diff options
Diffstat (limited to 'src')
87 files changed, 3842 insertions, 3434 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index 5a5e3abcf..8c12aee21 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -104,13 +104,14 @@ BITCOIN_CORE_H = \ keystore.h \ dbwrapper.h \ limitedmap.h \ - main.h \ memusage.h \ merkleblock.h \ miner.h \ net.h \ + net_processing.h \ netaddress.h \ netbase.h \ + netmessagemaker.h \ noui.h \ policy/fees.h \ policy/policy.h \ @@ -144,6 +145,7 @@ BITCOIN_CORE_H = \ util.h \ utilmoneystr.h \ utiltime.h \ + validation.h \ validationinterface.h \ versionbits.h \ wallet/coincontrol.h \ @@ -178,10 +180,10 @@ libbitcoin_server_a_SOURCES = \ httpserver.cpp \ init.cpp \ dbwrapper.cpp \ - main.cpp \ merkleblock.cpp \ miner.cpp \ net.cpp \ + net_processing.cpp \ noui.cpp \ policy/fees.cpp \ policy/policy.cpp \ @@ -200,6 +202,7 @@ libbitcoin_server_a_SOURCES = \ txdb.cpp \ txmempool.cpp \ ui_interface.cpp \ + validation.cpp \ validationinterface.cpp \ versionbits.cpp \ $(BITCOIN_CORE_H) diff --git a/src/Makefile.bench.include b/src/Makefile.bench.include index 246797a1b..e58bd9dfb 100644 --- a/src/Makefile.bench.include +++ b/src/Makefile.bench.include @@ -22,7 +22,9 @@ bench_bench_bitcoin_SOURCES = \ bench/mempool_eviction.cpp \ bench/verify_script.cpp \ bench/base58.cpp \ - bench/lockedpool.cpp + bench/lockedpool.cpp \ + bench/perf.cpp \ + bench/perf.h nodist_bench_bench_bitcoin_SOURCES = $(GENERATED_TEST_FILES) diff --git a/src/addrman.h b/src/addrman.h index cabacbbea..76e7b210f 100644 --- a/src/addrman.h +++ b/src/addrman.h @@ -482,6 +482,7 @@ public: //! Return the number of (unique) addresses in all tables. size_t size() const { + LOCK(cs); // TODO: Cache this in an atomic to avoid this overhead return vRandom.size(); } @@ -501,13 +502,11 @@ public: //! Add a single address. bool Add(const CAddress &addr, const CNetAddr& source, int64_t nTimePenalty = 0) { + LOCK(cs); bool fRet = false; - { - LOCK(cs); - Check(); - fRet |= Add_(addr, source, nTimePenalty); - Check(); - } + Check(); + fRet |= Add_(addr, source, nTimePenalty); + Check(); if (fRet) LogPrint("addrman", "Added %s from %s: %i tried, %i new\n", addr.ToStringIPPort(), source.ToString(), nTried, nNew); return fRet; @@ -516,14 +515,12 @@ public: //! Add multiple addresses. bool Add(const std::vector<CAddress> &vAddr, const CNetAddr& source, int64_t nTimePenalty = 0) { + LOCK(cs); int nAdd = 0; - { - LOCK(cs); - Check(); - for (std::vector<CAddress>::const_iterator it = vAddr.begin(); it != vAddr.end(); it++) - nAdd += Add_(*it, source, nTimePenalty) ? 1 : 0; - Check(); - } + Check(); + for (std::vector<CAddress>::const_iterator it = vAddr.begin(); it != vAddr.end(); it++) + nAdd += Add_(*it, source, nTimePenalty) ? 1 : 0; + Check(); if (nAdd) LogPrint("addrman", "Added %i addresses from %s: %i tried, %i new\n", nAdd, source.ToString(), nTried, nNew); return nAdd > 0; @@ -532,23 +529,19 @@ public: //! Mark an entry as accessible. void Good(const CService &addr, int64_t nTime = GetAdjustedTime()) { - { - LOCK(cs); - Check(); - Good_(addr, nTime); - Check(); - } + LOCK(cs); + Check(); + Good_(addr, nTime); + Check(); } //! Mark an entry as connection attempted to. void Attempt(const CService &addr, bool fCountFailure, int64_t nTime = GetAdjustedTime()) { - { - LOCK(cs); - Check(); - Attempt_(addr, fCountFailure, nTime); - Check(); - } + LOCK(cs); + Check(); + Attempt_(addr, fCountFailure, nTime); + Check(); } /** @@ -582,12 +575,10 @@ public: //! Mark an entry as currently-connected-to. void Connected(const CService &addr, int64_t nTime = GetAdjustedTime()) { - { - LOCK(cs); - Check(); - Connected_(addr, nTime); - Check(); - } + LOCK(cs); + Check(); + Connected_(addr, nTime); + Check(); } void SetServices(const CService &addr, ServiceFlags nServices) diff --git a/src/bench/Examples.cpp b/src/bench/Examples.cpp index b6b020a97..9f35a1ea0 100644 --- a/src/bench/Examples.cpp +++ b/src/bench/Examples.cpp @@ -3,7 +3,7 @@ // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "bench.h" -#include "main.h" +#include "validation.h" #include "utiltime.h" // Sanity test: this should loop ten times, and diff --git a/src/bench/base58.cpp b/src/bench/base58.cpp index a791b5b7f..3319c179b 100644 --- a/src/bench/base58.cpp +++ b/src/bench/base58.cpp @@ -4,7 +4,7 @@ #include "bench.h" -#include "main.h" +#include "validation.h" #include "base58.h" #include <vector> diff --git a/src/bench/bench.cpp b/src/bench/bench.cpp index 8942da8c7..af3d152c9 100644 --- a/src/bench/bench.cpp +++ b/src/bench/bench.cpp @@ -3,6 +3,7 @@ // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "bench.h" +#include "perf.h" #include <iostream> #include <iomanip> @@ -26,7 +27,9 @@ BenchRunner::BenchRunner(std::string name, BenchFunction func) void BenchRunner::RunAll(double elapsedTimeForOne) { - std::cout << "#Benchmark" << "," << "count" << "," << "min" << "," << "max" << "," << "average" << "\n"; + perf_init(); + std::cout << "#Benchmark" << "," << "count" << "," << "min" << "," << "max" << "," << "average" << "," + << "min_cycles" << "," << "max_cycles" << "," << "average_cycles" << "\n"; for (std::map<std::string,BenchFunction>::iterator it = benchmarks.begin(); it != benchmarks.end(); ++it) { @@ -35,6 +38,7 @@ BenchRunner::RunAll(double elapsedTimeForOne) BenchFunction& func = it->second; func(state); } + perf_fini(); } bool State::KeepRunning() @@ -44,8 +48,10 @@ bool State::KeepRunning() return true; } double now; + uint64_t nowCycles; if (count == 0) { lastTime = beginTime = now = gettimedouble(); + lastCycles = beginCycles = nowCycles = perf_cpucycles(); } else { now = gettimedouble(); @@ -53,6 +59,13 @@ bool State::KeepRunning() double elapsedOne = elapsed * countMaskInv; if (elapsedOne < minTime) minTime = elapsedOne; if (elapsedOne > maxTime) maxTime = elapsedOne; + + // We only use relative values, so don't have to handle 64-bit wrap-around specially + nowCycles = perf_cpucycles(); + uint64_t elapsedOneCycles = (nowCycles - lastCycles) * countMaskInv; + if (elapsedOneCycles < minCycles) minCycles = elapsedOneCycles; + if (elapsedOneCycles > maxCycles) maxCycles = elapsedOneCycles; + if (elapsed*128 < maxElapsed) { // If the execution was much too fast (1/128th of maxElapsed), increase the count mask by 8x and restart timing. // The restart avoids including the overhead of this code in the measurement. @@ -61,6 +74,8 @@ bool State::KeepRunning() count = 0; minTime = std::numeric_limits<double>::max(); maxTime = std::numeric_limits<double>::min(); + minCycles = std::numeric_limits<uint64_t>::max(); + maxCycles = std::numeric_limits<uint64_t>::min(); return true; } if (elapsed*16 < maxElapsed) { @@ -72,6 +87,7 @@ bool State::KeepRunning() } } lastTime = now; + lastCycles = nowCycles; ++count; if (now - beginTime < maxElapsed) return true; // Keep going @@ -80,7 +96,9 @@ bool State::KeepRunning() // Output results double average = (now-beginTime)/count; - std::cout << std::fixed << std::setprecision(15) << name << "," << count << "," << minTime << "," << maxTime << "," << average << "\n"; + int64_t averageCycles = (nowCycles-beginCycles)/count; + std::cout << std::fixed << std::setprecision(15) << name << "," << count << "," << minTime << "," << maxTime << "," << average << "," + << minCycles << "," << maxCycles << "," << averageCycles << "\n"; return false; } diff --git a/src/bench/bench.h b/src/bench/bench.h index f13b145aa..caf73e949 100644 --- a/src/bench/bench.h +++ b/src/bench/bench.h @@ -41,12 +41,18 @@ namespace benchmark { double maxElapsed; double beginTime; double lastTime, minTime, maxTime, countMaskInv; - int64_t count; - int64_t countMask; + uint64_t count; + uint64_t countMask; + uint64_t beginCycles; + uint64_t lastCycles; + uint64_t minCycles; + uint64_t maxCycles; public: State(std::string _name, double _maxElapsed) : name(_name), maxElapsed(_maxElapsed), count(0) { minTime = std::numeric_limits<double>::max(); maxTime = std::numeric_limits<double>::min(); + minCycles = std::numeric_limits<uint64_t>::max(); + maxCycles = std::numeric_limits<uint64_t>::min(); countMask = 1; countMaskInv = 1./(countMask + 1); } diff --git a/src/bench/bench_bitcoin.cpp b/src/bench/bench_bitcoin.cpp index db1402216..bd768180c 100644 --- a/src/bench/bench_bitcoin.cpp +++ b/src/bench/bench_bitcoin.cpp @@ -5,7 +5,7 @@ #include "bench.h" #include "key.h" -#include "main.h" +#include "validation.h" #include "util.h" int diff --git a/src/bench/checkblock.cpp b/src/bench/checkblock.cpp index 4a564d3fc..230e4ca77 100644 --- a/src/bench/checkblock.cpp +++ b/src/bench/checkblock.cpp @@ -5,7 +5,8 @@ #include "bench.h" #include "chainparams.h" -#include "main.h" +#include "validation.h" +#include "streams.h" #include "consensus/validation.h" namespace block_bench { diff --git a/src/bench/perf.cpp b/src/bench/perf.cpp new file mode 100644 index 000000000..1f43e5d3a --- /dev/null +++ b/src/bench/perf.cpp @@ -0,0 +1,53 @@ +// Copyright (c) 2016 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include "perf.h" + +#if defined(__i386__) || defined(__x86_64__) + +/* These architectures support quering the cycle counter + * from user space, no need for any syscall overhead. + */ +void perf_init(void) { } +void perf_fini(void) { } + +#elif defined(__linux__) + +#include <unistd.h> +#include <sys/syscall.h> +#include <linux/perf_event.h> + +static int fd = -1; +static struct perf_event_attr attr; + +void perf_init(void) +{ + attr.type = PERF_TYPE_HARDWARE; + attr.config = PERF_COUNT_HW_CPU_CYCLES; + fd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, 0); +} + +void perf_fini(void) +{ + if (fd != -1) { + close(fd); + } +} + +uint64_t perf_cpucycles(void) +{ + uint64_t result = 0; + if (fd == -1 || read(fd, &result, sizeof(result)) < (ssize_t)sizeof(result)) { + return 0; + } + return result; +} + +#else /* Unhandled platform */ + +void perf_init(void) { } +void perf_fini(void) { } +uint64_t perf_cpucycles(void) { return 0; } + +#endif diff --git a/src/bench/perf.h b/src/bench/perf.h new file mode 100644 index 000000000..681bd0c8a --- /dev/null +++ b/src/bench/perf.h @@ -0,0 +1,37 @@ +// Copyright (c) 2016 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +/** Functions for measurement of CPU cycles */ +#ifndef H_PERF +#define H_PERF + +#include <stdint.h> + +#if defined(__i386__) + +static inline uint64_t perf_cpucycles(void) +{ + uint64_t x; + __asm__ volatile (".byte 0x0f, 0x31" : "=A" (x)); + return x; +} + +#elif defined(__x86_64__) + +static inline uint64_t perf_cpucycles(void) +{ + uint32_t hi, lo; + __asm__ __volatile__ ("rdtsc" : "=a"(lo), "=d"(hi)); + return ((uint64_t)lo)|(((uint64_t)hi)<<32); +} +#else + +uint64_t perf_cpucycles(void); + +#endif + +void perf_init(void); +void perf_fini(void); + +#endif // H_PERF diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp index 392d1b932..596cc8ead 100644 --- a/src/bitcoin-cli.cpp +++ b/src/bitcoin-cli.cpp @@ -24,15 +24,13 @@ #include <univalue.h> -using namespace std; - static const char DEFAULT_RPCCONNECT[] = "127.0.0.1"; static const int DEFAULT_HTTP_CLIENT_TIMEOUT=900; static const int CONTINUE_EXECUTION=-1; std::string HelpMessageCli() { - string strUsage; + std::string strUsage; strUsage += HelpMessageGroup(_("Options:")); strUsage += HelpMessageOpt("-?", _("This help message")); strUsage += HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file (default: %s)"), BITCOIN_CONF_FILENAME)); @@ -187,7 +185,7 @@ static void http_error_cb(enum evhttp_request_error err, void *ctx) } #endif -UniValue CallRPC(const string& strMethod, const UniValue& params) +UniValue CallRPC(const std::string& strMethod, const UniValue& params) { std::string host = GetArg("-rpcconnect", DEFAULT_RPCCONNECT); int port = GetArg("-rpcport", BaseParams().RPCPort()); @@ -195,18 +193,18 @@ UniValue CallRPC(const string& strMethod, const UniValue& params) // Create event base struct event_base *base = event_base_new(); // TODO RAII if (!base) - throw runtime_error("cannot create event_base"); + throw std::runtime_error("cannot create event_base"); // Synchronously look up hostname struct evhttp_connection *evcon = evhttp_connection_base_new(base, NULL, host.c_str(), port); // TODO RAII if (evcon == NULL) - throw runtime_error("create connection failed"); + throw std::runtime_error("create connection failed"); evhttp_connection_set_timeout(evcon, GetArg("-rpcclienttimeout", DEFAULT_HTTP_CLIENT_TIMEOUT)); HTTPReply response; struct evhttp_request *req = evhttp_request_new(http_request_done, (void*)&response); // TODO RAII if (req == NULL) - throw runtime_error("create http request failed"); + throw std::runtime_error("create http request failed"); #if LIBEVENT_VERSION_NUMBER >= 0x02010300 evhttp_request_set_error_cb(req, http_error_cb); #endif @@ -216,7 +214,7 @@ UniValue CallRPC(const string& strMethod, const UniValue& params) if (mapArgs["-rpcpassword"] == "") { // Try fall back to cookie-based authentication if no password is provided if (!GetAuthCookie(&strRPCUserColonPass)) { - throw runtime_error(strprintf( + throw std::runtime_error(strprintf( _("Could not locate RPC credentials. No authentication cookie could be found, and no rpcpassword is set in the configuration file (%s)"), GetConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME)).string().c_str())); @@ -249,28 +247,28 @@ UniValue CallRPC(const string& strMethod, const UniValue& params) event_base_free(base); if (response.status == 0) - throw CConnectionFailed(strprintf("couldn't connect to server\n(make sure server is running and you are connecting to the correct RPC port: %d %s)", response.error, http_errorstring(response.error))); + throw CConnectionFailed(strprintf("couldn't connect to server: %s (code %d)\n(make sure server is running and you are connecting to the correct RPC port)", http_errorstring(response.error), response.error)); else if (response.status == HTTP_UNAUTHORIZED) - throw runtime_error("incorrect rpcuser or rpcpassword (authorization failed)"); + throw std::runtime_error("incorrect rpcuser or rpcpassword (authorization failed)"); else if (response.status >= 400 && response.status != HTTP_BAD_REQUEST && response.status != HTTP_NOT_FOUND && response.status != HTTP_INTERNAL_SERVER_ERROR) - throw runtime_error(strprintf("server returned HTTP error %d", response.status)); + throw std::runtime_error(strprintf("server returned HTTP error %d", response.status)); else if (response.body.empty()) - throw runtime_error("no response from server"); + throw std::runtime_error("no response from server"); // Parse reply UniValue valReply(UniValue::VSTR); if (!valReply.read(response.body)) - throw runtime_error("couldn't parse reply from server"); + throw std::runtime_error("couldn't parse reply from server"); const UniValue& reply = valReply.get_obj(); if (reply.empty()) - throw runtime_error("expected reply to have result, error and id properties"); + throw std::runtime_error("expected reply to have result, error and id properties"); return reply; } int CommandLineRPC(int argc, char *argv[]) { - string strPrint; + std::string strPrint; int nRet = 0; try { // Skip switches @@ -286,7 +284,7 @@ int CommandLineRPC(int argc, char *argv[]) args.push_back(line); } if (args.size() < 1) - throw runtime_error("too few parameters (need at least command)"); + throw std::runtime_error("too few parameters (need at least command)"); std::string strMethod = args[0]; UniValue params = RPCConvertValues(strMethod, std::vector<std::string>(args.begin()+1, args.end())); @@ -340,7 +338,7 @@ int CommandLineRPC(int argc, char *argv[]) throw; } catch (const std::exception& e) { - strPrint = string("error: ") + e.what(); + strPrint = std::string("error: ") + e.what(); nRet = EXIT_FAILURE; } catch (...) { diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp index 6d17bc392..346d8e180 100644 --- a/src/bitcoin-tx.cpp +++ b/src/bitcoin-tx.cpp @@ -26,10 +26,8 @@ #include <boost/algorithm/string.hpp> #include <boost/assign/list_of.hpp> -using namespace std; - static bool fCreateBlank; -static map<string,UniValue> registers; +static std::map<std::string,UniValue> registers; static const int CONTINUE_EXECUTION=-1; // @@ -103,52 +101,52 @@ static int AppInitRawTx(int argc, char* argv[]) return CONTINUE_EXECUTION; } -static void RegisterSetJson(const string& key, const string& rawJson) +static void RegisterSetJson(const std::string& key, const std::string& rawJson) { UniValue val; if (!val.read(rawJson)) { - string strErr = "Cannot parse JSON for key " + key; - throw runtime_error(strErr); + std::string strErr = "Cannot parse JSON for key " + key; + throw std::runtime_error(strErr); } registers[key] = val; } -static void RegisterSet(const string& strInput) +static void RegisterSet(const std::string& strInput) { // separate NAME:VALUE in string size_t pos = strInput.find(':'); - if ((pos == string::npos) || + if ((pos == std::string::npos) || (pos == 0) || (pos == (strInput.size() - 1))) - throw runtime_error("Register input requires NAME:VALUE"); + throw std::runtime_error("Register input requires NAME:VALUE"); - string key = strInput.substr(0, pos); - string valStr = strInput.substr(pos + 1, string::npos); + std::string key = strInput.substr(0, pos); + std::string valStr = strInput.substr(pos + 1, std::string::npos); RegisterSetJson(key, valStr); } -static void RegisterLoad(const string& strInput) +static void RegisterLoad(const std::string& strInput) { // separate NAME:FILENAME in string size_t pos = strInput.find(':'); - if ((pos == string::npos) || + if ((pos == std::string::npos) || (pos == 0) || (pos == (strInput.size() - 1))) - throw runtime_error("Register load requires NAME:FILENAME"); + throw std::runtime_error("Register load requires NAME:FILENAME"); - string key = strInput.substr(0, pos); - string filename = strInput.substr(pos + 1, string::npos); + std::string key = strInput.substr(0, pos); + std::string filename = strInput.substr(pos + 1, std::string::npos); FILE *f = fopen(filename.c_str(), "r"); if (!f) { - string strErr = "Cannot open file " + filename; - throw runtime_error(strErr); + std::string strErr = "Cannot open file " + filename; + throw std::runtime_error(strErr); } // load file chunks into one big buffer - string valStr; + std::string valStr; while ((!feof(f)) && (!ferror(f))) { char buf[4096]; int bread = fread(buf, 1, sizeof(buf), f); @@ -162,55 +160,55 @@ static void RegisterLoad(const string& strInput) fclose(f); if (error) { - string strErr = "Error reading file " + filename; - throw runtime_error(strErr); + std::string strErr = "Error reading file " + filename; + throw std::runtime_error(strErr); } // evaluate as JSON buffer register RegisterSetJson(key, valStr); } -static void MutateTxVersion(CMutableTransaction& tx, const string& cmdVal) +static void MutateTxVersion(CMutableTransaction& tx, const std::string& cmdVal) { int64_t newVersion = atoi64(cmdVal); if (newVersion < 1 || newVersion > CTransaction::MAX_STANDARD_VERSION) - throw runtime_error("Invalid TX version requested"); + throw std::runtime_error("Invalid TX version requested"); tx.nVersion = (int) newVersion; } -static void MutateTxLocktime(CMutableTransaction& tx, const string& cmdVal) +static void MutateTxLocktime(CMutableTransaction& tx, const std::string& cmdVal) { int64_t newLocktime = atoi64(cmdVal); if (newLocktime < 0LL || newLocktime > 0xffffffffLL) - throw runtime_error("Invalid TX locktime requested"); + throw std::runtime_error("Invalid TX locktime requested"); tx.nLockTime = (unsigned int) newLocktime; } -static void MutateTxAddInput(CMutableTransaction& tx, const string& strInput) +static void MutateTxAddInput(CMutableTransaction& tx, const std::string& strInput) { std::vector<std::string> vStrInputParts; boost::split(vStrInputParts, strInput, boost::is_any_of(":")); // separate TXID:VOUT in string if (vStrInputParts.size()<2) - throw runtime_error("TX input missing separator"); + throw std::runtime_error("TX input missing separator"); // extract and validate TXID - string strTxid = vStrInputParts[0]; + std::string strTxid = vStrInputParts[0]; if ((strTxid.size() != 64) || !IsHex(strTxid)) - throw runtime_error("invalid TX input txid"); + throw std::runtime_error("invalid TX input txid"); uint256 txid(uint256S(strTxid)); static const unsigned int minTxOutSz = 9; static const unsigned int maxVout = MAX_BLOCK_BASE_SIZE / minTxOutSz; // extract and validate vout - string strVout = vStrInputParts[1]; + std::string strVout = vStrInputParts[1]; int vout = atoi(strVout); if ((vout < 0) || (vout > (int)maxVout)) - throw runtime_error("invalid TX input vout"); + throw std::runtime_error("invalid TX input vout"); // extract the optional sequence number uint32_t nSequenceIn=std::numeric_limits<unsigned int>::max(); @@ -222,26 +220,26 @@ static void MutateTxAddInput(CMutableTransaction& tx, const string& strInput) tx.vin.push_back(txin); } -static void MutateTxAddOutAddr(CMutableTransaction& tx, const string& strInput) +static void MutateTxAddOutAddr(CMutableTransaction& tx, const std::string& strInput) { // separate VALUE:ADDRESS in string size_t pos = strInput.find(':'); - if ((pos == string::npos) || + if ((pos == std::string::npos) || (pos == 0) || (pos == (strInput.size() - 1))) - throw runtime_error("TX output missing separator"); + throw std::runtime_error("TX output missing separator"); // extract and validate VALUE - string strValue = strInput.substr(0, pos); + std::string strValue = strInput.substr(0, pos); CAmount value; if (!ParseMoney(strValue, value)) - throw runtime_error("invalid TX output value"); + throw std::runtime_error("invalid TX output value"); // extract and validate ADDRESS - string strAddr = strInput.substr(pos + 1, string::npos); + std::string strAddr = strInput.substr(pos + 1, std::string::npos); CBitcoinAddress addr(strAddr); if (!addr.IsValid()) - throw runtime_error("invalid TX output address"); + throw std::runtime_error("invalid TX output address"); // build standard output script via GetScriptForDestination() CScript scriptPubKey = GetScriptForDestination(addr.Get()); @@ -251,7 +249,7 @@ static void MutateTxAddOutAddr(CMutableTransaction& tx, const string& strInput) tx.vout.push_back(txout); } -static void MutateTxAddOutData(CMutableTransaction& tx, const string& strInput) +static void MutateTxAddOutData(CMutableTransaction& tx, const std::string& strInput) { CAmount value = 0; @@ -259,20 +257,20 @@ static void MutateTxAddOutData(CMutableTransaction& tx, const string& strInput) size_t pos = strInput.find(':'); if (pos==0) - throw runtime_error("TX output value not specified"); + throw std::runtime_error("TX output value not specified"); - if (pos != string::npos) { + if (pos != std::string::npos) { // extract and validate VALUE - string strValue = strInput.substr(0, pos); + std::string strValue = strInput.substr(0, pos); if (!ParseMoney(strValue, value)) - throw runtime_error("invalid TX output value"); + throw std::runtime_error("invalid TX output value"); } // extract and validate DATA - string strData = strInput.substr(pos + 1, string::npos); + std::string strData = strInput.substr(pos + 1, std::string::npos); if (!IsHex(strData)) - throw runtime_error("invalid TX output data"); + throw std::runtime_error("invalid TX output data"); std::vector<unsigned char> data = ParseHex(strData); @@ -280,22 +278,22 @@ static void MutateTxAddOutData(CMutableTransaction& tx, const string& strInput) tx.vout.push_back(txout); } -static void MutateTxAddOutScript(CMutableTransaction& tx, const string& strInput) +static void MutateTxAddOutScript(CMutableTransaction& tx, const std::string& strInput) { // separate VALUE:SCRIPT in string size_t pos = strInput.find(':'); - if ((pos == string::npos) || + if ((pos == std::string::npos) || (pos == 0)) - throw runtime_error("TX output missing separator"); + throw std::runtime_error("TX output missing separator"); // extract and validate VALUE - string strValue = strInput.substr(0, pos); + std::string strValue = strInput.substr(0, pos); CAmount value; if (!ParseMoney(strValue, value)) - throw runtime_error("invalid TX output value"); + throw std::runtime_error("invalid TX output value"); // extract and validate script - string strScript = strInput.substr(pos + 1, string::npos); + std::string strScript = strInput.substr(pos + 1, std::string::npos); CScript scriptPubKey = ParseScript(strScript); // throws on err // construct TxOut, append to transaction output list @@ -303,26 +301,26 @@ static void MutateTxAddOutScript(CMutableTransaction& tx, const string& strInput tx.vout.push_back(txout); } -static void MutateTxDelInput(CMutableTransaction& tx, const string& strInIdx) +static void MutateTxDelInput(CMutableTransaction& tx, const std::string& strInIdx) { // parse requested deletion index int inIdx = atoi(strInIdx); if (inIdx < 0 || inIdx >= (int)tx.vin.size()) { - string strErr = "Invalid TX input index '" + strInIdx + "'"; - throw runtime_error(strErr.c_str()); + std::string strErr = "Invalid TX input index '" + strInIdx + "'"; + throw std::runtime_error(strErr.c_str()); } // delete input from transaction tx.vin.erase(tx.vin.begin() + inIdx); } -static void MutateTxDelOutput(CMutableTransaction& tx, const string& strOutIdx) +static void MutateTxDelOutput(CMutableTransaction& tx, const std::string& strOutIdx) { // parse requested deletion index int outIdx = atoi(strOutIdx); if (outIdx < 0 || outIdx >= (int)tx.vout.size()) { - string strErr = "Invalid TX output index '" + strOutIdx + "'"; - throw runtime_error(strErr.c_str()); + std::string strErr = "Invalid TX output index '" + strOutIdx + "'"; + throw std::runtime_error(strErr.c_str()); } // delete output from transaction @@ -342,7 +340,7 @@ static const struct { {"SINGLE|ANYONECANPAY", SIGHASH_SINGLE|SIGHASH_ANYONECANPAY}, }; -static bool findSighashFlags(int& flags, const string& flagStr) +static bool findSighashFlags(int& flags, const std::string& flagStr) { flags = 0; @@ -356,17 +354,17 @@ static bool findSighashFlags(int& flags, const string& flagStr) return false; } -uint256 ParseHashUO(map<string,UniValue>& o, string strKey) +uint256 ParseHashUO(std::map<std::string,UniValue>& o, std::string strKey) { if (!o.count(strKey)) return uint256(); return ParseHashUV(o[strKey], strKey); } -vector<unsigned char> ParseHexUO(map<string,UniValue>& o, string strKey) +std::vector<unsigned char> ParseHexUO(std::map<std::string,UniValue>& o, std::string strKey) { if (!o.count(strKey)) { - vector<unsigned char> emptyVec; + std::vector<unsigned char> emptyVec; return emptyVec; } return ParseHexUV(o[strKey], strKey); @@ -375,24 +373,24 @@ vector<unsigned char> ParseHexUO(map<string,UniValue>& o, string strKey) static CAmount AmountFromValue(const UniValue& value) { if (!value.isNum() && !value.isStr()) - throw runtime_error("Amount is not a number or string"); + throw std::runtime_error("Amount is not a number or string"); CAmount amount; if (!ParseFixedPoint(value.getValStr(), 8, &amount)) - throw runtime_error("Invalid amount"); + throw std::runtime_error("Invalid amount"); if (!MoneyRange(amount)) - throw runtime_error("Amount out of range"); + throw std::runtime_error("Amount out of range"); return amount; } -static void MutateTxSign(CMutableTransaction& tx, const string& flagStr) +static void MutateTxSign(CMutableTransaction& tx, const std::string& flagStr) { int nHashType = SIGHASH_ALL; if (flagStr.size() > 0) if (!findSighashFlags(nHashType, flagStr)) - throw runtime_error("unknown sighash flag/sign option"); + throw std::runtime_error("unknown sighash flag/sign option"); - vector<CTransaction> txVariants; + std::vector<CTransaction> txVariants; txVariants.push_back(tx); // mergedTx will end up with all the signatures; it @@ -403,17 +401,17 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr) CCoinsViewCache view(&viewDummy); if (!registers.count("privatekeys")) - throw runtime_error("privatekeys register variable must be set."); + throw std::runtime_error("privatekeys register variable must be set."); CBasicKeyStore tempKeystore; UniValue keysObj = registers["privatekeys"]; for (unsigned int kidx = 0; kidx < keysObj.size(); kidx++) { if (!keysObj[kidx].isStr()) - throw runtime_error("privatekey not a string"); + throw std::runtime_error("privatekey not a std::string"); CBitcoinSecret vchSecret; bool fGood = vchSecret.SetString(keysObj[kidx].getValStr()); if (!fGood) - throw runtime_error("privatekey not valid"); + throw std::runtime_error("privatekey not valid"); CKey key = vchSecret.GetKey(); tempKeystore.AddKey(key); @@ -421,34 +419,34 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr) // Add previous txouts given in the RPC call: if (!registers.count("prevtxs")) - throw runtime_error("prevtxs register variable must be set."); + throw std::runtime_error("prevtxs register variable must be set."); UniValue prevtxsObj = registers["prevtxs"]; { for (unsigned int previdx = 0; previdx < prevtxsObj.size(); previdx++) { UniValue prevOut = prevtxsObj[previdx]; if (!prevOut.isObject()) - throw runtime_error("expected prevtxs internal object"); + throw std::runtime_error("expected prevtxs internal object"); - map<string,UniValue::VType> types = boost::assign::map_list_of("txid", UniValue::VSTR)("vout",UniValue::VNUM)("scriptPubKey",UniValue::VSTR); + std::map<std::string,UniValue::VType> types = boost::assign::map_list_of("txid", UniValue::VSTR)("vout",UniValue::VNUM)("scriptPubKey",UniValue::VSTR); if (!prevOut.checkObject(types)) - throw runtime_error("prevtxs internal object typecheck fail"); + throw std::runtime_error("prevtxs internal object typecheck fail"); uint256 txid = ParseHashUV(prevOut["txid"], "txid"); int nOut = atoi(prevOut["vout"].getValStr()); if (nOut < 0) - throw runtime_error("vout must be positive"); + throw std::runtime_error("vout must be positive"); - vector<unsigned char> pkData(ParseHexUV(prevOut["scriptPubKey"], "scriptPubKey")); + std::vector<unsigned char> pkData(ParseHexUV(prevOut["scriptPubKey"], "scriptPubKey")); CScript scriptPubKey(pkData.begin(), pkData.end()); { CCoinsModifier coins = view.ModifyCoins(txid); if (coins->IsAvailable(nOut) && coins->vout[nOut].scriptPubKey != scriptPubKey) { - string err("Previous output scriptPubKey mismatch:\n"); + std::string err("Previous output scriptPubKey mismatch:\n"); err = err + ScriptToAsmStr(coins->vout[nOut].scriptPubKey) + "\nvs:\n"+ ScriptToAsmStr(scriptPubKey); - throw runtime_error(err); + throw std::runtime_error(err); } if ((unsigned int)nOut >= coins->vout.size()) coins->vout.resize(nOut+1); @@ -464,7 +462,7 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr) if ((scriptPubKey.IsPayToScriptHash() || scriptPubKey.IsPayToWitnessScriptHash()) && prevOut.exists("redeemScript")) { UniValue v = prevOut["redeemScript"]; - vector<unsigned char> rsData(ParseHexUV(v, "redeemScript")); + std::vector<unsigned char> rsData(ParseHexUV(v, "redeemScript")); CScript redeemScript(rsData.begin(), rsData.end()); tempKeystore.AddCScript(redeemScript); } @@ -521,8 +519,8 @@ public: } }; -static void MutateTx(CMutableTransaction& tx, const string& command, - const string& commandVal) +static void MutateTx(CMutableTransaction& tx, const std::string& command, + const std::string& commandVal) { std::unique_ptr<Secp256k1Init> ecc; @@ -557,7 +555,7 @@ static void MutateTx(CMutableTransaction& tx, const string& command, RegisterSet(commandVal); else - throw runtime_error("unknown command"); + throw std::runtime_error("unknown command"); } static void OutputTxJSON(const CTransaction& tx) @@ -565,20 +563,20 @@ static void OutputTxJSON(const CTransaction& tx) UniValue entry(UniValue::VOBJ); TxToUniv(tx, uint256(), entry); - string jsonOutput = entry.write(4); + std::string jsonOutput = entry.write(4); fprintf(stdout, "%s\n", jsonOutput.c_str()); } static void OutputTxHash(const CTransaction& tx) { - string strHexHash = tx.GetHash().GetHex(); // the hex-encoded transaction hash (aka the transaction id) + std::string strHexHash = tx.GetHash().GetHex(); // the hex-encoded transaction hash (aka the transaction id) fprintf(stdout, "%s\n", strHexHash.c_str()); } static void OutputTxHex(const CTransaction& tx) { - string strHex = EncodeHexTx(tx); + std::string strHex = EncodeHexTx(tx); fprintf(stdout, "%s\n", strHex.c_str()); } @@ -593,10 +591,10 @@ static void OutputTx(const CTransaction& tx) OutputTxHex(tx); } -static string readStdin() +static std::string readStdin() { char buf[4096]; - string ret; + std::string ret; while (!feof(stdin)) { size_t bread = fread(buf, 1, sizeof(buf), stdin); @@ -606,7 +604,7 @@ static string readStdin() } if (ferror(stdin)) - throw runtime_error("error reading stdin"); + throw std::runtime_error("error reading stdin"); boost::algorithm::trim_right(ret); @@ -615,7 +613,7 @@ static string readStdin() static int CommandLineRawTx(int argc, char* argv[]) { - string strPrint; + std::string strPrint; int nRet = 0; try { // Skip switches; Permit common stdin convention "-" @@ -631,15 +629,15 @@ static int CommandLineRawTx(int argc, char* argv[]) if (!fCreateBlank) { // require at least one param if (argc < 2) - throw runtime_error("too few parameters"); + throw std::runtime_error("too few parameters"); // param: hex-encoded bitcoin transaction - string strHexTx(argv[1]); + std::string strHexTx(argv[1]); if (strHexTx == "-") // "-" implies standard input strHexTx = readStdin(); if (!DecodeHexTx(txDecodeTmp, strHexTx, true)) - throw runtime_error("invalid transaction encoding"); + throw std::runtime_error("invalid transaction encoding"); startArg = 2; } else @@ -648,10 +646,10 @@ static int CommandLineRawTx(int argc, char* argv[]) CMutableTransaction tx(txDecodeTmp); for (int i = startArg; i < argc; i++) { - string arg = argv[i]; - string key, value; + std::string arg = argv[i]; + std::string key, value; size_t eqpos = arg.find('='); - if (eqpos == string::npos) + if (eqpos == std::string::npos) key = arg; else { key = arg.substr(0, eqpos); @@ -668,7 +666,7 @@ static int CommandLineRawTx(int argc, char* argv[]) throw; } catch (const std::exception& e) { - strPrint = string("error: ") + e.what(); + strPrint = std::string("error: ") + e.what(); nRet = EXIT_FAILURE; } catch (...) { diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp index 3352a76de..ba3ccac61 100644 --- a/src/bitcoind.cpp +++ b/src/bitcoind.cpp @@ -128,6 +128,26 @@ bool AppInit(int argc, char* argv[]) fprintf(stderr, "Error: There is no RPC client functionality in bitcoind anymore. Use the bitcoin-cli utility instead.\n"); exit(EXIT_FAILURE); } + // -server defaults to true for bitcoind but not for the GUI so do this here + SoftSetBoolArg("-server", true); + // Set this early so that parameter interactions go to console + InitLogging(); + InitParameterInteraction(); + if (!AppInitBasicSetup()) + { + // InitError will have been called with detailed error, which ends up on console + exit(1); + } + if (!AppInitParameterInteraction()) + { + // InitError will have been called with detailed error, which ends up on console + exit(1); + } + if (!AppInitSanityChecks()) + { + // InitError will have been called with detailed error, which ends up on console + exit(1); + } if (GetBoolArg("-daemon", false)) { #if HAVE_DECL_DAEMON @@ -143,12 +163,8 @@ bool AppInit(int argc, char* argv[]) return false; #endif // HAVE_DECL_DAEMON } - SoftSetBoolArg("-server", true); - // Set this early so that parameter interactions go to console - InitLogging(); - InitParameterInteraction(); - fRet = AppInit2(threadGroup, scheduler); + fRet = AppInitMain(threadGroup, scheduler); } catch (const std::exception& e) { PrintExceptionContinue(&e, "AppInit()"); diff --git a/src/blockencodings.cpp b/src/blockencodings.cpp index f14ae1c41..914af0c67 100644 --- a/src/blockencodings.cpp +++ b/src/blockencodings.cpp @@ -10,7 +10,7 @@ #include "random.h" #include "streams.h" #include "txmempool.h" -#include "main.h" +#include "validation.h" #include "util.h" #include <unordered_map> @@ -62,7 +62,7 @@ ReadStatus PartiallyDownloadedBlock::InitData(const CBlockHeaderAndShortTxIDs& c if (cmpctblock.prefilledtxn[i].tx->IsNull()) return READ_STATUS_INVALID; - lastprefilledindex += cmpctblock.prefilledtxn[i].index + 1; //index is a uint16_t, so cant overflow here + lastprefilledindex += cmpctblock.prefilledtxn[i].index + 1; //index is a uint16_t, so can't overflow here if (lastprefilledindex > std::numeric_limits<uint16_t>::max()) return READ_STATUS_INVALID; if ((uint32_t)lastprefilledindex > cmpctblock.shorttxids.size() + i) { diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp index d22c188c1..a487fb1dc 100644 --- a/src/checkpoints.cpp +++ b/src/checkpoints.cpp @@ -6,7 +6,7 @@ #include "chain.h" #include "chainparams.h" -#include "main.h" +#include "validation.h" #include "uint256.h" #include <stdint.h> diff --git a/src/compat.h b/src/compat.h index 79a297e5e..2578d6d34 100644 --- a/src/compat.h +++ b/src/compat.h @@ -34,6 +34,7 @@ #else #include <sys/fcntl.h> #include <sys/mman.h> +#include <sys/select.h> #include <sys/socket.h> #include <sys/types.h> #include <net/if.h> diff --git a/src/core_io.h b/src/core_io.h index b559d44bf..5aecbc448 100644 --- a/src/core_io.h +++ b/src/core_io.h @@ -15,18 +15,18 @@ class uint256; class UniValue; // core_read.cpp -extern CScript ParseScript(const std::string& s); -extern std::string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDecode = false); -extern bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx, bool fTryNoWitness = false); -extern bool DecodeHexBlk(CBlock&, const std::string& strHexBlk); -extern uint256 ParseHashUV(const UniValue& v, const std::string& strName); -extern uint256 ParseHashStr(const std::string&, const std::string& strName); -extern std::vector<unsigned char> ParseHexUV(const UniValue& v, const std::string& strName); +CScript ParseScript(const std::string& s); +std::string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDecode = false); +bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx, bool fTryNoWitness = false); +bool DecodeHexBlk(CBlock&, const std::string& strHexBlk); +uint256 ParseHashUV(const UniValue& v, const std::string& strName); +uint256 ParseHashStr(const std::string&, const std::string& strName); +std::vector<unsigned char> ParseHexUV(const UniValue& v, const std::string& strName); // core_write.cpp -extern std::string FormatScript(const CScript& script); -extern std::string EncodeHexTx(const CTransaction& tx); -extern void ScriptPubKeyToUniv(const CScript& scriptPubKey, UniValue& out, bool fIncludeHex); -extern void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry); +std::string FormatScript(const CScript& script); +std::string EncodeHexTx(const CTransaction& tx); +void ScriptPubKeyToUniv(const CScript& scriptPubKey, UniValue& out, bool fIncludeHex); +void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry); #endif // BITCOIN_CORE_IO_H diff --git a/src/crypto/ctaes/test.c b/src/crypto/ctaes/test.c index fce1696ac..21439a16f 100644 --- a/src/crypto/ctaes/test.c +++ b/src/crypto/ctaes/test.c @@ -102,7 +102,7 @@ int main(void) { } } if (fail == 0) { - fprintf(stderr, "All tests succesful\n"); + fprintf(stderr, "All tests successful\n"); } else { fprintf(stderr, "%i tests failed\n", fail); } diff --git a/src/init.cpp b/src/init.cpp index ca5437fb9..ba5fe4152 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -19,10 +19,11 @@ #include "httpserver.h" #include "httprpc.h" #include "key.h" -#include "main.h" +#include "validation.h" #include "miner.h" #include "netbase.h" #include "net.h" +#include "net_processing.h" #include "policy/policy.h" #include "rpc/server.h" #include "rpc/register.h" @@ -391,7 +392,7 @@ std::string HelpMessage(HelpMessageMode mode) #endif #endif strUsage += HelpMessageOpt("-whitebind=<addr>", _("Bind to given address and whitelist peers connecting to it. Use [host]:port notation for IPv6")); - strUsage += HelpMessageOpt("-whitelist=<netmask>", _("Whitelist peers connecting from the given netmask or IP address. Can be specified multiple times.") + + 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")); strUsage += HelpMessageOpt("-whitelistrelay", strprintf(_("Accept relayed transactions received from whitelisted peers even when not relaying transactions (default: %d)"), DEFAULT_WHITELISTRELAY)); strUsage += HelpMessageOpt("-whitelistforcerelay", strprintf(_("Force relay of transactions from whitelisted peers even if they violate local relay policy (default: %d)"), DEFAULT_WHITELISTFORCERELAY)); @@ -780,10 +781,17 @@ void InitLogging() LogPrintf("Bitcoin version %s\n", FormatFullVersion()); } -/** Initialize bitcoin. - * @pre Parameters should be parsed and config file should be read. - */ -bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) +namespace { // Variables internal to initialization process only + +ServiceFlags nRelevantServices = NODE_NETWORK; +int nMaxConnections; +int nUserMaxConnections; +int nFD; +ServiceFlags nLocalServices = NODE_NETWORK; + +} + +bool AppInitBasicSetup() { // ********************************************************* Step 1: setup #ifdef _MSC_VER @@ -835,9 +843,13 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) // Ignore SIGPIPE, otherwise it will bring the daemon down if the client closes unexpectedly signal(SIGPIPE, SIG_IGN); #endif + return true; +} - // ********************************************************* Step 2: parameter interactions +bool AppInitParameterInteraction() +{ const CChainParams& chainparams = Params(); + // ********************************************************* Step 2: parameter interactions // also see: InitParameterInteraction() @@ -848,13 +860,15 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) } // Make sure enough file descriptors are available - int nBind = std::max((int)mapArgs.count("-bind") + (int)mapArgs.count("-whitebind"), 1); - int nUserMaxConnections = GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS); - int nMaxConnections = std::max(nUserMaxConnections, 0); + int nBind = std::max( + (mapMultiArgs.count("-bind") ? mapMultiArgs.at("-bind").size() : 0) + + (mapMultiArgs.count("-whitebind") ? mapMultiArgs.at("-whitebind").size() : 0), size_t(1)); + nUserMaxConnections = 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)), 0); - int nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS); + nFD = RaiseFileDescriptorLimit(nMaxConnections + MIN_CORE_FILEDESCRIPTORS); if (nFD < MIN_CORE_FILEDESCRIPTORS) return InitError(_("Not enough file descriptors available.")); nMaxConnections = std::min(nFD - MIN_CORE_FILEDESCRIPTORS, nMaxConnections); @@ -912,8 +926,6 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) else if (nScriptCheckThreads > MAX_SCRIPTCHECK_THREADS) nScriptCheckThreads = MAX_SCRIPTCHECK_THREADS; - fServer = GetBoolArg("-server", false); - // block pruning; get the amount of disk space (in MiB) to allot for block & undo files int64_t nSignedPruneTarget = GetArg("-prune", 0) * 1024 * 1024; if (nSignedPruneTarget < 0) { @@ -969,9 +981,6 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) // Option to startup with mocktime set (used for regression testing): SetMockTime(GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op - ServiceFlags nLocalServices = NODE_NETWORK; - ServiceFlags nRelevantServices = NODE_NETWORK; - if (GetBoolArg("-peerbloomfilters", DEFAULT_PEERBLOOMFILTERS)) nLocalServices = ServiceFlags(nLocalServices | NODE_BLOOM); @@ -1020,17 +1029,11 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) } } } + return true; +} - // ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log - - // Initialize elliptic curve code - ECC_Start(); - globalVerifyHandle.reset(new ECCVerifyHandle()); - - // Sanity check - if (!InitSanityCheck()) - return InitError(strprintf(_("Initialization sanity check failed. %s is shutting down."), _(PACKAGE_NAME))); - +static bool LockDataDirectory(bool probeOnly) +{ std::string strDataDir = GetDataDir().string(); // Make sure only a single Bitcoin process is using the data directory. @@ -1040,11 +1043,45 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) try { static boost::interprocess::file_lock lock(pathLockFile.string().c_str()); - if (!lock.try_lock()) + if (!lock.try_lock()) { return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running."), strDataDir, _(PACKAGE_NAME))); + } + if (probeOnly) { + lock.unlock(); + } } catch(const boost::interprocess::interprocess_exception& e) { return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running.") + " %s.", strDataDir, _(PACKAGE_NAME), e.what())); } + return true; +} + +bool AppInitSanityChecks() +{ + // ********************************************************* Step 4: sanity checks + + // Initialize elliptic curve code + ECC_Start(); + globalVerifyHandle.reset(new ECCVerifyHandle()); + + // Sanity check + if (!InitSanityCheck()) + return InitError(strprintf(_("Initialization sanity check failed. %s is shutting down."), _(PACKAGE_NAME))); + + // Probe the data directory lock to give an early error message, if possible + return LockDataDirectory(true); +} + +bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler) +{ + const CChainParams& chainparams = Params(); + // ********************************************************* Step 4a: application initialization + // 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; + } #ifndef WIN32 CreatePidFile(GetPidFile(), getpid()); @@ -1058,7 +1095,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) 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 data directory %s\n", GetDataDir().string()); LogPrintf("Using config file %s\n", GetConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME)).string()); LogPrintf("Using at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD); @@ -1077,7 +1114,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) * that the server is there and will be ready later). Warmup mode will * be disabled when initialisation is finished. */ - if (fServer) + if (GetBoolArg("-server", false)) { uiInterface.InitMessage.connect(SetRPCWarmupStatus); if (!AppInitServers(threadGroup)) diff --git a/src/init.h b/src/init.h index 63e07ccb3..1b87e0ec5 100644 --- a/src/init.h +++ b/src/init.h @@ -25,7 +25,30 @@ void Shutdown(); void InitLogging(); //!Parameter interaction: change current parameters depending on various rules void InitParameterInteraction(); -bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler); + +/** Initialize bitcoin core: Basic context setup. + * @note This can be done before daemonization. + * @pre Parameters should be parsed and config file should be read. + */ +bool AppInitBasicSetup(); +/** + * Initialization: parameter interaction. + * @note This can be done before daemonization. + * @pre Parameters should be parsed and config file should be read, AppInitBasicSetup should have been called. + */ +bool AppInitParameterInteraction(); +/** + * Initialization sanity checks: ecc init, sanity checks, dir lock. + * @note This can be done before daemonization. + * @pre Parameters should be parsed and config file should be read, AppInitParameterInteraction should have been called. + */ +bool AppInitSanityChecks(); +/** + * Bitcoin core main initialization. + * @note This should only be done after daemonization. + * @pre Parameters should be parsed and config file should be read, AppInitSanityChecks should have been called. + */ +bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler); /** The help message mode determines what help message to show */ enum HelpMessageMode { diff --git a/src/miner.cpp b/src/miner.cpp index c40b12cd8..e80e8a265 100644 --- a/src/miner.cpp +++ b/src/miner.cpp @@ -13,7 +13,7 @@ #include "consensus/merkle.h" #include "consensus/validation.h" #include "hash.h" -#include "main.h" +#include "validation.h" #include "net.h" #include "policy/policy.h" #include "pow.h" diff --git a/src/net.cpp b/src/net.cpp index 15c4514f1..27b200b3f 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -74,7 +74,6 @@ bool fRelayTxes = true; CCriticalSection cs_mapLocalHost; std::map<CNetAddr, LocalServiceInfo> mapLocalHost; static bool vfLimited[NET_MAX] = {}; -static CNode* pnodeLocalHost = NULL; std::string strSubVersion; limitedmap<uint256, int64_t> mapAlreadyAskedFor(MAX_INV_SZ); @@ -768,13 +767,13 @@ const uint256& CNetMessage::GetMessageHash() const // requires LOCK(cs_vSend) size_t SocketSendData(CNode *pnode) { - std::deque<CSerializeData>::iterator it = pnode->vSendMsg.begin(); + auto it = pnode->vSendMsg.begin(); size_t nSentSize = 0; while (it != pnode->vSendMsg.end()) { - const CSerializeData &data = *it; + const auto &data = *it; assert(data.size() > pnode->nSendOffset); - int nBytes = send(pnode->hSocket, &data[pnode->nSendOffset], data.size() - pnode->nSendOffset, MSG_NOSIGNAL | MSG_DONTWAIT); + int nBytes = send(pnode->hSocket, reinterpret_cast<const char*>(data.data()) + pnode->nSendOffset, data.size() - pnode->nSendOffset, MSG_NOSIGNAL | MSG_DONTWAIT); if (nBytes > 0) { pnode->nLastSend = GetTime(); pnode->nSendBytes += nBytes; @@ -1067,8 +1066,7 @@ void CConnman::ThreadSocketHandler() pnode->CloseSocketDisconnect(); // hold in disconnected pool until all refs are released - if (pnode->fNetworkNode || pnode->fInbound) - pnode->Release(); + pnode->Release(); vNodesDisconnected.push_back(pnode); } } @@ -1103,8 +1101,13 @@ void CConnman::ThreadSocketHandler() } } } - if(vNodes.size() != nPrevNodeCount) { - nPrevNodeCount = vNodes.size(); + size_t vNodesSize; + { + LOCK(cs_vNodes); + vNodesSize = vNodes.size(); + } + if(vNodesSize != nPrevNodeCount) { + nPrevNodeCount = vNodesSize; if(clientInterface) clientInterface->NotifyNumConnectionsChanged(nPrevNodeCount); } @@ -1808,7 +1811,6 @@ bool CConnman::OpenNetworkConnection(const CAddress& addrConnect, bool fCountFai return false; if (grantOutbound) grantOutbound->MoveTo(pnode->grantOutbound); - pnode->fNetworkNode = true; if (fOneShot) pnode->fOneShot = true; if (fFeeler) @@ -2139,17 +2141,6 @@ bool CConnman::Start(boost::thread_group& threadGroup, CScheduler& scheduler, st semOutbound = new CSemaphore(std::min((nMaxOutbound + nMaxFeeler), nMaxConnections)); } - if (pnodeLocalHost == NULL) { - CNetAddr local; - LookupHost("127.0.0.1", local, false); - - NodeId id = GetNewNodeId(); - uint64_t nonce = GetDeterministicRandomizer(RANDOMIZER_ID_LOCALHOSTNONCE).Write(id).Finalize(); - - pnodeLocalHost = new CNode(id, nLocalServices, GetBestHeight(), INVALID_SOCKET, CAddress(CService(local, 0), nLocalServices), 0, nonce); - GetNodeSignals().InitializeNode(pnodeLocalHost, *this); - } - // // Start threads // @@ -2227,9 +2218,6 @@ void CConnman::Stop() vhListenSocket.clear(); delete semOutbound; semOutbound = NULL; - if(pnodeLocalHost) - DeleteNode(pnodeLocalHost); - pnodeLocalHost = NULL; } void CConnman::DeleteNode(CNode* pnode) @@ -2531,7 +2519,6 @@ CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn fOneShot = false; fClient = false; // set by version message fFeeler = false; - fNetworkNode = false; fSuccessfullyConnected = false; fDisconnect = false; nRefCount = 0; @@ -2612,30 +2599,19 @@ void CNode::AskFor(const CInv& inv) mapAskFor.insert(std::make_pair(nRequestTime, inv)); } -CDataStream CConnman::BeginMessage(CNode* pnode, int nVersion, int flags, const std::string& sCommand) +void CConnman::PushMessage(CNode* pnode, CSerializedNetMsg&& msg) { - return {SER_NETWORK, (nVersion ? nVersion : pnode->GetSendVersion()) | flags, CMessageHeader(Params().MessageStart(), sCommand.c_str(), 0) }; -} - -void CConnman::EndMessage(CDataStream& strm) -{ - // Set the size - assert(strm.size () >= CMessageHeader::HEADER_SIZE); - unsigned int nSize = strm.size() - CMessageHeader::HEADER_SIZE; - WriteLE32((uint8_t*)&strm[CMessageHeader::MESSAGE_SIZE_OFFSET], nSize); - // Set the checksum - uint256 hash = Hash(strm.begin() + CMessageHeader::HEADER_SIZE, strm.end()); - memcpy((char*)&strm[CMessageHeader::CHECKSUM_OFFSET], hash.begin(), CMessageHeader::CHECKSUM_SIZE); - -} + size_t nMessageSize = msg.data.size(); + size_t nTotalSize = nMessageSize + CMessageHeader::HEADER_SIZE; + LogPrint("net", "sending %s (%d bytes) peer=%d\n", SanitizeString(msg.command.c_str()), nMessageSize, pnode->id); -void CConnman::PushMessage(CNode* pnode, CDataStream& strm, const std::string& sCommand) -{ - if(strm.empty()) - return; + std::vector<unsigned char> serializedHeader; + serializedHeader.reserve(CMessageHeader::HEADER_SIZE); + uint256 hash = Hash(msg.data.data(), msg.data.data() + nMessageSize); + CMessageHeader hdr(Params().MessageStart(), msg.command.c_str(), nMessageSize); + memcpy(hdr.pchChecksum, hash.begin(), CMessageHeader::CHECKSUM_SIZE); - unsigned int nSize = strm.size() - CMessageHeader::HEADER_SIZE; - LogPrint("net", "sending %s (%d bytes) peer=%d\n", SanitizeString(sCommand.c_str()), nSize, pnode->id); + CVectorWriter{SER_NETWORK, INIT_PROTO_VERSION, serializedHeader, 0, hdr}; size_t nBytesSent = 0; { @@ -2644,11 +2620,14 @@ void CConnman::PushMessage(CNode* pnode, CDataStream& strm, const std::string& s return; } bool optimisticSend(pnode->vSendMsg.empty()); - pnode->vSendMsg.emplace_back(strm.begin(), strm.end()); //log total amount of bytes per command - pnode->mapSendBytesPerMsgCmd[sCommand] += strm.size(); - pnode->nSendSize += strm.size(); + pnode->mapSendBytesPerMsgCmd[msg.command] += nTotalSize; + pnode->nSendSize += nTotalSize; + + pnode->vSendMsg.push_back(std::move(serializedHeader)); + if (nMessageSize) + pnode->vSendMsg.push_back(std::move(msg.data)); // If write queue empty, attempt "optimistic write" if (optimisticSend == true) @@ -101,6 +101,20 @@ class CTransaction; class CNodeStats; class CClientUIInterface; +struct CSerializedNetMsg +{ + CSerializedNetMsg() = default; + CSerializedNetMsg(CSerializedNetMsg&&) = default; + CSerializedNetMsg& operator=(CSerializedNetMsg&&) = default; + // No copying, only moves. + CSerializedNetMsg(const CSerializedNetMsg& msg) = delete; + CSerializedNetMsg& operator=(const CSerializedNetMsg&) = delete; + + std::vector<unsigned char> data; + std::string command; +}; + + class CConnman { public: @@ -138,32 +152,7 @@ public: bool ForNode(NodeId id, std::function<bool(CNode* pnode)> func); - template <typename... Args> - void PushMessageWithVersionAndFlag(CNode* pnode, int nVersion, int flag, const std::string& sCommand, Args&&... args) - { - auto msg(BeginMessage(pnode, nVersion, flag, sCommand)); - ::SerializeMany(msg, std::forward<Args>(args)...); - EndMessage(msg); - PushMessage(pnode, msg, sCommand); - } - - template <typename... Args> - void PushMessageWithFlag(CNode* pnode, int flag, const std::string& sCommand, Args&&... args) - { - PushMessageWithVersionAndFlag(pnode, 0, flag, sCommand, std::forward<Args>(args)...); - } - - template <typename... Args> - void PushMessageWithVersion(CNode* pnode, int nVersion, const std::string& sCommand, Args&&... args) - { - PushMessageWithVersionAndFlag(pnode, nVersion, 0, sCommand, std::forward<Args>(args)...); - } - - template <typename... Args> - void PushMessage(CNode* pnode, const std::string& sCommand, Args&&... args) - { - PushMessageWithVersionAndFlag(pnode, 0, 0, sCommand, std::forward<Args>(args)...); - } + void PushMessage(CNode* pnode, CSerializedNetMsg&& msg); template<typename Callable> bool ForEachNodeContinueIf(Callable&& func) @@ -374,10 +363,6 @@ private: unsigned int GetReceiveFloodSize() const; - CDataStream BeginMessage(CNode* node, int nVersion, int flags, const std::string& sCommand); - void PushMessage(CNode* pnode, CDataStream& strm, const std::string& sCommand); - void EndMessage(CDataStream& strm); - // Network stats void RecordBytesRecv(uint64_t bytes); void RecordBytesSent(uint64_t bytes); @@ -601,7 +586,7 @@ public: size_t nSendSize; // total size of all vSendMsg entries size_t nSendOffset; // offset inside the first vSendMsg already sent uint64_t nSendBytes; - std::deque<CSerializeData> vSendMsg; + std::deque<std::vector<unsigned char>> vSendMsg; CCriticalSection cs_vSend; std::deque<CInv> vRecvGetData; @@ -628,9 +613,8 @@ public: bool fOneShot; bool fClient; const bool fInbound; - bool fNetworkNode; bool fSuccessfullyConnected; - bool fDisconnect; + std::atomic_bool fDisconnect; // We use fRelayTxes for two purposes - // a) it allows us to not relay tx invs before receiving the peer's version message // b) the peer may tell us in its version message that we should not relay tx invs @@ -771,7 +755,7 @@ public: { // The send version should always be explicitly set to // INIT_PROTO_VERSION rather than using this value until the handshake - // is complete. See PushMessageWithVersion(). + // is complete. assert(nSendVersion != 0); return nSendVersion; } diff --git a/src/net_processing.cpp b/src/net_processing.cpp new file mode 100644 index 000000000..747167264 --- /dev/null +++ b/src/net_processing.cpp @@ -0,0 +1,3026 @@ +// Copyright (c) 2009-2010 Satoshi Nakamoto +// Copyright (c) 2009-2016 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include "net_processing.h" + +#include "addrman.h" +#include "arith_uint256.h" +#include "blockencodings.h" +#include "chainparams.h" +#include "consensus/validation.h" +#include "hash.h" +#include "init.h" +#include "validation.h" +#include "merkleblock.h" +#include "net.h" +#include "netmessagemaker.h" +#include "netbase.h" +#include "policy/fees.h" +#include "policy/policy.h" +#include "primitives/block.h" +#include "primitives/transaction.h" +#include "random.h" +#include "tinyformat.h" +#include "txmempool.h" +#include "ui_interface.h" +#include "util.h" +#include "utilmoneystr.h" +#include "utilstrencodings.h" +#include "validationinterface.h" + +#include <boost/thread.hpp> + +using namespace std; + +#if defined(NDEBUG) +# error "Bitcoin cannot be compiled without assertions." +#endif + +int64_t nTimeBestReceived = 0; // Used only to inform the wallet of when we last received a block + +struct IteratorComparator +{ + template<typename I> + bool operator()(const I& a, const I& b) + { + return &(*a) < &(*b); + } +}; + +struct COrphanTx { + CTransaction tx; + NodeId fromPeer; + int64_t nTimeExpire; +}; +map<uint256, COrphanTx> mapOrphanTransactions GUARDED_BY(cs_main); +map<COutPoint, set<map<uint256, COrphanTx>::iterator, IteratorComparator>> mapOrphanTransactionsByPrev GUARDED_BY(cs_main); +void EraseOrphansFor(NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(cs_main); + +static const uint64_t RANDOMIZER_ID_ADDRESS_RELAY = 0x3cac0035b5866b90ULL; // SHA256("main address relay")[0:8] + +// Internal stuff +namespace { + /** Number of nodes with fSyncStarted. */ + int nSyncStarted = 0; + + /** + * Sources of received blocks, saved to be able to send them reject + * messages or ban them when processing happens afterwards. Protected by + * cs_main. + * Set mapBlockSource[hash].second to false if the node should not be + * punished if the block is invalid. + */ + map<uint256, std::pair<NodeId, bool>> mapBlockSource; + + /** + * Filter for transactions that were recently rejected by + * AcceptToMemoryPool. These are not rerequested until the chain tip + * changes, at which point the entire filter is reset. Protected by + * cs_main. + * + * Without this filter we'd be re-requesting txs from each of our peers, + * increasing bandwidth consumption considerably. For instance, with 100 + * peers, half of which relay a tx we don't accept, that might be a 50x + * bandwidth increase. A flooding attacker attempting to roll-over the + * filter using minimum-sized, 60byte, transactions might manage to send + * 1000/sec if we have fast peers, so we pick 120,000 to give our peers a + * two minute window to send invs to us. + * + * Decreasing the false positive rate is fairly cheap, so we pick one in a + * million to make it highly unlikely for users to have issues with this + * filter. + * + * Memory used: 1.3 MB + */ + std::unique_ptr<CRollingBloomFilter> recentRejects; + uint256 hashRecentRejectsChainTip; + + /** Blocks that are in flight, and that are in the queue to be downloaded. Protected by cs_main. */ + struct QueuedBlock { + uint256 hash; + CBlockIndex* pindex; //!< Optional. + bool fValidatedHeaders; //!< Whether this block has validated headers at the time of request. + std::unique_ptr<PartiallyDownloadedBlock> partialBlock; //!< Optional, used for CMPCTBLOCK downloads + }; + map<uint256, pair<NodeId, list<QueuedBlock>::iterator> > mapBlocksInFlight; + + /** Stack of nodes which we have set to announce using compact blocks */ + list<NodeId> lNodesAnnouncingHeaderAndIDs; + + /** Number of preferable block download peers. */ + int nPreferredDownload = 0; + + /** Number of peers from which we're downloading blocks. */ + int nPeersWithValidatedDownloads = 0; + + /** Relay map, protected by cs_main. */ + typedef std::map<uint256, CTransactionRef> MapRelay; + MapRelay mapRelay; + /** Expiration-time ordered list of (expire time, relay map entry) pairs, protected by cs_main). */ + std::deque<std::pair<int64_t, MapRelay::iterator>> vRelayExpiration; +} // anon namespace + +////////////////////////////////////////////////////////////////////////////// +// +// Registration of network node signals. +// + +namespace { + +struct CBlockReject { + unsigned char chRejectCode; + string strRejectReason; + uint256 hashBlock; +}; + +/** + * Maintain validation-specific state about nodes, protected by cs_main, instead + * by CNode's own locks. This simplifies asynchronous operation, where + * processing of incoming data is done after the ProcessMessage call returns, + * and we're no longer holding the node's locks. + */ +struct CNodeState { + //! The peer's address + const CService address; + //! Whether we have a fully established connection. + bool fCurrentlyConnected; + //! Accumulated misbehaviour score for this peer. + int nMisbehavior; + //! Whether this peer should be disconnected and banned (unless whitelisted). + bool fShouldBan; + //! String name of this peer (debugging/logging purposes). + const std::string name; + //! List of asynchronously-determined block rejections to notify this peer about. + std::vector<CBlockReject> rejects; + //! The best known block we know this peer has announced. + CBlockIndex *pindexBestKnownBlock; + //! The hash of the last unknown block this peer has announced. + uint256 hashLastUnknownBlock; + //! The last full block we both have. + CBlockIndex *pindexLastCommonBlock; + //! The best header we have sent our peer. + CBlockIndex *pindexBestHeaderSent; + //! Length of current-streak of unconnecting headers announcements + int nUnconnectingHeaders; + //! Whether we've started headers synchronization with this peer. + bool fSyncStarted; + //! Since when we're stalling block download progress (in microseconds), or 0. + int64_t nStallingSince; + list<QueuedBlock> vBlocksInFlight; + //! When the first entry in vBlocksInFlight started downloading. Don't care when vBlocksInFlight is empty. + int64_t nDownloadingSince; + int nBlocksInFlight; + int nBlocksInFlightValidHeaders; + //! Whether we consider this a preferred download peer. + bool fPreferredDownload; + //! Whether this peer wants invs or headers (when possible) for block announcements. + bool fPreferHeaders; + //! Whether this peer wants invs or cmpctblocks (when possible) for block announcements. + bool fPreferHeaderAndIDs; + /** + * Whether this peer will send us cmpctblocks if we request them. + * This is not used to gate request logic, as we really only care about fSupportsDesiredCmpctVersion, + * but is used as a flag to "lock in" the version of compact blocks (fWantsCmpctWitness) we send. + */ + bool fProvidesHeaderAndIDs; + //! Whether this peer can give us witnesses + bool fHaveWitness; + //! Whether this peer wants witnesses in cmpctblocks/blocktxns + bool fWantsCmpctWitness; + /** + * If we've announced NODE_WITNESS to this peer: whether the peer sends witnesses in cmpctblocks/blocktxns, + * otherwise: whether this peer sends non-witnesses in cmpctblocks/blocktxns. + */ + bool fSupportsDesiredCmpctVersion; + + CNodeState(CAddress addrIn, std::string addrNameIn) : address(addrIn), name(addrNameIn) { + fCurrentlyConnected = false; + nMisbehavior = 0; + fShouldBan = false; + pindexBestKnownBlock = NULL; + hashLastUnknownBlock.SetNull(); + pindexLastCommonBlock = NULL; + pindexBestHeaderSent = NULL; + nUnconnectingHeaders = 0; + fSyncStarted = false; + nStallingSince = 0; + nDownloadingSince = 0; + nBlocksInFlight = 0; + nBlocksInFlightValidHeaders = 0; + fPreferredDownload = false; + fPreferHeaders = false; + fPreferHeaderAndIDs = false; + fProvidesHeaderAndIDs = false; + fHaveWitness = false; + fWantsCmpctWitness = false; + fSupportsDesiredCmpctVersion = false; + } +}; + +/** Map maintaining per-node state. Requires cs_main. */ +map<NodeId, CNodeState> mapNodeState; + +// Requires cs_main. +CNodeState *State(NodeId pnode) { + map<NodeId, CNodeState>::iterator it = mapNodeState.find(pnode); + if (it == mapNodeState.end()) + return NULL; + return &it->second; +} + +void UpdatePreferredDownload(CNode* node, CNodeState* state) +{ + nPreferredDownload -= state->fPreferredDownload; + + // Whether this node should be marked as a preferred download node. + state->fPreferredDownload = (!node->fInbound || node->fWhitelisted) && !node->fOneShot && !node->fClient; + + nPreferredDownload += state->fPreferredDownload; +} + +void PushNodeVersion(CNode *pnode, CConnman& connman, int64_t nTime) +{ + ServiceFlags nLocalNodeServices = pnode->GetLocalServices(); + uint64_t nonce = pnode->GetLocalNonce(); + int nNodeStartingHeight = pnode->GetMyStartingHeight(); + NodeId nodeid = pnode->GetId(); + CAddress addr = pnode->addr; + + CAddress addrYou = (addr.IsRoutable() && !IsProxy(addr) ? addr : CAddress(CService(), addr.nServices)); + CAddress addrMe = CAddress(CService(), nLocalNodeServices); + + connman.PushMessage(pnode, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::VERSION, PROTOCOL_VERSION, (uint64_t)nLocalNodeServices, nTime, addrYou, addrMe, + nonce, strSubVersion, nNodeStartingHeight, ::fRelayTxes)); + + if (fLogIPs) + LogPrint("net", "send version message: version %d, blocks=%d, us=%s, them=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), addrYou.ToString(), nodeid); + else + LogPrint("net", "send version message: version %d, blocks=%d, us=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), nodeid); +} + +void InitializeNode(CNode *pnode, CConnman& connman) { + CAddress addr = pnode->addr; + std::string addrName = pnode->addrName; + NodeId nodeid = pnode->GetId(); + { + LOCK(cs_main); + mapNodeState.emplace_hint(mapNodeState.end(), std::piecewise_construct, std::forward_as_tuple(nodeid), std::forward_as_tuple(addr, std::move(addrName))); + } + if(!pnode->fInbound) + PushNodeVersion(pnode, connman, GetTime()); +} + +void FinalizeNode(NodeId nodeid, bool& fUpdateConnectionTime) { + fUpdateConnectionTime = false; + LOCK(cs_main); + CNodeState *state = State(nodeid); + + if (state->fSyncStarted) + nSyncStarted--; + + if (state->nMisbehavior == 0 && state->fCurrentlyConnected) { + fUpdateConnectionTime = true; + } + + BOOST_FOREACH(const QueuedBlock& entry, state->vBlocksInFlight) { + mapBlocksInFlight.erase(entry.hash); + } + EraseOrphansFor(nodeid); + nPreferredDownload -= state->fPreferredDownload; + nPeersWithValidatedDownloads -= (state->nBlocksInFlightValidHeaders != 0); + assert(nPeersWithValidatedDownloads >= 0); + + mapNodeState.erase(nodeid); + + if (mapNodeState.empty()) { + // Do a consistency check after the last peer is removed. + assert(mapBlocksInFlight.empty()); + assert(nPreferredDownload == 0); + assert(nPeersWithValidatedDownloads == 0); + } +} + +// Requires cs_main. +// Returns a bool indicating whether we requested this block. +// Also used if a block was /not/ received and timed out or started with another peer +bool MarkBlockAsReceived(const uint256& hash) { + map<uint256, pair<NodeId, list<QueuedBlock>::iterator> >::iterator itInFlight = mapBlocksInFlight.find(hash); + if (itInFlight != mapBlocksInFlight.end()) { + CNodeState *state = State(itInFlight->second.first); + state->nBlocksInFlightValidHeaders -= itInFlight->second.second->fValidatedHeaders; + if (state->nBlocksInFlightValidHeaders == 0 && itInFlight->second.second->fValidatedHeaders) { + // Last validated block on the queue was received. + nPeersWithValidatedDownloads--; + } + if (state->vBlocksInFlight.begin() == itInFlight->second.second) { + // First block on the queue was received, update the start download time for the next one + state->nDownloadingSince = std::max(state->nDownloadingSince, GetTimeMicros()); + } + state->vBlocksInFlight.erase(itInFlight->second.second); + state->nBlocksInFlight--; + state->nStallingSince = 0; + mapBlocksInFlight.erase(itInFlight); + return true; + } + return false; +} + +// Requires cs_main. +// returns false, still setting pit, if the block was already in flight from the same peer +// pit will only be valid as long as the same cs_main lock is being held +bool MarkBlockAsInFlight(NodeId nodeid, const uint256& hash, const Consensus::Params& consensusParams, CBlockIndex *pindex = NULL, list<QueuedBlock>::iterator **pit = NULL) { + CNodeState *state = State(nodeid); + assert(state != NULL); + + // Short-circuit most stuff in case its from the same node + map<uint256, pair<NodeId, list<QueuedBlock>::iterator> >::iterator itInFlight = mapBlocksInFlight.find(hash); + if (itInFlight != mapBlocksInFlight.end() && itInFlight->second.first == nodeid) { + *pit = &itInFlight->second.second; + return false; + } + + // Make sure it's not listed somewhere already. + MarkBlockAsReceived(hash); + + list<QueuedBlock>::iterator it = state->vBlocksInFlight.insert(state->vBlocksInFlight.end(), + {hash, pindex, pindex != NULL, std::unique_ptr<PartiallyDownloadedBlock>(pit ? new PartiallyDownloadedBlock(&mempool) : NULL)}); + state->nBlocksInFlight++; + state->nBlocksInFlightValidHeaders += it->fValidatedHeaders; + if (state->nBlocksInFlight == 1) { + // We're starting a block download (batch) from this peer. + state->nDownloadingSince = GetTimeMicros(); + } + if (state->nBlocksInFlightValidHeaders == 1 && pindex != NULL) { + nPeersWithValidatedDownloads++; + } + itInFlight = mapBlocksInFlight.insert(std::make_pair(hash, std::make_pair(nodeid, it))).first; + if (pit) + *pit = &itInFlight->second.second; + return true; +} + +/** Check whether the last unknown block a peer advertised is not yet known. */ +void ProcessBlockAvailability(NodeId nodeid) { + CNodeState *state = State(nodeid); + assert(state != NULL); + + if (!state->hashLastUnknownBlock.IsNull()) { + BlockMap::iterator itOld = mapBlockIndex.find(state->hashLastUnknownBlock); + if (itOld != mapBlockIndex.end() && itOld->second->nChainWork > 0) { + if (state->pindexBestKnownBlock == NULL || itOld->second->nChainWork >= state->pindexBestKnownBlock->nChainWork) + state->pindexBestKnownBlock = itOld->second; + state->hashLastUnknownBlock.SetNull(); + } + } +} + +/** Update tracking information about which blocks a peer is assumed to have. */ +void UpdateBlockAvailability(NodeId nodeid, const uint256 &hash) { + CNodeState *state = State(nodeid); + assert(state != NULL); + + ProcessBlockAvailability(nodeid); + + BlockMap::iterator it = mapBlockIndex.find(hash); + if (it != mapBlockIndex.end() && it->second->nChainWork > 0) { + // An actually better block was announced. + if (state->pindexBestKnownBlock == NULL || it->second->nChainWork >= state->pindexBestKnownBlock->nChainWork) + state->pindexBestKnownBlock = it->second; + } else { + // An unknown block was announced; just assume that the latest one is the best one. + state->hashLastUnknownBlock = hash; + } +} + +void MaybeSetPeerAsAnnouncingHeaderAndIDs(const CNodeState* nodestate, CNode* pfrom, CConnman& connman) { + if (!nodestate->fSupportsDesiredCmpctVersion) { + // Never ask from peers who can't provide witnesses. + return; + } + if (nodestate->fProvidesHeaderAndIDs) { + for (std::list<NodeId>::iterator it = lNodesAnnouncingHeaderAndIDs.begin(); it != lNodesAnnouncingHeaderAndIDs.end(); it++) { + if (*it == pfrom->GetId()) { + lNodesAnnouncingHeaderAndIDs.erase(it); + lNodesAnnouncingHeaderAndIDs.push_back(pfrom->GetId()); + return; + } + } + bool fAnnounceUsingCMPCTBLOCK = false; + uint64_t nCMPCTBLOCKVersion = (pfrom->GetLocalServices() & NODE_WITNESS) ? 2 : 1; + if (lNodesAnnouncingHeaderAndIDs.size() >= 3) { + // As per BIP152, we only get 3 of our peers to announce + // blocks using compact encodings. + connman.ForNode(lNodesAnnouncingHeaderAndIDs.front(), [&connman, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion](CNode* pnodeStop){ + connman.PushMessage(pnodeStop, CNetMsgMaker(pnodeStop->GetSendVersion()).Make(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion)); + return true; + }); + lNodesAnnouncingHeaderAndIDs.pop_front(); + } + fAnnounceUsingCMPCTBLOCK = true; + connman.PushMessage(pfrom, CNetMsgMaker(pfrom->GetSendVersion()).Make(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion)); + lNodesAnnouncingHeaderAndIDs.push_back(pfrom->GetId()); + } +} + +// Requires cs_main +bool CanDirectFetch(const Consensus::Params &consensusParams) +{ + return chainActive.Tip()->GetBlockTime() > GetAdjustedTime() - consensusParams.nPowTargetSpacing * 20; +} + +// Requires cs_main +bool PeerHasHeader(CNodeState *state, CBlockIndex *pindex) +{ + if (state->pindexBestKnownBlock && pindex == state->pindexBestKnownBlock->GetAncestor(pindex->nHeight)) + return true; + if (state->pindexBestHeaderSent && pindex == state->pindexBestHeaderSent->GetAncestor(pindex->nHeight)) + return true; + return false; +} + +/** Find the last common ancestor two blocks have. + * Both pa and pb must be non-NULL. */ +CBlockIndex* LastCommonAncestor(CBlockIndex* pa, CBlockIndex* pb) { + if (pa->nHeight > pb->nHeight) { + pa = pa->GetAncestor(pb->nHeight); + } else if (pb->nHeight > pa->nHeight) { + pb = pb->GetAncestor(pa->nHeight); + } + + while (pa != pb && pa && pb) { + pa = pa->pprev; + pb = pb->pprev; + } + + // Eventually all chain branches meet at the genesis block. + assert(pa == pb); + return pa; +} + +/** Update pindexLastCommonBlock and add not-in-flight missing successors to vBlocks, until it has + * at most count entries. */ +void FindNextBlocksToDownload(NodeId nodeid, unsigned int count, std::vector<CBlockIndex*>& vBlocks, NodeId& nodeStaller, const Consensus::Params& consensusParams) { + if (count == 0) + return; + + vBlocks.reserve(vBlocks.size() + count); + CNodeState *state = State(nodeid); + assert(state != NULL); + + // Make sure pindexBestKnownBlock is up to date, we'll need it. + ProcessBlockAvailability(nodeid); + + if (state->pindexBestKnownBlock == NULL || state->pindexBestKnownBlock->nChainWork < chainActive.Tip()->nChainWork) { + // This peer has nothing interesting. + return; + } + + if (state->pindexLastCommonBlock == NULL) { + // Bootstrap quickly by guessing a parent of our best tip is the forking point. + // Guessing wrong in either direction is not a problem. + state->pindexLastCommonBlock = chainActive[std::min(state->pindexBestKnownBlock->nHeight, chainActive.Height())]; + } + + // If the peer reorganized, our previous pindexLastCommonBlock may not be an ancestor + // of its current tip anymore. Go back enough to fix that. + state->pindexLastCommonBlock = LastCommonAncestor(state->pindexLastCommonBlock, state->pindexBestKnownBlock); + if (state->pindexLastCommonBlock == state->pindexBestKnownBlock) + return; + + std::vector<CBlockIndex*> vToFetch; + CBlockIndex *pindexWalk = state->pindexLastCommonBlock; + // Never fetch further than the best block we know the peer has, or more than BLOCK_DOWNLOAD_WINDOW + 1 beyond the last + // linked block we have in common with this peer. The +1 is so we can detect stalling, namely if we would be able to + // download that next block if the window were 1 larger. + int nWindowEnd = state->pindexLastCommonBlock->nHeight + BLOCK_DOWNLOAD_WINDOW; + int nMaxHeight = std::min<int>(state->pindexBestKnownBlock->nHeight, nWindowEnd + 1); + NodeId waitingfor = -1; + while (pindexWalk->nHeight < nMaxHeight) { + // Read up to 128 (or more, if more blocks than that are needed) successors of pindexWalk (towards + // pindexBestKnownBlock) into vToFetch. We fetch 128, because CBlockIndex::GetAncestor may be as expensive + // as iterating over ~100 CBlockIndex* entries anyway. + int nToFetch = std::min(nMaxHeight - pindexWalk->nHeight, std::max<int>(count - vBlocks.size(), 128)); + vToFetch.resize(nToFetch); + pindexWalk = state->pindexBestKnownBlock->GetAncestor(pindexWalk->nHeight + nToFetch); + vToFetch[nToFetch - 1] = pindexWalk; + for (unsigned int i = nToFetch - 1; i > 0; i--) { + vToFetch[i - 1] = vToFetch[i]->pprev; + } + + // Iterate over those blocks in vToFetch (in forward direction), adding the ones that + // are not yet downloaded and not in flight to vBlocks. In the mean time, update + // pindexLastCommonBlock as long as all ancestors are already downloaded, or if it's + // already part of our chain (and therefore don't need it even if pruned). + BOOST_FOREACH(CBlockIndex* pindex, vToFetch) { + if (!pindex->IsValid(BLOCK_VALID_TREE)) { + // We consider the chain that this peer is on invalid. + return; + } + if (!State(nodeid)->fHaveWitness && IsWitnessEnabled(pindex->pprev, consensusParams)) { + // We wouldn't download this block or its descendants from this peer. + return; + } + if (pindex->nStatus & BLOCK_HAVE_DATA || chainActive.Contains(pindex)) { + if (pindex->nChainTx) + state->pindexLastCommonBlock = pindex; + } else if (mapBlocksInFlight.count(pindex->GetBlockHash()) == 0) { + // The block is not already downloaded, and not yet in flight. + if (pindex->nHeight > nWindowEnd) { + // We reached the end of the window. + if (vBlocks.size() == 0 && waitingfor != nodeid) { + // We aren't able to fetch anything, but we would be if the download window was one larger. + nodeStaller = waitingfor; + } + return; + } + vBlocks.push_back(pindex); + if (vBlocks.size() == count) { + return; + } + } else if (waitingfor == -1) { + // This is the first already-in-flight block. + waitingfor = mapBlocksInFlight[pindex->GetBlockHash()].first; + } + } + } +} + +} // anon namespace + +bool GetNodeStateStats(NodeId nodeid, CNodeStateStats &stats) { + LOCK(cs_main); + CNodeState *state = State(nodeid); + if (state == NULL) + return false; + stats.nMisbehavior = state->nMisbehavior; + stats.nSyncHeight = state->pindexBestKnownBlock ? state->pindexBestKnownBlock->nHeight : -1; + stats.nCommonHeight = state->pindexLastCommonBlock ? state->pindexLastCommonBlock->nHeight : -1; + BOOST_FOREACH(const QueuedBlock& queue, state->vBlocksInFlight) { + if (queue.pindex) + stats.vHeightInFlight.push_back(queue.pindex->nHeight); + } + return true; +} + +void RegisterNodeSignals(CNodeSignals& nodeSignals) +{ + nodeSignals.ProcessMessages.connect(&ProcessMessages); + nodeSignals.SendMessages.connect(&SendMessages); + nodeSignals.InitializeNode.connect(&InitializeNode); + nodeSignals.FinalizeNode.connect(&FinalizeNode); +} + +void UnregisterNodeSignals(CNodeSignals& nodeSignals) +{ + nodeSignals.ProcessMessages.disconnect(&ProcessMessages); + nodeSignals.SendMessages.disconnect(&SendMessages); + nodeSignals.InitializeNode.disconnect(&InitializeNode); + nodeSignals.FinalizeNode.disconnect(&FinalizeNode); +} + +////////////////////////////////////////////////////////////////////////////// +// +// mapOrphanTransactions +// + +bool AddOrphanTx(const CTransaction& tx, NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(cs_main) +{ + uint256 hash = tx.GetHash(); + if (mapOrphanTransactions.count(hash)) + return false; + + // Ignore big transactions, to avoid a + // send-big-orphans memory exhaustion attack. If a peer has a legitimate + // large transaction with a missing parent then we assume + // it will rebroadcast it later, after the parent transaction(s) + // have been mined or received. + // 100 orphans, each of which is at most 99,999 bytes big is + // at most 10 megabytes of orphans and somewhat more byprev index (in the worst case): + unsigned int sz = GetTransactionWeight(tx); + if (sz >= MAX_STANDARD_TX_WEIGHT) + { + LogPrint("mempool", "ignoring large orphan tx (size: %u, hash: %s)\n", sz, hash.ToString()); + return false; + } + + auto ret = mapOrphanTransactions.emplace(hash, COrphanTx{tx, peer, GetTime() + ORPHAN_TX_EXPIRE_TIME}); + assert(ret.second); + BOOST_FOREACH(const CTxIn& txin, tx.vin) { + mapOrphanTransactionsByPrev[txin.prevout].insert(ret.first); + } + + LogPrint("mempool", "stored orphan tx %s (mapsz %u outsz %u)\n", hash.ToString(), + mapOrphanTransactions.size(), mapOrphanTransactionsByPrev.size()); + return true; +} + +int static EraseOrphanTx(uint256 hash) EXCLUSIVE_LOCKS_REQUIRED(cs_main) +{ + map<uint256, COrphanTx>::iterator it = mapOrphanTransactions.find(hash); + if (it == mapOrphanTransactions.end()) + return 0; + BOOST_FOREACH(const CTxIn& txin, it->second.tx.vin) + { + auto itPrev = mapOrphanTransactionsByPrev.find(txin.prevout); + if (itPrev == mapOrphanTransactionsByPrev.end()) + continue; + itPrev->second.erase(it); + if (itPrev->second.empty()) + mapOrphanTransactionsByPrev.erase(itPrev); + } + mapOrphanTransactions.erase(it); + return 1; +} + +void EraseOrphansFor(NodeId peer) +{ + int nErased = 0; + map<uint256, COrphanTx>::iterator iter = mapOrphanTransactions.begin(); + while (iter != mapOrphanTransactions.end()) + { + map<uint256, COrphanTx>::iterator maybeErase = iter++; // increment to avoid iterator becoming invalid + if (maybeErase->second.fromPeer == peer) + { + nErased += EraseOrphanTx(maybeErase->second.tx.GetHash()); + } + } + if (nErased > 0) LogPrint("mempool", "Erased %d orphan tx from peer %d\n", nErased, peer); +} + + +unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans) EXCLUSIVE_LOCKS_REQUIRED(cs_main) +{ + unsigned int nEvicted = 0; + static int64_t nNextSweep; + int64_t nNow = GetTime(); + if (nNextSweep <= nNow) { + // Sweep out expired orphan pool entries: + int nErased = 0; + int64_t nMinExpTime = nNow + ORPHAN_TX_EXPIRE_TIME - ORPHAN_TX_EXPIRE_INTERVAL; + map<uint256, COrphanTx>::iterator iter = mapOrphanTransactions.begin(); + while (iter != mapOrphanTransactions.end()) + { + map<uint256, COrphanTx>::iterator maybeErase = iter++; + if (maybeErase->second.nTimeExpire <= nNow) { + nErased += EraseOrphanTx(maybeErase->second.tx.GetHash()); + } else { + nMinExpTime = std::min(maybeErase->second.nTimeExpire, nMinExpTime); + } + } + // Sweep again 5 minutes after the next entry that expires in order to batch the linear scan. + nNextSweep = nMinExpTime + ORPHAN_TX_EXPIRE_INTERVAL; + if (nErased > 0) LogPrint("mempool", "Erased %d orphan tx due to expiration\n", nErased); + } + while (mapOrphanTransactions.size() > nMaxOrphans) + { + // Evict a random orphan: + uint256 randomhash = GetRandHash(); + map<uint256, COrphanTx>::iterator it = mapOrphanTransactions.lower_bound(randomhash); + if (it == mapOrphanTransactions.end()) + it = mapOrphanTransactions.begin(); + EraseOrphanTx(it->first); + ++nEvicted; + } + return nEvicted; +} + +// Requires cs_main. +void Misbehaving(NodeId pnode, int howmuch) +{ + if (howmuch == 0) + return; + + CNodeState *state = State(pnode); + if (state == NULL) + return; + + state->nMisbehavior += howmuch; + int banscore = GetArg("-banscore", DEFAULT_BANSCORE_THRESHOLD); + if (state->nMisbehavior >= banscore && state->nMisbehavior - howmuch < banscore) + { + LogPrintf("%s: %s peer=%d (%d -> %d) BAN THRESHOLD EXCEEDED\n", __func__, state->name, pnode, state->nMisbehavior-howmuch, state->nMisbehavior); + state->fShouldBan = true; + } else + LogPrintf("%s: %s peer=%d (%d -> %d)\n", __func__, state->name, pnode, state->nMisbehavior-howmuch, state->nMisbehavior); +} + + + + + + + + +////////////////////////////////////////////////////////////////////////////// +// +// blockchain -> download logic notification +// + +PeerLogicValidation::PeerLogicValidation(CConnman* connmanIn) : connman(connmanIn) { + // Initialize global variables that cannot be constructed at startup. + recentRejects.reset(new CRollingBloomFilter(120000, 0.000001)); +} + +void PeerLogicValidation::SyncTransaction(const CTransaction& tx, const CBlockIndex* pindex, int nPosInBlock) { + if (nPosInBlock == CMainSignals::SYNC_TRANSACTION_NOT_IN_BLOCK) + return; + + LOCK(cs_main); + + std::vector<uint256> vOrphanErase; + // Which orphan pool entries must we evict? + for (size_t j = 0; j < tx.vin.size(); j++) { + auto itByPrev = mapOrphanTransactionsByPrev.find(tx.vin[j].prevout); + if (itByPrev == mapOrphanTransactionsByPrev.end()) continue; + for (auto mi = itByPrev->second.begin(); mi != itByPrev->second.end(); ++mi) { + const CTransaction& orphanTx = (*mi)->second.tx; + const uint256& orphanHash = orphanTx.GetHash(); + vOrphanErase.push_back(orphanHash); + } + } + + // Erase orphan transactions include or precluded by this block + if (vOrphanErase.size()) { + int nErased = 0; + BOOST_FOREACH(uint256 &orphanHash, vOrphanErase) { + nErased += EraseOrphanTx(orphanHash); + } + LogPrint("mempool", "Erased %d orphan tx included or conflicted by block\n", nErased); + } +} + +void PeerLogicValidation::UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) { + const int nNewHeight = pindexNew->nHeight; + connman->SetBestHeight(nNewHeight); + + if (!fInitialDownload) { + // Find the hashes of all blocks that weren't previously in the best chain. + std::vector<uint256> vHashes; + const CBlockIndex *pindexToAnnounce = pindexNew; + while (pindexToAnnounce != pindexFork) { + vHashes.push_back(pindexToAnnounce->GetBlockHash()); + pindexToAnnounce = pindexToAnnounce->pprev; + if (vHashes.size() == MAX_BLOCKS_TO_ANNOUNCE) { + // Limit announcements in case of a huge reorganization. + // Rely on the peer's synchronization mechanism in that case. + break; + } + } + // Relay inventory, but don't relay old inventory during initial block download. + connman->ForEachNode([nNewHeight, &vHashes](CNode* pnode) { + if (nNewHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 0)) { + BOOST_REVERSE_FOREACH(const uint256& hash, vHashes) { + pnode->PushBlockHash(hash); + } + } + }); + } + + nTimeBestReceived = GetTime(); +} + +void PeerLogicValidation::BlockChecked(const CBlock& block, const CValidationState& state) { + LOCK(cs_main); + + const uint256 hash(block.GetHash()); + std::map<uint256, std::pair<NodeId, bool>>::iterator it = mapBlockSource.find(hash); + + int nDoS = 0; + if (state.IsInvalid(nDoS)) { + if (it != mapBlockSource.end() && State(it->second.first)) { + assert (state.GetRejectCode() < REJECT_INTERNAL); // Blocks are never rejected with internal reject codes + CBlockReject reject = {(unsigned char)state.GetRejectCode(), state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), hash}; + State(it->second.first)->rejects.push_back(reject); + if (nDoS > 0 && it->second.second) + Misbehaving(it->second.first, nDoS); + } + } + if (it != mapBlockSource.end()) + mapBlockSource.erase(it); +} + +////////////////////////////////////////////////////////////////////////////// +// +// Messages +// + + +bool static AlreadyHave(const CInv& inv) EXCLUSIVE_LOCKS_REQUIRED(cs_main) +{ + switch (inv.type) + { + case MSG_TX: + case MSG_WITNESS_TX: + { + assert(recentRejects); + if (chainActive.Tip()->GetBlockHash() != hashRecentRejectsChainTip) + { + // If the chain tip has changed previously rejected transactions + // might be now valid, e.g. due to a nLockTime'd tx becoming valid, + // or a double-spend. Reset the rejects filter and give those + // txs a second chance. + hashRecentRejectsChainTip = chainActive.Tip()->GetBlockHash(); + recentRejects->reset(); + } + + // Use pcoinsTip->HaveCoinsInCache as a quick approximation to exclude + // requesting or processing some txs which have already been included in a block + return recentRejects->contains(inv.hash) || + mempool.exists(inv.hash) || + mapOrphanTransactions.count(inv.hash) || + pcoinsTip->HaveCoinsInCache(inv.hash); + } + case MSG_BLOCK: + case MSG_WITNESS_BLOCK: + return mapBlockIndex.count(inv.hash); + } + // Don't know what it is, just say we already got one + return true; +} + +static void RelayTransaction(const CTransaction& tx, CConnman& connman) +{ + CInv inv(MSG_TX, tx.GetHash()); + connman.ForEachNode([&inv](CNode* pnode) + { + pnode->PushInventory(inv); + }); +} + +static void RelayAddress(const CAddress& addr, bool fReachable, CConnman& connman) +{ + unsigned int nRelayNodes = fReachable ? 2 : 1; // limited relaying of addresses outside our network(s) + + // Relay to a limited number of other nodes + // Use deterministic randomness to send to the same nodes for 24 hours + // at a time so the addrKnowns of the chosen nodes prevent repeats + uint64_t hashAddr = addr.GetHash(); + const CSipHasher hasher = connman.GetDeterministicRandomizer(RANDOMIZER_ID_ADDRESS_RELAY).Write(hashAddr << 32).Write((GetTime() + hashAddr) / (24*60*60)); + FastRandomContext insecure_rand; + + std::array<std::pair<uint64_t, CNode*>,2> best{{{0, nullptr}, {0, nullptr}}}; + assert(nRelayNodes <= best.size()); + + auto sortfunc = [&best, &hasher, nRelayNodes](CNode* pnode) { + if (pnode->nVersion >= CADDR_TIME_VERSION) { + uint64_t hashKey = CSipHasher(hasher).Write(pnode->id).Finalize(); + for (unsigned int i = 0; i < nRelayNodes; i++) { + if (hashKey > best[i].first) { + std::copy(best.begin() + i, best.begin() + nRelayNodes - 1, best.begin() + i + 1); + best[i] = std::make_pair(hashKey, pnode); + break; + } + } + } + }; + + auto pushfunc = [&addr, &best, nRelayNodes, &insecure_rand] { + for (unsigned int i = 0; i < nRelayNodes && best[i].first != 0; i++) { + best[i].second->PushAddress(addr, insecure_rand); + } + }; + + connman.ForEachNodeThen(std::move(sortfunc), std::move(pushfunc)); +} + +void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParams, CConnman& connman) +{ + std::deque<CInv>::iterator it = pfrom->vRecvGetData.begin(); + unsigned int nMaxSendBufferSize = connman.GetSendBufferSize(); + vector<CInv> vNotFound; + CNetMsgMaker msgMaker(pfrom->GetSendVersion()); + LOCK(cs_main); + + while (it != pfrom->vRecvGetData.end()) { + // Don't bother if send buffer is too full to respond anyway + if (pfrom->nSendSize >= nMaxSendBufferSize) + break; + + const CInv &inv = *it; + { + boost::this_thread::interruption_point(); + it++; + + if (inv.type == MSG_BLOCK || inv.type == MSG_FILTERED_BLOCK || inv.type == MSG_CMPCT_BLOCK || inv.type == MSG_WITNESS_BLOCK) + { + bool send = false; + BlockMap::iterator mi = mapBlockIndex.find(inv.hash); + if (mi != mapBlockIndex.end()) + { + if (chainActive.Contains(mi->second)) { + send = true; + } else { + static const int nOneMonth = 30 * 24 * 60 * 60; + // To prevent fingerprinting attacks, only send blocks outside of the active + // chain if they are valid, and no more than a month older (both in time, and in + // best equivalent proof of work) than the best header chain we know about. + send = mi->second->IsValid(BLOCK_VALID_SCRIPTS) && (pindexBestHeader != NULL) && + (pindexBestHeader->GetBlockTime() - mi->second->GetBlockTime() < nOneMonth) && + (GetBlockProofEquivalentTime(*pindexBestHeader, *mi->second, *pindexBestHeader, consensusParams) < nOneMonth); + if (!send) { + LogPrintf("%s: ignoring request from peer=%i for old block that isn't in the main chain\n", __func__, pfrom->GetId()); + } + } + } + // disconnect node in case we have reached the outbound limit for serving historical blocks + // never disconnect whitelisted nodes + static const int nOneWeek = 7 * 24 * 60 * 60; // assume > 1 week = historical + if (send && connman.OutboundTargetReached(true) && ( ((pindexBestHeader != NULL) && (pindexBestHeader->GetBlockTime() - mi->second->GetBlockTime() > nOneWeek)) || inv.type == MSG_FILTERED_BLOCK) && !pfrom->fWhitelisted) + { + LogPrint("net", "historical block serving limit reached, disconnect peer=%d\n", pfrom->GetId()); + + //disconnect node + pfrom->fDisconnect = true; + send = false; + } + // Pruned nodes may have deleted the block, so check whether + // it's available before trying to send. + if (send && (mi->second->nStatus & BLOCK_HAVE_DATA)) + { + // Send block from disk + CBlock block; + if (!ReadBlockFromDisk(block, (*mi).second, consensusParams)) + assert(!"cannot load block from disk"); + if (inv.type == MSG_BLOCK) + connman.PushMessage(pfrom, msgMaker.Make(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block)); + else if (inv.type == MSG_WITNESS_BLOCK) + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::BLOCK, block)); + else if (inv.type == MSG_FILTERED_BLOCK) + { + bool sendMerkleBlock = false; + CMerkleBlock merkleBlock; + { + LOCK(pfrom->cs_filter); + if (pfrom->pfilter) { + sendMerkleBlock = true; + merkleBlock = CMerkleBlock(block, *pfrom->pfilter); + } + } + if (sendMerkleBlock) { + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::MERKLEBLOCK, merkleBlock)); + // CMerkleBlock just contains hashes, so also push any transactions in the block the client did not see + // This avoids hurting performance by pointlessly requiring a round-trip + // Note that there is currently no way for a node to request any single transactions we didn't send here - + // they must either disconnect and retry or request the full block. + // Thus, the protocol spec specified allows for us to provide duplicate txn here, + // however we MUST always provide at least what the remote peer needs + typedef std::pair<unsigned int, uint256> PairType; + BOOST_FOREACH(PairType& pair, merkleBlock.vMatchedTxn) + connman.PushMessage(pfrom, msgMaker.Make(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::TX, *block.vtx[pair.first])); + } + // else + // no response + } + else if (inv.type == MSG_CMPCT_BLOCK) + { + // If a peer is asking for old blocks, we're almost guaranteed + // they won't have a useful mempool to match against a compact block, + // and we don't feel like constructing the object for them, so + // instead we respond with the full, non-compact block. + bool fPeerWantsWitness = State(pfrom->GetId())->fWantsCmpctWitness; + int nSendFlags = fPeerWantsWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS; + if (CanDirectFetch(consensusParams) && mi->second->nHeight >= chainActive.Height() - MAX_CMPCTBLOCK_DEPTH) { + CBlockHeaderAndShortTxIDs cmpctblock(block, fPeerWantsWitness); + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::CMPCTBLOCK, cmpctblock)); + } else + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::BLOCK, block)); + } + + // Trigger the peer node to send a getblocks request for the next batch of inventory + if (inv.hash == pfrom->hashContinue) + { + // Bypass PushInventory, this must send even if redundant, + // and we want it right after the last block so they don't + // wait for other stuff first. + vector<CInv> vInv; + vInv.push_back(CInv(MSG_BLOCK, chainActive.Tip()->GetBlockHash())); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::INV, vInv)); + pfrom->hashContinue.SetNull(); + } + } + } + else if (inv.type == MSG_TX || inv.type == MSG_WITNESS_TX) + { + // Send stream from relay memory + bool push = false; + auto mi = mapRelay.find(inv.hash); + int nSendFlags = (inv.type == MSG_TX ? SERIALIZE_TRANSACTION_NO_WITNESS : 0); + if (mi != mapRelay.end()) { + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::TX, *mi->second)); + push = true; + } else if (pfrom->timeLastMempoolReq) { + auto txinfo = mempool.info(inv.hash); + // To protect privacy, do not answer getdata using the mempool when + // that TX couldn't have been INVed in reply to a MEMPOOL request. + if (txinfo.tx && txinfo.nTime <= pfrom->timeLastMempoolReq) { + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::TX, *txinfo.tx)); + push = true; + } + } + if (!push) { + vNotFound.push_back(inv); + } + } + + // Track requests for our stuff. + GetMainSignals().Inventory(inv.hash); + + if (inv.type == MSG_BLOCK || inv.type == MSG_FILTERED_BLOCK || inv.type == MSG_CMPCT_BLOCK || inv.type == MSG_WITNESS_BLOCK) + break; + } + } + + pfrom->vRecvGetData.erase(pfrom->vRecvGetData.begin(), it); + + if (!vNotFound.empty()) { + // Let the peer know that we didn't find what it asked for, so it doesn't + // have to wait around forever. Currently only SPV clients actually care + // about this message: it's needed when they are recursively walking the + // dependencies of relevant unconfirmed transactions. SPV clients want to + // do that because they want to know about (and store and rebroadcast and + // risk analyze) the dependencies of transactions relevant to them, without + // having to download the entire memory pool. + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::NOTFOUND, vNotFound)); + } +} + +uint32_t GetFetchFlags(CNode* pfrom, CBlockIndex* pprev, const Consensus::Params& chainparams) { + uint32_t nFetchFlags = 0; + if ((pfrom->GetLocalServices() & NODE_WITNESS) && State(pfrom->GetId())->fHaveWitness) { + nFetchFlags |= MSG_WITNESS_FLAG; + } + return nFetchFlags; +} + +bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, int64_t nTimeReceived, const CChainParams& chainparams, CConnman& connman) +{ + unsigned int nMaxSendBufferSize = connman.GetSendBufferSize(); + + LogPrint("net", "received: %s (%u bytes) peer=%d\n", SanitizeString(strCommand), vRecv.size(), pfrom->id); + if (mapArgs.count("-dropmessagestest") && GetRand(atoi(mapArgs["-dropmessagestest"])) == 0) + { + LogPrintf("dropmessagestest DROPPING RECV MESSAGE\n"); + return true; + } + + + if (!(pfrom->GetLocalServices() & NODE_BLOOM) && + (strCommand == NetMsgType::FILTERLOAD || + strCommand == NetMsgType::FILTERADD)) + { + if (pfrom->nVersion >= NO_BLOOM_VERSION) { + LOCK(cs_main); + Misbehaving(pfrom->GetId(), 100); + return false; + } else { + pfrom->fDisconnect = true; + return false; + } + } + + + if (strCommand == NetMsgType::VERSION) + { + // Each connection can only send one version message + if (pfrom->nVersion != 0) + { + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_DUPLICATE, string("Duplicate version message"))); + LOCK(cs_main); + Misbehaving(pfrom->GetId(), 1); + return false; + } + + int64_t nTime; + CAddress addrMe; + CAddress addrFrom; + uint64_t nNonce = 1; + uint64_t nServiceInt; + vRecv >> pfrom->nVersion >> nServiceInt >> nTime >> addrMe; + pfrom->nServices = ServiceFlags(nServiceInt); + if (!pfrom->fInbound) + { + connman.SetServices(pfrom->addr, pfrom->nServices); + } + if (pfrom->nServicesExpected & ~pfrom->nServices) + { + LogPrint("net", "peer=%d does not offer the expected services (%08x offered, %08x expected); disconnecting\n", pfrom->id, pfrom->nServices, pfrom->nServicesExpected); + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_NONSTANDARD, + strprintf("Expected to offer services %08x", pfrom->nServicesExpected))); + pfrom->fDisconnect = true; + return false; + } + + if (pfrom->nVersion < MIN_PEER_PROTO_VERSION) + { + // disconnect from peers older than this proto version + LogPrintf("peer=%d using obsolete version %i; disconnecting\n", pfrom->id, pfrom->nVersion); + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_OBSOLETE, + strprintf("Version must be %d or greater", MIN_PEER_PROTO_VERSION))); + pfrom->fDisconnect = true; + return false; + } + + if (pfrom->nVersion == 10300) + pfrom->nVersion = 300; + if (!vRecv.empty()) + vRecv >> addrFrom >> nNonce; + if (!vRecv.empty()) { + vRecv >> LIMITED_STRING(pfrom->strSubVer, MAX_SUBVERSION_LENGTH); + pfrom->cleanSubVer = SanitizeString(pfrom->strSubVer); + } + if (!vRecv.empty()) { + vRecv >> pfrom->nStartingHeight; + } + { + LOCK(pfrom->cs_filter); + if (!vRecv.empty()) + vRecv >> pfrom->fRelayTxes; // set to true after we get the first filter* message + else + pfrom->fRelayTxes = true; + } + + // Disconnect if we connected to ourself + if (pfrom->fInbound && !connman.CheckIncomingNonce(nNonce)) + { + LogPrintf("connected to self at %s, disconnecting\n", pfrom->addr.ToString()); + pfrom->fDisconnect = true; + return true; + } + + pfrom->addrLocal = addrMe; + if (pfrom->fInbound && addrMe.IsRoutable()) + { + SeenLocal(addrMe); + } + + // Be shy and don't send version until we hear + if (pfrom->fInbound) + PushNodeVersion(pfrom, connman, GetAdjustedTime()); + + pfrom->fClient = !(pfrom->nServices & NODE_NETWORK); + + if((pfrom->nServices & NODE_WITNESS)) + { + LOCK(cs_main); + State(pfrom->GetId())->fHaveWitness = true; + } + + // Potentially mark this peer as a preferred download peer. + { + LOCK(cs_main); + UpdatePreferredDownload(pfrom, State(pfrom->GetId())); + } + + // Change version + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::VERACK)); + int nSendVersion = std::min(pfrom->nVersion, PROTOCOL_VERSION); + pfrom->SetSendVersion(nSendVersion); + + if (!pfrom->fInbound) + { + // Advertise our address + if (fListen && !IsInitialBlockDownload()) + { + CAddress addr = GetLocalAddress(&pfrom->addr, pfrom->GetLocalServices()); + FastRandomContext insecure_rand; + if (addr.IsRoutable()) + { + LogPrint("net", "ProcessMessages: advertising address %s\n", addr.ToString()); + pfrom->PushAddress(addr, insecure_rand); + } else if (IsPeerAddrLocalGood(pfrom)) { + addr.SetIP(pfrom->addrLocal); + LogPrint("net", "ProcessMessages: advertising address %s\n", addr.ToString()); + pfrom->PushAddress(addr, insecure_rand); + } + } + + // Get recent addresses + if (pfrom->fOneShot || pfrom->nVersion >= CADDR_TIME_VERSION || connman.GetAddressCount() < 1000) + { + connman.PushMessage(pfrom, CNetMsgMaker(nSendVersion).Make(NetMsgType::GETADDR)); + pfrom->fGetAddr = true; + } + connman.MarkAddressGood(pfrom->addr); + } + + pfrom->fSuccessfullyConnected = true; + + string remoteAddr; + if (fLogIPs) + remoteAddr = ", peeraddr=" + pfrom->addr.ToString(); + + LogPrintf("receive version message: %s: version %d, blocks=%d, us=%s, peer=%d%s\n", + pfrom->cleanSubVer, pfrom->nVersion, + pfrom->nStartingHeight, addrMe.ToString(), pfrom->id, + remoteAddr); + + int64_t nTimeOffset = nTime - GetTime(); + pfrom->nTimeOffset = nTimeOffset; + AddTimeData(pfrom->addr, nTimeOffset); + + // Feeler connections exist only to verify if address is online. + if (pfrom->fFeeler) { + assert(pfrom->fInbound == false); + pfrom->fDisconnect = true; + } + return true; + } + + + else if (pfrom->nVersion == 0) + { + // Must have a version message before anything else + LOCK(cs_main); + Misbehaving(pfrom->GetId(), 1); + return false; + } + + // At this point, the outgoing message serialization version can't change. + CNetMsgMaker msgMaker(pfrom->GetSendVersion()); + + if (strCommand == NetMsgType::VERACK) + { + pfrom->SetRecvVersion(min(pfrom->nVersion, PROTOCOL_VERSION)); + + if (!pfrom->fInbound) { + // Mark this node as currently connected, so we update its timestamp later. + LOCK(cs_main); + State(pfrom->GetId())->fCurrentlyConnected = true; + } + + if (pfrom->nVersion >= SENDHEADERS_VERSION) { + // Tell our peer we prefer to receive headers rather than inv's + // We send this to non-NODE NETWORK peers as well, because even + // non-NODE NETWORK peers can announce blocks (such as pruning + // nodes) + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::SENDHEADERS)); + } + if (pfrom->nVersion >= SHORT_IDS_BLOCKS_VERSION) { + // Tell our peer we are willing to provide version 1 or 2 cmpctblocks + // However, we do not request new block announcements using + // cmpctblock messages. + // We send this to non-NODE NETWORK peers as well, because + // they may wish to request compact blocks from us + bool fAnnounceUsingCMPCTBLOCK = false; + uint64_t nCMPCTBLOCKVersion = 2; + if (pfrom->GetLocalServices() & NODE_WITNESS) + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion)); + nCMPCTBLOCKVersion = 1; + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion)); + } + } + + + else if (strCommand == NetMsgType::ADDR) + { + vector<CAddress> vAddr; + vRecv >> vAddr; + + // Don't want addr from older versions unless seeding + if (pfrom->nVersion < CADDR_TIME_VERSION && connman.GetAddressCount() > 1000) + return true; + if (vAddr.size() > 1000) + { + LOCK(cs_main); + Misbehaving(pfrom->GetId(), 20); + return error("message addr size() = %u", vAddr.size()); + } + + // Store the new addresses + vector<CAddress> vAddrOk; + int64_t nNow = GetAdjustedTime(); + int64_t nSince = nNow - 10 * 60; + BOOST_FOREACH(CAddress& addr, vAddr) + { + boost::this_thread::interruption_point(); + + if ((addr.nServices & REQUIRED_SERVICES) != REQUIRED_SERVICES) + continue; + + if (addr.nTime <= 100000000 || addr.nTime > nNow + 10 * 60) + addr.nTime = nNow - 5 * 24 * 60 * 60; + pfrom->AddAddressKnown(addr); + bool fReachable = IsReachable(addr); + if (addr.nTime > nSince && !pfrom->fGetAddr && vAddr.size() <= 10 && addr.IsRoutable()) + { + // Relay to a limited number of other nodes + RelayAddress(addr, fReachable, connman); + } + // Do not store addresses outside our network + if (fReachable) + vAddrOk.push_back(addr); + } + connman.AddNewAddresses(vAddrOk, pfrom->addr, 2 * 60 * 60); + if (vAddr.size() < 1000) + pfrom->fGetAddr = false; + if (pfrom->fOneShot) + pfrom->fDisconnect = true; + } + + else if (strCommand == NetMsgType::SENDHEADERS) + { + LOCK(cs_main); + State(pfrom->GetId())->fPreferHeaders = true; + } + + else if (strCommand == NetMsgType::SENDCMPCT) + { + bool fAnnounceUsingCMPCTBLOCK = false; + uint64_t nCMPCTBLOCKVersion = 0; + vRecv >> fAnnounceUsingCMPCTBLOCK >> nCMPCTBLOCKVersion; + if (nCMPCTBLOCKVersion == 1 || ((pfrom->GetLocalServices() & NODE_WITNESS) && nCMPCTBLOCKVersion == 2)) { + LOCK(cs_main); + // fProvidesHeaderAndIDs is used to "lock in" version of compact blocks we send (fWantsCmpctWitness) + if (!State(pfrom->GetId())->fProvidesHeaderAndIDs) { + State(pfrom->GetId())->fProvidesHeaderAndIDs = true; + State(pfrom->GetId())->fWantsCmpctWitness = nCMPCTBLOCKVersion == 2; + } + if (State(pfrom->GetId())->fWantsCmpctWitness == (nCMPCTBLOCKVersion == 2)) // ignore later version announces + State(pfrom->GetId())->fPreferHeaderAndIDs = fAnnounceUsingCMPCTBLOCK; + if (!State(pfrom->GetId())->fSupportsDesiredCmpctVersion) { + if (pfrom->GetLocalServices() & NODE_WITNESS) + State(pfrom->GetId())->fSupportsDesiredCmpctVersion = (nCMPCTBLOCKVersion == 2); + else + State(pfrom->GetId())->fSupportsDesiredCmpctVersion = (nCMPCTBLOCKVersion == 1); + } + } + } + + + else if (strCommand == NetMsgType::INV) + { + vector<CInv> vInv; + vRecv >> vInv; + if (vInv.size() > MAX_INV_SZ) + { + LOCK(cs_main); + Misbehaving(pfrom->GetId(), 20); + return error("message inv size() = %u", vInv.size()); + } + + bool fBlocksOnly = !fRelayTxes; + + // Allow whitelisted peers to send data other than blocks in blocks only mode if whitelistrelay is true + if (pfrom->fWhitelisted && GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY)) + fBlocksOnly = false; + + LOCK(cs_main); + + uint32_t nFetchFlags = GetFetchFlags(pfrom, chainActive.Tip(), chainparams.GetConsensus()); + + std::vector<CInv> vToFetch; + + for (unsigned int nInv = 0; nInv < vInv.size(); nInv++) + { + CInv &inv = vInv[nInv]; + + boost::this_thread::interruption_point(); + + bool fAlreadyHave = AlreadyHave(inv); + LogPrint("net", "got inv: %s %s peer=%d\n", inv.ToString(), fAlreadyHave ? "have" : "new", pfrom->id); + + if (inv.type == MSG_TX) { + inv.type |= nFetchFlags; + } + + if (inv.type == MSG_BLOCK) { + UpdateBlockAvailability(pfrom->GetId(), inv.hash); + if (!fAlreadyHave && !fImporting && !fReindex && !mapBlocksInFlight.count(inv.hash)) { + // We used to request the full block here, but since headers-announcements are now the + // primary method of announcement on the network, and since, in the case that a node + // fell back to inv we probably have a reorg which we should get the headers for first, + // we now only provide a getheaders response here. When we receive the headers, we will + // then ask for the blocks we need. + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), inv.hash)); + LogPrint("net", "getheaders (%d) %s to peer=%d\n", pindexBestHeader->nHeight, inv.hash.ToString(), pfrom->id); + } + } + else + { + pfrom->AddInventoryKnown(inv); + if (fBlocksOnly) + LogPrint("net", "transaction (%s) inv sent in violation of protocol peer=%d\n", inv.hash.ToString(), pfrom->id); + else if (!fAlreadyHave && !fImporting && !fReindex && !IsInitialBlockDownload()) + pfrom->AskFor(inv); + } + + // Track requests for our stuff + GetMainSignals().Inventory(inv.hash); + + if (pfrom->nSendSize > (nMaxSendBufferSize * 2)) { + Misbehaving(pfrom->GetId(), 50); + return error("send buffer size() = %u", pfrom->nSendSize); + } + } + + if (!vToFetch.empty()) + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vToFetch)); + } + + + else if (strCommand == NetMsgType::GETDATA) + { + vector<CInv> vInv; + vRecv >> vInv; + if (vInv.size() > MAX_INV_SZ) + { + LOCK(cs_main); + Misbehaving(pfrom->GetId(), 20); + return error("message getdata size() = %u", vInv.size()); + } + + if (fDebug || (vInv.size() != 1)) + LogPrint("net", "received getdata (%u invsz) peer=%d\n", vInv.size(), pfrom->id); + + if ((fDebug && vInv.size() > 0) || (vInv.size() == 1)) + LogPrint("net", "received getdata for: %s peer=%d\n", vInv[0].ToString(), pfrom->id); + + pfrom->vRecvGetData.insert(pfrom->vRecvGetData.end(), vInv.begin(), vInv.end()); + ProcessGetData(pfrom, chainparams.GetConsensus(), connman); + } + + + else if (strCommand == NetMsgType::GETBLOCKS) + { + CBlockLocator locator; + uint256 hashStop; + vRecv >> locator >> hashStop; + + LOCK(cs_main); + + // Find the last block the caller has in the main chain + CBlockIndex* pindex = FindForkInGlobalIndex(chainActive, locator); + + // Send the rest of the chain + if (pindex) + pindex = chainActive.Next(pindex); + int nLimit = 500; + LogPrint("net", "getblocks %d to %s limit %d from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), nLimit, pfrom->id); + for (; pindex; pindex = chainActive.Next(pindex)) + { + if (pindex->GetBlockHash() == hashStop) + { + LogPrint("net", " getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString()); + break; + } + // If pruning, don't inv blocks unless we have on disk and are likely to still have + // for some reasonable time window (1 hour) that block relay might require. + const int nPrunedBlocksLikelyToHave = MIN_BLOCKS_TO_KEEP - 3600 / chainparams.GetConsensus().nPowTargetSpacing; + if (fPruneMode && (!(pindex->nStatus & BLOCK_HAVE_DATA) || pindex->nHeight <= chainActive.Tip()->nHeight - nPrunedBlocksLikelyToHave)) + { + LogPrint("net", " getblocks stopping, pruned or too old block at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString()); + break; + } + pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash())); + if (--nLimit <= 0) + { + // When this block is requested, we'll send an inv that'll + // trigger the peer to getblocks the next batch of inventory. + LogPrint("net", " getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString()); + pfrom->hashContinue = pindex->GetBlockHash(); + break; + } + } + } + + + else if (strCommand == NetMsgType::GETBLOCKTXN) + { + BlockTransactionsRequest req; + vRecv >> req; + + LOCK(cs_main); + + BlockMap::iterator it = mapBlockIndex.find(req.blockhash); + if (it == mapBlockIndex.end() || !(it->second->nStatus & BLOCK_HAVE_DATA)) { + LogPrintf("Peer %d sent us a getblocktxn for a block we don't have", pfrom->id); + return true; + } + + if (it->second->nHeight < chainActive.Height() - MAX_BLOCKTXN_DEPTH) { + // If an older block is requested (should never happen in practice, + // but can happen in tests) send a block response instead of a + // blocktxn response. Sending a full block response instead of a + // small blocktxn response is preferable in the case where a peer + // might maliciously send lots of getblocktxn requests to trigger + // expensive disk reads, because it will require the peer to + // actually receive all the data read from disk over the network. + LogPrint("net", "Peer %d sent us a getblocktxn for a block > %i deep", pfrom->id, MAX_BLOCKTXN_DEPTH); + CInv inv; + inv.type = State(pfrom->GetId())->fWantsCmpctWitness ? MSG_WITNESS_BLOCK : MSG_BLOCK; + inv.hash = req.blockhash; + pfrom->vRecvGetData.push_back(inv); + ProcessGetData(pfrom, chainparams.GetConsensus(), connman); + return true; + } + + CBlock block; + assert(ReadBlockFromDisk(block, it->second, chainparams.GetConsensus())); + + BlockTransactions resp(req); + for (size_t i = 0; i < req.indexes.size(); i++) { + if (req.indexes[i] >= block.vtx.size()) { + Misbehaving(pfrom->GetId(), 100); + LogPrintf("Peer %d sent us a getblocktxn with out-of-bounds tx indices", pfrom->id); + return true; + } + resp.txn[i] = block.vtx[req.indexes[i]]; + } + int nSendFlags = State(pfrom->GetId())->fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS; + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::BLOCKTXN, resp)); + } + + + else if (strCommand == NetMsgType::GETHEADERS) + { + CBlockLocator locator; + uint256 hashStop; + vRecv >> locator >> hashStop; + + LOCK(cs_main); + if (IsInitialBlockDownload() && !pfrom->fWhitelisted) { + LogPrint("net", "Ignoring getheaders from peer=%d because node is in initial block download\n", pfrom->id); + return true; + } + + CNodeState *nodestate = State(pfrom->GetId()); + CBlockIndex* pindex = NULL; + if (locator.IsNull()) + { + // If locator is null, return the hashStop block + BlockMap::iterator mi = mapBlockIndex.find(hashStop); + if (mi == mapBlockIndex.end()) + return true; + pindex = (*mi).second; + } + else + { + // Find the last block the caller has in the main chain + pindex = FindForkInGlobalIndex(chainActive, locator); + if (pindex) + pindex = chainActive.Next(pindex); + } + + // we must use CBlocks, as CBlockHeaders won't include the 0x00 nTx count at the end + vector<CBlock> vHeaders; + int nLimit = MAX_HEADERS_RESULTS; + LogPrint("net", "getheaders %d to %s from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), pfrom->id); + for (; pindex; pindex = chainActive.Next(pindex)) + { + vHeaders.push_back(pindex->GetBlockHeader()); + if (--nLimit <= 0 || pindex->GetBlockHash() == hashStop) + break; + } + // pindex can be NULL either if we sent chainActive.Tip() OR + // if our peer has chainActive.Tip() (and thus we are sending an empty + // headers message). In both cases it's safe to update + // pindexBestHeaderSent to be our tip. + nodestate->pindexBestHeaderSent = pindex ? pindex : chainActive.Tip(); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::HEADERS, vHeaders)); + } + + + else if (strCommand == NetMsgType::TX) + { + // Stop processing the transaction early if + // We are in blocks only mode and peer is either not whitelisted or whitelistrelay is off + if (!fRelayTxes && (!pfrom->fWhitelisted || !GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY))) + { + LogPrint("net", "transaction sent in violation of protocol peer=%d\n", pfrom->id); + return true; + } + + deque<COutPoint> vWorkQueue; + vector<uint256> vEraseQueue; + CTransaction tx; + vRecv >> tx; + + CInv inv(MSG_TX, tx.GetHash()); + pfrom->AddInventoryKnown(inv); + + LOCK(cs_main); + + bool fMissingInputs = false; + CValidationState state; + + pfrom->setAskFor.erase(inv.hash); + mapAlreadyAskedFor.erase(inv.hash); + + if (!AlreadyHave(inv) && AcceptToMemoryPool(mempool, state, tx, true, &fMissingInputs)) { + mempool.check(pcoinsTip); + RelayTransaction(tx, connman); + for (unsigned int i = 0; i < tx.vout.size(); i++) { + vWorkQueue.emplace_back(inv.hash, i); + } + + pfrom->nLastTXTime = GetTime(); + + LogPrint("mempool", "AcceptToMemoryPool: peer=%d: accepted %s (poolsz %u txn, %u kB)\n", + pfrom->id, + tx.GetHash().ToString(), + mempool.size(), mempool.DynamicMemoryUsage() / 1000); + + // Recursively process any orphan transactions that depended on this one + set<NodeId> setMisbehaving; + while (!vWorkQueue.empty()) { + auto itByPrev = mapOrphanTransactionsByPrev.find(vWorkQueue.front()); + vWorkQueue.pop_front(); + if (itByPrev == mapOrphanTransactionsByPrev.end()) + continue; + for (auto mi = itByPrev->second.begin(); + mi != itByPrev->second.end(); + ++mi) + { + const CTransaction& orphanTx = (*mi)->second.tx; + const uint256& orphanHash = orphanTx.GetHash(); + NodeId fromPeer = (*mi)->second.fromPeer; + bool fMissingInputs2 = false; + // Use a dummy CValidationState so someone can't setup nodes to counter-DoS based on orphan + // resolution (that is, feeding people an invalid transaction based on LegitTxX in order to get + // anyone relaying LegitTxX banned) + CValidationState stateDummy; + + + if (setMisbehaving.count(fromPeer)) + continue; + if (AcceptToMemoryPool(mempool, stateDummy, orphanTx, true, &fMissingInputs2)) { + LogPrint("mempool", " accepted orphan tx %s\n", orphanHash.ToString()); + RelayTransaction(orphanTx, connman); + for (unsigned int i = 0; i < orphanTx.vout.size(); i++) { + vWorkQueue.emplace_back(orphanHash, i); + } + vEraseQueue.push_back(orphanHash); + } + else if (!fMissingInputs2) + { + int nDos = 0; + if (stateDummy.IsInvalid(nDos) && nDos > 0) + { + // Punish peer that gave us an invalid orphan tx + Misbehaving(fromPeer, nDos); + setMisbehaving.insert(fromPeer); + LogPrint("mempool", " invalid orphan tx %s\n", orphanHash.ToString()); + } + // Has inputs but not accepted to mempool + // Probably non-standard or insufficient fee/priority + LogPrint("mempool", " removed orphan tx %s\n", orphanHash.ToString()); + vEraseQueue.push_back(orphanHash); + if (orphanTx.wit.IsNull() && !stateDummy.CorruptionPossible()) { + // Do not use rejection cache for witness transactions or + // witness-stripped transactions, as they can have been malleated. + // See https://github.com/bitcoin/bitcoin/issues/8279 for details. + assert(recentRejects); + recentRejects->insert(orphanHash); + } + } + mempool.check(pcoinsTip); + } + } + + BOOST_FOREACH(uint256 hash, vEraseQueue) + EraseOrphanTx(hash); + } + else if (fMissingInputs) + { + bool fRejectedParents = false; // It may be the case that the orphans parents have all been rejected + BOOST_FOREACH(const CTxIn& txin, tx.vin) { + if (recentRejects->contains(txin.prevout.hash)) { + fRejectedParents = true; + break; + } + } + if (!fRejectedParents) { + uint32_t nFetchFlags = GetFetchFlags(pfrom, chainActive.Tip(), chainparams.GetConsensus()); + BOOST_FOREACH(const CTxIn& txin, tx.vin) { + CInv _inv(MSG_TX | nFetchFlags, txin.prevout.hash); + pfrom->AddInventoryKnown(_inv); + if (!AlreadyHave(_inv)) pfrom->AskFor(_inv); + } + AddOrphanTx(tx, pfrom->GetId()); + + // DoS prevention: do not allow mapOrphanTransactions to grow unbounded + unsigned int nMaxOrphanTx = (unsigned int)std::max((int64_t)0, GetArg("-maxorphantx", DEFAULT_MAX_ORPHAN_TRANSACTIONS)); + unsigned int nEvicted = LimitOrphanTxSize(nMaxOrphanTx); + if (nEvicted > 0) + LogPrint("mempool", "mapOrphan overflow, removed %u tx\n", nEvicted); + } else { + LogPrint("mempool", "not keeping orphan with rejected parents %s\n",tx.GetHash().ToString()); + } + } else { + if (tx.wit.IsNull() && !state.CorruptionPossible()) { + // Do not use rejection cache for witness transactions or + // witness-stripped transactions, as they can have been malleated. + // See https://github.com/bitcoin/bitcoin/issues/8279 for details. + assert(recentRejects); + recentRejects->insert(tx.GetHash()); + } + + if (pfrom->fWhitelisted && GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) { + // Always relay transactions received from whitelisted peers, even + // if they were already in the mempool or rejected from it due + // to policy, allowing the node to function as a gateway for + // nodes hidden behind it. + // + // Never relay transactions that we would assign a non-zero DoS + // score for, as we expect peers to do the same with us in that + // case. + int nDoS = 0; + if (!state.IsInvalid(nDoS) || nDoS == 0) { + LogPrintf("Force relaying tx %s from whitelisted peer=%d\n", tx.GetHash().ToString(), pfrom->id); + RelayTransaction(tx, connman); + } else { + LogPrintf("Not relaying invalid transaction %s from whitelisted peer=%d (%s)\n", tx.GetHash().ToString(), pfrom->id, FormatStateMessage(state)); + } + } + } + int nDoS = 0; + if (state.IsInvalid(nDoS)) + { + LogPrint("mempoolrej", "%s from peer=%d was not accepted: %s\n", tx.GetHash().ToString(), + pfrom->id, + FormatStateMessage(state)); + if (state.GetRejectCode() < REJECT_INTERNAL) // Never send AcceptToMemoryPool's internal codes over P2P + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::REJECT, strCommand, (unsigned char)state.GetRejectCode(), + state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), inv.hash)); + if (nDoS > 0) { + Misbehaving(pfrom->GetId(), nDoS); + } + } + } + + + else if (strCommand == NetMsgType::CMPCTBLOCK && !fImporting && !fReindex) // Ignore blocks received while importing + { + CBlockHeaderAndShortTxIDs cmpctblock; + vRecv >> cmpctblock; + + { + LOCK(cs_main); + + if (mapBlockIndex.find(cmpctblock.header.hashPrevBlock) == mapBlockIndex.end()) { + // Doesn't connect (or is genesis), instead of DoSing in AcceptBlockHeader, request deeper headers + if (!IsInitialBlockDownload()) + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), uint256())); + return true; + } + } + + CBlockIndex *pindex = NULL; + CValidationState state; + if (!ProcessNewBlockHeaders({cmpctblock.header}, state, chainparams, &pindex)) { + int nDoS; + if (state.IsInvalid(nDoS)) { + if (nDoS > 0) { + LOCK(cs_main); + Misbehaving(pfrom->GetId(), nDoS); + } + LogPrintf("Peer %d sent us invalid header via cmpctblock\n", pfrom->id); + return true; + } + } + + LOCK(cs_main); + // If AcceptBlockHeader returned true, it set pindex + assert(pindex); + UpdateBlockAvailability(pfrom->GetId(), pindex->GetBlockHash()); + + std::map<uint256, pair<NodeId, list<QueuedBlock>::iterator> >::iterator blockInFlightIt = mapBlocksInFlight.find(pindex->GetBlockHash()); + bool fAlreadyInFlight = blockInFlightIt != mapBlocksInFlight.end(); + + if (pindex->nStatus & BLOCK_HAVE_DATA) // Nothing to do here + return true; + + if (pindex->nChainWork <= chainActive.Tip()->nChainWork || // We know something better + pindex->nTx != 0) { // We had this block at some point, but pruned it + if (fAlreadyInFlight) { + // We requested this block for some reason, but our mempool will probably be useless + // so we just grab the block via normal getdata + std::vector<CInv> vInv(1); + vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash()); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vInv)); + } + return true; + } + + // If we're not close to tip yet, give up and let parallel block fetch work its magic + if (!fAlreadyInFlight && !CanDirectFetch(chainparams.GetConsensus())) + return true; + + CNodeState *nodestate = State(pfrom->GetId()); + + if (IsWitnessEnabled(pindex->pprev, chainparams.GetConsensus()) && !nodestate->fSupportsDesiredCmpctVersion) { + // Don't bother trying to process compact blocks from v1 peers + // after segwit activates. + return true; + } + + // We want to be a bit conservative just to be extra careful about DoS + // possibilities in compact block processing... + if (pindex->nHeight <= chainActive.Height() + 2) { + if ((!fAlreadyInFlight && nodestate->nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) || + (fAlreadyInFlight && blockInFlightIt->second.first == pfrom->GetId())) { + list<QueuedBlock>::iterator *queuedBlockIt = NULL; + if (!MarkBlockAsInFlight(pfrom->GetId(), pindex->GetBlockHash(), chainparams.GetConsensus(), pindex, &queuedBlockIt)) { + if (!(*queuedBlockIt)->partialBlock) + (*queuedBlockIt)->partialBlock.reset(new PartiallyDownloadedBlock(&mempool)); + else { + // The block was already in flight using compact blocks from the same peer + LogPrint("net", "Peer sent us compact block we were already syncing!\n"); + return true; + } + } + + PartiallyDownloadedBlock& partialBlock = *(*queuedBlockIt)->partialBlock; + ReadStatus status = partialBlock.InitData(cmpctblock); + if (status == READ_STATUS_INVALID) { + MarkBlockAsReceived(pindex->GetBlockHash()); // Reset in-flight state in case of whitelist + Misbehaving(pfrom->GetId(), 100); + LogPrintf("Peer %d sent us invalid compact block\n", pfrom->id); + return true; + } else if (status == READ_STATUS_FAILED) { + // Duplicate txindexes, the block is now in-flight, so just request it + std::vector<CInv> vInv(1); + vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash()); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vInv)); + return true; + } + + if (!fAlreadyInFlight && mapBlocksInFlight.size() == 1 && pindex->pprev->IsValid(BLOCK_VALID_CHAIN)) { + // We seem to be rather well-synced, so it appears pfrom was the first to provide us + // with this block! Let's get them to announce using compact blocks in the future. + MaybeSetPeerAsAnnouncingHeaderAndIDs(nodestate, pfrom, connman); + } + + BlockTransactionsRequest req; + for (size_t i = 0; i < cmpctblock.BlockTxCount(); i++) { + if (!partialBlock.IsTxAvailable(i)) + req.indexes.push_back(i); + } + if (req.indexes.empty()) { + // Dirty hack to jump to BLOCKTXN code (TODO: move message handling into their own functions) + BlockTransactions txn; + txn.blockhash = cmpctblock.header.GetHash(); + CDataStream blockTxnMsg(SER_NETWORK, PROTOCOL_VERSION); + blockTxnMsg << txn; + return ProcessMessage(pfrom, NetMsgType::BLOCKTXN, blockTxnMsg, nTimeReceived, chainparams, connman); + } else { + req.blockhash = pindex->GetBlockHash(); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETBLOCKTXN, req)); + } + } + } else { + if (fAlreadyInFlight) { + // We requested this block, but its far into the future, so our + // mempool will probably be useless - request the block normally + std::vector<CInv> vInv(1); + vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash()); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vInv)); + return true; + } else { + // If this was an announce-cmpctblock, we want the same treatment as a header message + // Dirty hack to process as if it were just a headers message (TODO: move message handling into their own functions) + std::vector<CBlock> headers; + headers.push_back(cmpctblock.header); + CDataStream vHeadersMsg(SER_NETWORK, PROTOCOL_VERSION); + vHeadersMsg << headers; + return ProcessMessage(pfrom, NetMsgType::HEADERS, vHeadersMsg, nTimeReceived, chainparams, connman); + } + } + } + + else if (strCommand == NetMsgType::BLOCKTXN && !fImporting && !fReindex) // Ignore blocks received while importing + { + BlockTransactions resp; + vRecv >> resp; + + CBlock block; + bool fBlockRead = false; + { + LOCK(cs_main); + + map<uint256, pair<NodeId, list<QueuedBlock>::iterator> >::iterator it = mapBlocksInFlight.find(resp.blockhash); + if (it == mapBlocksInFlight.end() || !it->second.second->partialBlock || + it->second.first != pfrom->GetId()) { + LogPrint("net", "Peer %d sent us block transactions for block we weren't expecting\n", pfrom->id); + return true; + } + + PartiallyDownloadedBlock& partialBlock = *it->second.second->partialBlock; + ReadStatus status = partialBlock.FillBlock(block, resp.txn); + if (status == READ_STATUS_INVALID) { + MarkBlockAsReceived(resp.blockhash); // Reset in-flight state in case of whitelist + Misbehaving(pfrom->GetId(), 100); + LogPrintf("Peer %d sent us invalid compact block/non-matching block transactions\n", pfrom->id); + return true; + } else if (status == READ_STATUS_FAILED) { + // Might have collided, fall back to getdata now :( + std::vector<CInv> invs; + invs.push_back(CInv(MSG_BLOCK | GetFetchFlags(pfrom, chainActive.Tip(), chainparams.GetConsensus()), resp.blockhash)); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, invs)); + } else { + // Block is either okay, or possibly we received + // READ_STATUS_CHECKBLOCK_FAILED. + // Note that CheckBlock can only fail for one of a few reasons: + // 1. bad-proof-of-work (impossible here, because we've already + // accepted the header) + // 2. merkleroot doesn't match the transactions given (already + // caught in FillBlock with READ_STATUS_FAILED, so + // impossible here) + // 3. the block is otherwise invalid (eg invalid coinbase, + // block is too big, too many legacy sigops, etc). + // So if CheckBlock failed, #3 is the only possibility. + // Under BIP 152, we don't DoS-ban unless proof of work is + // invalid (we don't require all the stateless checks to have + // been run). This is handled below, so just treat this as + // though the block was successfully read, and rely on the + // handling in ProcessNewBlock to ensure the block index is + // updated, reject messages go out, etc. + MarkBlockAsReceived(resp.blockhash); // it is now an empty pointer + fBlockRead = true; + // mapBlockSource is only used for sending reject messages and DoS scores, + // so the race between here and cs_main in ProcessNewBlock is fine. + // BIP 152 permits peers to relay compact blocks after validating + // the header only; we should not punish peers if the block turns + // out to be invalid. + mapBlockSource.emplace(resp.blockhash, std::make_pair(pfrom->GetId(), false)); + } + } // Don't hold cs_main when we call into ProcessNewBlock + if (fBlockRead) { + bool fNewBlock = false; + // Since we requested this block (it was in mapBlocksInFlight), force it to be processed, + // even if it would not be a candidate for new tip (missing previous block, chain not long enough, etc) + ProcessNewBlock(chainparams, &block, true, NULL, &fNewBlock); + if (fNewBlock) + pfrom->nLastBlockTime = GetTime(); + } + } + + + else if (strCommand == NetMsgType::HEADERS && !fImporting && !fReindex) // Ignore headers received while importing + { + std::vector<CBlockHeader> headers; + + // Bypass the normal CBlock deserialization, as we don't want to risk deserializing 2000 full blocks. + unsigned int nCount = ReadCompactSize(vRecv); + if (nCount > MAX_HEADERS_RESULTS) { + LOCK(cs_main); + Misbehaving(pfrom->GetId(), 20); + return error("headers message size = %u", nCount); + } + headers.resize(nCount); + for (unsigned int n = 0; n < nCount; n++) { + vRecv >> headers[n]; + ReadCompactSize(vRecv); // ignore tx count; assume it is 0. + } + + if (nCount == 0) { + // Nothing interesting. Stop asking this peers for more headers. + return true; + } + + CBlockIndex *pindexLast = NULL; + { + LOCK(cs_main); + CNodeState *nodestate = State(pfrom->GetId()); + + // If this looks like it could be a block announcement (nCount < + // MAX_BLOCKS_TO_ANNOUNCE), use special logic for handling headers that + // don't connect: + // - Send a getheaders message in response to try to connect the chain. + // - The peer can send up to MAX_UNCONNECTING_HEADERS in a row that + // don't connect before giving DoS points + // - Once a headers message is received that is valid and does connect, + // nUnconnectingHeaders gets reset back to 0. + if (mapBlockIndex.find(headers[0].hashPrevBlock) == mapBlockIndex.end() && nCount < MAX_BLOCKS_TO_ANNOUNCE) { + nodestate->nUnconnectingHeaders++; + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), uint256())); + LogPrint("net", "received header %s: missing prev block %s, sending getheaders (%d) to end (peer=%d, nUnconnectingHeaders=%d)\n", + headers[0].GetHash().ToString(), + headers[0].hashPrevBlock.ToString(), + pindexBestHeader->nHeight, + pfrom->id, nodestate->nUnconnectingHeaders); + // Set hashLastUnknownBlock for this peer, so that if we + // eventually get the headers - even from a different peer - + // we can use this peer to download. + UpdateBlockAvailability(pfrom->GetId(), headers.back().GetHash()); + + if (nodestate->nUnconnectingHeaders % MAX_UNCONNECTING_HEADERS == 0) { + Misbehaving(pfrom->GetId(), 20); + } + return true; + } + + uint256 hashLastBlock; + for (const CBlockHeader& header : headers) { + if (!hashLastBlock.IsNull() && header.hashPrevBlock != hashLastBlock) { + Misbehaving(pfrom->GetId(), 20); + return error("non-continuous headers sequence"); + } + hashLastBlock = header.GetHash(); + } + } + + CValidationState state; + if (!ProcessNewBlockHeaders(headers, state, chainparams, &pindexLast)) { + int nDoS; + if (state.IsInvalid(nDoS)) { + if (nDoS > 0) { + LOCK(cs_main); + Misbehaving(pfrom->GetId(), nDoS); + } + return error("invalid header received"); + } + } + + { + LOCK(cs_main); + CNodeState *nodestate = State(pfrom->GetId()); + if (nodestate->nUnconnectingHeaders > 0) { + LogPrint("net", "peer=%d: resetting nUnconnectingHeaders (%d -> 0)\n", pfrom->id, nodestate->nUnconnectingHeaders); + } + nodestate->nUnconnectingHeaders = 0; + + assert(pindexLast); + UpdateBlockAvailability(pfrom->GetId(), pindexLast->GetBlockHash()); + + if (nCount == MAX_HEADERS_RESULTS) { + // Headers message had its maximum size; the peer may have more headers. + // TODO: optimize: if pindexLast is an ancestor of chainActive.Tip or pindexBestHeader, continue + // from there instead. + LogPrint("net", "more getheaders (%d) to end to peer=%d (startheight:%d)\n", pindexLast->nHeight, pfrom->id, pfrom->nStartingHeight); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexLast), uint256())); + } + + bool fCanDirectFetch = CanDirectFetch(chainparams.GetConsensus()); + // If this set of headers is valid and ends in a block with at least as + // much work as our tip, download as much as possible. + if (fCanDirectFetch && pindexLast->IsValid(BLOCK_VALID_TREE) && chainActive.Tip()->nChainWork <= pindexLast->nChainWork) { + vector<CBlockIndex *> vToFetch; + CBlockIndex *pindexWalk = pindexLast; + // Calculate all the blocks we'd need to switch to pindexLast, up to a limit. + while (pindexWalk && !chainActive.Contains(pindexWalk) && vToFetch.size() <= MAX_BLOCKS_IN_TRANSIT_PER_PEER) { + if (!(pindexWalk->nStatus & BLOCK_HAVE_DATA) && + !mapBlocksInFlight.count(pindexWalk->GetBlockHash()) && + (!IsWitnessEnabled(pindexWalk->pprev, chainparams.GetConsensus()) || State(pfrom->GetId())->fHaveWitness)) { + // We don't have this block, and it's not yet in flight. + vToFetch.push_back(pindexWalk); + } + pindexWalk = pindexWalk->pprev; + } + // If pindexWalk still isn't on our main chain, we're looking at a + // very large reorg at a time we think we're close to caught up to + // the main chain -- this shouldn't really happen. Bail out on the + // direct fetch and rely on parallel download instead. + if (!chainActive.Contains(pindexWalk)) { + LogPrint("net", "Large reorg, won't direct fetch to %s (%d)\n", + pindexLast->GetBlockHash().ToString(), + pindexLast->nHeight); + } else { + vector<CInv> vGetData; + // Download as much as possible, from earliest to latest. + BOOST_REVERSE_FOREACH(CBlockIndex *pindex, vToFetch) { + if (nodestate->nBlocksInFlight >= MAX_BLOCKS_IN_TRANSIT_PER_PEER) { + // Can't download any more from this peer + break; + } + uint32_t nFetchFlags = GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()); + vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash())); + MarkBlockAsInFlight(pfrom->GetId(), pindex->GetBlockHash(), chainparams.GetConsensus(), pindex); + LogPrint("net", "Requesting block %s from peer=%d\n", + pindex->GetBlockHash().ToString(), pfrom->id); + } + if (vGetData.size() > 1) { + LogPrint("net", "Downloading blocks toward %s (%d) via headers direct fetch\n", + pindexLast->GetBlockHash().ToString(), pindexLast->nHeight); + } + if (vGetData.size() > 0) { + if (nodestate->fSupportsDesiredCmpctVersion && vGetData.size() == 1 && mapBlocksInFlight.size() == 1 && pindexLast->pprev->IsValid(BLOCK_VALID_CHAIN)) { + // We seem to be rather well-synced, so it appears pfrom was the first to provide us + // with this block! Let's get them to announce using compact blocks in the future. + MaybeSetPeerAsAnnouncingHeaderAndIDs(nodestate, pfrom, connman); + // In any case, we want to download using a compact block, not a regular one + vGetData[0] = CInv(MSG_CMPCT_BLOCK, vGetData[0].hash); + } + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vGetData)); + } + } + } + } + } + + else if (strCommand == NetMsgType::BLOCK && !fImporting && !fReindex) // Ignore blocks received while importing + { + CBlock block; + vRecv >> block; + + LogPrint("net", "received block %s peer=%d\n", block.GetHash().ToString(), pfrom->id); + + // Process all blocks from whitelisted peers, even if not requested, + // unless we're still syncing with the network. + // Such an unrequested block may still be processed, subject to the + // conditions in AcceptBlock(). + bool forceProcessing = pfrom->fWhitelisted && !IsInitialBlockDownload(); + const uint256 hash(block.GetHash()); + { + LOCK(cs_main); + // Also always process if we requested the block explicitly, as we may + // need it even though it is not a candidate for a new best tip. + forceProcessing |= MarkBlockAsReceived(hash); + // mapBlockSource is only used for sending reject messages and DoS scores, + // so the race between here and cs_main in ProcessNewBlock is fine. + mapBlockSource.emplace(hash, std::make_pair(pfrom->GetId(), true)); + } + bool fNewBlock = false; + ProcessNewBlock(chainparams, &block, forceProcessing, NULL, &fNewBlock); + if (fNewBlock) + pfrom->nLastBlockTime = GetTime(); + } + + + else if (strCommand == NetMsgType::GETADDR) + { + // This asymmetric behavior for inbound and outbound connections was introduced + // to prevent a fingerprinting attack: an attacker can send specific fake addresses + // to users' AddrMan and later request them by sending getaddr messages. + // Making nodes which are behind NAT and can only make outgoing connections ignore + // the getaddr message mitigates the attack. + if (!pfrom->fInbound) { + LogPrint("net", "Ignoring \"getaddr\" from outbound connection. peer=%d\n", pfrom->id); + return true; + } + + // Only send one GetAddr response per connection to reduce resource waste + // and discourage addr stamping of INV announcements. + if (pfrom->fSentAddr) { + LogPrint("net", "Ignoring repeated \"getaddr\". peer=%d\n", pfrom->id); + return true; + } + pfrom->fSentAddr = true; + + pfrom->vAddrToSend.clear(); + vector<CAddress> vAddr = connman.GetAddresses(); + FastRandomContext insecure_rand; + BOOST_FOREACH(const CAddress &addr, vAddr) + pfrom->PushAddress(addr, insecure_rand); + } + + + else if (strCommand == NetMsgType::MEMPOOL) + { + if (!(pfrom->GetLocalServices() & NODE_BLOOM) && !pfrom->fWhitelisted) + { + LogPrint("net", "mempool request with bloom filters disabled, disconnect peer=%d\n", pfrom->GetId()); + pfrom->fDisconnect = true; + return true; + } + + if (connman.OutboundTargetReached(false) && !pfrom->fWhitelisted) + { + LogPrint("net", "mempool request with bandwidth limit reached, disconnect peer=%d\n", pfrom->GetId()); + pfrom->fDisconnect = true; + return true; + } + + LOCK(pfrom->cs_inventory); + pfrom->fSendMempool = true; + } + + + else if (strCommand == NetMsgType::PING) + { + if (pfrom->nVersion > BIP0031_VERSION) + { + uint64_t nonce = 0; + vRecv >> nonce; + // Echo the message back with the nonce. This allows for two useful features: + // + // 1) A remote node can quickly check if the connection is operational + // 2) Remote nodes can measure the latency of the network thread. If this node + // is overloaded it won't respond to pings quickly and the remote node can + // avoid sending us more work, like chain download requests. + // + // The nonce stops the remote getting confused between different pings: without + // it, if the remote node sends a ping once per second and this node takes 5 + // seconds to respond to each, the 5th ping the remote sends would appear to + // return very quickly. + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::PONG, nonce)); + } + } + + + else if (strCommand == NetMsgType::PONG) + { + int64_t pingUsecEnd = nTimeReceived; + uint64_t nonce = 0; + size_t nAvail = vRecv.in_avail(); + bool bPingFinished = false; + std::string sProblem; + + if (nAvail >= sizeof(nonce)) { + vRecv >> nonce; + + // Only process pong message if there is an outstanding ping (old ping without nonce should never pong) + if (pfrom->nPingNonceSent != 0) { + if (nonce == pfrom->nPingNonceSent) { + // Matching pong received, this ping is no longer outstanding + bPingFinished = true; + int64_t pingUsecTime = pingUsecEnd - pfrom->nPingUsecStart; + if (pingUsecTime > 0) { + // Successful ping time measurement, replace previous + pfrom->nPingUsecTime = pingUsecTime; + pfrom->nMinPingUsecTime = std::min(pfrom->nMinPingUsecTime, pingUsecTime); + } else { + // This should never happen + sProblem = "Timing mishap"; + } + } else { + // Nonce mismatches are normal when pings are overlapping + sProblem = "Nonce mismatch"; + if (nonce == 0) { + // This is most likely a bug in another implementation somewhere; cancel this ping + bPingFinished = true; + sProblem = "Nonce zero"; + } + } + } else { + sProblem = "Unsolicited pong without ping"; + } + } else { + // This is most likely a bug in another implementation somewhere; cancel this ping + bPingFinished = true; + sProblem = "Short payload"; + } + + if (!(sProblem.empty())) { + LogPrint("net", "pong peer=%d: %s, %x expected, %x received, %u bytes\n", + pfrom->id, + sProblem, + pfrom->nPingNonceSent, + nonce, + nAvail); + } + if (bPingFinished) { + pfrom->nPingNonceSent = 0; + } + } + + + else if (strCommand == NetMsgType::FILTERLOAD) + { + CBloomFilter filter; + vRecv >> filter; + + if (!filter.IsWithinSizeConstraints()) + { + // There is no excuse for sending a too-large filter + LOCK(cs_main); + Misbehaving(pfrom->GetId(), 100); + } + else + { + LOCK(pfrom->cs_filter); + delete pfrom->pfilter; + pfrom->pfilter = new CBloomFilter(filter); + pfrom->pfilter->UpdateEmptyFull(); + pfrom->fRelayTxes = true; + } + } + + + else if (strCommand == NetMsgType::FILTERADD) + { + vector<unsigned char> vData; + vRecv >> vData; + + // Nodes must NEVER send a data item > 520 bytes (the max size for a script data object, + // and thus, the maximum size any matched object can have) in a filteradd message + bool bad = false; + if (vData.size() > MAX_SCRIPT_ELEMENT_SIZE) { + bad = true; + } else { + LOCK(pfrom->cs_filter); + if (pfrom->pfilter) { + pfrom->pfilter->insert(vData); + } else { + bad = true; + } + } + if (bad) { + LOCK(cs_main); + Misbehaving(pfrom->GetId(), 100); + } + } + + + else if (strCommand == NetMsgType::FILTERCLEAR) + { + LOCK(pfrom->cs_filter); + if (pfrom->GetLocalServices() & NODE_BLOOM) { + delete pfrom->pfilter; + pfrom->pfilter = new CBloomFilter(); + } + pfrom->fRelayTxes = true; + } + + + else if (strCommand == NetMsgType::REJECT) + { + if (fDebug) { + try { + string strMsg; unsigned char ccode; string strReason; + vRecv >> LIMITED_STRING(strMsg, CMessageHeader::COMMAND_SIZE) >> ccode >> LIMITED_STRING(strReason, MAX_REJECT_MESSAGE_LENGTH); + + ostringstream ss; + ss << strMsg << " code " << itostr(ccode) << ": " << strReason; + + if (strMsg == NetMsgType::BLOCK || strMsg == NetMsgType::TX) + { + uint256 hash; + vRecv >> hash; + ss << ": hash " << hash.ToString(); + } + LogPrint("net", "Reject %s\n", SanitizeString(ss.str())); + } catch (const std::ios_base::failure&) { + // Avoid feedback loops by preventing reject messages from triggering a new reject message. + LogPrint("net", "Unparseable reject message received\n"); + } + } + } + + else if (strCommand == NetMsgType::FEEFILTER) { + CAmount newFeeFilter = 0; + vRecv >> newFeeFilter; + if (MoneyRange(newFeeFilter)) { + { + LOCK(pfrom->cs_feeFilter); + pfrom->minFeeFilter = newFeeFilter; + } + LogPrint("net", "received: feefilter of %s from peer=%d\n", CFeeRate(newFeeFilter).ToString(), pfrom->id); + } + } + + else if (strCommand == NetMsgType::NOTFOUND) { + // We do not care about the NOTFOUND message, but logging an Unknown Command + // message would be undesirable as we transmit it ourselves. + } + + else { + // Ignore unknown commands for extensibility + LogPrint("net", "Unknown command \"%s\" from peer=%d\n", SanitizeString(strCommand), pfrom->id); + } + + + + return true; +} + +// requires LOCK(cs_vRecvMsg) +bool ProcessMessages(CNode* pfrom, CConnman& connman) +{ + const CChainParams& chainparams = Params(); + unsigned int nMaxSendBufferSize = connman.GetSendBufferSize(); + //if (fDebug) + // LogPrintf("%s(%u messages)\n", __func__, pfrom->vRecvMsg.size()); + + // + // Message format + // (4) message start + // (12) command + // (4) size + // (4) checksum + // (x) data + // + bool fOk = true; + + if (!pfrom->vRecvGetData.empty()) + ProcessGetData(pfrom, chainparams.GetConsensus(), connman); + + // this maintains the order of responses + if (!pfrom->vRecvGetData.empty()) return fOk; + + std::deque<CNetMessage>::iterator it = pfrom->vRecvMsg.begin(); + while (!pfrom->fDisconnect && it != pfrom->vRecvMsg.end()) { + // Don't bother if send buffer is too full to respond anyway + if (pfrom->nSendSize >= nMaxSendBufferSize) + break; + + // get next message + CNetMessage& msg = *it; + + //if (fDebug) + // LogPrintf("%s(message %u msgsz, %u bytes, complete:%s)\n", __func__, + // msg.hdr.nMessageSize, msg.vRecv.size(), + // msg.complete() ? "Y" : "N"); + + // end, if an incomplete message is found + if (!msg.complete()) + break; + + // at this point, any failure means we can delete the current message + it++; + + // Scan for message start + if (memcmp(msg.hdr.pchMessageStart, chainparams.MessageStart(), CMessageHeader::MESSAGE_START_SIZE) != 0) { + LogPrintf("PROCESSMESSAGE: INVALID MESSAGESTART %s peer=%d\n", SanitizeString(msg.hdr.GetCommand()), pfrom->id); + fOk = false; + break; + } + + // Read header + CMessageHeader& hdr = msg.hdr; + if (!hdr.IsValid(chainparams.MessageStart())) + { + LogPrintf("PROCESSMESSAGE: ERRORS IN HEADER %s peer=%d\n", SanitizeString(hdr.GetCommand()), pfrom->id); + continue; + } + string strCommand = hdr.GetCommand(); + + // Message size + unsigned int nMessageSize = hdr.nMessageSize; + + // Checksum + CDataStream& vRecv = msg.vRecv; + const uint256& hash = msg.GetMessageHash(); + if (memcmp(hash.begin(), hdr.pchChecksum, CMessageHeader::CHECKSUM_SIZE) != 0) + { + LogPrintf("%s(%s, %u bytes): CHECKSUM ERROR expected %s was %s\n", __func__, + SanitizeString(strCommand), nMessageSize, + HexStr(hash.begin(), hash.begin()+CMessageHeader::CHECKSUM_SIZE), + HexStr(hdr.pchChecksum, hdr.pchChecksum+CMessageHeader::CHECKSUM_SIZE)); + continue; + } + + // Process message + bool fRet = false; + try + { + fRet = ProcessMessage(pfrom, strCommand, vRecv, msg.nTime, chainparams, connman); + boost::this_thread::interruption_point(); + } + catch (const std::ios_base::failure& e) + { + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_MALFORMED, string("error parsing message"))); + if (strstr(e.what(), "end of data")) + { + // Allow exceptions from under-length message on vRecv + LogPrintf("%s(%s, %u bytes): Exception '%s' caught, normally caused by a message being shorter than its stated length\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); + } + else if (strstr(e.what(), "size too large")) + { + // Allow exceptions from over-long size + LogPrintf("%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); + } + else if (strstr(e.what(), "non-canonical ReadCompactSize()")) + { + // Allow exceptions from non-canonical encoding + LogPrintf("%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); + } + else + { + PrintExceptionContinue(&e, "ProcessMessages()"); + } + } + catch (const boost::thread_interrupted&) { + throw; + } + catch (const std::exception& e) { + PrintExceptionContinue(&e, "ProcessMessages()"); + } catch (...) { + PrintExceptionContinue(NULL, "ProcessMessages()"); + } + + if (!fRet) + LogPrintf("%s(%s, %u bytes) FAILED peer=%d\n", __func__, SanitizeString(strCommand), nMessageSize, pfrom->id); + + break; + } + + // In case the connection got shut down, its receive buffer was wiped + if (!pfrom->fDisconnect) + pfrom->vRecvMsg.erase(pfrom->vRecvMsg.begin(), it); + + return fOk; +} + +class CompareInvMempoolOrder +{ + CTxMemPool *mp; +public: + CompareInvMempoolOrder(CTxMemPool *_mempool) + { + mp = _mempool; + } + + bool operator()(std::set<uint256>::iterator a, std::set<uint256>::iterator b) + { + /* As std::make_heap produces a max-heap, we want the entries with the + * fewest ancestors/highest fee to sort later. */ + return mp->CompareDepthAndScore(*b, *a); + } +}; + +bool SendMessages(CNode* pto, CConnman& connman) +{ + const Consensus::Params& consensusParams = Params().GetConsensus(); + { + // Don't send anything until we get its version message + if (pto->nVersion == 0 || pto->fDisconnect) + return true; + + // If we get here, the outgoing message serialization version is set and can't change. + CNetMsgMaker msgMaker(pto->GetSendVersion()); + + // + // Message: ping + // + bool pingSend = false; + if (pto->fPingQueued) { + // RPC ping request by user + pingSend = true; + } + if (pto->nPingNonceSent == 0 && pto->nPingUsecStart + PING_INTERVAL * 1000000 < GetTimeMicros()) { + // Ping automatically sent as a latency probe & keepalive. + pingSend = true; + } + if (pingSend) { + uint64_t nonce = 0; + while (nonce == 0) { + GetRandBytes((unsigned char*)&nonce, sizeof(nonce)); + } + pto->fPingQueued = false; + pto->nPingUsecStart = GetTimeMicros(); + if (pto->nVersion > BIP0031_VERSION) { + pto->nPingNonceSent = nonce; + connman.PushMessage(pto, msgMaker.Make(NetMsgType::PING, nonce)); + } else { + // Peer is too old to support ping command with nonce, pong will never arrive. + pto->nPingNonceSent = 0; + connman.PushMessage(pto, msgMaker.Make(NetMsgType::PING)); + } + } + + TRY_LOCK(cs_main, lockMain); // Acquire cs_main for IsInitialBlockDownload() and CNodeState() + if (!lockMain) + return true; + + CNodeState &state = *State(pto->GetId()); + + BOOST_FOREACH(const CBlockReject& reject, state.rejects) + connman.PushMessage(pto, msgMaker.Make(NetMsgType::REJECT, (string)NetMsgType::BLOCK, reject.chRejectCode, reject.strRejectReason, reject.hashBlock)); + state.rejects.clear(); + + if (state.fShouldBan) { + state.fShouldBan = false; + if (pto->fWhitelisted) + LogPrintf("Warning: not punishing whitelisted peer %s!\n", pto->addr.ToString()); + else { + pto->fDisconnect = true; + if (pto->addr.IsLocal()) + LogPrintf("Warning: not banning local peer %s!\n", pto->addr.ToString()); + else + { + connman.Ban(pto->addr, BanReasonNodeMisbehaving); + } + return true; + } + } + + // Address refresh broadcast + int64_t nNow = GetTimeMicros(); + if (!IsInitialBlockDownload() && pto->nNextLocalAddrSend < nNow) { + AdvertiseLocal(pto); + pto->nNextLocalAddrSend = PoissonNextSend(nNow, AVG_LOCAL_ADDRESS_BROADCAST_INTERVAL); + } + + // + // Message: addr + // + if (pto->nNextAddrSend < nNow) { + pto->nNextAddrSend = PoissonNextSend(nNow, AVG_ADDRESS_BROADCAST_INTERVAL); + vector<CAddress> vAddr; + vAddr.reserve(pto->vAddrToSend.size()); + BOOST_FOREACH(const CAddress& addr, pto->vAddrToSend) + { + if (!pto->addrKnown.contains(addr.GetKey())) + { + pto->addrKnown.insert(addr.GetKey()); + vAddr.push_back(addr); + // receiver rejects addr messages larger than 1000 + if (vAddr.size() >= 1000) + { + connman.PushMessage(pto, msgMaker.Make(NetMsgType::ADDR, vAddr)); + vAddr.clear(); + } + } + } + pto->vAddrToSend.clear(); + if (!vAddr.empty()) + connman.PushMessage(pto, msgMaker.Make(NetMsgType::ADDR, vAddr)); + // we only send the big addr message once + if (pto->vAddrToSend.capacity() > 40) + pto->vAddrToSend.shrink_to_fit(); + } + + // Start block sync + if (pindexBestHeader == NULL) + pindexBestHeader = chainActive.Tip(); + bool fFetch = state.fPreferredDownload || (nPreferredDownload == 0 && !pto->fClient && !pto->fOneShot); // Download if this is a nice peer, or we have no nice peers and this one might do. + if (!state.fSyncStarted && !pto->fClient && !fImporting && !fReindex) { + // Only actively request headers from a single peer, unless we're close to today. + if ((nSyncStarted == 0 && fFetch) || pindexBestHeader->GetBlockTime() > GetAdjustedTime() - 24 * 60 * 60) { + state.fSyncStarted = true; + nSyncStarted++; + const CBlockIndex *pindexStart = pindexBestHeader; + /* If possible, start at the block preceding the currently + best known header. This ensures that we always get a + non-empty list of headers back as long as the peer + is up-to-date. With a non-empty response, we can initialise + the peer's known best block. This wouldn't be possible + if we requested starting at pindexBestHeader and + got back an empty response. */ + if (pindexStart->pprev) + pindexStart = pindexStart->pprev; + LogPrint("net", "initial getheaders (%d) to peer=%d (startheight:%d)\n", pindexStart->nHeight, pto->id, pto->nStartingHeight); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexStart), uint256())); + } + } + + // Resend wallet transactions that haven't gotten in a block yet + // Except during reindex, importing and IBD, when old wallet + // transactions become unconfirmed and spams other nodes. + if (!fReindex && !fImporting && !IsInitialBlockDownload()) + { + GetMainSignals().Broadcast(nTimeBestReceived, &connman); + } + + // + // Try sending block announcements via headers + // + { + // If we have less than MAX_BLOCKS_TO_ANNOUNCE in our + // list of block hashes we're relaying, and our peer wants + // headers announcements, then find the first header + // not yet known to our peer but would connect, and send. + // If no header would connect, or if we have too many + // blocks, or if the peer doesn't want headers, just + // add all to the inv queue. + LOCK(pto->cs_inventory); + vector<CBlock> vHeaders; + bool fRevertToInv = ((!state.fPreferHeaders && + (!state.fPreferHeaderAndIDs || pto->vBlockHashesToAnnounce.size() > 1)) || + pto->vBlockHashesToAnnounce.size() > MAX_BLOCKS_TO_ANNOUNCE); + CBlockIndex *pBestIndex = NULL; // last header queued for delivery + ProcessBlockAvailability(pto->id); // ensure pindexBestKnownBlock is up-to-date + + if (!fRevertToInv) { + bool fFoundStartingHeader = false; + // Try to find first header that our peer doesn't have, and + // then send all headers past that one. If we come across any + // headers that aren't on chainActive, give up. + BOOST_FOREACH(const uint256 &hash, pto->vBlockHashesToAnnounce) { + BlockMap::iterator mi = mapBlockIndex.find(hash); + assert(mi != mapBlockIndex.end()); + CBlockIndex *pindex = mi->second; + if (chainActive[pindex->nHeight] != pindex) { + // Bail out if we reorged away from this block + fRevertToInv = true; + break; + } + if (pBestIndex != NULL && pindex->pprev != pBestIndex) { + // This means that the list of blocks to announce don't + // connect to each other. + // This shouldn't really be possible to hit during + // regular operation (because reorgs should take us to + // a chain that has some block not on the prior chain, + // which should be caught by the prior check), but one + // way this could happen is by using invalidateblock / + // reconsiderblock repeatedly on the tip, causing it to + // be added multiple times to vBlockHashesToAnnounce. + // Robustly deal with this rare situation by reverting + // to an inv. + fRevertToInv = true; + break; + } + pBestIndex = pindex; + if (fFoundStartingHeader) { + // add this to the headers message + vHeaders.push_back(pindex->GetBlockHeader()); + } else if (PeerHasHeader(&state, pindex)) { + continue; // keep looking for the first new block + } else if (pindex->pprev == NULL || PeerHasHeader(&state, pindex->pprev)) { + // Peer doesn't have this header but they do have the prior one. + // Start sending headers. + fFoundStartingHeader = true; + vHeaders.push_back(pindex->GetBlockHeader()); + } else { + // Peer doesn't have this header or the prior one -- nothing will + // connect, so bail out. + fRevertToInv = true; + break; + } + } + } + if (!fRevertToInv && !vHeaders.empty()) { + if (vHeaders.size() == 1 && state.fPreferHeaderAndIDs) { + // We only send up to 1 block as header-and-ids, as otherwise + // probably means we're doing an initial-ish-sync or they're slow + LogPrint("net", "%s sending header-and-ids %s to peer %d\n", __func__, + vHeaders.front().GetHash().ToString(), pto->id); + //TODO: Shouldn't need to reload block from disk, but requires refactor + CBlock block; + assert(ReadBlockFromDisk(block, pBestIndex, consensusParams)); + CBlockHeaderAndShortTxIDs cmpctblock(block, state.fWantsCmpctWitness); + int nSendFlags = state.fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS; + connman.PushMessage(pto, msgMaker.Make(nSendFlags, NetMsgType::CMPCTBLOCK, cmpctblock)); + state.pindexBestHeaderSent = pBestIndex; + } else if (state.fPreferHeaders) { + if (vHeaders.size() > 1) { + LogPrint("net", "%s: %u headers, range (%s, %s), to peer=%d\n", __func__, + vHeaders.size(), + vHeaders.front().GetHash().ToString(), + vHeaders.back().GetHash().ToString(), pto->id); + } else { + LogPrint("net", "%s: sending header %s to peer=%d\n", __func__, + vHeaders.front().GetHash().ToString(), pto->id); + } + connman.PushMessage(pto, msgMaker.Make(NetMsgType::HEADERS, vHeaders)); + state.pindexBestHeaderSent = pBestIndex; + } else + fRevertToInv = true; + } + if (fRevertToInv) { + // If falling back to using an inv, just try to inv the tip. + // The last entry in vBlockHashesToAnnounce was our tip at some point + // in the past. + if (!pto->vBlockHashesToAnnounce.empty()) { + const uint256 &hashToAnnounce = pto->vBlockHashesToAnnounce.back(); + BlockMap::iterator mi = mapBlockIndex.find(hashToAnnounce); + assert(mi != mapBlockIndex.end()); + CBlockIndex *pindex = mi->second; + + // Warn if we're announcing a block that is not on the main chain. + // This should be very rare and could be optimized out. + // Just log for now. + if (chainActive[pindex->nHeight] != pindex) { + LogPrint("net", "Announcing block %s not on main chain (tip=%s)\n", + hashToAnnounce.ToString(), chainActive.Tip()->GetBlockHash().ToString()); + } + + // If the peer's chain has this block, don't inv it back. + if (!PeerHasHeader(&state, pindex)) { + pto->PushInventory(CInv(MSG_BLOCK, hashToAnnounce)); + LogPrint("net", "%s: sending inv peer=%d hash=%s\n", __func__, + pto->id, hashToAnnounce.ToString()); + } + } + } + pto->vBlockHashesToAnnounce.clear(); + } + + // + // Message: inventory + // + vector<CInv> vInv; + { + LOCK(pto->cs_inventory); + vInv.reserve(std::max<size_t>(pto->vInventoryBlockToSend.size(), INVENTORY_BROADCAST_MAX)); + + // Add blocks + BOOST_FOREACH(const uint256& hash, pto->vInventoryBlockToSend) { + vInv.push_back(CInv(MSG_BLOCK, hash)); + if (vInv.size() == MAX_INV_SZ) { + connman.PushMessage(pto, msgMaker.Make(NetMsgType::INV, vInv)); + vInv.clear(); + } + } + pto->vInventoryBlockToSend.clear(); + + // Check whether periodic sends should happen + bool fSendTrickle = pto->fWhitelisted; + if (pto->nNextInvSend < nNow) { + fSendTrickle = true; + // Use half the delay for outbound peers, as there is less privacy concern for them. + pto->nNextInvSend = PoissonNextSend(nNow, INVENTORY_BROADCAST_INTERVAL >> !pto->fInbound); + } + + // Time to send but the peer has requested we not relay transactions. + if (fSendTrickle) { + LOCK(pto->cs_filter); + if (!pto->fRelayTxes) pto->setInventoryTxToSend.clear(); + } + + // Respond to BIP35 mempool requests + if (fSendTrickle && pto->fSendMempool) { + auto vtxinfo = mempool.infoAll(); + pto->fSendMempool = false; + CAmount filterrate = 0; + { + LOCK(pto->cs_feeFilter); + filterrate = pto->minFeeFilter; + } + + LOCK(pto->cs_filter); + + for (const auto& txinfo : vtxinfo) { + const uint256& hash = txinfo.tx->GetHash(); + CInv inv(MSG_TX, hash); + pto->setInventoryTxToSend.erase(hash); + if (filterrate) { + if (txinfo.feeRate.GetFeePerK() < filterrate) + continue; + } + if (pto->pfilter) { + if (!pto->pfilter->IsRelevantAndUpdate(*txinfo.tx)) continue; + } + pto->filterInventoryKnown.insert(hash); + vInv.push_back(inv); + if (vInv.size() == MAX_INV_SZ) { + connman.PushMessage(pto, msgMaker.Make(NetMsgType::INV, vInv)); + vInv.clear(); + } + } + pto->timeLastMempoolReq = GetTime(); + } + + // Determine transactions to relay + if (fSendTrickle) { + // Produce a vector with all candidates for sending + vector<std::set<uint256>::iterator> vInvTx; + vInvTx.reserve(pto->setInventoryTxToSend.size()); + for (std::set<uint256>::iterator it = pto->setInventoryTxToSend.begin(); it != pto->setInventoryTxToSend.end(); it++) { + vInvTx.push_back(it); + } + CAmount filterrate = 0; + { + LOCK(pto->cs_feeFilter); + filterrate = pto->minFeeFilter; + } + // Topologically and fee-rate sort the inventory we send for privacy and priority reasons. + // A heap is used so that not all items need sorting if only a few are being sent. + CompareInvMempoolOrder compareInvMempoolOrder(&mempool); + std::make_heap(vInvTx.begin(), vInvTx.end(), compareInvMempoolOrder); + // No reason to drain out at many times the network's capacity, + // especially since we have many peers and some will draw much shorter delays. + unsigned int nRelayedTransactions = 0; + LOCK(pto->cs_filter); + while (!vInvTx.empty() && nRelayedTransactions < INVENTORY_BROADCAST_MAX) { + // Fetch the top element from the heap + std::pop_heap(vInvTx.begin(), vInvTx.end(), compareInvMempoolOrder); + std::set<uint256>::iterator it = vInvTx.back(); + vInvTx.pop_back(); + uint256 hash = *it; + // Remove it from the to-be-sent set + pto->setInventoryTxToSend.erase(it); + // Check if not in the filter already + if (pto->filterInventoryKnown.contains(hash)) { + continue; + } + // Not in the mempool anymore? don't bother sending it. + auto txinfo = mempool.info(hash); + if (!txinfo.tx) { + continue; + } + if (filterrate && txinfo.feeRate.GetFeePerK() < filterrate) { + continue; + } + if (pto->pfilter && !pto->pfilter->IsRelevantAndUpdate(*txinfo.tx)) continue; + // Send + vInv.push_back(CInv(MSG_TX, hash)); + nRelayedTransactions++; + { + // Expire old relay messages + while (!vRelayExpiration.empty() && vRelayExpiration.front().first < nNow) + { + mapRelay.erase(vRelayExpiration.front().second); + vRelayExpiration.pop_front(); + } + + auto ret = mapRelay.insert(std::make_pair(hash, std::move(txinfo.tx))); + if (ret.second) { + vRelayExpiration.push_back(std::make_pair(nNow + 15 * 60 * 1000000, ret.first)); + } + } + if (vInv.size() == MAX_INV_SZ) { + connman.PushMessage(pto, msgMaker.Make(NetMsgType::INV, vInv)); + vInv.clear(); + } + pto->filterInventoryKnown.insert(hash); + } + } + } + if (!vInv.empty()) + connman.PushMessage(pto, msgMaker.Make(NetMsgType::INV, vInv)); + + // Detect whether we're stalling + nNow = GetTimeMicros(); + if (state.nStallingSince && state.nStallingSince < nNow - 1000000 * BLOCK_STALLING_TIMEOUT) { + // Stalling only triggers when the block download window cannot move. During normal steady state, + // the download window should be much larger than the to-be-downloaded set of blocks, so disconnection + // should only happen during initial block download. + LogPrintf("Peer=%d is stalling block download, disconnecting\n", pto->id); + pto->fDisconnect = true; + return true; + } + // In case there is a block that has been in flight from this peer for 2 + 0.5 * N times the block interval + // (with N the number of peers from which we're downloading validated blocks), disconnect due to timeout. + // We compensate for other peers to prevent killing off peers due to our own downstream link + // being saturated. We only count validated in-flight blocks so peers can't advertise non-existing block hashes + // to unreasonably increase our timeout. + if (state.vBlocksInFlight.size() > 0) { + QueuedBlock &queuedBlock = state.vBlocksInFlight.front(); + int nOtherPeersWithValidatedDownloads = nPeersWithValidatedDownloads - (state.nBlocksInFlightValidHeaders > 0); + if (nNow > state.nDownloadingSince + consensusParams.nPowTargetSpacing * (BLOCK_DOWNLOAD_TIMEOUT_BASE + BLOCK_DOWNLOAD_TIMEOUT_PER_PEER * nOtherPeersWithValidatedDownloads)) { + LogPrintf("Timeout downloading block %s from peer=%d, disconnecting\n", queuedBlock.hash.ToString(), pto->id); + pto->fDisconnect = true; + return true; + } + } + + // + // Message: getdata (blocks) + // + vector<CInv> vGetData; + if (!pto->fClient && (fFetch || !IsInitialBlockDownload()) && state.nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) { + vector<CBlockIndex*> vToDownload; + NodeId staller = -1; + FindNextBlocksToDownload(pto->GetId(), MAX_BLOCKS_IN_TRANSIT_PER_PEER - state.nBlocksInFlight, vToDownload, staller, consensusParams); + BOOST_FOREACH(CBlockIndex *pindex, vToDownload) { + uint32_t nFetchFlags = GetFetchFlags(pto, pindex->pprev, consensusParams); + vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash())); + MarkBlockAsInFlight(pto->GetId(), pindex->GetBlockHash(), consensusParams, pindex); + LogPrint("net", "Requesting block %s (%d) peer=%d\n", pindex->GetBlockHash().ToString(), + pindex->nHeight, pto->id); + } + if (state.nBlocksInFlight == 0 && staller != -1) { + if (State(staller)->nStallingSince == 0) { + State(staller)->nStallingSince = nNow; + LogPrint("net", "Stall started peer=%d\n", staller); + } + } + } + + // + // Message: getdata (non-blocks) + // + while (!pto->mapAskFor.empty() && (*pto->mapAskFor.begin()).first <= nNow) + { + const CInv& inv = (*pto->mapAskFor.begin()).second; + if (!AlreadyHave(inv)) + { + if (fDebug) + LogPrint("net", "Requesting %s peer=%d\n", inv.ToString(), pto->id); + vGetData.push_back(inv); + if (vGetData.size() >= 1000) + { + connman.PushMessage(pto, msgMaker.Make(NetMsgType::GETDATA, vGetData)); + vGetData.clear(); + } + } else { + //If we're not going to ask, don't expect a response. + pto->setAskFor.erase(inv.hash); + } + pto->mapAskFor.erase(pto->mapAskFor.begin()); + } + if (!vGetData.empty()) + connman.PushMessage(pto, msgMaker.Make(NetMsgType::GETDATA, vGetData)); + + // + // Message: feefilter + // + // We don't want white listed peers to filter txs to us if we have -whitelistforcerelay + if (pto->nVersion >= FEEFILTER_VERSION && GetBoolArg("-feefilter", DEFAULT_FEEFILTER) && + !(pto->fWhitelisted && GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY))) { + CAmount currentFilter = mempool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFeePerK(); + int64_t timeNow = GetTimeMicros(); + if (timeNow > pto->nextSendTimeFeeFilter) { + static FeeFilterRounder filterRounder(::minRelayTxFee); + CAmount filterToSend = filterRounder.round(currentFilter); + if (filterToSend != pto->lastSentFeeFilter) { + connman.PushMessage(pto, msgMaker.Make(NetMsgType::FEEFILTER, filterToSend)); + pto->lastSentFeeFilter = filterToSend; + } + pto->nextSendTimeFeeFilter = PoissonNextSend(timeNow, AVG_FEEFILTER_BROADCAST_INTERVAL); + } + // If the fee filter has changed substantially and it's still more than MAX_FEEFILTER_CHANGE_DELAY + // until scheduled broadcast, then move the broadcast to within MAX_FEEFILTER_CHANGE_DELAY. + else if (timeNow + MAX_FEEFILTER_CHANGE_DELAY * 1000000 < pto->nextSendTimeFeeFilter && + (currentFilter < 3 * pto->lastSentFeeFilter / 4 || currentFilter > 4 * pto->lastSentFeeFilter / 3)) { + pto->nextSendTimeFeeFilter = timeNow + GetRandInt(MAX_FEEFILTER_CHANGE_DELAY) * 1000000; + } + } + } + return true; +} + +class CNetProcessingCleanup +{ +public: + CNetProcessingCleanup() {} + ~CNetProcessingCleanup() { + // orphan transactions + mapOrphanTransactions.clear(); + mapOrphanTransactionsByPrev.clear(); + } +} instance_of_cnetprocessingcleanup; diff --git a/src/net_processing.h b/src/net_processing.h new file mode 100644 index 000000000..130433cc7 --- /dev/null +++ b/src/net_processing.h @@ -0,0 +1,51 @@ +// Copyright (c) 2009-2010 Satoshi Nakamoto +// Copyright (c) 2009-2015 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_NET_PROCESSING_H +#define BITCOIN_NET_PROCESSING_H + +#include "net.h" +#include "validationinterface.h" + +/** Register with a network node to receive its signals */ +void RegisterNodeSignals(CNodeSignals& nodeSignals); +/** Unregister a network node */ +void UnregisterNodeSignals(CNodeSignals& nodeSignals); + +class PeerLogicValidation : public CValidationInterface { +private: + CConnman* connman; + +public: + PeerLogicValidation(CConnman* connmanIn); + + virtual void SyncTransaction(const CTransaction& tx, const CBlockIndex* pindex, int nPosInBlock); + virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload); + virtual void BlockChecked(const CBlock& block, const CValidationState& state); +}; + +struct CNodeStateStats { + int nMisbehavior; + int nSyncHeight; + int nCommonHeight; + std::vector<int> vHeightInFlight; +}; + +/** Get statistics from node state */ +bool GetNodeStateStats(NodeId nodeid, CNodeStateStats &stats); +/** Increase a node's misbehavior score. */ +void Misbehaving(NodeId nodeid, int howmuch); + +/** Process protocol messages received from a given node */ +bool ProcessMessages(CNode* pfrom, CConnman& connman); +/** + * Send queued protocol messages to be sent to a give node. + * + * @param[in] pto The node which we are sending messages to. + * @param[in] connman The connection manager for that node. + */ +bool SendMessages(CNode* pto, CConnman& connman); + +#endif // BITCOIN_NET_PROCESSING_H diff --git a/src/netbase.cpp b/src/netbase.cpp index 9fe34108f..9118584b8 100644 --- a/src/netbase.cpp +++ b/src/netbase.cpp @@ -94,30 +94,9 @@ bool static LookupIntern(const char *pszName, std::vector<CNetAddr>& vIP, unsign } } -#ifdef HAVE_GETADDRINFO_A - struct in_addr ipv4_addr; -#ifdef HAVE_INET_PTON - if (inet_pton(AF_INET, pszName, &ipv4_addr) > 0) { - vIP.push_back(CNetAddr(ipv4_addr)); - return true; - } - - struct in6_addr ipv6_addr; - if (inet_pton(AF_INET6, pszName, &ipv6_addr) > 0) { - vIP.push_back(CNetAddr(ipv6_addr)); - return true; - } -#else - ipv4_addr.s_addr = inet_addr(pszName); - if (ipv4_addr.s_addr != INADDR_NONE) { - vIP.push_back(CNetAddr(ipv4_addr)); - return true; - } -#endif -#endif - struct addrinfo aiHint; memset(&aiHint, 0, sizeof(struct addrinfo)); + aiHint.ai_socktype = SOCK_STREAM; aiHint.ai_protocol = IPPROTO_TCP; aiHint.ai_family = AF_UNSPEC; @@ -126,33 +105,8 @@ bool static LookupIntern(const char *pszName, std::vector<CNetAddr>& vIP, unsign #else aiHint.ai_flags = fAllowLookup ? AI_ADDRCONFIG : AI_NUMERICHOST; #endif - struct addrinfo *aiRes = NULL; -#ifdef HAVE_GETADDRINFO_A - struct gaicb gcb, *query = &gcb; - memset(query, 0, sizeof(struct gaicb)); - gcb.ar_name = pszName; - gcb.ar_request = &aiHint; - int nErr = getaddrinfo_a(GAI_NOWAIT, &query, 1, NULL); - if (nErr) - return false; - - do { - // Should set the timeout limit to a reasonable value to avoid - // generating unnecessary checking call during the polling loop, - // while it can still response to stop request quick enough. - // 2 seconds looks fine in our situation. - struct timespec ts = { 2, 0 }; - gai_suspend(&query, 1, &ts); - boost::this_thread::interruption_point(); - - nErr = gai_error(query); - if (0 == nErr) - aiRes = query->ar_result; - } while (nErr == EAI_INPROGRESS); -#else int nErr = getaddrinfo(pszName, NULL, &aiHint, &aiRes); -#endif if (nErr) return false; diff --git a/src/netmessagemaker.h b/src/netmessagemaker.h new file mode 100644 index 000000000..7167434a1 --- /dev/null +++ b/src/netmessagemaker.h @@ -0,0 +1,36 @@ +// Copyright (c) 2009-2010 Satoshi Nakamoto +// Copyright (c) 2009-2016 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_NETMESSAGEMAKER_H +#define BITCOIN_NETMESSAGEMAKER_H + +#include "net.h" +#include "serialize.h" + +class CNetMsgMaker +{ +public: + CNetMsgMaker(int nVersionIn) : nVersion(nVersionIn){} + + template <typename... Args> + CSerializedNetMsg Make(int nFlags, std::string sCommand, Args&&... args) + { + CSerializedNetMsg msg; + msg.command = std::move(sCommand); + CVectorWriter{ SER_NETWORK, nFlags | nVersion, msg.data, 0, std::forward<Args>(args)... }; + return msg; + } + + template <typename... Args> + CSerializedNetMsg Make(std::string sCommand, Args&&... args) + { + return Make(0, std::move(sCommand), std::forward<Args>(args)...); + } + +private: + const int nVersion; +}; + +#endif // BITCOIN_NETMESSAGEMAKER_H diff --git a/src/policy/fees.cpp b/src/policy/fees.cpp index 7113390cd..9eb831bc1 100644 --- a/src/policy/fees.cpp +++ b/src/policy/fees.cpp @@ -404,7 +404,8 @@ void CBlockPolicyEstimator::processBlock(unsigned int nBlockHeight, CFeeRate CBlockPolicyEstimator::estimateFee(int confTarget) { // Return failure if trying to analyze a target we're not tracking - if (confTarget <= 0 || (unsigned int)confTarget > feeStats.GetMaxConfirms()) + // It's not possible to get reasonable estimates for confTarget of 1 + if (confTarget <= 1 || (unsigned int)confTarget > feeStats.GetMaxConfirms()) return CFeeRate(0); double median = feeStats.EstimateMedianVal(confTarget, SUFFICIENT_FEETXS, MIN_SUCCESS_PCT, true, nBestSeenHeight); @@ -423,6 +424,10 @@ CFeeRate CBlockPolicyEstimator::estimateSmartFee(int confTarget, int *answerFoun if (confTarget <= 0 || (unsigned int)confTarget > feeStats.GetMaxConfirms()) return CFeeRate(0); + // It's not possible to get reasonable estimates for confTarget of 1 + if (confTarget == 1) + confTarget = 2; + double median = -1; while (median < 0 && (unsigned int)confTarget <= feeStats.GetMaxConfirms()) { median = feeStats.EstimateMedianVal(confTarget++, SUFFICIENT_FEETXS, MIN_SUCCESS_PCT, true, nBestSeenHeight); diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp index 3ad1ff7ba..0c71a079f 100644 --- a/src/policy/policy.cpp +++ b/src/policy/policy.cpp @@ -7,7 +7,7 @@ #include "policy/policy.h" -#include "main.h" +#include "validation.h" #include "tinyformat.h" #include "util.h" #include "utilstrencodings.h" diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp index d7452f308..4f48e21a2 100644 --- a/src/qt/bitcoin.cpp +++ b/src/qt/bitcoin.cpp @@ -268,7 +268,22 @@ void BitcoinCore::initialize() try { qDebug() << __func__ << ": Running AppInit2 in thread"; - int rv = AppInit2(threadGroup, scheduler); + if (!AppInitBasicSetup()) + { + Q_EMIT initializeResult(false); + return; + } + if (!AppInitParameterInteraction()) + { + Q_EMIT initializeResult(false); + return; + } + if (!AppInitSanityChecks()) + { + Q_EMIT initializeResult(false); + return; + } + int rv = AppInitMain(threadGroup, scheduler); Q_EMIT initializeResult(rv); } catch (const std::exception& e) { handleRunawayException(&e); diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp index a4bb2f77f..e63a9cc7b 100644 --- a/src/qt/clientmodel.cpp +++ b/src/qt/clientmodel.cpp @@ -12,6 +12,7 @@ #include "chainparams.h" #include "checkpoints.h" #include "clientversion.h" +#include "validation.h" #include "net.h" #include "txmempool.h" #include "ui_interface.h" diff --git a/src/qt/coincontroldialog.cpp b/src/qt/coincontroldialog.cpp index d77db39b3..704e2e256 100644 --- a/src/qt/coincontroldialog.cpp +++ b/src/qt/coincontroldialog.cpp @@ -15,7 +15,7 @@ #include "wallet/coincontrol.h" #include "init.h" -#include "main.h" // For minRelayTxFee +#include "validation.h" // For minRelayTxFee #include "wallet/wallet.h" #include <boost/assign/list_of.hpp> // for 'map_list_of()' diff --git a/src/qt/forms/sendcoinsdialog.ui b/src/qt/forms/sendcoinsdialog.ui index 33db9f893..0a8afa2e7 100644 --- a/src/qt/forms/sendcoinsdialog.ui +++ b/src/qt/forms/sendcoinsdialog.ui @@ -1064,7 +1064,7 @@ <number>0</number> </property> <property name="maximum"> - <number>24</number> + <number>23</number> </property> <property name="pageStep"> <number>1</number> diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp index b2e811929..4806e4143 100644 --- a/src/qt/guiutil.cpp +++ b/src/qt/guiutil.cpp @@ -11,7 +11,7 @@ #include "primitives/transaction.h" #include "init.h" -#include "main.h" // For minRelayTxFee +#include "validation.h" // For minRelayTxFee #include "protocol.h" #include "script/script.h" #include "script/standard.h" diff --git a/src/qt/optionsdialog.cpp b/src/qt/optionsdialog.cpp index 588059d0c..2d5e9ff68 100644 --- a/src/qt/optionsdialog.cpp +++ b/src/qt/optionsdialog.cpp @@ -13,7 +13,7 @@ #include "guiutil.h" #include "optionsmodel.h" -#include "main.h" // for DEFAULT_SCRIPTCHECK_THREADS and MAX_SCRIPTCHECK_THREADS +#include "validation.h" // for DEFAULT_SCRIPTCHECK_THREADS and MAX_SCRIPTCHECK_THREADS #include "netbase.h" #include "txdb.h" // for -dbcache defaults diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp index f82e153b6..d48c4d91e 100644 --- a/src/qt/optionsmodel.cpp +++ b/src/qt/optionsmodel.cpp @@ -13,7 +13,7 @@ #include "amount.h" #include "init.h" -#include "main.h" // For DEFAULT_SCRIPTCHECK_THREADS +#include "validation.h" // For DEFAULT_SCRIPTCHECK_THREADS #include "net.h" #include "netbase.h" #include "txdb.h" // for -dbcache defaults diff --git a/src/qt/optionsmodel.h b/src/qt/optionsmodel.h index b23b5f260..d2e1fb23a 100644 --- a/src/qt/optionsmodel.h +++ b/src/qt/optionsmodel.h @@ -81,7 +81,7 @@ private: int nDisplayUnit; QString strThirdPartyTxUrls; bool fCoinControlFeatures; - /* settings that were overriden by command-line */ + /* settings that were overridden by command-line */ QString strOverriddenByCommandLine; // Add option to list of GUI options overridden through command line/config file diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp index 229752cad..d5f0156d6 100644 --- a/src/qt/paymentserver.cpp +++ b/src/qt/paymentserver.cpp @@ -10,7 +10,7 @@ #include "base58.h" #include "chainparams.h" -#include "main.h" // For minRelayTxFee +#include "validation.h" // For minRelayTxFee #include "ui_interface.h" #include "util.h" #include "wallet/wallet.h" diff --git a/src/qt/peertablemodel.cpp b/src/qt/peertablemodel.cpp index c0b490028..dd4bd5539 100644 --- a/src/qt/peertablemodel.cpp +++ b/src/qt/peertablemodel.cpp @@ -8,6 +8,7 @@ #include "guiconstants.h" #include "guiutil.h" +#include "validation.h" // for cs_main #include "sync.h" #include <QDebug> diff --git a/src/qt/peertablemodel.h b/src/qt/peertablemodel.h index af34b147b..3e4f0a68c 100644 --- a/src/qt/peertablemodel.h +++ b/src/qt/peertablemodel.h @@ -5,7 +5,7 @@ #ifndef BITCOIN_QT_PEERTABLEMODEL_H #define BITCOIN_QT_PEERTABLEMODEL_H -#include "main.h" // For CNodeStateStats +#include "net_processing.h" // For CNodeStateStats #include "net.h" #include <QAbstractTableModel> diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp index 57b217943..13210a1ad 100644 --- a/src/qt/sendcoinsdialog.cpp +++ b/src/qt/sendcoinsdialog.cpp @@ -17,7 +17,7 @@ #include "base58.h" #include "wallet/coincontrol.h" -#include "main.h" // mempool and minRelayTxFee +#include "validation.h" // mempool and minRelayTxFee #include "ui_interface.h" #include "txmempool.h" #include "wallet/wallet.h" @@ -175,7 +175,7 @@ void SendCoinsDialog::setModel(WalletModel *_model) // set the smartfee-sliders default value (wallets default conf.target or last stored value) QSettings settings; if (settings.value("nSmartFeeSliderPosition").toInt() == 0) - ui->sliderSmartFee->setValue(ui->sliderSmartFee->maximum() - model->getDefaultConfirmTarget() + 1); + ui->sliderSmartFee->setValue(ui->sliderSmartFee->maximum() - model->getDefaultConfirmTarget() + 2); else ui->sliderSmartFee->setValue(settings.value("nSmartFeeSliderPosition").toInt()); } @@ -241,7 +241,7 @@ void SendCoinsDialog::on_sendButton_clicked() if (model->getOptionsModel()->getCoinControlFeatures()) ctrl = *CoinControlDialog::coinControl; if (ui->radioSmartFee->isChecked()) - ctrl.nConfirmTarget = ui->sliderSmartFee->maximum() - ui->sliderSmartFee->value() + 1; + ctrl.nConfirmTarget = ui->sliderSmartFee->maximum() - ui->sliderSmartFee->value() + 2; else ctrl.nConfirmTarget = 0; @@ -601,7 +601,7 @@ void SendCoinsDialog::updateGlobalFeeVariables() { if (ui->radioSmartFee->isChecked()) { - int nConfirmTarget = ui->sliderSmartFee->maximum() - ui->sliderSmartFee->value() + 1; + int nConfirmTarget = ui->sliderSmartFee->maximum() - ui->sliderSmartFee->value() + 2; payTxFee = CFeeRate(0); // set nMinimumTotalFee to 0 to not accidentally pay a custom fee @@ -646,7 +646,7 @@ void SendCoinsDialog::updateSmartFeeLabel() if(!model || !model->getOptionsModel()) return; - int nBlocksToConfirm = ui->sliderSmartFee->maximum() - ui->sliderSmartFee->value() + 1; + int nBlocksToConfirm = ui->sliderSmartFee->maximum() - ui->sliderSmartFee->value() + 2; int estimateFoundAtBlocks = nBlocksToConfirm; CFeeRate feeRate = mempool.estimateSmartFee(nBlocksToConfirm, &estimateFoundAtBlocks); if (feeRate <= CFeeRate(0)) // not enough data => minfee diff --git a/src/qt/signverifymessagedialog.cpp b/src/qt/signverifymessagedialog.cpp index 3e42f3a7b..e28a6b47a 100644 --- a/src/qt/signverifymessagedialog.cpp +++ b/src/qt/signverifymessagedialog.cpp @@ -12,7 +12,7 @@ #include "base58.h" #include "init.h" -#include "main.h" // For strMessageMagic +#include "validation.h" // For strMessageMagic #include "wallet/wallet.h" #include <string> diff --git a/src/qt/test/rpcnestedtests.cpp b/src/qt/test/rpcnestedtests.cpp index 3dae33baf..69757f9a9 100644 --- a/src/qt/test/rpcnestedtests.cpp +++ b/src/qt/test/rpcnestedtests.cpp @@ -6,7 +6,7 @@ #include "chainparams.h" #include "consensus/validation.h" -#include "main.h" +#include "validation.h" #include "rpc/register.h" #include "rpc/server.h" #include "rpcconsole.h" diff --git a/src/qt/transactiondesc.cpp b/src/qt/transactiondesc.cpp index 65144e786..01f6ab867 100644 --- a/src/qt/transactiondesc.cpp +++ b/src/qt/transactiondesc.cpp @@ -11,7 +11,7 @@ #include "base58.h" #include "consensus/consensus.h" -#include "main.h" +#include "validation.h" #include "script/script.h" #include "timedata.h" #include "util.h" diff --git a/src/qt/transactionrecord.cpp b/src/qt/transactionrecord.cpp index 4fe47181f..7d7bce7be 100644 --- a/src/qt/transactionrecord.cpp +++ b/src/qt/transactionrecord.cpp @@ -6,7 +6,7 @@ #include "base58.h" #include "consensus/consensus.h" -#include "main.h" +#include "validation.h" #include "timedata.h" #include "wallet/wallet.h" diff --git a/src/qt/transactiontablemodel.cpp b/src/qt/transactiontablemodel.cpp index 52261ff04..da0742aa6 100644 --- a/src/qt/transactiontablemodel.cpp +++ b/src/qt/transactiontablemodel.cpp @@ -14,7 +14,7 @@ #include "walletmodel.h" #include "core_io.h" -#include "main.h" +#include "validation.h" #include "sync.h" #include "uint256.h" #include "util.h" diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp index 3490d1c1c..ab6c4b927 100644 --- a/src/qt/walletmodel.cpp +++ b/src/qt/walletmodel.cpp @@ -14,9 +14,11 @@ #include "base58.h" #include "keystore.h" -#include "main.h" +#include "validation.h" +#include "net.h" // for g_connman #include "sync.h" #include "ui_interface.h" +#include "util.h" // for GetBoolArg #include "wallet/wallet.h" #include "wallet/walletdb.h" // for BackupWallet diff --git a/src/rest.cpp b/src/rest.cpp index 90cca6f48..7d7a7d322 100644 --- a/src/rest.cpp +++ b/src/rest.cpp @@ -7,7 +7,7 @@ #include "chainparams.h" #include "primitives/block.h" #include "primitives/transaction.h" -#include "main.h" +#include "validation.h" #include "httpserver.h" #include "rpc/server.h" #include "streams.h" diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp index 733d14d24..b9b68fc10 100644 --- a/src/rpc/blockchain.cpp +++ b/src/rpc/blockchain.cpp @@ -9,7 +9,7 @@ #include "checkpoints.h" #include "coins.h" #include "consensus/validation.h" -#include "main.h" +#include "validation.h" #include "policy/policy.h" #include "primitives/transaction.h" #include "rpc/server.h" diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp index 6b0e52a30..61408b3b6 100644 --- a/src/rpc/mining.cpp +++ b/src/rpc/mining.cpp @@ -12,7 +12,7 @@ #include "consensus/validation.h" #include "core_io.h" #include "init.h" -#include "main.h" +#include "validation.h" #include "miner.h" #include "net.h" #include "pow.h" @@ -680,7 +680,9 @@ UniValue getblocktemplate(const JSONRPCRequest& request) result.push_back(Pair("curtime", pblock->GetBlockTime())); result.push_back(Pair("bits", strprintf("%08x", pblock->nBits))); result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1))); - if (!pblocktemplate->vchCoinbaseCommitment.empty()) { + + const struct BIP9DeploymentInfo& segwit_info = VersionBitsDeploymentInfo[Consensus::DEPLOYMENT_SEGWIT]; + if (!pblocktemplate->vchCoinbaseCommitment.empty() && setClientRules.find(segwit_info.name) != setClientRules.end()) { result.push_back(Pair("default_witness_commitment", HexStr(pblocktemplate->vchCoinbaseCommitment.begin(), pblocktemplate->vchCoinbaseCommitment.end()))); } @@ -783,6 +785,8 @@ UniValue estimatefee(const JSONRPCRequest& request) "\n" "A negative value is returned if not enough transactions and blocks\n" "have been observed to make an estimate.\n" + "-1 is always returned for nblocks == 1 as it is impossible to calculate\n" + "a fee that is high enough to get reliably included in the next block.\n" "\nExample:\n" + HelpExampleCli("estimatefee", "6") ); diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp index 319398580..2aaee7f3f 100644 --- a/src/rpc/misc.cpp +++ b/src/rpc/misc.cpp @@ -6,7 +6,7 @@ #include "base58.h" #include "clientversion.h" #include "init.h" -#include "main.h" +#include "validation.h" #include "net.h" #include "netbase.h" #include "rpc/server.h" diff --git a/src/rpc/net.cpp b/src/rpc/net.cpp index f57ba76d3..53c0f993d 100644 --- a/src/rpc/net.cpp +++ b/src/rpc/net.cpp @@ -6,8 +6,9 @@ #include "chainparams.h" #include "clientversion.h" -#include "main.h" +#include "validation.h" #include "net.h" +#include "net_processing.h" #include "netbase.h" #include "protocol.h" #include "sync.h" diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp index 370c021ea..ce16870d3 100644 --- a/src/rpc/rawtransaction.cpp +++ b/src/rpc/rawtransaction.cpp @@ -10,7 +10,7 @@ #include "core_io.h" #include "init.h" #include "keystore.h" -#include "main.h" +#include "validation.h" #include "merkleblock.h" #include "net.h" #include "policy/policy.h" diff --git a/src/streams.h b/src/streams.h index c3e7c9e9e..b50878423 100644 --- a/src/streams.h +++ b/src/streams.h @@ -69,6 +69,75 @@ OverrideStream<S> WithOrVersion(S* s, int nVersionFlag) return OverrideStream<S>(s, s->GetType(), s->GetVersion() | nVersionFlag); } +/* Minimal stream for overwriting and/or appending to an existing byte vector + * + * The referenced vector will grow as necessary + */ +class CVectorWriter +{ + public: + +/* + * @param[in] nTypeIn Serialization Type + * @param[in] nVersionIn Serialization Version (including any flags) + * @param[in] vchDataIn Referenced byte vector to overwrite/append + * @param[in] nPosIn Starting position. Vector index where writes should start. The vector will initially + * grow as necessary to max(index, vec.size()). So to append, use vec.size(). +*/ + CVectorWriter(int nTypeIn, int nVersionIn, std::vector<unsigned char>& vchDataIn, size_t nPosIn) : nType(nTypeIn), nVersion(nVersionIn), vchData(vchDataIn), nPos(nPosIn) + { + if(nPos > vchData.size()) + vchData.resize(nPos); + } +/* + * (other params same as above) + * @param[in] args A list of items to serialize starting at nPos. +*/ + template <typename... Args> + CVectorWriter(int nTypeIn, int nVersionIn, std::vector<unsigned char>& vchDataIn, size_t nPosIn, Args&&... args) : CVectorWriter(nTypeIn, nVersionIn, vchDataIn, nPosIn) + { + ::SerializeMany(*this, std::forward<Args>(args)...); + } + void write(const char* pch, size_t nSize) + { + assert(nPos <= vchData.size()); + size_t nOverwrite = std::min(nSize, vchData.size() - nPos); + if (nOverwrite) { + memcpy(vchData.data() + nPos, reinterpret_cast<const unsigned char*>(pch), nOverwrite); + } + if (nOverwrite < nSize) { + vchData.insert(vchData.end(), reinterpret_cast<const unsigned char*>(pch) + nOverwrite, reinterpret_cast<const unsigned char*>(pch) + nSize); + } + nPos += nSize; + } + template<typename T> + CVectorWriter& operator<<(const T& obj) + { + // Serialize to this stream + ::Serialize(*this, obj); + return (*this); + } + int GetVersion() const + { + return nVersion; + } + int GetType() const + { + return nType; + } + void seek(size_t nSize) + { + nPos += nSize; + if(nPos > vchData.size()) + vchData.resize(nPos); + } +private: + const int nType; + const int nVersion; + std::vector<unsigned char>& vchData; + size_t nPos; +}; + /** Double ended buffer combining vector and stream-like interfaces. * * >> and << read and write unformatted data using the above serialization templates. diff --git a/src/support/lockedpool.h b/src/support/lockedpool.h index 340341543..f5212bc26 100644 --- a/src/support/lockedpool.h +++ b/src/support/lockedpool.h @@ -109,7 +109,7 @@ private: * An arena manages a contiguous region of memory. The pool starts out with one arena * but can grow to multiple arenas if the need arises. * - * Unlike a normal C heap, the administrative structures are seperate from the managed + * Unlike a normal C heap, the administrative structures are separate from the managed * memory. This has been done as the sizes and bases of objects are not in themselves sensitive * information, as to conserve precious locked memory. In some operating systems * the amount of memory that can be locked is small. diff --git a/src/test/DoS_tests.cpp b/src/test/DoS_tests.cpp index 6eed63608..1a818a575 100644 --- a/src/test/DoS_tests.cpp +++ b/src/test/DoS_tests.cpp @@ -6,8 +6,8 @@ #include "chainparams.h" #include "keystore.h" -#include "main.h" #include "net.h" +#include "net_processing.h" #include "pow.h" #include "script/sign.h" #include "serialize.h" diff --git a/src/test/bitcoin-util-test.py b/src/test/bitcoin-util-test.py index 4301b93b7..1c090b3f3 100755 --- a/src/test/bitcoin-util-test.py +++ b/src/test/bitcoin-util-test.py @@ -15,7 +15,7 @@ help_text="""Test framework for bitcoin utils. Runs automatically during `make check`. -Can also be run manually from the src directory by specifiying the source directory: +Can also be run manually from the src directory by specifying the source directory: test/bitcoin-util-test.py --srcdir='srcdir' [--verbose] """ diff --git a/src/test/bloom_tests.cpp b/src/test/bloom_tests.cpp index 25fb9ea2b..ffa1fb6ad 100644 --- a/src/test/bloom_tests.cpp +++ b/src/test/bloom_tests.cpp @@ -30,15 +30,15 @@ BOOST_AUTO_TEST_CASE(bloom_create_insert_serialize) CBloomFilter filter(3, 0.01, 0, BLOOM_UPDATE_ALL); filter.insert(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")); - BOOST_CHECK_MESSAGE( filter.contains(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")), "BloomFilter doesn't contain just-inserted object!"); + BOOST_CHECK_MESSAGE( filter.contains(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")), "Bloom filter doesn't contain just-inserted object!"); // One bit different in first byte - BOOST_CHECK_MESSAGE(!filter.contains(ParseHex("19108ad8ed9bb6274d3980bab5a85c048f0950c8")), "BloomFilter contains something it shouldn't!"); + BOOST_CHECK_MESSAGE(!filter.contains(ParseHex("19108ad8ed9bb6274d3980bab5a85c048f0950c8")), "Bloom filter contains something it shouldn't!"); filter.insert(ParseHex("b5a2c786d9ef4658287ced5914b37a1b4aa32eee")); - BOOST_CHECK_MESSAGE(filter.contains(ParseHex("b5a2c786d9ef4658287ced5914b37a1b4aa32eee")), "BloomFilter doesn't contain just-inserted object (2)!"); + BOOST_CHECK_MESSAGE(filter.contains(ParseHex("b5a2c786d9ef4658287ced5914b37a1b4aa32eee")), "Bloom filter doesn't contain just-inserted object (2)!"); filter.insert(ParseHex("b9300670b4c5366e95b2699e8b18bc75e5f729c5")); - BOOST_CHECK_MESSAGE(filter.contains(ParseHex("b9300670b4c5366e95b2699e8b18bc75e5f729c5")), "BloomFilter doesn't contain just-inserted object (3)!"); + BOOST_CHECK_MESSAGE(filter.contains(ParseHex("b9300670b4c5366e95b2699e8b18bc75e5f729c5")), "Bloom filter doesn't contain just-inserted object (3)!"); CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); stream << filter; @@ -51,9 +51,9 @@ BOOST_AUTO_TEST_CASE(bloom_create_insert_serialize) BOOST_CHECK_EQUAL_COLLECTIONS(stream.begin(), stream.end(), expected.begin(), expected.end()); - BOOST_CHECK_MESSAGE( filter.contains(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")), "BloomFilter doesn't contain just-inserted object!"); + BOOST_CHECK_MESSAGE( filter.contains(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")), "Bloom filter doesn't contain just-inserted object!"); filter.clear(); - BOOST_CHECK_MESSAGE( !filter.contains(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")), "BloomFilter should be empty!"); + BOOST_CHECK_MESSAGE( !filter.contains(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")), "Bloom filter should be empty!"); } BOOST_AUTO_TEST_CASE(bloom_create_insert_serialize_with_tweak) @@ -62,15 +62,15 @@ BOOST_AUTO_TEST_CASE(bloom_create_insert_serialize_with_tweak) CBloomFilter filter(3, 0.01, 2147483649UL, BLOOM_UPDATE_ALL); filter.insert(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")); - BOOST_CHECK_MESSAGE( filter.contains(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")), "BloomFilter doesn't contain just-inserted object!"); + BOOST_CHECK_MESSAGE( filter.contains(ParseHex("99108ad8ed9bb6274d3980bab5a85c048f0950c8")), "Bloom filter doesn't contain just-inserted object!"); // One bit different in first byte - BOOST_CHECK_MESSAGE(!filter.contains(ParseHex("19108ad8ed9bb6274d3980bab5a85c048f0950c8")), "BloomFilter contains something it shouldn't!"); + BOOST_CHECK_MESSAGE(!filter.contains(ParseHex("19108ad8ed9bb6274d3980bab5a85c048f0950c8")), "Bloom filter contains something it shouldn't!"); filter.insert(ParseHex("b5a2c786d9ef4658287ced5914b37a1b4aa32eee")); - BOOST_CHECK_MESSAGE(filter.contains(ParseHex("b5a2c786d9ef4658287ced5914b37a1b4aa32eee")), "BloomFilter doesn't contain just-inserted object (2)!"); + BOOST_CHECK_MESSAGE(filter.contains(ParseHex("b5a2c786d9ef4658287ced5914b37a1b4aa32eee")), "Bloom filter doesn't contain just-inserted object (2)!"); filter.insert(ParseHex("b9300670b4c5366e95b2699e8b18bc75e5f729c5")); - BOOST_CHECK_MESSAGE(filter.contains(ParseHex("b9300670b4c5366e95b2699e8b18bc75e5f729c5")), "BloomFilter doesn't contain just-inserted object (3)!"); + BOOST_CHECK_MESSAGE(filter.contains(ParseHex("b9300670b4c5366e95b2699e8b18bc75e5f729c5")), "Bloom filter doesn't contain just-inserted object (3)!"); CDataStream stream(SER_NETWORK, PROTOCOL_VERSION); stream << filter; diff --git a/src/test/coins_tests.cpp b/src/test/coins_tests.cpp index 82de30205..79dea00e4 100644 --- a/src/test/coins_tests.cpp +++ b/src/test/coins_tests.cpp @@ -8,7 +8,7 @@ #include "utilstrencodings.h" #include "test/test_bitcoin.h" #include "test/test_random.h" -#include "main.h" +#include "validation.h" #include "consensus/validation.h" #include <vector> diff --git a/src/test/data/tx_valid.json b/src/test/data/tx_valid.json index 2f299aa5f..27acb2f16 100644 --- a/src/test/data/tx_valid.json +++ b/src/test/data/tx_valid.json @@ -53,7 +53,7 @@ ["The following tests for the presence of a bug in the handling of SIGHASH_SINGLE"], ["It results in signing the constant 1, instead of something generated based on the transaction,"], ["when the input doing the signing has an index greater than the maximum output index"], -[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "DUP HASH160 0x14 0xe52b482f2faa8ecbf0db344f93c84ac908557f33 EQUALVERIFY CHECKSIG"], ["0000000000000000000000000000000000000000000000000000000000000200", 0, "1"]], +[[["0000000000000000000000000000000000000000000000000000000000000200", 0, "1"], ["0000000000000000000000000000000000000000000000000000000000000100", 0, "DUP HASH160 0x14 0xe52b482f2faa8ecbf0db344f93c84ac908557f33 EQUALVERIFY CHECKSIG"]], "01000000020002000000000000000000000000000000000000000000000000000000000000000000000151ffffffff0001000000000000000000000000000000000000000000000000000000000000000000006b483045022100c9cdd08798a28af9d1baf44a6c77bcc7e279f47dc487c8c899911bc48feaffcc0220503c5c50ae3998a733263c5c0f7061b483e2b56c4c41b456e7d2f5a78a74c077032102d5c25adb51b61339d2b05315791e21bbe80ea470a49db0135720983c905aace0ffffffff010000000000000000015100000000", "P2SH"], ["An invalid P2SH Transaction"], @@ -334,9 +334,9 @@ "0100000000010100010000000000000000000000000000000000000000000000000000000000000000000023220020ff25429251b5a84f452230a3c75fd886b7fc5a7865ce4a7bb7a9d7c5be6da3dbffffffff01e8030000000000001976a9144c9c3dfac4207d5d8cb89df5722cb3d712385e3f88ac02483045022100aa5d8aa40a90f23ce2c3d11bc845ca4a12acd99cbea37de6b9f6d86edebba8cb022022dedc2aa0a255f74d04c0b76ece2d7c691f9dd11a64a8ac49f62a99c3a05f9d01232103596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc71ac00000000", "P2SH,WITNESS"], ["Witness with SigHash Single|AnyoneCanPay"], -[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1100], +[[["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3100], ["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], -["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3100], +["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1100], ["0000000000000000000000000000000000000000000000000000000000000100", 3, "0x51", 4100]], "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", "P2SH,WITNESS"], @@ -359,9 +359,9 @@ "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", "P2SH,WITNESS"], ["Witness with SigHash None|AnyoneCanPay"], -[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1100], +[[["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3100], +["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1100], ["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], -["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3100], ["0000000000000000000000000000000000000000000000000000000000000100", 3, "0x51", 4100]], "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", "P2SH,WITNESS"], @@ -390,9 +390,9 @@ "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", "P2SH,WITNESS"], ["Witness with SigHash All|AnyoneCanPay"], -[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1100], +[[["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3100], +["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x51", 1100], ["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 2000], -["0000000000000000000000000000000000000000000000000000000000000100", 2, "0x51", 3100], ["0000000000000000000000000000000000000000000000000000000000000100", 3, "0x51", 4100]], "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", "P2SH,WITNESS"], @@ -458,8 +458,8 @@ "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", "P2SH,WITNESS"], ["Witness Single|AnyoneCanPay does not hash input's position (permutation)"], -[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1000], -["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1001]], +[[["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1001], +["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x00 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1000]], "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", "P2SH,WITNESS"], ["Non witness Single|AnyoneCanPay hash input's position"], diff --git a/src/test/limitedmap_tests.cpp b/src/test/limitedmap_tests.cpp index faaddffad..e3531486a 100644 --- a/src/test/limitedmap_tests.cpp +++ b/src/test/limitedmap_tests.cpp @@ -47,7 +47,7 @@ BOOST_AUTO_TEST_CASE(limitedmap_test) // make sure the item is present BOOST_CHECK(map.count(i) == 1); - // use the iterator to check for the expected key adn value + // use the iterator to check for the expected key and value BOOST_CHECK(it->first == i); BOOST_CHECK(it->second == i + 1); diff --git a/src/test/main_tests.cpp b/src/test/main_tests.cpp index dbfbdd934..697fbf792 100644 --- a/src/test/main_tests.cpp +++ b/src/test/main_tests.cpp @@ -3,7 +3,8 @@ // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "chainparams.h" -#include "main.h" +#include "validation.h" +#include "net.h" #include "test/test_bitcoin.h" diff --git a/src/test/miner_tests.cpp b/src/test/miner_tests.cpp index aea892093..ca703841d 100644 --- a/src/test/miner_tests.cpp +++ b/src/test/miner_tests.cpp @@ -7,7 +7,7 @@ #include "consensus/consensus.h" #include "consensus/merkle.h" #include "consensus/validation.h" -#include "main.h" +#include "validation.h" #include "miner.h" #include "pubkey.h" #include "script/standard.h" @@ -214,6 +214,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity) txCoinbase.vin[0].scriptSig = CScript(); txCoinbase.vin[0].scriptSig.push_back(blockinfo[i].extranonce); txCoinbase.vin[0].scriptSig.push_back(chainActive.Height()); + txCoinbase.vout.resize(1); // Ignore the (optional) segwit commitment added by CreateNewBlock (as the hardcoded nonces don't account for this) txCoinbase.vout[0].scriptPubKey = CScript(); pblock->vtx[0] = MakeTransactionRef(std::move(txCoinbase)); if (txFirst.size() == 0) diff --git a/src/test/policyestimator_tests.cpp b/src/test/policyestimator_tests.cpp index 7dc8f226c..c57feaec9 100644 --- a/src/test/policyestimator_tests.cpp +++ b/src/test/policyestimator_tests.cpp @@ -95,17 +95,22 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates) // Highest feerate is 10*baseRate and gets in all blocks, // second highest feerate is 9*baseRate and gets in 9/10 blocks = 90%, // third highest feerate is 8*base rate, and gets in 8/10 blocks = 80%, - // so estimateFee(1) should return 10*baseRate. + // so estimateFee(1) would return 10*baseRate but is hardcoded to return failure // Second highest feerate has 100% chance of being included by 2 blocks, // so estimateFee(2) should return 9*baseRate etc... for (int i = 1; i < 10;i++) { origFeeEst.push_back(mpool.estimateFee(i).GetFeePerK()); - if (i > 1) { // Fee estimates should be monotonically decreasing + if (i > 2) { // Fee estimates should be monotonically decreasing BOOST_CHECK(origFeeEst[i-1] <= origFeeEst[i-2]); } int mult = 11-i; - BOOST_CHECK(origFeeEst[i-1] < mult*baseRate.GetFeePerK() + deltaFee); - BOOST_CHECK(origFeeEst[i-1] > mult*baseRate.GetFeePerK() - deltaFee); + if (i > 1) { + BOOST_CHECK(origFeeEst[i-1] < mult*baseRate.GetFeePerK() + deltaFee); + BOOST_CHECK(origFeeEst[i-1] > mult*baseRate.GetFeePerK() - deltaFee); + } + else { + BOOST_CHECK(origFeeEst[i-1] == CFeeRate(0).GetFeePerK()); + } } // Mine 50 more blocks with no transactions happening, estimates shouldn't change @@ -113,7 +118,8 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates) while (blocknum < 250) mpool.removeForBlock(block, ++blocknum); - for (int i = 1; i < 10;i++) { + BOOST_CHECK(mpool.estimateFee(1) == CFeeRate(0)); + for (int i = 2; i < 10;i++) { BOOST_CHECK(mpool.estimateFee(i).GetFeePerK() < origFeeEst[i-1] + deltaFee); BOOST_CHECK(mpool.estimateFee(i).GetFeePerK() > origFeeEst[i-1] - deltaFee); } @@ -151,7 +157,8 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates) } mpool.removeForBlock(block, 265); block.clear(); - for (int i = 1; i < 10;i++) { + BOOST_CHECK(mpool.estimateFee(1) == CFeeRate(0)); + for (int i = 2; i < 10;i++) { BOOST_CHECK(mpool.estimateFee(i).GetFeePerK() > origFeeEst[i-1] - deltaFee); } @@ -172,7 +179,8 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates) mpool.removeForBlock(block, ++blocknum); block.clear(); } - for (int i = 1; i < 10; i++) { + BOOST_CHECK(mpool.estimateFee(1) == CFeeRate(0)); + for (int i = 2; i < 10; i++) { BOOST_CHECK(mpool.estimateFee(i).GetFeePerK() < origFeeEst[i-1] - deltaFee); } diff --git a/src/test/script_P2SH_tests.cpp b/src/test/script_P2SH_tests.cpp index 1a01593a8..789cc70d7 100644 --- a/src/test/script_P2SH_tests.cpp +++ b/src/test/script_P2SH_tests.cpp @@ -5,7 +5,7 @@ #include "core_io.h" #include "key.h" #include "keystore.h" -#include "main.h" +#include "validation.h" #include "policy/policy.h" #include "script/script.h" #include "script/script_error.h" diff --git a/src/test/sighash_tests.cpp b/src/test/sighash_tests.cpp index 3bc8341b0..38d58e7ab 100644 --- a/src/test/sighash_tests.cpp +++ b/src/test/sighash_tests.cpp @@ -5,7 +5,7 @@ #include "consensus/validation.h" #include "data/sighash.json.h" #include "hash.h" -#include "main.h" // For CheckTransaction +#include "validation.h" // For CheckTransaction #include "script/interpreter.h" #include "script/script.h" #include "serialize.h" diff --git a/src/test/sigopcount_tests.cpp b/src/test/sigopcount_tests.cpp index e8a63ae60..2e974cc61 100644 --- a/src/test/sigopcount_tests.cpp +++ b/src/test/sigopcount_tests.cpp @@ -2,7 +2,7 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. -#include "main.h" +#include "validation.h" #include "pubkey.h" #include "key.h" #include "script/script.h" diff --git a/src/test/streams_tests.cpp b/src/test/streams_tests.cpp index 34f501e86..8b715ce93 100644 --- a/src/test/streams_tests.cpp +++ b/src/test/streams_tests.cpp @@ -15,6 +15,64 @@ using namespace boost::assign; // bring 'operator+=()' into scope BOOST_FIXTURE_TEST_SUITE(streams_tests, BasicTestingSetup) +BOOST_AUTO_TEST_CASE(streams_vector_writer) +{ + unsigned char a(1); + unsigned char b(2); + unsigned char bytes[] = { 3, 4, 5, 6 }; + std::vector<unsigned char> vch; + + // Each test runs twice. Serializing a second time at the same starting + // point should yield the same results, even if the first test grew the + // vector. + + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 0, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{1, 2}})); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 0, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{1, 2}})); + vch.clear(); + + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 2, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 1, 2}})); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 2, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 1, 2}})); + vch.clear(); + + vch.resize(5, 0); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 2, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 1, 2, 0}})); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 2, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 1, 2, 0}})); + vch.clear(); + + vch.resize(4, 0); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 3, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 0, 1, 2}})); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 3, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 0, 1, 2}})); + vch.clear(); + + vch.resize(4, 0); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 4, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 0, 0, 1, 2}})); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 4, a, b); + BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 0, 0, 1, 2}})); + vch.clear(); + + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 0, FLATDATA(bytes)); + BOOST_CHECK((vch == std::vector<unsigned char>{{3, 4, 5, 6}})); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 0, FLATDATA(bytes)); + BOOST_CHECK((vch == std::vector<unsigned char>{{3, 4, 5, 6}})); + vch.clear(); + + vch.resize(4, 8); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 2, a, FLATDATA(bytes), b); + BOOST_CHECK((vch == std::vector<unsigned char>{{8, 8, 1, 3, 4, 5, 6, 2}})); + CVectorWriter(SER_NETWORK, INIT_PROTO_VERSION, vch, 2, a, FLATDATA(bytes), b); + BOOST_CHECK((vch == std::vector<unsigned char>{{8, 8, 1, 3, 4, 5, 6, 2}})); + vch.clear(); +} + BOOST_AUTO_TEST_CASE(streams_serializedata_xor) { std::vector<char> in; diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp index 6cbe314a7..f979d01a3 100644 --- a/src/test/test_bitcoin.cpp +++ b/src/test/test_bitcoin.cpp @@ -10,8 +10,9 @@ #include "consensus/consensus.h" #include "consensus/validation.h" #include "key.h" -#include "main.h" +#include "validation.h" #include "miner.h" +#include "net_processing.h" #include "pubkey.h" #include "random.h" #include "txdb.h" diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp index 34d9547f3..7b4763669 100644 --- a/src/test/transaction_tests.cpp +++ b/src/test/transaction_tests.cpp @@ -12,7 +12,7 @@ #include "core_io.h" #include "key.h" #include "keystore.h" -#include "main.h" // For CheckTransaction +#include "validation.h" // For CheckTransaction #include "policy/policy.h" #include "script/script.h" #include "script/sign.h" diff --git a/src/test/txvalidationcache_tests.cpp b/src/test/txvalidationcache_tests.cpp index 76e4e7a4b..55b4d28fb 100644 --- a/src/test/txvalidationcache_tests.cpp +++ b/src/test/txvalidationcache_tests.cpp @@ -4,7 +4,7 @@ #include "consensus/validation.h" #include "key.h" -#include "main.h" +#include "validation.h" #include "miner.h" #include "pubkey.h" #include "txmempool.h" diff --git a/src/test/versionbits_tests.cpp b/src/test/versionbits_tests.cpp index c05d593ed..bae0eff7e 100644 --- a/src/test/versionbits_tests.cpp +++ b/src/test/versionbits_tests.cpp @@ -7,7 +7,7 @@ #include "test/test_bitcoin.h" #include "test/test_random.h" #include "chainparams.h" -#include "main.h" +#include "validation.h" #include "consensus/params.h" #include <boost/test/unit_test.hpp> diff --git a/src/torcontrol.cpp b/src/torcontrol.cpp index 1ca6b4656..ffb9993f9 100644 --- a/src/torcontrol.cpp +++ b/src/torcontrol.cpp @@ -470,7 +470,7 @@ void TorController::auth_cb(TorControlConnection& _conn, const TorControlReply& // Finally - now create the service if (private_key.empty()) // No private key, generate one - private_key = "NEW:BEST"; + private_key = "NEW:RSA1024"; // Explicitly request RSA1024 - see issue #9214 // Request hidden service, redirect port. // Note that the 'virtual' port doesn't have to be the same as our internal port, but this is just a convenient // choice. TODO; refactor the shutdown sequence some day. diff --git a/src/txmempool.cpp b/src/txmempool.cpp index 417a88cbe..c035a84db 100644 --- a/src/txmempool.cpp +++ b/src/txmempool.cpp @@ -8,7 +8,7 @@ #include "clientversion.h" #include "consensus/consensus.h" #include "consensus/validation.h" -#include "main.h" +#include "validation.h" #include "policy/policy.h" #include "policy/fees.h" #include "streams.h" diff --git a/src/txmempool.h b/src/txmempool.h index 29b59363a..23fe5a7ab 100644 --- a/src/txmempool.h +++ b/src/txmempool.h @@ -62,7 +62,7 @@ class CTxMemPool; /** \class CTxMemPoolEntry * - * CTxMemPoolEntry stores data about the correponding transaction, as well + * CTxMemPoolEntry stores data about the corresponding transaction, as well * as data about all in-mempool transactions that depend on the transaction * ("descendant" transactions). * diff --git a/src/util.cpp b/src/util.cpp index c20ede622..014013d21 100644 --- a/src/util.cpp +++ b/src/util.cpp @@ -107,7 +107,6 @@ map<string, vector<string> > mapMultiArgs; bool fDebug = false; bool fPrintToConsole = false; bool fPrintToDebugLog = true; -bool fServer = false; string strMiscWarning; bool fLogTimestamps = DEFAULT_LOGTIMESTAMPS; bool fLogTimeMicros = DEFAULT_LOGTIMEMICROS; @@ -259,7 +258,7 @@ bool LogAcceptCategory(const char* category) * suppress printing of the timestamp when multiple calls are made that don't * end in a newline. Initialize it to true, and hold it, in the calling context. */ -static std::string LogTimestampStr(const std::string &str, bool *fStartedNewLine) +static std::string LogTimestampStr(const std::string &str, std::atomic_bool *fStartedNewLine) { string strStamped; @@ -286,7 +285,7 @@ static std::string LogTimestampStr(const std::string &str, bool *fStartedNewLine int LogPrintStr(const std::string &str) { int ret = 0; // Returns total number of characters written - static bool fStartedNewLine = true; + static std::atomic_bool fStartedNewLine(true); string strTimestamped = LogTimestampStr(str, &fStartedNewLine); diff --git a/src/util.h b/src/util.h index bbb9b5db8..e8aa266f2 100644 --- a/src/util.h +++ b/src/util.h @@ -46,7 +46,6 @@ extern std::map<std::string, std::vector<std::string> > mapMultiArgs; extern bool fDebug; extern bool fPrintToConsole; extern bool fPrintToDebugLog; -extern bool fServer; extern std::string strMiscWarning; extern bool fLogTimestamps; extern bool fLogTimeMicros; diff --git a/src/utiltime.cpp b/src/utiltime.cpp index da590f888..51d545ef8 100644 --- a/src/utiltime.cpp +++ b/src/utiltime.cpp @@ -74,8 +74,9 @@ void MilliSleep(int64_t n) std::string DateTimeStrFormat(const char* pszFormat, int64_t nTime) { + static std::locale classic(std::locale::classic()); // std::locale takes ownership of the pointer - std::locale loc(std::locale::classic(), new boost::posix_time::time_facet(pszFormat)); + std::locale loc(classic, new boost::posix_time::time_facet(pszFormat)); std::stringstream ss; ss.imbue(loc); ss << boost::posix_time::from_time_t(nTime); diff --git a/src/main.cpp b/src/validation.cpp index 05442057e..9cfb5221a 100644 --- a/src/main.cpp +++ b/src/validation.cpp @@ -3,11 +3,9 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. -#include "main.h" +#include "validation.h" -#include "addrman.h" #include "arith_uint256.h" -#include "blockencodings.h" #include "chainparams.h" #include "checkpoints.h" #include "checkqueue.h" @@ -16,9 +14,6 @@ #include "consensus/validation.h" #include "hash.h" #include "init.h" -#include "merkleblock.h" -#include "net.h" -#include "netbase.h" #include "policy/fees.h" #include "policy/policy.h" #include "pow.h" @@ -28,6 +23,7 @@ #include "script/script.h" #include "script/sigcache.h" #include "script/standard.h" +#include "timedata.h" #include "tinyformat.h" #include "txdb.h" #include "txmempool.h" @@ -64,11 +60,10 @@ CCriticalSection cs_main; BlockMap mapBlockIndex; CChain chainActive; CBlockIndex *pindexBestHeader = NULL; -int64_t nTimeBestReceived = 0; // Used only to inform the wallet of when we last received a block CWaitableCriticalSection csBestBlock; CConditionVariable cvBlockChange; int nScriptCheckThreads = 0; -bool fImporting = false; +std::atomic_bool fImporting(false); bool fReindex = false; bool fTxIndex = false; bool fHavePruned = false; @@ -87,25 +82,6 @@ CFeeRate minRelayTxFee = CFeeRate(DEFAULT_MIN_RELAY_TX_FEE); CAmount maxTxFee = DEFAULT_TRANSACTION_MAXFEE; CTxMemPool mempool(::minRelayTxFee); -FeeFilterRounder filterRounder(::minRelayTxFee); - -struct IteratorComparator -{ - template<typename I> - bool operator()(const I& a, const I& b) - { - return &(*a) < &(*b); - } -}; - -struct COrphanTx { - CTransaction tx; - NodeId fromPeer; - int64_t nTimeExpire; -}; -map<uint256, COrphanTx> mapOrphanTransactions GUARDED_BY(cs_main); -map<COutPoint, set<map<uint256, COrphanTx>::iterator, IteratorComparator>> mapOrphanTransactionsByPrev GUARDED_BY(cs_main); -void EraseOrphansFor(NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(cs_main); static void CheckBlockIndex(const Consensus::Params& consensusParams); @@ -114,8 +90,6 @@ CScript COINBASE_FLAGS; const string strMessageMagic = "Bitcoin Signed Message:\n"; -static const uint64_t RANDOMIZER_ID_ADDRESS_RELAY = 0x3cac0035b5866b90ULL; // SHA256("main address relay")[0:8] - // Internal stuff namespace { @@ -148,8 +122,6 @@ namespace { * missing the data for the block. */ set<CBlockIndex*, CBlockIndexWorkComparator> setBlockIndexCandidates; - /** Number of nodes with fSyncStarted. */ - int nSyncStarted = 0; /** All pairs A->B, where A (or one of its ancestors) misses transactions, but B has transactions. * Pruned nodes may have entries where B is missing data. */ @@ -176,527 +148,13 @@ namespace { /** chainwork for the last block that preciousblock has been applied to. */ arith_uint256 nLastPreciousChainwork = 0; - /** - * Sources of received blocks, saved to be able to send them reject - * messages or ban them when processing happens afterwards. Protected by - * cs_main. - * Set mapBlockSource[hash].second to false if the node should not be - * punished if the block is invalid. - */ - map<uint256, std::pair<NodeId, bool>> mapBlockSource; - - /** - * Filter for transactions that were recently rejected by - * AcceptToMemoryPool. These are not rerequested until the chain tip - * changes, at which point the entire filter is reset. Protected by - * cs_main. - * - * Without this filter we'd be re-requesting txs from each of our peers, - * increasing bandwidth consumption considerably. For instance, with 100 - * peers, half of which relay a tx we don't accept, that might be a 50x - * bandwidth increase. A flooding attacker attempting to roll-over the - * filter using minimum-sized, 60byte, transactions might manage to send - * 1000/sec if we have fast peers, so we pick 120,000 to give our peers a - * two minute window to send invs to us. - * - * Decreasing the false positive rate is fairly cheap, so we pick one in a - * million to make it highly unlikely for users to have issues with this - * filter. - * - * Memory used: 1.3 MB - */ - std::unique_ptr<CRollingBloomFilter> recentRejects; - uint256 hashRecentRejectsChainTip; - - /** Blocks that are in flight, and that are in the queue to be downloaded. Protected by cs_main. */ - struct QueuedBlock { - uint256 hash; - CBlockIndex* pindex; //!< Optional. - bool fValidatedHeaders; //!< Whether this block has validated headers at the time of request. - std::unique_ptr<PartiallyDownloadedBlock> partialBlock; //!< Optional, used for CMPCTBLOCK downloads - }; - map<uint256, pair<NodeId, list<QueuedBlock>::iterator> > mapBlocksInFlight; - - /** Stack of nodes which we have set to announce using compact blocks */ - list<NodeId> lNodesAnnouncingHeaderAndIDs; - - /** Number of preferable block download peers. */ - int nPreferredDownload = 0; - /** Dirty block index entries. */ set<CBlockIndex*> setDirtyBlockIndex; /** Dirty block file entries. */ set<int> setDirtyFileInfo; - - /** Number of peers from which we're downloading blocks. */ - int nPeersWithValidatedDownloads = 0; - - /** Relay map, protected by cs_main. */ - typedef std::map<uint256, CTransactionRef> MapRelay; - MapRelay mapRelay; - /** Expiration-time ordered list of (expire time, relay map entry) pairs, protected by cs_main). */ - std::deque<std::pair<int64_t, MapRelay::iterator>> vRelayExpiration; } // anon namespace -////////////////////////////////////////////////////////////////////////////// -// -// Registration of network node signals. -// - -namespace { - -struct CBlockReject { - unsigned char chRejectCode; - string strRejectReason; - uint256 hashBlock; -}; - -/** - * Maintain validation-specific state about nodes, protected by cs_main, instead - * by CNode's own locks. This simplifies asynchronous operation, where - * processing of incoming data is done after the ProcessMessage call returns, - * and we're no longer holding the node's locks. - */ -struct CNodeState { - //! The peer's address - const CService address; - //! Whether we have a fully established connection. - bool fCurrentlyConnected; - //! Accumulated misbehaviour score for this peer. - int nMisbehavior; - //! Whether this peer should be disconnected and banned (unless whitelisted). - bool fShouldBan; - //! String name of this peer (debugging/logging purposes). - const std::string name; - //! List of asynchronously-determined block rejections to notify this peer about. - std::vector<CBlockReject> rejects; - //! The best known block we know this peer has announced. - CBlockIndex *pindexBestKnownBlock; - //! The hash of the last unknown block this peer has announced. - uint256 hashLastUnknownBlock; - //! The last full block we both have. - CBlockIndex *pindexLastCommonBlock; - //! The best header we have sent our peer. - CBlockIndex *pindexBestHeaderSent; - //! Length of current-streak of unconnecting headers announcements - int nUnconnectingHeaders; - //! Whether we've started headers synchronization with this peer. - bool fSyncStarted; - //! Since when we're stalling block download progress (in microseconds), or 0. - int64_t nStallingSince; - list<QueuedBlock> vBlocksInFlight; - //! When the first entry in vBlocksInFlight started downloading. Don't care when vBlocksInFlight is empty. - int64_t nDownloadingSince; - int nBlocksInFlight; - int nBlocksInFlightValidHeaders; - //! Whether we consider this a preferred download peer. - bool fPreferredDownload; - //! Whether this peer wants invs or headers (when possible) for block announcements. - bool fPreferHeaders; - //! Whether this peer wants invs or cmpctblocks (when possible) for block announcements. - bool fPreferHeaderAndIDs; - /** - * Whether this peer will send us cmpctblocks if we request them. - * This is not used to gate request logic, as we really only care about fSupportsDesiredCmpctVersion, - * but is used as a flag to "lock in" the version of compact blocks (fWantsCmpctWitness) we send. - */ - bool fProvidesHeaderAndIDs; - //! Whether this peer can give us witnesses - bool fHaveWitness; - //! Whether this peer wants witnesses in cmpctblocks/blocktxns - bool fWantsCmpctWitness; - /** - * If we've announced NODE_WITNESS to this peer: whether the peer sends witnesses in cmpctblocks/blocktxns, - * otherwise: whether this peer sends non-witnesses in cmpctblocks/blocktxns. - */ - bool fSupportsDesiredCmpctVersion; - - CNodeState(CAddress addrIn, std::string addrNameIn) : address(addrIn), name(addrNameIn) { - fCurrentlyConnected = false; - nMisbehavior = 0; - fShouldBan = false; - pindexBestKnownBlock = NULL; - hashLastUnknownBlock.SetNull(); - pindexLastCommonBlock = NULL; - pindexBestHeaderSent = NULL; - nUnconnectingHeaders = 0; - fSyncStarted = false; - nStallingSince = 0; - nDownloadingSince = 0; - nBlocksInFlight = 0; - nBlocksInFlightValidHeaders = 0; - fPreferredDownload = false; - fPreferHeaders = false; - fPreferHeaderAndIDs = false; - fProvidesHeaderAndIDs = false; - fHaveWitness = false; - fWantsCmpctWitness = false; - fSupportsDesiredCmpctVersion = false; - } -}; - -/** Map maintaining per-node state. Requires cs_main. */ -map<NodeId, CNodeState> mapNodeState; - -// Requires cs_main. -CNodeState *State(NodeId pnode) { - map<NodeId, CNodeState>::iterator it = mapNodeState.find(pnode); - if (it == mapNodeState.end()) - return NULL; - return &it->second; -} - -void UpdatePreferredDownload(CNode* node, CNodeState* state) -{ - nPreferredDownload -= state->fPreferredDownload; - - // Whether this node should be marked as a preferred download node. - state->fPreferredDownload = (!node->fInbound || node->fWhitelisted) && !node->fOneShot && !node->fClient; - - nPreferredDownload += state->fPreferredDownload; -} - -void PushNodeVersion(CNode *pnode, CConnman& connman, int64_t nTime) -{ - ServiceFlags nLocalNodeServices = pnode->GetLocalServices(); - uint64_t nonce = pnode->GetLocalNonce(); - int nNodeStartingHeight = pnode->GetMyStartingHeight(); - NodeId nodeid = pnode->GetId(); - CAddress addr = pnode->addr; - - CAddress addrYou = (addr.IsRoutable() && !IsProxy(addr) ? addr : CAddress(CService(), addr.nServices)); - CAddress addrMe = CAddress(CService(), nLocalNodeServices); - - connman.PushMessageWithVersion(pnode, INIT_PROTO_VERSION, NetMsgType::VERSION, PROTOCOL_VERSION, (uint64_t)nLocalNodeServices, nTime, addrYou, addrMe, - nonce, strSubVersion, nNodeStartingHeight, ::fRelayTxes); - - if (fLogIPs) - LogPrint("net", "send version message: version %d, blocks=%d, us=%s, them=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), addrYou.ToString(), nodeid); - else - LogPrint("net", "send version message: version %d, blocks=%d, us=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), nodeid); -} - -void InitializeNode(CNode *pnode, CConnman& connman) { - CAddress addr = pnode->addr; - std::string addrName = pnode->addrName; - NodeId nodeid = pnode->GetId(); - { - LOCK(cs_main); - mapNodeState.emplace_hint(mapNodeState.end(), std::piecewise_construct, std::forward_as_tuple(nodeid), std::forward_as_tuple(addr, std::move(addrName))); - } - if(!pnode->fInbound) - PushNodeVersion(pnode, connman, GetTime()); -} - -void FinalizeNode(NodeId nodeid, bool& fUpdateConnectionTime) { - fUpdateConnectionTime = false; - LOCK(cs_main); - CNodeState *state = State(nodeid); - - if (state->fSyncStarted) - nSyncStarted--; - - if (state->nMisbehavior == 0 && state->fCurrentlyConnected) { - fUpdateConnectionTime = true; - } - - BOOST_FOREACH(const QueuedBlock& entry, state->vBlocksInFlight) { - mapBlocksInFlight.erase(entry.hash); - } - EraseOrphansFor(nodeid); - nPreferredDownload -= state->fPreferredDownload; - nPeersWithValidatedDownloads -= (state->nBlocksInFlightValidHeaders != 0); - assert(nPeersWithValidatedDownloads >= 0); - - mapNodeState.erase(nodeid); - - if (mapNodeState.empty()) { - // Do a consistency check after the last peer is removed. - assert(mapBlocksInFlight.empty()); - assert(nPreferredDownload == 0); - assert(nPeersWithValidatedDownloads == 0); - } -} - -// Requires cs_main. -// Returns a bool indicating whether we requested this block. -// Also used if a block was /not/ received and timed out or started with another peer -bool MarkBlockAsReceived(const uint256& hash) { - map<uint256, pair<NodeId, list<QueuedBlock>::iterator> >::iterator itInFlight = mapBlocksInFlight.find(hash); - if (itInFlight != mapBlocksInFlight.end()) { - CNodeState *state = State(itInFlight->second.first); - state->nBlocksInFlightValidHeaders -= itInFlight->second.second->fValidatedHeaders; - if (state->nBlocksInFlightValidHeaders == 0 && itInFlight->second.second->fValidatedHeaders) { - // Last validated block on the queue was received. - nPeersWithValidatedDownloads--; - } - if (state->vBlocksInFlight.begin() == itInFlight->second.second) { - // First block on the queue was received, update the start download time for the next one - state->nDownloadingSince = std::max(state->nDownloadingSince, GetTimeMicros()); - } - state->vBlocksInFlight.erase(itInFlight->second.second); - state->nBlocksInFlight--; - state->nStallingSince = 0; - mapBlocksInFlight.erase(itInFlight); - return true; - } - return false; -} - -// Requires cs_main. -// returns false, still setting pit, if the block was already in flight from the same peer -// pit will only be valid as long as the same cs_main lock is being held -bool MarkBlockAsInFlight(NodeId nodeid, const uint256& hash, const Consensus::Params& consensusParams, CBlockIndex *pindex = NULL, list<QueuedBlock>::iterator **pit = NULL) { - CNodeState *state = State(nodeid); - assert(state != NULL); - - // Short-circuit most stuff in case its from the same node - map<uint256, pair<NodeId, list<QueuedBlock>::iterator> >::iterator itInFlight = mapBlocksInFlight.find(hash); - if (itInFlight != mapBlocksInFlight.end() && itInFlight->second.first == nodeid) { - *pit = &itInFlight->second.second; - return false; - } - - // Make sure it's not listed somewhere already. - MarkBlockAsReceived(hash); - - list<QueuedBlock>::iterator it = state->vBlocksInFlight.insert(state->vBlocksInFlight.end(), - {hash, pindex, pindex != NULL, std::unique_ptr<PartiallyDownloadedBlock>(pit ? new PartiallyDownloadedBlock(&mempool) : NULL)}); - state->nBlocksInFlight++; - state->nBlocksInFlightValidHeaders += it->fValidatedHeaders; - if (state->nBlocksInFlight == 1) { - // We're starting a block download (batch) from this peer. - state->nDownloadingSince = GetTimeMicros(); - } - if (state->nBlocksInFlightValidHeaders == 1 && pindex != NULL) { - nPeersWithValidatedDownloads++; - } - itInFlight = mapBlocksInFlight.insert(std::make_pair(hash, std::make_pair(nodeid, it))).first; - if (pit) - *pit = &itInFlight->second.second; - return true; -} - -/** Check whether the last unknown block a peer advertised is not yet known. */ -void ProcessBlockAvailability(NodeId nodeid) { - CNodeState *state = State(nodeid); - assert(state != NULL); - - if (!state->hashLastUnknownBlock.IsNull()) { - BlockMap::iterator itOld = mapBlockIndex.find(state->hashLastUnknownBlock); - if (itOld != mapBlockIndex.end() && itOld->second->nChainWork > 0) { - if (state->pindexBestKnownBlock == NULL || itOld->second->nChainWork >= state->pindexBestKnownBlock->nChainWork) - state->pindexBestKnownBlock = itOld->second; - state->hashLastUnknownBlock.SetNull(); - } - } -} - -/** Update tracking information about which blocks a peer is assumed to have. */ -void UpdateBlockAvailability(NodeId nodeid, const uint256 &hash) { - CNodeState *state = State(nodeid); - assert(state != NULL); - - ProcessBlockAvailability(nodeid); - - BlockMap::iterator it = mapBlockIndex.find(hash); - if (it != mapBlockIndex.end() && it->second->nChainWork > 0) { - // An actually better block was announced. - if (state->pindexBestKnownBlock == NULL || it->second->nChainWork >= state->pindexBestKnownBlock->nChainWork) - state->pindexBestKnownBlock = it->second; - } else { - // An unknown block was announced; just assume that the latest one is the best one. - state->hashLastUnknownBlock = hash; - } -} - -void MaybeSetPeerAsAnnouncingHeaderAndIDs(const CNodeState* nodestate, CNode* pfrom, CConnman& connman) { - if (!nodestate->fSupportsDesiredCmpctVersion) { - // Never ask from peers who can't provide witnesses. - return; - } - if (nodestate->fProvidesHeaderAndIDs) { - for (std::list<NodeId>::iterator it = lNodesAnnouncingHeaderAndIDs.begin(); it != lNodesAnnouncingHeaderAndIDs.end(); it++) { - if (*it == pfrom->GetId()) { - lNodesAnnouncingHeaderAndIDs.erase(it); - lNodesAnnouncingHeaderAndIDs.push_back(pfrom->GetId()); - return; - } - } - bool fAnnounceUsingCMPCTBLOCK = false; - uint64_t nCMPCTBLOCKVersion = (pfrom->GetLocalServices() & NODE_WITNESS) ? 2 : 1; - if (lNodesAnnouncingHeaderAndIDs.size() >= 3) { - // As per BIP152, we only get 3 of our peers to announce - // blocks using compact encodings. - connman.ForNode(lNodesAnnouncingHeaderAndIDs.front(), [&connman, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion](CNode* pnodeStop){ - connman.PushMessage(pnodeStop, NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion); - return true; - }); - lNodesAnnouncingHeaderAndIDs.pop_front(); - } - fAnnounceUsingCMPCTBLOCK = true; - connman.PushMessage(pfrom, NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion); - lNodesAnnouncingHeaderAndIDs.push_back(pfrom->GetId()); - } -} - -// Requires cs_main -bool CanDirectFetch(const Consensus::Params &consensusParams) -{ - return chainActive.Tip()->GetBlockTime() > GetAdjustedTime() - consensusParams.nPowTargetSpacing * 20; -} - -// Requires cs_main -bool PeerHasHeader(CNodeState *state, CBlockIndex *pindex) -{ - if (state->pindexBestKnownBlock && pindex == state->pindexBestKnownBlock->GetAncestor(pindex->nHeight)) - return true; - if (state->pindexBestHeaderSent && pindex == state->pindexBestHeaderSent->GetAncestor(pindex->nHeight)) - return true; - return false; -} - -/** Find the last common ancestor two blocks have. - * Both pa and pb must be non-NULL. */ -CBlockIndex* LastCommonAncestor(CBlockIndex* pa, CBlockIndex* pb) { - if (pa->nHeight > pb->nHeight) { - pa = pa->GetAncestor(pb->nHeight); - } else if (pb->nHeight > pa->nHeight) { - pb = pb->GetAncestor(pa->nHeight); - } - - while (pa != pb && pa && pb) { - pa = pa->pprev; - pb = pb->pprev; - } - - // Eventually all chain branches meet at the genesis block. - assert(pa == pb); - return pa; -} - -/** Update pindexLastCommonBlock and add not-in-flight missing successors to vBlocks, until it has - * at most count entries. */ -void FindNextBlocksToDownload(NodeId nodeid, unsigned int count, std::vector<CBlockIndex*>& vBlocks, NodeId& nodeStaller, const Consensus::Params& consensusParams) { - if (count == 0) - return; - - vBlocks.reserve(vBlocks.size() + count); - CNodeState *state = State(nodeid); - assert(state != NULL); - - // Make sure pindexBestKnownBlock is up to date, we'll need it. - ProcessBlockAvailability(nodeid); - - if (state->pindexBestKnownBlock == NULL || state->pindexBestKnownBlock->nChainWork < chainActive.Tip()->nChainWork) { - // This peer has nothing interesting. - return; - } - - if (state->pindexLastCommonBlock == NULL) { - // Bootstrap quickly by guessing a parent of our best tip is the forking point. - // Guessing wrong in either direction is not a problem. - state->pindexLastCommonBlock = chainActive[std::min(state->pindexBestKnownBlock->nHeight, chainActive.Height())]; - } - - // If the peer reorganized, our previous pindexLastCommonBlock may not be an ancestor - // of its current tip anymore. Go back enough to fix that. - state->pindexLastCommonBlock = LastCommonAncestor(state->pindexLastCommonBlock, state->pindexBestKnownBlock); - if (state->pindexLastCommonBlock == state->pindexBestKnownBlock) - return; - - std::vector<CBlockIndex*> vToFetch; - CBlockIndex *pindexWalk = state->pindexLastCommonBlock; - // Never fetch further than the best block we know the peer has, or more than BLOCK_DOWNLOAD_WINDOW + 1 beyond the last - // linked block we have in common with this peer. The +1 is so we can detect stalling, namely if we would be able to - // download that next block if the window were 1 larger. - int nWindowEnd = state->pindexLastCommonBlock->nHeight + BLOCK_DOWNLOAD_WINDOW; - int nMaxHeight = std::min<int>(state->pindexBestKnownBlock->nHeight, nWindowEnd + 1); - NodeId waitingfor = -1; - while (pindexWalk->nHeight < nMaxHeight) { - // Read up to 128 (or more, if more blocks than that are needed) successors of pindexWalk (towards - // pindexBestKnownBlock) into vToFetch. We fetch 128, because CBlockIndex::GetAncestor may be as expensive - // as iterating over ~100 CBlockIndex* entries anyway. - int nToFetch = std::min(nMaxHeight - pindexWalk->nHeight, std::max<int>(count - vBlocks.size(), 128)); - vToFetch.resize(nToFetch); - pindexWalk = state->pindexBestKnownBlock->GetAncestor(pindexWalk->nHeight + nToFetch); - vToFetch[nToFetch - 1] = pindexWalk; - for (unsigned int i = nToFetch - 1; i > 0; i--) { - vToFetch[i - 1] = vToFetch[i]->pprev; - } - - // Iterate over those blocks in vToFetch (in forward direction), adding the ones that - // are not yet downloaded and not in flight to vBlocks. In the mean time, update - // pindexLastCommonBlock as long as all ancestors are already downloaded, or if it's - // already part of our chain (and therefore don't need it even if pruned). - BOOST_FOREACH(CBlockIndex* pindex, vToFetch) { - if (!pindex->IsValid(BLOCK_VALID_TREE)) { - // We consider the chain that this peer is on invalid. - return; - } - if (!State(nodeid)->fHaveWitness && IsWitnessEnabled(pindex->pprev, consensusParams)) { - // We wouldn't download this block or its descendants from this peer. - return; - } - if (pindex->nStatus & BLOCK_HAVE_DATA || chainActive.Contains(pindex)) { - if (pindex->nChainTx) - state->pindexLastCommonBlock = pindex; - } else if (mapBlocksInFlight.count(pindex->GetBlockHash()) == 0) { - // The block is not already downloaded, and not yet in flight. - if (pindex->nHeight > nWindowEnd) { - // We reached the end of the window. - if (vBlocks.size() == 0 && waitingfor != nodeid) { - // We aren't able to fetch anything, but we would be if the download window was one larger. - nodeStaller = waitingfor; - } - return; - } - vBlocks.push_back(pindex); - if (vBlocks.size() == count) { - return; - } - } else if (waitingfor == -1) { - // This is the first already-in-flight block. - waitingfor = mapBlocksInFlight[pindex->GetBlockHash()].first; - } - } - } -} - -} // anon namespace - -bool GetNodeStateStats(NodeId nodeid, CNodeStateStats &stats) { - LOCK(cs_main); - CNodeState *state = State(nodeid); - if (state == NULL) - return false; - stats.nMisbehavior = state->nMisbehavior; - stats.nSyncHeight = state->pindexBestKnownBlock ? state->pindexBestKnownBlock->nHeight : -1; - stats.nCommonHeight = state->pindexLastCommonBlock ? state->pindexLastCommonBlock->nHeight : -1; - BOOST_FOREACH(const QueuedBlock& queue, state->vBlocksInFlight) { - if (queue.pindex) - stats.vHeightInFlight.push_back(queue.pindex->nHeight); - } - return true; -} - -void RegisterNodeSignals(CNodeSignals& nodeSignals) -{ - nodeSignals.ProcessMessages.connect(&ProcessMessages); - nodeSignals.SendMessages.connect(&SendMessages); - nodeSignals.InitializeNode.connect(&InitializeNode); - nodeSignals.FinalizeNode.connect(&FinalizeNode); -} - -void UnregisterNodeSignals(CNodeSignals& nodeSignals) -{ - nodeSignals.ProcessMessages.disconnect(&ProcessMessages); - nodeSignals.SendMessages.disconnect(&SendMessages); - nodeSignals.InitializeNode.disconnect(&InitializeNode); - nodeSignals.FinalizeNode.disconnect(&FinalizeNode); -} - CBlockIndex* FindForkInGlobalIndex(const CChain& chain, const CBlockLocator& locator) { // Find the first block the caller has in the main chain @@ -728,112 +186,6 @@ enum FlushStateMode { // See definition for documentation bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode); -////////////////////////////////////////////////////////////////////////////// -// -// mapOrphanTransactions -// - -bool AddOrphanTx(const CTransaction& tx, NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(cs_main) -{ - uint256 hash = tx.GetHash(); - if (mapOrphanTransactions.count(hash)) - return false; - - // Ignore big transactions, to avoid a - // send-big-orphans memory exhaustion attack. If a peer has a legitimate - // large transaction with a missing parent then we assume - // it will rebroadcast it later, after the parent transaction(s) - // have been mined or received. - // 100 orphans, each of which is at most 99,999 bytes big is - // at most 10 megabytes of orphans and somewhat more byprev index (in the worst case): - unsigned int sz = GetTransactionWeight(tx); - if (sz >= MAX_STANDARD_TX_WEIGHT) - { - LogPrint("mempool", "ignoring large orphan tx (size: %u, hash: %s)\n", sz, hash.ToString()); - return false; - } - - auto ret = mapOrphanTransactions.emplace(hash, COrphanTx{tx, peer, GetTime() + ORPHAN_TX_EXPIRE_TIME}); - assert(ret.second); - BOOST_FOREACH(const CTxIn& txin, tx.vin) { - mapOrphanTransactionsByPrev[txin.prevout].insert(ret.first); - } - - LogPrint("mempool", "stored orphan tx %s (mapsz %u outsz %u)\n", hash.ToString(), - mapOrphanTransactions.size(), mapOrphanTransactionsByPrev.size()); - return true; -} - -int static EraseOrphanTx(uint256 hash) EXCLUSIVE_LOCKS_REQUIRED(cs_main) -{ - map<uint256, COrphanTx>::iterator it = mapOrphanTransactions.find(hash); - if (it == mapOrphanTransactions.end()) - return 0; - BOOST_FOREACH(const CTxIn& txin, it->second.tx.vin) - { - auto itPrev = mapOrphanTransactionsByPrev.find(txin.prevout); - if (itPrev == mapOrphanTransactionsByPrev.end()) - continue; - itPrev->second.erase(it); - if (itPrev->second.empty()) - mapOrphanTransactionsByPrev.erase(itPrev); - } - mapOrphanTransactions.erase(it); - return 1; -} - -void EraseOrphansFor(NodeId peer) -{ - int nErased = 0; - map<uint256, COrphanTx>::iterator iter = mapOrphanTransactions.begin(); - while (iter != mapOrphanTransactions.end()) - { - map<uint256, COrphanTx>::iterator maybeErase = iter++; // increment to avoid iterator becoming invalid - if (maybeErase->second.fromPeer == peer) - { - nErased += EraseOrphanTx(maybeErase->second.tx.GetHash()); - } - } - if (nErased > 0) LogPrint("mempool", "Erased %d orphan tx from peer %d\n", nErased, peer); -} - - -unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans) EXCLUSIVE_LOCKS_REQUIRED(cs_main) -{ - unsigned int nEvicted = 0; - static int64_t nNextSweep; - int64_t nNow = GetTime(); - if (nNextSweep <= nNow) { - // Sweep out expired orphan pool entries: - int nErased = 0; - int64_t nMinExpTime = nNow + ORPHAN_TX_EXPIRE_TIME - ORPHAN_TX_EXPIRE_INTERVAL; - map<uint256, COrphanTx>::iterator iter = mapOrphanTransactions.begin(); - while (iter != mapOrphanTransactions.end()) - { - map<uint256, COrphanTx>::iterator maybeErase = iter++; - if (maybeErase->second.nTimeExpire <= nNow) { - nErased += EraseOrphanTx(maybeErase->second.tx.GetHash()); - } else { - nMinExpTime = std::min(maybeErase->second.nTimeExpire, nMinExpTime); - } - } - // Sweep again 5 minutes after the next entry that expires in order to batch the linear scan. - nNextSweep = nMinExpTime + ORPHAN_TX_EXPIRE_INTERVAL; - if (nErased > 0) LogPrint("mempool", "Erased %d orphan tx due to expiration\n", nErased); - } - while (mapOrphanTransactions.size() > nMaxOrphans) - { - // Evict a random orphan: - uint256 randomhash = GetRandHash(); - map<uint256, COrphanTx>::iterator it = mapOrphanTransactions.lower_bound(randomhash); - if (it == mapOrphanTransactions.end()) - it = mapOrphanTransactions.begin(); - EraseOrphanTx(it->first); - ++nEvicted; - } - return nEvicted; -} - bool IsFinalTx(const CTransaction &tx, int nBlockHeight, int64_t nBlockTime) { if (tx.nLockTime == 0) @@ -1892,26 +1244,6 @@ void CheckForkWarningConditionsOnNewFork(CBlockIndex* pindexNewForkTip) CheckForkWarningConditions(); } -// Requires cs_main. -void Misbehaving(NodeId pnode, int howmuch) -{ - if (howmuch == 0) - return; - - CNodeState *state = State(pnode); - if (state == NULL) - return; - - state->nMisbehavior += howmuch; - int banscore = GetArg("-banscore", DEFAULT_BANSCORE_THRESHOLD); - if (state->nMisbehavior >= banscore && state->nMisbehavior - howmuch < banscore) - { - LogPrintf("%s: %s peer=%d (%d -> %d) BAN THRESHOLD EXCEEDED\n", __func__, state->name, pnode, state->nMisbehavior-howmuch, state->nMisbehavior); - state->fShouldBan = true; - } else - LogPrintf("%s: %s peer=%d (%d -> %d)\n", __func__, state->name, pnode, state->nMisbehavior-howmuch, state->nMisbehavior); -} - void static InvalidChainFound(CBlockIndex* pindexNew) { if (!pindexBestInvalid || pindexNew->nChainWork > pindexBestInvalid->nChainWork) @@ -3511,15 +2843,8 @@ std::vector<unsigned char> GenerateCoinbaseCommitment(CBlock& block, const CBloc { std::vector<unsigned char> commitment; int commitpos = GetWitnessCommitmentIndex(block); - bool fHaveWitness = false; - for (size_t t = 1; t < block.vtx.size(); t++) { - if (!block.vtx[t]->wit.IsNull()) { - fHaveWitness = true; - break; - } - } std::vector<unsigned char> ret(32, 0x00); - if (fHaveWitness && IsWitnessEnabled(pindexPrev, consensusParams)) { + if (consensusParams.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout != 0) { if (commitpos == -1) { uint256 witnessroot = BlockWitnessMerkleRoot(block, NULL); CHash256().Write(witnessroot.begin(), 32).Write(&ret[0], 32).Finalize(witnessroot.begin()); @@ -3649,7 +2974,7 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, const Co return true; } -static bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex=NULL) +static bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex) { AssertLockHeld(cs_main); // Check for duplicate @@ -3698,6 +3023,21 @@ static bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state return true; } +// Exposed wrapper for AcceptBlockHeader +bool ProcessNewBlockHeaders(const std::vector<CBlockHeader>& headers, CValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex) +{ + { + LOCK(cs_main); + for (const CBlockHeader& header : headers) { + if (!AcceptBlockHeader(header, state, chainparams, ppindex)) { + return false; + } + } + } + NotifyHeaderTip(); + return true; +} + /** Store block on disk. If dbp is non-NULL, the file is known to already reside on disk */ static bool AcceptBlock(const CBlock& block, CValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex, bool fRequested, const CDiskBlockPos* dbp, bool* fNewBlock) { @@ -4302,8 +3642,6 @@ void UnloadBlockIndex() pindexBestInvalid = NULL; pindexBestHeader = NULL; mempool.clear(); - mapOrphanTransactions.clear(); - mapOrphanTransactionsByPrev.clear(); mapBlocksUnlinked.clear(); vinfoBlockFile.clear(); nLastBlockFile = 0; @@ -4709,2288 +4047,6 @@ std::string GetWarnings(const std::string& strFor) assert(!"GetWarnings(): invalid parameter"); return "error"; } - - - - - - - - -////////////////////////////////////////////////////////////////////////////// -// -// blockchain -> download logic notification -// - -PeerLogicValidation::PeerLogicValidation(CConnman* connmanIn) : connman(connmanIn) { - // Initialize global variables that cannot be constructed at startup. - recentRejects.reset(new CRollingBloomFilter(120000, 0.000001)); -} - -void PeerLogicValidation::SyncTransaction(const CTransaction& tx, const CBlockIndex* pindex, int nPosInBlock) { - if (nPosInBlock == CMainSignals::SYNC_TRANSACTION_NOT_IN_BLOCK) - return; - - LOCK(cs_main); - - std::vector<uint256> vOrphanErase; - // Which orphan pool entries must we evict? - for (size_t j = 0; j < tx.vin.size(); j++) { - auto itByPrev = mapOrphanTransactionsByPrev.find(tx.vin[j].prevout); - if (itByPrev == mapOrphanTransactionsByPrev.end()) continue; - for (auto mi = itByPrev->second.begin(); mi != itByPrev->second.end(); ++mi) { - const CTransaction& orphanTx = (*mi)->second.tx; - const uint256& orphanHash = orphanTx.GetHash(); - vOrphanErase.push_back(orphanHash); - } - } - - // Erase orphan transactions include or precluded by this block - if (vOrphanErase.size()) { - int nErased = 0; - BOOST_FOREACH(uint256 &orphanHash, vOrphanErase) { - nErased += EraseOrphanTx(orphanHash); - } - LogPrint("mempool", "Erased %d orphan tx included or conflicted by block\n", nErased); - } -} - -void PeerLogicValidation::UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) { - const int nNewHeight = pindexNew->nHeight; - connman->SetBestHeight(nNewHeight); - - if (!fInitialDownload) { - // Find the hashes of all blocks that weren't previously in the best chain. - std::vector<uint256> vHashes; - const CBlockIndex *pindexToAnnounce = pindexNew; - while (pindexToAnnounce != pindexFork) { - vHashes.push_back(pindexToAnnounce->GetBlockHash()); - pindexToAnnounce = pindexToAnnounce->pprev; - if (vHashes.size() == MAX_BLOCKS_TO_ANNOUNCE) { - // Limit announcements in case of a huge reorganization. - // Rely on the peer's synchronization mechanism in that case. - break; - } - } - // Relay inventory, but don't relay old inventory during initial block download. - connman->ForEachNode([nNewHeight, &vHashes](CNode* pnode) { - if (nNewHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 0)) { - BOOST_REVERSE_FOREACH(const uint256& hash, vHashes) { - pnode->PushBlockHash(hash); - } - } - }); - } - - nTimeBestReceived = GetTime(); -} - -void PeerLogicValidation::BlockChecked(const CBlock& block, const CValidationState& state) { - LOCK(cs_main); - - const uint256 hash(block.GetHash()); - std::map<uint256, std::pair<NodeId, bool>>::iterator it = mapBlockSource.find(hash); - - int nDoS = 0; - if (state.IsInvalid(nDoS)) { - if (it != mapBlockSource.end() && State(it->second.first)) { - assert (state.GetRejectCode() < REJECT_INTERNAL); // Blocks are never rejected with internal reject codes - CBlockReject reject = {(unsigned char)state.GetRejectCode(), state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), hash}; - State(it->second.first)->rejects.push_back(reject); - if (nDoS > 0 && it->second.second) - Misbehaving(it->second.first, nDoS); - } - } - if (it != mapBlockSource.end()) - mapBlockSource.erase(it); -} - -////////////////////////////////////////////////////////////////////////////// -// -// Messages -// - - -bool static AlreadyHave(const CInv& inv) EXCLUSIVE_LOCKS_REQUIRED(cs_main) -{ - switch (inv.type) - { - case MSG_TX: - case MSG_WITNESS_TX: - { - assert(recentRejects); - if (chainActive.Tip()->GetBlockHash() != hashRecentRejectsChainTip) - { - // If the chain tip has changed previously rejected transactions - // might be now valid, e.g. due to a nLockTime'd tx becoming valid, - // or a double-spend. Reset the rejects filter and give those - // txs a second chance. - hashRecentRejectsChainTip = chainActive.Tip()->GetBlockHash(); - recentRejects->reset(); - } - - // Use pcoinsTip->HaveCoinsInCache as a quick approximation to exclude - // requesting or processing some txs which have already been included in a block - return recentRejects->contains(inv.hash) || - mempool.exists(inv.hash) || - mapOrphanTransactions.count(inv.hash) || - pcoinsTip->HaveCoinsInCache(inv.hash); - } - case MSG_BLOCK: - case MSG_WITNESS_BLOCK: - return mapBlockIndex.count(inv.hash); - } - // Don't know what it is, just say we already got one - return true; -} - -static void RelayTransaction(const CTransaction& tx, CConnman& connman) -{ - CInv inv(MSG_TX, tx.GetHash()); - connman.ForEachNode([&inv](CNode* pnode) - { - pnode->PushInventory(inv); - }); -} - -static void RelayAddress(const CAddress& addr, bool fReachable, CConnman& connman) -{ - unsigned int nRelayNodes = fReachable ? 2 : 1; // limited relaying of addresses outside our network(s) - - // Relay to a limited number of other nodes - // Use deterministic randomness to send to the same nodes for 24 hours - // at a time so the addrKnowns of the chosen nodes prevent repeats - uint64_t hashAddr = addr.GetHash(); - const CSipHasher hasher = connman.GetDeterministicRandomizer(RANDOMIZER_ID_ADDRESS_RELAY).Write(hashAddr << 32).Write((GetTime() + hashAddr) / (24*60*60)); - FastRandomContext insecure_rand; - - std::array<std::pair<uint64_t, CNode*>,2> best{{{0, nullptr}, {0, nullptr}}}; - assert(nRelayNodes <= best.size()); - - auto sortfunc = [&best, &hasher, nRelayNodes](CNode* pnode) { - if (pnode->nVersion >= CADDR_TIME_VERSION) { - uint64_t hashKey = CSipHasher(hasher).Write(pnode->id).Finalize(); - for (unsigned int i = 0; i < nRelayNodes; i++) { - if (hashKey > best[i].first) { - std::copy(best.begin() + i, best.begin() + nRelayNodes - 1, best.begin() + i + 1); - best[i] = std::make_pair(hashKey, pnode); - break; - } - } - } - }; - - auto pushfunc = [&addr, &best, nRelayNodes, &insecure_rand] { - for (unsigned int i = 0; i < nRelayNodes && best[i].first != 0; i++) { - best[i].second->PushAddress(addr, insecure_rand); - } - }; - - connman.ForEachNodeThen(std::move(sortfunc), std::move(pushfunc)); -} - -void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParams, CConnman& connman) -{ - std::deque<CInv>::iterator it = pfrom->vRecvGetData.begin(); - unsigned int nMaxSendBufferSize = connman.GetSendBufferSize(); - - vector<CInv> vNotFound; - - LOCK(cs_main); - - while (it != pfrom->vRecvGetData.end()) { - // Don't bother if send buffer is too full to respond anyway - if (pfrom->nSendSize >= nMaxSendBufferSize) - break; - - const CInv &inv = *it; - { - boost::this_thread::interruption_point(); - it++; - - if (inv.type == MSG_BLOCK || inv.type == MSG_FILTERED_BLOCK || inv.type == MSG_CMPCT_BLOCK || inv.type == MSG_WITNESS_BLOCK) - { - bool send = false; - BlockMap::iterator mi = mapBlockIndex.find(inv.hash); - if (mi != mapBlockIndex.end()) - { - if (chainActive.Contains(mi->second)) { - send = true; - } else { - static const int nOneMonth = 30 * 24 * 60 * 60; - // To prevent fingerprinting attacks, only send blocks outside of the active - // chain if they are valid, and no more than a month older (both in time, and in - // best equivalent proof of work) than the best header chain we know about. - send = mi->second->IsValid(BLOCK_VALID_SCRIPTS) && (pindexBestHeader != NULL) && - (pindexBestHeader->GetBlockTime() - mi->second->GetBlockTime() < nOneMonth) && - (GetBlockProofEquivalentTime(*pindexBestHeader, *mi->second, *pindexBestHeader, consensusParams) < nOneMonth); - if (!send) { - LogPrintf("%s: ignoring request from peer=%i for old block that isn't in the main chain\n", __func__, pfrom->GetId()); - } - } - } - // disconnect node in case we have reached the outbound limit for serving historical blocks - // never disconnect whitelisted nodes - static const int nOneWeek = 7 * 24 * 60 * 60; // assume > 1 week = historical - if (send && connman.OutboundTargetReached(true) && ( ((pindexBestHeader != NULL) && (pindexBestHeader->GetBlockTime() - mi->second->GetBlockTime() > nOneWeek)) || inv.type == MSG_FILTERED_BLOCK) && !pfrom->fWhitelisted) - { - LogPrint("net", "historical block serving limit reached, disconnect peer=%d\n", pfrom->GetId()); - - //disconnect node - pfrom->fDisconnect = true; - send = false; - } - // Pruned nodes may have deleted the block, so check whether - // it's available before trying to send. - if (send && (mi->second->nStatus & BLOCK_HAVE_DATA)) - { - // Send block from disk - CBlock block; - if (!ReadBlockFromDisk(block, (*mi).second, consensusParams)) - assert(!"cannot load block from disk"); - if (inv.type == MSG_BLOCK) - connman.PushMessageWithFlag(pfrom, SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block); - else if (inv.type == MSG_WITNESS_BLOCK) - connman.PushMessage(pfrom, NetMsgType::BLOCK, block); - else if (inv.type == MSG_FILTERED_BLOCK) - { - bool sendMerkleBlock = false; - CMerkleBlock merkleBlock; - { - LOCK(pfrom->cs_filter); - if (pfrom->pfilter) { - sendMerkleBlock = true; - merkleBlock = CMerkleBlock(block, *pfrom->pfilter); - } - } - if (sendMerkleBlock) { - connman.PushMessage(pfrom, NetMsgType::MERKLEBLOCK, merkleBlock); - // CMerkleBlock just contains hashes, so also push any transactions in the block the client did not see - // This avoids hurting performance by pointlessly requiring a round-trip - // Note that there is currently no way for a node to request any single transactions we didn't send here - - // they must either disconnect and retry or request the full block. - // Thus, the protocol spec specified allows for us to provide duplicate txn here, - // however we MUST always provide at least what the remote peer needs - typedef std::pair<unsigned int, uint256> PairType; - BOOST_FOREACH(PairType& pair, merkleBlock.vMatchedTxn) - connman.PushMessageWithFlag(pfrom, SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::TX, *block.vtx[pair.first]); - } - // else - // no response - } - else if (inv.type == MSG_CMPCT_BLOCK) - { - // If a peer is asking for old blocks, we're almost guaranteed - // they wont have a useful mempool to match against a compact block, - // and we don't feel like constructing the object for them, so - // instead we respond with the full, non-compact block. - bool fPeerWantsWitness = State(pfrom->GetId())->fWantsCmpctWitness; - if (CanDirectFetch(consensusParams) && mi->second->nHeight >= chainActive.Height() - MAX_CMPCTBLOCK_DEPTH) { - CBlockHeaderAndShortTxIDs cmpctblock(block, fPeerWantsWitness); - connman.PushMessageWithFlag(pfrom, fPeerWantsWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::CMPCTBLOCK, cmpctblock); - } else - connman.PushMessageWithFlag(pfrom, fPeerWantsWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block); - } - - // Trigger the peer node to send a getblocks request for the next batch of inventory - if (inv.hash == pfrom->hashContinue) - { - // Bypass PushInventory, this must send even if redundant, - // and we want it right after the last block so they don't - // wait for other stuff first. - vector<CInv> vInv; - vInv.push_back(CInv(MSG_BLOCK, chainActive.Tip()->GetBlockHash())); - connman.PushMessage(pfrom, NetMsgType::INV, vInv); - pfrom->hashContinue.SetNull(); - } - } - } - else if (inv.type == MSG_TX || inv.type == MSG_WITNESS_TX) - { - // Send stream from relay memory - bool push = false; - auto mi = mapRelay.find(inv.hash); - if (mi != mapRelay.end()) { - connman.PushMessageWithFlag(pfrom, inv.type == MSG_TX ? SERIALIZE_TRANSACTION_NO_WITNESS : 0, NetMsgType::TX, *mi->second); - push = true; - } else if (pfrom->timeLastMempoolReq) { - auto txinfo = mempool.info(inv.hash); - // To protect privacy, do not answer getdata using the mempool when - // that TX couldn't have been INVed in reply to a MEMPOOL request. - if (txinfo.tx && txinfo.nTime <= pfrom->timeLastMempoolReq) { - connman.PushMessageWithFlag(pfrom, inv.type == MSG_TX ? SERIALIZE_TRANSACTION_NO_WITNESS : 0, NetMsgType::TX, *txinfo.tx); - push = true; - } - } - if (!push) { - vNotFound.push_back(inv); - } - } - - // Track requests for our stuff. - GetMainSignals().Inventory(inv.hash); - - if (inv.type == MSG_BLOCK || inv.type == MSG_FILTERED_BLOCK || inv.type == MSG_CMPCT_BLOCK || inv.type == MSG_WITNESS_BLOCK) - break; - } - } - - pfrom->vRecvGetData.erase(pfrom->vRecvGetData.begin(), it); - - if (!vNotFound.empty()) { - // Let the peer know that we didn't find what it asked for, so it doesn't - // have to wait around forever. Currently only SPV clients actually care - // about this message: it's needed when they are recursively walking the - // dependencies of relevant unconfirmed transactions. SPV clients want to - // do that because they want to know about (and store and rebroadcast and - // risk analyze) the dependencies of transactions relevant to them, without - // having to download the entire memory pool. - connman.PushMessage(pfrom, NetMsgType::NOTFOUND, vNotFound); - } -} - -uint32_t GetFetchFlags(CNode* pfrom, CBlockIndex* pprev, const Consensus::Params& chainparams) { - uint32_t nFetchFlags = 0; - if ((pfrom->GetLocalServices() & NODE_WITNESS) && State(pfrom->GetId())->fHaveWitness) { - nFetchFlags |= MSG_WITNESS_FLAG; - } - return nFetchFlags; -} - -bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, int64_t nTimeReceived, const CChainParams& chainparams, CConnman& connman) -{ - unsigned int nMaxSendBufferSize = connman.GetSendBufferSize(); - - LogPrint("net", "received: %s (%u bytes) peer=%d\n", SanitizeString(strCommand), vRecv.size(), pfrom->id); - if (mapArgs.count("-dropmessagestest") && GetRand(atoi(mapArgs["-dropmessagestest"])) == 0) - { - LogPrintf("dropmessagestest DROPPING RECV MESSAGE\n"); - return true; - } - - - if (!(pfrom->GetLocalServices() & NODE_BLOOM) && - (strCommand == NetMsgType::FILTERLOAD || - strCommand == NetMsgType::FILTERADD)) - { - if (pfrom->nVersion >= NO_BLOOM_VERSION) { - LOCK(cs_main); - Misbehaving(pfrom->GetId(), 100); - return false; - } else { - pfrom->fDisconnect = true; - return false; - } - } - - - if (strCommand == NetMsgType::VERSION) - { - // Feeler connections exist only to verify if address is online. - if (pfrom->fFeeler) { - assert(pfrom->fInbound == false); - pfrom->fDisconnect = true; - } - - // Each connection can only send one version message - if (pfrom->nVersion != 0) - { - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::REJECT, strCommand, REJECT_DUPLICATE, string("Duplicate version message")); - LOCK(cs_main); - Misbehaving(pfrom->GetId(), 1); - return false; - } - - int64_t nTime; - CAddress addrMe; - CAddress addrFrom; - uint64_t nNonce = 1; - uint64_t nServiceInt; - vRecv >> pfrom->nVersion >> nServiceInt >> nTime >> addrMe; - pfrom->nServices = ServiceFlags(nServiceInt); - if (!pfrom->fInbound) - { - connman.SetServices(pfrom->addr, pfrom->nServices); - } - if (pfrom->nServicesExpected & ~pfrom->nServices) - { - LogPrint("net", "peer=%d does not offer the expected services (%08x offered, %08x expected); disconnecting\n", pfrom->id, pfrom->nServices, pfrom->nServicesExpected); - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::REJECT, strCommand, REJECT_NONSTANDARD, - strprintf("Expected to offer services %08x", pfrom->nServicesExpected)); - pfrom->fDisconnect = true; - return false; - } - - if (pfrom->nVersion < MIN_PEER_PROTO_VERSION) - { - // disconnect from peers older than this proto version - LogPrintf("peer=%d using obsolete version %i; disconnecting\n", pfrom->id, pfrom->nVersion); - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::REJECT, strCommand, REJECT_OBSOLETE, - strprintf("Version must be %d or greater", MIN_PEER_PROTO_VERSION)); - pfrom->fDisconnect = true; - return false; - } - - if (pfrom->nVersion == 10300) - pfrom->nVersion = 300; - if (!vRecv.empty()) - vRecv >> addrFrom >> nNonce; - if (!vRecv.empty()) { - vRecv >> LIMITED_STRING(pfrom->strSubVer, MAX_SUBVERSION_LENGTH); - pfrom->cleanSubVer = SanitizeString(pfrom->strSubVer); - } - if (!vRecv.empty()) { - vRecv >> pfrom->nStartingHeight; - } - { - LOCK(pfrom->cs_filter); - if (!vRecv.empty()) - vRecv >> pfrom->fRelayTxes; // set to true after we get the first filter* message - else - pfrom->fRelayTxes = true; - } - - // Disconnect if we connected to ourself - if (pfrom->fInbound && !connman.CheckIncomingNonce(nNonce)) - { - LogPrintf("connected to self at %s, disconnecting\n", pfrom->addr.ToString()); - pfrom->fDisconnect = true; - return true; - } - - pfrom->addrLocal = addrMe; - if (pfrom->fInbound && addrMe.IsRoutable()) - { - SeenLocal(addrMe); - } - - // Be shy and don't send version until we hear - if (pfrom->fInbound) - PushNodeVersion(pfrom, connman, GetAdjustedTime()); - - pfrom->fClient = !(pfrom->nServices & NODE_NETWORK); - - if((pfrom->nServices & NODE_WITNESS)) - { - LOCK(cs_main); - State(pfrom->GetId())->fHaveWitness = true; - } - - // Potentially mark this peer as a preferred download peer. - { - LOCK(cs_main); - UpdatePreferredDownload(pfrom, State(pfrom->GetId())); - } - - // Change version - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::VERACK); - pfrom->SetSendVersion(min(pfrom->nVersion, PROTOCOL_VERSION)); - - if (!pfrom->fInbound) - { - // Advertise our address - if (fListen && !IsInitialBlockDownload()) - { - CAddress addr = GetLocalAddress(&pfrom->addr, pfrom->GetLocalServices()); - FastRandomContext insecure_rand; - if (addr.IsRoutable()) - { - LogPrint("net", "ProcessMessages: advertising address %s\n", addr.ToString()); - pfrom->PushAddress(addr, insecure_rand); - } else if (IsPeerAddrLocalGood(pfrom)) { - addr.SetIP(pfrom->addrLocal); - LogPrint("net", "ProcessMessages: advertising address %s\n", addr.ToString()); - pfrom->PushAddress(addr, insecure_rand); - } - } - - // Get recent addresses - if (pfrom->fOneShot || pfrom->nVersion >= CADDR_TIME_VERSION || connman.GetAddressCount() < 1000) - { - connman.PushMessage(pfrom, NetMsgType::GETADDR); - pfrom->fGetAddr = true; - } - connman.MarkAddressGood(pfrom->addr); - } - - pfrom->fSuccessfullyConnected = true; - - string remoteAddr; - if (fLogIPs) - remoteAddr = ", peeraddr=" + pfrom->addr.ToString(); - - LogPrintf("receive version message: %s: version %d, blocks=%d, us=%s, peer=%d%s\n", - pfrom->cleanSubVer, pfrom->nVersion, - pfrom->nStartingHeight, addrMe.ToString(), pfrom->id, - remoteAddr); - - int64_t nTimeOffset = nTime - GetTime(); - pfrom->nTimeOffset = nTimeOffset; - AddTimeData(pfrom->addr, nTimeOffset); - } - - - else if (pfrom->nVersion == 0) - { - // Must have a version message before anything else - LOCK(cs_main); - Misbehaving(pfrom->GetId(), 1); - return false; - } - - - else if (strCommand == NetMsgType::VERACK) - { - pfrom->SetRecvVersion(min(pfrom->nVersion, PROTOCOL_VERSION)); - - // Mark this node as currently connected, so we update its timestamp later. - if (pfrom->fNetworkNode) { - LOCK(cs_main); - State(pfrom->GetId())->fCurrentlyConnected = true; - } - - if (pfrom->nVersion >= SENDHEADERS_VERSION) { - // Tell our peer we prefer to receive headers rather than inv's - // We send this to non-NODE NETWORK peers as well, because even - // non-NODE NETWORK peers can announce blocks (such as pruning - // nodes) - connman.PushMessage(pfrom, NetMsgType::SENDHEADERS); - } - if (pfrom->nVersion >= SHORT_IDS_BLOCKS_VERSION) { - // Tell our peer we are willing to provide version 1 or 2 cmpctblocks - // However, we do not request new block announcements using - // cmpctblock messages. - // We send this to non-NODE NETWORK peers as well, because - // they may wish to request compact blocks from us - bool fAnnounceUsingCMPCTBLOCK = false; - uint64_t nCMPCTBLOCKVersion = 2; - if (pfrom->GetLocalServices() & NODE_WITNESS) - connman.PushMessage(pfrom, NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion); - nCMPCTBLOCKVersion = 1; - connman.PushMessage(pfrom, NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion); - } - } - - - else if (strCommand == NetMsgType::ADDR) - { - vector<CAddress> vAddr; - vRecv >> vAddr; - - // Don't want addr from older versions unless seeding - if (pfrom->nVersion < CADDR_TIME_VERSION && connman.GetAddressCount() > 1000) - return true; - if (vAddr.size() > 1000) - { - LOCK(cs_main); - Misbehaving(pfrom->GetId(), 20); - return error("message addr size() = %u", vAddr.size()); - } - - // Store the new addresses - vector<CAddress> vAddrOk; - int64_t nNow = GetAdjustedTime(); - int64_t nSince = nNow - 10 * 60; - BOOST_FOREACH(CAddress& addr, vAddr) - { - boost::this_thread::interruption_point(); - - if ((addr.nServices & REQUIRED_SERVICES) != REQUIRED_SERVICES) - continue; - - if (addr.nTime <= 100000000 || addr.nTime > nNow + 10 * 60) - addr.nTime = nNow - 5 * 24 * 60 * 60; - pfrom->AddAddressKnown(addr); - bool fReachable = IsReachable(addr); - if (addr.nTime > nSince && !pfrom->fGetAddr && vAddr.size() <= 10 && addr.IsRoutable()) - { - // Relay to a limited number of other nodes - RelayAddress(addr, fReachable, connman); - } - // Do not store addresses outside our network - if (fReachable) - vAddrOk.push_back(addr); - } - connman.AddNewAddresses(vAddrOk, pfrom->addr, 2 * 60 * 60); - if (vAddr.size() < 1000) - pfrom->fGetAddr = false; - if (pfrom->fOneShot) - pfrom->fDisconnect = true; - } - - else if (strCommand == NetMsgType::SENDHEADERS) - { - LOCK(cs_main); - State(pfrom->GetId())->fPreferHeaders = true; - } - - else if (strCommand == NetMsgType::SENDCMPCT) - { - bool fAnnounceUsingCMPCTBLOCK = false; - uint64_t nCMPCTBLOCKVersion = 0; - vRecv >> fAnnounceUsingCMPCTBLOCK >> nCMPCTBLOCKVersion; - if (nCMPCTBLOCKVersion == 1 || ((pfrom->GetLocalServices() & NODE_WITNESS) && nCMPCTBLOCKVersion == 2)) { - LOCK(cs_main); - // fProvidesHeaderAndIDs is used to "lock in" version of compact blocks we send (fWantsCmpctWitness) - if (!State(pfrom->GetId())->fProvidesHeaderAndIDs) { - State(pfrom->GetId())->fProvidesHeaderAndIDs = true; - State(pfrom->GetId())->fWantsCmpctWitness = nCMPCTBLOCKVersion == 2; - } - if (State(pfrom->GetId())->fWantsCmpctWitness == (nCMPCTBLOCKVersion == 2)) // ignore later version announces - State(pfrom->GetId())->fPreferHeaderAndIDs = fAnnounceUsingCMPCTBLOCK; - if (!State(pfrom->GetId())->fSupportsDesiredCmpctVersion) { - if (pfrom->GetLocalServices() & NODE_WITNESS) - State(pfrom->GetId())->fSupportsDesiredCmpctVersion = (nCMPCTBLOCKVersion == 2); - else - State(pfrom->GetId())->fSupportsDesiredCmpctVersion = (nCMPCTBLOCKVersion == 1); - } - } - } - - - else if (strCommand == NetMsgType::INV) - { - vector<CInv> vInv; - vRecv >> vInv; - if (vInv.size() > MAX_INV_SZ) - { - LOCK(cs_main); - Misbehaving(pfrom->GetId(), 20); - return error("message inv size() = %u", vInv.size()); - } - - bool fBlocksOnly = !fRelayTxes; - - // Allow whitelisted peers to send data other than blocks in blocks only mode if whitelistrelay is true - if (pfrom->fWhitelisted && GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY)) - fBlocksOnly = false; - - LOCK(cs_main); - - uint32_t nFetchFlags = GetFetchFlags(pfrom, chainActive.Tip(), chainparams.GetConsensus()); - - std::vector<CInv> vToFetch; - - for (unsigned int nInv = 0; nInv < vInv.size(); nInv++) - { - CInv &inv = vInv[nInv]; - - boost::this_thread::interruption_point(); - - bool fAlreadyHave = AlreadyHave(inv); - LogPrint("net", "got inv: %s %s peer=%d\n", inv.ToString(), fAlreadyHave ? "have" : "new", pfrom->id); - - if (inv.type == MSG_TX) { - inv.type |= nFetchFlags; - } - - if (inv.type == MSG_BLOCK) { - UpdateBlockAvailability(pfrom->GetId(), inv.hash); - if (!fAlreadyHave && !fImporting && !fReindex && !mapBlocksInFlight.count(inv.hash)) { - // We used to request the full block here, but since headers-announcements are now the - // primary method of announcement on the network, and since, in the case that a node - // fell back to inv we probably have a reorg which we should get the headers for first, - // we now only provide a getheaders response here. When we receive the headers, we will - // then ask for the blocks we need. - connman.PushMessage(pfrom, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), inv.hash); - LogPrint("net", "getheaders (%d) %s to peer=%d\n", pindexBestHeader->nHeight, inv.hash.ToString(), pfrom->id); - } - } - else - { - pfrom->AddInventoryKnown(inv); - if (fBlocksOnly) - LogPrint("net", "transaction (%s) inv sent in violation of protocol peer=%d\n", inv.hash.ToString(), pfrom->id); - else if (!fAlreadyHave && !fImporting && !fReindex && !IsInitialBlockDownload()) - pfrom->AskFor(inv); - } - - // Track requests for our stuff - GetMainSignals().Inventory(inv.hash); - - if (pfrom->nSendSize > (nMaxSendBufferSize * 2)) { - Misbehaving(pfrom->GetId(), 50); - return error("send buffer size() = %u", pfrom->nSendSize); - } - } - - if (!vToFetch.empty()) - connman.PushMessage(pfrom, NetMsgType::GETDATA, vToFetch); - } - - - else if (strCommand == NetMsgType::GETDATA) - { - vector<CInv> vInv; - vRecv >> vInv; - if (vInv.size() > MAX_INV_SZ) - { - LOCK(cs_main); - Misbehaving(pfrom->GetId(), 20); - return error("message getdata size() = %u", vInv.size()); - } - - if (fDebug || (vInv.size() != 1)) - LogPrint("net", "received getdata (%u invsz) peer=%d\n", vInv.size(), pfrom->id); - - if ((fDebug && vInv.size() > 0) || (vInv.size() == 1)) - LogPrint("net", "received getdata for: %s peer=%d\n", vInv[0].ToString(), pfrom->id); - - pfrom->vRecvGetData.insert(pfrom->vRecvGetData.end(), vInv.begin(), vInv.end()); - ProcessGetData(pfrom, chainparams.GetConsensus(), connman); - } - - - else if (strCommand == NetMsgType::GETBLOCKS) - { - CBlockLocator locator; - uint256 hashStop; - vRecv >> locator >> hashStop; - - LOCK(cs_main); - - // Find the last block the caller has in the main chain - CBlockIndex* pindex = FindForkInGlobalIndex(chainActive, locator); - - // Send the rest of the chain - if (pindex) - pindex = chainActive.Next(pindex); - int nLimit = 500; - LogPrint("net", "getblocks %d to %s limit %d from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), nLimit, pfrom->id); - for (; pindex; pindex = chainActive.Next(pindex)) - { - if (pindex->GetBlockHash() == hashStop) - { - LogPrint("net", " getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString()); - break; - } - // If pruning, don't inv blocks unless we have on disk and are likely to still have - // for some reasonable time window (1 hour) that block relay might require. - const int nPrunedBlocksLikelyToHave = MIN_BLOCKS_TO_KEEP - 3600 / chainparams.GetConsensus().nPowTargetSpacing; - if (fPruneMode && (!(pindex->nStatus & BLOCK_HAVE_DATA) || pindex->nHeight <= chainActive.Tip()->nHeight - nPrunedBlocksLikelyToHave)) - { - LogPrint("net", " getblocks stopping, pruned or too old block at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString()); - break; - } - pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash())); - if (--nLimit <= 0) - { - // When this block is requested, we'll send an inv that'll - // trigger the peer to getblocks the next batch of inventory. - LogPrint("net", " getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString()); - pfrom->hashContinue = pindex->GetBlockHash(); - break; - } - } - } - - - else if (strCommand == NetMsgType::GETBLOCKTXN) - { - BlockTransactionsRequest req; - vRecv >> req; - - LOCK(cs_main); - - BlockMap::iterator it = mapBlockIndex.find(req.blockhash); - if (it == mapBlockIndex.end() || !(it->second->nStatus & BLOCK_HAVE_DATA)) { - LogPrintf("Peer %d sent us a getblocktxn for a block we don't have", pfrom->id); - return true; - } - - if (it->second->nHeight < chainActive.Height() - MAX_BLOCKTXN_DEPTH) { - // If an older block is requested (should never happen in practice, - // but can happen in tests) send a block response instead of a - // blocktxn response. Sending a full block response instead of a - // small blocktxn response is preferable in the case where a peer - // might maliciously send lots of getblocktxn requests to trigger - // expensive disk reads, because it will require the peer to - // actually receive all the data read from disk over the network. - LogPrint("net", "Peer %d sent us a getblocktxn for a block > %i deep", pfrom->id, MAX_BLOCKTXN_DEPTH); - CInv inv; - inv.type = State(pfrom->GetId())->fWantsCmpctWitness ? MSG_WITNESS_BLOCK : MSG_BLOCK; - inv.hash = req.blockhash; - pfrom->vRecvGetData.push_back(inv); - ProcessGetData(pfrom, chainparams.GetConsensus(), connman); - return true; - } - - CBlock block; - assert(ReadBlockFromDisk(block, it->second, chainparams.GetConsensus())); - - BlockTransactions resp(req); - for (size_t i = 0; i < req.indexes.size(); i++) { - if (req.indexes[i] >= block.vtx.size()) { - Misbehaving(pfrom->GetId(), 100); - LogPrintf("Peer %d sent us a getblocktxn with out-of-bounds tx indices", pfrom->id); - return true; - } - resp.txn[i] = block.vtx[req.indexes[i]]; - } - connman.PushMessageWithFlag(pfrom, State(pfrom->GetId())->fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCKTXN, resp); - } - - - else if (strCommand == NetMsgType::GETHEADERS) - { - CBlockLocator locator; - uint256 hashStop; - vRecv >> locator >> hashStop; - - LOCK(cs_main); - if (IsInitialBlockDownload() && !pfrom->fWhitelisted) { - LogPrint("net", "Ignoring getheaders from peer=%d because node is in initial block download\n", pfrom->id); - return true; - } - - CNodeState *nodestate = State(pfrom->GetId()); - CBlockIndex* pindex = NULL; - if (locator.IsNull()) - { - // If locator is null, return the hashStop block - BlockMap::iterator mi = mapBlockIndex.find(hashStop); - if (mi == mapBlockIndex.end()) - return true; - pindex = (*mi).second; - } - else - { - // Find the last block the caller has in the main chain - pindex = FindForkInGlobalIndex(chainActive, locator); - if (pindex) - pindex = chainActive.Next(pindex); - } - - // we must use CBlocks, as CBlockHeaders won't include the 0x00 nTx count at the end - vector<CBlock> vHeaders; - int nLimit = MAX_HEADERS_RESULTS; - LogPrint("net", "getheaders %d to %s from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), pfrom->id); - for (; pindex; pindex = chainActive.Next(pindex)) - { - vHeaders.push_back(pindex->GetBlockHeader()); - if (--nLimit <= 0 || pindex->GetBlockHash() == hashStop) - break; - } - // pindex can be NULL either if we sent chainActive.Tip() OR - // if our peer has chainActive.Tip() (and thus we are sending an empty - // headers message). In both cases it's safe to update - // pindexBestHeaderSent to be our tip. - nodestate->pindexBestHeaderSent = pindex ? pindex : chainActive.Tip(); - connman.PushMessage(pfrom, NetMsgType::HEADERS, vHeaders); - } - - - else if (strCommand == NetMsgType::TX) - { - // Stop processing the transaction early if - // We are in blocks only mode and peer is either not whitelisted or whitelistrelay is off - if (!fRelayTxes && (!pfrom->fWhitelisted || !GetBoolArg("-whitelistrelay", DEFAULT_WHITELISTRELAY))) - { - LogPrint("net", "transaction sent in violation of protocol peer=%d\n", pfrom->id); - return true; - } - - deque<COutPoint> vWorkQueue; - vector<uint256> vEraseQueue; - CTransaction tx; - vRecv >> tx; - - CInv inv(MSG_TX, tx.GetHash()); - pfrom->AddInventoryKnown(inv); - - LOCK(cs_main); - - bool fMissingInputs = false; - CValidationState state; - - pfrom->setAskFor.erase(inv.hash); - mapAlreadyAskedFor.erase(inv.hash); - - if (!AlreadyHave(inv) && AcceptToMemoryPool(mempool, state, tx, true, &fMissingInputs)) { - mempool.check(pcoinsTip); - RelayTransaction(tx, connman); - for (unsigned int i = 0; i < tx.vout.size(); i++) { - vWorkQueue.emplace_back(inv.hash, i); - } - - pfrom->nLastTXTime = GetTime(); - - LogPrint("mempool", "AcceptToMemoryPool: peer=%d: accepted %s (poolsz %u txn, %u kB)\n", - pfrom->id, - tx.GetHash().ToString(), - mempool.size(), mempool.DynamicMemoryUsage() / 1000); - - // Recursively process any orphan transactions that depended on this one - set<NodeId> setMisbehaving; - while (!vWorkQueue.empty()) { - auto itByPrev = mapOrphanTransactionsByPrev.find(vWorkQueue.front()); - vWorkQueue.pop_front(); - if (itByPrev == mapOrphanTransactionsByPrev.end()) - continue; - for (auto mi = itByPrev->second.begin(); - mi != itByPrev->second.end(); - ++mi) - { - const CTransaction& orphanTx = (*mi)->second.tx; - const uint256& orphanHash = orphanTx.GetHash(); - NodeId fromPeer = (*mi)->second.fromPeer; - bool fMissingInputs2 = false; - // Use a dummy CValidationState so someone can't setup nodes to counter-DoS based on orphan - // resolution (that is, feeding people an invalid transaction based on LegitTxX in order to get - // anyone relaying LegitTxX banned) - CValidationState stateDummy; - - - if (setMisbehaving.count(fromPeer)) - continue; - if (AcceptToMemoryPool(mempool, stateDummy, orphanTx, true, &fMissingInputs2)) { - LogPrint("mempool", " accepted orphan tx %s\n", orphanHash.ToString()); - RelayTransaction(orphanTx, connman); - for (unsigned int i = 0; i < orphanTx.vout.size(); i++) { - vWorkQueue.emplace_back(orphanHash, i); - } - vEraseQueue.push_back(orphanHash); - } - else if (!fMissingInputs2) - { - int nDos = 0; - if (stateDummy.IsInvalid(nDos) && nDos > 0) - { - // Punish peer that gave us an invalid orphan tx - Misbehaving(fromPeer, nDos); - setMisbehaving.insert(fromPeer); - LogPrint("mempool", " invalid orphan tx %s\n", orphanHash.ToString()); - } - // Has inputs but not accepted to mempool - // Probably non-standard or insufficient fee/priority - LogPrint("mempool", " removed orphan tx %s\n", orphanHash.ToString()); - vEraseQueue.push_back(orphanHash); - if (orphanTx.wit.IsNull() && !stateDummy.CorruptionPossible()) { - // Do not use rejection cache for witness transactions or - // witness-stripped transactions, as they can have been malleated. - // See https://github.com/bitcoin/bitcoin/issues/8279 for details. - assert(recentRejects); - recentRejects->insert(orphanHash); - } - } - mempool.check(pcoinsTip); - } - } - - BOOST_FOREACH(uint256 hash, vEraseQueue) - EraseOrphanTx(hash); - } - else if (fMissingInputs) - { - bool fRejectedParents = false; // It may be the case that the orphans parents have all been rejected - BOOST_FOREACH(const CTxIn& txin, tx.vin) { - if (recentRejects->contains(txin.prevout.hash)) { - fRejectedParents = true; - break; - } - } - if (!fRejectedParents) { - BOOST_FOREACH(const CTxIn& txin, tx.vin) { - CInv _inv(MSG_TX, txin.prevout.hash); - pfrom->AddInventoryKnown(_inv); - if (!AlreadyHave(_inv)) pfrom->AskFor(_inv); - } - AddOrphanTx(tx, pfrom->GetId()); - - // DoS prevention: do not allow mapOrphanTransactions to grow unbounded - unsigned int nMaxOrphanTx = (unsigned int)std::max((int64_t)0, GetArg("-maxorphantx", DEFAULT_MAX_ORPHAN_TRANSACTIONS)); - unsigned int nEvicted = LimitOrphanTxSize(nMaxOrphanTx); - if (nEvicted > 0) - LogPrint("mempool", "mapOrphan overflow, removed %u tx\n", nEvicted); - } else { - LogPrint("mempool", "not keeping orphan with rejected parents %s\n",tx.GetHash().ToString()); - } - } else { - if (tx.wit.IsNull() && !state.CorruptionPossible()) { - // Do not use rejection cache for witness transactions or - // witness-stripped transactions, as they can have been malleated. - // See https://github.com/bitcoin/bitcoin/issues/8279 for details. - assert(recentRejects); - recentRejects->insert(tx.GetHash()); - } - - if (pfrom->fWhitelisted && GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) { - // Always relay transactions received from whitelisted peers, even - // if they were already in the mempool or rejected from it due - // to policy, allowing the node to function as a gateway for - // nodes hidden behind it. - // - // Never relay transactions that we would assign a non-zero DoS - // score for, as we expect peers to do the same with us in that - // case. - int nDoS = 0; - if (!state.IsInvalid(nDoS) || nDoS == 0) { - LogPrintf("Force relaying tx %s from whitelisted peer=%d\n", tx.GetHash().ToString(), pfrom->id); - RelayTransaction(tx, connman); - } else { - LogPrintf("Not relaying invalid transaction %s from whitelisted peer=%d (%s)\n", tx.GetHash().ToString(), pfrom->id, FormatStateMessage(state)); - } - } - } - int nDoS = 0; - if (state.IsInvalid(nDoS)) - { - LogPrint("mempoolrej", "%s from peer=%d was not accepted: %s\n", tx.GetHash().ToString(), - pfrom->id, - FormatStateMessage(state)); - if (state.GetRejectCode() < REJECT_INTERNAL) // Never send AcceptToMemoryPool's internal codes over P2P - connman.PushMessage(pfrom, NetMsgType::REJECT, strCommand, (unsigned char)state.GetRejectCode(), - state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), inv.hash); - if (nDoS > 0) { - Misbehaving(pfrom->GetId(), nDoS); - } - } - } - - - else if (strCommand == NetMsgType::CMPCTBLOCK && !fImporting && !fReindex) // Ignore blocks received while importing - { - CBlockHeaderAndShortTxIDs cmpctblock; - vRecv >> cmpctblock; - - LOCK(cs_main); - - if (mapBlockIndex.find(cmpctblock.header.hashPrevBlock) == mapBlockIndex.end()) { - // Doesn't connect (or is genesis), instead of DoSing in AcceptBlockHeader, request deeper headers - if (!IsInitialBlockDownload()) - connman.PushMessage(pfrom, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), uint256()); - return true; - } - - CBlockIndex *pindex = NULL; - CValidationState state; - if (!AcceptBlockHeader(cmpctblock.header, state, chainparams, &pindex)) { - int nDoS; - if (state.IsInvalid(nDoS)) { - if (nDoS > 0) - Misbehaving(pfrom->GetId(), nDoS); - LogPrintf("Peer %d sent us invalid header via cmpctblock\n", pfrom->id); - return true; - } - } - - // If AcceptBlockHeader returned true, it set pindex - assert(pindex); - UpdateBlockAvailability(pfrom->GetId(), pindex->GetBlockHash()); - - std::map<uint256, pair<NodeId, list<QueuedBlock>::iterator> >::iterator blockInFlightIt = mapBlocksInFlight.find(pindex->GetBlockHash()); - bool fAlreadyInFlight = blockInFlightIt != mapBlocksInFlight.end(); - - if (pindex->nStatus & BLOCK_HAVE_DATA) // Nothing to do here - return true; - - if (pindex->nChainWork <= chainActive.Tip()->nChainWork || // We know something better - pindex->nTx != 0) { // We had this block at some point, but pruned it - if (fAlreadyInFlight) { - // We requested this block for some reason, but our mempool will probably be useless - // so we just grab the block via normal getdata - std::vector<CInv> vInv(1); - vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash()); - connman.PushMessage(pfrom, NetMsgType::GETDATA, vInv); - } - return true; - } - - // If we're not close to tip yet, give up and let parallel block fetch work its magic - if (!fAlreadyInFlight && !CanDirectFetch(chainparams.GetConsensus())) - return true; - - CNodeState *nodestate = State(pfrom->GetId()); - - if (IsWitnessEnabled(pindex->pprev, chainparams.GetConsensus()) && !nodestate->fSupportsDesiredCmpctVersion) { - // Don't bother trying to process compact blocks from v1 peers - // after segwit activates. - return true; - } - - // We want to be a bit conservative just to be extra careful about DoS - // possibilities in compact block processing... - if (pindex->nHeight <= chainActive.Height() + 2) { - if ((!fAlreadyInFlight && nodestate->nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) || - (fAlreadyInFlight && blockInFlightIt->second.first == pfrom->GetId())) { - list<QueuedBlock>::iterator *queuedBlockIt = NULL; - if (!MarkBlockAsInFlight(pfrom->GetId(), pindex->GetBlockHash(), chainparams.GetConsensus(), pindex, &queuedBlockIt)) { - if (!(*queuedBlockIt)->partialBlock) - (*queuedBlockIt)->partialBlock.reset(new PartiallyDownloadedBlock(&mempool)); - else { - // The block was already in flight using compact blocks from the same peer - LogPrint("net", "Peer sent us compact block we were already syncing!\n"); - return true; - } - } - - PartiallyDownloadedBlock& partialBlock = *(*queuedBlockIt)->partialBlock; - ReadStatus status = partialBlock.InitData(cmpctblock); - if (status == READ_STATUS_INVALID) { - MarkBlockAsReceived(pindex->GetBlockHash()); // Reset in-flight state in case of whitelist - Misbehaving(pfrom->GetId(), 100); - LogPrintf("Peer %d sent us invalid compact block\n", pfrom->id); - return true; - } else if (status == READ_STATUS_FAILED) { - // Duplicate txindexes, the block is now in-flight, so just request it - std::vector<CInv> vInv(1); - vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash()); - connman.PushMessage(pfrom, NetMsgType::GETDATA, vInv); - return true; - } - - if (!fAlreadyInFlight && mapBlocksInFlight.size() == 1 && pindex->pprev->IsValid(BLOCK_VALID_CHAIN)) { - // We seem to be rather well-synced, so it appears pfrom was the first to provide us - // with this block! Let's get them to announce using compact blocks in the future. - MaybeSetPeerAsAnnouncingHeaderAndIDs(nodestate, pfrom, connman); - } - - BlockTransactionsRequest req; - for (size_t i = 0; i < cmpctblock.BlockTxCount(); i++) { - if (!partialBlock.IsTxAvailable(i)) - req.indexes.push_back(i); - } - if (req.indexes.empty()) { - // Dirty hack to jump to BLOCKTXN code (TODO: move message handling into their own functions) - BlockTransactions txn; - txn.blockhash = cmpctblock.header.GetHash(); - CDataStream blockTxnMsg(SER_NETWORK, PROTOCOL_VERSION); - blockTxnMsg << txn; - return ProcessMessage(pfrom, NetMsgType::BLOCKTXN, blockTxnMsg, nTimeReceived, chainparams, connman); - } else { - req.blockhash = pindex->GetBlockHash(); - connman.PushMessage(pfrom, NetMsgType::GETBLOCKTXN, req); - } - } - } else { - if (fAlreadyInFlight) { - // We requested this block, but its far into the future, so our - // mempool will probably be useless - request the block normally - std::vector<CInv> vInv(1); - vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash()); - connman.PushMessage(pfrom, NetMsgType::GETDATA, vInv); - return true; - } else { - // If this was an announce-cmpctblock, we want the same treatment as a header message - // Dirty hack to process as if it were just a headers message (TODO: move message handling into their own functions) - std::vector<CBlock> headers; - headers.push_back(cmpctblock.header); - CDataStream vHeadersMsg(SER_NETWORK, PROTOCOL_VERSION); - vHeadersMsg << headers; - return ProcessMessage(pfrom, NetMsgType::HEADERS, vHeadersMsg, nTimeReceived, chainparams, connman); - } - } - } - - else if (strCommand == NetMsgType::BLOCKTXN && !fImporting && !fReindex) // Ignore blocks received while importing - { - BlockTransactions resp; - vRecv >> resp; - - CBlock block; - bool fBlockRead = false; - { - LOCK(cs_main); - - map<uint256, pair<NodeId, list<QueuedBlock>::iterator> >::iterator it = mapBlocksInFlight.find(resp.blockhash); - if (it == mapBlocksInFlight.end() || !it->second.second->partialBlock || - it->second.first != pfrom->GetId()) { - LogPrint("net", "Peer %d sent us block transactions for block we weren't expecting\n", pfrom->id); - return true; - } - - PartiallyDownloadedBlock& partialBlock = *it->second.second->partialBlock; - ReadStatus status = partialBlock.FillBlock(block, resp.txn); - if (status == READ_STATUS_INVALID) { - MarkBlockAsReceived(resp.blockhash); // Reset in-flight state in case of whitelist - Misbehaving(pfrom->GetId(), 100); - LogPrintf("Peer %d sent us invalid compact block/non-matching block transactions\n", pfrom->id); - return true; - } else if (status == READ_STATUS_FAILED) { - // Might have collided, fall back to getdata now :( - std::vector<CInv> invs; - invs.push_back(CInv(MSG_BLOCK | GetFetchFlags(pfrom, chainActive.Tip(), chainparams.GetConsensus()), resp.blockhash)); - connman.PushMessage(pfrom, NetMsgType::GETDATA, invs); - } else { - // Block is either okay, or possibly we received - // READ_STATUS_CHECKBLOCK_FAILED. - // Note that CheckBlock can only fail for one of a few reasons: - // 1. bad-proof-of-work (impossible here, because we've already - // accepted the header) - // 2. merkleroot doesn't match the transactions given (already - // caught in FillBlock with READ_STATUS_FAILED, so - // impossible here) - // 3. the block is otherwise invalid (eg invalid coinbase, - // block is too big, too many legacy sigops, etc). - // So if CheckBlock failed, #3 is the only possibility. - // Under BIP 152, we don't DoS-ban unless proof of work is - // invalid (we don't require all the stateless checks to have - // been run). This is handled below, so just treat this as - // though the block was successfully read, and rely on the - // handling in ProcessNewBlock to ensure the block index is - // updated, reject messages go out, etc. - MarkBlockAsReceived(resp.blockhash); // it is now an empty pointer - fBlockRead = true; - // mapBlockSource is only used for sending reject messages and DoS scores, - // so the race between here and cs_main in ProcessNewBlock is fine. - // BIP 152 permits peers to relay compact blocks after validating - // the header only; we should not punish peers if the block turns - // out to be invalid. - mapBlockSource.emplace(resp.blockhash, std::make_pair(pfrom->GetId(), false)); - } - } // Don't hold cs_main when we call into ProcessNewBlock - if (fBlockRead) { - bool fNewBlock = false; - // Since we requested this block (it was in mapBlocksInFlight), force it to be processed, - // even if it would not be a candidate for new tip (missing previous block, chain not long enough, etc) - ProcessNewBlock(chainparams, &block, true, NULL, &fNewBlock); - if (fNewBlock) - pfrom->nLastBlockTime = GetTime(); - } - } - - - else if (strCommand == NetMsgType::HEADERS && !fImporting && !fReindex) // Ignore headers received while importing - { - std::vector<CBlockHeader> headers; - - // Bypass the normal CBlock deserialization, as we don't want to risk deserializing 2000 full blocks. - unsigned int nCount = ReadCompactSize(vRecv); - if (nCount > MAX_HEADERS_RESULTS) { - LOCK(cs_main); - Misbehaving(pfrom->GetId(), 20); - return error("headers message size = %u", nCount); - } - headers.resize(nCount); - for (unsigned int n = 0; n < nCount; n++) { - vRecv >> headers[n]; - ReadCompactSize(vRecv); // ignore tx count; assume it is 0. - } - - { - LOCK(cs_main); - - if (nCount == 0) { - // Nothing interesting. Stop asking this peers for more headers. - return true; - } - - CNodeState *nodestate = State(pfrom->GetId()); - - // If this looks like it could be a block announcement (nCount < - // MAX_BLOCKS_TO_ANNOUNCE), use special logic for handling headers that - // don't connect: - // - Send a getheaders message in response to try to connect the chain. - // - The peer can send up to MAX_UNCONNECTING_HEADERS in a row that - // don't connect before giving DoS points - // - Once a headers message is received that is valid and does connect, - // nUnconnectingHeaders gets reset back to 0. - if (mapBlockIndex.find(headers[0].hashPrevBlock) == mapBlockIndex.end() && nCount < MAX_BLOCKS_TO_ANNOUNCE) { - nodestate->nUnconnectingHeaders++; - connman.PushMessage(pfrom, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), uint256()); - LogPrint("net", "received header %s: missing prev block %s, sending getheaders (%d) to end (peer=%d, nUnconnectingHeaders=%d)\n", - headers[0].GetHash().ToString(), - headers[0].hashPrevBlock.ToString(), - pindexBestHeader->nHeight, - pfrom->id, nodestate->nUnconnectingHeaders); - // Set hashLastUnknownBlock for this peer, so that if we - // eventually get the headers - even from a different peer - - // we can use this peer to download. - UpdateBlockAvailability(pfrom->GetId(), headers.back().GetHash()); - - if (nodestate->nUnconnectingHeaders % MAX_UNCONNECTING_HEADERS == 0) { - Misbehaving(pfrom->GetId(), 20); - } - return true; - } - - CBlockIndex *pindexLast = NULL; - BOOST_FOREACH(const CBlockHeader& header, headers) { - CValidationState state; - if (pindexLast != NULL && header.hashPrevBlock != pindexLast->GetBlockHash()) { - Misbehaving(pfrom->GetId(), 20); - return error("non-continuous headers sequence"); - } - if (!AcceptBlockHeader(header, state, chainparams, &pindexLast)) { - int nDoS; - if (state.IsInvalid(nDoS)) { - if (nDoS > 0) - Misbehaving(pfrom->GetId(), nDoS); - return error("invalid header received"); - } - } - } - - if (nodestate->nUnconnectingHeaders > 0) { - LogPrint("net", "peer=%d: resetting nUnconnectingHeaders (%d -> 0)\n", pfrom->id, nodestate->nUnconnectingHeaders); - } - nodestate->nUnconnectingHeaders = 0; - - assert(pindexLast); - UpdateBlockAvailability(pfrom->GetId(), pindexLast->GetBlockHash()); - - if (nCount == MAX_HEADERS_RESULTS) { - // Headers message had its maximum size; the peer may have more headers. - // TODO: optimize: if pindexLast is an ancestor of chainActive.Tip or pindexBestHeader, continue - // from there instead. - LogPrint("net", "more getheaders (%d) to end to peer=%d (startheight:%d)\n", pindexLast->nHeight, pfrom->id, pfrom->nStartingHeight); - connman.PushMessage(pfrom, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexLast), uint256()); - } - - bool fCanDirectFetch = CanDirectFetch(chainparams.GetConsensus()); - // If this set of headers is valid and ends in a block with at least as - // much work as our tip, download as much as possible. - if (fCanDirectFetch && pindexLast->IsValid(BLOCK_VALID_TREE) && chainActive.Tip()->nChainWork <= pindexLast->nChainWork) { - vector<CBlockIndex *> vToFetch; - CBlockIndex *pindexWalk = pindexLast; - // Calculate all the blocks we'd need to switch to pindexLast, up to a limit. - while (pindexWalk && !chainActive.Contains(pindexWalk) && vToFetch.size() <= MAX_BLOCKS_IN_TRANSIT_PER_PEER) { - if (!(pindexWalk->nStatus & BLOCK_HAVE_DATA) && - !mapBlocksInFlight.count(pindexWalk->GetBlockHash()) && - (!IsWitnessEnabled(pindexWalk->pprev, chainparams.GetConsensus()) || State(pfrom->GetId())->fHaveWitness)) { - // We don't have this block, and it's not yet in flight. - vToFetch.push_back(pindexWalk); - } - pindexWalk = pindexWalk->pprev; - } - // If pindexWalk still isn't on our main chain, we're looking at a - // very large reorg at a time we think we're close to caught up to - // the main chain -- this shouldn't really happen. Bail out on the - // direct fetch and rely on parallel download instead. - if (!chainActive.Contains(pindexWalk)) { - LogPrint("net", "Large reorg, won't direct fetch to %s (%d)\n", - pindexLast->GetBlockHash().ToString(), - pindexLast->nHeight); - } else { - vector<CInv> vGetData; - // Download as much as possible, from earliest to latest. - BOOST_REVERSE_FOREACH(CBlockIndex *pindex, vToFetch) { - if (nodestate->nBlocksInFlight >= MAX_BLOCKS_IN_TRANSIT_PER_PEER) { - // Can't download any more from this peer - break; - } - uint32_t nFetchFlags = GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()); - vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash())); - MarkBlockAsInFlight(pfrom->GetId(), pindex->GetBlockHash(), chainparams.GetConsensus(), pindex); - LogPrint("net", "Requesting block %s from peer=%d\n", - pindex->GetBlockHash().ToString(), pfrom->id); - } - if (vGetData.size() > 1) { - LogPrint("net", "Downloading blocks toward %s (%d) via headers direct fetch\n", - pindexLast->GetBlockHash().ToString(), pindexLast->nHeight); - } - if (vGetData.size() > 0) { - if (nodestate->fSupportsDesiredCmpctVersion && vGetData.size() == 1 && mapBlocksInFlight.size() == 1 && pindexLast->pprev->IsValid(BLOCK_VALID_CHAIN)) { - // We seem to be rather well-synced, so it appears pfrom was the first to provide us - // with this block! Let's get them to announce using compact blocks in the future. - MaybeSetPeerAsAnnouncingHeaderAndIDs(nodestate, pfrom, connman); - // In any case, we want to download using a compact block, not a regular one - vGetData[0] = CInv(MSG_CMPCT_BLOCK, vGetData[0].hash); - } - connman.PushMessage(pfrom, NetMsgType::GETDATA, vGetData); - } - } - } - } - - NotifyHeaderTip(); - } - - else if (strCommand == NetMsgType::BLOCK && !fImporting && !fReindex) // Ignore blocks received while importing - { - CBlock block; - vRecv >> block; - - LogPrint("net", "received block %s peer=%d\n", block.GetHash().ToString(), pfrom->id); - - // Process all blocks from whitelisted peers, even if not requested, - // unless we're still syncing with the network. - // Such an unrequested block may still be processed, subject to the - // conditions in AcceptBlock(). - bool forceProcessing = pfrom->fWhitelisted && !IsInitialBlockDownload(); - const uint256 hash(block.GetHash()); - { - LOCK(cs_main); - // Also always process if we requested the block explicitly, as we may - // need it even though it is not a candidate for a new best tip. - forceProcessing |= MarkBlockAsReceived(hash); - // mapBlockSource is only used for sending reject messages and DoS scores, - // so the race between here and cs_main in ProcessNewBlock is fine. - mapBlockSource.emplace(hash, std::make_pair(pfrom->GetId(), true)); - } - bool fNewBlock = false; - ProcessNewBlock(chainparams, &block, forceProcessing, NULL, &fNewBlock); - if (fNewBlock) - pfrom->nLastBlockTime = GetTime(); - } - - - else if (strCommand == NetMsgType::GETADDR) - { - // This asymmetric behavior for inbound and outbound connections was introduced - // to prevent a fingerprinting attack: an attacker can send specific fake addresses - // to users' AddrMan and later request them by sending getaddr messages. - // Making nodes which are behind NAT and can only make outgoing connections ignore - // the getaddr message mitigates the attack. - if (!pfrom->fInbound) { - LogPrint("net", "Ignoring \"getaddr\" from outbound connection. peer=%d\n", pfrom->id); - return true; - } - - // Only send one GetAddr response per connection to reduce resource waste - // and discourage addr stamping of INV announcements. - if (pfrom->fSentAddr) { - LogPrint("net", "Ignoring repeated \"getaddr\". peer=%d\n", pfrom->id); - return true; - } - pfrom->fSentAddr = true; - - pfrom->vAddrToSend.clear(); - vector<CAddress> vAddr = connman.GetAddresses(); - FastRandomContext insecure_rand; - BOOST_FOREACH(const CAddress &addr, vAddr) - pfrom->PushAddress(addr, insecure_rand); - } - - - else if (strCommand == NetMsgType::MEMPOOL) - { - if (!(pfrom->GetLocalServices() & NODE_BLOOM) && !pfrom->fWhitelisted) - { - LogPrint("net", "mempool request with bloom filters disabled, disconnect peer=%d\n", pfrom->GetId()); - pfrom->fDisconnect = true; - return true; - } - - if (connman.OutboundTargetReached(false) && !pfrom->fWhitelisted) - { - LogPrint("net", "mempool request with bandwidth limit reached, disconnect peer=%d\n", pfrom->GetId()); - pfrom->fDisconnect = true; - return true; - } - - LOCK(pfrom->cs_inventory); - pfrom->fSendMempool = true; - } - - - else if (strCommand == NetMsgType::PING) - { - if (pfrom->nVersion > BIP0031_VERSION) - { - uint64_t nonce = 0; - vRecv >> nonce; - // Echo the message back with the nonce. This allows for two useful features: - // - // 1) A remote node can quickly check if the connection is operational - // 2) Remote nodes can measure the latency of the network thread. If this node - // is overloaded it won't respond to pings quickly and the remote node can - // avoid sending us more work, like chain download requests. - // - // The nonce stops the remote getting confused between different pings: without - // it, if the remote node sends a ping once per second and this node takes 5 - // seconds to respond to each, the 5th ping the remote sends would appear to - // return very quickly. - connman.PushMessage(pfrom, NetMsgType::PONG, nonce); - } - } - - - else if (strCommand == NetMsgType::PONG) - { - int64_t pingUsecEnd = nTimeReceived; - uint64_t nonce = 0; - size_t nAvail = vRecv.in_avail(); - bool bPingFinished = false; - std::string sProblem; - - if (nAvail >= sizeof(nonce)) { - vRecv >> nonce; - - // Only process pong message if there is an outstanding ping (old ping without nonce should never pong) - if (pfrom->nPingNonceSent != 0) { - if (nonce == pfrom->nPingNonceSent) { - // Matching pong received, this ping is no longer outstanding - bPingFinished = true; - int64_t pingUsecTime = pingUsecEnd - pfrom->nPingUsecStart; - if (pingUsecTime > 0) { - // Successful ping time measurement, replace previous - pfrom->nPingUsecTime = pingUsecTime; - pfrom->nMinPingUsecTime = std::min(pfrom->nMinPingUsecTime, pingUsecTime); - } else { - // This should never happen - sProblem = "Timing mishap"; - } - } else { - // Nonce mismatches are normal when pings are overlapping - sProblem = "Nonce mismatch"; - if (nonce == 0) { - // This is most likely a bug in another implementation somewhere; cancel this ping - bPingFinished = true; - sProblem = "Nonce zero"; - } - } - } else { - sProblem = "Unsolicited pong without ping"; - } - } else { - // This is most likely a bug in another implementation somewhere; cancel this ping - bPingFinished = true; - sProblem = "Short payload"; - } - - if (!(sProblem.empty())) { - LogPrint("net", "pong peer=%d: %s, %x expected, %x received, %u bytes\n", - pfrom->id, - sProblem, - pfrom->nPingNonceSent, - nonce, - nAvail); - } - if (bPingFinished) { - pfrom->nPingNonceSent = 0; - } - } - - - else if (strCommand == NetMsgType::FILTERLOAD) - { - CBloomFilter filter; - vRecv >> filter; - - if (!filter.IsWithinSizeConstraints()) - { - // There is no excuse for sending a too-large filter - LOCK(cs_main); - Misbehaving(pfrom->GetId(), 100); - } - else - { - LOCK(pfrom->cs_filter); - delete pfrom->pfilter; - pfrom->pfilter = new CBloomFilter(filter); - pfrom->pfilter->UpdateEmptyFull(); - pfrom->fRelayTxes = true; - } - } - - - else if (strCommand == NetMsgType::FILTERADD) - { - vector<unsigned char> vData; - vRecv >> vData; - - // Nodes must NEVER send a data item > 520 bytes (the max size for a script data object, - // and thus, the maximum size any matched object can have) in a filteradd message - bool bad = false; - if (vData.size() > MAX_SCRIPT_ELEMENT_SIZE) { - bad = true; - } else { - LOCK(pfrom->cs_filter); - if (pfrom->pfilter) { - pfrom->pfilter->insert(vData); - } else { - bad = true; - } - } - if (bad) { - LOCK(cs_main); - Misbehaving(pfrom->GetId(), 100); - } - } - - - else if (strCommand == NetMsgType::FILTERCLEAR) - { - LOCK(pfrom->cs_filter); - if (pfrom->GetLocalServices() & NODE_BLOOM) { - delete pfrom->pfilter; - pfrom->pfilter = new CBloomFilter(); - } - pfrom->fRelayTxes = true; - } - - - else if (strCommand == NetMsgType::REJECT) - { - if (fDebug) { - try { - string strMsg; unsigned char ccode; string strReason; - vRecv >> LIMITED_STRING(strMsg, CMessageHeader::COMMAND_SIZE) >> ccode >> LIMITED_STRING(strReason, MAX_REJECT_MESSAGE_LENGTH); - - ostringstream ss; - ss << strMsg << " code " << itostr(ccode) << ": " << strReason; - - if (strMsg == NetMsgType::BLOCK || strMsg == NetMsgType::TX) - { - uint256 hash; - vRecv >> hash; - ss << ": hash " << hash.ToString(); - } - LogPrint("net", "Reject %s\n", SanitizeString(ss.str())); - } catch (const std::ios_base::failure&) { - // Avoid feedback loops by preventing reject messages from triggering a new reject message. - LogPrint("net", "Unparseable reject message received\n"); - } - } - } - - else if (strCommand == NetMsgType::FEEFILTER) { - CAmount newFeeFilter = 0; - vRecv >> newFeeFilter; - if (MoneyRange(newFeeFilter)) { - { - LOCK(pfrom->cs_feeFilter); - pfrom->minFeeFilter = newFeeFilter; - } - LogPrint("net", "received: feefilter of %s from peer=%d\n", CFeeRate(newFeeFilter).ToString(), pfrom->id); - } - } - - else if (strCommand == NetMsgType::NOTFOUND) { - // We do not care about the NOTFOUND message, but logging an Unknown Command - // message would be undesirable as we transmit it ourselves. - } - - else { - // Ignore unknown commands for extensibility - LogPrint("net", "Unknown command \"%s\" from peer=%d\n", SanitizeString(strCommand), pfrom->id); - } - - - - return true; -} - -// requires LOCK(cs_vRecvMsg) -bool ProcessMessages(CNode* pfrom, CConnman& connman) -{ - const CChainParams& chainparams = Params(); - unsigned int nMaxSendBufferSize = connman.GetSendBufferSize(); - //if (fDebug) - // LogPrintf("%s(%u messages)\n", __func__, pfrom->vRecvMsg.size()); - - // - // Message format - // (4) message start - // (12) command - // (4) size - // (4) checksum - // (x) data - // - bool fOk = true; - - if (!pfrom->vRecvGetData.empty()) - ProcessGetData(pfrom, chainparams.GetConsensus(), connman); - - // this maintains the order of responses - if (!pfrom->vRecvGetData.empty()) return fOk; - - std::deque<CNetMessage>::iterator it = pfrom->vRecvMsg.begin(); - while (!pfrom->fDisconnect && it != pfrom->vRecvMsg.end()) { - // Don't bother if send buffer is too full to respond anyway - if (pfrom->nSendSize >= nMaxSendBufferSize) - break; - - // get next message - CNetMessage& msg = *it; - - //if (fDebug) - // LogPrintf("%s(message %u msgsz, %u bytes, complete:%s)\n", __func__, - // msg.hdr.nMessageSize, msg.vRecv.size(), - // msg.complete() ? "Y" : "N"); - - // end, if an incomplete message is found - if (!msg.complete()) - break; - - // at this point, any failure means we can delete the current message - it++; - - // Scan for message start - if (memcmp(msg.hdr.pchMessageStart, chainparams.MessageStart(), CMessageHeader::MESSAGE_START_SIZE) != 0) { - LogPrintf("PROCESSMESSAGE: INVALID MESSAGESTART %s peer=%d\n", SanitizeString(msg.hdr.GetCommand()), pfrom->id); - fOk = false; - break; - } - - // Read header - CMessageHeader& hdr = msg.hdr; - if (!hdr.IsValid(chainparams.MessageStart())) - { - LogPrintf("PROCESSMESSAGE: ERRORS IN HEADER %s peer=%d\n", SanitizeString(hdr.GetCommand()), pfrom->id); - continue; - } - string strCommand = hdr.GetCommand(); - - // Message size - unsigned int nMessageSize = hdr.nMessageSize; - - // Checksum - CDataStream& vRecv = msg.vRecv; - const uint256& hash = msg.GetMessageHash(); - if (memcmp(hash.begin(), hdr.pchChecksum, CMessageHeader::CHECKSUM_SIZE) != 0) - { - LogPrintf("%s(%s, %u bytes): CHECKSUM ERROR expected %s was %s\n", __func__, - SanitizeString(strCommand), nMessageSize, - HexStr(hash.begin(), hash.begin()+CMessageHeader::CHECKSUM_SIZE), - HexStr(hdr.pchChecksum, hdr.pchChecksum+CMessageHeader::CHECKSUM_SIZE)); - continue; - } - - // Process message - bool fRet = false; - try - { - fRet = ProcessMessage(pfrom, strCommand, vRecv, msg.nTime, chainparams, connman); - boost::this_thread::interruption_point(); - } - catch (const std::ios_base::failure& e) - { - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::REJECT, strCommand, REJECT_MALFORMED, string("error parsing message")); - if (strstr(e.what(), "end of data")) - { - // Allow exceptions from under-length message on vRecv - LogPrintf("%s(%s, %u bytes): Exception '%s' caught, normally caused by a message being shorter than its stated length\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); - } - else if (strstr(e.what(), "size too large")) - { - // Allow exceptions from over-long size - LogPrintf("%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); - } - else if (strstr(e.what(), "non-canonical ReadCompactSize()")) - { - // Allow exceptions from non-canonical encoding - LogPrintf("%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); - } - else - { - PrintExceptionContinue(&e, "ProcessMessages()"); - } - } - catch (const boost::thread_interrupted&) { - throw; - } - catch (const std::exception& e) { - PrintExceptionContinue(&e, "ProcessMessages()"); - } catch (...) { - PrintExceptionContinue(NULL, "ProcessMessages()"); - } - - if (!fRet) - LogPrintf("%s(%s, %u bytes) FAILED peer=%d\n", __func__, SanitizeString(strCommand), nMessageSize, pfrom->id); - - break; - } - - // In case the connection got shut down, its receive buffer was wiped - if (!pfrom->fDisconnect) - pfrom->vRecvMsg.erase(pfrom->vRecvMsg.begin(), it); - - return fOk; -} - -class CompareInvMempoolOrder -{ - CTxMemPool *mp; -public: - CompareInvMempoolOrder(CTxMemPool *_mempool) - { - mp = _mempool; - } - - bool operator()(std::set<uint256>::iterator a, std::set<uint256>::iterator b) - { - /* As std::make_heap produces a max-heap, we want the entries with the - * fewest ancestors/highest fee to sort later. */ - return mp->CompareDepthAndScore(*b, *a); - } -}; - -bool SendMessages(CNode* pto, CConnman& connman) -{ - const Consensus::Params& consensusParams = Params().GetConsensus(); - { - // Don't send anything until we get its version message - if (pto->nVersion == 0) - return true; - - // - // Message: ping - // - bool pingSend = false; - if (pto->fPingQueued) { - // RPC ping request by user - pingSend = true; - } - if (pto->nPingNonceSent == 0 && pto->nPingUsecStart + PING_INTERVAL * 1000000 < GetTimeMicros()) { - // Ping automatically sent as a latency probe & keepalive. - pingSend = true; - } - if (pingSend && !pto->fDisconnect) { - uint64_t nonce = 0; - while (nonce == 0) { - GetRandBytes((unsigned char*)&nonce, sizeof(nonce)); - } - pto->fPingQueued = false; - pto->nPingUsecStart = GetTimeMicros(); - if (pto->nVersion > BIP0031_VERSION) { - pto->nPingNonceSent = nonce; - connman.PushMessage(pto, NetMsgType::PING, nonce); - } else { - // Peer is too old to support ping command with nonce, pong will never arrive. - pto->nPingNonceSent = 0; - connman.PushMessage(pto, NetMsgType::PING); - } - } - - TRY_LOCK(cs_main, lockMain); // Acquire cs_main for IsInitialBlockDownload() and CNodeState() - if (!lockMain) - return true; - - // Address refresh broadcast - int64_t nNow = GetTimeMicros(); - if (!IsInitialBlockDownload() && pto->nNextLocalAddrSend < nNow) { - AdvertiseLocal(pto); - pto->nNextLocalAddrSend = PoissonNextSend(nNow, AVG_LOCAL_ADDRESS_BROADCAST_INTERVAL); - } - - // - // Message: addr - // - if (pto->nNextAddrSend < nNow) { - pto->nNextAddrSend = PoissonNextSend(nNow, AVG_ADDRESS_BROADCAST_INTERVAL); - vector<CAddress> vAddr; - vAddr.reserve(pto->vAddrToSend.size()); - BOOST_FOREACH(const CAddress& addr, pto->vAddrToSend) - { - if (!pto->addrKnown.contains(addr.GetKey())) - { - pto->addrKnown.insert(addr.GetKey()); - vAddr.push_back(addr); - // receiver rejects addr messages larger than 1000 - if (vAddr.size() >= 1000) - { - connman.PushMessage(pto, NetMsgType::ADDR, vAddr); - vAddr.clear(); - } - } - } - pto->vAddrToSend.clear(); - if (!vAddr.empty()) - connman.PushMessage(pto, NetMsgType::ADDR, vAddr); - // we only send the big addr message once - if (pto->vAddrToSend.capacity() > 40) - pto->vAddrToSend.shrink_to_fit(); - } - - CNodeState &state = *State(pto->GetId()); - if (state.fShouldBan) { - if (pto->fWhitelisted) - LogPrintf("Warning: not punishing whitelisted peer %s!\n", pto->addr.ToString()); - else { - pto->fDisconnect = true; - if (pto->addr.IsLocal()) - LogPrintf("Warning: not banning local peer %s!\n", pto->addr.ToString()); - else - { - connman.Ban(pto->addr, BanReasonNodeMisbehaving); - } - } - state.fShouldBan = false; - } - - BOOST_FOREACH(const CBlockReject& reject, state.rejects) - connman.PushMessage(pto, NetMsgType::REJECT, (string)NetMsgType::BLOCK, reject.chRejectCode, reject.strRejectReason, reject.hashBlock); - state.rejects.clear(); - - // Start block sync - if (pindexBestHeader == NULL) - pindexBestHeader = chainActive.Tip(); - bool fFetch = state.fPreferredDownload || (nPreferredDownload == 0 && !pto->fClient && !pto->fOneShot); // Download if this is a nice peer, or we have no nice peers and this one might do. - if (!state.fSyncStarted && !pto->fClient && !pto->fDisconnect && !fImporting && !fReindex) { - // Only actively request headers from a single peer, unless we're close to today. - if ((nSyncStarted == 0 && fFetch) || pindexBestHeader->GetBlockTime() > GetAdjustedTime() - 24 * 60 * 60) { - state.fSyncStarted = true; - nSyncStarted++; - const CBlockIndex *pindexStart = pindexBestHeader; - /* If possible, start at the block preceding the currently - best known header. This ensures that we always get a - non-empty list of headers back as long as the peer - is up-to-date. With a non-empty response, we can initialise - the peer's known best block. This wouldn't be possible - if we requested starting at pindexBestHeader and - got back an empty response. */ - if (pindexStart->pprev) - pindexStart = pindexStart->pprev; - LogPrint("net", "initial getheaders (%d) to peer=%d (startheight:%d)\n", pindexStart->nHeight, pto->id, pto->nStartingHeight); - connman.PushMessage(pto, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexStart), uint256()); - } - } - - // Resend wallet transactions that haven't gotten in a block yet - // Except during reindex, importing and IBD, when old wallet - // transactions become unconfirmed and spams other nodes. - if (!fReindex && !fImporting && !IsInitialBlockDownload()) - { - GetMainSignals().Broadcast(nTimeBestReceived, &connman); - } - - // - // Try sending block announcements via headers - // - { - // If we have less than MAX_BLOCKS_TO_ANNOUNCE in our - // list of block hashes we're relaying, and our peer wants - // headers announcements, then find the first header - // not yet known to our peer but would connect, and send. - // If no header would connect, or if we have too many - // blocks, or if the peer doesn't want headers, just - // add all to the inv queue. - LOCK(pto->cs_inventory); - vector<CBlock> vHeaders; - bool fRevertToInv = ((!state.fPreferHeaders && - (!state.fPreferHeaderAndIDs || pto->vBlockHashesToAnnounce.size() > 1)) || - pto->vBlockHashesToAnnounce.size() > MAX_BLOCKS_TO_ANNOUNCE); - CBlockIndex *pBestIndex = NULL; // last header queued for delivery - ProcessBlockAvailability(pto->id); // ensure pindexBestKnownBlock is up-to-date - - if (!fRevertToInv) { - bool fFoundStartingHeader = false; - // Try to find first header that our peer doesn't have, and - // then send all headers past that one. If we come across any - // headers that aren't on chainActive, give up. - BOOST_FOREACH(const uint256 &hash, pto->vBlockHashesToAnnounce) { - BlockMap::iterator mi = mapBlockIndex.find(hash); - assert(mi != mapBlockIndex.end()); - CBlockIndex *pindex = mi->second; - if (chainActive[pindex->nHeight] != pindex) { - // Bail out if we reorged away from this block - fRevertToInv = true; - break; - } - if (pBestIndex != NULL && pindex->pprev != pBestIndex) { - // This means that the list of blocks to announce don't - // connect to each other. - // This shouldn't really be possible to hit during - // regular operation (because reorgs should take us to - // a chain that has some block not on the prior chain, - // which should be caught by the prior check), but one - // way this could happen is by using invalidateblock / - // reconsiderblock repeatedly on the tip, causing it to - // be added multiple times to vBlockHashesToAnnounce. - // Robustly deal with this rare situation by reverting - // to an inv. - fRevertToInv = true; - break; - } - pBestIndex = pindex; - if (fFoundStartingHeader) { - // add this to the headers message - vHeaders.push_back(pindex->GetBlockHeader()); - } else if (PeerHasHeader(&state, pindex)) { - continue; // keep looking for the first new block - } else if (pindex->pprev == NULL || PeerHasHeader(&state, pindex->pprev)) { - // Peer doesn't have this header but they do have the prior one. - // Start sending headers. - fFoundStartingHeader = true; - vHeaders.push_back(pindex->GetBlockHeader()); - } else { - // Peer doesn't have this header or the prior one -- nothing will - // connect, so bail out. - fRevertToInv = true; - break; - } - } - } - if (!fRevertToInv && !vHeaders.empty()) { - if (vHeaders.size() == 1 && state.fPreferHeaderAndIDs) { - // We only send up to 1 block as header-and-ids, as otherwise - // probably means we're doing an initial-ish-sync or they're slow - LogPrint("net", "%s sending header-and-ids %s to peer %d\n", __func__, - vHeaders.front().GetHash().ToString(), pto->id); - //TODO: Shouldn't need to reload block from disk, but requires refactor - CBlock block; - assert(ReadBlockFromDisk(block, pBestIndex, consensusParams)); - CBlockHeaderAndShortTxIDs cmpctblock(block, state.fWantsCmpctWitness); - connman.PushMessageWithFlag(pto, state.fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::CMPCTBLOCK, cmpctblock); - state.pindexBestHeaderSent = pBestIndex; - } else if (state.fPreferHeaders) { - if (vHeaders.size() > 1) { - LogPrint("net", "%s: %u headers, range (%s, %s), to peer=%d\n", __func__, - vHeaders.size(), - vHeaders.front().GetHash().ToString(), - vHeaders.back().GetHash().ToString(), pto->id); - } else { - LogPrint("net", "%s: sending header %s to peer=%d\n", __func__, - vHeaders.front().GetHash().ToString(), pto->id); - } - connman.PushMessage(pto, NetMsgType::HEADERS, vHeaders); - state.pindexBestHeaderSent = pBestIndex; - } else - fRevertToInv = true; - } - if (fRevertToInv) { - // If falling back to using an inv, just try to inv the tip. - // The last entry in vBlockHashesToAnnounce was our tip at some point - // in the past. - if (!pto->vBlockHashesToAnnounce.empty()) { - const uint256 &hashToAnnounce = pto->vBlockHashesToAnnounce.back(); - BlockMap::iterator mi = mapBlockIndex.find(hashToAnnounce); - assert(mi != mapBlockIndex.end()); - CBlockIndex *pindex = mi->second; - - // Warn if we're announcing a block that is not on the main chain. - // This should be very rare and could be optimized out. - // Just log for now. - if (chainActive[pindex->nHeight] != pindex) { - LogPrint("net", "Announcing block %s not on main chain (tip=%s)\n", - hashToAnnounce.ToString(), chainActive.Tip()->GetBlockHash().ToString()); - } - - // If the peer's chain has this block, don't inv it back. - if (!PeerHasHeader(&state, pindex)) { - pto->PushInventory(CInv(MSG_BLOCK, hashToAnnounce)); - LogPrint("net", "%s: sending inv peer=%d hash=%s\n", __func__, - pto->id, hashToAnnounce.ToString()); - } - } - } - pto->vBlockHashesToAnnounce.clear(); - } - - // - // Message: inventory - // - vector<CInv> vInv; - { - LOCK(pto->cs_inventory); - vInv.reserve(std::max<size_t>(pto->vInventoryBlockToSend.size(), INVENTORY_BROADCAST_MAX)); - - // Add blocks - BOOST_FOREACH(const uint256& hash, pto->vInventoryBlockToSend) { - vInv.push_back(CInv(MSG_BLOCK, hash)); - if (vInv.size() == MAX_INV_SZ) { - connman.PushMessage(pto, NetMsgType::INV, vInv); - vInv.clear(); - } - } - pto->vInventoryBlockToSend.clear(); - - // Check whether periodic sends should happen - bool fSendTrickle = pto->fWhitelisted; - if (pto->nNextInvSend < nNow) { - fSendTrickle = true; - // Use half the delay for outbound peers, as there is less privacy concern for them. - pto->nNextInvSend = PoissonNextSend(nNow, INVENTORY_BROADCAST_INTERVAL >> !pto->fInbound); - } - - // Time to send but the peer has requested we not relay transactions. - if (fSendTrickle) { - LOCK(pto->cs_filter); - if (!pto->fRelayTxes) pto->setInventoryTxToSend.clear(); - } - - // Respond to BIP35 mempool requests - if (fSendTrickle && pto->fSendMempool) { - auto vtxinfo = mempool.infoAll(); - pto->fSendMempool = false; - CAmount filterrate = 0; - { - LOCK(pto->cs_feeFilter); - filterrate = pto->minFeeFilter; - } - - LOCK(pto->cs_filter); - - for (const auto& txinfo : vtxinfo) { - const uint256& hash = txinfo.tx->GetHash(); - CInv inv(MSG_TX, hash); - pto->setInventoryTxToSend.erase(hash); - if (filterrate) { - if (txinfo.feeRate.GetFeePerK() < filterrate) - continue; - } - if (pto->pfilter) { - if (!pto->pfilter->IsRelevantAndUpdate(*txinfo.tx)) continue; - } - pto->filterInventoryKnown.insert(hash); - vInv.push_back(inv); - if (vInv.size() == MAX_INV_SZ) { - connman.PushMessage(pto, NetMsgType::INV, vInv); - vInv.clear(); - } - } - pto->timeLastMempoolReq = GetTime(); - } - - // Determine transactions to relay - if (fSendTrickle) { - // Produce a vector with all candidates for sending - vector<std::set<uint256>::iterator> vInvTx; - vInvTx.reserve(pto->setInventoryTxToSend.size()); - for (std::set<uint256>::iterator it = pto->setInventoryTxToSend.begin(); it != pto->setInventoryTxToSend.end(); it++) { - vInvTx.push_back(it); - } - CAmount filterrate = 0; - { - LOCK(pto->cs_feeFilter); - filterrate = pto->minFeeFilter; - } - // Topologically and fee-rate sort the inventory we send for privacy and priority reasons. - // A heap is used so that not all items need sorting if only a few are being sent. - CompareInvMempoolOrder compareInvMempoolOrder(&mempool); - std::make_heap(vInvTx.begin(), vInvTx.end(), compareInvMempoolOrder); - // No reason to drain out at many times the network's capacity, - // especially since we have many peers and some will draw much shorter delays. - unsigned int nRelayedTransactions = 0; - LOCK(pto->cs_filter); - while (!vInvTx.empty() && nRelayedTransactions < INVENTORY_BROADCAST_MAX) { - // Fetch the top element from the heap - std::pop_heap(vInvTx.begin(), vInvTx.end(), compareInvMempoolOrder); - std::set<uint256>::iterator it = vInvTx.back(); - vInvTx.pop_back(); - uint256 hash = *it; - // Remove it from the to-be-sent set - pto->setInventoryTxToSend.erase(it); - // Check if not in the filter already - if (pto->filterInventoryKnown.contains(hash)) { - continue; - } - // Not in the mempool anymore? don't bother sending it. - auto txinfo = mempool.info(hash); - if (!txinfo.tx) { - continue; - } - if (filterrate && txinfo.feeRate.GetFeePerK() < filterrate) { - continue; - } - if (pto->pfilter && !pto->pfilter->IsRelevantAndUpdate(*txinfo.tx)) continue; - // Send - vInv.push_back(CInv(MSG_TX, hash)); - nRelayedTransactions++; - { - // Expire old relay messages - while (!vRelayExpiration.empty() && vRelayExpiration.front().first < nNow) - { - mapRelay.erase(vRelayExpiration.front().second); - vRelayExpiration.pop_front(); - } - - auto ret = mapRelay.insert(std::make_pair(hash, std::move(txinfo.tx))); - if (ret.second) { - vRelayExpiration.push_back(std::make_pair(nNow + 15 * 60 * 1000000, ret.first)); - } - } - if (vInv.size() == MAX_INV_SZ) { - connman.PushMessage(pto, NetMsgType::INV, vInv); - vInv.clear(); - } - pto->filterInventoryKnown.insert(hash); - } - } - } - if (!vInv.empty()) - connman.PushMessage(pto, NetMsgType::INV, vInv); - - // Detect whether we're stalling - nNow = GetTimeMicros(); - if (!pto->fDisconnect && state.nStallingSince && state.nStallingSince < nNow - 1000000 * BLOCK_STALLING_TIMEOUT) { - // Stalling only triggers when the block download window cannot move. During normal steady state, - // the download window should be much larger than the to-be-downloaded set of blocks, so disconnection - // should only happen during initial block download. - LogPrintf("Peer=%d is stalling block download, disconnecting\n", pto->id); - pto->fDisconnect = true; - } - // In case there is a block that has been in flight from this peer for 2 + 0.5 * N times the block interval - // (with N the number of peers from which we're downloading validated blocks), disconnect due to timeout. - // We compensate for other peers to prevent killing off peers due to our own downstream link - // being saturated. We only count validated in-flight blocks so peers can't advertise non-existing block hashes - // to unreasonably increase our timeout. - if (!pto->fDisconnect && state.vBlocksInFlight.size() > 0) { - QueuedBlock &queuedBlock = state.vBlocksInFlight.front(); - int nOtherPeersWithValidatedDownloads = nPeersWithValidatedDownloads - (state.nBlocksInFlightValidHeaders > 0); - if (nNow > state.nDownloadingSince + consensusParams.nPowTargetSpacing * (BLOCK_DOWNLOAD_TIMEOUT_BASE + BLOCK_DOWNLOAD_TIMEOUT_PER_PEER * nOtherPeersWithValidatedDownloads)) { - LogPrintf("Timeout downloading block %s from peer=%d, disconnecting\n", queuedBlock.hash.ToString(), pto->id); - pto->fDisconnect = true; - } - } - - // - // Message: getdata (blocks) - // - vector<CInv> vGetData; - if (!pto->fDisconnect && !pto->fClient && (fFetch || !IsInitialBlockDownload()) && state.nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) { - vector<CBlockIndex*> vToDownload; - NodeId staller = -1; - FindNextBlocksToDownload(pto->GetId(), MAX_BLOCKS_IN_TRANSIT_PER_PEER - state.nBlocksInFlight, vToDownload, staller, consensusParams); - BOOST_FOREACH(CBlockIndex *pindex, vToDownload) { - uint32_t nFetchFlags = GetFetchFlags(pto, pindex->pprev, consensusParams); - vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash())); - MarkBlockAsInFlight(pto->GetId(), pindex->GetBlockHash(), consensusParams, pindex); - LogPrint("net", "Requesting block %s (%d) peer=%d\n", pindex->GetBlockHash().ToString(), - pindex->nHeight, pto->id); - } - if (state.nBlocksInFlight == 0 && staller != -1) { - if (State(staller)->nStallingSince == 0) { - State(staller)->nStallingSince = nNow; - LogPrint("net", "Stall started peer=%d\n", staller); - } - } - } - - // - // Message: getdata (non-blocks) - // - while (!pto->fDisconnect && !pto->mapAskFor.empty() && (*pto->mapAskFor.begin()).first <= nNow) - { - const CInv& inv = (*pto->mapAskFor.begin()).second; - if (!AlreadyHave(inv)) - { - if (fDebug) - LogPrint("net", "Requesting %s peer=%d\n", inv.ToString(), pto->id); - vGetData.push_back(inv); - if (vGetData.size() >= 1000) - { - connman.PushMessage(pto, NetMsgType::GETDATA, vGetData); - vGetData.clear(); - } - } else { - //If we're not going to ask, don't expect a response. - pto->setAskFor.erase(inv.hash); - } - pto->mapAskFor.erase(pto->mapAskFor.begin()); - } - if (!vGetData.empty()) - connman.PushMessage(pto, NetMsgType::GETDATA, vGetData); - - // - // Message: feefilter - // - // We don't want white listed peers to filter txs to us if we have -whitelistforcerelay - if (!pto->fDisconnect && pto->nVersion >= FEEFILTER_VERSION && GetBoolArg("-feefilter", DEFAULT_FEEFILTER) && - !(pto->fWhitelisted && GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY))) { - CAmount currentFilter = mempool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFeePerK(); - int64_t timeNow = GetTimeMicros(); - if (timeNow > pto->nextSendTimeFeeFilter) { - CAmount filterToSend = filterRounder.round(currentFilter); - if (filterToSend != pto->lastSentFeeFilter) { - connman.PushMessage(pto, NetMsgType::FEEFILTER, filterToSend); - pto->lastSentFeeFilter = filterToSend; - } - pto->nextSendTimeFeeFilter = PoissonNextSend(timeNow, AVG_FEEFILTER_BROADCAST_INTERVAL); - } - // If the fee filter has changed substantially and it's still more than MAX_FEEFILTER_CHANGE_DELAY - // until scheduled broadcast, then move the broadcast to within MAX_FEEFILTER_CHANGE_DELAY. - else if (timeNow + MAX_FEEFILTER_CHANGE_DELAY * 1000000 < pto->nextSendTimeFeeFilter && - (currentFilter < 3 * pto->lastSentFeeFilter / 4 || currentFilter > 4 * pto->lastSentFeeFilter / 3)) { - pto->nextSendTimeFeeFilter = timeNow + GetRandInt(MAX_FEEFILTER_CHANGE_DELAY) * 1000000; - } - } - } - return true; -} - std::string CBlockFileInfo::ToString() const { return strprintf("CBlockFileInfo(blocks=%u, size=%u, heights=%u...%u, time=%s...%s)", nBlocks, nSize, nHeightFirst, nHeightLast, DateTimeStrFormat("%Y-%m-%d", nTimeFirst), DateTimeStrFormat("%Y-%m-%d", nTimeLast)); } @@ -7130,9 +4186,5 @@ public: for (; it1 != mapBlockIndex.end(); it1++) delete (*it1).second; mapBlockIndex.clear(); - - // orphan transactions - mapOrphanTransactions.clear(); - mapOrphanTransactionsByPrev.clear(); } } instance_of_cmaincleanup; diff --git a/src/main.h b/src/validation.h index 43c62f6de..a798cf370 100644 --- a/src/main.h +++ b/src/validation.h @@ -3,8 +3,8 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. -#ifndef BITCOIN_MAIN_H -#define BITCOIN_MAIN_H +#ifndef BITCOIN_VALIDATION_H +#define BITCOIN_VALIDATION_H #if defined(HAVE_CONFIG_H) #include "config/bitcoin-config.h" @@ -13,10 +13,9 @@ #include "amount.h" #include "chain.h" #include "coins.h" -#include "net.h" +#include "protocol.h" // For CMessageHeader::MessageStartChars #include "script/script_error.h" #include "sync.h" -#include "validationinterface.h" #include "versionbits.h" #include <algorithm> @@ -28,7 +27,10 @@ #include <utility> #include <vector> +#include <atomic> + #include <boost/unordered_map.hpp> +#include <boost/filesystem/path.hpp> class CBlockIndex; class CBlockTreeDB; @@ -165,7 +167,7 @@ extern uint64_t nLastBlockWeight; extern const std::string strMessageMagic; extern CWaitableCriticalSection csBestBlock; extern CConditionVariable cvBlockChange; -extern bool fImporting; +extern std::atomic_bool fImporting; extern bool fReindex; extern int nScriptCheckThreads; extern bool fTxIndex; @@ -223,6 +225,8 @@ static const uint64_t MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024; * Note that we guarantee that either the proof-of-work is valid on pblock, or * (and possibly also) BlockChecked will have been called. * + * Call without cs_main held. + * * @param[in] pblock The block we want to process. * @param[in] fForceProcessing Process this block even if unrequested; used for non-network block sources and whitelisted peers. * @param[out] dbp The already known disk position of pblock, or NULL if not yet stored. @@ -230,6 +234,19 @@ static const uint64_t MIN_DISK_SPACE_FOR_BLOCK_FILES = 550 * 1024 * 1024; * @return True if state.IsValid() */ bool ProcessNewBlock(const CChainParams& chainparams, const CBlock* pblock, bool fForceProcessing, const CDiskBlockPos* dbp, bool* fNewBlock); + +/** + * Process incoming block headers. + * + * Call without cs_main held. + * + * @param[in] block The block headers themselves + * @param[out] state This may be set to an Error state if any error occurred processing them + * @param[in] chainparams The params for the chain we want to connect to + * @param[out] ppindex If set, the pointer will be set to point to the last new block index object for the given headers + */ +bool ProcessNewBlockHeaders(const std::vector<CBlockHeader>& block, CValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex=NULL); + /** Check whether enough disk space is available for an incoming block */ bool CheckDiskSpace(uint64_t nAdditionalBytes = 0); /** Open a block file (blk?????.dat) */ @@ -545,46 +562,4 @@ void DumpMempool(); /** Load the mempool from disk. */ bool LoadMempool(); -// The following things handle network-processing logic -// (and should be moved to a separate file) - -/** Register with a network node to receive its signals */ -void RegisterNodeSignals(CNodeSignals& nodeSignals); -/** Unregister a network node */ -void UnregisterNodeSignals(CNodeSignals& nodeSignals); - -class PeerLogicValidation : public CValidationInterface { -private: - CConnman* connman; - -public: - PeerLogicValidation(CConnman* connmanIn); - - virtual void SyncTransaction(const CTransaction& tx, const CBlockIndex* pindex, int nPosInBlock); - virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload); - virtual void BlockChecked(const CBlock& block, const CValidationState& state); -}; - -struct CNodeStateStats { - int nMisbehavior; - int nSyncHeight; - int nCommonHeight; - std::vector<int> vHeightInFlight; -}; - -/** Get statistics from node state */ -bool GetNodeStateStats(NodeId nodeid, CNodeStateStats &stats); -/** Increase a node's misbehavior score. */ -void Misbehaving(NodeId nodeid, int howmuch); - -/** Process protocol messages received from a given node */ -bool ProcessMessages(CNode* pfrom, CConnman& connman); -/** - * Send queued protocol messages to be sent to a give node. - * - * @param[in] pto The node which we are sending messages to. - * @param[in] connman The connection manager for that node. - */ -bool SendMessages(CNode* pto, CConnman& connman); - -#endif // BITCOIN_MAIN_H +#endif // BITCOIN_VALIDATION_H diff --git a/src/wallet/rpcdump.cpp b/src/wallet/rpcdump.cpp index bb5337c4a..671b391c7 100644 --- a/src/wallet/rpcdump.cpp +++ b/src/wallet/rpcdump.cpp @@ -6,7 +6,7 @@ #include "chain.h" #include "rpc/server.h" #include "init.h" -#include "main.h" +#include "validation.h" #include "script/script.h" #include "script/standard.h" #include "sync.h" diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp index 5a22e0278..d0c13c41d 100644 --- a/src/wallet/rpcwallet.cpp +++ b/src/wallet/rpcwallet.cpp @@ -9,7 +9,7 @@ #include "consensus/validation.h" #include "core_io.h" #include "init.h" -#include "main.h" +#include "validation.h" #include "net.h" #include "policy/rbf.h" #include "rpc/server.h" diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 39c4fc3f1..102c191d6 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -13,7 +13,7 @@ #include "consensus/validation.h" #include "key.h" #include "keystore.h" -#include "main.h" +#include "validation.h" #include "net.h" #include "policy/policy.h" #include "primitives/block.h" diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp index 43fd6a20a..0395e4a07 100644 --- a/src/wallet/walletdb.cpp +++ b/src/wallet/walletdb.cpp @@ -7,7 +7,7 @@ #include "base58.h" #include "consensus/validation.h" -#include "main.h" // For CheckTransaction +#include "validation.h" // For CheckTransaction #include "protocol.h" #include "serialize.h" #include "sync.h" diff --git a/src/zmq/zmqnotificationinterface.cpp b/src/zmq/zmqnotificationinterface.cpp index a0196fe18..a7e20a835 100644 --- a/src/zmq/zmqnotificationinterface.cpp +++ b/src/zmq/zmqnotificationinterface.cpp @@ -6,7 +6,7 @@ #include "zmqpublishnotifier.h" #include "version.h" -#include "main.h" +#include "validation.h" #include "streams.h" #include "util.h" diff --git a/src/zmq/zmqpublishnotifier.cpp b/src/zmq/zmqpublishnotifier.cpp index b6c907980..99d42ab52 100644 --- a/src/zmq/zmqpublishnotifier.cpp +++ b/src/zmq/zmqpublishnotifier.cpp @@ -3,8 +3,9 @@ // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "chainparams.h" +#include "streams.h" #include "zmqpublishnotifier.h" -#include "main.h" +#include "validation.h" #include "util.h" static std::multimap<std::string, CZMQAbstractPublishNotifier*> mapPublishNotifiers; 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