xref: /freebsd/lib/libgssapi/gss_inquire_cred_by_mech.c (revision e67e85659c0de33e617e5fbf1028c6e8b49eee53)
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 #include "cred.h"
35 #include "name.h"
36 
37 OM_uint32
38 gss_inquire_cred_by_mech(OM_uint32 *minor_status,
39     const gss_cred_id_t cred_handle,
40     const gss_OID mech_type,
41     gss_name_t *cred_name,
42     OM_uint32 *initiator_lifetime,
43     OM_uint32 *acceptor_lifetime,
44     gss_cred_usage_t *cred_usage)
45 {
46 	OM_uint32 major_status;
47 	struct _gss_mech_switch *m;
48 	struct _gss_mechanism_cred *mcp;
49 	gss_cred_id_t mc;
50 	gss_name_t mn;
51 	struct _gss_name *name;
52 
53 	*minor_status = 0;
54 	if (cred_name)
55 		*cred_name = GSS_C_NO_NAME;
56 	if (initiator_lifetime)
57 		*initiator_lifetime = 0;
58 	if (acceptor_lifetime)
59 		*acceptor_lifetime = 0;
60 	if (cred_usage)
61 		*cred_usage = 0;
62 
63 	m = _gss_find_mech_switch(mech_type);
64 	if (!m)
65 		return (GSS_S_NO_CRED);
66 
67 	if (cred_handle != GSS_C_NO_CREDENTIAL) {
68 		struct _gss_cred *cred = (struct _gss_cred *) cred_handle;
69 		SLIST_FOREACH(mcp, &cred->gc_mc, gmc_link)
70 			if (mcp->gmc_mech == m)
71 				break;
72 		if (!mcp)
73 			return (GSS_S_NO_CRED);
74 		mc = mcp->gmc_cred;
75 	} else {
76 		mc = GSS_C_NO_CREDENTIAL;
77 	}
78 
79 	major_status = m->gm_inquire_cred_by_mech(minor_status, mc, mech_type,
80 	    &mn, initiator_lifetime, acceptor_lifetime, cred_usage);
81 	if (major_status != GSS_S_COMPLETE) {
82 		_gss_mg_error(m, major_status, *minor_status);
83 		return (major_status);
84 	}
85 
86 	if (cred_name) {
87 		name = _gss_make_name(m, mn);
88 		if (!name) {
89 			m->gm_release_name(minor_status, &mn);
90 			return (GSS_S_NO_CRED);
91 		}
92 		*cred_name = (gss_name_t) name;
93 	} else {
94 		m->gm_release_name(minor_status, &mn);
95 	}
96 
97 	return (GSS_S_COMPLETE);
98 }
99