1/*	$NetBSD: unbind.c,v 1.3 2021/08/14 16:14:59 christos Exp $	*/
2
3/* unbind.c - ldap backend unbind function */
4/* $OpenLDAP$ */
5/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 1999-2021 The OpenLDAP Foundation.
8 * Portions Copyright 1999-2003 Howard Chu.
9 * Portions Copyright 2000-2003 Pierangelo Masarati.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted only as authorized by the OpenLDAP
14 * Public License.
15 *
16 * A copy of this license is available in the file LICENSE in the
17 * top-level directory of the distribution or, alternatively, at
18 * <http://www.OpenLDAP.org/license.html>.
19 */
20/* ACKNOWLEDGEMENTS:
21 * This work was initially developed by the Howard Chu for inclusion
22 * in OpenLDAP Software and subsequently enhanced by Pierangelo
23 * Masarati.
24 */
25
26#include <sys/cdefs.h>
27__RCSID("$NetBSD: unbind.c,v 1.3 2021/08/14 16:14:59 christos Exp $");
28
29#include "portable.h"
30
31#include <stdio.h>
32
33#include <ac/errno.h>
34#include <ac/socket.h>
35#include <ac/string.h>
36
37#include "slap.h"
38#include "back-ldap.h"
39
40int
41ldap_back_conn_destroy(
42		Backend		*be,
43		Connection	*conn
44)
45{
46	ldapinfo_t	*li = (ldapinfo_t *) be->be_private;
47	ldapconn_t	*lc = NULL, lc_curr;
48
49	Debug( LDAP_DEBUG_TRACE,
50		"=>ldap_back_conn_destroy: fetching conn %ld\n",
51		conn->c_connid );
52
53	lc_curr.lc_conn = conn;
54
55	ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
56#if LDAP_BACK_PRINT_CONNTREE > 0
57	ldap_back_print_conntree( li, ">>> ldap_back_conn_destroy" );
58#endif /* LDAP_BACK_PRINT_CONNTREE */
59	while ( ( lc = ldap_tavl_delete( &li->li_conninfo.lai_tree, (caddr_t)&lc_curr, ldap_back_conn_cmp ) ) != NULL )
60	{
61		assert( !LDAP_BACK_PCONN_ISPRIV( lc ) );
62		Debug( LDAP_DEBUG_TRACE,
63			"=>ldap_back_conn_destroy: destroying conn %lu "
64			"refcnt=%d flags=0x%08x\n",
65			lc->lc_conn->c_connid, lc->lc_refcnt, lc->lc_lcflags );
66
67		if ( lc->lc_refcnt > 0 ) {
68			/* someone else might be accessing the connection;
69			 * mark for deletion */
70			LDAP_BACK_CONN_CACHED_CLEAR( lc );
71			LDAP_BACK_CONN_TAINTED_SET( lc );
72
73		} else {
74			ldap_back_conn_free( lc );
75		}
76	}
77#if LDAP_BACK_PRINT_CONNTREE > 0
78	ldap_back_print_conntree( li, "<<< ldap_back_conn_destroy" );
79#endif /* LDAP_BACK_PRINT_CONNTREE */
80	ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
81
82	return 0;
83}
84