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| author |   David Miller <davem@davemloft.net> | 2015-04-05 22:19:04 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-04-07 15:25:55 -0400 |
| commit | 7026b1ddb6b8d4e6ee33dc2bd06c0ca8746fa7ab (patch) | |
| tree | 3e11ed0f186ea6066a3f7efecb88d85bc732ee51 /include/net/ip6_route.h | |
| parent | netfilter: Add socket pointer to nf_hook_state. (diff) | |
| download | linux-dev-7026b1ddb6b8d4e6ee33dc2bd06c0ca8746fa7ab.tar.xz linux-dev-7026b1ddb6b8d4e6ee33dc2bd06c0ca8746fa7ab.zip | |
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 'include/net/ip6_route.h')
| -rw-r--r-- | include/net/ip6_route.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index eda131d179d9..5e192068e6cb 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -170,7 +170,8 @@ static inline bool ipv6_anycast_destination(const struct sk_buff *skb) return rt->rt6i_flags & RTF_ANYCAST; } -int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *)); +int ip6_fragment(struct sock *sk, struct sk_buff *skb, + int (*output)(struct sock *, struct sk_buff *)); static inline int ip6_skb_dst_mtu(struct sk_buff *skb) { |