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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-11-28 05:22:18 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-11-28 19:09:07 -0500 |
| commit | 0744dd00c1b1be99a25b62b1b48df440e82e57e0 (patch) | |
| tree | 94bff02f61657c4b02709f472dcb56f9dc927a18 /include/net/flow_keys.h | |
| parent | de0396f4003a24a57875b35f2996fdaa47bc1d0d (diff) | |
| download | linux-0744dd00c1b1be99a25b62b1b48df440e82e57e0.tar.bz2 | |
net: introduce skb_flow_dissect()
We use at least two flow dissectors in network stack, with known
limitations and code duplication.
Introduce skb_flow_dissect() to factorize this, highly inspired from
existing dissector from __skb_get_rxhash()
Note : We extensively use skb_header_pointer(), this permits us to not
touch skb at all.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/flow_keys.h')
| -rw-r--r-- | include/net/flow_keys.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/net/flow_keys.h b/include/net/flow_keys.h new file mode 100644 index 000000000000..e4cb28526563 --- /dev/null +++ b/include/net/flow_keys.h @@ -0,0 +1,15 @@ +#ifndef _NET_FLOW_KEYS_H +#define _NET_FLOW_KEYS_H + +struct flow_keys { + __be32 src; + __be32 dst; + union { + __be32 ports; + __be16 port16[2]; + }; + u8 ip_proto; +}; + +extern bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow); +#endif |