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 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     Backend     *be,
  21     Connection  *conn,
  22     Operation   *op,
  23     const char *dn,
  24     const char *ndn,
  25         const char **text )
  26 {
  27         struct ldbminfo *li = (struct ldbminfo *) be->be_private;
  28         int rc = LDAP_SUCCESS;
  29         Entry *e, *matched;
  30
  31         if( op->o_tag == LDAP_REQ_SEARCH ) {
  32                 /* let search take care of itself */
  33                 return rc;
  34         }
  35
  36         if( get_manageDSAit( op ) ) {
  37                 /* let op take care of DSA management */
  38                 return rc;
  39         }
  40
  41         /* get entry with reader lock */
  42         e = dn2entry_r( be, ndn, &matched );
  43         if ( e == NULL ) {
  44                 char *matched_dn = NULL;
  45                 struct berval **refs = NULL;
  46
  47                 if ( matched != NULL ) {
  48                         matched_dn = ch_strdup( matched->e_dn );
  49
  50 #ifdef NEW_LOGGING
  51                         LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
  52                                 "ldbm_back_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
  53                                 op->o_tag, dn, matched_dn ));
  54 #else
  55                         Debug( LDAP_DEBUG_TRACE,
  56                                 "ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
  57                                 op->o_tag, dn, matched_dn );
  58 #endif
  59
  60                         if( is_entry_referral( matched ) ) {
  61                                 rc = LDAP_OTHER;
  62                                 refs = get_entry_referrals( be, conn, op, matched,
  63                                         dn, LDAP_SCOPE_DEFAULT );
  64                         }
  65
  66                         cache_return_entry_r( &li->li_cache, matched );
  67
  68                 } else if ( default_referral != NULL ) {
  69                         rc = LDAP_OTHER;
  70                         refs = referral_rewrite( default_referral,
  71                                 NULL, dn, LDAP_SCOPE_DEFAULT );
  72                 }
  73
  74                 if( refs != NULL ) {
  75                         /* send referrals */
  76                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
  77                                 matched_dn, NULL, refs, NULL );
  78                         ber_bvecfree( refs );
  79
  80                 } else if ( rc != LDAP_SUCCESS ) {
  81                         send_ldap_result( conn, op, rc, matched_dn,
  82                                 matched_dn ? "bad referral object" : "bad default referral",
  83                                 NULL, NULL );
  84                 }
  85
  86                 free( matched_dn );
  87                 return rc;
  88         }
  89
  90         if ( is_entry_referral( e ) ) {
  91                 /* entry is a referral */
  92                 struct berval **refs = get_entry_referrals( be,
  93                         conn, op, e, dn, LDAP_SCOPE_DEFAULT );
  94                 struct berval **rrefs = referral_rewrite(
  95                         refs, e->e_dn, dn, LDAP_SCOPE_DEFAULT );
  96
  97 #ifdef NEW_LOGGING
  98                 LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
  99                         "ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
 100                         op->o_tag, dn, e->e_dn ));
 101 #else
 102                 Debug( LDAP_DEBUG_TRACE,
 103                         "ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
 104                         op->o_tag, dn, e->e_dn );
 105 #endif
 106
 107                 if( rrefs != NULL ) {
 108                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 109                                 e->e_dn, NULL, rrefs, NULL );
 110
 111                         ber_bvecfree( rrefs );
 112
 113                 } else {
 114                         send_ldap_result( conn, op, rc = LDAP_OTHER, e->e_dn,
 115                                 "bad referral object", NULL, NULL );
 116                 }
 117
 118                 if( refs != NULL ) ber_bvecfree( refs );
 119         }
 120
 121         cache_return_entry_r( &li->li_cache, e );
 122         return rc;
 123 }