xref: /freebsd/sys/net80211/ieee80211_freebsd.h (revision 3157ba21)
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 
57 /*
58  * Node locking definitions.
59  */
60 typedef struct {
61 	char		name[16];		/* e.g. "ath0_node_lock" */
62 	struct mtx	mtx;
63 } ieee80211_node_lock_t;
64 #define	IEEE80211_NODE_LOCK_INIT(_nt, _name) do {			\
65 	ieee80211_node_lock_t *nl = &(_nt)->nt_nodelock;		\
66 	snprintf(nl->name, sizeof(nl->name), "%s_node_lock", _name);	\
67 	mtx_init(&nl->mtx, nl->name, NULL, MTX_DEF | MTX_RECURSE);	\
68 } while (0)
69 #define	IEEE80211_NODE_LOCK_OBJ(_nt)	(&(_nt)->nt_nodelock.mtx)
70 #define	IEEE80211_NODE_LOCK_DESTROY(_nt) \
71 	mtx_destroy(IEEE80211_NODE_LOCK_OBJ(_nt))
72 #define	IEEE80211_NODE_LOCK(_nt) \
73 	mtx_lock(IEEE80211_NODE_LOCK_OBJ(_nt))
74 #define	IEEE80211_NODE_IS_LOCKED(_nt) \
75 	mtx_owned(IEEE80211_NODE_LOCK_OBJ(_nt))
76 #define	IEEE80211_NODE_UNLOCK(_nt) \
77 	mtx_unlock(IEEE80211_NODE_LOCK_OBJ(_nt))
78 #define	IEEE80211_NODE_LOCK_ASSERT(_nt)	\
79 	mtx_assert(IEEE80211_NODE_LOCK_OBJ(_nt), MA_OWNED)
80 
81 /*
82  * Node table iteration locking definitions; this protects the
83  * scan generation # used to iterate over the station table
84  * while grabbing+releasing the node lock.
85  */
86 typedef struct {
87 	char		name[16];		/* e.g. "ath0_scan_lock" */
88 	struct mtx	mtx;
89 } ieee80211_scan_lock_t;
90 #define	IEEE80211_NODE_ITERATE_LOCK_INIT(_nt, _name) do {		\
91 	ieee80211_scan_lock_t *sl = &(_nt)->nt_scanlock;		\
92 	snprintf(sl->name, sizeof(sl->name), "%s_scan_lock", _name);	\
93 	mtx_init(&sl->mtx, sl->name, NULL, MTX_DEF);			\
94 } while (0)
95 #define	IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt)	(&(_nt)->nt_scanlock.mtx)
96 #define	IEEE80211_NODE_ITERATE_LOCK_DESTROY(_nt) \
97 	mtx_destroy(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
98 #define	IEEE80211_NODE_ITERATE_LOCK(_nt) \
99 	mtx_lock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
100 #define	IEEE80211_NODE_ITERATE_UNLOCK(_nt) \
101 	mtx_unlock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
102 
103 /*
104  * Power-save queue definitions.
105  */
106 typedef struct mtx ieee80211_psq_lock_t;
107 #define	IEEE80211_PSQ_INIT(_psq, _name) \
108 	mtx_init(&(_psq)->psq_lock, _name, "802.11 ps q", MTX_DEF)
109 #define	IEEE80211_PSQ_DESTROY(_psq)	mtx_destroy(&(_psq)->psq_lock)
110 #define	IEEE80211_PSQ_LOCK(_psq)	mtx_lock(&(_psq)->psq_lock)
111 #define	IEEE80211_PSQ_UNLOCK(_psq)	mtx_unlock(&(_psq)->psq_lock)
112 
113 #ifndef IF_PREPEND_LIST
114 #define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {	\
115 	(mtail)->m_nextpkt = (ifq)->ifq_head;			\
116 	if ((ifq)->ifq_tail == NULL)				\
117 		(ifq)->ifq_tail = (mtail);			\
118 	(ifq)->ifq_head = (mhead);				\
119 	(ifq)->ifq_len += (mcount);				\
120 } while (0)
121 #define IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {		\
122 	IF_LOCK(ifq);						\
123 	_IF_PREPEND_LIST(ifq, mhead, mtail, mcount);		\
124 	IF_UNLOCK(ifq);						\
125 } while (0)
126 #endif /* IF_PREPEND_LIST */
127 
128 /*
129  * Age queue definitions.
130  */
131 typedef struct mtx ieee80211_ageq_lock_t;
132 #define	IEEE80211_AGEQ_INIT(_aq, _name) \
133 	mtx_init(&(_aq)->aq_lock, _name, "802.11 age q", MTX_DEF)
134 #define	IEEE80211_AGEQ_DESTROY(_aq)	mtx_destroy(&(_aq)->aq_lock)
135 #define	IEEE80211_AGEQ_LOCK(_aq)	mtx_lock(&(_aq)->aq_lock)
136 #define	IEEE80211_AGEQ_UNLOCK(_aq)	mtx_unlock(&(_aq)->aq_lock)
137 
138 /*
139  * 802.1x MAC ACL database locking definitions.
140  */
141 typedef struct mtx acl_lock_t;
142 #define	ACL_LOCK_INIT(_as, _name) \
143 	mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF)
144 #define	ACL_LOCK_DESTROY(_as)		mtx_destroy(&(_as)->as_lock)
145 #define	ACL_LOCK(_as)			mtx_lock(&(_as)->as_lock)
146 #define	ACL_UNLOCK(_as)			mtx_unlock(&(_as)->as_lock)
147 #define	ACL_LOCK_ASSERT(_as) \
148 	mtx_assert((&(_as)->as_lock), MA_OWNED)
149 
150 /*
151  * Scan table definitions.
152  */
153 typedef struct mtx ieee80211_scan_table_lock_t;
154 #define	IEEE80211_SCAN_TABLE_LOCK_INIT(_st, _name) \
155 	mtx_init(&(_st)->st_lock, _name, "802.11 scan table", MTX_DEF)
156 #define	IEEE80211_SCAN_TABLE_LOCK_DESTROY(_st)	mtx_destroy(&(_st)->st_lock)
157 #define	IEEE80211_SCAN_TABLE_LOCK(_st)		mtx_lock(&(_st)->st_lock)
158 #define	IEEE80211_SCAN_TABLE_UNLOCK(_st)	mtx_unlock(&(_st)->st_lock)
159 
160 /*
161  * Node reference counting definitions.
162  *
163  * ieee80211_node_initref	initialize the reference count to 1
164  * ieee80211_node_incref	add a reference
165  * ieee80211_node_decref	remove a reference
166  * ieee80211_node_dectestref	remove a reference and return 1 if this
167  *				is the last reference, otherwise 0
168  * ieee80211_node_refcnt	reference count for printing (only)
169  */
170 #include <machine/atomic.h>
171 
172 #define ieee80211_node_initref(_ni) \
173 	do { ((_ni)->ni_refcnt = 1); } while (0)
174 #define ieee80211_node_incref(_ni) \
175 	atomic_add_int(&(_ni)->ni_refcnt, 1)
176 #define	ieee80211_node_decref(_ni) \
177 	atomic_subtract_int(&(_ni)->ni_refcnt, 1)
178 struct ieee80211_node;
179 int	ieee80211_node_dectestref(struct ieee80211_node *ni);
180 #define	ieee80211_node_refcnt(_ni)	(_ni)->ni_refcnt
181 
182 struct ifqueue;
183 struct ieee80211vap;
184 void	ieee80211_drain_ifq(struct ifqueue *);
185 void	ieee80211_flush_ifq(struct ifqueue *, struct ieee80211vap *);
186 
187 void	ieee80211_vap_destroy(struct ieee80211vap *);
188 
189 #define	IFNET_IS_UP_RUNNING(_ifp) \
190 	(((_ifp)->if_flags & IFF_UP) && \
191 	 ((_ifp)->if_drv_flags & IFF_DRV_RUNNING))
192 
193 #define	msecs_to_ticks(ms)	(((ms)*hz)/1000)
194 #define	ticks_to_msecs(t)	(1000*(t) / hz)
195 #define	ticks_to_secs(t)	((t) / hz)
196 #define time_after(a,b) 	((long)(b) - (long)(a) < 0)
197 #define time_before(a,b)	time_after(b,a)
198 #define time_after_eq(a,b)	((long)(a) - (long)(b) >= 0)
199 #define time_before_eq(a,b)	time_after_eq(b,a)
200 
201 struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen);
202 
203 /* tx path usage */
204 #define	M_ENCAP		M_PROTO1		/* 802.11 encap done */
205 #define	M_EAPOL		M_PROTO3		/* PAE/EAPOL frame */
206 #define	M_PWR_SAV	M_PROTO4		/* bypass PS handling */
207 #define	M_MORE_DATA	M_PROTO5		/* more data frames to follow */
208 #define	M_FF		M_PROTO6		/* fast frame */
209 #define	M_TXCB		M_PROTO7		/* do tx complete callback */
210 #define	M_AMPDU_MPDU	M_PROTO8		/* ok for A-MPDU aggregation */
211 #define	M_80211_TX \
212 	(M_FRAG|M_FIRSTFRAG|M_LASTFRAG|M_ENCAP|M_EAPOL|M_PWR_SAV|\
213 	 M_MORE_DATA|M_FF|M_TXCB|M_AMPDU_MPDU)
214 
215 /* rx path usage */
216 #define	M_AMPDU		M_PROTO1		/* A-MPDU subframe */
217 #define	M_WEP		M_PROTO2		/* WEP done by hardware */
218 #if 0
219 #define	M_AMPDU_MPDU	M_PROTO8		/* A-MPDU re-order done */
220 #endif
221 #define	M_80211_RX	(M_AMPDU|M_WEP|M_AMPDU_MPDU)
222 
223 #define	IEEE80211_MBUF_TX_FLAG_BITS \
224 	"\20\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_ENCAP\6M_WEP\7M_EAPOL" \
225 	"\10M_PWR_SAV\11M_MORE_DATA\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
226 	"\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
227 	"\23M_NOFREE\24M_FF\25M_TXCB\26M_AMPDU_MPDU\27M_FLOWID"
228 
229 #define	IEEE80211_MBUF_RX_FLAG_BITS \
230 	"\20\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_AMPDU\6M_WEP\7M_PROTO3" \
231 	"\10M_PROTO4\11M_PROTO5\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
232 	"\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
233 	"\23M_NOFREE\24M_PROTO6\25M_PROTO7\26M_AMPDU_MPDU\27M_FLOWID"
234 
235 /*
236  * Store WME access control bits in the vlan tag.
237  * This is safe since it's done after the packet is classified
238  * (where we use any previous tag) and because it's passed
239  * directly in to the driver and there's no chance someone
240  * else will clobber them on us.
241  */
242 #define	M_WME_SETAC(m, ac) \
243 	((m)->m_pkthdr.ether_vtag = (ac))
244 #define	M_WME_GETAC(m)	((m)->m_pkthdr.ether_vtag)
245 
246 /*
247  * Mbufs on the power save queue are tagged with an age and
248  * timed out.  We reuse the hardware checksum field in the
249  * mbuf packet header to store this data.
250  */
251 #define	M_AGE_SET(m,v)		(m->m_pkthdr.csum_data = v)
252 #define	M_AGE_GET(m)		(m->m_pkthdr.csum_data)
253 #define	M_AGE_SUB(m,adj)	(m->m_pkthdr.csum_data -= adj)
254 
255 /*
256  * Store the sequence number.
257  */
258 #define	M_SEQNO_SET(m, seqno) \
259 	((m)->m_pkthdr.tso_segsz = (seqno))
260 #define	M_SEQNO_GET(m)	((m)->m_pkthdr.tso_segsz)
261 
262 #define	MTAG_ABI_NET80211	1132948340	/* net80211 ABI */
263 
264 struct ieee80211_cb {
265 	void	(*func)(struct ieee80211_node *, void *, int status);
266 	void	*arg;
267 };
268 #define	NET80211_TAG_CALLBACK	0	/* xmit complete callback */
269 int	ieee80211_add_callback(struct mbuf *m,
270 		void (*func)(struct ieee80211_node *, void *, int), void *arg);
271 void	ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int);
272 
273 void	get_random_bytes(void *, size_t);
274 
275 struct ieee80211com;
276 
277 void	ieee80211_sysctl_attach(struct ieee80211com *);
278 void	ieee80211_sysctl_detach(struct ieee80211com *);
279 void	ieee80211_sysctl_vattach(struct ieee80211vap *);
280 void	ieee80211_sysctl_vdetach(struct ieee80211vap *);
281 
282 SYSCTL_DECL(_net_wlan);
283 int	ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS);
284 
285 void	ieee80211_load_module(const char *);
286 
287 /*
288  * A "policy module" is an adjunct module to net80211 that provides
289  * functionality that typically includes policy decisions.  This
290  * modularity enables extensibility and vendor-supplied functionality.
291  */
292 #define	_IEEE80211_POLICY_MODULE(policy, name, version)			\
293 typedef void (*policy##_setup)(int);					\
294 SET_DECLARE(policy##_set, policy##_setup);				\
295 static int								\
296 wlan_##name##_modevent(module_t mod, int type, void *unused)		\
297 {									\
298 	policy##_setup * const *iter, f;				\
299 	switch (type) {							\
300 	case MOD_LOAD:							\
301 		SET_FOREACH(iter, policy##_set) {			\
302 			f = (void*) *iter;				\
303 			f(type);					\
304 		}							\
305 		return 0;						\
306 	case MOD_UNLOAD:						\
307 	case MOD_QUIESCE:						\
308 		if (nrefs) {						\
309 			printf("wlan_##name: still in use (%u dynamic refs)\n",\
310 				nrefs);					\
311 			return EBUSY;					\
312 		}							\
313 		if (type == MOD_UNLOAD) {				\
314 			SET_FOREACH(iter, policy##_set) {		\
315 				f = (void*) *iter;			\
316 				f(type);				\
317 			}						\
318 		}							\
319 		return 0;						\
320 	}								\
321 	return EINVAL;							\
322 }									\
323 static moduledata_t name##_mod = {					\
324 	"wlan_" #name,							\
325 	wlan_##name##_modevent,						\
326 	0								\
327 };									\
328 DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
329 MODULE_VERSION(wlan_##name, version);					\
330 MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1)
331 
332 /*
333  * Crypto modules implement cipher support.
334  */
335 #define	IEEE80211_CRYPTO_MODULE(name, version)				\
336 _IEEE80211_POLICY_MODULE(crypto, name, version);			\
337 static void								\
338 name##_modevent(int type)						\
339 {									\
340 	if (type == MOD_LOAD)						\
341 		ieee80211_crypto_register(&name);			\
342 	else								\
343 		ieee80211_crypto_unregister(&name);			\
344 }									\
345 TEXT_SET(crypto##_set, name##_modevent)
346 
347 /*
348  * Scanner modules provide scanning policy.
349  */
350 #define	IEEE80211_SCANNER_MODULE(name, version)				\
351 	_IEEE80211_POLICY_MODULE(scanner, name, version)
352 
353 #define	IEEE80211_SCANNER_ALG(name, alg, v)				\
354 static void								\
355 name##_modevent(int type)						\
356 {									\
357 	if (type == MOD_LOAD)						\
358 		ieee80211_scanner_register(alg, &v);			\
359 	else								\
360 		ieee80211_scanner_unregister(alg, &v);			\
361 }									\
362 TEXT_SET(scanner_set, name##_modevent);					\
363 
364 /*
365  * ACL modules implement acl policy.
366  */
367 #define	IEEE80211_ACL_MODULE(name, alg, version)			\
368 _IEEE80211_POLICY_MODULE(acl, name, version);				\
369 static void								\
370 alg##_modevent(int type)						\
371 {									\
372 	if (type == MOD_LOAD)						\
373 		ieee80211_aclator_register(&alg);			\
374 	else								\
375 		ieee80211_aclator_unregister(&alg);			\
376 }									\
377 TEXT_SET(acl_set, alg##_modevent);					\
378 
379 /*
380  * Authenticator modules handle 802.1x/WPA authentication.
381  */
382 #define	IEEE80211_AUTH_MODULE(name, version)				\
383 	_IEEE80211_POLICY_MODULE(auth, name, version)
384 
385 #define	IEEE80211_AUTH_ALG(name, alg, v)				\
386 static void								\
387 name##_modevent(int type)						\
388 {									\
389 	if (type == MOD_LOAD)						\
390 		ieee80211_authenticator_register(alg, &v);		\
391 	else								\
392 		ieee80211_authenticator_unregister(alg);		\
393 }									\
394 TEXT_SET(auth_set, name##_modevent)
395 
396 /*
397  * Rate control modules provide tx rate control support.
398  */
399 #define	IEEE80211_RATECTL_MODULE(alg, version)				\
400 	_IEEE80211_POLICY_MODULE(ratectl, alg, version);		\
401 
402 #define	IEEE80211_RATECTL_ALG(name, alg, v)				\
403 static void								\
404 alg##_modevent(int type)						\
405 {									\
406 	if (type == MOD_LOAD)						\
407 		ieee80211_ratectl_register(alg, &v);			\
408 	else								\
409 		ieee80211_ratectl_unregister(alg);			\
410 }									\
411 TEXT_SET(ratectl##_set, alg##_modevent)
412 
413 struct ieee80211req;
414 typedef int ieee80211_ioctl_getfunc(struct ieee80211vap *,
415     struct ieee80211req *);
416 SET_DECLARE(ieee80211_ioctl_getset, ieee80211_ioctl_getfunc);
417 #define	IEEE80211_IOCTL_GET(_name, _get) TEXT_SET(ieee80211_ioctl_getset, _get)
418 
419 typedef int ieee80211_ioctl_setfunc(struct ieee80211vap *,
420     struct ieee80211req *);
421 SET_DECLARE(ieee80211_ioctl_setset, ieee80211_ioctl_setfunc);
422 #define	IEEE80211_IOCTL_SET(_name, _set) TEXT_SET(ieee80211_ioctl_setset, _set)
423 #endif /* _KERNEL */
424 
425 /* XXX this stuff belongs elsewhere */
426 /*
427  * Message formats for messages from the net80211 layer to user
428  * applications via the routing socket.  These messages are appended
429  * to an if_announcemsghdr structure.
430  */
431 struct ieee80211_join_event {
432 	uint8_t		iev_addr[6];
433 };
434 
435 struct ieee80211_leave_event {
436 	uint8_t		iev_addr[6];
437 };
438 
439 struct ieee80211_replay_event {
440 	uint8_t		iev_src[6];	/* src MAC */
441 	uint8_t		iev_dst[6];	/* dst MAC */
442 	uint8_t		iev_cipher;	/* cipher type */
443 	uint8_t		iev_keyix;	/* key id/index */
444 	uint64_t	iev_keyrsc;	/* RSC from key */
445 	uint64_t	iev_rsc;	/* RSC from frame */
446 };
447 
448 struct ieee80211_michael_event {
449 	uint8_t		iev_src[6];	/* src MAC */
450 	uint8_t		iev_dst[6];	/* dst MAC */
451 	uint8_t		iev_cipher;	/* cipher type */
452 	uint8_t		iev_keyix;	/* key id/index */
453 };
454 
455 struct ieee80211_wds_event {
456 	uint8_t		iev_addr[6];
457 };
458 
459 struct ieee80211_csa_event {
460 	uint32_t	iev_flags;	/* channel flags */
461 	uint16_t	iev_freq;	/* setting in Mhz */
462 	uint8_t		iev_ieee;	/* IEEE channel number */
463 	uint8_t		iev_mode;	/* CSA mode */
464 	uint8_t		iev_count;	/* CSA count */
465 };
466 
467 struct ieee80211_cac_event {
468 	uint32_t	iev_flags;	/* channel flags */
469 	uint16_t	iev_freq;	/* setting in Mhz */
470 	uint8_t		iev_ieee;	/* IEEE channel number */
471 	/* XXX timestamp? */
472 	uint8_t		iev_type;	/* IEEE80211_NOTIFY_CAC_* */
473 };
474 
475 struct ieee80211_radar_event {
476 	uint32_t	iev_flags;	/* channel flags */
477 	uint16_t	iev_freq;	/* setting in Mhz */
478 	uint8_t		iev_ieee;	/* IEEE channel number */
479 	/* XXX timestamp? */
480 };
481 
482 struct ieee80211_auth_event {
483 	uint8_t		iev_addr[6];
484 };
485 
486 struct ieee80211_deauth_event {
487 	uint8_t		iev_addr[6];
488 };
489 
490 struct ieee80211_country_event {
491 	uint8_t		iev_addr[6];
492 	uint8_t		iev_cc[2];	/* ISO country code */
493 };
494 
495 struct ieee80211_radio_event {
496 	uint8_t		iev_state;	/* 1 on, 0 off */
497 };
498 
499 #define	RTM_IEEE80211_ASSOC	100	/* station associate (bss mode) */
500 #define	RTM_IEEE80211_REASSOC	101	/* station re-associate (bss mode) */
501 #define	RTM_IEEE80211_DISASSOC	102	/* station disassociate (bss mode) */
502 #define	RTM_IEEE80211_JOIN	103	/* station join (ap mode) */
503 #define	RTM_IEEE80211_LEAVE	104	/* station leave (ap mode) */
504 #define	RTM_IEEE80211_SCAN	105	/* scan complete, results available */
505 #define	RTM_IEEE80211_REPLAY	106	/* sequence counter replay detected */
506 #define	RTM_IEEE80211_MICHAEL	107	/* Michael MIC failure detected */
507 #define	RTM_IEEE80211_REJOIN	108	/* station re-associate (ap mode) */
508 #define	RTM_IEEE80211_WDS	109	/* WDS discovery (ap mode) */
509 #define	RTM_IEEE80211_CSA	110	/* Channel Switch Announcement event */
510 #define	RTM_IEEE80211_RADAR	111	/* radar event */
511 #define	RTM_IEEE80211_CAC	112	/* Channel Availability Check event */
512 #define	RTM_IEEE80211_DEAUTH	113	/* station deauthenticate */
513 #define	RTM_IEEE80211_AUTH	114	/* station authenticate (ap mode) */
514 #define	RTM_IEEE80211_COUNTRY	115	/* discovered country code (sta mode) */
515 #define	RTM_IEEE80211_RADIO	116	/* RF kill switch state change */
516 
517 /*
518  * Structure prepended to raw packets sent through the bpf
519  * interface when set to DLT_IEEE802_11_RADIO.  This allows
520  * user applications to specify pretty much everything in
521  * an Atheros tx descriptor.  XXX need to generalize.
522  *
523  * XXX cannot be more than 14 bytes as it is copied to a sockaddr's
524  * XXX sa_data area.
525  */
526 struct ieee80211_bpf_params {
527 	uint8_t		ibp_vers;	/* version */
528 #define	IEEE80211_BPF_VERSION	0
529 	uint8_t		ibp_len;	/* header length in bytes */
530 	uint8_t		ibp_flags;
531 #define	IEEE80211_BPF_SHORTPRE	0x01	/* tx with short preamble */
532 #define	IEEE80211_BPF_NOACK	0x02	/* tx with no ack */
533 #define	IEEE80211_BPF_CRYPTO	0x04	/* tx with h/w encryption */
534 #define	IEEE80211_BPF_FCS	0x10	/* frame incldues FCS */
535 #define	IEEE80211_BPF_DATAPAD	0x20	/* frame includes data padding */
536 #define	IEEE80211_BPF_RTS	0x40	/* tx with RTS/CTS */
537 #define	IEEE80211_BPF_CTS	0x80	/* tx with CTS only */
538 	uint8_t		ibp_pri;	/* WME/WMM AC+tx antenna */
539 	uint8_t		ibp_try0;	/* series 1 try count */
540 	uint8_t		ibp_rate0;	/* series 1 IEEE tx rate */
541 	uint8_t		ibp_power;	/* tx power (device units) */
542 	uint8_t		ibp_ctsrate;	/* IEEE tx rate for CTS */
543 	uint8_t		ibp_try1;	/* series 2 try count */
544 	uint8_t		ibp_rate1;	/* series 2 IEEE tx rate */
545 	uint8_t		ibp_try2;	/* series 3 try count */
546 	uint8_t		ibp_rate2;	/* series 3 IEEE tx rate */
547 	uint8_t		ibp_try3;	/* series 4 try count */
548 	uint8_t		ibp_rate3;	/* series 4 IEEE tx rate */
549 };
550 #endif /* _NET80211_IEEE80211_FREEBSD_H_ */
551