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60802201e3
SASL mech removed from backend bind callback (as SASL is managed by frontend) Changes to some backends are untested (as I don't have all dependent software install)
423 lines
9.0 KiB
C
423 lines
9.0 KiB
C
/* modify.c - ldbm backend modify routine */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 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 <ac/socket.h>
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#include <ac/time.h>
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#include "slap.h"
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#include "back-ldbm.h"
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#include "proto-back-ldbm.h"
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static int add_values LDAP_P(( Entry *e, Modification *mod, char *dn ));
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static int delete_values LDAP_P(( Entry *e, Modification *mod, char *dn ));
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static int replace_values LDAP_P(( Entry *e, Modification *mod, char *dn ));
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/* We need this function because of LDAP modrdn. If we do not
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* add this there would be a bunch of code replication here
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* and there and of course the likelihood of bugs increases.
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* Juan C. Gomez (gomez@engr.sgi.com) 05/18/99
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*/
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int ldbm_modify_internal(
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Backend *be,
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Connection *conn,
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Operation *op,
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const char *dn,
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Modifications *modlist,
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Entry *e
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)
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{
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int rc, err;
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const char *text;
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Modification *mod;
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Modifications *ml;
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Attribute *save_attrs;
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if ( !acl_check_modlist( be, conn, op, e, modlist )) {
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return LDAP_INSUFFICIENT_ACCESS;
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}
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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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mod = &ml->sml_mod;
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switch ( mod->sm_op ) {
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case LDAP_MOD_ADD:
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err = add_values( e, mod, op->o_ndn );
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break;
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case LDAP_MOD_DELETE:
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err = delete_values( e, mod, op->o_ndn );
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break;
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case LDAP_MOD_REPLACE:
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err = replace_values( e, mod, op->o_ndn );
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break;
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case SLAP_MOD_SOFTADD:
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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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*/
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mod->sm_op = LDAP_MOD_ADD;
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err = add_values( e, mod, op->o_ndn );
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if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
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err = LDAP_SUCCESS;
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}
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break;
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}
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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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return err;
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}
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}
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/* check for abandon */
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ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
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if ( op->o_abandon ) {
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attrs_free( e->e_attrs );
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e->e_attrs = save_attrs;
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ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
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return SLAPD_ABANDON;
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}
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ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
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/* check that the entry still obeys the schema */
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rc = entry_schema_check( e, save_attrs, &text );
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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, "entry failed schema check: %s\n",
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text, 0, 0 );
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return rc;
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}
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/* check for abandon */
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ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
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if ( op->o_abandon ) {
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attrs_free( e->e_attrs );
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e->e_attrs = save_attrs;
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ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
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return SLAPD_ABANDON;
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}
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ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
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/* run through the attributes removing old indices */
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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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switch ( mod->sm_op ) {
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case LDAP_MOD_REPLACE: {
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/* Need to remove all values from indexes */
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Attribute *a = save_attrs
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? attr_find( save_attrs, mod->sm_desc )
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: NULL;
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#ifdef SLAPD_SCHEMA_NOT_COMPAT
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/* not yet implemented */
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#else
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if( a != NULL ) {
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(void) index_change_values( be,
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mod->mod_type,
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a->a_vals,
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e->e_id,
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SLAP_INDEX_DELETE_OP );
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}
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#endif
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} break;
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case LDAP_MOD_DELETE:
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#ifdef SLAPD_SCHEMA_NOT_COMPAT
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/* not yet implemented */
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#else
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/* remove deleted values */
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(void) index_change_values( be,
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mod->mod_type,
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mod->mod_bvalues,
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e->e_id,
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SLAP_INDEX_DELETE_OP );
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#endif
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break;
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}
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}
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attrs_free( save_attrs );
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/* run through the attributes adding new indices */
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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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switch ( mod->sm_op ) {
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case LDAP_MOD_REPLACE:
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case LDAP_MOD_ADD:
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#ifdef SLAPD_SCHEMA_NOT_COMPAT
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/* not yet implemented */
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#else
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(void) index_change_values( be,
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mod->mod_type,
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mod->mod_bvalues,
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e->e_id,
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SLAP_INDEX_ADD_OP );
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#endif
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break;
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case LDAP_MOD_DELETE: {
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/* Need to add all remaining values */
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Attribute *a = e->e_attrs
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? attr_find( e->e_attrs, mod->sm_desc )
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: NULL;
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#ifdef SLAPD_SCHEMA_NOT_COMPAT
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/* not yet implemented */
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#else
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if( a != NULL ) {
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(void) index_change_values( be,
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mod->mod_type,
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a->a_vals,
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e->e_id,
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SLAP_INDEX_ADD_OP );
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}
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#endif
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} break;
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}
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}
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return LDAP_SUCCESS;
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}
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int
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ldbm_back_modify(
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Backend *be,
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Connection *conn,
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Operation *op,
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const char *dn,
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const char *ndn,
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Modifications *modlist
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)
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{
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int rc;
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struct ldbminfo *li = (struct ldbminfo *) be->be_private;
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Entry *matched;
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Entry *e;
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int manageDSAit = get_manageDSAit( op );
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Debug(LDAP_DEBUG_ARGS, "ldbm_back_modify:\n", 0, 0, 0);
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/* acquire and lock entry */
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if ( (e = dn2entry_w( be, ndn, &matched )) == NULL ) {
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char* matched_dn = NULL;
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struct berval **refs = NULL;
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if ( matched != NULL ) {
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matched_dn = ch_strdup( matched->e_dn );
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refs = is_entry_referral( matched )
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? get_entry_referrals( be, conn, op, matched )
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: NULL;
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cache_return_entry_r( &li->li_cache, matched );
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} else {
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refs = default_referral;
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}
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send_ldap_result( conn, op, LDAP_REFERRAL,
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matched_dn, NULL, refs, NULL );
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if ( matched != NULL ) {
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ber_bvecfree( refs );
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free( matched_dn );
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}
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return( -1 );
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}
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if ( !manageDSAit && is_entry_referral( e ) ) {
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/* parent is a referral, don't allow add */
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/* parent is an alias, don't allow add */
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struct berval **refs = get_entry_referrals( be,
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conn, op, e );
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
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0, 0 );
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send_ldap_result( conn, op, LDAP_REFERRAL,
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e->e_dn, NULL, refs, NULL );
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ber_bvecfree( refs );
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goto error_return;
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}
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/* Modify the entry */
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rc = ldbm_modify_internal( be, conn, op, ndn, modlist, e );
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if( rc != LDAP_SUCCESS ) {
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if( rc != SLAPD_ABANDON ) {
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send_ldap_result( conn, op, rc,
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NULL, NULL, NULL, NULL );
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}
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goto error_return;
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}
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/* change the entry itself */
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if ( id2entry_add( be, e ) != 0 ) {
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send_ldap_result( conn, op, LDAP_OTHER,
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NULL, NULL, NULL, NULL );
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goto error_return;
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}
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send_ldap_result( conn, op, LDAP_SUCCESS,
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NULL, NULL, NULL, NULL );
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cache_return_entry_w( &li->li_cache, e );
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return( 0 );
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error_return:;
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cache_return_entry_w( &li->li_cache, e );
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return( -1 );
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}
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static int
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add_values(
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Entry *e,
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Modification *mod,
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char *dn
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)
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{
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int i;
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Attribute *a;
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#ifdef SLAPD_SCHEMA_NOT_COMPAT
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AttributeDescription *desc = mod->sm_desc;
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#else
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char *desc = mod->mod_type;
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#endif
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a = attr_find( e->e_attrs, desc );
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/* check if the values we're adding already exist */
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if ( a != NULL ) {
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for ( i = 0; mod->sm_bvalues[i] != NULL; i++ ) {
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#ifdef SLAPD_SCHEMA_NOT_COMPAT
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/* not yet implemented */
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#else
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if ( value_find( a->a_vals, mod->sm_bvalues[i],
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a->a_syntax, 3 ) == 0 )
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{
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return( LDAP_TYPE_OR_VALUE_EXISTS );
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}
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#endif
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}
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}
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/* no - add them */
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if( attr_merge( e, desc, mod->sm_bvalues ) != 0 ) {
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return( LDAP_CONSTRAINT_VIOLATION );
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}
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return( LDAP_SUCCESS );
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}
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static int
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delete_values(
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Entry *e,
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Modification *mod,
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char *dn
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)
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{
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#ifdef SLAPD_SCHEMA_NOT_COMPAT
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/* not yet implemented */
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#else
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int i, j, k, found;
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Attribute *a;
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/* delete the entire attribute */
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if ( mod->mod_bvalues == NULL ) {
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Debug( LDAP_DEBUG_ARGS, "removing entire attribute %s\n",
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mod->mod_type, 0, 0 );
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return( attr_delete( &e->e_attrs, mod->mod_type ) ?
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LDAP_NO_SUCH_ATTRIBUTE : LDAP_SUCCESS );
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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->mod_type )) == NULL ) {
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Debug( LDAP_DEBUG_ARGS, "could not find attribute %s\n",
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mod->mod_type, 0, 0 );
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return( LDAP_NO_SUCH_ATTRIBUTE );
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}
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/* find each value to delete */
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for ( i = 0; mod->mod_bvalues[i] != NULL; i++ ) {
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found = 0;
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for ( j = 0; a->a_vals[j] != NULL; j++ ) {
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if ( value_cmp( mod->mod_bvalues[i], a->a_vals[j],
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a->a_syntax, 3 ) != 0 ) {
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continue;
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}
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found = 1;
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/* found a matching value - delete it */
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ber_bvfree( a->a_vals[j] );
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for ( k = j + 1; a->a_vals[k] != NULL; k++ ) {
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a->a_vals[k - 1] = a->a_vals[k];
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}
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a->a_vals[k - 1] = NULL;
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/* delete the entire attribute, if no values remain */
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if ( a->a_vals[0] == NULL) {
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Debug( LDAP_DEBUG_ARGS,
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"removing entire attribute %s\n",
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mod->mod_type, 0, 0 );
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if ( attr_delete( &e->e_attrs, mod->mod_type ) ) {
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return LDAP_NO_SUCH_ATTRIBUTE;
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}
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}
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break;
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}
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/* looked through them all w/o finding it */
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if ( ! found ) {
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Debug( LDAP_DEBUG_ARGS,
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"could not find value for attr %s\n",
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mod->mod_type, 0, 0 );
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return LDAP_NO_SUCH_ATTRIBUTE;
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}
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}
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#endif
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return( LDAP_SUCCESS );
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}
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static int
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replace_values(
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Entry *e,
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Modification *mod,
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char *dn
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)
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{
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(void) attr_delete( &e->e_attrs, mod->sm_desc );
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if ( mod->sm_bvalues != NULL &&
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attr_merge( e, mod->sm_desc, mod->sm_bvalues ) != 0 )
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{
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return( LDAP_CONSTRAINT_VIOLATION );
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}
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return( LDAP_SUCCESS );
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}
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