8efad466c4
Do not require a useless ENC_NA parameter for string encodings.
FT_STRING and FT_STRINGZ types don't have any ndianness.
Follow-up to 6ec429622c
.
203 lines
5.6 KiB
C
203 lines
5.6 KiB
C
/* packet-oicq.c
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* Routines for OICQ - IM software,popular in China - packet dissection
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* (c) Copyright Secfire <secfire@gmail.com>
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*
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* OICQ is an IM software,which is popular in China. And,
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* OICQ has more than 10 millions users at present.
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* The Protocol showed in this file, is found by investigating OICQ's
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* Packets as a black box.
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*
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* The OICQ client software is always changing,and the protocol of
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* communication is also.
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <epan/packet.h>
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void proto_register_oicq(void);
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void proto_reg_handoff_oicq(void);
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/*
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Protocol Flag: 8bit unsigned
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Sender Flag: 16bit unsigned
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Command Number: 16bit unsigned
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Sequence Number: 16bit unsigned
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OICQ Number: 32bit unsigned
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Data: Variable Length data
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*
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*/
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/* By default, but can be completely different */
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#define UDP_PORT_OICQ 8000 /* Not IANA regisrered */
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static int proto_oicq = -1;
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static int hf_oicq_flag = -1;
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static int hf_oicq_version = -1;
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static int hf_oicq_command = -1;
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static int hf_oicq_seq = -1;
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static int hf_oicq_qqid = -1;
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static int hf_oicq_data = -1;
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static gint ett_oicq = -1;
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static const value_string oicq_flag_vals[] = {
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{ 0x02, "Oicq packet" },
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{ 0, NULL }
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};
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static const value_string oicq_command_vals[] = {
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{ 0x0001, "Log out" },
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{ 0x0002, "Heart Message" },
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{ 0x0004, "Update User information" },
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{ 0x0005, "Search user" },
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{ 0x0006, "Get User informationBroadcast" },
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{ 0x0009, "Add friend no auth" },
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{ 0x000a, "Delete user" },
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{ 0x000b, "Add friend by auth" },
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{ 0x000d, "Set status" },
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{ 0x0012, "Confirmation of receiving message from server" },
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{ 0x0016, "Send message" },
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{ 0x0017, "Receive message" },
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{ 0x0018, "Retrieve information" },
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{ 0x001a, "Reserved " },
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{ 0x001c, "Delete Me" },
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{ 0x001d, "Request KEY" },
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{ 0x0021, "Cell Phone" },
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{ 0x0022, "Log in" },
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{ 0x0026, "Get friend list" },
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{ 0x0027, "Get friend online" },
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{ 0x0029, "Cell PHONE" },
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{ 0x0030, "Operation on group" },
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{ 0x0031, "Log in test" },
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{ 0x003c, "Group name operation" },
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{ 0x003d, "Upload group friend" },
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{ 0x003e, "MEMO Operation" },
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{ 0x0058, "Download group friend" },
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{ 0x005c, "Get level" },
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{ 0x0062, "Request login" },
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{ 0x0065, "Request extra information" },
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{ 0x0067, "Signature operation" },
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{ 0x0080, "Receive system message" },
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{ 0x0081, "Get status of friend" },
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{ 0x00b5, "Get friend's status of group" },
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{ 0x03f7, "Withdraw message" },
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{ 0, NULL }
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};
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/* dissect_oicq - dissects oicq packet data
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* tvb - tvbuff for packet data (IN)
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* pinfo - packet info
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* proto_tree - resolved protocol tree
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*/
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static int
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dissect_oicq(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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proto_tree *oicq_tree;
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proto_item *ti;
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int offset = 0;
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/* Make sure this packet is for us. */
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/* heuristic: OICQ iff (([0] == STX) && ([3/4] == <valid_command>) ) */
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/* (Supposedly each OICQ message ends with an ETX so a test for */
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/* same could also be part of the heuristic). */
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if ( (try_val_to_str(tvb_get_guint8(tvb, 0), oicq_flag_vals) == NULL) ||
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(try_val_to_str(tvb_get_ntohs(tvb, 3), oicq_command_vals) == NULL) )
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return 0;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "OICQ");
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col_set_str(pinfo->cinfo, COL_INFO, "OICQ Protocol ");
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if (tree) {
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ti = proto_tree_add_item(tree, proto_oicq, tvb, 0, -1, ENC_NA);
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oicq_tree = proto_item_add_subtree(ti, ett_oicq);
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proto_tree_add_item(oicq_tree, hf_oicq_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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proto_tree_add_item(oicq_tree, hf_oicq_version, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(oicq_tree, hf_oicq_command, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(oicq_tree, hf_oicq_seq, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(oicq_tree, hf_oicq_qqid, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(oicq_tree, hf_oicq_data, tvb, offset, -1, ENC_ASCII);
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}
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return tvb_captured_length(tvb);
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}
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void
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proto_register_oicq(void)
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{
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static hf_register_info hf[] = {
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{ &hf_oicq_flag, {
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"Flag", "oicq.flag", FT_UINT8, BASE_HEX,
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VALS(oicq_flag_vals), 0, "Protocol Flag", HFILL }},
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{ &hf_oicq_version, {
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"Version", "oicq.version", FT_UINT16, BASE_HEX,
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NULL, 0, "Version-zz", HFILL }},
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{ &hf_oicq_command, {
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"Command", "oicq.command", FT_UINT16, BASE_DEC,
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VALS(oicq_command_vals), 0, NULL, HFILL }},
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{ &hf_oicq_seq, {
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"Sequence", "oicq.seq", FT_UINT16, BASE_DEC,
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NULL, 0, NULL, HFILL }},
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{ &hf_oicq_qqid, {
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"Data(OICQ Number,if sender is client)", "oicq.qqid", FT_UINT32, BASE_DEC,
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NULL, 0, NULL, HFILL }},
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{ &hf_oicq_data, {
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"Data", "oicq.data", FT_STRING, BASE_NONE,
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NULL, 0, NULL, HFILL }},
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};
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static gint *ett[] = {
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&ett_oicq,
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};
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proto_oicq = proto_register_protocol("OICQ - IM software, popular in China", "OICQ", "oicq");
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proto_register_field_array(proto_oicq, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_oicq(void)
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{
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dissector_handle_t oicq_handle;
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oicq_handle = create_dissector_handle(dissect_oicq, proto_oicq);
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dissector_add_uint_with_preference("udp.port", UDP_PORT_OICQ, oicq_handle);
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}
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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