mirror of
https://github.com/Ylianst/MeshCentral.git
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738 lines
44 KiB
JavaScript
738 lines
44 KiB
JavaScript
/**
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* @description MeshCentral Intel(R) AMT MPS server
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* @author Ylian Saint-Hilaire
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* @copyright Intel Corporation 2018-2019
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* @license Apache-2.0
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* @version v0.0.1
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*/
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/*jslint node: true */
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/*jshint node: true */
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/*jshint strict:false */
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/*jshint -W097 */
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/*jshint esversion: 6 */
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"use strict";
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// Construct a Intel AMT MPS server object
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module.exports.CreateMpsServer = function (parent, db, args, certificates) {
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var obj = {};
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obj.parent = parent;
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obj.db = db;
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obj.args = args;
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obj.certificates = certificates;
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obj.ciraConnections = {};
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var tlsSessionStore = {}; // Store TLS session information for quick resume.
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var tlsSessionStoreCount = 0; // Number of cached TLS session information in store.
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const constants = (require('crypto').constants ? require('crypto').constants : require('constants')); // require('constants') is deprecated in Node 11.10, use require('crypto').constants instead.
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const common = require("./common.js");
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const net = require("net");
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const tls = require("tls");
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const MAX_IDLE = 90000; // 90 seconds max idle time, higher than the typical KEEP-ALIVE periode of 60 seconds
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if (obj.args.mpstlsoffload) {
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obj.server = net.createServer(onConnection);
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} else {
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obj.server = tls.createServer({ key: certificates.mps.key, cert: certificates.mps.cert, requestCert: true, rejectUnauthorized: false, ciphers: "HIGH:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!SRP:!CAMELLIA", secureOptions: constants.SSL_OP_NO_SSLv2 | constants.SSL_OP_NO_SSLv3 | constants.SSL_OP_NO_COMPRESSION }, onConnection);
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//obj.server.on('secureConnection', function () { /*console.log('tlsServer secureConnection');*/ });
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//obj.server.on('error', function () { console.log('MPS tls server error'); });
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obj.server.on('newSession', function (id, data, cb) { if (tlsSessionStoreCount > 1000) { tlsSessionStoreCount = 0; tlsSessionStore = {}; } tlsSessionStore[id.toString('hex')] = data; tlsSessionStoreCount++; cb(); });
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obj.server.on('resumeSession', function (id, cb) { cb(null, tlsSessionStore[id.toString('hex')] || null); });
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}
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obj.server.listen(args.mpsport, function () { console.log("MeshCentral Intel(R) AMT server running on " + certificates.AmtMpsName + ":" + args.mpsport + ((args.mpsaliasport != null) ? (", alias port " + args.mpsaliasport) : "") + "."); }).on("error", function (err) { console.error("ERROR: MeshCentral Intel(R) AMT server port " + args.mpsport + " is not available."); if (args.exactports) { process.exit(); } });
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obj.server.on('tlsClientError', function (err, tlssocket) { if (args.mpsdebug) { var remoteAddress = tlssocket.remoteAddress; if (tlssocket.remoteFamily == 'IPv6') { remoteAddress = '[' + remoteAddress + ']'; } console.log('MPS:Invalid TLS connection from ' + remoteAddress + ':' + tlssocket.remotePort + '.'); } });
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obj.parent.updateServerState("mps-port", args.mpsport);
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obj.parent.updateServerState("mps-name", certificates.AmtMpsName);
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if (args.mpsaliasport != null) { obj.parent.updateServerState("mps-alias-port", args.mpsaliasport); }
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const APFProtocol = {
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UNKNOWN: 0,
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DISCONNECT: 1,
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SERVICE_REQUEST: 5,
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SERVICE_ACCEPT: 6,
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USERAUTH_REQUEST: 50,
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USERAUTH_FAILURE: 51,
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USERAUTH_SUCCESS: 52,
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GLOBAL_REQUEST: 80,
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REQUEST_SUCCESS: 81,
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REQUEST_FAILURE: 82,
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CHANNEL_OPEN: 90,
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CHANNEL_OPEN_CONFIRMATION: 91,
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CHANNEL_OPEN_FAILURE: 92,
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CHANNEL_WINDOW_ADJUST: 93,
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CHANNEL_DATA: 94,
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CHANNEL_CLOSE: 97,
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PROTOCOLVERSION: 192,
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KEEPALIVE_REQUEST: 208,
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KEEPALIVE_REPLY: 209,
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KEEPALIVE_OPTIONS_REQUEST: 210,
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KEEPALIVE_OPTIONS_REPLY: 211
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};
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/*
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const APFDisconnectCode = {
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HOST_NOT_ALLOWED_TO_CONNECT: 1,
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PROTOCOL_ERROR: 2,
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KEY_EXCHANGE_FAILED: 3,
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RESERVED: 4,
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MAC_ERROR: 5,
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COMPRESSION_ERROR: 6,
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SERVICE_NOT_AVAILABLE: 7,
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PROTOCOL_VERSION_NOT_SUPPORTED: 8,
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HOST_KEY_NOT_VERIFIABLE: 9,
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CONNECTION_LOST: 10,
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BY_APPLICATION: 11,
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TOO_MANY_CONNECTIONS: 12,
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AUTH_CANCELLED_BY_USER: 13,
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NO_MORE_AUTH_METHODS_AVAILABLE: 14,
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INVALID_CREDENTIALS: 15,
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CONNECTION_TIMED_OUT: 16,
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BY_POLICY: 17,
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TEMPORARILY_UNAVAILABLE: 18
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};
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const APFChannelOpenFailCodes = {
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ADMINISTRATIVELY_PROHIBITED: 1,
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CONNECT_FAILED: 2,
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UNKNOWN_CHANNEL_TYPE: 3,
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RESOURCE_SHORTAGE: 4,
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};
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*/
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const APFChannelOpenFailureReasonCode = {
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AdministrativelyProhibited: 1,
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ConnectFailed: 2,
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UnknownChannelType: 3,
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ResourceShortage: 4,
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};
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function onConnection(socket) {
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if (obj.args.mpstlsoffload) {
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socket.tag = { first: true, clientCert: null, accumulator: "", activetunnels: 0, boundPorts: [], socket: socket, host: null, nextchannelid: 4, channels: {}, nextsourceport: 0 };
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} else {
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socket.tag = { first: true, clientCert: socket.getPeerCertificate(true), accumulator: "", activetunnels: 0, boundPorts: [], socket: socket, host: null, nextchannelid: 4, channels: {}, nextsourceport: 0 };
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}
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socket.setEncoding("binary");
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Debug(1, "MPS:New CIRA connection");
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// Setup the CIRA keep alive timer
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socket.setTimeout(MAX_IDLE);
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socket.on("timeout", () => { Debug(1, "MPS:CIRA timeout, disconnecting."); try { socket.end(); } catch (e) { } });
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socket.addListener("data", function (data) {
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if (args.mpsdebug) { var buf = Buffer.from(data, "binary"); console.log("MPS <-- (" + buf.length + "):" + buf.toString('hex')); } // Print out received bytes
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socket.tag.accumulator += data;
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// Detect if this is an HTTPS request, if it is, return a simple answer and disconnect. This is useful for debugging access to the MPS port.
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if (socket.tag.first == true) {
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if (socket.tag.accumulator.length < 3) return;
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//if (!socket.tag.clientCert.subject) { console.log("MPS Connection, no client cert: " + socket.remoteAddress); socket.write('HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\nConnection: close\r\n\r\nMeshCentral2 MPS server.\r\nNo client certificate given.'); socket.end(); return; }
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if (socket.tag.accumulator.substring(0, 3) == "GET") { if (args.mpsdebug) { console.log("MPS Connection, HTTP GET detected: " + socket.remoteAddress); } socket.write("HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n<!DOCTYPE html><html><head><meta charset=\"UTF-8\"></head><body>MeshCentral2 MPS server.<br />Intel® AMT computers should connect here.</body></html>"); socket.end(); return; }
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socket.tag.first = false;
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// Setup this node with certificate authentication
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if (socket.tag.clientCert && socket.tag.clientCert.subject && socket.tag.clientCert.subject.O && socket.tag.clientCert.subject.O.length == 64) {
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// This is a node where the MeshID is indicated within the CIRA certificate
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var domainid = '', meshid;
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var xx = socket.tag.clientCert.subject.O.split('/');
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if (xx.length == 1) { meshid = xx[0]; } else { domainid = xx[0].toLowerCase(); meshid = xx[1]; }
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socket.tag.domainid = domainid;
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socket.tag.meshid = 'mesh/' + domainid + '/' + meshid;
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socket.tag.nodeid = 'node/' + domainid + '/' + require('crypto').createHash('sha384').update(common.hex2rstr(socket.tag.clientCert.modulus, 'binary')).digest('base64').replace(/\+/g, '@').replace(/\//g, '$');
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socket.tag.name = socket.tag.clientCert.subject.CN;
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socket.tag.connectTime = Date.now();
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socket.tag.host = '';
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// Fetch the mesh
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obj.db.Get(socket.tag.meshid, function (err, meshes) {
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if (meshes.length == 1) {
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var mesh = meshes[0];
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obj.db.Get(socket.tag.nodeid, function (err, nodes) {
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if (nodes.length == 0) {
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if (mesh.mtype == 1) {
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// Node is not in the database, add it. Credentials will be empty until added by the user.
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var device = { type: 'node', mtype: 1, _id: socket.tag.nodeid, meshid: socket.tag.meshid, name: socket.tag.name, host: null, domain: domainid, intelamt: { user: '', pass: '', tls: 0, state: 2 } };
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obj.db.Set(device);
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// Event the new node
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var device2 = common.Clone(device);
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if (device2.intelamt.pass != null) delete device2.intelamt.pass; // Remove the Intel AMT password before eventing this.
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var change = 'CIRA added device ' + socket.tag.name + ' to mesh ' + mesh.name;
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obj.parent.DispatchEvent(['*', socket.tag.meshid], obj, { etype: 'node', action: 'addnode', node: device2, msg: change, domain: domainid });
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} else {
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// New CIRA connection for unknown node, disconnect.
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console.log('CIRA connection for unknown node with incorrect group type. meshid: ' + socket.tag.meshid);
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socket.end();
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return;
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}
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} else {
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// Node is already present
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var node = nodes[0];
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if ((node.intelamt != null) && (node.intelamt.state == 2)) { socket.tag.host = node.intelamt.host; }
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}
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// Add the connection to the MPS connection list
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obj.ciraConnections[socket.tag.nodeid] = socket;
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obj.parent.SetConnectivityState(socket.tag.meshid, socket.tag.nodeid, socket.tag.connectTime, 2, 7); // TODO: Right now report power state as "present" (7) until we can poll.
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});
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} else {
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console.log('ERROR: Intel AMT CIRA connected with unknown groupid: ' + socket.tag.meshid);
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socket.end();
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return;
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}
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});
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} else {
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// This node connected without certificate authentication, use password auth
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//console.log('Intel AMT CIRA connected without certificate authentication');
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}
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}
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try {
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// Parse all of the APF data we can
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var l = 0;
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do { l = ProcessCommand(socket); if (l > 0) { socket.tag.accumulator = socket.tag.accumulator.substring(l); } } while (l > 0);
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if (l < 0) { socket.end(); }
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} catch (e) {
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console.log(e);
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}
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});
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// Process one AFP command
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function ProcessCommand(socket) {
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var cmd = socket.tag.accumulator.charCodeAt(0);
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var len = socket.tag.accumulator.length;
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var data = socket.tag.accumulator;
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if (len == 0) { return 0; }
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switch (cmd) {
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case APFProtocol.KEEPALIVE_REQUEST: {
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if (len < 5) return 0;
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Debug(3, 'MPS:KEEPALIVE_REQUEST');
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SendKeepAliveReply(socket, common.ReadInt(data, 1));
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return 5;
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}
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case APFProtocol.KEEPALIVE_REPLY: {
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if (len < 5) return 0;
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Debug(3, 'MPS:KEEPALIVE_REPLY');
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return 5;
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}
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case APFProtocol.PROTOCOLVERSION: {
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if (len < 93) return 0;
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socket.tag.MajorVersion = common.ReadInt(data, 1);
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socket.tag.MinorVersion = common.ReadInt(data, 5);
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socket.tag.SystemId = guidToStr(common.rstr2hex(data.substring(13, 29))).toLowerCase();
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Debug(3, 'MPS:PROTOCOLVERSION', socket.tag.MajorVersion, socket.tag.MinorVersion, socket.tag.SystemId);
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return 93;
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}
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case APFProtocol.USERAUTH_REQUEST: {
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if (len < 13) return 0;
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var usernameLen = common.ReadInt(data, 1);
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var username = data.substring(5, 5 + usernameLen);
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var serviceNameLen = common.ReadInt(data, 5 + usernameLen);
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var serviceName = data.substring(9 + usernameLen, 9 + usernameLen + serviceNameLen);
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var methodNameLen = common.ReadInt(data, 9 + usernameLen + serviceNameLen);
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var methodName = data.substring(13 + usernameLen + serviceNameLen, 13 + usernameLen + serviceNameLen + methodNameLen);
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var passwordLen = 0, password = null;
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if (methodName == 'password') {
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passwordLen = common.ReadInt(data, 14 + usernameLen + serviceNameLen + methodNameLen);
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password = data.substring(18 + usernameLen + serviceNameLen + methodNameLen, 18 + usernameLen + serviceNameLen + methodNameLen + passwordLen);
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}
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//console.log('MPS:USERAUTH_REQUEST user=' + username + ', service=' + serviceName + ', method=' + methodName + ', password=' + password);
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Debug(3, 'MPS:USERAUTH_REQUEST user=' + username + ', service=' + serviceName + ', method=' + methodName + ', password=' + password);
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// Check the CIRA password
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if ((args.mpspass != null) && (password != args.mpspass)) { Debug(1, 'MPS:Incorrect password', username, password); SendUserAuthFail(socket); return -1; }
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// Check the CIRA username, which should be the start of the MeshID.
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if (usernameLen != 16) { Debug(1, 'MPS:Username length not 16', username, password); SendUserAuthFail(socket); return -1; }
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var meshIdStart = '/' + username, mesh = null;
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if (obj.parent.webserver.meshes) { for (var i in obj.parent.webserver.meshes) { if (obj.parent.webserver.meshes[i]._id.replace(/\@/g, 'X').replace(/\$/g, 'X').indexOf(meshIdStart) > 0) { mesh = obj.parent.webserver.meshes[i]; break; } } }
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if (mesh == null) { Debug(1, 'MPS:Mesh not found', username, password); SendUserAuthFail(socket); return -1; }
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// If this is a agent-less mesh, use the device guid 3 times as ID.
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if (mesh.mtype == 1) {
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// Intel AMT GUID (socket.tag.SystemId) will be used as NodeID
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var systemid = socket.tag.SystemId.split('-').join('');
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var nodeid = Buffer.from(systemid + systemid + systemid, 'hex').toString('base64').replace(/\+/g, '@').replace(/\//g, '$');
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socket.tag.name = '';
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socket.tag.nodeid = 'node/' + mesh.domain + '/' + nodeid; // Turn 16bit systemid guid into 48bit nodeid that is base64 encoded
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socket.tag.meshid = mesh._id;
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socket.tag.connectTime = Date.now();
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obj.db.Get(socket.tag.nodeid, function (err, nodes) {
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if (nodes.length == 0) {
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if (mesh.mtype == 1) {
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// Node is not in the database, add it. Credentials will be empty until added by the user.
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var device = { type: 'node', mtype: 1, _id: socket.tag.nodeid, meshid: socket.tag.meshid, name: socket.tag.name, host: null, domain: mesh.domain, intelamt: { user: '', pass: '', tls: 0, state: 2 } };
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obj.db.Set(device);
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// Event the new node
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var device2 = common.Clone(device);
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if (device2.intelamt.pass != null) delete device2.intelamt.pass; // Remove the Intel AMT password before eventing this.
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var change = 'CIRA added device ' + socket.tag.name + ' to group ' + mesh.name;
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obj.parent.DispatchEvent(['*', socket.tag.meshid], obj, { etype: 'node', action: 'addnode', node: device2, msg: change, domain: mesh.domain });
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} else {
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// New CIRA connection for unknown node, disconnect.
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console.log('CIRA connection for unknown node with incorrect group type. meshid: ' + socket.tag.meshid);
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socket.end();
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return;
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}
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} else {
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// Node is already present
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var node = nodes[0];
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if ((node.intelamt != null) && (node.intelamt.state == 2)) { socket.tag.host = node.intelamt.host; }
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}
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// Add the connection to the MPS connection list
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obj.ciraConnections[socket.tag.nodeid] = socket;
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obj.parent.SetConnectivityState(socket.tag.meshid, socket.tag.nodeid, socket.tag.connectTime, 2, 7); // TODO: Right now report power state as "present" (7) until we can poll.
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SendUserAuthSuccess(socket); // Notify the auth success on the CIRA connection
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});
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} else if (mesh.mtype == 2) { // If this is a agent mesh, search the mesh for this device UUID
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// Intel AMT GUID (socket.tag.SystemId) will be used to search the node
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obj.db.getAmtUuidNode(mesh._id, socket.tag.SystemId, function (err, nodes) { // TODO: May need to optimize this request with indexes
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if (nodes.length == 0) {
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// New CIRA connection for unknown node, disconnect.
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console.log('CIRA connection for unknown node. groupid: ' + mesh._id + ', uuid: ' + socket.tag.SystemId);
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socket.end();
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return;
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}
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// Node is present
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var node = nodes[0];
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if ((node.intelamt != null) && (node.intelamt.state == 2)) { socket.tag.host = node.intelamt.host; }
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socket.tag.nodeid = node._id;
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socket.tag.meshid = mesh._id;
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socket.tag.connectTime = Date.now();
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// Add the connection to the MPS connection list
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obj.ciraConnections[socket.tag.nodeid] = socket;
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obj.parent.SetConnectivityState(socket.tag.meshid, socket.tag.nodeid, socket.tag.connectTime, 2, 7); // TODO: Right now report power state as "present" (7) until we can poll.
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SendUserAuthSuccess(socket); // Notify the auth success on the CIRA connection
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});
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} else { // Unknown mesh type
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// New CIRA connection for unknown node, disconnect.
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console.log('CIRA connection to a unknown group type. groupid: ' + socket.tag.meshid);
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socket.end();
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return;
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}
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return 18 + usernameLen + serviceNameLen + methodNameLen + passwordLen;
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}
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case APFProtocol.SERVICE_REQUEST: {
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if (len < 5) return 0;
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var xserviceNameLen = common.ReadInt(data, 1);
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if (len < 5 + xserviceNameLen) return 0;
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var xserviceName = data.substring(5, 5 + xserviceNameLen);
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Debug(3, 'MPS:SERVICE_REQUEST', xserviceName);
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if (xserviceName == "pfwd@amt.intel.com") { SendServiceAccept(socket, "pfwd@amt.intel.com"); }
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if (xserviceName == "auth@amt.intel.com") { SendServiceAccept(socket, "auth@amt.intel.com"); }
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return 5 + xserviceNameLen;
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}
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case APFProtocol.GLOBAL_REQUEST: {
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if (len < 14) return 0;
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var requestLen = common.ReadInt(data, 1);
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if (len < 14 + requestLen) return 0;
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var request = data.substring(5, 5 + requestLen);
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//var wantResponse = data.charCodeAt(5 + requestLen);
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if (request == "tcpip-forward") {
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var addrLen = common.ReadInt(data, 6 + requestLen);
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if (len < 14 + requestLen + addrLen) return 0;
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var addr = data.substring(10 + requestLen, 10 + requestLen + addrLen);
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var port = common.ReadInt(data, 10 + requestLen + addrLen);
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Debug(2, 'MPS:GLOBAL_REQUEST', request, addr + ':' + port);
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ChangeHostname(socket, addr, socket.tag.SystemId);
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if (socket.tag.boundPorts.indexOf(port) == -1) { socket.tag.boundPorts.push(port); }
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SendTcpForwardSuccessReply(socket, port);
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return 14 + requestLen + addrLen;
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}
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if (request == "cancel-tcpip-forward") {
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var addrLen = common.ReadInt(data, 6 + requestLen);
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if (len < 14 + requestLen + addrLen) return 0;
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var addr = data.substring(10 + requestLen, 10 + requestLen + addrLen);
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var port = common.ReadInt(data, 10 + requestLen + addrLen);
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Debug(2, 'MPS:GLOBAL_REQUEST', request, addr + ':' + port);
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var portindex = socket.tag.boundPorts.indexOf(port);
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if (portindex >= 0) { socket.tag.boundPorts.splice(portindex, 1); }
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SendTcpForwardCancelReply(socket);
|
|
return 14 + requestLen + addrLen;
|
|
}
|
|
|
|
if (request == "udp-send-to@amt.intel.com") {
|
|
var addrLen = common.ReadInt(data, 6 + requestLen);
|
|
if (len < 26 + requestLen + addrLen) return 0;
|
|
var addr = data.substring(10 + requestLen, 10 + requestLen + addrLen);
|
|
var port = common.ReadInt(data, 10 + requestLen + addrLen);
|
|
var oaddrLen = common.ReadInt(data, 14 + requestLen + addrLen);
|
|
if (len < 26 + requestLen + addrLen + oaddrLen) return 0;
|
|
var oaddr = data.substring(18 + requestLen, 18 + requestLen + addrLen);
|
|
var oport = common.ReadInt(data, 18 + requestLen + addrLen + oaddrLen);
|
|
var datalen = common.ReadInt(data, 22 + requestLen + addrLen + oaddrLen);
|
|
if (len < 26 + requestLen + addrLen + oaddrLen + datalen) return 0;
|
|
Debug(2, 'MPS:GLOBAL_REQUEST', request, addr + ':' + port, oaddr + ':' + oport, datalen);
|
|
// TODO
|
|
return 26 + requestLen + addrLen + oaddrLen + datalen;
|
|
}
|
|
|
|
return 6 + requestLen;
|
|
}
|
|
case APFProtocol.CHANNEL_OPEN: {
|
|
if (len < 33) return 0;
|
|
var ChannelTypeLength = common.ReadInt(data, 1);
|
|
if (len < (33 + ChannelTypeLength)) return 0;
|
|
|
|
// Decode channel identifiers and window size
|
|
var ChannelType = data.substring(5, 5 + ChannelTypeLength);
|
|
var SenderChannel = common.ReadInt(data, 5 + ChannelTypeLength);
|
|
var WindowSize = common.ReadInt(data, 9 + ChannelTypeLength);
|
|
|
|
// Decode the target
|
|
var TargetLen = common.ReadInt(data, 17 + ChannelTypeLength);
|
|
if (len < (33 + ChannelTypeLength + TargetLen)) return 0;
|
|
var Target = data.substring(21 + ChannelTypeLength, 21 + ChannelTypeLength + TargetLen);
|
|
var TargetPort = common.ReadInt(data, 21 + ChannelTypeLength + TargetLen);
|
|
|
|
// Decode the source
|
|
var SourceLen = common.ReadInt(data, 25 + ChannelTypeLength + TargetLen);
|
|
if (len < (33 + ChannelTypeLength + TargetLen + SourceLen)) return 0;
|
|
var Source = data.substring(29 + ChannelTypeLength + TargetLen, 29 + ChannelTypeLength + TargetLen + SourceLen);
|
|
var SourcePort = common.ReadInt(data, 29 + ChannelTypeLength + TargetLen + SourceLen);
|
|
|
|
Debug(3, 'MPS:CHANNEL_OPEN', ChannelType, SenderChannel, WindowSize, Target + ':' + TargetPort, Source + ':' + SourcePort);
|
|
|
|
// Check if we understand this channel type
|
|
//if (ChannelType.toLowerCase() == "direct-tcpip")
|
|
{
|
|
// We don't understand this channel type, send an error back
|
|
SendChannelOpenFailure(socket, SenderChannel, APFChannelOpenFailureReasonCode.UnknownChannelType);
|
|
return 33 + ChannelTypeLength + TargetLen + SourceLen;
|
|
}
|
|
|
|
/*
|
|
// This is a correct connection. Lets get it setup
|
|
var MeshAmtEventEndpoint = { ServerChannel: GetNextBindId(), AmtChannel: SenderChannel, MaxWindowSize: 2048, CurrentWindowSize:2048, SendWindow: WindowSize, InfoHeader: "Target: " + Target + ":" + TargetPort + ", Source: " + Source + ":" + SourcePort};
|
|
// TODO: Connect this socket for a WSMAN event
|
|
SendChannelOpenConfirmation(socket, SenderChannel, MeshAmtEventEndpoint.ServerChannel, MeshAmtEventEndpoint.MaxWindowSize);
|
|
*/
|
|
|
|
return 33 + ChannelTypeLength + TargetLen + SourceLen;
|
|
}
|
|
case APFProtocol.CHANNEL_OPEN_CONFIRMATION:
|
|
{
|
|
if (len < 17) return 0;
|
|
var RecipientChannel = common.ReadInt(data, 1);
|
|
var SenderChannel = common.ReadInt(data, 5);
|
|
var WindowSize = common.ReadInt(data, 9);
|
|
socket.tag.activetunnels++;
|
|
var cirachannel = socket.tag.channels[RecipientChannel];
|
|
if (cirachannel == null) { /*console.log("MPS Error in CHANNEL_OPEN_CONFIRMATION: Unable to find channelid " + RecipientChannel);*/ return 17; }
|
|
cirachannel.amtchannelid = SenderChannel;
|
|
cirachannel.sendcredits = cirachannel.amtCiraWindow = WindowSize;
|
|
Debug(3, 'MPS:CHANNEL_OPEN_CONFIRMATION', RecipientChannel, SenderChannel, WindowSize);
|
|
if (cirachannel.closing == 1) {
|
|
// Close this channel
|
|
SendChannelClose(cirachannel.socket, cirachannel.amtchannelid);
|
|
} else {
|
|
cirachannel.state = 2;
|
|
// Send any pending data
|
|
if (cirachannel.sendBuffer != null) {
|
|
if (cirachannel.sendBuffer.length <= cirachannel.sendcredits) {
|
|
// Send the entire pending buffer
|
|
SendChannelData(cirachannel.socket, cirachannel.amtchannelid, cirachannel.sendBuffer);
|
|
cirachannel.sendcredits -= cirachannel.sendBuffer.length;
|
|
delete cirachannel.sendBuffer;
|
|
if (cirachannel.onSendOk) { cirachannel.onSendOk(cirachannel); }
|
|
} else {
|
|
// Send a part of the pending buffer
|
|
SendChannelData(cirachannel.socket, cirachannel.amtchannelid, cirachannel.sendBuffer.substring(0, cirachannel.sendcredits));
|
|
cirachannel.sendBuffer = cirachannel.sendBuffer.substring(cirachannel.sendcredits);
|
|
cirachannel.sendcredits = 0;
|
|
}
|
|
}
|
|
// Indicate the channel is open
|
|
if (cirachannel.onStateChange) { cirachannel.onStateChange(cirachannel, cirachannel.state); }
|
|
}
|
|
return 17;
|
|
}
|
|
case APFProtocol.CHANNEL_OPEN_FAILURE:
|
|
{
|
|
if (len < 17) return 0;
|
|
var RecipientChannel = common.ReadInt(data, 1);
|
|
var ReasonCode = common.ReadInt(data, 5);
|
|
Debug(3, 'MPS:CHANNEL_OPEN_FAILURE', RecipientChannel, ReasonCode);
|
|
var cirachannel = socket.tag.channels[RecipientChannel];
|
|
if (cirachannel == null) { console.log("MPS Error in CHANNEL_OPEN_FAILURE: Unable to find channelid " + RecipientChannel); return 17; }
|
|
if (cirachannel.state > 0) {
|
|
cirachannel.state = 0;
|
|
if (cirachannel.onStateChange) { cirachannel.onStateChange(cirachannel, cirachannel.state); }
|
|
delete socket.tag.channels[RecipientChannel];
|
|
}
|
|
return 17;
|
|
}
|
|
case APFProtocol.CHANNEL_CLOSE:
|
|
{
|
|
if (len < 5) return 0;
|
|
var RecipientChannel = common.ReadInt(data, 1);
|
|
Debug(3, 'MPS:CHANNEL_CLOSE', RecipientChannel);
|
|
var cirachannel = socket.tag.channels[RecipientChannel];
|
|
if (cirachannel == null) { console.log("MPS Error in CHANNEL_CLOSE: Unable to find channelid " + RecipientChannel); return 5; }
|
|
socket.tag.activetunnels--;
|
|
if (cirachannel.state > 0) {
|
|
cirachannel.state = 0;
|
|
if (cirachannel.onStateChange) { cirachannel.onStateChange(cirachannel, cirachannel.state); }
|
|
delete socket.tag.channels[RecipientChannel];
|
|
}
|
|
return 5;
|
|
}
|
|
case APFProtocol.CHANNEL_WINDOW_ADJUST:
|
|
{
|
|
if (len < 9) return 0;
|
|
var RecipientChannel = common.ReadInt(data, 1);
|
|
var ByteToAdd = common.ReadInt(data, 5);
|
|
var cirachannel = socket.tag.channels[RecipientChannel];
|
|
if (cirachannel == null) { console.log("MPS Error in CHANNEL_WINDOW_ADJUST: Unable to find channelid " + RecipientChannel); return 9; }
|
|
cirachannel.sendcredits += ByteToAdd;
|
|
Debug(3, 'MPS:CHANNEL_WINDOW_ADJUST', RecipientChannel, ByteToAdd, cirachannel.sendcredits);
|
|
if (cirachannel.state == 2 && cirachannel.sendBuffer != null) {
|
|
// Compute how much data we can send
|
|
if (cirachannel.sendBuffer.length <= cirachannel.sendcredits) {
|
|
// Send the entire pending buffer
|
|
SendChannelData(cirachannel.socket, cirachannel.amtchannelid, cirachannel.sendBuffer);
|
|
cirachannel.sendcredits -= cirachannel.sendBuffer.length;
|
|
delete cirachannel.sendBuffer;
|
|
if (cirachannel.onSendOk) { cirachannel.onSendOk(cirachannel); }
|
|
} else {
|
|
// Send a part of the pending buffer
|
|
SendChannelData(cirachannel.socket, cirachannel.amtchannelid, cirachannel.sendBuffer.substring(0, cirachannel.sendcredits));
|
|
cirachannel.sendBuffer = cirachannel.sendBuffer.substring(cirachannel.sendcredits);
|
|
cirachannel.sendcredits = 0;
|
|
}
|
|
}
|
|
return 9;
|
|
}
|
|
case APFProtocol.CHANNEL_DATA:
|
|
{
|
|
if (len < 9) return 0;
|
|
var RecipientChannel = common.ReadInt(data, 1);
|
|
var LengthOfData = common.ReadInt(data, 5);
|
|
if (len < (9 + LengthOfData)) return 0;
|
|
Debug(4, 'MPS:CHANNEL_DATA', RecipientChannel, LengthOfData);
|
|
var cirachannel = socket.tag.channels[RecipientChannel];
|
|
if (cirachannel == null) { console.log("MPS Error in CHANNEL_DATA: Unable to find channelid " + RecipientChannel); return 9 + LengthOfData; }
|
|
cirachannel.amtpendingcredits += LengthOfData;
|
|
if (cirachannel.onData) cirachannel.onData(cirachannel, data.substring(9, 9 + LengthOfData));
|
|
if (cirachannel.amtpendingcredits > (cirachannel.ciraWindow / 2)) {
|
|
SendChannelWindowAdjust(cirachannel.socket, cirachannel.amtchannelid, cirachannel.amtpendingcredits); // Adjust the buffer window
|
|
cirachannel.amtpendingcredits = 0;
|
|
}
|
|
return 9 + LengthOfData;
|
|
}
|
|
case APFProtocol.DISCONNECT:
|
|
{
|
|
if (len < 7) return 0;
|
|
var ReasonCode = common.ReadInt(data, 1);
|
|
Debug(3, 'MPS:DISCONNECT', ReasonCode);
|
|
try { delete obj.ciraConnections[socket.tag.nodeid]; } catch (e) { }
|
|
obj.parent.ClearConnectivityState(socket.tag.meshid, socket.tag.nodeid, 2);
|
|
return 7;
|
|
}
|
|
default:
|
|
{
|
|
Debug(1, 'MPS:Unknown CIRA command: ' + cmd);
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
socket.addListener("close", function () {
|
|
Debug(1, 'MPS:CIRA connection closed');
|
|
try { delete obj.ciraConnections[socket.tag.nodeid]; } catch (e) { }
|
|
obj.parent.ClearConnectivityState(socket.tag.meshid, socket.tag.nodeid, 2);
|
|
});
|
|
|
|
socket.addListener("error", function () {
|
|
//console.log("MPS Error: " + socket.remoteAddress);
|
|
});
|
|
|
|
}
|
|
|
|
// Disconnect CIRA tunnel
|
|
obj.close = function (socket) {
|
|
try { socket.end(); } catch (e) { }
|
|
try { delete obj.ciraConnections[socket.tag.nodeid]; } catch (e) { }
|
|
obj.parent.ClearConnectivityState(socket.tag.meshid, socket.tag.nodeid, 2);
|
|
};
|
|
|
|
function SendServiceAccept(socket, service) {
|
|
Write(socket, String.fromCharCode(APFProtocol.SERVICE_ACCEPT) + common.IntToStr(service.length) + service);
|
|
}
|
|
|
|
function SendTcpForwardSuccessReply(socket, port) {
|
|
Write(socket, String.fromCharCode(APFProtocol.REQUEST_SUCCESS) + common.IntToStr(port));
|
|
}
|
|
|
|
function SendTcpForwardCancelReply(socket) {
|
|
Write(socket, String.fromCharCode(APFProtocol.REQUEST_SUCCESS));
|
|
}
|
|
|
|
/*
|
|
function SendKeepAliveRequest(socket, cookie) {
|
|
Write(socket, String.fromCharCode(APFProtocol.KEEPALIVE_REQUEST) + common.IntToStr(cookie));
|
|
}
|
|
*/
|
|
|
|
function SendKeepAliveReply(socket, cookie) {
|
|
Write(socket, String.fromCharCode(APFProtocol.KEEPALIVE_REPLY) + common.IntToStr(cookie));
|
|
}
|
|
|
|
function SendChannelOpenFailure(socket, senderChannel, reasonCode) {
|
|
Write(socket, String.fromCharCode(APFProtocol.CHANNEL_OPEN_FAILURE) + common.IntToStr(senderChannel) + common.IntToStr(reasonCode) + common.IntToStr(0) + common.IntToStr(0));
|
|
}
|
|
|
|
/*
|
|
function SendChannelOpenConfirmation(socket, recipientChannelId, senderChannelId, initialWindowSize) {
|
|
Write(socket, String.fromCharCode(APFProtocol.CHANNEL_OPEN_CONFIRMATION) + common.IntToStr(recipientChannelId) + common.IntToStr(senderChannelId) + common.IntToStr(initialWindowSize) + common.IntToStr(-1));
|
|
}
|
|
*/
|
|
|
|
function SendChannelOpen(socket, direct, channelid, windowsize, target, targetport, source, sourceport) {
|
|
var connectionType = ((direct == true) ? "direct-tcpip" : "forwarded-tcpip");
|
|
if ((target == null) || (target == null)) target = ''; // TODO: Reports of target being undefined that causes target.length to fail. This is a hack.
|
|
Write(socket, String.fromCharCode(APFProtocol.CHANNEL_OPEN) + common.IntToStr(connectionType.length) + connectionType + common.IntToStr(channelid) + common.IntToStr(windowsize) + common.IntToStr(-1) + common.IntToStr(target.length) + target + common.IntToStr(targetport) + common.IntToStr(source.length) + source + common.IntToStr(sourceport));
|
|
}
|
|
|
|
function SendChannelClose(socket, channelid) {
|
|
Write(socket, String.fromCharCode(APFProtocol.CHANNEL_CLOSE) + common.IntToStr(channelid));
|
|
}
|
|
|
|
function SendChannelData(socket, channelid, data) {
|
|
Write(socket, String.fromCharCode(APFProtocol.CHANNEL_DATA) + common.IntToStr(channelid) + common.IntToStr(data.length) + data);
|
|
}
|
|
|
|
function SendChannelWindowAdjust(socket, channelid, bytestoadd) {
|
|
Debug(3, 'MPS:SendChannelWindowAdjust', channelid, bytestoadd);
|
|
Write(socket, String.fromCharCode(APFProtocol.CHANNEL_WINDOW_ADJUST) + common.IntToStr(channelid) + common.IntToStr(bytestoadd));
|
|
}
|
|
|
|
/*
|
|
function SendDisconnect(socket, reasonCode) {
|
|
Write(socket, String.fromCharCode(APFProtocol.DISCONNECT) + common.IntToStr(reasonCode) + common.ShortToStr(0));
|
|
}
|
|
*/
|
|
|
|
function SendUserAuthFail(socket) {
|
|
Write(socket, String.fromCharCode(APFProtocol.USERAUTH_FAILURE) + common.IntToStr(8) + 'password' + common.ShortToStr(0));
|
|
}
|
|
|
|
function SendUserAuthSuccess(socket) {
|
|
Write(socket, String.fromCharCode(APFProtocol.USERAUTH_SUCCESS));
|
|
}
|
|
|
|
function Write(socket, data) {
|
|
if (args.mpsdebug) {
|
|
// Print out sent bytes
|
|
var buf = Buffer.from(data, "binary");
|
|
console.log('MPS --> (' + buf.length + '):' + buf.toString('hex'));
|
|
socket.write(buf);
|
|
} else {
|
|
socket.write(Buffer.from(data, "binary"));
|
|
}
|
|
}
|
|
|
|
obj.SetupCiraChannel = function (socket, targetport) {
|
|
var sourceport = (socket.tag.nextsourceport++ % 30000) + 1024;
|
|
var cirachannel = { targetport: targetport, channelid: socket.tag.nextchannelid++, socket: socket, state: 1, sendcredits: 0, amtpendingcredits: 0, amtCiraWindow: 0, ciraWindow: 32768 };
|
|
SendChannelOpen(socket, false, cirachannel.channelid, cirachannel.ciraWindow, socket.tag.host, targetport, "1.2.3.4", sourceport);
|
|
|
|
// This function writes data to this CIRA channel
|
|
cirachannel.write = function (data) {
|
|
if (cirachannel.state == 0) return false;
|
|
if (cirachannel.state == 1 || cirachannel.sendcredits == 0 || cirachannel.sendBuffer != null) {
|
|
// Channel is connected, but we are out of credits. Add the data to the outbound buffer.
|
|
if (cirachannel.sendBuffer == null) { cirachannel.sendBuffer = data; } else { cirachannel.sendBuffer += data; }
|
|
return true;
|
|
}
|
|
// Compute how much data we can send
|
|
if (data.length <= cirachannel.sendcredits) {
|
|
// Send the entire message
|
|
SendChannelData(cirachannel.socket, cirachannel.amtchannelid, data);
|
|
cirachannel.sendcredits -= data.length;
|
|
return true;
|
|
}
|
|
// Send a part of the message
|
|
cirachannel.sendBuffer = data.substring(cirachannel.sendcredits);
|
|
SendChannelData(cirachannel.socket, cirachannel.amtchannelid, data.substring(0, cirachannel.sendcredits));
|
|
cirachannel.sendcredits = 0;
|
|
return false;
|
|
};
|
|
|
|
// This function closes this CIRA channel
|
|
cirachannel.close = function () {
|
|
if (cirachannel.state == 0 || cirachannel.closing == 1) return;
|
|
if (cirachannel.state == 1) { cirachannel.closing = 1; cirachannel.state = 0; if (cirachannel.onStateChange) { cirachannel.onStateChange(cirachannel, cirachannel.state); } return; }
|
|
cirachannel.state = 0;
|
|
cirachannel.closing = 1;
|
|
SendChannelClose(cirachannel.socket, cirachannel.amtchannelid);
|
|
if (cirachannel.onStateChange) { cirachannel.onStateChange(cirachannel, cirachannel.state); }
|
|
};
|
|
|
|
socket.tag.channels[cirachannel.channelid] = cirachannel;
|
|
return cirachannel;
|
|
};
|
|
|
|
function ChangeHostname(socket, host, systemid) {
|
|
if (socket.tag.host === host) return; // Nothing to change
|
|
socket.tag.host = host;
|
|
|
|
// Change the device
|
|
obj.db.Get(socket.tag.nodeid, function (err, nodes) {
|
|
if (nodes.length != 1) return;
|
|
var node = nodes[0];
|
|
|
|
// See if any changes need to be made
|
|
if ((node.intelamt != null) && (node.intelamt.host == host) && (node.name != null) && (node.name != '') && (node.intelamt.state == 2)) return;
|
|
|
|
// Get the mesh for this device
|
|
obj.db.Get(node.meshid, function (err, meshes) {
|
|
if (meshes.length != 1) return;
|
|
var mesh = meshes[0];
|
|
|
|
// Ready the node change event
|
|
var changes = ['host'], event = { etype: 'node', action: 'changenode', nodeid: node._id };
|
|
event.msg = +": ";
|
|
|
|
// Make the change & save
|
|
if (node.intelamt == null) node.intelamt = {};
|
|
node.intelamt.host = host;
|
|
node.intelamt.state = 2; // Set the state to activated, since this is pretty obvious, we have a CIRA connection.
|
|
if (((node.name == null) || (node.name == '')) && (host != null) && (host != '')) { node.name = host.split('.')[0]; } // If this system has no name, set it to the start of the domain name.
|
|
if (((node.name == null) || (node.name == '')) && (systemid != null)) { node.name = systemid; } // If this system still has no name, set it to the system GUID.
|
|
obj.db.Set(node);
|
|
|
|
// Event the node change
|
|
event.msg = 'CIRA changed device ' + node.name + ' from group ' + mesh.name + ': ' + changes.join(', ');
|
|
var node2 = common.Clone(node);
|
|
if (node2.intelamt && node2.intelamt.pass) delete node2.intelamt.pass; // Remove the Intel AMT password before eventing this.
|
|
event.node = node2;
|
|
obj.parent.DispatchEvent(['*', node.meshid], obj, event);
|
|
});
|
|
});
|
|
}
|
|
|
|
function guidToStr(g) { return g.substring(6, 8) + g.substring(4, 6) + g.substring(2, 4) + g.substring(0, 2) + "-" + g.substring(10, 12) + g.substring(8, 10) + "-" + g.substring(14, 16) + g.substring(12, 14) + "-" + g.substring(16, 20) + "-" + g.substring(20); }
|
|
|
|
// Debug
|
|
function Debug(lvl) {
|
|
if (lvl > obj.parent.debugLevel) return;
|
|
if (arguments.length == 2) { console.log(arguments[1]); }
|
|
else if (arguments.length == 3) { console.log(arguments[1], arguments[2]); }
|
|
else if (arguments.length == 4) { console.log(arguments[1], arguments[2], arguments[3]); }
|
|
else if (arguments.length == 5) { console.log(arguments[1], arguments[2], arguments[3], arguments[4]); }
|
|
else if (arguments.length == 6) { console.log(arguments[1], arguments[2], arguments[3], arguments[4], arguments[5]); }
|
|
else if (arguments.length == 7) { console.log(arguments[1], arguments[2], arguments[3], arguments[4], arguments[5], arguments[6]); }
|
|
}
|
|
|
|
return obj;
|
|
};
|