Add crc16 verify type
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/verify.c b/verify.c
index 243b663..cca070c 100644
--- a/verify.c
+++ b/verify.c
@@ -42,9 +42,26 @@
log_info("\n");
}
+static int verify_io_u_crc16(struct verify_header *hdr, struct io_u *io_u)
+{
+ unsigned char *p = io_u->buf;
+ unsigned short c;
+
+ p += sizeof(*hdr);
+ c = crc16(p, hdr->len - sizeof(*hdr));
+
+ if (c != hdr->crc16) {
+ log_err("crc16: verify failed at %llu/%lu\n", io_u->offset, io_u->buflen);
+ log_err("crc16: wanted %lx, got %x\n", hdr->crc32, c);
+ return 1;
+ }
+
+ return 0;
+}
+
static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u)
{
- unsigned char *p = (unsigned char *) io_u->buf;
+ unsigned char *p = io_u->buf;
unsigned long c;
p += sizeof(*hdr);
@@ -61,7 +78,7 @@
static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u)
{
- unsigned char *p = (unsigned char *) io_u->buf;
+ unsigned char *p = io_u->buf;
struct md5_ctx md5_ctx;
memset(&md5_ctx, 0, sizeof(md5_ctx));
@@ -95,6 +112,8 @@
ret = verify_io_u_md5(hdr, io_u);
else if (hdr->verify_type == VERIFY_CRC32)
ret = verify_io_u_crc32(hdr, io_u);
+ else if (hdr->verify_type == VERIFY_CRC16)
+ ret = verify_io_u_crc16(hdr, io_u);
else {
log_err("Bad verify type %u\n", hdr->verify_type);
ret = 1;
@@ -106,6 +125,11 @@
return 0;
}
+static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
+{
+ hdr->crc16 = crc16(p, len);
+}
+
static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
{
hdr->crc32 = crc32(p, len);
@@ -143,6 +167,9 @@
} else if (td->o.verify == VERIFY_CRC32) {
fill_crc32(&hdr, p, io_u->buflen - sizeof(hdr));
hdr.verify_type = VERIFY_CRC32;
+ } else if (td->o.verify == VERIFY_CRC16) {
+ fill_crc16(&hdr, p, io_u->buflen - sizeof(hdr));
+ hdr.verify_type = VERIFY_CRC16;
}
memcpy(io_u->buf, &hdr, sizeof(hdr));