xref: /freebsd/sys/kgssapi/gss_add_oid_set_member.c (revision d91f8db5f1822c43cd256f19aae1d059e4b25a26)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
5  * Authors: Doug Rabson <dfr@rabson.org>
6  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <sys/param.h>
34 #include <sys/kernel.h>
35 #include <sys/kobj.h>
36 #include <sys/malloc.h>
37 
38 #include <kgssapi/gssapi.h>
39 #include <kgssapi/gssapi_impl.h>
40 
41 OM_uint32
42 gss_add_oid_set_member(OM_uint32 *minor_status,
43     const gss_OID member_oid,
44     gss_OID_set *oid_set)
45 {
46 	OM_uint32 major_status;
47 	gss_OID_set set = *oid_set;
48 	gss_OID new_elements;
49 	gss_OID new_oid;
50 	int t;
51 
52 	*minor_status = 0;
53 
54 	major_status = gss_test_oid_set_member(minor_status,
55 	    member_oid, *oid_set, &t);
56 	if (major_status)
57 		return (major_status);
58 	if (t)
59 		return (GSS_S_COMPLETE);
60 
61 	new_elements = malloc((set->count + 1) * sizeof(gss_OID_desc),
62 	    M_GSSAPI, M_WAITOK);
63 
64 	new_oid = &new_elements[set->count];
65 	new_oid->elements = malloc(member_oid->length, M_GSSAPI, M_WAITOK);
66 	new_oid->length = member_oid->length;
67 	memcpy(new_oid->elements, member_oid->elements, member_oid->length);
68 
69 	if (set->elements) {
70 		memcpy(new_elements, set->elements,
71 		    set->count * sizeof(gss_OID_desc));
72 		free(set->elements, M_GSSAPI);
73 	}
74 	set->elements = new_elements;
75 	set->count++;
76 
77 	return (GSS_S_COMPLETE);
78 }
79