xref: /freebsd/lib/libgssapi/gss_compare_name.c (revision 9336e0699bda8a301cd2bfa37106b6ec5e32012e)
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 
31 #include "mech_switch.h"
32 #include "name.h"
33 
34 OM_uint32
35 gss_compare_name(OM_uint32 *minor_status,
36     const gss_name_t name1_arg,
37     const gss_name_t name2_arg,
38     int *name_equal)
39 {
40 	struct _gss_name *name1 = (struct _gss_name *) name1_arg;
41 	struct _gss_name *name2 = (struct _gss_name *) name2_arg;
42 
43 	/*
44 	 * First check the implementation-independant name if both
45 	 * names have one. Otherwise, try to find common mechanism
46 	 * names and compare them.
47 	 */
48 	if (name1->gn_value.value && name2->gn_value.value) {
49 		*name_equal = 1;
50 		if (!_gss_oid_equal(name1->gn_type, name2->gn_type)) {
51 			*name_equal = 0;
52 		} else if (name1->gn_value.length != name2->gn_value.length ||
53 		    memcmp(name1->gn_value.value, name1->gn_value.value,
54 			name1->gn_value.length)) {
55 			*name_equal = 0;
56 		}
57 	} else {
58 		struct _gss_mechanism_name *mn1;
59 		struct _gss_mechanism_name *mn2;
60 
61 		SLIST_FOREACH(mn1, &name1->gn_mn, gmn_link) {
62 			mn2 = _gss_find_mn(name2, mn1->gmn_mech_oid);
63 			if (mn2) {
64 				return (mn1->gmn_mech->gm_compare_name(
65 						minor_status,
66 						mn1->gmn_name,
67 						mn2->gmn_name,
68 						name_equal));
69 			}
70 		}
71 		*name_equal = 0;
72 	}
73 
74 	*minor_status = 0;
75 	return (GSS_S_COMPLETE);
76 }
77