git.sur5r.net Git - openldap/blob - servers/slapd/back-ldbm/referral.c

   1 /* referral.c - LDBM backend referral handler */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 2000-2003 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11
  12 #include <ac/string.h>
  13 #include <ac/socket.h>
  14
  15 #include "slap.h"
  16 #include "back-ldbm.h"
  17
  18 int
  19 ldbm_back_referrals(
  20     Operation   *op,
  21     SlapReply   *rs )
  22 {
  23         struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private;
  24         Entry *e, *matched;
  25
  26         if( op->o_tag == LDAP_REQ_SEARCH ) {
  27                 /* let search take care of itself */
  28                 return LDAP_SUCCESS;
  29         }
  30
  31         if( get_manageDSAit( op ) ) {
  32                 /* let op take care of DSA management */
  33                 return LDAP_SUCCESS;
  34         }
  35
  36         /* grab giant lock for reading */
  37         ldap_pvt_thread_rdwr_rlock(&li->li_giant_rwlock);
  38
  39         /* get entry with reader lock */
  40         e = dn2entry_r( op->o_bd, &op->o_req_ndn, &matched );
  41         if ( e == NULL ) {
  42                 if ( matched != NULL ) {
  43                         rs->sr_matched = ch_strdup( matched->e_dn );
  44
  45 #ifdef NEW_LOGGING
  46                         LDAP_LOG( BACK_LDBM, DETAIL1,
  47                                 "ldbm_back_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
  48                                 op->o_tag, op->o_req_dn.bv_val, rs->sr_matched );
  49 #else
  50                         Debug( LDAP_DEBUG_TRACE,
  51                                 "ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
  52                                 op->o_tag, op->o_req_dn.bv_val, rs->sr_matched );
  53 #endif
  54
  55                         if( is_entry_referral( matched ) ) {
  56                                 rs->sr_err = LDAP_OTHER;
  57                                 rs->sr_ref = get_entry_referrals( op, matched );
  58                         }
  59
  60                         cache_return_entry_r( &li->li_cache, matched );
  61
  62                 } else if ( default_referral != NULL ) {
  63                         rs->sr_err = LDAP_OTHER;
  64                         rs->sr_ref = referral_rewrite( default_referral,
  65                                 NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
  66                 }
  67
  68                 ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
  69
  70                 if( rs->sr_ref != NULL ) {
  71                         /* send referrals */
  72                         rs->sr_err = LDAP_REFERRAL;
  73                         send_ldap_result( op, rs );
  74                         ber_bvarray_free( rs->sr_ref );
  75
  76                 } else if ( rs->sr_err != LDAP_SUCCESS ) {
  77                         rs->sr_text = rs->sr_matched ? "bad referral object" : "bad default referral";
  78                         send_ldap_result( op, rs );
  79                 }
  80
  81                 if ( rs->sr_matched ) free( (char *)rs->sr_matched );
  82                 return rs->sr_err;
  83         }
  84
  85         if ( is_entry_referral( e ) ) {
  86                 /* entry is a referral */
  87                 BerVarray refs = get_entry_referrals( op, e );
  88                 rs->sr_ref = referral_rewrite(
  89                         refs, &e->e_name, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
  90
  91 #ifdef NEW_LOGGING
  92                 LDAP_LOG( BACK_LDBM, DETAIL1,
  93                         "ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
  94                         op->o_tag, op->o_req_dn.bv_val, e->e_dn );
  95 #else
  96                 Debug( LDAP_DEBUG_TRACE,
  97                         "ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
  98                         op->o_tag, op->o_req_dn.bv_val, e->e_dn );
  99 #endif
 100
 101                 rs->sr_matched = e->e_name.bv_val;
 102                 if( rs->sr_ref != NULL ) {
 103                         rs->sr_err = LDAP_REFERRAL;
 104                         send_ldap_result( op, rs );
 105
 106                         ber_bvarray_free( rs->sr_ref );
 107
 108                 } else {
 109                         send_ldap_error( op, rs, LDAP_OTHER,
 110                                 "bad referral object" );
 111                 }
 112
 113                 if( refs != NULL ) ber_bvarray_free( refs );
 114         }
 115
 116         cache_return_entry_r( &li->li_cache, e );
 117         ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
 118
 119         return rs->sr_err;
 120 }