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: stable/11/sys/net80211/ieee80211_var.h 343976 2019-02-10 21:00:02Z avos $
27 */
28#ifndef _NET80211_IEEE80211_VAR_H_
29#define _NET80211_IEEE80211_VAR_H_
30
31/*
32 * Definitions for IEEE 802.11 drivers.
33 */
34/* NB: portability glue must go first */
35#if defined(__NetBSD__)
36#include <net80211/ieee80211_netbsd.h>
37#elif defined(__FreeBSD__)
38#include <net80211/ieee80211_freebsd.h>
39#elif defined(__linux__)
40#include <net80211/ieee80211_linux.h>
41#else
42#error	"No support for your operating system!"
43#endif
44
45#include <net80211/_ieee80211.h>
46#include <net80211/ieee80211.h>
47#include <net80211/ieee80211_ageq.h>
48#include <net80211/ieee80211_crypto.h>
49#include <net80211/ieee80211_dfs.h>
50#include <net80211/ieee80211_ioctl.h>		/* for ieee80211_stats */
51#include <net80211/ieee80211_phy.h>
52#include <net80211/ieee80211_power.h>
53#include <net80211/ieee80211_node.h>
54#include <net80211/ieee80211_proto.h>
55#include <net80211/ieee80211_radiotap.h>
56#include <net80211/ieee80211_scan.h>
57
58#define	IEEE80211_TXPOWER_MAX	100	/* .5 dBm (XXX units?) */
59#define	IEEE80211_TXPOWER_MIN	0	/* kill radio */
60
61#define	IEEE80211_DTIM_DEFAULT	1	/* default DTIM period */
62#define	IEEE80211_BINTVAL_DEFAULT 100	/* default beacon interval (TU's) */
63
64#define	IEEE80211_BMISS_MAX	2	/* maximum consecutive bmiss allowed */
65#define	IEEE80211_HWBMISS_DEFAULT 7	/* h/w bmiss threshold (beacons) */
66
67#define	IEEE80211_BGSCAN_INTVAL_MIN	15	/* min bg scan intvl (secs) */
68#define	IEEE80211_BGSCAN_INTVAL_DEFAULT	(5*60)	/* default bg scan intvl */
69
70#define	IEEE80211_BGSCAN_IDLE_MIN	100	/* min idle time (ms) */
71#define	IEEE80211_BGSCAN_IDLE_DEFAULT	250	/* default idle time (ms) */
72
73#define	IEEE80211_SCAN_VALID_MIN	10	/* min scan valid time (secs) */
74#define	IEEE80211_SCAN_VALID_DEFAULT	60	/* default scan valid time */
75
76#define	IEEE80211_PS_SLEEP	0x1	/* STA is in power saving mode */
77#define	IEEE80211_PS_MAX_QUEUE	50	/* maximum saved packets */
78
79#define	IEEE80211_FIXED_RATE_NONE	0xff
80#define	IEEE80211_TXMAX_DEFAULT		6	/* default ucast max retries */
81
82#define	IEEE80211_RTS_DEFAULT		IEEE80211_RTS_MAX
83#define	IEEE80211_FRAG_DEFAULT		IEEE80211_FRAG_MAX
84
85#define	IEEE80211_MS_TO_TU(x)	(((x) * 1000) / 1024)
86#define	IEEE80211_TU_TO_MS(x)	(((x) * 1024) / 1000)
87/* XXX TODO: cap this at 1, in case hz is not 1000 */
88#define	IEEE80211_TU_TO_TICKS(x)(((uint64_t)(x) * 1024 * hz) / (1000 * 1000))
89
90/*
91 * 802.11 control state is split into a common portion that maps
92 * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
93 * that are bound to an ieee80211com instance and share a single
94 * underlying device.  Each VAP has a corresponding OS device
95 * entity through which traffic flows and that applications use
96 * for issuing ioctls, etc.
97 */
98
99/*
100 * Data common to one or more virtual AP's.  State shared by
101 * the underlying device and the net80211 layer is exposed here;
102 * e.g. device-specific callbacks.
103 */
104struct ieee80211vap;
105typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
106
107struct ieee80211_appie {
108	uint16_t		ie_len;		/* size of ie_data */
109	uint8_t			ie_data[];	/* user-specified IE's */
110};
111
112struct ieee80211_tdma_param;
113struct ieee80211_rate_table;
114struct ieee80211_tx_ampdu;
115struct ieee80211_rx_ampdu;
116struct ieee80211_superg;
117struct ieee80211_frame;
118
119struct ieee80211com {
120	void			*ic_softc;	/* driver softc */
121	const char		*ic_name;	/* usually device name */
122	ieee80211_com_lock_t	ic_comlock;	/* state update lock */
123	ieee80211_tx_lock_t	ic_txlock;	/* ic/vap TX lock */
124	ieee80211_ff_lock_t	ic_fflock;	/* stageq/ni_tx_superg lock */
125	LIST_ENTRY(ieee80211com)   ic_next;	/* on global list */
126	TAILQ_HEAD(, ieee80211vap) ic_vaps;	/* list of vap instances */
127	int			ic_headroom;	/* driver tx headroom needs */
128	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
129	enum ieee80211_opmode	ic_opmode;	/* operation mode */
130	struct callout		ic_inact;	/* inactivity processing */
131	struct taskqueue	*ic_tq;		/* deferred state thread */
132	struct task		ic_parent_task;	/* deferred parent processing */
133	struct task		ic_promisc_task;/* deferred promisc update */
134	struct task		ic_mcast_task;	/* deferred mcast update */
135	struct task		ic_chan_task;	/* deferred channel change */
136	struct task		ic_bmiss_task;	/* deferred beacon miss hndlr */
137	struct task		ic_chw_task;	/* deferred HT CHW update */
138	struct task		ic_wme_task;	/* deferred WME update */
139	struct task		ic_restart_task; /* deferred device restart */
140
141	counter_u64_t		ic_ierrors;	/* input errors */
142	counter_u64_t		ic_oerrors;	/* output errors */
143
144	uint32_t		ic_flags;	/* state flags */
145	uint32_t		ic_flags_ext;	/* extended state flags */
146	uint32_t		ic_flags_ht;	/* HT state flags */
147	uint32_t		ic_flags_ven;	/* vendor state flags */
148	uint32_t		ic_caps;	/* capabilities */
149	uint32_t		ic_htcaps;	/* HT capabilities */
150	uint32_t		ic_htextcaps;	/* HT extended capabilities */
151	uint32_t		ic_cryptocaps;	/* crypto capabilities */
152						/* set of mode capabilities */
153	uint8_t			ic_modecaps[IEEE80211_MODE_BYTES];
154	uint8_t			ic_promisc;	/* vap's needing promisc mode */
155	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
156	uint8_t			ic_nrunning;	/* vap's marked running */
157	uint8_t			ic_curmode;	/* current mode */
158	uint8_t			ic_macaddr[IEEE80211_ADDR_LEN];
159	uint16_t		ic_bintval;	/* beacon interval */
160	uint16_t		ic_lintval;	/* listen interval */
161	uint16_t		ic_holdover;	/* PM hold over duration */
162	uint16_t		ic_txpowlimit;	/* global tx power limit */
163	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
164
165	/*
166	 * Channel state:
167	 *
168	 * ic_channels is the set of available channels for the device;
169	 *    it is setup by the driver
170	 * ic_nchans is the number of valid entries in ic_channels
171	 * ic_chan_avail is a bit vector of these channels used to check
172	 *    whether a channel is available w/o searching the channel table.
173	 * ic_chan_active is a (potentially) constrained subset of
174	 *    ic_chan_avail that reflects any mode setting or user-specified
175	 *    limit on the set of channels to use/scan
176	 * ic_curchan is the current channel the device is set to; it may
177	 *    be different from ic_bsschan when we are off-channel scanning
178	 *    or otherwise doing background work
179	 * ic_bsschan is the channel selected for operation; it may
180	 *    be undefined (IEEE80211_CHAN_ANYC)
181	 * ic_prevchan is a cached ``previous channel'' used to optimize
182	 *    lookups when switching back+forth between two channels
183	 *    (e.g. for dynamic turbo)
184	 */
185	int			ic_nchans;	/* # entries in ic_channels */
186	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
187	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
188	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
189	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
190	struct ieee80211_channel *ic_curchan;	/* current channel */
191	const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
192	struct ieee80211_channel *ic_bsschan;	/* bss channel */
193	struct ieee80211_channel *ic_prevchan;	/* previous channel */
194	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
195	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
196	struct ieee80211_channel *ic_countryie_chan;
197
198	/* 802.11h/DFS state */
199	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
200	short			ic_csa_mode;	/* mode for doing CSA */
201	short			ic_csa_count;	/* count for doing CSA */
202	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
203
204	struct ieee80211_scan_state *ic_scan;	/* scan state */
205	struct ieee80211_scan_methods *ic_scan_methods;	/* scan methods */
206	int			ic_lastdata;	/* time of last data frame */
207	int			ic_lastscan;	/* time last scan completed */
208
209	/* NB: this is the union of all vap stations/neighbors */
210	int			ic_max_keyix;	/* max h/w key index */
211	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
212	struct ieee80211_ageq	ic_stageq;	/* frame staging queue */
213	uint32_t		ic_hash_key;	/* random key for mac hash */
214
215	/* XXX multi-bss: split out common/vap parts */
216	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
217
218	/* XXX multi-bss: can per-vap be done/make sense? */
219	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
220	uint16_t		ic_nonerpsta;	/* # non-ERP stations */
221	uint16_t		ic_longslotsta;	/* # long slot time stations */
222	uint16_t		ic_sta_assoc;	/* stations associated */
223	uint16_t		ic_ht_sta_assoc;/* HT stations associated */
224	uint16_t		ic_ht40_sta_assoc;/* HT40 stations associated */
225	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
226	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
227	int			ic_lastnonerp;	/* last time non-ERP sta noted*/
228	int			ic_lastnonht;	/* last time non-HT sta noted */
229	uint8_t			ic_rxstream;    /* # RX streams */
230	uint8_t			ic_txstream;    /* # TX streams */
231
232	/* optional state for Atheros SuperG protocol extensions */
233	struct ieee80211_superg	*ic_superg;
234
235	/* radiotap handling */
236	struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
237	void			*ic_txchan;	/* channel state in ic_th */
238	struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
239	void			*ic_rxchan;	/* channel state in ic_rh */
240	int			ic_montaps;	/* active monitor mode taps */
241
242	/* virtual ap create/delete */
243	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
244				    const char [IFNAMSIZ], int,
245				    enum ieee80211_opmode, int,
246				    const uint8_t [IEEE80211_ADDR_LEN],
247				    const uint8_t [IEEE80211_ADDR_LEN]);
248	void			(*ic_vap_delete)(struct ieee80211vap *);
249	/* device specific ioctls */
250	int			(*ic_ioctl)(struct ieee80211com *,
251				    u_long, void *);
252	/* start/stop device */
253	void			(*ic_parent)(struct ieee80211com *);
254	/* operating mode attachment */
255	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
256	/* return hardware/radio capabilities */
257	void			(*ic_getradiocaps)(struct ieee80211com *,
258				    int, int *, struct ieee80211_channel []);
259	/* check and/or prepare regdomain state change */
260	int			(*ic_setregdomain)(struct ieee80211com *,
261				    struct ieee80211_regdomain *,
262				    int, struct ieee80211_channel []);
263
264	int			(*ic_set_quiet)(struct ieee80211_node *,
265				    u_int8_t *quiet_elm);
266
267	/* regular transmit */
268	int			(*ic_transmit)(struct ieee80211com *,
269				    struct mbuf *);
270	/* send/recv 802.11 management frame */
271	int			(*ic_send_mgmt)(struct ieee80211_node *,
272				     int, int);
273	/* send raw 802.11 frame */
274	int			(*ic_raw_xmit)(struct ieee80211_node *,
275				    struct mbuf *,
276				    const struct ieee80211_bpf_params *);
277	/* update device state for 802.11 slot time change */
278	void			(*ic_updateslot)(struct ieee80211com *);
279	/* handle multicast state changes */
280	void			(*ic_update_mcast)(struct ieee80211com *);
281	/* handle promiscuous mode changes */
282	void			(*ic_update_promisc)(struct ieee80211com *);
283	/* new station association callback/notification */
284	void			(*ic_newassoc)(struct ieee80211_node *, int);
285	/* TDMA update notification */
286	void			(*ic_tdma_update)(struct ieee80211_node *,
287				    const struct ieee80211_tdma_param *, int);
288	/* node state management */
289	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
290				    const uint8_t [IEEE80211_ADDR_LEN]);
291	void			(*ic_node_free)(struct ieee80211_node *);
292	void			(*ic_node_cleanup)(struct ieee80211_node *);
293	void			(*ic_node_age)(struct ieee80211_node *);
294	void			(*ic_node_drain)(struct ieee80211_node *);
295	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
296	void			(*ic_node_getsignal)(const struct ieee80211_node*,
297				    int8_t *, int8_t *);
298	void			(*ic_node_getmimoinfo)(
299				    const struct ieee80211_node*,
300				    struct ieee80211_mimo_info *);
301	/* scanning support */
302	void			(*ic_scan_start)(struct ieee80211com *);
303	void			(*ic_scan_end)(struct ieee80211com *);
304	void			(*ic_set_channel)(struct ieee80211com *);
305	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
306				    unsigned long);
307	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
308
309	/*
310	 * 802.11n ADDBA support.  A simple/generic implementation
311	 * of A-MPDU tx aggregation is provided; the driver may
312	 * override these methods to provide their own support.
313	 * A-MPDU rx re-ordering happens automatically if the
314	 * driver passes out-of-order frames to ieee80211_input
315	 * from an assocated HT station.
316	 */
317	int			(*ic_recv_action)(struct ieee80211_node *,
318				    const struct ieee80211_frame *,
319				    const uint8_t *frm, const uint8_t *efrm);
320	int			(*ic_send_action)(struct ieee80211_node *,
321				    int category, int action, void *);
322	/* check if A-MPDU should be enabled this station+ac */
323	int			(*ic_ampdu_enable)(struct ieee80211_node *,
324				    struct ieee80211_tx_ampdu *);
325	/* start/stop doing A-MPDU tx aggregation for a station */
326	int			(*ic_addba_request)(struct ieee80211_node *,
327				    struct ieee80211_tx_ampdu *,
328				    int dialogtoken, int baparamset,
329				    int batimeout);
330	int			(*ic_addba_response)(struct ieee80211_node *,
331				    struct ieee80211_tx_ampdu *,
332				    int status, int baparamset, int batimeout);
333	void			(*ic_addba_stop)(struct ieee80211_node *,
334				    struct ieee80211_tx_ampdu *);
335	void			(*ic_addba_response_timeout)(struct ieee80211_node *,
336				    struct ieee80211_tx_ampdu *);
337	/* BAR response received */
338	void			(*ic_bar_response)(struct ieee80211_node *,
339				    struct ieee80211_tx_ampdu *, int status);
340	/* start/stop doing A-MPDU rx processing for a station */
341	int			(*ic_ampdu_rx_start)(struct ieee80211_node *,
342				    struct ieee80211_rx_ampdu *, int baparamset,
343				    int batimeout, int baseqctl);
344	void			(*ic_ampdu_rx_stop)(struct ieee80211_node *,
345				    struct ieee80211_rx_ampdu *);
346
347	/* The channel width has changed (20<->2040) */
348	void			(*ic_update_chw)(struct ieee80211com *);
349
350	uint64_t		ic_spare[7];
351};
352
353struct ieee80211_aclator;
354struct ieee80211_tdma_state;
355struct ieee80211_mesh_state;
356struct ieee80211_hwmp_state;
357
358struct ieee80211vap {
359	struct ifmedia		iv_media;	/* interface media config */
360	struct ifnet		*iv_ifp;	/* associated device */
361	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
362	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
363	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
364
365	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
366	struct ieee80211com	*iv_ic;		/* back ptr to common state */
367	/* MAC address: ifp or ic */
368	uint8_t			iv_myaddr[IEEE80211_ADDR_LEN];
369	uint32_t		iv_debug;	/* debug msg flags */
370	struct ieee80211_stats	iv_stats;	/* statistics */
371
372	uint32_t		iv_flags;	/* state flags */
373	uint32_t		iv_flags_ext;	/* extended state flags */
374	uint32_t		iv_flags_ht;	/* HT state flags */
375	uint32_t		iv_flags_ven;	/* vendor state flags */
376	uint32_t		iv_ifflags;	/* ifnet flags */
377	uint32_t		iv_caps;	/* capabilities */
378	uint32_t		iv_htcaps;	/* HT capabilities */
379	uint32_t		iv_htextcaps;	/* HT extended capabilities */
380	enum ieee80211_opmode	iv_opmode;	/* operation mode */
381	enum ieee80211_state	iv_state;	/* state machine state */
382	enum ieee80211_state	iv_nstate;	/* pending state */
383	int			iv_nstate_arg;	/* pending state arg */
384	struct task		iv_nstate_task;	/* deferred state processing */
385	struct task		iv_swbmiss_task;/* deferred iv_bmiss call */
386	struct callout		iv_mgtsend;	/* mgmt frame response timer */
387						/* inactivity timer settings */
388	int			iv_inact_init;	/* setting for new station */
389	int			iv_inact_auth;	/* auth but not assoc setting */
390	int			iv_inact_run;	/* authorized setting */
391	int			iv_inact_probe;	/* inactive probe time */
392
393	int			iv_des_nssid;	/* # desired ssids */
394	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
395	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
396	struct ieee80211_channel *iv_des_chan;	/* desired channel */
397	uint16_t		iv_des_mode;	/* desired mode */
398	int			iv_nicknamelen;	/* XXX junk */
399	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
400	u_int			iv_bgscanidle;	/* bg scan idle threshold */
401	u_int			iv_bgscanintvl;	/* bg scan min interval */
402	u_int			iv_scanvalid;	/* scan cache valid threshold */
403	u_int			iv_scanreq_duration;
404	u_int			iv_scanreq_mindwell;
405	u_int			iv_scanreq_maxdwell;
406	uint16_t		iv_scanreq_flags;/* held scan request params */
407	uint8_t			iv_scanreq_nssid;
408	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
409	/* sta-mode roaming state */
410	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
411	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
412
413	uint8_t			iv_bmissthreshold;
414	uint8_t			iv_bmiss_count;	/* current beacon miss count */
415	int			iv_bmiss_max;	/* max bmiss before scan */
416	uint16_t		iv_swbmiss_count;/* beacons in last period */
417	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
418	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
419
420	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
421	int			iv_ampdu_density;/* A-MPDU density */
422	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
423	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
424	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
425
426	struct ieee80211_beacon_offsets iv_bcn_off;
427	uint32_t		*iv_aid_bitmap;	/* association id map */
428	uint16_t		iv_max_aid;
429	uint16_t		iv_sta_assoc;	/* stations associated */
430	uint16_t		iv_ps_sta;	/* stations in power save */
431	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
432	uint16_t		iv_txseq;	/* mcast xmit seq# space */
433	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
434	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
435	uint8_t			iv_dtim_period;	/* DTIM period */
436	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
437						/* set/unset aid pwrsav state */
438	uint8_t			iv_quiet;	/* Quiet Element */
439	uint8_t			iv_quiet_count;	/* constant count for Quiet Element */
440	uint8_t			iv_quiet_count_value;	/* variable count for Quiet Element */
441	uint8_t			iv_quiet_period;	/* period for Quiet Element */
442	uint16_t		iv_quiet_duration;	/* duration for Quiet Element */
443	uint16_t		iv_quiet_offset;	/* offset for Quiet Element */
444	int			iv_csa_count;	/* count for doing CSA */
445
446	struct ieee80211_node	*iv_bss;	/* information for this node */
447	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
448	uint16_t		iv_rtsthreshold;
449	uint16_t		iv_fragthreshold;
450	int			iv_inact_timer;	/* inactivity timer wait */
451	/* application-specified IE's to attach to mgt frames */
452	struct ieee80211_appie	*iv_appie_beacon;
453	struct ieee80211_appie	*iv_appie_probereq;
454	struct ieee80211_appie	*iv_appie_proberesp;
455	struct ieee80211_appie	*iv_appie_assocreq;
456	struct ieee80211_appie	*iv_appie_assocresp;
457	struct ieee80211_appie	*iv_appie_wpa;
458	uint8_t			*iv_wpa_ie;
459	uint8_t			*iv_rsn_ie;
460	uint16_t		iv_max_keyix;	/* max h/w key index */
461	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
462	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
463	int			(*iv_key_alloc)(struct ieee80211vap *,
464				    struct ieee80211_key *,
465				    ieee80211_keyix *, ieee80211_keyix *);
466	int			(*iv_key_delete)(struct ieee80211vap *,
467				    const struct ieee80211_key *);
468	int			(*iv_key_set)(struct ieee80211vap *,
469				    const struct ieee80211_key *);
470	void			(*iv_key_update_begin)(struct ieee80211vap *);
471	void			(*iv_key_update_end)(struct ieee80211vap *);
472
473	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
474	void			*iv_ec;		/* private auth state */
475
476	const struct ieee80211_aclator *iv_acl;	/* acl glue */
477	void			*iv_as;		/* private aclator state */
478
479	const struct ieee80211_ratectl *iv_rate;
480	void			*iv_rs;		/* private ratectl state */
481
482	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
483	struct ieee80211_mesh_state *iv_mesh;	/* MBSS state */
484	struct ieee80211_hwmp_state *iv_hwmp;	/* HWMP state */
485
486	/* operate-mode detach hook */
487	void			(*iv_opdetach)(struct ieee80211vap *);
488	/* receive processing */
489	int			(*iv_input)(struct ieee80211_node *,
490				    struct mbuf *,
491				    const struct ieee80211_rx_stats *,
492				    int, int);
493	void			(*iv_recv_mgmt)(struct ieee80211_node *,
494				    struct mbuf *, int,
495				    const struct ieee80211_rx_stats *,
496				    int, int);
497	void			(*iv_recv_ctl)(struct ieee80211_node *,
498				    struct mbuf *, int);
499	void			(*iv_deliver_data)(struct ieee80211vap *,
500				    struct ieee80211_node *, struct mbuf *);
501#if 0
502	/* send processing */
503	int			(*iv_send_mgmt)(struct ieee80211_node *,
504				     int, int);
505#endif
506	/* beacon miss processing */
507	void			(*iv_bmiss)(struct ieee80211vap *);
508	/* reset device state after 802.11 parameter/state change */
509	int			(*iv_reset)(struct ieee80211vap *, u_long);
510	/* [schedule] beacon frame update */
511	void			(*iv_update_beacon)(struct ieee80211vap *, int);
512	/* power save handling */
513	void			(*iv_update_ps)(struct ieee80211vap *, int);
514	int			(*iv_set_tim)(struct ieee80211_node *, int);
515	void			(*iv_node_ps)(struct ieee80211_node *, int);
516	void			(*iv_sta_ps)(struct ieee80211vap *, int);
517	void			(*iv_recv_pspoll)(struct ieee80211_node *,
518				    struct mbuf *);
519
520	/* state machine processing */
521	int			(*iv_newstate)(struct ieee80211vap *,
522				    enum ieee80211_state, int);
523	/* 802.3 output method for raw frame xmit */
524	int			(*iv_output)(struct ifnet *, struct mbuf *,
525				    const struct sockaddr *, struct route *);
526	uint64_t		iv_spare[5];
527	uint32_t		iv_com_state;	/* com usage / detached flag */
528	uint32_t		iv_spare1;
529};
530MALLOC_DECLARE(M_80211_VAP);
531
532#define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
533#define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
534
535/* ic_flags/iv_flags */
536#define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
537#define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
538#define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
539#define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
540/* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
541#define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
542#define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
543#define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
544#define	IEEE80211_F_ASCAN	0x00000100	/* STATUS: active scan */
545#define	IEEE80211_F_SIBSS	0x00000200	/* STATUS: start IBSS */
546/* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
547#define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
548#define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
549#define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
550#define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
551#define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
552#define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
553#define IEEE80211_F_TXPOW_FIXED	0x00010000	/* TX Power: fixed rate */
554#define	IEEE80211_F_IBSSON	0x00020000	/* CONF: IBSS creation enable */
555#define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
556#define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
557#define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
558#define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
559#define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
560#define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
561#define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
562#define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
563#define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
564#define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
565#define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
566#define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
567#define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
568#define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
569#define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
570
571#define	IEEE80211_F_BITS \
572	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN\11ASCAN\12SIBSS" \
573	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY\21TXPOW_FIXED" \
574	"\22IBSSON\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
575	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
576	"\37DOTH\40DWDS"
577
578/* Atheros protocol-specific flags */
579#define	IEEE80211_F_ATHEROS \
580	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
581/* Check if an Atheros capability was negotiated for use */
582#define	IEEE80211_ATH_CAP(vap, ni, bit) \
583	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
584
585/* ic_flags_ext/iv_flags_ext */
586#define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
587#define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
588/* 0x00000006 reserved */
589#define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
590#define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
591#define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
592#define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
593#define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
594#define	IEEE80211_FEXT_4ADDR	 0x00000100	/* CONF: apply 4-addr encap */
595#define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
596#define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
597#define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
598#define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
599#define	IEEE80211_FEXT_STATEWAIT 0x00002000	/* STATUS: awaiting state chg */
600#define	IEEE80211_FEXT_REINIT	 0x00004000	/* STATUS: INIT state first */
601#define	IEEE80211_FEXT_BPF	 0x00008000	/* STATUS: BPF tap present */
602/* NB: immutable: should be set only when creating a vap */
603#define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
604#define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
605#define	IEEE80211_FEXT_UNIQMAC	 0x00040000	/* CONF: user or computed mac */
606#define	IEEE80211_FEXT_SCAN_OFFLOAD	0x00080000	/* CONF: scan is fully offloaded */
607
608#define	IEEE80211_FEXT_BITS \
609	"\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
610	"\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
611	"\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC\24SCAN_OFFLOAD"
612
613/* ic_flags_ht/iv_flags_ht */
614#define	IEEE80211_FHT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
615#define	IEEE80211_FHT_GF  	 0x00040000	/* CONF: Greenfield enabled */
616#define	IEEE80211_FHT_HT	 0x00080000	/* CONF: HT supported */
617#define	IEEE80211_FHT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
618#define	IEEE80211_FHT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU rx supported */
619#define	IEEE80211_FHT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
620#define	IEEE80211_FHT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU rx supported */
621#define	IEEE80211_FHT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
622#define	IEEE80211_FHT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
623#define	IEEE80211_FHT_SHORTGI20	 0x04000000	/* CONF: short GI in HT20 */
624#define	IEEE80211_FHT_SHORTGI40	 0x08000000	/* CONF: short GI in HT40 */
625#define	IEEE80211_FHT_HTCOMPAT 	 0x10000000	/* CONF: HT vendor OUI's */
626#define	IEEE80211_FHT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
627#define	IEEE80211_FHT_STBC_TX 	 0x40000000	/* CONF: STBC tx enabled */
628#define	IEEE80211_FHT_STBC_RX 	 0x80000000	/* CONF: STBC rx enabled */
629
630#define	IEEE80211_FHT_BITS \
631	"\20\1NONHT_PR" \
632	"\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
633	"\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
634	"\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
635
636#define	IEEE80211_FVEN_BITS	"\20"
637
638/* ic_caps/iv_caps: device driver capabilities */
639/* 0x2e available */
640#define	IEEE80211_C_STA		0x00000001	/* CAPABILITY: STA available */
641#define	IEEE80211_C_8023ENCAP	0x00000002	/* CAPABILITY: 802.3 encap */
642#define	IEEE80211_C_FF		0x00000040	/* CAPABILITY: ATH FF avail */
643#define	IEEE80211_C_TURBOP	0x00000080	/* CAPABILITY: ATH Turbo avail*/
644#define	IEEE80211_C_IBSS	0x00000100	/* CAPABILITY: IBSS available */
645#define	IEEE80211_C_PMGT	0x00000200	/* CAPABILITY: Power mgmt */
646#define	IEEE80211_C_HOSTAP	0x00000400	/* CAPABILITY: HOSTAP avail */
647#define	IEEE80211_C_AHDEMO	0x00000800	/* CAPABILITY: Old Adhoc Demo */
648#define	IEEE80211_C_SWRETRY	0x00001000	/* CAPABILITY: sw tx retry */
649#define	IEEE80211_C_TXPMGT	0x00002000	/* CAPABILITY: tx power mgmt */
650#define	IEEE80211_C_SHSLOT	0x00004000	/* CAPABILITY: short slottime */
651#define	IEEE80211_C_SHPREAMBLE	0x00008000	/* CAPABILITY: short preamble */
652#define	IEEE80211_C_MONITOR	0x00010000	/* CAPABILITY: monitor mode */
653#define	IEEE80211_C_DFS		0x00020000	/* CAPABILITY: DFS/radar avail*/
654#define	IEEE80211_C_MBSS	0x00040000	/* CAPABILITY: MBSS available */
655#define	IEEE80211_C_SWSLEEP	0x00080000	/* CAPABILITY: do sleep here */
656#define	IEEE80211_C_SWAMSDUTX	0x00100000	/* CAPABILITY: software A-MSDU TX */
657/* 0x7c0000 available */
658#define	IEEE80211_C_WPA1	0x00800000	/* CAPABILITY: WPA1 avail */
659#define	IEEE80211_C_WPA2	0x01000000	/* CAPABILITY: WPA2 avail */
660#define	IEEE80211_C_WPA		0x01800000	/* CAPABILITY: WPA1+WPA2 avail*/
661#define	IEEE80211_C_BURST	0x02000000	/* CAPABILITY: frame bursting */
662#define	IEEE80211_C_WME		0x04000000	/* CAPABILITY: WME avail */
663#define	IEEE80211_C_WDS		0x08000000	/* CAPABILITY: 4-addr support */
664/* 0x10000000 reserved */
665#define	IEEE80211_C_BGSCAN	0x20000000	/* CAPABILITY: bg scanning */
666#define	IEEE80211_C_TXFRAG	0x40000000	/* CAPABILITY: tx fragments */
667#define	IEEE80211_C_TDMA	0x80000000	/* CAPABILITY: TDMA avail */
668/* XXX protection/barker? */
669
670#define	IEEE80211_C_OPMODE \
671	(IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \
672	 IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \
673	 IEEE80211_C_TDMA | IEEE80211_C_MBSS)
674
675#define	IEEE80211_C_BITS \
676	"\20\1STA\002803ENCAP\7FF\10TURBOP\11IBSS\12PMGT" \
677	"\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \
678	"\21MONITOR\22DFS\23MBSS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \
679	"\37TXFRAG\40TDMA"
680
681/*
682 * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities
683 *
684 * NB: the low 16-bits are the 802.11 definitions, the upper
685 *     16-bits are used to define s/w/driver capabilities.
686 */
687#define	IEEE80211_HTC_AMPDU	0x00010000	/* CAPABILITY: A-MPDU tx */
688#define	IEEE80211_HTC_AMSDU	0x00020000	/* CAPABILITY: A-MSDU tx */
689/* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
690#define	IEEE80211_HTC_HT	0x00040000	/* CAPABILITY: HT operation */
691#define	IEEE80211_HTC_SMPS	0x00080000	/* CAPABILITY: MIMO power save*/
692#define	IEEE80211_HTC_RIFS	0x00100000	/* CAPABILITY: RIFS support */
693#define	IEEE80211_HTC_RXUNEQUAL	0x00200000	/* CAPABILITY: RX unequal MCS */
694#define	IEEE80211_HTC_RXMCS32	0x00400000	/* CAPABILITY: MCS32 support */
695#define	IEEE80211_HTC_TXUNEQUAL	0x00800000	/* CAPABILITY: TX unequal MCS */
696#define	IEEE80211_HTC_TXMCS32	0x01000000	/* CAPABILITY: MCS32 suport */
697
698#define	IEEE80211_C_HTCAP_BITS \
699	"\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
700	"\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS"
701
702#define	IEEE80211_COM_DETACHED	0x00000001	/* ieee80211_ifdetach called */
703#define	IEEE80211_COM_REF_ADD	0x00000002	/* add / remove reference */
704#define	IEEE80211_COM_REF_M	0xfffffffe	/* reference counter bits */
705#define	IEEE80211_COM_REF_S	1
706#define	IEEE80211_COM_REF_MAX	(IEEE80211_COM_REF_M >> IEEE80211_COM_REF_S)
707
708int	ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
709void	ieee80211_ifattach(struct ieee80211com *);
710void	ieee80211_ifdetach(struct ieee80211com *);
711int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
712		const char name[IFNAMSIZ], int unit,
713		enum ieee80211_opmode opmode, int flags,
714		const uint8_t bssid[IEEE80211_ADDR_LEN]);
715int	ieee80211_vap_attach(struct ieee80211vap *,
716		ifm_change_cb_t, ifm_stat_cb_t,
717		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
718void	ieee80211_vap_detach(struct ieee80211vap *);
719const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
720		const struct ieee80211_channel *);
721void	ieee80211_announce(struct ieee80211com *);
722void	ieee80211_announce_channels(struct ieee80211com *);
723void	ieee80211_drain(struct ieee80211com *);
724void	ieee80211_chan_init(struct ieee80211com *);
725struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
726struct ieee80211com *ieee80211_find_com(const char *name);
727typedef void ieee80211_com_iter_func(void *, struct ieee80211com *);
728void	ieee80211_iterate_coms(ieee80211_com_iter_func *, void *);
729int	ieee80211_media_change(struct ifnet *);
730void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
731int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
732int	ieee80211_rate2media(struct ieee80211com *, int,
733		enum ieee80211_phymode);
734int	ieee80211_media2rate(int);
735int	ieee80211_mhz2ieee(u_int, u_int);
736int	ieee80211_chan2ieee(struct ieee80211com *,
737		const struct ieee80211_channel *);
738u_int	ieee80211_ieee2mhz(u_int, u_int);
739int	ieee80211_add_channel(struct ieee80211_channel[], int, int *,
740	    uint8_t, uint16_t, int8_t, uint32_t, const uint8_t[]);
741int	ieee80211_add_channel_ht40(struct ieee80211_channel[], int, int *,
742	    uint8_t, int8_t, uint32_t);
743int	ieee80211_add_channel_list_2ghz(struct ieee80211_channel[], int, int *,
744	    const uint8_t[], int, const uint8_t[], int);
745int	ieee80211_add_channels_default_2ghz(struct ieee80211_channel[], int,
746	    int *, const uint8_t[], int);
747int	ieee80211_add_channel_list_5ghz(struct ieee80211_channel[], int, int *,
748	    const uint8_t[], int, const uint8_t[], int);
749struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
750		int freq, int flags);
751struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
752		int ieee, int flags);
753struct ieee80211_channel *ieee80211_lookup_channel_rxstatus(struct ieee80211vap *,
754		const struct ieee80211_rx_stats *);
755int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
756enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
757uint32_t ieee80211_mac_hash(const struct ieee80211com *,
758		const uint8_t addr[IEEE80211_ADDR_LEN]);
759char	ieee80211_channel_type_char(const struct ieee80211_channel *c);
760
761void	ieee80211_radiotap_attach(struct ieee80211com *,
762	    struct ieee80211_radiotap_header *th, int tlen,
763		uint32_t tx_radiotap,
764	    struct ieee80211_radiotap_header *rh, int rlen,
765		uint32_t rx_radiotap);
766void	ieee80211_radiotap_attachv(struct ieee80211com *,
767	    struct ieee80211_radiotap_header *th,
768	    int tlen, int n_tx_v, uint32_t tx_radiotap,
769	    struct ieee80211_radiotap_header *rh,
770	    int rlen, int n_rx_v, uint32_t rx_radiotap);
771void	ieee80211_radiotap_detach(struct ieee80211com *);
772void	ieee80211_radiotap_vattach(struct ieee80211vap *);
773void	ieee80211_radiotap_vdetach(struct ieee80211vap *);
774void	ieee80211_radiotap_chan_change(struct ieee80211com *);
775void	ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
776void	ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
777void	ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
778
779static __inline int
780ieee80211_radiotap_active(const struct ieee80211com *ic)
781{
782	return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
783}
784
785static __inline int
786ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
787{
788	return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
789	    vap->iv_ic->ic_montaps != 0;
790}
791
792/*
793 * Enqueue a task on the state thread.
794 */
795static __inline void
796ieee80211_runtask(struct ieee80211com *ic, struct task *task)
797{
798	taskqueue_enqueue(ic->ic_tq, task);
799}
800
801/*
802 * Wait for a queued task to complete.
803 */
804static __inline void
805ieee80211_draintask(struct ieee80211com *ic, struct task *task)
806{
807	taskqueue_drain(ic->ic_tq, task);
808}
809
810/*
811 * Key update synchronization methods.  XXX should not be visible.
812 */
813static __inline void
814ieee80211_key_update_begin(struct ieee80211vap *vap)
815{
816	vap->iv_key_update_begin(vap);
817}
818static __inline void
819ieee80211_key_update_end(struct ieee80211vap *vap)
820{
821	vap->iv_key_update_end(vap);
822}
823
824/*
825 * XXX these need to be here for IEEE80211_F_DATAPAD
826 */
827
828/*
829 * Return the space occupied by the 802.11 header and any
830 * padding required by the driver.  This works for a
831 * management or data frame.
832 */
833static __inline int
834ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
835{
836	int size = ieee80211_hdrsize(data);
837	if (ic->ic_flags & IEEE80211_F_DATAPAD)
838		size = roundup(size, sizeof(uint32_t));
839	return size;
840}
841
842/*
843 * Like ieee80211_hdrspace, but handles any type of frame.
844 */
845static __inline int
846ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
847{
848	int size = ieee80211_anyhdrsize(data);
849	if (ic->ic_flags & IEEE80211_F_DATAPAD)
850		size = roundup(size, sizeof(uint32_t));
851	return size;
852}
853
854/*
855 * Notify a vap that beacon state has been updated.
856 */
857static __inline void
858ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
859{
860	if (vap->iv_state == IEEE80211_S_RUN)
861		vap->iv_update_beacon(vap, what);
862}
863
864/*
865 * Calculate HT channel promotion flags for a channel.
866 * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
867 */
868static __inline int
869ieee80211_htchanflags(const struct ieee80211_channel *c)
870{
871	return IEEE80211_IS_CHAN_HT40(c) ?
872	    IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
873	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
874}
875
876/*
877 * Fetch the current TX power (cap) for the given node.
878 *
879 * This includes the node and ic/vap TX power limit as needed,
880 * but it doesn't take into account any per-rate limit.
881 */
882static __inline uint16_t
883ieee80211_get_node_txpower(struct ieee80211_node *ni)
884{
885	struct ieee80211com *ic = ni->ni_ic;
886	uint16_t txpower;
887
888	txpower = ni->ni_txpower;
889	txpower = MIN(txpower, ic->ic_txpowlimit);
890	if (ic->ic_curchan != NULL) {
891		txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
892		txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
893	}
894
895	return (txpower);
896}
897
898/*
899 * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
900 *
901 * The intent is that any problem in the net80211 layer can be
902 * diagnosed by inspecting the statistics (dumped by the wlanstats
903 * program) and/or the msgs generated by net80211.  Messages are
904 * broken into functional classes and can be controlled with the
905 * wlandebug program.  Certain of these msg groups are for facilities
906 * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
907 */
908#define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
909#define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
910#define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
911#define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
912#define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
913#define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
914#define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
915#define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
916#define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
917#define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
918#define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
919#define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
920#define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
921#define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
922#define	IEEE80211_MSG_HWMP	0x00020000	/* hybrid mesh protocol */
923#define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
924#define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
925#define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
926#define	IEEE80211_MSG_MESH	0x00002000	/* mesh networking */
927#define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
928#define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
929#define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
930#define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
931#define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
932#define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
933#define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
934#define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
935#define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
936#define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
937#define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
938#define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
939
940#define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
941
942#define	IEEE80211_MSG_BITS \
943	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
944	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
945	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
946	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
947
948#ifdef IEEE80211_DEBUG
949#define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
950#define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
951	if (ieee80211_msg(_vap, _m))					\
952		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
953} while (0)
954#define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
955	if (ieee80211_msg(_vap, _m))					\
956		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
957} while (0)
958#define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
959	if (ieee80211_msg(_vap, _m))					\
960		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
961} while (0)
962#define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
963	if (ieee80211_msg(_vap, _m))					\
964		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
965} while (0)
966void	ieee80211_note(const struct ieee80211vap *, const char *, ...);
967void	ieee80211_note_mac(const struct ieee80211vap *,
968		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
969void	ieee80211_note_frame(const struct ieee80211vap *,
970		const struct ieee80211_frame *, const char *, ...);
971#define	ieee80211_msg_debug(_vap) \
972	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
973#define	ieee80211_msg_dumppkts(_vap) \
974	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
975#define	ieee80211_msg_input(_vap) \
976	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
977#define	ieee80211_msg_radius(_vap) \
978	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
979#define	ieee80211_msg_dumpradius(_vap) \
980	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
981#define	ieee80211_msg_dumpradkeys(_vap) \
982	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
983#define	ieee80211_msg_scan(_vap) \
984	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
985#define	ieee80211_msg_assoc(_vap) \
986	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
987
988/*
989 * Emit a debug message about discarding a frame or information
990 * element.  One format is for extracting the mac address from
991 * the frame header; the other is for when a header is not
992 * available or otherwise appropriate.
993 */
994#define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
995	if ((_vap)->iv_debug & (_m))					\
996		ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
997} while (0)
998#define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
999	if ((_vap)->iv_debug & (_m))					\
1000		ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
1001} while (0)
1002#define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
1003	if ((_vap)->iv_debug & (_m))					\
1004		ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
1005} while (0)
1006
1007void ieee80211_discard_frame(const struct ieee80211vap *,
1008	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
1009void ieee80211_discard_ie(const struct ieee80211vap *,
1010	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
1011void ieee80211_discard_mac(const struct ieee80211vap *,
1012	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
1013	const char *fmt, ...);
1014#else
1015#define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
1016#define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
1017#define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
1018#define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
1019#define	ieee80211_msg_dumppkts(_vap)	0
1020#define	ieee80211_msg(_vap, _m)		0
1021
1022#define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
1023#define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
1024#define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
1025#endif
1026
1027#endif /* _NET80211_IEEE80211_VAR_H_ */
1028