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authorPeter Eisentraut <peter_e@gmx.net>2016-04-08 10:45:16 -0400
committerPeter Eisentraut <peter_e@gmx.net>2016-04-08 10:48:44 -0400
commit2f1d2b7a75fecad25295cb3f453503eb6a176d4f (patch)
tree8404aa676cf8aeb71bce8a76c8e554633686b856 /src/backend/libpq/auth.c
parent4e55b3f0335c2aa658cd9d1fda4dea2a1f9ab80d (diff)
Set PAM_RHOST item for PAM authentication
The PAM_RHOST item is set to the remote IP address or host name and can be used by PAM modules. A pg_hba.conf option is provided to choose between IP address and resolved host name. From: Grzegorz Sampolski <grzsmp@gmail.com> Reviewed-by: Haribabu Kommi <kommi.haribabu@gmail.com>
Diffstat (limited to 'src/backend/libpq/auth.c')
-rw-r--r--src/backend/libpq/auth.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/backend/libpq/auth.c b/src/backend/libpq/auth.c
index f21056e2445..630762cc6b9 100644
--- a/src/backend/libpq/auth.c
+++ b/src/backend/libpq/auth.c
@@ -1739,6 +1739,18 @@ CheckPAMAuth(Port *port, char *user, char *password)
{
int retval;
pam_handle_t *pamh = NULL;
+ char hostinfo[NI_MAXHOST];
+
+ retval = pg_getnameinfo_all(&port->raddr.addr, port->raddr.salen,
+ hostinfo, sizeof(hostinfo), NULL, 0,
+ port->hba->pam_use_hostname ? 0 : NI_NUMERICHOST | NI_NUMERICSERV);
+ if (retval != 0)
+ {
+ ereport(WARNING,
+ (errmsg_internal("pg_getnameinfo_all() failed: %s",
+ gai_strerror(retval))));
+ return STATUS_ERROR;
+ }
/*
* We can't entirely rely on PAM to pass through appdata --- it appears
@@ -1784,6 +1796,17 @@ CheckPAMAuth(Port *port, char *user, char *password)
return STATUS_ERROR;
}
+ retval = pam_set_item(pamh, PAM_RHOST, hostinfo);
+
+ if (retval != PAM_SUCCESS)
+ {
+ ereport(LOG,
+ (errmsg("pam_set_item(PAM_RHOST) failed: %s",
+ pam_strerror(pamh, retval))));
+ pam_passwd = NULL;
+ return STATUS_ERROR;
+ }
+
retval = pam_set_item(pamh, PAM_CONV, &pam_passw_conv);
if (retval != PAM_SUCCESS)