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https://git.openldap.org/openldap/openldap.git
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152 lines
3.5 KiB
C
152 lines
3.5 KiB
C
/* referral.c - MDB backend referral handler */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2000-2017 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include "back-mdb.h"
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int
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mdb_referrals( Operation *op, SlapReply *rs )
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{
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struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
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Entry *e = NULL;
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int rc = LDAP_SUCCESS;
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MDB_txn *rtxn;
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mdb_op_info opinfo = {0}, *moi = &opinfo;
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if( op->o_tag == LDAP_REQ_SEARCH ) {
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/* let search take care of itself */
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return rc;
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}
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if( get_manageDSAit( op ) ) {
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/* let op take care of DSA management */
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return rc;
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}
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rc = mdb_opinfo_get(op, mdb, 1, &moi);
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switch(rc) {
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case 0:
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break;
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default:
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return LDAP_OTHER;
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}
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rtxn = moi->moi_txn;
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/* get entry */
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rc = mdb_dn2entry( op, rtxn, &op->o_req_ndn, &e, 1 );
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switch(rc) {
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case MDB_NOTFOUND:
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case 0:
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break;
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case LDAP_BUSY:
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rs->sr_text = "ldap server busy";
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goto done;
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default:
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Debug( LDAP_DEBUG_TRACE,
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LDAP_XSTRING(mdb_referrals)
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": dn2entry failed: %s (%d)\n",
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mdb_strerror(rc), rc, 0 );
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rs->sr_text = "internal error";
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rc = LDAP_OTHER;
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goto done;
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}
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if ( rc == MDB_NOTFOUND ) {
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rc = LDAP_SUCCESS;
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rs->sr_matched = NULL;
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if ( e != NULL ) {
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Debug( LDAP_DEBUG_TRACE,
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LDAP_XSTRING(mdb_referrals)
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": tag=%lu target=\"%s\" matched=\"%s\"\n",
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(unsigned long)op->o_tag, op->o_req_dn.bv_val, e->e_name.bv_val );
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if( is_entry_referral( e ) ) {
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BerVarray ref = get_entry_referrals( op, e );
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rc = LDAP_OTHER;
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rs->sr_ref = referral_rewrite( ref, &e->e_name,
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&op->o_req_dn, LDAP_SCOPE_DEFAULT );
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ber_bvarray_free( ref );
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if ( rs->sr_ref ) {
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rs->sr_matched = ber_strdup_x(
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e->e_name.bv_val, op->o_tmpmemctx );
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}
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}
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mdb_entry_return( op, e );
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e = NULL;
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}
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if( rs->sr_ref != NULL ) {
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/* send referrals */
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rc = rs->sr_err = LDAP_REFERRAL;
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send_ldap_result( op, rs );
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ber_bvarray_free( rs->sr_ref );
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rs->sr_ref = NULL;
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} else if ( rc != LDAP_SUCCESS ) {
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rs->sr_text = rs->sr_matched ? "bad referral object" : NULL;
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}
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if (rs->sr_matched) {
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op->o_tmpfree( (char *)rs->sr_matched, op->o_tmpmemctx );
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rs->sr_matched = NULL;
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}
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goto done;
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}
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if ( is_entry_referral( e ) ) {
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/* entry is a referral */
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BerVarray refs = get_entry_referrals( op, e );
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rs->sr_ref = referral_rewrite(
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refs, &e->e_name, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
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Debug( LDAP_DEBUG_TRACE,
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LDAP_XSTRING(mdb_referrals)
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": tag=%lu target=\"%s\" matched=\"%s\"\n",
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(unsigned long)op->o_tag, op->o_req_dn.bv_val, e->e_name.bv_val );
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rs->sr_matched = e->e_name.bv_val;
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if( rs->sr_ref != NULL ) {
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rc = rs->sr_err = LDAP_REFERRAL;
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send_ldap_result( op, rs );
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ber_bvarray_free( rs->sr_ref );
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rs->sr_ref = NULL;
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} else {
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rc = LDAP_OTHER;
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rs->sr_text = "bad referral object";
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}
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rs->sr_matched = NULL;
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ber_bvarray_free( refs );
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}
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done:
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if ( moi == &opinfo ) {
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mdb_txn_reset( moi->moi_txn );
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LDAP_SLIST_REMOVE( &op->o_extra, &moi->moi_oe, OpExtra, oe_next );
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} else {
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moi->moi_ref--;
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}
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if ( e )
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mdb_entry_return( op, e );
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return rc;
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}
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