xref: /freebsd/sys/net80211/ieee80211_var.h (revision 49b49cda41feabe3439f7318e8bf40e3896c7bf4)
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 /* XXX TODO: cap this at 1, in case hz is not 1000 */
88 #define	IEEE80211_TU_TO_TICKS(x)(((x) * 1024 * hz) / (1000 * 1000))
89 
90 /*
91  * 802.11 control state is split into a common portion that maps
92  * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
93  * that are bound to an ieee80211com instance and share a single
94  * underlying device.  Each VAP has a corresponding OS device
95  * entity through which traffic flows and that applications use
96  * for issuing ioctls, etc.
97  */
98 
99 /*
100  * Data common to one or more virtual AP's.  State shared by
101  * the underlying device and the net80211 layer is exposed here;
102  * e.g. device-specific callbacks.
103  */
104 struct ieee80211vap;
105 typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
106 
107 struct ieee80211_appie {
108 	uint16_t		ie_len;		/* size of ie_data */
109 	uint8_t			ie_data[];	/* user-specified IE's */
110 };
111 
112 struct ieee80211_tdma_param;
113 struct ieee80211_rate_table;
114 struct ieee80211_tx_ampdu;
115 struct ieee80211_rx_ampdu;
116 struct ieee80211_superg;
117 struct ieee80211_frame;
118 
119 struct ieee80211com {
120 	void			*ic_softc;	/* driver softc */
121 	const char		*ic_name;	/* usually device name */
122 	ieee80211_com_lock_t	ic_comlock;	/* state update lock */
123 	ieee80211_tx_lock_t	ic_txlock;	/* ic/vap TX lock */
124 	LIST_ENTRY(ieee80211com)   ic_next;	/* on global list */
125 	TAILQ_HEAD(, ieee80211vap) ic_vaps;	/* list of vap instances */
126 	int			ic_headroom;	/* driver tx headroom needs */
127 	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
128 	enum ieee80211_opmode	ic_opmode;	/* operation mode */
129 	struct callout		ic_inact;	/* inactivity processing */
130 	struct taskqueue	*ic_tq;		/* deferred state thread */
131 	struct task		ic_parent_task;	/* deferred parent processing */
132 	struct task		ic_promisc_task;/* deferred promisc update */
133 	struct task		ic_mcast_task;	/* deferred mcast update */
134 	struct task		ic_chan_task;	/* deferred channel change */
135 	struct task		ic_bmiss_task;	/* deferred beacon miss hndlr */
136 	struct task		ic_chw_task;	/* deferred HT CHW update */
137 	struct task		ic_wme_task;	/* deferred WME update */
138 	struct task		ic_restart_task; /* deferred device restart */
139 
140 	counter_u64_t		ic_ierrors;	/* input errors */
141 	counter_u64_t		ic_oerrors;	/* output errors */
142 
143 	uint32_t		ic_flags;	/* state flags */
144 	uint32_t		ic_flags_ext;	/* extended state flags */
145 	uint32_t		ic_flags_ht;	/* HT state flags */
146 	uint32_t		ic_flags_ven;	/* vendor state flags */
147 	uint32_t		ic_caps;	/* capabilities */
148 	uint32_t		ic_htcaps;	/* HT capabilities */
149 	uint32_t		ic_htextcaps;	/* HT extended capabilities */
150 	uint32_t		ic_cryptocaps;	/* crypto capabilities */
151 	uint8_t			ic_modecaps[2];	/* set of mode capabilities */
152 	uint8_t			ic_promisc;	/* vap's needing promisc mode */
153 	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
154 	uint8_t			ic_nrunning;	/* vap's marked running */
155 	uint8_t			ic_curmode;	/* current mode */
156 	uint8_t			ic_macaddr[IEEE80211_ADDR_LEN];
157 	uint16_t		ic_bintval;	/* beacon interval */
158 	uint16_t		ic_lintval;	/* listen interval */
159 	uint16_t		ic_holdover;	/* PM hold over duration */
160 	uint16_t		ic_txpowlimit;	/* global tx power limit */
161 	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
162 
163 	/*
164 	 * Channel state:
165 	 *
166 	 * ic_channels is the set of available channels for the device;
167 	 *    it is setup by the driver
168 	 * ic_nchans is the number of valid entries in ic_channels
169 	 * ic_chan_avail is a bit vector of these channels used to check
170 	 *    whether a channel is available w/o searching the channel table.
171 	 * ic_chan_active is a (potentially) constrained subset of
172 	 *    ic_chan_avail that reflects any mode setting or user-specified
173 	 *    limit on the set of channels to use/scan
174 	 * ic_curchan is the current channel the device is set to; it may
175 	 *    be different from ic_bsschan when we are off-channel scanning
176 	 *    or otherwise doing background work
177 	 * ic_bsschan is the channel selected for operation; it may
178 	 *    be undefined (IEEE80211_CHAN_ANYC)
179 	 * ic_prevchan is a cached ``previous channel'' used to optimize
180 	 *    lookups when switching back+forth between two channels
181 	 *    (e.g. for dynamic turbo)
182 	 */
183 	int			ic_nchans;	/* # entries in ic_channels */
184 	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
185 	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
186 	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
187 	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
188 	struct ieee80211_channel *ic_curchan;	/* current channel */
189 	const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
190 	struct ieee80211_channel *ic_bsschan;	/* bss channel */
191 	struct ieee80211_channel *ic_prevchan;	/* previous channel */
192 	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
193 	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
194 	struct ieee80211_channel *ic_countryie_chan;
195 
196 	/* 802.11h/DFS state */
197 	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
198 	short			ic_csa_mode;	/* mode for doing CSA */
199 	short			ic_csa_count;	/* count for doing CSA */
200 	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
201 
202 	struct ieee80211_scan_state *ic_scan;	/* scan state */
203 	struct ieee80211_scan_methods *ic_scan_methods;	/* scan methods */
204 	int			ic_lastdata;	/* time of last data frame */
205 	int			ic_lastscan;	/* time last scan completed */
206 
207 	/* NB: this is the union of all vap stations/neighbors */
208 	int			ic_max_keyix;	/* max h/w key index */
209 	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
210 	struct ieee80211_ageq	ic_stageq;	/* frame staging queue */
211 	uint32_t		ic_hash_key;	/* random key for mac hash */
212 
213 	/* XXX multi-bss: split out common/vap parts */
214 	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
215 
216 	/* XXX multi-bss: can per-vap be done/make sense? */
217 	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
218 	uint16_t		ic_nonerpsta;	/* # non-ERP stations */
219 	uint16_t		ic_longslotsta;	/* # long slot time stations */
220 	uint16_t		ic_sta_assoc;	/* stations associated */
221 	uint16_t		ic_ht_sta_assoc;/* HT stations associated */
222 	uint16_t		ic_ht40_sta_assoc;/* HT40 stations associated */
223 	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
224 	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
225 	int			ic_lastnonerp;	/* last time non-ERP sta noted*/
226 	int			ic_lastnonht;	/* last time non-HT sta noted */
227 	uint8_t			ic_rxstream;    /* # RX streams */
228 	uint8_t			ic_txstream;    /* # TX streams */
229 
230 	/* optional state for Atheros SuperG protocol extensions */
231 	struct ieee80211_superg	*ic_superg;
232 
233 	/* radiotap handling */
234 	struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
235 	void			*ic_txchan;	/* channel state in ic_th */
236 	struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
237 	void			*ic_rxchan;	/* channel state in ic_rh */
238 	int			ic_montaps;	/* active monitor mode taps */
239 
240 	/* virtual ap create/delete */
241 	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
242 				    const char [IFNAMSIZ], int,
243 				    enum ieee80211_opmode, int,
244 				    const uint8_t [IEEE80211_ADDR_LEN],
245 				    const uint8_t [IEEE80211_ADDR_LEN]);
246 	void			(*ic_vap_delete)(struct ieee80211vap *);
247 	/* device specific ioctls */
248 	int			(*ic_ioctl)(struct ieee80211com *,
249 				    u_long, void *);
250 	/* start/stop device */
251 	void			(*ic_parent)(struct ieee80211com *);
252 	/* operating mode attachment */
253 	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
254 	/* return hardware/radio capabilities */
255 	void			(*ic_getradiocaps)(struct ieee80211com *,
256 				    int, int *, struct ieee80211_channel []);
257 	/* check and/or prepare regdomain state change */
258 	int			(*ic_setregdomain)(struct ieee80211com *,
259 				    struct ieee80211_regdomain *,
260 				    int, struct ieee80211_channel []);
261 
262 	int			(*ic_set_quiet)(struct ieee80211_node *,
263 				    u_int8_t *quiet_elm);
264 
265 	/* regular transmit */
266 	int			(*ic_transmit)(struct ieee80211com *,
267 				    struct mbuf *);
268 	/* send/recv 802.11 management frame */
269 	int			(*ic_send_mgmt)(struct ieee80211_node *,
270 				     int, int);
271 	/* send raw 802.11 frame */
272 	int			(*ic_raw_xmit)(struct ieee80211_node *,
273 				    struct mbuf *,
274 				    const struct ieee80211_bpf_params *);
275 	/* update device state for 802.11 slot time change */
276 	void			(*ic_updateslot)(struct ieee80211com *);
277 	/* handle multicast state changes */
278 	void			(*ic_update_mcast)(struct ieee80211com *);
279 	/* handle promiscuous mode changes */
280 	void			(*ic_update_promisc)(struct ieee80211com *);
281 	/* new station association callback/notification */
282 	void			(*ic_newassoc)(struct ieee80211_node *, int);
283 	/* TDMA update notification */
284 	void			(*ic_tdma_update)(struct ieee80211_node *,
285 				    const struct ieee80211_tdma_param *, int);
286 	/* node state management */
287 	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
288 				    const uint8_t [IEEE80211_ADDR_LEN]);
289 	void			(*ic_node_free)(struct ieee80211_node *);
290 	void			(*ic_node_cleanup)(struct ieee80211_node *);
291 	void			(*ic_node_age)(struct ieee80211_node *);
292 	void			(*ic_node_drain)(struct ieee80211_node *);
293 	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
294 	void			(*ic_node_getsignal)(const struct ieee80211_node*,
295 				    int8_t *, int8_t *);
296 	void			(*ic_node_getmimoinfo)(
297 				    const struct ieee80211_node*,
298 				    struct ieee80211_mimo_info *);
299 	/* scanning support */
300 	void			(*ic_scan_start)(struct ieee80211com *);
301 	void			(*ic_scan_end)(struct ieee80211com *);
302 	void			(*ic_set_channel)(struct ieee80211com *);
303 	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
304 				    unsigned long);
305 	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
306 
307 	/*
308 	 * 802.11n ADDBA support.  A simple/generic implementation
309 	 * of A-MPDU tx aggregation is provided; the driver may
310 	 * override these methods to provide their own support.
311 	 * A-MPDU rx re-ordering happens automatically if the
312 	 * driver passes out-of-order frames to ieee80211_input
313 	 * from an assocated HT station.
314 	 */
315 	int			(*ic_recv_action)(struct ieee80211_node *,
316 				    const struct ieee80211_frame *,
317 				    const uint8_t *frm, const uint8_t *efrm);
318 	int			(*ic_send_action)(struct ieee80211_node *,
319 				    int category, int action, void *);
320 	/* check if A-MPDU should be enabled this station+ac */
321 	int			(*ic_ampdu_enable)(struct ieee80211_node *,
322 				    struct ieee80211_tx_ampdu *);
323 	/* start/stop doing A-MPDU tx aggregation for a station */
324 	int			(*ic_addba_request)(struct ieee80211_node *,
325 				    struct ieee80211_tx_ampdu *,
326 				    int dialogtoken, int baparamset,
327 				    int batimeout);
328 	int			(*ic_addba_response)(struct ieee80211_node *,
329 				    struct ieee80211_tx_ampdu *,
330 				    int status, int baparamset, int batimeout);
331 	void			(*ic_addba_stop)(struct ieee80211_node *,
332 				    struct ieee80211_tx_ampdu *);
333 	void			(*ic_addba_response_timeout)(struct ieee80211_node *,
334 				    struct ieee80211_tx_ampdu *);
335 	/* BAR response received */
336 	void			(*ic_bar_response)(struct ieee80211_node *,
337 				    struct ieee80211_tx_ampdu *, int status);
338 	/* start/stop doing A-MPDU rx processing for a station */
339 	int			(*ic_ampdu_rx_start)(struct ieee80211_node *,
340 				    struct ieee80211_rx_ampdu *, int baparamset,
341 				    int batimeout, int baseqctl);
342 	void			(*ic_ampdu_rx_stop)(struct ieee80211_node *,
343 				    struct ieee80211_rx_ampdu *);
344 
345 	/* The channel width has changed (20<->2040) */
346 	void			(*ic_update_chw)(struct ieee80211com *);
347 
348 	uint64_t		ic_spare[7];
349 };
350 
351 struct ieee80211_aclator;
352 struct ieee80211_tdma_state;
353 struct ieee80211_mesh_state;
354 struct ieee80211_hwmp_state;
355 
356 struct ieee80211vap {
357 	struct ifmedia		iv_media;	/* interface media config */
358 	struct ifnet		*iv_ifp;	/* associated device */
359 	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
360 	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
361 	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
362 
363 	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
364 	struct ieee80211com	*iv_ic;		/* back ptr to common state */
365 	const uint8_t		*iv_myaddr;	/* MAC address: ifp or ic */
366 	uint32_t		iv_debug;	/* debug msg flags */
367 	struct ieee80211_stats	iv_stats;	/* statistics */
368 
369 	uint32_t		iv_flags;	/* state flags */
370 	uint32_t		iv_flags_ext;	/* extended state flags */
371 	uint32_t		iv_flags_ht;	/* HT state flags */
372 	uint32_t		iv_flags_ven;	/* vendor state flags */
373 	uint32_t		iv_ifflags;	/* ifnet flags */
374 	uint32_t		iv_caps;	/* capabilities */
375 	uint32_t		iv_htcaps;	/* HT capabilities */
376 	uint32_t		iv_htextcaps;	/* HT extended capabilities */
377 	enum ieee80211_opmode	iv_opmode;	/* operation mode */
378 	enum ieee80211_state	iv_state;	/* state machine state */
379 	enum ieee80211_state	iv_nstate;	/* pending state */
380 	int			iv_nstate_arg;	/* pending state arg */
381 	struct task		iv_nstate_task;	/* deferred state processing */
382 	struct task		iv_swbmiss_task;/* deferred iv_bmiss call */
383 	struct callout		iv_mgtsend;	/* mgmt frame response timer */
384 						/* inactivity timer settings */
385 	int			iv_inact_init;	/* setting for new station */
386 	int			iv_inact_auth;	/* auth but not assoc setting */
387 	int			iv_inact_run;	/* authorized setting */
388 	int			iv_inact_probe;	/* inactive probe time */
389 
390 	int			iv_des_nssid;	/* # desired ssids */
391 	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
392 	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
393 	struct ieee80211_channel *iv_des_chan;	/* desired channel */
394 	uint16_t		iv_des_mode;	/* desired mode */
395 	int			iv_nicknamelen;	/* XXX junk */
396 	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
397 	u_int			iv_bgscanidle;	/* bg scan idle threshold */
398 	u_int			iv_bgscanintvl;	/* bg scan min interval */
399 	u_int			iv_scanvalid;	/* scan cache valid threshold */
400 	u_int			iv_scanreq_duration;
401 	u_int			iv_scanreq_mindwell;
402 	u_int			iv_scanreq_maxdwell;
403 	uint16_t		iv_scanreq_flags;/* held scan request params */
404 	uint8_t			iv_scanreq_nssid;
405 	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
406 	/* sta-mode roaming state */
407 	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
408 	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
409 
410 	uint8_t			iv_bmissthreshold;
411 	uint8_t			iv_bmiss_count;	/* current beacon miss count */
412 	int			iv_bmiss_max;	/* max bmiss before scan */
413 	uint16_t		iv_swbmiss_count;/* beacons in last period */
414 	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
415 	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
416 
417 	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
418 	int			iv_ampdu_density;/* A-MPDU density */
419 	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
420 	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
421 	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
422 
423 	struct ieee80211_beacon_offsets iv_bcn_off;
424 	uint32_t		*iv_aid_bitmap;	/* association id map */
425 	uint16_t		iv_max_aid;
426 	uint16_t		iv_sta_assoc;	/* stations associated */
427 	uint16_t		iv_ps_sta;	/* stations in power save */
428 	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
429 	uint16_t		iv_txseq;	/* mcast xmit seq# space */
430 	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
431 	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
432 	uint8_t			iv_dtim_period;	/* DTIM period */
433 	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
434 						/* set/unset aid pwrsav state */
435 	uint8_t			iv_quiet;	/* Quiet Element */
436 	uint8_t			iv_quiet_count;	/* constant count for Quiet Element */
437 	uint8_t			iv_quiet_count_value;	/* variable count for Quiet Element */
438 	uint8_t			iv_quiet_period;	/* period for Quiet Element */
439 	uint16_t		iv_quiet_duration;	/* duration for Quiet Element */
440 	uint16_t		iv_quiet_offset;	/* offset for Quiet Element */
441 	int			iv_csa_count;	/* count for doing CSA */
442 
443 	struct ieee80211_node	*iv_bss;	/* information for this node */
444 	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
445 	uint16_t		iv_rtsthreshold;
446 	uint16_t		iv_fragthreshold;
447 	int			iv_inact_timer;	/* inactivity timer wait */
448 	/* application-specified IE's to attach to mgt frames */
449 	struct ieee80211_appie	*iv_appie_beacon;
450 	struct ieee80211_appie	*iv_appie_probereq;
451 	struct ieee80211_appie	*iv_appie_proberesp;
452 	struct ieee80211_appie	*iv_appie_assocreq;
453 	struct ieee80211_appie	*iv_appie_assocresp;
454 	struct ieee80211_appie	*iv_appie_wpa;
455 	uint8_t			*iv_wpa_ie;
456 	uint8_t			*iv_rsn_ie;
457 	uint16_t		iv_max_keyix;	/* max h/w key index */
458 	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
459 	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
460 	int			(*iv_key_alloc)(struct ieee80211vap *,
461 				    struct ieee80211_key *,
462 				    ieee80211_keyix *, ieee80211_keyix *);
463 	int			(*iv_key_delete)(struct ieee80211vap *,
464 				    const struct ieee80211_key *);
465 	int			(*iv_key_set)(struct ieee80211vap *,
466 				    const struct ieee80211_key *);
467 	void			(*iv_key_update_begin)(struct ieee80211vap *);
468 	void			(*iv_key_update_end)(struct ieee80211vap *);
469 
470 	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
471 	void			*iv_ec;		/* private auth state */
472 
473 	const struct ieee80211_aclator *iv_acl;	/* acl glue */
474 	void			*iv_as;		/* private aclator state */
475 
476 	const struct ieee80211_ratectl *iv_rate;
477 	void			*iv_rs;		/* private ratectl state */
478 
479 	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
480 	struct ieee80211_mesh_state *iv_mesh;	/* MBSS state */
481 	struct ieee80211_hwmp_state *iv_hwmp;	/* HWMP state */
482 
483 	/* operate-mode detach hook */
484 	void			(*iv_opdetach)(struct ieee80211vap *);
485 	/* receive processing */
486 	int			(*iv_input)(struct ieee80211_node *,
487 				    struct mbuf *,
488 				    const struct ieee80211_rx_stats *,
489 				    int, int);
490 	void			(*iv_recv_mgmt)(struct ieee80211_node *,
491 				    struct mbuf *, int,
492 				    const struct ieee80211_rx_stats *,
493 				    int, int);
494 	void			(*iv_recv_ctl)(struct ieee80211_node *,
495 				    struct mbuf *, int);
496 	void			(*iv_deliver_data)(struct ieee80211vap *,
497 				    struct ieee80211_node *, struct mbuf *);
498 #if 0
499 	/* send processing */
500 	int			(*iv_send_mgmt)(struct ieee80211_node *,
501 				     int, int);
502 #endif
503 	/* beacon miss processing */
504 	void			(*iv_bmiss)(struct ieee80211vap *);
505 	/* reset device state after 802.11 parameter/state change */
506 	int			(*iv_reset)(struct ieee80211vap *, u_long);
507 	/* [schedule] beacon frame update */
508 	void			(*iv_update_beacon)(struct ieee80211vap *, int);
509 	/* power save handling */
510 	void			(*iv_update_ps)(struct ieee80211vap *, int);
511 	int			(*iv_set_tim)(struct ieee80211_node *, int);
512 	void			(*iv_node_ps)(struct ieee80211_node *, int);
513 	void			(*iv_sta_ps)(struct ieee80211vap *, int);
514 	void			(*iv_recv_pspoll)(struct ieee80211_node *,
515 				    struct mbuf *);
516 
517 	/* state machine processing */
518 	int			(*iv_newstate)(struct ieee80211vap *,
519 				    enum ieee80211_state, int);
520 	/* 802.3 output method for raw frame xmit */
521 	int			(*iv_output)(struct ifnet *, struct mbuf *,
522 				    const struct sockaddr *, struct route *);
523 	uint64_t		iv_spare[6];
524 };
525 MALLOC_DECLARE(M_80211_VAP);
526 
527 #define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
528 #define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
529 
530 /* ic_flags/iv_flags */
531 #define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
532 #define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
533 #define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
534 #define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
535 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
536 #define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
537 #define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
538 #define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
539 #define	IEEE80211_F_ASCAN	0x00000100	/* STATUS: active scan */
540 #define	IEEE80211_F_SIBSS	0x00000200	/* STATUS: start IBSS */
541 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
542 #define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
543 #define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
544 #define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
545 #define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
546 #define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
547 #define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
548 #define IEEE80211_F_TXPOW_FIXED	0x00010000	/* TX Power: fixed rate */
549 #define	IEEE80211_F_IBSSON	0x00020000	/* CONF: IBSS creation enable */
550 #define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
551 #define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
552 #define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
553 #define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
554 #define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
555 #define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
556 #define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
557 #define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
558 #define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
559 #define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
560 #define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
561 #define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
562 #define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
563 #define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
564 #define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
565 
566 #define	IEEE80211_F_BITS \
567 	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN\11ASCAN\12SIBSS" \
568 	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY\21TXPOW_FIXED" \
569 	"\22IBSSON\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
570 	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
571 	"\37DOTH\40DWDS"
572 
573 /* Atheros protocol-specific flags */
574 #define	IEEE80211_F_ATHEROS \
575 	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
576 /* Check if an Atheros capability was negotiated for use */
577 #define	IEEE80211_ATH_CAP(vap, ni, bit) \
578 	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
579 
580 /* ic_flags_ext/iv_flags_ext */
581 #define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
582 #define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
583 /* 0x00000006 reserved */
584 #define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
585 #define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
586 #define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
587 #define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
588 #define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
589 #define	IEEE80211_FEXT_4ADDR	 0x00000100	/* CONF: apply 4-addr encap */
590 #define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
591 #define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
592 #define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
593 #define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
594 #define	IEEE80211_FEXT_STATEWAIT 0x00002000	/* STATUS: awaiting state chg */
595 #define	IEEE80211_FEXT_REINIT	 0x00004000	/* STATUS: INIT state first */
596 #define	IEEE80211_FEXT_BPF	 0x00008000	/* STATUS: BPF tap present */
597 /* NB: immutable: should be set only when creating a vap */
598 #define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
599 #define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
600 #define	IEEE80211_FEXT_UNIQMAC	 0x00040000	/* CONF: user or computed mac */
601 
602 #define	IEEE80211_FEXT_BITS \
603 	"\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
604 	"\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
605 	"\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC"
606 
607 /* ic_flags_ht/iv_flags_ht */
608 #define	IEEE80211_FHT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
609 #define	IEEE80211_FHT_GF  	 0x00040000	/* CONF: Greenfield enabled */
610 #define	IEEE80211_FHT_HT	 0x00080000	/* CONF: HT supported */
611 #define	IEEE80211_FHT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
612 #define	IEEE80211_FHT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU rx supported */
613 #define	IEEE80211_FHT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
614 #define	IEEE80211_FHT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU rx supported */
615 #define	IEEE80211_FHT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
616 #define	IEEE80211_FHT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
617 #define	IEEE80211_FHT_SHORTGI20	 0x04000000	/* CONF: short GI in HT20 */
618 #define	IEEE80211_FHT_SHORTGI40	 0x08000000	/* CONF: short GI in HT40 */
619 #define	IEEE80211_FHT_HTCOMPAT 	 0x10000000	/* CONF: HT vendor OUI's */
620 #define	IEEE80211_FHT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
621 #define	IEEE80211_FHT_STBC_TX 	 0x40000000	/* CONF: STBC tx enabled */
622 #define	IEEE80211_FHT_STBC_RX 	 0x80000000	/* CONF: STBC rx enabled */
623 
624 #define	IEEE80211_FHT_BITS \
625 	"\20\1NONHT_PR" \
626 	"\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
627 	"\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
628 	"\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
629 
630 #define	IEEE80211_FVEN_BITS	"\20"
631 
632 /* ic_caps/iv_caps: device driver capabilities */
633 /* 0x2e available */
634 #define	IEEE80211_C_STA		0x00000001	/* CAPABILITY: STA available */
635 #define	IEEE80211_C_8023ENCAP	0x00000002	/* CAPABILITY: 802.3 encap */
636 #define	IEEE80211_C_FF		0x00000040	/* CAPABILITY: ATH FF avail */
637 #define	IEEE80211_C_TURBOP	0x00000080	/* CAPABILITY: ATH Turbo avail*/
638 #define	IEEE80211_C_IBSS	0x00000100	/* CAPABILITY: IBSS available */
639 #define	IEEE80211_C_PMGT	0x00000200	/* CAPABILITY: Power mgmt */
640 #define	IEEE80211_C_HOSTAP	0x00000400	/* CAPABILITY: HOSTAP avail */
641 #define	IEEE80211_C_AHDEMO	0x00000800	/* CAPABILITY: Old Adhoc Demo */
642 #define	IEEE80211_C_SWRETRY	0x00001000	/* CAPABILITY: sw tx retry */
643 #define	IEEE80211_C_TXPMGT	0x00002000	/* CAPABILITY: tx power mgmt */
644 #define	IEEE80211_C_SHSLOT	0x00004000	/* CAPABILITY: short slottime */
645 #define	IEEE80211_C_SHPREAMBLE	0x00008000	/* CAPABILITY: short preamble */
646 #define	IEEE80211_C_MONITOR	0x00010000	/* CAPABILITY: monitor mode */
647 #define	IEEE80211_C_DFS		0x00020000	/* CAPABILITY: DFS/radar avail*/
648 #define	IEEE80211_C_MBSS	0x00040000	/* CAPABILITY: MBSS available */
649 #define	IEEE80211_C_SWSLEEP	0x00080000	/* CAPABILITY: do sleep here */
650 /* 0x7c0000 available */
651 #define	IEEE80211_C_WPA1	0x00800000	/* CAPABILITY: WPA1 avail */
652 #define	IEEE80211_C_WPA2	0x01000000	/* CAPABILITY: WPA2 avail */
653 #define	IEEE80211_C_WPA		0x01800000	/* CAPABILITY: WPA1+WPA2 avail*/
654 #define	IEEE80211_C_BURST	0x02000000	/* CAPABILITY: frame bursting */
655 #define	IEEE80211_C_WME		0x04000000	/* CAPABILITY: WME avail */
656 #define	IEEE80211_C_WDS		0x08000000	/* CAPABILITY: 4-addr support */
657 /* 0x10000000 reserved */
658 #define	IEEE80211_C_BGSCAN	0x20000000	/* CAPABILITY: bg scanning */
659 #define	IEEE80211_C_TXFRAG	0x40000000	/* CAPABILITY: tx fragments */
660 #define	IEEE80211_C_TDMA	0x80000000	/* CAPABILITY: TDMA avail */
661 /* XXX protection/barker? */
662 
663 #define	IEEE80211_C_OPMODE \
664 	(IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \
665 	 IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \
666 	 IEEE80211_C_TDMA | IEEE80211_C_MBSS)
667 
668 #define	IEEE80211_C_BITS \
669 	"\20\1STA\002803ENCAP\7FF\10TURBOP\11IBSS\12PMGT" \
670 	"\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \
671 	"\21MONITOR\22DFS\23MBSS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \
672 	"\37TXFRAG\40TDMA"
673 
674 /*
675  * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities
676  *
677  * NB: the low 16-bits are the 802.11 definitions, the upper
678  *     16-bits are used to define s/w/driver capabilities.
679  */
680 #define	IEEE80211_HTC_AMPDU	0x00010000	/* CAPABILITY: A-MPDU tx */
681 #define	IEEE80211_HTC_AMSDU	0x00020000	/* CAPABILITY: A-MSDU tx */
682 /* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
683 #define	IEEE80211_HTC_HT	0x00040000	/* CAPABILITY: HT operation */
684 #define	IEEE80211_HTC_SMPS	0x00080000	/* CAPABILITY: MIMO power save*/
685 #define	IEEE80211_HTC_RIFS	0x00100000	/* CAPABILITY: RIFS support */
686 #define	IEEE80211_HTC_RXUNEQUAL	0x00200000	/* CAPABILITY: RX unequal MCS */
687 #define	IEEE80211_HTC_RXMCS32	0x00400000	/* CAPABILITY: MCS32 support */
688 #define	IEEE80211_HTC_TXUNEQUAL	0x00800000	/* CAPABILITY: TX unequal MCS */
689 #define	IEEE80211_HTC_TXMCS32	0x01000000	/* CAPABILITY: MCS32 suport */
690 
691 #define	IEEE80211_C_HTCAP_BITS \
692 	"\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
693 	"\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS"
694 
695 int	ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
696 void	ieee80211_ifattach(struct ieee80211com *);
697 void	ieee80211_ifdetach(struct ieee80211com *);
698 int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
699 		const char name[IFNAMSIZ], int unit,
700 		enum ieee80211_opmode opmode, int flags,
701 		const uint8_t bssid[IEEE80211_ADDR_LEN]);
702 int	ieee80211_vap_attach(struct ieee80211vap *,
703 		ifm_change_cb_t, ifm_stat_cb_t,
704 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
705 void	ieee80211_vap_detach(struct ieee80211vap *);
706 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
707 		const struct ieee80211_channel *);
708 void	ieee80211_announce(struct ieee80211com *);
709 void	ieee80211_announce_channels(struct ieee80211com *);
710 void	ieee80211_drain(struct ieee80211com *);
711 void	ieee80211_chan_init(struct ieee80211com *);
712 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
713 struct ieee80211com *ieee80211_find_com(const char *name);
714 int	ieee80211_media_change(struct ifnet *);
715 void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
716 int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
717 int	ieee80211_rate2media(struct ieee80211com *, int,
718 		enum ieee80211_phymode);
719 int	ieee80211_media2rate(int);
720 int	ieee80211_mhz2ieee(u_int, u_int);
721 int	ieee80211_chan2ieee(struct ieee80211com *,
722 		const struct ieee80211_channel *);
723 u_int	ieee80211_ieee2mhz(u_int, u_int);
724 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
725 		int freq, int flags);
726 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
727 		int ieee, int flags);
728 struct ieee80211_channel *ieee80211_lookup_channel_rxstatus(struct ieee80211vap *,
729 		const struct ieee80211_rx_stats *);
730 int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
731 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
732 uint32_t ieee80211_mac_hash(const struct ieee80211com *,
733 		const uint8_t addr[IEEE80211_ADDR_LEN]);
734 char	ieee80211_channel_type_char(const struct ieee80211_channel *c);
735 
736 void	ieee80211_radiotap_attach(struct ieee80211com *,
737 	    struct ieee80211_radiotap_header *th, int tlen,
738 		uint32_t tx_radiotap,
739 	    struct ieee80211_radiotap_header *rh, int rlen,
740 		uint32_t rx_radiotap);
741 void	ieee80211_radiotap_attachv(struct ieee80211com *,
742 	    struct ieee80211_radiotap_header *th,
743 	    int tlen, int n_tx_v, uint32_t tx_radiotap,
744 	    struct ieee80211_radiotap_header *rh,
745 	    int rlen, int n_rx_v, uint32_t rx_radiotap);
746 void	ieee80211_radiotap_detach(struct ieee80211com *);
747 void	ieee80211_radiotap_vattach(struct ieee80211vap *);
748 void	ieee80211_radiotap_vdetach(struct ieee80211vap *);
749 void	ieee80211_radiotap_chan_change(struct ieee80211com *);
750 void	ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
751 void	ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
752 void	ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
753 
754 static __inline int
755 ieee80211_radiotap_active(const struct ieee80211com *ic)
756 {
757 	return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
758 }
759 
760 static __inline int
761 ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
762 {
763 	return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
764 	    vap->iv_ic->ic_montaps != 0;
765 }
766 
767 /*
768  * Enqueue a task on the state thread.
769  */
770 static __inline void
771 ieee80211_runtask(struct ieee80211com *ic, struct task *task)
772 {
773 	taskqueue_enqueue(ic->ic_tq, task);
774 }
775 
776 /*
777  * Wait for a queued task to complete.
778  */
779 static __inline void
780 ieee80211_draintask(struct ieee80211com *ic, struct task *task)
781 {
782 	taskqueue_drain(ic->ic_tq, task);
783 }
784 
785 /*
786  * Key update synchronization methods.  XXX should not be visible.
787  */
788 static __inline void
789 ieee80211_key_update_begin(struct ieee80211vap *vap)
790 {
791 	vap->iv_key_update_begin(vap);
792 }
793 static __inline void
794 ieee80211_key_update_end(struct ieee80211vap *vap)
795 {
796 	vap->iv_key_update_end(vap);
797 }
798 
799 /*
800  * XXX these need to be here for IEEE80211_F_DATAPAD
801  */
802 
803 /*
804  * Return the space occupied by the 802.11 header and any
805  * padding required by the driver.  This works for a
806  * management or data frame.
807  */
808 static __inline int
809 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
810 {
811 	int size = ieee80211_hdrsize(data);
812 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
813 		size = roundup(size, sizeof(uint32_t));
814 	return size;
815 }
816 
817 /*
818  * Like ieee80211_hdrspace, but handles any type of frame.
819  */
820 static __inline int
821 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
822 {
823 	int size = ieee80211_anyhdrsize(data);
824 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
825 		size = roundup(size, sizeof(uint32_t));
826 	return size;
827 }
828 
829 /*
830  * Notify a vap that beacon state has been updated.
831  */
832 static __inline void
833 ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
834 {
835 	if (vap->iv_state == IEEE80211_S_RUN)
836 		vap->iv_update_beacon(vap, what);
837 }
838 
839 /*
840  * Calculate HT channel promotion flags for a channel.
841  * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
842  */
843 static __inline int
844 ieee80211_htchanflags(const struct ieee80211_channel *c)
845 {
846 	return IEEE80211_IS_CHAN_HT40(c) ?
847 	    IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
848 	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
849 }
850 
851 /*
852  * Fetch the current TX power (cap) for the given node.
853  *
854  * This includes the node and ic/vap TX power limit as needed,
855  * but it doesn't take into account any per-rate limit.
856  */
857 static __inline uint16_t
858 ieee80211_get_node_txpower(struct ieee80211_node *ni)
859 {
860 	struct ieee80211com *ic = ni->ni_ic;
861 	uint16_t txpower;
862 
863 	txpower = ni->ni_txpower;
864 	txpower = MIN(txpower, ic->ic_txpowlimit);
865 	if (ic->ic_curchan != NULL) {
866 		txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
867 		txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
868 	}
869 
870 	return (txpower);
871 }
872 
873 /*
874  * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
875  *
876  * The intent is that any problem in the net80211 layer can be
877  * diagnosed by inspecting the statistics (dumped by the wlanstats
878  * program) and/or the msgs generated by net80211.  Messages are
879  * broken into functional classes and can be controlled with the
880  * wlandebug program.  Certain of these msg groups are for facilities
881  * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
882  */
883 #define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
884 #define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
885 #define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
886 #define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
887 #define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
888 #define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
889 #define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
890 #define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
891 #define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
892 #define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
893 #define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
894 #define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
895 #define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
896 #define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
897 #define	IEEE80211_MSG_HWMP	0x00020000	/* hybrid mesh protocol */
898 #define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
899 #define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
900 #define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
901 #define	IEEE80211_MSG_MESH	0x00002000	/* mesh networking */
902 #define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
903 #define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
904 #define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
905 #define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
906 #define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
907 #define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
908 #define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
909 #define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
910 #define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
911 #define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
912 #define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
913 #define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
914 
915 #define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
916 
917 #define	IEEE80211_MSG_BITS \
918 	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
919 	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
920 	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
921 	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
922 
923 #ifdef IEEE80211_DEBUG
924 #define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
925 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
926 	if (ieee80211_msg(_vap, _m))					\
927 		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
928 } while (0)
929 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
930 	if (ieee80211_msg(_vap, _m))					\
931 		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
932 } while (0)
933 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
934 	if (ieee80211_msg(_vap, _m))					\
935 		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
936 } while (0)
937 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
938 	if (ieee80211_msg(_vap, _m))					\
939 		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
940 } while (0)
941 void	ieee80211_note(const struct ieee80211vap *, const char *, ...);
942 void	ieee80211_note_mac(const struct ieee80211vap *,
943 		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
944 void	ieee80211_note_frame(const struct ieee80211vap *,
945 		const struct ieee80211_frame *, const char *, ...);
946 #define	ieee80211_msg_debug(_vap) \
947 	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
948 #define	ieee80211_msg_dumppkts(_vap) \
949 	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
950 #define	ieee80211_msg_input(_vap) \
951 	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
952 #define	ieee80211_msg_radius(_vap) \
953 	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
954 #define	ieee80211_msg_dumpradius(_vap) \
955 	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
956 #define	ieee80211_msg_dumpradkeys(_vap) \
957 	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
958 #define	ieee80211_msg_scan(_vap) \
959 	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
960 #define	ieee80211_msg_assoc(_vap) \
961 	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
962 
963 /*
964  * Emit a debug message about discarding a frame or information
965  * element.  One format is for extracting the mac address from
966  * the frame header; the other is for when a header is not
967  * available or otherwise appropriate.
968  */
969 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
970 	if ((_vap)->iv_debug & (_m))					\
971 		ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
972 } while (0)
973 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
974 	if ((_vap)->iv_debug & (_m))					\
975 		ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
976 } while (0)
977 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
978 	if ((_vap)->iv_debug & (_m))					\
979 		ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
980 } while (0)
981 
982 void ieee80211_discard_frame(const struct ieee80211vap *,
983 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
984 void ieee80211_discard_ie(const struct ieee80211vap *,
985 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
986 void ieee80211_discard_mac(const struct ieee80211vap *,
987 	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
988 	const char *fmt, ...);
989 #else
990 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
991 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
992 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
993 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
994 #define	ieee80211_msg_dumppkts(_vap)	0
995 #define	ieee80211_msg(_vap, _m)		0
996 
997 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
998 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
999 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
1000 #endif
1001 
1002 #endif /* _NET80211_IEEE80211_VAR_H_ */
1003