summaryrefslogtreecommitdiffstats
path: root/tests/gsup/gsup_test.c
blob: b84c88f0d671246bd11bc6a97d7efacb5bd8417e (plain)
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
#include <string.h>

#include <osmocom/core/logging.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/application.h>
#include <osmocom/gsm/gsup.h>

#define VERBOSE_FPRINTF(...)

/* Tests for osmo_gsup_messages.c */

/* Complete IEs used multiple times (sorted alphabetically)
 * 1st byte: IEI from osmo_gsup_iei, 2nd byte: length */
#define TEST_IMSI_IE 0x01, 0x08, 0x21, 0x43, 0x65, 0x87, 0x09, 0x21, 0x43, 0xf5
#define TEST_IMSI_STR "123456789012345"
#define TEST_CLASS_SUBSCR_IE 0xa, 0x1, 0x1
#define TEST_CLASS_INTER_MSC_IE 0xa, 0x1, 0x4
#define TEST_MSISDN_IE 0x08, 0x07, 0x91, 0x94, 0x61, 0x46, 0x32, 0x24, 0x43
#define TEST_AN_APDU_IE 0x62, 0x05, 0x01, 0x42, 0x42, 0x42, 0x42
#define TEST_SOURCE_NAME_IE 0x60, 0x05, 'M', 'S', 'C', '-', 'A'
#define TEST_DESTINATION_NAME_IE 0x61, 0x05, 'M', 'S', 'C', '-', 'B'

static void test_gsup_messages_dec_enc(void)
{
	int test_idx;
	int rc;
	uint8_t buf[1024];

	static const uint8_t send_auth_info_req[] = {
		0x08,
		TEST_IMSI_IE,
		TEST_CLASS_SUBSCR_IE
	};

	static const uint8_t send_auth_info_err[] = {
		0x09,
		TEST_IMSI_IE,
		0x02, 0x01, 0x07 /* GPRS no allowed */
	};

	static const uint8_t send_auth_info_res[] = {
		0x0a,
		TEST_IMSI_IE,
		0x03, 0x22, /* Auth tuple */
			0x20, 0x10,
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x21, 0x04,
				0x21, 0x22, 0x23, 0x24,
			0x22, 0x08,
				0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
		0x03, 0x22, /* Auth tuple */
			0x20, 0x10,
				0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88,
				0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90,
			0x21, 0x04,
				0xa1, 0xa2, 0xa3, 0xa4,
			0x22, 0x08,
				0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8,
	};

	static const uint8_t update_location_req[] = {
		0x04,
		TEST_IMSI_IE,
	};

	static const uint8_t update_location_err[] = {
		0x05,
		TEST_IMSI_IE,
		0x02, 0x01, 0x07 /* GPRS no allowed */
	};

	static const uint8_t update_location_res[] = {
		0x06,
		TEST_IMSI_IE,
		TEST_MSISDN_IE,
		0x09, 0x07, /* HLR-Number of the subscriber */
			0x91, 0x83, 0x52, 0x38, 0x48, 0x83, 0x93,
		0x04, 0x00, /* PDP info complete */
		0x05, 0x19,
			0x10, 0x01, 0x01,
			0x11, 0x02, 0xf1, 0x21, /* IPv4 */
			0x12, 0x09, 0x04, 't', 'e', 's', 't', 0x03, 'a', 'p', 'n',
			0x13, 0x01, 0x02,
			0x14, 0x02, 0xFF, 0x23,
		0x05, 0x11,
			0x10, 0x01, 0x02,
			0x11, 0x02, 0xf1, 0x21, /* IPv4 */
			0x12, 0x08, 0x03, 'f', 'o', 'o', 0x03, 'a', 'p', 'n',
		0x14, 0x02,
			0xAE, 0xFF
	};

	static const uint8_t location_cancellation_req[] = {
		0x1c,
		TEST_IMSI_IE,
		0x06, 0x01, 0x00,
	};

	static const uint8_t location_cancellation_err[] = {
		0x1d,
		TEST_IMSI_IE,
		0x02, 0x01, 0x03 /* Illegal MS */
	};

	static const uint8_t location_cancellation_res[] = {
		0x1e,
		TEST_IMSI_IE,
	};

	static const uint8_t purge_ms_req[] = {
		0x0c,
		TEST_IMSI_IE,
	};

	static const uint8_t purge_ms_err[] = {
		0x0d,
		TEST_IMSI_IE,
		0x02, 0x01, 0x03, /* Illegal MS */
	};

	static const uint8_t purge_ms_res[] = {
		0x0e,
		TEST_IMSI_IE,
		0x07, 0x00,
	};

	static const uint8_t send_auth_info_res_umts[] = {
		0x0a,
		TEST_IMSI_IE,
		0x03, 0x62, /* Auth tuple */
			0x20, 0x10, /* rand */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x21, 0x04, /* sres */
				0x21, 0x22, 0x23, 0x24,
			0x22, 0x08, /* kc */
				0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
			0x23, 0x10, /* IK (UMTS) */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x24, 0x10, /* CK (UMTS) */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x25, 0x10, /* AUTN (UMTS) */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
				0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
			0x27, 0x08, /* RES (UMTS) */
				0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
		0x03, 0x62, /* Auth tuple */
			0x20, 0x10, /* rand */
				0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8,
				0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0x10,
			0x21, 0x04, /* sres */
				0xb1, 0xb2, 0xb3, 0xb4,
			0x22, 0x08, /* kc */
				0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8,
			0x23, 0x10, /* IK (UMTS) */
				0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8,
				0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xd0,
			0x24, 0x10, /* CK (UMTS) */
				0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8,
				0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xe0,
			0x25, 0x10, /* AUTN (UMTS) */
				0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
				0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0xf0,
			0x27, 0x08, /* RES (UMTS) */
				0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
	};

	static const uint8_t send_auth_info_req_auts[] = {
		0x08,
		TEST_IMSI_IE,
		0x26, 0x0e, /* AUTS (UMTS) */
			0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
			0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
		0x20, 0x10, /* rand */
			0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
			0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
	};

	static const uint8_t dummy_session_ies[] = {
		0x2b, /* Dummy value, we only interested in IE coding */
		TEST_IMSI_IE,

		/* Session ID and state */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x01,
	};

	static const uint8_t send_ussd_req[] = {
		0x20, /* OSMO_GSUP_MSGT_PROC_SS_REQUEST */
		TEST_IMSI_IE,

		/* Session ID and state */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x01,

		/* SS/USSD information IE */
		0x35, 0x14,
			/* ASN.1 encoded MAP payload */
			0xa1, 0x12,
				0x02, 0x01, /* Component: invoke */
				0x01, /* invokeID = 1 */
				/* opCode: processUnstructuredSS-Request */
				0x02, 0x01, 0x3b, 0x30, 0x0a, 0x04, 0x01, 0x0f,
				0x04, 0x05, 0xaa, 0x18, 0x0c, 0x36, 0x02,
	};

	static const uint8_t send_ussd_res[] = {
		0x22, /* OSMO_GSUP_MSGT_PROC_SS_RESULT */
		TEST_IMSI_IE,

		/* Session ID and state */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x03,

		/* SS/USSD information IE */
		0x35, 0x08,
			/* ASN.1 encoded MAP payload */
			0xa3, 0x06,
				0x02, 0x01, /* Component: returnError */
				0x01, /* invokeID = 1 */
				/* localValue: unknownAlphabet */
				0x02, 0x01, 0x47,
	};

	static const uint8_t send_mo_forward_sm_req[] = {
		0x24, /* OSMO_GSUP_MSGT_MO_FORWARD_SM_REQUEST */
		TEST_IMSI_IE,

		/* SM related IEs */
		0x40, 0x01, /* SM-RP-MR (Message Reference) */
			0xfa,
		0x41, 0x08, /* SM-RP-DA (Destination Address) */
			0x03, /* SMSC address */
				0x91, 0x52, 0x75, 0x47, 0x99, 0x09, 0x82,
		0x42, 0x01, /* SM-RP-OA (Originating Address) */
			0xff, /* Special case: noSM-RP-OA */
		0x43, 0x04, /* SM-RP-UI (TPDU) */
			0xde, 0xad, 0xbe, 0xef,
	};

	static const uint8_t send_mt_forward_sm_req[] = {
		0x28, /* OSMO_GSUP_MSGT_MT_FORWARD_SM_REQUEST */
		TEST_IMSI_IE,

		/* SM related IEs */
		0x40, 0x01, /* SM-RP-MR (Message Reference) */
			0xfa,
		0x41, 0x09, /* SM-RP-DA (Destination Address) */
			0x01, /* IMSI */
				0x21, 0x43, 0x65, 0x87, 0x09, 0x21, 0x43, 0xf5,
		0x42, 0x08, /* SM-RP-OA (Originating Address) */
			0x03, /* SMSC address */
				0x91, 0x52, 0x75, 0x47, 0x99, 0x09, 0x82,
		0x43, 0x04, /* SM-RP-UI (TPDU) */
			0xde, 0xad, 0xbe, 0xef,
		0x45, 0x01, /* SM-RP-MMS (More Messages to Send) */
			0x01,
	};

	static const uint8_t send_mo_mt_forward_sm_err[] = {
		0x25, /* OSMO_GSUP_MSGT_MO_FORWARD_SM_ERROR */
		TEST_IMSI_IE,

		/* SM related IEs */
		0x40, 0x01, /* SM-RP-MR (Message Reference) */
			0xfa,
		0x44, 0x01, /* SM-RP-Cause value */
			0xaf,
	};

	static const uint8_t send_mo_mt_forward_sm_rsp[] = {
		0x2a, /* OSMO_GSUP_MSGT_MT_FORWARD_SM_RESULT */
		TEST_IMSI_IE,

		/* SM related IEs */
		0x40, 0x01, /* SM-RP-MR (Message Reference) */
			0xfa,
		0x43, 0x04, /* SM-RP-UI (TPDU) */
			0xde, 0xad, 0xbe, 0xef,
	};

	static const uint8_t send_ready_for_sm_ind[] = {
		0x2c, /* OSMO_GSUP_MSGT_READY_FOR_SM_REQUEST */
		TEST_IMSI_IE,

		/* SM related IEs */
		0x46, 0x01, /* Alert reason */
			0x02, /* Memory Available (SMMA) */
	};

	static const uint8_t send_check_imei_req[] = {
		0x30, /* OSMO_GSUP_MSGT_CHECK_IMEI_REQUEST */
		TEST_IMSI_IE,

		/* imei */
		0x50, 0x09,
			0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
	};

	static const uint8_t send_check_imei_err[] = {
		0x31, /* OSMO_GSUP_MSGT_CHECK_IMEI_ERROR */
		TEST_IMSI_IE,

		/* cause */
		0x02, 0x01,
			0x60, /* GMM_CAUSE_INV_MAND_INFO */
	};

	static const uint8_t send_check_imei_res[] = {
		0x32, /* OSMO_GSUP_MSGT_CHECK_IMEI_RESULT */
		TEST_IMSI_IE,

		/* imei_result */
		0x51, 0x01,
			0x00, /* OSMO_GSUP_IMEI_RESULT_ACK */
	};

	/* Handover related test messages. Oftentimes they only differ in the
	 * AN_APDU_IE, which is mostly a blob in GSUP. To give a better example
	 * of how the messages can be used, I've added the information an_apdu
	 * holds in brackets (see osmo-msc.git's doc/interMSC_HO_GSUP_msgs.txt).
	 * The session states are from the ASCII art in this e-mail:
	 * https://lists.osmocom.org/pipermail/openbsc/2019-January/012653.html */
	static const uint8_t send_e_prepare_handover_req[] = {
		0x34, /* OSMO_GSUP_MSGT_E_PREPARE_HANDOVER_REQUEST */
		TEST_IMSI_IE,

		/* Session ID and state (begin) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x01,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
		TEST_AN_APDU_IE, /* (Handover Request) */
	};

	static const uint8_t send_e_prepare_handover_err[] = {
		0x35, /* OSMO_GSUP_MSGT_E_PREPARE_HANDOVER_ERROR */
		TEST_IMSI_IE,

		/* Session ID and state (continue) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x02,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,

		/* cause_bssap */
		0x64, 0x01,
			0x51, /* GSM0808_CAUSE_INVALID_MESSAGE_CONTENTS */
	};

	static const uint8_t send_e_prepare_handover_res[] = {
		0x36, /* OSMO_GSUP_MSGT_E_PREPARE_HANDOVER_RESULT */
		TEST_IMSI_IE,
		TEST_MSISDN_IE, /* (Handover Number) */

		/* Session ID and state (continue) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x02,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
		TEST_AN_APDU_IE, /* (Handover Request Ack) */
	};

	static const uint8_t send_e_prepare_subsequent_handover_req[] = {
		0x38, /* OSMO_GSUP_MSGT_E_PREPARE_SUBSEQUENT_HANDOVER_REQUEST */
		TEST_IMSI_IE,

		/* Session ID and state (begin) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x01,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
		TEST_AN_APDU_IE, /* (Handover Required) */
	};

	static const uint8_t send_e_prepare_subsequent_handover_err[] = {
		0x39, /* OSMO_GSUP_MSGT_E_PREPARE_SUBSEQUENT_HANDOVER_ERROR */
		TEST_IMSI_IE,

		/* Session ID and state (continue) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x02,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,

		/* cause_bssap */
		0x64, 0x01,
			0x51, /* GSM0808_CAUSE_INVALID_MESSAGE_CONTENTS */
	};

	static const uint8_t send_e_prepare_subsequent_handover_res[] = {
		0x3A, /* OSMO_GSUP_MSGT_E_PREPARE_SUBSEQUENT_HANDOVER_RESULT */
		TEST_IMSI_IE,

		/* Session ID and state (continue) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x02,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
		TEST_AN_APDU_IE, /* (Handover Request Ack) */
	};

	static const uint8_t send_e_send_end_signal_req[] = {
		0x3C, /* OSMO_GSUP_MSGT_E_SEND_END_SIGNAL_REQUEST */
		TEST_IMSI_IE,

		/* Session ID and state (end) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x03,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
		TEST_AN_APDU_IE, /* (Handover Complete) */
	};

	static const uint8_t send_e_send_end_signal_err[] = {
		0x3D, /* OSMO_GSUP_MSGT_E_SEND_END_SIGNAL_ERROR */
		TEST_IMSI_IE,

		/* Session ID and state (continue) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x02,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,

		/* cause_bssap */
		0x64, 0x01,
			0x51, /* GSM0808_CAUSE_INVALID_MESSAGE_CONTENTS */
	};

	static const uint8_t send_e_process_access_signalling_req[] = {
		0x40, /* OSMO_GSUP_MSGT_E_PROCESS_ACCESS_SIGNALLING_REQUEST */
		TEST_IMSI_IE,

		/* Session ID and state (continue) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x02,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
		TEST_AN_APDU_IE, /* (Handover Detect) */
	};

	static const uint8_t send_e_send_end_signal_res[] = {
		0x3E, /* OSMO_GSUP_MSGT_E_SEND_END_SIGNAL_RESULT */
		TEST_IMSI_IE,

		/* Session ID and state (end) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x03,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
		TEST_AN_APDU_IE, /* (Handover Complete) */
	};

	static const uint8_t send_e_forward_access_signalling_req [] = {
		0x44, /* OSMO_GSUP_MSGT_E_FORWARD_ACCESS_SIGNALLING_REQUEST */
		TEST_IMSI_IE,

		/* Session ID and state (continue) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x02,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
		TEST_AN_APDU_IE, /* (DTAP, e.g. CC, SMS, ...) */
	};

	static const uint8_t send_e_close[] = {
		0x47, /* OSMO_GSUP_MSGT_E_CLOSE */
		TEST_IMSI_IE,

		/* Session ID and state (end) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x03,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
	};

	static const uint8_t send_e_abort[] = {
		0x4B, /* OSMO_GSUP_MSGT_E_ABORT */
		TEST_IMSI_IE,

		/* Session ID and state (end) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x03,

		TEST_CLASS_INTER_MSC_IE,

		/* cause_bssap */
		0x64, 0x01,
			0x51, /* GSM0808_CAUSE_INVALID_MESSAGE_CONTENTS */
	};

	static const uint8_t send_e_routing_error[] = {
		0x4E, /* OSMO_GSUP_MSGT_E_ROUTING_ERROR */
		TEST_IMSI_IE,

		/* Session ID and state (end) */
		0x30, 0x04, 0xde, 0xad, 0xbe, 0xef,
		0x31, 0x01, 0x03,

		TEST_CLASS_INTER_MSC_IE,
		TEST_SOURCE_NAME_IE,
		TEST_DESTINATION_NAME_IE,
	};

	static const struct test {
		char *name;
		const uint8_t *data;
		size_t data_len;
	} test_messages[] = {
		{"Send Authentication Info Request",
			send_auth_info_req, sizeof(send_auth_info_req)},
		{"Send Authentication Info Error",
			send_auth_info_err, sizeof(send_auth_info_err)},
		{"Send Authentication Info Result",
			send_auth_info_res, sizeof(send_auth_info_res)},
		{"Update Location Request",
			update_location_req, sizeof(update_location_req)},
		{"Update Location Error",
			update_location_err, sizeof(update_location_err)},
		{"Update Location Result",
			update_location_res, sizeof(update_location_res)},
		{"Location Cancellation Request",
			location_cancellation_req, sizeof(location_cancellation_req)},
		{"Location Cancellation Error",
			location_cancellation_err, sizeof(location_cancellation_err)},
		{"Location Cancellation Result",
			location_cancellation_res, sizeof(location_cancellation_res)},
		{"Purge MS Request",
			purge_ms_req, sizeof(purge_ms_req)},
		{"Purge MS Error",
			purge_ms_err, sizeof(purge_ms_err)},
		{"Purge MS Result",
			purge_ms_res, sizeof(purge_ms_res)},
		{"Send Authentication Info Result with IK, CK, AUTN and RES (UMTS)",
			send_auth_info_res_umts, sizeof(send_auth_info_res_umts)},
		{"Send Authentication Info Request with AUTS and RAND (UMTS)",
			send_auth_info_req_auts, sizeof(send_auth_info_req_auts)},
		{"Dummy message with session IEs",
			dummy_session_ies, sizeof(dummy_session_ies)},
		{"SS/USSD processUnstructuredSS-Request / Invoke",
			send_ussd_req, sizeof(send_ussd_req)},
		{"SS/USSD processUnstructuredSS-Request / ReturnResult",
			send_ussd_res, sizeof(send_ussd_res)},
		{"MO-ForwardSM (MSC -> SMSC) Request",
			send_mo_forward_sm_req, sizeof(send_mo_forward_sm_req)},
		{"MT-ForwardSM (MSC -> SMSC) Request",
			send_mt_forward_sm_req, sizeof(send_mt_forward_sm_req)},
		{"MO-/MT-ForwardSM Response",
			send_mo_mt_forward_sm_rsp, sizeof(send_mo_mt_forward_sm_rsp)},
		{"MO-/MT-ForwardSM Error",
			send_mo_mt_forward_sm_err, sizeof(send_mo_mt_forward_sm_err)},
		{"ReadyForSM (MSC -> SMSC) Indication",
			send_ready_for_sm_ind, sizeof(send_ready_for_sm_ind)},
		{"Check IMEI Request",
			send_check_imei_req, sizeof(send_check_imei_req)},
		{"Check IMEI Error",
			send_check_imei_err, sizeof(send_check_imei_err)},
		{"Check IMEI Result",
			send_check_imei_res, sizeof(send_check_imei_res)},
		{"E Prepare Handover Request",
			send_e_prepare_handover_req, sizeof(send_e_prepare_handover_req)},
		{"E Prepare Handover Error",
			send_e_prepare_handover_err, sizeof(send_e_prepare_handover_err)},
		{"E Prepare Handover Result",
			send_e_prepare_handover_res, sizeof(send_e_prepare_handover_res)},
		{"E Prepare Subsequent Handover Request",
			send_e_prepare_subsequent_handover_req, sizeof(send_e_prepare_subsequent_handover_req)},
		{"E Prepare Subsequent Handover Error",
			send_e_prepare_subsequent_handover_err, sizeof(send_e_prepare_subsequent_handover_err)},
		{"E Prepare Subsequent Handover Result",
			send_e_prepare_subsequent_handover_res, sizeof(send_e_prepare_subsequent_handover_res)},
		{"E Send End Signal Request",
			send_e_send_end_signal_req, sizeof(send_e_send_end_signal_req)},
		{"E Send End Signal Error",
			send_e_send_end_signal_err, sizeof(send_e_send_end_signal_err)},
		{"E Send End Signal Result",
			send_e_send_end_signal_res, sizeof(send_e_send_end_signal_res)},
		{"E Process Access Signalling Request",
			send_e_process_access_signalling_req, sizeof(send_e_process_access_signalling_req)},
		{"E Forward Access Signalling Request",
			send_e_forward_access_signalling_req, sizeof(send_e_forward_access_signalling_req)},
		{"E Close",
			send_e_close, sizeof(send_e_close)},
		{"E Abort",
			send_e_abort, sizeof(send_e_abort)},
		{"E Routing Error",
			send_e_routing_error, sizeof(send_e_routing_error)},
	};

	printf("Test GSUP message decoding/encoding\n");

	for (test_idx = 0; test_idx < ARRAY_SIZE(test_messages); test_idx++) {
		const struct test *t = &test_messages[test_idx];
		struct osmo_gsup_message gm = {0};
		struct msgb *msg = msgb_alloc(4096, "gsup_test");
		bool passed = true;

		printf("  Testing %s\n", t->name);

		rc = osmo_gsup_decode(t->data, t->data_len, &gm);
		if (rc < 0)
			passed = false;

		rc = osmo_gsup_encode(msg, &gm);
		if (rc < 0)
			passed = false;

		fprintf(stderr, "  generated message: %s\n", msgb_hexdump(msg));
		fprintf(stderr, "  original message:  %s\n", osmo_hexdump(t->data, t->data_len));
		fprintf(stderr, "  IMSI:              %s\n", gm.imsi);

		if (strcmp(gm.imsi, TEST_IMSI_STR) != 0 ||
		    msgb_length(msg) != t->data_len ||
		    memcmp(msgb_data(msg), t->data, t->data_len) != 0)
			passed = false;

		if (passed)
			printf("          %s OK\n", t->name);
		else
			printf("          %s FAILED: %d<%s> [%u,%u,%zu,%u]\n",
			       t->name, rc, strerror(-rc),
			       strcmp(gm.imsi, TEST_IMSI_STR),
			       msgb_length(msg), t->data_len,
			       memcmp(msgb_data(msg), t->data, t->data_len));
		msgb_free(msg);
	}

	/* simple truncation test */
	for (test_idx = 0; test_idx < ARRAY_SIZE(test_messages); test_idx++) {
		int j;
		const struct test *t = &test_messages[test_idx];
		int ie_end = t->data_len;
		struct osmo_gsup_message gm = {0};
		int counter = 0;
		int parse_err = 0;

		for (j = t->data_len - 1; j >= 0; --j) {
			rc = osmo_gsup_decode(t->data, j, &gm);
			counter += 1;

			VERBOSE_FPRINTF(stderr,
				"  partial message decoding: "
				"orig_len = %d, trunc = %d, rc = %d, ie_end = %d\n",
				t->data_len, j, rc, ie_end);
			if (rc >= 0) {
				VERBOSE_FPRINTF(stderr,
					"    remaing partial message: %s\n",
					osmo_hexdump(t->data + j, ie_end - j));

				OSMO_ASSERT(j <= ie_end - 2);
				OSMO_ASSERT(t->data[j+0] < _OSMO_GSUP_IEI_END_MARKER);
				OSMO_ASSERT(t->data[j+1] <= ie_end - j - 2);

				ie_end = j;
			} else {
				parse_err += 1;
			}
		}

		fprintf(stderr,
			"  message %d: tested %d truncations, %d parse failures\n",
			test_idx, counter, parse_err);
	}

	/* Don't log thousands of message modification errors */
	LOGP(DLGSUP, LOGL_NOTICE, "Stopping DLGSUP logging\n");
	log_set_category_filter(osmo_stderr_target, DLGSUP, 0, 0);

	/* message modification test (relies on ASAN or valgrind being used) */
	for (test_idx = 0; test_idx < ARRAY_SIZE(test_messages); test_idx++) {
		int j;
		const struct test *t = &test_messages[test_idx];
		struct osmo_gsup_message gm = {0};
		uint8_t val;
		int counter = 0;
		int parse_err = 0;

		OSMO_ASSERT(sizeof(buf) >= t->data_len);

		for (j = t->data_len - 1; j >= 0; --j) {
			memcpy(buf, t->data, t->data_len);
			val = 0;
			do {
				VERBOSE_FPRINTF(stderr,
					"t = %d, len = %d, val = %d\n",
					test_idx, j, val);
				buf[j] = val;
				rc = osmo_gsup_decode(buf, t->data_len, &gm);
				counter += 1;
				if (rc < 0)
					parse_err += 1;

				val += 1;
			} while (val != (uint8_t)256);
		}

		fprintf(stderr,
			"  message %d: tested %d modifications, %d parse failures\n",
			test_idx, counter, parse_err);
	}
}

const struct log_info_cat default_categories[] = {
};

static struct log_info info = {
	.cat = default_categories,
	.num_cat = ARRAY_SIZE(default_categories),
};

int main(int argc, char **argv)
{
	void *ctx = talloc_named_const(NULL, 0, "gsup_test");
	osmo_init_logging2(ctx, &info);
	log_set_print_filename(osmo_stderr_target, 0);
	log_set_print_timestamp(osmo_stderr_target, 0);
	log_set_use_color(osmo_stderr_target, 0);
	log_set_print_category(osmo_stderr_target, 1);

	test_gsup_messages_dec_enc();

	printf("Done.\n");
	return EXIT_SUCCESS;
}