X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=verify.c;h=0d38c0e92e77444d49e3d1906a37c210325c9bb6;hp=eb8da58e3f2bdfdabc905886b709f02eaab20919;hb=572cfb3f4d2cbf22291b395f2bb41facdc17ce86;hpb=cfbcd0dc2fcbf0f9bfe92ff8f4ab17f21e46d21e diff --git a/verify.c b/verify.c index eb8da58e..0d38c0e9 100644 --- a/verify.c +++ b/verify.c @@ -10,9 +10,9 @@ #include "fio.h" #include "verify.h" -#include "smalloc.h" #include "trim.h" #include "lib/rand.h" +#include "lib/hweight.h" #include "crc/md5.h" #include "crc/crc64.h" @@ -36,7 +36,7 @@ void fill_pattern(struct thread_data *td, void *p, unsigned int len, struct io_u if (use_seed) __fill_random_buf(p, len, seed); else - io_u->rand_seed = fill_random_buf(p, len); + io_u->rand_seed = fill_random_buf(&td->buf_state, p, len); break; case 1: if (io_u->buf_filled_len >= len) { @@ -56,6 +56,7 @@ void fill_pattern(struct thread_data *td, void *p, unsigned int len, struct io_u td->o.verify_pattern_bytes, len); return; } + dprint(FD_VERIFY, "fill verify pattern b=%d len=%u\n", td->o.verify_pattern_bytes, len); @@ -77,7 +78,7 @@ static unsigned int get_hdr_inc(struct thread_data *td, struct io_u *io_u) unsigned int hdr_inc; hdr_inc = io_u->buflen; - if (td->o.verify_interval) + if (td->o.verify_interval && td->o.verify_interval <= io_u->buflen) hdr_inc = td->o.verify_interval; return hdr_inc; @@ -123,7 +124,7 @@ static void hexdump(void *buffer, int len) } /* - * Prepare for seperation of verify_header and checksum header + * Prepare for separation of verify_header and checksum header */ static inline unsigned int __hdr_size(int verify_type) { @@ -163,6 +164,9 @@ static inline unsigned int __hdr_size(int verify_type) case VERIFY_SHA1: len = sizeof(struct vhdr_sha1); break; + case VERIFY_PATTERN: + len = 0; + break; default: log_err("fio: unknown verify header!\n"); assert(0); @@ -250,6 +254,9 @@ static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc) struct io_u dummy; void *buf; + if (!td->o.verify_dump) + return; + /* * Dump the contents we just read off disk */ @@ -266,6 +273,7 @@ static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc) dummy.buf = buf; dummy.rand_seed = hdr->rand_seed; dummy.buf_filled_len = 0; + dummy.buflen = io_u->buflen; fill_pattern_headers(td, &dummy, hdr->rand_seed, 1); @@ -301,20 +309,72 @@ static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc) return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(hdr); } -static int verify_io_u_meta(struct verify_header *hdr, struct thread_data *td, - struct vcont *vc) +static int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc) { + struct thread_data *td = vc->td; + struct io_u *io_u = vc->io_u; + char *buf, *pattern; + unsigned int header_size = __hdr_size(td->o.verify); + unsigned int len, mod, i, size, pattern_size; + + pattern = td->o.verify_pattern; + pattern_size = td->o.verify_pattern_bytes; + if (pattern_size <= 1) + pattern_size = MAX_PATTERN_SIZE; + buf = (void *) hdr + header_size; + len = get_hdr_inc(td, io_u) - header_size; + mod = header_size % pattern_size; + + for (i = 0; i < len; i += size) { + size = pattern_size - mod; + if (size > (len - i)) + size = len - i; + if (memcmp(buf + i, pattern + mod, size)) + /* Let the slow compare find the first mismatch byte. */ + break; + mod = 0; + } + + for (; i < len; i++) { + if (buf[i] != pattern[mod]) { + unsigned int bits; + + bits = hweight8(buf[i] ^ pattern[mod]); + log_err("fio: got pattern %x, wanted %x. Bad bits %d\n", + buf[i], pattern[mod], bits); + log_err("fio: bad pattern block offset %u\n", i); + dump_verify_buffers(hdr, vc); + return EILSEQ; + } + mod++; + if (mod == td->o.verify_pattern_bytes) + mod = 0; + } + + return 0; +} + +static int verify_io_u_meta(struct verify_header *hdr, struct vcont *vc) +{ + struct thread_data *td = vc->td; struct vhdr_meta *vh = hdr_priv(hdr); struct io_u *io_u = vc->io_u; + int ret = EILSEQ; dprint(FD_VERIFY, "meta verify io_u %p, len %u\n", io_u, hdr->len); if (vh->offset == io_u->offset + vc->hdr_num * td->o.verify_interval) + ret = 0; + + if (td->o.verify_pattern_bytes) + ret |= verify_io_u_pattern(hdr, vc); + + if (!ret) return 0; vc->name = "meta"; log_verify_failure(hdr, vc); - return EILSEQ; + return ret; } static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc) @@ -322,14 +382,14 @@ static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc) void *p = io_u_verify_off(hdr, vc); struct vhdr_sha512 *vh = hdr_priv(hdr); uint8_t sha512[128]; - struct sha512_ctx sha512_ctx = { + struct fio_sha512_ctx sha512_ctx = { .buf = sha512, }; dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len); - sha512_init(&sha512_ctx); - sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr)); + fio_sha512_init(&sha512_ctx); + fio_sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr)); if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512))) return 0; @@ -347,14 +407,14 @@ static int verify_io_u_sha256(struct verify_header *hdr, struct vcont *vc) void *p = io_u_verify_off(hdr, vc); struct vhdr_sha256 *vh = hdr_priv(hdr); uint8_t sha256[64]; - struct sha256_ctx sha256_ctx = { + struct fio_sha256_ctx sha256_ctx = { .buf = sha256, }; dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len); - sha256_init(&sha256_ctx); - sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr)); + fio_sha256_init(&sha256_ctx); + fio_sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr)); if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256))) return 0; @@ -372,14 +432,14 @@ static int verify_io_u_sha1(struct verify_header *hdr, struct vcont *vc) void *p = io_u_verify_off(hdr, vc); struct vhdr_sha1 *vh = hdr_priv(hdr); uint32_t sha1[5]; - struct sha1_ctx sha1_ctx = { + struct fio_sha1_ctx sha1_ctx = { .H = sha1, }; dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len); - sha1_init(&sha1_ctx); - sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr)); + fio_sha1_init(&sha1_ctx); + fio_sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr)); if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1))) return 0; @@ -400,7 +460,7 @@ static int verify_io_u_crc7(struct verify_header *hdr, struct vcont *vc) dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len); - c = crc7(p, hdr->len - hdr_size(hdr)); + c = fio_crc7(p, hdr->len - hdr_size(hdr)); if (c == vh->crc7) return 0; @@ -421,7 +481,7 @@ static int verify_io_u_crc16(struct verify_header *hdr, struct vcont *vc) dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len); - c = crc16(p, hdr->len - hdr_size(hdr)); + c = fio_crc16(p, hdr->len - hdr_size(hdr)); if (c == vh->crc16) return 0; @@ -442,7 +502,7 @@ static int verify_io_u_crc64(struct verify_header *hdr, struct vcont *vc) dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len); - c = crc64(p, hdr->len - hdr_size(hdr)); + c = fio_crc64(p, hdr->len - hdr_size(hdr)); if (c == vh->crc64) return 0; @@ -463,7 +523,7 @@ static int verify_io_u_crc32(struct verify_header *hdr, struct vcont *vc) dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len); - c = crc32(p, hdr->len - hdr_size(hdr)); + c = fio_crc32(p, hdr->len - hdr_size(hdr)); if (c == vh->crc32) return 0; @@ -484,10 +544,7 @@ static int verify_io_u_crc32c(struct verify_header *hdr, struct vcont *vc) dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len); - if (hdr->verify_type == VERIFY_CRC32C_INTEL) - c = crc32c_intel(p, hdr->len - hdr_size(hdr)); - else - c = crc32c(p, hdr->len - hdr_size(hdr)); + c = fio_crc32c(p, hdr->len - hdr_size(hdr)); if (c == vh->crc32) return 0; @@ -505,14 +562,14 @@ static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc) void *p = io_u_verify_off(hdr, vc); struct vhdr_md5 *vh = hdr_priv(hdr); uint32_t hash[MD5_HASH_WORDS]; - struct md5_ctx md5_ctx = { + struct fio_md5_ctx md5_ctx = { .hash = hash, }; dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len); - md5_init(&md5_ctx); - md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr)); + fio_md5_init(&md5_ctx); + fio_md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr)); if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash))) return 0; @@ -525,46 +582,6 @@ static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc) return EILSEQ; } -static unsigned int hweight8(unsigned int w) -{ - unsigned int res = w - ((w >> 1) & 0x55); - - res = (res & 0x33) + ((res >> 2) & 0x33); - return (res + (res >> 4)) & 0x0F; -} - -int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc) -{ - struct thread_data *td = vc->td; - struct io_u *io_u = vc->io_u; - char *pattern = td->o.verify_pattern; - unsigned long pattern_size = td->o.verify_pattern_bytes; - unsigned int hdr_size = __hdr_size(td->o.verify); - char *buf = (void *) hdr + hdr_size; - unsigned int hdr_inc = get_hdr_inc(td, io_u); - unsigned int len = hdr_inc - hdr_size; - unsigned int mod = hdr_size % pattern_size; - unsigned int i; - - for (i = 0; i < len; i++) { - if (buf[i] != pattern[mod]) { - unsigned int bits; - - bits = hweight8(buf[i] ^ pattern[mod]); - log_err("fio: got pattern %x, wanted %x. Bad bits %d\n", - buf[i], pattern[mod], bits); - log_err("fio: bad pattern block offset %u\n", i); - dump_verify_buffers(hdr, vc); - return EILSEQ; - } - mod++; - if (mod == pattern_size) - mod = 0; - } - - return 0; -} - /* * Push IO verification to a separate thread */ @@ -573,16 +590,13 @@ int verify_io_u_async(struct thread_data *td, struct io_u *io_u) if (io_u->file) put_file_log(td, io_u->file); - io_u->file = NULL; - pthread_mutex_lock(&td->io_u_lock); - + if (io_u->flags & IO_U_F_IN_CUR_DEPTH) { td->cur_depth--; io_u->flags &= ~IO_U_F_IN_CUR_DEPTH; } - flist_del(&io_u->list); - flist_add_tail(&io_u->list, &td->verify_list); + flist_add_tail(&io_u->verify_list, &td->verify_list); io_u->flags |= IO_U_F_FREE_DEF; pthread_mutex_unlock(&td->io_u_lock); @@ -624,10 +638,30 @@ static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u) return ret; } +static int verify_header(struct io_u *io_u, struct verify_header *hdr) +{ + void *p = hdr; + uint32_t crc; + + if (hdr->magic != FIO_HDR_MAGIC) + return 0; + if (hdr->len > io_u->buflen) { + log_err("fio: verify header exceeds buffer length (%u > %lu)\n", hdr->len, io_u->buflen); + return 0; + } + + crc = fio_crc32c(p, offsetof(struct verify_header, crc32)); + if (crc == hdr->crc32) + return 1; + + log_err("fio: verify header crc %x, calculated %x\n", hdr->crc32, crc); + return 0; +} + int verify_io_u(struct thread_data *td, struct io_u *io_u) { struct verify_header *hdr; - unsigned int hdr_size, hdr_inc, hdr_num = 0; + unsigned int header_size, hdr_inc, hdr_num = 0; void *p; int ret; @@ -648,43 +682,31 @@ int verify_io_u(struct thread_data *td, struct io_u *io_u) .hdr_num = hdr_num, .td = td, }; + unsigned int verify_type; if (ret && td->o.verify_fatal) break; - hdr_size = __hdr_size(td->o.verify); + header_size = __hdr_size(td->o.verify); if (td->o.verify_offset) - memswp(p, p + td->o.verify_offset, hdr_size); + memswp(p, p + td->o.verify_offset, header_size); hdr = p; - if (hdr->fio_magic != FIO_HDR_MAGIC) { - log_err("verify: bad magic header %x, wanted %x at file %s offset %llu, length %u\n", - hdr->fio_magic, FIO_HDR_MAGIC, + if (!verify_header(io_u, hdr)) { + log_err("verify: bad magic header %x, wanted %x at " + "file %s offset %llu, length %u\n", + hdr->magic, FIO_HDR_MAGIC, io_u->file->file_name, io_u->offset + hdr_num * hdr->len, hdr->len); return EILSEQ; } - if (td->o.verify_pattern_bytes) { - dprint(FD_VERIFY, "pattern verify io_u %p, len %u\n", - io_u, hdr->len); - ret = verify_io_u_pattern(hdr, &vc); - if (ret) { - log_err("pattern: verify failed at file %s offset %llu, length %u\n", - io_u->file->file_name, - io_u->offset + hdr_num * hdr->len, - hdr->len); - } - - /* - * Also verify the meta data, if applicable - */ - if (hdr->verify_type == VERIFY_META) - ret |= verify_io_u_meta(hdr, td, &vc); - continue; - } + if (td->o.verify != VERIFY_NONE) + verify_type = td->o.verify; + else + verify_type = hdr->verify_type; - switch (hdr->verify_type) { + switch (verify_type) { case VERIFY_MD5: ret = verify_io_u_md5(hdr, &vc); break; @@ -711,15 +733,22 @@ int verify_io_u(struct thread_data *td, struct io_u *io_u) ret = verify_io_u_sha512(hdr, &vc); break; case VERIFY_META: - ret = verify_io_u_meta(hdr, td, &vc); + ret = verify_io_u_meta(hdr, &vc); break; case VERIFY_SHA1: ret = verify_io_u_sha1(hdr, &vc); break; + case VERIFY_PATTERN: + ret = verify_io_u_pattern(hdr, &vc); + break; default: log_err("Bad verify type %u\n", hdr->verify_type); ret = EINVAL; } + + if (ret && verify_type != hdr->verify_type) + log_err("fio: verify type mismatch (%u media, %u given)\n", + hdr->verify_type, verify_type); } done: @@ -747,83 +776,80 @@ static void fill_meta(struct verify_header *hdr, struct thread_data *td, static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len) { struct vhdr_sha512 *vh = hdr_priv(hdr); - struct sha512_ctx sha512_ctx = { + struct fio_sha512_ctx sha512_ctx = { .buf = vh->sha512, }; - sha512_init(&sha512_ctx); - sha512_update(&sha512_ctx, p, len); + fio_sha512_init(&sha512_ctx); + fio_sha512_update(&sha512_ctx, p, len); } static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len) { struct vhdr_sha256 *vh = hdr_priv(hdr); - struct sha256_ctx sha256_ctx = { + struct fio_sha256_ctx sha256_ctx = { .buf = vh->sha256, }; - sha256_init(&sha256_ctx); - sha256_update(&sha256_ctx, p, len); + fio_sha256_init(&sha256_ctx); + fio_sha256_update(&sha256_ctx, p, len); } static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len) { struct vhdr_sha1 *vh = hdr_priv(hdr); - struct sha1_ctx sha1_ctx = { + struct fio_sha1_ctx sha1_ctx = { .H = vh->sha1, }; - sha1_init(&sha1_ctx); - sha1_update(&sha1_ctx, p, len); + fio_sha1_init(&sha1_ctx); + fio_sha1_update(&sha1_ctx, p, len); } static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len) { struct vhdr_crc7 *vh = hdr_priv(hdr); - vh->crc7 = crc7(p, len); + vh->crc7 = fio_crc7(p, len); } static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len) { struct vhdr_crc16 *vh = hdr_priv(hdr); - vh->crc16 = crc16(p, len); + vh->crc16 = fio_crc16(p, len); } static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len) { struct vhdr_crc32 *vh = hdr_priv(hdr); - vh->crc32 = crc32(p, len); + vh->crc32 = fio_crc32(p, len); } static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len) { struct vhdr_crc32 *vh = hdr_priv(hdr); - if (hdr->verify_type == VERIFY_CRC32C_INTEL) - vh->crc32 = crc32c_intel(p, len); - else - vh->crc32 = crc32c(p, len); + vh->crc32 = fio_crc32c(p, len); } static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len) { struct vhdr_crc64 *vh = hdr_priv(hdr); - vh->crc64 = crc64(p, len); + vh->crc64 = fio_crc64(p, len); } static void fill_md5(struct verify_header *hdr, void *p, unsigned int len) { struct vhdr_md5 *vh = hdr_priv(hdr); - struct md5_ctx md5_ctx = { + struct fio_md5_ctx md5_ctx = { .hash = (uint32_t *) vh->md5_digest, }; - md5_init(&md5_ctx); - md5_update(&md5_ctx, p, len); + fio_md5_init(&md5_ctx); + fio_md5_update(&md5_ctx, p, len); } static void populate_hdr(struct thread_data *td, struct io_u *io_u, @@ -835,10 +861,12 @@ static void populate_hdr(struct thread_data *td, struct io_u *io_u, p = (void *) hdr; - hdr->fio_magic = FIO_HDR_MAGIC; - hdr->len = header_len; + hdr->magic = FIO_HDR_MAGIC; hdr->verify_type = td->o.verify; + hdr->len = header_len; hdr->rand_seed = io_u->rand_seed; + hdr->crc32 = fio_crc32c(p, offsetof(struct verify_header, crc32)); + data_len = header_len - hdr_size(hdr); data = p + hdr_size(hdr); @@ -894,6 +922,9 @@ static void populate_hdr(struct thread_data *td, struct io_u *io_u, io_u, hdr->len); fill_sha1(hdr, data, data_len); break; + case VERIFY_PATTERN: + /* nothing to do here */ + break; default: log_err("fio: bad verify type: %d\n", td->o.verify); assert(0); @@ -944,6 +975,7 @@ int get_next_verify(struct thread_data *td, struct io_u *io_u) io_u->offset = ipo->offset; io_u->buflen = ipo->len; io_u->file = ipo->file; + io_u->flags |= IO_U_F_VER_LIST; if (ipo->flags & IP_F_TRIMMED) io_u->flags |= IO_U_F_TRIMMED; @@ -974,6 +1006,14 @@ int get_next_verify(struct thread_data *td, struct io_u *io_u) return 1; } +void fio_verify_init(struct thread_data *td) +{ + if (td->o.verify == VERIFY_CRC32C_INTEL || + td->o.verify == VERIFY_CRC32C) { + crc32c_intel_probe(); + } +} + static void *verify_async_thread(void *data) { struct thread_data *td = data; @@ -1012,15 +1052,14 @@ static void *verify_async_thread(void *data) continue; while (!flist_empty(&list)) { - io_u = flist_entry(list.next, struct io_u, list); - flist_del_init(&io_u->list); + io_u = flist_entry(list.next, struct io_u, verify_list); + flist_del(&io_u->verify_list); ret = verify_io_u(td, io_u); put_io_u(td, io_u); if (!ret) continue; - if (td->o.continue_on_error && - td_non_fatal_error(ret)) { + if (td_non_fatal_error(td, ERROR_TYPE_VERIFY_BIT, ret)) { update_error_count(td, ret); td_clear_error(td); ret = 0;