1 /* $NetBSD: mech_external.c,v 1.3 2011/02/11 23:44:43 christos Exp $ */
2
3 /* Copyright (c) 2010 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Mateusz Kocielski.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the NetBSD
20 * Foundation, Inc. and its contributors.
21 * 4. Neither the name of The NetBSD Foundation nor the names of its
22 * contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37 #include <sys/cdefs.h>
38 __RCSID("$NetBSD: mech_external.c,v 1.3 2011/02/11 23:44:43 christos Exp $");
39
40 #include <saslc.h>
41 #include <string.h>
42
43 #include "mech.h"
44 #include "saslc_private.h"
45
46 /* See RFC 2222 section 7.4. */
47
48 /* properties */
49 #define SASLC_EXTERNAL_AUTHZID SASLC_PROP_AUTHZID
50
51 /**
52 * @brief doing one step of the sasl authentication
53 * @param sess sasl session
54 * @param in input data
55 * @param inlen input data length
56 * @param out place to store output data
57 * @param outlen output data length
58 * @return MECH_OK - success,
59 * MECH_STEP - more steps are needed,
60 * MECH_ERROR - error
61 */
62 /*ARGSUSED*/
63 static int
saslc__mech_external_cont(saslc_sess_t * sess,const void * in,size_t inlen,void ** out,size_t * outlen)64 saslc__mech_external_cont(saslc_sess_t *sess, const void *in, size_t inlen,
65 void **out, size_t *outlen)
66 {
67
68 return saslc__mech_strdup(sess, (char **)out, outlen,
69 SASLC_EXTERNAL_AUTHZID,
70 "authzid is required for an authentication");
71 }
72
73 /* mechanism definition */
74 const saslc__mech_t saslc__mech_external = {
75 .name = "EXTERNAL",
76 .flags = FLAG_NONE,
77 .create = saslc__mech_generic_create,
78 .cont = saslc__mech_external_cont,
79 .encode = NULL,
80 .decode = NULL,
81 .destroy = saslc__mech_generic_destroy
82 };
83