tree dc87b78a355096b9dfdfa892b4f94a962020a766
parent d8c9283089287341c85a0a69de32c2287a990e71
author Paul Moore <paul.moore@hp.com> 1199771801 -0800
committer David S. Miller <davem@davemloft.net> 1199863817 -0800

[NET]: Clone the sk_buff 'iif' field in __skb_clone()

Both NetLabel and SELinux (other LSMs may grow to use it as well) rely
on the 'iif' field to determine the receiving network interface of
inbound packets.  Unfortunately, at present this field is not
preserved across a skb clone operation which can lead to garbage
values if the cloned skb is sent back through the network stack.  This
patch corrects this problem by properly copying the 'iif' field in
__skb_clone() and removing the 'iif' field assignment from
skb_act_clone() since it is no longer needed.

Also, while we are here, put the assignments in the same order as the
offsets to reduce cacheline bounces.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>