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

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2005 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * Portions Copyright 2002 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 the 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 Dmitry Kovalev for inclusion
  19  * by OpenLDAP Software.  Additional significant contributors include
  20  * Pierangelo Masarati.
  21  */
  22
  23 #include "portable.h"
  24
  25 #include <stdio.h>
  26 #include <sys/types.h>
  27
  28 #include "slap.h"
  29 #include "proto-sql.h"
  30
  31 int
  32 backsql_compare( Operation *op, SlapReply *rs )
  33 {
  34         SQLHDBC                 dbh = SQL_NULL_HDBC;
  35         Entry                   e = { 0 };
  36         Attribute               *a = NULL;
  37         backsql_srch_info       bsi = { 0 };
  38         int                     rc;
  39         AttributeName           anlist[2],
  40                                 *anlistp = NULL;
  41
  42         Debug( LDAP_DEBUG_TRACE, "==>backsql_compare()\n", 0, 0, 0 );
  43
  44         rs->sr_err = backsql_get_db_conn( op, &dbh );
  45         if ( !dbh ) {
  46                 Debug( LDAP_DEBUG_TRACE, "backsql_compare(): "
  47                         "could not get connection handle - exiting\n",
  48                         0, 0, 0 );
  49
  50                 rs->sr_text = ( rs->sr_err == LDAP_OTHER )
  51                         ? "SQL-backend error" : NULL;
  52                 goto return_results;
  53         }
  54
  55         anlist[ 0 ].an_name = op->oq_compare.rs_ava->aa_desc->ad_cname;
  56         anlist[ 0 ].an_desc = op->oq_compare.rs_ava->aa_desc;
  57         BER_BVZERO( &anlist[ 1 ].an_name );
  58
  59         /*
  60          * Try to get attr as dynamic operational
  61          */
  62         if ( !is_at_operational( op->oq_compare.rs_ava->aa_desc->ad_type ) ) {
  63                 anlistp = anlist;
  64         }
  65
  66         /*
  67          * Get the entry
  68          */
  69         bsi.bsi_e = &e;
  70         rc = backsql_init_search( &bsi, &op->o_req_ndn,
  71                         LDAP_SCOPE_BASE,
  72                         SLAP_NO_LIMIT, SLAP_NO_LIMIT,
  73                         (time_t)(-1), NULL, dbh, op, rs, anlistp,
  74                         ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY ) );
  75         if ( rc != LDAP_SUCCESS ) {
  76                 Debug( LDAP_DEBUG_TRACE, "backsql_compare(): "
  77                         "could not retrieve compareDN ID - no such entry\n",
  78                         0, 0, 0 );
  79                 goto return_results;
  80         }
  81
  82         if ( get_assert( op ) &&
  83                         ( test_filter( op, &e, get_assertion( op ) )
  84                           != LDAP_COMPARE_TRUE ) )
  85         {
  86                 rs->sr_err = LDAP_ASSERTION_FAILED;
  87                 goto return_results;
  88         }
  89
  90         if ( is_at_operational( op->oq_compare.rs_ava->aa_desc->ad_type ) ) {
  91                 SlapReply       nrs = { 0 };
  92
  93                 e.e_attrs = NULL;
  94                 ber_dupbv( &e.e_name, &bsi.bsi_base_id.eid_dn );
  95                 ber_dupbv( &e.e_nname, &bsi.bsi_base_id.eid_ndn );
  96
  97                 nrs.sr_attrs = anlist;
  98                 nrs.sr_entry = &e;
  99                 nrs.sr_attr_flags = SLAP_OPATTRS_NO;
 100                 nrs.sr_operational_attrs = NULL;
 101
 102                 rs->sr_err = backsql_operational( op, &nrs );
 103                 if ( rs->sr_err != LDAP_SUCCESS ) {
 104                         goto return_results;
 105                 }
 106
 107                 e.e_attrs = nrs.sr_operational_attrs;
 108
 109         } else {
 110                 rc = backsql_id2entry( &bsi, &bsi.bsi_base_id );
 111                 if ( rc != LDAP_SUCCESS ) {
 112                         Debug( LDAP_DEBUG_TRACE, "backsql_compare(): "
 113                                 "error %d in backsql_id2entry() "
 114                                 "- compare failed\n", rc, 0, 0 );
 115                         rs->sr_err = rc;
 116                         goto return_results;
 117                 }
 118         }
 119
 120         if ( ! access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
 121                                 &op->oq_compare.rs_ava->aa_value,
 122                                 ACL_COMPARE, NULL ) )
 123         {
 124                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 125                 goto return_results;
 126         }
 127
 128         rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
 129         for ( a = attrs_find( e.e_attrs, op->oq_compare.rs_ava->aa_desc );
 130                         a != NULL;
 131                         a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc ) )
 132         {
 133                 rs->sr_err = LDAP_COMPARE_FALSE;
 134                 if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
 135                                         SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
 136                                         SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
 137                                         a->a_nvals,
 138                                         &op->oq_compare.rs_ava->aa_value,
 139                                         op->o_tmpmemctx ) == 0 )
 140                 {
 141                         rs->sr_err = LDAP_COMPARE_TRUE;
 142                         break;
 143                 }
 144         }
 145
 146 return_results:;
 147         switch ( rs->sr_err ) {
 148         case LDAP_COMPARE_TRUE:
 149         case LDAP_COMPARE_FALSE:
 150                 break;
 151
 152         default:
 153 #ifdef SLAP_ACL_HONOR_DISCLOSE
 154                 if ( !BER_BVISNULL( &e.e_nname ) &&
 155                                 ! access_allowed( op, &e,
 156                                         slap_schema.si_ad_entry, NULL,
 157                                         ACL_DISCLOSE, NULL ) )
 158                 {
 159                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 160                         rs->sr_text = NULL;
 161                 }
 162 #endif /* SLAP_ACL_HONOR_DISCLOSE */
 163                 break;
 164         }
 165
 166         send_ldap_result( op, rs );
 167
 168         if ( rs->sr_matched ) {
 169                 rs->sr_matched = NULL;
 170         }
 171
 172         if ( rs->sr_ref ) {
 173                 ber_bvarray_free( rs->sr_ref );
 174                 rs->sr_ref = NULL;
 175         }
 176
 177         if ( !BER_BVISNULL( &bsi.bsi_base_id.eid_ndn ) ) {
 178                 (void)backsql_free_entryID( op, &bsi.bsi_base_id, 0 );
 179         }
 180
 181         if ( !BER_BVISNULL( &e.e_nname ) ) {
 182                 entry_clean( &e );
 183         }
 184
 185         if ( bsi.bsi_attrs != NULL ) {
 186                 op->o_tmpfree( bsi.bsi_attrs, op->o_tmpmemctx );
 187         }
 188
 189         Debug(LDAP_DEBUG_TRACE,"<==backsql_compare()\n",0,0,0);
 190         switch ( rs->sr_err ) {
 191         case LDAP_COMPARE_TRUE:
 192         case LDAP_COMPARE_FALSE:
 193                 return LDAP_SUCCESS;
 194
 195         default:
 196                 return rs->sr_err;
 197         }
 198 }
 199