1 /* $NetBSD: unbind.c,v 1.3 2021/08/14 16:15:00 christos Exp $ */
2
3 /* $OpenLDAP$ */
4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 *
6 * Copyright 1999-2021 The OpenLDAP Foundation.
7 * Portions Copyright 2001-2003 Pierangelo Masarati.
8 * Portions Copyright 1999-2003 Howard Chu.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted only as authorized by the OpenLDAP
13 * Public License.
14 *
15 * A copy of this license is available in the file LICENSE in the
16 * top-level directory of the distribution or, alternatively, at
17 * <http://www.OpenLDAP.org/license.html>.
18 */
19 /* ACKNOWLEDGEMENTS:
20 * This work was initially developed by the Howard Chu for inclusion
21 * in OpenLDAP Software and subsequently enhanced by Pierangelo
22 * Masarati.
23 */
24
25 #include <sys/cdefs.h>
26 __RCSID("$NetBSD: unbind.c,v 1.3 2021/08/14 16:15:00 christos Exp $");
27
28 #include "portable.h"
29
30 #include <stdio.h>
31
32 #include <ac/errno.h>
33 #include <ac/socket.h>
34 #include <ac/string.h>
35
36 #include "slap.h"
37 #include "../back-ldap/back-ldap.h"
38 #include "back-meta.h"
39
40 int
meta_back_conn_destroy(Backend * be,Connection * conn)41 meta_back_conn_destroy(
42 Backend *be,
43 Connection *conn )
44 {
45 metainfo_t *mi = ( metainfo_t * )be->be_private;
46 metaconn_t *mc,
47 mc_curr = {{ 0 }};
48 int i;
49
50
51 Debug( LDAP_DEBUG_TRACE,
52 "=>meta_back_conn_destroy: fetching conn=%ld DN=\"%s\"\n",
53 conn->c_connid,
54 BER_BVISNULL( &conn->c_ndn ) ? "" : conn->c_ndn.bv_val );
55
56 mc_curr.mc_conn = conn;
57
58 ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
59 #if META_BACK_PRINT_CONNTREE > 0
60 meta_back_print_conntree( mi, ">>> meta_back_conn_destroy" );
61 #endif /* META_BACK_PRINT_CONNTREE */
62 while ( ( mc = ldap_tavl_delete( &mi->mi_conninfo.lai_tree, ( caddr_t )&mc_curr, meta_back_conn_cmp ) ) != NULL )
63 {
64 assert( !LDAP_BACK_PCONN_ISPRIV( mc ) );
65 Debug( LDAP_DEBUG_TRACE,
66 "=>meta_back_conn_destroy: destroying conn %lu "
67 "refcnt=%d flags=0x%08x\n",
68 mc->mc_conn->c_connid, mc->mc_refcnt, mc->msc_mscflags );
69
70 if ( mc->mc_refcnt > 0 ) {
71 /* someone else might be accessing the connection;
72 * mark for deletion */
73 LDAP_BACK_CONN_CACHED_CLEAR( mc );
74 LDAP_BACK_CONN_TAINTED_SET( mc );
75
76 } else {
77 meta_back_conn_free( mc );
78 }
79 }
80 #if META_BACK_PRINT_CONNTREE > 0
81 meta_back_print_conntree( mi, "<<< meta_back_conn_destroy" );
82 #endif /* META_BACK_PRINT_CONNTREE */
83 ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
84
85 /*
86 * Cleanup rewrite session
87 */
88 for ( i = 0; i < mi->mi_ntargets; ++i ) {
89 rewrite_session_delete( mi->mi_targets[ i ]->mt_rwmap.rwm_rw, conn );
90 }
91
92 return 0;
93 }
94
95