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 2001-2008 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( 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         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 #ifdef SLAP_ACL_HONOR_DISCLOSE
  43                         if ( !access_allowed_mask( op, matched,
  44                                         slap_schema.si_ad_entry,
  45                                         NULL, ACL_DISCLOSE, NULL, NULL ) )
  46                         {
  47                                 /* do nothing */ ;
  48                         } else
  49 #endif /* SLAP_ACL_HONOR_DISCLOSE */
  50                         {
  51                                 rs->sr_matched = matched->e_dn;
  52                         }
  53                 }
  54                 send_ldap_result( op, rs );
  55                 if ( matched ) {
  56                         monitor_cache_release( mi, matched );
  57                         rs->sr_matched = NULL;
  58                 }
  59
  60                 return rs->sr_err;
  61         }
  62
  63         rs->sr_err = access_allowed( op, e, op->oq_compare.rs_ava->aa_desc,
  64                         &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
  65         if ( !rs->sr_err ) {
  66                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
  67                 goto return_results;
  68         }
  69
  70         rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
  71
  72         for ( a = attrs_find( e->e_attrs, op->oq_compare.rs_ava->aa_desc );
  73                         a != NULL;
  74                         a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc )) {
  75                 rs->sr_err = LDAP_COMPARE_FALSE;
  76
  77                 if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
  78                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
  79                                 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
  80                         a->a_nvals, &op->oq_compare.rs_ava->aa_value,
  81                         op->o_tmpmemctx ) == 0 )
  82                 {
  83                         rs->sr_err = LDAP_COMPARE_TRUE;
  84                         break;
  85                 }
  86         }
  87
  88 return_results:;
  89         rc = rs->sr_err;
  90         switch ( rc ) {
  91         case LDAP_COMPARE_FALSE:
  92         case LDAP_COMPARE_TRUE:
  93                 rc = LDAP_SUCCESS;
  94                 break;
  95
  96         case LDAP_NO_SUCH_ATTRIBUTE:
  97                 break;
  98
  99         default:
 100 #ifdef SLAP_ACL_HONOR_DISCLOSE
 101                 if ( !access_allowed_mask( op, e, slap_schema.si_ad_entry,
 102                                 NULL, ACL_DISCLOSE, NULL, NULL ) )
 103                 {
 104                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 105                 }
 106 #endif /* SLAP_ACL_HONOR_DISCLOSE */
 107                 break;
 108         }
 109
 110         send_ldap_result( op, rs );
 111         rs->sr_err = rc;
 112
 113         monitor_cache_release( mi, e );
 114
 115         return rs->sr_err;
 116 }
 117