1 /* $NetBSD: gss_decapsulate_token.c,v 1.2 2017/01/28 21:31:46 christos Exp $ */
2
3 /*
4 * Copyright (c) 2006 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
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 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "mech_locl.h"
37
38 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_decapsulate_token(gss_const_buffer_t input_token,gss_const_OID oid,gss_buffer_t output_token)39 gss_decapsulate_token(gss_const_buffer_t input_token,
40 gss_const_OID oid,
41 gss_buffer_t output_token)
42 {
43 GSSAPIContextToken ct;
44 heim_oid o;
45 OM_uint32 status;
46 int ret;
47 size_t size;
48
49 _mg_buffer_zero(output_token);
50
51 ret = der_get_oid (oid->elements, oid->length, &o, &size);
52 if (ret)
53 return GSS_S_FAILURE;
54
55 ret = decode_GSSAPIContextToken(input_token->value, input_token->length,
56 &ct, NULL);
57 if (ret) {
58 der_free_oid(&o);
59 return GSS_S_FAILURE;
60 }
61
62 if (der_heim_oid_cmp(&ct.thisMech, &o) == 0) {
63 status = GSS_S_COMPLETE;
64 output_token->value = ct.innerContextToken.data;
65 output_token->length = ct.innerContextToken.length;
66 der_free_oid(&ct.thisMech);
67 } else {
68 free_GSSAPIContextToken(&ct);
69 status = GSS_S_FAILURE;
70 }
71 der_free_oid(&o);
72
73 return status;
74 }
75