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https://git.openldap.org/openldap/openldap.git
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653 lines
16 KiB
C++
653 lines
16 KiB
C++
/* modify.cpp - ndb backend modify routine */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2008 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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/* ACKNOWLEDGEMENTS:
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* This work was initially developed by Howard Chu for inclusion
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* in OpenLDAP Software. This work was sponsored by MySQL.
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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/time.h>
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#include "back-ndb.h"
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/* This is a copy from slapd/mods.c, but with compaction tweaked
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* to swap values from the tail into deleted slots, to reduce the
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* overall update traffic.
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*/
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static int
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ndb_modify_delete(
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Entry *e,
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Modification *mod,
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int permissive,
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const char **text,
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char *textbuf, size_t textlen,
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int *idx )
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{
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Attribute *a;
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MatchingRule *mr = mod->sm_desc->ad_type->sat_equality;
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struct berval *cvals;
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int *id2 = NULL;
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int i, j, rc = 0, num;
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unsigned flags;
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char dummy = '\0';
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/* For ordered vals, we have no choice but to preserve order */
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if ( mod->sm_desc->ad_type->sat_flags & SLAP_AT_ORDERED_VAL )
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return modify_delete_vindex( e, mod, permissive, text,
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textbuf, textlen, idx );
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/*
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* If permissive is set, then the non-existence of an
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* attribute is not treated as an error.
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*/
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/* delete the entire attribute */
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if ( mod->sm_values == NULL ) {
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rc = attr_delete( &e->e_attrs, mod->sm_desc );
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if( permissive ) {
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rc = LDAP_SUCCESS;
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} else if( rc != LDAP_SUCCESS ) {
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*text = textbuf;
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snprintf( textbuf, textlen,
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"modify/delete: %s: no such attribute",
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mod->sm_desc->ad_cname.bv_val );
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rc = LDAP_NO_SUCH_ATTRIBUTE;
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}
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return rc;
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}
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/* FIXME: Catch old code that doesn't set sm_numvals.
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*/
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if ( !BER_BVISNULL( &mod->sm_values[mod->sm_numvals] )) {
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for ( i = 0; !BER_BVISNULL( &mod->sm_values[i] ); i++ );
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assert( mod->sm_numvals == i );
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}
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if ( !idx ) {
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id2 = (int *)ch_malloc( mod->sm_numvals * sizeof( int ));
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idx = id2;
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}
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if( mr == NULL || !mr->smr_match ) {
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/* disallow specific attributes from being deleted if
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no equality rule */
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*text = textbuf;
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snprintf( textbuf, textlen,
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"modify/delete: %s: no equality matching rule",
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mod->sm_desc->ad_cname.bv_val );
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rc = LDAP_INAPPROPRIATE_MATCHING;
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goto return_result;
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}
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/* delete specific values - find the attribute first */
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if ( (a = attr_find( e->e_attrs, mod->sm_desc )) == NULL ) {
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if( permissive ) {
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rc = LDAP_SUCCESS;
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goto return_result;
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}
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*text = textbuf;
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snprintf( textbuf, textlen,
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"modify/delete: %s: no such attribute",
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mod->sm_desc->ad_cname.bv_val );
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rc = LDAP_NO_SUCH_ATTRIBUTE;
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goto return_result;
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}
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if ( mod->sm_nvalues ) {
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flags = SLAP_MR_EQUALITY | SLAP_MR_VALUE_OF_ASSERTION_SYNTAX
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| SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
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| SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH;
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cvals = mod->sm_nvalues;
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} else {
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flags = SLAP_MR_EQUALITY | SLAP_MR_VALUE_OF_ASSERTION_SYNTAX;
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cvals = mod->sm_values;
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}
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/* Locate values to delete */
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for ( i = 0; !BER_BVISNULL( &mod->sm_values[i] ); i++ ) {
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unsigned sort;
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rc = attr_valfind( a, flags, &cvals[i], &sort, NULL );
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if ( rc == LDAP_SUCCESS ) {
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idx[i] = sort;
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} else if ( rc == LDAP_NO_SUCH_ATTRIBUTE ) {
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if ( permissive ) {
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idx[i] = -1;
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continue;
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}
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*text = textbuf;
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snprintf( textbuf, textlen,
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"modify/delete: %s: no such value",
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mod->sm_desc->ad_cname.bv_val );
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goto return_result;
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} else {
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*text = textbuf;
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snprintf( textbuf, textlen,
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"modify/delete: %s: matching rule failed",
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mod->sm_desc->ad_cname.bv_val );
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goto return_result;
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}
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}
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num = a->a_numvals;
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/* Delete the values */
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for ( i = 0; i < mod->sm_numvals; i++ ) {
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/* Skip permissive values that weren't found */
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if ( idx[i] < 0 )
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continue;
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/* Skip duplicate delete specs */
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if ( a->a_vals[idx[i]].bv_val == &dummy )
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continue;
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/* delete value and mark it as gone */
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free( a->a_vals[idx[i]].bv_val );
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a->a_vals[idx[i]].bv_val = &dummy;
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if( a->a_nvals != a->a_vals ) {
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free( a->a_nvals[idx[i]].bv_val );
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a->a_nvals[idx[i]].bv_val = &dummy;
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}
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a->a_numvals--;
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}
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/* compact array */
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for ( i=0; i<num; i++ ) {
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if ( a->a_vals[i].bv_val != &dummy )
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continue;
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for ( --num; num > i && a->a_vals[num].bv_val == &dummy; num-- )
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;
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a->a_vals[i] = a->a_vals[num];
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if ( a->a_nvals != a->a_vals )
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a->a_nvals[i] = a->a_nvals[num];
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}
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BER_BVZERO( &a->a_vals[num] );
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if (a->a_nvals != a->a_vals) {
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BER_BVZERO( &a->a_nvals[num] );
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}
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/* if no values remain, delete the entire attribute */
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if ( !a->a_numvals ) {
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if ( attr_delete( &e->e_attrs, mod->sm_desc ) ) {
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/* Can never happen */
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*text = textbuf;
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snprintf( textbuf, textlen,
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"modify/delete: %s: no such attribute",
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mod->sm_desc->ad_cname.bv_val );
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rc = LDAP_NO_SUCH_ATTRIBUTE;
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}
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}
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return_result:
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if ( id2 )
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ch_free( id2 );
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return rc;
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}
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int ndb_modify_internal(
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Operation *op,
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NdbArgs *NA,
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const char **text,
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char *textbuf,
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size_t textlen )
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{
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struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
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Modification *mod;
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Modifications *ml;
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Modifications *modlist = op->orm_modlist;
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NdbAttrInfo **modai, *atmp;
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const NdbDictionary::Dictionary *myDict;
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const NdbDictionary::Table *myTable;
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int got_oc = 0, nmods = 0, nai = 0, i, j;
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int rc, indexed = 0;
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Attribute *old = NULL;
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Debug( LDAP_DEBUG_TRACE, "ndb_modify_internal: 0x%08lx: %s\n",
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NA->e->e_id, NA->e->e_dn, 0);
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if ( !acl_check_modlist( op, NA->e, modlist )) {
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return LDAP_INSUFFICIENT_ACCESS;
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}
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old = attrs_dup( NA->e->e_attrs );
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for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
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mod = &ml->sml_mod;
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nmods++;
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switch ( mod->sm_op ) {
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case LDAP_MOD_ADD:
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Debug(LDAP_DEBUG_ARGS,
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"ndb_modify_internal: add %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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rc = modify_add_values( NA->e, mod, get_permissiveModify(op),
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text, textbuf, textlen );
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if( rc != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS, "ndb_modify_internal: %d %s\n",
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rc, *text, 0);
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}
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break;
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case LDAP_MOD_DELETE:
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Debug(LDAP_DEBUG_ARGS,
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"ndb_modify_internal: delete %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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rc = ndb_modify_delete( NA->e, mod, get_permissiveModify(op),
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text, textbuf, textlen, NULL );
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assert( rc != LDAP_TYPE_OR_VALUE_EXISTS );
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if( rc != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS, "ndb_modify_internal: %d %s\n",
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rc, *text, 0);
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}
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break;
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case LDAP_MOD_REPLACE:
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Debug(LDAP_DEBUG_ARGS,
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"ndb_modify_internal: replace %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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rc = modify_replace_values( NA->e, mod, get_permissiveModify(op),
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text, textbuf, textlen );
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if( rc != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS, "ndb_modify_internal: %d %s\n",
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rc, *text, 0);
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}
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break;
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case LDAP_MOD_INCREMENT:
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Debug(LDAP_DEBUG_ARGS,
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"ndb_modify_internal: increment %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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rc = modify_increment_values( NA->e, mod, get_permissiveModify(op),
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text, textbuf, textlen );
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if( rc != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS,
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"ndb_modify_internal: %d %s\n",
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rc, *text, 0);
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}
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break;
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case SLAP_MOD_SOFTADD:
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Debug(LDAP_DEBUG_ARGS,
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"ndb_modify_internal: softadd %s\n",
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mod->sm_desc->ad_cname.bv_val, 0, 0);
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mod->sm_op = LDAP_MOD_ADD;
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rc = modify_add_values( NA->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 ( rc == LDAP_TYPE_OR_VALUE_EXISTS ) {
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rc = LDAP_SUCCESS;
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}
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if( rc != LDAP_SUCCESS ) {
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Debug(LDAP_DEBUG_ARGS, "ndb_modify_internal: %d %s\n",
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rc, *text, 0);
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}
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break;
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default:
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Debug(LDAP_DEBUG_ANY, "ndb_modify_internal: invalid op %d\n",
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mod->sm_op, 0, 0);
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*text = "Invalid modify operation";
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rc = LDAP_OTHER;
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Debug(LDAP_DEBUG_ARGS, "ndb_modify_internal: %d %s\n",
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rc, *text, 0);
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}
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if ( rc != LDAP_SUCCESS ) {
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attrs_free( old );
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return rc;
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}
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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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NA->e->e_ocflags = 0;
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got_oc = 1;
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}
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}
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/* check that the entry still obeys the schema */
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rc = entry_schema_check( op, NA->e, NULL, get_relax(op), 0,
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text, textbuf, textlen );
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if ( rc != LDAP_SUCCESS || op->o_noop ) {
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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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*text, 0, 0 );
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}
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attrs_free( old );
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return rc;
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}
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/* apply modifications to DB */
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modai = (NdbAttrInfo **)op->o_tmpalloc( nmods * sizeof(NdbAttrInfo*), op->o_tmpmemctx );
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/* Get the unique list of modified attributes */
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ldap_pvt_thread_rdwr_rlock( &ni->ni_ai_rwlock );
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for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
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/* Already took care of objectclass */
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if ( ml->sml_desc == slap_schema.si_ad_objectClass )
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continue;
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for ( i=0; i<nai; i++ ) {
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if ( ml->sml_desc->ad_type == modai[i]->na_attr )
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break;
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}
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/* This attr was already updated */
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if ( i < nai )
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continue;
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modai[nai] = ndb_ai_find( ni, ml->sml_desc->ad_type );
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if ( modai[nai]->na_flag & NDB_INFO_INDEX )
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indexed++;
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nai++;
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}
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ldap_pvt_thread_rdwr_runlock( &ni->ni_ai_rwlock );
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if ( got_oc || indexed ) {
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rc = ndb_entry_put_info( op->o_bd, NA, 1 );
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if ( rc ) {
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attrs_free( old );
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return rc;
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}
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}
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myDict = NA->ndb->getDictionary();
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/* sort modai so that OcInfo's are contiguous */
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{
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int j, k;
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for ( i=0; i<nai; i++ ) {
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for ( j=i+1; j<nai; j++ ) {
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if ( modai[i]->na_oi == modai[j]->na_oi )
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continue;
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for ( k=j+1; k<nai; k++ ) {
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if ( modai[i]->na_oi == modai[k]->na_oi ) {
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atmp = modai[j];
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modai[j] = modai[k];
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modai[k] = atmp;
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break;
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}
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}
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/* there are no more na_oi's that match modai[i] */
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if ( k == nai ) {
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i = j;
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}
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}
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}
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}
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/* One call per table... */
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for ( i=0; i<nai; i += j ) {
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atmp = modai[i];
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for ( j=i+1; j<nai; j++ )
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if ( atmp->na_oi != modai[j]->na_oi )
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break;
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j -= i;
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myTable = myDict->getTable( atmp->na_oi->no_table.bv_val );
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if ( !myTable )
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continue;
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rc = ndb_oc_attrs( NA->txn, myTable, NA->e, atmp->na_oi, &modai[i], j, old );
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if ( rc ) break;
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}
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attrs_free( old );
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return rc;
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}
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int
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ndb_back_modify( Operation *op, SlapReply *rs )
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{
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struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
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Entry e = {0};
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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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int num_retries = 0;
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NdbArgs NA;
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NdbRdns rdns;
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struct berval matched;
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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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int num_ctrls = 0;
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Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(ndb_back_modify) ": %s\n",
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op->o_req_dn.bv_val, 0, 0 );
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ctrls[num_ctrls] = NULL;
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slap_mods_opattrs( op, &op->orm_modlist, 1 );
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e.e_name = op->o_req_dn;
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e.e_nname = op->o_req_ndn;
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/* Get our NDB handle */
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rs->sr_err = ndb_thread_handle( op, &NA.ndb );
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rdns.nr_num = 0;
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NA.rdns = &rdns;
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NA.e = &e;
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if( 0 ) {
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retry: /* transaction retry */
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NA.txn->close();
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NA.txn = NULL;
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if( e.e_attrs ) {
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attrs_free( e.e_attrs );
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e.e_attrs = NULL;
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}
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Debug(LDAP_DEBUG_TRACE,
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LDAP_XSTRING(ndb_back_modify) ": retrying...\n", 0, 0, 0);
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if ( op->o_abandon ) {
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rs->sr_err = SLAPD_ABANDON;
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goto return_results;
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}
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if ( NA.ocs ) {
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ber_bvarray_free_x( NA.ocs, op->o_tmpmemctx );
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}
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ndb_trans_backoff( ++num_retries );
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}
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NA.ocs = NULL;
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/* begin transaction */
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NA.txn = NA.ndb->startTransaction();
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rs->sr_text = NULL;
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if( !NA.txn ) {
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Debug( LDAP_DEBUG_TRACE,
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LDAP_XSTRING(ndb_back_modify) ": startTransaction failed: %s (%d)\n",
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NA.ndb->getNdbError().message, NA.ndb->getNdbError().code, 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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/* get entry or ancestor */
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rs->sr_err = ndb_entry_get_info( op, &NA, 0, &matched );
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switch( rs->sr_err ) {
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case 0:
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break;
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case LDAP_NO_SUCH_OBJECT:
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Debug( LDAP_DEBUG_ARGS,
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"<=- ndb_back_modify: no such object %s\n",
|
|
op->o_req_dn.bv_val, 0, 0 );
|
|
rs->sr_matched = matched.bv_val;
|
|
if (NA.ocs )
|
|
ndb_check_referral( op, rs, &NA );
|
|
goto return_results;
|
|
#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;
|
|
}
|
|
|
|
/* acquire and lock entry */
|
|
rs->sr_err = ndb_entry_get_data( op, &NA, 1 );
|
|
|
|
if ( !manageDSAit && is_entry_referral( &e ) ) {
|
|
/* entry is a referral, don't allow modify */
|
|
rs->sr_ref = get_entry_referrals( op, &e );
|
|
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
LDAP_XSTRING(ndb_back_modify) ": 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;
|
|
}
|
|
|
|
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_modify) ": 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Modify the entry */
|
|
rs->sr_err = ndb_modify_internal( op, &NA, &rs->sr_text, textbuf, textlen );
|
|
|
|
if( rs->sr_err != LDAP_SUCCESS ) {
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
LDAP_XSTRING(ndb_back_modify) ": modify failed (%d)\n",
|
|
rs->sr_err, 0, 0 );
|
|
#if 0
|
|
switch( rs->sr_err ) {
|
|
case DB_LOCK_DEADLOCK:
|
|
case DB_LOCK_NOTGRANTED:
|
|
goto retry;
|
|
}
|
|
#endif
|
|
goto return_results;
|
|
}
|
|
|
|
if( op->o_postread ) {
|
|
if( postread_ctrl == NULL ) {
|
|
postread_ctrl = &ctrls[num_ctrls++];
|
|
ctrls[num_ctrls] = NULL;
|
|
}
|
|
if( slap_read_controls( op, rs, &e,
|
|
&slap_post_read_bv, postread_ctrl ) )
|
|
{
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
"<=- " LDAP_XSTRING(ndb_back_modify)
|
|
": post-read failed!\n", 0, 0, 0 );
|
|
if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
|
|
/* FIXME: is it correct to abort
|
|
* operation if control fails? */
|
|
goto return_results;
|
|
}
|
|
}
|
|
}
|
|
|
|
if( op->o_noop ) {
|
|
if (( rs->sr_err=NA.txn->execute( NdbTransaction::Rollback,
|
|
NdbOperation::AbortOnError, 1 )) != 0 ) {
|
|
rs->sr_text = "txn_abort (no-op) failed";
|
|
} else {
|
|
rs->sr_err = LDAP_X_NO_OPERATION;
|
|
}
|
|
} else {
|
|
if (( rs->sr_err=NA.txn->execute( NdbTransaction::Commit,
|
|
NdbOperation::AbortOnError, 1 )) != 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_modify) ": 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;
|
|
goto return_results;
|
|
}
|
|
NA.txn->close();
|
|
NA.txn = NULL;
|
|
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
LDAP_XSTRING(ndb_back_modify) ": updated%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_x( NA.ocs, op->o_tmpmemctx );
|
|
NA.ocs = NULL;
|
|
}
|
|
|
|
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 );
|
|
}
|
|
if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
|
|
slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
|
|
slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
|
|
}
|
|
|
|
rs->sr_text = NULL;
|
|
return rs->sr_err;
|
|
}
|