#include "fio.h"
-static void fill_random_bytes(struct thread_data *td,
- unsigned char *p, unsigned int len)
+static void fill_random_bytes(struct thread_data *td, void *p, unsigned int len)
{
unsigned int todo;
int r;
}
}
+static void fill_pattern(struct thread_data *td, void *p, unsigned int len)
+{
+ switch (td->o.verify_pattern_bytes) {
+ case 0:
+ fill_random_bytes(td, p, len);
+ break;
+ case 1:
+ memset(p, td->o.verify_pattern, len);
+ break;
+ case 2:
+ case 3:
+ case 4: {
+ unsigned int pattern = td->o.verify_pattern;
+ unsigned int i = 0;
+ unsigned char c1, c2, c3, c4;
+ unsigned char *b = p;
+
+ c1 = pattern & 0xff;
+ pattern >>= 8;
+ c2 = pattern & 0xff;
+ pattern >>= 8;
+ c3 = pattern & 0xff;
+ pattern >>= 8;
+ c4 = pattern & 0xff;
+
+ while (i < len) {
+ b[i++] = c1;
+ if (i == len)
+ break;
+ b[i++] = c2;
+ if (td->o.verify_pattern_bytes == 2 || i == len)
+ continue;
+ b[i++] = c3;
+ if (td->o.verify_pattern_bytes == 3 || i == len)
+ continue;
+ b[i++] = c4;
+ }
+ break;
+ }
+ }
+}
+
+static void memswp(void* buf1, void* buf2, unsigned int len)
+{
+ struct verify_header swap;
+
+ memcpy(&swap, buf1, len);
+ memcpy(buf1, buf2, len);
+ memcpy(buf2, &swap, len);
+}
+
static void hexdump(void *buffer, int len)
{
unsigned char *p = buffer;
log_info("\n");
}
+/*
+ * Return data area 'header_num'
+ */
+static inline void *io_u_verify_off(struct verify_header *hdr,
+ struct io_u *io_u,
+ unsigned char header_num)
+{
+ return io_u->buf + sizeof(*hdr) + header_num * hdr->len;
+}
+
static int verify_io_u_crc7(struct verify_header *hdr, struct io_u *io_u,
unsigned char header_num)
{
- unsigned char *p = io_u->buf;
+ void *p = io_u_verify_off(hdr, io_u, header_num);
unsigned char c;
- p += header_num * hdr->len + sizeof(*hdr);
c = crc7(p, hdr->len - sizeof(*hdr));
if (c != hdr->crc7) {
static int verify_io_u_crc16(struct verify_header *hdr, struct io_u *io_u,
unsigned int header_num)
{
- unsigned char *p = io_u->buf;
+ void *p = io_u_verify_off(hdr, io_u, header_num);
unsigned short c;
- p += header_num * hdr->len + sizeof(*hdr);
c = crc16(p, hdr->len - sizeof(*hdr));
if (c != hdr->crc16) {
static int verify_io_u_crc64(struct verify_header *hdr, struct io_u *io_u,
unsigned int header_num)
{
- unsigned char *p = io_u->buf;
+ void *p = io_u_verify_off(hdr, io_u, header_num);
unsigned long long c;
- p += header_num * hdr->len + sizeof(*hdr);
c = crc64(p, hdr->len - sizeof(*hdr));
if (c != hdr->crc64) {
static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u,
unsigned int header_num)
{
- unsigned char *p = io_u->buf;
+ void *p = io_u_verify_off(hdr, io_u, header_num);
unsigned long c;
- p += header_num * hdr->len + sizeof(*hdr);
c = crc32(p, hdr->len - sizeof(*hdr));
if (c != hdr->crc32) {
static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u,
unsigned int header_num)
{
- unsigned char *p = io_u->buf;
+ void *p = io_u_verify_off(hdr, io_u, header_num);
uint32_t hash[MD5_HASH_WORDS];
struct md5_ctx md5_ctx = {
.hash = hash,
};
- p += header_num * hdr->len + sizeof(*hdr);
+ md5_init(&md5_ctx);
md5_update(&md5_ctx, p, hdr->len - sizeof(*hdr));
- if (memcmp(hdr->md5_digest, md5_ctx.hash, sizeof(md5_ctx.hash))) {
+ if (memcmp(hdr->md5_digest, md5_ctx.hash, sizeof(hash))) {
log_err("md5: verify failed at %llu/%u\n",
io_u->offset + header_num * hdr->len,
hdr->len);
int verify_io_u(struct thread_data *td, struct io_u *io_u)
{
- unsigned char *p = (unsigned char*) io_u->buf;
struct verify_header *hdr;
unsigned int hdr_inc, hdr_num = 0;
+ void *p;
int ret;
if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
return 0;
hdr_inc = io_u->buflen;
- if (td->o.header_interval)
- hdr_inc = td->o.header_interval;
+ if (td->o.verify_interval)
+ hdr_inc = td->o.verify_interval;
+
+ for (p = io_u->buf; p < io_u->buf + io_u->buflen; p += hdr_inc) {
+ if (td->o.verify_offset)
+ memswp(p, p + td->o.verify_offset, sizeof(*hdr));
- for (; p < (unsigned char*) io_u->buf + io_u->buflen; p += hdr_inc) {
- hdr = (struct verify_header*) p;
+ hdr = p;
if (hdr->fio_magic != FIO_HDR_MAGIC) {
log_err("Bad verify header %x\n", hdr->fio_magic);
.hash = (uint32_t *) hdr->md5_digest,
};
+ md5_init(&md5_ctx);
md5_update(&md5_ctx, p, len);
}
*/
void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
{
- const unsigned int len = io_u->buflen - sizeof(struct verify_header);
struct verify_header *hdr;
- unsigned char *p = io_u->buf, *data;
- unsigned int data_len;
+ void *p = io_u->buf, *data;
+ unsigned int hdr_inc, data_len;
if (td->o.verify == VERIFY_NULL)
return;
- fill_random_bytes(td, p, len);
+ fill_pattern(td, p, io_u->buflen);
+
+ hdr_inc = io_u->buflen;
+ if (td->o.verify_interval)
+ hdr_inc = td->o.verify_interval;
+ data_len = hdr_inc - sizeof(*hdr);
- for (;p < (unsigned char*) io_u->buf + io_u->buflen; p += hdr->len) {
- hdr = (struct verify_header*) p;
+ for (;p < io_u->buf + io_u->buflen; p += hdr_inc) {
+ hdr = p;
hdr->fio_magic = FIO_HDR_MAGIC;
hdr->verify_type = td->o.verify;
- hdr->len = io_u->buflen;
- if (td->o.header_interval)
- hdr->len = td->o.header_interval;
+ hdr->len = hdr_inc;
data = p + sizeof(*hdr);
- data_len = hdr->len - sizeof(*hdr);
switch (td->o.verify) {
case VERIFY_MD5:
fill_md5(hdr, data, data_len);
log_err("fio: bad verify type: %d\n", td->o.verify);
assert(0);
}
+ if (td->o.verify_offset)
+ memswp(p, p + td->o.verify_offset, sizeof(*hdr));
}
}
projects / fio.git / blobdiff