ieee80211_var.h revision 283567
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 283567 2015-05-26 12:51:14Z 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	counter_u64_t		ic_ierrors;	/* input errors */
139	counter_u64_t		ic_oerrors;	/* output errors */
140
141	uint32_t		ic_flags;	/* state flags */
142	uint32_t		ic_flags_ext;	/* extended state flags */
143	uint32_t		ic_flags_ht;	/* HT state flags */
144	uint32_t		ic_flags_ven;	/* vendor state flags */
145	uint32_t		ic_caps;	/* capabilities */
146	uint32_t		ic_htcaps;	/* HT capabilities */
147	uint32_t		ic_htextcaps;	/* HT extended capabilities */
148	uint32_t		ic_cryptocaps;	/* crypto capabilities */
149	uint8_t			ic_modecaps[2];	/* set of mode capabilities */
150	uint8_t			ic_promisc;	/* vap's needing promisc mode */
151	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
152	uint8_t			ic_nrunning;	/* vap's marked running */
153	uint8_t			ic_curmode;	/* current mode */
154	uint16_t		ic_bintval;	/* beacon interval */
155	uint16_t		ic_lintval;	/* listen interval */
156	uint16_t		ic_holdover;	/* PM hold over duration */
157	uint16_t		ic_txpowlimit;	/* global tx power limit */
158	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
159
160	/*
161	 * Channel state:
162	 *
163	 * ic_channels is the set of available channels for the device;
164	 *    it is setup by the driver
165	 * ic_nchans is the number of valid entries in ic_channels
166	 * ic_chan_avail is a bit vector of these channels used to check
167	 *    whether a channel is available w/o searching the channel table.
168	 * ic_chan_active is a (potentially) constrained subset of
169	 *    ic_chan_avail that reflects any mode setting or user-specified
170	 *    limit on the set of channels to use/scan
171	 * ic_curchan is the current channel the device is set to; it may
172	 *    be different from ic_bsschan when we are off-channel scanning
173	 *    or otherwise doing background work
174	 * ic_bsschan is the channel selected for operation; it may
175	 *    be undefined (IEEE80211_CHAN_ANYC)
176	 * ic_prevchan is a cached ``previous channel'' used to optimize
177	 *    lookups when switching back+forth between two channels
178	 *    (e.g. for dynamic turbo)
179	 */
180	int			ic_nchans;	/* # entries in ic_channels */
181	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
182	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
183	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
184	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
185	struct ieee80211_channel *ic_curchan;	/* current channel */
186	const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
187	struct ieee80211_channel *ic_bsschan;	/* bss channel */
188	struct ieee80211_channel *ic_prevchan;	/* previous channel */
189	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
190	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
191	struct ieee80211_channel *ic_countryie_chan;
192
193	/* 802.11h/DFS state */
194	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
195	short			ic_csa_mode;	/* mode for doing CSA */
196	short			ic_csa_count;	/* count for doing CSA */
197	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
198
199	struct ieee80211_scan_state *ic_scan;	/* scan state */
200	int			ic_lastdata;	/* time of last data frame */
201	int			ic_lastscan;	/* time last scan completed */
202
203	/* NB: this is the union of all vap stations/neighbors */
204	int			ic_max_keyix;	/* max h/w key index */
205	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
206	struct ieee80211_ageq	ic_stageq;	/* frame staging queue */
207	uint32_t		ic_hash_key;	/* random key for mac hash */
208
209	/* XXX multi-bss: split out common/vap parts */
210	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
211
212	/* XXX multi-bss: can per-vap be done/make sense? */
213	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
214	uint16_t		ic_nonerpsta;	/* # non-ERP stations */
215	uint16_t		ic_longslotsta;	/* # long slot time stations */
216	uint16_t		ic_sta_assoc;	/* stations associated */
217	uint16_t		ic_ht_sta_assoc;/* HT stations associated */
218	uint16_t		ic_ht40_sta_assoc;/* HT40 stations associated */
219	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
220	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
221	int			ic_lastnonerp;	/* last time non-ERP sta noted*/
222	int			ic_lastnonht;	/* last time non-HT sta noted */
223	uint8_t			ic_rxstream;    /* # RX streams */
224	uint8_t			ic_txstream;    /* # TX streams */
225
226	/* optional state for Atheros SuperG protocol extensions */
227	struct ieee80211_superg	*ic_superg;
228
229	/* radiotap handling */
230	struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
231	void			*ic_txchan;	/* channel state in ic_th */
232	struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
233	void			*ic_rxchan;	/* channel state in ic_rh */
234	int			ic_montaps;	/* active monitor mode taps */
235
236	/* virtual ap create/delete */
237	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
238				    const char [IFNAMSIZ], int,
239				    enum ieee80211_opmode, int,
240				    const uint8_t [IEEE80211_ADDR_LEN],
241				    const uint8_t [IEEE80211_ADDR_LEN]);
242	void			(*ic_vap_delete)(struct ieee80211vap *);
243	/* operating mode attachment */
244	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
245	/* return hardware/radio capabilities */
246	void			(*ic_getradiocaps)(struct ieee80211com *,
247				    int, int *, struct ieee80211_channel []);
248	/* check and/or prepare regdomain state change */
249	int			(*ic_setregdomain)(struct ieee80211com *,
250				    struct ieee80211_regdomain *,
251				    int, struct ieee80211_channel []);
252
253	int			(*ic_set_quiet)(struct ieee80211_node *,
254				    u_int8_t *quiet_elm);
255
256	/* send/recv 802.11 management frame */
257	int			(*ic_send_mgmt)(struct ieee80211_node *,
258				     int, int);
259	/* send raw 802.11 frame */
260	int			(*ic_raw_xmit)(struct ieee80211_node *,
261				    struct mbuf *,
262				    const struct ieee80211_bpf_params *);
263	/* update device state for 802.11 slot time change */
264	void			(*ic_updateslot)(struct ieee80211com *);
265	/* handle multicast state changes */
266	void			(*ic_update_mcast)(struct ieee80211com *);
267	/* handle promiscuous mode changes */
268	void			(*ic_update_promisc)(struct ieee80211com *);
269	/* new station association callback/notification */
270	void			(*ic_newassoc)(struct ieee80211_node *, int);
271	/* TDMA update notification */
272	void			(*ic_tdma_update)(struct ieee80211_node *,
273				    const struct ieee80211_tdma_param *, int);
274	/* node state management */
275	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
276				    const uint8_t [IEEE80211_ADDR_LEN]);
277	void			(*ic_node_free)(struct ieee80211_node *);
278	void			(*ic_node_cleanup)(struct ieee80211_node *);
279	void			(*ic_node_age)(struct ieee80211_node *);
280	void			(*ic_node_drain)(struct ieee80211_node *);
281	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
282	void			(*ic_node_getsignal)(const struct ieee80211_node*,
283				    int8_t *, int8_t *);
284	void			(*ic_node_getmimoinfo)(
285				    const struct ieee80211_node*,
286				    struct ieee80211_mimo_info *);
287	/* scanning support */
288	void			(*ic_scan_start)(struct ieee80211com *);
289	void			(*ic_scan_end)(struct ieee80211com *);
290	void			(*ic_set_channel)(struct ieee80211com *);
291	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
292				    unsigned long);
293	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
294
295	/*
296	 * 802.11n ADDBA support.  A simple/generic implementation
297	 * of A-MPDU tx aggregation is provided; the driver may
298	 * override these methods to provide their own support.
299	 * A-MPDU rx re-ordering happens automatically if the
300	 * driver passes out-of-order frames to ieee80211_input
301	 * from an assocated HT station.
302	 */
303	int			(*ic_recv_action)(struct ieee80211_node *,
304				    const struct ieee80211_frame *,
305				    const uint8_t *frm, const uint8_t *efrm);
306	int			(*ic_send_action)(struct ieee80211_node *,
307				    int category, int action, void *);
308	/* check if A-MPDU should be enabled this station+ac */
309	int			(*ic_ampdu_enable)(struct ieee80211_node *,
310				    struct ieee80211_tx_ampdu *);
311	/* start/stop doing A-MPDU tx aggregation for a station */
312	int			(*ic_addba_request)(struct ieee80211_node *,
313				    struct ieee80211_tx_ampdu *,
314				    int dialogtoken, int baparamset,
315				    int batimeout);
316	int			(*ic_addba_response)(struct ieee80211_node *,
317				    struct ieee80211_tx_ampdu *,
318				    int status, int baparamset, int batimeout);
319	void			(*ic_addba_stop)(struct ieee80211_node *,
320				    struct ieee80211_tx_ampdu *);
321	void			(*ic_addba_response_timeout)(struct ieee80211_node *,
322				    struct ieee80211_tx_ampdu *);
323	/* BAR response received */
324	void			(*ic_bar_response)(struct ieee80211_node *,
325				    struct ieee80211_tx_ampdu *, int status);
326	/* start/stop doing A-MPDU rx processing for a station */
327	int			(*ic_ampdu_rx_start)(struct ieee80211_node *,
328				    struct ieee80211_rx_ampdu *, int baparamset,
329				    int batimeout, int baseqctl);
330	void			(*ic_ampdu_rx_stop)(struct ieee80211_node *,
331				    struct ieee80211_rx_ampdu *);
332
333	/* The channel width has changed (20<->2040) */
334	void			(*ic_update_chw)(struct ieee80211com *);
335
336	uint64_t		ic_spare[7];
337};
338
339struct ieee80211_aclator;
340struct ieee80211_tdma_state;
341struct ieee80211_mesh_state;
342struct ieee80211_hwmp_state;
343
344struct ieee80211vap {
345	struct ifmedia		iv_media;	/* interface media config */
346	struct ifnet		*iv_ifp;	/* associated device */
347	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
348	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
349	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
350
351	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
352	struct ieee80211com	*iv_ic;		/* back ptr to common state */
353	uint32_t		iv_debug;	/* debug msg flags */
354	struct ieee80211_stats	iv_stats;	/* statistics */
355
356	uint8_t			iv_myaddr[IEEE80211_ADDR_LEN];
357	uint32_t		iv_flags;	/* state flags */
358	uint32_t		iv_flags_ext;	/* extended state flags */
359	uint32_t		iv_flags_ht;	/* HT state flags */
360	uint32_t		iv_flags_ven;	/* vendor state flags */
361	uint32_t		iv_caps;	/* capabilities */
362	uint32_t		iv_htcaps;	/* HT capabilities */
363	uint32_t		iv_htextcaps;	/* HT extended capabilities */
364	enum ieee80211_opmode	iv_opmode;	/* operation mode */
365	enum ieee80211_state	iv_state;	/* state machine state */
366	enum ieee80211_state	iv_nstate;	/* pending state */
367	int			iv_nstate_arg;	/* pending state arg */
368	struct task		iv_nstate_task;	/* deferred state processing */
369	struct task		iv_swbmiss_task;/* deferred iv_bmiss call */
370	struct callout		iv_mgtsend;	/* mgmt frame response timer */
371						/* inactivity timer settings */
372	int			iv_inact_init;	/* setting for new station */
373	int			iv_inact_auth;	/* auth but not assoc setting */
374	int			iv_inact_run;	/* authorized setting */
375	int			iv_inact_probe;	/* inactive probe time */
376
377	int			iv_des_nssid;	/* # desired ssids */
378	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
379	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
380	struct ieee80211_channel *iv_des_chan;	/* desired channel */
381	uint16_t		iv_des_mode;	/* desired mode */
382	int			iv_nicknamelen;	/* XXX junk */
383	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
384	u_int			iv_bgscanidle;	/* bg scan idle threshold */
385	u_int			iv_bgscanintvl;	/* bg scan min interval */
386	u_int			iv_scanvalid;	/* scan cache valid threshold */
387	u_int			iv_scanreq_duration;
388	u_int			iv_scanreq_mindwell;
389	u_int			iv_scanreq_maxdwell;
390	uint16_t		iv_scanreq_flags;/* held scan request params */
391	uint8_t			iv_scanreq_nssid;
392	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
393	/* sta-mode roaming state */
394	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
395	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
396
397	uint8_t			iv_bmissthreshold;
398	uint8_t			iv_bmiss_count;	/* current beacon miss count */
399	int			iv_bmiss_max;	/* max bmiss before scan */
400	uint16_t		iv_swbmiss_count;/* beacons in last period */
401	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
402	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
403
404	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
405	int			iv_ampdu_density;/* A-MPDU density */
406	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
407	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
408	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
409
410	uint32_t		*iv_aid_bitmap;	/* association id map */
411	uint16_t		iv_max_aid;
412	uint16_t		iv_sta_assoc;	/* stations associated */
413	uint16_t		iv_ps_sta;	/* stations in power save */
414	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
415	uint16_t		iv_txseq;	/* mcast xmit seq# space */
416	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
417	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
418	uint8_t			iv_dtim_period;	/* DTIM period */
419	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
420						/* set/unset aid pwrsav state */
421	uint8_t			iv_quiet;	/* Quiet Element */
422	uint8_t			iv_quiet_count;	/* constant count for Quiet Element */
423	uint8_t			iv_quiet_count_value;	/* variable count for Quiet Element */
424	uint8_t			iv_quiet_period;	/* period for Quiet Element */
425	uint16_t		iv_quiet_duration;	/* duration for Quiet Element */
426	uint16_t		iv_quiet_offset;	/* offset for Quiet Element */
427	int			iv_csa_count;	/* count for doing CSA */
428
429	struct ieee80211_node	*iv_bss;	/* information for this node */
430	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
431	uint16_t		iv_rtsthreshold;
432	uint16_t		iv_fragthreshold;
433	int			iv_inact_timer;	/* inactivity timer wait */
434	/* application-specified IE's to attach to mgt frames */
435	struct ieee80211_appie	*iv_appie_beacon;
436	struct ieee80211_appie	*iv_appie_probereq;
437	struct ieee80211_appie	*iv_appie_proberesp;
438	struct ieee80211_appie	*iv_appie_assocreq;
439	struct ieee80211_appie	*iv_appie_assocresp;
440	struct ieee80211_appie	*iv_appie_wpa;
441	uint8_t			*iv_wpa_ie;
442	uint8_t			*iv_rsn_ie;
443	uint16_t		iv_max_keyix;	/* max h/w key index */
444	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
445	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
446	int			(*iv_key_alloc)(struct ieee80211vap *,
447				    struct ieee80211_key *,
448				    ieee80211_keyix *, ieee80211_keyix *);
449	int			(*iv_key_delete)(struct ieee80211vap *,
450				    const struct ieee80211_key *);
451	int			(*iv_key_set)(struct ieee80211vap *,
452				    const struct ieee80211_key *,
453				    const uint8_t mac[IEEE80211_ADDR_LEN]);
454	void			(*iv_key_update_begin)(struct ieee80211vap *);
455	void			(*iv_key_update_end)(struct ieee80211vap *);
456
457	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
458	void			*iv_ec;		/* private auth state */
459
460	const struct ieee80211_aclator *iv_acl;	/* acl glue */
461	void			*iv_as;		/* private aclator state */
462
463	const struct ieee80211_ratectl *iv_rate;
464	void			*iv_rs;		/* private ratectl state */
465
466	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
467	struct ieee80211_mesh_state *iv_mesh;	/* MBSS state */
468	struct ieee80211_hwmp_state *iv_hwmp;	/* HWMP state */
469
470	/* operate-mode detach hook */
471	void			(*iv_opdetach)(struct ieee80211vap *);
472	/* receive processing */
473	int			(*iv_input)(struct ieee80211_node *,
474				    struct mbuf *,
475				    const struct ieee80211_rx_stats *,
476				    int, int);
477	void			(*iv_recv_mgmt)(struct ieee80211_node *,
478				    struct mbuf *, int,
479				    const struct ieee80211_rx_stats *,
480				    int, int);
481	void			(*iv_recv_ctl)(struct ieee80211_node *,
482				    struct mbuf *, int);
483	void			(*iv_deliver_data)(struct ieee80211vap *,
484				    struct ieee80211_node *, struct mbuf *);
485#if 0
486	/* send processing */
487	int			(*iv_send_mgmt)(struct ieee80211_node *,
488				     int, int);
489#endif
490	/* beacon miss processing */
491	void			(*iv_bmiss)(struct ieee80211vap *);
492	/* reset device state after 802.11 parameter/state change */
493	int			(*iv_reset)(struct ieee80211vap *, u_long);
494	/* [schedule] beacon frame update */
495	void			(*iv_update_beacon)(struct ieee80211vap *, int);
496	/* power save handling */
497	void			(*iv_update_ps)(struct ieee80211vap *, int);
498	int			(*iv_set_tim)(struct ieee80211_node *, int);
499	void			(*iv_node_ps)(struct ieee80211_node *, int);
500	void			(*iv_sta_ps)(struct ieee80211vap *, int);
501	void			(*iv_recv_pspoll)(struct ieee80211_node *,
502				    struct mbuf *);
503
504	/* state machine processing */
505	int			(*iv_newstate)(struct ieee80211vap *,
506				    enum ieee80211_state, int);
507	/* 802.3 output method for raw frame xmit */
508	int			(*iv_output)(struct ifnet *, struct mbuf *,
509				    const struct sockaddr *, struct route *);
510	uint64_t		iv_spare[6];
511};
512MALLOC_DECLARE(M_80211_VAP);
513
514#define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
515#define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
516
517/* ic_flags/iv_flags */
518#define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
519#define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
520#define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
521#define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
522/* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
523#define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
524#define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
525#define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
526#define	IEEE80211_F_ASCAN	0x00000100	/* STATUS: active scan */
527#define	IEEE80211_F_SIBSS	0x00000200	/* STATUS: start IBSS */
528/* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
529#define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
530#define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
531#define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
532#define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
533#define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
534#define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
535#define IEEE80211_F_TXPOW_FIXED	0x00010000	/* TX Power: fixed rate */
536#define	IEEE80211_F_IBSSON	0x00020000	/* CONF: IBSS creation enable */
537#define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
538#define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
539#define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
540#define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
541#define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
542#define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
543#define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
544#define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
545#define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
546#define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
547#define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
548#define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
549#define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
550#define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
551#define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
552
553#define	IEEE80211_F_BITS \
554	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN\11ASCAN\12SIBSS" \
555	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY\21TXPOW_FIXED" \
556	"\22IBSSON\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
557	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
558	"\37DOTH\40DWDS"
559
560/* Atheros protocol-specific flags */
561#define	IEEE80211_F_ATHEROS \
562	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
563/* Check if an Atheros capability was negotiated for use */
564#define	IEEE80211_ATH_CAP(vap, ni, bit) \
565	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
566
567/* ic_flags_ext/iv_flags_ext */
568#define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
569#define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
570/* 0x00000006 reserved */
571#define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
572#define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
573#define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
574#define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
575#define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
576#define	IEEE80211_FEXT_4ADDR	 0x00000100	/* CONF: apply 4-addr encap */
577#define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
578#define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
579#define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
580#define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
581#define	IEEE80211_FEXT_STATEWAIT 0x00002000	/* STATUS: awaiting state chg */
582#define	IEEE80211_FEXT_REINIT	 0x00004000	/* STATUS: INIT state first */
583#define	IEEE80211_FEXT_BPF	 0x00008000	/* STATUS: BPF tap present */
584/* NB: immutable: should be set only when creating a vap */
585#define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
586#define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
587#define	IEEE80211_FEXT_UNIQMAC	 0x00040000	/* CONF: user or computed mac */
588
589#define	IEEE80211_FEXT_BITS \
590	"\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
591	"\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
592	"\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC"
593
594/* ic_flags_ht/iv_flags_ht */
595#define	IEEE80211_FHT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
596#define	IEEE80211_FHT_GF  	 0x00040000	/* CONF: Greenfield enabled */
597#define	IEEE80211_FHT_HT	 0x00080000	/* CONF: HT supported */
598#define	IEEE80211_FHT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
599#define	IEEE80211_FHT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU rx supported */
600#define	IEEE80211_FHT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
601#define	IEEE80211_FHT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU rx supported */
602#define	IEEE80211_FHT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
603#define	IEEE80211_FHT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
604#define	IEEE80211_FHT_SHORTGI20	 0x04000000	/* CONF: short GI in HT20 */
605#define	IEEE80211_FHT_SHORTGI40	 0x08000000	/* CONF: short GI in HT40 */
606#define	IEEE80211_FHT_HTCOMPAT 	 0x10000000	/* CONF: HT vendor OUI's */
607#define	IEEE80211_FHT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
608#define	IEEE80211_FHT_STBC_TX 	 0x40000000	/* CONF: STBC tx enabled */
609#define	IEEE80211_FHT_STBC_RX 	 0x80000000	/* CONF: STBC rx enabled */
610
611#define	IEEE80211_FHT_BITS \
612	"\20\1NONHT_PR" \
613	"\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
614	"\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
615	"\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
616
617#define	IEEE80211_FVEN_BITS	"\20"
618
619/* ic_caps/iv_caps: device driver capabilities */
620/* 0x2e available */
621#define	IEEE80211_C_STA		0x00000001	/* CAPABILITY: STA available */
622#define	IEEE80211_C_8023ENCAP	0x00000002	/* CAPABILITY: 802.3 encap */
623#define	IEEE80211_C_FF		0x00000040	/* CAPABILITY: ATH FF avail */
624#define	IEEE80211_C_TURBOP	0x00000080	/* CAPABILITY: ATH Turbo avail*/
625#define	IEEE80211_C_IBSS	0x00000100	/* CAPABILITY: IBSS available */
626#define	IEEE80211_C_PMGT	0x00000200	/* CAPABILITY: Power mgmt */
627#define	IEEE80211_C_HOSTAP	0x00000400	/* CAPABILITY: HOSTAP avail */
628#define	IEEE80211_C_AHDEMO	0x00000800	/* CAPABILITY: Old Adhoc Demo */
629#define	IEEE80211_C_SWRETRY	0x00001000	/* CAPABILITY: sw tx retry */
630#define	IEEE80211_C_TXPMGT	0x00002000	/* CAPABILITY: tx power mgmt */
631#define	IEEE80211_C_SHSLOT	0x00004000	/* CAPABILITY: short slottime */
632#define	IEEE80211_C_SHPREAMBLE	0x00008000	/* CAPABILITY: short preamble */
633#define	IEEE80211_C_MONITOR	0x00010000	/* CAPABILITY: monitor mode */
634#define	IEEE80211_C_DFS		0x00020000	/* CAPABILITY: DFS/radar avail*/
635#define	IEEE80211_C_MBSS	0x00040000	/* CAPABILITY: MBSS available */
636#define	IEEE80211_C_SWSLEEP	0x00080000	/* CAPABILITY: do sleep here */
637/* 0x7c0000 available */
638#define	IEEE80211_C_WPA1	0x00800000	/* CAPABILITY: WPA1 avail */
639#define	IEEE80211_C_WPA2	0x01000000	/* CAPABILITY: WPA2 avail */
640#define	IEEE80211_C_WPA		0x01800000	/* CAPABILITY: WPA1+WPA2 avail*/
641#define	IEEE80211_C_BURST	0x02000000	/* CAPABILITY: frame bursting */
642#define	IEEE80211_C_WME		0x04000000	/* CAPABILITY: WME avail */
643#define	IEEE80211_C_WDS		0x08000000	/* CAPABILITY: 4-addr support */
644/* 0x10000000 reserved */
645#define	IEEE80211_C_BGSCAN	0x20000000	/* CAPABILITY: bg scanning */
646#define	IEEE80211_C_TXFRAG	0x40000000	/* CAPABILITY: tx fragments */
647#define	IEEE80211_C_TDMA	0x80000000	/* CAPABILITY: TDMA avail */
648/* XXX protection/barker? */
649
650#define	IEEE80211_C_OPMODE \
651	(IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \
652	 IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \
653	 IEEE80211_C_TDMA | IEEE80211_C_MBSS)
654
655#define	IEEE80211_C_BITS \
656	"\20\1STA\002803ENCAP\7FF\10TURBOP\11IBSS\12PMGT" \
657	"\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \
658	"\21MONITOR\22DFS\23MBSS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \
659	"\37TXFRAG\40TDMA"
660
661/*
662 * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities
663 *
664 * NB: the low 16-bits are the 802.11 definitions, the upper
665 *     16-bits are used to define s/w/driver capabilities.
666 */
667#define	IEEE80211_HTC_AMPDU	0x00010000	/* CAPABILITY: A-MPDU tx */
668#define	IEEE80211_HTC_AMSDU	0x00020000	/* CAPABILITY: A-MSDU tx */
669/* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
670#define	IEEE80211_HTC_HT	0x00040000	/* CAPABILITY: HT operation */
671#define	IEEE80211_HTC_SMPS	0x00080000	/* CAPABILITY: MIMO power save*/
672#define	IEEE80211_HTC_RIFS	0x00100000	/* CAPABILITY: RIFS support */
673#define	IEEE80211_HTC_RXUNEQUAL	0x00200000	/* CAPABILITY: RX unequal MCS */
674#define	IEEE80211_HTC_RXMCS32	0x00400000	/* CAPABILITY: MCS32 support */
675#define	IEEE80211_HTC_TXUNEQUAL	0x00800000	/* CAPABILITY: TX unequal MCS */
676#define	IEEE80211_HTC_TXMCS32	0x01000000	/* CAPABILITY: MCS32 suport */
677
678#define	IEEE80211_C_HTCAP_BITS \
679	"\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
680	"\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS"
681
682int	ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
683void	ieee80211_ifattach(struct ieee80211com *,
684		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
685void	ieee80211_ifdetach(struct ieee80211com *);
686int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
687		const char name[IFNAMSIZ], int unit,
688		enum ieee80211_opmode opmode, int flags,
689		const uint8_t bssid[IEEE80211_ADDR_LEN],
690		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
691int	ieee80211_vap_attach(struct ieee80211vap *,
692		ifm_change_cb_t, ifm_stat_cb_t);
693void	ieee80211_vap_detach(struct ieee80211vap *);
694const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
695		const struct ieee80211_channel *);
696void	ieee80211_announce(struct ieee80211com *);
697void	ieee80211_announce_channels(struct ieee80211com *);
698void	ieee80211_drain(struct ieee80211com *);
699void	ieee80211_media_init(struct ieee80211com *);
700struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
701int	ieee80211_media_change(struct ifnet *);
702void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
703int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
704int	ieee80211_rate2media(struct ieee80211com *, int,
705		enum ieee80211_phymode);
706int	ieee80211_media2rate(int);
707int	ieee80211_mhz2ieee(u_int, u_int);
708int	ieee80211_chan2ieee(struct ieee80211com *,
709		const struct ieee80211_channel *);
710u_int	ieee80211_ieee2mhz(u_int, u_int);
711struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
712		int freq, int flags);
713struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
714		int ieee, int flags);
715struct ieee80211_channel *ieee80211_lookup_channel_rxstatus(struct ieee80211vap *,
716		const struct ieee80211_rx_stats *);
717int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
718enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
719uint32_t ieee80211_mac_hash(const struct ieee80211com *,
720		const uint8_t addr[IEEE80211_ADDR_LEN]);
721char	ieee80211_channel_type_char(const struct ieee80211_channel *c);
722
723void	ieee80211_radiotap_attach(struct ieee80211com *,
724	    struct ieee80211_radiotap_header *th, int tlen,
725		uint32_t tx_radiotap,
726	    struct ieee80211_radiotap_header *rh, int rlen,
727		uint32_t rx_radiotap);
728void	ieee80211_radiotap_attachv(struct ieee80211com *,
729	    struct ieee80211_radiotap_header *th,
730	    int tlen, int n_tx_v, uint32_t tx_radiotap,
731	    struct ieee80211_radiotap_header *rh,
732	    int rlen, int n_rx_v, uint32_t rx_radiotap);
733void	ieee80211_radiotap_detach(struct ieee80211com *);
734void	ieee80211_radiotap_vattach(struct ieee80211vap *);
735void	ieee80211_radiotap_vdetach(struct ieee80211vap *);
736void	ieee80211_radiotap_chan_change(struct ieee80211com *);
737void	ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
738void	ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
739void	ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
740
741static __inline int
742ieee80211_radiotap_active(const struct ieee80211com *ic)
743{
744	return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
745}
746
747static __inline int
748ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
749{
750	return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
751	    vap->iv_ic->ic_montaps != 0;
752}
753
754/*
755 * Enqueue a task on the state thread.
756 */
757static __inline void
758ieee80211_runtask(struct ieee80211com *ic, struct task *task)
759{
760	taskqueue_enqueue(ic->ic_tq, task);
761}
762
763/*
764 * Wait for a queued task to complete.
765 */
766static __inline void
767ieee80211_draintask(struct ieee80211com *ic, struct task *task)
768{
769	taskqueue_drain(ic->ic_tq, task);
770}
771
772/*
773 * Key update synchronization methods.  XXX should not be visible.
774 */
775static __inline void
776ieee80211_key_update_begin(struct ieee80211vap *vap)
777{
778	vap->iv_key_update_begin(vap);
779}
780static __inline void
781ieee80211_key_update_end(struct ieee80211vap *vap)
782{
783	vap->iv_key_update_end(vap);
784}
785
786/*
787 * XXX these need to be here for IEEE80211_F_DATAPAD
788 */
789
790/*
791 * Return the space occupied by the 802.11 header and any
792 * padding required by the driver.  This works for a
793 * management or data frame.
794 */
795static __inline int
796ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
797{
798	int size = ieee80211_hdrsize(data);
799	if (ic->ic_flags & IEEE80211_F_DATAPAD)
800		size = roundup(size, sizeof(uint32_t));
801	return size;
802}
803
804/*
805 * Like ieee80211_hdrspace, but handles any type of frame.
806 */
807static __inline int
808ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
809{
810	int size = ieee80211_anyhdrsize(data);
811	if (ic->ic_flags & IEEE80211_F_DATAPAD)
812		size = roundup(size, sizeof(uint32_t));
813	return size;
814}
815
816/*
817 * Notify a vap that beacon state has been updated.
818 */
819static __inline void
820ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
821{
822	if (vap->iv_state == IEEE80211_S_RUN)
823		vap->iv_update_beacon(vap, what);
824}
825
826/*
827 * Calculate HT channel promotion flags for a channel.
828 * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
829 */
830static __inline int
831ieee80211_htchanflags(const struct ieee80211_channel *c)
832{
833	return IEEE80211_IS_CHAN_HT40(c) ?
834	    IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
835	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
836}
837
838/*
839 * Fetch the current TX power (cap) for the given node.
840 *
841 * This includes the node and ic/vap TX power limit as needed,
842 * but it doesn't take into account any per-rate limit.
843 */
844static __inline uint16_t
845ieee80211_get_node_txpower(struct ieee80211_node *ni)
846{
847	struct ieee80211com *ic = ni->ni_ic;
848	uint16_t txpower;
849
850	txpower = ni->ni_txpower;
851	txpower = MIN(txpower, ic->ic_txpowlimit);
852	if (ic->ic_curchan != NULL) {
853		txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
854		txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
855	}
856
857	return (txpower);
858}
859
860/*
861 * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
862 *
863 * The intent is that any problem in the net80211 layer can be
864 * diagnosed by inspecting the statistics (dumped by the wlanstats
865 * program) and/or the msgs generated by net80211.  Messages are
866 * broken into functional classes and can be controlled with the
867 * wlandebug program.  Certain of these msg groups are for facilities
868 * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
869 */
870#define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
871#define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
872#define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
873#define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
874#define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
875#define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
876#define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
877#define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
878#define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
879#define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
880#define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
881#define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
882#define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
883#define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
884#define	IEEE80211_MSG_HWMP	0x00020000	/* hybrid mesh protocol */
885#define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
886#define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
887#define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
888#define	IEEE80211_MSG_MESH	0x00002000	/* mesh networking */
889#define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
890#define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
891#define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
892#define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
893#define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
894#define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
895#define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
896#define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
897#define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
898#define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
899#define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
900#define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
901
902#define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
903
904#define	IEEE80211_MSG_BITS \
905	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
906	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
907	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
908	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
909
910#ifdef IEEE80211_DEBUG
911#define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
912#define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
913	if (ieee80211_msg(_vap, _m))					\
914		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
915} while (0)
916#define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
917	if (ieee80211_msg(_vap, _m))					\
918		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
919} while (0)
920#define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
921	if (ieee80211_msg(_vap, _m))					\
922		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
923} while (0)
924#define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
925	if (ieee80211_msg(_vap, _m))					\
926		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
927} while (0)
928void	ieee80211_note(const struct ieee80211vap *, const char *, ...);
929void	ieee80211_note_mac(const struct ieee80211vap *,
930		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
931void	ieee80211_note_frame(const struct ieee80211vap *,
932		const struct ieee80211_frame *, const char *, ...);
933#define	ieee80211_msg_debug(_vap) \
934	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
935#define	ieee80211_msg_dumppkts(_vap) \
936	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
937#define	ieee80211_msg_input(_vap) \
938	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
939#define	ieee80211_msg_radius(_vap) \
940	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
941#define	ieee80211_msg_dumpradius(_vap) \
942	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
943#define	ieee80211_msg_dumpradkeys(_vap) \
944	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
945#define	ieee80211_msg_scan(_vap) \
946	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
947#define	ieee80211_msg_assoc(_vap) \
948	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
949
950/*
951 * Emit a debug message about discarding a frame or information
952 * element.  One format is for extracting the mac address from
953 * the frame header; the other is for when a header is not
954 * available or otherwise appropriate.
955 */
956#define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
957	if ((_vap)->iv_debug & (_m))					\
958		ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
959} while (0)
960#define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
961	if ((_vap)->iv_debug & (_m))					\
962		ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
963} while (0)
964#define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
965	if ((_vap)->iv_debug & (_m))					\
966		ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
967} while (0)
968
969void ieee80211_discard_frame(const struct ieee80211vap *,
970	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
971void ieee80211_discard_ie(const struct ieee80211vap *,
972	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
973void ieee80211_discard_mac(const struct ieee80211vap *,
974	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
975	const char *fmt, ...);
976#else
977#define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
978#define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
979#define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
980#define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
981#define	ieee80211_msg_dumppkts(_vap)	0
982#define	ieee80211_msg(_vap, _m)		0
983
984#define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
985#define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
986#define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
987#endif
988
989#endif /* _NET80211_IEEE80211_VAR_H_ */
990