log: use __log_buf() if we know buf != NULL
[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>
79402a12 9#include <libgen.h>
e29d1b70
JA
10
11#include "fio.h"
4f5af7b2 12#include "verify.h"
0d29de83 13#include "trim.h"
637ef8d9 14#include "lib/rand.h"
51aa2da8 15#include "lib/hweight.h"
2cac8fcb 16#include "lib/pattern.h"
e29d1b70 17
eef6eea1
JA
18#include "crc/md5.h"
19#include "crc/crc64.h"
20#include "crc/crc32.h"
bac39e0e 21#include "crc/crc32c.h"
eef6eea1
JA
22#include "crc/crc16.h"
23#include "crc/crc7.h"
24#include "crc/sha256.h"
25#include "crc/sha512.h"
7c353ceb 26#include "crc/sha1.h"
844ea602 27#include "crc/xxhash.h"
ae3a5acc 28#include "crc/sha3.h"
cd14cc10 29
7d9fb455
JA
30static void populate_hdr(struct thread_data *td, struct io_u *io_u,
31 struct verify_header *hdr, unsigned int header_num,
32 unsigned int header_len);
b638d82f
RP
33static void __fill_hdr(struct thread_data *td, struct io_u *io_u,
34 struct verify_header *hdr, unsigned int header_num,
35 unsigned int header_len, uint64_t rand_seed);
7d9fb455 36
ce35b1ec
JA
37void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len)
38{
2cac8fcb 39 (void)cpy_pattern(td->o.buffer_pattern, td->o.buffer_pattern_bytes, p, len);
ce35b1ec
JA
40}
41
a89ba4b1
JA
42static void __fill_buffer(struct thread_options *o, unsigned long seed, void *p,
43 unsigned int len)
7fa085ea
JA
44{
45 __fill_random_buf_percentage(seed, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes);
46}
47
a89ba4b1
JA
48static unsigned long fill_buffer(struct thread_data *td, void *p,
49 unsigned int len)
7fa085ea
JA
50{
51 struct frand_state *fs = &td->verify_state;
52 struct thread_options *o = &td->o;
53
54 return fill_random_buf_percentage(fs, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes);
55}
56
ce35b1ec
JA
57void fill_verify_pattern(struct thread_data *td, void *p, unsigned int len,
58 struct io_u *io_u, unsigned long seed, int use_seed)
59{
bc769898
JA
60 struct thread_options *o = &td->o;
61
62 if (!o->verify_pattern_bytes) {
ce35b1ec
JA
63 dprint(FD_VERIFY, "fill random bytes len=%u\n", len);
64
65 if (use_seed)
7fa085ea
JA
66 __fill_buffer(o, seed, p, len);
67 else
68 io_u->rand_seed = fill_buffer(td, p, len);
ce35b1ec
JA
69 return;
70 }
c4b6117b 71
61b9861d
RP
72 /* Skip if we were here and we do not need to patch pattern
73 * with format */
74 if (!td->o.verify_fmt_sz && io_u->buf_filled_len >= len) {
ce35b1ec 75 dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
bc769898 76 o->verify_pattern_bytes, len);
ce35b1ec
JA
77 return;
78 }
79
61b9861d
RP
80 (void)paste_format(td->o.verify_pattern, td->o.verify_pattern_bytes,
81 td->o.verify_fmt, td->o.verify_fmt_sz,
82 p, len, io_u);
ce35b1ec
JA
83 io_u->buf_filled_len = len;
84}
85
cfbcd0dc
JA
86static unsigned int get_hdr_inc(struct thread_data *td, struct io_u *io_u)
87{
88 unsigned int hdr_inc;
89
57a61cd0
JA
90 /*
91 * If we use bs_unaligned, buflen can be larger than the verify
92 * interval (which just defaults to the smallest blocksize possible).
93 */
cfbcd0dc 94 hdr_inc = io_u->buflen;
57a61cd0
JA
95 if (td->o.verify_interval && td->o.verify_interval <= io_u->buflen &&
96 !td->o.bs_unaligned)
cfbcd0dc
JA
97 hdr_inc = td->o.verify_interval;
98
99 return hdr_inc;
100}
101
c50ca7bd
JA
102static void fill_pattern_headers(struct thread_data *td, struct io_u *io_u,
103 unsigned long seed, int use_seed)
104{
105 unsigned int hdr_inc, header_num;
106 struct verify_header *hdr;
107 void *p = io_u->buf;
108
ce35b1ec 109 fill_verify_pattern(td, p, io_u->buflen, io_u, seed, use_seed);
c50ca7bd 110
cfbcd0dc 111 hdr_inc = get_hdr_inc(td, io_u);
c50ca7bd
JA
112 header_num = 0;
113 for (; p < io_u->buf + io_u->buflen; p += hdr_inc) {
114 hdr = p;
115 populate_hdr(td, io_u, hdr, header_num, hdr_inc);
116 header_num++;
117 }
118}
119
4764aec9 120static void memswp(void *buf1, void *buf2, unsigned int len)
546a9142 121{
dee6de74
SL
122 char swap[200];
123
124 assert(len <= sizeof(swap));
90059d65 125
546a9142
SL
126 memcpy(&swap, buf1, len);
127 memcpy(buf1, buf2, len);
128 memcpy(buf2, &swap, len);
129}
130
e29d1b70
JA
131static void hexdump(void *buffer, int len)
132{
133 unsigned char *p = buffer;
134 int i;
135
136 for (i = 0; i < len; i++)
bfacf389
JA
137 log_err("%02x", p[i]);
138 log_err("\n");
e29d1b70
JA
139}
140
87677832 141/*
de8f6de9 142 * Prepare for separation of verify_header and checksum header
87677832 143 */
546dfd9f 144static inline unsigned int __hdr_size(int verify_type)
87677832 145{
03e20d68 146 unsigned int len = 0;
87677832 147
546dfd9f
JA
148 switch (verify_type) {
149 case VERIFY_NONE:
b638d82f 150 case VERIFY_HDR_ONLY:
546dfd9f 151 case VERIFY_NULL:
ed3a433d 152 case VERIFY_PATTERN:
546dfd9f
JA
153 len = 0;
154 break;
155 case VERIFY_MD5:
156 len = sizeof(struct vhdr_md5);
157 break;
158 case VERIFY_CRC64:
159 len = sizeof(struct vhdr_crc64);
160 break;
bac39e0e 161 case VERIFY_CRC32C:
546dfd9f 162 case VERIFY_CRC32:
3845591f 163 case VERIFY_CRC32C_INTEL:
546dfd9f
JA
164 len = sizeof(struct vhdr_crc32);
165 break;
166 case VERIFY_CRC16:
167 len = sizeof(struct vhdr_crc16);
168 break;
169 case VERIFY_CRC7:
170 len = sizeof(struct vhdr_crc7);
171 break;
172 case VERIFY_SHA256:
173 len = sizeof(struct vhdr_sha256);
174 break;
175 case VERIFY_SHA512:
176 len = sizeof(struct vhdr_sha512);
177 break;
ae3a5acc
JA
178 case VERIFY_SHA3_224:
179 len = sizeof(struct vhdr_sha3_224);
180 break;
181 case VERIFY_SHA3_256:
182 len = sizeof(struct vhdr_sha3_256);
183 break;
184 case VERIFY_SHA3_384:
185 len = sizeof(struct vhdr_sha3_384);
186 break;
187 case VERIFY_SHA3_512:
188 len = sizeof(struct vhdr_sha3_512);
189 break;
844ea602
JA
190 case VERIFY_XXHASH:
191 len = sizeof(struct vhdr_xxhash);
192 break;
7c353ceb
JA
193 case VERIFY_SHA1:
194 len = sizeof(struct vhdr_sha1);
195 break;
59245381 196 case VERIFY_PATTERN_NO_HDR:
ed3a433d 197 return 0;
546dfd9f
JA
198 default:
199 log_err("fio: unknown verify header!\n");
200 assert(0);
201 }
202
203 return len + sizeof(struct verify_header);
87677832
JA
204}
205
ed3a433d
JA
206static inline unsigned int hdr_size(struct thread_data *td,
207 struct verify_header *hdr)
87677832 208{
ed3a433d
JA
209 if (td->o.verify == VERIFY_PATTERN_NO_HDR)
210 return 0;
211
546dfd9f
JA
212 return __hdr_size(hdr->verify_type);
213}
214
215static void *hdr_priv(struct verify_header *hdr)
216{
217 void *priv = hdr;
218
219 return priv + sizeof(struct verify_header);
87677832
JA
220}
221
936216f8
JA
222/*
223 * Verify container, pass info to verify handlers and allow them to
224 * pass info back in case of error
225 */
226struct vcont {
227 /*
228 * Input
229 */
230 struct io_u *io_u;
231 unsigned int hdr_num;
7d9fb455 232 struct thread_data *td;
936216f8
JA
233
234 /*
235 * Output, only valid in case of error
236 */
bfacf389
JA
237 const char *name;
238 void *good_crc;
239 void *bad_crc;
936216f8
JA
240 unsigned int crc_len;
241};
242
dacbbb88 243#define DUMP_BUF_SZ 255
dacbbb88 244
c50ca7bd
JA
245static void dump_buf(char *buf, unsigned int len, unsigned long long offset,
246 const char *type, struct fio_file *f)
7d9fb455 247{
9db753ec
BVA
248 char *ptr, *fname;
249 char sep[2] = { FIO_OS_PATH_SEPARATOR, 0 };
7d9fb455
JA
250 int ret, fd;
251
6f260b31 252 ptr = strdup(f->file_name);
c50ca7bd 253
9db753ec
BVA
254 if (asprintf(&fname, "%s%s%s.%llu.%s", aux_path ? : "",
255 aux_path ? sep : "", basename(ptr), offset, type) < 0) {
7fc08e99 256 if (!fio_did_warn(FIO_WARN_VERIFY_BUF))
9db753ec
BVA
257 log_err("fio: not enough memory for dump buffer filename\n");
258 goto free_ptr;
dacbbb88
JA
259 }
260
7d9fb455
JA
261 fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 0644);
262 if (fd < 0) {
263 perror("open verify buf file");
9db753ec 264 goto free_fname;
7d9fb455
JA
265 }
266
267 while (len) {
268 ret = write(fd, buf, len);
269 if (!ret)
270 break;
271 else if (ret < 0) {
272 perror("write verify buf file");
273 break;
274 }
275 len -= ret;
276 buf += ret;
277 }
278
279 close(fd);
c50ca7bd 280 log_err(" %s data dumped as %s\n", type, fname);
9db753ec
BVA
281
282free_fname:
283 free(fname);
284
285free_ptr:
6f260b31 286 free(ptr);
7d9fb455
JA
287}
288
c50ca7bd
JA
289/*
290 * Dump the contents of the read block and re-generate the correct data
291 * and dump that too.
292 */
9ba987cc 293static void __dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
7d9fb455
JA
294{
295 struct thread_data *td = vc->td;
296 struct io_u *io_u = vc->io_u;
297 unsigned long hdr_offset;
7d9fb455 298 struct io_u dummy;
c50ca7bd 299 void *buf;
7d9fb455 300
0dce9bc9
SL
301 if (!td->o.verify_dump)
302 return;
303
c50ca7bd
JA
304 /*
305 * Dump the contents we just read off disk
306 */
7d9fb455
JA
307 hdr_offset = vc->hdr_num * hdr->len;
308
c50ca7bd
JA
309 dump_buf(io_u->buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
310 "received", vc->io_u->file);
7d9fb455 311
c50ca7bd
JA
312 /*
313 * Allocate a new buf and re-generate the original data
314 */
315 buf = malloc(io_u->buflen);
7d9fb455 316 dummy = *io_u;
c50ca7bd 317 dummy.buf = buf;
4aae38a6 318 dummy.rand_seed = hdr->rand_seed;
cfbcd0dc 319 dummy.buf_filled_len = 0;
0d81daf9 320 dummy.buflen = io_u->buflen;
7d9fb455 321
c50ca7bd 322 fill_pattern_headers(td, &dummy, hdr->rand_seed, 1);
7d9fb455 323
c50ca7bd
JA
324 dump_buf(buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
325 "expected", vc->io_u->file);
7d9fb455
JA
326 free(buf);
327}
328
9ba987cc
JA
329static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
330{
331 struct thread_data *td = vc->td;
332 struct verify_header shdr;
333
334 if (td->o.verify == VERIFY_PATTERN_NO_HDR) {
b638d82f 335 __fill_hdr(td, vc->io_u, &shdr, 0, vc->io_u->buflen, 0);
9ba987cc
JA
336 hdr = &shdr;
337 }
338
339 __dump_verify_buffers(hdr, vc);
340}
341
bfacf389
JA
342static void log_verify_failure(struct verify_header *hdr, struct vcont *vc)
343{
344 unsigned long long offset;
345
346 offset = vc->io_u->offset;
347 offset += vc->hdr_num * hdr->len;
32c17adf
JA
348 log_err("%.8s: verify failed at file %s offset %llu, length %u\n",
349 vc->name, vc->io_u->file->file_name, offset, hdr->len);
bfacf389
JA
350
351 if (vc->good_crc && vc->bad_crc) {
352 log_err(" Expected CRC: ");
353 hexdump(vc->good_crc, vc->crc_len);
354 log_err(" Received CRC: ");
355 hexdump(vc->bad_crc, vc->crc_len);
356 }
7d9fb455
JA
357
358 dump_verify_buffers(hdr, vc);
bfacf389
JA
359}
360
d9f2caf3
JA
361/*
362 * Return data area 'header_num'
363 */
936216f8 364static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc)
d9f2caf3 365{
ed3a433d 366 return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(vc->td, hdr);
d9f2caf3
JA
367}
368
92bf48d5
JA
369static int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc)
370{
371 struct thread_data *td = vc->td;
372 struct io_u *io_u = vc->io_u;
373 char *buf, *pattern;
2b13e716 374 unsigned int header_size = __hdr_size(td->o.verify);
25276497
RP
375 unsigned int len, mod, i, pattern_size;
376 int rc;
92bf48d5
JA
377
378 pattern = td->o.verify_pattern;
9a2a86d0 379 pattern_size = td->o.verify_pattern_bytes;
61b9861d
RP
380 assert(pattern_size != 0);
381
382 (void)paste_format_inplace(pattern, pattern_size,
383 td->o.verify_fmt, td->o.verify_fmt_sz, io_u);
384
d637b8b8 385 buf = (char *) hdr + header_size;
2b13e716 386 len = get_hdr_inc(td, io_u) - header_size;
61b9861d 387 mod = (get_hdr_inc(td, io_u) * vc->hdr_num + header_size) % pattern_size;
9a2a86d0 388
25276497
RP
389 rc = cmp_pattern(pattern, pattern_size, mod, buf, len);
390 if (!rc)
391 return 0;
92bf48d5 392
25276497
RP
393 /* Slow path, compare each byte */
394 for (i = 0; i < len; i++) {
92bf48d5
JA
395 if (buf[i] != pattern[mod]) {
396 unsigned int bits;
397
398 bits = hweight8(buf[i] ^ pattern[mod]);
25276497
RP
399 log_err("fio: got pattern '%02x', wanted '%02x'. Bad bits %d\n",
400 (unsigned char)buf[i],
401 (unsigned char)pattern[mod],
402 bits);
92bf48d5 403 log_err("fio: bad pattern block offset %u\n", i);
7ea0a9ad 404 vc->name = "pattern";
d0c8ccb0 405 log_verify_failure(hdr, vc);
92bf48d5
JA
406 return EILSEQ;
407 }
408 mod++;
409 if (mod == td->o.verify_pattern_bytes)
410 mod = 0;
411 }
412
25276497
RP
413 /* Unreachable line */
414 assert(0);
415 return EILSEQ;
92bf48d5
JA
416}
417
844ea602
JA
418static int verify_io_u_xxhash(struct verify_header *hdr, struct vcont *vc)
419{
420 void *p = io_u_verify_off(hdr, vc);
421 struct vhdr_xxhash *vh = hdr_priv(hdr);
422 uint32_t hash;
423 void *state;
424
425 dprint(FD_VERIFY, "xxhash verify io_u %p, len %u\n", vc->io_u, hdr->len);
426
427 state = XXH32_init(1);
ed3a433d 428 XXH32_update(state, p, hdr->len - hdr_size(vc->td, hdr));
844ea602
JA
429 hash = XXH32_digest(state);
430
431 if (vh->hash == hash)
432 return 0;
433
434 vc->name = "xxhash";
435 vc->good_crc = &vh->hash;
436 vc->bad_crc = &hash;
437 vc->crc_len = sizeof(hash);
438 log_verify_failure(hdr, vc);
439 return EILSEQ;
440}
441
ae3a5acc
JA
442static int verify_io_u_sha3(struct verify_header *hdr, struct vcont *vc,
443 struct fio_sha3_ctx *sha3_ctx, uint8_t *sha,
444 unsigned int sha_size, const char *name)
445{
446 void *p = io_u_verify_off(hdr, vc);
447
448 dprint(FD_VERIFY, "%s verify io_u %p, len %u\n", name, vc->io_u, hdr->len);
449
450 fio_sha3_update(sha3_ctx, p, hdr->len - hdr_size(vc->td, hdr));
451 fio_sha3_final(sha3_ctx);
452
453 if (!memcmp(sha, sha3_ctx->sha, sha_size))
454 return 0;
455
456 vc->name = name;
457 vc->good_crc = sha;
458 vc->bad_crc = sha3_ctx->sha;
459 vc->crc_len = sha_size;
460 log_verify_failure(hdr, vc);
461 return EILSEQ;
462}
463
464static int verify_io_u_sha3_224(struct verify_header *hdr, struct vcont *vc)
465{
466 struct vhdr_sha3_224 *vh = hdr_priv(hdr);
467 uint8_t sha[SHA3_224_DIGEST_SIZE];
468 struct fio_sha3_ctx sha3_ctx = {
469 .sha = sha,
470 };
471
472 fio_sha3_224_init(&sha3_ctx);
473
474 return verify_io_u_sha3(hdr, vc, &sha3_ctx, vh->sha,
475 SHA3_224_DIGEST_SIZE, "sha3-224");
476}
477
478static int verify_io_u_sha3_256(struct verify_header *hdr, struct vcont *vc)
479{
480 struct vhdr_sha3_256 *vh = hdr_priv(hdr);
481 uint8_t sha[SHA3_256_DIGEST_SIZE];
482 struct fio_sha3_ctx sha3_ctx = {
483 .sha = sha,
484 };
485
486 fio_sha3_256_init(&sha3_ctx);
487
488 return verify_io_u_sha3(hdr, vc, &sha3_ctx, vh->sha,
489 SHA3_256_DIGEST_SIZE, "sha3-256");
490}
491
492static int verify_io_u_sha3_384(struct verify_header *hdr, struct vcont *vc)
493{
494 struct vhdr_sha3_384 *vh = hdr_priv(hdr);
495 uint8_t sha[SHA3_384_DIGEST_SIZE];
496 struct fio_sha3_ctx sha3_ctx = {
497 .sha = sha,
498 };
499
500 fio_sha3_384_init(&sha3_ctx);
501
502 return verify_io_u_sha3(hdr, vc, &sha3_ctx, vh->sha,
503 SHA3_384_DIGEST_SIZE, "sha3-384");
504}
505
506static int verify_io_u_sha3_512(struct verify_header *hdr, struct vcont *vc)
507{
508 struct vhdr_sha3_512 *vh = hdr_priv(hdr);
509 uint8_t sha[SHA3_512_DIGEST_SIZE];
510 struct fio_sha3_ctx sha3_ctx = {
511 .sha = sha,
512 };
513
514 fio_sha3_512_init(&sha3_ctx);
515
516 return verify_io_u_sha3(hdr, vc, &sha3_ctx, vh->sha,
517 SHA3_512_DIGEST_SIZE, "sha3-512");
518}
519
936216f8 520static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc)
cd14cc10 521{
936216f8 522 void *p = io_u_verify_off(hdr, vc);
546dfd9f 523 struct vhdr_sha512 *vh = hdr_priv(hdr);
cd14cc10 524 uint8_t sha512[128];
25dfa848 525 struct fio_sha512_ctx sha512_ctx = {
cd14cc10
JA
526 .buf = sha512,
527 };
528
936216f8 529 dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 530
25dfa848 531 fio_sha512_init(&sha512_ctx);
ed3a433d 532 fio_sha512_update(&sha512_ctx, p, hdr->len - hdr_size(vc->td, hdr));
cd14cc10 533
bfacf389
JA
534 if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512)))
535 return 0;
cd14cc10 536
bfacf389
JA
537 vc->name = "sha512";
538 vc->good_crc = vh->sha512;
539 vc->bad_crc = sha512_ctx.buf;
540 vc->crc_len = sizeof(vh->sha512);
541 log_verify_failure(hdr, vc);
542 return EILSEQ;
cd14cc10
JA
543}
544
936216f8 545static int verify_io_u_sha256(struct verify_header *hdr, struct vcont *vc)
cd14cc10 546{
936216f8 547 void *p = io_u_verify_off(hdr, vc);
546dfd9f 548 struct vhdr_sha256 *vh = hdr_priv(hdr);
bc77f56f 549 uint8_t sha256[64];
25dfa848 550 struct fio_sha256_ctx sha256_ctx = {
cd14cc10
JA
551 .buf = sha256,
552 };
553
936216f8 554 dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 555
25dfa848 556 fio_sha256_init(&sha256_ctx);
ed3a433d 557 fio_sha256_update(&sha256_ctx, p, hdr->len - hdr_size(vc->td, hdr));
017052b6 558 fio_sha256_final(&sha256_ctx);
cd14cc10 559
bfacf389
JA
560 if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256)))
561 return 0;
cd14cc10 562
bfacf389
JA
563 vc->name = "sha256";
564 vc->good_crc = vh->sha256;
565 vc->bad_crc = sha256_ctx.buf;
566 vc->crc_len = sizeof(vh->sha256);
567 log_verify_failure(hdr, vc);
568 return EILSEQ;
cd14cc10
JA
569}
570
936216f8 571static int verify_io_u_sha1(struct verify_header *hdr, struct vcont *vc)
7c353ceb 572{
936216f8 573 void *p = io_u_verify_off(hdr, vc);
7c353ceb
JA
574 struct vhdr_sha1 *vh = hdr_priv(hdr);
575 uint32_t sha1[5];
25dfa848 576 struct fio_sha1_ctx sha1_ctx = {
7c353ceb
JA
577 .H = sha1,
578 };
579
936216f8 580 dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len);
7c353ceb 581
25dfa848 582 fio_sha1_init(&sha1_ctx);
ed3a433d 583 fio_sha1_update(&sha1_ctx, p, hdr->len - hdr_size(vc->td, hdr));
017052b6 584 fio_sha1_final(&sha1_ctx);
7c353ceb 585
bfacf389
JA
586 if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1)))
587 return 0;
7c353ceb 588
bfacf389
JA
589 vc->name = "sha1";
590 vc->good_crc = vh->sha1;
591 vc->bad_crc = sha1_ctx.H;
592 vc->crc_len = sizeof(vh->sha1);
593 log_verify_failure(hdr, vc);
594 return EILSEQ;
7c353ceb
JA
595}
596
936216f8 597static int verify_io_u_crc7(struct verify_header *hdr, struct vcont *vc)
1e154bdb 598{
936216f8 599 void *p = io_u_verify_off(hdr, vc);
546dfd9f 600 struct vhdr_crc7 *vh = hdr_priv(hdr);
1e154bdb
JA
601 unsigned char c;
602
936216f8 603 dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 604
ed3a433d 605 c = fio_crc7(p, hdr->len - hdr_size(vc->td, hdr));
1e154bdb 606
bfacf389
JA
607 if (c == vh->crc7)
608 return 0;
1e154bdb 609
bfacf389
JA
610 vc->name = "crc7";
611 vc->good_crc = &vh->crc7;
612 vc->bad_crc = &c;
613 vc->crc_len = 1;
614 log_verify_failure(hdr, vc);
615 return EILSEQ;
1e154bdb
JA
616}
617
936216f8 618static int verify_io_u_crc16(struct verify_header *hdr, struct vcont *vc)
969f7ed3 619{
936216f8 620 void *p = io_u_verify_off(hdr, vc);
546dfd9f 621 struct vhdr_crc16 *vh = hdr_priv(hdr);
969f7ed3
JA
622 unsigned short c;
623
936216f8 624 dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 625
ed3a433d 626 c = fio_crc16(p, hdr->len - hdr_size(vc->td, hdr));
969f7ed3 627
bfacf389
JA
628 if (c == vh->crc16)
629 return 0;
969f7ed3 630
bfacf389
JA
631 vc->name = "crc16";
632 vc->good_crc = &vh->crc16;
633 vc->bad_crc = &c;
634 vc->crc_len = 2;
635 log_verify_failure(hdr, vc);
636 return EILSEQ;
969f7ed3
JA
637}
638
936216f8 639static int verify_io_u_crc64(struct verify_header *hdr, struct vcont *vc)
d77a7af3 640{
936216f8 641 void *p = io_u_verify_off(hdr, vc);
546dfd9f 642 struct vhdr_crc64 *vh = hdr_priv(hdr);
d77a7af3
JA
643 unsigned long long c;
644
936216f8 645 dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 646
ed3a433d 647 c = fio_crc64(p, hdr->len - hdr_size(vc->td, hdr));
d77a7af3 648
bfacf389
JA
649 if (c == vh->crc64)
650 return 0;
d77a7af3 651
bfacf389
JA
652 vc->name = "crc64";
653 vc->good_crc = &vh->crc64;
654 vc->bad_crc = &c;
655 vc->crc_len = 8;
656 log_verify_failure(hdr, vc);
657 return EILSEQ;
d77a7af3
JA
658}
659
936216f8 660static int verify_io_u_crc32(struct verify_header *hdr, struct vcont *vc)
e29d1b70 661{
936216f8 662 void *p = io_u_verify_off(hdr, vc);
546dfd9f
JA
663 struct vhdr_crc32 *vh = hdr_priv(hdr);
664 uint32_t c;
e29d1b70 665
936216f8 666 dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 667
ed3a433d 668 c = fio_crc32(p, hdr->len - hdr_size(vc->td, hdr));
e29d1b70 669
bfacf389
JA
670 if (c == vh->crc32)
671 return 0;
e29d1b70 672
bfacf389
JA
673 vc->name = "crc32";
674 vc->good_crc = &vh->crc32;
675 vc->bad_crc = &c;
676 vc->crc_len = 4;
677 log_verify_failure(hdr, vc);
678 return EILSEQ;
e29d1b70
JA
679}
680
936216f8 681static int verify_io_u_crc32c(struct verify_header *hdr, struct vcont *vc)
bac39e0e 682{
936216f8 683 void *p = io_u_verify_off(hdr, vc);
bac39e0e
JA
684 struct vhdr_crc32 *vh = hdr_priv(hdr);
685 uint32_t c;
686
936216f8 687 dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len);
bac39e0e 688
ed3a433d 689 c = fio_crc32c(p, hdr->len - hdr_size(vc->td, hdr));
bac39e0e 690
bfacf389
JA
691 if (c == vh->crc32)
692 return 0;
bac39e0e 693
bfacf389
JA
694 vc->name = "crc32c";
695 vc->good_crc = &vh->crc32;
696 vc->bad_crc = &c;
697 vc->crc_len = 4;
698 log_verify_failure(hdr, vc);
699 return EILSEQ;
bac39e0e
JA
700}
701
936216f8 702static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc)
e29d1b70 703{
936216f8 704 void *p = io_u_verify_off(hdr, vc);
546dfd9f 705 struct vhdr_md5 *vh = hdr_priv(hdr);
8c432325 706 uint32_t hash[MD5_HASH_WORDS];
25dfa848 707 struct fio_md5_ctx md5_ctx = {
8c432325
JA
708 .hash = hash,
709 };
e29d1b70 710
936216f8 711 dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 712
25dfa848 713 fio_md5_init(&md5_ctx);
ed3a433d 714 fio_md5_update(&md5_ctx, p, hdr->len - hdr_size(vc->td, hdr));
017052b6 715 fio_md5_final(&md5_ctx);
e29d1b70 716
bfacf389
JA
717 if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash)))
718 return 0;
e29d1b70 719
bfacf389
JA
720 vc->name = "md5";
721 vc->good_crc = vh->md5_digest;
722 vc->bad_crc = md5_ctx.hash;
723 vc->crc_len = sizeof(hash);
724 log_verify_failure(hdr, vc);
725 return EILSEQ;
e29d1b70
JA
726}
727
e8462bd8
JA
728/*
729 * Push IO verification to a separate thread
730 */
f8b0bd10 731int verify_io_u_async(struct thread_data *td, struct io_u **io_u_ptr)
e8462bd8 732{
f8b0bd10 733 struct io_u *io_u = *io_u_ptr;
e8462bd8 734
e8462bd8 735 pthread_mutex_lock(&td->io_u_lock);
d7ee2a7d 736
f8b0bd10
JA
737 if (io_u->file)
738 put_file_log(td, io_u->file);
739
0c41214f
RR
740 if (io_u->flags & IO_U_F_IN_CUR_DEPTH) {
741 td->cur_depth--;
1651e431 742 io_u_clear(td, io_u, IO_U_F_IN_CUR_DEPTH);
0c41214f 743 }
2ae0b204 744 flist_add_tail(&io_u->verify_list, &td->verify_list);
f8b0bd10 745 *io_u_ptr = NULL;
e8462bd8
JA
746
747 pthread_cond_signal(&td->verify_cond);
b93a8eb0 748 pthread_mutex_unlock(&td->io_u_lock);
e8462bd8
JA
749 return 0;
750}
751
323f58c5
JA
752/*
753 * Thanks Rusty, for spending the time so I don't have to.
754 *
755 * http://rusty.ozlabs.org/?p=560
756 */
757static int mem_is_zero(const void *data, size_t length)
758{
759 const unsigned char *p = data;
760 size_t len;
761
762 /* Check first 16 bytes manually */
763 for (len = 0; len < 16; len++) {
764 if (!length)
765 return 1;
766 if (*p)
767 return 0;
768 p++;
769 length--;
770 }
771
772 /* Now we know that's zero, memcmp with self. */
773 return memcmp(data, p, length) == 0;
774}
775
776static int mem_is_zero_slow(const void *data, size_t length, size_t *offset)
777{
778 const unsigned char *p = data;
779
780 *offset = 0;
781 while (length) {
782 if (*p)
783 break;
784 (*offset)++;
785 length--;
786 p++;
787 }
788
789 return !length;
790}
791
0d29de83
JA
792static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u)
793{
323f58c5 794 size_t offset;
0d29de83
JA
795
796 if (!td->o.trim_zero)
797 return 0;
798
323f58c5 799 if (mem_is_zero(io_u->buf, io_u->buflen))
0d29de83
JA
800 return 0;
801
323f58c5
JA
802 mem_is_zero_slow(io_u->buf, io_u->buflen, &offset);
803
5fff9543 804 log_err("trim: verify failed at file %s offset %llu, length %llu"
a917a8b3
JA
805 ", block offset %lu\n",
806 io_u->file->file_name, io_u->offset, io_u->buflen,
323f58c5
JA
807 (unsigned long) offset);
808 return EILSEQ;
0d29de83
JA
809}
810
b638d82f
RP
811static int verify_header(struct io_u *io_u, struct thread_data *td,
812 struct verify_header *hdr, unsigned int hdr_num,
813 unsigned int hdr_len)
f65d1c26
JA
814{
815 void *p = hdr;
816 uint32_t crc;
817
5964842c
AG
818 if (hdr->magic != FIO_HDR_MAGIC) {
819 log_err("verify: bad magic header %x, wanted %x",
820 hdr->magic, FIO_HDR_MAGIC);
821 goto err;
822 }
4445856a 823 if (hdr->len != hdr_len) {
5964842c
AG
824 log_err("verify: bad header length %u, wanted %u",
825 hdr->len, hdr_len);
826 goto err;
827 }
828 if (hdr->rand_seed != io_u->rand_seed) {
829 log_err("verify: bad header rand_seed %"PRIu64
830 ", wanted %"PRIu64,
831 hdr->rand_seed, io_u->rand_seed);
832 goto err;
833 }
b638d82f
RP
834 if (hdr->offset != io_u->offset + hdr_num * td->o.verify_interval) {
835 log_err("verify: bad header offset %"PRIu64
836 ", wanted %llu",
837 hdr->offset, io_u->offset);
838 goto err;
839 }
840
841 /*
842 * For read-only workloads, the program cannot be certain of the
843 * last numberio written to a block. Checking of numberio will be
844 * done only for workloads that write data. For verify_only,
845 * numberio will be checked in the last iteration when the correct
846 * state of numberio, that would have been written to each block
847 * in a previous run of fio, has been reached.
848 */
dcf9844e 849 if (td_write(td) && (td_min_bs(td) == td_max_bs(td)) &&
b638d82f
RP
850 !td->o.time_based)
851 if (!td->o.verify_only || td->o.loops == 0)
852 if (hdr->numberio != io_u->numberio) {
853 log_err("verify: bad header numberio %"PRIu16
854 ", wanted %"PRIu16,
855 hdr->numberio, io_u->numberio);
856 goto err;
857 }
ae38c0dc 858
25dfa848 859 crc = fio_crc32c(p, offsetof(struct verify_header, crc32));
5964842c
AG
860 if (crc != hdr->crc32) {
861 log_err("verify: bad header crc %x, calculated %x",
862 hdr->crc32, crc);
863 goto err;
864 }
865 return 0;
866
867err:
868 log_err(" at file %s offset %llu, length %u\n",
869 io_u->file->file_name,
870 io_u->offset + hdr_num * hdr_len, hdr_len);
16758b59
JA
871
872 if (td->o.verify_dump)
873 dump_buf(p, hdr_len, io_u->offset + hdr_num * hdr_len,
874 "hdr_fail", io_u->file);
875
5964842c 876 return EILSEQ;
f65d1c26
JA
877}
878
f8b0bd10 879int verify_io_u(struct thread_data *td, struct io_u **io_u_ptr)
e29d1b70 880{
3f9f4e26 881 struct verify_header *hdr;
f8b0bd10 882 struct io_u *io_u = *io_u_ptr;
2b13e716 883 unsigned int header_size, hdr_inc, hdr_num = 0;
95646108 884 void *p;
e29d1b70
JA
885 int ret;
886
1dcc0498 887 if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
36690c9b 888 return 0;
5c57c084
JA
889 /*
890 * If the IO engine is faking IO (like null), then just pretend
891 * we verified everything.
892 */
9b87f09b 893 if (td_ioengine_flagged(td, FIO_FAKEIO))
5c57c084
JA
894 return 0;
895
0d29de83
JA
896 if (io_u->flags & IO_U_F_TRIMMED) {
897 ret = verify_trimmed_io_u(td, io_u);
898 goto done;
899 }
36690c9b 900
cfbcd0dc 901 hdr_inc = get_hdr_inc(td, io_u);
e29d1b70 902
a12a3b4d 903 ret = 0;
5ec10eaa
JA
904 for (p = io_u->buf; p < io_u->buf + io_u->buflen;
905 p += hdr_inc, hdr_num++) {
bfacf389
JA
906 struct vcont vc = {
907 .io_u = io_u,
908 .hdr_num = hdr_num,
7d9fb455 909 .td = td,
bfacf389 910 };
f00b210f 911 unsigned int verify_type;
936216f8 912
f3e6cb95 913 if (ret && td->o.verify_fatal)
a12a3b4d 914 break;
f3e6cb95 915
2b13e716 916 header_size = __hdr_size(td->o.verify);
a59e170d 917 if (td->o.verify_offset)
2b13e716 918 memswp(p, p + td->o.verify_offset, header_size);
95646108 919 hdr = p;
e29d1b70 920
c4b6117b 921 /*
f31feaa2 922 * Make rand_seed check pass when have verify_backlog.
c4b6117b 923 */
f31feaa2 924 if (!td_rw(td) || (td->flags & TD_F_VER_BACKLOG))
c4b6117b
PV
925 io_u->rand_seed = hdr->rand_seed;
926
59245381 927 if (td->o.verify != VERIFY_PATTERN_NO_HDR) {
b638d82f 928 ret = verify_header(io_u, td, hdr, hdr_num, hdr_inc);
59245381
JA
929 if (ret)
930 return ret;
931 }
3f199b01 932
f00b210f
JA
933 if (td->o.verify != VERIFY_NONE)
934 verify_type = td->o.verify;
935 else
936 verify_type = hdr->verify_type;
937
938 switch (verify_type) {
b638d82f
RP
939 case VERIFY_HDR_ONLY:
940 /* Header is always verified, check if pattern is left
941 * for verification. */
942 if (td->o.verify_pattern_bytes)
943 ret = verify_io_u_pattern(hdr, &vc);
944 break;
3f9f4e26 945 case VERIFY_MD5:
936216f8 946 ret = verify_io_u_md5(hdr, &vc);
3f9f4e26
SL
947 break;
948 case VERIFY_CRC64:
936216f8 949 ret = verify_io_u_crc64(hdr, &vc);
3f9f4e26 950 break;
bac39e0e 951 case VERIFY_CRC32C:
3845591f 952 case VERIFY_CRC32C_INTEL:
936216f8 953 ret = verify_io_u_crc32c(hdr, &vc);
bac39e0e 954 break;
3f9f4e26 955 case VERIFY_CRC32:
936216f8 956 ret = verify_io_u_crc32(hdr, &vc);
3f9f4e26
SL
957 break;
958 case VERIFY_CRC16:
936216f8 959 ret = verify_io_u_crc16(hdr, &vc);
3f9f4e26
SL
960 break;
961 case VERIFY_CRC7:
936216f8 962 ret = verify_io_u_crc7(hdr, &vc);
3f9f4e26 963 break;
cd14cc10 964 case VERIFY_SHA256:
936216f8 965 ret = verify_io_u_sha256(hdr, &vc);
cd14cc10
JA
966 break;
967 case VERIFY_SHA512:
936216f8 968 ret = verify_io_u_sha512(hdr, &vc);
cd14cc10 969 break;
ae3a5acc
JA
970 case VERIFY_SHA3_224:
971 ret = verify_io_u_sha3_224(hdr, &vc);
972 break;
973 case VERIFY_SHA3_256:
974 ret = verify_io_u_sha3_256(hdr, &vc);
975 break;
976 case VERIFY_SHA3_384:
977 ret = verify_io_u_sha3_384(hdr, &vc);
978 break;
979 case VERIFY_SHA3_512:
980 ret = verify_io_u_sha3_512(hdr, &vc);
981 break;
844ea602
JA
982 case VERIFY_XXHASH:
983 ret = verify_io_u_xxhash(hdr, &vc);
984 break;
7c353ceb 985 case VERIFY_SHA1:
936216f8 986 ret = verify_io_u_sha1(hdr, &vc);
7c353ceb 987 break;
92bf48d5 988 case VERIFY_PATTERN:
59245381 989 case VERIFY_PATTERN_NO_HDR:
92bf48d5
JA
990 ret = verify_io_u_pattern(hdr, &vc);
991 break;
3f9f4e26
SL
992 default:
993 log_err("Bad verify type %u\n", hdr->verify_type);
d16d4e09 994 ret = EINVAL;
3f9f4e26 995 }
f00b210f
JA
996
997 if (ret && verify_type != hdr->verify_type)
998 log_err("fio: verify type mismatch (%u media, %u given)\n",
999 hdr->verify_type, verify_type);
3f9f4e26 1000 }
a7dfe862 1001
0d29de83 1002done:
f3e6cb95 1003 if (ret && td->o.verify_fatal)
ebea2133 1004 fio_mark_td_terminate(td);
f3e6cb95 1005
a12a3b4d 1006 return ret;
e29d1b70
JA
1007}
1008
844ea602
JA
1009static void fill_xxhash(struct verify_header *hdr, void *p, unsigned int len)
1010{
1011 struct vhdr_xxhash *vh = hdr_priv(hdr);
1012 void *state;
1013
1014 state = XXH32_init(1);
1015 XXH32_update(state, p, len);
1016 vh->hash = XXH32_digest(state);
1017}
1018
ae3a5acc
JA
1019static void fill_sha3(struct fio_sha3_ctx *sha3_ctx, void *p, unsigned int len)
1020{
1021 fio_sha3_update(sha3_ctx, p, len);
1022 fio_sha3_final(sha3_ctx);
1023}
1024
1025static void fill_sha3_224(struct verify_header *hdr, void *p, unsigned int len)
1026{
1027 struct vhdr_sha3_224 *vh = hdr_priv(hdr);
1028 struct fio_sha3_ctx sha3_ctx = {
1029 .sha = vh->sha,
1030 };
1031
1032 fio_sha3_224_init(&sha3_ctx);
1033 fill_sha3(&sha3_ctx, p, len);
1034}
1035
1036static void fill_sha3_256(struct verify_header *hdr, void *p, unsigned int len)
1037{
1038 struct vhdr_sha3_256 *vh = hdr_priv(hdr);
1039 struct fio_sha3_ctx sha3_ctx = {
1040 .sha = vh->sha,
1041 };
1042
1043 fio_sha3_256_init(&sha3_ctx);
1044 fill_sha3(&sha3_ctx, p, len);
1045}
1046
1047static void fill_sha3_384(struct verify_header *hdr, void *p, unsigned int len)
1048{
1049 struct vhdr_sha3_384 *vh = hdr_priv(hdr);
1050 struct fio_sha3_ctx sha3_ctx = {
1051 .sha = vh->sha,
1052 };
1053
1054 fio_sha3_384_init(&sha3_ctx);
1055 fill_sha3(&sha3_ctx, p, len);
1056}
1057
1058static void fill_sha3_512(struct verify_header *hdr, void *p, unsigned int len)
1059{
1060 struct vhdr_sha3_512 *vh = hdr_priv(hdr);
1061 struct fio_sha3_ctx sha3_ctx = {
1062 .sha = vh->sha,
1063 };
1064
1065 fio_sha3_512_init(&sha3_ctx);
1066 fill_sha3(&sha3_ctx, p, len);
1067}
1068
cd14cc10
JA
1069static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len)
1070{
546dfd9f 1071 struct vhdr_sha512 *vh = hdr_priv(hdr);
25dfa848 1072 struct fio_sha512_ctx sha512_ctx = {
546dfd9f 1073 .buf = vh->sha512,
cd14cc10
JA
1074 };
1075
25dfa848
JA
1076 fio_sha512_init(&sha512_ctx);
1077 fio_sha512_update(&sha512_ctx, p, len);
cd14cc10
JA
1078}
1079
1080static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len)
1081{
546dfd9f 1082 struct vhdr_sha256 *vh = hdr_priv(hdr);
25dfa848 1083 struct fio_sha256_ctx sha256_ctx = {
546dfd9f 1084 .buf = vh->sha256,
cd14cc10
JA
1085 };
1086
25dfa848
JA
1087 fio_sha256_init(&sha256_ctx);
1088 fio_sha256_update(&sha256_ctx, p, len);
017052b6 1089 fio_sha256_final(&sha256_ctx);
cd14cc10
JA
1090}
1091
7c353ceb
JA
1092static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len)
1093{
1094 struct vhdr_sha1 *vh = hdr_priv(hdr);
25dfa848 1095 struct fio_sha1_ctx sha1_ctx = {
7c353ceb
JA
1096 .H = vh->sha1,
1097 };
1098
25dfa848
JA
1099 fio_sha1_init(&sha1_ctx);
1100 fio_sha1_update(&sha1_ctx, p, len);
017052b6 1101 fio_sha1_final(&sha1_ctx);
7c353ceb
JA
1102}
1103
1e154bdb
JA
1104static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
1105{
546dfd9f
JA
1106 struct vhdr_crc7 *vh = hdr_priv(hdr);
1107
25dfa848 1108 vh->crc7 = fio_crc7(p, len);
1e154bdb
JA
1109}
1110
969f7ed3
JA
1111static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
1112{
546dfd9f
JA
1113 struct vhdr_crc16 *vh = hdr_priv(hdr);
1114
25dfa848 1115 vh->crc16 = fio_crc16(p, len);
969f7ed3
JA
1116}
1117
e29d1b70
JA
1118static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
1119{
546dfd9f
JA
1120 struct vhdr_crc32 *vh = hdr_priv(hdr);
1121
25dfa848 1122 vh->crc32 = fio_crc32(p, len);
e29d1b70
JA
1123}
1124
bac39e0e
JA
1125static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len)
1126{
1127 struct vhdr_crc32 *vh = hdr_priv(hdr);
1128
25dfa848 1129 vh->crc32 = fio_crc32c(p, len);
bac39e0e
JA
1130}
1131
d77a7af3
JA
1132static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
1133{
546dfd9f
JA
1134 struct vhdr_crc64 *vh = hdr_priv(hdr);
1135
25dfa848 1136 vh->crc64 = fio_crc64(p, len);
d77a7af3
JA
1137}
1138
e29d1b70
JA
1139static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
1140{
546dfd9f 1141 struct vhdr_md5 *vh = hdr_priv(hdr);
25dfa848 1142 struct fio_md5_ctx md5_ctx = {
546dfd9f 1143 .hash = (uint32_t *) vh->md5_digest,
8c432325 1144 };
e29d1b70 1145
25dfa848
JA
1146 fio_md5_init(&md5_ctx);
1147 fio_md5_update(&md5_ctx, p, len);
017052b6 1148 fio_md5_final(&md5_ctx);
e29d1b70
JA
1149}
1150
b638d82f
RP
1151static void __fill_hdr(struct thread_data *td, struct io_u *io_u,
1152 struct verify_header *hdr, unsigned int header_num,
1153 unsigned int header_len, uint64_t rand_seed)
9ba987cc
JA
1154{
1155 void *p = hdr;
1156
1157 hdr->magic = FIO_HDR_MAGIC;
b638d82f
RP
1158 hdr->verify_type = td->o.verify;
1159 hdr->len = header_len;
9ba987cc 1160 hdr->rand_seed = rand_seed;
b638d82f
RP
1161 hdr->offset = io_u->offset + header_num * td->o.verify_interval;
1162 hdr->time_sec = io_u->start_time.tv_sec;
faa9b2b2 1163 hdr->time_nsec = io_u->start_time.tv_nsec;
b638d82f
RP
1164 hdr->thread = td->thread_number;
1165 hdr->numberio = io_u->numberio;
9ba987cc
JA
1166 hdr->crc32 = fio_crc32c(p, offsetof(struct verify_header, crc32));
1167}
1168
ed3a433d 1169
b638d82f
RP
1170static void fill_hdr(struct thread_data *td, struct io_u *io_u,
1171 struct verify_header *hdr, unsigned int header_num,
1172 unsigned int header_len, uint64_t rand_seed)
ed3a433d 1173{
b638d82f
RP
1174 if (td->o.verify != VERIFY_PATTERN_NO_HDR)
1175 __fill_hdr(td, io_u, hdr, header_num, header_len, rand_seed);
ed3a433d
JA
1176}
1177
7d9fb455
JA
1178static void populate_hdr(struct thread_data *td, struct io_u *io_u,
1179 struct verify_header *hdr, unsigned int header_num,
1180 unsigned int header_len)
1181{
1182 unsigned int data_len;
d637b8b8
TK
1183 void *data;
1184 char *p;
7d9fb455 1185
d637b8b8 1186 p = (char *) hdr;
7d9fb455 1187
b638d82f 1188 fill_hdr(td, io_u, hdr, header_num, header_len, io_u->rand_seed);
f65d1c26 1189
ed3a433d 1190 data_len = header_len - hdr_size(td, hdr);
7d9fb455 1191
ed3a433d 1192 data = p + hdr_size(td, hdr);
7d9fb455
JA
1193 switch (td->o.verify) {
1194 case VERIFY_MD5:
1195 dprint(FD_VERIFY, "fill md5 io_u %p, len %u\n",
1196 io_u, hdr->len);
1197 fill_md5(hdr, data, data_len);
1198 break;
1199 case VERIFY_CRC64:
1200 dprint(FD_VERIFY, "fill crc64 io_u %p, len %u\n",
1201 io_u, hdr->len);
1202 fill_crc64(hdr, data, data_len);
1203 break;
1204 case VERIFY_CRC32C:
1205 case VERIFY_CRC32C_INTEL:
1206 dprint(FD_VERIFY, "fill crc32c io_u %p, len %u\n",
1207 io_u, hdr->len);
1208 fill_crc32c(hdr, data, data_len);
1209 break;
1210 case VERIFY_CRC32:
1211 dprint(FD_VERIFY, "fill crc32 io_u %p, len %u\n",
1212 io_u, hdr->len);
1213 fill_crc32(hdr, data, data_len);
1214 break;
1215 case VERIFY_CRC16:
1216 dprint(FD_VERIFY, "fill crc16 io_u %p, len %u\n",
1217 io_u, hdr->len);
1218 fill_crc16(hdr, data, data_len);
1219 break;
1220 case VERIFY_CRC7:
1221 dprint(FD_VERIFY, "fill crc7 io_u %p, len %u\n",
1222 io_u, hdr->len);
1223 fill_crc7(hdr, data, data_len);
1224 break;
1225 case VERIFY_SHA256:
1226 dprint(FD_VERIFY, "fill sha256 io_u %p, len %u\n",
1227 io_u, hdr->len);
1228 fill_sha256(hdr, data, data_len);
1229 break;
1230 case VERIFY_SHA512:
1231 dprint(FD_VERIFY, "fill sha512 io_u %p, len %u\n",
1232 io_u, hdr->len);
1233 fill_sha512(hdr, data, data_len);
1234 break;
ae3a5acc
JA
1235 case VERIFY_SHA3_224:
1236 dprint(FD_VERIFY, "fill sha3-224 io_u %p, len %u\n",
1237 io_u, hdr->len);
1238 fill_sha3_224(hdr, data, data_len);
1239 break;
1240 case VERIFY_SHA3_256:
1241 dprint(FD_VERIFY, "fill sha3-256 io_u %p, len %u\n",
1242 io_u, hdr->len);
1243 fill_sha3_256(hdr, data, data_len);
1244 break;
1245 case VERIFY_SHA3_384:
1246 dprint(FD_VERIFY, "fill sha3-384 io_u %p, len %u\n",
1247 io_u, hdr->len);
1248 fill_sha3_384(hdr, data, data_len);
1249 break;
1250 case VERIFY_SHA3_512:
1251 dprint(FD_VERIFY, "fill sha3-512 io_u %p, len %u\n",
1252 io_u, hdr->len);
1253 fill_sha3_512(hdr, data, data_len);
1254 break;
844ea602
JA
1255 case VERIFY_XXHASH:
1256 dprint(FD_VERIFY, "fill xxhash io_u %p, len %u\n",
1257 io_u, hdr->len);
1258 fill_xxhash(hdr, data, data_len);
1259 break;
7d9fb455
JA
1260 case VERIFY_SHA1:
1261 dprint(FD_VERIFY, "fill sha1 io_u %p, len %u\n",
1262 io_u, hdr->len);
1263 fill_sha1(hdr, data, data_len);
1264 break;
b638d82f 1265 case VERIFY_HDR_ONLY:
92bf48d5 1266 case VERIFY_PATTERN:
ed3a433d 1267 case VERIFY_PATTERN_NO_HDR:
92bf48d5
JA
1268 /* nothing to do here */
1269 break;
7d9fb455
JA
1270 default:
1271 log_err("fio: bad verify type: %d\n", td->o.verify);
1272 assert(0);
1273 }
ed3a433d
JA
1274
1275 if (td->o.verify_offset && hdr_size(td, hdr))
1276 memswp(p, p + td->o.verify_offset, hdr_size(td, hdr));
7d9fb455
JA
1277}
1278
e29d1b70
JA
1279/*
1280 * fill body of io_u->buf with random data and add a header with the
c50ca7bd 1281 * checksum of choice
e29d1b70
JA
1282 */
1283void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
1284{
9cc3d150
JA
1285 if (td->o.verify == VERIFY_NULL)
1286 return;
1287
da0a7bd2
JC
1288 io_u->numberio = td->io_issues[io_u->ddir];
1289
c50ca7bd 1290 fill_pattern_headers(td, io_u, 0, 0);
e29d1b70
JA
1291}
1292
1293int get_next_verify(struct thread_data *td, struct io_u *io_u)
1294{
8de8f047 1295 struct io_piece *ipo = NULL;
e29d1b70 1296
d2d7fa53
JA
1297 /*
1298 * this io_u is from a requeue, we already filled the offsets
1299 */
1300 if (io_u->file)
1301 return 0;
1302
8de8f047 1303 if (!RB_EMPTY_ROOT(&td->io_hist_tree)) {
e96c0125 1304 struct fio_rb_node *n = rb_first(&td->io_hist_tree);
e29d1b70 1305
8de8f047 1306 ipo = rb_entry(n, struct io_piece, rb_node);
f9401285
JA
1307
1308 /*
1309 * Ensure that the associated IO has completed
1310 */
1311 read_barrier();
1312 if (ipo->flags & IP_F_IN_FLIGHT)
1313 goto nothing;
1314
4b87898e 1315 rb_erase(n, &td->io_hist_tree);
a917a8b3
JA
1316 assert(ipo->flags & IP_F_ONRB);
1317 ipo->flags &= ~IP_F_ONRB;
01743ee1 1318 } else if (!flist_empty(&td->io_hist_list)) {
9342d5f8 1319 ipo = flist_first_entry(&td->io_hist_list, struct io_piece, list);
f9401285
JA
1320
1321 /*
1322 * Ensure that the associated IO has completed
1323 */
1324 read_barrier();
1325 if (ipo->flags & IP_F_IN_FLIGHT)
1326 goto nothing;
1327
01743ee1 1328 flist_del(&ipo->list);
a917a8b3
JA
1329 assert(ipo->flags & IP_F_ONLIST);
1330 ipo->flags &= ~IP_F_ONLIST;
8de8f047 1331 }
e29d1b70 1332
8de8f047 1333 if (ipo) {
0d29de83
JA
1334 td->io_hist_len--;
1335
e29d1b70
JA
1336 io_u->offset = ipo->offset;
1337 io_u->buflen = ipo->len;
da0a7bd2 1338 io_u->numberio = ipo->numberio;
36167d82 1339 io_u->file = ipo->file;
1651e431 1340 io_u_set(td, io_u, IO_U_F_VER_LIST);
97af62ce 1341
0d29de83 1342 if (ipo->flags & IP_F_TRIMMED)
1651e431 1343 io_u_set(td, io_u, IO_U_F_TRIMMED);
0d29de83 1344
d6aed795 1345 if (!fio_file_open(io_u->file)) {
97af62ce
JA
1346 int r = td_io_open_file(td, io_u->file);
1347
bd6f78b2
JA
1348 if (r) {
1349 dprint(FD_VERIFY, "failed file %s open\n",
1350 io_u->file->file_name);
97af62ce 1351 return 1;
bd6f78b2 1352 }
97af62ce
JA
1353 }
1354
1355 get_file(ipo->file);
d6aed795 1356 assert(fio_file_open(io_u->file));
e29d1b70 1357 io_u->ddir = DDIR_READ;
36167d82
JA
1358 io_u->xfer_buf = io_u->buf;
1359 io_u->xfer_buflen = io_u->buflen;
0d29de83
JA
1360
1361 remove_trim_entry(td, ipo);
e29d1b70 1362 free(ipo);
bd6f78b2 1363 dprint(FD_VERIFY, "get_next_verify: ret io_u %p\n", io_u);
c4b6117b
PV
1364
1365 if (!td->o.verify_pattern_bytes) {
d6b72507 1366 io_u->rand_seed = __rand(&td->verify_state);
c4b6117b 1367 if (sizeof(int) != sizeof(long *))
d6b72507 1368 io_u->rand_seed *= __rand(&td->verify_state);
c4b6117b 1369 }
e29d1b70
JA
1370 return 0;
1371 }
1372
f9401285 1373nothing:
bd6f78b2 1374 dprint(FD_VERIFY, "get_next_verify: empty\n");
e29d1b70
JA
1375 return 1;
1376}
e8462bd8 1377
dc5bfbb2
JA
1378void fio_verify_init(struct thread_data *td)
1379{
1380 if (td->o.verify == VERIFY_CRC32C_INTEL ||
1381 td->o.verify == VERIFY_CRC32C) {
214e2d56 1382 crc32c_arm64_probe();
dc5bfbb2
JA
1383 crc32c_intel_probe();
1384 }
1385}
1386
e8462bd8
JA
1387static void *verify_async_thread(void *data)
1388{
1389 struct thread_data *td = data;
1390 struct io_u *io_u;
1391 int ret = 0;
1392
b2a9e649 1393 if (fio_option_is_set(&td->o, verify_cpumask) &&
e8462bd8
JA
1394 fio_setaffinity(td->pid, td->o.verify_cpumask)) {
1395 log_err("fio: failed setting verify thread affinity\n");
1396 goto done;
1397 }
1398
1399 do {
e53ab27c
JA
1400 FLIST_HEAD(list);
1401
e8462bd8
JA
1402 read_barrier();
1403 if (td->verify_thread_exit)
1404 break;
1405
1406 pthread_mutex_lock(&td->io_u_lock);
1407
1408 while (flist_empty(&td->verify_list) &&
1409 !td->verify_thread_exit) {
b36e298b
JA
1410 ret = pthread_cond_wait(&td->verify_cond,
1411 &td->io_u_lock);
e8462bd8
JA
1412 if (ret) {
1413 pthread_mutex_unlock(&td->io_u_lock);
1414 break;
1415 }
1416 }
1417
e53ab27c
JA
1418 flist_splice_init(&td->verify_list, &list);
1419 pthread_mutex_unlock(&td->io_u_lock);
1420
1421 if (flist_empty(&list))
e8462bd8 1422 continue;
e8462bd8 1423
e53ab27c 1424 while (!flist_empty(&list)) {
9342d5f8 1425 io_u = flist_first_entry(&list, struct io_u, verify_list);
f8b0bd10
JA
1426 flist_del_init(&io_u->verify_list);
1427
1651e431 1428 io_u_set(td, io_u, IO_U_F_NO_FILE_PUT);
f8b0bd10 1429 ret = verify_io_u(td, &io_u);
e8462bd8 1430
e53ab27c 1431 put_io_u(td, io_u);
d561f2ab
JA
1432 if (!ret)
1433 continue;
8b28bd41 1434 if (td_non_fatal_error(td, ERROR_TYPE_VERIFY_BIT, ret)) {
d561f2ab
JA
1435 update_error_count(td, ret);
1436 td_clear_error(td);
1437 ret = 0;
1438 }
e53ab27c 1439 }
e8462bd8
JA
1440 } while (!ret);
1441
d561f2ab
JA
1442 if (ret) {
1443 td_verror(td, ret, "async_verify");
f3e6cb95 1444 if (td->o.verify_fatal)
ebea2133 1445 fio_mark_td_terminate(td);
d561f2ab
JA
1446 }
1447
e8462bd8
JA
1448done:
1449 pthread_mutex_lock(&td->io_u_lock);
1450 td->nr_verify_threads--;
564de8d1 1451 pthread_cond_signal(&td->free_cond);
e8462bd8
JA
1452 pthread_mutex_unlock(&td->io_u_lock);
1453
e8462bd8
JA
1454 return NULL;
1455}
1456
1457int verify_async_init(struct thread_data *td)
1458{
1459 int i, ret;
304a47c7
VA
1460 pthread_attr_t attr;
1461
1462 pthread_attr_init(&attr);
45213f1b 1463 pthread_attr_setstacksize(&attr, 2 * PTHREAD_STACK_MIN);
e8462bd8
JA
1464
1465 td->verify_thread_exit = 0;
1466
1467 td->verify_threads = malloc(sizeof(pthread_t) * td->o.verify_async);
1468 for (i = 0; i < td->o.verify_async; i++) {
304a47c7 1469 ret = pthread_create(&td->verify_threads[i], &attr,
e8462bd8
JA
1470 verify_async_thread, td);
1471 if (ret) {
1472 log_err("fio: async verify creation failed: %s\n",
1473 strerror(ret));
1474 break;
1475 }
1476 ret = pthread_detach(td->verify_threads[i]);
1477 if (ret) {
1478 log_err("fio: async verify thread detach failed: %s\n",
1479 strerror(ret));
1480 break;
1481 }
1482 td->nr_verify_threads++;
1483 }
1484
304a47c7
VA
1485 pthread_attr_destroy(&attr);
1486
e8462bd8 1487 if (i != td->o.verify_async) {
e40823b1 1488 log_err("fio: only %d verify threads started, exiting\n", i);
564de8d1
BVA
1489
1490 pthread_mutex_lock(&td->io_u_lock);
e8462bd8 1491 td->verify_thread_exit = 1;
e8462bd8 1492 pthread_cond_broadcast(&td->verify_cond);
564de8d1
BVA
1493 pthread_mutex_unlock(&td->io_u_lock);
1494
e8462bd8
JA
1495 return 1;
1496 }
1497
1498 return 0;
1499}
1500
1501void verify_async_exit(struct thread_data *td)
1502{
564de8d1 1503 pthread_mutex_lock(&td->io_u_lock);
e8462bd8 1504 td->verify_thread_exit = 1;
e8462bd8
JA
1505 pthread_cond_broadcast(&td->verify_cond);
1506
e8462bd8
JA
1507 while (td->nr_verify_threads)
1508 pthread_cond_wait(&td->free_cond, &td->io_u_lock);
1509
1510 pthread_mutex_unlock(&td->io_u_lock);
1511 free(td->verify_threads);
1512 td->verify_threads = NULL;
1513}
ca09be4b 1514
61b9861d
RP
1515int paste_blockoff(char *buf, unsigned int len, void *priv)
1516{
1517 struct io_u *io = priv;
1518 unsigned long long off;
1519
3376ecf4 1520 typecheck(__typeof__(off), io->offset);
61b9861d
RP
1521 off = cpu_to_le64((uint64_t)io->offset);
1522 len = min(len, (unsigned int)sizeof(off));
1523 memcpy(buf, &off, len);
1524 return 0;
1525}
1526
94a6e1bb
JA
1527static int __fill_file_completions(struct thread_data *td,
1528 struct thread_io_list *s,
1529 struct fio_file *f, unsigned int *index)
1530{
1531 unsigned int comps;
1532 int i, j;
1533
1534 if (!f->last_write_comp)
1535 return 0;
1536
1537 if (td->io_blocks[DDIR_WRITE] < td->o.iodepth)
1538 comps = td->io_blocks[DDIR_WRITE];
1539 else
1540 comps = td->o.iodepth;
1541
1542 j = f->last_write_idx - 1;
1543 for (i = 0; i < comps; i++) {
1544 if (j == -1)
1545 j = td->o.iodepth - 1;
1546 s->comps[*index].fileno = __cpu_to_le64(f->fileno);
1547 s->comps[*index].offset = cpu_to_le64(f->last_write_comp[j]);
1548 (*index)++;
1549 j--;
1550 }
1551
1552 return comps;
1553}
1554
1555static int fill_file_completions(struct thread_data *td,
1556 struct thread_io_list *s, unsigned int *index)
1557{
1558 struct fio_file *f;
1559 unsigned int i;
1560 int comps = 0;
1561
1562 for_each_file(td, f, i)
1563 comps += __fill_file_completions(td, s, f, index);
1564
1565 return comps;
1566}
1567
ca09be4b
JA
1568struct all_io_list *get_all_io_list(int save_mask, size_t *sz)
1569{
1570 struct all_io_list *rep;
1571 struct thread_data *td;
1572 size_t depth;
1573 void *next;
1574 int i, nr;
1575
1576 compiletime_assert(sizeof(struct all_io_list) == 8, "all_io_list");
1577
1578 /*
1579 * Calculate reply space needed. We need one 'io_state' per thread,
1580 * and the size will vary depending on depth.
1581 */
1582 depth = 0;
1583 nr = 0;
1584 for_each_td(td, i) {
1585 if (save_mask != IO_LIST_ALL && (i + 1) != save_mask)
1586 continue;
1587 td->stop_io = 1;
1588 td->flags |= TD_F_VSTATE_SAVED;
94a6e1bb 1589 depth += (td->o.iodepth * td->o.nr_files);
ca09be4b
JA
1590 nr++;
1591 }
1592
1593 if (!nr)
1594 return NULL;
1595
1596 *sz = sizeof(*rep);
1597 *sz += nr * sizeof(struct thread_io_list);
94a6e1bb 1598 *sz += depth * sizeof(struct file_comp);
ca09be4b 1599 rep = malloc(*sz);
c68ce5ea 1600 memset(rep, 0, *sz);
ca09be4b
JA
1601
1602 rep->threads = cpu_to_le64((uint64_t) nr);
1603
1604 next = &rep->state[0];
1605 for_each_td(td, i) {
1606 struct thread_io_list *s = next;
94a6e1bb 1607 unsigned int comps, index = 0;
ca09be4b
JA
1608
1609 if (save_mask != IO_LIST_ALL && (i + 1) != save_mask)
1610 continue;
1611
94a6e1bb 1612 comps = fill_file_completions(td, s, &index);
ca09be4b
JA
1613
1614 s->no_comps = cpu_to_le64((uint64_t) comps);
1615 s->depth = cpu_to_le64((uint64_t) td->o.iodepth);
94a6e1bb 1616 s->nofiles = cpu_to_le64((uint64_t) td->o.nr_files);
ca09be4b
JA
1617 s->numberio = cpu_to_le64((uint64_t) td->io_issues[DDIR_WRITE]);
1618 s->index = cpu_to_le64((uint64_t) i);
c3546b53
JA
1619 if (td->random_state.use64) {
1620 s->rand.state64.s[0] = cpu_to_le64(td->random_state.state64.s1);
1621 s->rand.state64.s[1] = cpu_to_le64(td->random_state.state64.s2);
1622 s->rand.state64.s[2] = cpu_to_le64(td->random_state.state64.s3);
1623 s->rand.state64.s[3] = cpu_to_le64(td->random_state.state64.s4);
1624 s->rand.state64.s[4] = cpu_to_le64(td->random_state.state64.s5);
1625 s->rand.state64.s[5] = 0;
1626 s->rand.use64 = cpu_to_le64((uint64_t)1);
1627 } else {
1628 s->rand.state32.s[0] = cpu_to_le32(td->random_state.state32.s1);
1629 s->rand.state32.s[1] = cpu_to_le32(td->random_state.state32.s2);
1630 s->rand.state32.s[2] = cpu_to_le32(td->random_state.state32.s3);
1631 s->rand.state32.s[3] = 0;
1632 s->rand.use64 = 0;
1633 }
1dc06a8f
JA
1634 s->name[sizeof(s->name) - 1] = '\0';
1635 strncpy((char *) s->name, td->o.name, sizeof(s->name) - 1);
ca09be4b
JA
1636 next = io_list_next(s);
1637 }
1638
1639 return rep;
1640}
1641
1642static int open_state_file(const char *name, const char *prefix, int num,
1643 int for_write)
1644{
d117b2bd 1645 char out[PATH_MAX];
ca09be4b
JA
1646 int flags;
1647 int fd;
1648
1649 if (for_write)
1650 flags = O_CREAT | O_TRUNC | O_WRONLY | O_SYNC;
1651 else
1652 flags = O_RDONLY;
1653
e499aedc 1654 verify_state_gen_name(out, sizeof(out), name, prefix, num);
ca09be4b
JA
1655
1656 fd = open(out, flags, 0644);
1657 if (fd == -1) {
1658 perror("fio: open state file");
d117b2bd 1659 log_err("fio: state file: %s (for_write=%d)\n", out, for_write);
ca09be4b
JA
1660 return -1;
1661 }
1662
1663 return fd;
1664}
1665
1666static int write_thread_list_state(struct thread_io_list *s,
1667 const char *prefix)
1668{
1669 struct verify_state_hdr hdr;
1670 uint64_t crc;
1671 ssize_t ret;
1672 int fd;
1673
1674 fd = open_state_file((const char *) s->name, prefix, s->index, 1);
1675 if (fd == -1)
1676 return 1;
1677
1678 crc = fio_crc32c((void *)s, thread_io_list_sz(s));
1679
1680 hdr.version = cpu_to_le64((uint64_t) VSTATE_HDR_VERSION);
1681 hdr.size = cpu_to_le64((uint64_t) thread_io_list_sz(s));
1682 hdr.crc = cpu_to_le64(crc);
1683 ret = write(fd, &hdr, sizeof(hdr));
1684 if (ret != sizeof(hdr))
1685 goto write_fail;
1686
1687 ret = write(fd, s, thread_io_list_sz(s));
1688 if (ret != thread_io_list_sz(s)) {
1689write_fail:
1690 if (ret < 0)
1691 perror("fio: write state file");
1692 log_err("fio: failed to write state file\n");
1693 ret = 1;
1694 } else
1695 ret = 0;
1696
1697 close(fd);
1698 return ret;
1699}
1700
1701void __verify_save_state(struct all_io_list *state, const char *prefix)
1702{
1703 struct thread_io_list *s = &state->state[0];
1704 unsigned int i;
1705
1706 for (i = 0; i < le64_to_cpu(state->threads); i++) {
1707 write_thread_list_state(s, prefix);
1708 s = io_list_next(s);
1709 }
1710}
1711
d264264a 1712void verify_save_state(int mask)
ca09be4b
JA
1713{
1714 struct all_io_list *state;
1715 size_t sz;
1716
d264264a 1717 state = get_all_io_list(mask, &sz);
ca09be4b 1718 if (state) {
d264264a
JA
1719 char prefix[PATH_MAX];
1720
1721 if (aux_path)
53a7af85 1722 sprintf(prefix, "%s%clocal", aux_path, FIO_OS_PATH_SEPARATOR);
d264264a 1723 else
c6d140fb 1724 strcpy(prefix, "local");
d264264a
JA
1725
1726 __verify_save_state(state, prefix);
ca09be4b
JA
1727 free(state);
1728 }
1729}
1730
1731void verify_free_state(struct thread_data *td)
1732{
1733 if (td->vstate)
1734 free(td->vstate);
1735}
1736
94a6e1bb 1737void verify_assign_state(struct thread_data *td, void *p)
ca09be4b 1738{
94a6e1bb 1739 struct thread_io_list *s = p;
ca09be4b
JA
1740 int i;
1741
94a6e1bb
JA
1742 s->no_comps = le64_to_cpu(s->no_comps);
1743 s->depth = le32_to_cpu(s->depth);
1744 s->nofiles = le32_to_cpu(s->nofiles);
1745 s->numberio = le64_to_cpu(s->numberio);
1746 s->rand.use64 = le64_to_cpu(s->rand.use64);
c3546b53 1747
94a6e1bb
JA
1748 if (s->rand.use64) {
1749 for (i = 0; i < 6; i++)
1750 s->rand.state64.s[i] = le64_to_cpu(s->rand.state64.s[i]);
c3546b53 1751 } else {
94a6e1bb
JA
1752 for (i = 0; i < 4; i++)
1753 s->rand.state32.s[i] = le32_to_cpu(s->rand.state32.s[i]);
1754 }
c3546b53 1755
94a6e1bb
JA
1756 for (i = 0; i < s->no_comps; i++) {
1757 s->comps[i].fileno = le64_to_cpu(s->comps[i].fileno);
1758 s->comps[i].offset = le64_to_cpu(s->comps[i].offset);
c3546b53 1759 }
ca09be4b 1760
94a6e1bb 1761 td->vstate = p;
ca09be4b
JA
1762}
1763
94a6e1bb 1764int verify_state_hdr(struct verify_state_hdr *hdr, struct thread_io_list *s)
ca09be4b
JA
1765{
1766 uint64_t crc;
1767
1768 hdr->version = le64_to_cpu(hdr->version);
1769 hdr->size = le64_to_cpu(hdr->size);
1770 hdr->crc = le64_to_cpu(hdr->crc);
1771
94a6e1bb 1772 if (hdr->version != VSTATE_HDR_VERSION)
ca09be4b
JA
1773 return 1;
1774
1775 crc = fio_crc32c((void *)s, hdr->size);
1776 if (crc != hdr->crc)
1777 return 1;
1778
1779 return 0;
1780}
1781
1782int verify_load_state(struct thread_data *td, const char *prefix)
1783{
ca09be4b 1784 struct verify_state_hdr hdr;
c3546b53 1785 void *s = NULL;
ca09be4b
JA
1786 uint64_t crc;
1787 ssize_t ret;
1788 int fd;
1789
1790 if (!td->o.verify_state)
1791 return 0;
1792
1793 fd = open_state_file(td->o.name, prefix, td->thread_number - 1, 0);
1794 if (fd == -1)
1795 return 1;
1796
1797 ret = read(fd, &hdr, sizeof(hdr));
1798 if (ret != sizeof(hdr)) {
1799 if (ret < 0)
1800 td_verror(td, errno, "read verify state hdr");
1801 log_err("fio: failed reading verify state header\n");
1802 goto err;
1803 }
1804
1805 hdr.version = le64_to_cpu(hdr.version);
1806 hdr.size = le64_to_cpu(hdr.size);
1807 hdr.crc = le64_to_cpu(hdr.crc);
1808
94a6e1bb
JA
1809 if (hdr.version != VSTATE_HDR_VERSION) {
1810 log_err("fio: unsupported (%d) version in verify state header\n",
1811 (unsigned int) hdr.version);
ca09be4b
JA
1812 goto err;
1813 }
1814
1815 s = malloc(hdr.size);
1816 ret = read(fd, s, hdr.size);
1817 if (ret != hdr.size) {
1818 if (ret < 0)
1819 td_verror(td, errno, "read verify state");
1820 log_err("fio: failed reading verity state\n");
1821 goto err;
1822 }
1823
c3546b53 1824 crc = fio_crc32c(s, hdr.size);
ca09be4b
JA
1825 if (crc != hdr.crc) {
1826 log_err("fio: verify state is corrupt\n");
1827 goto err;
1828 }
1829
1830 close(fd);
1831
94a6e1bb 1832 verify_assign_state(td, s);
ca09be4b
JA
1833 return 0;
1834err:
1835 if (s)
1836 free(s);
1837 close(fd);
1838 return 1;
1839}
1840
1841/*
1842 * Use the loaded verify state to know when to stop doing verification
1843 */
1844int verify_state_should_stop(struct thread_data *td, struct io_u *io_u)
1845{
1846 struct thread_io_list *s = td->vstate;
94a6e1bb 1847 struct fio_file *f = io_u->file;
ca09be4b
JA
1848 int i;
1849
94a6e1bb 1850 if (!s || !f)
ca09be4b
JA
1851 return 0;
1852
1853 /*
def00095
JA
1854 * If we're not into the window of issues - depth yet, continue. If
1855 * issue is shorter than depth, do check.
ca09be4b 1856 */
def00095
JA
1857 if ((td->io_blocks[DDIR_READ] < s->depth ||
1858 s->numberio - td->io_blocks[DDIR_READ] > s->depth) &&
1859 s->numberio > s->depth)
ca09be4b
JA
1860 return 0;
1861
1862 /*
1863 * We're in the window of having to check if this io was
1864 * completed or not. If the IO was seen as completed, then
1865 * lets verify it.
1866 */
94a6e1bb
JA
1867 for (i = 0; i < s->no_comps; i++) {
1868 if (s->comps[i].fileno != f->fileno)
1869 continue;
1870 if (io_u->offset == s->comps[i].offset)
ca09be4b 1871 return 0;
94a6e1bb 1872 }
ca09be4b
JA
1873
1874 /*
1875 * Not found, we have to stop
1876 */
1877 return 1;
1878}