1/*-
2 * Copyright (c) 2008 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
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/kobj.h>
33#include <sys/lock.h>
34#include <sys/malloc.h>
35#include <sys/mutex.h>
36
37#include <rpc/rpc.h>
38#include <rpc/rpcsec_gss.h>
39
40#include "rpcsec_gss_int.h"
41
42bool_t
43rpc_gss_mech_to_oid(const char *mech, gss_OID *oid_ret)
44{
45	gss_OID oid = kgss_find_mech_by_name(mech);
46
47	if (oid) {
48		*oid_ret = oid;
49		return (TRUE);
50	}
51	_rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
52	return (FALSE);
53}
54
55bool_t
56rpc_gss_oid_to_mech(gss_OID oid, const char **mech_ret)
57{
58	const char *name = kgss_find_mech_by_oid(oid);
59
60	if (name) {
61		*mech_ret = name;
62		return (TRUE);
63	}
64	_rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
65	return (FALSE);
66}
67
68bool_t
69rpc_gss_qop_to_num(const char *qop, const char *mech, u_int *num_ret)
70{
71
72	if (!strcmp(qop, "default")) {
73		*num_ret = GSS_C_QOP_DEFAULT;
74		return (TRUE);
75	}
76	_rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
77	return (FALSE);
78}
79
80const char *
81_rpc_gss_num_to_qop(const char *mech, u_int num)
82{
83
84	if (num == GSS_C_QOP_DEFAULT)
85		return "default";
86
87	return (NULL);
88}
89
90const char **
91rpc_gss_get_mechanisms(void)
92{
93	static const char **mech_names = NULL;
94	struct kgss_mech *km;
95	int count;
96
97	if (mech_names)
98		return (mech_names);
99
100	count = 0;
101	LIST_FOREACH(km, &kgss_mechs, km_link) {
102		count++;
103	}
104	count++;
105
106	mech_names = malloc(count * sizeof(const char *), M_RPC, M_WAITOK);
107	count = 0;
108	LIST_FOREACH(km, &kgss_mechs, km_link) {
109		mech_names[count++] = km->km_mech_name;
110	}
111	mech_names[count++] = NULL;
112
113	return (mech_names);
114}
115
116#if 0
117const char **
118rpc_gss_get_mech_info(const char *mech, rpc_gss_service_t *service)
119{
120	struct mech_info *info;
121
122	_rpc_gss_load_mech();
123	_rpc_gss_load_qop();
124	SLIST_FOREACH(info, &mechs, link) {
125		if (!strcmp(mech, info->name)) {
126			/*
127			 * I'm not sure what to do with service
128			 * here. The Solaris manpages are not clear on
129			 * the subject and the OpenSolaris code just
130			 * sets it to rpc_gss_svc_privacy
131			 * unconditionally with a comment noting that
132			 * it is bogus.
133			 */
134			*service = rpc_gss_svc_privacy;
135			return info->qops;
136		}
137	}
138
139	_rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
140	return (NULL);
141}
142#endif
143
144bool_t
145rpc_gss_get_versions(u_int *vers_hi, u_int *vers_lo)
146{
147
148	*vers_hi = 1;
149	*vers_lo = 1;
150	return (TRUE);
151}
152
153bool_t
154rpc_gss_is_installed(const char *mech)
155{
156	gss_OID oid = kgss_find_mech_by_name(mech);
157
158	if (oid)
159		return (TRUE);
160	else
161		return (FALSE);
162}
163
164