diff options
Diffstat (limited to 'src/net_processing.cpp')
-rw-r--r-- | src/net_processing.cpp | 106 |
1 files changed, 59 insertions, 47 deletions
diff --git a/src/net_processing.cpp b/src/net_processing.cpp index 82b09f5f14..20426eaceb 100644 --- a/src/net_processing.cpp +++ b/src/net_processing.cpp @@ -3,34 +3,32 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. -#include "net_processing.h" - -#include "addrman.h" -#include "arith_uint256.h" -#include "blockencodings.h" -#include "chainparams.h" -#include "consensus/validation.h" -#include "hash.h" -#include "init.h" -#include "validation.h" -#include "merkleblock.h" -#include "net.h" -#include "netmessagemaker.h" -#include "netbase.h" -#include "policy/fees.h" -#include "policy/policy.h" -#include "primitives/block.h" -#include "primitives/transaction.h" -#include "random.h" -#include "reverse_iterator.h" -#include "scheduler.h" -#include "tinyformat.h" -#include "txmempool.h" -#include "ui_interface.h" -#include "util.h" -#include "utilmoneystr.h" -#include "utilstrencodings.h" -#include "validationinterface.h" +#include <net_processing.h> + +#include <addrman.h> +#include <arith_uint256.h> +#include <blockencodings.h> +#include <chainparams.h> +#include <consensus/validation.h> +#include <hash.h> +#include <init.h> +#include <validation.h> +#include <merkleblock.h> +#include <netmessagemaker.h> +#include <netbase.h> +#include <policy/fees.h> +#include <policy/policy.h> +#include <primitives/block.h> +#include <primitives/transaction.h> +#include <random.h> +#include <reverse_iterator.h> +#include <scheduler.h> +#include <tinyformat.h> +#include <txmempool.h> +#include <ui_interface.h> +#include <util.h> +#include <utilmoneystr.h> +#include <utilstrencodings.h> #if defined(NDEBUG) # error "Bitcoin cannot be compiled without assertions." @@ -1078,7 +1076,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam } send = BlockRequestAllowed(mi->second, consensusParams); if (!send) { - LogPrintf("%s: ignoring request from peer=%i for old block that isn't in the main chain\n", __func__, pfrom->GetId()); + LogPrint(BCLog::NET, "%s: ignoring request from peer=%i for old block that isn't in the main chain\n", __func__, pfrom->GetId()); } } // disconnect node in case we have reached the outbound limit for serving historical blocks @@ -1091,6 +1089,16 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam pfrom->fDisconnect = true; send = false; } + // Avoid leaking prune-height by never sending blocks below the NODE_NETWORK_LIMITED threshold + if (send && !pfrom->fWhitelisted && ( + (((pfrom->GetLocalServices() & NODE_NETWORK_LIMITED) == NODE_NETWORK_LIMITED) && ((pfrom->GetLocalServices() & NODE_NETWORK) != NODE_NETWORK) && (chainActive.Tip()->nHeight - mi->second->nHeight > (int)NODE_NETWORK_LIMITED_MIN_BLOCKS + 2 /* add two blocks buffer extension for possible races */) ) + )) { + LogPrint(BCLog::NET, "Ignore block request below NODE_NETWORK_LIMITED threshold from peer=%d\n", pfrom->GetId()); + + //disconnect node and prevent it from stalling (would otherwise wait for the missing block) + pfrom->fDisconnect = true; + send = false; + } // Pruned nodes may have deleted the block, so check whether // it's available before trying to send. if (send && (mi->second->nStatus & BLOCK_HAVE_DATA)) @@ -1559,7 +1567,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr if (nVersion < MIN_PEER_PROTO_VERSION) { // disconnect from peers older than this proto version - LogPrintf("peer=%d using obsolete version %i; disconnecting\n", pfrom->GetId(), nVersion); + LogPrint(BCLog::NET, "peer=%d using obsolete version %i; disconnecting\n", pfrom->GetId(), nVersion); connman->PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_OBSOLETE, strprintf("Version must be %d or greater", MIN_PEER_PROTO_VERSION))); pfrom->fDisconnect = true; @@ -1659,7 +1667,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr if (fLogIPs) remoteAddr = ", peeraddr=" + pfrom->addr.ToString(); - LogPrintf("receive version message: %s: version %d, blocks=%d, us=%s, peer=%d%s\n", + LogPrint(BCLog::NET, "receive version message: %s: version %d, blocks=%d, us=%s, peer=%d%s\n", cleanSubVer, pfrom->nVersion, pfrom->nStartingHeight, addrMe.ToString(), pfrom->GetId(), remoteAddr); @@ -1702,6 +1710,9 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr // Mark this node as currently connected, so we update its timestamp later. LOCK(cs_main); State(pfrom->GetId())->fCurrentlyConnected = true; + LogPrintf("New outbound peer connected: version: %d, blocks=%d, peer=%d%s\n", + pfrom->nVersion.load(), pfrom->nStartingHeight, pfrom->GetId(), + (fLogIPs ? strprintf(", peeraddr=%s", pfrom->addr.ToString()) : "")); } if (pfrom->nVersion >= SENDHEADERS_VERSION) { @@ -1980,7 +1991,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr BlockMap::iterator it = mapBlockIndex.find(req.blockhash); if (it == mapBlockIndex.end() || !(it->second->nStatus & BLOCK_HAVE_DATA)) { - LogPrintf("Peer %d sent us a getblocktxn for a block we don't have", pfrom->GetId()); + LogPrint(BCLog::NET, "Peer %d sent us a getblocktxn for a block we don't have", pfrom->GetId()); return true; } @@ -2032,7 +2043,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr pindex = (*mi).second; if (!BlockRequestAllowed(pindex, chainparams.GetConsensus())) { - LogPrintf("%s: ignoring request from peer=%i for old block header that isn't in the main chain\n", __func__, pfrom->GetId()); + LogPrint(BCLog::NET, "%s: ignoring request from peer=%i for old block header that isn't in the main chain\n", __func__, pfrom->GetId()); return true; } } @@ -2102,7 +2113,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr if (!AlreadyHave(inv) && AcceptToMemoryPool(mempool, state, ptx, &fMissingInputs, &lRemovedTxn, false /* bypass_limits */, 0 /* nAbsurdFee */)) { - mempool.check(pcoinsTip); + mempool.check(pcoinsTip.get()); RelayTransaction(tx, connman); for (unsigned int i = 0; i < tx.vout.size(); i++) { vWorkQueue.emplace_back(inv.hash, i); @@ -2169,7 +2180,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr recentRejects->insert(orphanHash); } } - mempool.check(pcoinsTip); + mempool.check(pcoinsTip.get()); } } @@ -2286,10 +2297,12 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr int nDoS; if (state.IsInvalid(nDoS)) { if (nDoS > 0) { + LogPrintf("Peer %d sent us invalid header via cmpctblock\n", pfrom->GetId()); LOCK(cs_main); Misbehaving(pfrom->GetId(), nDoS); + } else { + LogPrint(BCLog::NET, "Peer %d sent us invalid header via cmpctblock\n", pfrom->GetId()); } - LogPrintf("Peer %d sent us invalid header via cmpctblock\n", pfrom->GetId()); return true; } } @@ -2751,8 +2764,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr else { LOCK(pfrom->cs_filter); - delete pfrom->pfilter; - pfrom->pfilter = new CBloomFilter(filter); + pfrom->pfilter.reset(new CBloomFilter(filter)); pfrom->pfilter->UpdateEmptyFull(); pfrom->fRelayTxes = true; } @@ -2788,8 +2800,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr { LOCK(pfrom->cs_filter); if (pfrom->GetLocalServices() & NODE_BLOOM) { - delete pfrom->pfilter; - pfrom->pfilter = new CBloomFilter(); + pfrom->pfilter.reset(new CBloomFilter()); } pfrom->fRelayTxes = true; } @@ -2893,7 +2904,7 @@ bool PeerLogicValidation::ProcessMessages(CNode* pfrom, std::atomic<bool>& inter msg.SetVersion(pfrom->GetRecvVersion()); // Scan for message start if (memcmp(msg.hdr.pchMessageStart, chainparams.MessageStart(), CMessageHeader::MESSAGE_START_SIZE) != 0) { - LogPrintf("PROCESSMESSAGE: INVALID MESSAGESTART %s peer=%d\n", SanitizeString(msg.hdr.GetCommand()), pfrom->GetId()); + LogPrint(BCLog::NET, "PROCESSMESSAGE: INVALID MESSAGESTART %s peer=%d\n", SanitizeString(msg.hdr.GetCommand()), pfrom->GetId()); pfrom->fDisconnect = true; return false; } @@ -2902,7 +2913,7 @@ bool PeerLogicValidation::ProcessMessages(CNode* pfrom, std::atomic<bool>& inter CMessageHeader& hdr = msg.hdr; if (!hdr.IsValid(chainparams.MessageStart())) { - LogPrintf("PROCESSMESSAGE: ERRORS IN HEADER %s peer=%d\n", SanitizeString(hdr.GetCommand()), pfrom->GetId()); + LogPrint(BCLog::NET, "PROCESSMESSAGE: ERRORS IN HEADER %s peer=%d\n", SanitizeString(hdr.GetCommand()), pfrom->GetId()); return fMoreWork; } std::string strCommand = hdr.GetCommand(); @@ -2915,7 +2926,7 @@ bool PeerLogicValidation::ProcessMessages(CNode* pfrom, std::atomic<bool>& inter const uint256& hash = msg.GetMessageHash(); if (memcmp(hash.begin(), hdr.pchChecksum, CMessageHeader::CHECKSUM_SIZE) != 0) { - LogPrintf("%s(%s, %u bytes): CHECKSUM ERROR expected %s was %s\n", __func__, + LogPrint(BCLog::NET, "%s(%s, %u bytes): CHECKSUM ERROR expected %s was %s\n", __func__, SanitizeString(strCommand), nMessageSize, HexStr(hash.begin(), hash.begin()+CMessageHeader::CHECKSUM_SIZE), HexStr(hdr.pchChecksum, hdr.pchChecksum+CMessageHeader::CHECKSUM_SIZE)); @@ -2938,17 +2949,17 @@ bool PeerLogicValidation::ProcessMessages(CNode* pfrom, std::atomic<bool>& inter if (strstr(e.what(), "end of data")) { // Allow exceptions from under-length message on vRecv - LogPrintf("%s(%s, %u bytes): Exception '%s' caught, normally caused by a message being shorter than its stated length\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); + LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught, normally caused by a message being shorter than its stated length\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); } else if (strstr(e.what(), "size too large")) { // Allow exceptions from over-long size - LogPrintf("%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); + LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); } else if (strstr(e.what(), "non-canonical ReadCompactSize()")) { // Allow exceptions from non-canonical encoding - LogPrintf("%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); + LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what()); } else { @@ -2962,7 +2973,7 @@ bool PeerLogicValidation::ProcessMessages(CNode* pfrom, std::atomic<bool>& inter } if (!fRet) { - LogPrintf("%s(%s, %u bytes) FAILED peer=%d\n", __func__, SanitizeString(strCommand), nMessageSize, pfrom->GetId()); + LogPrint(BCLog::NET, "%s(%s, %u bytes) FAILED peer=%d\n", __func__, SanitizeString(strCommand), nMessageSize, pfrom->GetId()); } LOCK(cs_main); @@ -3008,6 +3019,7 @@ void PeerLogicValidation::ConsiderEviction(CNode *pto, int64_t time_in_seconds) LogPrintf("Disconnecting outbound peer %d for old chain, best known block = %s\n", pto->GetId(), state.pindexBestKnownBlock != nullptr ? state.pindexBestKnownBlock->GetBlockHash().ToString() : "<none>"); pto->fDisconnect = true; } else { + assert(state.m_chain_sync.m_work_header); LogPrint(BCLog::NET, "sending getheaders to outbound peer=%d to verify chain work (current best known block:%s, benchmark blockhash: %s)\n", pto->GetId(), state.pindexBestKnownBlock != nullptr ? state.pindexBestKnownBlock->GetBlockHash().ToString() : "<none>", state.m_chain_sync.m_work_header->GetBlockHash().ToString()); connman->PushMessage(pto, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(state.m_chain_sync.m_work_header->pprev), uint256())); state.m_chain_sync.m_sent_getheaders = true; |