mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
361 lines
9.0 KiB
C
361 lines
9.0 KiB
C
/*
|
|
* Copyright 1998-2001 The OpenLDAP Foundation, All Rights Reserved.
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
*
|
|
* Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
|
|
*
|
|
* This work has been developed to fulfill the requirements
|
|
* of SysNet s.n.c. <http:www.sys-net.it> and it has been donated
|
|
* to the OpenLDAP Foundation in the hope that it may be useful
|
|
* to the Open Source community, but WITHOUT ANY WARRANTY.
|
|
*
|
|
* Permission is granted to anyone to use this software for any purpose
|
|
* on any computer system, and to alter it and redistribute it, subject
|
|
* to the following restrictions:
|
|
*
|
|
* 1. The author and SysNet s.n.c. are not responsible for the consequences
|
|
* of use of this software, no matter how awful, even if they arise from
|
|
* flaws in it.
|
|
*
|
|
* 2. The origin of this software must not be misrepresented, either by
|
|
* explicit claim or by omission. Since few users ever read sources,
|
|
* credits should appear in the documentation.
|
|
*
|
|
* 3. Altered versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software. Since few users
|
|
* ever read sources, credits should appear in the documentation.
|
|
* SysNet s.n.c. cannot be responsible for the consequences of the
|
|
* alterations.
|
|
*
|
|
* 4. This notice may not be removed or altered.
|
|
*
|
|
*
|
|
* This software is based on the backend back-ldap, implemented
|
|
* by Howard Chu <hyc@highlandsun.com>, and modified by Mark Valence
|
|
* <kurash@sassafras.com>, Pierangelo Masarati <ando@sys-net.it> and other
|
|
* contributors. The contribution of the original software to the present
|
|
* implementation is acknowledged in this copyright statement.
|
|
*
|
|
* A special acknowledgement goes to Howard for the overall architecture
|
|
* (and for borrowing large pieces of code), and to Mark, who implemented
|
|
* from scratch the attribute/objectclass mapping.
|
|
*
|
|
* The original copyright statement follows.
|
|
*
|
|
* Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
|
|
*
|
|
* Permission is granted to anyone to use this software for any purpose
|
|
* on any computer system, and to alter it and redistribute it, subject
|
|
* to the following restrictions:
|
|
*
|
|
* 1. The author is not responsible for the consequences of use of this
|
|
* software, no matter how awful, even if they arise from flaws in it.
|
|
*
|
|
* 2. The origin of this software must not be misrepresented, either by
|
|
* explicit claim or by omission. Since few users ever read sources,
|
|
* credits should appear in the documentation.
|
|
*
|
|
* 3. Altered versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software. Since few users
|
|
* ever read sources, credits should appear in the
|
|
* documentation.
|
|
*
|
|
* 4. This notice may not be removed or altered.
|
|
*
|
|
*/
|
|
|
|
#include "portable.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <ac/string.h>
|
|
#include <ac/socket.h>
|
|
|
|
#include "slap.h"
|
|
#include "../back-ldap/back-ldap.h"
|
|
#include "back-meta.h"
|
|
|
|
int
|
|
meta_back_compare(
|
|
Backend *be,
|
|
Connection *conn,
|
|
Operation *op,
|
|
struct berval *dn,
|
|
struct berval *ndn,
|
|
AttributeAssertion *ava
|
|
)
|
|
{
|
|
struct metainfo *li = ( struct metainfo * )be->be_private;
|
|
struct metaconn *lc;
|
|
struct metasingleconn **lsc;
|
|
char *match = NULL, *err = NULL, *mmatch = NULL;
|
|
int candidates = 0, last = 0, i, count, rc;
|
|
int cres = LDAP_SUCCESS, rres = LDAP_SUCCESS;
|
|
int *msgid;
|
|
|
|
lc = meta_back_getconn( li, conn, op, META_OP_ALLOW_MULTIPLE,
|
|
ndn, NULL );
|
|
if ( !lc || !meta_back_dobind( lc, op ) ) {
|
|
return -1;
|
|
}
|
|
|
|
msgid = ch_calloc( sizeof( int ), li->ntargets );
|
|
if ( msgid == NULL ) {
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* start an asynchronous compare for each candidate target
|
|
*/
|
|
for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; ++i, ++lsc ) {
|
|
char *mdn = NULL;
|
|
char *mapped_attr = ava->aa_desc->ad_cname.bv_val;
|
|
char *mapped_value = ava->aa_value->bv_val;
|
|
|
|
if ( lsc[ 0 ]->candidate != META_CANDIDATE ) {
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Rewrite the compare dn, if needed
|
|
*/
|
|
switch ( rewrite_session( li->targets[ i ]->rwinfo,
|
|
"compareDn",
|
|
dn->bv_val, conn, &mdn ) ) {
|
|
case REWRITE_REGEXEC_OK:
|
|
if ( mdn == NULL ) {
|
|
mdn = ( char * )dn->bv_val;
|
|
}
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
|
|
"[rw] compareDn: \"%s\" -> \"%s\"\n",
|
|
dn->bv_val, mdn ));
|
|
#else /* !NEW_LOGGING */
|
|
Debug( LDAP_DEBUG_ARGS,
|
|
"rw> compareDn: \"%s\" -> \"%s\"\n%s",
|
|
dn->bv_val, mdn, "" );
|
|
#endif /* !NEW_LOGGING */
|
|
break;
|
|
|
|
case REWRITE_REGEXEC_UNWILLING:
|
|
send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM,
|
|
NULL, "Unwilling to perform",
|
|
NULL, NULL );
|
|
return -1;
|
|
|
|
case REWRITE_REGEXEC_ERR:
|
|
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
|
|
NULL, "Operations error",
|
|
NULL, NULL );
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* if attr is objectClass, try to remap the value
|
|
*/
|
|
if ( ava->aa_desc->ad_type->sat_oid
|
|
== slap_schema.si_ad_objectClass->ad_type->sat_oid ) {
|
|
mapped_value = ldap_back_map( &li->targets[ i ]->oc_map,
|
|
ava->aa_value->bv_val, 0 );
|
|
|
|
if ( mapped_value == NULL ) {
|
|
lsc[ 0 ]->candidate = META_NOT_CANDIDATE;
|
|
continue;
|
|
}
|
|
/*
|
|
* else try to remap the attribute
|
|
*/
|
|
} else {
|
|
mapped_attr = ldap_back_map( &li->targets[ i ]->at_map,
|
|
ava->aa_desc->ad_cname.bv_val, 0 );
|
|
if ( mapped_attr == NULL ) {
|
|
lsc[ 0 ]->candidate = META_NOT_CANDIDATE;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* the compare op is spawned across the targets and the first
|
|
* that returns determines the result; a constraint on unicity
|
|
* of the result ought to be enforced
|
|
*/
|
|
msgid[ i ] = ldap_compare( lc->conns[ i ]->ld, mdn,
|
|
mapped_attr, mapped_value );
|
|
if ( msgid[ i ] == -1 ) {
|
|
lsc[ 0 ]->candidate = META_NOT_CANDIDATE;
|
|
continue;
|
|
}
|
|
|
|
if ( mdn != dn->bv_val ) {
|
|
free( mdn );
|
|
}
|
|
if ( mapped_attr != ava->aa_desc->ad_cname.bv_val ) {
|
|
free( mapped_attr );
|
|
}
|
|
if ( mapped_value != ava->aa_value->bv_val ) {
|
|
free( mapped_value );
|
|
}
|
|
|
|
++candidates;
|
|
}
|
|
|
|
/*
|
|
* wait for replies
|
|
*/
|
|
for ( rc = 0, count = 0; candidates > 0; ) {
|
|
|
|
/*
|
|
* FIXME: should we check for abandon?
|
|
*/
|
|
for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; lsc++, i++ ) {
|
|
int lrc;
|
|
LDAPMessage *res = NULL;
|
|
|
|
if ( lsc[ 0 ]->candidate != META_CANDIDATE ) {
|
|
continue;
|
|
}
|
|
|
|
lrc = ldap_result( lsc[ 0 ]->ld, msgid[ i ],
|
|
0, NULL, &res );
|
|
|
|
if ( lrc == 0 ) {
|
|
/*
|
|
* FIXME: should we yield?
|
|
*/
|
|
if ( res ) {
|
|
ldap_msgfree( res );
|
|
}
|
|
continue;
|
|
} else if ( lrc == LDAP_RES_COMPARE ) {
|
|
if ( count > 0 ) {
|
|
rres = LDAP_OPERATIONS_ERROR;
|
|
rc = -1;
|
|
goto finish;
|
|
}
|
|
|
|
cres = ldap_result2error( lsc[ 0 ]->ld,
|
|
res, 1 );
|
|
switch ( cres ) {
|
|
case LDAP_COMPARE_TRUE:
|
|
case LDAP_COMPARE_FALSE:
|
|
|
|
/*
|
|
* true or flase, got it;
|
|
* sending to cache ...
|
|
*/
|
|
if ( li->cache.ttl != META_DNCACHE_DISABLED ) {
|
|
( void )meta_dncache_update_entry( &li->cache, ber_bvdup( ndn ), i );
|
|
}
|
|
|
|
count++;
|
|
rc = 0;
|
|
break;
|
|
|
|
default:
|
|
rres = ldap_back_map_result( cres );
|
|
|
|
if ( err != NULL ) {
|
|
free( err );
|
|
}
|
|
ldap_get_option( lsc[ 0 ]->ld,
|
|
LDAP_OPT_ERROR_STRING, &err );
|
|
|
|
if ( match != NULL ) {
|
|
free( match );
|
|
}
|
|
ldap_get_option( lsc[ 0 ]->ld,
|
|
LDAP_OPT_MATCHED_DN, &match );
|
|
|
|
last = i;
|
|
break;
|
|
}
|
|
lsc[ 0 ]->candidate = META_NOT_CANDIDATE;
|
|
--candidates;
|
|
} else {
|
|
lsc[ 0 ]->candidate = META_NOT_CANDIDATE;
|
|
--candidates;
|
|
if ( res ) {
|
|
ldap_msgfree( res );
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
finish:;
|
|
|
|
/*
|
|
* Rewrite the matched portion of the search base, if required
|
|
*
|
|
* FIXME: only the last one gets caught!
|
|
*/
|
|
if ( count == 1 ) {
|
|
if ( match != NULL ) {
|
|
free( match );
|
|
match = NULL;
|
|
}
|
|
|
|
/*
|
|
* the result of the compare is assigned to the res code
|
|
* that will be returned
|
|
*/
|
|
rres = cres;
|
|
|
|
} else if ( match != NULL ) {
|
|
|
|
/*
|
|
* At least one compare failed with matched portion,
|
|
* and none was successful
|
|
*/
|
|
switch ( rewrite_session( li->targets[ last ]->rwinfo,
|
|
"matchedDn", match, conn, &mmatch ) ) {
|
|
case REWRITE_REGEXEC_OK:
|
|
if ( mmatch == NULL ) {
|
|
mmatch = ( char * )match;
|
|
}
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
|
|
"[rw] matchedDn: \"%s\" -> \"%s\"\n",
|
|
match, mmatch ));
|
|
#else /* !NEW_LOGGING */
|
|
Debug( LDAP_DEBUG_ARGS, "rw> matchedDn:"
|
|
" \"%s\" -> \"%s\"\n%s",
|
|
match, mmatch, "" );
|
|
#endif /* !NEW_LOGGING */
|
|
break;
|
|
|
|
|
|
case REWRITE_REGEXEC_UNWILLING:
|
|
send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM,
|
|
NULL, "Unwilling to perform",
|
|
NULL, NULL );
|
|
rc = -1;
|
|
goto cleanup;
|
|
|
|
case REWRITE_REGEXEC_ERR:
|
|
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
|
|
NULL, "Operations error",
|
|
NULL, NULL );
|
|
rc = -1;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
send_ldap_result( conn, op, rres, mmatch, err, NULL, NULL );
|
|
|
|
cleanup:;
|
|
if ( match != NULL ) {
|
|
if ( mmatch != match ) {
|
|
free( mmatch );
|
|
}
|
|
free( match );
|
|
}
|
|
|
|
if ( msgid ) {
|
|
free( msgid );
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|