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Commit8a0fa9c

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Add host name resolution information to pg_hba.conf error messages
This is to be able to analyze issues with host names in pg_hba.conf.
1 parenta31dc39 commit8a0fa9c

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1 file changed

+19
-4
lines changed

1 file changed

+19
-4
lines changed

‎src/backend/libpq/auth.c

Lines changed: 19 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -439,19 +439,32 @@ ClientAuthentication(Port *port)
439439
NULL,0,
440440
NI_NUMERICHOST);
441441

442+
#defineHOSTNAME_LOOKUP_DETAIL(port) \
443+
(port->remote_hostname \
444+
? (port->remote_hostname_resolv == +1\
445+
? errdetail_log("Client IP address resolved to \"%s\", forward lookup matches.", port->remote_hostname) \
446+
: (port->remote_hostname_resolv == 0\
447+
? errdetail_log("Client IP address resolved to \"%s\", forward lookup not checked.", port->remote_hostname) \
448+
: (port->remote_hostname_resolv == -1\
449+
? errdetail_log("Client IP address resolved to \"%s\", forward lookup does not match.", port->remote_hostname) \
450+
: 0)))\
451+
: 0)
452+
442453
if (am_walsender)
443454
{
444455
#ifdefUSE_SSL
445456
ereport(FATAL,
446457
(errcode(ERRCODE_INVALID_AUTHORIZATION_SPECIFICATION),
447458
errmsg("no pg_hba.conf entry for replication connection from host \"%s\", user \"%s\", %s",
448459
hostinfo,port->user_name,
449-
port->ssl ?_("SSL on") :_("SSL off"))));
460+
port->ssl ?_("SSL on") :_("SSL off")),
461+
HOSTNAME_LOOKUP_DETAIL(port)));
450462
#else
451463
ereport(FATAL,
452464
(errcode(ERRCODE_INVALID_AUTHORIZATION_SPECIFICATION),
453465
errmsg("no pg_hba.conf entry for replication connection from host \"%s\", user \"%s\"",
454-
hostinfo,port->user_name)));
466+
hostinfo,port->user_name),
467+
HOSTNAME_LOOKUP_DETAIL(port)));
455468
#endif
456469
}
457470
else
@@ -462,13 +475,15 @@ ClientAuthentication(Port *port)
462475
errmsg("no pg_hba.conf entry for host \"%s\", user \"%s\", database \"%s\", %s",
463476
hostinfo,port->user_name,
464477
port->database_name,
465-
port->ssl ?_("SSL on") :_("SSL off"))));
478+
port->ssl ?_("SSL on") :_("SSL off")),
479+
HOSTNAME_LOOKUP_DETAIL(port)));
466480
#else
467481
ereport(FATAL,
468482
(errcode(ERRCODE_INVALID_AUTHORIZATION_SPECIFICATION),
469483
errmsg("no pg_hba.conf entry for host \"%s\", user \"%s\", database \"%s\"",
470484
hostinfo,port->user_name,
471-
port->database_name)));
485+
port->database_name),
486+
HOSTNAME_LOOKUP_DETAIL(port)));
472487
#endif
473488
}
474489
break;

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