ieee80211_var.h revision 283531
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: head/sys/net80211/ieee80211_var.h 283531 2015-05-25 15:08:38Z glebius $
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#define	IEEE80211_TU_TO_TICKS(x)(((x) * 1024 * hz) / (1000 * 1000))
88
89/*
90 * 802.11 control state is split into a common portion that maps
91 * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
92 * that are bound to an ieee80211com instance and share a single
93 * underlying device.  Each VAP has a corresponding OS device
94 * entity through which traffic flows and that applications use
95 * for issuing ioctls, etc.
96 */
97
98/*
99 * Data common to one or more virtual AP's.  State shared by
100 * the underlying device and the net80211 layer is exposed here;
101 * e.g. device-specific callbacks.
102 */
103struct ieee80211vap;
104typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
105
106struct ieee80211_appie {
107	uint16_t		ie_len;		/* size of ie_data */
108	uint8_t			ie_data[];	/* user-specified IE's */
109};
110
111struct ieee80211_tdma_param;
112struct ieee80211_rate_table;
113struct ieee80211_tx_ampdu;
114struct ieee80211_rx_ampdu;
115struct ieee80211_superg;
116struct ieee80211_frame;
117
118struct ieee80211com {
119	struct ifnet		*ic_ifp;	/* associated device */
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	TAILQ_HEAD(, ieee80211vap) ic_vaps;	/* list of vap instances */
125	int			ic_headroom;	/* driver tx headroom needs */
126	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
127	enum ieee80211_opmode	ic_opmode;	/* operation mode */
128	struct ifmedia		ic_media;	/* interface media config */
129	struct callout		ic_inact;	/* inactivity processing */
130	struct taskqueue	*ic_tq;		/* deferred state thread */
131	struct task		ic_parent_task;	/* deferred parent processing */
132	struct task		ic_promisc_task;/* deferred promisc update */
133	struct task		ic_mcast_task;	/* deferred mcast update */
134	struct task		ic_chan_task;	/* deferred channel change */
135	struct task		ic_bmiss_task;	/* deferred beacon miss hndlr */
136	struct task		ic_chw_task;	/* deferred HT CHW update */
137
138	uint32_t		ic_flags;	/* state flags */
139	uint32_t		ic_flags_ext;	/* extended state flags */
140	uint32_t		ic_flags_ht;	/* HT state flags */
141	uint32_t		ic_flags_ven;	/* vendor state flags */
142	uint32_t		ic_caps;	/* capabilities */
143	uint32_t		ic_htcaps;	/* HT capabilities */
144	uint32_t		ic_htextcaps;	/* HT extended capabilities */
145	uint32_t		ic_cryptocaps;	/* crypto capabilities */
146	uint8_t			ic_modecaps[2];	/* set of mode capabilities */
147	uint8_t			ic_promisc;	/* vap's needing promisc mode */
148	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
149	uint8_t			ic_nrunning;	/* vap's marked running */
150	uint8_t			ic_curmode;	/* current mode */
151	uint16_t		ic_bintval;	/* beacon interval */
152	uint16_t		ic_lintval;	/* listen interval */
153	uint16_t		ic_holdover;	/* PM hold over duration */
154	uint16_t		ic_txpowlimit;	/* global tx power limit */
155	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
156
157	/*
158	 * Channel state:
159	 *
160	 * ic_channels is the set of available channels for the device;
161	 *    it is setup by the driver
162	 * ic_nchans is the number of valid entries in ic_channels
163	 * ic_chan_avail is a bit vector of these channels used to check
164	 *    whether a channel is available w/o searching the channel table.
165	 * ic_chan_active is a (potentially) constrained subset of
166	 *    ic_chan_avail that reflects any mode setting or user-specified
167	 *    limit on the set of channels to use/scan
168	 * ic_curchan is the current channel the device is set to; it may
169	 *    be different from ic_bsschan when we are off-channel scanning
170	 *    or otherwise doing background work
171	 * ic_bsschan is the channel selected for operation; it may
172	 *    be undefined (IEEE80211_CHAN_ANYC)
173	 * ic_prevchan is a cached ``previous channel'' used to optimize
174	 *    lookups when switching back+forth between two channels
175	 *    (e.g. for dynamic turbo)
176	 */
177	int			ic_nchans;	/* # entries in ic_channels */
178	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
179	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
180	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
181	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
182	struct ieee80211_channel *ic_curchan;	/* current channel */
183	const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
184	struct ieee80211_channel *ic_bsschan;	/* bss channel */
185	struct ieee80211_channel *ic_prevchan;	/* previous channel */
186	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
187	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
188	struct ieee80211_channel *ic_countryie_chan;
189
190	/* 802.11h/DFS state */
191	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
192	short			ic_csa_mode;	/* mode for doing CSA */
193	short			ic_csa_count;	/* count for doing CSA */
194	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
195
196	struct ieee80211_scan_state *ic_scan;	/* scan state */
197	int			ic_lastdata;	/* time of last data frame */
198	int			ic_lastscan;	/* time last scan completed */
199
200	/* NB: this is the union of all vap stations/neighbors */
201	int			ic_max_keyix;	/* max h/w key index */
202	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
203	struct ieee80211_ageq	ic_stageq;	/* frame staging queue */
204	uint32_t		ic_hash_key;	/* random key for mac hash */
205
206	/* XXX multi-bss: split out common/vap parts */
207	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
208
209	/* XXX multi-bss: can per-vap be done/make sense? */
210	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
211	uint16_t		ic_nonerpsta;	/* # non-ERP stations */
212	uint16_t		ic_longslotsta;	/* # long slot time stations */
213	uint16_t		ic_sta_assoc;	/* stations associated */
214	uint16_t		ic_ht_sta_assoc;/* HT stations associated */
215	uint16_t		ic_ht40_sta_assoc;/* HT40 stations associated */
216	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
217	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
218	int			ic_lastnonerp;	/* last time non-ERP sta noted*/
219	int			ic_lastnonht;	/* last time non-HT sta noted */
220	uint8_t			ic_rxstream;    /* # RX streams */
221	uint8_t			ic_txstream;    /* # TX streams */
222
223	/* optional state for Atheros SuperG protocol extensions */
224	struct ieee80211_superg	*ic_superg;
225
226	/* radiotap handling */
227	struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
228	void			*ic_txchan;	/* channel state in ic_th */
229	struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
230	void			*ic_rxchan;	/* channel state in ic_rh */
231	int			ic_montaps;	/* active monitor mode taps */
232
233	/* virtual ap create/delete */
234	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
235				    const char [IFNAMSIZ], int,
236				    enum ieee80211_opmode, int,
237				    const uint8_t [IEEE80211_ADDR_LEN],
238				    const uint8_t [IEEE80211_ADDR_LEN]);
239	void			(*ic_vap_delete)(struct ieee80211vap *);
240	/* operating mode attachment */
241	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
242	/* return hardware/radio capabilities */
243	void			(*ic_getradiocaps)(struct ieee80211com *,
244				    int, int *, struct ieee80211_channel []);
245	/* check and/or prepare regdomain state change */
246	int			(*ic_setregdomain)(struct ieee80211com *,
247				    struct ieee80211_regdomain *,
248				    int, struct ieee80211_channel []);
249
250	int			(*ic_set_quiet)(struct ieee80211_node *,
251				    u_int8_t *quiet_elm);
252
253	/* send/recv 802.11 management frame */
254	int			(*ic_send_mgmt)(struct ieee80211_node *,
255				     int, int);
256	/* send raw 802.11 frame */
257	int			(*ic_raw_xmit)(struct ieee80211_node *,
258				    struct mbuf *,
259				    const struct ieee80211_bpf_params *);
260	/* update device state for 802.11 slot time change */
261	void			(*ic_updateslot)(struct ifnet *);
262	/* handle multicast state changes */
263	void			(*ic_update_mcast)(struct ifnet *);
264	/* handle promiscuous mode changes */
265	void			(*ic_update_promisc)(struct ifnet *);
266	/* new station association callback/notification */
267	void			(*ic_newassoc)(struct ieee80211_node *, int);
268	/* TDMA update notification */
269	void			(*ic_tdma_update)(struct ieee80211_node *,
270				    const struct ieee80211_tdma_param *, int);
271	/* node state management */
272	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
273				    const uint8_t [IEEE80211_ADDR_LEN]);
274	void			(*ic_node_free)(struct ieee80211_node *);
275	void			(*ic_node_cleanup)(struct ieee80211_node *);
276	void			(*ic_node_age)(struct ieee80211_node *);
277	void			(*ic_node_drain)(struct ieee80211_node *);
278	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
279	void			(*ic_node_getsignal)(const struct ieee80211_node*,
280				    int8_t *, int8_t *);
281	void			(*ic_node_getmimoinfo)(
282				    const struct ieee80211_node*,
283				    struct ieee80211_mimo_info *);
284	/* scanning support */
285	void			(*ic_scan_start)(struct ieee80211com *);
286	void			(*ic_scan_end)(struct ieee80211com *);
287	void			(*ic_set_channel)(struct ieee80211com *);
288	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
289				    unsigned long);
290	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
291
292	/*
293	 * 802.11n ADDBA support.  A simple/generic implementation
294	 * of A-MPDU tx aggregation is provided; the driver may
295	 * override these methods to provide their own support.
296	 * A-MPDU rx re-ordering happens automatically if the
297	 * driver passes out-of-order frames to ieee80211_input
298	 * from an assocated HT station.
299	 */
300	int			(*ic_recv_action)(struct ieee80211_node *,
301				    const struct ieee80211_frame *,
302				    const uint8_t *frm, const uint8_t *efrm);
303	int			(*ic_send_action)(struct ieee80211_node *,
304				    int category, int action, void *);
305	/* check if A-MPDU should be enabled this station+ac */
306	int			(*ic_ampdu_enable)(struct ieee80211_node *,
307				    struct ieee80211_tx_ampdu *);
308	/* start/stop doing A-MPDU tx aggregation for a station */
309	int			(*ic_addba_request)(struct ieee80211_node *,
310				    struct ieee80211_tx_ampdu *,
311				    int dialogtoken, int baparamset,
312				    int batimeout);
313	int			(*ic_addba_response)(struct ieee80211_node *,
314				    struct ieee80211_tx_ampdu *,
315				    int status, int baparamset, int batimeout);
316	void			(*ic_addba_stop)(struct ieee80211_node *,
317				    struct ieee80211_tx_ampdu *);
318	void			(*ic_addba_response_timeout)(struct ieee80211_node *,
319				    struct ieee80211_tx_ampdu *);
320	/* BAR response received */
321	void			(*ic_bar_response)(struct ieee80211_node *,
322				    struct ieee80211_tx_ampdu *, int status);
323	/* start/stop doing A-MPDU rx processing for a station */
324	int			(*ic_ampdu_rx_start)(struct ieee80211_node *,
325				    struct ieee80211_rx_ampdu *, int baparamset,
326				    int batimeout, int baseqctl);
327	void			(*ic_ampdu_rx_stop)(struct ieee80211_node *,
328				    struct ieee80211_rx_ampdu *);
329
330	/* The channel width has changed (20<->2040) */
331	void			(*ic_update_chw)(struct ieee80211com *);
332
333	uint64_t		ic_spare[7];
334};
335
336struct ieee80211_aclator;
337struct ieee80211_tdma_state;
338struct ieee80211_mesh_state;
339struct ieee80211_hwmp_state;
340
341struct ieee80211vap {
342	struct ifmedia		iv_media;	/* interface media config */
343	struct ifnet		*iv_ifp;	/* associated device */
344	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
345	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
346	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
347
348	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
349	struct ieee80211com	*iv_ic;		/* back ptr to common state */
350	uint32_t		iv_debug;	/* debug msg flags */
351	struct ieee80211_stats	iv_stats;	/* statistics */
352
353	uint8_t			iv_myaddr[IEEE80211_ADDR_LEN];
354	uint32_t		iv_flags;	/* state flags */
355	uint32_t		iv_flags_ext;	/* extended state flags */
356	uint32_t		iv_flags_ht;	/* HT state flags */
357	uint32_t		iv_flags_ven;	/* vendor state flags */
358	uint32_t		iv_caps;	/* capabilities */
359	uint32_t		iv_htcaps;	/* HT capabilities */
360	uint32_t		iv_htextcaps;	/* HT extended capabilities */
361	enum ieee80211_opmode	iv_opmode;	/* operation mode */
362	enum ieee80211_state	iv_state;	/* state machine state */
363	enum ieee80211_state	iv_nstate;	/* pending state */
364	int			iv_nstate_arg;	/* pending state arg */
365	struct task		iv_nstate_task;	/* deferred state processing */
366	struct task		iv_swbmiss_task;/* deferred iv_bmiss call */
367	struct callout		iv_mgtsend;	/* mgmt frame response timer */
368						/* inactivity timer settings */
369	int			iv_inact_init;	/* setting for new station */
370	int			iv_inact_auth;	/* auth but not assoc setting */
371	int			iv_inact_run;	/* authorized setting */
372	int			iv_inact_probe;	/* inactive probe time */
373
374	int			iv_des_nssid;	/* # desired ssids */
375	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
376	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
377	struct ieee80211_channel *iv_des_chan;	/* desired channel */
378	uint16_t		iv_des_mode;	/* desired mode */
379	int			iv_nicknamelen;	/* XXX junk */
380	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
381	u_int			iv_bgscanidle;	/* bg scan idle threshold */
382	u_int			iv_bgscanintvl;	/* bg scan min interval */
383	u_int			iv_scanvalid;	/* scan cache valid threshold */
384	u_int			iv_scanreq_duration;
385	u_int			iv_scanreq_mindwell;
386	u_int			iv_scanreq_maxdwell;
387	uint16_t		iv_scanreq_flags;/* held scan request params */
388	uint8_t			iv_scanreq_nssid;
389	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
390	/* sta-mode roaming state */
391	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
392	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
393
394	uint8_t			iv_bmissthreshold;
395	uint8_t			iv_bmiss_count;	/* current beacon miss count */
396	int			iv_bmiss_max;	/* max bmiss before scan */
397	uint16_t		iv_swbmiss_count;/* beacons in last period */
398	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
399	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
400
401	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
402	int			iv_ampdu_density;/* A-MPDU density */
403	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
404	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
405	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
406
407	uint32_t		*iv_aid_bitmap;	/* association id map */
408	uint16_t		iv_max_aid;
409	uint16_t		iv_sta_assoc;	/* stations associated */
410	uint16_t		iv_ps_sta;	/* stations in power save */
411	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
412	uint16_t		iv_txseq;	/* mcast xmit seq# space */
413	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
414	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
415	uint8_t			iv_dtim_period;	/* DTIM period */
416	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
417						/* set/unset aid pwrsav state */
418	uint8_t			iv_quiet;	/* Quiet Element */
419	uint8_t			iv_quiet_count;	/* constant count for Quiet Element */
420	uint8_t			iv_quiet_count_value;	/* variable count for Quiet Element */
421	uint8_t			iv_quiet_period;	/* period for Quiet Element */
422	uint16_t		iv_quiet_duration;	/* duration for Quiet Element */
423	uint16_t		iv_quiet_offset;	/* offset for Quiet Element */
424	int			iv_csa_count;	/* count for doing CSA */
425
426	struct ieee80211_node	*iv_bss;	/* information for this node */
427	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
428	uint16_t		iv_rtsthreshold;
429	uint16_t		iv_fragthreshold;
430	int			iv_inact_timer;	/* inactivity timer wait */
431	/* application-specified IE's to attach to mgt frames */
432	struct ieee80211_appie	*iv_appie_beacon;
433	struct ieee80211_appie	*iv_appie_probereq;
434	struct ieee80211_appie	*iv_appie_proberesp;
435	struct ieee80211_appie	*iv_appie_assocreq;
436	struct ieee80211_appie	*iv_appie_assocresp;
437	struct ieee80211_appie	*iv_appie_wpa;
438	uint8_t			*iv_wpa_ie;
439	uint8_t			*iv_rsn_ie;
440	uint16_t		iv_max_keyix;	/* max h/w key index */
441	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
442	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
443	int			(*iv_key_alloc)(struct ieee80211vap *,
444				    struct ieee80211_key *,
445				    ieee80211_keyix *, ieee80211_keyix *);
446	int			(*iv_key_delete)(struct ieee80211vap *,
447				    const struct ieee80211_key *);
448	int			(*iv_key_set)(struct ieee80211vap *,
449				    const struct ieee80211_key *,
450				    const uint8_t mac[IEEE80211_ADDR_LEN]);
451	void			(*iv_key_update_begin)(struct ieee80211vap *);
452	void			(*iv_key_update_end)(struct ieee80211vap *);
453
454	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
455	void			*iv_ec;		/* private auth state */
456
457	const struct ieee80211_aclator *iv_acl;	/* acl glue */
458	void			*iv_as;		/* private aclator state */
459
460	const struct ieee80211_ratectl *iv_rate;
461	void			*iv_rs;		/* private ratectl state */
462
463	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
464	struct ieee80211_mesh_state *iv_mesh;	/* MBSS state */
465	struct ieee80211_hwmp_state *iv_hwmp;	/* HWMP state */
466
467	/* operate-mode detach hook */
468	void			(*iv_opdetach)(struct ieee80211vap *);
469	/* receive processing */
470	int			(*iv_input)(struct ieee80211_node *,
471				    struct mbuf *, int, int);
472	void			(*iv_recv_mgmt)(struct ieee80211_node *,
473				    struct mbuf *, int, int, int);
474	void			(*iv_recv_ctl)(struct ieee80211_node *,
475				    struct mbuf *, int);
476	void			(*iv_deliver_data)(struct ieee80211vap *,
477				    struct ieee80211_node *, struct mbuf *);
478#if 0
479	/* send processing */
480	int			(*iv_send_mgmt)(struct ieee80211_node *,
481				     int, int);
482#endif
483	/* beacon miss processing */
484	void			(*iv_bmiss)(struct ieee80211vap *);
485	/* reset device state after 802.11 parameter/state change */
486	int			(*iv_reset)(struct ieee80211vap *, u_long);
487	/* [schedule] beacon frame update */
488	void			(*iv_update_beacon)(struct ieee80211vap *, int);
489	/* power save handling */
490	void			(*iv_update_ps)(struct ieee80211vap *, int);
491	int			(*iv_set_tim)(struct ieee80211_node *, int);
492	void			(*iv_node_ps)(struct ieee80211_node *, int);
493	void			(*iv_sta_ps)(struct ieee80211vap *, int);
494	void			(*iv_recv_pspoll)(struct ieee80211_node *,
495				    struct mbuf *);
496
497	/* state machine processing */
498	int			(*iv_newstate)(struct ieee80211vap *,
499				    enum ieee80211_state, int);
500	/* 802.3 output method for raw frame xmit */
501#if __FreeBSD_version >= 1000031
502	int			(*iv_output)(struct ifnet *, struct mbuf *,
503				    const struct sockaddr *, struct route *);
504#else
505	int			(*iv_output)(struct ifnet *, struct mbuf *,
506				    struct sockaddr *, struct route *);
507#endif
508	uint64_t		iv_spare[6];
509};
510MALLOC_DECLARE(M_80211_VAP);
511
512#define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
513#define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
514
515/* ic_flags/iv_flags */
516#define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
517#define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
518#define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
519#define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
520/* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
521#define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
522#define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
523#define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
524#define	IEEE80211_F_ASCAN	0x00000100	/* STATUS: active scan */
525#define	IEEE80211_F_SIBSS	0x00000200	/* STATUS: start IBSS */
526/* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
527#define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
528#define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
529#define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
530#define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
531#define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
532#define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
533#define IEEE80211_F_TXPOW_FIXED	0x00010000	/* TX Power: fixed rate */
534#define	IEEE80211_F_IBSSON	0x00020000	/* CONF: IBSS creation enable */
535#define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
536#define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
537#define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
538#define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
539#define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
540#define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
541#define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
542#define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
543#define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
544#define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
545#define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
546#define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
547#define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
548#define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
549#define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
550
551#define	IEEE80211_F_BITS \
552	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN\11ASCAN\12SIBSS" \
553	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY\21TXPOW_FIXED" \
554	"\22IBSSON\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
555	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
556	"\37DOTH\40DWDS"
557
558/* Atheros protocol-specific flags */
559#define	IEEE80211_F_ATHEROS \
560	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
561/* Check if an Atheros capability was negotiated for use */
562#define	IEEE80211_ATH_CAP(vap, ni, bit) \
563	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
564
565/* ic_flags_ext/iv_flags_ext */
566#define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
567#define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
568/* 0x00000006 reserved */
569#define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
570#define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
571#define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
572#define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
573#define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
574#define	IEEE80211_FEXT_4ADDR	 0x00000100	/* CONF: apply 4-addr encap */
575#define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
576#define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
577#define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
578#define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
579#define	IEEE80211_FEXT_STATEWAIT 0x00002000	/* STATUS: awaiting state chg */
580#define	IEEE80211_FEXT_REINIT	 0x00004000	/* STATUS: INIT state first */
581#define	IEEE80211_FEXT_BPF	 0x00008000	/* STATUS: BPF tap present */
582/* NB: immutable: should be set only when creating a vap */
583#define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
584#define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
585#define	IEEE80211_FEXT_UNIQMAC	 0x00040000	/* CONF: user or computed mac */
586
587#define	IEEE80211_FEXT_BITS \
588	"\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
589	"\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
590	"\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC"
591
592/* ic_flags_ht/iv_flags_ht */
593#define	IEEE80211_FHT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
594#define	IEEE80211_FHT_GF  	 0x00040000	/* CONF: Greenfield enabled */
595#define	IEEE80211_FHT_HT	 0x00080000	/* CONF: HT supported */
596#define	IEEE80211_FHT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
597#define	IEEE80211_FHT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU rx supported */
598#define	IEEE80211_FHT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
599#define	IEEE80211_FHT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU rx supported */
600#define	IEEE80211_FHT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
601#define	IEEE80211_FHT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
602#define	IEEE80211_FHT_SHORTGI20	 0x04000000	/* CONF: short GI in HT20 */
603#define	IEEE80211_FHT_SHORTGI40	 0x08000000	/* CONF: short GI in HT40 */
604#define	IEEE80211_FHT_HTCOMPAT 	 0x10000000	/* CONF: HT vendor OUI's */
605#define	IEEE80211_FHT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
606#define	IEEE80211_FHT_STBC_TX 	 0x40000000	/* CONF: STBC tx enabled */
607#define	IEEE80211_FHT_STBC_RX 	 0x80000000	/* CONF: STBC rx enabled */
608
609#define	IEEE80211_FHT_BITS \
610	"\20\1NONHT_PR" \
611	"\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
612	"\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
613	"\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
614
615#define	IEEE80211_FVEN_BITS	"\20"
616
617/* ic_caps/iv_caps: device driver capabilities */
618/* 0x2e available */
619#define	IEEE80211_C_STA		0x00000001	/* CAPABILITY: STA available */
620#define	IEEE80211_C_8023ENCAP	0x00000002	/* CAPABILITY: 802.3 encap */
621#define	IEEE80211_C_FF		0x00000040	/* CAPABILITY: ATH FF avail */
622#define	IEEE80211_C_TURBOP	0x00000080	/* CAPABILITY: ATH Turbo avail*/
623#define	IEEE80211_C_IBSS	0x00000100	/* CAPABILITY: IBSS available */
624#define	IEEE80211_C_PMGT	0x00000200	/* CAPABILITY: Power mgmt */
625#define	IEEE80211_C_HOSTAP	0x00000400	/* CAPABILITY: HOSTAP avail */
626#define	IEEE80211_C_AHDEMO	0x00000800	/* CAPABILITY: Old Adhoc Demo */
627#define	IEEE80211_C_SWRETRY	0x00001000	/* CAPABILITY: sw tx retry */
628#define	IEEE80211_C_TXPMGT	0x00002000	/* CAPABILITY: tx power mgmt */
629#define	IEEE80211_C_SHSLOT	0x00004000	/* CAPABILITY: short slottime */
630#define	IEEE80211_C_SHPREAMBLE	0x00008000	/* CAPABILITY: short preamble */
631#define	IEEE80211_C_MONITOR	0x00010000	/* CAPABILITY: monitor mode */
632#define	IEEE80211_C_DFS		0x00020000	/* CAPABILITY: DFS/radar avail*/
633#define	IEEE80211_C_MBSS	0x00040000	/* CAPABILITY: MBSS available */
634#define	IEEE80211_C_SWSLEEP	0x00080000	/* CAPABILITY: do sleep here */
635/* 0x7c0000 available */
636#define	IEEE80211_C_WPA1	0x00800000	/* CAPABILITY: WPA1 avail */
637#define	IEEE80211_C_WPA2	0x01000000	/* CAPABILITY: WPA2 avail */
638#define	IEEE80211_C_WPA		0x01800000	/* CAPABILITY: WPA1+WPA2 avail*/
639#define	IEEE80211_C_BURST	0x02000000	/* CAPABILITY: frame bursting */
640#define	IEEE80211_C_WME		0x04000000	/* CAPABILITY: WME avail */
641#define	IEEE80211_C_WDS		0x08000000	/* CAPABILITY: 4-addr support */
642/* 0x10000000 reserved */
643#define	IEEE80211_C_BGSCAN	0x20000000	/* CAPABILITY: bg scanning */
644#define	IEEE80211_C_TXFRAG	0x40000000	/* CAPABILITY: tx fragments */
645#define	IEEE80211_C_TDMA	0x80000000	/* CAPABILITY: TDMA avail */
646/* XXX protection/barker? */
647
648#define	IEEE80211_C_OPMODE \
649	(IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \
650	 IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \
651	 IEEE80211_C_TDMA | IEEE80211_C_MBSS)
652
653#define	IEEE80211_C_BITS \
654	"\20\1STA\002803ENCAP\7FF\10TURBOP\11IBSS\12PMGT" \
655	"\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \
656	"\21MONITOR\22DFS\23MBSS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \
657	"\37TXFRAG\40TDMA"
658
659/*
660 * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities
661 *
662 * NB: the low 16-bits are the 802.11 definitions, the upper
663 *     16-bits are used to define s/w/driver capabilities.
664 */
665#define	IEEE80211_HTC_AMPDU	0x00010000	/* CAPABILITY: A-MPDU tx */
666#define	IEEE80211_HTC_AMSDU	0x00020000	/* CAPABILITY: A-MSDU tx */
667/* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
668#define	IEEE80211_HTC_HT	0x00040000	/* CAPABILITY: HT operation */
669#define	IEEE80211_HTC_SMPS	0x00080000	/* CAPABILITY: MIMO power save*/
670#define	IEEE80211_HTC_RIFS	0x00100000	/* CAPABILITY: RIFS support */
671#define	IEEE80211_HTC_RXUNEQUAL	0x00200000	/* CAPABILITY: RX unequal MCS */
672#define	IEEE80211_HTC_RXMCS32	0x00400000	/* CAPABILITY: MCS32 support */
673#define	IEEE80211_HTC_TXUNEQUAL	0x00800000	/* CAPABILITY: TX unequal MCS */
674#define	IEEE80211_HTC_TXMCS32	0x01000000	/* CAPABILITY: MCS32 suport */
675
676#define	IEEE80211_C_HTCAP_BITS \
677	"\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
678	"\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS"
679
680int	ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
681void	ieee80211_ifattach(struct ieee80211com *,
682		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
683void	ieee80211_ifdetach(struct ieee80211com *);
684int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
685		const char name[IFNAMSIZ], int unit,
686		enum ieee80211_opmode opmode, int flags,
687		const uint8_t bssid[IEEE80211_ADDR_LEN],
688		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
689int	ieee80211_vap_attach(struct ieee80211vap *,
690		ifm_change_cb_t, ifm_stat_cb_t);
691void	ieee80211_vap_detach(struct ieee80211vap *);
692const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
693		const struct ieee80211_channel *);
694void	ieee80211_announce(struct ieee80211com *);
695void	ieee80211_announce_channels(struct ieee80211com *);
696void	ieee80211_drain(struct ieee80211com *);
697void	ieee80211_media_init(struct ieee80211com *);
698struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
699int	ieee80211_media_change(struct ifnet *);
700void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
701int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
702int	ieee80211_rate2media(struct ieee80211com *, int,
703		enum ieee80211_phymode);
704int	ieee80211_media2rate(int);
705int	ieee80211_mhz2ieee(u_int, u_int);
706int	ieee80211_chan2ieee(struct ieee80211com *,
707		const struct ieee80211_channel *);
708u_int	ieee80211_ieee2mhz(u_int, u_int);
709struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
710		int freq, int flags);
711struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
712		int ieee, int flags);
713int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
714enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
715uint32_t ieee80211_mac_hash(const struct ieee80211com *,
716		const uint8_t addr[IEEE80211_ADDR_LEN]);
717char	ieee80211_channel_type_char(const struct ieee80211_channel *c);
718
719void	ieee80211_radiotap_attach(struct ieee80211com *,
720	    struct ieee80211_radiotap_header *th, int tlen,
721		uint32_t tx_radiotap,
722	    struct ieee80211_radiotap_header *rh, int rlen,
723		uint32_t rx_radiotap);
724void	ieee80211_radiotap_attachv(struct ieee80211com *,
725	    struct ieee80211_radiotap_header *th,
726	    int tlen, int n_tx_v, uint32_t tx_radiotap,
727	    struct ieee80211_radiotap_header *rh,
728	    int rlen, int n_rx_v, uint32_t rx_radiotap);
729void	ieee80211_radiotap_detach(struct ieee80211com *);
730void	ieee80211_radiotap_vattach(struct ieee80211vap *);
731void	ieee80211_radiotap_vdetach(struct ieee80211vap *);
732void	ieee80211_radiotap_chan_change(struct ieee80211com *);
733void	ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
734void	ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
735void	ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
736
737static __inline int
738ieee80211_radiotap_active(const struct ieee80211com *ic)
739{
740	return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
741}
742
743static __inline int
744ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
745{
746	return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
747	    vap->iv_ic->ic_montaps != 0;
748}
749
750/*
751 * Enqueue a task on the state thread.
752 */
753static __inline void
754ieee80211_runtask(struct ieee80211com *ic, struct task *task)
755{
756	taskqueue_enqueue(ic->ic_tq, task);
757}
758
759/*
760 * Wait for a queued task to complete.
761 */
762static __inline void
763ieee80211_draintask(struct ieee80211com *ic, struct task *task)
764{
765	taskqueue_drain(ic->ic_tq, task);
766}
767
768/*
769 * Key update synchronization methods.  XXX should not be visible.
770 */
771static __inline void
772ieee80211_key_update_begin(struct ieee80211vap *vap)
773{
774	vap->iv_key_update_begin(vap);
775}
776static __inline void
777ieee80211_key_update_end(struct ieee80211vap *vap)
778{
779	vap->iv_key_update_end(vap);
780}
781
782/*
783 * XXX these need to be here for IEEE80211_F_DATAPAD
784 */
785
786/*
787 * Return the space occupied by the 802.11 header and any
788 * padding required by the driver.  This works for a
789 * management or data frame.
790 */
791static __inline int
792ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
793{
794	int size = ieee80211_hdrsize(data);
795	if (ic->ic_flags & IEEE80211_F_DATAPAD)
796		size = roundup(size, sizeof(uint32_t));
797	return size;
798}
799
800/*
801 * Like ieee80211_hdrspace, but handles any type of frame.
802 */
803static __inline int
804ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
805{
806	int size = ieee80211_anyhdrsize(data);
807	if (ic->ic_flags & IEEE80211_F_DATAPAD)
808		size = roundup(size, sizeof(uint32_t));
809	return size;
810}
811
812/*
813 * Notify a vap that beacon state has been updated.
814 */
815static __inline void
816ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
817{
818	if (vap->iv_state == IEEE80211_S_RUN)
819		vap->iv_update_beacon(vap, what);
820}
821
822/*
823 * Calculate HT channel promotion flags for a channel.
824 * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
825 */
826static __inline int
827ieee80211_htchanflags(const struct ieee80211_channel *c)
828{
829	return IEEE80211_IS_CHAN_HT40(c) ?
830	    IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
831	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
832}
833
834/*
835 * Fetch the current TX power (cap) for the given node.
836 *
837 * This includes the node and ic/vap TX power limit as needed,
838 * but it doesn't take into account any per-rate limit.
839 */
840static __inline uint16_t
841ieee80211_get_node_txpower(struct ieee80211_node *ni)
842{
843	struct ieee80211com *ic = ni->ni_ic;
844	uint16_t txpower;
845
846	txpower = ni->ni_txpower;
847	txpower = MIN(txpower, ic->ic_txpowlimit);
848	if (ic->ic_curchan != NULL) {
849		txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
850		txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
851	}
852
853	return (txpower);
854}
855
856/*
857 * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
858 *
859 * The intent is that any problem in the net80211 layer can be
860 * diagnosed by inspecting the statistics (dumped by the wlanstats
861 * program) and/or the msgs generated by net80211.  Messages are
862 * broken into functional classes and can be controlled with the
863 * wlandebug program.  Certain of these msg groups are for facilities
864 * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
865 */
866#define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
867#define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
868#define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
869#define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
870#define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
871#define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
872#define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
873#define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
874#define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
875#define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
876#define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
877#define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
878#define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
879#define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
880#define	IEEE80211_MSG_HWMP	0x00020000	/* hybrid mesh protocol */
881#define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
882#define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
883#define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
884#define	IEEE80211_MSG_MESH	0x00002000	/* mesh networking */
885#define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
886#define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
887#define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
888#define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
889#define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
890#define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
891#define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
892#define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
893#define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
894#define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
895#define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
896#define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
897
898#define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
899
900#define	IEEE80211_MSG_BITS \
901	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
902	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
903	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
904	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
905
906#ifdef IEEE80211_DEBUG
907#define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
908#define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
909	if (ieee80211_msg(_vap, _m))					\
910		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
911} while (0)
912#define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
913	if (ieee80211_msg(_vap, _m))					\
914		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
915} while (0)
916#define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
917	if (ieee80211_msg(_vap, _m))					\
918		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
919} while (0)
920#define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
921	if (ieee80211_msg(_vap, _m))					\
922		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
923} while (0)
924void	ieee80211_note(const struct ieee80211vap *, const char *, ...);
925void	ieee80211_note_mac(const struct ieee80211vap *,
926		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
927void	ieee80211_note_frame(const struct ieee80211vap *,
928		const struct ieee80211_frame *, const char *, ...);
929#define	ieee80211_msg_debug(_vap) \
930	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
931#define	ieee80211_msg_dumppkts(_vap) \
932	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
933#define	ieee80211_msg_input(_vap) \
934	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
935#define	ieee80211_msg_radius(_vap) \
936	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
937#define	ieee80211_msg_dumpradius(_vap) \
938	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
939#define	ieee80211_msg_dumpradkeys(_vap) \
940	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
941#define	ieee80211_msg_scan(_vap) \
942	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
943#define	ieee80211_msg_assoc(_vap) \
944	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
945
946/*
947 * Emit a debug message about discarding a frame or information
948 * element.  One format is for extracting the mac address from
949 * the frame header; the other is for when a header is not
950 * available or otherwise appropriate.
951 */
952#define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
953	if ((_vap)->iv_debug & (_m))					\
954		ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
955} while (0)
956#define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
957	if ((_vap)->iv_debug & (_m))					\
958		ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
959} while (0)
960#define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
961	if ((_vap)->iv_debug & (_m))					\
962		ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
963} while (0)
964
965void ieee80211_discard_frame(const struct ieee80211vap *,
966	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
967void ieee80211_discard_ie(const struct ieee80211vap *,
968	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
969void ieee80211_discard_mac(const struct ieee80211vap *,
970	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
971	const char *fmt, ...);
972#else
973#define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
974#define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
975#define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
976#define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
977#define	ieee80211_msg_dumppkts(_vap)	0
978#define	ieee80211_msg(_vap, _m)		0
979
980#define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
981#define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
982#define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
983#endif
984
985#endif /* _NET80211_IEEE80211_VAR_H_ */
986