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
55GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
56gss_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