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kernel - Fix rare race in mutex ownership transfer
[dragonfly.git] / sys / netproto / 802_11 / ieee80211_var.h
blobcfbcdc4122b24f03d25d125908733244455d902a
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 <netproto/802_11/ieee80211_netbsd.h>
37 #elif defined(__FreeBSD__)
38 #include <netproto/802_11/ieee80211_freebsd.h>
39 #elif defined(__DragonFly__)
40 #include <netproto/802_11/ieee80211_dragonfly.h>
41 #elif defined(__linux__)
42 #include <netproto/802_11/ieee80211_linux.h>
43 #else
44 #error "No support for your operating system!"
45 #endif
46
47 #include <netproto/802_11/_ieee80211.h>
48 #include <netproto/802_11/ieee80211.h>
49 #include <netproto/802_11/ieee80211_ageq.h>
50 #include <netproto/802_11/ieee80211_crypto.h>
51 #include <netproto/802_11/ieee80211_dfs.h>
52 #include <netproto/802_11/ieee80211_ioctl.h> /* for ieee80211_stats */
53 #include <netproto/802_11/ieee80211_phy.h>
54 #include <netproto/802_11/ieee80211_power.h>
55 #include <netproto/802_11/ieee80211_node.h>
56 #include <netproto/802_11/ieee80211_proto.h>
57 #include <netproto/802_11/ieee80211_radiotap.h>
58 #include <netproto/802_11/ieee80211_scan.h>
59
60 #define IEEE80211_TXPOWER_MAX 100 /* .5 dBm (XXX units?) */
61 #define IEEE80211_TXPOWER_MIN 0 /* kill radio */
62
63 #define IEEE80211_DTIM_DEFAULT 1 /* default DTIM period */
64 #define IEEE80211_BINTVAL_DEFAULT 100 /* default beacon interval (TU's) */
65
66 #define IEEE80211_BMISS_MAX 2 /* maximum consecutive bmiss allowed */
67 #define IEEE80211_HWBMISS_DEFAULT 7 /* h/w bmiss threshold (beacons) */
68
69 #define IEEE80211_BGSCAN_INTVAL_MIN 15 /* min bg scan intvl (secs) */
70 #define IEEE80211_BGSCAN_INTVAL_DEFAULT (5*60) /* default bg scan intvl */
71
72 #define IEEE80211_BGSCAN_IDLE_MIN 100 /* min idle time (ms) */
73 #define IEEE80211_BGSCAN_IDLE_DEFAULT 250 /* default idle time (ms) */
74
75 #define IEEE80211_SCAN_VALID_MIN 10 /* min scan valid time (secs) */
76 #define IEEE80211_SCAN_VALID_DEFAULT 60 /* default scan valid time */
77
78 #define IEEE80211_PS_SLEEP 0x1 /* STA is in power saving mode */
79 #define IEEE80211_PS_MAX_QUEUE 50 /* maximum saved packets */
80
81 #define IEEE80211_FIXED_RATE_NONE 0xff
82 #define IEEE80211_TXMAX_DEFAULT 6 /* default ucast max retries */
83
84 #define IEEE80211_RTS_DEFAULT IEEE80211_RTS_MAX
85 #define IEEE80211_FRAG_DEFAULT IEEE80211_FRAG_MAX
86
87 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
88 #define IEEE80211_TU_TO_MS(x) (((x) * 1024) / 1000)
89 /* XXX TODO: cap this at 1, in case hz is not 1000 */
90 #define IEEE80211_TU_TO_TICKS(x)(((uint64_t)(x) * 1024 * hz) / (1000 * 1000))
91
92 /*
93 * 802.11 control state is split into a common portion that maps
94 * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
95 * that are bound to an ieee80211com instance and share a single
96 * underlying device. Each VAP has a corresponding OS device
97 * entity through which traffic flows and that applications use
98 * for issuing ioctls, etc.
99 */
100
101 /*
102 * Data common to one or more virtual AP's. State shared by
103 * the underlying device and the net80211 layer is exposed here;
104 * e.g. device-specific callbacks.
105 */
106 struct ieee80211vap;
107 typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
108
109 struct ieee80211_appie {
110 uint16_t ie_len; /* size of ie_data */
111 uint8_t ie_data[]; /* user-specified IE's */
112 };
113
114 struct ieee80211_tdma_param;
115 struct ieee80211_rate_table;
116 struct ieee80211_tx_ampdu;
117 struct ieee80211_rx_ampdu;
118 struct ieee80211_superg;
119 struct ieee80211_frame;
120
121 struct ieee80211com {
122 void *ic_softc; /* driver softc */
123 const char *ic_name; /* usually device name */
124 ieee80211_com_lock_t ic_comlock; /* state update lock */
125 ieee80211_tx_lock_t ic_txlock; /* ic/vap TX lock */
126 LIST_ENTRY(ieee80211com) ic_next; /* on global list */
127 TAILQ_HEAD(, ieee80211vap) ic_vaps; /* list of vap instances */
128 int ic_headroom; /* driver tx headroom needs */
129 enum ieee80211_phytype ic_phytype; /* XXX wrong for multi-mode */
130 enum ieee80211_opmode ic_opmode; /* operation mode */
131 struct callout ic_inact; /* inactivity processing */
132 struct taskqueue *ic_tq; /* deferred state thread */
133 struct task ic_parent_task; /* deferred parent processing */
134 struct task ic_promisc_task;/* deferred promisc update */
135 struct task ic_mcast_task; /* deferred mcast update */
136 struct task ic_chan_task; /* deferred channel change */
137 struct task ic_bmiss_task; /* deferred beacon miss hndlr */
138 struct task ic_chw_task; /* deferred HT CHW update */
139 struct task ic_wme_task; /* deferred WME update */
140 struct task ic_restart_task; /* deferred device restart */
141
142 #if defined(__DragonFly__)
143 uint64_t ic_ierrors; /* input errors */
144 uint64_t ic_oerrors; /* output errors */
145 #else
146 counter_u64_t ic_ierrors; /* input errors */
147 counter_u64_t ic_oerrors; /* output errors */
148 #endif
149
150 uint32_t ic_flags; /* state flags */
151 uint32_t ic_flags_ext; /* extended state flags */
152 uint32_t ic_flags_ht; /* HT state flags */
153 uint32_t ic_flags_ven; /* vendor state flags */
154 uint32_t ic_caps; /* capabilities */
155 uint32_t ic_htcaps; /* HT capabilities */
156 uint32_t ic_htextcaps; /* HT extended capabilities */
157 uint32_t ic_cryptocaps; /* crypto capabilities */
158 /* set of mode capabilities */
159 uint8_t ic_modecaps[IEEE80211_MODE_BYTES];
160 uint8_t ic_promisc; /* vap's needing promisc mode */
161 uint8_t ic_allmulti; /* vap's needing all multicast*/
162 uint8_t ic_nrunning; /* vap's marked running */
163 uint8_t ic_curmode; /* current mode */
164 uint8_t ic_macaddr[IEEE80211_ADDR_LEN];
165 uint16_t ic_bintval; /* beacon interval */
166 uint16_t ic_lintval; /* listen interval */
167 uint16_t ic_holdover; /* PM hold over duration */
168 uint16_t ic_txpowlimit; /* global tx power limit */
169 struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
170
171 /*
172 * Channel state:
173 *
174 * ic_channels is the set of available channels for the device;
175 * it is setup by the driver
176 * ic_nchans is the number of valid entries in ic_channels
177 * ic_chan_avail is a bit vector of these channels used to check
178 * whether a channel is available w/o searching the channel table.
179 * ic_chan_active is a (potentially) constrained subset of
180 * ic_chan_avail that reflects any mode setting or user-specified
181 * limit on the set of channels to use/scan
182 * ic_curchan is the current channel the device is set to; it may
183 * be different from ic_bsschan when we are off-channel scanning
184 * or otherwise doing background work
185 * ic_bsschan is the channel selected for operation; it may
186 * be undefined (IEEE80211_CHAN_ANYC)
187 * ic_prevchan is a cached ``previous channel'' used to optimize
188 * lookups when switching back+forth between two channels
189 * (e.g. for dynamic turbo)
190 */
191 int ic_nchans; /* # entries in ic_channels */
192 struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
193 uint8_t ic_chan_avail[IEEE80211_CHAN_BYTES];
194 uint8_t ic_chan_active[IEEE80211_CHAN_BYTES];
195 uint8_t ic_chan_scan[IEEE80211_CHAN_BYTES];
196 struct ieee80211_channel *ic_curchan; /* current channel */
197 const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
198 struct ieee80211_channel *ic_bsschan; /* bss channel */
199 struct ieee80211_channel *ic_prevchan; /* previous channel */
200 struct ieee80211_regdomain ic_regdomain;/* regulatory data */
201 struct ieee80211_appie *ic_countryie; /* calculated country ie */
202 struct ieee80211_channel *ic_countryie_chan;
203
204 /* 802.11h/DFS state */
205 struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
206 short ic_csa_mode; /* mode for doing CSA */
207 short ic_csa_count; /* count for doing CSA */
208 struct ieee80211_dfs_state ic_dfs; /* DFS state */
209
210 struct ieee80211_scan_state *ic_scan; /* scan state */
211 struct ieee80211_scan_methods *ic_scan_methods; /* scan methods */
212 int ic_lastdata; /* time of last data frame */
213 int ic_lastscan; /* time last scan completed */
214
215 /* NB: this is the union of all vap stations/neighbors */
216 int ic_max_keyix; /* max h/w key index */
217 struct ieee80211_node_table ic_sta; /* stations/neighbors */
218 struct ieee80211_ageq ic_stageq; /* frame staging queue */
219 uint32_t ic_hash_key; /* random key for mac hash */
220
221 /* XXX multi-bss: split out common/vap parts */
222 struct ieee80211_wme_state ic_wme; /* WME/WMM state */
223
224 /* XXX multi-bss: can per-vap be done/make sense? */
225 enum ieee80211_protmode ic_protmode; /* 802.11g protection mode */
226 uint16_t ic_nonerpsta; /* # non-ERP stations */
227 uint16_t ic_longslotsta; /* # long slot time stations */
228 uint16_t ic_sta_assoc; /* stations associated */
229 uint16_t ic_ht_sta_assoc;/* HT stations associated */
230 uint16_t ic_ht40_sta_assoc;/* HT40 stations associated */
231 uint8_t ic_curhtprotmode;/* HTINFO bss state */
232 enum ieee80211_protmode ic_htprotmode; /* HT protection mode */
233 int ic_lastnonerp; /* last time non-ERP sta noted*/
234 int ic_lastnonht; /* last time non-HT sta noted */
235 uint8_t ic_rxstream; /* # RX streams */
236 uint8_t ic_txstream; /* # TX streams */
237
238 /* optional state for Atheros SuperG protocol extensions */
239 struct ieee80211_superg *ic_superg;
240
241 /* radiotap handling */
242 struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
243 void *ic_txchan; /* channel state in ic_th */
244 struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
245 void *ic_rxchan; /* channel state in ic_rh */
246 int ic_montaps; /* active monitor mode taps */
247
248 /* virtual ap create/delete */
249 struct ieee80211vap* (*ic_vap_create)(struct ieee80211com *,
250 const char [IFNAMSIZ], int,
251 enum ieee80211_opmode, int,
252 const uint8_t [IEEE80211_ADDR_LEN],
253 const uint8_t [IEEE80211_ADDR_LEN]);
254 void (*ic_vap_delete)(struct ieee80211vap *);
255 /* device specific ioctls */
256 int (*ic_ioctl)(struct ieee80211com *,
257 u_long, void *);
258 /* start/stop device */
259 void (*ic_parent)(struct ieee80211com *);
260 /* operating mode attachment */
261 ieee80211vap_attach ic_vattach[IEEE80211_OPMODE_MAX];
262 /* return hardware/radio capabilities */
263 void (*ic_getradiocaps)(struct ieee80211com *,
264 int, int *, struct ieee80211_channel []);
265 /* check and/or prepare regdomain state change */
266 int (*ic_setregdomain)(struct ieee80211com *,
267 struct ieee80211_regdomain *,
268 int, struct ieee80211_channel []);
269
270 int (*ic_set_quiet)(struct ieee80211_node *,
271 u_int8_t *quiet_elm);
272
273 /* regular transmit */
274 int (*ic_transmit)(struct ieee80211com *,
275 struct mbuf *);
276 /* send/recv 802.11 management frame */
277 int (*ic_send_mgmt)(struct ieee80211_node *,
278 int, int);
279 /* send raw 802.11 frame */
280 int (*ic_raw_xmit)(struct ieee80211_node *,
281 struct mbuf *,
282 const struct ieee80211_bpf_params *);
283 /* update device state for 802.11 slot time change */
284 void (*ic_updateslot)(struct ieee80211com *);
285 /* handle multicast state changes */
286 void (*ic_update_mcast)(struct ieee80211com *);
287 /* handle promiscuous mode changes */
288 void (*ic_update_promisc)(struct ieee80211com *);
289 /* new station association callback/notification */
290 void (*ic_newassoc)(struct ieee80211_node *, int);
291 /* TDMA update notification */
292 void (*ic_tdma_update)(struct ieee80211_node *,
293 const struct ieee80211_tdma_param *, int);
294 /* node state management */
295 struct ieee80211_node* (*ic_node_alloc)(struct ieee80211vap *,
296 const uint8_t [IEEE80211_ADDR_LEN]);
297 void (*ic_node_free)(struct ieee80211_node *);
298 void (*ic_node_cleanup)(struct ieee80211_node *);
299 void (*ic_node_age)(struct ieee80211_node *);
300 void (*ic_node_drain)(struct ieee80211_node *);
301 int8_t (*ic_node_getrssi)(const struct ieee80211_node*);
302 void (*ic_node_getsignal)(const struct ieee80211_node*,
303 int8_t *, int8_t *);
304 void (*ic_node_getmimoinfo)(
305 const struct ieee80211_node*,
306 struct ieee80211_mimo_info *);
307 /* scanning support */
308 void (*ic_scan_start)(struct ieee80211com *);
309 void (*ic_scan_end)(struct ieee80211com *);
310 void (*ic_set_channel)(struct ieee80211com *);
311 void (*ic_scan_curchan)(struct ieee80211_scan_state *,
312 unsigned long);
313 void (*ic_scan_mindwell)(struct ieee80211_scan_state *);
314
315 /*
316 * 802.11n ADDBA support. A simple/generic implementation
317 * of A-MPDU tx aggregation is provided; the driver may
318 * override these methods to provide their own support.
319 * A-MPDU rx re-ordering happens automatically if the
320 * driver passes out-of-order frames to ieee80211_input
321 * from an assocated HT station.
322 */
323 int (*ic_recv_action)(struct ieee80211_node *,
324 const struct ieee80211_frame *,
325 const uint8_t *frm, const uint8_t *efrm);
326 int (*ic_send_action)(struct ieee80211_node *,
327 int category, int action, void *);
328 /* check if A-MPDU should be enabled this station+ac */
329 int (*ic_ampdu_enable)(struct ieee80211_node *,
330 struct ieee80211_tx_ampdu *);
331 /* start/stop doing A-MPDU tx aggregation for a station */
332 int (*ic_addba_request)(struct ieee80211_node *,
333 struct ieee80211_tx_ampdu *,
334 int dialogtoken, int baparamset,
335 int batimeout);
336 int (*ic_addba_response)(struct ieee80211_node *,
337 struct ieee80211_tx_ampdu *,
338 int status, int baparamset, int batimeout);
339 void (*ic_addba_stop)(struct ieee80211_node *,
340 struct ieee80211_tx_ampdu *);
341 void (*ic_addba_response_timeout)(struct ieee80211_node *,
342 struct ieee80211_tx_ampdu *);
343 /* BAR response received */
344 void (*ic_bar_response)(struct ieee80211_node *,
345 struct ieee80211_tx_ampdu *, int status);
346 /* start/stop doing A-MPDU rx processing for a station */
347 int (*ic_ampdu_rx_start)(struct ieee80211_node *,
348 struct ieee80211_rx_ampdu *, int baparamset,
349 int batimeout, int baseqctl);
350 void (*ic_ampdu_rx_stop)(struct ieee80211_node *,
351 struct ieee80211_rx_ampdu *);
352
353 /* The channel width has changed (20<->2040) */
354 void (*ic_update_chw)(struct ieee80211com *);
355
356 uint64_t ic_spare[7];
357 };
358
359 struct ieee80211_aclator;
360 struct ieee80211_tdma_state;
361 struct ieee80211_mesh_state;
362 struct ieee80211_hwmp_state;
363
364 struct ieee80211vap {
365 struct ifmedia iv_media; /* interface media config */
366 struct ifnet *iv_ifp; /* associated device */
367 struct bpf_if *iv_rawbpf; /* packet filter structure */
368 struct sysctl_ctx_list *iv_sysctl; /* dynamic sysctl context */
369 struct sysctl_oid *iv_oid; /* net.wlan.X sysctl oid */
370
371 TAILQ_ENTRY(ieee80211vap) iv_next; /* list of vap instances */
372 struct ieee80211com *iv_ic; /* back ptr to common state */
373 /* MAC address: ifp or ic */
374 uint8_t iv_myaddr[IEEE80211_ADDR_LEN];
375 uint32_t iv_debug; /* debug msg flags */
376 struct ieee80211_stats iv_stats; /* statistics */
377
378 uint32_t iv_flags; /* state flags */
379 uint32_t iv_flags_ext; /* extended state flags */
380 uint32_t iv_flags_ht; /* HT state flags */
381 uint32_t iv_flags_ven; /* vendor state flags */
382 uint32_t iv_ifflags; /* ifnet flags */
383 uint32_t iv_caps; /* capabilities */
384 uint32_t iv_htcaps; /* HT capabilities */
385 uint32_t iv_htextcaps; /* HT extended capabilities */
386 enum ieee80211_opmode iv_opmode; /* operation mode */
387 enum ieee80211_state iv_state; /* state machine state */
388 enum ieee80211_state iv_nstate; /* pending state */
389 int iv_nstate_arg; /* pending state arg */
390 struct task iv_nstate_task; /* deferred state processing */
391 struct task iv_swbmiss_task;/* deferred iv_bmiss call */
392 struct callout iv_mgtsend; /* mgmt frame response timer */
393 /* inactivity timer settings */
394 int iv_inact_init; /* setting for new station */
395 int iv_inact_auth; /* auth but not assoc setting */
396 int iv_inact_run; /* authorized setting */
397 int iv_inact_probe; /* inactive probe time */
398
399 int iv_des_nssid; /* # desired ssids */
400 struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
401 uint8_t iv_des_bssid[IEEE80211_ADDR_LEN];
402 struct ieee80211_channel *iv_des_chan; /* desired channel */
403 uint16_t iv_des_mode; /* desired mode */
404 int iv_nicknamelen; /* XXX junk */
405 uint8_t iv_nickname[IEEE80211_NWID_LEN];
406 u_int iv_bgscanidle; /* bg scan idle threshold */
407 u_int iv_bgscanintvl; /* bg scan min interval */
408 u_int iv_scanvalid; /* scan cache valid threshold */
409 u_int iv_scanreq_duration;
410 u_int iv_scanreq_mindwell;
411 u_int iv_scanreq_maxdwell;
412 uint16_t iv_scanreq_flags;/* held scan request params */
413 uint8_t iv_scanreq_nssid;
414 struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
415 /* sta-mode roaming state */
416 enum ieee80211_roamingmode iv_roaming; /* roaming mode */
417 struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
418
419 uint8_t iv_bmissthreshold;
420 uint8_t iv_bmiss_count; /* current beacon miss count */
421 int iv_bmiss_max; /* max bmiss before scan */
422 uint16_t iv_swbmiss_count;/* beacons in last period */
423 uint16_t iv_swbmiss_period;/* s/w bmiss period */
424 struct callout iv_swbmiss; /* s/w beacon miss timer */
425
426 int iv_ampdu_rxmax; /* A-MPDU rx limit (bytes) */
427 int iv_ampdu_density;/* A-MPDU density */
428 int iv_ampdu_limit; /* A-MPDU tx limit (bytes) */
429 int iv_amsdu_limit; /* A-MSDU tx limit (bytes) */
430 u_int iv_ampdu_mintraffic[WME_NUM_AC];
431
432 struct ieee80211_beacon_offsets iv_bcn_off;
433 uint32_t *iv_aid_bitmap; /* association id map */
434 uint16_t iv_max_aid;
435 uint16_t iv_sta_assoc; /* stations associated */
436 uint16_t iv_ps_sta; /* stations in power save */
437 uint16_t iv_ps_pending; /* ps sta's w/ pending frames */
438 uint16_t iv_txseq; /* mcast xmit seq# space */
439 uint16_t iv_tim_len; /* ic_tim_bitmap size (bytes) */
440 uint8_t *iv_tim_bitmap; /* power-save stations w/ data*/
441 uint8_t iv_dtim_period; /* DTIM period */
442 uint8_t iv_dtim_count; /* DTIM count from last bcn */
443 /* set/unset aid pwrsav state */
444 uint8_t iv_quiet; /* Quiet Element */
445 uint8_t iv_quiet_count; /* constant count for Quiet Element */
446 uint8_t iv_quiet_count_value; /* variable count for Quiet Element */
447 uint8_t iv_quiet_period; /* period for Quiet Element */
448 uint16_t iv_quiet_duration; /* duration for Quiet Element */
449 uint16_t iv_quiet_offset; /* offset for Quiet Element */
450 int iv_csa_count; /* count for doing CSA */
451
452 struct ieee80211_node *iv_bss; /* information for this node */
453 struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
454 uint16_t iv_rtsthreshold;
455 uint16_t iv_fragthreshold;
456 int iv_inact_timer; /* inactivity timer wait */
457 /* application-specified IE's to attach to mgt frames */
458 struct ieee80211_appie *iv_appie_beacon;
459 struct ieee80211_appie *iv_appie_probereq;
460 struct ieee80211_appie *iv_appie_proberesp;
461 struct ieee80211_appie *iv_appie_assocreq;
462 struct ieee80211_appie *iv_appie_assocresp;
463 struct ieee80211_appie *iv_appie_wpa;
464 uint8_t *iv_wpa_ie;
465 uint8_t *iv_rsn_ie;
466 uint16_t iv_max_keyix; /* max h/w key index */
467 ieee80211_keyix iv_def_txkey; /* default/group tx key index */
468 struct ieee80211_key iv_nw_keys[IEEE80211_WEP_NKID];
469 int (*iv_key_alloc)(struct ieee80211vap *,
470 struct ieee80211_key *,
471 ieee80211_keyix *, ieee80211_keyix *);
472 int (*iv_key_delete)(struct ieee80211vap *,
473 const struct ieee80211_key *);
474 int (*iv_key_set)(struct ieee80211vap *,
475 const struct ieee80211_key *);
476 void (*iv_key_update_begin)(struct ieee80211vap *);
477 void (*iv_key_update_end)(struct ieee80211vap *);
478
479 const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
480 void *iv_ec; /* private auth state */
481
482 const struct ieee80211_aclator *iv_acl; /* acl glue */
483 void *iv_as; /* private aclator state */
484
485 const struct ieee80211_ratectl *iv_rate;
486 void *iv_rs; /* private ratectl state */
487
488 struct ieee80211_tdma_state *iv_tdma; /* tdma state */
489 struct ieee80211_mesh_state *iv_mesh; /* MBSS state */
490 struct ieee80211_hwmp_state *iv_hwmp; /* HWMP state */
491
492 /* operate-mode detach hook */
493 void (*iv_opdetach)(struct ieee80211vap *);
494 /* receive processing */
495 int (*iv_input)(struct ieee80211_node *,
496 struct mbuf *,
497 const struct ieee80211_rx_stats *,
498 int, int);
499 void (*iv_recv_mgmt)(struct ieee80211_node *,
500 struct mbuf *, int,
501 const struct ieee80211_rx_stats *,
502 int, int);
503 void (*iv_recv_ctl)(struct ieee80211_node *,
504 struct mbuf *, int);
505 void (*iv_deliver_data)(struct ieee80211vap *,
506 struct ieee80211_node *, struct mbuf *);
507 #if 0
508 /* send processing */
509 int (*iv_send_mgmt)(struct ieee80211_node *,
510 int, int);
511 #endif
512 /* beacon miss processing */
513 void (*iv_bmiss)(struct ieee80211vap *);
514 /* reset device state after 802.11 parameter/state change */
515 int (*iv_reset)(struct ieee80211vap *, u_long);
516 /* [schedule] beacon frame update */
517 void (*iv_update_beacon)(struct ieee80211vap *, int);
518 /* power save handling */
519 void (*iv_update_ps)(struct ieee80211vap *, int);
520 int (*iv_set_tim)(struct ieee80211_node *, int);
521 void (*iv_node_ps)(struct ieee80211_node *, int);
522 void (*iv_sta_ps)(struct ieee80211vap *, int);
523 void (*iv_recv_pspoll)(struct ieee80211_node *,
524 struct mbuf *);
525
526 /* state machine processing */
527 int (*iv_newstate)(struct ieee80211vap *,
528 enum ieee80211_state, int);
529 /* 802.3 output method for raw frame xmit */
530 #if defined(__DragonFly__)
531 int (*iv_output)(struct ifnet *, struct mbuf *,
532 struct sockaddr *, struct rtentry *);
533 #else
534 int (*iv_output)(struct ifnet *, struct mbuf *,
535 const struct sockaddr *, struct route *);
536 #endif
537 uint64_t iv_spare[6];
538 };
539 MALLOC_DECLARE(M_80211_VAP);
540
541 #define IEEE80211_ADDR_EQ(a1,a2) (memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
542 #define IEEE80211_ADDR_COPY(dst,src) memcpy(dst,src,IEEE80211_ADDR_LEN)
543
544 /* ic_flags/iv_flags */
545 #define IEEE80211_F_TURBOP 0x00000001 /* CONF: ATH Turbo enabled*/
546 #define IEEE80211_F_COMP 0x00000002 /* CONF: ATH comp enabled */
547 #define IEEE80211_F_FF 0x00000004 /* CONF: ATH FF enabled */
548 #define IEEE80211_F_BURST 0x00000008 /* CONF: bursting enabled */
549 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
550 #define IEEE80211_F_PRIVACY 0x00000010 /* CONF: privacy enabled */
551 #define IEEE80211_F_PUREG 0x00000020 /* CONF: 11g w/o 11b sta's */
552 #define IEEE80211_F_SCAN 0x00000080 /* STATUS: scanning */
553 #define IEEE80211_F_ASCAN 0x00000100 /* STATUS: active scan */
554 #define IEEE80211_F_SIBSS 0x00000200 /* STATUS: start IBSS */
555 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
556 #define IEEE80211_F_SHSLOT 0x00000400 /* STATUS: use short slot time*/
557 #define IEEE80211_F_PMGTON 0x00000800 /* CONF: Power mgmt enable */
558 #define IEEE80211_F_DESBSSID 0x00001000 /* CONF: des_bssid is set */
559 #define IEEE80211_F_WME 0x00002000 /* CONF: enable WME use */
560 #define IEEE80211_F_BGSCAN 0x00004000 /* CONF: bg scan enabled (???)*/
561 #define IEEE80211_F_SWRETRY 0x00008000 /* CONF: sw tx retry enabled */
562 #define IEEE80211_F_TXPOW_FIXED 0x00010000 /* TX Power: fixed rate */
563 #define IEEE80211_F_IBSSON 0x00020000 /* CONF: IBSS creation enable */
564 #define IEEE80211_F_SHPREAMBLE 0x00040000 /* STATUS: use short preamble */
565 #define IEEE80211_F_DATAPAD 0x00080000 /* CONF: do alignment pad */
566 #define IEEE80211_F_USEPROT 0x00100000 /* STATUS: protection enabled */
567 #define IEEE80211_F_USEBARKER 0x00200000 /* STATUS: use barker preamble*/
568 #define IEEE80211_F_CSAPENDING 0x00400000 /* STATUS: chan switch pending*/
569 #define IEEE80211_F_WPA1 0x00800000 /* CONF: WPA enabled */
570 #define IEEE80211_F_WPA2 0x01000000 /* CONF: WPA2 enabled */
571 #define IEEE80211_F_WPA 0x01800000 /* CONF: WPA/WPA2 enabled */
572 #define IEEE80211_F_DROPUNENC 0x02000000 /* CONF: drop unencrypted */
573 #define IEEE80211_F_COUNTERM 0x04000000 /* CONF: TKIP countermeasures */
574 #define IEEE80211_F_HIDESSID 0x08000000 /* CONF: hide SSID in beacon */
575 #define IEEE80211_F_NOBRIDGE 0x10000000 /* CONF: dis. internal bridge */
576 #define IEEE80211_F_PCF 0x20000000 /* CONF: PCF enabled */
577 #define IEEE80211_F_DOTH 0x40000000 /* CONF: 11h enabled */
578 #define IEEE80211_F_DWDS 0x80000000 /* CONF: Dynamic WDS enabled */
579
580 #define IEEE80211_F_BITS \
581 "\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN\11ASCAN\12SIBSS" \
582 "\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY\21TXPOW_FIXED" \
583 "\22IBSSON\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
584 "\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
585 "\37DOTH\40DWDS"
586
587 /* Atheros protocol-specific flags */
588 #define IEEE80211_F_ATHEROS \
589 (IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
590 /* Check if an Atheros capability was negotiated for use */
591 #define IEEE80211_ATH_CAP(vap, ni, bit) \
592 ((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
593
594 /* ic_flags_ext/iv_flags_ext */
595 #define IEEE80211_FEXT_INACT 0x00000002 /* CONF: sta inact handling */
596 #define IEEE80211_FEXT_SCANWAIT 0x00000004 /* STATUS: awaiting scan */
597 /* 0x00000006 reserved */
598 #define IEEE80211_FEXT_BGSCAN 0x00000008 /* STATUS: complete bgscan */
599 #define IEEE80211_FEXT_WPS 0x00000010 /* CONF: WPS enabled */
600 #define IEEE80211_FEXT_TSN 0x00000020 /* CONF: TSN enabled */
601 #define IEEE80211_FEXT_SCANREQ 0x00000040 /* STATUS: scan req params */
602 #define IEEE80211_FEXT_RESUME 0x00000080 /* STATUS: start on resume */
603 #define IEEE80211_FEXT_4ADDR 0x00000100 /* CONF: apply 4-addr encap */
604 #define IEEE80211_FEXT_NONERP_PR 0x00000200 /* STATUS: non-ERP sta present*/
605 #define IEEE80211_FEXT_SWBMISS 0x00000400 /* CONF: do bmiss in s/w */
606 #define IEEE80211_FEXT_DFS 0x00000800 /* CONF: DFS enabled */
607 #define IEEE80211_FEXT_DOTD 0x00001000 /* CONF: 11d enabled */
608 #define IEEE80211_FEXT_STATEWAIT 0x00002000 /* STATUS: awaiting state chg */
609 #define IEEE80211_FEXT_REINIT 0x00004000 /* STATUS: INIT state first */
610 #define IEEE80211_FEXT_BPF 0x00008000 /* STATUS: BPF tap present */
611 /* NB: immutable: should be set only when creating a vap */
612 #define IEEE80211_FEXT_WDSLEGACY 0x00010000 /* CONF: legacy WDS operation */
613 #define IEEE80211_FEXT_PROBECHAN 0x00020000 /* CONF: probe passive channel*/
614 #define IEEE80211_FEXT_UNIQMAC 0x00040000 /* CONF: user or computed mac */
615 #define IEEE80211_FEXT_SCAN_OFFLOAD 0x00080000 /* CONF: scan is fully offloaded */
616
617 #define IEEE80211_FEXT_BITS \
618 "\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
619 "\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
620 "\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC\24SCAN_OFFLOAD"
621
622 /* ic_flags_ht/iv_flags_ht */
623 #define IEEE80211_FHT_NONHT_PR 0x00000001 /* STATUS: non-HT sta present */
624 #define IEEE80211_FHT_GF 0x00040000 /* CONF: Greenfield enabled */
625 #define IEEE80211_FHT_HT 0x00080000 /* CONF: HT supported */
626 #define IEEE80211_FHT_AMPDU_TX 0x00100000 /* CONF: A-MPDU tx supported */
627 #define IEEE80211_FHT_AMPDU_RX 0x00200000 /* CONF: A-MPDU rx supported */
628 #define IEEE80211_FHT_AMSDU_TX 0x00400000 /* CONF: A-MSDU tx supported */
629 #define IEEE80211_FHT_AMSDU_RX 0x00800000 /* CONF: A-MSDU rx supported */
630 #define IEEE80211_FHT_USEHT40 0x01000000 /* CONF: 20/40 use enabled */
631 #define IEEE80211_FHT_PUREN 0x02000000 /* CONF: 11n w/o legacy sta's */
632 #define IEEE80211_FHT_SHORTGI20 0x04000000 /* CONF: short GI in HT20 */
633 #define IEEE80211_FHT_SHORTGI40 0x08000000 /* CONF: short GI in HT40 */
634 #define IEEE80211_FHT_HTCOMPAT 0x10000000 /* CONF: HT vendor OUI's */
635 #define IEEE80211_FHT_RIFS 0x20000000 /* CONF: RIFS enabled */
636 #define IEEE80211_FHT_STBC_TX 0x40000000 /* CONF: STBC tx enabled */
637 #define IEEE80211_FHT_STBC_RX 0x80000000 /* CONF: STBC rx enabled */
638
639 #define IEEE80211_FHT_BITS \
640 "\20\1NONHT_PR" \
641 "\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
642 "\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
643 "\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
644
645 #define IEEE80211_FVEN_BITS "\20"
646
647 /* ic_caps/iv_caps: device driver capabilities */
648 /* 0x2e available */
649 #define IEEE80211_C_STA 0x00000001 /* CAPABILITY: STA available */
650 #define IEEE80211_C_8023ENCAP 0x00000002 /* CAPABILITY: 802.3 encap */
651 #define IEEE80211_C_FF 0x00000040 /* CAPABILITY: ATH FF avail */
652 #define IEEE80211_C_TURBOP 0x00000080 /* CAPABILITY: ATH Turbo avail*/
653 #define IEEE80211_C_IBSS 0x00000100 /* CAPABILITY: IBSS available */
654 #define IEEE80211_C_PMGT 0x00000200 /* CAPABILITY: Power mgmt */
655 #define IEEE80211_C_HOSTAP 0x00000400 /* CAPABILITY: HOSTAP avail */
656 #define IEEE80211_C_AHDEMO 0x00000800 /* CAPABILITY: Old Adhoc Demo */
657 #define IEEE80211_C_SWRETRY 0x00001000 /* CAPABILITY: sw tx retry */
658 #define IEEE80211_C_TXPMGT 0x00002000 /* CAPABILITY: tx power mgmt */
659 #define IEEE80211_C_SHSLOT 0x00004000 /* CAPABILITY: short slottime */
660 #define IEEE80211_C_SHPREAMBLE 0x00008000 /* CAPABILITY: short preamble */
661 #define IEEE80211_C_MONITOR 0x00010000 /* CAPABILITY: monitor mode */
662 #define IEEE80211_C_DFS 0x00020000 /* CAPABILITY: DFS/radar avail*/
663 #define IEEE80211_C_MBSS 0x00040000 /* CAPABILITY: MBSS available */
664 #define IEEE80211_C_SWSLEEP 0x00080000 /* CAPABILITY: do sleep here */
665 #define IEEE80211_C_SWAMSDUTX 0x00100000 /* CAPABILITY: software A-MSDU TX */
666 /* 0x7c0000 available */
667 #define IEEE80211_C_WPA1 0x00800000 /* CAPABILITY: WPA1 avail */
668 #define IEEE80211_C_WPA2 0x01000000 /* CAPABILITY: WPA2 avail */
669 #define IEEE80211_C_WPA 0x01800000 /* CAPABILITY: WPA1+WPA2 avail*/
670 #define IEEE80211_C_BURST 0x02000000 /* CAPABILITY: frame bursting */
671 #define IEEE80211_C_WME 0x04000000 /* CAPABILITY: WME avail */
672 #define IEEE80211_C_WDS 0x08000000 /* CAPABILITY: 4-addr support */
673 /* 0x10000000 reserved */
674 #define IEEE80211_C_BGSCAN 0x20000000 /* CAPABILITY: bg scanning */
675 #define IEEE80211_C_TXFRAG 0x40000000 /* CAPABILITY: tx fragments */
676 #define IEEE80211_C_TDMA 0x80000000 /* CAPABILITY: TDMA avail */
677 /* XXX protection/barker? */
678
679 #define IEEE80211_C_OPMODE \
680 (IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \
681 IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \
682 IEEE80211_C_TDMA | IEEE80211_C_MBSS)
683
684 #define IEEE80211_C_BITS \
685 "\20\1STA\002803ENCAP\7FF\10TURBOP\11IBSS\12PMGT" \
686 "\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \
687 "\21MONITOR\22DFS\23MBSS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \
688 "\37TXFRAG\40TDMA"
689
690 /*
691 * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities
692 *
693 * NB: the low 16-bits are the 802.11 definitions, the upper
694 * 16-bits are used to define s/w/driver capabilities.
695 */
696 #define IEEE80211_HTC_AMPDU 0x00010000 /* CAPABILITY: A-MPDU tx */
697 #define IEEE80211_HTC_AMSDU 0x00020000 /* CAPABILITY: A-MSDU tx */
698 /* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
699 #define IEEE80211_HTC_HT 0x00040000 /* CAPABILITY: HT operation */
700 #define IEEE80211_HTC_SMPS 0x00080000 /* CAPABILITY: MIMO power save*/
701 #define IEEE80211_HTC_RIFS 0x00100000 /* CAPABILITY: RIFS support */
702 #define IEEE80211_HTC_RXUNEQUAL 0x00200000 /* CAPABILITY: RX unequal MCS */
703 #define IEEE80211_HTC_RXMCS32 0x00400000 /* CAPABILITY: MCS32 support */
704 #define IEEE80211_HTC_TXUNEQUAL 0x00800000 /* CAPABILITY: TX unequal MCS */
705 #define IEEE80211_HTC_TXMCS32 0x01000000 /* CAPABILITY: MCS32 suport */
706
707 #define IEEE80211_C_HTCAP_BITS \
708 "\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
709 "\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS"
710
711 int ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
712 void ieee80211_ifattach(struct ieee80211com *);
713 void ieee80211_ifdetach(struct ieee80211com *);
714 int ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
715 const char name[IFNAMSIZ], int unit,
716 enum ieee80211_opmode opmode, int flags,
717 const uint8_t bssid[IEEE80211_ADDR_LEN]);
718 int ieee80211_vap_attach(struct ieee80211vap *,
719 ifm_change_cb_t, ifm_stat_cb_t,
720 const uint8_t macaddr[IEEE80211_ADDR_LEN]);
721 void ieee80211_vap_detach(struct ieee80211vap *);
722 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
723 const struct ieee80211_channel *);
724 void ieee80211_announce(struct ieee80211com *);
725 void ieee80211_announce_channels(struct ieee80211com *);
726 void ieee80211_drain(struct ieee80211com *);
727 void ieee80211_chan_init(struct ieee80211com *);
728 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
729 struct ieee80211com *ieee80211_find_com(const char *name);
730 int ieee80211_media_change(struct ifnet *);
731 void ieee80211_media_status(struct ifnet *, struct ifmediareq *);
732 #if defined(__DragonFly__)
733 int ieee80211_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
734 #else
735 int ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
736 #endif
737 int ieee80211_rate2media(struct ieee80211com *, int,
738 enum ieee80211_phymode);
739 int ieee80211_media2rate(int);
740 int ieee80211_mhz2ieee(u_int, u_int);
741 int ieee80211_chan2ieee(struct ieee80211com *,
742 const struct ieee80211_channel *);
743 u_int ieee80211_ieee2mhz(u_int, u_int);
744 int ieee80211_add_channel(struct ieee80211_channel[], int, int *,
745 uint8_t, uint16_t, int8_t, uint32_t, const uint8_t[]);
746 int ieee80211_add_channel_ht40(struct ieee80211_channel[], int, int *,
747 uint8_t, int8_t, uint32_t);
748 int ieee80211_add_channel_list_2ghz(struct ieee80211_channel[], int, int *,
749 const uint8_t[], int, const uint8_t[], int);
750 int ieee80211_add_channel_list_5ghz(struct ieee80211_channel[], int, int *,
751 const uint8_t[], int, const uint8_t[], int);
752 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
753 int freq, int flags);
754 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
755 int ieee, int flags);
756 struct ieee80211_channel *ieee80211_lookup_channel_rxstatus(struct ieee80211vap *,
757 const struct ieee80211_rx_stats *);
758 int ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
759 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
760 uint32_t ieee80211_mac_hash(const struct ieee80211com *,
761 const uint8_t addr[IEEE80211_ADDR_LEN]);
762 char ieee80211_channel_type_char(const struct ieee80211_channel *c);
763
764 void ieee80211_radiotap_attach(struct ieee80211com *,
765 struct ieee80211_radiotap_header *th, int tlen,
766 uint32_t tx_radiotap,
767 struct ieee80211_radiotap_header *rh, int rlen,
768 uint32_t rx_radiotap);
769 void ieee80211_radiotap_attachv(struct ieee80211com *,
770 struct ieee80211_radiotap_header *th,
771 int tlen, int n_tx_v, uint32_t tx_radiotap,
772 struct ieee80211_radiotap_header *rh,
773 int rlen, int n_rx_v, uint32_t rx_radiotap);
774 void ieee80211_radiotap_detach(struct ieee80211com *);
775 void ieee80211_radiotap_vattach(struct ieee80211vap *);
776 void ieee80211_radiotap_vdetach(struct ieee80211vap *);
777 void ieee80211_radiotap_chan_change(struct ieee80211com *);
778 void ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
779 void ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
780 void ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
781
782 static __inline int
783 ieee80211_radiotap_active(const struct ieee80211com *ic)
784 {
785 return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
786 }
787
788 static __inline int
789 ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
790 {
791 return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
792 vap->iv_ic->ic_montaps != 0;
793 }
794
795 /*
796 * Enqueue a task on the state thread.
797 */
798 static __inline void
799 ieee80211_runtask(struct ieee80211com *ic, struct task *task)
800 {
801 taskqueue_enqueue(ic->ic_tq, task);
802 }
803
804 /*
805 * Wait for a queued task to complete.
806 */
807 static __inline void
808 ieee80211_draintask(struct ieee80211com *ic, struct task *task)
809 {
810 taskqueue_drain(ic->ic_tq, task);
811 }
812
813 /*
814 * Key update synchronization methods. XXX should not be visible.
815 */
816 static __inline void
817 ieee80211_key_update_begin(struct ieee80211vap *vap)
818 {
819 vap->iv_key_update_begin(vap);
820 }
821 static __inline void
822 ieee80211_key_update_end(struct ieee80211vap *vap)
823 {
824 vap->iv_key_update_end(vap);
825 }
826
827 /*
828 * XXX these need to be here for IEEE80211_F_DATAPAD
829 */
830
831 /*
832 * Return the space occupied by the 802.11 header and any
833 * padding required by the driver. This works for a
834 * management or data frame.
835 */
836 static __inline int
837 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
838 {
839 int size = ieee80211_hdrsize(data);
840 if (ic->ic_flags & IEEE80211_F_DATAPAD)
841 size = roundup(size, sizeof(uint32_t));
842 return size;
843 }
844
845 /*
846 * Like ieee80211_hdrspace, but handles any type of frame.
847 */
848 static __inline int
849 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
850 {
851 int size = ieee80211_anyhdrsize(data);
852 if (ic->ic_flags & IEEE80211_F_DATAPAD)
853 size = roundup(size, sizeof(uint32_t));
854 return size;
855 }
856
857 /*
858 * Notify a vap that beacon state has been updated.
859 */
860 static __inline void
861 ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
862 {
863 if (vap->iv_state == IEEE80211_S_RUN)
864 vap->iv_update_beacon(vap, what);
865 }
866
867 /*
868 * Calculate HT channel promotion flags for a channel.
869 * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
870 */
871 static __inline int
872 ieee80211_htchanflags(const struct ieee80211_channel *c)
873 {
874 return IEEE80211_IS_CHAN_HT40(c) ?
875 IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
876 IEEE80211_IS_CHAN_HT(c) ? IEEE80211_FHT_HT : 0;
877 }
878
879 /*
880 * Fetch the current TX power (cap) for the given node.
881 *
882 * This includes the node and ic/vap TX power limit as needed,
883 * but it doesn't take into account any per-rate limit.
884 */
885 static __inline uint16_t
886 ieee80211_get_node_txpower(struct ieee80211_node *ni)
887 {
888 struct ieee80211com *ic = ni->ni_ic;
889 uint16_t txpower;
890
891 txpower = ni->ni_txpower;
892 txpower = MIN(txpower, ic->ic_txpowlimit);
893 if (ic->ic_curchan != NULL) {
894 txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
895 txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
896 }
897
898 return (txpower);
899 }
900
901 /*
902 * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
903 *
904 * The intent is that any problem in the net80211 layer can be
905 * diagnosed by inspecting the statistics (dumped by the wlanstats
906 * program) and/or the msgs generated by net80211. Messages are
907 * broken into functional classes and can be controlled with the
908 * wlandebug program. Certain of these msg groups are for facilities
909 * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
910 */
911 #define IEEE80211_MSG_11N 0x80000000 /* 11n mode debug */
912 #define IEEE80211_MSG_DEBUG 0x40000000 /* IFF_DEBUG equivalent */
913 #define IEEE80211_MSG_DUMPPKTS 0x20000000 /* IFF_LINK2 equivalant */
914 #define IEEE80211_MSG_CRYPTO 0x10000000 /* crypto work */
915 #define IEEE80211_MSG_INPUT 0x08000000 /* input handling */
916 #define IEEE80211_MSG_XRATE 0x04000000 /* rate set handling */
917 #define IEEE80211_MSG_ELEMID 0x02000000 /* element id parsing */
918 #define IEEE80211_MSG_NODE 0x01000000 /* node handling */
919 #define IEEE80211_MSG_ASSOC 0x00800000 /* association handling */
920 #define IEEE80211_MSG_AUTH 0x00400000 /* authentication handling */
921 #define IEEE80211_MSG_SCAN 0x00200000 /* scanning */
922 #define IEEE80211_MSG_OUTPUT 0x00100000 /* output handling */
923 #define IEEE80211_MSG_STATE 0x00080000 /* state machine */
924 #define IEEE80211_MSG_POWER 0x00040000 /* power save handling */
925 #define IEEE80211_MSG_HWMP 0x00020000 /* hybrid mesh protocol */
926 #define IEEE80211_MSG_DOT1XSM 0x00010000 /* 802.1x state machine */
927 #define IEEE80211_MSG_RADIUS 0x00008000 /* 802.1x radius client */
928 #define IEEE80211_MSG_RADDUMP 0x00004000 /* dump 802.1x radius packets */
929 #define IEEE80211_MSG_MESH 0x00002000 /* mesh networking */
930 #define IEEE80211_MSG_WPA 0x00001000 /* WPA/RSN protocol */
931 #define IEEE80211_MSG_ACL 0x00000800 /* ACL handling */
932 #define IEEE80211_MSG_WME 0x00000400 /* WME protocol */
933 #define IEEE80211_MSG_SUPERG 0x00000200 /* Atheros SuperG protocol */
934 #define IEEE80211_MSG_DOTH 0x00000100 /* 802.11h support */
935 #define IEEE80211_MSG_INACT 0x00000080 /* inactivity handling */
936 #define IEEE80211_MSG_ROAM 0x00000040 /* sta-mode roaming */
937 #define IEEE80211_MSG_RATECTL 0x00000020 /* tx rate control */
938 #define IEEE80211_MSG_ACTION 0x00000010 /* action frame handling */
939 #define IEEE80211_MSG_WDS 0x00000008 /* WDS handling */
940 #define IEEE80211_MSG_IOCTL 0x00000004 /* ioctl handling */
941 #define IEEE80211_MSG_TDMA 0x00000002 /* TDMA handling */
942
943 #define IEEE80211_MSG_ANY 0xffffffff /* anything */
944
945 #define IEEE80211_MSG_BITS \
946 "\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
947 "\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
948 "\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
949 "\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
950
951 #ifdef IEEE80211_DEBUG
952 #define ieee80211_msg(_vap, _m) ((_vap)->iv_debug & (_m))
953 #define IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do { \
954 if (ieee80211_msg(_vap, _m)) \
955 ieee80211_note(_vap, _fmt, __VA_ARGS__); \
956 } while (0)
957 #define IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do { \
958 if (ieee80211_msg(_vap, _m)) \
959 ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
960 } while (0)
961 #define IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do { \
962 if (ieee80211_msg(_vap, _m)) \
963 ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__); \
964 } while (0)
965 #define IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do { \
966 if (ieee80211_msg(_vap, _m)) \
967 ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__); \
968 } while (0)
969 void ieee80211_note(const struct ieee80211vap *, const char *, ...)
970 __printflike(2, 3);
971 void ieee80211_note_mac(const struct ieee80211vap *,
972 const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...)
973 __printflike(3, 4);
974 void ieee80211_note_frame(const struct ieee80211vap *,
975 const struct ieee80211_frame *, const char *, ...)
976 __printflike(3, 4);
977 #define ieee80211_msg_debug(_vap) \
978 ((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
979 #define ieee80211_msg_dumppkts(_vap) \
980 ((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
981 #define ieee80211_msg_input(_vap) \
982 ((_vap)->iv_debug & IEEE80211_MSG_INPUT)
983 #define ieee80211_msg_radius(_vap) \
984 ((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
985 #define ieee80211_msg_dumpradius(_vap) \
986 ((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
987 #define ieee80211_msg_dumpradkeys(_vap) \
988 ((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
989 #define ieee80211_msg_scan(_vap) \
990 ((_vap)->iv_debug & IEEE80211_MSG_SCAN)
991 #define ieee80211_msg_assoc(_vap) \
992 ((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
993
994 /*
995 * Emit a debug message about discarding a frame or information
996 * element. One format is for extracting the mac address from
997 * the frame header; the other is for when a header is not
998 * available or otherwise appropriate.
999 */
1000 #define IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do { \
1001 if ((_vap)->iv_debug & (_m)) \
1002 ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
1003 } while (0)
1004 #define IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do { \
1005 if ((_vap)->iv_debug & (_m)) \
1006 ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
1007 } while (0)
1008 #define IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do { \
1009 if ((_vap)->iv_debug & (_m)) \
1010 ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
1011 } while (0)
1012
1013 void ieee80211_discard_frame(const struct ieee80211vap *,
1014 const struct ieee80211_frame *, const char *type, const char *fmt, ...)
1015 __printflike(4, 5);
1016 void ieee80211_discard_ie(const struct ieee80211vap *,
1017 const struct ieee80211_frame *, const char *type, const char *fmt, ...)
1018 __printflike(4, 5);
1019 void ieee80211_discard_mac(const struct ieee80211vap *,
1020 const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
1021 const char *fmt, ...)
1022 __printflike(4, 5);
1023 #else
1024 #define IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do { } while (0)
1025 #define IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do { } while (0)
1026 #define IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do { } while (0)
1027 #define IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do { } while (0)
1028 #define ieee80211_msg_dumppkts(_vap) 0
1029 #define ieee80211_msg(_vap, _m) 0
1030
1031 #define IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do { } while (0)
1032 #define IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do { } while (0)
1033 #define IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do { } while (0)
1034 #endif
1035
1036 #endif /* _NET80211_IEEE80211_VAR_H_ */
DragonFly BSD