diff options
Diffstat (limited to 'src/init.cpp')
| -rw-r--r-- | src/init.cpp | 2054 |
1 files changed, 1277 insertions, 777 deletions
diff --git a/src/init.cpp b/src/init.cpp index 11329c16a..b28baba77 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -1,75 +1,94 @@ // Copyright (c) 2009-2010 Satoshi Nakamoto -// Copyright (c) 2009-2014 The Bitcoin developers +// Copyright (c) 2009-2017 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #if defined(HAVE_CONFIG_H) -#include "config/bitcoin-config.h" +#include <config/bitcoin-config.h> #endif -#include "init.h" - -#include "addrman.h" -#include "amount.h" -#include "checkpoints.h" -#include "compat/sanity.h" -#include "key.h" -#include "main.h" -#include "miner.h" -#include "net.h" -#include "rpcserver.h" -#include "script/standard.h" -#include "txdb.h" -#include "ui_interface.h" -#include "util.h" -#include "utilmoneystr.h" +#include <init.h> + +#include <addrman.h> +#include <amount.h> +#include <chain.h> +#include <chainparams.h> +#include <checkpoints.h> +#include <compat/sanity.h> +#include <consensus/validation.h> +#include <fs.h> +#include <httpserver.h> +#include <httprpc.h> +#include <key.h> +#include <validation.h> +#include <miner.h> +#include <netbase.h> +#include <net.h> +#include <net_processing.h> +#include <policy/feerate.h> +#include <policy/fees.h> +#include <policy/policy.h> +#include <rpc/server.h> +#include <rpc/register.h> +#include <rpc/safemode.h> +#include <rpc/blockchain.h> +#include <script/standard.h> +#include <script/sigcache.h> +#include <scheduler.h> +#include <timedata.h> +#include <txdb.h> +#include <txmempool.h> +#include <torcontrol.h> +#include <ui_interface.h> +#include <util.h> +#include <utilmoneystr.h> +#include <validationinterface.h> #ifdef ENABLE_WALLET -#include "db.h" -#include "wallet.h" -#include "walletdb.h" +#include <wallet/init.h> #endif - +#include <warnings.h> #include <stdint.h> #include <stdio.h> +#include <memory> #ifndef WIN32 #include <signal.h> #endif -#include <boost/algorithm/string/predicate.hpp> +#include <boost/algorithm/string/classification.hpp> #include <boost/algorithm/string/replace.hpp> -#include <boost/filesystem.hpp> +#include <boost/algorithm/string/split.hpp> +#include <boost/bind.hpp> #include <boost/interprocess/sync/file_lock.hpp> #include <boost/thread.hpp> #include <openssl/crypto.h> -using namespace boost; -using namespace std; - -#ifdef ENABLE_WALLET -CWallet* pwalletMain = NULL; +#if ENABLE_ZMQ +#include <zmq/zmqnotificationinterface.h> #endif + bool fFeeEstimatesInitialized = false; +static const bool DEFAULT_PROXYRANDOMIZE = true; +static const bool DEFAULT_REST_ENABLE = false; +static const bool DEFAULT_STOPAFTERBLOCKIMPORT = false; + +std::unique_ptr<CConnman> g_connman; +std::unique_ptr<PeerLogicValidation> peerLogic; + +#if ENABLE_ZMQ +static CZMQNotificationInterface* pzmqNotificationInterface = nullptr; +#endif #ifdef WIN32 // Win32 LevelDB doesn't use filedescriptors, and the ones used for -// accessing block files, don't count towards to fd_set size limit +// accessing block files don't count towards the fd_set size limit // anyway. #define MIN_CORE_FILEDESCRIPTORS 0 #else #define MIN_CORE_FILEDESCRIPTORS 150 #endif -/** Used to pass flags to the Bind() function */ -enum BindFlags { - BF_NONE = 0, - BF_EXPLICIT = (1U << 0), - BF_REPORT_ERROR = (1U << 1), - BF_WHITELIST = (1U << 2), -}; - static const char* FEE_ESTIMATES_FILENAME="fee_estimates.dat"; -CClientUIInterface uiInterface; ////////////////////////////////////////////////////////////////////////////// // @@ -83,25 +102,21 @@ CClientUIInterface uiInterface; // created by AppInit() or the Qt main() function. // // A clean exit happens when StartShutdown() or the SIGTERM -// signal handler sets fRequestShutdown, which triggers -// the DetectShutdownThread(), which interrupts the main thread group. -// DetectShutdownThread() then exits, which causes AppInit() to -// continue (it .joins the shutdown thread). -// Shutdown() is then -// called to clean up database connections, and stop other +// signal handler sets fRequestShutdown, which makes main thread's +// WaitForShutdown() interrupts the thread group. +// And then, WaitForShutdown() makes all other on-going threads +// in the thread group join the main thread. +// Shutdown() is then called to clean up database connections, and stop other // threads that should only be stopped after the main network-processing // threads have exited. // -// Note that if running -daemon the parent process returns from AppInit2 -// before adding any threads to the threadGroup, so .join_all() returns -// immediately and the parent exits from main(). -// // Shutdown for Qt is very similar, only it uses a QTimer to detect // fRequestShutdown getting set, and then does the normal Qt // shutdown thing. // -volatile bool fRequestShutdown = false; +std::atomic<bool> fRequestShutdown(false); +std::atomic<bool> fDumpMempoolLater(false); void StartShutdown() { @@ -112,7 +127,48 @@ bool ShutdownRequested() return fRequestShutdown; } -static CCoinsViewDB *pcoinsdbview = NULL; +/** + * This is a minimally invasive approach to shutdown on LevelDB read errors from the + * chainstate, while keeping user interface out of the common library, which is shared + * between bitcoind, and bitcoin-qt and non-server tools. +*/ +class CCoinsViewErrorCatcher final : public CCoinsViewBacked +{ +public: + explicit CCoinsViewErrorCatcher(CCoinsView* view) : CCoinsViewBacked(view) {} + bool GetCoin(const COutPoint &outpoint, Coin &coin) const override { + try { + return CCoinsViewBacked::GetCoin(outpoint, coin); + } catch(const std::runtime_error& e) { + uiInterface.ThreadSafeMessageBox(_("Error reading from database, shutting down."), "", CClientUIInterface::MSG_ERROR); + LogPrintf("Error reading from database: %s\n", e.what()); + // Starting the shutdown sequence and returning false to the caller would be + // interpreted as 'entry not found' (as opposed to unable to read data), and + // could lead to invalid interpretation. Just exit immediately, as we can't + // continue anyway, and all writes should be atomic. + abort(); + } + } + // Writes do not need similar protection, as failure to write is handled by the caller. +}; + +static std::unique_ptr<CCoinsViewErrorCatcher> pcoinscatcher; +static std::unique_ptr<ECCVerifyHandle> globalVerifyHandle; + +static boost::thread_group threadGroup; +static CScheduler scheduler; + +void Interrupt() +{ + InterruptHTTPServer(); + InterruptHTTPRPC(); + InterruptRPC(); + InterruptREST(); + InterruptTorControl(); + InterruptMapPort(); + if (g_connman) + g_connman->Interrupt(); +} void Shutdown() { @@ -122,269 +178,392 @@ void Shutdown() if (!lockShutdown) return; - /// Note: Shutdown() must be able to handle cases in which AppInit2() failed part of the way, + /// Note: Shutdown() must be able to handle cases in which initialization failed part of the way, /// for example if the data directory was found to be locked. /// Be sure that anything that writes files or flushes caches only does this if the respective /// module was initialized. RenameThread("bitcoin-shutoff"); mempool.AddTransactionsUpdated(1); - StopRPCThreads(); + + StopHTTPRPC(); + StopREST(); + StopRPC(); + StopHTTPServer(); #ifdef ENABLE_WALLET - if (pwalletMain) - bitdb.Flush(false); - GenerateBitcoins(false, NULL, 0); + FlushWallets(); #endif - StopNode(); - UnregisterNodeSignals(GetNodeSignals()); + StopMapPort(); + + // Because these depend on each-other, we make sure that neither can be + // using the other before destroying them. + if (peerLogic) UnregisterValidationInterface(peerLogic.get()); + if (g_connman) g_connman->Stop(); + peerLogic.reset(); + g_connman.reset(); + + StopTorControl(); + + // After everything has been shut down, but before things get flushed, stop the + // CScheduler/checkqueue threadGroup + threadGroup.interrupt_all(); + threadGroup.join_all(); + + if (fDumpMempoolLater && gArgs.GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) { + DumpMempool(); + } if (fFeeEstimatesInitialized) { - boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME; - CAutoFile est_fileout(fopen(est_path.string().c_str(), "wb"), SER_DISK, CLIENT_VERSION); + ::feeEstimator.FlushUnconfirmed(); + fs::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME; + CAutoFile est_fileout(fsbridge::fopen(est_path, "wb"), SER_DISK, CLIENT_VERSION); if (!est_fileout.IsNull()) - mempool.WriteFeeEstimates(est_fileout); + ::feeEstimator.Write(est_fileout); else LogPrintf("%s: Failed to write fee estimates to %s\n", __func__, est_path.string()); fFeeEstimatesInitialized = false; } + // FlushStateToDisk generates a SetBestChain callback, which we should avoid missing + if (pcoinsTip != nullptr) { + FlushStateToDisk(); + } + + // After there are no more peers/RPC left to give us new data which may generate + // CValidationInterface callbacks, flush them... + GetMainSignals().FlushBackgroundCallbacks(); + + // Any future callbacks will be dropped. This should absolutely be safe - if + // missing a callback results in an unrecoverable situation, unclean shutdown + // would too. The only reason to do the above flushes is to let the wallet catch + // up with our current chain to avoid any strange pruning edge cases and make + // next startup faster by avoiding rescan. + { LOCK(cs_main); - if (pcoinsTip != NULL) { + if (pcoinsTip != nullptr) { FlushStateToDisk(); } - delete pcoinsTip; - pcoinsTip = NULL; - delete pcoinsdbview; - pcoinsdbview = NULL; - delete pblocktree; - pblocktree = NULL; + pcoinsTip.reset(); + pcoinscatcher.reset(); + pcoinsdbview.reset(); + pblocktree.reset(); } #ifdef ENABLE_WALLET - if (pwalletMain) - bitdb.Flush(true); + StopWallets(); +#endif + +#if ENABLE_ZMQ + if (pzmqNotificationInterface) { + UnregisterValidationInterface(pzmqNotificationInterface); + delete pzmqNotificationInterface; + pzmqNotificationInterface = nullptr; + } #endif + #ifndef WIN32 - boost::filesystem::remove(GetPidFile()); + try { + fs::remove(GetPidFile()); + } catch (const fs::filesystem_error& e) { + LogPrintf("%s: Unable to remove pidfile: %s\n", __func__, e.what()); + } #endif UnregisterAllValidationInterfaces(); + GetMainSignals().UnregisterBackgroundSignalScheduler(); + GetMainSignals().UnregisterWithMempoolSignals(mempool); #ifdef ENABLE_WALLET - delete pwalletMain; - pwalletMain = NULL; + CloseWallets(); #endif + globalVerifyHandle.reset(); + ECC_Stop(); LogPrintf("%s: done\n", __func__); } /** - * Signal handlers are very limited in what they are allowed to do, so: + * Signal handlers are very limited in what they are allowed to do. + * The execution context the handler is invoked in is not guaranteed, + * so we restrict handler operations to just touching variables: */ -void HandleSIGTERM(int) +static void HandleSIGTERM(int) { fRequestShutdown = true; } -void HandleSIGHUP(int) +static void HandleSIGHUP(int) { fReopenDebugLog = true; } -bool static InitError(const std::string &str) +#ifndef WIN32 +static void registerSignalHandler(int signal, void(*handler)(int)) { - uiInterface.ThreadSafeMessageBox(str, "", CClientUIInterface::MSG_ERROR); - return false; + struct sigaction sa; + sa.sa_handler = handler; + sigemptyset(&sa.sa_mask); + sa.sa_flags = 0; + sigaction(signal, &sa, nullptr); } +#endif -bool static InitWarning(const std::string &str) +void OnRPCStarted() { - uiInterface.ThreadSafeMessageBox(str, "", CClientUIInterface::MSG_WARNING); - return true; + uiInterface.NotifyBlockTip.connect(&RPCNotifyBlockChange); } -bool static Bind(const CService &addr, unsigned int flags) { - if (!(flags & BF_EXPLICIT) && IsLimited(addr)) - return false; - std::string strError; - if (!BindListenPort(addr, strError, (flags & BF_WHITELIST) != 0)) { - if (flags & BF_REPORT_ERROR) - return InitError(strError); - return false; - } - return true; +void OnRPCStopped() +{ + uiInterface.NotifyBlockTip.disconnect(&RPCNotifyBlockChange); + RPCNotifyBlockChange(false, nullptr); + cvBlockChange.notify_all(); + LogPrint(BCLog::RPC, "RPC stopped.\n"); } std::string HelpMessage(HelpMessageMode mode) { + const auto defaultBaseParams = CreateBaseChainParams(CBaseChainParams::MAIN); + const auto testnetBaseParams = CreateBaseChainParams(CBaseChainParams::TESTNET); + const auto defaultChainParams = CreateChainParams(CBaseChainParams::MAIN); + const auto testnetChainParams = CreateChainParams(CBaseChainParams::TESTNET); + const bool showDebug = gArgs.GetBoolArg("-help-debug", false); + // When adding new options to the categories, please keep and ensure alphabetical ordering. - string strUsage = _("Options:") + "\n"; - strUsage += " -? " + _("This help message") + "\n"; - strUsage += " -alertnotify=<cmd> " + _("Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)") + "\n"; - strUsage += " -blocknotify=<cmd> " + _("Execute command when the best block changes (%s in cmd is replaced by block hash)") + "\n"; - strUsage += " -checkblocks=<n> " + strprintf(_("How many blocks to check at startup (default: %u, 0 = all)"), 288) + "\n"; - strUsage += " -checklevel=<n> " + strprintf(_("How thorough the block verification of -checkblocks is (0-4, default: %u)"), 3) + "\n"; - strUsage += " -conf=<file> " + strprintf(_("Specify configuration file (default: %s)"), "bitcoin.conf") + "\n"; + // Do not translate _(...) -help-debug options, Many technical terms, and only a very small audience, so is unnecessary stress to translators. + std::string strUsage = HelpMessageGroup(_("Options:")); + strUsage += HelpMessageOpt("-?", _("Print this help message and exit")); + strUsage += HelpMessageOpt("-version", _("Print version and exit")); + strUsage += HelpMessageOpt("-alertnotify=<cmd>", _("Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)")); + strUsage +=HelpMessageOpt("-assumevalid=<hex>", strprintf(_("If this block is in the chain assume that it and its ancestors are valid and potentially skip their script verification (0 to verify all, default: %s, testnet: %s)"), defaultChainParams->GetConsensus().defaultAssumeValid.GetHex(), testnetChainParams->GetConsensus().defaultAssumeValid.GetHex())); + strUsage += HelpMessageOpt("-blocknotify=<cmd>", _("Execute command when the best block changes (%s in cmd is replaced by block hash)")); + strUsage += HelpMessageOpt("-blockreconstructionextratxn=<n>", strprintf(_("Extra transactions to keep in memory for compact block reconstructions (default: %u)"), DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN)); + if (showDebug) + strUsage += HelpMessageOpt("-blocksonly", strprintf(_("Whether to operate in a blocks only mode (default: %u)"), DEFAULT_BLOCKSONLY)); + strUsage += HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file. Relative paths will be prefixed by datadir location. (default: %s)"), BITCOIN_CONF_FILENAME)); if (mode == HMM_BITCOIND) { -#if !defined(WIN32) - strUsage += " -daemon " + _("Run in the background as a daemon and accept commands") + "\n"; +#if HAVE_DECL_DAEMON + strUsage += HelpMessageOpt("-daemon", _("Run in the background as a daemon and accept commands")); #endif } - strUsage += " -datadir=<dir> " + _("Specify data directory") + "\n"; - strUsage += " -dbcache=<n> " + strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache, nMaxDbCache, nDefaultDbCache) + "\n"; - strUsage += " -loadblock=<file> " + _("Imports blocks from external blk000??.dat file") + " " + _("on startup") + "\n"; - strUsage += " -maxorphanblocks=<n> " + strprintf(_("Keep at most <n> unconnectable blocks in memory (default: %u)"), DEFAULT_MAX_ORPHAN_BLOCKS) + "\n"; - strUsage += " -maxorphantx=<n> " + strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS) + "\n"; - strUsage += " -par=<n> " + strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"), -(int)boost::thread::hardware_concurrency(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS) + "\n"; + strUsage += HelpMessageOpt("-datadir=<dir>", _("Specify data directory")); + if (showDebug) { + strUsage += HelpMessageOpt("-dbbatchsize", strprintf("Maximum database write batch size in bytes (default: %u)", nDefaultDbBatchSize)); + } + strUsage += HelpMessageOpt("-dbcache=<n>", strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache, nMaxDbCache, nDefaultDbCache)); + strUsage += HelpMessageOpt("-debuglogfile=<file>", strprintf(_("Specify location of debug log file. Relative paths will be prefixed by a net-specific datadir location. (default: %s)"), DEFAULT_DEBUGLOGFILE)); + if (showDebug) + strUsage += HelpMessageOpt("-feefilter", strprintf("Tell other nodes to filter invs to us by our mempool min fee (default: %u)", DEFAULT_FEEFILTER)); + strUsage += HelpMessageOpt("-loadblock=<file>", _("Imports blocks from external blk000??.dat file on startup")); + strUsage += HelpMessageOpt("-maxmempool=<n>", strprintf(_("Keep the transaction memory pool below <n> megabytes (default: %u)"), DEFAULT_MAX_MEMPOOL_SIZE)); + strUsage += HelpMessageOpt("-maxorphantx=<n>", strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS)); + strUsage += HelpMessageOpt("-mempoolexpiry=<n>", strprintf(_("Do not keep transactions in the mempool longer than <n> hours (default: %u)"), DEFAULT_MEMPOOL_EXPIRY)); + if (showDebug) { + strUsage += HelpMessageOpt("-minimumchainwork=<hex>", strprintf("Minimum work assumed to exist on a valid chain in hex (default: %s, testnet: %s)", defaultChainParams->GetConsensus().nMinimumChainWork.GetHex(), testnetChainParams->GetConsensus().nMinimumChainWork.GetHex())); + } + strUsage += HelpMessageOpt("-par=<n>", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"), + -GetNumCores(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS)); + strUsage += HelpMessageOpt("-persistmempool", strprintf(_("Whether to save the mempool on shutdown and load on restart (default: %u)"), DEFAULT_PERSIST_MEMPOOL)); #ifndef WIN32 - strUsage += " -pid=<file> " + strprintf(_("Specify pid file (default: %s)"), "bitcoind.pid") + "\n"; + strUsage += HelpMessageOpt("-pid=<file>", strprintf(_("Specify pid file. Relative paths will be prefixed by a net-specific datadir location. (default: %s)"), BITCOIN_PID_FILENAME)); #endif - strUsage += " -reindex " + _("Rebuild block chain index from current blk000??.dat files") + " " + _("on startup") + "\n"; -#if !defined(WIN32) - strUsage += " -sysperms " + _("Create new files with system default permissions, instead of umask 077 (only effective with disabled wallet functionality)") + "\n"; + strUsage += HelpMessageOpt("-prune=<n>", strprintf(_("Reduce storage requirements by enabling pruning (deleting) of old blocks. This allows the pruneblockchain RPC to be called to delete specific blocks, and enables automatic pruning of old blocks if a target size in MiB is provided. This mode is incompatible with -txindex and -rescan. " + "Warning: Reverting this setting requires re-downloading the entire blockchain. " + "(default: 0 = disable pruning blocks, 1 = allow manual pruning via RPC, >%u = automatically prune block files to stay under the specified target size in MiB)"), MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024)); + strUsage += HelpMessageOpt("-reindex", _("Rebuild chain state and block index from the blk*.dat files on disk")); + strUsage += HelpMessageOpt("-reindex-chainstate", _("Rebuild chain state from the currently indexed blocks")); +#ifndef WIN32 + strUsage += HelpMessageOpt("-sysperms", _("Create new files with system default permissions, instead of umask 077 (only effective with disabled wallet functionality)")); #endif - strUsage += " -txindex " + strprintf(_("Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)"), 0) + "\n"; - - strUsage += "\n" + _("Connection options:") + "\n"; - strUsage += " -addnode=<ip> " + _("Add a node to connect to and attempt to keep the connection open") + "\n"; - strUsage += " -banscore=<n> " + strprintf(_("Threshold for disconnecting misbehaving peers (default: %u)"), 100) + "\n"; - strUsage += " -bantime=<n> " + strprintf(_("Number of seconds to keep misbehaving peers from reconnecting (default: %u)"), 86400) + "\n"; - strUsage += " -bind=<addr> " + _("Bind to given address and always listen on it. Use [host]:port notation for IPv6") + "\n"; - strUsage += " -connect=<ip> " + _("Connect only to the specified node(s)") + "\n"; - strUsage += " -discover " + _("Discover own IP address (default: 1 when listening and no -externalip)") + "\n"; - strUsage += " -dns " + _("Allow DNS lookups for -addnode, -seednode and -connect") + " " + _("(default: 1)") + "\n"; - strUsage += " -dnsseed " + _("Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect)") + "\n"; - strUsage += " -externalip=<ip> " + _("Specify your own public address") + "\n"; - strUsage += " -forcednsseed " + strprintf(_("Always query for peer addresses via DNS lookup (default: %u)"), 0) + "\n"; - strUsage += " -listen " + _("Accept connections from outside (default: 1 if no -proxy or -connect)") + "\n"; - strUsage += " -maxconnections=<n> " + strprintf(_("Maintain at most <n> connections to peers (default: %u)"), 125) + "\n"; - strUsage += " -maxreceivebuffer=<n> " + strprintf(_("Maximum per-connection receive buffer, <n>*1000 bytes (default: %u)"), 5000) + "\n"; - strUsage += " -maxsendbuffer=<n> " + strprintf(_("Maximum per-connection send buffer, <n>*1000 bytes (default: %u)"), 1000) + "\n"; - strUsage += " -onion=<ip:port> " + strprintf(_("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: %s)"), "-proxy") + "\n"; - strUsage += " -onlynet=<net> " + _("Only connect to nodes in network <net> (ipv4, ipv6 or onion)") + "\n"; - strUsage += " -permitbaremultisig " + strprintf(_("Relay non-P2SH multisig (default: %u)"), 1) + "\n"; - strUsage += " -port=<port> " + strprintf(_("Listen for connections on <port> (default: %u or testnet: %u)"), 8333, 18333) + "\n"; - strUsage += " -proxy=<ip:port> " + _("Connect through SOCKS5 proxy") + "\n"; - strUsage += " -seednode=<ip> " + _("Connect to a node to retrieve peer addresses, and disconnect") + "\n"; - strUsage += " -timeout=<n> " + strprintf(_("Specify connection timeout in milliseconds (minimum: 1, default: %d)"), DEFAULT_CONNECT_TIMEOUT) + "\n"; + strUsage += HelpMessageOpt("-txindex", strprintf(_("Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)"), DEFAULT_TXINDEX)); + + strUsage += HelpMessageGroup(_("Connection options:")); + strUsage += HelpMessageOpt("-addnode=<ip>", _("Add a node to connect to and attempt to keep the connection open (see the `addnode` RPC command help for more info)")); + strUsage += HelpMessageOpt("-banscore=<n>", strprintf(_("Threshold for disconnecting misbehaving peers (default: %u)"), DEFAULT_BANSCORE_THRESHOLD)); + strUsage += HelpMessageOpt("-bantime=<n>", strprintf(_("Number of seconds to keep misbehaving peers from reconnecting (default: %u)"), DEFAULT_MISBEHAVING_BANTIME)); + strUsage += HelpMessageOpt("-bind=<addr>", _("Bind to given address and always listen on it. Use [host]:port notation for IPv6")); + strUsage += HelpMessageOpt("-connect=<ip>", _("Connect only to the specified node(s); -connect=0 disables automatic connections (the rules for this peer are the same as for -addnode)")); + strUsage += HelpMessageOpt("-discover", _("Discover own IP addresses (default: 1 when listening and no -externalip or -proxy)")); + strUsage += HelpMessageOpt("-dns", _("Allow DNS lookups for -addnode, -seednode and -connect") + " " + strprintf(_("(default: %u)"), DEFAULT_NAME_LOOKUP)); + strUsage += HelpMessageOpt("-dnsseed", _("Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect used)")); + strUsage += HelpMessageOpt("-externalip=<ip>", _("Specify your own public address")); + strUsage += HelpMessageOpt("-forcednsseed", strprintf(_("Always query for peer addresses via DNS lookup (default: %u)"), DEFAULT_FORCEDNSSEED)); + strUsage += HelpMessageOpt("-listen", _("Accept connections from outside (default: 1 if no -proxy or -connect)")); + strUsage += HelpMessageOpt("-listenonion", strprintf(_("Automatically create Tor hidden service (default: %d)"), DEFAULT_LISTEN_ONION)); + strUsage += HelpMessageOpt("-maxconnections=<n>", strprintf(_("Maintain at most <n> connections to peers (default: %u)"), DEFAULT_MAX_PEER_CONNECTIONS)); + strUsage += HelpMessageOpt("-maxreceivebuffer=<n>", strprintf(_("Maximum per-connection receive buffer, <n>*1000 bytes (default: %u)"), DEFAULT_MAXRECEIVEBUFFER)); + strUsage += HelpMessageOpt("-maxsendbuffer=<n>", strprintf(_("Maximum per-connection send buffer, <n>*1000 bytes (default: %u)"), DEFAULT_MAXSENDBUFFER)); + strUsage += HelpMessageOpt("-maxtimeadjustment", strprintf(_("Maximum allowed median peer time offset adjustment. Local perspective of time may be influenced by peers forward or backward by this amount. (default: %u seconds)"), DEFAULT_MAX_TIME_ADJUSTMENT)); + strUsage += HelpMessageOpt("-maxuploadtarget=<n>", strprintf(_("Tries to keep outbound traffic under the given target (in MiB per 24h), 0 = no limit (default: %d)"), DEFAULT_MAX_UPLOAD_TARGET)); + strUsage += HelpMessageOpt("-onion=<ip:port>", strprintf(_("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: %s)"), "-proxy")); + strUsage += HelpMessageOpt("-onlynet=<net>", _("Only connect to nodes in network <net> (ipv4, ipv6 or onion)")); + strUsage += HelpMessageOpt("-peerbloomfilters", strprintf(_("Support filtering of blocks and transaction with bloom filters (default: %u)"), DEFAULT_PEERBLOOMFILTERS)); + strUsage += HelpMessageOpt("-permitbaremultisig", strprintf(_("Relay non-P2SH multisig (default: %u)"), DEFAULT_PERMIT_BAREMULTISIG)); + strUsage += HelpMessageOpt("-port=<port>", strprintf(_("Listen for connections on <port> (default: %u or testnet: %u)"), defaultChainParams->GetDefaultPort(), testnetChainParams->GetDefaultPort())); + strUsage += HelpMessageOpt("-proxy=<ip:port>", _("Connect through SOCKS5 proxy")); + strUsage += HelpMessageOpt("-proxyrandomize", strprintf(_("Randomize credentials for every proxy connection. This enables Tor stream isolation (default: %u)"), DEFAULT_PROXYRANDOMIZE)); + strUsage += HelpMessageOpt("-seednode=<ip>", _("Connect to a node to retrieve peer addresses, and disconnect")); + strUsage += HelpMessageOpt("-timeout=<n>", strprintf(_("Specify connection timeout in milliseconds (minimum: 1, default: %d)"), DEFAULT_CONNECT_TIMEOUT)); + strUsage += HelpMessageOpt("-torcontrol=<ip>:<port>", strprintf(_("Tor control port to use if onion listening enabled (default: %s)"), DEFAULT_TOR_CONTROL)); + strUsage += HelpMessageOpt("-torpassword=<pass>", _("Tor control port password (default: empty)")); #ifdef USE_UPNP #if USE_UPNP - strUsage += " -upnp " + _("Use UPnP to map the listening port (default: 1 when listening)") + "\n"; + strUsage += HelpMessageOpt("-upnp", _("Use UPnP to map the listening port (default: 1 when listening and no -proxy)")); #else - strUsage += " -upnp " + strprintf(_("Use UPnP to map the listening port (default: %u)"), 0) + "\n"; + strUsage += HelpMessageOpt("-upnp", strprintf(_("Use UPnP to map the listening port (default: %u)"), 0)); #endif #endif - strUsage += " -whitebind=<addr> " + _("Bind to given address and whitelist peers connecting to it. Use [host]:port notation for IPv6") + "\n"; - strUsage += " -whitelist=<netmask> " + _("Whitelist peers connecting from the given netmask or IP address. Can be specified multiple times.") + "\n"; - strUsage += " " + _("Whitelisted peers cannot be DoS banned and their transactions are always relayed, even if they are already in the mempool, useful e.g. for a gateway") + "\n"; + strUsage += HelpMessageOpt("-whitebind=<addr>", _("Bind to given address and whitelist peers connecting to it. Use [host]:port notation for IPv6")); + strUsage += HelpMessageOpt("-whitelist=<IP address or network>", _("Whitelist peers connecting from the given IP address (e.g. 1.2.3.4) or CIDR notated network (e.g. 1.2.3.0/24). Can be specified multiple times.") + + " " + _("Whitelisted peers cannot be DoS banned and their transactions are always relayed, even if they are already in the mempool, useful e.g. for a gateway")); #ifdef ENABLE_WALLET - strUsage += "\n" + _("Wallet options:") + "\n"; - strUsage += " -disablewallet " + _("Do not load the wallet and disable wallet RPC calls") + "\n"; - strUsage += " -keypool=<n> " + strprintf(_("Set key pool size to <n> (default: %u)"), 100) + "\n"; - if (GetBoolArg("-help-debug", false)) - strUsage += " -mintxfee=<amt> " + strprintf(_("Fees (in BTC/Kb) smaller than this are considered zero fee for transaction creation (default: %s)"), FormatMoney(CWallet::minTxFee.GetFeePerK())) + "\n"; - strUsage += " -paytxfee=<amt> " + strprintf(_("Fee (in BTC/kB) to add to transactions you send (default: %s)"), FormatMoney(payTxFee.GetFeePerK())) + "\n"; - strUsage += " -rescan " + _("Rescan the block chain for missing wallet transactions") + " " + _("on startup") + "\n"; - strUsage += " -salvagewallet " + _("Attempt to recover private keys from a corrupt wallet.dat") + " " + _("on startup") + "\n"; - strUsage += " -sendfreetransactions " + strprintf(_("Send transactions as zero-fee transactions if possible (default: %u)"), 0) + "\n"; - strUsage += " -spendzeroconfchange " + strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), 1) + "\n"; - strUsage += " -txconfirmtarget=<n> " + strprintf(_("If paytxfee is not set, include enough fee so transactions are confirmed on average within n blocks (default: %u)"), 1) + "\n"; - strUsage += " -upgradewallet " + _("Upgrade wallet to latest format") + " " + _("on startup") + "\n"; - strUsage += " -wallet=<file> " + _("Specify wallet file (within data directory)") + " " + strprintf(_("(default: %s)"), "wallet.dat") + "\n"; - strUsage += " -walletnotify=<cmd> " + _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)") + "\n"; - strUsage += " -zapwallettxes=<mode> " + _("Delete all wallet transactions and only recover those parts of the blockchain through -rescan on startup") + "\n"; - strUsage += " " + _("(1 = keep tx meta data e.g. account owner and payment request information, 2 = drop tx meta data)") + "\n"; + strUsage += GetWalletHelpString(showDebug); #endif - strUsage += "\n" + _("Debugging/Testing options:") + "\n"; - if (GetBoolArg("-help-debug", false)) - { - strUsage += " -checkpoints " + strprintf(_("Only accept block chain matching built-in checkpoints (default: %u)"), 1) + "\n"; - strUsage += " -dblogsize=<n> " + strprintf(_("Flush database activity from memory pool to disk log every <n> megabytes (default: %u)"), 100) + "\n"; - strUsage += " -disablesafemode " + strprintf(_("Disable safemode, override a real safe mode event (default: %u)"), 0) + "\n"; - strUsage += " -testsafemode " + strprintf(_("Force safe mode (default: %u)"), 0) + "\n"; - strUsage += " -dropmessagestest=<n> " + _("Randomly drop 1 of every <n> network messages") + "\n"; - strUsage += " -fuzzmessagestest=<n> " + _("Randomly fuzz 1 of every <n> network messages") + "\n"; - strUsage += " -flushwallet " + strprintf(_("Run a thread to flush wallet periodically (default: %u)"), 1) + "\n"; - strUsage += " -stopafterblockimport " + strprintf(_("Stop running after importing blocks from disk (default: %u)"), 0) + "\n"; - } - strUsage += " -debug=<category> " + strprintf(_("Output debugging information (default: %u, supplying <category> is optional)"), 0) + "\n"; - strUsage += " " + _("If <category> is not supplied, output all debugging information.") + "\n"; - strUsage += " " + _("<category> can be:"); - strUsage += " addrman, alert, bench, coindb, db, lock, rand, rpc, selectcoins, mempool, net"; // Don't translate these and qt below - if (mode == HMM_BITCOIN_QT) - strUsage += ", qt"; - strUsage += ".\n"; -#ifdef ENABLE_WALLET - strUsage += " -gen " + strprintf(_("Generate coins (default: %u)"), 0) + "\n"; - strUsage += " -genproclimit=<n> " + strprintf(_("Set the number of threads for coin generation if enabled (-1 = all cores, default: %d)"), 1) + "\n"; +#if ENABLE_ZMQ + strUsage += HelpMessageGroup(_("ZeroMQ notification options:")); + strUsage += HelpMessageOpt("-zmqpubhashblock=<address>", _("Enable publish hash block in <address>")); + strUsage += HelpMessageOpt("-zmqpubhashtx=<address>", _("Enable publish hash transaction in <address>")); + strUsage += HelpMessageOpt("-zmqpubrawblock=<address>", _("Enable publish raw block in <address>")); + strUsage += HelpMessageOpt("-zmqpubrawtx=<address>", _("Enable publish raw transaction in <address>")); #endif - strUsage += " -help-debug " + _("Show all debugging options (usage: --help -help-debug)") + "\n"; - strUsage += " -logips " + strprintf(_("Include IP addresses in debug output (default: %u)"), 0) + "\n"; - strUsage += " -logtimestamps " + strprintf(_("Prepend debug output with timestamp (default: %u)"), 1) + "\n"; - if (GetBoolArg("-help-debug", false)) + + strUsage += HelpMessageGroup(_("Debugging/Testing options:")); + if (showDebug) + { + strUsage += HelpMessageOpt("-checkblocks=<n>", strprintf(_("How many blocks to check at startup (default: %u, 0 = all)"), DEFAULT_CHECKBLOCKS)); + strUsage += HelpMessageOpt("-checklevel=<n>", strprintf(_("How thorough the block verification of -checkblocks is (0-4, default: %u)"), DEFAULT_CHECKLEVEL)); + strUsage += HelpMessageOpt("-checkblockindex", strprintf("Do a full consistency check for mapBlockIndex, setBlockIndexCandidates, chainActive and mapBlocksUnlinked occasionally. Also sets -checkmempool (default: %u)", defaultChainParams->DefaultConsistencyChecks())); + strUsage += HelpMessageOpt("-checkmempool=<n>", strprintf("Run checks every <n> transactions (default: %u)", defaultChainParams->DefaultConsistencyChecks())); + strUsage += HelpMessageOpt("-checkpoints", strprintf("Disable expensive verification for known chain history (default: %u)", DEFAULT_CHECKPOINTS_ENABLED)); + strUsage += HelpMessageOpt("-disablesafemode", strprintf("Disable safemode, override a real safe mode event (default: %u)", DEFAULT_DISABLE_SAFEMODE)); + strUsage += HelpMessageOpt("-deprecatedrpc=<method>", "Allows deprecated RPC method(s) to be used"); + strUsage += HelpMessageOpt("-testsafemode", strprintf("Force safe mode (default: %u)", DEFAULT_TESTSAFEMODE)); + strUsage += HelpMessageOpt("-dropmessagestest=<n>", "Randomly drop 1 of every <n> network messages"); + strUsage += HelpMessageOpt("-fuzzmessagestest=<n>", "Randomly fuzz 1 of every <n> network messages"); + strUsage += HelpMessageOpt("-stopafterblockimport", strprintf("Stop running after importing blocks from disk (default: %u)", DEFAULT_STOPAFTERBLOCKIMPORT)); + strUsage += HelpMessageOpt("-stopatheight", strprintf("Stop running after reaching the given height in the main chain (default: %u)", DEFAULT_STOPATHEIGHT)); + + strUsage += HelpMessageOpt("-limitancestorcount=<n>", strprintf("Do not accept transactions if number of in-mempool ancestors is <n> or more (default: %u)", DEFAULT_ANCESTOR_LIMIT)); + strUsage += HelpMessageOpt("-limitancestorsize=<n>", strprintf("Do not accept transactions whose size with all in-mempool ancestors exceeds <n> kilobytes (default: %u)", DEFAULT_ANCESTOR_SIZE_LIMIT)); + strUsage += HelpMessageOpt("-limitdescendantcount=<n>", strprintf("Do not accept transactions if any ancestor would have <n> or more in-mempool descendants (default: %u)", DEFAULT_DESCENDANT_LIMIT)); + strUsage += HelpMessageOpt("-limitdescendantsize=<n>", strprintf("Do not accept transactions if any ancestor would have more than <n> kilobytes of in-mempool descendants (default: %u).", DEFAULT_DESCENDANT_SIZE_LIMIT)); + strUsage += HelpMessageOpt("-vbparams=deployment:start:end", "Use given start/end times for specified version bits deployment (regtest-only)"); + } + strUsage += HelpMessageOpt("-debug=<category>", strprintf(_("Output debugging information (default: %u, supplying <category> is optional)"), 0) + ". " + + _("If <category> is not supplied or if <category> = 1, output all debugging information.") + " " + _("<category> can be:") + " " + ListLogCategories() + "."); + strUsage += HelpMessageOpt("-debugexclude=<category>", strprintf(_("Exclude debugging information for a category. Can be used in conjunction with -debug=1 to output debug logs for all categories except one or more specified categories."))); + strUsage += HelpMessageOpt("-help-debug", _("Show all debugging options (usage: --help -help-debug)")); + strUsage += HelpMessageOpt("-logips", strprintf(_("Include IP addresses in debug output (default: %u)"), DEFAULT_LOGIPS)); + strUsage += HelpMessageOpt("-logtimestamps", strprintf(_("Prepend debug output with timestamp (default: %u)"), DEFAULT_LOGTIMESTAMPS)); + if (showDebug) { - strUsage += " -limitfreerelay=<n> " + strprintf(_("Continuously rate-limit free transactions to <n>*1000 bytes per minute (default:%u)"), 15) + "\n"; - strUsage += " -maxsigcachesize=<n> " + strprintf(_("Limit size of signature cache to <n> entries (default: %u)"), 50000) + "\n"; + strUsage += HelpMessageOpt("-logtimemicros", strprintf("Add microsecond precision to debug timestamps (default: %u)", DEFAULT_LOGTIMEMICROS)); + strUsage += HelpMessageOpt("-mocktime=<n>", "Replace actual time with <n> seconds since epoch (default: 0)"); + strUsage += HelpMessageOpt("-maxsigcachesize=<n>", strprintf("Limit sum of signature cache and script execution cache sizes to <n> MiB (default: %u)", DEFAULT_MAX_SIG_CACHE_SIZE)); + strUsage += HelpMessageOpt("-maxtipage=<n>", strprintf("Maximum tip age in seconds to consider node in initial block download (default: %u)", DEFAULT_MAX_TIP_AGE)); } - strUsage += " -minrelaytxfee=<amt> " + strprintf(_("Fees (in BTC/Kb) smaller than this are considered zero fee for relaying (default: %s)"), FormatMoney(::minRelayTxFee.GetFeePerK())) + "\n"; - strUsage += " -printtoconsole " + _("Send trace/debug info to console instead of debug.log file") + "\n"; - if (GetBoolArg("-help-debug", false)) + strUsage += HelpMessageOpt("-maxtxfee=<amt>", strprintf(_("Maximum total fees (in %s) to use in a single wallet transaction or raw transaction; setting this too low may abort large transactions (default: %s)"), + CURRENCY_UNIT, FormatMoney(DEFAULT_TRANSACTION_MAXFEE))); + if (showDebug) { - strUsage += " -printpriority " + strprintf(_("Log transaction priority and fee per kB when mining blocks (default: %u)"), 0) + "\n"; - strUsage += " -privdb " + strprintf(_("Sets the DB_PRIVATE flag in the wallet db environment (default: %u)"), 1) + "\n"; - strUsage += " -regtest " + _("Enter regression test mode, which uses a special chain in which blocks can be solved instantly.") + "\n"; - strUsage += " " + _("This is intended for regression testing tools and app development.") + "\n"; - strUsage += " " + _("In this mode -genproclimit controls how many blocks are generated immediately.") + "\n"; - } - strUsage += " -shrinkdebugfile " + _("Shrink debug.log file on client startup (default: 1 when no -debug)") + "\n"; - strUsage += " -testnet " + _("Use the test network") + "\n"; - - strUsage += "\n" + _("Node relay options:") + "\n"; - strUsage += " -datacarrier " + strprintf(_("Relay and mine data carrier transactions (default: %u)"), 1) + "\n"; - strUsage += " -datacarriersize " + strprintf(_("Maximum size of data in data carrier transactions we relay and mine (default: %u)"), MAX_OP_RETURN_RELAY) + "\n"; - - strUsage += "\n" + _("Block creation options:") + "\n"; - strUsage += " -blockminsize=<n> " + strprintf(_("Set minimum block size in bytes (default: %u)"), 0) + "\n"; - strUsage += " -blockmaxsize=<n> " + strprintf(_("Set maximum block size in bytes (default: %d)"), DEFAULT_BLOCK_MAX_SIZE) + "\n"; - strUsage += " -blockprioritysize=<n> " + strprintf(_("Set maximum size of high-priority/low-fee transactions in bytes (default: %d)"), DEFAULT_BLOCK_PRIORITY_SIZE) + "\n"; - - strUsage += "\n" + _("RPC server options:") + "\n"; - strUsage += " -server " + _("Accept command line and JSON-RPC commands") + "\n"; - strUsage += " -rest " + strprintf(_("Accept public REST requests (default: %u)"), 0) + "\n"; - strUsage += " -rpcbind=<addr> " + _("Bind to given address to listen for JSON-RPC connections. Use [host]:port notation for IPv6. This option can be specified multiple times (default: bind to all interfaces)") + "\n"; - strUsage += " -rpcuser=<user> " + _("Username for JSON-RPC connections") + "\n"; - strUsage += " -rpcpassword=<pw> " + _("Password for JSON-RPC connections") + "\n"; - strUsage += " -rpcport=<port> " + strprintf(_("Listen for JSON-RPC connections on <port> (default: %u or testnet: %u)"), 8332, 18332) + "\n"; - strUsage += " -rpcallowip=<ip> " + _("Allow JSON-RPC connections from specified source. Valid for <ip> are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified multiple times") + "\n"; - strUsage += " -rpcthreads=<n> " + strprintf(_("Set the number of threads to service RPC calls (default: %d)"), 4) + "\n"; - - strUsage += "\n" + _("RPC SSL options: (see the Bitcoin Wiki for SSL setup instructions)") + "\n"; - strUsage += " -rpcssl " + _("Use OpenSSL (https) for JSON-RPC connections") + "\n"; - strUsage += " -rpcsslcertificatechainfile=<file.cert> " + strprintf(_("Server certificate file (default: %s)"), "server.cert") + "\n"; - strUsage += " -rpcsslprivatekeyfile=<file.pem> " + strprintf(_("Server private key (default: %s)"), "server.pem") + "\n"; - strUsage += " -rpcsslciphers=<ciphers> " + strprintf(_("Acceptable ciphers (default: %s)"), "TLSv1.2+HIGH:TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!3DES:@STRENGTH") + "\n"; + strUsage += HelpMessageOpt("-printpriority", strprintf("Log transaction fee per kB when mining blocks (default: %u)", DEFAULT_PRINTPRIORITY)); + } + strUsage += HelpMessageOpt("-printtoconsole", _("Send trace/debug info to console instead of debug.log file")); + strUsage += HelpMessageOpt("-shrinkdebugfile", _("Shrink debug.log file on client startup (default: 1 when no -debug)")); + strUsage += HelpMessageOpt("-uacomment=<cmt>", _("Append comment to the user agent string")); + + AppendParamsHelpMessages(strUsage, showDebug); + + strUsage += HelpMessageGroup(_("Node relay options:")); + if (showDebug) { + strUsage += HelpMessageOpt("-acceptnonstdtxn", strprintf("Relay and mine \"non-standard\" transactions (%sdefault: %u)", "testnet/regtest only; ", !testnetChainParams->RequireStandard())); + strUsage += HelpMessageOpt("-incrementalrelayfee=<amt>", strprintf("Fee rate (in %s/kB) used to define cost of relay, used for mempool limiting and BIP 125 replacement. (default: %s)", CURRENCY_UNIT, FormatMoney(DEFAULT_INCREMENTAL_RELAY_FEE))); + strUsage += HelpMessageOpt("-dustrelayfee=<amt>", strprintf("Fee rate (in %s/kB) used to defined dust, the value of an output such that it will cost more than its value in fees at this fee rate to spend it. (default: %s)", CURRENCY_UNIT, FormatMoney(DUST_RELAY_TX_FEE))); + } + strUsage += HelpMessageOpt("-bytespersigop", strprintf(_("Equivalent bytes per sigop in transactions for relay and mining (default: %u)"), DEFAULT_BYTES_PER_SIGOP)); + strUsage += HelpMessageOpt("-datacarrier", strprintf(_("Relay and mine data carrier transactions (default: %u)"), DEFAULT_ACCEPT_DATACARRIER)); + strUsage += HelpMessageOpt("-datacarriersize", strprintf(_("Maximum size of data in data carrier transactions we relay and mine (default: %u)"), MAX_OP_RETURN_RELAY)); + strUsage += HelpMessageOpt("-mempoolreplacement", strprintf(_("Enable transaction replacement in the memory pool (default: %u)"), DEFAULT_ENABLE_REPLACEMENT)); + strUsage += HelpMessageOpt("-minrelaytxfee=<amt>", strprintf(_("Fees (in %s/kB) smaller than this are considered zero fee for relaying, mining and transaction creation (default: %s)"), + CURRENCY_UNIT, FormatMoney(DEFAULT_MIN_RELAY_TX_FEE))); + strUsage += HelpMessageOpt("-whitelistforcerelay", strprintf(_("Force relay of transactions from whitelisted peers even if they violate local relay policy (default: %d)"), DEFAULT_WHITELISTFORCERELAY)); + strUsage += HelpMessageOpt("-whitelistrelay", strprintf(_("Accept relayed transactions received from whitelisted peers even when not relaying transactions (default: %d)"), DEFAULT_WHITELISTRELAY)); + + strUsage += HelpMessageGroup(_("Block creation options:")); + strUsage += HelpMessageOpt("-blockmaxsize=<n>", _("Set maximum BIP141 block weight to this * 4. Deprecated, use blockmaxweight")); + strUsage += HelpMessageOpt("-blockmaxweight=<n>", strprintf(_("Set maximum BIP141 block weight (default: %d)"), DEFAULT_BLOCK_MAX_WEIGHT)); + strUsage += HelpMessageOpt("-blockmintxfee=<amt>", strprintf(_("Set lowest fee rate (in %s/kB) for transactions to be included in block creation. (default: %s)"), CURRENCY_UNIT, FormatMoney(DEFAULT_BLOCK_MIN_TX_FEE))); + if (showDebug) + strUsage += HelpMessageOpt("-blockversion=<n>", "Override block version to test forking scenarios"); + + strUsage += HelpMessageGroup(_("RPC server options:")); + strUsage += HelpMessageOpt("-rest", strprintf(_("Accept public REST requests (default: %u)"), DEFAULT_REST_ENABLE)); + strUsage += HelpMessageOpt("-rpcallowip=<ip>", _("Allow JSON-RPC connections from specified source. Valid for <ip> are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified multiple times")); + strUsage += HelpMessageOpt("-rpcauth=<userpw>", _("Username and hashed password for JSON-RPC connections. The field <userpw> comes in the format: <USERNAME>:<SALT>$<HASH>. A canonical python script is included in share/rpcuser. The client then connects normally using the rpcuser=<USERNAME>/rpcpassword=<PASSWORD> pair of arguments. This option can be specified multiple times")); + strUsage += HelpMessageOpt("-rpcbind=<addr>[:port]", _("Bind to given address to listen for JSON-RPC connections. This option is ignored unless -rpcallowip is also passed. Port is optional and overrides -rpcport. Use [host]:port notation for IPv6. This option can be specified multiple times (default: 127.0.0.1 and ::1 i.e., localhost, or if -rpcallowip has been specified, 0.0.0.0 and :: i.e., all addresses)")); + strUsage += HelpMessageOpt("-rpccookiefile=<loc>", _("Location of the auth cookie. Relative paths will be prefixed by a net-specific datadir location. (default: data dir)")); + strUsage += HelpMessageOpt("-rpcpassword=<pw>", _("Password for JSON-RPC connections")); + strUsage += HelpMessageOpt("-rpcport=<port>", strprintf(_("Listen for JSON-RPC connections on <port> (default: %u or testnet: %u)"), defaultBaseParams->RPCPort(), testnetBaseParams->RPCPort())); + strUsage += HelpMessageOpt("-rpcserialversion", strprintf(_("Sets the serialization of raw transaction or block hex returned in non-verbose mode, non-segwit(0) or segwit(1) (default: %d)"), DEFAULT_RPC_SERIALIZE_VERSION)); + if (showDebug) + strUsage += HelpMessageOpt("-rpcservertimeout=<n>", strprintf("Timeout during HTTP requests (default: %d)", DEFAULT_HTTP_SERVER_TIMEOUT)); + strUsage += HelpMessageOpt("-rpcthreads=<n>", strprintf(_("Set the number of threads to service RPC calls (default: %d)"), DEFAULT_HTTP_THREADS)); + strUsage += HelpMessageOpt("-rpcuser=<user>", _("Username for JSON-RPC connections")); + if (showDebug) + strUsage += HelpMessageOpt("-rpcworkqueue=<n>", strprintf("Set the depth of the work queue to service RPC calls (default: %d)", DEFAULT_HTTP_WORKQUEUE)); + strUsage += HelpMessageOpt("-server", _("Accept command line and JSON-RPC commands")); return strUsage; } std::string LicenseInfo() { - return FormatParagraph(strprintf(_("Copyright (C) 2009-%i The Bitcoin Core Developers"), COPYRIGHT_YEAR)) + "\n" + + const std::string URL_SOURCE_CODE = "<https://github.com/bitcoin/bitcoin>"; + const std::string URL_WEBSITE = "<https://bitcoincore.org>"; + + return CopyrightHolders(strprintf(_("Copyright (C) %i-%i"), 2009, COPYRIGHT_YEAR) + " ") + "\n" + + "\n" + + strprintf(_("Please contribute if you find %s useful. " + "Visit %s for further information about the software."), + PACKAGE_NAME, URL_WEBSITE) + + "\n" + + strprintf(_("The source code is available from %s."), + URL_SOURCE_CODE) + "\n" + - FormatParagraph(_("This is experimental software.")) + "\n" + "\n" + - FormatParagraph(_("Distributed under the MIT software license, see the accompanying file COPYING or <http://www.opensource.org/licenses/mit-license.php>.")) + "\n" + + _("This is experimental software.") + "\n" + + strprintf(_("Distributed under the MIT software license, see the accompanying file %s or %s"), "COPYING", "<https://opensource.org/licenses/MIT>") + "\n" + "\n" + - FormatParagraph(_("This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit <https://www.openssl.org/> and cryptographic software written by Eric Young and UPnP software written by Thomas Bernard.")) + + strprintf(_("This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit %s and cryptographic software written by Eric Young and UPnP software written by Thomas Bernard."), "<https://www.openssl.org>") + "\n"; } -static void BlockNotifyCallback(const uint256& hashNewTip) +static void BlockNotifyCallback(bool initialSync, const CBlockIndex *pBlockIndex) { - std::string strCmd = GetArg("-blocknotify", ""); + if (initialSync || !pBlockIndex) + return; + + std::string strCmd = gArgs.GetArg("-blocknotify", ""); + if (!strCmd.empty()) { + boost::replace_all(strCmd, "%s", pBlockIndex->GetBlockHash().GetHex()); + std::thread t(runCommand, strCmd); + t.detach(); // thread runs free + } +} + +static bool fHaveGenesis = false; +static CWaitableCriticalSection cs_GenesisWait; +static CConditionVariable condvar_GenesisWait; - boost::replace_all(strCmd, "%s", hashNewTip.GetHex()); - boost::thread t(runCommand, strCmd); // thread runs free +static void BlockNotifyGenesisWait(bool, const CBlockIndex *pBlockIndex) +{ + if (pBlockIndex != nullptr) { + { + WaitableLock lock_GenesisWait(cs_GenesisWait); + fHaveGenesis = true; + } + condvar_GenesisWait.notify_all(); + } } struct CImportingNow @@ -400,41 +579,85 @@ struct CImportingNow } }; -void ThreadImport(std::vector<boost::filesystem::path> vImportFiles) + +// If we're using -prune with -reindex, then delete block files that will be ignored by the +// reindex. Since reindexing works by starting at block file 0 and looping until a blockfile +// is missing, do the same here to delete any later block files after a gap. Also delete all +// rev files since they'll be rewritten by the reindex anyway. This ensures that vinfoBlockFile +// is in sync with what's actually on disk by the time we start downloading, so that pruning +// works correctly. +void CleanupBlockRevFiles() +{ + std::map<std::string, fs::path> mapBlockFiles; + + // Glob all blk?????.dat and rev?????.dat files from the blocks directory. + // Remove the rev files immediately and insert the blk file paths into an + // ordered map keyed by block file index. + LogPrintf("Removing unusable blk?????.dat and rev?????.dat files for -reindex with -prune\n"); + fs::path blocksdir = GetDataDir() / "blocks"; + for (fs::directory_iterator it(blocksdir); it != fs::directory_iterator(); it++) { + if (fs::is_regular_file(*it) && + it->path().filename().string().length() == 12 && + it->path().filename().string().substr(8,4) == ".dat") + { + if (it->path().filename().string().substr(0,3) == "blk") + mapBlockFiles[it->path().filename().string().substr(3,5)] = it->path(); + else if (it->path().filename().string().substr(0,3) == "rev") + remove(it->path()); + } + } + + // Remove all block files that aren't part of a contiguous set starting at + // zero by walking the ordered map (keys are block file indices) by + // keeping a separate counter. Once we hit a gap (or if 0 doesn't exist) + // start removing block files. + int nContigCounter = 0; + for (const std::pair<std::string, fs::path>& item : mapBlockFiles) { + if (atoi(item.first) == nContigCounter) { + nContigCounter++; + continue; + } + remove(item.second); + } +} + +void ThreadImport(std::vector<fs::path> vImportFiles) { + const CChainParams& chainparams = Params(); RenameThread("bitcoin-loadblk"); + { + CImportingNow imp; + // -reindex if (fReindex) { - CImportingNow imp; int nFile = 0; while (true) { CDiskBlockPos pos(nFile, 0); - if (!boost::filesystem::exists(GetBlockPosFilename(pos, "blk"))) + if (!fs::exists(GetBlockPosFilename(pos, "blk"))) break; // No block files left to reindex FILE *file = OpenBlockFile(pos, true); if (!file) break; // This error is logged in OpenBlockFile LogPrintf("Reindexing block file blk%05u.dat...\n", (unsigned int)nFile); - LoadExternalBlockFile(file, &pos); + LoadExternalBlockFile(chainparams, file, &pos); nFile++; } pblocktree->WriteReindexing(false); fReindex = false; LogPrintf("Reindexing finished\n"); // To avoid ending up in a situation without genesis block, re-try initializing (no-op if reindexing worked): - InitBlockIndex(); + LoadGenesisBlock(chainparams); } // hardcoded $DATADIR/bootstrap.dat - filesystem::path pathBootstrap = GetDataDir() / "bootstrap.dat"; - if (filesystem::exists(pathBootstrap)) { - FILE *file = fopen(pathBootstrap.string().c_str(), "rb"); + fs::path pathBootstrap = GetDataDir() / "bootstrap.dat"; + if (fs::exists(pathBootstrap)) { + FILE *file = fsbridge::fopen(pathBootstrap, "rb"); if (file) { - CImportingNow imp; - filesystem::path pathBootstrapOld = GetDataDir() / "bootstrap.dat.old"; + fs::path pathBootstrapOld = GetDataDir() / "bootstrap.dat.old"; LogPrintf("Importing bootstrap.dat...\n"); - LoadExternalBlockFile(file); + LoadExternalBlockFile(chainparams, file); RenameOver(pathBootstrap, pathBootstrapOld); } else { LogPrintf("Warning: Could not open bootstrap file %s\n", pathBootstrap.string()); @@ -442,21 +665,32 @@ void ThreadImport(std::vector<boost::filesystem::path> vImportFiles) } // -loadblock= - BOOST_FOREACH(boost::filesystem::path &path, vImportFiles) { - FILE *file = fopen(path.string().c_str(), "rb"); + for (const fs::path& path : vImportFiles) { + FILE *file = fsbridge::fopen(path, "rb"); if (file) { - CImportingNow imp; LogPrintf("Importing blocks file %s...\n", path.string()); - LoadExternalBlockFile(file); + LoadExternalBlockFile(chainparams, file); } else { LogPrintf("Warning: Could not open blocks file %s\n", path.string()); } } - if (GetBoolArg("-stopafterblockimport", false)) { + // scan for better chains in the block chain database, that are not yet connected in the active best chain + CValidationState state; + if (!ActivateBestChain(state, chainparams)) { + LogPrintf("Failed to connect best block"); + StartShutdown(); + } + + if (gArgs.GetBoolArg("-stopafterblockimport", DEFAULT_STOPAFTERBLOCKIMPORT)) { LogPrintf("Stopping after block import\n"); StartShutdown(); } + } // End scope of CImportingNow + if (gArgs.GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) { + LoadMempool(); + fDumpMempoolLater = !fRequestShutdown; + } } /** Sanity checks @@ -466,28 +700,162 @@ void ThreadImport(std::vector<boost::filesystem::path> vImportFiles) bool InitSanityCheck(void) { if(!ECC_InitSanityCheck()) { - InitError("OpenSSL appears to lack support for elliptic curve cryptography. For more " - "information, visit https://en.bitcoin.it/wiki/OpenSSL_and_EC_Libraries"); + InitError("Elliptic curve cryptography sanity check failure. Aborting."); return false; } + if (!glibc_sanity_test() || !glibcxx_sanity_test()) return false; + if (!Random_SanityCheck()) { + InitError("OS cryptographic RNG sanity check failure. Aborting."); + return false; + } + return true; } -/** Initialize bitcoin. - * @pre Parameters should be parsed and config file should be read. - */ -bool AppInit2(boost::thread_group& threadGroup) +bool AppInitServers() +{ + RPCServer::OnStarted(&OnRPCStarted); + RPCServer::OnStopped(&OnRPCStopped); + if (!InitHTTPServer()) + return false; + if (!StartRPC()) + return false; + if (!StartHTTPRPC()) + return false; + if (gArgs.GetBoolArg("-rest", DEFAULT_REST_ENABLE) && !StartREST()) + return false; + if (!StartHTTPServer()) + return false; + return true; +} + +// Parameter interaction based on rules +void InitParameterInteraction() +{ + // when specifying an explicit binding address, you want to listen on it + // even when -connect or -proxy is specified + if (gArgs.IsArgSet("-bind")) { + if (gArgs.SoftSetBoolArg("-listen", true)) + LogPrintf("%s: parameter interaction: -bind set -> setting -listen=1\n", __func__); + } + if (gArgs.IsArgSet("-whitebind")) { + if (gArgs.SoftSetBoolArg("-listen", true)) + LogPrintf("%s: parameter interaction: -whitebind set -> setting -listen=1\n", __func__); + } + + if (gArgs.IsArgSet("-connect")) { + // when only connecting to trusted nodes, do not seed via DNS, or listen by default + if (gArgs.SoftSetBoolArg("-dnsseed", false)) + LogPrintf("%s: parameter interaction: -connect set -> setting -dnsseed=0\n", __func__); + if (gArgs.SoftSetBoolArg("-listen", false)) + LogPrintf("%s: parameter interaction: -connect set -> setting -listen=0\n", __func__); + } + + if (gArgs.IsArgSet("-proxy")) { + // to protect privacy, do not listen by default if a default proxy server is specified + if (gArgs.SoftSetBoolArg("-listen", false)) + LogPrintf("%s: parameter interaction: -proxy set -> setting -listen=0\n", __func__); + // to protect privacy, do not use UPNP when a proxy is set. The user may still specify -listen=1 + // to listen locally, so don't rely on this happening through -listen below. + if (gArgs.SoftSetBoolArg("-upnp", false)) + LogPrintf("%s: parameter interaction: -proxy set -> setting -upnp=0\n", __func__); + // to protect privacy, do not discover addresses by default + if (gArgs.SoftSetBoolArg("-discover", false)) + LogPrintf("%s: parameter interaction: -proxy set -> setting -discover=0\n", __func__); + } + + if (!gArgs.GetBoolArg("-listen", DEFAULT_LISTEN)) { + // do not map ports or try to retrieve public IP when not listening (pointless) + if (gArgs.SoftSetBoolArg("-upnp", false)) + LogPrintf("%s: parameter interaction: -listen=0 -> setting -upnp=0\n", __func__); + if (gArgs.SoftSetBoolArg("-discover", false)) + LogPrintf("%s: parameter interaction: -listen=0 -> setting -discover=0\n", __func__); + if (gArgs.SoftSetBoolArg("-listenonion", false)) + LogPrintf("%s: parameter interaction: -listen=0 -> setting -listenonion=0\n", __func__); + } + + if (gArgs.IsArgSet("-externalip")) { + // if an explicit public IP is specified, do not try to find others + if (gArgs.SoftSetBoolArg("-discover", false)) + LogPrintf("%s: parameter interaction: -externalip set -> setting -discover=0\n", __func__); + } + + // disable whitelistrelay in blocksonly mode + if (gArgs.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY)) { + if (gArgs.SoftSetBoolArg("-whitelistrelay", false)) + LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistrelay=0\n", __func__); + } + + // Forcing relay from whitelisted hosts implies we will accept relays from them in the first place. + if (gArgs.GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) { + if (gArgs.SoftSetBoolArg("-whitelistrelay", true)) + LogPrintf("%s: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1\n", __func__); + } + + if (gArgs.IsArgSet("-blockmaxsize")) { + unsigned int max_size = gArgs.GetArg("-blockmaxsize", 0); + if (gArgs.SoftSetArg("blockmaxweight", strprintf("%d", max_size * WITNESS_SCALE_FACTOR))) { + LogPrintf("%s: parameter interaction: -blockmaxsize=%d -> setting -blockmaxweight=%d (-blockmaxsize is deprecated!)\n", __func__, max_size, max_size * WITNESS_SCALE_FACTOR); + } else { + LogPrintf("%s: Ignoring blockmaxsize setting which is overridden by blockmaxweight", __func__); + } + } +} + +static std::string ResolveErrMsg(const char * const optname, const std::string& strBind) +{ + return strprintf(_("Cannot resolve -%s address: '%s'"), optname, strBind); +} + +void InitLogging() +{ + fPrintToConsole = gArgs.GetBoolArg("-printtoconsole", false); + fLogTimestamps = gArgs.GetBoolArg("-logtimestamps", DEFAULT_LOGTIMESTAMPS); + fLogTimeMicros = gArgs.GetBoolArg("-logtimemicros", DEFAULT_LOGTIMEMICROS); + fLogIPs = gArgs.GetBoolArg("-logips", DEFAULT_LOGIPS); + + LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"); + std::string version_string = FormatFullVersion(); +#ifdef DEBUG + version_string += " (debug build)"; +#else + version_string += " (release build)"; +#endif + LogPrintf(PACKAGE_NAME " version %s\n", version_string); +} + +namespace { // Variables internal to initialization process only + +int nMaxConnections; +int nUserMaxConnections; +int nFD; +ServiceFlags nLocalServices = ServiceFlags(NODE_NETWORK | NODE_NETWORK_LIMITED); + +} // namespace + +[[noreturn]] static void new_handler_terminate() +{ + // Rather than throwing std::bad-alloc if allocation fails, terminate + // immediately to (try to) avoid chain corruption. + // Since LogPrintf may itself allocate memory, set the handler directly + // to terminate first. + std::set_new_handler(std::terminate); + LogPrintf("Error: Out of memory. Terminating.\n"); + + // The log was successful, terminate now. + std::terminate(); +}; + +bool AppInitBasicSetup() { // ********************************************************* Step 1: setup #ifdef _MSC_VER // Turn off Microsoft heap dump noise _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE); - _CrtSetReportFile(_CRT_WARN, CreateFileA("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0)); -#endif -#if _MSC_VER >= 1400 + _CrtSetReportFile(_CRT_WARN, CreateFileA("NUL", GENERIC_WRITE, 0, nullptr, OPEN_EXISTING, 0, 0)); // Disable confusing "helpful" text message on abort, Ctrl-C _set_abort_behavior(0, _WRITE_ABORT_MSG | _CALL_REPORTFAULT); #endif @@ -502,248 +870,373 @@ bool AppInit2(boost::thread_group& threadGroup) #endif typedef BOOL (WINAPI *PSETPROCDEPPOL)(DWORD); PSETPROCDEPPOL setProcDEPPol = (PSETPROCDEPPOL)GetProcAddress(GetModuleHandleA("Kernel32.dll"), "SetProcessDEPPolicy"); - if (setProcDEPPol != NULL) setProcDEPPol(PROCESS_DEP_ENABLE); - - // Initialize Windows Sockets - WSADATA wsadata; - int ret = WSAStartup(MAKEWORD(2,2), &wsadata); - if (ret != NO_ERROR || LOBYTE(wsadata.wVersion ) != 2 || HIBYTE(wsadata.wVersion) != 2) - { - return InitError(strprintf("Error: Winsock library failed to start (WSAStartup returned error %d)", ret)); - } + if (setProcDEPPol != nullptr) setProcDEPPol(PROCESS_DEP_ENABLE); #endif -#ifndef WIN32 - if (GetBoolArg("-sysperms", false)) { -#ifdef ENABLE_WALLET - if (!GetBoolArg("-disablewallet", false)) - return InitError("Error: -sysperms is not allowed in combination with enabled wallet functionality"); -#endif - } else { + if (!SetupNetworking()) + return InitError("Initializing networking failed"); + +#ifndef WIN32 + if (!gArgs.GetBoolArg("-sysperms", false)) { umask(077); } // Clean shutdown on SIGTERM - struct sigaction sa; - sa.sa_handler = HandleSIGTERM; - sigemptyset(&sa.sa_mask); - sa.sa_flags = 0; - sigaction(SIGTERM, &sa, NULL); - sigaction(SIGINT, &sa, NULL); + registerSignalHandler(SIGTERM, HandleSIGTERM); + registerSignalHandler(SIGINT, HandleSIGTERM); // Reopen debug.log on SIGHUP - struct sigaction sa_hup; - sa_hup.sa_handler = HandleSIGHUP; - sigemptyset(&sa_hup.sa_mask); - sa_hup.sa_flags = 0; - sigaction(SIGHUP, &sa_hup, NULL); - -#if defined (__SVR4) && defined (__sun) - // ignore SIGPIPE on Solaris + registerSignalHandler(SIGHUP, HandleSIGHUP); + + // Ignore SIGPIPE, otherwise it will bring the daemon down if the client closes unexpectedly signal(SIGPIPE, SIG_IGN); #endif -#endif - // ********************************************************* Step 2: parameter interactions - // Set this early so that parameter interactions go to console - fPrintToConsole = GetBoolArg("-printtoconsole", false); - fLogTimestamps = GetBoolArg("-logtimestamps", true); - fLogIPs = GetBoolArg("-logips", false); - - if (mapArgs.count("-bind") || mapArgs.count("-whitebind")) { - // when specifying an explicit binding address, you want to listen on it - // even when -connect or -proxy is specified - if (SoftSetBoolArg("-listen", true)) - LogPrintf("AppInit2 : parameter interaction: -bind or -whitebind set -> setting -listen=1\n"); - } + std::set_new_handler(new_handler_terminate); - if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0) { - // when only connecting to trusted nodes, do not seed via DNS, or listen by default - if (SoftSetBoolArg("-dnsseed", false)) - LogPrintf("AppInit2 : parameter interaction: -connect set -> setting -dnsseed=0\n"); - if (SoftSetBoolArg("-listen", false)) - LogPrintf("AppInit2 : parameter interaction: -connect set -> setting -listen=0\n"); - } - - if (mapArgs.count("-proxy")) { - // to protect privacy, do not listen by default if a default proxy server is specified - if (SoftSetBoolArg("-listen", false)) - LogPrintf("AppInit2 : parameter interaction: -proxy set -> setting -listen=0\n"); - // to protect privacy, do not discover addresses by default - if (SoftSetBoolArg("-discover", false)) - LogPrintf("AppInit2 : parameter interaction: -proxy set -> setting -discover=0\n"); - } + return true; +} - if (!GetBoolArg("-listen", true)) { - // do not map ports or try to retrieve public IP when not listening (pointless) - if (SoftSetBoolArg("-upnp", false)) - LogPrintf("AppInit2 : parameter interaction: -listen=0 -> setting -upnp=0\n"); - if (SoftSetBoolArg("-discover", false)) - LogPrintf("AppInit2 : parameter interaction: -listen=0 -> setting -discover=0\n"); - } +bool AppInitParameterInteraction() +{ + const CChainParams& chainparams = Params(); + // ********************************************************* Step 2: parameter interactions - if (mapArgs.count("-externalip")) { - // if an explicit public IP is specified, do not try to find others - if (SoftSetBoolArg("-discover", false)) - LogPrintf("AppInit2 : parameter interaction: -externalip set -> setting -discover=0\n"); - } + // also see: InitParameterInteraction() - if (GetBoolArg("-salvagewallet", false)) { - // Rewrite just private keys: rescan to find transactions - if (SoftSetBoolArg("-rescan", true)) - LogPrintf("AppInit2 : parameter interaction: -salvagewallet=1 -> setting -rescan=1\n"); + // if using block pruning, then disallow txindex + if (gArgs.GetArg("-prune", 0)) { + if (gArgs.GetBoolArg("-txindex", DEFAULT_TXINDEX)) + return InitError(_("Prune mode is incompatible with -txindex.")); } - // -zapwallettx implies a rescan - if (GetBoolArg("-zapwallettxes", false)) { - if (SoftSetBoolArg("-rescan", true)) - LogPrintf("AppInit2 : parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n"); + // -bind and -whitebind can't be set when not listening + size_t nUserBind = gArgs.GetArgs("-bind").size() + gArgs.GetArgs("-whitebind").size(); + if (nUserBind != 0 && !gArgs.GetBoolArg("-listen", DEFAULT_LISTEN)) { + return InitError("Cannot set -bind or -whitebind together with -listen=0"); } // Make sure enough file descriptors are available - int nBind = std::max((int)mapArgs.count("-bind") + (int)mapArgs.count("-whitebind"), 1); - nMaxConnections = GetArg("-maxconnections", 125); - nMaxConnections = std::max(std::min(nMaxConnections, (int)(FD_SETSIZE - nBind - MIN_CORE_FILEDESCRIPTORS)), 0); - int nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS); + int nBind = std::max(nUserBind, size_t(1)); + nUserMaxConnections = gArgs.GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS); + nMaxConnections = std::max(nUserMaxConnections, 0); + + // Trim requested connection counts, to fit into system limitations + nMaxConnections = std::max(std::min(nMaxConnections, (int)(FD_SETSIZE - nBind - MIN_CORE_FILEDESCRIPTORS - MAX_ADDNODE_CONNECTIONS)), 0); + nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS + MAX_ADDNODE_CONNECTIONS); if (nFD < MIN_CORE_FILEDESCRIPTORS) return InitError(_("Not enough file descriptors available.")); - if (nFD - MIN_CORE_FILEDESCRIPTORS < nMaxConnections) - nMaxConnections = nFD - MIN_CORE_FILEDESCRIPTORS; + nMaxConnections = std::min(nFD - MIN_CORE_FILEDESCRIPTORS - MAX_ADDNODE_CONNECTIONS, nMaxConnections); + + if (nMaxConnections < nUserMaxConnections) + InitWarning(strprintf(_("Reducing -maxconnections from %d to %d, because of system limitations."), nUserMaxConnections, nMaxConnections)); // ********************************************************* Step 3: parameter-to-internal-flags + if (gArgs.IsArgSet("-debug")) { + // Special-case: if -debug=0/-nodebug is set, turn off debugging messages + const std::vector<std::string> categories = gArgs.GetArgs("-debug"); + + if (std::none_of(categories.begin(), categories.end(), + [](std::string cat){return cat == "0" || cat == "none";})) { + for (const auto& cat : categories) { + uint32_t flag = 0; + if (!GetLogCategory(&flag, &cat)) { + InitWarning(strprintf(_("Unsupported logging category %s=%s."), "-debug", cat)); + continue; + } + logCategories |= flag; + } + } + } - fDebug = !mapMultiArgs["-debug"].empty(); - // Special-case: if -debug=0/-nodebug is set, turn off debugging messages - const vector<string>& categories = mapMultiArgs["-debug"]; - if (GetBoolArg("-nodebug", false) || find(categories.begin(), categories.end(), string("0")) != categories.end()) - fDebug = false; + // Now remove the logging categories which were explicitly excluded + for (const std::string& cat : gArgs.GetArgs("-debugexclude")) { + uint32_t flag = 0; + if (!GetLogCategory(&flag, &cat)) { + InitWarning(strprintf(_("Unsupported logging category %s=%s."), "-debugexclude", cat)); + continue; + } + logCategories &= ~flag; + } // Check for -debugnet - if (GetBoolArg("-debugnet", false)) - InitWarning(_("Warning: Unsupported argument -debugnet ignored, use -debug=net.")); + if (gArgs.GetBoolArg("-debugnet", false)) + InitWarning(_("Unsupported argument -debugnet ignored, use -debug=net.")); // Check for -socks - as this is a privacy risk to continue, exit here - if (mapArgs.count("-socks")) - return InitError(_("Error: Unsupported argument -socks found. Setting SOCKS version isn't possible anymore, only SOCKS5 proxies are supported.")); + if (gArgs.IsArgSet("-socks")) + return InitError(_("Unsupported argument -socks found. Setting SOCKS version isn't possible anymore, only SOCKS5 proxies are supported.")); // Check for -tor - as this is a privacy risk to continue, exit here - if (GetBoolArg("-tor", false)) - return InitError(_("Error: Unsupported argument -tor found, use -onion.")); + if (gArgs.GetBoolArg("-tor", false)) + return InitError(_("Unsupported argument -tor found, use -onion.")); + + if (gArgs.GetBoolArg("-benchmark", false)) + InitWarning(_("Unsupported argument -benchmark ignored, use -debug=bench.")); - if (GetBoolArg("-benchmark", false)) - InitWarning(_("Warning: Unsupported argument -benchmark ignored, use -debug=bench.")); + if (gArgs.GetBoolArg("-whitelistalwaysrelay", false)) + InitWarning(_("Unsupported argument -whitelistalwaysrelay ignored, use -whitelistrelay and/or -whitelistforcerelay.")); - // Checkmempool defaults to true in regtest mode - mempool.setSanityCheck(GetBoolArg("-checkmempool", Params().DefaultCheckMemPool())); - Checkpoints::fEnabled = GetBoolArg("-checkpoints", true); + if (gArgs.IsArgSet("-blockminsize")) + InitWarning("Unsupported argument -blockminsize ignored."); + + // Checkmempool and checkblockindex default to true in regtest mode + int ratio = std::min<int>(std::max<int>(gArgs.GetArg("-checkmempool", chainparams.DefaultConsistencyChecks() ? 1 : 0), 0), 1000000); + if (ratio != 0) { + mempool.setSanityCheck(1.0 / ratio); + } + fCheckBlockIndex = gArgs.GetBoolArg("-checkblockindex", chainparams.DefaultConsistencyChecks()); + fCheckpointsEnabled = gArgs.GetBoolArg("-checkpoints", DEFAULT_CHECKPOINTS_ENABLED); + + hashAssumeValid = uint256S(gArgs.GetArg("-assumevalid", chainparams.GetConsensus().defaultAssumeValid.GetHex())); + if (!hashAssumeValid.IsNull()) + LogPrintf("Assuming ancestors of block %s have valid signatures.\n", hashAssumeValid.GetHex()); + else + LogPrintf("Validating signatures for all blocks.\n"); + + if (gArgs.IsArgSet("-minimumchainwork")) { + const std::string minChainWorkStr = gArgs.GetArg("-minimumchainwork", ""); + if (!IsHexNumber(minChainWorkStr)) { + return InitError(strprintf("Invalid non-hex (%s) minimum chain work value specified", minChainWorkStr)); + } + nMinimumChainWork = UintToArith256(uint256S(minChainWorkStr)); + } else { + nMinimumChainWork = UintToArith256(chainparams.GetConsensus().nMinimumChainWork); + } + LogPrintf("Setting nMinimumChainWork=%s\n", nMinimumChainWork.GetHex()); + if (nMinimumChainWork < UintToArith256(chainparams.GetConsensus().nMinimumChainWork)) { + LogPrintf("Warning: nMinimumChainWork set below default value of %s\n", chainparams.GetConsensus().nMinimumChainWork.GetHex()); + } + + // mempool limits + int64_t nMempoolSizeMax = gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000; + int64_t nMempoolSizeMin = gArgs.GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT) * 1000 * 40; + if (nMempoolSizeMax < 0 || nMempoolSizeMax < nMempoolSizeMin) + return InitError(strprintf(_("-maxmempool must be at least %d MB"), std::ceil(nMempoolSizeMin / 1000000.0))); + // incremental relay fee sets the minimum feerate increase necessary for BIP 125 replacement in the mempool + // and the amount the mempool min fee increases above the feerate of txs evicted due to mempool limiting. + if (gArgs.IsArgSet("-incrementalrelayfee")) + { + CAmount n = 0; + if (!ParseMoney(gArgs.GetArg("-incrementalrelayfee", ""), n)) + return InitError(AmountErrMsg("incrementalrelayfee", gArgs.GetArg("-incrementalrelayfee", ""))); + incrementalRelayFee = CFeeRate(n); + } // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency - nScriptCheckThreads = GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS); + nScriptCheckThreads = gArgs.GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS); if (nScriptCheckThreads <= 0) - nScriptCheckThreads += boost::thread::hardware_concurrency(); + nScriptCheckThreads += GetNumCores(); if (nScriptCheckThreads <= 1) nScriptCheckThreads = 0; else if (nScriptCheckThreads > MAX_SCRIPTCHECK_THREADS) nScriptCheckThreads = MAX_SCRIPTCHECK_THREADS; - fServer = GetBoolArg("-server", false); -#ifdef ENABLE_WALLET - bool fDisableWallet = GetBoolArg("-disablewallet", false); -#endif + // block pruning; get the amount of disk space (in MiB) to allot for block & undo files + int64_t nPruneArg = gArgs.GetArg("-prune", 0); + if (nPruneArg < 0) { + return InitError(_("Prune cannot be configured with a negative value.")); + } + nPruneTarget = (uint64_t) nPruneArg * 1024 * 1024; + if (nPruneArg == 1) { // manual pruning: -prune=1 + LogPrintf("Block pruning enabled. Use RPC call pruneblockchain(height) to manually prune block and undo files.\n"); + nPruneTarget = std::numeric_limits<uint64_t>::max(); + fPruneMode = true; + } else if (nPruneTarget) { + if (nPruneTarget < MIN_DISK_SPACE_FOR_BLOCK_FILES) { + return InitError(strprintf(_("Prune configured below the minimum of %d MiB. Please use a higher number."), MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024)); + } + LogPrintf("Prune configured to target %uMiB on disk for block and undo files.\n", nPruneTarget / 1024 / 1024); + fPruneMode = true; + } - nConnectTimeout = GetArg("-timeout", DEFAULT_CONNECT_TIMEOUT); + nConnectTimeout = gArgs.GetArg("-timeout", DEFAULT_CONNECT_TIMEOUT); if (nConnectTimeout <= 0) nConnectTimeout = DEFAULT_CONNECT_TIMEOUT; - // Continue to put "/P2SH/" in the coinbase to monitor - // BIP16 support. - // This can be removed eventually... - const char* pszP2SH = "/P2SH/"; - COINBASE_FLAGS << std::vector<unsigned char>(pszP2SH, pszP2SH+strlen(pszP2SH)); - - // Fee-per-kilobyte amount considered the same as "free" - // If you are mining, be careful setting this: - // if you set it to zero then - // a transaction spammer can cheaply fill blocks using - // 1-satoshi-fee transactions. It should be set above the real - // cost to you of processing a transaction. - if (mapArgs.count("-minrelaytxfee")) - { + if (gArgs.IsArgSet("-minrelaytxfee")) { CAmount n = 0; - if (ParseMoney(mapArgs["-minrelaytxfee"], n) && n > 0) - ::minRelayTxFee = CFeeRate(n); - else - return InitError(strprintf(_("Invalid amount for -minrelaytxfee=<amount>: '%s'"), mapArgs["-minrelaytxfee"])); + if (!ParseMoney(gArgs.GetArg("-minrelaytxfee", ""), n)) { + return InitError(AmountErrMsg("minrelaytxfee", gArgs.GetArg("-minrelaytxfee", ""))); + } + // High fee check is done afterward in WalletParameterInteraction() + ::minRelayTxFee = CFeeRate(n); + } else if (incrementalRelayFee > ::minRelayTxFee) { + // Allow only setting incrementalRelayFee to control both + ::minRelayTxFee = incrementalRelayFee; + LogPrintf("Increasing minrelaytxfee to %s to match incrementalrelayfee\n",::minRelayTxFee.ToString()); } -#ifdef ENABLE_WALLET - if (mapArgs.count("-mintxfee")) + // Sanity check argument for min fee for including tx in block + // TODO: Harmonize which arguments need sanity checking and where that happens + if (gArgs.IsArgSet("-blockmintxfee")) { CAmount n = 0; - if (ParseMoney(mapArgs["-mintxfee"], n) && n > 0) - CWallet::minTxFee = CFeeRate(n); - else - return InitError(strprintf(_("Invalid amount for -mintxfee=<amount>: '%s'"), mapArgs["-mintxfee"])); + if (!ParseMoney(gArgs.GetArg("-blockmintxfee", ""), n)) + return InitError(AmountErrMsg("blockmintxfee", gArgs.GetArg("-blockmintxfee", ""))); } - if (mapArgs.count("-paytxfee")) + + // Feerate used to define dust. Shouldn't be changed lightly as old + // implementations may inadvertently create non-standard transactions + if (gArgs.IsArgSet("-dustrelayfee")) { - CAmount nFeePerK = 0; - if (!ParseMoney(mapArgs["-paytxfee"], nFeePerK)) - return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%s'"), mapArgs["-paytxfee"])); - if (nFeePerK > nHighTransactionFeeWarning) - InitWarning(_("Warning: -paytxfee is set very high! This is the transaction fee you will pay if you send a transaction.")); - payTxFee = CFeeRate(nFeePerK, 1000); - if (payTxFee < ::minRelayTxFee) - { - return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%s' (must be at least %s)"), - mapArgs["-paytxfee"], ::minRelayTxFee.ToString())); + CAmount n = 0; + if (!ParseMoney(gArgs.GetArg("-dustrelayfee", ""), n) || 0 == n) + return InitError(AmountErrMsg("dustrelayfee", gArgs.GetArg("-dustrelayfee", ""))); + dustRelayFee = CFeeRate(n); + } + + fRequireStandard = !gArgs.GetBoolArg("-acceptnonstdtxn", !chainparams.RequireStandard()); + if (chainparams.RequireStandard() && !fRequireStandard) + return InitError(strprintf("acceptnonstdtxn is not currently supported for %s chain", chainparams.NetworkIDString())); + nBytesPerSigOp = gArgs.GetArg("-bytespersigop", nBytesPerSigOp); + +#ifdef ENABLE_WALLET + if (!WalletParameterInteraction()) + return false; +#endif + + fIsBareMultisigStd = gArgs.GetBoolArg("-permitbaremultisig", DEFAULT_PERMIT_BAREMULTISIG); + fAcceptDatacarrier = gArgs.GetBoolArg("-datacarrier", DEFAULT_ACCEPT_DATACARRIER); + nMaxDatacarrierBytes = gArgs.GetArg("-datacarriersize", nMaxDatacarrierBytes); + + // Option to startup with mocktime set (used for regression testing): + SetMockTime(gArgs.GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op + + if (gArgs.GetBoolArg("-peerbloomfilters", DEFAULT_PEERBLOOMFILTERS)) + nLocalServices = ServiceFlags(nLocalServices | NODE_BLOOM); + + if (gArgs.GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) < 0) + return InitError("rpcserialversion must be non-negative."); + + if (gArgs.GetArg("-rpcserialversion", DEFAULT_RPC_SERIALIZE_VERSION) > 1) + return InitError("unknown rpcserialversion requested."); + + nMaxTipAge = gArgs.GetArg("-maxtipage", DEFAULT_MAX_TIP_AGE); + + fEnableReplacement = gArgs.GetBoolArg("-mempoolreplacement", DEFAULT_ENABLE_REPLACEMENT); + if ((!fEnableReplacement) && gArgs.IsArgSet("-mempoolreplacement")) { + // Minimal effort at forwards compatibility + std::string strReplacementModeList = gArgs.GetArg("-mempoolreplacement", ""); // default is impossible + std::vector<std::string> vstrReplacementModes; + boost::split(vstrReplacementModes, strReplacementModeList, boost::is_any_of(",")); + fEnableReplacement = (std::find(vstrReplacementModes.begin(), vstrReplacementModes.end(), "fee") != vstrReplacementModes.end()); + } + + if (gArgs.IsArgSet("-vbparams")) { + // Allow overriding version bits parameters for testing + if (!chainparams.MineBlocksOnDemand()) { + return InitError("Version bits parameters may only be overridden on regtest."); + } + for (const std::string& strDeployment : gArgs.GetArgs("-vbparams")) { + std::vector<std::string> vDeploymentParams; + boost::split(vDeploymentParams, strDeployment, boost::is_any_of(":")); + if (vDeploymentParams.size() != 3) { + return InitError("Version bits parameters malformed, expecting deployment:start:end"); + } + int64_t nStartTime, nTimeout; + if (!ParseInt64(vDeploymentParams[1], &nStartTime)) { + return InitError(strprintf("Invalid nStartTime (%s)", vDeploymentParams[1])); + } + if (!ParseInt64(vDeploymentParams[2], &nTimeout)) { + return InitError(strprintf("Invalid nTimeout (%s)", vDeploymentParams[2])); + } + bool found = false; + for (int j=0; j<(int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) + { + if (vDeploymentParams[0].compare(VersionBitsDeploymentInfo[j].name) == 0) { + UpdateVersionBitsParameters(Consensus::DeploymentPos(j), nStartTime, nTimeout); + found = true; + LogPrintf("Setting version bits activation parameters for %s to start=%ld, timeout=%ld\n", vDeploymentParams[0], nStartTime, nTimeout); + break; + } + } + if (!found) { + return InitError(strprintf("Invalid deployment (%s)", vDeploymentParams[0])); + } } } - nTxConfirmTarget = GetArg("-txconfirmtarget", 1); - bSpendZeroConfChange = GetArg("-spendzeroconfchange", true); - fSendFreeTransactions = GetArg("-sendfreetransactions", false); + return true; +} - std::string strWalletFile = GetArg("-wallet", "wallet.dat"); -#endif // ENABLE_WALLET +static bool LockDataDirectory(bool probeOnly) +{ + // Make sure only a single Bitcoin process is using the data directory. + fs::path datadir = GetDataDir(); + if (!LockDirectory(datadir, ".lock", probeOnly)) { + return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running."), datadir.string(), _(PACKAGE_NAME))); + } + return true; +} - fIsBareMultisigStd = GetArg("-permitbaremultisig", true) != 0; - nMaxDatacarrierBytes = GetArg("-datacarriersize", nMaxDatacarrierBytes); +bool AppInitSanityChecks() +{ + // ********************************************************* Step 4: sanity checks - // ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log + // Initialize elliptic curve code + std::string sha256_algo = SHA256AutoDetect(); + LogPrintf("Using the '%s' SHA256 implementation\n", sha256_algo); + RandomInit(); + ECC_Start(); + globalVerifyHandle.reset(new ECCVerifyHandle()); // Sanity check if (!InitSanityCheck()) - return InitError(_("Initialization sanity check failed. Bitcoin Core is shutting down.")); + return InitError(strprintf(_("Initialization sanity check failed. %s is shutting down."), _(PACKAGE_NAME))); - std::string strDataDir = GetDataDir().string(); -#ifdef ENABLE_WALLET - // Wallet file must be a plain filename without a directory - if (strWalletFile != boost::filesystem::basename(strWalletFile) + boost::filesystem::extension(strWalletFile)) - return InitError(strprintf(_("Wallet %s resides outside data directory %s"), strWalletFile, strDataDir)); -#endif - // Make sure only a single Bitcoin process is using the data directory. - boost::filesystem::path pathLockFile = GetDataDir() / ".lock"; - FILE* file = fopen(pathLockFile.string().c_str(), "a"); // empty lock file; created if it doesn't exist. - if (file) fclose(file); - static boost::interprocess::file_lock lock(pathLockFile.string().c_str()); - if (!lock.try_lock()) - return InitError(strprintf(_("Cannot obtain a lock on data directory %s. Bitcoin Core is probably already running."), strDataDir)); + // Probe the data directory lock to give an early error message, if possible + // We cannot hold the data directory lock here, as the forking for daemon() hasn't yet happened, + // and a fork will cause weird behavior to it. + return LockDataDirectory(true); +} + +bool AppInitLockDataDirectory() +{ + // After daemonization get the data directory lock again and hold on to it until exit + // This creates a slight window for a race condition to happen, however this condition is harmless: it + // will at most make us exit without printing a message to console. + if (!LockDataDirectory(false)) { + // Detailed error printed inside LockDataDirectory + return false; + } + return true; +} + +bool AppInitMain() +{ + const CChainParams& chainparams = Params(); + // ********************************************************* Step 4a: application initialization #ifndef WIN32 CreatePidFile(GetPidFile(), getpid()); #endif - if (GetBoolArg("-shrinkdebugfile", !fDebug)) + if (gArgs.GetBoolArg("-shrinkdebugfile", logCategories == BCLog::NONE)) { + // Do this first since it both loads a bunch of debug.log into memory, + // and because this needs to happen before any other debug.log printing ShrinkDebugFile(); - LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"); - LogPrintf("Bitcoin version %s (%s)\n", FormatFullVersion(), CLIENT_DATE); - LogPrintf("Using OpenSSL version %s\n", SSLeay_version(SSLEAY_VERSION)); -#ifdef ENABLE_WALLET - LogPrintf("Using BerkeleyDB version %s\n", DbEnv::version(0, 0, 0)); -#endif + } + + if (fPrintToDebugLog) { + if (!OpenDebugLog()) { + return InitError(strprintf("Could not open debug log file %s", GetDebugLogPath().string())); + } + } + if (!fLogTimestamps) LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime())); LogPrintf("Default data directory %s\n", GetDefaultDataDir().string()); - LogPrintf("Using data directory %s\n", strDataDir); - LogPrintf("Using config file %s\n", GetConfigFile().string()); - LogPrintf("Using at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD); - std::ostringstream strErrors; + LogPrintf("Using data directory %s\n", GetDataDir().string()); + LogPrintf("Using config file %s\n", GetConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME)).string()); + LogPrintf("Using at most %i automatic connections (%i file descriptors available)\n", nMaxConnections, nFD); + + // Warn about relative -datadir path. + if (gArgs.IsArgSet("-datadir") && !fs::path(gArgs.GetArg("-datadir", "")).is_absolute()) { + LogPrintf("Warning: relative datadir option '%s' specified, which will be interpreted relative to the " + "current working directory '%s'. This is fragile, because if bitcoin is started in the future " + "from a different location, it will be unable to locate the current data files. There could " + "also be data loss if bitcoin is started while in a temporary directory.\n", + gArgs.GetArg("-datadir", ""), fs::current_path().string()); + } + + InitSignatureCache(); + InitScriptExecutionCache(); LogPrintf("Using %u threads for script verification\n", nScriptCheckThreads); if (nScriptCheckThreads) { @@ -751,75 +1244,69 @@ bool AppInit2(boost::thread_group& threadGroup) threadGroup.create_thread(&ThreadScriptCheck); } + // Start the lightweight task scheduler thread + CScheduler::Function serviceLoop = boost::bind(&CScheduler::serviceQueue, &scheduler); + threadGroup.create_thread(boost::bind(&TraceThread<CScheduler::Function>, "scheduler", serviceLoop)); + + GetMainSignals().RegisterBackgroundSignalScheduler(scheduler); + GetMainSignals().RegisterWithMempoolSignals(mempool); + + /* Register RPC commands regardless of -server setting so they will be + * available in the GUI RPC console even if external calls are disabled. + */ + RegisterAllCoreRPCCommands(tableRPC); +#ifdef ENABLE_WALLET + RegisterWalletRPC(tableRPC); +#endif + /* Start the RPC server already. It will be started in "warmup" mode * and not really process calls already (but it will signify connections * that the server is there and will be ready later). Warmup mode will * be disabled when initialisation is finished. */ - if (fServer) + if (gArgs.GetBoolArg("-server", false)) { uiInterface.InitMessage.connect(SetRPCWarmupStatus); - StartRPCThreads(); + if (!AppInitServers()) + return InitError(_("Unable to start HTTP server. See debug log for details.")); } int64_t nStart; // ********************************************************* Step 5: verify wallet database integrity #ifdef ENABLE_WALLET - if (!fDisableWallet) { - LogPrintf("Using wallet %s\n", strWalletFile); - uiInterface.InitMessage(_("Verifying wallet...")); - - if (!bitdb.Open(GetDataDir())) - { - // try moving the database env out of the way - boost::filesystem::path pathDatabase = GetDataDir() / "database"; - boost::filesystem::path pathDatabaseBak = GetDataDir() / strprintf("database.%d.bak", GetTime()); - try { - boost::filesystem::rename(pathDatabase, pathDatabaseBak); - LogPrintf("Moved old %s to %s. Retrying.\n", pathDatabase.string(), pathDatabaseBak.string()); - } catch(boost::filesystem::filesystem_error &error) { - // failure is ok (well, not really, but it's not worse than what we started with) - } - - // try again - if (!bitdb.Open(GetDataDir())) { - // if it still fails, it probably means we can't even create the database env - string msg = strprintf(_("Error initializing wallet database environment %s!"), strDataDir); - return InitError(msg); - } - } - - if (GetBoolArg("-salvagewallet", false)) - { - // Recover readable keypairs: - if (!CWalletDB::Recover(bitdb, strWalletFile, true)) - return false; - } - - if (filesystem::exists(GetDataDir() / strWalletFile)) - { - CDBEnv::VerifyResult r = bitdb.Verify(strWalletFile, CWalletDB::Recover); - if (r == CDBEnv::RECOVER_OK) - { - string msg = strprintf(_("Warning: wallet.dat corrupt, data salvaged!" - " Original wallet.dat saved as wallet.{timestamp}.bak in %s; if" - " your balance or transactions are incorrect you should" - " restore from a backup."), strDataDir); - InitWarning(msg); - } - if (r == CDBEnv::RECOVER_FAIL) - return InitError(_("wallet.dat corrupt, salvage failed")); - } - } // (!fDisableWallet) -#endif // ENABLE_WALLET + if (!VerifyWallets()) + return false; +#endif // ********************************************************* Step 6: network initialization + // Note that we absolutely cannot open any actual connections + // until the very end ("start node") as the UTXO/block state + // is not yet setup and may end up being set up twice if we + // need to reindex later. + + assert(!g_connman); + g_connman = std::unique_ptr<CConnman>(new CConnman(GetRand(std::numeric_limits<uint64_t>::max()), GetRand(std::numeric_limits<uint64_t>::max()))); + CConnman& connman = *g_connman; + + peerLogic.reset(new PeerLogicValidation(&connman, scheduler)); + RegisterValidationInterface(peerLogic.get()); + + // sanitize comments per BIP-0014, format user agent and check total size + std::vector<std::string> uacomments; + for (const std::string& cmt : gArgs.GetArgs("-uacomment")) { + if (cmt != SanitizeString(cmt, SAFE_CHARS_UA_COMMENT)) + return InitError(strprintf(_("User Agent comment (%s) contains unsafe characters."), cmt)); + uacomments.push_back(cmt); + } + strSubVersion = FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, uacomments); + if (strSubVersion.size() > MAX_SUBVERSION_LENGTH) { + return InitError(strprintf(_("Total length of network version string (%i) exceeds maximum length (%i). Reduce the number or size of uacomments."), + strSubVersion.size(), MAX_SUBVERSION_LENGTH)); + } - RegisterNodeSignals(GetNodeSignals()); - - if (mapArgs.count("-onlynet")) { + if (gArgs.IsArgSet("-onlynet")) { std::set<enum Network> nets; - BOOST_FOREACH(std::string snet, mapMultiArgs["-onlynet"]) { + for (const std::string& snet : gArgs.GetArgs("-onlynet")) { enum Network net = ParseNetwork(snet); if (net == NET_UNROUTABLE) return InitError(strprintf(_("Unknown network specified in -onlynet: '%s'"), snet)); @@ -832,134 +1319,102 @@ bool AppInit2(boost::thread_group& threadGroup) } } - if (mapArgs.count("-whitelist")) { - BOOST_FOREACH(const std::string& net, mapMultiArgs["-whitelist"]) { - CSubNet subnet(net); - if (!subnet.IsValid()) - return InitError(strprintf(_("Invalid netmask specified in -whitelist: '%s'"), net)); - CNode::AddWhitelistedRange(subnet); + // Check for host lookup allowed before parsing any network related parameters + fNameLookup = gArgs.GetBoolArg("-dns", DEFAULT_NAME_LOOKUP); + + bool proxyRandomize = gArgs.GetBoolArg("-proxyrandomize", DEFAULT_PROXYRANDOMIZE); + // -proxy sets a proxy for all outgoing network traffic + // -noproxy (or -proxy=0) as well as the empty string can be used to not set a proxy, this is the default + std::string proxyArg = gArgs.GetArg("-proxy", ""); + SetLimited(NET_TOR); + if (proxyArg != "" && proxyArg != "0") { + CService proxyAddr; + if (!Lookup(proxyArg.c_str(), proxyAddr, 9050, fNameLookup)) { + return InitError(strprintf(_("Invalid -proxy address or hostname: '%s'"), proxyArg)); } - } - CService addrProxy; - bool fProxy = false; - if (mapArgs.count("-proxy")) { - addrProxy = CService(mapArgs["-proxy"], 9050); + proxyType addrProxy = proxyType(proxyAddr, proxyRandomize); if (!addrProxy.IsValid()) - return InitError(strprintf(_("Invalid -proxy address: '%s'"), mapArgs["-proxy"])); + return InitError(strprintf(_("Invalid -proxy address or hostname: '%s'"), proxyArg)); SetProxy(NET_IPV4, addrProxy); SetProxy(NET_IPV6, addrProxy); + SetProxy(NET_TOR, addrProxy); SetNameProxy(addrProxy); - fProxy = true; + SetLimited(NET_TOR, false); // by default, -proxy sets onion as reachable, unless -noonion later } - // -onion can override normal proxy, -noonion disables tor entirely - if (!(mapArgs.count("-onion") && mapArgs["-onion"] == "0") && - (fProxy || mapArgs.count("-onion"))) { - CService addrOnion; - if (!mapArgs.count("-onion")) - addrOnion = addrProxy; - else - addrOnion = CService(mapArgs["-onion"], 9050); - if (!addrOnion.IsValid()) - return InitError(strprintf(_("Invalid -onion address: '%s'"), mapArgs["-onion"])); - SetProxy(NET_TOR, addrOnion); - SetReachable(NET_TOR); + // -onion can be used to set only a proxy for .onion, or override normal proxy for .onion addresses + // -noonion (or -onion=0) disables connecting to .onion entirely + // An empty string is used to not override the onion proxy (in which case it defaults to -proxy set above, or none) + std::string onionArg = gArgs.GetArg("-onion", ""); + if (onionArg != "") { + if (onionArg == "0") { // Handle -noonion/-onion=0 + SetLimited(NET_TOR); // set onions as unreachable + } else { + CService onionProxy; + if (!Lookup(onionArg.c_str(), onionProxy, 9050, fNameLookup)) { + return InitError(strprintf(_("Invalid -onion address or hostname: '%s'"), onionArg)); + } + proxyType addrOnion = proxyType(onionProxy, proxyRandomize); + if (!addrOnion.IsValid()) + return InitError(strprintf(_("Invalid -onion address or hostname: '%s'"), onionArg)); + SetProxy(NET_TOR, addrOnion); + SetLimited(NET_TOR, false); + } } // see Step 2: parameter interactions for more information about these - fListen = GetBoolArg("-listen", DEFAULT_LISTEN); - fDiscover = GetBoolArg("-discover", true); - fNameLookup = GetBoolArg("-dns", true); - - bool fBound = false; - if (fListen) { - if (mapArgs.count("-bind") || mapArgs.count("-whitebind")) { - BOOST_FOREACH(std::string strBind, mapMultiArgs["-bind"]) { - CService addrBind; - if (!Lookup(strBind.c_str(), addrBind, GetListenPort(), false)) - return InitError(strprintf(_("Cannot resolve -bind address: '%s'"), strBind)); - fBound |= Bind(addrBind, (BF_EXPLICIT | BF_REPORT_ERROR)); - } - BOOST_FOREACH(std::string strBind, mapMultiArgs["-whitebind"]) { - CService addrBind; - if (!Lookup(strBind.c_str(), addrBind, 0, false)) - return InitError(strprintf(_("Cannot resolve -whitebind address: '%s'"), strBind)); - if (addrBind.GetPort() == 0) - return InitError(strprintf(_("Need to specify a port with -whitebind: '%s'"), strBind)); - fBound |= Bind(addrBind, (BF_EXPLICIT | BF_REPORT_ERROR | BF_WHITELIST)); - } - } - else { - struct in_addr inaddr_any; - inaddr_any.s_addr = INADDR_ANY; - fBound |= Bind(CService(in6addr_any, GetListenPort()), BF_NONE); - fBound |= Bind(CService(inaddr_any, GetListenPort()), !fBound ? BF_REPORT_ERROR : BF_NONE); - } - if (!fBound) - return InitError(_("Failed to listen on any port. Use -listen=0 if you want this.")); + fListen = gArgs.GetBoolArg("-listen", DEFAULT_LISTEN); + fDiscover = gArgs.GetBoolArg("-discover", true); + fRelayTxes = !gArgs.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY); + + for (const std::string& strAddr : gArgs.GetArgs("-externalip")) { + CService addrLocal; + if (Lookup(strAddr.c_str(), addrLocal, GetListenPort(), fNameLookup) && addrLocal.IsValid()) + AddLocal(addrLocal, LOCAL_MANUAL); + else + return InitError(ResolveErrMsg("externalip", strAddr)); } - if (mapArgs.count("-externalip")) { - BOOST_FOREACH(string strAddr, mapMultiArgs["-externalip"]) { - CService addrLocal(strAddr, GetListenPort(), fNameLookup); - if (!addrLocal.IsValid()) - return InitError(strprintf(_("Cannot resolve -externalip address: '%s'"), strAddr)); - AddLocal(CService(strAddr, GetListenPort(), fNameLookup), LOCAL_MANUAL); - } +#if ENABLE_ZMQ + pzmqNotificationInterface = CZMQNotificationInterface::Create(); + + if (pzmqNotificationInterface) { + RegisterValidationInterface(pzmqNotificationInterface); } +#endif + uint64_t nMaxOutboundLimit = 0; //unlimited unless -maxuploadtarget is set + uint64_t nMaxOutboundTimeframe = MAX_UPLOAD_TIMEFRAME; - BOOST_FOREACH(string strDest, mapMultiArgs["-seednode"]) - AddOneShot(strDest); + if (gArgs.IsArgSet("-maxuploadtarget")) { + nMaxOutboundLimit = gArgs.GetArg("-maxuploadtarget", DEFAULT_MAX_UPLOAD_TARGET)*1024*1024; + } // ********************************************************* Step 7: load block chain - fReindex = GetBoolArg("-reindex", false); - - // Upgrading to 0.8; hard-link the old blknnnn.dat files into /blocks/ - filesystem::path blocksDir = GetDataDir() / "blocks"; - if (!filesystem::exists(blocksDir)) - { - filesystem::create_directories(blocksDir); - bool linked = false; - for (unsigned int i = 1; i < 10000; i++) { - filesystem::path source = GetDataDir() / strprintf("blk%04u.dat", i); - if (!filesystem::exists(source)) break; - filesystem::path dest = blocksDir / strprintf("blk%05u.dat", i-1); - try { - filesystem::create_hard_link(source, dest); - LogPrintf("Hardlinked %s -> %s\n", source.string(), dest.string()); - linked = true; - } catch (filesystem::filesystem_error & e) { - // Note: hardlink creation failing is not a disaster, it just means - // blocks will get re-downloaded from peers. - LogPrintf("Error hardlinking blk%04u.dat : %s\n", i, e.what()); - break; - } - } - if (linked) - { - fReindex = true; - } - } + fReindex = gArgs.GetBoolArg("-reindex", false); + bool fReindexChainState = gArgs.GetBoolArg("-reindex-chainstate", false); // cache size calculations - size_t nTotalCache = (GetArg("-dbcache", nDefaultDbCache) << 20); - if (nTotalCache < (nMinDbCache << 20)) - nTotalCache = (nMinDbCache << 20); // total cache cannot be less than nMinDbCache - else if (nTotalCache > (nMaxDbCache << 20)) - nTotalCache = (nMaxDbCache << 20); // total cache cannot be greater than nMaxDbCache - size_t nBlockTreeDBCache = nTotalCache / 8; - if (nBlockTreeDBCache > (1 << 21) && !GetBoolArg("-txindex", false)) - nBlockTreeDBCache = (1 << 21); // block tree db cache shouldn't be larger than 2 MiB + int64_t nTotalCache = (gArgs.GetArg("-dbcache", nDefaultDbCache) << 20); + nTotalCache = std::max(nTotalCache, nMinDbCache << 20); // total cache cannot be less than nMinDbCache + nTotalCache = std::min(nTotalCache, nMaxDbCache << 20); // total cache cannot be greater than nMaxDbcache + int64_t nBlockTreeDBCache = nTotalCache / 8; + nBlockTreeDBCache = std::min(nBlockTreeDBCache, (gArgs.GetBoolArg("-txindex", DEFAULT_TXINDEX) ? nMaxBlockDBAndTxIndexCache : nMaxBlockDBCache) << 20); nTotalCache -= nBlockTreeDBCache; - size_t nCoinDBCache = nTotalCache / 2; // use half of the remaining cache for coindb cache + int64_t nCoinDBCache = std::min(nTotalCache / 2, (nTotalCache / 4) + (1 << 23)); // use 25%-50% of the remainder for disk cache + nCoinDBCache = std::min(nCoinDBCache, nMaxCoinsDBCache << 20); // cap total coins db cache nTotalCache -= nCoinDBCache; - nCoinCacheSize = nTotalCache / 300; // coins in memory require around 300 bytes + nCoinCacheUsage = nTotalCache; // the rest goes to in-memory cache + int64_t nMempoolSizeMax = gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000; + LogPrintf("Cache configuration:\n"); + LogPrintf("* Using %.1fMiB for block index database\n", nBlockTreeDBCache * (1.0 / 1024 / 1024)); + LogPrintf("* Using %.1fMiB for chain state database\n", nCoinDBCache * (1.0 / 1024 / 1024)); + LogPrintf("* Using %.1fMiB for in-memory UTXO set (plus up to %.1fMiB of unused mempool space)\n", nCoinCacheUsage * (1.0 / 1024 / 1024), nMempoolSizeMax * (1.0 / 1024 / 1024)); bool fLoaded = false; - while (!fLoaded) { + while (!fLoaded && !fRequestShutdown) { bool fReset = fReindex; std::string strLoadError; @@ -969,47 +1424,130 @@ bool AppInit2(boost::thread_group& threadGroup) do { try { UnloadBlockIndex(); - delete pcoinsTip; - delete pcoinsdbview; - delete pblocktree; - - pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReindex); - pcoinsdbview = new CCoinsViewDB(nCoinDBCache, false, fReindex); - pcoinsTip = new CCoinsViewCache(pcoinsdbview); - - if (fReindex) + pcoinsTip.reset(); + pcoinsdbview.reset(); + pcoinscatcher.reset(); + // new CBlockTreeDB tries to delete the existing file, which + // fails if it's still open from the previous loop. Close it first: + pblocktree.reset(); + pblocktree.reset(new CBlockTreeDB(nBlockTreeDBCache, false, fReset)); + + if (fReset) { pblocktree->WriteReindexing(true); + //If we're reindexing in prune mode, wipe away unusable block files and all undo data files + if (fPruneMode) + CleanupBlockRevFiles(); + } + + if (fRequestShutdown) break; - if (!LoadBlockIndex()) { + // LoadBlockIndex will load fTxIndex from the db, or set it if + // we're reindexing. It will also load fHavePruned if we've + // ever removed a block file from disk. + // Note that it also sets fReindex based on the disk flag! + // From here on out fReindex and fReset mean something different! + if (!LoadBlockIndex(chainparams)) { strLoadError = _("Error loading block database"); break; } // If the loaded chain has a wrong genesis, bail out immediately // (we're likely using a testnet datadir, or the other way around). - if (!mapBlockIndex.empty() && mapBlockIndex.count(Params().HashGenesisBlock()) == 0) + if (!mapBlockIndex.empty() && mapBlockIndex.count(chainparams.GetConsensus().hashGenesisBlock) == 0) return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?")); - // Initialize the block index (no-op if non-empty database was already loaded) - if (!InitBlockIndex()) { + // Check for changed -txindex state + if (fTxIndex != gArgs.GetBoolArg("-txindex", DEFAULT_TXINDEX)) { + strLoadError = _("You need to rebuild the database using -reindex to change -txindex"); + break; + } + + // Check for changed -prune state. What we are concerned about is a user who has pruned blocks + // in the past, but is now trying to run unpruned. + if (fHavePruned && !fPruneMode) { + strLoadError = _("You need to rebuild the database using -reindex to go back to unpruned mode. This will redownload the entire blockchain"); + break; + } + + // At this point blocktree args are consistent with what's on disk. + // If we're not mid-reindex (based on disk + args), add a genesis block on disk + // (otherwise we use the one already on disk). + // This is called again in ThreadImport after the reindex completes. + if (!fReindex && !LoadGenesisBlock(chainparams)) { strLoadError = _("Error initializing block database"); break; } - // Check for changed -txindex state - if (fTxIndex != GetBoolArg("-txindex", false)) { - strLoadError = _("You need to rebuild the database using -reindex to change -txindex"); + // At this point we're either in reindex or we've loaded a useful + // block tree into mapBlockIndex! + + pcoinsdbview.reset(new CCoinsViewDB(nCoinDBCache, false, fReset || fReindexChainState)); + pcoinscatcher.reset(new CCoinsViewErrorCatcher(pcoinsdbview.get())); + + // If necessary, upgrade from older database format. + // This is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate + if (!pcoinsdbview->Upgrade()) { + strLoadError = _("Error upgrading chainstate database"); break; } - uiInterface.InitMessage(_("Verifying blocks...")); - if (!CVerifyDB().VerifyDB(pcoinsdbview, GetArg("-checklevel", 3), - GetArg("-checkblocks", 288))) { - strLoadError = _("Corrupted block database detected"); + // ReplayBlocks is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate + if (!ReplayBlocks(chainparams, pcoinsdbview.get())) { + strLoadError = _("Unable to replay blocks. You will need to rebuild the database using -reindex-chainstate."); break; } - } catch(std::exception &e) { - if (fDebug) LogPrintf("%s\n", e.what()); + + // The on-disk coinsdb is now in a good state, create the cache + pcoinsTip.reset(new CCoinsViewCache(pcoinscatcher.get())); + + bool is_coinsview_empty = fReset || fReindexChainState || pcoinsTip->GetBestBlock().IsNull(); + if (!is_coinsview_empty) { + // LoadChainTip sets chainActive based on pcoinsTip's best block + if (!LoadChainTip(chainparams)) { + strLoadError = _("Error initializing block database"); + break; + } + assert(chainActive.Tip() != nullptr); + } + + if (!fReset) { + // Note that RewindBlockIndex MUST run even if we're about to -reindex-chainstate. + // It both disconnects blocks based on chainActive, and drops block data in + // mapBlockIndex based on lack of available witness data. + uiInterface.InitMessage(_("Rewinding blocks...")); + if (!RewindBlockIndex(chainparams)) { + strLoadError = _("Unable to rewind the database to a pre-fork state. You will need to redownload the blockchain"); + break; + } + } + + if (!is_coinsview_empty) { + uiInterface.InitMessage(_("Verifying blocks...")); + if (fHavePruned && gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) { + LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks", + MIN_BLOCKS_TO_KEEP); + } + + { + LOCK(cs_main); + CBlockIndex* tip = chainActive.Tip(); + RPCNotifyBlockChange(true, tip); + if (tip && tip->nTime > GetAdjustedTime() + 2 * 60 * 60) { + strLoadError = _("The block database contains a block which appears to be from the future. " + "This may be due to your computer's date and time being set incorrectly. " + "Only rebuild the block database if you are sure that your computer's date and time are correct"); + break; + } + } + + if (!CVerifyDB().VerifyDB(chainparams, pcoinsdbview.get(), gArgs.GetArg("-checklevel", DEFAULT_CHECKLEVEL), + gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS))) { + strLoadError = _("Corrupted block database detected"); + break; + } + } + } catch (const std::exception& e) { + LogPrintf("%s\n", e.what()); strLoadError = _("Error opening block database"); break; } @@ -1017,11 +1555,12 @@ bool AppInit2(boost::thread_group& threadGroup) fLoaded = true; } while(false); - if (!fLoaded) { + if (!fLoaded && !fRequestShutdown) { // first suggest a reindex if (!fReset) { - bool fRet = uiInterface.ThreadSafeMessageBox( + bool fRet = uiInterface.ThreadSafeQuestion( strLoadError + ".\n\n" + _("Do you want to rebuild the block database now?"), + strLoadError + ".\nPlease restart with -reindex or -reindex-chainstate to recover.", "", CClientUIInterface::MSG_ERROR | CClientUIInterface::BTN_ABORT); if (fRet) { fReindex = true; @@ -1044,211 +1583,172 @@ bool AppInit2(boost::thread_group& threadGroup) LogPrintf("Shutdown requested. Exiting.\n"); return false; } - LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart); + if (fLoaded) { + LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart); + } - boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME; - CAutoFile est_filein(fopen(est_path.string().c_str(), "rb"), SER_DISK, CLIENT_VERSION); + fs::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME; + CAutoFile est_filein(fsbridge::fopen(est_path, "rb"), SER_DISK, CLIENT_VERSION); // Allowed to fail as this file IS missing on first startup. if (!est_filein.IsNull()) - mempool.ReadFeeEstimates(est_filein); + ::feeEstimator.Read(est_filein); fFeeEstimatesInitialized = true; // ********************************************************* Step 8: load wallet #ifdef ENABLE_WALLET - if (fDisableWallet) { - pwalletMain = NULL; - LogPrintf("Wallet disabled!\n"); - } else { - - // needed to restore wallet transaction meta data after -zapwallettxes - std::vector<CWalletTx> vWtx; - - if (GetBoolArg("-zapwallettxes", false)) { - uiInterface.InitMessage(_("Zapping all transactions from wallet...")); + if (!OpenWallets()) + return false; +#else + LogPrintf("No wallet support compiled in!\n"); +#endif - pwalletMain = new CWallet(strWalletFile); - DBErrors nZapWalletRet = pwalletMain->ZapWalletTx(vWtx); - if (nZapWalletRet != DB_LOAD_OK) { - uiInterface.InitMessage(_("Error loading wallet.dat: Wallet corrupted")); - return false; - } + // ********************************************************* Step 9: data directory maintenance - delete pwalletMain; - pwalletMain = NULL; + // if pruning, unset the service bit and perform the initial blockstore prune + // after any wallet rescanning has taken place. + if (fPruneMode) { + LogPrintf("Unsetting NODE_NETWORK on prune mode\n"); + nLocalServices = ServiceFlags(nLocalServices & ~NODE_NETWORK); + if (!fReindex) { + uiInterface.InitMessage(_("Pruning blockstore...")); + PruneAndFlush(); } + } - uiInterface.InitMessage(_("Loading wallet...")); + if (chainparams.GetConsensus().vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout != 0) { + // Only advertise witness capabilities if they have a reasonable start time. + // This allows us to have the code merged without a defined softfork, by setting its + // end time to 0. + // Note that setting NODE_WITNESS is never required: the only downside from not + // doing so is that after activation, no upgraded nodes will fetch from you. + nLocalServices = ServiceFlags(nLocalServices | NODE_WITNESS); + } - nStart = GetTimeMillis(); - bool fFirstRun = true; - pwalletMain = new CWallet(strWalletFile); - DBErrors nLoadWalletRet = pwalletMain->LoadWallet(fFirstRun); - if (nLoadWalletRet != DB_LOAD_OK) - { - if (nLoadWalletRet == DB_CORRUPT) - strErrors << _("Error loading wallet.dat: Wallet corrupted") << "\n"; - else if (nLoadWalletRet == DB_NONCRITICAL_ERROR) - { - string msg(_("Warning: error reading wallet.dat! All keys read correctly, but transaction data" - " or address book entries might be missing or incorrect.")); - InitWarning(msg); - } - else if (nLoadWalletRet == DB_TOO_NEW) - strErrors << _("Error loading wallet.dat: Wallet requires newer version of Bitcoin Core") << "\n"; - else if (nLoadWalletRet == DB_NEED_REWRITE) - { - strErrors << _("Wallet needed to be rewritten: restart Bitcoin Core to complete") << "\n"; - LogPrintf("%s", strErrors.str()); - return InitError(strErrors.str()); - } - else - strErrors << _("Error loading wallet.dat") << "\n"; - } + // ********************************************************* Step 10: import blocks - if (GetBoolArg("-upgradewallet", fFirstRun)) - { - int nMaxVersion = GetArg("-upgradewallet", 0); - if (nMaxVersion == 0) // the -upgradewallet without argument case - { - LogPrintf("Performing wallet upgrade to %i\n", FEATURE_LATEST); - nMaxVersion = CLIENT_VERSION; - pwalletMain->SetMinVersion(FEATURE_LATEST); // permanently upgrade the wallet immediately - } - else - LogPrintf("Allowing wallet upgrade up to %i\n", nMaxVersion); - if (nMaxVersion < pwalletMain->GetVersion()) - strErrors << _("Cannot downgrade wallet") << "\n"; - pwalletMain->SetMaxVersion(nMaxVersion); - } + if (!CheckDiskSpace()) + return false; - if (fFirstRun) - { - // Create new keyUser and set as default key - RandAddSeedPerfmon(); - - CPubKey newDefaultKey; - if (pwalletMain->GetKeyFromPool(newDefaultKey)) { - pwalletMain->SetDefaultKey(newDefaultKey); - if (!pwalletMain->SetAddressBook(pwalletMain->vchDefaultKey.GetID(), "", "receive")) - strErrors << _("Cannot write default address") << "\n"; - } + // Either install a handler to notify us when genesis activates, or set fHaveGenesis directly. + // No locking, as this happens before any background thread is started. + if (chainActive.Tip() == nullptr) { + uiInterface.NotifyBlockTip.connect(BlockNotifyGenesisWait); + } else { + fHaveGenesis = true; + } - pwalletMain->SetBestChain(chainActive.GetLocator()); - } + if (gArgs.IsArgSet("-blocknotify")) + uiInterface.NotifyBlockTip.connect(BlockNotifyCallback); - LogPrintf("%s", strErrors.str()); - LogPrintf(" wallet %15dms\n", GetTimeMillis() - nStart); + std::vector<fs::path> vImportFiles; + for (const std::string& strFile : gArgs.GetArgs("-loadblock")) { + vImportFiles.push_back(strFile); + } - RegisterValidationInterface(pwalletMain); + threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles)); - CBlockIndex *pindexRescan = chainActive.Tip(); - if (GetBoolArg("-rescan", false)) - pindexRescan = chainActive.Genesis(); - else - { - CWalletDB walletdb(strWalletFile); - CBlockLocator locator; - if (walletdb.ReadBestBlock(locator)) - pindexRescan = FindForkInGlobalIndex(chainActive, locator); - else - pindexRescan = chainActive.Genesis(); - } - if (chainActive.Tip() && chainActive.Tip() != pindexRescan) - { - uiInterface.InitMessage(_("Rescanning...")); - LogPrintf("Rescanning last %i blocks (from block %i)...\n", chainActive.Height() - pindexRescan->nHeight, pindexRescan->nHeight); - nStart = GetTimeMillis(); - pwalletMain->ScanForWalletTransactions(pindexRescan, true); - LogPrintf(" rescan %15dms\n", GetTimeMillis() - nStart); - pwalletMain->SetBestChain(chainActive.GetLocator()); - nWalletDBUpdated++; - - // Restore wallet transaction metadata after -zapwallettxes=1 - if (GetBoolArg("-zapwallettxes", false) && GetArg("-zapwallettxes", "1") != "2") - { - BOOST_FOREACH(const CWalletTx& wtxOld, vWtx) - { - uint256 hash = wtxOld.GetHash(); - std::map<uint256, CWalletTx>::iterator mi = pwalletMain->mapWallet.find(hash); - if (mi != pwalletMain->mapWallet.end()) - { - const CWalletTx* copyFrom = &wtxOld; - CWalletTx* copyTo = &mi->second; - copyTo->mapValue = copyFrom->mapValue; - copyTo->vOrderForm = copyFrom->vOrderForm; - copyTo->nTimeReceived = copyFrom->nTimeReceived; - copyTo->nTimeSmart = copyFrom->nTimeSmart; - copyTo->fFromMe = copyFrom->fFromMe; - copyTo->strFromAccount = copyFrom->strFromAccount; - copyTo->nOrderPos = copyFrom->nOrderPos; - copyTo->WriteToDisk(); - } - } - } + // Wait for genesis block to be processed + { + WaitableLock lock(cs_GenesisWait); + // We previously could hang here if StartShutdown() is called prior to + // ThreadImport getting started, so instead we just wait on a timer to + // check ShutdownRequested() regularly. + while (!fHaveGenesis && !ShutdownRequested()) { + condvar_GenesisWait.wait_for(lock, std::chrono::milliseconds(500)); } - } // (!fDisableWallet) -#else // ENABLE_WALLET - LogPrintf("No wallet compiled in!\n"); -#endif // !ENABLE_WALLET - // ********************************************************* Step 9: import blocks + uiInterface.NotifyBlockTip.disconnect(BlockNotifyGenesisWait); + } - if (mapArgs.count("-blocknotify")) - uiInterface.NotifyBlockTip.connect(BlockNotifyCallback); + if (ShutdownRequested()) { + return false; + } - // scan for better chains in the block chain database, that are not yet connected in the active best chain - CValidationState state; - if (!ActivateBestChain(state)) - strErrors << "Failed to connect best block"; + // ********************************************************* Step 11: start node - std::vector<boost::filesystem::path> vImportFiles; - if (mapArgs.count("-loadblock")) + int chain_active_height; + + //// debug print { - BOOST_FOREACH(string strFile, mapMultiArgs["-loadblock"]) - vImportFiles.push_back(strFile); + LOCK(cs_main); + LogPrintf("mapBlockIndex.size() = %u\n", mapBlockIndex.size()); + chain_active_height = chainActive.Height(); } - threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles)); + LogPrintf("nBestHeight = %d\n", chain_active_height); - // ********************************************************* Step 10: start node + if (gArgs.GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION)) + StartTorControl(); - if (!CheckDiskSpace()) - return false; + Discover(); - if (!strErrors.str().empty()) - return InitError(strErrors.str()); + // Map ports with UPnP + if (gArgs.GetBoolArg("-upnp", DEFAULT_UPNP)) { + StartMapPort(); + } - RandAddSeedPerfmon(); + CConnman::Options connOptions; + connOptions.nLocalServices = nLocalServices; + connOptions.nMaxConnections = nMaxConnections; + connOptions.nMaxOutbound = std::min(MAX_OUTBOUND_CONNECTIONS, connOptions.nMaxConnections); + connOptions.nMaxAddnode = MAX_ADDNODE_CONNECTIONS; + connOptions.nMaxFeeler = 1; + connOptions.nBestHeight = chain_active_height; + connOptions.uiInterface = &uiInterface; + connOptions.m_msgproc = peerLogic.get(); + connOptions.nSendBufferMaxSize = 1000*gArgs.GetArg("-maxsendbuffer", DEFAULT_MAXSENDBUFFER); + connOptions.nReceiveFloodSize = 1000*gArgs.GetArg("-maxreceivebuffer", DEFAULT_MAXRECEIVEBUFFER); + connOptions.m_added_nodes = gArgs.GetArgs("-addnode"); + + connOptions.nMaxOutboundTimeframe = nMaxOutboundTimeframe; + connOptions.nMaxOutboundLimit = nMaxOutboundLimit; + + for (const std::string& strBind : gArgs.GetArgs("-bind")) { + CService addrBind; + if (!Lookup(strBind.c_str(), addrBind, GetListenPort(), false)) { + return InitError(ResolveErrMsg("bind", strBind)); + } + connOptions.vBinds.push_back(addrBind); + } + for (const std::string& strBind : gArgs.GetArgs("-whitebind")) { + CService addrBind; + if (!Lookup(strBind.c_str(), addrBind, 0, false)) { + return InitError(ResolveErrMsg("whitebind", strBind)); + } + if (addrBind.GetPort() == 0) { + return InitError(strprintf(_("Need to specify a port with -whitebind: '%s'"), strBind)); + } + connOptions.vWhiteBinds.push_back(addrBind); + } - //// debug print - LogPrintf("mapBlockIndex.size() = %u\n", mapBlockIndex.size()); - LogPrintf("nBestHeight = %d\n", chainActive.Height()); -#ifdef ENABLE_WALLET - LogPrintf("setKeyPool.size() = %u\n", pwalletMain ? pwalletMain->setKeyPool.size() : 0); - LogPrintf("mapWallet.size() = %u\n", pwalletMain ? pwalletMain->mapWallet.size() : 0); - LogPrintf("mapAddressBook.size() = %u\n", pwalletMain ? pwalletMain->mapAddressBook.size() : 0); -#endif + for (const auto& net : gArgs.GetArgs("-whitelist")) { + CSubNet subnet; + LookupSubNet(net.c_str(), subnet); + if (!subnet.IsValid()) + return InitError(strprintf(_("Invalid netmask specified in -whitelist: '%s'"), net)); + connOptions.vWhitelistedRange.push_back(subnet); + } - StartNode(threadGroup); + connOptions.vSeedNodes = gArgs.GetArgs("-seednode"); -#ifdef ENABLE_WALLET - // Generate coins in the background - if (pwalletMain) - GenerateBitcoins(GetBoolArg("-gen", false), pwalletMain, GetArg("-genproclimit", 1)); -#endif + // Initiate outbound connections unless connect=0 + connOptions.m_use_addrman_outgoing = !gArgs.IsArgSet("-connect"); + if (!connOptions.m_use_addrman_outgoing) { + const auto connect = gArgs.GetArgs("-connect"); + if (connect.size() != 1 || connect[0] != "0") { + connOptions.m_specified_outgoing = connect; + } + } + if (!connman.Start(scheduler, connOptions)) { + return false; + } - // ********************************************************* Step 11: finished + // ********************************************************* Step 12: finished SetRPCWarmupFinished(); uiInterface.InitMessage(_("Done loading")); #ifdef ENABLE_WALLET - if (pwalletMain) { - // Add wallet transactions that aren't already in a block to mapTransactions - pwalletMain->ReacceptWalletTransactions(); - - // Run a thread to flush wallet periodically - threadGroup.create_thread(boost::bind(&ThreadFlushWalletDB, boost::ref(pwalletMain->strWalletFile))); - } + StartWallets(scheduler); #endif - return !fRequestShutdown; + return true; } |