1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2001 Atsushi Onoe
5 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: releng/12.0/sys/net80211/ieee80211_var.h 326272 2017-11-27 15:23:17Z pfg $
29 */
30#ifndef _NET80211_IEEE80211_VAR_H_
31#define _NET80211_IEEE80211_VAR_H_
32
33/*
34 * Definitions for IEEE 802.11 drivers.
35 */
36/* NB: portability glue must go first */
37#if defined(__NetBSD__)
38#include <net80211/ieee80211_netbsd.h>
39#elif defined(__FreeBSD__)
40#include <net80211/ieee80211_freebsd.h>
41#elif defined(__linux__)
42#include <net80211/ieee80211_linux.h>
43#elif defined(__HAIKU__)
44#include <net80211/ieee80211_haiku.h>
45#else
46#error	"No support for your operating system!"
47#endif
48
49#include <net80211/_ieee80211.h>
50#include <net80211/ieee80211.h>
51#include <net80211/ieee80211_ageq.h>
52#include <net80211/ieee80211_crypto.h>
53#include <net80211/ieee80211_dfs.h>
54#include <net80211/ieee80211_ioctl.h>		/* for ieee80211_stats */
55#include <net80211/ieee80211_phy.h>
56#include <net80211/ieee80211_power.h>
57#include <net80211/ieee80211_node.h>
58#include <net80211/ieee80211_proto.h>
59#include <net80211/ieee80211_radiotap.h>
60#include <net80211/ieee80211_scan.h>
61
62#define	IEEE80211_TXPOWER_MAX	100	/* .5 dBm (XXX units?) */
63#define	IEEE80211_TXPOWER_MIN	0	/* kill radio */
64
65#define	IEEE80211_DTIM_DEFAULT	1	/* default DTIM period */
66#define	IEEE80211_BINTVAL_DEFAULT 100	/* default beacon interval (TU's) */
67
68#define	IEEE80211_BMISS_MAX	2	/* maximum consecutive bmiss allowed */
69#define	IEEE80211_HWBMISS_DEFAULT 7	/* h/w bmiss threshold (beacons) */
70
71#define	IEEE80211_BGSCAN_INTVAL_MIN	15	/* min bg scan intvl (secs) */
72#define	IEEE80211_BGSCAN_INTVAL_DEFAULT	(5*60)	/* default bg scan intvl */
73
74#define	IEEE80211_BGSCAN_IDLE_MIN	100	/* min idle time (ms) */
75#define	IEEE80211_BGSCAN_IDLE_DEFAULT	250	/* default idle time (ms) */
76
77#define	IEEE80211_SCAN_VALID_MIN	10	/* min scan valid time (secs) */
78#define	IEEE80211_SCAN_VALID_DEFAULT	60	/* default scan valid time */
79
80#define	IEEE80211_PS_SLEEP	0x1	/* STA is in power saving mode */
81#define	IEEE80211_PS_MAX_QUEUE	50	/* maximum saved packets */
82
83#define	IEEE80211_FIXED_RATE_NONE	0xff
84#define	IEEE80211_TXMAX_DEFAULT		6	/* default ucast max retries */
85
86#define	IEEE80211_RTS_DEFAULT		IEEE80211_RTS_MAX
87#define	IEEE80211_FRAG_DEFAULT		IEEE80211_FRAG_MAX
88
89#define	IEEE80211_MS_TO_TU(x)	(((x) * 1000) / 1024)
90#define	IEEE80211_TU_TO_MS(x)	(((x) * 1024) / 1000)
91/* XXX TODO: cap this at 1, in case hz is not 1000 */
92#define	IEEE80211_TU_TO_TICKS(x)(((uint64_t)(x) * 1024 * hz) / (1000 * 1000))
93
94/*
95 * Technically, vhtflags may be 0 /and/ 11ac is enabled.
96 * At some point ic should just grow a flag somewhere that
97 * says that VHT is supported - and then this macro can be
98 * changed.
99 */
100#define	IEEE80211_CONF_VHT(ic)			\
101	    ((ic)->ic_flags_ext & IEEE80211_FEXT_VHT)
102
103#define	IEEE80211_CONF_SEQNO_OFFLOAD(ic)	\
104	    ((ic)->ic_flags_ext & IEEE80211_FEXT_SEQNO_OFFLOAD)
105#define	IEEE80211_CONF_FRAG_OFFLOAD(ic)	\
106	    ((ic)->ic_flags_ext & IEEE80211_FEXT_FRAG_OFFLOAD)
107
108/*
109 * 802.11 control state is split into a common portion that maps
110 * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
111 * that are bound to an ieee80211com instance and share a single
112 * underlying device.  Each VAP has a corresponding OS device
113 * entity through which traffic flows and that applications use
114 * for issuing ioctls, etc.
115 */
116
117/*
118 * Data common to one or more virtual AP's.  State shared by
119 * the underlying device and the net80211 layer is exposed here;
120 * e.g. device-specific callbacks.
121 */
122struct ieee80211vap;
123typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
124
125struct ieee80211_appie {
126	uint16_t		ie_len;		/* size of ie_data */
127	uint8_t			ie_data[0];	/* user-specified IE's */
128};
129
130struct ieee80211_tdma_param;
131struct ieee80211_rate_table;
132struct ieee80211_tx_ampdu;
133struct ieee80211_rx_ampdu;
134struct ieee80211_superg;
135struct ieee80211_frame;
136
137struct net80211dump_methods;
138
139struct ieee80211com {
140	void			*ic_softc;	/* driver softc */
141	const char		*ic_name;	/* usually device name */
142	ieee80211_com_lock_t	ic_comlock;	/* state update lock */
143	ieee80211_tx_lock_t	ic_txlock;	/* ic/vap TX lock */
144	ieee80211_ff_lock_t	ic_fflock;	/* stageq/ni_tx_superg lock */
145	LIST_ENTRY(ieee80211com)   ic_next;	/* on global list */
146	TAILQ_HEAD(, ieee80211vap) ic_vaps;	/* list of vap instances */
147	int			ic_headroom;	/* driver tx headroom needs */
148	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
149	enum ieee80211_opmode	ic_opmode;	/* operation mode */
150	struct callout		ic_inact;	/* inactivity processing */
151	struct taskqueue	*ic_tq;		/* deferred state thread */
152	struct task		ic_parent_task;	/* deferred parent processing */
153	struct task		ic_promisc_task;/* deferred promisc update */
154	struct task		ic_mcast_task;	/* deferred mcast update */
155	struct task		ic_chan_task;	/* deferred channel change */
156	struct task		ic_bmiss_task;	/* deferred beacon miss hndlr */
157	struct task		ic_chw_task;	/* deferred HT CHW update */
158	struct task		ic_restart_task; /* deferred device restart */
159
160	counter_u64_t		ic_ierrors;	/* input errors */
161	counter_u64_t		ic_oerrors;	/* output errors */
162
163	uint32_t		ic_flags;	/* state flags */
164	uint32_t		ic_flags_ext;	/* extended state flags */
165	uint32_t		ic_flags_ht;	/* HT state flags */
166	uint32_t		ic_flags_ven;	/* vendor state flags */
167	uint32_t		ic_caps;	/* capabilities */
168	uint32_t		ic_htcaps;	/* HT capabilities */
169	uint32_t		ic_htextcaps;	/* HT extended capabilities */
170	uint32_t		ic_cryptocaps;	/* crypto capabilities */
171						/* set of mode capabilities */
172	uint8_t			ic_modecaps[IEEE80211_MODE_BYTES];
173	uint8_t			ic_promisc;	/* vap's needing promisc mode */
174	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
175	uint8_t			ic_nrunning;	/* vap's marked running */
176	uint8_t			ic_curmode;	/* current mode */
177	uint8_t			ic_macaddr[IEEE80211_ADDR_LEN];
178	uint16_t		ic_bintval;	/* beacon interval */
179	uint16_t		ic_lintval;	/* listen interval */
180	uint16_t		ic_holdover;	/* PM hold over duration */
181	uint16_t		ic_txpowlimit;	/* global tx power limit */
182	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
183	struct ieee80211_htrateset ic_sup_htrates;
184
185	/*
186	 * Channel state:
187	 *
188	 * ic_channels is the set of available channels for the device;
189	 *    it is setup by the driver
190	 * ic_nchans is the number of valid entries in ic_channels
191	 * ic_chan_avail is a bit vector of these channels used to check
192	 *    whether a channel is available w/o searching the channel table.
193	 * ic_chan_active is a (potentially) constrained subset of
194	 *    ic_chan_avail that reflects any mode setting or user-specified
195	 *    limit on the set of channels to use/scan
196	 * ic_curchan is the current channel the device is set to; it may
197	 *    be different from ic_bsschan when we are off-channel scanning
198	 *    or otherwise doing background work
199	 * ic_bsschan is the channel selected for operation; it may
200	 *    be undefined (IEEE80211_CHAN_ANYC)
201	 * ic_prevchan is a cached ``previous channel'' used to optimize
202	 *    lookups when switching back+forth between two channels
203	 *    (e.g. for dynamic turbo)
204	 */
205	int			ic_nchans;	/* # entries in ic_channels */
206	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
207	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
208	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
209	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
210	struct ieee80211_channel *ic_curchan;	/* current channel */
211	const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
212	struct ieee80211_channel *ic_bsschan;	/* bss channel */
213	struct ieee80211_channel *ic_prevchan;	/* previous channel */
214	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
215	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
216	struct ieee80211_channel *ic_countryie_chan;
217
218	/* 802.11h/DFS state */
219	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
220	short			ic_csa_mode;	/* mode for doing CSA */
221	short			ic_csa_count;	/* count for doing CSA */
222	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
223
224	struct ieee80211_scan_state *ic_scan;	/* scan state */
225	struct ieee80211_scan_methods *ic_scan_methods;	/* scan methods */
226	int			ic_lastdata;	/* time of last data frame */
227	int			ic_lastscan;	/* time last scan completed */
228
229	/* NB: this is the union of all vap stations/neighbors */
230	int			ic_max_keyix;	/* max h/w key index */
231	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
232	struct ieee80211_ageq	ic_stageq;	/* frame staging queue */
233	uint32_t		ic_hash_key;	/* random key for mac hash */
234
235	/* XXX multi-bss: split out common/vap parts */
236	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
237
238	/* Protection mode for net80211 driven channel NICs */
239	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
240	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
241	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
242
243	uint8_t			ic_rxstream;    /* # RX streams */
244	uint8_t			ic_txstream;    /* # TX streams */
245
246	/* VHT information */
247	uint32_t		ic_vhtcaps;	/* VHT capabilities */
248	uint32_t		ic_vhtextcaps;	/* VHT extended capabilities (TODO) */
249	struct ieee80211_vht_mcs_info	ic_vht_mcsinfo; /* Support TX/RX VHT MCS */
250	uint32_t		ic_flags_vht;	/* VHT state flags */
251	uint32_t		ic_vht_spare[3];
252
253	/* optional state for Atheros SuperG protocol extensions */
254	struct ieee80211_superg	*ic_superg;
255
256	/* radiotap handling */
257	struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
258	void			*ic_txchan;	/* channel state in ic_th */
259	struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
260	void			*ic_rxchan;	/* channel state in ic_rh */
261	int			ic_montaps;	/* active monitor mode taps */
262
263	/* virtual ap create/delete */
264	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
265				    const char [IFNAMSIZ], int,
266				    enum ieee80211_opmode, int,
267				    const uint8_t [IEEE80211_ADDR_LEN],
268				    const uint8_t [IEEE80211_ADDR_LEN]);
269	void			(*ic_vap_delete)(struct ieee80211vap *);
270	/* device specific ioctls */
271	int			(*ic_ioctl)(struct ieee80211com *,
272				    u_long, void *);
273	/* start/stop device */
274	void			(*ic_parent)(struct ieee80211com *);
275	/* operating mode attachment */
276	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
277	/* return hardware/radio capabilities */
278	void			(*ic_getradiocaps)(struct ieee80211com *,
279				    int, int *, struct ieee80211_channel []);
280	/* check and/or prepare regdomain state change */
281	int			(*ic_setregdomain)(struct ieee80211com *,
282				    struct ieee80211_regdomain *,
283				    int, struct ieee80211_channel []);
284
285	int			(*ic_set_quiet)(struct ieee80211_node *,
286				    u_int8_t *quiet_elm);
287
288	/* regular transmit */
289	int			(*ic_transmit)(struct ieee80211com *,
290				    struct mbuf *);
291	/* send/recv 802.11 management frame */
292	int			(*ic_send_mgmt)(struct ieee80211_node *,
293				     int, int);
294	/* send raw 802.11 frame */
295	int			(*ic_raw_xmit)(struct ieee80211_node *,
296				    struct mbuf *,
297				    const struct ieee80211_bpf_params *);
298	/* update device state for 802.11 slot time change */
299	void			(*ic_updateslot)(struct ieee80211com *);
300	/* handle multicast state changes */
301	void			(*ic_update_mcast)(struct ieee80211com *);
302	/* handle promiscuous mode changes */
303	void			(*ic_update_promisc)(struct ieee80211com *);
304	/* new station association callback/notification */
305	void			(*ic_newassoc)(struct ieee80211_node *, int);
306	/* TDMA update notification */
307	void			(*ic_tdma_update)(struct ieee80211_node *,
308				    const struct ieee80211_tdma_param *, int);
309
310	/* Node state management */
311
312	/* Allocate a new node */
313	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
314				    const uint8_t [IEEE80211_ADDR_LEN]);
315
316	/* Driver node initialisation after net80211 setup */
317	int			(*ic_node_init)(struct ieee80211_node *);
318
319	/* Driver node deallocation */
320	void			(*ic_node_free)(struct ieee80211_node *);
321
322	/* Driver node state cleanup before deallocation */
323	void			(*ic_node_cleanup)(struct ieee80211_node *);
324
325	void			(*ic_node_age)(struct ieee80211_node *);
326	void			(*ic_node_drain)(struct ieee80211_node *);
327	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
328	void			(*ic_node_getsignal)(const struct ieee80211_node*,
329				    int8_t *, int8_t *);
330	void			(*ic_node_getmimoinfo)(
331				    const struct ieee80211_node*,
332				    struct ieee80211_mimo_info *);
333	/* scanning support */
334	void			(*ic_scan_start)(struct ieee80211com *);
335	void			(*ic_scan_end)(struct ieee80211com *);
336	void			(*ic_set_channel)(struct ieee80211com *);
337	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
338				    unsigned long);
339	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
340
341	/*
342	 * 802.11n ADDBA support.  A simple/generic implementation
343	 * of A-MPDU tx aggregation is provided; the driver may
344	 * override these methods to provide their own support.
345	 * A-MPDU rx re-ordering happens automatically if the
346	 * driver passes out-of-order frames to ieee80211_input
347	 * from an assocated HT station.
348	 */
349	int			(*ic_recv_action)(struct ieee80211_node *,
350				    const struct ieee80211_frame *,
351				    const uint8_t *frm, const uint8_t *efrm);
352	int			(*ic_send_action)(struct ieee80211_node *,
353				    int category, int action, void *);
354	/* check if A-MPDU should be enabled this station+ac */
355	int			(*ic_ampdu_enable)(struct ieee80211_node *,
356				    struct ieee80211_tx_ampdu *);
357	/* start/stop doing A-MPDU tx aggregation for a station */
358	int			(*ic_addba_request)(struct ieee80211_node *,
359				    struct ieee80211_tx_ampdu *,
360				    int dialogtoken, int baparamset,
361				    int batimeout);
362	int			(*ic_addba_response)(struct ieee80211_node *,
363				    struct ieee80211_tx_ampdu *,
364				    int status, int baparamset, int batimeout);
365	void			(*ic_addba_stop)(struct ieee80211_node *,
366				    struct ieee80211_tx_ampdu *);
367	void			(*ic_addba_response_timeout)(struct ieee80211_node *,
368				    struct ieee80211_tx_ampdu *);
369	/* BAR response received */
370	void			(*ic_bar_response)(struct ieee80211_node *,
371				    struct ieee80211_tx_ampdu *, int status);
372	/* start/stop doing A-MPDU rx processing for a station */
373	int			(*ic_ampdu_rx_start)(struct ieee80211_node *,
374				    struct ieee80211_rx_ampdu *, int baparamset,
375				    int batimeout, int baseqctl);
376	void			(*ic_ampdu_rx_stop)(struct ieee80211_node *,
377				    struct ieee80211_rx_ampdu *);
378
379	/* The channel width has changed (20<->2040) */
380	void			(*ic_update_chw)(struct ieee80211com *);
381
382	const struct debugnet80211_methods	*ic_debugnet_meth;
383	uint64_t		ic_spare[7];
384};
385
386struct ieee80211_aclator;
387struct ieee80211_tdma_state;
388struct ieee80211_mesh_state;
389struct ieee80211_hwmp_state;
390struct ieee80211_rx_histogram;
391struct ieee80211_tx_histogram;
392
393struct ieee80211vap {
394	struct ifmedia		iv_media;	/* interface media config */
395	struct ifnet		*iv_ifp;	/* associated device */
396	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
397	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
398	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
399
400	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
401	struct ieee80211com	*iv_ic;		/* back ptr to common state */
402	/* MAC address: ifp or ic */
403	uint8_t			iv_myaddr[IEEE80211_ADDR_LEN];
404	uint32_t		iv_debug;	/* debug msg flags */
405	struct ieee80211_stats	iv_stats;	/* statistics */
406
407	uint32_t		iv_flags;	/* state flags */
408	uint32_t		iv_flags_ext;	/* extended state flags */
409	uint32_t		iv_flags_ht;	/* HT state flags */
410	uint32_t		iv_flags_ven;	/* vendor state flags */
411	uint32_t		iv_ifflags;	/* ifnet flags */
412	uint32_t		iv_caps;	/* capabilities */
413	uint32_t		iv_htcaps;	/* HT capabilities */
414	uint32_t		iv_htextcaps;	/* HT extended capabilities */
415	uint32_t		iv_com_state;	/* com usage / detached flag */
416	enum ieee80211_opmode	iv_opmode;	/* operation mode */
417	enum ieee80211_state	iv_state;	/* state machine state */
418	enum ieee80211_state	iv_nstate;	/* pending state */
419	int			iv_nstate_arg;	/* pending state arg */
420	struct task		iv_nstate_task;	/* deferred state processing */
421	struct task		iv_swbmiss_task;/* deferred iv_bmiss call */
422	struct callout		iv_mgtsend;	/* mgmt frame response timer */
423						/* inactivity timer settings */
424	int			iv_inact_init;	/* setting for new station */
425	int			iv_inact_auth;	/* auth but not assoc setting */
426	int			iv_inact_run;	/* authorized setting */
427	int			iv_inact_probe;	/* inactive probe time */
428
429	/* VHT flags */
430	uint32_t		iv_flags_vht;	/* VHT state flags */
431	uint32_t		iv_vhtcaps;	/* VHT capabilities */
432	uint32_t		iv_vhtextcaps;	/* VHT extended capabilities (TODO) */
433	struct ieee80211_vht_mcs_info	iv_vht_mcsinfo;
434	uint32_t		iv_vht_spare[4];
435
436	int			iv_des_nssid;	/* # desired ssids */
437	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
438	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
439	struct ieee80211_channel *iv_des_chan;	/* desired channel */
440	uint16_t		iv_des_mode;	/* desired mode */
441	int			iv_nicknamelen;	/* XXX junk */
442	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
443	u_int			iv_bgscanidle;	/* bg scan idle threshold */
444	u_int			iv_bgscanintvl;	/* bg scan min interval */
445	u_int			iv_scanvalid;	/* scan cache valid threshold */
446	u_int			iv_scanreq_duration;
447	u_int			iv_scanreq_mindwell;
448	u_int			iv_scanreq_maxdwell;
449	uint16_t		iv_scanreq_flags;/* held scan request params */
450	uint8_t			iv_scanreq_nssid;
451	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
452	/* sta-mode roaming state */
453	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
454	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
455
456	uint8_t			iv_bmissthreshold;
457	uint8_t			iv_bmiss_count;	/* current beacon miss count */
458	int			iv_bmiss_max;	/* max bmiss before scan */
459	uint16_t		iv_swbmiss_count;/* beacons in last period */
460	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
461	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
462
463	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
464	int			iv_ampdu_density;/* A-MPDU density */
465	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
466	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
467	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
468
469	struct ieee80211_beacon_offsets iv_bcn_off;
470	uint32_t		*iv_aid_bitmap;	/* association id map */
471	uint16_t		iv_max_aid;
472	uint16_t		iv_sta_assoc;	/* stations associated */
473	uint16_t		iv_ps_sta;	/* stations in power save */
474	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
475	uint16_t		iv_txseq;	/* mcast xmit seq# space */
476	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
477	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
478	uint8_t			iv_dtim_period;	/* DTIM period */
479	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
480						/* set/unset aid pwrsav state */
481	uint8_t			iv_quiet;	/* Quiet Element */
482	uint8_t			iv_quiet_count;	/* constant count for Quiet Element */
483	uint8_t			iv_quiet_count_value;	/* variable count for Quiet Element */
484	uint8_t			iv_quiet_period;	/* period for Quiet Element */
485	uint16_t		iv_quiet_duration;	/* duration for Quiet Element */
486	uint16_t		iv_quiet_offset;	/* offset for Quiet Element */
487	int			iv_csa_count;	/* count for doing CSA */
488
489	struct ieee80211_node	*iv_bss;	/* information for this node */
490	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
491	uint16_t		iv_rtsthreshold;
492	uint16_t		iv_fragthreshold;
493	int			iv_inact_timer;	/* inactivity timer wait */
494	/* application-specified IE's to attach to mgt frames */
495	struct ieee80211_appie	*iv_appie_beacon;
496	struct ieee80211_appie	*iv_appie_probereq;
497	struct ieee80211_appie	*iv_appie_proberesp;
498	struct ieee80211_appie	*iv_appie_assocreq;
499	struct ieee80211_appie	*iv_appie_assocresp;
500	struct ieee80211_appie	*iv_appie_wpa;
501	uint8_t			*iv_wpa_ie;
502	uint8_t			*iv_rsn_ie;
503
504	/* Key management */
505	uint16_t		iv_max_keyix;	/* max h/w key index */
506	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
507	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
508	int			(*iv_key_alloc)(struct ieee80211vap *,
509				    struct ieee80211_key *,
510				    ieee80211_keyix *, ieee80211_keyix *);
511	int			(*iv_key_delete)(struct ieee80211vap *,
512				    const struct ieee80211_key *);
513	int			(*iv_key_set)(struct ieee80211vap *,
514				    const struct ieee80211_key *);
515	void			(*iv_key_update_begin)(struct ieee80211vap *);
516	void			(*iv_key_update_end)(struct ieee80211vap *);
517	void			(*iv_update_deftxkey)(struct ieee80211vap *,
518				    ieee80211_keyix deftxkey);
519
520	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
521	void			*iv_ec;		/* private auth state */
522
523	const struct ieee80211_aclator *iv_acl;	/* acl glue */
524	void			*iv_as;		/* private aclator state */
525
526	const struct ieee80211_ratectl *iv_rate;
527	void			*iv_rs;		/* private ratectl state */
528
529	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
530	struct ieee80211_mesh_state *iv_mesh;	/* MBSS state */
531	struct ieee80211_hwmp_state *iv_hwmp;	/* HWMP state */
532
533	/* operate-mode detach hook */
534	void			(*iv_opdetach)(struct ieee80211vap *);
535	/* receive processing */
536	int			(*iv_input)(struct ieee80211_node *,
537				    struct mbuf *,
538				    const struct ieee80211_rx_stats *,
539				    int, int);
540	void			(*iv_recv_mgmt)(struct ieee80211_node *,
541				    struct mbuf *, int,
542				    const struct ieee80211_rx_stats *,
543				    int, int);
544	void			(*iv_recv_ctl)(struct ieee80211_node *,
545				    struct mbuf *, int);
546	void			(*iv_deliver_data)(struct ieee80211vap *,
547				    struct ieee80211_node *, struct mbuf *);
548#if 0
549	/* send processing */
550	int			(*iv_send_mgmt)(struct ieee80211_node *,
551				     int, int);
552#endif
553	/* beacon miss processing */
554	void			(*iv_bmiss)(struct ieee80211vap *);
555	/* reset device state after 802.11 parameter/state change */
556	int			(*iv_reset)(struct ieee80211vap *, u_long);
557	/* [schedule] beacon frame update */
558	void			(*iv_update_beacon)(struct ieee80211vap *, int);
559	/* power save handling */
560	void			(*iv_update_ps)(struct ieee80211vap *, int);
561	int			(*iv_set_tim)(struct ieee80211_node *, int);
562	void			(*iv_node_ps)(struct ieee80211_node *, int);
563	void			(*iv_sta_ps)(struct ieee80211vap *, int);
564	void			(*iv_recv_pspoll)(struct ieee80211_node *,
565				    struct mbuf *);
566
567	/* state machine processing */
568	int			(*iv_newstate)(struct ieee80211vap *,
569				    enum ieee80211_state, int);
570	/* 802.3 output method for raw frame xmit */
571	int			(*iv_output)(struct ifnet *, struct mbuf *,
572				    const struct sockaddr *, struct route *);
573
574	int			(*iv_wme_update)(struct ieee80211vap *,
575				    const struct wmeParams *wme_params);
576	struct task		iv_wme_task;	/* deferred VAP WME update */
577
578	/* associated state; protection mode */
579	enum ieee80211_protmode	iv_protmode;	/* 802.11g protection mode */
580	enum ieee80211_protmode	iv_htprotmode;	/* HT protection mode */
581	uint8_t			iv_curhtprotmode;/* HTINFO bss state */
582
583	uint16_t		iv_nonerpsta;	/* # non-ERP stations */
584	uint16_t		iv_longslotsta;	/* # long slot time stations */
585	uint16_t		iv_ht_sta_assoc;/* HT stations associated */
586	uint16_t		iv_ht40_sta_assoc;/* HT40 stations associated */
587	int			iv_lastnonerp;	/* last time non-ERP sta noted*/
588	int			iv_lastnonht;	/* last time non-HT sta noted */
589
590	/* update device state for 802.11 slot time change */
591	void			(*iv_updateslot)(struct ieee80211vap *);
592	struct task		iv_slot_task;	/* deferred slot time update */
593
594	struct task		iv_erp_protmode_task;	/* deferred ERP protmode update */
595	void			(*iv_erp_protmode_update)(struct ieee80211vap *);
596
597	struct task		iv_preamble_task;	/* deferred short/barker preamble update */
598	void			(*iv_preamble_update)(struct ieee80211vap *);
599
600	struct task		iv_ht_protmode_task;	/* deferred HT protmode update */
601	void			(*iv_ht_protmode_update)(struct ieee80211vap *);
602
603	/* per-vap U-APSD state */
604	uint8_t			iv_uapsdinfo;	/* sta mode QoS Info flags */
605
606	/* Optional transmit/receive histogram statistics */
607	struct ieee80211_rx_histogram	*rx_histogram;
608	struct ieee80211_tx_histogram	*tx_histogram;
609
610	uint64_t		iv_spare[6];
611};
612MALLOC_DECLARE(M_80211_VAP);
613
614#define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
615#define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
616
617/* ic_flags/iv_flags */
618#define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
619#define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
620#define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
621#define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
622/* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
623#define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
624#define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
625#define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
626/* 0x00000300 reserved */
627/* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
628#define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
629#define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
630#define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
631#define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
632#define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
633#define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
634/* 0x00030000 reserved */
635#define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
636#define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
637#define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
638#define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
639#define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
640#define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
641#define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
642#define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
643#define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
644#define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
645#define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
646#define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
647#define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
648#define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
649#define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
650
651#define	IEEE80211_F_BITS \
652	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN" \
653	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY" \
654	"\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
655	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
656	"\37DOTH\40DWDS"
657
658/* Atheros protocol-specific flags */
659#define	IEEE80211_F_ATHEROS \
660	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
661/* Check if an Atheros capability was negotiated for use */
662#define	IEEE80211_ATH_CAP(vap, ni, bit) \
663	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
664
665/* ic_flags_ext/iv_flags_ext */
666#define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
667#define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
668/* 0x00000006 reserved */
669#define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
670#define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
671#define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
672#define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
673#define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
674#define	IEEE80211_FEXT_4ADDR	 0x00000100	/* CONF: apply 4-addr encap */
675#define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
676#define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
677#define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
678#define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
679#define	IEEE80211_FEXT_STATEWAIT 0x00002000	/* STATUS: awaiting state chg */
680#define	IEEE80211_FEXT_REINIT	 0x00004000	/* STATUS: INIT state first */
681#define	IEEE80211_FEXT_BPF	 0x00008000	/* STATUS: BPF tap present */
682/* NB: immutable: should be set only when creating a vap */
683#define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
684#define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
685#define	IEEE80211_FEXT_UNIQMAC	 0x00040000	/* CONF: user or computed mac */
686#define	IEEE80211_FEXT_SCAN_OFFLOAD	0x00080000	/* CONF: scan is fully offloaded */
687#define	IEEE80211_FEXT_SEQNO_OFFLOAD	0x00100000	/* CONF: driver does seqno insertion/allocation */
688#define	IEEE80211_FEXT_FRAG_OFFLOAD	0x00200000	/* CONF: hardware does 802.11 fragmentation + assignment */
689#define	IEEE80211_FEXT_VHT	0x00400000	/* CONF: VHT support */
690#define	IEEE80211_FEXT_QUIET_IE	0x00800000	/* STATUS: quiet IE in a beacon has been added */
691#define	IEEE80211_FEXT_UAPSD	0x01000000	/* CONF: enable U-APSD */
692
693#define	IEEE80211_FEXT_BITS \
694	"\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
695	"\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
696	"\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC\24SCAN_OFFLOAD\25SEQNO_OFFLOAD" \
697	"\26VHT\27QUIET_IE"
698
699/* ic_flags_ht/iv_flags_ht */
700#define	IEEE80211_FHT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
701#define	IEEE80211_FHT_LDPC_TX	 0x00010000	/* CONF: LDPC tx enabled */
702#define	IEEE80211_FHT_LDPC_RX	 0x00020000	/* CONF: LDPC rx enabled */
703#define	IEEE80211_FHT_GF  	 0x00040000	/* CONF: Greenfield enabled */
704#define	IEEE80211_FHT_HT	 0x00080000	/* CONF: HT supported */
705#define	IEEE80211_FHT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
706#define	IEEE80211_FHT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU rx supported */
707#define	IEEE80211_FHT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
708#define	IEEE80211_FHT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU rx supported */
709#define	IEEE80211_FHT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
710#define	IEEE80211_FHT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
711#define	IEEE80211_FHT_SHORTGI20	 0x04000000	/* CONF: short GI in HT20 */
712#define	IEEE80211_FHT_SHORTGI40	 0x08000000	/* CONF: short GI in HT40 */
713#define	IEEE80211_FHT_HTCOMPAT 	 0x10000000	/* CONF: HT vendor OUI's */
714#define	IEEE80211_FHT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
715#define	IEEE80211_FHT_STBC_TX 	 0x40000000	/* CONF: STBC tx enabled */
716#define	IEEE80211_FHT_STBC_RX 	 0x80000000	/* CONF: STBC rx enabled */
717
718#define	IEEE80211_FHT_BITS \
719	"\20\1NONHT_PR" \
720	"\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
721	"\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
722	"\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
723
724#define	IEEE80211_FVEN_BITS	"\20"
725
726#define	IEEE80211_FVHT_VHT	0x000000001	/* CONF: VHT supported */
727#define	IEEE80211_FVHT_USEVHT40	0x000000002	/* CONF: Use VHT40 */
728#define	IEEE80211_FVHT_USEVHT80	0x000000004	/* CONF: Use VHT80 */
729#define	IEEE80211_FVHT_USEVHT160	0x000000008	/* CONF: Use VHT160 */
730#define	IEEE80211_FVHT_USEVHT80P80	0x000000010	/* CONF: Use VHT 80+80 */
731#define	IEEE80211_FVHT_MASK						\
732	(IEEE80211_FVHT_VHT | IEEE80211_FVHT_USEVHT40 |			\
733	IEEE80211_FVHT_USEVHT80 | IEEE80211_FVHT_USEVHT160 |		\
734	IEEE80211_FVHT_USEVHT80P80)
735#define	IEEE80211_VFHT_BITS \
736	"\20\1VHT\2VHT40\3VHT80\4VHT160\5VHT80P80"
737
738#define	IEEE80211_COM_DETACHED	0x00000001	/* ieee80211_ifdetach called */
739#define	IEEE80211_COM_REF_ADD	0x00000002	/* add / remove reference */
740#define	IEEE80211_COM_REF	0xfffffffe	/* reference counter bits */
741#define	IEEE80211_COM_REF_S	1
742#define	IEEE80211_COM_REF_MAX	(IEEE80211_COM_REF >> IEEE80211_COM_REF_S)
743
744int	ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
745void	ieee80211_ifattach(struct ieee80211com *);
746void	ieee80211_ifdetach(struct ieee80211com *);
747int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
748		const char name[IFNAMSIZ], int unit,
749		enum ieee80211_opmode opmode, int flags,
750		const uint8_t bssid[IEEE80211_ADDR_LEN]);
751int	ieee80211_vap_attach(struct ieee80211vap *,
752		ifm_change_cb_t, ifm_stat_cb_t,
753		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
754void	ieee80211_vap_detach(struct ieee80211vap *);
755const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
756		const struct ieee80211_channel *);
757const struct ieee80211_htrateset *ieee80211_get_suphtrates(
758		struct ieee80211com *, const struct ieee80211_channel *);
759void	ieee80211_announce(struct ieee80211com *);
760void	ieee80211_announce_channels(struct ieee80211com *);
761void	ieee80211_drain(struct ieee80211com *);
762void	ieee80211_chan_init(struct ieee80211com *);
763struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
764struct ieee80211com *ieee80211_find_com(const char *name);
765typedef void ieee80211_com_iter_func(void *, struct ieee80211com *);
766void	ieee80211_iterate_coms(ieee80211_com_iter_func *, void *);
767int	ieee80211_media_change(struct ifnet *);
768void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
769int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
770int	ieee80211_rate2media(struct ieee80211com *, int,
771		enum ieee80211_phymode);
772int	ieee80211_media2rate(int);
773int	ieee80211_mhz2ieee(u_int, u_int);
774int	ieee80211_chan2ieee(struct ieee80211com *,
775		const struct ieee80211_channel *);
776u_int	ieee80211_ieee2mhz(u_int, u_int);
777int	ieee80211_add_channel_cbw(struct ieee80211_channel[], int, int *,
778	    uint8_t, uint16_t, int8_t, uint32_t, const uint8_t[], int);
779int	ieee80211_add_channel(struct ieee80211_channel[], int, int *,
780	    uint8_t, uint16_t, int8_t, uint32_t, const uint8_t[]);
781int	ieee80211_add_channel_ht40(struct ieee80211_channel[], int, int *,
782	    uint8_t, int8_t, uint32_t);
783uint32_t ieee80211_get_channel_center_freq(const struct ieee80211_channel *);
784uint32_t ieee80211_get_channel_center_freq1(const struct ieee80211_channel *);
785uint32_t ieee80211_get_channel_center_freq2(const struct ieee80211_channel *);
786#define	NET80211_CBW_FLAG_HT40		0x01
787#define	NET80211_CBW_FLAG_VHT80		0x02
788#define	NET80211_CBW_FLAG_VHT160	0x04
789#define	NET80211_CBW_FLAG_VHT80P80	0x08
790int	ieee80211_add_channel_list_2ghz(struct ieee80211_channel[], int, int *,
791	    const uint8_t[], int, const uint8_t[], int);
792int	ieee80211_add_channels_default_2ghz(struct ieee80211_channel[], int,
793	    int *, const uint8_t[], int);
794int	ieee80211_add_channel_list_5ghz(struct ieee80211_channel[], int, int *,
795	    const uint8_t[], int, const uint8_t[], int);
796struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
797		int freq, int flags);
798struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
799		int ieee, int flags);
800struct ieee80211_channel *ieee80211_lookup_channel_rxstatus(struct ieee80211vap *,
801		const struct ieee80211_rx_stats *);
802int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
803enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
804uint32_t ieee80211_mac_hash(const struct ieee80211com *,
805		const uint8_t addr[IEEE80211_ADDR_LEN]);
806char	ieee80211_channel_type_char(const struct ieee80211_channel *c);
807
808#define	ieee80211_get_current_channel(_ic)	((_ic)->ic_curchan)
809#define	ieee80211_get_home_channel(_ic)		((_ic)->ic_bsschan)
810#define	ieee80211_get_vap_desired_channel(_iv)	((_iv)->iv_des_chan)
811
812void	ieee80211_radiotap_attach(struct ieee80211com *,
813	    struct ieee80211_radiotap_header *th, int tlen,
814		uint32_t tx_radiotap,
815	    struct ieee80211_radiotap_header *rh, int rlen,
816		uint32_t rx_radiotap);
817void	ieee80211_radiotap_attachv(struct ieee80211com *,
818	    struct ieee80211_radiotap_header *th,
819	    int tlen, int n_tx_v, uint32_t tx_radiotap,
820	    struct ieee80211_radiotap_header *rh,
821	    int rlen, int n_rx_v, uint32_t rx_radiotap);
822void	ieee80211_radiotap_detach(struct ieee80211com *);
823void	ieee80211_radiotap_vattach(struct ieee80211vap *);
824void	ieee80211_radiotap_vdetach(struct ieee80211vap *);
825void	ieee80211_radiotap_chan_change(struct ieee80211com *);
826void	ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
827void	ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
828void	ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
829
830static __inline int
831ieee80211_radiotap_active(const struct ieee80211com *ic)
832{
833	return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
834}
835
836static __inline int
837ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
838{
839	return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
840	    vap->iv_ic->ic_montaps != 0;
841}
842
843/*
844 * Enqueue a task on the state thread.
845 */
846static __inline void
847ieee80211_runtask(struct ieee80211com *ic, struct task *task)
848{
849	taskqueue_enqueue(ic->ic_tq, task);
850}
851
852/*
853 * Wait for a queued task to complete.
854 */
855static __inline void
856ieee80211_draintask(struct ieee80211com *ic, struct task *task)
857{
858	taskqueue_drain(ic->ic_tq, task);
859}
860
861/*
862 * Key update synchronization methods.  XXX should not be visible.
863 */
864static __inline void
865ieee80211_key_update_begin(struct ieee80211vap *vap)
866{
867	vap->iv_key_update_begin(vap);
868}
869static __inline void
870ieee80211_key_update_end(struct ieee80211vap *vap)
871{
872	vap->iv_key_update_end(vap);
873}
874
875/*
876 * XXX these need to be here for IEEE80211_F_DATAPAD
877 */
878
879/*
880 * Return the space occupied by the 802.11 header and any
881 * padding required by the driver.  This works for a
882 * management or data frame.
883 */
884static __inline int
885ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
886{
887	int size = ieee80211_hdrsize(data);
888	if (ic->ic_flags & IEEE80211_F_DATAPAD)
889		size = roundup(size, sizeof(uint32_t));
890	return size;
891}
892
893/*
894 * Like ieee80211_hdrspace, but handles any type of frame.
895 */
896static __inline int
897ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
898{
899	int size = ieee80211_anyhdrsize(data);
900	if (ic->ic_flags & IEEE80211_F_DATAPAD)
901		size = roundup(size, sizeof(uint32_t));
902	return size;
903}
904
905/*
906 * Notify a vap that beacon state has been updated.
907 */
908static __inline void
909ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
910{
911	if (vap->iv_state == IEEE80211_S_RUN)
912		vap->iv_update_beacon(vap, what);
913}
914
915/*
916 * Calculate HT channel promotion flags for a channel.
917 * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
918 */
919static __inline int
920ieee80211_htchanflags(const struct ieee80211_channel *c)
921{
922	return IEEE80211_IS_CHAN_HT40(c) ?
923	    IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
924	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
925}
926
927/*
928 * Calculate VHT channel promotion flags for a channel.
929 * XXX belongs in ieee80211_vht.h but needs IEEE80211_FVHT_*
930 */
931static __inline int
932ieee80211_vhtchanflags(const struct ieee80211_channel *c)
933{
934
935	if (IEEE80211_IS_CHAN_VHT80P80(c))
936		return IEEE80211_FVHT_USEVHT80P80;
937	if (IEEE80211_IS_CHAN_VHT160(c))
938		return IEEE80211_FVHT_USEVHT160;
939	if (IEEE80211_IS_CHAN_VHT80(c))
940		return IEEE80211_FVHT_USEVHT80;
941	if (IEEE80211_IS_CHAN_VHT40(c))
942		return IEEE80211_FVHT_USEVHT40;
943	if (IEEE80211_IS_CHAN_VHT(c))
944		return IEEE80211_FVHT_VHT;
945	return (0);
946}
947
948/*
949 * Fetch the current TX power (cap) for the given node.
950 *
951 * This includes the node and ic/vap TX power limit as needed,
952 * but it doesn't take into account any per-rate limit.
953 */
954static __inline uint16_t
955ieee80211_get_node_txpower(struct ieee80211_node *ni)
956{
957	struct ieee80211com *ic = ni->ni_ic;
958	uint16_t txpower;
959
960	txpower = ni->ni_txpower;
961	txpower = MIN(txpower, ic->ic_txpowlimit);
962	if (ic->ic_curchan != NULL) {
963		txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
964		txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
965	}
966
967	return (txpower);
968}
969
970/*
971 * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
972 *
973 * The intent is that any problem in the net80211 layer can be
974 * diagnosed by inspecting the statistics (dumped by the wlanstats
975 * program) and/or the msgs generated by net80211.  Messages are
976 * broken into functional classes and can be controlled with the
977 * wlandebug program.  Certain of these msg groups are for facilities
978 * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
979 */
980#define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
981#define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
982#define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
983#define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
984#define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
985#define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
986#define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
987#define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
988#define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
989#define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
990#define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
991#define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
992#define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
993#define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
994#define	IEEE80211_MSG_HWMP	0x00020000	/* hybrid mesh protocol */
995#define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
996#define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
997#define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
998#define	IEEE80211_MSG_MESH	0x00002000	/* mesh networking */
999#define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
1000#define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
1001#define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
1002#define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
1003#define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
1004#define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
1005#define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
1006#define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
1007#define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
1008#define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
1009#define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
1010#define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
1011
1012#define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
1013
1014#define	IEEE80211_MSG_BITS \
1015	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
1016	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
1017	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
1018	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
1019
1020/* Helper macros unified. */
1021#define	_IEEE80211_MASKSHIFT(_v, _f)	(((_v) & _f) >> _f##_S)
1022#define	_IEEE80211_SHIFTMASK(_v, _f)	(((_v) << _f##_S) & _f)
1023
1024#ifdef IEEE80211_DEBUG
1025#define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
1026#define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
1027	if (ieee80211_msg(_vap, _m))					\
1028		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
1029} while (0)
1030#define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
1031	if (ieee80211_msg(_vap, _m))					\
1032		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
1033} while (0)
1034#define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
1035	if (ieee80211_msg(_vap, _m))					\
1036		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
1037} while (0)
1038#define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
1039	if (ieee80211_msg(_vap, _m))					\
1040		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
1041} while (0)
1042void	ieee80211_note(const struct ieee80211vap *, const char *, ...);
1043void	ieee80211_note_mac(const struct ieee80211vap *,
1044		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
1045void	ieee80211_note_frame(const struct ieee80211vap *,
1046		const struct ieee80211_frame *, const char *, ...);
1047#define	ieee80211_msg_debug(_vap) \
1048	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
1049#define	ieee80211_msg_dumppkts(_vap) \
1050	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
1051#define	ieee80211_msg_input(_vap) \
1052	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
1053#define	ieee80211_msg_radius(_vap) \
1054	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
1055#define	ieee80211_msg_dumpradius(_vap) \
1056	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
1057#define	ieee80211_msg_dumpradkeys(_vap) \
1058	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
1059#define	ieee80211_msg_scan(_vap) \
1060	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
1061#define	ieee80211_msg_assoc(_vap) \
1062	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
1063
1064/*
1065 * Emit a debug message about discarding a frame or information
1066 * element.  One format is for extracting the mac address from
1067 * the frame header; the other is for when a header is not
1068 * available or otherwise appropriate.
1069 */
1070#define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
1071	if ((_vap)->iv_debug & (_m))					\
1072		ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
1073} while (0)
1074#define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
1075	if ((_vap)->iv_debug & (_m))					\
1076		ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
1077} while (0)
1078#define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
1079	if ((_vap)->iv_debug & (_m))					\
1080		ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
1081} while (0)
1082
1083void ieee80211_discard_frame(const struct ieee80211vap *,
1084	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
1085void ieee80211_discard_ie(const struct ieee80211vap *,
1086	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
1087void ieee80211_discard_mac(const struct ieee80211vap *,
1088	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
1089	const char *fmt, ...);
1090#else
1091#define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
1092#define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
1093#define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
1094#define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
1095#define	ieee80211_msg_dumppkts(_vap)	0
1096#define	ieee80211_msg(_vap, _m)		0
1097
1098#define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
1099#define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
1100#define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
1101#endif
1102
1103#endif /* _NET80211_IEEE80211_VAR_H_ */
1104