diff options
author | Alon Bar-Lev | 2012-02-29 22:11:59 +0200 |
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committer | David Sommerseth | 2012-03-22 22:07:08 +0100 |
commit | 34cb9132ef2dae08f91a66015ea5437539a4b557 (patch) | |
tree | edd69bb83cc490a47692cb847d066231cd6146fd /src/openvpn/session_id.h | |
parent | fcff80aac1f71ebf881fbc269fb3c4df0789de6b (diff) | |
download | openvpn-34cb9132ef2dae08f91a66015ea5437539a4b557.zip openvpn-34cb9132ef2dae08f91a66015ea5437539a4b557.tar.gz |
build: standard directory layout
Suitable for mature project.
root - administrative stuff
doc - documents
src - sources
tests - tests
distro - distro specific files
sample - samples
SIDE EFFECT: many changes to rpm spec.
Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Acked-by: Adriaan de Jong <dejong@fox-it.com>
Signed-off-by: David Sommerseth <davids@redhat.com>
Diffstat (limited to 'src/openvpn/session_id.h')
-rw-r--r-- | src/openvpn/session_id.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/openvpn/session_id.h b/src/openvpn/session_id.h new file mode 100644 index 0000000..10f30ed --- /dev/null +++ b/src/openvpn/session_id.h @@ -0,0 +1,86 @@ +/* + * OpenVPN -- An application to securely tunnel IP networks + * over a single UDP port, with support for SSL/TLS-based + * session authentication and key exchange, + * packet encryption, packet authentication, and + * packet compression. + * + * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program (see the file COPYING included with this + * distribution); if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* + * Each session is identified by a random 8-byte session identifier. + * + * For efficiency, the session id is only transmitted over the control + * channel (which only sees traffic occasionally when keys are being + * negotiated). + */ + +#if defined(USE_CRYPTO) && defined(USE_SSL) + +#ifndef SESSION_ID_H +#define SESSION_ID_H + +#include "basic.h" +#include "buffer.h" + +struct session_id +{ + uint8_t id[8]; +}; + +extern const struct session_id x_session_id_zero; + +#define SID_SIZE (sizeof (x_session_id_zero.id)) + +static inline bool +session_id_equal (const struct session_id *sid1, + const struct session_id *sid2) +{ + return !memcmp (sid1->id, sid2->id, SID_SIZE); +} + +static inline bool +session_id_defined (const struct session_id *sid1) +{ + return memcmp (sid1->id, &x_session_id_zero.id, SID_SIZE) != 0; +} + +static inline bool +session_id_read (struct session_id *sid, struct buffer *buf) +{ + return buf_read (buf, sid->id, SID_SIZE); +} + +static inline bool +session_id_write_prepend (const struct session_id *sid, struct buffer *buf) +{ + return buf_write_prepend (buf, sid->id, SID_SIZE); +} + +static inline bool +session_id_write (const struct session_id *sid, struct buffer *buf) +{ + return buf_write (buf, sid->id, SID_SIZE); +} + +void session_id_random (struct session_id *sid); + +const char *session_id_print (const struct session_id *sid, struct gc_arena *gc); + +#endif /* SESSION_ID_H */ +#endif /* USE_CRYPTO && USE_SSL */ |