xref: /freebsd/lib/libgssapi/gss_canonicalize_name.c (revision b0d29bc47dba79f6f38e67eabadfb4b32ffd9390)
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 #include <stdlib.h>
33 #include <string.h>
34 #include <errno.h>
35 
36 #include "mech_switch.h"
37 #include "name.h"
38 
39 OM_uint32
40 gss_canonicalize_name(OM_uint32 *minor_status,
41     const gss_name_t input_name,
42     const gss_OID mech_type,
43     gss_name_t *output_name)
44 {
45 	OM_uint32 major_status;
46 	struct _gss_name *name = (struct _gss_name *) input_name;
47 	struct _gss_mechanism_name *mn;
48 	struct _gss_mech_switch *m = _gss_find_mech_switch(mech_type);
49 	gss_name_t new_canonical_name;
50 
51 	*minor_status = 0;
52 	*output_name = 0;
53 
54 	major_status = _gss_find_mn(minor_status, name, mech_type, &mn);
55 	if (major_status)
56 		return (major_status);
57 
58 	m = mn->gmn_mech;
59 	major_status = m->gm_canonicalize_name(minor_status,
60 	    mn->gmn_name, mech_type, &new_canonical_name);
61 	if (major_status) {
62 		_gss_mg_error(m, major_status, *minor_status);
63 		return (major_status);
64 	}
65 
66 	/*
67 	 * Now we make a new name and mark it as an MN.
68 	 */
69 	*minor_status = 0;
70 	name = malloc(sizeof(struct _gss_name));
71 	if (!name) {
72 		m->gm_release_name(minor_status, &new_canonical_name);
73 		*minor_status = ENOMEM;
74 		return (GSS_S_FAILURE);
75 	}
76 	memset(name, 0, sizeof(struct _gss_name));
77 
78 	mn = malloc(sizeof(struct _gss_mechanism_name));
79 	if (!mn) {
80 		m->gm_release_name(minor_status, &new_canonical_name);
81 		free(name);
82 		*minor_status = ENOMEM;
83 		return (GSS_S_FAILURE);
84 	}
85 
86 	SLIST_INIT(&name->gn_mn);
87 	mn->gmn_mech = m;
88 	mn->gmn_mech_oid = &m->gm_mech_oid;
89 	mn->gmn_name = new_canonical_name;
90 	SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
91 
92 	*output_name = (gss_name_t) name;
93 
94 	return (GSS_S_COMPLETE);
95 }
96