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

   1 /* OpenLDAP WiredTiger backend */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2002-2018 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGEMENTS:
  17  * This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
  18  * based on back-bdb for inclusion in OpenLDAP Software.
  19  * WiredTiger is a product of MongoDB Inc.
  20  */
  21
  22 #include "portable.h"
  23
  24 #include <stdio.h>
  25 #include <ac/string.h>
  26
  27 #include "back-wt.h"
  28 #include "config.h"
  29
  30 int
  31 wt_compare( Operation *op, SlapReply *rs )
  32 {
  33     struct wt_info *wi = (struct wt_info *) op->o_bd->be_private;
  34         Entry *e = NULL;
  35         int manageDSAit = get_manageDSAit( op );
  36         int rc;
  37         wt_ctx *wc = NULL;
  38
  39         Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(wt_compare) ": %s\n",
  40                    op->o_req_dn.bv_val, 0, 0 );
  41
  42         wc = wt_ctx_get(op, wi);
  43         if( !wc ){
  44                 Debug( LDAP_DEBUG_ANY,
  45                            LDAP_XSTRING(wt_compare)
  46                            ": wt_ctx_get failed\n",
  47                            0, 0, 0 );
  48                 rs->sr_err = LDAP_OTHER;
  49                 rs->sr_text = "internal error";
  50         send_ldap_result( op, rs );
  51         return rs->sr_err;
  52         }
  53
  54         rs->sr_err = wt_dn2entry(op->o_bd, wc, &op->o_req_ndn, &e);
  55         switch( rs->sr_err ) {
  56         case 0:
  57         case WT_NOTFOUND:
  58                 break;
  59         default:
  60                 rs->sr_err = LDAP_OTHER;
  61                 rs->sr_text = "internal error";
  62                 goto return_results;
  63         }
  64
  65         if ( rs->sr_err == WT_NOTFOUND ) {
  66                 if ( e != NULL ) {
  67                         /* return referral only if "disclose" is granted on the object */
  68                         if ( ! access_allowed( op, e, slap_schema.si_ad_entry,
  69                                                                    NULL, ACL_DISCLOSE, NULL ) )
  70                         {
  71                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
  72                         } else {
  73                                 rs->sr_matched = ch_strdup( e->e_dn );
  74                                 if ( is_entry_referral( e )) {
  75                                         BerVarray ref = get_entry_referrals( op, e );
  76                                         rs->sr_ref = referral_rewrite( ref,
  77                                                                                                    &e->e_name,
  78                                                                                                    &op->o_req_dn,
  79                                                                                                    LDAP_SCOPE_DEFAULT );
  80                                         ber_bvarray_free( ref );
  81                                 } else {
  82                                         rs->sr_ref = NULL;
  83                                 }
  84                                 rs->sr_err = LDAP_REFERRAL;
  85                         }
  86                         wt_entry_return( e );
  87                         e = NULL;
  88                 } else {
  89                         rs->sr_ref = referral_rewrite( default_referral,
  90                                                                                    NULL,
  91                                                                                    &op->o_req_dn,
  92                                                                                    LDAP_SCOPE_DEFAULT );
  93                         rs->sr_err = rs->sr_ref ? LDAP_REFERRAL : LDAP_NO_SUCH_OBJECT;
  94                 }
  95
  96                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
  97                 send_ldap_result( op, rs );
  98                 goto done;
  99         }
 100
 101         if (!manageDSAit && is_entry_referral( e ) ) {
 102                 /* return referral only if "disclose" is granted on the object */
 103                 if ( !access_allowed( op, e, slap_schema.si_ad_entry,
 104                                                           NULL, ACL_DISCLOSE, NULL ) )
 105                 {
 106                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 107                 } else {
 108                         /* entry is a referral, don't allow compare */
 109                         rs->sr_ref = get_entry_referrals( op, e );
 110                         rs->sr_err = LDAP_REFERRAL;
 111                         rs->sr_matched = e->e_name.bv_val;
 112                 }
 113
 114                 Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0, 0, 0 );
 115
 116                 send_ldap_result( op, rs );
 117
 118                 ber_bvarray_free( rs->sr_ref );
 119                 rs->sr_ref = NULL;
 120                 rs->sr_matched = NULL;
 121                 goto done;
 122         }
 123
 124         rs->sr_err = slap_compare_entry( op, e, op->orc_ava );
 125
 126 return_results:
 127         send_ldap_result( op, rs );
 128
 129         switch ( rs->sr_err ) {
 130         case LDAP_COMPARE_FALSE:
 131         case LDAP_COMPARE_TRUE:
 132                 rs->sr_err = LDAP_SUCCESS;
 133                 break;
 134         }
 135
 136 done:
 137         if ( e != NULL ) {
 138                 wt_entry_return( e );
 139         }
 140     return rs->sr_err;
 141 }
 142
 143 /*
 144  * Local variables:
 145  * indent-tabs-mode: t
 146  * tab-width: 4
 147  * c-basic-offset: 4
 148  * End:
 149  */