1 /*
2 * Copyright (c) 2011, PADL Software Pty Ltd.
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 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
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 * 3. Neither the name of PADL Software nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include "mglueP.h"
34
35 OM_uint32 KRB5_CALLCONV
gss_decapsulate_token(gss_const_buffer_t input_token,gss_const_OID token_oid,gss_buffer_t output_token)36 gss_decapsulate_token(gss_const_buffer_t input_token,
37 gss_const_OID token_oid,
38 gss_buffer_t output_token)
39 {
40 OM_uint32 minor;
41 unsigned int body_size = 0;
42 unsigned char *buf_in;
43
44 if (input_token == GSS_C_NO_BUFFER || token_oid == GSS_C_NO_OID)
45 return GSS_S_CALL_INACCESSIBLE_READ;
46
47 if (output_token == GSS_C_NO_BUFFER)
48 return GSS_S_CALL_INACCESSIBLE_WRITE;
49
50 buf_in = input_token->value;
51
52 minor = g_verify_token_header(token_oid, &body_size, &buf_in,
53 -1, input_token->length,
54 G_VFY_TOKEN_HDR_WRAPPER_REQUIRED);
55 if (minor != 0)
56 return GSS_S_DEFECTIVE_TOKEN;
57
58 output_token->value = gssalloc_malloc(body_size);
59 if (output_token->value == NULL)
60 return GSS_S_FAILURE;
61
62 memcpy(output_token->value, buf_in, body_size);
63 output_token->length = body_size;
64
65 return GSS_S_COMPLETE;
66 }
67