summaryrefslogtreecommitdiff
path: root/test/compression.c
blob: 3df90819a1fb7611c32448e9f563ed7fa5cd46b4 (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
// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (c) 2013, The Chromium Authors
 */

#include <common.h>
#include <abuf.h>
#include <bootm.h>
#include <command.h>
#include <gzip.h>
#include <image.h>
#include <log.h>
#include <malloc.h>
#include <mapmem.h>
#include <asm/io.h>

#include <u-boot/lz4.h>
#include <u-boot/zlib.h>
#include <bzlib.h>

#include <lzma/LzmaTypes.h>
#include <lzma/LzmaDec.h>
#include <lzma/LzmaTools.h>

#include <linux/lzo.h>
#include <linux/zstd.h>
#include <test/compression.h>
#include <test/suites.h>
#include <test/ut.h>

static const char plain[] =
	"I am a highly compressable bit of text.\n"
	"I am a highly compressable bit of text.\n"
	"I am a highly compressable bit of text.\n"
	"There are many like me, but this one is mine.\n"
	"If I were any shorter, there wouldn't be much sense in\n"
	"compressing me in the first place. At least with lzo, anyway,\n"
	"which appears to behave poorly in the face of short text\n"
	"messages.\n";

/* bzip2 -c /tmp/plain.txt > /tmp/plain.bz2 */
static const char bzip2_compressed[] =
	"\x42\x5a\x68\x39\x31\x41\x59\x26\x53\x59\xe5\x63\xdd\x09\x00\x00"
	"\x28\x57\x80\x00\x10\x40\x85\x20\x20\x04\x00\x3f\xef\xdf\xf0\x30"
	"\x00\xd6\xd0\x34\x91\x89\xa6\xf5\x4d\x19\x1a\x19\x0d\x02\x34\xd4"
	"\xc9\x00\x34\x34\x00\x02\x48\x41\x35\x4f\xd4\xc6\x88\xd3\x50\x3d"
	"\x4f\x51\x82\x4f\x88\xc3\x0d\x05\x62\x4f\x91\xa3\x52\x1b\xd0\x52"
	"\x41\x4a\xa3\x98\xc2\x6b\xca\xa3\x82\xa5\xac\x8b\x15\x99\x68\xad"
	"\xdf\x29\xd6\xf1\xf7\x5a\x10\xcd\x8c\x26\x61\x94\x95\xfe\x9e\x16"
	"\x18\x28\x69\xd4\x23\x64\xcc\x2b\xe5\xe8\x5f\x00\xa4\x70\x26\x2c"
	"\xee\xbd\x59\x6d\x6a\xec\xfc\x31\xda\x59\x0a\x14\x2a\x60\x1c\xf0"
	"\x04\x86\x73\x9a\xc5\x5b\x87\x3f\x5b\x4c\x93\xe6\xb5\x35\x0d\xa6"
	"\xb1\x2e\x62\x7b\xab\x67\xe7\x99\x2a\x14\x5e\x9f\x64\xcb\x96\xf4"
	"\x0d\x65\xd4\x39\xe6\x8b\x7e\xea\x1c\x03\x69\x97\x83\x58\x91\x96"
	"\xe1\xf0\x9d\xa4\x15\x8b\xb8\xc6\x93\xdc\x3d\xd9\x3c\x22\x55\xef"
	"\xfb\xbb\x2a\xd3\x87\xa2\x8b\x04\xd9\x19\xf8\xe2\xfd\x4f\xdb\x1a"
	"\x07\xc8\x60\xa3\x3f\xf8\xbb\x92\x29\xc2\x84\x87\x2b\x1e\xe8\x48";
static const unsigned long bzip2_compressed_size = sizeof(bzip2_compressed) - 1;

/* lzma -z -c /tmp/plain.txt > /tmp/plain.lzma */
static const char lzma_compressed[] =
	"\x5d\x00\x00\x80\x00\xff\xff\xff\xff\xff\xff\xff\xff\x00\x24\x88"
	"\x08\x26\xd8\x41\xff\x99\xc8\xcf\x66\x3d\x80\xac\xba\x17\xf1\xc8"
	"\xb9\xdf\x49\x37\xb1\x68\xa0\x2a\xdd\x63\xd1\xa7\xa3\x66\xf8\x15"
	"\xef\xa6\x67\x8a\x14\x18\x80\xcb\xc7\xb1\xcb\x84\x6a\xb2\x51\x16"
	"\xa1\x45\xa0\xd6\x3e\x55\x44\x8a\x5c\xa0\x7c\xe5\xa8\xbd\x04\x57"
	"\x8f\x24\xfd\xb9\x34\x50\x83\x2f\xf3\x46\x3e\xb9\xb0\x00\x1a\xf5"
	"\xd3\x86\x7e\x8f\x77\xd1\x5d\x0e\x7c\xe1\xac\xde\xf8\x65\x1f\x4d"
	"\xce\x7f\xa7\x3d\xaa\xcf\x26\xa7\x58\x69\x1e\x4c\xea\x68\x8a\xe5"
	"\x89\xd1\xdc\x4d\xc7\xe0\x07\x42\xbf\x0c\x9d\x06\xd7\x51\xa2\x0b"
	"\x7c\x83\x35\xe1\x85\xdf\xee\xfb\xa3\xee\x2f\x47\x5f\x8b\x70\x2b"
	"\xe1\x37\xf3\x16\xf6\x27\x54\x8a\x33\x72\x49\xea\x53\x7d\x60\x0b"
	"\x21\x90\x66\xe7\x9e\x56\x61\x5d\xd8\xdc\x59\xf0\xac\x2f\xd6\x49"
	"\x6b\x85\x40\x08\x1f\xdf\x26\x25\x3b\x72\x44\xb0\xb8\x21\x2f\xb3"
	"\xd7\x9b\x24\x30\x78\x26\x44\x07\xc3\x33\xd1\x4d\x03\x1b\xe1\xff"
	"\xfd\xf5\x50\x8d\xca";
static const unsigned long lzma_compressed_size = sizeof(lzma_compressed) - 1;

/* lzop -c /tmp/plain.txt > /tmp/plain.lzo */
static const char lzo_compressed[] =
	"\x89\x4c\x5a\x4f\x00\x0d\x0a\x1a\x0a\x10\x30\x20\x60\x09\x40\x01"
	"\x05\x03\x00\x00\x09\x00\x00\x81\xb4\x52\x09\x54\xf1\x00\x00\x00"
	"\x00\x09\x70\x6c\x61\x69\x6e\x2e\x74\x78\x74\x65\xb1\x07\x9c\x00"
	"\x00\x01\x5e\x00\x00\x01\x0f\xc3\xc7\x7a\xe0\x00\x16\x49\x20\x61"
	"\x6d\x20\x61\x20\x68\x69\x67\x68\x6c\x79\x20\x63\x6f\x6d\x70\x72"
	"\x65\x73\x73\x61\x62\x6c\x65\x20\x62\x69\x74\x20\x6f\x66\x20\x74"
	"\x65\x78\x74\x2e\x0a\x20\x2f\x9c\x00\x00\x22\x54\x68\x65\x72\x65"
	"\x20\x61\x72\x65\x20\x6d\x61\x6e\x79\x20\x6c\x69\x6b\x65\x20\x6d"
	"\x65\x2c\x20\x62\x75\x74\x20\x74\x68\x69\x73\x20\x6f\x6e\x65\x20"
	"\x69\x73\x20\x6d\x69\x6e\x65\x2e\x0a\x49\x66\x20\x49\x20\x77\x84"
	"\x06\x0a\x6e\x79\x20\x73\x68\x6f\x72\x74\x65\x72\x2c\x20\x74\x90"
	"\x08\x00\x08\x77\x6f\x75\x6c\x64\x6e\x27\x74\x20\x62\x65\x20\x6d"
	"\x75\x63\x68\x20\x73\x65\x6e\x73\x65\x20\x69\x6e\x0a\xf8\x19\x02"
	"\x69\x6e\x67\x20\x6d\x64\x02\x64\x06\x00\x5a\x20\x66\x69\x72\x73"
	"\x74\x20\x70\x6c\x61\x63\x65\x2e\x20\x41\x74\x20\x6c\x65\x61\x73"
	"\x74\x20\x77\x69\x74\x68\x20\x6c\x7a\x6f\x2c\x20\x61\x6e\x79\x77"
	"\x61\x79\x2c\x0a\x77\x68\x69\x63\x68\x20\x61\x70\x70\x65\x61\x72"
	"\x73\x20\x74\x6f\x20\x62\x65\x68\x61\x76\x65\x20\x70\x6f\x6f\x72"
	"\x6c\x79\x20\x69\x6e\x20\x74\x68\x65\x20\x66\x61\x63\x65\x20\x6f"
	"\x66\x20\x73\x68\x6f\x72\x74\x20\x74\x65\x78\x74\x0a\x6d\x65\x73"
	"\x73\x61\x67\x65\x73\x2e\x0a\x11\x00\x00\x00\x00\x00\x00";
static const unsigned long lzo_compressed_size = sizeof(lzo_compressed) - 1;

/* lz4 -z /tmp/plain.txt > /tmp/plain.lz4 */
static const char lz4_compressed[] =
	"\x04\x22\x4d\x18\x64\x70\xb9\x01\x01\x00\x00\xff\x19\x49\x20\x61"
	"\x6d\x20\x61\x20\x68\x69\x67\x68\x6c\x79\x20\x63\x6f\x6d\x70\x72"
	"\x65\x73\x73\x61\x62\x6c\x65\x20\x62\x69\x74\x20\x6f\x66\x20\x74"
	"\x65\x78\x74\x2e\x0a\x28\x00\x3d\xf1\x25\x54\x68\x65\x72\x65\x20"
	"\x61\x72\x65\x20\x6d\x61\x6e\x79\x20\x6c\x69\x6b\x65\x20\x6d\x65"
	"\x2c\x20\x62\x75\x74\x20\x74\x68\x69\x73\x20\x6f\x6e\x65\x20\x69"
	"\x73\x20\x6d\x69\x6e\x65\x2e\x0a\x49\x66\x20\x49\x20\x77\x32\x00"
	"\xd1\x6e\x79\x20\x73\x68\x6f\x72\x74\x65\x72\x2c\x20\x74\x45\x00"
	"\xf4\x0b\x77\x6f\x75\x6c\x64\x6e\x27\x74\x20\x62\x65\x20\x6d\x75"
	"\x63\x68\x20\x73\x65\x6e\x73\x65\x20\x69\x6e\x0a\xcf\x00\x50\x69"
	"\x6e\x67\x20\x6d\x12\x00\x00\x32\x00\xf0\x11\x20\x66\x69\x72\x73"
	"\x74\x20\x70\x6c\x61\x63\x65\x2e\x20\x41\x74\x20\x6c\x65\x61\x73"
	"\x74\x20\x77\x69\x74\x68\x20\x6c\x7a\x6f\x2c\x63\x00\xf5\x14\x77"
	"\x61\x79\x2c\x0a\x77\x68\x69\x63\x68\x20\x61\x70\x70\x65\x61\x72"
	"\x73\x20\x74\x6f\x20\x62\x65\x68\x61\x76\x65\x20\x70\x6f\x6f\x72"
	"\x6c\x79\x4e\x00\x30\x61\x63\x65\x27\x01\x01\x95\x00\x01\x2d\x01"
	"\xb0\x0a\x6d\x65\x73\x73\x61\x67\x65\x73\x2e\x0a\x00\x00\x00\x00"
	"\x9d\x12\x8c\x9d";
static const unsigned long lz4_compressed_size = sizeof(lz4_compressed) - 1;

/* zstd -19 -c /tmp/plain.txt > /tmp/plain.zst */
static const char zstd_compressed[] =
	"\x28\xb5\x2f\xfd\x64\x5e\x00\xbd\x05\x00\x02\x0e\x26\x1a\x70\x17"
	"\xb8\x0d\x0c\x53\x5c\x9d\x97\xee\xa0\x5d\x84\x89\x3f\x5c\x7a\x78"
	"\x00\x80\x80\x0f\xe8\xdf\xaf\x06\x66\xd0\x23\xa6\x7a\x64\x8e\xf4"
	"\x0d\x5b\x47\x65\x26\x7e\x81\xdd\x0b\xe7\x5a\x95\x3d\x49\xcc\x67"
	"\xe0\x2d\x46\x58\xb6\xac\x64\x16\xf2\xe0\xf8\x16\x17\xaf\xda\x8f"
	"\x37\xc0\xc3\x0d\x3b\x89\x57\x15\x1e\x46\x46\x12\x9a\x84\xbe\xa6"
	"\xab\xcf\x50\x90\x5f\x78\x01\xd2\xc0\x51\x72\x59\x0b\xea\xab\xf2"
	"\xd4\x2b\x2d\x26\x7c\x10\x66\x78\x42\x64\x45\x3f\xa5\x15\x6f\xbd"
	"\x4a\x61\xe1\xc8\x27\xc0\xe3\x95\x0c\xf9\xca\x7c\xf5\x13\x30\xc3"
	"\x1a\x7c\x7d\xa4\x17\x0b\xff\x14\xa6\x7a\x95\xa0\x34\xbc\xce\x21"
	"\x78\x36\x23\x33\x11\x09\x00\x60\x13\x00\x63\xa3\x8e\x28\x94\x55"
	"\x15\xb6\x26\x68\x05\x4f\x23\x12\xee\x53\x55\x2d\x44\x2f\x54\x95"
	"\x01\xe4\xf4\x6e\xfa";
static const unsigned long zstd_compressed_size = sizeof(zstd_compressed) - 1;


#define TEST_BUFFER_SIZE	512

typedef int (*mutate_func)(struct unit_test_state *uts, void *, unsigned long,
			   void *, unsigned long, unsigned long *);

static int compress_using_gzip(struct unit_test_state *uts,
			       void *in, unsigned long in_size,
			       void *out, unsigned long out_max,
			       unsigned long *out_size)
{
	int ret;
	unsigned long inout_size = out_max;

	ret = gzip(out, &inout_size, in, in_size);
	if (out_size)
		*out_size = inout_size;

	return ret;
}

static int uncompress_using_gzip(struct unit_test_state *uts,
				 void *in, unsigned long in_size,
				 void *out, unsigned long out_max,
				 unsigned long *out_size)
{
	int ret;
	unsigned long inout_size = in_size;

	ret = gunzip(out, out_max, in, &inout_size);
	if (out_size)
		*out_size = inout_size;

	return ret;
}

static int compress_using_bzip2(struct unit_test_state *uts,
				void *in, unsigned long in_size,
				void *out, unsigned long out_max,
				unsigned long *out_size)
{
	/* There is no bzip2 compression in u-boot, so fake it. */
	ut_asserteq(in_size, strlen(plain));
	ut_asserteq_mem(plain, in, in_size);

	if (bzip2_compressed_size > out_max)
		return -1;

	memcpy(out, bzip2_compressed, bzip2_compressed_size);
	if (out_size)
		*out_size = bzip2_compressed_size;

	return 0;
}

static int uncompress_using_bzip2(struct unit_test_state *uts,
				  void *in, unsigned long in_size,
				  void *out, unsigned long out_max,
				  unsigned long *out_size)
{
	int ret;
	unsigned int inout_size = out_max;

	ret = BZ2_bzBuffToBuffDecompress(out, &inout_size, in, in_size,
			CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
	if (out_size)
		*out_size = inout_size;

	return (ret != BZ_OK);
}

static int compress_using_lzma(struct unit_test_state *uts,
			       void *in, unsigned long in_size,
			       void *out, unsigned long out_max,
			       unsigned long *out_size)
{
	/* There is no lzma compression in u-boot, so fake it. */
	ut_asserteq(in_size,  strlen(plain));
	ut_asserteq_mem(plain, in, in_size);

	if (lzma_compressed_size > out_max)
		return -1;

	memcpy(out, lzma_compressed, lzma_compressed_size);
	if (out_size)
		*out_size = lzma_compressed_size;

	return 0;
}

static int uncompress_using_lzma(struct unit_test_state *uts,
				 void *in, unsigned long in_size,
				 void *out, unsigned long out_max,
				 unsigned long *out_size)
{
	int ret;
	SizeT inout_size = out_max;

	ret = lzmaBuffToBuffDecompress(out, &inout_size, in, in_size);
	if (out_size)
		*out_size = inout_size;

	return (ret != SZ_OK);
}

static int compress_using_lzo(struct unit_test_state *uts,
			      void *in, unsigned long in_size,
			      void *out, unsigned long out_max,
			      unsigned long *out_size)
{
	/* There is no lzo compression in u-boot, so fake it. */
	ut_asserteq(in_size,  strlen(plain));
	ut_asserteq_mem(plain, in, in_size);

	if (lzo_compressed_size > out_max)
		return -1;

	memcpy(out, lzo_compressed, lzo_compressed_size);
	if (out_size)
		*out_size = lzo_compressed_size;

	return 0;
}

static int uncompress_using_lzo(struct unit_test_state *uts,
				void *in, unsigned long in_size,
				void *out, unsigned long out_max,
				unsigned long *out_size)
{
	int ret;
	size_t input_size = in_size;
	size_t output_size = out_max;

	ret = lzop_decompress(in, input_size, out, &output_size);
	if (out_size)
		*out_size = output_size;

	return (ret != LZO_E_OK);
}

static int compress_using_lz4(struct unit_test_state *uts,
			      void *in, unsigned long in_size,
			      void *out, unsigned long out_max,
			      unsigned long *out_size)
{
	/* There is no lz4 compression in u-boot, so fake it. */
	ut_asserteq(in_size,  strlen(plain));
	ut_asserteq_mem(plain, in, in_size);

	if (lz4_compressed_size > out_max)
		return -1;

	memcpy(out, lz4_compressed, lz4_compressed_size);
	if (out_size)
		*out_size = lz4_compressed_size;

	return 0;
}

static int uncompress_using_lz4(struct unit_test_state *uts,
				void *in, unsigned long in_size,
				void *out, unsigned long out_max,
				unsigned long *out_size)
{
	int ret;
	size_t input_size = in_size;
	size_t output_size = out_max;

	ret = ulz4fn(in, input_size, out, &output_size);
	if (out_size)
		*out_size = output_size;

	return (ret != 0);
}

static int compress_using_zstd(struct unit_test_state *uts,
			       void *in, unsigned long in_size,
			       void *out, unsigned long out_max,
			       unsigned long *out_size)
{
	/* There is no zstd compression in u-boot, so fake it. */
	ut_asserteq(in_size, strlen(plain));
	ut_asserteq_mem(plain, in, in_size);

	if (zstd_compressed_size > out_max)
		return -1;

	memcpy(out, zstd_compressed, zstd_compressed_size);
	if (out_size)
		*out_size = zstd_compressed_size;

	return 0;
}

static int uncompress_using_zstd(struct unit_test_state *uts,
				 void *in, unsigned long in_size,
				 void *out, unsigned long out_max,
				 unsigned long *out_size)
{
	struct abuf in_buf, out_buf;
	int ret;

	abuf_init_set(&in_buf, in, in_size);
	abuf_init_set(&out_buf, out, out_max);

	ret = zstd_decompress(&in_buf, &out_buf);
	if (ret >= 0) {
		*out_size = ret;
		ret = 0;
	}

	return ret;
}

#define errcheck(statement) if (!(statement)) { \
	fprintf(stderr, "\tFailed: %s\n", #statement); \
	ret = 1; \
	goto out; \
}

struct buf_state {
	ulong orig_size;
	ulong compressed_size;
	ulong uncompressed_size;
	void *orig_buf;
	void *compressed_buf;
	void *uncompressed_buf;
	void *compare_buf;
};

static int run_test_internal(struct unit_test_state *uts, char *name,
			     mutate_func compress, mutate_func uncompress,
			     struct buf_state *buf)
{
	int ret;

	/* Compress works as expected. */
	printf("\torig_size:%lu\n", buf->orig_size);
	memset(buf->compressed_buf, 'A', TEST_BUFFER_SIZE);
	ut_assertok(compress(uts, buf->orig_buf, buf->orig_size,
			  buf->compressed_buf, buf->compressed_size,
			  &buf->compressed_size));
	printf("\tcompressed_size:%lu\n", buf->compressed_size);
	ut_assert(buf->compressed_size > 0);
	ut_assert(buf->compressed_size < buf->orig_size);
	ut_assert(((char *)buf->compressed_buf)[buf->compressed_size - 1]
			!= 'A');
	ut_asserteq(((char *)buf->compressed_buf)[buf->compressed_size], 'A');

	/* Uncompresses with space remaining. */
	ut_assertok(uncompress(uts, buf->compressed_buf, buf->compressed_size,
			    buf->uncompressed_buf, buf->uncompressed_size,
			    &buf->uncompressed_size));
	printf("\tuncompressed_size:%lu\n", buf->uncompressed_size);
	ut_asserteq(buf->uncompressed_size, buf->orig_size);
	ut_asserteq_mem(buf->orig_buf, buf->uncompressed_buf, buf->orig_size);

	/* Uncompresses with exactly the right size output buffer. */
	memset(buf->uncompressed_buf, 'A', TEST_BUFFER_SIZE);
	ut_assertok(uncompress(uts, buf->compressed_buf, buf->compressed_size,
			    buf->uncompressed_buf, buf->orig_size,
			    &buf->uncompressed_size));
	ut_asserteq(buf->uncompressed_size, buf->orig_size);
	ut_asserteq_mem(buf->orig_buf, buf->uncompressed_buf, buf->orig_size);
	ut_asserteq(((char *)buf->uncompressed_buf)[buf->orig_size], 'A');

	/* Uncompresses with trailing garbage in input buffer. */
	memset(buf->uncompressed_buf, 'A', TEST_BUFFER_SIZE);
	ut_assertok(uncompress(uts, buf->compressed_buf, buf->compressed_size + 4,
			    buf->uncompressed_buf, buf->uncompressed_size,
			    &buf->uncompressed_size));
	ut_asserteq(buf->uncompressed_size, buf->orig_size);
	ut_asserteq_mem(buf->orig_buf, buf->uncompressed_buf, buf->orig_size);

	/* Make sure compression does not over-run. */
	memset(buf->compare_buf, 'A', TEST_BUFFER_SIZE);
	ret = compress(uts, buf->orig_buf, buf->orig_size,
		       buf->compare_buf, buf->compressed_size - 1,
		       NULL);
	ut_asserteq(((char *)buf->compare_buf)[buf->compressed_size], 'A');
	ut_assert(ret != 0);
	printf("\tcompress does not overrun\n");

	/* Make sure decompression does not over-run. */
	memset(buf->compare_buf, 'A', TEST_BUFFER_SIZE);
	ret = uncompress(uts, buf->compressed_buf, buf->compressed_size,
			 buf->compare_buf, buf->uncompressed_size - 1,
			 NULL);
	ut_asserteq(((char *)buf->compare_buf)[buf->uncompressed_size - 1], 'A');
	ut_assert(ret != 0);
	printf("\tuncompress does not overrun\n");

	/* Got here, everything is fine. */
	return 0;
}

static int run_test(struct unit_test_state *uts, char *name,
		    mutate_func compress, mutate_func uncompress)
{
	struct buf_state sbuf, *buf = &sbuf;
	int ret;

	printf(" testing %s ...\n", name);

	buf->orig_buf = (void *)plain;
	buf->orig_size = strlen(buf->orig_buf); /* Trailing NUL not included */
	errcheck(buf->orig_size > 0);

	buf->compressed_size = TEST_BUFFER_SIZE;
	buf->uncompressed_size = TEST_BUFFER_SIZE;
	buf->compressed_buf = malloc(buf->compressed_size);
	errcheck(buf->compressed_buf);
	buf->uncompressed_buf = malloc(buf->uncompressed_size);
	errcheck(buf->uncompressed_buf);
	buf->compare_buf = malloc(buf->uncompressed_size);
	errcheck(buf->compare_buf);

	ret = run_test_internal(uts, name, compress, uncompress, buf);
out:
	printf(" %s: %s\n", name, ret == 0 ? "ok" : "FAILED");

	free(buf->compare_buf);
	free(buf->uncompressed_buf);
	free(buf->compressed_buf);

	return ret;
}

static int compression_test_gzip(struct unit_test_state *uts)
{
	return run_test(uts, "gzip", compress_using_gzip,
			uncompress_using_gzip);
}
COMPRESSION_TEST(compression_test_gzip, 0);

static int compression_test_bzip2(struct unit_test_state *uts)
{
	return run_test(uts, "bzip2", compress_using_bzip2,
			uncompress_using_bzip2);
}
COMPRESSION_TEST(compression_test_bzip2, 0);

static int compression_test_lzma(struct unit_test_state *uts)
{
	return run_test(uts, "lzma", compress_using_lzma,
			uncompress_using_lzma);
}
COMPRESSION_TEST(compression_test_lzma, 0);

static int compression_test_lzo(struct unit_test_state *uts)
{
	return run_test(uts, "lzo", compress_using_lzo, uncompress_using_lzo);
}
COMPRESSION_TEST(compression_test_lzo, 0);

static int compression_test_lz4(struct unit_test_state *uts)
{
	return run_test(uts, "lz4", compress_using_lz4, uncompress_using_lz4);
}
COMPRESSION_TEST(compression_test_lz4, 0);

static int compression_test_zstd(struct unit_test_state *uts)
{
	return run_test(uts, "zstd", compress_using_zstd,
			uncompress_using_zstd);
}
COMPRESSION_TEST(compression_test_zstd, 0);

static int compress_using_none(struct unit_test_state *uts,
			       void *in, unsigned long in_size,
			       void *out, unsigned long out_max,
			       unsigned long *out_size)
{
	/* Here we just copy */
	memcpy(out, in, in_size);
	*out_size = in_size;

	return 0;
}

/**
 * run_bootm_test() - Run tests on the bootm decompression function
 *
 * @comp_type:	Compression type to test
 * @compress:	Our function to compress data
 * Return: 0 if OK, non-zero on failure
 */
static int run_bootm_test(struct unit_test_state *uts, int comp_type,
			  mutate_func compress)
{
	ulong compress_size = 1024;
	void *compress_buff;
	int unc_len;
	int err = 0;
	const ulong image_start = 0;
	const ulong load_addr = 0x1000;
	ulong load_end;

	printf("Testing: %s\n", genimg_get_comp_name(comp_type));
	compress_buff = map_sysmem(image_start, 0);
	unc_len = strlen(plain);
	compress(uts, (void *)plain, unc_len, compress_buff, compress_size,
		 &compress_size);
	err = image_decomp(comp_type, load_addr, image_start,
			   IH_TYPE_KERNEL, map_sysmem(load_addr, 0),
			   compress_buff, compress_size, unc_len,
			   &load_end);
	ut_assertok(err);
	err = image_decomp(comp_type, load_addr, image_start,
			   IH_TYPE_KERNEL, map_sysmem(load_addr, 0),
			   compress_buff, compress_size, unc_len - 1,
			   &load_end);
	ut_assert(err);

	/* We can't detect corruption when not decompressing */
	if (comp_type == IH_COMP_NONE)
		return 0;
	memset(compress_buff + compress_size / 2, '\x49',
	       compress_size / 2);
	err = image_decomp(comp_type, load_addr, image_start,
			   IH_TYPE_KERNEL, map_sysmem(load_addr, 0),
			   compress_buff, compress_size, 0x10000,
			   &load_end);
	ut_assert(err);

	return 0;
}

static int compression_test_bootm_gzip(struct unit_test_state *uts)
{
	return run_bootm_test(uts, IH_COMP_GZIP, compress_using_gzip);
}
COMPRESSION_TEST(compression_test_bootm_gzip, 0);

static int compression_test_bootm_bzip2(struct unit_test_state *uts)
{
	return run_bootm_test(uts, IH_COMP_BZIP2, compress_using_bzip2);
}
COMPRESSION_TEST(compression_test_bootm_bzip2, 0);

static int compression_test_bootm_lzma(struct unit_test_state *uts)
{
	return run_bootm_test(uts, IH_COMP_LZMA, compress_using_lzma);
}
COMPRESSION_TEST(compression_test_bootm_lzma, 0);

static int compression_test_bootm_lzo(struct unit_test_state *uts)
{
	return run_bootm_test(uts, IH_COMP_LZO, compress_using_lzo);
}
COMPRESSION_TEST(compression_test_bootm_lzo, 0);

static int compression_test_bootm_lz4(struct unit_test_state *uts)
{
	return run_bootm_test(uts, IH_COMP_LZ4, compress_using_lz4);
}
COMPRESSION_TEST(compression_test_bootm_lz4, 0);

static int compression_test_bootm_zstd(struct unit_test_state *uts)
{
	return run_bootm_test(uts, IH_COMP_ZSTD, compress_using_zstd);
}
COMPRESSION_TEST(compression_test_bootm_zstd, 0);

static int compression_test_bootm_none(struct unit_test_state *uts)
{
	return run_bootm_test(uts, IH_COMP_NONE, compress_using_none);
}
COMPRESSION_TEST(compression_test_bootm_none, 0);

int do_ut_compression(struct cmd_tbl *cmdtp, int flag, int argc,
		      char *const argv[])
{
	struct unit_test *tests = UNIT_TEST_SUITE_START(compression_test);
	const int n_ents = UNIT_TEST_SUITE_COUNT(compression_test);

	return cmd_ut_category("compression", "compression_test_",
			       tests, n_ents, argc, argv);
}