xref: /freebsd/sys/net80211/ieee80211_freebsd.h (revision ddd5b8e9b4d8957fce018c520657cdfa4ecffad3)
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  * Transmit lock.
61  *
62  * This is a (mostly) temporary lock designed to serialise all of the
63  * transmission operations throughout the stack.
64  */
65 typedef struct {
66 	char		name[16];		/* e.g. "ath0_com_lock" */
67 	struct mtx	mtx;
68 } ieee80211_tx_lock_t;
69 #define	IEEE80211_TX_LOCK_INIT(_ic, _name) do {				\
70 	ieee80211_tx_lock_t *cl = &(_ic)->ic_txlock;			\
71 	snprintf(cl->name, sizeof(cl->name), "%s_tx_lock", _name);	\
72 	mtx_init(&cl->mtx, cl->name, NULL, MTX_DEF);	\
73 } while (0)
74 #define	IEEE80211_TX_LOCK_OBJ(_ic)	(&(_ic)->ic_txlock.mtx)
75 #define	IEEE80211_TX_LOCK_DESTROY(_ic) mtx_destroy(IEEE80211_TX_LOCK_OBJ(_ic))
76 #define	IEEE80211_TX_LOCK(_ic)	   mtx_lock(IEEE80211_TX_LOCK_OBJ(_ic))
77 #define	IEEE80211_TX_UNLOCK(_ic)	   mtx_unlock(IEEE80211_TX_LOCK_OBJ(_ic))
78 #define	IEEE80211_TX_LOCK_ASSERT(_ic) \
79 	mtx_assert(IEEE80211_TX_LOCK_OBJ(_ic), MA_OWNED)
80 #define	IEEE80211_TX_UNLOCK_ASSERT(_ic) \
81 	mtx_assert(IEEE80211_TX_LOCK_OBJ(_ic), MA_NOTOWNED)
82 
83 /*
84  * Node locking definitions.
85  */
86 typedef struct {
87 	char		name[16];		/* e.g. "ath0_node_lock" */
88 	struct mtx	mtx;
89 } ieee80211_node_lock_t;
90 #define	IEEE80211_NODE_LOCK_INIT(_nt, _name) do {			\
91 	ieee80211_node_lock_t *nl = &(_nt)->nt_nodelock;		\
92 	snprintf(nl->name, sizeof(nl->name), "%s_node_lock", _name);	\
93 	mtx_init(&nl->mtx, nl->name, NULL, MTX_DEF | MTX_RECURSE);	\
94 } while (0)
95 #define	IEEE80211_NODE_LOCK_OBJ(_nt)	(&(_nt)->nt_nodelock.mtx)
96 #define	IEEE80211_NODE_LOCK_DESTROY(_nt) \
97 	mtx_destroy(IEEE80211_NODE_LOCK_OBJ(_nt))
98 #define	IEEE80211_NODE_LOCK(_nt) \
99 	mtx_lock(IEEE80211_NODE_LOCK_OBJ(_nt))
100 #define	IEEE80211_NODE_IS_LOCKED(_nt) \
101 	mtx_owned(IEEE80211_NODE_LOCK_OBJ(_nt))
102 #define	IEEE80211_NODE_UNLOCK(_nt) \
103 	mtx_unlock(IEEE80211_NODE_LOCK_OBJ(_nt))
104 #define	IEEE80211_NODE_LOCK_ASSERT(_nt)	\
105 	mtx_assert(IEEE80211_NODE_LOCK_OBJ(_nt), MA_OWNED)
106 
107 /*
108  * Node table iteration locking definitions; this protects the
109  * scan generation # used to iterate over the station table
110  * while grabbing+releasing the node lock.
111  */
112 typedef struct {
113 	char		name[16];		/* e.g. "ath0_scan_lock" */
114 	struct mtx	mtx;
115 } ieee80211_scan_lock_t;
116 #define	IEEE80211_NODE_ITERATE_LOCK_INIT(_nt, _name) do {		\
117 	ieee80211_scan_lock_t *sl = &(_nt)->nt_scanlock;		\
118 	snprintf(sl->name, sizeof(sl->name), "%s_scan_lock", _name);	\
119 	mtx_init(&sl->mtx, sl->name, NULL, MTX_DEF);			\
120 } while (0)
121 #define	IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt)	(&(_nt)->nt_scanlock.mtx)
122 #define	IEEE80211_NODE_ITERATE_LOCK_DESTROY(_nt) \
123 	mtx_destroy(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
124 #define	IEEE80211_NODE_ITERATE_LOCK(_nt) \
125 	mtx_lock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
126 #define	IEEE80211_NODE_ITERATE_UNLOCK(_nt) \
127 	mtx_unlock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
128 
129 /*
130  * Power-save queue definitions.
131  */
132 typedef struct mtx ieee80211_psq_lock_t;
133 #define	IEEE80211_PSQ_INIT(_psq, _name) \
134 	mtx_init(&(_psq)->psq_lock, _name, "802.11 ps q", MTX_DEF)
135 #define	IEEE80211_PSQ_DESTROY(_psq)	mtx_destroy(&(_psq)->psq_lock)
136 #define	IEEE80211_PSQ_LOCK(_psq)	mtx_lock(&(_psq)->psq_lock)
137 #define	IEEE80211_PSQ_UNLOCK(_psq)	mtx_unlock(&(_psq)->psq_lock)
138 
139 #ifndef IF_PREPEND_LIST
140 #define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {	\
141 	(mtail)->m_nextpkt = (ifq)->ifq_head;			\
142 	if ((ifq)->ifq_tail == NULL)				\
143 		(ifq)->ifq_tail = (mtail);			\
144 	(ifq)->ifq_head = (mhead);				\
145 	(ifq)->ifq_len += (mcount);				\
146 } while (0)
147 #define IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {		\
148 	IF_LOCK(ifq);						\
149 	_IF_PREPEND_LIST(ifq, mhead, mtail, mcount);		\
150 	IF_UNLOCK(ifq);						\
151 } while (0)
152 #endif /* IF_PREPEND_LIST */
153 
154 /*
155  * Age queue definitions.
156  */
157 typedef struct mtx ieee80211_ageq_lock_t;
158 #define	IEEE80211_AGEQ_INIT(_aq, _name) \
159 	mtx_init(&(_aq)->aq_lock, _name, "802.11 age q", MTX_DEF)
160 #define	IEEE80211_AGEQ_DESTROY(_aq)	mtx_destroy(&(_aq)->aq_lock)
161 #define	IEEE80211_AGEQ_LOCK(_aq)	mtx_lock(&(_aq)->aq_lock)
162 #define	IEEE80211_AGEQ_UNLOCK(_aq)	mtx_unlock(&(_aq)->aq_lock)
163 
164 /*
165  * 802.1x MAC ACL database locking definitions.
166  */
167 typedef struct mtx acl_lock_t;
168 #define	ACL_LOCK_INIT(_as, _name) \
169 	mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF)
170 #define	ACL_LOCK_DESTROY(_as)		mtx_destroy(&(_as)->as_lock)
171 #define	ACL_LOCK(_as)			mtx_lock(&(_as)->as_lock)
172 #define	ACL_UNLOCK(_as)			mtx_unlock(&(_as)->as_lock)
173 #define	ACL_LOCK_ASSERT(_as) \
174 	mtx_assert((&(_as)->as_lock), MA_OWNED)
175 
176 /*
177  * Scan table definitions.
178  */
179 typedef struct mtx ieee80211_scan_table_lock_t;
180 #define	IEEE80211_SCAN_TABLE_LOCK_INIT(_st, _name) \
181 	mtx_init(&(_st)->st_lock, _name, "802.11 scan table", MTX_DEF)
182 #define	IEEE80211_SCAN_TABLE_LOCK_DESTROY(_st)	mtx_destroy(&(_st)->st_lock)
183 #define	IEEE80211_SCAN_TABLE_LOCK(_st)		mtx_lock(&(_st)->st_lock)
184 #define	IEEE80211_SCAN_TABLE_UNLOCK(_st)	mtx_unlock(&(_st)->st_lock)
185 
186 /*
187  * Node reference counting definitions.
188  *
189  * ieee80211_node_initref	initialize the reference count to 1
190  * ieee80211_node_incref	add a reference
191  * ieee80211_node_decref	remove a reference
192  * ieee80211_node_dectestref	remove a reference and return 1 if this
193  *				is the last reference, otherwise 0
194  * ieee80211_node_refcnt	reference count for printing (only)
195  */
196 #include <machine/atomic.h>
197 
198 #define ieee80211_node_initref(_ni) \
199 	do { ((_ni)->ni_refcnt = 1); } while (0)
200 #define ieee80211_node_incref(_ni) \
201 	atomic_add_int(&(_ni)->ni_refcnt, 1)
202 #define	ieee80211_node_decref(_ni) \
203 	atomic_subtract_int(&(_ni)->ni_refcnt, 1)
204 struct ieee80211_node;
205 int	ieee80211_node_dectestref(struct ieee80211_node *ni);
206 #define	ieee80211_node_refcnt(_ni)	(_ni)->ni_refcnt
207 
208 struct ifqueue;
209 struct ieee80211vap;
210 void	ieee80211_drain_ifq(struct ifqueue *);
211 void	ieee80211_flush_ifq(struct ifqueue *, struct ieee80211vap *);
212 
213 void	ieee80211_vap_destroy(struct ieee80211vap *);
214 
215 #define	IFNET_IS_UP_RUNNING(_ifp) \
216 	(((_ifp)->if_flags & IFF_UP) && \
217 	 ((_ifp)->if_drv_flags & IFF_DRV_RUNNING))
218 
219 #define	msecs_to_ticks(ms)	(((ms)*hz)/1000)
220 #define	ticks_to_msecs(t)	(1000*(t) / hz)
221 #define	ticks_to_secs(t)	((t) / hz)
222 #define time_after(a,b) 	((long)(b) - (long)(a) < 0)
223 #define time_before(a,b)	time_after(b,a)
224 #define time_after_eq(a,b)	((long)(a) - (long)(b) >= 0)
225 #define time_before_eq(a,b)	time_after_eq(b,a)
226 
227 struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen);
228 
229 /* tx path usage */
230 #define	M_ENCAP		M_PROTO1		/* 802.11 encap done */
231 #define	M_EAPOL		M_PROTO3		/* PAE/EAPOL frame */
232 #define	M_PWR_SAV	M_PROTO4		/* bypass PS handling */
233 #define	M_MORE_DATA	M_PROTO5		/* more data frames to follow */
234 #define	M_FF		M_PROTO6		/* fast frame */
235 #define	M_TXCB		M_PROTO7		/* do tx complete callback */
236 #define	M_AMPDU_MPDU	M_PROTO8		/* ok for A-MPDU aggregation */
237 #define	M_80211_TX \
238 	(M_FRAG|M_FIRSTFRAG|M_LASTFRAG|M_ENCAP|M_EAPOL|M_PWR_SAV|\
239 	 M_MORE_DATA|M_FF|M_TXCB|M_AMPDU_MPDU)
240 
241 /* rx path usage */
242 #define	M_AMPDU		M_PROTO1		/* A-MPDU subframe */
243 #define	M_WEP		M_PROTO2		/* WEP done by hardware */
244 #if 0
245 #define	M_AMPDU_MPDU	M_PROTO8		/* A-MPDU re-order done */
246 #endif
247 #define	M_80211_RX	(M_AMPDU|M_WEP|M_AMPDU_MPDU)
248 
249 #define	IEEE80211_MBUF_TX_FLAG_BITS \
250 	"\20\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_ENCAP\6M_WEP\7M_EAPOL" \
251 	"\10M_PWR_SAV\11M_MORE_DATA\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
252 	"\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
253 	"\23M_NOFREE\24M_FF\25M_TXCB\26M_AMPDU_MPDU\27M_FLOWID"
254 
255 #define	IEEE80211_MBUF_RX_FLAG_BITS \
256 	"\20\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_AMPDU\6M_WEP\7M_PROTO3" \
257 	"\10M_PROTO4\11M_PROTO5\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
258 	"\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
259 	"\23M_NOFREE\24M_PROTO6\25M_PROTO7\26M_AMPDU_MPDU\27M_FLOWID"
260 
261 /*
262  * Store WME access control bits in the vlan tag.
263  * This is safe since it's done after the packet is classified
264  * (where we use any previous tag) and because it's passed
265  * directly in to the driver and there's no chance someone
266  * else will clobber them on us.
267  */
268 #define	M_WME_SETAC(m, ac) \
269 	((m)->m_pkthdr.ether_vtag = (ac))
270 #define	M_WME_GETAC(m)	((m)->m_pkthdr.ether_vtag)
271 
272 /*
273  * Mbufs on the power save queue are tagged with an age and
274  * timed out.  We reuse the hardware checksum field in the
275  * mbuf packet header to store this data.
276  */
277 #define	M_AGE_SET(m,v)		(m->m_pkthdr.csum_data = v)
278 #define	M_AGE_GET(m)		(m->m_pkthdr.csum_data)
279 #define	M_AGE_SUB(m,adj)	(m->m_pkthdr.csum_data -= adj)
280 
281 /*
282  * Store the sequence number.
283  */
284 #define	M_SEQNO_SET(m, seqno) \
285 	((m)->m_pkthdr.tso_segsz = (seqno))
286 #define	M_SEQNO_GET(m)	((m)->m_pkthdr.tso_segsz)
287 
288 #define	MTAG_ABI_NET80211	1132948340	/* net80211 ABI */
289 
290 struct ieee80211_cb {
291 	void	(*func)(struct ieee80211_node *, void *, int status);
292 	void	*arg;
293 };
294 #define	NET80211_TAG_CALLBACK	0	/* xmit complete callback */
295 int	ieee80211_add_callback(struct mbuf *m,
296 		void (*func)(struct ieee80211_node *, void *, int), void *arg);
297 void	ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int);
298 
299 struct ieee80211com;
300 int	ieee80211_parent_transmit(struct ieee80211com *, struct mbuf *);
301 int	ieee80211_vap_transmit(struct ieee80211vap *, struct mbuf *);
302 
303 void	get_random_bytes(void *, size_t);
304 
305 void	ieee80211_sysctl_attach(struct ieee80211com *);
306 void	ieee80211_sysctl_detach(struct ieee80211com *);
307 void	ieee80211_sysctl_vattach(struct ieee80211vap *);
308 void	ieee80211_sysctl_vdetach(struct ieee80211vap *);
309 
310 SYSCTL_DECL(_net_wlan);
311 int	ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS);
312 
313 void	ieee80211_load_module(const char *);
314 
315 /*
316  * A "policy module" is an adjunct module to net80211 that provides
317  * functionality that typically includes policy decisions.  This
318  * modularity enables extensibility and vendor-supplied functionality.
319  */
320 #define	_IEEE80211_POLICY_MODULE(policy, name, version)			\
321 typedef void (*policy##_setup)(int);					\
322 SET_DECLARE(policy##_set, policy##_setup);				\
323 static int								\
324 wlan_##name##_modevent(module_t mod, int type, void *unused)		\
325 {									\
326 	policy##_setup * const *iter, f;				\
327 	switch (type) {							\
328 	case MOD_LOAD:							\
329 		SET_FOREACH(iter, policy##_set) {			\
330 			f = (void*) *iter;				\
331 			f(type);					\
332 		}							\
333 		return 0;						\
334 	case MOD_UNLOAD:						\
335 	case MOD_QUIESCE:						\
336 		if (nrefs) {						\
337 			printf("wlan_##name: still in use (%u dynamic refs)\n",\
338 				nrefs);					\
339 			return EBUSY;					\
340 		}							\
341 		if (type == MOD_UNLOAD) {				\
342 			SET_FOREACH(iter, policy##_set) {		\
343 				f = (void*) *iter;			\
344 				f(type);				\
345 			}						\
346 		}							\
347 		return 0;						\
348 	}								\
349 	return EINVAL;							\
350 }									\
351 static moduledata_t name##_mod = {					\
352 	"wlan_" #name,							\
353 	wlan_##name##_modevent,						\
354 	0								\
355 };									\
356 DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
357 MODULE_VERSION(wlan_##name, version);					\
358 MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1)
359 
360 /*
361  * Crypto modules implement cipher support.
362  */
363 #define	IEEE80211_CRYPTO_MODULE(name, version)				\
364 _IEEE80211_POLICY_MODULE(crypto, name, version);			\
365 static void								\
366 name##_modevent(int type)						\
367 {									\
368 	if (type == MOD_LOAD)						\
369 		ieee80211_crypto_register(&name);			\
370 	else								\
371 		ieee80211_crypto_unregister(&name);			\
372 }									\
373 TEXT_SET(crypto##_set, name##_modevent)
374 
375 /*
376  * Scanner modules provide scanning policy.
377  */
378 #define	IEEE80211_SCANNER_MODULE(name, version)				\
379 	_IEEE80211_POLICY_MODULE(scanner, name, version)
380 
381 #define	IEEE80211_SCANNER_ALG(name, alg, v)				\
382 static void								\
383 name##_modevent(int type)						\
384 {									\
385 	if (type == MOD_LOAD)						\
386 		ieee80211_scanner_register(alg, &v);			\
387 	else								\
388 		ieee80211_scanner_unregister(alg, &v);			\
389 }									\
390 TEXT_SET(scanner_set, name##_modevent);					\
391 
392 /*
393  * ACL modules implement acl policy.
394  */
395 #define	IEEE80211_ACL_MODULE(name, alg, version)			\
396 _IEEE80211_POLICY_MODULE(acl, name, version);				\
397 static void								\
398 alg##_modevent(int type)						\
399 {									\
400 	if (type == MOD_LOAD)						\
401 		ieee80211_aclator_register(&alg);			\
402 	else								\
403 		ieee80211_aclator_unregister(&alg);			\
404 }									\
405 TEXT_SET(acl_set, alg##_modevent);					\
406 
407 /*
408  * Authenticator modules handle 802.1x/WPA authentication.
409  */
410 #define	IEEE80211_AUTH_MODULE(name, version)				\
411 	_IEEE80211_POLICY_MODULE(auth, name, version)
412 
413 #define	IEEE80211_AUTH_ALG(name, alg, v)				\
414 static void								\
415 name##_modevent(int type)						\
416 {									\
417 	if (type == MOD_LOAD)						\
418 		ieee80211_authenticator_register(alg, &v);		\
419 	else								\
420 		ieee80211_authenticator_unregister(alg);		\
421 }									\
422 TEXT_SET(auth_set, name##_modevent)
423 
424 /*
425  * Rate control modules provide tx rate control support.
426  */
427 #define	IEEE80211_RATECTL_MODULE(alg, version)				\
428 	_IEEE80211_POLICY_MODULE(ratectl, alg, version);		\
429 
430 #define	IEEE80211_RATECTL_ALG(name, alg, v)				\
431 static void								\
432 alg##_modevent(int type)						\
433 {									\
434 	if (type == MOD_LOAD)						\
435 		ieee80211_ratectl_register(alg, &v);			\
436 	else								\
437 		ieee80211_ratectl_unregister(alg);			\
438 }									\
439 TEXT_SET(ratectl##_set, alg##_modevent)
440 
441 struct ieee80211req;
442 typedef int ieee80211_ioctl_getfunc(struct ieee80211vap *,
443     struct ieee80211req *);
444 SET_DECLARE(ieee80211_ioctl_getset, ieee80211_ioctl_getfunc);
445 #define	IEEE80211_IOCTL_GET(_name, _get) TEXT_SET(ieee80211_ioctl_getset, _get)
446 
447 typedef int ieee80211_ioctl_setfunc(struct ieee80211vap *,
448     struct ieee80211req *);
449 SET_DECLARE(ieee80211_ioctl_setset, ieee80211_ioctl_setfunc);
450 #define	IEEE80211_IOCTL_SET(_name, _set) TEXT_SET(ieee80211_ioctl_setset, _set)
451 #endif /* _KERNEL */
452 
453 /* XXX this stuff belongs elsewhere */
454 /*
455  * Message formats for messages from the net80211 layer to user
456  * applications via the routing socket.  These messages are appended
457  * to an if_announcemsghdr structure.
458  */
459 struct ieee80211_join_event {
460 	uint8_t		iev_addr[6];
461 };
462 
463 struct ieee80211_leave_event {
464 	uint8_t		iev_addr[6];
465 };
466 
467 struct ieee80211_replay_event {
468 	uint8_t		iev_src[6];	/* src MAC */
469 	uint8_t		iev_dst[6];	/* dst MAC */
470 	uint8_t		iev_cipher;	/* cipher type */
471 	uint8_t		iev_keyix;	/* key id/index */
472 	uint64_t	iev_keyrsc;	/* RSC from key */
473 	uint64_t	iev_rsc;	/* RSC from frame */
474 };
475 
476 struct ieee80211_michael_event {
477 	uint8_t		iev_src[6];	/* src MAC */
478 	uint8_t		iev_dst[6];	/* dst MAC */
479 	uint8_t		iev_cipher;	/* cipher type */
480 	uint8_t		iev_keyix;	/* key id/index */
481 };
482 
483 struct ieee80211_wds_event {
484 	uint8_t		iev_addr[6];
485 };
486 
487 struct ieee80211_csa_event {
488 	uint32_t	iev_flags;	/* channel flags */
489 	uint16_t	iev_freq;	/* setting in Mhz */
490 	uint8_t		iev_ieee;	/* IEEE channel number */
491 	uint8_t		iev_mode;	/* CSA mode */
492 	uint8_t		iev_count;	/* CSA count */
493 };
494 
495 struct ieee80211_cac_event {
496 	uint32_t	iev_flags;	/* channel flags */
497 	uint16_t	iev_freq;	/* setting in Mhz */
498 	uint8_t		iev_ieee;	/* IEEE channel number */
499 	/* XXX timestamp? */
500 	uint8_t		iev_type;	/* IEEE80211_NOTIFY_CAC_* */
501 };
502 
503 struct ieee80211_radar_event {
504 	uint32_t	iev_flags;	/* channel flags */
505 	uint16_t	iev_freq;	/* setting in Mhz */
506 	uint8_t		iev_ieee;	/* IEEE channel number */
507 	/* XXX timestamp? */
508 };
509 
510 struct ieee80211_auth_event {
511 	uint8_t		iev_addr[6];
512 };
513 
514 struct ieee80211_deauth_event {
515 	uint8_t		iev_addr[6];
516 };
517 
518 struct ieee80211_country_event {
519 	uint8_t		iev_addr[6];
520 	uint8_t		iev_cc[2];	/* ISO country code */
521 };
522 
523 struct ieee80211_radio_event {
524 	uint8_t		iev_state;	/* 1 on, 0 off */
525 };
526 
527 #define	RTM_IEEE80211_ASSOC	100	/* station associate (bss mode) */
528 #define	RTM_IEEE80211_REASSOC	101	/* station re-associate (bss mode) */
529 #define	RTM_IEEE80211_DISASSOC	102	/* station disassociate (bss mode) */
530 #define	RTM_IEEE80211_JOIN	103	/* station join (ap mode) */
531 #define	RTM_IEEE80211_LEAVE	104	/* station leave (ap mode) */
532 #define	RTM_IEEE80211_SCAN	105	/* scan complete, results available */
533 #define	RTM_IEEE80211_REPLAY	106	/* sequence counter replay detected */
534 #define	RTM_IEEE80211_MICHAEL	107	/* Michael MIC failure detected */
535 #define	RTM_IEEE80211_REJOIN	108	/* station re-associate (ap mode) */
536 #define	RTM_IEEE80211_WDS	109	/* WDS discovery (ap mode) */
537 #define	RTM_IEEE80211_CSA	110	/* Channel Switch Announcement event */
538 #define	RTM_IEEE80211_RADAR	111	/* radar event */
539 #define	RTM_IEEE80211_CAC	112	/* Channel Availability Check event */
540 #define	RTM_IEEE80211_DEAUTH	113	/* station deauthenticate */
541 #define	RTM_IEEE80211_AUTH	114	/* station authenticate (ap mode) */
542 #define	RTM_IEEE80211_COUNTRY	115	/* discovered country code (sta mode) */
543 #define	RTM_IEEE80211_RADIO	116	/* RF kill switch state change */
544 
545 /*
546  * Structure prepended to raw packets sent through the bpf
547  * interface when set to DLT_IEEE802_11_RADIO.  This allows
548  * user applications to specify pretty much everything in
549  * an Atheros tx descriptor.  XXX need to generalize.
550  *
551  * XXX cannot be more than 14 bytes as it is copied to a sockaddr's
552  * XXX sa_data area.
553  */
554 struct ieee80211_bpf_params {
555 	uint8_t		ibp_vers;	/* version */
556 #define	IEEE80211_BPF_VERSION	0
557 	uint8_t		ibp_len;	/* header length in bytes */
558 	uint8_t		ibp_flags;
559 #define	IEEE80211_BPF_SHORTPRE	0x01	/* tx with short preamble */
560 #define	IEEE80211_BPF_NOACK	0x02	/* tx with no ack */
561 #define	IEEE80211_BPF_CRYPTO	0x04	/* tx with h/w encryption */
562 #define	IEEE80211_BPF_FCS	0x10	/* frame incldues FCS */
563 #define	IEEE80211_BPF_DATAPAD	0x20	/* frame includes data padding */
564 #define	IEEE80211_BPF_RTS	0x40	/* tx with RTS/CTS */
565 #define	IEEE80211_BPF_CTS	0x80	/* tx with CTS only */
566 	uint8_t		ibp_pri;	/* WME/WMM AC+tx antenna */
567 	uint8_t		ibp_try0;	/* series 1 try count */
568 	uint8_t		ibp_rate0;	/* series 1 IEEE tx rate */
569 	uint8_t		ibp_power;	/* tx power (device units) */
570 	uint8_t		ibp_ctsrate;	/* IEEE tx rate for CTS */
571 	uint8_t		ibp_try1;	/* series 2 try count */
572 	uint8_t		ibp_rate1;	/* series 2 IEEE tx rate */
573 	uint8_t		ibp_try2;	/* series 3 try count */
574 	uint8_t		ibp_rate2;	/* series 3 IEEE tx rate */
575 	uint8_t		ibp_try3;	/* series 4 try count */
576 	uint8_t		ibp_rate3;	/* series 4 IEEE tx rate */
577 };
578 #endif /* _NET80211_IEEE80211_FREEBSD_H_ */
579