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: releng/12.0/sys/net80211/ieee80211_node.h 326272 2017-11-27 15:23:17Z pfg $
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
67struct ieee80211_node_table;
68struct ieee80211com;
69struct ieee80211vap;
70struct ieee80211_scanparams;
71
72/*
73 * Information element (IE) ``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 */
78struct 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 */
102enum 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 */
119struct 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#define	IEEE80211_NODE_UAPSD	0x400000	/* U-APSD power save enabled */
150	uint16_t		ni_associd;	/* association ID */
151	uint16_t		ni_vlan;	/* vlan tag */
152	uint16_t		ni_txpower;	/* current transmit power */
153	uint8_t			ni_authmode;	/* authentication algorithm */
154	uint8_t			ni_ath_flags;	/* Atheros feature flags */
155	/* NB: These must have the same values as IEEE80211_ATHC_* */
156#define IEEE80211_NODE_TURBOP	0x0001		/* Turbo prime enable */
157#define IEEE80211_NODE_COMP	0x0002		/* Compresssion enable */
158#define IEEE80211_NODE_FF	0x0004          /* Fast Frame capable */
159#define IEEE80211_NODE_XR	0x0008		/* Atheros WME enable */
160#define IEEE80211_NODE_AR	0x0010		/* AR capable */
161#define IEEE80211_NODE_BOOST	0x0080		/* Dynamic Turbo boosted */
162	uint16_t		ni_ath_defkeyix;/* Atheros def key index */
163	const struct ieee80211_txparam *ni_txparms;
164	uint32_t		ni_jointime;	/* time of join (secs) */
165	uint32_t		*ni_challenge;	/* shared-key challenge */
166	struct ieee80211_ies	ni_ies;		/* captured ie's */
167						/* tx seq per-tid */
168	ieee80211_seq		ni_txseqs[IEEE80211_TID_SIZE];
169						/* rx seq previous per-tid*/
170	ieee80211_seq		ni_rxseqs[IEEE80211_TID_SIZE];
171	uint32_t		ni_rxfragstamp;	/* time stamp of last rx frag */
172	struct mbuf		*ni_rxfrag[3];	/* rx frag reassembly */
173	struct ieee80211_key	ni_ucastkey;	/* unicast key */
174
175	/* hardware */
176	uint32_t		ni_avgrssi;	/* recv ssi state */
177	int8_t			ni_noise;	/* noise floor */
178
179	/* mimo statistics */
180	uint32_t		ni_mimo_rssi_ctl[IEEE80211_MAX_CHAINS];
181	uint32_t		ni_mimo_rssi_ext[IEEE80211_MAX_CHAINS];
182	uint8_t			ni_mimo_noise_ctl[IEEE80211_MAX_CHAINS];
183	uint8_t			ni_mimo_noise_ext[IEEE80211_MAX_CHAINS];
184	uint8_t			ni_mimo_chains;
185
186	/* header */
187	uint8_t			ni_macaddr[IEEE80211_ADDR_LEN];
188	uint8_t			ni_bssid[IEEE80211_ADDR_LEN];
189
190	/* beacon, probe response */
191	union {
192		uint8_t		data[8];
193		u_int64_t	tsf;
194	} ni_tstamp;				/* from last rcv'd beacon */
195	uint16_t		ni_intval;	/* beacon interval */
196	uint16_t		ni_capinfo;	/* capabilities */
197	uint8_t			ni_esslen;
198	uint8_t			ni_essid[IEEE80211_NWID_LEN];
199	struct ieee80211_rateset ni_rates;	/* negotiated rate set */
200	struct ieee80211_channel *ni_chan;
201	uint16_t		ni_fhdwell;	/* FH only */
202	uint8_t			ni_fhindex;	/* FH only */
203	uint16_t		ni_erp;		/* ERP from beacon/probe resp */
204	uint16_t		ni_timoff;	/* byte offset to TIM ie */
205	uint8_t			ni_dtim_period;	/* DTIM period */
206	uint8_t			ni_dtim_count;	/* DTIM count for last bcn */
207
208	/* 11s state */
209	uint8_t			ni_meshidlen;
210	uint8_t			ni_meshid[IEEE80211_MESHID_LEN];
211	enum ieee80211_mesh_mlstate ni_mlstate;	/* peering management state */
212	uint16_t		ni_mllid;	/* link local ID */
213	uint16_t		ni_mlpid;	/* link peer ID */
214	struct callout		ni_mltimer;	/* link mesh timer */
215	uint8_t			ni_mlrcnt;	/* link mesh retry counter */
216	uint8_t			ni_mltval;	/* link mesh timer value */
217	struct callout		ni_mlhtimer;	/* link mesh backoff timer */
218	uint8_t			ni_mlhcnt;	/* link mesh holding counter */
219
220	/* 11n state */
221	uint16_t		ni_htcap;	/* HT capabilities */
222	uint8_t			ni_htparam;	/* HT params */
223	uint8_t			ni_htctlchan;	/* HT control channel */
224	uint8_t			ni_ht2ndchan;	/* HT 2nd channel */
225	uint8_t			ni_htopmode;	/* HT operating mode */
226	uint8_t			ni_htstbc;	/* HT */
227	uint8_t			ni_chw;		/* negotiated channel width */
228	struct ieee80211_htrateset ni_htrates;	/* negotiated ht rate set */
229	struct ieee80211_tx_ampdu ni_tx_ampdu[WME_NUM_TID];
230	struct ieee80211_rx_ampdu ni_rx_ampdu[WME_NUM_TID];
231
232	/* VHT state */
233	uint32_t		ni_vhtcap;
234	uint16_t		ni_vht_basicmcs;
235	uint16_t		ni_vht_pad2;
236	struct ieee80211_vht_mcs_info	ni_vht_mcsinfo;
237	uint8_t			ni_vht_chan1;	/* 20/40/80/160 - VHT chan1 */
238	uint8_t			ni_vht_chan2;	/* 80+80 - VHT chan2 */
239	uint8_t			ni_vht_chanwidth;	/* IEEE80211_VHT_CHANWIDTH_ */
240	uint8_t			ni_vht_pad1;
241	uint32_t		ni_vht_spare[8];
242
243	/* fast-frames state */
244	struct mbuf *		ni_tx_superg[WME_NUM_TID];
245
246	/* others */
247	short			ni_inact;	/* inactivity mark count */
248	short			ni_inact_reload;/* inactivity reload value */
249	int			ni_txrate;	/* legacy rate/MCS */
250	struct ieee80211_psq	ni_psq;		/* power save queue */
251	struct ieee80211_nodestats ni_stats;	/* per-node statistics */
252
253	struct ieee80211vap	*ni_wdsvap;	/* associated WDS vap */
254	void			*ni_rctls;	/* private ratectl state */
255
256	/* quiet time IE state for the given node */
257	uint32_t		ni_quiet_ie_set;	/* Quiet time IE was seen */
258	struct			ieee80211_quiet_ie ni_quiet_ie;	/* last seen quiet IE */
259
260	/* U-APSD */
261	uint8_t			ni_uapsd;	/* U-APSD per-node flags matching WMM STA QoS Info field */
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
322static __inline struct ieee80211_node *
323ieee80211_ref_node(struct ieee80211_node *ni)
324{
325	ieee80211_node_incref(ni);
326	return ni;
327}
328
329static __inline void
330ieee80211_unref_node(struct ieee80211_node **ni)
331{
332	ieee80211_node_decref(*ni);
333	*ni = NULL;			/* guard against use */
334}
335
336void	ieee80211_node_attach(struct ieee80211com *);
337void	ieee80211_node_lateattach(struct ieee80211com *);
338void	ieee80211_node_detach(struct ieee80211com *);
339void	ieee80211_node_vattach(struct ieee80211vap *);
340void	ieee80211_node_latevattach(struct ieee80211vap *);
341void	ieee80211_node_vdetach(struct ieee80211vap *);
342
343static __inline int
344ieee80211_node_is_authorized(const struct ieee80211_node *ni)
345{
346	return (ni->ni_flags & IEEE80211_NODE_AUTH);
347}
348
349void	ieee80211_node_authorize(struct ieee80211_node *);
350void	ieee80211_node_unauthorize(struct ieee80211_node *);
351
352void	ieee80211_node_setuptxparms(struct ieee80211_node *);
353void	ieee80211_node_set_chan(struct ieee80211_node *,
354		struct ieee80211_channel *);
355void	ieee80211_create_ibss(struct ieee80211vap*, struct ieee80211_channel *);
356void	ieee80211_reset_bss(struct ieee80211vap *);
357void	ieee80211_sync_curchan(struct ieee80211com *);
358void	ieee80211_setupcurchan(struct ieee80211com *,
359	    struct ieee80211_channel *);
360void	ieee80211_setcurchan(struct ieee80211com *, struct ieee80211_channel *);
361void	ieee80211_update_chw(struct ieee80211com *);
362int	ieee80211_ibss_merge_check(struct ieee80211_node *);
363int	ieee80211_ibss_node_check_new(struct ieee80211_node *ni,
364	    const struct ieee80211_scanparams *);
365int	ieee80211_ibss_merge(struct ieee80211_node *);
366struct ieee80211_scan_entry;
367int	ieee80211_sta_join(struct ieee80211vap *, struct ieee80211_channel *,
368		const struct ieee80211_scan_entry *);
369void	ieee80211_sta_leave(struct ieee80211_node *);
370void	ieee80211_node_deauth(struct ieee80211_node *, int);
371
372int	ieee80211_ies_init(struct ieee80211_ies *, const uint8_t *, int);
373void	ieee80211_ies_cleanup(struct ieee80211_ies *);
374void	ieee80211_ies_expand(struct ieee80211_ies *);
375#define	ieee80211_ies_setie(_ies, _ie, _off) do {		\
376	(_ies)._ie = (_ies).data + (_off);			\
377} while (0)
378
379/*
380 * Table of ieee80211_node instances.  Each ieee80211com
381 * has one that holds association stations (when operating
382 * as an ap) or neighbors (in ibss mode).
383 *
384 * XXX embed this in ieee80211com instead of indirect?
385 */
386struct ieee80211_node_table {
387	struct ieee80211com	*nt_ic;		/* back reference */
388	ieee80211_node_lock_t	nt_nodelock;	/* on node table */
389	TAILQ_HEAD(, ieee80211_node) nt_node;	/* information of all nodes */
390	LIST_HEAD(, ieee80211_node) nt_hash[IEEE80211_NODE_HASHSIZE];
391	int			nt_count;	/* number of nodes */
392	struct ieee80211_node	**nt_keyixmap;	/* key ix -> node map */
393	int			nt_keyixmax;	/* keyixmap size */
394	const char		*nt_name;	/* table name for debug msgs */
395	int			nt_inact_init;	/* initial node inact setting */
396};
397
398struct ieee80211_node *ieee80211_alloc_node(struct ieee80211_node_table *,
399		struct ieee80211vap *,
400		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
401struct ieee80211_node *ieee80211_tmp_node(struct ieee80211vap *,
402		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
403struct ieee80211_node *ieee80211_dup_bss(struct ieee80211vap *,
404		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
405struct ieee80211_node *ieee80211_node_create_wds(struct ieee80211vap *,
406		const uint8_t bssid[IEEE80211_ADDR_LEN],
407		struct ieee80211_channel *);
408#ifdef IEEE80211_DEBUG_REFCNT
409void	ieee80211_free_node_debug(struct ieee80211_node *,
410		const char *func, int line);
411struct ieee80211_node *ieee80211_find_node_locked_debug(
412		struct ieee80211_node_table *,
413		const uint8_t macaddr[IEEE80211_ADDR_LEN],
414		const char *func, int line);
415struct ieee80211_node *ieee80211_find_node_debug(struct ieee80211_node_table *,
416		const uint8_t macaddr[IEEE80211_ADDR_LEN],
417		const char *func, int line);
418struct ieee80211_node *ieee80211_find_vap_node_locked_debug(
419		struct ieee80211_node_table *,
420		const struct ieee80211vap *vap,
421		const uint8_t macaddr[IEEE80211_ADDR_LEN],
422		const char *func, int line);
423struct ieee80211_node *ieee80211_find_vap_node_debug(
424		struct ieee80211_node_table *,
425		const struct ieee80211vap *vap,
426		const uint8_t macaddr[IEEE80211_ADDR_LEN],
427		const char *func, int line);
428struct ieee80211_node * ieee80211_find_rxnode_debug(struct ieee80211com *,
429		const struct ieee80211_frame_min *,
430		const char *func, int line);
431struct ieee80211_node * ieee80211_find_rxnode_withkey_debug(
432		struct ieee80211com *,
433		const struct ieee80211_frame_min *, uint16_t keyix,
434		const char *func, int line);
435struct ieee80211_node *ieee80211_find_txnode_debug(struct ieee80211vap *,
436		const uint8_t *,
437		const char *func, int line);
438#define	ieee80211_free_node(ni) \
439	ieee80211_free_node_debug(ni, __func__, __LINE__)
440#define	ieee80211_find_node_locked(nt, mac) \
441	ieee80211_find_node_locked_debug(nt, mac, __func__, __LINE__)
442#define	ieee80211_find_node(nt, mac) \
443	ieee80211_find_node_debug(nt, mac, __func__, __LINE__)
444#define	ieee80211_find_vap_node_locked(nt, vap, mac) \
445	ieee80211_find_vap_node_locked_debug(nt, vap, mac, __func__, __LINE__)
446#define	ieee80211_find_vap_node(nt, vap, mac) \
447	ieee80211_find_vap_node_debug(nt, vap, mac, __func__, __LINE__)
448#define	ieee80211_find_rxnode(ic, wh) \
449	ieee80211_find_rxnode_debug(ic, wh, __func__, __LINE__)
450#define	ieee80211_find_rxnode_withkey(ic, wh, keyix) \
451	ieee80211_find_rxnode_withkey_debug(ic, wh, keyix, __func__, __LINE__)
452#define	ieee80211_find_txnode(vap, mac) \
453	ieee80211_find_txnode_debug(vap, mac, __func__, __LINE__)
454#else
455void	ieee80211_free_node(struct ieee80211_node *);
456struct ieee80211_node *ieee80211_find_node_locked(struct ieee80211_node_table *,
457		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
458struct ieee80211_node *ieee80211_find_node(struct ieee80211_node_table *,
459		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
460struct ieee80211_node *ieee80211_find_vap_node_locked(
461		struct ieee80211_node_table *, const struct ieee80211vap *,
462		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
463struct ieee80211_node *ieee80211_find_vap_node(
464		struct ieee80211_node_table *, const struct ieee80211vap *,
465		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
466struct ieee80211_node * ieee80211_find_rxnode(struct ieee80211com *,
467		const struct ieee80211_frame_min *);
468struct ieee80211_node * ieee80211_find_rxnode_withkey(struct ieee80211com *,
469		const struct ieee80211_frame_min *, uint16_t keyix);
470struct ieee80211_node *ieee80211_find_txnode(struct ieee80211vap *,
471		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
472#endif
473int	ieee80211_node_delucastkey(struct ieee80211_node *);
474void	ieee80211_node_timeout(void *arg);
475
476typedef void ieee80211_iter_func(void *, struct ieee80211_node *);
477int	ieee80211_iterate_nodes_vap(struct ieee80211_node_table *,
478		struct ieee80211vap *, ieee80211_iter_func *, void *);
479void	ieee80211_iterate_nodes(struct ieee80211_node_table *,
480		ieee80211_iter_func *, void *);
481
482void	ieee80211_notify_erp_locked(struct ieee80211com *);
483void	ieee80211_dump_node(struct ieee80211_node_table *,
484		struct ieee80211_node *);
485void	ieee80211_dump_nodes(struct ieee80211_node_table *);
486
487struct ieee80211_node *ieee80211_fakeup_adhoc_node(struct ieee80211vap *,
488		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
489struct ieee80211_scanparams;
490void	ieee80211_init_neighbor(struct ieee80211_node *,
491		const struct ieee80211_frame *,
492		const struct ieee80211_scanparams *);
493struct ieee80211_node *ieee80211_add_neighbor(struct ieee80211vap *,
494		const struct ieee80211_frame *,
495		const struct ieee80211_scanparams *);
496void	ieee80211_node_join(struct ieee80211_node *,int);
497void	ieee80211_node_leave(struct ieee80211_node *);
498int8_t	ieee80211_getrssi(struct ieee80211vap *);
499void	ieee80211_getsignal(struct ieee80211vap *, int8_t *, int8_t *);
500#endif /* _NET80211_IEEE80211_NODE_H_ */
501