xref: /freebsd/lib/libgssapi/gss_inquire_cred_by_mech.c (revision 0b3105a37d7adcadcb720112fed4dc4e8040be99)
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  *	$FreeBSD$
27  */
28 
29 #include <gssapi/gssapi.h>
30 
31 #include "mech_switch.h"
32 #include "cred.h"
33 #include "name.h"
34 
35 OM_uint32
36 gss_inquire_cred_by_mech(OM_uint32 *minor_status,
37     const gss_cred_id_t cred_handle,
38     const gss_OID mech_type,
39     gss_name_t *cred_name,
40     OM_uint32 *initiator_lifetime,
41     OM_uint32 *acceptor_lifetime,
42     gss_cred_usage_t *cred_usage)
43 {
44 	OM_uint32 major_status;
45 	struct _gss_mech_switch *m;
46 	struct _gss_mechanism_cred *mcp;
47 	gss_cred_id_t mc;
48 	gss_name_t mn;
49 	struct _gss_name *name;
50 
51 	*minor_status = 0;
52 	if (cred_name)
53 		*cred_name = GSS_C_NO_NAME;
54 	if (initiator_lifetime)
55 		*initiator_lifetime = 0;
56 	if (acceptor_lifetime)
57 		*acceptor_lifetime = 0;
58 	if (cred_usage)
59 		*cred_usage = 0;
60 
61 	m = _gss_find_mech_switch(mech_type);
62 	if (!m)
63 		return (GSS_S_NO_CRED);
64 
65 	if (cred_handle != GSS_C_NO_CREDENTIAL) {
66 		struct _gss_cred *cred = (struct _gss_cred *) cred_handle;
67 		SLIST_FOREACH(mcp, &cred->gc_mc, gmc_link)
68 			if (mcp->gmc_mech == m)
69 				break;
70 		if (!mcp)
71 			return (GSS_S_NO_CRED);
72 		mc = mcp->gmc_cred;
73 	} else {
74 		mc = GSS_C_NO_CREDENTIAL;
75 	}
76 
77 	major_status = m->gm_inquire_cred_by_mech(minor_status, mc, mech_type,
78 	    &mn, initiator_lifetime, acceptor_lifetime, cred_usage);
79 	if (major_status != GSS_S_COMPLETE) {
80 		_gss_mg_error(m, major_status, *minor_status);
81 		return (major_status);
82 	}
83 
84 	if (cred_name) {
85 		name = _gss_make_name(m, mn);
86 		if (!name) {
87 			m->gm_release_name(minor_status, &mn);
88 			return (GSS_S_NO_CRED);
89 		}
90 		*cred_name = (gss_name_t) name;
91 	} else {
92 		m->gm_release_name(minor_status, &mn);
93 	}
94 
95 	return (GSS_S_COMPLETE);
96 }
97