Change checksum verification code so it does require to modify image.
Signed-off-by: Pali Rohár pali@kernel.org --- cmd/mvebu/bubt.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/cmd/mvebu/bubt.c b/cmd/mvebu/bubt.c index 820d342ae100..1b08ca9298c2 100644 --- a/cmd/mvebu/bubt.c +++ b/cmd/mvebu/bubt.c @@ -739,18 +739,14 @@ static int check_image_header(void) return -ENOEXEC; }
- /* The checksum value is discarded from checksum calculation */ - hdr->prolog_checksum = 0; - checksum = do_checksum32((u32 *)hdr, header_len); + checksum -= hdr->prolog_checksum; if (checksum != checksum_ref) { printf("Error: Bad Image checksum. 0x%x != 0x%x\n", checksum, checksum_ref); return -ENOEXEC; }
- /* Restore the checksum before writing */ - hdr->prolog_checksum = checksum_ref; printf("Image checksum...OK!\n");
return 0;