a7y18lte-ubports/android_kernel_samsung_universal7885
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flow_keys: include thoff into flow_keys for later usage

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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>
This commit is contained in:
Daniel Borkmann 2013-03-19 06:39:29 +00:00 committed by David S. Miller
parent e0ebcb80cb
commit 8ed781668d
2 changed files with 3 additions and 0 deletions
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1
include/net/flow_keys.h
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@ -9,6 +9,7 @@ struct flow_keys {
__be32 ports; __be32 ports;
__be16 port16[2]; __be16 port16[2];
}; };
u16 thoff;
u8 ip_proto; u8 ip_proto;
}; };

2
net/core/flow_dissector.c
View File

@ -140,6 +140,8 @@ ipv6:
flow->ports = *ports; flow->ports = *ports;
} }
flow->thoff = (u16) nhoff;
return true; return true;
} }
EXPORT_SYMBOL(skb_flow_dissect); EXPORT_SYMBOL(skb_flow_dissect);