forked from Ylianst/MeshCentral
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathmpsserver.js
1336 lines (1218 loc) · 79.3 KB
/
mpsserver.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/**
* @description MeshCentral Intel(R) AMT MPS server
* @author Ylian Saint-Hilaire
* @copyright Intel Corporation 2018-2021
* @license Apache-2.0
* @version v0.0.1
*/
/*jslint node: true */
/*jshint node: true */
/*jshint strict:false */
/*jshint -W097 */
/*jshint esversion: 6 */
'use strict';
// Construct a Intel AMT MPS server object
module.exports.CreateMpsServer = function (parent, db, args, certificates) {
var obj = {};
obj.fs = require('fs');
obj.path = require('path');
obj.parent = parent;
obj.db = db;
obj.args = args;
obj.certificates = certificates;
obj.ciraConnections = {}; // NodeID --> [ Socket ]
var tlsSessionStore = {}; // Store TLS session information for quick resume.
var tlsSessionStoreCount = 0; // Number of cached TLS session information in store.
const constants = (require('crypto').constants ? require('crypto').constants : require('constants')); // require('constants') is deprecated in Node 11.10, use require('crypto').constants instead.
const common = require('./common.js');
const net = require('net');
const tls = require('tls');
const MAX_IDLE = 90000; // 90 seconds max idle time, higher than the typical KEEP-ALIVE periode of 60 seconds
// This MPS server is also a tiny HTTPS server. HTTP responses are here.
obj.httpResponses = {
'/': '<!DOCTYPE html><html><head><meta charset=\"UTF-8\"></head><body>MeshCentral MPS server.<br />Intel® AMT computers should connect here.</body></html>'
//'/text.ico': { file: 'c:\\temp\\test.iso', maxserve: 3, maxtime: Date.now() + 15000 }
};
// Set the MPS external port only if it's not set to zero and we are not in LAN mode.
if ((args.lanonly != true) && (args.mpsport !== 0)) {
if (obj.args.mpstlsoffload) {
obj.server = net.createServer(onConnection);
} else {
// Note that in order to support older Intel AMT CIRA connections, we have to turn on TLSv1.
obj.server = tls.createServer({ key: certificates.mps.key, cert: certificates.mps.cert, minVersion: 'TLSv1', 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);
//obj.server.on('error', function () { console.log('MPS tls server error'); });
obj.server.on('newSession', function (id, data, cb) { if (tlsSessionStoreCount > 1000) { tlsSessionStoreCount = 0; tlsSessionStore = {}; } tlsSessionStore[id.toString('hex')] = data; tlsSessionStoreCount++; cb(); });
obj.server.on('resumeSession', function (id, cb) { cb(null, tlsSessionStore[id.toString('hex')] || null); });
}
obj.server.listen(args.mpsport, args.mpsportbind, function () {
console.log("MeshCentral Intel(R) AMT server running on " + certificates.AmtMpsName + ":" + args.mpsport + ((args.mpsaliasport != null) ? (", alias port " + args.mpsaliasport) : "") + ".");
obj.parent.authLog('mps', 'Server listening on ' + ((args.mpsportbind != null) ? args.mpsportbind : '0.0.0.0') + ' port ' + args.mpsport + '.');
}).on("error", function (err) { console.error("ERROR: MeshCentral Intel(R) AMT server port " + args.mpsport + " is not available."); if (args.exactports) { process.exit(); } });
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 + '.'); } });
}
obj.parent.updateServerState('mps-port', args.mpsport);
obj.parent.updateServerState('mps-name', certificates.AmtMpsName);
if (args.mpsaliasport != null) { obj.parent.updateServerState('mps-alias-port', args.mpsaliasport); }
const APFProtocol = {
UNKNOWN: 0,
DISCONNECT: 1,
SERVICE_REQUEST: 5,
SERVICE_ACCEPT: 6,
USERAUTH_REQUEST: 50,
USERAUTH_FAILURE: 51,
USERAUTH_SUCCESS: 52,
GLOBAL_REQUEST: 80,
REQUEST_SUCCESS: 81,
REQUEST_FAILURE: 82,
CHANNEL_OPEN: 90,
CHANNEL_OPEN_CONFIRMATION: 91,
CHANNEL_OPEN_FAILURE: 92,
CHANNEL_WINDOW_ADJUST: 93,
CHANNEL_DATA: 94,
CHANNEL_CLOSE: 97,
PROTOCOLVERSION: 192,
KEEPALIVE_REQUEST: 208,
KEEPALIVE_REPLY: 209,
KEEPALIVE_OPTIONS_REQUEST: 210,
KEEPALIVE_OPTIONS_REPLY: 211,
JSON_CONTROL: 250 // This is a Mesh specific command that sends JSON to and from the MPS server.
};
/*
const APFDisconnectCode = {
HOST_NOT_ALLOWED_TO_CONNECT: 1,
PROTOCOL_ERROR: 2,
KEY_EXCHANGE_FAILED: 3,
RESERVED: 4,
MAC_ERROR: 5,
COMPRESSION_ERROR: 6,
SERVICE_NOT_AVAILABLE: 7,
PROTOCOL_VERSION_NOT_SUPPORTED: 8,
HOST_KEY_NOT_VERIFIABLE: 9,
CONNECTION_LOST: 10,
BY_APPLICATION: 11,
TOO_MANY_CONNECTIONS: 12,
AUTH_CANCELLED_BY_USER: 13,
NO_MORE_AUTH_METHODS_AVAILABLE: 14,
INVALID_CREDENTIALS: 15,
CONNECTION_TIMED_OUT: 16,
BY_POLICY: 17,
TEMPORARILY_UNAVAILABLE: 18
};
const APFChannelOpenFailCodes = {
ADMINISTRATIVELY_PROHIBITED: 1,
CONNECT_FAILED: 2,
UNKNOWN_CHANNEL_TYPE: 3,
RESOURCE_SHORTAGE: 4,
};
*/
const APFChannelOpenFailureReasonCode = {
AdministrativelyProhibited: 1,
ConnectFailed: 2,
UnknownChannelType: 3,
ResourceShortage: 4,
};
// Stat counters
var connectionCount = 0;
var userAuthRequestCount = 0;
var incorrectPasswordCount = 0;
var meshNotFoundCount = 0;
var unknownTlsNodeCount = 0;
var unknownTlsMeshIdCount = 0;
var addedTlsDeviceCount = 0;
var unknownNodeCount = 0;
var unknownMeshIdCount = 0;
var addedDeviceCount = 0;
var ciraTimeoutCount = 0;
var protocolVersionCount = 0;
var badUserNameLengthCount = 0;
var channelOpenCount = 0;
var channelOpenConfirmCount = 0;
var channelOpenFailCount = 0;
var channelCloseCount = 0;
var disconnectCommandCount = 0;
var socketClosedCount = 0;
var socketErrorCount = 0;
var maxDomainDevicesReached = 0;
// Add a CIRA connection to the connection list
function addCiraConnection(socket) {
// Check if there is already a connection of the same type
var sameType = false, connections = obj.ciraConnections[socket.tag.nodeid];
if (connections != null) { for (var i in connections) { var conn = connections[i]; if (conn.tag.connType === socket.tag.connType) { sameType = true; } } }
// Add this connection to the connections list
if (connections == null) { obj.ciraConnections[socket.tag.nodeid] = [socket]; } else { obj.ciraConnections[socket.tag.nodeid].push(socket); }
// Update connectivity state
// Report the new state of a CIRA/Relay/LMS connection after a short delay. This is to wait for the connection to have the bounded ports setup before we advertise this new connection.
socket.xxStartHold = 1;
var f = function setConnFunc() {
delete setConnFunc.socket.xxStartHold;
const ciraArray = obj.ciraConnections[setConnFunc.socket.tag.nodeid];
if ((ciraArray != null) && ((ciraArray.indexOf(setConnFunc.socket) >= 0))) { // Check if this connection is still present
if (setConnFunc.socket.tag.connType == 0) {
// Intel AMT CIRA connection. This connection indicates the remote device is present.
obj.parent.SetConnectivityState(setConnFunc.socket.tag.meshid, setConnFunc.socket.tag.nodeid, setConnFunc.socket.tag.connectTime, 2, 7); // 7 = Present
} else if (setConnFunc.socket.tag.connType == 1) {
// Intel AMT Relay connection. This connection does not give any information about the remote device's power state.
obj.parent.SetConnectivityState(setConnFunc.socket.tag.meshid, setConnFunc.socket.tag.nodeid, setConnFunc.socket.tag.connectTime, 8, 0); // 0 = Unknown
}
// Intel AMT LMS connection (connType == 2), we don't notify of these connections except telling the Intel AMT manager about them.
// If the AMT manager is present, start management of this device
if (obj.parent.amtManager != null) { obj.parent.amtManager.startAmtManagement(setConnFunc.socket.tag.nodeid, setConnFunc.socket.tag.connType, setConnFunc.socket); }
}
}
f.socket = socket;
setTimeout(f, 300);
}
// Remove a CIRA connection from the connection list
function removeCiraConnection(socket) {
// If the AMT manager is present, stop management of this device
if (obj.parent.amtManager != null) { obj.parent.amtManager.stopAmtManagement(socket.tag.nodeid, socket.tag.connType, socket); }
// Remove the connection from the list if present.
const ciraArray = obj.ciraConnections[socket.tag.nodeid];
if (ciraArray == null) return;
var i = ciraArray.indexOf(socket);
if (i == -1) return;
ciraArray.splice(i, 1);
if (ciraArray.length == 0) { delete obj.ciraConnections[socket.tag.nodeid]; } else { obj.ciraConnections[socket.tag.nodeid] = ciraArray; }
// If we are removing a connection during the hold period, don't clear any state since it was never set.
if (socket.xxStartHold == 1) return;
// Check if there is already a connection of the same type
var sameType = false, connections = obj.ciraConnections[socket.tag.nodeid];
if (connections != null) { for (var i in connections) { var conn = connections[i]; if (conn.tag.connType === socket.tag.connType) { sameType = true; } } }
if (sameType == true) return; // if there is a connection of the same type, don't change the connection state.
// Update connectivity state
if (socket.tag.connType == 0) {
obj.parent.ClearConnectivityState(socket.tag.meshid, socket.tag.nodeid, 2); // CIRA
} else if (socket.tag.connType == 1) {
obj.parent.ClearConnectivityState(socket.tag.meshid, socket.tag.nodeid, 8); // Relay
}
}
// Return statistics about this MPS server
obj.getStats = function () {
var ciraConnectionCount = 0;
for (var i in obj.ciraConnections) { ciraConnectionCount += obj.ciraConnections[i].length; }
return {
ciraConnections: ciraConnectionCount,
tlsSessionStore: Object.keys(tlsSessionStore).length,
connectionCount: connectionCount,
userAuthRequestCount: userAuthRequestCount,
incorrectPasswordCount: incorrectPasswordCount,
meshNotFoundCount: meshNotFoundCount,
unknownTlsNodeCount: unknownTlsNodeCount,
unknownTlsMeshIdCount: unknownTlsMeshIdCount,
addedTlsDeviceCount: addedTlsDeviceCount,
unknownNodeCount: unknownNodeCount,
unknownMeshIdCount: unknownMeshIdCount,
addedDeviceCount: addedDeviceCount,
ciraTimeoutCount: ciraTimeoutCount,
protocolVersionCount: protocolVersionCount,
badUserNameLengthCount: badUserNameLengthCount,
channelOpenCount: channelOpenCount,
channelOpenConfirmCount: channelOpenConfirmCount,
channelOpenFailCount: channelOpenFailCount,
channelCloseCount: channelCloseCount,
disconnectCommandCount: disconnectCommandCount,
socketClosedCount: socketClosedCount,
socketErrorCount: socketErrorCount,
maxDomainDevicesReached: maxDomainDevicesReached
};
}
// Required for TLS piping to MQTT broker
function SerialTunnel(options) {
var obj = new require('stream').Duplex(options);
obj.forwardwrite = null;
obj.updateBuffer = function (chunk) { this.push(chunk); };
obj._write = function (chunk, encoding, callback) { if (obj.forwardwrite != null) { obj.forwardwrite(chunk); } else { console.err("Failed to fwd _write."); } if (callback) callback(); }; // Pass data written to forward
obj._read = function (size) { }; // Push nothing, anything to read should be pushed from updateBuffer()
return obj;
}
// Return's the length of an MQTT packet
function getMQTTPacketLength(chunk) {
var packet_len = 0;
if (chunk.readUInt8(0) == 16) {
if (chunk.readUInt8(1) < 128) {
packet_len += chunk.readUInt8(1) + 2;
} else {
// continuation bit, get real value and do next
packet_len += (chunk.readUInt8(1) & 0x7F) + 2;
if (chunk.readUInt8(2) < 128) {
packet_len += 1 + chunk.readUInt8(2) * 128;
} else {
packet_len += 1 + (chunk.readUInt8(2) & 0x7F) * 128;
if (chunk.readUInt8(3) < 128) {
packet_len += 1 + chunk.readUInt8(3) * 128 * 128;
} else {
packet_len += 1 + (chunk.readUInt8(3) & 0x7F) * 128 * 128;
if (chunk.readUInt8(4) < 128) {
packet_len += 1 + chunk.readUInt8(4) * 128 * 128 * 128;
} else {
packet_len += 1 + (chunk.readUInt8(4) & 0x7F) * 128 * 128 * 128;
}
}
}
}
}
return packet_len;
}
obj.onWebSocketConnection = function (socket, req) {
connectionCount++;
// connType: 0 = CIRA, 1 = Relay, 2 = LMS
socket.tag = { first: true, connType: 0, clientCert: null, accumulator: '', activetunnels: 0, boundPorts: [], websocket: true, socket: socket, host: null, nextchannelid: 4, channels: {}, nextsourceport: 0 };
socket.SetupChannel = function SetupChannel(targetport) { return SetupChannel.parent.SetupChannel(SetupChannel.conn, targetport); }
socket.SetupChannel.parent = obj;
socket.SetupChannel.conn = socket;
socket.websocket = 1;
socket.ControlMsg = function ControlMsg(message) { return ControlMsg.parent.SendJsonControl(ControlMsg.conn, message); }
socket.ControlMsg.parent = obj;
socket.ControlMsg.conn = socket;
socket.remoteAddr = req.clientIp;
socket.remotePort = socket._socket.remotePort;
socket._socket.bytesReadEx = 0;
socket._socket.bytesWrittenEx = 0;
parent.debug('mps', "New CIRA websocket connection");
socket.on('message', function (data) {
if (args.mpsdebug) { var buf = Buffer.from(data, 'binary'); console.log("MPS <-- (" + buf.length + "):" + buf.toString('hex')); } // Print out received bytes
// Traffic accounting
parent.webserver.trafficStats.LMSIn += (this._socket.bytesRead - this._socket.bytesReadEx);
parent.webserver.trafficStats.LMSOut += (this._socket.bytesWritten - this._socket.bytesWrittenEx);
this._socket.bytesReadEx = this._socket.bytesRead;
this._socket.bytesWrittenEx = this._socket.bytesWritten;
this.tag.accumulator += data.toString('binary'); // Append as binary string
try {
// Parse all of the APF data we can
var l = 0;
do { l = ProcessCommand(this); if (l > 0) { this.tag.accumulator = this.tag.accumulator.substring(l); } } while (l > 0);
if (l < 0) { this.terminate(); }
} catch (e) {
console.log(e);
}
});
socket.addListener('close', function () {
// Traffic accounting
parent.webserver.trafficStats.LMSIn += (this._socket.bytesRead - this._socket.bytesReadEx);
parent.webserver.trafficStats.LMSOut += (this._socket.bytesWritten - this._socket.bytesWrittenEx);
this._socket.bytesReadEx = this._socket.bytesRead;
this._socket.bytesWrittenEx = this._socket.bytesWritten;
socketClosedCount++;
parent.debug('mps', "CIRA websocket closed", this.tag.meshid, this.tag.nodeid);
removeCiraConnection(socket);
});
socket.addListener('error', function (e) {
socketErrorCount++;
parent.debug('mps', "CIRA websocket connection error", e);
});
}
// Called when a new TLS/TCP connection is accepted
function onConnection(socket) {
connectionCount++;
// connType: 0 = CIRA, 1 = Relay, 2 = LMS
if (obj.args.mpstlsoffload) {
socket.tag = { first: true, connType: 0, clientCert: null, accumulator: '', activetunnels: 0, boundPorts: [], socket: socket, host: null, nextchannelid: 4, channels: {}, nextsourceport: 0 };
} else {
socket.tag = { first: true, connType: 0, clientCert: socket.getPeerCertificate(true), accumulator: '', activetunnels: 0, boundPorts: [], socket: socket, host: null, nextchannelid: 4, channels: {}, nextsourceport: 0 };
}
socket.SetupChannel = function SetupChannel(targetport) { return SetupChannel.parent.SetupChannel(SetupChannel.conn, targetport); }
socket.SetupChannel.parent = obj;
socket.SetupChannel.conn = socket;
socket.ControlMsg = function ControlMsg(message) { return ControlMsg.parent.SendJsonControl(ControlMsg.conn, message); }
socket.ControlMsg.parent = obj;
socket.ControlMsg.conn = socket;
socket.bytesReadEx = 0;
socket.bytesWrittenEx = 0;
socket.remoteAddr = cleanRemoteAddr(socket.remoteAddress);
//socket.remotePort is already present, no need to set it.
socket.setEncoding('binary');
parent.debug('mps', "New CIRA connection");
// Setup the CIRA keep alive timer
socket.setTimeout(MAX_IDLE);
socket.on('timeout', () => { ciraTimeoutCount++; parent.debug('mps', "CIRA timeout, disconnecting."); try { socket.end(); } catch (e) { } });
socket.addListener('close', function () {
// Traffic accounting
parent.webserver.trafficStats.CIRAIn += (this.bytesRead - this.bytesReadEx);
parent.webserver.trafficStats.CIRAOut += (this.bytesWritten - this.bytesWrittenEx);
this.bytesReadEx = this.bytesRead;
this.bytesWrittenEx = this.bytesWritten;
socketClosedCount++;
parent.debug('mps', 'CIRA connection closed');
removeCiraConnection(socket);
});
socket.addListener('error', function (e) {
socketErrorCount++;
parent.debug('mps', 'CIRA connection error', e);
//console.log("MPS Error: " + socket.remoteAddress);
});
socket.addListener('data', function (data) {
if (args.mpsdebug) { var buf = Buffer.from(data, 'binary'); console.log("MPS --> (" + buf.length + "):" + buf.toString('hex')); } // Print out received bytes
// Traffic accounting
parent.webserver.trafficStats.CIRAIn += (this.bytesRead - this.bytesReadEx);
parent.webserver.trafficStats.CIRAOut += (this.bytesWritten - this.bytesWrittenEx);
this.bytesReadEx = this.bytesRead;
this.bytesWrittenEx = this.bytesWritten;
socket.tag.accumulator += data;
// 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.
if (socket.tag.first == true) {
if (socket.tag.accumulator.length < 5) return;
//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; }
if ((socket.tag.accumulator.substring(0, 4) == 'GET ') || (socket.tag.accumulator.substring(0, 5) == 'HEAD ')) {
if (args.mpsdebug) { console.log("MPS Connection, HTTP request detected: " + socket.remoteAddress); }
socket.removeAllListeners('data');
socket.removeAllListeners('close');
socket.on('data', onHttpData);
socket.on('close', onHttpClose);
obj.httpSocket = socket;
onHttpData.call(socket, data);
return;
}
// If the MQTT broker is active, look for inbound MQTT connections
if (parent.mqttbroker != null) {
var chunk = Buffer.from(socket.tag.accumulator, 'binary');
var packet_len = 0;
if (chunk.readUInt8(0) == 16) { packet_len = getMQTTPacketLength(chunk); }
if (chunk.readUInt8(0) == 16 && (socket.tag.accumulator.length < packet_len)) return; // Minimum MQTT detection
// check if it is MQTT, need more initial packet to probe
if (chunk.readUInt8(0) == 16 && ((chunk.slice(4, 8).toString() === 'MQTT') || (chunk.slice(5, 9).toString() === 'MQTT')
|| (chunk.slice(6, 10).toString() === 'MQTT') || (chunk.slice(7, 11).toString() === 'MQTT'))) {
parent.debug('mps', "MQTT connection detected.");
socket.removeAllListeners('data');
socket.removeAllListeners('close');
socket.setNoDelay(true);
socket.serialtunnel = SerialTunnel();
socket.serialtunnel.xtransport = 'mps';
socket.serialtunnel.xip = socket.remoteAddress;
socket.on('data', function (b) { socket.serialtunnel.updateBuffer(Buffer.from(b, 'binary')) });
socket.serialtunnel.forwardwrite = function (b) { socket.write(b, 'binary') }
socket.on('close', function () { socket.serialtunnel.emit('end'); });
// Pass socket wrapper to the MQTT broker
parent.mqttbroker.handle(socket.serialtunnel);
socket.unshift(socket.tag.accumulator);
return;
}
}
socket.tag.first = false;
// Setup this node with certificate authentication
if (socket.tag.clientCert && socket.tag.clientCert.subject && socket.tag.clientCert.subject.O && socket.tag.clientCert.subject.O.length == 64) {
// This is a node where the MeshID is indicated within the CIRA certificate
var domainid = '', meshid;
var xx = socket.tag.clientCert.subject.O.split('/');
if (xx.length == 1) { meshid = xx[0]; } else { domainid = xx[0].toLowerCase(); meshid = xx[1]; }
// Check the incoming domain
var domain = obj.parent.config.domains[domainid];
if (domain == null) { console.log('CIRA connection for invalid domain. meshid: ' + meshid); socket.end(); return; }
socket.tag.domain = domain;
socket.tag.domainid = domainid;
socket.tag.meshid = 'mesh/' + domainid + '/' + meshid;
socket.tag.nodeid = 'node/' + domainid + '/' + require('crypto').createHash('sha384').update(common.hex2rstr(socket.tag.clientCert.modulus, 'binary')).digest('base64').replace(/\+/g, '@').replace(/\//g, '$');
socket.tag.name = socket.tag.clientCert.subject.CN;
socket.tag.connectTime = Date.now();
socket.tag.host = '';
// Fetch the node
obj.db.Get(socket.tag.nodeid, function (err, nodes) {
if ((nodes == null) || (nodes.length !== 1)) {
var mesh = obj.parent.webserver.meshes[socket.tag.meshid];
if (mesh == null) {
unknownTlsMeshIdCount++;
console.log('ERROR: Intel AMT CIRA connected with unknown groupid: ' + socket.tag.meshid);
socket.end();
return;
} else if (mesh.mtype == 1) {
// Check if we already have too many devices for this domain
if (domain.limits && (typeof domain.limits.maxdevices == 'number')) {
db.isMaxType(domain.limits.maxdevices, 'node', domain.id, function (ismax, count) {
if (ismax == true) {
// Too many devices in this domain.
maxDomainDevicesReached++;
console.log('Too many devices on this domain to accept the CIRA connection. meshid: ' + socket.tag.meshid);
socket.end();
} else {
// Attempts reverse DNS loopup on the device IP address
require('dns').reverse(socket.remoteAddr, function (err, hostnames) {
var hostname = socket.remoteAddr;
if ((err == null) && (hostnames != null) && (hostnames.length > 0)) { hostname = hostnames[0]; }
// We are under the limit, create the new device.
// Node is not in the database, add it. Credentials will be empty until added by the user.
var device = { type: 'node', mtype: 1, _id: socket.tag.nodeid, meshid: socket.tag.meshid, name: socket.tag.name, icon: (socket.tag.meiState.isBatteryPowered) ? 2 : 1, host: hostname, domain: domainid, intelamt: { user: (typeof socket.tag.meiState.amtuser == 'string') ? socket.tag.meiState.amtuser : '', pass: (typeof socket.tag.meiState.amtpass == 'string') ? socket.tag.meiState.amtpass : '', tls: 0, state: 2 } };
if ((typeof socket.tag.meiState.desc == 'string') && (socket.tag.meiState.desc.length > 0) && (socket.tag.meiState.desc.length < 1024)) { device.desc = socket.tag.meiState.desc; }
obj.db.Set(device);
// Event the new node
addedTlsDeviceCount++;
var change = 'CIRA added device ' + socket.tag.name + ' to mesh ' + mesh.name;
obj.parent.DispatchEvent(['*', socket.tag.meshid], obj, { etype: 'node', action: 'addnode', node: parent.webserver.CloneSafeNode(device), msg: change, domain: domainid });
// Add the connection to the MPS connection list
addCiraConnection(socket);
});
}
});
return;
} else {
// Attempts reverse DNS loopup on the device IP address
require('dns').reverse(socket.remoteAddr, function (err, hostnames) {
var hostname = socket.remoteAddr;
if ((err == null) && (hostnames != null) && (hostnames.length > 0)) { hostname = hostnames[0]; }
// Node is not in the database, add it. Credentials will be empty until added by the user.
var device = { type: 'node', mtype: 1, _id: socket.tag.nodeid, meshid: socket.tag.meshid, name: socket.tag.name, icon: (socket.tag.meiState.isBatteryPowered) ? 2 : 1, host: hostname, domain: domainid, intelamt: { user: (typeof socket.tag.meiState.amtuser == 'string') ? socket.tag.meiState.amtuser : '', pass: (typeof socket.tag.meiState.amtpass == 'string') ? socket.tag.meiState.amtpass : '', tls: 0, state: 2 } };
if ((typeof socket.tag.meiState.desc == 'string') && (socket.tag.meiState.desc.length > 0) && (socket.tag.meiState.desc.length < 1024)) { device.desc = socket.tag.meiState.desc; }
obj.db.Set(device);
// Event the new node
addedTlsDeviceCount++;
var change = 'CIRA added device ' + socket.tag.name + ' to mesh ' + mesh.name;
obj.parent.DispatchEvent(['*', socket.tag.meshid], obj, { etype: 'node', action: 'addnode', node: parent.webserver.CloneSafeNode(device), msg: change, domain: domainid });
});
}
} else {
// New CIRA connection for unknown node, disconnect.
unknownTlsNodeCount++;
console.log('CIRA connection for unknown node with incorrect group type. meshid: ' + socket.tag.meshid);
socket.end();
return;
}
} else {
// Node is already present
var node = nodes[0];
socket.tag.meshid = node.meshid; // Correct the MeshID if the node has moved.
if ((node.intelamt != null) && (node.intelamt.state == 2)) { socket.tag.host = node.intelamt.host; }
}
// Add the connection to the MPS connection list
addCiraConnection(socket);
});
} else {
// This node connected without certificate authentication, use password auth
//console.log('Intel AMT CIRA connected without certificate authentication');
}
}
try {
// Parse all of the APF data we can
var l = 0;
do { l = ProcessCommand(socket); if (l > 0) { socket.tag.accumulator = socket.tag.accumulator.substring(l); } } while (l > 0);
if (l < 0) { socket.end(); }
} catch (e) {
console.log(e);
}
});
}
// Process one APF command
function ProcessCommand(socket) {
var cmd = socket.tag.accumulator.charCodeAt(0);
var len = socket.tag.accumulator.length;
var data = socket.tag.accumulator;
if (len == 0) { return 0; }
switch (cmd) {
case APFProtocol.KEEPALIVE_REQUEST: {
if (len < 5) return 0;
parent.debug('mpscmd', '--> KEEPALIVE_REQUEST');
SendKeepAliveReply(socket, common.ReadInt(data, 1));
return 5;
}
case APFProtocol.KEEPALIVE_REPLY: {
if (len < 5) return 0;
parent.debug('mpscmd', '--> KEEPALIVE_REPLY');
return 5;
}
case APFProtocol.PROTOCOLVERSION: {
if (len < 93) return 0;
protocolVersionCount++;
socket.tag.MajorVersion = common.ReadInt(data, 1);
socket.tag.MinorVersion = common.ReadInt(data, 5);
socket.tag.SystemId = guidToStr(common.rstr2hex(data.substring(13, 29))).toLowerCase();
parent.debug('mpscmd', '--> PROTOCOLVERSION', socket.tag.MajorVersion, socket.tag.MinorVersion, socket.tag.SystemId);
return 93;
}
case APFProtocol.USERAUTH_REQUEST: {
if (len < 13) return 0;
userAuthRequestCount++;
var usernameLen = common.ReadInt(data, 1);
var username = data.substring(5, 5 + usernameLen);
var serviceNameLen = common.ReadInt(data, 5 + usernameLen);
var serviceName = data.substring(9 + usernameLen, 9 + usernameLen + serviceNameLen);
var methodNameLen = common.ReadInt(data, 9 + usernameLen + serviceNameLen);
var methodName = data.substring(13 + usernameLen + serviceNameLen, 13 + usernameLen + serviceNameLen + methodNameLen);
var passwordLen = 0, password = null;
if (methodName == 'password') {
passwordLen = common.ReadInt(data, 14 + usernameLen + serviceNameLen + methodNameLen);
password = data.substring(18 + usernameLen + serviceNameLen + methodNameLen, 18 + usernameLen + serviceNameLen + methodNameLen + passwordLen);
}
//console.log('MPS:USERAUTH_REQUEST user=' + username + ', service=' + serviceName + ', method=' + methodName + ', password=' + password);
parent.debug('mpscmd', '--> USERAUTH_REQUEST user=' + username + ', service=' + serviceName + ', method=' + methodName + ', password=' + password);
// If the login uses a cookie, check this now
if ((username == '**MeshAgentApfTunnel**') && (password != null)) {
const cookie = parent.decodeCookie(password, parent.loginCookieEncryptionKey);
if ((cookie == null) || (cookie.a !== 'apf')) {
incorrectPasswordCount++;
socket.ControlMsg({ action: 'console', msg: 'Invalid login username/password' });
parent.debug('mps', 'Incorrect password', username, password);
SendUserAuthFail(socket);
return -1;
}
if (obj.parent.webserver.meshes[cookie.m] == null) {
meshNotFoundCount++;
socket.ControlMsg({ action: 'console', msg: 'Device group not found' });
parent.debug('mps', 'Device group not found', username, password);
SendUserAuthFail(socket);
return -1;
}
// Setup the connection
socket.tag.nodeid = cookie.n;
socket.tag.meshid = cookie.m;
socket.tag.connectTime = Date.now();
// Add the connection to the MPS connection list
addCiraConnection(socket);
SendUserAuthSuccess(socket); // Notify the auth success on the CIRA connection
return 18 + usernameLen + serviceNameLen + methodNameLen + passwordLen;
} else {
// Check the CIRA password
if ((args.mpspass != null) && (password != args.mpspass)) {
incorrectPasswordCount++;
socket.ControlMsg({ action: 'console', msg: 'Invalid login username/password' });
parent.debug('mps', 'Incorrect password', username, password);
SendUserAuthFail(socket);
return -1;
}
// Check the CIRA username, which should be the start of the MeshID.
if (usernameLen != 16) {
badUserNameLengthCount++;
socket.ControlMsg({ action: 'console', msg: 'Username length not 16' });
parent.debug('mps', 'Username length not 16', username, password);
SendUserAuthFail(socket);
return -1;
}
// Find the device group for this CIRA connection. Since Intel AMT does not allow @ or $ in the username, we escape these.
// For possible for CIRA-LMS connections to still send @ or $, so we need to escape both sides.
var meshIdStart = ('/' + username).replace(/\@/g, 'X').replace(/\$/g, 'X'), mesh = null;
if (obj.parent.webserver.meshes) {
for (var i in obj.parent.webserver.meshes) {
if (obj.parent.webserver.meshes[i]._id.replace(/\@/g, 'X').replace(/\$/g, 'X').indexOf(meshIdStart) > 0) {
mesh = obj.parent.webserver.meshes[i]; break;
}
}
}
if (mesh == null) {
meshNotFoundCount++;
socket.ControlMsg({ action: 'console', msg: 'Device group not found' });
parent.debug('mps', 'Device group not found', username, password);
SendUserAuthFail(socket);
return -1;
}
}
// If this is a agent-less mesh, use the device guid 3 times as ID.
if (mesh.mtype == 1) {
// Intel AMT GUID (socket.tag.SystemId) will be used as NodeID
var systemid = socket.tag.SystemId.split('-').join('');
var nodeid = Buffer.from(systemid + systemid + systemid, 'hex').toString('base64').replace(/\+/g, '@').replace(/\//g, '$');
var domain = obj.parent.config.domains[mesh.domain];
socket.tag.domain = domain;
socket.tag.domainid = mesh.domain;
if (socket.tag.name == null) { socket.tag.name = ''; }
socket.tag.nodeid = 'node/' + mesh.domain + '/' + nodeid; // Turn 16bit systemid guid into 48bit nodeid that is base64 encoded
socket.tag.meshid = mesh._id;
socket.tag.connectTime = Date.now();
obj.db.Get(socket.tag.nodeid, function (err, nodes) {
if ((nodes == null) || (nodes.length !== 1)) {
// Check if we already have too many devices for this domain
if (domain.limits && (typeof domain.limits.maxdevices == 'number')) {
db.isMaxType(domain.limits.maxdevices, 'node', mesh.domain, function (ismax, count) {
if (ismax == true) {
// Too many devices in this domain.
maxDomainDevicesReached++;
console.log('Too many devices on this domain to accept the CIRA connection. meshid: ' + socket.tag.meshid);
socket.end();
} else {
// Attempts reverse DNS loopup on the device IP address
require('dns').reverse(socket.remoteAddr, function (err, hostnames) {
var hostname = socket.remoteAddr;
if ((err == null) && (hostnames != null) && (hostnames.length > 0)) { hostname = hostnames[0]; }
// We are under the limit, create the new device.
// Node is not in the database, add it. Credentials will be empty until added by the user.
var device = { type: 'node', mtype: 1, _id: socket.tag.nodeid, meshid: socket.tag.meshid, name: socket.tag.name, icon: (socket.tag.meiState.isBatteryPowered) ? 2 : 1, host: hostname, domain: mesh.domain, intelamt: { user: (typeof socket.tag.meiState.amtuser == 'string') ? socket.tag.meiState.amtuser : '', pass: (typeof socket.tag.meiState.amtpass == 'string') ? socket.tag.meiState.amtpass : '', tls: 0, state: 2 } };
if ((typeof socket.tag.meiState.desc == 'string') && (socket.tag.meiState.desc.length > 0) && (socket.tag.meiState.desc.length < 1024)) { device.desc = socket.tag.meiState.desc; }
obj.db.Set(device);
// Event the new node
addedDeviceCount++;
var change = 'CIRA added device ' + socket.tag.name + ' to group ' + mesh.name;
obj.parent.DispatchEvent(['*', socket.tag.meshid], obj, { etype: 'node', action: 'addnode', node: parent.webserver.CloneSafeNode(device), msg: change, domain: mesh.domain });
// Add the connection to the MPS connection list
addCiraConnection(socket);
SendUserAuthSuccess(socket); // Notify the auth success on the CIRA connection
});
}
});
return;
} else {
// Attempts reverse DNS loopup on the device IP address
require('dns').reverse(socket.remoteAddr, function (err, hostnames) {
var hostname = socket.remoteAddr;
if ((err == null) && (hostnames != null) && (hostnames.length > 0)) { hostname = hostnames[0]; }
// Node is not in the database, add it. Credentials will be empty until added by the user.
var device = { type: 'node', mtype: 1, _id: socket.tag.nodeid, meshid: socket.tag.meshid, name: socket.tag.name, icon: (socket.tag.meiState && socket.tag.meiState.isBatteryPowered) ? 2 : 1, host: hostname, domain: mesh.domain, intelamt: { user: ((socket.tag.meiState) && (typeof socket.tag.meiState.amtuser == 'string')) ? socket.tag.meiState.amtuser : '', pass: ((socket.tag.meiState) && (typeof socket.tag.meiState.amtpass == 'string')) ? socket.tag.meiState.amtpass : '', tls: 0, state: 2 } };
if ((socket.tag.meiState != null) && (typeof socket.tag.meiState.desc == 'string') && (socket.tag.meiState.desc.length > 0) && (socket.tag.meiState.desc.length < 1024)) { device.desc = socket.tag.meiState.desc; }
obj.db.Set(device);
// Event the new node
addedDeviceCount++;
var change = 'CIRA added device ' + socket.tag.name + ' to group ' + mesh.name;
obj.parent.DispatchEvent(['*', socket.tag.meshid], obj, { etype: 'node', action: 'addnode', node: parent.webserver.CloneSafeNode(device), msg: change, domain: mesh.domain });
});
}
} else {
// Node is already present
var node = nodes[0];
socket.tag.meshid = node.meshid; // Correct the MeshID if the node has moved.
if ((node.intelamt != null) && (node.intelamt.state == 2)) { socket.tag.host = node.intelamt.host; }
}
// Add the connection to the MPS connection list
addCiraConnection(socket);
SendUserAuthSuccess(socket); // Notify the auth success on the CIRA connection
});
} else if (mesh.mtype == 2) { // If this is a agent mesh, search the mesh for this device UUID
// Intel AMT GUID (socket.tag.SystemId) will be used to search the node
obj.db.getAmtUuidMeshNode(mesh._id, socket.tag.SystemId, function (err, nodes) { // TODO: Need to optimize this request with indexes
if ((nodes == null) || (nodes.length === 0) || (obj.parent.webserver.meshes == null)) {
// New CIRA connection for unknown node, disconnect.
unknownNodeCount++;
console.log('CIRA connection for unknown node. groupid: ' + mesh._id + ', uuid: ' + socket.tag.SystemId);
socket.end();
return;
}
// Looking at nodes that match this UUID, select one in the same domain and mesh type.
var node = null;
for (var i in nodes) {
if (mesh.domain == nodes[i].domain) {
var nodemesh = obj.parent.webserver.meshes[nodes[i].meshid];
if ((nodemesh != null) && (nodemesh.mtype == 2)) { node = nodes[i]; }
}
}
if (node == null) {
// New CIRA connection for unknown node, disconnect.
unknownNodeCount++;
console.log('CIRA connection for unknown node. candidate(s): ' + nodes.length + ', groupid: ' + mesh._id + ', uuid: ' + socket.tag.SystemId);
socket.end();
return;
}
// Node is present
if ((node.intelamt != null) && (node.intelamt.state == 2)) { socket.tag.host = node.intelamt.host; }
socket.tag.nodeid = node._id;
socket.tag.meshid = node.meshid; // Correct the MeshID if the node has moved.
socket.tag.connectTime = Date.now();
// Add the connection to the MPS connection list
addCiraConnection(socket);
SendUserAuthSuccess(socket); // Notify the auth success on the CIRA connection
});
} else { // Unknown mesh type
// New CIRA connection for unknown node, disconnect.
unknownMeshIdCount++;
console.log('CIRA connection to a unknown group type. groupid: ' + socket.tag.meshid);
socket.end();
return;
}
return 18 + usernameLen + serviceNameLen + methodNameLen + passwordLen;
}
case APFProtocol.SERVICE_REQUEST: {
if (len < 5) return 0;
var xserviceNameLen = common.ReadInt(data, 1);
if (len < 5 + xserviceNameLen) return 0;
var xserviceName = data.substring(5, 5 + xserviceNameLen);
parent.debug('mpscmd', '--> SERVICE_REQUEST', xserviceName);
if (xserviceName == "[email protected]") { SendServiceAccept(socket, "[email protected]"); }
if (xserviceName == "[email protected]") { SendServiceAccept(socket, "[email protected]"); }
return 5 + xserviceNameLen;
}
case APFProtocol.GLOBAL_REQUEST: {
if (len < 14) return 0;
var requestLen = common.ReadInt(data, 1);
if (len < 14 + requestLen) return 0;
var request = data.substring(5, 5 + requestLen);
//var wantResponse = data.charCodeAt(5 + requestLen);
if (request == 'tcpip-forward') {
var addrLen = common.ReadInt(data, 6 + requestLen);
if (len < 14 + requestLen + addrLen) return 0;
var addr = data.substring(10 + requestLen, 10 + requestLen + addrLen);
var port = common.ReadInt(data, 10 + requestLen + addrLen);
parent.debug('mpscmd', '--> GLOBAL_REQUEST', request, addr + ':' + port);
if (socket.tag.boundPorts.indexOf(port) == -1) { socket.tag.boundPorts.push(port); }
SendTcpForwardSuccessReply(socket, port);
return 14 + requestLen + addrLen;
}
if (request == 'cancel-tcpip-forward') {
var addrLen = common.ReadInt(data, 6 + requestLen);
if (len < 14 + requestLen + addrLen) return 0;
var addr = data.substring(10 + requestLen, 10 + requestLen + addrLen);
var port = common.ReadInt(data, 10 + requestLen + addrLen);
parent.debug('mpscmd', '--> GLOBAL_REQUEST', request, addr + ':' + port);
var portindex = socket.tag.boundPorts.indexOf(port);
if (portindex >= 0) { socket.tag.boundPorts.splice(portindex, 1); }
SendTcpForwardCancelReply(socket);
return 14 + requestLen + addrLen;
}
if (request == '[email protected]') {
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;
parent.debug('mpscmd', '--> 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);
channelOpenCount++;
parent.debug('mpscmd', '--> 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;
channelOpenConfirmCount++;
parent.debug('mpscmd', '--> 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.slice(0, cirachannel.sendcredits));
cirachannel.sendBuffer = cirachannel.sendBuffer.slice(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);
channelOpenFailCount++;
parent.debug('mpscmd', '--> 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);
channelCloseCount++;
parent.debug('mpscmd', '--> 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); }
SendChannelClose(cirachannel.socket, cirachannel.amtchannelid);
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;
parent.debug('mpscmd', '--> 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.slice(0, cirachannel.sendcredits));
cirachannel.sendBuffer = cirachannel.sendBuffer.slice(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;
parent.debug('mpscmddata', '--> 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, Buffer.from(data.substring(9, 9 + LengthOfData), 'binary')); }
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);
disconnectCommandCount++;
parent.debug('mpscmd', '--> DISCONNECT', ReasonCode);
removeCiraConnection(socket);
return 7;
}
case APFProtocol.JSON_CONTROL: // This is a Mesh specific command that sends JSON to and from the MPS server.