external/bsd/openldap/dist/servers/slapd/back-monitor/compare.c

   1 /* compare.c - monitor backend compare routine */
   2 /* $OpenLDAP: pkg/ldap/servers/slapd/back-monitor/compare.c,v 1.24.2.5 2008/02/11 23:26:47 kurt Exp $ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2001-2008 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( Operation *op, SlapReply *rs )
  31 {
  32         monitor_info_t  *mi = ( monitor_info_t * ) op->o_bd->be_private;
  33         Entry           *e, *matched = NULL;
  34         Attribute       *a;
  35         int             rc;
  36
  37         /* get entry with reader lock */
  38         monitor_cache_dn2entry( op, rs, &op->o_req_ndn, &e, &matched );
  39         if ( e == NULL ) {
  40                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
  41                 if ( matched ) {
  42                         if ( !access_allowed_mask( op, matched,
  43                                         slap_schema.si_ad_entry,
  44                                         NULL, ACL_DISCLOSE, NULL, NULL ) )
  45                         {
  46                                 /* do nothing */ ;
  47                         } else {
  48                                 rs->sr_matched = matched->e_dn;
  49                         }
  50                 }
  51                 send_ldap_result( op, rs );
  52                 if ( matched ) {
  53                         monitor_cache_release( mi, matched );
  54                         rs->sr_matched = NULL;
  55                 }
  56
  57                 return rs->sr_err;
  58         }
  59
  60         rs->sr_err = access_allowed( op, e, op->oq_compare.rs_ava->aa_desc,
  61                         &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
  62         if ( !rs->sr_err ) {
  63                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
  64                 goto return_results;
  65         }
  66
  67         rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
  68
  69         for ( a = attrs_find( e->e_attrs, op->oq_compare.rs_ava->aa_desc );
  70                         a != NULL;
  71                         a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc )) {
  72                 rs->sr_err = LDAP_COMPARE_FALSE;
  73
  74                 if ( attr_valfind( a,
  75                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  76                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  77                         &op->oq_compare.rs_ava->aa_value, NULL,
  78                         op->o_tmpmemctx ) == 0 )
  79                 {
  80                         rs->sr_err = LDAP_COMPARE_TRUE;
  81                         break;
  82                 }
  83         }
  84
  85 return_results:;
  86         rc = rs->sr_err;
  87         switch ( rc ) {
  88         case LDAP_COMPARE_FALSE:
  89         case LDAP_COMPARE_TRUE:
  90                 rc = LDAP_SUCCESS;
  91                 break;
  92
  93         case LDAP_NO_SUCH_ATTRIBUTE:
  94                 break;
  95
  96         default:
  97                 if ( !access_allowed_mask( op, e, slap_schema.si_ad_entry,
  98                                 NULL, ACL_DISCLOSE, NULL, NULL ) )
  99                 {
 100                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 101                 }
 102                 break;
 103         }
 104
 105         send_ldap_result( op, rs );
 106         rs->sr_err = rc;
 107
 108         monitor_cache_release( mi, e );
 109
 110         return rs->sr_err;
 111 }
 112