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
40 int
ldap_back_conn_destroy(Backend * be,Connection * conn)41 ldap_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