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

   1 /* referral.c - BDB backend referral handler */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 2000-2002 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9 #include <stdio.h>
  10 #include <ac/string.h>
  11
  12 #include "back-bdb.h"
  13 #include "external.h"
  14
  15 int
  16 bdb_referrals(
  17         BackendDB       *be,
  18         Connection      *conn,
  19         Operation       *op,
  20         struct berval *dn,
  21         struct berval *ndn,
  22         const char **text )
  23 {
  24         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
  25         int rc = LDAP_SUCCESS;
  26         Entry *e = NULL, *matched;
  27
  28         if( op->o_tag == LDAP_REQ_SEARCH ) {
  29                 /* let search take care of itself */
  30                 return rc;
  31         }
  32
  33         if( get_manageDSAit( op ) ) {
  34                 /* let op take care of DSA management */
  35                 return rc;
  36         }
  37
  38         /* get entry */
  39         rc = bdb_dn2entry( be, NULL, ndn, &e, &matched, 0 );
  40
  41         switch(rc) {
  42         case DB_NOTFOUND:
  43                 rc = 0;
  44         case 0:
  45                 break;
  46         default:
  47                 Debug( LDAP_DEBUG_TRACE,
  48                         "bdb_referrals: dn2entry failed: %s (%d)\n",
  49                         db_strerror(rc), rc, 0 );
  50                 send_ldap_result( conn, op, rc=LDAP_OTHER,
  51                         NULL, "internal error", NULL, NULL );
  52                 return rc;
  53         }
  54
  55         if ( e == NULL ) {
  56                 char *matched_dn = NULL;
  57                 BVarray refs = NULL;
  58
  59                 if ( matched != NULL ) {
  60                         matched_dn = ch_strdup( matched->e_dn );
  61
  62                         Debug( LDAP_DEBUG_TRACE,
  63                                 "bdb_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
  64                                 (long) op->o_tag, dn->bv_val, matched_dn );
  65
  66                         if( is_entry_referral( matched ) ) {
  67                                 rc = LDAP_OTHER;
  68                                 refs = get_entry_referrals( be, conn, op, matched );
  69                         }
  70
  71                         bdb_entry_return( be, matched );
  72                         matched = NULL;
  73                 } else if ( default_referral != NULL ) {
  74                         rc = LDAP_OTHER;
  75                         refs = referral_rewrite( default_referral,
  76                                 NULL, dn, LDAP_SCOPE_DEFAULT );
  77                 }
  78
  79                 if( refs != NULL ) {
  80                         /* send referrals */
  81                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
  82                                 matched_dn, NULL, refs, NULL );
  83                         bvarray_free( refs );
  84                 } else if ( rc != LDAP_SUCCESS ) {
  85                         send_ldap_result( conn, op, rc, matched_dn,
  86                                 matched_dn ? "bad referral object" : NULL,
  87                                 NULL, NULL );
  88                 }
  89
  90                 free( matched_dn );
  91                 return rc;
  92         }
  93
  94         if ( is_entry_referral( e ) ) {
  95                 /* entry is a referral */
  96                 BVarray refs = get_entry_referrals( be, conn, op, e );
  97                 BVarray rrefs = referral_rewrite(
  98                         refs, &e->e_name, dn, LDAP_SCOPE_DEFAULT );
  99
 100                 Debug( LDAP_DEBUG_TRACE,
 101                         "bdb_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
 102                         (long) op->o_tag, dn->bv_val, e->e_dn );
 103
 104                 if( rrefs != NULL ) {
 105                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 106                                 e->e_dn, NULL, rrefs, NULL );
 107                         bvarray_free( rrefs );
 108                 } else {
 109                         send_ldap_result( conn, op, rc = LDAP_OTHER, e->e_dn,
 110                                 "bad referral object", NULL, NULL );
 111                 }
 112
 113                 bvarray_free( refs );
 114         }
 115
 116         bdb_entry_return( be, e );
 117         return rc;
 118 }