2017-06-02 14:18:50 +00:00
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/* packet-netgear-ensemble.c
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2017-05-05 20:56:41 +00:00
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*
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* Routines for Netgear AP Ensemble Protocol
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* Charlie Lenahan <clenahan@sonicbison.com>
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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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2018-02-12 11:23:27 +00:00
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* SPDX-License-Identifier: GPL-2.0-or-later
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2017-05-05 20:56:41 +00:00
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*/
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#include "config.h"
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#include <epan/packet.h>
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2017-05-09 16:56:01 +00:00
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void proto_register_nge(void);
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void proto_reg_handoff_nge(void);
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2017-05-05 20:56:41 +00:00
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#define NETGEAR_ENSEMBLE_PORT 4554
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static int proto_nge = -1;
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static int hf_nge_version = -1;
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static int hf_nge_unknown = -1;
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static int hf_nge_unknown_int32 = -1;
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static int hf_nge_sequence = -1;
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static int hf_nge_tlv_length = -1;
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static int hf_nge_ensemble_name = -1;
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static int hf_nge_firmware_name = -1;
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static int hf_nge_region_name = -1;
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static int hf_nge_firmware_version = -1;
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static int hf_nge_ap_name = -1;
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static int hf_nge_uptime = -1;
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static int hf_nge_mac = -1;
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static int hf_nge_ip = -1;
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static int hf_nge_uuid = -1;
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static gint ett_nge = -1;
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static gint ett_nge_lv = -1;
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static gint ett_nge_ensemble = -1;
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static void
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2017-05-06 15:57:01 +00:00
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dissect_nge_esemble(tvbuff_t *tvb,proto_tree *tree, int offset)
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2017-05-05 20:56:41 +00:00
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{
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guint strLen=0;
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guint32 length = tvb_get_guint32(tvb, offset,ENC_BIG_ENDIAN);
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proto_tree *ensemble_tree = proto_tree_add_subtree(tree, tvb, offset, length+4, ett_nge_ensemble, NULL,"Ensemble");
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proto_tree_add_uint(ensemble_tree, hf_nge_tlv_length, tvb, offset, 4, length);
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offset += 4;
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proto_tree_add_item(ensemble_tree, hf_nge_unknown, tvb, offset, 17, ENC_NA);
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offset += 17;
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/* type == 1 ? */
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proto_tree_add_item(ensemble_tree, hf_nge_unknown_int32, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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/* uuid ? */
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proto_tree_add_item(ensemble_tree, hf_nge_uuid, tvb, offset, 16, ENC_BIG_ENDIAN);
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offset += 16;
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proto_tree_add_item(ensemble_tree, hf_nge_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ensemble_tree, hf_nge_unknown, tvb, offset, 20, ENC_NA);
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offset += 20;
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proto_tree_add_item(ensemble_tree, hf_nge_mac, tvb, offset, 6, ENC_NA);
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offset += 6;
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/* type == 2 ? */
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proto_tree_add_item(ensemble_tree, hf_nge_unknown_int32, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item_ret_length(ensemble_tree, hf_nge_ensemble_name, tvb, offset, 4, ENC_ASCII|ENC_BIG_ENDIAN, &strLen);
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offset += strLen;
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proto_tree_add_item_ret_length(ensemble_tree, hf_nge_firmware_name, tvb, offset, 4, ENC_ASCII|ENC_BIG_ENDIAN, &strLen);
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offset += strLen;
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proto_tree_add_item_ret_length(ensemble_tree, hf_nge_region_name, tvb, offset, 4, ENC_ASCII|ENC_BIG_ENDIAN, &strLen);
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offset += strLen;
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/* type == 0 ? */
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proto_tree_add_item(ensemble_tree, hf_nge_unknown_int32, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item_ret_length(ensemble_tree, hf_nge_firmware_version, tvb, offset, 4, ENC_ASCII|ENC_BIG_ENDIAN, &strLen);
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offset += strLen;
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proto_tree_add_item(ensemble_tree, hf_nge_unknown, tvb, offset, 16, ENC_NA);
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offset += 16;
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/* timestamp? */
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proto_tree_add_item(ensemble_tree, hf_nge_uptime, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item_ret_length(ensemble_tree, hf_nge_ap_name, tvb, offset, 4, ENC_ASCII|ENC_BIG_ENDIAN, &strLen);
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offset += strLen;
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proto_tree_add_item(ensemble_tree, hf_nge_unknown, tvb, offset, -1, ENC_NA);
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}
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static int
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dissect_nge(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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int offset = 0;
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proto_item *ti = proto_tree_add_item(tree, proto_nge, tvb, 0, -1, ENC_NA);
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proto_tree *nge_tree = proto_item_add_subtree(ti, ett_nge);
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "NGE");
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/* Clear out stuff in the info column */
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col_clear(pinfo->cinfo,COL_INFO);
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/* presumed version */
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proto_tree_add_item(nge_tree, hf_nge_version, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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proto_tree_add_item(nge_tree, hf_nge_unknown, tvb, offset, 3, ENC_NA);
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offset += 3;
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proto_tree_add_item(nge_tree, hf_nge_sequence, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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dissect_nge_esemble(tvb, nge_tree, offset);
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return tvb_captured_length(tvb);
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}
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void
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proto_register_nge(void)
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{
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static hf_register_info hf[] = {
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{ &hf_nge_version,
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{ "Version", "nge.version",FT_UINT8, BASE_DEC,
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NULL, 0x0,NULL, HFILL }},
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{ &hf_nge_unknown,
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{ "Unknown", "nge.unknown", FT_BYTES, BASE_NONE,
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NULL, 0x0,NULL, HFILL }},
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{ &hf_nge_unknown_int32,
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2017-05-14 13:12:55 +00:00
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{ "Unknown", "nge.unknown.int32", FT_UINT32, BASE_DEC,
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2017-05-05 20:56:41 +00:00
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NULL, 0x0, NULL, HFILL }},
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{ &hf_nge_sequence,
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{ "Sequence", "nge.sequence", FT_UINT32, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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{ &hf_nge_uptime,
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{ "Uptime", "nge.uptime", FT_UINT32, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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{ &hf_nge_mac,
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{ "MAC", "nge.mac", FT_ETHER, BASE_NONE,
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NULL, 0x0,NULL, HFILL }},
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{ &hf_nge_ip,
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{ "IP", "nge.ip", FT_IPv4, BASE_NONE,
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NULL, 0x0,NULL, HFILL }},
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{ &hf_nge_uuid,
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{ "Device UUID", "nge.uuid", FT_GUID, BASE_NONE,
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NULL, 0x0,NULL, HFILL }},
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{ &hf_nge_ensemble_name,
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{ "Ensemble Name", "nge.ensemble_name", FT_UINT_STRING, BASE_NONE,
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NULL, 0x0, NULL, HFILL }},
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{ &hf_nge_firmware_name,
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{ "Firmware Name", "nge.firmware_name", FT_UINT_STRING, BASE_NONE,
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NULL, 0x0, NULL, HFILL }},
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{ &hf_nge_region_name,
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{ "Region Name", "nge.region_name", FT_UINT_STRING, BASE_NONE,
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NULL, 0x0, NULL, HFILL }},
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{ &hf_nge_firmware_version,
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{ "Firmware Version", "nge.firmware_version", FT_UINT_STRING, BASE_NONE,
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NULL, 0x0, NULL, HFILL }},
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{ &hf_nge_ap_name,
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{ "AP Name", "nge.ap_name", FT_UINT_STRING, BASE_NONE,
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NULL, 0x0, NULL, HFILL }},
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{ &hf_nge_tlv_length,
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{ "Length", "nge.tlv_len", FT_UINT32, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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};
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/* Setup protocol subtree array */
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static gint *ett[] = {
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&ett_nge,
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&ett_nge_lv,
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&ett_nge_ensemble
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};
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proto_nge = proto_register_protocol ("Netgear Ensemble Protocol", "NGE", "nge");
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proto_register_field_array(proto_nge, 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_nge(void)
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{
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dissector_handle_t nge_handle;
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nge_handle = create_dissector_handle(dissect_nge, proto_nge);
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dissector_add_for_decode_as_with_preference("udp.port", nge_handle);
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}
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2017-05-09 16:56:33 +00:00
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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