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server: cleanup fio_server_parse_string()
[fio.git] / verify.c
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1/*
2 * IO verification helpers
3 */
4#include <unistd.h>
5#include <fcntl.h>
6#include <string.h>
7#include <assert.h>
8#include <pthread.h>
9#include <libgen.h>
10
11#include "fio.h"
12#include "verify.h"
13#include "smalloc.h"
14#include "trim.h"
15#include "lib/rand.h"
16
17#include "crc/md5.h"
18#include "crc/crc64.h"
19#include "crc/crc32.h"
20#include "crc/crc32c.h"
21#include "crc/crc16.h"
22#include "crc/crc7.h"
23#include "crc/sha256.h"
24#include "crc/sha512.h"
25#include "crc/sha1.h"
26
27static void populate_hdr(struct thread_data *td, struct io_u *io_u,
28 struct verify_header *hdr, unsigned int header_num,
29 unsigned int header_len);
30
31void fill_pattern(struct thread_data *td, void *p, unsigned int len, struct io_u *io_u, unsigned long seed, int use_seed)
32{
33 switch (td->o.verify_pattern_bytes) {
34 case 0:
35 dprint(FD_VERIFY, "fill random bytes len=%u\n", len);
36 if (use_seed)
37 __fill_random_buf(p, len, seed);
38 else
39 io_u->rand_seed = fill_random_buf(&td->buf_state, p, len);
40 break;
41 case 1:
42 /*
43 * See below write barrier comment
44 */
45#if 0
46 read_barrier();
47 if (io_u->buf_filled_len >= len) {
48 dprint(FD_VERIFY, "using already filled verify pattern b=0 len=%u\n", len);
49 return;
50 }
51#endif
52 dprint(FD_VERIFY, "fill verify pattern b=0 len=%u\n", len);
53 memset(p, td->o.verify_pattern[0], len);
54 /*
55 * We need to ensure that the pattern stores are seen before
56 * the fill length store, or we could observe headers that
57 * aren't valid to the extent notified by the fill length
58 */
59 write_barrier();
60 io_u->buf_filled_len = len;
61 break;
62 default: {
63 unsigned int i = 0, size = 0;
64 unsigned char *b = p;
65
66#if 0
67 read_barrier();
68 if (io_u->buf_filled_len >= len) {
69 dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
70 td->o.verify_pattern_bytes, len);
71 return;
72 }
73#endif
74 dprint(FD_VERIFY, "fill verify pattern b=%d len=%u\n",
75 td->o.verify_pattern_bytes, len);
76
77 while (i < len) {
78 size = td->o.verify_pattern_bytes;
79 if (size > (len - i))
80 size = len - i;
81 memcpy(b+i, td->o.verify_pattern, size);
82 i += size;
83 }
84 write_barrier();
85 io_u->buf_filled_len = len;
86 break;
87 }
88 }
89}
90
91static unsigned int get_hdr_inc(struct thread_data *td, struct io_u *io_u)
92{
93 unsigned int hdr_inc;
94
95 hdr_inc = io_u->buflen;
96 if (td->o.verify_interval)
97 hdr_inc = td->o.verify_interval;
98
99 return hdr_inc;
100}
101
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
109 fill_pattern(td, p, io_u->buflen, io_u, seed, use_seed);
110
111 hdr_inc = get_hdr_inc(td, io_u);
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
120static void memswp(void *buf1, void *buf2, unsigned int len)
121{
122 char swap[200];
123
124 assert(len <= sizeof(swap));
125
126 memcpy(&swap, buf1, len);
127 memcpy(buf1, buf2, len);
128 memcpy(buf2, &swap, len);
129}
130
131static void hexdump(void *buffer, int len)
132{
133 unsigned char *p = buffer;
134 int i;
135
136 for (i = 0; i < len; i++)
137 log_err("%02x", p[i]);
138 log_err("\n");
139}
140
141/*
142 * Prepare for seperation of verify_header and checksum header
143 */
144static inline unsigned int __hdr_size(int verify_type)
145{
146 unsigned int len = 0;
147
148 switch (verify_type) {
149 case VERIFY_NONE:
150 case VERIFY_NULL:
151 len = 0;
152 break;
153 case VERIFY_MD5:
154 len = sizeof(struct vhdr_md5);
155 break;
156 case VERIFY_CRC64:
157 len = sizeof(struct vhdr_crc64);
158 break;
159 case VERIFY_CRC32C:
160 case VERIFY_CRC32:
161 case VERIFY_CRC32C_INTEL:
162 len = sizeof(struct vhdr_crc32);
163 break;
164 case VERIFY_CRC16:
165 len = sizeof(struct vhdr_crc16);
166 break;
167 case VERIFY_CRC7:
168 len = sizeof(struct vhdr_crc7);
169 break;
170 case VERIFY_SHA256:
171 len = sizeof(struct vhdr_sha256);
172 break;
173 case VERIFY_SHA512:
174 len = sizeof(struct vhdr_sha512);
175 break;
176 case VERIFY_META:
177 len = sizeof(struct vhdr_meta);
178 break;
179 case VERIFY_SHA1:
180 len = sizeof(struct vhdr_sha1);
181 break;
182 case VERIFY_PATTERN:
183 len = 0;
184 break;
185 default:
186 log_err("fio: unknown verify header!\n");
187 assert(0);
188 }
189
190 return len + sizeof(struct verify_header);
191}
192
193static inline unsigned int hdr_size(struct verify_header *hdr)
194{
195 return __hdr_size(hdr->verify_type);
196}
197
198static void *hdr_priv(struct verify_header *hdr)
199{
200 void *priv = hdr;
201
202 return priv + sizeof(struct verify_header);
203}
204
205/*
206 * Verify container, pass info to verify handlers and allow them to
207 * pass info back in case of error
208 */
209struct vcont {
210 /*
211 * Input
212 */
213 struct io_u *io_u;
214 unsigned int hdr_num;
215 struct thread_data *td;
216
217 /*
218 * Output, only valid in case of error
219 */
220 const char *name;
221 void *good_crc;
222 void *bad_crc;
223 unsigned int crc_len;
224};
225
226static void dump_buf(char *buf, unsigned int len, unsigned long long offset,
227 const char *type, struct fio_file *f)
228{
229 char *ptr, fname[256];
230 int ret, fd;
231
232 ptr = strdup(f->file_name);
233 strcpy(fname, basename(ptr));
234
235 sprintf(fname + strlen(fname), ".%llu.%s", offset, type);
236
237 fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 0644);
238 if (fd < 0) {
239 perror("open verify buf file");
240 return;
241 }
242
243 while (len) {
244 ret = write(fd, buf, len);
245 if (!ret)
246 break;
247 else if (ret < 0) {
248 perror("write verify buf file");
249 break;
250 }
251 len -= ret;
252 buf += ret;
253 }
254
255 close(fd);
256 log_err(" %s data dumped as %s\n", type, fname);
257 free(ptr);
258}
259
260/*
261 * Dump the contents of the read block and re-generate the correct data
262 * and dump that too.
263 */
264static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
265{
266 struct thread_data *td = vc->td;
267 struct io_u *io_u = vc->io_u;
268 unsigned long hdr_offset;
269 struct io_u dummy;
270 void *buf;
271
272 /*
273 * Dump the contents we just read off disk
274 */
275 hdr_offset = vc->hdr_num * hdr->len;
276
277 dump_buf(io_u->buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
278 "received", vc->io_u->file);
279
280 /*
281 * Allocate a new buf and re-generate the original data
282 */
283 buf = malloc(io_u->buflen);
284 dummy = *io_u;
285 dummy.buf = buf;
286 dummy.rand_seed = hdr->rand_seed;
287 dummy.buf_filled_len = 0;
288
289 fill_pattern_headers(td, &dummy, hdr->rand_seed, 1);
290
291 dump_buf(buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
292 "expected", vc->io_u->file);
293 free(buf);
294}
295
296static void log_verify_failure(struct verify_header *hdr, struct vcont *vc)
297{
298 unsigned long long offset;
299
300 offset = vc->io_u->offset;
301 offset += vc->hdr_num * hdr->len;
302 log_err("%.8s: verify failed at file %s offset %llu, length %u\n",
303 vc->name, vc->io_u->file->file_name, offset, hdr->len);
304
305 if (vc->good_crc && vc->bad_crc) {
306 log_err(" Expected CRC: ");
307 hexdump(vc->good_crc, vc->crc_len);
308 log_err(" Received CRC: ");
309 hexdump(vc->bad_crc, vc->crc_len);
310 }
311
312 dump_verify_buffers(hdr, vc);
313}
314
315/*
316 * Return data area 'header_num'
317 */
318static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc)
319{
320 return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(hdr);
321}
322
323static unsigned int hweight8(unsigned int w)
324{
325 unsigned int res = w - ((w >> 1) & 0x55);
326
327 res = (res & 0x33) + ((res >> 2) & 0x33);
328 return (res + (res >> 4)) & 0x0F;
329}
330
331static int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc)
332{
333 struct thread_data *td = vc->td;
334 struct io_u *io_u = vc->io_u;
335 char *buf, *pattern;
336 unsigned int header_size = __hdr_size(td->o.verify);
337 unsigned int len, mod, i;
338
339 pattern = td->o.verify_pattern;
340 buf = (void *) hdr + header_size;
341 len = get_hdr_inc(td, io_u) - header_size;
342 mod = header_size % td->o.verify_pattern_bytes;
343
344 for (i = 0; i < len; i++) {
345 if (buf[i] != pattern[mod]) {
346 unsigned int bits;
347
348 bits = hweight8(buf[i] ^ pattern[mod]);
349 log_err("fio: got pattern %x, wanted %x. Bad bits %d\n",
350 buf[i], pattern[mod], bits);
351 log_err("fio: bad pattern block offset %u\n", i);
352 dump_verify_buffers(hdr, vc);
353 return EILSEQ;
354 }
355 mod++;
356 if (mod == td->o.verify_pattern_bytes)
357 mod = 0;
358 }
359
360 return 0;
361}
362
363static int verify_io_u_meta(struct verify_header *hdr, struct vcont *vc)
364{
365 struct thread_data *td = vc->td;
366 struct vhdr_meta *vh = hdr_priv(hdr);
367 struct io_u *io_u = vc->io_u;
368 int ret = EILSEQ;
369
370 dprint(FD_VERIFY, "meta verify io_u %p, len %u\n", io_u, hdr->len);
371
372 if (vh->offset == io_u->offset + vc->hdr_num * td->o.verify_interval)
373 ret = 0;
374
375 if (td->o.verify_pattern_bytes)
376 ret |= verify_io_u_pattern(hdr, vc);
377
378 if (!ret)
379 return 0;
380
381 vc->name = "meta";
382 log_verify_failure(hdr, vc);
383 return ret;
384}
385
386static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc)
387{
388 void *p = io_u_verify_off(hdr, vc);
389 struct vhdr_sha512 *vh = hdr_priv(hdr);
390 uint8_t sha512[128];
391 struct sha512_ctx sha512_ctx = {
392 .buf = sha512,
393 };
394
395 dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len);
396
397 sha512_init(&sha512_ctx);
398 sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr));
399
400 if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512)))
401 return 0;
402
403 vc->name = "sha512";
404 vc->good_crc = vh->sha512;
405 vc->bad_crc = sha512_ctx.buf;
406 vc->crc_len = sizeof(vh->sha512);
407 log_verify_failure(hdr, vc);
408 return EILSEQ;
409}
410
411static int verify_io_u_sha256(struct verify_header *hdr, struct vcont *vc)
412{
413 void *p = io_u_verify_off(hdr, vc);
414 struct vhdr_sha256 *vh = hdr_priv(hdr);
415 uint8_t sha256[64];
416 struct sha256_ctx sha256_ctx = {
417 .buf = sha256,
418 };
419
420 dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len);
421
422 sha256_init(&sha256_ctx);
423 sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr));
424
425 if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256)))
426 return 0;
427
428 vc->name = "sha256";
429 vc->good_crc = vh->sha256;
430 vc->bad_crc = sha256_ctx.buf;
431 vc->crc_len = sizeof(vh->sha256);
432 log_verify_failure(hdr, vc);
433 return EILSEQ;
434}
435
436static int verify_io_u_sha1(struct verify_header *hdr, struct vcont *vc)
437{
438 void *p = io_u_verify_off(hdr, vc);
439 struct vhdr_sha1 *vh = hdr_priv(hdr);
440 uint32_t sha1[5];
441 struct sha1_ctx sha1_ctx = {
442 .H = sha1,
443 };
444
445 dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len);
446
447 sha1_init(&sha1_ctx);
448 sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr));
449
450 if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1)))
451 return 0;
452
453 vc->name = "sha1";
454 vc->good_crc = vh->sha1;
455 vc->bad_crc = sha1_ctx.H;
456 vc->crc_len = sizeof(vh->sha1);
457 log_verify_failure(hdr, vc);
458 return EILSEQ;
459}
460
461static int verify_io_u_crc7(struct verify_header *hdr, struct vcont *vc)
462{
463 void *p = io_u_verify_off(hdr, vc);
464 struct vhdr_crc7 *vh = hdr_priv(hdr);
465 unsigned char c;
466
467 dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len);
468
469 c = crc7(p, hdr->len - hdr_size(hdr));
470
471 if (c == vh->crc7)
472 return 0;
473
474 vc->name = "crc7";
475 vc->good_crc = &vh->crc7;
476 vc->bad_crc = &c;
477 vc->crc_len = 1;
478 log_verify_failure(hdr, vc);
479 return EILSEQ;
480}
481
482static int verify_io_u_crc16(struct verify_header *hdr, struct vcont *vc)
483{
484 void *p = io_u_verify_off(hdr, vc);
485 struct vhdr_crc16 *vh = hdr_priv(hdr);
486 unsigned short c;
487
488 dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len);
489
490 c = crc16(p, hdr->len - hdr_size(hdr));
491
492 if (c == vh->crc16)
493 return 0;
494
495 vc->name = "crc16";
496 vc->good_crc = &vh->crc16;
497 vc->bad_crc = &c;
498 vc->crc_len = 2;
499 log_verify_failure(hdr, vc);
500 return EILSEQ;
501}
502
503static int verify_io_u_crc64(struct verify_header *hdr, struct vcont *vc)
504{
505 void *p = io_u_verify_off(hdr, vc);
506 struct vhdr_crc64 *vh = hdr_priv(hdr);
507 unsigned long long c;
508
509 dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len);
510
511 c = crc64(p, hdr->len - hdr_size(hdr));
512
513 if (c == vh->crc64)
514 return 0;
515
516 vc->name = "crc64";
517 vc->good_crc = &vh->crc64;
518 vc->bad_crc = &c;
519 vc->crc_len = 8;
520 log_verify_failure(hdr, vc);
521 return EILSEQ;
522}
523
524static int verify_io_u_crc32(struct verify_header *hdr, struct vcont *vc)
525{
526 void *p = io_u_verify_off(hdr, vc);
527 struct vhdr_crc32 *vh = hdr_priv(hdr);
528 uint32_t c;
529
530 dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len);
531
532 c = crc32(p, hdr->len - hdr_size(hdr));
533
534 if (c == vh->crc32)
535 return 0;
536
537 vc->name = "crc32";
538 vc->good_crc = &vh->crc32;
539 vc->bad_crc = &c;
540 vc->crc_len = 4;
541 log_verify_failure(hdr, vc);
542 return EILSEQ;
543}
544
545static int verify_io_u_crc32c(struct verify_header *hdr, struct vcont *vc)
546{
547 void *p = io_u_verify_off(hdr, vc);
548 struct vhdr_crc32 *vh = hdr_priv(hdr);
549 uint32_t c;
550
551 dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len);
552
553 if (hdr->verify_type == VERIFY_CRC32C_INTEL)
554 c = crc32c_intel(p, hdr->len - hdr_size(hdr));
555 else
556 c = crc32c(p, hdr->len - hdr_size(hdr));
557
558 if (c == vh->crc32)
559 return 0;
560
561 vc->name = "crc32c";
562 vc->good_crc = &vh->crc32;
563 vc->bad_crc = &c;
564 vc->crc_len = 4;
565 log_verify_failure(hdr, vc);
566 return EILSEQ;
567}
568
569static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc)
570{
571 void *p = io_u_verify_off(hdr, vc);
572 struct vhdr_md5 *vh = hdr_priv(hdr);
573 uint32_t hash[MD5_HASH_WORDS];
574 struct md5_ctx md5_ctx = {
575 .hash = hash,
576 };
577
578 dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len);
579
580 md5_init(&md5_ctx);
581 md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr));
582
583 if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash)))
584 return 0;
585
586 vc->name = "md5";
587 vc->good_crc = vh->md5_digest;
588 vc->bad_crc = md5_ctx.hash;
589 vc->crc_len = sizeof(hash);
590 log_verify_failure(hdr, vc);
591 return EILSEQ;
592}
593
594/*
595 * Push IO verification to a separate thread
596 */
597int verify_io_u_async(struct thread_data *td, struct io_u *io_u)
598{
599 if (io_u->file)
600 put_file_log(td, io_u->file);
601
602 io_u->file = NULL;
603
604 pthread_mutex_lock(&td->io_u_lock);
605
606 if (io_u->flags & IO_U_F_IN_CUR_DEPTH) {
607 td->cur_depth--;
608 io_u->flags &= ~IO_U_F_IN_CUR_DEPTH;
609 }
610 flist_del(&io_u->list);
611 flist_add_tail(&io_u->list, &td->verify_list);
612 io_u->flags |= IO_U_F_FREE_DEF;
613 pthread_mutex_unlock(&td->io_u_lock);
614
615 pthread_cond_signal(&td->verify_cond);
616 return 0;
617}
618
619static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u)
620{
621 static char zero_buf[1024];
622 unsigned int this_len, len;
623 int ret = 0;
624 void *p;
625
626 if (!td->o.trim_zero)
627 return 0;
628
629 len = io_u->buflen;
630 p = io_u->buf;
631 do {
632 this_len = sizeof(zero_buf);
633 if (this_len > len)
634 this_len = len;
635 if (memcmp(p, zero_buf, this_len)) {
636 ret = EILSEQ;
637 break;
638 }
639 len -= this_len;
640 p += this_len;
641 } while (len);
642
643 if (!ret)
644 return 0;
645
646 log_err("trim: verify failed at file %s offset %llu, length %lu"
647 ", block offset %lu\n",
648 io_u->file->file_name, io_u->offset, io_u->buflen,
649 (unsigned long) (p - io_u->buf));
650 return ret;
651}
652
653int verify_io_u(struct thread_data *td, struct io_u *io_u)
654{
655 struct verify_header *hdr;
656 unsigned int header_size, hdr_inc, hdr_num = 0;
657 void *p;
658 int ret;
659
660 if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
661 return 0;
662 if (io_u->flags & IO_U_F_TRIMMED) {
663 ret = verify_trimmed_io_u(td, io_u);
664 goto done;
665 }
666
667 hdr_inc = get_hdr_inc(td, io_u);
668
669 ret = 0;
670 for (p = io_u->buf; p < io_u->buf + io_u->buflen;
671 p += hdr_inc, hdr_num++) {
672 struct vcont vc = {
673 .io_u = io_u,
674 .hdr_num = hdr_num,
675 .td = td,
676 };
677
678 if (ret && td->o.verify_fatal)
679 break;
680
681 header_size = __hdr_size(td->o.verify);
682 if (td->o.verify_offset)
683 memswp(p, p + td->o.verify_offset, header_size);
684 hdr = p;
685
686 if (hdr->fio_magic != FIO_HDR_MAGIC) {
687 log_err("verify: bad magic header %x, wanted %x at file %s offset %llu, length %u\n",
688 hdr->fio_magic, FIO_HDR_MAGIC,
689 io_u->file->file_name,
690 io_u->offset + hdr_num * hdr->len, hdr->len);
691 return EILSEQ;
692 }
693
694 switch (hdr->verify_type) {
695 case VERIFY_MD5:
696 ret = verify_io_u_md5(hdr, &vc);
697 break;
698 case VERIFY_CRC64:
699 ret = verify_io_u_crc64(hdr, &vc);
700 break;
701 case VERIFY_CRC32C:
702 case VERIFY_CRC32C_INTEL:
703 ret = verify_io_u_crc32c(hdr, &vc);
704 break;
705 case VERIFY_CRC32:
706 ret = verify_io_u_crc32(hdr, &vc);
707 break;
708 case VERIFY_CRC16:
709 ret = verify_io_u_crc16(hdr, &vc);
710 break;
711 case VERIFY_CRC7:
712 ret = verify_io_u_crc7(hdr, &vc);
713 break;
714 case VERIFY_SHA256:
715 ret = verify_io_u_sha256(hdr, &vc);
716 break;
717 case VERIFY_SHA512:
718 ret = verify_io_u_sha512(hdr, &vc);
719 break;
720 case VERIFY_META:
721 ret = verify_io_u_meta(hdr, &vc);
722 break;
723 case VERIFY_SHA1:
724 ret = verify_io_u_sha1(hdr, &vc);
725 break;
726 case VERIFY_PATTERN:
727 ret = verify_io_u_pattern(hdr, &vc);
728 break;
729 default:
730 log_err("Bad verify type %u\n", hdr->verify_type);
731 ret = EINVAL;
732 }
733 }
734
735done:
736 if (ret && td->o.verify_fatal)
737 td->terminate = 1;
738
739 return ret;
740}
741
742static void fill_meta(struct verify_header *hdr, struct thread_data *td,
743 struct io_u *io_u, unsigned int header_num)
744{
745 struct vhdr_meta *vh = hdr_priv(hdr);
746
747 vh->thread = td->thread_number;
748
749 vh->time_sec = io_u->start_time.tv_sec;
750 vh->time_usec = io_u->start_time.tv_usec;
751
752 vh->numberio = td->io_issues[DDIR_WRITE];
753
754 vh->offset = io_u->offset + header_num * td->o.verify_interval;
755}
756
757static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len)
758{
759 struct vhdr_sha512 *vh = hdr_priv(hdr);
760 struct sha512_ctx sha512_ctx = {
761 .buf = vh->sha512,
762 };
763
764 sha512_init(&sha512_ctx);
765 sha512_update(&sha512_ctx, p, len);
766}
767
768static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len)
769{
770 struct vhdr_sha256 *vh = hdr_priv(hdr);
771 struct sha256_ctx sha256_ctx = {
772 .buf = vh->sha256,
773 };
774
775 sha256_init(&sha256_ctx);
776 sha256_update(&sha256_ctx, p, len);
777}
778
779static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len)
780{
781 struct vhdr_sha1 *vh = hdr_priv(hdr);
782 struct sha1_ctx sha1_ctx = {
783 .H = vh->sha1,
784 };
785
786 sha1_init(&sha1_ctx);
787 sha1_update(&sha1_ctx, p, len);
788}
789
790static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
791{
792 struct vhdr_crc7 *vh = hdr_priv(hdr);
793
794 vh->crc7 = crc7(p, len);
795}
796
797static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
798{
799 struct vhdr_crc16 *vh = hdr_priv(hdr);
800
801 vh->crc16 = crc16(p, len);
802}
803
804static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
805{
806 struct vhdr_crc32 *vh = hdr_priv(hdr);
807
808 vh->crc32 = crc32(p, len);
809}
810
811static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len)
812{
813 struct vhdr_crc32 *vh = hdr_priv(hdr);
814
815 if (hdr->verify_type == VERIFY_CRC32C_INTEL)
816 vh->crc32 = crc32c_intel(p, len);
817 else
818 vh->crc32 = crc32c(p, len);
819}
820
821static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
822{
823 struct vhdr_crc64 *vh = hdr_priv(hdr);
824
825 vh->crc64 = crc64(p, len);
826}
827
828static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
829{
830 struct vhdr_md5 *vh = hdr_priv(hdr);
831 struct md5_ctx md5_ctx = {
832 .hash = (uint32_t *) vh->md5_digest,
833 };
834
835 md5_init(&md5_ctx);
836 md5_update(&md5_ctx, p, len);
837}
838
839static void populate_hdr(struct thread_data *td, struct io_u *io_u,
840 struct verify_header *hdr, unsigned int header_num,
841 unsigned int header_len)
842{
843 unsigned int data_len;
844 void *data, *p;
845
846 p = (void *) hdr;
847
848 hdr->fio_magic = FIO_HDR_MAGIC;
849 hdr->len = header_len;
850 hdr->verify_type = td->o.verify;
851 hdr->rand_seed = io_u->rand_seed;
852 data_len = header_len - hdr_size(hdr);
853
854 data = p + hdr_size(hdr);
855 switch (td->o.verify) {
856 case VERIFY_MD5:
857 dprint(FD_VERIFY, "fill md5 io_u %p, len %u\n",
858 io_u, hdr->len);
859 fill_md5(hdr, data, data_len);
860 break;
861 case VERIFY_CRC64:
862 dprint(FD_VERIFY, "fill crc64 io_u %p, len %u\n",
863 io_u, hdr->len);
864 fill_crc64(hdr, data, data_len);
865 break;
866 case VERIFY_CRC32C:
867 case VERIFY_CRC32C_INTEL:
868 dprint(FD_VERIFY, "fill crc32c io_u %p, len %u\n",
869 io_u, hdr->len);
870 fill_crc32c(hdr, data, data_len);
871 break;
872 case VERIFY_CRC32:
873 dprint(FD_VERIFY, "fill crc32 io_u %p, len %u\n",
874 io_u, hdr->len);
875 fill_crc32(hdr, data, data_len);
876 break;
877 case VERIFY_CRC16:
878 dprint(FD_VERIFY, "fill crc16 io_u %p, len %u\n",
879 io_u, hdr->len);
880 fill_crc16(hdr, data, data_len);
881 break;
882 case VERIFY_CRC7:
883 dprint(FD_VERIFY, "fill crc7 io_u %p, len %u\n",
884 io_u, hdr->len);
885 fill_crc7(hdr, data, data_len);
886 break;
887 case VERIFY_SHA256:
888 dprint(FD_VERIFY, "fill sha256 io_u %p, len %u\n",
889 io_u, hdr->len);
890 fill_sha256(hdr, data, data_len);
891 break;
892 case VERIFY_SHA512:
893 dprint(FD_VERIFY, "fill sha512 io_u %p, len %u\n",
894 io_u, hdr->len);
895 fill_sha512(hdr, data, data_len);
896 break;
897 case VERIFY_META:
898 dprint(FD_VERIFY, "fill meta io_u %p, len %u\n",
899 io_u, hdr->len);
900 fill_meta(hdr, td, io_u, header_num);
901 break;
902 case VERIFY_SHA1:
903 dprint(FD_VERIFY, "fill sha1 io_u %p, len %u\n",
904 io_u, hdr->len);
905 fill_sha1(hdr, data, data_len);
906 break;
907 case VERIFY_PATTERN:
908 /* nothing to do here */
909 break;
910 default:
911 log_err("fio: bad verify type: %d\n", td->o.verify);
912 assert(0);
913 }
914 if (td->o.verify_offset)
915 memswp(p, p + td->o.verify_offset, hdr_size(hdr));
916}
917
918/*
919 * fill body of io_u->buf with random data and add a header with the
920 * checksum of choice
921 */
922void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
923{
924 if (td->o.verify == VERIFY_NULL)
925 return;
926
927 fill_pattern_headers(td, io_u, 0, 0);
928}
929
930int get_next_verify(struct thread_data *td, struct io_u *io_u)
931{
932 struct io_piece *ipo = NULL;
933
934 /*
935 * this io_u is from a requeue, we already filled the offsets
936 */
937 if (io_u->file)
938 return 0;
939
940 if (!RB_EMPTY_ROOT(&td->io_hist_tree)) {
941 struct rb_node *n = rb_first(&td->io_hist_tree);
942
943 ipo = rb_entry(n, struct io_piece, rb_node);
944 rb_erase(n, &td->io_hist_tree);
945 assert(ipo->flags & IP_F_ONRB);
946 ipo->flags &= ~IP_F_ONRB;
947 } else if (!flist_empty(&td->io_hist_list)) {
948 ipo = flist_entry(td->io_hist_list.next, struct io_piece, list);
949 flist_del(&ipo->list);
950 assert(ipo->flags & IP_F_ONLIST);
951 ipo->flags &= ~IP_F_ONLIST;
952 }
953
954 if (ipo) {
955 td->io_hist_len--;
956
957 io_u->offset = ipo->offset;
958 io_u->buflen = ipo->len;
959 io_u->file = ipo->file;
960
961 if (ipo->flags & IP_F_TRIMMED)
962 io_u->flags |= IO_U_F_TRIMMED;
963
964 if (!fio_file_open(io_u->file)) {
965 int r = td_io_open_file(td, io_u->file);
966
967 if (r) {
968 dprint(FD_VERIFY, "failed file %s open\n",
969 io_u->file->file_name);
970 return 1;
971 }
972 }
973
974 get_file(ipo->file);
975 assert(fio_file_open(io_u->file));
976 io_u->ddir = DDIR_READ;
977 io_u->xfer_buf = io_u->buf;
978 io_u->xfer_buflen = io_u->buflen;
979
980 remove_trim_entry(td, ipo);
981 free(ipo);
982 dprint(FD_VERIFY, "get_next_verify: ret io_u %p\n", io_u);
983 return 0;
984 }
985
986 dprint(FD_VERIFY, "get_next_verify: empty\n");
987 return 1;
988}
989
990static void *verify_async_thread(void *data)
991{
992 struct thread_data *td = data;
993 struct io_u *io_u;
994 int ret = 0;
995
996 if (td->o.verify_cpumask_set &&
997 fio_setaffinity(td->pid, td->o.verify_cpumask)) {
998 log_err("fio: failed setting verify thread affinity\n");
999 goto done;
1000 }
1001
1002 do {
1003 FLIST_HEAD(list);
1004
1005 read_barrier();
1006 if (td->verify_thread_exit)
1007 break;
1008
1009 pthread_mutex_lock(&td->io_u_lock);
1010
1011 while (flist_empty(&td->verify_list) &&
1012 !td->verify_thread_exit) {
1013 ret = pthread_cond_wait(&td->verify_cond,
1014 &td->io_u_lock);
1015 if (ret) {
1016 pthread_mutex_unlock(&td->io_u_lock);
1017 break;
1018 }
1019 }
1020
1021 flist_splice_init(&td->verify_list, &list);
1022 pthread_mutex_unlock(&td->io_u_lock);
1023
1024 if (flist_empty(&list))
1025 continue;
1026
1027 while (!flist_empty(&list)) {
1028 io_u = flist_entry(list.next, struct io_u, list);
1029 flist_del_init(&io_u->list);
1030
1031 ret = verify_io_u(td, io_u);
1032 put_io_u(td, io_u);
1033 if (!ret)
1034 continue;
1035 if (td->o.continue_on_error &&
1036 td_non_fatal_error(ret)) {
1037 update_error_count(td, ret);
1038 td_clear_error(td);
1039 ret = 0;
1040 }
1041 }
1042 } while (!ret);
1043
1044 if (ret) {
1045 td_verror(td, ret, "async_verify");
1046 if (td->o.verify_fatal)
1047 td->terminate = 1;
1048 }
1049
1050done:
1051 pthread_mutex_lock(&td->io_u_lock);
1052 td->nr_verify_threads--;
1053 pthread_mutex_unlock(&td->io_u_lock);
1054
1055 pthread_cond_signal(&td->free_cond);
1056 return NULL;
1057}
1058
1059int verify_async_init(struct thread_data *td)
1060{
1061 int i, ret;
1062 pthread_attr_t attr;
1063
1064 pthread_attr_init(&attr);
1065 pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
1066
1067 td->verify_thread_exit = 0;
1068
1069 td->verify_threads = malloc(sizeof(pthread_t) * td->o.verify_async);
1070 for (i = 0; i < td->o.verify_async; i++) {
1071 ret = pthread_create(&td->verify_threads[i], &attr,
1072 verify_async_thread, td);
1073 if (ret) {
1074 log_err("fio: async verify creation failed: %s\n",
1075 strerror(ret));
1076 break;
1077 }
1078 ret = pthread_detach(td->verify_threads[i]);
1079 if (ret) {
1080 log_err("fio: async verify thread detach failed: %s\n",
1081 strerror(ret));
1082 break;
1083 }
1084 td->nr_verify_threads++;
1085 }
1086
1087 pthread_attr_destroy(&attr);
1088
1089 if (i != td->o.verify_async) {
1090 log_err("fio: only %d verify threads started, exiting\n", i);
1091 td->verify_thread_exit = 1;
1092 write_barrier();
1093 pthread_cond_broadcast(&td->verify_cond);
1094 return 1;
1095 }
1096
1097 return 0;
1098}
1099
1100void verify_async_exit(struct thread_data *td)
1101{
1102 td->verify_thread_exit = 1;
1103 write_barrier();
1104 pthread_cond_broadcast(&td->verify_cond);
1105
1106 pthread_mutex_lock(&td->io_u_lock);
1107
1108 while (td->nr_verify_threads)
1109 pthread_cond_wait(&td->free_cond, &td->io_u_lock);
1110
1111 pthread_mutex_unlock(&td->io_u_lock);
1112 free(td->verify_threads);
1113 td->verify_threads = NULL;
1114}
fio - Flexible IO Tester