xref: /freebsd/sys/net80211/ieee80211_var.h (revision 39beb93c)
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 #ifdef __NetBSD__
36 #include <net80211/ieee80211_netbsd.h>
37 #elif __FreeBSD__
38 #include <net80211/ieee80211_freebsd.h>
39 #elif __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_crypto.h>
48 #include <net80211/ieee80211_dfs.h>
49 #include <net80211/ieee80211_ioctl.h>		/* for ieee80211_stats */
50 #include <net80211/ieee80211_power.h>
51 #include <net80211/ieee80211_node.h>
52 #include <net80211/ieee80211_proto.h>
53 #include <net80211/ieee80211_scan.h>
54 
55 #define	IEEE80211_TXPOWER_MAX	100	/* .5 dbM (XXX units?) */
56 #define	IEEE80211_TXPOWER_MIN	0	/* kill radio */
57 
58 #define	IEEE80211_DTIM_DEFAULT	1	/* default DTIM period */
59 #define	IEEE80211_BINTVAL_DEFAULT 100	/* default beacon interval (TU's) */
60 
61 #define	IEEE80211_BMISS_MAX	2	/* maximum consecutive bmiss allowed */
62 #define	IEEE80211_HWBMISS_DEFAULT 7	/* h/w bmiss threshold (beacons) */
63 
64 #define	IEEE80211_BGSCAN_INTVAL_MIN	15	/* min bg scan intvl (secs) */
65 #define	IEEE80211_BGSCAN_INTVAL_DEFAULT	(5*60)	/* default bg scan intvl */
66 
67 #define	IEEE80211_BGSCAN_IDLE_MIN	100	/* min idle time (ms) */
68 #define	IEEE80211_BGSCAN_IDLE_DEFAULT	250	/* default idle time (ms) */
69 
70 #define	IEEE80211_SCAN_VALID_MIN	10	/* min scan valid time (secs) */
71 #define	IEEE80211_SCAN_VALID_DEFAULT	60	/* default scan valid time */
72 
73 #define	IEEE80211_PS_SLEEP	0x1	/* STA is in power saving mode */
74 #define	IEEE80211_PS_MAX_QUEUE	50	/* maximum saved packets */
75 
76 #define	IEEE80211_FIXED_RATE_NONE	0xff
77 #define	IEEE80211_TXMAX_DEFAULT		6	/* default ucast max retries */
78 
79 #define	IEEE80211_RTS_DEFAULT		IEEE80211_RTS_MAX
80 #define	IEEE80211_FRAG_DEFAULT		IEEE80211_FRAG_MAX
81 
82 #define	IEEE80211_MS_TO_TU(x)	(((x) * 1000) / 1024)
83 #define	IEEE80211_TU_TO_MS(x)	(((x) * 1024) / 1000)
84 #define	IEEE80211_TU_TO_TICKS(x)(((x) * 1024 * hz) / (1000 * 1000))
85 
86 /*
87  * 802.11 control state is split into a common portion that maps
88  * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
89  * that are bound to an ieee80211com instance and share a single
90  * underlying device.  Each VAP has a corresponding OS device
91  * entity through which traffic flows and that applications use
92  * for issuing ioctls, etc.
93  */
94 
95 /*
96  * Data common to one or more virtual AP's.  State shared by
97  * the underlying device and the net80211 layer is exposed here;
98  * e.g. device-specific callbacks.
99  */
100 struct ieee80211vap;
101 typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
102 
103 struct ieee80211_appie {
104 	uint16_t		ie_len;		/* size of ie_data */
105 	uint8_t			ie_data[];	/* user-specified IE's */
106 };
107 
108 struct ieee80211_tdma_param;
109 
110 struct ieee80211com {
111 	struct ifnet		*ic_ifp;	/* associated device */
112 	ieee80211_com_lock_t	ic_comlock;	/* state update lock */
113 	TAILQ_HEAD(, ieee80211vap) ic_vaps;	/* list of vap instances */
114 	int			ic_headroom;	/* driver tx headroom needs */
115 	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
116 	enum ieee80211_opmode	ic_opmode;	/* operation mode */
117 	struct ifmedia		ic_media;	/* interface media config */
118 	uint8_t			ic_myaddr[IEEE80211_ADDR_LEN];
119 	struct callout		ic_inact;	/* inactivity processing */
120 	struct task		ic_parent_task;	/* deferred parent processing */
121 
122 	uint32_t		ic_flags;	/* state flags */
123 	uint32_t		ic_flags_ext;	/* extended state flags */
124 	uint32_t		ic_flags_ven;	/* vendor state flags */
125 	uint32_t		ic_caps;	/* capabilities */
126 	uint32_t		ic_htcaps;	/* HT capabilities */
127 	uint32_t		ic_cryptocaps;	/* crypto capabilities */
128 	uint8_t			ic_modecaps[2];	/* set of mode capabilities */
129 	uint8_t			ic_promisc;	/* vap's needing promisc mode */
130 	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
131 	uint8_t			ic_nrunning;	/* vap's marked running */
132 	uint8_t			ic_curmode;	/* current mode */
133 	uint16_t		ic_bintval;	/* beacon interval */
134 	uint16_t		ic_lintval;	/* listen interval */
135 	uint16_t		ic_holdover;	/* PM hold over duration */
136 	uint16_t		ic_txpowlimit;	/* global tx power limit */
137 	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
138 
139 	/*
140 	 * Channel state:
141 	 *
142 	 * ic_channels is the set of available channels for the device;
143 	 *    it is setup by the driver
144 	 * ic_nchans is the number of valid entries in ic_channels
145 	 * ic_chan_avail is a bit vector of these channels used to check
146 	 *    whether a channel is available w/o searching the channel table.
147 	 * ic_chan_active is a (potentially) constrained subset of
148 	 *    ic_chan_avail that reflects any mode setting or user-specified
149 	 *    limit on the set of channels to use/scan
150 	 * ic_curchan is the current channel the device is set to; it may
151 	 *    be different from ic_bsschan when we are off-channel scanning
152 	 *    or otherwise doing background work
153 	 * ic_bsschan is the channel selected for operation; it may
154 	 *    be undefined (IEEE80211_CHAN_ANYC)
155 	 * ic_prevchan is a cached ``previous channel'' used to optimize
156 	 *    lookups when switching back+forth between two channels
157 	 *    (e.g. for dynamic turbo)
158 	 */
159 	int			ic_nchans;	/* # entries in ic_channels */
160 	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
161 	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
162 	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
163 	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
164 	struct ieee80211_channel *ic_curchan;	/* current channel */
165 	struct ieee80211_channel *ic_bsschan;	/* bss channel */
166 	struct ieee80211_channel *ic_prevchan;	/* previous channel */
167 	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
168 	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
169 	struct ieee80211_channel *ic_countryie_chan;
170 
171 	/* 802.11h/DFS state */
172 	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
173 	int			ic_csa_count;	/* count for doing CSA */
174 	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
175 
176 	struct ieee80211_scan_state *ic_scan;	/* scan state */
177 	int			ic_lastdata;	/* time of last data frame */
178 	int			ic_lastscan;	/* time last scan completed */
179 
180 	/* NB: this is the union of all vap stations/neighbors */
181 	int			ic_max_keyix;	/* max h/w key index */
182 	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
183 
184 	/* XXX multi-bss: split out common/vap parts */
185 	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
186 
187 	/* XXX multi-bss: can per-vap be done/make sense? */
188 	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
189 	uint16_t		ic_nonerpsta;	/* # non-ERP stations */
190 	uint16_t		ic_longslotsta;	/* # long slot time stations */
191 	uint16_t		ic_sta_assoc;	/* stations associated */
192 	uint16_t		ic_ht_sta_assoc;/* HT stations associated */
193 	uint16_t		ic_ht40_sta_assoc;/* HT40 stations associated */
194 	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
195 	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
196 	int			ic_lastnonerp;	/* last time non-ERP sta noted*/
197 	int			ic_lastnonht;	/* last time non-HT sta noted */
198 
199 	/* virtual ap create/delete */
200 	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
201 				    const char name[IFNAMSIZ], int unit,
202 				    int opmode, int flags,
203 				    const uint8_t bssid[IEEE80211_ADDR_LEN],
204 				    const uint8_t macaddr[IEEE80211_ADDR_LEN]);
205 	void			(*ic_vap_delete)(struct ieee80211vap *);
206 	/* operating mode attachment */
207 	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
208 	/* return hardware/radio capabilities */
209 	void			(*ic_getradiocaps)(struct ieee80211com *,
210 				    int, int *, struct ieee80211_channel []);
211 	/* check and/or prepare regdomain state change */
212 	int			(*ic_setregdomain)(struct ieee80211com *,
213 				    struct ieee80211_regdomain *,
214 				    int, struct ieee80211_channel []);
215 	/* send/recv 802.11 management frame */
216 	int			(*ic_send_mgmt)(struct ieee80211_node *,
217 				     int, int);
218 	/* send raw 802.11 frame */
219 	int			(*ic_raw_xmit)(struct ieee80211_node *,
220 				    struct mbuf *,
221 				    const struct ieee80211_bpf_params *);
222 	/* update device state for 802.11 slot time change */
223 	void			(*ic_updateslot)(struct ifnet *);
224 	/* handle multicast state changes */
225 	void			(*ic_update_mcast)(struct ifnet *);
226 	/* handle promiscuous mode changes */
227 	void			(*ic_update_promisc)(struct ifnet *);
228 	/* new station association callback/notification */
229 	void			(*ic_newassoc)(struct ieee80211_node *, int);
230 	/* TDMA update notification */
231 	void			(*ic_tdma_update)(struct ieee80211_node *,
232 				    const struct ieee80211_tdma_param *);
233 	/* node state management */
234 	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
235 				    const uint8_t [IEEE80211_ADDR_LEN]);
236 	void			(*ic_node_free)(struct ieee80211_node *);
237 	void			(*ic_node_cleanup)(struct ieee80211_node *);
238 	void			(*ic_node_age)(struct ieee80211_node *);
239 	void			(*ic_node_drain)(struct ieee80211_node *);
240 	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
241 	void			(*ic_node_getsignal)(const struct ieee80211_node*,
242 				    int8_t *, int8_t *);
243 	void			(*ic_node_getmimoinfo)(
244 				    const struct ieee80211_node*,
245 				    struct ieee80211_mimo_info *);
246 	/* scanning support */
247 	void			(*ic_scan_start)(struct ieee80211com *);
248 	void			(*ic_scan_end)(struct ieee80211com *);
249 	void			(*ic_set_channel)(struct ieee80211com *);
250 	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
251 				    unsigned long);
252 	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
253 
254 	/*
255 	 * 802.11n ADDBA support.  A simple/generic implementation
256 	 * of A-MPDU tx aggregation is provided; the driver may
257 	 * override these methods to provide their own support.
258 	 * A-MPDU rx re-ordering happens automatically if the
259 	 * driver passes out-of-order frames to ieee80211_input
260 	 * from an assocated HT station.
261 	 */
262 	void			(*ic_recv_action)(struct ieee80211_node *,
263 				    const uint8_t *frm, const uint8_t *efrm);
264 	int			(*ic_send_action)(struct ieee80211_node *,
265 				    int category, int action,
266 				    uint16_t args[4]);
267 	/* check if A-MPDU should be enabled this station+ac */
268 	int			(*ic_ampdu_enable)(struct ieee80211_node *,
269 				    struct ieee80211_tx_ampdu *);
270 	/* start/stop doing A-MPDU tx aggregation for a station */
271 	int			(*ic_addba_request)(struct ieee80211_node *,
272 				    struct ieee80211_tx_ampdu *,
273 				    int dialogtoken, int baparamset,
274 				    int batimeout);
275 	int			(*ic_addba_response)(struct ieee80211_node *,
276 				    struct ieee80211_tx_ampdu *,
277 				    int status, int baparamset, int batimeout);
278 	void			(*ic_addba_stop)(struct ieee80211_node *,
279 				    struct ieee80211_tx_ampdu *);
280 	/* BAR response received */
281 	void			(*ic_bar_response)(struct ieee80211_node *,
282 				    struct ieee80211_tx_ampdu *, int status);
283 };
284 
285 struct ieee80211_aclator;
286 struct ieee80211_tdma_state;
287 
288 struct ieee80211vap {
289 	struct ifmedia		iv_media;	/* interface media config */
290 	struct ifnet		*iv_ifp;	/* associated device */
291 	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
292 	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
293 	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
294 
295 	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
296 	struct ieee80211com	*iv_ic;		/* back ptr to common state */
297 	uint32_t		iv_debug;	/* debug msg flags */
298 	struct ieee80211_stats	iv_stats;	/* statistics */
299 
300 	uint8_t			iv_myaddr[IEEE80211_ADDR_LEN];
301 	uint32_t		iv_flags;	/* state flags */
302 	uint32_t		iv_flags_ext;	/* extended state flags */
303 	uint32_t		iv_flags_ven;	/* vendor state flags */
304 	uint32_t		iv_caps;	/* capabilities */
305 	uint32_t		iv_htcaps;	/* HT capabilities */
306 	enum ieee80211_opmode	iv_opmode;	/* operation mode */
307 	enum ieee80211_state	iv_state;	/* state machine state */
308 	void			(*iv_newstate_cb)(struct ieee80211vap *,
309 				    enum ieee80211_state, int);
310 	struct callout		iv_mgtsend;	/* mgmt frame response timer */
311 						/* inactivity timer settings */
312 	int			iv_inact_init;	/* setting for new station */
313 	int			iv_inact_auth;	/* auth but not assoc setting */
314 	int			iv_inact_run;	/* authorized setting */
315 	int			iv_inact_probe;	/* inactive probe time */
316 
317 	int			iv_des_nssid;	/* # desired ssids */
318 	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
319 	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
320 	struct ieee80211_channel *iv_des_chan;	/* desired channel */
321 	uint16_t		iv_des_mode;	/* desired mode */
322 	int			iv_nicknamelen;	/* XXX junk */
323 	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
324 	u_int			iv_bgscanidle;	/* bg scan idle threshold */
325 	u_int			iv_bgscanintvl;	/* bg scan min interval */
326 	u_int			iv_scanvalid;	/* scan cache valid threshold */
327 	u_int			iv_scanreq_duration;
328 	u_int			iv_scanreq_mindwell;
329 	u_int			iv_scanreq_maxdwell;
330 	uint16_t		iv_scanreq_flags;/* held scan request params */
331 	uint8_t			iv_scanreq_nssid;
332 	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
333 	/* sta-mode roaming state */
334 	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
335 	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
336 
337 	uint8_t			iv_bmissthreshold;
338 	uint8_t			iv_bmiss_count;	/* current beacon miss count */
339 	int			iv_bmiss_max;	/* max bmiss before scan */
340 	uint16_t		iv_swbmiss_count;/* beacons in last period */
341 	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
342 	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
343 
344 	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
345 	int			iv_ampdu_density;/* A-MPDU density */
346 	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
347 	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
348 	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
349 
350 	uint32_t		*iv_aid_bitmap;	/* association id map */
351 	uint16_t		iv_max_aid;
352 	uint16_t		iv_sta_assoc;	/* stations associated */
353 	uint16_t		iv_ps_sta;	/* stations in power save */
354 	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
355 	uint16_t		iv_txseq;	/* mcast xmit seq# space */
356 	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
357 	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
358 	uint8_t			iv_dtim_period;	/* DTIM period */
359 	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
360 						/* set/unset aid pwrsav state */
361 	int			iv_csa_count;	/* count for doing CSA */
362 
363 	struct ieee80211_node	*iv_bss;	/* information for this node */
364 	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
365 	uint16_t		iv_rtsthreshold;
366 	uint16_t		iv_fragthreshold;
367 	int			iv_inact_timer;	/* inactivity timer wait */
368 	/* application-specified IE's to attach to mgt frames */
369 	struct ieee80211_appie	*iv_appie_beacon;
370 	struct ieee80211_appie	*iv_appie_probereq;
371 	struct ieee80211_appie	*iv_appie_proberesp;
372 	struct ieee80211_appie	*iv_appie_assocreq;
373 	struct ieee80211_appie	*iv_appie_assocresp;
374 	struct ieee80211_appie	*iv_appie_wpa;
375 	uint8_t			*iv_wpa_ie;
376 	uint8_t			*iv_rsn_ie;
377 	uint16_t		iv_max_keyix;	/* max h/w key index */
378 	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
379 	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
380 	int			(*iv_key_alloc)(struct ieee80211vap *,
381 				    struct ieee80211_key *,
382 				    ieee80211_keyix *, ieee80211_keyix *);
383 	int			(*iv_key_delete)(struct ieee80211vap *,
384 				    const struct ieee80211_key *);
385 	int			(*iv_key_set)(struct ieee80211vap *,
386 				    const struct ieee80211_key *,
387 				    const uint8_t mac[IEEE80211_ADDR_LEN]);
388 	void			(*iv_key_update_begin)(struct ieee80211vap *);
389 	void			(*iv_key_update_end)(struct ieee80211vap *);
390 
391 	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
392 	void			*iv_ec;		/* private auth state */
393 
394 	const struct ieee80211_aclator *iv_acl;	/* acl glue */
395 	void			*iv_as;		/* private aclator state */
396 
397 	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
398 
399 	/* operate-mode detach hook */
400 	void			(*iv_opdetach)(struct ieee80211vap *);
401 	/* receive processing */
402 	int			(*iv_input)(struct ieee80211_node *,
403 				    struct mbuf *, int rssi, int noise,
404 				    uint32_t rstamp);
405 	void			(*iv_recv_mgmt)(struct ieee80211_node *,
406 				    struct mbuf *, int, int, int, uint32_t);
407 	void			(*iv_deliver_data)(struct ieee80211vap *,
408 				    struct ieee80211_node *, struct mbuf *);
409 #if 0
410 	/* send processing */
411 	int			(*iv_send_mgmt)(struct ieee80211_node *,
412 				     int, int);
413 #endif
414 	/* beacon miss processing */
415 	void			(*iv_bmiss)(struct ieee80211vap *);
416 	/* reset device state after 802.11 parameter/state change */
417 	int			(*iv_reset)(struct ieee80211vap *, u_long);
418 	/* [schedule] beacon frame update */
419 	void			(*iv_update_beacon)(struct ieee80211vap *, int);
420 	/* power save handling */
421 	void			(*iv_update_ps)(struct ieee80211vap *, int);
422 	int			(*iv_set_tim)(struct ieee80211_node *, int);
423 	/* state machine processing */
424 	int			(*iv_newstate)(struct ieee80211vap *,
425 				    enum ieee80211_state, int);
426 	/* 802.3 output method for raw frame xmit */
427 	int			(*iv_output)(struct ifnet *, struct mbuf *,
428 				    struct sockaddr *, struct rtentry *);
429 };
430 MALLOC_DECLARE(M_80211_VAP);
431 
432 #define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
433 #define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
434 
435 /* ic_flags/iv_flags */
436 #define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
437 #define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
438 #define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
439 #define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
440 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
441 #define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
442 #define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
443 #define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
444 #define	IEEE80211_F_ASCAN	0x00000100	/* STATUS: active scan */
445 #define	IEEE80211_F_SIBSS	0x00000200	/* STATUS: start IBSS */
446 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
447 #define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
448 #define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
449 #define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
450 #define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
451 #define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
452 #define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
453 #define IEEE80211_F_TXPOW_FIXED	0x00010000	/* TX Power: fixed rate */
454 #define	IEEE80211_F_IBSSON	0x00020000	/* CONF: IBSS creation enable */
455 #define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
456 #define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
457 #define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
458 #define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
459 #define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
460 #define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
461 #define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
462 #define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
463 #define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
464 #define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
465 #define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
466 #define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
467 #define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
468 #define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
469 #define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
470 
471 #define	IEEE80211_F_BITS \
472 	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN\11ASCAN\12SIBSS" \
473 	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY\21TXPOW_FIXED" \
474 	"\22IBSSON\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
475 	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
476 	"\37DOTH\40DWDS"
477 
478 /* Atheros protocol-specific flags */
479 #define	IEEE80211_F_ATHEROS \
480 	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
481 /* Check if an Atheros capability was negotiated for use */
482 #define	IEEE80211_ATH_CAP(vap, ni, bit) \
483 	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
484 
485 /* ic_flags_ext/iv_flags_ext */
486 #define	IEEE80211_FEXT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
487 #define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
488 #define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
489 /* 0x00000006 reserved */
490 #define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
491 #define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
492 #define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
493 #define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
494 #define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
495 #define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
496 #define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
497 #define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
498 #define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
499 /* NB: immutable: should be set only when creating a vap */
500 #define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
501 #define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
502 #define	IEEE80211_FEXT_HT	 0x00080000	/* CONF: HT supported */
503 #define	IEEE80211_FEXT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
504 #define	IEEE80211_FEXT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU tx supported */
505 #define	IEEE80211_FEXT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
506 #define	IEEE80211_FEXT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU tx supported */
507 #define	IEEE80211_FEXT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
508 #define	IEEE80211_FEXT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
509 #define	IEEE80211_FEXT_SHORTGI20 0x04000000	/* CONF: short GI in HT20 */
510 #define	IEEE80211_FEXT_SHORTGI40 0x08000000	/* CONF: short GI in HT40 */
511 #define	IEEE80211_FEXT_HTCOMPAT  0x10000000	/* CONF: HT vendor OUI's */
512 #define	IEEE80211_FEXT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
513 
514 #define	IEEE80211_FEXT_BITS \
515 	"\20\1NONHT_PR\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
516 	"\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\22WDSLEGACY\23PROBECHAN\24HT" \
517 	"\25AMDPU_TX\26AMPDU_TX\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN" \
518 	"\33SHORTGI20\34SHORTGI40\35HTCOMPAT\36RIFS"
519 
520 #define	IEEE80211_FVEN_BITS	"\20"
521 
522 /* ic_caps/iv_caps: device driver capabilities */
523 /* 0x2f available */
524 #define	IEEE80211_C_STA		0x00000001	/* CAPABILITY: STA available */
525 #define	IEEE80211_C_FF		0x00000040	/* CAPABILITY: ATH FF avail */
526 #define	IEEE80211_C_TURBOP	0x00000080	/* CAPABILITY: ATH Turbo avail*/
527 #define	IEEE80211_C_IBSS	0x00000100	/* CAPABILITY: IBSS available */
528 #define	IEEE80211_C_PMGT	0x00000200	/* CAPABILITY: Power mgmt */
529 #define	IEEE80211_C_HOSTAP	0x00000400	/* CAPABILITY: HOSTAP avail */
530 #define	IEEE80211_C_AHDEMO	0x00000800	/* CAPABILITY: Old Adhoc Demo */
531 #define	IEEE80211_C_SWRETRY	0x00001000	/* CAPABILITY: sw tx retry */
532 #define	IEEE80211_C_TXPMGT	0x00002000	/* CAPABILITY: tx power mgmt */
533 #define	IEEE80211_C_SHSLOT	0x00004000	/* CAPABILITY: short slottime */
534 #define	IEEE80211_C_SHPREAMBLE	0x00008000	/* CAPABILITY: short preamble */
535 #define	IEEE80211_C_MONITOR	0x00010000	/* CAPABILITY: monitor mode */
536 #define	IEEE80211_C_DFS		0x00020000	/* CAPABILITY: DFS/radar avail*/
537 /* 0x7c0000 available */
538 #define	IEEE80211_C_WPA1	0x00800000	/* CAPABILITY: WPA1 avail */
539 #define	IEEE80211_C_WPA2	0x01000000	/* CAPABILITY: WPA2 avail */
540 #define	IEEE80211_C_WPA		0x01800000	/* CAPABILITY: WPA1+WPA2 avail*/
541 #define	IEEE80211_C_BURST	0x02000000	/* CAPABILITY: frame bursting */
542 #define	IEEE80211_C_WME		0x04000000	/* CAPABILITY: WME avail */
543 #define	IEEE80211_C_WDS		0x08000000	/* CAPABILITY: 4-addr support */
544 /* 0x10000000 reserved */
545 #define	IEEE80211_C_BGSCAN	0x20000000	/* CAPABILITY: bg scanning */
546 #define	IEEE80211_C_TXFRAG	0x40000000	/* CAPABILITY: tx fragments */
547 #define	IEEE80211_C_TDMA	0x80000000	/* CAPABILITY: TDMA avail */
548 /* XXX protection/barker? */
549 
550 #define	IEEE80211_C_OPMODE \
551 	(IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \
552 	 IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \
553 	 IEEE80211_C_TDMA)
554 
555 #define	IEEE80211_C_BITS \
556 	"\20\1STA\7FF\10TURBOP\11IBSS\12PMGT" \
557 	"\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \
558 	"\21MONITOR\22DFS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \
559 	"\37TXFRAG\40TDMA"
560 
561 /*
562  * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities
563  *
564  * NB: the low 16-bits are the 802.11 definitions, the upper
565  *     16-bits are used to define s/w/driver capabilities.
566  */
567 #define	IEEE80211_HTC_AMPDU	0x00010000	/* CAPABILITY: A-MPDU tx */
568 #define	IEEE80211_HTC_AMSDU	0x00020000	/* CAPABILITY: A-MSDU tx */
569 /* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
570 #define	IEEE80211_HTC_HT	0x00040000	/* CAPABILITY: HT operation */
571 #define	IEEE80211_HTC_SMPS	0x00080000	/* CAPABILITY: MIMO power save*/
572 #define	IEEE80211_HTC_RIFS	0x00100000	/* CAPABILITY: RIFS support */
573 
574 #define	IEEE80211_C_HTCAP_BITS \
575 	"\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
576 	"\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS"
577 
578 void	ieee80211_ifattach(struct ieee80211com *);
579 void	ieee80211_ifdetach(struct ieee80211com *);
580 int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
581 		const char name[IFNAMSIZ], int unit, int opmode, int flags,
582 		const uint8_t bssid[IEEE80211_ADDR_LEN],
583 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
584 int	ieee80211_vap_attach(struct ieee80211vap *,
585 		ifm_change_cb_t, ifm_stat_cb_t);
586 void	ieee80211_vap_detach(struct ieee80211vap *);
587 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
588 		const struct ieee80211_channel *);
589 void	ieee80211_announce(struct ieee80211com *);
590 void	ieee80211_announce_channels(struct ieee80211com *);
591 void	ieee80211_drain(struct ieee80211com *);
592 void	ieee80211_media_init(struct ieee80211com *);
593 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
594 int	ieee80211_media_change(struct ifnet *);
595 void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
596 int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
597 int	ieee80211_rate2media(struct ieee80211com *, int,
598 		enum ieee80211_phymode);
599 int	ieee80211_media2rate(int);
600 int	ieee80211_mhz2ieee(u_int, u_int);
601 int	ieee80211_chan2ieee(struct ieee80211com *,
602 		const struct ieee80211_channel *);
603 u_int	ieee80211_ieee2mhz(u_int, u_int);
604 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
605 		int freq, int flags);
606 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
607 		int ieee, int flags);
608 int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
609 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
610 
611 /*
612  * Key update synchronization methods.  XXX should not be visible.
613  */
614 static __inline void
615 ieee80211_key_update_begin(struct ieee80211vap *vap)
616 {
617 	vap->iv_key_update_begin(vap);
618 }
619 static __inline void
620 ieee80211_key_update_end(struct ieee80211vap *vap)
621 {
622 	vap->iv_key_update_end(vap);
623 }
624 
625 /*
626  * XXX these need to be here for IEEE80211_F_DATAPAD
627  */
628 
629 /*
630  * Return the space occupied by the 802.11 header and any
631  * padding required by the driver.  This works for a
632  * management or data frame.
633  */
634 static __inline int
635 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
636 {
637 	int size = ieee80211_hdrsize(data);
638 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
639 		size = roundup(size, sizeof(uint32_t));
640 	return size;
641 }
642 
643 /*
644  * Like ieee80211_hdrspace, but handles any type of frame.
645  */
646 static __inline int
647 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
648 {
649 	int size = ieee80211_anyhdrsize(data);
650 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
651 		size = roundup(size, sizeof(uint32_t));
652 	return size;
653 }
654 
655 /*
656  * Notify a vap that beacon state has been updated.
657  */
658 static __inline void
659 ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
660 {
661 	if (vap->iv_state == IEEE80211_S_RUN)
662 		vap->iv_update_beacon(vap, what);
663 }
664 
665 /*
666  * Calculate HT channel promotion flags for a channel.
667  * XXX belongs in ieee80211_ht.h but needs IEEE80211_FEXT_*
668  */
669 static __inline int
670 ieee80211_htchanflags(const struct ieee80211_channel *c)
671 {
672 	return IEEE80211_IS_CHAN_HT40(c) ?
673 	    IEEE80211_FEXT_HT | IEEE80211_FEXT_USEHT40 :
674 	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FEXT_HT : 0;
675 }
676 
677 /*
678  * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
679  *
680  * The intent is that any problem in the net80211 layer can be
681  * diagnosed by inspecting the statistics (dumped by the wlanstats
682  * program) and/or the msgs generated by net80211.  Messages are
683  * broken into functional classes and can be controlled with the
684  * wlandebug program.  Certain of these msg groups are for facilities
685  * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1X).
686  */
687 #define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
688 #define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
689 #define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
690 #define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
691 #define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
692 #define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
693 #define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
694 #define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
695 #define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
696 #define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
697 #define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
698 #define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
699 #define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
700 #define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
701 #define	IEEE80211_MSG_DOT1X	0x00020000	/* 802.1x authenticator */
702 #define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
703 #define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
704 #define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
705 #define	IEEE80211_MSG_RADKEYS	0x00002000	/* dump 802.1x keys */
706 #define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
707 #define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
708 #define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
709 #define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
710 #define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
711 #define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
712 #define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
713 #define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
714 #define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
715 #define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
716 #define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
717 #define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
718 
719 #define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
720 
721 #define	IEEE80211_MSG_BITS \
722 	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
723 	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22DOT1X" \
724 	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
725 	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
726 
727 #ifdef IEEE80211_DEBUG
728 #define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
729 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
730 	if (ieee80211_msg(_vap, _m))					\
731 		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
732 } while (0)
733 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
734 	if (ieee80211_msg(_vap, _m))					\
735 		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
736 } while (0)
737 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
738 	if (ieee80211_msg(_vap, _m))					\
739 		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
740 } while (0)
741 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
742 	if (ieee80211_msg(_vap, _m))					\
743 		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
744 } while (0)
745 void	ieee80211_note(struct ieee80211vap *, const char *, ...);
746 void	ieee80211_note_mac(struct ieee80211vap *,
747 		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
748 void	ieee80211_note_frame(struct ieee80211vap *,
749 		const struct ieee80211_frame *, const char *, ...);
750 #define	ieee80211_msg_debug(_vap) \
751 	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
752 #define	ieee80211_msg_dumppkts(_vap) \
753 	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
754 #define	ieee80211_msg_input(_vap) \
755 	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
756 #define	ieee80211_msg_radius(_vap) \
757 	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
758 #define	ieee80211_msg_dumpradius(_vap) \
759 	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
760 #define	ieee80211_msg_dumpradkeys(_vap) \
761 	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
762 #define	ieee80211_msg_scan(_vap) \
763 	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
764 #define	ieee80211_msg_assoc(_vap) \
765 	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
766 
767 /*
768  * Emit a debug message about discarding a frame or information
769  * element.  One format is for extracting the mac address from
770  * the frame header; the other is for when a header is not
771  * available or otherwise appropriate.
772  */
773 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
774 	if ((_vap)->iv_debug & (_m))					\
775 		ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
776 } while (0)
777 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
778 	if ((_vap)->iv_debug & (_m))					\
779 		ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
780 } while (0)
781 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
782 	if ((_vap)->iv_debug & (_m))					\
783 		ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
784 } while (0)
785 
786 void ieee80211_discard_frame(struct ieee80211vap *,
787 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
788 void ieee80211_discard_ie(struct ieee80211vap *,
789 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
790 void ieee80211_discard_mac(struct ieee80211vap *,
791 	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
792 	const char *fmt, ...);
793 #else
794 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
795 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
796 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
797 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
798 #define	ieee80211_msg_dumppkts(_vap)	0
799 #define	ieee80211_msg(_vap, _m)		0
800 
801 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
802 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
803 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
804 #endif
805 
806 #endif /* _NET80211_IEEE80211_VAR_H_ */
807