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Merge #17762: net: Log to net category for exceptions in ProcessMessages

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4bdd68f301 Add missing typeinfo includes (Wladimir J. van der Laan)
4d88c3dcb6 net: Log to net category for exceptions in ProcessMessages (Wladimir J. van der Laan)

Pull request description:

  Remove the forest of special exceptions based on string matching, and simply log a short message to the NET logging category when an exception happens during packet processing. It is not good to panick end users with verbose errors (let alone writing to stderr) when any peer can generate them.

ACKs for top commit:
  MarcoFalke:
    re-ACK 4bdd68f301 (only change is adding includes) 🕕
  promag:
    ACK 4bdd68f301, could squash.

Tree-SHA512: a005591a3202b005c75e01dfa54249db3992e2f9eefa8b3d9d435acf66130417716ed926ce4e045179cf43788f1abc7362d999750681a9c80b318373d611c366
This commit is contained in:
Wladimir J. van der Laan 2020-01-02 21:38:26 +01:00
parent 52900a764c 4bdd68f301
commit 190a4051fd
No known key found for this signature in database
GPG key ID: 1E4AED62986CD25D
2 changed files with 5 additions and 25 deletions
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29
src/net_processing.cpp
View file

@ -29,6 +29,7 @@
#include <util/validation.h>
#include <memory>
#include <typeinfo>
#if defined(NDEBUG)
# error "Bitcoin cannot be compiled without assertions."
@ -3333,32 +3334,10 @@ bool PeerLogicValidation::ProcessMessages(CNode* pfrom, std::atomic<bool>& inter
return false;
if (!pfrom->vRecvGetData.empty())
fMoreWork = true;
}
catch (const std::ios_base::failure& e)
{
if (strstr(e.what(), "end of data")) {
// Allow exceptions from under-length message on vRecv
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
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
LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what());
} else if (strstr(e.what(), "Superfluous witness record")) {
// Allow exceptions from illegal witness encoding
LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what());
} else if (strstr(e.what(), "Unknown transaction optional data")) {
// Allow exceptions from unknown witness encoding
LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what());
} else {
PrintExceptionContinue(&e, "ProcessMessages()");
}
}
catch (const std::exception& e) {
PrintExceptionContinue(&e, "ProcessMessages()");
} catch (const std::exception& e) {
LogPrint(BCLog::NET, "%s(%s, %u bytes): Exception '%s' (%s) caught\n", __func__, SanitizeString(strCommand), nMessageSize, e.what(), typeid(e).name());
} catch (...) {
PrintExceptionContinue(nullptr, "ProcessMessages()");
LogPrint(BCLog::NET, "%s(%s, %u bytes): Unknown exception caught\n", __func__, SanitizeString(strCommand), nMessageSize);
}
if (!fRet) {

1
src/util/system.cpp
View file

@ -64,6 +64,7 @@
#endif
#include <thread>
#include <typeinfo>
#include <univalue.h>
// Application startup time (used for uptime calculation)