xref: /freebsd/sys/net80211/ieee80211_var.h (revision 70e0bbedef95258a4dadc996d641a9bebd3f107d)
1 /*-
2  * Copyright (c) 2001 Atsushi Onoe
3  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 #ifndef _NET80211_IEEE80211_VAR_H_
29 #define _NET80211_IEEE80211_VAR_H_
30 
31 /*
32  * Definitions for IEEE 802.11 drivers.
33  */
34 /* NB: portability glue must go first */
35 #if defined(__NetBSD__)
36 #include <net80211/ieee80211_netbsd.h>
37 #elif defined(__FreeBSD__)
38 #include <net80211/ieee80211_freebsd.h>
39 #elif defined(__linux__)
40 #include <net80211/ieee80211_linux.h>
41 #else
42 #error	"No support for your operating system!"
43 #endif
44 
45 #include <net80211/_ieee80211.h>
46 #include <net80211/ieee80211.h>
47 #include <net80211/ieee80211_ageq.h>
48 #include <net80211/ieee80211_crypto.h>
49 #include <net80211/ieee80211_dfs.h>
50 #include <net80211/ieee80211_ioctl.h>		/* for ieee80211_stats */
51 #include <net80211/ieee80211_phy.h>
52 #include <net80211/ieee80211_power.h>
53 #include <net80211/ieee80211_node.h>
54 #include <net80211/ieee80211_proto.h>
55 #include <net80211/ieee80211_radiotap.h>
56 #include <net80211/ieee80211_scan.h>
57 
58 #define	IEEE80211_TXPOWER_MAX	100	/* .5 dbM (XXX units?) */
59 #define	IEEE80211_TXPOWER_MIN	0	/* kill radio */
60 
61 #define	IEEE80211_DTIM_DEFAULT	1	/* default DTIM period */
62 #define	IEEE80211_BINTVAL_DEFAULT 100	/* default beacon interval (TU's) */
63 
64 #define	IEEE80211_BMISS_MAX	2	/* maximum consecutive bmiss allowed */
65 #define	IEEE80211_HWBMISS_DEFAULT 7	/* h/w bmiss threshold (beacons) */
66 
67 #define	IEEE80211_BGSCAN_INTVAL_MIN	15	/* min bg scan intvl (secs) */
68 #define	IEEE80211_BGSCAN_INTVAL_DEFAULT	(5*60)	/* default bg scan intvl */
69 
70 #define	IEEE80211_BGSCAN_IDLE_MIN	100	/* min idle time (ms) */
71 #define	IEEE80211_BGSCAN_IDLE_DEFAULT	250	/* default idle time (ms) */
72 
73 #define	IEEE80211_SCAN_VALID_MIN	10	/* min scan valid time (secs) */
74 #define	IEEE80211_SCAN_VALID_DEFAULT	60	/* default scan valid time */
75 
76 #define	IEEE80211_PS_SLEEP	0x1	/* STA is in power saving mode */
77 #define	IEEE80211_PS_MAX_QUEUE	50	/* maximum saved packets */
78 
79 #define	IEEE80211_FIXED_RATE_NONE	0xff
80 #define	IEEE80211_TXMAX_DEFAULT		6	/* default ucast max retries */
81 
82 #define	IEEE80211_RTS_DEFAULT		IEEE80211_RTS_MAX
83 #define	IEEE80211_FRAG_DEFAULT		IEEE80211_FRAG_MAX
84 
85 #define	IEEE80211_MS_TO_TU(x)	(((x) * 1000) / 1024)
86 #define	IEEE80211_TU_TO_MS(x)	(((x) * 1024) / 1000)
87 #define	IEEE80211_TU_TO_TICKS(x)(((x) * 1024 * hz) / (1000 * 1000))
88 
89 /*
90  * 802.11 control state is split into a common portion that maps
91  * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
92  * that are bound to an ieee80211com instance and share a single
93  * underlying device.  Each VAP has a corresponding OS device
94  * entity through which traffic flows and that applications use
95  * for issuing ioctls, etc.
96  */
97 
98 /*
99  * Data common to one or more virtual AP's.  State shared by
100  * the underlying device and the net80211 layer is exposed here;
101  * e.g. device-specific callbacks.
102  */
103 struct ieee80211vap;
104 typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
105 
106 struct ieee80211_appie {
107 	uint16_t		ie_len;		/* size of ie_data */
108 	uint8_t			ie_data[];	/* user-specified IE's */
109 };
110 
111 struct ieee80211_tdma_param;
112 struct ieee80211_rate_table;
113 struct ieee80211_tx_ampdu;
114 struct ieee80211_rx_ampdu;
115 struct ieee80211_superg;
116 struct ieee80211_frame;
117 
118 struct ieee80211com {
119 	struct ifnet		*ic_ifp;	/* associated device */
120 	ieee80211_com_lock_t	ic_comlock;	/* state update lock */
121 	TAILQ_HEAD(, ieee80211vap) ic_vaps;	/* list of vap instances */
122 	int			ic_headroom;	/* driver tx headroom needs */
123 	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
124 	enum ieee80211_opmode	ic_opmode;	/* operation mode */
125 	struct ifmedia		ic_media;	/* interface media config */
126 	struct callout		ic_inact;	/* inactivity processing */
127 	struct taskqueue	*ic_tq;		/* deferred state thread */
128 	struct task		ic_parent_task;	/* deferred parent processing */
129 	struct task		ic_promisc_task;/* deferred promisc update */
130 	struct task		ic_mcast_task;	/* deferred mcast update */
131 	struct task		ic_chan_task;	/* deferred channel change */
132 	struct task		ic_bmiss_task;	/* deferred beacon miss hndlr */
133 
134 	uint32_t		ic_flags;	/* state flags */
135 	uint32_t		ic_flags_ext;	/* extended state flags */
136 	uint32_t		ic_flags_ht;	/* HT state flags */
137 	uint32_t		ic_flags_ven;	/* vendor state flags */
138 	uint32_t		ic_caps;	/* capabilities */
139 	uint32_t		ic_htcaps;	/* HT capabilities */
140 	uint32_t		ic_htextcaps;	/* HT extended capabilities */
141 	uint32_t		ic_cryptocaps;	/* crypto capabilities */
142 	uint8_t			ic_modecaps[2];	/* set of mode capabilities */
143 	uint8_t			ic_promisc;	/* vap's needing promisc mode */
144 	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
145 	uint8_t			ic_nrunning;	/* vap's marked running */
146 	uint8_t			ic_curmode;	/* current mode */
147 	uint16_t		ic_bintval;	/* beacon interval */
148 	uint16_t		ic_lintval;	/* listen interval */
149 	uint16_t		ic_holdover;	/* PM hold over duration */
150 	uint16_t		ic_txpowlimit;	/* global tx power limit */
151 	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
152 
153 	/*
154 	 * Channel state:
155 	 *
156 	 * ic_channels is the set of available channels for the device;
157 	 *    it is setup by the driver
158 	 * ic_nchans is the number of valid entries in ic_channels
159 	 * ic_chan_avail is a bit vector of these channels used to check
160 	 *    whether a channel is available w/o searching the channel table.
161 	 * ic_chan_active is a (potentially) constrained subset of
162 	 *    ic_chan_avail that reflects any mode setting or user-specified
163 	 *    limit on the set of channels to use/scan
164 	 * ic_curchan is the current channel the device is set to; it may
165 	 *    be different from ic_bsschan when we are off-channel scanning
166 	 *    or otherwise doing background work
167 	 * ic_bsschan is the channel selected for operation; it may
168 	 *    be undefined (IEEE80211_CHAN_ANYC)
169 	 * ic_prevchan is a cached ``previous channel'' used to optimize
170 	 *    lookups when switching back+forth between two channels
171 	 *    (e.g. for dynamic turbo)
172 	 */
173 	int			ic_nchans;	/* # entries in ic_channels */
174 	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
175 	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
176 	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
177 	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
178 	struct ieee80211_channel *ic_curchan;	/* current channel */
179 	const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
180 	struct ieee80211_channel *ic_bsschan;	/* bss channel */
181 	struct ieee80211_channel *ic_prevchan;	/* previous channel */
182 	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
183 	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
184 	struct ieee80211_channel *ic_countryie_chan;
185 
186 	/* 802.11h/DFS state */
187 	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
188 	short			ic_csa_mode;	/* mode for doing CSA */
189 	short			ic_csa_count;	/* count for doing CSA */
190 	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
191 
192 	struct ieee80211_scan_state *ic_scan;	/* scan state */
193 	int			ic_lastdata;	/* time of last data frame */
194 	int			ic_lastscan;	/* time last scan completed */
195 
196 	/* NB: this is the union of all vap stations/neighbors */
197 	int			ic_max_keyix;	/* max h/w key index */
198 	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
199 	struct ieee80211_ageq	ic_stageq;	/* frame staging queue */
200 	uint32_t		ic_hash_key;	/* random key for mac hash */
201 
202 	/* XXX multi-bss: split out common/vap parts */
203 	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
204 
205 	/* XXX multi-bss: can per-vap be done/make sense? */
206 	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
207 	uint16_t		ic_nonerpsta;	/* # non-ERP stations */
208 	uint16_t		ic_longslotsta;	/* # long slot time stations */
209 	uint16_t		ic_sta_assoc;	/* stations associated */
210 	uint16_t		ic_ht_sta_assoc;/* HT stations associated */
211 	uint16_t		ic_ht40_sta_assoc;/* HT40 stations associated */
212 	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
213 	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
214 	int			ic_lastnonerp;	/* last time non-ERP sta noted*/
215 	int			ic_lastnonht;	/* last time non-HT sta noted */
216 	uint8_t			ic_rxstream;    /* # RX streams */
217 	uint8_t			ic_txstream;    /* # TX streams */
218 
219 	/* optional state for Atheros SuperG protocol extensions */
220 	struct ieee80211_superg	*ic_superg;
221 
222 	/* radiotap handling */
223 	struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
224 	void			*ic_txchan;	/* channel state in ic_th */
225 	struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
226 	void			*ic_rxchan;	/* channel state in ic_rh */
227 	int			ic_montaps;	/* active monitor mode taps */
228 
229 	/* virtual ap create/delete */
230 	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
231 				    const char [IFNAMSIZ], int,
232 				    enum ieee80211_opmode, int,
233 				    const uint8_t [IEEE80211_ADDR_LEN],
234 				    const uint8_t [IEEE80211_ADDR_LEN]);
235 	void			(*ic_vap_delete)(struct ieee80211vap *);
236 	/* operating mode attachment */
237 	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
238 	/* return hardware/radio capabilities */
239 	void			(*ic_getradiocaps)(struct ieee80211com *,
240 				    int, int *, struct ieee80211_channel []);
241 	/* check and/or prepare regdomain state change */
242 	int			(*ic_setregdomain)(struct ieee80211com *,
243 				    struct ieee80211_regdomain *,
244 				    int, struct ieee80211_channel []);
245 
246 	int			(*ic_set_quiet)(struct ieee80211_node *,
247 				    u_int8_t *quiet_elm);
248 
249 	/* send/recv 802.11 management frame */
250 	int			(*ic_send_mgmt)(struct ieee80211_node *,
251 				     int, int);
252 	/* send raw 802.11 frame */
253 	int			(*ic_raw_xmit)(struct ieee80211_node *,
254 				    struct mbuf *,
255 				    const struct ieee80211_bpf_params *);
256 	/* update device state for 802.11 slot time change */
257 	void			(*ic_updateslot)(struct ifnet *);
258 	/* handle multicast state changes */
259 	void			(*ic_update_mcast)(struct ifnet *);
260 	/* handle promiscuous mode changes */
261 	void			(*ic_update_promisc)(struct ifnet *);
262 	/* new station association callback/notification */
263 	void			(*ic_newassoc)(struct ieee80211_node *, int);
264 	/* TDMA update notification */
265 	void			(*ic_tdma_update)(struct ieee80211_node *,
266 				    const struct ieee80211_tdma_param *, int);
267 	/* node state management */
268 	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
269 				    const uint8_t [IEEE80211_ADDR_LEN]);
270 	void			(*ic_node_free)(struct ieee80211_node *);
271 	void			(*ic_node_cleanup)(struct ieee80211_node *);
272 	void			(*ic_node_age)(struct ieee80211_node *);
273 	void			(*ic_node_drain)(struct ieee80211_node *);
274 	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
275 	void			(*ic_node_getsignal)(const struct ieee80211_node*,
276 				    int8_t *, int8_t *);
277 	void			(*ic_node_getmimoinfo)(
278 				    const struct ieee80211_node*,
279 				    struct ieee80211_mimo_info *);
280 	/* scanning support */
281 	void			(*ic_scan_start)(struct ieee80211com *);
282 	void			(*ic_scan_end)(struct ieee80211com *);
283 	void			(*ic_set_channel)(struct ieee80211com *);
284 	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
285 				    unsigned long);
286 	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
287 
288 	/*
289 	 * 802.11n ADDBA support.  A simple/generic implementation
290 	 * of A-MPDU tx aggregation is provided; the driver may
291 	 * override these methods to provide their own support.
292 	 * A-MPDU rx re-ordering happens automatically if the
293 	 * driver passes out-of-order frames to ieee80211_input
294 	 * from an assocated HT station.
295 	 */
296 	int			(*ic_recv_action)(struct ieee80211_node *,
297 				    const struct ieee80211_frame *,
298 				    const uint8_t *frm, const uint8_t *efrm);
299 	int			(*ic_send_action)(struct ieee80211_node *,
300 				    int category, int action, void *);
301 	/* check if A-MPDU should be enabled this station+ac */
302 	int			(*ic_ampdu_enable)(struct ieee80211_node *,
303 				    struct ieee80211_tx_ampdu *);
304 	/* start/stop doing A-MPDU tx aggregation for a station */
305 	int			(*ic_addba_request)(struct ieee80211_node *,
306 				    struct ieee80211_tx_ampdu *,
307 				    int dialogtoken, int baparamset,
308 				    int batimeout);
309 	int			(*ic_addba_response)(struct ieee80211_node *,
310 				    struct ieee80211_tx_ampdu *,
311 				    int status, int baparamset, int batimeout);
312 	void			(*ic_addba_stop)(struct ieee80211_node *,
313 				    struct ieee80211_tx_ampdu *);
314 	void			(*ic_addba_response_timeout)(struct ieee80211_node *,
315 				    struct ieee80211_tx_ampdu *);
316 	/* BAR response received */
317 	void			(*ic_bar_response)(struct ieee80211_node *,
318 				    struct ieee80211_tx_ampdu *, int status);
319 	/* start/stop doing A-MPDU rx processing for a station */
320 	int			(*ic_ampdu_rx_start)(struct ieee80211_node *,
321 				    struct ieee80211_rx_ampdu *, int baparamset,
322 				    int batimeout, int baseqctl);
323 	void			(*ic_ampdu_rx_stop)(struct ieee80211_node *,
324 				    struct ieee80211_rx_ampdu *);
325 	uint64_t		ic_spare[7];
326 };
327 
328 struct ieee80211_aclator;
329 struct ieee80211_tdma_state;
330 struct ieee80211_mesh_state;
331 struct ieee80211_hwmp_state;
332 
333 struct ieee80211vap {
334 	struct ifmedia		iv_media;	/* interface media config */
335 	struct ifnet		*iv_ifp;	/* associated device */
336 	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
337 	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
338 	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
339 
340 	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
341 	struct ieee80211com	*iv_ic;		/* back ptr to common state */
342 	uint32_t		iv_debug;	/* debug msg flags */
343 	struct ieee80211_stats	iv_stats;	/* statistics */
344 
345 	uint8_t			iv_myaddr[IEEE80211_ADDR_LEN];
346 	uint32_t		iv_flags;	/* state flags */
347 	uint32_t		iv_flags_ext;	/* extended state flags */
348 	uint32_t		iv_flags_ht;	/* HT state flags */
349 	uint32_t		iv_flags_ven;	/* vendor state flags */
350 	uint32_t		iv_caps;	/* capabilities */
351 	uint32_t		iv_htcaps;	/* HT capabilities */
352 	uint32_t		iv_htextcaps;	/* HT extended capabilities */
353 	enum ieee80211_opmode	iv_opmode;	/* operation mode */
354 	enum ieee80211_state	iv_state;	/* state machine state */
355 	enum ieee80211_state	iv_nstate;	/* pending state */
356 	int			iv_nstate_arg;	/* pending state arg */
357 	struct task		iv_nstate_task;	/* deferred state processing */
358 	struct task		iv_swbmiss_task;/* deferred iv_bmiss call */
359 	struct callout		iv_mgtsend;	/* mgmt frame response timer */
360 						/* inactivity timer settings */
361 	int			iv_inact_init;	/* setting for new station */
362 	int			iv_inact_auth;	/* auth but not assoc setting */
363 	int			iv_inact_run;	/* authorized setting */
364 	int			iv_inact_probe;	/* inactive probe time */
365 
366 	int			iv_des_nssid;	/* # desired ssids */
367 	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
368 	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
369 	struct ieee80211_channel *iv_des_chan;	/* desired channel */
370 	uint16_t		iv_des_mode;	/* desired mode */
371 	int			iv_nicknamelen;	/* XXX junk */
372 	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
373 	u_int			iv_bgscanidle;	/* bg scan idle threshold */
374 	u_int			iv_bgscanintvl;	/* bg scan min interval */
375 	u_int			iv_scanvalid;	/* scan cache valid threshold */
376 	u_int			iv_scanreq_duration;
377 	u_int			iv_scanreq_mindwell;
378 	u_int			iv_scanreq_maxdwell;
379 	uint16_t		iv_scanreq_flags;/* held scan request params */
380 	uint8_t			iv_scanreq_nssid;
381 	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
382 	/* sta-mode roaming state */
383 	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
384 	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
385 
386 	uint8_t			iv_bmissthreshold;
387 	uint8_t			iv_bmiss_count;	/* current beacon miss count */
388 	int			iv_bmiss_max;	/* max bmiss before scan */
389 	uint16_t		iv_swbmiss_count;/* beacons in last period */
390 	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
391 	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
392 
393 	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
394 	int			iv_ampdu_density;/* A-MPDU density */
395 	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
396 	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
397 	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
398 
399 	uint32_t		*iv_aid_bitmap;	/* association id map */
400 	uint16_t		iv_max_aid;
401 	uint16_t		iv_sta_assoc;	/* stations associated */
402 	uint16_t		iv_ps_sta;	/* stations in power save */
403 	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
404 	uint16_t		iv_txseq;	/* mcast xmit seq# space */
405 	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
406 	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
407 	uint8_t			iv_dtim_period;	/* DTIM period */
408 	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
409 						/* set/unset aid pwrsav state */
410 	uint8_t			iv_quiet;	/* Quiet Element */
411 	uint8_t			iv_quiet_count;	/* constant count for Quiet Element */
412 	uint8_t			iv_quiet_count_value;	/* variable count for Quiet Element */
413 	uint8_t			iv_quiet_period;	/* period for Quiet Element */
414 	uint16_t		iv_quiet_duration;	/* duration for Quiet Element */
415 	uint16_t		iv_quiet_offset;	/* offset for Quiet Element */
416 	int			iv_csa_count;	/* count for doing CSA */
417 
418 	struct ieee80211_node	*iv_bss;	/* information for this node */
419 	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
420 	uint16_t		iv_rtsthreshold;
421 	uint16_t		iv_fragthreshold;
422 	int			iv_inact_timer;	/* inactivity timer wait */
423 	/* application-specified IE's to attach to mgt frames */
424 	struct ieee80211_appie	*iv_appie_beacon;
425 	struct ieee80211_appie	*iv_appie_probereq;
426 	struct ieee80211_appie	*iv_appie_proberesp;
427 	struct ieee80211_appie	*iv_appie_assocreq;
428 	struct ieee80211_appie	*iv_appie_assocresp;
429 	struct ieee80211_appie	*iv_appie_wpa;
430 	uint8_t			*iv_wpa_ie;
431 	uint8_t			*iv_rsn_ie;
432 	uint16_t		iv_max_keyix;	/* max h/w key index */
433 	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
434 	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
435 	int			(*iv_key_alloc)(struct ieee80211vap *,
436 				    struct ieee80211_key *,
437 				    ieee80211_keyix *, ieee80211_keyix *);
438 	int			(*iv_key_delete)(struct ieee80211vap *,
439 				    const struct ieee80211_key *);
440 	int			(*iv_key_set)(struct ieee80211vap *,
441 				    const struct ieee80211_key *,
442 				    const uint8_t mac[IEEE80211_ADDR_LEN]);
443 	void			(*iv_key_update_begin)(struct ieee80211vap *);
444 	void			(*iv_key_update_end)(struct ieee80211vap *);
445 
446 	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
447 	void			*iv_ec;		/* private auth state */
448 
449 	const struct ieee80211_aclator *iv_acl;	/* acl glue */
450 	void			*iv_as;		/* private aclator state */
451 
452 	const struct ieee80211_ratectl *iv_rate;
453 	void			*iv_rs;		/* private ratectl state */
454 
455 	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
456 	struct ieee80211_mesh_state *iv_mesh;	/* MBSS state */
457 	struct ieee80211_hwmp_state *iv_hwmp;	/* HWMP state */
458 
459 	/* operate-mode detach hook */
460 	void			(*iv_opdetach)(struct ieee80211vap *);
461 	/* receive processing */
462 	int			(*iv_input)(struct ieee80211_node *,
463 				    struct mbuf *, int, int);
464 	void			(*iv_recv_mgmt)(struct ieee80211_node *,
465 				    struct mbuf *, int, int, int);
466 	void			(*iv_recv_ctl)(struct ieee80211_node *,
467 				    struct mbuf *, int);
468 	void			(*iv_deliver_data)(struct ieee80211vap *,
469 				    struct ieee80211_node *, struct mbuf *);
470 #if 0
471 	/* send processing */
472 	int			(*iv_send_mgmt)(struct ieee80211_node *,
473 				     int, int);
474 #endif
475 	/* beacon miss processing */
476 	void			(*iv_bmiss)(struct ieee80211vap *);
477 	/* reset device state after 802.11 parameter/state change */
478 	int			(*iv_reset)(struct ieee80211vap *, u_long);
479 	/* [schedule] beacon frame update */
480 	void			(*iv_update_beacon)(struct ieee80211vap *, int);
481 	/* power save handling */
482 	void			(*iv_update_ps)(struct ieee80211vap *, int);
483 	int			(*iv_set_tim)(struct ieee80211_node *, int);
484 	/* state machine processing */
485 	int			(*iv_newstate)(struct ieee80211vap *,
486 				    enum ieee80211_state, int);
487 	/* 802.3 output method for raw frame xmit */
488 	int			(*iv_output)(struct ifnet *, struct mbuf *,
489 				    struct sockaddr *, struct route *);
490 	uint64_t		iv_spare[6];
491 };
492 MALLOC_DECLARE(M_80211_VAP);
493 
494 #define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
495 #define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
496 
497 /* ic_flags/iv_flags */
498 #define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
499 #define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
500 #define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
501 #define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
502 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
503 #define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
504 #define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
505 #define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
506 #define	IEEE80211_F_ASCAN	0x00000100	/* STATUS: active scan */
507 #define	IEEE80211_F_SIBSS	0x00000200	/* STATUS: start IBSS */
508 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
509 #define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
510 #define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
511 #define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
512 #define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
513 #define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
514 #define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
515 #define IEEE80211_F_TXPOW_FIXED	0x00010000	/* TX Power: fixed rate */
516 #define	IEEE80211_F_IBSSON	0x00020000	/* CONF: IBSS creation enable */
517 #define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
518 #define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
519 #define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
520 #define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
521 #define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
522 #define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
523 #define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
524 #define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
525 #define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
526 #define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
527 #define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
528 #define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
529 #define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
530 #define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
531 #define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
532 
533 #define	IEEE80211_F_BITS \
534 	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN\11ASCAN\12SIBSS" \
535 	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY\21TXPOW_FIXED" \
536 	"\22IBSSON\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
537 	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
538 	"\37DOTH\40DWDS"
539 
540 /* Atheros protocol-specific flags */
541 #define	IEEE80211_F_ATHEROS \
542 	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
543 /* Check if an Atheros capability was negotiated for use */
544 #define	IEEE80211_ATH_CAP(vap, ni, bit) \
545 	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
546 
547 /* ic_flags_ext/iv_flags_ext */
548 #define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
549 #define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
550 /* 0x00000006 reserved */
551 #define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
552 #define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
553 #define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
554 #define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
555 #define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
556 #define	IEEE80211_FEXT_4ADDR	 0x00000100	/* CONF: apply 4-addr encap */
557 #define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
558 #define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
559 #define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
560 #define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
561 #define	IEEE80211_FEXT_STATEWAIT 0x00002000	/* STATUS: awaiting state chg */
562 #define	IEEE80211_FEXT_REINIT	 0x00004000	/* STATUS: INIT state first */
563 #define	IEEE80211_FEXT_BPF	 0x00008000	/* STATUS: BPF tap present */
564 /* NB: immutable: should be set only when creating a vap */
565 #define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
566 #define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
567 #define	IEEE80211_FEXT_UNIQMAC	 0x00040000	/* CONF: user or computed mac */
568 
569 #define	IEEE80211_FEXT_BITS \
570 	"\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
571 	"\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
572 	"\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC"
573 
574 /* ic_flags_ht/iv_flags_ht */
575 #define	IEEE80211_FHT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
576 #define	IEEE80211_FHT_GF  	 0x00040000	/* CONF: Greenfield enabled */
577 #define	IEEE80211_FHT_HT	 0x00080000	/* CONF: HT supported */
578 #define	IEEE80211_FHT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
579 #define	IEEE80211_FHT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU rx supported */
580 #define	IEEE80211_FHT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
581 #define	IEEE80211_FHT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU rx supported */
582 #define	IEEE80211_FHT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
583 #define	IEEE80211_FHT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
584 #define	IEEE80211_FHT_SHORTGI20	 0x04000000	/* CONF: short GI in HT20 */
585 #define	IEEE80211_FHT_SHORTGI40	 0x08000000	/* CONF: short GI in HT40 */
586 #define	IEEE80211_FHT_HTCOMPAT 	 0x10000000	/* CONF: HT vendor OUI's */
587 #define	IEEE80211_FHT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
588 #define	IEEE80211_FHT_STBC_TX 	 0x40000000	/* CONF: STBC tx enabled */
589 #define	IEEE80211_FHT_STBC_RX 	 0x80000000	/* CONF: STBC rx enabled */
590 
591 #define	IEEE80211_FHT_BITS \
592 	"\20\1NONHT_PR" \
593 	"\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
594 	"\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
595 	"\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
596 
597 #define	IEEE80211_FVEN_BITS	"\20"
598 
599 /* ic_caps/iv_caps: device driver capabilities */
600 /* 0x2e available */
601 #define	IEEE80211_C_STA		0x00000001	/* CAPABILITY: STA available */
602 #define	IEEE80211_C_8023ENCAP	0x00000002	/* CAPABILITY: 802.3 encap */
603 #define	IEEE80211_C_FF		0x00000040	/* CAPABILITY: ATH FF avail */
604 #define	IEEE80211_C_TURBOP	0x00000080	/* CAPABILITY: ATH Turbo avail*/
605 #define	IEEE80211_C_IBSS	0x00000100	/* CAPABILITY: IBSS available */
606 #define	IEEE80211_C_PMGT	0x00000200	/* CAPABILITY: Power mgmt */
607 #define	IEEE80211_C_HOSTAP	0x00000400	/* CAPABILITY: HOSTAP avail */
608 #define	IEEE80211_C_AHDEMO	0x00000800	/* CAPABILITY: Old Adhoc Demo */
609 #define	IEEE80211_C_SWRETRY	0x00001000	/* CAPABILITY: sw tx retry */
610 #define	IEEE80211_C_TXPMGT	0x00002000	/* CAPABILITY: tx power mgmt */
611 #define	IEEE80211_C_SHSLOT	0x00004000	/* CAPABILITY: short slottime */
612 #define	IEEE80211_C_SHPREAMBLE	0x00008000	/* CAPABILITY: short preamble */
613 #define	IEEE80211_C_MONITOR	0x00010000	/* CAPABILITY: monitor mode */
614 #define	IEEE80211_C_DFS		0x00020000	/* CAPABILITY: DFS/radar avail*/
615 #define	IEEE80211_C_MBSS	0x00040000	/* CAPABILITY: MBSS available */
616 /* 0x7c0000 available */
617 #define	IEEE80211_C_WPA1	0x00800000	/* CAPABILITY: WPA1 avail */
618 #define	IEEE80211_C_WPA2	0x01000000	/* CAPABILITY: WPA2 avail */
619 #define	IEEE80211_C_WPA		0x01800000	/* CAPABILITY: WPA1+WPA2 avail*/
620 #define	IEEE80211_C_BURST	0x02000000	/* CAPABILITY: frame bursting */
621 #define	IEEE80211_C_WME		0x04000000	/* CAPABILITY: WME avail */
622 #define	IEEE80211_C_WDS		0x08000000	/* CAPABILITY: 4-addr support */
623 /* 0x10000000 reserved */
624 #define	IEEE80211_C_BGSCAN	0x20000000	/* CAPABILITY: bg scanning */
625 #define	IEEE80211_C_TXFRAG	0x40000000	/* CAPABILITY: tx fragments */
626 #define	IEEE80211_C_TDMA	0x80000000	/* CAPABILITY: TDMA avail */
627 /* XXX protection/barker? */
628 
629 #define	IEEE80211_C_OPMODE \
630 	(IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \
631 	 IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \
632 	 IEEE80211_C_TDMA | IEEE80211_C_MBSS)
633 
634 #define	IEEE80211_C_BITS \
635 	"\20\1STA\002803ENCAP\7FF\10TURBOP\11IBSS\12PMGT" \
636 	"\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \
637 	"\21MONITOR\22DFS\23MBSS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \
638 	"\37TXFRAG\40TDMA"
639 
640 /*
641  * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities
642  *
643  * NB: the low 16-bits are the 802.11 definitions, the upper
644  *     16-bits are used to define s/w/driver capabilities.
645  */
646 #define	IEEE80211_HTC_AMPDU	0x00010000	/* CAPABILITY: A-MPDU tx */
647 #define	IEEE80211_HTC_AMSDU	0x00020000	/* CAPABILITY: A-MSDU tx */
648 /* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
649 #define	IEEE80211_HTC_HT	0x00040000	/* CAPABILITY: HT operation */
650 #define	IEEE80211_HTC_SMPS	0x00080000	/* CAPABILITY: MIMO power save*/
651 #define	IEEE80211_HTC_RIFS	0x00100000	/* CAPABILITY: RIFS support */
652 #define	IEEE80211_HTC_RXUNEQUAL	0x00200000	/* CAPABILITY: RX unequal MCS */
653 #define	IEEE80211_HTC_RXMCS32	0x00400000	/* CAPABILITY: MCS32 support */
654 #define	IEEE80211_HTC_TXUNEQUAL	0x00800000	/* CAPABILITY: TX unequal MCS */
655 #define	IEEE80211_HTC_TXMCS32	0x01000000	/* CAPABILITY: MCS32 suport */
656 
657 #define	IEEE80211_C_HTCAP_BITS \
658 	"\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
659 	"\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS"
660 
661 void	ieee80211_ifattach(struct ieee80211com *,
662 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
663 void	ieee80211_ifdetach(struct ieee80211com *);
664 int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
665 		const char name[IFNAMSIZ], int unit,
666 		enum ieee80211_opmode opmode, int flags,
667 		const uint8_t bssid[IEEE80211_ADDR_LEN],
668 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
669 int	ieee80211_vap_attach(struct ieee80211vap *,
670 		ifm_change_cb_t, ifm_stat_cb_t);
671 void	ieee80211_vap_detach(struct ieee80211vap *);
672 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
673 		const struct ieee80211_channel *);
674 void	ieee80211_announce(struct ieee80211com *);
675 void	ieee80211_announce_channels(struct ieee80211com *);
676 void	ieee80211_drain(struct ieee80211com *);
677 void	ieee80211_media_init(struct ieee80211com *);
678 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
679 int	ieee80211_media_change(struct ifnet *);
680 void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
681 int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
682 int	ieee80211_rate2media(struct ieee80211com *, int,
683 		enum ieee80211_phymode);
684 int	ieee80211_media2rate(int);
685 int	ieee80211_mhz2ieee(u_int, u_int);
686 int	ieee80211_chan2ieee(struct ieee80211com *,
687 		const struct ieee80211_channel *);
688 u_int	ieee80211_ieee2mhz(u_int, u_int);
689 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
690 		int freq, int flags);
691 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
692 		int ieee, int flags);
693 int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
694 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
695 uint32_t ieee80211_mac_hash(const struct ieee80211com *,
696 		const uint8_t addr[IEEE80211_ADDR_LEN]);
697 
698 void	ieee80211_radiotap_attach(struct ieee80211com *,
699 	    struct ieee80211_radiotap_header *th, int tlen,
700 		uint32_t tx_radiotap,
701 	    struct ieee80211_radiotap_header *rh, int rlen,
702 		uint32_t rx_radiotap);
703 void	ieee80211_radiotap_detach(struct ieee80211com *);
704 void	ieee80211_radiotap_vattach(struct ieee80211vap *);
705 void	ieee80211_radiotap_vdetach(struct ieee80211vap *);
706 void	ieee80211_radiotap_chan_change(struct ieee80211com *);
707 void	ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
708 void	ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
709 void	ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
710 
711 static __inline int
712 ieee80211_radiotap_active(const struct ieee80211com *ic)
713 {
714 	return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
715 }
716 
717 static __inline int
718 ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
719 {
720 	return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
721 	    vap->iv_ic->ic_montaps != 0;
722 }
723 
724 /*
725  * Enqueue a task on the state thread.
726  */
727 static __inline void
728 ieee80211_runtask(struct ieee80211com *ic, struct task *task)
729 {
730 	taskqueue_enqueue(ic->ic_tq, task);
731 }
732 
733 /*
734  * Wait for a queued task to complete.
735  */
736 static __inline void
737 ieee80211_draintask(struct ieee80211com *ic, struct task *task)
738 {
739 	taskqueue_drain(ic->ic_tq, task);
740 }
741 
742 /*
743  * Key update synchronization methods.  XXX should not be visible.
744  */
745 static __inline void
746 ieee80211_key_update_begin(struct ieee80211vap *vap)
747 {
748 	vap->iv_key_update_begin(vap);
749 }
750 static __inline void
751 ieee80211_key_update_end(struct ieee80211vap *vap)
752 {
753 	vap->iv_key_update_end(vap);
754 }
755 
756 /*
757  * XXX these need to be here for IEEE80211_F_DATAPAD
758  */
759 
760 /*
761  * Return the space occupied by the 802.11 header and any
762  * padding required by the driver.  This works for a
763  * management or data frame.
764  */
765 static __inline int
766 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
767 {
768 	int size = ieee80211_hdrsize(data);
769 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
770 		size = roundup(size, sizeof(uint32_t));
771 	return size;
772 }
773 
774 /*
775  * Like ieee80211_hdrspace, but handles any type of frame.
776  */
777 static __inline int
778 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
779 {
780 	int size = ieee80211_anyhdrsize(data);
781 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
782 		size = roundup(size, sizeof(uint32_t));
783 	return size;
784 }
785 
786 /*
787  * Notify a vap that beacon state has been updated.
788  */
789 static __inline void
790 ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
791 {
792 	if (vap->iv_state == IEEE80211_S_RUN)
793 		vap->iv_update_beacon(vap, what);
794 }
795 
796 /*
797  * Calculate HT channel promotion flags for a channel.
798  * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
799  */
800 static __inline int
801 ieee80211_htchanflags(const struct ieee80211_channel *c)
802 {
803 	return IEEE80211_IS_CHAN_HT40(c) ?
804 	    IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
805 	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
806 }
807 
808 /*
809  * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
810  *
811  * The intent is that any problem in the net80211 layer can be
812  * diagnosed by inspecting the statistics (dumped by the wlanstats
813  * program) and/or the msgs generated by net80211.  Messages are
814  * broken into functional classes and can be controlled with the
815  * wlandebug program.  Certain of these msg groups are for facilities
816  * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
817  */
818 #define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
819 #define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
820 #define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
821 #define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
822 #define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
823 #define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
824 #define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
825 #define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
826 #define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
827 #define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
828 #define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
829 #define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
830 #define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
831 #define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
832 #define	IEEE80211_MSG_HWMP	0x00020000	/* hybrid mesh protocol */
833 #define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
834 #define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
835 #define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
836 #define	IEEE80211_MSG_MESH	0x00002000	/* mesh networking */
837 #define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
838 #define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
839 #define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
840 #define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
841 #define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
842 #define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
843 #define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
844 #define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
845 #define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
846 #define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
847 #define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
848 #define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
849 
850 #define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
851 
852 #define	IEEE80211_MSG_BITS \
853 	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
854 	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
855 	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
856 	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
857 
858 #ifdef IEEE80211_DEBUG
859 #define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
860 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
861 	if (ieee80211_msg(_vap, _m))					\
862 		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
863 } while (0)
864 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
865 	if (ieee80211_msg(_vap, _m))					\
866 		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
867 } while (0)
868 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
869 	if (ieee80211_msg(_vap, _m))					\
870 		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
871 } while (0)
872 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
873 	if (ieee80211_msg(_vap, _m))					\
874 		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
875 } while (0)
876 void	ieee80211_note(const struct ieee80211vap *, const char *, ...);
877 void	ieee80211_note_mac(const struct ieee80211vap *,
878 		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
879 void	ieee80211_note_frame(const struct ieee80211vap *,
880 		const struct ieee80211_frame *, const char *, ...);
881 #define	ieee80211_msg_debug(_vap) \
882 	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
883 #define	ieee80211_msg_dumppkts(_vap) \
884 	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
885 #define	ieee80211_msg_input(_vap) \
886 	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
887 #define	ieee80211_msg_radius(_vap) \
888 	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
889 #define	ieee80211_msg_dumpradius(_vap) \
890 	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
891 #define	ieee80211_msg_dumpradkeys(_vap) \
892 	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
893 #define	ieee80211_msg_scan(_vap) \
894 	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
895 #define	ieee80211_msg_assoc(_vap) \
896 	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
897 
898 /*
899  * Emit a debug message about discarding a frame or information
900  * element.  One format is for extracting the mac address from
901  * the frame header; the other is for when a header is not
902  * available or otherwise appropriate.
903  */
904 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
905 	if ((_vap)->iv_debug & (_m))					\
906 		ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
907 } while (0)
908 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
909 	if ((_vap)->iv_debug & (_m))					\
910 		ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
911 } while (0)
912 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
913 	if ((_vap)->iv_debug & (_m))					\
914 		ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
915 } while (0)
916 
917 void ieee80211_discard_frame(const struct ieee80211vap *,
918 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
919 void ieee80211_discard_ie(const struct ieee80211vap *,
920 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
921 void ieee80211_discard_mac(const struct ieee80211vap *,
922 	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
923 	const char *fmt, ...);
924 #else
925 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
926 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
927 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
928 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
929 #define	ieee80211_msg_dumppkts(_vap)	0
930 #define	ieee80211_msg(_vap, _m)		0
931 
932 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
933 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
934 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
935 #endif
936 
937 #endif /* _NET80211_IEEE80211_VAR_H_ */
938