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authorDavid Miller <davem@davemloft.net>2015-04-06 04:19:04 +0200
committerDavid S. Miller <davem@davemloft.net>2015-04-07 21:25:55 +0200
commit7026b1ddb6b8d4e6ee33dc2bd06c0ca8746fa7ab (patch)
tree3e11ed0f186ea6066a3f7efecb88d85bc732ee51 /kernel/taskstats.c
parentnetfilter: Add socket pointer to nf_hook_state. (diff)
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netfilter: Pass socket pointer down through okfn().
On the output paths in particular, we have to sometimes deal with two socket contexts. First, and usually skb->sk, is the local socket that generated the frame. And second, is potentially the socket used to control a tunneling socket, such as one the encapsulates using UDP. We do not want to disassociate skb->sk when encapsulating in order to fix this, because that would break socket memory accounting. The most extreme case where this can cause huge problems is an AF_PACKET socket transmitting over a vxlan device. We hit code paths doing checks that assume they are dealing with an ipv4 socket, but are actually operating upon the AF_PACKET one. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/taskstats.c')
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