diff options
-rw-r--r-- | src/main.cpp | 131 | ||||
-rw-r--r-- | src/net.cpp | 46 | ||||
-rw-r--r-- | src/net.h | 35 |
3 files changed, 93 insertions, 119 deletions
diff --git a/src/main.cpp b/src/main.cpp index 11c7b2ec6a..559538165c 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -18,6 +18,7 @@ #include "init.h" #include "merkleblock.h" #include "net.h" +#include "netmessagemaker.h" #include "netbase.h" #include "policy/fees.h" #include "policy/policy.h" @@ -368,8 +369,8 @@ void PushNodeVersion(CNode *pnode, CConnman& connman, int64_t nTime) CAddress addrYou = (addr.IsRoutable() && !IsProxy(addr) ? addr : CAddress(CService(), addr.nServices)); CAddress addrMe = CAddress(CService(), nLocalNodeServices); - connman.PushMessageWithVersion(pnode, INIT_PROTO_VERSION, NetMsgType::VERSION, PROTOCOL_VERSION, (uint64_t)nLocalNodeServices, nTime, addrYou, addrMe, - nonce, strSubVersion, nNodeStartingHeight, ::fRelayTxes); + connman.PushMessage(pnode, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::VERSION, PROTOCOL_VERSION, (uint64_t)nLocalNodeServices, nTime, addrYou, addrMe, + nonce, strSubVersion, nNodeStartingHeight, ::fRelayTxes)); if (fLogIPs) LogPrint("net", "send version message: version %d, blocks=%d, us=%s, them=%s, peer=%d\n", PROTOCOL_VERSION, nNodeStartingHeight, addrMe.ToString(), addrYou.ToString(), nodeid); @@ -530,13 +531,13 @@ void MaybeSetPeerAsAnnouncingHeaderAndIDs(const CNodeState* nodestate, CNode* pf // As per BIP152, we only get 3 of our peers to announce // blocks using compact encodings. connman.ForNode(lNodesAnnouncingHeaderAndIDs.front(), [&connman, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion](CNode* pnodeStop){ - connman.PushMessage(pnodeStop, NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion); + connman.PushMessage(pnodeStop, CNetMsgMaker(pnodeStop->GetSendVersion()).Make(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion)); return true; }); lNodesAnnouncingHeaderAndIDs.pop_front(); } fAnnounceUsingCMPCTBLOCK = true; - connman.PushMessage(pfrom, NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion); + connman.PushMessage(pfrom, CNetMsgMaker(pfrom->GetSendVersion()).Make(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion)); lNodesAnnouncingHeaderAndIDs.push_back(pfrom->GetId()); } } @@ -4893,9 +4894,8 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam { std::deque<CInv>::iterator it = pfrom->vRecvGetData.begin(); unsigned int nMaxSendBufferSize = connman.GetSendBufferSize(); - vector<CInv> vNotFound; - + CNetMsgMaker msgMaker(pfrom->GetSendVersion()); LOCK(cs_main); while (it != pfrom->vRecvGetData.end()) { @@ -4949,9 +4949,9 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam if (!ReadBlockFromDisk(block, (*mi).second, consensusParams)) assert(!"cannot load block from disk"); if (inv.type == MSG_BLOCK) - connman.PushMessageWithFlag(pfrom, SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block); + connman.PushMessage(pfrom, msgMaker.Make(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block)); else if (inv.type == MSG_WITNESS_BLOCK) - connman.PushMessage(pfrom, NetMsgType::BLOCK, block); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::BLOCK, block)); else if (inv.type == MSG_FILTERED_BLOCK) { bool sendMerkleBlock = false; @@ -4964,7 +4964,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam } } if (sendMerkleBlock) { - connman.PushMessage(pfrom, NetMsgType::MERKLEBLOCK, merkleBlock); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::MERKLEBLOCK, merkleBlock)); // CMerkleBlock just contains hashes, so also push any transactions in the block the client did not see // This avoids hurting performance by pointlessly requiring a round-trip // Note that there is currently no way for a node to request any single transactions we didn't send here - @@ -4973,7 +4973,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam // however we MUST always provide at least what the remote peer needs typedef std::pair<unsigned int, uint256> PairType; BOOST_FOREACH(PairType& pair, merkleBlock.vMatchedTxn) - connman.PushMessageWithFlag(pfrom, SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::TX, *block.vtx[pair.first]); + connman.PushMessage(pfrom, msgMaker.Make(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::TX, *block.vtx[pair.first])); } // else // no response @@ -4985,11 +4985,12 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam // and we don't feel like constructing the object for them, so // instead we respond with the full, non-compact block. bool fPeerWantsWitness = State(pfrom->GetId())->fWantsCmpctWitness; + int nSendFlags = fPeerWantsWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS; if (CanDirectFetch(consensusParams) && mi->second->nHeight >= chainActive.Height() - MAX_CMPCTBLOCK_DEPTH) { CBlockHeaderAndShortTxIDs cmpctblock(block, fPeerWantsWitness); - connman.PushMessageWithFlag(pfrom, fPeerWantsWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::CMPCTBLOCK, cmpctblock); + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::CMPCTBLOCK, cmpctblock)); } else - connman.PushMessageWithFlag(pfrom, fPeerWantsWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block); + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::BLOCK, block)); } // Trigger the peer node to send a getblocks request for the next batch of inventory @@ -5000,7 +5001,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam // wait for other stuff first. vector<CInv> vInv; vInv.push_back(CInv(MSG_BLOCK, chainActive.Tip()->GetBlockHash())); - connman.PushMessage(pfrom, NetMsgType::INV, vInv); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::INV, vInv)); pfrom->hashContinue.SetNull(); } } @@ -5010,15 +5011,16 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam // Send stream from relay memory bool push = false; auto mi = mapRelay.find(inv.hash); + int nSendFlags = (inv.type == MSG_TX ? SERIALIZE_TRANSACTION_NO_WITNESS : 0); if (mi != mapRelay.end()) { - connman.PushMessageWithFlag(pfrom, inv.type == MSG_TX ? SERIALIZE_TRANSACTION_NO_WITNESS : 0, NetMsgType::TX, *mi->second); + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::TX, *mi->second)); push = true; } else if (pfrom->timeLastMempoolReq) { auto txinfo = mempool.info(inv.hash); // To protect privacy, do not answer getdata using the mempool when // that TX couldn't have been INVed in reply to a MEMPOOL request. if (txinfo.tx && txinfo.nTime <= pfrom->timeLastMempoolReq) { - connman.PushMessageWithFlag(pfrom, inv.type == MSG_TX ? SERIALIZE_TRANSACTION_NO_WITNESS : 0, NetMsgType::TX, *txinfo.tx); + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::TX, *txinfo.tx)); push = true; } } @@ -5045,7 +5047,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam // do that because they want to know about (and store and rebroadcast and // risk analyze) the dependencies of transactions relevant to them, without // having to download the entire memory pool. - connman.PushMessage(pfrom, NetMsgType::NOTFOUND, vNotFound); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::NOTFOUND, vNotFound)); } } @@ -5089,7 +5091,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Each connection can only send one version message if (pfrom->nVersion != 0) { - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::REJECT, strCommand, REJECT_DUPLICATE, string("Duplicate version message")); + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_DUPLICATE, string("Duplicate version message"))); LOCK(cs_main); Misbehaving(pfrom->GetId(), 1); return false; @@ -5109,8 +5111,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, if (pfrom->nServicesExpected & ~pfrom->nServices) { LogPrint("net", "peer=%d does not offer the expected services (%08x offered, %08x expected); disconnecting\n", pfrom->id, pfrom->nServices, pfrom->nServicesExpected); - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::REJECT, strCommand, REJECT_NONSTANDARD, - strprintf("Expected to offer services %08x", pfrom->nServicesExpected)); + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_NONSTANDARD, + strprintf("Expected to offer services %08x", pfrom->nServicesExpected))); pfrom->fDisconnect = true; return false; } @@ -5119,8 +5121,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, { // disconnect from peers older than this proto version LogPrintf("peer=%d using obsolete version %i; disconnecting\n", pfrom->id, pfrom->nVersion); - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::REJECT, strCommand, REJECT_OBSOLETE, - strprintf("Version must be %d or greater", MIN_PEER_PROTO_VERSION)); + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_OBSOLETE, + strprintf("Version must be %d or greater", MIN_PEER_PROTO_VERSION))); pfrom->fDisconnect = true; return false; } @@ -5177,8 +5179,9 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, } // Change version - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::VERACK); - pfrom->SetSendVersion(min(pfrom->nVersion, PROTOCOL_VERSION)); + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::VERACK)); + int nSendVersion = std::min(pfrom->nVersion, PROTOCOL_VERSION); + pfrom->SetSendVersion(nSendVersion); if (!pfrom->fInbound) { @@ -5201,7 +5204,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Get recent addresses if (pfrom->fOneShot || pfrom->nVersion >= CADDR_TIME_VERSION || connman.GetAddressCount() < 1000) { - connman.PushMessage(pfrom, NetMsgType::GETADDR); + connman.PushMessage(pfrom, CNetMsgMaker(nSendVersion).Make(NetMsgType::GETADDR)); pfrom->fGetAddr = true; } connman.MarkAddressGood(pfrom->addr); @@ -5227,6 +5230,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, assert(pfrom->fInbound == false); pfrom->fDisconnect = true; } + return true; } @@ -5238,8 +5242,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, return false; } + // At this point, the outgoing message serialization version can't change. + CNetMsgMaker msgMaker(pfrom->GetSendVersion()); - else if (strCommand == NetMsgType::VERACK) + if (strCommand == NetMsgType::VERACK) { pfrom->SetRecvVersion(min(pfrom->nVersion, PROTOCOL_VERSION)); @@ -5254,7 +5260,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // We send this to non-NODE NETWORK peers as well, because even // non-NODE NETWORK peers can announce blocks (such as pruning // nodes) - connman.PushMessage(pfrom, NetMsgType::SENDHEADERS); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::SENDHEADERS)); } if (pfrom->nVersion >= SHORT_IDS_BLOCKS_VERSION) { // Tell our peer we are willing to provide version 1 or 2 cmpctblocks @@ -5265,9 +5271,9 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, bool fAnnounceUsingCMPCTBLOCK = false; uint64_t nCMPCTBLOCKVersion = 2; if (pfrom->GetLocalServices() & NODE_WITNESS) - connman.PushMessage(pfrom, NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion)); nCMPCTBLOCKVersion = 1; - connman.PushMessage(pfrom, NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion)); } } @@ -5392,7 +5398,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // fell back to inv we probably have a reorg which we should get the headers for first, // we now only provide a getheaders response here. When we receive the headers, we will // then ask for the blocks we need. - connman.PushMessage(pfrom, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), inv.hash); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), inv.hash)); LogPrint("net", "getheaders (%d) %s to peer=%d\n", pindexBestHeader->nHeight, inv.hash.ToString(), pfrom->id); } } @@ -5415,7 +5421,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, } if (!vToFetch.empty()) - connman.PushMessage(pfrom, NetMsgType::GETDATA, vToFetch); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vToFetch)); } @@ -5527,7 +5533,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, } resp.txn[i] = block.vtx[req.indexes[i]]; } - connman.PushMessageWithFlag(pfrom, State(pfrom->GetId())->fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCKTXN, resp); + int nSendFlags = State(pfrom->GetId())->fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS; + connman.PushMessage(pfrom, msgMaker.Make(nSendFlags, NetMsgType::BLOCKTXN, resp)); } @@ -5576,7 +5583,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // headers message). In both cases it's safe to update // pindexBestHeaderSent to be our tip. nodestate->pindexBestHeaderSent = pindex ? pindex : chainActive.Tip(); - connman.PushMessage(pfrom, NetMsgType::HEADERS, vHeaders); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::HEADERS, vHeaders)); } @@ -5739,8 +5746,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, pfrom->id, FormatStateMessage(state)); if (state.GetRejectCode() < REJECT_INTERNAL) // Never send AcceptToMemoryPool's internal codes over P2P - connman.PushMessage(pfrom, NetMsgType::REJECT, strCommand, (unsigned char)state.GetRejectCode(), - state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), inv.hash); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::REJECT, strCommand, (unsigned char)state.GetRejectCode(), + state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), inv.hash)); if (nDoS > 0) { Misbehaving(pfrom->GetId(), nDoS); } @@ -5758,7 +5765,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, if (mapBlockIndex.find(cmpctblock.header.hashPrevBlock) == mapBlockIndex.end()) { // Doesn't connect (or is genesis), instead of DoSing in AcceptBlockHeader, request deeper headers if (!IsInitialBlockDownload()) - connman.PushMessage(pfrom, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), uint256()); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), uint256())); return true; } @@ -5791,7 +5798,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // so we just grab the block via normal getdata std::vector<CInv> vInv(1); vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash()); - connman.PushMessage(pfrom, NetMsgType::GETDATA, vInv); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vInv)); } return true; } @@ -5835,7 +5842,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Duplicate txindexes, the block is now in-flight, so just request it std::vector<CInv> vInv(1); vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash()); - connman.PushMessage(pfrom, NetMsgType::GETDATA, vInv); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vInv)); return true; } @@ -5859,7 +5866,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, return ProcessMessage(pfrom, NetMsgType::BLOCKTXN, blockTxnMsg, nTimeReceived, chainparams, connman); } else { req.blockhash = pindex->GetBlockHash(); - connman.PushMessage(pfrom, NetMsgType::GETBLOCKTXN, req); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETBLOCKTXN, req)); } } } else { @@ -5868,7 +5875,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // mempool will probably be useless - request the block normally std::vector<CInv> vInv(1); vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash()); - connman.PushMessage(pfrom, NetMsgType::GETDATA, vInv); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vInv)); return true; } else { // If this was an announce-cmpctblock, we want the same treatment as a header message @@ -5910,7 +5917,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Might have collided, fall back to getdata now :( std::vector<CInv> invs; invs.push_back(CInv(MSG_BLOCK | GetFetchFlags(pfrom, chainActive.Tip(), chainparams.GetConsensus()), resp.blockhash)); - connman.PushMessage(pfrom, NetMsgType::GETDATA, invs); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, invs)); } else { // Block is either okay, or possibly we received // READ_STATUS_CHECKBLOCK_FAILED. @@ -5987,7 +5994,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // nUnconnectingHeaders gets reset back to 0. if (mapBlockIndex.find(headers[0].hashPrevBlock) == mapBlockIndex.end() && nCount < MAX_BLOCKS_TO_ANNOUNCE) { nodestate->nUnconnectingHeaders++; - connman.PushMessage(pfrom, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), uint256()); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), uint256())); LogPrint("net", "received header %s: missing prev block %s, sending getheaders (%d) to end (peer=%d, nUnconnectingHeaders=%d)\n", headers[0].GetHash().ToString(), headers[0].hashPrevBlock.ToString(), @@ -6034,7 +6041,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // TODO: optimize: if pindexLast is an ancestor of chainActive.Tip or pindexBestHeader, continue // from there instead. LogPrint("net", "more getheaders (%d) to end to peer=%d (startheight:%d)\n", pindexLast->nHeight, pfrom->id, pfrom->nStartingHeight); - connman.PushMessage(pfrom, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexLast), uint256()); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexLast), uint256())); } bool fCanDirectFetch = CanDirectFetch(chainparams.GetConsensus()); @@ -6087,7 +6094,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // In any case, we want to download using a compact block, not a regular one vGetData[0] = CInv(MSG_CMPCT_BLOCK, vGetData[0].hash); } - connman.PushMessage(pfrom, NetMsgType::GETDATA, vGetData); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::GETDATA, vGetData)); } } } @@ -6191,7 +6198,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // it, if the remote node sends a ping once per second and this node takes 5 // seconds to respond to each, the 5th ping the remote sends would appear to // return very quickly. - connman.PushMessage(pfrom, NetMsgType::PONG, nonce); + connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::PONG, nonce)); } } @@ -6447,7 +6454,7 @@ bool ProcessMessages(CNode* pfrom, CConnman& connman) } catch (const std::ios_base::failure& e) { - connman.PushMessageWithVersion(pfrom, INIT_PROTO_VERSION, NetMsgType::REJECT, strCommand, REJECT_MALFORMED, string("error parsing message")); + connman.PushMessage(pfrom, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::REJECT, strCommand, REJECT_MALFORMED, string("error parsing message"))); if (strstr(e.what(), "end of data")) { // Allow exceptions from under-length message on vRecv @@ -6515,6 +6522,9 @@ bool SendMessages(CNode* pto, CConnman& connman) if (pto->nVersion == 0 || pto->fDisconnect) return true; + // If we get here, the outgoing message serialization version is set and can't change. + CNetMsgMaker msgMaker(pto->GetSendVersion()); + // // Message: ping // @@ -6536,11 +6546,11 @@ bool SendMessages(CNode* pto, CConnman& connman) pto->nPingUsecStart = GetTimeMicros(); if (pto->nVersion > BIP0031_VERSION) { pto->nPingNonceSent = nonce; - connman.PushMessage(pto, NetMsgType::PING, nonce); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::PING, nonce)); } else { // Peer is too old to support ping command with nonce, pong will never arrive. pto->nPingNonceSent = 0; - connman.PushMessage(pto, NetMsgType::PING); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::PING)); } } @@ -6551,7 +6561,7 @@ bool SendMessages(CNode* pto, CConnman& connman) CNodeState &state = *State(pto->GetId()); BOOST_FOREACH(const CBlockReject& reject, state.rejects) - connman.PushMessage(pto, NetMsgType::REJECT, (string)NetMsgType::BLOCK, reject.chRejectCode, reject.strRejectReason, reject.hashBlock); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::REJECT, (string)NetMsgType::BLOCK, reject.chRejectCode, reject.strRejectReason, reject.hashBlock)); state.rejects.clear(); if (state.fShouldBan) { @@ -6593,14 +6603,14 @@ bool SendMessages(CNode* pto, CConnman& connman) // receiver rejects addr messages larger than 1000 if (vAddr.size() >= 1000) { - connman.PushMessage(pto, NetMsgType::ADDR, vAddr); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::ADDR, vAddr)); vAddr.clear(); } } } pto->vAddrToSend.clear(); if (!vAddr.empty()) - connman.PushMessage(pto, NetMsgType::ADDR, vAddr); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::ADDR, vAddr)); // we only send the big addr message once if (pto->vAddrToSend.capacity() > 40) pto->vAddrToSend.shrink_to_fit(); @@ -6626,7 +6636,7 @@ bool SendMessages(CNode* pto, CConnman& connman) if (pindexStart->pprev) pindexStart = pindexStart->pprev; LogPrint("net", "initial getheaders (%d) to peer=%d (startheight:%d)\n", pindexStart->nHeight, pto->id, pto->nStartingHeight); - connman.PushMessage(pto, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexStart), uint256()); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::GETHEADERS, chainActive.GetLocator(pindexStart), uint256())); } } @@ -6715,7 +6725,8 @@ bool SendMessages(CNode* pto, CConnman& connman) CBlock block; assert(ReadBlockFromDisk(block, pBestIndex, consensusParams)); CBlockHeaderAndShortTxIDs cmpctblock(block, state.fWantsCmpctWitness); - connman.PushMessageWithFlag(pto, state.fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::CMPCTBLOCK, cmpctblock); + int nSendFlags = state.fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS; + connman.PushMessage(pto, msgMaker.Make(nSendFlags, NetMsgType::CMPCTBLOCK, cmpctblock)); state.pindexBestHeaderSent = pBestIndex; } else if (state.fPreferHeaders) { if (vHeaders.size() > 1) { @@ -6727,7 +6738,7 @@ bool SendMessages(CNode* pto, CConnman& connman) LogPrint("net", "%s: sending header %s to peer=%d\n", __func__, vHeaders.front().GetHash().ToString(), pto->id); } - connman.PushMessage(pto, NetMsgType::HEADERS, vHeaders); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::HEADERS, vHeaders)); state.pindexBestHeaderSent = pBestIndex; } else fRevertToInv = true; @@ -6773,7 +6784,7 @@ bool SendMessages(CNode* pto, CConnman& connman) BOOST_FOREACH(const uint256& hash, pto->vInventoryBlockToSend) { vInv.push_back(CInv(MSG_BLOCK, hash)); if (vInv.size() == MAX_INV_SZ) { - connman.PushMessage(pto, NetMsgType::INV, vInv); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::INV, vInv)); vInv.clear(); } } @@ -6819,7 +6830,7 @@ bool SendMessages(CNode* pto, CConnman& connman) pto->filterInventoryKnown.insert(hash); vInv.push_back(inv); if (vInv.size() == MAX_INV_SZ) { - connman.PushMessage(pto, NetMsgType::INV, vInv); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::INV, vInv)); vInv.clear(); } } @@ -6885,7 +6896,7 @@ bool SendMessages(CNode* pto, CConnman& connman) } } if (vInv.size() == MAX_INV_SZ) { - connman.PushMessage(pto, NetMsgType::INV, vInv); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::INV, vInv)); vInv.clear(); } pto->filterInventoryKnown.insert(hash); @@ -6893,7 +6904,7 @@ bool SendMessages(CNode* pto, CConnman& connman) } } if (!vInv.empty()) - connman.PushMessage(pto, NetMsgType::INV, vInv); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::INV, vInv)); // Detect whether we're stalling nNow = GetTimeMicros(); @@ -6956,7 +6967,7 @@ bool SendMessages(CNode* pto, CConnman& connman) vGetData.push_back(inv); if (vGetData.size() >= 1000) { - connman.PushMessage(pto, NetMsgType::GETDATA, vGetData); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::GETDATA, vGetData)); vGetData.clear(); } } else { @@ -6966,7 +6977,7 @@ bool SendMessages(CNode* pto, CConnman& connman) pto->mapAskFor.erase(pto->mapAskFor.begin()); } if (!vGetData.empty()) - connman.PushMessage(pto, NetMsgType::GETDATA, vGetData); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::GETDATA, vGetData)); // // Message: feefilter @@ -6979,7 +6990,7 @@ bool SendMessages(CNode* pto, CConnman& connman) if (timeNow > pto->nextSendTimeFeeFilter) { CAmount filterToSend = filterRounder.round(currentFilter); if (filterToSend != pto->lastSentFeeFilter) { - connman.PushMessage(pto, NetMsgType::FEEFILTER, filterToSend); + connman.PushMessage(pto, msgMaker.Make(NetMsgType::FEEFILTER, filterToSend)); pto->lastSentFeeFilter = filterToSend; } pto->nextSendTimeFeeFilter = PoissonNextSend(timeNow, AVG_FEEFILTER_BROADCAST_INTERVAL); diff --git a/src/net.cpp b/src/net.cpp index 15c4514f15..ce87150ae3 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -768,13 +768,13 @@ const uint256& CNetMessage::GetMessageHash() const // requires LOCK(cs_vSend) size_t SocketSendData(CNode *pnode) { - std::deque<CSerializeData>::iterator it = pnode->vSendMsg.begin(); + auto it = pnode->vSendMsg.begin(); size_t nSentSize = 0; while (it != pnode->vSendMsg.end()) { - const CSerializeData &data = *it; + const auto &data = *it; assert(data.size() > pnode->nSendOffset); - int nBytes = send(pnode->hSocket, &data[pnode->nSendOffset], data.size() - pnode->nSendOffset, MSG_NOSIGNAL | MSG_DONTWAIT); + int nBytes = send(pnode->hSocket, reinterpret_cast<const char*>(data.data()) + pnode->nSendOffset, data.size() - pnode->nSendOffset, MSG_NOSIGNAL | MSG_DONTWAIT); if (nBytes > 0) { pnode->nLastSend = GetTime(); pnode->nSendBytes += nBytes; @@ -2612,30 +2612,19 @@ void CNode::AskFor(const CInv& inv) mapAskFor.insert(std::make_pair(nRequestTime, inv)); } -CDataStream CConnman::BeginMessage(CNode* pnode, int nVersion, int flags, const std::string& sCommand) +void CConnman::PushMessage(CNode* pnode, CSerializedNetMsg&& msg) { - return {SER_NETWORK, (nVersion ? nVersion : pnode->GetSendVersion()) | flags, CMessageHeader(Params().MessageStart(), sCommand.c_str(), 0) }; -} - -void CConnman::EndMessage(CDataStream& strm) -{ - // Set the size - assert(strm.size () >= CMessageHeader::HEADER_SIZE); - unsigned int nSize = strm.size() - CMessageHeader::HEADER_SIZE; - WriteLE32((uint8_t*)&strm[CMessageHeader::MESSAGE_SIZE_OFFSET], nSize); - // Set the checksum - uint256 hash = Hash(strm.begin() + CMessageHeader::HEADER_SIZE, strm.end()); - memcpy((char*)&strm[CMessageHeader::CHECKSUM_OFFSET], hash.begin(), CMessageHeader::CHECKSUM_SIZE); - -} + size_t nMessageSize = msg.data.size(); + size_t nTotalSize = nMessageSize + CMessageHeader::HEADER_SIZE; + LogPrint("net", "sending %s (%d bytes) peer=%d\n", SanitizeString(msg.command.c_str()), nMessageSize, pnode->id); -void CConnman::PushMessage(CNode* pnode, CDataStream& strm, const std::string& sCommand) -{ - if(strm.empty()) - return; + std::vector<unsigned char> serializedHeader; + serializedHeader.reserve(CMessageHeader::HEADER_SIZE); + uint256 hash = Hash(msg.data.data(), msg.data.data() + nMessageSize); + CMessageHeader hdr(Params().MessageStart(), msg.command.c_str(), nMessageSize); + memcpy(hdr.pchChecksum, hash.begin(), CMessageHeader::CHECKSUM_SIZE); - unsigned int nSize = strm.size() - CMessageHeader::HEADER_SIZE; - LogPrint("net", "sending %s (%d bytes) peer=%d\n", SanitizeString(sCommand.c_str()), nSize, pnode->id); + CVectorWriter{SER_NETWORK, INIT_PROTO_VERSION, serializedHeader, 0, hdr}; size_t nBytesSent = 0; { @@ -2644,11 +2633,14 @@ void CConnman::PushMessage(CNode* pnode, CDataStream& strm, const std::string& s return; } bool optimisticSend(pnode->vSendMsg.empty()); - pnode->vSendMsg.emplace_back(strm.begin(), strm.end()); //log total amount of bytes per command - pnode->mapSendBytesPerMsgCmd[sCommand] += strm.size(); - pnode->nSendSize += strm.size(); + pnode->mapSendBytesPerMsgCmd[msg.command] += nTotalSize; + pnode->nSendSize += nTotalSize; + + pnode->vSendMsg.push_back(std::move(serializedHeader)); + if (nMessageSize) + pnode->vSendMsg.push_back(std::move(msg.data)); // If write queue empty, attempt "optimistic write" if (optimisticSend == true) @@ -152,32 +152,7 @@ public: bool ForNode(NodeId id, std::function<bool(CNode* pnode)> func); - template <typename... Args> - void PushMessageWithVersionAndFlag(CNode* pnode, int nVersion, int flag, const std::string& sCommand, Args&&... args) - { - auto msg(BeginMessage(pnode, nVersion, flag, sCommand)); - ::SerializeMany(msg, std::forward<Args>(args)...); - EndMessage(msg); - PushMessage(pnode, msg, sCommand); - } - - template <typename... Args> - void PushMessageWithFlag(CNode* pnode, int flag, const std::string& sCommand, Args&&... args) - { - PushMessageWithVersionAndFlag(pnode, 0, flag, sCommand, std::forward<Args>(args)...); - } - - template <typename... Args> - void PushMessageWithVersion(CNode* pnode, int nVersion, const std::string& sCommand, Args&&... args) - { - PushMessageWithVersionAndFlag(pnode, nVersion, 0, sCommand, std::forward<Args>(args)...); - } - - template <typename... Args> - void PushMessage(CNode* pnode, const std::string& sCommand, Args&&... args) - { - PushMessageWithVersionAndFlag(pnode, 0, 0, sCommand, std::forward<Args>(args)...); - } + void PushMessage(CNode* pnode, CSerializedNetMsg&& msg); template<typename Callable> bool ForEachNodeContinueIf(Callable&& func) @@ -388,10 +363,6 @@ private: unsigned int GetReceiveFloodSize() const; - CDataStream BeginMessage(CNode* node, int nVersion, int flags, const std::string& sCommand); - void PushMessage(CNode* pnode, CDataStream& strm, const std::string& sCommand); - void EndMessage(CDataStream& strm); - // Network stats void RecordBytesRecv(uint64_t bytes); void RecordBytesSent(uint64_t bytes); @@ -615,7 +586,7 @@ public: size_t nSendSize; // total size of all vSendMsg entries size_t nSendOffset; // offset inside the first vSendMsg already sent uint64_t nSendBytes; - std::deque<CSerializeData> vSendMsg; + std::deque<std::vector<unsigned char>> vSendMsg; CCriticalSection cs_vSend; std::deque<CInv> vRecvGetData; @@ -785,7 +756,7 @@ public: { // The send version should always be explicitly set to // INIT_PROTO_VERSION rather than using this value until the handshake - // is complete. See PushMessageWithVersion(). + // is complete. assert(nSendVersion != 0); return nSendVersion; } |