xref: /freebsd/sys/net80211/ieee80211_node.h (revision f126890ac5386406dadf7c4cfa9566cbb56537c5)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2001 Atsushi Onoe
5  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 #ifndef _NET80211_IEEE80211_NODE_H_
29 #define _NET80211_IEEE80211_NODE_H_
30 
31 #include <net80211/ieee80211_ioctl.h>		/* for ieee80211_nodestats */
32 #include <net80211/ieee80211_ht.h>		/* for aggregation state */
33 
34 /*
35  * Each ieee80211com instance has a single timer that fires every
36  * IEEE80211_INACT_WAIT seconds to handle "inactivity processing".
37  * This is used to do node inactivity processing when operating
38  * as an AP, adhoc or mesh mode.  For inactivity processing each node
39  * has a timeout set in its ni_inact field that is decremented
40  * on each timeout and the node is reclaimed when the counter goes
41  * to zero.  We use different inactivity timeout values depending
42  * on whether the node is associated and authorized (either by
43  * 802.1x or open/shared key authentication) or associated but yet
44  * to be authorized.  The latter timeout is shorter to more aggressively
45  * reclaim nodes that leave part way through the 802.1x exchange.
46  */
47 #define	IEEE80211_INACT_WAIT	15		/* inactivity interval (secs) */
48 #define	IEEE80211_INACT_INIT	(30/IEEE80211_INACT_WAIT)	/* initial */
49 #define	IEEE80211_INACT_AUTH	(180/IEEE80211_INACT_WAIT)	/* associated but not authorized */
50 #define	IEEE80211_INACT_RUN	(300/IEEE80211_INACT_WAIT)	/* authorized */
51 #define	IEEE80211_INACT_PROBE	(30/IEEE80211_INACT_WAIT)	/* probe */
52 #define	IEEE80211_INACT_SCAN	(300/IEEE80211_INACT_WAIT)	/* scanned */
53 
54 #define	IEEE80211_TRANS_WAIT 	2		/* mgt frame tx timer (secs) */
55 
56 /* threshold for aging overlapping non-ERP bss */
57 #define	IEEE80211_NONERP_PRESENT_AGE	msecs_to_ticks(60*1000)
58 
59 #define	IEEE80211_NODE_HASHSIZE	32		/* NB: hash size must be pow2 */
60 /* simple hash is enough for variation of macaddr */
61 #define	IEEE80211_NODE_HASH(ic, addr)	\
62 	(((const uint8_t *)(addr))[IEEE80211_ADDR_LEN - 1] % \
63 		IEEE80211_NODE_HASHSIZE)
64 
65 struct ieee80211_node_table;
66 struct ieee80211com;
67 struct ieee80211vap;
68 struct ieee80211_scanparams;
69 
70 /*
71  * Information element (IE) ``blob''.  We use this structure
72  * to capture management frame payloads that need to be
73  * retained.  Information elements within the payload that
74  * we need to consult have references recorded.
75  */
76 struct ieee80211_ies {
77 	/* the following are either NULL or point within data */
78 	uint8_t	*wpa_ie;	/* captured WPA ie */
79 	uint8_t	*rsn_ie;	/* captured RSN ie */
80 	uint8_t	*wme_ie;	/* captured WME ie */
81 	uint8_t	*ath_ie;	/* captured Atheros ie */
82 	uint8_t	*htcap_ie;	/* captured HTCAP ie */
83 	uint8_t	*htinfo_ie;	/* captured HTINFO ie */
84 	uint8_t	*tdma_ie;	/* captured TDMA ie */
85 	uint8_t *meshid_ie;	/* captured MESH ID ie */
86 	uint8_t	*vhtcap_ie;	/* captured VHTCAP ie */
87 	uint8_t	*vhtopmode_ie;	/* captured VHTOPMODE ie */
88 	uint8_t	*vhtpwrenv_ie;	/* captured VHTPWRENV ie */
89 	uint8_t	*apchanrep_ie;	/* captured APCHANREP ie */
90 	uint8_t	*bssload_ie;	/* captured BSSLOAD ie */
91 	uint8_t	*spare[4];
92 	/* NB: these must be the last members of this structure */
93 	uint8_t	*data;		/* frame data > 802.11 header */
94 	int	len;		/* data size in bytes */
95 };
96 
97 /*
98  * 802.11s (Mesh) Peer Link FSM state.
99  */
100 enum ieee80211_mesh_mlstate {
101 	IEEE80211_NODE_MESH_IDLE	= 0,
102 	IEEE80211_NODE_MESH_OPENSNT	= 1,	/* open frame sent */
103 	IEEE80211_NODE_MESH_OPENRCV	= 2,	/* open frame received */
104 	IEEE80211_NODE_MESH_CONFIRMRCV	= 3,	/* confirm frame received */
105 	IEEE80211_NODE_MESH_ESTABLISHED	= 4,	/* link established */
106 	IEEE80211_NODE_MESH_HOLDING	= 5,	/* link closing */
107 };
108 #define	IEEE80211_MESH_MLSTATE_BITS \
109 	"\20\1IDLE\2OPENSNT\2OPENRCV\3CONFIRMRCV\4ESTABLISHED\5HOLDING"
110 
111 /*
112  * Node specific information.  Note that drivers are expected
113  * to derive from this structure to add device-specific per-node
114  * state.  This is done by overriding the ic_node_* methods in
115  * the ieee80211com structure.
116  */
117 struct ieee80211_node {
118 	struct ieee80211vap	*ni_vap;	/* associated vap */
119 	struct ieee80211com	*ni_ic;		/* copy from vap to save deref*/
120 	struct ieee80211_node_table *ni_table;	/* NB: may be NULL */
121 	TAILQ_ENTRY(ieee80211_node) ni_list;	/* list of all nodes */
122 	LIST_ENTRY(ieee80211_node) ni_hash;	/* hash collision list */
123 	u_int			ni_refcnt;	/* count of held references */
124 	u_int			ni_flags;
125 #define	IEEE80211_NODE_AUTH	0x000001	/* authorized for data */
126 #define	IEEE80211_NODE_QOS	0x000002	/* QoS enabled */
127 #define	IEEE80211_NODE_ERP	0x000004	/* ERP enabled */
128 /* NB: this must have the same value as IEEE80211_FC1_PWR_MGT */
129 #define	IEEE80211_NODE_PWR_MGT	0x000010	/* power save mode enabled */
130 #define	IEEE80211_NODE_AREF	0x000020	/* authentication ref held */
131 #define	IEEE80211_NODE_HT	0x000040	/* HT enabled */
132 #define	IEEE80211_NODE_HTCOMPAT	0x000080	/* HT setup w/ vendor OUI's */
133 #define	IEEE80211_NODE_WPS	0x000100	/* WPS association */
134 #define	IEEE80211_NODE_TSN	0x000200	/* TSN association */
135 #define	IEEE80211_NODE_AMPDU_RX	0x000400	/* AMPDU rx enabled */
136 #define	IEEE80211_NODE_AMPDU_TX	0x000800	/* AMPDU tx enabled */
137 #define	IEEE80211_NODE_MIMO_PS	0x001000	/* MIMO power save enabled */
138 #define	IEEE80211_NODE_MIMO_RTS	0x002000	/* send RTS in MIMO PS */
139 #define	IEEE80211_NODE_RIFS	0x004000	/* RIFS enabled */
140 #define	IEEE80211_NODE_SGI20	0x008000	/* Short GI in HT20 enabled */
141 #define	IEEE80211_NODE_SGI40	0x010000	/* Short GI in HT40 enabled */
142 #define	IEEE80211_NODE_ASSOCID	0x020000	/* xmit requires associd */
143 #define	IEEE80211_NODE_AMSDU_RX	0x040000	/* AMSDU rx enabled */
144 #define	IEEE80211_NODE_AMSDU_TX	0x080000	/* AMSDU tx enabled */
145 #define	IEEE80211_NODE_VHT	0x100000	/* VHT enabled */
146 #define	IEEE80211_NODE_LDPC	0x200000	/* LDPC enabled */
147 #define	IEEE80211_NODE_UAPSD	0x400000	/* U-APSD power save enabled */
148 	uint16_t		ni_associd;	/* association ID */
149 	uint16_t		ni_vlan;	/* vlan tag */
150 	uint16_t		ni_txpower;	/* current transmit power */
151 	uint8_t			ni_authmode;	/* authentication algorithm */
152 	uint8_t			ni_ath_flags;	/* Atheros feature flags */
153 	/* NB: These must have the same values as IEEE80211_ATHC_* */
154 #define IEEE80211_NODE_TURBOP	0x0001		/* Turbo prime enable */
155 #define IEEE80211_NODE_COMP	0x0002		/* Compresssion enable */
156 #define IEEE80211_NODE_FF	0x0004          /* Fast Frame capable */
157 #define IEEE80211_NODE_XR	0x0008		/* Atheros WME enable */
158 #define IEEE80211_NODE_AR	0x0010		/* AR capable */
159 #define IEEE80211_NODE_BOOST	0x0080		/* Dynamic Turbo boosted */
160 	uint16_t		ni_ath_defkeyix;/* Atheros def key index */
161 	const struct ieee80211_txparam *ni_txparms;
162 	uint32_t		ni_jointime;	/* time of join (secs) */
163 	uint32_t		*ni_challenge;	/* shared-key challenge */
164 	struct ieee80211_ies	ni_ies;		/* captured ie's */
165 						/* tx seq per-tid */
166 	ieee80211_seq		ni_txseqs[IEEE80211_TID_SIZE];
167 						/* rx seq previous per-tid*/
168 	ieee80211_seq		ni_rxseqs[IEEE80211_TID_SIZE];
169 	uint32_t		ni_rxfragstamp;	/* time stamp of last rx frag */
170 	struct mbuf		*ni_rxfrag[3];	/* rx frag reassembly */
171 	struct ieee80211_key	ni_ucastkey;	/* unicast key */
172 
173 	/* hardware */
174 	uint32_t		ni_avgrssi;	/* recv ssi state */
175 	int8_t			ni_noise;	/* noise floor */
176 
177 	/* mimo statistics */
178 	uint32_t		ni_mimo_rssi_ctl[IEEE80211_MAX_CHAINS];
179 	uint32_t		ni_mimo_rssi_ext[IEEE80211_MAX_CHAINS];
180 	uint8_t			ni_mimo_noise_ctl[IEEE80211_MAX_CHAINS];
181 	uint8_t			ni_mimo_noise_ext[IEEE80211_MAX_CHAINS];
182 	uint8_t			ni_mimo_chains;
183 
184 	/* header */
185 	uint8_t			ni_macaddr[IEEE80211_ADDR_LEN];
186 	uint8_t			ni_bssid[IEEE80211_ADDR_LEN];
187 
188 	/* beacon, probe response */
189 	union {
190 		uint8_t		data[8];
191 		u_int64_t	tsf;
192 	} ni_tstamp;				/* from last rcv'd beacon */
193 	uint16_t		ni_intval;	/* beacon interval */
194 	uint16_t		ni_capinfo;	/* capabilities */
195 	uint8_t			ni_esslen;
196 	uint8_t			ni_essid[IEEE80211_NWID_LEN];
197 	struct ieee80211_rateset ni_rates;	/* negotiated rate set */
198 	struct ieee80211_channel *ni_chan;
199 	uint16_t		ni_fhdwell;	/* FH only */
200 	uint8_t			ni_fhindex;	/* FH only */
201 	uint16_t		ni_erp;		/* ERP from beacon/probe resp */
202 	uint16_t		ni_timoff;	/* byte offset to TIM ie */
203 	uint8_t			ni_dtim_period;	/* DTIM period */
204 	uint8_t			ni_dtim_count;	/* DTIM count for last bcn */
205 
206 	/* 11s state */
207 	uint8_t			ni_meshidlen;
208 	uint8_t			ni_meshid[IEEE80211_MESHID_LEN];
209 	enum ieee80211_mesh_mlstate ni_mlstate;	/* peering management state */
210 	uint16_t		ni_mllid;	/* link local ID */
211 	uint16_t		ni_mlpid;	/* link peer ID */
212 	struct callout		ni_mltimer;	/* link mesh timer */
213 	uint8_t			ni_mlrcnt;	/* link mesh retry counter */
214 	uint8_t			ni_mltval;	/* link mesh timer value */
215 	struct callout		ni_mlhtimer;	/* link mesh backoff timer */
216 	uint8_t			ni_mlhcnt;	/* link mesh holding counter */
217 
218 	/* 11n state */
219 	uint16_t		ni_htcap;	/* HT capabilities */
220 	uint8_t			ni_htparam;	/* HT params */
221 	uint8_t			ni_htctlchan;	/* HT control channel */
222 	uint8_t			ni_ht2ndchan;	/* HT 2nd channel */
223 	uint8_t			ni_htopmode;	/* HT operating mode */
224 	uint8_t			ni_htstbc;	/* HT */
225 	uint8_t			ni_chw;		/* negotiated channel width */
226 	struct ieee80211_htrateset ni_htrates;	/* negotiated ht rate set */
227 	struct ieee80211_tx_ampdu ni_tx_ampdu[WME_NUM_TID];
228 	struct ieee80211_rx_ampdu ni_rx_ampdu[WME_NUM_TID];
229 
230 	/* VHT state */
231 	uint32_t		ni_vhtcap;
232 	uint16_t		ni_vht_basicmcs;
233 	uint16_t		ni_vht_pad2;
234 	struct ieee80211_vht_mcs_info	ni_vht_mcsinfo;
235 	uint8_t			ni_vht_chan1;	/* 20/40/80/160 - VHT chan1 */
236 	uint8_t			ni_vht_chan2;	/* 80+80 - VHT chan2 */
237 	uint8_t			ni_vht_chanwidth;	/* IEEE80211_VHT_CHANWIDTH_ */
238 	uint8_t			ni_vht_pad1;
239 	uint32_t		ni_vht_spare[8];
240 
241 	/* fast-frames state */
242 	struct mbuf *		ni_tx_superg[WME_NUM_TID];
243 
244 	/* others */
245 	short			ni_inact;	/* inactivity mark count */
246 	short			ni_inact_reload;/* inactivity reload value */
247 	int			ni_txrate;	/* legacy rate/MCS */
248 	struct ieee80211_psq	ni_psq;		/* power save queue */
249 	struct ieee80211_nodestats ni_stats;	/* per-node statistics */
250 
251 	struct ieee80211vap	*ni_wdsvap;	/* associated WDS vap */
252 	void			*ni_rctls;	/* private ratectl state */
253 
254 	/* quiet time IE state for the given node */
255 	uint32_t		ni_quiet_ie_set;	/* Quiet time IE was seen */
256 	struct			ieee80211_quiet_ie ni_quiet_ie;	/* last seen quiet IE */
257 
258 	/* U-APSD */
259 	uint8_t			ni_uapsd;	/* U-APSD per-node flags matching WMM STA QoS Info field */
260 
261 	void			*ni_drv_data;	/* driver specific */
262 
263 	uint64_t		ni_spare[3];
264 };
265 MALLOC_DECLARE(M_80211_NODE);
266 MALLOC_DECLARE(M_80211_NODE_IE);
267 
268 #define	IEEE80211_NODE_ATH	(IEEE80211_NODE_FF | IEEE80211_NODE_TURBOP)
269 #define	IEEE80211_NODE_AMPDU \
270 	(IEEE80211_NODE_AMPDU_RX | IEEE80211_NODE_AMPDU_TX)
271 #define	IEEE80211_NODE_AMSDU \
272 	(IEEE80211_NODE_AMSDU_RX | IEEE80211_NODE_AMSDU_TX)
273 #define	IEEE80211_NODE_HT_ALL \
274 	(IEEE80211_NODE_HT | IEEE80211_NODE_HTCOMPAT | \
275 	 IEEE80211_NODE_AMPDU | IEEE80211_NODE_AMSDU | \
276 	 IEEE80211_NODE_MIMO_PS | IEEE80211_NODE_MIMO_RTS | \
277 	 IEEE80211_NODE_RIFS | IEEE80211_NODE_SGI20 | IEEE80211_NODE_SGI40)
278 
279 #define	IEEE80211_NODE_BITS \
280 	"\20\1AUTH\2QOS\3ERP\5PWR_MGT\6AREF\7HT\10HTCOMPAT\11WPS\12TSN" \
281 	"\13AMPDU_RX\14AMPDU_TX\15MIMO_PS\16MIMO_RTS\17RIFS\20SGI20\21SGI40" \
282 	"\22ASSOCID"
283 
284 #define	IEEE80211_NODE_AID(ni)	IEEE80211_AID(ni->ni_associd)
285 
286 #define	IEEE80211_NODE_STAT(ni,stat)	(ni->ni_stats.ns_##stat++)
287 #define	IEEE80211_NODE_STAT_ADD(ni,stat,v)	(ni->ni_stats.ns_##stat += v)
288 #define	IEEE80211_NODE_STAT_SET(ni,stat,v)	(ni->ni_stats.ns_##stat = v)
289 
290 /*
291  * Filtered rssi calculation support.  The receive rssi is maintained
292  * as an average over the last 10 frames received using a low pass filter
293  * (all frames for now, possibly need to be more selective).  Calculations
294  * are designed such that a good compiler can optimize them.  The avg
295  * rssi state should be initialized to IEEE80211_RSSI_DUMMY_MARKER and
296  * each sample incorporated with IEEE80211_RSSI_LPF.  Use IEEE80211_RSSI_GET
297  * to extract the current value.
298  *
299  * Note that we assume rssi data are in the range [-127..127] and we
300  * discard values <-20.  This is consistent with assumptions throughout
301  * net80211 that signal strength data are in .5 dBm units relative to
302  * the current noise floor (linear, not log).
303  */
304 #define IEEE80211_RSSI_LPF_LEN		10
305 #define	IEEE80211_RSSI_DUMMY_MARKER	127
306 /* NB: pow2 to optimize out * and / */
307 #define	IEEE80211_RSSI_EP_MULTIPLIER	(1<<7)
308 #define IEEE80211_RSSI_IN(x)		((x) * IEEE80211_RSSI_EP_MULTIPLIER)
309 #define _IEEE80211_RSSI_LPF(x, y, len) \
310     (((x) != IEEE80211_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y))
311 #define IEEE80211_RSSI_LPF(x, y) do {					\
312     if ((y) >= -20) {							\
313     	x = _IEEE80211_RSSI_LPF((x), IEEE80211_RSSI_IN((y)), 		\
314 		IEEE80211_RSSI_LPF_LEN);				\
315     }									\
316 } while (0)
317 #define	IEEE80211_RSSI_EP_RND(x, mul) \
318 	((((x) % (mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
319 #define	IEEE80211_RSSI_GET(x) \
320 	IEEE80211_RSSI_EP_RND(x, IEEE80211_RSSI_EP_MULTIPLIER)
321 
322 void	ieee80211_node_attach(struct ieee80211com *);
323 void	ieee80211_node_lateattach(struct ieee80211com *);
324 void	ieee80211_node_detach(struct ieee80211com *);
325 void	ieee80211_node_vattach(struct ieee80211vap *);
326 void	ieee80211_node_latevattach(struct ieee80211vap *);
327 void	ieee80211_node_vdetach(struct ieee80211vap *);
328 
329 static __inline int
330 ieee80211_node_is_authorized(const struct ieee80211_node *ni)
331 {
332 	return (ni->ni_flags & IEEE80211_NODE_AUTH);
333 }
334 
335 void	ieee80211_node_authorize(struct ieee80211_node *);
336 void	ieee80211_node_unauthorize(struct ieee80211_node *);
337 
338 void	ieee80211_node_setuptxparms(struct ieee80211_node *);
339 void	ieee80211_node_set_chan(struct ieee80211_node *,
340 		struct ieee80211_channel *);
341 void	ieee80211_create_ibss(struct ieee80211vap*, struct ieee80211_channel *);
342 void	ieee80211_reset_bss(struct ieee80211vap *);
343 void	ieee80211_sync_curchan(struct ieee80211com *);
344 void	ieee80211_setupcurchan(struct ieee80211com *,
345 	    struct ieee80211_channel *);
346 void	ieee80211_setcurchan(struct ieee80211com *, struct ieee80211_channel *);
347 void	ieee80211_update_chw(struct ieee80211com *);
348 int	ieee80211_ibss_merge_check(struct ieee80211_node *);
349 int	ieee80211_ibss_node_check_new(struct ieee80211_node *ni,
350 	    const struct ieee80211_scanparams *);
351 int	ieee80211_ibss_merge(struct ieee80211_node *);
352 struct ieee80211_scan_entry;
353 int	ieee80211_sta_join(struct ieee80211vap *, struct ieee80211_channel *,
354 		const struct ieee80211_scan_entry *);
355 void	ieee80211_sta_leave(struct ieee80211_node *);
356 void	ieee80211_node_deauth(struct ieee80211_node *, int);
357 
358 int	ieee80211_ies_init(struct ieee80211_ies *, const uint8_t *, int);
359 void	ieee80211_ies_cleanup(struct ieee80211_ies *);
360 void	ieee80211_ies_expand(struct ieee80211_ies *);
361 #define	ieee80211_ies_setie(_ies, _ie, _off) do {		\
362 	(_ies)._ie = (_ies).data + (_off);			\
363 } while (0)
364 
365 /*
366  * Table of ieee80211_node instances.  Each ieee80211com
367  * has one that holds association stations (when operating
368  * as an ap) or neighbors (in ibss mode).
369  *
370  * XXX embed this in ieee80211com instead of indirect?
371  */
372 struct ieee80211_node_table {
373 	struct ieee80211com	*nt_ic;		/* back reference */
374 	ieee80211_node_lock_t	nt_nodelock;	/* on node table */
375 	TAILQ_HEAD(, ieee80211_node) nt_node;	/* information of all nodes */
376 	LIST_HEAD(, ieee80211_node) nt_hash[IEEE80211_NODE_HASHSIZE];
377 	int			nt_count;	/* number of nodes */
378 	struct ieee80211_node	**nt_keyixmap;	/* key ix -> node map */
379 	int			nt_keyixmax;	/* keyixmap size */
380 	const char		*nt_name;	/* table name for debug msgs */
381 	int			nt_inact_init;	/* initial node inact setting */
382 };
383 
384 struct ieee80211_node *ieee80211_tmp_node(struct ieee80211vap *,
385 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
386 struct ieee80211_node *ieee80211_dup_bss(struct ieee80211vap *,
387 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
388 struct ieee80211_node *ieee80211_node_create_wds(struct ieee80211vap *,
389 		const uint8_t bssid[IEEE80211_ADDR_LEN],
390 		struct ieee80211_channel *);
391 
392 /* These functions are taking __func__, __LINE__ for IEEE80211_DEBUG_REFCNT */
393 struct ieee80211_node *_ieee80211_ref_node(struct ieee80211_node *,
394 		const char *func, int line);
395 void	_ieee80211_free_node(struct ieee80211_node *,
396 		const char *func, int line);
397 struct ieee80211_node *_ieee80211_find_node_locked(
398 		struct ieee80211_node_table *,
399 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
400 		const char *func, int line);
401 struct ieee80211_node *_ieee80211_find_node(struct ieee80211_node_table *,
402 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
403 		const char *func, int line);
404 struct ieee80211_node *_ieee80211_find_vap_node_locked(
405 		struct ieee80211_node_table *,
406 		const struct ieee80211vap *vap,
407 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
408 		const char *func, int line);
409 struct ieee80211_node *_ieee80211_find_vap_node(
410 		struct ieee80211_node_table *,
411 		const struct ieee80211vap *vap,
412 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
413 		const char *func, int line);
414 struct ieee80211_node *_ieee80211_find_rxnode(struct ieee80211com *,
415 		const struct ieee80211_frame_min *,
416 		const char *func, int line);
417 struct ieee80211_node *_ieee80211_find_rxnode_withkey(
418 		struct ieee80211com *,
419 		const struct ieee80211_frame_min *, uint16_t keyix,
420 		const char *func, int line);
421 struct ieee80211_node *_ieee80211_find_txnode(struct ieee80211vap *,
422 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
423 		const char *func, int line);
424 #define	ieee80211_ref_node(ni) \
425 	_ieee80211_ref_node(ni, __func__, __LINE__)
426 #define	ieee80211_free_node(ni) \
427 	_ieee80211_free_node(ni, __func__, __LINE__)
428 #define	ieee80211_find_node_locked(nt, mac) \
429 	_ieee80211_find_node_locked(nt, mac, __func__, __LINE__)
430 #define	ieee80211_find_node(nt, mac) \
431 	_ieee80211_find_node(nt, mac, __func__, __LINE__)
432 #define	ieee80211_find_vap_node_locked(nt, vap, mac) \
433 	_ieee80211_find_vap_node_locked(nt, vap, mac, __func__, __LINE__)
434 #define	ieee80211_find_vap_node(nt, vap, mac) \
435 	_ieee80211_find_vap_node(nt, vap, mac, __func__, __LINE__)
436 #define	ieee80211_find_rxnode(ic, wh) \
437 	_ieee80211_find_rxnode(ic, wh, __func__, __LINE__)
438 #define	ieee80211_find_rxnode_withkey(ic, wh, keyix) \
439 	_ieee80211_find_rxnode_withkey(ic, wh, keyix, __func__, __LINE__)
440 #define	ieee80211_find_txnode(vap, mac) \
441 	_ieee80211_find_txnode(vap, mac, __func__, __LINE__)
442 
443 int	ieee80211_node_delucastkey(struct ieee80211_node *);
444 void	ieee80211_node_timeout(void *arg);
445 
446 typedef void ieee80211_iter_func(void *, struct ieee80211_node *);
447 int	ieee80211_iterate_nodes_vap(struct ieee80211_node_table *,
448 		struct ieee80211vap *, ieee80211_iter_func *, void *);
449 void	ieee80211_iterate_nodes(struct ieee80211_node_table *,
450 		ieee80211_iter_func *, void *);
451 
452 void	ieee80211_notify_erp_locked(struct ieee80211com *);
453 void	ieee80211_dump_node(struct ieee80211_node_table *,
454 		struct ieee80211_node *);
455 void	ieee80211_dump_nodes(struct ieee80211_node_table *);
456 
457 struct ieee80211_node *ieee80211_fakeup_adhoc_node(struct ieee80211vap *,
458 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
459 struct ieee80211_scanparams;
460 void	ieee80211_init_neighbor(struct ieee80211_node *,
461 		const struct ieee80211_frame *,
462 		const struct ieee80211_scanparams *);
463 struct ieee80211_node *ieee80211_add_neighbor(struct ieee80211vap *,
464 		const struct ieee80211_frame *,
465 		const struct ieee80211_scanparams *);
466 void	ieee80211_node_join(struct ieee80211_node *,int);
467 void	ieee80211_node_leave(struct ieee80211_node *);
468 int8_t	ieee80211_getrssi(struct ieee80211vap *);
469 void	ieee80211_getsignal(struct ieee80211vap *, int8_t *, int8_t *);
470 #endif /* _NET80211_IEEE80211_NODE_H_ */
471