Add sample crc64 checksum

[fio.git] / verify.c

diff --git a/verify.c b/verify.c
index 42a56d7162631e51be05d10394b40fa91b1bd382..156f068687097343469a6839c712adf862d35ab5 100644 (file)
--- a/verify.c
+++ b/verify.c
@@ -76,6 +76,22 @@ static int verify_io_u_crc16(struct verify_header *hdr, struct io_u *io_u)
        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 @@ int verify_io_u(struct thread_data *td, struct io_u *io_u)
        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 @@ static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
        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 @@ void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
        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;