Fio 1.50-rc2
[fio.git] / verify.c
CommitLineData
e29d1b70
JA
1/*
2 * IO verification helpers
3 */
4#include <unistd.h>
5#include <fcntl.h>
6#include <string.h>
97af62ce 7#include <assert.h>
e8462bd8 8#include <pthread.h>
e29d1b70
JA
9
10#include "fio.h"
4f5af7b2 11#include "verify.h"
e8462bd8 12#include "smalloc.h"
0d29de83 13#include "trim.h"
637ef8d9 14#include "lib/rand.h"
e29d1b70 15
eef6eea1
JA
16#include "crc/md5.h"
17#include "crc/crc64.h"
18#include "crc/crc32.h"
bac39e0e 19#include "crc/crc32c.h"
eef6eea1
JA
20#include "crc/crc16.h"
21#include "crc/crc7.h"
22#include "crc/sha256.h"
23#include "crc/sha512.h"
7c353ceb 24#include "crc/sha1.h"
cd14cc10 25
7d9fb455
JA
26static void populate_hdr(struct thread_data *td, struct io_u *io_u,
27 struct verify_header *hdr, unsigned int header_num,
28 unsigned int header_len);
29
30void fill_pattern(struct thread_data *td, void *p, unsigned int len, struct io_u *io_u, unsigned long seed, int use_seed)
90059d65
JA
31{
32 switch (td->o.verify_pattern_bytes) {
33 case 0:
bd6f78b2 34 dprint(FD_VERIFY, "fill random bytes len=%u\n", len);
7d9fb455
JA
35 if (use_seed)
36 __fill_random_buf(p, len, seed);
37 else
38 io_u->rand_seed = fill_random_buf(p, len);
90059d65
JA
39 break;
40 case 1:
10e8a7b3 41 if (io_u->buf_filled_len >= len) {
cbe8d756
RR
42 dprint(FD_VERIFY, "using already filled verify pattern b=0 len=%u\n", len);
43 return;
44 }
bd6f78b2 45 dprint(FD_VERIFY, "fill verify pattern b=0 len=%u\n", len);
0e92f873 46 memset(p, td->o.verify_pattern[0], len);
cbe8d756 47 io_u->buf_filled_len = len;
90059d65 48 break;
0e92f873
RR
49 default: {
50 unsigned int i = 0, size = 0;
90059d65
JA
51 unsigned char *b = p;
52
10e8a7b3 53 if (io_u->buf_filled_len >= len) {
cbe8d756
RR
54 dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
55 td->o.verify_pattern_bytes, len);
56 return;
57 }
bd6f78b2
JA
58 dprint(FD_VERIFY, "fill verify pattern b=%d len=%u\n",
59 td->o.verify_pattern_bytes, len);
60
90059d65 61 while (i < len) {
0e92f873
RR
62 size = td->o.verify_pattern_bytes;
63 if (size > (len - i))
64 size = len - i;
65 memcpy(b+i, td->o.verify_pattern, size);
66 i += size;
90059d65 67 }
cbe8d756 68 io_u->buf_filled_len = len;
90059d65
JA
69 break;
70 }
71 }
72}
73
c50ca7bd
JA
74static void fill_pattern_headers(struct thread_data *td, struct io_u *io_u,
75 unsigned long seed, int use_seed)
76{
77 unsigned int hdr_inc, header_num;
78 struct verify_header *hdr;
79 void *p = io_u->buf;
80
81 fill_pattern(td, p, io_u->buflen, io_u, seed, use_seed);
82
83 hdr_inc = io_u->buflen;
84 if (td->o.verify_interval)
85 hdr_inc = td->o.verify_interval;
86
87 header_num = 0;
88 for (; p < io_u->buf + io_u->buflen; p += hdr_inc) {
89 hdr = p;
90 populate_hdr(td, io_u, hdr, header_num, hdr_inc);
91 header_num++;
92 }
93}
94
4764aec9 95static void memswp(void *buf1, void *buf2, unsigned int len)
546a9142 96{
dee6de74
SL
97 char swap[200];
98
99 assert(len <= sizeof(swap));
90059d65 100
546a9142
SL
101 memcpy(&swap, buf1, len);
102 memcpy(buf1, buf2, len);
103 memcpy(buf2, &swap, len);
104}
105
e29d1b70
JA
106static void hexdump(void *buffer, int len)
107{
108 unsigned char *p = buffer;
109 int i;
110
111 for (i = 0; i < len; i++)
bfacf389
JA
112 log_err("%02x", p[i]);
113 log_err("\n");
e29d1b70
JA
114}
115
87677832
JA
116/*
117 * Prepare for seperation of verify_header and checksum header
118 */
546dfd9f 119static inline unsigned int __hdr_size(int verify_type)
87677832 120{
03e20d68 121 unsigned int len = 0;
87677832 122
546dfd9f
JA
123 switch (verify_type) {
124 case VERIFY_NONE:
125 case VERIFY_NULL:
126 len = 0;
127 break;
128 case VERIFY_MD5:
129 len = sizeof(struct vhdr_md5);
130 break;
131 case VERIFY_CRC64:
132 len = sizeof(struct vhdr_crc64);
133 break;
bac39e0e 134 case VERIFY_CRC32C:
546dfd9f 135 case VERIFY_CRC32:
3845591f 136 case VERIFY_CRC32C_INTEL:
546dfd9f
JA
137 len = sizeof(struct vhdr_crc32);
138 break;
139 case VERIFY_CRC16:
140 len = sizeof(struct vhdr_crc16);
141 break;
142 case VERIFY_CRC7:
143 len = sizeof(struct vhdr_crc7);
144 break;
145 case VERIFY_SHA256:
146 len = sizeof(struct vhdr_sha256);
147 break;
148 case VERIFY_SHA512:
149 len = sizeof(struct vhdr_sha512);
150 break;
7437ee87
SL
151 case VERIFY_META:
152 len = sizeof(struct vhdr_meta);
153 break;
7c353ceb
JA
154 case VERIFY_SHA1:
155 len = sizeof(struct vhdr_sha1);
156 break;
546dfd9f
JA
157 default:
158 log_err("fio: unknown verify header!\n");
159 assert(0);
160 }
161
162 return len + sizeof(struct verify_header);
87677832
JA
163}
164
165static inline unsigned int hdr_size(struct verify_header *hdr)
166{
546dfd9f
JA
167 return __hdr_size(hdr->verify_type);
168}
169
170static void *hdr_priv(struct verify_header *hdr)
171{
172 void *priv = hdr;
173
174 return priv + sizeof(struct verify_header);
87677832
JA
175}
176
936216f8
JA
177/*
178 * Verify container, pass info to verify handlers and allow them to
179 * pass info back in case of error
180 */
181struct vcont {
182 /*
183 * Input
184 */
185 struct io_u *io_u;
186 unsigned int hdr_num;
7d9fb455 187 struct thread_data *td;
936216f8
JA
188
189 /*
190 * Output, only valid in case of error
191 */
bfacf389
JA
192 const char *name;
193 void *good_crc;
194 void *bad_crc;
936216f8
JA
195 unsigned int crc_len;
196};
197
c50ca7bd
JA
198static void dump_buf(char *buf, unsigned int len, unsigned long long offset,
199 const char *type, struct fio_file *f)
7d9fb455 200{
c50ca7bd 201 char fname[256];
7d9fb455
JA
202 int ret, fd;
203
c50ca7bd
JA
204 strcpy(fname, f->file_name);
205 basename(fname);
206
207 sprintf(fname + strlen(fname), ".%llu.%s", offset, type);
7d9fb455
JA
208
209 fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 0644);
210 if (fd < 0) {
211 perror("open verify buf file");
212 return;
213 }
214
215 while (len) {
216 ret = write(fd, buf, len);
217 if (!ret)
218 break;
219 else if (ret < 0) {
220 perror("write verify buf file");
221 break;
222 }
223 len -= ret;
224 buf += ret;
225 }
226
227 close(fd);
c50ca7bd 228 log_err(" %s data dumped as %s\n", type, fname);
7d9fb455
JA
229}
230
c50ca7bd
JA
231/*
232 * Dump the contents of the read block and re-generate the correct data
233 * and dump that too.
234 */
7d9fb455
JA
235static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
236{
237 struct thread_data *td = vc->td;
238 struct io_u *io_u = vc->io_u;
239 unsigned long hdr_offset;
7d9fb455 240 struct io_u dummy;
c50ca7bd 241 void *buf;
7d9fb455 242
c50ca7bd
JA
243 /*
244 * Dump the contents we just read off disk
245 */
7d9fb455
JA
246 hdr_offset = vc->hdr_num * hdr->len;
247
c50ca7bd
JA
248 dump_buf(io_u->buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
249 "received", vc->io_u->file);
7d9fb455 250
c50ca7bd
JA
251 /*
252 * Allocate a new buf and re-generate the original data
253 */
254 buf = malloc(io_u->buflen);
7d9fb455 255 dummy = *io_u;
c50ca7bd 256 dummy.buf = buf;
4aae38a6 257 dummy.rand_seed = hdr->rand_seed;
7d9fb455 258
c50ca7bd 259 fill_pattern_headers(td, &dummy, hdr->rand_seed, 1);
7d9fb455 260
c50ca7bd
JA
261 dump_buf(buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
262 "expected", vc->io_u->file);
7d9fb455
JA
263 free(buf);
264}
265
bfacf389
JA
266static void log_verify_failure(struct verify_header *hdr, struct vcont *vc)
267{
268 unsigned long long offset;
269
270 offset = vc->io_u->offset;
271 offset += vc->hdr_num * hdr->len;
32c17adf
JA
272 log_err("%.8s: verify failed at file %s offset %llu, length %u\n",
273 vc->name, vc->io_u->file->file_name, offset, hdr->len);
bfacf389
JA
274
275 if (vc->good_crc && vc->bad_crc) {
276 log_err(" Expected CRC: ");
277 hexdump(vc->good_crc, vc->crc_len);
278 log_err(" Received CRC: ");
279 hexdump(vc->bad_crc, vc->crc_len);
280 }
7d9fb455
JA
281
282 dump_verify_buffers(hdr, vc);
bfacf389
JA
283}
284
d9f2caf3
JA
285/*
286 * Return data area 'header_num'
287 */
936216f8 288static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc)
d9f2caf3 289{
936216f8 290 return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(hdr);
d9f2caf3
JA
291}
292
7437ee87 293static int verify_io_u_meta(struct verify_header *hdr, struct thread_data *td,
936216f8 294 struct vcont *vc)
7437ee87
SL
295{
296 struct vhdr_meta *vh = hdr_priv(hdr);
936216f8 297 struct io_u *io_u = vc->io_u;
7437ee87 298
bd6f78b2
JA
299 dprint(FD_VERIFY, "meta verify io_u %p, len %u\n", io_u, hdr->len);
300
bfacf389
JA
301 if (vh->offset == io_u->offset + vc->hdr_num * td->o.verify_interval)
302 return 0;
7437ee87 303
bfacf389
JA
304 vc->name = "meta";
305 log_verify_failure(hdr, vc);
306 return EILSEQ;
7437ee87
SL
307}
308
936216f8 309static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc)
cd14cc10 310{
936216f8 311 void *p = io_u_verify_off(hdr, vc);
546dfd9f 312 struct vhdr_sha512 *vh = hdr_priv(hdr);
cd14cc10
JA
313 uint8_t sha512[128];
314 struct sha512_ctx sha512_ctx = {
315 .buf = sha512,
316 };
317
936216f8 318 dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 319
cd14cc10 320 sha512_init(&sha512_ctx);
87677832 321 sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr));
cd14cc10 322
bfacf389
JA
323 if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512)))
324 return 0;
cd14cc10 325
bfacf389
JA
326 vc->name = "sha512";
327 vc->good_crc = vh->sha512;
328 vc->bad_crc = sha512_ctx.buf;
329 vc->crc_len = sizeof(vh->sha512);
330 log_verify_failure(hdr, vc);
331 return EILSEQ;
cd14cc10
JA
332}
333
936216f8 334static int verify_io_u_sha256(struct verify_header *hdr, struct vcont *vc)
cd14cc10 335{
936216f8 336 void *p = io_u_verify_off(hdr, vc);
546dfd9f 337 struct vhdr_sha256 *vh = hdr_priv(hdr);
bc77f56f 338 uint8_t sha256[64];
cd14cc10
JA
339 struct sha256_ctx sha256_ctx = {
340 .buf = sha256,
341 };
342
936216f8 343 dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 344
cd14cc10 345 sha256_init(&sha256_ctx);
87677832 346 sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr));
cd14cc10 347
bfacf389
JA
348 if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256)))
349 return 0;
cd14cc10 350
bfacf389
JA
351 vc->name = "sha256";
352 vc->good_crc = vh->sha256;
353 vc->bad_crc = sha256_ctx.buf;
354 vc->crc_len = sizeof(vh->sha256);
355 log_verify_failure(hdr, vc);
356 return EILSEQ;
cd14cc10
JA
357}
358
936216f8 359static int verify_io_u_sha1(struct verify_header *hdr, struct vcont *vc)
7c353ceb 360{
936216f8 361 void *p = io_u_verify_off(hdr, vc);
7c353ceb
JA
362 struct vhdr_sha1 *vh = hdr_priv(hdr);
363 uint32_t sha1[5];
364 struct sha1_ctx sha1_ctx = {
365 .H = sha1,
366 };
367
936216f8 368 dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len);
7c353ceb
JA
369
370 sha1_init(&sha1_ctx);
371 sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr));
372
bfacf389
JA
373 if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1)))
374 return 0;
7c353ceb 375
bfacf389
JA
376 vc->name = "sha1";
377 vc->good_crc = vh->sha1;
378 vc->bad_crc = sha1_ctx.H;
379 vc->crc_len = sizeof(vh->sha1);
380 log_verify_failure(hdr, vc);
381 return EILSEQ;
7c353ceb
JA
382}
383
936216f8 384static int verify_io_u_crc7(struct verify_header *hdr, struct vcont *vc)
1e154bdb 385{
936216f8 386 void *p = io_u_verify_off(hdr, vc);
546dfd9f 387 struct vhdr_crc7 *vh = hdr_priv(hdr);
1e154bdb
JA
388 unsigned char c;
389
936216f8 390 dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 391
87677832 392 c = crc7(p, hdr->len - hdr_size(hdr));
1e154bdb 393
bfacf389
JA
394 if (c == vh->crc7)
395 return 0;
1e154bdb 396
bfacf389
JA
397 vc->name = "crc7";
398 vc->good_crc = &vh->crc7;
399 vc->bad_crc = &c;
400 vc->crc_len = 1;
401 log_verify_failure(hdr, vc);
402 return EILSEQ;
1e154bdb
JA
403}
404
936216f8 405static int verify_io_u_crc16(struct verify_header *hdr, struct vcont *vc)
969f7ed3 406{
936216f8 407 void *p = io_u_verify_off(hdr, vc);
546dfd9f 408 struct vhdr_crc16 *vh = hdr_priv(hdr);
969f7ed3
JA
409 unsigned short c;
410
936216f8 411 dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 412
87677832 413 c = crc16(p, hdr->len - hdr_size(hdr));
969f7ed3 414
bfacf389
JA
415 if (c == vh->crc16)
416 return 0;
969f7ed3 417
bfacf389
JA
418 vc->name = "crc16";
419 vc->good_crc = &vh->crc16;
420 vc->bad_crc = &c;
421 vc->crc_len = 2;
422 log_verify_failure(hdr, vc);
423 return EILSEQ;
969f7ed3
JA
424}
425
936216f8 426static int verify_io_u_crc64(struct verify_header *hdr, struct vcont *vc)
d77a7af3 427{
936216f8 428 void *p = io_u_verify_off(hdr, vc);
546dfd9f 429 struct vhdr_crc64 *vh = hdr_priv(hdr);
d77a7af3
JA
430 unsigned long long c;
431
936216f8 432 dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 433
87677832 434 c = crc64(p, hdr->len - hdr_size(hdr));
d77a7af3 435
bfacf389
JA
436 if (c == vh->crc64)
437 return 0;
d77a7af3 438
bfacf389
JA
439 vc->name = "crc64";
440 vc->good_crc = &vh->crc64;
441 vc->bad_crc = &c;
442 vc->crc_len = 8;
443 log_verify_failure(hdr, vc);
444 return EILSEQ;
d77a7af3
JA
445}
446
936216f8 447static int verify_io_u_crc32(struct verify_header *hdr, struct vcont *vc)
e29d1b70 448{
936216f8 449 void *p = io_u_verify_off(hdr, vc);
546dfd9f
JA
450 struct vhdr_crc32 *vh = hdr_priv(hdr);
451 uint32_t c;
e29d1b70 452
936216f8 453 dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 454
87677832 455 c = crc32(p, hdr->len - hdr_size(hdr));
e29d1b70 456
bfacf389
JA
457 if (c == vh->crc32)
458 return 0;
e29d1b70 459
bfacf389
JA
460 vc->name = "crc32";
461 vc->good_crc = &vh->crc32;
462 vc->bad_crc = &c;
463 vc->crc_len = 4;
464 log_verify_failure(hdr, vc);
465 return EILSEQ;
e29d1b70
JA
466}
467
936216f8 468static int verify_io_u_crc32c(struct verify_header *hdr, struct vcont *vc)
bac39e0e 469{
936216f8 470 void *p = io_u_verify_off(hdr, vc);
bac39e0e
JA
471 struct vhdr_crc32 *vh = hdr_priv(hdr);
472 uint32_t c;
473
936216f8 474 dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len);
bac39e0e 475
3845591f
JA
476 if (hdr->verify_type == VERIFY_CRC32C_INTEL)
477 c = crc32c_intel(p, hdr->len - hdr_size(hdr));
478 else
479 c = crc32c(p, hdr->len - hdr_size(hdr));
bac39e0e 480
bfacf389
JA
481 if (c == vh->crc32)
482 return 0;
bac39e0e 483
bfacf389
JA
484 vc->name = "crc32c";
485 vc->good_crc = &vh->crc32;
486 vc->bad_crc = &c;
487 vc->crc_len = 4;
488 log_verify_failure(hdr, vc);
489 return EILSEQ;
bac39e0e
JA
490}
491
936216f8 492static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc)
e29d1b70 493{
936216f8 494 void *p = io_u_verify_off(hdr, vc);
546dfd9f 495 struct vhdr_md5 *vh = hdr_priv(hdr);
8c432325
JA
496 uint32_t hash[MD5_HASH_WORDS];
497 struct md5_ctx md5_ctx = {
498 .hash = hash,
499 };
e29d1b70 500
936216f8 501 dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 502
61f821f1 503 md5_init(&md5_ctx);
87677832 504 md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr));
e29d1b70 505
bfacf389
JA
506 if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash)))
507 return 0;
e29d1b70 508
bfacf389
JA
509 vc->name = "md5";
510 vc->good_crc = vh->md5_digest;
511 vc->bad_crc = md5_ctx.hash;
512 vc->crc_len = sizeof(hash);
513 log_verify_failure(hdr, vc);
514 return EILSEQ;
e29d1b70
JA
515}
516
3f199b01
JA
517static unsigned int hweight8(unsigned int w)
518{
519 unsigned int res = w - ((w >> 1) & 0x55);
520
521 res = (res & 0x33) + ((res >> 2) & 0x33);
522 return (res + (res >> 4)) & 0x0F;
523}
524
0e92f873 525int verify_io_u_pattern(char *pattern, unsigned long pattern_size,
5ec10eaa 526 char *buf, unsigned int len, unsigned int mod)
a944e335
SL
527{
528 unsigned int i;
a944e335
SL
529
530 for (i = 0; i < len; i++) {
0e92f873 531 if (buf[i] != pattern[mod]) {
3f199b01
JA
532 unsigned int bits;
533
0e92f873 534 bits = hweight8(buf[i] ^ pattern[mod]);
3f199b01 535 log_err("fio: got pattern %x, wanted %x. Bad bits %d\n",
0e92f873 536 buf[i], pattern[mod], bits);
3f199b01 537 log_err("fio: bad pattern block offset %u\n", i);
9fd18969 538 return EILSEQ;
3f199b01 539 }
a944e335
SL
540 mod++;
541 if (mod == pattern_size)
542 mod = 0;
543 }
544
545 return 0;
546}
547
e8462bd8
JA
548/*
549 * Push IO verification to a separate thread
550 */
551int verify_io_u_async(struct thread_data *td, struct io_u *io_u)
552{
553 if (io_u->file)
554 put_file_log(td, io_u->file);
555
556 io_u->file = NULL;
557
558 pthread_mutex_lock(&td->io_u_lock);
0c41214f
RR
559
560 if (io_u->flags & IO_U_F_IN_CUR_DEPTH) {
561 td->cur_depth--;
562 io_u->flags &= ~IO_U_F_IN_CUR_DEPTH;
563 }
e8462bd8
JA
564 flist_del(&io_u->list);
565 flist_add_tail(&io_u->list, &td->verify_list);
2ecc1b57 566 io_u->flags |= IO_U_F_FREE_DEF;
e8462bd8
JA
567 pthread_mutex_unlock(&td->io_u_lock);
568
569 pthread_cond_signal(&td->verify_cond);
e8462bd8
JA
570 return 0;
571}
572
0d29de83
JA
573static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u)
574{
575 static char zero_buf[1024];
576 unsigned int this_len, len;
577 int ret = 0;
578 void *p;
579
580 if (!td->o.trim_zero)
581 return 0;
582
583 len = io_u->buflen;
584 p = io_u->buf;
585 do {
586 this_len = sizeof(zero_buf);
587 if (this_len > len)
588 this_len = len;
589 if (memcmp(p, zero_buf, this_len)) {
590 ret = EILSEQ;
591 break;
592 }
593 len -= this_len;
594 p += this_len;
595 } while (len);
596
597 if (!ret)
598 return 0;
599
a917a8b3
JA
600 log_err("trim: verify failed at file %s offset %llu, length %lu"
601 ", block offset %lu\n",
602 io_u->file->file_name, io_u->offset, io_u->buflen,
2f68124f 603 (unsigned long) (p - io_u->buf));
0d29de83
JA
604 return ret;
605}
606
36690c9b 607int verify_io_u(struct thread_data *td, struct io_u *io_u)
e29d1b70 608{
3f9f4e26 609 struct verify_header *hdr;
a944e335 610 unsigned int hdr_size, hdr_inc, hdr_num = 0;
95646108 611 void *p;
e29d1b70
JA
612 int ret;
613
1dcc0498 614 if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
36690c9b 615 return 0;
0d29de83
JA
616 if (io_u->flags & IO_U_F_TRIMMED) {
617 ret = verify_trimmed_io_u(td, io_u);
618 goto done;
619 }
36690c9b 620
3f9f4e26 621 hdr_inc = io_u->buflen;
a59e170d
JA
622 if (td->o.verify_interval)
623 hdr_inc = td->o.verify_interval;
e29d1b70 624
a12a3b4d 625 ret = 0;
5ec10eaa
JA
626 for (p = io_u->buf; p < io_u->buf + io_u->buflen;
627 p += hdr_inc, hdr_num++) {
bfacf389
JA
628 struct vcont vc = {
629 .io_u = io_u,
630 .hdr_num = hdr_num,
7d9fb455 631 .td = td,
bfacf389 632 };
936216f8 633
f3e6cb95 634 if (ret && td->o.verify_fatal)
a12a3b4d 635 break;
f3e6cb95 636
a944e335 637 hdr_size = __hdr_size(td->o.verify);
a59e170d 638 if (td->o.verify_offset)
a944e335 639 memswp(p, p + td->o.verify_offset, hdr_size);
95646108 640 hdr = p;
e29d1b70 641
3f199b01 642 if (hdr->fio_magic != FIO_HDR_MAGIC) {
c9b44031
JA
643 log_err("verify: bad magic header %x, wanted %x at file %s offset %llu, length %u\n",
644 hdr->fio_magic, FIO_HDR_MAGIC,
645 io_u->file->file_name,
646 io_u->offset + hdr_num * hdr->len, hdr->len);
9fd18969 647 return EILSEQ;
3f199b01
JA
648 }
649
e28218f3 650 if (td->o.verify_pattern_bytes) {
bd6f78b2
JA
651 dprint(FD_VERIFY, "pattern verify io_u %p, len %u\n",
652 io_u, hdr->len);
e28218f3 653 ret = verify_io_u_pattern(td->o.verify_pattern,
0e92f873
RR
654 td->o.verify_pattern_bytes,
655 p + hdr_size,
656 hdr_inc - hdr_size,
657 hdr_size % td->o.verify_pattern_bytes);
c9b44031
JA
658
659 if (ret) {
660 log_err("pattern: verify failed at file %s offset %llu, length %u\n",
661 io_u->file->file_name,
662 io_u->offset + hdr_num * hdr->len,
663 hdr->len);
664 }
665
e92d3d71
RR
666 /*
667 * Also verify the meta data, if applicable
668 */
669 if (hdr->verify_type == VERIFY_META)
936216f8 670 ret |= verify_io_u_meta(hdr, td, &vc);
e28218f3
SL
671 continue;
672 }
673
3f9f4e26
SL
674 switch (hdr->verify_type) {
675 case VERIFY_MD5:
936216f8 676 ret = verify_io_u_md5(hdr, &vc);
3f9f4e26
SL
677 break;
678 case VERIFY_CRC64:
936216f8 679 ret = verify_io_u_crc64(hdr, &vc);
3f9f4e26 680 break;
bac39e0e 681 case VERIFY_CRC32C:
3845591f 682 case VERIFY_CRC32C_INTEL:
936216f8 683 ret = verify_io_u_crc32c(hdr, &vc);
bac39e0e 684 break;
3f9f4e26 685 case VERIFY_CRC32:
936216f8 686 ret = verify_io_u_crc32(hdr, &vc);
3f9f4e26
SL
687 break;
688 case VERIFY_CRC16:
936216f8 689 ret = verify_io_u_crc16(hdr, &vc);
3f9f4e26
SL
690 break;
691 case VERIFY_CRC7:
936216f8 692 ret = verify_io_u_crc7(hdr, &vc);
3f9f4e26 693 break;
cd14cc10 694 case VERIFY_SHA256:
936216f8 695 ret = verify_io_u_sha256(hdr, &vc);
cd14cc10
JA
696 break;
697 case VERIFY_SHA512:
936216f8 698 ret = verify_io_u_sha512(hdr, &vc);
cd14cc10 699 break;
7437ee87 700 case VERIFY_META:
936216f8 701 ret = verify_io_u_meta(hdr, td, &vc);
7437ee87 702 break;
7c353ceb 703 case VERIFY_SHA1:
936216f8 704 ret = verify_io_u_sha1(hdr, &vc);
7c353ceb 705 break;
3f9f4e26
SL
706 default:
707 log_err("Bad verify type %u\n", hdr->verify_type);
d16d4e09 708 ret = EINVAL;
3f9f4e26 709 }
3f9f4e26 710 }
a7dfe862 711
0d29de83 712done:
f3e6cb95
JA
713 if (ret && td->o.verify_fatal)
714 td->terminate = 1;
715
a12a3b4d 716 return ret;
e29d1b70
JA
717}
718
7437ee87 719static void fill_meta(struct verify_header *hdr, struct thread_data *td,
5ec10eaa 720 struct io_u *io_u, unsigned int header_num)
7437ee87
SL
721{
722 struct vhdr_meta *vh = hdr_priv(hdr);
723
724 vh->thread = td->thread_number;
725
726 vh->time_sec = io_u->start_time.tv_sec;
727 vh->time_usec = io_u->start_time.tv_usec;
728
729 vh->numberio = td->io_issues[DDIR_WRITE];
730
731 vh->offset = io_u->offset + header_num * td->o.verify_interval;
732}
733
cd14cc10
JA
734static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len)
735{
546dfd9f 736 struct vhdr_sha512 *vh = hdr_priv(hdr);
cd14cc10 737 struct sha512_ctx sha512_ctx = {
546dfd9f 738 .buf = vh->sha512,
cd14cc10
JA
739 };
740
741 sha512_init(&sha512_ctx);
742 sha512_update(&sha512_ctx, p, len);
743}
744
745static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len)
746{
546dfd9f 747 struct vhdr_sha256 *vh = hdr_priv(hdr);
cd14cc10 748 struct sha256_ctx sha256_ctx = {
546dfd9f 749 .buf = vh->sha256,
cd14cc10
JA
750 };
751
752 sha256_init(&sha256_ctx);
753 sha256_update(&sha256_ctx, p, len);
754}
755
7c353ceb
JA
756static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len)
757{
758 struct vhdr_sha1 *vh = hdr_priv(hdr);
759 struct sha1_ctx sha1_ctx = {
760 .H = vh->sha1,
761 };
762
763 sha1_init(&sha1_ctx);
764 sha1_update(&sha1_ctx, p, len);
765}
766
1e154bdb
JA
767static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
768{
546dfd9f
JA
769 struct vhdr_crc7 *vh = hdr_priv(hdr);
770
771 vh->crc7 = crc7(p, len);
1e154bdb
JA
772}
773
969f7ed3
JA
774static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
775{
546dfd9f
JA
776 struct vhdr_crc16 *vh = hdr_priv(hdr);
777
778 vh->crc16 = crc16(p, len);
969f7ed3
JA
779}
780
e29d1b70
JA
781static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
782{
546dfd9f
JA
783 struct vhdr_crc32 *vh = hdr_priv(hdr);
784
785 vh->crc32 = crc32(p, len);
e29d1b70
JA
786}
787
bac39e0e
JA
788static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len)
789{
790 struct vhdr_crc32 *vh = hdr_priv(hdr);
791
3845591f
JA
792 if (hdr->verify_type == VERIFY_CRC32C_INTEL)
793 vh->crc32 = crc32c_intel(p, len);
794 else
795 vh->crc32 = crc32c(p, len);
bac39e0e
JA
796}
797
d77a7af3
JA
798static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
799{
546dfd9f
JA
800 struct vhdr_crc64 *vh = hdr_priv(hdr);
801
802 vh->crc64 = crc64(p, len);
d77a7af3
JA
803}
804
e29d1b70
JA
805static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
806{
546dfd9f 807 struct vhdr_md5 *vh = hdr_priv(hdr);
8c432325 808 struct md5_ctx md5_ctx = {
546dfd9f 809 .hash = (uint32_t *) vh->md5_digest,
8c432325 810 };
e29d1b70 811
61f821f1 812 md5_init(&md5_ctx);
e29d1b70 813 md5_update(&md5_ctx, p, len);
e29d1b70
JA
814}
815
7d9fb455
JA
816static void populate_hdr(struct thread_data *td, struct io_u *io_u,
817 struct verify_header *hdr, unsigned int header_num,
818 unsigned int header_len)
819{
820 unsigned int data_len;
821 void *data, *p;
822
823 p = (void *) hdr;
824
825 hdr->fio_magic = FIO_HDR_MAGIC;
826 hdr->len = header_len;
827 hdr->verify_type = td->o.verify;
828 hdr->rand_seed = io_u->rand_seed;
829 data_len = header_len - hdr_size(hdr);
830
831 data = p + hdr_size(hdr);
832 switch (td->o.verify) {
833 case VERIFY_MD5:
834 dprint(FD_VERIFY, "fill md5 io_u %p, len %u\n",
835 io_u, hdr->len);
836 fill_md5(hdr, data, data_len);
837 break;
838 case VERIFY_CRC64:
839 dprint(FD_VERIFY, "fill crc64 io_u %p, len %u\n",
840 io_u, hdr->len);
841 fill_crc64(hdr, data, data_len);
842 break;
843 case VERIFY_CRC32C:
844 case VERIFY_CRC32C_INTEL:
845 dprint(FD_VERIFY, "fill crc32c io_u %p, len %u\n",
846 io_u, hdr->len);
847 fill_crc32c(hdr, data, data_len);
848 break;
849 case VERIFY_CRC32:
850 dprint(FD_VERIFY, "fill crc32 io_u %p, len %u\n",
851 io_u, hdr->len);
852 fill_crc32(hdr, data, data_len);
853 break;
854 case VERIFY_CRC16:
855 dprint(FD_VERIFY, "fill crc16 io_u %p, len %u\n",
856 io_u, hdr->len);
857 fill_crc16(hdr, data, data_len);
858 break;
859 case VERIFY_CRC7:
860 dprint(FD_VERIFY, "fill crc7 io_u %p, len %u\n",
861 io_u, hdr->len);
862 fill_crc7(hdr, data, data_len);
863 break;
864 case VERIFY_SHA256:
865 dprint(FD_VERIFY, "fill sha256 io_u %p, len %u\n",
866 io_u, hdr->len);
867 fill_sha256(hdr, data, data_len);
868 break;
869 case VERIFY_SHA512:
870 dprint(FD_VERIFY, "fill sha512 io_u %p, len %u\n",
871 io_u, hdr->len);
872 fill_sha512(hdr, data, data_len);
873 break;
874 case VERIFY_META:
875 dprint(FD_VERIFY, "fill meta io_u %p, len %u\n",
876 io_u, hdr->len);
877 fill_meta(hdr, td, io_u, header_num);
878 break;
879 case VERIFY_SHA1:
880 dprint(FD_VERIFY, "fill sha1 io_u %p, len %u\n",
881 io_u, hdr->len);
882 fill_sha1(hdr, data, data_len);
883 break;
884 default:
885 log_err("fio: bad verify type: %d\n", td->o.verify);
886 assert(0);
887 }
888 if (td->o.verify_offset)
889 memswp(p, p + td->o.verify_offset, hdr_size(hdr));
890}
891
e29d1b70
JA
892/*
893 * fill body of io_u->buf with random data and add a header with the
c50ca7bd 894 * checksum of choice
e29d1b70
JA
895 */
896void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
897{
9cc3d150
JA
898 if (td->o.verify == VERIFY_NULL)
899 return;
900
c50ca7bd 901 fill_pattern_headers(td, io_u, 0, 0);
e29d1b70
JA
902}
903
904int get_next_verify(struct thread_data *td, struct io_u *io_u)
905{
8de8f047 906 struct io_piece *ipo = NULL;
e29d1b70 907
d2d7fa53
JA
908 /*
909 * this io_u is from a requeue, we already filled the offsets
910 */
911 if (io_u->file)
912 return 0;
913
8de8f047
JA
914 if (!RB_EMPTY_ROOT(&td->io_hist_tree)) {
915 struct rb_node *n = rb_first(&td->io_hist_tree);
e29d1b70 916
8de8f047 917 ipo = rb_entry(n, struct io_piece, rb_node);
4b87898e 918 rb_erase(n, &td->io_hist_tree);
a917a8b3
JA
919 assert(ipo->flags & IP_F_ONRB);
920 ipo->flags &= ~IP_F_ONRB;
01743ee1
JA
921 } else if (!flist_empty(&td->io_hist_list)) {
922 ipo = flist_entry(td->io_hist_list.next, struct io_piece, list);
923 flist_del(&ipo->list);
a917a8b3
JA
924 assert(ipo->flags & IP_F_ONLIST);
925 ipo->flags &= ~IP_F_ONLIST;
8de8f047 926 }
e29d1b70 927
8de8f047 928 if (ipo) {
0d29de83
JA
929 td->io_hist_len--;
930
e29d1b70
JA
931 io_u->offset = ipo->offset;
932 io_u->buflen = ipo->len;
36167d82 933 io_u->file = ipo->file;
97af62ce 934
0d29de83
JA
935 if (ipo->flags & IP_F_TRIMMED)
936 io_u->flags |= IO_U_F_TRIMMED;
937
d6aed795 938 if (!fio_file_open(io_u->file)) {
97af62ce
JA
939 int r = td_io_open_file(td, io_u->file);
940
bd6f78b2
JA
941 if (r) {
942 dprint(FD_VERIFY, "failed file %s open\n",
943 io_u->file->file_name);
97af62ce 944 return 1;
bd6f78b2 945 }
97af62ce
JA
946 }
947
948 get_file(ipo->file);
d6aed795 949 assert(fio_file_open(io_u->file));
e29d1b70 950 io_u->ddir = DDIR_READ;
36167d82
JA
951 io_u->xfer_buf = io_u->buf;
952 io_u->xfer_buflen = io_u->buflen;
0d29de83
JA
953
954 remove_trim_entry(td, ipo);
e29d1b70 955 free(ipo);
bd6f78b2 956 dprint(FD_VERIFY, "get_next_verify: ret io_u %p\n", io_u);
e29d1b70
JA
957 return 0;
958 }
959
bd6f78b2 960 dprint(FD_VERIFY, "get_next_verify: empty\n");
e29d1b70
JA
961 return 1;
962}
e8462bd8
JA
963
964static void *verify_async_thread(void *data)
965{
966 struct thread_data *td = data;
967 struct io_u *io_u;
968 int ret = 0;
969
970 if (td->o.verify_cpumask_set &&
971 fio_setaffinity(td->pid, td->o.verify_cpumask)) {
972 log_err("fio: failed setting verify thread affinity\n");
973 goto done;
974 }
975
976 do {
e53ab27c
JA
977 FLIST_HEAD(list);
978
e8462bd8
JA
979 read_barrier();
980 if (td->verify_thread_exit)
981 break;
982
983 pthread_mutex_lock(&td->io_u_lock);
984
985 while (flist_empty(&td->verify_list) &&
986 !td->verify_thread_exit) {
b36e298b
JA
987 ret = pthread_cond_wait(&td->verify_cond,
988 &td->io_u_lock);
e8462bd8
JA
989 if (ret) {
990 pthread_mutex_unlock(&td->io_u_lock);
991 break;
992 }
993 }
994
e53ab27c
JA
995 flist_splice_init(&td->verify_list, &list);
996 pthread_mutex_unlock(&td->io_u_lock);
997
998 if (flist_empty(&list))
e8462bd8 999 continue;
e8462bd8 1000
e53ab27c
JA
1001 while (!flist_empty(&list)) {
1002 io_u = flist_entry(list.next, struct io_u, list);
1003 flist_del_init(&io_u->list);
e8462bd8 1004
d561f2ab 1005 ret = verify_io_u(td, io_u);
e53ab27c 1006 put_io_u(td, io_u);
d561f2ab
JA
1007 if (!ret)
1008 continue;
1009 if (td->o.continue_on_error &&
1010 td_non_fatal_error(ret)) {
1011 update_error_count(td, ret);
1012 td_clear_error(td);
1013 ret = 0;
1014 }
e53ab27c 1015 }
e8462bd8
JA
1016 } while (!ret);
1017
d561f2ab
JA
1018 if (ret) {
1019 td_verror(td, ret, "async_verify");
f3e6cb95
JA
1020 if (td->o.verify_fatal)
1021 td->terminate = 1;
d561f2ab
JA
1022 }
1023
e8462bd8
JA
1024done:
1025 pthread_mutex_lock(&td->io_u_lock);
1026 td->nr_verify_threads--;
1027 pthread_mutex_unlock(&td->io_u_lock);
1028
1029 pthread_cond_signal(&td->free_cond);
1030 return NULL;
1031}
1032
1033int verify_async_init(struct thread_data *td)
1034{
1035 int i, ret;
304a47c7
VA
1036 pthread_attr_t attr;
1037
1038 pthread_attr_init(&attr);
1039 pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
e8462bd8
JA
1040
1041 td->verify_thread_exit = 0;
1042
1043 td->verify_threads = malloc(sizeof(pthread_t) * td->o.verify_async);
1044 for (i = 0; i < td->o.verify_async; i++) {
304a47c7 1045 ret = pthread_create(&td->verify_threads[i], &attr,
e8462bd8
JA
1046 verify_async_thread, td);
1047 if (ret) {
1048 log_err("fio: async verify creation failed: %s\n",
1049 strerror(ret));
1050 break;
1051 }
1052 ret = pthread_detach(td->verify_threads[i]);
1053 if (ret) {
1054 log_err("fio: async verify thread detach failed: %s\n",
1055 strerror(ret));
1056 break;
1057 }
1058 td->nr_verify_threads++;
1059 }
1060
304a47c7
VA
1061 pthread_attr_destroy(&attr);
1062
e8462bd8 1063 if (i != td->o.verify_async) {
e40823b1 1064 log_err("fio: only %d verify threads started, exiting\n", i);
e8462bd8
JA
1065 td->verify_thread_exit = 1;
1066 write_barrier();
1067 pthread_cond_broadcast(&td->verify_cond);
1068 return 1;
1069 }
1070
1071 return 0;
1072}
1073
1074void verify_async_exit(struct thread_data *td)
1075{
1076 td->verify_thread_exit = 1;
1077 write_barrier();
1078 pthread_cond_broadcast(&td->verify_cond);
1079
1080 pthread_mutex_lock(&td->io_u_lock);
1081
1082 while (td->nr_verify_threads)
1083 pthread_cond_wait(&td->free_cond, &td->io_u_lock);
1084
1085 pthread_mutex_unlock(&td->io_u_lock);
1086 free(td->verify_threads);
1087 td->verify_threads = NULL;
1088}