openldap/servers/slapd/back-meta/unbind.c

/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
 *
 * Copyright 1999-2003 The OpenLDAP Foundation.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted only as authorized by the OpenLDAP
 * Public License.
 *
 * A copy of this license is available in the file LICENSE in the
 * top-level directory of the distribution or, alternatively, at
 * <http://www.OpenLDAP.org/license.html>.
 */
/* ACKNOWLEDGEMENTS:
 * This work was initially developed by the Howard Chu for inclusion
 * in OpenLDAP Software and subsequently enhanced by Pierangelo
 * Masarati.
 */
/* This is an altered version */
/*
 * Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
 * 
 * This work has been developed to fulfill the requirements
 * of SysNet s.n.c. <http:www.sys-net.it> and it has been donated
 * to the OpenLDAP Foundation in the hope that it may be useful
 * to the Open Source community, but WITHOUT ANY WARRANTY.
 *
 * Permission is granted to anyone to use this software for any purpose
 * on any computer system, and to alter it and redistribute it, subject
 * to the following restrictions:
 *
 * 1. The author and SysNet s.n.c. are not responsible for the consequences
 *    of use of this software, no matter how awful, even if they arise from 
 *    flaws in it.
 *
 * 2. The origin of this software must not be misrepresented, either by
 *    explicit claim or by omission.  Since few users ever read sources,
 *    credits should appear in the documentation.
 *
 * 3. Altered versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.  Since few users
 *    ever read sources, credits should appear in the documentation.
 *    SysNet s.n.c. cannot be responsible for the consequences of the
 *    alterations.
 *
 * 4. This notice may not be removed or altered.
 *
 *
 * This software is based on the backend back-ldap, implemented
 * by Howard Chu <hyc@highlandsun.com>, and modified by Mark Valence
 * <kurash@sassafras.com>, Pierangelo Masarati <ando@sys-net.it> and other
 * contributors. The contribution of the original software to the present
 * implementation is acknowledged in this copyright statement.
 *
 * A special acknowledgement goes to Howard for the overall architecture
 * (and for borrowing large pieces of code), and to Mark, who implemented
 * from scratch the attribute/objectclass mapping.
 *
 * The original copyright statement follows.
 *
 * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
 *
 * Permission is granted to anyone to use this software for any purpose
 * on any computer system, and to alter it and redistribute it, subject
 * to the following restrictions:
 *
 * 1. The author is not responsible for the consequences of use of this
 *    software, no matter how awful, even if they arise from flaws in it.
 *
 * 2. The origin of this software must not be misrepresented, either by
 *    explicit claim or by omission.  Since few users ever read sources,
 *    credits should appear in the documentation.
 *
 * 3. Altered versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.  Since few users
 *    ever read sources, credits should appear in the
 *    documentation.
 *
 * 4. This notice may not be removed or altered.
 *
 */

#include "portable.h"

#include <stdio.h>

#include <ac/socket.h>
#include <ac/string.h>

#include "slap.h"
#include "../back-ldap/back-ldap.h"
#include "back-meta.h"

int
meta_back_conn_destroy(
		Backend		*be,
		Connection	*conn
)
{
	struct metainfo	*li = ( struct metainfo * )be->be_private;
	struct metaconn *lc, lc_curr;

#ifdef NEW_LOGGING
	LDAP_LOG( BACK_META, ENTRY,
		"meta_back_conn_destroy: fetching conn %ld\n", conn->c_connid, 0, 0 );
#else /* !NEW_LOGGING */
	Debug( LDAP_DEBUG_TRACE,
		"=>meta_back_conn_destroy: fetching conn %ld\n%s%s",
		conn->c_connid, "", "" );
#endif /* !NEW_LOGGING */
	
	lc_curr.conn = conn;
	
	ldap_pvt_thread_mutex_lock( &li->conn_mutex );
	lc = avl_delete( &li->conntree, ( caddr_t )&lc_curr,
			meta_back_conn_cmp );
	ldap_pvt_thread_mutex_unlock( &li->conn_mutex );

	if ( lc ) {
		int i;
		
#ifdef NEW_LOGGING
		LDAP_LOG( BACK_META, INFO,
			"meta_back_conn_destroy: destroying conn %ld\n",
			lc->conn->c_connid, 0, 0 );
#else /* !NEW_LOGGING */
		Debug( LDAP_DEBUG_TRACE,
			"=>meta_back_conn_destroy: destroying conn %ld\n%s%s",
			lc->conn->c_connid, "", "" );
#endif /* !NEW_LOGGING */
		
		/*
		 * Cleanup rewrite session
		 */
		for ( i = 0; i < li->ntargets; ++i ) {
			if ( lc->conns[ i ].ld == NULL ) {
				continue;
			}

			rewrite_session_delete( li->targets[ i ]->rwmap.rwm_rw, conn );
			meta_clear_one_candidate( &lc->conns[ i ], 1 );
		}

		free( lc->conns );
		free( lc );
	}

	/* no response to unbind */

	return 0;
}