xref: /freebsd/sys/net80211/ieee80211_var.h (revision 282a3889ebf826db9839be296ff1dd903f6d6d6e)
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  * $FreeBSD$
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 
88 struct ieee80211_aclator;
89 struct sysctl_ctx_list;
90 
91 struct 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 
179 	struct ifqueue		ic_mgtq;
180 	enum ieee80211_state	ic_state;	/* 802.11 state */
181 	struct callout		ic_mgtsend;	/* mgmt frame response timer */
182 	uint32_t		*ic_aid_bitmap;	/* association id map */
183 	uint16_t		ic_max_aid;
184 	uint16_t		ic_ps_sta;	/* stations in power save */
185 	uint16_t		ic_ps_pending;	/* ps sta's w/ pending frames */
186 	uint8_t			*ic_tim_bitmap;	/* power-save stations w/ data*/
187 	uint16_t		ic_tim_len;	/* ic_tim_bitmap size (bytes) */
188 	uint8_t			ic_dtim_period;	/* DTIM period */
189 	uint8_t			ic_dtim_count;	/* DTIM count for last bcn */
190 	struct bpf_if		*ic_rawbpf;	/* packet filter structure */
191 	struct ieee80211_node	*ic_bss;	/* information for this node */
192 	int			ic_fixed_rate;	/* 802.11 rate or -1 */
193 	int			ic_mcast_rate;	/* rate for mcast frames */
194 	uint16_t		ic_rtsthreshold;
195 	uint16_t		ic_fragthreshold;
196 	uint8_t			ic_bmissthreshold;
197 	uint8_t			ic_bmiss_count;	/* current beacon miss count */
198 	int			ic_bmiss_max;	/* max bmiss before scan */
199 	uint16_t		ic_swbmiss_count;/* beacons in last period */
200 	uint16_t		ic_swbmiss_period;/* s/w bmiss period */
201 	struct callout		ic_swbmiss;	/* s/w beacon miss timer */
202 
203 	uint16_t		ic_txmin;	/* min tx retry count */
204 	uint16_t		ic_txmax;	/* max tx retry count */
205 	uint16_t		ic_txlifetime;	/* tx lifetime */
206 	struct callout		ic_inact;	/* inactivity timer wait */
207 	void			*ic_opt_ie;	/* user-specified IE's */
208 	uint16_t		ic_opt_ie_len;	/* length of ni_opt_ie */
209 	int			ic_inact_init;	/* initial setting */
210 	int			ic_inact_auth;	/* auth but not assoc setting */
211 	int			ic_inact_run;	/* authorized setting */
212 	int			ic_inact_probe;	/* inactive probe time */
213 
214 	/*
215 	 * Cipher state/configuration.
216 	 */
217 	struct ieee80211_crypto_state ic_crypto;
218 #define	ic_nw_keys	ic_crypto.cs_nw_keys	/* XXX compatibility */
219 #define	ic_def_txkey	ic_crypto.cs_def_txkey	/* XXX compatibility */
220 	/*
221 	 * 802.1x glue.  When an authenticator attaches it
222 	 * fills in this section.  We assume that when ic_ec
223 	 * is setup that the methods are safe to call.
224 	 */
225 	const struct ieee80211_authenticator *ic_auth;
226 	struct eapolcom		*ic_ec;
227 
228 	/* send/recv 802.11 management frame */
229 	int			(*ic_send_mgmt)(struct ieee80211com *,
230 				    struct ieee80211_node *, int, int);
231 	void			(*ic_recv_mgmt)(struct ieee80211com *,
232 				    struct mbuf *, struct ieee80211_node *,
233 				    int, int, int, uint32_t);
234 	/* send raw 802.11 frame */
235 	int			(*ic_raw_xmit)(struct ieee80211_node *,
236 				    struct mbuf *,
237 				    const struct ieee80211_bpf_params *);
238 	/* reset device state after 802.11 parameter/state change */
239 	int			(*ic_reset)(struct ifnet *);
240 	/* update device state for 802.11 slot time change */
241 	void			(*ic_updateslot)(struct ifnet *);
242 	/* new station association callback/notification */
243 	void			(*ic_newassoc)(struct ieee80211_node *, int);
244 	/* node state management */
245 	struct ieee80211_node	*(*ic_node_alloc)(struct ieee80211_node_table*);
246 	void			(*ic_node_free)(struct ieee80211_node *);
247 	void			(*ic_node_cleanup)(struct ieee80211_node *);
248 	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
249 	void			(*ic_node_getsignal)(const struct ieee80211_node*,
250 				    int8_t *, int8_t *);
251 	/* scanning support */
252 	void			(*ic_scan_start)(struct ieee80211com *);
253 	void			(*ic_scan_end)(struct ieee80211com *);
254 	void			(*ic_set_channel)(struct ieee80211com *);
255 	void			(*ic_scan_curchan)(struct ieee80211com *,
256 				    unsigned long);
257 	void			(*ic_scan_mindwell)(struct ieee80211com *);
258 	/* per-vap eventually... */
259 	int			(*ic_newstate)(struct ieee80211com *,
260 				    enum ieee80211_state, int);
261 	void			(*ic_set_tim)(struct ieee80211_node *, int);
262 
263 	/*
264 	 * 802.11n ADDBA support.  A simple/generic implementation
265 	 * of A-MPDU tx aggregation is provided; the driver may
266 	 * override these methods to provide their own support.
267 	 * A-MPDU rx re-ordering happens automatically if the
268 	 * driver passes out-of-order frames to ieee80211_input
269 	 * from an assocated HT station.
270 	 */
271 	void			(*ic_recv_action)(struct ieee80211_node *,
272 				    const uint8_t *frm, const uint8_t *efrm);
273 	int			(*ic_send_action)(struct ieee80211_node *,
274 				    int category, int action,
275 				    uint16_t args[4]);
276 	/* start/stop doing A-MPDU tx aggregation for a station */
277 	int			(*ic_addba_request)(struct ieee80211_node *,
278 				    struct ieee80211_tx_ampdu *,
279 				    int dialogtoken, int baparamset,
280 				    int batimeout);
281 	int			(*ic_addba_response)(struct ieee80211_node *,
282 				    struct ieee80211_tx_ampdu *,
283 				    int status, int baparamset, int batimeout);
284 	void			(*ic_addba_stop)(struct ieee80211_node *,
285 				    struct ieee80211_tx_ampdu *);
286 };
287 
288 #define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
289 #define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
290 
291 /* ic_flags */
292 /* NB: bits 0x4c available */
293 #define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
294 #define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
295 #define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
296 #define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
297 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
298 #define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
299 #define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
300 #define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
301 #define	IEEE80211_F_ASCAN	0x00000100	/* STATUS: active scan */
302 #define	IEEE80211_F_SIBSS	0x00000200	/* STATUS: start IBSS */
303 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
304 #define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
305 #define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
306 #define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
307 #define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
308 #define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
309 #define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
310 #define IEEE80211_F_TXPOW_FIXED	0x00010000	/* TX Power: fixed rate */
311 #define	IEEE80211_F_IBSSON	0x00020000	/* CONF: IBSS creation enable */
312 #define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
313 #define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
314 #define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
315 #define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
316 #define	IEEE80211_F_TIMUPDATE	0x00400000	/* STATUS: update beacon tim */
317 #define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
318 #define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
319 #define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
320 #define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
321 #define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
322 #define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
323 #define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
324 #define	IEEE80211_F_WMEUPDATE	0x20000000	/* STATUS: update beacon wme */
325 #define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
326 
327 /* Atheros protocol-specific flags */
328 #define	IEEE80211_F_ATHEROS \
329 	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
330 /* Check if an Atheros capability was negotiated for use */
331 #define	IEEE80211_ATH_CAP(ic, ni, bit) \
332 	((ic)->ic_flags & (ni)->ni_ath_flags & (bit))
333 
334 /* ic_flags_ext */
335 #define	IEEE80211_FEXT_WDS	 0x00000001	/* CONF: 4 addr allowed */
336 /* 0x00000006 reserved */
337 #define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
338 #define	IEEE80211_FEXT_ERPUPDATE 0x00000200	/* STATUS: update ERP element */
339 #define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
340 #define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
341 #define	IEEE80211_FEXT_HT	 0x00080000	/* CONF: HT supported */
342 #define	IEEE80211_FEXT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
343 #define	IEEE80211_FEXT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU tx supported */
344 #define	IEEE80211_FEXT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
345 #define	IEEE80211_FEXT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU tx supported */
346 #define	IEEE80211_FEXT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
347 #define	IEEE80211_FEXT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
348 #define	IEEE80211_FEXT_SHORTGI20 0x04000000	/* CONF: short GI in HT20 */
349 #define	IEEE80211_FEXT_SHORTGI40 0x08000000	/* CONF: short GI in HT40 */
350 #define	IEEE80211_FEXT_HTCOMPAT  0x10000000	/* CONF: HT vendor OUI's */
351 
352 /* ic_caps */
353 #define	IEEE80211_C_WEP		0x00000001	/* CAPABILITY: WEP available */
354 #define	IEEE80211_C_TKIP	0x00000002	/* CAPABILITY: TKIP available */
355 #define	IEEE80211_C_AES		0x00000004	/* CAPABILITY: AES OCB avail */
356 #define	IEEE80211_C_AES_CCM	0x00000008	/* CAPABILITY: AES CCM avail */
357 #define	IEEE80211_C_CKIP	0x00000020	/* CAPABILITY: CKIP available */
358 #define	IEEE80211_C_FF		0x00000040	/* CAPABILITY: ATH FF avail */
359 #define	IEEE80211_C_TURBOP	0x00000080	/* CAPABILITY: ATH Turbo avail*/
360 #define	IEEE80211_C_IBSS	0x00000100	/* CAPABILITY: IBSS available */
361 #define	IEEE80211_C_PMGT	0x00000200	/* CAPABILITY: Power mgmt */
362 #define	IEEE80211_C_HOSTAP	0x00000400	/* CAPABILITY: HOSTAP avail */
363 #define	IEEE80211_C_AHDEMO	0x00000800	/* CAPABILITY: Old Adhoc Demo */
364 #define	IEEE80211_C_SWRETRY	0x00001000	/* CAPABILITY: sw tx retry */
365 #define	IEEE80211_C_TXPMGT	0x00002000	/* CAPABILITY: tx power mgmt */
366 #define	IEEE80211_C_SHSLOT	0x00004000	/* CAPABILITY: short slottime */
367 #define	IEEE80211_C_SHPREAMBLE	0x00008000	/* CAPABILITY: short preamble */
368 #define	IEEE80211_C_MONITOR	0x00010000	/* CAPABILITY: monitor mode */
369 #define	IEEE80211_C_TKIPMIC	0x00020000	/* CAPABILITY: TKIP MIC avail */
370 #define	IEEE80211_C_WPA1	0x00800000	/* CAPABILITY: WPA1 avail */
371 #define	IEEE80211_C_WPA2	0x01000000	/* CAPABILITY: WPA2 avail */
372 #define	IEEE80211_C_WPA		0x01800000	/* CAPABILITY: WPA1+WPA2 avail*/
373 #define	IEEE80211_C_BURST	0x02000000	/* CAPABILITY: frame bursting */
374 #define	IEEE80211_C_WME		0x04000000	/* CAPABILITY: WME avail */
375 #define	IEEE80211_C_WDS		0x08000000	/* CAPABILITY: 4-addr support */
376 /* 0x10000000 reserved */
377 #define	IEEE80211_C_BGSCAN	0x20000000	/* CAPABILITY: bg scanning */
378 #define	IEEE80211_C_TXFRAG	0x40000000	/* CAPABILITY: tx fragments */
379 /* XXX protection/barker? */
380 
381 #define	IEEE80211_C_CRYPTO	0x0000002f	/* CAPABILITY: crypto alg's */
382 
383 /*
384  * ic_htcaps: HT-specific device/driver capabilities
385  *
386  * NB: the low 16-bits are the 802.11 definitions, the upper
387  *     16-bits are used to define s/w/driver capabilities.
388  */
389 #define	IEEE80211_HTC_AMPDU	0x00010000	/* CAPABILITY: A-MPDU tx */
390 #define	IEEE80211_HTC_AMSDU	0x00020000	/* CAPABILITY: A-MSDU tx */
391 
392 void	ieee80211_ifattach(struct ieee80211com *);
393 void	ieee80211_ifdetach(struct ieee80211com *);
394 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
395 		const struct ieee80211_channel *);
396 void	ieee80211_announce(struct ieee80211com *);
397 void	ieee80211_announce_channels(struct ieee80211com *);
398 void	ieee80211_media_init(struct ieee80211com *,
399 		ifm_change_cb_t, ifm_stat_cb_t);
400 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
401 int	ieee80211_media_change(struct ifnet *);
402 void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
403 int	ieee80211_ioctl(struct ieee80211com *, u_long, caddr_t);
404 int	ieee80211_cfgget(struct ieee80211com *, u_long, caddr_t);
405 int	ieee80211_cfgset(struct ieee80211com *, u_long, caddr_t);
406 int	ieee80211_rate2media(struct ieee80211com *, int,
407 		enum ieee80211_phymode);
408 int	ieee80211_media2rate(int);
409 int	ieee80211_mhz2ieee(u_int, u_int);
410 int	ieee80211_chan2ieee(struct ieee80211com *,
411 		const struct ieee80211_channel *);
412 u_int	ieee80211_ieee2mhz(u_int, u_int);
413 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
414 		int freq, int flags);
415 int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
416 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
417 
418 /*
419  * Key update synchronization methods.  XXX should not be visible.
420  */
421 static __inline void
422 ieee80211_key_update_begin(struct ieee80211com *ic)
423 {
424 	ic->ic_crypto.cs_key_update_begin(ic);
425 }
426 static __inline void
427 ieee80211_key_update_end(struct ieee80211com *ic)
428 {
429 	ic->ic_crypto.cs_key_update_end(ic);
430 }
431 
432 /*
433  * XXX these need to be here for IEEE80211_F_DATAPAD
434  */
435 
436 /*
437  * Return the space occupied by the 802.11 header and any
438  * padding required by the driver.  This works for a
439  * management or data frame.
440  */
441 static __inline int
442 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
443 {
444 	int size = ieee80211_hdrsize(data);
445 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
446 		size = roundup(size, sizeof(uint32_t));
447 	return size;
448 }
449 
450 /*
451  * Like ieee80211_hdrspace, but handles any type of frame.
452  */
453 static __inline int
454 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
455 {
456 	int size = ieee80211_anyhdrsize(data);
457 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
458 		size = roundup(size, sizeof(uint32_t));
459 	return size;
460 }
461 
462 #define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
463 #define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
464 #define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
465 #define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
466 #define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
467 #define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
468 #define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
469 #define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
470 #define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
471 #define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
472 #define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
473 #define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
474 #define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
475 #define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
476 #define	IEEE80211_MSG_DOT1X	0x00020000	/* 802.1x authenticator */
477 #define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
478 #define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
479 #define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
480 #define	IEEE80211_MSG_RADKEYS	0x00002000	/* dump 802.1x keys */
481 #define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
482 #define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
483 #define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
484 #define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
485 #define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
486 #define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
487 #define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
488 #define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
489 #define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
490 
491 #define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
492 
493 #ifdef IEEE80211_DEBUG
494 #define	ieee80211_msg(_ic, _m)	((_ic)->ic_debug & (_m))
495 #define	IEEE80211_DPRINTF(_ic, _m, _fmt, ...) do {			\
496 	if (ieee80211_msg(_ic, _m))					\
497 		ieee80211_note(_ic, _fmt, __VA_ARGS__);		\
498 } while (0)
499 #define	IEEE80211_NOTE(_ic, _m, _ni, _fmt, ...) do {			\
500 	if (ieee80211_msg(_ic, _m))					\
501 		ieee80211_note_mac(_ic, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
502 } while (0)
503 #define	IEEE80211_NOTE_MAC(_ic, _m, _mac, _fmt, ...) do {		\
504 	if (ieee80211_msg(_ic, _m))					\
505 		ieee80211_note_mac(_ic, _mac, _fmt, __VA_ARGS__);	\
506 } while (0)
507 #define	IEEE80211_NOTE_FRAME(_ic, _m, _wh, _fmt, ...) do {		\
508 	if (ieee80211_msg(_ic, _m))					\
509 		ieee80211_note_frame(_ic, _wh, _fmt, __VA_ARGS__);	\
510 } while (0)
511 void	ieee80211_note(struct ieee80211com *ic, const char *fmt, ...);
512 void	ieee80211_note_mac(struct ieee80211com *ic,
513 		const uint8_t mac[IEEE80211_ADDR_LEN], const char *fmt, ...);
514 void	ieee80211_note_frame(struct ieee80211com *ic,
515 		const struct ieee80211_frame *wh, const char *fmt, ...);
516 #define	ieee80211_msg_debug(_ic) \
517 	((_ic)->ic_debug & IEEE80211_MSG_DEBUG)
518 #define	ieee80211_msg_dumppkts(_ic) \
519 	((_ic)->ic_debug & IEEE80211_MSG_DUMPPKTS)
520 #define	ieee80211_msg_input(_ic) \
521 	((_ic)->ic_debug & IEEE80211_MSG_INPUT)
522 #define	ieee80211_msg_radius(_ic) \
523 	((_ic)->ic_debug & IEEE80211_MSG_RADIUS)
524 #define	ieee80211_msg_dumpradius(_ic) \
525 	((_ic)->ic_debug & IEEE80211_MSG_RADDUMP)
526 #define	ieee80211_msg_dumpradkeys(_ic) \
527 	((_ic)->ic_debug & IEEE80211_MSG_RADKEYS)
528 #define	ieee80211_msg_scan(_ic) \
529 	((_ic)->ic_debug & IEEE80211_MSG_SCAN)
530 #define	ieee80211_msg_assoc(_ic) \
531 	((_ic)->ic_debug & IEEE80211_MSG_ASSOC)
532 
533 /*
534  * Emit a debug message about discarding a frame or information
535  * element.  One format is for extracting the mac address from
536  * the frame header; the other is for when a header is not
537  * available or otherwise appropriate.
538  */
539 #define	IEEE80211_DISCARD(_ic, _m, _wh, _type, _fmt, ...) do {		\
540 	if ((_ic)->ic_debug & (_m))					\
541 		ieee80211_discard_frame(_ic, _wh, _type, _fmt, __VA_ARGS__);\
542 } while (0)
543 #define	IEEE80211_DISCARD_IE(_ic, _m, _wh, _type, _fmt, ...) do {	\
544 	if ((_ic)->ic_debug & (_m))					\
545 		ieee80211_discard_ie(_ic, _wh, _type, _fmt, __VA_ARGS__);\
546 } while (0)
547 #define	IEEE80211_DISCARD_MAC(_ic, _m, _mac, _type, _fmt, ...) do {	\
548 	if ((_ic)->ic_debug & (_m))					\
549 		ieee80211_discard_mac(_ic, _mac, _type, _fmt, __VA_ARGS__);\
550 } while (0)
551 
552 void ieee80211_discard_frame(struct ieee80211com *,
553 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
554 void ieee80211_discard_ie(struct ieee80211com *,
555 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
556 void ieee80211_discard_mac(struct ieee80211com *,
557 	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
558 	const char *fmt, ...);
559 #else
560 #define	IEEE80211_DPRINTF(_ic, _m, _fmt, ...)
561 #define	IEEE80211_NOTE(_ic, _m, _ni, _fmt, ...)
562 #define	IEEE80211_NOTE_FRAME(_ic, _m, _wh, _fmt, ...)
563 #define	IEEE80211_NOTE_MAC(_ic, _m, _mac, _fmt, ...)
564 #define	ieee80211_msg_dumppkts(_ic)	0
565 #define	ieee80211_msg(_ic, _m)		0
566 
567 #define	IEEE80211_DISCARD(_ic, _m, _wh, _type, _fmt, ...)
568 #define	IEEE80211_DISCARD_IE(_ic, _m, _wh, _type, _fmt, ...)
569 #define	IEEE80211_DISCARD_MAC(_ic, _m, _mac, _type, _fmt, ...)
570 #endif
571 
572 #endif /* _NET80211_IEEE80211_VAR_H_ */
573