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Separate checksum addition/subtraction into 2 steps

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Nico Schottelius 2019-07-16 12:30:29 +02:00
commit 811e4c2b11
2 changed files with 6 additions and 2 deletions
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5
p4src/actions_delta_checksum.p4
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@ -54,8 +54,9 @@ action delta_udp_from_v4_to_v6()
{
delta_prepare();
// hdr.udp.checksum = meta.v6sum;
hdr.udp.checksum = meta.v4sum;
// hdr.udp.checksum = hdr.udp.checksum + meta.v6sum - meta.v4sum;
// hdr.udp.checksum = meta.v4sum;
hdr.udp.checksum = hdr.udp.checksum + meta.v6sum;
hdr.udp.checksum = hdr.udp.checksum - meta.v4sum;
}
action delta_tcp_from_v4_to_v6()