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https://git.openldap.org/openldap/openldap.git
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514 lines
12 KiB
C
514 lines
12 KiB
C
/* delete.c - bdb backend delete routine */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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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 "back-bdb.h"
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#include "external.h"
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int
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bdb_delete( Operation *op, SlapReply *rs )
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{
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struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
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Entry *matched;
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struct berval pdn = {0, NULL};
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Entry *e = NULL;
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Entry *p = NULL;
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EntryInfo *ei = NULL, *eip = NULL;
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int manageDSAit = get_manageDSAit( op );
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AttributeDescription *children = slap_schema.si_ad_children;
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AttributeDescription *entry = slap_schema.si_ad_entry;
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DB_TXN *ltid = NULL, *lt2;
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struct bdb_op_info opinfo;
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u_int32_t locker = 0;
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DB_LOCK lock, plock;
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int noop = 0;
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#if defined(LDAP_CLIENT_UPDATE) || defined(LDAP_SYNC)
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Operation* ps_list;
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#endif
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ARGS, "==> bdb_delete: %s\n", op->o_req_dn.bv_val, 0, 0 );
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#else
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Debug( LDAP_DEBUG_ARGS, "==> bdb_delete: %s\n",
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op->o_req_dn.bv_val, 0, 0 );
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#endif
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if( 0 ) {
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retry: /* transaction retry */
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if( e != NULL ) {
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bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
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e = NULL;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, DETAIL1,
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"==> bdb_delete: retrying...\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE, "==> bdb_delete: retrying...\n",
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0, 0, 0 );
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#endif
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rs->sr_err = TXN_ABORT( ltid );
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ltid = NULL;
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op->o_private = NULL;
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op->o_do_not_cache = opinfo.boi_acl_cache;
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if( rs->sr_err != 0 ) {
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "internal error";
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goto return_results;
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}
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ldap_pvt_thread_yield();
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}
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/* begin transaction */
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rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
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bdb->bi_db_opflags );
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rs->sr_text = NULL;
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if( rs->sr_err != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ERR,
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"==> bdb_delete: txn_begin failed: %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"bdb_delete: txn_begin failed: %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#endif
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "internal error";
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goto return_results;
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}
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locker = TXN_ID ( ltid );
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opinfo.boi_bdb = op->o_bd;
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opinfo.boi_txn = ltid;
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opinfo.boi_locker = locker;
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opinfo.boi_err = 0;
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opinfo.boi_acl_cache = op->o_do_not_cache;
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op->o_private = &opinfo;
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if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
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dnParent( &op->o_req_ndn, &pdn );
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}
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/* get entry */
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rs->sr_err = bdb_dn2entry( op->o_bd, ltid, &op->o_req_ndn, &ei, 1,
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locker, &lock, op->o_tmpmemctx );
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switch( rs->sr_err ) {
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case 0:
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case DB_NOTFOUND:
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break;
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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case LDAP_BUSY:
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rs->sr_text = "ldap server busy";
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goto return_results;
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default:
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "internal error";
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goto return_results;
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}
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if ( rs->sr_err == 0 ) {
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e = ei->bei_e;
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eip = ei->bei_parent;
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bdb_cache_find_entry_id( op->o_bd, ltid, eip->bei_id, &eip,
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0, locker, &plock, op->o_tmpmemctx );
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}
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if ( eip ) {
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p = eip->bei_e;
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}
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if ( pdn.bv_len != 0 ) {
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if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, DETAIL1,
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"<=- bdb_delete: parent does not exist\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- bdb_delete: parent does not exist\n",
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0, 0, 0);
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#endif
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "could not locate parent of entry";
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goto return_results;
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}
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/* check parent for "children" acl */
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rs->sr_err = access_allowed( op, p,
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children, NULL, ACL_WRITE, NULL );
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bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
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p = NULL;
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if ( !rs->sr_err ) {
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switch( opinfo.boi_err ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, DETAIL1,
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"<=- bdb_delete: no write access to parent\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- bdb_delete: no write access to parent\n",
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0, 0, 0 );
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#endif
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rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
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rs->sr_text = "no write access to parent";
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goto return_results;
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}
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} else {
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/* no parent, must be root to delete */
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if( ! be_isroot( op->o_bd, &op->o_ndn ) ) {
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if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
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|| be_isupdate( op->o_bd, &op->o_ndn ) ) {
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p = (Entry *)&slap_entry_root;
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/* check parent for "children" acl */
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rs->sr_err = access_allowed( op, p,
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children, NULL, ACL_WRITE, NULL );
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p = NULL;
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if ( !rs->sr_err ) {
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switch( opinfo.boi_err ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, DETAIL1,
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"<=- bdb_delete: no access to parent\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- bdb_delete: no access "
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"to parent\n", 0, 0, 0 );
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#endif
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rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
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rs->sr_text = "no write access to parent";
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goto return_results;
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}
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} else {
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, DETAIL1,
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"<=- bdb_delete: no parent and not root\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- bdb_delete: no parent "
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"and not root\n", 0, 0, 0);
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#endif
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rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
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goto return_results;
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}
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}
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}
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if ( e == NULL ) {
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ARGS,
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"<=- bdb_delete: no such object %s\n", op->o_req_dn.bv_val, 0, 0);
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#else
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Debug( LDAP_DEBUG_ARGS,
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"<=- bdb_delete: no such object %s\n",
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op->o_req_dn.bv_val, 0, 0);
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#endif
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if ( matched != NULL ) {
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rs->sr_matched = ch_strdup( matched->e_dn );
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rs->sr_ref = is_entry_referral( matched )
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? get_entry_referrals( op, matched )
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: NULL;
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bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
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matched = NULL;
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} else {
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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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}
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rs->sr_err = LDAP_REFERRAL;
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send_ldap_result( op, rs );
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ber_bvarray_free( rs->sr_ref );
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free( (char *)rs->sr_matched );
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rs->sr_ref = NULL;
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rs->sr_matched = NULL;
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rs->sr_err = -1;
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goto done;
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}
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rs->sr_err = access_allowed( op, e,
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entry, NULL, ACL_WRITE, NULL );
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if ( !rs->sr_err ) {
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switch( opinfo.boi_err ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, DETAIL1,
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"<=- bdb_delete: no write access to entry\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- bdb_delete: no write access to entry\n",
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0, 0, 0 );
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#endif
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rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
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rs->sr_text = "no write access to entry";
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goto return_results;
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}
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if ( !manageDSAit && is_entry_referral( e ) ) {
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/* entry is a referral, don't allow delete */
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rs->sr_ref = get_entry_referrals( op, e );
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, DETAIL1,
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"<=- bdb_delete: entry is referral\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"bdb_delete: entry is referral\n",
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0, 0, 0 );
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#endif
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rs->sr_err = LDAP_REFERRAL;
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rs->sr_matched = e->e_name.bv_val;
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send_ldap_result( op, rs );
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ber_bvarray_free( rs->sr_ref );
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rs->sr_ref = NULL;
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rs->sr_matched = NULL;
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rs->sr_err = 1;
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goto done;
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}
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/* nested transaction */
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rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
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bdb->bi_db_opflags );
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rs->sr_text = NULL;
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if( rs->sr_err != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ERR,
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"bdb_delete: txn_begin(2) failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"bdb_delete: txn_begin(2) failed: %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#endif
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "internal error";
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goto return_results;
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}
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/* Can't do it if we have kids */
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rs->sr_err = bdb_dn2id_children( op, lt2, e );
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if( rs->sr_err != DB_NOTFOUND ) {
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switch( rs->sr_err ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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case 0:
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, DETAIL1,
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"<=- bdb_delete: non-leaf %s\n", op->o_req_dn.bv_val, 0, 0 );
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#else
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Debug(LDAP_DEBUG_ARGS,
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"<=- bdb_delete: non-leaf %s\n",
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op->o_req_dn.bv_val, 0, 0);
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#endif
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rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
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rs->sr_text = "subtree delete not supported";
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break;
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default:
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ERR,
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"<=- bdb_delete: has_children failed %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#else
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Debug(LDAP_DEBUG_ARGS,
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"<=- bdb_delete: has_children failed: %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#endif
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "internal error";
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}
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goto return_results;
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}
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/* delete from dn2id */
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rs->sr_err = bdb_dn2id_delete( op->o_bd, lt2, pdn.bv_val, e );
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if ( rs->sr_err != 0 ) {
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switch( rs->sr_err ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ERR,
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"<=- bdb_delete: dn2id failed %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
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#else
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Debug(LDAP_DEBUG_ARGS,
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"<=- bdb_delete: dn2id failed: %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#endif
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rs->sr_text = "DN index delete failed";
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rs->sr_err = LDAP_OTHER;
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goto return_results;
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}
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/* delete from id2entry */
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rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
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if ( rs->sr_err != 0 ) {
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switch( rs->sr_err ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ERR,
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"<=- bdb_delete: id2entry failed: %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#else
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Debug(LDAP_DEBUG_ARGS,
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"<=- bdb_delete: id2entry failed: %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#endif
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rs->sr_text = "entry delete failed";
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rs->sr_err = LDAP_OTHER;
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goto return_results;
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}
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/* delete indices for old attributes */
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rs->sr_err = bdb_index_entry_del( op, lt2, e );
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if ( rs->sr_err != LDAP_SUCCESS ) {
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switch( rs->sr_err ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ERR,
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"<=- bdb_delete: entry index delete failed!\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_ANY, "entry index delete failed!\n",
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0, 0, 0 );
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#endif
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rs->sr_text = "entry index delete failed";
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rs->sr_err = LDAP_OTHER;
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goto return_results;
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}
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if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "txn_commit(2) failed";
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goto return_results;
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}
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#if 0 /* Do we want to reclaim deleted IDs? */
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ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
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if ( e->e_id == bdb->bi_lastid ) {
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bdb_last_id( op->o_bd, ltid );
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}
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ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
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#endif
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if( op->o_noop ) {
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if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
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rs->sr_text = "txn_abort (no-op) failed";
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} else {
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noop = 1;
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rs->sr_err = LDAP_SUCCESS;
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}
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} else {
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bdb_cache_delete_entry( &bdb->bi_cache, e, bdb->bi_dbenv,
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locker, &lock );
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rs->sr_err = TXN_COMMIT( ltid, 0 );
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}
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ltid = NULL;
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op->o_private = NULL;
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if( rs->sr_err != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ERR,
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"bdb_delete: txn_%s failed: %s (%d)\n",
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op->o_noop ? "abort (no-op)" : "commit", db_strerror(rs->sr_err), rs->sr_err );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"bdb_delete: txn_%s failed: %s (%d)\n",
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op->o_noop ? "abort (no-op)" : "commit",
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db_strerror(rs->sr_err), rs->sr_err );
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#endif
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "commit failed";
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} else {
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, RESULTS,
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"bdb_delete: deleted%s id=%08lx db=\"%s\"\n",
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op->o_noop ? " (no-op)" : "", e->e_id, e->e_dn );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"bdb_delete: deleted%s id=%08lx dn=\"%s\"\n",
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op->o_noop ? " (no-op)" : "",
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e->e_id, e->e_dn );
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#endif
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rs->sr_err = LDAP_SUCCESS;
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rs->sr_text = NULL;
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}
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return_results:
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|
send_ldap_result( op, rs );
|
|
|
|
#if defined(LDAP_CLIENT_UPDATE) || defined(LDAP_SYNC)
|
|
if ( rs->sr_err == LDAP_SUCCESS && !noop ) {
|
|
LDAP_LIST_FOREACH( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
|
|
bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_DELETE );
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if(rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
|
|
ldap_pvt_thread_yield();
|
|
TXN_CHECKPOINT( bdb->bi_dbenv,
|
|
bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
|
|
}
|
|
|
|
done:
|
|
/* free entry */
|
|
if( e != NULL ) {
|
|
if ( rs->sr_err == LDAP_SUCCESS ) {
|
|
bdb_entry_return( e );
|
|
} else {
|
|
bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
|
|
}
|
|
}
|
|
|
|
if( ltid != NULL ) {
|
|
TXN_ABORT( ltid );
|
|
op->o_private = NULL;
|
|
}
|
|
|
|
return ( ( rs->sr_err == LDAP_SUCCESS ) ? noop : rs->sr_err );
|
|
}
|