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/* allop.c - returns all operational attributes when appropriate */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2005-2022 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* ACKNOWLEDGEMENTS:
* This work was initially developed by Pierangelo Masarati for inclusion in
* OpenLDAP Software.
*/
/*
* The intended usage is as a global overlay for use with those clients
* that do not make use of the RFC3673 allOp ("+") in the requested
* attribute list, but expect all operational attributes to be returned.
* Usage: add
*
overlay allop
allop-URI <ldapURI>
*
* if the allop-URI is not given, the rootDSE, i.e. "ldap:///??base",
* is assumed.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include "slap.h"
#include "slap-config.h"
#define SLAP_OVER_VERSION_REQUIRE(major,minor,patch) \
( \
( LDAP_VENDOR_VERSION_MAJOR == X || LDAP_VENDOR_VERSION_MAJOR >= (major) ) \
&& ( LDAP_VENDOR_VERSION_MINOR == X || LDAP_VENDOR_VERSION_MINOR >= (minor) ) \
&& ( LDAP_VENDOR_VERSION_PATCH == X || LDAP_VENDOR_VERSION_PATCH >= (patch) ) \
)
#if !SLAP_OVER_VERSION_REQUIRE(2,3,0)
#error "version mismatch"
#endif
typedef struct allop_t {
struct berval ao_ndn;
int ao_scope;
} allop_t;
static int
allop_db_config(
BackendDB *be,
const char *fname,
int lineno,
int argc,
char **argv )
{
slap_overinst *on = (slap_overinst *)be->bd_info;
allop_t *ao = (allop_t *)on->on_bi.bi_private;
if ( strcasecmp( argv[ 0 ], "allop-uri" ) == 0 ) {
LDAPURLDesc *lud;
struct berval dn,
ndn;
int scope,
rc = LDAP_SUCCESS;
if ( argc != 2 ) {
fprintf( stderr, "%s line %d: "
"need exactly 1 arg "
"in \"allop-uri <ldapURI>\" "
"directive.\n",
fname, lineno );
return 1;
}
if ( ldap_url_parse( argv[ 1 ], &lud ) != LDAP_URL_SUCCESS ) {
return -1;
}
scope = lud->lud_scope;
if ( scope == LDAP_SCOPE_DEFAULT ) {
scope = LDAP_SCOPE_BASE;
}
if ( lud->lud_dn == NULL || lud->lud_dn[ 0 ] == '\0' ) {
if ( scope == LDAP_SCOPE_BASE ) {
BER_BVZERO( &ndn );
} else {
ber_str2bv( "", 0, 1, &ndn );
}
} else {
ber_str2bv( lud->lud_dn, 0, 0, &dn );
rc = dnNormalize( 0, NULL, NULL, &dn, &ndn, NULL );
}
ldap_free_urldesc( lud );
if ( rc != LDAP_SUCCESS ) {
return -1;
}
if ( BER_BVISNULL( &ndn ) ) {
/* rootDSE */
if ( ao != NULL ) {
ch_free( ao->ao_ndn.bv_val );
ch_free( ao );
on->on_bi.bi_private = NULL;
}
} else {
if ( ao == NULL ) {
ao = ch_calloc( 1, sizeof( allop_t ) );
on->on_bi.bi_private = (void *)ao;
} else {
ch_free( ao->ao_ndn.bv_val );
}
ao->ao_ndn = ndn;
ao->ao_scope = scope;
}
} else {
return SLAP_CONF_UNKNOWN;
}
return 0;
}
static int
allop_db_destroy( BackendDB *be, ConfigReply *cr )
{
slap_overinst *on = (slap_overinst *)be->bd_info;
allop_t *ao = (allop_t *)on->on_bi.bi_private;
if ( ao != NULL ) {
assert( !BER_BVISNULL( &ao->ao_ndn ) );
ch_free( ao->ao_ndn.bv_val );
ch_free( ao );
on->on_bi.bi_private = NULL;
}
return 0;
}
static int
allop_op_search( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
allop_t *ao = (allop_t *)on->on_bi.bi_private;
slap_mask_t mask;
int i,
add_allUser = 0;
if ( ao == NULL ) {
if ( !BER_BVISEMPTY( &op->o_req_ndn )
|| op->ors_scope != LDAP_SCOPE_BASE )
{
return SLAP_CB_CONTINUE;
}
} else {
if ( !dnIsSuffix( &op->o_req_ndn, &ao->ao_ndn ) ) {
return SLAP_CB_CONTINUE;
}
switch ( ao->ao_scope ) {
case LDAP_SCOPE_BASE:
if ( op->o_req_ndn.bv_len != ao->ao_ndn.bv_len ) {
return SLAP_CB_CONTINUE;
}
break;
case LDAP_SCOPE_ONELEVEL:
if ( op->ors_scope == LDAP_SCOPE_BASE ) {
struct berval rdn = op->o_req_ndn;
rdn.bv_len -= ao->ao_ndn.bv_len + STRLENOF( "," );
if ( !dnIsOneLevelRDN( &rdn ) ) {
return SLAP_CB_CONTINUE;
}
break;
}
return SLAP_CB_CONTINUE;
case LDAP_SCOPE_SUBTREE:
break;
}
}
mask = slap_attr_flags( op->ors_attrs );
if ( SLAP_OPATTRS( mask ) ) {
return SLAP_CB_CONTINUE;
}
if ( !SLAP_USERATTRS( mask ) ) {
return SLAP_CB_CONTINUE;
}
i = 0;
if ( op->ors_attrs == NULL ) {
add_allUser = 1;
} else {
for ( ; !BER_BVISNULL( &op->ors_attrs[ i ].an_name ); i++ )
;
}
op->ors_attrs = op->o_tmprealloc( op->ors_attrs,
sizeof( AttributeName ) * ( i + add_allUser + 2 ),
op->o_tmpmemctx );
if ( add_allUser ) {
op->ors_attrs[ i ] = slap_anlist_all_user_attributes[ 0 ];
i++;
}
op->ors_attrs[ i ] = slap_anlist_all_operational_attributes[ 0 ];
BER_BVZERO( &op->ors_attrs[ i + 1 ].an_name );
return SLAP_CB_CONTINUE;
}
static slap_overinst allop;
int
allop_init()
{
allop.on_bi.bi_type = "allop";
allop.on_bi.bi_flags = SLAPO_BFLAG_SINGLE;
allop.on_bi.bi_db_config = allop_db_config;
allop.on_bi.bi_db_destroy = allop_db_destroy;
allop.on_bi.bi_op_search = allop_op_search;
return overlay_register( &allop );
}
int
init_module( int argc, char *argv[] )
{
return allop_init();
}
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