/* 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 2000-2006 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 <ac/string.h>
#include "back-bdb.h"
-#include "external.h"
int
-bdb_referrals(
- BackendDB *be,
- Connection *conn,
- Operation *op,
- struct berval *dn,
- struct berval *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 = NULL, *matched;
+
+ u_int32_t locker;
+ DB_LOCK lock;
if( op->o_tag == LDAP_REQ_SEARCH ) {
/* let search take care of itself */
return rc;
}
+ rc = LOCK_ID(bdb->bi_dbenv, &locker);
+ switch(rc) {
+ case 0:
+ break;
+ default:
+ return LDAP_OTHER;
+ }
+
+dn2entry_retry:
/* get entry */
- rc = bdb_dn2entry( be, NULL, ndn, &e, &matched, 0 );
+ rc = bdb_dn2entry( op, NULL, &op->o_req_ndn, &ei, 1, locker, &lock );
+
+ /* bdb_dn2entry() may legally leave ei == NULL
+ * if rc != 0 and rc != DB_NOTFOUND
+ */
+ if ( ei ) {
+ e = ei->bei_e;
+ }
switch(rc) {
case DB_NOTFOUND:
- rc = 0;
case 0:
break;
+ case LDAP_BUSY:
+ send_ldap_error( op, rs, LDAP_BUSY, "ldap server busy" );
+ LOCK_ID_FREE ( bdb->bi_dbenv, locker );
+ return LDAP_BUSY;
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto dn2entry_retry;
default:
Debug( LDAP_DEBUG_TRACE,
- "bdb_referrals: dn2entry failed: %s (%d)\n",
+ LDAP_XSTRING(bdb_referrals)
+ ": dn2entry failed: %s (%d)\n",
db_strerror(rc), rc, 0 );
- send_ldap_result( conn, op, rc=LDAP_OTHER,
- NULL, "internal error", NULL, NULL );
- return rc;
+ send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
+ LOCK_ID_FREE ( bdb->bi_dbenv, locker );
+ return rs->sr_err;
}
- if ( e == NULL ) {
- char *matched_dn = NULL;
- BVarray refs = NULL;
-
- if ( matched != NULL ) {
- matched_dn = ch_strdup( matched->e_dn );
-
+ if ( rc == DB_NOTFOUND ) {
+ rc = 0;
+ rs->sr_matched = NULL;
+ if ( e != NULL ) {
Debug( LDAP_DEBUG_TRACE,
- "bdb_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
- (long) op->o_tag, dn, matched_dn );
+ LDAP_XSTRING(bdb_referrals)
+ ": op=%ld target=\"%s\" matched=\"%s\"\n",
+ (long) op->o_tag, op->o_req_dn.bv_val, e->e_name.bv_val );
- if( is_entry_referral( matched ) ) {
+ if( is_entry_referral( e ) ) {
rc = LDAP_OTHER;
- refs = get_entry_referrals( be, conn, op, matched );
+ rs->sr_ref = get_entry_referrals( op, e );
+ if ( rs->sr_ref ) {
+ rs->sr_matched = ber_strdup_x(
+ e->e_name.bv_val, op->o_tmpmemctx );
+ }
}
- bdb_entry_return( be, matched );
- matched = NULL;
- } else if ( default_referral != NULL ) {
+ bdb_cache_return_entry_r (bdb->bi_dbenv, &bdb->bi_cache, e, &lock);
+ e = NULL;
+ } else if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) && default_referral != NULL ) {
rc = LDAP_OTHER;
- refs = referral_rewrite( default_referral,
- NULL, dn, LDAP_SCOPE_DEFAULT );
+ rs->sr_ref = referral_rewrite( default_referral,
+ NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
}
- if( refs != NULL ) {
+ if( rs->sr_ref != NULL ) {
/* send referrals */
- send_ldap_result( conn, op, rc = LDAP_REFERRAL,
- matched_dn, NULL, refs, NULL );
- bvarray_free( refs );
+ 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 ) {
- send_ldap_result( conn, op, rc, matched_dn,
- matched_dn ? "bad referral object" : NULL,
- NULL, NULL );
+ rs->sr_err = rc;
+ rs->sr_text = rs->sr_matched ? "bad referral object" : NULL;
+ send_ldap_result( op, rs );
}
- free( matched_dn );
+ LOCK_ID_FREE ( bdb->bi_dbenv, locker );
+ 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 */
- BVarray refs = get_entry_referrals( be, conn, op, e );
- BVarray rrefs = referral_rewrite(
- refs, &e->e_name, dn, LDAP_SCOPE_DEFAULT );
+ 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,
- "bdb_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
- (long) op->o_tag, dn->bv_val, e->e_dn );
-
- if( rrefs != NULL ) {
- send_ldap_result( conn, op, rc = LDAP_REFERRAL,
- e->e_dn, NULL, rrefs, NULL );
- bvarray_free( rrefs );
+ LDAP_XSTRING(bdb_referrals)
+ ": op=%ld target=\"%s\" matched=\"%s\"\n",
+ (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 {
- send_ldap_result( conn, op, rc = LDAP_OTHER, e->e_dn,
- "bad referral object", NULL, NULL );
+ send_ldap_error( op, rs, LDAP_OTHER, "bad referral object" );
+ rc = rs->sr_err;
}
- bvarray_free( refs );
+ rs->sr_matched = NULL;
+ ber_bvarray_free( refs );
}
- bdb_entry_return( be, e );
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache, e, &lock);
+ LOCK_ID_FREE ( bdb->bi_dbenv, locker );
return rc;
}
projects / openldap / blobdiff