Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / l2tp.h
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1/* @(#) $Header: /tcpdump/master/tcpdump/l2tp.h,v 1.5 2001/11/05 10:03:27 guy Exp $ (LBL) */
2/*
3 * Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997
4 * The Regents of the University of California. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that: (1) source code distributions
8 * retain the above copyright notice and this paragraph in its entirety, (2)
9 * distributions including binary code include the above copyright notice and
10 * this paragraph in its entirety in the documentation or other materials
11 * provided with the distribution, and (3) all advertising materials mentioning
12 * features or use of this software display the following acknowledgement:
13 * ``This product includes software developed by the University of California,
14 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
15 * the University nor the names of its contributors may be used to endorse
16 * or promote products derived from this software without specific prior
17 * written permission.
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
19 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21 *
22 * L2TP support contributed by Motonori Shindo (mshindo@mshindo.net)
23 */
24
25
26#define L2TP_FLAG_TYPE 0x8000 /* Type (0=Data, 1=Control) */
27#define L2TP_FLAG_LENGTH 0x4000 /* Length */
28#define L2TP_FLAG_SEQUENCE 0x0800 /* Sequence */
29#define L2TP_FLAG_OFFSET 0x0200 /* Offset */
30#define L2TP_FLAG_PRIORITY 0x0100 /* Priority */
31
32#define L2TP_VERSION_MASK 0x000f /* Version Mask */
33#define L2TP_VERSION_L2F 0x0001 /* L2F */
34#define L2TP_VERSION_L2TP 0x0002 /* L2TP */
35
36#define L2TP_AVP_HDR_FLAG_MANDATORY 0x8000 /* Mandatory Flag */
37#define L2TP_AVP_HDR_FLAG_HIDDEN 0x4000 /* Hidden Flag */
38#define L2TP_AVP_HDR_LEN_MASK 0x03ff /* Length Mask */
39
40#define L2TP_FRAMING_CAP_SYNC_MASK 0x00000001 /* Synchronous */
41#define L2TP_FRAMING_CAP_ASYNC_MASK 0x00000002 /* Asynchronous */
42
43#define L2TP_FRAMING_TYPE_SYNC_MASK 0x00000001 /* Synchronous */
44#define L2TP_FRAMING_TYPE_ASYNC_MASK 0x00000002 /* Asynchronous */
45
46#define L2TP_BEARER_CAP_DIGITAL_MASK 0x00000001 /* Digital */
47#define L2TP_BEARER_CAP_ANALOG_MASK 0x00000002 /* Analog */
48
49#define L2TP_BEARER_TYPE_DIGITAL_MASK 0x00000001 /* Digital */
50#define L2TP_BEARER_TYPE_ANALOG_MASK 0x00000002 /* Analog */
51
52/* Authen Type */
53#define L2TP_AUTHEN_TYPE_RESERVED 0x0000 /* Reserved */
54#define L2TP_AUTHEN_TYPE_TEXTUAL 0x0001 /* Textual username/password exchange */
55#define L2TP_AUTHEN_TYPE_CHAP 0x0002 /* PPP CHAP */
56#define L2TP_AUTHEN_TYPE_PAP 0x0003 /* PPP PAP */
57#define L2TP_AUTHEN_TYPE_NO_AUTH 0x0004 /* No Authentication */
58#define L2TP_AUTHEN_TYPE_MSCHAPv1 0x0005 /* MSCHAPv1 */
59
60#define L2TP_PROXY_AUTH_ID_MASK 0x00ff
61
62