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/*-
* Copyright (c) 2001 Atsushi Onoe
* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: release/9.1.0/sys/net80211/ieee80211_node.h 220445 2011-04-08 09:20:45Z adrian $
*/
#ifndef _NET80211_IEEE80211_NODE_H_
#define _NET80211_IEEE80211_NODE_H_
#include <net80211/ieee80211_ioctl.h> /* for ieee80211_nodestats */
#include <net80211/ieee80211_ht.h> /* for aggregation state */
/*
* Each ieee80211com instance has a single timer that fires every
* IEEE80211_INACT_WAIT seconds to handle "inactivity processing".
* This is used to do node inactivity processing when operating
* as an AP, adhoc or mesh mode. For inactivity processing each node
* has a timeout set in it's ni_inact field that is decremented
* on each timeout and the node is reclaimed when the counter goes
* to zero. We use different inactivity timeout values depending
* on whether the node is associated and authorized (either by
* 802.1x or open/shared key authentication) or associated but yet
* to be authorized. The latter timeout is shorter to more aggressively
* reclaim nodes that leave part way through the 802.1x exchange.
*/
#define IEEE80211_INACT_WAIT 15 /* inactivity interval (secs) */
#define IEEE80211_INACT_INIT (30/IEEE80211_INACT_WAIT) /* initial */
#define IEEE80211_INACT_AUTH (180/IEEE80211_INACT_WAIT) /* associated but not authorized */
#define IEEE80211_INACT_RUN (300/IEEE80211_INACT_WAIT) /* authorized */
#define IEEE80211_INACT_PROBE (30/IEEE80211_INACT_WAIT) /* probe */
#define IEEE80211_INACT_SCAN (300/IEEE80211_INACT_WAIT) /* scanned */
#define IEEE80211_TRANS_WAIT 2 /* mgt frame tx timer (secs) */
/* threshold for aging overlapping non-ERP bss */
#define IEEE80211_NONERP_PRESENT_AGE msecs_to_ticks(60*1000)
#define IEEE80211_NODE_HASHSIZE 32 /* NB: hash size must be pow2 */
/* simple hash is enough for variation of macaddr */
#define IEEE80211_NODE_HASH(ic, addr) \
(((const uint8_t *)(addr))[IEEE80211_ADDR_LEN - 1] % \
IEEE80211_NODE_HASHSIZE)
struct ieee80211_node_table;
struct ieee80211com;
struct ieee80211vap;
/*
* Information element ``blob''. We use this structure
* to capture management frame payloads that need to be
* retained. Information elements within the payload that
* we need to consult have references recorded.
*/
struct ieee80211_ies {
/* the following are either NULL or point within data */
uint8_t *wpa_ie; /* captured WPA ie */
uint8_t *rsn_ie; /* captured RSN ie */
uint8_t *wme_ie; /* captured WME ie */
uint8_t *ath_ie; /* captured Atheros ie */
uint8_t *htcap_ie; /* captured HTCAP ie */
uint8_t *htinfo_ie; /* captured HTINFO ie */
uint8_t *tdma_ie; /* captured TDMA ie */
uint8_t *meshid_ie; /* captured MESH ID ie */
uint8_t *spare[4];
/* NB: these must be the last members of this structure */
uint8_t *data; /* frame data > 802.11 header */
int len; /* data size in bytes */
};
/*
* 802.11s (Mesh) Peer Link FSM state.
*/
enum ieee80211_mesh_mlstate {
IEEE80211_NODE_MESH_IDLE = 0,
IEEE80211_NODE_MESH_OPENSNT = 1, /* open frame sent */
IEEE80211_NODE_MESH_OPENRCV = 2, /* open frame received */
IEEE80211_NODE_MESH_CONFIRMRCV = 3, /* confirm frame received */
IEEE80211_NODE_MESH_ESTABLISHED = 4, /* link established */
IEEE80211_NODE_MESH_HOLDING = 5, /* link closing */
};
#define IEEE80211_MESH_MLSTATE_BITS \
"\20\1IDLE\2OPENSNT\2OPENRCV\3CONFIRMRCV\4ESTABLISHED\5HOLDING"
/*
* Node specific information. Note that drivers are expected
* to derive from this structure to add device-specific per-node
* state. This is done by overriding the ic_node_* methods in
* the ieee80211com structure.
*/
struct ieee80211_node {
struct ieee80211vap *ni_vap; /* associated vap */
struct ieee80211com *ni_ic; /* copy from vap to save deref*/
struct ieee80211_node_table *ni_table; /* NB: may be NULL */
TAILQ_ENTRY(ieee80211_node) ni_list; /* list of all nodes */
LIST_ENTRY(ieee80211_node) ni_hash; /* hash collision list */
u_int ni_refcnt; /* count of held references */
u_int ni_scangen; /* gen# for timeout scan */
u_int ni_flags;
#define IEEE80211_NODE_AUTH 0x000001 /* authorized for data */
#define IEEE80211_NODE_QOS 0x000002 /* QoS enabled */
#define IEEE80211_NODE_ERP 0x000004 /* ERP enabled */
/* NB: this must have the same value as IEEE80211_FC1_PWR_MGT */
#define IEEE80211_NODE_PWR_MGT 0x000010 /* power save mode enabled */
#define IEEE80211_NODE_AREF 0x000020 /* authentication ref held */
#define IEEE80211_NODE_HT 0x000040 /* HT enabled */
#define IEEE80211_NODE_HTCOMPAT 0x000080 /* HT setup w/ vendor OUI's */
#define IEEE80211_NODE_WPS 0x000100 /* WPS association */
#define IEEE80211_NODE_TSN 0x000200 /* TSN association */
#define IEEE80211_NODE_AMPDU_RX 0x000400 /* AMPDU rx enabled */
#define IEEE80211_NODE_AMPDU_TX 0x000800 /* AMPDU tx enabled */
#define IEEE80211_NODE_MIMO_PS 0x001000 /* MIMO power save enabled */
#define IEEE80211_NODE_MIMO_RTS 0x002000 /* send RTS in MIMO PS */
#define IEEE80211_NODE_RIFS 0x004000 /* RIFS enabled */
#define IEEE80211_NODE_SGI20 0x008000 /* Short GI in HT20 enabled */
#define IEEE80211_NODE_SGI40 0x010000 /* Short GI in HT40 enabled */
#define IEEE80211_NODE_ASSOCID 0x020000 /* xmit requires associd */
#define IEEE80211_NODE_AMSDU_RX 0x040000 /* AMSDU rx enabled */
#define IEEE80211_NODE_AMSDU_TX 0x080000 /* AMSDU tx enabled */
uint16_t ni_associd; /* association ID */
uint16_t ni_vlan; /* vlan tag */
uint16_t ni_txpower; /* current transmit power */
uint8_t ni_authmode; /* authentication algorithm */
uint8_t ni_ath_flags; /* Atheros feature flags */
/* NB: These must have the same values as IEEE80211_ATHC_* */
#define IEEE80211_NODE_TURBOP 0x0001 /* Turbo prime enable */
#define IEEE80211_NODE_COMP 0x0002 /* Compresssion enable */
#define IEEE80211_NODE_FF 0x0004 /* Fast Frame capable */
#define IEEE80211_NODE_XR 0x0008 /* Atheros WME enable */
#define IEEE80211_NODE_AR 0x0010 /* AR capable */
#define IEEE80211_NODE_BOOST 0x0080 /* Dynamic Turbo boosted */
uint16_t ni_ath_defkeyix;/* Atheros def key index */
const struct ieee80211_txparam *ni_txparms;
uint32_t ni_jointime; /* time of join (secs) */
uint32_t *ni_challenge; /* shared-key challenge */
struct ieee80211_ies ni_ies; /* captured ie's */
/* tx seq per-tid */
ieee80211_seq ni_txseqs[IEEE80211_TID_SIZE];
/* rx seq previous per-tid*/
ieee80211_seq ni_rxseqs[IEEE80211_TID_SIZE];
uint32_t ni_rxfragstamp; /* time stamp of last rx frag */
struct mbuf *ni_rxfrag[3]; /* rx frag reassembly */
struct ieee80211_key ni_ucastkey; /* unicast key */
/* hardware */
uint32_t ni_avgrssi; /* recv ssi state */
int8_t ni_noise; /* noise floor */
/* mimo statistics */
uint32_t ni_mimo_rssi_ctl[IEEE80211_MAX_CHAINS];
uint32_t ni_mimo_rssi_ext[IEEE80211_MAX_CHAINS];
uint8_t ni_mimo_noise_ctl[IEEE80211_MAX_CHAINS];
uint8_t ni_mimo_noise_ext[IEEE80211_MAX_CHAINS];
uint8_t ni_mimo_chains;
/* header */
uint8_t ni_macaddr[IEEE80211_ADDR_LEN];
uint8_t ni_bssid[IEEE80211_ADDR_LEN];
/* beacon, probe response */
union {
uint8_t data[8];
u_int64_t tsf;
} ni_tstamp; /* from last rcv'd beacon */
uint16_t ni_intval; /* beacon interval */
uint16_t ni_capinfo; /* capabilities */
uint8_t ni_esslen;
uint8_t ni_essid[IEEE80211_NWID_LEN];
struct ieee80211_rateset ni_rates; /* negotiated rate set */
struct ieee80211_channel *ni_chan;
uint16_t ni_fhdwell; /* FH only */
uint8_t ni_fhindex; /* FH only */
uint16_t ni_erp; /* ERP from beacon/probe resp */
uint16_t ni_timoff; /* byte offset to TIM ie */
uint8_t ni_dtim_period; /* DTIM period */
uint8_t ni_dtim_count; /* DTIM count for last bcn */
/* 11s state */
uint8_t ni_meshidlen;
uint8_t ni_meshid[IEEE80211_MESHID_LEN];
enum ieee80211_mesh_mlstate ni_mlstate; /* peering management state */
uint16_t ni_mllid; /* link local ID */
uint16_t ni_mlpid; /* link peer ID */
struct callout ni_mltimer; /* link mesh timer */
uint8_t ni_mlrcnt; /* link mesh retry counter */
uint8_t ni_mltval; /* link mesh timer value */
/* 11n state */
uint16_t ni_htcap; /* HT capabilities */
uint8_t ni_htparam; /* HT params */
uint8_t ni_htctlchan; /* HT control channel */
uint8_t ni_ht2ndchan; /* HT 2nd channel */
uint8_t ni_htopmode; /* HT operating mode */
uint8_t ni_htstbc; /* HT */
uint8_t ni_chw; /* negotiated channel width */
struct ieee80211_htrateset ni_htrates; /* negotiated ht rate set */
struct ieee80211_tx_ampdu ni_tx_ampdu[WME_NUM_AC];
struct ieee80211_rx_ampdu ni_rx_ampdu[WME_NUM_TID];
/* others */
short ni_inact; /* inactivity mark count */
short ni_inact_reload;/* inactivity reload value */
int ni_txrate; /* legacy rate/MCS */
struct ieee80211_psq ni_psq; /* power save queue */
struct ieee80211_nodestats ni_stats; /* per-node statistics */
struct ieee80211vap *ni_wdsvap; /* associated WDS vap */
void *ni_rctls; /* private ratectl state */
uint64_t ni_spare[3];
};
MALLOC_DECLARE(M_80211_NODE);
MALLOC_DECLARE(M_80211_NODE_IE);
#define IEEE80211_NODE_ATH (IEEE80211_NODE_FF | IEEE80211_NODE_TURBOP)
#define IEEE80211_NODE_AMPDU \
(IEEE80211_NODE_AMPDU_RX | IEEE80211_NODE_AMPDU_TX)
#define IEEE80211_NODE_AMSDU \
(IEEE80211_NODE_AMSDU_RX | IEEE80211_NODE_AMSDU_TX)
#define IEEE80211_NODE_HT_ALL \
(IEEE80211_NODE_HT | IEEE80211_NODE_HTCOMPAT | \
IEEE80211_NODE_AMPDU | IEEE80211_NODE_AMSDU | \
IEEE80211_NODE_MIMO_PS | IEEE80211_NODE_MIMO_RTS | \
IEEE80211_NODE_RIFS | IEEE80211_NODE_SGI20 | IEEE80211_NODE_SGI40)
#define IEEE80211_NODE_BITS \
"\20\1AUTH\2QOS\3ERP\5PWR_MGT\6AREF\7HT\10HTCOMPAT\11WPS\12TSN" \
"\13AMPDU_RX\14AMPDU_TX\15MIMO_PS\16MIMO_RTS\17RIFS\20SGI20\21SGI40" \
"\22ASSOCID"
#define IEEE80211_NODE_AID(ni) IEEE80211_AID(ni->ni_associd)
#define IEEE80211_NODE_STAT(ni,stat) (ni->ni_stats.ns_##stat++)
#define IEEE80211_NODE_STAT_ADD(ni,stat,v) (ni->ni_stats.ns_##stat += v)
#define IEEE80211_NODE_STAT_SET(ni,stat,v) (ni->ni_stats.ns_##stat = v)
/*
* Filtered rssi calculation support. The receive rssi is maintained
* as an average over the last 10 frames received using a low pass filter
* (all frames for now, possibly need to be more selective). Calculations
* are designed such that a good compiler can optimize them. The avg
* rssi state should be initialized to IEEE80211_RSSI_DUMMY_MARKER and
* each sample incorporated with IEEE80211_RSSI_LPF. Use IEEE80211_RSSI_GET
* to extract the current value.
*
* Note that we assume rssi data are in the range [-127..127] and we
* discard values <-20. This is consistent with assumptions throughout
* net80211 that signal strength data are in .5 dBm units relative to
* the current noise floor (linear, not log).
*/
#define IEEE80211_RSSI_LPF_LEN 10
#define IEEE80211_RSSI_DUMMY_MARKER 127
/* NB: pow2 to optimize out * and / */
#define IEEE80211_RSSI_EP_MULTIPLIER (1<<7)
#define IEEE80211_RSSI_IN(x) ((x) * IEEE80211_RSSI_EP_MULTIPLIER)
#define _IEEE80211_RSSI_LPF(x, y, len) \
(((x) != IEEE80211_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y))
#define IEEE80211_RSSI_LPF(x, y) do { \
if ((y) >= -20) { \
x = _IEEE80211_RSSI_LPF((x), IEEE80211_RSSI_IN((y)), \
IEEE80211_RSSI_LPF_LEN); \
} \
} while (0)
#define IEEE80211_RSSI_EP_RND(x, mul) \
((((x) % (mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
#define IEEE80211_RSSI_GET(x) \
IEEE80211_RSSI_EP_RND(x, IEEE80211_RSSI_EP_MULTIPLIER)
static __inline struct ieee80211_node *
ieee80211_ref_node(struct ieee80211_node *ni)
{
ieee80211_node_incref(ni);
return ni;
}
static __inline void
ieee80211_unref_node(struct ieee80211_node **ni)
{
ieee80211_node_decref(*ni);
*ni = NULL; /* guard against use */
}
struct ieee80211com;
void ieee80211_node_attach(struct ieee80211com *);
void ieee80211_node_lateattach(struct ieee80211com *);
void ieee80211_node_detach(struct ieee80211com *);
void ieee80211_node_vattach(struct ieee80211vap *);
void ieee80211_node_latevattach(struct ieee80211vap *);
void ieee80211_node_vdetach(struct ieee80211vap *);
static __inline int
ieee80211_node_is_authorized(const struct ieee80211_node *ni)
{
return (ni->ni_flags & IEEE80211_NODE_AUTH);
}
void ieee80211_node_authorize(struct ieee80211_node *);
void ieee80211_node_unauthorize(struct ieee80211_node *);
void ieee80211_node_setuptxparms(struct ieee80211_node *);
void ieee80211_node_set_chan(struct ieee80211_node *,
struct ieee80211_channel *);
void ieee80211_create_ibss(struct ieee80211vap*, struct ieee80211_channel *);
void ieee80211_reset_bss(struct ieee80211vap *);
void ieee80211_sync_curchan(struct ieee80211com *);
void ieee80211_setupcurchan(struct ieee80211com *,
struct ieee80211_channel *);
void ieee80211_setcurchan(struct ieee80211com *, struct ieee80211_channel *);
int ieee80211_ibss_merge(struct ieee80211_node *);
struct ieee80211_scan_entry;
int ieee80211_sta_join(struct ieee80211vap *, struct ieee80211_channel *,
const struct ieee80211_scan_entry *);
void ieee80211_sta_leave(struct ieee80211_node *);
void ieee80211_node_deauth(struct ieee80211_node *, int);
int ieee80211_ies_init(struct ieee80211_ies *, const uint8_t *, int);
void ieee80211_ies_cleanup(struct ieee80211_ies *);
void ieee80211_ies_expand(struct ieee80211_ies *);
#define ieee80211_ies_setie(_ies, _ie, _off) do { \
(_ies)._ie = (_ies).data + (_off); \
} while (0)
/*
* Table of ieee80211_node instances. Each ieee80211com
* has one that holds association stations (when operating
* as an ap) or neighbors (in ibss mode).
*
* XXX embed this in ieee80211com instead of indirect?
*/
struct ieee80211_node_table {
struct ieee80211com *nt_ic; /* back reference */
ieee80211_node_lock_t nt_nodelock; /* on node table */
TAILQ_HEAD(, ieee80211_node) nt_node; /* information of all nodes */
LIST_HEAD(, ieee80211_node) nt_hash[IEEE80211_NODE_HASHSIZE];
struct ieee80211_node **nt_keyixmap; /* key ix -> node map */
int nt_keyixmax; /* keyixmap size */
const char *nt_name; /* table name for debug msgs */
ieee80211_scan_lock_t nt_scanlock; /* on nt_scangen */
u_int nt_scangen; /* gen# for iterators */
int nt_inact_init; /* initial node inact setting */
};
struct ieee80211_node *ieee80211_alloc_node(struct ieee80211_node_table *,
struct ieee80211vap *,
const uint8_t macaddr[IEEE80211_ADDR_LEN]);
struct ieee80211_node *ieee80211_tmp_node(struct ieee80211vap *,
const uint8_t macaddr[IEEE80211_ADDR_LEN]);
struct ieee80211_node *ieee80211_dup_bss(struct ieee80211vap *,
const uint8_t macaddr[IEEE80211_ADDR_LEN]);
struct ieee80211_node *ieee80211_node_create_wds(struct ieee80211vap *,
const uint8_t bssid[IEEE80211_ADDR_LEN],
struct ieee80211_channel *);
#ifdef IEEE80211_DEBUG_REFCNT
void ieee80211_free_node_debug(struct ieee80211_node *,
const char *func, int line);
struct ieee80211_node *ieee80211_find_node_locked_debug(
struct ieee80211_node_table *,
const uint8_t macaddr[IEEE80211_ADDR_LEN],
const char *func, int line);
struct ieee80211_node *ieee80211_find_node_debug(struct ieee80211_node_table *,
const uint8_t macaddr[IEEE80211_ADDR_LEN],
const char *func, int line);
struct ieee80211_node *ieee80211_find_vap_node_locked_debug(
struct ieee80211_node_table *,
const struct ieee80211vap *vap,
const uint8_t macaddr[IEEE80211_ADDR_LEN],
const char *func, int line);
struct ieee80211_node *ieee80211_find_vap_node_debug(
struct ieee80211_node_table *,
const struct ieee80211vap *vap,
const uint8_t macaddr[IEEE80211_ADDR_LEN],
const char *func, int line);
struct ieee80211_node * ieee80211_find_rxnode_debug(struct ieee80211com *,
const struct ieee80211_frame_min *,
const char *func, int line);
struct ieee80211_node * ieee80211_find_rxnode_withkey_debug(
struct ieee80211com *,
const struct ieee80211_frame_min *, uint16_t keyix,
const char *func, int line);
struct ieee80211_node *ieee80211_find_txnode_debug(struct ieee80211vap *,
const uint8_t *,
const char *func, int line);
#define ieee80211_free_node(ni) \
ieee80211_free_node_debug(ni, __func__, __LINE__)
#define ieee80211_find_node_locked(nt, mac) \
ieee80211_find_node_locked_debug(nt, mac, __func__, __LINE__)
#define ieee80211_find_node(nt, mac) \
ieee80211_find_node_debug(nt, mac, __func__, __LINE__)
#define ieee80211_find_vap_node_locked(nt, vap, mac) \
ieee80211_find_vap_node_locked_debug(nt, vap, mac, __func__, __LINE__)
#define ieee80211_find_vap_node(nt, vap, mac) \
ieee80211_find_vap_node_debug(nt, vap, mac, __func__, __LINE__)
#define ieee80211_find_rxnode(ic, wh) \
ieee80211_find_rxnode_debug(ic, wh, __func__, __LINE__)
#define ieee80211_find_rxnode_withkey(ic, wh, keyix) \
ieee80211_find_rxnode_withkey_debug(ic, wh, keyix, __func__, __LINE__)
#define ieee80211_find_txnode(vap, mac) \
ieee80211_find_txnode_debug(vap, mac, __func__, __LINE__)
#else
void ieee80211_free_node(struct ieee80211_node *);
struct ieee80211_node *ieee80211_find_node_locked(struct ieee80211_node_table *,
const uint8_t macaddr[IEEE80211_ADDR_LEN]);
struct ieee80211_node *ieee80211_find_node(struct ieee80211_node_table *,
const uint8_t macaddr[IEEE80211_ADDR_LEN]);
struct ieee80211_node *ieee80211_find_vap_node_locked(
struct ieee80211_node_table *, const struct ieee80211vap *,
const uint8_t macaddr[IEEE80211_ADDR_LEN]);
struct ieee80211_node *ieee80211_find_vap_node(
struct ieee80211_node_table *, const struct ieee80211vap *,
const uint8_t macaddr[IEEE80211_ADDR_LEN]);
struct ieee80211_node * ieee80211_find_rxnode(struct ieee80211com *,
const struct ieee80211_frame_min *);
struct ieee80211_node * ieee80211_find_rxnode_withkey(struct ieee80211com *,
const struct ieee80211_frame_min *, uint16_t keyix);
struct ieee80211_node *ieee80211_find_txnode(struct ieee80211vap *,
const uint8_t macaddr[IEEE80211_ADDR_LEN]);
#endif
int ieee80211_node_delucastkey(struct ieee80211_node *);
void ieee80211_node_timeout(void *arg);
typedef void ieee80211_iter_func(void *, struct ieee80211_node *);
void ieee80211_iterate_nodes(struct ieee80211_node_table *,
ieee80211_iter_func *, void *);
void ieee80211_notify_erp(struct ieee80211com *);
void ieee80211_dump_node(struct ieee80211_node_table *,
struct ieee80211_node *);
void ieee80211_dump_nodes(struct ieee80211_node_table *);
struct ieee80211_node *ieee80211_fakeup_adhoc_node(struct ieee80211vap *,
const uint8_t macaddr[IEEE80211_ADDR_LEN]);
struct ieee80211_scanparams;
void ieee80211_init_neighbor(struct ieee80211_node *,
const struct ieee80211_frame *,
const struct ieee80211_scanparams *);
struct ieee80211_node *ieee80211_add_neighbor(struct ieee80211vap *,
const struct ieee80211_frame *,
const struct ieee80211_scanparams *);
void ieee80211_node_join(struct ieee80211_node *,int);
void ieee80211_node_leave(struct ieee80211_node *);
int8_t ieee80211_getrssi(struct ieee80211vap *);
void ieee80211_getsignal(struct ieee80211vap *, int8_t *, int8_t *);
#endif /* _NET80211_IEEE80211_NODE_H_ */