On Fri, 6 Oct 2023, Jozsef Kadlecsik via Postfix-users wrote:
> However it's a debug mode, cannot be used in production. It is clear that
> SASL protocol is not implemented and thus the messages have no meaning,
> just reported. However, it seems the data is there and available.
>
> Would you consider applying a patch something like this:
Or better in order to escape strange characters:
diff --git a/src/smtpd/smtpd_sasl_glue.c b/src/smtpd/smtpd_sasl_glue.c
index 020c830..f58fb92 100644
--- a/src/smtpd/smtpd_sasl_glue.c
+++ b/src/smtpd/smtpd_sasl_glue.c
@@ -320,10 +320,20 @@ int smtpd_sasl_authenticate(SMTPD_STATE *state,
return (-1);
}
}
+ sasl_username = xsasl_server_get_username(state->sasl_server);
+ if (sasl_username != 0) {
+ state->sasl_username = mystrdup(sasl_username);
+ printable(state->sasl_username, '?');
+ }
if (status != XSASL_AUTH_DONE) {
- msg_warn("%s: SASL %s authentication failed: %s",
- state->namaddr, sasl_method,
- STR(state->sasl_reply));
+ if (sasl_username == 0)
+ msg_warn("%s: SASL %s authentication failed: %s",
+ state->namaddr, sasl_method,
+ STR(state->sasl_reply));
+ else
+ msg_warn("%s: SASL %s authentication failed: %s, sasl_username=%s",
+ state->namaddr, sasl_method,
+ STR(state->sasl_reply), state->sasl_username);
/* RFC 4954 Section 6. */
if (status == XSASL_AUTH_TEMP)
smtpd_chat_reply(state, "454 4.7.0 Temporary authentication
failure: %s",
@@ -335,10 +345,8 @@ int smtpd_sasl_authenticate(SMTPD_STATE *state,
}
/* RFC 4954 Section 6. */
smtpd_chat_reply(state, "235 2.7.0 Authentication successful");
- if ((sasl_username = xsasl_server_get_username(state->sasl_server)) == 0)
+ if (sasl_username == 0)
msg_panic("cannot look up the authenticated SASL username");
- state->sasl_username = mystrdup(sasl_username);
- printable(state->sasl_username, '?');
state->sasl_method = mystrdup(sasl_method);
printable(state->sasl_method, '?');
Best regards,
Jozsef
-
E-mail : kad...@blackhole.kfki.hu, kadlecsik.joz...@wigner.hu
PGP key : https://wigner.hu/~kadlec/pgp_public_key.txt
Address : Wigner Research Centre for Physics
H-1525 Budapest 114, POB. 49, Hungary
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