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merge bitcoin#20541: Move special CAddress-without-nTime logic to net_processing

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Kittywhiskers Van Gogh 2020-12-01 11:00:26 -08:00
parent 30ac41e068
commit 224fb687c8
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GPG Key ID: 30CD0C065E5C4AAD
2 changed files with 22 additions and 26 deletions
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35
src/net_processing.cpp
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@ -1254,17 +1254,15 @@ void PeerManagerImpl::PushNodeVersion(CNode& pnode, const Peer& peer)
// Note that pnode->GetLocalServices() is a reflection of the local
// services we were offering when the CNode object was created for this
// peer.
ServiceFlags nLocalNodeServices = pnode.GetLocalServices();
uint64_t my_services{pnode.GetLocalServices()};
const int64_t nTime{count_seconds(GetTime<std::chrono::seconds>())};
uint64_t nonce = pnode.GetLocalNonce();
const int nNodeStartingHeight{m_best_height};
NodeId nodeid = pnode.GetId();
CAddress addr = pnode.addr;
CAddress addrYou = addr.IsRoutable() && !IsProxy(addr) && addr.IsAddrV1Compatible() ?
addr :
CAddress(CService(), addr.nServices);
CAddress addrMe = CAddress(CService(), nLocalNodeServices);
CService addr_you = addr.IsRoutable() && !IsProxy(addr) && addr.IsAddrV1Compatible() ? addr : CService();
uint64_t your_services{addr.nServices};
uint256 mnauthChallenge;
GetRandBytes({mnauthChallenge.begin(), mnauthChallenge.size()});
@ -1276,13 +1274,15 @@ void PeerManagerImpl::PushNodeVersion(CNode& pnode, const Peer& peer)
}
const bool tx_relay = !m_ignore_incoming_txs && !pnode.IsBlockOnlyConn();
m_connman.PushMessage(&pnode, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::VERSION, nProtocolVersion, (uint64_t)nLocalNodeServices, nTime, addrYou, addrMe,
m_connman.PushMessage(&pnode, CNetMsgMaker(INIT_PROTO_VERSION).Make(NetMsgType::VERSION, nProtocolVersion, my_services, nTime,
your_services, addr_you, // Together the pre-version-31402 serialization of CAddress "addrYou" (without nTime)
my_services, CService(), // Together the pre-version-31402 serialization of CAddress "addrMe" (without nTime)
nonce, strSubVersion, nNodeStartingHeight, tx_relay, mnauthChallenge, pnode.m_masternode_connection.load()));
if (fLogIPs) {
LogPrint(BCLog::NET, "send version message: version %d, blocks=%d, us=%s, them=%s, txrelay=%d, peer=%d\n", nProtocolVersion, nNodeStartingHeight, addrMe.ToString(), addrYou.ToString(), tx_relay, nodeid);
LogPrint(BCLog::NET, "send version message: version %d, blocks=%d, them=%s, txrelay=%d, peer=%d\n", nProtocolVersion, nNodeStartingHeight, addr_you.ToString(), tx_relay, nodeid);
} else {
LogPrint(BCLog::NET, "send version message: version %d, blocks=%d, us=%s, txrelay=%d, peer=%d\n", nProtocolVersion, nNodeStartingHeight, addrMe.ToString(), tx_relay, nodeid);
LogPrint(BCLog::NET, "send version message: version %d, blocks=%d, txrelay=%d, peer=%d\n", nProtocolVersion, nNodeStartingHeight, tx_relay, nodeid);
}
}
@ -3276,21 +3276,20 @@ void PeerManagerImpl::ProcessMessage(
}
int64_t nTime;
CAddress addrMe;
CAddress addrFrom;
CService addrMe;
uint64_t nNonce = 1;
uint64_t nServiceInt;
ServiceFlags nServices;
int nVersion;
std::string cleanSubVer;
int starting_height = -1;
bool fRelay = true;
vRecv >> nVersion >> nServiceInt >> nTime >> addrMe;
vRecv >> nVersion >> Using<CustomUintFormatter<8>>(nServices) >> nTime;
if (nTime < 0) {
nTime = 0;
}
nServices = ServiceFlags(nServiceInt);
vRecv.ignore(8); // Ignore the addrMe service bits sent by the peer
vRecv >> addrMe;
if (!pfrom.IsInboundConn())
{
m_addrman.SetServices(pfrom.addr, nServices);
@ -3309,8 +3308,14 @@ void PeerManagerImpl::ProcessMessage(
return;
}
if (!vRecv.empty())
vRecv >> addrFrom >> nNonce;
if (!vRecv.empty()) {
// The version message includes information about the sending node which we don't use:
// - 8 bytes (service bits)
// - 16 bytes (ipv6 address)
// - 2 bytes (port)
vRecv.ignore(26);
vRecv >> nNonce;
}
if (!vRecv.empty()) {
std::string strSubVer;
vRecv >> LIMITED_STRING(strSubVer, MAX_SUBVERSION_LENGTH);

11
src/protocol.h
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@ -431,7 +431,6 @@ public:
// ambiguous what that would mean. Make sure no code relying on that is introduced:
assert(!(s.GetType() & SER_GETHASH));
bool use_v2;
bool store_time;
if (s.GetType() & SER_DISK) {
// In the disk serialization format, the encoding (v1 or v2) is determined by a flag version
// that's part of the serialization itself. ADDRV2_FORMAT in the stream version only determines
@ -448,24 +447,16 @@ public:
} else {
throw std::ios_base::failure("Unsupported CAddress disk format version");
}
store_time = true;
} else {
// In the network serialization format, the encoding (v1 or v2) is determined directly by
// the value of ADDRV2_FORMAT in the stream version, as no explicitly encoded version
// exists in the stream.
assert(s.GetType() & SER_NETWORK);
use_v2 = s.GetVersion() & ADDRV2_FORMAT;
// The only time we serialize a CAddress object without nTime is in
// the initial VERSION messages which contain two CAddress records.
// At that point, the serialization version is INIT_PROTO_VERSION.
// After the version handshake, serialization version is >=
// MIN_PEER_PROTO_VERSION and all ADDR messages are serialized with
// nTime.
store_time = s.GetVersion() != INIT_PROTO_VERSION;
}
SER_READ(obj, obj.nTime = TIME_INIT);
if (store_time) READWRITE(obj.nTime);
READWRITE(obj.nTime);
// nServices is serialized as CompactSize in V2; as uint64_t in V1.
if (use_v2) {
uint64_t services_tmp;