Overhaul monitor mode handling:

o replace DLT_IEEE802_11 support in net80211 with DLT_IEEE802_11_RADIO
  and remove explicit bpf support from wireless drivers; drivers now
  use ieee80211_radiotap_attach to setup shared data structures that
  hold the radiotap header for each packet tx/rx
o remove rx timestamp from the rx path; it was used only by the tdma support
  for debugging and was mostly useless due to it being 32-bits and mostly
  unavailable
o track DLT_IEEE80211_RADIO bpf attachments and maintain per-vap and
  per-com state when there are active taps
o track the number of monitor mode vaps
o use bpf tap and monitor mode vap state to decide when to collect radiotap
  state and dispatch frames; drivers no longer explicitly directly check
  bpf state or use bpf calls to tap frames
o handle radiotap state updates on channel change in net80211; drivers
  should not do this (unless they bypass net80211 which is almost always
  a mistake)
o update various drivers to be more consistent/correct in handling radiotap
o update ral to include TSF in radiotap'd frames
o add promisc mode callback to wi

Reviewed by:	cbzimmer, rpaulo, thompsa

1 files changed, 1 insertions, 3 deletions

diff --git a/sys/net80211/ieee80211_superg.c b/sys/net80211/ieee80211_superg.c
index de5df09..d75917b 100644
--- a/sys/net80211/ieee80211_superg.c
+++ b/sys/net80211/ieee80211_superg.c
@@ -503,9 +503,6 @@ ff_transmit(struct ieee80211_node *ni, struct mbuf *m)
 		struct ifnet *ifp = vap->iv_ifp;
 		struct ifnet *parent = ni->ni_ic->ic_ifp;
 
-		if (bpf_peers_present(vap->iv_rawbpf))
-			bpf_mtap(vap->iv_rawbpf, m);
-
 		error = parent->if_transmit(parent, m);
 		if (error != 0) {
 			/* NB: IFQ_HANDOFF reclaims mbuf */
@@ -835,6 +832,7 @@ ieee80211_dturbo_switch(struct ieee80211vap *vap, int newflags)
 	ic->ic_curchan = chan;
 	ic->ic_rt = ieee80211_get_ratetable(chan);
 	ic->ic_set_channel(ic);
+	ieee80211_radiotap_chan_change(ic);
 	/* NB: do not need to reset ERP state 'cuz we're in sta mode */
 }