Fix off-by-one in tcp, too

4 years ago · 6812dc46fd
parent 7cc52b3c0d
commit 6812dc46fd
1 changed files with 1 additions and 1 deletions
--- a/p4src/checksum_diff.p4
+++ b/p4src/checksum_diff.p4
@ -209,7 +209,7 @@ control MyIngress(inout headers hdr,
                    v4sum();
                    v6sum();
                    bit<16> diff = meta.v6sum - meta.v4sum;
-                    hdr.tcp.checksum = hdr.tcp.checksum + ~diff;
+                    hdr.tcp.checksum = hdr.tcp.checksum + ~diff +1;

                    #else