Add checksum to verify_header
Currently we don't know if the verify_header itself is
valid when pulled off a disk. While it will fail verify
if it is, fio might then confuse the 'expected' and
'received' data since it re-generates the corrupted
crc with the seed stored. But if the seed is corrupt,
then we fail.
So checksum the verify header, so that we know for a fact
whether the header is valid or not.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/verify.h b/verify.h
index 49ce417..ec7365c 100644
--- a/verify.h
+++ b/verify.h
@@ -4,6 +4,7 @@
#include <stdint.h>
#define FIO_HDR_MAGIC 0xf00baaef
+#define FIO_HDR_MAGIC2 0xf00dbeef
enum {
VERIFY_NONE = 0, /* no verification */
@@ -28,10 +29,13 @@
* data.
*/
struct verify_header {
- unsigned int fio_magic;
- unsigned int len;
- unsigned int verify_type;
- unsigned long rand_seed;
+ uint32_t fio_magic;
+ uint32_t len;
+ uint32_t verify_type;
+ uint32_t pad1;
+ uint64_t rand_seed;
+ uint32_t pad2;
+ uint32_t crc32;
};
struct vhdr_md5 {