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Problem: very hard to debug security mechanism mismatch

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E.g. when server is not configured, and client tries PLAIN security,
there is no hint of why this does not work.

Solution: add debugging output for this case. Note that the various
debugging outputs for security failures should probably be sent to
an inproc monitor of some kind.
This commit is contained in:
Pieter Hintjens 2014-12-19 22:17:14 +01:00
parent 187c743841
commit 17937ffcf0
1 changed files with 12 additions and 0 deletions
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12
src/stream_engine.cpp
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@ -660,6 +660,18 @@ bool zmq::stream_engine_t::handshake ()
}
#endif
else {
// Temporary support for security debugging
char mechanism [21];
memcpy (mechanism, greeting_recv + 12, 20);
mechanism [20] = 0;
printf ("LIBZMQ I: security failure, self=%s peer=%s\n",
options.mechanism == ZMQ_NULL? "NULL":
options.mechanism == ZMQ_PLAIN? "PLAIN":
options.mechanism == ZMQ_CURVE? "CURVE":
options.mechanism == ZMQ_GSSAPI? "GSSAPI":
"OTHER",
mechanism);
error (protocol_error);
return false;
}