Add sample crc64 checksum
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/verify.c b/verify.c
index 42a56d7..156f068 100644
--- a/verify.c
+++ b/verify.c
@@ -76,6 +76,22 @@
return 0;
}
+static int verify_io_u_crc64(struct verify_header *hdr, struct io_u *io_u)
+{
+ unsigned char *p = io_u->buf + sizeof(*hdr);
+ unsigned long long c;
+
+ c = crc64(p, hdr->len - sizeof(*hdr));
+
+ if (c != hdr->crc64) {
+ log_err("crc64: verify failed at %llu/%lu\n", io_u->offset, io_u->buflen);
+ log_err("crc64: wanted %llx, got %llx\n", hdr->crc64, c);
+ return 1;
+ }
+
+ return 0;
+}
+
static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u)
{
unsigned char *p = io_u->buf;
@@ -130,6 +146,9 @@
case VERIFY_MD5:
ret = verify_io_u_md5(hdr, io_u);
break;
+ case VERIFY_CRC64:
+ ret = verify_io_u_crc64(hdr, io_u);
+ break;
case VERIFY_CRC32:
ret = verify_io_u_crc32(hdr, io_u);
break;
@@ -165,6 +184,11 @@
hdr->crc32 = crc32(p, len);
}
+static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
+{
+ hdr->crc64 = crc64(p, len);
+}
+
static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
{
struct md5_ctx md5_ctx = {
@@ -199,6 +223,9 @@
case VERIFY_MD5:
fill_md5(hdr, p, len);
break;
+ case VERIFY_CRC64:
+ fill_crc64(hdr, p, len);
+ break;
case VERIFY_CRC32:
fill_crc32(hdr, p, len);
break;