Wireshark 4.5.0
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packet-mpls.h
1/* packet-mpls.h
2 * Declarations of exported routines from MPLS dissector
3 * Author: Carlos Pignataro <[email protected]>
4 * Copyright 2005, cisco Systems, Inc.
5 *
6 * (c) Copyright 2006, _FF_ Francesco Fondelli <[email protected]>
7 * added MPLS OAM support, ITU-T Y.1711
8 * (c) Copyright 2011, Shobhank Sharma <[email protected]>
9 * added MPLS Generic Associated Channel as per RFC 5586
10 *
11 * Wireshark - Network traffic analyzer
12 * By Gerald Combs <[email protected]>
13 * Copyright 1998 Gerald Combs
14 *
15 * SPDX-License-Identifier: GPL-2.0-or-later
16 */
17
18#ifndef PACKET_MPLS_H
19#define PACKET_MPLS_H
20
21/* Special labels in MPLS */
22enum {
23 MPLS_LABEL_IP4_EXPLICIT_NULL = 0,
24 MPLS_LABEL_ROUTER_ALERT,
25 MPLS_LABEL_IP6_EXPLICIT_NULL,
26 MPLS_LABEL_IMPLICIT_NULL,
27 MPLS_LABEL_ELI = 7,
28 MPLS_LABEL_GACH = 13, /* aka GAL */
29 MPLS_LABEL_OAM_ALERT = 14,
30 MPLS_LABEL_MAX_RESERVED = 15,
31 MPLS_LABEL_INVALID = -1
32};
33/* As per RFC 5718 */
34#define PW_ACH_TYPE_MCC 0x0001
35/* As per RFC 5718 */
36#define PW_ACH_TYPE_SCC 0x0002
37/* As per RFC 5885 */
38#define PW_ACH_TYPE_BFD 0x0007
39/* As per RFC 6374 */
40#define PW_ACH_TYPE_DLM 0x000A
41#define PW_ACH_TYPE_ILM 0x000B
42#define PW_ACH_TYPE_DM 0x000C
43#define PW_ACH_TYPE_DLM_DM 0x000D
44#define PW_ACH_TYPE_ILM_DM 0x000E
45/* As per RFC 4385 clause 6 */
46#define PW_ACH_TYPE_IPV4 0x0021
47/* As per RFC 6428 Section 3.3 */
48#define PW_ACH_TYPE_BFD_CC 0x0022
49#define PW_ACH_TYPE_BFD_CV 0x0023
50/* As per RFC 6378 */
51#define PW_ACH_TYPE_PSC 0x0024
52/* As per RFC 6426 Section 7.4 */
53#define PW_ACH_TYPE_ONDEMAND_CV 0x0025
54/* As per RFC 6478 */
55#define PW_ACH_TYPE_PW_OAM 0x0027
56/* As per RFC 7769 */
57#define PW_ACH_TYPE_MAC 0x0028
58/* As per RFC 4385 clause 6 */
59#define PW_ACH_TYPE_IPV6 0x0057
60/* As per RFC 6427 */
61#define PW_ACH_TYPE_MPLSTP_FM 0x0058
62/* As per RFC 6671 */
63#define PW_ACH_TYPE_MPLSTP_OAM 0x8902
64
65/* MPLS over UDP http://tools.ietf.org/html/draft-ietf-mpls-in-udp-11,
66 * udp destination port as defined in
67 * http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=6635
68 */
69#define UDP_PORT_MPLS_OVER_UDP 6635
70
71/*
72 * FF: private data passed from the MPLS dissector to subdissectors
73 * (data parameter).
74 */
75struct mplsinfo {
76 uint32_t label; /* last mpls label in label stack */
77 uint8_t exp; /* former EXP bits of last mpls shim in stack */
78 uint8_t bos; /* BOS bit of last mpls shim in stack */
79 uint8_t ttl; /* TTL bits of last mpls shim in stack */
80};
81
82extern const value_string special_labels[];
83extern void decode_mpls_label(tvbuff_t *tvb, int offset,
84 uint32_t *label, uint8_t *exp,
85 uint8_t *bos, uint8_t *ttl);
86
87extern bool dissect_try_cw_first_nibble(tvbuff_t *tvb, packet_info *pinfo,
88 proto_tree *tree );
89
90#endif
Definition packet_info.h:43
Definition proto.h:901
Definition value_string.h:25
Definition packet-mpls.h:75
Definition tvbuff-int.h:35