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7 Commits
d0ee1a7044
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38985ea9e2
Author | SHA1 | Date | |
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38985ea9e2 | |||
1976838d8a | |||
a1ce7a848b | |||
21e4ff1a66 | |||
25297ed4d9 | |||
68541b1191 | |||
7bc5a3530c |
@ -3,7 +3,6 @@ const PacketType = {
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ProbeRequest: 'ProbeRequest',
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ProbeResponse: 'ProbeResponse',
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Data: 'Data',
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MoreData: 'MoreData',
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RequestToSend: 'RequestToSend',
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ClearToSend: 'ClearToSend',
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Acknowledgment: 'Acknowledgment',
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@ -17,9 +16,19 @@ const PacketType = {
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Unknown: 'Unknown'
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}
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const FlagType = {
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MoreFragments: "MoreFragments",
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Retry: "Retry",
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PwrMgt: "PwrMgt",
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MoreData: "MoreData",
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Protected: "Protected",
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Order: "Order"
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}
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class Packet{
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timestampMicros;
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isRetry;
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flags = {};
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srcMac;
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dstMac;
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@ -80,6 +89,7 @@ class HandshakePacket extends Packet{
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// Specify exports
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module.exports = {
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PacketType,
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FlagType,
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Packet,
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PacketWithSSID,
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BeaconPacket,
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@ -1,7 +1,7 @@
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const logger = require.main.require("./helper/logger.js")("PacketStreamFactory");
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const { Transform } = require('stream');
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const { DateTime } = require("luxon");
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const { PacketType, Packet, PacketWithSSID, BeaconPacket, ProbeRequestPacket, ProbeResponsePacket, AuthenticationPacket, AuthenticationType, AssociationResponsePacket, DisassociationPacket, HandshakePacket, HandshakeStage } = require.main.require('./dto/Packet.js');
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const { PacketType, FlagType, Packet, PacketWithSSID, BeaconPacket, ProbeRequestPacket, ProbeResponsePacket, AuthenticationPacket, AuthenticationType, AssociationResponsePacket, DisassociationPacket, HandshakePacket, HandshakeStage } = require.main.require('./dto/Packet.js');
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const hexConv = require.main.require("./helper/hexConverter.js");
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const PACKET_TYPE_MAP = {
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@ -9,7 +9,6 @@ const PACKET_TYPE_MAP = {
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"Probe Request": PacketType.ProbeRequest,
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"Probe Response": PacketType.ProbeResponse,
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"Data": PacketType.Data,
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"More Data": PacketType.MoreData,
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"Request-To-Send": PacketType.RequestToSend,
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"Clear-To-Send": PacketType.ClearToSend,
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"Acknowledgment": PacketType.Acknowledgment,
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@ -27,14 +26,18 @@ const AUTHENTICATION_TYPE_MAP = {
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"(Open System)-2": AuthenticationType.OpenSystem_2,
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}
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const FLAG_TYPE_MAP = {
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"Retry": FlagType.Retry,
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"Pwr Mgmt": FlagType.PwrMgt,
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"More Data": FlagType.MoreData,
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"Protected": FlagType.Protected,
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}
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const FLAG_TYPE_MAPS_REGEX = Object.keys(FLAG_TYPE_MAP).join('|');
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/**
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* Read data from text-blocks and convert them to Packet
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*/
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class PacketStreamFactory extends Transform{
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matcher;
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withholdLastBlock;
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matchAllOnFlush;
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constructor(){
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super({
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readableObjectMode: true,
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@ -50,8 +53,6 @@ class PacketStreamFactory extends Transform{
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packet = this._handleHeader(packet, header);
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packet = this._handlePayload(packet, lines);
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logger.debug(packet);
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next(null, packet); // Get next chunk
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}
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@ -59,7 +60,10 @@ class PacketStreamFactory extends Transform{
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// Convert time to epoch-micros Unfortunately luxon doesnt use micros, but millis as smallest time-unit requiring some "hacks"
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packet.timestampMicros = DateTime.fromISO(data.slice(0, 12)).toSeconds() + data.slice(12, 15)/1000000;
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packet.isRetry = data.match(/(?<=^|\s)Retry(?=$|\s)/i)? true: false;
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// Find flags
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data.match(data.match(new RegExp('(?<=^|\\s)('+ FLAG_TYPE_MAPS_REGEX +')(?=$|\\s)', 'ig'))
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?.forEach(match => packet.flags[FLAG_TYPE_MAP[match]] = true) // Set them to true in flags
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);
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packet.dataRate = Number(data.match(/(?<=^|\s)[0-9]+(\.[0-9]+)?(?=\sMb\/?s($|\s))/i)?.[0]) || null;
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packet.frequency = Number(data.match(/(?<=^|\s)[0-9]{4}(?=\sMHz($|\s))/i)?.[0]) || null;
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@ -69,7 +73,9 @@ class PacketStreamFactory extends Transform{
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packet.signal = Number(data.match(/(?<=^|\s)-[0-9]{2,3}(?=dBm\sSignal($|\s))/i)?.[0]) || null;
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let packetTypeStr = data.match(new RegExp('(?<=^|\\s)('+ PACKET_TYPES_REGEX +')(?=$|\\s)', 'i'))?.[0];
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packet.packetType = packetTypeStr? PACKET_TYPE_MAP[packetTypeStr]: PacketType.Unknown;
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packet.packetType = packetTypeStr? PACKET_TYPE_MAP[packetTypeStr]:
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data.match(/(SA|TA|DA|RA|BSSID):.{17}\s*$/i)? PacketType.NoData:
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PacketType.Unknown;
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packet.srcMac = data.match(/(?<=(^|\s)(SA|TA):).{17}(?=$|\s)/i)?.[0] ?? null;
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@ -112,7 +118,8 @@ class PacketStreamFactory extends Transform{
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data = data.join('');
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// Get payload-Hex-Data. If there is no data: empty
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packet.payloadData = hexConv.hexToBytes(data.match(/(?<=\s)([A-F0-9]{1,4}(?!(\.|x)))/igm)?.join('') ?? '');
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packet.payloadData = hexConv.hexToBytes(data.match(/(?<=\s)([A-F0-9]{1,4}(?=\s))/igm)?.join('') ?? '');
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packet.payloadData.splice(packet.payloadData.length-4, 4); // Remove FrameCheck sequence
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// Cover special cases with more data
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let newPacket;
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@ -121,8 +128,8 @@ class PacketStreamFactory extends Transform{
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newPacket = new HandshakePacket();
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// Read key-information
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let keyInfoRaw = (packet.payloadData[0x5]<<0x8) + packet.payloadData[0x6];
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let keyInfo = {
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const keyInfoRaw = (packet.payloadData[0x5]<<0x8) + packet.payloadData[0x6];
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const keyInfo = {
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"KeyDescriptorVersion": keyInfoRaw>>0 & 0b111,
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"KeyType": keyInfoRaw>>3 & 0b1,
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"KeyIndex": keyInfoRaw>>4 & 0b11,
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