ieee80211_freebsd.h revision 189170
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: head/sys/net80211/ieee80211_freebsd.h 189170 2009-02-28 16:21:25Z ed $
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
36/*
37 * Common state locking definitions.
38 */
39typedef struct {
40	char		name[16];		/* e.g. "ath0_com_lock" */
41	struct mtx	mtx;
42} ieee80211_com_lock_t;
43#define	IEEE80211_LOCK_INIT(_ic, _name) do {				\
44	ieee80211_com_lock_t *cl = &(_ic)->ic_comlock;			\
45	snprintf(cl->name, sizeof(cl->name), "%s_com_lock", _name);	\
46	mtx_init(&cl->mtx, cl->name, NULL, MTX_DEF | MTX_RECURSE);	\
47} while (0)
48#define	IEEE80211_LOCK_OBJ(_ic)	(&(_ic)->ic_comlock.mtx)
49#define	IEEE80211_LOCK_DESTROY(_ic) mtx_destroy(IEEE80211_LOCK_OBJ(_ic))
50#define	IEEE80211_LOCK(_ic)	   mtx_lock(IEEE80211_LOCK_OBJ(_ic))
51#define	IEEE80211_UNLOCK(_ic)	   mtx_unlock(IEEE80211_LOCK_OBJ(_ic))
52#define	IEEE80211_LOCK_ASSERT(_ic) \
53	mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_OWNED)
54
55/*
56 * Node locking definitions.
57 */
58typedef struct {
59	char		name[16];		/* e.g. "ath0_node_lock" */
60	struct mtx	mtx;
61} ieee80211_node_lock_t;
62#define	IEEE80211_NODE_LOCK_INIT(_nt, _name) do {			\
63	ieee80211_node_lock_t *nl = &(_nt)->nt_nodelock;		\
64	snprintf(nl->name, sizeof(nl->name), "%s_node_lock", _name);	\
65	mtx_init(&nl->mtx, nl->name, NULL, MTX_DEF | MTX_RECURSE);	\
66} while (0)
67#define	IEEE80211_NODE_LOCK_OBJ(_nt)	(&(_nt)->nt_nodelock.mtx)
68#define	IEEE80211_NODE_LOCK_DESTROY(_nt) \
69	mtx_destroy(IEEE80211_NODE_LOCK_OBJ(_nt))
70#define	IEEE80211_NODE_LOCK(_nt) \
71	mtx_lock(IEEE80211_NODE_LOCK_OBJ(_nt))
72#define	IEEE80211_NODE_IS_LOCKED(_nt) \
73	mtx_owned(IEEE80211_NODE_LOCK_OBJ(_nt))
74#define	IEEE80211_NODE_UNLOCK(_nt) \
75	mtx_unlock(IEEE80211_NODE_LOCK_OBJ(_nt))
76#define	IEEE80211_NODE_LOCK_ASSERT(_nt)	\
77	mtx_assert(IEEE80211_NODE_LOCK_OBJ(_nt), MA_OWNED)
78
79/*
80 * Node table iteration locking definitions; this protects the
81 * scan generation # used to iterate over the station table
82 * while grabbing+releasing the node lock.
83 */
84typedef struct {
85	char		name[16];		/* e.g. "ath0_scan_lock" */
86	struct mtx	mtx;
87} ieee80211_scan_lock_t;
88#define	IEEE80211_NODE_ITERATE_LOCK_INIT(_nt, _name) do {		\
89	ieee80211_scan_lock_t *sl = &(_nt)->nt_scanlock;		\
90	snprintf(sl->name, sizeof(sl->name), "%s_scan_lock", _name);	\
91	mtx_init(&sl->mtx, sl->name, NULL, MTX_DEF);			\
92} while (0)
93#define	IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt)	(&(_nt)->nt_scanlock.mtx)
94#define	IEEE80211_NODE_ITERATE_LOCK_DESTROY(_nt) \
95	mtx_destroy(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
96#define	IEEE80211_NODE_ITERATE_LOCK(_nt) \
97	mtx_lock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
98#define	IEEE80211_NODE_ITERATE_UNLOCK(_nt) \
99	mtx_unlock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
100
101#define	_AGEQ_ENQUEUE(_ifq, _m, _qlen, _age) do {		\
102	(_m)->m_nextpkt = NULL;					\
103	if ((_ifq)->ifq_tail != NULL) { 			\
104		_age -= M_AGE_GET((_ifq)->ifq_head);		\
105		(_ifq)->ifq_tail->m_nextpkt = (_m);		\
106	} else { 						\
107		(_ifq)->ifq_head = (_m); 			\
108	}							\
109	M_AGE_SET(_m, _age);					\
110	(_ifq)->ifq_tail = (_m); 				\
111	(_qlen) = ++(_ifq)->ifq_len; 				\
112} while (0)
113
114/*
115 * Power-save queue definitions.
116 */
117typedef struct mtx ieee80211_psq_lock_t;
118#define	IEEE80211_PSQ_INIT(_psq, _name) \
119	mtx_init(&(_psq)->psq_lock, _name, "802.11 ps q", MTX_DEF);
120#define	IEEE80211_PSQ_DESTROY(_psq)	mtx_destroy(&(_psq)->psq_lock)
121#define	IEEE80211_PSQ_LOCK(_psq)	mtx_lock(&(_psq)->psq_lock)
122#define	IEEE80211_PSQ_UNLOCK(_psq)	mtx_unlock(&(_psq)->psq_lock)
123
124#ifndef IF_PREPEND_LIST
125#define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {	\
126	(mtail)->m_nextpkt = (ifq)->ifq_head;			\
127	if ((ifq)->ifq_tail == NULL)				\
128		(ifq)->ifq_tail = (mtail);			\
129	(ifq)->ifq_head = (mhead);				\
130	(ifq)->ifq_len += (mcount);				\
131} while (0)
132#define IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {		\
133	IF_LOCK(ifq);						\
134	_IF_PREPEND_LIST(ifq, mhead, mtail, mcount);		\
135	IF_UNLOCK(ifq);						\
136} while (0)
137#endif /* IF_PREPEND_LIST */
138
139/* XXX temporary */
140#define	IEEE80211_NODE_WDSQ_INIT(_ni, _name) do {		\
141	mtx_init(&(_ni)->ni_wdsq.ifq_mtx, _name, "802.11 wds queue", MTX_DEF);\
142	(_ni)->ni_wdsq.ifq_maxlen = IEEE80211_PS_MAX_QUEUE;	\
143} while (0)
144#define	IEEE80211_NODE_WDSQ_DESTROY(_ni) do { \
145	mtx_destroy(&(_ni)->ni_wdsq.ifq_mtx); \
146} while (0)
147#define	IEEE80211_NODE_WDSQ_QLEN(_ni)	_IF_QLEN(&(_ni)->ni_wdsq)
148#define	IEEE80211_NODE_WDSQ_LOCK(_ni)	IF_LOCK(&(_ni)->ni_wdsq)
149#define	IEEE80211_NODE_WDSQ_UNLOCK(_ni)	IF_UNLOCK(&(_ni)->ni_wdsq)
150#define	_IEEE80211_NODE_WDSQ_DEQUEUE_HEAD(_ni, _m) do {		\
151	_IF_DEQUEUE(&(_ni)->ni_wdsq, m);			\
152} while (0)
153#define	_IEEE80211_NODE_WDSQ_ENQUEUE(_ni, _m, _qlen, _age) do {	\
154	_AGEQ_ENQUEUE(&ni->ni_wdsq, _m, _qlen, _age);		\
155} while (0)
156
157/*
158 * 802.1x MAC ACL database locking definitions.
159 */
160typedef struct mtx acl_lock_t;
161#define	ACL_LOCK_INIT(_as, _name) \
162	mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF)
163#define	ACL_LOCK_DESTROY(_as)		mtx_destroy(&(_as)->as_lock)
164#define	ACL_LOCK(_as)			mtx_lock(&(_as)->as_lock)
165#define	ACL_UNLOCK(_as)			mtx_unlock(&(_as)->as_lock)
166#define	ACL_LOCK_ASSERT(_as) \
167	mtx_assert((&(_as)->as_lock), MA_OWNED)
168
169/*
170 * Node reference counting definitions.
171 *
172 * ieee80211_node_initref	initialize the reference count to 1
173 * ieee80211_node_incref	add a reference
174 * ieee80211_node_decref	remove a reference
175 * ieee80211_node_dectestref	remove a reference and return 1 if this
176 *				is the last reference, otherwise 0
177 * ieee80211_node_refcnt	reference count for printing (only)
178 */
179#include <machine/atomic.h>
180
181#define ieee80211_node_initref(_ni) \
182	do { ((_ni)->ni_refcnt = 1); } while (0)
183#define ieee80211_node_incref(_ni) \
184	atomic_add_int(&(_ni)->ni_refcnt, 1)
185#define	ieee80211_node_decref(_ni) \
186	atomic_subtract_int(&(_ni)->ni_refcnt, 1)
187struct ieee80211_node;
188int	ieee80211_node_dectestref(struct ieee80211_node *ni);
189#define	ieee80211_node_refcnt(_ni)	(_ni)->ni_refcnt
190
191struct ifqueue;
192struct ieee80211vap;
193void	ieee80211_drain_ifq(struct ifqueue *);
194void	ieee80211_flush_ifq(struct ifqueue *, struct ieee80211vap *);
195
196void	ieee80211_vap_destroy(struct ieee80211vap *);
197
198#define	IFNET_IS_UP_RUNNING(_ifp) \
199	(((_ifp)->if_flags & IFF_UP) && \
200	 ((_ifp)->if_drv_flags & IFF_DRV_RUNNING))
201
202#define	msecs_to_ticks(ms)	(((ms)*hz)/1000)
203#define	ticks_to_msecs(t)	(1000*(t) / hz)
204#define	ticks_to_secs(t)	((t) / hz)
205#define time_after(a,b) 	((long)(b) - (long)(a) < 0)
206#define time_before(a,b)	time_after(b,a)
207#define time_after_eq(a,b)	((long)(a) - (long)(b) >= 0)
208#define time_before_eq(a,b)	time_after_eq(b,a)
209
210struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen);
211
212/* tx path usage */
213#define	M_ENCAP		M_PROTO1		/* 802.11 encap done */
214#define	M_WDS		M_PROTO2		/* WDS frame */
215#define	M_EAPOL		M_PROTO3		/* PAE/EAPOL frame */
216#define	M_PWR_SAV	M_PROTO4		/* bypass PS handling */
217#define	M_MORE_DATA	M_PROTO5		/* more data frames to follow */
218#define	M_FF		M_PROTO6		/* fast frame */
219#define	M_TXCB		M_PROTO7		/* do tx complete callback */
220#define	M_AMPDU_MPDU	M_PROTO8		/* ok for A-MPDU aggregation */
221#define	M_80211_TX \
222	(M_FRAG|M_FIRSTFRAG|M_LASTFRAG|M_ENCAP|M_WDS|M_EAPOL|M_PWR_SAV|\
223	 M_MORE_DATA|M_FF|M_TXCB|M_AMPDU_MPDU)
224
225/* rx path usage */
226#define	M_AMPDU		M_PROTO1		/* A-MPDU subframe */
227#define	M_WEP		M_PROTO2		/* WEP done by hardware */
228#if 0
229#define	M_AMPDU_MPDU	M_PROTO8		/* A-MPDU re-order done */
230#endif
231#define	M_80211_RX	(M_AMPDU|M_WEP|M_AMPDU_MPDU)
232/*
233 * Store WME access control bits in the vlan tag.
234 * This is safe since it's done after the packet is classified
235 * (where we use any previous tag) and because it's passed
236 * directly in to the driver and there's no chance someone
237 * else will clobber them on us.
238 */
239#define	M_WME_SETAC(m, ac) \
240	((m)->m_pkthdr.ether_vtag = (ac))
241#define	M_WME_GETAC(m)	((m)->m_pkthdr.ether_vtag)
242
243/*
244 * Mbufs on the power save queue are tagged with an age and
245 * timed out.  We reuse the hardware checksum field in the
246 * mbuf packet header to store this data.
247 */
248#define	M_AGE_SET(m,v)		(m->m_pkthdr.csum_data = v)
249#define	M_AGE_GET(m)		(m->m_pkthdr.csum_data)
250#define	M_AGE_SUB(m,adj)	(m->m_pkthdr.csum_data -= adj)
251
252#define	MTAG_ABI_NET80211	1132948340	/* net80211 ABI */
253
254struct ieee80211_cb {
255	void	(*func)(struct ieee80211_node *, void *, int status);
256	void	*arg;
257};
258#define	NET80211_TAG_CALLBACK	0	/* xmit complete callback */
259int	ieee80211_add_callback(struct mbuf *m,
260		void (*func)(struct ieee80211_node *, void *, int), void *arg);
261void	ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int);
262
263void	get_random_bytes(void *, size_t);
264
265struct ieee80211com;
266
267void	ieee80211_sysctl_attach(struct ieee80211com *);
268void	ieee80211_sysctl_detach(struct ieee80211com *);
269void	ieee80211_sysctl_vattach(struct ieee80211vap *);
270void	ieee80211_sysctl_vdetach(struct ieee80211vap *);
271
272void	ieee80211_load_module(const char *);
273
274/*
275 * A "policy module" is an adjunct module to net80211 that provides
276 * functionality that typically includes policy decisions.  This
277 * modularity enables extensibility and vendor-supplied functionality.
278 */
279#define	_IEEE80211_POLICY_MODULE(policy, name, version)			\
280typedef void (*policy##_setup)(int);					\
281SET_DECLARE(policy##_set, policy##_setup);				\
282static int								\
283wlan_##name##_modevent(module_t mod, int type, void *unused)		\
284{									\
285	policy##_setup * const *iter, f;				\
286	switch (type) {							\
287	case MOD_LOAD:							\
288		SET_FOREACH(iter, policy##_set) {			\
289			f = (void*) *iter;				\
290			f(type);					\
291		}							\
292		return 0;						\
293	case MOD_UNLOAD:						\
294	case MOD_QUIESCE:						\
295		if (nrefs) {						\
296			printf("wlan_##name: still in use (%u dynamic refs)\n",\
297				nrefs);					\
298			return EBUSY;					\
299		}							\
300		if (type == MOD_UNLOAD) {				\
301			SET_FOREACH(iter, policy##_set) {		\
302				f = (void*) *iter;			\
303				f(type);				\
304			}						\
305		}							\
306		return 0;						\
307	}								\
308	return EINVAL;							\
309}									\
310static moduledata_t name##_mod = {					\
311	"wlan_" #name,							\
312	wlan_##name##_modevent,						\
313	0								\
314};									\
315DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
316MODULE_VERSION(wlan_##name, version);					\
317MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1)
318
319/*
320 * Crypto modules implement cipher support.
321 */
322#define	IEEE80211_CRYPTO_MODULE(name, version)				\
323_IEEE80211_POLICY_MODULE(crypto, name, version);			\
324static void								\
325name##_modevent(int type)						\
326{									\
327	if (type == MOD_LOAD)						\
328		ieee80211_crypto_register(&name);			\
329	else								\
330		ieee80211_crypto_unregister(&name);			\
331}									\
332TEXT_SET(crypto##_set, name##_modevent)
333
334/*
335 * Scanner modules provide scanning policy.
336 */
337#define	IEEE80211_SCANNER_MODULE(name, version)				\
338	_IEEE80211_POLICY_MODULE(scanner, name, version)
339
340#define	IEEE80211_SCANNER_ALG(name, alg, v)				\
341static void								\
342name##_modevent(int type)						\
343{									\
344	if (type == MOD_LOAD)						\
345		ieee80211_scanner_register(alg, &v);			\
346	else								\
347		ieee80211_scanner_unregister(alg, &v);			\
348}									\
349TEXT_SET(scanner_set, name##_modevent);					\
350
351/*
352 * ACL modules implement acl policy.
353 */
354#define	IEEE80211_ACL_MODULE(name, alg, version)			\
355_IEEE80211_POLICY_MODULE(acl, name, version);				\
356static void								\
357alg##_modevent(int type)						\
358{									\
359	if (type == MOD_LOAD)						\
360		ieee80211_aclator_register(&alg);			\
361	else								\
362		ieee80211_aclator_unregister(&alg);			\
363}									\
364TEXT_SET(acl_set, alg##_modevent);					\
365
366/*
367 * Authenticator modules handle 802.1x/WPA authentication.
368 */
369#define	IEEE80211_AUTH_MODULE(name, version)				\
370	_IEEE80211_POLICY_MODULE(auth, name, version)
371
372#define	IEEE80211_AUTH_ALG(name, alg, v)				\
373static void								\
374name##_modevent(int type)						\
375{									\
376	if (type == MOD_LOAD)						\
377		ieee80211_authenticator_register(alg, &v);		\
378	else								\
379		ieee80211_authenticator_unregister(alg);		\
380}									\
381TEXT_SET(auth_set, name##_modevent)
382
383/*
384 * Rate control modules provide tx rate control support.
385 */
386#define	IEEE80211_RATE_MODULE(alg, version)				\
387_IEEE80211_POLICY_MODULE(rate, alg, version);				\
388static void								\
389alg##_modevent(int type)						\
390{									\
391	/* XXX nothing to do until the rate control framework arrives */\
392}									\
393TEXT_SET(rate##_set, alg##_modevent)
394#endif /* _KERNEL */
395
396/* XXX this stuff belongs elsewhere */
397/*
398 * Message formats for messages from the net80211 layer to user
399 * applications via the routing socket.  These messages are appended
400 * to an if_announcemsghdr structure.
401 */
402struct ieee80211_join_event {
403	uint8_t		iev_addr[6];
404};
405
406struct ieee80211_leave_event {
407	uint8_t		iev_addr[6];
408};
409
410struct ieee80211_replay_event {
411	uint8_t		iev_src[6];	/* src MAC */
412	uint8_t		iev_dst[6];	/* dst MAC */
413	uint8_t		iev_cipher;	/* cipher type */
414	uint8_t		iev_keyix;	/* key id/index */
415	uint64_t	iev_keyrsc;	/* RSC from key */
416	uint64_t	iev_rsc;	/* RSC from frame */
417};
418
419struct ieee80211_michael_event {
420	uint8_t		iev_src[6];	/* src MAC */
421	uint8_t		iev_dst[6];	/* dst MAC */
422	uint8_t		iev_cipher;	/* cipher type */
423	uint8_t		iev_keyix;	/* key id/index */
424};
425
426struct ieee80211_wds_event {
427	uint8_t		iev_addr[6];
428};
429
430struct ieee80211_csa_event {
431	uint32_t	iev_flags;	/* channel flags */
432	uint16_t	iev_freq;	/* setting in Mhz */
433	uint8_t		iev_ieee;	/* IEEE channel number */
434	uint8_t		iev_mode;	/* CSA mode */
435	uint8_t		iev_count;	/* CSA count */
436};
437
438struct ieee80211_cac_event {
439	uint32_t	iev_flags;	/* channel flags */
440	uint16_t	iev_freq;	/* setting in Mhz */
441	uint8_t		iev_ieee;	/* IEEE channel number */
442	/* XXX timestamp? */
443	uint8_t		iev_type;	/* IEEE80211_NOTIFY_CAC_* */
444};
445
446struct ieee80211_radar_event {
447	uint32_t	iev_flags;	/* channel flags */
448	uint16_t	iev_freq;	/* setting in Mhz */
449	uint8_t		iev_ieee;	/* IEEE channel number */
450	/* XXX timestamp? */
451};
452
453struct ieee80211_auth_event {
454	uint8_t		iev_addr[6];
455};
456
457struct ieee80211_deauth_event {
458	uint8_t		iev_addr[6];
459};
460
461struct ieee80211_country_event {
462	uint8_t		iev_addr[6];
463	uint8_t		iev_cc[2];	/* ISO country code */
464};
465
466struct ieee80211_radio_event {
467	uint8_t		iev_state;	/* 1 on, 0 off */
468};
469
470#define	RTM_IEEE80211_ASSOC	100	/* station associate (bss mode) */
471#define	RTM_IEEE80211_REASSOC	101	/* station re-associate (bss mode) */
472#define	RTM_IEEE80211_DISASSOC	102	/* station disassociate (bss mode) */
473#define	RTM_IEEE80211_JOIN	103	/* station join (ap mode) */
474#define	RTM_IEEE80211_LEAVE	104	/* station leave (ap mode) */
475#define	RTM_IEEE80211_SCAN	105	/* scan complete, results available */
476#define	RTM_IEEE80211_REPLAY	106	/* sequence counter replay detected */
477#define	RTM_IEEE80211_MICHAEL	107	/* Michael MIC failure detected */
478#define	RTM_IEEE80211_REJOIN	108	/* station re-associate (ap mode) */
479#define	RTM_IEEE80211_WDS	109	/* WDS discovery (ap mode) */
480#define	RTM_IEEE80211_CSA	110	/* Channel Switch Announcement event */
481#define	RTM_IEEE80211_RADAR	111	/* radar event */
482#define	RTM_IEEE80211_CAC	112	/* Channel Availability Check event */
483#define	RTM_IEEE80211_DEAUTH	113	/* station deauthenticate */
484#define	RTM_IEEE80211_AUTH	114	/* station authenticate (ap mode) */
485#define	RTM_IEEE80211_COUNTRY	115	/* discovered country code (sta mode) */
486#define	RTM_IEEE80211_RADIO	116	/* RF kill switch state change */
487
488/*
489 * Structure prepended to raw packets sent through the bpf
490 * interface when set to DLT_IEEE802_11_RADIO.  This allows
491 * user applications to specify pretty much everything in
492 * an Atheros tx descriptor.  XXX need to generalize.
493 *
494 * XXX cannot be more than 14 bytes as it is copied to a sockaddr's
495 * XXX sa_data area.
496 */
497struct ieee80211_bpf_params {
498	uint8_t		ibp_vers;	/* version */
499#define	IEEE80211_BPF_VERSION	0
500	uint8_t		ibp_len;	/* header length in bytes */
501	uint8_t		ibp_flags;
502#define	IEEE80211_BPF_SHORTPRE	0x01	/* tx with short preamble */
503#define	IEEE80211_BPF_NOACK	0x02	/* tx with no ack */
504#define	IEEE80211_BPF_CRYPTO	0x04	/* tx with h/w encryption */
505#define	IEEE80211_BPF_FCS	0x10	/* frame incldues FCS */
506#define	IEEE80211_BPF_DATAPAD	0x20	/* frame includes data padding */
507#define	IEEE80211_BPF_RTS	0x40	/* tx with RTS/CTS */
508#define	IEEE80211_BPF_CTS	0x80	/* tx with CTS only */
509	uint8_t		ibp_pri;	/* WME/WMM AC+tx antenna */
510	uint8_t		ibp_try0;	/* series 1 try count */
511	uint8_t		ibp_rate0;	/* series 1 IEEE tx rate */
512	uint8_t		ibp_power;	/* tx power (device units) */
513	uint8_t		ibp_ctsrate;	/* IEEE tx rate for CTS */
514	uint8_t		ibp_try1;	/* series 2 try count */
515	uint8_t		ibp_rate1;	/* series 2 IEEE tx rate */
516	uint8_t		ibp_try2;	/* series 3 try count */
517	uint8_t		ibp_rate2;	/* series 3 IEEE tx rate */
518	uint8_t		ibp_try3;	/* series 4 try count */
519	uint8_t		ibp_rate3;	/* series 4 IEEE tx rate */
520};
521#endif /* _NET80211_IEEE80211_FREEBSD_H_ */
522