xref: /freebsd/sys/net80211/ieee80211_freebsd.h (revision 955c8cbb4960e6cf3602de144b1b9154a5092968)
1 /*-
2  * Copyright (c) 2003-2008 Sam Leffler, Errno Consulting
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  *
25  * $FreeBSD$
26  */
27 #ifndef _NET80211_IEEE80211_FREEBSD_H_
28 #define _NET80211_IEEE80211_FREEBSD_H_
29 
30 #ifdef _KERNEL
31 #include <sys/param.h>
32 #include <sys/lock.h>
33 #include <sys/mutex.h>
34 #include <sys/rwlock.h>
35 #include <sys/sysctl.h>
36 #include <sys/taskqueue.h>
37 
38 /*
39  * Common state locking definitions.
40  */
41 typedef struct {
42 	char		name[16];		/* e.g. "ath0_com_lock" */
43 	struct mtx	mtx;
44 } ieee80211_com_lock_t;
45 #define	IEEE80211_LOCK_INIT(_ic, _name) do {				\
46 	ieee80211_com_lock_t *cl = &(_ic)->ic_comlock;			\
47 	snprintf(cl->name, sizeof(cl->name), "%s_com_lock", _name);	\
48 	mtx_init(&cl->mtx, cl->name, NULL, MTX_DEF | MTX_RECURSE);	\
49 } while (0)
50 #define	IEEE80211_LOCK_OBJ(_ic)	(&(_ic)->ic_comlock.mtx)
51 #define	IEEE80211_LOCK_DESTROY(_ic) mtx_destroy(IEEE80211_LOCK_OBJ(_ic))
52 #define	IEEE80211_LOCK(_ic)	   mtx_lock(IEEE80211_LOCK_OBJ(_ic))
53 #define	IEEE80211_UNLOCK(_ic)	   mtx_unlock(IEEE80211_LOCK_OBJ(_ic))
54 #define	IEEE80211_LOCK_ASSERT(_ic) \
55 	mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_OWNED)
56 #define	IEEE80211_UNLOCK_ASSERT(_ic) \
57 	mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_NOTOWNED)
58 
59 /*
60  * Node locking definitions.
61  */
62 typedef struct {
63 	char		name[16];		/* e.g. "ath0_node_lock" */
64 	struct mtx	mtx;
65 } ieee80211_node_lock_t;
66 #define	IEEE80211_NODE_LOCK_INIT(_nt, _name) do {			\
67 	ieee80211_node_lock_t *nl = &(_nt)->nt_nodelock;		\
68 	snprintf(nl->name, sizeof(nl->name), "%s_node_lock", _name);	\
69 	mtx_init(&nl->mtx, nl->name, NULL, MTX_DEF | MTX_RECURSE);	\
70 } while (0)
71 #define	IEEE80211_NODE_LOCK_OBJ(_nt)	(&(_nt)->nt_nodelock.mtx)
72 #define	IEEE80211_NODE_LOCK_DESTROY(_nt) \
73 	mtx_destroy(IEEE80211_NODE_LOCK_OBJ(_nt))
74 #define	IEEE80211_NODE_LOCK(_nt) \
75 	mtx_lock(IEEE80211_NODE_LOCK_OBJ(_nt))
76 #define	IEEE80211_NODE_IS_LOCKED(_nt) \
77 	mtx_owned(IEEE80211_NODE_LOCK_OBJ(_nt))
78 #define	IEEE80211_NODE_UNLOCK(_nt) \
79 	mtx_unlock(IEEE80211_NODE_LOCK_OBJ(_nt))
80 #define	IEEE80211_NODE_LOCK_ASSERT(_nt)	\
81 	mtx_assert(IEEE80211_NODE_LOCK_OBJ(_nt), MA_OWNED)
82 
83 /*
84  * Node table iteration locking definitions; this protects the
85  * scan generation # used to iterate over the station table
86  * while grabbing+releasing the node lock.
87  */
88 typedef struct {
89 	char		name[16];		/* e.g. "ath0_scan_lock" */
90 	struct mtx	mtx;
91 } ieee80211_scan_lock_t;
92 #define	IEEE80211_NODE_ITERATE_LOCK_INIT(_nt, _name) do {		\
93 	ieee80211_scan_lock_t *sl = &(_nt)->nt_scanlock;		\
94 	snprintf(sl->name, sizeof(sl->name), "%s_scan_lock", _name);	\
95 	mtx_init(&sl->mtx, sl->name, NULL, MTX_DEF);			\
96 } while (0)
97 #define	IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt)	(&(_nt)->nt_scanlock.mtx)
98 #define	IEEE80211_NODE_ITERATE_LOCK_DESTROY(_nt) \
99 	mtx_destroy(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
100 #define	IEEE80211_NODE_ITERATE_LOCK(_nt) \
101 	mtx_lock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
102 #define	IEEE80211_NODE_ITERATE_UNLOCK(_nt) \
103 	mtx_unlock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
104 
105 /*
106  * Power-save queue definitions.
107  */
108 typedef struct mtx ieee80211_psq_lock_t;
109 #define	IEEE80211_PSQ_INIT(_psq, _name) \
110 	mtx_init(&(_psq)->psq_lock, _name, "802.11 ps q", MTX_DEF)
111 #define	IEEE80211_PSQ_DESTROY(_psq)	mtx_destroy(&(_psq)->psq_lock)
112 #define	IEEE80211_PSQ_LOCK(_psq)	mtx_lock(&(_psq)->psq_lock)
113 #define	IEEE80211_PSQ_UNLOCK(_psq)	mtx_unlock(&(_psq)->psq_lock)
114 
115 #ifndef IF_PREPEND_LIST
116 #define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {	\
117 	(mtail)->m_nextpkt = (ifq)->ifq_head;			\
118 	if ((ifq)->ifq_tail == NULL)				\
119 		(ifq)->ifq_tail = (mtail);			\
120 	(ifq)->ifq_head = (mhead);				\
121 	(ifq)->ifq_len += (mcount);				\
122 } while (0)
123 #define IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {		\
124 	IF_LOCK(ifq);						\
125 	_IF_PREPEND_LIST(ifq, mhead, mtail, mcount);		\
126 	IF_UNLOCK(ifq);						\
127 } while (0)
128 #endif /* IF_PREPEND_LIST */
129 
130 /*
131  * Age queue definitions.
132  */
133 typedef struct mtx ieee80211_ageq_lock_t;
134 #define	IEEE80211_AGEQ_INIT(_aq, _name) \
135 	mtx_init(&(_aq)->aq_lock, _name, "802.11 age q", MTX_DEF)
136 #define	IEEE80211_AGEQ_DESTROY(_aq)	mtx_destroy(&(_aq)->aq_lock)
137 #define	IEEE80211_AGEQ_LOCK(_aq)	mtx_lock(&(_aq)->aq_lock)
138 #define	IEEE80211_AGEQ_UNLOCK(_aq)	mtx_unlock(&(_aq)->aq_lock)
139 
140 /*
141  * 802.1x MAC ACL database locking definitions.
142  */
143 typedef struct mtx acl_lock_t;
144 #define	ACL_LOCK_INIT(_as, _name) \
145 	mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF)
146 #define	ACL_LOCK_DESTROY(_as)		mtx_destroy(&(_as)->as_lock)
147 #define	ACL_LOCK(_as)			mtx_lock(&(_as)->as_lock)
148 #define	ACL_UNLOCK(_as)			mtx_unlock(&(_as)->as_lock)
149 #define	ACL_LOCK_ASSERT(_as) \
150 	mtx_assert((&(_as)->as_lock), MA_OWNED)
151 
152 /*
153  * Scan table definitions.
154  */
155 typedef struct mtx ieee80211_scan_table_lock_t;
156 #define	IEEE80211_SCAN_TABLE_LOCK_INIT(_st, _name) \
157 	mtx_init(&(_st)->st_lock, _name, "802.11 scan table", MTX_DEF)
158 #define	IEEE80211_SCAN_TABLE_LOCK_DESTROY(_st)	mtx_destroy(&(_st)->st_lock)
159 #define	IEEE80211_SCAN_TABLE_LOCK(_st)		mtx_lock(&(_st)->st_lock)
160 #define	IEEE80211_SCAN_TABLE_UNLOCK(_st)	mtx_unlock(&(_st)->st_lock)
161 
162 /*
163  * Node reference counting definitions.
164  *
165  * ieee80211_node_initref	initialize the reference count to 1
166  * ieee80211_node_incref	add a reference
167  * ieee80211_node_decref	remove a reference
168  * ieee80211_node_dectestref	remove a reference and return 1 if this
169  *				is the last reference, otherwise 0
170  * ieee80211_node_refcnt	reference count for printing (only)
171  */
172 #include <machine/atomic.h>
173 
174 #define ieee80211_node_initref(_ni) \
175 	do { ((_ni)->ni_refcnt = 1); } while (0)
176 #define ieee80211_node_incref(_ni) \
177 	atomic_add_int(&(_ni)->ni_refcnt, 1)
178 #define	ieee80211_node_decref(_ni) \
179 	atomic_subtract_int(&(_ni)->ni_refcnt, 1)
180 struct ieee80211_node;
181 int	ieee80211_node_dectestref(struct ieee80211_node *ni);
182 #define	ieee80211_node_refcnt(_ni)	(_ni)->ni_refcnt
183 
184 struct ifqueue;
185 struct ieee80211vap;
186 void	ieee80211_drain_ifq(struct ifqueue *);
187 void	ieee80211_flush_ifq(struct ifqueue *, struct ieee80211vap *);
188 
189 void	ieee80211_vap_destroy(struct ieee80211vap *);
190 
191 #define	IFNET_IS_UP_RUNNING(_ifp) \
192 	(((_ifp)->if_flags & IFF_UP) && \
193 	 ((_ifp)->if_drv_flags & IFF_DRV_RUNNING))
194 
195 #define	msecs_to_ticks(ms)	(((ms)*hz)/1000)
196 #define	ticks_to_msecs(t)	(1000*(t) / hz)
197 #define	ticks_to_secs(t)	((t) / hz)
198 #define time_after(a,b) 	((long)(b) - (long)(a) < 0)
199 #define time_before(a,b)	time_after(b,a)
200 #define time_after_eq(a,b)	((long)(a) - (long)(b) >= 0)
201 #define time_before_eq(a,b)	time_after_eq(b,a)
202 
203 struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen);
204 
205 /* tx path usage */
206 #define	M_ENCAP		M_PROTO1		/* 802.11 encap done */
207 #define	M_EAPOL		M_PROTO3		/* PAE/EAPOL frame */
208 #define	M_PWR_SAV	M_PROTO4		/* bypass PS handling */
209 #define	M_MORE_DATA	M_PROTO5		/* more data frames to follow */
210 #define	M_FF		M_PROTO6		/* fast frame */
211 #define	M_TXCB		M_PROTO7		/* do tx complete callback */
212 #define	M_AMPDU_MPDU	M_PROTO8		/* ok for A-MPDU aggregation */
213 #define	M_80211_TX \
214 	(M_FRAG|M_FIRSTFRAG|M_LASTFRAG|M_ENCAP|M_EAPOL|M_PWR_SAV|\
215 	 M_MORE_DATA|M_FF|M_TXCB|M_AMPDU_MPDU)
216 
217 /* rx path usage */
218 #define	M_AMPDU		M_PROTO1		/* A-MPDU subframe */
219 #define	M_WEP		M_PROTO2		/* WEP done by hardware */
220 #if 0
221 #define	M_AMPDU_MPDU	M_PROTO8		/* A-MPDU re-order done */
222 #endif
223 #define	M_80211_RX	(M_AMPDU|M_WEP|M_AMPDU_MPDU)
224 
225 #define	IEEE80211_MBUF_TX_FLAG_BITS \
226 	"\20\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_ENCAP\6M_WEP\7M_EAPOL" \
227 	"\10M_PWR_SAV\11M_MORE_DATA\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
228 	"\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
229 	"\23M_NOFREE\24M_FF\25M_TXCB\26M_AMPDU_MPDU\27M_FLOWID"
230 
231 #define	IEEE80211_MBUF_RX_FLAG_BITS \
232 	"\20\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_AMPDU\6M_WEP\7M_PROTO3" \
233 	"\10M_PROTO4\11M_PROTO5\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
234 	"\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
235 	"\23M_NOFREE\24M_PROTO6\25M_PROTO7\26M_AMPDU_MPDU\27M_FLOWID"
236 
237 /*
238  * Store WME access control bits in the vlan tag.
239  * This is safe since it's done after the packet is classified
240  * (where we use any previous tag) and because it's passed
241  * directly in to the driver and there's no chance someone
242  * else will clobber them on us.
243  */
244 #define	M_WME_SETAC(m, ac) \
245 	((m)->m_pkthdr.ether_vtag = (ac))
246 #define	M_WME_GETAC(m)	((m)->m_pkthdr.ether_vtag)
247 
248 /*
249  * Mbufs on the power save queue are tagged with an age and
250  * timed out.  We reuse the hardware checksum field in the
251  * mbuf packet header to store this data.
252  */
253 #define	M_AGE_SET(m,v)		(m->m_pkthdr.csum_data = v)
254 #define	M_AGE_GET(m)		(m->m_pkthdr.csum_data)
255 #define	M_AGE_SUB(m,adj)	(m->m_pkthdr.csum_data -= adj)
256 
257 /*
258  * Store the sequence number.
259  */
260 #define	M_SEQNO_SET(m, seqno) \
261 	((m)->m_pkthdr.tso_segsz = (seqno))
262 #define	M_SEQNO_GET(m)	((m)->m_pkthdr.tso_segsz)
263 
264 #define	MTAG_ABI_NET80211	1132948340	/* net80211 ABI */
265 
266 struct ieee80211_cb {
267 	void	(*func)(struct ieee80211_node *, void *, int status);
268 	void	*arg;
269 };
270 #define	NET80211_TAG_CALLBACK	0	/* xmit complete callback */
271 int	ieee80211_add_callback(struct mbuf *m,
272 		void (*func)(struct ieee80211_node *, void *, int), void *arg);
273 void	ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int);
274 
275 void	get_random_bytes(void *, size_t);
276 
277 struct ieee80211com;
278 
279 void	ieee80211_sysctl_attach(struct ieee80211com *);
280 void	ieee80211_sysctl_detach(struct ieee80211com *);
281 void	ieee80211_sysctl_vattach(struct ieee80211vap *);
282 void	ieee80211_sysctl_vdetach(struct ieee80211vap *);
283 
284 SYSCTL_DECL(_net_wlan);
285 int	ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS);
286 
287 void	ieee80211_load_module(const char *);
288 
289 /*
290  * A "policy module" is an adjunct module to net80211 that provides
291  * functionality that typically includes policy decisions.  This
292  * modularity enables extensibility and vendor-supplied functionality.
293  */
294 #define	_IEEE80211_POLICY_MODULE(policy, name, version)			\
295 typedef void (*policy##_setup)(int);					\
296 SET_DECLARE(policy##_set, policy##_setup);				\
297 static int								\
298 wlan_##name##_modevent(module_t mod, int type, void *unused)		\
299 {									\
300 	policy##_setup * const *iter, f;				\
301 	switch (type) {							\
302 	case MOD_LOAD:							\
303 		SET_FOREACH(iter, policy##_set) {			\
304 			f = (void*) *iter;				\
305 			f(type);					\
306 		}							\
307 		return 0;						\
308 	case MOD_UNLOAD:						\
309 	case MOD_QUIESCE:						\
310 		if (nrefs) {						\
311 			printf("wlan_##name: still in use (%u dynamic refs)\n",\
312 				nrefs);					\
313 			return EBUSY;					\
314 		}							\
315 		if (type == MOD_UNLOAD) {				\
316 			SET_FOREACH(iter, policy##_set) {		\
317 				f = (void*) *iter;			\
318 				f(type);				\
319 			}						\
320 		}							\
321 		return 0;						\
322 	}								\
323 	return EINVAL;							\
324 }									\
325 static moduledata_t name##_mod = {					\
326 	"wlan_" #name,							\
327 	wlan_##name##_modevent,						\
328 	0								\
329 };									\
330 DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
331 MODULE_VERSION(wlan_##name, version);					\
332 MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1)
333 
334 /*
335  * Crypto modules implement cipher support.
336  */
337 #define	IEEE80211_CRYPTO_MODULE(name, version)				\
338 _IEEE80211_POLICY_MODULE(crypto, name, version);			\
339 static void								\
340 name##_modevent(int type)						\
341 {									\
342 	if (type == MOD_LOAD)						\
343 		ieee80211_crypto_register(&name);			\
344 	else								\
345 		ieee80211_crypto_unregister(&name);			\
346 }									\
347 TEXT_SET(crypto##_set, name##_modevent)
348 
349 /*
350  * Scanner modules provide scanning policy.
351  */
352 #define	IEEE80211_SCANNER_MODULE(name, version)				\
353 	_IEEE80211_POLICY_MODULE(scanner, name, version)
354 
355 #define	IEEE80211_SCANNER_ALG(name, alg, v)				\
356 static void								\
357 name##_modevent(int type)						\
358 {									\
359 	if (type == MOD_LOAD)						\
360 		ieee80211_scanner_register(alg, &v);			\
361 	else								\
362 		ieee80211_scanner_unregister(alg, &v);			\
363 }									\
364 TEXT_SET(scanner_set, name##_modevent);					\
365 
366 /*
367  * ACL modules implement acl policy.
368  */
369 #define	IEEE80211_ACL_MODULE(name, alg, version)			\
370 _IEEE80211_POLICY_MODULE(acl, name, version);				\
371 static void								\
372 alg##_modevent(int type)						\
373 {									\
374 	if (type == MOD_LOAD)						\
375 		ieee80211_aclator_register(&alg);			\
376 	else								\
377 		ieee80211_aclator_unregister(&alg);			\
378 }									\
379 TEXT_SET(acl_set, alg##_modevent);					\
380 
381 /*
382  * Authenticator modules handle 802.1x/WPA authentication.
383  */
384 #define	IEEE80211_AUTH_MODULE(name, version)				\
385 	_IEEE80211_POLICY_MODULE(auth, name, version)
386 
387 #define	IEEE80211_AUTH_ALG(name, alg, v)				\
388 static void								\
389 name##_modevent(int type)						\
390 {									\
391 	if (type == MOD_LOAD)						\
392 		ieee80211_authenticator_register(alg, &v);		\
393 	else								\
394 		ieee80211_authenticator_unregister(alg);		\
395 }									\
396 TEXT_SET(auth_set, name##_modevent)
397 
398 /*
399  * Rate control modules provide tx rate control support.
400  */
401 #define	IEEE80211_RATECTL_MODULE(alg, version)				\
402 	_IEEE80211_POLICY_MODULE(ratectl, alg, version);		\
403 
404 #define	IEEE80211_RATECTL_ALG(name, alg, v)				\
405 static void								\
406 alg##_modevent(int type)						\
407 {									\
408 	if (type == MOD_LOAD)						\
409 		ieee80211_ratectl_register(alg, &v);			\
410 	else								\
411 		ieee80211_ratectl_unregister(alg);			\
412 }									\
413 TEXT_SET(ratectl##_set, alg##_modevent)
414 
415 struct ieee80211req;
416 typedef int ieee80211_ioctl_getfunc(struct ieee80211vap *,
417     struct ieee80211req *);
418 SET_DECLARE(ieee80211_ioctl_getset, ieee80211_ioctl_getfunc);
419 #define	IEEE80211_IOCTL_GET(_name, _get) TEXT_SET(ieee80211_ioctl_getset, _get)
420 
421 typedef int ieee80211_ioctl_setfunc(struct ieee80211vap *,
422     struct ieee80211req *);
423 SET_DECLARE(ieee80211_ioctl_setset, ieee80211_ioctl_setfunc);
424 #define	IEEE80211_IOCTL_SET(_name, _set) TEXT_SET(ieee80211_ioctl_setset, _set)
425 #endif /* _KERNEL */
426 
427 /* XXX this stuff belongs elsewhere */
428 /*
429  * Message formats for messages from the net80211 layer to user
430  * applications via the routing socket.  These messages are appended
431  * to an if_announcemsghdr structure.
432  */
433 struct ieee80211_join_event {
434 	uint8_t		iev_addr[6];
435 };
436 
437 struct ieee80211_leave_event {
438 	uint8_t		iev_addr[6];
439 };
440 
441 struct ieee80211_replay_event {
442 	uint8_t		iev_src[6];	/* src MAC */
443 	uint8_t		iev_dst[6];	/* dst MAC */
444 	uint8_t		iev_cipher;	/* cipher type */
445 	uint8_t		iev_keyix;	/* key id/index */
446 	uint64_t	iev_keyrsc;	/* RSC from key */
447 	uint64_t	iev_rsc;	/* RSC from frame */
448 };
449 
450 struct ieee80211_michael_event {
451 	uint8_t		iev_src[6];	/* src MAC */
452 	uint8_t		iev_dst[6];	/* dst MAC */
453 	uint8_t		iev_cipher;	/* cipher type */
454 	uint8_t		iev_keyix;	/* key id/index */
455 };
456 
457 struct ieee80211_wds_event {
458 	uint8_t		iev_addr[6];
459 };
460 
461 struct ieee80211_csa_event {
462 	uint32_t	iev_flags;	/* channel flags */
463 	uint16_t	iev_freq;	/* setting in Mhz */
464 	uint8_t		iev_ieee;	/* IEEE channel number */
465 	uint8_t		iev_mode;	/* CSA mode */
466 	uint8_t		iev_count;	/* CSA count */
467 };
468 
469 struct ieee80211_cac_event {
470 	uint32_t	iev_flags;	/* channel flags */
471 	uint16_t	iev_freq;	/* setting in Mhz */
472 	uint8_t		iev_ieee;	/* IEEE channel number */
473 	/* XXX timestamp? */
474 	uint8_t		iev_type;	/* IEEE80211_NOTIFY_CAC_* */
475 };
476 
477 struct ieee80211_radar_event {
478 	uint32_t	iev_flags;	/* channel flags */
479 	uint16_t	iev_freq;	/* setting in Mhz */
480 	uint8_t		iev_ieee;	/* IEEE channel number */
481 	/* XXX timestamp? */
482 };
483 
484 struct ieee80211_auth_event {
485 	uint8_t		iev_addr[6];
486 };
487 
488 struct ieee80211_deauth_event {
489 	uint8_t		iev_addr[6];
490 };
491 
492 struct ieee80211_country_event {
493 	uint8_t		iev_addr[6];
494 	uint8_t		iev_cc[2];	/* ISO country code */
495 };
496 
497 struct ieee80211_radio_event {
498 	uint8_t		iev_state;	/* 1 on, 0 off */
499 };
500 
501 #define	RTM_IEEE80211_ASSOC	100	/* station associate (bss mode) */
502 #define	RTM_IEEE80211_REASSOC	101	/* station re-associate (bss mode) */
503 #define	RTM_IEEE80211_DISASSOC	102	/* station disassociate (bss mode) */
504 #define	RTM_IEEE80211_JOIN	103	/* station join (ap mode) */
505 #define	RTM_IEEE80211_LEAVE	104	/* station leave (ap mode) */
506 #define	RTM_IEEE80211_SCAN	105	/* scan complete, results available */
507 #define	RTM_IEEE80211_REPLAY	106	/* sequence counter replay detected */
508 #define	RTM_IEEE80211_MICHAEL	107	/* Michael MIC failure detected */
509 #define	RTM_IEEE80211_REJOIN	108	/* station re-associate (ap mode) */
510 #define	RTM_IEEE80211_WDS	109	/* WDS discovery (ap mode) */
511 #define	RTM_IEEE80211_CSA	110	/* Channel Switch Announcement event */
512 #define	RTM_IEEE80211_RADAR	111	/* radar event */
513 #define	RTM_IEEE80211_CAC	112	/* Channel Availability Check event */
514 #define	RTM_IEEE80211_DEAUTH	113	/* station deauthenticate */
515 #define	RTM_IEEE80211_AUTH	114	/* station authenticate (ap mode) */
516 #define	RTM_IEEE80211_COUNTRY	115	/* discovered country code (sta mode) */
517 #define	RTM_IEEE80211_RADIO	116	/* RF kill switch state change */
518 
519 /*
520  * Structure prepended to raw packets sent through the bpf
521  * interface when set to DLT_IEEE802_11_RADIO.  This allows
522  * user applications to specify pretty much everything in
523  * an Atheros tx descriptor.  XXX need to generalize.
524  *
525  * XXX cannot be more than 14 bytes as it is copied to a sockaddr's
526  * XXX sa_data area.
527  */
528 struct ieee80211_bpf_params {
529 	uint8_t		ibp_vers;	/* version */
530 #define	IEEE80211_BPF_VERSION	0
531 	uint8_t		ibp_len;	/* header length in bytes */
532 	uint8_t		ibp_flags;
533 #define	IEEE80211_BPF_SHORTPRE	0x01	/* tx with short preamble */
534 #define	IEEE80211_BPF_NOACK	0x02	/* tx with no ack */
535 #define	IEEE80211_BPF_CRYPTO	0x04	/* tx with h/w encryption */
536 #define	IEEE80211_BPF_FCS	0x10	/* frame incldues FCS */
537 #define	IEEE80211_BPF_DATAPAD	0x20	/* frame includes data padding */
538 #define	IEEE80211_BPF_RTS	0x40	/* tx with RTS/CTS */
539 #define	IEEE80211_BPF_CTS	0x80	/* tx with CTS only */
540 	uint8_t		ibp_pri;	/* WME/WMM AC+tx antenna */
541 	uint8_t		ibp_try0;	/* series 1 try count */
542 	uint8_t		ibp_rate0;	/* series 1 IEEE tx rate */
543 	uint8_t		ibp_power;	/* tx power (device units) */
544 	uint8_t		ibp_ctsrate;	/* IEEE tx rate for CTS */
545 	uint8_t		ibp_try1;	/* series 2 try count */
546 	uint8_t		ibp_rate1;	/* series 2 IEEE tx rate */
547 	uint8_t		ibp_try2;	/* series 3 try count */
548 	uint8_t		ibp_rate2;	/* series 3 IEEE tx rate */
549 	uint8_t		ibp_try3;	/* series 4 try count */
550 	uint8_t		ibp_rate3;	/* series 4 IEEE tx rate */
551 };
552 #endif /* _NET80211_IEEE80211_FREEBSD_H_ */
553