clatd.c - add support for UDPLITE
This is trivial - as the UDPLITE pseudoheader is identical
to the UDP pseudoheader (except that the UDPLITE pseudo length
is derived from the IPv4 total length / IPv6 payload length
field, instead of being copied from the UDPLITE header 'coverage
length' field - but this doesn't matter, as it [ie. the udplite
payload length] doesn't change during 464xlat translation).
Additionally UDPLITE never sends a checksum value of 0,
as at least 8 bytes (the UDPLITE header) *must* be included
in the checksum field, and a 0 must be sent as 0xFFFF.
See: https://datatracker.ietf.org/doc/html/rfc3828
Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I00a110b793fcf3cf705a9a706811da7866c3e810
1 file changed