netfilter: bridge: pass L2 header and VLAN as netlink attributes in queues to userspace

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- This creates 2 netlink attribute NFQA_VLAN and NFQA_L2HDR.
- These are filled up for the PF_BRIDGE family on the way to userspace.
- NFQA_VLAN is a nested attribute, with the NFQA_VLAN_PROTO and the
  NFQA_VLAN_TCI carrying the corresponding vlan_proto and vlan_tci
  fields from the skb using big endian ordering (and using the CFI
  bit as the VLAN_TAG_PRESENT flag in vlan_tci as in the skb)

Signed-off-by: Stephane Bryant <stephane.ml.bryant@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

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Stephane Bryant 2016-03-26 08:42:11 +01:00 • committed by Pablo Neira Ayuso

parent ac28634456

commit 15824ab29f

2 changed files with 68 additions and 0 deletions

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10

include/uapi/linux/netfilter/nfnetlink_queue.h

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58

net/netfilter/nfnetlink_queue.c

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