+++ /dev/null
-/* delete.cpp - ndb backend delete routine */
-/* $OpenLDAP$ */
-/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
- *
- * Copyright 2008 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 Howard Chu for inclusion
- * in OpenLDAP Software. This work was sponsored by MySQL.
- */
-
-#include "portable.h"
-
-#include <stdio.h>
-#include <ac/string.h>
-
-#include "lutil.h"
-#include "back-ndb.h"
-
-static struct berval glue_bv = BER_BVC("glue");
-
-int
-ndb_back_delete( Operation *op, SlapReply *rs )
-{
- struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
- Entry e = {0};
- Entry p = {0};
- int manageDSAit = get_manageDSAit( op );
- AttributeDescription *children = slap_schema.si_ad_children;
- AttributeDescription *entry = slap_schema.si_ad_entry;
-
- NdbArgs NA;
- NdbRdns rdns;
- struct berval matched;
-
- int num_retries = 0;
-
- int rc;
-
- LDAPControl **preread_ctrl = NULL;
- LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
- int num_ctrls = 0;
-
- Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(ndb_back_delete) ": %s\n",
- op->o_req_dn.bv_val, 0, 0 );
-
- ctrls[num_ctrls] = 0;
-
- /* allocate CSN */
- if ( BER_BVISNULL( &op->o_csn ) ) {
- struct berval csn;
- char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
-
- csn.bv_val = csnbuf;
- csn.bv_len = sizeof(csnbuf);
- slap_get_csn( op, &csn, 1 );
- }
-
- if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
- dnParent( &op->o_req_dn, &p.e_name );
- dnParent( &op->o_req_ndn, &p.e_nname );
- }
-
- /* Get our NDB handle */
- rs->sr_err = ndb_thread_handle( op, &NA.ndb );
- rdns.nr_num = 0;
- NA.rdns = &rdns;
- NA.ocs = NULL;
- NA.e = &e;
- e.e_name = op->o_req_dn;
- e.e_nname = op->o_req_ndn;
-
- if( 0 ) {
-retry: /* transaction retry */
- NA.txn->close();
- NA.txn = NULL;
- Debug( LDAP_DEBUG_TRACE,
- "==> " LDAP_XSTRING(ndb_back_delete) ": retrying...\n",
- 0, 0, 0 );
- if ( op->o_abandon ) {
- rs->sr_err = SLAPD_ABANDON;
- goto return_results;
- }
- if ( NA.ocs ) {
- ber_bvarray_free( NA.ocs );
- NA.ocs = NULL;
- }
- ndb_trans_backoff( ++num_retries );
- }
-
- /* begin transaction */
- NA.txn = NA.ndb->startTransaction();
- rs->sr_text = NULL;
- if( !NA.txn ) {
- Debug( LDAP_DEBUG_TRACE,
- LDAP_XSTRING(ndb_back_delete) ": startTransaction failed: %s (%d)\n",
- NA.ndb->getNdbError().message, NA.ndb->getNdbError().code, 0 );
- rs->sr_err = LDAP_OTHER;
- rs->sr_text = "internal error";
- goto return_results;
- }
-
- /* get entry */
- rs->sr_err = ndb_entry_get_info( op->o_bd, &NA, 1, &matched );
- switch( rs->sr_err ) {
- case 0:
- case LDAP_NO_SUCH_OBJECT:
- break;
-#if 0
- case DB_LOCK_DEADLOCK:
- case DB_LOCK_NOTGRANTED:
- goto retry;
-#endif
- case LDAP_BUSY:
- rs->sr_text = "ldap server busy";
- goto return_results;
- default:
- rs->sr_err = LDAP_OTHER;
- rs->sr_text = "internal error";
- goto return_results;
- }
-
- if ( rs->sr_err == LDAP_NO_SUCH_OBJECT ||
- ( !manageDSAit && bvmatch( NA.ocs, &glue_bv ))) {
- Debug( LDAP_DEBUG_ARGS,
- "<=- " LDAP_XSTRING(ndb_back_delete) ": no such object %s\n",
- op->o_req_dn.bv_val, 0, 0);
-
- if ( rs->sr_err == LDAP_NO_SUCH_OBJECT ) {
- rs->sr_matched = matched.bv_val;
- } else {
- rs->sr_matched = p.e_name.bv_val;
- rs->sr_err = LDAP_NO_SUCH_OBJECT;
- }
- goto return_results;
- }
-
- /* check parent for "children" acl */
- rs->sr_err = access_allowed( op, &p,
- children, NULL, ACL_WDEL, NULL );
-
- if ( !rs->sr_err ) {
- Debug( LDAP_DEBUG_TRACE,
- "<=- " LDAP_XSTRING(ndb_back_delete) ": no write "
- "access to parent\n", 0, 0, 0 );
- rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
- rs->sr_text = "no write access to parent";
- goto return_results;
- }
-
- rs->sr_err = ndb_entry_get_data( op->o_bd, &NA, 1 );
-
- rs->sr_err = access_allowed( op, &e,
- entry, NULL, ACL_WDEL, NULL );
-
- if ( !rs->sr_err ) {
- Debug( LDAP_DEBUG_TRACE,
- "<=- " LDAP_XSTRING(ndb_back_delete) ": no write access "
- "to entry\n", 0, 0, 0 );
- rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
- rs->sr_text = "no write access to entry";
- goto return_results;
- }
-
- if ( !manageDSAit && is_entry_referral( &e ) ) {
- /* entry is a referral, don't allow delete */
- rs->sr_ref = get_entry_referrals( op, &e );
-
- Debug( LDAP_DEBUG_TRACE,
- LDAP_XSTRING(ndb_back_delete) ": entry is referral\n",
- 0, 0, 0 );
-
- rs->sr_err = LDAP_REFERRAL;
- rs->sr_matched = e.e_name.bv_val;
- rs->sr_flags = REP_REF_MUSTBEFREED;
- goto return_results;
- }
-
- if ( get_assert( op ) &&
- ( test_filter( op, &e, (Filter *)get_assertion( op )) != LDAP_COMPARE_TRUE ))
- {
- rs->sr_err = LDAP_ASSERTION_FAILED;
- goto return_results;
- }
-
- /* pre-read */
- if( op->o_preread ) {
- if( preread_ctrl == NULL ) {
- preread_ctrl = &ctrls[num_ctrls++];
- ctrls[num_ctrls] = NULL;
- }
- if( slap_read_controls( op, rs, &e,
- &slap_pre_read_bv, preread_ctrl ) )
- {
- Debug( LDAP_DEBUG_TRACE,
- "<=- " LDAP_XSTRING(ndb_back_delete) ": pre-read "
- "failed!\n", 0, 0, 0 );
- if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
- /* FIXME: is it correct to abort
- * operation if control fails? */
- goto return_results;
- }
- }
- }
-
- /* Can't do it if we have kids */
- rs->sr_err = ndb_has_children( &NA, &rc );
- if ( rs->sr_err ) {
- Debug(LDAP_DEBUG_ARGS,
- "<=- " LDAP_XSTRING(ndb_back_delete)
- ": has_children failed: %s (%d)\n",
- NA.txn->getNdbError().message, NA.txn->getNdbError().code, 0 );
- rs->sr_err = LDAP_OTHER;
- rs->sr_text = "internal error";
- goto return_results;
- }
- if ( rc == LDAP_COMPARE_TRUE ) {
- Debug(LDAP_DEBUG_ARGS,
- "<=- " LDAP_XSTRING(ndb_back_delete)
- ": non-leaf %s\n",
- op->o_req_dn.bv_val, 0, 0);
- rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
- rs->sr_text = "subordinate objects must be deleted first";
- goto return_results;
- }
-
- /* delete info */
- rs->sr_err = ndb_entry_del_info( op->o_bd, &NA );
- if ( rs->sr_err != 0 ) {
- Debug(LDAP_DEBUG_TRACE,
- "<=- " LDAP_XSTRING(ndb_back_delete) ": del_info failed: %s (%d)\n",
- NA.txn->getNdbError().message, NA.txn->getNdbError().code, 0 );
- rs->sr_text = "DN index delete failed";
- rs->sr_err = LDAP_OTHER;
- goto return_results;
- }
-
- /* delete data */
- rs->sr_err = ndb_entry_del_data( op->o_bd, &NA );
- if ( rs->sr_err != 0 ) {
- Debug( LDAP_DEBUG_TRACE,
- "<=- " LDAP_XSTRING(ndb_back_delete) ": del_data failed: %s (%d)\n",
- NA.txn->getNdbError().message, NA.txn->getNdbError().code, 0 );
- rs->sr_text = "entry delete failed";
- rs->sr_err = LDAP_OTHER;
- goto return_results;
- }
-
- if( op->o_noop ) {
- if (( rs->sr_err=NA.txn->execute( Rollback )) != 0 ) {
- rs->sr_text = "txn (no-op) failed";
- } else {
- rs->sr_err = LDAP_X_NO_OPERATION;
- }
- } else {
- if(( rs->sr_err=NA.txn->execute( Commit )) != 0 ) {
- rs->sr_text = "txn_commit failed";
- } else {
- rs->sr_err = LDAP_SUCCESS;
- }
- }
-
- if( rs->sr_err != LDAP_SUCCESS && rs->sr_err != LDAP_X_NO_OPERATION ) {
- Debug( LDAP_DEBUG_TRACE,
- LDAP_XSTRING(ndb_back_delete) ": txn_%s failed: %s (%d)\n",
- op->o_noop ? "abort (no-op)" : "commit",
- NA.txn->getNdbError().message, NA.txn->getNdbError().code );
- rs->sr_err = LDAP_OTHER;
- rs->sr_text = "commit failed";
-
- goto return_results;
- }
- NA.txn->close();
- NA.txn = NULL;
-
- Debug( LDAP_DEBUG_TRACE,
- LDAP_XSTRING(ndb_back_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
- op->o_noop ? " (no-op)" : "",
- e.e_id, op->o_req_dn.bv_val );
- rs->sr_err = LDAP_SUCCESS;
- rs->sr_text = NULL;
- if( num_ctrls ) rs->sr_ctrls = ctrls;
-
-return_results:
- if ( NA.ocs ) {
- ber_bvarray_free( NA.ocs );
- NA.ocs = NULL;
- }
-
- /* free entry */
- if( e.e_attrs != NULL ) {
- attrs_free( e.e_attrs );
- e.e_attrs = NULL;
- }
-
- if( NA.txn != NULL ) {
- NA.txn->execute( Rollback );
- NA.txn->close();
- }
-
- send_ldap_result( op, rs );
- slap_graduate_commit_csn( op );
-
- if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
- slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
- slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
- }
- return rs->sr_err;
-}
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