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: src/lib/libgssapi/gss_canonicalize_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
27  */
28 
29 #include "mech_locl.h"
30 
31 /**
32  *  gss_canonicalize_name takes a Internal Name (IN) and converts in into a
33  *  mechanism specific Mechanism Name (MN).
34  *
35  *  The input name may multiple name, or generic name types.
36  *
37  *  If the input_name if of the GSS_C_NT_USER_NAME, and the Kerberos
38  *  mechanism is specified, the resulting MN type is a
39  *  GSS_KRB5_NT_PRINCIPAL_NAME.
40  *
41  *  For more information about @ref internalVSmechname.
42  *
43  *  @param minor_status minor status code.
44  *  @param input_name name to covert, unchanged by gss_canonicalize_name().
45  *  @param mech_type the type to convert Name too.
46  *  @param output_name the resulting type, release with
47  *         gss_release_name(), independent of input_name.
48  *
49  *  @returns a gss_error code, see gss_display_status() about printing
50  *         the error code.
51  *
52  *  @ingroup gssapi
53  */
54 
55 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
56 gss_canonicalize_name(OM_uint32 *minor_status,
57     const gss_name_t input_name,
58     const gss_OID mech_type,
59     gss_name_t *output_name)
60 {
61 	OM_uint32 major_status;
62 	struct _gss_name *name = (struct _gss_name *) input_name;
63 	struct _gss_mechanism_name *mn;
64 	gssapi_mech_interface m;
65 	gss_name_t new_canonical_name;
66 
67 	*minor_status = 0;
68 	*output_name = 0;
69 
70 	major_status = _gss_find_mn(minor_status, name, mech_type, &mn);
71 	if (major_status)
72 		return major_status;
73 
74 	m = mn->gmn_mech;
75 	major_status = m->gm_canonicalize_name(minor_status,
76 	    mn->gmn_name, mech_type, &new_canonical_name);
77 	if (major_status) {
78 		_gss_mg_error(m, major_status, *minor_status);
79 		return (major_status);
80 	}
81 
82 	/*
83 	 * Now we make a new name and mark it as an MN.
84 	 */
85 	*minor_status = 0;
86 	name = malloc(sizeof(struct _gss_name));
87 	if (!name) {
88 		m->gm_release_name(minor_status, &new_canonical_name);
89 		*minor_status = ENOMEM;
90 		return (GSS_S_FAILURE);
91 	}
92 	memset(name, 0, sizeof(struct _gss_name));
93 
94 	mn = malloc(sizeof(struct _gss_mechanism_name));
95 	if (!mn) {
96 		m->gm_release_name(minor_status, &new_canonical_name);
97 		free(name);
98 		*minor_status = ENOMEM;
99 		return (GSS_S_FAILURE);
100 	}
101 
102 	HEIM_SLIST_INIT(&name->gn_mn);
103 	mn->gmn_mech = m;
104 	mn->gmn_mech_oid = &m->gm_mech_oid;
105 	mn->gmn_name = new_canonical_name;
106 	HEIM_SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
107 
108 	*output_name = (gss_name_t) name;
109 
110 	return (GSS_S_COMPLETE);
111 }
112