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