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server: return SSH_OK for ignored SSH_MSG_KEXDH_INIT case

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Return SSH_OK for the case that an incoming SSH_MSG_KEXDH_INIT should be
ignored.  That is, for the case that the initial 'first_kex_packet_follows'
guess is incorrect.  Before this change sessions served with libssh can be
observed to error out unexpectedly early when testing with dropbear clients
that send an incompatible guess.

Signed-off-by: Jon Simons <jon@jonsimons.org>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Jon Simons
2015-05-04 16:21:58 -07:00
committed by Andreas Schneider
parent 3eaad77de2
commit f134cb3d57
1 changed files with 1 additions and 0 deletions
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src/server.c
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@@ -187,6 +187,7 @@ SSH_PACKET_CALLBACK(ssh_packet_kexdh_init){
SSH_LOG(SSH_LOG_RARE, "first_kex_packet_follows guess was wrong, "
"ignoring first SSH_MSG_KEXDH_INIT message");
session->first_kex_follows_guess_wrong = 0;
rc = SSH_OK;
goto error;
}