1 /*-
2  * Copyright (c) 2001 Atsushi Onoe
3  * Copyright (c) 2002-2009 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_NODE_H_
29 #define _NET80211_IEEE80211_NODE_H_
30 
31 #include <netproto/802_11/ieee80211_ioctl.h>		/* for ieee80211_nodestats */
32 #include <netproto/802_11/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 it's 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 
69 /*
70  * Information element ``blob''.  We use this structure
71  * to capture management frame payloads that need to be
72  * retained.  Information elements within the payload that
73  * we need to consult have references recorded.
74  */
75 struct ieee80211_ies {
76 	/* the following are either NULL or point within data */
77 	uint8_t	*wpa_ie;	/* captured WPA ie */
78 	uint8_t	*rsn_ie;	/* captured RSN ie */
79 	uint8_t	*wme_ie;	/* captured WME ie */
80 	uint8_t	*ath_ie;	/* captured Atheros ie */
81 	uint8_t	*htcap_ie;	/* captured HTCAP ie */
82 	uint8_t	*htinfo_ie;	/* captured HTINFO ie */
83 	uint8_t	*tdma_ie;	/* captured TDMA ie */
84 	uint8_t *meshid_ie;	/* captured MESH ID ie */
85 	uint8_t	*spare[4];
86 	/* NB: these must be the last members of this structure */
87 	uint8_t	*data;		/* frame data > 802.11 header */
88 	int	len;		/* data size in bytes */
89 };
90 
91 /*
92  * 802.11s (Mesh) Peer Link FSM state.
93  */
94 enum ieee80211_mesh_mlstate {
95 	IEEE80211_NODE_MESH_IDLE	= 0,
96 	IEEE80211_NODE_MESH_OPENSNT	= 1,	/* open frame sent */
97 	IEEE80211_NODE_MESH_OPENRCV	= 2,	/* open frame received */
98 	IEEE80211_NODE_MESH_CONFIRMRCV	= 3,	/* confirm frame received */
99 	IEEE80211_NODE_MESH_ESTABLISHED	= 4,	/* link established */
100 	IEEE80211_NODE_MESH_HOLDING	= 5,	/* link closing */
101 };
102 #define	IEEE80211_MESH_MLSTATE_BITS \
103 	"\20\1IDLE\2OPENSNT\2OPENRCV\3CONFIRMRCV\4ESTABLISHED\5HOLDING"
104 
105 /*
106  * Node specific information.  Note that drivers are expected
107  * to derive from this structure to add device-specific per-node
108  * state.  This is done by overriding the ic_node_* methods in
109  * the ieee80211com structure.
110  */
111 struct ieee80211_node {
112 	struct ieee80211vap	*ni_vap;	/* associated vap */
113 	struct ieee80211com	*ni_ic;		/* copy from vap to save deref*/
114 	struct ieee80211_node_table *ni_table;	/* NB: may be NULL */
115 	TAILQ_ENTRY(ieee80211_node) ni_list;	/* list of all nodes */
116 	LIST_ENTRY(ieee80211_node) ni_hash;	/* hash collision list */
117 	u_int			ni_refcnt;	/* count of held references */
118 	u_int			ni_scangen;	/* gen# for timeout scan */
119 	u_int			ni_flags;
120 #define	IEEE80211_NODE_AUTH	0x000001	/* authorized for data */
121 #define	IEEE80211_NODE_QOS	0x000002	/* QoS enabled */
122 #define	IEEE80211_NODE_ERP	0x000004	/* ERP enabled */
123 /* NB: this must have the same value as IEEE80211_FC1_PWR_MGT */
124 #define	IEEE80211_NODE_PWR_MGT	0x000010	/* power save mode enabled */
125 #define	IEEE80211_NODE_AREF	0x000020	/* authentication ref held */
126 #define	IEEE80211_NODE_HT	0x000040	/* HT enabled */
127 #define	IEEE80211_NODE_HTCOMPAT	0x000080	/* HT setup w/ vendor OUI's */
128 #define	IEEE80211_NODE_WPS	0x000100	/* WPS association */
129 #define	IEEE80211_NODE_TSN	0x000200	/* TSN association */
130 #define	IEEE80211_NODE_AMPDU_RX	0x000400	/* AMPDU rx enabled */
131 #define	IEEE80211_NODE_AMPDU_TX	0x000800	/* AMPDU tx enabled */
132 #define	IEEE80211_NODE_MIMO_PS	0x001000	/* MIMO power save enabled */
133 #define	IEEE80211_NODE_MIMO_RTS	0x002000	/* send RTS in MIMO PS */
134 #define	IEEE80211_NODE_RIFS	0x004000	/* RIFS enabled */
135 #define	IEEE80211_NODE_SGI20	0x008000	/* Short GI in HT20 enabled */
136 #define	IEEE80211_NODE_SGI40	0x010000	/* Short GI in HT40 enabled */
137 #define	IEEE80211_NODE_ASSOCID	0x020000	/* xmit requires associd */
138 #define	IEEE80211_NODE_AMSDU_RX	0x040000	/* AMSDU rx enabled */
139 #define	IEEE80211_NODE_AMSDU_TX	0x080000	/* AMSDU tx enabled */
140 	uint16_t		ni_associd;	/* association ID */
141 	uint16_t		ni_vlan;	/* vlan tag */
142 	uint16_t		ni_txpower;	/* current transmit power */
143 	uint8_t			ni_authmode;	/* authentication algorithm */
144 	uint8_t			ni_ath_flags;	/* Atheros feature flags */
145 	/* NB: These must have the same values as IEEE80211_ATHC_* */
146 #define IEEE80211_NODE_TURBOP	0x0001		/* Turbo prime enable */
147 #define IEEE80211_NODE_COMP	0x0002		/* Compresssion enable */
148 #define IEEE80211_NODE_FF	0x0004          /* Fast Frame capable */
149 #define IEEE80211_NODE_XR	0x0008		/* Atheros WME enable */
150 #define IEEE80211_NODE_AR	0x0010		/* AR capable */
151 #define IEEE80211_NODE_BOOST	0x0080		/* Dynamic Turbo boosted */
152 	uint16_t		ni_ath_defkeyix;/* Atheros def key index */
153 	const struct ieee80211_txparam *ni_txparms;
154 	uint32_t		ni_jointime;	/* time of join (secs) */
155 	uint32_t		*ni_challenge;	/* shared-key challenge */
156 	struct ieee80211_ies	ni_ies;		/* captured ie's */
157 						/* tx seq per-tid */
158 	ieee80211_seq		ni_txseqs[IEEE80211_TID_SIZE];
159 						/* rx seq previous per-tid*/
160 	ieee80211_seq		ni_rxseqs[IEEE80211_TID_SIZE];
161 	uint32_t		ni_rxfragstamp;	/* time stamp of last rx frag */
162 	struct mbuf		*ni_rxfrag[3];	/* rx frag reassembly */
163 	struct ieee80211_key	ni_ucastkey;	/* unicast key */
164 
165 	/* hardware */
166 	uint32_t		ni_avgrssi;	/* recv ssi state */
167 	int8_t			ni_noise;	/* noise floor */
168 
169 	/* mimo statistics */
170 	uint32_t		ni_mimo_rssi_ctl[IEEE80211_MAX_CHAINS];
171 	uint32_t		ni_mimo_rssi_ext[IEEE80211_MAX_CHAINS];
172 	uint8_t			ni_mimo_noise_ctl[IEEE80211_MAX_CHAINS];
173 	uint8_t			ni_mimo_noise_ext[IEEE80211_MAX_CHAINS];
174 	uint8_t			ni_mimo_chains;
175 
176 	/* header */
177 	uint8_t			ni_macaddr[IEEE80211_ADDR_LEN];
178 	uint8_t			ni_bssid[IEEE80211_ADDR_LEN];
179 
180 	/* beacon, probe response */
181 	union {
182 		uint8_t		data[8];
183 		u_int64_t	tsf;
184 	} ni_tstamp;				/* from last rcv'd beacon */
185 	uint16_t		ni_intval;	/* beacon interval */
186 	uint16_t		ni_capinfo;	/* capabilities */
187 	uint8_t			ni_esslen;
188 	uint8_t			ni_essid[IEEE80211_NWID_LEN];
189 	struct ieee80211_rateset ni_rates;	/* negotiated rate set */
190 	struct ieee80211_channel *ni_chan;
191 	uint16_t		ni_fhdwell;	/* FH only */
192 	uint8_t			ni_fhindex;	/* FH only */
193 	uint16_t		ni_erp;		/* ERP from beacon/probe resp */
194 	uint16_t		ni_timoff;	/* byte offset to TIM ie */
195 	uint8_t			ni_dtim_period;	/* DTIM period */
196 	uint8_t			ni_dtim_count;	/* DTIM count for last bcn */
197 
198 	/* 11s state */
199 	uint8_t			ni_meshidlen;
200 	uint8_t			ni_meshid[IEEE80211_MESHID_LEN];
201 	enum ieee80211_mesh_mlstate ni_mlstate;	/* peering management state */
202 	uint16_t		ni_mllid;	/* link local ID */
203 	uint16_t		ni_mlpid;	/* link peer ID */
204 	struct callout		ni_mltimer;	/* link mesh timer */
205 	uint8_t			ni_mlrcnt;	/* link mesh retry counter */
206 	uint8_t			ni_mltval;	/* link mesh timer value */
207 	struct callout		ni_mlhtimer;	/* link mesh backoff timer */
208 	uint8_t			ni_mlhcnt;	/* link mesh holding counter */
209 
210 	/* 11n state */
211 	uint16_t		ni_htcap;	/* HT capabilities */
212 	uint8_t			ni_htparam;	/* HT params */
213 	uint8_t			ni_htctlchan;	/* HT control channel */
214 	uint8_t			ni_ht2ndchan;	/* HT 2nd channel */
215 	uint8_t			ni_htopmode;	/* HT operating mode */
216 	uint8_t			ni_htstbc;	/* HT */
217 	uint8_t			ni_chw;		/* negotiated channel width */
218 	struct ieee80211_htrateset ni_htrates;	/* negotiated ht rate set */
219 	struct ieee80211_tx_ampdu ni_tx_ampdu[WME_NUM_TID];
220 	struct ieee80211_rx_ampdu ni_rx_ampdu[WME_NUM_TID];
221 
222 	/* fast-frames state */
223 	struct mbuf *		ni_tx_superg[WME_NUM_TID];
224 
225 	/* others */
226 	short			ni_inact;	/* inactivity mark count */
227 	short			ni_inact_reload;/* inactivity reload value */
228 	int			ni_txrate;	/* legacy rate/MCS */
229 	struct ieee80211_psq	ni_psq;		/* power save queue */
230 	struct ieee80211_nodestats ni_stats;	/* per-node statistics */
231 
232 	struct ieee80211vap	*ni_wdsvap;	/* associated WDS vap */
233 	void			*ni_rctls;	/* private ratectl state */
234 	uint64_t		ni_spare[3];
235 };
236 #ifdef MALLOC_DECLARE
237 MALLOC_DECLARE(M_80211_NODE);
238 MALLOC_DECLARE(M_80211_NODE_IE);
239 #endif
240 
241 #define	IEEE80211_NODE_ATH	(IEEE80211_NODE_FF | IEEE80211_NODE_TURBOP)
242 #define	IEEE80211_NODE_AMPDU \
243 	(IEEE80211_NODE_AMPDU_RX | IEEE80211_NODE_AMPDU_TX)
244 #define	IEEE80211_NODE_AMSDU \
245 	(IEEE80211_NODE_AMSDU_RX | IEEE80211_NODE_AMSDU_TX)
246 #define	IEEE80211_NODE_HT_ALL \
247 	(IEEE80211_NODE_HT | IEEE80211_NODE_HTCOMPAT | \
248 	 IEEE80211_NODE_AMPDU | IEEE80211_NODE_AMSDU | \
249 	 IEEE80211_NODE_MIMO_PS | IEEE80211_NODE_MIMO_RTS | \
250 	 IEEE80211_NODE_RIFS | IEEE80211_NODE_SGI20 | IEEE80211_NODE_SGI40)
251 
252 #define	IEEE80211_NODE_BITS \
253 	"\20\1AUTH\2QOS\3ERP\5PWR_MGT\6AREF\7HT\10HTCOMPAT\11WPS\12TSN" \
254 	"\13AMPDU_RX\14AMPDU_TX\15MIMO_PS\16MIMO_RTS\17RIFS\20SGI20\21SGI40" \
255 	"\22ASSOCID"
256 
257 #define	IEEE80211_NODE_AID(ni)	IEEE80211_AID(ni->ni_associd)
258 
259 #define	IEEE80211_NODE_STAT(ni,stat)	(ni->ni_stats.ns_##stat++)
260 #define	IEEE80211_NODE_STAT_ADD(ni,stat,v)	(ni->ni_stats.ns_##stat += v)
261 #define	IEEE80211_NODE_STAT_SET(ni,stat,v)	(ni->ni_stats.ns_##stat = v)
262 
263 /*
264  * Filtered rssi calculation support.  The receive rssi is maintained
265  * as an average over the last 10 frames received using a low pass filter
266  * (all frames for now, possibly need to be more selective).  Calculations
267  * are designed such that a good compiler can optimize them.  The avg
268  * rssi state should be initialized to IEEE80211_RSSI_DUMMY_MARKER and
269  * each sample incorporated with IEEE80211_RSSI_LPF.  Use IEEE80211_RSSI_GET
270  * to extract the current value.
271  *
272  * Note that we assume rssi data are in the range [-127..127] and we
273  * discard values <-20.  This is consistent with assumptions throughout
274  * net80211 that signal strength data are in .5 dBm units relative to
275  * the current noise floor (linear, not log).
276  */
277 #define IEEE80211_RSSI_LPF_LEN		10
278 #define	IEEE80211_RSSI_DUMMY_MARKER	127
279 /* NB: pow2 to optimize out * and / */
280 #define	IEEE80211_RSSI_EP_MULTIPLIER	(1<<7)
281 #define IEEE80211_RSSI_IN(x)		((x) * IEEE80211_RSSI_EP_MULTIPLIER)
282 #define _IEEE80211_RSSI_LPF(x, y, len) \
283     (((x) != IEEE80211_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y))
284 #define IEEE80211_RSSI_LPF(x, y) do {					\
285     if ((y) >= -20) {							\
286     	x = _IEEE80211_RSSI_LPF((x), IEEE80211_RSSI_IN((y)), 		\
287 		IEEE80211_RSSI_LPF_LEN);				\
288     }									\
289 } while (0)
290 #define	IEEE80211_RSSI_EP_RND(x, mul) \
291 	((((x) % (mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
292 #define	IEEE80211_RSSI_GET(x) \
293 	IEEE80211_RSSI_EP_RND(x, IEEE80211_RSSI_EP_MULTIPLIER)
294 
295 static __inline struct ieee80211_node *
ieee80211_ref_node(struct ieee80211_node * ni)296 ieee80211_ref_node(struct ieee80211_node *ni)
297 {
298 	ieee80211_node_incref(ni);
299 	return ni;
300 }
301 
302 static __inline void
ieee80211_unref_node(struct ieee80211_node ** ni)303 ieee80211_unref_node(struct ieee80211_node **ni)
304 {
305 	ieee80211_node_decref(*ni);
306 	*ni = NULL;			/* guard against use */
307 }
308 
309 void	ieee80211_node_attach(struct ieee80211com *);
310 void	ieee80211_node_lateattach(struct ieee80211com *);
311 void	ieee80211_node_detach(struct ieee80211com *);
312 void	ieee80211_node_vattach(struct ieee80211vap *);
313 void	ieee80211_node_latevattach(struct ieee80211vap *);
314 void	ieee80211_node_vdetach(struct ieee80211vap *);
315 
316 static __inline int
ieee80211_node_is_authorized(const struct ieee80211_node * ni)317 ieee80211_node_is_authorized(const struct ieee80211_node *ni)
318 {
319 	return (ni->ni_flags & IEEE80211_NODE_AUTH);
320 }
321 
322 void	ieee80211_node_authorize(struct ieee80211_node *);
323 void	ieee80211_node_unauthorize(struct ieee80211_node *);
324 
325 void	ieee80211_node_setuptxparms(struct ieee80211_node *);
326 void	ieee80211_node_set_chan(struct ieee80211_node *,
327 		struct ieee80211_channel *);
328 void	ieee80211_create_ibss(struct ieee80211vap*, struct ieee80211_channel *);
329 void	ieee80211_reset_bss(struct ieee80211vap *);
330 void	ieee80211_sync_curchan(struct ieee80211com *);
331 void	ieee80211_setupcurchan(struct ieee80211com *,
332 	    struct ieee80211_channel *);
333 void	ieee80211_setcurchan(struct ieee80211com *, struct ieee80211_channel *);
334 void	ieee80211_update_chw(struct ieee80211com *);
335 int	ieee80211_ibss_merge_check(struct ieee80211_node *);
336 int	ieee80211_ibss_merge(struct ieee80211_node *);
337 struct ieee80211_scan_entry;
338 int	ieee80211_sta_join(struct ieee80211vap *, struct ieee80211_channel *,
339 		const struct ieee80211_scan_entry *);
340 void	ieee80211_sta_leave(struct ieee80211_node *);
341 void	ieee80211_node_deauth(struct ieee80211_node *, int);
342 
343 int	ieee80211_ies_init(struct ieee80211_ies *, const uint8_t *, int);
344 void	ieee80211_ies_cleanup(struct ieee80211_ies *);
345 void	ieee80211_ies_expand(struct ieee80211_ies *);
346 #define	ieee80211_ies_setie(_ies, _ie, _off) do {		\
347 	(_ies)._ie = (_ies).data + (_off);			\
348 } while (0)
349 
350 /*
351  * Table of ieee80211_node instances.  Each ieee80211com
352  * has one that holds association stations (when operating
353  * as an ap) or neighbors (in ibss mode).
354  *
355  * XXX embed this in ieee80211com instead of indirect?
356  */
357 struct ieee80211_node_table {
358 	struct ieee80211com	*nt_ic;		/* back reference */
359 	ieee80211_node_lock_t	nt_nodelock;	/* on node table */
360 	TAILQ_HEAD(, ieee80211_node) nt_node;	/* information of all nodes */
361 	LIST_HEAD(, ieee80211_node) nt_hash[IEEE80211_NODE_HASHSIZE];
362 	struct ieee80211_node	**nt_keyixmap;	/* key ix -> node map */
363 	int			nt_keyixmax;	/* keyixmap size */
364 	const char		*nt_name;	/* table name for debug msgs */
365 	ieee80211_scan_lock_t	nt_scanlock;	/* on nt_scangen */
366 	u_int			nt_scangen;	/* gen# for iterators */
367 	int			nt_inact_init;	/* initial node inact setting */
368 };
369 
370 struct ieee80211_node *ieee80211_alloc_node(struct ieee80211_node_table *,
371 		struct ieee80211vap *,
372 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
373 struct ieee80211_node *ieee80211_tmp_node(struct ieee80211vap *,
374 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
375 struct ieee80211_node *ieee80211_dup_bss(struct ieee80211vap *,
376 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
377 struct ieee80211_node *ieee80211_node_create_wds(struct ieee80211vap *,
378 		const uint8_t bssid[IEEE80211_ADDR_LEN],
379 		struct ieee80211_channel *);
380 #ifdef IEEE80211_DEBUG_REFCNT
381 void	ieee80211_free_node_debug(struct ieee80211_node *,
382 		const char *func, int line);
383 struct ieee80211_node *ieee80211_find_node_locked_debug(
384 		struct ieee80211_node_table *,
385 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
386 		const char *func, int line);
387 struct ieee80211_node *ieee80211_find_node_debug(struct ieee80211_node_table *,
388 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
389 		const char *func, int line);
390 struct ieee80211_node *ieee80211_find_vap_node_locked_debug(
391 		struct ieee80211_node_table *,
392 		const struct ieee80211vap *vap,
393 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
394 		const char *func, int line);
395 struct ieee80211_node *ieee80211_find_vap_node_debug(
396 		struct ieee80211_node_table *,
397 		const struct ieee80211vap *vap,
398 		const uint8_t macaddr[IEEE80211_ADDR_LEN],
399 		const char *func, int line);
400 struct ieee80211_node * ieee80211_find_rxnode_debug(struct ieee80211com *,
401 		const struct ieee80211_frame_min *,
402 		const char *func, int line);
403 struct ieee80211_node * ieee80211_find_rxnode_withkey_debug(
404 		struct ieee80211com *,
405 		const struct ieee80211_frame_min *, uint16_t keyix,
406 		const char *func, int line);
407 struct ieee80211_node *ieee80211_find_txnode_debug(struct ieee80211vap *,
408 		const uint8_t *,
409 		const char *func, int line);
410 #define	ieee80211_free_node(ni) \
411 	ieee80211_free_node_debug(ni, __func__, __LINE__)
412 #define	ieee80211_find_node_locked(nt, mac) \
413 	ieee80211_find_node_locked_debug(nt, mac, __func__, __LINE__)
414 #define	ieee80211_find_node(nt, mac) \
415 	ieee80211_find_node_debug(nt, mac, __func__, __LINE__)
416 #define	ieee80211_find_vap_node_locked(nt, vap, mac) \
417 	ieee80211_find_vap_node_locked_debug(nt, vap, mac, __func__, __LINE__)
418 #define	ieee80211_find_vap_node(nt, vap, mac) \
419 	ieee80211_find_vap_node_debug(nt, vap, mac, __func__, __LINE__)
420 #define	ieee80211_find_rxnode(ic, wh) \
421 	ieee80211_find_rxnode_debug(ic, wh, __func__, __LINE__)
422 #define	ieee80211_find_rxnode_withkey(ic, wh, keyix) \
423 	ieee80211_find_rxnode_withkey_debug(ic, wh, keyix, __func__, __LINE__)
424 #define	ieee80211_find_txnode(vap, mac) \
425 	ieee80211_find_txnode_debug(vap, mac, __func__, __LINE__)
426 #else
427 void	ieee80211_free_node(struct ieee80211_node *);
428 struct ieee80211_node *ieee80211_find_node_locked(struct ieee80211_node_table *,
429 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
430 struct ieee80211_node *ieee80211_find_node(struct ieee80211_node_table *,
431 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
432 struct ieee80211_node *ieee80211_find_vap_node_locked(
433 		struct ieee80211_node_table *, const struct ieee80211vap *,
434 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
435 struct ieee80211_node *ieee80211_find_vap_node(
436 		struct ieee80211_node_table *, const struct ieee80211vap *,
437 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
438 struct ieee80211_node * ieee80211_find_rxnode(struct ieee80211com *,
439 		const struct ieee80211_frame_min *);
440 struct ieee80211_node * ieee80211_find_rxnode_withkey(struct ieee80211com *,
441 		const struct ieee80211_frame_min *, uint16_t keyix);
442 struct ieee80211_node *ieee80211_find_txnode(struct ieee80211vap *,
443 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
444 #endif
445 int	ieee80211_node_delucastkey(struct ieee80211_node *);
446 void	ieee80211_node_timeout(void *arg);
447 
448 typedef void ieee80211_iter_func(void *, struct ieee80211_node *);
449 int	ieee80211_iterate_nt(struct ieee80211_node_table *,
450 		struct ieee80211_node **, uint16_t);
451 void	ieee80211_iterate_nodes(struct ieee80211_node_table *,
452 		ieee80211_iter_func *, void *);
453 
454 void	ieee80211_notify_erp(struct ieee80211com *);
455 void	ieee80211_dump_node(struct ieee80211_node_table *,
456 		struct ieee80211_node *);
457 void	ieee80211_dump_nodes(struct ieee80211_node_table *);
458 
459 struct ieee80211_node *ieee80211_fakeup_adhoc_node(struct ieee80211vap *,
460 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
461 struct ieee80211_scanparams;
462 void	ieee80211_init_neighbor(struct ieee80211_node *,
463 		const struct ieee80211_frame *,
464 		const struct ieee80211_scanparams *);
465 struct ieee80211_node *ieee80211_add_neighbor(struct ieee80211vap *,
466 		const struct ieee80211_frame *,
467 		const struct ieee80211_scanparams *);
468 void	ieee80211_node_join(struct ieee80211_node *,int);
469 void	ieee80211_node_leave(struct ieee80211_node *);
470 int8_t	ieee80211_getrssi(struct ieee80211vap *);
471 void	ieee80211_getsignal(struct ieee80211vap *, int8_t *, int8_t *);
472 #endif /* _NET80211_IEEE80211_NODE_H_ */
473