xref: /freebsd/sys/net80211/ieee80211_proto.h (revision 396c556d77189a5c474d35cec6f44a762e310b7d)
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_PROTO_H_
29 #define _NET80211_IEEE80211_PROTO_H_
30 
31 /*
32  * 802.11 protocol implementation definitions.
33  */
34 
35 enum ieee80211_state {
36 	IEEE80211_S_INIT	= 0,	/* default state */
37 	IEEE80211_S_SCAN	= 1,	/* scanning */
38 	IEEE80211_S_AUTH	= 2,	/* try to authenticate */
39 	IEEE80211_S_ASSOC	= 3,	/* try to assoc */
40 	IEEE80211_S_CAC		= 4,	/* doing channel availability check */
41 	IEEE80211_S_RUN		= 5,	/* operational (e.g. associated) */
42 	IEEE80211_S_CSA		= 6,	/* channel switch announce pending */
43 	IEEE80211_S_SLEEP	= 7,	/* power save */
44 };
45 #define	IEEE80211_S_MAX		(IEEE80211_S_SLEEP+1)
46 
47 #define	IEEE80211_SEND_MGMT(_ni,_type,_arg) \
48 	((*(_ni)->ni_ic->ic_send_mgmt)(_ni, _type, _arg))
49 
50 extern	const char *mgt_subtype_name[];
51 extern	const char *ctl_subtype_name[];
52 extern	const char *ieee80211_phymode_name[IEEE80211_MODE_MAX];
53 extern	const int ieee80211_opcap[IEEE80211_OPMODE_MAX];
54 
55 static __inline const char *
56 ieee80211_mgt_subtype_name(uint8_t subtype)
57 {
58 	return mgt_subtype_name[(subtype & IEEE80211_FC0_SUBTYPE_MASK) >>
59 		   IEEE80211_FC0_SUBTYPE_SHIFT];
60 }
61 
62 static __inline const char *
63 ieee80211_ctl_subtype_name(uint8_t subtype)
64 {
65 	return ctl_subtype_name[(subtype & IEEE80211_FC0_SUBTYPE_MASK) >>
66 		   IEEE80211_FC0_SUBTYPE_SHIFT];
67 }
68 
69 const char *ieee80211_reason_to_string(uint16_t);
70 
71 void	ieee80211_proto_attach(struct ieee80211com *);
72 void	ieee80211_proto_detach(struct ieee80211com *);
73 void	ieee80211_proto_vattach(struct ieee80211vap *);
74 void	ieee80211_proto_vdetach(struct ieee80211vap *);
75 
76 void	ieee80211_promisc(struct ieee80211vap *, bool);
77 void	ieee80211_allmulti(struct ieee80211vap *, bool);
78 void	ieee80211_syncflag(struct ieee80211vap *, int flag);
79 void	ieee80211_syncflag_ht(struct ieee80211vap *, int flag);
80 void	ieee80211_syncflag_vht(struct ieee80211vap *, int flag);
81 void	ieee80211_syncflag_ext(struct ieee80211vap *, int flag);
82 
83 #define	ieee80211_input(ni, m, rssi, nf) \
84 	((ni)->ni_vap->iv_input(ni, m, NULL, rssi, nf))
85 int	ieee80211_input_all(struct ieee80211com *, struct mbuf *, int, int);
86 
87 int	ieee80211_input_mimo(struct ieee80211_node *, struct mbuf *);
88 int	ieee80211_input_mimo_all(struct ieee80211com *, struct mbuf *);
89 
90 struct ieee80211_bpf_params;
91 int	ieee80211_mgmt_output(struct ieee80211_node *, struct mbuf *, int,
92 		struct ieee80211_bpf_params *);
93 int	ieee80211_raw_xmit(struct ieee80211_node *, struct mbuf *,
94 		const struct ieee80211_bpf_params *);
95 int	ieee80211_output(struct ifnet *, struct mbuf *,
96                const struct sockaddr *, struct route *ro);
97 int	ieee80211_vap_pkt_send_dest(struct ieee80211vap *, struct mbuf *,
98 		struct ieee80211_node *);
99 int	ieee80211_raw_output(struct ieee80211vap *, struct ieee80211_node *,
100 		struct mbuf *, const struct ieee80211_bpf_params *);
101 void	ieee80211_send_setup(struct ieee80211_node *, struct mbuf *, int, int,
102         const uint8_t [IEEE80211_ADDR_LEN], const uint8_t [IEEE80211_ADDR_LEN],
103         const uint8_t [IEEE80211_ADDR_LEN]);
104 int	ieee80211_vap_transmit(struct ifnet *ifp, struct mbuf *m);
105 void	ieee80211_vap_qflush(struct ifnet *ifp);
106 int	ieee80211_send_nulldata(struct ieee80211_node *);
107 int	ieee80211_classify(struct ieee80211_node *, struct mbuf *m);
108 struct mbuf *ieee80211_mbuf_adjust(struct ieee80211vap *, int,
109 		struct ieee80211_key *, struct mbuf *);
110 struct mbuf *ieee80211_encap(struct ieee80211vap *, struct ieee80211_node *,
111 		struct mbuf *);
112 void	ieee80211_free_mbuf(struct mbuf *);
113 int	ieee80211_send_mgmt(struct ieee80211_node *, int, int);
114 struct ieee80211_appie;
115 int	ieee80211_send_probereq(struct ieee80211_node *ni,
116 		const uint8_t sa[IEEE80211_ADDR_LEN],
117 		const uint8_t da[IEEE80211_ADDR_LEN],
118 		const uint8_t bssid[IEEE80211_ADDR_LEN],
119 		const uint8_t *ssid, size_t ssidlen);
120 struct mbuf *	ieee80211_ff_encap1(struct ieee80211vap *, struct mbuf *,
121 		const struct ether_header *);
122 void	ieee80211_tx_complete(struct ieee80211_node *,
123 		struct mbuf *, int);
124 
125 /*
126  * The formation of ProbeResponse frames requires guidance to
127  * deal with legacy clients.  When the client is identified as
128  * "legacy 11b" ieee80211_send_proberesp is passed this token.
129  */
130 #define	IEEE80211_SEND_LEGACY_11B	0x1	/* legacy 11b client */
131 #define	IEEE80211_SEND_LEGACY_11	0x2	/* other legacy client */
132 #define	IEEE80211_SEND_LEGACY		0x3	/* any legacy client */
133 struct mbuf *ieee80211_alloc_proberesp(struct ieee80211_node *, int);
134 int	ieee80211_send_proberesp(struct ieee80211vap *,
135 		const uint8_t da[IEEE80211_ADDR_LEN], int);
136 struct mbuf *ieee80211_alloc_rts(struct ieee80211com *ic,
137 		const uint8_t [IEEE80211_ADDR_LEN],
138 		const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
139 struct mbuf *ieee80211_alloc_cts(struct ieee80211com *,
140 		const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
141 
142 uint8_t *ieee80211_add_rates(uint8_t *, const struct ieee80211_rateset *);
143 uint8_t *ieee80211_add_xrates(uint8_t *, const struct ieee80211_rateset *);
144 uint8_t *ieee80211_add_ssid(uint8_t *, const uint8_t *, u_int);
145 uint8_t *ieee80211_add_wpa(uint8_t *, const struct ieee80211vap *);
146 uint8_t *ieee80211_add_rsn(uint8_t *, const struct ieee80211vap *);
147 uint8_t *ieee80211_add_qos(uint8_t *, const struct ieee80211_node *);
148 uint16_t ieee80211_getcapinfo(struct ieee80211vap *,
149 		struct ieee80211_channel *);
150 struct ieee80211_wme_state;
151 uint8_t * ieee80211_add_wme_info(uint8_t *frm, struct ieee80211_wme_state *wme);
152 
153 void	ieee80211_reset_erp(struct ieee80211com *);
154 void	ieee80211_set_shortslottime(struct ieee80211com *, int onoff);
155 int	ieee80211_iserp_rateset(const struct ieee80211_rateset *);
156 void	ieee80211_setbasicrates(struct ieee80211_rateset *,
157 		enum ieee80211_phymode);
158 void	ieee80211_addbasicrates(struct ieee80211_rateset *,
159 		enum ieee80211_phymode);
160 
161 /*
162  * Return the size of the 802.11 header for a management or data frame.
163  */
164 static __inline int
165 ieee80211_hdrsize(const void *data)
166 {
167 	const struct ieee80211_frame *wh = data;
168 	int size = sizeof(struct ieee80211_frame);
169 
170 	/* NB: we don't handle control frames */
171 	KASSERT((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_CTL,
172 		("%s: control frame", __func__));
173 	if (IEEE80211_IS_DSTODS(wh))
174 		size += IEEE80211_ADDR_LEN;
175 	if (IEEE80211_QOS_HAS_SEQ(wh))
176 		size += sizeof(uint16_t);
177 	return size;
178 }
179 
180 /*
181  * Like ieee80211_hdrsize, but handles any type of frame.
182  */
183 static __inline int
184 ieee80211_anyhdrsize(const void *data)
185 {
186 	const struct ieee80211_frame *wh = data;
187 
188 	if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) {
189 		switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
190 		case IEEE80211_FC0_SUBTYPE_CTS:
191 		case IEEE80211_FC0_SUBTYPE_ACK:
192 			return sizeof(struct ieee80211_frame_ack);
193 		case IEEE80211_FC0_SUBTYPE_BAR:
194 			return sizeof(struct ieee80211_frame_bar);
195 		}
196 		return sizeof(struct ieee80211_frame_min);
197 	} else
198 		return ieee80211_hdrsize(data);
199 }
200 
201 /*
202  * Template for an in-kernel authenticator.  Authenticators
203  * register with the protocol code and are typically loaded
204  * as separate modules as needed.  One special authenticator
205  * is xauth; it intercepts requests so that protocols like
206  * WPA can be handled in user space.
207  */
208 struct ieee80211_authenticator {
209 	const char *ia_name;		/* printable name */
210 	int	(*ia_attach)(struct ieee80211vap *);
211 	void	(*ia_detach)(struct ieee80211vap *);
212 	void	(*ia_node_join)(struct ieee80211_node *);
213 	void	(*ia_node_leave)(struct ieee80211_node *);
214 };
215 void	ieee80211_authenticator_register(int type,
216 		const struct ieee80211_authenticator *);
217 void	ieee80211_authenticator_unregister(int type);
218 const struct ieee80211_authenticator *ieee80211_authenticator_get(int auth);
219 
220 struct ieee80211req;
221 /*
222  * Template for an MAC ACL policy module.  Such modules
223  * register with the protocol code and are passed the sender's
224  * address of each received auth frame for validation.
225  */
226 struct ieee80211_aclator {
227 	const char *iac_name;		/* printable name */
228 	int	(*iac_attach)(struct ieee80211vap *);
229 	void	(*iac_detach)(struct ieee80211vap *);
230 	int	(*iac_check)(struct ieee80211vap *,
231 			const struct ieee80211_frame *wh);
232 	int	(*iac_add)(struct ieee80211vap *,
233 			const uint8_t mac[IEEE80211_ADDR_LEN]);
234 	int	(*iac_remove)(struct ieee80211vap *,
235 			const uint8_t mac[IEEE80211_ADDR_LEN]);
236 	int	(*iac_flush)(struct ieee80211vap *);
237 	int	(*iac_setpolicy)(struct ieee80211vap *, int);
238 	int	(*iac_getpolicy)(struct ieee80211vap *);
239 	int	(*iac_setioctl)(struct ieee80211vap *, struct ieee80211req *);
240 	int	(*iac_getioctl)(struct ieee80211vap *, struct ieee80211req *);
241 };
242 void	ieee80211_aclator_register(const struct ieee80211_aclator *);
243 void	ieee80211_aclator_unregister(const struct ieee80211_aclator *);
244 const struct ieee80211_aclator *ieee80211_aclator_get(const char *name);
245 
246 /* flags for ieee80211_fix_rate() */
247 #define	IEEE80211_F_DOSORT	0x00000001	/* sort rate list */
248 #define	IEEE80211_F_DOFRATE	0x00000002	/* use fixed legacy rate */
249 #define	IEEE80211_F_DONEGO	0x00000004	/* calc negotiated rate */
250 #define	IEEE80211_F_DODEL	0x00000008	/* delete ignore rate */
251 #define	IEEE80211_F_DOBRS	0x00000010	/* check basic rate set */
252 #define	IEEE80211_F_JOIN	0x00000020	/* sta joining our bss */
253 #define	IEEE80211_F_DOFMCS	0x00000040	/* use fixed HT rate */
254 int	ieee80211_fix_rate(struct ieee80211_node *,
255 		struct ieee80211_rateset *, int);
256 
257 /*
258  * WME/WMM support.
259  */
260 struct wmeParams {
261 	uint8_t		wmep_acm;
262 	uint8_t		wmep_aifsn;
263 	uint8_t		wmep_logcwmin;		/* log2(cwmin) */
264 	uint8_t		wmep_logcwmax;		/* log2(cwmax) */
265 	uint8_t		wmep_txopLimit;
266 	uint8_t		wmep_noackPolicy;	/* 0 (ack), 1 (no ack) */
267 };
268 #define	IEEE80211_TXOP_TO_US(_txop)	((_txop)<<5)
269 #define	IEEE80211_US_TO_TXOP(_us)	((_us)>>5)
270 
271 struct chanAccParams {
272 	uint8_t		cap_info;		/* version of the current set */
273 	struct wmeParams cap_wmeParams[WME_NUM_AC];
274 };
275 
276 struct ieee80211_wme_state {
277 	u_int	wme_flags;
278 #define	WME_F_AGGRMODE	0x00000001	/* STATUS: WME aggressive mode */
279 	u_int	wme_hipri_traffic;	/* VI/VO frames in beacon interval */
280 	u_int	wme_hipri_switch_thresh;/* aggressive mode switch thresh */
281 	u_int	wme_hipri_switch_hysteresis;/* aggressive mode switch hysteresis */
282 
283 	struct wmeParams wme_params[4];		/* from assoc resp for each AC*/
284 	struct chanAccParams wme_wmeChanParams;	/* WME params applied to self */
285 	struct chanAccParams wme_wmeBssChanParams;/* WME params bcast to stations */
286 	struct chanAccParams wme_chanParams;	/* params applied to self */
287 	struct chanAccParams wme_bssChanParams;	/* params bcast to stations */
288 
289 	int	(*wme_update)(struct ieee80211com *);
290 };
291 
292 void	ieee80211_wme_initparams(struct ieee80211vap *);
293 void	ieee80211_wme_updateparams(struct ieee80211vap *);
294 void	ieee80211_wme_updateparams_locked(struct ieee80211vap *);
295 void	ieee80211_wme_vap_getparams(struct ieee80211vap *vap,
296 	    struct chanAccParams *);
297 void	ieee80211_wme_ic_getparams(struct ieee80211com *ic,
298 	    struct chanAccParams *);
299 
300 /*
301  * Return the WME TID from a QoS frame.  If no TID
302  * is present return the index for the "non-QoS" entry.
303  */
304 static __inline uint8_t
305 ieee80211_gettid(const struct ieee80211_frame *wh)
306 {
307 	uint8_t tid;
308 
309 	if (IEEE80211_QOS_HAS_SEQ(wh)) {
310 		if (IEEE80211_IS_DSTODS(wh))
311 			tid = ((const struct ieee80211_qosframe_addr4 *)wh)->
312 				i_qos[0];
313 		else
314 			tid = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
315 		tid &= IEEE80211_QOS_TID;
316 	} else
317 		tid = IEEE80211_NONQOS_TID;
318 	return tid;
319 }
320 
321 void	ieee80211_waitfor_parent(struct ieee80211com *);
322 void	ieee80211_start_locked(struct ieee80211vap *);
323 void	ieee80211_init(void *);
324 void	ieee80211_start_all(struct ieee80211com *);
325 void	ieee80211_stop_locked(struct ieee80211vap *);
326 void	ieee80211_stop(struct ieee80211vap *);
327 void	ieee80211_stop_all(struct ieee80211com *);
328 void	ieee80211_suspend_all(struct ieee80211com *);
329 void	ieee80211_resume_all(struct ieee80211com *);
330 void	ieee80211_restart_all(struct ieee80211com *);
331 void	ieee80211_dturbo_switch(struct ieee80211vap *, int newflags);
332 void	ieee80211_swbmiss(void *arg);
333 void	ieee80211_beacon_miss(struct ieee80211com *);
334 int	ieee80211_new_state(struct ieee80211vap *, enum ieee80211_state, int);
335 int	ieee80211_new_state_locked(struct ieee80211vap *, enum ieee80211_state,
336 		int);
337 void	ieee80211_print_essid(const uint8_t *, int);
338 void	ieee80211_dump_pkt(struct ieee80211com *,
339 		const uint8_t *, int, int, int);
340 
341 extern 	const char *ieee80211_opmode_name[];
342 extern	const char *ieee80211_state_name[IEEE80211_S_MAX];
343 extern	const char *ieee80211_wme_acnames[];
344 
345 /*
346  * Beacon frames constructed by ieee80211_beacon_alloc
347  * have the following structure filled in so drivers
348  * can update the frame later w/ minimal overhead.
349  */
350 struct ieee80211_beacon_offsets {
351 	uint8_t		bo_flags[4];	/* update/state flags */
352 	uint16_t	*bo_caps;	/* capabilities */
353 	uint8_t		*bo_cfp;	/* start of CFParms element */
354 	uint8_t		*bo_tim;	/* start of atim/dtim */
355 	uint8_t		*bo_wme;	/* start of WME parameters */
356 	uint8_t		*bo_tdma;	/* start of TDMA parameters */
357 	uint8_t		*bo_tim_trailer;/* start of fixed-size trailer */
358 	uint16_t	bo_tim_len;	/* atim/dtim length in bytes */
359 	uint16_t	bo_tim_trailer_len;/* tim trailer length in bytes */
360 	uint8_t		*bo_erp;	/* start of ERP element */
361 	uint8_t		*bo_htinfo;	/* start of HT info element */
362 	uint8_t		*bo_ath;	/* start of ATH parameters */
363 	uint8_t		*bo_appie;	/* start of AppIE element */
364 	uint16_t	bo_appie_len;	/* AppIE length in bytes */
365 	uint16_t	bo_csa_trailer_len;
366 	uint8_t		*bo_csa;	/* start of CSA element */
367 	uint8_t		*bo_quiet;	/* start of Quiet element */
368 	uint8_t		*bo_meshconf;	/* start of MESHCONF element */
369 	uint8_t		*bo_vhtinfo;	/* start of VHT info element (XXX VHTCAP?) */
370 	uint8_t		*bo_spare[2];
371 };
372 struct mbuf *ieee80211_beacon_alloc(struct ieee80211_node *);
373 
374 /*
375  * Beacon frame updates are signaled through calls to iv_update_beacon
376  * with one of the IEEE80211_BEACON_* tokens defined below.  For devices
377  * that construct beacon frames on the host this can trigger a rebuild
378  * or defer the processing.  For devices that offload beacon frame
379  * handling this callback can be used to signal a rebuild.  The bo_flags
380  * array in the ieee80211_beacon_offsets structure is intended to record
381  * deferred processing requirements; ieee80211_beacon_update uses the
382  * state to optimize work.  Since this structure is owned by the driver
383  * and not visible to the 802.11 layer drivers must supply an iv_update_beacon
384  * callback that marks the flag bits and schedules (as necessary) an update.
385  */
386 enum {
387 	IEEE80211_BEACON_CAPS	= 0,	/* capabilities */
388 	IEEE80211_BEACON_TIM	= 1,	/* DTIM/ATIM */
389 	IEEE80211_BEACON_WME	= 2,
390 	IEEE80211_BEACON_ERP	= 3,	/* Extended Rate Phy */
391 	IEEE80211_BEACON_HTINFO	= 4,	/* HT Information */
392 	IEEE80211_BEACON_APPIE	= 5,	/* Application IE's */
393 	IEEE80211_BEACON_CFP	= 6,	/* CFParms */
394 	IEEE80211_BEACON_CSA	= 7,	/* Channel Switch Announcement */
395 	IEEE80211_BEACON_TDMA	= 9,	/* TDMA Info */
396 	IEEE80211_BEACON_ATH	= 10,	/* ATH parameters */
397 	IEEE80211_BEACON_MESHCONF = 11,	/* Mesh Configuration */
398 	IEEE80211_BEACON_QUIET	= 12,	/* Quiet time IE */
399 	IEEE80211_BEACON_VHTINFO	= 13,	/* VHT information */
400 };
401 int	ieee80211_beacon_update(struct ieee80211_node *,
402 		struct mbuf *, int mcast);
403 
404 void	ieee80211_csa_startswitch(struct ieee80211com *,
405 		struct ieee80211_channel *, int mode, int count);
406 void	ieee80211_csa_completeswitch(struct ieee80211com *);
407 void	ieee80211_csa_cancelswitch(struct ieee80211com *);
408 void	ieee80211_cac_completeswitch(struct ieee80211vap *);
409 
410 /*
411  * Notification methods called from the 802.11 state machine.
412  * Note that while these are defined here, their implementation
413  * is OS-specific.
414  */
415 void	ieee80211_notify_node_join(struct ieee80211_node *, int newassoc);
416 void	ieee80211_notify_node_leave(struct ieee80211_node *);
417 void	ieee80211_notify_scan_done(struct ieee80211vap *);
418 void	ieee80211_notify_wds_discover(struct ieee80211_node *);
419 void	ieee80211_notify_csa(struct ieee80211com *,
420 		const struct ieee80211_channel *, int mode, int count);
421 void	ieee80211_notify_radar(struct ieee80211com *,
422 		const struct ieee80211_channel *);
423 enum ieee80211_notify_cac_event {
424 	IEEE80211_NOTIFY_CAC_START  = 0, /* CAC timer started */
425 	IEEE80211_NOTIFY_CAC_STOP   = 1, /* CAC intentionally stopped */
426 	IEEE80211_NOTIFY_CAC_RADAR  = 2, /* CAC stopped due to radar detectio */
427 	IEEE80211_NOTIFY_CAC_EXPIRE = 3, /* CAC expired w/o radar */
428 };
429 void	ieee80211_notify_cac(struct ieee80211com *,
430 		const struct ieee80211_channel *,
431 		enum ieee80211_notify_cac_event);
432 void	ieee80211_notify_node_deauth(struct ieee80211_node *);
433 void	ieee80211_notify_node_auth(struct ieee80211_node *);
434 void	ieee80211_notify_country(struct ieee80211vap *, const uint8_t [],
435 		const uint8_t cc[2]);
436 void	ieee80211_notify_radio(struct ieee80211com *, int);
437 #endif /* _NET80211_IEEE80211_PROTO_H_ */
438