1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2008 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
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/kobj.h>
32#include <sys/lock.h>
33#include <sys/malloc.h>
34#include <sys/mutex.h>
35
36#include <rpc/rpc.h>
37#include <rpc/rpcsec_gss.h>
38
39#include "rpcsec_gss_int.h"
40
41bool_t
42rpc_gss_mech_to_oid(const char *mech, gss_OID *oid_ret)
43{
44	gss_OID oid = kgss_find_mech_by_name(mech);
45
46	if (oid) {
47		*oid_ret = oid;
48		return (TRUE);
49	}
50	_rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
51	return (FALSE);
52}
53
54bool_t
55rpc_gss_oid_to_mech(gss_OID oid, const char **mech_ret)
56{
57	const char *name = kgss_find_mech_by_oid(oid);
58
59	if (name) {
60		*mech_ret = name;
61		return (TRUE);
62	}
63	_rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
64	return (FALSE);
65}
66
67bool_t
68rpc_gss_qop_to_num(const char *qop, const char *mech, u_int *num_ret)
69{
70
71	if (!strcmp(qop, "default")) {
72		*num_ret = GSS_C_QOP_DEFAULT;
73		return (TRUE);
74	}
75	_rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
76	return (FALSE);
77}
78
79const char *
80_rpc_gss_num_to_qop(const char *mech, u_int num)
81{
82
83	if (num == GSS_C_QOP_DEFAULT)
84		return "default";
85
86	return (NULL);
87}
88
89const char **
90rpc_gss_get_mechanisms(void)
91{
92	static const char **mech_names = NULL;
93	struct kgss_mech *km;
94	int count;
95
96	if (mech_names)
97		return (mech_names);
98
99	count = 0;
100	LIST_FOREACH(km, &kgss_mechs, km_link) {
101		count++;
102	}
103	count++;
104
105	mech_names = malloc(count * sizeof(const char *), M_RPC, M_WAITOK);
106	count = 0;
107	LIST_FOREACH(km, &kgss_mechs, km_link) {
108		mech_names[count++] = km->km_mech_name;
109	}
110	mech_names[count++] = NULL;
111
112	return (mech_names);
113}
114
115#if 0
116const char **
117rpc_gss_get_mech_info(const char *mech, rpc_gss_service_t *service)
118{
119	struct mech_info *info;
120
121	_rpc_gss_load_mech();
122	_rpc_gss_load_qop();
123	SLIST_FOREACH(info, &mechs, link) {
124		if (!strcmp(mech, info->name)) {
125			/*
126			 * I'm not sure what to do with service
127			 * here. The Solaris manpages are not clear on
128			 * the subject and the OpenSolaris code just
129			 * sets it to rpc_gss_svc_privacy
130			 * unconditionally with a comment noting that
131			 * it is bogus.
132			 */
133			*service = rpc_gss_svc_privacy;
134			return info->qops;
135		}
136	}
137
138	_rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
139	return (NULL);
140}
141#endif
142
143bool_t
144rpc_gss_get_versions(u_int *vers_hi, u_int *vers_lo)
145{
146
147	*vers_hi = 1;
148	*vers_lo = 1;
149	return (TRUE);
150}
151
152bool_t
153rpc_gss_is_installed(const char *mech)
154{
155	gss_OID oid = kgss_find_mech_by_name(mech);
156
157	if (oid)
158		return (TRUE);
159	else
160		return (FALSE);
161}
162
163