-/* referral.c - LDBM backend referral handler */
+/* referral.c - BDB backend referral handler */
/* $OpenLDAP$ */
-/*
- * Copyright 2000 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2011 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
*/
#include "portable.h"
#include "back-bdb.h"
int
-bdb_referrals(
- BackendDB *be,
- Connection *conn,
- Operation *op,
- const char *dn,
- const char *ndn,
- const char **text )
+bdb_referrals( Operation *op, SlapReply *rs )
{
- struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ Entry *e = NULL;
+ EntryInfo *ei;
int rc = LDAP_SUCCESS;
- Entry *e, *matched;
+
+ DB_TXN *rtxn;
+ DB_LOCK lock;
if( op->o_tag == LDAP_REQ_SEARCH ) {
/* let search take care of itself */
return rc;
}
- /* fetch entry */
- rc = dn2entry_r( be, NULL, ndn, &e, &matched );
-
+ rc = bdb_reader_get(op, bdb->bi_dbenv, &rtxn);
switch(rc) {
- case DB_NOTFOUND:
case 0:
break;
default:
- send_ldap_result( conn, op, rc=LDAP_OTHER,
- NULL, "internal error", NULL, NULL );
- return rc;
+ return LDAP_OTHER;
}
- if ( e == NULL ) {
- char *matched_dn = NULL;
- struct berval **refs = default_referral;
-
- if ( matched != NULL ) {
- matched_dn = ch_strdup( matched->e_dn );
+dn2entry_retry:
+ /* get entry */
+ rc = bdb_dn2entry( op, rtxn, &op->o_req_ndn, &ei, 1, &lock );
- Debug( LDAP_DEBUG_TRACE,
- "ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
- op->o_tag, dn, matched_dn );
+ /* bdb_dn2entry() may legally leave ei == NULL
+ * if rc != 0 and rc != DB_NOTFOUND
+ */
+ if ( ei ) {
+ e = ei->bei_e;
+ }
- refs = is_entry_referral( matched )
- ? get_entry_referrals( be, conn, op, matched )
- : NULL;
+ switch(rc) {
+ case DB_NOTFOUND:
+ case 0:
+ break;
+ case LDAP_BUSY:
+ rs->sr_text = "ldap server busy";
+ return LDAP_BUSY;
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto dn2entry_retry;
+ default:
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_referrals)
+ ": dn2entry failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ rs->sr_text = "internal error";
+ return LDAP_OTHER;
+ }
- bdb_entry_return( be, matched );
+ if ( rc == DB_NOTFOUND ) {
+ rc = LDAP_SUCCESS;
+ rs->sr_matched = NULL;
+ if ( e != NULL ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_referrals)
+ ": tag=%lu target=\"%s\" matched=\"%s\"\n",
+ (unsigned long)op->o_tag, op->o_req_dn.bv_val, e->e_name.bv_val );
+
+ if( is_entry_referral( e ) ) {
+ BerVarray ref = get_entry_referrals( op, e );
+ rc = LDAP_OTHER;
+ rs->sr_ref = referral_rewrite( ref, &e->e_name,
+ &op->o_req_dn, LDAP_SCOPE_DEFAULT );
+ ber_bvarray_free( ref );
+ if ( rs->sr_ref ) {
+ rs->sr_matched = ber_strdup_x(
+ e->e_name.bv_val, op->o_tmpmemctx );
+ }
+ }
+
+ bdb_cache_return_entry_r (bdb, e, &lock);
+ e = NULL;
}
- if( refs != NULL ) {
+ if( rs->sr_ref != NULL ) {
/* send referrals */
- send_ldap_result( conn, op, rc = LDAP_REFERRAL,
- matched_dn, NULL, refs, NULL );
+ rc = rs->sr_err = LDAP_REFERRAL;
+ send_ldap_result( op, rs );
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ } else if ( rc != LDAP_SUCCESS ) {
+ rs->sr_text = rs->sr_matched ? "bad referral object" : NULL;
}
- if( matched != NULL ) {
- ber_bvecfree( refs );
- free( matched_dn );
+ if (rs->sr_matched) {
+ op->o_tmpfree( (char *)rs->sr_matched, op->o_tmpmemctx );
+ rs->sr_matched = NULL;
}
-
return rc;
}
if ( is_entry_referral( e ) ) {
/* entry is a referral */
- struct berval **refs = get_entry_referrals( be,
- conn, op, e );
+ BerVarray refs = get_entry_referrals( op, e );
+ rs->sr_ref = referral_rewrite(
+ refs, &e->e_name, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
Debug( LDAP_DEBUG_TRACE,
- "ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
- op->o_tag, dn, e->e_dn );
-
- if( refs != NULL ) {
- send_ldap_result( conn, op, rc = LDAP_REFERRAL,
- e->e_dn, NULL, refs, NULL );
+ LDAP_XSTRING(bdb_referrals)
+ ": tag=%lu target=\"%s\" matched=\"%s\"\n",
+ (unsigned long)op->o_tag, op->o_req_dn.bv_val, e->e_name.bv_val );
+
+ rs->sr_matched = e->e_name.bv_val;
+ if( rs->sr_ref != NULL ) {
+ rc = rs->sr_err = LDAP_REFERRAL;
+ send_ldap_result( op, rs );
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ } else {
+ rc = LDAP_OTHER;
+ rs->sr_text = "bad referral object";
}
- ber_bvecfree( refs );
+ rs->sr_matched = NULL;
+ ber_bvarray_free( refs );
}
- bdb_entry_return( be, e );
+ bdb_cache_return_entry_r(bdb, e, &lock);
return rc;
}
projects / openldap / blobdiff