100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
/*
|
|
* Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "gssapi_locl.h"
|
|
|
|
RCSID("$Id: encapsulate.c,v 1.5 2000/08/27 02:46:23 assar Exp $");
|
|
|
|
void
|
|
gssapi_krb5_encap_length (size_t data_len,
|
|
size_t *len,
|
|
size_t *total_len)
|
|
{
|
|
size_t len_len;
|
|
|
|
*len = 1 + 1 + GSS_KRB5_MECHANISM->length + 2 + data_len;
|
|
|
|
len_len = length_len(*len);
|
|
|
|
*total_len = 1 + len_len + *len;
|
|
}
|
|
|
|
u_char *
|
|
gssapi_krb5_make_header (u_char *p,
|
|
size_t len,
|
|
u_char *type)
|
|
{
|
|
int e;
|
|
size_t len_len, foo;
|
|
|
|
*p++ = 0x60;
|
|
len_len = length_len(len);
|
|
e = der_put_length (p + len_len - 1, len_len, len, &foo);
|
|
if(e || foo != len_len)
|
|
abort ();
|
|
p += len_len;
|
|
*p++ = 0x06;
|
|
*p++ = GSS_KRB5_MECHANISM->length;
|
|
memcpy (p, GSS_KRB5_MECHANISM->elements, GSS_KRB5_MECHANISM->length);
|
|
p += GSS_KRB5_MECHANISM->length;
|
|
memcpy (p, type, 2);
|
|
p += 2;
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Give it a krb5_data and it will encapsulate with extra GSS-API wrappings.
|
|
*/
|
|
|
|
OM_uint32
|
|
gssapi_krb5_encapsulate(
|
|
const krb5_data *in_data,
|
|
gss_buffer_t output_token,
|
|
u_char *type
|
|
)
|
|
{
|
|
size_t len, outer_len;
|
|
u_char *p;
|
|
|
|
gssapi_krb5_encap_length (in_data->length, &len, &outer_len);
|
|
|
|
output_token->length = outer_len;
|
|
output_token->value = malloc (outer_len);
|
|
if (output_token->value == NULL)
|
|
return GSS_S_FAILURE;
|
|
|
|
p = gssapi_krb5_make_header (output_token->value, len, type);
|
|
memcpy (p, in_data->data, in_data->length);
|
|
return GSS_S_COMPLETE;
|
|
}
|