bind.c revision 1.1.1.4 
1/*	$NetBSD: bind.c,v 1.1.1.4 2014/05/28 09:58:49 tron Exp $	*/
2
3/* bind.c - DNS SRV backend bind function */
4/* $OpenLDAP$ */
5/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 2000-2014 The OpenLDAP Foundation.
8 * Portions Copyright 2000-2003 Kurt D. Zeilenga.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted only as authorized by the OpenLDAP
13 * Public License.
14 *
15 * A copy of this license is available in the file LICENSE in the
16 * top-level directory of the distribution or, alternatively, at
17 * <http://www.OpenLDAP.org/license.html>.
18 */
19/* ACKNOWLEDGEMENTS:
20 * This work was originally developed by Kurt D. Zeilenga for inclusion
21 * in OpenLDAP Software.
22 */
23
24
25#include "portable.h"
26
27#include <stdio.h>
28
29#include <ac/socket.h>
30#include <ac/string.h>
31
32#include "slap.h"
33#include "proto-dnssrv.h"
34
35int
36dnssrv_back_bind(
37	Operation	*op,
38	SlapReply	*rs )
39{
40	Debug( LDAP_DEBUG_TRACE, "DNSSRV: bind dn=\"%s\" (%d)\n",
41		BER_BVISNULL( &op->o_req_dn ) ? "" : op->o_req_dn.bv_val,
42		op->orb_method, 0 );
43
44	/* allow rootdn as a means to auth without the need to actually
45 	 * contact the proxied DSA */
46	switch ( be_rootdn_bind( op, NULL ) ) {
47	case LDAP_SUCCESS:
48		/* frontend will send result */
49		return rs->sr_err;
50
51	default:
52		/* treat failure and like any other bind, otherwise
53		 * it could reveal the DN of the rootdn */
54		break;
55	}
56
57	if ( !BER_BVISNULL( &op->orb_cred ) &&
58		!BER_BVISEMPTY( &op->orb_cred ) )
59	{
60		/* simple bind */
61		Statslog( LDAP_DEBUG_STATS,
62		   	"%s DNSSRV BIND dn=\"%s\" provided cleartext passwd\n",
63	   		op->o_log_prefix,
64			BER_BVISNULL( &op->o_req_dn ) ? "" : op->o_req_dn.bv_val , 0, 0, 0 );
65
66		send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
67			"you shouldn't send strangers your password" );
68
69	} else {
70		/* unauthenticated bind */
71		/* NOTE: we're not going to get here anyway:
72		 * unauthenticated bind is dealt with by the frontend */
73		Debug( LDAP_DEBUG_TRACE, "DNSSRV: BIND dn=\"%s\"\n",
74			BER_BVISNULL( &op->o_req_dn ) ? "" : op->o_req_dn.bv_val, 0, 0 );
75
76		send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
77			"anonymous bind expected" );
78	}
79
80	return 1;
81}
82