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155 lines
3.8 KiB
C
155 lines
3.8 KiB
C
/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1999-2012 The OpenLDAP Foundation.
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* Portions Copyright 2001-2003 Pierangelo Masarati.
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* Portions Copyright 1999-2003 Howard Chu.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* ACKNOWLEDGEMENTS:
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* This work was initially developed by the Howard Chu for inclusion
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* in OpenLDAP Software and subsequently enhanced by Pierangelo
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* Masarati.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/socket.h>
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#include "slap.h"
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#include "../back-ldap/back-ldap.h"
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#include "back-meta.h"
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int
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meta_back_compare( Operation *op, SlapReply *rs )
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{
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metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
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metatarget_t *mt;
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metaconn_t *mc;
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int rc = 0;
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int candidate = -1;
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struct berval mdn = BER_BVNULL;
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dncookie dc;
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struct berval mapped_attr = op->orc_ava->aa_desc->ad_cname;
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struct berval mapped_value = op->orc_ava->aa_value;
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int msgid;
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ldap_back_send_t retrying = LDAP_BACK_RETRYING;
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LDAPControl **ctrls = NULL;
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mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR );
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if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) {
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return rs->sr_err;
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}
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assert( mc->mc_conns[ candidate ].msc_ld != NULL );
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/*
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* Rewrite the modify dn, if needed
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*/
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mt = mi->mi_targets[ candidate ];
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dc.target = mt;
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dc.conn = op->o_conn;
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dc.rs = rs;
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dc.ctx = "compareDN";
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switch ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
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case LDAP_UNWILLING_TO_PERFORM:
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rc = 1;
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goto cleanup;
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default:
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break;
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}
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/*
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* if attr is objectClass, try to remap the value
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*/
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if ( op->orc_ava->aa_desc == slap_schema.si_ad_objectClass ) {
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ldap_back_map( &mt->mt_rwmap.rwm_oc,
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&op->orc_ava->aa_value,
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&mapped_value, BACKLDAP_MAP );
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if ( BER_BVISNULL( &mapped_value ) || BER_BVISEMPTY( &mapped_value ) ) {
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goto cleanup;
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}
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/*
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* else try to remap the attribute
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*/
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} else {
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ldap_back_map( &mt->mt_rwmap.rwm_at,
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&op->orc_ava->aa_desc->ad_cname,
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&mapped_attr, BACKLDAP_MAP );
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if ( BER_BVISNULL( &mapped_attr ) || BER_BVISEMPTY( &mapped_attr ) ) {
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goto cleanup;
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}
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if ( op->orc_ava->aa_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName )
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{
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dc.ctx = "compareAttrDN";
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switch ( ldap_back_dn_massage( &dc, &op->orc_ava->aa_value, &mapped_value ) )
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{
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case LDAP_UNWILLING_TO_PERFORM:
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rc = 1;
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goto cleanup;
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default:
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break;
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}
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}
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}
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retry:;
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ctrls = op->o_ctrls;
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rc = meta_back_controls_add( op, rs, mc, candidate, &ctrls );
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if ( rc != LDAP_SUCCESS ) {
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send_ldap_result( op, rs );
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goto cleanup;
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}
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rs->sr_err = ldap_compare_ext( mc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
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mapped_attr.bv_val, &mapped_value,
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ctrls, NULL, &msgid );
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rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid,
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mt->mt_timeout[ SLAP_OP_COMPARE ], ( LDAP_BACK_SENDRESULT | retrying ) );
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if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
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retrying &= ~LDAP_BACK_RETRYING;
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if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) {
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/* if the identity changed, there might be need to re-authz */
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(void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
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goto retry;
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}
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}
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cleanup:;
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(void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
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if ( mdn.bv_val != op->o_req_dn.bv_val ) {
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free( mdn.bv_val );
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}
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if ( op->orc_ava->aa_value.bv_val != mapped_value.bv_val ) {
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free( mapped_value.bv_val );
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}
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if ( mc ) {
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meta_back_release_conn( mi, mc );
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}
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return rs->sr_err;
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}
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