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 2001-2009 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         AclCheck        ak;
  37
  38         ak.ak_state = NULL;
  39
  40         /* get entry with reader lock */
  41         monitor_cache_dn2entry( op, rs, &op->o_req_ndn, &e, &matched );
  42         if ( e == NULL ) {
  43                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
  44                 if ( matched ) {
  45                         ak.ak_e = matched;
  46                         ak.ak_desc = slap_schema.si_ad_entry;
  47                         ak.ak_val = NULL;
  48                         ak.ak_access = ACL_DISCLOSE;
  49                         if ( !access_allowed( op, &ak ))
  50                         {
  51                                 /* do nothing */ ;
  52                         } else {
  53                                 rs->sr_matched = matched->e_dn;
  54                         }
  55                 }
  56                 send_ldap_result( op, rs );
  57                 if ( matched ) {
  58                         monitor_cache_release( mi, matched );
  59                         rs->sr_matched = NULL;
  60                 }
  61
  62                 return rs->sr_err;
  63         }
  64
  65         ak.ak_e = e;
  66         ak.ak_desc = op->oq_compare.rs_ava->aa_desc;
  67         ak.ak_val = &op->oq_compare.rs_ava->aa_value;
  68         ak.ak_access = ACL_COMPARE;
  69         rs->sr_err = access_allowed( op, &ak );
  70         if ( !rs->sr_err ) {
  71                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
  72                 goto return_results;
  73         }
  74
  75         rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
  76
  77         for ( a = attrs_find( e->e_attrs, op->oq_compare.rs_ava->aa_desc );
  78                         a != NULL;
  79                         a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc )) {
  80                 rs->sr_err = LDAP_COMPARE_FALSE;
  81
  82                 if ( attr_valfind( a,
  83                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  84                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  85                         &op->oq_compare.rs_ava->aa_value, NULL,
  86                         op->o_tmpmemctx ) == 0 )
  87                 {
  88                         rs->sr_err = LDAP_COMPARE_TRUE;
  89                         break;
  90                 }
  91         }
  92
  93 return_results:;
  94         rc = rs->sr_err;
  95         switch ( rc ) {
  96         case LDAP_COMPARE_FALSE:
  97         case LDAP_COMPARE_TRUE:
  98                 rc = LDAP_SUCCESS;
  99                 break;
 100
 101         case LDAP_NO_SUCH_ATTRIBUTE:
 102                 break;
 103
 104         default:
 105                 ak.ak_desc = slap_schema.si_ad_entry;
 106                 ak.ak_val = NULL;
 107                 ak.ak_access = ACL_DISCLOSE;
 108                 if ( !access_allowed( op, &ak ))
 109                 {
 110                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 111                 }
 112                 break;
 113         }
 114
 115         send_ldap_result( op, rs );
 116         rs->sr_err = rc;
 117
 118         monitor_cache_release( mi, e );
 119
 120         return rs->sr_err;
 121 }
 122