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/* packet-oicq.c
* Routines for OICQ - IM software,popular in China - packet dissection
* (c) Copyright DuBingyao <dubingyao@gmail.com>
*
* $Id$
*
* OICQ is an IM software,which is popular in China. And,
* OICQ has more than 10 millions users at present.
* The Protocol showed in this file, is found by investigating OICQ's
* Packets as a black box.
*
* The OICQ client software is always changing,and the protocol of
* communication is also.
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <epan/packet.h>
/*
Protocol Flag: 8bit unsigned
Sender Flag: 16bit unsigned
Command Number: 16bit unsigned
Data: Variable Length data
*
*/
/* By default, but can be completely different */
#define UDP_PORT_OICQ 8000
static int proto_oicq = -1;
static int hf_oicq_flag = -1;
static int hf_oicq_sender = -1;
static int hf_oicq_command = -1;
static int hf_oicq_data = -1;
static gint ett_oicq = -1;
static const value_string oicq_flag_vals[] = {
{ 0x02, "Oicq packet" },
{ 0, NULL }
};
static const value_string oicq_sender_vals[] = {
{ 0x0100, "Sender is server" },
{ 0x0e1b, "Sender is client" },
{ 0x0000, "Initiazation message sent by server" },
{ 0, NULL }
};
static const value_string oicq_command_vals[] = {
{ 0x0001, "Log out" },
{ 0x0002, "Heart Message" },
{ 0x0004, "Update User information" },
{ 0x0005, "Search user" },
{ 0x0006, "Get User informationBroadcast" },
{ 0x0009, "Add friend no auth" },
{ 0x000a, "Delete user" },
{ 0x000b, "Add friend by auth" },
{ 0x000d, "Set status" },
{ 0x0012, "Confirmation of receiving message from server" },
{ 0x0016, "Send message" },
{ 0x0017, "Receive message" },
{ 0x001a, "Reserved " },
{ 0x001c, "Unkonwn command" },
{ 0x0022, "Log in" },
{ 0x0026, "Get friend list" },
{ 0x0027, "Get friend online" },
{ 0x0030, "Operation on group" },
{ 0x0081, "Get statur of friend" },
{ 0, NULL }
};
/* dissect_oicq - dissects oicq packet data
* tvb - tvbuff for packet data (IN)
* pinfo - packet info
* proto_tree - resolved protocol tree
*/
static void
dissect_oicq(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_tree *oicq_tree;
proto_item *ti;
int offset = 0;
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "OICQ");
if (check_col(pinfo->cinfo, COL_INFO))
{
col_clear(pinfo->cinfo, COL_INFO);
col_set_str(pinfo->cinfo, COL_INFO, "OICQ Protocol ");
}
if (tree) {
ti = proto_tree_add_item(tree, proto_oicq, tvb, 0, -1, FALSE);
oicq_tree = proto_item_add_subtree(ti, ett_oicq);
proto_tree_add_item(oicq_tree, hf_oicq_flag, tvb, offset, 1, FALSE);
offset += 1;
proto_tree_add_item(oicq_tree, hf_oicq_sender, tvb, offset, 2, FALSE);
offset += 2;
proto_tree_add_item(oicq_tree, hf_oicq_command, tvb, offset, 2, FALSE);
offset += 2;
proto_tree_add_item(oicq_tree, hf_oicq_data, tvb, offset, -1, FALSE);
}
}
void
proto_register_oicq(void)
{
static hf_register_info hf[] = {
{ &hf_oicq_flag, {
"Flag", "oicq.flag", FT_UINT8, BASE_HEX,
VALS(oicq_flag_vals), 0, "Protocol Flag", HFILL }},
{ &hf_oicq_sender, {
"Sender", "oicq.sender", FT_UINT16, BASE_DEC,
VALS(oicq_sender_vals), 0, "Sender", HFILL }},
{ &hf_oicq_command, {
"Command", "oicq.command", FT_UINT16, BASE_DEC,
VALS(oicq_command_vals), 0, "Command", HFILL }},
{ &hf_oicq_data, {
"Data", "oicq.data", FT_STRING, 0,
NULL, 0, "Data", HFILL }},
};
static gint *ett[] = {
&ett_oicq,
};
proto_oicq = proto_register_protocol("OICQ - IM software, which is popular in China", "OICQ",
"oicq");
proto_register_field_array(proto_oicq, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_oicq(void)
{
dissector_handle_t oicq_handle;
oicq_handle = create_dissector_handle(dissect_oicq, proto_oicq);
dissector_add("udp.port", UDP_PORT_OICQ, oicq_handle);
}
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