1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2001 Atsushi Onoe
5 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
ieee80211_mgt_subtype_name(uint8_t subtype)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 *
ieee80211_ctl_subtype_name(uint8_t subtype)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_probereq_ie(struct ieee80211vap *, struct ieee80211com *,
116 uint8_t **, uint32_t *, const uint8_t *, size_t, bool);
117 int ieee80211_send_probereq(struct ieee80211_node *ni,
118 const uint8_t sa[IEEE80211_ADDR_LEN],
119 const uint8_t da[IEEE80211_ADDR_LEN],
120 const uint8_t bssid[IEEE80211_ADDR_LEN],
121 const uint8_t *ssid, size_t ssidlen);
122 struct mbuf * ieee80211_ff_encap1(struct ieee80211vap *, struct mbuf *,
123 const struct ether_header *);
124 void ieee80211_tx_complete(struct ieee80211_node *,
125 struct mbuf *, int);
126 void ieee80211_output_seqno_assign(struct ieee80211_node *,
127 int, struct mbuf *);
128 void ieee80211_output_beacon_seqno_assign(struct ieee80211_node *,
129 struct mbuf *);
130
131 /*
132 * The formation of ProbeResponse frames requires guidance to
133 * deal with legacy clients. When the client is identified as
134 * "legacy 11b" ieee80211_send_proberesp is passed this token.
135 */
136 #define IEEE80211_SEND_LEGACY_11B 0x1 /* legacy 11b client */
137 #define IEEE80211_SEND_LEGACY_11 0x2 /* other legacy client */
138 #define IEEE80211_SEND_LEGACY 0x3 /* any legacy client */
139 struct mbuf *ieee80211_alloc_proberesp(struct ieee80211_node *, int);
140 int ieee80211_send_proberesp(struct ieee80211vap *,
141 const uint8_t da[IEEE80211_ADDR_LEN], int);
142 struct mbuf *ieee80211_alloc_rts(struct ieee80211com *ic,
143 const uint8_t [IEEE80211_ADDR_LEN],
144 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
145 struct mbuf *ieee80211_alloc_cts(struct ieee80211com *,
146 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
147 struct mbuf *ieee80211_alloc_prot(struct ieee80211_node *,
148 const struct mbuf *, uint8_t, int);
149
150 uint8_t *ieee80211_add_rates(uint8_t *, const struct ieee80211_rateset *);
151 uint8_t *ieee80211_add_xrates(uint8_t *, const struct ieee80211_rateset *);
152 uint8_t *ieee80211_add_ssid(uint8_t *, const uint8_t *, u_int);
153 uint8_t *ieee80211_add_wpa(uint8_t *, const struct ieee80211vap *);
154 uint8_t *ieee80211_add_rsn(uint8_t *, const struct ieee80211vap *);
155 uint8_t *ieee80211_add_qos(uint8_t *, const struct ieee80211_node *);
156 uint16_t ieee80211_getcapinfo(struct ieee80211vap *,
157 struct ieee80211_channel *);
158 struct ieee80211_wme_state;
159 uint8_t * ieee80211_add_wme_info(uint8_t *frm, struct ieee80211_wme_state *wme,
160 struct ieee80211_node *ni);
161
162 void ieee80211_vap_reset_erp(struct ieee80211vap *);
163 void ieee80211_reset_erp(struct ieee80211com *);
164 void ieee80211_vap_set_shortslottime(struct ieee80211vap *, int onoff);
165 int ieee80211_iserp_rateset(const struct ieee80211_rateset *);
166 void ieee80211_setbasicrates(struct ieee80211_rateset *,
167 enum ieee80211_phymode);
168 void ieee80211_addbasicrates(struct ieee80211_rateset *,
169 enum ieee80211_phymode);
170
171 /*
172 * Return the size of the 802.11 header for a management or data frame.
173 */
174 static __inline int
ieee80211_hdrsize(const void * data)175 ieee80211_hdrsize(const void *data)
176 {
177 const struct ieee80211_frame *wh = data;
178 int size = sizeof(struct ieee80211_frame);
179
180 /* NB: we don't handle control frames */
181 KASSERT((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_CTL,
182 ("%s: control frame", __func__));
183 if (IEEE80211_IS_DSTODS(wh))
184 size += IEEE80211_ADDR_LEN;
185 if (IEEE80211_QOS_HAS_SEQ(wh))
186 size += sizeof(uint16_t);
187 return size;
188 }
189
190 /*
191 * Like ieee80211_hdrsize, but handles any type of frame.
192 */
193 static __inline int
ieee80211_anyhdrsize(const void * data)194 ieee80211_anyhdrsize(const void *data)
195 {
196 const struct ieee80211_frame *wh = data;
197
198 if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) {
199 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
200 case IEEE80211_FC0_SUBTYPE_CTS:
201 case IEEE80211_FC0_SUBTYPE_ACK:
202 return sizeof(struct ieee80211_frame_ack);
203 case IEEE80211_FC0_SUBTYPE_BAR:
204 return sizeof(struct ieee80211_frame_bar);
205 }
206 return sizeof(struct ieee80211_frame_min);
207 } else
208 return ieee80211_hdrsize(data);
209 }
210
211 /*
212 * Template for an in-kernel authenticator. Authenticators
213 * register with the protocol code and are typically loaded
214 * as separate modules as needed. One special authenticator
215 * is xauth; it intercepts requests so that protocols like
216 * WPA can be handled in user space.
217 */
218 struct ieee80211_authenticator {
219 const char *ia_name; /* printable name */
220 int (*ia_attach)(struct ieee80211vap *);
221 void (*ia_detach)(struct ieee80211vap *);
222 void (*ia_node_join)(struct ieee80211_node *);
223 void (*ia_node_leave)(struct ieee80211_node *);
224 };
225 void ieee80211_authenticator_register(int type,
226 const struct ieee80211_authenticator *);
227 void ieee80211_authenticator_unregister(int type);
228 const struct ieee80211_authenticator *ieee80211_authenticator_get(int auth);
229
230 struct ieee80211req;
231 /*
232 * Template for an MAC ACL policy module. Such modules
233 * register with the protocol code and are passed the sender's
234 * address of each received auth frame for validation.
235 */
236 struct ieee80211_aclator {
237 const char *iac_name; /* printable name */
238 int (*iac_attach)(struct ieee80211vap *);
239 void (*iac_detach)(struct ieee80211vap *);
240 int (*iac_check)(struct ieee80211vap *,
241 const struct ieee80211_frame *wh);
242 int (*iac_add)(struct ieee80211vap *,
243 const uint8_t mac[IEEE80211_ADDR_LEN]);
244 int (*iac_remove)(struct ieee80211vap *,
245 const uint8_t mac[IEEE80211_ADDR_LEN]);
246 int (*iac_flush)(struct ieee80211vap *);
247 int (*iac_setpolicy)(struct ieee80211vap *, int);
248 int (*iac_getpolicy)(struct ieee80211vap *);
249 int (*iac_setioctl)(struct ieee80211vap *, struct ieee80211req *);
250 int (*iac_getioctl)(struct ieee80211vap *, struct ieee80211req *);
251 };
252 void ieee80211_aclator_register(const struct ieee80211_aclator *);
253 void ieee80211_aclator_unregister(const struct ieee80211_aclator *);
254 const struct ieee80211_aclator *ieee80211_aclator_get(const char *name);
255
256 /* flags for ieee80211_fix_rate() */
257 #define IEEE80211_F_DOSORT 0x00000001 /* sort rate list */
258 #define IEEE80211_F_DOFRATE 0x00000002 /* use fixed legacy rate */
259 #define IEEE80211_F_DONEGO 0x00000004 /* calc negotiated rate */
260 #define IEEE80211_F_DODEL 0x00000008 /* delete ignore rate */
261 #define IEEE80211_F_DOBRS 0x00000010 /* check basic rate set */
262 #define IEEE80211_F_JOIN 0x00000020 /* sta joining our bss */
263 #define IEEE80211_F_DOFMCS 0x00000040 /* use fixed HT rate */
264 int ieee80211_fix_rate(struct ieee80211_node *,
265 struct ieee80211_rateset *, int);
266
267 /*
268 * WME/WMM support.
269 */
270 struct wmeParams {
271 uint8_t wmep_acm;
272 uint8_t wmep_aifsn;
273 uint8_t wmep_logcwmin; /* log2(cwmin) */
274 uint8_t wmep_logcwmax; /* log2(cwmax) */
275 uint8_t wmep_txopLimit;
276 uint8_t wmep_noackPolicy; /* 0 (ack), 1 (no ack) */
277 };
278 #define IEEE80211_TXOP_TO_US(_txop) ((_txop)<<5)
279 #define IEEE80211_US_TO_TXOP(_us) ((_us)>>5)
280
281 struct chanAccParams {
282 uint8_t cap_info; /* version of the current set */
283 struct wmeParams cap_wmeParams[WME_NUM_AC];
284 };
285
286 struct ieee80211_wme_state {
287 u_int wme_flags;
288 #define WME_F_AGGRMODE 0x00000001 /* STATUS: WME aggressive mode */
289 u_int wme_hipri_traffic; /* VI/VO frames in beacon interval */
290 u_int wme_hipri_switch_thresh;/* aggressive mode switch thresh */
291 u_int wme_hipri_switch_hysteresis;/* aggressive mode switch hysteresis */
292
293 struct wmeParams wme_params[WME_NUM_AC]; /* from assoc resp for each AC */
294 struct chanAccParams wme_wmeChanParams; /* WME params applied to self */
295 struct chanAccParams wme_wmeBssChanParams;/* WME params bcast to stations */
296 struct chanAccParams wme_chanParams; /* params applied to self */
297 struct chanAccParams wme_bssChanParams; /* params bcast to stations */
298
299 int (*wme_update)(struct ieee80211com *);
300 };
301
302 void ieee80211_wme_initparams(struct ieee80211vap *);
303 void ieee80211_wme_updateparams(struct ieee80211vap *);
304 void ieee80211_wme_updateparams_locked(struct ieee80211vap *);
305 void ieee80211_wme_vap_getparams(struct ieee80211vap *vap,
306 struct chanAccParams *);
307 void ieee80211_wme_ic_getparams(struct ieee80211com *ic,
308 struct chanAccParams *);
309 int ieee80211_wme_vap_ac_is_noack(struct ieee80211vap *vap, int ac);
310 void ieee80211_vap_update_preamble(struct ieee80211vap *vap);
311 void ieee80211_vap_update_erp_protmode(struct ieee80211vap *vap);
312 void ieee80211_vap_update_ht_protmode(struct ieee80211vap *vap);
313
314 /*
315 * Return pointer to the QoS field from a Qos frame.
316 */
317 static __inline uint8_t *
ieee80211_getqos(void * data)318 ieee80211_getqos(void *data)
319 {
320 struct ieee80211_frame *wh = data;
321
322 KASSERT(IEEE80211_QOS_HAS_SEQ(wh), ("QoS field is absent!"));
323
324 if (IEEE80211_IS_DSTODS(wh))
325 return (((struct ieee80211_qosframe_addr4 *)wh)->i_qos);
326 else
327 return (((struct ieee80211_qosframe *)wh)->i_qos);
328 }
329
330 /*
331 * Return the WME TID from a QoS frame. If no TID
332 * is present return the index for the "non-QoS" entry.
333 */
334 static __inline uint8_t
ieee80211_gettid(const struct ieee80211_frame * wh)335 ieee80211_gettid(const struct ieee80211_frame *wh)
336 {
337 uint8_t tid;
338
339 if (IEEE80211_QOS_HAS_SEQ(wh)) {
340 if (IEEE80211_IS_DSTODS(wh))
341 tid = ((const struct ieee80211_qosframe_addr4 *)wh)->
342 i_qos[0];
343 else
344 tid = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
345 tid &= IEEE80211_QOS_TID;
346 } else
347 tid = IEEE80211_NONQOS_TID;
348 return tid;
349 }
350
351 void ieee80211_waitfor_parent(struct ieee80211com *);
352 void ieee80211_start_locked(struct ieee80211vap *);
353 void ieee80211_init(void *);
354 void ieee80211_start_all(struct ieee80211com *);
355 void ieee80211_stop_locked(struct ieee80211vap *);
356 void ieee80211_stop(struct ieee80211vap *);
357 void ieee80211_stop_all(struct ieee80211com *);
358 void ieee80211_suspend_all(struct ieee80211com *);
359 void ieee80211_resume_all(struct ieee80211com *);
360 void ieee80211_restart_all(struct ieee80211com *);
361 void ieee80211_dturbo_switch(struct ieee80211vap *, int newflags);
362 void ieee80211_swbmiss(void *arg);
363 void ieee80211_beacon_miss(struct ieee80211com *);
364 int ieee80211_new_state(struct ieee80211vap *, enum ieee80211_state, int);
365 int ieee80211_new_state_locked(struct ieee80211vap *, enum ieee80211_state,
366 int);
367 void ieee80211_print_essid(const uint8_t *, int);
368 void ieee80211_dump_pkt(struct ieee80211com *,
369 const uint8_t *, int, int, int);
370
371 extern const char *ieee80211_opmode_name[];
372 extern const char *ieee80211_state_name[IEEE80211_S_MAX];
373 extern const char *ieee80211_wme_acnames[];
374
375 /*
376 * Beacon frames constructed by ieee80211_beacon_alloc
377 * have the following structure filled in so drivers
378 * can update the frame later w/ minimal overhead.
379 */
380 struct ieee80211_beacon_offsets {
381 uint8_t bo_flags[4]; /* update/state flags */
382 uint16_t *bo_caps; /* capabilities */
383 uint8_t *bo_cfp; /* start of CFParms element */
384 uint8_t *bo_tim; /* start of atim/dtim */
385 uint8_t *bo_wme; /* start of WME parameters */
386 uint8_t *bo_tdma; /* start of TDMA parameters */
387 uint8_t *bo_tim_trailer;/* start of fixed-size trailer */
388 uint16_t bo_tim_len; /* atim/dtim length in bytes */
389 uint16_t bo_tim_trailer_len;/* tim trailer length in bytes */
390 uint8_t *bo_erp; /* start of ERP element */
391 uint8_t *bo_htinfo; /* start of HT info element */
392 uint8_t *bo_ath; /* start of ATH parameters */
393 uint8_t *bo_appie; /* start of AppIE element */
394 uint16_t bo_appie_len; /* AppIE length in bytes */
395 uint16_t bo_csa_trailer_len;
396 uint8_t *bo_csa; /* start of CSA element */
397 uint8_t *bo_quiet; /* start of Quiet element */
398 uint8_t *bo_meshconf; /* start of MESHCONF element */
399 uint8_t *bo_vhtinfo; /* start of VHT info element (XXX VHTCAP?) */
400 uint8_t *bo_spare[2];
401 };
402 struct mbuf *ieee80211_beacon_alloc(struct ieee80211_node *);
403
404 /*
405 * Beacon frame updates are signaled through calls to iv_update_beacon
406 * with one of the IEEE80211_BEACON_* tokens defined below. For devices
407 * that construct beacon frames on the host this can trigger a rebuild
408 * or defer the processing. For devices that offload beacon frame
409 * handling this callback can be used to signal a rebuild. The bo_flags
410 * array in the ieee80211_beacon_offsets structure is intended to record
411 * deferred processing requirements; ieee80211_beacon_update uses the
412 * state to optimize work. Since this structure is owned by the driver
413 * and not visible to the 802.11 layer drivers must supply an iv_update_beacon
414 * callback that marks the flag bits and schedules (as necessary) an update.
415 */
416 enum {
417 IEEE80211_BEACON_CAPS = 0, /* capabilities */
418 IEEE80211_BEACON_TIM = 1, /* DTIM/ATIM */
419 IEEE80211_BEACON_WME = 2,
420 IEEE80211_BEACON_ERP = 3, /* Extended Rate Phy */
421 IEEE80211_BEACON_HTINFO = 4, /* HT Information */
422 IEEE80211_BEACON_APPIE = 5, /* Application IE's */
423 IEEE80211_BEACON_CFP = 6, /* CFParms */
424 IEEE80211_BEACON_CSA = 7, /* Channel Switch Announcement */
425 IEEE80211_BEACON_TDMA = 9, /* TDMA Info */
426 IEEE80211_BEACON_ATH = 10, /* ATH parameters */
427 IEEE80211_BEACON_MESHCONF = 11, /* Mesh Configuration */
428 IEEE80211_BEACON_QUIET = 12, /* Quiet time IE */
429 IEEE80211_BEACON_VHTINFO = 13, /* VHT information */
430 };
431 int ieee80211_beacon_update(struct ieee80211_node *,
432 struct mbuf *, int mcast);
433
434 void ieee80211_csa_startswitch(struct ieee80211com *,
435 struct ieee80211_channel *, int mode, int count);
436 void ieee80211_csa_completeswitch(struct ieee80211com *);
437 void ieee80211_csa_cancelswitch(struct ieee80211com *);
438 void ieee80211_cac_completeswitch(struct ieee80211vap *);
439
440 /*
441 * Notification methods called from the 802.11 state machine.
442 * Note that while these are defined here, their implementation
443 * is OS-specific.
444 */
445 void ieee80211_notify_node_join(struct ieee80211_node *, int newassoc);
446 void ieee80211_notify_node_leave(struct ieee80211_node *);
447 void ieee80211_notify_scan_done(struct ieee80211vap *);
448 void ieee80211_notify_wds_discover(struct ieee80211_node *);
449 void ieee80211_notify_csa(struct ieee80211com *,
450 const struct ieee80211_channel *, int mode, int count);
451 void ieee80211_notify_radar(struct ieee80211com *,
452 const struct ieee80211_channel *);
453 enum ieee80211_notify_cac_event {
454 IEEE80211_NOTIFY_CAC_START = 0, /* CAC timer started */
455 IEEE80211_NOTIFY_CAC_STOP = 1, /* CAC intentionally stopped */
456 IEEE80211_NOTIFY_CAC_RADAR = 2, /* CAC stopped due to radar detectio */
457 IEEE80211_NOTIFY_CAC_EXPIRE = 3, /* CAC expired w/o radar */
458 };
459 void ieee80211_notify_cac(struct ieee80211com *,
460 const struct ieee80211_channel *,
461 enum ieee80211_notify_cac_event);
462 void ieee80211_notify_node_deauth(struct ieee80211_node *);
463 void ieee80211_notify_node_auth(struct ieee80211_node *);
464 void ieee80211_notify_country(struct ieee80211vap *,
465 const uint8_t [IEEE80211_ADDR_LEN], const uint8_t cc[2]);
466 void ieee80211_notify_radio(struct ieee80211com *, int);
467 void ieee80211_notify_ifnet_change(struct ieee80211vap *, int);
468 #endif /* _NET80211_IEEE80211_PROTO_H_ */
469