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| author |   Tom Herbert <therbert@google.com> | 2014-06-10 18:54:13 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-06-11 15:46:12 -0700 |
| commit | 5d0c2b95bc57cf8fdc0e7b3e9d7e751eb65ad052 (patch) | |
| tree | 7614df8920d998a75dda7c1530ec6fc4d558d1f4 /net/ipv4/gre_offload.c | |
| parent | Merge branch 'qlcnic-next' (diff) | |
| download | linux-dev-5d0c2b95bc57cf8fdc0e7b3e9d7e751eb65ad052.tar.xz linux-dev-5d0c2b95bc57cf8fdc0e7b3e9d7e751eb65ad052.zip | |
net: Preserve CHECKSUM_COMPLETE at validation
Currently when the first checksum in a packet is validated using
CHECKSUM_COMPLETE, ip_summed is overwritten to be CHECKSUM_UNNECESSARY
so that any subsequent checksums in the packet are not correctly
validated.
This patch adds csum_valid flag in sk_buff and uses that to indicate
validated checksum instead of setting CHECKSUM_UNNECESSARY. The bit
is set accordingly in the skb_checksum_validate_* functions. The flag
is checked in skb_checksum_complete, so that validation is communicated
between checksum_init and checksum_complete sequence in TCP and UDP.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/gre_offload.c')
0 files changed, 0 insertions, 0 deletions