diff options
| author | auth12 <[email protected]> | 2020-07-22 08:40:38 -0700 |
|---|---|---|
| committer | auth12 <[email protected]> | 2020-07-22 08:40:38 -0700 |
| commit | 4ff89e85e74884e8f04edb5c31a94b4323e895e9 (patch) | |
| tree | 65f98ebf9af0d0947e44bf397b1fac0f107d7a2f /client/wolfssl/src/internal.c | |
| parent | Client injection. (diff) | |
| download | loader-4ff89e85e74884e8f04edb5c31a94b4323e895e9.tar.xz loader-4ff89e85e74884e8f04edb5c31a94b4323e895e9.zip | |
Removed wolfssl
Diffstat (limited to 'client/wolfssl/src/internal.c')
| -rw-r--r-- | client/wolfssl/src/internal.c | 29412 |
1 files changed, 0 insertions, 29412 deletions
diff --git a/client/wolfssl/src/internal.c b/client/wolfssl/src/internal.c deleted file mode 100644 index fbdbb13..0000000 --- a/client/wolfssl/src/internal.c +++ /dev/null @@ -1,29412 +0,0 @@ -/* internal.c - * - * Copyright (C) 2006-2020 wolfSSL Inc. - * - * This file is part of wolfSSL. - * - * wolfSSL is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * wolfSSL is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA - */ - - - -#ifdef HAVE_CONFIG_H - #include <config.h> -#endif - -#include <wolfssl/wolfcrypt/settings.h> - -/* - * WOLFSSL_SMALL_CERT_VERIFY: - * Verify the certificate signature without using DecodedCert. Doubles up - * on some code but allows smaller peak heap memory usage. - * Cannot be used with WOLFSSL_NONBLOCK_OCSP. - * WOLFSSL_ALT_CERT_CHAINS: - * Allows CA's to be presented by peer, but not part of a valid chain. - * Default wolfSSL behavior is to require validation of all presented peer - * certificates. This also allows loading intermediate CA's as trusted - * and ignoring no signer failures for CA's up the chain to root. - */ - - -#ifdef EXTERNAL_OPTS_OPENVPN -#error EXTERNAL_OPTS_OPENVPN should not be defined\ - when building wolfSSL -#endif - -#ifndef WOLFCRYPT_ONLY - -#include <wolfssl/internal.h> -#include <wolfssl/error-ssl.h> -#include <wolfssl/wolfcrypt/asn.h> -#include <wolfssl/wolfcrypt/dh.h> -#ifdef NO_INLINE - #include <wolfssl/wolfcrypt/misc.h> -#else - #define WOLFSSL_MISC_INCLUDED - #include <wolfcrypt/src/misc.c> -#endif -#if defined(OPENSSL_EXTRA) && defined(WOLFCRYPT_HAVE_SRP) && !defined(NO_SHA) - #include <wolfssl/wolfcrypt/srp.h> -#endif - -#ifdef HAVE_LIBZ - #include "zlib.h" -#endif - -#ifdef HAVE_NTRU - #include "libntruencrypt/ntru_crypto.h" -#endif - -#if defined(DEBUG_WOLFSSL) || defined(SHOW_SECRETS) || \ - defined(CHACHA_AEAD_TEST) || defined(WOLFSSL_SESSION_EXPORT_DEBUG) - #ifndef NO_STDIO_FILESYSTEM - #include <stdio.h> - #endif -#endif - -#ifdef __sun - #include <sys/filio.h> -#endif - - -#define ERROR_OUT(err, eLabel) { ret = (err); goto eLabel; } - -#ifdef _MSC_VER - /* disable for while(0) cases at the .c level for now */ - #pragma warning(disable:4127) -#endif - -#if defined(WOLFSSL_CALLBACKS) && !defined(LARGE_STATIC_BUFFERS) - #error \ -WOLFSSL_CALLBACKS needs LARGE_STATIC_BUFFERS, please add LARGE_STATIC_BUFFERS -#endif - -#if defined(HAVE_SECURE_RENEGOTIATION) && defined(HAVE_RENEGOTIATION_INDICATION) - #error Cannot use both secure-renegotiation and renegotiation-indication -#endif - -#ifndef WOLFSSL_NO_TLS12 - -#ifndef NO_WOLFSSL_CLIENT - static int DoHelloVerifyRequest(WOLFSSL* ssl, const byte* input, word32*, - word32); - static int DoServerKeyExchange(WOLFSSL* ssl, const byte* input, word32*, - word32); - #ifndef NO_CERTS - static int DoCertificateRequest(WOLFSSL* ssl, const byte* input, word32*, - word32); - #endif - #ifdef HAVE_SESSION_TICKET - static int DoSessionTicket(WOLFSSL* ssl, const byte* input, word32*, - word32); - #endif -#endif - - -#ifndef NO_WOLFSSL_SERVER - static int DoClientKeyExchange(WOLFSSL* ssl, byte* input, word32*, word32); - #if (!defined(NO_RSA) || defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_ED448)) && !defined(WOLFSSL_NO_CLIENT_AUTH) - static int DoCertificateVerify(WOLFSSL* ssl, byte*, word32*, word32); - #endif - #ifdef WOLFSSL_DTLS - static int SendHelloVerifyRequest(WOLFSSL*, const byte*, byte); - #endif /* WOLFSSL_DTLS */ -#endif - -#endif /* !WOLFSSL_NO_TLS12 */ - -#ifdef WOLFSSL_DTLS - static WC_INLINE int DtlsCheckWindow(WOLFSSL* ssl); - static WC_INLINE int DtlsUpdateWindow(WOLFSSL* ssl); -#endif - - -enum processReply { - doProcessInit = 0, -#ifndef NO_WOLFSSL_SERVER - runProcessOldClientHello, -#endif - getRecordLayerHeader, - getData, - verifyEncryptedMessage, - decryptMessage, - verifyMessage, - runProcessingOneMessage -}; - - -#ifndef WOLFSSL_NO_TLS12 -#if !defined(NO_WOLFSSL_SERVER) || !defined(NO_WOLFSSL_CLIENT) - -/* Server random bytes for TLS v1.3 described downgrade protection mechanism. */ -static const byte tls13Downgrade[7] = { - 0x44, 0x4f, 0x57, 0x4e, 0x47, 0x52, 0x44 -}; -#define TLS13_DOWNGRADE_SZ sizeof(tls13Downgrade) - -#endif /* !NO_WOLFSSL_SERVER || !NO_WOLFSSL_CLIENT */ - -#if !defined(NO_OLD_TLS) && !defined(WOLFSSL_AEAD_ONLY) -static int SSL_hmac(WOLFSSL* ssl, byte* digest, const byte* in, word32 sz, - int padSz, int content, int verify); - -#endif - -#endif /* !WOLFSSL_NO_TLS12 */ - -#ifdef HAVE_QSH - int QSH_Init(WOLFSSL* ssl); -#endif - -#ifdef WOLFSSL_RENESAS_TSIP_TLS - int tsip_useable(const WOLFSSL *ssl); - int tsip_generatePremasterSecret(); - int tsip_generateEncryptPreMasterSecret(WOLFSSL *ssl, byte *out, word32 *outSz); -#endif -int IsTLS(const WOLFSSL* ssl) -{ - if (ssl->version.major == SSLv3_MAJOR && ssl->version.minor >=TLSv1_MINOR) - return 1; - - return 0; -} - - -int IsAtLeastTLSv1_2(const WOLFSSL* ssl) -{ - if (ssl->version.major == SSLv3_MAJOR && ssl->version.minor >=TLSv1_2_MINOR) - return 1; -#ifdef WOLFSSL_DTLS - if (ssl->version.major == DTLS_MAJOR && ssl->version.minor <= DTLSv1_2_MINOR) - return 1; -#endif - - return 0; -} - -int IsAtLeastTLSv1_3(const ProtocolVersion pv) -{ - return (pv.major == SSLv3_MAJOR && pv.minor >= TLSv1_3_MINOR); -} - -static WC_INLINE int IsEncryptionOn(WOLFSSL* ssl, int isSend) -{ - (void)isSend; - - #ifdef WOLFSSL_DTLS - /* For DTLS, epoch 0 is always not encrypted. */ - if (ssl->options.dtls && !isSend && ssl->keys.curEpoch == 0) - return 0; - #endif /* WOLFSSL_DTLS */ - -#ifdef WOLFSSL_TLS13 - if (isSend) - return ssl->encrypt.setup; - else - return ssl->decrypt.setup; -#else - return ssl->keys.encryptionOn; -#endif -} - - -#if defined(WOLFSSL_DTLS) || !defined(WOLFSSL_NO_TLS12) -/* If SCTP is not enabled returns the state of the dtls option. - * If SCTP is enabled returns dtls && !sctp. */ -static WC_INLINE int IsDtlsNotSctpMode(WOLFSSL* ssl) -{ - int result = ssl->options.dtls; - - if (result) { -#ifdef WOLFSSL_SCTP - result = !ssl->options.dtlsSctp; -#endif - } - - return result; -} -#endif /* DTLS || !WOLFSSL_NO_TLS12 */ - - -#ifdef HAVE_QSH -/* free all structs that where used with QSH */ -static int QSH_FreeAll(WOLFSSL* ssl) -{ - QSHKey* key = ssl->QSH_Key; - QSHKey* preKey = NULL; - QSHSecret* secret = ssl->QSH_secret; - QSHScheme* list = NULL; - QSHScheme* preList = NULL; - - /* free elements in struct */ - while (key) { - preKey = key; - if (key->pri.buffer) { - ForceZero(key->pri.buffer, key->pri.length); - XFREE(key->pri.buffer, ssl->heap, DYNAMIC_TYPE_PRIVATE_KEY); - } - if (key->pub.buffer) - XFREE(key->pub.buffer, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - key = (QSHKey*)key->next; - - /* free struct */ - XFREE(preKey, ssl->heap, DYNAMIC_TYPE_QSH); - } - - - /* free all of peers QSH keys */ - key = ssl->peerQSHKey; - while (key) { - preKey = key; - if (key->pri.buffer) { - ForceZero(key->pri.buffer, key->pri.length); - XFREE(key->pri.buffer, ssl->heap, DYNAMIC_TYPE_PRIVATE_KEY); - } - if (key->pub.buffer) - XFREE(key->pub.buffer, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - key = (QSHKey*)key->next; - - /* free struct */ - XFREE(preKey, ssl->heap, DYNAMIC_TYPE_QSH); - } - key = NULL; - - /* free secret information */ - if (secret) { - /* free up the QSHScheme list in QSHSecret */ - if (secret->list) - list = secret->list; - while (list) { - preList = list; - if (list->PK) - XFREE(list->PK, ssl->heap, DYNAMIC_TYPE_SECRET); - list = (QSHScheme*)list->next; - XFREE(preList, ssl->heap, DYNAMIC_TYPE_QSH); - } - - /* free secret buffers */ - if (secret->SerSi) { - if (secret->SerSi->buffer) { - /* clear extra secret material that supplemented Master Secret*/ - ForceZero(secret->SerSi->buffer, secret->SerSi->length); - XFREE(secret->SerSi->buffer, ssl->heap, DYNAMIC_TYPE_SECRET); - } - XFREE(secret->SerSi, ssl->heap, DYNAMIC_TYPE_SECRET); - } - if (secret->CliSi) { - if (secret->CliSi->buffer) { - /* clear extra secret material that supplemented Master Secret*/ - ForceZero(secret->CliSi->buffer, secret->CliSi->length); - XFREE(secret->CliSi->buffer, ssl->heap, DYNAMIC_TYPE_SECRET); - } - XFREE(secret->CliSi, ssl->heap, DYNAMIC_TYPE_SECRET); - } - } - XFREE(secret, ssl->heap, DYNAMIC_TYPE_QSH); - secret = NULL; - - return 0; -} -#endif - - -#ifdef HAVE_NTRU -static WOLFSSL_GLOBAL WC_RNG* rng; -static WOLFSSL_GLOBAL wolfSSL_Mutex* rngMutex; - -static word32 GetEntropy(unsigned char* out, word32 num_bytes) -{ - int ret = 0; - - if (rng == NULL) { - if ((rng = (WC_RNG*)XMALLOC(sizeof(WC_RNG), 0, - DYNAMIC_TYPE_RNG)) == NULL) - return DRBG_OUT_OF_MEMORY; - wc_InitRng(rng); - } - - if (rngMutex == NULL) { - if ((rngMutex = (wolfSSL_Mutex*)XMALLOC(sizeof(wolfSSL_Mutex), 0, - DYNAMIC_TYPE_MUTEX)) == NULL) - return DRBG_OUT_OF_MEMORY; - wc_InitMutex(rngMutex); - } - - ret |= wc_LockMutex(rngMutex); - ret |= wc_RNG_GenerateBlock(rng, out, num_bytes); - ret |= wc_UnLockMutex(rngMutex); - - if (ret != 0) - return DRBG_ENTROPY_FAIL; - - return DRBG_OK; -} -#endif /* HAVE_NTRU */ - -#ifdef HAVE_LIBZ - - /* alloc user allocs to work with zlib */ - static void* myAlloc(void* opaque, unsigned int item, unsigned int size) - { - (void)opaque; - return XMALLOC(item * size, opaque, DYNAMIC_TYPE_LIBZ); - } - - - static void myFree(void* opaque, void* memory) - { - (void)opaque; - XFREE(memory, opaque, DYNAMIC_TYPE_LIBZ); - } - - - /* init zlib comp/decomp streams, 0 on success */ - static int InitStreams(WOLFSSL* ssl) - { - ssl->c_stream.zalloc = (alloc_func)myAlloc; - ssl->c_stream.zfree = (free_func)myFree; - ssl->c_stream.opaque = (voidpf)ssl->heap; - - if (deflateInit(&ssl->c_stream, Z_DEFAULT_COMPRESSION) != Z_OK) - return ZLIB_INIT_ERROR; - - ssl->didStreamInit = 1; - - ssl->d_stream.zalloc = (alloc_func)myAlloc; - ssl->d_stream.zfree = (free_func)myFree; - ssl->d_stream.opaque = (voidpf)ssl->heap; - - if (inflateInit(&ssl->d_stream) != Z_OK) return ZLIB_INIT_ERROR; - - return 0; - } - - - static void FreeStreams(WOLFSSL* ssl) - { - if (ssl->didStreamInit) { - deflateEnd(&ssl->c_stream); - inflateEnd(&ssl->d_stream); - } - } - - - /* compress in to out, return out size or error */ - static int myCompress(WOLFSSL* ssl, byte* in, int inSz, byte* out, int outSz) - { - int err; - int currTotal = (int)ssl->c_stream.total_out; - - ssl->c_stream.next_in = in; - ssl->c_stream.avail_in = inSz; - ssl->c_stream.next_out = out; - ssl->c_stream.avail_out = outSz; - - err = deflate(&ssl->c_stream, Z_SYNC_FLUSH); - if (err != Z_OK && err != Z_STREAM_END) return ZLIB_COMPRESS_ERROR; - - return (int)ssl->c_stream.total_out - currTotal; - } - - - /* decompress in to out, return out size or error */ - static int myDeCompress(WOLFSSL* ssl, byte* in,int inSz, byte* out,int outSz) - { - int err; - int currTotal = (int)ssl->d_stream.total_out; - - ssl->d_stream.next_in = in; - ssl->d_stream.avail_in = inSz; - ssl->d_stream.next_out = out; - ssl->d_stream.avail_out = outSz; - - err = inflate(&ssl->d_stream, Z_SYNC_FLUSH); - if (err != Z_OK && err != Z_STREAM_END) return ZLIB_DECOMPRESS_ERROR; - - return (int)ssl->d_stream.total_out - currTotal; - } - -#endif /* HAVE_LIBZ */ - - -#ifdef WOLFSSL_SESSION_EXPORT -#ifdef WOLFSSL_DTLS -/* serializes the cipher specs struct for exporting */ -static int ExportCipherSpecState(WOLFSSL* ssl, byte* exp, word32 len, byte ver) -{ - word32 idx = 0; - CipherSpecs* specs; - - WOLFSSL_ENTER("ExportCipherSpecState"); - - if (exp == NULL || ssl == NULL) { - return BAD_FUNC_ARG; - } - - specs= &(ssl->specs); - - if (DTLS_EXPORT_SPC_SZ > len) { - return BUFFER_E; - } - - XMEMSET(exp, 0, DTLS_EXPORT_SPC_SZ); - - c16toa(specs->key_size, exp + idx); idx += OPAQUE16_LEN; - c16toa(specs->iv_size, exp + idx); idx += OPAQUE16_LEN; - c16toa(specs->block_size, exp + idx); idx += OPAQUE16_LEN; - c16toa(specs->aead_mac_size, exp + idx); idx += OPAQUE16_LEN; - exp[idx++] = specs->bulk_cipher_algorithm; - exp[idx++] = specs->cipher_type; - exp[idx++] = specs->mac_algorithm; - exp[idx++] = specs->kea; - exp[idx++] = specs->sig_algo; - exp[idx++] = specs->hash_size; - exp[idx++] = specs->pad_size; - exp[idx++] = specs->static_ecdh; - - if (idx != DTLS_EXPORT_SPC_SZ) { - WOLFSSL_MSG("DTLS_EXPORT_SPC_SZ needs updated and export version"); - return DTLS_EXPORT_VER_E; - } - - WOLFSSL_LEAVE("ExportCipherSpecState", idx); - (void)ver; - return idx; -} - - -/* serializes the key struct for exporting */ -static int ExportKeyState(WOLFSSL* ssl, byte* exp, word32 len, byte ver, - byte small) -{ - word32 idx = 0; - byte sz; - Keys* keys; - - WOLFSSL_ENTER("ExportKeyState"); - - if (exp == NULL || ssl == NULL) { - return BAD_FUNC_ARG; - } - - keys = &(ssl->keys); - - if (DTLS_EXPORT_MIN_KEY_SZ > len) { - WOLFSSL_MSG("Buffer not large enough for minimum key struct size"); - return BUFFER_E; - } - - XMEMSET(exp, 0, DTLS_EXPORT_MIN_KEY_SZ); - - c32toa(keys->peer_sequence_number_hi, exp + idx); idx += OPAQUE32_LEN; - c32toa(keys->peer_sequence_number_lo, exp + idx); idx += OPAQUE32_LEN; - c32toa(keys->sequence_number_hi, exp + idx); idx += OPAQUE32_LEN; - c32toa(keys->sequence_number_lo, exp + idx); idx += OPAQUE32_LEN; - - c16toa(keys->peerSeq[0].nextEpoch, exp + idx); idx += OPAQUE16_LEN; - c16toa(keys->peerSeq[0].nextSeq_hi, exp + idx); idx += OPAQUE16_LEN; - c32toa(keys->peerSeq[0].nextSeq_lo, exp + idx); idx += OPAQUE32_LEN; - c16toa(keys->curEpoch, exp + idx); idx += OPAQUE16_LEN; - c16toa(keys->curSeq_hi, exp + idx); idx += OPAQUE16_LEN; - c32toa(keys->curSeq_lo, exp + idx); idx += OPAQUE32_LEN; - c16toa(keys->peerSeq[0].prevSeq_hi, exp + idx); idx += OPAQUE16_LEN; - c32toa(keys->peerSeq[0].prevSeq_lo, exp + idx); idx += OPAQUE32_LEN; - - c16toa(keys->dtls_peer_handshake_number, exp + idx); idx += OPAQUE16_LEN; - c16toa(keys->dtls_expected_peer_handshake_number, exp + idx); - idx += OPAQUE16_LEN; - - c16toa(keys->dtls_sequence_number_hi, exp + idx); idx += OPAQUE16_LEN; - c32toa(keys->dtls_sequence_number_lo, exp + idx); idx += OPAQUE32_LEN; - c16toa(keys->dtls_prev_sequence_number_hi, exp + idx); idx += OPAQUE16_LEN; - c32toa(keys->dtls_prev_sequence_number_lo, exp + idx); idx += OPAQUE32_LEN; - c16toa(keys->dtls_epoch, exp + idx); idx += OPAQUE16_LEN; - c16toa(keys->dtls_handshake_number, exp + idx); idx += OPAQUE16_LEN; - c32toa(keys->encryptSz, exp + idx); idx += OPAQUE32_LEN; - c32toa(keys->padSz, exp + idx); idx += OPAQUE32_LEN; - exp[idx++] = keys->encryptionOn; - exp[idx++] = keys->decryptedCur; - - /* from here on the buffer needs checked because is variable length that - * can be larger than DTLS_EXPORT_MIN_KEY_SZ */ - { - word32 i; - if ((OPAQUE16_LEN * 2) + idx + - (2 * (WOLFSSL_DTLS_WINDOW_WORDS * OPAQUE32_LEN)) > len) { - WOLFSSL_MSG("Buffer not large enough for WOLFSSL_DTLS_WINDOW_WORDS"); - return BUFFER_E; - } - - c16toa(WOLFSSL_DTLS_WINDOW_WORDS, exp + idx); idx += OPAQUE16_LEN; - for (i = 0; i < WOLFSSL_DTLS_WINDOW_WORDS; i++) { - c32toa(keys->peerSeq[0].window[i], exp + idx); - idx += OPAQUE32_LEN; - } - c16toa(WOLFSSL_DTLS_WINDOW_WORDS, exp + idx); idx += OPAQUE16_LEN; - for (i = 0; i < WOLFSSL_DTLS_WINDOW_WORDS; i++) { - c32toa(keys->peerSeq[0].prevWindow[i], exp + idx); - idx += OPAQUE32_LEN; - } - } - - if (idx >= len) { - WOLFSSL_MSG("Buffer not large enough for truncated hmac flag"); - return BUFFER_E; - } - -#ifdef HAVE_TRUNCATED_HMAC - sz = ssl->truncated_hmac ? TRUNCATED_HMAC_SZ: ssl->specs.hash_size; - exp[idx++] = ssl->truncated_hmac; -#else - sz = ssl->specs.hash_size; - exp[idx++] = 0; /* no truncated hmac */ -#endif - - sz = (small)? 0: sz; - if (idx + (sz * 2) + OPAQUE8_LEN > len) { - WOLFSSL_MSG("Buffer not large enough for MAC secret"); - return BUFFER_E; - } - - exp[idx++] = sz; - if (sz > 0) { - #ifndef WOLFSSL_AEAD_ONLY - XMEMCPY(exp + idx, keys->client_write_MAC_secret, sz); idx += sz; - XMEMCPY(exp + idx, keys->server_write_MAC_secret, sz); idx += sz; - #else - XMEMSET(exp + idx, 0, sz); idx += sz; - XMEMSET(exp + idx, 0, sz); idx += sz; - #endif - } - - sz = (small)? 0: ssl->specs.key_size; - if (idx + (sz * 2) + OPAQUE8_LEN > len) { - WOLFSSL_MSG("Buffer not large enough for write key"); - return BUFFER_E; - } - - exp[idx++] = sz; - if (sz > 0) { - XMEMCPY(exp + idx, keys->client_write_key, sz); idx += sz; - XMEMCPY(exp + idx, keys->server_write_key, sz); idx += sz; - } - - sz = (small)? 0: ssl->specs.iv_size; - if (idx + (sz * 2) + OPAQUE8_LEN + AEAD_MAX_EXP_SZ > len) { - WOLFSSL_MSG("Buffer not large enough for IVs"); - return BUFFER_E; - } - - exp[idx++] = sz; - if (sz > 0) { - XMEMCPY(exp + idx, keys->client_write_IV, sz); idx += sz; - XMEMCPY(exp + idx, keys->server_write_IV, sz); idx += sz; - } - XMEMCPY(exp + idx, keys->aead_exp_IV, AEAD_MAX_EXP_SZ); - idx += AEAD_MAX_EXP_SZ; - - sz = (small)? 0: AEAD_MAX_IMP_SZ; - if (idx + (sz * 2) + OPAQUE8_LEN > len) { - WOLFSSL_MSG("Buffer not large enough for imp IVs"); - return BUFFER_E; - } - exp[idx++] = sz; - if (sz > 0) { - XMEMCPY(exp + idx, keys->aead_enc_imp_IV, sz); idx += sz; - XMEMCPY(exp + idx, keys->aead_dec_imp_IV, sz); idx += sz; - } - - /* DTLS_EXPORT_KEY_SZ is max value. idx size can vary */ - if (idx > DTLS_EXPORT_KEY_SZ) { - WOLFSSL_MSG("DTLS_EXPORT_KEY_SZ needs updated and export version"); - return DTLS_EXPORT_VER_E; - } - - WOLFSSL_LEAVE("ExportKeyState", idx); - (void)ver; - return idx; -} - -static int ImportCipherSpecState(WOLFSSL* ssl, byte* exp, word32 len, byte ver) -{ - word32 idx = 0; - CipherSpecs* specs; - - WOLFSSL_ENTER("ImportCipherSpecState"); - - if (exp == NULL || ssl == NULL) { - return BAD_FUNC_ARG; - } - - specs= &(ssl->specs); - - if (DTLS_EXPORT_SPC_SZ > len) { - WOLFSSL_MSG("Buffer not large enough for max spec struct size"); - return BUFFER_E; - } - - ato16(exp + idx, &specs->key_size); idx += OPAQUE16_LEN; - ato16(exp + idx, &specs->iv_size); idx += OPAQUE16_LEN; - ato16(exp + idx, &specs->block_size); idx += OPAQUE16_LEN; - ato16(exp + idx, &specs->aead_mac_size); idx += OPAQUE16_LEN; - specs->bulk_cipher_algorithm = exp[idx++]; - specs->cipher_type = exp[idx++]; - specs->mac_algorithm = exp[idx++]; - specs->kea = exp[idx++]; - specs->sig_algo = exp[idx++]; - specs->hash_size = exp[idx++]; - specs->pad_size = exp[idx++]; - specs->static_ecdh = exp[idx++]; - - WOLFSSL_LEAVE("ImportCipherSpecState", idx); - (void)ver; - return idx; -} - - -static int ImportKeyState(WOLFSSL* ssl, byte* exp, word32 len, byte ver) -{ - word32 idx = 0; - byte sz; - Keys* keys; - - WOLFSSL_ENTER("ImportKeyState"); - - if (exp == NULL || ssl == NULL) { - return BAD_FUNC_ARG; - } - - keys = &(ssl->keys); - - /* check minimum length -- includes byte used for size indicators */ - if (len < DTLS_EXPORT_MIN_KEY_SZ) { - WOLFSSL_MSG("Buffer not large enough for minimum expected size"); - return BUFFER_E; - } - ato32(exp + idx, &keys->peer_sequence_number_hi); idx += OPAQUE32_LEN; - ato32(exp + idx, &keys->peer_sequence_number_lo); idx += OPAQUE32_LEN; - ato32(exp + idx, &keys->sequence_number_hi); idx += OPAQUE32_LEN; - ato32(exp + idx, &keys->sequence_number_lo); idx += OPAQUE32_LEN; - - ato16(exp + idx, &keys->peerSeq[0].nextEpoch); idx += OPAQUE16_LEN; - ato16(exp + idx, &keys->peerSeq[0].nextSeq_hi); idx += OPAQUE16_LEN; - ato32(exp + idx, &keys->peerSeq[0].nextSeq_lo); idx += OPAQUE32_LEN; - ato16(exp + idx, &keys->curEpoch); idx += OPAQUE16_LEN; - ato16(exp + idx, &keys->curSeq_hi); idx += OPAQUE16_LEN; - ato32(exp + idx, &keys->curSeq_lo); idx += OPAQUE32_LEN; - ato16(exp + idx, &keys->peerSeq[0].prevSeq_hi); idx += OPAQUE16_LEN; - ato32(exp + idx, &keys->peerSeq[0].prevSeq_lo); idx += OPAQUE32_LEN; - - ato16(exp + idx, &keys->dtls_peer_handshake_number); idx += OPAQUE16_LEN; - ato16(exp + idx, &keys->dtls_expected_peer_handshake_number); - idx += OPAQUE16_LEN; - - ato16(exp + idx, &keys->dtls_sequence_number_hi); idx += OPAQUE16_LEN; - ato32(exp + idx, &keys->dtls_sequence_number_lo); idx += OPAQUE32_LEN; - ato16(exp + idx, &keys->dtls_prev_sequence_number_hi); idx += OPAQUE16_LEN; - ato32(exp + idx, &keys->dtls_prev_sequence_number_lo); idx += OPAQUE32_LEN; - ato16(exp + idx, &keys->dtls_epoch); idx += OPAQUE16_LEN; - ato16(exp + idx, &keys->dtls_handshake_number); idx += OPAQUE16_LEN; - ato32(exp + idx, &keys->encryptSz); idx += OPAQUE32_LEN; - ato32(exp + idx, &keys->padSz); idx += OPAQUE32_LEN; - keys->encryptionOn = exp[idx++]; - keys->decryptedCur = exp[idx++]; - - { - word16 i, wordCount, wordAdj = 0; - - /* do window */ - ato16(exp + idx, &wordCount); - idx += OPAQUE16_LEN; - - if (wordCount > WOLFSSL_DTLS_WINDOW_WORDS) { - wordCount = WOLFSSL_DTLS_WINDOW_WORDS; - wordAdj = (WOLFSSL_DTLS_WINDOW_WORDS - wordCount) * sizeof(word32); - } - - XMEMSET(keys->peerSeq[0].window, 0xFF, DTLS_SEQ_SZ); - for (i = 0; i < wordCount; i++) { - ato32(exp + idx, &keys->peerSeq[0].window[i]); - idx += OPAQUE32_LEN; - } - idx += wordAdj; - - /* do prevWindow */ - ato16(exp + idx, &wordCount); - idx += OPAQUE16_LEN; - - if (wordCount > WOLFSSL_DTLS_WINDOW_WORDS) { - wordCount = WOLFSSL_DTLS_WINDOW_WORDS; - wordAdj = (WOLFSSL_DTLS_WINDOW_WORDS - wordCount) * sizeof(word32); - } - - XMEMSET(keys->peerSeq[0].prevWindow, 0xFF, DTLS_SEQ_SZ); - for (i = 0; i < wordCount; i++) { - ato32(exp + idx, &keys->peerSeq[0].prevWindow[i]); - idx += OPAQUE32_LEN; - } - idx += wordAdj; - - } - -#ifdef HAVE_TRUNCATED_HMAC - ssl->truncated_hmac = exp[idx++]; -#else - idx++; /* no truncated hmac */ -#endif - sz = exp[idx++]; -#ifndef WOLFSSL_AEAD_ONLY - if (sz > sizeof(keys->client_write_MAC_secret) || (sz * 2) + idx > len) { - WOLFSSL_MSG("Buffer not large enough for MAC import"); - return BUFFER_E; - } - if (sz > 0) { - XMEMCPY(keys->client_write_MAC_secret, exp + idx, sz); idx += sz; - XMEMCPY(keys->server_write_MAC_secret, exp + idx, sz); idx += sz; - } -#else - if (sz + idx > len) { - return BUFFER_E; - } - idx += sz; idx += sz; -#endif - - sz = exp[idx++]; - if (sz > sizeof(keys->client_write_key) || (sz * 2) + idx > len) { - WOLFSSL_MSG("Buffer not large enough for key import"); - return BUFFER_E; - } - if (sz > 0) { - XMEMCPY(keys->client_write_key, exp + idx, sz); idx += sz; - XMEMCPY(keys->server_write_key, exp + idx, sz); idx += sz; - } - - sz = exp[idx++]; - if (sz > sizeof(keys->client_write_IV) || (sz * 2) + idx > len) { - WOLFSSL_MSG("Buffer not large enough for write IV import"); - return BUFFER_E; - } - if (sz > 0) { - XMEMCPY(keys->client_write_IV, exp + idx, sz); idx += sz; - XMEMCPY(keys->server_write_IV, exp + idx, sz); idx += sz; - } - XMEMCPY(keys->aead_exp_IV, exp + idx, AEAD_MAX_EXP_SZ); - idx += AEAD_MAX_EXP_SZ; - - sz = exp[idx++]; - if (sz > sizeof(keys->aead_enc_imp_IV) || (sz * 2) + idx > len) { - WOLFSSL_MSG("Buffer not large enough for imp IV import"); - return BUFFER_E; - } - if (sz > 0) { - XMEMCPY(keys->aead_enc_imp_IV, exp + idx, sz); idx += sz; - XMEMCPY(keys->aead_dec_imp_IV, exp + idx, sz); idx += sz; - } - - WOLFSSL_LEAVE("ImportKeyState", idx); - (void)ver; - return idx; -} - - -/* copy over necessary information from Options struct to buffer - * On success returns size of buffer used on failure returns a negative value */ -static int dtls_export_new(WOLFSSL* ssl, byte* exp, word32 len, byte ver) -{ - int idx = 0; - word16 zero = 0; - Options* options = &ssl->options; - - WOLFSSL_ENTER("dtls_export_new"); - - if (exp == NULL || options == NULL || len < DTLS_EXPORT_OPT_SZ) { - return BAD_FUNC_ARG; - } - - XMEMSET(exp, 0, DTLS_EXPORT_OPT_SZ); - - /* these options are kept and sent to indicate verify status and strength - * of handshake */ - exp[idx++] = options->sendVerify; - exp[idx++] = options->verifyPeer; - exp[idx++] = options->verifyNone; - exp[idx++] = options->downgrade; -#ifndef NO_DH - c16toa(options->minDhKeySz, exp + idx); idx += OPAQUE16_LEN; - c16toa(options->maxDhKeySz, exp + idx); idx += OPAQUE16_LEN; - c16toa(options->dhKeySz, exp + idx); idx += OPAQUE16_LEN; -#else - c16toa(zero, exp + idx); idx += OPAQUE16_LEN; - c16toa(zero, exp + idx); idx += OPAQUE16_LEN; - c16toa(zero, exp + idx); idx += OPAQUE16_LEN; -#endif -#ifndef NO_RSA - c16toa((word16)(options->minRsaKeySz), exp + idx); idx += OPAQUE16_LEN; -#else - c16toa(zero, exp + idx); idx += OPAQUE16_LEN; -#endif -#ifdef HAVE_ECC - c16toa((word16)(options->minEccKeySz), exp + idx); idx += OPAQUE16_LEN; -#else - c16toa(zero, exp + idx); idx += OPAQUE16_LEN; -#endif - - /* these options are kept to indicate state and behavior */ -#ifndef NO_PSK - exp[idx++] = options->havePSK; -#else - exp[idx++] = 0; -#endif - exp[idx++] = options->sessionCacheOff; - exp[idx++] = options->sessionCacheFlushOff; - exp[idx++] = options->side; - exp[idx++] = options->resuming; - exp[idx++] = options->haveSessionId; - exp[idx++] = options->tls; - exp[idx++] = options->tls1_1; - exp[idx++] = options->dtls; - exp[idx++] = options->connReset; - exp[idx++] = options->isClosed; - exp[idx++] = options->closeNotify; - exp[idx++] = options->sentNotify; - exp[idx++] = options->usingCompression; - exp[idx++] = options->haveRSA; - exp[idx++] = options->haveECC; - exp[idx++] = options->haveDH; - exp[idx++] = options->haveNTRU; - exp[idx++] = options->haveQSH; - exp[idx++] = options->haveECDSAsig; - exp[idx++] = options->haveStaticECC; - exp[idx++] = options->havePeerVerify; - exp[idx++] = options->usingPSK_cipher; - exp[idx++] = options->usingAnon_cipher; - exp[idx++] = options->sendAlertState; - exp[idx++] = options->partialWrite; - exp[idx++] = options->quietShutdown; - exp[idx++] = options->groupMessages; -#ifdef HAVE_POLY1305 - exp[idx++] = options->oldPoly; -#else - exp[idx++] = 0; -#endif -#ifdef HAVE_ANON - exp[idx++] = options->haveAnon; -#else - exp[idx++] = 0; -#endif -#ifdef HAVE_SESSION_TICKET - exp[idx++] = options->createTicket; - exp[idx++] = options->useTicket; -#ifdef WOLFSSL_TLS13 - if (ver > DTLS_EXPORT_VERSION_3) { - exp[idx++] = options->noTicketTls13; - } -#else - if (ver > DTLS_EXPORT_VERSION_3) { - exp[idx++] = 0; - } -#endif -#else - exp[idx++] = 0; - exp[idx++] = 0; - if (ver > DTLS_EXPORT_VERSION_3) { - exp[idx++] = 0; - } -#endif - exp[idx++] = options->processReply; - exp[idx++] = options->cipherSuite0; - exp[idx++] = options->cipherSuite; - exp[idx++] = options->serverState; - exp[idx++] = options->clientState; - exp[idx++] = options->handShakeState; - exp[idx++] = options->handShakeDone; - exp[idx++] = options->minDowngrade; - exp[idx++] = options->connectState; - exp[idx++] = options->acceptState; - exp[idx++] = options->asyncState; - - /* version of connection */ - exp[idx++] = ssl->version.major; - exp[idx++] = ssl->version.minor; - - (void)zero; - - /* check if changes were made and notify of need to update export version */ - switch (ver) { - case DTLS_EXPORT_VERSION_3: - if (idx != DTLS_EXPORT_OPT_SZ_3) { - WOLFSSL_MSG("Update DTLS_EXPORT_OPT_SZ and version of export"); - return DTLS_EXPORT_VER_E; - } - break; - - case DTLS_EXPORT_VERSION: - if (idx != DTLS_EXPORT_OPT_SZ) { - WOLFSSL_MSG("Update DTLS_EXPORT_OPT_SZ and version of export"); - return DTLS_EXPORT_VER_E; - } - break; - - default: - WOLFSSL_MSG("New version case needs added to wolfSSL export"); - return DTLS_EXPORT_VER_E; - } - - WOLFSSL_LEAVE("dtls_export_new", idx); - - return idx; -} - - -/* copy items from Export struct to Options struct - * On success returns size of buffer used on failure returns a negative value */ -static int dtls_export_load(WOLFSSL* ssl, byte* exp, word32 len, byte ver) -{ - int idx = 0; - Options* options = &ssl->options; - - switch (ver) { - case DTLS_EXPORT_VERSION: - if (len < DTLS_EXPORT_OPT_SZ) { - WOLFSSL_MSG("Sanity check on buffer size failed"); - return BAD_FUNC_ARG; - } - break; - - case DTLS_EXPORT_VERSION_3: - if (len < DTLS_EXPORT_OPT_SZ_3) { - WOLFSSL_MSG("Sanity check on buffer size failed"); - return BAD_FUNC_ARG; - } - break; - - default: - WOLFSSL_MSG("Export version not supported"); - return BAD_FUNC_ARG; - } - - if (exp == NULL || options == NULL) { - return BAD_FUNC_ARG; - } - - - /* these options are kept and sent to indicate verify status and strength - * of handshake */ - options->sendVerify = exp[idx++]; - options->verifyPeer = exp[idx++]; - options->verifyNone = exp[idx++]; - options->downgrade = exp[idx++]; -#ifndef NO_DH - ato16(exp + idx, &(options->minDhKeySz)); idx += OPAQUE16_LEN; - ato16(exp + idx, &(options->maxDhKeySz)); idx += OPAQUE16_LEN; - ato16(exp + idx, &(options->dhKeySz)); idx += OPAQUE16_LEN; -#else - idx += OPAQUE16_LEN; - idx += OPAQUE16_LEN; - idx += OPAQUE16_LEN; -#endif -#ifndef NO_RSA - ato16(exp + idx, (word16*)&(options->minRsaKeySz)); idx += OPAQUE16_LEN; -#else - idx += OPAQUE16_LEN; -#endif -#ifdef HAVE_ECC - ato16(exp + idx, (word16*)&(options->minEccKeySz)); idx += OPAQUE16_LEN; -#else - idx += OPAQUE16_LEN; -#endif - - /* these options are kept to indicate state and behavior */ -#ifndef NO_PSK - options->havePSK = exp[idx++]; -#else - idx++; -#endif - options->sessionCacheOff = exp[idx++]; - options->sessionCacheFlushOff = exp[idx++]; - options->side = exp[idx++]; - options->resuming = exp[idx++]; - options->haveSessionId = exp[idx++]; - options->tls = exp[idx++]; - options->tls1_1 = exp[idx++]; - options->dtls = exp[idx++]; - options->connReset = exp[idx++]; - options->isClosed = exp[idx++]; - options->closeNotify = exp[idx++]; - options->sentNotify = exp[idx++]; - options->usingCompression = exp[idx++]; - options->haveRSA = exp[idx++]; - options->haveECC = exp[idx++]; - options->haveDH = exp[idx++]; - options->haveNTRU = exp[idx++]; - options->haveQSH = exp[idx++]; - options->haveECDSAsig = exp[idx++]; - options->haveStaticECC = exp[idx++]; - options->havePeerVerify = exp[idx++]; - options->usingPSK_cipher = exp[idx++]; - options->usingAnon_cipher = exp[idx++]; - options->sendAlertState = exp[idx++]; - options->partialWrite = exp[idx++]; - options->quietShutdown = exp[idx++]; - options->groupMessages = exp[idx++]; -#ifdef HAVE_POLY1305 - options->oldPoly = exp[idx++]; /* set when to use old rfc way of poly*/ -#else - idx++; -#endif -#ifdef HAVE_ANON - options->haveAnon = exp[idx++]; /* User wants to allow Anon suites */ -#else - idx++; -#endif -#ifdef HAVE_SESSION_TICKET - options->createTicket = exp[idx++]; /* Server to create new Ticket */ - options->useTicket = exp[idx++]; /* Use Ticket not session cache */ -#ifdef WOLFSSL_TLS13 - if (ver > DTLS_EXPORT_VERSION_3) { - options->noTicketTls13 = exp[idx++];/* Server won't create new Ticket */ - } -#else - if (ver > DTLS_EXPORT_VERSION_3) { - exp[idx++] = 0; - } -#endif -#else - idx++; - idx++; - if (ver > DTLS_EXPORT_VERSION_3) { - idx++; - } -#endif - options->processReply = exp[idx++]; - options->cipherSuite0 = exp[idx++]; - options->cipherSuite = exp[idx++]; - options->serverState = exp[idx++]; - options->clientState = exp[idx++]; - options->handShakeState = exp[idx++]; - options->handShakeDone = exp[idx++]; - options->minDowngrade = exp[idx++]; - options->connectState = exp[idx++]; - options->acceptState = exp[idx++]; - options->asyncState = exp[idx++]; - - /* version of connection */ - if (ssl->version.major != exp[idx++] || ssl->version.minor != exp[idx++]) { - WOLFSSL_MSG("Version mismatch ie DTLS v1 vs v1.2"); - return VERSION_ERROR; - } - - return idx; -} - -#ifndef WOLFSSL_SESSION_EXPORT_NOPEER -static int ExportPeerInfo(WOLFSSL* ssl, byte* exp, word32 len, byte ver) -{ - int idx = 0; - int ipSz = DTLS_EXPORT_IP; /* start as max size */ - int fam = 0; - word16 port = 0; - char ip[DTLS_EXPORT_IP]; - - if (ver != DTLS_EXPORT_VERSION) { - WOLFSSL_MSG("Export version not supported"); - return BAD_FUNC_ARG; - } - - if (ssl == NULL || exp == NULL || len < sizeof(ip) + 3 * DTLS_EXPORT_LEN) { - return BAD_FUNC_ARG; - } - - if (ssl->ctx->CBGetPeer == NULL) { - WOLFSSL_MSG("No get peer call back set"); - return BAD_FUNC_ARG; - } - if (ssl->ctx->CBGetPeer(ssl, ip, &ipSz, &port, &fam) != WOLFSSL_SUCCESS) { - WOLFSSL_MSG("Get peer callback error"); - return SOCKET_ERROR_E; - } - - /* check that ipSz/fam is not negative or too large since user can set cb */ - if (ipSz < 0 || ipSz > DTLS_EXPORT_IP || fam < 0) { - WOLFSSL_MSG("Bad ipSz or fam returned from get peer callback"); - return SOCKET_ERROR_E; - } - - c16toa((word16)fam, exp + idx); idx += DTLS_EXPORT_LEN; - c16toa((word16)ipSz, exp + idx); idx += DTLS_EXPORT_LEN; - XMEMCPY(exp + idx, ip, ipSz); idx += ipSz; - c16toa(port, exp + idx); idx += DTLS_EXPORT_LEN; - - return idx; -} -#endif /* !WOLFSSL_SESSION_EXPORT_NOPEER */ - - -static int ImportPeerInfo(WOLFSSL* ssl, byte* buf, word32 len, byte ver) -{ - word16 idx = 0; - word16 ipSz; - word16 fam; - word16 port; - char ip[DTLS_EXPORT_IP]; - - if (ver != DTLS_EXPORT_VERSION && ver != DTLS_EXPORT_VERSION_3) { - WOLFSSL_MSG("Export version not supported"); - return BAD_FUNC_ARG; - } - - if (len == 0) { - WOLFSSL_MSG("No peer info sent"); - return 0; - } - - if (ssl == NULL || buf == NULL || len < 3 * DTLS_EXPORT_LEN) { - return BAD_FUNC_ARG; - } - - /* import sin family */ - ato16(buf + idx, &fam); idx += DTLS_EXPORT_LEN; - - /* import ip address idx, and ipSz are unsigned but cast for enum */ - ato16(buf + idx, &ipSz); idx += DTLS_EXPORT_LEN; - if (ipSz >= sizeof(ip) || (word16)(idx + ipSz + DTLS_EXPORT_LEN) > len) { - return BUFFER_E; - } - XMEMSET(ip, 0, sizeof(ip)); - XMEMCPY(ip, buf + idx, ipSz); idx += ipSz; - ip[ipSz] = '\0'; /* with check that ipSz less than ip this is valid */ - ato16(buf + idx, &port); idx += DTLS_EXPORT_LEN; - - /* sanity check for a function to call, then use it to import peer info */ - if (ssl->ctx->CBSetPeer == NULL) { - WOLFSSL_MSG("No set peer function"); - return BAD_FUNC_ARG; - } - if (ssl->ctx->CBSetPeer(ssl, ip, ipSz, port, fam) != WOLFSSL_SUCCESS) { - WOLFSSL_MSG("Error setting peer info"); - return SOCKET_ERROR_E; - } - - return idx; -} - - -/* WOLFSSL_LOCAL function that serializes the current WOLFSSL session state only - * buf is used to hold the serialized WOLFSSL struct and sz is the size of buf - * passed in. - * On success returns the size of serialized session state.*/ -int wolfSSL_dtls_export_state_internal(WOLFSSL* ssl, byte* buf, word32 sz) -{ - int ret; - word32 idx = 0; - word32 totalLen = 0; - - WOLFSSL_ENTER("wolfSSL_dtls_export_state_internal"); - - if (buf == NULL || ssl == NULL) { - WOLFSSL_LEAVE("wolfSSL_dtls_export_state_internal", BAD_FUNC_ARG); - return BAD_FUNC_ARG; - } - - totalLen += DTLS_EXPORT_LEN * 2; /* 2 protocol bytes and 2 length bytes */ - /* each of the following have a 2 byte length before data */ - totalLen += DTLS_EXPORT_LEN + DTLS_EXPORT_MIN_KEY_SZ; - if (totalLen > sz) { - WOLFSSL_LEAVE("wolfSSL_dtls_export_state_internal", BUFFER_E); - return BUFFER_E; - } - - buf[idx++] = (byte)DTLS_EXPORT_STATE_PRO; - buf[idx++] = ((byte)DTLS_EXPORT_STATE_PRO & 0xF0) | - ((byte)DTLS_EXPORT_VERSION & 0X0F); - idx += DTLS_EXPORT_LEN; /* leave room for total length */ - - /* export keys struct and dtls state -- variable length stored in ret */ - idx += DTLS_EXPORT_LEN; /* leave room for length */ - if ((ret = ExportKeyState(ssl, buf + idx, sz - idx, - DTLS_EXPORT_VERSION, 1)) < 0) { - WOLFSSL_LEAVE("wolfSSL_dtls_export_state_internal", ret); - return ret; - } - c16toa((word16)ret, buf + idx - DTLS_EXPORT_LEN); idx += ret; - - /* place total length of exported buffer minus 2 bytes protocol/version */ - c16toa((word16)(idx - DTLS_EXPORT_LEN), buf + DTLS_EXPORT_LEN); - -#ifdef WOLFSSL_SESSION_EXPORT_DEBUG - /* if compiled with debug options then print the version, protocol, size */ - { - char debug[256]; - XSNPRINTF(debug, sizeof(debug), "Exporting DTLS session state\n" - "\tVersion : %d\n\tProtocol : %02X%01X\n\tLength of: %d\n\n" - , (int)DTLS_EXPORT_VERSION, buf[0], (buf[1] >> 4), idx - 2); - WOLFSSL_MSG(debug); - } -#endif /* WOLFSSL_SESSION_EXPORT_DEBUG */ - - WOLFSSL_LEAVE("wolfSSL_dtls_export_state_internal", idx); - return idx; -} - - -/* WOLFSSL_LOCAL function that serializes the current WOLFSSL session - * buf is used to hold the serialized WOLFSSL struct and sz is the size of buf - * passed in. - * On success returns the size of serialized session.*/ -int wolfSSL_dtls_export_internal(WOLFSSL* ssl, byte* buf, word32 sz) -{ - int ret; - word32 idx = 0; - word32 totalLen = 0; - - WOLFSSL_ENTER("wolfSSL_dtls_export_internal"); - - if (buf == NULL || ssl == NULL) { - WOLFSSL_LEAVE("wolfSSL_dtls_export_internal", BAD_FUNC_ARG); - return BAD_FUNC_ARG; - } - - totalLen += DTLS_EXPORT_LEN * 2; /* 2 protocol bytes and 2 length bytes */ - /* each of the following have a 2 byte length before data */ - totalLen += DTLS_EXPORT_LEN + DTLS_EXPORT_OPT_SZ; - totalLen += DTLS_EXPORT_LEN + DTLS_EXPORT_KEY_SZ; - totalLen += DTLS_EXPORT_LEN + DTLS_EXPORT_SPC_SZ; - totalLen += DTLS_EXPORT_LEN + ssl->buffers.dtlsCtx.peer.sz; - - if (totalLen > sz) { - WOLFSSL_LEAVE("wolfSSL_dtls_export_internal", BUFFER_E); - return BUFFER_E; - } - - buf[idx++] = (byte)DTLS_EXPORT_PRO; - buf[idx++] = ((byte)DTLS_EXPORT_PRO & 0xF0) | - ((byte)DTLS_EXPORT_VERSION & 0X0F); - - idx += DTLS_EXPORT_LEN; /* leave spot for length */ - - c16toa((word16)DTLS_EXPORT_OPT_SZ, buf + idx); idx += DTLS_EXPORT_LEN; - if ((ret = dtls_export_new(ssl, buf + idx, sz - idx, - DTLS_EXPORT_VERSION)) < 0) { - WOLFSSL_LEAVE("wolfSSL_dtls_export_internal", ret); - return ret; - } - idx += ret; - - /* export keys struct and dtls state -- variable length stored in ret */ - idx += DTLS_EXPORT_LEN; /* leave room for length */ - if ((ret = ExportKeyState(ssl, buf + idx, sz - idx, - DTLS_EXPORT_VERSION, 0)) < 0) { - WOLFSSL_LEAVE("wolfSSL_dtls_export_internal", ret); - return ret; - } - c16toa((word16)ret, buf + idx - DTLS_EXPORT_LEN); idx += ret; - - /* export of cipher specs struct */ - c16toa((word16)DTLS_EXPORT_SPC_SZ, buf + idx); idx += DTLS_EXPORT_LEN; - if ((ret = ExportCipherSpecState(ssl, buf + idx, sz - idx, - DTLS_EXPORT_VERSION)) < 0) { - WOLFSSL_LEAVE("wolfSSL_dtls_export_internal", ret); - return ret; - } - idx += ret; - - /* export of dtls peer information */ - idx += DTLS_EXPORT_LEN; -#ifdef WOLFSSL_SESSION_EXPORT_NOPEER - ret = 0; /* not saving peer port/ip information */ -#else - if ((ret = ExportPeerInfo(ssl, buf + idx, sz - idx, - DTLS_EXPORT_VERSION)) < 0) { - WOLFSSL_LEAVE("wolfSSL_dtls_export_internal", ret); - return ret; - } -#endif - c16toa(ret, buf + idx - DTLS_EXPORT_LEN); - idx += ret; - - /* place total length of exported buffer minus 2 bytes protocol/version */ - c16toa((word16)(idx - DTLS_EXPORT_LEN), buf + DTLS_EXPORT_LEN); - - /* if compiled with debug options then print the version, protocol, size */ -#ifdef WOLFSSL_SESSION_EXPORT_DEBUG - { - char debug[256]; - XSNPRINTF(debug, sizeof(debug), "Exporting DTLS session\n" - "\tVersion : %d\n\tProtocol : %02X%01X\n\tLength of: %d\n\n" - , (int)DTLS_EXPORT_VERSION, buf[0], (buf[1] >> 4), idx - 2); - WOLFSSL_MSG(debug); - } -#endif /* WOLFSSL_SESSION_EXPORT_DEBUG */ - - WOLFSSL_LEAVE("wolfSSL_dtls_export_internal", idx); - return idx; -} - - -/* On success return amount of buffer consumed */ -int wolfSSL_dtls_import_state_internal(WOLFSSL* ssl, byte* buf, word32 sz) -{ - word32 idx = 0; - word16 length = 0; - int version; - int ret; - - WOLFSSL_ENTER("wolfSSL_dtls_import_state_internal"); - /* check at least enough room for protocol and length */ - if (sz < DTLS_EXPORT_LEN * 2 || ssl == NULL) { - WOLFSSL_LEAVE("wolfSSL_dtls_import_state_internal", BAD_FUNC_ARG); - return BAD_FUNC_ARG; - } - - if (buf[idx++] != (byte)DTLS_EXPORT_STATE_PRO || - (buf[idx] & 0xF0) != ((byte)DTLS_EXPORT_PRO & 0xF0)) { - WOLFSSL_MSG("Incorrect protocol"); - return BAD_FUNC_ARG; - } - version = buf[idx++] & 0x0F; - - ato16(buf + idx, &length); idx += DTLS_EXPORT_LEN; - if (length > sz - DTLS_EXPORT_LEN) { /* subtract 2 for protocol */ - WOLFSSL_MSG("Buffer size sanity check failed"); - return BUFFER_E; - } - -#ifdef WOLFSSL_SESSION_EXPORT_DEBUG - /* if compiled with debug options then print the version, protocol, size */ - { - char debug[256]; - XSNPRINTF(debug, sizeof(debug), "Importing DTLS session state\n" - "\tVersion : %d\n\tProtocol : %02X%01X\n\tLength of: %d\n\n" - , (int)version, buf[0], (buf[1] >> 4), length); - WOLFSSL_MSG(debug); - } -#endif /* WOLFSSL_SESSION_EXPORT_DEBUG */ - - /* perform sanity checks and extract Options information used */ - switch (version) { - case DTLS_EXPORT_VERSION: - break; - - default: - WOLFSSL_MSG("Bad export state version"); - return BAD_FUNC_ARG; - - } - - /* perform sanity checks and extract Keys struct */ - if (DTLS_EXPORT_LEN + idx > sz) { - WOLFSSL_MSG("Import Key struct error"); - return BUFFER_E; - } - ato16(buf + idx, &length); idx += DTLS_EXPORT_LEN; - if (length > DTLS_EXPORT_KEY_SZ || length + idx > sz) { - WOLFSSL_MSG("Import Key struct error"); - return BUFFER_E; - } - if ((ret = ImportKeyState(ssl, buf + idx, length, version)) < 0) { - WOLFSSL_MSG("Import Key struct error"); - WOLFSSL_LEAVE("wolfSSL_dtls_import_state_internal", ret); - return ret; - } - idx += ret; - - WOLFSSL_LEAVE("wolfSSL_dtls_import_state_internal", ret); - return ret; -} - - -/* On success return amount of buffer consumed */ -int wolfSSL_dtls_import_internal(WOLFSSL* ssl, byte* buf, word32 sz) -{ - word32 idx = 0; - word16 length = 0; - int version; - int ret; - int optSz; - - WOLFSSL_ENTER("wolfSSL_dtls_import_internal"); - /* check at least enough room for protocol and length */ - if (sz < DTLS_EXPORT_LEN * 2 || ssl == NULL) { - return BAD_FUNC_ARG; - } - - /* sanity check on protocol ID and size of buffer */ - if (buf[idx++] != (byte)DTLS_EXPORT_PRO || - (buf[idx] & 0xF0) != ((byte)DTLS_EXPORT_PRO & 0xF0)) { - /* don't increment on second idx to next get version */ - - /* check if importing state only */ - return wolfSSL_dtls_import_state_internal(ssl, buf, sz); - } - version = buf[idx++] & 0x0F; - - ato16(buf + idx, &length); idx += DTLS_EXPORT_LEN; - if (length > sz - DTLS_EXPORT_LEN) { /* subtract 2 for protocol */ - return BUFFER_E; - } - - /* if compiled with debug options then print the version, protocol, size */ -#ifdef WOLFSSL_SESSION_EXPORT_DEBUG - { - char debug[256]; - XSNPRINTF(debug, sizeof(debug), "Importing DTLS session\n" - "\tVersion : %d\n\tProtocol : %02X%01X\n\tLength of: %d\n\n" - , (int)version, buf[0], (buf[1] >> 4), length); - WOLFSSL_MSG(debug); - } -#endif /* WOLFSSL_SESSION_EXPORT_DEBUG */ - - /* perform sanity checks and extract Options information used */ - switch (version) { - case DTLS_EXPORT_VERSION: - optSz = DTLS_EXPORT_OPT_SZ; - break; - - case DTLS_EXPORT_VERSION_3: - WOLFSSL_MSG("Importing older version 3"); - optSz = DTLS_EXPORT_OPT_SZ_3; - break; - - default: - WOLFSSL_MSG("Bad export version"); - return BAD_FUNC_ARG; - - } - - if (DTLS_EXPORT_LEN + optSz + idx > sz) { - WOLFSSL_MSG("Import Options struct error"); - return BUFFER_E; - } - ato16(buf + idx, &length); idx += DTLS_EXPORT_LEN; - if (length != optSz) { - WOLFSSL_MSG("Import Options struct error"); - return BUFFER_E; - } - if ((ret = dtls_export_load(ssl, buf + idx, length, version)) < 0) { - WOLFSSL_MSG("Import Options struct error"); - return ret; - } - idx += length; - - /* perform sanity checks and extract Keys struct */ - if (DTLS_EXPORT_LEN + idx > sz) { - WOLFSSL_MSG("Import Key struct error"); - return BUFFER_E; - } - ato16(buf + idx, &length); idx += DTLS_EXPORT_LEN; - if (length > DTLS_EXPORT_KEY_SZ || length + idx > sz) { - WOLFSSL_MSG("Import Key struct error"); - return BUFFER_E; - } - if ((ret = ImportKeyState(ssl, buf + idx, length, version)) < 0) { - WOLFSSL_MSG("Import Key struct error"); - return ret; - } - idx += ret; - - /* perform sanity checks and extract CipherSpecs struct */ - if (DTLS_EXPORT_LEN + DTLS_EXPORT_SPC_SZ + idx > sz) { - WOLFSSL_MSG("Import CipherSpecs struct error"); - return BUFFER_E; - } - ato16(buf + idx, &length); idx += DTLS_EXPORT_LEN; - if ( length != DTLS_EXPORT_SPC_SZ) { - WOLFSSL_MSG("Import CipherSpecs struct error"); - return BUFFER_E; - } - if ((ret = ImportCipherSpecState(ssl, buf + idx, length, version)) < 0) { - WOLFSSL_MSG("Import CipherSpecs struct error"); - return ret; - } - idx += ret; - - /* perform sanity checks and extract DTLS peer info */ - if (DTLS_EXPORT_LEN + idx > sz) { - WOLFSSL_MSG("Import DTLS peer info error"); - return BUFFER_E; - } - ato16(buf + idx, &length); idx += DTLS_EXPORT_LEN; - if (idx + length > sz) { - WOLFSSL_MSG("Import DTLS peer info error"); - return BUFFER_E; - } - if ((ret = ImportPeerInfo(ssl, buf + idx, length, version)) < 0) { - WOLFSSL_MSG("Import Peer Addr error"); - return ret; - } - idx += ret; - - SetKeysSide(ssl, ENCRYPT_AND_DECRYPT_SIDE); - - /* set hmac function to use when verifying */ - if (ssl->options.tls == 1 || ssl->options.tls1_1 == 1 || - ssl->options.dtls == 1) { - ssl->hmac = TLS_hmac; - } - - /* make sure is a valid suite used */ - if (wolfSSL_get_cipher(ssl) == NULL) { - WOLFSSL_MSG("Can not match cipher suite imported"); - return MATCH_SUITE_ERROR; - } - - /* do not allow stream ciphers with DTLS, except for NULL cipher */ - if (ssl->specs.cipher_type == stream && - ssl->specs.bulk_cipher_algorithm != wolfssl_cipher_null) { - WOLFSSL_MSG("Can not import stream ciphers for DTLS"); - return SANITY_CIPHER_E; - } - - return idx; -} -#endif /* WOLFSSL_DTLS */ -#endif /* WOLFSSL_SESSION_EXPORT */ - - -void InitSSL_Method(WOLFSSL_METHOD* method, ProtocolVersion pv) -{ - method->version = pv; - method->side = WOLFSSL_CLIENT_END; - method->downgrade = 0; -} - -#if defined(OPENSSL_EXTRA) || defined(WOLFSSL_EITHER_SIDE) -int InitSSL_Side(WOLFSSL* ssl, word16 side) -{ - if (ssl == NULL) - return BAD_FUNC_ARG; - - /* set side */ - ssl->options.side = side; - - /* reset options that are side specific */ -#ifdef HAVE_NTRU - if (ssl->options.side == WOLFSSL_CLIENT_END) { - ssl->options.haveNTRU = 1; /* always on client side */ - /* server can turn on by loading key */ - } -#endif -#ifdef HAVE_ECC - if (ssl->options.side == WOLFSSL_CLIENT_END) { - ssl->options.haveECDSAsig = 1; /* always on client side */ - ssl->options.haveECC = 1; /* server turns on with ECC key cert */ - ssl->options.haveStaticECC = 1; /* server can turn on by loading key */ - } -#elif defined(HAVE_ED25519) || defined(HAVE_ED448) - if (ssl->options.side == WOLFSSL_CLIENT_END) { - ssl->options.haveECDSAsig = 1; /* always on client side */ - ssl->options.haveECC = 1; /* server turns on with ECC key cert */ - } -#endif - -#if defined(HAVE_EXTENDED_MASTER) && !defined(NO_WOLFSSL_CLIENT) - if (ssl->options.side == WOLFSSL_CLIENT_END) { - if ((ssl->ctx->method->version.major == SSLv3_MAJOR) && - (ssl->ctx->method->version.minor >= TLSv1_MINOR)) { - ssl->options.haveEMS = 1; - } - #ifdef WOLFSSL_DTLS - if (ssl->ctx->method->version.major == DTLS_MAJOR) - ssl->options.haveEMS = 1; - #endif /* WOLFSSL_DTLS */ - } -#endif /* HAVE_EXTENDED_MASTER && !NO_WOLFSSL_CLIENT */ - -#if defined(WOLFSSL_DTLS) && !defined(NO_WOLFSSL_SERVER) - if (ssl->options.dtls && ssl->options.side == WOLFSSL_SERVER_END) { - int ret; - ret = wolfSSL_DTLS_SetCookieSecret(ssl, NULL, 0); - if (ret != 0) { - WOLFSSL_MSG("DTLS Cookie Secret error"); - return ret; - } - } -#endif /* WOLFSSL_DTLS && !NO_WOLFSSL_SERVER */ - - return InitSSL_Suites(ssl); -} -#endif /* OPENSSL_EXTRA || WOLFSSL_EITHER_SIDE */ - -/* Initialize SSL context, return 0 on success */ -int InitSSL_Ctx(WOLFSSL_CTX* ctx, WOLFSSL_METHOD* method, void* heap) -{ - int ret = 0; - - XMEMSET(ctx, 0, sizeof(WOLFSSL_CTX)); - - ctx->method = method; - ctx->refCount = 1; /* so either CTX_free or SSL_free can release */ - ctx->heap = ctx; /* defaults to self */ - ctx->timeout = WOLFSSL_SESSION_TIMEOUT; - ctx->minDowngrade = WOLFSSL_MIN_DOWNGRADE; /* current default: TLSv1_MINOR */ - - if (wc_InitMutex(&ctx->countMutex) < 0) { - WOLFSSL_MSG("Mutex error on CTX init"); - ctx->err = CTX_INIT_MUTEX_E; - return BAD_MUTEX_E; - } - -#ifndef NO_DH - ctx->minDhKeySz = MIN_DHKEY_SZ; - ctx->maxDhKeySz = MAX_DHKEY_SZ; -#endif -#ifndef NO_RSA - ctx->minRsaKeySz = MIN_RSAKEY_SZ; -#endif -#ifdef HAVE_ECC - ctx->minEccKeySz = MIN_ECCKEY_SZ; - ctx->eccTempKeySz = ECDHE_SIZE; -#endif -#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - ctx->verifyDepth = MAX_CHAIN_DEPTH; -#endif -#ifdef OPENSSL_EXTRA - ctx->cbioFlag = WOLFSSL_CBIO_NONE; -#endif - -#ifndef WOLFSSL_USER_IO - #ifdef MICRIUM - ctx->CBIORecv = MicriumReceive; - ctx->CBIOSend = MicriumSend; - #ifdef WOLFSSL_DTLS - if (method->version.major == DTLS_MAJOR) { - ctx->CBIORecv = MicriumReceiveFrom; - ctx->CBIOSend = MicriumSendTo; - } - #ifdef WOLFSSL_SESSION_EXPORT - #error Micrium port does not support DTLS session export yet - #endif - #endif - #elif defined WOLFSSL_UIP - ctx->CBIORecv = uIPReceive; - ctx->CBIOSend = uIPSend; - #ifdef WOLFSSL_DTLS - if (method->version.major == DTLS_MAJOR) { - ctx->CBIOSendTo = uIPSendTo; - ctx->CBIORecvFrom = uIPRecvFrom; - } - #endif - #else - ctx->CBIORecv = EmbedReceive; - ctx->CBIOSend = EmbedSend; - #ifdef WOLFSSL_DTLS - if (method->version.major == DTLS_MAJOR) { - ctx->CBIORecv = EmbedReceiveFrom; - ctx->CBIOSend = EmbedSendTo; - } - #ifdef WOLFSSL_SESSION_EXPORT - ctx->CBGetPeer = EmbedGetPeer; - ctx->CBSetPeer = EmbedSetPeer; - #endif - #endif - #endif /* MICRIUM */ -#endif /* WOLFSSL_USER_IO */ - -#ifdef HAVE_NETX - ctx->CBIORecv = NetX_Receive; - ctx->CBIOSend = NetX_Send; -#elif defined(WOLFSSL_APACHE_MYNEWT) && !defined(WOLFSSL_LWIP) - ctx->CBIORecv = Mynewt_Receive; - ctx->CBIOSend = Mynewt_Send; -#elif defined(WOLFSSL_GNRC) - ctx->CBIORecv = GNRC_ReceiveFrom; - ctx->CBIOSend = GNRC_SendTo; -#endif - -#ifdef HAVE_NTRU - if (method->side == WOLFSSL_CLIENT_END) - ctx->haveNTRU = 1; /* always on client side */ - /* server can turn on by loading key */ -#endif -#ifdef HAVE_ECC - if (method->side == WOLFSSL_CLIENT_END) { - ctx->haveECDSAsig = 1; /* always on client side */ - ctx->haveECC = 1; /* server turns on with ECC key cert */ - ctx->haveStaticECC = 1; /* server can turn on by loading key */ - } -#elif defined(HAVE_ED25519) || defined(HAVE_ED448) - if (method->side == WOLFSSL_CLIENT_END) { - ctx->haveECDSAsig = 1; /* always on client side */ - ctx->haveECC = 1; /* server turns on with ECC key cert */ - } -#endif - - ctx->devId = INVALID_DEVID; - -#if defined(WOLFSSL_DTLS) - #ifdef WOLFSSL_SCTP - ctx->dtlsMtuSz = MAX_RECORD_SIZE; - #elif defined(WOLFSSL_DTLS_MTU) - ctx->dtlsMtuSz = MAX_MTU; - #endif -#endif - -#ifndef NO_CERTS - ctx->cm = wolfSSL_CertManagerNew_ex(heap); - if (ctx->cm == NULL) { - WOLFSSL_MSG("Bad Cert Manager New"); - return BAD_CERT_MANAGER_ERROR; - } - #ifdef OPENSSL_EXTRA - /* setup WOLFSSL_X509_STORE */ - ctx->x509_store.cm = ctx->cm; - #endif -#endif - -#if defined(HAVE_EXTENDED_MASTER) && !defined(NO_WOLFSSL_CLIENT) - if (method->side == WOLFSSL_CLIENT_END) { - if ((method->version.major == SSLv3_MAJOR) && - (method->version.minor >= TLSv1_MINOR)) { - - ctx->haveEMS = 1; - } -#ifdef WOLFSSL_DTLS - if (method->version.major == DTLS_MAJOR) - ctx->haveEMS = 1; -#endif /* WOLFSSL_DTLS */ - } -#endif /* HAVE_EXTENDED_MASTER && !NO_WOLFSSL_CLIENT */ - -#if defined(HAVE_SESSION_TICKET) && !defined(NO_WOLFSSL_SERVER) - ctx->ticketHint = SESSION_TICKET_HINT_DEFAULT; -#endif - -#ifdef HAVE_WOLF_EVENT - ret = wolfEventQueue_Init(&ctx->event_queue); -#endif /* HAVE_WOLF_EVENT */ - -#ifdef WOLFSSL_EARLY_DATA - ctx->maxEarlyDataSz = MAX_EARLY_DATA_SZ; -#endif - - ctx->heap = heap; /* wolfSSL_CTX_load_static_memory sets */ - ctx->verifyDepth = MAX_CHAIN_DEPTH; - - return ret; -} - - -/* In case contexts are held in array and don't want to free actual ctx */ -void SSL_CtxResourceFree(WOLFSSL_CTX* ctx) -{ -#if defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2) && \ - defined(HAVE_TLS_EXTENSIONS) && !defined(NO_WOLFSSL_SERVER) - int i; -#endif - -#ifdef HAVE_WOLF_EVENT - wolfEventQueue_Free(&ctx->event_queue); -#endif /* HAVE_WOLF_EVENT */ - -#ifdef WOLFSSL_STATIC_MEMORY - if (ctx->onHeap == 1) { - XFREE(ctx->method, ctx->heap, DYNAMIC_TYPE_METHOD); - } - else { - XFREE(ctx->method, NULL, DYNAMIC_TYPE_METHOD); - } -#else - XFREE(ctx->method, ctx->heap, DYNAMIC_TYPE_METHOD); -#endif - ctx->method = NULL; - if (ctx->suites) { - XFREE(ctx->suites, ctx->heap, DYNAMIC_TYPE_SUITES); - ctx->suites = NULL; - } - -#ifndef NO_DH - XFREE(ctx->serverDH_G.buffer, ctx->heap, DYNAMIC_TYPE_PUBLIC_KEY); - ctx->serverDH_G.buffer = NULL; - XFREE(ctx->serverDH_P.buffer, ctx->heap, DYNAMIC_TYPE_PUBLIC_KEY); - ctx->serverDH_P.buffer = NULL; -#endif /* !NO_DH */ - -#ifdef SINGLE_THREADED - if (ctx->rng) { - wc_FreeRng(ctx->rng); - XFREE(ctx->rng, ctx->heap, DYNAMIC_TYPE_RNG); - ctx->rng = NULL; - } -#endif /* SINGLE_THREADED */ - -#ifndef NO_CERTS - FreeDer(&ctx->privateKey); - FreeDer(&ctx->certificate); - #ifdef KEEP_OUR_CERT - if (ctx->ourCert && ctx->ownOurCert) { - FreeX509(ctx->ourCert); - XFREE(ctx->ourCert, ctx->heap, DYNAMIC_TYPE_X509); - ctx->ourCert = NULL; - } - #endif /* KEEP_OUR_CERT */ - FreeDer(&ctx->certChain); - wolfSSL_CertManagerFree(ctx->cm); - ctx->cm = NULL; - #ifdef OPENSSL_EXTRA - /* ctx->cm was free'd so cm of x509 store should now be NULL */ - if (ctx->x509_store_pt != NULL) { - ctx->x509_store_pt->cm = NULL; - } - wolfSSL_X509_STORE_free(ctx->x509_store_pt); - while (ctx->ca_names != NULL) { - WOLFSSL_STACK *next = ctx->ca_names->next; - wolfSSL_X509_NAME_free(ctx->ca_names->data.name); - XFREE(ctx->ca_names, NULL, DYNAMIC_TYPE_OPENSSL); - ctx->ca_names = next; - } - #endif - #if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY) - while (ctx->x509Chain != NULL) { - WOLFSSL_STACK *next = ctx->x509Chain->next; - wolfSSL_X509_free(ctx->x509Chain->data.x509); - XFREE(ctx->x509Chain, NULL, DYNAMIC_TYPE_OPENSSL); - ctx->x509Chain = next; - } - #endif -#endif /* !NO_CERTS */ - -#ifdef HAVE_TLS_EXTENSIONS - TLSX_FreeAll(ctx->extensions, ctx->heap); - -#ifndef NO_WOLFSSL_SERVER -#if defined(HAVE_CERTIFICATE_STATUS_REQUEST) \ - || defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2) - if (ctx->certOcspRequest) { - FreeOcspRequest(ctx->certOcspRequest); - XFREE(ctx->certOcspRequest, ctx->heap, DYNAMIC_TYPE_OCSP_REQUEST); - } -#endif - -#ifdef HAVE_CERTIFICATE_STATUS_REQUEST_V2 - for (i = 0; i < MAX_CHAIN_DEPTH; i++) { - if (ctx->chainOcspRequest[i]) { - FreeOcspRequest(ctx->chainOcspRequest[i]); - XFREE(ctx->chainOcspRequest[i], ctx->heap, DYNAMIC_TYPE_OCSP_REQUEST); - ctx->chainOcspRequest[i] = NULL; - } - } -#endif /* HAVE_CERTIFICATE_STATUS_REQUEST_V2 */ -#endif /* !NO_WOLFSSL_SERVER */ - -#endif /* HAVE_TLS_EXTENSIONS */ -#ifdef OPENSSL_EXTRA - if(ctx->alpn_cli_protos) { - XFREE((void *)ctx->alpn_cli_protos, NULL, DYNAMIC_TYPE_OPENSSL); - ctx->alpn_cli_protos = NULL; - } -#endif -#ifdef WOLFSSL_STATIC_MEMORY - if (ctx->heap != NULL) { -#ifdef WOLFSSL_HEAP_TEST - /* avoid dereferencing a test value */ - if (ctx->heap != (void*)WOLFSSL_HEAP_TEST) -#endif - { - WOLFSSL_HEAP_HINT* hint = (WOLFSSL_HEAP_HINT*)(ctx->heap); - wc_FreeMutex(&((WOLFSSL_HEAP*)(hint->memory))->memory_mutex); - } - } -#endif /* WOLFSSL_STATIC_MEMORY */ -} - - -void FreeSSL_Ctx(WOLFSSL_CTX* ctx) -{ - int refCount; - - /* decrement CTX reference count */ - if ((refCount = SSL_CTX_RefCount(ctx, -1)) < 0) { - /* check error state, if mutex error code then mutex init failed but - * CTX was still malloc'd */ - if (ctx->err == CTX_INIT_MUTEX_E) { - SSL_CtxResourceFree(ctx); - XFREE(ctx, ctx->heap, DYNAMIC_TYPE_CTX); - } - return; - } - - if (refCount == 0) { - void* heap = ctx->heap; - WOLFSSL_MSG("CTX ref count down to 0, doing full free"); - SSL_CtxResourceFree(ctx); - wc_FreeMutex(&ctx->countMutex); -#ifdef WOLFSSL_STATIC_MEMORY - if (ctx->onHeap == 0) { - heap = NULL; - } -#endif - XFREE(ctx, heap, DYNAMIC_TYPE_CTX); - (void)heap; /* not used in some builds */ - } - else { - (void)ctx; - WOLFSSL_MSG("CTX ref count not 0 yet, no free"); - } -} - - -/* Set cipher pointers to null */ -void InitCiphers(WOLFSSL* ssl) -{ -#ifdef BUILD_ARC4 - ssl->encrypt.arc4 = NULL; - ssl->decrypt.arc4 = NULL; -#endif -#ifdef BUILD_DES3 - ssl->encrypt.des3 = NULL; - ssl->decrypt.des3 = NULL; -#endif -#ifdef BUILD_AES - ssl->encrypt.aes = NULL; - ssl->decrypt.aes = NULL; -#endif -#ifdef HAVE_CAMELLIA - ssl->encrypt.cam = NULL; - ssl->decrypt.cam = NULL; -#endif -#ifdef HAVE_HC128 - ssl->encrypt.hc128 = NULL; - ssl->decrypt.hc128 = NULL; -#endif -#ifdef BUILD_RABBIT - ssl->encrypt.rabbit = NULL; - ssl->decrypt.rabbit = NULL; -#endif -#ifdef HAVE_CHACHA - ssl->encrypt.chacha = NULL; - ssl->decrypt.chacha = NULL; -#endif -#if defined(HAVE_POLY1305) && defined(HAVE_ONE_TIME_AUTH) - ssl->auth.poly1305 = NULL; -#endif - ssl->encrypt.setup = 0; - ssl->decrypt.setup = 0; -#ifdef HAVE_ONE_TIME_AUTH - ssl->auth.setup = 0; -#endif -#ifdef HAVE_IDEA - ssl->encrypt.idea = NULL; - ssl->decrypt.idea = NULL; -#endif -} - - -/* Free ciphers */ -void FreeCiphers(WOLFSSL* ssl) -{ - (void)ssl; -#ifdef BUILD_ARC4 - wc_Arc4Free(ssl->encrypt.arc4); - wc_Arc4Free(ssl->decrypt.arc4); - XFREE(ssl->encrypt.arc4, ssl->heap, DYNAMIC_TYPE_CIPHER); - XFREE(ssl->decrypt.arc4, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -#ifdef BUILD_DES3 - wc_Des3Free(ssl->encrypt.des3); - wc_Des3Free(ssl->decrypt.des3); - XFREE(ssl->encrypt.des3, ssl->heap, DYNAMIC_TYPE_CIPHER); - XFREE(ssl->decrypt.des3, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -#if defined(BUILD_AES) || defined(BUILD_AESGCM) /* See: InitKeys() in keys.c - * on addition of BUILD_AESGCM - * check (enc->aes, dec->aes) */ - wc_AesFree(ssl->encrypt.aes); - wc_AesFree(ssl->decrypt.aes); - #if (defined(BUILD_AESGCM) || defined(HAVE_AESCCM)) && \ - !defined(WOLFSSL_NO_TLS12) - XFREE(ssl->decrypt.additional, ssl->heap, DYNAMIC_TYPE_AES_BUFFER); - XFREE(ssl->encrypt.additional, ssl->heap, DYNAMIC_TYPE_AES_BUFFER); - #endif - XFREE(ssl->encrypt.aes, ssl->heap, DYNAMIC_TYPE_CIPHER); - XFREE(ssl->decrypt.aes, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -#ifdef CIPHER_NONCE - XFREE(ssl->decrypt.nonce, ssl->heap, DYNAMIC_TYPE_AES_BUFFER); - XFREE(ssl->encrypt.nonce, ssl->heap, DYNAMIC_TYPE_AES_BUFFER); -#endif -#ifdef HAVE_CAMELLIA - XFREE(ssl->encrypt.cam, ssl->heap, DYNAMIC_TYPE_CIPHER); - XFREE(ssl->decrypt.cam, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -#ifdef HAVE_HC128 - XFREE(ssl->encrypt.hc128, ssl->heap, DYNAMIC_TYPE_CIPHER); - XFREE(ssl->decrypt.hc128, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -#ifdef BUILD_RABBIT - XFREE(ssl->encrypt.rabbit, ssl->heap, DYNAMIC_TYPE_CIPHER); - XFREE(ssl->decrypt.rabbit, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -#ifdef HAVE_CHACHA - XFREE(ssl->encrypt.chacha, ssl->heap, DYNAMIC_TYPE_CIPHER); - XFREE(ssl->decrypt.chacha, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -#if defined(HAVE_POLY1305) && defined(HAVE_ONE_TIME_AUTH) - XFREE(ssl->auth.poly1305, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -#ifdef HAVE_IDEA - XFREE(ssl->encrypt.idea, ssl->heap, DYNAMIC_TYPE_CIPHER); - XFREE(ssl->decrypt.idea, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -#if defined(WOLFSSL_TLS13) && defined(HAVE_NULL_CIPHER) - wc_HmacFree(ssl->encrypt.hmac); - wc_HmacFree(ssl->decrypt.hmac); - XFREE(ssl->encrypt.hmac, ssl->heap, DYNAMIC_TYPE_CIPHER); - XFREE(ssl->decrypt.hmac, ssl->heap, DYNAMIC_TYPE_CIPHER); -#endif -} - - -void InitCipherSpecs(CipherSpecs* cs) -{ - XMEMSET(cs, 0, sizeof(CipherSpecs)); - - cs->bulk_cipher_algorithm = INVALID_BYTE; - cs->cipher_type = INVALID_BYTE; - cs->mac_algorithm = INVALID_BYTE; - cs->kea = INVALID_BYTE; - cs->sig_algo = INVALID_BYTE; -} - -#if defined(USE_ECDSA_KEYSZ_HASH_ALGO) || (defined(WOLFSSL_TLS13) && \ - defined(HAVE_ECC)) -static int GetMacDigestSize(byte macAlgo) -{ - switch (macAlgo) { - #ifndef NO_SHA - case sha_mac: - return WC_SHA_DIGEST_SIZE; - #endif - #ifndef NO_SHA256 - case sha256_mac: - return WC_SHA256_DIGEST_SIZE; - #endif - #ifdef WOLFSSL_SHA384 - case sha384_mac: - return WC_SHA384_DIGEST_SIZE; - #endif - #ifdef WOLFSSL_SHA512 - case sha512_mac: - return WC_SHA512_DIGEST_SIZE; - #endif - default: - break; - } - return NOT_COMPILED_IN; -} -#endif /* USE_ECDSA_KEYSZ_HASH_ALGO */ - -static WC_INLINE void AddSuiteHashSigAlgo(Suites* suites, byte macAlgo, byte sigAlgo, - int keySz, word16* inOutIdx) -{ - int addSigAlgo = 1; - -#ifdef USE_ECDSA_KEYSZ_HASH_ALGO - if (sigAlgo == ecc_dsa_sa_algo) { - int digestSz = GetMacDigestSize(macAlgo); - /* do not add sig/algos with digest size larger than key size */ - if (digestSz <= 0 || (keySz > 0 && digestSz > keySz)) { - addSigAlgo = 0; - } - } -#else - (void)keySz; -#endif /* USE_ECDSA_KEYSZ_HASH_ALGO */ - - if (addSigAlgo) { -#ifdef WC_RSA_PSS - if (sigAlgo == rsa_pss_sa_algo) { - /* RSA PSS is sig then mac */ - suites->hashSigAlgo[*inOutIdx] = sigAlgo; - *inOutIdx += 1; - suites->hashSigAlgo[*inOutIdx] = macAlgo; - *inOutIdx += 1; - #ifdef WOLFSSL_TLS13 - /* Add the certificate algorithm as well */ - suites->hashSigAlgo[*inOutIdx] = sigAlgo; - *inOutIdx += 1; - suites->hashSigAlgo[*inOutIdx] = PSS_RSAE_TO_PSS_PSS(macAlgo); - *inOutIdx += 1; - #endif - } - else -#endif - { - suites->hashSigAlgo[*inOutIdx] = macAlgo; - *inOutIdx += 1; - suites->hashSigAlgo[*inOutIdx] = sigAlgo; - *inOutIdx += 1; - } - } -} - -void InitSuitesHashSigAlgo(Suites* suites, int haveECDSAsig, int haveRSAsig, - int haveAnon, int tls1_2, int keySz) -{ - word16 idx = 0; - - (void)tls1_2; - (void)keySz; - -#if defined(HAVE_ECC) || defined(HAVE_ED25519) || defined(HAVE_ED448) - if (haveECDSAsig) { -#ifdef HAVE_ECC - #ifdef WOLFSSL_SHA512 - AddSuiteHashSigAlgo(suites, sha512_mac, ecc_dsa_sa_algo, keySz, &idx); - #endif - #ifdef WOLFSSL_SHA384 - AddSuiteHashSigAlgo(suites, sha384_mac, ecc_dsa_sa_algo, keySz, &idx); - #endif - #ifndef NO_SHA256 - AddSuiteHashSigAlgo(suites, sha256_mac, ecc_dsa_sa_algo, keySz, &idx); - #endif - #if !defined(NO_SHA) && (!defined(NO_OLD_TLS) || \ - defined(WOLFSSL_ALLOW_TLS_SHA1)) - AddSuiteHashSigAlgo(suites, sha_mac, ecc_dsa_sa_algo, keySz, &idx); - #endif -#endif - #ifdef HAVE_ED25519 - AddSuiteHashSigAlgo(suites, ED25519_SA_MAJOR, ED25519_SA_MINOR, keySz, - &idx); - #endif - #ifdef HAVE_ED448 - AddSuiteHashSigAlgo(suites, ED448_SA_MAJOR, ED448_SA_MINOR, keySz, - &idx); - #endif - } -#endif /* HAVE_ECC || HAVE_ED25519 || defined(HAVE_ED448 */ - - if (haveRSAsig) { - #ifdef WC_RSA_PSS - if (tls1_2) { - #ifdef WOLFSSL_SHA512 - AddSuiteHashSigAlgo(suites, sha512_mac, rsa_pss_sa_algo, keySz, - &idx); - #endif - #ifdef WOLFSSL_SHA384 - AddSuiteHashSigAlgo(suites, sha384_mac, rsa_pss_sa_algo, keySz, - &idx); - #endif - #ifndef NO_SHA256 - AddSuiteHashSigAlgo(suites, sha256_mac, rsa_pss_sa_algo, keySz, - &idx); - #endif - } - #endif - #ifdef WOLFSSL_SHA512 - AddSuiteHashSigAlgo(suites, sha512_mac, rsa_sa_algo, keySz, &idx); - #endif - #ifdef WOLFSSL_SHA384 - AddSuiteHashSigAlgo(suites, sha384_mac, rsa_sa_algo, keySz, &idx); - #endif - #ifndef NO_SHA256 - AddSuiteHashSigAlgo(suites, sha256_mac, rsa_sa_algo, keySz, &idx); - #endif - #ifdef WOLFSSL_SHA224 - AddSuiteHashSigAlgo(suites, sha224_mac, rsa_sa_algo, keySz, &idx); - #endif - #if !defined(NO_SHA) && (!defined(NO_OLD_TLS) || \ - defined(WOLFSSL_ALLOW_TLS_SHA1)) - AddSuiteHashSigAlgo(suites, sha_mac, rsa_sa_algo, keySz, &idx); - #endif - } - -#ifdef HAVE_ANON - if (haveAnon) { - AddSuiteHashSigAlgo(suites, sha_mac, anonymous_sa_algo, keySz, &idx); - } -#endif - - (void)haveAnon; - (void)haveECDSAsig; - suites->hashSigAlgoSz = idx; -} - -void InitSuites(Suites* suites, ProtocolVersion pv, int keySz, word16 haveRSA, - word16 havePSK, word16 haveDH, word16 haveNTRU, - word16 haveECDSAsig, word16 haveECC, - word16 haveStaticECC, int side) -{ - word16 idx = 0; - int tls = pv.major == SSLv3_MAJOR && pv.minor >= TLSv1_MINOR; - int tls1_2 = pv.major == SSLv3_MAJOR && pv.minor >= TLSv1_2_MINOR; -#ifdef WOLFSSL_TLS13 - int tls1_3 = IsAtLeastTLSv1_3(pv); -#endif - int dtls = 0; - int haveRSAsig = 1; - - (void)tls; /* shut up compiler */ - (void)tls1_2; - (void)dtls; - (void)haveDH; - (void)havePSK; - (void)haveNTRU; - (void)haveStaticECC; - (void)haveECC; - (void)side; - (void)haveRSA; /* some builds won't read */ - (void)haveRSAsig; /* non ecc builds won't read */ - - if (suites == NULL) { - WOLFSSL_MSG("InitSuites pointer error"); - return; - } - - if (suites->setSuites) - return; /* trust user settings, don't override */ - -#ifdef WOLFSSL_TLS13 -#ifdef BUILD_TLS_AES_128_GCM_SHA256 - if (tls1_3) { - suites->suites[idx++] = TLS13_BYTE; - suites->suites[idx++] = TLS_AES_128_GCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_AES_256_GCM_SHA384 - if (tls1_3) { - suites->suites[idx++] = TLS13_BYTE; - suites->suites[idx++] = TLS_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_CHACHA20_POLY1305_SHA256 - if (tls1_3) { - suites->suites[idx++] = TLS13_BYTE; - suites->suites[idx++] = TLS_CHACHA20_POLY1305_SHA256; - } -#endif - -#ifdef BUILD_TLS_AES_128_CCM_SHA256 - if (tls1_3) { - suites->suites[idx++] = TLS13_BYTE; - suites->suites[idx++] = TLS_AES_128_CCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_AES_128_CCM_8_SHA256 - if (tls1_3) { - suites->suites[idx++] = TLS13_BYTE; - suites->suites[idx++] = TLS_AES_128_CCM_8_SHA256; - } -#endif - -#ifdef HAVE_NULL_CIPHER - #ifdef BUILD_TLS_SHA256_SHA256 - if (tls1_3) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_SHA256_SHA256; - } - #endif - - #ifdef BUILD_TLS_SHA384_SHA384 - if (tls1_3) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_SHA384_SHA384; - } - #endif -#endif -#endif /* WOLFSSL_TLS13 */ - -#ifndef WOLFSSL_NO_TLS12 - -#if !defined(NO_WOLFSSL_SERVER) && !defined(NO_RSA) - if (side == WOLFSSL_SERVER_END && haveStaticECC) { - haveRSA = 0; /* can't do RSA with ECDSA key */ - } - - if (side == WOLFSSL_SERVER_END && haveECDSAsig) { - haveRSAsig = 0; /* can't have RSA sig if signed by ECDSA */ - } -#endif /* !NO_WOLFSSL_SERVER */ - -#ifdef WOLFSSL_DTLS - if (pv.major == DTLS_MAJOR) { - dtls = 1; - tls = 1; - /* May be dead assignments dependent upon configuration */ - (void) dtls; - (void) tls; - tls1_2 = pv.minor <= DTLSv1_2_MINOR; - } -#endif - -#ifdef HAVE_RENEGOTIATION_INDICATION - if (side == WOLFSSL_CLIENT_END) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_EMPTY_RENEGOTIATION_INFO_SCSV; - } -#endif - -#ifdef BUILD_TLS_QSH - if (tls) { - suites->suites[idx++] = QSH_BYTE; - suites->suites[idx++] = TLS_QSH; - } -#endif - -#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA - if (tls && haveNTRU && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_NTRU_RSA_WITH_AES_256_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA - if (tls && haveNTRU && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_NTRU_RSA_WITH_AES_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA - if (!dtls && tls && haveNTRU && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_NTRU_RSA_WITH_RC4_128_SHA; - } -#endif - -#ifdef BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA - if (tls && haveNTRU && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 - if (tls1_2 && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 - if (tls1_2 && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 - if (tls1_2 && haveDH && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 - if (tls1_2 && haveDH && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_128_GCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_AES_128_GCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 - if (tls1_2 && haveECC && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 - if (tls1_2 && haveECC && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 - if (tls1_2 && haveRSAsig && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 - if (tls1_2 && haveRSAsig && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 - if (tls1_2 && haveDH && havePSK) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_PSK_WITH_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_DH_anon_WITH_AES_128_CBC_SHA - if (tls1_2 && haveDH) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DH_anon_WITH_AES_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_DH_anon_WITH_AES_256_GCM_SHA384 - if (tls1_2 && haveDH) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DH_anon_WITH_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 - if (tls1_2 && haveDH && havePSK) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_PSK_WITH_AES_128_GCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_GCM_SHA384 - if (tls1_2 && havePSK) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_256_GCM_SHA384; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_GCM_SHA256 - if (tls1_2 && havePSK) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_128_GCM_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 - if (tls1_2 && haveECC) { - suites->suites[idx++] = CHACHA_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = CHACHA_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = CHACHA_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256; - } -#endif - -/* Place as higher priority for MYSQL */ -#if defined(WOLFSSL_MYSQL_COMPATIBLE) -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA - if (tls && haveDH && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_CBC_SHA; - } -#endif -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 - if (tls1_2 && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 - if (tls1_2 && haveRSAsig && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 - if (tls1_2 && haveECC && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 - if (tls1_2 && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384; - } -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 - if (tls1_2 && haveRSAsig && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384; - } -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 - if (tls1_2 && haveECC && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA - if (tls && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA - if (tls && haveECC && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA - if (tls && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA - if (tls && haveECC && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA - if (!dtls && tls && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_RC4_128_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA - if (!dtls && tls && haveECC && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_RC4_128_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA - if (tls && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA - if (tls && haveECC && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA - if (tls && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA - if (tls && haveRSAsig && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_256_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA - if (tls && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA - if (tls && haveRSAsig && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_RSA_WITH_AES_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_RC4_128_SHA - if (!dtls && tls && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_RC4_128_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA - if (!dtls && tls && haveRSAsig && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_RSA_WITH_RC4_128_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA - if (tls && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA - if (tls && haveRSAsig && haveStaticECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM - if (tls1_2 && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CCM; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 - if (tls1_2 && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 - if (tls1_2 && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_AES_128_CCM_8; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_AES_256_CCM_8; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveDH && haveRSA) -#else - if (tls && haveDH && haveRSA) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveDH && haveRSA) -#else - if (tls && haveDH && haveRSA) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_128_CBC_SHA256; - } -#endif - -/* Place as higher priority for MYSQL testing */ -#if !defined(WOLFSSL_MYSQL_COMPATIBLE) -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA - if (tls && haveDH && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_256_CBC_SHA; - } -#endif -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA - if (tls && haveDH && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_AES_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA - if (tls && haveDH && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveRSA) -#else - if (tls && haveRSA) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_AES_256_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveRSA) -#else - if (tls && haveRSA) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_AES_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA - if (tls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_AES_256_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA - if (tls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_AES_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_CHACHA20_OLD_POLY1305_SHA256 - if (tls1_2 && haveECC) { - suites->suites[idx++] = CHACHA_BYTE; - suites->suites[idx++] = - TLS_ECDHE_ECDSA_WITH_CHACHA20_OLD_POLY1305_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = CHACHA_BYTE; - suites->suites[idx++] = TLS_ECDHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256 - if (tls1_2 && haveRSA) { - suites->suites[idx++] = CHACHA_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_NULL_SHA - if (tls && haveECC) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_ECDSA_WITH_NULL_SHA; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_NULL_MD5 - if (tls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_NULL_MD5; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_NULL_SHA - if (tls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_NULL_SHA; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_NULL_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveRSA) -#else - if (tls && haveRSA) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_NULL_SHA256; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA - if (tls && havePSK) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_256_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveDH && havePSK) -#else - if (tls && haveDH && havePSK) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_PSK_WITH_AES_256_CBC_SHA384; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA384 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && havePSK) -#else - if (tls && havePSK) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_256_CBC_SHA384; - } -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveDH && havePSK) -#else - if (tls && haveDH && havePSK) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_PSK_WITH_AES_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && havePSK) -#else - if (tls1 && havePSK) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA - if (tls && havePSK) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_128_CCM - if (tls && haveDH && havePSK) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_DHE_PSK_WITH_AES_128_CCM; - } -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_256_CCM - if (tls && haveDH && havePSK) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_DHE_PSK_WITH_AES_256_CCM; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && havePSK) -#else - if (tls && havePSK) -#endif - { - suites->suites[idx++] = CHACHA_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_CHACHA20_POLY1305_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && havePSK) -#else - if (tls && havePSK) -#endif - { - suites->suites[idx++] = CHACHA_BYTE; - suites->suites[idx++] = TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256; - } -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && havePSK) -#else - if (tls && havePSK) -#endif - { - suites->suites[idx++] = CHACHA_BYTE; - suites->suites[idx++] = TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256; - } -#endif - -#ifdef BUILD_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && havePSK) -#else - if (tls && havePSK) -#endif - { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM - if (tls && havePSK) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_128_CCM; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM - if (tls && havePSK) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_256_CCM; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM_8 - if (tls && havePSK) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_128_CCM_8; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM_8 - if (tls && havePSK) { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_AES_256_CCM_8; - } -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_NULL_SHA384 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveDH && havePSK) -#else - if (tls && haveDH && havePSK) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_PSK_WITH_NULL_SHA384; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_NULL_SHA384 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && havePSK) -#else - if (tls && havePSK) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_NULL_SHA384; - } -#endif - -#ifdef BUILD_TLS_ECDHE_PSK_WITH_NULL_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && havePSK) -#else - if (tls && havePSK) -#endif - { - suites->suites[idx++] = ECC_BYTE; - suites->suites[idx++] = TLS_ECDHE_PSK_WITH_NULL_SHA256; - } -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_NULL_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveDH && havePSK) -#else - if (tls && haveDH && havePSK) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_PSK_WITH_NULL_SHA256; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_NULL_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && havePSK) -#else - if (tls && havePSK) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_NULL_SHA256; - } -#endif - -#ifdef BUILD_TLS_PSK_WITH_NULL_SHA - if (tls && havePSK) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_PSK_WITH_NULL_SHA; - } -#endif - -#ifdef BUILD_SSL_RSA_WITH_RC4_128_SHA - if (!dtls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = SSL_RSA_WITH_RC4_128_SHA; - } -#endif - -#ifdef BUILD_SSL_RSA_WITH_RC4_128_MD5 - if (!dtls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = SSL_RSA_WITH_RC4_128_MD5; - } -#endif - -#ifdef BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA - if (haveRSA ) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = SSL_RSA_WITH_3DES_EDE_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_HC_128_MD5 - if (!dtls && tls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_HC_128_MD5; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_HC_128_SHA - if (!dtls && tls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_HC_128_SHA; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_RABBIT_SHA - if (!dtls && tls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_RABBIT_SHA; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA - if (tls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA - if (tls && haveDH && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA - if (tls && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_256_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA - if (tls && haveDH && haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveRSA) -#else - if (tls && haveRSA) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveDH && haveRSA) -#else - if (tls && haveDH && haveRSA) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveRSA) -#else - if (tls && haveRSA) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256; - } -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 -#ifndef WOLFSSL_OLDTLS_SHA2_CIPHERSUITES - if (tls1_2 && haveDH && haveRSA) -#else - if (tls && haveDH && haveRSA) -#endif - { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256; - } -#endif - -#ifdef BUILD_SSL_RSA_WITH_IDEA_CBC_SHA - if (haveRSA) { - suites->suites[idx++] = CIPHER_BYTE; - suites->suites[idx++] = SSL_RSA_WITH_IDEA_CBC_SHA; - } -#endif - -#endif /* !WOLFSSL_NO_TLS12 */ - - suites->suiteSz = idx; - - InitSuitesHashSigAlgo(suites, haveECDSAsig | haveECC, haveRSAsig | haveRSA, - 0, tls1_2, keySz); -} - -#if !defined(NO_WOLFSSL_SERVER) || !defined(NO_CERTS) || \ - (!defined(NO_WOLFSSL_CLIENT) && (!defined(NO_DH) || defined(HAVE_ECC))) - -/* Decode the signature algorithm. - * - * input The encoded signature algorithm. - * hashalgo The hash algorithm. - * hsType The signature type. - */ -static WC_INLINE void DecodeSigAlg(const byte* input, byte* hashAlgo, byte* hsType) -{ - switch (input[0]) { - case NEW_SA_MAJOR: - #ifdef HAVE_ED25519 - /* ED25519: 0x0807 */ - if (input[1] == ED25519_SA_MINOR) { - *hsType = ed25519_sa_algo; - /* Hash performed as part of sign/verify operation. */ - *hashAlgo = sha512_mac; - } - else - #endif - #ifdef HAVE_ED448 - /* ED448: 0x0808 */ - if (input[1] == ED448_SA_MINOR) { - *hsType = ed448_sa_algo; - /* Hash performed as part of sign/verify operation. */ - *hashAlgo = sha512_mac; - } - else - #endif - #ifdef WC_RSA_PSS - /* PSS PSS signatures: 0x080[9-b] */ - if (input[1] >= pss_sha256 && input[1] <= pss_sha512) { - *hsType = rsa_pss_pss_algo; - *hashAlgo = PSS_PSS_HASH_TO_MAC(input[1]); - } - else - #endif - { - *hsType = input[0]; - *hashAlgo = input[1]; - } - break; - default: - *hashAlgo = input[0]; - *hsType = input[1]; - break; - } -} -#endif /* !NO_WOLFSSL_SERVER || !NO_CERTS */ - -#ifndef WOLFSSL_NO_TLS12 -#if !defined(NO_WOLFSSL_SERVER) || !defined(NO_WOLFSSL_CLIENT) -#if !defined(NO_DH) || defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) || (!defined(NO_RSA) && defined(WC_RSA_PSS)) - -static enum wc_HashType HashAlgoToType(int hashAlgo) -{ - switch (hashAlgo) { - #ifdef WOLFSSL_SHA512 - case sha512_mac: - return WC_HASH_TYPE_SHA512; - #endif - #ifdef WOLFSSL_SHA384 - case sha384_mac: - return WC_HASH_TYPE_SHA384; - #endif - #ifndef NO_SHA256 - case sha256_mac: - return WC_HASH_TYPE_SHA256; - #endif - #ifdef WOLFSSL_SHA224 - case sha224_mac: - return WC_HASH_TYPE_SHA224; - #endif - #if !defined(NO_SHA) && (!defined(NO_OLD_TLS) || \ - defined(WOLFSSL_ALLOW_TLS_SHA1)) - case sha_mac: - return WC_HASH_TYPE_SHA; - #endif - default: - WOLFSSL_MSG("Bad hash sig algo"); - break; - } - - return WC_HASH_TYPE_NONE; -} -#endif /* !NO_DH || HAVE_ECC || (!NO_RSA && WC_RSA_PSS) */ -#endif /* !NO_WOLFSSL_SERVER || !NO_WOLFSSL_CLIENT */ -#endif /* !WOLFSSL_NO_TLS12 */ - -#ifndef NO_CERTS - -void InitX509Name(WOLFSSL_X509_NAME* name, int dynamicFlag) -{ - (void)dynamicFlag; - - if (name != NULL) { - name->name = name->staticName; - name->dynamicName = 0; - name->sz = 0; -#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - XMEMSET(&name->fullName, 0, sizeof(DecodedName)); - XMEMSET(&name->cnEntry, 0, sizeof(WOLFSSL_X509_NAME_ENTRY)); - XMEMSET(&name->extra, 0, sizeof(name->extra)); - name->cnEntry.value = &(name->cnEntry.data); /* point to internal data*/ - name->cnEntry.nid = ASN_COMMON_NAME; - name->x509 = NULL; -#endif /* OPENSSL_EXTRA */ - } -} - - -void FreeX509Name(WOLFSSL_X509_NAME* name, void* heap) -{ - if (name != NULL) { - if (name->dynamicName) { - XFREE(name->name, heap, DYNAMIC_TYPE_SUBJECT_CN); - name->name = NULL; - } -#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - { - int i; - if (name->fullName.fullName != NULL) { - XFREE(name->fullName.fullName, heap, DYNAMIC_TYPE_X509); - name->fullName.fullName = NULL; - } - for (i = 0; i < MAX_NAME_ENTRIES; i++) { - /* free ASN1 string data */ - if (name->extra[i].set && name->extra[i].data.data != NULL) { - XFREE(name->extra[i].data.data, heap, DYNAMIC_TYPE_OPENSSL); - } - } - wolfSSL_ASN1_OBJECT_free(&name->cnEntry.object); - } -#endif /* OPENSSL_EXTRA || OPENSSL_EXTRA_X509_SMALL */ - } - (void)heap; -} - - -/* Initialize wolfSSL X509 type */ -void InitX509(WOLFSSL_X509* x509, int dynamicFlag, void* heap) -{ - if (x509 == NULL) { - WOLFSSL_MSG("Null parameter passed in!"); - return; - } - - XMEMSET(x509, 0, sizeof(WOLFSSL_X509)); - - x509->heap = heap; - InitX509Name(&x509->issuer, 0); - InitX509Name(&x509->subject, 0); - x509->dynamicMemory = (byte)dynamicFlag; - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_ALL) - x509->refCount = 1; - (void)wc_InitMutex(&x509->refMutex); - #endif -} - - -/* Free wolfSSL X509 type */ -void FreeX509(WOLFSSL_X509* x509) -{ - if (x509 == NULL) - return; - - FreeX509Name(&x509->issuer, x509->heap); - FreeX509Name(&x509->subject, x509->heap); - if (x509->pubKey.buffer) { - XFREE(x509->pubKey.buffer, x509->heap, DYNAMIC_TYPE_PUBLIC_KEY); - x509->pubKey.buffer = NULL; - } - FreeDer(&x509->derCert); - XFREE(x509->sig.buffer, x509->heap, DYNAMIC_TYPE_SIGNATURE); - x509->sig.buffer = NULL; - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - XFREE(x509->authKeyId, x509->heap, DYNAMIC_TYPE_X509_EXT); - x509->authKeyId = NULL; - XFREE(x509->subjKeyId, x509->heap, DYNAMIC_TYPE_X509_EXT); - x509->subjKeyId = NULL; - if (x509->authInfo != NULL) { - XFREE(x509->authInfo, x509->heap, DYNAMIC_TYPE_X509_EXT); - x509->authInfo = NULL; - } - #if defined(OPENSSL_ALL) || defined(WOLFSSL_QT) - if (x509->authInfoCaIssuer != NULL) { - XFREE(x509->authInfoCaIssuer, x509->heap, DYNAMIC_TYPE_X509_EXT); - } - if (x509->ext_sk != NULL) { - wolfSSL_sk_X509_EXTENSION_free(x509->ext_sk); - } - #endif /* OPENSSL_ALL || WOLFSSL_QT */ - #ifdef OPENSSL_EXTRA - /* Free serialNumber that was set by wolfSSL_X509_get_serialNumber */ - if (x509->serialNumber != NULL) { - wolfSSL_ASN1_INTEGER_free(x509->serialNumber); - } - #endif - if (x509->extKeyUsageSrc != NULL) { - XFREE(x509->extKeyUsageSrc, x509->heap, DYNAMIC_TYPE_X509_EXT); - x509->extKeyUsageSrc= NULL; - } - #endif /* OPENSSL_EXTRA || OPENSSL_EXTRA_X509_SMALL */ - #if defined(OPENSSL_ALL) - if (x509->algor.algorithm) { - wolfSSL_ASN1_OBJECT_free(x509->algor.algorithm); - x509->algor.algorithm = NULL; - } - if (x509->key.algor) { - wolfSSL_X509_ALGOR_free(x509->key.algor); - x509->key.algor = NULL; - } - if (x509->key.pkey) { - wolfSSL_EVP_PKEY_free(x509->key.pkey); - x509->key.pkey = NULL; - } - #endif /* OPENSSL_ALL */ - if (x509->altNames) { - FreeAltNames(x509->altNames, x509->heap); - x509->altNames = NULL; - } - - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_ALL) - wc_FreeMutex(&x509->refMutex); - #endif -} - - -#if !defined(NO_WOLFSSL_SERVER) || !defined(NO_WOLFSSL_CLIENT) -#if !defined(WOLFSSL_NO_TLS12) -/* Encode the signature algorithm into buffer. - * - * hashalgo The hash algorithm. - * hsType The signature type. - * output The buffer to encode into. - */ -static WC_INLINE void EncodeSigAlg(byte hashAlgo, byte hsType, byte* output) -{ - switch (hsType) { -#ifdef HAVE_ECC - case ecc_dsa_sa_algo: - output[0] = hashAlgo; - output[1] = ecc_dsa_sa_algo; - break; -#endif -#ifdef HAVE_ED25519 - case ed25519_sa_algo: - output[0] = ED25519_SA_MAJOR; - output[1] = ED25519_SA_MINOR; - (void)hashAlgo; - break; -#endif -#ifdef HAVE_ED448 - case ed448_sa_algo: - output[0] = ED448_SA_MAJOR; - output[1] = ED448_SA_MINOR; - (void)hashAlgo; - break; -#endif -#ifndef NO_RSA - case rsa_sa_algo: - output[0] = hashAlgo; - output[1] = rsa_sa_algo; - break; - #ifdef WC_RSA_PSS - /* PSS signatures: 0x080[4-6] */ - case rsa_pss_sa_algo: - output[0] = rsa_pss_sa_algo; - output[1] = hashAlgo; - break; - #endif -#endif - } - (void)hashAlgo; - (void)output; -} -#endif - -#if !defined(WOLFSSL_NO_TLS12) && !defined(WOLFSSL_NO_CLIENT_AUTH) -static void SetDigest(WOLFSSL* ssl, int hashAlgo) -{ - switch (hashAlgo) { - #ifndef NO_SHA - case sha_mac: - ssl->buffers.digest.buffer = ssl->hsHashes->certHashes.sha; - ssl->buffers.digest.length = WC_SHA_DIGEST_SIZE; - break; - #endif /* !NO_SHA */ - #ifndef NO_SHA256 - case sha256_mac: - ssl->buffers.digest.buffer = ssl->hsHashes->certHashes.sha256; - ssl->buffers.digest.length = WC_SHA256_DIGEST_SIZE; - break; - #endif /* !NO_SHA256 */ - #ifdef WOLFSSL_SHA384 - case sha384_mac: - ssl->buffers.digest.buffer = ssl->hsHashes->certHashes.sha384; - ssl->buffers.digest.length = WC_SHA384_DIGEST_SIZE; - break; - #endif /* WOLFSSL_SHA384 */ - #ifdef WOLFSSL_SHA512 - case sha512_mac: - ssl->buffers.digest.buffer = ssl->hsHashes->certHashes.sha512; - ssl->buffers.digest.length = WC_SHA512_DIGEST_SIZE; - break; - #endif /* WOLFSSL_SHA512 */ - } /* switch */ -} -#endif /* !WOLFSSL_NO_TLS12 && !WOLFSSL_NO_CLIENT_AUTH */ -#endif /* !NO_WOLFSSL_SERVER || !NO_WOLFSSL_CLIENT */ -#endif /* !NO_CERTS */ - -#if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) -static word32 MacSize(WOLFSSL* ssl) -{ -#ifdef HAVE_TRUNCATED_HMAC - word32 digestSz = ssl->truncated_hmac ? (byte)TRUNCATED_HMAC_SZ - : ssl->specs.hash_size; -#else - word32 digestSz = ssl->specs.hash_size; -#endif - - return digestSz; -} -#endif /* HAVE_ENCRYPT_THEN_MAC && !WOLFSSL_AEAD_ONLY */ - -#ifndef NO_RSA -#ifndef WOLFSSL_NO_TLS12 -#if !defined(NO_WOLFSSL_SERVER) || (!defined(NO_WOLFSSL_CLIENT) && \ - !defined(WOLFSSL_NO_CLIENT_AUTH)) -static int TypeHash(int hashAlgo) -{ - switch (hashAlgo) { - #ifdef WOLFSSL_SHA512 - case sha512_mac: - return SHA512h; - #endif - #ifdef WOLFSSL_SHA384 - case sha384_mac: - return SHA384h; - #endif - #ifndef NO_SHA256 - case sha256_mac: - return SHA256h; - #endif - #ifdef WOLFSSL_SHA224 - case sha224_mac: - return SHA224h; - #endif - #ifndef NO_SHA - case sha_mac: - return SHAh; - #endif - } - - return 0; -} -#endif /* !NO_WOLFSSL_SERVER && !NO_WOLFSSL_CLIENT */ -#endif /* !WOLFSSL_NO_TLS12 */ - -#if defined(WC_RSA_PSS) -int ConvertHashPss(int hashAlgo, enum wc_HashType* hashType, int* mgf) -{ - switch (hashAlgo) { - #ifdef WOLFSSL_SHA512 - case sha512_mac: - *hashType = WC_HASH_TYPE_SHA512; - if (mgf != NULL) - *mgf = WC_MGF1SHA512; - break; - #endif - #ifdef WOLFSSL_SHA384 - case sha384_mac: - *hashType = WC_HASH_TYPE_SHA384; - if (mgf != NULL) - *mgf = WC_MGF1SHA384; - break; - #endif - #ifndef NO_SHA256 - case sha256_mac: - *hashType = WC_HASH_TYPE_SHA256; - if (mgf != NULL) - *mgf = WC_MGF1SHA256; - break; - #endif - default: - return BAD_FUNC_ARG; - } - - return 0; -} -#endif - -#if !defined(NO_WOLFSSL_SERVER) || !defined(WOLFSSL_NO_CLIENT_AUTH) -int RsaSign(WOLFSSL* ssl, const byte* in, word32 inSz, byte* out, - word32* outSz, int sigAlgo, int hashAlgo, RsaKey* key, - DerBuffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - (void)sigAlgo; - (void)hashAlgo; - - WOLFSSL_ENTER("RsaSign"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - if (key) { - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; - } -#endif - -#if defined(WC_RSA_PSS) - if (sigAlgo == rsa_pss_sa_algo) { - enum wc_HashType hashType = WC_HASH_TYPE_NONE; - int mgf = 0; - - ret = ConvertHashPss(hashAlgo, &hashType, &mgf); - if (ret != 0) - return ret; - - #if defined(HAVE_PK_CALLBACKS) - if (ssl->ctx->RsaPssSignCb) { - void* ctx = wolfSSL_GetRsaPssSignCtx(ssl); - ret = ssl->ctx->RsaPssSignCb(ssl, in, inSz, out, outSz, - TypeHash(hashAlgo), mgf, - keyBuf, keySz, ctx); - } - else - #endif - { - ret = wc_RsaPSS_Sign(in, inSz, out, *outSz, hashType, mgf, key, - ssl->rng); - } - } - else -#endif -#if defined(HAVE_PK_CALLBACKS) - if (ssl->ctx->RsaSignCb) { - void* ctx = wolfSSL_GetRsaSignCtx(ssl); - ret = ssl->ctx->RsaSignCb(ssl, in, inSz, out, outSz, keyBuf, keySz, - ctx); - } - else -#endif /*HAVE_PK_CALLBACKS */ - ret = wc_RsaSSL_Sign(in, inSz, out, *outSz, key, ssl->rng); - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (key && ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - /* For positive response return in outSz */ - if (ret > 0) { - *outSz = ret; - ret = 0; - } - - WOLFSSL_LEAVE("RsaSign", ret); - - return ret; -} -#endif - -int RsaVerify(WOLFSSL* ssl, byte* in, word32 inSz, byte** out, int sigAlgo, - int hashAlgo, RsaKey* key, buffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - (void)sigAlgo; - (void)hashAlgo; - - WOLFSSL_ENTER("RsaVerify"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#if defined(WC_RSA_PSS) - if (sigAlgo == rsa_pss_sa_algo) { - enum wc_HashType hashType = WC_HASH_TYPE_NONE; - int mgf = 0; - - ret = ConvertHashPss(hashAlgo, &hashType, &mgf); - if (ret != 0) - return ret; -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->RsaPssVerifyCb) { - void* ctx = wolfSSL_GetRsaPssVerifyCtx(ssl); - ret = ssl->ctx->RsaPssVerifyCb(ssl, in, inSz, out, - TypeHash(hashAlgo), mgf, - keyBuf, keySz, ctx); - } - else -#endif /*HAVE_PK_CALLBACKS */ - ret = wc_RsaPSS_VerifyInline(in, inSz, out, hashType, mgf, key); - } - else -#endif -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->RsaVerifyCb) { - void* ctx = wolfSSL_GetRsaVerifyCtx(ssl); - ret = ssl->ctx->RsaVerifyCb(ssl, in, inSz, out, keyBuf, keySz, ctx); - } - else -#endif /*HAVE_PK_CALLBACKS */ - { - ret = wc_RsaSSL_VerifyInline(in, inSz, out, key); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("RsaVerify", ret); - - return ret; -} - -/* Verify RSA signature, 0 on success */ -/* This function is used to check the sign result */ -int VerifyRsaSign(WOLFSSL* ssl, byte* verifySig, word32 sigSz, - const byte* plain, word32 plainSz, int sigAlgo, int hashAlgo, RsaKey* key, - DerBuffer* keyBufInfo) -{ - byte* out = NULL; /* inline result */ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - (void)sigAlgo; - (void)hashAlgo; - - WOLFSSL_ENTER("VerifyRsaSign"); - - if (verifySig == NULL || plain == NULL) { - return BAD_FUNC_ARG; - } - - if (sigSz > ENCRYPT_LEN) { - WOLFSSL_MSG("Signature buffer too big"); - return BUFFER_E; - } - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - if (key) { - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; - } -#endif - -#if defined(WC_RSA_PSS) - if (sigAlgo == rsa_pss_sa_algo) { - enum wc_HashType hashType = WC_HASH_TYPE_NONE; - int mgf = 0; - - ret = ConvertHashPss(hashAlgo, &hashType, &mgf); - if (ret != 0) - return ret; - #ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->RsaPssSignCheckCb) { - /* The key buffer includes private/public portion, - but only public is used */ - /* If HSM hardware is checking the signature result you can - optionally skip the sign check and return 0 */ - /* The ctx here is the RsaSignCtx set using wolfSSL_SetRsaSignCtx */ - void* ctx = wolfSSL_GetRsaPssSignCtx(ssl); - ret = ssl->ctx->RsaPssSignCheckCb(ssl, verifySig, sigSz, &out, - TypeHash(hashAlgo), mgf, - keyBuf, keySz, ctx); - if (ret > 0) { - ret = wc_RsaPSS_CheckPadding(plain, plainSz, out, ret, - hashType); - if (ret != 0) - ret = VERIFY_CERT_ERROR; - } - } - else - #endif /* HAVE_PK_CALLBACKS */ - { - ret = wc_RsaPSS_VerifyInline(verifySig, sigSz, &out, hashType, mgf, - key); - if (ret > 0) { - #ifdef HAVE_SELFTEST - ret = wc_RsaPSS_CheckPadding(plain, plainSz, out, ret, - hashType); - #else - ret = wc_RsaPSS_CheckPadding_ex(plain, plainSz, out, ret, - hashType, -1, - mp_count_bits(&key->n)); - #endif - if (ret != 0) - ret = VERIFY_CERT_ERROR; - } - } - - } - else -#endif /* WC_RSA_PSS */ - { - #ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->RsaSignCheckCb) { - /* The key buffer includes private/public portion, - but only public is used */ - /* If HSM hardware is checking the signature result you can - optionally skip the sign check and return 0 */ - /* The ctx here is the RsaSignCtx set using wolfSSL_SetRsaSignCtx */ - void* ctx = wolfSSL_GetRsaSignCtx(ssl); - ret = ssl->ctx->RsaSignCheckCb(ssl, verifySig, sigSz, &out, - keyBuf, keySz, ctx); - } - else - #endif /* HAVE_PK_CALLBACKS */ - { - ret = wc_RsaSSL_VerifyInline(verifySig, sigSz, &out, key); - } - - if (ret > 0) { - if (ret != (int)plainSz || !out || - XMEMCMP(plain, out, plainSz) != 0) { - WOLFSSL_MSG("RSA Signature verification failed"); - ret = RSA_SIGN_FAULT; - } else { - ret = 0; /* RSA reset */ - } - } - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (key && ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("VerifyRsaSign", ret); - - return ret; -} - -#ifndef WOLFSSL_NO_TLS12 - -#if !defined(NO_WOLFSSL_SERVER) || !defined(WOLFSSL_NO_CLIENT_AUTH) -int RsaDec(WOLFSSL* ssl, byte* in, word32 inSz, byte** out, word32* outSz, - RsaKey* key, DerBuffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - - WOLFSSL_ENTER("RsaDec"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->RsaDecCb) { - void* ctx = wolfSSL_GetRsaDecCtx(ssl); - ret = ssl->ctx->RsaDecCb(ssl, in, inSz, out, keyBuf, keySz, ctx); - } - else -#endif /* HAVE_PK_CALLBACKS */ - { - #ifdef WC_RSA_BLINDING - ret = wc_RsaSetRNG(key, ssl->rng); - if (ret != 0) - return ret; - #endif - ret = wc_RsaPrivateDecryptInline(in, inSz, out, key); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - /* For positive response return in outSz */ - if (ret > 0) { - *outSz = ret; - ret = 0; - } - - WOLFSSL_LEAVE("RsaDec", ret); - - return ret; -} -#endif /* !NO_WOLFSSL_SERVER) || !WOLFSSL_NO_CLIENT_AUTH */ - -int RsaEnc(WOLFSSL* ssl, const byte* in, word32 inSz, byte* out, word32* outSz, - RsaKey* key, buffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - - WOLFSSL_ENTER("RsaEnc"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->RsaEncCb) { - void* ctx = wolfSSL_GetRsaEncCtx(ssl); - ret = ssl->ctx->RsaEncCb(ssl, in, inSz, out, outSz, keyBuf, keySz, ctx); - } - else -#endif /* HAVE_PK_CALLBACKS */ - { - ret = wc_RsaPublicEncrypt(in, inSz, out, *outSz, key, ssl->rng); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - /* For positive response return in outSz */ - if (ret > 0) { - *outSz = ret; - ret = 0; - } - - WOLFSSL_LEAVE("RsaEnc", ret); - - return ret; -} - -#endif /* !WOLFSSL_NO_TLS12 */ - -#endif /* NO_RSA */ - -#ifdef HAVE_ECC - -int EccSign(WOLFSSL* ssl, const byte* in, word32 inSz, byte* out, - word32* outSz, ecc_key* key, DerBuffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - - WOLFSSL_ENTER("EccSign"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - if (key) { - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; - } -#endif - -#if defined(HAVE_PK_CALLBACKS) - if (ssl->ctx->EccSignCb) { - void* ctx = wolfSSL_GetEccSignCtx(ssl); - ret = ssl->ctx->EccSignCb(ssl, in, inSz, out, outSz, keyBuf, - keySz, ctx); - } - else -#endif /* HAVE_PK_CALLBACKS */ - { - ret = wc_ecc_sign_hash(in, inSz, out, outSz, ssl->rng, key); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (key && ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("EccSign", ret); - - return ret; -} - -int EccVerify(WOLFSSL* ssl, const byte* in, word32 inSz, const byte* out, - word32 outSz, ecc_key* key, buffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - - WOLFSSL_ENTER("EccVerify"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->EccVerifyCb) { - void* ctx = wolfSSL_GetEccVerifyCtx(ssl); - ret = ssl->ctx->EccVerifyCb(ssl, in, inSz, out, outSz, keyBuf, keySz, - &ssl->eccVerifyRes, ctx); - } - else -#endif /* HAVE_PK_CALLBACKS */ - { - ret = wc_ecc_verify_hash(in, inSz, out, outSz, &ssl->eccVerifyRes, key); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } - else -#endif /* WOLFSSL_ASYNC_CRYPT */ - { - ret = (ret != 0 || ssl->eccVerifyRes == 0) ? VERIFY_SIGN_ERROR : 0; - } - - WOLFSSL_LEAVE("EccVerify", ret); - - return ret; -} - -#ifdef HAVE_PK_CALLBACKS - /* Gets ECC key for shared secret callback testing - * Client side: returns peer key - * Server side: returns private key - */ - static int EccGetKey(WOLFSSL* ssl, ecc_key** otherKey) - { - int ret = NO_PEER_KEY; - ecc_key* tmpKey = NULL; - - if (ssl == NULL || otherKey == NULL) { - return BAD_FUNC_ARG; - } - - if (ssl->options.side == WOLFSSL_CLIENT_END) { - if (ssl->specs.static_ecdh) { - if (!ssl->peerEccDsaKey || !ssl->peerEccDsaKeyPresent || - !ssl->peerEccDsaKey->dp) { - return NO_PEER_KEY; - } - tmpKey = (struct ecc_key*)ssl->peerEccDsaKey; - } - else { - if (!ssl->peerEccKey || !ssl->peerEccKeyPresent || - !ssl->peerEccKey->dp) { - return NO_PEER_KEY; - } - tmpKey = (struct ecc_key*)ssl->peerEccKey; - } - } - else if (ssl->options.side == WOLFSSL_SERVER_END) { - if (ssl->specs.static_ecdh) { - if (ssl->hsKey == NULL) { - return NO_PRIVATE_KEY; - } - tmpKey = (struct ecc_key*)ssl->hsKey; - } - else { - if (!ssl->eccTempKeyPresent) { - return NO_PRIVATE_KEY; - } - tmpKey = (struct ecc_key*)ssl->eccTempKey; - } - } - - if (tmpKey) { - *otherKey = tmpKey; - ret = 0; - } - - return ret; - } -#endif /* HAVE_PK_CALLBACKS */ - -int EccSharedSecret(WOLFSSL* ssl, ecc_key* priv_key, ecc_key* pub_key, - byte* pubKeyDer, word32* pubKeySz, byte* out, word32* outlen, - int side) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - ecc_key* otherKey = NULL; -#endif -#ifdef WOLFSSL_ASYNC_CRYPT - WC_ASYNC_DEV* asyncDev = &priv_key->asyncDev; -#endif - - (void)ssl; - (void)pubKeyDer; - (void)pubKeySz; - (void)side; - - WOLFSSL_ENTER("EccSharedSecret"); - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->EccSharedSecretCb) { - ret = EccGetKey(ssl, &otherKey); - if (ret != 0) - return ret; - #ifdef WOLFSSL_ASYNC_CRYPT - asyncDev = &otherKey->asyncDev; - #endif - } -#endif - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->EccSharedSecretCb) { - void* ctx = wolfSSL_GetEccSharedSecretCtx(ssl); - ret = ssl->ctx->EccSharedSecretCb(ssl, otherKey, pubKeyDer, - pubKeySz, out, outlen, side, ctx); - } - else -#endif - { - ret = wc_ecc_shared_secret(priv_key, pub_key, out, outlen); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("EccSharedSecret", ret); - - return ret; -} - -int EccMakeKey(WOLFSSL* ssl, ecc_key* key, ecc_key* peer) -{ - int ret = 0; - int keySz = 0; - int ecc_curve = ECC_CURVE_DEF; - - WOLFSSL_ENTER("EccMakeKey"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_NONE); - if (ret != 0) - return ret; -#endif - - /* get key size */ - if (peer == NULL) { - keySz = ssl->eccTempKeySz; - } - else { - keySz = peer->dp->size; - } - - /* get curve type */ - if (ssl->ecdhCurveOID > 0) { - ecc_curve = wc_ecc_get_oid(ssl->ecdhCurveOID, NULL, NULL); - } - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->EccKeyGenCb) { - void* ctx = wolfSSL_GetEccKeyGenCtx(ssl); - ret = ssl->ctx->EccKeyGenCb(ssl, key, keySz, ecc_curve, ctx); - } - else -#endif - { - ret = wc_ecc_make_key_ex(ssl->rng, keySz, key, ecc_curve); - } - - /* make sure the curve is set for TLS */ - if (ret == 0 && key->dp) { - ssl->ecdhCurveOID = key->dp->oidSum; - #if defined(WOLFSSL_TLS13) || defined(HAVE_FFDHE) - ssl->namedGroup = 0; - #endif - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("EccMakeKey", ret); - - return ret; -} -#endif /* HAVE_ECC */ - -#ifdef HAVE_ED25519 -/* Check whether the key contains a public key. - * If not then pull it out of the leaf certificate. - * - * ssl SSL/TLS object. - * returns MEMORY_E when unable to allocate memory, a parsing error, otherwise - * 0 on success. - */ -int Ed25519CheckPubKey(WOLFSSL* ssl) -{ - ed25519_key* key = (ed25519_key*)ssl->hsKey; - int ret = 0; - - /* Public key required for signing. */ - if (!key->pubKeySet) { - DerBuffer* leaf = ssl->buffers.certificate; - DecodedCert* cert = (DecodedCert*)XMALLOC(sizeof(*cert), - ssl->heap, DYNAMIC_TYPE_DCERT); - if (cert == NULL) - ret = MEMORY_E; - - if (ret == 0) { - InitDecodedCert(cert, leaf->buffer, leaf->length, ssl->heap); - ret = DecodeToKey(cert, 0); - } - if (ret == 0) { - ret = wc_ed25519_import_public(cert->publicKey, cert->pubKeySize, - key); - } - if (cert != NULL) { - FreeDecodedCert(cert); - XFREE(cert, ssl->heap, DYNAMIC_TYPE_DCERT); - } - } - - return ret; -} - -/* Sign the data using EdDSA and key using Ed25519. - * - * ssl SSL object. - * in Data or message to sign. - * inSz Length of the data. - * out Buffer to hold signature. - * outSz On entry, size of the buffer. On exit, the size of the signature. - * key The private Ed25519 key data. - * keySz The length of the private key data in bytes. - * ctx The callback context. - * returns 0 on success, otherwise the value is an error. - */ -int Ed25519Sign(WOLFSSL* ssl, const byte* in, word32 inSz, byte* out, - word32* outSz, ed25519_key* key, DerBuffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - - WOLFSSL_ENTER("Ed25519Sign"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#if defined(HAVE_PK_CALLBACKS) - if (ssl->ctx->Ed25519SignCb) { - void* ctx = wolfSSL_GetEd25519SignCtx(ssl); - ret = ssl->ctx->Ed25519SignCb(ssl, in, inSz, out, outSz, keyBuf, - keySz, ctx); - } - else -#endif /* HAVE_PK_CALLBACKS */ - { - ret = wc_ed25519_sign_msg(in, inSz, out, outSz, key); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("Ed25519Sign", ret); - - return ret; -} - -/* Verify the data using EdDSA and key using Ed25519. - * - * ssl SSL object. - * in Signature data. - * inSz Length of the signature data in bytes. - * msg Message to verify. - * outSz Length of message in bytes. - * key The public Ed25519 key data. - * keySz The length of the private key data in bytes. - * ctx The callback context. - * returns 0 on success, otherwise the value is an error. - */ -int Ed25519Verify(WOLFSSL* ssl, const byte* in, word32 inSz, const byte* msg, - word32 msgSz, ed25519_key* key, buffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - - WOLFSSL_ENTER("Ed25519Verify"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->Ed25519VerifyCb) { - void* ctx = wolfSSL_GetEd25519VerifyCtx(ssl); - ret = ssl->ctx->Ed25519VerifyCb(ssl, in, inSz, msg, msgSz, keyBuf, - keySz, &ssl->eccVerifyRes, ctx); - } - else -#endif /* HAVE_PK_CALLBACKS */ - { - ret = wc_ed25519_verify_msg(in, inSz, msg, msgSz, - &ssl->eccVerifyRes, key); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } - else -#endif /* WOLFSSL_ASYNC_CRYPT */ - { - ret = (ret != 0 || ssl->eccVerifyRes == 0) ? VERIFY_SIGN_ERROR : 0; - } - - WOLFSSL_LEAVE("Ed25519Verify", ret); - - return ret; -} -#endif /* HAVE_ED25519 */ - -#ifndef WOLFSSL_NO_TLS12 - -#ifdef HAVE_CURVE25519 -#ifdef HAVE_PK_CALLBACKS - /* Gets X25519 key for shared secret callback testing - * Client side: returns peer key - * Server side: returns private key - */ - static int X25519GetKey(WOLFSSL* ssl, curve25519_key** otherKey) - { - int ret = NO_PEER_KEY; - struct curve25519_key* tmpKey = NULL; - - if (ssl == NULL || otherKey == NULL) { - return BAD_FUNC_ARG; - } - - if (ssl->options.side == WOLFSSL_CLIENT_END) { - if (!ssl->peerX25519Key || !ssl->peerX25519KeyPresent || - !ssl->peerX25519Key->dp) { - return NO_PEER_KEY; - } - tmpKey = (struct curve25519_key*)ssl->peerX25519Key; - } - else if (ssl->options.side == WOLFSSL_SERVER_END) { - if (!ssl->eccTempKeyPresent) { - return NO_PRIVATE_KEY; - } - tmpKey = (struct curve25519_key*)ssl->eccTempKey; - } - - if (tmpKey) { - *otherKey = (curve25519_key *)tmpKey; - ret = 0; - } - - return ret; - } -#endif /* HAVE_PK_CALLBACKS */ - -static int X25519SharedSecret(WOLFSSL* ssl, curve25519_key* priv_key, - curve25519_key* pub_key, byte* pubKeyDer, word32* pubKeySz, - byte* out, word32* outlen, int side) -{ - int ret; - - (void)ssl; - (void)pubKeyDer; - (void)pubKeySz; - (void)side; - - WOLFSSL_ENTER("X25519SharedSecret"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &priv_key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->X25519SharedSecretCb) { - curve25519_key* otherKey = NULL; - - ret = X25519GetKey(ssl, &otherKey); - if (ret == 0) { - void* ctx = wolfSSL_GetX25519SharedSecretCtx(ssl); - ret = ssl->ctx->X25519SharedSecretCb(ssl, otherKey, pubKeyDer, - pubKeySz, out, outlen, side, ctx); - } - } - else -#endif - { - ret = wc_curve25519_shared_secret_ex(priv_key, pub_key, out, outlen, - EC25519_LITTLE_ENDIAN); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &priv_key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("X25519SharedSecret", ret); - - return ret; -} - -static int X25519MakeKey(WOLFSSL* ssl, curve25519_key* key, - curve25519_key* peer) -{ - int ret = 0; - - (void)peer; - - WOLFSSL_ENTER("X25519MakeKey"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_NONE); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->X25519KeyGenCb) { - void* ctx = wolfSSL_GetX25519KeyGenCtx(ssl); - ret = ssl->ctx->X25519KeyGenCb(ssl, key, CURVE25519_KEYSIZE, ctx); - } - else -#endif - { - ret = wc_curve25519_make_key(ssl->rng, CURVE25519_KEYSIZE, key); - } - - if (ret == 0) { - ssl->ecdhCurveOID = ECC_X25519_OID; - #if defined(WOLFSSL_TLS13) || defined(HAVE_FFDHE) - ssl->namedGroup = 0; - #endif - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("X25519MakeKey", ret); - - return ret; -} -#endif /* HAVE_CURVE25519 */ - -#ifdef HAVE_ED448 -/* Check whether the key contains a public key. - * If not then pull it out of the leaf certificate. - * - * ssl SSL/TLS object. - * returns MEMORY_E when unable to allocate memory, a parsing error, otherwise - * 0 on success. - */ -int Ed448CheckPubKey(WOLFSSL* ssl) -{ - ed448_key* key = (ed448_key*)ssl->hsKey; - int ret = 0; - - /* Public key required for signing. */ - if (!key->pubKeySet) { - DerBuffer* leaf = ssl->buffers.certificate; - DecodedCert* cert = (DecodedCert*)XMALLOC(sizeof(*cert), ssl->heap, - DYNAMIC_TYPE_DCERT); - if (cert == NULL) - ret = MEMORY_E; - - if (ret == 0) { - InitDecodedCert(cert, leaf->buffer, leaf->length, ssl->heap); - ret = DecodeToKey(cert, 0); - } - if (ret == 0) { - ret = wc_ed448_import_public(cert->publicKey, cert->pubKeySize, - key); - } - if (cert != NULL) { - FreeDecodedCert(cert); - XFREE(cert, ssl->heap, DYNAMIC_TYPE_DCERT); - } - } - - return ret; -} - -/* Sign the data using EdDSA and key using Ed448. - * - * ssl SSL object. - * in Data or message to sign. - * inSz Length of the data. - * out Buffer to hold signature. - * outSz On entry, size of the buffer. On exit, the size of the signature. - * key The private Ed448 key data. - * keySz The length of the private key data in bytes. - * ctx The callback context. - * returns 0 on success, otherwise the value is an error. - */ -int Ed448Sign(WOLFSSL* ssl, const byte* in, word32 inSz, byte* out, - word32* outSz, ed448_key* key, DerBuffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - - WOLFSSL_ENTER("Ed448Sign"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#if defined(HAVE_PK_CALLBACKS) - if (ssl->ctx->Ed448SignCb) { - void* ctx = wolfSSL_GetEd448SignCtx(ssl); - ret = ssl->ctx->Ed448SignCb(ssl, in, inSz, out, outSz, keyBuf, keySz, - ctx); - } - else -#endif /* HAVE_PK_CALLBACKS */ - { - ret = wc_ed448_sign_msg(in, inSz, out, outSz, key, NULL, 0); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("Ed448Sign", ret); - - return ret; -} - -/* Verify the data using EdDSA and key using Ed448. - * - * ssl SSL object. - * in Signature data. - * inSz Length of the signature data in bytes. - * msg Message to verify. - * outSz Length of message in bytes. - * key The public Ed448 key data. - * keySz The length of the private key data in bytes. - * ctx The callback context. - * returns 0 on success, otherwise the value is an error. - */ -int Ed448Verify(WOLFSSL* ssl, const byte* in, word32 inSz, const byte* msg, - word32 msgSz, ed448_key* key, buffer* keyBufInfo) -{ - int ret; -#ifdef HAVE_PK_CALLBACKS - const byte* keyBuf = NULL; - word32 keySz = 0; - - if (keyBufInfo) { - keyBuf = keyBufInfo->buffer; - keySz = keyBufInfo->length; - } -#endif - - (void)ssl; - (void)keyBufInfo; - - WOLFSSL_ENTER("Ed448Verify"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->Ed448VerifyCb) { - void* ctx = wolfSSL_GetEd448VerifyCtx(ssl); - ret = ssl->ctx->Ed448VerifyCb(ssl, in, inSz, msg, msgSz, keyBuf, keySz, - &ssl->eccVerifyRes, ctx); - } - else -#endif /* HAVE_PK_CALLBACKS */ - { - ret = wc_ed448_verify_msg(in, inSz, msg, msgSz, &ssl->eccVerifyRes, key, - NULL, 0); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } - else -#endif /* WOLFSSL_ASYNC_CRYPT */ - { - ret = (ret != 0 || ssl->eccVerifyRes == 0) ? VERIFY_SIGN_ERROR : 0; - } - - WOLFSSL_LEAVE("Ed448Verify", ret); - - return ret; -} -#endif /* HAVE_ED448 */ - -#ifdef HAVE_CURVE448 -#ifdef HAVE_PK_CALLBACKS - /* Gets X448 key for shared secret callback testing - * Client side: returns peer key - * Server side: returns private key - */ - static int X448GetKey(WOLFSSL* ssl, curve448_key** otherKey) - { - int ret = NO_PEER_KEY; - struct curve448_key* tmpKey = NULL; - - if (ssl == NULL || otherKey == NULL) { - return BAD_FUNC_ARG; - } - - if (ssl->options.side == WOLFSSL_CLIENT_END) { - if (!ssl->peerX448Key || !ssl->peerX448KeyPresent) { - return NO_PEER_KEY; - } - tmpKey = (struct curve448_key*)ssl->peerX448Key; - } - else if (ssl->options.side == WOLFSSL_SERVER_END) { - if (!ssl->eccTempKeyPresent) { - return NO_PRIVATE_KEY; - } - tmpKey = (struct curve448_key*)ssl->eccTempKey; - } - - if (tmpKey) { - *otherKey = (curve448_key *)tmpKey; - ret = 0; - } - - return ret; - } -#endif /* HAVE_PK_CALLBACKS */ - -static int X448SharedSecret(WOLFSSL* ssl, curve448_key* priv_key, - curve448_key* pub_key, byte* pubKeyDer, - word32* pubKeySz, byte* out, word32* outlen, - int side) -{ - int ret; - - (void)ssl; - (void)pubKeyDer; - (void)pubKeySz; - (void)side; - - WOLFSSL_ENTER("X448SharedSecret"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &priv_key->asyncDev, WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->X448SharedSecretCb) { - curve448_key* otherKey = NULL; - - ret = X448GetKey(ssl, &otherKey); - if (ret == 0) { - void* ctx = wolfSSL_GetX448SharedSecretCtx(ssl); - ret = ssl->ctx->X448SharedSecretCb(ssl, otherKey, pubKeyDer, - pubKeySz, out, outlen, side, ctx); - } - } - else -#endif - { - ret = wc_curve448_shared_secret_ex(priv_key, pub_key, out, outlen, - EC448_LITTLE_ENDIAN); - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &priv_key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("X448SharedSecret", ret); - - return ret; -} - -static int X448MakeKey(WOLFSSL* ssl, curve448_key* key, curve448_key* peer) -{ - int ret = 0; - - (void)peer; - - WOLFSSL_ENTER("X448MakeKey"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &key->asyncDev, WC_ASYNC_FLAG_NONE); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->X448KeyGenCb) { - void* ctx = wolfSSL_GetX448KeyGenCtx(ssl); - ret = ssl->ctx->X448KeyGenCb(ssl, key, CURVE448_KEY_SIZE, ctx); - } - else -#endif - { - ret = wc_curve448_make_key(ssl->rng, CURVE448_KEY_SIZE, key); - } - - if (ret == 0) { - ssl->ecdhCurveOID = ECC_X448_OID; - #if defined(WOLFSSL_TLS13) || defined(HAVE_FFDHE) - ssl->namedGroup = 0; - #endif - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &key->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("X448MakeKey", ret); - - return ret; -} -#endif /* HAVE_CURVE448 */ - -#if !defined(NO_CERTS) || !defined(NO_PSK) -#if !defined(NO_DH) - -int DhGenKeyPair(WOLFSSL* ssl, DhKey* dhKey, - byte* priv, word32* privSz, - byte* pub, word32* pubSz) -{ - int ret; - - WOLFSSL_ENTER("DhGenKeyPair"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &dhKey->asyncDev, WC_ASYNC_FLAG_NONE); - if (ret != 0) - return ret; -#endif - - ret = wc_DhGenerateKeyPair(dhKey, ssl->rng, priv, privSz, pub, pubSz); - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &dhKey->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("DhGenKeyPair", ret); - - return ret; -} - -int DhAgree(WOLFSSL* ssl, DhKey* dhKey, - const byte* priv, word32 privSz, - const byte* otherPub, word32 otherPubSz, - byte* agree, word32* agreeSz) -{ - int ret; - - (void)ssl; - - WOLFSSL_ENTER("DhAgree"); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &dhKey->asyncDev, WC_ASYNC_FLAG_NONE); - if (ret != 0) - return ret; -#endif - -#ifdef HAVE_PK_CALLBACKS - if (ssl->ctx->DhAgreeCb) { - void* ctx = wolfSSL_GetDhAgreeCtx(ssl); - - WOLFSSL_MSG("Calling DhAgree Callback Function"); - ret = ssl->ctx->DhAgreeCb(ssl, dhKey, priv, privSz, - otherPub, otherPubSz, agree, agreeSz, ctx); - } - else -#endif - { -#if !defined(HAVE_FIPS) && !defined(HAVE_SELFTEST) - ret = wc_DhCheckPubValue(ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length, otherPub, otherPubSz); - if (ret != 0) { - #ifdef OPENSSL_EXTRA - SendAlert(ssl, alert_fatal, illegal_parameter); - #endif - } - else -#endif - { - ret = wc_DhAgree(dhKey, agree, agreeSz, priv, privSz, otherPub, - otherPubSz); - } - } - - /* Handle async pending response */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &dhKey->asyncDev); - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - WOLFSSL_LEAVE("DhAgree", ret); - - return ret; -} -#endif /* !NO_DH */ -#endif /* !NO_CERTS || !NO_PSK */ - -#endif /* !WOLFSSL_NO_TLS12 */ - - -#ifdef HAVE_PK_CALLBACKS -int wolfSSL_IsPrivatePkSet(WOLFSSL* ssl) -{ - int pkcbset = 0; - (void)ssl; - -#if defined(HAVE_ECC) || defined(HAVE_ED25519) || defined(HAVE_ED448) || \ - !defined(NO_RSA) - if (0 - #ifdef HAVE_ECC - || (ssl->ctx->EccSignCb != NULL && - ssl->buffers.keyType == ecc_dsa_sa_algo) - #endif - #ifdef HAVE_ED25519 - || (ssl->ctx->Ed25519SignCb != NULL && - ssl->buffers.keyType == ed25519_sa_algo) - #endif - #ifdef HAVE_ED448 - || (ssl->ctx->Ed448SignCb != NULL && - ssl->buffers.keyType == ed448_sa_algo) - #endif - #ifndef NO_RSA - || (ssl->ctx->RsaSignCb != NULL && ssl->buffers.keyType == rsa_sa_algo) - || (ssl->ctx->RsaDecCb != NULL && ssl->buffers.keyType == rsa_kea) - #ifdef WC_RSA_PSS - || (ssl->ctx->RsaPssSignCb != NULL && - ssl->buffers.keyType == rsa_pss_sa_algo) - #endif - #endif - ) { - pkcbset = 1; - } -#endif - return pkcbset; -} - -int wolfSSL_CTX_IsPrivatePkSet(WOLFSSL_CTX* ctx) -{ - int pkcbset = 0; - (void)ctx; -#if defined(HAVE_ECC) || defined(HAVE_ED25519) || defined(HAVE_ED448) || \ - !defined(NO_RSA) - if (0 - #ifdef HAVE_ECC - || ctx->EccSignCb != NULL - #endif - #ifdef HAVE_ED25519 - || ctx->Ed25519SignCb != NULL - #endif - #ifdef HAVE_ED448 - || ctx->Ed448SignCb != NULL - #endif - #ifndef NO_RSA - || ctx->RsaSignCb != NULL - || ctx->RsaDecCb != NULL - #ifdef WC_RSA_PSS - || ctx->RsaPssSignCb != NULL - #endif - #endif - ) { - pkcbset = 1; - } -#endif - return pkcbset; -} -#endif /* HAVE_PK_CALLBACKS */ - - -int InitSSL_Suites(WOLFSSL* ssl) -{ - int keySz = 0; - byte havePSK = 0; - byte haveAnon = 0; - byte haveRSA = 0; - byte haveMcast = 0; - - (void)haveAnon; /* Squash unused var warnings */ - (void)haveMcast; - - if (!ssl) - return BAD_FUNC_ARG; - -#ifndef NO_RSA - haveRSA = 1; -#endif -#ifndef NO_PSK - havePSK = (byte)ssl->options.havePSK; -#endif /* NO_PSK */ -#ifdef HAVE_ANON - haveAnon = (byte)ssl->options.haveAnon; -#endif /* HAVE_ANON*/ -#ifdef WOLFSSL_MULTICAST - haveMcast = (byte)ssl->options.haveMcast; -#endif /* WOLFSSL_MULTICAST */ - -#ifdef WOLFSSL_EARLY_DATA - if (ssl->options.side == WOLFSSL_SERVER_END) - ssl->options.maxEarlyDataSz = ssl->ctx->maxEarlyDataSz; -#endif -#if !defined(WOLFSSL_NO_CLIENT_AUTH) && \ - ((defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH)) || \ - (defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH))) - ssl->options.cacheMessages = ssl->options.side == WOLFSSL_SERVER_END || - ssl->buffers.keyType == ed25519_sa_algo || - ssl->buffers.keyType == ed448_sa_algo; -#endif - -#ifndef NO_CERTS - keySz = ssl->buffers.keySz; -#endif - - /* make sure server has DH parms, and add PSK if there, add NTRU too */ - if (ssl->options.side == WOLFSSL_SERVER_END) { - InitSuites(ssl->suites, ssl->version, keySz, haveRSA, havePSK, - ssl->options.haveDH, ssl->options.haveNTRU, - ssl->options.haveECDSAsig, ssl->options.haveECC, - ssl->options.haveStaticECC, ssl->options.side); - } - else { - InitSuites(ssl->suites, ssl->version, keySz, haveRSA, havePSK, - TRUE, ssl->options.haveNTRU, - ssl->options.haveECDSAsig, ssl->options.haveECC, - ssl->options.haveStaticECC, ssl->options.side); - } - -#if !defined(NO_CERTS) && !defined(WOLFSSL_SESSION_EXPORT) - /* make sure server has cert and key unless using PSK, Anon, or - * Multicast. This should be true even if just switching ssl ctx */ - if (ssl->options.side == WOLFSSL_SERVER_END && - !havePSK && !haveAnon && !haveMcast) { - - /* server certificate must be loaded */ - if (!ssl->buffers.certificate || !ssl->buffers.certificate->buffer) { - WOLFSSL_MSG("Server missing certificate"); - return NO_PRIVATE_KEY; - } - - /* allow no private key if using PK callbacks and CB is set */ - #ifdef HAVE_PK_CALLBACKS - if (wolfSSL_CTX_IsPrivatePkSet(ssl->ctx)) { - WOLFSSL_MSG("Using PK for server private key"); - } - else - #endif - if (!ssl->buffers.key || !ssl->buffers.key->buffer) { - WOLFSSL_MSG("Server missing private key"); - return NO_PRIVATE_KEY; - } - } -#endif - - return WOLFSSL_SUCCESS; -} - -/* returns new reference count. Arg incr positive=up or negative=down */ -int SSL_CTX_RefCount(WOLFSSL_CTX* ctx, int incr) -{ - int refCount; - - if (ctx == NULL) { - return BAD_FUNC_ARG; - } - - if (wc_LockMutex(&ctx->countMutex) != 0) { - WOLFSSL_MSG("Couldn't lock CTX count mutex"); - return BAD_MUTEX_E; - } - - ctx->refCount += incr; - /* make sure refCount is never negative */ - if (ctx->refCount < 0) { - ctx->refCount = 0; - } - refCount = ctx->refCount; - - wc_UnLockMutex(&ctx->countMutex); - - return refCount; -} - -/* This function inherits a WOLFSSL_CTX's fields into an SSL object. - It is used during initialization and to switch an ssl's CTX with - wolfSSL_Set_SSL_CTX. Requires ssl->suites alloc and ssl-arrays with PSK - unless writeDup is on. - - ssl object to initialize - ctx parent factory - writeDup flag indicating this is a write dup only - - WOLFSSL_SUCCESS return value on success */ -int SetSSL_CTX(WOLFSSL* ssl, WOLFSSL_CTX* ctx, int writeDup) -{ - int ret; - byte newSSL; - - if (!ssl || !ctx) - return BAD_FUNC_ARG; - -#ifndef SINGLE_THREADED - if (ssl->suites == NULL && !writeDup) - return BAD_FUNC_ARG; -#endif - - newSSL = ssl->ctx == NULL; /* Assign after null check */ - -#ifndef NO_PSK - if (ctx->server_hint[0] && ssl->arrays == NULL && !writeDup) { - return BAD_FUNC_ARG; /* needed for copy below */ - } -#endif - - /* decrement previous CTX reference count if exists. - * This should only happen if switching ctxs!*/ - if (!newSSL) { - WOLFSSL_MSG("freeing old ctx to decrement reference count. Switching ctx."); - wolfSSL_CTX_free(ssl->ctx); - } - - /* increment CTX reference count */ - if ((ret = SSL_CTX_RefCount(ctx, 1)) < 0) { - return ret; - } - ret = WOLFSSL_SUCCESS; /* set default ret */ - - ssl->ctx = ctx; /* only for passing to calls, options could change */ - ssl->version = ctx->method->version; - -#ifdef HAVE_ECC - ssl->eccTempKeySz = ctx->eccTempKeySz; - ssl->ecdhCurveOID = ctx->ecdhCurveOID; -#endif -#if defined(HAVE_ECC) || defined(HAVE_ED25519) || defined(HAVE_ED448) - ssl->pkCurveOID = ctx->pkCurveOID; -#endif - -#ifdef OPENSSL_EXTRA - ssl->options.mask = ctx->mask; - ssl->CBIS = ctx->CBIS; -#endif - ssl->timeout = ctx->timeout; - ssl->verifyCallback = ctx->verifyCallback; - ssl->options.side = ctx->method->side; - ssl->options.downgrade = ctx->method->downgrade; - ssl->options.minDowngrade = ctx->minDowngrade; - - ssl->options.haveDH = ctx->haveDH; - ssl->options.haveNTRU = ctx->haveNTRU; - ssl->options.haveECDSAsig = ctx->haveECDSAsig; - ssl->options.haveECC = ctx->haveECC; - ssl->options.haveStaticECC = ctx->haveStaticECC; - -#ifndef NO_PSK - ssl->options.havePSK = ctx->havePSK; - ssl->options.client_psk_cb = ctx->client_psk_cb; - ssl->options.server_psk_cb = ctx->server_psk_cb; -#ifdef WOLFSSL_TLS13 - ssl->options.client_psk_tls13_cb = ctx->client_psk_tls13_cb; - ssl->options.server_psk_tls13_cb = ctx->server_psk_tls13_cb; -#endif -#endif /* NO_PSK */ -#ifdef WOLFSSL_EARLY_DATA - if (ssl->options.side == WOLFSSL_SERVER_END) - ssl->options.maxEarlyDataSz = ctx->maxEarlyDataSz; -#endif - -#ifdef HAVE_ANON - ssl->options.haveAnon = ctx->haveAnon; -#endif -#ifndef NO_DH - ssl->options.minDhKeySz = ctx->minDhKeySz; - ssl->options.maxDhKeySz = ctx->maxDhKeySz; -#endif -#ifndef NO_RSA - ssl->options.minRsaKeySz = ctx->minRsaKeySz; -#endif -#ifdef HAVE_ECC - ssl->options.minEccKeySz = ctx->minEccKeySz; -#endif -#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - ssl->options.verifyDepth = ctx->verifyDepth; -#endif - - ssl->options.sessionCacheOff = ctx->sessionCacheOff; - ssl->options.sessionCacheFlushOff = ctx->sessionCacheFlushOff; -#ifdef HAVE_EXT_CACHE - ssl->options.internalCacheOff = ctx->internalCacheOff; -#endif - - ssl->options.verifyPeer = ctx->verifyPeer; - ssl->options.verifyNone = ctx->verifyNone; - ssl->options.failNoCert = ctx->failNoCert; - ssl->options.failNoCertxPSK = ctx->failNoCertxPSK; - ssl->options.sendVerify = ctx->sendVerify; - - ssl->options.partialWrite = ctx->partialWrite; - ssl->options.quietShutdown = ctx->quietShutdown; - ssl->options.groupMessages = ctx->groupMessages; - -#ifndef NO_DH - #if !defined(WOLFSSL_OLD_PRIME_CHECK) && !defined(HAVE_FIPS) && \ - !defined(HAVE_SELFTEST) - ssl->options.dhKeyTested = ctx->dhKeyTested; - #endif - ssl->buffers.serverDH_P = ctx->serverDH_P; - ssl->buffers.serverDH_G = ctx->serverDH_G; -#endif - -#ifndef NO_CERTS - /* ctx still owns certificate, certChain, key, dh, and cm */ - ssl->buffers.certificate = ctx->certificate; - ssl->buffers.certChain = ctx->certChain; -#ifdef WOLFSSL_TLS13 - ssl->buffers.certChainCnt = ctx->certChainCnt; -#endif - ssl->buffers.key = ctx->privateKey; - ssl->buffers.keyType = ctx->privateKeyType; - ssl->buffers.keyId = ctx->privateKeyId; - ssl->buffers.keySz = ctx->privateKeySz; - ssl->buffers.keyDevId = ctx->privateKeyDevId; -#endif -#if !defined(WOLFSSL_NO_CLIENT_AUTH) && \ - ((defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH)) || \ - (defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH))) - ssl->options.cacheMessages = ssl->options.side == WOLFSSL_SERVER_END || - ssl->buffers.keyType == ed25519_sa_algo || - ssl->buffers.keyType == ed448_sa_algo; -#endif - - -#ifdef WOLFSSL_ASYNC_CRYPT - ssl->devId = ctx->devId; -#endif - - if (writeDup == 0) { -#ifndef NO_PSK - if (ctx->server_hint[0]) { /* set in CTX */ - XSTRNCPY(ssl->arrays->server_hint, ctx->server_hint, - sizeof(ssl->arrays->server_hint)); - ssl->arrays->server_hint[MAX_PSK_ID_LEN] = '\0'; /* null term */ - } -#endif /* NO_PSK */ - - if (ctx->suites) { -#ifndef SINGLE_THREADED - *ssl->suites = *ctx->suites; -#else - ssl->suites = ctx->suites; -#endif - } - else { - XMEMSET(ssl->suites, 0, sizeof(Suites)); - } - - if (ssl->options.side != WOLFSSL_NEITHER_END) { - /* Defer initializing suites until accept or connect */ - ret = InitSSL_Suites(ssl); - } - } /* writeDup check */ - -#ifdef WOLFSSL_SESSION_EXPORT - #ifdef WOLFSSL_DTLS - ssl->dtls_export = ctx->dtls_export; /* export function for session */ - #endif -#endif - - ssl->CBIORecv = ctx->CBIORecv; - ssl->CBIOSend = ctx->CBIOSend; -#ifdef OPENSSL_EXTRA - ssl->readAhead = ctx->readAhead; -#endif - ssl->verifyDepth = ctx->verifyDepth; - - return ret; -} - -int InitHandshakeHashes(WOLFSSL* ssl) -{ - int ret; - - /* make sure existing handshake hashes are free'd */ - if (ssl->hsHashes != NULL) { - FreeHandshakeHashes(ssl); - } - - /* allocate handshake hashes */ - ssl->hsHashes = (HS_Hashes*)XMALLOC(sizeof(HS_Hashes), ssl->heap, - DYNAMIC_TYPE_HASHES); - if (ssl->hsHashes == NULL) { - WOLFSSL_MSG("HS_Hashes Memory error"); - return MEMORY_E; - } - XMEMSET(ssl->hsHashes, 0, sizeof(HS_Hashes)); - -#ifndef NO_OLD_TLS -#ifndef NO_MD5 - ret = wc_InitMd5_ex(&ssl->hsHashes->hashMd5, ssl->heap, ssl->devId); - if (ret != 0) - return ret; - #if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB) - wc_Md5SetFlags(&ssl->hsHashes->hashMd5, WC_HASH_FLAG_WILLCOPY); - #endif -#endif -#ifndef NO_SHA - ret = wc_InitSha_ex(&ssl->hsHashes->hashSha, ssl->heap, ssl->devId); - if (ret != 0) - return ret; - #if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB) - wc_ShaSetFlags(&ssl->hsHashes->hashSha, WC_HASH_FLAG_WILLCOPY); - #endif -#endif -#endif /* !NO_OLD_TLS */ -#ifndef NO_SHA256 - ret = wc_InitSha256_ex(&ssl->hsHashes->hashSha256, ssl->heap, ssl->devId); - if (ret != 0) - return ret; - #if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB) - wc_Sha256SetFlags(&ssl->hsHashes->hashSha256, WC_HASH_FLAG_WILLCOPY); - #endif -#endif -#ifdef WOLFSSL_SHA384 - ret = wc_InitSha384_ex(&ssl->hsHashes->hashSha384, ssl->heap, ssl->devId); - if (ret != 0) - return ret; - #if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB) - wc_Sha384SetFlags(&ssl->hsHashes->hashSha384, WC_HASH_FLAG_WILLCOPY); - #endif -#endif -#ifdef WOLFSSL_SHA512 - ret = wc_InitSha512_ex(&ssl->hsHashes->hashSha512, ssl->heap, ssl->devId); - if (ret != 0) - return ret; - #if defined(WOLFSSL_HASH_FLAGS) || defined(WOLF_CRYPTO_CB) - wc_Sha512SetFlags(&ssl->hsHashes->hashSha512, WC_HASH_FLAG_WILLCOPY); - #endif -#endif - - return ret; -} - -void FreeHandshakeHashes(WOLFSSL* ssl) -{ - if (ssl->hsHashes) { -#ifndef NO_OLD_TLS - #ifndef NO_MD5 - wc_Md5Free(&ssl->hsHashes->hashMd5); - #endif - #ifndef NO_SHA - wc_ShaFree(&ssl->hsHashes->hashSha); - #endif -#endif /* !NO_OLD_TLS */ - #ifndef NO_SHA256 - wc_Sha256Free(&ssl->hsHashes->hashSha256); - #endif - #ifdef WOLFSSL_SHA384 - wc_Sha384Free(&ssl->hsHashes->hashSha384); - #endif - #ifdef WOLFSSL_SHA512 - wc_Sha512Free(&ssl->hsHashes->hashSha512); - #endif - #if (defined(HAVE_ED25519) || defined(HAVE_ED448)) && \ - !defined(WOLFSSL_NO_CLIENT_AUTH) - if (ssl->hsHashes->messages != NULL) { - XFREE(ssl->hsHashes->messages, ssl->heap, DYNAMIC_TYPE_HASHES); - ssl->hsHashes->messages = NULL; - } - #endif - - XFREE(ssl->hsHashes, ssl->heap, DYNAMIC_TYPE_HASHES); - ssl->hsHashes = NULL; - } -} - - -/* init everything to 0, NULL, default values before calling anything that may - fail so that destructor has a "good" state to cleanup - - ssl object to initialize - ctx parent factory - writeDup flag indicating this is a write dup only - - 0 on success */ -int InitSSL(WOLFSSL* ssl, WOLFSSL_CTX* ctx, int writeDup) -{ - int ret; - - XMEMSET(ssl, 0, sizeof(WOLFSSL)); - -#if defined(WOLFSSL_STATIC_MEMORY) - if (ctx->heap != NULL) { - WOLFSSL_HEAP_HINT* ssl_hint; - WOLFSSL_HEAP_HINT* ctx_hint; - - /* avoid dereferencing a test value */ - #ifdef WOLFSSL_HEAP_TEST - if (ctx->heap == (void*)WOLFSSL_HEAP_TEST) { - ssl->heap = ctx->heap; - } - else { - #endif - ssl->heap = (WOLFSSL_HEAP_HINT*)XMALLOC(sizeof(WOLFSSL_HEAP_HINT), - ctx->heap, DYNAMIC_TYPE_SSL); - if (ssl->heap == NULL) { - return MEMORY_E; - } - XMEMSET(ssl->heap, 0, sizeof(WOLFSSL_HEAP_HINT)); - ssl_hint = ((WOLFSSL_HEAP_HINT*)(ssl->heap)); - ctx_hint = ((WOLFSSL_HEAP_HINT*)(ctx->heap)); - - /* lock and check IO count / handshake count */ - if (wc_LockMutex(&(ctx_hint->memory->memory_mutex)) != 0) { - WOLFSSL_MSG("Bad memory_mutex lock"); - XFREE(ssl->heap, ctx->heap, DYNAMIC_TYPE_SSL); - ssl->heap = NULL; /* free and set to NULL for IO counter */ - return BAD_MUTEX_E; - } - if (ctx_hint->memory->maxHa > 0 && - ctx_hint->memory->maxHa <= ctx_hint->memory->curHa) { - WOLFSSL_MSG("At max number of handshakes for static memory"); - wc_UnLockMutex(&(ctx_hint->memory->memory_mutex)); - XFREE(ssl->heap, ctx->heap, DYNAMIC_TYPE_SSL); - ssl->heap = NULL; /* free and set to NULL for IO counter */ - return MEMORY_E; - } - - if (ctx_hint->memory->maxIO > 0 && - ctx_hint->memory->maxIO <= ctx_hint->memory->curIO) { - WOLFSSL_MSG("At max number of IO allowed for static memory"); - wc_UnLockMutex(&(ctx_hint->memory->memory_mutex)); - XFREE(ssl->heap, ctx->heap, DYNAMIC_TYPE_SSL); - ssl->heap = NULL; /* free and set to NULL for IO counter */ - return MEMORY_E; - } - ctx_hint->memory->curIO++; - ctx_hint->memory->curHa++; - ssl_hint->memory = ctx_hint->memory; - ssl_hint->haFlag = 1; - wc_UnLockMutex(&(ctx_hint->memory->memory_mutex)); - - /* check if tracking stats */ - if (ctx_hint->memory->flag & WOLFMEM_TRACK_STATS) { - ssl_hint->stats = (WOLFSSL_MEM_CONN_STATS*)XMALLOC( - sizeof(WOLFSSL_MEM_CONN_STATS), ctx->heap, DYNAMIC_TYPE_SSL); - if (ssl_hint->stats == NULL) { - return MEMORY_E; - } - XMEMSET(ssl_hint->stats, 0, sizeof(WOLFSSL_MEM_CONN_STATS)); - } - - /* check if using fixed IO buffers */ - if (ctx_hint->memory->flag & WOLFMEM_IO_POOL_FIXED) { - if (wc_LockMutex(&(ctx_hint->memory->memory_mutex)) != 0) { - WOLFSSL_MSG("Bad memory_mutex lock"); - return BAD_MUTEX_E; - } - if (SetFixedIO(ctx_hint->memory, &(ssl_hint->inBuf)) != 1) { - wc_UnLockMutex(&(ctx_hint->memory->memory_mutex)); - return MEMORY_E; - } - if (SetFixedIO(ctx_hint->memory, &(ssl_hint->outBuf)) != 1) { - wc_UnLockMutex(&(ctx_hint->memory->memory_mutex)); - return MEMORY_E; - } - if (ssl_hint->outBuf == NULL || ssl_hint->inBuf == NULL) { - WOLFSSL_MSG("Not enough memory to create fixed IO buffers"); - wc_UnLockMutex(&(ctx_hint->memory->memory_mutex)); - return MEMORY_E; - } - wc_UnLockMutex(&(ctx_hint->memory->memory_mutex)); - } - #ifdef WOLFSSL_HEAP_TEST - } - #endif - } - else { - ssl->heap = ctx->heap; - } -#else - ssl->heap = ctx->heap; /* carry over user heap without static memory */ -#endif /* WOLFSSL_STATIC_MEMORY */ - - ssl->buffers.inputBuffer.buffer = ssl->buffers.inputBuffer.staticBuffer; - ssl->buffers.inputBuffer.bufferSize = STATIC_BUFFER_LEN; - - ssl->buffers.outputBuffer.buffer = ssl->buffers.outputBuffer.staticBuffer; - ssl->buffers.outputBuffer.bufferSize = STATIC_BUFFER_LEN; - -#ifdef KEEP_PEER_CERT - InitX509(&ssl->peerCert, 0, ssl->heap); -#endif - - ssl->rfd = -1; /* set to invalid descriptor */ - ssl->wfd = -1; - ssl->devId = ctx->devId; /* device for async HW (from wolfAsync_DevOpen) */ - - ssl->IOCB_ReadCtx = &ssl->rfd; /* prevent invalid pointer access if not */ - ssl->IOCB_WriteCtx = &ssl->wfd; /* correctly set */ - -#ifdef HAVE_NETX - ssl->IOCB_ReadCtx = &ssl->nxCtx; /* default NetX IO ctx, same for read */ - ssl->IOCB_WriteCtx = &ssl->nxCtx; /* and write */ -#elif defined(WOLFSSL_APACHE_MYNEWT) && !defined(WOLFSSL_LWIP) - ssl->mnCtx = mynewt_ctx_new(); - if(!ssl->mnCtx) { - return MEMORY_E; - } - ssl->IOCB_ReadCtx = ssl->mnCtx; /* default Mynewt IO ctx, same for read */ - ssl->IOCB_WriteCtx = ssl->mnCtx; /* and write */ -#elif defined (WOLFSSL_GNRC) - ssl->IOCB_ReadCtx = ssl->gnrcCtx; - ssl->IOCB_WriteCtx = ssl->gnrcCtx; -#endif - /* initialize states */ - ssl->options.serverState = NULL_STATE; - ssl->options.clientState = NULL_STATE; - ssl->options.connectState = CONNECT_BEGIN; - ssl->options.acceptState = ACCEPT_BEGIN; - ssl->options.handShakeState = NULL_STATE; - ssl->options.processReply = doProcessInit; - ssl->options.asyncState = TLS_ASYNC_BEGIN; - ssl->options.buildMsgState = BUILD_MSG_BEGIN; - ssl->encrypt.state = CIPHER_STATE_BEGIN; - ssl->decrypt.state = CIPHER_STATE_BEGIN; -#ifndef NO_DH - #if !defined(WOLFSSL_OLD_PRIME_CHECK) && !defined(HAVE_FIPS) && \ - !defined(HAVE_SELFTEST) - ssl->options.dhDoKeyTest = 1; - #endif -#endif - -#ifdef WOLFSSL_DTLS - #ifdef WOLFSSL_SCTP - ssl->options.dtlsSctp = ctx->dtlsSctp; - #endif - #if defined(WOLFSSL_SCTP) || defined(WOLFSSL_DTLS_MTU) - ssl->dtlsMtuSz = ctx->dtlsMtuSz; - ssl->dtls_expected_rx = ssl->dtlsMtuSz; - #else - ssl->dtls_expected_rx = MAX_MTU; - #endif - ssl->dtls_timeout_init = DTLS_TIMEOUT_INIT; - ssl->dtls_timeout_max = DTLS_TIMEOUT_MAX; - ssl->dtls_timeout = ssl->dtls_timeout_init; - ssl->buffers.dtlsCtx.rfd = -1; - ssl->buffers.dtlsCtx.wfd = -1; -#endif - -#ifndef WOLFSSL_AEAD_ONLY - #ifndef NO_OLD_TLS - ssl->hmac = SSL_hmac; /* default to SSLv3 */ - #elif !defined(WOLFSSL_NO_TLS12) - ssl->hmac = TLS_hmac; - #endif -#endif - - - ssl->cipher.ssl = ssl; - -#ifdef HAVE_EXTENDED_MASTER - ssl->options.haveEMS = ctx->haveEMS; -#endif - ssl->options.useClientOrder = ctx->useClientOrder; - ssl->options.mutualAuth = ctx->mutualAuth; - -#ifdef WOLFSSL_TLS13 - #ifdef HAVE_SESSION_TICKET - ssl->options.noTicketTls13 = ctx->noTicketTls13; - #endif - ssl->options.noPskDheKe = ctx->noPskDheKe; - #if defined(WOLFSSL_POST_HANDSHAKE_AUTH) - ssl->options.postHandshakeAuth = ctx->postHandshakeAuth; - #endif - - if (ctx->numGroups > 0) { - XMEMCPY(ssl->group, ctx->group, sizeof(*ctx->group) * ctx->numGroups); - ssl->numGroups = ctx->numGroups; - } -#endif - -#ifdef HAVE_TLS_EXTENSIONS -#ifdef HAVE_MAX_FRAGMENT - ssl->max_fragment = MAX_RECORD_SIZE; -#endif -#ifdef HAVE_ALPN - ssl->alpn_client_list = NULL; - #if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY) - ssl->alpnSelect = ctx->alpnSelect; - ssl->alpnSelectArg = ctx->alpnSelectArg; - #endif -#endif -#ifdef HAVE_SUPPORTED_CURVES - ssl->options.userCurves = ctx->userCurves; -#endif -#endif /* HAVE_TLS_EXTENSIONS */ - -#if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - ssl->options.disallowEncThenMac = ctx->disallowEncThenMac; -#endif - - /* default alert state (none) */ - ssl->alert_history.last_rx.code = -1; - ssl->alert_history.last_rx.level = -1; - ssl->alert_history.last_tx.code = -1; - ssl->alert_history.last_tx.level = -1; - -#ifdef OPENSSL_EXTRA - /* copy over application session context ID */ - ssl->sessionCtxSz = ctx->sessionCtxSz; - XMEMCPY(ssl->sessionCtx, ctx->sessionCtx, ctx->sessionCtxSz); - ssl->cbioFlag = ctx->cbioFlag; - -#endif - - InitCiphers(ssl); - InitCipherSpecs(&ssl->specs); - - /* all done with init, now can return errors, call other stuff */ - - if (!writeDup) { - /* arrays */ - ssl->arrays = (Arrays*)XMALLOC(sizeof(Arrays), ssl->heap, - DYNAMIC_TYPE_ARRAYS); - if (ssl->arrays == NULL) { - WOLFSSL_MSG("Arrays Memory error"); - return MEMORY_E; - } - XMEMSET(ssl->arrays, 0, sizeof(Arrays)); -#if defined(WOLFSSL_TLS13) || defined(WOLFSSL_SNIFFER) - ssl->arrays->preMasterSz = ENCRYPT_LEN; - ssl->arrays->preMasterSecret = (byte*)XMALLOC(ENCRYPT_LEN, ssl->heap, - DYNAMIC_TYPE_SECRET); - if (ssl->arrays->preMasterSecret == NULL) { - return MEMORY_E; - } - XMEMSET(ssl->arrays->preMasterSecret, 0, ENCRYPT_LEN); -#endif - -#ifdef OPENSSL_EXTRA - if ((ssl->param = (WOLFSSL_X509_VERIFY_PARAM*)XMALLOC( - sizeof(WOLFSSL_X509_VERIFY_PARAM), - ssl->heap, DYNAMIC_TYPE_OPENSSL)) == NULL) { - WOLFSSL_MSG("ssl->param memory error"); - return MEMORY_E; - } - XMEMSET(ssl->param, 0, sizeof(WOLFSSL_X509_VERIFY_PARAM)); -#endif - -#ifdef SINGLE_THREADED - if (ctx->suites == NULL) -#endif - { - /* suites */ - ssl->suites = (Suites*)XMALLOC(sizeof(Suites), ssl->heap, - DYNAMIC_TYPE_SUITES); - if (ssl->suites == NULL) { - WOLFSSL_MSG("Suites Memory error"); - return MEMORY_E; - } - #ifdef OPENSSL_ALL - ssl->suites->stack = NULL; - #endif -#ifdef SINGLE_THREADED - ssl->options.ownSuites = 1; -#endif - } -#ifdef SINGLE_THREADED - else { - ssl->options.ownSuites = 0; - } -#endif - } - - /* Initialize SSL with the appropriate fields from it's ctx */ - /* requires valid arrays and suites unless writeDup ing */ - if ((ret = SetSSL_CTX(ssl, ctx, writeDup)) != WOLFSSL_SUCCESS) - return ret; - - ssl->options.dtls = ssl->version.major == DTLS_MAJOR; - -#ifdef SINGLE_THREADED - ssl->rng = ctx->rng; /* CTX may have one, if so use it */ -#endif - - if (ssl->rng == NULL) { - /* RNG */ - ssl->rng = (WC_RNG*)XMALLOC(sizeof(WC_RNG), ssl->heap,DYNAMIC_TYPE_RNG); - if (ssl->rng == NULL) { - WOLFSSL_MSG("RNG Memory error"); - return MEMORY_E; - } - XMEMSET(ssl->rng, 0, sizeof(WC_RNG)); - ssl->options.weOwnRng = 1; - - /* FIPS RNG API does not accept a heap hint */ -#ifndef HAVE_FIPS - if ( (ret = wc_InitRng_ex(ssl->rng, ssl->heap, ssl->devId)) != 0) { - WOLFSSL_MSG("RNG Init error"); - return ret; - } -#else - if ( (ret = wc_InitRng(ssl->rng)) != 0) { - WOLFSSL_MSG("RNG Init error"); - return ret; - } -#endif - } - -#ifdef HAVE_WRITE_DUP - if (writeDup) { - /* all done */ - return 0; - } -#endif - - /* hsHashes */ - ret = InitHandshakeHashes(ssl); - if (ret != 0) - return ret; - -#if defined(WOLFSSL_DTLS) && !defined(NO_WOLFSSL_SERVER) - if (ssl->options.dtls && ssl->options.side == WOLFSSL_SERVER_END) { - ret = wolfSSL_DTLS_SetCookieSecret(ssl, NULL, 0); - if (ret != 0) { - WOLFSSL_MSG("DTLS Cookie Secret error"); - return ret; - } - } -#endif /* WOLFSSL_DTLS && !NO_WOLFSSL_SERVER */ - -#ifdef HAVE_SECRET_CALLBACK - ssl->sessionSecretCb = NULL; - ssl->sessionSecretCtx = NULL; -#ifdef WOLFSSL_TLS13 - ssl->tls13SecretCb = NULL; - ssl->tls13SecretCtx = NULL; -#endif -#endif - -#ifdef HAVE_SESSION_TICKET - ssl->session.ticket = ssl->session.staticTicket; -#endif - -#ifdef WOLFSSL_MULTICAST - if (ctx->haveMcast) { - int i; - - ssl->options.haveMcast = 1; - ssl->options.mcastID = ctx->mcastID; - - /* Force the state to look like handshake has completed. */ - /* Keying material is supplied externally. */ - ssl->options.serverState = SERVER_FINISHED_COMPLETE; - ssl->options.clientState = CLIENT_FINISHED_COMPLETE; - ssl->options.connectState = SECOND_REPLY_DONE; - ssl->options.acceptState = ACCEPT_THIRD_REPLY_DONE; - ssl->options.handShakeState = HANDSHAKE_DONE; - ssl->options.handShakeDone = 1; - - for (i = 0; i < WOLFSSL_DTLS_PEERSEQ_SZ; i++) - ssl->keys.peerSeq[i].peerId = INVALID_PEER_ID; - } -#endif - -#ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->options.side == WOLFSSL_CLIENT_END) { - int useSecureReneg = ssl->ctx->useSecureReneg; - /* use secure renegotiation by default (not recommend) */ - #ifdef WOLFSSL_SECURE_RENEGOTIATION_ON_BY_DEFAULT - useSecureReneg = 1; - #endif - if (useSecureReneg) { - ret = wolfSSL_UseSecureRenegotiation(ssl); - if (ret != WOLFSSL_SUCCESS) - return ret; - } - } -#endif /* HAVE_SECURE_RENEGOTIATION */ - - return 0; -} - - -/* free use of temporary arrays */ -void FreeArrays(WOLFSSL* ssl, int keep) -{ - if (ssl->arrays) { - if (keep) { - /* keeps session id for user retrieval */ - XMEMCPY(ssl->session.sessionID, ssl->arrays->sessionID, ID_LEN); - ssl->session.sessionIDSz = ssl->arrays->sessionIDSz; - } - if (ssl->arrays->preMasterSecret) { - XFREE(ssl->arrays->preMasterSecret, ssl->heap, DYNAMIC_TYPE_SECRET); - ssl->arrays->preMasterSecret = NULL; - } - XFREE(ssl->arrays->pendingMsg, ssl->heap, DYNAMIC_TYPE_ARRAYS); - ssl->arrays->pendingMsg = NULL; - ForceZero(ssl->arrays, sizeof(Arrays)); /* clear arrays struct */ - } - XFREE(ssl->arrays, ssl->heap, DYNAMIC_TYPE_ARRAYS); - ssl->arrays = NULL; -} - -void FreeKey(WOLFSSL* ssl, int type, void** pKey) -{ - if (ssl && pKey && *pKey) { - switch (type) { - #ifndef NO_RSA - case DYNAMIC_TYPE_RSA: - wc_FreeRsaKey((RsaKey*)*pKey); - break; - #endif /* ! NO_RSA */ - #ifdef HAVE_ECC - case DYNAMIC_TYPE_ECC: - wc_ecc_free((ecc_key*)*pKey); - break; - #endif /* HAVE_ECC */ - #ifdef HAVE_ED25519 - case DYNAMIC_TYPE_ED25519: - wc_ed25519_free((ed25519_key*)*pKey); - break; - #endif /* HAVE_ED25519 */ - #ifdef HAVE_CURVE25519 - case DYNAMIC_TYPE_CURVE25519: - wc_curve25519_free((curve25519_key*)*pKey); - break; - #endif /* HAVE_CURVE25519 */ - #ifdef HAVE_ED448 - case DYNAMIC_TYPE_ED448: - wc_ed448_free((ed448_key*)*pKey); - break; - #endif /* HAVE_ED448 */ - #ifdef HAVE_CURVE448 - case DYNAMIC_TYPE_CURVE448: - wc_curve448_free((curve448_key*)*pKey); - break; - #endif /* HAVE_CURVE448 */ - #ifndef NO_DH - case DYNAMIC_TYPE_DH: - wc_FreeDhKey((DhKey*)*pKey); - break; - #endif /* !NO_DH */ - default: - break; - } - XFREE(*pKey, ssl->heap, type); - - /* Reset pointer */ - *pKey = NULL; - } -} - -int AllocKey(WOLFSSL* ssl, int type, void** pKey) -{ - int ret = BAD_FUNC_ARG; - int sz = 0; - - if (ssl == NULL || pKey == NULL) { - return BAD_FUNC_ARG; - } - - /* Sanity check key destination */ - if (*pKey != NULL) { - WOLFSSL_MSG("Key already present!"); - return BAD_STATE_E; - } - - /* Determine size */ - switch (type) { - #ifndef NO_RSA - case DYNAMIC_TYPE_RSA: - sz = sizeof(RsaKey); - break; - #endif /* ! NO_RSA */ - #ifdef HAVE_ECC - case DYNAMIC_TYPE_ECC: - sz = sizeof(ecc_key); - break; - #endif /* HAVE_ECC */ - #ifdef HAVE_ED25519 - case DYNAMIC_TYPE_ED25519: - sz = sizeof(ed25519_key); - break; - #endif /* HAVE_ED25519 */ - #ifdef HAVE_CURVE25519 - case DYNAMIC_TYPE_CURVE25519: - sz = sizeof(curve25519_key); - break; - #endif /* HAVE_CURVE25519 */ - #ifdef HAVE_ED448 - case DYNAMIC_TYPE_ED448: - sz = sizeof(ed448_key); - break; - #endif /* HAVE_ED448 */ - #ifdef HAVE_CURVE448 - case DYNAMIC_TYPE_CURVE448: - sz = sizeof(curve448_key); - break; - #endif /* HAVE_CURVE448 */ - #ifndef NO_DH - case DYNAMIC_TYPE_DH: - sz = sizeof(DhKey); - break; - #endif /* !NO_DH */ - default: - return BAD_FUNC_ARG; - } - - if (sz == 0) { - return NOT_COMPILED_IN; - } - - /* Allocate memory for key */ - *pKey = XMALLOC(sz, ssl->heap, type); - if (*pKey == NULL) { - return MEMORY_E; - } - - /* Initialize key */ - switch (type) { - #ifndef NO_RSA - case DYNAMIC_TYPE_RSA: - ret = wc_InitRsaKey_ex((RsaKey*)*pKey, ssl->heap, ssl->devId); - break; - #endif /* ! NO_RSA */ - #ifdef HAVE_ECC - case DYNAMIC_TYPE_ECC: - ret = wc_ecc_init_ex((ecc_key*)*pKey, ssl->heap, ssl->devId); - break; - #endif /* HAVE_ECC */ - #ifdef HAVE_ED25519 - case DYNAMIC_TYPE_ED25519: - wc_ed25519_init((ed25519_key*)*pKey); - ret = 0; - break; - #endif /* HAVE_CURVE25519 */ - #ifdef HAVE_CURVE25519 - case DYNAMIC_TYPE_CURVE25519: - wc_curve25519_init((curve25519_key*)*pKey); - ret = 0; - break; - #endif /* HAVE_CURVE25519 */ - #ifdef HAVE_ED448 - case DYNAMIC_TYPE_ED448: - wc_ed448_init((ed448_key*)*pKey); - ret = 0; - break; - #endif /* HAVE_CURVE448 */ - #ifdef HAVE_CURVE448 - case DYNAMIC_TYPE_CURVE448: - wc_curve448_init((curve448_key*)*pKey); - ret = 0; - break; - #endif /* HAVE_CURVE448 */ - #ifndef NO_DH - case DYNAMIC_TYPE_DH: - ret = wc_InitDhKey_ex((DhKey*)*pKey, ssl->heap, ssl->devId); - break; - #endif /* !NO_DH */ - default: - return BAD_FUNC_ARG; - } - - /* On error free handshake key */ - if (ret != 0) { - FreeKey(ssl, type, pKey); - } - - return ret; -} - -#if !defined(NO_RSA) || defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_CURVE25519) || defined(HHAVE_ED448) || defined(HAVE_CURVE448) -static int ReuseKey(WOLFSSL* ssl, int type, void* pKey) -{ - int ret = 0; - - (void)ssl; - - switch (type) { - #ifndef NO_RSA - case DYNAMIC_TYPE_RSA: - wc_FreeRsaKey((RsaKey*)pKey); - ret = wc_InitRsaKey_ex((RsaKey*)pKey, ssl->heap, ssl->devId); - break; - #endif /* ! NO_RSA */ - #ifdef HAVE_ECC - case DYNAMIC_TYPE_ECC: - wc_ecc_free((ecc_key*)pKey); - ret = wc_ecc_init_ex((ecc_key*)pKey, ssl->heap, ssl->devId); - break; - #endif /* HAVE_ECC */ - #ifdef HAVE_ED25519 - case DYNAMIC_TYPE_ED25519: - wc_ed25519_free((ed25519_key*)pKey); - ret = wc_ed25519_init((ed25519_key*)pKey); - break; - #endif /* HAVE_CURVE25519 */ - #ifdef HAVE_CURVE25519 - case DYNAMIC_TYPE_CURVE25519: - wc_curve25519_free((curve25519_key*)pKey); - ret = wc_curve25519_init((curve25519_key*)pKey); - break; - #endif /* HAVE_CURVE25519 */ - #ifdef HAVE_ED448 - case DYNAMIC_TYPE_ED448: - wc_ed448_free((ed448_key*)pKey); - ret = wc_ed448_init((ed448_key*)pKey); - break; - #endif /* HAVE_CURVE448 */ - #ifdef HAVE_CURVE448 - case DYNAMIC_TYPE_CURVE448: - wc_curve448_free((curve448_key*)pKey); - ret = wc_curve448_init((curve448_key*)pKey); - break; - #endif /* HAVE_CURVE448 */ - #ifndef NO_DH - case DYNAMIC_TYPE_DH: - wc_FreeDhKey((DhKey*)pKey); - ret = wc_InitDhKey_ex((DhKey*)pKey, ssl->heap, ssl->devId); - break; - #endif /* !NO_DH */ - default: - return BAD_FUNC_ARG; - } - - return ret; -} -#endif - -void FreeKeyExchange(WOLFSSL* ssl) -{ - /* Cleanup signature buffer */ - if (ssl->buffers.sig.buffer) { - XFREE(ssl->buffers.sig.buffer, ssl->heap, DYNAMIC_TYPE_SIGNATURE); - ssl->buffers.sig.buffer = NULL; - ssl->buffers.sig.length = 0; - } - - /* Cleanup digest buffer */ - if (ssl->buffers.digest.buffer) { - XFREE(ssl->buffers.digest.buffer, ssl->heap, DYNAMIC_TYPE_DIGEST); - ssl->buffers.digest.buffer = NULL; - ssl->buffers.digest.length = 0; - } - - /* Free handshake key */ - FreeKey(ssl, ssl->hsType, &ssl->hsKey); - -#ifndef NO_DH - /* Free temp DH key */ - FreeKey(ssl, DYNAMIC_TYPE_DH, (void**)&ssl->buffers.serverDH_Key); -#endif - - /* Cleanup async */ -#ifdef WOLFSSL_ASYNC_CRYPT - if (ssl->async.freeArgs) { - ssl->async.freeArgs(ssl, ssl->async.args); - ssl->async.freeArgs = NULL; - } -#endif -} - - -/* Free up all memory used by Suites structure from WOLFSSL */ -void FreeSuites(WOLFSSL* ssl) -{ -#ifdef SINGLE_THREADED - if (ssl->options.ownSuites) -#endif - { - #ifdef OPENSSL_ALL - wolfSSL_sk_SSL_CIPHER_free(ssl->suites->stack); - #endif - XFREE(ssl->suites, ssl->heap, DYNAMIC_TYPE_SUITES); - } - ssl->suites = NULL; -} - - -/* In case holding SSL object in array and don't want to free actual ssl */ -void SSL_ResourceFree(WOLFSSL* ssl) -{ - /* Note: any resources used during the handshake should be released in the - * function FreeHandshakeResources(). Be careful with the special cases - * like the RNG which may optionally be kept for the whole session. (For - * example with the RNG, it isn't used beyond the handshake except when - * using stream ciphers where it is retained. */ - - FreeCiphers(ssl); - FreeArrays(ssl, 0); - FreeKeyExchange(ssl); - if (ssl->options.weOwnRng) { - wc_FreeRng(ssl->rng); - XFREE(ssl->rng, ssl->heap, DYNAMIC_TYPE_RNG); - } - FreeSuites(ssl); - FreeHandshakeHashes(ssl); - XFREE(ssl->buffers.domainName.buffer, ssl->heap, DYNAMIC_TYPE_DOMAIN); - - /* clear keys struct after session */ - ForceZero(&ssl->keys, sizeof(Keys)); - -#ifdef WOLFSSL_TLS13 - if (ssl->options.tls1_3) { - ForceZero(&ssl->clientSecret, sizeof(ssl->clientSecret)); - ForceZero(&ssl->serverSecret, sizeof(ssl->serverSecret)); - } -#endif - -#ifndef NO_DH - if (ssl->buffers.serverDH_Priv.buffer) { - ForceZero(ssl->buffers.serverDH_Priv.buffer, - ssl->buffers.serverDH_Priv.length); - } - XFREE(ssl->buffers.serverDH_Priv.buffer, ssl->heap, DYNAMIC_TYPE_PRIVATE_KEY); - XFREE(ssl->buffers.serverDH_Pub.buffer, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - /* parameters (p,g) may be owned by ctx */ - if (ssl->buffers.weOwnDH) { - XFREE(ssl->buffers.serverDH_G.buffer, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - XFREE(ssl->buffers.serverDH_P.buffer, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - } -#endif /* !NO_DH */ -#ifndef NO_CERTS - ssl->keepCert = 0; /* make sure certificate is free'd */ - wolfSSL_UnloadCertsKeys(ssl); -#endif -#ifndef NO_RSA - FreeKey(ssl, DYNAMIC_TYPE_RSA, (void**)&ssl->peerRsaKey); - ssl->peerRsaKeyPresent = 0; -#endif -#ifdef WOLFSSL_RENESAS_TSIP_TLS - XFREE(ssl->peerTsipEncRsaKeyIndex, ssl->heap, DYNAMIC_TYPE_RSA); -#endif - if (ssl->buffers.inputBuffer.dynamicFlag) - ShrinkInputBuffer(ssl, FORCED_FREE); - if (ssl->buffers.outputBuffer.dynamicFlag) - ShrinkOutputBuffer(ssl); -#if defined(WOLFSSL_SEND_HRR_COOKIE) && !defined(NO_WOLFSSL_SERVER) - XFREE(ssl->buffers.tls13CookieSecret.buffer, ssl->heap, - DYNAMIC_TYPE_COOKIE_PWD); -#endif -#ifdef WOLFSSL_DTLS - DtlsMsgPoolReset(ssl); - if (ssl->dtls_rx_msg_list != NULL) { - DtlsMsgListDelete(ssl->dtls_rx_msg_list, ssl->heap); - ssl->dtls_rx_msg_list = NULL; - ssl->dtls_rx_msg_list_sz = 0; - } - XFREE(ssl->buffers.dtlsCtx.peer.sa, ssl->heap, DYNAMIC_TYPE_SOCKADDR); - ssl->buffers.dtlsCtx.peer.sa = NULL; -#ifndef NO_WOLFSSL_SERVER - XFREE(ssl->buffers.dtlsCookieSecret.buffer, ssl->heap, - DYNAMIC_TYPE_COOKIE_PWD); -#endif -#endif /* WOLFSSL_DTLS */ -#ifdef OPENSSL_EXTRA - if (ssl->biord != ssl->biowr) /* only free write if different */ - wolfSSL_BIO_free(ssl->biowr); - wolfSSL_BIO_free(ssl->biord); /* always free read bio */ - ssl->biowr = NULL; - ssl->biord = NULL; -#endif -#ifdef HAVE_LIBZ - FreeStreams(ssl); -#endif -#ifdef HAVE_ECC - FreeKey(ssl, DYNAMIC_TYPE_ECC, (void**)&ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; - FreeKey(ssl, DYNAMIC_TYPE_ECC, (void**)&ssl->peerEccDsaKey); - ssl->peerEccDsaKeyPresent = 0; -#endif -#if defined(HAVE_ECC) || defined(HAVE_CURVE25519) ||defined(HAVE_CURVE448) - { - int dtype = 0; - #ifdef HAVE_ECC - dtype = DYNAMIC_TYPE_ECC; - #endif - #ifdef HAVE_CURVE25519 - if (ssl->peerX25519KeyPresent - #ifdef HAVE_ECC - || ssl->eccTempKeyPresent == DYNAMIC_TYPE_CURVE25519 - #endif /* HAVE_ECC */ - ) - { - dtype = DYNAMIC_TYPE_CURVE25519; - } - #endif /* HAVE_CURVE25519 */ - #ifdef HAVE_CURVE448 - if (ssl->peerX448KeyPresent - #ifdef HAVE_ECC - || ssl->eccTempKeyPresent == DYNAMIC_TYPE_CURVE448 - #endif /* HAVE_ECC */ - ) - { - dtype = DYNAMIC_TYPE_CURVE448; - } - #endif /* HAVE_CURVE448 */ - FreeKey(ssl, dtype, (void**)&ssl->eccTempKey); - ssl->eccTempKeyPresent = 0; - } -#endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ -#ifdef HAVE_CURVE25519 - FreeKey(ssl, DYNAMIC_TYPE_CURVE25519, (void**)&ssl->peerX25519Key); - ssl->peerX25519KeyPresent = 0; -#endif -#ifdef HAVE_ED25519 - FreeKey(ssl, DYNAMIC_TYPE_ED25519, (void**)&ssl->peerEd25519Key); - ssl->peerEd25519KeyPresent = 0; - #ifdef HAVE_PK_CALLBACKS - if (ssl->buffers.peerEd25519Key.buffer != NULL) { - XFREE(ssl->buffers.peerEd25519Key.buffer, ssl->heap, - DYNAMIC_TYPE_ED25519); - ssl->buffers.peerEd25519Key.buffer = NULL; - } - #endif -#endif -#ifdef HAVE_CURVE448 - FreeKey(ssl, DYNAMIC_TYPE_CURVE448, (void**)&ssl->peerX448Key); - ssl->peerX448KeyPresent = 0; -#endif -#ifdef HAVE_ED448 - FreeKey(ssl, DYNAMIC_TYPE_ED448, (void**)&ssl->peerEd448Key); - ssl->peerEd448KeyPresent = 0; - #ifdef HAVE_PK_CALLBACKS - if (ssl->buffers.peerEd448Key.buffer != NULL) { - XFREE(ssl->buffers.peerEd448Key.buffer, ssl->heap, - DYNAMIC_TYPE_ED448); - ssl->buffers.peerEd448Key.buffer = NULL; - } - #endif -#endif -#ifdef HAVE_PK_CALLBACKS - #ifdef HAVE_ECC - XFREE(ssl->buffers.peerEccDsaKey.buffer, ssl->heap, DYNAMIC_TYPE_ECC); - #endif /* HAVE_ECC */ - #ifndef NO_RSA - XFREE(ssl->buffers.peerRsaKey.buffer, ssl->heap, DYNAMIC_TYPE_RSA); - #endif /* NO_RSA */ -#endif /* HAVE_PK_CALLBACKS */ -#ifdef HAVE_TLS_EXTENSIONS - TLSX_FreeAll(ssl->extensions, ssl->heap); - -#ifdef HAVE_ALPN - if (ssl->alpn_client_list != NULL) { - XFREE(ssl->alpn_client_list, ssl->heap, DYNAMIC_TYPE_ALPN); - ssl->alpn_client_list = NULL; - } -#endif -#endif /* HAVE_TLS_EXTENSIONS */ -#if defined(WOLFSSL_APACHE_MYNEWT) && !defined(WOLFSSL_LWIP) - if (ssl->mnCtx) { - mynewt_ctx_clear(ssl->mnCtx); - ssl->mnCtx = NULL; - } -#endif -#ifdef HAVE_NETX - if (ssl->nxCtx.nxPacket) - nx_packet_release(ssl->nxCtx.nxPacket); -#endif -#ifdef KEEP_PEER_CERT - FreeX509(&ssl->peerCert); -#endif - -#ifdef HAVE_SESSION_TICKET - if (ssl->session.isDynamic) { - XFREE(ssl->session.ticket, ssl->heap, DYNAMIC_TYPE_SESSION_TICK); - ssl->session.ticket = ssl->session.staticTicket; - ssl->session.isDynamic = 0; - ssl->session.ticketLen = 0; - } -#endif -#ifdef HAVE_EXT_CACHE - wolfSSL_SESSION_free(ssl->extSession); -#endif -#ifdef HAVE_WRITE_DUP - if (ssl->dupWrite) { - FreeWriteDup(ssl); - } -#endif -#ifdef OPENSSL_EXTRA - if (ssl->param) { - XFREE(ssl->param, ssl->heap, DYNAMIC_TYPE_OPENSSL); - } -#endif -#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_POST_HANDSHAKE_AUTH) - while (ssl->certReqCtx != NULL) { - CertReqCtx* curr = ssl->certReqCtx; - ssl->certReqCtx = curr->next; - XFREE(curr, ssl->heap, DYNAMIC_TYPE_TMP_BUFFER); - } -#endif - -#ifdef WOLFSSL_STATIC_MEMORY - /* check if using fixed io buffers and free them */ - if (ssl->heap != NULL) { - #ifdef WOLFSSL_HEAP_TEST - /* avoid dereferencing a test value */ - if (ssl->heap != (void*)WOLFSSL_HEAP_TEST) { - #endif - WOLFSSL_HEAP_HINT* ssl_hint = (WOLFSSL_HEAP_HINT*)ssl->heap; - WOLFSSL_HEAP* ctx_heap; - void* heap = ssl->ctx ? ssl->ctx->heap : ssl->heap; - - ctx_heap = ssl_hint->memory; - if (wc_LockMutex(&(ctx_heap->memory_mutex)) != 0) { - WOLFSSL_MSG("Bad memory_mutex lock"); - } - ctx_heap->curIO--; - if (FreeFixedIO(ctx_heap, &(ssl_hint->outBuf)) != 1) { - WOLFSSL_MSG("Error freeing fixed output buffer"); - } - if (FreeFixedIO(ctx_heap, &(ssl_hint->inBuf)) != 1) { - WOLFSSL_MSG("Error freeing fixed output buffer"); - } - if (ssl_hint->haFlag) { /* check if handshake count has been decreased*/ - ctx_heap->curHa--; - } - wc_UnLockMutex(&(ctx_heap->memory_mutex)); - - /* check if tracking stats */ - if (ctx_heap->flag & WOLFMEM_TRACK_STATS) { - XFREE(ssl_hint->stats, heap, DYNAMIC_TYPE_SSL); - } - XFREE(ssl->heap, heap, DYNAMIC_TYPE_SSL); - #ifdef WOLFSSL_HEAP_TEST - } - #endif - } -#endif /* WOLFSSL_STATIC_MEMORY */ -#if defined(OPENSSL_ALL) || defined(WOLFSSL_QT) - wolfSSL_sk_CIPHER_free(ssl->supportedCiphers); - wolfSSL_sk_X509_free(ssl->peerCertChain); -#endif -} - -/* Free any handshake resources no longer needed */ -void FreeHandshakeResources(WOLFSSL* ssl) -{ - -#ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->secure_renegotiation && ssl->secure_renegotiation->enabled) { - WOLFSSL_MSG("Secure Renegotiation needs to retain handshake resources"); - return; - } -#endif - - /* input buffer */ - if (ssl->buffers.inputBuffer.dynamicFlag) - ShrinkInputBuffer(ssl, NO_FORCED_FREE); - -#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_POST_HANDSHAKE_AUTH) - if (!ssl->options.tls1_3) -#endif - { - #ifndef OPENSSL_ALL - /* free suites unless using compatibility layer */ - FreeSuites(ssl); - #endif - /* hsHashes */ - FreeHandshakeHashes(ssl); - } - - /* RNG */ - if (ssl->options.tls1_1 == 0 -#ifndef WOLFSSL_AEAD_ONLY - || ssl->specs.cipher_type == stream -#endif -#if defined(WOLFSSL_TLS13) - #if !defined(WOLFSSL_POST_HANDSHAKE_AUTH) - || ssl->options.tls1_3 - #elif !defined(HAVE_SESSION_TICKET) - || (ssl->options.tls1_3 && ssl->options.side == WOLFSSL_SERVER_END) - #endif -#endif - ) { - if (ssl->options.weOwnRng) { - wc_FreeRng(ssl->rng); - XFREE(ssl->rng, ssl->heap, DYNAMIC_TYPE_RNG); - ssl->rng = NULL; - ssl->options.weOwnRng = 0; - } - } - -#ifdef WOLFSSL_DTLS - /* DTLS_POOL */ - if (ssl->options.dtls) { - DtlsMsgPoolReset(ssl); - DtlsMsgListDelete(ssl->dtls_rx_msg_list, ssl->heap); - ssl->dtls_rx_msg_list = NULL; - ssl->dtls_rx_msg_list_sz = 0; - } -#endif - -#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_POST_HANDSHAKE_AUTH) && \ - defined(HAVE_SESSION_TICKET) - if (!ssl->options.tls1_3) -#endif - /* arrays */ - if (ssl->options.saveArrays == 0) - FreeArrays(ssl, 1); - -#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_POST_HANDSHAKE_AUTH) - if (!ssl->options.tls1_3 || ssl->options.side == WOLFSSL_CLIENT_END) -#endif - { -#ifndef NO_RSA - /* peerRsaKey */ - FreeKey(ssl, DYNAMIC_TYPE_RSA, (void**)&ssl->peerRsaKey); - ssl->peerRsaKeyPresent = 0; -#endif -#ifdef HAVE_ECC - FreeKey(ssl, DYNAMIC_TYPE_ECC, (void**)&ssl->peerEccDsaKey); - ssl->peerEccDsaKeyPresent = 0; -#endif /* HAVE_ECC */ -#ifdef HAVE_ED25519 - FreeKey(ssl, DYNAMIC_TYPE_ED25519, (void**)&ssl->peerEd25519Key); - ssl->peerEd25519KeyPresent = 0; -#endif /* HAVE_ED25519 */ -#ifdef HAVE_ED448 - FreeKey(ssl, DYNAMIC_TYPE_ED448, (void**)&ssl->peerEd448Key); - ssl->peerEd448KeyPresent = 0; -#endif /* HAVE_ED448 */ - } - -#ifdef HAVE_ECC - FreeKey(ssl, DYNAMIC_TYPE_ECC, (void**)&ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; -#endif -#if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - { - int dtype; - #ifdef HAVE_ECC - dtype = DYNAMIC_TYPE_ECC; - #endif - #ifdef HAVE_CURVE25519 - #ifdef HAVE_ECC - if (ssl->peerX25519KeyPresent || - ssl->eccTempKeyPresent == DYNAMIC_TYPE_CURVE25519) - #endif /* HAVE_ECC */ - { - dtype = DYNAMIC_TYPE_CURVE25519; - } - #endif /* HAVE_CURVE25519 */ - #ifdef HAVE_CURVE448 - #ifdef HAVE_ECC - if (ssl->peerX448KeyPresent || - ssl->eccTempKeyPresent == DYNAMIC_TYPE_CURVE448) - #endif /* HAVE_ECC */ - { - dtype = DYNAMIC_TYPE_CURVE448; - } - #endif /* HAVE_CURVE448 */ - FreeKey(ssl, dtype, (void**)&ssl->eccTempKey); - ssl->eccTempKeyPresent = 0; - } -#endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ -#ifdef HAVE_CURVE25519 - FreeKey(ssl, DYNAMIC_TYPE_CURVE25519, (void**)&ssl->peerX25519Key); - ssl->peerX25519KeyPresent = 0; -#endif -#ifdef HAVE_CURVE448 - FreeKey(ssl, DYNAMIC_TYPE_CURVE448, (void**)&ssl->peerX448Key); - ssl->peerX448KeyPresent = 0; -#endif - -#ifndef NO_DH - if (ssl->buffers.serverDH_Priv.buffer) { - ForceZero(ssl->buffers.serverDH_Priv.buffer, - ssl->buffers.serverDH_Priv.length); - } - XFREE(ssl->buffers.serverDH_Priv.buffer, ssl->heap, DYNAMIC_TYPE_PRIVATE_KEY); - ssl->buffers.serverDH_Priv.buffer = NULL; - XFREE(ssl->buffers.serverDH_Pub.buffer, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - ssl->buffers.serverDH_Pub.buffer = NULL; - /* parameters (p,g) may be owned by ctx */ - if (ssl->buffers.weOwnDH) { - XFREE(ssl->buffers.serverDH_G.buffer, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - ssl->buffers.serverDH_G.buffer = NULL; - XFREE(ssl->buffers.serverDH_P.buffer, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - ssl->buffers.serverDH_P.buffer = NULL; - } -#endif /* !NO_DH */ - -#ifndef NO_CERTS - wolfSSL_UnloadCertsKeys(ssl); -#endif -#ifdef HAVE_PK_CALLBACKS -#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_POST_HANDSHAKE_AUTH) - if (!ssl->options.tls1_3 || ssl->options.side == WOLFSSL_CLIENT_END) -#endif - { - #ifdef HAVE_ECC - XFREE(ssl->buffers.peerEccDsaKey.buffer, ssl->heap, DYNAMIC_TYPE_ECC); - ssl->buffers.peerEccDsaKey.buffer = NULL; - #endif /* HAVE_ECC */ - #ifndef NO_RSA - XFREE(ssl->buffers.peerRsaKey.buffer, ssl->heap, DYNAMIC_TYPE_RSA); - ssl->buffers.peerRsaKey.buffer = NULL; - #endif /* NO_RSA */ - #ifdef HAVE_ED25519 - XFREE(ssl->buffers.peerEd25519Key.buffer, ssl->heap, - DYNAMIC_TYPE_ED25519); - ssl->buffers.peerEd25519Key.buffer = NULL; - #endif - #ifdef HAVE_ED448 - XFREE(ssl->buffers.peerEd448Key.buffer, ssl->heap, DYNAMIC_TYPE_ED448); - ssl->buffers.peerEd448Key.buffer = NULL; - #endif - } -#endif /* HAVE_PK_CALLBACKS */ - -#ifdef HAVE_QSH - QSH_FreeAll(ssl); -#endif - -#ifdef HAVE_SESSION_TICKET - if (ssl->session.isDynamic) { - XFREE(ssl->session.ticket, ssl->heap, DYNAMIC_TYPE_SESSION_TICK); - ssl->session.ticket = ssl->session.staticTicket; - ssl->session.isDynamic = 0; - ssl->session.ticketLen = 0; - } -#endif - -#if defined(HAVE_TLS_EXTENSIONS) && !defined(HAVE_SNI) && \ - !defined(HAVE_ALPN) && !defined(WOLFSSL_POST_HANDSHAKE_AUTH) - /* Some extensions need to be kept for post-handshake querying. */ - TLSX_FreeAll(ssl->extensions, ssl->heap); - ssl->extensions = NULL; -#endif - -#ifdef WOLFSSL_STATIC_MEMORY - /* when done with handshake decrement current handshake count */ - if (ssl->heap != NULL) { - #ifdef WOLFSSL_HEAP_TEST - /* avoid dereferencing a test value */ - if (ssl->heap != (void*)WOLFSSL_HEAP_TEST) { - #endif - WOLFSSL_HEAP_HINT* ssl_hint = (WOLFSSL_HEAP_HINT*)ssl->heap; - WOLFSSL_HEAP* ctx_heap; - - ctx_heap = ssl_hint->memory; - if (wc_LockMutex(&(ctx_heap->memory_mutex)) != 0) { - WOLFSSL_MSG("Bad memory_mutex lock"); - } - ctx_heap->curHa--; - ssl_hint->haFlag = 0; /* set to zero since handshake has been dec */ - wc_UnLockMutex(&(ctx_heap->memory_mutex)); - #ifdef WOLFSSL_HEAP_TEST - } - #endif - } -#endif /* WOLFSSL_STATIC_MEMORY */ -} - - -/* heap argument is the heap hint used when creating SSL */ -void FreeSSL(WOLFSSL* ssl, void* heap) -{ - if (ssl->ctx) { - FreeSSL_Ctx(ssl->ctx); /* will decrement and free underlying CTX if 0 */ - } - SSL_ResourceFree(ssl); - XFREE(ssl, heap, DYNAMIC_TYPE_SSL); - (void)heap; -} - -#if !defined(NO_OLD_TLS) || defined(WOLFSSL_DTLS) || \ - ((defined(HAVE_CHACHA) || defined(HAVE_AESCCM) || defined(HAVE_AESGCM)) \ - && defined(HAVE_AEAD)) - -#if defined(WOLFSSL_DTLS) || !defined(WOLFSSL_NO_TLS12) -static WC_INLINE void GetSEQIncrement(WOLFSSL* ssl, int verify, word32 seq[2]) -{ - if (verify) { - seq[0] = ssl->keys.peer_sequence_number_hi; - seq[1] = ssl->keys.peer_sequence_number_lo++; - if (seq[1] > ssl->keys.peer_sequence_number_lo) { - /* handle rollover */ - ssl->keys.peer_sequence_number_hi++; - } - } - else { - seq[0] = ssl->keys.sequence_number_hi; - seq[1] = ssl->keys.sequence_number_lo++; - if (seq[1] > ssl->keys.sequence_number_lo) { - /* handle rollover */ - ssl->keys.sequence_number_hi++; - } - } -} -#endif /* WOLFSSL_DTLS || !WOLFSSL_NO_TLS12 */ - - -#ifdef WOLFSSL_DTLS -static WC_INLINE void DtlsGetSEQ(WOLFSSL* ssl, int order, word32 seq[2]) -{ - if (order == PREV_ORDER) { - /* Previous epoch case */ - if (ssl->options.haveMcast) { - #ifdef WOLFSSL_MULTICAST - seq[0] = (((word32)ssl->keys.dtls_epoch - 1) << 16) | - (ssl->options.mcastID << 8) | - (ssl->keys.dtls_prev_sequence_number_hi & 0xFF); - #endif - } - else - seq[0] = (((word32)ssl->keys.dtls_epoch - 1) << 16) | - (ssl->keys.dtls_prev_sequence_number_hi & 0xFFFF); - seq[1] = ssl->keys.dtls_prev_sequence_number_lo; - } - else if (order == PEER_ORDER) { - if (ssl->options.haveMcast) { - #ifdef WOLFSSL_MULTICAST - seq[0] = ((word32)ssl->keys.curEpoch << 16) | - (ssl->keys.curPeerId << 8) | - (ssl->keys.curSeq_hi & 0xFF); - #endif - } - else - seq[0] = ((word32)ssl->keys.curEpoch << 16) | - (ssl->keys.curSeq_hi & 0xFFFF); - seq[1] = ssl->keys.curSeq_lo; /* explicit from peer */ - } - else { - if (ssl->options.haveMcast) { - #ifdef WOLFSSL_MULTICAST - seq[0] = ((word32)ssl->keys.dtls_epoch << 16) | - (ssl->options.mcastID << 8) | - (ssl->keys.dtls_sequence_number_hi & 0xFF); - #endif - } - else - seq[0] = ((word32)ssl->keys.dtls_epoch << 16) | - (ssl->keys.dtls_sequence_number_hi & 0xFFFF); - seq[1] = ssl->keys.dtls_sequence_number_lo; - } -} - -static WC_INLINE void DtlsSEQIncrement(WOLFSSL* ssl, int order) -{ - word32 seq; - - if (order == PREV_ORDER) { - seq = ssl->keys.dtls_prev_sequence_number_lo++; - if (seq > ssl->keys.dtls_prev_sequence_number_lo) { - /* handle rollover */ - ssl->keys.dtls_prev_sequence_number_hi++; - } - } - else if (order == PEER_ORDER) { - seq = ssl->keys.peer_sequence_number_lo++; - if (seq > ssl->keys.peer_sequence_number_lo) { - /* handle rollover */ - ssl->keys.peer_sequence_number_hi++; - } - } - else { - seq = ssl->keys.dtls_sequence_number_lo++; - if (seq > ssl->keys.dtls_sequence_number_lo) { - /* handle rollover */ - ssl->keys.dtls_sequence_number_hi++; - } - } -} -#endif /* WOLFSSL_DTLS */ - -#if defined(WOLFSSL_DTLS) || !defined(WOLFSSL_NO_TLS12) -static WC_INLINE void WriteSEQ(WOLFSSL* ssl, int verifyOrder, byte* out) -{ - word32 seq[2] = {0, 0}; - - if (!ssl->options.dtls) { - GetSEQIncrement(ssl, verifyOrder, seq); - } - else { -#ifdef WOLFSSL_DTLS - DtlsGetSEQ(ssl, verifyOrder, seq); -#endif - } - - c32toa(seq[0], out); - c32toa(seq[1], out + OPAQUE32_LEN); -} -#endif /* WOLFSSL_DTLS || !WOLFSSL_NO_TLS12 */ -#endif /* !NO_OLD_TLS || WOLFSSL_DTLS || - * ((HAVE_CHACHA || HAVE_AESCCM || HAVE_AESGCM) && HAVE_AEAD) */ - -#ifdef WOLFSSL_DTLS - -/* functions for managing DTLS datagram reordering */ - -/* Need to allocate space for the handshake message header. The hashing - * routines assume the message pointer is still within the buffer that - * has the headers, and will include those headers in the hash. The store - * routines need to take that into account as well. New will allocate - * extra space for the headers. */ -DtlsMsg* DtlsMsgNew(word32 sz, void* heap) -{ - DtlsMsg* msg; - - (void)heap; - msg = (DtlsMsg*)XMALLOC(sizeof(DtlsMsg), heap, DYNAMIC_TYPE_DTLS_MSG); - - if (msg != NULL) { - XMEMSET(msg, 0, sizeof(DtlsMsg)); - msg->buf = (byte*)XMALLOC(sz + DTLS_HANDSHAKE_HEADER_SZ, - heap, DYNAMIC_TYPE_DTLS_BUFFER); - if (msg->buf != NULL) { - msg->sz = sz; - msg->type = no_shake; - msg->msg = msg->buf + DTLS_HANDSHAKE_HEADER_SZ; - } - else { - XFREE(msg, heap, DYNAMIC_TYPE_DTLS_MSG); - msg = NULL; - } - } - - return msg; -} - -void DtlsMsgDelete(DtlsMsg* item, void* heap) -{ - (void)heap; - - if (item != NULL) { - DtlsFrag* cur = item->fragList; - while (cur != NULL) { - DtlsFrag* next = cur->next; - XFREE(cur, heap, DYNAMIC_TYPE_DTLS_FRAG); - cur = next; - } - if (item->buf != NULL) - XFREE(item->buf, heap, DYNAMIC_TYPE_DTLS_BUFFER); - XFREE(item, heap, DYNAMIC_TYPE_DTLS_MSG); - } -} - - -void DtlsMsgListDelete(DtlsMsg* head, void* heap) -{ - DtlsMsg* next; - while (head) { - next = head->next; - DtlsMsgDelete(head, heap); - head = next; - } -} - - -/* Create a DTLS Fragment from *begin - end, adjust new *begin and bytesLeft */ -static DtlsFrag* CreateFragment(word32* begin, word32 end, const byte* data, - byte* buf, word32* bytesLeft, void* heap) -{ - DtlsFrag* newFrag; - word32 added = end - *begin + 1; - - (void)heap; - newFrag = (DtlsFrag*)XMALLOC(sizeof(DtlsFrag), heap, - DYNAMIC_TYPE_DTLS_FRAG); - if (newFrag != NULL) { - newFrag->next = NULL; - newFrag->begin = *begin; - newFrag->end = end; - - XMEMCPY(buf + *begin, data, added); - *bytesLeft -= added; - *begin = newFrag->end + 1; - } - - return newFrag; -} - - -int DtlsMsgSet(DtlsMsg* msg, word32 seq, const byte* data, byte type, - word32 fragOffset, word32 fragSz, void* heap) -{ - if (msg != NULL && data != NULL && msg->fragSz <= msg->sz && - (fragOffset + fragSz) <= msg->sz) { - DtlsFrag* cur = msg->fragList; - DtlsFrag* prev = cur; - DtlsFrag* newFrag; - word32 bytesLeft = fragSz; /* could be overlapping fragment */ - word32 startOffset = fragOffset; - word32 added; - - msg->seq = seq; - msg->type = type; - - if (fragOffset == 0) { - XMEMCPY(msg->buf, data - DTLS_HANDSHAKE_HEADER_SZ, - DTLS_HANDSHAKE_HEADER_SZ); - c32to24(msg->sz, msg->msg - DTLS_HANDSHAKE_FRAG_SZ); - } - - /* if no message data, just return */ - if (fragSz == 0) - return 0; - - /* if list is empty add full fragment to front */ - if (cur == NULL) { - newFrag = CreateFragment(&fragOffset, fragOffset + fragSz - 1, data, - msg->msg, &bytesLeft, heap); - if (newFrag == NULL) - return MEMORY_E; - - msg->fragSz = fragSz; - msg->fragList = newFrag; - - return 0; - } - - /* add to front if before current front, up to next->begin */ - if (fragOffset < cur->begin) { - word32 end = fragOffset + fragSz - 1; - - if (end >= cur->begin) - end = cur->begin - 1; - - added = end - fragOffset + 1; - newFrag = CreateFragment(&fragOffset, end, data, msg->msg, - &bytesLeft, heap); - if (newFrag == NULL) - return MEMORY_E; - - msg->fragSz += added; - - newFrag->next = cur; - msg->fragList = newFrag; - } - - /* while we have bytes left, try to find a gap to fill */ - while (bytesLeft > 0) { - /* get previous packet in list */ - while (cur && (fragOffset >= cur->begin)) { - prev = cur; - cur = cur->next; - } - - /* don't add duplicate data */ - if (prev->end >= fragOffset) { - if ( (fragOffset + bytesLeft - 1) <= prev->end) - return 0; - fragOffset = prev->end + 1; - bytesLeft = startOffset + fragSz - fragOffset; - } - - if (cur == NULL) - /* we're at the end */ - added = bytesLeft; - else - /* we're in between two frames */ - added = min(bytesLeft, cur->begin - fragOffset); - - /* data already there */ - if (added == 0) - continue; - - newFrag = CreateFragment(&fragOffset, fragOffset + added - 1, - data + fragOffset - startOffset, - msg->msg, &bytesLeft, heap); - if (newFrag == NULL) - return MEMORY_E; - - msg->fragSz += added; - - newFrag->next = prev->next; - prev->next = newFrag; - } - } - - return 0; -} - - -DtlsMsg* DtlsMsgFind(DtlsMsg* head, word32 seq) -{ - while (head != NULL && head->seq != seq) { - head = head->next; - } - return head; -} - - -void DtlsMsgStore(WOLFSSL* ssl, word32 seq, const byte* data, - word32 dataSz, byte type, word32 fragOffset, word32 fragSz, void* heap) -{ - /* See if seq exists in the list. If it isn't in the list, make - * a new item of size dataSz, copy fragSz bytes from data to msg->msg - * starting at offset fragOffset, and add fragSz to msg->fragSz. If - * the seq is in the list and it isn't full, copy fragSz bytes from - * data to msg->msg starting at offset fragOffset, and add fragSz to - * msg->fragSz. Insertions take into account data already in the list - * in case there are overlaps in the handshake message due to retransmit - * messages. The new item should be inserted into the list in its - * proper position. - * - * 1. Find seq in list, or where seq should go in list. If seq not in - * list, create new item and insert into list. Either case, keep - * pointer to item. - * 2. Copy the data from the message to the stored message where it - * belongs without overlaps. - */ - - DtlsMsg* head = ssl->dtls_rx_msg_list; - - if (head != NULL) { - DtlsMsg* cur = DtlsMsgFind(head, seq); - if (cur == NULL) { - cur = DtlsMsgNew(dataSz, heap); - if (cur != NULL) { - if (DtlsMsgSet(cur, seq, data, type, - fragOffset, fragSz, heap) < 0) { - DtlsMsgDelete(cur, heap); - } - else { - ssl->dtls_rx_msg_list_sz++; - head = DtlsMsgInsert(head, cur); - } - } - } - else { - /* If this fails, the data is just dropped. */ - DtlsMsgSet(cur, seq, data, type, fragOffset, fragSz, heap); - } - } - else { - head = DtlsMsgNew(dataSz, heap); - if (DtlsMsgSet(head, seq, data, type, fragOffset, fragSz, heap) < 0) { - DtlsMsgDelete(head, heap); - head = NULL; - } - else { - ssl->dtls_rx_msg_list_sz++; - } - } - - ssl->dtls_rx_msg_list = head; -} - - -/* DtlsMsgInsert() is an in-order insert. */ -DtlsMsg* DtlsMsgInsert(DtlsMsg* head, DtlsMsg* item) -{ - if (head == NULL || item->seq < head->seq) { - item->next = head; - head = item; - } - else if (head->next == NULL) { - head->next = item; - } - else { - DtlsMsg* cur = head->next; - DtlsMsg* prev = head; - while (cur) { - if (item->seq < cur->seq) { - item->next = cur; - prev->next = item; - break; - } - prev = cur; - cur = cur->next; - } - if (cur == NULL) { - prev->next = item; - } - } - - return head; -} - - -/* DtlsMsgPoolSave() adds the message to the end of the stored transmit list. */ -int DtlsMsgPoolSave(WOLFSSL* ssl, const byte* data, word32 dataSz) -{ - DtlsMsg* item; - int ret = 0; - - WOLFSSL_ENTER("DtlsMsgPoolSave()"); - - if (ssl->dtls_tx_msg_list_sz > DTLS_POOL_SZ) { - WOLFSSL_ERROR(DTLS_POOL_SZ_E); - return DTLS_POOL_SZ_E; - } - - item = DtlsMsgNew(dataSz, ssl->heap); - - if (item != NULL) { - DtlsMsg* cur = ssl->dtls_tx_msg_list; - - XMEMCPY(item->buf, data, dataSz); - item->sz = dataSz; - item->seq = ssl->keys.dtls_epoch; - - if (cur == NULL) - ssl->dtls_tx_msg_list = item; - else { - while (cur->next) - cur = cur->next; - cur->next = item; - } - ssl->dtls_tx_msg_list_sz++; - } - else - ret = MEMORY_E; - - WOLFSSL_LEAVE("DtlsMsgPoolSave()", ret); - return ret; -} - - -/* DtlsMsgPoolTimeout() updates the timeout time. */ -int DtlsMsgPoolTimeout(WOLFSSL* ssl) -{ - int result = -1; - if (ssl->dtls_timeout < ssl->dtls_timeout_max) { - ssl->dtls_timeout *= DTLS_TIMEOUT_MULTIPLIER; - result = 0; - } - WOLFSSL_LEAVE("DtlsMsgPoolTimeout()", result); - return result; -} - - -/* DtlsMsgPoolReset() deletes the stored transmit list and resets the timeout - * value. */ -void DtlsMsgPoolReset(WOLFSSL* ssl) -{ - WOLFSSL_ENTER("DtlsMsgPoolReset()"); - if (ssl->dtls_tx_msg_list) { - DtlsMsgListDelete(ssl->dtls_tx_msg_list, ssl->heap); - ssl->dtls_tx_msg_list = NULL; - ssl->dtls_tx_msg = NULL; - ssl->dtls_tx_msg_list_sz = 0; - ssl->dtls_timeout = ssl->dtls_timeout_init; - } -} - - -int VerifyForDtlsMsgPoolSend(WOLFSSL* ssl, byte type, word32 fragOffset) -{ - /** - * only the first message from previous flight should be valid - * to be used for triggering retransmission of whole DtlsMsgPool. - * change cipher suite type is not verified here - */ - return ((fragOffset == 0) && - (((ssl->options.side == WOLFSSL_SERVER_END) && - ((type == client_hello) || - ((ssl->options.verifyPeer) && (type == certificate)) || - ((!ssl->options.verifyPeer) && (type == client_key_exchange)))) || - ((ssl->options.side == WOLFSSL_CLIENT_END) && - (type == server_hello)))); -} - - -/* DtlsMsgPoolSend() will send the stored transmit list. The stored list is - * updated with new sequence numbers, and will be re-encrypted if needed. */ -int DtlsMsgPoolSend(WOLFSSL* ssl, int sendOnlyFirstPacket) -{ - int ret = 0; - DtlsMsg* pool; - - WOLFSSL_ENTER("DtlsMsgPoolSend()"); - - pool = ssl->dtls_tx_msg == NULL ? ssl->dtls_tx_msg_list : ssl->dtls_tx_msg; - - if (pool != NULL) { - if ((ssl->options.side == WOLFSSL_SERVER_END && - !(ssl->options.acceptState == SERVER_HELLO_DONE || - ssl->options.acceptState == ACCEPT_FINISHED_DONE || - ssl->options.acceptState == ACCEPT_THIRD_REPLY_DONE)) || - (ssl->options.side == WOLFSSL_CLIENT_END && - !(ssl->options.connectState == CLIENT_HELLO_SENT || - ssl->options.connectState == HELLO_AGAIN_REPLY || - ssl->options.connectState == FINISHED_DONE || - ssl->options.connectState == SECOND_REPLY_DONE))) { - - WOLFSSL_ERROR(DTLS_RETX_OVER_TX); - ssl->error = DTLS_RETX_OVER_TX; - return WOLFSSL_FATAL_ERROR; - } - - while (pool != NULL) { - if (pool->seq == 0) { - DtlsRecordLayerHeader* dtls; - int epochOrder; - - dtls = (DtlsRecordLayerHeader*)pool->buf; - /* If the stored record's epoch is 0, and the currently set - * epoch is 0, use the "current order" sequence number. - * If the stored record's epoch is 0 and the currently set - * epoch is not 0, the stored record is considered a "previous - * order" sequence number. */ - epochOrder = (ssl->keys.dtls_epoch == 0) ? - CUR_ORDER : PREV_ORDER; - - WriteSEQ(ssl, epochOrder, dtls->sequence_number); - DtlsSEQIncrement(ssl, epochOrder); - if ((ret = CheckAvailableSize(ssl, pool->sz)) != 0) { - WOLFSSL_ERROR(ret); - return ret; - } - - XMEMCPY(ssl->buffers.outputBuffer.buffer, - pool->buf, pool->sz); - ssl->buffers.outputBuffer.idx = 0; - ssl->buffers.outputBuffer.length = pool->sz; - } - else if (pool->seq == ssl->keys.dtls_epoch) { - byte* input; - byte* output; - int inputSz, sendSz; - - input = pool->buf; - inputSz = pool->sz; - sendSz = inputSz + MAX_MSG_EXTRA; - - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) { - WOLFSSL_ERROR(ret); - return ret; - } - - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - handshake, 0, 0, 0); - if (sendSz < 0) { - WOLFSSL_ERROR(BUILD_MSG_ERROR); - return BUILD_MSG_ERROR; - } - - ssl->buffers.outputBuffer.length += sendSz; - } - - ret = SendBuffered(ssl); - if (ret < 0) { - WOLFSSL_ERROR(ret); - return ret; - } - - /** - * on server side, retransmission is being triggered only by sending - * first message of given flight, in order to trigger client - * to retransmit its whole flight. Sending the whole previous flight - * could lead to retransmission of previous client flight for each - * server message from previous flight. Therefore one message should - * be enough to do the trick. - */ - if (sendOnlyFirstPacket && - ssl->options.side == WOLFSSL_SERVER_END) { - - pool = NULL; - } - else - pool = pool->next; - ssl->dtls_tx_msg = pool; - } - } - - WOLFSSL_LEAVE("DtlsMsgPoolSend()", ret); - return ret; -} - -#endif /* WOLFSSL_DTLS */ - -#if defined(WOLFSSL_ALLOW_SSLV3) && !defined(NO_OLD_TLS) - -ProtocolVersion MakeSSLv3(void) -{ - ProtocolVersion pv; - pv.major = SSLv3_MAJOR; - pv.minor = SSLv3_MINOR; - - return pv; -} - -#endif /* WOLFSSL_ALLOW_SSLV3 && !NO_OLD_TLS */ - - -#ifdef WOLFSSL_DTLS - -ProtocolVersion MakeDTLSv1(void) -{ - ProtocolVersion pv; - pv.major = DTLS_MAJOR; - pv.minor = DTLS_MINOR; - - return pv; -} - -#ifndef WOLFSSL_NO_TLS12 - -ProtocolVersion MakeDTLSv1_2(void) -{ - ProtocolVersion pv; - pv.major = DTLS_MAJOR; - pv.minor = DTLSv1_2_MINOR; - - return pv; -} - -#endif /* !WOLFSSL_NO_TLS12 */ - -#endif /* WOLFSSL_DTLS */ - - -#ifndef NO_ASN_TIME -#if defined(USER_TICKS) -#if 0 - word32 LowResTimer(void) - { - /* - write your own clock tick function if don't want time(0) - needs second accuracy but doesn't have to correlated to EPOCH - */ - } -#endif - -#elif defined(TIME_OVERRIDES) - - /* use same asn time overrides unless user wants tick override above */ - - #ifndef HAVE_TIME_T_TYPE - typedef long time_t; - #endif - extern time_t XTIME(time_t * timer); - - word32 LowResTimer(void) - { - return (word32) XTIME(0); - } - -#elif defined(USE_WINDOWS_API) - - word32 LowResTimer(void) - { - static int init = 0; - static LARGE_INTEGER freq; - LARGE_INTEGER count; - - if (!init) { - QueryPerformanceFrequency(&freq); - init = 1; - } - - QueryPerformanceCounter(&count); - - return (word32)(count.QuadPart / freq.QuadPart); - } - -#elif defined(HAVE_RTP_SYS) - - #include "rtptime.h" - - word32 LowResTimer(void) - { - return (word32)rtp_get_system_sec(); - } - -#elif defined(WOLFSSL_DEOS) - - word32 LowResTimer(void) - { - const uint32_t systemTickTimeInHz = 1000000 / systemTickInMicroseconds(); - uint32_t *systemTickPtr = systemTickPointer(); - - return (word32) *systemTickPtr/systemTickTimeInHz; - } - -#elif defined(MICRIUM) - - word32 LowResTimer(void) - { - OS_TICK ticks = 0; - OS_ERR err; - - ticks = OSTimeGet(&err); - - return (word32) (ticks / OSCfg_TickRate_Hz); - } - - -#elif defined(MICROCHIP_TCPIP_V5) - - word32 LowResTimer(void) - { - return (word32) (TickGet() / TICKS_PER_SECOND); - } - - -#elif defined(MICROCHIP_TCPIP) - - #if defined(MICROCHIP_MPLAB_HARMONY) - - #include <system/tmr/sys_tmr.h> - - word32 LowResTimer(void) - { - return (word32) (SYS_TMR_TickCountGet() / - SYS_TMR_TickCounterFrequencyGet()); - } - - #else - - word32 LowResTimer(void) - { - return (word32) (SYS_TICK_Get() / SYS_TICK_TicksPerSecondGet()); - } - - #endif - -#elif defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX) - - word32 LowResTimer(void) - { - TIME_STRUCT mqxTime; - - _time_get_elapsed(&mqxTime); - - return (word32) mqxTime.SECONDS; - } -#elif defined(FREESCALE_FREE_RTOS) || defined(FREESCALE_KSDK_FREERTOS) - - #include "include/task.h" - - unsigned int LowResTimer(void) - { - return (unsigned int)(((float)xTaskGetTickCount())/configTICK_RATE_HZ); - } - -#elif defined(FREERTOS) - - #include "task.h" - - unsigned int LowResTimer(void) - { - return (unsigned int)(((float)xTaskGetTickCount())/configTICK_RATE_HZ); - } - -#elif defined(FREESCALE_KSDK_BM) - - #include "lwip/sys.h" /* lwIP */ - word32 LowResTimer(void) - { - return sys_now()/1000; - } - -#elif defined(WOLFSSL_TIRTOS) - - word32 LowResTimer(void) - { - return (word32) Seconds_get(); - } -#elif defined(WOLFSSL_XILINX) - #include "xrtcpsu.h" - - word32 LowResTimer(void) - { - XRtcPsu_Config* con; - XRtcPsu rtc; - - con = XRtcPsu_LookupConfig(XPAR_XRTCPSU_0_DEVICE_ID); - if (con != NULL) { - if (XRtcPsu_CfgInitialize(&rtc, con, con->BaseAddr) - == XST_SUCCESS) { - return (word32)XRtcPsu_GetCurrentTime(&rtc); - } - else { - WOLFSSL_MSG("Unable to initialize RTC"); - } - } - - return 0; - } - -#elif defined(WOLFSSL_UTASKER) - - word32 LowResTimer(void) - { - return (word32)(uTaskerSystemTick / TICK_RESOLUTION); - } - -#elif defined(WOLFSSL_NUCLEUS_1_2) - - #define NU_TICKS_PER_SECOND 100 - - word32 LowResTimer(void) - { - /* returns number of 10ms ticks, so 100 ticks/sec */ - return NU_Retrieve_Clock() / NU_TICKS_PER_SECOND; - } -#elif defined(WOLFSSL_APACHE_MYNEWT) - - #include "os/os_time.h" - word32 LowResTimer(void) - { - word32 now; - struct os_timeval tv; - os_gettimeofday(&tv, NULL); - now = (word32)tv.tv_sec; - return now; - } - -#elif defined(WOLFSSL_ZEPHYR) - - word32 LowResTimer(void) - { - return k_uptime_get() / 1000; - } - -#else - /* Posix style time */ - #if !defined(USER_TIME) && !defined(USE_WOLF_TM) - #include <time.h> - #endif - - word32 LowResTimer(void) - { - return (word32)XTIME(0); - } -#endif -#endif /* !NO_ASN_TIME */ -#if !defined(WOLFSSL_NO_CLIENT_AUTH) && \ - ((defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH)) || \ - (defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH))) -/* Store the message for use with CertificateVerify using EdDSA. - * - * ssl SSL/TLS object. - * data Message to store. - * sz Size of message to store. - * returns MEMORY_E if not able to reallocate, otherwise 0. - */ -static int EdDSA_Update(WOLFSSL* ssl, const byte* data, int sz) -{ - int ret = 0; - byte* msgs; - - if (ssl->options.cacheMessages) { - msgs = (byte*)XREALLOC(ssl->hsHashes->messages, - ssl->hsHashes->length + sz, - ssl->heap, DYNAMIC_TYPE_HASHES); - if (msgs == NULL) - ret = MEMORY_E; - if (ret == 0) { - ssl->hsHashes->messages = msgs; - XMEMCPY(msgs + ssl->hsHashes->length, data, sz); - ssl->hsHashes->prevLen = ssl->hsHashes->length; - ssl->hsHashes->length += sz; - } - } - - return ret; -} -#endif /* (HAVE_ED25519 || HAVE_ED448) && !WOLFSSL_NO_CLIENT_AUTH */ - -#ifndef NO_CERTS -int HashOutputRaw(WOLFSSL* ssl, const byte* output, int sz) -{ - int ret = 0; - - (void)output; - (void)sz; - - if (ssl->hsHashes == NULL) - return BAD_FUNC_ARG; - -#ifdef HAVE_FUZZER - if (ssl->fuzzerCb) - ssl->fuzzerCb(ssl, output, sz, FUZZ_HASH, ssl->fuzzerCtx); -#endif -#ifndef NO_OLD_TLS - #ifndef NO_SHA - wc_ShaUpdate(&ssl->hsHashes->hashSha, output, sz); - #endif - #ifndef NO_MD5 - wc_Md5Update(&ssl->hsHashes->hashMd5, output, sz); - #endif -#endif /* NO_OLD_TLS */ - - if (IsAtLeastTLSv1_2(ssl)) { - #ifndef NO_SHA256 - ret = wc_Sha256Update(&ssl->hsHashes->hashSha256, output, sz); - if (ret != 0) - return ret; - #endif - #ifdef WOLFSSL_SHA384 - ret = wc_Sha384Update(&ssl->hsHashes->hashSha384, output, sz); - if (ret != 0) - return ret; - #endif - #ifdef WOLFSSL_SHA512 - ret = wc_Sha512Update(&ssl->hsHashes->hashSha512, output, sz); - if (ret != 0) - return ret; - #endif - #if !defined(WOLFSSL_NO_CLIENT_AUTH) && \ - ((defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH)) || \ - (defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH))) - ret = EdDSA_Update(ssl, output, sz); - if (ret != 0) - return ret; - #endif - } - - return ret; -} -#endif /* NO_CERTS */ - - -/* add output to md5 and sha handshake hashes, exclude record header */ -int HashOutput(WOLFSSL* ssl, const byte* output, int sz, int ivSz) -{ - int ret = 0; - const byte* adj; - - if (ssl->hsHashes == NULL) - return BAD_FUNC_ARG; - - adj = output + RECORD_HEADER_SZ + ivSz; - sz -= RECORD_HEADER_SZ; - -#ifdef HAVE_FUZZER - if (ssl->fuzzerCb) - ssl->fuzzerCb(ssl, output, sz, FUZZ_HASH, ssl->fuzzerCtx); -#endif -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - adj += DTLS_RECORD_EXTRA; - sz -= DTLS_RECORD_EXTRA; - } -#endif -#ifndef NO_OLD_TLS - #ifndef NO_SHA - wc_ShaUpdate(&ssl->hsHashes->hashSha, adj, sz); - #endif - #ifndef NO_MD5 - wc_Md5Update(&ssl->hsHashes->hashMd5, adj, sz); - #endif -#endif - - if (IsAtLeastTLSv1_2(ssl)) { - #ifndef NO_SHA256 - ret = wc_Sha256Update(&ssl->hsHashes->hashSha256, adj, sz); - if (ret != 0) - return ret; - #endif - #ifdef WOLFSSL_SHA384 - ret = wc_Sha384Update(&ssl->hsHashes->hashSha384, adj, sz); - if (ret != 0) - return ret; - #endif - #ifdef WOLFSSL_SHA512 - ret = wc_Sha512Update(&ssl->hsHashes->hashSha512, adj, sz); - if (ret != 0) - return ret; - #endif - #if !defined(WOLFSSL_NO_CLIENT_AUTH) && \ - ((defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH)) || \ - (defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH))) - ret = EdDSA_Update(ssl, adj, sz); - if (ret != 0) - return ret; - #endif - } - - return ret; -} - - -/* add input to md5 and sha handshake hashes, include handshake header */ -int HashInput(WOLFSSL* ssl, const byte* input, int sz) -{ - int ret = 0; - const byte* adj; - - adj = input - HANDSHAKE_HEADER_SZ; - sz += HANDSHAKE_HEADER_SZ; - - (void)adj; - -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - adj -= DTLS_HANDSHAKE_EXTRA; - sz += DTLS_HANDSHAKE_EXTRA; - } -#endif - - if (ssl->hsHashes == NULL) { - return BAD_FUNC_ARG; - } - -#ifndef NO_OLD_TLS - #ifndef NO_SHA - wc_ShaUpdate(&ssl->hsHashes->hashSha, adj, sz); - #endif - #ifndef NO_MD5 - wc_Md5Update(&ssl->hsHashes->hashMd5, adj, sz); - #endif -#endif - - if (IsAtLeastTLSv1_2(ssl)) { - #ifndef NO_SHA256 - ret = wc_Sha256Update(&ssl->hsHashes->hashSha256, adj, sz); - if (ret != 0) - return ret; - #endif - #ifdef WOLFSSL_SHA384 - ret = wc_Sha384Update(&ssl->hsHashes->hashSha384, adj, sz); - if (ret != 0) - return ret; - #endif - #ifdef WOLFSSL_SHA512 - ret = wc_Sha512Update(&ssl->hsHashes->hashSha512, adj, sz); - if (ret != 0) - return ret; - #endif - #if !defined(WOLFSSL_NO_CLIENT_AUTH) && \ - ((defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH)) || \ - (defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH))) - ret = EdDSA_Update(ssl, adj, sz); - if (ret != 0) - return ret; - #endif - } - - return ret; -} - - -/* add record layer header for message */ -static void AddRecordHeader(byte* output, word32 length, byte type, WOLFSSL* ssl) -{ - RecordLayerHeader* rl; - - /* record layer header */ - rl = (RecordLayerHeader*)output; - if (rl == NULL) { - return; - } - rl->type = type; - rl->pvMajor = ssl->version.major; /* type and version same in each */ -#ifdef WOLFSSL_TLS13 - if (IsAtLeastTLSv1_3(ssl->version)) { -#ifdef WOLFSSL_TLS13_DRAFT_18 - rl->pvMinor = TLSv1_MINOR; -#else - rl->pvMinor = TLSv1_2_MINOR; -#endif - } - else -#endif - rl->pvMinor = ssl->version.minor; - -#ifdef WOLFSSL_ALTERNATIVE_DOWNGRADE - if (ssl->options.side == WOLFSSL_CLIENT_END - && ssl->options.connectState == CONNECT_BEGIN - && !ssl->options.resuming) { - rl->pvMinor = ssl->options.downgrade ? ssl->options.minDowngrade - : ssl->version.minor; - } -#endif - - if (!ssl->options.dtls) { - c16toa((word16)length, rl->length); - } - else { -#ifdef WOLFSSL_DTLS - DtlsRecordLayerHeader* dtls; - - /* dtls record layer header extensions */ - dtls = (DtlsRecordLayerHeader*)output; - WriteSEQ(ssl, 0, dtls->sequence_number); - c16toa((word16)length, dtls->length); -#endif - } -} - - -#if !defined(WOLFSSL_NO_TLS12) || (defined(HAVE_SESSION_TICKET) && \ - !defined(NO_WOLFSSL_SERVER)) -/* add handshake header for message */ -static void AddHandShakeHeader(byte* output, word32 length, - word32 fragOffset, word32 fragLength, - byte type, WOLFSSL* ssl) -{ - HandShakeHeader* hs; - (void)fragOffset; - (void)fragLength; - (void)ssl; - - /* handshake header */ - hs = (HandShakeHeader*)output; - if (hs == NULL) - return; - - hs->type = type; - c32to24(length, hs->length); /* type and length same for each */ -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - DtlsHandShakeHeader* dtls; - - /* dtls handshake header extensions */ - dtls = (DtlsHandShakeHeader*)output; - c16toa(ssl->keys.dtls_handshake_number++, dtls->message_seq); - c32to24(fragOffset, dtls->fragment_offset); - c32to24(fragLength, dtls->fragment_length); - } -#endif -} - -/* add both headers for handshake message */ -static void AddHeaders(byte* output, word32 length, byte type, WOLFSSL* ssl) -{ - word32 lengthAdj = HANDSHAKE_HEADER_SZ; - word32 outputAdj = RECORD_HEADER_SZ; - -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - lengthAdj += DTLS_HANDSHAKE_EXTRA; - outputAdj += DTLS_RECORD_EXTRA; - } -#endif - - AddRecordHeader(output, length + lengthAdj, handshake, ssl); - AddHandShakeHeader(output + outputAdj, length, 0, length, type, ssl); -} -#endif /* !WOLFSSL_NO_TLS12 || (HAVE_SESSION_TICKET && !NO_WOLFSSL_SERVER) */ - - -#ifndef WOLFSSL_NO_TLS12 -#if !defined(NO_CERTS) && (!defined(NO_WOLFSSL_SERVER) || \ - !defined(WOLFSSL_NO_CLIENT_AUTH)) -static void AddFragHeaders(byte* output, word32 fragSz, word32 fragOffset, - word32 length, byte type, WOLFSSL* ssl) -{ - word32 lengthAdj = HANDSHAKE_HEADER_SZ; - word32 outputAdj = RECORD_HEADER_SZ; - (void)fragSz; - -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - lengthAdj += DTLS_HANDSHAKE_EXTRA; - outputAdj += DTLS_RECORD_EXTRA; - } -#endif - - AddRecordHeader(output, fragSz + lengthAdj, handshake, ssl); - AddHandShakeHeader(output + outputAdj, length, fragOffset, fragSz, type, ssl); -} -#endif /* NO_CERTS */ -#endif /* !WOLFSSL_NO_TLS12 */ - - -/* return bytes received, -1 on error */ -static int wolfSSLReceive(WOLFSSL* ssl, byte* buf, word32 sz) -{ - int recvd; - - if (ssl->CBIORecv == NULL) { - WOLFSSL_MSG("Your IO Recv callback is null, please set"); - return -1; - } - -retry: - recvd = ssl->CBIORecv(ssl, (char *)buf, (int)sz, ssl->IOCB_ReadCtx); - if (recvd < 0) { - switch (recvd) { - case WOLFSSL_CBIO_ERR_GENERAL: /* general/unknown error */ - #if defined(OPENSSL_ALL) || defined(WOLFSSL_APACHE_HTTPD) - if (ssl->biord) { - /* If retry and read flags are set, return WANT_READ */ - if ((ssl->biord->flags & WOLFSSL_BIO_FLAG_READ) && - (ssl->biord->flags & WOLFSSL_BIO_FLAG_RETRY)) { - return WANT_READ; - } - } - #endif - return -1; - - case WOLFSSL_CBIO_ERR_WANT_READ: /* want read, would block */ - return WANT_READ; - - case WOLFSSL_CBIO_ERR_CONN_RST: /* connection reset */ - #ifdef USE_WINDOWS_API - if (ssl->options.dtls) { - goto retry; - } - #endif - ssl->options.connReset = 1; - return -1; - - case WOLFSSL_CBIO_ERR_ISR: /* interrupt */ - /* see if we got our timeout */ - #ifdef WOLFSSL_CALLBACKS - if (ssl->toInfoOn) { - struct itimerval timeout; - getitimer(ITIMER_REAL, &timeout); - if (timeout.it_value.tv_sec == 0 && - timeout.it_value.tv_usec == 0) { - XSTRNCPY(ssl->timeoutInfo.timeoutName, - "recv() timeout", MAX_TIMEOUT_NAME_SZ); - ssl->timeoutInfo.timeoutName[ - MAX_TIMEOUT_NAME_SZ] = '\0'; - - WOLFSSL_MSG("Got our timeout"); - return WANT_READ; - } - } - #endif - goto retry; - - case WOLFSSL_CBIO_ERR_CONN_CLOSE: /* peer closed connection */ - ssl->options.isClosed = 1; - return -1; - - case WOLFSSL_CBIO_ERR_TIMEOUT: - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl) && - !ssl->options.handShakeDone && - DtlsMsgPoolTimeout(ssl) == 0 && - DtlsMsgPoolSend(ssl, 0) == 0) { - - /* retry read for DTLS during handshake only */ - goto retry; - } - #endif - return -1; - - default: - WOLFSSL_MSG("Unexpected recv return code"); - return recvd; - } - } - - return recvd; -} - - -/* Switch dynamic output buffer back to static, buffer is assumed clear */ -void ShrinkOutputBuffer(WOLFSSL* ssl) -{ - WOLFSSL_MSG("Shrinking output buffer\n"); - XFREE(ssl->buffers.outputBuffer.buffer - ssl->buffers.outputBuffer.offset, - ssl->heap, DYNAMIC_TYPE_OUT_BUFFER); - ssl->buffers.outputBuffer.buffer = ssl->buffers.outputBuffer.staticBuffer; - ssl->buffers.outputBuffer.bufferSize = STATIC_BUFFER_LEN; - ssl->buffers.outputBuffer.dynamicFlag = 0; - ssl->buffers.outputBuffer.offset = 0; -} - - -/* Switch dynamic input buffer back to static, keep any remaining input */ -/* forced free means cleaning up */ -void ShrinkInputBuffer(WOLFSSL* ssl, int forcedFree) -{ - int usedLength = ssl->buffers.inputBuffer.length - - ssl->buffers.inputBuffer.idx; - if (!forcedFree && usedLength > STATIC_BUFFER_LEN) - return; - - WOLFSSL_MSG("Shrinking input buffer\n"); - - if (!forcedFree && usedLength > 0) - XMEMCPY(ssl->buffers.inputBuffer.staticBuffer, - ssl->buffers.inputBuffer.buffer + ssl->buffers.inputBuffer.idx, - usedLength); - - XFREE(ssl->buffers.inputBuffer.buffer - ssl->buffers.inputBuffer.offset, - ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - ssl->buffers.inputBuffer.buffer = ssl->buffers.inputBuffer.staticBuffer; - ssl->buffers.inputBuffer.bufferSize = STATIC_BUFFER_LEN; - ssl->buffers.inputBuffer.dynamicFlag = 0; - ssl->buffers.inputBuffer.offset = 0; - ssl->buffers.inputBuffer.idx = 0; - ssl->buffers.inputBuffer.length = usedLength; -} - -int SendBuffered(WOLFSSL* ssl) -{ - if (ssl->CBIOSend == NULL) { - WOLFSSL_MSG("Your IO Send callback is null, please set"); - return SOCKET_ERROR_E; - } - -#ifdef WOLFSSL_DEBUG_TLS - if (ssl->buffers.outputBuffer.idx == 0) { - WOLFSSL_MSG("Data to send"); - WOLFSSL_BUFFER(ssl->buffers.outputBuffer.buffer, - ssl->buffers.outputBuffer.length); - } -#endif - - while (ssl->buffers.outputBuffer.length > 0) { - int sent = ssl->CBIOSend(ssl, - (char*)ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.idx, - (int)ssl->buffers.outputBuffer.length, - ssl->IOCB_WriteCtx); - if (sent < 0) { - switch (sent) { - - case WOLFSSL_CBIO_ERR_WANT_WRITE: /* would block */ - return WANT_WRITE; - - case WOLFSSL_CBIO_ERR_CONN_RST: /* connection reset */ - ssl->options.connReset = 1; - break; - - case WOLFSSL_CBIO_ERR_ISR: /* interrupt */ - /* see if we got our timeout */ - #ifdef WOLFSSL_CALLBACKS - if (ssl->toInfoOn) { - struct itimerval timeout; - getitimer(ITIMER_REAL, &timeout); - if (timeout.it_value.tv_sec == 0 && - timeout.it_value.tv_usec == 0) { - XSTRNCPY(ssl->timeoutInfo.timeoutName, - "send() timeout", MAX_TIMEOUT_NAME_SZ); - ssl->timeoutInfo.timeoutName[ - MAX_TIMEOUT_NAME_SZ] = '\0'; - - WOLFSSL_MSG("Got our timeout"); - return WANT_WRITE; - } - } - #endif - continue; - - case WOLFSSL_CBIO_ERR_CONN_CLOSE: /* epipe / conn closed */ - ssl->options.connReset = 1; /* treat same as reset */ - break; - - default: - return SOCKET_ERROR_E; - } - - return SOCKET_ERROR_E; - } - - if (sent > (int)ssl->buffers.outputBuffer.length) { - WOLFSSL_MSG("SendBuffered() out of bounds read"); - return SEND_OOB_READ_E; - } - - ssl->buffers.outputBuffer.idx += sent; - ssl->buffers.outputBuffer.length -= sent; - } - - ssl->buffers.outputBuffer.idx = 0; - - if (ssl->buffers.outputBuffer.dynamicFlag) - ShrinkOutputBuffer(ssl); - - return 0; -} - - -/* Grow the output buffer */ -static WC_INLINE int GrowOutputBuffer(WOLFSSL* ssl, int size) -{ - byte* tmp; -#if WOLFSSL_GENERAL_ALIGNMENT > 0 - byte hdrSz = ssl->options.dtls ? DTLS_RECORD_HEADER_SZ : - RECORD_HEADER_SZ; - byte align = WOLFSSL_GENERAL_ALIGNMENT; -#else - const byte align = WOLFSSL_GENERAL_ALIGNMENT; -#endif - -#if WOLFSSL_GENERAL_ALIGNMENT > 0 - /* the encrypted data will be offset from the front of the buffer by - the header, if the user wants encrypted alignment they need - to define their alignment requirement */ - - if (align) { - while (align < hdrSz) - align *= 2; - } -#endif - - tmp = (byte*)XMALLOC(size + ssl->buffers.outputBuffer.length + align, - ssl->heap, DYNAMIC_TYPE_OUT_BUFFER); - WOLFSSL_MSG("growing output buffer\n"); - - if (tmp == NULL) - return MEMORY_E; - -#if WOLFSSL_GENERAL_ALIGNMENT > 0 - if (align) - tmp += align - hdrSz; -#endif - -#ifdef WOLFSSL_STATIC_MEMORY - /* can be from IO memory pool which does not need copy if same buffer */ - if (ssl->buffers.outputBuffer.length && - tmp == ssl->buffers.outputBuffer.buffer) { - ssl->buffers.outputBuffer.bufferSize = - size + ssl->buffers.outputBuffer.length; - return 0; - } -#endif - - if (ssl->buffers.outputBuffer.length) - XMEMCPY(tmp, ssl->buffers.outputBuffer.buffer, - ssl->buffers.outputBuffer.length); - - if (ssl->buffers.outputBuffer.dynamicFlag) - XFREE(ssl->buffers.outputBuffer.buffer - - ssl->buffers.outputBuffer.offset, ssl->heap, - DYNAMIC_TYPE_OUT_BUFFER); - ssl->buffers.outputBuffer.dynamicFlag = 1; - -#if WOLFSSL_GENERAL_ALIGNMENT > 0 - if (align) - ssl->buffers.outputBuffer.offset = align - hdrSz; - else -#endif - ssl->buffers.outputBuffer.offset = 0; - - ssl->buffers.outputBuffer.buffer = tmp; - ssl->buffers.outputBuffer.bufferSize = size + - ssl->buffers.outputBuffer.length; - return 0; -} - - -/* Grow the input buffer, should only be to read cert or big app data */ -int GrowInputBuffer(WOLFSSL* ssl, int size, int usedLength) -{ - byte* tmp; -#if defined(WOLFSSL_DTLS) || WOLFSSL_GENERAL_ALIGNMENT > 0 - byte align = ssl->options.dtls ? WOLFSSL_GENERAL_ALIGNMENT : 0; - byte hdrSz = DTLS_RECORD_HEADER_SZ; -#else - const byte align = WOLFSSL_GENERAL_ALIGNMENT; -#endif - -#if defined(WOLFSSL_DTLS) || WOLFSSL_GENERAL_ALIGNMENT > 0 - /* the encrypted data will be offset from the front of the buffer by - the dtls record header, if the user wants encrypted alignment they need - to define their alignment requirement. in tls we read record header - to get size of record and put actual data back at front, so don't need */ - - if (align) { - while (align < hdrSz) - align *= 2; - } -#endif - - if (usedLength < 0 || size < 0) { - WOLFSSL_MSG("GrowInputBuffer() called with negative number"); - return BAD_FUNC_ARG; - } - - tmp = (byte*)XMALLOC(size + usedLength + align, - ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - WOLFSSL_MSG("growing input buffer\n"); - - if (tmp == NULL) - return MEMORY_E; - -#if defined(WOLFSSL_DTLS) || WOLFSSL_GENERAL_ALIGNMENT > 0 - if (align) - tmp += align - hdrSz; -#endif - -#ifdef WOLFSSL_STATIC_MEMORY - /* can be from IO memory pool which does not need copy if same buffer */ - if (usedLength && tmp == ssl->buffers.inputBuffer.buffer) { - ssl->buffers.inputBuffer.bufferSize = size + usedLength; - ssl->buffers.inputBuffer.idx = 0; - ssl->buffers.inputBuffer.length = usedLength; - return 0; - } -#endif - - if (usedLength) - XMEMCPY(tmp, ssl->buffers.inputBuffer.buffer + - ssl->buffers.inputBuffer.idx, usedLength); - - if (ssl->buffers.inputBuffer.dynamicFlag) - XFREE(ssl->buffers.inputBuffer.buffer - ssl->buffers.inputBuffer.offset, - ssl->heap,DYNAMIC_TYPE_IN_BUFFER); - - ssl->buffers.inputBuffer.dynamicFlag = 1; -#if defined(WOLFSSL_DTLS) || WOLFSSL_GENERAL_ALIGNMENT > 0 - if (align) - ssl->buffers.inputBuffer.offset = align - hdrSz; - else -#endif - ssl->buffers.inputBuffer.offset = 0; - - ssl->buffers.inputBuffer.buffer = tmp; - ssl->buffers.inputBuffer.bufferSize = size + usedLength; - ssl->buffers.inputBuffer.idx = 0; - ssl->buffers.inputBuffer.length = usedLength; - - return 0; -} - - -/* check available size into output buffer, make room if needed */ -int CheckAvailableSize(WOLFSSL *ssl, int size) -{ - if (size < 0) { - WOLFSSL_MSG("CheckAvailableSize() called with negative number"); - return BAD_FUNC_ARG; - } - - if (ssl->buffers.outputBuffer.bufferSize - ssl->buffers.outputBuffer.length - < (word32)size) { - if (GrowOutputBuffer(ssl, size) < 0) - return MEMORY_E; - } - - return 0; -} - - -/* do all verify and sanity checks on record header */ -static int GetRecordHeader(WOLFSSL* ssl, const byte* input, word32* inOutIdx, - RecordLayerHeader* rh, word16 *size) -{ - if (!ssl->options.dtls) { -#ifdef HAVE_FUZZER - if (ssl->fuzzerCb) - ssl->fuzzerCb(ssl, input + *inOutIdx, RECORD_HEADER_SZ, FUZZ_HEAD, - ssl->fuzzerCtx); -#endif - XMEMCPY(rh, input + *inOutIdx, RECORD_HEADER_SZ); - *inOutIdx += RECORD_HEADER_SZ; - ato16(rh->length, size); - } - else { -#ifdef WOLFSSL_DTLS -#ifdef HAVE_FUZZER - if (ssl->fuzzerCb) - ssl->fuzzerCb(ssl, input + *inOutIdx, DTLS_RECORD_HEADER_SZ, - FUZZ_HEAD, ssl->fuzzerCtx); -#endif - /* type and version in same sport */ - XMEMCPY(rh, input + *inOutIdx, ENUM_LEN + VERSION_SZ); - *inOutIdx += ENUM_LEN + VERSION_SZ; - ato16(input + *inOutIdx, &ssl->keys.curEpoch); - *inOutIdx += OPAQUE16_LEN; - if (ssl->options.haveMcast) { - #ifdef WOLFSSL_MULTICAST - ssl->keys.curPeerId = input[*inOutIdx]; - ssl->keys.curSeq_hi = input[*inOutIdx+1]; - #endif - } - else - ato16(input + *inOutIdx, &ssl->keys.curSeq_hi); - *inOutIdx += OPAQUE16_LEN; - ato32(input + *inOutIdx, &ssl->keys.curSeq_lo); - *inOutIdx += OPAQUE32_LEN; /* advance past rest of seq */ - ato16(input + *inOutIdx, size); - *inOutIdx += LENGTH_SZ; -#endif - } - -#ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl) && !DtlsCheckWindow(ssl)) { - WOLFSSL_LEAVE("GetRecordHeader()", SEQUENCE_ERROR); - return SEQUENCE_ERROR; - } -#endif - - /* catch version mismatch */ -#ifndef WOLFSSL_TLS13 - if (rh->pvMajor != ssl->version.major || rh->pvMinor != ssl->version.minor) -#else - if (rh->pvMajor != ssl->version.major || - (rh->pvMinor != ssl->version.minor && -#ifdef WOLFSSL_TLS13_DRAFT_18 - (!IsAtLeastTLSv1_3(ssl->version) || rh->pvMinor != TLSv1_MINOR) -#else - (!IsAtLeastTLSv1_3(ssl->version) || rh->pvMinor != TLSv1_2_MINOR) -#endif - )) -#endif - { - if (ssl->options.side == WOLFSSL_SERVER_END && - ssl->options.acceptState < ACCEPT_FIRST_REPLY_DONE) - - WOLFSSL_MSG("Client attempting to connect with different version"); - else if (ssl->options.side == WOLFSSL_CLIENT_END && - ssl->options.downgrade && - ssl->options.connectState < FIRST_REPLY_DONE) - WOLFSSL_MSG("Server attempting to accept with different version"); - else if (ssl->options.dtls && rh->type == handshake) - /* Check the DTLS handshake message RH version later. */ - WOLFSSL_MSG("DTLS handshake, skip RH version number check"); - else { - WOLFSSL_MSG("SSL version error"); - /* send alert per RFC5246 Appendix E. Backward Compatibility */ - if (ssl->options.side == WOLFSSL_CLIENT_END) { -#ifdef WOLFSSL_MYSQL_COMPATIBLE - SendAlert(ssl, alert_fatal, wc_protocol_version); -#else - SendAlert(ssl, alert_fatal, protocol_version); -#endif - } - return VERSION_ERROR; /* only use requested version */ - } - } - - /* record layer length check */ -#ifdef HAVE_MAX_FRAGMENT - if (*size > (ssl->max_fragment + MAX_COMP_EXTRA + MAX_MSG_EXTRA)) { - SendAlert(ssl, alert_fatal, record_overflow); - return LENGTH_ERROR; - } -#else - if (*size > (MAX_RECORD_SIZE + MAX_COMP_EXTRA + MAX_MSG_EXTRA)) - return LENGTH_ERROR; -#endif - - /* verify record type here as well */ - switch (rh->type) { - case handshake: - case change_cipher_spec: - case application_data: - case alert: - break; - case no_type: - default: - WOLFSSL_MSG("Unknown Record Type"); - return UNKNOWN_RECORD_TYPE; - } - - /* haven't decrypted this record yet */ - ssl->keys.decryptedCur = 0; - - return 0; -} - -#ifndef WOLFSSL_NO_TLS12 -static int GetHandShakeHeader(WOLFSSL* ssl, const byte* input, word32* inOutIdx, - byte *type, word32 *size, word32 totalSz) -{ - const byte *ptr = input + *inOutIdx; - (void)ssl; - - *inOutIdx += HANDSHAKE_HEADER_SZ; - if (*inOutIdx > totalSz) - return BUFFER_E; - - *type = ptr[0]; - c24to32(&ptr[1], size); - - return 0; -} -#endif - -#ifdef WOLFSSL_DTLS -static int GetDtlsHandShakeHeader(WOLFSSL* ssl, const byte* input, - word32* inOutIdx, byte *type, word32 *size, - word32 *fragOffset, word32 *fragSz, - word32 totalSz) -{ - word32 idx = *inOutIdx; - - *inOutIdx += HANDSHAKE_HEADER_SZ + DTLS_HANDSHAKE_EXTRA; - if (*inOutIdx > totalSz) { - WOLFSSL_ERROR(BUFFER_E); - return BUFFER_E; - } - - *type = input[idx++]; - c24to32(input + idx, size); - idx += OPAQUE24_LEN; - - ato16(input + idx, &ssl->keys.dtls_peer_handshake_number); - idx += DTLS_HANDSHAKE_SEQ_SZ; - - c24to32(input + idx, fragOffset); - idx += DTLS_HANDSHAKE_FRAG_SZ; - c24to32(input + idx, fragSz); - - if (ssl->curRL.pvMajor != ssl->version.major || - ssl->curRL.pvMinor != ssl->version.minor) { - - if (*type != client_hello && *type != hello_verify_request) { - WOLFSSL_ERROR(VERSION_ERROR); - return VERSION_ERROR; - } - else { - WOLFSSL_MSG("DTLS Handshake ignoring hello or verify version"); - } - } - return 0; -} -#endif - - -#if !defined(NO_OLD_TLS) || \ - (defined(NO_OLD_TLS) && defined(WOLFSSL_ALLOW_TLS_SHA1)) -/* fill with MD5 pad size since biggest required */ -static const byte PAD1[PAD_MD5] = - { 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, - 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, - 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, - 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, - 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, - 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36 - }; -static const byte PAD2[PAD_MD5] = - { 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, - 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, - 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, - 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, - 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, - 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c - }; -#endif /* !NO_OLD_TLS || (NO_OLD_TLS && WOLFSSL_ALLOW_TLS_SHA1) */ - -#ifndef NO_OLD_TLS - -/* calculate MD5 hash for finished */ -#ifdef WOLFSSL_TI_HASH -#include <wolfssl/wolfcrypt/hash.h> -#endif - -static int BuildMD5(WOLFSSL* ssl, Hashes* hashes, const byte* sender) -{ - int ret; - byte md5_result[WC_MD5_DIGEST_SIZE]; -#ifdef WOLFSSL_SMALL_STACK - wc_Md5* md5 = (wc_Md5*)XMALLOC(sizeof(wc_Md5), ssl->heap, DYNAMIC_TYPE_HASHCTX); - if (md5 == NULL) - return MEMORY_E; -#else - wc_Md5 md5[1]; -#endif - - /* make md5 inner */ - ret = wc_Md5Copy(&ssl->hsHashes->hashMd5, md5); - if (ret == 0) - ret = wc_Md5Update(md5, sender, SIZEOF_SENDER); - if (ret == 0) - ret = wc_Md5Update(md5, ssl->arrays->masterSecret,SECRET_LEN); - if (ret == 0) - ret = wc_Md5Update(md5, PAD1, PAD_MD5); - if (ret == 0) - ret = wc_Md5Final(md5, md5_result); - - /* make md5 outer */ - if (ret == 0) { - ret = wc_InitMd5_ex(md5, ssl->heap, ssl->devId); - if (ret == 0) { - ret = wc_Md5Update(md5, ssl->arrays->masterSecret,SECRET_LEN); - if (ret == 0) - ret = wc_Md5Update(md5, PAD2, PAD_MD5); - if (ret == 0) - ret = wc_Md5Update(md5, md5_result, WC_MD5_DIGEST_SIZE); - if (ret == 0) - ret = wc_Md5Final(md5, hashes->md5); - wc_Md5Free(md5); - } - } - -#ifdef WOLFSSL_SMALL_STACK - XFREE(md5, ssl->heap, DYNAMIC_TYPE_HASHCTX); -#endif - - return ret; -} - - -/* calculate SHA hash for finished */ -static int BuildSHA(WOLFSSL* ssl, Hashes* hashes, const byte* sender) -{ - int ret; - byte sha_result[WC_SHA_DIGEST_SIZE]; -#ifdef WOLFSSL_SMALL_STACK - wc_Sha* sha = (wc_Sha*)XMALLOC(sizeof(wc_Sha), ssl->heap, DYNAMIC_TYPE_HASHCTX); - if (sha == NULL) - return MEMORY_E; -#else - wc_Sha sha[1]; -#endif - /* make sha inner */ - ret = wc_ShaCopy(&ssl->hsHashes->hashSha, sha); /* Save current position */ - if (ret == 0) - ret = wc_ShaUpdate(sha, sender, SIZEOF_SENDER); - if (ret == 0) - ret = wc_ShaUpdate(sha, ssl->arrays->masterSecret,SECRET_LEN); - if (ret == 0) - ret = wc_ShaUpdate(sha, PAD1, PAD_SHA); - if (ret == 0) - ret = wc_ShaFinal(sha, sha_result); - - /* make sha outer */ - if (ret == 0) { - ret = wc_InitSha_ex(sha, ssl->heap, ssl->devId); - if (ret == 0) { - ret = wc_ShaUpdate(sha, ssl->arrays->masterSecret,SECRET_LEN); - if (ret == 0) - ret = wc_ShaUpdate(sha, PAD2, PAD_SHA); - if (ret == 0) - ret = wc_ShaUpdate(sha, sha_result, WC_SHA_DIGEST_SIZE); - if (ret == 0) - ret = wc_ShaFinal(sha, hashes->sha); - wc_ShaFree(sha); - } - } - -#ifdef WOLFSSL_SMALL_STACK - XFREE(sha, ssl->heap, DYNAMIC_TYPE_HASHCTX); -#endif - - return ret; -} -#endif - -#ifndef WOLFSSL_NO_TLS12 - -/* Finished doesn't support SHA512, not SHA512 cipher suites yet */ -static int BuildFinished(WOLFSSL* ssl, Hashes* hashes, const byte* sender) -{ - int ret = 0; - - if (ssl == NULL) - return BAD_FUNC_ARG; - -#ifndef NO_TLS - if (ssl->options.tls) { - ret = BuildTlsFinished(ssl, hashes, sender); - } -#endif -#ifndef NO_OLD_TLS - if (!ssl->options.tls) { - ret = BuildMD5(ssl, hashes, sender); - if (ret == 0) { - ret = BuildSHA(ssl, hashes, sender); - } - } -#endif - - return ret; -} - -#endif /* WOLFSSL_NO_TLS12 */ - -#if !defined(NO_WOLFSSL_SERVER) || !defined(NO_WOLFSSL_CLIENT) - /* cipher requirements */ - enum { - REQUIRES_RSA, - REQUIRES_DHE, - REQUIRES_ECC, - REQUIRES_ECC_STATIC, - REQUIRES_PSK, - REQUIRES_NTRU, - REQUIRES_RSA_SIG, - REQUIRES_AEAD - }; - - - - /* Does this cipher suite (first, second) have the requirement - an ephemeral key exchange will still require the key for signing - the key exchange so ECHDE_RSA requires an rsa key thus rsa_kea */ - static int CipherRequires(byte first, byte second, int requirement) - { - - (void)requirement; - -#ifndef WOLFSSL_NO_TLS12 - -#ifdef HAVE_CHACHA - if (first == CHACHA_BYTE) { - - switch (second) { - case TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 : - if (requirement == REQUIRES_ECC) - return 1; - break; - - case TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - break; - - case TLS_ECDHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_ECDHE_ECDSA_WITH_CHACHA20_OLD_POLY1305_SHA256 : - if (requirement == REQUIRES_ECC) - return 1; - break; - - case TLS_DHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - break; - - - case TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 : - if (requirement == REQUIRES_PSK) - return 1; - break; - - case TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 : - if (requirement == REQUIRES_PSK) - return 1; - break; - - case TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 : - if (requirement == REQUIRES_PSK) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - break; - } - - if (requirement == REQUIRES_AEAD) - return 1; - - } -#endif /* HAVE_CHACHA */ - - /* ECC extensions */ - if (first == ECC_BYTE) { - - switch (second) { -#if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - #ifndef NO_RSA - case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - if (requirement == REQUIRES_RSA_SIG) - return 1; - break; - - #ifndef NO_DES3 - case TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - if (requirement == REQUIRES_RSA_SIG) - return 1; - break; - #endif /* !NO_DES3 */ - - #ifndef NO_RC4 - case TLS_ECDHE_RSA_WITH_RC4_128_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_ECDH_RSA_WITH_RC4_128_SHA : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - if (requirement == REQUIRES_RSA_SIG) - return 1; - break; - #endif /* !NO_RC4 */ - #endif /* NO_RSA */ - - #ifndef NO_DES3 - case TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA : - if (requirement == REQUIRES_ECC) - return 1; - break; - - case TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - break; - #endif /* !NO_DES3 */ - #ifndef NO_RC4 - case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA : - if (requirement == REQUIRES_ECC) - return 1; - break; - - case TLS_ECDH_ECDSA_WITH_RC4_128_SHA : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - break; - #endif /* !NO_RC4 */ - #ifndef NO_RSA - case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - if (requirement == REQUIRES_RSA_SIG) - return 1; - break; - #endif /* !NO_RSA */ - - case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA : - if (requirement == REQUIRES_ECC) - return 1; - break; - - case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - break; - - case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA : - if (requirement == REQUIRES_ECC) - return 1; - break; - - case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - break; - - case TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 : - if (requirement == REQUIRES_ECC) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 : - if (requirement == REQUIRES_ECC) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; -#endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - -#ifndef NO_RSA - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - case TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - if (requirement == REQUIRES_RSA_SIG) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 : - if (requirement == REQUIRES_ECC_STATIC) - return 1; - if (requirement == REQUIRES_RSA_SIG) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - #ifdef HAVE_AESCCM - case TLS_RSA_WITH_AES_128_CCM_8 : - case TLS_RSA_WITH_AES_256_CCM_8 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_RSA_SIG) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - #endif /* HAVE_AESCCM */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - - case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 : - case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 : - case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 : - if (requirement == REQUIRES_RSA_SIG) - return 1; - if (requirement == REQUIRES_ECC_STATIC) - return 1; - break; - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ -#endif /* !NO_RSA */ - -#if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - case TLS_ECDHE_ECDSA_WITH_AES_128_CCM : - case TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 : - case TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 : - if (requirement == REQUIRES_ECC) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 : - case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 : - if (requirement == REQUIRES_ECC) - return 1; - break; - - case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 : - case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 : - if (requirement == REQUIRES_ECC) - return 1; - if (requirement == REQUIRES_ECC_STATIC) - return 1; - break; -#endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - -#ifndef NO_PSK - case TLS_PSK_WITH_AES_128_CCM: - case TLS_PSK_WITH_AES_256_CCM: - case TLS_PSK_WITH_AES_128_CCM_8: - case TLS_PSK_WITH_AES_256_CCM_8: - if (requirement == REQUIRES_PSK) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_DHE_PSK_WITH_AES_128_CCM: - case TLS_DHE_PSK_WITH_AES_256_CCM: - if (requirement == REQUIRES_PSK) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; -#endif /* !NO_PSK */ -#if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - case TLS_ECDHE_ECDSA_WITH_NULL_SHA : - if (requirement == REQUIRES_ECC) - return 1; - break; - - case TLS_ECDHE_PSK_WITH_NULL_SHA256 : - if (requirement == REQUIRES_PSK) - return 1; - break; - - case TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 : - if (requirement == REQUIRES_PSK) - return 1; - break; -#endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - -#if defined(WOLFSSL_TLS13) && defined(HAVE_NULL_CIPHER) - case TLS_SHA256_SHA256: - break; - case TLS_SHA384_SHA384: - break; -#endif - - default: - WOLFSSL_MSG("Unsupported cipher suite, CipherRequires ECC"); - return 0; - } /* switch */ - } /* if */ - -#endif /* !WOLFSSL_NO_TLS12 */ - - /* Distinct TLS v1.3 cipher suites with cipher and digest only. */ - if (first == TLS13_BYTE) { - - switch (second) { -#ifdef WOLFSSL_TLS13 - case TLS_AES_128_GCM_SHA256: - case TLS_AES_256_GCM_SHA384: - case TLS_CHACHA20_POLY1305_SHA256: - case TLS_AES_128_CCM_SHA256: - case TLS_AES_128_CCM_8_SHA256: - break; -#endif - - default: - WOLFSSL_MSG("Unsupported cipher suite, CipherRequires " - "TLS v1.3"); - return 0; - } - } - -#ifndef WOLFSSL_NO_TLS12 - - if (first != ECC_BYTE && first != CHACHA_BYTE && - first != TLS13_BYTE) { /* normal suites */ - switch (second) { - -#ifndef NO_RSA - #ifndef NO_RC4 - case SSL_RSA_WITH_RC4_128_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case SSL_RSA_WITH_RC4_128_MD5 : - if (requirement == REQUIRES_RSA) - return 1; - break; - #endif /* NO_RC4 */ - - case SSL_RSA_WITH_3DES_EDE_CBC_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; - - #ifdef HAVE_NTRU - case TLS_NTRU_RSA_WITH_RC4_128_SHA : - if (requirement == REQUIRES_NTRU) - return 1; - break; - #endif /* HAVE_NTRU */ - - case TLS_RSA_WITH_AES_128_CBC_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_RSA_WITH_AES_128_CBC_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - break; - - #ifdef HAVE_NTRU - case TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA : - if (requirement == REQUIRES_NTRU) - return 1; - break; - #endif /* HAVE_NTRU */ - - case TLS_RSA_WITH_AES_256_CBC_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; - - #ifdef HAVE_NTRU - case TLS_NTRU_RSA_WITH_AES_128_CBC_SHA : - if (requirement == REQUIRES_NTRU) - return 1; - break; - #endif /* HAVE_NTRU */ - - case TLS_RSA_WITH_AES_256_CBC_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_RSA_WITH_NULL_MD5 : - case TLS_RSA_WITH_NULL_SHA : - case TLS_RSA_WITH_NULL_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - break; - - #ifdef HAVE_NTRU - case TLS_NTRU_RSA_WITH_AES_256_CBC_SHA : - if (requirement == REQUIRES_NTRU) - return 1; - break; - #endif /* HAVE_NTRU */ - - #ifdef HAVE_IDEA - case SSL_RSA_WITH_IDEA_CBC_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; - #endif /* HAVE_IDEA */ -#endif /* !NO_RSA */ - -#ifndef NO_PSK - case TLS_PSK_WITH_AES_128_GCM_SHA256 : - if (requirement == REQUIRES_PSK) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_PSK_WITH_AES_256_GCM_SHA384 : - if (requirement == REQUIRES_PSK) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_PSK_WITH_AES_128_CBC_SHA256 : - case TLS_PSK_WITH_AES_256_CBC_SHA384 : - case TLS_PSK_WITH_AES_128_CBC_SHA : - case TLS_PSK_WITH_AES_256_CBC_SHA : - case TLS_PSK_WITH_NULL_SHA384 : - case TLS_PSK_WITH_NULL_SHA256 : - case TLS_PSK_WITH_NULL_SHA : - if (requirement == REQUIRES_PSK) - return 1; - break; - - case TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 : - case TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 : - if (requirement == REQUIRES_DHE) - return 1; - if (requirement == REQUIRES_PSK) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 : - case TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 : - case TLS_DHE_PSK_WITH_NULL_SHA384 : - case TLS_DHE_PSK_WITH_NULL_SHA256 : - if (requirement == REQUIRES_DHE) - return 1; - if (requirement == REQUIRES_PSK) - return 1; - break; -#endif /* NO_PSK */ - -#ifndef NO_RSA - case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - break; - - case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - break; - - case TLS_DHE_RSA_WITH_AES_128_CBC_SHA : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - break; - - case TLS_DHE_RSA_WITH_AES_256_CBC_SHA : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - break; - -#ifndef NO_HC128 - case TLS_RSA_WITH_HC_128_MD5 : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_RSA_WITH_HC_128_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; -#endif /* NO_HC128 */ - -#ifndef NO_RABBIT - case TLS_RSA_WITH_RABBIT_SHA : - if (requirement == REQUIRES_RSA) - return 1; - break; -#endif /* !NO_RABBIT */ - - case TLS_RSA_WITH_AES_128_GCM_SHA256 : - case TLS_RSA_WITH_AES_256_GCM_SHA384 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - - case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 : - case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; - -#ifdef HAVE_CAMELLIA - case TLS_RSA_WITH_CAMELLIA_128_CBC_SHA : - case TLS_RSA_WITH_CAMELLIA_256_CBC_SHA : - case TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 : - case TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - break; - - case TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA : - case TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA : - case TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 : - case TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 : - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_RSA_SIG) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - break; -#endif /* HAVE_CAMELLIA */ - - case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA: - if (requirement == REQUIRES_RSA) - return 1; - if (requirement == REQUIRES_RSA_SIG) - return 1; - if (requirement == REQUIRES_DHE) - return 1; - break; -#endif -#ifdef HAVE_ANON - case TLS_DH_anon_WITH_AES_128_CBC_SHA : - if (requirement == REQUIRES_DHE) - return 1; - break; - case TLS_DH_anon_WITH_AES_256_GCM_SHA384: - if (requirement == REQUIRES_DHE) - return 1; - if (requirement == REQUIRES_AEAD) - return 1; - break; -#endif -#ifdef WOLFSSL_MULTICAST - case WDM_WITH_NULL_SHA256 : - break; -#endif - - default: - WOLFSSL_MSG("Unsupported cipher suite, CipherRequires"); - return 0; - } /* switch */ - } /* if ECC / Normal suites else */ - -#endif /* !WOLFSSL_NO_TLS12 */ - - return 0; - } - -#endif /* !NO_WOLFSSL_SERVER && !NO_WOLFSSL_CLIENT */ - - -#ifndef NO_CERTS - - -/* Match names with wildcards, each wildcard can represent a single name - component or fragment but not multiple names, i.e., - *.z.com matches y.z.com but not x.y.z.com - - return 1 on success */ -int MatchDomainName(const char* pattern, int len, const char* str) -{ - int ret = 0; - char p, s; - - if (pattern == NULL || str == NULL || len <= 0) - return 0; - - while (len > 0) { - - p = (char)XTOLOWER((unsigned char)*pattern++); - if (p == '\0') - break; - - if (p == '*') { - while (--len > 0 && - (p = (char)XTOLOWER((unsigned char)*pattern++)) == '*') { - } - - if (len == 0) - p = '\0'; - - while ( (s = (char)XTOLOWER((unsigned char) *str)) != '\0') { - if (s == p) - break; - if (s == '.') - return 0; - str++; - } - } - else { - if (p != (char)XTOLOWER((unsigned char) *str)) - return 0; - } - - - if (len > 0) { - str++; - len--; - } - } - - if (*str == '\0' && len == 0) { - ret = 1; /* success */ - } - - return ret; -} - - -/* try to find an altName match to domain, return 1 on success */ -int CheckAltNames(DecodedCert* dCert, char* domain) -{ - int match = 0; - DNS_entry* altName = NULL; - - WOLFSSL_MSG("Checking AltNames"); - - if (dCert) - altName = dCert->altNames; - - while (altName) { - WOLFSSL_MSG("\tindividual AltName check"); - - if (MatchDomainName(altName->name, altName->len, domain)){ - match = 1; - break; - } - - altName = altName->next; - } - - return match; -} - -#ifdef OPENSSL_EXTRA -/* Check that alternative names, if they exists, match the domain. - * Fail if there are wild patterns and they didn't match. - * Check the common name if no alternative names matched. - * - * dCert Decoded cert to get the alternative names from. - * domain Domain name to compare against. - * checkCN Whether to check the common name. - * returns whether there was a problem in matching. - */ -static int CheckForAltNames(DecodedCert* dCert, char* domain, int* checkCN) -{ - int match; - DNS_entry* altName = NULL; - - WOLFSSL_MSG("Checking AltNames"); - - if (dCert) - altName = dCert->altNames; - - *checkCN = altName == NULL; - match = 0; - while (altName) { - WOLFSSL_MSG("\tindividual AltName check"); - - if (MatchDomainName(altName->name, altName->len, domain)) { - match = 1; - *checkCN = 0; - break; - } - /* No matches and wild pattern match failed. */ - else if (altName->name && altName->len >=1 && - altName->name[0] == '*' && match == 0) { - match = -1; - } - - altName = altName->next; - } - - return match != -1; -} - -/* Check the domain name matches the subject alternative name or the subject - * name. - * - * dcert Decoded certificate. - * domainName The domain name. - * domainNameLen The length of the domain name. - * returns DOMAIN_NAME_MISMATCH when no match found and 0 on success. - */ -int CheckHostName(DecodedCert* dCert, char *domainName, size_t domainNameLen) -{ - int checkCN; - - /* Assume name is NUL terminated. */ - (void)domainNameLen; - - if (CheckForAltNames(dCert, domainName, &checkCN) == 0) { - WOLFSSL_MSG("DomainName match on alt names failed too"); - return DOMAIN_NAME_MISMATCH; - } - if (checkCN == 1) { - if (MatchDomainName(dCert->subjectCN, dCert->subjectCNLen, - domainName) == 0) { - WOLFSSL_MSG("DomainName match on common name failed"); - return DOMAIN_NAME_MISMATCH; - } - } - - return 0; -} - -int CheckIPAddr(DecodedCert* dCert, char* ipasc) -{ - WOLFSSL_MSG("Checking IPAddr"); - - return CheckHostName(dCert, ipasc, (size_t)XSTRLEN(ipasc)); -} -#endif - -#ifdef SESSION_CERTS -static void AddSessionCertToChain(WOLFSSL_X509_CHAIN* chain, - byte* certBuf, word32 certSz) -{ - if (chain->count < MAX_CHAIN_DEPTH && - certSz < MAX_X509_SIZE) { - chain->certs[chain->count].length = certSz; - XMEMCPY(chain->certs[chain->count].buffer, certBuf, certSz); - chain->count++; - } - else { - WOLFSSL_MSG("Couldn't store chain cert for session"); - } -} -#endif - -#if defined(KEEP_PEER_CERT) || defined(SESSION_CERTS) || \ - defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) -/* Copy parts X509 needs from Decoded cert, 0 on success */ -/* The same DecodedCert cannot be copied to WOLFSSL_X509 twice otherwise the - * altNames pointers could be free'd by second x509 still active by first */ -int CopyDecodedToX509(WOLFSSL_X509* x509, DecodedCert* dCert) -{ - int ret = 0; - - if (x509 == NULL || dCert == NULL || - dCert->subjectCNLen < 0) - return BAD_FUNC_ARG; - - x509->version = dCert->version + 1; - - XSTRNCPY(x509->issuer.name, dCert->issuer, ASN_NAME_MAX); - x509->issuer.name[ASN_NAME_MAX - 1] = '\0'; - x509->issuer.sz = (int)XSTRLEN(x509->issuer.name) + 1; -#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - if (dCert->issuerName.fullName != NULL) { - XMEMCPY(&x509->issuer.fullName, - &dCert->issuerName, sizeof(DecodedName)); - x509->issuer.fullName.fullName = (char*)XMALLOC( - dCert->issuerName.fullNameLen, x509->heap, - DYNAMIC_TYPE_X509); - if (x509->issuer.fullName.fullName != NULL) - XMEMCPY(x509->issuer.fullName.fullName, - dCert->issuerName.fullName, dCert->issuerName.fullNameLen); - } - x509->issuer.x509 = x509; -#endif /* OPENSSL_EXTRA || OPENSSL_EXTRA_X509_SMALL */ - - XSTRNCPY(x509->subject.name, dCert->subject, ASN_NAME_MAX); - x509->subject.name[ASN_NAME_MAX - 1] = '\0'; - x509->subject.sz = (int)XSTRLEN(x509->subject.name) + 1; -#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - if (dCert->subjectName.fullName != NULL) { - XMEMCPY(&x509->subject.fullName, - &dCert->subjectName, sizeof(DecodedName)); - x509->subject.fullName.fullName = (char*)XMALLOC( - dCert->subjectName.fullNameLen, x509->heap, DYNAMIC_TYPE_X509); - if (x509->subject.fullName.fullName != NULL) - XMEMCPY(x509->subject.fullName.fullName, - dCert->subjectName.fullName, dCert->subjectName.fullNameLen); - } - x509->subject.x509 = x509; -#endif /* OPENSSL_EXTRA || OPENSSL_EXTRA_X509_SMALL */ -#if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) - x509->subject.rawLen = min(dCert->subjectRawLen, sizeof(x509->subject.raw)); - XMEMCPY(x509->subject.raw, dCert->subjectRaw, x509->subject.rawLen); -#ifdef WOLFSSL_CERT_EXT - x509->issuer.rawLen = min(dCert->issuerRawLen, sizeof(x509->issuer.raw)); - XMEMCPY(x509->issuer.raw, dCert->issuerRaw, x509->issuer.rawLen); -#endif -#endif - - XMEMCPY(x509->serial, dCert->serial, EXTERNAL_SERIAL_SIZE); - x509->serialSz = dCert->serialSz; - if (dCert->subjectCN && dCert->subjectCNLen < ASN_NAME_MAX) { - XMEMCPY(x509->subjectCN, dCert->subjectCN, dCert->subjectCNLen); - x509->subjectCN[dCert->subjectCNLen] = '\0'; - } - else - x509->subjectCN[0] = '\0'; - -#ifdef WOLFSSL_SEP - { - int minSz = min(dCert->deviceTypeSz, EXTERNAL_SERIAL_SIZE); - if (minSz > 0) { - x509->deviceTypeSz = minSz; - XMEMCPY(x509->deviceType, dCert->deviceType, minSz); - } - else - x509->deviceTypeSz = 0; - minSz = min(dCert->hwTypeSz, EXTERNAL_SERIAL_SIZE); - if (minSz > 0) { - x509->hwTypeSz = minSz; - XMEMCPY(x509->hwType, dCert->hwType, minSz); - } - else - x509->hwTypeSz = 0; - minSz = min(dCert->hwSerialNumSz, EXTERNAL_SERIAL_SIZE); - if (minSz > 0) { - x509->hwSerialNumSz = minSz; - XMEMCPY(x509->hwSerialNum, dCert->hwSerialNum, minSz); - } - else - x509->hwSerialNumSz = 0; - } -#endif /* WOLFSSL_SEP */ - { - int minSz; - if (dCert->beforeDateLen > 0) { - minSz = min(dCert->beforeDate[1], MAX_DATE_SZ); - x509->notBefore.type = dCert->beforeDate[0]; - x509->notBefore.length = minSz; - XMEMCPY(x509->notBefore.data, &dCert->beforeDate[2], minSz); - } - else - x509->notBefore.length = 0; - if (dCert->afterDateLen > 0) { - minSz = min(dCert->afterDate[1], MAX_DATE_SZ); - x509->notAfter.type = dCert->afterDate[0]; - x509->notAfter.length = minSz; - XMEMCPY(x509->notAfter.data, &dCert->afterDate[2], minSz); - } - else - x509->notAfter.length = 0; - } - - if (dCert->publicKey != NULL && dCert->pubKeySize != 0) { - x509->pubKey.buffer = (byte*)XMALLOC( - dCert->pubKeySize, x509->heap, DYNAMIC_TYPE_PUBLIC_KEY); - if (x509->pubKey.buffer != NULL) { - x509->pubKeyOID = dCert->keyOID; - x509->pubKey.length = dCert->pubKeySize; - XMEMCPY(x509->pubKey.buffer, dCert->publicKey, dCert->pubKeySize); - } - else - ret = MEMORY_E; -#if defined(OPENSSL_ALL) - if (ret == 0) { - x509->key.pubKeyOID = dCert->keyOID; - - if (!x509->key.algor) { - x509->key.algor = wolfSSL_X509_ALGOR_new(); - } else { - wolfSSL_ASN1_OBJECT_free(x509->key.algor->algorithm); - } - if (!(x509->key.algor->algorithm = - wolfSSL_OBJ_nid2obj(dCert->keyOID))) { - ret = PUBLIC_KEY_E; - } - - wolfSSL_EVP_PKEY_free(x509->key.pkey); - if (!(x509->key.pkey = wolfSSL_d2i_PUBKEY(NULL, - &dCert->publicKey, - dCert->pubKeySize))) { - ret = PUBLIC_KEY_E; - } - } -#endif - } - - if (dCert->signature != NULL && dCert->sigLength != 0 && - dCert->sigLength <= MAX_ENCODED_SIG_SZ) { - x509->sig.buffer = (byte*)XMALLOC( - dCert->sigLength, x509->heap, DYNAMIC_TYPE_SIGNATURE); - if (x509->sig.buffer == NULL) { - ret = MEMORY_E; - } - else { - XMEMCPY(x509->sig.buffer, dCert->signature, dCert->sigLength); - x509->sig.length = dCert->sigLength; - x509->sigOID = dCert->signatureOID; - } -#if defined(OPENSSL_ALL) - wolfSSL_ASN1_OBJECT_free(x509->algor.algorithm); - if (!(x509->algor.algorithm = - wolfSSL_OBJ_nid2obj(dCert->signatureOID))) { - ret = PUBLIC_KEY_E; - } -#endif - } - - /* store cert for potential retrieval */ - if (AllocDer(&x509->derCert, dCert->maxIdx, CERT_TYPE, x509->heap) == 0) { - XMEMCPY(x509->derCert->buffer, dCert->source, dCert->maxIdx); - } - else { - ret = MEMORY_E; - } - - x509->altNames = dCert->altNames; - dCert->weOwnAltNames = 0; - x509->altNamesNext = x509->altNames; /* index hint */ - -#if (defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL)) && \ - !defined(IGNORE_NAME_CONSTRAINTS) - /* add copies of alternate emails from dCert to X509 */ - if (dCert->altEmailNames != NULL) { - DNS_entry* cur = dCert->altEmailNames; - - while (cur != NULL) { - if (cur->type == ASN_RFC822_TYPE) { - DNS_entry* dnsEntry; - int strLen = cur->len; - - dnsEntry = (DNS_entry*)XMALLOC(sizeof(DNS_entry), x509->heap, - DYNAMIC_TYPE_ALTNAME); - if (dnsEntry == NULL) { - WOLFSSL_MSG("\tOut of Memory"); - return MEMORY_E; - } - - dnsEntry->type = ASN_RFC822_TYPE; - dnsEntry->name = (char*)XMALLOC(strLen + 1, x509->heap, - DYNAMIC_TYPE_ALTNAME); - if (dnsEntry->name == NULL) { - WOLFSSL_MSG("\tOut of Memory"); - XFREE(dnsEntry, x509->heap, DYNAMIC_TYPE_ALTNAME); - return MEMORY_E; - } - dnsEntry->len = strLen; - XMEMCPY(dnsEntry->name, cur->name, strLen); - dnsEntry->name[strLen] = '\0'; - - dnsEntry->next = x509->altNames; - x509->altNames = dnsEntry; - } - cur = cur->next; - } - } -#endif /* OPENSSL_EXTRA || OPENSSL_EXTRA_X509_SMALL */ - - x509->isCa = dCert->isCA; -#if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - x509->pathLength = dCert->pathLength; - x509->keyUsage = dCert->extKeyUsage; - - x509->CRLdistSet = dCert->extCRLdistSet; - x509->CRLdistCrit = dCert->extCRLdistCrit; - x509->CRLInfo = dCert->extCrlInfo; - x509->CRLInfoSz = dCert->extCrlInfoSz; - x509->authInfoSet = dCert->extAuthInfoSet; - x509->authInfoCrit = dCert->extAuthInfoCrit; - if (dCert->extAuthInfo != NULL && dCert->extAuthInfoSz > 0) { - x509->authInfo = (byte*)XMALLOC(dCert->extAuthInfoSz, x509->heap, - DYNAMIC_TYPE_X509_EXT); - if (x509->authInfo != NULL) { - XMEMCPY(x509->authInfo, dCert->extAuthInfo, dCert->extAuthInfoSz); - x509->authInfoSz = dCert->extAuthInfoSz; - } - else { - ret = MEMORY_E; - } - } - #if defined(OPENSSL_ALL) || defined(WOLFSSL_QT) - if (dCert->extAuthInfoCaIssuer != NULL && dCert->extAuthInfoCaIssuerSz > 0) { - x509->authInfoCaIssuer = (byte*)XMALLOC(dCert->extAuthInfoCaIssuerSz, x509->heap, - DYNAMIC_TYPE_X509_EXT); - if (x509->authInfoCaIssuer != NULL) { - XMEMCPY(x509->authInfoCaIssuer, dCert->extAuthInfoCaIssuer, dCert->extAuthInfoCaIssuerSz); - x509->authInfoCaIssuerSz = dCert->extAuthInfoCaIssuerSz; - } - else { - ret = MEMORY_E; - } - } - #endif - x509->basicConstSet = dCert->extBasicConstSet; - x509->basicConstCrit = dCert->extBasicConstCrit; - x509->basicConstPlSet = dCert->pathLengthSet; - x509->subjAltNameSet = dCert->extSubjAltNameSet; - x509->subjAltNameCrit = dCert->extSubjAltNameCrit; - x509->authKeyIdSet = dCert->extAuthKeyIdSet; - x509->authKeyIdCrit = dCert->extAuthKeyIdCrit; - if (dCert->extAuthKeyIdSrc != NULL && dCert->extAuthKeyIdSz != 0) { - x509->authKeyId = (byte*)XMALLOC(dCert->extAuthKeyIdSz, x509->heap, - DYNAMIC_TYPE_X509_EXT); - if (x509->authKeyId != NULL) { - XMEMCPY(x509->authKeyId, - dCert->extAuthKeyIdSrc, dCert->extAuthKeyIdSz); - x509->authKeyIdSz = dCert->extAuthKeyIdSz; - } - else - ret = MEMORY_E; - } - x509->subjKeyIdSet = dCert->extSubjKeyIdSet; - x509->subjKeyIdCrit = dCert->extSubjKeyIdCrit; - if (dCert->extSubjKeyIdSrc != NULL && dCert->extSubjKeyIdSz != 0) { - x509->subjKeyId = (byte*)XMALLOC(dCert->extSubjKeyIdSz, x509->heap, - DYNAMIC_TYPE_X509_EXT); - if (x509->subjKeyId != NULL) { - XMEMCPY(x509->subjKeyId, - dCert->extSubjKeyIdSrc, dCert->extSubjKeyIdSz); - x509->subjKeyIdSz = dCert->extSubjKeyIdSz; - } - else - ret = MEMORY_E; - } - x509->keyUsageSet = dCert->extKeyUsageSet; - x509->keyUsageCrit = dCert->extKeyUsageCrit; - if (dCert->extExtKeyUsageSrc != NULL && dCert->extExtKeyUsageSz > 0) { - x509->extKeyUsageSrc = (byte*)XMALLOC(dCert->extExtKeyUsageSz, - x509->heap, DYNAMIC_TYPE_X509_EXT); - if (x509->extKeyUsageSrc != NULL) { - XMEMCPY(x509->extKeyUsageSrc, dCert->extExtKeyUsageSrc, - dCert->extExtKeyUsageSz); - x509->extKeyUsageSz = dCert->extExtKeyUsageSz; - x509->extKeyUsageCrit = dCert->extExtKeyUsageCrit; - x509->extKeyUsageCount = dCert->extExtKeyUsageCount; - } - else { - ret = MEMORY_E; - } - } - #if defined(WOLFSSL_SEP) || defined(WOLFSSL_QT) - x509->certPolicySet = dCert->extCertPolicySet; - x509->certPolicyCrit = dCert->extCertPolicyCrit; - #endif /* WOLFSSL_SEP || WOLFSSL_QT */ - #ifdef WOLFSSL_CERT_EXT - { - int i; - for (i = 0; i < dCert->extCertPoliciesNb && i < MAX_CERTPOL_NB; i++) - XMEMCPY(x509->certPolicies[i], dCert->extCertPolicies[i], - MAX_CERTPOL_SZ); - x509->certPoliciesNb = dCert->extCertPoliciesNb; - } - #endif /* WOLFSSL_CERT_EXT */ -#endif /* OPENSSL_EXTRA || OPENSSL_EXTRA_X509_SMALL */ -#if defined(HAVE_ECC) || defined(HAVE_ED25519) || defined(HAVE_ED448) - x509->pkCurveOID = dCert->pkCurveOID; -#endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - - return ret; -} - -#endif /* KEEP_PEER_CERT || SESSION_CERTS */ - -#if defined(HAVE_CERTIFICATE_STATUS_REQUEST) || \ - (defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2) && !defined(WOLFSSL_NO_TLS12)) -static int ProcessCSR(WOLFSSL* ssl, byte* input, word32* inOutIdx, - word32 status_length) -{ - int ret = 0; - OcspRequest* request; - - #ifdef WOLFSSL_SMALL_STACK - CertStatus* status; - OcspResponse* response; - #else - CertStatus status[1]; - OcspResponse response[1]; - #endif - - do { - #ifdef HAVE_CERTIFICATE_STATUS_REQUEST - if (ssl->status_request) { - request = (OcspRequest*)TLSX_CSR_GetRequest(ssl->extensions); - ssl->status_request = 0; - break; - } - #endif - - #ifdef HAVE_CERTIFICATE_STATUS_REQUEST_V2 - if (ssl->status_request_v2) { - request = (OcspRequest*)TLSX_CSR2_GetRequest(ssl->extensions, - WOLFSSL_CSR2_OCSP, 0); - ssl->status_request_v2 = 0; - break; - } - #endif - - return BUFFER_ERROR; - } while(0); - - if (request == NULL) - return BAD_CERTIFICATE_STATUS_ERROR; /* not expected */ - - #ifdef WOLFSSL_SMALL_STACK - status = (CertStatus*)XMALLOC(sizeof(CertStatus), ssl->heap, - DYNAMIC_TYPE_OCSP_STATUS); - response = (OcspResponse*)XMALLOC(sizeof(OcspResponse), ssl->heap, - DYNAMIC_TYPE_OCSP_REQUEST); - - if (status == NULL || response == NULL) { - if (status) - XFREE(status, NULL, DYNAMIC_TYPE_OCSP_STATUS); - if (response) - XFREE(response, NULL, DYNAMIC_TYPE_OCSP_REQUEST); - - return MEMORY_ERROR; - } - #endif - - InitOcspResponse(response, status, input +*inOutIdx, status_length); - - if (OcspResponseDecode(response, ssl->ctx->cm, ssl->heap, 0) != 0) - ret = BAD_CERTIFICATE_STATUS_ERROR; - else if (CompareOcspReqResp(request, response) != 0) - ret = BAD_CERTIFICATE_STATUS_ERROR; - else if (response->responseStatus != OCSP_SUCCESSFUL) - ret = BAD_CERTIFICATE_STATUS_ERROR; - else if (response->status->status == CERT_REVOKED) - ret = OCSP_CERT_REVOKED; - else if (response->status->status != CERT_GOOD) - ret = BAD_CERTIFICATE_STATUS_ERROR; - - *inOutIdx += status_length; - - #ifdef WOLFSSL_SMALL_STACK - XFREE(status, ssl->heap, DYNAMIC_TYPE_OCSP_STATUS); - XFREE(response, ssl->heap, DYNAMIC_TYPE_OCSP_REQUEST); - #endif - - return ret; -} -#endif - - - -#ifdef HAVE_PK_CALLBACKS - -#ifdef HAVE_ECC - static int SigPkCbEccVerify(const unsigned char* sig, unsigned int sigSz, - const unsigned char* hash, unsigned int hashSz, - const unsigned char* keyDer, unsigned int keySz, - int* result, void* ctx) - { - int ret = NOT_COMPILED_IN; - WOLFSSL* ssl = (WOLFSSL*)ctx; - - if (ssl && ssl->ctx->EccVerifyCb) { - ret = ssl->ctx->EccVerifyCb(ssl, sig, sigSz, hash, hashSz, - keyDer, keySz, result, ssl->EccVerifyCtx); - } - return ret; - } -#endif -#ifndef NO_RSA - static int SigPkCbRsaVerify(unsigned char* sig, unsigned int sigSz, - unsigned char** out, const unsigned char* keyDer, unsigned int keySz, - void* ctx) - { - int ret = NOT_COMPILED_IN; - WOLFSSL* ssl = (WOLFSSL*)ctx; - - if (ssl && ssl->ctx->RsaVerifyCb) { - ret = ssl->ctx->RsaVerifyCb(ssl, sig, sigSz, out, keyDer, keySz, - ssl->RsaVerifyCtx); - } - return ret; - } -#endif - -int InitSigPkCb(WOLFSSL* ssl, SignatureCtx* sigCtx) -{ - if (ssl == NULL || sigCtx == NULL) - return BAD_FUNC_ARG; - - /* only setup the verify callback if a PK is set */ -#ifdef HAVE_ECC - if (ssl->ctx->EccVerifyCb) { - sigCtx->pkCbEcc = SigPkCbEccVerify; - sigCtx->pkCtxEcc = ssl; - } -#endif -#ifndef NO_RSA - /* only setup the verify callback if a PK is set */ - if (ssl->ctx->RsaVerifyCb) { - sigCtx->pkCbRsa = SigPkCbRsaVerify; - sigCtx->pkCtxRsa = ssl; - } -#endif - - return 0; -} - -#endif /* HAVE_PK_CALLBACKS */ - - -#if !defined(NO_WOLFSSL_CLIENT) || !defined(WOLFSSL_NO_CLIENT_AUTH) -static void DoCertFatalAlert(WOLFSSL* ssl, int ret) -{ - int alertWhy; - if (ssl == NULL || ret == 0) { - return; - } - - /* Determine alert reason */ - alertWhy = bad_certificate; - if (ret == ASN_AFTER_DATE_E || ret == ASN_BEFORE_DATE_E) { - alertWhy = certificate_expired; - } -#if (defined(OPENSSL_ALL) || defined(WOLFSSL_APACHE_HTTPD)) - else if (ret == CRL_CERT_REVOKED) { - alertWhy = certificate_revoked; - } -#endif - else if (ret == NO_PEER_CERT) { -#ifdef WOLFSSL_TLS13 - if (ssl->options.tls1_3) { - alertWhy = certificate_required; - } - else -#endif - { - alertWhy = handshake_failure; - } - } - - /* send fatal alert and mark connection closed */ - SendAlert(ssl, alert_fatal, alertWhy); /* try to send */ - ssl->options.isClosed = 1; -} - -/* WOLFSSL_ALWAYS_VERIFY_CB: Use verify callback for success or failure cases */ -/* WOLFSSL_VERIFY_CB_ALL_CERTS: Issue callback for all intermediate certificates */ - -/* Callback is issued for certificate presented in TLS Certificate (11) packet. - * The intermediates are done first then peer leaf cert last. Use the - * store->error_depth member to determine index (0=peer, >1 intermediates) - */ - -int DoVerifyCallback(WOLFSSL_CERT_MANAGER* cm, WOLFSSL* ssl, int ret, - ProcPeerCertArgs* args) -{ - int verify_ok = 0, use_cb = 0; - void *heap = (ssl != NULL) ? ssl->heap : cm->heap; - - /* Determine if verify was okay */ - if (ret == 0) { - verify_ok = 1; - } - - /* Determine if verify callback should be used */ - if (ret != 0) { - if ((ssl != NULL) && (!ssl->options.verifyNone)) { - use_cb = 1; /* always report errors */ - } - } -#ifdef WOLFSSL_ALWAYS_VERIFY_CB - /* always use verify callback on peer leaf cert */ - if (args->certIdx == 0) { - use_cb = 1; - } -#endif -#ifdef WOLFSSL_VERIFY_CB_ALL_CERTS - /* perform verify callback on other intermediate certs (not just peer) */ - if (args->certIdx > 0) { - use_cb = 1; - } -#endif -#if defined(OPENSSL_EXTRA) - /* perform domain name check on the peer certificate */ - if (args->dCertInit && args->dCert && (ssl != NULL) && - ssl->param && ssl->param->hostName[0]) { - /* If altNames names is present, then subject common name is ignored */ - if (args->dCert->altNames != NULL) { - if (CheckAltNames(args->dCert, ssl->param->hostName) == 0 ) { - if (ret == 0) { - ret = DOMAIN_NAME_MISMATCH; - } - } - } - else { - if (args->dCert->subjectCN) { - if (MatchDomainName(args->dCert->subjectCN, - args->dCert->subjectCNLen, - ssl->param->hostName) == 0) { - if (ret == 0) { - ret = DOMAIN_NAME_MISMATCH; - } - } - } - } - } - - /* perform IP address check on the peer certificate */ - if ((args->dCertInit != 0) && (args->dCert != NULL) && (ssl != NULL) && - (ssl->param != NULL) && (XSTRLEN(ssl->param->ipasc) > 0)) { - if (CheckIPAddr(args->dCert, ssl->param->ipasc) != 0) { - if (ret == 0) { - ret = IPADDR_MISMATCH; - } - } - } -#endif - /* if verify callback has been set */ - if ((use_cb && (ssl != NULL) && ((ssl->verifyCallback != NULL) - #ifdef OPENSSL_ALL - || (ssl->ctx->verifyCertCb != NULL) - #endif - )) - #ifndef NO_WOLFSSL_CM_VERIFY - || (cm->verifyCallback != NULL) - #endif - ) { - int verifyFail = 0; - #ifdef WOLFSSL_SMALL_STACK - WOLFSSL_X509_STORE_CTX* store; - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - WOLFSSL_X509* x509; - #endif - char* domain = NULL; - #else - WOLFSSL_X509_STORE_CTX store[1]; - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - WOLFSSL_X509 x509[1]; - #endif - char domain[ASN_NAME_MAX]; - #endif - - #ifdef WOLFSSL_SMALL_STACK - store = (WOLFSSL_X509_STORE_CTX*)XMALLOC( - sizeof(WOLFSSL_X509_STORE_CTX), heap, DYNAMIC_TYPE_X509_STORE); - if (store == NULL) { - return MEMORY_E; - } - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - x509 = (WOLFSSL_X509*)XMALLOC(sizeof(WOLFSSL_X509), heap, - DYNAMIC_TYPE_X509); - if (x509 == NULL) { - XFREE(store, heap, DYNAMIC_TYPE_X509); - return MEMORY_E; - } - #endif - domain = (char*)XMALLOC(ASN_NAME_MAX, heap, DYNAMIC_TYPE_STRING); - if (domain == NULL) { - XFREE(store, heap, DYNAMIC_TYPE_X509); - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - XFREE(x509, heap, DYNAMIC_TYPE_X509); - #endif - return MEMORY_E; - } - #endif /* WOLFSSL_SMALL_STACK */ - - XMEMSET(store, 0, sizeof(WOLFSSL_X509_STORE_CTX)); - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - XMEMSET(x509, 0, sizeof(WOLFSSL_X509)); - #endif - domain[0] = '\0'; - - /* build subject CN as string to return in store */ - if (args->dCertInit && args->dCert && args->dCert->subjectCN) { - int subjectCNLen = args->dCert->subjectCNLen; - if (subjectCNLen > ASN_NAME_MAX-1) - subjectCNLen = ASN_NAME_MAX-1; - if (subjectCNLen > 0) { - XMEMCPY(domain, args->dCert->subjectCN, subjectCNLen); - domain[subjectCNLen] = '\0'; - } - } - - store->error = ret; - store->error_depth = args->certIdx; - store->discardSessionCerts = 0; - store->domain = domain; - store->userCtx = (ssl != NULL) ? ssl->verifyCbCtx : cm; - store->certs = args->certs; - store->totalCerts = args->totalCerts; - #if defined(HAVE_EX_DATA) || defined(FORTRESS) - if (wolfSSL_CRYPTO_set_ex_data(&store->ex_data, 0, ssl) - != WOLFSSL_SUCCESS) { - WOLFSSL_MSG("Failed to store ssl context in WOLFSSL_X509_STORE_CTX"); - } - #endif - - if (ssl != NULL) { - #if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER) - if (ssl->ctx->x509_store_pt != NULL) { - store->store = ssl->ctx->x509_store_pt; - } - else { - store->store = &ssl->ctx->x509_store; - } - #if defined(OPENSSL_EXTRA) - store->depth = args->count; - store->param = (WOLFSSL_X509_VERIFY_PARAM*)XMALLOC( - sizeof(WOLFSSL_X509_VERIFY_PARAM), - heap, DYNAMIC_TYPE_OPENSSL); - if (store->param == NULL) { - #ifdef WOLFSSL_SMALL_STACK - XFREE(domain, heap, DYNAMIC_TYPE_STRING); - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - XFREE(x509, heap, DYNAMIC_TYPE_X509); - #endif - XFREE(store, heap, DYNAMIC_TYPE_X509_STORE); - #endif - return MEMORY_E; - } - XMEMSET(store->param, 0, sizeof(WOLFSSL_X509_VERIFY_PARAM)); - /* Overwrite with non-default param values in SSL */ - if (ssl->param) { - if (ssl->param->check_time) - store->param->check_time = ssl->param->check_time; - - if (ssl->param->flags) - store->param->flags = ssl->param->flags; - - if (ssl->param->hostName[0]) - XMEMCPY(store->param->hostName, ssl->param->hostName, - WOLFSSL_HOST_NAME_MAX); - - } - #endif /* defined(OPENSSL_EXTRA) */ - #endif /* defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER)*/ - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - #ifdef KEEP_PEER_CERT - if (args->certIdx == 0) { - store->current_cert = &ssl->peerCert; /* use existing X509 */ - } - else - #endif - { - InitX509(x509, 0, heap); - if (CopyDecodedToX509(x509, args->dCert) == 0) { - store->current_cert = x509; - } - else { - FreeX509(x509); - } - } - #endif - #ifdef SESSION_CERTS - store->sesChain = &ssl->session.chain; - #endif - } - #ifndef NO_WOLFSSL_CM_VERIFY - /* non-zero return code indicates failure override */ - if ((cm != NULL) && (cm->verifyCallback != NULL)) { - store->userCtx = cm; - if (cm->verifyCallback(verify_ok, store)) { - if (ret != 0) { - WOLFSSL_MSG("Verify CM callback overriding error!"); - ret = 0; - } - } - else { - verifyFail = 1; - } - } - #endif - - if (ssl != NULL) { - #ifdef OPENSSL_ALL - /* non-zero return code indicates failure override */ - if (ssl->ctx->verifyCertCb) { - if (ssl->ctx->verifyCertCb(store, ssl->ctx->verifyCertCbArg)) { - if (ret != 0) { - WOLFSSL_MSG("Verify Cert callback overriding error!"); - ret = 0; - } - } - else { - verifyFail = 1; - } - } - #endif - - /* non-zero return code indicates failure override */ - if (ssl->verifyCallback) { - if (ssl->verifyCallback(verify_ok, store)) { - if (ret != 0) { - WOLFSSL_MSG("Verify callback overriding error!"); - ret = 0; - } - } - else { - verifyFail = 1; - } - } - } - - if (verifyFail) { - /* induce error if one not present */ - if (ret == 0) { - ret = VERIFY_CERT_ERROR; - } - - /* mark as verify error */ - args->verifyErr = 1; - } - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - if (args->certIdx > 0) - FreeX509(x509); - #endif - #if defined(SESSION_CERTS) && defined(OPENSSL_EXTRA) - wolfSSL_sk_X509_free(store->chain); - store->chain = NULL; - #endif - #ifdef SESSION_CERTS - if ((ssl != NULL) && (store->discardSessionCerts)) { - WOLFSSL_MSG("Verify callback requested discard sess certs"); - ssl->session.chain.count = 0; - #ifdef WOLFSSL_ALT_CERT_CHAINS - ssl->session.altChain.count = 0; - #endif - } - #endif /* SESSION_CERTS */ -#ifdef OPENSSL_EXTRA - if ((ssl != NULL) && (store->param)) { - XFREE(store->param, heap, DYNAMIC_TYPE_OPENSSL); - } -#endif - #ifdef WOLFSSL_SMALL_STACK - XFREE(domain, heap, DYNAMIC_TYPE_STRING); - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - XFREE(x509, heap, DYNAMIC_TYPE_X509); - #endif - XFREE(store, heap, DYNAMIC_TYPE_X509_STORE); - #endif - } - - (void)heap; - - return ret; -} - -static void FreeProcPeerCertArgs(WOLFSSL* ssl, void* pArgs) -{ - ProcPeerCertArgs* args = (ProcPeerCertArgs*)pArgs; - - (void)ssl; - - if (args->certs) { - XFREE(args->certs, ssl->heap, DYNAMIC_TYPE_DER); - args->certs = NULL; - } -#ifdef WOLFSSL_TLS13 - if (args->exts) { - XFREE(args->exts, ssl->heap, DYNAMIC_TYPE_CERT_EXT); - args->exts = NULL; - } -#endif - if (args->dCert) { - if (args->dCertInit) { - FreeDecodedCert(args->dCert); - args->dCertInit = 0; - } - XFREE(args->dCert, ssl->heap, DYNAMIC_TYPE_DCERT); - args->dCert = NULL; - } -} - -static int ProcessPeerCertParse(WOLFSSL* ssl, ProcPeerCertArgs* args, - int certType, int verify, byte** pSubjectHash, int* pAlreadySigner) -{ - int ret = 0; - buffer* cert; - byte* subjectHash = NULL; - int alreadySigner = 0; -#ifdef WOLFSSL_SMALL_CERT_VERIFY - int sigRet = 0; -#endif - - if (ssl == NULL || args == NULL) - return BAD_FUNC_ARG; - - /* check to make sure certificate index is valid */ - if (args->certIdx > args->count) - return BUFFER_E; - - /* check if returning from non-blocking OCSP */ - /* skip this section because cert is already initialized and parsed */ -#ifdef WOLFSSL_NONBLOCK_OCSP - if (args->lastErr == OCSP_WANT_READ) { - args->lastErr = 0; /* clear error */ - return 0; - } -#endif - -#ifdef WOLFSSL_TRUST_PEER_CERT - /* we have trusted peer */ - if (args->haveTrustPeer) { - return 0; - } -#endif - - /* get certificate buffer */ - cert = &args->certs[args->certIdx]; - -#ifdef WOLFSSL_SMALL_CERT_VERIFY - if (verify == VERIFY) { - /* for small cert verify, release decoded cert during signature check to - reduce peak memory usage */ - if (args->dCert != NULL) { - if (args->dCertInit) { - FreeDecodedCert(args->dCert); - args->dCertInit = 0; - } - XFREE(args->dCert, ssl->heap, DYNAMIC_TYPE_DCERT); - args->dCert = NULL; - } - - /* perform cert parsing and signature check */ - sigRet = CheckCertSignature(cert->buffer, cert->length, - ssl->heap, ssl->ctx->cm); - /* fail on errors here after the ParseCertRelative call, so dCert is populated */ - - /* verify name only in ParseCertRelative below, signature check done */ - verify = VERIFY_NAME; - } -#endif /* WOLFSSL_SMALL_CERT_VERIFY */ - - /* make sure the decoded cert structure is allocated and initialized */ - if (!args->dCertInit - #ifdef WOLFSSL_SMALL_CERT_VERIFY - || args->dCert == NULL - #endif - ) { - #ifdef WOLFSSL_SMALL_CERT_VERIFY - if (args->dCert == NULL) { - args->dCert = (DecodedCert*)XMALLOC( - sizeof(DecodedCert), ssl->heap, - DYNAMIC_TYPE_DCERT); - if (args->dCert == NULL) { - return MEMORY_E; - } - } - #endif - - InitDecodedCert(args->dCert, cert->buffer, cert->length, ssl->heap); - - args->dCertInit = 1; - args->dCert->sigCtx.devId = ssl->devId; - #ifdef WOLFSSL_ASYNC_CRYPT - args->dCert->sigCtx.asyncCtx = ssl; - #endif - - #ifdef HAVE_PK_CALLBACKS - /* setup the PK callback context */ - ret = InitSigPkCb(ssl, &args->dCert->sigCtx); - if (ret != 0) - return ret; - #endif - } - - /* Parse Certificate */ - ret = ParseCertRelative(args->dCert, certType, verify, ssl->ctx->cm); - /* perform below checks for date failure cases */ - if (ret == 0 || ret == ASN_BEFORE_DATE_E || ret == ASN_AFTER_DATE_E) { - /* get subject and determine if already loaded */ - #ifndef NO_SKID - if (args->dCert->extAuthKeyIdSet) - subjectHash = args->dCert->extSubjKeyId; - else - #endif - subjectHash = args->dCert->subjectHash; - alreadySigner = AlreadySigner(ssl->ctx->cm, subjectHash); - } - -#ifdef WOLFSSL_SMALL_CERT_VERIFY - /* get signature check failures from above */ - if (ret == 0) - ret = sigRet; -#endif - - if (pSubjectHash) - *pSubjectHash = subjectHash; - if (pAlreadySigner) - *pAlreadySigner = alreadySigner; - -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, - args->dCert->sigCtx.asyncDev); - } -#endif - - return ret; -} - -/* Check key sizes for certs. Is redundant check since - ProcessBuffer also performs this check. */ -static int ProcessPeerCertCheckKey(WOLFSSL* ssl, ProcPeerCertArgs* args) -{ - int ret = 0; - - if (ssl->options.verifyNone) { - return ret; - } - - switch (args->dCert->keyOID) { - #ifndef NO_RSA - case RSAk: - if (ssl->options.minRsaKeySz < 0 || - args->dCert->pubKeySize < - (word16)ssl->options.minRsaKeySz) { - WOLFSSL_MSG( - "RSA key size in cert chain error"); - ret = RSA_KEY_SIZE_E; - } - break; - #endif /* !NO_RSA */ - #ifdef HAVE_ECC - case ECDSAk: - if (ssl->options.minEccKeySz < 0 || - args->dCert->pubKeySize < - (word16)ssl->options.minEccKeySz) { - WOLFSSL_MSG( - "ECC key size in cert chain error"); - ret = ECC_KEY_SIZE_E; - } - break; - #endif /* HAVE_ECC */ - #ifdef HAVE_ED25519 - case ED25519k: - if (ssl->options.minEccKeySz < 0 || - ED25519_KEY_SIZE < (word16)ssl->options.minEccKeySz) { - WOLFSSL_MSG( - "ECC key size in cert chain error"); - ret = ECC_KEY_SIZE_E; - } - break; - #endif /* HAVE_ED25519 */ - #ifdef HAVE_ED448 - case ED448k: - if (ssl->options.minEccKeySz < 0 || - ED448_KEY_SIZE < (word16)ssl->options.minEccKeySz) { - WOLFSSL_MSG( - "ECC key size in cert chain error"); - ret = ECC_KEY_SIZE_E; - } - break; - #endif /* HAVE_ED448 */ - default: - WOLFSSL_MSG("Key size not checked"); - /* key not being checked for size if not in - switch */ - break; - } - - return ret; -} - -int ProcessPeerCerts(WOLFSSL* ssl, byte* input, word32* inOutIdx, - word32 totalSz) -{ - int ret = 0; -#ifdef WOLFSSL_ASYNC_CRYPT - ProcPeerCertArgs* args = (ProcPeerCertArgs*)ssl->async.args; - typedef char args_test[sizeof(ssl->async.args) >= sizeof(*args) ? 1 : -1]; - (void)sizeof(args_test); -#elif defined(WOLFSSL_NONBLOCK_OCSP) - ProcPeerCertArgs* args = ssl->nonblockarg; -#elif defined(WOLFSSL_SMALL_STACK) - ProcPeerCertArgs* args = NULL; -#else - ProcPeerCertArgs args[1]; -#endif - byte* subjectHash = NULL; - int alreadySigner = 0; - - WOLFSSL_ENTER("ProcessPeerCerts"); - -#ifdef WOLFSSL_ASYNC_CRYPT - ret = wolfSSL_AsyncPop(ssl, &ssl->options.asyncState); - if (ret != WC_NOT_PENDING_E) { - /* Check for error */ - if (ret < 0) - goto exit_ppc; - } - else -#elif defined(WOLFSSL_NONBLOCK_OCSP) - if (args == NULL) { - args = (ProcPeerCertArgs*)XMALLOC( - sizeof(ProcPeerCertArgs), ssl->heap, DYNAMIC_TYPE_TMP_BUFFER); - if (args == NULL) { - ERROR_OUT(MEMORY_E, exit_ppc); - } - } - if (ssl->nonblockarg == NULL) /* new args */ -#elif defined(WOLFSSL_SMALL_STACK) - args = (ProcPeerCertArgs*)XMALLOC( - sizeof(ProcPeerCertArgs), ssl->heap, DYNAMIC_TYPE_TMP_BUFFER); - if (args == NULL) { - ERROR_OUT(MEMORY_E, exit_ppc); - } -#endif - { - /* Reset state */ - ret = 0; - ssl->options.asyncState = TLS_ASYNC_BEGIN; - XMEMSET(args, 0, sizeof(ProcPeerCertArgs)); - args->idx = *inOutIdx; - args->begin = *inOutIdx; - #ifdef WOLFSSL_ASYNC_CRYPT - ssl->async.freeArgs = FreeProcPeerCertArgs; - #elif defined(WOLFSSL_NONBLOCK_OCSP) - ssl->nonblockarg = args; - #endif - } - - switch (ssl->options.asyncState) - { - case TLS_ASYNC_BEGIN: - { - word32 listSz; - - #ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) - AddPacketName(ssl, "Certificate"); - if (ssl->toInfoOn) - AddLateName("Certificate", &ssl->timeoutInfo); - #endif - - #ifdef WOLFSSL_TLS13 - if (ssl->options.tls1_3) { - byte ctxSz; - - /* Certificate Request Context */ - if ((args->idx - args->begin) + OPAQUE8_LEN > totalSz) - ERROR_OUT(BUFFER_ERROR, exit_ppc); - ctxSz = *(input + args->idx); - args->idx++; - if ((args->idx - args->begin) + ctxSz > totalSz) - ERROR_OUT(BUFFER_ERROR, exit_ppc); - #ifndef NO_WOLFSSL_CLIENT - /* Must be empty when received from server. */ - if (ssl->options.side == WOLFSSL_CLIENT_END) { - if (ctxSz != 0) { - ERROR_OUT(INVALID_CERT_CTX_E, exit_ppc); - } - } - #endif - #ifndef NO_WOLFSSL_SERVER - /* Must contain value sent in request. */ - if (ssl->options.side == WOLFSSL_SERVER_END) { - if (ssl->options.handShakeState != HANDSHAKE_DONE && - ctxSz != 0) { - ERROR_OUT(INVALID_CERT_CTX_E, exit_ppc); - } - else if (ssl->options.handShakeState == HANDSHAKE_DONE) { - #ifdef WOLFSSL_POST_HANDSHAKE_AUTH - CertReqCtx* curr = ssl->certReqCtx; - CertReqCtx* prev = NULL; - while (curr != NULL) { - if ((ctxSz == curr->len) && - XMEMCMP(&curr->ctx, input + args->idx, ctxSz) - == 0) { - if (prev != NULL) - prev->next = curr->next; - else - ssl->certReqCtx = curr->next; - XFREE(curr, ssl->heap, - DYNAMIC_TYPE_TMP_BUFFER); - break; - } - prev = curr; - curr = curr->next; - } - if (curr == NULL) - #endif - ERROR_OUT(INVALID_CERT_CTX_E, exit_ppc); - } - } - #endif - args->idx += ctxSz; - - #ifdef OPENSSL_EXTRA - /* allocate buffer for cert extensions */ - args->exts = (buffer*)XMALLOC(sizeof(buffer) * - (ssl->verifyDepth + 1), ssl->heap, DYNAMIC_TYPE_CERT_EXT); - if (args->exts == NULL) { - ERROR_OUT(MEMORY_E, exit_ppc); - } - #else - /* allocate buffer for cert extensions */ - args->exts = (buffer*)XMALLOC(sizeof(buffer) * MAX_CHAIN_DEPTH, - ssl->heap, DYNAMIC_TYPE_CERT_EXT); - if (args->exts == NULL) { - ERROR_OUT(MEMORY_E, exit_ppc); - } - #endif - } - #endif - - /* allocate buffer for certs */ - #ifdef OPENSSL_EXTRA - args->certs = (buffer*)XMALLOC(sizeof(buffer) * - (ssl->verifyDepth + 1), ssl->heap, DYNAMIC_TYPE_DER); - if (args->certs == NULL) { - ERROR_OUT(MEMORY_E, exit_ppc); - } - XMEMSET(args->certs, 0, sizeof(buffer) * (ssl->verifyDepth + 1)); - #else - args->certs = (buffer*)XMALLOC(sizeof(buffer) * MAX_CHAIN_DEPTH, - ssl->heap, DYNAMIC_TYPE_DER); - if (args->certs == NULL) { - ERROR_OUT(MEMORY_E, exit_ppc); - } - XMEMSET(args->certs, 0, sizeof(buffer) * MAX_CHAIN_DEPTH); - #endif /* OPENSSL_EXTRA */ - - /* Certificate List */ - if ((args->idx - args->begin) + OPAQUE24_LEN > totalSz) { - ERROR_OUT(BUFFER_ERROR, exit_ppc); - } - c24to32(input + args->idx, &listSz); - args->idx += OPAQUE24_LEN; - if (listSz > MAX_CERTIFICATE_SZ) { - ERROR_OUT(BUFFER_ERROR, exit_ppc); - } - if ((args->idx - args->begin) + listSz != totalSz) { - ERROR_OUT(BUFFER_ERROR, exit_ppc); - } - - WOLFSSL_MSG("Loading peer's cert chain"); - /* first put cert chain into buffer so can verify top down - we're sent bottom up */ - while (listSz) { - word32 certSz; - - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - if (args->totalCerts > ssl->verifyDepth) { - ssl->peerVerifyRet = X509_V_ERR_CERT_CHAIN_TOO_LONG; - ERROR_OUT(MAX_CHAIN_ERROR, exit_ppc); - } - #else - if (args->totalCerts >= ssl->verifyDepth || - args->totalCerts >= MAX_CHAIN_DEPTH) { - ERROR_OUT(MAX_CHAIN_ERROR, exit_ppc); - } - #endif - - if ((args->idx - args->begin) + OPAQUE24_LEN > totalSz) { - ERROR_OUT(BUFFER_ERROR, exit_ppc); - } - - c24to32(input + args->idx, &certSz); - args->idx += OPAQUE24_LEN; - - if ((args->idx - args->begin) + certSz > totalSz) { - ERROR_OUT(BUFFER_ERROR, exit_ppc); - } - - args->certs[args->totalCerts].length = certSz; - args->certs[args->totalCerts].buffer = input + args->idx; - - #ifdef SESSION_CERTS - AddSessionCertToChain(&ssl->session.chain, - input + args->idx, certSz); - #endif /* SESSION_CERTS */ - - args->idx += certSz; - listSz -= certSz + CERT_HEADER_SZ; - - #ifdef WOLFSSL_TLS13 - /* Extensions */ - if (ssl->options.tls1_3) { - word16 extSz; - - if ((args->idx - args->begin) + OPAQUE16_LEN > totalSz) { - ERROR_OUT(BUFFER_ERROR, exit_ppc); - } - ato16(input + args->idx, &extSz); - args->idx += OPAQUE16_LEN; - if ((args->idx - args->begin) + extSz > totalSz) { - ERROR_OUT(BUFFER_ERROR, exit_ppc); - } - /* Store extension data info for later processing. */ - args->exts[args->totalCerts].length = extSz; - args->exts[args->totalCerts].buffer = input + args->idx; - args->idx += extSz; - listSz -= extSz + OPAQUE16_LEN; - ret = TLSX_Parse(ssl, args->exts[args->totalCerts].buffer, - args->exts[args->totalCerts].length, certificate, NULL); - if (ret < 0) { - ERROR_OUT(ret, exit_ppc); - } - } - #endif - - args->totalCerts++; - WOLFSSL_MSG("\tPut another cert into chain"); - } /* while (listSz) */ - - args->count = args->totalCerts; - args->certIdx = 0; /* select peer cert (first one) */ - - if (args->count == 0 && ssl->options.mutualAuth && - ssl->options.side == WOLFSSL_SERVER_END) { - ret = NO_PEER_CERT; - DoCertFatalAlert(ssl, ret); - } - - args->dCertInit = 0; - #ifndef WOLFSSL_SMALL_CERT_VERIFY - args->dCert = (DecodedCert*)XMALLOC(sizeof(DecodedCert), ssl->heap, - DYNAMIC_TYPE_DCERT); - if (args->dCert == NULL) { - ERROR_OUT(MEMORY_E, exit_ppc); - } - XMEMSET(args->dCert, 0, sizeof(DecodedCert)); - #endif - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_BUILD; - } /* case TLS_ASYNC_BEGIN */ - FALL_THROUGH; - - case TLS_ASYNC_BUILD: - { - if (args->count > 0) { - - /* check for trusted peer and get untrustedDepth */ - #if defined(WOLFSSL_TRUST_PEER_CERT) || defined(OPENSSL_EXTRA) - if (args->certIdx == 0) { - #ifdef WOLFSSL_TRUST_PEER_CERT - TrustedPeerCert* tp; - int matchType = WC_MATCH_NAME; - #endif - - ret = ProcessPeerCertParse(ssl, args, CERT_TYPE, NO_VERIFY, - &subjectHash, &alreadySigner); - if (ret != 0) - goto exit_ppc; - - #ifdef OPENSSL_EXTRA - /* Determine untrusted depth */ - if (!alreadySigner && (!args->dCert || - !args->dCertInit || !args->dCert->selfSigned)) { - args->untrustedDepth = 1; - } - #endif - - #ifdef WOLFSSL_TRUST_PEER_CERT - #ifndef NO_SKID - if (args->dCert->extAuthKeyIdSet) - matchType = WC_MATCH_SKID; - #endif - tp = GetTrustedPeer(ssl->ctx->cm, subjectHash, matchType); - WOLFSSL_MSG("Checking for trusted peer cert"); - - if (tp && MatchTrustedPeer(tp, args->dCert)) { - WOLFSSL_MSG("Found matching trusted peer cert"); - args->haveTrustPeer = 1; - } - else if (tp == NULL) { - /* no trusted peer cert */ - WOLFSSL_MSG("No matching trusted peer cert. Checking CAs"); - } - else { - WOLFSSL_MSG("Trusted peer cert did not match!"); - } - if (!args->haveTrustPeer) - #endif - { - /* free cert if not trusted peer */ - FreeDecodedCert(args->dCert); - args->dCertInit = 0; - } - } - #endif /* WOLFSSL_TRUST_PEER_CERT || OPENSSL_EXTRA */ - - /* check certificate up to peer's first */ - /* do not verify chain if trusted peer cert found */ - while (args->count > 1 - #ifdef WOLFSSL_TRUST_PEER_CERT - && !args->haveTrustPeer - #endif /* WOLFSSL_TRUST_PEER_CERT */ - ) { - int skipAddCA = 0; - - /* select last certificate */ - args->certIdx = args->count - 1; - - ret = ProcessPeerCertParse(ssl, args, CERT_TYPE, - !ssl->options.verifyNone ? VERIFY : NO_VERIFY, - &subjectHash, &alreadySigner); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) - goto exit_ppc; - #endif - if (ret == 0) { - ret = ProcessPeerCertCheckKey(ssl, args); - } - - if (ret == 0 && args->dCert->isCA == 0) { - WOLFSSL_MSG("Chain cert is not a CA, not adding as one"); - } - else if (ret == 0 && ssl->options.verifyNone) { - WOLFSSL_MSG("Chain cert not verified by option, " - "not adding as CA"); - } - else if (ret == 0) { - #ifdef OPENSSL_EXTRA - if (args->certIdx > args->untrustedDepth) { - args->untrustedDepth = (char)args->certIdx + 1; - } - #endif - - if (alreadySigner) { - WOLFSSL_MSG("Verified CA from chain and already had it"); - } - } - else { - WOLFSSL_MSG("Failed to verify CA from chain"); - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - ssl->peerVerifyRet = X509_V_ERR_INVALID_CA; - #endif - } - - #if defined(HAVE_OCSP) || defined(HAVE_CRL) - if (ret == 0) { - int doCrlLookup = 1; - #ifdef HAVE_OCSP - #ifdef HAVE_CERTIFICATE_STATUS_REQUEST_V2 - if (ssl->status_request_v2) { - ret = TLSX_CSR2_InitRequests(ssl->extensions, - args->dCert, 0, ssl->heap); - } - else /* skips OCSP and force CRL check */ - #endif /* HAVE_CERTIFICATE_STATUS_REQUEST_V2 */ - if (ssl->ctx->cm->ocspEnabled && - ssl->ctx->cm->ocspCheckAll) { - WOLFSSL_MSG("Doing Non Leaf OCSP check"); - ret = CheckCertOCSP_ex(ssl->ctx->cm->ocsp, - args->dCert, NULL, ssl); - #ifdef WOLFSSL_NONBLOCK_OCSP - if (ret == OCSP_WANT_READ) { - args->lastErr = ret; - goto exit_ppc; - } - #endif - doCrlLookup = (ret == OCSP_CERT_UNKNOWN); - if (ret != 0) { - doCrlLookup = 0; - WOLFSSL_MSG("\tOCSP Lookup not ok"); - } - } - #endif /* HAVE_OCSP */ - - #ifdef HAVE_CRL - if (ret == 0 && doCrlLookup && - ssl->ctx->cm->crlEnabled && - ssl->ctx->cm->crlCheckAll) { - WOLFSSL_MSG("Doing Non Leaf CRL check"); - ret = CheckCertCRL(ssl->ctx->cm->crl, args->dCert); - #ifdef WOLFSSL_NONBLOCK_OCSP - if (ret == OCSP_WANT_READ) { - args->lastErr = ret; - goto exit_ppc; - } - #endif - if (ret != 0) { - WOLFSSL_MSG("\tCRL check not ok"); - } - } - #endif /* HAVE_CRL */ - (void)doCrlLookup; - } - #endif /* HAVE_OCSP || HAVE_CRL */ - - /* Do verify callback */ - ret = DoVerifyCallback(ssl->ctx->cm, ssl, ret, args); - - #ifdef WOLFSSL_ALT_CERT_CHAINS - /* For alternate cert chain, its okay for a CA cert to fail - with ASN_NO_SIGNER_E here. The "alternate" certificate - chain mode only requires that the peer certificate - validate to a trusted CA */ - if (ret != 0 && args->dCert->isCA) { - if (ret == ASN_NO_SIGNER_E) { - if (!ssl->options.usingAltCertChain) { - WOLFSSL_MSG("Trying alternate cert chain"); - ssl->options.usingAltCertChain = 1; - } - - ret = 0; /* clear error and continue */ - } - - /* do not add to certificate manager */ - skipAddCA = 1; - } - #endif /* WOLFSSL_ALT_CERT_CHAINS */ - - /* If valid CA then add to Certificate Manager */ - if (ret == 0 && args->dCert->isCA && - !ssl->options.verifyNone && !skipAddCA) { - buffer* cert = &args->certs[args->certIdx]; - - /* Is valid CA */ - #if defined(SESSION_CERTS) && defined(WOLFSSL_ALT_CERT_CHAINS) - /* if using alternate chain, store the cert used */ - if (ssl->options.usingAltCertChain) { - AddSessionCertToChain(&ssl->session.altChain, - cert->buffer, cert->length); - } - #endif /* SESSION_CERTS && WOLFSSL_ALT_CERT_CHAINS */ - if (!alreadySigner) { - DerBuffer* add = NULL; - ret = AllocDer(&add, cert->length, CA_TYPE, ssl->heap); - if (ret < 0) - goto exit_ppc; - - XMEMCPY(add->buffer, cert->buffer, cert->length); - - /* CA already verified above in ParseCertRelative */ - WOLFSSL_MSG("Adding CA from chain"); - ret = AddCA(ssl->ctx->cm, &add, WOLFSSL_CHAIN_CA, - NO_VERIFY); - if (ret == WOLFSSL_SUCCESS) { - ret = 0; - } - } - } - - /* Handle error codes */ - if (ret != 0) { - if (!ssl->options.verifyNone) { - DoCertFatalAlert(ssl, ret); - } - ssl->error = ret; /* Report SSL error */ - - if (args->lastErr == 0) { - args->lastErr = ret; /* save error from last time */ - ret = 0; /* reset error */ - } - } - - FreeDecodedCert(args->dCert); - args->dCertInit = 0; - args->count--; - } /* while (count > 0 && !args->haveTrustPeer) */ - } /* if (count > 0) */ - - /* Check for error */ - if (ret != 0) { - goto exit_ppc; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_DO; - } /* case TLS_ASYNC_BUILD */ - FALL_THROUGH; - - case TLS_ASYNC_DO: - { - /* peer's, may not have one if blank client cert sent by TLSv1.2 */ - if (args->count > 0) { - WOLFSSL_MSG("Verifying Peer's cert"); - - /* select peer cert (first one) */ - args->certIdx = 0; - - ret = ProcessPeerCertParse(ssl, args, CERT_TYPE, - !ssl->options.verifyNone ? VERIFY : NO_VERIFY, - &subjectHash, &alreadySigner); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) - goto exit_ppc; - #endif - if (ret == 0) { - WOLFSSL_MSG("Verified Peer's cert"); - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - ssl->peerVerifyRet = X509_V_OK; - #endif - #if defined(SESSION_CERTS) && defined(WOLFSSL_ALT_CERT_CHAINS) - /* if using alternate chain, store the cert used */ - if (ssl->options.usingAltCertChain) { - buffer* cert = &args->certs[args->certIdx]; - AddSessionCertToChain(&ssl->session.altChain, - cert->buffer, cert->length); - } - #endif /* SESSION_CERTS && WOLFSSL_ALT_CERT_CHAINS */ - - /* check if fatal error */ - if (args->verifyErr) { - args->fatal = 1; - if (ret == 0) { - ret = args->lastErr; - } - } - else { - args->fatal = 0; - } - } - else if (ret == ASN_PARSE_E || ret == BUFFER_E) { - WOLFSSL_MSG("Got Peer cert ASN PARSE or BUFFER ERROR"); - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - SendAlert(ssl, alert_fatal, bad_certificate); - ssl->peerVerifyRet = X509_V_ERR_CERT_REJECTED; - #endif - args->fatal = 1; - } - else { - WOLFSSL_MSG("Failed to verify Peer's cert"); - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - ssl->peerVerifyRet = X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE; - #endif - if (ssl->verifyCallback) { - WOLFSSL_MSG( - "\tCallback override available, will continue"); - /* check if fatal error */ - args->fatal = (args->verifyErr) ? 1 : 0; - } - else { - WOLFSSL_MSG("\tNo callback override available, fatal"); - args->fatal = 1; - #ifdef OPENSSL_EXTRA - SendAlert(ssl, alert_fatal, bad_certificate); - #endif - } - } - - #ifdef HAVE_SECURE_RENEGOTIATION - if (args->fatal == 0 && !IsAtLeastTLSv1_3(ssl->version) - && ssl->secure_renegotiation - && ssl->secure_renegotiation->enabled) { - - if (IsEncryptionOn(ssl, 0)) { - /* compare against previous time */ - if (ssl->secure_renegotiation->subject_hash_set) { - if (XMEMCMP(args->dCert->subjectHash, - ssl->secure_renegotiation->subject_hash, - KEYID_SIZE) != 0) { - WOLFSSL_MSG( - "Peer sent different cert during scr, fatal"); - args->fatal = 1; - ret = SCR_DIFFERENT_CERT_E; - } - } - } - - /* cache peer's hash */ - if (args->fatal == 0) { - XMEMCPY(ssl->secure_renegotiation->subject_hash, - args->dCert->subjectHash, KEYID_SIZE); - ssl->secure_renegotiation->subject_hash_set = 1; - } - } - #endif /* HAVE_SECURE_RENEGOTIATION */ - } /* if (count > 0) */ - - /* Check for error */ - if (args->fatal && ret != 0) { - goto exit_ppc; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_VERIFY; - } /* case TLS_ASYNC_DO */ - FALL_THROUGH; - - case TLS_ASYNC_VERIFY: - { - if (args->count > 0) { - #if defined(HAVE_OCSP) || defined(HAVE_CRL) - if (args->fatal == 0) { - int doLookup = 1; - - if (ssl->options.side == WOLFSSL_CLIENT_END) { - #ifdef HAVE_CERTIFICATE_STATUS_REQUEST - if (ssl->status_request) { - args->fatal = TLSX_CSR_InitRequest(ssl->extensions, - args->dCert, ssl->heap); - doLookup = 0; - #if defined(WOLFSSL_TLS13) && !defined(NO_WOLFSSL_SERVER) - if (ssl->options.tls1_3) { - TLSX* ext = TLSX_Find(ssl->extensions, - TLSX_STATUS_REQUEST); - if (ext != NULL) { - word32 idx = 0; - CertificateStatusRequest* csr = - (CertificateStatusRequest*)ext->data; - ret = ProcessCSR(ssl, csr->response.buffer, - &idx, csr->response.length); - if (ret < 0) - goto exit_ppc; - } - } - #endif - } - #endif /* HAVE_CERTIFICATE_STATUS_REQUEST */ - #ifdef HAVE_CERTIFICATE_STATUS_REQUEST_V2 - if (ssl->status_request_v2) { - args->fatal = TLSX_CSR2_InitRequests(ssl->extensions, - args->dCert, 1, ssl->heap); - doLookup = 0; - } - #endif /* HAVE_CERTIFICATE_STATUS_REQUEST_V2 */ - } - - #ifdef HAVE_OCSP - if (doLookup && ssl->ctx->cm->ocspEnabled) { - WOLFSSL_MSG("Doing Leaf OCSP check"); - ret = CheckCertOCSP_ex(ssl->ctx->cm->ocsp, - args->dCert, NULL, ssl); - #ifdef WOLFSSL_NONBLOCK_OCSP - if (ret == OCSP_WANT_READ) { - goto exit_ppc; - } - #endif - doLookup = (ret == OCSP_CERT_UNKNOWN); - if (ret != 0) { - WOLFSSL_MSG("\tOCSP Lookup not ok"); - args->fatal = 0; - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - ssl->peerVerifyRet = X509_V_ERR_CERT_REJECTED; - #endif - } - } - #endif /* HAVE_OCSP */ - - #ifdef HAVE_CRL - if (doLookup && ssl->ctx->cm->crlEnabled) { - WOLFSSL_MSG("Doing Leaf CRL check"); - ret = CheckCertCRL(ssl->ctx->cm->crl, args->dCert); - #ifdef WOLFSSL_NONBLOCK_OCSP - if (ret == OCSP_WANT_READ) { - goto exit_ppc; - } - #endif - if (ret != 0) { - WOLFSSL_MSG("\tCRL check not ok"); - args->fatal = 0; - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - ssl->peerVerifyRet = X509_V_ERR_CERT_REJECTED; - #endif - } - } - #endif /* HAVE_CRL */ - (void)doLookup; - } - #endif /* HAVE_OCSP || HAVE_CRL */ - - #ifdef KEEP_PEER_CERT - if (args->fatal == 0) { - int copyRet = 0; - - #ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->secure_renegotiation && - ssl->secure_renegotiation->enabled) { - /* free old peer cert */ - FreeX509(&ssl->peerCert); - } - #endif - - /* set X509 format for peer cert */ - copyRet = CopyDecodedToX509(&ssl->peerCert, args->dCert); - if (copyRet == MEMORY_E) { - args->fatal = 1; - } - } - #endif /* KEEP_PEER_CERT */ - - #ifndef IGNORE_KEY_EXTENSIONS - #if defined(OPENSSL_EXTRA) - /* when compatibility layer is turned on and no verify is - * set then ignore the certificate key extension */ - if (args->dCert->extKeyUsageSet && - args->dCert->extKeyUsageCrit == 0 && - ssl->options.verifyNone) { - WOLFSSL_MSG("Not verifying certificate key usage"); - } - else - #endif - if (args->dCert->extKeyUsageSet) { - if ((ssl->specs.kea == rsa_kea) && - (ssl->options.side == WOLFSSL_CLIENT_END) && - (args->dCert->extKeyUsage & KEYUSE_KEY_ENCIPHER) == 0) { - ret = KEYUSE_ENCIPHER_E; - } - if ((ssl->specs.sig_algo == rsa_sa_algo || - (ssl->specs.sig_algo == ecc_dsa_sa_algo && - !ssl->specs.static_ecdh)) && - (args->dCert->extKeyUsage & KEYUSE_DIGITAL_SIG) == 0) { - WOLFSSL_MSG("KeyUse Digital Sig not set"); - ret = KEYUSE_SIGNATURE_E; - } - } - - #if defined(OPENSSL_EXTRA) - /* when compatibility layer is turned on and no verify is - * set then ignore the certificate key extension */ - if (args->dCert->extExtKeyUsageSet && - args->dCert->extExtKeyUsageCrit == 0 && - ssl->options.verifyNone) { - WOLFSSL_MSG("Not verifying certificate ext key usage"); - } - else - #endif - if (args->dCert->extExtKeyUsageSet) { - if (ssl->options.side == WOLFSSL_CLIENT_END) { - if ((args->dCert->extExtKeyUsage & - (EXTKEYUSE_ANY | EXTKEYUSE_SERVER_AUTH)) == 0) { - WOLFSSL_MSG("ExtKeyUse Server Auth not set"); - ret = EXTKEYUSE_AUTH_E; - } - } - else { - if ((args->dCert->extExtKeyUsage & - (EXTKEYUSE_ANY | EXTKEYUSE_CLIENT_AUTH)) == 0) { - WOLFSSL_MSG("ExtKeyUse Client Auth not set"); - ret = EXTKEYUSE_AUTH_E; - } - } - } - #endif /* IGNORE_KEY_EXTENSIONS */ - - if (args->fatal) { - ssl->error = ret; - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - SendAlert(ssl, alert_fatal, bad_certificate); - ssl->peerVerifyRet = X509_V_ERR_CERT_REJECTED; - #endif - goto exit_ppc; - } - - ssl->options.havePeerCert = 1; - - if (!ssl->options.verifyNone && ssl->buffers.domainName.buffer) { - #ifndef WOLFSSL_ALLOW_NO_CN_IN_SAN - /* Per RFC 5280 section 4.2.1.6, "Whenever such identities - * are to be bound into a certificate, the subject - * alternative name extension MUST be used." */ - if (args->dCert->altNames) { - if (CheckAltNames(args->dCert, - (char*)ssl->buffers.domainName.buffer) == 0 ) { - WOLFSSL_MSG("DomainName match on alt names failed"); - /* try to get peer key still */ - ret = DOMAIN_NAME_MISMATCH; - } - } - else { - if (MatchDomainName( - args->dCert->subjectCN, - args->dCert->subjectCNLen, - (char*)ssl->buffers.domainName.buffer) == 0) { - WOLFSSL_MSG("DomainName match on common name failed"); - ret = DOMAIN_NAME_MISMATCH; - } - } - #else /* WOLFSSL_ALL_NO_CN_IN_SAN */ - /* Old behavior. */ - if (MatchDomainName(args->dCert->subjectCN, - args->dCert->subjectCNLen, - (char*)ssl->buffers.domainName.buffer) == 0) { - WOLFSSL_MSG("DomainName match on common name failed"); - if (CheckAltNames(args->dCert, - (char*)ssl->buffers.domainName.buffer) == 0 ) { - WOLFSSL_MSG( - "DomainName match on alt names failed too"); - /* try to get peer key still */ - ret = DOMAIN_NAME_MISMATCH; - } - } - #endif /* WOLFSSL_ALL_NO_CN_IN_SAN */ - } - - /* decode peer key */ - switch (args->dCert->keyOID) { - #ifndef NO_RSA - case RSAk: - { - word32 keyIdx = 0; - int keyRet = 0; - - if (ssl->peerRsaKey == NULL) { - keyRet = AllocKey(ssl, DYNAMIC_TYPE_RSA, - (void**)&ssl->peerRsaKey); - } else if (ssl->peerRsaKeyPresent) { - keyRet = ReuseKey(ssl, DYNAMIC_TYPE_RSA, - ssl->peerRsaKey); - ssl->peerRsaKeyPresent = 0; - } - - if (keyRet != 0 || wc_RsaPublicKeyDecode( - args->dCert->publicKey, &keyIdx, ssl->peerRsaKey, - args->dCert->pubKeySize) != 0) { - ret = PEER_KEY_ERROR; - } - else { - ssl->peerRsaKeyPresent = 1; - #ifdef WOLFSSL_RENESAS_TSIP_TLS - /* copy encrypted tsip key index into ssl object */ - if (args->dCert->tsip_encRsaKeyIdx) { - if (!ssl->peerTsipEncRsaKeyIndex) { - ssl->peerTsipEncRsaKeyIndex = (byte*)XMALLOC( - TSIP_TLS_ENCPUBKEY_SZ_BY_CERTVRFY, - ssl->heap, DYNAMIC_TYPE_RSA); - if (!ssl->peerTsipEncRsaKeyIndex) { - args->lastErr = MEMORY_E; - goto exit_ppc; - } - } - - XMEMCPY(ssl->peerTsipEncRsaKeyIndex, - args->dCert->tsip_encRsaKeyIdx, - TSIP_TLS_ENCPUBKEY_SZ_BY_CERTVRFY); - } - #endif - #ifdef HAVE_PK_CALLBACKS - #ifndef NO_RSA - #ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->buffers.peerRsaKey.buffer) { - XFREE(ssl->buffers.peerRsaKey.buffer, - ssl->heap, DYNAMIC_TYPE_RSA); - ssl->buffers.peerRsaKey.buffer = NULL; - } - #endif - - - ssl->buffers.peerRsaKey.buffer = - (byte*)XMALLOC(args->dCert->pubKeySize, - ssl->heap, DYNAMIC_TYPE_RSA); - if (ssl->buffers.peerRsaKey.buffer == NULL) { - ret = MEMORY_ERROR; - } - else { - XMEMCPY(ssl->buffers.peerRsaKey.buffer, - args->dCert->publicKey, - args->dCert->pubKeySize); - ssl->buffers.peerRsaKey.length = - args->dCert->pubKeySize; - } - #endif /* NO_RSA */ - #endif /* HAVE_PK_CALLBACKS */ - } - - /* check size of peer RSA key */ - if (ret == 0 && ssl->peerRsaKeyPresent && - !ssl->options.verifyNone && - wc_RsaEncryptSize(ssl->peerRsaKey) - < ssl->options.minRsaKeySz) { - ret = RSA_KEY_SIZE_E; - WOLFSSL_MSG("Peer RSA key is too small"); - } - break; - } - #endif /* NO_RSA */ - #ifdef HAVE_NTRU - case NTRUk: - { - if (args->dCert->pubKeySize > sizeof(ssl->peerNtruKey)) { - ret = PEER_KEY_ERROR; - } - else { - XMEMCPY(ssl->peerNtruKey, args->dCert->publicKey, - args->dCert->pubKeySize); - ssl->peerNtruKeyLen = - (word16)args->dCert->pubKeySize; - ssl->peerNtruKeyPresent = 1; - } - break; - } - #endif /* HAVE_NTRU */ - #ifdef HAVE_ECC - case ECDSAk: - { - int keyRet = 0; - word32 idx = 0; - - if (ssl->peerEccDsaKey == NULL) { - /* alloc/init on demand */ - keyRet = AllocKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccDsaKey); - } else if (ssl->peerEccDsaKeyPresent) { - keyRet = ReuseKey(ssl, DYNAMIC_TYPE_ECC, - ssl->peerEccDsaKey); - ssl->peerEccDsaKeyPresent = 0; - } - - if (keyRet != 0 || - wc_EccPublicKeyDecode(args->dCert->publicKey, &idx, - ssl->peerEccDsaKey, - args->dCert->pubKeySize) != 0) { - ret = PEER_KEY_ERROR; - } - else { - ssl->peerEccDsaKeyPresent = 1; - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.peerEccDsaKey.buffer = - (byte*)XMALLOC(args->dCert->pubKeySize, - ssl->heap, DYNAMIC_TYPE_ECC); - if (ssl->buffers.peerEccDsaKey.buffer == NULL) { - ERROR_OUT(MEMORY_ERROR, exit_ppc); - } - else { - XMEMCPY(ssl->buffers.peerEccDsaKey.buffer, - args->dCert->publicKey, - args->dCert->pubKeySize); - ssl->buffers.peerEccDsaKey.length = - args->dCert->pubKeySize; - } - #endif /* HAVE_PK_CALLBACKS */ - } - - /* check size of peer ECC key */ - if (ret == 0 && ssl->peerEccDsaKeyPresent && - !ssl->options.verifyNone && - wc_ecc_size(ssl->peerEccDsaKey) - < ssl->options.minEccKeySz) { - ret = ECC_KEY_SIZE_E; - WOLFSSL_MSG("Peer ECC key is too small"); - } - break; - } - #endif /* HAVE_ECC */ - #ifdef HAVE_ED25519 - case ED25519k: - { - int keyRet = 0; - if (ssl->peerEd25519Key == NULL) { - /* alloc/init on demand */ - keyRet = AllocKey(ssl, DYNAMIC_TYPE_ED25519, - (void**)&ssl->peerEd25519Key); - } else if (ssl->peerEd25519KeyPresent) { - keyRet = ReuseKey(ssl, DYNAMIC_TYPE_ED25519, - ssl->peerEd25519Key); - ssl->peerEd25519KeyPresent = 0; - } - - if (keyRet != 0 || - wc_ed25519_import_public(args->dCert->publicKey, - args->dCert->pubKeySize, - ssl->peerEd25519Key) - != 0) { - ret = PEER_KEY_ERROR; - } - else { - ssl->peerEd25519KeyPresent = 1; - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.peerEd25519Key.buffer = - (byte*)XMALLOC(args->dCert->pubKeySize, - ssl->heap, DYNAMIC_TYPE_ED25519); - if (ssl->buffers.peerEd25519Key.buffer == NULL) { - ERROR_OUT(MEMORY_ERROR, exit_ppc); - } - else { - XMEMCPY(ssl->buffers.peerEd25519Key.buffer, - args->dCert->publicKey, - args->dCert->pubKeySize); - ssl->buffers.peerEd25519Key.length = - args->dCert->pubKeySize; - } - #endif /*HAVE_PK_CALLBACKS */ - } - - /* check size of peer ECC key */ - if (ret == 0 && ssl->peerEd25519KeyPresent && - !ssl->options.verifyNone && - ED25519_KEY_SIZE < ssl->options.minEccKeySz) { - ret = ECC_KEY_SIZE_E; - WOLFSSL_MSG("Peer ECC key is too small"); - } - break; - } - #endif /* HAVE_ED25519 */ - #ifdef HAVE_ED448 - case ED448k: - { - int keyRet = 0; - if (ssl->peerEd448Key == NULL) { - /* alloc/init on demand */ - keyRet = AllocKey(ssl, DYNAMIC_TYPE_ED448, - (void**)&ssl->peerEd448Key); - } else if (ssl->peerEd448KeyPresent) { - keyRet = ReuseKey(ssl, DYNAMIC_TYPE_ED448, - ssl->peerEd448Key); - ssl->peerEd448KeyPresent = 0; - } - - if (keyRet != 0 || - wc_ed448_import_public(args->dCert->publicKey, - args->dCert->pubKeySize, - ssl->peerEd448Key) != 0) { - ret = PEER_KEY_ERROR; - } - else { - ssl->peerEd448KeyPresent = 1; - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.peerEd448Key.buffer = - (byte*)XMALLOC(args->dCert->pubKeySize, - ssl->heap, DYNAMIC_TYPE_ED448); - if (ssl->buffers.peerEd448Key.buffer == NULL) { - ERROR_OUT(MEMORY_ERROR, exit_ppc); - } - else { - XMEMCPY(ssl->buffers.peerEd448Key.buffer, - args->dCert->publicKey, - args->dCert->pubKeySize); - ssl->buffers.peerEd448Key.length = - args->dCert->pubKeySize; - } - #endif /*HAVE_PK_CALLBACKS */ - } - - /* check size of peer ECC key */ - if (ret == 0 && ssl->peerEd448KeyPresent && - !ssl->options.verifyNone && - ED448_KEY_SIZE < ssl->options.minEccKeySz) { - ret = ECC_KEY_SIZE_E; - WOLFSSL_MSG("Peer ECC key is too small"); - } - break; - } - #endif /* HAVE_ED448 */ - default: - break; - } - - /* args->dCert free'd in function cleanup after callback */ - } /* if (count > 0) */ - - /* Check for error */ - if (args->fatal && ret != 0) { - goto exit_ppc; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_FINALIZE; - } /* case TLS_ASYNC_VERIFY */ - FALL_THROUGH; - - case TLS_ASYNC_FINALIZE: - { - /* load last error */ - if (args->lastErr != 0 && ret == 0) { - ret = args->lastErr; - } - - #if defined(OPENSSL_EXTRA) || defined(OPENSSL_EXTRA_X509_SMALL) - if (args->untrustedDepth > ssl->options.verifyDepth) { - ssl->peerVerifyRet = X509_V_ERR_CERT_CHAIN_TOO_LONG; - ret = MAX_CHAIN_ERROR; - } - #endif - - /* Do verify callback */ - ret = DoVerifyCallback(ssl->ctx->cm, ssl, ret, args); - - if (ssl->options.verifyNone && - (ret == CRL_MISSING || ret == CRL_CERT_REVOKED)) { - WOLFSSL_MSG("Ignoring CRL problem based on verify setting"); - ret = ssl->error = 0; - } - - if (ret != 0) { - if (!ssl->options.verifyNone) { - DoCertFatalAlert(ssl, ret); - } - ssl->error = ret; /* Report SSL error */ - } - - if (ret == 0 && ssl->options.side == WOLFSSL_CLIENT_END) { - ssl->options.serverState = SERVER_CERT_COMPLETE; - } - - if (IsEncryptionOn(ssl, 0)) { - args->idx += ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - args->idx += MacSize(ssl); - #endif - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_END; - } /* case TLS_ASYNC_FINALIZE */ - FALL_THROUGH; - - case TLS_ASYNC_END: - { - /* Set final index */ - *inOutIdx = args->idx; - - break; - } - default: - ret = INPUT_CASE_ERROR; - break; - } /* switch(ssl->options.asyncState) */ - -exit_ppc: - - WOLFSSL_LEAVE("ProcessPeerCerts", ret); - - -#if defined(WOLFSSL_ASYNC_CRYPT) || defined(WOLFSSL_NONBLOCK_OCSP) - if (ret == WC_PENDING_E || ret == OCSP_WANT_READ) { - /* Mark message as not received so it can process again */ - ssl->msgsReceived.got_certificate = 0; - - return ret; - } -#endif /* WOLFSSL_ASYNC_CRYPT || WOLFSSL_NONBLOCK_OCSP */ - - FreeProcPeerCertArgs(ssl, args); - -#if defined(WOLFSSL_ASYNC_CRYPT) -#elif defined(WOLFSSL_NONBLOCK_OCSP) - XFREE(args, ssl->heap, DYNAMIC_TYPE_TMP_BUFFER); - ssl->nonblockarg = NULL; -#elif defined(WOLFSSL_SMALL_STACK) - XFREE(args, ssl->heap, DYNAMIC_TYPE_TMP_BUFFER); -#endif - - FreeKeyExchange(ssl); - - return ret; -} -#endif - -#ifndef WOLFSSL_NO_TLS12 -#if !defined(NO_WOLFSSL_CLIENT) || !defined(WOLFSSL_NO_CLIENT_AUTH) - -/* handle processing of certificate (11) */ -static int DoCertificate(WOLFSSL* ssl, byte* input, word32* inOutIdx, - word32 size) -{ - int ret; - - WOLFSSL_START(WC_FUNC_CERTIFICATE_DO); - WOLFSSL_ENTER("DoCertificate"); - -#ifdef SESSION_CERTS - /* Reset the session cert chain count in case the session resume failed. */ - ssl->session.chain.count = 0; - #ifdef WOLFSSL_ALT_CERT_CHAINS - ssl->session.altChain.count = 0; - #endif -#endif /* SESSION_CERTS */ - - ret = ProcessPeerCerts(ssl, input, inOutIdx, size); -#ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_ERROR || ret == ASN_PARSE_E) - SendAlert(ssl, alert_fatal, decode_error); -#endif - -#ifdef OPENSSL_EXTRA - ssl->options.serverState = SERVER_CERT_COMPLETE; -#endif - - WOLFSSL_LEAVE("DoCertificate", ret); - WOLFSSL_END(WC_FUNC_CERTIFICATE_DO); - - return ret; -} - -/* handle processing of certificate_status (22) */ -static int DoCertificateStatus(WOLFSSL* ssl, byte* input, word32* inOutIdx, - word32 size) -{ - int ret = 0; - byte status_type; - word32 status_length; - - WOLFSSL_START(WC_FUNC_CERTIFICATE_STATUS_DO); - WOLFSSL_ENTER("DoCertificateStatus"); - - if (size < ENUM_LEN + OPAQUE24_LEN) - return BUFFER_ERROR; - - status_type = input[(*inOutIdx)++]; - - c24to32(input + *inOutIdx, &status_length); - *inOutIdx += OPAQUE24_LEN; - - if (size != ENUM_LEN + OPAQUE24_LEN + status_length) - return BUFFER_ERROR; - - switch (status_type) { - - #if defined(HAVE_CERTIFICATE_STATUS_REQUEST) \ - || defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2) - - /* WOLFSSL_CSR_OCSP overlaps with WOLFSSL_CSR2_OCSP */ - case WOLFSSL_CSR2_OCSP: - ret = ProcessCSR(ssl, input, inOutIdx, status_length); - break; - - #endif - - #if defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2) - - case WOLFSSL_CSR2_OCSP_MULTI: { - OcspRequest* request; - word32 list_length = status_length; - byte idx = 0; - - #ifdef WOLFSSL_SMALL_STACK - CertStatus* status; - OcspResponse* response; - #else - CertStatus status[1]; - OcspResponse response[1]; - #endif - - do { - if (ssl->status_request_v2) { - ssl->status_request_v2 = 0; - break; - } - - return BUFFER_ERROR; - } while(0); - - #ifdef WOLFSSL_SMALL_STACK - status = (CertStatus*)XMALLOC(sizeof(CertStatus), ssl->heap, - DYNAMIC_TYPE_OCSP_STATUS); - response = (OcspResponse*)XMALLOC(sizeof(OcspResponse), ssl->heap, - DYNAMIC_TYPE_OCSP_REQUEST); - - if (status == NULL || response == NULL) { - if (status) - XFREE(status, ssl->heap, DYNAMIC_TYPE_OCSP_STATUS); - if (response) - XFREE(response, ssl->heap, DYNAMIC_TYPE_OCSP_REQUEST); - - return MEMORY_ERROR; - } - #endif - - while (list_length && ret == 0) { - if (OPAQUE24_LEN > list_length) { - ret = BUFFER_ERROR; - break; - } - - c24to32(input + *inOutIdx, &status_length); - *inOutIdx += OPAQUE24_LEN; - list_length -= OPAQUE24_LEN; - - if (status_length > list_length) { - ret = BUFFER_ERROR; - break; - } - - if (status_length) { - InitOcspResponse(response, status, input +*inOutIdx, - status_length); - - if ((OcspResponseDecode(response, ssl->ctx->cm, ssl->heap, - 0) != 0) - || (response->responseStatus != OCSP_SUCCESSFUL) - || (response->status->status != CERT_GOOD)) - ret = BAD_CERTIFICATE_STATUS_ERROR; - - while (ret == 0) { - request = (OcspRequest*)TLSX_CSR2_GetRequest( - ssl->extensions, status_type, idx++); - - if (request == NULL) - ret = BAD_CERTIFICATE_STATUS_ERROR; - else if (CompareOcspReqResp(request, response) == 0) - break; - else if (idx == 1) /* server cert must be OK */ - ret = BAD_CERTIFICATE_STATUS_ERROR; - } - - *inOutIdx += status_length; - list_length -= status_length; - } - } - - #if defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2) - ssl->status_request_v2 = 0; - #endif - - #ifdef WOLFSSL_SMALL_STACK - XFREE(status, NULL, DYNAMIC_TYPE_OCSP_STATUS); - XFREE(response, NULL, DYNAMIC_TYPE_OCSP_REQUEST); - #endif - - } - break; - - #endif - - default: - ret = BUFFER_ERROR; - } - - if (ret != 0) - SendAlert(ssl, alert_fatal, bad_certificate_status_response); - - if (IsEncryptionOn(ssl, 0)) { - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) { - word32 digestSz = MacSize(ssl); - if (*inOutIdx + ssl->keys.padSz + digestSz > size) - return BUFFER_E; - *inOutIdx += ssl->keys.padSz + digestSz; - } - else - #endif - { - if (*inOutIdx + ssl->keys.padSz > size) - return BUFFER_E; - *inOutIdx += ssl->keys.padSz; - } - } - - WOLFSSL_LEAVE("DoCertificateStatus", ret); - WOLFSSL_END(WC_FUNC_CERTIFICATE_STATUS_DO); - - return ret; -} - -#endif - -#endif /* !WOLFSSL_NO_TLS12 */ - -#endif /* !NO_CERTS */ - -#ifndef WOLFSSL_NO_TLS12 - -static int DoHelloRequest(WOLFSSL* ssl, const byte* input, word32* inOutIdx, - word32 size, word32 totalSz) -{ - (void)input; - - WOLFSSL_START(WC_FUNC_HELLO_REQUEST_DO); - WOLFSSL_ENTER("DoHelloRequest"); - - if (size) /* must be 0 */ - return BUFFER_ERROR; - - if (IsEncryptionOn(ssl, 0)) { - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) { - word32 digestSz = MacSize(ssl); - if (*inOutIdx + ssl->keys.padSz + digestSz > totalSz) - return BUFFER_E; - *inOutIdx += ssl->keys.padSz + digestSz; - } - else - #endif - { - /* access beyond input + size should be checked against totalSz */ - if (*inOutIdx + ssl->keys.padSz > totalSz) - return BUFFER_E; - - *inOutIdx += ssl->keys.padSz; - } - } - - if (ssl->options.side == WOLFSSL_SERVER_END) { - SendAlert(ssl, alert_fatal, unexpected_message); /* try */ - return FATAL_ERROR; - } -#ifdef HAVE_SECURE_RENEGOTIATION - else if (ssl->secure_renegotiation && ssl->secure_renegotiation->enabled) { - ssl->secure_renegotiation->startScr = 1; - WOLFSSL_LEAVE("DoHelloRequest", 0); - WOLFSSL_END(WC_FUNC_HELLO_REQUEST_DO); - return 0; - } -#endif - else { - return SendAlert(ssl, alert_warning, no_renegotiation); - } -} - - -int DoFinished(WOLFSSL* ssl, const byte* input, word32* inOutIdx, word32 size, - word32 totalSz, int sniff) -{ - word32 finishedSz = (ssl->options.tls ? TLS_FINISHED_SZ : FINISHED_SZ); - - WOLFSSL_START(WC_FUNC_FINISHED_DO); - WOLFSSL_ENTER("DoFinished"); - - if (finishedSz != size) - return BUFFER_ERROR; - - /* check against totalSz */ - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) { - if (*inOutIdx + size + ssl->keys.padSz + MacSize(ssl) > totalSz) - return BUFFER_E; - } - else - #endif - { - if (*inOutIdx + size + ssl->keys.padSz > totalSz) - return BUFFER_E; - } - - #ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) AddPacketName(ssl, "Finished"); - if (ssl->toInfoOn) AddLateName("Finished", &ssl->timeoutInfo); - #endif - - if (sniff == NO_SNIFF) { - if (XMEMCMP(input + *inOutIdx, &ssl->hsHashes->verifyHashes,size) != 0){ - WOLFSSL_MSG("Verify finished error on hashes"); - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, decrypt_error); - #endif - return VERIFY_FINISHED_ERROR; - } - } - -#ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->secure_renegotiation) { - /* save peer's state */ - if (ssl->options.side == WOLFSSL_CLIENT_END) - XMEMCPY(ssl->secure_renegotiation->server_verify_data, - input + *inOutIdx, TLS_FINISHED_SZ); - else - XMEMCPY(ssl->secure_renegotiation->client_verify_data, - input + *inOutIdx, TLS_FINISHED_SZ); - ssl->secure_renegotiation->verifySet = 1; - } -#endif - - /* force input exhaustion at ProcessReply consuming padSz */ - *inOutIdx += size + ssl->keys.padSz; -#if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - *inOutIdx += MacSize(ssl); -#endif - - if (ssl->options.side == WOLFSSL_CLIENT_END) { - ssl->options.serverState = SERVER_FINISHED_COMPLETE; -#ifdef OPENSSL_EXTRA - ssl->cbmode = SSL_CB_MODE_WRITE; - ssl->options.clientState = CLIENT_FINISHED_COMPLETE; -#endif - if (!ssl->options.resuming) { -#ifdef OPENSSL_EXTRA - if (ssl->CBIS != NULL) { - ssl->CBIS(ssl, SSL_CB_CONNECT_LOOP, SSL_SUCCESS); - } -#endif - ssl->options.handShakeState = HANDSHAKE_DONE; - ssl->options.handShakeDone = 1; - } - } - else { - ssl->options.clientState = CLIENT_FINISHED_COMPLETE; -#ifdef OPENSSL_EXTRA - ssl->cbmode = SSL_CB_MODE_READ; - ssl->options.serverState = SERVER_FINISHED_COMPLETE; -#endif - if (ssl->options.resuming) { -#ifdef OPENSSL_EXTRA - if (ssl->CBIS != NULL) { - ssl->CBIS(ssl, SSL_CB_ACCEPT_LOOP, SSL_SUCCESS); - } -#endif - ssl->options.handShakeState = HANDSHAKE_DONE; - ssl->options.handShakeDone = 1; - } - } -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - DtlsMsgPoolReset(ssl); - } -#endif - - WOLFSSL_LEAVE("DoFinished", 0); - WOLFSSL_END(WC_FUNC_FINISHED_DO); - - return 0; -} - - -/* Make sure no duplicates, no fast forward, or other problems; 0 on success */ -static int SanityCheckMsgReceived(WOLFSSL* ssl, byte type) -{ - /* verify not a duplicate, mark received, check state */ - switch (type) { - -#ifndef NO_WOLFSSL_CLIENT - case hello_request: - if (ssl->msgsReceived.got_hello_request) { - WOLFSSL_MSG("Duplicate HelloRequest received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_hello_request = 1; - - break; -#endif - -#ifndef NO_WOLFSSL_SERVER - case client_hello: - if (ssl->msgsReceived.got_client_hello) { - WOLFSSL_MSG("Duplicate ClientHello received"); - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, unexpected_message); - #endif - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_client_hello = 1; - - break; -#endif - -#ifndef NO_WOLFSSL_CLIENT - case server_hello: - if (ssl->msgsReceived.got_server_hello) { - WOLFSSL_MSG("Duplicate ServerHello received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_server_hello = 1; - - break; -#endif - -#ifndef NO_WOLFSSL_CLIENT - case hello_verify_request: - if (ssl->msgsReceived.got_hello_verify_request) { - WOLFSSL_MSG("Duplicate HelloVerifyRequest received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_hello_verify_request = 1; - - break; -#endif - -#ifndef NO_WOLFSSL_CLIENT - case session_ticket: - if (ssl->msgsReceived.got_session_ticket) { - WOLFSSL_MSG("Duplicate SessionTicket received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_session_ticket = 1; - - break; -#endif - - case certificate: - if (ssl->msgsReceived.got_certificate) { - WOLFSSL_MSG("Duplicate Certificate received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_certificate = 1; - -#ifndef NO_WOLFSSL_CLIENT - if (ssl->options.side == WOLFSSL_CLIENT_END) { - if ( ssl->msgsReceived.got_server_hello == 0) { - WOLFSSL_MSG("No ServerHello before Cert"); - return OUT_OF_ORDER_E; - } - } -#endif -#ifndef NO_WOLFSSL_SERVER - if (ssl->options.side == WOLFSSL_SERVER_END) { - if ( ssl->msgsReceived.got_client_hello == 0) { - WOLFSSL_MSG("No ClientHello before Cert"); - return OUT_OF_ORDER_E; - } - } -#endif - break; - -#ifndef NO_WOLFSSL_CLIENT - case certificate_status: - if (ssl->msgsReceived.got_certificate_status) { - WOLFSSL_MSG("Duplicate CertificateSatatus received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_certificate_status = 1; - - if (ssl->msgsReceived.got_certificate == 0) { - WOLFSSL_MSG("No Certificate before CertificateStatus"); - return OUT_OF_ORDER_E; - } - if (ssl->msgsReceived.got_server_key_exchange != 0) { - WOLFSSL_MSG("CertificateStatus after ServerKeyExchange"); - return OUT_OF_ORDER_E; - } - - break; -#endif - -#ifndef NO_WOLFSSL_CLIENT - case server_key_exchange: - if (ssl->msgsReceived.got_server_key_exchange) { - WOLFSSL_MSG("Duplicate ServerKeyExchange received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_server_key_exchange = 1; - - if (ssl->msgsReceived.got_server_hello == 0) { - WOLFSSL_MSG("No ServerHello before ServerKeyExchange"); - return OUT_OF_ORDER_E; - } - if (ssl->msgsReceived.got_certificate_status == 0) { -#ifdef HAVE_CERTIFICATE_STATUS_REQUEST - if (ssl->status_request) { - int ret; - - WOLFSSL_MSG("No CertificateStatus before ServerKeyExchange"); - if ((ret = TLSX_CSR_ForceRequest(ssl)) != 0) - return ret; - } -#endif -#ifdef HAVE_CERTIFICATE_STATUS_REQUEST_V2 - if (ssl->status_request_v2) { - int ret; - - WOLFSSL_MSG("No CertificateStatus before ServerKeyExchange"); - if ((ret = TLSX_CSR2_ForceRequest(ssl)) != 0) - return ret; - } -#endif - } - - break; -#endif - -#ifndef NO_WOLFSSL_CLIENT - case certificate_request: - if (ssl->msgsReceived.got_certificate_request) { - WOLFSSL_MSG("Duplicate CertificateRequest received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_certificate_request = 1; - - break; -#endif - -#ifndef NO_WOLFSSL_CLIENT - case server_hello_done: - if (ssl->msgsReceived.got_server_hello_done) { - WOLFSSL_MSG("Duplicate ServerHelloDone received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_server_hello_done = 1; - - if (ssl->msgsReceived.got_certificate == 0) { - if (ssl->specs.kea == psk_kea || - ssl->specs.kea == dhe_psk_kea || - ssl->specs.kea == ecdhe_psk_kea || - ssl->options.usingAnon_cipher) { - WOLFSSL_MSG("No Cert required"); - } else { - WOLFSSL_MSG("No Certificate before ServerHelloDone"); - return OUT_OF_ORDER_E; - } - } - if (ssl->msgsReceived.got_server_key_exchange == 0) { - int pskNoServerHint = 0; /* not required in this case */ - - #ifndef NO_PSK - if (ssl->specs.kea == psk_kea && - ssl->arrays != NULL && - ssl->arrays->server_hint[0] == 0) - pskNoServerHint = 1; - #endif - if (ssl->specs.static_ecdh == 1 || - ssl->specs.kea == rsa_kea || - ssl->specs.kea == ntru_kea || - pskNoServerHint) { - WOLFSSL_MSG("No KeyExchange required"); - } else { - WOLFSSL_MSG("No ServerKeyExchange before ServerDone"); - return OUT_OF_ORDER_E; - } - } - break; -#endif - -#ifndef NO_WOLFSSL_SERVER - case certificate_verify: - if (ssl->msgsReceived.got_certificate_verify) { - WOLFSSL_MSG("Duplicate CertificateVerify received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_certificate_verify = 1; - - if ( ssl->msgsReceived.got_certificate == 0) { - WOLFSSL_MSG("No Cert before CertVerify"); - return OUT_OF_ORDER_E; - } - break; -#endif - -#ifndef NO_WOLFSSL_SERVER - case client_key_exchange: - if (ssl->msgsReceived.got_client_key_exchange) { - WOLFSSL_MSG("Duplicate ClientKeyExchange received"); - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, unexpected_message); - #endif - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_client_key_exchange = 1; - - if (ssl->msgsReceived.got_client_hello == 0) { - WOLFSSL_MSG("No ClientHello before ClientKeyExchange"); - return OUT_OF_ORDER_E; - } - break; -#endif - - case finished: - if (ssl->msgsReceived.got_finished) { - WOLFSSL_MSG("Duplicate Finished received"); - return DUPLICATE_MSG_E; - } - ssl->msgsReceived.got_finished = 1; - - if (ssl->msgsReceived.got_change_cipher == 0) { - WOLFSSL_MSG("Finished received before ChangeCipher"); - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, unexpected_message); - #endif - return NO_CHANGE_CIPHER_E; - } - break; - - case change_cipher_hs: - if (ssl->msgsReceived.got_change_cipher) { - WOLFSSL_MSG("Duplicate ChangeCipher received"); - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, unexpected_message); - #endif - return DUPLICATE_MSG_E; - } - /* DTLS is going to ignore the CCS message if the client key - * exchange message wasn't received yet. */ - if (!ssl->options.dtls) - ssl->msgsReceived.got_change_cipher = 1; - -#ifndef NO_WOLFSSL_CLIENT - if (ssl->options.side == WOLFSSL_CLIENT_END) { - if (!ssl->options.resuming) { - if (ssl->msgsReceived.got_server_hello_done == 0) { - WOLFSSL_MSG("No ServerHelloDone before ChangeCipher"); - return OUT_OF_ORDER_E; - } - } - else { - if (ssl->msgsReceived.got_server_hello == 0) { - WOLFSSL_MSG("No ServerHello before ChangeCipher on Resume"); - return OUT_OF_ORDER_E; - } - } - #ifdef HAVE_SESSION_TICKET - if (ssl->expect_session_ticket) { - WOLFSSL_MSG("Expected session ticket missing"); - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - return OUT_OF_ORDER_E; - #endif - return SESSION_TICKET_EXPECT_E; - } - #endif - } -#endif -#ifndef NO_WOLFSSL_SERVER - if (ssl->options.side == WOLFSSL_SERVER_END) { - if (!ssl->options.resuming && - ssl->msgsReceived.got_client_key_exchange == 0) { - WOLFSSL_MSG("No ClientKeyExchange before ChangeCipher"); - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, unexpected_message); - #endif - return OUT_OF_ORDER_E; - } - #ifndef NO_CERTS - if (ssl->options.verifyPeer && - ssl->options.havePeerCert) { - - if (!ssl->options.havePeerVerify) { - WOLFSSL_MSG("client didn't send cert verify"); - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - return OUT_OF_ORDER_E; - #endif - return NO_PEER_VERIFY; - } - } - #endif - } -#endif - if (ssl->options.dtls) - ssl->msgsReceived.got_change_cipher = 1; - break; - - default: - WOLFSSL_MSG("Unknown message type"); - return SANITY_MSG_E; - } - - return 0; -} - - -static int DoHandShakeMsgType(WOLFSSL* ssl, byte* input, word32* inOutIdx, - byte type, word32 size, word32 totalSz) -{ - int ret = 0; - word32 expectedIdx; - - WOLFSSL_ENTER("DoHandShakeMsgType"); - -#ifdef WOLFSSL_TLS13 - if (type == hello_retry_request) { - return DoTls13HandShakeMsgType(ssl, input, inOutIdx, type, size, - totalSz); - } -#endif - - /* make sure can read the message */ - if (*inOutIdx + size > totalSz) { - WOLFSSL_MSG("Incomplete Data"); - return INCOMPLETE_DATA; - } - - expectedIdx = *inOutIdx + size + - (ssl->keys.encryptionOn ? ssl->keys.padSz : 0); -#if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead && ssl->keys.encryptionOn) - expectedIdx += MacSize(ssl); -#endif - -#if !defined(WOLFSSL_NO_SERVER) && \ - defined(HAVE_SECURE_RENEGOTIATION) && \ - defined(HAVE_SERVER_RENEGOTIATION_INFO) - if (ssl->options.handShakeDone && type == client_hello && - ssl->secure_renegotiation && - ssl->secure_renegotiation->enabled) - { - WOLFSSL_MSG("Reset handshake state"); - XMEMSET(&ssl->msgsReceived, 0, sizeof(MsgsReceived)); - ssl->options.serverState = NULL_STATE; - ssl->options.clientState = NULL_STATE; - ssl->options.connectState = CONNECT_BEGIN; - ssl->options.acceptState = ACCEPT_FIRST_REPLY_DONE; - ssl->options.handShakeState = NULL_STATE; - ssl->secure_renegotiation->cache_status = SCR_CACHE_NEEDED; - - ret = InitHandshakeHashes(ssl); - if (ret != 0) - return ret; - } -#endif - - /* sanity check msg received */ - if ( (ret = SanityCheckMsgReceived(ssl, type)) != 0) { - WOLFSSL_MSG("Sanity Check on handshake message type received failed"); - return ret; - } - -#if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - /* add name later, add on record and handshake header part back on */ - if (ssl->toInfoOn) { - int add = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - AddPacketInfo(ssl, 0, handshake, input + *inOutIdx - add, - size + add, READ_PROTO, ssl->heap); - #ifdef WOLFSSL_CALLBACKS - AddLateRecordHeader(&ssl->curRL, &ssl->timeoutInfo); - #endif - } -#endif - - if (ssl->options.handShakeState == HANDSHAKE_DONE && type != hello_request){ - WOLFSSL_MSG("HandShake message after handshake complete"); - SendAlert(ssl, alert_fatal, unexpected_message); - return OUT_OF_ORDER_E; - } - - if (ssl->options.side == WOLFSSL_CLIENT_END && ssl->options.dtls == 0 && - ssl->options.serverState == NULL_STATE && type != server_hello) { - WOLFSSL_MSG("First server message not server hello"); - SendAlert(ssl, alert_fatal, unexpected_message); - return OUT_OF_ORDER_E; - } - - if (ssl->options.side == WOLFSSL_CLIENT_END && ssl->options.dtls && - type == server_hello_done && - ssl->options.serverState < SERVER_HELLO_COMPLETE) { - WOLFSSL_MSG("Server hello done received before server hello in DTLS"); - SendAlert(ssl, alert_fatal, unexpected_message); - return OUT_OF_ORDER_E; - } - - if (ssl->options.side == WOLFSSL_SERVER_END && - ssl->options.clientState == NULL_STATE && type != client_hello) { - WOLFSSL_MSG("First client message not client hello"); - SendAlert(ssl, alert_fatal, unexpected_message); - return OUT_OF_ORDER_E; - } - - /* above checks handshake state */ - /* hello_request not hashed */ - /* Also, skip hashing the client_hello message here for DTLS. It will be - * hashed later if the DTLS cookie is correct. */ - if (type != hello_request && - !(IsDtlsNotSctpMode(ssl) && type == client_hello) - #ifdef WOLFSSL_ASYNC_CRYPT - && ssl->error != WC_PENDING_E - #endif - #ifdef WOLFSSL_NONBLOCK_OCSP - && ssl->error != OCSP_WANT_READ - #endif - ) { - ret = HashInput(ssl, input + *inOutIdx, size); - if (ret != 0) { - WOLFSSL_MSG("Incomplete handshake hashes"); - return ret; - } - } - -#ifdef OPENSSL_EXTRA - if (ssl->CBIS != NULL){ - ssl->cbmode = SSL_CB_MODE_READ; - ssl->cbtype = type; - ssl->CBIS(ssl, SSL_CB_ACCEPT_LOOP, SSL_SUCCESS); - } -#endif - - switch (type) { - - case hello_request: - WOLFSSL_MSG("processing hello request"); - ret = DoHelloRequest(ssl, input, inOutIdx, size, totalSz); - break; - -#ifndef NO_WOLFSSL_CLIENT - case hello_verify_request: - WOLFSSL_MSG("processing hello verify request"); - ret = DoHelloVerifyRequest(ssl, input,inOutIdx, size); - break; - - case server_hello: - WOLFSSL_MSG("processing server hello"); - ret = DoServerHello(ssl, input, inOutIdx, size); - #if !defined(WOLFSSL_NO_CLIENT_AUTH) && \ - ((defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH)) || \ - (defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH))) - if (ssl->options.resuming || !IsAtLeastTLSv1_2(ssl) || - IsAtLeastTLSv1_3(ssl->version)) { - - #if defined(WOLFSSL_ASYNC_CRYPT) || defined(WOLFSSL_NONBLOCK_OCSP) - if (ret != WC_PENDING_E && ret != OCSP_WANT_READ) - #endif - { - ssl->options.cacheMessages = 0; - if (ssl->hsHashes->messages != NULL) { - XFREE(ssl->hsHashes->messages, ssl->heap, - DYNAMIC_TYPE_HASHES); - ssl->hsHashes->messages = NULL; - } - } - } - #endif - break; - -#ifndef NO_CERTS - case certificate_request: - WOLFSSL_MSG("processing certificate request"); - ret = DoCertificateRequest(ssl, input, inOutIdx, size); - break; -#endif - - case server_key_exchange: - WOLFSSL_MSG("processing server key exchange"); - ret = DoServerKeyExchange(ssl, input, inOutIdx, size); - break; - -#ifdef HAVE_SESSION_TICKET - case session_ticket: - WOLFSSL_MSG("processing session ticket"); - ret = DoSessionTicket(ssl, input, inOutIdx, size); - break; -#endif /* HAVE_SESSION_TICKET */ -#endif - -#if !defined(NO_CERTS) && (!defined(NO_WOLFSSL_CLIENT) || \ - !defined(WOLFSSL_NO_CLIENT_AUTH)) - case certificate: - WOLFSSL_MSG("processing certificate"); - ret = DoCertificate(ssl, input, inOutIdx, size); - break; - - case certificate_status: - WOLFSSL_MSG("processing certificate status"); - ret = DoCertificateStatus(ssl, input, inOutIdx, size); - break; -#endif - - case server_hello_done: - WOLFSSL_MSG("processing server hello done"); - #ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) - AddPacketName(ssl, "ServerHelloDone"); - if (ssl->toInfoOn) - AddLateName("ServerHelloDone", &ssl->timeoutInfo); - #endif - ssl->options.serverState = SERVER_HELLODONE_COMPLETE; - if (IsEncryptionOn(ssl, 0)) { - *inOutIdx += ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - *inOutIdx += MacSize(ssl); - #endif - } - if (ssl->options.resuming) { - WOLFSSL_MSG("Not resuming as thought"); - ssl->options.resuming = 0; - } - break; - - case finished: - WOLFSSL_MSG("processing finished"); - ret = DoFinished(ssl, input, inOutIdx, size, totalSz, NO_SNIFF); - break; - -#ifndef NO_WOLFSSL_SERVER - case client_hello: - WOLFSSL_MSG("processing client hello"); - ret = DoClientHello(ssl, input, inOutIdx, size); - #if !defined(WOLFSSL_NO_CLIENT_AUTH) && \ - ((defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH)) || \ - (defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH))) - if (ssl->options.resuming || !ssl->options.verifyPeer || \ - !IsAtLeastTLSv1_2(ssl) || IsAtLeastTLSv1_3(ssl->version)) { - #if defined(WOLFSSL_ASYNC_CRYPT) || defined(WOLFSSL_NONBLOCK_OCSP) - if (ret != WC_PENDING_E && ret != OCSP_WANT_READ) - #endif - { - ssl->options.cacheMessages = 0; - if (ssl->hsHashes->messages != NULL) { - XFREE(ssl->hsHashes->messages, ssl->heap, DYNAMIC_TYPE_HASHES); - ssl->hsHashes->messages = NULL; - } - } - } - #endif - if (IsEncryptionOn(ssl, 0)) { - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) { - word32 digestSz = MacSize(ssl); - if (*inOutIdx + ssl->keys.padSz + digestSz > totalSz) - return BUFFER_E; - *inOutIdx += ssl->keys.padSz + digestSz; - } - else - #endif - { - /* access beyond input + size should be checked against totalSz - */ - if (*inOutIdx + ssl->keys.padSz > totalSz) - return BUFFER_E; - - *inOutIdx += ssl->keys.padSz; - } - } - break; - - case client_key_exchange: - WOLFSSL_MSG("processing client key exchange"); - ret = DoClientKeyExchange(ssl, input, inOutIdx, size); - break; - -#if (!defined(NO_RSA) || defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_ED448)) && !defined(WOLFSSL_NO_CLIENT_AUTH) - case certificate_verify: - WOLFSSL_MSG("processing certificate verify"); - ret = DoCertificateVerify(ssl, input, inOutIdx, size); - break; -#endif /* (!NO_RSA || ECC || ED25519 || ED448) && !WOLFSSL_NO_CLIENT_AUTH */ - -#endif /* !NO_WOLFSSL_SERVER */ - - default: - WOLFSSL_MSG("Unknown handshake message type"); - ret = UNKNOWN_HANDSHAKE_TYPE; - break; - } - if (ret == 0 && expectedIdx != *inOutIdx) { - WOLFSSL_MSG("Extra data in handshake message"); - if (!ssl->options.dtls) - SendAlert(ssl, alert_fatal, decode_error); - ret = DECODE_E; - } - - if (ret == 0 && ssl->buffers.inputBuffer.dynamicFlag - #if defined(WOLFSSL_ASYNC_CRYPT) || defined(WOLFSSL_NONBLOCK_OCSP) - /* do not shrink input for async or non-block */ - && ssl->error != WC_PENDING_E && ssl->error != OCSP_WANT_READ - #endif - ) { - ShrinkInputBuffer(ssl, NO_FORCED_FREE); - } - -#if defined(WOLFSSL_ASYNC_CRYPT) || defined(WOLFSSL_NONBLOCK_OCSP) - /* if async, offset index so this msg will be processed again */ - if ((ret == WC_PENDING_E || ret == OCSP_WANT_READ) && *inOutIdx > 0) { - *inOutIdx -= HANDSHAKE_HEADER_SZ; - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - *inOutIdx -= DTLS_HANDSHAKE_EXTRA; - } - #endif - } - - /* make sure async error is cleared */ - if (ret == 0 && (ssl->error == WC_PENDING_E || ssl->error == OCSP_WANT_READ)) { - ssl->error = 0; - } -#endif /* WOLFSSL_ASYNC_CRYPT || WOLFSSL_NONBLOCK_OCSP */ - - WOLFSSL_LEAVE("DoHandShakeMsgType()", ret); - return ret; -} - - -static int DoHandShakeMsg(WOLFSSL* ssl, byte* input, word32* inOutIdx, - word32 totalSz) -{ - int ret = 0; - word32 inputLength; - - WOLFSSL_ENTER("DoHandShakeMsg()"); - - if (ssl->arrays == NULL) { - byte type; - word32 size; - - if (GetHandShakeHeader(ssl,input,inOutIdx,&type, &size, totalSz) != 0) - return PARSE_ERROR; - - ssl->options.handShakeState = type; - - return DoHandShakeMsgType(ssl, input, inOutIdx, type, size, totalSz); - } - - inputLength = ssl->buffers.inputBuffer.length - *inOutIdx; - - /* If there is a pending fragmented handshake message, - * pending message size will be non-zero. */ - if (ssl->arrays->pendingMsgSz == 0) { - byte type; - word32 size; - - if (GetHandShakeHeader(ssl,input, inOutIdx, &type, &size, totalSz) != 0) - return PARSE_ERROR; - - /* Cap the maximum size of a handshake message to something reasonable. - * By default is the maximum size of a certificate message assuming - * nine 2048-bit RSA certificates in the chain. */ - if (size > MAX_HANDSHAKE_SZ) { - WOLFSSL_MSG("Handshake message too large"); - return HANDSHAKE_SIZE_ERROR; - } - - /* size is the size of the certificate message payload */ - if (inputLength - HANDSHAKE_HEADER_SZ < size) { - ssl->arrays->pendingMsgType = type; - ssl->arrays->pendingMsgSz = size + HANDSHAKE_HEADER_SZ; - ssl->arrays->pendingMsg = (byte*)XMALLOC(size + HANDSHAKE_HEADER_SZ, - ssl->heap, - DYNAMIC_TYPE_ARRAYS); - if (ssl->arrays->pendingMsg == NULL) - return MEMORY_E; - XMEMCPY(ssl->arrays->pendingMsg, - input + *inOutIdx - HANDSHAKE_HEADER_SZ, - inputLength); - ssl->arrays->pendingMsgOffset = inputLength; - *inOutIdx += inputLength - HANDSHAKE_HEADER_SZ; - return 0; - } - - ret = DoHandShakeMsgType(ssl, input, inOutIdx, type, size, totalSz); - } - else { - word32 pendSz = - ssl->arrays->pendingMsgSz - ssl->arrays->pendingMsgOffset; - - /* Catch the case where there may be the remainder of a fragmented - * handshake message and the next handshake message in the same - * record. */ - if (inputLength > pendSz) - inputLength = pendSz; - - XMEMCPY(ssl->arrays->pendingMsg + ssl->arrays->pendingMsgOffset, - input + *inOutIdx, inputLength); - ssl->arrays->pendingMsgOffset += inputLength; - *inOutIdx += inputLength; - - if (ssl->arrays->pendingMsgOffset == ssl->arrays->pendingMsgSz) - { - word32 idx = HANDSHAKE_HEADER_SZ; - ret = DoHandShakeMsgType(ssl, - ssl->arrays->pendingMsg, - &idx, ssl->arrays->pendingMsgType, - ssl->arrays->pendingMsgSz - idx, - ssl->arrays->pendingMsgSz); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - /* setup to process fragment again */ - ssl->arrays->pendingMsgOffset -= inputLength; - *inOutIdx -= inputLength; - } - else - #endif - { - XFREE(ssl->arrays->pendingMsg, ssl->heap, DYNAMIC_TYPE_ARRAYS); - ssl->arrays->pendingMsg = NULL; - ssl->arrays->pendingMsgSz = 0; - } - } - } - - WOLFSSL_LEAVE("DoHandShakeMsg()", ret); - return ret; -} - -#endif /* !WOLFSSL_NO_TLS12 */ - -#ifdef WOLFSSL_DTLS - -static WC_INLINE int DtlsCheckWindow(WOLFSSL* ssl) -{ - word32* window; - word16 cur_hi, next_hi; - word32 cur_lo, next_lo, diff; - int curLT; - WOLFSSL_DTLS_PEERSEQ* peerSeq = NULL; - - if (!ssl->options.haveMcast) - peerSeq = ssl->keys.peerSeq; - else { -#ifdef WOLFSSL_MULTICAST - WOLFSSL_DTLS_PEERSEQ* p; - int i; - - for (i = 0, p = ssl->keys.peerSeq; - i < WOLFSSL_DTLS_PEERSEQ_SZ; - i++, p++) { - - if (p->peerId == ssl->keys.curPeerId) { - peerSeq = p; - break; - } - } -#endif - } - - if (peerSeq == NULL) { - WOLFSSL_MSG("Could not find peer sequence"); - return 0; - } - - if (ssl->keys.curEpoch == peerSeq->nextEpoch) { - next_hi = peerSeq->nextSeq_hi; - next_lo = peerSeq->nextSeq_lo; - window = peerSeq->window; - } - else if (ssl->keys.curEpoch == peerSeq->nextEpoch - 1) { - next_hi = peerSeq->prevSeq_hi; - next_lo = peerSeq->prevSeq_lo; - window = peerSeq->prevWindow; - } - else { - return 0; - } - - cur_hi = ssl->keys.curSeq_hi; - cur_lo = ssl->keys.curSeq_lo; - - /* If the difference between next and cur is > 2^32, way outside window. */ - if ((cur_hi > next_hi + 1) || (next_hi > cur_hi + 1)) { - WOLFSSL_MSG("Current record from way too far in the future."); - return 0; - } - - if (cur_hi == next_hi) { - curLT = cur_lo < next_lo; - diff = curLT ? next_lo - cur_lo : cur_lo - next_lo; - } - else { - curLT = cur_hi < next_hi; - diff = curLT ? cur_lo - next_lo : next_lo - cur_lo; - } - - /* Check to see that the next value is greater than the number of messages - * trackable in the window, and that the difference between the next - * expected sequence number and the received sequence number is inside the - * window. */ - if ((next_hi || next_lo > DTLS_SEQ_BITS) && - curLT && (diff > DTLS_SEQ_BITS)) { - - WOLFSSL_MSG("Current record sequence number from the past."); - return 0; - } -#ifndef WOLFSSL_DTLS_ALLOW_FUTURE - else if (!curLT && (diff > DTLS_SEQ_BITS)) { - WOLFSSL_MSG("Rejecting message too far into the future."); - return 0; - } -#endif - else if (curLT) { - word32 idx = diff / DTLS_WORD_BITS; - word32 newDiff = diff % DTLS_WORD_BITS; - - /* verify idx is valid for window array */ - if (idx >= WOLFSSL_DTLS_WINDOW_WORDS) { - WOLFSSL_MSG("Invalid DTLS windows index"); - return 0; - } - - if (window[idx] & (1 << newDiff)) { - WOLFSSL_MSG("Current record sequence number already received."); - return 0; - } - } - - return 1; -} - - -#ifdef WOLFSSL_MULTICAST -static WC_INLINE word32 UpdateHighwaterMark(word32 cur, word32 first, - word32 second, word32 max) -{ - word32 newCur = 0; - - if (cur < first) - newCur = first; - else if (cur < second) - newCur = second; - else if (cur < max) - newCur = max; - - return newCur; -} -#endif /* WOLFSSL_MULTICAST */ - - -static WC_INLINE int DtlsUpdateWindow(WOLFSSL* ssl) -{ - word32* window; - word32* next_lo; - word16* next_hi; - int curLT; - word32 cur_lo, diff; - word16 cur_hi; - WOLFSSL_DTLS_PEERSEQ* peerSeq = ssl->keys.peerSeq; - - cur_hi = ssl->keys.curSeq_hi; - cur_lo = ssl->keys.curSeq_lo; - -#ifdef WOLFSSL_MULTICAST - if (ssl->options.haveMcast) { - WOLFSSL_DTLS_PEERSEQ* p; - int i; - - peerSeq = NULL; - for (i = 0, p = ssl->keys.peerSeq; - i < WOLFSSL_DTLS_PEERSEQ_SZ; - i++, p++) { - - if (p->peerId == ssl->keys.curPeerId) { - peerSeq = p; - break; - } - } - - if (peerSeq == NULL) { - WOLFSSL_MSG("Couldn't find that peer ID to update window."); - return 0; - } - - if (p->highwaterMark && cur_lo >= p->highwaterMark) { - int cbError = 0; - - if (ssl->ctx->mcastHwCb) - cbError = ssl->ctx->mcastHwCb(p->peerId, - ssl->ctx->mcastMaxSeq, - cur_lo, ssl->mcastHwCbCtx); - if (cbError) { - WOLFSSL_MSG("Multicast highwater callback returned an error."); - return MCAST_HIGHWATER_CB_E; - } - - p->highwaterMark = UpdateHighwaterMark(cur_lo, - ssl->ctx->mcastFirstSeq, - ssl->ctx->mcastSecondSeq, - ssl->ctx->mcastMaxSeq); - } - } -#endif - - if (ssl->keys.curEpoch == peerSeq->nextEpoch) { - next_hi = &peerSeq->nextSeq_hi; - next_lo = &peerSeq->nextSeq_lo; - window = peerSeq->window; - } - else { - next_hi = &peerSeq->prevSeq_hi; - next_lo = &peerSeq->prevSeq_lo; - window = peerSeq->prevWindow; - } - - if (cur_hi == *next_hi) { - curLT = cur_lo < *next_lo; - diff = curLT ? *next_lo - cur_lo : cur_lo - *next_lo; - } - else { - curLT = cur_hi < *next_hi; - diff = curLT ? cur_lo - *next_lo : *next_lo - cur_lo; - } - - if (curLT) { - word32 idx = diff / DTLS_WORD_BITS; - word32 newDiff = diff % DTLS_WORD_BITS; - - if (idx < WOLFSSL_DTLS_WINDOW_WORDS) - window[idx] |= (1 << newDiff); - } - else { - if (diff >= DTLS_SEQ_BITS) - XMEMSET(window, 0, DTLS_SEQ_SZ); - else { - word32 idx, newDiff, temp, i; - word32 oldWindow[WOLFSSL_DTLS_WINDOW_WORDS]; - - temp = 0; - diff++; - idx = diff / DTLS_WORD_BITS; - newDiff = diff % DTLS_WORD_BITS; - - XMEMCPY(oldWindow, window, sizeof(oldWindow)); - - for (i = 0; i < WOLFSSL_DTLS_WINDOW_WORDS; i++) { - if (i < idx) - window[i] = 0; - else { - temp |= (oldWindow[i-idx] << newDiff); - window[i] = temp; - temp = oldWindow[i-idx] >> (DTLS_WORD_BITS - newDiff - 1); - } - } - } - window[0] |= 1; - *next_lo = cur_lo + 1; - if (*next_lo < cur_lo) - (*next_hi)++; - } - - return 1; -} - - -static int DtlsMsgDrain(WOLFSSL* ssl) -{ - DtlsMsg* item = ssl->dtls_rx_msg_list; - int ret = 0; - - WOLFSSL_ENTER("DtlsMsgDrain()"); - - /* While there is an item in the store list, and it is the expected - * message, and it is complete, and there hasn't been an error in the - * last message... */ - while (item != NULL && - ssl->keys.dtls_expected_peer_handshake_number == item->seq && - item->fragSz == item->sz && - ret == 0) { - word32 idx = 0; - ssl->keys.dtls_expected_peer_handshake_number++; - ret = DoHandShakeMsgType(ssl, item->msg, - &idx, item->type, item->sz, item->sz); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ssl->keys.dtls_expected_peer_handshake_number--; - break; - } - #endif - ssl->dtls_rx_msg_list = item->next; - DtlsMsgDelete(item, ssl->heap); - item = ssl->dtls_rx_msg_list; - ssl->dtls_rx_msg_list_sz--; - } - - WOLFSSL_LEAVE("DtlsMsgDrain()", ret); - return ret; -} - - -static int DoDtlsHandShakeMsg(WOLFSSL* ssl, byte* input, word32* inOutIdx, - word32 totalSz) -{ - byte type; - word32 size; - word32 fragOffset, fragSz; - int ret = 0; - - WOLFSSL_ENTER("DoDtlsHandShakeMsg()"); - - /* process any pending DTLS messages - this flow can happen with async */ - if (ssl->dtls_rx_msg_list != NULL) { - ret = DtlsMsgDrain(ssl); - if (ret != 0) - return ret; - - /* if done processing fragment exit with success */ - if (totalSz == *inOutIdx) - return ret; - } - - /* parse header */ - if (GetDtlsHandShakeHeader(ssl, input, inOutIdx, &type, - &size, &fragOffset, &fragSz, totalSz) != 0) { - WOLFSSL_ERROR(PARSE_ERROR); - return PARSE_ERROR; - } - - /* Cap the maximum size of a handshake message to something reasonable. - * By default is the maximum size of a certificate message assuming - * nine 2048-bit RSA certificates in the chain. */ - if (size > MAX_HANDSHAKE_SZ) { - WOLFSSL_MSG("Handshake message too large"); - return HANDSHAKE_SIZE_ERROR; - } - - /* check that we have complete fragment */ - if (*inOutIdx + fragSz > totalSz) { - WOLFSSL_ERROR(INCOMPLETE_DATA); - return INCOMPLETE_DATA; - } - - /* Check the handshake sequence number first. If out of order, - * add the current message to the list. If the message is in order, - * but it is a fragment, add the current message to the list, then - * check the head of the list to see if it is complete, if so, pop - * it out as the current message. If the message is complete and in - * order, process it. Check the head of the list to see if it is in - * order, if so, process it. (Repeat until list exhausted.) If the - * head is out of order, return for more processing. - */ - if (ssl->keys.dtls_peer_handshake_number > - ssl->keys.dtls_expected_peer_handshake_number) { - /* Current message is out of order. It will get stored in the list. - * Storing also takes care of defragmentation. If the messages is a - * client hello, we need to process this out of order; the server - * is not supposed to keep state, but the second client hello will - * have a different handshake sequence number than is expected, and - * the server shouldn't be expecting any particular handshake sequence - * number. (If the cookie changes multiple times in quick succession, - * the client could be sending multiple new client hello messages - * with newer and newer cookies.) */ - if (type != client_hello) { - if (ssl->dtls_rx_msg_list_sz < DTLS_POOL_SZ) { - DtlsMsgStore(ssl, ssl->keys.dtls_peer_handshake_number, - input + *inOutIdx, size, type, - fragOffset, fragSz, ssl->heap); - } - *inOutIdx += fragSz; - ret = 0; - } - else { - ret = DoHandShakeMsgType(ssl, input, inOutIdx, type, size, totalSz); - if (ret == 0) { - ssl->keys.dtls_expected_peer_handshake_number = - ssl->keys.dtls_peer_handshake_number + 1; - } - } - } - else if (ssl->keys.dtls_peer_handshake_number < - ssl->keys.dtls_expected_peer_handshake_number) { - /* Already saw this message and processed it. It can be ignored. */ - *inOutIdx += fragSz; - if(type == finished ) { - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) { - word32 digestSz = MacSize(ssl); - if (*inOutIdx + ssl->keys.padSz + digestSz > totalSz) - return BUFFER_E; - *inOutIdx += ssl->keys.padSz + digestSz; - } - else - #endif - { - if (*inOutIdx + ssl->keys.padSz > totalSz) { - WOLFSSL_ERROR(BUFFER_E); - return BUFFER_E; - } - *inOutIdx += ssl->keys.padSz; - } - } - if (IsDtlsNotSctpMode(ssl) && - VerifyForDtlsMsgPoolSend(ssl, type, fragOffset)) { - - ret = DtlsMsgPoolSend(ssl, 0); - } - } - else if (fragSz < size) { - /* Since this branch is in order, but fragmented, dtls_rx_msg_list will - * be pointing to the message with this fragment in it. Check it to see - * if it is completed. */ - if (ssl->dtls_rx_msg_list_sz < DTLS_POOL_SZ) { - DtlsMsgStore(ssl, ssl->keys.dtls_peer_handshake_number, - input + *inOutIdx, size, type, - fragOffset, fragSz, ssl->heap); - } - *inOutIdx += fragSz; - ret = 0; - if (ssl->dtls_rx_msg_list != NULL && - ssl->dtls_rx_msg_list->fragSz >= ssl->dtls_rx_msg_list->sz) - ret = DtlsMsgDrain(ssl); - } - else { - /* This branch is in order next, and a complete message. */ - ret = DoHandShakeMsgType(ssl, input, inOutIdx, type, size, totalSz); - if (ret == 0) { - if (type != client_hello || !IsDtlsNotSctpMode(ssl)) - ssl->keys.dtls_expected_peer_handshake_number++; - if (ssl->dtls_rx_msg_list != NULL) { - ret = DtlsMsgDrain(ssl); - } - } - } - - WOLFSSL_LEAVE("DoDtlsHandShakeMsg()", ret); - return ret; -} -#endif - -#ifndef WOLFSSL_NO_TLS12 - -#ifdef HAVE_AEAD - -#if !defined(NO_PUBLIC_GCM_SET_IV) && \ - (((defined(HAVE_FIPS) || defined(HAVE_SELFTEST)) && \ - (!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2))) || \ - (defined(HAVE_POLY1305) && defined(HAVE_CHACHA))) -static WC_INLINE void AeadIncrementExpIV(WOLFSSL* ssl) -{ - int i; - for (i = AEAD_MAX_EXP_SZ-1; i >= 0; i--) { - if (++ssl->keys.aead_exp_IV[i]) return; - } -} -#endif - - -#if defined(HAVE_POLY1305) && defined(HAVE_CHACHA) -/* Used for the older version of creating AEAD tags with Poly1305 */ -static int Poly1305TagOld(WOLFSSL* ssl, byte* additional, const byte* out, - byte* cipher, word16 sz, byte* tag) -{ - int ret = 0; - int msglen = (sz - ssl->specs.aead_mac_size); - word32 keySz = 32; - byte padding[8]; /* used to temporarily store lengths */ - -#ifdef CHACHA_AEAD_TEST - printf("Using old version of poly1305 input.\n"); -#endif - - if (msglen < 0) - return INPUT_CASE_ERROR; - - if ((ret = wc_Poly1305SetKey(ssl->auth.poly1305, cipher, keySz)) != 0) - return ret; - - if ((ret = wc_Poly1305Update(ssl->auth.poly1305, additional, - AEAD_AUTH_DATA_SZ)) != 0) - return ret; - - /* length of additional input plus padding */ - XMEMSET(padding, 0, sizeof(padding)); - padding[0] = AEAD_AUTH_DATA_SZ; - if ((ret = wc_Poly1305Update(ssl->auth.poly1305, padding, - sizeof(padding))) != 0) - return ret; - - - /* add cipher info and then its length */ - XMEMSET(padding, 0, sizeof(padding)); - if ((ret = wc_Poly1305Update(ssl->auth.poly1305, out, msglen)) != 0) - return ret; - - /* 32 bit size of cipher to 64 bit endian */ - padding[0] = msglen & 0xff; - padding[1] = (msglen >> 8) & 0xff; - padding[2] = ((word32)msglen >> 16) & 0xff; - padding[3] = ((word32)msglen >> 24) & 0xff; - if ((ret = wc_Poly1305Update(ssl->auth.poly1305, padding, sizeof(padding))) - != 0) - return ret; - - /* generate tag */ - if ((ret = wc_Poly1305Final(ssl->auth.poly1305, tag)) != 0) - return ret; - - return ret; -} - - -/* When the flag oldPoly is not set this follows RFC7905. When oldPoly is set - * the implementation follows an older draft for creating the nonce and MAC. - * The flag oldPoly gets set automatically depending on what cipher suite was - * negotiated in the handshake. This is able to be done because the IDs for the - * cipher suites was updated in RFC7905 giving unique values for the older - * draft in comparison to the more recent RFC. - * - * ssl WOLFSSL structure to get cipher and TLS state from - * out output buffer to hold encrypted data - * input data to encrypt - * sz size of input - * - * Return 0 on success negative values in error case - */ -static int ChachaAEADEncrypt(WOLFSSL* ssl, byte* out, const byte* input, - word16 sz) -{ - const byte* additionalSrc = input - RECORD_HEADER_SZ; - int ret = 0; - word32 msgLen = (sz - ssl->specs.aead_mac_size); - byte tag[POLY1305_AUTH_SZ]; - byte add[AEAD_AUTH_DATA_SZ]; - byte nonce[CHACHA20_NONCE_SZ]; - byte poly[CHACHA20_256_KEY_SIZE]; /* generated key for poly1305 */ - #ifdef CHACHA_AEAD_TEST - int i; - #endif - - XMEMSET(tag, 0, sizeof(tag)); - XMEMSET(nonce, 0, sizeof(nonce)); - XMEMSET(poly, 0, sizeof(poly)); - XMEMSET(add, 0, sizeof(add)); - - /* opaque SEQ number stored for AD */ - WriteSEQ(ssl, CUR_ORDER, add); - - if (ssl->options.oldPoly != 0) { - /* get nonce. SEQ should not be incremented again here */ - XMEMCPY(nonce + CHACHA20_OLD_OFFSET, add, OPAQUE32_LEN * 2); - } - - /* Store the type, version. Unfortunately, they are in - * the input buffer ahead of the plaintext. */ - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - additionalSrc -= DTLS_HANDSHAKE_EXTRA; - } - #endif - - /* add TLS message size to additional data */ - add[AEAD_AUTH_DATA_SZ - 2] = (msgLen >> 8) & 0xff; - add[AEAD_AUTH_DATA_SZ - 1] = msgLen & 0xff; - - XMEMCPY(add + AEAD_TYPE_OFFSET, additionalSrc, 3); - - #ifdef CHACHA_AEAD_TEST - printf("Encrypt Additional : "); - for (i = 0; i < AEAD_AUTH_DATA_SZ; i++) { - printf("%02x", add[i]); - } - printf("\n\n"); - printf("input before encryption :\n"); - for (i = 0; i < sz; i++) { - printf("%02x", input[i]); - if ((i + 1) % 16 == 0) - printf("\n"); - } - printf("\n"); - #endif - - if (ssl->options.oldPoly == 0) { - /* nonce is formed by 4 0x00 byte padded to the left followed by 8 byte - * record sequence number XORed with client_write_IV/server_write_IV */ - XMEMCPY(nonce, ssl->keys.aead_enc_imp_IV, CHACHA20_IMP_IV_SZ); - nonce[4] ^= add[0]; - nonce[5] ^= add[1]; - nonce[6] ^= add[2]; - nonce[7] ^= add[3]; - nonce[8] ^= add[4]; - nonce[9] ^= add[5]; - nonce[10] ^= add[6]; - nonce[11] ^= add[7]; - } - - /* set the nonce for chacha and get poly1305 key */ - if ((ret = wc_Chacha_SetIV(ssl->encrypt.chacha, nonce, 0)) != 0) { - ForceZero(nonce, CHACHA20_NONCE_SZ); - return ret; - } - - /* create Poly1305 key using chacha20 keystream */ - if ((ret = wc_Chacha_Process(ssl->encrypt.chacha, poly, - poly, sizeof(poly))) != 0) { - ForceZero(nonce, CHACHA20_NONCE_SZ); - return ret; - } - - /* set the counter after getting poly1305 key */ - if ((ret = wc_Chacha_SetIV(ssl->encrypt.chacha, nonce, 1)) != 0) { - ForceZero(nonce, CHACHA20_NONCE_SZ); - return ret; - } - ForceZero(nonce, CHACHA20_NONCE_SZ); /* done with nonce, clear it */ - - /* encrypt the plain text */ - if ((ret = wc_Chacha_Process(ssl->encrypt.chacha, out, - input, msgLen)) != 0) { - ForceZero(poly, sizeof(poly)); - return ret; - } - - /* get the poly1305 tag using either old padding scheme or more recent */ - if (ssl->options.oldPoly != 0) { - if ((ret = Poly1305TagOld(ssl, add, (const byte* )out, - poly, sz, tag)) != 0) { - ForceZero(poly, sizeof(poly)); - return ret; - } - } - else { - if ((ret = wc_Poly1305SetKey(ssl->auth.poly1305, poly, - sizeof(poly))) != 0) { - ForceZero(poly, sizeof(poly)); - return ret; - } - if ((ret = wc_Poly1305_MAC(ssl->auth.poly1305, add, - sizeof(add), out, msgLen, tag, sizeof(tag))) != 0) { - ForceZero(poly, sizeof(poly)); - return ret; - } - } - ForceZero(poly, sizeof(poly)); /* done with poly1305 key, clear it */ - - /* append tag to ciphertext */ - XMEMCPY(out + msgLen, tag, sizeof(tag)); - - AeadIncrementExpIV(ssl); - - #ifdef CHACHA_AEAD_TEST - printf("mac tag :\n"); - for (i = 0; i < 16; i++) { - printf("%02x", tag[i]); - if ((i + 1) % 16 == 0) - printf("\n"); - } - printf("\n\noutput after encrypt :\n"); - for (i = 0; i < sz; i++) { - printf("%02x", out[i]); - if ((i + 1) % 16 == 0) - printf("\n"); - } - printf("\n"); - #endif - - return ret; -} - - -/* When the flag oldPoly is not set this follows RFC7905. When oldPoly is set - * the implementation follows an older draft for creating the nonce and MAC. - * The flag oldPoly gets set automatically depending on what cipher suite was - * negotiated in the handshake. This is able to be done because the IDs for the - * cipher suites was updated in RFC7905 giving unique values for the older - * draft in comparison to the more recent RFC. - * - * ssl WOLFSSL structure to get cipher and TLS state from - * plain output buffer to hold decrypted data - * input data to decrypt - * sz size of input - * - * Return 0 on success negative values in error case - */ -static int ChachaAEADDecrypt(WOLFSSL* ssl, byte* plain, const byte* input, - word16 sz) -{ - byte add[AEAD_AUTH_DATA_SZ]; - byte nonce[CHACHA20_NONCE_SZ]; - byte tag[POLY1305_AUTH_SZ]; - byte poly[CHACHA20_256_KEY_SIZE]; /* generated key for mac */ - int ret = 0; - int msgLen = (sz - ssl->specs.aead_mac_size); - - #ifdef CHACHA_AEAD_TEST - int i; - printf("input before decrypt :\n"); - for (i = 0; i < sz; i++) { - printf("%02x", input[i]); - if ((i + 1) % 16 == 0) - printf("\n"); - } - printf("\n"); - #endif - - XMEMSET(tag, 0, sizeof(tag)); - XMEMSET(poly, 0, sizeof(poly)); - XMEMSET(nonce, 0, sizeof(nonce)); - XMEMSET(add, 0, sizeof(add)); - - /* sequence number field is 64-bits */ - WriteSEQ(ssl, PEER_ORDER, add); - - if (ssl->options.oldPoly != 0) { - /* get nonce, SEQ should not be incremented again here */ - XMEMCPY(nonce + CHACHA20_OLD_OFFSET, add, OPAQUE32_LEN * 2); - } - - /* get AD info */ - /* Store the type, version. */ - add[AEAD_TYPE_OFFSET] = ssl->curRL.type; - add[AEAD_VMAJ_OFFSET] = ssl->curRL.pvMajor; - add[AEAD_VMIN_OFFSET] = ssl->curRL.pvMinor; - - /* add TLS message size to additional data */ - add[AEAD_AUTH_DATA_SZ - 2] = (msgLen >> 8) & 0xff; - add[AEAD_AUTH_DATA_SZ - 1] = msgLen & 0xff; - - #ifdef CHACHA_AEAD_TEST - printf("Decrypt Additional : "); - for (i = 0; i < AEAD_AUTH_DATA_SZ; i++) { - printf("%02x", add[i]); - } - printf("\n\n"); - #endif - - if (ssl->options.oldPoly == 0) { - /* nonce is formed by 4 0x00 byte padded to the left followed by 8 byte - * record sequence number XORed with client_write_IV/server_write_IV */ - XMEMCPY(nonce, ssl->keys.aead_dec_imp_IV, CHACHA20_IMP_IV_SZ); - nonce[4] ^= add[0]; - nonce[5] ^= add[1]; - nonce[6] ^= add[2]; - nonce[7] ^= add[3]; - nonce[8] ^= add[4]; - nonce[9] ^= add[5]; - nonce[10] ^= add[6]; - nonce[11] ^= add[7]; - } - - /* set nonce and get poly1305 key */ - if ((ret = wc_Chacha_SetIV(ssl->decrypt.chacha, nonce, 0)) != 0) { - ForceZero(nonce, CHACHA20_NONCE_SZ); - return ret; - } - - /* use chacha20 keystream to get poly1305 key for tag */ - if ((ret = wc_Chacha_Process(ssl->decrypt.chacha, poly, - poly, sizeof(poly))) != 0) { - ForceZero(nonce, CHACHA20_NONCE_SZ); - return ret; - } - - /* set counter after getting poly1305 key */ - if ((ret = wc_Chacha_SetIV(ssl->decrypt.chacha, nonce, 1)) != 0) { - ForceZero(nonce, CHACHA20_NONCE_SZ); - return ret; - } - ForceZero(nonce, CHACHA20_NONCE_SZ); /* done with nonce, clear it */ - - /* get the tag using Poly1305 */ - if (ssl->options.oldPoly != 0) { - if ((ret = Poly1305TagOld(ssl, add, input, poly, sz, tag)) != 0) { - ForceZero(poly, sizeof(poly)); - return ret; - } - } - else { - if ((ret = wc_Poly1305SetKey(ssl->auth.poly1305, poly, - sizeof(poly))) != 0) { - ForceZero(poly, sizeof(poly)); - return ret; - } - if ((ret = wc_Poly1305_MAC(ssl->auth.poly1305, add, - sizeof(add), (byte*)input, msgLen, tag, sizeof(tag))) != 0) { - ForceZero(poly, sizeof(poly)); - return ret; - } - } - ForceZero(poly, sizeof(poly)); /* done with poly1305 key, clear it */ - - /* check tag sent along with packet */ - if (ConstantCompare(input + msgLen, tag, ssl->specs.aead_mac_size) != 0) { - WOLFSSL_MSG("MAC did not match"); - if (!ssl->options.dtls) - SendAlert(ssl, alert_fatal, bad_record_mac); - return VERIFY_MAC_ERROR; - } - - /* if the tag was good decrypt message */ - if ((ret = wc_Chacha_Process(ssl->decrypt.chacha, plain, - input, msgLen)) != 0) - return ret; - - #ifdef CHACHA_AEAD_TEST - printf("plain after decrypt :\n"); - for (i = 0; i < sz; i++) { - printf("%02x", plain[i]); - if ((i + 1) % 16 == 0) - printf("\n"); - } - printf("\n"); - #endif - - return ret; -} -#endif /* HAVE_CHACHA && HAVE_POLY1305 */ -#endif /* HAVE_AEAD */ - - -#if defined(BUILD_AESGCM) || defined(HAVE_AESCCM) - -#if !defined(NO_GCM_ENCRYPT_EXTRA) && \ - ((!defined(HAVE_FIPS) && !defined(HAVE_SELFTEST)) || \ - (defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))) -/* The following type is used to share code between AES-GCM and AES-CCM. */ - typedef int (*AesAuthEncryptFunc)(Aes* aes, byte* out, - const byte* in, word32 sz, - byte* iv, word32 ivSz, - byte* authTag, word32 authTagSz, - const byte* authIn, word32 authInSz); - #define AES_AUTH_ENCRYPT_FUNC AesAuthEncryptFunc - #define AES_GCM_ENCRYPT wc_AesGcmEncrypt_ex - #define AES_CCM_ENCRYPT wc_AesCcmEncrypt_ex -#else - #define AES_AUTH_ENCRYPT_FUNC wc_AesAuthEncryptFunc - #define AES_GCM_ENCRYPT wc_AesGcmEncrypt - #define AES_CCM_ENCRYPT wc_AesCcmEncrypt -#endif - -#endif - - -static WC_INLINE int EncryptDo(WOLFSSL* ssl, byte* out, const byte* input, - word16 sz, int asyncOkay) -{ - int ret = 0; -#ifdef WOLFSSL_ASYNC_CRYPT - WC_ASYNC_DEV* asyncDev = NULL; - word32 event_flags = WC_ASYNC_FLAG_CALL_AGAIN; -#else - (void)asyncOkay; -#endif - - (void)out; - (void)input; - (void)sz; - - switch (ssl->specs.bulk_cipher_algorithm) { - #ifdef BUILD_ARC4 - case wolfssl_rc4: - wc_Arc4Process(ssl->encrypt.arc4, out, input, sz); - break; - #endif - - #ifdef BUILD_DES3 - case wolfssl_triple_des: - #ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - asyncDev = &ssl->encrypt.des3->asyncDev; - ret = wolfSSL_AsyncInit(ssl, asyncDev, event_flags); - if (ret != 0) - break; - #endif - - ret = wc_Des3_CbcEncrypt(ssl->encrypt.des3, out, input, sz); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E && asyncOkay) { - ret = wolfSSL_AsyncPush(ssl, asyncDev); - } - #endif - break; - #endif - - #if defined(BUILD_AES) && defined(HAVE_AES_CBC) - case wolfssl_aes: - #ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - asyncDev = &ssl->encrypt.aes->asyncDev; - ret = wolfSSL_AsyncInit(ssl, asyncDev, event_flags); - if (ret != 0) - break; - #endif - #if defined(WOLFSSL_RENESAS_TSIP_TLS) && \ - !defined(NO_WOLFSSL_RENESAS_TSIP_TLS_SESSION) - if (tsip_useable(ssl)) { - ret = wc_tsip_AesCbcEncrypt(ssl->encrypt.aes, out, input, sz); - } else - #endif - ret = wc_AesCbcEncrypt(ssl->encrypt.aes, out, input, sz); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E && asyncOkay) { - ret = wolfSSL_AsyncPush(ssl, asyncDev); - } - #endif - break; - #endif - - #if defined(BUILD_AESGCM) || defined(HAVE_AESCCM) - case wolfssl_aes_gcm: - case wolfssl_aes_ccm:/* GCM AEAD macros use same size as CCM */ - { - AES_AUTH_ENCRYPT_FUNC aes_auth_fn; - const byte* additionalSrc; - - #ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - asyncDev = &ssl->encrypt.aes->asyncDev; - ret = wolfSSL_AsyncInit(ssl, asyncDev, event_flags); - if (ret != 0) - break; - #endif - - #if defined(BUILD_AESGCM) && defined(HAVE_AESCCM) - aes_auth_fn = (ssl->specs.bulk_cipher_algorithm == wolfssl_aes_gcm) - ? AES_GCM_ENCRYPT : AES_CCM_ENCRYPT; - #elif defined(BUILD_AESGCM) - aes_auth_fn = AES_GCM_ENCRYPT; - #else - aes_auth_fn = AES_CCM_ENCRYPT; - #endif - additionalSrc = input - 5; - - XMEMSET(ssl->encrypt.additional, 0, AEAD_AUTH_DATA_SZ); - - /* sequence number field is 64-bits */ - WriteSEQ(ssl, CUR_ORDER, ssl->encrypt.additional); - - /* Store the type, version. Unfortunately, they are in - * the input buffer ahead of the plaintext. */ - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - additionalSrc -= DTLS_HANDSHAKE_EXTRA; - } - #endif - XMEMCPY(ssl->encrypt.additional + AEAD_TYPE_OFFSET, - additionalSrc, 3); - - /* Store the length of the plain text minus the explicit - * IV length minus the authentication tag size. */ - c16toa(sz - AESGCM_EXP_IV_SZ - ssl->specs.aead_mac_size, - ssl->encrypt.additional + AEAD_LEN_OFFSET); -#if !defined(NO_PUBLIC_GCM_SET_IV) && \ - ((defined(HAVE_FIPS) || defined(HAVE_SELFTEST)) && \ - (!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2))) - XMEMCPY(ssl->encrypt.nonce, - ssl->keys.aead_enc_imp_IV, AESGCM_IMP_IV_SZ); - XMEMCPY(ssl->encrypt.nonce + AESGCM_IMP_IV_SZ, - ssl->keys.aead_exp_IV, AESGCM_EXP_IV_SZ); -#endif - ret = aes_auth_fn(ssl->encrypt.aes, - out + AESGCM_EXP_IV_SZ, input + AESGCM_EXP_IV_SZ, - sz - AESGCM_EXP_IV_SZ - ssl->specs.aead_mac_size, - ssl->encrypt.nonce, AESGCM_NONCE_SZ, - out + sz - ssl->specs.aead_mac_size, - ssl->specs.aead_mac_size, - ssl->encrypt.additional, AEAD_AUTH_DATA_SZ); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E && asyncOkay) { - ret = wolfSSL_AsyncPush(ssl, asyncDev); - } - #endif -#if !defined(NO_PUBLIC_GCM_SET_IV) && \ - ((!defined(HAVE_FIPS) && !defined(HAVE_SELFTEST)) || \ - (defined(HAVE_FIPS_VERSION) && (HAVE_FIPS_VERSION >= 2))) - XMEMCPY(out, - ssl->encrypt.nonce + AESGCM_IMP_IV_SZ, AESGCM_EXP_IV_SZ); -#endif - } - break; - #endif /* BUILD_AESGCM || HAVE_AESCCM */ - - #ifdef HAVE_CAMELLIA - case wolfssl_camellia: - ret = wc_CamelliaCbcEncrypt(ssl->encrypt.cam, out, input, sz); - break; - #endif - - #ifdef HAVE_HC128 - case wolfssl_hc128: - ret = wc_Hc128_Process(ssl->encrypt.hc128, out, input, sz); - break; - #endif - - #ifdef BUILD_RABBIT - case wolfssl_rabbit: - ret = wc_RabbitProcess(ssl->encrypt.rabbit, out, input, sz); - break; - #endif - - #if defined(HAVE_CHACHA) && defined(HAVE_POLY1305) - case wolfssl_chacha: - ret = ChachaAEADEncrypt(ssl, out, input, sz); - break; - #endif - - #ifdef HAVE_NULL_CIPHER - case wolfssl_cipher_null: - if (input != out) { - XMEMMOVE(out, input, sz); - } - break; - #endif - - #ifdef HAVE_IDEA - case wolfssl_idea: - ret = wc_IdeaCbcEncrypt(ssl->encrypt.idea, out, input, sz); - break; - #endif - - default: - WOLFSSL_MSG("wolfSSL Encrypt programming error"); - ret = ENCRYPT_ERROR; - } - -#ifdef WOLFSSL_ASYNC_CRYPT - /* if async is not okay, then block */ - if (ret == WC_PENDING_E && !asyncOkay) { - ret = wc_AsyncWait(ret, asyncDev, event_flags); - } -#endif - - return ret; -} - -static WC_INLINE int Encrypt(WOLFSSL* ssl, byte* out, const byte* input, word16 sz, - int asyncOkay) -{ - int ret = 0; - -#ifdef WOLFSSL_ASYNC_CRYPT - if (ssl->error == WC_PENDING_E) { - ssl->error = 0; /* clear async */ - } -#endif - - switch (ssl->encrypt.state) { - case CIPHER_STATE_BEGIN: - { - if (ssl->encrypt.setup == 0) { - WOLFSSL_MSG("Encrypt ciphers not setup"); - return ENCRYPT_ERROR; - } - - #ifdef HAVE_FUZZER - if (ssl->fuzzerCb) - ssl->fuzzerCb(ssl, input, sz, FUZZ_ENCRYPT, ssl->fuzzerCtx); - #endif - - #if defined(BUILD_AESGCM) || defined(HAVE_AESCCM) - /* make sure AES GCM/CCM memory is allocated */ - /* free for these happens in FreeCiphers */ - if (ssl->specs.bulk_cipher_algorithm == wolfssl_aes_ccm || - ssl->specs.bulk_cipher_algorithm == wolfssl_aes_gcm) { - /* make sure auth iv and auth are allocated */ - if (ssl->encrypt.additional == NULL) - ssl->encrypt.additional = (byte*)XMALLOC(AEAD_AUTH_DATA_SZ, - ssl->heap, DYNAMIC_TYPE_AES_BUFFER); - if (ssl->encrypt.nonce == NULL) - ssl->encrypt.nonce = (byte*)XMALLOC(AESGCM_NONCE_SZ, - ssl->heap, DYNAMIC_TYPE_AES_BUFFER); - if (ssl->encrypt.additional == NULL || - ssl->encrypt.nonce == NULL) { - return MEMORY_E; - } - } - #endif /* BUILD_AESGCM || HAVE_AESCCM */ - - /* Advance state and proceed */ - ssl->encrypt.state = CIPHER_STATE_DO; - } - FALL_THROUGH; - - case CIPHER_STATE_DO: - { - ret = EncryptDo(ssl, out, input, sz, asyncOkay); - - /* Advance state */ - ssl->encrypt.state = CIPHER_STATE_END; - - #ifdef WOLFSSL_ASYNC_CRYPT - /* If pending, then leave and return will resume below */ - if (ret == WC_PENDING_E) { - return ret; - } - #endif - } - FALL_THROUGH; - - case CIPHER_STATE_END: - { - #if defined(BUILD_AESGCM) || defined(HAVE_AESCCM) - if (ssl->specs.bulk_cipher_algorithm == wolfssl_aes_ccm || - ssl->specs.bulk_cipher_algorithm == wolfssl_aes_gcm) - { - /* finalize authentication cipher */ -#if !defined(NO_PUBLIC_GCM_SET_IV) && \ - ((defined(HAVE_FIPS) || defined(HAVE_SELFTEST)) && \ - (!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2))) - AeadIncrementExpIV(ssl); -#endif - if (ssl->encrypt.nonce) - ForceZero(ssl->encrypt.nonce, AESGCM_NONCE_SZ); - } - #endif /* BUILD_AESGCM || HAVE_AESCCM */ - break; - } - } - - /* Reset state */ - ssl->encrypt.state = CIPHER_STATE_BEGIN; - - return ret; -} - - -static WC_INLINE int DecryptDo(WOLFSSL* ssl, byte* plain, const byte* input, - word16 sz) -{ - int ret = 0; - - (void)plain; - (void)input; - (void)sz; - - switch (ssl->specs.bulk_cipher_algorithm) - { - #ifdef BUILD_ARC4 - case wolfssl_rc4: - wc_Arc4Process(ssl->decrypt.arc4, plain, input, sz); - break; - #endif - - #ifdef BUILD_DES3 - case wolfssl_triple_des: - #ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &ssl->decrypt.des3->asyncDev, - WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - break; - #endif - - ret = wc_Des3_CbcDecrypt(ssl->decrypt.des3, plain, input, sz); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &ssl->decrypt.des3->asyncDev); - } - #endif - break; - #endif - - #if defined(BUILD_AES) && defined(HAVE_AES_CBC) - case wolfssl_aes: - #ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &ssl->decrypt.aes->asyncDev, - WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - break; - #endif - #if defined(WOLFSSL_RENESAS_TSIP_TLS) && \ - !defined(NO_WOLFSSL_RENESAS_TSIP_TLS_SESSION) - if (tsip_useable(ssl)) { - ret = wc_tsip_AesCbcDecrypt(ssl->decrypt.aes, plain, input, sz); - } else - #endif - ret = wc_AesCbcDecrypt(ssl->decrypt.aes, plain, input, sz); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &ssl->decrypt.aes->asyncDev); - } - #endif - break; - #endif - - #if defined(BUILD_AESGCM) || defined(HAVE_AESCCM) - case wolfssl_aes_gcm: - case wolfssl_aes_ccm: /* GCM AEAD macros use same size as CCM */ - { - wc_AesAuthDecryptFunc aes_auth_fn; - - #ifdef WOLFSSL_ASYNC_CRYPT - /* initialize event */ - ret = wolfSSL_AsyncInit(ssl, &ssl->decrypt.aes->asyncDev, - WC_ASYNC_FLAG_CALL_AGAIN); - if (ret != 0) - break; - #endif - - #if defined(BUILD_AESGCM) && defined(HAVE_AESCCM) - aes_auth_fn = (ssl->specs.bulk_cipher_algorithm == wolfssl_aes_gcm) - ? wc_AesGcmDecrypt : wc_AesCcmDecrypt; - #elif defined(BUILD_AESGCM) - aes_auth_fn = wc_AesGcmDecrypt; - #else - aes_auth_fn = wc_AesCcmDecrypt; - #endif - - XMEMSET(ssl->decrypt.additional, 0, AEAD_AUTH_DATA_SZ); - - /* sequence number field is 64-bits */ - WriteSEQ(ssl, PEER_ORDER, ssl->decrypt.additional); - - ssl->decrypt.additional[AEAD_TYPE_OFFSET] = ssl->curRL.type; - ssl->decrypt.additional[AEAD_VMAJ_OFFSET] = ssl->curRL.pvMajor; - ssl->decrypt.additional[AEAD_VMIN_OFFSET] = ssl->curRL.pvMinor; - - c16toa(sz - AESGCM_EXP_IV_SZ - ssl->specs.aead_mac_size, - ssl->decrypt.additional + AEAD_LEN_OFFSET); - XMEMCPY(ssl->decrypt.nonce, ssl->keys.aead_dec_imp_IV, - AESGCM_IMP_IV_SZ); - XMEMCPY(ssl->decrypt.nonce + AESGCM_IMP_IV_SZ, input, - AESGCM_EXP_IV_SZ); - if ((ret = aes_auth_fn(ssl->decrypt.aes, - plain + AESGCM_EXP_IV_SZ, - input + AESGCM_EXP_IV_SZ, - sz - AESGCM_EXP_IV_SZ - ssl->specs.aead_mac_size, - ssl->decrypt.nonce, AESGCM_NONCE_SZ, - input + sz - ssl->specs.aead_mac_size, - ssl->specs.aead_mac_size, - ssl->decrypt.additional, AEAD_AUTH_DATA_SZ)) < 0) { - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - ret = wolfSSL_AsyncPush(ssl, &ssl->decrypt.aes->asyncDev); - } - #endif - } - } - break; - #endif /* BUILD_AESGCM || HAVE_AESCCM */ - - #ifdef HAVE_CAMELLIA - case wolfssl_camellia: - ret = wc_CamelliaCbcDecrypt(ssl->decrypt.cam, plain, input, sz); - break; - #endif - - #ifdef HAVE_HC128 - case wolfssl_hc128: - ret = wc_Hc128_Process(ssl->decrypt.hc128, plain, input, sz); - break; - #endif - - #ifdef BUILD_RABBIT - case wolfssl_rabbit: - ret = wc_RabbitProcess(ssl->decrypt.rabbit, plain, input, sz); - break; - #endif - - #if defined(HAVE_CHACHA) && defined(HAVE_POLY1305) - case wolfssl_chacha: - ret = ChachaAEADDecrypt(ssl, plain, input, sz); - break; - #endif - - #ifdef HAVE_NULL_CIPHER - case wolfssl_cipher_null: - if (input != plain) { - XMEMMOVE(plain, input, sz); - } - break; - #endif - - #ifdef HAVE_IDEA - case wolfssl_idea: - ret = wc_IdeaCbcDecrypt(ssl->decrypt.idea, plain, input, sz); - break; - #endif - - default: - WOLFSSL_MSG("wolfSSL Decrypt programming error"); - ret = DECRYPT_ERROR; - } - - return ret; -} - -static WC_INLINE int Decrypt(WOLFSSL* ssl, byte* plain, const byte* input, - word16 sz) -{ - int ret = 0; - -#ifdef WOLFSSL_ASYNC_CRYPT - ret = wolfSSL_AsyncPop(ssl, &ssl->decrypt.state); - if (ret != WC_NOT_PENDING_E) { - /* check for still pending */ - if (ret == WC_PENDING_E) - return ret; - - ssl->error = 0; /* clear async */ - - /* let failures through so CIPHER_STATE_END logic is run */ - } - else -#endif - { - /* Reset state */ - ret = 0; - ssl->decrypt.state = CIPHER_STATE_BEGIN; - } - - switch (ssl->decrypt.state) { - case CIPHER_STATE_BEGIN: - { - if (ssl->decrypt.setup == 0) { - WOLFSSL_MSG("Decrypt ciphers not setup"); - return DECRYPT_ERROR; - } - - #if defined(BUILD_AESGCM) || defined(HAVE_AESCCM) - /* make sure AES GCM/CCM memory is allocated */ - /* free for these happens in FreeCiphers */ - if (ssl->specs.bulk_cipher_algorithm == wolfssl_aes_ccm || - ssl->specs.bulk_cipher_algorithm == wolfssl_aes_gcm) { - /* make sure auth iv and auth are allocated */ - if (ssl->decrypt.additional == NULL) - ssl->decrypt.additional = (byte*)XMALLOC(AEAD_AUTH_DATA_SZ, - ssl->heap, DYNAMIC_TYPE_AES_BUFFER); - if (ssl->decrypt.nonce == NULL) - ssl->decrypt.nonce = (byte*)XMALLOC(AESGCM_NONCE_SZ, - ssl->heap, DYNAMIC_TYPE_AES_BUFFER); - if (ssl->decrypt.additional == NULL || - ssl->decrypt.nonce == NULL) { - return MEMORY_E; - } - } - #endif /* BUILD_AESGCM || HAVE_AESCCM */ - - /* Advance state and proceed */ - ssl->decrypt.state = CIPHER_STATE_DO; - } - FALL_THROUGH; - case CIPHER_STATE_DO: - { - ret = DecryptDo(ssl, plain, input, sz); - - /* Advance state */ - ssl->decrypt.state = CIPHER_STATE_END; - - #ifdef WOLFSSL_ASYNC_CRYPT - /* If pending, leave and return below */ - if (ret == WC_PENDING_E) { - return ret; - } - #endif - } - FALL_THROUGH; - case CIPHER_STATE_END: - { - #if defined(BUILD_AESGCM) || defined(HAVE_AESCCM) - /* make sure AES GCM/CCM nonce is cleared */ - if (ssl->specs.bulk_cipher_algorithm == wolfssl_aes_ccm || - ssl->specs.bulk_cipher_algorithm == wolfssl_aes_gcm) { - if (ssl->decrypt.nonce) - ForceZero(ssl->decrypt.nonce, AESGCM_NONCE_SZ); - - if (ret < 0) - ret = VERIFY_MAC_ERROR; - } - #endif /* BUILD_AESGCM || HAVE_AESCCM */ - break; - } - } - - /* Reset state */ - ssl->decrypt.state = CIPHER_STATE_BEGIN; - - /* handle mac error case */ - if (ret == VERIFY_MAC_ERROR) { - if (!ssl->options.dtls) - SendAlert(ssl, alert_fatal, bad_record_mac); - - #ifdef WOLFSSL_DTLS_DROP_STATS - ssl->macDropCount++; - #endif /* WOLFSSL_DTLS_DROP_STATS */ - } - - return ret; -} - -#endif /* !WOLFSSL_NO_TLS12 */ - -/* Check conditions for a cipher to have an explicit IV. - * - * ssl The SSL/TLS object. - * returns 1 if the cipher in use has an explicit IV and 0 otherwise. - */ -static WC_INLINE int CipherHasExpIV(WOLFSSL *ssl) -{ -#ifdef WOLFSSL_TLS13 - if (ssl->options.tls1_3) - return 0; -#endif - return (ssl->specs.cipher_type == aead) && - (ssl->specs.bulk_cipher_algorithm != wolfssl_chacha); -} - -/* check cipher text size for sanity */ -static int SanityCheckCipherText(WOLFSSL* ssl, word32 encryptSz) -{ -#ifdef HAVE_TRUNCATED_HMAC - word32 minLength = ssl->truncated_hmac ? (byte)TRUNCATED_HMAC_SZ - : ssl->specs.hash_size; -#else - word32 minLength = ssl->specs.hash_size; /* covers stream */ -#endif - -#ifndef WOLFSSL_AEAD_ONLY - if (ssl->specs.cipher_type == block) { -#ifdef HAVE_ENCRYPT_THEN_MAC - if (ssl->options.startedETMRead) { - if ((encryptSz - MacSize(ssl)) % ssl->specs.block_size) { - WOLFSSL_MSG("Block ciphertext not block size"); - return SANITY_CIPHER_E; - } - } - else -#endif - if (encryptSz % ssl->specs.block_size) { - WOLFSSL_MSG("Block ciphertext not block size"); - return SANITY_CIPHER_E; - } - - minLength++; /* pad byte */ - - if (ssl->specs.block_size > minLength) - minLength = ssl->specs.block_size; - - if (ssl->options.tls1_1) - minLength += ssl->specs.block_size; /* explicit IV */ - } - else -#endif - if (ssl->specs.cipher_type == aead) { - minLength = ssl->specs.aead_mac_size; /* authTag size */ - if (CipherHasExpIV(ssl)) - minLength += AESGCM_EXP_IV_SZ; /* explicit IV */ - } - - if (encryptSz < minLength) { - WOLFSSL_MSG("Ciphertext not minimum size"); - return SANITY_CIPHER_E; - } - - return 0; -} - - -#ifndef WOLFSSL_AEAD_ONLY -/* check all length bytes for the pad value, return 0 on success */ -static int PadCheck(const byte* a, byte pad, int length) -{ - int i; - int compareSum = 0; - - for (i = 0; i < length; i++) { - compareSum |= a[i] ^ pad; - } - - return compareSum; -} - - -/* Mask the padding bytes with the expected values. - * Constant time implementation - does maximum pad size possible. - * - * data Message data. - * sz Size of the message including MAC and padding and padding length. - * macSz Size of the MAC. - * returns 0 on success, otherwise failure. - */ -static byte MaskPadding(const byte* data, int sz, int macSz) -{ - int i; - int checkSz = sz - 1; - byte paddingSz = data[sz - 1]; - byte mask; - byte good = ctMaskGT(paddingSz, sz - 1 - macSz); - - if (checkSz > TLS_MAX_PAD_SZ) - checkSz = TLS_MAX_PAD_SZ; - - for (i = 0; i < checkSz; i++) { - mask = ctMaskLTE(i, paddingSz); - good |= mask & (data[sz - 1 - i] ^ paddingSz); - } - - return good; -} - -/* Mask the MAC in the message with the MAC calculated. - * Constant time implementation - starts looking for MAC where maximum padding - * size has it. - * - * data Message data. - * sz Size of the message including MAC and padding and padding length. - * macSz Size of the MAC data. - * expMac Expected MAC value. - * returns 0 on success, otherwise failure. - */ -static byte MaskMac(const byte* data, int sz, int macSz, byte* expMac) -{ - int i, j; - unsigned char mac[WC_MAX_DIGEST_SIZE]; - int scanStart = sz - 1 - TLS_MAX_PAD_SZ - macSz; - int macEnd = sz - 1 - data[sz - 1]; - int macStart = macEnd - macSz; - int r = 0; - unsigned char started, notEnded; - unsigned char good = 0; - - scanStart &= ctMaskIntGTE(scanStart, 0); - macStart &= ctMaskIntGTE(macStart, 0); - - /* Div on Intel has different speeds depending on value. - * Use a bitwise AND or mod a specific value (converted to mul). */ - if ((macSz & (macSz - 1)) == 0) - r = (macSz - (scanStart - macStart)) & (macSz - 1); -#ifndef NO_SHA - else if (macSz == WC_SHA_DIGEST_SIZE) - r = (macSz - (scanStart - macStart)) % WC_SHA_DIGEST_SIZE; -#endif -#ifdef WOLFSSL_SHA384 - else if (macSz == WC_SHA384_DIGEST_SIZE) - r = (macSz - (scanStart - macStart)) % WC_SHA384_DIGEST_SIZE; -#endif - - XMEMSET(mac, 0, macSz); - for (i = scanStart; i < sz; i += macSz) { - for (j = 0; j < macSz && j + i < sz; j++) { - started = ctMaskGTE(i + j, macStart); - notEnded = ctMaskLT(i + j, macEnd); - mac[j] |= started & notEnded & data[i + j]; - } - } - - if ((macSz & (macSz - 1)) == 0) { - for (i = 0; i < macSz; i++) - good |= expMac[i] ^ mac[(i + r) & (macSz - 1)]; - } -#ifndef NO_SHA - else if (macSz == WC_SHA_DIGEST_SIZE) { - for (i = 0; i < macSz; i++) - good |= expMac[i] ^ mac[(i + r) % WC_SHA_DIGEST_SIZE]; - } -#endif -#ifdef WOLFSSL_SHA384 - else if (macSz == WC_SHA384_DIGEST_SIZE) { - for (i = 0; i < macSz; i++) - good |= expMac[i] ^ mac[(i + r) % WC_SHA384_DIGEST_SIZE]; - } -#endif - - return good; -} - -/* timing resistant pad/verify check, return 0 on success */ -int TimingPadVerify(WOLFSSL* ssl, const byte* input, int padLen, int macSz, - int pLen, int content) -{ - byte verify[WC_MAX_DIGEST_SIZE]; - byte good; - int ret = 0; - - good = MaskPadding(input, pLen, macSz); - /* 4th argument has potential to underflow, ssl->hmac function should - * either increment the size by (macSz + padLen + 1) before use or check on - * the size to make sure is valid. */ - ret = ssl->hmac(ssl, verify, input, pLen - macSz - padLen - 1, padLen, - content, 1); - good |= MaskMac(input, pLen, ssl->specs.hash_size, verify); - - /* Non-zero on failure. */ - good = (byte)~(word32)good; - good &= good >> 4; - good &= good >> 2; - good &= good >> 1; - /* Make ret negative on masking failure. */ - ret -= 1 - good; - - /* Treat any failure as verify MAC error. */ - if (ret != 0) - ret = VERIFY_MAC_ERROR; - - return ret; -} -#endif - - -int DoApplicationData(WOLFSSL* ssl, byte* input, word32* inOutIdx) -{ - word32 msgSz = ssl->keys.encryptSz; - word32 idx = *inOutIdx; - int dataSz; - int ivExtra = 0; - byte* rawData = input + idx; /* keep current for hmac */ -#ifdef HAVE_LIBZ - byte decomp[MAX_RECORD_SIZE + MAX_COMP_EXTRA]; -#endif - -#ifdef WOLFSSL_EARLY_DATA - if (ssl->options.tls1_3 && ssl->options.handShakeDone == 0) { - if (ssl->options.side == WOLFSSL_SERVER_END && - ssl->earlyData != no_early_data && - ssl->options.clientState < CLIENT_FINISHED_COMPLETE) { - ssl->earlyDataSz += ssl->curSize; - if (ssl->earlyDataSz <= ssl->options.maxEarlyDataSz) { - WOLFSSL_MSG("Ignoring EarlyData!"); - *inOutIdx = ssl->buffers.inputBuffer.length; - return 0; - } - WOLFSSL_MSG("Too much EarlyData!"); - } - } -#endif - if (ssl->options.handShakeDone == 0) { - WOLFSSL_MSG("Received App data before a handshake completed"); - SendAlert(ssl, alert_fatal, unexpected_message); - return OUT_OF_ORDER_E; - } - -#ifndef WOLFSSL_AEAD_ONLY - if (ssl->specs.cipher_type == block) { - if (ssl->options.tls1_1) - ivExtra = ssl->specs.block_size; - } - else -#endif - if (ssl->specs.cipher_type == aead) { - if (CipherHasExpIV(ssl)) - ivExtra = AESGCM_EXP_IV_SZ; - } - - dataSz = msgSz - ivExtra - ssl->keys.padSz; -#if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - dataSz -= MacSize(ssl); -#endif - if (dataSz < 0) { - WOLFSSL_MSG("App data buffer error, malicious input?"); - SendAlert(ssl, alert_fatal, unexpected_message); - return BUFFER_ERROR; - } -#ifdef WOLFSSL_EARLY_DATA - if (ssl->earlyData > early_data_ext) { - if (ssl->earlyDataSz + dataSz > ssl->options.maxEarlyDataSz) { - SendAlert(ssl, alert_fatal, unexpected_message); - return WOLFSSL_FATAL_ERROR; - } - ssl->earlyDataSz += dataSz; - } -#endif - - /* read data */ - if (dataSz) { - int rawSz = dataSz; /* keep raw size for idx adjustment */ - -#ifdef HAVE_LIBZ - if (ssl->options.usingCompression) { - dataSz = myDeCompress(ssl, rawData, dataSz, decomp, sizeof(decomp)); - if (dataSz < 0) return dataSz; - } -#endif - idx += rawSz; - - ssl->buffers.clearOutputBuffer.buffer = rawData; - ssl->buffers.clearOutputBuffer.length = dataSz; - } - - idx += ssl->keys.padSz; -#if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - idx += MacSize(ssl); -#endif - -#ifdef HAVE_LIBZ - /* decompress could be bigger, overwrite after verify */ - if (ssl->options.usingCompression) - XMEMMOVE(rawData, decomp, dataSz); -#endif - - *inOutIdx = idx; - return 0; -} - - -/* process alert, return level */ -static int DoAlert(WOLFSSL* ssl, byte* input, word32* inOutIdx, int* type, - word32 totalSz) -{ - byte level; - byte code; - word32 dataSz = totalSz - *inOutIdx; - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "Alert"); - if (ssl->toInfoOn) - /* add record header back on to info + alert bytes level/code */ - AddPacketInfo(ssl, "Alert", alert, input + *inOutIdx - - RECORD_HEADER_SZ, RECORD_HEADER_SZ + ALERT_SIZE, - READ_PROTO, ssl->heap); - #endif - - if (IsEncryptionOn(ssl, 0)) { - dataSz -= ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - dataSz -= MacSize(ssl); - #endif - } - - /* make sure can read the message */ - if (dataSz != ALERT_SIZE) { -#ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, unexpected_message); -#endif - return BUFFER_E; - } - - level = input[(*inOutIdx)++]; - code = input[(*inOutIdx)++]; - ssl->alert_history.last_rx.code = code; - ssl->alert_history.last_rx.level = level; - *type = code; - if (level == alert_fatal) { - ssl->options.isClosed = 1; /* Don't send close_notify */ - } - - if (++ssl->options.alertCount >= WOLFSSL_ALERT_COUNT_MAX) { - WOLFSSL_MSG("Alert count exceeded"); -#ifdef WOLFSSL_EXTRA_ALERTS - if (level != alert_warning || code != close_notify) - SendAlert(ssl, alert_fatal, unexpected_message); -#endif - return ALERT_COUNT_E; - } - - WOLFSSL_MSG("Got alert"); - if (*type == close_notify) { - WOLFSSL_MSG("\tclose notify"); - ssl->options.closeNotify = 1; - } -#ifdef WOLFSSL_TLS13 - if (*type == decode_error) { - WOLFSSL_MSG("\tdecode error"); - } - if (*type == illegal_parameter) { - WOLFSSL_MSG("\tillegal parameter"); - } -#endif - WOLFSSL_ERROR(*type); - if (IsEncryptionOn(ssl, 0)) { - *inOutIdx += ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - *inOutIdx += MacSize(ssl); - #endif - } - - return level; -} - -static int GetInputData(WOLFSSL *ssl, word32 size) -{ - int in; - int inSz; - int maxLength; - int usedLength; - int dtlsExtra = 0; - - - /* check max input length */ - usedLength = ssl->buffers.inputBuffer.length - ssl->buffers.inputBuffer.idx; - maxLength = ssl->buffers.inputBuffer.bufferSize - usedLength; - inSz = (int)(size - usedLength); /* from last partial read */ - -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - if (size < ssl->dtls_expected_rx) - dtlsExtra = (int)(ssl->dtls_expected_rx - size); - inSz = ssl->dtls_expected_rx; - } -#endif - - /* check that no lengths or size values are negative */ - if (usedLength < 0 || maxLength < 0 || inSz <= 0) { - return BUFFER_ERROR; - } - - if (inSz > maxLength) { - if (GrowInputBuffer(ssl, size + dtlsExtra, usedLength) < 0) - return MEMORY_E; - } - - /* Put buffer data at start if not there */ - if (usedLength > 0 && ssl->buffers.inputBuffer.idx != 0) - XMEMMOVE(ssl->buffers.inputBuffer.buffer, - ssl->buffers.inputBuffer.buffer + ssl->buffers.inputBuffer.idx, - usedLength); - - /* remove processed data */ - ssl->buffers.inputBuffer.idx = 0; - ssl->buffers.inputBuffer.length = usedLength; - - /* read data from network */ - do { - in = wolfSSLReceive(ssl, - ssl->buffers.inputBuffer.buffer + - ssl->buffers.inputBuffer.length, - inSz); - if (in == WANT_READ) - return WANT_READ; - - if (in < 0) - return SOCKET_ERROR_E; - - if (in > inSz) - return RECV_OVERFLOW_E; - - ssl->buffers.inputBuffer.length += in; - inSz -= in; - - } while (ssl->buffers.inputBuffer.length < size); - -#ifdef WOLFSSL_DEBUG_TLS - if (ssl->buffers.inputBuffer.idx == 0) { - WOLFSSL_MSG("Data received"); - WOLFSSL_BUFFER(ssl->buffers.inputBuffer.buffer, - ssl->buffers.inputBuffer.length); - } -#endif - - return 0; -} - -#if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) -static WC_INLINE int VerifyMacEnc(WOLFSSL* ssl, const byte* input, word32 msgSz, - int content) -{ - int ret; -#ifdef HAVE_TRUNCATED_HMAC - word32 digestSz = ssl->truncated_hmac ? (byte)TRUNCATED_HMAC_SZ - : ssl->specs.hash_size; -#else - word32 digestSz = ssl->specs.hash_size; -#endif - byte verify[WC_MAX_DIGEST_SIZE]; - - WOLFSSL_MSG("Verify MAC of Encrypted Data"); - - if (msgSz < digestSz) { - return VERIFY_MAC_ERROR; - } - - ret = ssl->hmac(ssl, verify, input, msgSz - digestSz, -1, content, 1); - ret |= ConstantCompare(verify, input + msgSz - digestSz, digestSz); - if (ret != 0) { - return VERIFY_MAC_ERROR; - } - - return 0; -} -#endif - -static WC_INLINE int VerifyMac(WOLFSSL* ssl, const byte* input, word32 msgSz, - int content, word32* padSz) -{ -#if !defined(WOLFSSL_NO_TLS12) && !defined(WOLFSSL_AEAD_ONLY) - int ivExtra = 0; - int ret; - word32 pad = 0; - word32 padByte = 0; -#ifdef HAVE_TRUNCATED_HMAC - word32 digestSz = ssl->truncated_hmac ? (byte)TRUNCATED_HMAC_SZ - : ssl->specs.hash_size; -#else - word32 digestSz = ssl->specs.hash_size; -#endif - byte verify[WC_MAX_DIGEST_SIZE]; - - - if (ssl->specs.cipher_type == block) { - if (ssl->options.tls1_1) - ivExtra = ssl->specs.block_size; - pad = *(input + msgSz - ivExtra - 1); - padByte = 1; - - if (ssl->options.tls) { - ret = TimingPadVerify(ssl, input, pad, digestSz, msgSz - ivExtra, - content); - if (ret != 0) - return ret; - } - else { /* sslv3, some implementations have bad padding, but don't - * allow bad read */ - int badPadLen = 0; - byte dmy[sizeof(WOLFSSL) >= MAX_PAD_SIZE ? 1 : MAX_PAD_SIZE] = {0}; - byte* dummy = sizeof(dmy) < MAX_PAD_SIZE ? (byte*) ssl : dmy; - - (void)dmy; - - if (pad > (msgSz - digestSz - 1)) { - WOLFSSL_MSG("Plain Len not long enough for pad/mac"); - pad = 0; /* no bad read */ - badPadLen = 1; - } - PadCheck(dummy, (byte)pad, MAX_PAD_SIZE); /* timing only */ - ret = ssl->hmac(ssl, verify, input, msgSz - digestSz - pad - 1, pad, - content, 1); - if (ConstantCompare(verify, input + msgSz - digestSz - pad - 1, - digestSz) != 0) - return VERIFY_MAC_ERROR; - if (ret != 0 || badPadLen) - return VERIFY_MAC_ERROR; - } - } - else if (ssl->specs.cipher_type == stream) { - ret = ssl->hmac(ssl, verify, input, msgSz - digestSz, -1, content, 1); - if (ConstantCompare(verify, input + msgSz - digestSz, digestSz) != 0){ - return VERIFY_MAC_ERROR; - } - if (ret != 0) - return VERIFY_MAC_ERROR; - } -#endif /* !WOLFSSL_NO_TLS12 && !WOLFSSL_AEAD_ONLY */ - - if (ssl->specs.cipher_type == aead) { - *padSz = ssl->specs.aead_mac_size; - } -#if !defined(WOLFSSL_NO_TLS12) && !defined(WOLFSSL_AEAD_ONLY) - else { - *padSz = digestSz + pad + padByte; - } -#endif /* !WOLFSSL_NO_TLS12 && !WOLFSSL_AEAD_ONLY */ - - (void)input; - (void)msgSz; - (void)content; - - return 0; -} - - -/* process input requests, return 0 is done, 1 is call again to complete, and - negative number is error */ -int ProcessReply(WOLFSSL* ssl) -{ - int ret = 0, type, readSz; - int atomicUser = 0; - word32 startIdx = 0; -#if defined(WOLFSSL_DTLS) - int used; -#endif - -#ifdef ATOMIC_USER - if (ssl->ctx->DecryptVerifyCb) - atomicUser = 1; -#endif - - if (ssl->error != 0 && ssl->error != WANT_READ && ssl->error != WANT_WRITE - #ifdef WOLFSSL_ASYNC_CRYPT - && ssl->error != WC_PENDING_E - #endif - #ifdef WOLFSSL_NONBLOCK_OCSP - && ssl->error != OCSP_WANT_READ - #endif - ) { - WOLFSSL_MSG("ProcessReply retry in error state, not allowed"); - return ssl->error; - } - - for (;;) { - switch (ssl->options.processReply) { - - /* in the WOLFSSL_SERVER case, get the first byte for detecting - * old client hello */ - case doProcessInit: - - readSz = RECORD_HEADER_SZ; - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - readSz = DTLS_RECORD_HEADER_SZ; - #endif - - /* get header or return error */ - if (!ssl->options.dtls) { - if ((ret = GetInputData(ssl, readSz)) < 0) - return ret; - } else { - #ifdef WOLFSSL_DTLS - /* read ahead may already have header */ - used = ssl->buffers.inputBuffer.length - - ssl->buffers.inputBuffer.idx; - if (used < readSz) { - if ((ret = GetInputData(ssl, readSz)) < 0) - return ret; - } - #endif - } - -#ifdef OLD_HELLO_ALLOWED - - /* see if sending SSLv2 client hello */ - if ( ssl->options.side == WOLFSSL_SERVER_END && - ssl->options.clientState == NULL_STATE && - ssl->buffers.inputBuffer.buffer[ssl->buffers.inputBuffer.idx] - != handshake) { - byte b0, b1; - - ssl->options.processReply = runProcessOldClientHello; - - /* sanity checks before getting size at front */ - if (ssl->buffers.inputBuffer.buffer[ - ssl->buffers.inputBuffer.idx + OPAQUE16_LEN] != OLD_HELLO_ID) { - WOLFSSL_MSG("Not a valid old client hello"); - return PARSE_ERROR; - } - - if (ssl->buffers.inputBuffer.buffer[ - ssl->buffers.inputBuffer.idx + OPAQUE24_LEN] != SSLv3_MAJOR && - ssl->buffers.inputBuffer.buffer[ - ssl->buffers.inputBuffer.idx + OPAQUE24_LEN] != DTLS_MAJOR) { - WOLFSSL_MSG("Not a valid version in old client hello"); - return PARSE_ERROR; - } - - /* how many bytes need ProcessOldClientHello */ - b0 = - ssl->buffers.inputBuffer.buffer[ssl->buffers.inputBuffer.idx++]; - b1 = - ssl->buffers.inputBuffer.buffer[ssl->buffers.inputBuffer.idx++]; - ssl->curSize = (word16)(((b0 & 0x7f) << 8) | b1); - } - else { - ssl->options.processReply = getRecordLayerHeader; - continue; - } - FALL_THROUGH; - - /* in the WOLFSSL_SERVER case, run the old client hello */ - case runProcessOldClientHello: - - /* get sz bytes or return error */ - if (!ssl->options.dtls) { - if ((ret = GetInputData(ssl, ssl->curSize)) < 0) - return ret; - } else { - #ifdef WOLFSSL_DTLS - /* read ahead may already have */ - used = ssl->buffers.inputBuffer.length - - ssl->buffers.inputBuffer.idx; - if (used < ssl->curSize) - if ((ret = GetInputData(ssl, ssl->curSize)) < 0) - return ret; - #endif /* WOLFSSL_DTLS */ - } - - ret = ProcessOldClientHello(ssl, ssl->buffers.inputBuffer.buffer, - &ssl->buffers.inputBuffer.idx, - ssl->buffers.inputBuffer.length - - ssl->buffers.inputBuffer.idx, - ssl->curSize); - if (ret < 0) - return ret; - - else if (ssl->buffers.inputBuffer.idx == - ssl->buffers.inputBuffer.length) { - ssl->options.processReply = doProcessInit; - return 0; - } - -#endif /* OLD_HELLO_ALLOWED */ - FALL_THROUGH; - - /* get the record layer header */ - case getRecordLayerHeader: - - ret = GetRecordHeader(ssl, ssl->buffers.inputBuffer.buffer, - &ssl->buffers.inputBuffer.idx, - &ssl->curRL, &ssl->curSize); -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls && ret == SEQUENCE_ERROR) { - WOLFSSL_MSG("Silently dropping out of order DTLS message"); - ssl->options.processReply = doProcessInit; - ssl->buffers.inputBuffer.length = 0; - ssl->buffers.inputBuffer.idx = 0; -#ifdef WOLFSSL_DTLS_DROP_STATS - ssl->replayDropCount++; -#endif /* WOLFSSL_DTLS_DROP_STATS */ - - if (IsDtlsNotSctpMode(ssl) && ssl->options.dtlsHsRetain) { - ret = DtlsMsgPoolSend(ssl, 0); - if (ret != 0) - return ret; - } - - continue; - } -#endif - if (ret != 0) - return ret; - -#ifdef WOLFSSL_TLS13 - if (IsAtLeastTLSv1_3(ssl->version) && IsEncryptionOn(ssl, 0) && - ssl->curRL.type != application_data && - ssl->curRL.type != change_cipher_spec) { - SendAlert(ssl, alert_fatal, unexpected_message); - return PARSE_ERROR; - } -#endif - - ssl->options.processReply = getData; - FALL_THROUGH; - - /* retrieve record layer data */ - case getData: - - /* get sz bytes or return error */ - if (!ssl->options.dtls) { - if ((ret = GetInputData(ssl, ssl->curSize)) < 0) { -#ifdef WOLFSSL_EXTRA_ALERTS - if (ret != WANT_READ) - SendAlert(ssl, alert_fatal, bad_record_mac); -#endif - return ret; - } - } - else { -#ifdef WOLFSSL_DTLS - /* read ahead may already have */ - used = ssl->buffers.inputBuffer.length - - ssl->buffers.inputBuffer.idx; - if (used < ssl->curSize) - if ((ret = GetInputData(ssl, ssl->curSize)) < 0) - return ret; -#endif - } - - if (IsEncryptionOn(ssl, 0)) { - int tooLong = 0; - -#ifdef WOLFSSL_TLS13 - if (IsAtLeastTLSv1_3(ssl->version)) { - tooLong = ssl->curSize > MAX_TLS13_ENC_SZ; - tooLong |= ssl->curSize - ssl->specs.aead_mac_size > - MAX_TLS13_PLAIN_SZ; - } -#endif -#ifdef WOLFSSL_EXTRA_ALERTS - if (!IsAtLeastTLSv1_3(ssl->version)) - tooLong = ssl->curSize > MAX_TLS_CIPHER_SZ; -#endif - if (tooLong) { - WOLFSSL_MSG("Encrypted data too long"); -#if defined(WOLFSSL_TLS13) || defined(WOLFSSL_EXTRA_ALERTS) - SendAlert(ssl, alert_fatal, record_overflow); -#endif - return BUFFER_ERROR; - } - } - ssl->keys.padSz = 0; - - ssl->options.processReply = verifyEncryptedMessage; - startIdx = ssl->buffers.inputBuffer.idx; /* in case > 1 msg per */ - FALL_THROUGH; - - /* verify digest of encrypted message */ - case verifyEncryptedMessage: -#if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (IsEncryptionOn(ssl, 0) && ssl->keys.decryptedCur == 0 && - !atomicUser && ssl->options.startedETMRead) { - ret = VerifyMacEnc(ssl, ssl->buffers.inputBuffer.buffer + - ssl->buffers.inputBuffer.idx, - ssl->curSize, ssl->curRL.type); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) - return ret; - #endif - if (ret < 0) { - WOLFSSL_MSG("VerifyMacEnc failed"); - WOLFSSL_ERROR(ret); - #ifdef WOLFSSL_DTLS - /* If in DTLS mode, if the decrypt fails for any - * reason, pretend the datagram never happened. */ - if (ssl->options.dtls) { - ssl->options.processReply = doProcessInit; - ssl->buffers.inputBuffer.idx = - ssl->buffers.inputBuffer.length; - #ifdef WOLFSSL_DTLS_DROP_STATS - ssl->macDropCount++; - #endif /* WOLFSSL_DTLS_DROP_STATS */ - } - #endif /* WOLFSSL_DTLS */ - #ifdef WOLFSSL_EXTRA_ALERTS - if (!ssl->options.dtls) - SendAlert(ssl, alert_fatal, bad_record_mac); - #endif - return DECRYPT_ERROR; - } - ssl->keys.encryptSz = ssl->curSize; - } -#endif - ssl->options.processReply = decryptMessage; - FALL_THROUGH; - - /* decrypt message */ - case decryptMessage: - -#if !defined(WOLFSSL_TLS13) || defined(WOLFSSL_TLS13_DRAFT_18) - if (IsEncryptionOn(ssl, 0) && ssl->keys.decryptedCur == 0) -#else - if (IsEncryptionOn(ssl, 0) && ssl->keys.decryptedCur == 0 && - (!IsAtLeastTLSv1_3(ssl->version) || - ssl->curRL.type != change_cipher_spec)) -#endif - { - bufferStatic* in = &ssl->buffers.inputBuffer; - - ret = SanityCheckCipherText(ssl, ssl->curSize); - if (ret < 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, bad_record_mac); - #endif - return ret; - } - - if (atomicUser) { - #ifdef ATOMIC_USER - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) { - ret = ssl->ctx->VerifyDecryptCb(ssl, - in->buffer + in->idx, in->buffer + in->idx, - ssl->curSize - MacSize(ssl), - ssl->curRL.type, 1, &ssl->keys.padSz, - ssl->DecryptVerifyCtx); - } - else - #endif - { - ret = ssl->ctx->DecryptVerifyCb(ssl, - in->buffer + in->idx, - in->buffer + in->idx, - ssl->curSize, ssl->curRL.type, 1, - &ssl->keys.padSz, ssl->DecryptVerifyCtx); - } - #endif /* ATOMIC_USER */ - } - else { - if (!ssl->options.tls1_3) { - #ifndef WOLFSSL_NO_TLS12 - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) { - word32 digestSz = MacSize(ssl); - ret = Decrypt(ssl, - in->buffer + in->idx, - in->buffer + in->idx, - ssl->curSize - digestSz); - ssl->keys.padSz = - in->buffer[in->idx + ssl->curSize - digestSz - 1]; - ssl->keys.padSz += 1; - ssl->keys.decryptedCur = 1; - } - else - #endif - { - ret = Decrypt(ssl, - in->buffer + in->idx, - in->buffer + in->idx, - ssl->curSize); - } - #else - ret = DECRYPT_ERROR; - #endif - } - else - { - #ifdef WOLFSSL_TLS13 - #if defined(WOLFSSL_TLS13_DRAFT_18) || \ - defined(WOLFSSL_TLS13_DRAFT_22) || \ - defined(WOLFSSL_TLS13_DRAFT_23) - ret = DecryptTls13(ssl, - in->buffer + in->idx, - in->buffer + in->idx, - ssl->curSize, NULL, 0); - #else - ret = DecryptTls13(ssl, - in->buffer + in->idx, - in->buffer + in->idx, - ssl->curSize, - (byte*)&ssl->curRL, RECORD_HEADER_SZ); - #endif - #else - ret = DECRYPT_ERROR; - #endif /* WOLFSSL_TLS13 */ - } - } - - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) - return ret; - #endif - - if (ret >= 0) { - #ifndef WOLFSSL_NO_TLS12 - /* handle success */ - #ifndef WOLFSSL_AEAD_ONLY - if (ssl->options.tls1_1 && ssl->specs.cipher_type == block) - ssl->buffers.inputBuffer.idx += ssl->specs.block_size; - #endif - /* go past TLSv1.1 IV */ - if (CipherHasExpIV(ssl)) - ssl->buffers.inputBuffer.idx += AESGCM_EXP_IV_SZ; - #endif - } - else { - WOLFSSL_MSG("Decrypt failed"); - WOLFSSL_ERROR(ret); - #ifdef WOLFSSL_EARLY_DATA - if (ssl->options.tls1_3) { - if (ssl->options.side == WOLFSSL_SERVER_END && - ssl->earlyData != no_early_data && - ssl->options.clientState < - CLIENT_FINISHED_COMPLETE) { - ssl->earlyDataSz += ssl->curSize; - if (ssl->earlyDataSz <= - ssl->options.maxEarlyDataSz) { - WOLFSSL_MSG("Ignoring EarlyData!"); - if (ssl->keys.peer_sequence_number_lo-- == 0) - ssl->keys.peer_sequence_number_hi--; - ssl->options.processReply = doProcessInit; - ssl->buffers.inputBuffer.idx = - ssl->buffers.inputBuffer.length; - return 0; - } - WOLFSSL_MSG("Too much EarlyData!"); - } - SendAlert(ssl, alert_fatal, bad_record_mac); - } - #endif - #ifdef WOLFSSL_DTLS - /* If in DTLS mode, if the decrypt fails for any - * reason, pretend the datagram never happened. */ - if (ssl->options.dtls) { - ssl->options.processReply = doProcessInit; - ssl->buffers.inputBuffer.idx = - ssl->buffers.inputBuffer.length; - #ifdef WOLFSSL_DTLS_DROP_STATS - ssl->macDropCount++; - #endif /* WOLFSSL_DTLS_DROP_STATS */ - } - #endif /* WOLFSSL_DTLS */ - return DECRYPT_ERROR; - } - } - - ssl->options.processReply = verifyMessage; - FALL_THROUGH; - - /* verify digest of message */ - case verifyMessage: - -#if !defined(WOLFSSL_TLS13) || defined(WOLFSSL_TLS13_DRAFT_18) - if (IsEncryptionOn(ssl, 0) && ssl->keys.decryptedCur == 0) -#else - if (IsEncryptionOn(ssl, 0) && ssl->keys.decryptedCur == 0 && - (!IsAtLeastTLSv1_3(ssl->version) || - ssl->curRL.type != change_cipher_spec)) -#endif - { - if (!atomicUser -#if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - && !ssl->options.startedETMRead -#endif - ) { - ret = VerifyMac(ssl, ssl->buffers.inputBuffer.buffer + - ssl->buffers.inputBuffer.idx, - ssl->curSize, ssl->curRL.type, - &ssl->keys.padSz); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) - return ret; - #endif - if (ret < 0) { - WOLFSSL_MSG("VerifyMac failed"); - WOLFSSL_ERROR(ret); - #ifdef WOLFSSL_DTLS - /* If in DTLS mode, if the decrypt fails for any - * reason, pretend the datagram never happened. */ - if (ssl->options.dtls) { - ssl->options.processReply = doProcessInit; - ssl->buffers.inputBuffer.idx = - ssl->buffers.inputBuffer.length; - #ifdef WOLFSSL_DTLS_DROP_STATS - ssl->macDropCount++; - #endif /* WOLFSSL_DTLS_DROP_STATS */ - } - #endif /* WOLFSSL_DTLS */ - #ifdef WOLFSSL_EXTRA_ALERTS - if (!ssl->options.dtls) - SendAlert(ssl, alert_fatal, bad_record_mac); - #endif - return DECRYPT_ERROR; - } - } - - ssl->keys.encryptSz = ssl->curSize; - ssl->keys.decryptedCur = 1; -#ifdef WOLFSSL_TLS13 - if (ssl->options.tls1_3) { - word16 i = (word16)(ssl->buffers.inputBuffer.length - - ssl->keys.padSz); - /* Remove padding from end of plain text. */ - for (--i; i > ssl->buffers.inputBuffer.idx; i--) { - if (ssl->buffers.inputBuffer.buffer[i] != 0) - break; - } - /* Get the real content type from the end of the data. */ - ssl->curRL.type = ssl->buffers.inputBuffer.buffer[i]; - ssl->keys.padSz = ssl->buffers.inputBuffer.length - i; - } -#endif - } - - ssl->options.processReply = runProcessingOneMessage; - FALL_THROUGH; - - /* the record layer is here */ - case runProcessingOneMessage: - - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (IsEncryptionOn(ssl, 0) && ssl->options.startedETMRead) { - if (ssl->buffers.inputBuffer.length - ssl->keys.padSz - - ssl->buffers.inputBuffer.idx - - MacSize(ssl) > MAX_PLAINTEXT_SZ) { - WOLFSSL_MSG("Plaintext too long - Encrypt-Then-MAC"); - #if defined(WOLFSSL_EXTRA_ALERTS) - SendAlert(ssl, alert_fatal, record_overflow); - #endif - return BUFFER_ERROR; - } - } - else - #endif - if (ssl->buffers.inputBuffer.length - ssl->keys.padSz - - ssl->buffers.inputBuffer.idx > MAX_PLAINTEXT_SZ) { - WOLFSSL_MSG("Plaintext too long"); -#if defined(WOLFSSL_TLS13) || defined(WOLFSSL_EXTRA_ALERTS) - SendAlert(ssl, alert_fatal, record_overflow); -#endif - return BUFFER_ERROR; - } - - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - DtlsUpdateWindow(ssl); - } - #endif /* WOLFSSL_DTLS */ - - WOLFSSL_MSG("received record layer msg"); - - switch (ssl->curRL.type) { - case handshake : - /* debugging in DoHandShakeMsg */ - if (ssl->options.dtls) { -#ifdef WOLFSSL_DTLS - ret = DoDtlsHandShakeMsg(ssl, - ssl->buffers.inputBuffer.buffer, - &ssl->buffers.inputBuffer.idx, - ssl->buffers.inputBuffer.length); -#endif - } - else if (!IsAtLeastTLSv1_3(ssl->version)) { -#ifndef WOLFSSL_NO_TLS12 - ret = DoHandShakeMsg(ssl, - ssl->buffers.inputBuffer.buffer, - &ssl->buffers.inputBuffer.idx, - ssl->buffers.inputBuffer.length); -#else - ret = BUFFER_ERROR; -#endif - } - else { -#ifdef WOLFSSL_TLS13 - ret = DoTls13HandShakeMsg(ssl, - ssl->buffers.inputBuffer.buffer, - &ssl->buffers.inputBuffer.idx, - ssl->buffers.inputBuffer.length); - #ifdef WOLFSSL_EARLY_DATA - if (ret != 0) - return ret; - if (ssl->options.side == WOLFSSL_SERVER_END && - ssl->earlyData > early_data_ext && - ssl->options.handShakeState == HANDSHAKE_DONE) { - ssl->earlyData = no_early_data; - ssl->options.processReply = doProcessInit; - return ZERO_RETURN; - } - #endif -#else - ret = BUFFER_ERROR; -#endif - } - if (ret != 0) { - WOLFSSL_ERROR(ret); - return ret; - } - break; - - case change_cipher_spec: - WOLFSSL_MSG("got CHANGE CIPHER SPEC"); - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "ChangeCipher"); - /* add record header back on info */ - if (ssl->toInfoOn) { - AddPacketInfo(ssl, "ChangeCipher", - change_cipher_spec, - ssl->buffers.inputBuffer.buffer + - ssl->buffers.inputBuffer.idx - RECORD_HEADER_SZ, - 1 + RECORD_HEADER_SZ, READ_PROTO, ssl->heap); - #ifdef WOLFSSL_CALLBACKS - AddLateRecordHeader(&ssl->curRL, &ssl->timeoutInfo); - #endif - } - #endif - -#ifdef WOLFSSL_TLS13 - #ifdef WOLFSSL_TLS13_DRAFT_18 - if (IsAtLeastTLSv1_3(ssl->version)) { - SendAlert(ssl, alert_fatal, illegal_parameter); - return UNKNOWN_RECORD_TYPE; - } - #else - if (IsAtLeastTLSv1_3(ssl->version)) { - word32 i = ssl->buffers.inputBuffer.idx; - if (ssl->options.handShakeState == HANDSHAKE_DONE) { - SendAlert(ssl, alert_fatal, unexpected_message); - return UNKNOWN_RECORD_TYPE; - } - if (ssl->curSize != 1 || - ssl->buffers.inputBuffer.buffer[i] != 1) { - SendAlert(ssl, alert_fatal, illegal_parameter); - return UNKNOWN_RECORD_TYPE; - } - ssl->buffers.inputBuffer.idx++; - break; - } - #endif -#endif - -#ifndef WOLFSSL_NO_TLS12 - ret = SanityCheckMsgReceived(ssl, change_cipher_hs); - if (ret != 0) { - if (!ssl->options.dtls) { - return ret; - } - else { - #ifdef WOLFSSL_DTLS - /* Check for duplicate CCS message in DTLS mode. - * DTLS allows for duplicate messages, and it should be - * skipped. Also skip if out of order. */ - if (ret != DUPLICATE_MSG_E && ret != OUT_OF_ORDER_E) - return ret; - - if (IsDtlsNotSctpMode(ssl)) { - ret = DtlsMsgPoolSend(ssl, 1); - if (ret != 0) - return ret; - } - - if (ssl->curSize != 1) { - WOLFSSL_MSG("Malicious or corrupted" - " duplicate ChangeCipher msg"); - return LENGTH_ERROR; - } - ssl->buffers.inputBuffer.idx++; - break; - #endif /* WOLFSSL_DTLS */ - } - } - - if (IsEncryptionOn(ssl, 0) && ssl->options.handShakeDone) { - ssl->buffers.inputBuffer.idx += ssl->keys.padSz; - ssl->curSize -= (word16) ssl->buffers.inputBuffer.idx; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) { - word32 digestSz = MacSize(ssl); - ssl->buffers.inputBuffer.idx += digestSz; - ssl->curSize -= digestSz; - } - #endif - } - - if (ssl->curSize != 1) { - WOLFSSL_MSG("Malicious or corrupted ChangeCipher msg"); - return LENGTH_ERROR; - } - - ssl->buffers.inputBuffer.idx++; - ssl->keys.encryptionOn = 1; - - /* setup decrypt keys for following messages */ - /* XXX This might not be what we want to do when - * receiving a CCS with multicast. We update the - * key when the application updates them. */ - if ((ret = SetKeysSide(ssl, DECRYPT_SIDE_ONLY)) != 0) - return ret; - - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - ssl->options.startedETMRead = ssl->options.encThenMac; - #endif - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - WOLFSSL_DTLS_PEERSEQ* peerSeq = ssl->keys.peerSeq; -#ifdef WOLFSSL_MULTICAST - if (ssl->options.haveMcast) { - peerSeq += ssl->keys.curPeerId; - peerSeq->highwaterMark = UpdateHighwaterMark(0, - ssl->ctx->mcastFirstSeq, - ssl->ctx->mcastSecondSeq, - ssl->ctx->mcastMaxSeq); - } -#endif - peerSeq->nextEpoch++; - peerSeq->prevSeq_lo = peerSeq->nextSeq_lo; - peerSeq->prevSeq_hi = peerSeq->nextSeq_hi; - peerSeq->nextSeq_lo = 0; - peerSeq->nextSeq_hi = 0; - XMEMCPY(peerSeq->prevWindow, peerSeq->window, - DTLS_SEQ_SZ); - XMEMSET(peerSeq->window, 0, DTLS_SEQ_SZ); - } - #endif - - #ifdef HAVE_LIBZ - if (ssl->options.usingCompression) - if ( (ret = InitStreams(ssl)) != 0) - return ret; - #endif - ret = BuildFinished(ssl, &ssl->hsHashes->verifyHashes, - ssl->options.side == WOLFSSL_CLIENT_END ? - server : client); - if (ret != 0) - return ret; -#endif /* !WOLFSSL_NO_TLS12 */ - break; - - case application_data: - WOLFSSL_MSG("got app DATA"); - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls && ssl->options.dtlsHsRetain) { - FreeHandshakeResources(ssl); - ssl->options.dtlsHsRetain = 0; - } - #endif - #ifdef WOLFSSL_TLS13 - if (ssl->keys.keyUpdateRespond) { - WOLFSSL_MSG("No KeyUpdate from peer seen"); - return SANITY_MSG_E; - } - #endif - if ((ret = DoApplicationData(ssl, - ssl->buffers.inputBuffer.buffer, - &ssl->buffers.inputBuffer.idx)) - != 0) { - WOLFSSL_ERROR(ret); - return ret; - } - break; - - case alert: - WOLFSSL_MSG("got ALERT!"); - ret = DoAlert(ssl, ssl->buffers.inputBuffer.buffer, - &ssl->buffers.inputBuffer.idx, &type, - ssl->buffers.inputBuffer.length); - if (ret == alert_fatal) - return FATAL_ERROR; - else if (ret < 0) - return ret; - - /* catch warnings that are handled as errors */ - if (type == close_notify) - return ssl->error = ZERO_RETURN; - - if (type == decrypt_error) - return FATAL_ERROR; - break; - - default: - WOLFSSL_ERROR(UNKNOWN_RECORD_TYPE); - return UNKNOWN_RECORD_TYPE; - } - - ssl->options.processReply = doProcessInit; - - /* input exhausted? */ - if (ssl->buffers.inputBuffer.idx >= ssl->buffers.inputBuffer.length) - return 0; - - /* more messages per record */ - else if ((ssl->buffers.inputBuffer.idx - startIdx) < ssl->curSize) { - WOLFSSL_MSG("More messages in record"); - - ssl->options.processReply = runProcessingOneMessage; - - if (IsEncryptionOn(ssl, 0)) { - WOLFSSL_MSG("Bundled encrypted messages, remove middle pad"); - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) { - word32 digestSz = MacSize(ssl); - if (ssl->buffers.inputBuffer.idx >= - ssl->keys.padSz + digestSz) { - ssl->buffers.inputBuffer.idx -= - ssl->keys.padSz + digestSz; - } - else { - WOLFSSL_MSG("\tmiddle padding error"); - return FATAL_ERROR; - } - } - else - #endif - { - if (ssl->buffers.inputBuffer.idx >= ssl->keys.padSz) { - ssl->buffers.inputBuffer.idx -= ssl->keys.padSz; - } - else { - WOLFSSL_MSG("\tmiddle padding error"); - return FATAL_ERROR; - } - } - } - - continue; - } - /* more records */ - else { - WOLFSSL_MSG("More records in input"); - ssl->options.processReply = doProcessInit; - continue; - } - - default: - WOLFSSL_MSG("Bad process input state, programming error"); - return INPUT_CASE_ERROR; - } - } -} - - -int SendChangeCipher(WOLFSSL* ssl) -{ - byte *output; - int sendSz = RECORD_HEADER_SZ + ENUM_LEN; - int idx = RECORD_HEADER_SZ; - int ret; - - #ifdef OPENSSL_EXTRA - ssl->cbmode = SSL_CB_MODE_WRITE; - if (ssl->options.side == WOLFSSL_SERVER_END){ - ssl->options.serverState = SERVER_CHANGECIPHERSPEC_COMPLETE; - if (ssl->CBIS != NULL) - ssl->CBIS(ssl, SSL_CB_ACCEPT_LOOP, SSL_SUCCESS); - } - else{ - ssl->options.clientState = - CLIENT_CHANGECIPHERSPEC_COMPLETE; - if (ssl->CBIS != NULL) - ssl->CBIS(ssl, SSL_CB_CONNECT_LOOP, SSL_SUCCESS); - } - #endif - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - sendSz += DTLS_RECORD_EXTRA; - idx += DTLS_RECORD_EXTRA; - } - #endif - - /* are we in scr */ - if (IsEncryptionOn(ssl, 1) && ssl->options.handShakeDone) { - sendSz += MAX_MSG_EXTRA; - } - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) - return ret; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddRecordHeader(output, 1, change_cipher_spec, ssl); - - output[idx] = 1; /* turn it on */ - - if (IsEncryptionOn(ssl, 1) && ssl->options.handShakeDone) { - byte input[ENUM_LEN]; - int inputSz = ENUM_LEN; - - input[0] = 1; /* turn it on */ - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - change_cipher_spec, 0, 0, 0); - if (sendSz < 0) { - return sendSz; - } - } - - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - DtlsSEQIncrement(ssl, CUR_ORDER); - if ((ret = DtlsMsgPoolSave(ssl, output, sendSz)) != 0) - return ret; - } - #endif - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) AddPacketName(ssl, "ChangeCipher"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "ChangeCipher", change_cipher_spec, output, - sendSz, WRITE_PROTO, ssl->heap); - #endif - ssl->buffers.outputBuffer.length += sendSz; - - if (ssl->options.groupMessages) - return 0; - #if defined(WOLFSSL_DTLS) && !defined(WOLFSSL_DEBUG_DTLS) - else if (ssl->options.dtls) { - /* If using DTLS, force the ChangeCipherSpec message to be in the - * same datagram as the finished message. */ - return 0; - } - #endif - else - return SendBuffered(ssl); -} - - -#if !defined(NO_OLD_TLS) && !defined(WOLFSSL_AEAD_ONLY) -static int SSL_hmac(WOLFSSL* ssl, byte* digest, const byte* in, word32 sz, - int padLen, int content, int verify) -{ - byte result[WC_MAX_DIGEST_SIZE]; - word32 digestSz = ssl->specs.hash_size; /* actual sizes */ - word32 padSz = ssl->specs.pad_size; - int ret = 0; - - wc_Md5 md5; - wc_Sha sha; - - /* data */ - byte seq[SEQ_SZ]; - byte conLen[ENUM_LEN + LENGTH_SZ]; /* content & length */ - const byte* macSecret = wolfSSL_GetMacSecret(ssl, verify); - - (void)padLen; - -#ifdef HAVE_FUZZER - if (ssl->fuzzerCb) - ssl->fuzzerCb(ssl, in, sz, FUZZ_HMAC, ssl->fuzzerCtx); -#endif - - XMEMSET(seq, 0, SEQ_SZ); - conLen[0] = (byte)content; - c16toa((word16)sz, &conLen[ENUM_LEN]); - WriteSEQ(ssl, verify, seq); - - if (ssl->specs.mac_algorithm == md5_mac) { - ret = wc_InitMd5_ex(&md5, ssl->heap, ssl->devId); - if (ret != 0) - return ret; - - /* inner */ - ret = wc_Md5Update(&md5, macSecret, digestSz); - ret |= wc_Md5Update(&md5, PAD1, padSz); - ret |= wc_Md5Update(&md5, seq, SEQ_SZ); - ret |= wc_Md5Update(&md5, conLen, sizeof(conLen)); - /* in buffer */ - ret |= wc_Md5Update(&md5, in, sz); - if (ret != 0) - return VERIFY_MAC_ERROR; - ret = wc_Md5Final(&md5, result); - #ifdef WOLFSSL_ASYNC_CRYPT - /* TODO: Make non-blocking */ - if (ret == WC_PENDING_E) { - ret = wc_AsyncWait(ret, &md5.asyncDev, WC_ASYNC_FLAG_NONE); - } - #endif - if (ret != 0) - return VERIFY_MAC_ERROR; - - /* outer */ - ret = wc_Md5Update(&md5, macSecret, digestSz); - ret |= wc_Md5Update(&md5, PAD2, padSz); - ret |= wc_Md5Update(&md5, result, digestSz); - if (ret != 0) - return VERIFY_MAC_ERROR; - ret = wc_Md5Final(&md5, digest); - #ifdef WOLFSSL_ASYNC_CRYPT - /* TODO: Make non-blocking */ - if (ret == WC_PENDING_E) { - ret = wc_AsyncWait(ret, &md5.asyncDev, WC_ASYNC_FLAG_NONE); - } - #endif - if (ret != 0) - return VERIFY_MAC_ERROR; - - wc_Md5Free(&md5); - } - else { - ret = wc_InitSha_ex(&sha, ssl->heap, ssl->devId); - if (ret != 0) - return ret; - - /* inner */ - ret = wc_ShaUpdate(&sha, macSecret, digestSz); - ret |= wc_ShaUpdate(&sha, PAD1, padSz); - ret |= wc_ShaUpdate(&sha, seq, SEQ_SZ); - ret |= wc_ShaUpdate(&sha, conLen, sizeof(conLen)); - /* in buffer */ - ret |= wc_ShaUpdate(&sha, in, sz); - if (ret != 0) - return VERIFY_MAC_ERROR; - ret = wc_ShaFinal(&sha, result); - #ifdef WOLFSSL_ASYNC_CRYPT - /* TODO: Make non-blocking */ - if (ret == WC_PENDING_E) { - ret = wc_AsyncWait(ret, &sha.asyncDev, WC_ASYNC_FLAG_NONE); - } - #endif - if (ret != 0) - return VERIFY_MAC_ERROR; - - /* outer */ - ret = wc_ShaUpdate(&sha, macSecret, digestSz); - ret |= wc_ShaUpdate(&sha, PAD2, padSz); - ret |= wc_ShaUpdate(&sha, result, digestSz); - if (ret != 0) - return VERIFY_MAC_ERROR; - ret = wc_ShaFinal(&sha, digest); - #ifdef WOLFSSL_ASYNC_CRYPT - /* TODO: Make non-blocking */ - if (ret == WC_PENDING_E) { - ret = wc_AsyncWait(ret, &sha.asyncDev, WC_ASYNC_FLAG_NONE); - } - #endif - if (ret != 0) - return VERIFY_MAC_ERROR; - - wc_ShaFree(&sha); - } - return 0; -} -#endif /* !NO_OLD_TLS && !WOLFSSL_AEAD_ONLY */ - - -#ifndef NO_CERTS - -#if !defined(NO_MD5) && !defined(NO_OLD_TLS) -static int BuildMD5_CertVerify(WOLFSSL* ssl, byte* digest) -{ - int ret; - byte md5_result[WC_MD5_DIGEST_SIZE]; -#ifdef WOLFSSL_SMALL_STACK - wc_Md5* md5 = (wc_Md5*)XMALLOC(sizeof(wc_Md5), ssl->heap, DYNAMIC_TYPE_HASHCTX); -#else - wc_Md5 md5[1]; -#endif - - /* make md5 inner */ - ret = wc_Md5Copy(&ssl->hsHashes->hashMd5, md5); /* Save current position */ - if (ret == 0) - ret = wc_Md5Update(md5, ssl->arrays->masterSecret,SECRET_LEN); - if (ret == 0) - ret = wc_Md5Update(md5, PAD1, PAD_MD5); - if (ret == 0) - ret = wc_Md5Final(md5, md5_result); - - /* make md5 outer */ - if (ret == 0) { - ret = wc_InitMd5_ex(md5, ssl->heap, ssl->devId); - if (ret == 0) { - ret = wc_Md5Update(md5, ssl->arrays->masterSecret, SECRET_LEN); - if (ret == 0) - ret = wc_Md5Update(md5, PAD2, PAD_MD5); - if (ret == 0) - ret = wc_Md5Update(md5, md5_result, WC_MD5_DIGEST_SIZE); - if (ret == 0) - ret = wc_Md5Final(md5, digest); - wc_Md5Free(md5); - } - } - -#ifdef WOLFSSL_SMALL_STACK - XFREE(md5, ssl->heap, DYNAMIC_TYPE_HASHCTX); -#endif - - return ret; -} -#endif /* !NO_MD5 && !NO_OLD_TLS */ - -#if !defined(NO_SHA) && (!defined(NO_OLD_TLS) || \ - defined(WOLFSSL_ALLOW_TLS_SHA1)) -static int BuildSHA_CertVerify(WOLFSSL* ssl, byte* digest) -{ - int ret; - byte sha_result[WC_SHA_DIGEST_SIZE]; -#ifdef WOLFSSL_SMALL_STACK - wc_Sha* sha = (wc_Sha*)XMALLOC(sizeof(wc_Sha), ssl->heap, DYNAMIC_TYPE_HASHCTX); -#else - wc_Sha sha[1]; -#endif - - /* make sha inner */ - ret = wc_ShaCopy(&ssl->hsHashes->hashSha, sha); /* Save current position */ - if (ret == 0) - ret = wc_ShaUpdate(sha, ssl->arrays->masterSecret,SECRET_LEN); - if (ret == 0) - ret = wc_ShaUpdate(sha, PAD1, PAD_SHA); - if (ret == 0) - ret = wc_ShaFinal(sha, sha_result); - - /* make sha outer */ - if (ret == 0) { - ret = wc_InitSha_ex(sha, ssl->heap, ssl->devId); - if (ret == 0) { - ret = wc_ShaUpdate(sha, ssl->arrays->masterSecret,SECRET_LEN); - if (ret == 0) - ret = wc_ShaUpdate(sha, PAD2, PAD_SHA); - if (ret == 0) - ret = wc_ShaUpdate(sha, sha_result, WC_SHA_DIGEST_SIZE); - if (ret == 0) - ret = wc_ShaFinal(sha, digest); - wc_ShaFree(sha); - } - } - -#ifdef WOLFSSL_SMALL_STACK - XFREE(sha, ssl->heap, DYNAMIC_TYPE_HASHCTX); -#endif - - return ret; -} -#endif /* !NO_SHA && (!NO_OLD_TLS || WOLFSSL_ALLOW_TLS_SHA1) */ - -int BuildCertHashes(WOLFSSL* ssl, Hashes* hashes) -{ - int ret = 0; - - (void)hashes; - - if (ssl->options.tls) { - #if !defined(NO_MD5) && !defined(NO_OLD_TLS) - ret = wc_Md5GetHash(&ssl->hsHashes->hashMd5, hashes->md5); - if (ret != 0) - return ret; - #endif - #if !defined(NO_SHA) - ret = wc_ShaGetHash(&ssl->hsHashes->hashSha, hashes->sha); - if (ret != 0) - return ret; - #endif - if (IsAtLeastTLSv1_2(ssl)) { - #ifndef NO_SHA256 - ret = wc_Sha256GetHash(&ssl->hsHashes->hashSha256, - hashes->sha256); - if (ret != 0) - return ret; - #endif - #ifdef WOLFSSL_SHA384 - ret = wc_Sha384GetHash(&ssl->hsHashes->hashSha384, - hashes->sha384); - if (ret != 0) - return ret; - #endif - #ifdef WOLFSSL_SHA512 - ret = wc_Sha512GetHash(&ssl->hsHashes->hashSha512, - hashes->sha512); - if (ret != 0) - return ret; - #endif - } - } - else { - #if !defined(NO_MD5) && !defined(NO_OLD_TLS) - ret = BuildMD5_CertVerify(ssl, hashes->md5); - if (ret != 0) - return ret; - #endif - #if !defined(NO_SHA) && (!defined(NO_OLD_TLS) || \ - defined(WOLFSSL_ALLOW_TLS_SHA1)) - ret = BuildSHA_CertVerify(ssl, hashes->sha); - if (ret != 0) - return ret; - #endif - } - - return ret; -} - -#endif /* !NO_CERTS */ - -#ifndef WOLFSSL_NO_TLS12 -/* Persistable BuildMessage arguments */ -typedef struct BuildMsgArgs { - word32 digestSz; - word32 sz; - word32 pad; - word32 idx; - word32 headerSz; - word16 size; - word32 ivSz; /* TLSv1.1 IV */ - byte* iv; -} BuildMsgArgs; - -static void FreeBuildMsgArgs(WOLFSSL* ssl, void* pArgs) -{ - BuildMsgArgs* args = (BuildMsgArgs*)pArgs; - - (void)ssl; - (void)args; - - if (args->iv) { - XFREE(args->iv, ssl->heap, DYNAMIC_TYPE_SALT); - args->iv = NULL; - } -} -#endif - -/* Build SSL Message, encrypted */ -int BuildMessage(WOLFSSL* ssl, byte* output, int outSz, const byte* input, - int inSz, int type, int hashOutput, int sizeOnly, int asyncOkay) -{ -#ifndef WOLFSSL_NO_TLS12 - int ret = 0; - BuildMsgArgs* args; - BuildMsgArgs lcl_args; -#ifdef WOLFSSL_ASYNC_CRYPT - args = (BuildMsgArgs*)ssl->async.args; - typedef char args_test[sizeof(ssl->async.args) >= sizeof(*args) ? 1 : -1]; - (void)sizeof(args_test); -#endif -#endif - - WOLFSSL_ENTER("BuildMessage"); - - if (ssl == NULL) { - return BAD_FUNC_ARG; - } - -#ifdef WOLFSSL_NO_TLS12 - return BuildTls13Message(ssl, output, outSz, input, inSz, type, - hashOutput, sizeOnly, asyncOkay); -#else -#ifdef WOLFSSL_TLS13 - if (ssl->options.tls1_3) { - return BuildTls13Message(ssl, output, outSz, input, inSz, type, - hashOutput, sizeOnly, asyncOkay); - } -#endif - - ret = WC_NOT_PENDING_E; -#ifdef WOLFSSL_ASYNC_CRYPT - if (asyncOkay) { - ret = wolfSSL_AsyncPop(ssl, &ssl->options.buildMsgState); - if (ret != WC_NOT_PENDING_E) { - /* Check for error */ - if (ret < 0) - goto exit_buildmsg; - } - } - else -#endif - { - args = &lcl_args; - } - - /* Reset state */ - if (ret == WC_NOT_PENDING_E) { - ret = 0; - ssl->options.buildMsgState = BUILD_MSG_BEGIN; - XMEMSET(args, 0, sizeof(BuildMsgArgs)); - - args->sz = RECORD_HEADER_SZ + inSz; - args->idx = RECORD_HEADER_SZ; - args->headerSz = RECORD_HEADER_SZ; - #ifdef WOLFSSL_ASYNC_CRYPT - ssl->async.freeArgs = FreeBuildMsgArgs; - #endif - } - - switch (ssl->options.buildMsgState) { - case BUILD_MSG_BEGIN: - { - /* catch mistaken sizeOnly parameter */ - if (!sizeOnly && (output == NULL || input == NULL) ) { - ERROR_OUT(BAD_FUNC_ARG, exit_buildmsg); - } - if (sizeOnly && (output || input) ) { - WOLFSSL_MSG("BuildMessage w/sizeOnly doesn't need input/output"); - ERROR_OUT(BAD_FUNC_ARG, exit_buildmsg); - } - - ssl->options.buildMsgState = BUILD_MSG_SIZE; - } - FALL_THROUGH; - case BUILD_MSG_SIZE: - { - args->digestSz = ssl->specs.hash_size; - #ifdef HAVE_TRUNCATED_HMAC - if (ssl->truncated_hmac) - args->digestSz = min(TRUNCATED_HMAC_SZ, args->digestSz); - #endif - args->sz += args->digestSz; - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - args->sz += DTLS_RECORD_EXTRA; - args->idx += DTLS_RECORD_EXTRA; - args->headerSz += DTLS_RECORD_EXTRA; - } - #endif - - #ifndef WOLFSSL_AEAD_ONLY - if (ssl->specs.cipher_type == block) { - word32 blockSz = ssl->specs.block_size; - if (ssl->options.tls1_1) { - args->ivSz = blockSz; - args->sz += args->ivSz; - - if (args->ivSz > MAX_IV_SZ) - ERROR_OUT(BUFFER_E, exit_buildmsg); - } - args->sz += 1; /* pad byte */ - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMWrite) { - args->pad = (args->sz - args->headerSz - - args->digestSz) % blockSz; - } - else - #endif - args->pad = (args->sz - args->headerSz) % blockSz; - #ifdef OPENSSL_EXTRA - if(args->pad != 0) - #endif - args->pad = blockSz - args->pad; - args->sz += args->pad; - } - #endif /* WOLFSSL_AEAD_ONLY */ - - #ifdef HAVE_AEAD - if (ssl->specs.cipher_type == aead) { - if (ssl->specs.bulk_cipher_algorithm != wolfssl_chacha) - args->ivSz = AESGCM_EXP_IV_SZ; - - args->sz += (args->ivSz + ssl->specs.aead_mac_size - args->digestSz); - } - #endif - - /* done with size calculations */ - if (sizeOnly) - goto exit_buildmsg; - - if (args->sz > (word32)outSz) { - WOLFSSL_MSG("Oops, want to write past output buffer size"); - ERROR_OUT(BUFFER_E, exit_buildmsg); - } - - if (args->ivSz > 0) { - args->iv = (byte*)XMALLOC(args->ivSz, ssl->heap, DYNAMIC_TYPE_SALT); - if (args->iv == NULL) - ERROR_OUT(MEMORY_E, exit_buildmsg); - - ret = wc_RNG_GenerateBlock(ssl->rng, args->iv, args->ivSz); - if (ret != 0) - goto exit_buildmsg; - - } -#if !defined(NO_PUBLIC_GCM_SET_IV) && \ - ((defined(HAVE_FIPS) || defined(HAVE_SELFTEST)) && \ - (!defined(HAVE_FIPS_VERSION) || (HAVE_FIPS_VERSION < 2)) && \ - defined(HAVE_AEAD)) - if (ssl->specs.cipher_type == aead) { - if (ssl->specs.bulk_cipher_algorithm != wolfssl_chacha) - XMEMCPY(args->iv, ssl->keys.aead_exp_IV, AESGCM_EXP_IV_SZ); - } -#endif - - args->size = (word16)(args->sz - args->headerSz); /* include mac and digest */ - AddRecordHeader(output, args->size, (byte)type, ssl); - - /* write to output */ - if (args->ivSz > 0) { - XMEMCPY(output + args->idx, args->iv, - min(args->ivSz, MAX_IV_SZ)); - args->idx += args->ivSz; - } - XMEMCPY(output + args->idx, input, inSz); - args->idx += inSz; - - ssl->options.buildMsgState = BUILD_MSG_HASH; - } - FALL_THROUGH; - case BUILD_MSG_HASH: - { - if (type == handshake && hashOutput) { - ret = HashOutput(ssl, output, args->headerSz + inSz, args->ivSz); - if (ret != 0) - goto exit_buildmsg; - } - #ifndef WOLFSSL_AEAD_ONLY - if (ssl->specs.cipher_type == block) { - word32 tmpIdx; - word32 i; - - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMWrite) - tmpIdx = args->idx; - else - #endif - tmpIdx = args->idx + args->digestSz; - - for (i = 0; i <= args->pad; i++) - output[tmpIdx++] = (byte)args->pad; /* pad byte gets pad value */ - } - #endif - - ssl->options.buildMsgState = BUILD_MSG_VERIFY_MAC; - } - FALL_THROUGH; - case BUILD_MSG_VERIFY_MAC: - { - /* User Record Layer Callback handling */ - #ifdef ATOMIC_USER - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMWrite) { - if (ssl->ctx->EncryptMacCb) { - ret = ssl->ctx->EncryptMacCb(ssl, output + args->idx + - args->pad + 1, type, 0, - output + args->headerSz, - output + args->headerSz, - args->size - args->digestSz, - ssl->MacEncryptCtx); - goto exit_buildmsg; - } - } - else - #endif - { - if (ssl->ctx->MacEncryptCb) { - ret = ssl->ctx->MacEncryptCb(ssl, output + args->idx, - output + args->headerSz + args->ivSz, inSz, - type, 0, output + args->headerSz, - output + args->headerSz, args->size, - ssl->MacEncryptCtx); - goto exit_buildmsg; - } - } - #endif - - #ifndef WOLFSSL_AEAD_ONLY - if (ssl->specs.cipher_type != aead - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - && !ssl->options.startedETMWrite - #endif - ) { - #ifdef HAVE_TRUNCATED_HMAC - if (ssl->truncated_hmac && - ssl->specs.hash_size > args->digestSz) { - #ifdef WOLFSSL_SMALL_STACK - byte* hmac; - #else - byte hmac[WC_MAX_DIGEST_SIZE]; - #endif - - #ifdef WOLFSSL_SMALL_STACK - hmac = (byte*)XMALLOC(WC_MAX_DIGEST_SIZE, ssl->heap, - DYNAMIC_TYPE_DIGEST); - if (hmac == NULL) - ERROR_OUT(MEMORY_E, exit_buildmsg); - #endif - - ret = ssl->hmac(ssl, hmac, - output + args->headerSz + args->ivSz, inSz, - -1, type, 0); - XMEMCPY(output + args->idx, hmac, args->digestSz); - - #ifdef WOLFSSL_SMALL_STACK - XFREE(hmac, ssl->heap, DYNAMIC_TYPE_DIGEST); - #endif - } - else - #endif - { - ret = ssl->hmac(ssl, output + args->idx, output + - args->headerSz + args->ivSz, inSz, -1, type, 0); - } - } - #endif /* WOLFSSL_AEAD_ONLY */ - if (ret != 0) - goto exit_buildmsg; - - ssl->options.buildMsgState = BUILD_MSG_ENCRYPT; - } - FALL_THROUGH; - case BUILD_MSG_ENCRYPT: - { - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMWrite) { - ret = Encrypt(ssl, output + args->headerSz, - output + args->headerSz, - args->size - args->digestSz, asyncOkay); - } - else - #endif - { - ret = Encrypt(ssl, output + args->headerSz, - output + args->headerSz, args->size, asyncOkay); - } - if (ret != 0) - goto exit_buildmsg; - ssl->options.buildMsgState = BUILD_MSG_ENCRYPTED_VERIFY_MAC; - } - FALL_THROUGH; - case BUILD_MSG_ENCRYPTED_VERIFY_MAC: - { - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMWrite) { - WOLFSSL_MSG("Calculate MAC of Encrypted Data"); - - #ifdef HAVE_TRUNCATED_HMAC - if (ssl->truncated_hmac && - ssl->specs.hash_size > args->digestSz) { - #ifdef WOLFSSL_SMALL_STACK - byte* hmac = NULL; - #else - byte hmac[WC_MAX_DIGEST_SIZE]; - #endif - - #ifdef WOLFSSL_SMALL_STACK - hmac = (byte*)XMALLOC(WC_MAX_DIGEST_SIZE, ssl->heap, - DYNAMIC_TYPE_DIGEST); - if (hmac == NULL) - ERROR_OUT(MEMORY_E, exit_buildmsg); - #endif - - ret = ssl->hmac(ssl, hmac, output + args->headerSz, - args->ivSz + inSz + args->pad + 1, -1, type, - 0); - XMEMCPY(output + args->idx + args->pad + 1, hmac, - args->digestSz); - - #ifdef WOLFSSL_SMALL_STACK - XFREE(hmac, ssl->heap, DYNAMIC_TYPE_DIGEST); - #endif - } - else - #endif - { - ret = ssl->hmac(ssl, output + args->idx + args->pad + 1, - output + args->headerSz, - args->ivSz + inSz + args->pad + 1, -1, type, - 0); - } - } - #endif /* HAVE_ENCRYPT_THEN_MAC && !WOLFSSL_AEAD_ONLY */ - } - } - -exit_buildmsg: - - WOLFSSL_LEAVE("BuildMessage", ret); - -#ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) { - return ret; - } -#endif - - /* make sure build message state is reset */ - ssl->options.buildMsgState = BUILD_MSG_BEGIN; - - #ifdef WOLFSSL_DTLS - if (ret == 0 && ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - #endif - - /* return sz on success */ - if (ret == 0) - ret = args->sz; - - /* Final cleanup */ - FreeBuildMsgArgs(ssl, args); -#ifdef WOLFSSL_ASYNC_CRYPT - ssl->async.freeArgs = NULL; -#endif - - return ret; -#endif /* !WOLFSSL_NO_TLS12 */ -} - -#ifndef WOLFSSL_NO_TLS12 - -int SendFinished(WOLFSSL* ssl) -{ - int sendSz, - finishedSz = ssl->options.tls ? TLS_FINISHED_SZ : - FINISHED_SZ; - byte input[FINISHED_SZ + DTLS_HANDSHAKE_HEADER_SZ]; /* max */ - byte *output; - Hashes* hashes; - int ret; - int headerSz = HANDSHAKE_HEADER_SZ; - int outputSz; - - WOLFSSL_START(WC_FUNC_FINISHED_SEND); - WOLFSSL_ENTER("SendFinished"); - - /* setup encrypt keys */ - if ((ret = SetKeysSide(ssl, ENCRYPT_SIDE_ONLY)) != 0) - return ret; - - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - ssl->options.startedETMWrite = ssl->options.encThenMac; - #endif - - /* check for available size */ - outputSz = sizeof(input) + MAX_MSG_EXTRA; - if ((ret = CheckAvailableSize(ssl, outputSz)) != 0) - return ret; - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - headerSz += DTLS_HANDSHAKE_EXTRA; - ssl->keys.dtls_epoch++; - ssl->keys.dtls_prev_sequence_number_hi = - ssl->keys.dtls_sequence_number_hi; - ssl->keys.dtls_prev_sequence_number_lo = - ssl->keys.dtls_sequence_number_lo; - ssl->keys.dtls_sequence_number_hi = 0; - ssl->keys.dtls_sequence_number_lo = 0; - } - #endif - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHandShakeHeader(input, finishedSz, 0, finishedSz, finished, ssl); - - /* make finished hashes */ - hashes = (Hashes*)&input[headerSz]; - ret = BuildFinished(ssl, hashes, - ssl->options.side == WOLFSSL_CLIENT_END ? client : server); - if (ret != 0) return ret; - -#ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->secure_renegotiation) { - if (ssl->options.side == WOLFSSL_CLIENT_END) - XMEMCPY(ssl->secure_renegotiation->client_verify_data, hashes, - TLS_FINISHED_SZ); - else - XMEMCPY(ssl->secure_renegotiation->server_verify_data, hashes, - TLS_FINISHED_SZ); - } -#endif - - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - if ((ret = DtlsMsgPoolSave(ssl, input, headerSz + finishedSz)) != 0) - return ret; - } - #endif - - sendSz = BuildMessage(ssl, output, outputSz, input, headerSz + finishedSz, - handshake, 1, 0, 0); - if (sendSz < 0) - return BUILD_MSG_ERROR; - - if (!ssl->options.resuming) { -#ifndef NO_SESSION_CACHE - AddSession(ssl); /* just try */ -#endif - if (ssl->options.side == WOLFSSL_SERVER_END) { - #ifdef OPENSSL_EXTRA - ssl->options.serverState = SERVER_FINISHED_COMPLETE; - ssl->cbmode = SSL_CB_MODE_WRITE; - if (ssl->CBIS != NULL) - ssl->CBIS(ssl, SSL_CB_HANDSHAKE_DONE, SSL_SUCCESS); - #endif - ssl->options.handShakeState = HANDSHAKE_DONE; - ssl->options.handShakeDone = 1; - } - } - else { - if (ssl->options.side == WOLFSSL_CLIENT_END) { - #ifdef OPENSSL_EXTRA - ssl->options.clientState = CLIENT_FINISHED_COMPLETE; - ssl->cbmode = SSL_CB_MODE_WRITE; - if (ssl->CBIS != NULL) - ssl->CBIS(ssl, SSL_CB_HANDSHAKE_DONE, SSL_SUCCESS); - #endif - ssl->options.handShakeState = HANDSHAKE_DONE; - ssl->options.handShakeDone = 1; - } - } - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) AddPacketName(ssl, "Finished"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "Finished", handshake, output, sendSz, - WRITE_PROTO, ssl->heap); - #endif - - ssl->buffers.outputBuffer.length += sendSz; - - ret = SendBuffered(ssl); - - WOLFSSL_LEAVE("SendFinished", ret); - WOLFSSL_END(WC_FUNC_FINISHED_SEND); - - return ret; -} -#endif /* WOLFSSL_NO_TLS12 */ - -#ifndef NO_WOLFSSL_SERVER -#if (!defined(WOLFSSL_NO_TLS12) && \ - (defined(HAVE_CERTIFICATE_STATUS_REQUEST) || \ - defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2))) || \ - (defined(WOLFSSL_TLS13) && defined(HAVE_CERTIFICATE_STATUS_REQUEST)) -/* Parses and decodes the certificate then initializes "request". In the case - * of !ssl->buffers.weOwnCert, ssl->ctx->certOcspRequest gets set to "request". - * - * Returns 0 on success - */ -static int CreateOcspRequest(WOLFSSL* ssl, OcspRequest* request, - DecodedCert* cert, byte* certData, word32 length) -{ - int ret; - - if (request != NULL) - XMEMSET(request, 0, sizeof(OcspRequest)); - - InitDecodedCert(cert, certData, length, ssl->heap); - /* TODO: Setup async support here */ - ret = ParseCertRelative(cert, CERT_TYPE, VERIFY, ssl->ctx->cm); - if (ret != 0) { - WOLFSSL_MSG("ParseCert failed"); - } - if (ret == 0) - ret = InitOcspRequest(request, cert, 0, ssl->heap); - if (ret == 0) { - /* make sure ctx OCSP request is updated */ - if (!ssl->buffers.weOwnCert) { - wolfSSL_Mutex* ocspLock = &ssl->ctx->cm->ocsp_stapling->ocspLock; - if (wc_LockMutex(ocspLock) == 0) { - if (ssl->ctx->certOcspRequest == NULL) - ssl->ctx->certOcspRequest = request; - wc_UnLockMutex(ocspLock); - } - } - } - - FreeDecodedCert(cert); - - return ret; -} - - -/* Creates OCSP response and places it in variable "response". Memory - * management for "buffer* response" is up to the caller. - * - * Also creates an OcspRequest in the case that ocspRequest is null or that - * ssl->buffers.weOwnCert is set. In those cases managing ocspRequest free'ing - * is up to the caller. NOTE: in OcspCreateRequest ssl->ctx->certOcspRequest can - * be set to point to "ocspRequest" and it then should not be free'd since - * wolfSSL_CTX_free will take care of it. - * - * Returns 0 on success - */ -int CreateOcspResponse(WOLFSSL* ssl, OcspRequest** ocspRequest, - buffer* response) -{ - int ret = 0; - OcspRequest* request = NULL; - byte createdRequest = 0; - - if (ssl == NULL || ocspRequest == NULL || response == NULL) - return BAD_FUNC_ARG; - - XMEMSET(response, 0, sizeof(*response)); - request = *ocspRequest; - - /* unable to fetch status. skip. */ - if (ssl->ctx->cm == NULL || ssl->ctx->cm->ocspStaplingEnabled == 0) - return 0; - - if (request == NULL || ssl->buffers.weOwnCert) { - DerBuffer* der = ssl->buffers.certificate; - #ifdef WOLFSSL_SMALL_STACK - DecodedCert* cert = NULL; - #else - DecodedCert cert[1]; - #endif - - /* unable to fetch status. skip. */ - if (der->buffer == NULL || der->length == 0) - return 0; - - #ifdef WOLFSSL_SMALL_STACK - cert = (DecodedCert*)XMALLOC(sizeof(DecodedCert), ssl->heap, - DYNAMIC_TYPE_DCERT); - if (cert == NULL) - return MEMORY_E; - #endif - request = (OcspRequest*)XMALLOC(sizeof(OcspRequest), ssl->heap, - DYNAMIC_TYPE_OCSP_REQUEST); - if (request == NULL) - ret = MEMORY_E; - - createdRequest = 1; - if (ret == 0) { - ret = CreateOcspRequest(ssl, request, cert, der->buffer, - der->length); - } - - if (ret != 0) { - XFREE(request, ssl->heap, DYNAMIC_TYPE_OCSP_REQUEST); - request = NULL; - } - - #ifdef WOLFSSL_SMALL_STACK - XFREE(cert, ssl->heap, DYNAMIC_TYPE_DCERT); - #endif - } - - if (ret == 0) { - request->ssl = ssl; - ret = CheckOcspRequest(ssl->ctx->cm->ocsp_stapling, request, response); - - /* Suppressing, not critical */ - if (ret == OCSP_CERT_REVOKED || - ret == OCSP_CERT_UNKNOWN || - ret == OCSP_LOOKUP_FAIL) { - ret = 0; - } - } - - /* free request up if error case found otherwise return it */ - if (ret != 0 && createdRequest) { - FreeOcspRequest(request); - XFREE(request, ssl->heap, DYNAMIC_TYPE_OCSP_REQUEST); - } - - if (ret == 0) - *ocspRequest = request; - - return ret; -} -#endif -#endif /* !NO_WOLFSSL_SERVER */ - -#ifndef WOLFSSL_NO_TLS12 - -#ifndef NO_CERTS -#if !defined(NO_WOLFSSL_SERVER) || !defined(WOLFSSL_NO_CLIENT_AUTH) -/* handle generation of certificate (11) */ -int SendCertificate(WOLFSSL* ssl) -{ - int ret = 0; - word32 certSz, certChainSz, headerSz, listSz, payloadSz; - word32 length, maxFragment; - - WOLFSSL_START(WC_FUNC_CERTIFICATE_SEND); - WOLFSSL_ENTER("SendCertificate"); - - if (ssl->options.usingPSK_cipher || ssl->options.usingAnon_cipher) - return 0; /* not needed */ - - if (ssl->options.sendVerify == SEND_BLANK_CERT) { - #ifdef OPENSSL_EXTRA - if (ssl->version.major == SSLv3_MAJOR - && ssl->version.minor == SSLv3_MINOR){ - SendAlert(ssl, alert_warning, no_certificate); - return 0; - } else { - #endif - certSz = 0; - certChainSz = 0; - headerSz = CERT_HEADER_SZ; - length = CERT_HEADER_SZ; - listSz = 0; - #ifdef OPENSSL_EXTRA - } - #endif - } - else { - if (!ssl->buffers.certificate) { - WOLFSSL_MSG("Send Cert missing certificate buffer"); - return BUFFER_ERROR; - } - certSz = ssl->buffers.certificate->length; - headerSz = 2 * CERT_HEADER_SZ; - /* list + cert size */ - length = certSz + headerSz; - listSz = certSz + CERT_HEADER_SZ; - - /* may need to send rest of chain, already has leading size(s) */ - if (certSz && ssl->buffers.certChain) { - certChainSz = ssl->buffers.certChain->length; - length += certChainSz; - listSz += certChainSz; - } - else - certChainSz = 0; - } - - payloadSz = length; - - if (ssl->fragOffset != 0) - length -= (ssl->fragOffset + headerSz); - - maxFragment = MAX_RECORD_SIZE; - - if (ssl->options.dtls) { - #ifdef WOLFSSL_DTLS - /* The 100 bytes is used to account for the UDP and IP headers. - It can also include the record padding and MAC if the - SendCertificate is called for a secure renegotiation. */ - maxFragment = MAX_MTU - DTLS_RECORD_HEADER_SZ - - DTLS_HANDSHAKE_HEADER_SZ - 100; - #endif /* WOLFSSL_DTLS */ - } - - maxFragment = wolfSSL_GetMaxRecordSize(ssl, maxFragment); - - while (length > 0 && ret == 0) { - byte* output = NULL; - word32 fragSz = 0; - word32 i = RECORD_HEADER_SZ; - int sendSz = RECORD_HEADER_SZ; - - if (!ssl->options.dtls) { - if (ssl->fragOffset == 0) { - if (headerSz + certSz + certChainSz <= - maxFragment - HANDSHAKE_HEADER_SZ) { - - fragSz = headerSz + certSz + certChainSz; - } - else { - fragSz = maxFragment - HANDSHAKE_HEADER_SZ; - } - sendSz += fragSz + HANDSHAKE_HEADER_SZ; - i += HANDSHAKE_HEADER_SZ; - } - else { - fragSz = min(length, maxFragment); - sendSz += fragSz; - } - - if (IsEncryptionOn(ssl, 1)) - sendSz += MAX_MSG_EXTRA; - } - else { - #ifdef WOLFSSL_DTLS - fragSz = min(length, maxFragment); - sendSz += fragSz + DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA - + HANDSHAKE_HEADER_SZ; - i += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA - + HANDSHAKE_HEADER_SZ; - #endif - } - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) - return ret; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - if (ssl->fragOffset == 0) { - if (!ssl->options.dtls) { - AddFragHeaders(output, fragSz, 0, payloadSz, certificate, ssl); - if (!IsEncryptionOn(ssl, 1)) - HashOutputRaw(ssl, output + RECORD_HEADER_SZ, - HANDSHAKE_HEADER_SZ); - } - else { - #ifdef WOLFSSL_DTLS - AddHeaders(output, payloadSz, certificate, ssl); - if (!IsEncryptionOn(ssl, 1)) - HashOutputRaw(ssl, - output + RECORD_HEADER_SZ + DTLS_RECORD_EXTRA, - HANDSHAKE_HEADER_SZ + DTLS_HANDSHAKE_EXTRA); - /* Adding the headers increments these, decrement them for - * actual message header. */ - ssl->keys.dtls_handshake_number--; - AddFragHeaders(output, fragSz, 0, payloadSz, certificate, ssl); - ssl->keys.dtls_handshake_number--; - #endif /* WOLFSSL_DTLS */ - } - - /* list total */ - c32to24(listSz, output + i); - if (!IsEncryptionOn(ssl, 1)) - HashOutputRaw(ssl, output + i, CERT_HEADER_SZ); - i += CERT_HEADER_SZ; - length -= CERT_HEADER_SZ; - fragSz -= CERT_HEADER_SZ; - if (certSz) { - c32to24(certSz, output + i); - if (!IsEncryptionOn(ssl, 1)) - HashOutputRaw(ssl, output + i, CERT_HEADER_SZ); - i += CERT_HEADER_SZ; - length -= CERT_HEADER_SZ; - fragSz -= CERT_HEADER_SZ; - - if (!IsEncryptionOn(ssl, 1)) { - HashOutputRaw(ssl, ssl->buffers.certificate->buffer, certSz); - if (certChainSz) - HashOutputRaw(ssl, ssl->buffers.certChain->buffer, - certChainSz); - } - } - } - else { - if (!ssl->options.dtls) { - AddRecordHeader(output, fragSz, handshake, ssl); - } - else { - #ifdef WOLFSSL_DTLS - AddFragHeaders(output, fragSz, ssl->fragOffset + headerSz, - payloadSz, certificate, ssl); - ssl->keys.dtls_handshake_number--; - #endif /* WOLFSSL_DTLS */ - } - } - - /* member */ - if (certSz && ssl->fragOffset < certSz) { - word32 copySz = min(certSz - ssl->fragOffset, fragSz); - XMEMCPY(output + i, - ssl->buffers.certificate->buffer + ssl->fragOffset, copySz); - i += copySz; - ssl->fragOffset += copySz; - length -= copySz; - fragSz -= copySz; - } - if (certChainSz && fragSz) { - word32 copySz = min(certChainSz + certSz - ssl->fragOffset, fragSz); - XMEMCPY(output + i, - ssl->buffers.certChain->buffer + ssl->fragOffset - certSz, - copySz); - i += copySz; - ssl->fragOffset += copySz; - length -= copySz; - } - - if (IsEncryptionOn(ssl, 1)) { - byte* input = NULL; - int inputSz = i - RECORD_HEADER_SZ; /* build msg adds rec hdr */ - - if (inputSz < 0) { - WOLFSSL_MSG("Send Cert bad inputSz"); - return BUFFER_E; - } - - if (inputSz > 0) { /* clang thinks could be zero, let's help */ - input = (byte*)XMALLOC(inputSz, ssl->heap, - DYNAMIC_TYPE_IN_BUFFER); - if (input == NULL) - return MEMORY_E; - XMEMCPY(input, output + RECORD_HEADER_SZ, inputSz); - } - - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - handshake, 1, 0, 0); - - if (inputSz > 0) - XFREE(input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - - if (sendSz < 0) - return sendSz; - } - else { - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - #endif - } - - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - if ((ret = DtlsMsgPoolSave(ssl, output, sendSz)) != 0) - return ret; - } - #endif - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "Certificate"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "Certificate", handshake, output, sendSz, - WRITE_PROTO, ssl->heap); - #endif - - ssl->buffers.outputBuffer.length += sendSz; - if (!ssl->options.groupMessages) - ret = SendBuffered(ssl); - } - - if (ret != WANT_WRITE) { - /* Clean up the fragment offset. */ - ssl->fragOffset = 0; - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - ssl->keys.dtls_handshake_number++; - #endif - if (ssl->options.side == WOLFSSL_SERVER_END){ - ssl->options.serverState = SERVER_CERT_COMPLETE; - } - } - - WOLFSSL_LEAVE("SendCertificate", ret); - WOLFSSL_END(WC_FUNC_CERTIFICATE_SEND); - - return ret; -} -#endif /* !NO_WOLFSSL_SERVER || !WOLFSSL_NO_CLIENT_AUTH */ - -/* handle generation of certificate_request (13) */ -int SendCertificateRequest(WOLFSSL* ssl) -{ - byte *output; - int ret; - int sendSz; - word32 i = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - word32 dnLen = 0; -#if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) - WOLF_STACK_OF(WOLFSSL_X509_NAME)* names; -#endif - - int typeTotal = 1; /* only 1 for now */ - int reqSz = ENUM_LEN + typeTotal + REQ_HEADER_SZ; /* add auth later */ - - WOLFSSL_START(WC_FUNC_CERTIFICATE_REQUEST_SEND); - WOLFSSL_ENTER("SendCertificateRequest"); - - if (IsAtLeastTLSv1_2(ssl)) - reqSz += LENGTH_SZ + ssl->suites->hashSigAlgoSz; - -#if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) - /* Certificate Authorities */ - names = ssl->ctx->ca_names; - while (names != NULL) { - byte seq[MAX_SEQ_SZ]; - - /* 16-bit length | SEQ | Len | DER of name */ - dnLen += OPAQUE16_LEN + SetSequence(names->data.name->rawLen, seq) + - names->data.name->rawLen; - names = names->next; - } - reqSz += dnLen; -#endif - - if (ssl->options.usingPSK_cipher || ssl->options.usingAnon_cipher) - return 0; /* not needed */ - - sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ + reqSz; - - if (!ssl->options.dtls) { - if (IsEncryptionOn(ssl, 1)) - sendSz += MAX_MSG_EXTRA; - } - else { - #ifdef WOLFSSL_DTLS - sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - i += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - #endif - } - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) - return ret; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(output, reqSz, certificate_request, ssl); - - /* write to output */ - output[i++] = (byte)typeTotal; /* # of types */ -#ifdef HAVE_ECC - if ((ssl->options.cipherSuite0 == ECC_BYTE || - ssl->options.cipherSuite0 == CHACHA_BYTE) && - ssl->specs.sig_algo == ecc_dsa_sa_algo) { - output[i++] = ecdsa_sign; - } else -#endif /* HAVE_ECC */ - { - output[i++] = rsa_sign; - } - - /* supported hash/sig */ - if (IsAtLeastTLSv1_2(ssl)) { - c16toa(ssl->suites->hashSigAlgoSz, &output[i]); - i += OPAQUE16_LEN; - - XMEMCPY(&output[i], - ssl->suites->hashSigAlgo, ssl->suites->hashSigAlgoSz); - i += ssl->suites->hashSigAlgoSz; - } - - /* Certificate Authorities */ - c16toa((word16)dnLen, &output[i]); /* auth's */ - i += REQ_HEADER_SZ; -#if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) - names = ssl->ctx->ca_names; - while (names != NULL) { - byte seq[MAX_SEQ_SZ]; - - c16toa((word16)names->data.name->rawLen + - SetSequence(names->data.name->rawLen, seq), &output[i]); - i += OPAQUE16_LEN; - i += SetSequence(names->data.name->rawLen, output + i); - XMEMCPY(output + i, names->data.name->raw, names->data.name->rawLen); - i += names->data.name->rawLen; - names = names->next; - } -#endif - (void)i; - - if (IsEncryptionOn(ssl, 1)) { - byte* input; - int inputSz = i - RECORD_HEADER_SZ; /* build msg adds rec hdr */ - - input = (byte*)XMALLOC(inputSz, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - if (input == NULL) - return MEMORY_E; - - XMEMCPY(input, output + RECORD_HEADER_SZ, inputSz); - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - handshake, 1, 0, 0); - XFREE(input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - - if (sendSz < 0) - return sendSz; - } else { - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - if (IsDtlsNotSctpMode(ssl)) { - if ((ret = DtlsMsgPoolSave(ssl, output, sendSz)) != 0) - return ret; - } - #endif - ret = HashOutput(ssl, output, sendSz, 0); - if (ret != 0) - return ret; - } - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "CertificateRequest"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "CertificateRequest", handshake, output, sendSz, - WRITE_PROTO, ssl->heap); - #endif - ssl->buffers.outputBuffer.length += sendSz; - if (ssl->options.groupMessages) - ret = 0; - else - ret = SendBuffered(ssl); - - WOLFSSL_LEAVE("SendCertificateRequest", ret); - WOLFSSL_END(WC_FUNC_CERTIFICATE_REQUEST_SEND); - - return ret; -} - -#ifndef NO_WOLFSSL_SERVER -#if defined(HAVE_CERTIFICATE_STATUS_REQUEST) \ - || defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2) -static int BuildCertificateStatus(WOLFSSL* ssl, byte type, buffer* status, - byte count) -{ - byte* output = NULL; - word32 idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - word32 length = ENUM_LEN; - int sendSz = 0; - int ret = 0; - int i = 0; - - WOLFSSL_ENTER("BuildCertificateStatus"); - - switch (type) { - case WOLFSSL_CSR2_OCSP_MULTI: - length += OPAQUE24_LEN; - FALL_THROUGH; /* followed by */ - - case WOLFSSL_CSR2_OCSP: - for (i = 0; i < count; i++) - length += OPAQUE24_LEN + status[i].length; - break; - - default: - return 0; - } - - sendSz = idx + length; - - if (ssl->keys.encryptionOn) - sendSz += MAX_MSG_EXTRA; - - if ((ret = CheckAvailableSize(ssl, sendSz)) == 0) { - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(output, length, certificate_status, ssl); - - output[idx++] = type; - - if (type == WOLFSSL_CSR2_OCSP_MULTI) { - c32to24(length - (ENUM_LEN + OPAQUE24_LEN), output + idx); - idx += OPAQUE24_LEN; - } - - for (i = 0; i < count; i++) { - c32to24(status[i].length, output + idx); - idx += OPAQUE24_LEN; - - XMEMCPY(output + idx, status[i].buffer, status[i].length); - idx += status[i].length; - } - - if (IsEncryptionOn(ssl, 1)) { - byte* input; - int inputSz = idx - RECORD_HEADER_SZ; - - input = (byte*)XMALLOC(inputSz, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - if (input == NULL) - return MEMORY_E; - - XMEMCPY(input, output + RECORD_HEADER_SZ, inputSz); - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - handshake, 1, 0, 0); - XFREE(input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - - if (sendSz < 0) - ret = sendSz; - } - else { - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - #endif - ret = HashOutput(ssl, output, sendSz, 0); - } - - #ifdef WOLFSSL_DTLS - if (ret == 0 && IsDtlsNotSctpMode(ssl)) - ret = DtlsMsgPoolSave(ssl, output, sendSz); - #endif - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ret == 0 && ssl->hsInfoOn) - AddPacketName(ssl, "CertificateStatus"); - if (ret == 0 && ssl->toInfoOn) - AddPacketInfo(ssl, "CertificateStatus", handshake, output, sendSz, - WRITE_PROTO, ssl->heap); - #endif - - if (ret == 0) { - ssl->buffers.outputBuffer.length += sendSz; - if (!ssl->options.groupMessages) - ret = SendBuffered(ssl); - } - } - - WOLFSSL_LEAVE("BuildCertificateStatus", ret); - return ret; -} -#endif -#endif /* NO_WOLFSSL_SERVER */ - -/* handle generation of certificate_status (22) */ -int SendCertificateStatus(WOLFSSL* ssl) -{ - int ret = 0; - byte status_type = 0; - - WOLFSSL_START(WC_FUNC_CERTIFICATE_STATUS_SEND); - WOLFSSL_ENTER("SendCertificateStatus"); - - (void) ssl; - -#ifdef HAVE_CERTIFICATE_STATUS_REQUEST - status_type = ssl->status_request; -#endif - -#ifdef HAVE_CERTIFICATE_STATUS_REQUEST_V2 - status_type = status_type ? status_type : ssl->status_request_v2; -#endif - - switch (status_type) { - - #ifndef NO_WOLFSSL_SERVER - #if defined(HAVE_CERTIFICATE_STATUS_REQUEST) \ - || defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2) - /* case WOLFSSL_CSR_OCSP: */ - case WOLFSSL_CSR2_OCSP: - { - OcspRequest* request = ssl->ctx->certOcspRequest; - buffer response; - - ret = CreateOcspResponse(ssl, &request, &response); - - /* if a request was successfully created and not stored in - * ssl->ctx then free it */ - if (ret == 0 && request != ssl->ctx->certOcspRequest) { - FreeOcspRequest(request); - XFREE(request, ssl->heap, DYNAMIC_TYPE_OCSP_REQUEST); - request = NULL; - } - - if (ret == 0 && response.buffer) { - ret = BuildCertificateStatus(ssl, status_type, &response, 1); - - XFREE(response.buffer, ssl->heap, DYNAMIC_TYPE_OCSP_REQUEST); - response.buffer = NULL; - } - break; - } - - #endif /* HAVE_CERTIFICATE_STATUS_REQUEST */ - /* HAVE_CERTIFICATE_STATUS_REQUEST_V2 */ - - #if defined HAVE_CERTIFICATE_STATUS_REQUEST_V2 - case WOLFSSL_CSR2_OCSP_MULTI: - { - OcspRequest* request = ssl->ctx->certOcspRequest; - buffer responses[1 + MAX_CHAIN_DEPTH]; - int i = 0; - - XMEMSET(responses, 0, sizeof(responses)); - - ret = CreateOcspResponse(ssl, &request, &responses[0]); - - /* if a request was successfully created and not stored in - * ssl->ctx then free it */ - if (ret == 0 && request != ssl->ctx->certOcspRequest) { - FreeOcspRequest(request); - XFREE(request, ssl->heap, DYNAMIC_TYPE_OCSP_REQUEST); - request = NULL; - } - - if (ret == 0 && (!ssl->ctx->chainOcspRequest[0] - || ssl->buffers.weOwnCertChain)) { - buffer der; - word32 idx = 0; - #ifdef WOLFSSL_SMALL_STACK - DecodedCert* cert; - #else - DecodedCert cert[1]; - #endif - - #ifdef WOLFSSL_SMALL_STACK - cert = (DecodedCert*)XMALLOC(sizeof(DecodedCert), ssl->heap, - DYNAMIC_TYPE_DCERT); - if (cert == NULL) - return MEMORY_E; - #endif - request = (OcspRequest*)XMALLOC(sizeof(OcspRequest), ssl->heap, - DYNAMIC_TYPE_OCSP_REQUEST); - if (request == NULL) { - #ifdef WOLFSSL_SMALL_STACK - XFREE(cert, ssl->heap, DYNAMIC_TYPE_DCERT); - #endif - return MEMORY_E; - } - - while (idx + OPAQUE24_LEN < ssl->buffers.certChain->length) { - c24to32(ssl->buffers.certChain->buffer + idx, &der.length); - idx += OPAQUE24_LEN; - - der.buffer = ssl->buffers.certChain->buffer + idx; - idx += der.length; - - if (idx > ssl->buffers.certChain->length) - break; - - ret = CreateOcspRequest(ssl, request, cert, der.buffer, - der.length); - if (ret == 0) { - request->ssl = ssl; - ret = CheckOcspRequest(ssl->ctx->cm->ocsp_stapling, - request, &responses[i + 1]); - - /* Suppressing, not critical */ - if (ret == OCSP_CERT_REVOKED || - ret == OCSP_CERT_UNKNOWN || - ret == OCSP_LOOKUP_FAIL) { - ret = 0; - } - - - i++; - FreeOcspRequest(request); - } - } - - XFREE(request, ssl->heap, DYNAMIC_TYPE_OCSP_REQUEST); - #ifdef WOLFSSL_SMALL_STACK - XFREE(cert, ssl->heap, DYNAMIC_TYPE_DCERT); - #endif - } - else { - while (ret == 0 && - NULL != (request = ssl->ctx->chainOcspRequest[i])) { - request->ssl = ssl; - ret = CheckOcspRequest(ssl->ctx->cm->ocsp_stapling, - request, &responses[++i]); - - /* Suppressing, not critical */ - if (ret == OCSP_CERT_REVOKED || - ret == OCSP_CERT_UNKNOWN || - ret == OCSP_LOOKUP_FAIL) { - ret = 0; - } - } - } - - if (responses[0].buffer) { - if (ret == 0) { - ret = BuildCertificateStatus(ssl, status_type, responses, - (byte)i + 1); - } - - for (i = 0; i < 1 + MAX_CHAIN_DEPTH; i++) { - if (responses[i].buffer) { - XFREE(responses[i].buffer, ssl->heap, - DYNAMIC_TYPE_OCSP_REQUEST); - } - } - } - - break; - } - #endif /* HAVE_CERTIFICATE_STATUS_REQUEST_V2 */ - #endif /* NO_WOLFSSL_SERVER */ - - default: - break; - } - - WOLFSSL_LEAVE("SendCertificateStatus", ret); - WOLFSSL_END(WC_FUNC_CERTIFICATE_STATUS_SEND); - - return ret; -} - -#endif /* !NO_CERTS */ - -#endif /* WOLFSSL_NO_TLS12 */ - - -/* If secure renegotiation is disabled, this will always return false. - * Otherwise it checks to see if we are currently renegotiating. */ -static WC_INLINE int IsSCR(WOLFSSL* ssl) -{ -#ifndef HAVE_SECURE_RENEGOTIATION - (void)ssl; -#else /* HAVE_SECURE_RENEGOTIATION */ - if (ssl->secure_renegotiation && - ssl->secure_renegotiation->enabled && - ssl->options.handShakeState != HANDSHAKE_DONE) - return 1; -#endif /* HAVE_SECURE_RENEGOTIATION */ - return 0; -} - - -int SendData(WOLFSSL* ssl, const void* data, int sz) -{ - int sent = 0, /* plainText size */ - sendSz, - ret, - dtlsExtra = 0; - int groupMsgs = 0; - - if (ssl->error == WANT_WRITE - #ifdef WOLFSSL_ASYNC_CRYPT - || ssl->error == WC_PENDING_E - #endif - ) { - ssl->error = 0; - } - - /* don't allow write after decrypt or mac error */ - if (ssl->error == VERIFY_MAC_ERROR || ssl->error == DECRYPT_ERROR) { - /* For DTLS allow these possible errors and allow the session - to continue despite them */ - if (ssl->options.dtls) { - ssl->error = 0; - } - else { - WOLFSSL_MSG("Not allowing write after decrypt or mac error"); - return WOLFSSL_FATAL_ERROR; - } - } - -#ifdef WOLFSSL_EARLY_DATA - if (ssl->earlyData != no_early_data) { - if (ssl->options.handShakeState == HANDSHAKE_DONE) { - WOLFSSL_MSG("handshake complete, trying to send early data"); - return BUILD_MSG_ERROR; - } - #ifdef WOLFSSL_EARLY_DATA_GROUP - groupMsgs = 1; - #endif - } - else -#endif - if (ssl->options.handShakeState != HANDSHAKE_DONE && !IsSCR(ssl)) { - int err; - WOLFSSL_MSG("handshake not complete, trying to finish"); - if ( (err = wolfSSL_negotiate(ssl)) != WOLFSSL_SUCCESS) { - #ifdef WOLFSSL_ASYNC_CRYPT - /* if async would block return WANT_WRITE */ - if (ssl->error == WC_PENDING_E) { - return WOLFSSL_CBIO_ERR_WANT_WRITE; - } - #endif - return err; - } - } - - /* last time system socket output buffer was full, try again to send */ - if (!groupMsgs && ssl->buffers.outputBuffer.length > 0) { - WOLFSSL_MSG("output buffer was full, trying to send again"); - if ( (ssl->error = SendBuffered(ssl)) < 0) { - WOLFSSL_ERROR(ssl->error); - if (ssl->error == SOCKET_ERROR_E && (ssl->options.connReset || - ssl->options.isClosed)) { - ssl->error = SOCKET_PEER_CLOSED_E; - WOLFSSL_ERROR(ssl->error); - return 0; /* peer reset or closed */ - } - return ssl->error; - } - else { - /* advance sent to previous sent + plain size just sent */ - sent = ssl->buffers.prevSent + ssl->buffers.plainSz; - WOLFSSL_MSG("sent write buffered data"); - - if (sent > sz) { - WOLFSSL_MSG("error: write() after WANT_WRITE with short size"); - return ssl->error = BAD_FUNC_ARG; - } - } - } - -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - dtlsExtra = DTLS_RECORD_EXTRA; - } -#endif - - for (;;) { - int len; - byte* out; - byte* sendBuffer = (byte*)data + sent; /* may switch on comp */ - int buffSz; /* may switch on comp */ - int outputSz; -#ifdef HAVE_LIBZ - byte comp[MAX_RECORD_SIZE + MAX_COMP_EXTRA]; -#endif - - if (sent == sz) break; - - len = wolfSSL_GetMaxRecordSize(ssl, sz - sent); - -#ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - len = min(len, MAX_UDP_SIZE); - } -#endif - buffSz = len; - - /* check for available size */ - outputSz = len + COMP_EXTRA + dtlsExtra + MAX_MSG_EXTRA; - if ((ret = CheckAvailableSize(ssl, outputSz)) != 0) - return ssl->error = ret; - - /* get output buffer */ - out = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - -#ifdef HAVE_LIBZ - if (ssl->options.usingCompression) { - buffSz = myCompress(ssl, sendBuffer, buffSz, comp, sizeof(comp)); - if (buffSz < 0) { - return buffSz; - } - sendBuffer = comp; - } -#endif - if (!ssl->options.tls1_3) { - sendSz = BuildMessage(ssl, out, outputSz, sendBuffer, buffSz, - application_data, 0, 0, 1); - } - else { -#ifdef WOLFSSL_TLS13 - sendSz = BuildTls13Message(ssl, out, outputSz, sendBuffer, buffSz, - application_data, 0, 0, 1); -#else - sendSz = BUFFER_ERROR; -#endif - } - if (sendSz < 0) { - #ifdef WOLFSSL_ASYNC_CRYPT - if (sendSz == WC_PENDING_E) - ssl->error = sendSz; - #endif - return BUILD_MSG_ERROR; - } - - ssl->buffers.outputBuffer.length += sendSz; - - if ( (ssl->error = SendBuffered(ssl)) < 0) { - WOLFSSL_ERROR(ssl->error); - /* store for next call if WANT_WRITE or user embedSend() that - doesn't present like WANT_WRITE */ - ssl->buffers.plainSz = len; - ssl->buffers.prevSent = sent; - if (ssl->error == SOCKET_ERROR_E && (ssl->options.connReset || - ssl->options.isClosed)) { - ssl->error = SOCKET_PEER_CLOSED_E; - WOLFSSL_ERROR(ssl->error); - return 0; /* peer reset or closed */ - } - return ssl->error; - } - - sent += len; - - /* only one message per attempt */ - if (ssl->options.partialWrite == 1) { - WOLFSSL_MSG("Partial Write on, only sending one record"); - break; - } - } - - return sent; -} - -/* process input data */ -int ReceiveData(WOLFSSL* ssl, byte* output, int sz, int peek) -{ - int size; - - WOLFSSL_ENTER("ReceiveData()"); - - /* reset error state */ - if (ssl->error == WANT_READ - #ifdef WOLFSSL_ASYNC_CRYPT - || ssl->error == WC_PENDING_E - #endif - ) { - ssl->error = 0; - } - -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - /* In DTLS mode, we forgive some errors and allow the session - * to continue despite them. */ - if (ssl->error == VERIFY_MAC_ERROR || ssl->error == DECRYPT_ERROR) - ssl->error = 0; - } -#endif /* WOLFSSL_DTLS */ - - if (ssl->error != 0 && ssl->error != WANT_WRITE) { - WOLFSSL_MSG("User calling wolfSSL_read in error state, not allowed"); - return ssl->error; - } - -#ifdef WOLFSSL_EARLY_DATA - if (ssl->earlyData != no_early_data) { - } - else -#endif - if (ssl->options.handShakeState != HANDSHAKE_DONE) { - int err; - WOLFSSL_MSG("Handshake not complete, trying to finish"); - if ( (err = wolfSSL_negotiate(ssl)) != WOLFSSL_SUCCESS) { - #ifdef WOLFSSL_ASYNC_CRYPT - /* if async would block return WANT_WRITE */ - if (ssl->error == WC_PENDING_E) { - return WOLFSSL_CBIO_ERR_WANT_READ; - } - #endif - return err; - } - } - -#ifdef HAVE_SECURE_RENEGOTIATION -startScr: - if (ssl->secure_renegotiation && ssl->secure_renegotiation->startScr) { - int err; - WOLFSSL_MSG("Need to start scr, server requested"); - if ( (err = wolfSSL_Rehandshake(ssl)) != WOLFSSL_SUCCESS) - return err; - ssl->secure_renegotiation->startScr = 0; /* only start once */ - } -#endif - - while (ssl->buffers.clearOutputBuffer.length == 0) { - if ( (ssl->error = ProcessReply(ssl)) < 0) { - WOLFSSL_ERROR(ssl->error); - if (ssl->error == ZERO_RETURN) { - WOLFSSL_MSG("Zero return, no more data coming"); - return 0; /* no more data coming */ - } - if (ssl->error == SOCKET_ERROR_E) { - if (ssl->options.connReset || ssl->options.isClosed) { - WOLFSSL_MSG("Peer reset or closed, connection done"); - ssl->error = SOCKET_PEER_CLOSED_E; - WOLFSSL_ERROR(ssl->error); - return 0; /* peer reset or closed */ - } - } - return ssl->error; - } - #ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->secure_renegotiation && - ssl->secure_renegotiation->startScr) { - goto startScr; - } - #endif - } - - if (sz < (int)ssl->buffers.clearOutputBuffer.length) - size = sz; - else - size = ssl->buffers.clearOutputBuffer.length; - - XMEMCPY(output, ssl->buffers.clearOutputBuffer.buffer, size); - - if (peek == 0) { - ssl->buffers.clearOutputBuffer.length -= size; - ssl->buffers.clearOutputBuffer.buffer += size; - } - - if (ssl->buffers.clearOutputBuffer.length == 0 && - ssl->buffers.inputBuffer.dynamicFlag) - ShrinkInputBuffer(ssl, NO_FORCED_FREE); - - WOLFSSL_LEAVE("ReceiveData()", size); - return size; -} - - -/* send alert message */ -int SendAlert(WOLFSSL* ssl, int severity, int type) -{ - byte input[ALERT_SIZE]; - byte *output; - int sendSz; - int ret; - int outputSz; - int dtlsExtra = 0; - - WOLFSSL_ENTER("SendAlert"); - -#ifdef HAVE_WRITE_DUP - if (ssl->dupWrite && ssl->dupSide == READ_DUP_SIDE) { - int notifyErr = 0; - - WOLFSSL_MSG("Read dup side cannot write alerts, notifying sibling"); - - if (type == close_notify) { - notifyErr = ZERO_RETURN; - } else if (severity == alert_fatal) { - notifyErr = FATAL_ERROR; - } - - if (notifyErr != 0) { - return NotifyWriteSide(ssl, notifyErr); - } - - return 0; - } -#endif - - /* if sendalert is called again for nonblocking */ - if (ssl->options.sendAlertState != 0) { - ret = SendBuffered(ssl); - if (ret == 0) - ssl->options.sendAlertState = 0; - return ret; - } - - #ifdef OPENSSL_EXTRA - if (ssl->CBIS != NULL) { - ssl->CBIS(ssl, SSL_CB_ALERT, type); - } - #endif - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - dtlsExtra = DTLS_RECORD_EXTRA; - #endif - - /* check for available size */ - outputSz = ALERT_SIZE + MAX_MSG_EXTRA + dtlsExtra; - if ((ret = CheckAvailableSize(ssl, outputSz)) != 0) - return ret; - - /* Check output buffer */ - if (ssl->buffers.outputBuffer.buffer == NULL) - return BUFFER_E; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - input[0] = (byte)severity; - input[1] = (byte)type; - ssl->alert_history.last_tx.code = type; - ssl->alert_history.last_tx.level = severity; - if (severity == alert_fatal) { - ssl->options.isClosed = 1; /* Don't send close_notify */ - } - - /* only send encrypted alert if handshake actually complete, otherwise - other side may not be able to handle it */ - if (IsEncryptionOn(ssl, 1) && (IsAtLeastTLSv1_3(ssl->version) || - ssl->options.handShakeDone)) { - sendSz = BuildMessage(ssl, output, outputSz, input, ALERT_SIZE, alert, - 0, 0, 0); - } - else { - - AddRecordHeader(output, ALERT_SIZE, alert, ssl); - output += RECORD_HEADER_SZ; - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - output += DTLS_RECORD_EXTRA; - #endif - XMEMCPY(output, input, ALERT_SIZE); - - sendSz = RECORD_HEADER_SZ + ALERT_SIZE; - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - sendSz += DTLS_RECORD_EXTRA; - #endif - } - if (sendSz < 0) - return BUILD_MSG_ERROR; - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "Alert"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "Alert", alert, output, sendSz, WRITE_PROTO, - ssl->heap); - #endif - - ssl->buffers.outputBuffer.length += sendSz; - ssl->options.sendAlertState = 1; - - ret = SendBuffered(ssl); - - WOLFSSL_LEAVE("SendAlert", ret); - - return ret; -} - -const char* wolfSSL_ERR_reason_error_string(unsigned long e) -{ -#ifdef NO_ERROR_STRINGS - - (void)e; - return "no support for error strings built in"; - -#else - - int error = (int)e; - - /* pass to wolfCrypt */ - if (error < MAX_CODE_E && error > MIN_CODE_E) { - return wc_GetErrorString(error); - } - - switch (error) { - -#ifdef WOLFSSL_WPAS - case 0 : - return "ok"; -#endif - - case UNSUPPORTED_SUITE : - return "unsupported cipher suite"; - - case INPUT_CASE_ERROR : - return "input state error"; - - case PREFIX_ERROR : - return "bad index to key rounds"; - - case MEMORY_ERROR : - return "out of memory"; - - case VERIFY_FINISHED_ERROR : - return "verify problem on finished"; - - case VERIFY_MAC_ERROR : - return "verify mac problem"; - - case PARSE_ERROR : - return "parse error on header"; - - case SIDE_ERROR : - return "wrong client/server type"; - - case NO_PEER_CERT : - return "peer didn't send cert"; - - case UNKNOWN_HANDSHAKE_TYPE : - return "weird handshake type"; - - case SOCKET_ERROR_E : - return "error state on socket"; - - case SOCKET_NODATA : - return "expected data, not there"; - - case INCOMPLETE_DATA : - return "don't have enough data to complete task"; - - case UNKNOWN_RECORD_TYPE : - return "unknown type in record hdr"; - - case DECRYPT_ERROR : - return "error during decryption"; - - case FATAL_ERROR : - return "received alert fatal error"; - - case ENCRYPT_ERROR : - return "error during encryption"; - - case FREAD_ERROR : - return "fread problem"; - - case NO_PEER_KEY : - return "need peer's key"; - - case NO_PRIVATE_KEY : - return "need the private key"; - - case NO_DH_PARAMS : - return "server missing DH params"; - - case RSA_PRIVATE_ERROR : - return "error during rsa priv op"; - - case MATCH_SUITE_ERROR : - return "can't match cipher suite"; - - case COMPRESSION_ERROR : - return "compression mismatch error"; - - case BUILD_MSG_ERROR : - return "build message failure"; - - case BAD_HELLO : - return "client hello malformed"; - - case DOMAIN_NAME_MISMATCH : - return "peer subject name mismatch"; - - case IPADDR_MISMATCH : - return "peer ip address mismatch"; - - case WANT_READ : - case WOLFSSL_ERROR_WANT_READ : - return "non-blocking socket wants data to be read"; - - case NOT_READY_ERROR : - return "handshake layer not ready yet, complete first"; - - case VERSION_ERROR : - return "record layer version error"; - - case WANT_WRITE : - case WOLFSSL_ERROR_WANT_WRITE : - return "non-blocking socket write buffer full"; - - case BUFFER_ERROR : - return "malformed buffer input error"; - - case VERIFY_CERT_ERROR : - return "verify problem on certificate"; - - case VERIFY_SIGN_ERROR : - return "verify problem based on signature"; - - case CLIENT_ID_ERROR : - return "psk client identity error"; - - case SERVER_HINT_ERROR: - return "psk server hint error"; - - case PSK_KEY_ERROR: - return "psk key callback error"; - - case NTRU_KEY_ERROR: - return "NTRU key error"; - - case NTRU_DRBG_ERROR: - return "NTRU drbg error"; - - case NTRU_ENCRYPT_ERROR: - return "NTRU encrypt error"; - - case NTRU_DECRYPT_ERROR: - return "NTRU decrypt error"; - - case GETTIME_ERROR: - return "gettimeofday() error"; - - case GETITIMER_ERROR: - return "getitimer() error"; - - case SIGACT_ERROR: - return "sigaction() error"; - - case SETITIMER_ERROR: - return "setitimer() error"; - - case LENGTH_ERROR: - return "record layer length error"; - - case PEER_KEY_ERROR: - return "cant decode peer key"; - - case ZERO_RETURN: - case WOLFSSL_ERROR_ZERO_RETURN: - return "peer sent close notify alert"; - - case ECC_CURVETYPE_ERROR: - return "Bad ECC Curve Type or unsupported"; - - case ECC_CURVE_ERROR: - return "Bad ECC Curve or unsupported"; - - case ECC_PEERKEY_ERROR: - return "Bad ECC Peer Key"; - - case ECC_MAKEKEY_ERROR: - return "ECC Make Key failure"; - - case ECC_EXPORT_ERROR: - return "ECC Export Key failure"; - - case ECC_SHARED_ERROR: - return "ECC DHE shared failure"; - - case NOT_CA_ERROR: - return "Not a CA by basic constraint error"; - - case HTTP_TIMEOUT: - return "HTTP timeout for OCSP or CRL req"; - - case BAD_CERT_MANAGER_ERROR: - return "Bad Cert Manager error"; - - case OCSP_CERT_REVOKED: - return "OCSP Cert revoked"; - - case CRL_CERT_REVOKED: - return "CRL Cert revoked"; - - case CRL_MISSING: - return "CRL missing, not loaded"; - - case MONITOR_SETUP_E: - return "CRL monitor setup error"; - - case THREAD_CREATE_E: - return "Thread creation problem"; - - case OCSP_NEED_URL: - return "OCSP need URL"; - - case OCSP_CERT_UNKNOWN: - return "OCSP Cert unknown"; - - case OCSP_LOOKUP_FAIL: - return "OCSP Responder lookup fail"; - - case MAX_CHAIN_ERROR: - return "Maximum Chain Depth Exceeded"; - - case COOKIE_ERROR: - return "DTLS Cookie Error"; - - case SEQUENCE_ERROR: - return "DTLS Sequence Error"; - - case SUITES_ERROR: - return "Suites Pointer Error"; - - case OUT_OF_ORDER_E: - return "Out of order message, fatal"; - - case BAD_KEA_TYPE_E: - return "Bad KEA type found"; - - case SANITY_CIPHER_E: - return "Sanity check on ciphertext failed"; - - case RECV_OVERFLOW_E: - return "Receive callback returned more than requested"; - - case GEN_COOKIE_E: - return "Generate Cookie Error"; - - case NO_PEER_VERIFY: - return "Need peer certificate verify Error"; - - case FWRITE_ERROR: - return "fwrite Error"; - - case CACHE_MATCH_ERROR: - return "Cache restore header match Error"; - - case UNKNOWN_SNI_HOST_NAME_E: - return "Unrecognized host name Error"; - - case UNKNOWN_MAX_FRAG_LEN_E: - return "Unrecognized max frag len Error"; - - case KEYUSE_SIGNATURE_E: - return "Key Use digitalSignature not set Error"; - - case KEYUSE_ENCIPHER_E: - return "Key Use keyEncipherment not set Error"; - - case EXTKEYUSE_AUTH_E: - return "Ext Key Use server/client auth not set Error"; - - case SEND_OOB_READ_E: - return "Send Callback Out of Bounds Read Error"; - - case SECURE_RENEGOTIATION_E: - return "Invalid Renegotiation Error"; - - case SESSION_TICKET_LEN_E: - return "Session Ticket Too Long Error"; - - case SESSION_TICKET_EXPECT_E: - return "Session Ticket Error"; - - case SESSION_SECRET_CB_E: - return "Session Secret Callback Error"; - - case NO_CHANGE_CIPHER_E: - return "Finished received from peer before Change Cipher Error"; - - case SANITY_MSG_E: - return "Sanity Check on message order Error"; - - case DUPLICATE_MSG_E: - return "Duplicate HandShake message Error"; - - case SNI_UNSUPPORTED: - return "Protocol version does not support SNI Error"; - - case SOCKET_PEER_CLOSED_E: - return "Peer closed underlying transport Error"; - - case BAD_TICKET_KEY_CB_SZ: - return "Bad user session ticket key callback Size Error"; - - case BAD_TICKET_MSG_SZ: - return "Bad session ticket message Size Error"; - - case BAD_TICKET_ENCRYPT: - return "Bad user ticket callback encrypt Error"; - - case DH_KEY_SIZE_E: - return "DH key too small Error"; - - case SNI_ABSENT_ERROR: - return "No Server Name Indication extension Error"; - - case RSA_SIGN_FAULT: - return "RSA Signature Fault Error"; - - case HANDSHAKE_SIZE_ERROR: - return "Handshake message too large Error"; - - case UNKNOWN_ALPN_PROTOCOL_NAME_E: - return "Unrecognized protocol name Error"; - - case BAD_CERTIFICATE_STATUS_ERROR: - return "Bad Certificate Status Message Error"; - - case OCSP_INVALID_STATUS: - return "Invalid OCSP Status Error"; - - case OCSP_WANT_READ: - return "OCSP nonblock wants read"; - - case RSA_KEY_SIZE_E: - return "RSA key too small"; - - case ECC_KEY_SIZE_E: - return "ECC key too small"; - - case DTLS_EXPORT_VER_E: - return "Version needs updated after code change or version mismatch"; - - case INPUT_SIZE_E: - return "Input size too large Error"; - - case CTX_INIT_MUTEX_E: - return "Initialize ctx mutex error"; - - case EXT_MASTER_SECRET_NEEDED_E: - return "Extended Master Secret must be enabled to resume EMS session"; - - case DTLS_POOL_SZ_E: - return "Maximum DTLS pool size exceeded"; - - case DECODE_E: - return "Decode handshake message error"; - - case WRITE_DUP_READ_E: - return "Write dup write side can't read error"; - - case WRITE_DUP_WRITE_E: - return "Write dup read side can't write error"; - - case INVALID_CERT_CTX_E: - return "Certificate context does not match request or not empty"; - - case BAD_KEY_SHARE_DATA: - return "The Key Share data contains group that wasn't in Client Hello"; - - case MISSING_HANDSHAKE_DATA: - return "The handshake message is missing required data"; - - case BAD_BINDER: - return "Binder value does not match value server calculated"; - - case EXT_NOT_ALLOWED: - return "Extension type not allowed in handshake message type"; - - case INVALID_PARAMETER: - return "The security parameter is invalid"; - - case UNSUPPORTED_EXTENSION: - return "TLS Extension not requested by the client"; - - case PRF_MISSING: - return "Pseudo-random function is not enabled"; - - case KEY_SHARE_ERROR: - return "Key share extension did not contain a valid named group"; - - case POST_HAND_AUTH_ERROR: - return "Client will not do post handshake authentication"; - - case HRR_COOKIE_ERROR: - return "Cookie does not match one sent in HelloRetryRequest"; - - case MCAST_HIGHWATER_CB_E: - return "Multicast highwater callback returned error"; - - case ALERT_COUNT_E: - return "Alert Count exceeded error"; - - case EXT_MISSING: - return "Required TLS extension missing"; - - case DTLS_RETX_OVER_TX: - return "DTLS interrupting flight transmit with retransmit"; - - case DH_PARAMS_NOT_FFDHE_E: - return "Server DH parameters were not from the FFDHE set as required"; - - case TCA_INVALID_ID_TYPE: - return "TLS Extension Trusted CA ID type invalid"; - - case TCA_ABSENT_ERROR: - return "TLS Extension Trusted CA ID response absent"; - - case TSIP_MAC_DIGSZ_E: - return "TSIP MAC size invalid, must be sized for SHA-1 or SHA-256"; - - case CLIENT_CERT_CB_ERROR: - return "Error importing client cert or key from callback"; - - case SSL_SHUTDOWN_ALREADY_DONE_E: - return "Shutdown has already occurred"; - - case TLS13_SECRET_CB_E: - return "TLS1.3 Secret Callback Error"; - - default : - return "unknown error number"; - } - -#endif /* NO_ERROR_STRINGS */ -} - -void SetErrorString(int error, char* str) -{ - XSTRNCPY(str, wolfSSL_ERR_reason_error_string(error), WOLFSSL_MAX_ERROR_SZ); - str[WOLFSSL_MAX_ERROR_SZ-1] = 0; -} - -#ifndef NO_ERROR_STRINGS - #if defined(OPENSSL_ALL) || defined(WOLFSSL_QT) - #define SUITE_INFO(x,y,z,w,v,u) {(x),(y),(z),(w),(v),(u)} - #else - #define SUITE_INFO(x,y,z,w,v,u) {(x),(y),(z),(w)} - #endif -#else - #if defined(OPENSSL_ALL) || defined(WOLFSSL_QT) - #define SUITE_INFO(x,y,z,w,v,u) {(x),(z),(w),(v),(u)} - #else - #define SUITE_INFO(x,y,z,w,v,u) {(x),(z),(w)} - #endif -#endif - -static const CipherSuiteInfo cipher_names[] = -{ - -#ifdef BUILD_TLS_AES_128_GCM_SHA256 - SUITE_INFO("TLS13-AES128-GCM-SHA256","TLS_AES_128_GCM_SHA256",TLS13_BYTE,TLS_AES_128_GCM_SHA256, TLSv1_3_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_AES_256_GCM_SHA384 - SUITE_INFO("TLS13-AES256-GCM-SHA384","TLS_AES_256_GCM_SHA384",TLS13_BYTE,TLS_AES_256_GCM_SHA384, TLSv1_3_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_CHACHA20_POLY1305_SHA256 - SUITE_INFO("TLS13-CHACHA20-POLY1305-SHA256","TLS_CHACHA20_POLY1305_SHA256",TLS13_BYTE,TLS_CHACHA20_POLY1305_SHA256, TLSv1_3_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_AES_128_CCM_SHA256 - SUITE_INFO("TLS13-AES128-CCM-SHA256","TLS_AES_128_CCM_SHA256",TLS13_BYTE,TLS_AES_128_CCM_SHA256, TLSv1_3_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_AES_128_CCM_8_SHA256 - SUITE_INFO("TLS13-AES128-CCM-8-SHA256","TLS_AES_128_CCM_8_SHA256",TLS13_BYTE,TLS_AES_128_CCM_8_SHA256,TLSv1_3_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_SHA256_SHA256 - SUITE_INFO("TLS13-SHA256-SHA256","TLS_SHA256_SHA256",ECC_BYTE,TLS_SHA256_SHA256,TLSv1_3_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_SHA384_SHA384 - SUITE_INFO("TLS13-SHA384-SHA384","TLS_SHA384_SHA384",ECC_BYTE,TLS_SHA384_SHA384,TLSv1_3_MINOR, SSLv3_MAJOR), -#endif - -#ifndef WOLFSSL_NO_TLS12 - -#ifdef BUILD_SSL_RSA_WITH_RC4_128_SHA - SUITE_INFO("RC4-SHA","SSL_RSA_WITH_RC4_128_SHA",CIPHER_BYTE,SSL_RSA_WITH_RC4_128_SHA,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_SSL_RSA_WITH_RC4_128_MD5 - SUITE_INFO("RC4-MD5","SSL_RSA_WITH_RC4_128_MD5",CIPHER_BYTE,SSL_RSA_WITH_RC4_128_MD5,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA - SUITE_INFO("DES-CBC3-SHA","SSL_RSA_WITH_3DES_EDE_CBC_SHA",CIPHER_BYTE,SSL_RSA_WITH_3DES_EDE_CBC_SHA,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA - SUITE_INFO("AES128-SHA","TLS_RSA_WITH_AES_128_CBC_SHA",CIPHER_BYTE,TLS_RSA_WITH_AES_128_CBC_SHA,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA - SUITE_INFO("AES256-SHA","TLS_RSA_WITH_AES_256_CBC_SHA",CIPHER_BYTE,TLS_RSA_WITH_AES_256_CBC_SHA,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_NULL_MD5 - SUITE_INFO("NULL-MD5","TLS_RSA_WITH_NULL_MD5",CIPHER_BYTE,TLS_RSA_WITH_NULL_MD5,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_NULL_SHA - SUITE_INFO("NULL-SHA","TLS_RSA_WITH_NULL_SHA",CIPHER_BYTE,TLS_RSA_WITH_NULL_SHA,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_NULL_SHA256 - SUITE_INFO("NULL-SHA256","TLS_RSA_WITH_NULL_SHA256",CIPHER_BYTE,TLS_RSA_WITH_NULL_SHA256,TLSv1_2_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA - SUITE_INFO("DHE-RSA-AES128-SHA","TLS_DHE_RSA_WITH_AES_128_CBC_SHA",CIPHER_BYTE,TLS_DHE_RSA_WITH_AES_128_CBC_SHA,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA - SUITE_INFO("DHE-RSA-AES256-SHA","TLS_DHE_RSA_WITH_AES_256_CBC_SHA",CIPHER_BYTE,TLS_DHE_RSA_WITH_AES_256_CBC_SHA,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 - SUITE_INFO("DHE-PSK-AES256-GCM-SHA384","TLS_DHE_PSK_WITH_AES_256_GCM_SHA384",CIPHER_BYTE,TLS_DHE_PSK_WITH_AES_256_GCM_SHA384,TLSv1_2_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 - SUITE_INFO("DHE-PSK-AES128-GCM-SHA256","TLS_DHE_PSK_WITH_AES_128_GCM_SHA256",CIPHER_BYTE,TLS_DHE_PSK_WITH_AES_128_GCM_SHA256,TLSv1_2_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_GCM_SHA384 - SUITE_INFO("PSK-AES256-GCM-SHA384","TLS_PSK_WITH_AES_256_GCM_SHA384",CIPHER_BYTE,TLS_PSK_WITH_AES_256_GCM_SHA384,TLSv1_2_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_GCM_SHA256 - SUITE_INFO("PSK-AES128-GCM-SHA256","TLS_PSK_WITH_AES_128_GCM_SHA256",CIPHER_BYTE,TLS_PSK_WITH_AES_128_GCM_SHA256,TLSv1_2_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 - SUITE_INFO("DHE-PSK-AES256-CBC-SHA384","TLS_DHE_PSK_WITH_AES_256_CBC_SHA384",CIPHER_BYTE,TLS_DHE_PSK_WITH_AES_256_CBC_SHA384,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 - SUITE_INFO("DHE-PSK-AES128-CBC-SHA256","TLS_DHE_PSK_WITH_AES_128_CBC_SHA256",CIPHER_BYTE,TLS_DHE_PSK_WITH_AES_128_CBC_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA384 - SUITE_INFO("PSK-AES256-CBC-SHA384","TLS_PSK_WITH_AES_256_CBC_SHA384",CIPHER_BYTE,TLS_PSK_WITH_AES_256_CBC_SHA384,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA256 - SUITE_INFO("PSK-AES128-CBC-SHA256","TLS_PSK_WITH_AES_128_CBC_SHA256",CIPHER_BYTE,TLS_PSK_WITH_AES_128_CBC_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_CBC_SHA - SUITE_INFO("PSK-AES128-CBC-SHA","TLS_PSK_WITH_AES_128_CBC_SHA",CIPHER_BYTE,TLS_PSK_WITH_AES_128_CBC_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_CBC_SHA - SUITE_INFO("PSK-AES256-CBC-SHA","TLS_PSK_WITH_AES_256_CBC_SHA",CIPHER_BYTE,TLS_PSK_WITH_AES_256_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_128_CCM - SUITE_INFO("DHE-PSK-AES128-CCM","TLS_DHE_PSK_WITH_AES_128_CCM",ECC_BYTE,TLS_DHE_PSK_WITH_AES_128_CCM,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_AES_256_CCM - SUITE_INFO("DHE-PSK-AES256-CCM","TLS_DHE_PSK_WITH_AES_256_CCM",ECC_BYTE,TLS_DHE_PSK_WITH_AES_256_CCM,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM - SUITE_INFO("PSK-AES128-CCM","TLS_PSK_WITH_AES_128_CCM",ECC_BYTE,TLS_PSK_WITH_AES_128_CCM,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM - SUITE_INFO("PSK-AES256-CCM","TLS_PSK_WITH_AES_256_CCM",ECC_BYTE,TLS_PSK_WITH_AES_256_CCM,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_128_CCM_8 - SUITE_INFO("PSK-AES128-CCM-8","TLS_PSK_WITH_AES_128_CCM_8",ECC_BYTE,TLS_PSK_WITH_AES_128_CCM_8,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_AES_256_CCM_8 - SUITE_INFO("PSK-AES256-CCM-8","TLS_PSK_WITH_AES_256_CCM_8",ECC_BYTE,TLS_PSK_WITH_AES_256_CCM_8,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_NULL_SHA384 - SUITE_INFO("DHE-PSK-NULL-SHA384","TLS_DHE_PSK_WITH_NULL_SHA384",CIPHER_BYTE,TLS_DHE_PSK_WITH_NULL_SHA384,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_NULL_SHA256 - SUITE_INFO("DHE-PSK-NULL-SHA256","TLS_DHE_PSK_WITH_NULL_SHA256",CIPHER_BYTE,TLS_DHE_PSK_WITH_NULL_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_NULL_SHA384 - SUITE_INFO("PSK-NULL-SHA384","TLS_PSK_WITH_NULL_SHA384",CIPHER_BYTE,TLS_PSK_WITH_NULL_SHA384,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_NULL_SHA256 - SUITE_INFO("PSK-NULL-SHA256","TLS_PSK_WITH_NULL_SHA256",CIPHER_BYTE,TLS_PSK_WITH_NULL_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_NULL_SHA - SUITE_INFO("PSK-NULL-SHA","TLS_PSK_WITH_NULL_SHA",CIPHER_BYTE,TLS_PSK_WITH_NULL_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_HC_128_MD5 - SUITE_INFO("HC128-MD5","TLS_RSA_WITH_HC_128_MD5",CIPHER_BYTE,TLS_RSA_WITH_HC_128_MD5,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_HC_128_SHA - SUITE_INFO("HC128-SHA","TLS_RSA_WITH_HC_128_SHA",CIPHER_BYTE,TLS_RSA_WITH_HC_128_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_RABBIT_SHA - SUITE_INFO("RABBIT-SHA","TLS_RSA_WITH_RABBIT_SHA",CIPHER_BYTE,TLS_RSA_WITH_RABBIT_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA - SUITE_INFO("NTRU-RC4-SHA","TLS_NTRU_RSA_WITH_RC4_128_SHA",CIPHER_BYTE,TLS_NTRU_RSA_WITH_RC4_128_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA - SUITE_INFO("NTRU-DES-CBC3-SHA","TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA",CIPHER_BYTE,TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA - SUITE_INFO("NTRU-AES128-SHA","TLS_NTRU_RSA_WITH_AES_128_CBC_SHA",CIPHER_BYTE,TLS_NTRU_RSA_WITH_AES_128_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA - SUITE_INFO("NTRU-AES256-SHA","TLS_NTRU_RSA_WITH_AES_256_CBC_SHA",CIPHER_BYTE,TLS_NTRU_RSA_WITH_AES_256_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8 - SUITE_INFO("AES128-CCM-8","TLS_RSA_WITH_AES_128_CCM_8",ECC_BYTE,TLS_RSA_WITH_AES_128_CCM_8, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8 - SUITE_INFO("AES256-CCM-8","TLS_RSA_WITH_AES_256_CCM_8",ECC_BYTE,TLS_RSA_WITH_AES_256_CCM_8, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM - SUITE_INFO("ECDHE-ECDSA-AES128-CCM","TLS_ECDHE_ECDSA_WITH_AES_128_CCM",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_AES_128_CCM, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 - SUITE_INFO("ECDHE-ECDSA-AES128-CCM-8","TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 - SUITE_INFO("ECDHE-ECDSA-AES256-CCM-8","TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA - SUITE_INFO("ECDHE-RSA-AES128-SHA","TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",ECC_BYTE,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA - SUITE_INFO("ECDHE-RSA-AES256-SHA","TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",ECC_BYTE,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA - SUITE_INFO("ECDHE-ECDSA-AES128-SHA","TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA - SUITE_INFO("ECDHE-ECDSA-AES256-SHA","TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_RC4_128_SHA - SUITE_INFO("ECDHE-RSA-RC4-SHA","TLS_ECDHE_RSA_WITH_RC4_128_SHA",ECC_BYTE,TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA - SUITE_INFO("ECDHE-RSA-DES-CBC3-SHA","TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA",ECC_BYTE,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA - SUITE_INFO("ECDHE-ECDSA-RC4-SHA","TLS_ECDHE_ECDSA_WITH_RC4_128_SHA",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA - SUITE_INFO("ECDHE-ECDSA-DES-CBC3-SHA","TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_128_CBC_SHA256 - SUITE_INFO("AES128-SHA256","TLS_RSA_WITH_AES_128_CBC_SHA256",CIPHER_BYTE,TLS_RSA_WITH_AES_128_CBC_SHA256, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_256_CBC_SHA256 - SUITE_INFO("AES256-SHA256","TLS_RSA_WITH_AES_256_CBC_SHA256",CIPHER_BYTE,TLS_RSA_WITH_AES_256_CBC_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 - SUITE_INFO("DHE-RSA-AES128-SHA256","TLS_DHE_RSA_WITH_AES_128_CBC_SHA256",CIPHER_BYTE,TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 - SUITE_INFO("DHE-RSA-AES256-SHA256","TLS_DHE_RSA_WITH_AES_256_CBC_SHA256",CIPHER_BYTE,TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA - SUITE_INFO("ECDH-RSA-AES128-SHA","TLS_ECDH_RSA_WITH_AES_128_CBC_SHA",ECC_BYTE,TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA - SUITE_INFO("ECDH-RSA-AES256-SHA","TLS_ECDH_RSA_WITH_AES_256_CBC_SHA",ECC_BYTE,TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA - SUITE_INFO("ECDH-ECDSA-AES128-SHA","TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA",ECC_BYTE,TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA - SUITE_INFO("ECDH-ECDSA-AES256-SHA","TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA",ECC_BYTE,TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA - SUITE_INFO("ECDH-RSA-RC4-SHA","TLS_ECDH_RSA_WITH_RC4_128_SHA",ECC_BYTE,TLS_ECDH_RSA_WITH_RC4_128_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA - SUITE_INFO("ECDH-RSA-DES-CBC3-SHA","TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA",ECC_BYTE,TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA - SUITE_INFO("ECDH-ECDSA-RC4-SHA","TLS_ECDH_ECDSA_WITH_RC4_128_SHA",ECC_BYTE,TLS_ECDH_ECDSA_WITH_RC4_128_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA - SUITE_INFO("ECDH-ECDSA-DES-CBC3-SHA","TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA",ECC_BYTE,TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256 - SUITE_INFO("AES128-GCM-SHA256","TLS_RSA_WITH_AES_128_GCM_SHA256",CIPHER_BYTE,TLS_RSA_WITH_AES_128_GCM_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384 - SUITE_INFO("AES256-GCM-SHA384","TLS_RSA_WITH_AES_256_GCM_SHA384",CIPHER_BYTE,TLS_RSA_WITH_AES_256_GCM_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 - SUITE_INFO("DHE-RSA-AES128-GCM-SHA256","TLS_DHE_RSA_WITH_AES_128_GCM_SHA256",CIPHER_BYTE,TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 - SUITE_INFO("DHE-RSA-AES256-GCM-SHA384","TLS_DHE_RSA_WITH_AES_256_GCM_SHA384",CIPHER_BYTE,TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 - SUITE_INFO("ECDHE-RSA-AES128-GCM-SHA256","TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",ECC_BYTE,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 - SUITE_INFO("ECDHE-RSA-AES256-GCM-SHA384","TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",ECC_BYTE,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 - SUITE_INFO("ECDHE-ECDSA-AES128-GCM-SHA256","TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 - SUITE_INFO("ECDHE-ECDSA-AES256-GCM-SHA384","TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 - SUITE_INFO("ECDH-RSA-AES128-GCM-SHA256","TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256",ECC_BYTE,TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 - SUITE_INFO("ECDH-RSA-AES256-GCM-SHA384","TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384",ECC_BYTE,TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 - SUITE_INFO("ECDH-ECDSA-AES128-GCM-SHA256","TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256",ECC_BYTE,TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 - SUITE_INFO("ECDH-ECDSA-AES256-GCM-SHA384","TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384",ECC_BYTE,TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA - SUITE_INFO("CAMELLIA128-SHA","TLS_RSA_WITH_CAMELLIA_128_CBC_SHA",CIPHER_BYTE,TLS_RSA_WITH_CAMELLIA_128_CBC_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA - SUITE_INFO("DHE-RSA-CAMELLIA128-SHA","TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA",CIPHER_BYTE,TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA - SUITE_INFO("CAMELLIA256-SHA","TLS_RSA_WITH_CAMELLIA_256_CBC_SHA",CIPHER_BYTE,TLS_RSA_WITH_CAMELLIA_256_CBC_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA - SUITE_INFO("DHE-RSA-CAMELLIA256-SHA","TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA",CIPHER_BYTE,TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 - SUITE_INFO("CAMELLIA128-SHA256","TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256",CIPHER_BYTE,TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 - SUITE_INFO("DHE-RSA-CAMELLIA128-SHA256","TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256",CIPHER_BYTE,TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 - SUITE_INFO("CAMELLIA256-SHA256","TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256",CIPHER_BYTE,TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 - SUITE_INFO("DHE-RSA-CAMELLIA256-SHA256","TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256",CIPHER_BYTE,TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 - SUITE_INFO("ECDHE-RSA-AES128-SHA256","TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",ECC_BYTE,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 - SUITE_INFO("ECDHE-ECDSA-AES128-SHA256","TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 - SUITE_INFO("ECDH-RSA-AES128-SHA256","TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256",ECC_BYTE,TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 - SUITE_INFO("ECDH-ECDSA-AES128-SHA256","TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256",ECC_BYTE,TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 - SUITE_INFO("ECDHE-RSA-AES256-SHA384","TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384",ECC_BYTE,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 - SUITE_INFO("ECDHE-ECDSA-AES256-SHA384","TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 - SUITE_INFO("ECDH-RSA-AES256-SHA384","TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384",ECC_BYTE,TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 - SUITE_INFO("ECDH-ECDSA-AES256-SHA384","TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384",ECC_BYTE,TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 - SUITE_INFO("ECDHE-RSA-CHACHA20-POLY1305","TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",CHACHA_BYTE,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 - SUITE_INFO("ECDHE-ECDSA-CHACHA20-POLY1305","TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256",CHACHA_BYTE,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 - SUITE_INFO("DHE-RSA-CHACHA20-POLY1305","TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256",CHACHA_BYTE,TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256 - SUITE_INFO("ECDHE-RSA-CHACHA20-POLY1305-OLD","TLS_ECDHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256",CHACHA_BYTE,TLS_ECDHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_CHACHA20_OLD_POLY1305_SHA256 - SUITE_INFO("ECDHE-ECDSA-CHACHA20-POLY1305-OLD","TLS_ECDHE_ECDSA_WITH_CHACHA20_OLD_POLY1305_SHA256",CHACHA_BYTE,TLS_ECDHE_ECDSA_WITH_CHACHA20_OLD_POLY1305_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256 - SUITE_INFO("DHE-RSA-CHACHA20-POLY1305-OLD","TLS_DHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256",CHACHA_BYTE,TLS_DHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DH_anon_WITH_AES_128_CBC_SHA - SUITE_INFO("ADH-AES128-SHA","TLS_DH_anon_WITH_AES_128_CBC_SHA",CIPHER_BYTE,TLS_DH_anon_WITH_AES_128_CBC_SHA, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DH_anon_WITH_AES_256_GCM_SHA384 - SUITE_INFO("ADH-AES256-GCM-SHA384","TLS_DH_anon_WITH_AES_256_GCM_SHA384",CIPHER_BYTE,TLS_DH_anon_WITH_AES_256_GCM_SHA384, TLSv1_2_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_QSH - SUITE_INFO("QSH","TLS_QSH",QSH_BYTE,TLS_QSH, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef HAVE_RENEGOTIATION_INDICATION - SUITE_INFO("RENEGOTIATION-INFO","TLS_EMPTY_RENEGOTIATION_INFO_SCSV",CIPHER_BYTE,TLS_EMPTY_RENEGOTIATION_INFO_SCSV,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_SSL_RSA_WITH_IDEA_CBC_SHA - SUITE_INFO("IDEA-CBC-SHA","SSL_RSA_WITH_IDEA_CBC_SHA",CIPHER_BYTE,SSL_RSA_WITH_IDEA_CBC_SHA,SSLv3_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_ECDSA_WITH_NULL_SHA - SUITE_INFO("ECDHE-ECDSA-NULL-SHA","TLS_ECDHE_ECDSA_WITH_NULL_SHA",ECC_BYTE,TLS_ECDHE_ECDSA_WITH_NULL_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_PSK_WITH_NULL_SHA256 - SUITE_INFO("ECDHE-PSK-NULL-SHA256","TLS_ECDHE_PSK_WITH_NULL_SHA256",ECC_BYTE,TLS_ECDHE_PSK_WITH_NULL_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 - SUITE_INFO("ECDHE-PSK-AES128-CBC-SHA256","TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256",ECC_BYTE,TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256,TLSv1_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 - SUITE_INFO("PSK-CHACHA20-POLY1305","TLS_PSK_WITH_CHACHA20_POLY1305_SHA256",CHACHA_BYTE,TLS_PSK_WITH_CHACHA20_POLY1305_SHA256,TLSv1_2_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 - SUITE_INFO("ECDHE-PSK-CHACHA20-POLY1305","TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256",CHACHA_BYTE,TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256,TLSv1_2_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 - SUITE_INFO("DHE-PSK-CHACHA20-POLY1305","TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256",CHACHA_BYTE,TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256,TLSv1_2_MINOR,SSLv3_MAJOR), -#endif - -#ifdef BUILD_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA - SUITE_INFO("EDH-RSA-DES-CBC3-SHA","TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA",CIPHER_BYTE,TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, TLSv1_MINOR, SSLv3_MAJOR), -#endif - -#ifdef BUILD_WDM_WITH_NULL_SHA256 - SUITE_INFO("WDM-NULL-SHA256","WDM_WITH_NULL_SHA256",CIPHER_BYTE,WDM_WITH_NULL_SHA256, TLSv1_3_MINOR, SSLv3_MAJOR) -#endif - -#endif /* WOLFSSL_NO_TLS12 */ -}; - - -/* returns the cipher_names array */ -const CipherSuiteInfo* GetCipherNames(void) -{ - return cipher_names; -} - - -/* returns the number of elements in the cipher_names array */ -int GetCipherNamesSize(void) -{ - return (int)(sizeof(cipher_names) / sizeof(CipherSuiteInfo)); -} - - -const char* GetCipherNameInternal(const byte cipherSuite0, const byte cipherSuite) -{ - int i; - const char* nameInternal = "None"; - - for (i = 0; i < GetCipherNamesSize(); i++) { - if ((cipher_names[i].cipherSuite0 == cipherSuite0) && - (cipher_names[i].cipherSuite == cipherSuite)) { - nameInternal = cipher_names[i].name; - break; - } - } - return nameInternal; -} - -#if defined(WOLFSSL_QT) || defined(OPENSSL_ALL) -const char* GetCipherKeaStr(char n[][MAX_SEGMENT_SZ]) { - const char* keaStr = NULL; - const char *n0,*n1,*n2,*n3,*n4; - n0 = n[0]; - n1 = n[1]; - n2 = n[2]; - n3 = n[3]; - n4 = n[4]; - - if (XSTRNCMP(n0,"ECDHE",5) == 0 && XSTRNCMP(n1,"PSK",3) == 0) - keaStr = "ECDHEPSK"; - else if (XSTRNCMP(n0,"ECDH",4) == 0) - keaStr = "ECDH"; - else if (XSTRNCMP(n0,"DHE",3) == 0 && XSTRNCMP(n1,"PSK",3) == 0) - keaStr = "DHEPSK"; - else if (XSTRNCMP(n0,"DHE",3) == 0) - keaStr = "DH"; - else if (XSTRNCMP(n0,"RSA",3) == 0 && XSTRNCMP(n1,"PSK",3) == 0) - keaStr = "RSAPSK"; - else if (XSTRNCMP(n0,"SRP",3) == 0) - keaStr = "SRP"; - else if (XSTRNCMP(n0,"PSK",3) == 0) - keaStr = "PSK"; - else if (XSTRNCMP(n0,"EDH",3) == 0) - keaStr = "EDH"; - else if ((XSTRNCMP(n1,"SHA",3) == 0) || (XSTRNCMP(n2,"SHA",3) == 0) || - (XSTRNCMP(n3,"SHA",3) == 0) || (XSTRNCMP(n4,"SHA",3) == 0) || - (XSTRNCMP(n2,"RSA",3) == 0) || (XSTRNCMP(n0,"AES128",6) == 0) || - (XSTRNCMP(n0,"AES256",6) == 0) || (XSTRNCMP(n1,"MD5",3) == 0)) - keaStr = "RSA"; - else - keaStr = "unknown"; - - return keaStr; -} - -const char* GetCipherAuthStr(char n[][MAX_SEGMENT_SZ]) { - - const char* authStr = NULL; - const char *n0,*n1,*n2; - n0 = n[0]; - n1 = n[1]; - n2 = n[2]; - - if ((XSTRNCMP(n0,"AES128",6) == 0) || (XSTRNCMP(n0,"AES256",6) == 0) || - ((XSTRNCMP(n0,"TLS13",5) == 0) && ((XSTRNCMP(n1,"AES128",6) == 0) || - (XSTRNCMP(n1,"AES256",6) == 0) || (XSTRNCMP(n1,"CHACHA20",8) == 0))) || - (XSTRNCMP(n0,"RSA",3) == 0) || (XSTRNCMP(n1,"RSA",3) == 0) || - (XSTRNCMP(n1,"SHA",3) == 0) || (XSTRNCMP(n2,"SHA",3) == 0) || - (XSTRNCMP(n1,"MD5",3) == 0)) - authStr = "RSA"; - else if (XSTRNCMP(n0,"PSK",3) == 0 || XSTRNCMP(n1,"PSK",3) == 0) - authStr = "PSK"; - else if (XSTRNCMP(n0,"SRP",3) == 0 && XSTRNCMP(n1,"AES",3) == 0) - authStr = "SRP"; - else if (XSTRNCMP(n1,"ECDSA",5) == 0) - authStr = "ECDSA"; - else - authStr = "unknown"; - - return authStr; -} - -const char* GetCipherEncStr(char n[][MAX_SEGMENT_SZ]) { - const char* encStr = NULL; - const char *n0,*n1,*n2,*n3; - n0 = n[0]; - n1 = n[1]; - n2 = n[2]; - n3 = n[3]; - - if ((XSTRNCMP(n0,"AES256",6) == 0 && XSTRNCMP(n1,"GCM",3) == 0) || - (XSTRNCMP(n1,"AES256",6) == 0 && XSTRNCMP(n2,"GCM",3) == 0) || - (XSTRNCMP(n2,"AES256",6) == 0 && XSTRNCMP(n3,"GCM",3) == 0)) - encStr = "AESGCM(256)"; - - else if ((XSTRNCMP(n0,"AES128",6) == 0 && XSTRNCMP(n1,"GCM",3) == 0) || - (XSTRNCMP(n1,"AES128",6) == 0 && XSTRNCMP(n2,"GCM",3) == 0) || - (XSTRNCMP(n2,"AES128",6) == 0 && XSTRNCMP(n3,"GCM",3) == 0)) - encStr = "AESGCM(128)"; - - else if ((XSTRNCMP(n0,"AES128",6) == 0 && XSTRNCMP(n1,"CCM",3) == 0) || - (XSTRNCMP(n1,"AES128",6) == 0 && XSTRNCMP(n2,"CCM",3) == 0) || - (XSTRNCMP(n2,"AES128",6) == 0 && XSTRNCMP(n3,"CCM",3) == 0)) - encStr = "AESCCM(128)"; - - else if ((XSTRNCMP(n0,"AES128",6) == 0) || - (XSTRNCMP(n1,"AES128",6) == 0) || - (XSTRNCMP(n2,"AES128",6) == 0) || - (XSTRNCMP(n1,"AES",3) == 0 && XSTRNCMP(n2,"128",3) == 0) || - (XSTRNCMP(n2,"AES",3) == 0 && XSTRNCMP(n3,"128",3) == 0)) - encStr = "AES(128)"; - - else if ((XSTRNCMP(n0,"AES256",6) == 0) || - (XSTRNCMP(n1,"AES256",6) == 0) || - (XSTRNCMP(n2,"AES256",6) == 0) || - (XSTRNCMP(n1,"AES",3) == 0 && XSTRNCMP(n2,"256",3) == 0) || - (XSTRNCMP(n2,"AES",3) == 0 && XSTRNCMP(n3,"256",3) == 0)) - encStr = "AES(256)"; - - else if ((XSTRNCMP(n0,"CAMELLIA256",11) == 0) || - (XSTRNCMP(n2,"CAMELLIA256",11) == 0)) - encStr = "CAMELLIA(256)"; - else if ((XSTRNCMP(n0,"CAMELLIA128",11) == 0) || - (XSTRNCMP(n2,"CAMELLIA128",11) == 0)) - encStr = "CAMELLIA(128)"; - else if ((XSTRNCMP(n0,"RC4",3) == 0) || (XSTRNCMP(n2,"RC4",3) == 0)) - encStr = "RC4"; - else if (((XSTRNCMP(n0,"DES",3) == 0) || (XSTRNCMP(n2,"DES",3) == 0)) && - ((XSTRNCMP(n1,"CBC3",4) == 0) || (XSTRNCMP(n3,"CBC3",4) == 0))) - encStr = "3DES"; - else if ((XSTRNCMP(n1,"CHACHA20",8) == 0 && XSTRNCMP(n2,"POLY1305",8) == 0) || - (XSTRNCMP(n2,"CHACHA20",8) == 0 && XSTRNCMP(n3,"POLY1305",8) == 0)) - encStr = "CHACHA20/POLY1305(256)"; - else if ((XSTRNCMP(n0,"NULL",4) == 0) || (XSTRNCMP(n1,"NULL",4) == 0) || - (XSTRNCMP(n2,"NULL",4) == 0) || - ((XSTRNCMP(n0,"TLS13",5) == 0) && (XSTRNCMP(n3,"",0) == 0))) - encStr = "None"; - else if ((XSTRNCMP(n0,"IDEA",4) == 0)) - encStr = "IDEA"; - else if ((XSTRNCMP(n0,"RABBIT",4) == 0)) - encStr = "RABBIT"; - else if ((XSTRNCMP(n0,"HC128",5) == 0)) - encStr = "HC128"; - else - encStr = "unknown"; - - return encStr; -} - -/* Returns the MAC string of a cipher or "unknown" on failure */ -const char* GetCipherMacStr(char n[][MAX_SEGMENT_SZ]) { - - const char* macStr = NULL; - const char *n1,*n2,*n3,*n4; - n1 = n[1]; - n2 = n[2]; - n3 = n[3]; - n4 = n[4]; - - if ((XSTRNCMP(n4,"SHA256",6) == 0) || (XSTRNCMP(n3,"SHA256",6) == 0) || - (XSTRNCMP(n2,"SHA256",6) == 0) || (XSTRNCMP(n1,"SHA256",6) == 0)) - macStr = "SHA256"; - else if ((XSTRNCMP(n4,"SHA384",6) == 0) || - (XSTRNCMP(n3,"SHA384",6) == 0) || - (XSTRNCMP(n2,"SHA384",6) == 0) || - (XSTRNCMP(n1,"SHA384",6) == 0)) - macStr = "SHA384"; - else if ((XSTRNCMP(n4,"SHA",3) == 0) || (XSTRNCMP(n3,"SHA",3) == 0) || - (XSTRNCMP(n2,"SHA",3) == 0) || (XSTRNCMP(n1,"SHA",3) == 0) || - (XSTRNCMP(n1,"MD5",3) == 0)) - macStr = "SHA1"; - else if ((XSTRNCMP(n3,"GCM",3) == 0) || - (XSTRNCMP(n1,"CCM",3) == 0) || - (XSTRNCMP(n2,"CCM",3) == 0) || (XSTRNCMP(n3,"CCM",3) == 0) || - (XSTRNCMP(n1,"CHACHA20",8) == 0 && XSTRNCMP(n2,"POLY1305",8) == 0) || - (XSTRNCMP(n2,"CHACHA20",8) == 0 && XSTRNCMP(n3,"POLY1305",8) == 0)) - macStr = "AEAD"; - else - macStr = "unknown"; - - return macStr; -} - -/* Returns the number of bits based on the cipher enc string, or 0 on failure */ -int SetCipherBits(const char* enc) { - int ret = WOLFSSL_FAILURE; - - if ((XSTRNCMP(enc,"AESGCM(256)",11) == 0) || - (XSTRNCMP(enc,"AES(256)",8) == 0) || - (XSTRNCMP(enc,"CAMELLIA(256)",13) == 0) || - (XSTRNCMP(enc,"CHACHA20/POLY1305(256)",22) == 0)) - ret = 256; - else if - ((XSTRNCMP(enc,"3DES",4) == 0)) - ret = 168; - else if - ((XSTRNCMP(enc,"AESGCM(128)",11) == 0) || - (XSTRNCMP(enc,"AES(128)",8) == 0) || - (XSTRNCMP(enc,"CAMELLIA(128)",13) == 0) || - (XSTRNCMP(enc,"IDEA",4) == 0) || - (XSTRNCMP(enc,"RC4",3) == 0)) - ret = 128; - else if - ((XSTRNCMP(enc,"DES",3) == 0)) - ret = 56; - - return ret; -} -#endif /* WOLFSSL_QT || OPENSSL_ALL */ - -const char* GetCipherNameIana(const byte cipherSuite0, const byte cipherSuite) -{ -#ifndef NO_ERROR_STRINGS - int i; - const char* nameIana = "NONE"; - - for (i = 0; i < GetCipherNamesSize(); i++) { - if ((cipher_names[i].cipherSuite0 == cipherSuite0) && - (cipher_names[i].cipherSuite == cipherSuite)) { - nameIana = cipher_names[i].name_iana; - break; - } - } - return nameIana; -#else - (void)cipherSuite0; - (void)cipherSuite; - return NULL; -#endif -} - -const char* wolfSSL_get_cipher_name_internal(WOLFSSL* ssl) -{ - if (ssl == NULL) { - return NULL; - } - - return GetCipherNameInternal(ssl->options.cipherSuite0, ssl->options.cipherSuite); -} - -const char* wolfSSL_get_cipher_name_iana(WOLFSSL* ssl) -{ - if (ssl == NULL) { - return NULL; - } - - return GetCipherNameIana(ssl->options.cipherSuite0, ssl->options.cipherSuite); -} - -int GetCipherSuiteFromName(const char* name, byte* cipherSuite0, - byte* cipherSuite) -{ - int ret = BAD_FUNC_ARG; - int i; - unsigned long len = (unsigned long)XSTRLEN(name); - - for (i = 0; i < GetCipherNamesSize(); i++) { - if (XSTRNCMP(name, cipher_names[i].name, len) == 0) { - *cipherSuite0 = cipher_names[i].cipherSuite0; - *cipherSuite = cipher_names[i].cipherSuite; - ret = 0; - break; - } - } - - return ret; -} - -/** -Set the enabled cipher suites. - -@param [out] suites Suites structure. -@param [in] list List of cipher suites, only supports full name from - cipher_names[] delimited by ':'. - -@return true on success, else false. -*/ -int SetCipherList(WOLFSSL_CTX* ctx, Suites* suites, const char* list) -{ - int ret = 0; - int idx = 0; - int haveRSAsig = 0; - int haveECDSAsig = 0; - int haveAnon = 0; - const int suiteSz = GetCipherNamesSize(); - char* next = (char*)list; - - if (suites == NULL || list == NULL) { - WOLFSSL_MSG("SetCipherList parameter error"); - return 0; - } - - if (next[0] == 0 || XSTRNCMP(next, "ALL", 3) == 0 || - XSTRNCMP(next, "DEFAULT", 7) == 0) - return 1; /* wolfSSL default */ - - do { - char* current = next; - char name[MAX_SUITE_NAME + 1]; - int i; - word32 length; - - next = XSTRSTR(next, ":"); - length = min(sizeof(name), !next ? (word32)XSTRLEN(current) /* last */ - : (word32)(next - current)); - - XSTRNCPY(name, current, length); - name[(length == sizeof(name)) ? length - 1 : length] = 0; - - for (i = 0; i < suiteSz; i++) { - if (XSTRNCMP(name, cipher_names[i].name, sizeof(name)) == 0 - #ifndef NO_ERROR_STRINGS - || XSTRNCMP(name, cipher_names[i].name_iana, sizeof(name)) == 0 - #endif - ) { - #ifdef WOLFSSL_DTLS - /* don't allow stream ciphers with DTLS */ - if (ctx->method->version.major == DTLS_MAJOR) { - if (XSTRSTR(name, "RC4") || - XSTRSTR(name, "HC128") || - XSTRSTR(name, "RABBIT")) - { - WOLFSSL_MSG("Stream ciphers not supported with DTLS"); - continue; - } - - } - #endif /* WOLFSSL_DTLS */ - - if (idx + 1 >= WOLFSSL_MAX_SUITE_SZ) { - WOLFSSL_MSG("WOLFSSL_MAX_SUITE_SZ set too low"); - return 0; /* suites buffer not large enough, error out */ - } - - suites->suites[idx++] = cipher_names[i].cipherSuite0; - suites->suites[idx++] = cipher_names[i].cipherSuite; - /* The suites are either ECDSA, RSA, PSK, or Anon. The RSA - * suites don't necessarily have RSA in the name. */ - #ifdef WOLFSSL_TLS13 - if (cipher_names[i].cipherSuite0 == TLS13_BYTE || - (cipher_names[i].cipherSuite0 == ECC_BYTE && - (cipher_names[i].cipherSuite == TLS_SHA256_SHA256 || - cipher_names[i].cipherSuite == TLS_SHA384_SHA384))) { - #ifndef NO_RSA - haveRSAsig = 1; - #endif - #if defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_ED448) - haveECDSAsig = 1; - #endif - } - else - #endif - #if defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_ED448) - if ((haveECDSAsig == 0) && XSTRSTR(name, "ECDSA")) - haveECDSAsig = 1; - else - #endif - #ifdef HAVE_ANON - if (XSTRSTR(name, "ADH")) - haveAnon = 1; - else - #endif - if (haveRSAsig == 0 - #ifndef NO_PSK - && (XSTRSTR(name, "PSK") == NULL) - #endif - ) { - haveRSAsig = 1; - } - - ret = 1; /* found at least one */ - break; - } - } - } - while (next++); /* ++ needed to skip ':' */ - - if (ret) { - int keySz = 0; - #ifndef NO_CERTS - keySz = ctx->privateKeySz; - #endif - suites->setSuites = 1; - suites->suiteSz = (word16)idx; - InitSuitesHashSigAlgo(suites, haveECDSAsig, haveRSAsig, haveAnon, 1, - keySz); - } - - (void)ctx; - - return ret; -} - - -#if !defined(NO_WOLFSSL_SERVER) || !defined(NO_CERTS) -int PickHashSigAlgo(WOLFSSL* ssl, const byte* hashSigAlgo, word32 hashSigAlgoSz) -{ - word32 i; - int ret = MATCH_SUITE_ERROR; - - ssl->suites->sigAlgo = ssl->specs.sig_algo; - - /* set defaults */ - if (IsAtLeastTLSv1_3(ssl->version)) { - ssl->suites->hashAlgo = sha256_mac; - #ifndef NO_CERTS - ssl->suites->sigAlgo = ssl->buffers.keyType; - #endif - } -#ifndef WOLFSSL_NO_TLS12 - else if (IsAtLeastTLSv1_2(ssl)) { - #ifdef WOLFSSL_ALLOW_TLS_SHA1 - ssl->suites->hashAlgo = sha_mac; - #else - ssl->suites->hashAlgo = sha256_mac; - #endif - } - else { - ssl->suites->hashAlgo = sha_mac; - } -#endif - - if (hashSigAlgoSz == 0) - return 0; - - /* i+1 since peek a byte ahead for type */ - for (i = 0; (i+1) < hashSigAlgoSz; i += HELLO_EXT_SIGALGO_SZ) { - byte hashAlgo = 0, sigAlgo = 0; - - DecodeSigAlg(&hashSigAlgo[i], &hashAlgo, &sigAlgo); - #ifdef HAVE_ED25519 - if (ssl->pkCurveOID == ECC_ED25519_OID) { - if (sigAlgo != ed25519_sa_algo) - continue; - if (sigAlgo == ed25519_sa_algo && - ssl->suites->sigAlgo == ecc_dsa_sa_algo) { - ssl->suites->sigAlgo = sigAlgo; - ssl->suites->hashAlgo = sha512_mac; - ret = 0; - break; - } - } - #endif - #ifdef HAVE_ED448 - if (ssl->pkCurveOID == ECC_ED448_OID) { - if (sigAlgo != ed448_sa_algo) - continue; - - if (sigAlgo == ed448_sa_algo && - ssl->suites->sigAlgo == ecc_dsa_sa_algo) { - ssl->suites->sigAlgo = sigAlgo; - ssl->suites->hashAlgo = sha512_mac; - ret = 0; - break; - } - } - #endif - #if defined(WOLFSSL_TLS13) && defined(HAVE_ECC) - if (IsAtLeastTLSv1_3(ssl->version) && sigAlgo == ssl->suites->sigAlgo && - sigAlgo == ecc_dsa_sa_algo) { - - int digestSz = GetMacDigestSize(hashAlgo); - if (digestSz <= 0) - continue; - - /* TLS 1.3 signature algorithms for ECDSA match hash length with - * key size. - */ - if (digestSz != ssl->buffers.keySz) - continue; - - ssl->suites->hashAlgo = hashAlgo; - ssl->suites->sigAlgo = sigAlgo; - ret = 0; - break; /* done selected sig/hash algorithms */ - } - else - #endif - /* For ECDSA the `USE_ECDSA_KEYSZ_HASH_ALGO` build option will choose a hash - * algorithm that matches the ephemeral ECDHE key size or the next highest - * available. This workaround resolves issue with some peer's that do not - * properly support scenarios such as a P-256 key hashed with SHA512. - */ - #if defined(HAVE_ECC) && defined(USE_ECDSA_KEYSZ_HASH_ALGO) - if (sigAlgo == ssl->suites->sigAlgo && sigAlgo == ecc_dsa_sa_algo) { - int digestSz = GetMacDigestSize(hashAlgo); - if (digestSz <= 0) - continue; - - /* For ecc_dsa_sa_algo, pick hash algo that is curve size unless - algorithm in not compiled in, then choose next highest */ - if (digestSz == ssl->eccTempKeySz) { - ssl->suites->hashAlgo = hashAlgo; - ssl->suites->sigAlgo = sigAlgo; - #if defined(WOLFSSL_TLS13) || defined(HAVE_FFDHE) - ssl->namedGroup = 0; - #endif - ret = 0; - break; /* done selected sig/hash algorithms */ - } - /* not strong enough, so keep checking hashSigAlso list */ - if (digestSz < ssl->eccTempKeySz) - continue; - - /* mark as highest and check remainder of hashSigAlgo list */ - ssl->suites->hashAlgo = hashAlgo; - ssl->suites->sigAlgo = sigAlgo; - ret = 0; - } - else - #endif - #ifdef WC_RSA_PSS - if (IsAtLeastTLSv1_3(ssl->version) && - ssl->suites->sigAlgo == rsa_sa_algo && - sigAlgo != rsa_pss_sa_algo) { - continue; - } - else if (sigAlgo == ssl->suites->sigAlgo || - (sigAlgo == rsa_pss_sa_algo && - (ssl->suites->sigAlgo == rsa_sa_algo))) - #else - if (sigAlgo == ssl->suites->sigAlgo) - #endif - { - /* pick highest available between both server and client */ - switch (hashAlgo) { - case sha_mac: - #ifdef WOLFSSL_SHA224 - case sha224_mac: - #endif - #ifndef NO_SHA256 - case sha256_mac: - #endif - #ifdef WOLFSSL_SHA384 - case sha384_mac: - #endif - #ifdef WOLFSSL_SHA512 - case sha512_mac: - #endif - /* not strong enough, so keep checking hashSigAlso list */ - if (hashAlgo < ssl->suites->hashAlgo) { - ret = 0; - continue; - } - /* mark as highest and check remainder of hashSigAlgo list */ - ssl->suites->hashAlgo = hashAlgo; - ssl->suites->sigAlgo = sigAlgo; - break; - default: - continue; - } - ret = 0; - break; - } -#if defined(WOLFSSL_TLS13) - else if (ssl->specs.sig_algo == 0 && IsAtLeastTLSv1_3(ssl->version)) { - } -#endif - else if (ssl->specs.sig_algo == 0) - { - ssl->suites->hashAlgo = ssl->specs.mac_algorithm; - ret = 0; - } - } - - return ret; -} -#endif /* !defined(NO_WOLFSSL_SERVER) || !defined(NO_CERTS) */ - -#if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - - /* Initialize HandShakeInfo */ - void InitHandShakeInfo(HandShakeInfo* info, WOLFSSL* ssl) - { - int i; - - info->ssl = ssl; - info->cipherName[0] = 0; - for (i = 0; i < MAX_PACKETS_HANDSHAKE; i++) - info->packetNames[i][0] = 0; - info->numberPackets = 0; - info->negotiationError = 0; - } - - /* Set Final HandShakeInfo parameters */ - void FinishHandShakeInfo(HandShakeInfo* info) - { - int i; - int sz = GetCipherNamesSize(); - - for (i = 0; i < sz; i++) - if (info->ssl->options.cipherSuite == - (byte)cipher_names[i].cipherSuite) { - if (info->ssl->options.cipherSuite0 == ECC_BYTE) - continue; /* ECC suites at end */ - XSTRNCPY(info->cipherName, cipher_names[i].name, MAX_CIPHERNAME_SZ); - info->cipherName[MAX_CIPHERNAME_SZ] = '\0'; - break; - } - - /* error max and min are negative numbers */ - if (info->ssl->error <= MIN_PARAM_ERR && info->ssl->error >= MAX_PARAM_ERR) - info->negotiationError = info->ssl->error; - } - - - /* Add name to info packet names, increase packet name count */ - void AddPacketName(WOLFSSL* ssl, const char* name) - { - #ifdef WOLFSSL_CALLBACKS - HandShakeInfo* info = &ssl->handShakeInfo; - if (info->numberPackets < MAX_PACKETS_HANDSHAKE) { - char* packetName = info->packetNames[info->numberPackets]; - XSTRNCPY(packetName, name, MAX_PACKETNAME_SZ); - packetName[MAX_PACKETNAME_SZ] = '\0'; - info->numberPackets++; - } - #endif - (void)ssl; - (void)name; - } - - - #ifdef WOLFSSL_CALLBACKS - /* Initialize TimeoutInfo */ - void InitTimeoutInfo(TimeoutInfo* info) - { - int i; - - info->timeoutName[0] = 0; - info->flags = 0; - - for (i = 0; i < MAX_PACKETS_HANDSHAKE; i++) { - info->packets[i].packetName[0] = 0; - info->packets[i].timestamp.tv_sec = 0; - info->packets[i].timestamp.tv_usec = 0; - info->packets[i].bufferValue = 0; - info->packets[i].valueSz = 0; - } - info->numberPackets = 0; - info->timeoutValue.tv_sec = 0; - info->timeoutValue.tv_usec = 0; - } - - - /* Free TimeoutInfo */ - void FreeTimeoutInfo(TimeoutInfo* info, void* heap) - { - int i; - (void)heap; - for (i = 0; i < MAX_PACKETS_HANDSHAKE; i++) - if (info->packets[i].bufferValue) { - XFREE(info->packets[i].bufferValue, heap, DYNAMIC_TYPE_INFO); - info->packets[i].bufferValue = 0; - } - - } - - /* Add packet name to previously added packet info */ - void AddLateName(const char* name, TimeoutInfo* info) - { - /* make sure we have a valid previous one */ - if (info->numberPackets > 0 && info->numberPackets < - MAX_PACKETS_HANDSHAKE) { - char* packetName = info->packets[info->numberPackets-1].packetName; - XSTRNCPY(packetName, name, MAX_PACKETNAME_SZ); - packetName[MAX_PACKETNAME_SZ] = '\0'; - } - } - - /* Add record header to previously added packet info */ - void AddLateRecordHeader(const RecordLayerHeader* rl, TimeoutInfo* info) - { - /* make sure we have a valid previous one */ - if (info->numberPackets > 0 && info->numberPackets < - MAX_PACKETS_HANDSHAKE) { - if (info->packets[info->numberPackets - 1].bufferValue) - XMEMCPY(info->packets[info->numberPackets - 1].bufferValue, rl, - RECORD_HEADER_SZ); - else - XMEMCPY(info->packets[info->numberPackets - 1].value, rl, - RECORD_HEADER_SZ); - } - } - - #endif /* WOLFSSL_CALLBACKS */ - - - /* Add PacketInfo to TimeoutInfo - * - * ssl WOLFSSL structure sending or receiving packet - * name name of packet being sent - * type type of packet being sent - * data data bing sent with packet - * sz size of data buffer - * written 1 if this packet is being written to wire, 0 if being read - * heap custom heap to use for mallocs/frees - */ - void AddPacketInfo(WOLFSSL* ssl, const char* name, int type, - const byte* data, int sz, int written, void* heap) - { - #ifdef WOLFSSL_CALLBACKS - TimeoutInfo* info = &ssl->timeoutInfo; - - if (info->numberPackets < (MAX_PACKETS_HANDSHAKE - 1)) { - WOLFSSL_TIMEVAL currTime; - - /* may add name after */ - if (name) { - char* packetName = info->packets[info->numberPackets].packetName; - XSTRNCPY(packetName, name, MAX_PACKETNAME_SZ); - packetName[MAX_PACKETNAME_SZ] = '\0'; - } - - /* add data, put in buffer if bigger than static buffer */ - info->packets[info->numberPackets].valueSz = sz; - if (sz < MAX_VALUE_SZ) - XMEMCPY(info->packets[info->numberPackets].value, data, sz); - else { - info->packets[info->numberPackets].bufferValue = - (byte*)XMALLOC(sz, heap, DYNAMIC_TYPE_INFO); - if (!info->packets[info->numberPackets].bufferValue) - /* let next alloc catch, just don't fill, not fatal here */ - info->packets[info->numberPackets].valueSz = 0; - else - XMEMCPY(info->packets[info->numberPackets].bufferValue, - data, sz); - } - gettimeofday(&currTime, 0); - info->packets[info->numberPackets].timestamp.tv_sec = - currTime.tv_sec; - info->packets[info->numberPackets].timestamp.tv_usec = - currTime.tv_usec; - info->numberPackets++; - } - #endif /* WOLFSSL_CALLBACKS */ - #ifdef OPENSSL_EXTRA - if (ssl->protoMsgCb != NULL && sz > RECORD_HEADER_SZ) { - /* version from hex to dec 16 is 16^1, 256 from 16^2 and - 4096 from 16^3 */ - int version = (ssl->version.minor & 0X0F) + - (ssl->version.minor & 0xF0) * 16 + - (ssl->version.major & 0X0F) * 256 + - (ssl->version.major & 0xF0) * 4096; - - ssl->protoMsgCb(written, version, type, - (const void *)(data + RECORD_HEADER_SZ), - (size_t)(sz - RECORD_HEADER_SZ), - ssl, ssl->protoMsgCtx); - } - #endif /* OPENSSL_EXTRA */ - (void)written; - (void)name; - (void)heap; - (void)type; - (void)ssl; - } - -#endif /* WOLFSSL_CALLBACKS */ - -#if !defined(NO_CERTS) - -/* Decode the private key - RSA/ECC/Ed25519/Ed448 - and creates a key object. - * The signature type is set as well. - * The maximum length of a signature is returned. - * - * ssl The SSL/TLS object. - * length The length of a signature. - * returns 0 on success, otherwise failure. - */ -int DecodePrivateKey(WOLFSSL *ssl, word16* length) -{ - int ret = BAD_FUNC_ARG; - int keySz; - word32 idx; - -#ifdef HAVE_PK_CALLBACKS - /* allow no private key if using PK callbacks and CB is set */ - if (wolfSSL_IsPrivatePkSet(ssl)) { - *length = GetPrivateKeySigSize(ssl); - return 0; - } - else -#endif - - /* make sure private key exists */ - if (ssl->buffers.key == NULL || ssl->buffers.key->buffer == NULL) { - WOLFSSL_MSG("Private key missing!"); - ERROR_OUT(NO_PRIVATE_KEY, exit_dpk); - } - -#ifdef HAVE_PKCS11 - if (ssl->buffers.keyDevId != INVALID_DEVID && ssl->buffers.keyId) { - if (ssl->buffers.keyType == rsa_sa_algo) - ssl->hsType = DYNAMIC_TYPE_RSA; - else if (ssl->buffers.keyType == ecc_dsa_sa_algo) - ssl->hsType = DYNAMIC_TYPE_ECC; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_dpk; - } - - if (ssl->buffers.keyType == rsa_sa_algo) { - #ifndef NO_RSA - ret = wc_InitRsaKey_Id((RsaKey*)ssl->hsKey, - ssl->buffers.key->buffer, ssl->buffers.key->length, - ssl->heap, ssl->buffers.keyDevId); - if (ret == 0) { - if (ssl->buffers.keySz < ssl->options.minRsaKeySz) { - WOLFSSL_MSG("RSA key size too small"); - ERROR_OUT(RSA_KEY_SIZE_E, exit_dpk); - } - - /* Return the maximum signature length. */ - *length = (word16)ssl->buffers.keySz; - } - #else - ret = NOT_COMPILED_IN; - #endif - } - else if (ssl->buffers.keyType == ecc_dsa_sa_algo) { - #ifdef HAVE_ECC - ret = wc_ecc_init_id((ecc_key*)ssl->hsKey, ssl->buffers.key->buffer, - ssl->buffers.key->length, ssl->heap, - ssl->buffers.keyDevId); - if (ret == 0) { - if (ssl->buffers.keySz < ssl->options.minEccKeySz) { - WOLFSSL_MSG("ECC key size too small"); - ERROR_OUT(ECC_KEY_SIZE_E, exit_dpk); - } - - /* Return the maximum signature length. */ - *length = (word16)wc_ecc_sig_size_calc(ssl->buffers.keySz); - } - #else - ret = NOT_COMPILED_IN; - #endif - } - goto exit_dpk; - } -#endif - -#ifndef NO_RSA - if (ssl->buffers.keyType == rsa_sa_algo || ssl->buffers.keyType == 0) { - ssl->hsType = DYNAMIC_TYPE_RSA; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_dpk; - } - - WOLFSSL_MSG("Trying RSA private key"); - - /* Set start of data to beginning of buffer. */ - idx = 0; - /* Decode the key assuming it is an RSA private key. */ - ret = wc_RsaPrivateKeyDecode(ssl->buffers.key->buffer, &idx, - (RsaKey*)ssl->hsKey, ssl->buffers.key->length); - if (ret == 0) { - WOLFSSL_MSG("Using RSA private key"); - - /* It worked so check it meets minimum key size requirements. */ - keySz = wc_RsaEncryptSize((RsaKey*)ssl->hsKey); - if (keySz < 0) { /* check if keySz has error case */ - ERROR_OUT(keySz, exit_dpk); - } - - if (keySz < ssl->options.minRsaKeySz) { - WOLFSSL_MSG("RSA key size too small"); - ERROR_OUT(RSA_KEY_SIZE_E, exit_dpk); - } - - /* Return the maximum signature length. */ - *length = (word16)keySz; - - goto exit_dpk; - } - } -#endif /* !NO_RSA */ - -#ifdef HAVE_ECC -#ifndef NO_RSA - FreeKey(ssl, ssl->hsType, (void**)&ssl->hsKey); -#endif /* !NO_RSA */ - - if (ssl->buffers.keyType == ecc_dsa_sa_algo || ssl->buffers.keyType == 0) { - ssl->hsType = DYNAMIC_TYPE_ECC; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_dpk; - } - - #ifndef NO_RSA - WOLFSSL_MSG("Trying ECC private key, RSA didn't work"); - #else - WOLFSSL_MSG("Trying ECC private key"); - #endif - - /* Set start of data to beginning of buffer. */ - idx = 0; - /* Decode the key assuming it is an ECC private key. */ - ret = wc_EccPrivateKeyDecode(ssl->buffers.key->buffer, &idx, - (ecc_key*)ssl->hsKey, - ssl->buffers.key->length); - if (ret == 0) { - WOLFSSL_MSG("Using ECC private key"); - - /* Check it meets the minimum ECC key size requirements. */ - keySz = wc_ecc_size((ecc_key*)ssl->hsKey); - if (keySz < ssl->options.minEccKeySz) { - WOLFSSL_MSG("ECC key size too small"); - ERROR_OUT(ECC_KEY_SIZE_E, exit_dpk); - } - - /* Return the maximum signature length. */ - *length = (word16)wc_ecc_sig_size((ecc_key*)ssl->hsKey); - - goto exit_dpk; - } - } -#endif -#ifdef HAVE_ED25519 - #if !defined(NO_RSA) || defined(HAVE_ECC) - FreeKey(ssl, ssl->hsType, (void**)&ssl->hsKey); - #endif - - if (ssl->buffers.keyType == ed25519_sa_algo || ssl->buffers.keyType == 0) { - ssl->hsType = DYNAMIC_TYPE_ED25519; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_dpk; - } - - #ifdef HAVE_ECC - WOLFSSL_MSG("Trying ED25519 private key, ECC didn't work"); - #elif !defined(NO_RSA) - WOLFSSL_MSG("Trying ED25519 private key, RSA didn't work"); - #else - WOLFSSL_MSG("Trying ED25519 private key"); - #endif - - /* Set start of data to beginning of buffer. */ - idx = 0; - /* Decode the key assuming it is an ED25519 private key. */ - ret = wc_Ed25519PrivateKeyDecode(ssl->buffers.key->buffer, &idx, - (ed25519_key*)ssl->hsKey, - ssl->buffers.key->length); - if (ret == 0) { - WOLFSSL_MSG("Using ED25519 private key"); - - /* Check it meets the minimum ECC key size requirements. */ - if (ED25519_KEY_SIZE < ssl->options.minEccKeySz) { - WOLFSSL_MSG("ED25519 key size too small"); - ERROR_OUT(ECC_KEY_SIZE_E, exit_dpk); - } - - /* Return the maximum signature length. */ - *length = ED25519_SIG_SIZE; - - goto exit_dpk; - } - } -#endif /* HAVE_ED25519 */ -#ifdef HAVE_ED448 - #if !defined(NO_RSA) || defined(HAVE_ECC) - FreeKey(ssl, ssl->hsType, (void**)&ssl->hsKey); - #endif - - if (ssl->buffers.keyType == ed448_sa_algo || ssl->buffers.keyType == 0) { - ssl->hsType = DYNAMIC_TYPE_ED448; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_dpk; - } - - #ifdef HAVE_ED25519 - WOLFSSL_MSG("Trying ED448 private key, ED25519 didn't work"); - #elif defined(HAVE_ECC) - WOLFSSL_MSG("Trying ED448 private key, ECC didn't work"); - #elif !defined(NO_RSA) - WOLFSSL_MSG("Trying ED448 private key, RSA didn't work"); - #else - WOLFSSL_MSG("Trying ED447 private key"); - #endif - - /* Set start of data to beginning of buffer. */ - idx = 0; - /* Decode the key assuming it is an ED448 private key. */ - ret = wc_Ed448PrivateKeyDecode(ssl->buffers.key->buffer, &idx, - (ed448_key*)ssl->hsKey, - ssl->buffers.key->length); - if (ret == 0) { - WOLFSSL_MSG("Using ED448 private key"); - - /* Check it meets the minimum ECC key size requirements. */ - if (ED448_KEY_SIZE < ssl->options.minEccKeySz) { - WOLFSSL_MSG("ED448 key size too small"); - ERROR_OUT(ECC_KEY_SIZE_E, exit_dpk); - } - - /* Return the maximum signature length. */ - *length = ED448_SIG_SIZE; - - goto exit_dpk; - } - } -#endif /* HAVE_ED448 */ - - (void)idx; - (void)keySz; - (void)length; -exit_dpk: - return ret; -} - -#endif /* WOLFSSL_TLS13 || !NO_WOLFSSL_CLIENT */ - -/* client only parts */ -#ifndef NO_WOLFSSL_CLIENT - -#ifndef WOLFSSL_NO_TLS12 - - /* handle generation of client_hello (1) */ - int SendClientHello(WOLFSSL* ssl) - { - byte *output; - word32 length, idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - int sendSz; - int idSz = ssl->options.resuming - ? ssl->session.sessionIDSz - : 0; - int ret; - word16 extSz = 0; - -#ifdef WOLFSSL_TLS13 - if (IsAtLeastTLSv1_3(ssl->version)) - return SendTls13ClientHello(ssl); -#endif - - WOLFSSL_START(WC_FUNC_CLIENT_HELLO_SEND); - WOLFSSL_ENTER("SendClientHello"); - - if (ssl->suites == NULL) { - WOLFSSL_MSG("Bad suites pointer in SendClientHello"); - return SUITES_ERROR; - } - -#ifdef HAVE_SESSION_TICKET - if (ssl->options.resuming && ssl->session.ticketLen > 0) { - SessionTicket* ticket; - - ticket = TLSX_SessionTicket_Create(0, ssl->session.ticket, - ssl->session.ticketLen, ssl->heap); - if (ticket == NULL) return MEMORY_E; - - ret = TLSX_UseSessionTicket(&ssl->extensions, ticket, ssl->heap); - if (ret != WOLFSSL_SUCCESS) { - TLSX_SessionTicket_Free(ticket, ssl->heap); - return ret; - } - - idSz = 0; - } -#endif - length = VERSION_SZ + RAN_LEN - + idSz + ENUM_LEN - + ssl->suites->suiteSz + SUITE_LEN - + COMP_LEN + ENUM_LEN; - -#ifdef HAVE_TLS_EXTENSIONS - /* auto populate extensions supported unless user defined */ - if ((ret = TLSX_PopulateExtensions(ssl, 0)) != 0) - return ret; - #ifdef HAVE_QSH - if (QSH_Init(ssl) != 0) - return MEMORY_E; - #endif - extSz = 0; - ret = TLSX_GetRequestSize(ssl, client_hello, &extSz); - if (ret != 0) - return ret; - length += extSz; -#else - if (IsAtLeastTLSv1_2(ssl) && ssl->suites->hashSigAlgoSz) - extSz += HELLO_EXT_SZ + HELLO_EXT_SIGALGO_SZ - + ssl->suites->hashSigAlgoSz; -#ifdef HAVE_EXTENDED_MASTER - if (ssl->options.haveEMS) - extSz += HELLO_EXT_SZ; -#endif - if (extSz != 0) - length += extSz + HELLO_EXT_SZ_SZ; -#endif - sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ; - -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - length += ENUM_LEN; /* cookie */ - if (ssl->arrays->cookieSz != 0) length += ssl->arrays->cookieSz; - sendSz = length + DTLS_HANDSHAKE_HEADER_SZ + DTLS_RECORD_HEADER_SZ; - idx += DTLS_HANDSHAKE_EXTRA + DTLS_RECORD_EXTRA; - } -#endif - - if (IsEncryptionOn(ssl, 1)) - sendSz += MAX_MSG_EXTRA; - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) - return ret; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(output, length, client_hello, ssl); - - /* client hello, first version */ - output[idx++] = ssl->version.major; - output[idx++] = ssl->version.minor; - ssl->chVersion = ssl->version; /* store in case changed */ - - /* then random */ - if (ssl->options.connectState == CONNECT_BEGIN) { - ret = wc_RNG_GenerateBlock(ssl->rng, output + idx, RAN_LEN); - if (ret != 0) - return ret; - - /* store random */ - XMEMCPY(ssl->arrays->clientRandom, output + idx, RAN_LEN); - } else { -#ifdef WOLFSSL_DTLS - /* send same random on hello again */ - XMEMCPY(output + idx, ssl->arrays->clientRandom, RAN_LEN); -#endif - } - idx += RAN_LEN; - - /* then session id */ - output[idx++] = (byte)idSz; - if (idSz) { - XMEMCPY(output + idx, ssl->session.sessionID, - ssl->session.sessionIDSz); - idx += ssl->session.sessionIDSz; - } - - /* then DTLS cookie */ -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - byte cookieSz = ssl->arrays->cookieSz; - - output[idx++] = cookieSz; - if (cookieSz) { - XMEMCPY(&output[idx], ssl->arrays->cookie, cookieSz); - idx += cookieSz; - } - } -#endif - /* then cipher suites */ - c16toa(ssl->suites->suiteSz, output + idx); - idx += OPAQUE16_LEN; - XMEMCPY(output + idx, &ssl->suites->suites, ssl->suites->suiteSz); - idx += ssl->suites->suiteSz; - - /* last, compression */ - output[idx++] = COMP_LEN; - if (ssl->options.usingCompression) - output[idx++] = ZLIB_COMPRESSION; - else - output[idx++] = NO_COMPRESSION; - -#ifdef HAVE_TLS_EXTENSIONS - extSz = 0; - ret = TLSX_WriteRequest(ssl, output + idx, client_hello, &extSz); - if (ret != 0) - return ret; - idx += extSz; - - (void)idx; /* suppress analyzer warning, keep idx current */ -#else - if (extSz != 0) { - c16toa(extSz, output + idx); - idx += HELLO_EXT_SZ_SZ; - - if (IsAtLeastTLSv1_2(ssl)) { - if (ssl->suites->hashSigAlgoSz) { - word16 i; - /* extension type */ - c16toa(HELLO_EXT_SIG_ALGO, output + idx); - idx += HELLO_EXT_TYPE_SZ; - /* extension data length */ - c16toa(HELLO_EXT_SIGALGO_SZ + ssl->suites->hashSigAlgoSz, - output + idx); - idx += HELLO_EXT_SZ_SZ; - /* sig algos length */ - c16toa(ssl->suites->hashSigAlgoSz, output + idx); - idx += HELLO_EXT_SIGALGO_SZ; - for (i=0; i < ssl->suites->hashSigAlgoSz; i++, idx++) { - output[idx] = ssl->suites->hashSigAlgo[i]; - } - } - } -#ifdef HAVE_EXTENDED_MASTER - if (ssl->options.haveEMS) { - c16toa(HELLO_EXT_EXTMS, output + idx); - idx += HELLO_EXT_TYPE_SZ; - c16toa(0, output + idx); - idx += HELLO_EXT_SZ_SZ; - } -#endif - } -#endif - - if (IsEncryptionOn(ssl, 1)) { - byte* input; - int inputSz = idx - RECORD_HEADER_SZ; /* build msg adds rec hdr */ - - input = (byte*)XMALLOC(inputSz, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - if (input == NULL) - return MEMORY_E; - - XMEMCPY(input, output + RECORD_HEADER_SZ, inputSz); - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - handshake, 1, 0, 0); - XFREE(input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - - if (sendSz < 0) - return sendSz; - } else { - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - if ((ret = DtlsMsgPoolSave(ssl, output, sendSz)) != 0) - return ret; - } - if (ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - #endif - ret = HashOutput(ssl, output, sendSz, 0); - if (ret != 0) - return ret; - } - - ssl->options.clientState = CLIENT_HELLO_COMPLETE; -#ifdef OPENSSL_EXTRA - ssl->cbmode = SSL_CB_MODE_WRITE; - if (ssl->CBIS != NULL) - ssl->CBIS(ssl, SSL_CB_CONNECT_LOOP, SSL_SUCCESS); -#endif - -#if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) AddPacketName(ssl, "ClientHello"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "ClientHello", handshake, output, sendSz, - WRITE_PROTO, ssl->heap); -#endif - - ssl->buffers.outputBuffer.length += sendSz; - - ret = SendBuffered(ssl); - - WOLFSSL_LEAVE("SendClientHello", ret); - WOLFSSL_END(WC_FUNC_CLIENT_HELLO_SEND); - - return ret; - } - - - /* handle processing of DTLS hello_verify_request (3) */ - static int DoHelloVerifyRequest(WOLFSSL* ssl, const byte* input, - word32* inOutIdx, word32 size) - { - ProtocolVersion pv; - byte cookieSz; - word32 begin = *inOutIdx; - -#ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) AddPacketName(ssl, "HelloVerifyRequest"); - if (ssl->toInfoOn) AddLateName("HelloVerifyRequest", &ssl->timeoutInfo); -#endif - -#ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - DtlsMsgPoolReset(ssl); - } -#endif - - if (OPAQUE16_LEN + OPAQUE8_LEN > size) - return BUFFER_ERROR; - - XMEMCPY(&pv, input + *inOutIdx, OPAQUE16_LEN); - *inOutIdx += OPAQUE16_LEN; - - if (pv.major != DTLS_MAJOR || - (pv.minor != DTLS_MINOR && pv.minor != DTLSv1_2_MINOR)) - return VERSION_ERROR; - - cookieSz = input[(*inOutIdx)++]; - - if (cookieSz) { - if ((*inOutIdx - begin) + cookieSz > size) - return BUFFER_ERROR; - -#ifdef WOLFSSL_DTLS - if (cookieSz <= MAX_COOKIE_LEN) { - XMEMCPY(ssl->arrays->cookie, input + *inOutIdx, cookieSz); - ssl->arrays->cookieSz = cookieSz; - } -#endif - *inOutIdx += cookieSz; - } - - ssl->options.serverState = SERVER_HELLOVERIFYREQUEST_COMPLETE; - return 0; - } - - - static WC_INLINE int DSH_CheckSessionId(WOLFSSL* ssl) - { - int ret = 0; - -#ifdef HAVE_SECRET_CALLBACK - /* If a session secret callback exists, we are using that - * key instead of the saved session key. */ - ret = ret || (ssl->sessionSecretCb != NULL); -#endif - -#ifdef HAVE_SESSION_TICKET - /* server may send blank ticket which may not be expected to indicate - * existing one ok but will also be sending a new one */ - ret = ret || (ssl->session.ticketLen > 0); -#endif - - ret = ret || - (ssl->options.haveSessionId && XMEMCMP(ssl->arrays->sessionID, - ssl->session.sessionID, ID_LEN) == 0); - - return ret; - } - - /* Check the version in the received message is valid and set protocol - * version to use. - * - * ssl The SSL/TLS object. - * pv The protocol version from the packet. - * returns 0 on success, otherwise failure. - */ - int CheckVersion(WOLFSSL *ssl, ProtocolVersion pv) - { - #ifdef WOLFSSL_TLS13_DRAFT - if (pv.major == TLS_DRAFT_MAJOR) { - pv.major = SSLv3_MAJOR; - pv.minor = TLSv1_3_MINOR; - } - #endif - - #ifdef OPENSSL_EXTRA - if (ssl->CBIS != NULL) { - ssl->CBIS(ssl, SSL_CB_HANDSHAKE_START, SSL_SUCCESS); - } - #endif - - if (pv.minor > ssl->version.minor) { - WOLFSSL_MSG("Server using higher version, fatal error"); - return VERSION_ERROR; - } - if (pv.minor < ssl->version.minor) { - WOLFSSL_MSG("server using lower version"); - - /* Check for downgrade attack. */ - if (!ssl->options.downgrade) { - WOLFSSL_MSG("\tno downgrade allowed, fatal error"); - return VERSION_ERROR; - } - if (pv.minor < ssl->options.minDowngrade) { - WOLFSSL_MSG("\tversion below minimum allowed, fatal error"); - return VERSION_ERROR; - } - - #ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->secure_renegotiation && - ssl->secure_renegotiation->enabled && - ssl->options.handShakeDone) { - WOLFSSL_MSG("Server changed version during scr"); - return VERSION_ERROR; - } - #endif - - /* Checks made - OK to downgrade. */ - if (pv.minor == SSLv3_MINOR) { - /* turn off tls */ - WOLFSSL_MSG("\tdowngrading to SSLv3"); - ssl->options.tls = 0; - ssl->options.tls1_1 = 0; - ssl->version.minor = SSLv3_MINOR; - } - else if (pv.minor == TLSv1_MINOR) { - /* turn off tls 1.1+ */ - WOLFSSL_MSG("\tdowngrading to TLSv1"); - ssl->options.tls1_1 = 0; - ssl->version.minor = TLSv1_MINOR; - } - else if (pv.minor == TLSv1_1_MINOR) { - WOLFSSL_MSG("\tdowngrading to TLSv1.1"); - ssl->version.minor = TLSv1_1_MINOR; - } - else if (pv.minor == TLSv1_2_MINOR) { - WOLFSSL_MSG(" downgrading to TLSv1.2"); - ssl->version.minor = TLSv1_2_MINOR; - } - } - -#ifdef OPENSSL_EXTRA - /* check if option is set to not allow the current version - * set from either wolfSSL_set_options or wolfSSL_CTX_set_options */ - if (!ssl->options.dtls && ssl->options.downgrade && - ssl->options.mask > 0) { - if (ssl->version.minor == TLSv1_2_MINOR && - (ssl->options.mask & SSL_OP_NO_TLSv1_2) == SSL_OP_NO_TLSv1_2) { - WOLFSSL_MSG("\tOption set to not allow TLSv1.2, Downgrading"); - ssl->version.minor = TLSv1_1_MINOR; - } - if (ssl->version.minor == TLSv1_1_MINOR && - (ssl->options.mask & SSL_OP_NO_TLSv1_1) == SSL_OP_NO_TLSv1_1) { - WOLFSSL_MSG("\tOption set to not allow TLSv1.1, Downgrading"); - ssl->options.tls1_1 = 0; - ssl->version.minor = TLSv1_MINOR; - } - if (ssl->version.minor == TLSv1_MINOR && - (ssl->options.mask & SSL_OP_NO_TLSv1) == SSL_OP_NO_TLSv1) { - WOLFSSL_MSG("\tOption set to not allow TLSv1, Downgrading"); - ssl->options.tls = 0; - ssl->options.tls1_1 = 0; - ssl->version.minor = SSLv3_MINOR; - } - if (ssl->version.minor == SSLv3_MINOR && - (ssl->options.mask & SSL_OP_NO_SSLv3) == SSL_OP_NO_SSLv3) { - WOLFSSL_MSG("\tError, option set to not allow SSLv3"); - return VERSION_ERROR; - } - - if (ssl->version.minor < ssl->options.minDowngrade) { - WOLFSSL_MSG("\tversion below minimum allowed, fatal error"); - return VERSION_ERROR; - } - } -#endif - - return 0; - } - - /* handle processing of server_hello (2) */ - int DoServerHello(WOLFSSL* ssl, const byte* input, word32* inOutIdx, - word32 helloSz) - { - byte cs0; /* cipher suite bytes 0, 1 */ - byte cs1; - ProtocolVersion pv; - byte compression; - word32 i = *inOutIdx; - word32 begin = i; - int ret; - - WOLFSSL_START(WC_FUNC_SERVER_HELLO_DO); - WOLFSSL_ENTER("DoServerHello"); - -#ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) AddPacketName(ssl, "ServerHello"); - if (ssl->toInfoOn) AddLateName("ServerHello", &ssl->timeoutInfo); -#endif - - /* protocol version, random and session id length check */ - if (OPAQUE16_LEN + RAN_LEN + OPAQUE8_LEN > helloSz) - return BUFFER_ERROR; - - /* protocol version */ - XMEMCPY(&pv, input + i, OPAQUE16_LEN); - i += OPAQUE16_LEN; - - ret = CheckVersion(ssl, pv); - if (ret != 0) - return ret; - -#ifdef WOLFSSL_TLS13 - if (IsAtLeastTLSv1_3(pv)) { - byte type = server_hello; - return DoTls13ServerHello(ssl, input, inOutIdx, helloSz, &type); - } -#endif - - /* random */ - XMEMCPY(ssl->arrays->serverRandom, input + i, RAN_LEN); - i += RAN_LEN; - - /* session id */ - ssl->arrays->sessionIDSz = input[i++]; - - if (ssl->arrays->sessionIDSz > ID_LEN) { - WOLFSSL_MSG("Invalid session ID size"); - ssl->arrays->sessionIDSz = 0; - return BUFFER_ERROR; - } - else if (ssl->arrays->sessionIDSz) { - if ((i - begin) + ssl->arrays->sessionIDSz > helloSz) - return BUFFER_ERROR; - - XMEMCPY(ssl->arrays->sessionID, input + i, - ssl->arrays->sessionIDSz); - i += ssl->arrays->sessionIDSz; - ssl->options.haveSessionId = 1; - } - - - /* suite and compression */ - if ((i - begin) + OPAQUE16_LEN + OPAQUE8_LEN > helloSz) - return BUFFER_ERROR; - - cs0 = input[i++]; - cs1 = input[i++]; - -#ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->secure_renegotiation && ssl->secure_renegotiation->enabled && - ssl->options.handShakeDone) { - if (ssl->options.cipherSuite0 != cs0 || - ssl->options.cipherSuite != cs1) { - WOLFSSL_MSG("Server changed cipher suite during scr"); - return MATCH_SUITE_ERROR; - } - } -#endif - - ssl->options.cipherSuite0 = cs0; - ssl->options.cipherSuite = cs1; - compression = input[i++]; - -#ifndef WOLFSSL_NO_STRICT_CIPHER_SUITE - { - word32 idx, found = 0; - /* confirm server_hello cipher suite is one sent in client_hello */ - for (idx = 0; idx < ssl->suites->suiteSz; idx += 2) { - if (ssl->suites->suites[idx] == cs0 && - ssl->suites->suites[idx+1] == cs1) { - found = 1; - break; - } - } - if (!found) { - WOLFSSL_MSG("ServerHello did not use cipher suite from ClientHello"); - return MATCH_SUITE_ERROR; - } - } -#endif /* !WOLFSSL_NO_STRICT_CIPHER_SUITE */ - - if (compression != NO_COMPRESSION && !ssl->options.usingCompression) { - WOLFSSL_MSG("Server forcing compression w/o support"); - return COMPRESSION_ERROR; - } - - if (compression != ZLIB_COMPRESSION && ssl->options.usingCompression) { - WOLFSSL_MSG("Server refused compression, turning off"); - ssl->options.usingCompression = 0; /* turn off if server refused */ - } - - *inOutIdx = i; - -#ifdef HAVE_TLS_EXTENSIONS - if ( (i - begin) < helloSz) { - if (TLSX_SupportExtensions(ssl)) { - word16 totalExtSz; - - if ((i - begin) + OPAQUE16_LEN > helloSz) - return BUFFER_ERROR; - - ato16(&input[i], &totalExtSz); - i += OPAQUE16_LEN; - - if ((i - begin) + totalExtSz > helloSz) - return BUFFER_ERROR; - - if ((ret = TLSX_Parse(ssl, (byte *) input + i, totalExtSz, - server_hello, NULL))) - return ret; - - i += totalExtSz; - *inOutIdx = i; - } - else - *inOutIdx = begin + helloSz; /* skip extensions */ - } - else - ssl->options.haveEMS = 0; /* If no extensions, no EMS */ -#else - { - int allowExt = 0; - byte pendingEMS = 0; - - if ( (i - begin) < helloSz) { - if (ssl->version.major == SSLv3_MAJOR && - ssl->version.minor >= TLSv1_MINOR) { - - allowExt = 1; - } -#ifdef WOLFSSL_DTLS - if (ssl->version.major == DTLS_MAJOR) - allowExt = 1; -#endif - - if (allowExt) { - word16 totalExtSz; - - if ((i - begin) + OPAQUE16_LEN > helloSz) - return BUFFER_ERROR; - - ato16(&input[i], &totalExtSz); - i += OPAQUE16_LEN; - - if ((i - begin) + totalExtSz > helloSz) - return BUFFER_ERROR; - - while (totalExtSz) { - word16 extId, extSz; - - if (OPAQUE16_LEN + OPAQUE16_LEN > totalExtSz) - return BUFFER_ERROR; - - ato16(&input[i], &extId); - i += OPAQUE16_LEN; - ato16(&input[i], &extSz); - i += OPAQUE16_LEN; - - if (OPAQUE16_LEN + OPAQUE16_LEN + extSz > totalExtSz) - return BUFFER_ERROR; - - if (extId == HELLO_EXT_EXTMS) - pendingEMS = 1; - else - i += extSz; - - totalExtSz -= OPAQUE16_LEN + OPAQUE16_LEN + extSz; - } - - *inOutIdx = i; - } - else - *inOutIdx = begin + helloSz; /* skip extensions */ - } - - if (!pendingEMS && ssl->options.haveEMS) - ssl->options.haveEMS = 0; - } -#endif - - ssl->options.serverState = SERVER_HELLO_COMPLETE; - - if (IsEncryptionOn(ssl, 0)) { - *inOutIdx += ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMWrite && - ssl->specs.cipher_type == block) { - *inOutIdx += MacSize(ssl); - } - #endif - } - -#ifdef HAVE_SECRET_CALLBACK - if (ssl->sessionSecretCb != NULL) { - int secretSz = SECRET_LEN; - ret = ssl->sessionSecretCb(ssl, ssl->session.masterSecret, - &secretSz, ssl->sessionSecretCtx); - if (ret != 0 || secretSz != SECRET_LEN) - return SESSION_SECRET_CB_E; - } -#endif /* HAVE_SECRET_CALLBACK */ - - ret = CompleteServerHello(ssl); - - WOLFSSL_LEAVE("DoServerHello", ret); - WOLFSSL_END(WC_FUNC_SERVER_HELLO_DO); - - return ret; - } - -#ifdef WOLFSSL_TLS13 - /* returns 1 if able to do TLS 1.3 otherwise 0 */ - static int TLSv1_3_Capable(WOLFSSL* ssl) - { - #ifndef WOLFSSL_TLS13 - return 0; - #else - int ret = 0; - - if (IsAtLeastTLSv1_3(ssl->ctx->method->version)) { - ret = 1; - } - - #ifdef OPENSSL_EXTRA - if ((wolfSSL_get_options(ssl) & SSL_OP_NO_TLSv1_3)) { - /* option set at run time to disable TLS 1.3 */ - ret = 0; - } - #endif - return ret; - #endif - } -#endif /* WOLFSSL_TLS13 */ - - int CompleteServerHello(WOLFSSL* ssl) - { - int ret; - - if (!ssl->options.resuming) { - byte* down = ssl->arrays->serverRandom + RAN_LEN - - TLS13_DOWNGRADE_SZ - 1; - byte vers = ssl->arrays->serverRandom[RAN_LEN - 1]; - #ifdef WOLFSSL_TLS13 - if (TLSv1_3_Capable(ssl)) { - /* TLS v1.3 capable client not allowed to downgrade when - * connecting to TLS v1.3 capable server unless cipher suite - * demands it. - */ - if (XMEMCMP(down, tls13Downgrade, TLS13_DOWNGRADE_SZ) == 0 && - (vers == 0 || vers == 1)) { - SendAlert(ssl, alert_fatal, illegal_parameter); - return VERSION_ERROR; - } - } - else - #endif - if (ssl->ctx->method->version.major == SSLv3_MAJOR && - ssl->ctx->method->version.minor == TLSv1_2_MINOR) { - /* TLS v1.2 capable client not allowed to downgrade when - * connecting to TLS v1.2 capable server. - */ - if (XMEMCMP(down, tls13Downgrade, TLS13_DOWNGRADE_SZ) == 0 && - vers == 0) { - SendAlert(ssl, alert_fatal, illegal_parameter); - return VERSION_ERROR; - } - } - } - else { - if (DSH_CheckSessionId(ssl)) { - if (SetCipherSpecs(ssl) == 0) { - - XMEMCPY(ssl->arrays->masterSecret, - ssl->session.masterSecret, SECRET_LEN); - #ifdef NO_OLD_TLS - ret = DeriveTlsKeys(ssl); - #else - ret = -1; /* default value */ - #ifndef NO_TLS - if (ssl->options.tls) - ret = DeriveTlsKeys(ssl); - #endif - if (!ssl->options.tls) - ret = DeriveKeys(ssl); - #endif /* NO_OLD_TLS */ - ssl->options.serverState = SERVER_HELLODONE_COMPLETE; - - return ret; - } - else { - WOLFSSL_MSG("Unsupported cipher suite, DoServerHello"); - return UNSUPPORTED_SUITE; - } - } - else { - WOLFSSL_MSG("Server denied resumption attempt"); - ssl->options.resuming = 0; /* server denied resumption try */ - } - } - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - DtlsMsgPoolReset(ssl); - } - #endif - - return SetCipherSpecs(ssl); - } - -#endif /* WOLFSSL_NO_TLS12 */ - - - /* Make sure client setup is valid for this suite, true on success */ - int VerifyClientSuite(WOLFSSL* ssl) - { - int havePSK = 0; - byte first = ssl->options.cipherSuite0; - byte second = ssl->options.cipherSuite; - - WOLFSSL_ENTER("VerifyClientSuite"); - - #ifndef NO_PSK - havePSK = ssl->options.havePSK; - #endif - - if (CipherRequires(first, second, REQUIRES_PSK)) { - WOLFSSL_MSG("Requires PSK"); - if (havePSK == 0) { - WOLFSSL_MSG("Don't have PSK"); - return 0; - } - } - - return 1; /* success */ - } - -#ifndef WOLFSSL_NO_TLS12 - -#ifndef NO_CERTS - /* handle processing of certificate_request (13) */ - static int DoCertificateRequest(WOLFSSL* ssl, const byte* input, word32* - inOutIdx, word32 size) - { - word16 len; - word32 begin = *inOutIdx; - #ifdef OPENSSL_EXTRA - int ret; - WOLFSSL_X509* x509 = NULL; - WOLFSSL_EVP_PKEY* pkey = NULL; - #endif - - WOLFSSL_START(WC_FUNC_CERTIFICATE_REQUEST_DO); - WOLFSSL_ENTER("DoCertificateRequest"); - - #ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) - AddPacketName(ssl, "CertificateRequest"); - if (ssl->toInfoOn) - AddLateName("CertificateRequest", &ssl->timeoutInfo); - #endif - - if (OPAQUE8_LEN > size) - return BUFFER_ERROR; - - len = input[(*inOutIdx)++]; - - if ((*inOutIdx - begin) + len > size) - return BUFFER_ERROR; - - /* types, read in here */ - *inOutIdx += len; - - /* signature and hash signature algorithm */ - if (IsAtLeastTLSv1_2(ssl)) { - if ((*inOutIdx - begin) + OPAQUE16_LEN > size) - return BUFFER_ERROR; - - ato16(input + *inOutIdx, &len); - *inOutIdx += OPAQUE16_LEN; - - if ((*inOutIdx - begin) + len > size) - return BUFFER_ERROR; - - if (PickHashSigAlgo(ssl, input + *inOutIdx, len) != 0 && - ssl->buffers.certificate && - ssl->buffers.certificate->buffer) { - #ifdef HAVE_PK_CALLBACKS - if (wolfSSL_CTX_IsPrivatePkSet(ssl->ctx)) { - WOLFSSL_MSG("Using PK for client private key"); - return INVALID_PARAMETER; - } - #endif - if (ssl->buffers.key && ssl->buffers.key->buffer) { - return INVALID_PARAMETER; - } - } - *inOutIdx += len; - #ifdef WC_RSA_PSS - ssl->pssAlgo = 0; - if (ssl->suites->sigAlgo == rsa_pss_sa_algo) - ssl->pssAlgo |= 1 << ssl->suites->hashAlgo; - #endif - } - - /* authorities */ - if ((*inOutIdx - begin) + OPAQUE16_LEN > size) - return BUFFER_ERROR; - - ato16(input + *inOutIdx, &len); - *inOutIdx += OPAQUE16_LEN; - - if ((*inOutIdx - begin) + len > size) - return BUFFER_ERROR; - - while (len) { - word16 dnSz; - - if ((*inOutIdx - begin) + OPAQUE16_LEN > size) - return BUFFER_ERROR; - - ato16(input + *inOutIdx, &dnSz); - *inOutIdx += OPAQUE16_LEN; - - if ((*inOutIdx - begin) + dnSz > size) - return BUFFER_ERROR; - - *inOutIdx += dnSz; - len -= OPAQUE16_LEN + dnSz; - } - - #ifdef OPENSSL_EXTRA - /* call client cert callback if no cert has been loaded */ - if ((ssl->ctx->CBClientCert != NULL) && - (!ssl->buffers.certificate || !ssl->buffers.certificate->buffer)) { - - ret = ssl->ctx->CBClientCert(ssl, &x509, &pkey); - if (ret == 1) { - if ((wolfSSL_use_certificate(ssl, x509) != WOLFSSL_SUCCESS) || - (wolfSSL_use_PrivateKey(ssl, pkey) != WOLFSSL_SUCCESS)) { - return CLIENT_CERT_CB_ERROR; - } - wolfSSL_X509_free(x509); - wolfSSL_EVP_PKEY_free(pkey); - - } else if (ret < 0) { - return WOLFSSL_ERROR_WANT_X509_LOOKUP; - } - } - #endif - - /* don't send client cert or cert verify if user hasn't provided - cert and private key */ - if (ssl->buffers.certificate && ssl->buffers.certificate->buffer) { - #ifdef HAVE_PK_CALLBACKS - if (wolfSSL_CTX_IsPrivatePkSet(ssl->ctx)) { - WOLFSSL_MSG("Using PK for client private key"); - ssl->options.sendVerify = SEND_CERT; - } - #endif - if (ssl->buffers.key && ssl->buffers.key->buffer) { - ssl->options.sendVerify = SEND_CERT; - } - } - #ifdef OPENSSL_EXTRA - else - #else - else if (IsTLS(ssl)) - #endif - { - ssl->options.sendVerify = SEND_BLANK_CERT; - } - - if (IsEncryptionOn(ssl, 0)) { - *inOutIdx += ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - *inOutIdx += MacSize(ssl); - #endif - } - - WOLFSSL_LEAVE("DoCertificateRequest", 0); - WOLFSSL_END(WC_FUNC_CERTIFICATE_REQUEST_DO); - - return 0; - } -#endif /* !NO_CERTS */ - - -#if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - - static int CheckCurveId(int tlsCurveId) - { - int ret = ECC_CURVE_ERROR; - - switch (tlsCurveId) { - #if defined(HAVE_ECC160) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case WOLFSSL_ECC_SECP160R1: return ECC_SECP160R1_OID; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_SECPR2 - case WOLFSSL_ECC_SECP160R2: return ECC_SECP160R2_OID; - #endif /* HAVE_ECC_SECPR2 */ - #ifdef HAVE_ECC_KOBLITZ - case WOLFSSL_ECC_SECP160K1: return ECC_SECP160K1_OID; - #endif /* HAVE_ECC_KOBLITZ */ - #endif - #if defined(HAVE_ECC192) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case WOLFSSL_ECC_SECP192R1: return ECC_SECP192R1_OID; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_KOBLITZ - case WOLFSSL_ECC_SECP192K1: return ECC_SECP192K1_OID; - #endif /* HAVE_ECC_KOBLITZ */ - #endif - #if defined(HAVE_ECC224) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case WOLFSSL_ECC_SECP224R1: return ECC_SECP224R1_OID; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_KOBLITZ - case WOLFSSL_ECC_SECP224K1: return ECC_SECP224K1_OID; - #endif /* HAVE_ECC_KOBLITZ */ - #endif - #ifdef HAVE_CURVE25519 - case WOLFSSL_ECC_X25519: return ECC_X25519_OID; - #endif - #if !defined(NO_ECC256) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case WOLFSSL_ECC_SECP256R1: return ECC_SECP256R1_OID; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_KOBLITZ - case WOLFSSL_ECC_SECP256K1: return ECC_SECP256K1_OID; - #endif /* HAVE_ECC_KOBLITZ */ - #ifdef HAVE_ECC_BRAINPOOL - case WOLFSSL_ECC_BRAINPOOLP256R1: return ECC_BRAINPOOLP256R1_OID; - #endif /* HAVE_ECC_BRAINPOOL */ - #endif - #ifdef HAVE_CURVE448 - case WOLFSSL_ECC_X448: return ECC_X448_OID; - #endif - #if defined(HAVE_ECC384) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case WOLFSSL_ECC_SECP384R1: return ECC_SECP384R1_OID; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_BRAINPOOL - case WOLFSSL_ECC_BRAINPOOLP384R1: return ECC_BRAINPOOLP384R1_OID; - #endif /* HAVE_ECC_BRAINPOOL */ - #endif - #if defined(HAVE_ECC512) || defined(HAVE_ALL_CURVES) - #ifdef HAVE_ECC_BRAINPOOL - case WOLFSSL_ECC_BRAINPOOLP512R1: return ECC_BRAINPOOLP512R1_OID; - #endif /* HAVE_ECC_BRAINPOOL */ - #endif - #if defined(HAVE_ECC521) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case WOLFSSL_ECC_SECP521R1: return ECC_SECP521R1_OID; - #endif /* !NO_ECC_SECP */ - #endif - } - - return ret; - } - -#endif /* HAVE_ECC */ - -/* Persistable DoServerKeyExchange arguments */ -typedef struct DskeArgs { - byte* output; /* not allocated */ -#if !defined(NO_DH) || defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_ED448) - byte* verifySig; -#endif - word32 idx; - word32 begin; -#if !defined(NO_DH) || defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_ED448) - word16 verifySigSz; -#endif - word16 sigSz; - byte sigAlgo; - byte hashAlgo; -#if !defined(NO_RSA) && defined(WC_RSA_PSS) - int bits; -#endif -} DskeArgs; - -static void FreeDskeArgs(WOLFSSL* ssl, void* pArgs) -{ - DskeArgs* args = (DskeArgs*)pArgs; - - (void)ssl; - (void)args; - -#if !defined(NO_DH) || defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_ED448) - if (args->verifySig) { - XFREE(args->verifySig, ssl->heap, DYNAMIC_TYPE_SIGNATURE); - args->verifySig = NULL; - } -#endif -} - -#ifndef NO_DH -static int GetDhPublicKey(WOLFSSL* ssl, const byte* input, word32 size, - DskeArgs* args) -{ - int ret = 0; - word16 length; -#ifdef HAVE_FFDHE - const DhParams* params = NULL; - int group = 0; -#endif - - ssl->buffers.weOwnDH = 1; - - ssl->buffers.serverDH_P.buffer = NULL; - ssl->buffers.serverDH_G.buffer = NULL; - ssl->buffers.serverDH_Pub.buffer = NULL; - - /* p */ - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_gdpk); - } - - ato16(input + args->idx, &length); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + length > size) { - ERROR_OUT(BUFFER_ERROR, exit_gdpk); - } - - if (length < ssl->options.minDhKeySz) { - WOLFSSL_MSG("Server using a DH key that is too small"); - SendAlert(ssl, alert_fatal, handshake_failure); - ERROR_OUT(DH_KEY_SIZE_E, exit_gdpk); - } - if (length > ssl->options.maxDhKeySz) { - WOLFSSL_MSG("Server using a DH key that is too big"); - SendAlert(ssl, alert_fatal, handshake_failure); - ERROR_OUT(DH_KEY_SIZE_E, exit_gdpk); - } - - ssl->buffers.serverDH_P.buffer = - (byte*)XMALLOC(length, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - if (ssl->buffers.serverDH_P.buffer) { - ssl->buffers.serverDH_P.length = length; - } - else { - ERROR_OUT(MEMORY_ERROR, exit_gdpk); - } - - XMEMCPY(ssl->buffers.serverDH_P.buffer, input + args->idx, - length); - args->idx += length; - - ssl->options.dhKeySz = length; - - /* g */ - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_gdpk); - } - - ato16(input + args->idx, &length); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + length > size) { - ERROR_OUT(BUFFER_ERROR, exit_gdpk); - } - - ssl->buffers.serverDH_G.buffer = - (byte*)XMALLOC(length, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - if (ssl->buffers.serverDH_G.buffer) { - ssl->buffers.serverDH_G.length = length; - } - else { - ERROR_OUT(MEMORY_ERROR, exit_gdpk); - } - - XMEMCPY(ssl->buffers.serverDH_G.buffer, input + args->idx, - length); - args->idx += length; - - /* pub */ - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_gdpk); - } - - ato16(input + args->idx, &length); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + length > size) { - ERROR_OUT(BUFFER_ERROR, exit_gdpk); - } - - ssl->buffers.serverDH_Pub.buffer = - (byte*)XMALLOC(length, ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - if (ssl->buffers.serverDH_Pub.buffer) { - ssl->buffers.serverDH_Pub.length = length; - } - else { - ERROR_OUT(MEMORY_ERROR, exit_gdpk); - } - - XMEMCPY(ssl->buffers.serverDH_Pub.buffer, input + args->idx, - length); - args->idx += length; - -#ifdef HAVE_FFDHE - switch (ssl->options.dhKeySz) { - #ifdef HAVE_FFDHE_2048 - case 2048/8: - params = wc_Dh_ffdhe2048_Get(); - group = WOLFSSL_FFDHE_2048; - break; - #endif - #ifdef HAVE_FFDHE_3072 - case 3072/8: - params = wc_Dh_ffdhe3072_Get(); - group = WOLFSSL_FFDHE_3072; - break; - #endif - #ifdef HAVE_FFDHE_4096 - case 4096/8: - params = wc_Dh_ffdhe4096_Get(); - group = WOLFSSL_FFDHE_4096; - break; - #endif - #ifdef HAVE_FFDHE_6144 - case 6144/8: - params = wc_Dh_ffdhe6144_Get(); - group = WOLFSSL_FFDHE_6144; - break; - #endif - #ifdef HAVE_FFDHE_8192 - case 8192/8: - params = wc_Dh_ffdhe8192_Get(); - group = WOLFSSL_FFDHE_8192; - break; - #endif - default: - break; - } - - if (params == NULL || params->g_len != ssl->buffers.serverDH_G.length || - (XMEMCMP(ssl->buffers.serverDH_G.buffer, params->g, - params->g_len) != 0) || - (XMEMCMP(ssl->buffers.serverDH_P.buffer, params->p, - params->p_len) != 0)) { - WOLFSSL_MSG("Server not using FFDHE parameters"); - #ifdef WOLFSSL_REQUIRE_FFDHE - SendAlert(ssl, alert_fatal, handshake_failure); - ERROR_OUT(DH_PARAMS_NOT_FFDHE_E, exit_gdpk); - #endif - } - else { - ssl->namedGroup = group; - #if !defined(WOLFSSL_OLD_PRIME_CHECK) && !defined(HAVE_FIPS) && \ - !defined(HAVE_SELFTEST) - ssl->options.dhDoKeyTest = 0; - #endif - } -#endif /* HAVE_FFDHE */ - -exit_gdpk: - return ret; -} -#endif - -/* handle processing of server_key_exchange (12) */ -static int DoServerKeyExchange(WOLFSSL* ssl, const byte* input, - word32* inOutIdx, word32 size) -{ - int ret = 0; -#ifdef WOLFSSL_ASYNC_CRYPT - DskeArgs* args = (DskeArgs*)ssl->async.args; - typedef char args_test[sizeof(ssl->async.args) >= sizeof(*args) ? 1 : -1]; - (void)sizeof(args_test); -#else - DskeArgs args[1]; -#endif - - (void)input; - (void)size; - - WOLFSSL_START(WC_FUNC_SERVER_KEY_EXCHANGE_DO); - WOLFSSL_ENTER("DoServerKeyExchange"); - -#ifdef WOLFSSL_ASYNC_CRYPT - ret = wolfSSL_AsyncPop(ssl, &ssl->options.asyncState); - if (ret != WC_NOT_PENDING_E) { - /* Check for error */ - if (ret < 0) - goto exit_dske; - } - else -#endif - { - /* Reset state */ - ret = 0; - ssl->options.asyncState = TLS_ASYNC_BEGIN; - XMEMSET(args, 0, sizeof(DskeArgs)); - args->idx = *inOutIdx; - args->begin = *inOutIdx; - args->sigAlgo = ssl->specs.sig_algo; - args->hashAlgo = sha_mac; - #ifdef WOLFSSL_ASYNC_CRYPT - ssl->async.freeArgs = FreeDskeArgs; - #endif - } - - switch(ssl->options.asyncState) - { - case TLS_ASYNC_BEGIN: - { - #ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) - AddPacketName(ssl, "ServerKeyExchange"); - if (ssl->toInfoOn) - AddLateName("ServerKeyExchange", &ssl->timeoutInfo); - #endif - - switch(ssl->specs.kea) - { - #ifndef NO_PSK - case psk_kea: - { - int srvHintLen; - word16 length; - - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - ato16(input + args->idx, &length); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + length > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - /* get PSK server hint from the wire */ - srvHintLen = min(length, MAX_PSK_ID_LEN); - XMEMCPY(ssl->arrays->server_hint, input + args->idx, - srvHintLen); - ssl->arrays->server_hint[srvHintLen] = '\0'; /* null term */ - args->idx += length; - break; - } - #endif /* !NO_PSK */ - #ifndef NO_DH - case diffie_hellman_kea: - { - ret = GetDhPublicKey(ssl, input, size, args); - if (ret != 0) - goto exit_dske; - break; - } - #endif /* !NO_DH */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - byte b; - #ifdef HAVE_ECC - int curveId; - #endif - int curveOid; - word16 length; - - if ((args->idx - args->begin) + ENUM_LEN + OPAQUE16_LEN + - OPAQUE8_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - b = input[args->idx++]; - if (b != named_curve) { - ERROR_OUT(ECC_CURVETYPE_ERROR, exit_dske); - } - - args->idx += 1; /* curve type, eat leading 0 */ - b = input[args->idx++]; - if ((curveOid = CheckCurveId(b)) < 0) { - ERROR_OUT(ECC_CURVE_ERROR, exit_dske); - } - ssl->ecdhCurveOID = curveOid; - #if defined(WOLFSSL_TLS13) || defined(HAVE_FFDHE) - ssl->namedGroup = 0; - #endif - - length = input[args->idx++]; - if ((args->idx - args->begin) + length > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - if (ssl->peerX25519Key == NULL) { - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE25519, - (void**)&ssl->peerX25519Key); - if (ret != 0) { - goto exit_dske; - } - } else if (ssl->peerX25519KeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_CURVE25519, - ssl->peerX25519Key); - ssl->peerX25519KeyPresent = 0; - if (ret != 0) { - goto exit_dske; - } - } - - if ((ret = wc_curve25519_check_public( - input + args->idx, length, - EC25519_LITTLE_ENDIAN)) != 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_E) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret == ECC_OUT_OF_RANGE_E) - SendAlert(ssl, alert_fatal, bad_record_mac); - else { - SendAlert(ssl, alert_fatal, illegal_parameter); - } - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - if (wc_curve25519_import_public_ex(input + args->idx, - length, ssl->peerX25519Key, - EC25519_LITTLE_ENDIAN) != 0) { - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - args->idx += length; - ssl->peerX25519KeyPresent = 1; - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - if (ssl->peerX448Key == NULL) { - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE448, - (void**)&ssl->peerX448Key); - if (ret != 0) { - goto exit_dske; - } - } else if (ssl->peerX448KeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_CURVE448, - ssl->peerX448Key); - ssl->peerX448KeyPresent = 0; - if (ret != 0) { - goto exit_dske; - } - } - - if ((ret = wc_curve448_check_public( - input + args->idx, length, - EC448_LITTLE_ENDIAN)) != 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_E) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret == ECC_OUT_OF_RANGE_E) - SendAlert(ssl, alert_fatal, bad_record_mac); - else { - SendAlert(ssl, alert_fatal, illegal_parameter); - } - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - if (wc_curve448_import_public_ex(input + args->idx, - length, ssl->peerX448Key, - EC448_LITTLE_ENDIAN) != 0) { - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - args->idx += length; - ssl->peerX448KeyPresent = 1; - break; - } - #endif - #ifdef HAVE_ECC - if (ssl->peerEccKey == NULL) { - ret = AllocKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccKey); - if (ret != 0) { - goto exit_dske; - } - } else if (ssl->peerEccKeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_ECC, ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; - if (ret != 0) { - goto exit_dske; - } - } - - curveId = wc_ecc_get_oid(curveOid, NULL, NULL); - if (wc_ecc_import_x963_ex(input + args->idx, length, - ssl->peerEccKey, curveId) != 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, illegal_parameter); - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - args->idx += length; - ssl->peerEccKeyPresent = 1; - #endif - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - int srvHintLen; - word16 length; - - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - ato16(input + args->idx, &length); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + length > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - /* get PSK server hint from the wire */ - srvHintLen = min(length, MAX_PSK_ID_LEN); - XMEMCPY(ssl->arrays->server_hint, input + args->idx, - srvHintLen); - ssl->arrays->server_hint[srvHintLen] = '\0'; /* null term */ - args->idx += length; - - ret = GetDhPublicKey(ssl, input, size, args); - if (ret != 0) - goto exit_dske; - break; - } - #endif /* !NO_DH && !NO_PSK */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - byte b; - int curveOid, curveId; - int srvHintLen; - word16 length; - - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - ato16(input + args->idx, &length); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + length > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - /* get PSK server hint from the wire */ - srvHintLen = min(length, MAX_PSK_ID_LEN); - XMEMCPY(ssl->arrays->server_hint, input + args->idx, - srvHintLen); - ssl->arrays->server_hint[srvHintLen] = '\0'; /* null term */ - - args->idx += length; - - if ((args->idx - args->begin) + ENUM_LEN + OPAQUE16_LEN + - OPAQUE8_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - /* Check curve name and ID */ - b = input[args->idx++]; - if (b != named_curve) { - ERROR_OUT(ECC_CURVETYPE_ERROR, exit_dske); - } - - args->idx += 1; /* curve type, eat leading 0 */ - b = input[args->idx++]; - if ((curveOid = CheckCurveId(b)) < 0) { - ERROR_OUT(ECC_CURVE_ERROR, exit_dske); - } - - length = input[args->idx++]; - if ((args->idx - args->begin) + length > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - if (ssl->peerX25519Key == NULL) { - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE25519, - (void**)&ssl->peerX25519Key); - if (ret != 0) { - goto exit_dske; - } - } else if (ssl->peerEccKeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_CURVE25519, - ssl->peerX25519Key); - ssl->peerX25519KeyPresent = 0; - if (ret != 0) { - goto exit_dske; - } - } - - if ((ret = wc_curve25519_check_public( - input + args->idx, length, - EC25519_LITTLE_ENDIAN)) != 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_E) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret == ECC_OUT_OF_RANGE_E) - SendAlert(ssl, alert_fatal, bad_record_mac); - else { - SendAlert(ssl, alert_fatal, illegal_parameter); - } - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - if (wc_curve25519_import_public_ex(input + args->idx, - length, ssl->peerX25519Key, - EC25519_LITTLE_ENDIAN) != 0) { - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - args->idx += length; - ssl->peerX25519KeyPresent = 1; - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - if (ssl->peerX448Key == NULL) { - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE448, - (void**)&ssl->peerX448Key); - if (ret != 0) { - goto exit_dske; - } - } else if (ssl->peerEccKeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_CURVE448, - ssl->peerX448Key); - ssl->peerX448KeyPresent = 0; - if (ret != 0) { - goto exit_dske; - } - } - - if ((ret = wc_curve448_check_public( - input + args->idx, length, - EC448_LITTLE_ENDIAN)) != 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_E) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret == ECC_OUT_OF_RANGE_E) - SendAlert(ssl, alert_fatal, bad_record_mac); - else { - SendAlert(ssl, alert_fatal, illegal_parameter); - } - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - if (wc_curve448_import_public_ex(input + args->idx, - length, ssl->peerX448Key, - EC448_LITTLE_ENDIAN) != 0) { - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - args->idx += length; - ssl->peerX448KeyPresent = 1; - break; - } - #endif - - if (ssl->peerEccKey == NULL) { - ret = AllocKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccKey); - if (ret != 0) { - goto exit_dske; - } - } else if (ssl->peerEccKeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_ECC, ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; - if (ret != 0) { - goto exit_dske; - } - } - - curveId = wc_ecc_get_oid(curveOid, NULL, NULL); - if (wc_ecc_import_x963_ex(input + args->idx, length, - ssl->peerEccKey, curveId) != 0) { - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dske); - } - - args->idx += length; - ssl->peerEccKeyPresent = 1; - break; - } - #endif /* (HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448) && !NO_PSK */ - default: - ret = BAD_KEA_TYPE_E; - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_dske; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_BUILD; - } /* case TLS_ASYNC_BEGIN */ - FALL_THROUGH; - - case TLS_ASYNC_BUILD: - { - switch(ssl->specs.kea) - { - case psk_kea: - case dhe_psk_kea: - case ecdhe_psk_kea: - { - /* Nothing to do in this sub-state */ - break; - } - - case diffie_hellman_kea: - case ecc_diffie_hellman_kea: - { - #if defined(NO_DH) && !defined(HAVE_ECC) && !defined(HAVE_ED25519) \ - && !defined(HAVE_ED448) - ERROR_OUT(NOT_COMPILED_IN, exit_dske); - #else - enum wc_HashType hashType; - word16 verifySz; - - if (ssl->options.usingAnon_cipher) { - break; - } - - verifySz = (word16)(args->idx - args->begin); - if (verifySz > MAX_DH_SZ) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - if (IsAtLeastTLSv1_2(ssl)) { - if ((args->idx - args->begin) + ENUM_LEN + ENUM_LEN > - size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - DecodeSigAlg(&input[args->idx], &args->hashAlgo, - &args->sigAlgo); - args->idx += 2; - hashType = HashAlgoToType(args->hashAlgo); - if (hashType == WC_HASH_TYPE_NONE) { - ERROR_OUT(ALGO_ID_E, exit_dske); - } - } else { - /* only using sha and md5 for rsa */ - #ifndef NO_OLD_TLS - hashType = WC_HASH_TYPE_SHA; - if (args->sigAlgo == rsa_sa_algo) { - hashType = WC_HASH_TYPE_MD5_SHA; - } - #else - ERROR_OUT(ALGO_ID_E, exit_dske); - #endif - } - - /* signature */ - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - ato16(input + args->idx, &args->verifySigSz); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + args->verifySigSz > size) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - - /* buffer for signature */ - ssl->buffers.sig.buffer = (byte*)XMALLOC(SEED_LEN + verifySz, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (ssl->buffers.sig.buffer == NULL) { - ERROR_OUT(MEMORY_E, exit_dske); - } - ssl->buffers.sig.length = SEED_LEN + verifySz; - - /* build message to hash */ - XMEMCPY(ssl->buffers.sig.buffer, - ssl->arrays->clientRandom, RAN_LEN); - XMEMCPY(&ssl->buffers.sig.buffer[RAN_LEN], - ssl->arrays->serverRandom, RAN_LEN); - XMEMCPY(&ssl->buffers.sig.buffer[RAN_LEN * 2], - input + args->begin, verifySz); /* message */ - - if (args->sigAlgo != ed25519_sa_algo) { - int digest_sz = wc_HashGetDigestSize(hashType); - if (digest_sz <= 0) { - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - ssl->buffers.digest.length = (unsigned int)digest_sz; - - /* buffer for hash */ - ssl->buffers.digest.buffer = (byte*)XMALLOC( - ssl->buffers.digest.length, ssl->heap, - DYNAMIC_TYPE_DIGEST); - if (ssl->buffers.digest.buffer == NULL) { - ERROR_OUT(MEMORY_E, exit_dske); - } - - /* Perform hash */ - ret = wc_Hash(hashType, ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - ssl->buffers.digest.buffer, - ssl->buffers.digest.length); - if (ret != 0) { - goto exit_dske; - } - } - - switch (args->sigAlgo) - { - #ifndef NO_RSA - #ifdef WC_RSA_PSS - case rsa_pss_sa_algo: - #endif - case rsa_sa_algo: - { - if (ssl->peerRsaKey == NULL || - !ssl->peerRsaKeyPresent) { - ERROR_OUT(NO_PEER_KEY, exit_dske); - } - break; - } - #endif /* !NO_RSA */ - #ifdef HAVE_ECC - case ecc_dsa_sa_algo: - { - if (!ssl->peerEccDsaKeyPresent) { - ERROR_OUT(NO_PEER_KEY, exit_dske); - } - break; - } - #endif /* HAVE_ECC */ - #if defined(HAVE_ED25519) - case ed25519_sa_algo: - { - if (!ssl->peerEd25519KeyPresent) { - ERROR_OUT(NO_PEER_KEY, exit_dske); - } - break; - } - #endif /* HAVE_ED25519 */ - #if defined(HAVE_ED448) - case ed448_sa_algo: - { - if (!ssl->peerEd448KeyPresent) { - ERROR_OUT(NO_PEER_KEY, exit_dske); - } - break; - } - #endif /* HAVE_ED448 */ - - default: - ret = ALGO_ID_E; - } /* switch (args->sigAlgo) */ - - #endif /* NO_DH && !HAVE_ECC && !HAVE_ED25519 && !HAVE_ED448 */ - break; - } - default: - ret = BAD_KEA_TYPE_E; - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_dske; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_DO; - } /* case TLS_ASYNC_BUILD */ - FALL_THROUGH; - - case TLS_ASYNC_DO: - { - switch(ssl->specs.kea) - { - case psk_kea: - case dhe_psk_kea: - case ecdhe_psk_kea: - { - /* Nothing to do in this sub-state */ - break; - } - - case diffie_hellman_kea: - case ecc_diffie_hellman_kea: - { - #if defined(NO_DH) && !defined(HAVE_ECC) && !defined(HAVE_ED25519) \ - && !defined(HAVE_ED448) - ERROR_OUT(NOT_COMPILED_IN, exit_dske); - #else - if (ssl->options.usingAnon_cipher) { - break; - } - - if (args->verifySig == NULL) { - args->verifySig = (byte*)XMALLOC(args->verifySigSz, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (args->verifySig == NULL) { - ERROR_OUT(MEMORY_E, exit_dske); - } - XMEMCPY(args->verifySig, input + args->idx, - args->verifySigSz); - } - - switch (args->sigAlgo) - { - #ifndef NO_RSA - #ifdef WC_RSA_PSS - case rsa_pss_sa_algo: - #endif - case rsa_sa_algo: - { - ret = RsaVerify(ssl, - args->verifySig, args->verifySigSz, - &args->output, - args->sigAlgo, args->hashAlgo, - ssl->peerRsaKey, - #ifdef HAVE_PK_CALLBACKS - &ssl->buffers.peerRsaKey - #else - NULL - #endif - ); - - if (ret >= 0) { - args->sigSz = (word16)ret; - #ifdef WC_RSA_PSS - args->bits = mp_count_bits(&ssl->peerRsaKey->n); - #endif - ret = 0; - } - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret != WC_PENDING_E) - #endif - { - /* peerRsaKey */ - FreeKey(ssl, DYNAMIC_TYPE_RSA, - (void**)&ssl->peerRsaKey); - ssl->peerRsaKeyPresent = 0; - } - break; - } - #endif /* !NO_RSA */ - #ifdef HAVE_ECC - case ecc_dsa_sa_algo: - { - ret = EccVerify(ssl, - args->verifySig, args->verifySigSz, - ssl->buffers.digest.buffer, - ssl->buffers.digest.length, - ssl->peerEccDsaKey, - #ifdef HAVE_PK_CALLBACKS - &ssl->buffers.peerEccDsaKey - #else - NULL - #endif - ); - - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret != WC_PENDING_E) - #endif - { - /* peerEccDsaKey */ - FreeKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccDsaKey); - ssl->peerEccDsaKeyPresent = 0; - } - break; - } - #endif /* HAVE_ECC */ - #if defined(HAVE_ED25519) - case ed25519_sa_algo: - { - ret = Ed25519Verify(ssl, - args->verifySig, args->verifySigSz, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - ssl->peerEd25519Key, - #ifdef HAVE_PK_CALLBACKS - &ssl->buffers.peerEd25519Key - #else - NULL - #endif - ); - - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret != WC_PENDING_E) - #endif - { - /* peerEccDsaKey */ - FreeKey(ssl, DYNAMIC_TYPE_ED25519, - (void**)&ssl->peerEd25519Key); - ssl->peerEd25519KeyPresent = 0; - } - break; - } - #endif /* HAVE_ED25519 */ - #if defined(HAVE_ED448) - case ed448_sa_algo: - { - ret = Ed448Verify(ssl, - args->verifySig, args->verifySigSz, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - ssl->peerEd448Key, - #ifdef HAVE_PK_CALLBACKS - &ssl->buffers.peerEd448Key - #else - NULL - #endif - ); - - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret != WC_PENDING_E) - #endif - { - /* peerEccDsaKey */ - FreeKey(ssl, DYNAMIC_TYPE_ED448, - (void**)&ssl->peerEd448Key); - ssl->peerEd448KeyPresent = 0; - } - break; - } - #endif /* HAVE_ED448 */ - - default: - ret = ALGO_ID_E; - } /* switch (sigAlgo) */ - #endif /* NO_DH && !HAVE_ECC && !HAVE_ED25519 && !HAVE_ED448 */ - break; - } - default: - ret = BAD_KEA_TYPE_E; - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_dske; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_VERIFY; - } /* case TLS_ASYNC_DO */ - FALL_THROUGH; - - case TLS_ASYNC_VERIFY: - { - switch(ssl->specs.kea) - { - case psk_kea: - case dhe_psk_kea: - case ecdhe_psk_kea: - { - /* Nothing to do in this sub-state */ - break; - } - - case diffie_hellman_kea: - case ecc_diffie_hellman_kea: - { - #if defined(NO_DH) && !defined(HAVE_ECC) && !defined(HAVE_ED25519) \ - && !defined(HAVE_ED448) - ERROR_OUT(NOT_COMPILED_IN, exit_dske); - #else - if (ssl->options.usingAnon_cipher) { - break; - } - - /* increment index after verify is done */ - args->idx += args->verifySigSz; - - switch(args->sigAlgo) - { - #ifndef NO_RSA - #ifdef WC_RSA_PSS - case rsa_pss_sa_algo: - #ifdef HAVE_SELFTEST - ret = wc_RsaPSS_CheckPadding( - ssl->buffers.digest.buffer, - ssl->buffers.digest.length, - args->output, args->sigSz, - HashAlgoToType(args->hashAlgo)); - #else - ret = wc_RsaPSS_CheckPadding_ex( - ssl->buffers.digest.buffer, - ssl->buffers.digest.length, - args->output, args->sigSz, - HashAlgoToType(args->hashAlgo), - -1, args->bits); - #endif - if (ret != 0) - return ret; - break; - #endif - case rsa_sa_algo: - { - if (IsAtLeastTLSv1_2(ssl)) { - #ifdef WOLFSSL_SMALL_STACK - byte* encodedSig; - #else - byte encodedSig[MAX_ENCODED_SIG_SZ]; - #endif - word32 encSigSz; - - #ifdef WOLFSSL_SMALL_STACK - encodedSig = (byte*)XMALLOC(MAX_ENCODED_SIG_SZ, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (encodedSig == NULL) { - ERROR_OUT(MEMORY_E, exit_dske); - } - #endif - - encSigSz = wc_EncodeSignature(encodedSig, - ssl->buffers.digest.buffer, - ssl->buffers.digest.length, - TypeHash(args->hashAlgo)); - if (encSigSz != args->sigSz || !args->output || - XMEMCMP(args->output, encodedSig, - min(encSigSz, MAX_ENCODED_SIG_SZ)) != 0) { - ret = VERIFY_SIGN_ERROR; - } - #ifdef WOLFSSL_SMALL_STACK - XFREE(encodedSig, ssl->heap, DYNAMIC_TYPE_SIGNATURE); - #endif - if (ret != 0) { - goto exit_dske; - } - } - else if (args->sigSz != FINISHED_SZ || - !args->output || - XMEMCMP(args->output, - ssl->buffers.digest.buffer, - FINISHED_SZ) != 0) { - ERROR_OUT(VERIFY_SIGN_ERROR, exit_dske); - } - break; - } - #endif /* !NO_RSA */ - #ifdef HAVE_ECC - case ecc_dsa_sa_algo: - /* Nothing to do in this algo */ - break; - #endif /* HAVE_ECC */ - #if defined(HAVE_ED25519) - case ed25519_sa_algo: - /* Nothing to do in this algo */ - break; - #endif /* HAVE_ED25519 */ - #if defined(HAVE_ED448) - case ed448_sa_algo: - /* Nothing to do in this algo */ - break; - #endif /* HAVE_ED448 */ - default: - ret = ALGO_ID_E; - } /* switch (sigAlgo) */ - #endif /* NO_DH && !HAVE_ECC && !HAVE_ED25519 && !HAVE_ED448 */ - break; - } - default: - ret = BAD_KEA_TYPE_E; - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_dske; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_FINALIZE; - } /* case TLS_ASYNC_VERIFY */ - FALL_THROUGH; - - case TLS_ASYNC_FINALIZE: - { - if (IsEncryptionOn(ssl, 0)) { - args->idx += ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - args->idx += MacSize(ssl); - #endif - } - - /* QSH extensions */ - #ifdef HAVE_QSH - if (ssl->peerQSHKeyPresent) { - word16 name; - int qshSz; - - /* extension name */ - ato16(input + args->idx, &name); - args->idx += OPAQUE16_LEN; - - if (name == TLSX_QUANTUM_SAFE_HYBRID) { - /* if qshSz is larger than 0 it is the length of - buffer used */ - if ((qshSz = TLSX_QSHCipher_Parse(ssl, input + args->idx, - size, 0)) < 0) { - ERROR_OUT(qshSz, exit_dske); - } - args->idx += qshSz; - } - else { - /* unknown extension sent server ignored handshake */ - ERROR_OUT(BUFFER_ERROR, exit_dske); - } - } - #endif - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_END; - } /* case TLS_ASYNC_FINALIZE */ - FALL_THROUGH; - - case TLS_ASYNC_END: - { - /* return index */ - *inOutIdx = args->idx; - - ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE; - break; - } - default: - ret = INPUT_CASE_ERROR; - } /* switch(ssl->options.asyncState) */ - -exit_dske: - - WOLFSSL_LEAVE("DoServerKeyExchange", ret); - WOLFSSL_END(WC_FUNC_SERVER_KEY_EXCHANGE_DO); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* Handle async operation */ - if (ret == WC_PENDING_E) { - /* Mark message as not received so it can process again */ - ssl->msgsReceived.got_server_key_exchange = 0; - - return ret; - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - /* Final cleanup */ - FreeDskeArgs(ssl, args); - FreeKeyExchange(ssl); - - return ret; -} - - -#ifdef HAVE_QSH - -#ifdef HAVE_NTRU -/* Encrypt a byte array using ntru - key a struct containing the public key to use - bufIn array to be encrypted - inSz size of bufIn array - bufOut cipher text out - outSz will be set to the new size of cipher text - */ -static int NtruSecretEncrypt(QSHKey* key, byte* bufIn, word32 inSz, - byte* bufOut, word16* outSz) -{ - int ret; - DRBG_HANDLE drbg; - - /* sanity checks on input arguments */ - if (key == NULL || bufIn == NULL || bufOut == NULL || outSz == NULL) - return BAD_FUNC_ARG; - - if (key->pub.buffer == NULL) - return BAD_FUNC_ARG; - - switch (key->name) { - case WOLFSSL_NTRU_EESS439: - case WOLFSSL_NTRU_EESS593: - case WOLFSSL_NTRU_EESS743: - break; - default: - WOLFSSL_MSG("Unknown QSH encryption key!"); - return -1; - } - - /* set up ntru drbg */ - ret = ntru_crypto_drbg_external_instantiate(GetEntropy, &drbg); - if (ret != DRBG_OK) - return NTRU_DRBG_ERROR; - - /* encrypt the byte array */ - ret = ntru_crypto_ntru_encrypt(drbg, key->pub.length, key->pub.buffer, - inSz, bufIn, outSz, bufOut); - ntru_crypto_drbg_uninstantiate(drbg); - if (ret != NTRU_OK) - return NTRU_ENCRYPT_ERROR; - - return ret; -} - -/* Decrypt a byte array using ntru - key a struct containing the private key to use - bufIn array to be decrypted - inSz size of bufIn array - bufOut plain text out - outSz will be set to the new size of plain text - */ - -static int NtruSecretDecrypt(QSHKey* key, byte* bufIn, word32 inSz, - byte* bufOut, word16* outSz) -{ - int ret; - DRBG_HANDLE drbg; - - /* sanity checks on input arguments */ - if (key == NULL || bufIn == NULL || bufOut == NULL || outSz == NULL) - return BAD_FUNC_ARG; - - if (key->pri.buffer == NULL) - return BAD_FUNC_ARG; - - switch (key->name) { - case WOLFSSL_NTRU_EESS439: - case WOLFSSL_NTRU_EESS593: - case WOLFSSL_NTRU_EESS743: - break; - default: - WOLFSSL_MSG("Unknown QSH decryption key!"); - return -1; - } - - - /* set up drbg */ - ret = ntru_crypto_drbg_external_instantiate(GetEntropy, &drbg); - if (ret != DRBG_OK) - return NTRU_DRBG_ERROR; - - /* decrypt cipher text */ - ret = ntru_crypto_ntru_decrypt(key->pri.length, key->pri.buffer, - inSz, bufIn, outSz, bufOut); - ntru_crypto_drbg_uninstantiate(drbg); - if (ret != NTRU_OK) - return NTRU_ENCRYPT_ERROR; - - return ret; -} -#endif /* HAVE_NTRU */ - -int QSH_Init(WOLFSSL* ssl) -{ - /* check so not initializing twice when running DTLS */ - if (ssl->QSH_secret != NULL) - return 0; - - /* malloc memory for holding generated secret information */ - if ((ssl->QSH_secret = (QSHSecret*)XMALLOC(sizeof(QSHSecret), ssl->heap, - DYNAMIC_TYPE_QSH)) == NULL) - return MEMORY_E; - - ssl->QSH_secret->CliSi = (buffer*)XMALLOC(sizeof(buffer), ssl->heap, - DYNAMIC_TYPE_SECRET); - if (ssl->QSH_secret->CliSi == NULL) - return MEMORY_E; - - ssl->QSH_secret->SerSi = (buffer*)XMALLOC(sizeof(buffer), ssl->heap, - DYNAMIC_TYPE_SECRET); - if (ssl->QSH_secret->SerSi == NULL) - return MEMORY_E; - - /* initialize variables */ - ssl->QSH_secret->list = NULL; - ssl->QSH_secret->CliSi->length = 0; - ssl->QSH_secret->CliSi->buffer = NULL; - ssl->QSH_secret->SerSi->length = 0; - ssl->QSH_secret->SerSi->buffer = NULL; - - return 0; -} - - -static int QSH_Encrypt(QSHKey* key, byte* in, word32 szIn, - byte* out, word32* szOut) -{ - int ret = 0; - word16 size = *szOut; - - (void)in; - (void)szIn; - (void)out; - (void)szOut; - - WOLFSSL_MSG("Encrypting QSH key material"); - - switch (key->name) { - #ifdef HAVE_NTRU - case WOLFSSL_NTRU_EESS439: - case WOLFSSL_NTRU_EESS593: - case WOLFSSL_NTRU_EESS743: - ret = NtruSecretEncrypt(key, in, szIn, out, &size); - break; - #endif - default: - WOLFSSL_MSG("Unknown QSH encryption key!"); - return -1; - } - - *szOut = size; - - return ret; -} - - -/* Decrypt using Quantum Safe Handshake algorithms */ -int QSH_Decrypt(QSHKey* key, byte* in, word32 szIn, byte* out, word16* szOut) -{ - int ret = 0; - word16 size = *szOut; - - (void)in; - (void)szIn; - (void)out; - (void)szOut; - - WOLFSSL_MSG("Decrypting QSH key material"); - - switch (key->name) { - #ifdef HAVE_NTRU - case WOLFSSL_NTRU_EESS439: - case WOLFSSL_NTRU_EESS593: - case WOLFSSL_NTRU_EESS743: - ret = NtruSecretDecrypt(key, in, szIn, out, &size); - break; - #endif - default: - WOLFSSL_MSG("Unknown QSH decryption key!"); - return -1; - } - - *szOut = size; - - return ret; -} - - -/* Get the max cipher text for corresponding encryption scheme - (encrypting 48 or max plain text whichever is smaller) - */ -static word32 QSH_MaxSecret(QSHKey* key) -{ - int ret = 0; -#ifdef HAVE_NTRU - byte isNtru = 0; - word16 inSz = 48; - word16 outSz; - DRBG_HANDLE drbg = 0; - byte bufIn[48]; -#endif - - if (key == NULL || key->pub.length == 0) - return 0; - - switch(key->name) { -#ifdef HAVE_NTRU - case WOLFSSL_NTRU_EESS439: - isNtru = 1; - break; - case WOLFSSL_NTRU_EESS593: - isNtru = 1; - break; - case WOLFSSL_NTRU_EESS743: - isNtru = 1; - break; -#endif - default: - WOLFSSL_MSG("Unknown QSH encryption scheme size!"); - return 0; - } - -#ifdef HAVE_NTRU - if (isNtru) { - ret = ntru_crypto_drbg_external_instantiate(GetEntropy, &drbg); - if (ret != DRBG_OK) - return NTRU_DRBG_ERROR; - ret = ntru_crypto_ntru_encrypt(drbg, key->pub.length, - key->pub.buffer, inSz, bufIn, &outSz, NULL); - if (ret != NTRU_OK) { - return NTRU_ENCRYPT_ERROR; - } - ntru_crypto_drbg_uninstantiate(drbg); - ret = outSz; - } -#endif - - return ret; -} - -/* Generate the secret byte material for pms - returns length on success and -1 on fail - */ -static int QSH_GenerateSerCliSecret(WOLFSSL* ssl, byte isServer) -{ - int sz = 0; - int plainSz = 48; /* lesser of 48 and max plain text able to encrypt */ - int offset = 0; - word32 tmpSz = 0; - buffer* buf; - QSHKey* current; - QSHScheme* schmPre = NULL; - QSHScheme* schm = NULL; - - if (ssl == NULL) - return -1; - - WOLFSSL_MSG("Generating QSH secret key material"); - - current = ssl->peerQSHKey; - /* get size of buffer needed */ - while (current) { - if (current->pub.length != 0) { - sz += plainSz; - } - current = (QSHKey*)current->next; - } - - /* allocate memory for buffer */ - if (isServer) { - buf = ssl->QSH_secret->SerSi; - } - else { - buf = ssl->QSH_secret->CliSi; - } - buf->length = sz; - buf->buffer = (byte*)XMALLOC(sz, ssl->heap, DYNAMIC_TYPE_SECRET); - if (buf->buffer == NULL) { - WOLFSSL_ERROR(MEMORY_E); - } - - /* create secret information */ - sz = 0; - current = ssl->peerQSHKey; - while (current) { - schm = (QSHScheme*)XMALLOC(sizeof(QSHScheme), ssl->heap, - DYNAMIC_TYPE_QSH); - if (schm == NULL) - return MEMORY_E; - - /* initialize variables */ - schm->name = 0; - schm->PK = NULL; - schm->PKLen = 0; - schm->next = NULL; - if (ssl->QSH_secret->list == NULL) { - ssl->QSH_secret->list = schm; - } - else { - if (schmPre) - schmPre->next = schm; - } - - tmpSz = QSH_MaxSecret(current); - - if ((schm->PK = (byte*)XMALLOC(tmpSz, ssl->heap, - DYNAMIC_TYPE_SECRET)) == NULL) - return -1; - - /* store info for writing extension */ - schm->name = current->name; - - /* no key to use for encryption */ - if (tmpSz == 0) { - current = (QSHKey*)current->next; - continue; - } - - if (wc_RNG_GenerateBlock(ssl->rng, buf->buffer + offset, plainSz) - != 0) { - return -1; - } - if (QSH_Encrypt(current, buf->buffer + offset, plainSz, schm->PK, - &tmpSz) != 0) { - return -1; - } - schm->PKLen = tmpSz; - - sz += tmpSz; - offset += plainSz; - schmPre = schm; - current = (QSHKey*)current->next; - } - - return sz; -} - - -static word32 QSH_KeyGetSize(WOLFSSL* ssl) -{ - word32 sz = 0; - QSHKey* current; - - if (ssl == NULL) - return -1; - - current = ssl->peerQSHKey; - sz += OPAQUE16_LEN; /* type of extension ie 0x00 0x18 */ - sz += OPAQUE24_LEN; - /* get size of buffer needed */ - while (current) { - sz += OPAQUE16_LEN; /* scheme id */ - sz += OPAQUE16_LEN; /* encrypted key len*/ - sz += QSH_MaxSecret(current); - current = (QSHKey*)current->next; - } - - return sz; -} - - -/* handle QSH key Exchange - return 0 on success - */ -static word32 QSH_KeyExchangeWrite(WOLFSSL* ssl, byte isServer) -{ - int ret = 0; - - WOLFSSL_ENTER("QSH KeyExchange"); - - ret = QSH_GenerateSerCliSecret(ssl, isServer); - if (ret < 0) - return MEMORY_E; - - return 0; -} - -#endif /* HAVE_QSH */ - - -typedef struct SckeArgs { - byte* output; /* not allocated */ - byte* encSecret; - byte* input; - word32 encSz; - word32 length; - int sendSz; - int inputSz; -} SckeArgs; - -static void FreeSckeArgs(WOLFSSL* ssl, void* pArgs) -{ - SckeArgs* args = (SckeArgs*)pArgs; - - (void)ssl; - - if (args->encSecret) { - XFREE(args->encSecret, ssl->heap, DYNAMIC_TYPE_SECRET); - args->encSecret = NULL; - } - if (args->input) { - XFREE(args->input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - args->input = NULL; - } -} - -/* handle generation client_key_exchange (16) */ -int SendClientKeyExchange(WOLFSSL* ssl) -{ - int ret = 0; -#ifdef WOLFSSL_ASYNC_CRYPT - SckeArgs* args = (SckeArgs*)ssl->async.args; - typedef char args_test[sizeof(ssl->async.args) >= sizeof(*args) ? 1 : -1]; - (void)sizeof(args_test); -#else - SckeArgs args[1]; -#endif - - WOLFSSL_START(WC_FUNC_CLIENT_KEY_EXCHANGE_SEND); - WOLFSSL_ENTER("SendClientKeyExchange"); - -#ifdef OPENSSL_EXTRA - ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE; - ssl->cbmode = SSL_CB_MODE_WRITE; - if (ssl->CBIS != NULL) - ssl->CBIS(ssl, SSL_CB_CONNECT_LOOP, SSL_SUCCESS); -#endif - -#ifdef WOLFSSL_ASYNC_CRYPT - ret = wolfSSL_AsyncPop(ssl, &ssl->options.asyncState); - if (ret != WC_NOT_PENDING_E) { - /* Check for error */ - if (ret < 0) - goto exit_scke; - } - else -#endif - { - /* Reset state */ - ret = 0; - ssl->options.asyncState = TLS_ASYNC_BEGIN; - XMEMSET(args, 0, sizeof(SckeArgs)); - #ifdef WOLFSSL_ASYNC_CRYPT - ssl->async.freeArgs = FreeSckeArgs; - #endif - } - - switch(ssl->options.asyncState) - { - case TLS_ASYNC_BEGIN: - { - switch (ssl->specs.kea) { - #ifndef NO_RSA - case rsa_kea: - if (ssl->peerRsaKey == NULL || - ssl->peerRsaKeyPresent == 0) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - break; - #endif - #ifndef NO_DH - case diffie_hellman_kea: - if (ssl->buffers.serverDH_P.buffer == NULL || - ssl->buffers.serverDH_G.buffer == NULL || - ssl->buffers.serverDH_Pub.buffer == NULL) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - break; - #endif /* NO_DH */ - #ifndef NO_PSK - case psk_kea: - /* sanity check that PSK client callback has been set */ - if (ssl->options.client_psk_cb == NULL) { - WOLFSSL_MSG("No client PSK callback set"); - ERROR_OUT(PSK_KEY_ERROR, exit_scke); - } - break; - #endif /* NO_PSK */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - if (ssl->buffers.serverDH_P.buffer == NULL || - ssl->buffers.serverDH_G.buffer == NULL || - ssl->buffers.serverDH_Pub.buffer == NULL) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - - /* sanity check that PSK client callback has been set */ - if (ssl->options.client_psk_cb == NULL) { - WOLFSSL_MSG("No client PSK callback set"); - ERROR_OUT(PSK_KEY_ERROR, exit_scke); - } - break; - #endif /* !NO_DH && !NO_PSK */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - /* sanity check that PSK client callback has been set */ - if (ssl->options.client_psk_cb == NULL) { - WOLFSSL_MSG("No client PSK callback set"); - ERROR_OUT(PSK_KEY_ERROR, exit_scke); - } - - #ifdef HAVE_CURVE25519 - if (ssl->peerX25519KeyPresent) { - /* Check client ECC public key */ - if (!ssl->peerX25519Key || !ssl->peerX25519Key->dp) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X25519SharedSecretCb != NULL) { - break; - } - #endif - - /* create private key */ - ssl->hsType = DYNAMIC_TYPE_CURVE25519; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_scke; - } - - ret = X25519MakeKey(ssl, (curve25519_key*)ssl->hsKey, - ssl->peerX25519Key); - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->peerX448KeyPresent) { - /* Check client ECC public key */ - if (!ssl->peerX448Key) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X448SharedSecretCb != NULL) { - break; - } - #endif - - /* create private key */ - ssl->hsType = DYNAMIC_TYPE_CURVE448; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_scke; - } - - ret = X448MakeKey(ssl, (curve448_key*)ssl->hsKey, - ssl->peerX448Key); - break; - } - #endif - /* Check client ECC public key */ - if (!ssl->peerEccKey || !ssl->peerEccKeyPresent || - !ssl->peerEccKey->dp) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->EccSharedSecretCb != NULL) { - break; - } - #endif - - /* create ephemeral private key */ - ssl->hsType = DYNAMIC_TYPE_ECC; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_scke; - } - - ret = EccMakeKey(ssl, (ecc_key*)ssl->hsKey, ssl->peerEccKey); - - break; - #endif /* (HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448) && !NO_PSK */ - #ifdef HAVE_NTRU - case ntru_kea: - if (ssl->peerNtruKeyPresent == 0) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - break; - #endif /* HAVE_NTRU */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - #ifdef HAVE_ECC - ecc_key* peerKey; - #endif - - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - if (ssl->ctx->X25519SharedSecretCb != NULL) - break; - } - else - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - if (ssl->ctx->X448SharedSecretCb != NULL) - break; - } - else - #endif - if (ssl->ctx->EccSharedSecretCb != NULL) { - break; - } - #endif /* HAVE_PK_CALLBACKS */ - - #ifdef HAVE_CURVE25519 - if (ssl->peerX25519KeyPresent) { - if (!ssl->peerX25519Key || !ssl->peerX25519Key->dp) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - - /* create private key */ - ssl->hsType = DYNAMIC_TYPE_CURVE25519; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_scke; - } - - ret = X25519MakeKey(ssl, (curve25519_key*)ssl->hsKey, - ssl->peerX25519Key); - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->peerX448KeyPresent) { - if (!ssl->peerX448Key) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - - /* create private key */ - ssl->hsType = DYNAMIC_TYPE_CURVE448; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_scke; - } - - ret = X448MakeKey(ssl, (curve448_key*)ssl->hsKey, - ssl->peerX448Key); - break; - } - #endif - #ifdef HAVE_ECC - if (ssl->specs.static_ecdh) { - /* Note: EccDsa is really fixed Ecc key here */ - if (!ssl->peerEccDsaKey || !ssl->peerEccDsaKeyPresent) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - peerKey = ssl->peerEccDsaKey; - } - else { - if (!ssl->peerEccKey || !ssl->peerEccKeyPresent) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - peerKey = ssl->peerEccKey; - } - if (peerKey == NULL) { - ERROR_OUT(NO_PEER_KEY, exit_scke); - } - - /* create ephemeral private key */ - ssl->hsType = DYNAMIC_TYPE_ECC; - ret = AllocKey(ssl, ssl->hsType, &ssl->hsKey); - if (ret != 0) { - goto exit_scke; - } - - ret = EccMakeKey(ssl, (ecc_key*)ssl->hsKey, peerKey); - #endif - - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - - default: - ret = BAD_KEA_TYPE_E; - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_scke; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_BUILD; - } /* case TLS_ASYNC_BEGIN */ - FALL_THROUGH; - - case TLS_ASYNC_BUILD: - { - args->encSz = MAX_ENCRYPT_SZ; - args->encSecret = (byte*)XMALLOC(args->encSz, ssl->heap, - DYNAMIC_TYPE_SECRET); - if (args->encSecret == NULL) { - ERROR_OUT(MEMORY_E, exit_scke); - } - if (ssl->arrays->preMasterSecret == NULL) { - ssl->arrays->preMasterSz = ENCRYPT_LEN; - ssl->arrays->preMasterSecret = (byte*)XMALLOC(ENCRYPT_LEN, - ssl->heap, DYNAMIC_TYPE_SECRET); - if (ssl->arrays->preMasterSecret == NULL) { - ERROR_OUT(MEMORY_E, exit_scke); - } - XMEMSET(ssl->arrays->preMasterSecret, 0, ENCRYPT_LEN); - } - - switch(ssl->specs.kea) - { - #ifndef NO_RSA - case rsa_kea: - { - /* build PreMasterSecret with RNG data */ - #if defined(WOLFSSL_RENESAS_TSIP_TLS) && \ - !defined(NO_WOLFSSL_RENESAS_TSIP_TLS_SESSION) - if (tsip_useable(ssl)) { - ret = tsip_generatePremasterSecret( - &ssl->arrays->preMasterSecret[VERSION_SZ], - ENCRYPT_LEN - VERSION_SZ); - } else { - #endif - ret = wc_RNG_GenerateBlock(ssl->rng, - &ssl->arrays->preMasterSecret[VERSION_SZ], - SECRET_LEN - VERSION_SZ); - #if defined(WOLFSSL_RENESAS_TSIP_TLS) && \ - !defined(NO_WOLFSSL_RENESAS_TSIP_TLS_SESSION) - } - #endif - if (ret != 0) { - goto exit_scke; - } - - ssl->arrays->preMasterSecret[0] = ssl->chVersion.major; - ssl->arrays->preMasterSecret[1] = ssl->chVersion.minor; - - ssl->arrays->preMasterSz = SECRET_LEN; - - break; - } - #endif /* !NO_RSA */ - #ifndef NO_DH - case diffie_hellman_kea: - { - ssl->buffers.sig.length = ENCRYPT_LEN; - ssl->buffers.sig.buffer = (byte*)XMALLOC(ENCRYPT_LEN, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (ssl->buffers.sig.buffer == NULL) { - ERROR_OUT(MEMORY_E, exit_scke); - } - - ret = AllocKey(ssl, DYNAMIC_TYPE_DH, - (void**)&ssl->buffers.serverDH_Key); - if (ret != 0) { - goto exit_scke; - } - - #if !defined(HAVE_FIPS) && !defined(HAVE_SELFTEST) && \ - !defined(WOLFSSL_OLD_PRIME_CHECK) - if (ssl->options.dhDoKeyTest && - !ssl->options.dhKeyTested) - { - ret = wc_DhSetCheckKey(ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length, - NULL, 0, 0, ssl->rng); - if (ret != 0) { - goto exit_scke; - } - ssl->options.dhKeyTested = 1; - } - else - #endif - { - ret = wc_DhSetKey(ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length); - if (ret != 0) { - goto exit_scke; - } - } - - /* for DH, encSecret is Yc, agree is pre-master */ - ret = DhGenKeyPair(ssl, ssl->buffers.serverDH_Key, - ssl->buffers.sig.buffer, (word32*)&ssl->buffers.sig.length, - args->encSecret, &args->encSz); - - /* set the max agree result size */ - ssl->arrays->preMasterSz = ENCRYPT_LEN; - break; - } - #endif /* !NO_DH */ - #ifndef NO_PSK - case psk_kea: - { - byte* pms = ssl->arrays->preMasterSecret; - ssl->arrays->psk_keySz = ssl->options.client_psk_cb(ssl, - ssl->arrays->server_hint, ssl->arrays->client_identity, - MAX_PSK_ID_LEN, ssl->arrays->psk_key, MAX_PSK_KEY_LEN); - if (ssl->arrays->psk_keySz == 0 || - ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN) { - ERROR_OUT(PSK_KEY_ERROR, exit_scke); - } - ssl->arrays->client_identity[MAX_PSK_ID_LEN] = '\0'; /* null term */ - args->encSz = (word32)XSTRLEN(ssl->arrays->client_identity); - if (args->encSz > MAX_PSK_ID_LEN) { - ERROR_OUT(CLIENT_ID_ERROR, exit_scke); - } - XMEMCPY(args->encSecret, ssl->arrays->client_identity, - args->encSz); - - /* make psk pre master secret */ - /* length of key + length 0s + length of key + key */ - c16toa((word16)ssl->arrays->psk_keySz, pms); - pms += OPAQUE16_LEN; - XMEMSET(pms, 0, ssl->arrays->psk_keySz); - pms += ssl->arrays->psk_keySz; - c16toa((word16)ssl->arrays->psk_keySz, pms); - pms += OPAQUE16_LEN; - XMEMCPY(pms, ssl->arrays->psk_key, ssl->arrays->psk_keySz); - ssl->arrays->preMasterSz = (ssl->arrays->psk_keySz * 2) + - (2 * OPAQUE16_LEN); - ForceZero(ssl->arrays->psk_key, ssl->arrays->psk_keySz); - ssl->arrays->psk_keySz = 0; /* No further need */ - break; - } - #endif /* !NO_PSK */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - word32 esSz = 0; - args->output = args->encSecret; - - ssl->arrays->psk_keySz = ssl->options.client_psk_cb(ssl, - ssl->arrays->server_hint, ssl->arrays->client_identity, - MAX_PSK_ID_LEN, ssl->arrays->psk_key, MAX_PSK_KEY_LEN); - if (ssl->arrays->psk_keySz == 0 || - ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN) { - ERROR_OUT(PSK_KEY_ERROR, exit_scke); - } - ssl->arrays->client_identity[MAX_PSK_ID_LEN] = '\0'; /* null term */ - esSz = (word32)XSTRLEN(ssl->arrays->client_identity); - - if (esSz > MAX_PSK_ID_LEN) { - ERROR_OUT(CLIENT_ID_ERROR, exit_scke); - } - - ssl->buffers.sig.length = ENCRYPT_LEN; - ssl->buffers.sig.buffer = (byte*)XMALLOC(ENCRYPT_LEN, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (ssl->buffers.sig.buffer == NULL) { - ERROR_OUT(MEMORY_E, exit_scke); - } - - c16toa((word16)esSz, args->output); - args->output += OPAQUE16_LEN; - XMEMCPY(args->output, ssl->arrays->client_identity, esSz); - args->output += esSz; - args->encSz = esSz + OPAQUE16_LEN; - - args->length = 0; - - ret = AllocKey(ssl, DYNAMIC_TYPE_DH, - (void**)&ssl->buffers.serverDH_Key); - if (ret != 0) { - goto exit_scke; - } - - #if !defined(HAVE_FIPS) && !defined(HAVE_SELFTEST) && \ - !defined(WOLFSSL_OLD_PRIME_CHECK) - if (ssl->options.dhDoKeyTest && - !ssl->options.dhKeyTested) - { - ret = wc_DhSetCheckKey(ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length, - NULL, 0, 0, ssl->rng); - if (ret != 0) { - goto exit_scke; - } - ssl->options.dhKeyTested = 1; - } - else - #endif - { - ret = wc_DhSetKey(ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length); - if (ret != 0) { - goto exit_scke; - } - } - - /* for DH, encSecret is Yc, agree is pre-master */ - ret = DhGenKeyPair(ssl, ssl->buffers.serverDH_Key, - ssl->buffers.sig.buffer, (word32*)&ssl->buffers.sig.length, - args->output + OPAQUE16_LEN, &args->length); - break; - } - #endif /* !NO_DH && !NO_PSK */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - word32 esSz = 0; - args->output = args->encSecret; - - /* Send PSK client identity */ - ssl->arrays->psk_keySz = ssl->options.client_psk_cb(ssl, - ssl->arrays->server_hint, ssl->arrays->client_identity, - MAX_PSK_ID_LEN, ssl->arrays->psk_key, MAX_PSK_KEY_LEN); - if (ssl->arrays->psk_keySz == 0 || - ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN) { - ERROR_OUT(PSK_KEY_ERROR, exit_scke); - } - ssl->arrays->client_identity[MAX_PSK_ID_LEN] = '\0'; /* null term */ - esSz = (word32)XSTRLEN(ssl->arrays->client_identity); - if (esSz > MAX_PSK_ID_LEN) { - ERROR_OUT(CLIENT_ID_ERROR, exit_scke); - } - - /* place size and identity in output buffer sz:identity */ - c16toa((word16)esSz, args->output); - args->output += OPAQUE16_LEN; - XMEMCPY(args->output, ssl->arrays->client_identity, esSz); - args->output += esSz; - args->encSz = esSz + OPAQUE16_LEN; - - /* length is used for public key size */ - args->length = MAX_ENCRYPT_SZ; - - /* Create shared ECC key leaving room at the beginning - of buffer for size of shared key. */ - ssl->arrays->preMasterSz = ENCRYPT_LEN - OPAQUE16_LEN; - - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X25519SharedSecretCb != NULL) { - break; - } - #endif - - ret = wc_curve25519_export_public_ex( - (curve25519_key*)ssl->hsKey, - args->output + OPAQUE8_LEN, &args->length, - EC25519_LITTLE_ENDIAN); - if (ret != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_scke); - } - - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X448SharedSecretCb != NULL) { - break; - } - #endif - - ret = wc_curve448_export_public_ex( - (curve448_key*)ssl->hsKey, - args->output + OPAQUE8_LEN, &args->length, - EC448_LITTLE_ENDIAN); - if (ret != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_scke); - } - - break; - } - #endif - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->EccSharedSecretCb != NULL) { - break; - } - #endif - - /* Place ECC key in output buffer, leaving room for size */ - ret = wc_ecc_export_x963((ecc_key*)ssl->hsKey, - args->output + OPAQUE8_LEN, &args->length); - if (ret != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_scke); - } - - break; - } - #endif /* (HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448) && !NO_PSK */ - #ifdef HAVE_NTRU - case ntru_kea: - { - ret = wc_RNG_GenerateBlock(ssl->rng, - ssl->arrays->preMasterSecret, SECRET_LEN); - if (ret != 0) { - goto exit_scke; - } - - ssl->arrays->preMasterSz = SECRET_LEN; - args->encSz = MAX_ENCRYPT_SZ; - break; - } - #endif /* HAVE_NTRU */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - ssl->arrays->preMasterSz = ENCRYPT_LEN; - - #ifdef HAVE_CURVE25519 - if (ssl->hsType == DYNAMIC_TYPE_CURVE25519) { - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X25519SharedSecretCb != NULL) { - break; - } - #endif - - ret = wc_curve25519_export_public_ex( - (curve25519_key*)ssl->hsKey, - args->encSecret + OPAQUE8_LEN, &args->encSz, - EC25519_LITTLE_ENDIAN); - if (ret != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_scke); - } - - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->hsType == DYNAMIC_TYPE_CURVE448) { - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X448SharedSecretCb != NULL) { - break; - } - #endif - - ret = wc_curve448_export_public_ex( - (curve448_key*)ssl->hsKey, - args->encSecret + OPAQUE8_LEN, &args->encSz, - EC448_LITTLE_ENDIAN); - if (ret != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_scke); - } - - break; - } - #endif - #if defined(HAVE_ECC) && defined(HAVE_ECC_KEY_EXPORT) - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->EccSharedSecretCb != NULL) { - break; - } - #endif - - /* Place ECC key in buffer, leaving room for size */ - ret = wc_ecc_export_x963((ecc_key*)ssl->hsKey, - args->encSecret + OPAQUE8_LEN, &args->encSz); - if (ret != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_scke); - } - #endif /* HAVE_ECC */ - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - - default: - ret = BAD_KEA_TYPE_E; - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_scke; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_DO; - } /* case TLS_ASYNC_BUILD */ - FALL_THROUGH; - - case TLS_ASYNC_DO: - { - switch(ssl->specs.kea) - { - #ifndef NO_RSA - case rsa_kea: - { - #if defined(WOLFSSL_RENESAS_TSIP_TLS) && \ - !defined(NO_WOLFSSL_RENESAS_TSIP_TLS_SESSION) - if (tsip_useable(ssl) && - wc_RsaEncryptSize(ssl->peerRsaKey) == 256) { - ret = tsip_generateEncryptPreMasterSecret(ssl, - args->encSecret, - &args->encSz); - - } else - #endif - ret = RsaEnc(ssl, - ssl->arrays->preMasterSecret, SECRET_LEN, - args->encSecret, &args->encSz, - ssl->peerRsaKey, - #if defined(HAVE_PK_CALLBACKS) - &ssl->buffers.peerRsaKey - #else - NULL - #endif - ); - - break; - } - #endif /* !NO_RSA */ - #ifndef NO_DH - case diffie_hellman_kea: - { - ret = DhAgree(ssl, ssl->buffers.serverDH_Key, - ssl->buffers.sig.buffer, ssl->buffers.sig.length, - ssl->buffers.serverDH_Pub.buffer, - ssl->buffers.serverDH_Pub.length, - ssl->arrays->preMasterSecret, - &ssl->arrays->preMasterSz); - break; - } - #endif /* !NO_DH */ - #ifndef NO_PSK - case psk_kea: - { - break; - } - #endif /* !NO_PSK */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - ret = DhAgree(ssl, ssl->buffers.serverDH_Key, - ssl->buffers.sig.buffer, ssl->buffers.sig.length, - ssl->buffers.serverDH_Pub.buffer, - ssl->buffers.serverDH_Pub.length, - ssl->arrays->preMasterSecret + OPAQUE16_LEN, - &ssl->arrays->preMasterSz); - break; - } - #endif /* !NO_DH && !NO_PSK */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - #ifdef HAVE_CURVE25519 - if (ssl->peerX25519KeyPresent) { - ret = X25519SharedSecret(ssl, - (curve25519_key*)ssl->hsKey, ssl->peerX25519Key, - args->output + OPAQUE8_LEN, &args->length, - ssl->arrays->preMasterSecret + OPAQUE16_LEN, - &ssl->arrays->preMasterSz, - WOLFSSL_CLIENT_END - ); - if (!ssl->specs.static_ecdh - #ifdef WOLFSSL_ASYNC_CRYPT - && ret != WC_PENDING_E - #endif - ) { - FreeKey(ssl, DYNAMIC_TYPE_CURVE25519, - (void**)&ssl->peerX25519Key); - ssl->peerX25519KeyPresent = 0; - } - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->peerX448KeyPresent) { - ret = X448SharedSecret(ssl, - (curve448_key*)ssl->hsKey, ssl->peerX448Key, - args->output + OPAQUE8_LEN, &args->length, - ssl->arrays->preMasterSecret + OPAQUE16_LEN, - &ssl->arrays->preMasterSz, - WOLFSSL_CLIENT_END - ); - if (!ssl->specs.static_ecdh - #ifdef WOLFSSL_ASYNC_CRYPT - && ret != WC_PENDING_E - #endif - ) { - FreeKey(ssl, DYNAMIC_TYPE_CURVE448, - (void**)&ssl->peerX448Key); - ssl->peerX448KeyPresent = 0; - } - break; - } - #endif - ret = EccSharedSecret(ssl, - (ecc_key*)ssl->hsKey, ssl->peerEccKey, - args->output + OPAQUE8_LEN, &args->length, - ssl->arrays->preMasterSecret + OPAQUE16_LEN, - &ssl->arrays->preMasterSz, - WOLFSSL_CLIENT_END - ); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret != WC_PENDING_E) - #endif - { - FreeKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; - } - break; - } - #endif /* (HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448) && !NO_PSK */ - #ifdef HAVE_NTRU - case ntru_kea: - { - word32 rc; - word16 tmpEncSz = (word16)args->encSz; - DRBG_HANDLE drbg; - - rc = ntru_crypto_drbg_external_instantiate(GetEntropy, &drbg); - if (rc != DRBG_OK) { - ERROR_OUT(NTRU_DRBG_ERROR, exit_scke); - } - rc = ntru_crypto_ntru_encrypt(drbg, ssl->peerNtruKeyLen, - ssl->peerNtruKey, - ssl->arrays->preMasterSz, - ssl->arrays->preMasterSecret, - &tmpEncSz, - args->encSecret); - args->encSz = tmpEncSz; - ntru_crypto_drbg_uninstantiate(drbg); - if (rc != NTRU_OK) { - ERROR_OUT(NTRU_ENCRYPT_ERROR, exit_scke); - } - ret = 0; - break; - } - #endif /* HAVE_NTRU */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - #ifdef HAVE_ECC - ecc_key* peerKey; - #endif - - #ifdef HAVE_CURVE25519 - if (ssl->peerX25519KeyPresent) { - ret = X25519SharedSecret(ssl, - (curve25519_key*)ssl->hsKey, ssl->peerX25519Key, - args->encSecret + OPAQUE8_LEN, &args->encSz, - ssl->arrays->preMasterSecret, - &ssl->arrays->preMasterSz, - WOLFSSL_CLIENT_END - ); - if (!ssl->specs.static_ecdh - #ifdef WOLFSSL_ASYNC_CRYPT - && ret != WC_PENDING_E - #endif - ) { - FreeKey(ssl, DYNAMIC_TYPE_CURVE25519, - (void**)&ssl->peerX25519Key); - ssl->peerX25519KeyPresent = 0; - } - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->peerX448KeyPresent) { - ret = X448SharedSecret(ssl, - (curve448_key*)ssl->hsKey, ssl->peerX448Key, - args->encSecret + OPAQUE8_LEN, &args->encSz, - ssl->arrays->preMasterSecret, - &ssl->arrays->preMasterSz, - WOLFSSL_CLIENT_END - ); - if (!ssl->specs.static_ecdh - #ifdef WOLFSSL_ASYNC_CRYPT - && ret != WC_PENDING_E - #endif - ) { - FreeKey(ssl, DYNAMIC_TYPE_CURVE448, - (void**)&ssl->peerX448Key); - ssl->peerX448KeyPresent = 0; - } - break; - } - #endif - #ifdef HAVE_ECC - peerKey = (ssl->specs.static_ecdh) ? - ssl->peerEccDsaKey : ssl->peerEccKey; - - ret = EccSharedSecret(ssl, - (ecc_key*)ssl->hsKey, peerKey, - args->encSecret + OPAQUE8_LEN, &args->encSz, - ssl->arrays->preMasterSecret, - &ssl->arrays->preMasterSz, - WOLFSSL_CLIENT_END - ); - if (!ssl->specs.static_ecdh - #ifdef WOLFSSL_ASYNC_CRYPT - && ret != WC_PENDING_E - #endif - && !ssl->options.keepResources) { - FreeKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; - } - #endif - - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - - default: - ret = BAD_KEA_TYPE_E; - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_scke; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_VERIFY; - } /* case TLS_ASYNC_DO */ - FALL_THROUGH; - - case TLS_ASYNC_VERIFY: - { - switch(ssl->specs.kea) - { - #ifndef NO_RSA - case rsa_kea: - { - break; - } - #endif /* !NO_RSA */ - #ifndef NO_DH - case diffie_hellman_kea: - { - break; - } - #endif /* !NO_DH */ - #ifndef NO_PSK - case psk_kea: - { - break; - } - #endif /* !NO_PSK */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - byte* pms = ssl->arrays->preMasterSecret; - - /* validate args */ - if (args->output == NULL || args->length == 0) { - ERROR_OUT(BAD_FUNC_ARG, exit_scke); - } - - c16toa((word16)args->length, args->output); - args->encSz += args->length + OPAQUE16_LEN; - c16toa((word16)ssl->arrays->preMasterSz, pms); - ssl->arrays->preMasterSz += OPAQUE16_LEN; - pms += ssl->arrays->preMasterSz; - - /* make psk pre master secret */ - /* length of key + length 0s + length of key + key */ - c16toa((word16)ssl->arrays->psk_keySz, pms); - pms += OPAQUE16_LEN; - XMEMCPY(pms, ssl->arrays->psk_key, ssl->arrays->psk_keySz); - ssl->arrays->preMasterSz += - ssl->arrays->psk_keySz + OPAQUE16_LEN; - ForceZero(ssl->arrays->psk_key, ssl->arrays->psk_keySz); - ssl->arrays->psk_keySz = 0; /* No further need */ - break; - } - #endif /* !NO_DH && !NO_PSK */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - byte* pms = ssl->arrays->preMasterSecret; - - /* validate args */ - if (args->output == NULL || args->length > ENCRYPT_LEN) { - ERROR_OUT(BAD_FUNC_ARG, exit_scke); - } - - /* place size of public key in output buffer */ - *args->output = (byte)args->length; - args->encSz += args->length + OPAQUE8_LEN; - - /* Create pre master secret is the concatenation of - eccSize + eccSharedKey + pskSize + pskKey */ - c16toa((word16)ssl->arrays->preMasterSz, pms); - ssl->arrays->preMasterSz += OPAQUE16_LEN; - pms += ssl->arrays->preMasterSz; - - c16toa((word16)ssl->arrays->psk_keySz, pms); - pms += OPAQUE16_LEN; - XMEMCPY(pms, ssl->arrays->psk_key, ssl->arrays->psk_keySz); - ssl->arrays->preMasterSz += - ssl->arrays->psk_keySz + OPAQUE16_LEN; - - ForceZero(ssl->arrays->psk_key, ssl->arrays->psk_keySz); - ssl->arrays->psk_keySz = 0; /* No further need */ - break; - } - #endif /* (HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448) && !NO_PSK */ - #ifdef HAVE_NTRU - case ntru_kea: - { - break; - } - #endif /* HAVE_NTRU */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - /* place size of public key in buffer */ - *args->encSecret = (byte)args->encSz; - args->encSz += OPAQUE8_LEN; - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - - default: - ret = BAD_KEA_TYPE_E; - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_scke; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_FINALIZE; - } /* case TLS_ASYNC_VERIFY */ - FALL_THROUGH; - - case TLS_ASYNC_FINALIZE: - { - word32 tlsSz = 0; - word32 idx = 0; - - #ifdef HAVE_QSH - word32 qshSz = 0; - if (ssl->peerQSHKeyPresent) { - qshSz = QSH_KeyGetSize(ssl); - } - #endif - - if (ssl->options.tls || ssl->specs.kea == diffie_hellman_kea) { - tlsSz = 2; - } - - if (ssl->specs.kea == ecc_diffie_hellman_kea || - ssl->specs.kea == dhe_psk_kea || - ssl->specs.kea == ecdhe_psk_kea) { /* always off */ - tlsSz = 0; - } - - idx = HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ; - args->sendSz = args->encSz + tlsSz + idx; - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - idx += DTLS_HANDSHAKE_EXTRA + DTLS_RECORD_EXTRA; - args->sendSz += DTLS_HANDSHAKE_EXTRA + DTLS_RECORD_EXTRA; - } - #endif - - if (IsEncryptionOn(ssl, 1)) { - args->sendSz += MAX_MSG_EXTRA; - } - - #ifdef HAVE_QSH - args->encSz += qshSz; - args->sendSz += qshSz; - #endif - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, args->sendSz)) != 0) { - goto exit_scke; - } - - /* get output buffer */ - args->output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - #ifdef HAVE_QSH - if (ssl->peerQSHKeyPresent) { - byte idxSave = idx; - idx = args->sendSz - qshSz; - - if (QSH_KeyExchangeWrite(ssl, 0) != 0) { - ERROR_OUT(MEMORY_E, exit_scke); - } - - /* extension type */ - c16toa(TLSX_QUANTUM_SAFE_HYBRID, args->output + idx); - idx += OPAQUE16_LEN; - - /* write to output and check amount written */ - if (TLSX_QSHPK_Write(ssl->QSH_secret->list, - args->output + idx) > qshSz - OPAQUE16_LEN) { - ERROR_OUT(MEMORY_E, exit_scke); - } - - idx = idxSave; - } - #endif - - AddHeaders(args->output, args->encSz + tlsSz, client_key_exchange, ssl); - - #ifdef HAVE_QSH - if (ssl->peerQSHKeyPresent) { - args->encSz -= qshSz; - } - #endif - if (tlsSz) { - c16toa((word16)args->encSz, &args->output[idx]); - idx += OPAQUE16_LEN; - } - XMEMCPY(args->output + idx, args->encSecret, args->encSz); - idx += args->encSz; - - if (IsEncryptionOn(ssl, 1)) { - args->inputSz = idx - RECORD_HEADER_SZ; /* buildmsg adds rechdr */ - args->input = (byte*)XMALLOC(args->inputSz, ssl->heap, - DYNAMIC_TYPE_IN_BUFFER); - if (args->input == NULL) { - ERROR_OUT(MEMORY_E, exit_scke); - } - - XMEMCPY(args->input, args->output + RECORD_HEADER_SZ, - args->inputSz); - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_END; - } /* case TLS_ASYNC_FINALIZE */ - FALL_THROUGH; - - case TLS_ASYNC_END: - { - if (IsEncryptionOn(ssl, 1)) { - ret = BuildMessage(ssl, args->output, args->sendSz, - args->input, args->inputSz, handshake, 1, 0, 0); - XFREE(args->input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - args->input = NULL; /* make sure its not double free'd on cleanup */ - - if (ret >= 0) { - args->sendSz = ret; - ret = 0; - } - } - else { - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - #endif - ret = HashOutput(ssl, args->output, args->sendSz, 0); - } - - if (ret != 0) { - goto exit_scke; - } - - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - if ((ret = DtlsMsgPoolSave(ssl, args->output, args->sendSz)) != 0) { - goto exit_scke; - } - } - #endif - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "ClientKeyExchange"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "ClientKeyExchange", handshake, - args->output, args->sendSz, WRITE_PROTO, ssl->heap); - #endif - - ssl->buffers.outputBuffer.length += args->sendSz; - - if (!ssl->options.groupMessages) { - ret = SendBuffered(ssl); - } - if (ret == 0 || ret == WANT_WRITE) { - int tmpRet = MakeMasterSecret(ssl); - if (tmpRet != 0) { - ret = tmpRet; /* save WANT_WRITE unless more serious */ - } - ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE; - } - break; - } - default: - ret = INPUT_CASE_ERROR; - } /* switch(ssl->options.asyncState) */ - -exit_scke: - - WOLFSSL_LEAVE("SendClientKeyExchange", ret); - WOLFSSL_END(WC_FUNC_CLIENT_KEY_EXCHANGE_SEND); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* Handle async operation */ - if (ret == WC_PENDING_E) - return ret; -#endif - - /* No further need for PMS */ - if (ssl->arrays->preMasterSecret != NULL) { - ForceZero(ssl->arrays->preMasterSecret, ssl->arrays->preMasterSz); - } - ssl->arrays->preMasterSz = 0; - - /* Final cleanup */ - FreeSckeArgs(ssl, args); - FreeKeyExchange(ssl); - - return ret; -} - -#endif /* !WOLFSSL_NO_TLS12 */ - -#ifndef NO_CERTS - -#ifdef HAVE_PK_CALLBACKS - int GetPrivateKeySigSize(WOLFSSL* ssl) - { - int sigSz = 0; - - if (ssl == NULL) - return 0; - - switch (ssl->buffers.keyType) { - #ifndef NO_RSA - #ifdef WC_RSA_PSS - case rsa_pss_sa_algo: - #endif - case rsa_sa_algo: - sigSz = ssl->buffers.keySz; - ssl->hsType = DYNAMIC_TYPE_RSA; - break; - #endif - #ifdef HAVE_ECC - case ecc_dsa_sa_algo: - sigSz = wc_ecc_sig_size_calc(ssl->buffers.keySz); - ssl->hsType = DYNAMIC_TYPE_ECC; - break; - #endif - #ifdef HAVE_ED25519 - case ed25519_sa_algo: - sigSz = ED25519_SIG_SIZE; /* fixed known value */ - ssl->hsType = DYNAMIC_TYPE_ED25519; - break; - #endif - #ifdef HAVE_ED448 - case ed448_sa_algo: - sigSz = ED448_SIG_SIZE; /* fixed known value */ - ssl->hsType = DYNAMIC_TYPE_ED448; - break; - #endif - default: - break; - } - return sigSz; - } -#endif /* HAVE_PK_CALLBACKS */ - -#ifndef WOLFSSL_NO_TLS12 - -#ifndef WOLFSSL_NO_CLIENT_AUTH -typedef struct ScvArgs { - byte* output; /* not allocated */ -#ifndef NO_RSA - byte* verifySig; -#endif - byte* verify; /* not allocated */ - byte* input; - word32 idx; - word32 extraSz; - word32 sigSz; - int sendSz; - int inputSz; - word16 length; - byte sigAlgo; -} ScvArgs; - -static void FreeScvArgs(WOLFSSL* ssl, void* pArgs) -{ - ScvArgs* args = (ScvArgs*)pArgs; - - (void)ssl; - -#ifndef NO_RSA - if (args->verifySig) { - XFREE(args->verifySig, ssl->heap, DYNAMIC_TYPE_SIGNATURE); - args->verifySig = NULL; - } -#endif - if (args->input) { - XFREE(args->input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - args->input = NULL; - } -} - -/* handle generation of certificate_verify (15) */ -int SendCertificateVerify(WOLFSSL* ssl) -{ - int ret = 0; -#ifdef WOLFSSL_ASYNC_CRYPT - ScvArgs* args = (ScvArgs*)ssl->async.args; - typedef char args_test[sizeof(ssl->async.args) >= sizeof(*args) ? 1 : -1]; - (void)sizeof(args_test); -#else - ScvArgs args[1]; -#endif - - WOLFSSL_START(WC_FUNC_CERTIFICATE_VERIFY_SEND); - WOLFSSL_ENTER("SendCertificateVerify"); - -#ifdef WOLFSSL_ASYNC_CRYPT - ret = wolfSSL_AsyncPop(ssl, &ssl->options.asyncState); - if (ret != WC_NOT_PENDING_E) { - /* Check for error */ - if (ret < 0) - goto exit_scv; - } - else -#endif - { - /* Reset state */ - ret = 0; - ssl->options.asyncState = TLS_ASYNC_BEGIN; - XMEMSET(args, 0, sizeof(ScvArgs)); - #ifdef WOLFSSL_ASYNC_CRYPT - ssl->async.freeArgs = FreeScvArgs; - #endif - } - - switch(ssl->options.asyncState) - { - case TLS_ASYNC_BEGIN: - { - if (ssl->options.sendVerify == SEND_BLANK_CERT) { - return 0; /* sent blank cert, can't verify */ - } - - args->sendSz = MAX_CERT_VERIFY_SZ + MAX_MSG_EXTRA; - if (IsEncryptionOn(ssl, 1)) { - args->sendSz += MAX_MSG_EXTRA; - } - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, args->sendSz)) != 0) { - goto exit_scv; - } - - /* get output buffer */ - args->output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_BUILD; - } /* case TLS_ASYNC_BEGIN */ - FALL_THROUGH; - - case TLS_ASYNC_BUILD: - { - ret = BuildCertHashes(ssl, &ssl->hsHashes->certHashes); - if (ret != 0) { - goto exit_scv; - } - - if (ssl->buffers.key == NULL) { - #ifdef HAVE_PK_CALLBACKS - if (wolfSSL_CTX_IsPrivatePkSet(ssl->ctx)) - args->length = GetPrivateKeySigSize(ssl); - else - #endif - ERROR_OUT(NO_PRIVATE_KEY, exit_scv); - } - else { - /* Decode private key. */ - ret = DecodePrivateKey(ssl, &args->length); - if (ret != 0) { - goto exit_scv; - } - } - - if (args->length == 0) { - ERROR_OUT(NO_PRIVATE_KEY, exit_scv); - } - - /* idx is used to track verify pointer offset to output */ - args->idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - args->verify = &args->output[RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ]; - args->extraSz = 0; /* tls 1.2 hash/sig */ - - /* build encoded signature buffer */ - ssl->buffers.sig.length = MAX_ENCODED_SIG_SZ; - ssl->buffers.sig.buffer = (byte*)XMALLOC(ssl->buffers.sig.length, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (ssl->buffers.sig.buffer == NULL) { - ERROR_OUT(MEMORY_E, exit_scv); - } - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - args->idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - args->verify += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - } - #endif - - #ifndef NO_OLD_TLS - #ifndef NO_SHA - /* old tls default */ - SetDigest(ssl, sha_mac); - #endif - #else - #ifndef NO_SHA256 - /* new tls default */ - SetDigest(ssl, sha256_mac); - #endif - #endif /* !NO_OLD_TLS */ - - if (ssl->hsType == DYNAMIC_TYPE_RSA) { - #ifdef WC_RSA_PSS - if (IsAtLeastTLSv1_2(ssl) && - (ssl->pssAlgo & (1 << ssl->suites->hashAlgo))) { - args->sigAlgo = rsa_pss_sa_algo; - } - else - #endif - args->sigAlgo = rsa_sa_algo; - } - else if (ssl->hsType == DYNAMIC_TYPE_ECC) - args->sigAlgo = ecc_dsa_sa_algo; - else if (ssl->hsType == DYNAMIC_TYPE_ED25519) - args->sigAlgo = ed25519_sa_algo; - else if (ssl->hsType == DYNAMIC_TYPE_ED448) - args->sigAlgo = ed448_sa_algo; - - if (IsAtLeastTLSv1_2(ssl)) { - EncodeSigAlg(ssl->suites->hashAlgo, args->sigAlgo, - args->verify); - args->extraSz = HASH_SIG_SIZE; - SetDigest(ssl, ssl->suites->hashAlgo); - } - #ifndef NO_OLD_TLS - else { - /* if old TLS load MD5 and SHA hash as value to sign */ - XMEMCPY(ssl->buffers.sig.buffer, - (byte*)ssl->hsHashes->certHashes.md5, FINISHED_SZ); - } - #endif - - #ifndef NO_RSA - if (args->sigAlgo == rsa_sa_algo) { - ssl->buffers.sig.length = FINISHED_SZ; - args->sigSz = ENCRYPT_LEN; - - if (IsAtLeastTLSv1_2(ssl)) { - ssl->buffers.sig.length = wc_EncodeSignature( - ssl->buffers.sig.buffer, ssl->buffers.digest.buffer, - ssl->buffers.digest.length, - TypeHash(ssl->suites->hashAlgo)); - } - - /* prepend hdr */ - c16toa(args->length, args->verify + args->extraSz); - } - #ifdef WC_RSA_PSS - else if (args->sigAlgo == rsa_pss_sa_algo) { - XMEMCPY(ssl->buffers.sig.buffer, ssl->buffers.digest.buffer, - ssl->buffers.digest.length); - ssl->buffers.sig.length = ssl->buffers.digest.length; - args->sigSz = ENCRYPT_LEN; - - /* prepend hdr */ - c16toa(args->length, args->verify + args->extraSz); - } - #endif - #endif /* !NO_RSA */ - #if defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH) - if (args->sigAlgo == ed25519_sa_algo) { - ret = Ed25519CheckPubKey(ssl); - if (ret != 0) - goto exit_scv; - } - #endif /* HAVE_ED25519 && !NO_ED25519_CLIENT_AUTH */ - #if defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH) - if (args->sigAlgo == ed448_sa_algo) { - ret = Ed448CheckPubKey(ssl); - if (ret != 0) - goto exit_scv; - } - #endif /* HAVE_ED448 && !NO_ED448_CLIENT_AUTH */ - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_DO; - } /* case TLS_ASYNC_BUILD */ - FALL_THROUGH; - - case TLS_ASYNC_DO: - { - #ifdef HAVE_ECC - if (ssl->hsType == DYNAMIC_TYPE_ECC) { - ecc_key* key = (ecc_key*)ssl->hsKey; - - ret = EccSign(ssl, - ssl->buffers.digest.buffer, ssl->buffers.digest.length, - ssl->buffers.sig.buffer, (word32*)&ssl->buffers.sig.length, - key, - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.key - #else - NULL - #endif - ); - } - #endif /* HAVE_ECC */ - #if defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH) - if (ssl->hsType == DYNAMIC_TYPE_ED25519) { - ed25519_key* key = (ed25519_key*)ssl->hsKey; - - ret = Ed25519Sign(ssl, - ssl->hsHashes->messages, ssl->hsHashes->length, - ssl->buffers.sig.buffer, (word32*)&ssl->buffers.sig.length, - key, - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.key - #else - NULL - #endif - ); - } - #endif /* HAVE_ED25519 && !NO_ED25519_CLIENT_AUTH */ - #if defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH) - if (ssl->hsType == DYNAMIC_TYPE_ED448) { - ed448_key* key = (ed448_key*)ssl->hsKey; - - ret = Ed448Sign(ssl, - ssl->hsHashes->messages, ssl->hsHashes->length, - ssl->buffers.sig.buffer, (word32*)&ssl->buffers.sig.length, - key, - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.key - #else - NULL - #endif - ); - } - #endif /* HAVE_ED448 && !NO_ED448_CLIENT_AUTH */ - #ifndef NO_RSA - if (ssl->hsType == DYNAMIC_TYPE_RSA) { - RsaKey* key = (RsaKey*)ssl->hsKey; - - /* restore verify pointer */ - args->verify = &args->output[args->idx]; - - ret = RsaSign(ssl, - ssl->buffers.sig.buffer, ssl->buffers.sig.length, - args->verify + args->extraSz + VERIFY_HEADER, &args->sigSz, - args->sigAlgo, ssl->suites->hashAlgo, key, - ssl->buffers.key - ); - } - #endif /* !NO_RSA */ - - /* Check for error */ - if (ret != 0) { - goto exit_scv; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_VERIFY; - } /* case TLS_ASYNC_DO */ - FALL_THROUGH; - - case TLS_ASYNC_VERIFY: - { - /* restore verify pointer */ - args->verify = &args->output[args->idx]; - - switch (ssl->hsType) { - #if defined(HAVE_ECC) || defined(HAVE_ED25519) || defined(HAVE_ED448) - #ifdef HAVE_ECC - case DYNAMIC_TYPE_ECC: - #endif - #ifdef HAVE_ED25519 - case DYNAMIC_TYPE_ED25519: - #endif - #ifdef HAVE_ED448 - case DYNAMIC_TYPE_ED448: - #endif - args->length = (word16)ssl->buffers.sig.length; - /* prepend hdr */ - c16toa(args->length, args->verify + args->extraSz); - XMEMCPY(args->verify + args->extraSz + VERIFY_HEADER, - ssl->buffers.sig.buffer, ssl->buffers.sig.length); - break; - #endif - #ifndef NO_RSA - case DYNAMIC_TYPE_RSA: - { - RsaKey* key = (RsaKey*)ssl->hsKey; - - if (args->verifySig == NULL) { - args->verifySig = (byte*)XMALLOC(args->sigSz, ssl->heap, - DYNAMIC_TYPE_SIGNATURE); - if (args->verifySig == NULL) { - ERROR_OUT(MEMORY_E, exit_scv); - } - XMEMCPY(args->verifySig, args->verify + args->extraSz + - VERIFY_HEADER, args->sigSz); - } - - /* check for signature faults */ - ret = VerifyRsaSign(ssl, - args->verifySig, args->sigSz, - ssl->buffers.sig.buffer, ssl->buffers.sig.length, - args->sigAlgo, ssl->suites->hashAlgo, key, - ssl->buffers.key - ); - break; - } - #endif /* !NO_RSA */ - default: - break; - } - - /* Check for error */ - if (ret != 0) { - goto exit_scv; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_FINALIZE; - } /* case TLS_ASYNC_VERIFY */ - FALL_THROUGH; - - case TLS_ASYNC_FINALIZE: - { - if (args->output == NULL) { - ERROR_OUT(BUFFER_ERROR, exit_scv); - } - AddHeaders(args->output, (word32)args->length + args->extraSz + - VERIFY_HEADER, certificate_verify, ssl); - - args->sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ + - (word32)args->length + args->extraSz + VERIFY_HEADER; - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - args->sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - } - #endif - - if (IsEncryptionOn(ssl, 1)) { - args->inputSz = args->sendSz - RECORD_HEADER_SZ; - /* build msg adds rec hdr */ - args->input = (byte*)XMALLOC(args->inputSz, ssl->heap, - DYNAMIC_TYPE_IN_BUFFER); - if (args->input == NULL) { - ERROR_OUT(MEMORY_E, exit_scv); - } - - XMEMCPY(args->input, args->output + RECORD_HEADER_SZ, - args->inputSz); - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_END; - } /* case TLS_ASYNC_FINALIZE */ - FALL_THROUGH; - - case TLS_ASYNC_END: - { - if (IsEncryptionOn(ssl, 1)) { - ret = BuildMessage(ssl, args->output, - MAX_CERT_VERIFY_SZ + MAX_MSG_EXTRA, - args->input, args->inputSz, handshake, - 1, 0, 1); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) - goto exit_scv; - #endif - - XFREE(args->input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - args->input = NULL; /* make sure its not double free'd on cleanup */ - - if (ret >= 0) { - args->sendSz = ret; - ret = 0; - } - } - else { - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - #endif - ret = HashOutput(ssl, args->output, args->sendSz, 0); - } - - if (ret != 0) { - goto exit_scv; - } - - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - ret = DtlsMsgPoolSave(ssl, args->output, args->sendSz); - } - #endif - - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "CertificateVerify"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "CertificateVerify", handshake, - args->output, args->sendSz, WRITE_PROTO, ssl->heap); - #endif - - ssl->buffers.outputBuffer.length += args->sendSz; - - if (!ssl->options.groupMessages) { - ret = SendBuffered(ssl); - } - break; - } - default: - ret = INPUT_CASE_ERROR; - } /* switch(ssl->options.asyncState) */ - -exit_scv: - - WOLFSSL_LEAVE("SendCertificateVerify", ret); - WOLFSSL_END(WC_FUNC_CERTIFICATE_VERIFY_SEND); - -#ifdef WOLFSSL_ASYNC_CRYPT - /* Handle async operation */ - if (ret == WC_PENDING_E) { - return ret; - } -#endif /* WOLFSSL_ASYNC_CRYPT */ - - /* Digest is not allocated, so do this to prevent free */ - ssl->buffers.digest.buffer = NULL; - ssl->buffers.digest.length = 0; - - /* Final cleanup */ - FreeScvArgs(ssl, args); - FreeKeyExchange(ssl); - - return ret; -} -#endif /* WOLFSSL_NO_CLIENT_AUTH */ - -#endif /* WOLFSSL_NO_TLS12 */ - -#endif /* NO_CERTS */ - - -#ifdef HAVE_SESSION_TICKET -int SetTicket(WOLFSSL* ssl, const byte* ticket, word32 length) -{ - /* Free old dynamic ticket if we already had one */ - if (ssl->session.isDynamic) { - XFREE(ssl->session.ticket, ssl->heap, DYNAMIC_TYPE_SESSION_TICK); - ssl->session.ticket = ssl->session.staticTicket; - ssl->session.isDynamic = 0; - } - - if (length > sizeof(ssl->session.staticTicket)) { - byte* sessionTicket = - (byte*)XMALLOC(length, ssl->heap, DYNAMIC_TYPE_SESSION_TICK); - if (sessionTicket == NULL) - return MEMORY_E; - ssl->session.ticket = sessionTicket; - ssl->session.isDynamic = 1; - } - ssl->session.ticketLen = (word16)length; - - if (length > 0) { - XMEMCPY(ssl->session.ticket, ticket, length); - if (ssl->session_ticket_cb != NULL) { - ssl->session_ticket_cb(ssl, - ssl->session.ticket, ssl->session.ticketLen, - ssl->session_ticket_ctx); - } - /* Create a fake sessionID based on the ticket, this will - * supersede the existing session cache info. */ - ssl->options.haveSessionId = 1; -#ifdef WOLFSSL_TLS13 - if (ssl->options.tls1_3) { - XMEMCPY(ssl->session.sessionID, - ssl->session.ticket + length - ID_LEN, ID_LEN); - } - else -#endif - XMEMCPY(ssl->arrays->sessionID, - ssl->session.ticket + length - ID_LEN, ID_LEN); - } - - return 0; -} - -#ifndef WOLFSSL_NO_TLS12 - -/* handle processing of session_ticket (4) */ -static int DoSessionTicket(WOLFSSL* ssl, const byte* input, word32* inOutIdx, - word32 size) -{ - word32 begin = *inOutIdx; - word32 lifetime; - word16 length; - int ret; - - if (ssl->expect_session_ticket == 0) { - WOLFSSL_MSG("Unexpected session ticket"); - return SESSION_TICKET_EXPECT_E; - } - - if (OPAQUE32_LEN > size) - return BUFFER_ERROR; - - ato32(input + *inOutIdx, &lifetime); - *inOutIdx += OPAQUE32_LEN; - - if ((*inOutIdx - begin) + OPAQUE16_LEN > size) - return BUFFER_ERROR; - - ato16(input + *inOutIdx, &length); - *inOutIdx += OPAQUE16_LEN; - - if ((*inOutIdx - begin) + length > size) - return BUFFER_ERROR; - - if ((ret = SetTicket(ssl, input + *inOutIdx, length)) != 0) - return ret; - *inOutIdx += length; - if (length > 0) { - ssl->timeout = lifetime; -#ifndef NO_SESSION_CACHE - AddSession(ssl); -#endif - } - - if (IsEncryptionOn(ssl, 0)) { - *inOutIdx += ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - *inOutIdx += MacSize(ssl); - #endif - } - - ssl->expect_session_ticket = 0; - - return 0; -} - -#endif /* !WOLFSSL_NO_TLS12 */ - -#endif /* HAVE_SESSION_TICKET */ - -#endif /* NO_WOLFSSL_CLIENT */ - -#ifdef HAVE_ECC - /* returns the WOLFSSL_* version of the curve from the OID sum */ - word16 GetCurveByOID(int oidSum) { - switch(oidSum) { - #if defined(HAVE_ECC160) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case ECC_SECP160R1_OID: - return WOLFSSL_ECC_SECP160R1; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_SECPR2 - case ECC_SECP160R2_OID: - return WOLFSSL_ECC_SECP160R2; - #endif /* HAVE_ECC_SECPR2 */ - #ifdef HAVE_ECC_KOBLITZ - case ECC_SECP160K1_OID: - return WOLFSSL_ECC_SECP160K1; - #endif /* HAVE_ECC_KOBLITZ */ - #endif - #if defined(HAVE_ECC192) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case ECC_SECP192R1_OID: - return WOLFSSL_ECC_SECP192R1; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_KOBLITZ - case ECC_SECP192K1_OID: - return WOLFSSL_ECC_SECP192K1; - #endif /* HAVE_ECC_KOBLITZ */ - #endif - #if defined(HAVE_ECC224) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case ECC_SECP224R1_OID: - return WOLFSSL_ECC_SECP224R1; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_KOBLITZ - case ECC_SECP224K1_OID: - return WOLFSSL_ECC_SECP224K1; - #endif /* HAVE_ECC_KOBLITZ */ - #endif - #if !defined(NO_ECC256) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case ECC_SECP256R1_OID: - return WOLFSSL_ECC_SECP256R1; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_KOBLITZ - case ECC_SECP256K1_OID: - return WOLFSSL_ECC_SECP256K1; - #endif /* HAVE_ECC_KOBLITZ */ - #ifdef HAVE_ECC_BRAINPOOL - case ECC_BRAINPOOLP256R1_OID: - return WOLFSSL_ECC_BRAINPOOLP256R1; - #endif /* HAVE_ECC_BRAINPOOL */ - #endif - #if defined(HAVE_ECC384) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case ECC_SECP384R1_OID: - return WOLFSSL_ECC_SECP384R1; - #endif /* !NO_ECC_SECP */ - #ifdef HAVE_ECC_BRAINPOOL - case ECC_BRAINPOOLP384R1_OID: - return WOLFSSL_ECC_BRAINPOOLP384R1; - #endif /* HAVE_ECC_BRAINPOOL */ - #endif - #if defined(HAVE_ECC512) || defined(HAVE_ALL_CURVES) - #ifdef HAVE_ECC_BRAINPOOL - case ECC_BRAINPOOLP512R1_OID: - return WOLFSSL_ECC_BRAINPOOLP512R1; - #endif /* HAVE_ECC_BRAINPOOL */ - #endif - #if defined(HAVE_ECC521) || defined(HAVE_ALL_CURVES) - #ifndef NO_ECC_SECP - case ECC_SECP521R1_OID: - return WOLFSSL_ECC_SECP521R1; - #endif /* !NO_ECC_SECP */ - #endif - default: - WOLFSSL_MSG("Curve OID not compiled in or implemented"); - return 0; - } - } -#endif /* HAVE_ECC */ - - -#ifndef NO_WOLFSSL_SERVER - -#ifndef WOLFSSL_NO_TLS12 - - /* handle generation of server_hello (2) */ - int SendServerHello(WOLFSSL* ssl) - { - int ret; - byte *output; - word16 length; - word32 idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - int sendSz; - byte sessIdSz = ID_LEN; - byte echoId = 0; /* ticket echo id flag */ - byte cacheOff = 0; /* session cache off flag */ - - WOLFSSL_START(WC_FUNC_SERVER_HELLO_SEND); - WOLFSSL_ENTER("SendServerHello"); - - length = VERSION_SZ + RAN_LEN - + ID_LEN + ENUM_LEN - + SUITE_LEN - + ENUM_LEN; - -#ifdef HAVE_TLS_EXTENSIONS - ret = TLSX_GetResponseSize(ssl, server_hello, &length); - if (ret != 0) - return ret; - #ifdef HAVE_SESSION_TICKET - if (ssl->options.useTicket) { - /* echo session id sz can be 0,32 or bogus len in between */ - sessIdSz = ssl->arrays->sessionIDSz; - if (sessIdSz > ID_LEN) { - WOLFSSL_MSG("Bad bogus session id len"); - return BUFFER_ERROR; - } - if (!IsAtLeastTLSv1_3(ssl->version)) - length -= (ID_LEN - sessIdSz); /* adjust ID_LEN assumption */ - echoId = 1; - } - #endif /* HAVE_SESSION_TICKET */ -#else - if (ssl->options.haveEMS) { - length += HELLO_EXT_SZ_SZ + HELLO_EXT_SZ; - } -#endif - - /* is the session cache off at build or runtime */ -#ifdef NO_SESSION_CACHE - cacheOff = 1; -#else - if (ssl->options.sessionCacheOff == 1) { - cacheOff = 1; - } -#endif - - /* if no session cache don't send a session ID unless we're echoing - * an ID as part of session tickets */ - if (echoId == 0 && cacheOff == 1) { - length -= ID_LEN; /* adjust ID_LEN assumption */ - sessIdSz = 0; - } - - sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ; - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - /* Server Hello should use the same sequence number as the - * Client Hello. */ - ssl->keys.dtls_sequence_number_hi = ssl->keys.curSeq_hi; - ssl->keys.dtls_sequence_number_lo = ssl->keys.curSeq_lo; - idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - } - #endif /* WOLFSSL_DTLS */ - - if (IsEncryptionOn(ssl, 1)) - sendSz += MAX_MSG_EXTRA; - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) - return ret; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(output, length, server_hello, ssl); - - /* now write to output */ - /* first version */ - output[idx++] = (byte)ssl->version.major; - output[idx++] = (byte)ssl->version.minor; - - /* then random and session id */ - if (!ssl->options.resuming) { - /* generate random part and session id */ - ret = wc_RNG_GenerateBlock(ssl->rng, output + idx, - RAN_LEN + sizeof(sessIdSz) + sessIdSz); - if (ret != 0) - return ret; - -#ifdef WOLFSSL_TLS13 - if (TLSv1_3_Capable(ssl)) { - /* TLS v1.3 capable server downgraded. */ - XMEMCPY(output + idx + RAN_LEN - (TLS13_DOWNGRADE_SZ + 1), - tls13Downgrade, TLS13_DOWNGRADE_SZ); - output[idx + RAN_LEN - 1] = (byte)IsAtLeastTLSv1_2(ssl); - } - else -#endif - if (ssl->ctx->method->version.major == SSLv3_MAJOR && - ssl->ctx->method->version.minor == TLSv1_2_MINOR && - !IsAtLeastTLSv1_2(ssl)) { - /* TLS v1.2 capable server downgraded. */ - XMEMCPY(output + idx + RAN_LEN - (TLS13_DOWNGRADE_SZ + 1), - tls13Downgrade, TLS13_DOWNGRADE_SZ); - output[idx + RAN_LEN - 1] = 0; - } - - /* store info in SSL for later */ - XMEMCPY(ssl->arrays->serverRandom, output + idx, RAN_LEN); - idx += RAN_LEN; - output[idx++] = sessIdSz; - XMEMCPY(ssl->arrays->sessionID, output + idx, sessIdSz); - ssl->arrays->sessionIDSz = sessIdSz; - } - else { - /* If resuming, use info from SSL */ - XMEMCPY(output + idx, ssl->arrays->serverRandom, RAN_LEN); - idx += RAN_LEN; - output[idx++] = sessIdSz; - XMEMCPY(output + idx, ssl->arrays->sessionID, sessIdSz); - } - idx += sessIdSz; - -#ifdef SHOW_SECRETS - { - int j; - printf("server random: "); - for (j = 0; j < RAN_LEN; j++) - printf("%02x", ssl->arrays->serverRandom[j]); - printf("\n"); - } -#endif - - /* then cipher suite */ - output[idx++] = ssl->options.cipherSuite0; - output[idx++] = ssl->options.cipherSuite; - - /* then compression */ - if (ssl->options.usingCompression) - output[idx++] = ZLIB_COMPRESSION; - else - output[idx++] = NO_COMPRESSION; - - /* last, extensions */ -#ifdef HAVE_TLS_EXTENSIONS - { - word16 offset = 0; - ret = TLSX_WriteResponse(ssl, output + idx, server_hello, &offset); - if (ret != 0) - return ret; - idx += offset; - } -#else -#ifdef HAVE_EXTENDED_MASTER - if (ssl->options.haveEMS) { - c16toa(HELLO_EXT_SZ, output + idx); - idx += HELLO_EXT_SZ_SZ; - - c16toa(HELLO_EXT_EXTMS, output + idx); - idx += HELLO_EXT_TYPE_SZ; - c16toa(0, output + idx); - /*idx += HELLO_EXT_SZ_SZ;*/ - /* idx is not used after this point. uncomment the line above - * if adding any more extensions in the future. */ - } -#endif -#endif - - if (IsEncryptionOn(ssl, 1)) { - byte* input; - int inputSz = idx - RECORD_HEADER_SZ; /* build msg adds rec hdr */ - - input = (byte*)XMALLOC(inputSz, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - if (input == NULL) - return MEMORY_E; - - XMEMCPY(input, output + RECORD_HEADER_SZ, inputSz); - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - handshake, 1, 0, 0); - XFREE(input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - - if (sendSz < 0) - return sendSz; - } else { - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - #endif - ret = HashOutput(ssl, output, sendSz, 0); - if (ret != 0) - return ret; - } - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "ServerHello"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "ServerHello", handshake, output, sendSz, - WRITE_PROTO, ssl->heap); - #endif - - ssl->options.serverState = SERVER_HELLO_COMPLETE; - ssl->buffers.outputBuffer.length += sendSz; - - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - if ((ret = DtlsMsgPoolSave(ssl, output, sendSz)) != 0) - return ret; - } - #endif - - if (ssl->options.groupMessages) - ret = 0; - else - ret = SendBuffered(ssl); - - WOLFSSL_LEAVE("SendServerHello", ret); - WOLFSSL_END(WC_FUNC_SERVER_HELLO_SEND); - - return ret; - } - - -#if defined(HAVE_ECC) - - static byte SetCurveId(ecc_key* key) - { - if (key == NULL || key->dp == NULL) { - WOLFSSL_MSG("SetCurveId: Invalid key!"); - return 0; - } - - return (byte)GetCurveByOID(key->dp->oidSum); - } - -#endif /* HAVE_ECC */ - - typedef struct SskeArgs { - byte* output; /* not allocated */ - #if defined(HAVE_ECC) || defined(HAVE_ED25519) || defined(HAVE_ED448) || \ - (!defined(NO_DH) && !defined(NO_RSA)) - byte* sigDataBuf; - #endif - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - byte* exportBuf; - #endif - #ifndef NO_RSA - byte* verifySig; - #endif - byte* input; - word32 idx; - word32 tmpSigSz; - word32 length; - word32 sigSz; - #if defined(HAVE_ECC) || defined(HAVE_ED25519) || defined(HAVE_ED448) || \ - (!defined(NO_DH) && !defined(NO_RSA)) - word32 sigDataSz; - #endif - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - word32 exportSz; - #endif - #ifdef HAVE_QSH - word32 qshSz; - #endif - int sendSz; - int inputSz; - } SskeArgs; - - static void FreeSskeArgs(WOLFSSL* ssl, void* pArgs) - { - SskeArgs* args = (SskeArgs*)pArgs; - - (void)ssl; - - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || defined(HAVE_CURVE448) - if (args->exportBuf) { - XFREE(args->exportBuf, ssl->heap, DYNAMIC_TYPE_DER); - args->exportBuf = NULL; - } - #endif - #if defined(HAVE_ECC) || defined(HAVE_ED25519) || defined(HAVE_ED448) || \ - (!defined(NO_DH) && !defined(NO_RSA)) - if (args->sigDataBuf) { - XFREE(args->sigDataBuf, ssl->heap, DYNAMIC_TYPE_SIGNATURE); - args->sigDataBuf = NULL; - } - #endif - #ifndef NO_RSA - if (args->verifySig) { - XFREE(args->verifySig, ssl->heap, DYNAMIC_TYPE_SIGNATURE); - args->verifySig = NULL; - } - #endif - (void)args; - } - - /* handle generation of server_key_exchange (12) */ - int SendServerKeyExchange(WOLFSSL* ssl) - { - int ret; - #ifdef WOLFSSL_ASYNC_CRYPT - SskeArgs* args = (SskeArgs*)ssl->async.args; - typedef char args_test[sizeof(ssl->async.args) >= sizeof(*args) ? 1 : -1]; - (void)sizeof(args_test); - #else - SskeArgs args[1]; - #endif - - WOLFSSL_START(WC_FUNC_SERVER_KEY_EXCHANGE_SEND); - WOLFSSL_ENTER("SendServerKeyExchange"); - - #ifdef WOLFSSL_ASYNC_CRYPT - ret = wolfSSL_AsyncPop(ssl, &ssl->options.asyncState); - if (ret != WC_NOT_PENDING_E) { - /* Check for error */ - if (ret < 0) - goto exit_sske; - } - else - #endif - { - /* Reset state */ - ret = 0; - ssl->options.asyncState = TLS_ASYNC_BEGIN; - XMEMSET(args, 0, sizeof(SskeArgs)); - #ifdef WOLFSSL_ASYNC_CRYPT - ssl->async.freeArgs = FreeSskeArgs; - #endif - } - - switch(ssl->options.asyncState) - { - case TLS_ASYNC_BEGIN: - { - #ifdef HAVE_QSH - if (ssl->peerQSHKeyPresent && ssl->options.haveQSH) { - args->qshSz = QSH_KeyGetSize(ssl); - } - #endif - - /* Do some checks / debug msgs */ - switch(ssl->specs.kea) - { - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - WOLFSSL_MSG("Using ephemeral ECDH PSK"); - break; - } - #endif /* (HAVE_ECC || CURVE25519 || CURVE448) && !NO_PSK */ - #if defined(HAVE_ECC) - case ecc_diffie_hellman_kea: - { - if (ssl->specs.static_ecdh) { - WOLFSSL_MSG("Using Static ECDH, not sending " - "ServerKeyExchange"); - ERROR_OUT(0, exit_sske); - } - - WOLFSSL_MSG("Using ephemeral ECDH"); - break; - } - #endif /* HAVE_ECC */ - } - - /* Preparing keys */ - switch(ssl->specs.kea) - { - #ifndef NO_PSK - case psk_kea: - { - /* Nothing to do in this sub-state */ - break; - } - #endif /* !NO_PSK */ - #if !defined(NO_DH) && (!defined(NO_PSK) || !defined(NO_RSA)) - #if !defined(NO_PSK) - case dhe_psk_kea: - #endif - #if !defined(NO_RSA) - case diffie_hellman_kea: - #endif - { - /* Allocate DH key buffers and generate key */ - if (ssl->buffers.serverDH_P.buffer == NULL || - ssl->buffers.serverDH_G.buffer == NULL) { - ERROR_OUT(NO_DH_PARAMS, exit_sske); - } - - if (ssl->buffers.serverDH_Pub.buffer == NULL) { - /* Free'd in SSL_ResourceFree and FreeHandshakeResources */ - ssl->buffers.serverDH_Pub.buffer = (byte*)XMALLOC( - ssl->buffers.serverDH_P.length + OPAQUE16_LEN, - ssl->heap, DYNAMIC_TYPE_PUBLIC_KEY); - if (ssl->buffers.serverDH_Pub.buffer == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - } - - if (ssl->buffers.serverDH_Priv.buffer == NULL) { - /* Free'd in SSL_ResourceFree and FreeHandshakeResources */ - ssl->buffers.serverDH_Priv.buffer = (byte*)XMALLOC( - ssl->buffers.serverDH_P.length + OPAQUE16_LEN, - ssl->heap, DYNAMIC_TYPE_PRIVATE_KEY); - if (ssl->buffers.serverDH_Priv.buffer == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - } - - ssl->options.dhKeySz = - (word16)ssl->buffers.serverDH_P.length; - - ret = AllocKey(ssl, DYNAMIC_TYPE_DH, - (void**)&ssl->buffers.serverDH_Key); - if (ret != 0) { - goto exit_sske; - } - - #if !defined(WOLFSSL_OLD_PRIME_CHECK) && \ - !defined(HAVE_FIPS) && \ - !defined(HAVE_SELFTEST) - if (ssl->options.dhDoKeyTest && - !ssl->options.dhKeyTested) - { - ret = wc_DhSetCheckKey( - ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length, - NULL, 0, 0, ssl->rng); - if (ret != 0) { - goto exit_sske; - } - ssl->options.dhKeyTested = 1; - } - else - #endif - { - ret = wc_DhSetKey(ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length); - if (ret != 0) { - goto exit_sske; - } - } - - ret = DhGenKeyPair(ssl, ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_Priv.buffer, - (word32*)&ssl->buffers.serverDH_Priv.length, - ssl->buffers.serverDH_Pub.buffer, - (word32*)&ssl->buffers.serverDH_Pub.length); - break; - } - #endif /* !NO_DH && (!NO_PSK || !NO_RSA) */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - /* Fall through to create temp ECC key */ - #endif /* (HAVE_ECC || CURVE25519 || CURVE448) && !NO_PSK */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - /* need ephemeral key now, create it if missing */ - if (ssl->eccTempKey == NULL) { - /* alloc/init on demand */ - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE25519, - (void**)&ssl->eccTempKey); - if (ret != 0) { - goto exit_sske; - } - } - - if (ssl->eccTempKeyPresent == 0) { - ret = X25519MakeKey(ssl, - (curve25519_key*)ssl->eccTempKey, NULL); - if (ret == 0 || ret == WC_PENDING_E) { - ssl->eccTempKeyPresent = - DYNAMIC_TYPE_CURVE25519; - } - } - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - /* need ephemeral key now, create it if missing */ - if (ssl->eccTempKey == NULL) { - /* alloc/init on demand */ - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE448, - (void**)&ssl->eccTempKey); - if (ret != 0) { - goto exit_sske; - } - } - - if (ssl->eccTempKeyPresent == 0) { - ret = X448MakeKey(ssl, - (curve448_key*)ssl->eccTempKey, NULL); - if (ret == 0 || ret == WC_PENDING_E) { - ssl->eccTempKeyPresent = - DYNAMIC_TYPE_CURVE448; - } - } - break; - } - #endif - #ifdef HAVE_ECC - /* need ephemeral key now, create it if missing */ - if (ssl->eccTempKey == NULL) { - /* alloc/init on demand */ - ret = AllocKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->eccTempKey); - if (ret != 0) { - goto exit_sske; - } - } - - if (ssl->eccTempKeyPresent == 0) { - ret = EccMakeKey(ssl, ssl->eccTempKey, NULL); - if (ret == 0 || ret == WC_PENDING_E) { - ssl->eccTempKeyPresent = DYNAMIC_TYPE_ECC; - } - } - #endif - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - default: - /* Skip ServerKeyExchange */ - goto exit_sske; - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_sske; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_BUILD; - } /* case TLS_ASYNC_BEGIN */ - FALL_THROUGH; - - case TLS_ASYNC_BUILD: - { - #if (!defined(NO_DH) && !defined(NO_RSA)) || (defined(HAVE_ECC) || \ - defined(HAVE_CURVE25519) || defined(HAVE_CURVE448)) - word32 preSigSz, preSigIdx; - #endif - - switch(ssl->specs.kea) - { - #ifndef NO_PSK - case psk_kea: - { - args->idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - - if (ssl->arrays->server_hint[0] == 0) { - ERROR_OUT(0, exit_sske); /* don't send */ - } - - /* include size part */ - args->length = (word32)XSTRLEN(ssl->arrays->server_hint); - if (args->length > MAX_PSK_ID_LEN) { - ERROR_OUT(SERVER_HINT_ERROR, exit_sske); - } - - args->length += HINT_LEN_SZ; - args->sendSz = args->length + HANDSHAKE_HEADER_SZ + - RECORD_HEADER_SZ; - - #ifdef HAVE_QSH - args->length += args->qshSz; - args->sendSz += args->qshSz; - #endif - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - args->sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - args->idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - } - #endif - - if (IsEncryptionOn(ssl, 1)) { - args->sendSz += MAX_MSG_EXTRA; - } - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, args->sendSz)) != 0) { - goto exit_sske; - } - - /* get output buffer */ - args->output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(args->output, args->length, - server_key_exchange, ssl); - - /* key data */ - #ifdef HAVE_QSH - c16toa((word16)(args->length - args->qshSz - - HINT_LEN_SZ), args->output + args->idx); - #else - c16toa((word16)(args->length - HINT_LEN_SZ), - args->output + args->idx); - #endif - - args->idx += HINT_LEN_SZ; - XMEMCPY(args->output + args->idx, - ssl->arrays->server_hint, - args->length - HINT_LEN_SZ); - break; - } - #endif /* !NO_PSK */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - word32 hintLen; - - args->idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - args->length = LENGTH_SZ * 3 + /* p, g, pub */ - ssl->buffers.serverDH_P.length + - ssl->buffers.serverDH_G.length + - ssl->buffers.serverDH_Pub.length; - - /* include size part */ - hintLen = (word32)XSTRLEN(ssl->arrays->server_hint); - if (hintLen > MAX_PSK_ID_LEN) { - ERROR_OUT(SERVER_HINT_ERROR, exit_sske); - } - args->length += hintLen + HINT_LEN_SZ; - args->sendSz = args->length + HANDSHAKE_HEADER_SZ + - RECORD_HEADER_SZ; - - #ifdef HAVE_QSH - args->length += args->qshSz; - args->sendSz += args->qshSz; - #endif - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - args->sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - args->idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - } - #endif - - if (IsEncryptionOn(ssl, 1)) { - args->sendSz += MAX_MSG_EXTRA; - } - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, args->sendSz)) != 0) { - goto exit_sske; - } - - /* get output buffer */ - args->output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(args->output, args->length, - server_key_exchange, ssl); - - /* key data */ - c16toa((word16)hintLen, args->output + args->idx); - args->idx += HINT_LEN_SZ; - XMEMCPY(args->output + args->idx, - ssl->arrays->server_hint, hintLen); - args->idx += hintLen; - - /* add p, g, pub */ - c16toa((word16)ssl->buffers.serverDH_P.length, - args->output + args->idx); - args->idx += LENGTH_SZ; - XMEMCPY(args->output + args->idx, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length); - args->idx += ssl->buffers.serverDH_P.length; - - /* g */ - c16toa((word16)ssl->buffers.serverDH_G.length, - args->output + args->idx); - args->idx += LENGTH_SZ; - XMEMCPY(args->output + args->idx, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length); - args->idx += ssl->buffers.serverDH_G.length; - - /* pub */ - c16toa((word16)ssl->buffers.serverDH_Pub.length, - args->output + args->idx); - args->idx += LENGTH_SZ; - XMEMCPY(args->output + args->idx, - ssl->buffers.serverDH_Pub.buffer, - ssl->buffers.serverDH_Pub.length); - /* No need to update idx, since sizes are already set */ - /* args->idx += ssl->buffers.serverDH_Pub.length; */ - break; - } - #endif /* !defined(NO_DH) && !defined(NO_PSK) */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - word32 hintLen; - - /* curve type, named curve, length(1) */ - args->idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - args->length = ENUM_LEN + CURVE_LEN + ENUM_LEN; - - args->exportSz = MAX_EXPORT_ECC_SZ; - args->exportBuf = (byte*)XMALLOC(args->exportSz, - ssl->heap, DYNAMIC_TYPE_DER); - if (args->exportBuf == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - if (wc_curve25519_export_public_ex( - (curve25519_key*)ssl->eccTempKey, - args->exportBuf, &args->exportSz, - EC25519_LITTLE_ENDIAN) != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_sske); - } - } - else - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - if (wc_curve448_export_public_ex( - (curve448_key*)ssl->eccTempKey, - args->exportBuf, &args->exportSz, - EC448_LITTLE_ENDIAN) != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_sske); - } - } - else - #endif - { - if (wc_ecc_export_x963(ssl->eccTempKey, - args->exportBuf, &args->exportSz) != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_sske); - } - } - args->length += args->exportSz; - - /* include size part */ - hintLen = (word32)XSTRLEN(ssl->arrays->server_hint); - if (hintLen > MAX_PSK_ID_LEN) { - ERROR_OUT(SERVER_HINT_ERROR, exit_sske); - } - args->length += hintLen + HINT_LEN_SZ; - args->sendSz = args->length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ; - - #ifdef HAVE_QSH - args->length += args->qshSz; - args->sendSz += args->qshSz; - #endif - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - args->sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - args->idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - } - #endif - - if (IsEncryptionOn(ssl, 1)) { - args->sendSz += MAX_MSG_EXTRA; - } - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, args->sendSz)) != 0) { - goto exit_sske; - } - - /* get output buffer */ - args->output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - /* key data */ - c16toa((word16)hintLen, args->output + args->idx); - args->idx += HINT_LEN_SZ; - XMEMCPY(args->output + args->idx, - ssl->arrays->server_hint, hintLen); - args->idx += hintLen; - - /* ECC key exchange data */ - args->output[args->idx++] = named_curve; - args->output[args->idx++] = 0x00; /* leading zero */ - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) - args->output[args->idx++] = WOLFSSL_ECC_X25519; - else - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) - args->output[args->idx++] = WOLFSSL_ECC_X448; - else - #endif - { - #ifdef HAVE_ECC - args->output[args->idx++] = - SetCurveId(ssl->eccTempKey); - #endif - } - args->output[args->idx++] = (byte)args->exportSz; - XMEMCPY(args->output + args->idx, args->exportBuf, - args->exportSz); - break; - } - #endif /* (HAVE_ECC || CURVE25519 || CURVE448) && !NO_PSK */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - enum wc_HashType hashType; - - /* curve type, named curve, length(1) */ - args->idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - args->length = ENUM_LEN + CURVE_LEN + ENUM_LEN; - - /* Export temp ECC key and add to length */ - args->exportSz = MAX_EXPORT_ECC_SZ; - args->exportBuf = (byte*)XMALLOC(args->exportSz, - ssl->heap, DYNAMIC_TYPE_DER); - if (args->exportBuf == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - if (wc_curve25519_export_public_ex( - (curve25519_key*)ssl->eccTempKey, - args->exportBuf, &args->exportSz, - EC25519_LITTLE_ENDIAN) != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_sske); - } - } - else - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - if (wc_curve448_export_public_ex( - (curve448_key*)ssl->eccTempKey, - args->exportBuf, &args->exportSz, - EC448_LITTLE_ENDIAN) != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_sske); - } - } - else - #endif - { - #if defined(HAVE_ECC) && defined(HAVE_ECC_KEY_EXPORT) - if (wc_ecc_export_x963(ssl->eccTempKey, - args->exportBuf, &args->exportSz) != 0) { - ERROR_OUT(ECC_EXPORT_ERROR, exit_sske); - } - #endif - } - args->length += args->exportSz; - - preSigSz = args->length; - preSigIdx = args->idx; - - if (ssl->buffers.key == NULL) { - #ifdef HAVE_PK_CALLBACKS - if (wolfSSL_CTX_IsPrivatePkSet(ssl->ctx)) { - args->tmpSigSz = GetPrivateKeySigSize(ssl); - if (args->tmpSigSz == 0) { - ERROR_OUT(NO_PRIVATE_KEY, exit_sske); - } - } - else - #endif - ERROR_OUT(NO_PRIVATE_KEY, exit_sske); - } - else { - switch(ssl->suites->sigAlgo) { - #ifndef NO_RSA - #ifdef WC_RSA_PSS - case rsa_pss_sa_algo: - #endif - case rsa_sa_algo: - { - word16 keySz; - - ssl->buffers.keyType = rsa_sa_algo; - ret = DecodePrivateKey(ssl, &keySz); - if (ret != 0) { - goto exit_sske; - } - - args->tmpSigSz = (word32)keySz; - break; - } - #endif /* !NO_RSA */ - #ifdef HAVE_ECC - case ecc_dsa_sa_algo: - { - word16 keySz; - - ssl->buffers.keyType = ecc_dsa_sa_algo; - ret = DecodePrivateKey(ssl, &keySz); - if (ret != 0) { - goto exit_sske; - } - /* worst case estimate */ - args->tmpSigSz = keySz; - break; - } - #endif - #ifdef HAVE_ED25519 - case ed25519_sa_algo: - { - word16 keySz; - - ssl->buffers.keyType = ed25519_sa_algo; - ret = DecodePrivateKey(ssl, &keySz); - if (ret != 0) { - goto exit_sske; - } - - /* worst case estimate */ - args->tmpSigSz = ED25519_SIG_SIZE; - break; - } - #endif /* HAVE_ED25519 */ - #ifdef HAVE_ED448 - case ed448_sa_algo: - { - word16 keySz; - - ssl->buffers.keyType = ed448_sa_algo; - ret = DecodePrivateKey(ssl, &keySz); - if (ret != 0) { - goto exit_sske; - } - - /* worst case estimate */ - args->tmpSigSz = ED448_SIG_SIZE; - break; - } - #endif /* HAVE_ED448 */ - default: - ERROR_OUT(ALGO_ID_E, exit_sske); /* unsupported type */ - } /* switch(ssl->specs.sig_algo) */ - } - - /* sig length */ - args->length += LENGTH_SZ; - args->length += args->tmpSigSz; - - if (IsAtLeastTLSv1_2(ssl)) { - args->length += HASH_SIG_SIZE; - } - - args->sendSz = args->length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ; - - #ifdef HAVE_QSH - args->length += args->qshSz; - args->sendSz += args->qshSz; - #endif - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - args->sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - args->idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - preSigIdx = args->idx; - } - #endif - if (IsEncryptionOn(ssl, 1)) { - args->sendSz += MAX_MSG_EXTRA; - } - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, args->sendSz)) != 0) { - goto exit_sske; - } - - /* get output buffer */ - args->output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - /* record and message headers will be added below, when we're sure - of the sig length */ - - /* key exchange data */ - args->output[args->idx++] = named_curve; - args->output[args->idx++] = 0x00; /* leading zero */ - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) - args->output[args->idx++] = WOLFSSL_ECC_X25519; - else - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) - args->output[args->idx++] = WOLFSSL_ECC_X448; - else - #endif - { - #ifdef HAVE_ECC - args->output[args->idx++] = - SetCurveId(ssl->eccTempKey); - #endif - } - args->output[args->idx++] = (byte)args->exportSz; - XMEMCPY(args->output + args->idx, args->exportBuf, args->exportSz); - args->idx += args->exportSz; - - /* Determine hash type */ - if (IsAtLeastTLSv1_2(ssl)) { - EncodeSigAlg(ssl->suites->hashAlgo, - ssl->suites->sigAlgo, - &args->output[args->idx]); - args->idx += 2; - - hashType = HashAlgoToType(ssl->suites->hashAlgo); - if (hashType == WC_HASH_TYPE_NONE) { - ERROR_OUT(ALGO_ID_E, exit_sske); - } - - } else { - /* only using sha and md5 for rsa */ - #ifndef NO_OLD_TLS - hashType = WC_HASH_TYPE_SHA; - if (ssl->suites->sigAlgo == rsa_sa_algo) { - hashType = WC_HASH_TYPE_MD5_SHA; - } - #else - ERROR_OUT(ALGO_ID_E, exit_sske); - #endif - } - - /* Signature length will be written later, when we're sure what it is */ - - #ifdef HAVE_FUZZER - if (ssl->fuzzerCb) { - ssl->fuzzerCb(ssl, args->output + preSigIdx, - preSigSz, FUZZ_SIGNATURE, ssl->fuzzerCtx); - } - #endif - - /* Assemble buffer to hash for signature */ - args->sigDataSz = RAN_LEN + RAN_LEN + preSigSz; - args->sigDataBuf = (byte*)XMALLOC(args->sigDataSz, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (args->sigDataBuf == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - XMEMCPY(args->sigDataBuf, ssl->arrays->clientRandom, - RAN_LEN); - XMEMCPY(args->sigDataBuf+RAN_LEN, - ssl->arrays->serverRandom, RAN_LEN); - XMEMCPY(args->sigDataBuf+RAN_LEN+RAN_LEN, - args->output + preSigIdx, preSigSz); - - if (ssl->suites->sigAlgo != ed25519_sa_algo && - ssl->suites->sigAlgo != ed448_sa_algo) { - ssl->buffers.sig.length = - wc_HashGetDigestSize(hashType); - if ((int)ssl->buffers.sig.length < 0) { - ERROR_OUT(HASH_TYPE_E, exit_sske); - } - ssl->buffers.sig.buffer = (byte*)XMALLOC( - ssl->buffers.sig.length, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (ssl->buffers.sig.buffer == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - - /* Perform hash */ - ret = wc_Hash(hashType, args->sigDataBuf, - args->sigDataSz, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length); - if (ret != 0) { - goto exit_sske; - } - } - - args->sigSz = args->tmpSigSz; - - /* Sign hash to create signature */ - switch (ssl->suites->sigAlgo) - { - #ifndef NO_RSA - case rsa_sa_algo: - { - /* For TLS 1.2 re-encode signature */ - if (IsAtLeastTLSv1_2(ssl)) { - byte* encodedSig = (byte*)XMALLOC( - MAX_ENCODED_SIG_SZ, ssl->heap, - DYNAMIC_TYPE_SIGNATURE); - if (encodedSig == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - - ssl->buffers.sig.length = - wc_EncodeSignature(encodedSig, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - TypeHash(ssl->suites->hashAlgo)); - - /* Replace sig buffer with new one */ - XFREE(ssl->buffers.sig.buffer, ssl->heap, - DYNAMIC_TYPE_SIGNATURE); - ssl->buffers.sig.buffer = encodedSig; - } - - /* write sig size here */ - c16toa((word16)args->sigSz, - args->output + args->idx); - args->idx += LENGTH_SZ; - break; - } - #ifdef WC_RSA_PSS - case rsa_pss_sa_algo: - /* write sig size here */ - c16toa((word16)args->sigSz, - args->output + args->idx); - args->idx += LENGTH_SZ; - break; - #endif - #endif /* !NO_RSA */ - case ecc_dsa_sa_algo: - { - break; - } - #ifdef HAVE_ED25519 - case ed25519_sa_algo: - ret = Ed25519CheckPubKey(ssl); - if (ret != 0) - goto exit_sske; - break; - #endif /* HAVE_ED25519 */ - #ifdef HAVE_ED448 - case ed448_sa_algo: - ret = Ed448CheckPubKey(ssl); - if (ret != 0) - goto exit_sske; - break; - #endif /* HAVE_ED448 */ - } /* switch(ssl->specs.sig_algo) */ - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - #if !defined(NO_DH) && !defined(NO_RSA) - case diffie_hellman_kea: - { - enum wc_HashType hashType; - - args->idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - args->length = LENGTH_SZ * 3; /* p, g, pub */ - args->length += ssl->buffers.serverDH_P.length + - ssl->buffers.serverDH_G.length + - ssl->buffers.serverDH_Pub.length; - - preSigIdx = args->idx; - preSigSz = args->length; - - if (!ssl->options.usingAnon_cipher) { - word16 keySz; - - /* sig length */ - args->length += LENGTH_SZ; - - if (ssl->buffers.key == NULL) { - #ifdef HAVE_PK_CALLBACKS - if (wolfSSL_CTX_IsPrivatePkSet(ssl->ctx)) - keySz = (word32)GetPrivateKeySigSize(ssl); - else - #endif - ERROR_OUT(NO_PRIVATE_KEY, exit_sske); - } - else - { - if (ssl->buffers.keyType == 0) - ssl->buffers.keyType = rsa_sa_algo; - ret = DecodePrivateKey(ssl, &keySz); - if (ret != 0) { - goto exit_sske; - } - } - - if (keySz == 0) { /* test if keySz has error */ - ERROR_OUT(keySz, exit_sske); - } - - args->tmpSigSz = (word32)keySz; - args->length += args->tmpSigSz; - - if (IsAtLeastTLSv1_2(ssl)) { - args->length += HASH_SIG_SIZE; - } - } - - args->sendSz = args->length + HANDSHAKE_HEADER_SZ + - RECORD_HEADER_SZ; - - #ifdef HAVE_QSH - args->length += args->qshSz; - args->sendSz += args->qshSz; - #endif - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - args->sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - args->idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - preSigIdx = args->idx; - } - #endif - - if (IsEncryptionOn(ssl, 1)) { - args->sendSz += MAX_MSG_EXTRA; - } - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, args->sendSz)) != 0) { - goto exit_sske; - } - - /* get output buffer */ - args->output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(args->output, args->length, - server_key_exchange, ssl); - - /* add p, g, pub */ - c16toa((word16)ssl->buffers.serverDH_P.length, - args->output + args->idx); - args->idx += LENGTH_SZ; - XMEMCPY(args->output + args->idx, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length); - args->idx += ssl->buffers.serverDH_P.length; - - /* g */ - c16toa((word16)ssl->buffers.serverDH_G.length, - args->output + args->idx); - args->idx += LENGTH_SZ; - XMEMCPY(args->output + args->idx, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length); - args->idx += ssl->buffers.serverDH_G.length; - - /* pub */ - c16toa((word16)ssl->buffers.serverDH_Pub.length, - args->output + args->idx); - args->idx += LENGTH_SZ; - XMEMCPY(args->output + args->idx, - ssl->buffers.serverDH_Pub.buffer, - ssl->buffers.serverDH_Pub.length); - args->idx += ssl->buffers.serverDH_Pub.length; - - #ifdef HAVE_FUZZER - if (ssl->fuzzerCb) { - ssl->fuzzerCb(ssl, args->output + preSigIdx, - preSigSz, FUZZ_SIGNATURE, ssl->fuzzerCtx); - } - #endif - - if (ssl->options.usingAnon_cipher) { - break; - } - - /* Determine hash type */ - if (IsAtLeastTLSv1_2(ssl)) { - EncodeSigAlg(ssl->suites->hashAlgo, - ssl->suites->sigAlgo, - &args->output[args->idx]); - args->idx += 2; - - hashType = HashAlgoToType(ssl->suites->hashAlgo); - if (hashType == WC_HASH_TYPE_NONE) { - ERROR_OUT(ALGO_ID_E, exit_sske); - } - } else { - /* only using sha and md5 for rsa */ - #ifndef NO_OLD_TLS - hashType = WC_HASH_TYPE_SHA; - if (ssl->suites->sigAlgo == rsa_sa_algo) { - hashType = WC_HASH_TYPE_MD5_SHA; - } - #else - ERROR_OUT(ALGO_ID_E, exit_sske); - #endif - } - - /* signature size */ - c16toa((word16)args->tmpSigSz, args->output + args->idx); - args->idx += LENGTH_SZ; - - /* Assemble buffer to hash for signature */ - args->sigDataSz = RAN_LEN + RAN_LEN + preSigSz; - args->sigDataBuf = (byte*)XMALLOC(args->sigDataSz, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (args->sigDataBuf == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - XMEMCPY(args->sigDataBuf, ssl->arrays->clientRandom, - RAN_LEN); - XMEMCPY(args->sigDataBuf+RAN_LEN, - ssl->arrays->serverRandom, RAN_LEN); - XMEMCPY(args->sigDataBuf+RAN_LEN+RAN_LEN, - args->output + preSigIdx, preSigSz); - - if (ssl->suites->sigAlgo != ed25519_sa_algo && - ssl->suites->sigAlgo != ed448_sa_algo) { - ssl->buffers.sig.length = - wc_HashGetDigestSize(hashType); - ssl->buffers.sig.buffer = (byte*)XMALLOC( - ssl->buffers.sig.length, ssl->heap, - DYNAMIC_TYPE_SIGNATURE); - if (ssl->buffers.sig.buffer == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - - /* Perform hash */ - ret = wc_Hash(hashType, args->sigDataBuf, - args->sigDataSz, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length); - if (ret != 0) { - goto exit_sske; - } - } - - args->sigSz = args->tmpSigSz; - - /* Sign hash to create signature */ - switch (ssl->suites->sigAlgo) - { - #ifndef NO_RSA - case rsa_sa_algo: - { - /* For TLS 1.2 re-encode signature */ - if (IsAtLeastTLSv1_2(ssl)) { - byte* encodedSig = (byte*)XMALLOC( - MAX_ENCODED_SIG_SZ, ssl->heap, - DYNAMIC_TYPE_SIGNATURE); - if (encodedSig == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - - ssl->buffers.sig.length = - wc_EncodeSignature(encodedSig, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - TypeHash(ssl->suites->hashAlgo)); - - /* Replace sig buffer with new one */ - XFREE(ssl->buffers.sig.buffer, ssl->heap, - DYNAMIC_TYPE_SIGNATURE); - ssl->buffers.sig.buffer = encodedSig; - } - break; - } - #endif /* NO_RSA */ - } /* switch (ssl->suites->sigAlgo) */ - break; - } - #endif /* !defined(NO_DH) && !defined(NO_RSA) */ - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_sske; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_DO; - } /* case TLS_ASYNC_BUILD */ - FALL_THROUGH; - - case TLS_ASYNC_DO: - { - switch(ssl->specs.kea) - { - #ifndef NO_PSK - case psk_kea: - { - break; - } - #endif /* !NO_PSK */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - break; - } - #endif /* !defined(NO_DH) && !defined(NO_PSK) */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - break; - } - #endif /* (HAVE_ECC || CURVE25519 || CURVE448) && !NO_PSK */ - #if defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_ED448) - case ecc_diffie_hellman_kea: - { - /* Sign hash to create signature */ - switch (ssl->suites->sigAlgo) - { - #ifndef NO_RSA - #ifdef WC_RSA_PSS - case rsa_pss_sa_algo: - #endif - case rsa_sa_algo: - { - RsaKey* key = (RsaKey*)ssl->hsKey; - - ret = RsaSign(ssl, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - args->output + args->idx, - &args->sigSz, - ssl->suites->sigAlgo, ssl->suites->hashAlgo, - key, - ssl->buffers.key - ); - break; - } - #endif /* !NO_RSA */ - #ifdef HAVE_ECC - case ecc_dsa_sa_algo: - { - ecc_key* key = (ecc_key*)ssl->hsKey; - - ret = EccSign(ssl, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - args->output + LENGTH_SZ + args->idx, - &args->sigSz, - key, - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.key - #else - NULL - #endif - ); - break; - } - #endif /* HAVE_ECC */ - #ifdef HAVE_ED25519 - case ed25519_sa_algo: - { - ed25519_key* key = (ed25519_key*)ssl->hsKey; - - ret = Ed25519Sign(ssl, - args->sigDataBuf, args->sigDataSz, - args->output + LENGTH_SZ + args->idx, - &args->sigSz, - key, - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.key - #else - NULL - #endif - ); - break; - } - #endif - #ifdef HAVE_ED448 - case ed448_sa_algo: - { - ed448_key* key = (ed448_key*)ssl->hsKey; - - ret = Ed448Sign(ssl, - args->sigDataBuf, args->sigDataSz, - args->output + LENGTH_SZ + args->idx, - &args->sigSz, - key, - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.key - #else - NULL - #endif - ); - break; - } - #endif - } /* switch(ssl->specs.sig_algo) */ - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - #if !defined(NO_DH) && !defined(NO_RSA) - case diffie_hellman_kea: - { - /* Sign hash to create signature */ - switch (ssl->suites->sigAlgo) - { - #ifndef NO_RSA - #ifdef WC_RSA_PSS - case rsa_pss_sa_algo: - #endif - case rsa_sa_algo: - { - RsaKey* key = (RsaKey*)ssl->hsKey; - - if (ssl->options.usingAnon_cipher) { - break; - } - - ret = RsaSign(ssl, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - args->output + args->idx, - &args->sigSz, - ssl->suites->sigAlgo, ssl->suites->hashAlgo, - key, - ssl->buffers.key - ); - break; - } - #endif /* NO_RSA */ - } /* switch (ssl->suites->sigAlgo) */ - - break; - } - #endif /* !defined(NO_DH) && !defined(NO_RSA) */ - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_sske; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_VERIFY; - } /* case TLS_ASYNC_DO */ - FALL_THROUGH; - - case TLS_ASYNC_VERIFY: - { - switch(ssl->specs.kea) - { - #ifndef NO_PSK - case psk_kea: - { - /* Nothing to do in this sub-state */ - break; - } - #endif /* !NO_PSK */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - /* Nothing to do in this sub-state */ - break; - } - #endif /* !defined(NO_DH) && !defined(NO_PSK) */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - /* Nothing to do in this sub-state */ - break; - } - #endif /* (HAVE_ECC || CURVE25519 || CURVE448) && !NO_PSK */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - switch(ssl->suites->sigAlgo) - { - #ifndef NO_RSA - #ifdef WC_RSA_PSS - case rsa_pss_sa_algo: - #endif - case rsa_sa_algo: - { - RsaKey* key = (RsaKey*)ssl->hsKey; - - if (args->verifySig == NULL) { - if (args->sigSz == 0) { - ERROR_OUT(BAD_COND_E, exit_sske); - } - args->verifySig = (byte*)XMALLOC( - args->sigSz, ssl->heap, - DYNAMIC_TYPE_SIGNATURE); - if (!args->verifySig) { - ERROR_OUT(MEMORY_E, exit_sske); - } - XMEMCPY(args->verifySig, - args->output + args->idx, args->sigSz); - } - - /* check for signature faults */ - ret = VerifyRsaSign(ssl, - args->verifySig, args->sigSz, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - ssl->suites->sigAlgo, ssl->suites->hashAlgo, - key, ssl->buffers.key - ); - break; - } - #endif - case ecc_dsa_sa_algo: - #ifdef HAVE_ED25519 - case ed25519_sa_algo: - #endif - #ifdef HAVE_ED448 - case ed448_sa_algo: - #endif - { - /* Now that we know the real sig size, write it. */ - c16toa((word16)args->sigSz, - args->output + args->idx); - - /* And adjust length and sendSz from estimates */ - args->length += args->sigSz - args->tmpSigSz; - args->sendSz += args->sigSz - args->tmpSigSz; - break; - } - default: - ERROR_OUT(ALGO_ID_E, exit_sske); /* unsupported type */ - } /* switch(ssl->specs.sig_algo) */ - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - #if !defined(NO_DH) && !defined(NO_RSA) - case diffie_hellman_kea: - { - switch (ssl->suites->sigAlgo) - { - #ifndef NO_RSA - #ifndef WC_RSA_PSS - case rsa_pss_sa_algo: - #endif - case rsa_sa_algo: - { - RsaKey* key = (RsaKey*)ssl->hsKey; - - if (ssl->options.usingAnon_cipher) { - break; - } - - if (args->verifySig == NULL) { - if (args->sigSz == 0) { - ERROR_OUT(BAD_COND_E, exit_sske); - } - args->verifySig = (byte*)XMALLOC( - args->sigSz, ssl->heap, - DYNAMIC_TYPE_SIGNATURE); - if (!args->verifySig) { - ERROR_OUT(MEMORY_E, exit_sske); - } - XMEMCPY(args->verifySig, - args->output + args->idx, args->sigSz); - } - - /* check for signature faults */ - ret = VerifyRsaSign(ssl, - args->verifySig, args->sigSz, - ssl->buffers.sig.buffer, - ssl->buffers.sig.length, - ssl->suites->sigAlgo, ssl->suites->hashAlgo, - key, ssl->buffers.key - ); - break; - } - #endif - } /* switch (ssl->suites->sigAlgo) */ - break; - } - #endif /* !defined(NO_DH) && !defined(NO_RSA) */ - } /* switch(ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_sske; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_FINALIZE; - } /* case TLS_ASYNC_VERIFY */ - FALL_THROUGH; - - case TLS_ASYNC_FINALIZE: - { - #ifdef HAVE_QSH - if (ssl->peerQSHKeyPresent) { - if (args->qshSz > 0) { - args->idx = args->sendSz - args->qshSz; - if (QSH_KeyExchangeWrite(ssl, 1) != 0) { - ERROR_OUT(MEMORY_E, exit_sske); - } - - /* extension type */ - c16toa(TLSX_QUANTUM_SAFE_HYBRID, - args->output + args->idx); - args->idx += OPAQUE16_LEN; - - /* write to output and check amount written */ - if (TLSX_QSHPK_Write(ssl->QSH_secret->list, - args->output + args->idx) > - args->qshSz - OPAQUE16_LEN) { - ERROR_OUT(MEMORY_E, exit_sske); - } - } - } - #endif - - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - if (ssl->specs.kea == ecdhe_psk_kea || - ssl->specs.kea == ecc_diffie_hellman_kea) { - /* Check output to make sure it was set */ - if (args->output) { - AddHeaders(args->output, args->length, - server_key_exchange, ssl); - } - else { - ERROR_OUT(BUFFER_ERROR, exit_sske); - } - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - - if (IsEncryptionOn(ssl, 1)) { - args->inputSz = args->length + HANDSHAKE_HEADER_SZ; - /* buildmsg adds rechdr */ - args->input = (byte*)XMALLOC(args->inputSz, ssl->heap, - DYNAMIC_TYPE_IN_BUFFER); - if (args->input == NULL) { - ERROR_OUT(MEMORY_E, exit_sske); - } - - if (args->output == NULL) { - ERROR_OUT(BUFFER_ERROR, exit_sske); - } - - XMEMCPY(args->input, args->output + RECORD_HEADER_SZ, - args->inputSz); - ret = BuildMessage(ssl, args->output, args->sendSz, - args->input, args->inputSz, handshake, 1, 0, 0); - XFREE(args->input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - args->input = NULL; - /* make sure its not double free'd on cleanup */ - - if (ret >= 0) { - args->sendSz = ret; - ret = 0; - } - } - else { - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - if ((ret = DtlsMsgPoolSave(ssl, - args->output, args->sendSz)) != 0) { - goto exit_sske; - } - } - - if (ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - #endif - - ret = HashOutput(ssl, args->output, args->sendSz, 0); - if (ret != 0) { - goto exit_sske; - } - } - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) { - AddPacketName(ssl, "ServerKeyExchange"); - } - if (ssl->toInfoOn) { - AddPacketInfo(ssl, "ServerKeyExchange", handshake, - args->output, args->sendSz, WRITE_PROTO, ssl->heap); - } - #endif - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_END; - } /* case TLS_ASYNC_FINALIZE */ - FALL_THROUGH; - - case TLS_ASYNC_END: - { - ssl->buffers.outputBuffer.length += args->sendSz; - if (!ssl->options.groupMessages) { - ret = SendBuffered(ssl); - } - - ssl->options.serverState = SERVER_KEYEXCHANGE_COMPLETE; - break; - } - default: - ret = INPUT_CASE_ERROR; - } /* switch(ssl->options.asyncState) */ - - exit_sske: - - WOLFSSL_LEAVE("SendServerKeyExchange", ret); - WOLFSSL_END(WC_FUNC_SERVER_KEY_EXCHANGE_SEND); - - #ifdef WOLFSSL_ASYNC_CRYPT - /* Handle async operation */ - if (ret == WC_PENDING_E) - return ret; - #endif /* WOLFSSL_ASYNC_CRYPT */ - - /* Final cleanup */ - FreeSskeArgs(ssl, args); - FreeKeyExchange(ssl); - - return ret; - } - -#if defined(HAVE_SERVER_RENEGOTIATION_INFO) || defined(HAVE_FALLBACK_SCSV) || \ - defined(OPENSSL_ALL) - - /* search suites for specific one, idx on success, negative on error */ -#ifndef WOLFSSL_TLS13 - static -#endif - int FindSuite(Suites* suites, byte first, byte second) - { - int i; - - if (suites == NULL || suites->suiteSz == 0) { - WOLFSSL_MSG("Suites pointer error or suiteSz 0"); - return SUITES_ERROR; - } - - for (i = 0; i < suites->suiteSz-1; i += SUITE_LEN) { - if (suites->suites[i] == first && - suites->suites[i+1] == second ) - return i; - } - - return MATCH_SUITE_ERROR; - } - -#endif - -#endif /* !WOLFSSL_NO_TLS12 */ - - /* Make sure server cert/key are valid for this suite, true on success */ - static int VerifyServerSuite(WOLFSSL* ssl, word16 idx) - { - int haveRSA = !ssl->options.haveStaticECC; - int havePSK = 0; - byte first; - byte second; - - WOLFSSL_ENTER("VerifyServerSuite"); - - if (ssl->suites == NULL) { - WOLFSSL_MSG("Suites pointer error"); - return 0; - } - - first = ssl->suites->suites[idx]; - second = ssl->suites->suites[idx+1]; - - #ifndef NO_PSK - havePSK = ssl->options.havePSK; - #endif - - if (ssl->options.haveNTRU) - haveRSA = 0; - - if (CipherRequires(first, second, REQUIRES_RSA)) { - WOLFSSL_MSG("Requires RSA"); - if (haveRSA == 0) { - WOLFSSL_MSG("Don't have RSA"); - return 0; - } - } - - if (CipherRequires(first, second, REQUIRES_DHE)) { - WOLFSSL_MSG("Requires DHE"); - if (ssl->options.haveDH == 0) { - WOLFSSL_MSG("Don't have DHE"); - return 0; - } - } - - if (CipherRequires(first, second, REQUIRES_ECC)) { - WOLFSSL_MSG("Requires ECC"); - if (ssl->options.haveECC == 0) { - WOLFSSL_MSG("Don't have ECC"); - return 0; - } - } - - if (CipherRequires(first, second, REQUIRES_ECC_STATIC)) { - WOLFSSL_MSG("Requires static ECC"); - if (ssl->options.haveStaticECC == 0) { - WOLFSSL_MSG("Don't have static ECC"); - return 0; - } - } - - if (CipherRequires(first, second, REQUIRES_PSK)) { - WOLFSSL_MSG("Requires PSK"); - if (havePSK == 0) { - WOLFSSL_MSG("Don't have PSK"); - return 0; - } - } - - if (CipherRequires(first, second, REQUIRES_NTRU)) { - WOLFSSL_MSG("Requires NTRU"); - if (ssl->options.haveNTRU == 0) { - WOLFSSL_MSG("Don't have NTRU"); - return 0; - } - } - - if (CipherRequires(first, second, REQUIRES_RSA_SIG)) { - WOLFSSL_MSG("Requires RSA Signature"); - if (ssl->options.side == WOLFSSL_SERVER_END && - ssl->options.haveECDSAsig == 1) { - WOLFSSL_MSG("Don't have RSA Signature"); - return 0; - } - } - -#if !defined(WOLFSSL_OLDTLS_AEAD_CIPHERSUITES) - if (CipherRequires(first, second, REQUIRES_AEAD)) { - WOLFSSL_MSG("Requires AEAD"); - if (ssl->version.major == SSLv3_MAJOR && - ssl->version.minor < TLSv1_2_MINOR) { - WOLFSSL_MSG("Version of SSL does not support AEAD ciphers"); - return 0; - } - - } -#endif - -#if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && defined(HAVE_SUPPORTED_CURVES) - if (!TLSX_ValidateSupportedCurves(ssl, first, second)) { - WOLFSSL_MSG("Don't have matching curves"); - return 0; - } -#endif - - /* ECCDHE is always supported if ECC on */ - -#ifdef HAVE_QSH - /* need to negotiate a classic suite in addition to TLS_QSH */ - if (first == QSH_BYTE && second == TLS_QSH) { - if (TLSX_SupportExtensions(ssl)) { - ssl->options.haveQSH = 1; /* matched TLS_QSH */ - } - else { - WOLFSSL_MSG("Version of SSL connection does not support " - "TLS_QSH"); - } - return 0; - } -#endif - -#ifdef WOLFSSL_TLS13 - if (IsAtLeastTLSv1_3(ssl->version) && - ssl->options.side == WOLFSSL_SERVER_END) { - /* Try to establish a key share. */ - int ret = TLSX_KeyShare_Establish(ssl); - if (ret == KEY_SHARE_ERROR) - ssl->options.serverState = SERVER_HELLO_RETRY_REQUEST_COMPLETE; - else if (ret != 0) - return 0; - } - else if (first == TLS13_BYTE || (first == ECC_BYTE && - (second == TLS_SHA256_SHA256 || second == TLS_SHA384_SHA384))) { - /* Can't negotiate TLS 1.3 cipher suites with lower protocol - * version. */ - return 0; - } -#endif - - return 1; - } - -#ifndef NO_WOLFSSL_SERVER - static int CompareSuites(WOLFSSL* ssl, Suites* peerSuites, word16 i, - word16 j) - { - if (ssl->suites->suites[i] == peerSuites->suites[j] && - ssl->suites->suites[i+1] == peerSuites->suites[j+1] ) { - - if (VerifyServerSuite(ssl, i)) { - int result; - WOLFSSL_MSG("Verified suite validity"); - ssl->options.cipherSuite0 = ssl->suites->suites[i]; - ssl->options.cipherSuite = ssl->suites->suites[i+1]; - result = SetCipherSpecs(ssl); - if (result == 0) { - result = PickHashSigAlgo(ssl, peerSuites->hashSigAlgo, - peerSuites->hashSigAlgoSz); - } - return result; - } - else { - WOLFSSL_MSG("Could not verify suite validity, continue"); - } - } - - return MATCH_SUITE_ERROR; - } - - int MatchSuite(WOLFSSL* ssl, Suites* peerSuites) - { - int ret; - word16 i, j; - - WOLFSSL_ENTER("MatchSuite"); - - /* & 0x1 equivalent % 2 */ - if (peerSuites->suiteSz == 0 || peerSuites->suiteSz & 0x1) - return BUFFER_ERROR; - - if (ssl->suites == NULL) - return SUITES_ERROR; - - if (!ssl->options.useClientOrder) { - /* Server order */ - for (i = 0; i < ssl->suites->suiteSz; i += 2) { - for (j = 0; j < peerSuites->suiteSz; j += 2) { - ret = CompareSuites(ssl, peerSuites, i, j); - if (ret != MATCH_SUITE_ERROR) - return ret; - } - } - } - else { - /* Client order */ - for (j = 0; j < peerSuites->suiteSz; j += 2) { - for (i = 0; i < ssl->suites->suiteSz; i += 2) { - ret = CompareSuites(ssl, peerSuites, i, j); - if (ret != MATCH_SUITE_ERROR) - return ret; - } - } - } - - return MATCH_SUITE_ERROR; - } -#endif - -#ifdef OLD_HELLO_ALLOWED - - /* process old style client hello, deprecate? */ - int ProcessOldClientHello(WOLFSSL* ssl, const byte* input, word32* inOutIdx, - word32 inSz, word16 sz) - { - word32 idx = *inOutIdx; - word16 sessionSz; - word16 randomSz; - word16 i, j; - ProtocolVersion pv; - Suites clSuites; - int ret = -1; - - (void)inSz; - WOLFSSL_MSG("Got old format client hello"); -#ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) - AddPacketName(ssl, "ClientHello"); - if (ssl->toInfoOn) - AddLateName("ClientHello", &ssl->timeoutInfo); -#endif - - /* manually hash input since different format */ -#ifndef NO_OLD_TLS -#ifndef NO_MD5 - wc_Md5Update(&ssl->hsHashes->hashMd5, input + idx, sz); -#endif -#ifndef NO_SHA - wc_ShaUpdate(&ssl->hsHashes->hashSha, input + idx, sz); -#endif -#endif -#ifndef NO_SHA256 - if (IsAtLeastTLSv1_2(ssl)) { - int shaRet = wc_Sha256Update(&ssl->hsHashes->hashSha256, - input + idx, sz); - if (shaRet != 0) - return shaRet; - } -#endif - - /* does this value mean client_hello? */ - idx++; - - /* version */ - pv.major = input[idx++]; - pv.minor = input[idx++]; - ssl->chVersion = pv; /* store */ - - if (ssl->version.minor > pv.minor) { - byte haveRSA = 0; - byte havePSK = 0; - int keySz = 0; - - if (!ssl->options.downgrade) { - WOLFSSL_MSG("Client trying to connect with lesser version"); - return VERSION_ERROR; - } - if (pv.minor < ssl->options.minDowngrade) { - WOLFSSL_MSG("\tversion below minimum allowed, fatal error"); - return VERSION_ERROR; - } - if (pv.minor == SSLv3_MINOR) { - /* turn off tls */ - WOLFSSL_MSG("\tdowngrading to SSLv3"); - ssl->options.tls = 0; - ssl->options.tls1_1 = 0; - ssl->version.minor = SSLv3_MINOR; - } - else if (pv.minor == TLSv1_MINOR) { - WOLFSSL_MSG("\tdowngrading to TLSv1"); - /* turn off tls 1.1+ */ - ssl->options.tls1_1 = 0; - ssl->version.minor = TLSv1_MINOR; - } - else if (pv.minor == TLSv1_1_MINOR) { - WOLFSSL_MSG("\tdowngrading to TLSv1.1"); - ssl->version.minor = TLSv1_1_MINOR; - } - else if (pv.minor == TLSv1_2_MINOR) { - WOLFSSL_MSG(" downgrading to TLSv1.2"); - ssl->version.minor = TLSv1_2_MINOR; - } -#ifndef NO_RSA - haveRSA = 1; -#endif -#ifndef NO_PSK - havePSK = ssl->options.havePSK; -#endif -#ifndef NO_CERTS - keySz = ssl->buffers.keySz; -#endif - - InitSuites(ssl->suites, ssl->version, keySz, haveRSA, havePSK, - ssl->options.haveDH, ssl->options.haveNTRU, - ssl->options.haveECDSAsig, ssl->options.haveECC, - ssl->options.haveStaticECC, ssl->options.side); - } - - /* suite size */ - ato16(&input[idx], &clSuites.suiteSz); - idx += OPAQUE16_LEN; - - if (clSuites.suiteSz > WOLFSSL_MAX_SUITE_SZ) - return BUFFER_ERROR; - clSuites.hashSigAlgoSz = 0; - - /* session size */ - ato16(&input[idx], &sessionSz); - idx += OPAQUE16_LEN; - - if (sessionSz > ID_LEN) - return BUFFER_ERROR; - - /* random size */ - ato16(&input[idx], &randomSz); - idx += OPAQUE16_LEN; - - if (randomSz > RAN_LEN) - return BUFFER_ERROR; - - /* suites */ - for (i = 0, j = 0; i < clSuites.suiteSz; i += 3) { - byte first = input[idx++]; - if (!first) { /* implicit: skip sslv2 type */ - XMEMCPY(&clSuites.suites[j], &input[idx], SUITE_LEN); - j += SUITE_LEN; - } - idx += SUITE_LEN; - } - clSuites.suiteSz = j; - - /* session id */ - if (sessionSz) { - XMEMCPY(ssl->arrays->sessionID, input + idx, sessionSz); - ssl->arrays->sessionIDSz = (byte)sessionSz; - idx += sessionSz; - ssl->options.resuming = 1; - } - - /* random */ - if (randomSz < RAN_LEN) - XMEMSET(ssl->arrays->clientRandom, 0, RAN_LEN - randomSz); - XMEMCPY(&ssl->arrays->clientRandom[RAN_LEN - randomSz], input + idx, - randomSz); - idx += randomSz; - - if (ssl->options.usingCompression) - ssl->options.usingCompression = 0; /* turn off */ - - ssl->options.clientState = CLIENT_HELLO_COMPLETE; - ssl->cbmode = SSL_CB_MODE_WRITE; - *inOutIdx = idx; - - ssl->options.haveSessionId = 1; - /* DoClientHello uses same resume code */ - if (ssl->options.resuming) { /* let's try */ - WOLFSSL_SESSION* session = GetSession(ssl, - ssl->arrays->masterSecret, 1); - #ifdef HAVE_SESSION_TICKET - if (ssl->options.useTicket == 1) { - session = &ssl->session; - } - #endif - - if (!session) { - WOLFSSL_MSG("Session lookup for resume failed"); - ssl->options.resuming = 0; - } else { - #ifdef HAVE_EXT_CACHE - wolfSSL_SESSION_free(session); - #endif - if (MatchSuite(ssl, &clSuites) < 0) { - WOLFSSL_MSG("Unsupported cipher suite, OldClientHello"); - return UNSUPPORTED_SUITE; - } - - ret = wc_RNG_GenerateBlock(ssl->rng, ssl->arrays->serverRandom, - RAN_LEN); - if (ret != 0) - return ret; - - #ifdef NO_OLD_TLS - ret = DeriveTlsKeys(ssl); - #else - #ifndef NO_TLS - if (ssl->options.tls) - ret = DeriveTlsKeys(ssl); - #endif - if (!ssl->options.tls) - ret = DeriveKeys(ssl); - #endif - ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE; - - return ret; - } - } - - ret = MatchSuite(ssl, &clSuites); - if (ret != 0)return ret; - return SanityCheckMsgReceived(ssl, client_hello); - } - -#endif /* OLD_HELLO_ALLOWED */ - -#ifndef WOLFSSL_NO_TLS12 - - int HandleTlsResumption(WOLFSSL* ssl, int bogusID, Suites* clSuites) - { - int ret = 0; - WOLFSSL_SESSION* session; - - (void)bogusID; - - session = GetSession(ssl, ssl->arrays->masterSecret, 1); - #ifdef HAVE_SESSION_TICKET - if (ssl->options.useTicket == 1) { - session = &ssl->session; - } else if (bogusID == 1 && ssl->options.rejectTicket == 0) { - WOLFSSL_MSG("Bogus session ID without session ticket"); - return BUFFER_ERROR; - } - #endif - - if (!session) { - WOLFSSL_MSG("Session lookup for resume failed"); - ssl->options.resuming = 0; - } - else if (session->haveEMS != ssl->options.haveEMS) { - /* RFC 7627, 5.3, server-side */ - /* if old sess didn't have EMS, but new does, full handshake */ - if (!session->haveEMS && ssl->options.haveEMS) { - WOLFSSL_MSG("Attempting to resume a session that didn't " - "use EMS with a new session with EMS. Do full " - "handshake."); - ssl->options.resuming = 0; - } - /* if old sess used EMS, but new doesn't, MUST abort */ - else if (session->haveEMS && !ssl->options.haveEMS) { - WOLFSSL_MSG("Trying to resume a session with EMS without " - "using EMS"); - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, handshake_failure); - #endif - return EXT_MASTER_SECRET_NEEDED_E; - } - #ifdef HAVE_EXT_CACHE - wolfSSL_SESSION_free(session); - #endif - } - else { - #ifndef NO_RESUME_SUITE_CHECK - int j; - - /* Check client suites include the one in session */ - for (j = 0; j < clSuites->suiteSz; j += 2) { - if (clSuites->suites[j] == session->cipherSuite0 && - clSuites->suites[j+1] == session->cipherSuite) { - break; - } - } - if (j == clSuites->suiteSz) { - WOLFSSL_MSG("Prev session's cipher suite not in ClientHello"); - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, illegal_parameter); - #endif - return UNSUPPORTED_SUITE; - } - #endif - - #ifdef HAVE_EXT_CACHE - wolfSSL_SESSION_free(session); - #endif - if (MatchSuite(ssl, clSuites) < 0) { - WOLFSSL_MSG("Unsupported cipher suite, ClientHello"); - return UNSUPPORTED_SUITE; - } - - ret = wc_RNG_GenerateBlock(ssl->rng, ssl->arrays->serverRandom, - RAN_LEN); - if (ret != 0) - return ret; - - #ifdef NO_OLD_TLS - ret = DeriveTlsKeys(ssl); - #else - #ifndef NO_TLS - if (ssl->options.tls) - ret = DeriveTlsKeys(ssl); - #endif - if (!ssl->options.tls) - ret = DeriveKeys(ssl); - #endif - ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE; - } - - return ret; - } - - - /* handle processing of client_hello (1) */ - int DoClientHello(WOLFSSL* ssl, const byte* input, word32* inOutIdx, - word32 helloSz) - { - byte b; - byte bogusID = 0; /* flag for a bogus session id */ - ProtocolVersion pv; - Suites clSuites; - word32 i = *inOutIdx; - word32 begin = i; - int ret = 0; -#ifdef WOLFSSL_DTLS - Hmac cookieHmac; - byte peerCookie[MAX_COOKIE_LEN]; - byte peerCookieSz = 0; - byte cookieType; - byte cookieSz = 0; - - XMEMSET(&cookieHmac, 0, sizeof(Hmac)); -#endif /* WOLFSSL_DTLS */ - - WOLFSSL_START(WC_FUNC_CLIENT_HELLO_DO); - WOLFSSL_ENTER("DoClientHello"); - -#ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) AddPacketName(ssl, "ClientHello"); - if (ssl->toInfoOn) AddLateName("ClientHello", &ssl->timeoutInfo); -#endif - /* protocol version, random and session id length check */ - if (OPAQUE16_LEN + RAN_LEN + OPAQUE8_LEN > helloSz) - return BUFFER_ERROR; - - /* protocol version */ - XMEMCPY(&pv, input + i, OPAQUE16_LEN); - ssl->chVersion = pv; /* store */ -#ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - #if defined(NO_SHA) && defined(NO_SHA256) - #error "DTLS needs either SHA or SHA-256" - #endif /* NO_SHA && NO_SHA256 */ - - #if !defined(NO_SHA) && defined(NO_SHA256) - cookieType = WC_SHA; - cookieSz = WC_SHA_DIGEST_SIZE; - #endif /* NO_SHA */ - #ifndef NO_SHA256 - cookieType = WC_SHA256; - cookieSz = WC_SHA256_DIGEST_SIZE; - #endif /* NO_SHA256 */ - ret = wc_HmacSetKey(&cookieHmac, cookieType, - ssl->buffers.dtlsCookieSecret.buffer, - ssl->buffers.dtlsCookieSecret.length); - if (ret != 0) return ret; - ret = wc_HmacUpdate(&cookieHmac, - (const byte*)ssl->buffers.dtlsCtx.peer.sa, - ssl->buffers.dtlsCtx.peer.sz); - if (ret != 0) return ret; - ret = wc_HmacUpdate(&cookieHmac, input + i, OPAQUE16_LEN); - if (ret != 0) return ret; - } -#endif /* WOLFSSL_DTLS */ - i += OPAQUE16_LEN; - - /* Legacy protocol version cannot negotiate TLS 1.3 or higher. */ - if (pv.major == SSLv3_MAJOR && pv.minor >= TLSv1_3_MINOR) - pv.minor = TLSv1_2_MINOR; - - if ((!ssl->options.dtls && ssl->version.minor > pv.minor) || - (ssl->options.dtls && ssl->version.minor != DTLS_MINOR - && ssl->version.minor != DTLSv1_2_MINOR && pv.minor != DTLS_MINOR - && pv.minor != DTLSv1_2_MINOR)) { - - word16 haveRSA = 0; - word16 havePSK = 0; - int keySz = 0; - - if (!ssl->options.downgrade) { - WOLFSSL_MSG("Client trying to connect with lesser version"); - return VERSION_ERROR; - } - if (pv.minor < ssl->options.minDowngrade) { - WOLFSSL_MSG("\tversion below minimum allowed, fatal error"); - return VERSION_ERROR; - } - - if (pv.minor == SSLv3_MINOR) { - /* turn off tls */ - WOLFSSL_MSG("\tdowngrading to SSLv3"); - ssl->options.tls = 0; - ssl->options.tls1_1 = 0; - ssl->version.minor = SSLv3_MINOR; - } - else if (pv.minor == TLSv1_MINOR) { - /* turn off tls 1.1+ */ - WOLFSSL_MSG("\tdowngrading to TLSv1"); - ssl->options.tls1_1 = 0; - ssl->version.minor = TLSv1_MINOR; - } - else if (pv.minor == TLSv1_1_MINOR) { - WOLFSSL_MSG("\tdowngrading to TLSv1.1"); - ssl->version.minor = TLSv1_1_MINOR; - } - else if (pv.minor == TLSv1_2_MINOR) { - WOLFSSL_MSG(" downgrading to TLSv1.2"); - ssl->version.minor = TLSv1_2_MINOR; - } -#ifndef NO_RSA - haveRSA = 1; -#endif -#ifndef NO_PSK - havePSK = ssl->options.havePSK; -#endif -#ifndef NO_CERTS - keySz = ssl->buffers.keySz; -#endif - InitSuites(ssl->suites, ssl->version, keySz, haveRSA, havePSK, - ssl->options.haveDH, ssl->options.haveNTRU, - ssl->options.haveECDSAsig, ssl->options.haveECC, - ssl->options.haveStaticECC, ssl->options.side); - } - -#ifdef OPENSSL_EXTRA - /* check if option is set to not allow the current version - * set from either wolfSSL_set_options or wolfSSL_CTX_set_options */ - if (!ssl->options.dtls && ssl->options.downgrade && - ssl->options.mask > 0) { - int reset = 0; - if (ssl->version.minor == TLSv1_2_MINOR && - (ssl->options.mask & SSL_OP_NO_TLSv1_2) == SSL_OP_NO_TLSv1_2) { - WOLFSSL_MSG("\tOption set to not allow TLSv1.2, Downgrading"); - ssl->version.minor = TLSv1_1_MINOR; - reset = 1; - } - if (ssl->version.minor == TLSv1_1_MINOR && - (ssl->options.mask & SSL_OP_NO_TLSv1_1) == SSL_OP_NO_TLSv1_1) { - WOLFSSL_MSG("\tOption set to not allow TLSv1.1, Downgrading"); - ssl->options.tls1_1 = 0; - ssl->version.minor = TLSv1_MINOR; - reset = 1; - } - if (ssl->version.minor == TLSv1_MINOR && - (ssl->options.mask & SSL_OP_NO_TLSv1) == SSL_OP_NO_TLSv1) { - WOLFSSL_MSG("\tOption set to not allow TLSv1, Downgrading"); - ssl->options.tls = 0; - ssl->options.tls1_1 = 0; - ssl->version.minor = SSLv3_MINOR; - reset = 1; - } - if (ssl->version.minor == SSLv3_MINOR && - (ssl->options.mask & SSL_OP_NO_SSLv3) == SSL_OP_NO_SSLv3) { - WOLFSSL_MSG("\tError, option set to not allow SSLv3"); - return VERSION_ERROR; - } - - if (ssl->version.minor < ssl->options.minDowngrade) { - WOLFSSL_MSG("\tversion below minimum allowed, fatal error"); - return VERSION_ERROR; - } - - if (reset) { - word16 haveRSA = 0; - word16 havePSK = 0; - int keySz = 0; - - #ifndef NO_RSA - haveRSA = 1; - #endif - #ifndef NO_PSK - havePSK = ssl->options.havePSK; - #endif - #ifndef NO_CERTS - keySz = ssl->buffers.keySz; - #endif - - /* reset cipher suites to account for TLS version change */ - InitSuites(ssl->suites, ssl->version, keySz, haveRSA, havePSK, - ssl->options.haveDH, ssl->options.haveNTRU, - ssl->options.haveECDSAsig, ssl->options.haveECC, - ssl->options.haveStaticECC, ssl->options.side); - } - } -#endif - - /* random */ - XMEMCPY(ssl->arrays->clientRandom, input + i, RAN_LEN); -#ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - ret = wc_HmacUpdate(&cookieHmac, input + i, RAN_LEN); - if (ret != 0) return ret; - } -#endif /* WOLFSSL_DTLS */ - i += RAN_LEN; - -#ifdef SHOW_SECRETS - { - int j; - printf("client random: "); - for (j = 0; j < RAN_LEN; j++) - printf("%02x", ssl->arrays->clientRandom[j]); - printf("\n"); - } -#endif - - /* session id */ - b = input[i++]; - -#ifdef HAVE_SESSION_TICKET - if (b > 0 && b < ID_LEN) { - bogusID = 1; - WOLFSSL_MSG("Client sent bogus session id, let's allow for echo"); - } -#endif - - if (b == ID_LEN || bogusID) { - if ((i - begin) + b > helloSz) - return BUFFER_ERROR; - - XMEMCPY(ssl->arrays->sessionID, input + i, b); -#ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - ret = wc_HmacUpdate(&cookieHmac, input + i - 1, b + 1); - if (ret != 0) return ret; - } -#endif /* WOLFSSL_DTLS */ - ssl->arrays->sessionIDSz = b; - i += b; - ssl->options.resuming = 1; /* client wants to resume */ - WOLFSSL_MSG("Client wants to resume session"); - } - else if (b) { - WOLFSSL_MSG("Invalid session ID size"); - return BUFFER_ERROR; /* session ID nor 0 neither 32 bytes long */ - } - - #ifdef WOLFSSL_DTLS - /* cookie */ - if (ssl->options.dtls) { - - if ((i - begin) + OPAQUE8_LEN > helloSz) - return BUFFER_ERROR; - - peerCookieSz = input[i++]; - - if (peerCookieSz) { - if (peerCookieSz > MAX_COOKIE_LEN) - return BUFFER_ERROR; - - if ((i - begin) + peerCookieSz > helloSz) - return BUFFER_ERROR; - - XMEMCPY(peerCookie, input + i, peerCookieSz); - - i += peerCookieSz; - } - } - #endif - - /* suites */ - if ((i - begin) + OPAQUE16_LEN > helloSz) - return BUFFER_ERROR; - - ato16(&input[i], &clSuites.suiteSz); - i += OPAQUE16_LEN; - - /* suites and compression length check */ - if ((i - begin) + clSuites.suiteSz + OPAQUE8_LEN > helloSz) - return BUFFER_ERROR; - - if (clSuites.suiteSz > WOLFSSL_MAX_SUITE_SZ) - return BUFFER_ERROR; - - XMEMCPY(clSuites.suites, input + i, clSuites.suiteSz); - -#ifdef HAVE_SERVER_RENEGOTIATION_INFO - /* check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV suite */ - if (FindSuite(&clSuites, 0, TLS_EMPTY_RENEGOTIATION_INFO_SCSV) >= 0) { - TLSX* extension; - - /* check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV suite */ - ret = TLSX_AddEmptyRenegotiationInfo(&ssl->extensions, ssl->heap); - if (ret != WOLFSSL_SUCCESS) - return ret; - - extension = TLSX_Find(ssl->extensions, TLSX_RENEGOTIATION_INFO); - if (extension) { - ssl->secure_renegotiation = - (SecureRenegotiation*)extension->data; - ssl->secure_renegotiation->enabled = 1; - } - } -#endif /* HAVE_SERVER_RENEGOTIATION_INFO */ -#if defined(HAVE_FALLBACK_SCSV) || defined(OPENSSL_ALL) - /* check for TLS_FALLBACK_SCSV suite */ - if (FindSuite(&clSuites, TLS_FALLBACK_SCSV, 0) >= 0) { - WOLFSSL_MSG("Found Fallback SCSV"); - if (ssl->ctx->method->version.minor > pv.minor) { - WOLFSSL_MSG("Client trying to connect with lesser version"); - SendAlert(ssl, alert_fatal, inappropriate_fallback); - return VERSION_ERROR; - } - } -#endif - -#ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - ret = wc_HmacUpdate(&cookieHmac, - input + i - OPAQUE16_LEN, - clSuites.suiteSz + OPAQUE16_LEN); - if (ret != 0) return ret; - } -#endif /* WOLFSSL_DTLS */ - i += clSuites.suiteSz; - clSuites.hashSigAlgoSz = 0; - - /* compression length */ - b = input[i++]; - - if ((i - begin) + b > helloSz) - return BUFFER_ERROR; - - if (b == 0) { - WOLFSSL_MSG("No compression types in list"); -#ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, decode_error); -#endif - return COMPRESSION_ERROR; - } - -#ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - byte newCookie[MAX_COOKIE_LEN]; - - ret = wc_HmacUpdate(&cookieHmac, input + i - 1, b + 1); - if (ret != 0) return ret; - ret = wc_HmacFinal(&cookieHmac, newCookie); - if (ret != 0) return ret; - - /* If a cookie callback is set, call it to overwrite the cookie. - * This should be deprecated. The code now calculates the cookie - * using an HMAC as expected. */ - if (ssl->ctx->CBIOCookie != NULL && - ssl->ctx->CBIOCookie(ssl, newCookie, cookieSz, - ssl->IOCB_CookieCtx) != cookieSz) { - return COOKIE_ERROR; - } - - /* Check the cookie, see if we progress the state machine. */ - if (peerCookieSz != cookieSz || - XMEMCMP(peerCookie, newCookie, cookieSz) != 0) { - - /* Send newCookie to client in a HelloVerifyRequest message - * and let the state machine alone. */ - ssl->msgsReceived.got_client_hello = 0; - ssl->keys.dtls_handshake_number = 0; - ssl->keys.dtls_expected_peer_handshake_number = 0; - *inOutIdx += helloSz; - return SendHelloVerifyRequest(ssl, newCookie, cookieSz); - } - - /* This was skipped in the DTLS case so we could handle the hello - * verify request. */ - ret = HashInput(ssl, input + *inOutIdx, helloSz); - if (ret != 0) return ret; - } -#endif /* WOLFSSL_DTLS */ - - { - /* compression match types */ - int matchNo = 0; - int matchZlib = 0; - - while (b--) { - byte comp = input[i++]; - - if (comp == NO_COMPRESSION) { - matchNo = 1; - } - if (comp == ZLIB_COMPRESSION) { - matchZlib = 1; - } - } - - if (ssl->options.usingCompression == 0 && matchNo) { - WOLFSSL_MSG("Matched No Compression"); - } else if (ssl->options.usingCompression && matchZlib) { - WOLFSSL_MSG("Matched zlib Compression"); - } else if (ssl->options.usingCompression && matchNo) { - WOLFSSL_MSG("Could only match no compression, turning off"); - ssl->options.usingCompression = 0; /* turn off */ - } else { - WOLFSSL_MSG("Could not match compression"); -#ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, illegal_parameter); -#endif - return COMPRESSION_ERROR; - } - } - - *inOutIdx = i; - - /* tls extensions */ - if ((i - begin) < helloSz) { -#ifdef HAVE_TLS_EXTENSIONS - #ifdef HAVE_QSH - QSH_Init(ssl); - #endif - if (TLSX_SupportExtensions(ssl)) -#else - if (IsAtLeastTLSv1_2(ssl)) -#endif - { - /* Process the hello extension. Skip unsupported. */ - word16 totalExtSz; - -#ifdef HAVE_TLS_EXTENSIONS - /* auto populate extensions supported unless user defined */ - if ((ret = TLSX_PopulateExtensions(ssl, 1)) != 0) - return ret; -#endif - - if ((i - begin) + OPAQUE16_LEN > helloSz) - return BUFFER_ERROR; - - ato16(&input[i], &totalExtSz); - i += OPAQUE16_LEN; - - if ((i - begin) + totalExtSz > helloSz) - return BUFFER_ERROR; - -#ifdef HAVE_TLS_EXTENSIONS - /* tls extensions */ - if ((ret = TLSX_Parse(ssl, (byte *) input + i, totalExtSz, - client_hello, &clSuites))) - return ret; - #ifdef WOLFSSL_TLS13 - if (TLSX_Find(ssl->extensions, - TLSX_SUPPORTED_VERSIONS) != NULL) { - WOLFSSL_MSG( - "Client attempting to connect with higher version"); - return VERSION_ERROR; - } - #endif - #if defined(OPENSSL_ALL) || defined(HAVE_STUNNEL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY) - if((ret=SNI_Callback(ssl))) - return ret; - ssl->options.side = WOLFSSL_SERVER_END; - #endif - - i += totalExtSz; -#else - while (totalExtSz) { - word16 extId, extSz; - - if (OPAQUE16_LEN + OPAQUE16_LEN > totalExtSz) - return BUFFER_ERROR; - - ato16(&input[i], &extId); - i += OPAQUE16_LEN; - ato16(&input[i], &extSz); - i += OPAQUE16_LEN; - - if (OPAQUE16_LEN + OPAQUE16_LEN + extSz > totalExtSz) - return BUFFER_ERROR; - - if (extId == HELLO_EXT_SIG_ALGO) { - word16 hashSigAlgoSz; - - ato16(&input[i], &hashSigAlgoSz); - i += OPAQUE16_LEN; - - if (OPAQUE16_LEN + hashSigAlgoSz > extSz) - return BUFFER_ERROR; - - clSuites.hashSigAlgoSz = hashSigAlgoSz; - if (clSuites.hashSigAlgoSz > WOLFSSL_MAX_SIGALGO) { - WOLFSSL_MSG("ClientHello SigAlgo list exceeds max, " - "truncating"); - clSuites.hashSigAlgoSz = WOLFSSL_MAX_SIGALGO; - } - - XMEMCPY(clSuites.hashSigAlgo, &input[i], - clSuites.hashSigAlgoSz); - - i += hashSigAlgoSz; - } -#ifdef HAVE_EXTENDED_MASTER - else if (extId == HELLO_EXT_EXTMS) - ssl->options.haveEMS = 1; -#endif - else - i += extSz; - - totalExtSz -= OPAQUE16_LEN + OPAQUE16_LEN + extSz; - } -#endif - *inOutIdx = i; - } - else - *inOutIdx = begin + helloSz; /* skip extensions */ - } - - ssl->options.clientState = CLIENT_HELLO_COMPLETE; - ssl->options.haveSessionId = 1; - - /* ProcessOld uses same resume code */ - if (ssl->options.resuming) { - ret = HandleTlsResumption(ssl, bogusID, &clSuites); - if (ret != 0) - return ret; - - #ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->secure_renegotiation && - ssl->secure_renegotiation->enabled && - IsEncryptionOn(ssl, 0)) - ssl->secure_renegotiation->startScr = 1; - #endif - - if (ssl->options.clientState == CLIENT_KEYEXCHANGE_COMPLETE) { - WOLFSSL_LEAVE("DoClientHello", ret); - WOLFSSL_END(WC_FUNC_CLIENT_HELLO_DO); - - return ret; - } - } - -#if defined(HAVE_TLS_EXTENSIONS) && defined(HAVE_DH_DEFAULT_PARAMS) - #if defined(HAVE_FFDHE) && defined(HAVE_SUPPORTED_CURVES) - if (TLSX_Find(ssl->extensions, TLSX_SUPPORTED_GROUPS) != NULL) { - /* Set FFDHE parameters or clear DHE parameters if FFDH parameters - * present and no matches in the server's list. */ - ret = TLSX_SupportedFFDHE_Set(ssl); - if (ret != 0) - return ret; - } - #endif -#endif - - ret = MatchSuite(ssl, &clSuites); -#ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_ERROR) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret < 0) - SendAlert(ssl, alert_fatal, handshake_failure); -#endif - -#ifdef HAVE_SECURE_RENEGOTIATION - if (ssl->secure_renegotiation && ssl->secure_renegotiation->enabled && - IsEncryptionOn(ssl, 0)) { - ssl->secure_renegotiation->startScr = 1; - } -#endif - WOLFSSL_LEAVE("DoClientHello", ret); - WOLFSSL_END(WC_FUNC_CLIENT_HELLO_DO); - - return ret; - } - - -#if (!defined(NO_RSA) || defined(HAVE_ECC) || defined(HAVE_ED25519) || \ - defined(HAVE_ED448)) && !defined(WOLFSSL_NO_CLIENT_AUTH) - - typedef struct DcvArgs { - byte* output; /* not allocated */ - word32 sendSz; - word16 sz; - word32 sigSz; - word32 idx; - word32 begin; - byte hashAlgo; - byte sigAlgo; - } DcvArgs; - - static void FreeDcvArgs(WOLFSSL* ssl, void* pArgs) - { - DcvArgs* args = (DcvArgs*)pArgs; - - (void)ssl; - (void)args; - } - - /* handle processing of certificate_verify (15) */ - static int DoCertificateVerify(WOLFSSL* ssl, byte* input, - word32* inOutIdx, word32 size) - { - int ret = 0; - #ifdef WOLFSSL_ASYNC_CRYPT - DcvArgs* args = (DcvArgs*)ssl->async.args; - typedef char args_test[sizeof(ssl->async.args) >= sizeof(*args) ? 1 : -1]; - (void)sizeof(args_test); - #else - DcvArgs args[1]; - #endif - - WOLFSSL_START(WC_FUNC_CERTIFICATE_VERIFY_DO); - WOLFSSL_ENTER("DoCertificateVerify"); - - #ifdef WOLFSSL_ASYNC_CRYPT - ret = wolfSSL_AsyncPop(ssl, &ssl->options.asyncState); - if (ret != WC_NOT_PENDING_E) { - /* Check for error */ - if (ret < 0) - goto exit_dcv; - } - else - #endif - { - /* Reset state */ - ret = 0; - ssl->options.asyncState = TLS_ASYNC_BEGIN; - XMEMSET(args, 0, sizeof(DcvArgs)); - args->hashAlgo = sha_mac; - args->sigAlgo = anonymous_sa_algo; - args->idx = *inOutIdx; - args->begin = *inOutIdx; - #ifdef WOLFSSL_ASYNC_CRYPT - ssl->async.freeArgs = FreeDcvArgs; - #endif - } - - switch(ssl->options.asyncState) - { - case TLS_ASYNC_BEGIN: - { - #ifdef WOLFSSL_CALLBACKS - if (ssl->hsInfoOn) - AddPacketName(ssl, "CertificateVerify"); - if (ssl->toInfoOn) - AddLateName("CertificateVerify", &ssl->timeoutInfo); - #endif - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_BUILD; - } /* case TLS_ASYNC_BEGIN */ - FALL_THROUGH; - - case TLS_ASYNC_BUILD: - { - if (IsAtLeastTLSv1_2(ssl)) { - if ((args->idx - args->begin) + ENUM_LEN + ENUM_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcv); - } - - DecodeSigAlg(&input[args->idx], &args->hashAlgo, - &args->sigAlgo); - args->idx += 2; - } - #ifndef NO_RSA - else if (ssl->peerRsaKey != NULL && ssl->peerRsaKeyPresent != 0) - args->sigAlgo = rsa_sa_algo; - #endif - #ifdef HAVE_ECC - else if (ssl->peerEccDsaKeyPresent) - args->sigAlgo = ecc_dsa_sa_algo; - #endif - #if defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH) - else if (ssl->peerEd25519KeyPresent) - args->sigAlgo = ed25519_sa_algo; - #endif /* HAVE_ED25519 && !NO_ED25519_CLIENT_AUTH */ - #if defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH) - else if (ssl->peerEd448KeyPresent) - args->sigAlgo = ed448_sa_algo; - #endif /* HAVE_ED448 && !NO_ED448_CLIENT_AUTH */ - - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcv); - } - - ato16(input + args->idx, &args->sz); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + args->sz > size || - args->sz > ENCRYPT_LEN) { - ERROR_OUT(BUFFER_ERROR, exit_dcv); - } - - #ifdef HAVE_ECC - if (ssl->peerEccDsaKeyPresent) { - - WOLFSSL_MSG("Doing ECC peer cert verify"); - - /* make sure a default is defined */ - #if !defined(NO_SHA) - SetDigest(ssl, sha_mac); - #elif !defined(NO_SHA256) - SetDigest(ssl, sha256_mac); - #elif defined(WOLFSSL_SHA384) - SetDigest(ssl, sha384_mac); - #elif defined(WOLFSSL_SHA512) - SetDigest(ssl, sha512_mac); - #else - #error No digest enabled for ECC sig verify - #endif - - if (IsAtLeastTLSv1_2(ssl)) { - if (args->sigAlgo != ecc_dsa_sa_algo) { - WOLFSSL_MSG("Oops, peer sent ECC key but not in verify"); - } - - SetDigest(ssl, args->hashAlgo); - } - } - #endif /* HAVE_ECC */ - #if defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH) - if (ssl->peerEd25519KeyPresent) { - WOLFSSL_MSG("Doing ED25519 peer cert verify"); - if (IsAtLeastTLSv1_2(ssl) && - args->sigAlgo != ed25519_sa_algo) { - WOLFSSL_MSG( - "Oops, peer sent ED25519 key but not in verify"); - } - } - #endif /* HAVE_ED25519 && !NO_ED25519_CLIENT_AUTH */ - #if defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH) - if (ssl->peerEd448KeyPresent) { - WOLFSSL_MSG("Doing ED448 peer cert verify"); - if (IsAtLeastTLSv1_2(ssl) && - args->sigAlgo != ed448_sa_algo) { - WOLFSSL_MSG( - "Oops, peer sent ED448 key but not in verify"); - } - } - #endif /* HAVE_ED448 && !NO_ED448_CLIENT_AUTH */ - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_DO; - } /* case TLS_ASYNC_BUILD */ - FALL_THROUGH; - - case TLS_ASYNC_DO: - { - #ifndef NO_RSA - if (ssl->peerRsaKey != NULL && ssl->peerRsaKeyPresent != 0) { - WOLFSSL_MSG("Doing RSA peer cert verify"); - - ret = RsaVerify(ssl, - input + args->idx, - args->sz, - &args->output, - args->sigAlgo, args->hashAlgo, - ssl->peerRsaKey, - #ifdef HAVE_PK_CALLBACKS - &ssl->buffers.peerRsaKey - #else - NULL - #endif - ); - if (ret >= 0) { - if (args->sigAlgo == rsa_sa_algo) - args->sendSz = ret; - else { - args->sigSz = ret; - args->sendSz = ssl->buffers.digest.length; - } - ret = 0; - } - } - #endif /* !NO_RSA */ - #ifdef HAVE_ECC - if (ssl->peerEccDsaKeyPresent) { - WOLFSSL_MSG("Doing ECC peer cert verify"); - - ret = EccVerify(ssl, - input + args->idx, args->sz, - ssl->buffers.digest.buffer, ssl->buffers.digest.length, - ssl->peerEccDsaKey, - #ifdef HAVE_PK_CALLBACKS - &ssl->buffers.peerEccDsaKey - #else - NULL - #endif - ); - } - #endif /* HAVE_ECC */ - #if defined(HAVE_ED25519) && !defined(NO_ED25519_CLIENT_AUTH) - if (ssl->peerEd25519KeyPresent) { - WOLFSSL_MSG("Doing Ed25519 peer cert verify"); - - ret = Ed25519Verify(ssl, - input + args->idx, args->sz, - ssl->hsHashes->messages, ssl->hsHashes->prevLen, - ssl->peerEd25519Key, - #ifdef HAVE_PK_CALLBACKS - &ssl->buffers.peerEd25519Key - #else - NULL - #endif - ); - } - #endif /* HAVE_ED25519 && !NO_ED25519_CLIENT_AUTH */ - #if defined(HAVE_ED448) && !defined(NO_ED448_CLIENT_AUTH) - if (ssl->peerEd448KeyPresent) { - WOLFSSL_MSG("Doing Ed448 peer cert verify"); - - ret = Ed448Verify(ssl, - input + args->idx, args->sz, - ssl->hsHashes->messages, ssl->hsHashes->prevLen, - ssl->peerEd448Key, - #ifdef HAVE_PK_CALLBACKS - &ssl->buffers.peerEd448Key - #else - NULL - #endif - ); - } - #endif /* HAVE_ED448 && !NO_ED448_CLIENT_AUTH */ - - #ifdef WOLFSSL_ASYNC_CRYPT - /* handle async pending */ - if (ret == WC_PENDING_E) - goto exit_dcv; - #endif - - /* Check for error */ - if (ret != 0) { - ret = SIG_VERIFY_E; - goto exit_dcv; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_VERIFY; - } /* case TLS_ASYNC_DO */ - FALL_THROUGH; - - case TLS_ASYNC_VERIFY: - { - #ifndef NO_RSA - if (ssl->peerRsaKey != NULL && ssl->peerRsaKeyPresent != 0) { - if (IsAtLeastTLSv1_2(ssl)) { - #ifdef WC_RSA_PSS - if (args->sigAlgo == rsa_pss_sa_algo) { - SetDigest(ssl, args->hashAlgo); - - #ifdef HAVE_SELFTEST - ret = wc_RsaPSS_CheckPadding( - ssl->buffers.digest.buffer, - ssl->buffers.digest.length, - args->output, args->sigSz, - HashAlgoToType(args->hashAlgo)); - #else - ret = wc_RsaPSS_CheckPadding_ex( - ssl->buffers.digest.buffer, - ssl->buffers.digest.length, - args->output, args->sigSz, - HashAlgoToType(args->hashAlgo), -1, - mp_count_bits(&ssl->peerRsaKey->n)); - #endif - if (ret != 0) { - ret = SIG_VERIFY_E; - goto exit_dcv; - } - } - else - #endif - { - #ifdef WOLFSSL_SMALL_STACK - byte* encodedSig; - #else - byte encodedSig[MAX_ENCODED_SIG_SZ]; - #endif - - #ifdef WOLFSSL_SMALL_STACK - encodedSig = (byte*)XMALLOC(MAX_ENCODED_SIG_SZ, - ssl->heap, DYNAMIC_TYPE_SIGNATURE); - if (encodedSig == NULL) { - ERROR_OUT(MEMORY_E, exit_dcv); - } - #endif - - if (args->sigAlgo != rsa_sa_algo) { - WOLFSSL_MSG("Oops, peer sent RSA key but not " - "in verify"); - } - - SetDigest(ssl, args->hashAlgo); - - args->sigSz = wc_EncodeSignature(encodedSig, - ssl->buffers.digest.buffer, - ssl->buffers.digest.length, - TypeHash(args->hashAlgo)); - - if (args->sendSz != args->sigSz || !args->output || - XMEMCMP(args->output, encodedSig, - min(args->sigSz, MAX_ENCODED_SIG_SZ)) != 0) { - ret = VERIFY_CERT_ERROR; - } - - #ifdef WOLFSSL_SMALL_STACK - XFREE(encodedSig, ssl->heap, DYNAMIC_TYPE_SIGNATURE); - #endif - } - } - else { - if (args->sendSz != FINISHED_SZ || !args->output || - XMEMCMP(args->output, - &ssl->hsHashes->certHashes, FINISHED_SZ) != 0) { - ret = VERIFY_CERT_ERROR; - } - } - } - #endif /* !NO_RSA */ - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_FINALIZE; - } /* case TLS_ASYNC_VERIFY */ - FALL_THROUGH; - - case TLS_ASYNC_FINALIZE: - { - if (IsEncryptionOn(ssl, 0)) { - args->idx += ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - args->idx += MacSize(ssl); - #endif - } - - ssl->options.havePeerVerify = 1; - - /* Set final index */ - args->idx += args->sz; - *inOutIdx = args->idx; - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_END; - } /* case TLS_ASYNC_FINALIZE */ - - case TLS_ASYNC_END: - { - break; - } - default: - ret = INPUT_CASE_ERROR; - } /* switch(ssl->options.asyncState) */ - - exit_dcv: - - WOLFSSL_LEAVE("DoCertificateVerify", ret); - WOLFSSL_END(WC_FUNC_CERTIFICATE_VERIFY_DO); - - #ifdef WOLFSSL_ASYNC_CRYPT - /* Handle async operation */ - if (ret == WC_PENDING_E) { - /* Mark message as not received so it can process again */ - ssl->msgsReceived.got_certificate_verify = 0; - - return ret; - } - #endif /* WOLFSSL_ASYNC_CRYPT */ - #ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_ERROR) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret == SIG_VERIFY_E) - SendAlert(ssl, alert_fatal, decrypt_error); - else if (ret != 0) - SendAlert(ssl, alert_fatal, bad_certificate); - #endif - /* Digest is not allocated, so do this to prevent free */ - ssl->buffers.digest.buffer = NULL; - ssl->buffers.digest.length = 0; - - /* Final cleanup */ - FreeDcvArgs(ssl, args); - FreeKeyExchange(ssl); - - return ret; - } - -#endif /* (!NO_RSA || ECC || ED25519 || ED448) && !WOLFSSL_NO_CLIENT_AUTH */ - - /* handle generation of server_hello_done (14) */ - int SendServerHelloDone(WOLFSSL* ssl) - { - byte* output; - int sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - int ret; - - WOLFSSL_START(WC_FUNC_SERVER_HELLO_DONE_SEND); - WOLFSSL_ENTER("SendServerHelloDone"); - - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) - sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - #endif - - if (IsEncryptionOn(ssl, 1)) - sendSz += MAX_MSG_EXTRA; - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) - return ret; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(output, 0, server_hello_done, ssl); - - if (IsEncryptionOn(ssl, 1)) { - byte* input; - int inputSz = HANDSHAKE_HEADER_SZ; /* build msg adds rec hdr */ - - input = (byte*)XMALLOC(inputSz, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - if (input == NULL) - return MEMORY_E; - - XMEMCPY(input, output + RECORD_HEADER_SZ, inputSz); - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - handshake, 1, 0, 0); - XFREE(input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - - if (sendSz < 0) - return sendSz; - } else { - #ifdef WOLFSSL_DTLS - if (IsDtlsNotSctpMode(ssl)) { - if ((ret = DtlsMsgPoolSave(ssl, output, sendSz)) != 0) - return ret; - } - if (ssl->options.dtls) - DtlsSEQIncrement(ssl, CUR_ORDER); - #endif - ret = HashOutput(ssl, output, sendSz, 0); - if (ret != 0) - return ret; - } - - #if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "ServerHelloDone"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "ServerHelloDone", handshake, output, sendSz, - WRITE_PROTO, ssl->heap); - #endif - ssl->options.serverState = SERVER_HELLODONE_COMPLETE; - - ssl->buffers.outputBuffer.length += sendSz; - - ret = SendBuffered(ssl); - - WOLFSSL_LEAVE("SendServerHelloDone", ret); - WOLFSSL_END(WC_FUNC_SERVER_HELLO_DONE_SEND); - - return ret; - } - -#endif /* !WOLFSSL_NO_TLS12 */ - -#ifdef HAVE_SESSION_TICKET - -#define WOLFSSL_TICKET_FIXED_SZ (WOLFSSL_TICKET_NAME_SZ + \ - WOLFSSL_TICKET_IV_SZ + WOLFSSL_TICKET_MAC_SZ + LENGTH_SZ) -#define WOLFSSL_TICKET_ENC_SZ (SESSION_TICKET_LEN - WOLFSSL_TICKET_FIXED_SZ) - - /* our ticket format */ - typedef struct InternalTicket { - ProtocolVersion pv; /* version when ticket created */ - byte suite[SUITE_LEN]; /* cipher suite when created */ - byte msecret[SECRET_LEN]; /* master secret */ - word32 timestamp; /* born on */ - word16 haveEMS; /* have extended master secret */ -#ifdef WOLFSSL_TLS13 - word32 ageAdd; /* Obfuscation of age */ - word16 namedGroup; /* Named group used */ - #ifndef WOLFSSL_TLS13_DRAFT_18 - TicketNonce ticketNonce; /* Ticket nonce */ - #endif - #ifdef WOLFSSL_EARLY_DATA - word32 maxEarlyDataSz; /* Max size of early data */ - #endif -#endif - } InternalTicket; - - /* fit within SESSION_TICKET_LEN */ - typedef struct ExternalTicket { - byte key_name[WOLFSSL_TICKET_NAME_SZ]; /* key context name */ - byte iv[WOLFSSL_TICKET_IV_SZ]; /* this ticket's iv */ - byte enc_len[LENGTH_SZ]; /* encrypted length */ - byte enc_ticket[WOLFSSL_TICKET_ENC_SZ]; /* encrypted internal ticket */ - byte mac[WOLFSSL_TICKET_MAC_SZ]; /* total mac */ - /* !! if add to structure, add to TICKET_FIXED_SZ !! */ - } ExternalTicket; - - /* create a new session ticket, 0 on success */ - int CreateTicket(WOLFSSL* ssl) - { - InternalTicket it; - ExternalTicket* et = (ExternalTicket*)ssl->session.ticket; - int encLen; - int ret; - byte zeros[WOLFSSL_TICKET_MAC_SZ]; /* biggest cmp size */ - - XMEMSET(&it, 0, sizeof(it)); - - /* build internal */ - it.pv.major = ssl->version.major; - it.pv.minor = ssl->version.minor; - - it.suite[0] = ssl->options.cipherSuite0; - it.suite[1] = ssl->options.cipherSuite; - - #ifdef WOLFSSL_EARLY_DATA - it.maxEarlyDataSz = ssl->options.maxEarlyDataSz; - #endif - - if (!ssl->options.tls1_3) { - XMEMCPY(it.msecret, ssl->arrays->masterSecret, SECRET_LEN); - c32toa(LowResTimer(), (byte*)&it.timestamp); - it.haveEMS = ssl->options.haveEMS; - } - else { -#ifdef WOLFSSL_TLS13 - /* Client adds to ticket age to obfuscate. */ - ret = wc_RNG_GenerateBlock(ssl->rng, (byte*)&it.ageAdd, - sizeof(it.ageAdd)); - if (ret != 0) - return BAD_TICKET_ENCRYPT; - ssl->session.ticketAdd = it.ageAdd; - it.namedGroup = ssl->session.namedGroup; - it.timestamp = TimeNowInMilliseconds(); - /* Resumption master secret. */ - XMEMCPY(it.msecret, ssl->session.masterSecret, SECRET_LEN); - #ifndef WOLFSSL_TLS13_DRAFT_18 - XMEMCPY(&it.ticketNonce, &ssl->session.ticketNonce, - sizeof(TicketNonce)); - #endif -#endif - } - - /* build external */ - XMEMCPY(et->enc_ticket, &it, sizeof(InternalTicket)); - - /* encrypt */ - encLen = WOLFSSL_TICKET_ENC_SZ; /* max size user can use */ - if (ssl->ctx->ticketEncCb == NULL) { - ret = WOLFSSL_TICKET_RET_FATAL; - } - else { - ret = ssl->ctx->ticketEncCb(ssl, et->key_name, et->iv, et->mac, 1, - et->enc_ticket, sizeof(InternalTicket), - &encLen, ssl->ctx->ticketEncCtx); - } - if (ret == WOLFSSL_TICKET_RET_OK) { - if (encLen < (int)sizeof(InternalTicket) || - encLen > WOLFSSL_TICKET_ENC_SZ) { - WOLFSSL_MSG("Bad user ticket encrypt size"); - return BAD_TICKET_KEY_CB_SZ; - } - - /* sanity checks on encrypt callback */ - - /* internal ticket can't be the same if encrypted */ - if (XMEMCMP(et->enc_ticket, &it, sizeof(InternalTicket)) == 0) { - WOLFSSL_MSG("User ticket encrypt didn't encrypt"); - return BAD_TICKET_ENCRYPT; - } - - XMEMSET(zeros, 0, sizeof(zeros)); - - /* name */ - if (XMEMCMP(et->key_name, zeros, WOLFSSL_TICKET_NAME_SZ) == 0) { - WOLFSSL_MSG("User ticket encrypt didn't set name"); - return BAD_TICKET_ENCRYPT; - } - - /* iv */ - if (XMEMCMP(et->iv, zeros, WOLFSSL_TICKET_IV_SZ) == 0) { - WOLFSSL_MSG("User ticket encrypt didn't set iv"); - return BAD_TICKET_ENCRYPT; - } - - /* mac */ - if (XMEMCMP(et->mac, zeros, WOLFSSL_TICKET_MAC_SZ) == 0) { - WOLFSSL_MSG("User ticket encrypt didn't set mac"); - return BAD_TICKET_ENCRYPT; - } - - /* set size */ - c16toa((word16)encLen, et->enc_len); - ssl->session.ticketLen = (word16)(encLen + WOLFSSL_TICKET_FIXED_SZ); - if (encLen < WOLFSSL_TICKET_ENC_SZ) { - /* move mac up since whole enc buffer not used */ - XMEMMOVE(et->enc_ticket +encLen, et->mac,WOLFSSL_TICKET_MAC_SZ); - } - } - - return ret; - } - - - /* Parse ticket sent by client, returns callback return value */ - int DoClientTicket(WOLFSSL* ssl, const byte* input, word32 len) - { - ExternalTicket* et; - InternalTicket* it; - int ret; - int outLen; - word16 inLen; - - WOLFSSL_START(WC_FUNC_TICKET_DO); - WOLFSSL_ENTER("DoClientTicket"); - - if (len > SESSION_TICKET_LEN || - len < (word32)(sizeof(InternalTicket) + WOLFSSL_TICKET_FIXED_SZ)) { - return BAD_TICKET_MSG_SZ; - } - - et = (ExternalTicket*)input; - it = (InternalTicket*)et->enc_ticket; - - /* decrypt */ - ato16(et->enc_len, &inLen); - if (inLen > (word16)(len - WOLFSSL_TICKET_FIXED_SZ)) { - return BAD_TICKET_MSG_SZ; - } - outLen = inLen; /* may be reduced by user padding */ - - if (ssl->ctx->ticketEncCb == NULL) { - ret = WOLFSSL_TICKET_RET_FATAL; - } - else { - ret = ssl->ctx->ticketEncCb(ssl, et->key_name, et->iv, - et->enc_ticket + inLen, 0, - et->enc_ticket, inLen, &outLen, - ssl->ctx->ticketEncCtx); - } - if (ret == WOLFSSL_TICKET_RET_FATAL || ret < 0) return ret; - if (outLen > (int)inLen || outLen < (int)sizeof(InternalTicket)) { - WOLFSSL_MSG("Bad user ticket decrypt len"); - return BAD_TICKET_KEY_CB_SZ; - } - - /* get master secret */ - if (ret == WOLFSSL_TICKET_RET_OK || ret == WOLFSSL_TICKET_RET_CREATE) { - if (ssl->version.minor < it->pv.minor) { - WOLFSSL_MSG("Ticket has greater version"); - return VERSION_ERROR; - } - else if (ssl->version.minor > it->pv.minor) { - if (!ssl->options.downgrade) { - WOLFSSL_MSG("Ticket has lesser version"); - return VERSION_ERROR; - } - - WOLFSSL_MSG("Downgrading protocol due to ticket"); - - if (it->pv.minor < ssl->options.minDowngrade) - return VERSION_ERROR; - ssl->version.minor = it->pv.minor; - } - - - if (!IsAtLeastTLSv1_3(ssl->version)) { - XMEMCPY(ssl->arrays->masterSecret, it->msecret, SECRET_LEN); - /* Copy the haveExtendedMasterSecret property from the ticket to - * the saved session, so the property may be checked later. */ - ssl->session.haveEMS = it->haveEMS; - #ifndef NO_RESUME_SUITE_CHECK - ssl->session.cipherSuite0 = it->suite[0]; - ssl->session.cipherSuite = it->suite[1]; - #endif - } - else { -#ifdef WOLFSSL_TLS13 - /* Restore information to renegotiate. */ - ssl->session.ticketSeen = it->timestamp; - ssl->session.ticketAdd = it->ageAdd; - ssl->session.cipherSuite0 = it->suite[0]; - ssl->session.cipherSuite = it->suite[1]; - #ifdef WOLFSSL_EARLY_DATA - ssl->session.maxEarlyDataSz = it->maxEarlyDataSz; - #endif - /* Resumption master secret. */ - XMEMCPY(ssl->session.masterSecret, it->msecret, SECRET_LEN); - #ifndef WOLFSSL_TLS13_DRAFT_18 - XMEMCPY(&ssl->session.ticketNonce, &it->ticketNonce, - sizeof(TicketNonce)); - #endif - ssl->session.namedGroup = it->namedGroup; -#endif - } - } - - WOLFSSL_LEAVE("DoClientTicket", ret); - WOLFSSL_END(WC_FUNC_TICKET_DO); - - return ret; - } - - - /* send Session Ticket */ - int SendTicket(WOLFSSL* ssl) - { - byte* output; - int ret; - int sendSz; - word32 length = SESSION_HINT_SZ + LENGTH_SZ; - word32 idx = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - - WOLFSSL_START(WC_FUNC_TICKET_SEND); - WOLFSSL_ENTER("SendTicket"); - - if (ssl->options.createTicket) { - ret = CreateTicket(ssl); - if (ret != 0) return ret; - } - - length += ssl->session.ticketLen; - sendSz = length + HANDSHAKE_HEADER_SZ + RECORD_HEADER_SZ; - - if (!ssl->options.dtls) { - if (IsEncryptionOn(ssl, 1) && ssl->options.handShakeDone) - sendSz += MAX_MSG_EXTRA; - } - else { - #ifdef WOLFSSL_DTLS - sendSz += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - idx += DTLS_RECORD_EXTRA + DTLS_HANDSHAKE_EXTRA; - #endif - } - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) - return ret; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(output, length, session_ticket, ssl); - - /* hint */ - c32toa(ssl->ctx->ticketHint, output + idx); - idx += SESSION_HINT_SZ; - - /* length */ - c16toa(ssl->session.ticketLen, output + idx); - idx += LENGTH_SZ; - - /* ticket */ - XMEMCPY(output + idx, ssl->session.ticket, ssl->session.ticketLen); - idx += ssl->session.ticketLen; - - if (IsEncryptionOn(ssl, 1) && ssl->options.handShakeDone) { - byte* input; - int inputSz = idx - RECORD_HEADER_SZ; /* build msg adds rec hdr */ - - input = (byte*)XMALLOC(inputSz, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - if (input == NULL) - return MEMORY_E; - - XMEMCPY(input, output + RECORD_HEADER_SZ, inputSz); - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - handshake, 1, 0, 0); - XFREE(input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - - if (sendSz < 0) - return sendSz; - } - else { - #ifdef WOLFSSL_DTLS - if (ssl->options.dtls) { - if ((ret = DtlsMsgPoolSave(ssl, output, sendSz)) != 0) - return ret; - - DtlsSEQIncrement(ssl, CUR_ORDER); - } - #endif - ret = HashOutput(ssl, output, sendSz, 0); - if (ret != 0) - return ret; - } - - ssl->buffers.outputBuffer.length += sendSz; - - ret = SendBuffered(ssl); - - WOLFSSL_LEAVE("SendTicket", ret); - WOLFSSL_END(WC_FUNC_TICKET_SEND); - - return ret; - } - -#endif /* HAVE_SESSION_TICKET */ - -#ifndef WOLFSSL_NO_TLS12 - -#if defined(HAVE_SECURE_RENEGOTIATION) && \ - defined(HAVE_SERVER_RENEGOTIATION_INFO) && \ - !defined(WOLFSSL_NO_SERVER) - - /* handle generation of server's hello_request (0) */ - int SendHelloRequest(WOLFSSL* ssl) - { - byte* output; - int sendSz = RECORD_HEADER_SZ + HANDSHAKE_HEADER_SZ; - int ret; - - WOLFSSL_START(WC_FUNC_HELLO_REQUEST_SEND); - WOLFSSL_ENTER("SendHelloRequest"); - - if (IsEncryptionOn(ssl, 1)) - sendSz += MAX_MSG_EXTRA; - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) - return ret; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - AddHeaders(output, 0, hello_request, ssl); - - if (IsEncryptionOn(ssl, 1)) { - byte* input; - int inputSz = HANDSHAKE_HEADER_SZ; /* build msg adds rec hdr */ - - input = (byte*)XMALLOC(inputSz, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - if (input == NULL) - return MEMORY_E; - - XMEMCPY(input, output + RECORD_HEADER_SZ, inputSz); - sendSz = BuildMessage(ssl, output, sendSz, input, inputSz, - handshake, 0, 0, 0); - XFREE(input, ssl->heap, DYNAMIC_TYPE_IN_BUFFER); - - if (sendSz < 0) - return sendSz; - } - - ssl->buffers.outputBuffer.length += sendSz; - - ret = SendBuffered(ssl); - - WOLFSSL_LEAVE("SendHelloRequest", ret); - WOLFSSL_END(WC_FUNC_HELLO_REQUEST_SEND); - - return ret; - } - -#endif /* HAVE_SECURE_RENEGOTIATION && HAVE_SERVER_RENEGOTIATION_INFO */ - -#ifdef WOLFSSL_DTLS - /* handle generation of DTLS hello_verify_request (3) */ - static int SendHelloVerifyRequest(WOLFSSL* ssl, - const byte* cookie, byte cookieSz) - { - byte* output; - int length = VERSION_SZ + ENUM_LEN + cookieSz; - int idx = DTLS_RECORD_HEADER_SZ + DTLS_HANDSHAKE_HEADER_SZ; - int sendSz = length + idx; - int ret; - - /* check for available size */ - if ((ret = CheckAvailableSize(ssl, sendSz)) != 0) - return ret; - - /* get output buffer */ - output = ssl->buffers.outputBuffer.buffer + - ssl->buffers.outputBuffer.length; - - /* Hello Verify Request should use the same sequence number as the - * Client Hello. */ - ssl->keys.dtls_sequence_number_hi = ssl->keys.curSeq_hi; - ssl->keys.dtls_sequence_number_lo = ssl->keys.curSeq_lo; - AddHeaders(output, length, hello_verify_request, ssl); - -#ifdef OPENSSL_EXTRA - output[idx++] = DTLS_MAJOR; - output[idx++] = DTLS_MINOR; -#else - output[idx++] = ssl->version.major; - output[idx++] = ssl->version.minor; -#endif - - output[idx++] = cookieSz; - if (cookie == NULL || cookieSz == 0) - return COOKIE_ERROR; - - XMEMCPY(output + idx, cookie, cookieSz); - -#if defined(WOLFSSL_CALLBACKS) || defined(OPENSSL_EXTRA) - if (ssl->hsInfoOn) - AddPacketName(ssl, "HelloVerifyRequest"); - if (ssl->toInfoOn) - AddPacketInfo(ssl, "HelloVerifyRequest", handshake, output, - sendSz, WRITE_PROTO, ssl->heap); -#endif - - ssl->buffers.outputBuffer.length += sendSz; - - return SendBuffered(ssl); - } -#endif /* WOLFSSL_DTLS */ - - typedef struct DckeArgs { - byte* output; /* not allocated */ - word32 length; - word32 idx; - word32 begin; - word32 sigSz; - #ifndef NO_RSA - int lastErr; - #endif - } DckeArgs; - - static void FreeDckeArgs(WOLFSSL* ssl, void* pArgs) - { - DckeArgs* args = (DckeArgs*)pArgs; - - (void)ssl; - (void)args; - } - - /* handle processing client_key_exchange (16) */ - static int DoClientKeyExchange(WOLFSSL* ssl, byte* input, word32* inOutIdx, - word32 size) - { - int ret; - #ifdef WOLFSSL_ASYNC_CRYPT - DckeArgs* args = (DckeArgs*)ssl->async.args; - typedef char args_test[sizeof(ssl->async.args) >= sizeof(*args) ? 1 : -1]; - (void)sizeof(args_test); - #else - DckeArgs args[1]; - #endif - - (void)size; - (void)input; - - WOLFSSL_START(WC_FUNC_CLIENT_KEY_EXCHANGE_DO); - WOLFSSL_ENTER("DoClientKeyExchange"); - - #ifdef WOLFSSL_ASYNC_CRYPT - ret = wolfSSL_AsyncPop(ssl, &ssl->options.asyncState); - if (ret != WC_NOT_PENDING_E) { - /* Check for error */ - if (ret < 0) - goto exit_dcke; - } - else - #endif /* WOLFSSL_ASYNC_CRYPT */ - { - /* Reset state */ - ret = 0; - ssl->options.asyncState = TLS_ASYNC_BEGIN; - XMEMSET(args, 0, sizeof(DckeArgs)); - args->idx = *inOutIdx; - args->begin = *inOutIdx; - #ifdef WOLFSSL_ASYNC_CRYPT - ssl->async.freeArgs = FreeDckeArgs; - #endif - } - - /* Do Client Key Exchange State Machine */ - switch(ssl->options.asyncState) - { - case TLS_ASYNC_BEGIN: - { - /* Sanity checks */ - if (ssl->options.side != WOLFSSL_SERVER_END) { - WOLFSSL_MSG("Client received client keyexchange, attack?"); - WOLFSSL_ERROR(ssl->error = SIDE_ERROR); - ERROR_OUT(WOLFSSL_FATAL_ERROR, exit_dcke); - } - - if (ssl->options.clientState < CLIENT_HELLO_COMPLETE) { - WOLFSSL_MSG("Client sending keyexchange at wrong time"); - SendAlert(ssl, alert_fatal, unexpected_message); - ERROR_OUT(OUT_OF_ORDER_E, exit_dcke); - } - - #ifndef NO_CERTS - if (ssl->options.verifyPeer && ssl->options.failNoCert) { - if (!ssl->options.havePeerCert) { - WOLFSSL_MSG("client didn't present peer cert"); - ERROR_OUT(NO_PEER_CERT, exit_dcke); - } - } - - if (ssl->options.verifyPeer && ssl->options.failNoCertxPSK) { - if (!ssl->options.havePeerCert && - !ssl->options.usingPSK_cipher) { - WOLFSSL_MSG("client didn't present peer cert"); - return NO_PEER_CERT; - } - } - #endif /* !NO_CERTS */ - - #if defined(WOLFSSL_CALLBACKS) - if (ssl->hsInfoOn) { - AddPacketName(ssl, "ClientKeyExchange"); - } - if (ssl->toInfoOn) { - AddLateName("ClientKeyExchange", &ssl->timeoutInfo); - } - #endif - - if (ssl->arrays->preMasterSecret == NULL) { - ssl->arrays->preMasterSz = ENCRYPT_LEN; - ssl->arrays->preMasterSecret = (byte*)XMALLOC(ENCRYPT_LEN, - ssl->heap, DYNAMIC_TYPE_SECRET); - if (ssl->arrays->preMasterSecret == NULL) { - ERROR_OUT(MEMORY_E, exit_dcke); - } - XMEMSET(ssl->arrays->preMasterSecret, 0, ENCRYPT_LEN); - } - - switch (ssl->specs.kea) { - #ifndef NO_RSA - case rsa_kea: - { - break; - } /* rsa_kea */ - #endif /* !NO_RSA */ - #ifndef NO_PSK - case psk_kea: - { - /* sanity check that PSK server callback has been set */ - if (ssl->options.server_psk_cb == NULL) { - WOLFSSL_MSG("No server PSK callback set"); - ERROR_OUT(PSK_KEY_ERROR, exit_dcke); - } - break; - } - #endif /* !NO_PSK */ - #ifdef HAVE_NTRU - case ntru_kea: - { - /* make sure private key exists */ - if (ssl->buffers.key == NULL || - ssl->buffers.key->buffer == NULL) { - ERROR_OUT(NO_PRIVATE_KEY, exit_dcke); - } - break; - } - #endif /* HAVE_NTRU */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - #ifndef NO_DH - case diffie_hellman_kea: - { - break; - } - #endif /* !NO_DH */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - /* sanity check that PSK server callback has been set */ - if (ssl->options.server_psk_cb == NULL) { - WOLFSSL_MSG("No server PSK callback set"); - ERROR_OUT(PSK_KEY_ERROR, exit_dcke); - } - break; - } - #endif /* !NO_DH && !NO_PSK */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - /* sanity check that PSK server callback has been set */ - if (ssl->options.server_psk_cb == NULL) { - WOLFSSL_MSG("No server PSK callback set"); - ERROR_OUT(PSK_KEY_ERROR, exit_dcke); - } - break; - } - #endif /* (HAVE_ECC || CURVE25519 || CURVE448) && !NO_PSK */ - default: - WOLFSSL_MSG("Bad kea type"); - ret = BAD_KEA_TYPE_E; - } /* switch (ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_dcke; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_BUILD; - } /* TLS_ASYNC_BEGIN */ - FALL_THROUGH; - - case TLS_ASYNC_BUILD: - { - switch (ssl->specs.kea) { - #ifndef NO_RSA - case rsa_kea: - { - word16 keySz; - - ssl->buffers.keyType = rsa_sa_algo; - ret = DecodePrivateKey(ssl, &keySz); - if (ret != 0) { - goto exit_dcke; - } - args->length = (word32)keySz; - ssl->arrays->preMasterSz = SECRET_LEN; - - if (ssl->options.tls) { - word16 check; - - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - ato16(input + args->idx, &check); - args->idx += OPAQUE16_LEN; - - if ((word32)check != args->length) { - WOLFSSL_MSG("RSA explicit size doesn't match"); - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, bad_record_mac); - #endif - ERROR_OUT(RSA_PRIVATE_ERROR, exit_dcke); - } - } - - if ((args->idx - args->begin) + args->length > size) { - WOLFSSL_MSG("RSA message too big"); - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - /* pre-load PreMasterSecret with RNG data */ - ret = wc_RNG_GenerateBlock(ssl->rng, - &ssl->arrays->preMasterSecret[VERSION_SZ], - SECRET_LEN - VERSION_SZ); - if (ret != 0) { - goto exit_dcke; - } - - args->output = NULL; - break; - } /* rsa_kea */ - #endif /* !NO_RSA */ - #ifndef NO_PSK - case psk_kea: - { - byte* pms = ssl->arrays->preMasterSecret; - word16 ci_sz; - - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - ato16(input + args->idx, &ci_sz); - args->idx += OPAQUE16_LEN; - - if (ci_sz > MAX_PSK_ID_LEN) { - ERROR_OUT(CLIENT_ID_ERROR, exit_dcke); - } - - if ((args->idx - args->begin) + ci_sz > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - XMEMCPY(ssl->arrays->client_identity, - input + args->idx, ci_sz); - args->idx += ci_sz; - - ssl->arrays->client_identity[ci_sz] = '\0'; /* null term */ - ssl->arrays->psk_keySz = ssl->options.server_psk_cb(ssl, - ssl->arrays->client_identity, ssl->arrays->psk_key, - MAX_PSK_KEY_LEN); - - if (ssl->arrays->psk_keySz == 0 || - ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN) { - ERROR_OUT(PSK_KEY_ERROR, exit_dcke); - } - - /* make psk pre master secret */ - /* length of key + length 0s + length of key + key */ - c16toa((word16) ssl->arrays->psk_keySz, pms); - pms += OPAQUE16_LEN; - - XMEMSET(pms, 0, ssl->arrays->psk_keySz); - pms += ssl->arrays->psk_keySz; - - c16toa((word16) ssl->arrays->psk_keySz, pms); - pms += OPAQUE16_LEN; - - XMEMCPY(pms, ssl->arrays->psk_key, ssl->arrays->psk_keySz); - ssl->arrays->preMasterSz = - (ssl->arrays->psk_keySz * 2) + (OPAQUE16_LEN * 2); - break; - } - #endif /* !NO_PSK */ - #ifdef HAVE_NTRU - case ntru_kea: - { - word16 cipherLen; - word16 plainLen = ENCRYPT_LEN; - - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - ato16(input + args->idx, &cipherLen); - args->idx += OPAQUE16_LEN; - - if (cipherLen > MAX_NTRU_ENCRYPT_SZ) { - ERROR_OUT(NTRU_KEY_ERROR, exit_dcke); - } - - if ((args->idx - args->begin) + cipherLen > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - if (NTRU_OK != ntru_crypto_ntru_decrypt( - (word16) ssl->buffers.key->length, - ssl->buffers.key->buffer, cipherLen, - input + args->idx, &plainLen, - ssl->arrays->preMasterSecret)) { - ERROR_OUT(NTRU_DECRYPT_ERROR, exit_dcke); - } - - if (plainLen != SECRET_LEN) { - ERROR_OUT(NTRU_DECRYPT_ERROR, exit_dcke); - } - - args->idx += cipherLen; - ssl->arrays->preMasterSz = plainLen; - break; - } - #endif /* HAVE_NTRU */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - #ifdef HAVE_ECC - ecc_key* private_key = ssl->eccTempKey; - - /* handle static private key */ - if (ssl->specs.static_ecdh && - ssl->ecdhCurveOID != ECC_X25519_OID && - ssl->ecdhCurveOID != ECC_X448_OID) { - word16 keySz; - - ssl->buffers.keyType = ecc_dsa_sa_algo; - ret = DecodePrivateKey(ssl, &keySz); - if (ret != 0) { - goto exit_dcke; - } - private_key = (ecc_key*)ssl->hsKey; - } - #endif - - /* import peer ECC key */ - if ((args->idx - args->begin) + OPAQUE8_LEN > size) { - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, decode_error); - #endif - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - args->length = input[args->idx++]; - - if ((args->idx - args->begin) + args->length > size) { - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, decode_error); - #endif - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X25519SharedSecretCb != NULL) { - break; - } - #endif - if (ssl->peerX25519Key == NULL) { - /* alloc/init on demand */ - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE25519, - (void**)&ssl->peerX25519Key); - if (ret != 0) { - goto exit_dcke; - } - } else if (ssl->peerX25519KeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_CURVE25519, - ssl->peerX25519Key); - ssl->peerX25519KeyPresent = 0; - if (ret != 0) { - goto exit_dcke; - } - } - - if ((ret = wc_curve25519_check_public( - input + args->idx, args->length, - EC25519_LITTLE_ENDIAN)) != 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_E) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret == ECC_OUT_OF_RANGE_E) - SendAlert(ssl, alert_fatal, bad_record_mac); - else { - SendAlert(ssl, alert_fatal, - illegal_parameter); - } - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - if (wc_curve25519_import_public_ex( - input + args->idx, args->length, - ssl->peerX25519Key, - EC25519_LITTLE_ENDIAN)) { - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, illegal_parameter); - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - ssl->arrays->preMasterSz = CURVE25519_KEYSIZE; - - ssl->peerX25519KeyPresent = 1; - - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X448SharedSecretCb != NULL) { - break; - } - #endif - if (ssl->peerX448Key == NULL) { - /* alloc/init on demand */ - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE448, - (void**)&ssl->peerX448Key); - if (ret != 0) { - goto exit_dcke; - } - } else if (ssl->peerX448KeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_CURVE448, - ssl->peerX448Key); - ssl->peerX448KeyPresent = 0; - if (ret != 0) { - goto exit_dcke; - } - } - - if ((ret = wc_curve448_check_public( - input + args->idx, args->length, - EC448_LITTLE_ENDIAN)) != 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_E) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret == ECC_OUT_OF_RANGE_E) - SendAlert(ssl, alert_fatal, bad_record_mac); - else { - SendAlert(ssl, alert_fatal, - illegal_parameter); - } - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - if (wc_curve448_import_public_ex( - input + args->idx, args->length, - ssl->peerX448Key, - EC448_LITTLE_ENDIAN)) { - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, illegal_parameter); - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - ssl->arrays->preMasterSz = CURVE448_KEY_SIZE; - - ssl->peerX448KeyPresent = 1; - - break; - } - #endif - #ifdef HAVE_ECC - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->EccSharedSecretCb != NULL) { - break; - } - #endif - - if (!ssl->specs.static_ecdh && - ssl->eccTempKeyPresent == 0) { - WOLFSSL_MSG("Ecc ephemeral key not made correctly"); - ERROR_OUT(ECC_MAKEKEY_ERROR, exit_dcke); - } - - if (ssl->peerEccKey == NULL) { - /* alloc/init on demand */ - ret = AllocKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccKey); - if (ret != 0) { - goto exit_dcke; - } - } else if (ssl->peerEccKeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_ECC, - ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; - if (ret != 0) { - goto exit_dcke; - } - } - - if (wc_ecc_import_x963_ex(input + args->idx, - args->length, ssl->peerEccKey, - private_key->dp->id)) { - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, illegal_parameter); - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - ssl->arrays->preMasterSz = private_key->dp->size; - - ssl->peerEccKeyPresent = 1; - #endif /* HAVE_ECC */ - - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - #ifndef NO_DH - case diffie_hellman_kea: - { - word16 clientPubSz; - - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - ato16(input + args->idx, &clientPubSz); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + clientPubSz > size) { - #ifdef WOLFSSL_EXTRA_ALERTS - SendAlert(ssl, alert_fatal, decode_error); - #endif - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - args->sigSz = clientPubSz; - - ret = AllocKey(ssl, DYNAMIC_TYPE_DH, - (void**)&ssl->buffers.serverDH_Key); - if (ret != 0) { - goto exit_dcke; - } - - ret = wc_DhSetKey(ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length); - - /* set the max agree result size */ - ssl->arrays->preMasterSz = ENCRYPT_LEN; - break; - } - #endif /* !NO_DH */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - word16 clientSz; - - /* Read in the PSK hint */ - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - ato16(input + args->idx, &clientSz); - args->idx += OPAQUE16_LEN; - if (clientSz > MAX_PSK_ID_LEN) { - ERROR_OUT(CLIENT_ID_ERROR, exit_dcke); - } - - if ((args->idx - args->begin) + clientSz > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - XMEMCPY(ssl->arrays->client_identity, input + args->idx, - clientSz); - args->idx += clientSz; - ssl->arrays->client_identity[clientSz] = '\0'; /* null term */ - - /* Read in the DHE business */ - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - ato16(input + args->idx, &clientSz); - args->idx += OPAQUE16_LEN; - - if ((args->idx - args->begin) + clientSz > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - args->sigSz = clientSz; - - ret = AllocKey(ssl, DYNAMIC_TYPE_DH, - (void**)&ssl->buffers.serverDH_Key); - if (ret != 0) { - goto exit_dcke; - } - - ret = wc_DhSetKey(ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_P.buffer, - ssl->buffers.serverDH_P.length, - ssl->buffers.serverDH_G.buffer, - ssl->buffers.serverDH_G.length); - - break; - } - #endif /* !NO_DH && !NO_PSK */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - word16 clientSz; - - /* Read in the PSK hint */ - if ((args->idx - args->begin) + OPAQUE16_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - ato16(input + args->idx, &clientSz); - args->idx += OPAQUE16_LEN; - if (clientSz > MAX_PSK_ID_LEN) { - ERROR_OUT(CLIENT_ID_ERROR, exit_dcke); - } - if ((args->idx - args->begin) + clientSz > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - XMEMCPY(ssl->arrays->client_identity, - input + args->idx, clientSz); - args->idx += clientSz; - ssl->arrays->client_identity[clientSz] = '\0'; /* null term */ - - /* import peer ECC key */ - if ((args->idx - args->begin) + OPAQUE8_LEN > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - args->length = input[args->idx++]; - - if ((args->idx - args->begin) + args->length > size) { - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - - args->sigSz = ENCRYPT_LEN - OPAQUE16_LEN; - - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X25519SharedSecretCb != NULL) { - break; - } - #endif - - if (ssl->eccTempKeyPresent == 0) { - WOLFSSL_MSG( - "X25519 ephemeral key not made correctly"); - ERROR_OUT(ECC_MAKEKEY_ERROR, exit_dcke); - } - - if (ssl->peerX25519Key == NULL) { - /* alloc/init on demand */ - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE25519, - (void**)&ssl->peerX25519Key); - if (ret != 0) { - goto exit_dcke; - } - } else if (ssl->peerX25519KeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_CURVE25519, - ssl->peerX25519Key); - ssl->peerX25519KeyPresent = 0; - if (ret != 0) { - goto exit_dcke; - } - } - - if ((ret = wc_curve25519_check_public( - input + args->idx, args->length, - EC25519_LITTLE_ENDIAN)) != 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_E) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret == ECC_OUT_OF_RANGE_E) - SendAlert(ssl, alert_fatal, bad_record_mac); - else { - SendAlert(ssl, alert_fatal, - illegal_parameter); - } - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - if (wc_curve25519_import_public_ex( - input + args->idx, args->length, - ssl->peerX25519Key, - EC25519_LITTLE_ENDIAN)) { - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - ssl->peerX25519KeyPresent = 1; - - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->X448SharedSecretCb != NULL) { - break; - } - #endif - - if (ssl->eccTempKeyPresent == 0) { - WOLFSSL_MSG( - "X448 ephemeral key not made correctly"); - ERROR_OUT(ECC_MAKEKEY_ERROR, exit_dcke); - } - - if (ssl->peerX448Key == NULL) { - /* alloc/init on demand */ - ret = AllocKey(ssl, DYNAMIC_TYPE_CURVE448, - (void**)&ssl->peerX448Key); - if (ret != 0) { - goto exit_dcke; - } - } else if (ssl->peerX448KeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_CURVE448, - ssl->peerX448Key); - ssl->peerX448KeyPresent = 0; - if (ret != 0) { - goto exit_dcke; - } - } - - if ((ret = wc_curve448_check_public( - input + args->idx, args->length, - EC448_LITTLE_ENDIAN)) != 0) { - #ifdef WOLFSSL_EXTRA_ALERTS - if (ret == BUFFER_E) - SendAlert(ssl, alert_fatal, decode_error); - else if (ret == ECC_OUT_OF_RANGE_E) - SendAlert(ssl, alert_fatal, bad_record_mac); - else { - SendAlert(ssl, alert_fatal, - illegal_parameter); - } - #endif - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - if (wc_curve448_import_public_ex( - input + args->idx, args->length, - ssl->peerX448Key, - EC448_LITTLE_ENDIAN)) { - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - ssl->peerX448KeyPresent = 1; - - break; - } - #endif - #ifdef HAVE_PK_CALLBACKS - /* if callback then use it for shared secret */ - if (ssl->ctx->EccSharedSecretCb != NULL) { - break; - } - #endif - - if (ssl->eccTempKeyPresent == 0) { - WOLFSSL_MSG("Ecc ephemeral key not made correctly"); - ERROR_OUT(ECC_MAKEKEY_ERROR, exit_dcke); - } - - if (ssl->peerEccKey == NULL) { - /* alloc/init on demand */ - ret = AllocKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccKey); - if (ret != 0) { - goto exit_dcke; - } - } - else if (ssl->peerEccKeyPresent) { - ret = ReuseKey(ssl, DYNAMIC_TYPE_ECC, - ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; - if (ret != 0) { - goto exit_dcke; - } - } - if (wc_ecc_import_x963_ex(input + args->idx, - args->length, ssl->peerEccKey, - ssl->eccTempKey->dp->id)) { - ERROR_OUT(ECC_PEERKEY_ERROR, exit_dcke); - } - - ssl->peerEccKeyPresent = 1; - break; - } - #endif /* (HAVE_ECC || CURVE25519 || CURVE448) && !NO_PSK */ - default: - ret = BAD_KEA_TYPE_E; - } /* switch (ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_dcke; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_DO; - } /* TLS_ASYNC_BUILD */ - FALL_THROUGH; - - case TLS_ASYNC_DO: - { - switch (ssl->specs.kea) { - #ifndef NO_RSA - case rsa_kea: - { - RsaKey* key = (RsaKey*)ssl->hsKey; - - ret = RsaDec(ssl, - input + args->idx, - args->length, - &args->output, - &args->sigSz, - key, - #ifdef HAVE_PK_CALLBACKS - ssl->buffers.key - #else - NULL - #endif - ); - - /* Errors that can occur here that should be - * indistinguishable: - * RSA_BUFFER_E, RSA_PAD_E and RSA_PRIVATE_ERROR - */ - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret == WC_PENDING_E) - goto exit_dcke; - #endif - if (ret == BAD_FUNC_ARG) - goto exit_dcke; - - args->lastErr = ret - (SECRET_LEN - args->sigSz); - ret = 0; - break; - } /* rsa_kea */ - #endif /* !NO_RSA */ - #ifndef NO_PSK - case psk_kea: - { - break; - } - #endif /* !NO_PSK */ - #ifdef HAVE_NTRU - case ntru_kea: - { - break; - } - #endif /* HAVE_NTRU */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - void* private_key = ssl->eccTempKey; - (void)private_key; - - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - ret = X25519SharedSecret(ssl, - (curve25519_key*)private_key, - ssl->peerX25519Key, - input + args->idx, &args->length, - ssl->arrays->preMasterSecret, - &ssl->arrays->preMasterSz, - WOLFSSL_SERVER_END - ); - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - ret = X448SharedSecret(ssl, - (curve448_key*)private_key, - ssl->peerX448Key, - input + args->idx, &args->length, - ssl->arrays->preMasterSecret, - &ssl->arrays->preMasterSz, - WOLFSSL_SERVER_END - ); - break; - } - #endif - #ifdef HAVE_ECC - if (ssl->specs.static_ecdh) { - private_key = ssl->hsKey; - } - - /* Generate shared secret */ - ret = EccSharedSecret(ssl, - (ecc_key*)private_key, ssl->peerEccKey, - input + args->idx, &args->length, - ssl->arrays->preMasterSecret, - &ssl->arrays->preMasterSz, - WOLFSSL_SERVER_END - ); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret != WC_PENDING_E) - #endif - { - FreeKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; - } - #endif - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - #ifndef NO_DH - case diffie_hellman_kea: - { - ret = DhAgree(ssl, ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_Priv.buffer, - ssl->buffers.serverDH_Priv.length, - input + args->idx, - (word16)args->sigSz, - ssl->arrays->preMasterSecret, - &ssl->arrays->preMasterSz); - break; - } - #endif /* !NO_DH */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - ret = DhAgree(ssl, ssl->buffers.serverDH_Key, - ssl->buffers.serverDH_Priv.buffer, - ssl->buffers.serverDH_Priv.length, - input + args->idx, - (word16)args->sigSz, - ssl->arrays->preMasterSecret + OPAQUE16_LEN, - &ssl->arrays->preMasterSz); - break; - } - #endif /* !NO_DH && !NO_PSK */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - #ifdef HAVE_CURVE25519 - if (ssl->ecdhCurveOID == ECC_X25519_OID) { - ret = X25519SharedSecret(ssl, - (curve25519_key*)ssl->eccTempKey, - ssl->peerX25519Key, - input + args->idx, &args->length, - ssl->arrays->preMasterSecret + OPAQUE16_LEN, - &args->sigSz, - WOLFSSL_SERVER_END - ); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret != WC_PENDING_E) - #endif - { - FreeKey(ssl, DYNAMIC_TYPE_CURVE25519, - (void**)&ssl->peerX25519Key); - ssl->peerX25519KeyPresent = 0; - } - break; - } - #endif - #ifdef HAVE_CURVE448 - if (ssl->ecdhCurveOID == ECC_X448_OID) { - ret = X448SharedSecret(ssl, - (curve448_key*)ssl->eccTempKey, - ssl->peerX448Key, - input + args->idx, &args->length, - ssl->arrays->preMasterSecret + OPAQUE16_LEN, - &args->sigSz, - WOLFSSL_SERVER_END - ); - #ifdef WOLFSSL_ASYNC_CRYPT - if (ret != WC_PENDING_E) - #endif - { - FreeKey(ssl, DYNAMIC_TYPE_CURVE448, - (void**)&ssl->peerX448Key); - ssl->peerX448KeyPresent = 0; - } - break; - } - #endif - /* Generate shared secret */ - ret = EccSharedSecret(ssl, - ssl->eccTempKey, ssl->peerEccKey, - input + args->idx, &args->length, - ssl->arrays->preMasterSecret + OPAQUE16_LEN, - &args->sigSz, - WOLFSSL_SERVER_END - ); - if (!ssl->specs.static_ecdh - #ifdef WOLFSSL_ASYNC_CRYPT - && ret != WC_PENDING_E - #endif - ) { - FreeKey(ssl, DYNAMIC_TYPE_ECC, - (void**)&ssl->peerEccKey); - ssl->peerEccKeyPresent = 0; - } - break; - } - #endif /* (HAVE_ECC || CURVE25519 || CURVE448) && !NO_PSK */ - default: - ret = BAD_KEA_TYPE_E; - } /* switch (ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_dcke; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_VERIFY; - } /* TLS_ASYNC_DO */ - FALL_THROUGH; - - case TLS_ASYNC_VERIFY: - { - switch (ssl->specs.kea) { - #ifndef NO_RSA - case rsa_kea: - { - byte mask; - int i; - - /* Add the signature length to idx */ - args->idx += args->length; - - #ifdef DEBUG_WOLFSSL - /* check version (debug warning message only) */ - if (args->output != NULL) { - if (args->output[0] != ssl->chVersion.major || - args->output[1] != ssl->chVersion.minor) { - WOLFSSL_MSG("preMasterSecret version mismatch"); - } - } - #endif - - /* RFC5246 7.4.7.1: - * Treat incorrectly formatted message blocks and/or - * mismatched version numbers in a manner - * indistinguishable from correctly formatted RSA blocks - */ - - ret = args->lastErr; - args->lastErr = 0; /* reset */ - /* On error 'ret' will be negative - top bit set */ - mask = ((unsigned int)ret >> - ((sizeof(ret) * 8) - 1)) - 1; - - /* build PreMasterSecret */ - ssl->arrays->preMasterSecret[0] = ssl->chVersion.major; - ssl->arrays->preMasterSecret[1] = ssl->chVersion.minor; - - if (args->output != NULL) { - /* Use random secret on error */ - for (i = VERSION_SZ; i < SECRET_LEN; i++) { - ssl->arrays->preMasterSecret[i] = - ctMaskSel(mask, args->output[i], - ssl->arrays->preMasterSecret[i]); - } - } - /* preMasterSecret has RNG and version set - * return proper length and ignore error - * error will be caught as decryption error - */ - args->sigSz = SECRET_LEN; - ret = 0; - break; - } /* rsa_kea */ - #endif /* !NO_RSA */ - #ifndef NO_PSK - case psk_kea: - { - break; - } - #endif /* !NO_PSK */ - #ifdef HAVE_NTRU - case ntru_kea: - { - break; - } - #endif /* HAVE_NTRU */ - #if defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448) - case ecc_diffie_hellman_kea: - { - /* skip past the imported peer key */ - args->idx += args->length; - break; - } - #endif /* HAVE_ECC || HAVE_CURVE25519 || HAVE_CURVE448 */ - #ifndef NO_DH - case diffie_hellman_kea: - { - args->idx += (word16)args->sigSz; - break; - } - #endif /* !NO_DH */ - #if !defined(NO_DH) && !defined(NO_PSK) - case dhe_psk_kea: - { - byte* pms = ssl->arrays->preMasterSecret; - word16 clientSz = (word16)args->sigSz; - - args->idx += clientSz; - c16toa((word16)ssl->arrays->preMasterSz, pms); - ssl->arrays->preMasterSz += OPAQUE16_LEN; - pms += ssl->arrays->preMasterSz; - - /* Use the PSK hint to look up the PSK and add it to the - * preMasterSecret here. */ - ssl->arrays->psk_keySz = ssl->options.server_psk_cb(ssl, - ssl->arrays->client_identity, ssl->arrays->psk_key, - MAX_PSK_KEY_LEN); - - if (ssl->arrays->psk_keySz == 0 || - ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN) { - ERROR_OUT(PSK_KEY_ERROR, exit_dcke); - } - - c16toa((word16) ssl->arrays->psk_keySz, pms); - pms += OPAQUE16_LEN; - - XMEMCPY(pms, ssl->arrays->psk_key, - ssl->arrays->psk_keySz); - ssl->arrays->preMasterSz += ssl->arrays->psk_keySz + - OPAQUE16_LEN; - break; - } - #endif /* !NO_DH && !NO_PSK */ - #if (defined(HAVE_ECC) || defined(HAVE_CURVE25519) || \ - defined(HAVE_CURVE448)) && !defined(NO_PSK) - case ecdhe_psk_kea: - { - byte* pms = ssl->arrays->preMasterSecret; - word16 clientSz = (word16)args->sigSz; - - /* skip past the imported peer key */ - args->idx += args->length; - - /* Add preMasterSecret */ - c16toa(clientSz, pms); - ssl->arrays->preMasterSz = OPAQUE16_LEN + clientSz; - pms += ssl->arrays->preMasterSz; - - /* Use the PSK hint to look up the PSK and add it to the - * preMasterSecret here. */ - ssl->arrays->psk_keySz = ssl->options.server_psk_cb(ssl, - ssl->arrays->client_identity, ssl->arrays->psk_key, - MAX_PSK_KEY_LEN); - - if (ssl->arrays->psk_keySz == 0 || - ssl->arrays->psk_keySz > MAX_PSK_KEY_LEN) { - ERROR_OUT(PSK_KEY_ERROR, exit_dcke); - } - - c16toa((word16) ssl->arrays->psk_keySz, pms); - pms += OPAQUE16_LEN; - - XMEMCPY(pms, ssl->arrays->psk_key, ssl->arrays->psk_keySz); - ssl->arrays->preMasterSz += - ssl->arrays->psk_keySz + OPAQUE16_LEN; - break; - } - #endif /* (HAVE_ECC || CURVE25519 || CURVE448) && !NO_PSK */ - default: - ret = BAD_KEA_TYPE_E; - } /* switch (ssl->specs.kea) */ - - /* Check for error */ - if (ret != 0) { - goto exit_dcke; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_FINALIZE; - } /* TLS_ASYNC_VERIFY */ - FALL_THROUGH; - - case TLS_ASYNC_FINALIZE: - { - if (IsEncryptionOn(ssl, 0)) { - args->idx += ssl->keys.padSz; - #if defined(HAVE_ENCRYPT_THEN_MAC) && !defined(WOLFSSL_AEAD_ONLY) - if (ssl->options.startedETMRead) - args->idx += MacSize(ssl); - #endif - } - - #ifdef HAVE_QSH - word16 name; - - if (ssl->options.haveQSH) { - /* extension name */ - ato16(input + args->idx, &name); - args->idx += OPAQUE16_LEN; - - if (name == TLSX_QUANTUM_SAFE_HYBRID) { - int qshSz; - /* if qshSz is larger than 0 it is the - length of buffer used */ - if ((qshSz = TLSX_QSHCipher_Parse(ssl, - input + args->idx, - size - args->idx + args->begin, 1)) < 0) { - ERROR_OUT(qshSz, exit_dcke); - } - args->idx += qshSz; - } - else { - /* unknown extension sent client ignored handshake */ - ERROR_OUT(BUFFER_ERROR, exit_dcke); - } - } - #endif /* HAVE_QSH */ - ret = MakeMasterSecret(ssl); - - /* Check for error */ - if (ret != 0) { - goto exit_dcke; - } - - /* Advance state and proceed */ - ssl->options.asyncState = TLS_ASYNC_END; - } /* TLS_ASYNC_FINALIZE */ - FALL_THROUGH; - - case TLS_ASYNC_END: - { - /* Set final index */ - *inOutIdx = args->idx; - - ssl->options.clientState = CLIENT_KEYEXCHANGE_COMPLETE; - #ifndef NO_CERTS - if (ssl->options.verifyPeer) { - ret = BuildCertHashes(ssl, &ssl->hsHashes->certHashes); - } - #endif - break; - } /* TLS_ASYNC_END */ - default: - ret = INPUT_CASE_ERROR; - } /* switch(ssl->options.asyncState) */ - - exit_dcke: - - WOLFSSL_LEAVE("DoClientKeyExchange", ret); - WOLFSSL_END(WC_FUNC_CLIENT_KEY_EXCHANGE_DO); - - #ifdef WOLFSSL_ASYNC_CRYPT - /* Handle async operation */ - if (ret == WC_PENDING_E) { - /* Mark message as not received so it can process again */ - ssl->msgsReceived.got_client_key_exchange = 0; - - return ret; - } - #endif /* WOLFSSL_ASYNC_CRYPT */ - - /* Cleanup PMS */ - if (ssl->arrays->preMasterSecret != NULL) { - ForceZero(ssl->arrays->preMasterSecret, ssl->arrays->preMasterSz); - } - ssl->arrays->preMasterSz = 0; - - /* Final cleanup */ - FreeDckeArgs(ssl, args); - FreeKeyExchange(ssl); - - return ret; - } - -#endif /* !WOLFSSL_NO_TLS12 */ - -#if defined(OPENSSL_ALL) || defined(HAVE_STUNNEL) || defined(WOLFSSL_NGINX) || \ - defined(WOLFSSL_HAPROXY) - int SNI_Callback(WOLFSSL* ssl) - { - /* Stunnel supports a custom sni callback to switch an SSL's ctx - * when SNI is received. Call it now if exists */ - if(ssl && ssl->ctx && ssl->ctx->sniRecvCb) { - WOLFSSL_MSG("Calling custom sni callback"); - if(ssl->ctx->sniRecvCb(ssl, NULL, ssl->ctx->sniRecvCbArg) - == alert_fatal) { - WOLFSSL_MSG("Error in custom sni callback. Fatal alert"); - SendAlert(ssl, alert_fatal, unrecognized_name); - return FATAL_ERROR; - } - } - return 0; - } -#endif /* OPENSSL_ALL || HAVE_STUNNEL || WOLFSSL_NGINX || WOLFSSL_HAPROXY */ - -#endif /* NO_WOLFSSL_SERVER */ - - -#ifdef WOLFSSL_ASYNC_CRYPT -int wolfSSL_AsyncPop(WOLFSSL* ssl, byte* state) -{ - int ret = 0; - WC_ASYNC_DEV* asyncDev; - WOLF_EVENT* event; - - if (ssl == NULL) { - return BAD_FUNC_ARG; - } - - /* check for pending async */ - asyncDev = ssl->async.dev; - if (asyncDev) { - /* grab event pointer */ - event = &asyncDev->event; - - ret = wolfAsync_EventPop(event, WOLF_EVENT_TYPE_ASYNC_WOLFSSL); - if (ret != WC_NOT_PENDING_E && ret != WC_PENDING_E) { - - /* advance key share state if doesn't need called again */ - if (state && (asyncDev->event.flags & WC_ASYNC_FLAG_CALL_AGAIN) == 0) { - (*state)++; - } - - /* clear event */ - XMEMSET(&asyncDev->event, 0, sizeof(WOLF_EVENT)); - - /* clear async dev */ - ssl->async.dev = NULL; - } - } - else { - ret = WC_NOT_PENDING_E; - } - - WOLFSSL_LEAVE("wolfSSL_AsyncPop", ret); - - return ret; -} - -int wolfSSL_AsyncInit(WOLFSSL* ssl, WC_ASYNC_DEV* asyncDev, word32 flags) -{ - int ret; - WOLF_EVENT* event; - - if (ssl == NULL || asyncDev == NULL) { - return BAD_FUNC_ARG; - } - - /* grab event pointer */ - event = &asyncDev->event; - - /* init event */ - ret = wolfAsync_EventInit(event, WOLF_EVENT_TYPE_ASYNC_WOLFSSL, ssl, flags); - - WOLFSSL_LEAVE("wolfSSL_AsyncInit", ret); - - return ret; -} - -int wolfSSL_AsyncPush(WOLFSSL* ssl, WC_ASYNC_DEV* asyncDev) -{ - int ret; - WOLF_EVENT* event; - - if (ssl == NULL || asyncDev == NULL) { - return BAD_FUNC_ARG; - } - - /* grab event pointer */ - event = &asyncDev->event; - - /* store reference to active async operation */ - ssl->async.dev = asyncDev; - - /* place event into queue */ - ret = wolfAsync_EventQueuePush(&ssl->ctx->event_queue, event); - - /* success means return WC_PENDING_E */ - if (ret == 0) { - ret = WC_PENDING_E; - } - - WOLFSSL_LEAVE("wolfSSL_AsyncPush", ret); - - return ret; -} - -#endif /* WOLFSSL_ASYNC_CRYPT */ - - -/* return the max record size */ -int wolfSSL_GetMaxRecordSize(WOLFSSL* ssl, int maxFragment) -{ - (void) ssl; /* Avoid compiler warnings */ - - if (maxFragment > MAX_RECORD_SIZE) { - maxFragment = MAX_RECORD_SIZE; - } - -#ifdef HAVE_MAX_FRAGMENT - if ((ssl->max_fragment != 0) && ((word16)maxFragment > ssl->max_fragment)) { - maxFragment = ssl->max_fragment; - } -#endif /* HAVE_MAX_FRAGMENT */ -#ifdef WOLFSSL_DTLS - if ((ssl->options.dtls) && (maxFragment > MAX_UDP_SIZE)) { - maxFragment = MAX_UDP_SIZE; - } -#endif - - return maxFragment; -} - - -#undef ERROR_OUT - -#endif /* WOLFCRYPT_ONLY */ |