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https://git.openldap.org/openldap/openldap.git
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146 lines
2.9 KiB
C
146 lines
2.9 KiB
C
/* compare.c - bdb backend compare routine */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include "back-bdb.h"
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#include "external.h"
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int
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bdb_compare(
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BackendDB *be,
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Connection *conn,
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Operation *op,
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struct berval *dn,
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struct berval *ndn,
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AttributeAssertion *ava
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)
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{
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struct bdb_info *bdb = (struct bdb_info *) be->be_private;
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Entry *matched;
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Entry *e;
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Attribute *a;
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int rc;
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const char *text = NULL;
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int manageDSAit = get_manageDSAit( op );
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u_int32_t locker;
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DB_LOCK lock;
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/* XXYYZ: need to check return value */
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LOCK_ID ( bdb->bi_dbenv, &locker );
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dn2entry_retry:
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/* get entry */
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rc = bdb_dn2entry_r( be, NULL, ndn, &e, &matched, 0, locker, &lock );
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switch( rc ) {
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case DB_NOTFOUND:
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case 0:
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break;
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case LDAP_BUSY:
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text = "ldap server busy";
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goto return_results;
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto dn2entry_retry;
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default:
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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if ( e == NULL ) {
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char *matched_dn = NULL;
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BerVarray refs;
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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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bdb_cache_return_entry_r( bdb->bi_dbenv, &bdb->bi_cache, matched, &lock );
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matched = NULL;
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} else {
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refs = referral_rewrite( default_referral,
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NULL, dn, LDAP_SCOPE_DEFAULT );
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}
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send_ldap_result( conn, op, rc = LDAP_REFERRAL,
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matched_dn, NULL, refs, NULL );
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ber_bvarray_free( refs );
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free( matched_dn );
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goto done;
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}
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if (!manageDSAit && is_entry_referral( e ) ) {
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/* entry is a referral, don't allow add */
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BerVarray refs = get_entry_referrals( be,
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conn, op, e );
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, DETAIL1,
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"bdb_compare: entry is referral\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
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0, 0 );
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#endif
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send_ldap_result( conn, op, rc = LDAP_REFERRAL,
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e->e_dn, NULL, refs, NULL );
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ber_bvarray_free( refs );
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goto done;
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}
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if ( ! access_allowed( be, conn, op, e,
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ava->aa_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
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{
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rc = LDAP_INSUFFICIENT_ACCESS;
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goto return_results;
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}
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rc = LDAP_NO_SUCH_ATTRIBUTE;
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for(a = attrs_find( e->e_attrs, ava->aa_desc );
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a != NULL;
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a = attrs_find( a->a_next, ava->aa_desc ))
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{
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rc = LDAP_COMPARE_FALSE;
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if ( value_find( ava->aa_desc, a->a_vals, &ava->aa_value ) == 0 ) {
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rc = LDAP_COMPARE_TRUE;
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break;
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}
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}
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return_results:
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send_ldap_result( conn, op, rc,
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NULL, text, NULL, NULL );
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if( rc == LDAP_COMPARE_FALSE || rc == LDAP_COMPARE_TRUE ) {
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rc = LDAP_SUCCESS;
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}
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done:
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/* free entry */
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if( e != NULL ) {
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bdb_cache_return_entry_r( bdb->bi_dbenv, &bdb->bi_cache, e, &lock );
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}
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LOCK_ID_FREE ( bdb->bi_dbenv, locker );
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return rc;
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}
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