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
65struct ieee80211_node_table;
66struct ieee80211com;
67struct ieee80211vap;
68struct 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 */
76struct 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 */
100enum 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 */
117struct 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};
265MALLOC_DECLARE(M_80211_NODE);
266MALLOC_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
322void	ieee80211_node_attach(struct ieee80211com *);
323void	ieee80211_node_lateattach(struct ieee80211com *);
324void	ieee80211_node_detach(struct ieee80211com *);
325void	ieee80211_node_vattach(struct ieee80211vap *);
326void	ieee80211_node_latevattach(struct ieee80211vap *);
327void	ieee80211_node_vdetach(struct ieee80211vap *);
328
329static __inline int
330ieee80211_node_is_authorized(const struct ieee80211_node *ni)
331{
332	return (ni->ni_flags & IEEE80211_NODE_AUTH);
333}
334
335void	ieee80211_node_authorize(struct ieee80211_node *);
336void	ieee80211_node_unauthorize(struct ieee80211_node *);
337
338void	ieee80211_node_setuptxparms(struct ieee80211_node *);
339void	ieee80211_node_set_chan(struct ieee80211_node *,
340		struct ieee80211_channel *);
341void	ieee80211_create_ibss(struct ieee80211vap*, struct ieee80211_channel *);
342void	ieee80211_reset_bss(struct ieee80211vap *);
343void	ieee80211_sync_curchan(struct ieee80211com *);
344void	ieee80211_setupcurchan(struct ieee80211com *,
345	    struct ieee80211_channel *);
346void	ieee80211_setcurchan(struct ieee80211com *, struct ieee80211_channel *);
347void	ieee80211_update_chw(struct ieee80211com *);
348int	ieee80211_ibss_merge_check(struct ieee80211_node *);
349int	ieee80211_ibss_node_check_new(struct ieee80211_node *ni,
350	    const struct ieee80211_scanparams *);
351int	ieee80211_ibss_merge(struct ieee80211_node *);
352struct ieee80211_scan_entry;
353int	ieee80211_sta_join(struct ieee80211vap *, struct ieee80211_channel *,
354		const struct ieee80211_scan_entry *);
355void	ieee80211_sta_leave(struct ieee80211_node *);
356void	ieee80211_node_deauth(struct ieee80211_node *, int);
357
358int	ieee80211_ies_init(struct ieee80211_ies *, const uint8_t *, int);
359void	ieee80211_ies_cleanup(struct ieee80211_ies *);
360void	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 */
372struct 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
384struct ieee80211_node *ieee80211_tmp_node(struct ieee80211vap *,
385		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
386struct ieee80211_node *ieee80211_dup_bss(struct ieee80211vap *,
387		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
388struct 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 */
393struct ieee80211_node *_ieee80211_ref_node(struct ieee80211_node *,
394		const char *func, int line);
395void	_ieee80211_free_node(struct ieee80211_node *,
396		const char *func, int line);
397struct 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);
401struct ieee80211_node *_ieee80211_find_node(struct ieee80211_node_table *,
402		const uint8_t macaddr[IEEE80211_ADDR_LEN],
403		const char *func, int line);
404struct 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);
409struct 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);
414struct ieee80211_node *_ieee80211_find_rxnode(struct ieee80211com *,
415		const struct ieee80211_frame_min *,
416		const char *func, int line);
417struct ieee80211_node *_ieee80211_find_rxnode_withkey(
418		struct ieee80211com *,
419		const struct ieee80211_frame_min *, uint16_t keyix,
420		const char *func, int line);
421struct 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
443int	ieee80211_node_delucastkey(struct ieee80211_node *);
444void	ieee80211_node_timeout(void *arg);
445
446typedef void ieee80211_iter_func(void *, struct ieee80211_node *);
447int	ieee80211_iterate_nodes_vap(struct ieee80211_node_table *,
448		struct ieee80211vap *, ieee80211_iter_func *, void *);
449void	ieee80211_iterate_nodes(struct ieee80211_node_table *,
450		ieee80211_iter_func *, void *);
451
452void	ieee80211_notify_erp_locked(struct ieee80211com *);
453void	ieee80211_dump_node(struct ieee80211_node_table *,
454		struct ieee80211_node *);
455void	ieee80211_dump_nodes(struct ieee80211_node_table *);
456
457struct ieee80211_node *ieee80211_fakeup_adhoc_node(struct ieee80211vap *,
458		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
459struct ieee80211_scanparams;
460void	ieee80211_init_neighbor(struct ieee80211_node *,
461		const struct ieee80211_frame *,
462		const struct ieee80211_scanparams *);
463struct ieee80211_node *ieee80211_add_neighbor(struct ieee80211vap *,
464		const struct ieee80211_frame *,
465		const struct ieee80211_scanparams *);
466void	ieee80211_node_join(struct ieee80211_node *,int);
467void	ieee80211_node_leave(struct ieee80211_node *);
468int8_t	ieee80211_getrssi(struct ieee80211vap *);
469void	ieee80211_getsignal(struct ieee80211vap *, int8_t *, int8_t *);
470#endif /* _NET80211_IEEE80211_NODE_H_ */
471