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Diffstat (limited to 'src/init.cpp')
| -rw-r--r-- | src/init.cpp | 1441 |
1 files changed, 1441 insertions, 0 deletions
diff --git a/src/init.cpp b/src/init.cpp new file mode 100644 index 000000000..3a260d16d --- /dev/null +++ b/src/init.cpp @@ -0,0 +1,1441 @@ +// 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. + +#if defined(HAVE_CONFIG_H) +#include "config/bitcoin-config.h" +#endif + +#include "init.h" + +#include "addrman.h" +#include "amount.h" +#include "chain.h" +#include "chainparams.h" +#include "checkpoints.h" +#include "compat/sanity.h" +#include "consensus/validation.h" +#include "httpserver.h" +#include "httprpc.h" +#include "key.h" +#include "main.h" +#include "miner.h" +#include "net.h" +#include "policy/policy.h" +#include "rpc/server.h" +#include "rpc/register.h" +#include "script/standard.h" +#include "script/sigcache.h" +#include "scheduler.h" +#include "timedata.h" +#include "txdb.h" +#include "txmempool.h" +#include "torcontrol.h" +#include "ui_interface.h" +#include "util.h" +#include "utilmoneystr.h" +#include "validationinterface.h" +#ifdef ENABLE_WALLET +#include "wallet/wallet.h" +#endif +#include <stdint.h> +#include <stdio.h> + +#ifndef WIN32 +#include <signal.h> +#endif + +#include <boost/algorithm/string/classification.hpp> +#include <boost/algorithm/string/predicate.hpp> +#include <boost/algorithm/string/replace.hpp> +#include <boost/algorithm/string/split.hpp> +#include <boost/bind.hpp> +#include <boost/filesystem.hpp> +#include <boost/function.hpp> +#include <boost/interprocess/sync/file_lock.hpp> +#include <boost/thread.hpp> +#include <openssl/crypto.h> + +#if ENABLE_ZMQ +#include "zmq/zmqnotificationinterface.h" +#endif + +using namespace std; + +bool fFeeEstimatesInitialized = false; +static const bool DEFAULT_PROXYRANDOMIZE = true; +static const bool DEFAULT_REST_ENABLE = false; +static const bool DEFAULT_DISABLE_SAFEMODE = false; +static const bool DEFAULT_STOPAFTERBLOCKIMPORT = false; + + +#if ENABLE_ZMQ +static CZMQNotificationInterface* pzmqNotificationInterface = NULL; +#endif + +#ifdef WIN32 +// Win32 LevelDB doesn't use filedescriptors, and the ones used for +// accessing block files don't count towards the fd_set size limit +// anyway. +#define MIN_CORE_FILEDESCRIPTORS 0 +#else +#define MIN_CORE_FILEDESCRIPTORS 150 +#endif + +/** Used to pass flags to the Bind() function */ +enum BindFlags { + BF_NONE = 0, + BF_EXPLICIT = (1U << 0), + BF_REPORT_ERROR = (1U << 1), + BF_WHITELIST = (1U << 2), +}; + +static const char* FEE_ESTIMATES_FILENAME="fee_estimates.dat"; + +////////////////////////////////////////////////////////////////////////////// +// +// Shutdown +// + +// +// Thread management and startup/shutdown: +// +// The network-processing threads are all part of a thread group +// created by AppInit() or the Qt main() function. +// +// A clean exit happens when StartShutdown() or the SIGTERM +// signal handler sets fRequestShutdown, which triggers +// the DetectShutdownThread(), which interrupts the main thread group. +// DetectShutdownThread() then exits, which causes AppInit() to +// continue (it .joins the shutdown thread). +// Shutdown() is then +// called to clean up database connections, and stop other +// threads that should only be stopped after the main network-processing +// threads have exited. +// +// Note that if running -daemon the parent process returns from AppInit2 +// before adding any threads to the threadGroup, so .join_all() returns +// immediately and the parent exits from main(). +// +// Shutdown for Qt is very similar, only it uses a QTimer to detect +// fRequestShutdown getting set, and then does the normal Qt +// shutdown thing. +// + +std::atomic<bool> fRequestShutdown(false); + +void StartShutdown() +{ + fRequestShutdown = true; +} +bool ShutdownRequested() +{ + return fRequestShutdown; +} + +/** + * This is a minimally invasive approach to shutdown on LevelDB read errors from the + * chainstate, while keeping user interface out of the common library, which is shared + * between bitcoind, and bitcoin-qt and non-server tools. +*/ +class CCoinsViewErrorCatcher : public CCoinsViewBacked +{ +public: + CCoinsViewErrorCatcher(CCoinsView* view) : CCoinsViewBacked(view) {} + bool GetCoins(const uint256 &txid, CCoins &coins) const { + try { + return CCoinsViewBacked::GetCoins(txid, coins); + } catch(const std::runtime_error& e) { + uiInterface.ThreadSafeMessageBox(_("Error reading from database, shutting down."), "", CClientUIInterface::MSG_ERROR); + LogPrintf("Error reading from database: %s\n", e.what()); + // Starting the shutdown sequence and returning false to the caller would be + // interpreted as 'entry not found' (as opposed to unable to read data), and + // could lead to invalid interpretation. Just exit immediately, as we can't + // continue anyway, and all writes should be atomic. + abort(); + } + } + // Writes do not need similar protection, as failure to write is handled by the caller. +}; + +static CCoinsViewDB *pcoinsdbview = NULL; +static CCoinsViewErrorCatcher *pcoinscatcher = NULL; +static boost::scoped_ptr<ECCVerifyHandle> globalVerifyHandle; + +void Interrupt(boost::thread_group& threadGroup) +{ + InterruptHTTPServer(); + InterruptHTTPRPC(); + InterruptRPC(); + InterruptREST(); + InterruptTorControl(); + threadGroup.interrupt_all(); +} + +void Shutdown() +{ + LogPrintf("%s: In progress...\n", __func__); + static CCriticalSection cs_Shutdown; + TRY_LOCK(cs_Shutdown, lockShutdown); + if (!lockShutdown) + return; + + /// Note: Shutdown() must be able to handle cases in which AppInit2() failed part of the way, + /// for example if the data directory was found to be locked. + /// Be sure that anything that writes files or flushes caches only does this if the respective + /// module was initialized. + RenameThread("bitcoin-shutoff"); + mempool.AddTransactionsUpdated(1); + + StopHTTPRPC(); + StopREST(); + StopRPC(); + StopHTTPServer(); +#ifdef ENABLE_WALLET + if (pwalletMain) + pwalletMain->Flush(false); +#endif + StopNode(); + StopTorControl(); + UnregisterNodeSignals(GetNodeSignals()); + + if (fFeeEstimatesInitialized) + { + boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME; + CAutoFile est_fileout(fopen(est_path.string().c_str(), "wb"), SER_DISK, CLIENT_VERSION); + if (!est_fileout.IsNull()) + mempool.WriteFeeEstimates(est_fileout); + else + LogPrintf("%s: Failed to write fee estimates to %s\n", __func__, est_path.string()); + fFeeEstimatesInitialized = false; + } + + { + LOCK(cs_main); + if (pcoinsTip != NULL) { + FlushStateToDisk(); + } + delete pcoinsTip; + pcoinsTip = NULL; + delete pcoinscatcher; + pcoinscatcher = NULL; + delete pcoinsdbview; + pcoinsdbview = NULL; + delete pblocktree; + pblocktree = NULL; + } +#ifdef ENABLE_WALLET + if (pwalletMain) + pwalletMain->Flush(true); +#endif + +#if ENABLE_ZMQ + if (pzmqNotificationInterface) { + UnregisterValidationInterface(pzmqNotificationInterface); + delete pzmqNotificationInterface; + pzmqNotificationInterface = NULL; + } +#endif + +#ifndef WIN32 + try { + boost::filesystem::remove(GetPidFile()); + } catch (const boost::filesystem::filesystem_error& e) { + LogPrintf("%s: Unable to remove pidfile: %s\n", __func__, e.what()); + } +#endif + UnregisterAllValidationInterfaces(); +#ifdef ENABLE_WALLET + delete pwalletMain; + pwalletMain = NULL; +#endif + globalVerifyHandle.reset(); + ECC_Stop(); + LogPrintf("%s: done\n", __func__); +} + +/** + * Signal handlers are very limited in what they are allowed to do, so: + */ +void HandleSIGTERM(int) +{ + fRequestShutdown = true; +} + +void HandleSIGHUP(int) +{ + fReopenDebugLog = true; +} + +bool static Bind(const CService &addr, unsigned int flags) { + if (!(flags & BF_EXPLICIT) && IsLimited(addr)) + return false; + std::string strError; + if (!BindListenPort(addr, strError, (flags & BF_WHITELIST) != 0)) { + if (flags & BF_REPORT_ERROR) + return InitError(strError); + return false; + } + return true; +} + +void OnRPCStopped() +{ + cvBlockChange.notify_all(); + LogPrint("rpc", "RPC stopped.\n"); +} + +void OnRPCPreCommand(const CRPCCommand& cmd) +{ + // Observe safe mode + string strWarning = GetWarnings("rpc"); + if (strWarning != "" && !GetBoolArg("-disablesafemode", DEFAULT_DISABLE_SAFEMODE) && + !cmd.okSafeMode) + throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, string("Safe mode: ") + strWarning); +} + +std::string HelpMessage(HelpMessageMode mode) +{ + const bool showDebug = GetBoolArg("-help-debug", false); + + // When adding new options to the categories, please keep and ensure alphabetical ordering. + // Do not translate _(...) -help-debug options, Many technical terms, and only a very small audience, so is unnecessary stress to translators. + string strUsage = HelpMessageGroup(_("Options:")); + strUsage += HelpMessageOpt("-?", _("Print this help message and exit")); + strUsage += HelpMessageOpt("-version", _("Print version and exit")); + strUsage += HelpMessageOpt("-alertnotify=<cmd>", _("Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)")); + strUsage += HelpMessageOpt("-blocknotify=<cmd>", _("Execute command when the best block changes (%s in cmd is replaced by block hash)")); + if (showDebug) + strUsage += HelpMessageOpt("-blocksonly", strprintf(_("Whether to operate in a blocks only mode (default: %u)"), DEFAULT_BLOCKSONLY)); + strUsage += HelpMessageOpt("-checkblocks=<n>", strprintf(_("How many blocks to check at startup (default: %u, 0 = all)"), DEFAULT_CHECKBLOCKS)); + strUsage += HelpMessageOpt("-checklevel=<n>", strprintf(_("How thorough the block verification of -checkblocks is (0-4, default: %u)"), DEFAULT_CHECKLEVEL)); + strUsage += HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file (default: %s)"), BITCOIN_CONF_FILENAME)); + if (mode == HMM_BITCOIND) + { +#ifndef WIN32 + strUsage += HelpMessageOpt("-daemon", _("Run in the background as a daemon and accept commands")); +#endif + } + strUsage += HelpMessageOpt("-datadir=<dir>", _("Specify data directory")); + strUsage += HelpMessageOpt("-dbcache=<n>", strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache, nMaxDbCache, nDefaultDbCache)); + if (showDebug) + strUsage += HelpMessageOpt("-feefilter", strprintf("Tell other nodes to filter invs to us by our mempool min fee (default: %u)", DEFAULT_FEEFILTER)); + strUsage += HelpMessageOpt("-loadblock=<file>", _("Imports blocks from external blk000??.dat file on startup")); + strUsage += HelpMessageOpt("-maxorphantx=<n>", strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS)); + strUsage += HelpMessageOpt("-maxmempool=<n>", strprintf(_("Keep the transaction memory pool below <n> megabytes (default: %u)"), DEFAULT_MAX_MEMPOOL_SIZE)); + strUsage += HelpMessageOpt("-mempoolexpiry=<n>", strprintf(_("Do not keep transactions in the mempool longer than <n> hours (default: %u)"), DEFAULT_MEMPOOL_EXPIRY)); + strUsage += HelpMessageOpt("-par=<n>", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"), + -GetNumCores(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS)); +#ifndef WIN32 + strUsage += HelpMessageOpt("-pid=<file>", strprintf(_("Specify pid file (default: %s)"), BITCOIN_PID_FILENAME)); +#endif + strUsage += HelpMessageOpt("-prune=<n>", strprintf(_("Reduce storage requirements by pruning (deleting) old blocks. This mode is incompatible with -txindex and -rescan. " + "Warning: Reverting this setting requires re-downloading the entire blockchain. " + "(default: 0 = disable pruning blocks, >%u = target size in MiB to use for block files)"), MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024)); + strUsage += HelpMessageOpt("-reindex-chainstate", _("Rebuild chain state from the currently indexed blocks")); + strUsage += HelpMessageOpt("-reindex", _("Rebuild chain state and block index from the blk*.dat files on disk")); +#ifndef WIN32 + strUsage += HelpMessageOpt("-sysperms", _("Create new files with system default permissions, instead of umask 077 (only effective with disabled wallet functionality)")); +#endif + strUsage += HelpMessageOpt("-txindex", strprintf(_("Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)"), DEFAULT_TXINDEX)); + + strUsage += HelpMessageGroup(_("Connection options:")); + strUsage += HelpMessageOpt("-addnode=<ip>", _("Add a node to connect to and attempt to keep the connection open")); + strUsage += HelpMessageOpt("-banscore=<n>", strprintf(_("Threshold for disconnecting misbehaving peers (default: %u)"), DEFAULT_BANSCORE_THRESHOLD)); + strUsage += HelpMessageOpt("-bantime=<n>", strprintf(_("Number of seconds to keep misbehaving peers from reconnecting (default: %u)"), DEFAULT_MISBEHAVING_BANTIME)); + strUsage += HelpMessageOpt("-bind=<addr>", _("Bind to given address and always listen on it. Use [host]:port notation for IPv6")); + strUsage += HelpMessageOpt("-connect=<ip>", _("Connect only to the specified node(s)")); + strUsage += HelpMessageOpt("-discover", _("Discover own IP addresses (default: 1 when listening and no -externalip or -proxy)")); + strUsage += HelpMessageOpt("-dns", _("Allow DNS lookups for -addnode, -seednode and -connect") + " " + strprintf(_("(default: %u)"), DEFAULT_NAME_LOOKUP)); + strUsage += HelpMessageOpt("-dnsseed", _("Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect)")); + strUsage += HelpMessageOpt("-externalip=<ip>", _("Specify your own public address")); + strUsage += HelpMessageOpt("-forcednsseed", strprintf(_("Always query for peer addresses via DNS lookup (default: %u)"), DEFAULT_FORCEDNSSEED)); + strUsage += HelpMessageOpt("-listen", _("Accept connections from outside (default: 1 if no -proxy or -connect)")); + strUsage += HelpMessageOpt("-listenonion", strprintf(_("Automatically create Tor hidden service (default: %d)"), DEFAULT_LISTEN_ONION)); + strUsage += HelpMessageOpt("-maxconnections=<n>", strprintf(_("Maintain at most <n> connections to peers (default: %u)"), DEFAULT_MAX_PEER_CONNECTIONS)); + strUsage += HelpMessageOpt("-maxreceivebuffer=<n>", strprintf(_("Maximum per-connection receive buffer, <n>*1000 bytes (default: %u)"), DEFAULT_MAXRECEIVEBUFFER)); + strUsage += HelpMessageOpt("-maxsendbuffer=<n>", strprintf(_("Maximum per-connection send buffer, <n>*1000 bytes (default: %u)"), DEFAULT_MAXSENDBUFFER)); + strUsage += HelpMessageOpt("-maxtimeadjustment", strprintf(_("Maximum allowed median peer time offset adjustment. Local perspective of time may be influenced by peers forward or backward by this amount. (default: %u seconds)"), DEFAULT_MAX_TIME_ADJUSTMENT)); + strUsage += HelpMessageOpt("-onion=<ip:port>", strprintf(_("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: %s)"), "-proxy")); + strUsage += HelpMessageOpt("-onlynet=<net>", _("Only connect to nodes in network <net> (ipv4, ipv6 or onion)")); + strUsage += HelpMessageOpt("-permitbaremultisig", strprintf(_("Relay non-P2SH multisig (default: %u)"), DEFAULT_PERMIT_BAREMULTISIG)); + strUsage += HelpMessageOpt("-peerbloomfilters", strprintf(_("Support filtering of blocks and transaction with bloom filters (default: %u)"), DEFAULT_PEERBLOOMFILTERS)); + strUsage += HelpMessageOpt("-port=<port>", strprintf(_("Listen for connections on <port> (default: %u or testnet: %u)"), Params(CBaseChainParams::MAIN).GetDefaultPort(), Params(CBaseChainParams::TESTNET).GetDefaultPort())); + strUsage += HelpMessageOpt("-proxy=<ip:port>", _("Connect through SOCKS5 proxy")); + strUsage += HelpMessageOpt("-proxyrandomize", strprintf(_("Randomize credentials for every proxy connection. This enables Tor stream isolation (default: %u)"), DEFAULT_PROXYRANDOMIZE)); + strUsage += HelpMessageOpt("-seednode=<ip>", _("Connect to a node to retrieve peer addresses, and disconnect")); + strUsage += HelpMessageOpt("-timeout=<n>", strprintf(_("Specify connection timeout in milliseconds (minimum: 1, default: %d)"), DEFAULT_CONNECT_TIMEOUT)); + strUsage += HelpMessageOpt("-torcontrol=<ip>:<port>", strprintf(_("Tor control port to use if onion listening enabled (default: %s)"), DEFAULT_TOR_CONTROL)); + strUsage += HelpMessageOpt("-torpassword=<pass>", _("Tor control port password (default: empty)")); +#ifdef USE_UPNP +#if USE_UPNP + strUsage += HelpMessageOpt("-upnp", _("Use UPnP to map the listening port (default: 1 when listening and no -proxy)")); +#else + strUsage += HelpMessageOpt("-upnp", strprintf(_("Use UPnP to map the listening port (default: %u)"), 0)); +#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.") + + " " + _("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 they violate local relay policy (default: %d)"), DEFAULT_WHITELISTFORCERELAY)); + strUsage += HelpMessageOpt("-maxuploadtarget=<n>", strprintf(_("Tries to keep outbound traffic under the given target (in MiB per 24h), 0 = no limit (default: %d)"), DEFAULT_MAX_UPLOAD_TARGET)); + +#ifdef ENABLE_WALLET + strUsage += CWallet::GetWalletHelpString(showDebug); +#endif + +#if ENABLE_ZMQ + strUsage += HelpMessageGroup(_("ZeroMQ notification options:")); + strUsage += HelpMessageOpt("-zmqpubhashblock=<address>", _("Enable publish hash block in <address>")); + strUsage += HelpMessageOpt("-zmqpubhashtx=<address>", _("Enable publish hash transaction in <address>")); + strUsage += HelpMessageOpt("-zmqpubrawblock=<address>", _("Enable publish raw block in <address>")); + strUsage += HelpMessageOpt("-zmqpubrawtx=<address>", _("Enable publish raw transaction in <address>")); +#endif + + strUsage += HelpMessageGroup(_("Debugging/Testing options:")); + strUsage += HelpMessageOpt("-uacomment=<cmt>", _("Append comment to the user agent string")); + if (showDebug) + { + strUsage += HelpMessageOpt("-checkblockindex", strprintf("Do a full consistency check for mapBlockIndex, setBlockIndexCandidates, chainActive and mapBlocksUnlinked occasionally. Also sets -checkmempool (default: %u)", Params(CBaseChainParams::MAIN).DefaultConsistencyChecks())); + strUsage += HelpMessageOpt("-checkmempool=<n>", strprintf("Run checks every <n> transactions (default: %u)", Params(CBaseChainParams::MAIN).DefaultConsistencyChecks())); + strUsage += HelpMessageOpt("-checkpoints", strprintf("Disable expensive verification for known chain history (default: %u)", DEFAULT_CHECKPOINTS_ENABLED)); + strUsage += HelpMessageOpt("-disablesafemode", strprintf("Disable safemode, override a real safe mode event (default: %u)", DEFAULT_DISABLE_SAFEMODE)); + strUsage += HelpMessageOpt("-testsafemode", strprintf("Force safe mode (default: %u)", DEFAULT_TESTSAFEMODE)); + strUsage += HelpMessageOpt("-dropmessagestest=<n>", "Randomly drop 1 of every <n> network messages"); + strUsage += HelpMessageOpt("-fuzzmessagestest=<n>", "Randomly fuzz 1 of every <n> network messages"); + strUsage += HelpMessageOpt("-stopafterblockimport", strprintf("Stop running after importing blocks from disk (default: %u)", DEFAULT_STOPAFTERBLOCKIMPORT)); + strUsage += HelpMessageOpt("-limitancestorcount=<n>", strprintf("Do not accept transactions if number of in-mempool ancestors is <n> or more (default: %u)", DEFAULT_ANCESTOR_LIMIT)); + strUsage += HelpMessageOpt("-limitancestorsize=<n>", strprintf("Do not accept transactions whose size with all in-mempool ancestors exceeds <n> kilobytes (default: %u)", DEFAULT_ANCESTOR_SIZE_LIMIT)); + strUsage += HelpMessageOpt("-limitdescendantcount=<n>", strprintf("Do not accept transactions if any ancestor would have <n> or more in-mempool descendants (default: %u)", DEFAULT_DESCENDANT_LIMIT)); + strUsage += HelpMessageOpt("-limitdescendantsize=<n>", strprintf("Do not accept transactions if any ancestor would have more than <n> kilobytes of in-mempool descendants (default: %u).", DEFAULT_DESCENDANT_SIZE_LIMIT)); + } + string debugCategories = "addrman, alert, bench, coindb, db, http, libevent, lock, mempool, mempoolrej, net, proxy, prune, rand, reindex, rpc, selectcoins, tor, zmq"; // Don't translate these and qt below + if (mode == HMM_BITCOIN_QT) + debugCategories += ", qt"; + strUsage += HelpMessageOpt("-debug=<category>", strprintf(_("Output debugging information (default: %u, supplying <category> is optional)"), 0) + ". " + + _("If <category> is not supplied or if <category> = 1, output all debugging information.") + _("<category> can be:") + " " + debugCategories + "."); + if (showDebug) + strUsage += HelpMessageOpt("-nodebug", "Turn off debugging messages, same as -debug=0"); + strUsage += HelpMessageOpt("-help-debug", _("Show all debugging options (usage: --help -help-debug)")); + strUsage += HelpMessageOpt("-logips", strprintf(_("Include IP addresses in debug output (default: %u)"), DEFAULT_LOGIPS)); + strUsage += HelpMessageOpt("-logtimestamps", strprintf(_("Prepend debug output with timestamp (default: %u)"), DEFAULT_LOGTIMESTAMPS)); + if (showDebug) + { + strUsage += HelpMessageOpt("-logtimemicros", strprintf("Add microsecond precision to debug timestamps (default: %u)", DEFAULT_LOGTIMEMICROS)); + strUsage += HelpMessageOpt("-mocktime=<n>", "Replace actual time with <n> seconds since epoch (default: 0)"); + strUsage += HelpMessageOpt("-limitfreerelay=<n>", strprintf("Continuously rate-limit free transactions to <n>*1000 bytes per minute (default: %u)", DEFAULT_LIMITFREERELAY)); + strUsage += HelpMessageOpt("-relaypriority", strprintf("Require high priority for relaying free or low-fee transactions (default: %u)", DEFAULT_RELAYPRIORITY)); + strUsage += HelpMessageOpt("-maxsigcachesize=<n>", strprintf("Limit size of signature cache to <n> MiB (default: %u)", DEFAULT_MAX_SIG_CACHE_SIZE)); + strUsage += HelpMessageOpt("-maxtipage=<n>", strprintf("Maximum tip age in seconds to consider node in initial block download (default: %u)", DEFAULT_MAX_TIP_AGE)); + } + strUsage += HelpMessageOpt("-minrelaytxfee=<amt>", strprintf(_("Fees (in %s/kB) smaller than this are considered zero fee for relaying, mining and transaction creation (default: %s)"), + CURRENCY_UNIT, FormatMoney(DEFAULT_MIN_RELAY_TX_FEE))); + strUsage += HelpMessageOpt("-maxtxfee=<amt>", strprintf(_("Maximum total fees (in %s) to use in a single wallet transaction or raw transaction; setting this too low may abort large transactions (default: %s)"), + CURRENCY_UNIT, FormatMoney(DEFAULT_TRANSACTION_MAXFEE))); + strUsage += HelpMessageOpt("-printtoconsole", _("Send trace/debug info to console instead of debug.log file")); + if (showDebug) + { + strUsage += HelpMessageOpt("-printpriority", strprintf("Log transaction priority and fee per kB when mining blocks (default: %u)", DEFAULT_PRINTPRIORITY)); + } + strUsage += HelpMessageOpt("-shrinkdebugfile", _("Shrink debug.log file on client startup (default: 1 when no -debug)")); + + AppendParamsHelpMessages(strUsage, showDebug); + + strUsage += HelpMessageGroup(_("Node relay options:")); + if (showDebug) + strUsage += HelpMessageOpt("-acceptnonstdtxn", strprintf("Relay and mine \"non-standard\" transactions (%sdefault: %u)", "testnet/regtest only; ", !Params(CBaseChainParams::TESTNET).RequireStandard())); + strUsage += HelpMessageOpt("-bytespersigop", strprintf(_("Minimum bytes per sigop in transactions we relay and mine (default: %u)"), DEFAULT_BYTES_PER_SIGOP)); + strUsage += HelpMessageOpt("-datacarrier", strprintf(_("Relay and mine data carrier transactions (default: %u)"), DEFAULT_ACCEPT_DATACARRIER)); + strUsage += HelpMessageOpt("-datacarriersize", strprintf(_("Maximum size of data in data carrier transactions we relay and mine (default: %u)"), MAX_OP_RETURN_RELAY)); + strUsage += HelpMessageOpt("-mempoolreplacement", strprintf(_("Enable transaction replacement in the memory pool (default: %u)"), DEFAULT_ENABLE_REPLACEMENT)); + + strUsage += HelpMessageGroup(_("Block creation options:")); + strUsage += HelpMessageOpt("-blockminsize=<n>", strprintf(_("Set minimum block size in bytes (default: %u)"), DEFAULT_BLOCK_MIN_SIZE)); + strUsage += HelpMessageOpt("-blockmaxsize=<n>", strprintf(_("Set maximum block size in bytes (default: %d)"), DEFAULT_BLOCK_MAX_SIZE)); + strUsage += HelpMessageOpt("-blockprioritysize=<n>", strprintf(_("Set maximum size of high-priority/low-fee transactions in bytes (default: %d)"), DEFAULT_BLOCK_PRIORITY_SIZE)); + if (showDebug) + strUsage += HelpMessageOpt("-blockversion=<n>", "Override block version to test forking scenarios"); + + strUsage += HelpMessageGroup(_("RPC server options:")); + strUsage += HelpMessageOpt("-server", _("Accept command line and JSON-RPC commands")); + strUsage += HelpMessageOpt("-rest", strprintf(_("Accept public REST requests (default: %u)"), DEFAULT_REST_ENABLE)); + strUsage += HelpMessageOpt("-rpcbind=<addr>", _("Bind to given address to listen for JSON-RPC connections. Use [host]:port notation for IPv6. This option can be specified multiple times (default: bind to all interfaces)")); + strUsage += HelpMessageOpt("-rpccookiefile=<loc>", _("Location of the auth cookie (default: data dir)")); + strUsage += HelpMessageOpt("-rpcuser=<user>", _("Username for JSON-RPC connections")); + strUsage += HelpMessageOpt("-rpcpassword=<pw>", _("Password for JSON-RPC connections")); + strUsage += HelpMessageOpt("-rpcauth=<userpw>", _("Username and hashed password for JSON-RPC connections. The field <userpw> comes in the format: <USERNAME>:<SALT>$<HASH>. A canonical python script is included in share/rpcuser. This option can be specified multiple times")); + strUsage += HelpMessageOpt("-rpcport=<port>", strprintf(_("Listen for JSON-RPC connections on <port> (default: %u or testnet: %u)"), BaseParams(CBaseChainParams::MAIN).RPCPort(), BaseParams(CBaseChainParams::TESTNET).RPCPort())); + strUsage += HelpMessageOpt("-rpcallowip=<ip>", _("Allow JSON-RPC connections from specified source. Valid for <ip> are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified multiple times")); + strUsage += HelpMessageOpt("-rpcthreads=<n>", strprintf(_("Set the number of threads to service RPC calls (default: %d)"), DEFAULT_HTTP_THREADS)); + if (showDebug) { + strUsage += HelpMessageOpt("-rpcworkqueue=<n>", strprintf("Set the depth of the work queue to service RPC calls (default: %d)", DEFAULT_HTTP_WORKQUEUE)); + strUsage += HelpMessageOpt("-rpcservertimeout=<n>", strprintf("Timeout during HTTP requests (default: %d)", DEFAULT_HTTP_SERVER_TIMEOUT)); + } + + return strUsage; +} + +std::string LicenseInfo() +{ + // todo: remove urls from translations on next change + return CopyrightHolders(strprintf(_("Copyright (C) %i-%i"), 2009, COPYRIGHT_YEAR) + " ") + "\n" + + "\n" + + _("This is experimental software.") + "\n" + + "\n" + + _("Distributed under the MIT software license, see the accompanying file COPYING or <http://www.opensource.org/licenses/mit-license.php>.") + "\n" + + "\n" + + _("This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit <https://www.openssl.org/> and cryptographic software written by Eric Young and UPnP software written by Thomas Bernard.") + + "\n"; +} + +static void BlockNotifyCallback(bool initialSync, const CBlockIndex *pBlockIndex) +{ + if (initialSync || !pBlockIndex) + return; + + std::string strCmd = GetArg("-blocknotify", ""); + + boost::replace_all(strCmd, "%s", pBlockIndex->GetBlockHash().GetHex()); + boost::thread t(runCommand, strCmd); // thread runs free +} + +struct CImportingNow +{ + CImportingNow() { + assert(fImporting == false); + fImporting = true; + } + + ~CImportingNow() { + assert(fImporting == true); + fImporting = false; + } +}; + + +// If we're using -prune with -reindex, then delete block files that will be ignored by the +// reindex. Since reindexing works by starting at block file 0 and looping until a blockfile +// is missing, do the same here to delete any later block files after a gap. Also delete all +// rev files since they'll be rewritten by the reindex anyway. This ensures that vinfoBlockFile +// is in sync with what's actually on disk by the time we start downloading, so that pruning +// works correctly. +void CleanupBlockRevFiles() +{ + using namespace boost::filesystem; + map<string, path> mapBlockFiles; + + // Glob all blk?????.dat and rev?????.dat files from the blocks directory. + // Remove the rev files immediately and insert the blk file paths into an + // ordered map keyed by block file index. + LogPrintf("Removing unusable blk?????.dat and rev?????.dat files for -reindex with -prune\n"); + path blocksdir = GetDataDir() / "blocks"; + for (directory_iterator it(blocksdir); it != directory_iterator(); it++) { + if (is_regular_file(*it) && + it->path().filename().string().length() == 12 && + it->path().filename().string().substr(8,4) == ".dat") + { + if (it->path().filename().string().substr(0,3) == "blk") + mapBlockFiles[it->path().filename().string().substr(3,5)] = it->path(); + else if (it->path().filename().string().substr(0,3) == "rev") + remove(it->path()); + } + } + + // Remove all block files that aren't part of a contiguous set starting at + // zero by walking the ordered map (keys are block file indices) by + // keeping a separate counter. Once we hit a gap (or if 0 doesn't exist) + // start removing block files. + int nContigCounter = 0; + BOOST_FOREACH(const PAIRTYPE(string, path)& item, mapBlockFiles) { + if (atoi(item.first) == nContigCounter) { + nContigCounter++; + continue; + } + remove(item.second); + } +} + +void ThreadImport(std::vector<boost::filesystem::path> vImportFiles) +{ + const CChainParams& chainparams = Params(); + RenameThread("bitcoin-loadblk"); + CImportingNow imp; + + // -reindex + if (fReindex) { + int nFile = 0; + while (true) { + CDiskBlockPos pos(nFile, 0); + if (!boost::filesystem::exists(GetBlockPosFilename(pos, "blk"))) + break; // No block files left to reindex + FILE *file = OpenBlockFile(pos, true); + if (!file) + break; // This error is logged in OpenBlockFile + LogPrintf("Reindexing block file blk%05u.dat...\n", (unsigned int)nFile); + LoadExternalBlockFile(chainparams, file, &pos); + nFile++; + } + pblocktree->WriteReindexing(false); + fReindex = false; + LogPrintf("Reindexing finished\n"); + // To avoid ending up in a situation without genesis block, re-try initializing (no-op if reindexing worked): + InitBlockIndex(chainparams); + } + + // hardcoded $DATADIR/bootstrap.dat + boost::filesystem::path pathBootstrap = GetDataDir() / "bootstrap.dat"; + if (boost::filesystem::exists(pathBootstrap)) { + FILE *file = fopen(pathBootstrap.string().c_str(), "rb"); + if (file) { + boost::filesystem::path pathBootstrapOld = GetDataDir() / "bootstrap.dat.old"; + LogPrintf("Importing bootstrap.dat...\n"); + LoadExternalBlockFile(chainparams, file); + RenameOver(pathBootstrap, pathBootstrapOld); + } else { + LogPrintf("Warning: Could not open bootstrap file %s\n", pathBootstrap.string()); + } + } + + // -loadblock= + BOOST_FOREACH(const boost::filesystem::path& path, vImportFiles) { + FILE *file = fopen(path.string().c_str(), "rb"); + if (file) { + LogPrintf("Importing blocks file %s...\n", path.string()); + LoadExternalBlockFile(chainparams, file); + } else { + LogPrintf("Warning: Could not open blocks file %s\n", path.string()); + } + } + + // scan for better chains in the block chain database, that are not yet connected in the active best chain + CValidationState state; + if (!ActivateBestChain(state, chainparams)) { + LogPrintf("Failed to connect best block"); + StartShutdown(); + } + + if (GetBoolArg("-stopafterblockimport", DEFAULT_STOPAFTERBLOCKIMPORT)) { + LogPrintf("Stopping after block import\n"); + StartShutdown(); + } +} + +/** Sanity checks + * Ensure that Bitcoin is running in a usable environment with all + * necessary library support. + */ +bool InitSanityCheck(void) +{ + if(!ECC_InitSanityCheck()) { + InitError("Elliptic curve cryptography sanity check failure. Aborting."); + return false; + } + if (!glibc_sanity_test() || !glibcxx_sanity_test()) + return false; + + return true; +} + +bool AppInitServers(boost::thread_group& threadGroup) +{ + RPCServer::OnStopped(&OnRPCStopped); + RPCServer::OnPreCommand(&OnRPCPreCommand); + if (!InitHTTPServer()) + return false; + if (!StartRPC()) + return false; + if (!StartHTTPRPC()) + return false; + if (GetBoolArg("-rest", DEFAULT_REST_ENABLE) && !StartREST()) + return false; + if (!StartHTTPServer()) + return false; + return true; +} + +// Parameter interaction based on rules +void InitParameterInteraction() +{ + // when specifying an explicit binding address, you want to listen on it + // even when -connect or -proxy is specified + if (mapArgs.count("-bind")) { + if (SoftSetBoolArg("-listen", true)) + LogPrintf("%s: parameter interaction: -bind set -> setting -listen=1\n", __func__); + } + if (mapArgs.count("-whitebind")) { + if (SoftSetBoolArg("-listen", true)) + LogPrintf("%s: parameter interaction: -whitebind set -> setting -listen=1\n", __func__); + } + + if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0) { + // when only connecting to trusted nodes, do not seed via DNS, or listen by default + if (SoftSetBoolArg("-dnsseed", false)) + LogPrintf("%s: parameter interaction: -connect set -> setting -dnsseed=0\n", __func__); + if (SoftSetBoolArg("-listen", false)) + LogPrintf("%s: parameter interaction: -connect set -> setting -listen=0\n", __func__); + } + + if (mapArgs.count("-proxy")) { + // to protect privacy, do not listen by default if a default proxy server is specified + if (SoftSetBoolArg("-listen", false)) + LogPrintf("%s: parameter interaction: -proxy set -> setting -listen=0\n", __func__); + // to protect privacy, do not use UPNP when a proxy is set. The user may still specify -listen=1 + // to listen locally, so don't rely on this happening through -listen below. + if (SoftSetBoolArg("-upnp", false)) + LogPrintf("%s: parameter interaction: -proxy set -> setting -upnp=0\n", __func__); + // to protect privacy, do not discover addresses by default + if (SoftSetBoolArg("-discover", false)) + LogPrintf("%s: parameter interaction: -proxy set -> setting -discover=0\n", __func__); + } + + if (!GetBoolArg("-listen", DEFAULT_LISTEN)) { + // do not map ports or try to retrieve public IP when not listening (pointless) + if (SoftSetBoolArg("-upnp", false)) + LogPrintf("%s: parameter interaction: -listen=0 -> setting -upnp=0\n", __func__); + if (SoftSetBoolArg("-discover", false)) + LogPrintf("%s: parameter interaction: -listen=0 -> setting -discover=0\n", __func__); + if (SoftSetBoolArg("-listenonion", false)) + LogPrintf("%s: parameter interaction: -listen=0 -> setting -listenonion=0\n", __func__); + } + + if (mapArgs.count("-externalip")) { + // if an explicit public IP is specified, do not try to find others + if (SoftSetBoolArg("-discover", false)) + LogPrintf("%s: parameter interaction: -externalip set -> setting -discover=0\n", __func__); + } + + if (GetBoolArg("-salvagewallet", false)) { + // Rewrite just private keys: rescan to find transactions + if (SoftSetBoolArg("-rescan", true)) + LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__); + } + + // -zapwallettx implies a rescan + if (GetBoolArg("-zapwallettxes", false)) { + if (SoftSetBoolArg("-rescan", true)) + LogPrintf("%s: parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n", __func__); + } + + // disable walletbroadcast and whitelistrelay in blocksonly mode + if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY)) { + if (SoftSetBoolArg("-whitelistrelay", false)) + LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -whitelistrelay=0\n", __func__); +#ifdef ENABLE_WALLET + if (SoftSetBoolArg("-walletbroadcast", false)) + LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__); +#endif + } + + // Forcing relay from whitelisted hosts implies we will accept relays from them in the first place. + if (GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) { + if (SoftSetBoolArg("-whitelistrelay", true)) + LogPrintf("%s: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1\n", __func__); + } +} + +static std::string ResolveErrMsg(const char * const optname, const std::string& strBind) +{ + return strprintf(_("Cannot resolve -%s address: '%s'"), optname, strBind); +} + +void InitLogging() +{ + fPrintToConsole = GetBoolArg("-printtoconsole", false); + fLogTimestamps = GetBoolArg("-logtimestamps", DEFAULT_LOGTIMESTAMPS); + fLogTimeMicros = GetBoolArg("-logtimemicros", DEFAULT_LOGTIMEMICROS); + fLogIPs = GetBoolArg("-logips", DEFAULT_LOGIPS); + + LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"); + LogPrintf("Bitcoin version %s (%s)\n", FormatFullVersion(), CLIENT_DATE); +} + +/** Initialize bitcoin. + * @pre Parameters should be parsed and config file should be read. + */ +bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler) +{ + // ********************************************************* Step 1: setup +#ifdef _MSC_VER + // Turn off Microsoft heap dump noise + _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE); + _CrtSetReportFile(_CRT_WARN, CreateFileA("NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0)); +#endif +#if _MSC_VER >= 1400 + // Disable confusing "helpful" text message on abort, Ctrl-C + _set_abort_behavior(0, _WRITE_ABORT_MSG | _CALL_REPORTFAULT); +#endif +#ifdef WIN32 + // Enable Data Execution Prevention (DEP) + // Minimum supported OS versions: WinXP SP3, WinVista >= SP1, Win Server 2008 + // A failure is non-critical and needs no further attention! +#ifndef PROCESS_DEP_ENABLE + // We define this here, because GCCs winbase.h limits this to _WIN32_WINNT >= 0x0601 (Windows 7), + // which is not correct. Can be removed, when GCCs winbase.h is fixed! +#define PROCESS_DEP_ENABLE 0x00000001 +#endif + typedef BOOL (WINAPI *PSETPROCDEPPOL)(DWORD); + PSETPROCDEPPOL setProcDEPPol = (PSETPROCDEPPOL)GetProcAddress(GetModuleHandleA("Kernel32.dll"), "SetProcessDEPPolicy"); + if (setProcDEPPol != NULL) setProcDEPPol(PROCESS_DEP_ENABLE); +#endif + + if (!SetupNetworking()) + return InitError("Initializing networking failed"); + +#ifndef WIN32 + if (GetBoolArg("-sysperms", false)) { +#ifdef ENABLE_WALLET + if (!GetBoolArg("-disablewallet", false)) + return InitError("-sysperms is not allowed in combination with enabled wallet functionality"); +#endif + } else { + umask(077); + } + + // Clean shutdown on SIGTERM + struct sigaction sa; + sa.sa_handler = HandleSIGTERM; + sigemptyset(&sa.sa_mask); + sa.sa_flags = 0; + sigaction(SIGTERM, &sa, NULL); + sigaction(SIGINT, &sa, NULL); + + // Reopen debug.log on SIGHUP + struct sigaction sa_hup; + sa_hup.sa_handler = HandleSIGHUP; + sigemptyset(&sa_hup.sa_mask); + sa_hup.sa_flags = 0; + sigaction(SIGHUP, &sa_hup, NULL); + + // Ignore SIGPIPE, otherwise it will bring the daemon down if the client closes unexpectedly + signal(SIGPIPE, SIG_IGN); +#endif + + // ********************************************************* Step 2: parameter interactions + const CChainParams& chainparams = Params(); + + // also see: InitParameterInteraction() + + // if using block pruning, then disable txindex + if (GetArg("-prune", 0)) { + if (GetBoolArg("-txindex", DEFAULT_TXINDEX)) + return InitError(_("Prune mode is incompatible with -txindex.")); +#ifdef ENABLE_WALLET + if (GetBoolArg("-rescan", false)) { + return InitError(_("Rescans are not possible in pruned mode. You will need to use -reindex which will download the whole blockchain again.")); + } +#endif + } + + // 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); + 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); + if (nFD < MIN_CORE_FILEDESCRIPTORS) + return InitError(_("Not enough file descriptors available.")); + nMaxConnections = std::min(nFD - MIN_CORE_FILEDESCRIPTORS, nMaxConnections); + + if (nMaxConnections < nUserMaxConnections) + InitWarning(strprintf(_("Reducing -maxconnections from %d to %d, because of system limitations."), nUserMaxConnections, nMaxConnections)); + + // ********************************************************* Step 3: parameter-to-internal-flags + + fDebug = !mapMultiArgs["-debug"].empty(); + // Special-case: if -debug=0/-nodebug is set, turn off debugging messages + const vector<string>& categories = mapMultiArgs["-debug"]; + if (GetBoolArg("-nodebug", false) || find(categories.begin(), categories.end(), string("0")) != categories.end()) + fDebug = false; + + // Check for -debugnet + if (GetBoolArg("-debugnet", false)) + InitWarning(_("Unsupported argument -debugnet ignored, use -debug=net.")); + // Check for -socks - as this is a privacy risk to continue, exit here + if (mapArgs.count("-socks")) + return InitError(_("Unsupported argument -socks found. Setting SOCKS version isn't possible anymore, only SOCKS5 proxies are supported.")); + // Check for -tor - as this is a privacy risk to continue, exit here + if (GetBoolArg("-tor", false)) + return InitError(_("Unsupported argument -tor found, use -onion.")); + + if (GetBoolArg("-benchmark", false)) + InitWarning(_("Unsupported argument -benchmark ignored, use -debug=bench.")); + + if (GetBoolArg("-whitelistalwaysrelay", false)) + InitWarning(_("Unsupported argument -whitelistalwaysrelay ignored, use -whitelistrelay and/or -whitelistforcerelay.")); + + // Checkmempool and checkblockindex default to true in regtest mode + int ratio = std::min<int>(std::max<int>(GetArg("-checkmempool", chainparams.DefaultConsistencyChecks() ? 1 : 0), 0), 1000000); + if (ratio != 0) { + mempool.setSanityCheck(1.0 / ratio); + } + fCheckBlockIndex = GetBoolArg("-checkblockindex", chainparams.DefaultConsistencyChecks()); + fCheckpointsEnabled = GetBoolArg("-checkpoints", DEFAULT_CHECKPOINTS_ENABLED); + + // mempool limits + int64_t nMempoolSizeMax = GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000; + int64_t nMempoolSizeMin = GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT) * 1000 * 40; + if (nMempoolSizeMax < 0 || nMempoolSizeMax < nMempoolSizeMin) + return InitError(strprintf(_("-maxmempool must be at least %d MB"), std::ceil(nMempoolSizeMin / 1000000.0))); + + // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency + nScriptCheckThreads = GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS); + if (nScriptCheckThreads <= 0) + nScriptCheckThreads += GetNumCores(); + if (nScriptCheckThreads <= 1) + nScriptCheckThreads = 0; + 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) { + return InitError(_("Prune cannot be configured with a negative value.")); + } + nPruneTarget = (uint64_t) nSignedPruneTarget; + if (nPruneTarget) { + if (nPruneTarget < MIN_DISK_SPACE_FOR_BLOCK_FILES) { + return InitError(strprintf(_("Prune configured below the minimum of %d MiB. Please use a higher number."), MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024)); + } + LogPrintf("Prune configured to target %uMiB on disk for block and undo files.\n", nPruneTarget / 1024 / 1024); + fPruneMode = true; + } + + RegisterAllCoreRPCCommands(tableRPC); +#ifdef ENABLE_WALLET + bool fDisableWallet = GetBoolArg("-disablewallet", false); + if (!fDisableWallet) + RegisterWalletRPCCommands(tableRPC); +#endif + + nConnectTimeout = GetArg("-timeout", DEFAULT_CONNECT_TIMEOUT); + if (nConnectTimeout <= 0) + nConnectTimeout = DEFAULT_CONNECT_TIMEOUT; + + // Fee-per-kilobyte amount considered the same as "free" + // If you are mining, be careful setting this: + // if you set it to zero then + // a transaction spammer can cheaply fill blocks using + // 1-satoshi-fee transactions. It should be set above the real + // cost to you of processing a transaction. + if (mapArgs.count("-minrelaytxfee")) + { + CAmount n = 0; + if (ParseMoney(mapArgs["-minrelaytxfee"], n) && n > 0) + ::minRelayTxFee = CFeeRate(n); + else + return InitError(AmountErrMsg("minrelaytxfee", mapArgs["-minrelaytxfee"])); + } + + fRequireStandard = !GetBoolArg("-acceptnonstdtxn", !Params().RequireStandard()); + if (Params().RequireStandard() && !fRequireStandard) + return InitError(strprintf("acceptnonstdtxn is not currently supported for %s chain", chainparams.NetworkIDString())); + nBytesPerSigOp = GetArg("-bytespersigop", nBytesPerSigOp); + +#ifdef ENABLE_WALLET + if (!CWallet::ParameterInteraction()) + return false; +#endif // ENABLE_WALLET + + fIsBareMultisigStd = GetBoolArg("-permitbaremultisig", DEFAULT_PERMIT_BAREMULTISIG); + fAcceptDatacarrier = GetBoolArg("-datacarrier", DEFAULT_ACCEPT_DATACARRIER); + nMaxDatacarrierBytes = GetArg("-datacarriersize", nMaxDatacarrierBytes); + + // Option to startup with mocktime set (used for regression testing): + SetMockTime(GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op + + if (GetBoolArg("-peerbloomfilters", DEFAULT_PEERBLOOMFILTERS)) + nLocalServices |= NODE_BLOOM; + + nMaxTipAge = GetArg("-maxtipage", DEFAULT_MAX_TIP_AGE); + + fEnableReplacement = GetBoolArg("-mempoolreplacement", DEFAULT_ENABLE_REPLACEMENT); + if ((!fEnableReplacement) && mapArgs.count("-mempoolreplacement")) { + // Minimal effort at forwards compatibility + std::string strReplacementModeList = GetArg("-mempoolreplacement", ""); // default is impossible + std::vector<std::string> vstrReplacementModes; + boost::split(vstrReplacementModes, strReplacementModeList, boost::is_any_of(",")); + fEnableReplacement = (std::find(vstrReplacementModes.begin(), vstrReplacementModes.end(), "fee") != vstrReplacementModes.end()); + } + + // ********************************************************* 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))); + + std::string strDataDir = GetDataDir().string(); + + // Make sure only a single Bitcoin process is using the data directory. + boost::filesystem::path pathLockFile = GetDataDir() / ".lock"; + FILE* file = fopen(pathLockFile.string().c_str(), "a"); // empty lock file; created if it doesn't exist. + if (file) fclose(file); + + try { + static boost::interprocess::file_lock lock(pathLockFile.string().c_str()); + if (!lock.try_lock()) + return InitError(strprintf(_("Cannot obtain a lock on data directory %s. %s is probably already running."), strDataDir, _(PACKAGE_NAME))); + } 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())); + } + +#ifndef WIN32 + CreatePidFile(GetPidFile(), getpid()); +#endif + if (GetBoolArg("-shrinkdebugfile", !fDebug)) + ShrinkDebugFile(); + + if (fPrintToDebugLog) + OpenDebugLog(); + + if (!fLogTimestamps) + LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime())); + LogPrintf("Default data directory %s\n", GetDefaultDataDir().string()); + LogPrintf("Using data directory %s\n", strDataDir); + LogPrintf("Using config file %s\n", GetConfigFile().string()); + LogPrintf("Using at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD); + std::ostringstream strErrors; + + LogPrintf("Using %u threads for script verification\n", nScriptCheckThreads); + if (nScriptCheckThreads) { + for (int i=0; i<nScriptCheckThreads-1; i++) + threadGroup.create_thread(&ThreadScriptCheck); + } + + // Start the lightweight task scheduler thread + CScheduler::Function serviceLoop = boost::bind(&CScheduler::serviceQueue, &scheduler); + threadGroup.create_thread(boost::bind(&TraceThread<CScheduler::Function>, "scheduler", serviceLoop)); + + /* Start the RPC server already. It will be started in "warmup" mode + * and not really process calls already (but it will signify connections + * that the server is there and will be ready later). Warmup mode will + * be disabled when initialisation is finished. + */ + if (fServer) + { + uiInterface.InitMessage.connect(SetRPCWarmupStatus); + if (!AppInitServers(threadGroup)) + return InitError(_("Unable to start HTTP server. See debug log for details.")); + } + + int64_t nStart; + + // ********************************************************* Step 5: verify wallet database integrity +#ifdef ENABLE_WALLET + if (!fDisableWallet) { + if (!CWallet::Verify()) + return false; + } // (!fDisableWallet) +#endif // ENABLE_WALLET + // ********************************************************* Step 6: network initialization + + RegisterNodeSignals(GetNodeSignals()); + + // sanitize comments per BIP-0014, format user agent and check total size + std::vector<string> uacomments; + BOOST_FOREACH(string cmt, mapMultiArgs["-uacomment"]) + { + if (cmt != SanitizeString(cmt, SAFE_CHARS_UA_COMMENT)) + return InitError(strprintf(_("User Agent comment (%s) contains unsafe characters."), cmt)); + uacomments.push_back(SanitizeString(cmt, SAFE_CHARS_UA_COMMENT)); + } + strSubVersion = FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, uacomments); + if (strSubVersion.size() > MAX_SUBVERSION_LENGTH) { + return InitError(strprintf(_("Total length of network version string (%i) exceeds maximum length (%i). Reduce the number or size of uacomments."), + strSubVersion.size(), MAX_SUBVERSION_LENGTH)); + } + + if (mapArgs.count("-onlynet")) { + std::set<enum Network> nets; + BOOST_FOREACH(const std::string& snet, mapMultiArgs["-onlynet"]) { + enum Network net = ParseNetwork(snet); + if (net == NET_UNROUTABLE) + return InitError(strprintf(_("Unknown network specified in -onlynet: '%s'"), snet)); + nets.insert(net); + } + for (int n = 0; n < NET_MAX; n++) { + enum Network net = (enum Network)n; + if (!nets.count(net)) + SetLimited(net); + } + } + + if (mapArgs.count("-whitelist")) { + BOOST_FOREACH(const std::string& net, mapMultiArgs["-whitelist"]) { + CSubNet subnet(net); + if (!subnet.IsValid()) + return InitError(strprintf(_("Invalid netmask specified in -whitelist: '%s'"), net)); + CNode::AddWhitelistedRange(subnet); + } + } + + bool proxyRandomize = GetBoolArg("-proxyrandomize", DEFAULT_PROXYRANDOMIZE); + // -proxy sets a proxy for all outgoing network traffic + // -noproxy (or -proxy=0) as well as the empty string can be used to not set a proxy, this is the default + std::string proxyArg = GetArg("-proxy", ""); + SetLimited(NET_TOR); + if (proxyArg != "" && proxyArg != "0") { + proxyType addrProxy = proxyType(CService(proxyArg, 9050), proxyRandomize); + if (!addrProxy.IsValid()) + return InitError(strprintf(_("Invalid -proxy address: '%s'"), proxyArg)); + + SetProxy(NET_IPV4, addrProxy); + SetProxy(NET_IPV6, addrProxy); + SetProxy(NET_TOR, addrProxy); + SetNameProxy(addrProxy); + SetLimited(NET_TOR, false); // by default, -proxy sets onion as reachable, unless -noonion later + } + + // -onion can be used to set only a proxy for .onion, or override normal proxy for .onion addresses + // -noonion (or -onion=0) disables connecting to .onion entirely + // An empty string is used to not override the onion proxy (in which case it defaults to -proxy set above, or none) + std::string onionArg = GetArg("-onion", ""); + if (onionArg != "") { + if (onionArg == "0") { // Handle -noonion/-onion=0 + SetLimited(NET_TOR); // set onions as unreachable + } else { + proxyType addrOnion = proxyType(CService(onionArg, 9050), proxyRandomize); + if (!addrOnion.IsValid()) + return InitError(strprintf(_("Invalid -onion address: '%s'"), onionArg)); + SetProxy(NET_TOR, addrOnion); + SetLimited(NET_TOR, false); + } + } + + // see Step 2: parameter interactions for more information about these + fListen = GetBoolArg("-listen", DEFAULT_LISTEN); + fDiscover = GetBoolArg("-discover", true); + fNameLookup = GetBoolArg("-dns", DEFAULT_NAME_LOOKUP); + fRelayTxes = !GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY); + + bool fBound = false; + if (fListen) { + if (mapArgs.count("-bind") || mapArgs.count("-whitebind")) { + BOOST_FOREACH(const std::string& strBind, mapMultiArgs["-bind"]) { + CService addrBind; + if (!Lookup(strBind.c_str(), addrBind, GetListenPort(), false)) + return InitError(ResolveErrMsg("bind", strBind)); + fBound |= Bind(addrBind, (BF_EXPLICIT | BF_REPORT_ERROR)); + } + BOOST_FOREACH(const std::string& strBind, mapMultiArgs["-whitebind"]) { + CService addrBind; + if (!Lookup(strBind.c_str(), addrBind, 0, false)) + return InitError(ResolveErrMsg("whitebind", strBind)); + if (addrBind.GetPort() == 0) + return InitError(strprintf(_("Need to specify a port with -whitebind: '%s'"), strBind)); + fBound |= Bind(addrBind, (BF_EXPLICIT | BF_REPORT_ERROR | BF_WHITELIST)); + } + } + else { + struct in_addr inaddr_any; + inaddr_any.s_addr = INADDR_ANY; + fBound |= Bind(CService(in6addr_any, GetListenPort()), BF_NONE); + fBound |= Bind(CService(inaddr_any, GetListenPort()), !fBound ? BF_REPORT_ERROR : BF_NONE); + } + if (!fBound) + return InitError(_("Failed to listen on any port. Use -listen=0 if you want this.")); + } + + if (mapArgs.count("-externalip")) { + BOOST_FOREACH(const std::string& strAddr, mapMultiArgs["-externalip"]) { + CService addrLocal; + if (Lookup(strAddr.c_str(), addrLocal, GetListenPort(), fNameLookup) && addrLocal.IsValid()) + AddLocal(addrLocal, LOCAL_MANUAL); + else + return InitError(ResolveErrMsg("externalip", strAddr)); + } + } + + BOOST_FOREACH(const std::string& strDest, mapMultiArgs["-seednode"]) + AddOneShot(strDest); + +#if ENABLE_ZMQ + pzmqNotificationInterface = CZMQNotificationInterface::CreateWithArguments(mapArgs); + + if (pzmqNotificationInterface) { + RegisterValidationInterface(pzmqNotificationInterface); + } +#endif + if (mapArgs.count("-maxuploadtarget")) { + CNode::SetMaxOutboundTarget(GetArg("-maxuploadtarget", DEFAULT_MAX_UPLOAD_TARGET)*1024*1024); + } + + // ********************************************************* Step 7: load block chain + + fReindex = GetBoolArg("-reindex", false); + bool fReindexChainState = GetBoolArg("-reindex-chainstate", false); + + // Upgrading to 0.8; hard-link the old blknnnn.dat files into /blocks/ + boost::filesystem::path blocksDir = GetDataDir() / "blocks"; + if (!boost::filesystem::exists(blocksDir)) + { + boost::filesystem::create_directories(blocksDir); + bool linked = false; + for (unsigned int i = 1; i < 10000; i++) { + boost::filesystem::path source = GetDataDir() / strprintf("blk%04u.dat", i); + if (!boost::filesystem::exists(source)) break; + boost::filesystem::path dest = blocksDir / strprintf("blk%05u.dat", i-1); + try { + boost::filesystem::create_hard_link(source, dest); + LogPrintf("Hardlinked %s -> %s\n", source.string(), dest.string()); + linked = true; + } catch (const boost::filesystem::filesystem_error& e) { + // Note: hardlink creation failing is not a disaster, it just means + // blocks will get re-downloaded from peers. + LogPrintf("Error hardlinking blk%04u.dat: %s\n", i, e.what()); + break; + } + } + if (linked) + { + fReindex = true; + } + } + + // cache size calculations + int64_t nTotalCache = (GetArg("-dbcache", nDefaultDbCache) << 20); + nTotalCache = std::max(nTotalCache, nMinDbCache << 20); // total cache cannot be less than nMinDbCache + nTotalCache = std::min(nTotalCache, nMaxDbCache << 20); // total cache cannot be greated than nMaxDbcache + int64_t nBlockTreeDBCache = nTotalCache / 8; + if (nBlockTreeDBCache > (1 << 21) && !GetBoolArg("-txindex", DEFAULT_TXINDEX)) + nBlockTreeDBCache = (1 << 21); // block tree db cache shouldn't be larger than 2 MiB + nTotalCache -= nBlockTreeDBCache; + int64_t nCoinDBCache = std::min(nTotalCache / 2, (nTotalCache / 4) + (1 << 23)); // use 25%-50% of the remainder for disk cache + nTotalCache -= nCoinDBCache; + nCoinCacheUsage = nTotalCache; // the rest goes to in-memory cache + LogPrintf("Cache configuration:\n"); + LogPrintf("* Using %.1fMiB for block index database\n", nBlockTreeDBCache * (1.0 / 1024 / 1024)); + LogPrintf("* Using %.1fMiB for chain state database\n", nCoinDBCache * (1.0 / 1024 / 1024)); + LogPrintf("* Using %.1fMiB for in-memory UTXO set\n", nCoinCacheUsage * (1.0 / 1024 / 1024)); + + bool fLoaded = false; + while (!fLoaded) { + bool fReset = fReindex; + std::string strLoadError; + + uiInterface.InitMessage(_("Loading block index...")); + + nStart = GetTimeMillis(); + do { + try { + UnloadBlockIndex(); + delete pcoinsTip; + delete pcoinsdbview; + delete pcoinscatcher; + delete pblocktree; + + pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReindex); + pcoinsdbview = new CCoinsViewDB(nCoinDBCache, false, fReindex || fReindexChainState); + pcoinscatcher = new CCoinsViewErrorCatcher(pcoinsdbview); + pcoinsTip = new CCoinsViewCache(pcoinscatcher); + + if (fReindex) { + pblocktree->WriteReindexing(true); + //If we're reindexing in prune mode, wipe away unusable block files and all undo data files + if (fPruneMode) + CleanupBlockRevFiles(); + } + + if (!LoadBlockIndex()) { + strLoadError = _("Error loading block database"); + break; + } + + // If the loaded chain has a wrong genesis, bail out immediately + // (we're likely using a testnet datadir, or the other way around). + if (!mapBlockIndex.empty() && mapBlockIndex.count(chainparams.GetConsensus().hashGenesisBlock) == 0) + return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?")); + + // Initialize the block index (no-op if non-empty database was already loaded) + if (!InitBlockIndex(chainparams)) { + strLoadError = _("Error initializing block database"); + break; + } + + // Check for changed -txindex state + if (fTxIndex != GetBoolArg("-txindex", DEFAULT_TXINDEX)) { + strLoadError = _("You need to rebuild the database using -reindex-chainstate to change -txindex"); + break; + } + + // Check for changed -prune state. What we are concerned about is a user who has pruned blocks + // in the past, but is now trying to run unpruned. + if (fHavePruned && !fPruneMode) { + strLoadError = _("You need to rebuild the database using -reindex to go back to unpruned mode. This will redownload the entire blockchain"); + break; + } + + uiInterface.InitMessage(_("Verifying blocks...")); + if (fHavePruned && GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) { + LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks", + MIN_BLOCKS_TO_KEEP); + } + + { + LOCK(cs_main); + CBlockIndex* tip = chainActive.Tip(); + if (tip && tip->nTime > GetAdjustedTime() + 2 * 60 * 60) { + strLoadError = _("The block database contains a block which appears to be from the future. " + "This may be due to your computer's date and time being set incorrectly. " + "Only rebuild the block database if you are sure that your computer's date and time are correct"); + break; + } + } + + if (!CVerifyDB().VerifyDB(chainparams, pcoinsdbview, GetArg("-checklevel", DEFAULT_CHECKLEVEL), + GetArg("-checkblocks", DEFAULT_CHECKBLOCKS))) { + strLoadError = _("Corrupted block database detected"); + break; + } + } catch (const std::exception& e) { + if (fDebug) LogPrintf("%s\n", e.what()); + strLoadError = _("Error opening block database"); + break; + } + + fLoaded = true; + } while(false); + + if (!fLoaded) { + // first suggest a reindex + if (!fReset) { + bool fRet = uiInterface.ThreadSafeMessageBox( + strLoadError + ".\n\n" + _("Do you want to rebuild the block database now?"), + "", CClientUIInterface::MSG_ERROR | CClientUIInterface::BTN_ABORT); + if (fRet) { + fReindex = true; + fRequestShutdown = false; + } else { + LogPrintf("Aborted block database rebuild. Exiting.\n"); + return false; + } + } else { + return InitError(strLoadError); + } + } + } + + // As LoadBlockIndex can take several minutes, it's possible the user + // requested to kill the GUI during the last operation. If so, exit. + // As the program has not fully started yet, Shutdown() is possibly overkill. + if (fRequestShutdown) + { + LogPrintf("Shutdown requested. Exiting.\n"); + return false; + } + LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart); + + boost::filesystem::path est_path = GetDataDir() / FEE_ESTIMATES_FILENAME; + CAutoFile est_filein(fopen(est_path.string().c_str(), "rb"), SER_DISK, CLIENT_VERSION); + // Allowed to fail as this file IS missing on first startup. + if (!est_filein.IsNull()) + mempool.ReadFeeEstimates(est_filein); + fFeeEstimatesInitialized = true; + + // ********************************************************* Step 8: load wallet +#ifdef ENABLE_WALLET + if (fDisableWallet) { + pwalletMain = NULL; + LogPrintf("Wallet disabled!\n"); + } else { + CWallet::InitLoadWallet(); + if (!pwalletMain) + return false; + } +#else // ENABLE_WALLET + LogPrintf("No wallet support compiled in!\n"); +#endif // !ENABLE_WALLET + + // ********************************************************* Step 9: data directory maintenance + + // if pruning, unset the service bit and perform the initial blockstore prune + // after any wallet rescanning has taken place. + if (fPruneMode) { + LogPrintf("Unsetting NODE_NETWORK on prune mode\n"); + nLocalServices &= ~NODE_NETWORK; + if (!fReindex) { + uiInterface.InitMessage(_("Pruning blockstore...")); + PruneAndFlush(); + } + } + + // ********************************************************* Step 10: import blocks + + if (mapArgs.count("-blocknotify")) + uiInterface.NotifyBlockTip.connect(BlockNotifyCallback); + + std::vector<boost::filesystem::path> vImportFiles; + if (mapArgs.count("-loadblock")) + { + BOOST_FOREACH(const std::string& strFile, mapMultiArgs["-loadblock"]) + vImportFiles.push_back(strFile); + } + threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles)); + + // Wait for genesis block to be processed + bool fHaveGenesis = false; + while (!fHaveGenesis && !fRequestShutdown) { + { + LOCK(cs_main); + fHaveGenesis = (chainActive.Tip() != NULL); + } + + if (!fHaveGenesis) { + MilliSleep(10); + } + } + + // ********************************************************* Step 11: start node + + if (!CheckDiskSpace()) + return false; + + if (!strErrors.str().empty()) + return InitError(strErrors.str()); + + //// debug print + LogPrintf("mapBlockIndex.size() = %u\n", mapBlockIndex.size()); + LogPrintf("nBestHeight = %d\n", chainActive.Height()); +#ifdef ENABLE_WALLET + LogPrintf("setKeyPool.size() = %u\n", pwalletMain ? pwalletMain->setKeyPool.size() : 0); + LogPrintf("mapWallet.size() = %u\n", pwalletMain ? pwalletMain->mapWallet.size() : 0); + LogPrintf("mapAddressBook.size() = %u\n", pwalletMain ? pwalletMain->mapAddressBook.size() : 0); +#endif + + if (GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION)) + StartTorControl(threadGroup, scheduler); + + StartNode(threadGroup, scheduler); + + // Monitor the chain, and alert if we get blocks much quicker or slower than expected + int64_t nPowTargetSpacing = Params().GetConsensus().nPowTargetSpacing; + CScheduler::Function f = boost::bind(&PartitionCheck, &IsInitialBlockDownload, + boost::ref(cs_main), boost::cref(pindexBestHeader), nPowTargetSpacing); + scheduler.scheduleEvery(f, nPowTargetSpacing); + + // ********************************************************* Step 12: finished + + SetRPCWarmupFinished(); + uiInterface.InitMessage(_("Done loading")); + +#ifdef ENABLE_WALLET + if (pwalletMain) { + // Add wallet transactions that aren't already in a block to mapTransactions + pwalletMain->ReacceptWalletTransactions(); + + // Run a thread to flush wallet periodically + threadGroup.create_thread(boost::bind(&ThreadFlushWalletDB, boost::ref(pwalletMain->strWalletFile))); + } +#endif + + return !fRequestShutdown; +} |