xref: /freebsd/lib/libgssapi/gss_canonicalize_name.c (revision 1669d8afc64812c8d2d1d147ae1fd42ff441e1b1)
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 #include <stdlib.h>
31 #include <string.h>
32 #include <errno.h>
33 
34 #include "mech_switch.h"
35 #include "name.h"
36 
37 OM_uint32
38 gss_canonicalize_name(OM_uint32 *minor_status,
39     const gss_name_t input_name,
40     const gss_OID mech_type,
41     gss_name_t *output_name)
42 {
43 	OM_uint32 major_status;
44 	struct _gss_name *name = (struct _gss_name *) input_name;
45 	struct _gss_mechanism_name *mn;
46 	struct _gss_mech_switch *m = _gss_find_mech_switch(mech_type);
47 	gss_name_t new_canonical_name;
48 
49 	*minor_status = 0;
50 	*output_name = 0;
51 
52 	mn = _gss_find_mn(name, mech_type);
53 	if (!mn) {
54 		return (GSS_S_BAD_MECH);
55 	}
56 
57 	m = mn->gmn_mech;
58 	major_status = m->gm_canonicalize_name(minor_status,
59 	    mn->gmn_name, mech_type, &new_canonical_name);
60 	if (major_status)
61 		return (major_status);
62 
63 	/*
64 	 * Now we make a new name and mark it as an MN.
65 	 */
66 	*minor_status = 0;
67 	name = malloc(sizeof(struct _gss_name));
68 	if (!name) {
69 		m->gm_release_name(minor_status, &new_canonical_name);
70 		*minor_status = ENOMEM;
71 		return (GSS_S_FAILURE);
72 	}
73 	memset(name, 0, sizeof(struct _gss_name));
74 
75 	mn = malloc(sizeof(struct _gss_mechanism_name));
76 	if (!mn) {
77 		m->gm_release_name(minor_status, &new_canonical_name);
78 		free(name);
79 		*minor_status = ENOMEM;
80 		return (GSS_S_FAILURE);
81 	}
82 
83 	SLIST_INIT(&name->gn_mn);
84 	mn->gmn_mech = m;
85 	mn->gmn_mech_oid = &m->gm_mech_oid;
86 	mn->gmn_name = new_canonical_name;
87 	SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
88 
89 	*output_name = (gss_name_t) name;
90 
91 	return (GSS_S_COMPLETE);
92 }
93