Commit 8ed78166 authored Mar 19, 2013 by Daniel Borkmann Committed by David S. Miller Mar 20, 2013

flow_keys: include thoff into flow_keys for later usage



In skb_flow_dissect(), we perform a dissection of a skbuff. Since we're
doing the work here anyway, also store thoff for a later usage, e.g. in
the BPF filter.

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent e0ebcb80

include/net/flow_keys.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,7 @@ struct flow_keys {
		__be32 ports;
		__be16 port16[2];
		};
		u16 thoff;
		u8 ip_proto;
		};

net/core/flow_dissector.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -140,6 +140,8 @@ bool skb_flow_dissect(const struct sk_buff skb, struct flow_keys flow)
		flow->ports = *ports;
		}

		flow->thoff = (u16) nhoff;

		return true;
		}
		EXPORT_SYMBOL(skb_flow_dissect);