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indent: Avoid using values of pointers that refer to deallocated space.
[freebsd-src.git] / sys / net80211 / ieee80211_var.h
blob5ca3f43a3335ecbdef230aeb1146e23da54f5f38
1 /*-
2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28 #ifndef _NET80211_IEEE80211_VAR_H_
29 #define _NET80211_IEEE80211_VAR_H_
30
31 /*
32 * Definitions for IEEE 802.11 drivers.
33 */
34 /* NB: portability glue must go first */
35 #if defined(__NetBSD__)
36 #include <net80211/ieee80211_netbsd.h>
37 #elif defined(__FreeBSD__)
38 #include <net80211/ieee80211_freebsd.h>
39 #elif defined(__linux__)
40 #include <net80211/ieee80211_linux.h>
41 #else
42 #error "No support for your operating system!"
43 #endif
44
45 #include <net80211/_ieee80211.h>
46 #include <net80211/ieee80211.h>
47 #include <net80211/ieee80211_ageq.h>
48 #include <net80211/ieee80211_crypto.h>
49 #include <net80211/ieee80211_dfs.h>
50 #include <net80211/ieee80211_ioctl.h> /* for ieee80211_stats */
51 #include <net80211/ieee80211_phy.h>
52 #include <net80211/ieee80211_power.h>
53 #include <net80211/ieee80211_node.h>
54 #include <net80211/ieee80211_proto.h>
55 #include <net80211/ieee80211_radiotap.h>
56 #include <net80211/ieee80211_scan.h>
57
58 #define IEEE80211_TXPOWER_MAX 100 /* .5 dBm (XXX units?) */
59 #define IEEE80211_TXPOWER_MIN 0 /* kill radio */
60
61 #define IEEE80211_DTIM_DEFAULT 1 /* default DTIM period */
62 #define IEEE80211_BINTVAL_DEFAULT 100 /* default beacon interval (TU's) */
63
64 #define IEEE80211_BMISS_MAX 2 /* maximum consecutive bmiss allowed */
65 #define IEEE80211_HWBMISS_DEFAULT 7 /* h/w bmiss threshold (beacons) */
66
67 #define IEEE80211_BGSCAN_INTVAL_MIN 15 /* min bg scan intvl (secs) */
68 #define IEEE80211_BGSCAN_INTVAL_DEFAULT (5*60) /* default bg scan intvl */
69
70 #define IEEE80211_BGSCAN_IDLE_MIN 100 /* min idle time (ms) */
71 #define IEEE80211_BGSCAN_IDLE_DEFAULT 250 /* default idle time (ms) */
72
73 #define IEEE80211_SCAN_VALID_MIN 10 /* min scan valid time (secs) */
74 #define IEEE80211_SCAN_VALID_DEFAULT 60 /* default scan valid time */
75
76 #define IEEE80211_PS_SLEEP 0x1 /* STA is in power saving mode */
77 #define IEEE80211_PS_MAX_QUEUE 50 /* maximum saved packets */
78
79 #define IEEE80211_FIXED_RATE_NONE 0xff
80 #define IEEE80211_TXMAX_DEFAULT 6 /* default ucast max retries */
81
82 #define IEEE80211_RTS_DEFAULT IEEE80211_RTS_MAX
83 #define IEEE80211_FRAG_DEFAULT IEEE80211_FRAG_MAX
84
85 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
86 #define IEEE80211_TU_TO_MS(x) (((x) * 1024) / 1000)
87 /* XXX TODO: cap this at 1, in case hz is not 1000 */
88 #define IEEE80211_TU_TO_TICKS(x)(((uint64_t)(x) * 1024 * hz) / (1000 * 1000))
89
90 /*
91 * 802.11 control state is split into a common portion that maps
92 * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
93 * that are bound to an ieee80211com instance and share a single
94 * underlying device. Each VAP has a corresponding OS device
95 * entity through which traffic flows and that applications use
96 * for issuing ioctls, etc.
97 */
98
99 /*
100 * Data common to one or more virtual AP's. State shared by
101 * the underlying device and the net80211 layer is exposed here;
102 * e.g. device-specific callbacks.
103 */
104 struct ieee80211vap;
105 typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
106
107 struct ieee80211_appie {
108 uint16_t ie_len; /* size of ie_data */
109 uint8_t ie_data[]; /* user-specified IE's */
110 };
111
112 struct ieee80211_tdma_param;
113 struct ieee80211_rate_table;
114 struct ieee80211_tx_ampdu;
115 struct ieee80211_rx_ampdu;
116 struct ieee80211_superg;
117 struct ieee80211_frame;
118
119 struct ieee80211com {
120 void *ic_softc; /* driver softc */
121 const char *ic_name; /* usually device name */
122 ieee80211_com_lock_t ic_comlock; /* state update lock */
123 ieee80211_tx_lock_t ic_txlock; /* ic/vap TX lock */
124 ieee80211_ff_lock_t ic_fflock; /* stageq/ni_tx_superg lock */
125 LIST_ENTRY(ieee80211com) ic_next; /* on global list */
126 TAILQ_HEAD(, ieee80211vap) ic_vaps; /* list of vap instances */
127 int ic_headroom; /* driver tx headroom needs */
128 enum ieee80211_phytype ic_phytype; /* XXX wrong for multi-mode */
129 enum ieee80211_opmode ic_opmode; /* operation mode */
130 struct callout ic_inact; /* inactivity processing */
131 struct taskqueue *ic_tq; /* deferred state thread */
132 struct task ic_parent_task; /* deferred parent processing */
133 struct task ic_promisc_task;/* deferred promisc update */
134 struct task ic_mcast_task; /* deferred mcast update */
135 struct task ic_chan_task; /* deferred channel change */
136 struct task ic_bmiss_task; /* deferred beacon miss hndlr */
137 struct task ic_chw_task; /* deferred HT CHW update */
138 struct task ic_wme_task; /* deferred WME update */
139 struct task ic_restart_task; /* deferred device restart */
140
141 counter_u64_t ic_ierrors; /* input errors */
142 counter_u64_t ic_oerrors; /* output errors */
143
144 uint32_t ic_flags; /* state flags */
145 uint32_t ic_flags_ext; /* extended state flags */
146 uint32_t ic_flags_ht; /* HT state flags */
147 uint32_t ic_flags_ven; /* vendor state flags */
148 uint32_t ic_caps; /* capabilities */
149 uint32_t ic_htcaps; /* HT capabilities */
150 uint32_t ic_htextcaps; /* HT extended capabilities */
151 uint32_t ic_cryptocaps; /* crypto capabilities */
152 /* set of mode capabilities */
153 uint8_t ic_modecaps[IEEE80211_MODE_BYTES];
154 uint8_t ic_promisc; /* vap's needing promisc mode */
155 uint8_t ic_allmulti; /* vap's needing all multicast*/
156 uint8_t ic_nrunning; /* vap's marked running */
157 uint8_t ic_curmode; /* current mode */
158 uint8_t ic_macaddr[IEEE80211_ADDR_LEN];
159 uint16_t ic_bintval; /* beacon interval */
160 uint16_t ic_lintval; /* listen interval */
161 uint16_t ic_holdover; /* PM hold over duration */
162 uint16_t ic_txpowlimit; /* global tx power limit */
163 struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
164
165 /*
166 * Channel state:
167 *
168 * ic_channels is the set of available channels for the device;
169 * it is setup by the driver
170 * ic_nchans is the number of valid entries in ic_channels
171 * ic_chan_avail is a bit vector of these channels used to check
172 * whether a channel is available w/o searching the channel table.
173 * ic_chan_active is a (potentially) constrained subset of
174 * ic_chan_avail that reflects any mode setting or user-specified
175 * limit on the set of channels to use/scan
176 * ic_curchan is the current channel the device is set to; it may
177 * be different from ic_bsschan when we are off-channel scanning
178 * or otherwise doing background work
179 * ic_bsschan is the channel selected for operation; it may
180 * be undefined (IEEE80211_CHAN_ANYC)
181 * ic_prevchan is a cached ``previous channel'' used to optimize
182 * lookups when switching back+forth between two channels
183 * (e.g. for dynamic turbo)
184 */
185 int ic_nchans; /* # entries in ic_channels */
186 struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
187 uint8_t ic_chan_avail[IEEE80211_CHAN_BYTES];
188 uint8_t ic_chan_active[IEEE80211_CHAN_BYTES];
189 uint8_t ic_chan_scan[IEEE80211_CHAN_BYTES];
190 struct ieee80211_channel *ic_curchan; /* current channel */
191 const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
192 struct ieee80211_channel *ic_bsschan; /* bss channel */
193 struct ieee80211_channel *ic_prevchan; /* previous channel */
194 struct ieee80211_regdomain ic_regdomain;/* regulatory data */
195 struct ieee80211_appie *ic_countryie; /* calculated country ie */
196 struct ieee80211_channel *ic_countryie_chan;
197
198 /* 802.11h/DFS state */
199 struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
200 short ic_csa_mode; /* mode for doing CSA */
201 short ic_csa_count; /* count for doing CSA */
202 struct ieee80211_dfs_state ic_dfs; /* DFS state */
203
204 struct ieee80211_scan_state *ic_scan; /* scan state */
205 struct ieee80211_scan_methods *ic_scan_methods; /* scan methods */
206 int ic_lastdata; /* time of last data frame */
207 int ic_lastscan; /* time last scan completed */
208
209 /* NB: this is the union of all vap stations/neighbors */
210 int ic_max_keyix; /* max h/w key index */
211 struct ieee80211_node_table ic_sta; /* stations/neighbors */
212 struct ieee80211_ageq ic_stageq; /* frame staging queue */
213 uint32_t ic_hash_key; /* random key for mac hash */
214
215 /* XXX multi-bss: split out common/vap parts */
216 struct ieee80211_wme_state ic_wme; /* WME/WMM state */
217
218 /* XXX multi-bss: can per-vap be done/make sense? */
219 enum ieee80211_protmode ic_protmode; /* 802.11g protection mode */
220 uint16_t ic_nonerpsta; /* # non-ERP stations */
221 uint16_t ic_longslotsta; /* # long slot time stations */
222 uint16_t ic_sta_assoc; /* stations associated */
223 uint16_t ic_ht_sta_assoc;/* HT stations associated */
224 uint16_t ic_ht40_sta_assoc;/* HT40 stations associated */
225 uint8_t ic_curhtprotmode;/* HTINFO bss state */
226 enum ieee80211_protmode ic_htprotmode; /* HT protection mode */
227 int ic_lastnonerp; /* last time non-ERP sta noted*/
228 int ic_lastnonht; /* last time non-HT sta noted */
229 uint8_t ic_rxstream; /* # RX streams */
230 uint8_t ic_txstream; /* # TX streams */
231
232 /* optional state for Atheros SuperG protocol extensions */
233 struct ieee80211_superg *ic_superg;
234
235 /* radiotap handling */
236 struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
237 void *ic_txchan; /* channel state in ic_th */
238 struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
239 void *ic_rxchan; /* channel state in ic_rh */
240 int ic_montaps; /* active monitor mode taps */
241
242 /* virtual ap create/delete */
243 struct ieee80211vap* (*ic_vap_create)(struct ieee80211com *,
244 const char [IFNAMSIZ], int,
245 enum ieee80211_opmode, int,
246 const uint8_t [IEEE80211_ADDR_LEN],
247 const uint8_t [IEEE80211_ADDR_LEN]);
248 void (*ic_vap_delete)(struct ieee80211vap *);
249 /* device specific ioctls */
250 int (*ic_ioctl)(struct ieee80211com *,
251 u_long, void *);
252 /* start/stop device */
253 void (*ic_parent)(struct ieee80211com *);
254 /* operating mode attachment */
255 ieee80211vap_attach ic_vattach[IEEE80211_OPMODE_MAX];
256 /* return hardware/radio capabilities */
257 void (*ic_getradiocaps)(struct ieee80211com *,
258 int, int *, struct ieee80211_channel []);
259 /* check and/or prepare regdomain state change */
260 int (*ic_setregdomain)(struct ieee80211com *,
261 struct ieee80211_regdomain *,
262 int, struct ieee80211_channel []);
263
264 int (*ic_set_quiet)(struct ieee80211_node *,
265 u_int8_t *quiet_elm);
266
267 /* regular transmit */
268 int (*ic_transmit)(struct ieee80211com *,
269 struct mbuf *);
270 /* send/recv 802.11 management frame */
271 int (*ic_send_mgmt)(struct ieee80211_node *,
272 int, int);
273 /* send raw 802.11 frame */
274 int (*ic_raw_xmit)(struct ieee80211_node *,
275 struct mbuf *,
276 const struct ieee80211_bpf_params *);
277 /* update device state for 802.11 slot time change */
278 void (*ic_updateslot)(struct ieee80211com *);
279 /* handle multicast state changes */
280 void (*ic_update_mcast)(struct ieee80211com *);
281 /* handle promiscuous mode changes */
282 void (*ic_update_promisc)(struct ieee80211com *);
283 /* new station association callback/notification */
284 void (*ic_newassoc)(struct ieee80211_node *, int);
285 /* TDMA update notification */
286 void (*ic_tdma_update)(struct ieee80211_node *,
287 const struct ieee80211_tdma_param *, int);
288 /* node state management */
289 struct ieee80211_node* (*ic_node_alloc)(struct ieee80211vap *,
290 const uint8_t [IEEE80211_ADDR_LEN]);
291 void (*ic_node_free)(struct ieee80211_node *);
292 void (*ic_node_cleanup)(struct ieee80211_node *);
293 void (*ic_node_age)(struct ieee80211_node *);
294 void (*ic_node_drain)(struct ieee80211_node *);
295 int8_t (*ic_node_getrssi)(const struct ieee80211_node*);
296 void (*ic_node_getsignal)(const struct ieee80211_node*,
297 int8_t *, int8_t *);
298 void (*ic_node_getmimoinfo)(
299 const struct ieee80211_node*,
300 struct ieee80211_mimo_info *);
301 /* scanning support */
302 void (*ic_scan_start)(struct ieee80211com *);
303 void (*ic_scan_end)(struct ieee80211com *);
304 void (*ic_set_channel)(struct ieee80211com *);
305 void (*ic_scan_curchan)(struct ieee80211_scan_state *,
306 unsigned long);
307 void (*ic_scan_mindwell)(struct ieee80211_scan_state *);
308
309 /*
310 * 802.11n ADDBA support. A simple/generic implementation
311 * of A-MPDU tx aggregation is provided; the driver may
312 * override these methods to provide their own support.
313 * A-MPDU rx re-ordering happens automatically if the
314 * driver passes out-of-order frames to ieee80211_input
315 * from an assocated HT station.
316 */
317 int (*ic_recv_action)(struct ieee80211_node *,
318 const struct ieee80211_frame *,
319 const uint8_t *frm, const uint8_t *efrm);
320 int (*ic_send_action)(struct ieee80211_node *,
321 int category, int action, void *);
322 /* check if A-MPDU should be enabled this station+ac */
323 int (*ic_ampdu_enable)(struct ieee80211_node *,
324 struct ieee80211_tx_ampdu *);
325 /* start/stop doing A-MPDU tx aggregation for a station */
326 int (*ic_addba_request)(struct ieee80211_node *,
327 struct ieee80211_tx_ampdu *,
328 int dialogtoken, int baparamset,
329 int batimeout);
330 int (*ic_addba_response)(struct ieee80211_node *,
331 struct ieee80211_tx_ampdu *,
332 int status, int baparamset, int batimeout);
333 void (*ic_addba_stop)(struct ieee80211_node *,
334 struct ieee80211_tx_ampdu *);
335 void (*ic_addba_response_timeout)(struct ieee80211_node *,
336 struct ieee80211_tx_ampdu *);
337 /* BAR response received */
338 void (*ic_bar_response)(struct ieee80211_node *,
339 struct ieee80211_tx_ampdu *, int status);
340 /* start/stop doing A-MPDU rx processing for a station */
341 int (*ic_ampdu_rx_start)(struct ieee80211_node *,
342 struct ieee80211_rx_ampdu *, int baparamset,
343 int batimeout, int baseqctl);
344 void (*ic_ampdu_rx_stop)(struct ieee80211_node *,
345 struct ieee80211_rx_ampdu *);
346
347 /* The channel width has changed (20<->2040) */
348 void (*ic_update_chw)(struct ieee80211com *);
349
350 uint64_t ic_spare[7];
351 };
352
353 struct ieee80211_aclator;
354 struct ieee80211_tdma_state;
355 struct ieee80211_mesh_state;
356 struct ieee80211_hwmp_state;
357
358 struct ieee80211vap {
359 struct ifmedia iv_media; /* interface media config */
360 struct ifnet *iv_ifp; /* associated device */
361 struct bpf_if *iv_rawbpf; /* packet filter structure */
362 struct sysctl_ctx_list *iv_sysctl; /* dynamic sysctl context */
363 struct sysctl_oid *iv_oid; /* net.wlan.X sysctl oid */
364
365 TAILQ_ENTRY(ieee80211vap) iv_next; /* list of vap instances */
366 struct ieee80211com *iv_ic; /* back ptr to common state */
367 /* MAC address: ifp or ic */
368 uint8_t iv_myaddr[IEEE80211_ADDR_LEN];
369 uint32_t iv_debug; /* debug msg flags */
370 struct ieee80211_stats iv_stats; /* statistics */
371
372 uint32_t iv_flags; /* state flags */
373 uint32_t iv_flags_ext; /* extended state flags */
374 uint32_t iv_flags_ht; /* HT state flags */
375 uint32_t iv_flags_ven; /* vendor state flags */
376 uint32_t iv_ifflags; /* ifnet flags */
377 uint32_t iv_caps; /* capabilities */
378 uint32_t iv_htcaps; /* HT capabilities */
379 uint32_t iv_htextcaps; /* HT extended capabilities */
380 enum ieee80211_opmode iv_opmode; /* operation mode */
381 enum ieee80211_state iv_state; /* state machine state */
382 enum ieee80211_state iv_nstate; /* pending state */
383 int iv_nstate_arg; /* pending state arg */
384 struct task iv_nstate_task; /* deferred state processing */
385 struct task iv_swbmiss_task;/* deferred iv_bmiss call */
386 struct callout iv_mgtsend; /* mgmt frame response timer */
387 /* inactivity timer settings */
388 int iv_inact_init; /* setting for new station */
389 int iv_inact_auth; /* auth but not assoc setting */
390 int iv_inact_run; /* authorized setting */
391 int iv_inact_probe; /* inactive probe time */
392
393 int iv_des_nssid; /* # desired ssids */
394 struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
395 uint8_t iv_des_bssid[IEEE80211_ADDR_LEN];
396 struct ieee80211_channel *iv_des_chan; /* desired channel */
397 uint16_t iv_des_mode; /* desired mode */
398 int iv_nicknamelen; /* XXX junk */
399 uint8_t iv_nickname[IEEE80211_NWID_LEN];
400 u_int iv_bgscanidle; /* bg scan idle threshold */
401 u_int iv_bgscanintvl; /* bg scan min interval */
402 u_int iv_scanvalid; /* scan cache valid threshold */
403 u_int iv_scanreq_duration;
404 u_int iv_scanreq_mindwell;
405 u_int iv_scanreq_maxdwell;
406 uint16_t iv_scanreq_flags;/* held scan request params */
407 uint8_t iv_scanreq_nssid;
408 struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
409 /* sta-mode roaming state */
410 enum ieee80211_roamingmode iv_roaming; /* roaming mode */
411 struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
412
413 uint8_t iv_bmissthreshold;
414 uint8_t iv_bmiss_count; /* current beacon miss count */
415 int iv_bmiss_max; /* max bmiss before scan */
416 uint16_t iv_swbmiss_count;/* beacons in last period */
417 uint16_t iv_swbmiss_period;/* s/w bmiss period */
418 struct callout iv_swbmiss; /* s/w beacon miss timer */
419
420 int iv_ampdu_rxmax; /* A-MPDU rx limit (bytes) */
421 int iv_ampdu_density;/* A-MPDU density */
422 int iv_ampdu_limit; /* A-MPDU tx limit (bytes) */
423 int iv_amsdu_limit; /* A-MSDU tx limit (bytes) */
424 u_int iv_ampdu_mintraffic[WME_NUM_AC];
425
426 struct ieee80211_beacon_offsets iv_bcn_off;
427 uint32_t *iv_aid_bitmap; /* association id map */
428 uint16_t iv_max_aid;
429 uint16_t iv_sta_assoc; /* stations associated */
430 uint16_t iv_ps_sta; /* stations in power save */
431 uint16_t iv_ps_pending; /* ps sta's w/ pending frames */
432 uint16_t iv_txseq; /* mcast xmit seq# space */
433 uint16_t iv_tim_len; /* ic_tim_bitmap size (bytes) */
434 uint8_t *iv_tim_bitmap; /* power-save stations w/ data*/
435 uint8_t iv_dtim_period; /* DTIM period */
436 uint8_t iv_dtim_count; /* DTIM count from last bcn */
437 /* set/unset aid pwrsav state */
438 uint8_t iv_quiet; /* Quiet Element */
439 uint8_t iv_quiet_count; /* constant count for Quiet Element */
440 uint8_t iv_quiet_count_value; /* variable count for Quiet Element */
441 uint8_t iv_quiet_period; /* period for Quiet Element */
442 uint16_t iv_quiet_duration; /* duration for Quiet Element */
443 uint16_t iv_quiet_offset; /* offset for Quiet Element */
444 int iv_csa_count; /* count for doing CSA */
445
446 struct ieee80211_node *iv_bss; /* information for this node */
447 struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
448 uint16_t iv_rtsthreshold;
449 uint16_t iv_fragthreshold;
450 int iv_inact_timer; /* inactivity timer wait */
451 /* application-specified IE's to attach to mgt frames */
452 struct ieee80211_appie *iv_appie_beacon;
453 struct ieee80211_appie *iv_appie_probereq;
454 struct ieee80211_appie *iv_appie_proberesp;
455 struct ieee80211_appie *iv_appie_assocreq;
456 struct ieee80211_appie *iv_appie_assocresp;
457 struct ieee80211_appie *iv_appie_wpa;
458 uint8_t *iv_wpa_ie;
459 uint8_t *iv_rsn_ie;
460 uint16_t iv_max_keyix; /* max h/w key index */
461 ieee80211_keyix iv_def_txkey; /* default/group tx key index */
462 struct ieee80211_key iv_nw_keys[IEEE80211_WEP_NKID];
463 int (*iv_key_alloc)(struct ieee80211vap *,
464 struct ieee80211_key *,
465 ieee80211_keyix *, ieee80211_keyix *);
466 int (*iv_key_delete)(struct ieee80211vap *,
467 const struct ieee80211_key *);
468 int (*iv_key_set)(struct ieee80211vap *,
469 const struct ieee80211_key *);
470 void (*iv_key_update_begin)(struct ieee80211vap *);
471 void (*iv_key_update_end)(struct ieee80211vap *);
472
473 const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
474 void *iv_ec; /* private auth state */
475
476 const struct ieee80211_aclator *iv_acl; /* acl glue */
477 void *iv_as; /* private aclator state */
478
479 const struct ieee80211_ratectl *iv_rate;
480 void *iv_rs; /* private ratectl state */
481
482 struct ieee80211_tdma_state *iv_tdma; /* tdma state */
483 struct ieee80211_mesh_state *iv_mesh; /* MBSS state */
484 struct ieee80211_hwmp_state *iv_hwmp; /* HWMP state */
485
486 /* operate-mode detach hook */
487 void (*iv_opdetach)(struct ieee80211vap *);
488 /* receive processing */
489 int (*iv_input)(struct ieee80211_node *,
490 struct mbuf *,
491 const struct ieee80211_rx_stats *,
492 int, int);
493 void (*iv_recv_mgmt)(struct ieee80211_node *,
494 struct mbuf *, int,
495 const struct ieee80211_rx_stats *,
496 int, int);
497 void (*iv_recv_ctl)(struct ieee80211_node *,
498 struct mbuf *, int);
499 void (*iv_deliver_data)(struct ieee80211vap *,
500 struct ieee80211_node *, struct mbuf *);
501 #if 0
502 /* send processing */
503 int (*iv_send_mgmt)(struct ieee80211_node *,
504 int, int);
505 #endif
506 /* beacon miss processing */
507 void (*iv_bmiss)(struct ieee80211vap *);
508 /* reset device state after 802.11 parameter/state change */
509 int (*iv_reset)(struct ieee80211vap *, u_long);
510 /* [schedule] beacon frame update */
511 void (*iv_update_beacon)(struct ieee80211vap *, int);
512 /* power save handling */
513 void (*iv_update_ps)(struct ieee80211vap *, int);
514 int (*iv_set_tim)(struct ieee80211_node *, int);
515 void (*iv_node_ps)(struct ieee80211_node *, int);
516 void (*iv_sta_ps)(struct ieee80211vap *, int);
517 void (*iv_recv_pspoll)(struct ieee80211_node *,
518 struct mbuf *);
519
520 /* state machine processing */
521 int (*iv_newstate)(struct ieee80211vap *,
522 enum ieee80211_state, int);
523 /* 802.3 output method for raw frame xmit */
524 int (*iv_output)(struct ifnet *, struct mbuf *,
525 const struct sockaddr *, struct route *);
526 uint64_t iv_spare[6];
527 };
528 MALLOC_DECLARE(M_80211_VAP);
529
530 #define IEEE80211_ADDR_EQ(a1,a2) (memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
531 #define IEEE80211_ADDR_COPY(dst,src) memcpy(dst,src,IEEE80211_ADDR_LEN)
532
533 /* ic_flags/iv_flags */
534 #define IEEE80211_F_TURBOP 0x00000001 /* CONF: ATH Turbo enabled*/
535 #define IEEE80211_F_COMP 0x00000002 /* CONF: ATH comp enabled */
536 #define IEEE80211_F_FF 0x00000004 /* CONF: ATH FF enabled */
537 #define IEEE80211_F_BURST 0x00000008 /* CONF: bursting enabled */
538 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
539 #define IEEE80211_F_PRIVACY 0x00000010 /* CONF: privacy enabled */
540 #define IEEE80211_F_PUREG 0x00000020 /* CONF: 11g w/o 11b sta's */
541 #define IEEE80211_F_SCAN 0x00000080 /* STATUS: scanning */
542 #define IEEE80211_F_ASCAN 0x00000100 /* STATUS: active scan */
543 #define IEEE80211_F_SIBSS 0x00000200 /* STATUS: start IBSS */
544 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
545 #define IEEE80211_F_SHSLOT 0x00000400 /* STATUS: use short slot time*/
546 #define IEEE80211_F_PMGTON 0x00000800 /* CONF: Power mgmt enable */
547 #define IEEE80211_F_DESBSSID 0x00001000 /* CONF: des_bssid is set */
548 #define IEEE80211_F_WME 0x00002000 /* CONF: enable WME use */
549 #define IEEE80211_F_BGSCAN 0x00004000 /* CONF: bg scan enabled (???)*/
550 #define IEEE80211_F_SWRETRY 0x00008000 /* CONF: sw tx retry enabled */
551 #define IEEE80211_F_TXPOW_FIXED 0x00010000 /* TX Power: fixed rate */
552 #define IEEE80211_F_IBSSON 0x00020000 /* CONF: IBSS creation enable */
553 #define IEEE80211_F_SHPREAMBLE 0x00040000 /* STATUS: use short preamble */
554 #define IEEE80211_F_DATAPAD 0x00080000 /* CONF: do alignment pad */
555 #define IEEE80211_F_USEPROT 0x00100000 /* STATUS: protection enabled */
556 #define IEEE80211_F_USEBARKER 0x00200000 /* STATUS: use barker preamble*/
557 #define IEEE80211_F_CSAPENDING 0x00400000 /* STATUS: chan switch pending*/
558 #define IEEE80211_F_WPA1 0x00800000 /* CONF: WPA enabled */
559 #define IEEE80211_F_WPA2 0x01000000 /* CONF: WPA2 enabled */
560 #define IEEE80211_F_WPA 0x01800000 /* CONF: WPA/WPA2 enabled */
561 #define IEEE80211_F_DROPUNENC 0x02000000 /* CONF: drop unencrypted */
562 #define IEEE80211_F_COUNTERM 0x04000000 /* CONF: TKIP countermeasures */
563 #define IEEE80211_F_HIDESSID 0x08000000 /* CONF: hide SSID in beacon */
564 #define IEEE80211_F_NOBRIDGE 0x10000000 /* CONF: dis. internal bridge */
565 #define IEEE80211_F_PCF 0x20000000 /* CONF: PCF enabled */
566 #define IEEE80211_F_DOTH 0x40000000 /* CONF: 11h enabled */
567 #define IEEE80211_F_DWDS 0x80000000 /* CONF: Dynamic WDS enabled */
568
569 #define IEEE80211_F_BITS \
570 "\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN\11ASCAN\12SIBSS" \
571 "\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY\21TXPOW_FIXED" \
572 "\22IBSSON\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
573 "\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
574 "\37DOTH\40DWDS"
575
576 /* Atheros protocol-specific flags */
577 #define IEEE80211_F_ATHEROS \
578 (IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
579 /* Check if an Atheros capability was negotiated for use */
580 #define IEEE80211_ATH_CAP(vap, ni, bit) \
581 ((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
582
583 /* ic_flags_ext/iv_flags_ext */
584 #define IEEE80211_FEXT_INACT 0x00000002 /* CONF: sta inact handling */
585 #define IEEE80211_FEXT_SCANWAIT 0x00000004 /* STATUS: awaiting scan */
586 /* 0x00000006 reserved */
587 #define IEEE80211_FEXT_BGSCAN 0x00000008 /* STATUS: complete bgscan */
588 #define IEEE80211_FEXT_WPS 0x00000010 /* CONF: WPS enabled */
589 #define IEEE80211_FEXT_TSN 0x00000020 /* CONF: TSN enabled */
590 #define IEEE80211_FEXT_SCANREQ 0x00000040 /* STATUS: scan req params */
591 #define IEEE80211_FEXT_RESUME 0x00000080 /* STATUS: start on resume */
592 #define IEEE80211_FEXT_4ADDR 0x00000100 /* CONF: apply 4-addr encap */
593 #define IEEE80211_FEXT_NONERP_PR 0x00000200 /* STATUS: non-ERP sta present*/
594 #define IEEE80211_FEXT_SWBMISS 0x00000400 /* CONF: do bmiss in s/w */
595 #define IEEE80211_FEXT_DFS 0x00000800 /* CONF: DFS enabled */
596 #define IEEE80211_FEXT_DOTD 0x00001000 /* CONF: 11d enabled */
597 #define IEEE80211_FEXT_STATEWAIT 0x00002000 /* STATUS: awaiting state chg */
598 #define IEEE80211_FEXT_REINIT 0x00004000 /* STATUS: INIT state first */
599 #define IEEE80211_FEXT_BPF 0x00008000 /* STATUS: BPF tap present */
600 /* NB: immutable: should be set only when creating a vap */
601 #define IEEE80211_FEXT_WDSLEGACY 0x00010000 /* CONF: legacy WDS operation */
602 #define IEEE80211_FEXT_PROBECHAN 0x00020000 /* CONF: probe passive channel*/
603 #define IEEE80211_FEXT_UNIQMAC 0x00040000 /* CONF: user or computed mac */
604
605 #define IEEE80211_FEXT_BITS \
606 "\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
607 "\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
608 "\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC"
609
610 /* ic_flags_ht/iv_flags_ht */
611 #define IEEE80211_FHT_NONHT_PR 0x00000001 /* STATUS: non-HT sta present */
612 #define IEEE80211_FHT_GF 0x00040000 /* CONF: Greenfield enabled */
613 #define IEEE80211_FHT_HT 0x00080000 /* CONF: HT supported */
614 #define IEEE80211_FHT_AMPDU_TX 0x00100000 /* CONF: A-MPDU tx supported */
615 #define IEEE80211_FHT_AMPDU_RX 0x00200000 /* CONF: A-MPDU rx supported */
616 #define IEEE80211_FHT_AMSDU_TX 0x00400000 /* CONF: A-MSDU tx supported */
617 #define IEEE80211_FHT_AMSDU_RX 0x00800000 /* CONF: A-MSDU rx supported */
618 #define IEEE80211_FHT_USEHT40 0x01000000 /* CONF: 20/40 use enabled */
619 #define IEEE80211_FHT_PUREN 0x02000000 /* CONF: 11n w/o legacy sta's */
620 #define IEEE80211_FHT_SHORTGI20 0x04000000 /* CONF: short GI in HT20 */
621 #define IEEE80211_FHT_SHORTGI40 0x08000000 /* CONF: short GI in HT40 */
622 #define IEEE80211_FHT_HTCOMPAT 0x10000000 /* CONF: HT vendor OUI's */
623 #define IEEE80211_FHT_RIFS 0x20000000 /* CONF: RIFS enabled */
624 #define IEEE80211_FHT_STBC_TX 0x40000000 /* CONF: STBC tx enabled */
625 #define IEEE80211_FHT_STBC_RX 0x80000000 /* CONF: STBC rx enabled */
626
627 #define IEEE80211_FHT_BITS \
628 "\20\1NONHT_PR" \
629 "\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
630 "\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
631 "\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
632
633 #define IEEE80211_FVEN_BITS "\20"
634
635 /* ic_caps/iv_caps: device driver capabilities */
636 /* 0x2e available */
637 #define IEEE80211_C_STA 0x00000001 /* CAPABILITY: STA available */
638 #define IEEE80211_C_8023ENCAP 0x00000002 /* CAPABILITY: 802.3 encap */
639 #define IEEE80211_C_FF 0x00000040 /* CAPABILITY: ATH FF avail */
640 #define IEEE80211_C_TURBOP 0x00000080 /* CAPABILITY: ATH Turbo avail*/
641 #define IEEE80211_C_IBSS 0x00000100 /* CAPABILITY: IBSS available */
642 #define IEEE80211_C_PMGT 0x00000200 /* CAPABILITY: Power mgmt */
643 #define IEEE80211_C_HOSTAP 0x00000400 /* CAPABILITY: HOSTAP avail */
644 #define IEEE80211_C_AHDEMO 0x00000800 /* CAPABILITY: Old Adhoc Demo */
645 #define IEEE80211_C_SWRETRY 0x00001000 /* CAPABILITY: sw tx retry */
646 #define IEEE80211_C_TXPMGT 0x00002000 /* CAPABILITY: tx power mgmt */
647 #define IEEE80211_C_SHSLOT 0x00004000 /* CAPABILITY: short slottime */
648 #define IEEE80211_C_SHPREAMBLE 0x00008000 /* CAPABILITY: short preamble */
649 #define IEEE80211_C_MONITOR 0x00010000 /* CAPABILITY: monitor mode */
650 #define IEEE80211_C_DFS 0x00020000 /* CAPABILITY: DFS/radar avail*/
651 #define IEEE80211_C_MBSS 0x00040000 /* CAPABILITY: MBSS available */
652 #define IEEE80211_C_SWSLEEP 0x00080000 /* CAPABILITY: do sleep here */
653 #define IEEE80211_C_SWAMSDUTX 0x00100000 /* CAPABILITY: software A-MSDU TX */
654 /* 0x7c0000 available */
655 #define IEEE80211_C_WPA1 0x00800000 /* CAPABILITY: WPA1 avail */
656 #define IEEE80211_C_WPA2 0x01000000 /* CAPABILITY: WPA2 avail */
657 #define IEEE80211_C_WPA 0x01800000 /* CAPABILITY: WPA1+WPA2 avail*/
658 #define IEEE80211_C_BURST 0x02000000 /* CAPABILITY: frame bursting */
659 #define IEEE80211_C_WME 0x04000000 /* CAPABILITY: WME avail */
660 #define IEEE80211_C_WDS 0x08000000 /* CAPABILITY: 4-addr support */
661 /* 0x10000000 reserved */
662 #define IEEE80211_C_BGSCAN 0x20000000 /* CAPABILITY: bg scanning */
663 #define IEEE80211_C_TXFRAG 0x40000000 /* CAPABILITY: tx fragments */
664 #define IEEE80211_C_TDMA 0x80000000 /* CAPABILITY: TDMA avail */
665 /* XXX protection/barker? */
666
667 #define IEEE80211_C_OPMODE \
668 (IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \
669 IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \
670 IEEE80211_C_TDMA | IEEE80211_C_MBSS)
671
672 #define IEEE80211_C_BITS \
673 "\20\1STA\002803ENCAP\7FF\10TURBOP\11IBSS\12PMGT" \
674 "\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \
675 "\21MONITOR\22DFS\23MBSS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \
676 "\37TXFRAG\40TDMA"
677
678 /*
679 * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities
680 *
681 * NB: the low 16-bits are the 802.11 definitions, the upper
682 * 16-bits are used to define s/w/driver capabilities.
683 */
684 #define IEEE80211_HTC_AMPDU 0x00010000 /* CAPABILITY: A-MPDU tx */
685 #define IEEE80211_HTC_AMSDU 0x00020000 /* CAPABILITY: A-MSDU tx */
686 /* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
687 #define IEEE80211_HTC_HT 0x00040000 /* CAPABILITY: HT operation */
688 #define IEEE80211_HTC_SMPS 0x00080000 /* CAPABILITY: MIMO power save*/
689 #define IEEE80211_HTC_RIFS 0x00100000 /* CAPABILITY: RIFS support */
690 #define IEEE80211_HTC_RXUNEQUAL 0x00200000 /* CAPABILITY: RX unequal MCS */
691 #define IEEE80211_HTC_RXMCS32 0x00400000 /* CAPABILITY: MCS32 support */
692 #define IEEE80211_HTC_TXUNEQUAL 0x00800000 /* CAPABILITY: TX unequal MCS */
693 #define IEEE80211_HTC_TXMCS32 0x01000000 /* CAPABILITY: MCS32 suport */
694
695 #define IEEE80211_C_HTCAP_BITS \
696 "\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
697 "\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS"
698
699 int ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
700 void ieee80211_ifattach(struct ieee80211com *);
701 void ieee80211_ifdetach(struct ieee80211com *);
702 int ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
703 const char name[IFNAMSIZ], int unit,
704 enum ieee80211_opmode opmode, int flags,
705 const uint8_t bssid[IEEE80211_ADDR_LEN]);
706 int ieee80211_vap_attach(struct ieee80211vap *,
707 ifm_change_cb_t, ifm_stat_cb_t,
708 const uint8_t macaddr[IEEE80211_ADDR_LEN]);
709 void ieee80211_vap_detach(struct ieee80211vap *);
710 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
711 const struct ieee80211_channel *);
712 void ieee80211_announce(struct ieee80211com *);
713 void ieee80211_announce_channels(struct ieee80211com *);
714 void ieee80211_drain(struct ieee80211com *);
715 void ieee80211_chan_init(struct ieee80211com *);
716 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
717 struct ieee80211com *ieee80211_find_com(const char *name);
718 typedef void ieee80211_com_iter_func(void *, struct ieee80211com *);
719 void ieee80211_iterate_coms(ieee80211_com_iter_func *, void *);
720 int ieee80211_media_change(struct ifnet *);
721 void ieee80211_media_status(struct ifnet *, struct ifmediareq *);
722 int ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
723 int ieee80211_rate2media(struct ieee80211com *, int,
724 enum ieee80211_phymode);
725 int ieee80211_media2rate(int);
726 int ieee80211_mhz2ieee(u_int, u_int);
727 int ieee80211_chan2ieee(struct ieee80211com *,
728 const struct ieee80211_channel *);
729 u_int ieee80211_ieee2mhz(u_int, u_int);
730 int ieee80211_add_channel(struct ieee80211_channel[], int, int *,
731 uint8_t, uint16_t, int8_t, uint32_t, const uint8_t[]);
732 int ieee80211_add_channel_ht40(struct ieee80211_channel[], int, int *,
733 uint8_t, int8_t, uint32_t);
734 int ieee80211_add_channel_list_2ghz(struct ieee80211_channel[], int, int *,
735 const uint8_t[], int, const uint8_t[], int);
736 int ieee80211_add_channel_list_5ghz(struct ieee80211_channel[], int, int *,
737 const uint8_t[], int, const uint8_t[], int);
738 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
739 int freq, int flags);
740 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
741 int ieee, int flags);
742 struct ieee80211_channel *ieee80211_lookup_channel_rxstatus(struct ieee80211vap *,
743 const struct ieee80211_rx_stats *);
744 int ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
745 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
746 uint32_t ieee80211_mac_hash(const struct ieee80211com *,
747 const uint8_t addr[IEEE80211_ADDR_LEN]);
748 char ieee80211_channel_type_char(const struct ieee80211_channel *c);
749
750 void ieee80211_radiotap_attach(struct ieee80211com *,
751 struct ieee80211_radiotap_header *th, int tlen,
752 uint32_t tx_radiotap,
753 struct ieee80211_radiotap_header *rh, int rlen,
754 uint32_t rx_radiotap);
755 void ieee80211_radiotap_attachv(struct ieee80211com *,
756 struct ieee80211_radiotap_header *th,
757 int tlen, int n_tx_v, uint32_t tx_radiotap,
758 struct ieee80211_radiotap_header *rh,
759 int rlen, int n_rx_v, uint32_t rx_radiotap);
760 void ieee80211_radiotap_detach(struct ieee80211com *);
761 void ieee80211_radiotap_vattach(struct ieee80211vap *);
762 void ieee80211_radiotap_vdetach(struct ieee80211vap *);
763 void ieee80211_radiotap_chan_change(struct ieee80211com *);
764 void ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
765 void ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
766 void ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
767
768 static __inline int
769 ieee80211_radiotap_active(const struct ieee80211com *ic)
770 {
771 return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
772 }
773
774 static __inline int
775 ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
776 {
777 return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
778 vap->iv_ic->ic_montaps != 0;
779 }
780
781 /*
782 * Enqueue a task on the state thread.
783 */
784 static __inline void
785 ieee80211_runtask(struct ieee80211com *ic, struct task *task)
786 {
787 taskqueue_enqueue(ic->ic_tq, task);
788 }
789
790 /*
791 * Wait for a queued task to complete.
792 */
793 static __inline void
794 ieee80211_draintask(struct ieee80211com *ic, struct task *task)
795 {
796 taskqueue_drain(ic->ic_tq, task);
797 }
798
799 /*
800 * Key update synchronization methods. XXX should not be visible.
801 */
802 static __inline void
803 ieee80211_key_update_begin(struct ieee80211vap *vap)
804 {
805 vap->iv_key_update_begin(vap);
806 }
807 static __inline void
808 ieee80211_key_update_end(struct ieee80211vap *vap)
809 {
810 vap->iv_key_update_end(vap);
811 }
812
813 /*
814 * XXX these need to be here for IEEE80211_F_DATAPAD
815 */
816
817 /*
818 * Return the space occupied by the 802.11 header and any
819 * padding required by the driver. This works for a
820 * management or data frame.
821 */
822 static __inline int
823 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
824 {
825 int size = ieee80211_hdrsize(data);
826 if (ic->ic_flags & IEEE80211_F_DATAPAD)
827 size = roundup(size, sizeof(uint32_t));
828 return size;
829 }
830
831 /*
832 * Like ieee80211_hdrspace, but handles any type of frame.
833 */
834 static __inline int
835 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
836 {
837 int size = ieee80211_anyhdrsize(data);
838 if (ic->ic_flags & IEEE80211_F_DATAPAD)
839 size = roundup(size, sizeof(uint32_t));
840 return size;
841 }
842
843 /*
844 * Notify a vap that beacon state has been updated.
845 */
846 static __inline void
847 ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
848 {
849 if (vap->iv_state == IEEE80211_S_RUN)
850 vap->iv_update_beacon(vap, what);
851 }
852
853 /*
854 * Calculate HT channel promotion flags for a channel.
855 * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
856 */
857 static __inline int
858 ieee80211_htchanflags(const struct ieee80211_channel *c)
859 {
860 return IEEE80211_IS_CHAN_HT40(c) ?
861 IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
862 IEEE80211_IS_CHAN_HT(c) ? IEEE80211_FHT_HT : 0;
863 }
864
865 /*
866 * Fetch the current TX power (cap) for the given node.
867 *
868 * This includes the node and ic/vap TX power limit as needed,
869 * but it doesn't take into account any per-rate limit.
870 */
871 static __inline uint16_t
872 ieee80211_get_node_txpower(struct ieee80211_node *ni)
873 {
874 struct ieee80211com *ic = ni->ni_ic;
875 uint16_t txpower;
876
877 txpower = ni->ni_txpower;
878 txpower = MIN(txpower, ic->ic_txpowlimit);
879 if (ic->ic_curchan != NULL) {
880 txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
881 txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
882 }
883
884 return (txpower);
885 }
886
887 /*
888 * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
889 *
890 * The intent is that any problem in the net80211 layer can be
891 * diagnosed by inspecting the statistics (dumped by the wlanstats
892 * program) and/or the msgs generated by net80211. Messages are
893 * broken into functional classes and can be controlled with the
894 * wlandebug program. Certain of these msg groups are for facilities
895 * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
896 */
897 #define IEEE80211_MSG_11N 0x80000000 /* 11n mode debug */
898 #define IEEE80211_MSG_DEBUG 0x40000000 /* IFF_DEBUG equivalent */
899 #define IEEE80211_MSG_DUMPPKTS 0x20000000 /* IFF_LINK2 equivalant */
900 #define IEEE80211_MSG_CRYPTO 0x10000000 /* crypto work */
901 #define IEEE80211_MSG_INPUT 0x08000000 /* input handling */
902 #define IEEE80211_MSG_XRATE 0x04000000 /* rate set handling */
903 #define IEEE80211_MSG_ELEMID 0x02000000 /* element id parsing */
904 #define IEEE80211_MSG_NODE 0x01000000 /* node handling */
905 #define IEEE80211_MSG_ASSOC 0x00800000 /* association handling */
906 #define IEEE80211_MSG_AUTH 0x00400000 /* authentication handling */
907 #define IEEE80211_MSG_SCAN 0x00200000 /* scanning */
908 #define IEEE80211_MSG_OUTPUT 0x00100000 /* output handling */
909 #define IEEE80211_MSG_STATE 0x00080000 /* state machine */
910 #define IEEE80211_MSG_POWER 0x00040000 /* power save handling */
911 #define IEEE80211_MSG_HWMP 0x00020000 /* hybrid mesh protocol */
912 #define IEEE80211_MSG_DOT1XSM 0x00010000 /* 802.1x state machine */
913 #define IEEE80211_MSG_RADIUS 0x00008000 /* 802.1x radius client */
914 #define IEEE80211_MSG_RADDUMP 0x00004000 /* dump 802.1x radius packets */
915 #define IEEE80211_MSG_MESH 0x00002000 /* mesh networking */
916 #define IEEE80211_MSG_WPA 0x00001000 /* WPA/RSN protocol */
917 #define IEEE80211_MSG_ACL 0x00000800 /* ACL handling */
918 #define IEEE80211_MSG_WME 0x00000400 /* WME protocol */
919 #define IEEE80211_MSG_SUPERG 0x00000200 /* Atheros SuperG protocol */
920 #define IEEE80211_MSG_DOTH 0x00000100 /* 802.11h support */
921 #define IEEE80211_MSG_INACT 0x00000080 /* inactivity handling */
922 #define IEEE80211_MSG_ROAM 0x00000040 /* sta-mode roaming */
923 #define IEEE80211_MSG_RATECTL 0x00000020 /* tx rate control */
924 #define IEEE80211_MSG_ACTION 0x00000010 /* action frame handling */
925 #define IEEE80211_MSG_WDS 0x00000008 /* WDS handling */
926 #define IEEE80211_MSG_IOCTL 0x00000004 /* ioctl handling */
927 #define IEEE80211_MSG_TDMA 0x00000002 /* TDMA handling */
928
929 #define IEEE80211_MSG_ANY 0xffffffff /* anything */
930
931 #define IEEE80211_MSG_BITS \
932 "\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
933 "\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
934 "\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
935 "\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
936
937 #ifdef IEEE80211_DEBUG
938 #define ieee80211_msg(_vap, _m) ((_vap)->iv_debug & (_m))
939 #define IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do { \
940 if (ieee80211_msg(_vap, _m)) \
941 ieee80211_note(_vap, _fmt, __VA_ARGS__); \
942 } while (0)
943 #define IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do { \
944 if (ieee80211_msg(_vap, _m)) \
945 ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
946 } while (0)
947 #define IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do { \
948 if (ieee80211_msg(_vap, _m)) \
949 ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__); \
950 } while (0)
951 #define IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do { \
952 if (ieee80211_msg(_vap, _m)) \
953 ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__); \
954 } while (0)
955 void ieee80211_note(const struct ieee80211vap *, const char *, ...);
956 void ieee80211_note_mac(const struct ieee80211vap *,
957 const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
958 void ieee80211_note_frame(const struct ieee80211vap *,
959 const struct ieee80211_frame *, const char *, ...);
960 #define ieee80211_msg_debug(_vap) \
961 ((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
962 #define ieee80211_msg_dumppkts(_vap) \
963 ((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
964 #define ieee80211_msg_input(_vap) \
965 ((_vap)->iv_debug & IEEE80211_MSG_INPUT)
966 #define ieee80211_msg_radius(_vap) \
967 ((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
968 #define ieee80211_msg_dumpradius(_vap) \
969 ((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
970 #define ieee80211_msg_dumpradkeys(_vap) \
971 ((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
972 #define ieee80211_msg_scan(_vap) \
973 ((_vap)->iv_debug & IEEE80211_MSG_SCAN)
974 #define ieee80211_msg_assoc(_vap) \
975 ((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
976
977 /*
978 * Emit a debug message about discarding a frame or information
979 * element. One format is for extracting the mac address from
980 * the frame header; the other is for when a header is not
981 * available or otherwise appropriate.
982 */
983 #define IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do { \
984 if ((_vap)->iv_debug & (_m)) \
985 ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
986 } while (0)
987 #define IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do { \
988 if ((_vap)->iv_debug & (_m)) \
989 ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
990 } while (0)
991 #define IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do { \
992 if ((_vap)->iv_debug & (_m)) \
993 ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
994 } while (0)
995
996 void ieee80211_discard_frame(const struct ieee80211vap *,
997 const struct ieee80211_frame *, const char *type, const char *fmt, ...);
998 void ieee80211_discard_ie(const struct ieee80211vap *,
999 const struct ieee80211_frame *, const char *type, const char *fmt, ...);
1000 void ieee80211_discard_mac(const struct ieee80211vap *,
1001 const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
1002 const char *fmt, ...);
1003 #else
1004 #define IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
1005 #define IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
1006 #define IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
1007 #define IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
1008 #define ieee80211_msg_dumppkts(_vap) 0
1009 #define ieee80211_msg(_vap, _m) 0
1010
1011 #define IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
1012 #define IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
1013 #define IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
1014 #endif
1015
1016 #endif /* _NET80211_IEEE80211_VAR_H_ */
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