mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
ff263ec6a7
failure
359 lines
9.4 KiB
C
359 lines
9.4 KiB
C
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
*/
|
|
/*
|
|
* Copyright (c) 1995 Regents of the University of Michigan.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted
|
|
* provided that this notice is preserved and that due credit is given
|
|
* to the University of Michigan at Ann Arbor. The name of the University
|
|
* may not be used to endorse or promote products derived from this
|
|
* software without specific prior written permission. This software
|
|
* is provided ``as is'' without express or implied warranty.
|
|
*/
|
|
|
|
#include "portable.h"
|
|
#include "slapi_common.h"
|
|
|
|
#include <stdio.h>
|
|
#include <ac/socket.h>
|
|
|
|
#include "ldap_pvt.h"
|
|
#include "slap.h"
|
|
#include "slapi.h"
|
|
|
|
static int compare_entry(
|
|
Connection *conn,
|
|
Operation *op,
|
|
Entry *e,
|
|
AttributeAssertion *ava );
|
|
|
|
int
|
|
do_compare(
|
|
Connection *conn,
|
|
Operation *op
|
|
)
|
|
{
|
|
Entry *entry = NULL;
|
|
Entry *fentry = NULL;
|
|
struct berval dn = { 0, NULL };
|
|
struct berval pdn = { 0, NULL };
|
|
struct berval ndn = { 0, NULL };
|
|
struct berval desc = { 0, NULL };
|
|
struct berval value = { 0, NULL };
|
|
AttributeAssertion ava = { NULL, { 0, NULL } };
|
|
Backend *be;
|
|
int rc = LDAP_SUCCESS;
|
|
const char *text = NULL;
|
|
int manageDSAit;
|
|
|
|
Slapi_PBlock *pb = op->o_pb;
|
|
|
|
ava.aa_desc = NULL;
|
|
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, ENTRY, "do_compare: conn %d\n", conn->c_connid, 0, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
|
|
#endif
|
|
/*
|
|
* Parse the compare request. It looks like this:
|
|
*
|
|
* CompareRequest := [APPLICATION 14] SEQUENCE {
|
|
* entry DistinguishedName,
|
|
* ava SEQUENCE {
|
|
* type AttributeType,
|
|
* value AttributeValue
|
|
* }
|
|
* }
|
|
*/
|
|
|
|
if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, ERR,
|
|
"do_compare: conn %d ber_scanf failed\n", conn->c_connid, 0, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
|
|
#endif
|
|
send_ldap_disconnect( conn, op,
|
|
LDAP_PROTOCOL_ERROR, "decoding error" );
|
|
return SLAPD_DISCONNECT;
|
|
}
|
|
|
|
if ( ber_scanf( op->o_ber, "{mm}", &desc, &value ) == LBER_ERROR ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, ERR,
|
|
"do_compare: conn %d get ava failed\n", conn->c_connid, 0, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 );
|
|
#endif
|
|
send_ldap_disconnect( conn, op,
|
|
LDAP_PROTOCOL_ERROR, "decoding error" );
|
|
rc = SLAPD_DISCONNECT;
|
|
goto cleanup;
|
|
}
|
|
|
|
if ( ber_scanf( op->o_ber, /*{*/ "}" ) == LBER_ERROR ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, ERR,
|
|
"do_compare: conn %d ber_scanf failed\n", conn->c_connid, 0, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
|
|
#endif
|
|
send_ldap_disconnect( conn, op,
|
|
LDAP_PROTOCOL_ERROR, "decoding error" );
|
|
rc = SLAPD_DISCONNECT;
|
|
goto cleanup;
|
|
}
|
|
|
|
if( ( rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, INFO,
|
|
"do_compare: conn %d get_ctrls failed\n", conn->c_connid, 0, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 );
|
|
#endif
|
|
goto cleanup;
|
|
}
|
|
|
|
rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
|
|
if( rc != LDAP_SUCCESS ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, INFO,
|
|
"do_compare: conn %d invalid dn (%s)\n",
|
|
conn->c_connid, dn.bv_val, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"do_compare: invalid dn (%s)\n", dn.bv_val, 0, 0 );
|
|
#endif
|
|
send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
|
|
"invalid DN", NULL, NULL );
|
|
goto cleanup;
|
|
}
|
|
|
|
rc = slap_bv2ad( &desc, &ava.aa_desc, &text );
|
|
if( rc != LDAP_SUCCESS ) {
|
|
send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
|
|
goto cleanup;
|
|
}
|
|
|
|
rc = value_validate_normalize( ava.aa_desc, SLAP_MR_EQUALITY,
|
|
&value, &ava.aa_value, &text );
|
|
if( rc != LDAP_SUCCESS ) {
|
|
send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
|
|
goto cleanup;
|
|
}
|
|
|
|
if( strcasecmp( ndn.bv_val, LDAP_ROOT_DSE ) == 0 ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, ARGS,
|
|
"do_compare: dn (%s) attr(%s) value (%s)\n",
|
|
pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
|
|
#else
|
|
Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
|
|
pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
|
|
#endif
|
|
|
|
Statslog( LDAP_DEBUG_STATS,
|
|
"conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n",
|
|
op->o_connid, op->o_opid, pdn.bv_val,
|
|
ava.aa_desc->ad_cname.bv_val, 0 );
|
|
|
|
rc = backend_check_restrictions( NULL, conn, op, NULL, &text ) ;
|
|
if( rc != LDAP_SUCCESS ) {
|
|
send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
|
|
goto cleanup;
|
|
}
|
|
|
|
rc = root_dse_info( conn, &entry, &text );
|
|
if( rc != LDAP_SUCCESS ) {
|
|
send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
|
|
goto cleanup;
|
|
}
|
|
|
|
fentry = entry;
|
|
|
|
} else if ( bvmatch( &ndn, &global_schemandn ) ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, ARGS,
|
|
"do_compare: dn (%s) attr(%s) value (%s)\n",
|
|
pdn.bv_val, ava.aa_desc->ad_cname.bv_val,
|
|
ava.aa_value.bv_val );
|
|
#else
|
|
Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
|
|
pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
|
|
#endif
|
|
|
|
Statslog( LDAP_DEBUG_STATS,
|
|
"conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n",
|
|
op->o_connid, op->o_opid, pdn.bv_val,
|
|
ava.aa_desc->ad_cname.bv_val, 0 );
|
|
|
|
rc = backend_check_restrictions( NULL, conn, op, NULL, &text ) ;
|
|
if( rc != LDAP_SUCCESS ) {
|
|
send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
|
|
rc = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
rc = schema_info( &entry, &text );
|
|
if( rc != LDAP_SUCCESS ) {
|
|
send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
|
|
rc = 0;
|
|
goto cleanup;
|
|
}
|
|
fentry = entry;
|
|
}
|
|
|
|
if( entry ) {
|
|
rc = compare_entry( conn, op, entry, &ava );
|
|
if( fentry) entry_free( fentry );
|
|
|
|
send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
|
|
|
|
if( rc == LDAP_COMPARE_TRUE || rc == LDAP_COMPARE_FALSE ) {
|
|
rc = 0;
|
|
}
|
|
|
|
goto cleanup;
|
|
}
|
|
|
|
manageDSAit = get_manageDSAit( op );
|
|
|
|
/*
|
|
* We could be serving multiple database backends. Select the
|
|
* appropriate one, or send a referral to our "referral server"
|
|
* if we don't hold it.
|
|
*/
|
|
if ( (be = select_backend( &ndn, manageDSAit, 0 )) == NULL ) {
|
|
BerVarray ref = referral_rewrite( default_referral,
|
|
NULL, &pdn, LDAP_SCOPE_DEFAULT );
|
|
|
|
send_ldap_result( conn, op, rc = LDAP_REFERRAL,
|
|
NULL, NULL, ref ? ref : default_referral, NULL );
|
|
|
|
ber_bvarray_free( ref );
|
|
rc = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
/* check restrictions */
|
|
rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
|
|
if( rc != LDAP_SUCCESS ) {
|
|
send_ldap_result( conn, op, rc,
|
|
NULL, text, NULL, NULL );
|
|
goto cleanup;
|
|
}
|
|
|
|
/* check for referrals */
|
|
rc = backend_check_referrals( be, conn, op, &pdn, &ndn );
|
|
if ( rc != LDAP_SUCCESS ) {
|
|
goto cleanup;
|
|
}
|
|
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, ARGS,
|
|
"do_compare: dn (%s) attr(%s) value (%s)\n",
|
|
pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
|
|
#else
|
|
Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
|
|
pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
|
|
#endif
|
|
|
|
Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n",
|
|
op->o_connid, op->o_opid, pdn.bv_val,
|
|
ava.aa_desc->ad_cname.bv_val, 0 );
|
|
|
|
|
|
/* deref suffix alias if appropriate */
|
|
suffix_alias( be, &ndn );
|
|
|
|
#if defined( LDAP_SLAPI )
|
|
slapi_x_backend_set_pb( pb, be );
|
|
slapi_x_connection_set_pb( pb, conn );
|
|
slapi_x_operation_set_pb( pb, op );
|
|
slapi_pblock_set( pb, SLAPI_COMPARE_TARGET, (void *)dn.bv_val );
|
|
slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)(1) );
|
|
slapi_pblock_set( pb, SLAPI_COMPARE_TYPE, (void *)desc.bv_val );
|
|
slapi_pblock_set( pb, SLAPI_COMPARE_VALUE, (void *)&value );
|
|
|
|
rc = doPluginFNs( be, SLAPI_PLUGIN_PRE_COMPARE_FN, pb );
|
|
if ( rc != 0 ) {
|
|
/*
|
|
* A preoperation plugin failure will abort the
|
|
* entire operation.
|
|
*/
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, INFO, "do_compare: compare preoperation plugin "
|
|
"failed\n", 0, 0, 0);
|
|
#else
|
|
Debug(LDAP_DEBUG_TRACE, "do_compare: compare preoperation plugin "
|
|
"failed.\n", 0, 0, 0);
|
|
#endif
|
|
if ( slapi_pblock_get( pb, SLAPI_RESULT_CODE, (void *)&rc ) != 0)
|
|
rc = LDAP_OTHER;
|
|
goto cleanup;
|
|
}
|
|
#endif /* defined( LDAP_SLAPI ) */
|
|
|
|
if ( be->be_compare ) {
|
|
(*be->be_compare)( be, conn, op, &pdn, &ndn, &ava );
|
|
} else {
|
|
send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
|
|
NULL, "operation not supported within namingContext",
|
|
NULL, NULL );
|
|
}
|
|
|
|
#if defined( LDAP_SLAPI )
|
|
if ( doPluginFNs( be, SLAPI_PLUGIN_POST_COMPARE_FN, pb ) != 0 ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( OPERATION, INFO, "do_compare: compare postoperation plugins "
|
|
"failed\n", 0, 0, 0 );
|
|
#else
|
|
Debug(LDAP_DEBUG_TRACE, "do_compare: compare postoperation plugins "
|
|
"failed.\n", 0, 0, 0);
|
|
#endif
|
|
}
|
|
#endif /* defined( LDAP_SLAPI ) */
|
|
|
|
cleanup:
|
|
free( pdn.bv_val );
|
|
free( ndn.bv_val );
|
|
if ( ava.aa_value.bv_val ) free( ava.aa_value.bv_val );
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int compare_entry(
|
|
Connection *conn,
|
|
Operation *op,
|
|
Entry *e,
|
|
AttributeAssertion *ava )
|
|
{
|
|
int rc = LDAP_NO_SUCH_ATTRIBUTE;
|
|
Attribute *a;
|
|
|
|
if ( ! access_allowed( NULL, conn, op, e,
|
|
ava->aa_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
|
|
{
|
|
return LDAP_INSUFFICIENT_ACCESS;
|
|
}
|
|
|
|
for(a = attrs_find( e->e_attrs, ava->aa_desc );
|
|
a != NULL;
|
|
a = attrs_find( a->a_next, ava->aa_desc ))
|
|
{
|
|
rc = LDAP_COMPARE_FALSE;
|
|
|
|
if ( value_find( ava->aa_desc, a->a_vals, &ava->aa_value ) == 0 ) {
|
|
rc = LDAP_COMPARE_TRUE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|