1 /* 2 * Copyright (c) 2006 Kungliga Tekniska Högskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include "mech_locl.h" 35 36 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL 37 gss_decapsulate_token(gss_const_buffer_t input_token, 38 gss_const_OID oid, 39 gss_buffer_t output_token) 40 { 41 GSSAPIContextToken ct; 42 heim_oid o; 43 OM_uint32 status; 44 int ret; 45 size_t size; 46 47 _mg_buffer_zero(output_token); 48 49 ret = der_get_oid (oid->elements, oid->length, &o, &size); 50 if (ret) 51 return GSS_S_FAILURE; 52 53 ret = decode_GSSAPIContextToken(input_token->value, input_token->length, 54 &ct, NULL); 55 if (ret) { 56 der_free_oid(&o); 57 return GSS_S_FAILURE; 58 } 59 60 if (der_heim_oid_cmp(&ct.thisMech, &o) == 0) { 61 status = GSS_S_COMPLETE; 62 output_token->value = ct.innerContextToken.data; 63 output_token->length = ct.innerContextToken.length; 64 der_free_oid(&ct.thisMech); 65 } else { 66 free_GSSAPIContextToken(&ct); 67 status = GSS_S_FAILURE; 68 } 69 der_free_oid(&o); 70 71 return status; 72 } 73