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, 2 insertions, 3 deletions

diff --git a/sys/net80211/ieee80211_scan.h b/sys/net80211/ieee80211_scan.h
index edba660..84a57ff 100644
--- a/sys/net80211/ieee80211_scan.h
+++ b/sys/net80211/ieee80211_scan.h
@@ -150,7 +150,7 @@ struct ieee80211_scanparams;
 void	ieee80211_add_scan(struct ieee80211vap *,
 		const struct ieee80211_scanparams *,
 		const struct ieee80211_frame *,
-		int subtype, int rssi, int noise, int rstamp);
+		int subtype, int rssi, int noise);
 void	ieee80211_scan_timeout(struct ieee80211com *);
 
 void	ieee80211_scan_assoc_success(struct ieee80211vap *,
@@ -224,7 +224,6 @@ struct ieee80211_scan_entry {
 	uint8_t		se_ssid[2+IEEE80211_NWID_LEN];
 	uint8_t		se_rates[2+IEEE80211_RATE_MAXSIZE];
 	uint8_t		se_xrates[2+IEEE80211_RATE_MAXSIZE];
-	uint32_t	se_rstamp;	/* recv timestamp */
 	union {
 		uint8_t		data[8];
 		u_int64_t	tsf;
@@ -269,7 +268,7 @@ struct ieee80211_scanner {
 	int	(*scan_add)(struct ieee80211_scan_state *,
 			const struct ieee80211_scanparams *,
 			const struct ieee80211_frame *,
-			int subtype, int rssi, int noise, int rstamp);
+			int subtype, int rssi, int noise);
 	/* age and/or purge entries in the cache */
 	void	(*scan_age)(struct ieee80211_scan_state *);
 	/* note that association failed for an entry */