diff options
| author | Grzegorz Bajorski <grzegorz.bajorski@tieto.com> | 2015-12-11 14:39:46 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-02-24 09:04:19 +0100 |
| commit | 178830481eee5eea147a1c8fab67a96e09d80345 (patch) | |
| tree | e0f517fae9298780398500ce2fe6a9892334e752 /net/mac80211/rx.c | |
| parent | 412a6d800c7380c1b87c11080c7da905c27cfea8 (diff) | |
| download | lwn-178830481eee5eea147a1c8fab67a96e09d80345.tar.gz lwn-178830481eee5eea147a1c8fab67a96e09d80345.zip | |
mac80211: allow drivers to report (non-)monitor frames
Some drivers offload some frames internally (e.g.
AddBa). Reporting such frames to mac80211 would
only confuse MLME. However it would be useful to
be able to pass such frames to monitor interfaces
for sniffing purposes, e.g. when running AP +
monitor.
To do that allow drivers to tell mac80211 whether
a given frame should be:
- processed but not delivered to any monitor vif
- not processed but delievered to monitor vifs
only
Signed-off-by: Grzegorz Bajorski <grzegorz.bajorski@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/rx.c')
| -rw-r--r-- | net/mac80211/rx.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index fe675d76f29c..ae993edfdecf 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -122,7 +122,8 @@ static inline bool should_drop_frame(struct sk_buff *skb, int present_fcs_len, hdr = (void *)(skb->data + rtap_vendor_space); if (status->flag & (RX_FLAG_FAILED_FCS_CRC | - RX_FLAG_FAILED_PLCP_CRC)) + RX_FLAG_FAILED_PLCP_CRC | + RX_FLAG_ONLY_MONITOR)) return true; if (unlikely(skb->len < 16 + present_fcs_len + rtap_vendor_space)) @@ -507,7 +508,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, return NULL; } - if (!local->monitors) { + if (!local->monitors || (status->flag & RX_FLAG_SKIP_MONITOR)) { if (should_drop_frame(origskb, present_fcs_len, rtap_vendor_space)) { dev_kfree_skb(origskb); |