epan/dissectors/packet-raknet.h

   1 /* packet-raknet.h
   2  *
   3  * Wireshark - Network traffic analyzer
   4  * By Gerald Combs <gerald@wireshark.org>
   5  * Copyright 1998 Gerald Combs
   6  *
   7  * SPDX-License-Identifier: GPL-2.0-or-later
   8  */
   9
  10 #ifndef __PACKET_RAKNET_H__
  11 #define __PACKET_RAKNET_H__
  12
  13 #include <epan/packet.h>
  14 #include "ws_symbol_export.h"
  15
  16 /*
  17  * Different protocols (i.e. games) use different set of message IDs,
  18  * and we can't infer protocols from message ID because there is no
  19  * central registry. So the only thing we can do is to use port number
  20  * or heuristics to determine the protocol.
  21  *
  22  * If your protocol has a fixed port number, you can register it with
  23  * this function. The registered dissector will be called with a tvb
  24  * buffer which contains a RakNet message including message ID at its
  25  * first octet. Header analysis, packet reassembly, and RakNet system
  26  * messages are all handled by the RakNet dissector so you don't need
  27  * to worry about them.
  28  */
  29 WS_DLL_PUBLIC
  30 void
  31 raknet_add_udp_dissector(uint32_t port, const dissector_handle_t handle);
  32
  33 /*
  34  * Opposite of "raknet_add_udp_dissector()".
  35  */
  36 WS_DLL_PUBLIC
  37 void
  38 raknet_delete_udp_dissector(uint32_t port, const dissector_handle_t handle);
  39
  40 /*
  41  * You can also register a heuristic dissector for your protocol with
  42  * the standard "heur_dissector_add()" function with parent protocol
  43  * "raknet". Protocols with no fixed port are especially encouraged to
  44  * do so. Once your heuristic dissector finds that the protocol of the
  45  * conversation is indeed yours, call this function to skip further
  46  * heuristics. DO NOT USE the standard "conversation_set_dissector()".
  47  */
  48 WS_DLL_PUBLIC
  49 void
  50 raknet_conversation_set_dissector(packet_info *pinfo, const dissector_handle_t handle);
  51
  52 #endif /* __PACKET_RAKNET_H__ */