diff options
| author | Eric Dumazet <[email protected]> | 2012-10-27 02:26:17 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2012-10-31 14:00:15 -0400 |
| commit | f3335031b9452baebfe49b8b5e55d3fe0c4677d1 (patch) | |
| tree | c73f4d2827d3b58b4866488a35b4b462e52713ba /tools/perf/scripts/python/net_dropmonitor.py | |
| parent | 0f6ae8f14e7a6a068e9a98a0d3484ffa6bf2c6bb (diff) | |
net: filter: add vlan tag access
BPF filters lack ability to access skb->vlan_tci
This patch adds two new ancillary accessors :
SKF_AD_VLAN_TAG (44) mapped to vlan_tx_tag_get(skb)
SKF_AD_VLAN_TAG_PRESENT (48) mapped to vlan_tx_tag_present(skb)
This allows libpcap/tcpdump to use a kernel filter instead of
having to fallback to accept all packets, then filter them in
user space.
Signed-off-by: Eric Dumazet <[email protected]>
Suggested-by: Ani Sinha <[email protected]>
Suggested-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/net_dropmonitor.py')
0 files changed, 0 insertions, 0 deletions