freeradius/freeradius-ldap-infinite-timeout-on-starttls.patch
Antonio Torres 4f6ca3e9cc
ldap: use infinite timeout when using TLS to connect
Using an infinite timeout will make libldap use blocking thread for
establishing the TLS connection both when using StartTTLS and when using
LDAPS. This leaves the LDAP_OPT_NETWORK_TIMEOUT to its
default (-1) when using TLS connection.

Related: rhbz#1992551
Signed-off-by: Antonio Torres <antorres@redhat.com>
2022-01-30 19:50:59 +01:00

32 lines
1.2 KiB
Diff

From: Antonio Torres <antorres@redhat.com>
Date: Fri, 28 Jan 2022
Subject: Use infinite timeout when using LDAP+start-TLS
This will ensure that the TLS connection to the LDAP server will complete
before starting FreeRADIUS, as it forces libldap to use a blocking socket during
the process. Infinite timeout is the OpenLDAP default.
Avoids this: https://git.openldap.org/openldap/openldap/-/blob/87ffc60006298069a5a044b8e63dab27a61d3fdf/libraries/libldap/tls2.c#L1134
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1992551
Signed-off-by: Antonio Torres <antorres@redhat.com>
---
src/modules/rlm_ldap/ldap.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/modules/rlm_ldap/ldap.c b/src/modules/rlm_ldap/ldap.c
index cf7a84e069..841bf888a1 100644
--- a/src/modules/rlm_ldap/ldap.c
+++ b/src/modules/rlm_ldap/ldap.c
@@ -1472,7 +1472,10 @@ void *mod_conn_create(TALLOC_CTX *ctx, void *instance)
}
#ifdef LDAP_OPT_NETWORK_TIMEOUT
- if (inst->net_timeout) {
+ bool using_tls = inst->start_tls ||
+ inst->port == 636 ||
+ strncmp(inst->server, "ldaps://", strlen("ldaps://")) == 0;
+ if (inst->net_timeout && !using_tls) {
memset(&tv, 0, sizeof(tv));
tv.tv_sec = inst->net_timeout;