2 * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
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.
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.
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
34 #include "gssapi_locl.h"
36 RCSID("$Id: encapsulate.c,v 1.8 2003/09/04 18:08:55 lha Exp $");
39 _gssapi_encap_length (size_t data_len
,
46 *len
= 1 + 1 + mech
->length
+ data_len
;
48 len_len
= length_len(*len
);
50 *total_len
= 1 + len_len
+ *len
;
54 gssapi_krb5_encap_length (size_t data_len
,
59 _gssapi_encap_length(data_len
+ 2, len
, total_len
, mech
);
63 gssapi_krb5_make_header (u_char
*p
,
68 p
= _gssapi_make_mech_header(p
, len
, mech
);
75 _gssapi_make_mech_header(u_char
*p
,
83 len_len
= length_len(len
);
84 e
= der_put_length (p
+ len_len
- 1, len_len
, len
, &foo
);
85 if(e
|| foo
!= len_len
)
90 memcpy (p
, mech
->elements
, mech
->length
);
96 * Give it a krb5_data and it will encapsulate with extra GSS-API wrappings.
101 OM_uint32
*minor_status
,
102 const krb5_data
*in_data
,
103 gss_buffer_t output_token
,
107 size_t len
, outer_len
;
110 _gssapi_encap_length (in_data
->length
, &len
, &outer_len
, mech
);
112 output_token
->length
= outer_len
;
113 output_token
->value
= malloc (outer_len
);
114 if (output_token
->value
== NULL
) {
115 *minor_status
= ENOMEM
;
116 return GSS_S_FAILURE
;
119 p
= _gssapi_make_mech_header (output_token
->value
, len
, mech
);
120 memcpy (p
, in_data
->data
, in_data
->length
);
121 return GSS_S_COMPLETE
;
125 * Give it a krb5_data and it will encapsulate with extra GSS-API krb5
130 gssapi_krb5_encapsulate(
131 OM_uint32
*minor_status
,
132 const krb5_data
*in_data
,
133 gss_buffer_t output_token
,
138 size_t len
, outer_len
;
141 gssapi_krb5_encap_length (in_data
->length
, &len
, &outer_len
, mech
);
143 output_token
->length
= outer_len
;
144 output_token
->value
= malloc (outer_len
);
145 if (output_token
->value
== NULL
) {
146 *minor_status
= ENOMEM
;
147 return GSS_S_FAILURE
;
150 p
= gssapi_krb5_make_header (output_token
->value
, len
, type
, mech
);
151 memcpy (p
, in_data
->data
, in_data
->length
);
152 return GSS_S_COMPLETE
;