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packet-l2tp.h
1/* packet-l2tp.h
2 * Routines for Layer Two Tunnelling Protocol (L2TP) packet disassembly
3 *
4 * Wireshark - Network traffic analyzer
5 * By Gerald Combs <gerald@wireshark.org>
6 * Copyright 1998 Gerald Combs
7 *
8 * SPDX-License-Identifier: GPL-2.0-or-later
9 */
10#ifndef __PACKET_L2TP_H__
11#define __PACKET_L2TP_H__
12
13 typedef struct _l2tp_cntrl_data {
14 uint32_t ccid;
15 int msg_type;
16} l2tp_cntrl_data_t;
17
18/* L2TPv3 Pseudowire Types
19 * https://www.iana.org/assignments/l2tp-parameters/l2tp-parameters.xhtml
20 */
21/* 0 is unassigned, use for Decode As of sessions where we do not have a
22 * PW Type AVP. (Perhaps if no control packets are captured.) */
23#define L2TPv3_PW_DEFAULT 0x0000
24#define L2TPv3_PW_FR 0x0001
25#define L2TPv3_PW_AAL5 0x0002
26#define L2TPv3_PW_ATM_PORT 0x0003
27#define L2TPv3_PW_ETH_VLAN 0x0004
28#define L2TPv3_PW_ETH 0x0005
29#define L2TPv3_PW_CHDLC 0x0006
30#define L2TPv3_PW_PPP 0x0007 /* Expired draft, unassigned */
31#define L2TPv3_PW_ATM_VCC 0x0009
32#define L2TPv3_PW_ATM_VPC 0x000A
33#define L2TPv3_PW_IP 0x000B /* Expired draft, unassigned */
34#define L2TPv3_PW_DOCSIS_DMPT 0x000C /* MPEG2-TS */
35#define L2TPv3_PW_DOCSIS_PSP 0x000D
36#define L2TPv3_PW_E1 0x0011
37#define L2TPv3_PW_T1 0x0012
38#define L2TPv3_PW_E3 0x0013
39#define L2TPv3_PW_T3 0x0014
40#define L2TPv3_PW_CESOPSN 0x0015
41#define L2TPv3_PW_CESOPSN_CAS 0x0017
42
43#if 0
44/* Other dissectors that do not have Pseudowire Types assigned.
45 * Were any of the unassigned numbers used for these in the past,
46 * as with PPP and IP?
47 */
48#define L2TPv3_PW_MPLS
49#define L2TPv3_PW_LAPD
50#define L2TPv3_PW_ERICSSON
51#endif
52
53#endif /* __PACKET_L2TP_H__ */
_l2tp_cntrl_data
Definition packet-l2tp.h:13