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/* modify.c - bdb backend modify routine */
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/* $OpenLDAP: pkg/ldap/servers/slapd/back-bdb/modify.c,v 1.156.2.11 2008/05/01 21:39:35 quanah Exp $ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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* Copyright 2000-2008 The OpenLDAP Foundation.
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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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* 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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#include <ac/string.h>
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static struct berval scbva[] = {
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int bdb_modify_internal(
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Modifications *modlist,
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Attribute *save_attrs;
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int glue_attr_delete = 0;
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Debug( LDAP_DEBUG_TRACE, "bdb_modify_internal: 0x%08lx: %s\n",
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if ( !acl_check_modlist( op, e, modlist )) {
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return LDAP_INSUFFICIENT_ACCESS;
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/* save_attrs will be disposed of by bdb_cache_modify */
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save_attrs = e->e_attrs;
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e->e_attrs = attrs_dup( e->e_attrs );
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for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
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switch( mod->sm_op ) {
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case LDAP_MOD_REPLACE:
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if ( mod->sm_desc == slap_schema.si_ad_structuralObjectClass ) {
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value_match( &match, slap_schema.si_ad_structuralObjectClass,
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slap_schema.si_ad_structuralObjectClass->
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ad_type->sat_equality,
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SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
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&mod->sm_values[0], &scbva[0], text );
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if ( !match ) glue_attr_delete = 1;
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if ( glue_attr_delete )
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if ( glue_attr_delete ) {
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Attribute **app = &e->e_attrs;
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while ( *app != NULL ) {
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if ( !is_at_operational( (*app)->a_desc->ad_type )) {
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Attribute *save = *app;
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*app = (*app)->a_next;
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app = &(*app)->a_next;
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for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
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switch ( mod->sm_op ) {
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Debug(LDAP_DEBUG_ARGS,
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"bdb_modify_internal: add %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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err = modify_add_values( e, mod, get_permissiveModify(op),
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text, textbuf, textlen );
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if( err != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
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case LDAP_MOD_DELETE:
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if ( glue_attr_delete ) {
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Debug(LDAP_DEBUG_ARGS,
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"bdb_modify_internal: delete %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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err = modify_delete_values( e, mod, get_permissiveModify(op),
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text, textbuf, textlen );
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assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
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if( err != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
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case LDAP_MOD_REPLACE:
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Debug(LDAP_DEBUG_ARGS,
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"bdb_modify_internal: replace %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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err = modify_replace_values( e, mod, get_permissiveModify(op),
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text, textbuf, textlen );
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if( err != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
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case LDAP_MOD_INCREMENT:
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Debug(LDAP_DEBUG_ARGS,
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"bdb_modify_internal: increment %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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err = modify_increment_values( e, mod, get_permissiveModify(op),
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text, textbuf, textlen );
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if( err != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS,
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"bdb_modify_internal: %d %s\n",
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case SLAP_MOD_SOFTADD:
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Debug(LDAP_DEBUG_ARGS,
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"bdb_modify_internal: softadd %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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/* Avoid problems in index_add_mods()
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* We need to add index if necessary.
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mod->sm_op = LDAP_MOD_ADD;
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err = modify_add_values( e, mod, get_permissiveModify(op),
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text, textbuf, textlen );
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mod->sm_op = SLAP_MOD_SOFTADD;
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if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
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if( err != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
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Debug(LDAP_DEBUG_ANY, "bdb_modify_internal: invalid op %d\n",
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*text = "Invalid modify operation";
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Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
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if ( err != LDAP_SUCCESS ) {
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attrs_free( e->e_attrs );
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e->e_attrs = save_attrs;
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/* unlock entry, delete from cache */
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/* If objectClass was modified, reset the flags */
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if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
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if ( glue_attr_delete ) e->e_ocflags = 0;
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/* check if modified attribute was indexed
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* but not in case of NOOP... */
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ai = bdb_index_mask( op->o_bd, mod->sm_desc, &ix_at );
208
if ( ai && !op->o_noop ) {
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ap = attr_find( save_attrs, mod->sm_desc );
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if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
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/* Find all other attrs that index to same slot */
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for ( ap = e->e_attrs; ap; ap=ap->a_next ) {
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ai = bdb_index_mask( op->o_bd, ap->a_desc, &ix2 );
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if ( ai && ix2.bv_val == ix_at.bv_val )
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ap->a_flags |= SLAP_ATTR_IXADD;
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ap = attr_find( e->e_attrs, mod->sm_desc );
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if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
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/* check that the entry still obeys the schema */
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rc = entry_schema_check( op, e, save_attrs, get_relax(op), 0,
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text, textbuf, textlen );
231
if ( rc != LDAP_SUCCESS || op->o_noop ) {
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attrs_free( e->e_attrs );
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/* clear the indexing flags */
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for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
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ap->a_flags &= ~(SLAP_ATTR_IXADD|SLAP_ATTR_IXDEL);
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e->e_attrs = save_attrs;
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if ( rc != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_ANY,
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"entry failed schema check: %s\n",
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/* if NOOP then silently revert to saved attrs */
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/* update the indices of the modified attributes */
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/* start with deleting the old index entries */
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for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
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if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
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ap->a_flags &= ~SLAP_ATTR_IXDEL;
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a2 = attr_find( e->e_attrs, ap->a_desc );
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/* need to detect which values were deleted */
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rc = attr_valfind( a2, SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
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&ap->a_nvals[i], NULL, op->o_tmpmemctx );
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/* Move deleted values to end of array */
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if ( rc == LDAP_NO_SUCH_ATTRIBUTE ) {
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tmp = ap->a_nvals[j];
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ap->a_nvals[j] = ap->a_nvals[i];
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ap->a_nvals[i] = tmp;
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ap->a_vals[j] = ap->a_vals[i];
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vals = &ap->a_nvals[j];
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/* attribute was completely deleted */
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if ( !BER_BVISNULL( vals )) {
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rc = bdb_index_values( op, tid, ap->a_desc,
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vals, e->e_id, SLAP_INDEX_DELETE_OP );
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if ( rc != LDAP_SUCCESS ) {
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attrs_free( e->e_attrs );
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e->e_attrs = save_attrs;
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Debug( LDAP_DEBUG_ANY,
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"Attribute index delete failure",
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/* add the new index entries */
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for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
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if (ap->a_flags & SLAP_ATTR_IXADD) {
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ap->a_flags &= ~SLAP_ATTR_IXADD;
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rc = bdb_index_values( op, tid, ap->a_desc,
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e->e_id, SLAP_INDEX_ADD_OP );
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if ( rc != LDAP_SUCCESS ) {
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attrs_free( e->e_attrs );
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e->e_attrs = save_attrs;
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Debug( LDAP_DEBUG_ANY,
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"Attribute index add failure",
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bdb_modify( Operation *op, SlapReply *rs )
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struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
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EntryInfo *ei = NULL;
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int manageDSAit = get_manageDSAit( op );
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char textbuf[SLAP_TEXT_BUFLEN];
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size_t textlen = sizeof textbuf;
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DB_TXN *ltid = NULL, *lt2;
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struct bdb_op_info opinfo = {0};
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BDB_LOCKER locker = 0;
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LDAPControl **preread_ctrl = NULL;
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LDAPControl **postread_ctrl = NULL;
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LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
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Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %s\n",
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op->o_req_dn.bv_val, 0, 0 );
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if( op->o_txnSpec ) {
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/* acquire connection lock */
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ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
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if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
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rs->sr_text = "invalid transaction identifier";
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rs->sr_err = LDAP_X_TXN_ID_INVALID;
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} else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
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if( op->o_conn->c_txn_backend == NULL ) {
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op->o_conn->c_txn_backend = op->o_bd;
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} else if( op->o_conn->c_txn_backend != op->o_bd ) {
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rs->sr_text = "transaction cannot span multiple database contexts";
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rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
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/* insert operation into transaction */
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rs->sr_text = "transaction specified";
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rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
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/* release connection lock */
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ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
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send_ldap_result( op, rs );
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ctrls[num_ctrls] = NULL;
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slap_mods_opattrs( op, &op->orm_modlist, 1 );
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retry: /* transaction retry */
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if ( dummy.e_attrs ) {
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attrs_free( dummy.e_attrs );
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dummy.e_attrs = NULL;
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bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
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Debug(LDAP_DEBUG_TRACE,
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LDAP_XSTRING(bdb_modify) ": retrying...\n", 0, 0, 0);
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rs->sr_err = TXN_ABORT( ltid );
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LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
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opinfo.boi_oe.oe_key = NULL;
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op->o_do_not_cache = opinfo.boi_acl_cache;
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if( rs->sr_err != 0 ) {
417
rs->sr_err = LDAP_OTHER;
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rs->sr_text = "internal error";
421
if ( op->o_abandon ) {
422
rs->sr_err = SLAPD_ABANDON;
425
bdb_trans_backoff( ++num_retries );
428
/* begin transaction */
429
rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
430
bdb->bi_db_opflags );
432
if( rs->sr_err != 0 ) {
433
Debug( LDAP_DEBUG_TRACE,
434
LDAP_XSTRING(bdb_modify) ": txn_begin failed: "
435
"%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
436
rs->sr_err = LDAP_OTHER;
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rs->sr_text = "internal error";
441
locker = TXN_ID ( ltid );
443
opinfo.boi_oe.oe_key = bdb;
444
opinfo.boi_txn = ltid;
446
opinfo.boi_acl_cache = op->o_do_not_cache;
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LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
449
/* get entry or ancestor */
450
rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
453
if ( rs->sr_err != 0 ) {
454
Debug( LDAP_DEBUG_TRACE,
455
LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n",
457
switch( rs->sr_err ) {
458
case DB_LOCK_DEADLOCK:
459
case DB_LOCK_NOTGRANTED:
462
if ( BER_BVISEMPTY( &op->o_req_ndn )) {
463
struct berval gluebv = BER_BVC("glue");
464
e = ch_calloc( 1, sizeof(Entry));
465
e->e_name.bv_val = ch_strdup( "" );
466
ber_dupbv( &e->e_nname, &e->e_name );
467
attr_merge_one( e, slap_schema.si_ad_objectClass,
469
attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
477
rs->sr_text = "ldap server busy";
480
rs->sr_err = LDAP_OTHER;
481
rs->sr_text = "internal error";
490
/* acquire and lock entry */
491
/* FIXME: dn2entry() should return non-glue entry */
492
if (( rs->sr_err == DB_NOTFOUND ) ||
493
( !manageDSAit && e && is_entry_glue( e )))
496
rs->sr_matched = ch_strdup( e->e_dn );
497
rs->sr_ref = is_entry_referral( e )
498
? get_entry_referrals( op, e )
500
bdb_unlocked_cache_return_entry_r (&bdb->bi_cache, e);
504
rs->sr_ref = referral_rewrite( default_referral, NULL,
505
&op->o_req_dn, LDAP_SCOPE_DEFAULT );
508
rs->sr_err = LDAP_REFERRAL;
509
send_ldap_result( op, rs );
511
if ( rs->sr_ref != default_referral ) {
512
ber_bvarray_free( rs->sr_ref );
514
free( (char *)rs->sr_matched );
516
rs->sr_matched = NULL;
521
if ( !manageDSAit && is_entry_referral( e ) ) {
522
/* entry is a referral, don't allow modify */
523
rs->sr_ref = get_entry_referrals( op, e );
525
Debug( LDAP_DEBUG_TRACE,
526
LDAP_XSTRING(bdb_modify) ": entry is referral\n",
529
rs->sr_err = LDAP_REFERRAL;
530
rs->sr_matched = e->e_name.bv_val;
531
send_ldap_result( op, rs );
533
ber_bvarray_free( rs->sr_ref );
535
rs->sr_matched = NULL;
539
if ( get_assert( op ) &&
540
( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
542
rs->sr_err = LDAP_ASSERTION_FAILED;
546
if( op->o_preread ) {
547
if( preread_ctrl == NULL ) {
548
preread_ctrl = &ctrls[num_ctrls++];
549
ctrls[num_ctrls] = NULL;
551
if ( slap_read_controls( op, rs, e,
552
&slap_pre_read_bv, preread_ctrl ) )
554
Debug( LDAP_DEBUG_TRACE,
555
"<=- " LDAP_XSTRING(bdb_modify) ": pre-read "
556
"failed!\n", 0, 0, 0 );
557
if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
558
/* FIXME: is it correct to abort
559
* operation if control fails? */
565
/* nested transaction */
566
rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2, bdb->bi_db_opflags );
568
if( rs->sr_err != 0 ) {
569
Debug( LDAP_DEBUG_TRACE,
570
LDAP_XSTRING(bdb_modify) ": txn_begin(2) failed: " "%s (%d)\n",
571
db_strerror(rs->sr_err), rs->sr_err, 0 );
572
rs->sr_err = LDAP_OTHER;
573
rs->sr_text = "internal error";
576
/* Modify the entry */
578
rs->sr_err = bdb_modify_internal( op, lt2, op->orm_modlist,
579
&dummy, &rs->sr_text, textbuf, textlen );
581
if( rs->sr_err != LDAP_SUCCESS ) {
582
Debug( LDAP_DEBUG_TRACE,
583
LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n",
585
if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
586
rs->sr_err = opinfo.boi_err;
588
/* Only free attrs if they were dup'd. */
589
if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
590
switch( rs->sr_err ) {
591
case DB_LOCK_DEADLOCK:
592
case DB_LOCK_NOTGRANTED:
598
/* change the entry itself */
599
rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
600
if ( rs->sr_err != 0 ) {
601
Debug( LDAP_DEBUG_TRACE,
602
LDAP_XSTRING(bdb_modify) ": id2entry update failed " "(%d)\n",
604
switch( rs->sr_err ) {
605
case DB_LOCK_DEADLOCK:
606
case DB_LOCK_NOTGRANTED:
609
rs->sr_text = "entry update failed";
613
if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
614
rs->sr_err = LDAP_OTHER;
615
rs->sr_text = "txn_commit(2) failed";
619
if( op->o_postread ) {
620
if( postread_ctrl == NULL ) {
621
postread_ctrl = &ctrls[num_ctrls++];
622
ctrls[num_ctrls] = NULL;
624
if( slap_read_controls( op, rs, &dummy,
625
&slap_post_read_bv, postread_ctrl ) )
627
Debug( LDAP_DEBUG_TRACE,
628
"<=- " LDAP_XSTRING(bdb_modify)
629
": post-read failed!\n", 0, 0, 0 );
630
if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
631
/* FIXME: is it correct to abort
632
* operation if control fails? */
639
if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
640
rs->sr_text = "txn_abort (no-op) failed";
642
rs->sr_err = LDAP_X_NO_OPERATION;
644
/* Only free attrs if they were dup'd. */
645
if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
649
/* may have changed in bdb_modify_internal() */
650
e->e_ocflags = dummy.e_ocflags;
655
attrs_free( dummy.e_attrs );
658
rc = bdb_cache_modify( bdb, e, dummy.e_attrs, locker, &lock );
660
case DB_LOCK_DEADLOCK:
661
case DB_LOCK_NOTGRANTED:
665
dummy.e_attrs = NULL;
667
rs->sr_err = TXN_COMMIT( ltid, 0 );
670
LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
671
opinfo.boi_oe.oe_key = NULL;
673
if( rs->sr_err != 0 ) {
674
Debug( LDAP_DEBUG_TRACE,
675
LDAP_XSTRING(bdb_modify) ": txn_%s failed: %s (%d)\n",
676
op->o_noop ? "abort (no-op)" : "commit",
677
db_strerror(rs->sr_err), rs->sr_err );
678
rs->sr_err = LDAP_OTHER;
679
rs->sr_text = "commit failed";
684
Debug( LDAP_DEBUG_TRACE,
685
LDAP_XSTRING(bdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
686
op->o_noop ? " (no-op)" : "",
687
dummy.e_id, op->o_req_dn.bv_val );
689
rs->sr_err = LDAP_SUCCESS;
691
if( num_ctrls ) rs->sr_ctrls = ctrls;
694
if( dummy.e_attrs ) {
695
attrs_free( dummy.e_attrs );
697
send_ldap_result( op, rs );
699
if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
700
TXN_CHECKPOINT( bdb->bi_dbenv,
701
bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
705
slap_graduate_commit_csn( op );
710
if ( opinfo.boi_oe.oe_key ) {
711
LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
715
bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
718
if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
719
slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
720
slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
722
if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
723
slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
724
slap_sl_free( *postread_ctrl, op->o_tmpmemctx );