tree 8665618f7ecc42443cbbb98cd6766e8439ca8de7
parent f10644ce653e130280e93da8a1096454a4d8d61a
author Lorenzo Colitti <lorenzo@google.com> 1391991605 +0900
committer Lorenzo Colitti <lorenzo@google.com> 1394299339 +0900

DO NOT MERGE: Fix up checksums instead of recalculating them.

Currently the checksums of translated packets are calculated
from scratch by checksumming the translated packet. This is slow
and does not work in the case of fragments, because the whole
packet is not available. Instead, calculate the checksum by
adjusting the checksum of the original packet.

Bug: 11542311
Bug: 12116252
Change-Id: I6b78a94ca5bd96b13ee2653b6200551193b3dcc1