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mr_server: Handle certificate validation errors.

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When certificate validation fails, the certificate fingerprint won't be
calculated, resulting in an attempt to format NULL into a log line
showing the fingerprint. Instead, add a different error message for
missing fingerprint (i.e. validation failed).
This commit is contained in:
Keith Buck 2016-12-09 10:01:22 +00:00
parent 5fd7e2bb8c
commit a91a4515c9
1 changed files with 18 additions and 6 deletions
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14
modules/core/m_server.c
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@ -189,13 +189,25 @@ mr_server(struct Client *client_p, struct Client *source_p, int parc, const char
exit_client(client_p, client_p, client_p, "Access denied, requires SSL/TLS but is plaintext");
return 0;
case -6:
if (client_p->certfp)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"Connection from servername %s has invalid certificate fingerprint %s",
name, client_p->certfp);
ilog(L_SERVER, "Access denied, invalid certificate fingerprint %s from %s",
client_p->certfp, log_client_name(client_p, SHOW_IP));
exit_client(client_p, client_p, client_p, "Invalid fingerprint.");
}
else
{
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"Connection from servername %s failed certificate validation",
name);
ilog(L_SERVER, "Access denied; certificate validation failed for certificate from %s",
log_client_name(client_p, SHOW_IP));
exit_client(client_p, client_p, client_p, "Invalid certificate.");
}
return 0;
default:
sendto_realops_snomask(SNO_GENERAL, L_ALL,