ieee80211_var.h revision 172211
1/*-
2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002-2007 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 172211 2007-09-17 19:07:24Z sam $
27 */
28#ifndef _NET80211_IEEE80211_VAR_H_
29#define _NET80211_IEEE80211_VAR_H_
30
31/*
32 * Definitions for IEEE 802.11 drivers.
33 */
34#define	IEEE80211_DEBUG
35#undef	IEEE80211_DEBUG_REFCNT			/* node refcnt stuff */
36
37/* NB: portability glue must go first */
38#ifdef __NetBSD__
39#include <net80211/ieee80211_netbsd.h>
40#elif __FreeBSD__
41#include <net80211/ieee80211_freebsd.h>
42#elif __linux__
43#include <net80211/ieee80211_linux.h>
44#else
45#error	"No support for your operating system!"
46#endif
47
48#include <net80211/_ieee80211.h>
49#include <net80211/ieee80211.h>
50#include <net80211/ieee80211_crypto.h>
51#include <net80211/ieee80211_ioctl.h>		/* for ieee80211_stats */
52#include <net80211/ieee80211_node.h>
53#include <net80211/ieee80211_power.h>
54#include <net80211/ieee80211_proto.h>
55#include <net80211/ieee80211_scan.h>
56
57#define	IEEE80211_TXPOWER_MAX	100	/* .5 dbM (XXX units?) */
58#define	IEEE80211_TXPOWER_MIN	0	/* kill radio */
59
60#define	IEEE80211_DTIM_DEFAULT	1	/* default DTIM period */
61#define	IEEE80211_BINTVAL_DEFAULT 100	/* default beacon interval (TU's) */
62
63#define	IEEE80211_BMISS_MAX	2	/* maximum consecutive bmiss allowed */
64#define	IEEE80211_HWBMISS_DEFAULT 7	/* h/w bmiss threshold (beacons) */
65
66#define	IEEE80211_BGSCAN_INTVAL_MIN	15	/* min bg scan intvl (secs) */
67#define	IEEE80211_BGSCAN_INTVAL_DEFAULT	(5*60)	/* default bg scan intvl */
68
69#define	IEEE80211_BGSCAN_IDLE_MIN	100	/* min idle time (ms) */
70#define	IEEE80211_BGSCAN_IDLE_DEFAULT	250	/* default idle time (ms) */
71
72#define	IEEE80211_SCAN_VALID_MIN	10	/* min scan valid time (secs) */
73#define	IEEE80211_SCAN_VALID_DEFAULT	60	/* default scan valid time */
74
75#define	IEEE80211_PS_SLEEP	0x1	/* STA is in power saving mode */
76#define	IEEE80211_PS_MAX_QUEUE	50	/* maximum saved packets */
77
78#define	IEEE80211_FIXED_RATE_NONE	-1
79#define	IEEE80211_MCAST_RATE_DEFAULT	(2*1)	/* default mcast rate (1M) */
80
81#define	IEEE80211_RTS_DEFAULT		IEEE80211_RTS_MAX
82#define	IEEE80211_FRAG_DEFAULT		IEEE80211_FRAG_MAX
83
84#define	IEEE80211_MS_TO_TU(x)	(((x) * 1000) / 1024)
85#define	IEEE80211_TU_TO_MS(x)	(((x) * 1024) / 1000)
86#define	IEEE80211_TU_TO_TICKS(x)(((x) * 1024 * hz) / (1000 * 1000))
87
88struct ieee80211_aclator;
89struct sysctl_ctx_list;
90
91struct ieee80211com {
92	SLIST_ENTRY(ieee80211com) ic_next;
93	struct ifnet		*ic_ifp;	/* associated device */
94	ieee80211_com_lock_t	ic_comlock;	/* state update lock */
95	ieee80211_beacon_lock_t	ic_beaconlock;	/* beacon update lock */
96	struct ieee80211_stats	ic_stats;	/* statistics */
97	struct sysctl_ctx_list	*ic_sysctl;	/* dynamic sysctl context */
98	uint32_t		ic_debug;	/* debug msg flags */
99	int			ic_vap;		/* virtual AP index */
100	int			ic_headroom;	/* driver tx headroom needs */
101	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
102	enum ieee80211_opmode	ic_opmode;	/* operation mode */
103	struct ifmedia		ic_media;	/* interface media config */
104	uint8_t			ic_myaddr[IEEE80211_ADDR_LEN];
105
106	uint32_t		ic_flags;	/* state flags */
107	uint32_t		ic_flags_ext;	/* extended state flags */
108	uint32_t		ic_caps;	/* capabilities */
109	uint8_t			ic_modecaps[2];	/* set of mode capabilities */
110	uint16_t		ic_curmode;	/* current mode */
111	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
112	uint16_t		ic_bintval;	/* beacon interval */
113	uint16_t		ic_lintval;	/* listen interval */
114	uint16_t		ic_holdover;	/* PM hold over duration */
115	uint16_t		ic_txpowlimit;	/* global tx power limit */
116	uint32_t		ic_htcaps;	/* HT capabilities */
117	int			ic_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
118	int			ic_ampdu_density;/* A-MPDU density */
119	int			ic_ampdu_limit;	/* A-MPDU tx limit (bytes) */
120	int			ic_amsdu_limit;	/* A-MSDU tx limit (bytes) */
121
122	/*
123	 * Channel state:
124	 *
125	 * ic_channels is the set of available channels for the device;
126	 *    it is setup by the driver
127	 * ic_nchans is the number of valid entries in ic_channels
128	 * ic_chan_avail is a bit vector of these channels used to check
129	 *    whether a channel is available w/o searching the channel table.
130	 * ic_chan_active is a (potentially) constrained subset of
131	 *    ic_chan_avail that reflects any mode setting or user-specified
132	 *    limit on the set of channels to use/scan
133	 * ic_curchan is the current channel the device is set to; it may
134	 *    be different from ic_bsschan when we are off-channel scanning
135	 *    or otherwise doing background work
136	 * ic_bsschan is the channel selected for operation; it may
137	 *    be undefined (IEEE80211_CHAN_ANYC)
138	 * ic_prevchan is a cached ``previous channel'' used to optimize
139	 *    lookups when switching back+forth between two channels
140	 *    (e.g. for dynamic turbo)
141	 */
142	int			ic_nchans;	/* # entries in ic_channels */
143	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX+1];
144	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
145	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
146	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
147	struct ieee80211_channel *ic_curchan;	/* current channel */
148	struct ieee80211_channel *ic_bsschan;	/* bss channel */
149	struct ieee80211_channel *ic_prevchan;	/* previous channel */
150	int			ic_countrycode;	/* ISO country code */
151	uint16_t		ic_regdomain;	/* regulatory domain */
152	uint8_t			ic_location;	/* unknown, indoor, outdoor */
153
154	struct ieee80211_scan_state *ic_scan;	/* scan state */
155	enum ieee80211_roamingmode ic_roaming;	/* roaming mode */
156	int			ic_lastdata;	/* time of last data frame */
157	int			ic_lastscan;	/* time last scan completed */
158	int			ic_des_nssid;	/* # desired ssids */
159	struct ieee80211_scan_ssid ic_des_ssid[1];/* desired ssid table */
160	uint8_t			ic_des_bssid[IEEE80211_ADDR_LEN];
161	struct ieee80211_channel *ic_des_chan;	/* desired channel */
162	int			ic_des_mode;	/* desired phymode */
163	u_int			ic_bgscanidle;	/* bg scan idle threshold */
164	u_int			ic_bgscanintvl;	/* bg scan min interval */
165	u_int			ic_scanvalid;	/* scan cache valid threshold */
166	struct ieee80211_roam	ic_roam;	/* sta-mode roaming state */
167
168	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
169
170	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
171	const struct ieee80211_aclator *ic_acl;	/* aclator glue */
172	void			*ic_as;		/* private aclator state */
173
174	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
175	uint16_t		ic_nonerpsta;	/* # non-ERP stations */
176	uint16_t		ic_longslotsta;	/* # long slot time stations */
177	uint16_t		ic_sta_assoc;	/* stations associated */
178	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
179	int			ic_lastnonerp;	/* last time non-ERP sta noted*/
180
181	struct ifqueue		ic_mgtq;
182	enum ieee80211_state	ic_state;	/* 802.11 state */
183	struct callout		ic_mgtsend;	/* mgmt frame response timer */
184	uint32_t		*ic_aid_bitmap;	/* association id map */
185	uint16_t		ic_max_aid;
186	uint16_t		ic_ps_sta;	/* stations in power save */
187	uint16_t		ic_ps_pending;	/* ps sta's w/ pending frames */
188	uint8_t			*ic_tim_bitmap;	/* power-save stations w/ data*/
189	uint16_t		ic_tim_len;	/* ic_tim_bitmap size (bytes) */
190	uint8_t			ic_dtim_period;	/* DTIM period */
191	uint8_t			ic_dtim_count;	/* DTIM count for last bcn */
192	struct bpf_if		*ic_rawbpf;	/* packet filter structure */
193	struct ieee80211_node	*ic_bss;	/* information for this node */
194	int			ic_fixed_rate;	/* 802.11 rate or -1 */
195	int			ic_mcast_rate;	/* rate for mcast frames */
196	uint16_t		ic_rtsthreshold;
197	uint16_t		ic_fragthreshold;
198	uint8_t			ic_bmissthreshold;
199	uint8_t			ic_bmiss_count;	/* current beacon miss count */
200	int			ic_bmiss_max;	/* max bmiss before scan */
201	uint16_t		ic_swbmiss_count;/* beacons in last period */
202	uint16_t		ic_swbmiss_period;/* s/w bmiss period */
203	struct callout		ic_swbmiss;	/* s/w beacon miss timer */
204
205	uint16_t		ic_txmin;	/* min tx retry count */
206	uint16_t		ic_txmax;	/* max tx retry count */
207	uint16_t		ic_txlifetime;	/* tx lifetime */
208	struct callout		ic_inact;	/* inactivity timer wait */
209	void			*ic_opt_ie;	/* user-specified IE's */
210	uint16_t		ic_opt_ie_len;	/* length of ni_opt_ie */
211	int			ic_inact_init;	/* initial setting */
212	int			ic_inact_auth;	/* auth but not assoc setting */
213	int			ic_inact_run;	/* authorized setting */
214	int			ic_inact_probe;	/* inactive probe time */
215
216	/*
217	 * Cipher state/configuration.
218	 */
219	struct ieee80211_crypto_state ic_crypto;
220#define	ic_nw_keys	ic_crypto.cs_nw_keys	/* XXX compatibility */
221#define	ic_def_txkey	ic_crypto.cs_def_txkey	/* XXX compatibility */
222	/*
223	 * 802.1x glue.  When an authenticator attaches it
224	 * fills in this section.  We assume that when ic_ec
225	 * is setup that the methods are safe to call.
226	 */
227	const struct ieee80211_authenticator *ic_auth;
228	struct eapolcom		*ic_ec;
229
230	/* send/recv 802.11 management frame */
231	int			(*ic_send_mgmt)(struct ieee80211com *,
232				    struct ieee80211_node *, int, int);
233	void			(*ic_recv_mgmt)(struct ieee80211com *,
234				    struct mbuf *, struct ieee80211_node *,
235				    int, int, int, uint32_t);
236	/* send raw 802.11 frame */
237	int			(*ic_raw_xmit)(struct ieee80211_node *,
238				    struct mbuf *,
239				    const struct ieee80211_bpf_params *);
240	/* reset device state after 802.11 parameter/state change */
241	int			(*ic_reset)(struct ifnet *);
242	/* [schedule] beacon frame update */
243	void			(*ic_update_beacon)(struct ieee80211com *, int);
244	/* update device state for 802.11 slot time change */
245	void			(*ic_updateslot)(struct ifnet *);
246	/* new station association callback/notification */
247	void			(*ic_newassoc)(struct ieee80211_node *, int);
248	/* node state management */
249	struct ieee80211_node	*(*ic_node_alloc)(struct ieee80211_node_table*);
250	void			(*ic_node_free)(struct ieee80211_node *);
251	void			(*ic_node_cleanup)(struct ieee80211_node *);
252	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
253	void			(*ic_node_getsignal)(const struct ieee80211_node*,
254				    int8_t *, int8_t *);
255	/* scanning support */
256	void			(*ic_scan_start)(struct ieee80211com *);
257	void			(*ic_scan_end)(struct ieee80211com *);
258	void			(*ic_set_channel)(struct ieee80211com *);
259	void			(*ic_scan_curchan)(struct ieee80211com *,
260				    unsigned long);
261	void			(*ic_scan_mindwell)(struct ieee80211com *);
262	/* per-vap eventually... */
263	int			(*ic_newstate)(struct ieee80211com *,
264				    enum ieee80211_state, int);
265	void			(*ic_set_tim)(struct ieee80211_node *, int);
266
267	/*
268	 * 802.11n ADDBA support.  A simple/generic implementation
269	 * of A-MPDU tx aggregation is provided; the driver may
270	 * override these methods to provide their own support.
271	 * A-MPDU rx re-ordering happens automatically if the
272	 * driver passes out-of-order frames to ieee80211_input
273	 * from an assocated HT station.
274	 */
275	void			(*ic_recv_action)(struct ieee80211_node *,
276				    const uint8_t *frm, const uint8_t *efrm);
277	int			(*ic_send_action)(struct ieee80211_node *,
278				    int category, int action,
279				    uint16_t args[4]);
280	/* start/stop doing A-MPDU tx aggregation for a station */
281	int			(*ic_addba_request)(struct ieee80211_node *,
282				    struct ieee80211_tx_ampdu *,
283				    int dialogtoken, int baparamset,
284				    int batimeout);
285	int			(*ic_addba_response)(struct ieee80211_node *,
286				    struct ieee80211_tx_ampdu *,
287				    int status, int baparamset, int batimeout);
288	void			(*ic_addba_stop)(struct ieee80211_node *,
289				    struct ieee80211_tx_ampdu *);
290};
291
292#define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
293#define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
294
295/* ic_flags */
296/* NB: bits 0x4c available */
297#define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
298#define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
299#define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
300#define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
301/* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
302#define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
303#define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
304#define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
305#define	IEEE80211_F_ASCAN	0x00000100	/* STATUS: active scan */
306#define	IEEE80211_F_SIBSS	0x00000200	/* STATUS: start IBSS */
307/* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
308#define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
309#define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
310#define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
311#define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
312#define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
313#define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
314#define IEEE80211_F_TXPOW_FIXED	0x00010000	/* TX Power: fixed rate */
315#define	IEEE80211_F_IBSSON	0x00020000	/* CONF: IBSS creation enable */
316#define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
317#define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
318#define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
319#define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
320#define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
321#define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
322#define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
323#define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
324#define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
325#define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
326#define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
327#define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
328
329/* Atheros protocol-specific flags */
330#define	IEEE80211_F_ATHEROS \
331	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
332/* Check if an Atheros capability was negotiated for use */
333#define	IEEE80211_ATH_CAP(ic, ni, bit) \
334	((ic)->ic_flags & (ni)->ni_ath_flags & (bit))
335
336/* ic_flags_ext */
337#define	IEEE80211_FEXT_WDS	 0x00000001	/* CONF: 4 addr allowed */
338#define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
339/* 0x00000006 reserved */
340#define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
341#define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
342#define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
343#define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
344#define	IEEE80211_FEXT_HT	 0x00080000	/* CONF: HT supported */
345#define	IEEE80211_FEXT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
346#define	IEEE80211_FEXT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU tx supported */
347#define	IEEE80211_FEXT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
348#define	IEEE80211_FEXT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU tx supported */
349#define	IEEE80211_FEXT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
350#define	IEEE80211_FEXT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
351#define	IEEE80211_FEXT_SHORTGI20 0x04000000	/* CONF: short GI in HT20 */
352#define	IEEE80211_FEXT_SHORTGI40 0x08000000	/* CONF: short GI in HT40 */
353#define	IEEE80211_FEXT_HTCOMPAT  0x10000000	/* CONF: HT vendor OUI's */
354
355/* ic_caps */
356#define	IEEE80211_C_WEP		0x00000001	/* CAPABILITY: WEP available */
357#define	IEEE80211_C_TKIP	0x00000002	/* CAPABILITY: TKIP available */
358#define	IEEE80211_C_AES		0x00000004	/* CAPABILITY: AES OCB avail */
359#define	IEEE80211_C_AES_CCM	0x00000008	/* CAPABILITY: AES CCM avail */
360#define	IEEE80211_C_CKIP	0x00000020	/* CAPABILITY: CKIP available */
361#define	IEEE80211_C_FF		0x00000040	/* CAPABILITY: ATH FF avail */
362#define	IEEE80211_C_TURBOP	0x00000080	/* CAPABILITY: ATH Turbo avail*/
363#define	IEEE80211_C_IBSS	0x00000100	/* CAPABILITY: IBSS available */
364#define	IEEE80211_C_PMGT	0x00000200	/* CAPABILITY: Power mgmt */
365#define	IEEE80211_C_HOSTAP	0x00000400	/* CAPABILITY: HOSTAP avail */
366#define	IEEE80211_C_AHDEMO	0x00000800	/* CAPABILITY: Old Adhoc Demo */
367#define	IEEE80211_C_SWRETRY	0x00001000	/* CAPABILITY: sw tx retry */
368#define	IEEE80211_C_TXPMGT	0x00002000	/* CAPABILITY: tx power mgmt */
369#define	IEEE80211_C_SHSLOT	0x00004000	/* CAPABILITY: short slottime */
370#define	IEEE80211_C_SHPREAMBLE	0x00008000	/* CAPABILITY: short preamble */
371#define	IEEE80211_C_MONITOR	0x00010000	/* CAPABILITY: monitor mode */
372#define	IEEE80211_C_TKIPMIC	0x00020000	/* CAPABILITY: TKIP MIC avail */
373#define	IEEE80211_C_WPA1	0x00800000	/* CAPABILITY: WPA1 avail */
374#define	IEEE80211_C_WPA2	0x01000000	/* CAPABILITY: WPA2 avail */
375#define	IEEE80211_C_WPA		0x01800000	/* CAPABILITY: WPA1+WPA2 avail*/
376#define	IEEE80211_C_BURST	0x02000000	/* CAPABILITY: frame bursting */
377#define	IEEE80211_C_WME		0x04000000	/* CAPABILITY: WME avail */
378#define	IEEE80211_C_WDS		0x08000000	/* CAPABILITY: 4-addr support */
379/* 0x10000000 reserved */
380#define	IEEE80211_C_BGSCAN	0x20000000	/* CAPABILITY: bg scanning */
381#define	IEEE80211_C_TXFRAG	0x40000000	/* CAPABILITY: tx fragments */
382/* XXX protection/barker? */
383
384#define	IEEE80211_C_CRYPTO	0x0000002f	/* CAPABILITY: crypto alg's */
385
386/*
387 * ic_htcaps: HT-specific device/driver capabilities
388 *
389 * NB: the low 16-bits are the 802.11 definitions, the upper
390 *     16-bits are used to define s/w/driver capabilities.
391 */
392#define	IEEE80211_HTC_AMPDU	0x00010000	/* CAPABILITY: A-MPDU tx */
393#define	IEEE80211_HTC_AMSDU	0x00020000	/* CAPABILITY: A-MSDU tx */
394
395void	ieee80211_ifattach(struct ieee80211com *);
396void	ieee80211_ifdetach(struct ieee80211com *);
397const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
398		const struct ieee80211_channel *);
399void	ieee80211_announce(struct ieee80211com *);
400void	ieee80211_announce_channels(struct ieee80211com *);
401void	ieee80211_media_init(struct ieee80211com *,
402		ifm_change_cb_t, ifm_stat_cb_t);
403struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
404int	ieee80211_media_change(struct ifnet *);
405void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
406int	ieee80211_ioctl(struct ieee80211com *, u_long, caddr_t);
407int	ieee80211_cfgget(struct ieee80211com *, u_long, caddr_t);
408int	ieee80211_cfgset(struct ieee80211com *, u_long, caddr_t);
409int	ieee80211_rate2media(struct ieee80211com *, int,
410		enum ieee80211_phymode);
411int	ieee80211_media2rate(int);
412int	ieee80211_mhz2ieee(u_int, u_int);
413int	ieee80211_chan2ieee(struct ieee80211com *,
414		const struct ieee80211_channel *);
415u_int	ieee80211_ieee2mhz(u_int, u_int);
416struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
417		int freq, int flags);
418int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
419enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
420
421/*
422 * Key update synchronization methods.  XXX should not be visible.
423 */
424static __inline void
425ieee80211_key_update_begin(struct ieee80211com *ic)
426{
427	ic->ic_crypto.cs_key_update_begin(ic);
428}
429static __inline void
430ieee80211_key_update_end(struct ieee80211com *ic)
431{
432	ic->ic_crypto.cs_key_update_end(ic);
433}
434
435/*
436 * XXX these need to be here for IEEE80211_F_DATAPAD
437 */
438
439/*
440 * Return the space occupied by the 802.11 header and any
441 * padding required by the driver.  This works for a
442 * management or data frame.
443 */
444static __inline int
445ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
446{
447	int size = ieee80211_hdrsize(data);
448	if (ic->ic_flags & IEEE80211_F_DATAPAD)
449		size = roundup(size, sizeof(uint32_t));
450	return size;
451}
452
453/*
454 * Like ieee80211_hdrspace, but handles any type of frame.
455 */
456static __inline int
457ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
458{
459	int size = ieee80211_anyhdrsize(data);
460	if (ic->ic_flags & IEEE80211_F_DATAPAD)
461		size = roundup(size, sizeof(uint32_t));
462	return size;
463}
464
465/*
466 * Notify a driver that beacon state has been updated.
467 */
468static __inline void
469ieee80211_beacon_notify(struct ieee80211com *ic, int what)
470{
471	if (ic->ic_state == IEEE80211_S_RUN)
472		ic->ic_update_beacon(ic, what);
473}
474
475#define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
476#define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
477#define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
478#define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
479#define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
480#define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
481#define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
482#define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
483#define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
484#define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
485#define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
486#define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
487#define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
488#define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
489#define	IEEE80211_MSG_DOT1X	0x00020000	/* 802.1x authenticator */
490#define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
491#define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
492#define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
493#define	IEEE80211_MSG_RADKEYS	0x00002000	/* dump 802.1x keys */
494#define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
495#define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
496#define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
497#define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
498#define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
499#define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
500#define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
501#define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
502#define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
503
504#define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
505
506#ifdef IEEE80211_DEBUG
507#define	ieee80211_msg(_ic, _m)	((_ic)->ic_debug & (_m))
508#define	IEEE80211_DPRINTF(_ic, _m, _fmt, ...) do {			\
509	if (ieee80211_msg(_ic, _m))					\
510		ieee80211_note(_ic, _fmt, __VA_ARGS__);		\
511} while (0)
512#define	IEEE80211_NOTE(_ic, _m, _ni, _fmt, ...) do {			\
513	if (ieee80211_msg(_ic, _m))					\
514		ieee80211_note_mac(_ic, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
515} while (0)
516#define	IEEE80211_NOTE_MAC(_ic, _m, _mac, _fmt, ...) do {		\
517	if (ieee80211_msg(_ic, _m))					\
518		ieee80211_note_mac(_ic, _mac, _fmt, __VA_ARGS__);	\
519} while (0)
520#define	IEEE80211_NOTE_FRAME(_ic, _m, _wh, _fmt, ...) do {		\
521	if (ieee80211_msg(_ic, _m))					\
522		ieee80211_note_frame(_ic, _wh, _fmt, __VA_ARGS__);	\
523} while (0)
524void	ieee80211_note(struct ieee80211com *ic, const char *fmt, ...);
525void	ieee80211_note_mac(struct ieee80211com *ic,
526		const uint8_t mac[IEEE80211_ADDR_LEN], const char *fmt, ...);
527void	ieee80211_note_frame(struct ieee80211com *ic,
528		const struct ieee80211_frame *wh, const char *fmt, ...);
529#define	ieee80211_msg_debug(_ic) \
530	((_ic)->ic_debug & IEEE80211_MSG_DEBUG)
531#define	ieee80211_msg_dumppkts(_ic) \
532	((_ic)->ic_debug & IEEE80211_MSG_DUMPPKTS)
533#define	ieee80211_msg_input(_ic) \
534	((_ic)->ic_debug & IEEE80211_MSG_INPUT)
535#define	ieee80211_msg_radius(_ic) \
536	((_ic)->ic_debug & IEEE80211_MSG_RADIUS)
537#define	ieee80211_msg_dumpradius(_ic) \
538	((_ic)->ic_debug & IEEE80211_MSG_RADDUMP)
539#define	ieee80211_msg_dumpradkeys(_ic) \
540	((_ic)->ic_debug & IEEE80211_MSG_RADKEYS)
541#define	ieee80211_msg_scan(_ic) \
542	((_ic)->ic_debug & IEEE80211_MSG_SCAN)
543#define	ieee80211_msg_assoc(_ic) \
544	((_ic)->ic_debug & IEEE80211_MSG_ASSOC)
545
546/*
547 * Emit a debug message about discarding a frame or information
548 * element.  One format is for extracting the mac address from
549 * the frame header; the other is for when a header is not
550 * available or otherwise appropriate.
551 */
552#define	IEEE80211_DISCARD(_ic, _m, _wh, _type, _fmt, ...) do {		\
553	if ((_ic)->ic_debug & (_m))					\
554		ieee80211_discard_frame(_ic, _wh, _type, _fmt, __VA_ARGS__);\
555} while (0)
556#define	IEEE80211_DISCARD_IE(_ic, _m, _wh, _type, _fmt, ...) do {	\
557	if ((_ic)->ic_debug & (_m))					\
558		ieee80211_discard_ie(_ic, _wh, _type, _fmt, __VA_ARGS__);\
559} while (0)
560#define	IEEE80211_DISCARD_MAC(_ic, _m, _mac, _type, _fmt, ...) do {	\
561	if ((_ic)->ic_debug & (_m))					\
562		ieee80211_discard_mac(_ic, _mac, _type, _fmt, __VA_ARGS__);\
563} while (0)
564
565void ieee80211_discard_frame(struct ieee80211com *,
566	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
567void ieee80211_discard_ie(struct ieee80211com *,
568	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
569void ieee80211_discard_mac(struct ieee80211com *,
570	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
571	const char *fmt, ...);
572#else
573#define	IEEE80211_DPRINTF(_ic, _m, _fmt, ...)
574#define	IEEE80211_NOTE(_ic, _m, _ni, _fmt, ...)
575#define	IEEE80211_NOTE_FRAME(_ic, _m, _wh, _fmt, ...)
576#define	IEEE80211_NOTE_MAC(_ic, _m, _mac, _fmt, ...)
577#define	ieee80211_msg_dumppkts(_ic)	0
578#define	ieee80211_msg(_ic, _m)		0
579
580#define	IEEE80211_DISCARD(_ic, _m, _wh, _type, _fmt, ...)
581#define	IEEE80211_DISCARD_IE(_ic, _m, _wh, _type, _fmt, ...)
582#define	IEEE80211_DISCARD_MAC(_ic, _m, _mac, _type, _fmt, ...)
583#endif
584
585#endif /* _NET80211_IEEE80211_VAR_H_ */
586