Try to cast inside the checksum call

4 years ago · 60a84af033
1 changed files with 2 additions and 2 deletions
--- a/p4debug/bug2-cast-in-checksum/checksums.p4
+++ b/p4debug/bug2-cast-in-checksum/checksums.p4
@ -21,13 +21,13 @@ control MyVerifyChecksum(inout headers hdr, inout metadata meta) {

 control MyComputeChecksum(inout headers  hdr, inout metadata meta) {
    apply {
-        meta.cast_length = (bit<32>) hdr.ipv6.payload_length;
+

        update_checksum_with_payload(meta.do_cksum == 1,
 		 	{
                hdr.ipv6.src_addr,         /* 128 */
 		 		hdr.ipv6.dst_addr,         /* 128 */
-                meta.cast_length,          /* 32 */
+                meta.cast_length = (bit<32>) hdr.ipv6.payload_length;
                24w0,                      /* 24 0's */
                PROTO_ICMP6                /* 8 */
            },