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_r( 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 #ifdef NEW_LOGGING
  48                 LDAP_LOG (( "referral", LDAP_LEVEL_ERR,
  49                         "bdb_referrals: dn2entry failed: %s (%d)\n",
  50                         db_strerror(rc), rc ));
  51 #else
  52                 Debug( LDAP_DEBUG_TRACE,
  53                         "bdb_referrals: dn2entry failed: %s (%d)\n",
  54                         db_strerror(rc), rc, 0 );
  55 #endif
  56                 if (e != NULL) {
  57                         bdb_cache_return_entry_r(&bdb->bi_cache, e);
  58                 }
  59                 if (matched != NULL) {
  60                         bdb_cache_return_entry_r(&bdb->bi_cache, matched);
  61                 }
  62                 send_ldap_result( conn, op, rc=LDAP_OTHER,
  63                         NULL, "internal error", NULL, NULL );
  64                 return rc;
  65         }
  66
  67         if ( e == NULL ) {
  68                 char *matched_dn = NULL;
  69                 BerVarray refs = NULL;
  70
  71                 if ( matched != NULL ) {
  72                         matched_dn = ch_strdup( matched->e_dn );
  73
  74 #ifdef NEW_LOGGING
  75                 LDAP_LOG (( "referral", LDAP_LEVEL_DETAIL1,
  76                         "bdb_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
  77                         (long) op->o_tag, dn->bv_val, matched_dn ));
  78 #else
  79                         Debug( LDAP_DEBUG_TRACE,
  80                                 "bdb_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
  81                                 (long) op->o_tag, dn->bv_val, matched_dn );
  82 #endif
  83
  84                         if( is_entry_referral( matched ) ) {
  85                                 rc = LDAP_OTHER;
  86                                 refs = get_entry_referrals( be, conn, op, matched );
  87                         }
  88
  89                         bdb_cache_return_entry_r (&bdb->bi_cache, matched);
  90                         matched = NULL;
  91                 } else if ( default_referral != NULL ) {
  92                         rc = LDAP_OTHER;
  93                         refs = referral_rewrite( default_referral,
  94                                 NULL, dn, LDAP_SCOPE_DEFAULT );
  95                 }
  96
  97                 if( refs != NULL ) {
  98                         /* send referrals */
  99                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 100                                 matched_dn, NULL, refs, NULL );
 101                         ber_bvarray_free( refs );
 102                 } else if ( rc != LDAP_SUCCESS ) {
 103                         send_ldap_result( conn, op, rc, matched_dn,
 104                                 matched_dn ? "bad referral object" : NULL,
 105                                 NULL, NULL );
 106                 }
 107
 108                 free( matched_dn );
 109                 return rc;
 110         }
 111
 112         if ( is_entry_referral( e ) ) {
 113                 /* entry is a referral */
 114                 BerVarray refs = get_entry_referrals( be, conn, op, e );
 115                 BerVarray rrefs = referral_rewrite(
 116                         refs, &e->e_name, dn, LDAP_SCOPE_DEFAULT );
 117
 118 #ifdef NEW_LOGGING
 119                 LDAP_LOG (( "referral", LDAP_LEVEL_DETAIL1,
 120                         "bdb_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
 121                         (long) op->o_tag, dn->bv_val, e->e_dn ));
 122 #else
 123                 Debug( LDAP_DEBUG_TRACE,
 124                         "bdb_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
 125                         (long) op->o_tag, dn->bv_val, e->e_dn );
 126 #endif
 127
 128                 if( rrefs != NULL ) {
 129                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 130                                 e->e_dn, NULL, rrefs, NULL );
 131                         ber_bvarray_free( rrefs );
 132                 } else {
 133                         send_ldap_result( conn, op, rc = LDAP_OTHER, e->e_dn,
 134                                 "bad referral object", NULL, NULL );
 135                 }
 136
 137                 ber_bvarray_free( refs );
 138         }
 139
 140         bdb_cache_return_entry_r(&bdb->bi_cache, e);
 141         return rc;
 142 }