summaryrefslogtreecommitdiffstats
path: root/qa/test_api.c
blob: b96ecf7241ceba9beaeb54b911f10aaf0a899e4c (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
/*
 * Run this after adding a new attribute to the nf_conntrack object
 */

#include <assert.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/wait.h>
#include <time.h>
#include <errno.h>

#include <libnetfilter_conntrack/libnetfilter_conntrack.h>

/*
 * this file contains a test to check the set/get/copy/cmp APIs.
 */

static void eval_sigterm(int status)
{
	switch(WTERMSIG(status)) {
	case SIGSEGV:
		printf("received SIGSEV\n");
		break;
	case 0:
		printf("OK\n");
		break;
	default:
		printf("exited with signal: %d\n", WTERMSIG(status));
		break;
	}
}

static void test_nfct_bitmask(void)
{
	struct nfct_bitmask *a, *b;
	unsigned short int maxb, i;
	struct nf_conntrack *ct1, *ct2;

	printf("== test nfct_bitmask_* API ==\n");

	maxb = rand() & 0xffff;

	a = nfct_bitmask_new(maxb);

	assert(!nfct_bitmask_test_bit(a, maxb + 32));
	nfct_bitmask_set_bit(a, maxb + 32);
	assert(!nfct_bitmask_test_bit(a, maxb + 32));

	for (i = 0; i <= maxb; i++)
		assert(!nfct_bitmask_test_bit(a, i));

	for (i = 0; i <= maxb; i++) {
		if (rand() & 1) {
			assert(!nfct_bitmask_test_bit(a, i));
			continue;
		}
		nfct_bitmask_set_bit(a, i);
		assert(nfct_bitmask_test_bit(a, i));
	}

	b = nfct_bitmask_clone(a);
	assert(b);

	for (i = 0; i <= maxb; i++) {
		if (nfct_bitmask_test_bit(a, i))
			assert(nfct_bitmask_test_bit(b, i));
		else
			assert(!nfct_bitmask_test_bit(b, i));
	}

	nfct_bitmask_destroy(a);

	for (i = 0; i <= maxb; i++) {
		if (rand() & 1)
			continue;
		nfct_bitmask_unset_bit(b, i);
		assert(!nfct_bitmask_test_bit(b, i));
	}

	/* nfct_bitmask_clear() */
	for (i = 0; i < maxb; i++) {
		nfct_bitmask_set_bit(b, i);
		assert(nfct_bitmask_test_bit(b, i));
		nfct_bitmask_clear(b);
		assert(!nfct_bitmask_test_bit(b, i));
	}

	for (i = 0; i < maxb; i++)
		nfct_bitmask_set_bit(b, i);
	nfct_bitmask_clear(b);
	for (i = 0; i < maxb; i++)
		assert(!nfct_bitmask_test_bit(b, i));

	/* nfct_bitmask_equal() */
	for (i = 0; i < maxb / 32 * 32; i += 32) {
		a = nfct_bitmask_new(i);
		assert(!nfct_bitmask_equal(a, b));
		nfct_bitmask_destroy(a);
	}

	a = nfct_bitmask_clone(b);
	assert(nfct_bitmask_equal(a, b));
	for (i = 0; i < maxb; i++) {
		if (nfct_bitmask_test_bit(a, i)) {
			nfct_bitmask_unset_bit(a, i);
			assert(!nfct_bitmask_equal(a, b));
			nfct_bitmask_set_bit(a, i);
		} else {
			nfct_bitmask_set_bit(a, i);
			assert(!nfct_bitmask_equal(a, b));
			nfct_bitmask_unset_bit(a, i);
		}
		assert(nfct_bitmask_equal(a, b));
	}

	nfct_bitmask_destroy(a);
	nfct_bitmask_destroy(b);

	ct1 = nfct_new();
	ct2 = nfct_new();

	maxb = rand() & 0xff;
	maxb += 128;
	maxb /= 2;
	a = nfct_bitmask_new(maxb * 2);
	b = nfct_bitmask_new(maxb);
	nfct_set_attr(ct1, ATTR_CONNLABELS, a);
	nfct_set_attr(ct2, ATTR_CONNLABELS, b);

	assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL) == 1);

	nfct_bitmask_set_bit(a, maxb);
	nfct_bitmask_set_bit(b, maxb);
	assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL) == 1);

	nfct_bitmask_set_bit(a, maxb * 2);
	assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL) == 0);
	nfct_destroy(ct1);
	nfct_destroy(ct2);
	printf("OK\n");
}

/* These attributes cannot be set, ignore them. */
static int attr_is_readonly(int attr)
{
	switch (attr) {
	case ATTR_ORIG_COUNTER_PACKETS:
	case ATTR_REPL_COUNTER_PACKETS:
	case ATTR_ORIG_COUNTER_BYTES:
	case ATTR_REPL_COUNTER_BYTES:
	case ATTR_USE:
	case ATTR_SECCTX:
	case ATTR_TIMESTAMP_START:
	case ATTR_TIMESTAMP_STOP:
		return 1;
	}
	return 0;
}


static int test_nfct_cmp_api_single(struct nf_conntrack *ct1,
				struct nf_conntrack *ct2, int attr)
{
	char data[256];
	struct nfct_bitmask *b;
	int bit;

	if (attr_is_readonly(attr))
		return 0;

	switch (attr) {
	case ATTR_SECMARK: /* obsolete */
		return 0;

	/* FIXME: not implemented comparators: */
	case ATTR_SNAT_IPV4:
	case ATTR_DNAT_IPV4:
	case ATTR_SNAT_IPV6:
	case ATTR_DNAT_IPV6:
	case ATTR_SNAT_PORT:
	case ATTR_DNAT_PORT:

	case ATTR_TCP_FLAGS_ORIG:
	case ATTR_TCP_FLAGS_REPL:
	case ATTR_TCP_MASK_ORIG:
	case ATTR_TCP_MASK_REPL:

	case ATTR_MASTER_IPV4_SRC:
	case ATTR_MASTER_IPV4_DST:
	case ATTR_MASTER_IPV6_SRC:
	case ATTR_MASTER_IPV6_DST:
	case ATTR_MASTER_PORT_SRC:
	case ATTR_MASTER_PORT_DST:
	case ATTR_MASTER_L3PROTO:
	case ATTR_MASTER_L4PROTO:

	case ATTR_ORIG_NAT_SEQ_CORRECTION_POS:
	case ATTR_ORIG_NAT_SEQ_OFFSET_BEFORE:
	case ATTR_ORIG_NAT_SEQ_OFFSET_AFTER:
	case ATTR_REPL_NAT_SEQ_CORRECTION_POS:
	case ATTR_REPL_NAT_SEQ_OFFSET_BEFORE:
	case ATTR_REPL_NAT_SEQ_OFFSET_AFTER:

	case ATTR_SCTP_VTAG_ORIG:
	case ATTR_SCTP_VTAG_REPL:

	case ATTR_HELPER_NAME:

	case ATTR_DCCP_ROLE:
	case ATTR_DCCP_HANDSHAKE_SEQ:

	case ATTR_TCP_WSCALE_ORIG:
	case ATTR_TCP_WSCALE_REPL:

	case ATTR_HELPER_INFO:
		return 0; /* XXX */

	default:
		break;
	}

	if (attr >= ATTR_SCTP_STATE) {
		nfct_set_attr_u8(ct1, ATTR_REPL_L4PROTO, IPPROTO_SCTP);
		nfct_set_attr_u8(ct1, ATTR_L4PROTO, IPPROTO_SCTP);
	} else if (attr >= ATTR_TCP_FLAGS_ORIG) {
		nfct_set_attr_u8(ct1, ATTR_REPL_L4PROTO, IPPROTO_TCP);
		nfct_set_attr_u8(ct1, ATTR_L4PROTO, IPPROTO_TCP);
	} else if (attr >= ATTR_ICMP_CODE) {
		nfct_set_attr_u8(ct1, ATTR_REPL_L4PROTO, IPPROTO_ICMP);
		nfct_set_attr_u8(ct1, ATTR_L4PROTO, IPPROTO_ICMP);
	} else if (attr >= ATTR_ORIG_PORT_SRC) {
		nfct_set_attr_u8(ct1, ATTR_REPL_L4PROTO, IPPROTO_TCP);
		nfct_set_attr_u8(ct1, ATTR_L4PROTO, IPPROTO_TCP);
	}

	nfct_copy(ct2, ct1, NFCT_CP_OVERRIDE);
	memset(data, 42, sizeof(data));

	assert(nfct_attr_is_set(ct1, attr));
	assert(nfct_attr_is_set(ct2, attr));

	switch (attr) {
	case ATTR_CONNLABELS:
	case ATTR_CONNLABELS_MASK:
		b = (void *) nfct_get_attr(ct1, attr);
		assert(b);
		b = nfct_bitmask_clone(b);
		assert(b);
		bit = nfct_bitmask_maxbit(b);
		if (nfct_bitmask_test_bit(b, bit)) {
			nfct_bitmask_unset_bit(b, bit);
			assert(!nfct_bitmask_test_bit(b, bit));
		} else {
			nfct_bitmask_set_bit(b, bit);
			assert(nfct_bitmask_test_bit(b, bit));
		}
		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL) == 1);
		nfct_set_attr(ct2, attr, b);
		break;
	case ATTR_HELPER_INFO:
		nfct_set_attr_l(ct2, attr, "test", 4);
		break;
	default:
		nfct_set_attr(ct2, attr, data);
		break;
	}

	if (nfct_cmp(ct1, ct2, NFCT_CMP_ALL) != 0) {
		fprintf(stderr, "nfct_cmp assert failure for attr %d\n", attr);
		fprintf(stderr, "%p, %p, %x, %x\n", nfct_get_attr(ct1, attr),
				nfct_get_attr(ct2, attr),
				nfct_get_attr_u32(ct1, attr), nfct_get_attr_u32(ct2, attr));
		return -1;
	}
	if (nfct_cmp(ct1, ct2, NFCT_CMP_ALL|NFCT_CMP_STRICT) != 0) {
		fprintf(stderr, "nfct_cmp strict assert failure for attr %d\n", attr);
		return -1;
	}
	return 0;
}

static int test_cmp_attr32(int attr, bool at1, bool at2,
			   uint32_t v1, uint32_t v2, unsigned int flags)
{
	struct nf_conntrack *ct1 = nfct_new();
	struct nf_conntrack *ct2 = nfct_new();
	int ret;

	if (at1)
		nfct_set_attr_u32(ct1, attr, v1);
	if (at2)
		nfct_set_attr_u32(ct2, attr, v2);

	ret = nfct_cmp(ct1, ct2, NFCT_CMP_ALL | flags);

	nfct_destroy(ct1);
	nfct_destroy(ct2);

	return ret;
}

static void test_nfct_cmp_attr(int attr)
{
	unsigned int flags = 0;

	/* 0000, 1000, 1100, 0010, 1010... */
	/*		       attr       at1    at2    v1	v2 */
	assert(test_cmp_attr32(attr, false, false,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  false,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, false, true,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  true,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, false, false,	1,	0,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	1,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, false, true,	1,	0,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  true,	1,	0,	flags) == 0);
	assert(test_cmp_attr32(attr, false, false,	0,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	0,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, false, true,	0,	1,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  true,	0,	1,	flags) == 0);
	assert(test_cmp_attr32(attr, false, false,	1,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	1,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, false, true,	1,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  true,	1,	1,	flags) == 1);

	flags = NFCT_CMP_STRICT;
	assert(test_cmp_attr32(attr, false, false,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  false,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, false, true,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  true,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, false, false,	1,	0,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	1,	0,	flags) == 0);
	assert(test_cmp_attr32(attr, false, true,	1,	0,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  true,	1,	0,	flags) == 0);
	assert(test_cmp_attr32(attr, false, false,	0,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	0,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, false, true,	0,	1,	flags) == 0);
	assert(test_cmp_attr32(attr, true,  true,	0,	1,	flags) == 0);
	assert(test_cmp_attr32(attr, false, false,	1,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	1,	1,	flags) == 0); /* verbose */
	assert(test_cmp_attr32(attr, false, true,	1,	1,	flags) == 0); /* verbose */
	assert(test_cmp_attr32(attr, true,  true,	1,	1,	flags) == 1);

	flags = NFCT_CMP_MASK;
	assert(test_cmp_attr32(attr, false, false,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  false,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, false, true,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  true,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, false, false,	1,	0,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	1,	0,	flags) == 0);
	assert(test_cmp_attr32(attr, false, true,	1,	0,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  true,	1,	0,	flags) == 0);
	assert(test_cmp_attr32(attr, false, false,	0,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	0,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, false, true,	0,	1,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  true,	0,	1,	flags) == 0);
	assert(test_cmp_attr32(attr, false, false,	1,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	1,	1,	flags) == 0); /* verbose */
	assert(test_cmp_attr32(attr, false, true,	1,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  true,	1,	1,	flags) == 1);

	flags = NFCT_CMP_STRICT|NFCT_CMP_MASK;
	assert(test_cmp_attr32(attr, false, false,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  false,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, false, true,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, true,  true,	0,	0,	flags) == 1);
	assert(test_cmp_attr32(attr, false, false,	1,	0,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	1,	0,	flags) == 0);
	assert(test_cmp_attr32(attr, false, true,	1,	0,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  true,	1,	0,	flags) == 0);
	assert(test_cmp_attr32(attr, false, false,	0,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	0,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, false, true,	0,	1,	flags) == 0);
	assert(test_cmp_attr32(attr, true,  true,	0,	1,	flags) == 0);
	assert(test_cmp_attr32(attr, false, false,	1,	1,	flags) == 1); /* verbose */
	assert(test_cmp_attr32(attr, true,  false,	1,	1,	flags) == 0); /* verbose */
	assert(test_cmp_attr32(attr, false, true,	1,	1,	flags) == 0); /* verbose */
	assert(test_cmp_attr32(attr, true,  true,	1,	1,	flags) == 1);
}

static void test_nfct_cmp_api(struct nf_conntrack *ct1, struct nf_conntrack *ct2)
{
	int i;

	printf("== test cmp API ==\n");

	test_nfct_cmp_attr(ATTR_ZONE);
	test_nfct_cmp_attr(ATTR_ORIG_ZONE);
	test_nfct_cmp_attr(ATTR_REPL_ZONE);
	test_nfct_cmp_attr(ATTR_MARK);

	assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL) == 1);
	assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL|NFCT_CMP_STRICT) == 0);

	nfct_copy(ct1, ct2, NFCT_CP_OVERRIDE);

	assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL) == 1);
	assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL|NFCT_CMP_STRICT) == 1);

	for (i=0; i < ATTR_MAX ; i++) {
		nfct_attr_unset(ct1, i);

		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL) == 1);
		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL|NFCT_CMP_STRICT) == 0);
		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL|NFCT_CMP_MASK) == 1);
	}
	nfct_copy(ct1, ct2, NFCT_CP_OVERRIDE);
	for (i=0; i < ATTR_MAX ; i++) {
		nfct_attr_unset(ct2, i);

		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL) == 1);
		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL|NFCT_CMP_STRICT) == 0);
		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL|NFCT_CMP_MASK) == 0);
	}

	for (i=0; i < ATTR_MAX ; i++)
		assert(test_nfct_cmp_api_single(ct1, ct2, i) == 0);

	nfct_copy(ct2, ct1, NFCT_CP_OVERRIDE);
	for (i=0; i < ATTR_MAX ; i++) {
		nfct_attr_unset(ct1, i);
		nfct_attr_unset(ct2, i);

		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL) == 1);
		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL|NFCT_CMP_STRICT) == 1);
		assert(nfct_cmp(ct1, ct2, NFCT_CMP_ALL|NFCT_CMP_MASK) == 1);
	}
	nfct_destroy(ct1);
	nfct_destroy(ct2);
}

static void test_nfexp_cmp_api(struct nf_expect *ex1, struct nf_expect *ex2)
{
	int i;

	printf("== test expect cmp API ==\n");

	/* XXX: missing nfexp_copy API. */
	memcpy(ex1, ex2, nfexp_maxsize());

	assert(nfexp_cmp(ex1, ex2, 0) == 1);
	assert(nfexp_cmp(ex1, ex2, NFCT_CMP_STRICT) == 1);

	assert(nfexp_attr_is_set(ex1, 0) == 1);
	nfexp_attr_unset(ex1, 0);
	assert(nfexp_attr_is_set(ex1, 0) == 0);

	memcpy(ex1, ex2, nfexp_maxsize());
	for (i=0; i < ATTR_EXP_MAX; i++) {
		nfexp_attr_unset(ex1, i);

		assert(nfexp_cmp(ex1, ex2, 0) == 1);
		assert(nfexp_cmp(ex1, ex2, NFCT_CMP_STRICT) == 0);
		assert(nfexp_cmp(ex1, ex2, NFCT_CMP_MASK) == 1);
	}
	memcpy(ex1, ex2, nfexp_maxsize());
	for (i=0; i < ATTR_EXP_MAX; i++) {
		nfexp_attr_unset(ex2, i);

		assert(nfexp_cmp(ex1, ex2, 0) == 1);
		assert(nfexp_cmp(ex1, ex2, NFCT_CMP_MASK) == 0);
	}
	memcpy(ex1, ex2, nfexp_maxsize());
	for (i=0; i < ATTR_EXP_MAX; i++) {
		nfexp_attr_unset(ex1, i);
		nfexp_attr_unset(ex2, i);

		assert(nfexp_cmp(ex1, ex2, 0) == 1);
		assert(nfexp_cmp(ex1, ex2, NFCT_CMP_STRICT) == 1);
		assert(nfexp_cmp(ex1, ex2, NFCT_CMP_MASK) == 1);
	}
	nfexp_destroy(ex1);
	nfexp_destroy(ex2);
}

int main(void)
{
	int ret, i;
	struct nf_conntrack *ct, *ct2, *tmp;
	struct nf_expect *exp, *tmp_exp;
	char data[256];
	const char *val;
	int status;
	struct nfct_bitmask *b, *b2;

	srand(time(NULL));

	/* initialize fake data for testing purposes */
	for (i=0; i<sizeof(data); i++)
		data[i] = 0x01;

	ct = nfct_new();
	if (!ct) {
		perror("nfct_new");
		return 0;
	}
	tmp = nfct_new();
	if (!tmp) {
		perror("nfct_new");
		return 0;
	}

	printf("== test set API ==\n");
	ret = fork();
	if (ret == 0) {
		for (i=0; i<ATTR_MAX; i++)
			nfct_set_attr(ct, i, data);
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	b = nfct_bitmask_new(rand() & 0xffff);
	assert(b);
	b2 = nfct_bitmask_new(rand() & 0xffff);
	assert(b2);

	for (i=0; i<ATTR_MAX; i++) {
		switch (i) {
		case ATTR_CONNLABELS:
			nfct_set_attr(ct, i, b);
			break;
		case ATTR_CONNLABELS_MASK:
			nfct_set_attr(ct, i, b2);
			break;
		default:
			nfct_set_attr(ct, i, data);
			break;
		}
	}

	printf("== test get API ==\n");
	ret = fork();
	if (ret == 0) {
		for (i=0; i<ATTR_MAX; i++)
			nfct_get_attr(ct, i);
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	printf("== validate set API ==\n");
	ret = fork();
	if (ret == 0) {
		for (i=0; i<ATTR_MAX; i++) {
			if (attr_is_readonly(i))
				continue;
			switch(i) {
			/* These attributes require special handling */
			case ATTR_HELPER_INFO:
				nfct_set_attr_l(ct, i, data, sizeof(data));
				break;
			case ATTR_CONNLABELS:
			case ATTR_CONNLABELS_MASK:
				/* already set above */
				break;
			default:
				data[0] = (uint8_t) i;
				nfct_set_attr(ct, i, data);
			}
			val = nfct_get_attr(ct, i);
			switch (i) {
			case ATTR_CONNLABELS:
				assert((void *) val == b);
				continue;
			case ATTR_CONNLABELS_MASK:
				assert((void *) val == b2);
				continue;
			}

			if (val[0] != data[0]) {
				printf("ERROR: set/get operations don't match "
				       "for attribute %d (%x != %x)\n",
					i, val[0], data[0]);
			}
		}
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	printf("== test copy API ==\n");
	ret = fork();
	if (ret == 0) {
		for (i=0; i<ATTR_MAX; i++)
			nfct_copy_attr(tmp, ct, i);
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	ret = fork();
	if (ret == 0) {
		test_nfct_cmp_api(tmp, ct);
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	exp = nfexp_new();
	if (!exp) {
		perror("nfexp_new");
		return 0;
	}
	tmp_exp = nfexp_new();
	if (!tmp_exp) {
		perror("nfexp_new");
		return 0;
	}

	printf("== test expect set API ==\n");
	ret = fork();
	if (ret == 0) {
		for (i=0; i<ATTR_EXP_MAX; i++)
			nfexp_set_attr(exp, i, data);
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	for (i=0; i<ATTR_EXP_MAX; i++)
		nfexp_set_attr(exp, i, data);

	printf("== test expect get API ==\n");
	ret = fork();
	if (ret == 0) {
		for (i=0; i<ATTR_EXP_MAX; i++)
			nfexp_get_attr(exp, i);
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	printf("== validate expect set API ==\n");
	ret = fork();
	if (ret == 0) {
		for (i=0; i<ATTR_EXP_MAX; i++) {
			data[0] = (uint8_t) i;
			nfexp_set_attr(exp, i, data);
			val = nfexp_get_attr(exp, i);
			if (val[0] != data[0]) {
				printf("ERROR: set/get operations don't match "
				       "for attribute %d (%x != %x)\n",
					i, val[0], data[0]);
			}
		}
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	ret = fork();
	if (ret == 0) {
		test_nfexp_cmp_api(tmp_exp, exp);
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	ct2 = nfct_new();
	if (!ct2) {
		perror("nfct_new");
		return 0;
	}

	printf("== test set grp API ==\n");
	ret = fork();
	if (ret == 0) {
		for (i=0; i<ATTR_GRP_MAX; i++)
			nfct_set_attr_grp(ct2, i, data);
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	for (i=0; i<ATTR_GRP_MAX; i++)
		nfct_set_attr_grp(ct2, i, data);

	printf("== test get grp API ==\n");
	ret = fork();
	if (ret == 0) {
		char buf[32]; /* IPv6 group address is 16 bytes * 2 */

		for (i=0; i<ATTR_GRP_MAX; i++)
			nfct_get_attr_grp(ct2, i, buf);
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	printf("== validate set grp API ==\n");
	ret = fork();
	if (ret == 0) {
		for (i=0; i<ATTR_GRP_MAX; i++) {
			char buf[32]; /* IPv6 group address is 16 bytes */

			data[0] = (uint8_t) i;
			nfct_set_attr_grp(ct2, i, data);
			nfct_get_attr_grp(ct2, i, buf);
			/* These attributes cannot be set, ignore them. */
			switch(i) {
			case ATTR_GRP_ORIG_COUNTERS:
			case ATTR_GRP_REPL_COUNTERS:
			case ATTR_GRP_ORIG_ADDR_SRC:
			case ATTR_GRP_ORIG_ADDR_DST:
			case ATTR_GRP_REPL_ADDR_SRC:
			case ATTR_GRP_REPL_ADDR_DST:
				continue;
			}
			if (buf[0] != data[0]) {
				printf("ERROR: set/get operations don't match "
				       "for attribute %d (%x != %x)\n",
					i, buf[0], data[0]);
			}
		}
		exit(0);
	} else {
		wait(&status);
		eval_sigterm(status);
	}

	nfct_destroy(ct2);
	printf("== destroy cloned ct entry ==\n");
	nfct_destroy(ct);
	nfct_destroy(tmp);
	nfexp_destroy(exp);
	nfexp_destroy(tmp_exp);

	printf("OK\n");

	test_nfct_bitmask();

	return EXIT_SUCCESS;
}