2 * OpenVPN -- An application to securely tunnel IP networks
3 * over a single UDP port, with support for SSL/TLS-based
4 * session authentication and key exchange,
5 * packet encryption, packet authentication, and
8 * Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2
12 * as published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program (see the file COPYING included with this
21 * distribution); if not, write to the Free Software Foundation, Inc.,
22 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 * Each session is identified by a random 8-byte session identifier.
28 * For efficiency, the session id is only transmitted over the control
29 * channel (which only sees traffic occasionally when keys are being
30 * negotiated). The data channel sees a smaller version of the session-id --
31 * it is called the key_id and is currently 2 bits long.
35 #include "config-win32.h"
40 #if defined(USE_CRYPTO) && defined(USE_SSL)
47 #include "session_id.h"
51 const struct session_id x_session_id_zero
;
54 session_id_random (struct session_id
*sid
)
56 prng_bytes (sid
->id
, SID_SIZE
);
60 session_id_print (const struct session_id
*sid
, struct gc_arena
*gc
)
62 return format_hex (sid
->id
, SID_SIZE
, 0, gc
);
66 static void dummy(void) {}
67 #endif /* USE_CRYPTO && USE_SSL*/