autofs-5.0.3 - renew sasl creds upon reconnect fail

From: Ian Kent <raven@themaw.net>

If a server re-connect fails it could be due to the authentication
credentail having timed out. So we need to dispose of this and retry
the connection including refreshing re-authenticating.
---

 modules/lookup_ldap.c |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)


--- autofs-5.0.3.orig/modules/lookup_ldap.c
+++ autofs-5.0.3/modules/lookup_ldap.c
@@ -675,6 +675,13 @@ static LDAP *do_reconnect(unsigned logop
 
 	if (ctxt->server || !ctxt->uris) {
 		ldap = do_connect(logopt, ctxt->server, ctxt);
+#ifdef WITH_SASL
+		/* Dispose of the sasl authentication connection and try again. */
+		if (!ldap) {
+			autofs_sasl_dispose(ctxt);
+			ldap = connect_to_server(logopt, ctxt->server, ctxt);
+		}
+#endif
 		return ldap;
 	}
 
@@ -682,6 +689,16 @@ static LDAP *do_reconnect(unsigned logop
 	this = ctxt->uri;
 	uris_mutex_unlock(ctxt);
 	ldap = do_connect(logopt, this->uri, ctxt);
+#ifdef WITH_SASL
+	/*
+	 * Dispose of the sasl authentication connection and try the
+	 * current server again before trying other servers in the list.
+	 */
+	if (!ldap) {
+		autofs_sasl_dispose(ctxt);
+		ldap = connect_to_server(logopt, this->uri, ctxt);
+	}
+#endif
 	if (ldap)
 		return ldap;