flow_dissector: handle no-skb use case

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When called without skb, gather all required data from the
__skb_flow_dissect's arguments and use recently introduces
no-skb mode of bpf flow dissector.

Note: WARN_ON_ONCE(!net) will now trigger for eth_get_headlen users.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

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Stanislav Fomichev 2019-04-22 08:55:47 -07:00 • committed by Daniel Borkmann

parent 3cbf4ffba5

commit 9b52e3f267

2 changed files with 25 additions and 32 deletions

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5

include/linux/skbuff.h

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52

net/core/flow_dissector.c

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