Wireshark  4.3.0
The Wireshark network protocol analyzer
packet-tpkt.h
1 /* packet-tpkt.h
2  *
3  * Routines for TPKT dissection
4  *
5  * Copyright 2000, Philips Electronics N.V.
6  * Andreas Sikkema <andreas.sikkema@philips.com>
7  *
8  * Wireshark - Network traffic analyzer
9  * By Gerald Combs <gerald@wireshark.org>
10  * Copyright 1998 Gerald Combs
11  *
12  * SPDX-License-Identifier: GPL-2.0-or-later
13  */
14 
15 #include "ws_symbol_export.h"
16 
17 /*
18  * Check whether this could be a TPKT-encapsulated PDU.
19  * Returns -1 if it's not, and the PDU length from the TPKT header
20  * if it is.
21  *
22  * "min_len" is the minimum length of the PDU; the length field in the
23  * TPKT header must be at least "4+min_len" in order for this to be a
24  * valid TPKT PDU for the protocol in question.
25  */
26 WS_DLL_PUBLIC int is_tpkt(tvbuff_t *tvb, int min_len);
27 
28 /*
29  * Dissect TPKT-encapsulated data in a TCP stream.
30  */
31 WS_DLL_PUBLIC void dissect_tpkt_encap(tvbuff_t *tvb, packet_info *pinfo,
32  proto_tree *tree, gboolean desegment,
33  dissector_handle_t subdissector_handle);
34 
35 /*
36  * Check whether this could be a ASCII TPKT-encapsulated PDU.
37  * Returns -1 if it's not, and the PDU length from the TPKT header
38  * if it is.
39  *
40  * "min_len" is the minimum length of the PDU; the length field in the
41  * TPKT header must be at least "8+min_len" in order for this to be a
42  * valid TPKT PDU for the protocol in question.
43  */
44 extern guint16 is_asciitpkt(tvbuff_t *tvb);
45 
46 /*
47  * Dissect ASCII TPKT-encapsulated data in a TCP stream.
48  */
49 extern void dissect_asciitpkt(tvbuff_t *tvb, packet_info *pinfo,
50  proto_tree *tree, dissector_handle_t subdissector_handle);
Definition: packet_info.h:44
Definition: proto.h:904
Definition: packet.c:763
Definition: tvbuff-int.h:35