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unbind.c revision 1.1.1.8 
      1 /*	$NetBSD: unbind.c,v 1.1.1.8 2020/08/11 13:12:15 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 1999-2020 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 1.1.1.8 2020/08/11 13:12:15 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
     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, 0, 0 );
     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 = avl_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