git.sur5r.net Git - openldap/blob - servers/slapd/back-monitor/compare.c

   1 /* compare.c - monitor backend compare routine */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2001-2005 The OpenLDAP Foundation.
   6  * Portions Copyright 2001-2003 Pierangelo Masarati.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by Pierangelo Masarati for inclusion
  19  * in OpenLDAP Software.
  20  */
  21
  22 #include "portable.h"
  23
  24 #include <stdio.h>
  25
  26 #include <slap.h>
  27 #include "back-monitor.h"
  28
  29 int
  30 monitor_back_compare( struct slap_op *op, struct slap_rep *rs)
  31 {
  32         monitor_info_t  *mi = ( monitor_info_t * ) op->o_bd->be_private;
  33         Entry           *e, *matched = NULL;
  34         Attribute       *a;
  35
  36         /* get entry with reader lock */
  37         monitor_cache_dn2entry( op, &op->o_req_ndn, &e, &matched );
  38         if ( e == NULL ) {
  39                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
  40                 if ( matched ) {
  41                         rs->sr_matched = matched->e_dn;
  42                 }
  43                 send_ldap_result( op, rs );
  44                 if ( matched ) {
  45                         monitor_cache_release( mi, matched );
  46                         rs->sr_matched = NULL;
  47                 }
  48
  49                 return( 0 );
  50         }
  51
  52         rs->sr_err = access_allowed( op, e, op->oq_compare.rs_ava->aa_desc,
  53                         &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
  54         if ( !rs->sr_err ) {
  55                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
  56                 goto return_results;
  57         }
  58
  59         rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
  60
  61         for ( a = attrs_find( e->e_attrs, op->oq_compare.rs_ava->aa_desc );
  62                         a != NULL;
  63                         a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc )) {
  64                 rs->sr_err = LDAP_COMPARE_FALSE;
  65
  66                 if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
  67                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  68                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  69                         a->a_nvals, &op->oq_compare.rs_ava->aa_value,
  70                         op->o_tmpmemctx ) == 0 )
  71                 {
  72                         rs->sr_err = LDAP_COMPARE_TRUE;
  73                         break;
  74                 }
  75         }
  76
  77 return_results:;
  78         send_ldap_result( op, rs );
  79         if ( rs->sr_err == LDAP_COMPARE_FALSE
  80                         || rs->sr_err == LDAP_COMPARE_TRUE ) {
  81                 rs->sr_err = LDAP_SUCCESS;
  82         }
  83
  84         monitor_cache_release( mi, e );
  85
  86         return( rs->sr_err );
  87 }
  88