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_encapsulate_token(gss_const_buffer_t input_token,gss_const_OID token_oid,gss_buffer_t output_token)36 gss_encapsulate_token(gss_const_buffer_t input_token,
37 gss_const_OID token_oid,
38 gss_buffer_t output_token)
39 {
40 unsigned int tokenSize;
41 struct k5buf buf;
42
43 if (input_token == GSS_C_NO_BUFFER || token_oid == GSS_C_NO_OID)
44 return GSS_S_CALL_INACCESSIBLE_READ;
45
46 if (output_token == GSS_C_NO_BUFFER)
47 return GSS_S_CALL_INACCESSIBLE_WRITE;
48
49 tokenSize = g_token_size(token_oid, input_token->length);
50
51 assert(tokenSize > 2);
52 tokenSize -= 2; /* TOK_ID */
53
54 output_token->value = gssalloc_malloc(tokenSize);
55 if (output_token->value == NULL)
56 return GSS_S_FAILURE;
57
58 k5_buf_init_fixed(&buf, output_token->value, tokenSize);
59 g_make_token_header(&buf, token_oid, input_token->length, -1);
60 k5_buf_add_len(&buf, input_token->value, input_token->length);
61 assert(buf.len == tokenSize);
62 output_token->length = tokenSize;
63
64 return GSS_S_COMPLETE;
65 }
66