// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-#include "headers.h"
#include "checkpoints.h"
#include "db.h"
#include "net.h"
#include "init.h"
+#include "ui_interface.h"
#include <boost/algorithm/string/replace.hpp>
#include <boost/filesystem.hpp>
#include <boost/filesystem/fstream.hpp>
// Global state
//
-// Name of client reported in the 'version' message. Report the same name
-// for both bitcoind and bitcoin-qt, to make it harder for attackers to
-// target servers or GUI users specifically.
-const std::string CLIENT_NAME("Satoshi");
-
CCriticalSection cs_setpwalletRegistered;
set<CWallet*> setpwalletRegistered;
CCriticalSection cs_main;
-static map<uint256, CTransaction> mapTransactions;
-CCriticalSection cs_mapTransactions;
+CTxMemPool mempool;
unsigned int nTransactionsUpdated = 0;
-map<COutPoint, CInPoint> mapNextTx;
map<uint256, CBlockIndex*> mapBlockIndex;
uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
multimap<uint256, CBlock*> mapOrphanBlocksByPrev;
map<uint256, CDataStream*> mapOrphanTransactions;
-multimap<uint256, CDataStream*> mapOrphanTransactionsByPrev;
+map<uint256, map<uint256, CDataStream*> > mapOrphanTransactionsByPrev;
// Constant stuff for coinbase transactions we create:
CScript COINBASE_FLAGS;
void RegisterWallet(CWallet* pwalletIn)
{
- CRITICAL_BLOCK(cs_setpwalletRegistered)
{
+ LOCK(cs_setpwalletRegistered);
setpwalletRegistered.insert(pwalletIn);
}
}
void UnregisterWallet(CWallet* pwalletIn)
{
- CRITICAL_BLOCK(cs_setpwalletRegistered)
{
+ LOCK(cs_setpwalletRegistered);
setpwalletRegistered.erase(pwalletIn);
}
}
// mapOrphanTransactions
//
-void AddOrphanTx(const CDataStream& vMsg)
+bool AddOrphanTx(const CDataStream& vMsg)
{
CTransaction tx;
CDataStream(vMsg) >> tx;
uint256 hash = tx.GetHash();
if (mapOrphanTransactions.count(hash))
- return;
+ return false;
+
+ CDataStream* pvMsg = new CDataStream(vMsg);
+
+ // 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.
+ // 10,000 orphans, each of which is at most 5,000 bytes big is
+ // at most 500 megabytes of orphans:
+ if (pvMsg->size() > 5000)
+ {
+ printf("ignoring large orphan tx (size: %u, hash: %s)\n", pvMsg->size(), hash.ToString().substr(0,10).c_str());
+ delete pvMsg;
+ return false;
+ }
- CDataStream* pvMsg = mapOrphanTransactions[hash] = new CDataStream(vMsg);
+ mapOrphanTransactions[hash] = pvMsg;
BOOST_FOREACH(const CTxIn& txin, tx.vin)
- mapOrphanTransactionsByPrev.insert(make_pair(txin.prevout.hash, pvMsg));
+ mapOrphanTransactionsByPrev[txin.prevout.hash].insert(make_pair(hash, pvMsg));
+
+ printf("stored orphan tx %s (mapsz %u)\n", hash.ToString().substr(0,10).c_str(),
+ mapOrphanTransactions.size());
+ return true;
}
void static EraseOrphanTx(uint256 hash)
CDataStream(*pvMsg) >> tx;
BOOST_FOREACH(const CTxIn& txin, tx.vin)
{
- for (multimap<uint256, CDataStream*>::iterator mi = mapOrphanTransactionsByPrev.lower_bound(txin.prevout.hash);
- mi != mapOrphanTransactionsByPrev.upper_bound(txin.prevout.hash);)
- {
- if ((*mi).second == pvMsg)
- mapOrphanTransactionsByPrev.erase(mi++);
- else
- mi++;
- }
+ mapOrphanTransactionsByPrev[txin.prevout.hash].erase(hash);
+ if (mapOrphanTransactionsByPrev[txin.prevout.hash].empty())
+ mapOrphanTransactionsByPrev.erase(txin.prevout.hash);
}
delete pvMsg;
mapOrphanTransactions.erase(hash);
}
-int LimitOrphanTxSize(int nMaxOrphans)
+unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans)
{
- int nEvicted = 0;
+ unsigned int nEvicted = 0;
while (mapOrphanTransactions.size() > nMaxOrphans)
{
// Evict a random orphan:
- std::vector<unsigned char> randbytes(32);
- RAND_bytes(&randbytes[0], 32);
- uint256 randomhash(randbytes);
+ uint256 randomhash = GetRandHash();
map<uint256, CDataStream*>::iterator it = mapOrphanTransactions.lower_bound(randomhash);
if (it == mapOrphanTransactions.end())
it = mapOrphanTransactions.begin();
return true;
}
-int
+unsigned int
CTransaction::GetLegacySigOpCount() const
{
- int nSigOps = 0;
+ unsigned int nSigOps = 0;
BOOST_FOREACH(const CTxIn& txin, vin)
{
nSigOps += txin.scriptSig.GetSigOpCount(false);
hashBlock = pblock->GetHash();
// Locate the transaction
- for (nIndex = 0; nIndex < pblock->vtx.size(); nIndex++)
+ for (nIndex = 0; nIndex < (int)pblock->vtx.size(); nIndex++)
if (pblock->vtx[nIndex] == *(CTransaction*)this)
break;
- if (nIndex == pblock->vtx.size())
+ if (nIndex == (int)pblock->vtx.size())
{
vMerkleBranch.clear();
nIndex = -1;
if (vout.empty())
return DoS(10, error("CTransaction::CheckTransaction() : vout empty"));
// Size limits
- if (::GetSerializeSize(*this, SER_NETWORK) > MAX_BLOCK_SIZE)
+ if (::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE)
return DoS(100, error("CTransaction::CheckTransaction() : size limits failed"));
// Check for negative or overflow output values
return true;
}
-bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMissingInputs)
+bool CTxMemPool::accept(CTxDB& txdb, CTransaction &tx, bool fCheckInputs,
+ bool* pfMissingInputs)
{
if (pfMissingInputs)
*pfMissingInputs = false;
- if (!CheckTransaction())
- return error("AcceptToMemoryPool() : CheckTransaction failed");
+ if (!tx.CheckTransaction())
+ return error("CTxMemPool::accept() : CheckTransaction failed");
// Coinbase is only valid in a block, not as a loose transaction
- if (IsCoinBase())
- return DoS(100, error("AcceptToMemoryPool() : coinbase as individual tx"));
+ if (tx.IsCoinBase())
+ return tx.DoS(100, error("CTxMemPool::accept() : coinbase as individual tx"));
// To help v0.1.5 clients who would see it as a negative number
- if ((int64)nLockTime > std::numeric_limits<int>::max())
- return error("AcceptToMemoryPool() : not accepting nLockTime beyond 2038 yet");
+ if ((int64)tx.nLockTime > std::numeric_limits<int>::max())
+ return error("CTxMemPool::accept() : not accepting nLockTime beyond 2038 yet");
// Rather not work on nonstandard transactions (unless -testnet)
- if (!fTestNet && !IsStandard())
- return error("AcceptToMemoryPool() : nonstandard transaction type");
+ if (!fTestNet && !tx.IsStandard())
+ return error("CTxMemPool::accept() : nonstandard transaction type");
// Do we already have it?
- uint256 hash = GetHash();
- CRITICAL_BLOCK(cs_mapTransactions)
- if (mapTransactions.count(hash))
+ uint256 hash = tx.GetHash();
+ {
+ LOCK(cs);
+ if (mapTx.count(hash))
return false;
+ }
if (fCheckInputs)
if (txdb.ContainsTx(hash))
return false;
// Check for conflicts with in-memory transactions
CTransaction* ptxOld = NULL;
- for (unsigned int i = 0; i < vin.size(); i++)
+ for (unsigned int i = 0; i < tx.vin.size(); i++)
{
- COutPoint outpoint = vin[i].prevout;
+ COutPoint outpoint = tx.vin[i].prevout;
if (mapNextTx.count(outpoint))
{
// Disable replacement feature for now
ptxOld = mapNextTx[outpoint].ptx;
if (ptxOld->IsFinal())
return false;
- if (!IsNewerThan(*ptxOld))
+ if (!tx.IsNewerThan(*ptxOld))
return false;
- for (unsigned int i = 0; i < vin.size(); i++)
+ for (unsigned int i = 0; i < tx.vin.size(); i++)
{
- COutPoint outpoint = vin[i].prevout;
+ COutPoint outpoint = tx.vin[i].prevout;
if (!mapNextTx.count(outpoint) || mapNextTx[outpoint].ptx != ptxOld)
return false;
}
MapPrevTx mapInputs;
map<uint256, CTxIndex> mapUnused;
bool fInvalid = false;
- if (!FetchInputs(txdb, mapUnused, false, false, mapInputs, fInvalid))
+ if (!tx.FetchInputs(txdb, mapUnused, false, false, mapInputs, fInvalid))
{
if (fInvalid)
- return error("AcceptToMemoryPool() : FetchInputs found invalid tx %s", hash.ToString().substr(0,10).c_str());
+ return error("CTxMemPool::accept() : FetchInputs found invalid tx %s", hash.ToString().substr(0,10).c_str());
if (pfMissingInputs)
*pfMissingInputs = true;
- return error("AcceptToMemoryPool() : FetchInputs failed %s", hash.ToString().substr(0,10).c_str());
+ return error("CTxMemPool::accept() : FetchInputs failed %s", hash.ToString().substr(0,10).c_str());
}
// Check for non-standard pay-to-script-hash in inputs
- if (!AreInputsStandard(mapInputs) && !fTestNet)
- return error("AcceptToMemoryPool() : nonstandard transaction input");
+ if (!tx.AreInputsStandard(mapInputs) && !fTestNet)
+ return error("CTxMemPool::accept() : nonstandard transaction input");
// Note: if you modify this code to accept non-standard transactions, then
// you should add code here to check that the transaction does a
// reasonable number of ECDSA signature verifications.
- int64 nFees = GetValueIn(mapInputs)-GetValueOut();
- unsigned int nSize = ::GetSerializeSize(*this, SER_NETWORK);
+ int64 nFees = tx.GetValueIn(mapInputs)-tx.GetValueOut();
+ unsigned int nSize = ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION);
// Don't accept it if it can't get into a block
- if (nFees < GetMinFee(1000, true, GMF_RELAY))
- return error("AcceptToMemoryPool() : not enough fees");
+ if (nFees < tx.GetMinFee(1000, true, GMF_RELAY))
+ return error("CTxMemPool::accept() : not enough fees");
// Continuously rate-limit free transactions
// This mitigates 'penny-flooding' -- sending thousands of free transactions just to
static int64 nLastTime;
int64 nNow = GetTime();
- CRITICAL_BLOCK(cs)
{
+ LOCK(cs);
// Use an exponentially decaying ~10-minute window:
dFreeCount *= pow(1.0 - 1.0/600.0, (double)(nNow - nLastTime));
nLastTime = nNow;
// -limitfreerelay unit is thousand-bytes-per-minute
// At default rate it would take over a month to fill 1GB
- if (dFreeCount > GetArg("-limitfreerelay", 15)*10*1000 && !IsFromMe(*this))
- return error("AcceptToMemoryPool() : free transaction rejected by rate limiter");
+ if (dFreeCount > GetArg("-limitfreerelay", 15)*10*1000 && !IsFromMe(tx))
+ return error("CTxMemPool::accept() : free transaction rejected by rate limiter");
if (fDebug)
printf("Rate limit dFreeCount: %g => %g\n", dFreeCount, dFreeCount+nSize);
dFreeCount += nSize;
// Check against previous transactions
// This is done last to help prevent CPU exhaustion denial-of-service attacks.
- if (!ConnectInputs(mapInputs, mapUnused, CDiskTxPos(1,1,1), pindexBest, false, false))
+ if (!tx.ConnectInputs(mapInputs, mapUnused, CDiskTxPos(1,1,1), pindexBest, false, false))
{
- return error("AcceptToMemoryPool() : ConnectInputs failed %s", hash.ToString().substr(0,10).c_str());
+ return error("CTxMemPool::accept() : ConnectInputs failed %s", hash.ToString().substr(0,10).c_str());
}
}
// Store transaction in memory
- CRITICAL_BLOCK(cs_mapTransactions)
{
+ LOCK(cs);
if (ptxOld)
{
- printf("AcceptToMemoryPool() : replacing tx %s with new version\n", ptxOld->GetHash().ToString().c_str());
- ptxOld->RemoveFromMemoryPool();
+ printf("CTxMemPool::accept() : replacing tx %s with new version\n", ptxOld->GetHash().ToString().c_str());
+ remove(*ptxOld);
}
- AddToMemoryPoolUnchecked();
+ addUnchecked(tx);
}
///// are we sure this is ok when loading transactions or restoring block txes
if (ptxOld)
EraseFromWallets(ptxOld->GetHash());
- printf("AcceptToMemoryPool(): accepted %s\n", hash.ToString().substr(0,10).c_str());
+ printf("CTxMemPool::accept() : accepted %s\n", hash.ToString().substr(0,10).c_str());
return true;
}
-bool CTransaction::AcceptToMemoryPool(bool fCheckInputs, bool* pfMissingInputs)
+bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMissingInputs)
{
- CTxDB txdb("r");
- return AcceptToMemoryPool(txdb, fCheckInputs, pfMissingInputs);
+ return mempool.accept(txdb, *this, fCheckInputs, pfMissingInputs);
}
-uint64 nPooledTx = 0;
-
-bool CTransaction::AddToMemoryPoolUnchecked()
+bool CTxMemPool::addUnchecked(CTransaction &tx)
{
- printf("AcceptToMemoryPoolUnchecked(): size %lu\n", mapTransactions.size());
+ printf("addUnchecked(): size %lu\n", mapTx.size());
// Add to memory pool without checking anything. Don't call this directly,
- // call AcceptToMemoryPool to properly check the transaction first.
- CRITICAL_BLOCK(cs_mapTransactions)
+ // call CTxMemPool::accept to properly check the transaction first.
{
- uint256 hash = GetHash();
- mapTransactions[hash] = *this;
- for (unsigned int i = 0; i < vin.size(); i++)
- mapNextTx[vin[i].prevout] = CInPoint(&mapTransactions[hash], i);
+ LOCK(cs);
+ uint256 hash = tx.GetHash();
+ mapTx[hash] = tx;
+ for (unsigned int i = 0; i < tx.vin.size(); i++)
+ mapNextTx[tx.vin[i].prevout] = CInPoint(&mapTx[hash], i);
nTransactionsUpdated++;
- ++nPooledTx;
}
return true;
}
-bool CTransaction::RemoveFromMemoryPool()
+bool CTxMemPool::remove(CTransaction &tx)
{
// Remove transaction from memory pool
- CRITICAL_BLOCK(cs_mapTransactions)
{
- uint256 hash = GetHash();
- if (mapTransactions.count(hash))
+ LOCK(cs);
+ uint256 hash = tx.GetHash();
+ if (mapTx.count(hash))
{
- BOOST_FOREACH(const CTxIn& txin, vin)
+ BOOST_FOREACH(const CTxIn& txin, tx.vin)
mapNextTx.erase(txin.prevout);
- mapTransactions.erase(hash);
+ mapTx.erase(hash);
nTransactionsUpdated++;
- --nPooledTx;
}
}
return true;
bool CWalletTx::AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs)
{
- CRITICAL_BLOCK(cs_mapTransactions)
+
{
+ LOCK(mempool.cs);
// Add previous supporting transactions first
BOOST_FOREACH(CMerkleTx& tx, vtxPrev)
{
if (!tx.IsCoinBase())
{
uint256 hash = tx.GetHash();
- if (!mapTransactions.count(hash) && !txdb.ContainsTx(hash))
+ if (!mempool.exists(hash) && !txdb.ContainsTx(hash))
tx.AcceptToMemoryPool(txdb, fCheckInputs);
}
}
return false;
}
-bool CWalletTx::AcceptWalletTransaction()
+bool CWalletTx::AcceptWalletTransaction()
{
CTxDB txdb("r");
return AcceptWalletTransaction(txdb);
if (!fFound || txindex.pos == CDiskTxPos(1,1,1))
{
// Get prev tx from single transactions in memory
- CRITICAL_BLOCK(cs_mapTransactions)
{
- if (!mapTransactions.count(prevout.hash))
- return error("FetchInputs() : %s mapTransactions prev not found %s", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
- txPrev = mapTransactions[prevout.hash];
+ LOCK(mempool.cs);
+ if (!mempool.exists(prevout.hash))
+ return error("FetchInputs() : %s mempool Tx prev not found %s", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
+ txPrev = mempool.lookup(prevout.hash);
}
if (!fFound)
txindex.vSpent.resize(txPrev.vout.size());
}
-int CTransaction::GetP2SHSigOpCount(const MapPrevTx& inputs) const
+unsigned int CTransaction::GetP2SHSigOpCount(const MapPrevTx& inputs) const
{
if (IsCoinBase())
return 0;
- int nSigOps = 0;
+ unsigned int nSigOps = 0;
for (unsigned int i = 0; i < vin.size(); i++)
{
const CTxOut& prevout = GetOutputFor(vin[i], inputs);
if (pindex->nBlockPos == txindex.pos.nBlockPos && pindex->nFile == txindex.pos.nFile)
return error("ConnectInputs() : tried to spend coinbase at depth %d", pindexBlock->nHeight - pindex->nHeight);
+ // Check for negative or overflow input values
+ nValueIn += txPrev.vout[prevout.n].nValue;
+ if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
+ return DoS(100, error("ConnectInputs() : txin values out of range"));
+
+ }
+ // The first loop above does all the inexpensive checks.
+ // Only if ALL inputs pass do we perform expensive ECDSA signature checks.
+ // Helps prevent CPU exhaustion attacks.
+ for (unsigned int i = 0; i < vin.size(); i++)
+ {
+ COutPoint prevout = vin[i].prevout;
+ assert(inputs.count(prevout.hash) > 0);
+ CTxIndex& txindex = inputs[prevout.hash].first;
+ CTransaction& txPrev = inputs[prevout.hash].second;
+
// Check for conflicts (double-spend)
// This doesn't trigger the DoS code on purpose; if it did, it would make it easier
// for an attacker to attempt to split the network.
if (!txindex.vSpent[prevout.n].IsNull())
return fMiner ? false : error("ConnectInputs() : %s prev tx already used at %s", GetHash().ToString().substr(0,10).c_str(), txindex.vSpent[prevout.n].ToString().c_str());
- // Check for negative or overflow input values
- nValueIn += txPrev.vout[prevout.n].nValue;
- if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
- return DoS(100, error("ConnectInputs() : txin values out of range"));
-
// Skip ECDSA signature verification when connecting blocks (fBlock=true)
// before the last blockchain checkpoint. This is safe because block merkle hashes are
// still computed and checked, and any change will be caught at the next checkpoint.
return false;
// Take over previous transactions' spent pointers
- CRITICAL_BLOCK(cs_mapTransactions)
{
+ LOCK(mempool.cs);
int64 nValueIn = 0;
for (unsigned int i = 0; i < vin.size(); i++)
{
// Get prev tx from single transactions in memory
COutPoint prevout = vin[i].prevout;
- if (!mapTransactions.count(prevout.hash))
+ if (!mempool.exists(prevout.hash))
return false;
- CTransaction& txPrev = mapTransactions[prevout.hash];
+ CTransaction& txPrev = mempool.lookup(prevout.hash);
if (prevout.n >= txPrev.vout.size())
return false;
if (!VerifySignature(txPrev, *this, i, true, 0))
return error("ConnectInputs() : VerifySignature failed");
- ///// this is redundant with the mapNextTx stuff, not sure which I want to get rid of
+ ///// this is redundant with the mempool.mapNextTx stuff,
+ ///// not sure which I want to get rid of
///// this has to go away now that posNext is gone
// // Check for conflicts
// if (!txPrev.vout[prevout.n].posNext.IsNull())
bool fStrictPayToScriptHash = (pindex->nTime >= nBIP16SwitchTime);
//// issue here: it doesn't know the version
- unsigned int nTxPos = pindex->nBlockPos + ::GetSerializeSize(CBlock(), SER_DISK) - 1 + GetSizeOfCompactSize(vtx.size());
+ unsigned int nTxPos = pindex->nBlockPos + ::GetSerializeSize(CBlock(), SER_DISK, CLIENT_VERSION) - 1 + GetSizeOfCompactSize(vtx.size());
map<uint256, CTxIndex> mapQueuedChanges;
int64 nFees = 0;
- int nSigOps = 0;
+ unsigned int nSigOps = 0;
BOOST_FOREACH(CTransaction& tx, vtx)
{
nSigOps += tx.GetLegacySigOpCount();
return DoS(100, error("ConnectBlock() : too many sigops"));
CDiskTxPos posThisTx(pindex->nFile, pindex->nBlockPos, nTxPos);
- nTxPos += ::GetSerializeSize(tx, SER_DISK);
+ nTxPos += ::GetSerializeSize(tx, SER_DISK, CLIENT_VERSION);
MapPrevTx mapInputs;
if (!tx.IsCoinBase())
// Delete redundant memory transactions that are in the connected branch
BOOST_FOREACH(CTransaction& tx, vDelete)
- tx.RemoveFromMemoryPool();
+ mempool.remove(tx);
printf("REORGANIZE: done\n");
// Delete redundant memory transactions
BOOST_FOREACH(CTransaction& tx, vtx)
- tx.RemoveFromMemoryPool();
+ mempool.remove(tx);
return true;
}
// that can be verified before saving an orphan block.
// Size limits
- if (vtx.empty() || vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(*this, SER_NETWORK) > MAX_BLOCK_SIZE)
+ if (vtx.empty() || vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE)
return DoS(100, error("CheckBlock() : size limits failed"));
// Check proof of work matches claimed amount
if (uniqueTx.size() != vtx.size())
return DoS(100, error("CheckBlock() : duplicate transaction"));
- int nSigOps = 0;
+ unsigned int nSigOps = 0;
BOOST_FOREACH(const CTransaction& tx, vtx)
{
nSigOps += tx.GetLegacySigOpCount();
return DoS(100, error("AcceptBlock() : rejected by checkpoint lockin at %d", nHeight));
// Write block to history file
- if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK)))
+ if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK, CLIENT_VERSION)))
return error("AcceptBlock() : out of disk space");
unsigned int nFile = -1;
unsigned int nBlockPos = 0;
// Relay inventory, but don't relay old inventory during initial block download
int nBlockEstimate = Checkpoints::GetTotalBlocksEstimate();
if (hashBestChain == hash)
- CRITICAL_BLOCK(cs_vNodes)
- BOOST_FOREACH(CNode* pnode, vNodes)
- if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : nBlockEstimate))
- pnode->PushInventory(CInv(MSG_BLOCK, hash));
+ {
+ LOCK(cs_vNodes);
+ BOOST_FOREACH(CNode* pnode, vNodes)
+ if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : nBlockEstimate))
+ pnode->PushInventory(CInv(MSG_BLOCK, hash));
+ }
return true;
}
if (nFreeBytesAvailable < (uint64)15000000 + nAdditionalBytes)
{
fShutdown = true;
- string strMessage = _("Warning: Disk space is low ");
+ string strMessage = _("Warning: Disk space is low");
strMiscWarning = strMessage;
printf("*** %s\n", strMessage.c_str());
- ThreadSafeMessageBox(strMessage, "Bitcoin", wxOK | wxICON_EXCLAMATION);
- CreateThread(Shutdown, NULL);
+ ThreadSafeMessageBox(strMessage, "Bitcoin", wxOK | wxICON_EXCLAMATION | wxMODAL);
+ StartShutdown();
return false;
}
return true;
{
if (nFile == -1)
return NULL;
- FILE* file = fopen(strprintf("%s/blk%04d.dat", GetDataDir().c_str(), nFile).c_str(), pszMode);
+ FILE* file = fopen((GetDataDir() / strprintf("blk%04d.dat", nFile)).string().c_str(), pszMode);
if (!file)
return NULL;
if (nBlockPos != 0 && !strchr(pszMode, 'a') && !strchr(pszMode, 'w'))
}
// Alerts
- CRITICAL_BLOCK(cs_mapAlerts)
{
+ LOCK(cs_mapAlerts);
BOOST_FOREACH(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
{
const CAlert& alert = item.second;
if (!IsInEffect())
return false;
- CRITICAL_BLOCK(cs_mapAlerts)
{
+ LOCK(cs_mapAlerts);
// Cancel previous alerts
for (map<uint256, CAlert>::iterator mi = mapAlerts.begin(); mi != mapAlerts.end();)
{
case MSG_TX:
{
bool txInMap = false;
- CRITICAL_BLOCK(cs_mapTransactions)
- {
- txInMap = (mapTransactions.count(inv.hash) != 0);
- }
+ {
+ LOCK(mempool.cs);
+ txInMap = (mempool.exists(inv.hash));
+ }
return txInMap ||
mapOrphanTransactions.count(inv.hash) ||
txdb.ContainsTx(inv.hash);
}
- case MSG_BLOCK: return mapBlockIndex.count(inv.hash) || mapOrphanBlocks.count(inv.hash);
+ case MSG_BLOCK:
+ return mapBlockIndex.count(inv.hash) ||
+ mapOrphanBlocks.count(inv.hash);
}
// Don't know what it is, just say we already got one
return true;
CAddress addrFrom;
uint64 nNonce = 1;
vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe;
- if (pfrom->nVersion < 209)
+ if (pfrom->nVersion < MIN_PROTO_VERSION)
{
// Since February 20, 2012, the protocol is initiated at version 209,
// and earlier versions are no longer supported
}
// Get recent addresses
- if (pfrom->nVersion >= 31402 || addrman.size() < 1000)
+ if (pfrom->nVersion >= CADDR_TIME_VERSION || addrman.size() < 1000)
{
pfrom->PushMessage("getaddr");
pfrom->fGetAddr = true;
// Ask the first connected node for block updates
static int nAskedForBlocks = 0;
if (!pfrom->fClient &&
- (pfrom->nVersion < 32000 || pfrom->nVersion >= 32400) &&
+ (pfrom->nVersion < NOBLKS_VERSION_START ||
+ pfrom->nVersion >= NOBLKS_VERSION_END) &&
(nAskedForBlocks < 1 || vNodes.size() <= 1))
{
nAskedForBlocks++;
}
// Relay alerts
- CRITICAL_BLOCK(cs_mapAlerts)
+ {
+ LOCK(cs_mapAlerts);
BOOST_FOREACH(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
item.second.RelayTo(pfrom);
+ }
pfrom->fSuccessfullyConnected = true;
vRecv >> vAddr;
// Don't want addr from older versions unless seeding
- if (pfrom->nVersion < 31402 && addrman.size() > 1000)
+ if (pfrom->nVersion < CADDR_TIME_VERSION && addrman.size() > 1000)
return true;
if (vAddr.size() > 1000)
{
if (addr.nTime > nSince && !pfrom->fGetAddr && vAddr.size() <= 10 && addr.IsRoutable())
{
// Relay to a limited number of other nodes
- CRITICAL_BLOCK(cs_vNodes)
{
+ LOCK(cs_vNodes);
// Use deterministic randomness to send to the same nodes for 24 hours
// at a time so the setAddrKnowns of the chosen nodes prevent repeats
static uint256 hashSalt;
if (hashSalt == 0)
- RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
+ hashSalt = GetRandHash();
int64 hashAddr = addr.GetHash();
uint256 hashRand = hashSalt ^ (hashAddr<<32) ^ ((GetTime()+hashAddr)/(24*60*60));
hashRand = Hash(BEGIN(hashRand), END(hashRand));
multimap<uint256, CNode*> mapMix;
BOOST_FOREACH(CNode* pnode, vNodes)
{
- if (pnode->nVersion < 31402)
+ if (pnode->nVersion < CADDR_TIME_VERSION)
continue;
unsigned int nPointer;
memcpy(&nPointer, &pnode, sizeof(nPointer));
// find last block in inv vector
unsigned int nLastBlock = (unsigned int)(-1);
for (unsigned int nInv = 0; nInv < vInv.size(); nInv++) {
- if (vInv[vInv.size() - 1 - nInv].type == MSG_BLOCK)
+ if (vInv[vInv.size() - 1 - nInv].type == MSG_BLOCK) {
nLastBlock = vInv.size() - 1 - nInv;
+ break;
+ }
}
CTxDB txdb("r");
for (unsigned int nInv = 0; nInv < vInv.size(); nInv++)
if (fDebug)
printf(" got inventory: %s %s\n", inv.ToString().c_str(), fAlreadyHave ? "have" : "new");
- // Always request the last block in an inv bundle (even if we already have it), as it is the
- // trigger for the other side to send further invs. If we are stuck on a (very long) side chain,
- // this is necessary to connect earlier received orphan blocks to the chain again.
- if (fAlreadyHave && nInv == nLastBlock) {
- // bypass mapAskFor, and send request directly; it must go through.
- std::vector<CInv> vGetData(1,inv);
- pfrom->PushMessage("getdata", vGetData);
- }
-
if (!fAlreadyHave)
pfrom->AskFor(inv);
- else if (inv.type == MSG_BLOCK && mapOrphanBlocks.count(inv.hash))
+ else if (inv.type == MSG_BLOCK && mapOrphanBlocks.count(inv.hash)) {
pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(mapOrphanBlocks[inv.hash]));
+ } else if (nInv == nLastBlock) {
+ // In case we are on a very long side-chain, it is possible that we already have
+ // the last block in an inv bundle sent in response to getblocks. Try to detect
+ // this situation and push another getblocks to continue.
+ std::vector<CInv> vGetData(1,inv);
+ pfrom->PushGetBlocks(mapBlockIndex[inv.hash], uint256(0));
+ if (fDebug)
+ printf("force request: %s\n", inv.ToString().c_str());
+ }
// Track requests for our stuff
Inventory(inv.hash);
else if (inv.IsKnownType())
{
// Send stream from relay memory
- CRITICAL_BLOCK(cs_mapRelay)
{
+ LOCK(cs_mapRelay);
map<CInv, CDataStream>::iterator mi = mapRelay.find(inv);
if (mi != mapRelay.end())
pfrom->PushMessage(inv.GetCommand(), (*mi).second);
pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));
CBlock block;
block.ReadFromDisk(pindex, true);
- nBytes += block.GetSerializeSize(SER_NETWORK);
+ nBytes += block.GetSerializeSize(SER_NETWORK, PROTOCOL_VERSION);
if (--nLimit <= 0 || nBytes >= SendBufferSize()/2)
{
// When this block is requested, we'll send an inv that'll make them
}
vector<CBlock> vHeaders;
- int nLimit = 2000 + locator.GetDistanceBack();
- printf("getheaders %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit);
+ int nLimit = 2000;
+ printf("getheaders %d to %s\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str());
for (; pindex; pindex = pindex->pnext)
{
vHeaders.push_back(pindex->GetBlockHeader());
else if (strCommand == "tx")
{
vector<uint256> vWorkQueue;
+ vector<uint256> vEraseQueue;
CDataStream vMsg(vRecv);
+ CTxDB txdb("r");
CTransaction tx;
vRecv >> tx;
pfrom->AddInventoryKnown(inv);
bool fMissingInputs = false;
- if (tx.AcceptToMemoryPool(true, &fMissingInputs))
+ if (tx.AcceptToMemoryPool(txdb, true, &fMissingInputs))
{
SyncWithWallets(tx, NULL, true);
RelayMessage(inv, vMsg);
mapAlreadyAskedFor.erase(inv);
vWorkQueue.push_back(inv.hash);
+ vEraseQueue.push_back(inv.hash);
// Recursively process any orphan transactions that depended on this one
for (unsigned int i = 0; i < vWorkQueue.size(); i++)
{
uint256 hashPrev = vWorkQueue[i];
- for (multimap<uint256, CDataStream*>::iterator mi = mapOrphanTransactionsByPrev.lower_bound(hashPrev);
- mi != mapOrphanTransactionsByPrev.upper_bound(hashPrev);
+ for (map<uint256, CDataStream*>::iterator mi = mapOrphanTransactionsByPrev[hashPrev].begin();
+ mi != mapOrphanTransactionsByPrev[hashPrev].end();
++mi)
{
const CDataStream& vMsg = *((*mi).second);
CTransaction tx;
CDataStream(vMsg) >> tx;
CInv inv(MSG_TX, tx.GetHash());
+ bool fMissingInputs2 = false;
- if (tx.AcceptToMemoryPool(true))
+ if (tx.AcceptToMemoryPool(txdb, true, &fMissingInputs2))
{
printf(" accepted orphan tx %s\n", inv.hash.ToString().substr(0,10).c_str());
SyncWithWallets(tx, NULL, true);
RelayMessage(inv, vMsg);
mapAlreadyAskedFor.erase(inv);
vWorkQueue.push_back(inv.hash);
+ vEraseQueue.push_back(inv.hash);
+ }
+ else if (!fMissingInputs2)
+ {
+ // invalid orphan
+ vEraseQueue.push_back(inv.hash);
+ printf(" removed invalid orphan tx %s\n", inv.hash.ToString().substr(0,10).c_str());
}
}
}
- BOOST_FOREACH(uint256 hash, vWorkQueue)
+ BOOST_FOREACH(uint256 hash, vEraseQueue)
EraseOrphanTx(hash);
}
else if (fMissingInputs)
{
- printf("storing orphan tx %s\n", inv.hash.ToString().substr(0,10).c_str());
AddOrphanTx(vMsg);
// DoS prevention: do not allow mapOrphanTransactions to grow unbounded
- int nEvicted = LimitOrphanTxSize(MAX_ORPHAN_TRANSACTIONS);
+ unsigned int nEvicted = LimitOrphanTxSize(MAX_ORPHAN_TRANSACTIONS);
if (nEvicted > 0)
- printf("mapOrphan overflow, removed %d tx\n", nEvicted);
+ printf("mapOrphan overflow, removed %u tx\n", nEvicted);
}
if (tx.nDoS) pfrom->Misbehaving(tx.nDoS);
}
vRecv >> hashReply;
CRequestTracker tracker;
- CRITICAL_BLOCK(pfrom->cs_mapRequests)
{
+ LOCK(pfrom->cs_mapRequests);
map<uint256, CRequestTracker>::iterator mi = pfrom->mapRequests.find(hashReply);
if (mi != pfrom->mapRequests.end())
{
else if (strCommand == "ping")
{
+ if (pfrom->nVersion > BIP0031_VERSION)
+ {
+ uint64 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.
+ pfrom->PushMessage("pong", nonce);
+ }
}
{
// Relay
pfrom->setKnown.insert(alert.GetHash());
- CRITICAL_BLOCK(cs_vNodes)
+ {
+ LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes)
alert.RelayTo(pnode);
+ }
}
}
int nHeaderSize = vRecv.GetSerializeSize(CMessageHeader());
if (vRecv.end() - pstart < nHeaderSize)
{
- if (vRecv.size() > nHeaderSize)
+ if ((int)vRecv.size() > nHeaderSize)
{
printf("\n\nPROCESSMESSAGE MESSAGESTART NOT FOUND\n\n");
vRecv.erase(vRecv.begin(), vRecv.end() - nHeaderSize);
unsigned int nMessageSize = hdr.nMessageSize;
if (nMessageSize > MAX_SIZE)
{
- printf("ProcessMessage(%s, %u bytes) : nMessageSize > MAX_SIZE\n", strCommand.c_str(), nMessageSize);
+ printf("ProcessMessages(%s, %u bytes) : nMessageSize > MAX_SIZE\n", strCommand.c_str(), nMessageSize);
continue;
}
if (nMessageSize > vRecv.size())
memcpy(&nChecksum, &hash, sizeof(nChecksum));
if (nChecksum != hdr.nChecksum)
{
- printf("ProcessMessage(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
+ printf("ProcessMessages(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
continue;
}
bool fRet = false;
try
{
- CRITICAL_BLOCK(cs_main)
+ {
+ LOCK(cs_main);
fRet = ProcessMessage(pfrom, strCommand, vMsg);
+ }
if (fShutdown)
return true;
}
if (strstr(e.what(), "end of data"))
{
// Allow exceptions from underlength message on vRecv
- printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand.c_str(), nMessageSize, e.what());
+ printf("ProcessMessages(%s, %u bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand.c_str(), nMessageSize, e.what());
}
else if (strstr(e.what(), "size too large"))
{
// Allow exceptions from overlong size
- printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
+ printf("ProcessMessages(%s, %u bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
}
else
{
- PrintExceptionContinue(&e, "ProcessMessage()");
+ PrintExceptionContinue(&e, "ProcessMessages()");
}
}
catch (std::exception& e) {
- PrintExceptionContinue(&e, "ProcessMessage()");
+ PrintExceptionContinue(&e, "ProcessMessages()");
} catch (...) {
- PrintExceptionContinue(NULL, "ProcessMessage()");
+ PrintExceptionContinue(NULL, "ProcessMessages()");
}
if (!fRet)
bool SendMessages(CNode* pto, bool fSendTrickle)
{
- TRY_CRITICAL_BLOCK(cs_main)
- {
+ TRY_LOCK(cs_main, lockMain);
+ if (lockMain) {
// Don't send anything until we get their version message
if (pto->nVersion == 0)
return true;
- // Keep-alive ping
- if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty())
- pto->PushMessage("ping");
+ // Keep-alive ping. We send a nonce of zero because we don't use it anywhere
+ // right now.
+ if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty()) {
+ uint64 nonce = 0;
+ if (pto->nVersion > BIP0031_VERSION)
+ pto->PushMessage("ping", nonce);
+ else
+ pto->PushMessage("ping");
+ }
// Resend wallet transactions that haven't gotten in a block yet
ResendWalletTransactions();
static int64 nLastRebroadcast;
if (!IsInitialBlockDownload() && (GetTime() - nLastRebroadcast > 24 * 60 * 60))
{
- CRITICAL_BLOCK(cs_vNodes)
{
+ LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes)
{
// Periodically clear setAddrKnown to allow refresh broadcasts
//
vector<CInv> vInv;
vector<CInv> vInvWait;
- CRITICAL_BLOCK(pto->cs_inventory)
{
+ LOCK(pto->cs_inventory);
vInv.reserve(pto->vInventoryToSend.size());
vInvWait.reserve(pto->vInventoryToSend.size());
BOOST_FOREACH(const CInv& inv, pto->vInventoryToSend)
// 1/4 of tx invs blast to all immediately
static uint256 hashSalt;
if (hashSalt == 0)
- RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
+ hashSalt = GetRandHash();
uint256 hashRand = inv.hash ^ hashSalt;
hashRand = Hash(BEGIN(hashRand), END(hashRand));
bool fTrickleWait = ((hashRand & 3) != 0);
ctx.h[i] = ((uint32_t*)pinit)[i];
SHA256_Update(&ctx, data, sizeof(data));
- for (int i = 0; i < 8; i++)
+ for (int i = 0; i < 8; i++)
((uint32_t*)pstate)[i] = ctx.h[i];
}
if ((nNonce & 0xffff) == 0)
{
nHashesDone = 0xffff+1;
- return -1;
+ return (unsigned int) -1;
}
}
}
// Collect memory pool transactions into the block
int64 nFees = 0;
- CRITICAL_BLOCK(cs_main)
- CRITICAL_BLOCK(cs_mapTransactions)
{
+ LOCK2(cs_main, mempool.cs);
CTxDB txdb("r");
// Priority order to process transactions
list<COrphan> vOrphan; // list memory doesn't move
map<uint256, vector<COrphan*> > mapDependers;
multimap<double, CTransaction*> mapPriority;
- for (map<uint256, CTransaction>::iterator mi = mapTransactions.begin(); mi != mapTransactions.end(); ++mi)
+ for (map<uint256, CTransaction>::iterator mi = mempool.mapTx.begin(); mi != mempool.mapTx.end(); ++mi)
{
CTransaction& tx = (*mi).second;
if (tx.IsCoinBase() || !tx.IsFinal())
}
// Priority is sum(valuein * age) / txsize
- dPriority /= ::GetSerializeSize(tx, SER_NETWORK);
+ dPriority /= ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION);
if (porphan)
porphan->dPriority = dPriority;
mapPriority.erase(mapPriority.begin());
// Size limits
- unsigned int nTxSize = ::GetSerializeSize(tx, SER_NETWORK);
+ unsigned int nTxSize = ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION);
if (nBlockSize + nTxSize >= MAX_BLOCK_SIZE_GEN)
continue;
// Legacy limits on sigOps:
- int nTxSigOps = tx.GetLegacySigOpCount();
+ unsigned int nTxSigOps = tx.GetLegacySigOpCount();
if (nBlockSigOps + nTxSigOps >= MAX_BLOCK_SIGOPS)
continue;
printf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue).c_str());
// Found a solution
- CRITICAL_BLOCK(cs_main)
{
+ LOCK(cs_main);
if (pblock->hashPrevBlock != hashBestChain)
return error("BitcoinMiner : generated block is stale");
reservekey.KeepKey();
// Track how many getdata requests this block gets
- CRITICAL_BLOCK(wallet.cs_wallet)
+ {
+ LOCK(wallet.cs_wallet);
wallet.mapRequestCount[pblock->GetHash()] = 0;
+ }
// Process this block the same as if we had received it from another node
if (!ProcessBlock(NULL, pblock))
while (fGenerateBitcoins)
{
- if (AffinityBugWorkaround(ThreadBitcoinMiner))
- return;
if (fShutdown)
return;
while (vNodes.empty() || IsInitialBlockDownload())
(char*)&hash, nHashesDone);
// Check if something found
- if (nNonceFound != -1)
+ if (nNonceFound != (unsigned int) -1)
{
for (unsigned int i = 0; i < sizeof(hash)/4; i++)
((unsigned int*)&hash)[i] = ByteReverse(((unsigned int*)&hash)[i]);
if (GetTimeMillis() - nHPSTimerStart > 4000)
{
static CCriticalSection cs;
- CRITICAL_BLOCK(cs)
{
+ LOCK(cs);
if (GetTimeMillis() - nHPSTimerStart > 4000)
{
dHashesPerSec = 1000.0 * nHashCounter / (GetTimeMillis() - nHPSTimerStart);
nHPSTimerStart = GetTimeMillis();
nHashCounter = 0;
- string strStatus = strprintf(" %.0f khash/s", dHashesPerSec/1000.0);
- UIThreadCall(boost::bind(CalledSetStatusBar, strStatus, 0));
static int64 nLogTime;
if (GetTime() - nLogTime > 30 * 60)
{
vnThreadsRunning[THREAD_MINER]--;
PrintException(NULL, "ThreadBitcoinMiner()");
}
- UIThreadCall(boost::bind(CalledSetStatusBar, "", 0));
nHPSTimerStart = 0;
if (vnThreadsRunning[THREAD_MINER] == 0)
dHashesPerSec = 0;
git://git.novaco.in / novacoin.git / blobdiff