xref: /freebsd/sys/net80211/ieee80211_node.h (revision 4f52dfbb)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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  * $FreeBSD$
29  */
30 #ifndef _NET80211_IEEE80211_NODE_H_
31 #define _NET80211_IEEE80211_NODE_H_
32 
33 #include <net80211/ieee80211_ioctl.h>		/* for ieee80211_nodestats */
34 #include <net80211/ieee80211_ht.h>		/* for aggregation state */
35 
36 /*
37  * Each ieee80211com instance has a single timer that fires every
38  * IEEE80211_INACT_WAIT seconds to handle "inactivity processing".
39  * This is used to do node inactivity processing when operating
40  * as an AP, adhoc or mesh mode.  For inactivity processing each node
41  * has a timeout set in its ni_inact field that is decremented
42  * on each timeout and the node is reclaimed when the counter goes
43  * to zero.  We use different inactivity timeout values depending
44  * on whether the node is associated and authorized (either by
45  * 802.1x or open/shared key authentication) or associated but yet
46  * to be authorized.  The latter timeout is shorter to more aggressively
47  * reclaim nodes that leave part way through the 802.1x exchange.
48  */
49 #define	IEEE80211_INACT_WAIT	15		/* inactivity interval (secs) */
50 #define	IEEE80211_INACT_INIT	(30/IEEE80211_INACT_WAIT)	/* initial */
51 #define	IEEE80211_INACT_AUTH	(180/IEEE80211_INACT_WAIT)	/* associated but not authorized */
52 #define	IEEE80211_INACT_RUN	(300/IEEE80211_INACT_WAIT)	/* authorized */
53 #define	IEEE80211_INACT_PROBE	(30/IEEE80211_INACT_WAIT)	/* probe */
54 #define	IEEE80211_INACT_SCAN	(300/IEEE80211_INACT_WAIT)	/* scanned */
55 
56 #define	IEEE80211_TRANS_WAIT 	2		/* mgt frame tx timer (secs) */
57 
58 /* threshold for aging overlapping non-ERP bss */
59 #define	IEEE80211_NONERP_PRESENT_AGE	msecs_to_ticks(60*1000)
60 
61 #define	IEEE80211_NODE_HASHSIZE	32		/* NB: hash size must be pow2 */
62 /* simple hash is enough for variation of macaddr */
63 #define	IEEE80211_NODE_HASH(ic, addr)	\
64 	(((const uint8_t *)(addr))[IEEE80211_ADDR_LEN - 1] % \
65 		IEEE80211_NODE_HASHSIZE)
66 
67 struct ieee80211_node_table;
68 struct ieee80211com;
69 struct ieee80211vap;
70 struct ieee80211_scanparams;
71 
72 /*
73  * Information element ``blob''.  We use this structure
74  * to capture management frame payloads that need to be
75  * retained.  Information elements within the payload that
76  * we need to consult have references recorded.
77  */
78 struct ieee80211_ies {
79 	/* the following are either NULL or point within data */
80 	uint8_t	*wpa_ie;	/* captured WPA ie */
81 	uint8_t	*rsn_ie;	/* captured RSN ie */
82 	uint8_t	*wme_ie;	/* captured WME ie */
83 	uint8_t	*ath_ie;	/* captured Atheros ie */
84 	uint8_t	*htcap_ie;	/* captured HTCAP ie */
85 	uint8_t	*htinfo_ie;	/* captured HTINFO ie */
86 	uint8_t	*tdma_ie;	/* captured TDMA ie */
87 	uint8_t *meshid_ie;	/* captured MESH ID ie */
88 	uint8_t	*vhtcap_ie;	/* captured VHTCAP ie */
89 	uint8_t	*vhtopmode_ie;	/* captured VHTOPMODE ie */
90 	uint8_t	*vhtpwrenv_ie;	/* captured VHTPWRENV ie */
91 	uint8_t	*apchanrep_ie;	/* captured APCHANREP ie */
92 	uint8_t	*bssload_ie;	/* captured BSSLOAD ie */
93 	uint8_t	*spare[4];
94 	/* NB: these must be the last members of this structure */
95 	uint8_t	*data;		/* frame data > 802.11 header */
96 	int	len;		/* data size in bytes */
97 };
98 
99 /*
100  * 802.11s (Mesh) Peer Link FSM state.
101  */
102 enum ieee80211_mesh_mlstate {
103 	IEEE80211_NODE_MESH_IDLE	= 0,
104 	IEEE80211_NODE_MESH_OPENSNT	= 1,	/* open frame sent */
105 	IEEE80211_NODE_MESH_OPENRCV	= 2,	/* open frame received */
106 	IEEE80211_NODE_MESH_CONFIRMRCV	= 3,	/* confirm frame received */
107 	IEEE80211_NODE_MESH_ESTABLISHED	= 4,	/* link established */
108 	IEEE80211_NODE_MESH_HOLDING	= 5,	/* link closing */
109 };
110 #define	IEEE80211_MESH_MLSTATE_BITS \
111 	"\20\1IDLE\2OPENSNT\2OPENRCV\3CONFIRMRCV\4ESTABLISHED\5HOLDING"
112 
113 /*
114  * Node specific information.  Note that drivers are expected
115  * to derive from this structure to add device-specific per-node
116  * state.  This is done by overriding the ic_node_* methods in
117  * the ieee80211com structure.
118  */
119 struct ieee80211_node {
120 	struct ieee80211vap	*ni_vap;	/* associated vap */
121 	struct ieee80211com	*ni_ic;		/* copy from vap to save deref*/
122 	struct ieee80211_node_table *ni_table;	/* NB: may be NULL */
123 	TAILQ_ENTRY(ieee80211_node) ni_list;	/* list of all nodes */
124 	LIST_ENTRY(ieee80211_node) ni_hash;	/* hash collision list */
125 	u_int			ni_refcnt;	/* count of held references */
126 	u_int			ni_flags;
127 #define	IEEE80211_NODE_AUTH	0x000001	/* authorized for data */
128 #define	IEEE80211_NODE_QOS	0x000002	/* QoS enabled */
129 #define	IEEE80211_NODE_ERP	0x000004	/* ERP enabled */
130 /* NB: this must have the same value as IEEE80211_FC1_PWR_MGT */
131 #define	IEEE80211_NODE_PWR_MGT	0x000010	/* power save mode enabled */
132 #define	IEEE80211_NODE_AREF	0x000020	/* authentication ref held */
133 #define	IEEE80211_NODE_HT	0x000040	/* HT enabled */
134 #define	IEEE80211_NODE_HTCOMPAT	0x000080	/* HT setup w/ vendor OUI's */
135 #define	IEEE80211_NODE_WPS	0x000100	/* WPS association */
136 #define	IEEE80211_NODE_TSN	0x000200	/* TSN association */
137 #define	IEEE80211_NODE_AMPDU_RX	0x000400	/* AMPDU rx enabled */
138 #define	IEEE80211_NODE_AMPDU_TX	0x000800	/* AMPDU tx enabled */
139 #define	IEEE80211_NODE_MIMO_PS	0x001000	/* MIMO power save enabled */
140 #define	IEEE80211_NODE_MIMO_RTS	0x002000	/* send RTS in MIMO PS */
141 #define	IEEE80211_NODE_RIFS	0x004000	/* RIFS enabled */
142 #define	IEEE80211_NODE_SGI20	0x008000	/* Short GI in HT20 enabled */
143 #define	IEEE80211_NODE_SGI40	0x010000	/* Short GI in HT40 enabled */
144 #define	IEEE80211_NODE_ASSOCID	0x020000	/* xmit requires associd */
145 #define	IEEE80211_NODE_AMSDU_RX	0x040000	/* AMSDU rx enabled */
146 #define	IEEE80211_NODE_AMSDU_TX	0x080000	/* AMSDU tx enabled */
147 #define	IEEE80211_NODE_VHT	0x100000	/* VHT enabled */
148 #define	IEEE80211_NODE_LDPC	0x200000	/* LDPC enabled */
149 	uint16_t		ni_associd;	/* association ID */
150 	uint16_t		ni_vlan;	/* vlan tag */
151 	uint16_t		ni_txpower;	/* current transmit power */
152 	uint8_t			ni_authmode;	/* authentication algorithm */
153 	uint8_t			ni_ath_flags;	/* Atheros feature flags */
154 	/* NB: These must have the same values as IEEE80211_ATHC_* */
155 #define IEEE80211_NODE_TURBOP	0x0001		/* Turbo prime enable */
156 #define IEEE80211_NODE_COMP	0x0002		/* Compresssion enable */
157 #define IEEE80211_NODE_FF	0x0004          /* Fast Frame capable */
158 #define IEEE80211_NODE_XR	0x0008		/* Atheros WME enable */
159 #define IEEE80211_NODE_AR	0x0010		/* AR capable */
160 #define IEEE80211_NODE_BOOST	0x0080		/* Dynamic Turbo boosted */
161 	uint16_t		ni_ath_defkeyix;/* Atheros def key index */
162 	const struct ieee80211_txparam *ni_txparms;
163 	uint32_t		ni_jointime;	/* time of join (secs) */
164 	uint32_t		*ni_challenge;	/* shared-key challenge */
165 	struct ieee80211_ies	ni_ies;		/* captured ie's */
166 						/* tx seq per-tid */
167 	ieee80211_seq		ni_txseqs[IEEE80211_TID_SIZE];
168 						/* rx seq previous per-tid*/
169 	ieee80211_seq		ni_rxseqs[IEEE80211_TID_SIZE];
170 	uint32_t		ni_rxfragstamp;	/* time stamp of last rx frag */
171 	struct mbuf		*ni_rxfrag[3];	/* rx frag reassembly */
172 	struct ieee80211_key	ni_ucastkey;	/* unicast key */
173 
174 	/* hardware */
175 	uint32_t		ni_avgrssi;	/* recv ssi state */
176 	int8_t			ni_noise;	/* noise floor */
177 
178 	/* mimo statistics */
179 	uint32_t		ni_mimo_rssi_ctl[IEEE80211_MAX_CHAINS];
180 	uint32_t		ni_mimo_rssi_ext[IEEE80211_MAX_CHAINS];
181 	uint8_t			ni_mimo_noise_ctl[IEEE80211_MAX_CHAINS];
182 	uint8_t			ni_mimo_noise_ext[IEEE80211_MAX_CHAINS];
183 	uint8_t			ni_mimo_chains;
184 
185 	/* header */
186 	uint8_t			ni_macaddr[IEEE80211_ADDR_LEN];
187 	uint8_t			ni_bssid[IEEE80211_ADDR_LEN];
188 
189 	/* beacon, probe response */
190 	union {
191 		uint8_t		data[8];
192 		u_int64_t	tsf;
193 	} ni_tstamp;				/* from last rcv'd beacon */
194 	uint16_t		ni_intval;	/* beacon interval */
195 	uint16_t		ni_capinfo;	/* capabilities */
196 	uint8_t			ni_esslen;
197 	uint8_t			ni_essid[IEEE80211_NWID_LEN];
198 	struct ieee80211_rateset ni_rates;	/* negotiated rate set */
199 	struct ieee80211_channel *ni_chan;
200 	uint16_t		ni_fhdwell;	/* FH only */
201 	uint8_t			ni_fhindex;	/* FH only */
202 	uint16_t		ni_erp;		/* ERP from beacon/probe resp */
203 	uint16_t		ni_timoff;	/* byte offset to TIM ie */
204 	uint8_t			ni_dtim_period;	/* DTIM period */
205 	uint8_t			ni_dtim_count;	/* DTIM count for last bcn */
206 
207 	/* 11s state */
208 	uint8_t			ni_meshidlen;
209 	uint8_t			ni_meshid[IEEE80211_MESHID_LEN];
210 	enum ieee80211_mesh_mlstate ni_mlstate;	/* peering management state */
211 	uint16_t		ni_mllid;	/* link local ID */
212 	uint16_t		ni_mlpid;	/* link peer ID */
213 	struct callout		ni_mltimer;	/* link mesh timer */
214 	uint8_t			ni_mlrcnt;	/* link mesh retry counter */
215 	uint8_t			ni_mltval;	/* link mesh timer value */
216 	struct callout		ni_mlhtimer;	/* link mesh backoff timer */
217 	uint8_t			ni_mlhcnt;	/* link mesh holding counter */
218 
219 	/* 11n state */
220 	uint16_t		ni_htcap;	/* HT capabilities */
221 	uint8_t			ni_htparam;	/* HT params */
222 	uint8_t			ni_htctlchan;	/* HT control channel */
223 	uint8_t			ni_ht2ndchan;	/* HT 2nd channel */
224 	uint8_t			ni_htopmode;	/* HT operating mode */
225 	uint8_t			ni_htstbc;	/* HT */
226 	uint8_t			ni_chw;		/* negotiated channel width */
227 	struct ieee80211_htrateset ni_htrates;	/* negotiated ht rate set */
228 	struct ieee80211_tx_ampdu ni_tx_ampdu[WME_NUM_TID];
229 	struct ieee80211_rx_ampdu ni_rx_ampdu[WME_NUM_TID];
230 
231 	/* VHT state */
232 	uint32_t		ni_vhtcap;
233 	uint16_t		ni_vht_basicmcs;
234 	uint16_t		ni_vht_pad2;
235 	struct ieee80211_vht_mcs_info	ni_vht_mcsinfo;
236 	uint8_t			ni_vht_chan1;	/* 20/40/80/160 - VHT chan1 */
237 	uint8_t			ni_vht_chan2;	/* 80+80 - VHT chan2 */
238 	uint8_t			ni_vht_chanwidth;	/* IEEE80211_VHT_CHANWIDTH_ */
239 	uint8_t			ni_vht_pad1;
240 	uint32_t		ni_vht_spare[8];
241 
242 	/* fast-frames state */
243 	struct mbuf *		ni_tx_superg[WME_NUM_TID];
244 
245 	/* others */
246 	short			ni_inact;	/* inactivity mark count */
247 	short			ni_inact_reload;/* inactivity reload value */
248 	int			ni_txrate;	/* legacy rate/MCS */
249 	struct ieee80211_psq	ni_psq;		/* power save queue */
250 	struct ieee80211_nodestats ni_stats;	/* per-node statistics */
251 
252 	struct ieee80211vap	*ni_wdsvap;	/* associated WDS vap */
253 	void			*ni_rctls;	/* private ratectl state */
254 
255 	/* quiet time IE state for the given node */
256 	uint32_t		ni_quiet_ie_set;	/* Quiet time IE was seen */
257 	struct			ieee80211_quiet_ie ni_quiet_ie;	/* last seen quiet IE */
258 
259 	uint64_t		ni_spare[3];
260 };
261 MALLOC_DECLARE(M_80211_NODE);
262 MALLOC_DECLARE(M_80211_NODE_IE);
263 
264 #define	IEEE80211_NODE_ATH	(IEEE80211_NODE_FF | IEEE80211_NODE_TURBOP)
265 #define	IEEE80211_NODE_AMPDU \
266 	(IEEE80211_NODE_AMPDU_RX | IEEE80211_NODE_AMPDU_TX)
267 #define	IEEE80211_NODE_AMSDU \
268 	(IEEE80211_NODE_AMSDU_RX | IEEE80211_NODE_AMSDU_TX)
269 #define	IEEE80211_NODE_HT_ALL \
270 	(IEEE80211_NODE_HT | IEEE80211_NODE_HTCOMPAT | \
271 	 IEEE80211_NODE_AMPDU | IEEE80211_NODE_AMSDU | \
272 	 IEEE80211_NODE_MIMO_PS | IEEE80211_NODE_MIMO_RTS | \
273 	 IEEE80211_NODE_RIFS | IEEE80211_NODE_SGI20 | IEEE80211_NODE_SGI40)
274 
275 #define	IEEE80211_NODE_BITS \
276 	"\20\1AUTH\2QOS\3ERP\5PWR_MGT\6AREF\7HT\10HTCOMPAT\11WPS\12TSN" \
277 	"\13AMPDU_RX\14AMPDU_TX\15MIMO_PS\16MIMO_RTS\17RIFS\20SGI20\21SGI40" \
278 	"\22ASSOCID"
279 
280 #define	IEEE80211_NODE_AID(ni)	IEEE80211_AID(ni->ni_associd)
281 
282 #define	IEEE80211_NODE_STAT(ni,stat)	(ni->ni_stats.ns_##stat++)
283 #define	IEEE80211_NODE_STAT_ADD(ni,stat,v)	(ni->ni_stats.ns_##stat += v)
284 #define	IEEE80211_NODE_STAT_SET(ni,stat,v)	(ni->ni_stats.ns_##stat = v)
285 
286 /*
287  * Filtered rssi calculation support.  The receive rssi is maintained
288  * as an average over the last 10 frames received using a low pass filter
289  * (all frames for now, possibly need to be more selective).  Calculations
290  * are designed such that a good compiler can optimize them.  The avg
291  * rssi state should be initialized to IEEE80211_RSSI_DUMMY_MARKER and
292  * each sample incorporated with IEEE80211_RSSI_LPF.  Use IEEE80211_RSSI_GET
293  * to extract the current value.
294  *
295  * Note that we assume rssi data are in the range [-127..127] and we
296  * discard values <-20.  This is consistent with assumptions throughout
297  * net80211 that signal strength data are in .5 dBm units relative to
298  * the current noise floor (linear, not log).
299  */
300 #define IEEE80211_RSSI_LPF_LEN		10
301 #define	IEEE80211_RSSI_DUMMY_MARKER	127
302 /* NB: pow2 to optimize out * and / */
303 #define	IEEE80211_RSSI_EP_MULTIPLIER	(1<<7)
304 #define IEEE80211_RSSI_IN(x)		((x) * IEEE80211_RSSI_EP_MULTIPLIER)
305 #define _IEEE80211_RSSI_LPF(x, y, len) \
306     (((x) != IEEE80211_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y))
307 #define IEEE80211_RSSI_LPF(x, y) do {					\
308     if ((y) >= -20) {							\
309     	x = _IEEE80211_RSSI_LPF((x), IEEE80211_RSSI_IN((y)), 		\
310 		IEEE80211_RSSI_LPF_LEN);				\
311     }									\
312 } while (0)
313 #define	IEEE80211_RSSI_EP_RND(x, mul) \
314 	((((x) % (mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
315 #define	IEEE80211_RSSI_GET(x) \
316 	IEEE80211_RSSI_EP_RND(x, IEEE80211_RSSI_EP_MULTIPLIER)
317 
318 static __inline struct ieee80211_node *
319 ieee80211_ref_node(struct ieee80211_node *ni)
320 {
321 	ieee80211_node_incref(ni);
322 	return ni;
323 }
324 
325 static __inline void
326 ieee80211_unref_node(struct ieee80211_node **ni)
327 {
328 	ieee80211_node_decref(*ni);
329 	*ni = NULL;			/* guard against use */
330 }
331 
332 void	ieee80211_node_attach(struct ieee80211com *);
333 void	ieee80211_node_lateattach(struct ieee80211com *);
334 void	ieee80211_node_detach(struct ieee80211com *);
335 void	ieee80211_node_vattach(struct ieee80211vap *);
336 void	ieee80211_node_latevattach(struct ieee80211vap *);
337 void	ieee80211_node_vdetach(struct ieee80211vap *);
338 
339 static __inline int
340 ieee80211_node_is_authorized(const struct ieee80211_node *ni)
341 {
342 	return (ni->ni_flags & IEEE80211_NODE_AUTH);
343 }
344 
345 void	ieee80211_node_authorize(struct ieee80211_node *);
346 void	ieee80211_node_unauthorize(struct ieee80211_node *);
347 
348 void	ieee80211_node_setuptxparms(struct ieee80211_node *);
349 void	ieee80211_node_set_chan(struct ieee80211_node *,
350 		struct ieee80211_channel *);
351 void	ieee80211_create_ibss(struct ieee80211vap*, struct ieee80211_channel *);
352 void	ieee80211_reset_bss(struct ieee80211vap *);
353 void	ieee80211_sync_curchan(struct ieee80211com *);
354 void	ieee80211_setupcurchan(struct ieee80211com *,
355 	    struct ieee80211_channel *);
356 void	ieee80211_setcurchan(struct ieee80211com *, struct ieee80211_channel *);
357 void	ieee80211_update_chw(struct ieee80211com *);
358 int	ieee80211_ibss_merge_check(struct ieee80211_node *);
359 int	ieee80211_ibss_node_check_new(struct ieee80211_node *ni,
360 	    const struct ieee80211_scanparams *);
361 int	ieee80211_ibss_merge(struct ieee80211_node *);
362 struct ieee80211_scan_entry;
363 int	ieee80211_sta_join(struct ieee80211vap *, struct ieee80211_channel *,
364 		const struct ieee80211_scan_entry *);
365 void	ieee80211_sta_leave(struct ieee80211_node *);
366 void	ieee80211_node_deauth(struct ieee80211_node *, int);
367 
368 int	ieee80211_ies_init(struct ieee80211_ies *, const uint8_t *, int);
369 void	ieee80211_ies_cleanup(struct ieee80211_ies *);
370 void	ieee80211_ies_expand(struct ieee80211_ies *);
371 #define	ieee80211_ies_setie(_ies, _ie, _off) do {		\
372 	(_ies)._ie = (_ies).data + (_off);			\
373 } while (0)
374 
375 /*
376  * Table of ieee80211_node instances.  Each ieee80211com
377  * has one that holds association stations (when operating
378  * as an ap) or neighbors (in ibss mode).
379  *
380  * XXX embed this in ieee80211com instead of indirect?
381  */
382 struct ieee80211_node_table {
383 	struct ieee80211com	*nt_ic;		/* back reference */
384 	ieee80211_node_lock_t	nt_nodelock;	/* on node table */
385 	TAILQ_HEAD(, ieee80211_node) nt_node;	/* information of all nodes */
386 	LIST_HEAD(, ieee80211_node) nt_hash[IEEE80211_NODE_HASHSIZE];
387 	int			nt_count;	/* number of nodes */
388 	struct ieee80211_node	**nt_keyixmap;	/* key ix -> node map */
389 	int			nt_keyixmax;	/* keyixmap size */
390 	const char		*nt_name;	/* table name for debug msgs */
391 	int			nt_inact_init;	/* initial node inact setting */
392 };
393 
394 struct ieee80211_node *ieee80211_alloc_node(struct ieee80211_node_table *,
395 		struct ieee80211vap *,
396 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
397 struct ieee80211_node *ieee80211_tmp_node(struct ieee80211vap *,
398 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
399 struct ieee80211_node *ieee80211_dup_bss(struct ieee80211vap *,
400 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
401 struct ieee80211_node *ieee80211_node_create_wds(struct ieee80211vap *,
402 		const uint8_t bssid[IEEE80211_ADDR_LEN],
403 		struct ieee80211_channel *);
404 #ifdef IEEE80211_DEBUG_REFCNT
405 void	ieee80211_free_node_debug(struct ieee80211_node *,
406 		const char *func, int line);
407 struct ieee80211_node *ieee80211_find_node_locked_debug(
408 		struct ieee80211_node_table *,
409 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
410 		const char *func, int line);
411 struct ieee80211_node *ieee80211_find_node_debug(struct ieee80211_node_table *,
412 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
413 		const char *func, int line);
414 struct ieee80211_node *ieee80211_find_vap_node_locked_debug(
415 		struct ieee80211_node_table *,
416 		const struct ieee80211vap *vap,
417 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
418 		const char *func, int line);
419 struct ieee80211_node *ieee80211_find_vap_node_debug(
420 		struct ieee80211_node_table *,
421 		const struct ieee80211vap *vap,
422 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
423 		const char *func, int line);
424 struct ieee80211_node * ieee80211_find_rxnode_debug(struct ieee80211com *,
425 		const struct ieee80211_frame_min *,
426 		const char *func, int line);
427 struct ieee80211_node * ieee80211_find_rxnode_withkey_debug(
428 		struct ieee80211com *,
429 		const struct ieee80211_frame_min *, uint16_t keyix,
430 		const char *func, int line);
431 struct ieee80211_node *ieee80211_find_txnode_debug(struct ieee80211vap *,
432 		const uint8_t *,
433 		const char *func, int line);
434 #define	ieee80211_free_node(ni) \
435 	ieee80211_free_node_debug(ni, __func__, __LINE__)
436 #define	ieee80211_find_node_locked(nt, mac) \
437 	ieee80211_find_node_locked_debug(nt, mac, __func__, __LINE__)
438 #define	ieee80211_find_node(nt, mac) \
439 	ieee80211_find_node_debug(nt, mac, __func__, __LINE__)
440 #define	ieee80211_find_vap_node_locked(nt, vap, mac) \
441 	ieee80211_find_vap_node_locked_debug(nt, vap, mac, __func__, __LINE__)
442 #define	ieee80211_find_vap_node(nt, vap, mac) \
443 	ieee80211_find_vap_node_debug(nt, vap, mac, __func__, __LINE__)
444 #define	ieee80211_find_rxnode(ic, wh) \
445 	ieee80211_find_rxnode_debug(ic, wh, __func__, __LINE__)
446 #define	ieee80211_find_rxnode_withkey(ic, wh, keyix) \
447 	ieee80211_find_rxnode_withkey_debug(ic, wh, keyix, __func__, __LINE__)
448 #define	ieee80211_find_txnode(vap, mac) \
449 	ieee80211_find_txnode_debug(vap, mac, __func__, __LINE__)
450 #else
451 void	ieee80211_free_node(struct ieee80211_node *);
452 struct ieee80211_node *ieee80211_find_node_locked(struct ieee80211_node_table *,
453 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
454 struct ieee80211_node *ieee80211_find_node(struct ieee80211_node_table *,
455 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
456 struct ieee80211_node *ieee80211_find_vap_node_locked(
457 		struct ieee80211_node_table *, const struct ieee80211vap *,
458 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
459 struct ieee80211_node *ieee80211_find_vap_node(
460 		struct ieee80211_node_table *, const struct ieee80211vap *,
461 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
462 struct ieee80211_node * ieee80211_find_rxnode(struct ieee80211com *,
463 		const struct ieee80211_frame_min *);
464 struct ieee80211_node * ieee80211_find_rxnode_withkey(struct ieee80211com *,
465 		const struct ieee80211_frame_min *, uint16_t keyix);
466 struct ieee80211_node *ieee80211_find_txnode(struct ieee80211vap *,
467 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
468 #endif
469 int	ieee80211_node_delucastkey(struct ieee80211_node *);
470 void	ieee80211_node_timeout(void *arg);
471 
472 typedef void ieee80211_iter_func(void *, struct ieee80211_node *);
473 int	ieee80211_iterate_nodes_vap(struct ieee80211_node_table *,
474 		struct ieee80211vap *, ieee80211_iter_func *, void *);
475 void	ieee80211_iterate_nodes(struct ieee80211_node_table *,
476 		ieee80211_iter_func *, void *);
477 
478 void	ieee80211_notify_erp(struct ieee80211com *);
479 void	ieee80211_dump_node(struct ieee80211_node_table *,
480 		struct ieee80211_node *);
481 void	ieee80211_dump_nodes(struct ieee80211_node_table *);
482 
483 struct ieee80211_node *ieee80211_fakeup_adhoc_node(struct ieee80211vap *,
484 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
485 struct ieee80211_scanparams;
486 void	ieee80211_init_neighbor(struct ieee80211_node *,
487 		const struct ieee80211_frame *,
488 		const struct ieee80211_scanparams *);
489 struct ieee80211_node *ieee80211_add_neighbor(struct ieee80211vap *,
490 		const struct ieee80211_frame *,
491 		const struct ieee80211_scanparams *);
492 void	ieee80211_node_join(struct ieee80211_node *,int);
493 void	ieee80211_node_leave(struct ieee80211_node *);
494 int8_t	ieee80211_getrssi(struct ieee80211vap *);
495 void	ieee80211_getsignal(struct ieee80211vap *, int8_t *, int8_t *);
496 #endif /* _NET80211_IEEE80211_NODE_H_ */
497