crypto/external/bsd/heimdal/dist/lib/gssapi/mech/gss_encapsulate_token.c

   1 /*      $NetBSD: gss_encapsulate_token.c,v 1.1.1.2 2014/04/24 12:45:29 pettai 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
  39 gss_encapsulate_token(gss_const_buffer_t input_token,
  40                       gss_const_OID oid,
  41                       gss_buffer_t output_token)
  42 {
  43     GSSAPIContextToken ct;
  44     int ret;
  45     size_t size;
  46
  47     ret = der_get_oid (oid->elements, oid->length, &ct.thisMech, &size);
  48     if (ret) {
  49         _mg_buffer_zero(output_token);
  50         return GSS_S_FAILURE;
  51     }
  52
  53     ct.innerContextToken.data = input_token->value;
  54     ct.innerContextToken.length = input_token->length;
  55
  56     ASN1_MALLOC_ENCODE(GSSAPIContextToken,
  57                        output_token->value, output_token->length,
  58                        &ct, &size, ret);
  59     der_free_oid(&ct.thisMech);
  60     if (ret) {
  61         _mg_buffer_zero(output_token);
  62         return GSS_S_FAILURE;
  63     }
  64     if (output_token->length != size)
  65         abort();
  66
  67     return GSS_S_COMPLETE;
  68 }