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238 lines
6.5 KiB
C
238 lines
6.5 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 1998-2007 The OpenLDAP Foundation.
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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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/* Portions Copyright (c) 1995 Regents of the University of Michigan.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and that due credit is given
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* to the University of Michigan at Ann Arbor. The name of the University
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* may not be used to endorse or promote products derived from this
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* software without specific prior written permission. This software
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* is provided ``as is'' without express or implied warranty.
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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 "lutil.h"
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int
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do_delete(
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Operation *op,
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SlapReply *rs )
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{
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struct berval dn = BER_BVNULL;
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Debug( LDAP_DEBUG_TRACE, "%s do_delete\n",
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op->o_log_prefix, 0, 0 );
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/*
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* Parse the delete request. It looks like this:
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*
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* DelRequest := DistinguishedName
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*/
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if ( ber_scanf( op->o_ber, "m", &dn ) == LBER_ERROR ) {
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Debug( LDAP_DEBUG_ANY, "%s do_delete: ber_scanf failed\n",
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op->o_log_prefix, 0, 0 );
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send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
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return SLAPD_DISCONNECT;
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}
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if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_ANY, "%s do_delete: get_ctrls failed\n",
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op->o_log_prefix, 0, 0 );
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goto cleanup;
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}
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rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
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op->o_tmpmemctx );
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if( rs->sr_err != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_ANY, "%s do_delete: invalid dn (%s)\n",
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op->o_log_prefix, dn.bv_val, 0 );
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send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
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goto cleanup;
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}
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Statslog( LDAP_DEBUG_STATS, "%s DEL dn=\"%s\"\n",
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op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
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if( op->o_req_ndn.bv_len == 0 ) {
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Debug( LDAP_DEBUG_ANY, "%s do_delete: root dse!\n",
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op->o_log_prefix, 0, 0 );
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/* protocolError would likely be a more appropriate error */
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send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
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"cannot delete the root DSE" );
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goto cleanup;
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} else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
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Debug( LDAP_DEBUG_ANY, "%s do_delete: subschema subentry!\n",
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op->o_log_prefix, 0, 0 );
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/* protocolError would likely be a more appropriate error */
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send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
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"cannot delete the root DSE" );
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goto cleanup;
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}
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op->o_bd = frontendDB;
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rs->sr_err = frontendDB->be_delete( op, rs );
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#ifdef LDAP_X_TXN
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if( rs->sr_err == LDAP_X_TXN_SPECIFY_OKAY ) {
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/* skip cleanup */
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return rs->sr_err;
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}
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#endif
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cleanup:;
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op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
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op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
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return rs->sr_err;
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}
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int
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fe_op_delete( Operation *op, SlapReply *rs )
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{
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struct berval pdn = BER_BVNULL;
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BackendDB *op_be, *bd = op->o_bd;
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/*
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* We could be serving multiple database backends. Select the
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* appropriate one, or send a referral to our "referral server"
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* if we don't hold it.
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*/
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op->o_bd = select_backend( &op->o_req_ndn, 1 );
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if ( op->o_bd == NULL ) {
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op->o_bd = bd;
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rs->sr_ref = referral_rewrite( default_referral,
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NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
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if (!rs->sr_ref) rs->sr_ref = default_referral;
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if ( rs->sr_ref != NULL ) {
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rs->sr_err = LDAP_REFERRAL;
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send_ldap_result( op, rs );
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if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
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} else {
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send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
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"no global superior knowledge" );
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}
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goto cleanup;
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}
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/* If we've got a glued backend, check the real backend */
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op_be = op->o_bd;
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if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
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op->o_bd = select_backend( &op->o_req_ndn, 0 );
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}
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/* check restrictions */
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if( backend_check_restrictions( op, rs, NULL ) != 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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/* check for referrals */
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if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
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goto cleanup;
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}
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/*
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* do the delete if 1 && (2 || 3)
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* 1) there is a delete function implemented in this backend;
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* 2) this backend is master for what it holds;
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* 3) it's a replica and the dn supplied is the update_ndn.
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*/
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if ( op->o_bd->be_delete ) {
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/* do the update here */
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int repl_user = be_isupdate( op );
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if ( !SLAP_SINGLE_SHADOW(op->o_bd) || repl_user ) {
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struct berval org_req_dn = BER_BVNULL;
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struct berval org_req_ndn = BER_BVNULL;
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struct berval org_dn = BER_BVNULL;
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struct berval org_ndn = BER_BVNULL;
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int org_managedsait;
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op->o_bd = op_be;
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op->o_bd->be_delete( op, rs );
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org_req_dn = op->o_req_dn;
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org_req_ndn = op->o_req_ndn;
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org_dn = op->o_dn;
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org_ndn = op->o_ndn;
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org_managedsait = get_manageDSAit( op );
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op->o_dn = op->o_bd->be_rootdn;
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op->o_ndn = op->o_bd->be_rootndn;
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op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
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while ( rs->sr_err == LDAP_SUCCESS &&
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op->o_delete_glue_parent )
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{
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op->o_delete_glue_parent = 0;
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if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
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slap_callback cb = { NULL, NULL, NULL, NULL };
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cb.sc_response = slap_null_cb;
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dnParent( &op->o_req_ndn, &pdn );
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op->o_req_dn = pdn;
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op->o_req_ndn = pdn;
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op->o_callback = &cb;
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op->o_bd->be_delete( op, rs );
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} else {
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break;
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}
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}
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op->o_managedsait = org_managedsait;
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op->o_dn = org_dn;
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op->o_ndn = org_ndn;
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op->o_req_dn = org_req_dn;
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op->o_req_ndn = org_req_ndn;
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op->o_delete_glue_parent = 0;
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} else {
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BerVarray defref = op->o_bd->be_update_refs
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? op->o_bd->be_update_refs : default_referral;
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if ( defref != NULL ) {
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rs->sr_ref = referral_rewrite( defref,
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NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
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if (!rs->sr_ref) rs->sr_ref = defref;
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rs->sr_err = LDAP_REFERRAL;
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send_ldap_result( op, rs );
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if (rs->sr_ref != defref) ber_bvarray_free( rs->sr_ref );
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} else {
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send_ldap_error( op, rs,
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LDAP_UNWILLING_TO_PERFORM,
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"shadow context; no update referral" );
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}
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}
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} else {
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send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
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"operation not supported within namingContext" );
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}
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cleanup:;
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op->o_bd = bd;
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return rs->sr_err;
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}
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