mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
516fd0ff50
(slapi_x_XXX is still reserved for exported functions that are not part of the SLAPI specification)
352 lines
9.7 KiB
C
352 lines
9.7 KiB
C
/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1998-2003 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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/* Portions Copyright (c) 1995 Regents of the University of Michigan.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and that due credit is given
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* to the University of Michigan at Ann Arbor. The name of the University
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* may not be used to endorse or promote products derived from this
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* software without specific prior written permission. This software
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* is provided ``as is'' without express or implied warranty.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include "ldap_pvt.h"
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#include "slap.h"
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#ifdef LDAP_SLAPI
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#include "slapi.h"
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#endif
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static int compare_entry(
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Operation *op,
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Entry *e,
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AttributeAssertion *ava );
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int
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do_compare(
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Operation *op,
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SlapReply *rs
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)
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{
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Entry *entry = NULL;
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struct berval dn = { 0, NULL };
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struct berval desc = { 0, NULL };
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struct berval value = { 0, NULL };
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AttributeAssertion ava = { NULL, { 0, NULL } };
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int manageDSAit;
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ava.aa_desc = NULL;
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, ENTRY, "do_compare: conn %d\n", op->o_connid, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
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#endif
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/*
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* Parse the compare request. It looks like this:
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*
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* CompareRequest := [APPLICATION 14] SEQUENCE {
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* entry DistinguishedName,
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* ava SEQUENCE {
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* type AttributeType,
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* value AttributeValue
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* }
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* }
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*/
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if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, ERR,
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"do_compare: conn %d ber_scanf failed\n", op->o_connid, 0, 0 );
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#else
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Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
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#endif
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send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
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return SLAPD_DISCONNECT;
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}
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if ( ber_scanf( op->o_ber, "{mm}", &desc, &value ) == LBER_ERROR ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, ERR,
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"do_compare: conn %d get ava failed\n", op->o_connid, 0, 0 );
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#else
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Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 );
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#endif
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send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
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return SLAPD_DISCONNECT;
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}
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if ( ber_scanf( op->o_ber, /*{*/ "}" ) == LBER_ERROR ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, ERR,
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"do_compare: conn %d ber_scanf failed\n", op->o_connid, 0, 0 );
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#else
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Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
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#endif
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send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
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return SLAPD_DISCONNECT;
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}
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if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, INFO,
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"do_compare: conn %d get_ctrls failed\n", op->o_connid, 0, 0 );
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#else
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Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 );
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#endif
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goto cleanup;
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}
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rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx );
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if( rs->sr_err != LDAP_SUCCESS ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, INFO,
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"do_compare: conn %d invalid dn (%s)\n",
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op->o_connid, dn.bv_val, 0 );
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#else
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Debug( LDAP_DEBUG_ANY,
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"do_compare: invalid dn (%s)\n", dn.bv_val, 0, 0 );
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#endif
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send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
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goto cleanup;
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}
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rs->sr_err = slap_bv2ad( &desc, &ava.aa_desc, &rs->sr_text );
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if( rs->sr_err != LDAP_SUCCESS ) {
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send_ldap_result( op, rs );
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goto cleanup;
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}
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rs->sr_err = asserted_value_validate_normalize( ava.aa_desc,
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ava.aa_desc->ad_type->sat_equality,
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SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
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&value, &ava.aa_value, &rs->sr_text, op->o_tmpmemctx );
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if( rs->sr_err != LDAP_SUCCESS ) {
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send_ldap_result( op, rs );
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goto cleanup;
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}
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if( strcasecmp( op->o_req_ndn.bv_val, LDAP_ROOT_DSE ) == 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, ARGS,
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"do_compare: dn (%s) attr(%s) value (%s)\n",
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op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
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#else
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Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
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op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
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#endif
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Statslog( LDAP_DEBUG_STATS,
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"conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n",
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op->o_connid, op->o_opid, op->o_req_dn.bv_val,
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ava.aa_desc->ad_cname.bv_val, 0 );
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if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
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send_ldap_result( op, rs );
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goto cleanup;
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}
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rs->sr_err = root_dse_info( op->o_conn, &entry, &rs->sr_text );
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if( rs->sr_err != LDAP_SUCCESS ) {
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send_ldap_result( op, rs );
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goto cleanup;
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}
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} else if ( bvmatch( &op->o_req_ndn, &global_schemandn ) ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, ARGS,
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"do_compare: dn (%s) attr(%s) value (%s)\n",
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op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val,
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ava.aa_value.bv_val );
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#else
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Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
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op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
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#endif
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Statslog( LDAP_DEBUG_STATS,
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"conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n",
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op->o_connid, op->o_opid, op->o_req_dn.bv_val,
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ava.aa_desc->ad_cname.bv_val, 0 );
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if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
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send_ldap_result( op, rs );
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rs->sr_err = 0;
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goto cleanup;
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}
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rs->sr_err = schema_info( &entry, &rs->sr_text );
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if( rs->sr_err != LDAP_SUCCESS ) {
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send_ldap_result( op, rs );
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rs->sr_err = 0;
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goto cleanup;
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}
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}
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if( entry ) {
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rs->sr_err = compare_entry( op, entry, &ava );
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entry_free( entry );
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send_ldap_result( op, rs );
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if( rs->sr_err == LDAP_COMPARE_TRUE || rs->sr_err == LDAP_COMPARE_FALSE ) {
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rs->sr_err = 0;
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}
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goto cleanup;
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}
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manageDSAit = get_manageDSAit( op );
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/*
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* We could be serving multiple database backends. Select the
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* appropriate one, or send a referral to our "referral server"
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* if we don't hold it.
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*/
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if ( (op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 )) == NULL ) {
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rs->sr_ref = referral_rewrite( default_referral,
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NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
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rs->sr_err = LDAP_REFERRAL;
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if (!rs->sr_ref) rs->sr_ref = default_referral;
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send_ldap_result( op, rs );
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if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
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rs->sr_err = 0;
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goto cleanup;
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}
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/* check restrictions */
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if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
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send_ldap_result( op, rs );
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goto cleanup;
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}
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/* check for referrals */
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if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
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goto cleanup;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, ARGS,
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"do_compare: dn (%s) attr(%s) value (%s)\n",
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op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
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#else
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Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
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op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
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#endif
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Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n",
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op->o_connid, op->o_opid, op->o_req_dn.bv_val,
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ava.aa_desc->ad_cname.bv_val, 0 );
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#if defined( LDAP_SLAPI )
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#define pb op->o_pb
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if ( pb ) {
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slapi_int_pblock_set_operation( pb, op );
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slapi_pblock_set( pb, SLAPI_COMPARE_TARGET, (void *)dn.bv_val );
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slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
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slapi_pblock_set( pb, SLAPI_COMPARE_TYPE, (void *)desc.bv_val );
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slapi_pblock_set( pb, SLAPI_COMPARE_VALUE, (void *)&value );
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rs->sr_err = doPluginFNs( op->o_bd, SLAPI_PLUGIN_PRE_COMPARE_FN, pb );
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if ( rs->sr_err < 0 ) {
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/*
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* A preoperation plugin failure will abort the
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* entire operation.
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*/
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, INFO, "do_compare: compare preoperation plugin "
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"failed\n", 0, 0, 0);
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#else
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Debug(LDAP_DEBUG_TRACE, "do_compare: compare preoperation plugin "
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"failed.\n", 0, 0, 0);
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#endif
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if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE, (void *)&rs->sr_err ) != 0 ) ||
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rs->sr_err == LDAP_SUCCESS ) {
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rs->sr_err = LDAP_OTHER;
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}
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goto cleanup;
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}
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}
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#endif /* defined( LDAP_SLAPI ) */
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if ( op->o_bd->be_compare ) {
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op->orc_ava = &ava;
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op->o_bd->be_compare( op, rs );
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} else {
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send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
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"operation not supported within namingContext" );
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}
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#if defined( LDAP_SLAPI )
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if ( pb && doPluginFNs( op->o_bd, SLAPI_PLUGIN_POST_COMPARE_FN, pb ) < 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( OPERATION, INFO, "do_compare: compare postoperation plugins "
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"failed\n", 0, 0, 0 );
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#else
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Debug(LDAP_DEBUG_TRACE, "do_compare: compare postoperation plugins "
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"failed.\n", 0, 0, 0);
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#endif
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}
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#endif /* defined( LDAP_SLAPI ) */
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cleanup:
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op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
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op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
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if ( ava.aa_value.bv_val ) op->o_tmpfree( ava.aa_value.bv_val, op->o_tmpmemctx );
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return rs->sr_err;
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}
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static int compare_entry(
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Operation *op,
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Entry *e,
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AttributeAssertion *ava )
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{
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int rc = LDAP_NO_SUCH_ATTRIBUTE;
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Attribute *a;
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if ( ! access_allowed( op, e,
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ava->aa_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
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{
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return LDAP_INSUFFICIENT_ACCESS;
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}
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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_ex( ava->aa_desc,
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SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
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SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
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a->a_nvals,
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&ava->aa_value, op->o_tmpmemctx ) == 0 )
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{
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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 rc;
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}
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