xref: /freebsd/lib/libgssapi/gss_indicate_mechs.c (revision f39bffc62c1395bde25d152c7f68fdf7cbaab414)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2005 Doug Rabson
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  *	$FreeBSD$
29  */
30 
31 #include <gssapi/gssapi.h>
32 
33 #include "mech_switch.h"
34 
35 OM_uint32
36 gss_indicate_mechs(OM_uint32 *minor_status,
37     gss_OID_set *mech_set)
38 {
39 	struct _gss_mech_switch *m;
40 	OM_uint32 major_status;
41 	gss_OID_set set;
42 	size_t i;
43 
44 	_gss_load_mech();
45 
46 	major_status = gss_create_empty_oid_set(minor_status, mech_set);
47 	if (major_status)
48 		return (major_status);
49 
50 	SLIST_FOREACH(m, &_gss_mechs, gm_link) {
51 		if (m->gm_indicate_mechs) {
52 			major_status = m->gm_indicate_mechs(minor_status, &set);
53 			if (major_status)
54 				continue;
55 			if (set == GSS_C_NO_OID_SET) {
56 				major_status = gss_add_oid_set_member(
57 					minor_status,
58 					&m->gm_mech_oid, mech_set);
59 				continue;
60 			}
61 			for (i = 0; i < set->count; i++)
62 				major_status = gss_add_oid_set_member(minor_status,
63 				    &set->elements[i], mech_set);
64 			gss_release_oid_set(minor_status, &set);
65 		} else {
66 			major_status = gss_add_oid_set_member(
67 			    minor_status, &m->gm_mech_oid, mech_set);
68 		}
69 	}
70 
71 	*minor_status = 0;
72 	return (GSS_S_COMPLETE);
73 }
74