xref: /freebsd/sys/net80211/ieee80211_var.h (revision 315ee00f)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2001 Atsushi Onoe
5  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 /* XXX TODO: cap this at 1, in case hz is not 1000 */
88 #define	IEEE80211_TU_TO_TICKS(x)(((uint64_t)(x) * 1024 * hz) / (1000 * 1000))
89 
90 /*
91  * Technically, vhtflags may be 0 /and/ 11ac is enabled.
92  * At some point ic should just grow a flag somewhere that
93  * says that VHT is supported - and then this macro can be
94  * changed.
95  */
96 #define	IEEE80211_CONF_VHT(ic)			\
97 	    ((ic)->ic_flags_ext & IEEE80211_FEXT_VHT)
98 
99 #define	IEEE80211_CONF_SEQNO_OFFLOAD(ic)	\
100 	    ((ic)->ic_flags_ext & IEEE80211_FEXT_SEQNO_OFFLOAD)
101 #define	IEEE80211_CONF_FRAG_OFFLOAD(ic)	\
102 	    ((ic)->ic_flags_ext & IEEE80211_FEXT_FRAG_OFFLOAD)
103 
104 /*
105  * 802.11 control state is split into a common portion that maps
106  * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
107  * that are bound to an ieee80211com instance and share a single
108  * underlying device.  Each VAP has a corresponding OS device
109  * entity through which traffic flows and that applications use
110  * for issuing ioctls, etc.
111  */
112 
113 /*
114  * Data common to one or more virtual AP's.  State shared by
115  * the underlying device and the net80211 layer is exposed here;
116  * e.g. device-specific callbacks.
117  */
118 struct ieee80211vap;
119 typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
120 
121 struct ieee80211_appie {
122 	uint16_t		ie_len;		/* size of ie_data */
123 	uint8_t			ie_data[];	/* user-specified IE's */
124 };
125 
126 struct ieee80211_tdma_param;
127 struct ieee80211_rate_table;
128 struct ieee80211_tx_ampdu;
129 struct ieee80211_rx_ampdu;
130 struct ieee80211_superg;
131 struct ieee80211_frame;
132 
133 struct net80211dump_methods;
134 
135 struct ieee80211com {
136 	void			*ic_softc;	/* driver softc */
137 	const char		*ic_name;	/* usually device name */
138 	ieee80211_com_lock_t	ic_comlock;	/* state update lock */
139 	ieee80211_tx_lock_t	ic_txlock;	/* ic/vap TX lock */
140 	ieee80211_ff_lock_t	ic_fflock;	/* stageq/ni_tx_superg lock */
141 	LIST_ENTRY(ieee80211com)   ic_next;	/* on global list */
142 	TAILQ_HEAD(, ieee80211vap) ic_vaps;	/* list of vap instances */
143 	int			ic_headroom;	/* driver tx headroom needs */
144 	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
145 	enum ieee80211_opmode	ic_opmode;	/* operation mode */
146 	struct callout		ic_inact;	/* inactivity processing */
147 	struct taskqueue	*ic_tq;		/* deferred state thread */
148 	struct task		ic_parent_task;	/* deferred parent processing */
149 	struct task		ic_promisc_task;/* deferred promisc update */
150 	struct task		ic_mcast_task;	/* deferred mcast update */
151 	struct task		ic_chan_task;	/* deferred channel change */
152 	struct task		ic_bmiss_task;	/* deferred beacon miss hndlr */
153 	struct task		ic_chw_task;	/* deferred HT CHW update */
154 	struct task		ic_restart_task; /* deferred device restart */
155 
156 	counter_u64_t		ic_ierrors;	/* input errors */
157 	counter_u64_t		ic_oerrors;	/* output errors */
158 
159 	uint32_t		ic_flags;	/* state flags */
160 	uint32_t		ic_flags_ext;	/* extended state flags */
161 	uint32_t		ic_flags_ht;	/* HT state flags */
162 	uint32_t		ic_flags_ven;	/* vendor state flags */
163 	uint32_t		ic_caps;	/* capabilities */
164 	uint32_t		ic_htcaps;	/* HT capabilities */
165 	uint32_t		ic_htextcaps;	/* HT extended capabilities */
166 	uint32_t		ic_cryptocaps;	/* crypto capabilities */
167 						/* set of mode capabilities */
168 	uint8_t			ic_modecaps[IEEE80211_MODE_BYTES];
169 	uint8_t			ic_promisc;	/* vap's needing promisc mode */
170 	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
171 	uint8_t			ic_nrunning;	/* vap's marked running */
172 	uint8_t			ic_curmode;	/* current mode */
173 	uint8_t			ic_macaddr[IEEE80211_ADDR_LEN];
174 	uint16_t		ic_bintval;	/* beacon interval */
175 	uint16_t		ic_lintval;	/* listen interval */
176 	uint16_t		ic_holdover;	/* PM hold over duration */
177 	uint16_t		ic_txpowlimit;	/* global tx power limit */
178 	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
179 	struct ieee80211_htrateset ic_sup_htrates;
180 
181 	/*
182 	 * Channel state:
183 	 *
184 	 * ic_channels is the set of available channels for the device;
185 	 *    it is setup by the driver
186 	 * ic_nchans is the number of valid entries in ic_channels
187 	 * ic_chan_avail is a bit vector of these channels used to check
188 	 *    whether a channel is available w/o searching the channel table.
189 	 * ic_chan_active is a (potentially) constrained subset of
190 	 *    ic_chan_avail that reflects any mode setting or user-specified
191 	 *    limit on the set of channels to use/scan
192 	 * ic_curchan is the current channel the device is set to; it may
193 	 *    be different from ic_bsschan when we are off-channel scanning
194 	 *    or otherwise doing background work
195 	 * ic_bsschan is the channel selected for operation; it may
196 	 *    be undefined (IEEE80211_CHAN_ANYC)
197 	 * ic_prevchan is a cached ``previous channel'' used to optimize
198 	 *    lookups when switching back+forth between two channels
199 	 *    (e.g. for dynamic turbo)
200 	 */
201 	int			ic_nchans;	/* # entries in ic_channels */
202 	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
203 	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
204 	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
205 	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
206 	struct ieee80211_channel *ic_curchan;	/* current channel */
207 	const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
208 	struct ieee80211_channel *ic_bsschan;	/* bss channel */
209 	struct ieee80211_channel *ic_prevchan;	/* previous channel */
210 	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
211 	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
212 	struct ieee80211_channel *ic_countryie_chan;
213 
214 	/* 802.11h/DFS state */
215 	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
216 	short			ic_csa_mode;	/* mode for doing CSA */
217 	short			ic_csa_count;	/* count for doing CSA */
218 	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
219 
220 	struct ieee80211_scan_state *ic_scan;	/* scan state */
221 	struct ieee80211_scan_methods *ic_scan_methods;	/* scan methods */
222 	int			ic_lastdata;	/* time of last data frame */
223 	int			ic_lastscan;	/* time last scan completed */
224 
225 	/* NB: this is the union of all vap stations/neighbors */
226 	int			ic_max_keyix;	/* max h/w key index */
227 	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
228 	struct ieee80211_ageq	ic_stageq;	/* frame staging queue */
229 	uint32_t		ic_hash_key;	/* random key for mac hash */
230 
231 	/* XXX multi-bss: split out common/vap parts */
232 	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
233 
234 	/* Protection mode for net80211 driven channel NICs */
235 	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
236 	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
237 	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
238 
239 	uint8_t			ic_rxstream;    /* # RX streams */
240 	uint8_t			ic_txstream;    /* # TX streams */
241 
242 	/* VHT information */
243 	uint32_t		ic_vhtcaps;	/* VHT capabilities */
244 	uint32_t		ic_vhtextcaps;	/* VHT extended capabilities (TODO) */
245 	struct ieee80211_vht_mcs_info	ic_vht_mcsinfo; /* Support TX/RX VHT MCS */
246 	uint32_t		ic_flags_vht;	/* VHT state flags */
247 	uint32_t		ic_vht_spare[3];
248 
249 	/* optional state for Atheros SuperG protocol extensions */
250 	struct ieee80211_superg	*ic_superg;
251 
252 	/* radiotap handling */
253 	struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
254 	void			*ic_txchan;	/* channel state in ic_th */
255 	struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
256 	void			*ic_rxchan;	/* channel state in ic_rh */
257 	int			ic_montaps;	/* active monitor mode taps */
258 
259 	/* virtual ap create/delete */
260 	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
261 				    const char [IFNAMSIZ], int,
262 				    enum ieee80211_opmode, int,
263 				    const uint8_t [IEEE80211_ADDR_LEN],
264 				    const uint8_t [IEEE80211_ADDR_LEN]);
265 	void			(*ic_vap_delete)(struct ieee80211vap *);
266 	/* device specific ioctls */
267 	int			(*ic_ioctl)(struct ieee80211com *,
268 				    u_long, void *);
269 	/* start/stop device */
270 	void			(*ic_parent)(struct ieee80211com *);
271 	/* operating mode attachment */
272 	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
273 	/* return hardware/radio capabilities */
274 	void			(*ic_getradiocaps)(struct ieee80211com *,
275 				    int, int *, struct ieee80211_channel []);
276 	/* check and/or prepare regdomain state change */
277 	int			(*ic_setregdomain)(struct ieee80211com *,
278 				    struct ieee80211_regdomain *,
279 				    int, struct ieee80211_channel []);
280 
281 	int			(*ic_set_quiet)(struct ieee80211_node *,
282 				    u_int8_t *quiet_elm);
283 
284 	/* regular transmit */
285 	int			(*ic_transmit)(struct ieee80211com *,
286 				    struct mbuf *);
287 	/* send/recv 802.11 management frame */
288 	int			(*ic_send_mgmt)(struct ieee80211_node *,
289 				     int, int);
290 	/* send raw 802.11 frame */
291 	int			(*ic_raw_xmit)(struct ieee80211_node *,
292 				    struct mbuf *,
293 				    const struct ieee80211_bpf_params *);
294 	/* update device state for 802.11 slot time change */
295 	void			(*ic_updateslot)(struct ieee80211com *);
296 	/* handle multicast state changes */
297 	void			(*ic_update_mcast)(struct ieee80211com *);
298 	/* handle promiscuous mode changes */
299 	void			(*ic_update_promisc)(struct ieee80211com *);
300 	/* new station association callback/notification */
301 	void			(*ic_newassoc)(struct ieee80211_node *, int);
302 	/* TDMA update notification */
303 	void			(*ic_tdma_update)(struct ieee80211_node *,
304 				    const struct ieee80211_tdma_param *, int);
305 
306 	/* Node state management */
307 
308 	/* Allocate a new node */
309 	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
310 				    const uint8_t [IEEE80211_ADDR_LEN]);
311 
312 	/* Driver node initialisation after net80211 setup */
313 	int			(*ic_node_init)(struct ieee80211_node *);
314 
315 	/* Driver node deallocation */
316 	void			(*ic_node_free)(struct ieee80211_node *);
317 
318 	/* Driver node state cleanup before deallocation */
319 	void			(*ic_node_cleanup)(struct ieee80211_node *);
320 
321 	void			(*ic_node_age)(struct ieee80211_node *);
322 	void			(*ic_node_drain)(struct ieee80211_node *);
323 	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
324 	void			(*ic_node_getsignal)(const struct ieee80211_node*,
325 				    int8_t *, int8_t *);
326 	void			(*ic_node_getmimoinfo)(
327 				    const struct ieee80211_node*,
328 				    struct ieee80211_mimo_info *);
329 	/* scanning support */
330 	void			(*ic_scan_start)(struct ieee80211com *);
331 	void			(*ic_scan_end)(struct ieee80211com *);
332 	void			(*ic_set_channel)(struct ieee80211com *);
333 	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
334 				    unsigned long);
335 	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
336 
337 	/*
338 	 * 802.11n ADDBA support.  A simple/generic implementation
339 	 * of A-MPDU tx aggregation is provided; the driver may
340 	 * override these methods to provide their own support.
341 	 * A-MPDU rx re-ordering happens automatically if the
342 	 * driver passes out-of-order frames to ieee80211_input
343 	 * from an assocated HT station.
344 	 */
345 	int			(*ic_recv_action)(struct ieee80211_node *,
346 				    const struct ieee80211_frame *,
347 				    const uint8_t *frm, const uint8_t *efrm);
348 	int			(*ic_send_action)(struct ieee80211_node *,
349 				    int category, int action, void *);
350 	/* check if A-MPDU should be enabled this station+ac */
351 	int			(*ic_ampdu_enable)(struct ieee80211_node *,
352 				    struct ieee80211_tx_ampdu *);
353 	/* start/stop doing A-MPDU tx aggregation for a station */
354 	int			(*ic_addba_request)(struct ieee80211_node *,
355 				    struct ieee80211_tx_ampdu *,
356 				    int dialogtoken, int baparamset,
357 				    int batimeout);
358 	int			(*ic_addba_response)(struct ieee80211_node *,
359 				    struct ieee80211_tx_ampdu *,
360 				    int status, int baparamset, int batimeout);
361 	void			(*ic_addba_stop)(struct ieee80211_node *,
362 				    struct ieee80211_tx_ampdu *);
363 	void			(*ic_addba_response_timeout)(struct ieee80211_node *,
364 				    struct ieee80211_tx_ampdu *);
365 	/* BAR response received */
366 	void			(*ic_bar_response)(struct ieee80211_node *,
367 				    struct ieee80211_tx_ampdu *, int status);
368 	/* start/stop doing A-MPDU rx processing for a station */
369 	int			(*ic_ampdu_rx_start)(struct ieee80211_node *,
370 				    struct ieee80211_rx_ampdu *, int baparamset,
371 				    int batimeout, int baseqctl);
372 	void			(*ic_ampdu_rx_stop)(struct ieee80211_node *,
373 				    struct ieee80211_rx_ampdu *);
374 
375 	/* The channel width has changed (20<->2040) */
376 	void			(*ic_update_chw)(struct ieee80211com *);
377 
378 	const struct debugnet80211_methods	*ic_debugnet_meth;
379 	uint64_t		ic_spare[7];
380 };
381 
382 struct ieee80211_aclator;
383 struct ieee80211_tdma_state;
384 struct ieee80211_mesh_state;
385 struct ieee80211_hwmp_state;
386 struct ieee80211_rx_histogram;
387 struct ieee80211_tx_histogram;
388 
389 struct ieee80211vap {
390 	struct ifmedia		iv_media;	/* interface media config */
391 	struct ifnet		*iv_ifp;	/* associated device */
392 	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
393 	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
394 	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
395 
396 	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
397 	struct ieee80211com	*iv_ic;		/* back ptr to common state */
398 	/* MAC address: ifp or ic */
399 	uint8_t			iv_myaddr[IEEE80211_ADDR_LEN];
400 	uint32_t		iv_debug;	/* debug msg flags */
401 	struct ieee80211_stats	iv_stats;	/* statistics */
402 
403 	uint32_t		iv_flags;	/* state flags */
404 	uint32_t		iv_flags_ext;	/* extended state flags */
405 	uint32_t		iv_flags_ht;	/* HT state flags */
406 	uint32_t		iv_flags_ven;	/* vendor state flags */
407 	uint32_t		iv_ifflags;	/* ifnet flags */
408 	uint32_t		iv_caps;	/* capabilities */
409 	uint32_t		iv_htcaps;	/* HT capabilities */
410 	uint32_t		iv_htextcaps;	/* HT extended capabilities */
411 	uint32_t		iv_com_state;	/* com usage / detached flag */
412 	enum ieee80211_opmode	iv_opmode;	/* operation mode */
413 	enum ieee80211_state	iv_state;	/* state machine state */
414 	enum ieee80211_state	iv_nstate;	/* pending state */
415 	int			iv_nstate_arg;	/* pending state arg */
416 	struct task		iv_nstate_task;	/* deferred state processing */
417 	struct task		iv_swbmiss_task;/* deferred iv_bmiss call */
418 	struct callout		iv_mgtsend;	/* mgmt frame response timer */
419 						/* inactivity timer settings */
420 	int			iv_inact_init;	/* setting for new station */
421 	int			iv_inact_auth;	/* auth but not assoc setting */
422 	int			iv_inact_run;	/* authorized setting */
423 	int			iv_inact_probe;	/* inactive probe time */
424 
425 	/* VHT flags */
426 	uint32_t		iv_flags_vht;	/* VHT state flags */
427 	uint32_t		iv_vhtcaps;	/* VHT capabilities */
428 	uint32_t		iv_vhtextcaps;	/* VHT extended capabilities (TODO) */
429 	struct ieee80211_vht_mcs_info	iv_vht_mcsinfo;
430 	uint32_t		iv_vht_spare[4];
431 
432 	int			iv_des_nssid;	/* # desired ssids */
433 	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
434 	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
435 	struct ieee80211_channel *iv_des_chan;	/* desired channel */
436 	uint16_t		iv_des_mode;	/* desired mode */
437 	int			iv_nicknamelen;	/* XXX junk */
438 	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
439 	u_int			iv_bgscanidle;	/* bg scan idle threshold */
440 	u_int			iv_bgscanintvl;	/* bg scan min interval */
441 	u_int			iv_scanvalid;	/* scan cache valid threshold */
442 	u_int			iv_scanreq_duration;
443 	u_int			iv_scanreq_mindwell;
444 	u_int			iv_scanreq_maxdwell;
445 	uint16_t		iv_scanreq_flags;/* held scan request params */
446 	uint8_t			iv_scanreq_nssid;
447 	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
448 	/* sta-mode roaming state */
449 	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
450 	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
451 
452 	uint8_t			iv_bmissthreshold;
453 	uint8_t			iv_bmiss_count;	/* current beacon miss count */
454 	int			iv_bmiss_max;	/* max bmiss before scan */
455 	uint16_t		iv_swbmiss_count;/* beacons in last period */
456 	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
457 	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
458 
459 	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
460 	int			iv_ampdu_density;/* A-MPDU density */
461 	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
462 	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
463 	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
464 
465 	struct ieee80211_beacon_offsets iv_bcn_off;
466 	uint32_t		*iv_aid_bitmap;	/* association id map */
467 	uint16_t		iv_max_aid;
468 	uint16_t		iv_sta_assoc;	/* stations associated */
469 	uint16_t		iv_ps_sta;	/* stations in power save */
470 	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
471 	uint16_t		iv_txseq;	/* mcast xmit seq# space */
472 	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
473 	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
474 	uint8_t			iv_dtim_period;	/* DTIM period */
475 	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
476 						/* set/unset aid pwrsav state */
477 	uint8_t			iv_quiet;	/* Quiet Element */
478 	uint8_t			iv_quiet_count;	/* constant count for Quiet Element */
479 	uint8_t			iv_quiet_count_value;	/* variable count for Quiet Element */
480 	uint8_t			iv_quiet_period;	/* period for Quiet Element */
481 	uint16_t		iv_quiet_duration;	/* duration for Quiet Element */
482 	uint16_t		iv_quiet_offset;	/* offset for Quiet Element */
483 	int			iv_csa_count;	/* count for doing CSA */
484 
485 	struct ieee80211_node	*iv_bss;	/* information for this node */
486 	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
487 	uint16_t		iv_rtsthreshold;
488 	uint16_t		iv_fragthreshold;
489 	int			iv_inact_timer;	/* inactivity timer wait */
490 	/* application-specified IE's to attach to mgt frames */
491 	struct ieee80211_appie	*iv_appie_beacon;
492 	struct ieee80211_appie	*iv_appie_probereq;
493 	struct ieee80211_appie	*iv_appie_proberesp;
494 	struct ieee80211_appie	*iv_appie_assocreq;
495 	struct ieee80211_appie	*iv_appie_assocresp;
496 	struct ieee80211_appie	*iv_appie_wpa;
497 	uint8_t			*iv_wpa_ie;
498 	uint8_t			*iv_rsn_ie;
499 
500 	/* Key management */
501 	uint16_t		iv_max_keyix;	/* max h/w key index */
502 	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
503 	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
504 	int			(*iv_key_alloc)(struct ieee80211vap *,
505 				    struct ieee80211_key *,
506 				    ieee80211_keyix *, ieee80211_keyix *);
507 	int			(*iv_key_delete)(struct ieee80211vap *,
508 				    const struct ieee80211_key *);
509 	int			(*iv_key_set)(struct ieee80211vap *,
510 				    const struct ieee80211_key *);
511 	void			(*iv_key_update_begin)(struct ieee80211vap *);
512 	void			(*iv_key_update_end)(struct ieee80211vap *);
513 	void			(*iv_update_deftxkey)(struct ieee80211vap *,
514 				    ieee80211_keyix deftxkey);
515 
516 	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
517 	void			*iv_ec;		/* private auth state */
518 
519 	const struct ieee80211_aclator *iv_acl;	/* acl glue */
520 	void			*iv_as;		/* private aclator state */
521 
522 	const struct ieee80211_ratectl *iv_rate;
523 	void			*iv_rs;		/* private ratectl state */
524 
525 	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
526 	struct ieee80211_mesh_state *iv_mesh;	/* MBSS state */
527 	struct ieee80211_hwmp_state *iv_hwmp;	/* HWMP state */
528 
529 	/* operate-mode detach hook */
530 	void			(*iv_opdetach)(struct ieee80211vap *);
531 	/* receive processing */
532 	int			(*iv_input)(struct ieee80211_node *,
533 				    struct mbuf *,
534 				    const struct ieee80211_rx_stats *,
535 				    int, int);
536 	void			(*iv_recv_mgmt)(struct ieee80211_node *,
537 				    struct mbuf *, int,
538 				    const struct ieee80211_rx_stats *,
539 				    int, int);
540 	void			(*iv_recv_ctl)(struct ieee80211_node *,
541 				    struct mbuf *, int);
542 	void			(*iv_deliver_data)(struct ieee80211vap *,
543 				    struct ieee80211_node *, struct mbuf *);
544 #if 0
545 	/* send processing */
546 	int			(*iv_send_mgmt)(struct ieee80211_node *,
547 				     int, int);
548 #endif
549 	/* beacon miss processing */
550 	void			(*iv_bmiss)(struct ieee80211vap *);
551 	/* reset device state after 802.11 parameter/state change */
552 	int			(*iv_reset)(struct ieee80211vap *, u_long);
553 	/* [schedule] beacon frame update */
554 	void			(*iv_update_beacon)(struct ieee80211vap *, int);
555 	/* power save handling */
556 	void			(*iv_update_ps)(struct ieee80211vap *, int);
557 	int			(*iv_set_tim)(struct ieee80211_node *, int);
558 	void			(*iv_node_ps)(struct ieee80211_node *, int);
559 	void			(*iv_sta_ps)(struct ieee80211vap *, int);
560 	void			(*iv_recv_pspoll)(struct ieee80211_node *,
561 				    struct mbuf *);
562 
563 	/* state machine processing */
564 	int			(*iv_newstate)(struct ieee80211vap *,
565 				    enum ieee80211_state, int);
566 	struct ieee80211_node *	(*iv_update_bss)(struct ieee80211vap *,
567 				    struct ieee80211_node *);
568 
569 	/* 802.3 output method for raw frame xmit */
570 	int			(*iv_output)(struct ifnet *, struct mbuf *,
571 				    const struct sockaddr *, struct route *);
572 
573 	int			(*iv_wme_update)(struct ieee80211vap *,
574 				    const struct wmeParams *wme_params);
575 	struct task		iv_wme_task;	/* deferred VAP WME update */
576 
577 	/* associated state; protection mode */
578 	enum ieee80211_protmode	iv_protmode;	/* 802.11g protection mode */
579 	enum ieee80211_protmode	iv_htprotmode;	/* HT protection mode */
580 	uint8_t			iv_curhtprotmode;/* HTINFO bss state */
581 
582 	uint16_t		iv_nonerpsta;	/* # non-ERP stations */
583 	uint16_t		iv_longslotsta;	/* # long slot time stations */
584 	uint16_t		iv_ht_sta_assoc;/* HT stations associated */
585 	uint16_t		iv_ht40_sta_assoc;/* HT40 stations associated */
586 	int			iv_lastnonerp;	/* last time non-ERP sta noted*/
587 	int			iv_lastnonht;	/* last time non-HT sta noted */
588 
589 	/* update device state for 802.11 slot time change */
590 	void			(*iv_updateslot)(struct ieee80211vap *);
591 	struct task		iv_slot_task;	/* deferred slot time update */
592 
593 	struct task		iv_erp_protmode_task;	/* deferred ERP protmode update */
594 	void			(*iv_erp_protmode_update)(struct ieee80211vap *);
595 
596 	struct task		iv_preamble_task;	/* deferred short/barker preamble update */
597 	void			(*iv_preamble_update)(struct ieee80211vap *);
598 
599 	struct task		iv_ht_protmode_task;	/* deferred HT protmode update */
600 	void			(*iv_ht_protmode_update)(struct ieee80211vap *);
601 
602 	/* per-vap U-APSD state */
603 	uint8_t			iv_uapsdinfo;	/* sta mode QoS Info flags */
604 
605 	/* Optional transmit/receive histogram statistics */
606 	struct ieee80211_rx_histogram	*rx_histogram;
607 	struct ieee80211_tx_histogram	*tx_histogram;
608 
609 	uint64_t		iv_spare[6];
610 };
611 MALLOC_DECLARE(M_80211_VAP);
612 
613 #define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
614 #define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
615 
616 /* ic_flags/iv_flags */
617 #define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
618 #define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
619 #define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
620 #define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
621 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
622 #define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
623 #define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
624 #define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
625 /* 0x00000300 reserved */
626 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
627 #define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
628 #define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
629 #define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
630 #define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
631 #define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
632 #define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
633 /* 0x00030000 reserved */
634 #define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
635 #define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
636 #define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
637 #define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
638 #define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
639 #define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
640 #define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
641 #define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
642 #define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
643 #define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
644 #define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
645 #define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
646 #define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
647 #define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
648 #define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
649 
650 #define	IEEE80211_F_BITS \
651 	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN" \
652 	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY" \
653 	"\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
654 	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
655 	"\37DOTH\40DWDS"
656 
657 /* Atheros protocol-specific flags */
658 #define	IEEE80211_F_ATHEROS \
659 	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
660 /* Check if an Atheros capability was negotiated for use */
661 #define	IEEE80211_ATH_CAP(vap, ni, bit) \
662 	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
663 
664 /* ic_flags_ext/iv_flags_ext */
665 #define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
666 #define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
667 /* 0x00000006 reserved */
668 #define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
669 #define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
670 #define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
671 #define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
672 #define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
673 #define	IEEE80211_FEXT_4ADDR	 0x00000100	/* CONF: apply 4-addr encap */
674 #define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
675 #define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
676 #define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
677 #define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
678 #define	IEEE80211_FEXT_STATEWAIT 0x00002000	/* STATUS: awaiting state chg */
679 #define	IEEE80211_FEXT_REINIT	 0x00004000	/* STATUS: INIT state first */
680 #define	IEEE80211_FEXT_BPF	 0x00008000	/* STATUS: BPF tap present */
681 /* NB: immutable: should be set only when creating a vap */
682 #define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
683 #define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
684 #define	IEEE80211_FEXT_UNIQMAC	 0x00040000	/* CONF: user or computed mac */
685 #define	IEEE80211_FEXT_SCAN_OFFLOAD	0x00080000	/* CONF: scan is fully offloaded */
686 #define	IEEE80211_FEXT_SEQNO_OFFLOAD	0x00100000	/* CONF: driver does seqno insertion/allocation */
687 #define	IEEE80211_FEXT_FRAG_OFFLOAD	0x00200000	/* CONF: hardware does 802.11 fragmentation + assignment */
688 #define	IEEE80211_FEXT_VHT	0x00400000	/* CONF: VHT support */
689 #define	IEEE80211_FEXT_QUIET_IE	0x00800000	/* STATUS: quiet IE in a beacon has been added */
690 #define	IEEE80211_FEXT_UAPSD	0x01000000	/* CONF: enable U-APSD */
691 
692 #define	IEEE80211_FEXT_BITS \
693 	"\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
694 	"\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
695 	"\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC\24SCAN_OFFLOAD\25SEQNO_OFFLOAD" \
696 	    "\26FRAG_OFFLOAD\27VHT" \
697 	"\30QUIET_IE\31UAPSD"
698 
699 /* ic_flags_ht/iv_flags_ht */
700 #define	IEEE80211_FHT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
701 #define	IEEE80211_FHT_LDPC_TX	 0x00010000	/* CONF: LDPC tx enabled */
702 #define	IEEE80211_FHT_LDPC_RX	 0x00020000	/* CONF: LDPC rx enabled */
703 #define	IEEE80211_FHT_GF  	 0x00040000	/* CONF: Greenfield enabled */
704 #define	IEEE80211_FHT_HT	 0x00080000	/* CONF: HT supported */
705 #define	IEEE80211_FHT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
706 #define	IEEE80211_FHT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU rx supported */
707 #define	IEEE80211_FHT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
708 #define	IEEE80211_FHT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU rx supported */
709 #define	IEEE80211_FHT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
710 #define	IEEE80211_FHT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
711 #define	IEEE80211_FHT_SHORTGI20	 0x04000000	/* CONF: short GI in HT20 */
712 #define	IEEE80211_FHT_SHORTGI40	 0x08000000	/* CONF: short GI in HT40 */
713 #define	IEEE80211_FHT_HTCOMPAT 	 0x10000000	/* CONF: HT vendor OUI's */
714 #define	IEEE80211_FHT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
715 #define	IEEE80211_FHT_STBC_TX 	 0x40000000	/* CONF: STBC tx enabled */
716 #define	IEEE80211_FHT_STBC_RX 	 0x80000000	/* CONF: STBC rx enabled */
717 
718 #define	IEEE80211_FHT_BITS \
719 	"\20\1NONHT_PR" \
720 	"\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
721 	"\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
722 	"\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
723 
724 #define	IEEE80211_FVEN_BITS	"\20"
725 
726 #define	IEEE80211_FVHT_VHT	0x000000001	/* CONF: VHT supported */
727 #define	IEEE80211_FVHT_USEVHT40	0x000000002	/* CONF: Use VHT40 */
728 #define	IEEE80211_FVHT_USEVHT80	0x000000004	/* CONF: Use VHT80 */
729 #define	IEEE80211_FVHT_USEVHT160	0x000000008	/* CONF: Use VHT160 */
730 #define	IEEE80211_FVHT_USEVHT80P80	0x000000010	/* CONF: Use VHT 80+80 */
731 #define	IEEE80211_FVHT_MASK						\
732 	(IEEE80211_FVHT_VHT | IEEE80211_FVHT_USEVHT40 |			\
733 	IEEE80211_FVHT_USEVHT80 | IEEE80211_FVHT_USEVHT160 |		\
734 	IEEE80211_FVHT_USEVHT80P80)
735 #define	IEEE80211_VFHT_BITS \
736 	"\20\1VHT\2VHT40\3VHT80\4VHT160\5VHT80P80"
737 
738 #define	IEEE80211_COM_DETACHED	0x00000001	/* ieee80211_ifdetach called */
739 #define	IEEE80211_COM_REF_ADD	0x00000002	/* add / remove reference */
740 #define	IEEE80211_COM_REF	0xfffffffe	/* reference counter bits */
741 #define	IEEE80211_COM_REF_S	1
742 #define	IEEE80211_COM_REF_MAX	(IEEE80211_COM_REF >> IEEE80211_COM_REF_S)
743 
744 int	ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
745 void	ieee80211_ifattach(struct ieee80211com *);
746 void	ieee80211_ifdetach(struct ieee80211com *);
747 int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
748 		const char name[IFNAMSIZ], int unit,
749 		enum ieee80211_opmode opmode, int flags,
750 		const uint8_t bssid[IEEE80211_ADDR_LEN]);
751 int	ieee80211_vap_attach(struct ieee80211vap *,
752 		ifm_change_cb_t, ifm_stat_cb_t,
753 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
754 void	ieee80211_vap_detach(struct ieee80211vap *);
755 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
756 		const struct ieee80211_channel *);
757 const struct ieee80211_htrateset *ieee80211_get_suphtrates(
758 		struct ieee80211com *, const struct ieee80211_channel *);
759 void	ieee80211_announce(struct ieee80211com *);
760 void	ieee80211_announce_channels(struct ieee80211com *);
761 void	ieee80211_drain(struct ieee80211com *);
762 void	ieee80211_chan_init(struct ieee80211com *);
763 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
764 struct ieee80211com *ieee80211_find_com(const char *name);
765 typedef void ieee80211_com_iter_func(void *, struct ieee80211com *);
766 void	ieee80211_iterate_coms(ieee80211_com_iter_func *, void *);
767 int	ieee80211_media_change(struct ifnet *);
768 void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
769 int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
770 int	ieee80211_rate2media(struct ieee80211com *, int,
771 		enum ieee80211_phymode);
772 int	ieee80211_media2rate(int);
773 int	ieee80211_mhz2ieee(u_int, u_int);
774 int	ieee80211_chan2ieee(struct ieee80211com *,
775 		const struct ieee80211_channel *);
776 u_int	ieee80211_ieee2mhz(u_int, u_int);
777 int	ieee80211_add_channel_cbw(struct ieee80211_channel[], int, int *,
778 	    uint8_t, uint16_t, int8_t, uint32_t, const uint8_t[], int);
779 int	ieee80211_add_channel(struct ieee80211_channel[], int, int *,
780 	    uint8_t, uint16_t, int8_t, uint32_t, const uint8_t[]);
781 int	ieee80211_add_channel_ht40(struct ieee80211_channel[], int, int *,
782 	    uint8_t, int8_t, uint32_t);
783 uint32_t ieee80211_get_channel_center_freq(const struct ieee80211_channel *);
784 uint32_t ieee80211_get_channel_center_freq1(const struct ieee80211_channel *);
785 uint32_t ieee80211_get_channel_center_freq2(const struct ieee80211_channel *);
786 #define	NET80211_CBW_FLAG_HT40		0x01
787 #define	NET80211_CBW_FLAG_VHT80		0x02
788 #define	NET80211_CBW_FLAG_VHT160	0x04
789 #define	NET80211_CBW_FLAG_VHT80P80	0x08
790 int	ieee80211_add_channel_list_2ghz(struct ieee80211_channel[], int, int *,
791 	    const uint8_t[], int, const uint8_t[], int);
792 int	ieee80211_add_channels_default_2ghz(struct ieee80211_channel[], int,
793 	    int *, const uint8_t[], int);
794 int	ieee80211_add_channel_list_5ghz(struct ieee80211_channel[], int, int *,
795 	    const uint8_t[], int, const uint8_t[], int);
796 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
797 		int freq, int flags);
798 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
799 		int ieee, int flags);
800 struct ieee80211_channel *ieee80211_lookup_channel_rxstatus(struct ieee80211vap *,
801 		const struct ieee80211_rx_stats *);
802 int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
803 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
804 uint32_t ieee80211_mac_hash(const struct ieee80211com *,
805 		const uint8_t addr[IEEE80211_ADDR_LEN]);
806 char	ieee80211_channel_type_char(const struct ieee80211_channel *c);
807 
808 #define	ieee80211_get_current_channel(_ic)	((_ic)->ic_curchan)
809 #define	ieee80211_get_home_channel(_ic)		((_ic)->ic_bsschan)
810 #define	ieee80211_get_vap_desired_channel(_iv)	((_iv)->iv_des_chan)
811 
812 void	ieee80211_radiotap_attach(struct ieee80211com *,
813 	    struct ieee80211_radiotap_header *th, int tlen,
814 		uint32_t tx_radiotap,
815 	    struct ieee80211_radiotap_header *rh, int rlen,
816 		uint32_t rx_radiotap);
817 void	ieee80211_radiotap_attachv(struct ieee80211com *,
818 	    struct ieee80211_radiotap_header *th,
819 	    int tlen, int n_tx_v, uint32_t tx_radiotap,
820 	    struct ieee80211_radiotap_header *rh,
821 	    int rlen, int n_rx_v, uint32_t rx_radiotap);
822 void	ieee80211_radiotap_detach(struct ieee80211com *);
823 void	ieee80211_radiotap_vattach(struct ieee80211vap *);
824 void	ieee80211_radiotap_vdetach(struct ieee80211vap *);
825 void	ieee80211_radiotap_chan_change(struct ieee80211com *);
826 void	ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
827 void	ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
828 void	ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
829 
830 static __inline int
831 ieee80211_radiotap_active(const struct ieee80211com *ic)
832 {
833 	return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
834 }
835 
836 static __inline int
837 ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
838 {
839 	return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
840 	    vap->iv_ic->ic_montaps != 0;
841 }
842 
843 /*
844  * Enqueue a task on the state thread.
845  */
846 static __inline void
847 ieee80211_runtask(struct ieee80211com *ic, struct task *task)
848 {
849 	taskqueue_enqueue(ic->ic_tq, task);
850 }
851 
852 /*
853  * Wait for a queued task to complete.
854  */
855 static __inline void
856 ieee80211_draintask(struct ieee80211com *ic, struct task *task)
857 {
858 	taskqueue_drain(ic->ic_tq, task);
859 }
860 
861 /*
862  * Key update synchronization methods.  XXX should not be visible.
863  */
864 static __inline void
865 ieee80211_key_update_begin(struct ieee80211vap *vap)
866 {
867 	vap->iv_key_update_begin(vap);
868 }
869 static __inline void
870 ieee80211_key_update_end(struct ieee80211vap *vap)
871 {
872 	vap->iv_key_update_end(vap);
873 }
874 
875 /*
876  * XXX these need to be here for IEEE80211_F_DATAPAD
877  */
878 
879 /*
880  * Return the space occupied by the 802.11 header and any
881  * padding required by the driver.  This works for a
882  * management or data frame.
883  */
884 static __inline int
885 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
886 {
887 	int size = ieee80211_hdrsize(data);
888 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
889 		size = roundup(size, sizeof(uint32_t));
890 	return size;
891 }
892 
893 /*
894  * Like ieee80211_hdrspace, but handles any type of frame.
895  */
896 static __inline int
897 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
898 {
899 	int size = ieee80211_anyhdrsize(data);
900 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
901 		size = roundup(size, sizeof(uint32_t));
902 	return size;
903 }
904 
905 /*
906  * Notify a vap that beacon state has been updated.
907  */
908 static __inline void
909 ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
910 {
911 	if (vap->iv_state == IEEE80211_S_RUN)
912 		vap->iv_update_beacon(vap, what);
913 }
914 
915 /*
916  * Calculate HT channel promotion flags for a channel.
917  * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
918  */
919 static __inline int
920 ieee80211_htchanflags(const struct ieee80211_channel *c)
921 {
922 	return IEEE80211_IS_CHAN_HT40(c) ?
923 	    IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
924 	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
925 }
926 
927 /*
928  * Calculate VHT channel promotion flags for a channel.
929  * XXX belongs in ieee80211_vht.h but needs IEEE80211_FVHT_*
930  */
931 static __inline int
932 ieee80211_vhtchanflags(const struct ieee80211_channel *c)
933 {
934 
935 	if (IEEE80211_IS_CHAN_VHT160(c))
936 		return IEEE80211_FVHT_USEVHT160;
937 	if (IEEE80211_IS_CHAN_VHT80P80(c))
938 		return IEEE80211_FVHT_USEVHT80P80;
939 	if (IEEE80211_IS_CHAN_VHT80(c))
940 		return IEEE80211_FVHT_USEVHT80;
941 	if (IEEE80211_IS_CHAN_VHT40(c))
942 		return IEEE80211_FVHT_USEVHT40;
943 	if (IEEE80211_IS_CHAN_VHT(c))
944 		return IEEE80211_FVHT_VHT;
945 	return (0);
946 }
947 
948 /*
949  * Fetch the current TX power (cap) for the given node.
950  *
951  * This includes the node and ic/vap TX power limit as needed,
952  * but it doesn't take into account any per-rate limit.
953  */
954 static __inline uint16_t
955 ieee80211_get_node_txpower(struct ieee80211_node *ni)
956 {
957 	struct ieee80211com *ic = ni->ni_ic;
958 	uint16_t txpower;
959 
960 	txpower = ni->ni_txpower;
961 	txpower = MIN(txpower, ic->ic_txpowlimit);
962 	if (ic->ic_curchan != NULL) {
963 		txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
964 		txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
965 	}
966 
967 	return (txpower);
968 }
969 
970 /*
971  * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
972  *
973  * The intent is that any problem in the net80211 layer can be
974  * diagnosed by inspecting the statistics (dumped by the wlanstats
975  * program) and/or the msgs generated by net80211.  Messages are
976  * broken into functional classes and can be controlled with the
977  * wlandebug program.  Certain of these msg groups are for facilities
978  * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
979  */
980 #define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
981 #define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
982 #define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
983 #define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
984 #define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
985 #define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
986 #define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
987 #define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
988 #define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
989 #define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
990 #define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
991 #define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
992 #define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
993 #define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
994 #define	IEEE80211_MSG_HWMP	0x00020000	/* hybrid mesh protocol */
995 #define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
996 #define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
997 #define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
998 #define	IEEE80211_MSG_MESH	0x00002000	/* mesh networking */
999 #define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
1000 #define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
1001 #define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
1002 #define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
1003 #define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
1004 #define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
1005 #define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
1006 #define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
1007 #define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
1008 #define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
1009 #define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
1010 #define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
1011 
1012 #define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
1013 
1014 #define	IEEE80211_MSG_BITS \
1015 	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
1016 	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
1017 	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
1018 	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
1019 
1020 /* Helper macros unified. */
1021 #define	_IEEE80211_MASKSHIFT(_v, _f)	(((_v) & _f) >> _f##_S)
1022 #define	_IEEE80211_SHIFTMASK(_v, _f)	(((_v) << _f##_S) & _f)
1023 
1024 #ifdef IEEE80211_DEBUG
1025 #define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
1026 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
1027 	if (ieee80211_msg(_vap, _m))					\
1028 		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
1029 } while (0)
1030 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
1031 	if (ieee80211_msg(_vap, _m))					\
1032 		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
1033 } while (0)
1034 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
1035 	if (ieee80211_msg(_vap, _m))					\
1036 		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
1037 } while (0)
1038 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
1039 	if (ieee80211_msg(_vap, _m))					\
1040 		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
1041 } while (0)
1042 void	ieee80211_note(const struct ieee80211vap *, const char *, ...);
1043 void	ieee80211_note_mac(const struct ieee80211vap *,
1044 		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
1045 void	ieee80211_note_frame(const struct ieee80211vap *,
1046 		const struct ieee80211_frame *, const char *, ...);
1047 #define	ieee80211_msg_debug(_vap) \
1048 	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
1049 #define	ieee80211_msg_dumppkts(_vap) \
1050 	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
1051 #define	ieee80211_msg_input(_vap) \
1052 	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
1053 #define	ieee80211_msg_radius(_vap) \
1054 	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
1055 #define	ieee80211_msg_dumpradius(_vap) \
1056 	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
1057 #define	ieee80211_msg_dumpradkeys(_vap) \
1058 	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
1059 #define	ieee80211_msg_scan(_vap) \
1060 	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
1061 #define	ieee80211_msg_assoc(_vap) \
1062 	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
1063 
1064 /*
1065  * Emit a debug message about discarding a frame or information
1066  * element.  One format is for extracting the mac address from
1067  * the frame header; the other is for when a header is not
1068  * available or otherwise appropriate.
1069  */
1070 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
1071 	if ((_vap)->iv_debug & (_m))					\
1072 		ieee80211_discard_frame(_vap, _wh, _type,		\
1073 		   "%s:%d: " _fmt, __func__, __LINE__, __VA_ARGS__);	\
1074 } while (0)
1075 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
1076 	if ((_vap)->iv_debug & (_m))					\
1077 		ieee80211_discard_ie(_vap, _wh, _type,			\
1078 		    "%s:%d: " _fmt, __func__, __LINE__, __VA_ARGS__);	\
1079 } while (0)
1080 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
1081 	if ((_vap)->iv_debug & (_m))					\
1082 		ieee80211_discard_mac(_vap, _mac, _type,		\
1083 		    "%s:%d: " _fmt, __func__, __LINE__, __VA_ARGS__);	\
1084 } while (0)
1085 
1086 void ieee80211_discard_frame(const struct ieee80211vap *,
1087 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
1088 void ieee80211_discard_ie(const struct ieee80211vap *,
1089 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
1090 void ieee80211_discard_mac(const struct ieee80211vap *,
1091 	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
1092 	const char *fmt, ...);
1093 #else
1094 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
1095 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
1096 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
1097 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
1098 #define	ieee80211_msg_dumppkts(_vap)	0
1099 #define	ieee80211_msg(_vap, _m)		0
1100 
1101 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
1102 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
1103 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
1104 #endif
1105 
1106 #endif /* _NET80211_IEEE80211_VAR_H_ */
1107