xref: /freebsd/lib/libgssapi/gss_compare_name.c (revision be092bcde96bdcfde9013d60e442cca023bfbd1b)
1  /*-
2   * SPDX-License-Identifier: BSD-2-Clause
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 <string.h>
33  
34  #include "mech_switch.h"
35  #include "name.h"
36  #include "utils.h"
37  
38  OM_uint32
39  gss_compare_name(OM_uint32 *minor_status,
40      const gss_name_t name1_arg,
41      const gss_name_t name2_arg,
42      int *name_equal)
43  {
44  	struct _gss_name *name1 = (struct _gss_name *) name1_arg;
45  	struct _gss_name *name2 = (struct _gss_name *) name2_arg;
46  
47  	/*
48  	 * First check the implementation-independent name if both
49  	 * names have one. Otherwise, try to find common mechanism
50  	 * names and compare them.
51  	 */
52  	if (name1->gn_value.value && name2->gn_value.value) {
53  		*name_equal = 1;
54  		if (!gss_oid_equal(&name1->gn_type, &name2->gn_type)) {
55  			*name_equal = 0;
56  		} else if (name1->gn_value.length != name2->gn_value.length ||
57  		    memcmp(name1->gn_value.value, name1->gn_value.value,
58  			name1->gn_value.length)) {
59  			*name_equal = 0;
60  		}
61  	} else {
62  		struct _gss_mechanism_name *mn1;
63  		struct _gss_mechanism_name *mn2;
64  
65  		SLIST_FOREACH(mn1, &name1->gn_mn, gmn_link) {
66  			OM_uint32 major_status;
67  
68  			major_status = _gss_find_mn(minor_status, name2,
69  						    mn1->gmn_mech_oid, &mn2);
70  			if (major_status == GSS_S_COMPLETE) {
71  				return (mn1->gmn_mech->gm_compare_name(
72  						minor_status,
73  						mn1->gmn_name,
74  						mn2->gmn_name,
75  						name_equal));
76  			}
77  		}
78  		*name_equal = 0;
79  	}
80  
81  	*minor_status = 0;
82  	return (GSS_S_COMPLETE);
83  }
84