diff options
Diffstat (limited to 'src/net.cpp')
-rw-r--r-- | src/net.cpp | 93 |
1 files changed, 62 insertions, 31 deletions
diff --git a/src/net.cpp b/src/net.cpp index 31960664e3..4759287c36 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -35,6 +35,7 @@ #include <algorithm> #include <cstdint> +#include <functional> #include <unordered_map> #include <math.h> @@ -592,7 +593,6 @@ void CNode::copyStats(CNodeStats &stats, const std::vector<bool> &m_asmap) } X(m_permissionFlags); if (m_tx_relay != nullptr) { - LOCK(m_tx_relay->cs_feeFilter); stats.minFeeFilter = m_tx_relay->minFeeFilter; } else { stats.minFeeFilter = 0; @@ -1123,6 +1123,27 @@ void CConnman::AcceptConnection(const ListenSocket& hListenSocket) { RandAddEvent((uint32_t)id); } +bool CConnman::AddConnection(const std::string& address, ConnectionType conn_type) +{ + if (conn_type != ConnectionType::OUTBOUND_FULL_RELAY && conn_type != ConnectionType::BLOCK_RELAY) return false; + + const int max_connections = conn_type == ConnectionType::OUTBOUND_FULL_RELAY ? m_max_outbound_full_relay : m_max_outbound_block_relay; + + // Count existing connections + int existing_connections = WITH_LOCK(cs_vNodes, + return std::count_if(vNodes.begin(), vNodes.end(), [conn_type](CNode* node) { return node->m_conn_type == conn_type; });); + + // Max connections of specified type already exist + if (existing_connections >= max_connections) return false; + + // Max total outbound connections already exist + CSemaphoreGrant grant(*semOutbound, true); + if (!grant) return false; + + OpenNetworkConnection(CAddress(), false, &grant, address.c_str(), conn_type); + return true; +} + void CConnman::DisconnectNodes() { { @@ -1196,37 +1217,47 @@ void CConnman::NotifyNumConnectionsChanged() } } -void CConnman::InactivityCheck(CNode *pnode) const +bool CConnman::InactivityCheck(const CNode& node) const { - int64_t nTime = GetSystemTimeInSeconds(); - if (nTime - pnode->nTimeConnected > m_peer_connect_timeout) - { - if (pnode->nLastRecv == 0 || pnode->nLastSend == 0) - { - LogPrint(BCLog::NET, "socket no message in first %i seconds, %d %d from %d\n", m_peer_connect_timeout, pnode->nLastRecv != 0, pnode->nLastSend != 0, pnode->GetId()); - pnode->fDisconnect = true; - } - else if (nTime - pnode->nLastSend > TIMEOUT_INTERVAL) - { - LogPrintf("socket sending timeout: %is\n", nTime - pnode->nLastSend); - pnode->fDisconnect = true; - } - else if (nTime - pnode->nLastRecv > TIMEOUT_INTERVAL) - { - LogPrintf("socket receive timeout: %is\n", nTime - pnode->nLastRecv); - pnode->fDisconnect = true; - } - else if (pnode->nPingNonceSent && pnode->m_ping_start.load() + std::chrono::seconds{TIMEOUT_INTERVAL} < GetTime<std::chrono::microseconds>()) - { - LogPrintf("ping timeout: %fs\n", 0.000001 * count_microseconds(GetTime<std::chrono::microseconds>() - pnode->m_ping_start.load())); - pnode->fDisconnect = true; - } - else if (!pnode->fSuccessfullyConnected) - { - LogPrint(BCLog::NET, "version handshake timeout from %d\n", pnode->GetId()); - pnode->fDisconnect = true; - } + // Use non-mockable system time (otherwise these timers will pop when we + // use setmocktime in the tests). + int64_t now = GetSystemTimeInSeconds(); + + if (now <= node.nTimeConnected + m_peer_connect_timeout) { + // Only run inactivity checks if the peer has been connected longer + // than m_peer_connect_timeout. + return false; + } + + if (node.nLastRecv == 0 || node.nLastSend == 0) { + LogPrint(BCLog::NET, "socket no message in first %i seconds, %d %d from %d\n", m_peer_connect_timeout, node.nLastRecv != 0, node.nLastSend != 0, node.GetId()); + return true; + } + + if (now > node.nLastSend + TIMEOUT_INTERVAL) { + LogPrintf("socket sending timeout: %is\n", now - node.nLastSend); + return true; } + + if (now > node.nLastRecv + TIMEOUT_INTERVAL) { + LogPrintf("socket receive timeout: %is\n", now - node.nLastRecv); + return true; + } + + if (node.nPingNonceSent && node.m_ping_start.load() + std::chrono::seconds{TIMEOUT_INTERVAL} < GetTime<std::chrono::microseconds>()) { + // We use mockable time for ping timeouts. This means that setmocktime + // may cause pings to time out for peers that have been connected for + // longer than m_peer_connect_timeout. + LogPrintf("ping timeout: %fs\n", 0.000001 * count_microseconds(GetTime<std::chrono::microseconds>() - node.m_ping_start.load())); + return true; + } + + if (!node.fSuccessfullyConnected) { + LogPrint(BCLog::NET, "version handshake timeout from %d\n", node.GetId()); + return true; + } + + return false; } bool CConnman::GenerateSelectSet(std::set<SOCKET> &recv_set, std::set<SOCKET> &send_set, std::set<SOCKET> &error_set) @@ -1502,7 +1533,7 @@ void CConnman::SocketHandler() if (bytes_sent) RecordBytesSent(bytes_sent); } - InactivityCheck(pnode); + if (InactivityCheck(*pnode)) pnode->fDisconnect = true; } { LOCK(cs_vNodes); |