mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-27 03:20:22 +08:00
153 lines
3.3 KiB
C
153 lines
3.3 KiB
C
/* attribute.c - ldbm backend acl attribute routine */
|
|
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
*/
|
|
|
|
#include "portable.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <ac/socket.h>
|
|
#include <ac/string.h>
|
|
|
|
#include "slap.h"
|
|
#include "back-ldbm.h"
|
|
#include "proto-back-ldbm.h"
|
|
|
|
|
|
/* return LDAP_SUCCESS IFF we can retrieve the attributes
|
|
* of entry with e_ndn
|
|
*/
|
|
int
|
|
ldbm_back_attribute(
|
|
Backend *be,
|
|
Connection *conn,
|
|
Operation *op,
|
|
Entry *target,
|
|
const char *e_ndn,
|
|
AttributeDescription *entry_at,
|
|
struct berval ***vals
|
|
)
|
|
{
|
|
struct ldbminfo *li = (struct ldbminfo *) be->be_private;
|
|
Entry *e;
|
|
int i, j, rc;
|
|
Attribute *attr;
|
|
struct berval **v;
|
|
const char *entry_at_name = entry_at->ad_cname->bv_val;
|
|
|
|
Debug( LDAP_DEBUG_ARGS,
|
|
"=> ldbm_back_attribute: gr dn: \"%s\"\n",
|
|
e_ndn, 0, 0 );
|
|
Debug( LDAP_DEBUG_ARGS,
|
|
"=> ldbm_back_attribute: at: \"%s\"\n",
|
|
entry_at_name, 0, 0 );
|
|
|
|
Debug( LDAP_DEBUG_ARGS,
|
|
"=> ldbm_back_attribute: tr dn: \"%s\"\n",
|
|
target ? target->e_ndn : "", 0, 0 );
|
|
|
|
if (target != NULL && strcmp(target->e_ndn, e_ndn) == 0) {
|
|
/* we already have a LOCKED copy of the entry */
|
|
e = target;
|
|
Debug( LDAP_DEBUG_ARGS,
|
|
"=> ldbm_back_attribute: target is entry: \"%s\"\n",
|
|
e_ndn, 0, 0 );
|
|
|
|
} else {
|
|
/* can we find entry with reader lock */
|
|
if ((e = dn2entry_r(be, e_ndn, NULL )) == NULL) {
|
|
Debug( LDAP_DEBUG_ACL,
|
|
"=> ldbm_back_attribute: cannot find entry: \"%s\"\n",
|
|
e_ndn, 0, 0 );
|
|
return LDAP_NO_SUCH_OBJECT;
|
|
}
|
|
|
|
Debug( LDAP_DEBUG_ACL,
|
|
"=> ldbm_back_attribute: found entry: \"%s\"\n",
|
|
e_ndn, 0, 0 );
|
|
}
|
|
|
|
/* find attribute values */
|
|
|
|
if( is_entry_alias( e ) ) {
|
|
Debug( LDAP_DEBUG_ACL,
|
|
"<= ldbm_back_attribute: entry is an alias\n", 0, 0, 0 );
|
|
rc = LDAP_ALIAS_PROBLEM;
|
|
goto return_results;
|
|
}
|
|
|
|
if( is_entry_referral( e ) ) {
|
|
Debug( LDAP_DEBUG_ACL,
|
|
"<= ldbm_back_attribute: entry is an referral\n", 0, 0, 0 );
|
|
rc = LDAP_REFERRAL;
|
|
goto return_results;
|
|
}
|
|
|
|
if (conn != NULL && op != NULL
|
|
&& access_allowed(be, conn, op, e, slap_schema.si_ad_entry,
|
|
NULL, ACL_READ) == 0)
|
|
{
|
|
rc = LDAP_INSUFFICIENT_ACCESS;
|
|
goto return_results;
|
|
}
|
|
|
|
if ((attr = attr_find(e->e_attrs, entry_at)) == NULL) {
|
|
Debug( LDAP_DEBUG_ACL,
|
|
"<= ldbm_back_attribute: failed to find %s\n",
|
|
entry_at_name, 0, 0 );
|
|
rc = LDAP_NO_SUCH_ATTRIBUTE;
|
|
goto return_results;
|
|
}
|
|
|
|
if (conn != NULL && op != NULL
|
|
&& access_allowed(be, conn, op, e, entry_at, NULL, ACL_READ) == 0)
|
|
{
|
|
rc = LDAP_INSUFFICIENT_ACCESS;
|
|
goto return_results;
|
|
}
|
|
|
|
for ( i = 0; attr->a_vals[i] != NULL; i++ ) {
|
|
/* count them */
|
|
}
|
|
|
|
v = (struct berval **) ch_malloc( sizeof(struct berval *) * (i+1) );
|
|
|
|
for ( i=0, j=0; attr->a_vals[i] != NULL; i++ ) {
|
|
if( conn != NULL
|
|
&& op != NULL
|
|
&& access_allowed(be, conn, op, e, entry_at,
|
|
attr->a_vals[i], ACL_READ) == 0)
|
|
{
|
|
continue;
|
|
}
|
|
v[j] = ber_bvdup( attr->a_vals[i] );
|
|
|
|
if( v[j] != NULL ) j++;
|
|
}
|
|
|
|
if( j == 0 ) {
|
|
ch_free( v );
|
|
*vals = NULL;
|
|
rc = LDAP_INSUFFICIENT_ACCESS;
|
|
} else {
|
|
v[j] = NULL;
|
|
*vals = v;
|
|
rc = LDAP_SUCCESS;
|
|
}
|
|
|
|
return_results:
|
|
if( target != e ) {
|
|
/* free entry and reader lock */
|
|
cache_return_entry_r( &li->li_cache, e );
|
|
}
|
|
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
"ldbm_back_attribute: rc=%d nvals=%d\n",
|
|
rc, j, 0 );
|
|
return(rc);
|
|
}
|
|
|