1/*-
2 * Copyright (c) 2005 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$FreeBSD: src/lib/libgssapi/gss_inquire_mechs_for_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
27 */
28
29#include "mech_locl.h"
30
31GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
32gss_inquire_mechs_for_name(OM_uint32 *minor_status,
33    const gss_name_t input_name,
34    gss_OID_set *mech_types)
35{
36	OM_uint32		major_status;
37	struct _gss_name	*name = (struct _gss_name *) input_name;
38	struct _gss_mech_switch	*m;
39	gss_OID_set		name_types;
40	int			present;
41
42	*minor_status = 0;
43
44	_gss_load_mech();
45
46	major_status = gss_create_empty_oid_set(minor_status, mech_types);
47	if (major_status)
48		return (major_status);
49
50	/*
51	 * We go through all the loaded mechanisms and see if this
52	 * name's type is supported by the mechanism. If it is, add
53	 * the mechanism to the set.
54	 */
55	HEIM_SLIST_FOREACH(m, &_gss_mechs, gm_link) {
56		major_status = gss_inquire_names_for_mech(minor_status,
57		    &m->gm_mech_oid, &name_types);
58		if (major_status) {
59			gss_release_oid_set(minor_status, mech_types);
60			return (major_status);
61		}
62		gss_test_oid_set_member(minor_status,
63		    &name->gn_type, name_types, &present);
64		gss_release_oid_set(minor_status, &name_types);
65		if (present) {
66			major_status = gss_add_oid_set_member(minor_status,
67			    &m->gm_mech_oid, mech_types);
68			if (major_status) {
69				gss_release_oid_set(minor_status, mech_types);
70				return (major_status);
71			}
72		}
73	}
74
75	return (GSS_S_COMPLETE);
76}
77