xref: /freebsd/crypto/heimdal/lib/gssapi/mech/gss_encapsulate_token.c (revision 6a068746777241722b2b32c5d0bc443a2a64d80b)
1*ae771770SStanislav Sedov /*
2*ae771770SStanislav Sedov  * Copyright (c) 2006 Kungliga Tekniska Högskolan
3*ae771770SStanislav Sedov  * (Royal Institute of Technology, Stockholm, Sweden).
4*ae771770SStanislav Sedov  * All rights reserved.
5*ae771770SStanislav Sedov  *
6*ae771770SStanislav Sedov  * Redistribution and use in source and binary forms, with or without
7*ae771770SStanislav Sedov  * modification, are permitted provided that the following conditions
8*ae771770SStanislav Sedov  * are met:
9*ae771770SStanislav Sedov  *
10*ae771770SStanislav Sedov  * 1. Redistributions of source code must retain the above copyright
11*ae771770SStanislav Sedov  *    notice, this list of conditions and the following disclaimer.
12*ae771770SStanislav Sedov  *
13*ae771770SStanislav Sedov  * 2. Redistributions in binary form must reproduce the above copyright
14*ae771770SStanislav Sedov  *    notice, this list of conditions and the following disclaimer in the
15*ae771770SStanislav Sedov  *    documentation and/or other materials provided with the distribution.
16*ae771770SStanislav Sedov  *
17*ae771770SStanislav Sedov  * 3. Neither the name of the Institute nor the names of its contributors
18*ae771770SStanislav Sedov  *    may be used to endorse or promote products derived from this software
19*ae771770SStanislav Sedov  *    without specific prior written permission.
20*ae771770SStanislav Sedov  *
21*ae771770SStanislav Sedov  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22*ae771770SStanislav Sedov  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23*ae771770SStanislav Sedov  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24*ae771770SStanislav Sedov  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25*ae771770SStanislav Sedov  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26*ae771770SStanislav Sedov  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27*ae771770SStanislav Sedov  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28*ae771770SStanislav Sedov  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29*ae771770SStanislav Sedov  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30*ae771770SStanislav Sedov  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31*ae771770SStanislav Sedov  * SUCH DAMAGE.
32*ae771770SStanislav Sedov  */
33*ae771770SStanislav Sedov 
34*ae771770SStanislav Sedov #include "mech_locl.h"
35*ae771770SStanislav Sedov 
36*ae771770SStanislav Sedov GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_encapsulate_token(gss_const_buffer_t input_token,gss_const_OID oid,gss_buffer_t output_token)37*ae771770SStanislav Sedov gss_encapsulate_token(gss_const_buffer_t input_token,
38*ae771770SStanislav Sedov 		      gss_const_OID oid,
39*ae771770SStanislav Sedov 		      gss_buffer_t output_token)
40*ae771770SStanislav Sedov {
41*ae771770SStanislav Sedov     GSSAPIContextToken ct;
42*ae771770SStanislav Sedov     int ret;
43*ae771770SStanislav Sedov     size_t size;
44*ae771770SStanislav Sedov 
45*ae771770SStanislav Sedov     ret = der_get_oid (oid->elements, oid->length, &ct.thisMech, &size);
46*ae771770SStanislav Sedov     if (ret) {
47*ae771770SStanislav Sedov 	_mg_buffer_zero(output_token);
48*ae771770SStanislav Sedov 	return GSS_S_FAILURE;
49*ae771770SStanislav Sedov     }
50*ae771770SStanislav Sedov 
51*ae771770SStanislav Sedov     ct.innerContextToken.data = input_token->value;
52*ae771770SStanislav Sedov     ct.innerContextToken.length = input_token->length;
53*ae771770SStanislav Sedov 
54*ae771770SStanislav Sedov     ASN1_MALLOC_ENCODE(GSSAPIContextToken,
55*ae771770SStanislav Sedov 		       output_token->value, output_token->length,
56*ae771770SStanislav Sedov 		       &ct, &size, ret);
57*ae771770SStanislav Sedov     der_free_oid(&ct.thisMech);
58*ae771770SStanislav Sedov     if (ret) {
59*ae771770SStanislav Sedov 	_mg_buffer_zero(output_token);
60*ae771770SStanislav Sedov 	return GSS_S_FAILURE;
61*ae771770SStanislav Sedov     }
62*ae771770SStanislav Sedov     if (output_token->length != size)
63*ae771770SStanislav Sedov 	abort();
64*ae771770SStanislav Sedov 
65*ae771770SStanislav Sedov     return GSS_S_COMPLETE;
66*ae771770SStanislav Sedov }
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