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net: Quiet down logging when router doesn't support natpmp/pcp 

When the router doesn't support natpmp and PCP, one'd normally expect
the UDP packet to be ignored, and hit a time out. This logs a warning
that is already in the debug category. However, there's also the case in
which sending an UDP packet causes a ICMP response. This is returned to
user space as "connection refused" (despite UDP having no concept of
connections).

Move the warnings from `Send` and `Recv` to debug level too, to reduce
log spam in that case.

Closes #33301.
This commit is contained in:
laanwj 2025-09-04 21:22:49 +02:00
parent e1ce0c525c
commit 4f1a4cbccd
1 changed files with 2 additions and 2 deletions
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4
src/common/pcp.cpp
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@ -230,7 +230,7 @@ std::optional<std::vector<uint8_t>> PCPSendRecv(Sock &sock, const std::string &p
}
// Dispatch packet to gateway.
if (sock.Send(request.data(), request.size(), 0) != static_cast<ssize_t>(request.size())) {
LogPrintLevel(BCLog::NET, BCLog::Level::Warning, "%s: Could not send request: %s\n", protocol, NetworkErrorString(WSAGetLastError()));
LogPrintLevel(BCLog::NET, BCLog::Level::Debug, "%s: Could not send request: %s\n", protocol, NetworkErrorString(WSAGetLastError()));
return std::nullopt; // Network-level error, probably no use retrying.
}
@ -251,7 +251,7 @@ std::optional<std::vector<uint8_t>> PCPSendRecv(Sock &sock, const std::string &p
// Receive response.
recvsz = sock.Recv(response, sizeof(response), MSG_DONTWAIT);
if (recvsz < 0) {
LogPrintLevel(BCLog::NET, BCLog::Level::Warning, "%s: Could not receive response: %s\n", protocol, NetworkErrorString(WSAGetLastError()));
LogPrintLevel(BCLog::NET, BCLog::Level::Debug, "%s: Could not receive response: %s\n", protocol, NetworkErrorString(WSAGetLastError()));
return std::nullopt; // Network-level error, probably no use retrying.
}
LogPrintLevel(BCLog::NET, BCLog::Level::Debug, "%s: Received response of %d bytes: %s\n", protocol, recvsz, HexStr(std::span(response, recvsz)));