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ieee80211_var.h revision 1.33.2.2
      1 /*	$NetBSD: ieee80211_var.h,v 1.33.2.2 2018/06/28 21:23:01 phil Exp $ */
      2 
      3 /*-
      4  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      5  *
      6  * Copyright (c) 2001 Atsushi Onoe
      7  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
      8  * All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  *
     30  * $FreeBSD$
     31  */
     32 #ifndef _NET80211_IEEE80211_VAR_H_
     33 #define _NET80211_IEEE80211_VAR_H_
     34 
     35 /*
     36  * Definitions for IEEE 802.11 drivers.
     37  */
     38 /* NB: portability glue must go first */
     39 #if defined(__NetBSD__)
     40 #include <net80211/ieee80211_netbsd.h>
     41 #elif defined(__FreeBSD__)
     42 #include <net80211/ieee80211_freebsd.h>
     43 #elif defined(__linux__)
     44 #include <net80211/ieee80211_linux.h>
     45 #else
     46 #error	"No support for your operating system!"
     47 #endif
     48 
     49 #include <net80211/_ieee80211.h>
     50 #include <net80211/ieee80211.h>
     51 #include <net80211/ieee80211_ageq.h>
     52 #include <net80211/ieee80211_crypto.h>
     53 #include <net80211/ieee80211_dfs.h>
     54 #include <net80211/ieee80211_ioctl.h>		/* for ieee80211_stats */
     55 #include <net80211/ieee80211_phy.h>
     56 #include <net80211/ieee80211_power.h>
     57 #include <net80211/ieee80211_node.h>
     58 #include <net80211/ieee80211_proto.h>
     59 #include <net80211/ieee80211_radiotap.h>
     60 #include <net80211/ieee80211_scan.h>
     61 
     62 #define	IEEE80211_TXPOWER_MAX	100	/* .5 dBm (XXX units?) */
     63 #define	IEEE80211_TXPOWER_MIN	0	/* kill radio */
     64 
     65 #define	IEEE80211_DTIM_DEFAULT	1	/* default DTIM period */
     66 #define	IEEE80211_BINTVAL_DEFAULT 100	/* default beacon interval (TU's) */
     67 
     68 #define	IEEE80211_BMISS_MAX	2	/* maximum consecutive bmiss allowed */
     69 #define	IEEE80211_HWBMISS_DEFAULT 7	/* h/w bmiss threshold (beacons) */
     70 
     71 #define	IEEE80211_BGSCAN_INTVAL_MIN	15	/* min bg scan intvl (secs) */
     72 #define	IEEE80211_BGSCAN_INTVAL_DEFAULT	(5*60)	/* default bg scan intvl */
     73 
     74 #define	IEEE80211_BGSCAN_IDLE_MIN	100	/* min idle time (ms) */
     75 #define	IEEE80211_BGSCAN_IDLE_DEFAULT	250	/* default idle time (ms) */
     76 
     77 #define	IEEE80211_SCAN_VALID_MIN	10	/* min scan valid time (secs) */
     78 #define	IEEE80211_SCAN_VALID_DEFAULT	60	/* default scan valid time */
     79 
     80 #define	IEEE80211_PS_SLEEP	0x1	/* STA is in power saving mode */
     81 #define	IEEE80211_PS_MAX_QUEUE	50	/* maximum saved packets */
     82 
     83 #define	IEEE80211_FIXED_RATE_NONE	0xff
     84 #define	IEEE80211_TXMAX_DEFAULT		6	/* default ucast max retries */
     85 
     86 #define	IEEE80211_RTS_DEFAULT		IEEE80211_RTS_MAX
     87 #define	IEEE80211_FRAG_DEFAULT		IEEE80211_FRAG_MAX
     88 
     89 #define	IEEE80211_MS_TO_TU(x)	(((x) * 1000) / 1024)
     90 #define	IEEE80211_TU_TO_MS(x)	(((x) * 1024) / 1000)
     91 /* XXX TODO: cap this at 1, in case hz is not 1000 */
     92 #define	IEEE80211_TU_TO_TICKS(x)(((uint64_t)(x) * 1024 * hz) / (1000 * 1000))
     93 
     94 /*
     95  * Technically, vhtflags may be 0 /and/ 11ac is enabled.
     96  * At some point ic should just grow a flag somewhere that
     97  * says that VHT is supported - and then this macro can be
     98  * changed.
     99  */
    100 #define	IEEE80211_CONF_VHT(ic)			\
    101 	    ((ic)->ic_flags_ext & IEEE80211_FEXT_VHT)
    102 
    103 #define	IEEE80211_CONF_SEQNO_OFFLOAD(ic)	\
    104 	    ((ic)->ic_flags_ext & IEEE80211_FEXT_SEQNO_OFFLOAD)
    105 #define	IEEE80211_CONF_FRAG_OFFLOAD(ic)	\
    106 	    ((ic)->ic_flags_ext & IEEE80211_FEXT_FRAG_OFFLOAD)
    107 
    108 /*
    109  * 802.11 control state is split into a common portion that maps
    110  * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
    111  * that are bound to an ieee80211com instance and share a single
    112  * underlying device.  Each VAP has a corresponding OS device
    113  * entity through which traffic flows and that applications use
    114  * for issuing ioctls, etc.
    115  */
    116 
    117 /*
    118  * Data common to one or more virtual AP's.  State shared by
    119  * the underlying device and the net80211 layer is exposed here;
    120  * e.g. device-specific callbacks.
    121  */
    122 struct ieee80211vap;
    123 typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
    124 
    125 struct ieee80211_appie {
    126 	uint16_t		ie_len;		/* size of ie_data */
    127 	uint8_t			ie_data[];	/* user-specified IE's */
    128 };
    129 
    130 struct ieee80211_tdma_param;
    131 struct ieee80211_rate_table;
    132 struct ieee80211_tx_ampdu;
    133 struct ieee80211_rx_ampdu;
    134 struct ieee80211_superg;
    135 struct ieee80211_frame;
    136 
    137 struct ieee80211com {
    138 	void			*ic_softc;	/* driver softc */
    139 	const char		*ic_name;	/* usually device name */
    140 	ieee80211_com_lock_t	ic_comlock;	/* state update lock */
    141 	ieee80211_tx_lock_t	ic_txlock;	/* ic/vap TX lock */
    142 	ieee80211_ff_lock_t	ic_fflock;	/* stageq/ni_tx_superg lock */
    143 	LIST_ENTRY(ieee80211com)   ic_next;	/* on global list */
    144 	TAILQ_HEAD(, ieee80211vap) ic_vaps;	/* list of vap instances */
    145 	int			ic_headroom;	/* driver tx headroom needs */
    146 	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
    147 	enum ieee80211_opmode	ic_opmode;	/* operation mode */
    148 	struct callout		ic_inact;	/* inactivity processing */
    149 	struct taskqueue	*ic_tq;		/* deferred state thread */
    150 	struct task		ic_parent_task;	/* deferred parent processing */
    151 	struct task		ic_promisc_task;/* deferred promisc update */
    152 	struct task		ic_mcast_task;	/* deferred mcast update */
    153 	struct task		ic_chan_task;	/* deferred channel change */
    154 	struct task		ic_bmiss_task;	/* deferred beacon miss hndlr */
    155 	struct task		ic_chw_task;	/* deferred HT CHW update */
    156 	struct task		ic_restart_task; /* deferred device restart */
    157 
    158 	counter_u64_t		ic_ierrors;	/* input errors */
    159 	counter_u64_t		ic_oerrors;	/* output errors */
    160 
    161 	uint32_t		ic_flags;	/* state flags */
    162 	uint32_t		ic_flags_ext;	/* extended state flags */
    163 	uint32_t		ic_flags_ht;	/* HT state flags */
    164 	uint32_t		ic_flags_ven;	/* vendor state flags */
    165 	uint32_t		ic_caps;	/* capabilities */
    166 	uint32_t		ic_htcaps;	/* HT capabilities */
    167 	uint32_t		ic_htextcaps;	/* HT extended capabilities */
    168 	uint32_t		ic_cryptocaps;	/* crypto capabilities */
    169 						/* set of mode capabilities */
    170 	uint8_t			ic_modecaps[IEEE80211_MODE_BYTES];
    171 	uint8_t			ic_promisc;	/* vap's needing promisc mode */
    172 	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
    173 	uint8_t			ic_nrunning;	/* vap's marked running */
    174 	uint8_t			ic_curmode;	/* current mode */
    175 	uint8_t			ic_macaddr[IEEE80211_ADDR_LEN];
    176 	uint16_t		ic_bintval;	/* beacon interval */
    177 	uint16_t		ic_lintval;	/* listen interval */
    178 	uint16_t		ic_holdover;	/* PM hold over duration */
    179 	uint16_t		ic_txpowlimit;	/* global tx power limit */
    180 	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
    181 	struct ieee80211_htrateset ic_sup_htrates;
    182 
    183 	/*
    184 	 * Channel state:
    185 	 *
    186 	 * ic_channels is the set of available channels for the device;
    187 	 *    it is setup by the driver
    188 	 * ic_nchans is the number of valid entries in ic_channels
    189 	 * ic_chan_avail is a bit vector of these channels used to check
    190 	 *    whether a channel is available w/o searching the channel table.
    191 	 * ic_chan_active is a (potentially) constrained subset of
    192 	 *    ic_chan_avail that reflects any mode setting or user-specified
    193 	 *    limit on the set of channels to use/scan
    194 	 * ic_curchan is the current channel the device is set to; it may
    195 	 *    be different from ic_bsschan when we are off-channel scanning
    196 	 *    or otherwise doing background work
    197 	 * ic_bsschan is the channel selected for operation; it may
    198 	 *    be undefined (IEEE80211_CHAN_ANYC)
    199 	 * ic_prevchan is a cached ``previous channel'' used to optimize
    200 	 *    lookups when switching back+forth between two channels
    201 	 *    (e.g. for dynamic turbo)
    202 	 */
    203 	int			ic_nchans;	/* # entries in ic_channels */
    204 	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
    205 	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
    206 	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
    207 	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
    208 	struct ieee80211_channel *ic_curchan;	/* current channel */
    209 	const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
    210 	struct ieee80211_channel *ic_bsschan;	/* bss channel */
    211 	struct ieee80211_channel *ic_prevchan;	/* previous channel */
    212 	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
    213 	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
    214 	struct ieee80211_channel *ic_countryie_chan;
    215 
    216 	/* 802.11h/DFS state */
    217 	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
    218 	short			ic_csa_mode;	/* mode for doing CSA */
    219 	short			ic_csa_count;	/* count for doing CSA */
    220 	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
    221 
    222 	struct ieee80211_scan_state *ic_scan;	/* scan state */
    223 	struct ieee80211_scan_methods *ic_scan_methods;	/* scan methods */
    224 	int			ic_lastdata;	/* time of last data frame */
    225 	int			ic_lastscan;	/* time last scan completed */
    226 
    227 	/* NB: this is the union of all vap stations/neighbors */
    228 	int			ic_max_keyix;	/* max h/w key index */
    229 	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
    230 	struct ieee80211_ageq	ic_stageq;	/* frame staging queue */
    231 	uint32_t		ic_hash_key;	/* random key for mac hash */
    232 
    233 	/* XXX multi-bss: split out common/vap parts */
    234 	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
    235 
    236 	/* XXX multi-bss: can per-vap be done/make sense? */
    237 	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
    238 	uint16_t		ic_nonerpsta;	/* # non-ERP stations */
    239 	uint16_t		ic_longslotsta;	/* # long slot time stations */
    240 	uint16_t		ic_sta_assoc;	/* stations associated */
    241 	uint16_t		ic_ht_sta_assoc;/* HT stations associated */
    242 	uint16_t		ic_ht40_sta_assoc;/* HT40 stations associated */
    243 	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
    244 	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
    245 	int			ic_lastnonerp;	/* last time non-ERP sta noted*/
    246 	int			ic_lastnonht;	/* last time non-HT sta noted */
    247 	uint8_t			ic_rxstream;    /* # RX streams */
    248 	uint8_t			ic_txstream;    /* # TX streams */
    249 
    250 	/* VHT information */
    251 	uint32_t		ic_vhtcaps;	/* VHT capabilities */
    252 	uint32_t		ic_vhtextcaps;	/* VHT extended capabilities (TODO) */
    253 	struct ieee80211_vht_mcs_info	ic_vht_mcsinfo; /* Support TX/RX VHT MCS */
    254 	uint32_t		ic_flags_vht;	/* VHT state flags */
    255 	uint32_t		ic_vht_spare[3];
    256 
    257 	/* optional state for Atheros SuperG protocol extensions */
    258 	struct ieee80211_superg	*ic_superg;
    259 
    260 	/* radiotap handling */
    261 	struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
    262 	void			*ic_txchan;	/* channel state in ic_th */
    263 	struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
    264 	void			*ic_rxchan;	/* channel state in ic_rh */
    265 	int			ic_montaps;	/* active monitor mode taps */
    266 
    267 	/* virtual ap create/delete */
    268 	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
    269 				    const char [IFNAMSIZ], int,
    270 				    enum ieee80211_opmode, int,
    271 				    const uint8_t [IEEE80211_ADDR_LEN],
    272 				    const uint8_t [IEEE80211_ADDR_LEN]);
    273 	void			(*ic_vap_delete)(struct ieee80211vap *);
    274 	/* device specific ioctls */
    275 	int			(*ic_ioctl)(struct ieee80211com *,
    276 				    u_long, void *);
    277 	/* start/stop device */
    278 	void			(*ic_parent)(struct ieee80211com *);
    279 	/* operating mode attachment */
    280 	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
    281 	/* return hardware/radio capabilities */
    282 	void			(*ic_getradiocaps)(struct ieee80211com *,
    283 				    int, int *, struct ieee80211_channel []);
    284 	/* check and/or prepare regdomain state change */
    285 	int			(*ic_setregdomain)(struct ieee80211com *,
    286 				    struct ieee80211_regdomain *,
    287 				    int, struct ieee80211_channel []);
    288 
    289 	int			(*ic_set_quiet)(struct ieee80211_node *,
    290 				    u_int8_t *quiet_elm);
    291 
    292 	/* regular transmit */
    293 	int			(*ic_transmit)(struct ieee80211com *,
    294 				    struct mbuf *);
    295 	/* send/recv 802.11 management frame */
    296 	int			(*ic_send_mgmt)(struct ieee80211_node *,
    297 				     int, int);
    298 	/* send raw 802.11 frame */
    299 	int			(*ic_raw_xmit)(struct ieee80211_node *,
    300 				    struct mbuf *,
    301 				    const struct ieee80211_bpf_params *);
    302 	/* update device state for 802.11 slot time change */
    303 	void			(*ic_updateslot)(struct ieee80211com *);
    304 	/* handle multicast state changes */
    305 	void			(*ic_update_mcast)(struct ieee80211com *);
    306 	/* handle promiscuous mode changes */
    307 	void			(*ic_update_promisc)(struct ieee80211com *);
    308 	/* new station association callback/notification */
    309 	void			(*ic_newassoc)(struct ieee80211_node *, int);
    310 	/* TDMA update notification */
    311 	void			(*ic_tdma_update)(struct ieee80211_node *,
    312 				    const struct ieee80211_tdma_param *, int);
    313 	/* node state management */
    314 	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
    315 				    const uint8_t [IEEE80211_ADDR_LEN]);
    316 	void			(*ic_node_free)(struct ieee80211_node *);
    317 	void			(*ic_node_cleanup)(struct ieee80211_node *);
    318 	void			(*ic_node_age)(struct ieee80211_node *);
    319 	void			(*ic_node_drain)(struct ieee80211_node *);
    320 	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
    321 	void			(*ic_node_getsignal)(const struct ieee80211_node*,
    322 				    int8_t *, int8_t *);
    323 	void			(*ic_node_getmimoinfo)(
    324 				    const struct ieee80211_node*,
    325 				    struct ieee80211_mimo_info *);
    326 	/* scanning support */
    327 	void			(*ic_scan_start)(struct ieee80211com *);
    328 	void			(*ic_scan_end)(struct ieee80211com *);
    329 	void			(*ic_set_channel)(struct ieee80211com *);
    330 	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
    331 				    unsigned long);
    332 	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
    333 
    334 	/*
    335 	 * 802.11n ADDBA support.  A simple/generic implementation
    336 	 * of A-MPDU tx aggregation is provided; the driver may
    337 	 * override these methods to provide their own support.
    338 	 * A-MPDU rx re-ordering happens automatically if the
    339 	 * driver passes out-of-order frames to ieee80211_input
    340 	 * from an assocated HT station.
    341 	 */
    342 	int			(*ic_recv_action)(struct ieee80211_node *,
    343 				    const struct ieee80211_frame *,
    344 				    const uint8_t *frm, const uint8_t *efrm);
    345 	int			(*ic_send_action)(struct ieee80211_node *,
    346 				    int category, int action, void *);
    347 	/* check if A-MPDU should be enabled this station+ac */
    348 	int			(*ic_ampdu_enable)(struct ieee80211_node *,
    349 				    struct ieee80211_tx_ampdu *);
    350 	/* start/stop doing A-MPDU tx aggregation for a station */
    351 	int			(*ic_addba_request)(struct ieee80211_node *,
    352 				    struct ieee80211_tx_ampdu *,
    353 				    int dialogtoken, int baparamset,
    354 				    int batimeout);
    355 	int			(*ic_addba_response)(struct ieee80211_node *,
    356 				    struct ieee80211_tx_ampdu *,
    357 				    int status, int baparamset, int batimeout);
    358 	void			(*ic_addba_stop)(struct ieee80211_node *,
    359 				    struct ieee80211_tx_ampdu *);
    360 	void			(*ic_addba_response_timeout)(struct ieee80211_node *,
    361 				    struct ieee80211_tx_ampdu *);
    362 	/* BAR response received */
    363 	void			(*ic_bar_response)(struct ieee80211_node *,
    364 				    struct ieee80211_tx_ampdu *, int status);
    365 	/* start/stop doing A-MPDU rx processing for a station */
    366 	int			(*ic_ampdu_rx_start)(struct ieee80211_node *,
    367 				    struct ieee80211_rx_ampdu *, int baparamset,
    368 				    int batimeout, int baseqctl);
    369 	void			(*ic_ampdu_rx_stop)(struct ieee80211_node *,
    370 				    struct ieee80211_rx_ampdu *);
    371 
    372 	/* The channel width has changed (20<->2040) */
    373 	void			(*ic_update_chw)(struct ieee80211com *);
    374 
    375 	uint64_t		ic_spare[7];
    376 };
    377 
    378 struct ieee80211_aclator;
    379 struct ieee80211_tdma_state;
    380 struct ieee80211_mesh_state;
    381 struct ieee80211_hwmp_state;
    382 
    383 struct ieee80211vap {
    384 	struct ifmedia		iv_media;	/* interface media config */
    385 	struct ifnet		*iv_ifp;	/* associated device */
    386 	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
    387 	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
    388 	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
    389 
    390 	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
    391 	struct ieee80211com	*iv_ic;		/* back ptr to common state */
    392 	/* MAC address: ifp or ic */
    393 	uint8_t			iv_myaddr[IEEE80211_ADDR_LEN];
    394 	uint32_t		iv_debug;	/* debug msg flags */
    395 	struct ieee80211_stats	iv_stats;	/* statistics */
    396 
    397 	uint32_t		iv_flags;	/* state flags */
    398 	uint32_t		iv_flags_ext;	/* extended state flags */
    399 	uint32_t		iv_flags_ht;	/* HT state flags */
    400 	uint32_t		iv_flags_ven;	/* vendor state flags */
    401 	uint32_t		iv_ifflags;	/* ifnet flags */
    402 	uint32_t		iv_caps;	/* capabilities */
    403 	uint32_t		iv_htcaps;	/* HT capabilities */
    404 	uint32_t		iv_htextcaps;	/* HT extended capabilities */
    405 	enum ieee80211_opmode	iv_opmode;	/* operation mode */
    406 	enum ieee80211_state	iv_state;	/* state machine state */
    407 	enum ieee80211_state	iv_nstate;	/* pending state */
    408 	int			iv_nstate_arg;	/* pending state arg */
    409 	struct task		iv_nstate_task;	/* deferred state processing */
    410 	struct task		iv_swbmiss_task;/* deferred iv_bmiss call */
    411 	struct callout		iv_mgtsend;	/* mgmt frame response timer */
    412 						/* inactivity timer settings */
    413 	int			iv_inact_init;	/* setting for new station */
    414 	int			iv_inact_auth;	/* auth but not assoc setting */
    415 	int			iv_inact_run;	/* authorized setting */
    416 	int			iv_inact_probe;	/* inactive probe time */
    417 
    418 	/* VHT flags */
    419 	uint32_t		iv_flags_vht;	/* VHT state flags */
    420 	uint32_t		iv_vhtcaps;	/* VHT capabilities */
    421 	uint32_t		iv_vhtextcaps;	/* VHT extended capabilities (TODO) */
    422 	struct ieee80211_vht_mcs_info	iv_vht_mcsinfo;
    423 	uint32_t		iv_vht_spare[4];
    424 
    425 	int			iv_des_nssid;	/* # desired ssids */
    426 	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
    427 	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
    428 	struct ieee80211_channel *iv_des_chan;	/* desired channel */
    429 	uint16_t		iv_des_mode;	/* desired mode */
    430 	int			iv_nicknamelen;	/* XXX junk */
    431 	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
    432 	u_int			iv_bgscanidle;	/* bg scan idle threshold */
    433 	u_int			iv_bgscanintvl;	/* bg scan min interval */
    434 	u_int			iv_scanvalid;	/* scan cache valid threshold */
    435 	u_int			iv_scanreq_duration;
    436 	u_int			iv_scanreq_mindwell;
    437 	u_int			iv_scanreq_maxdwell;
    438 	uint16_t		iv_scanreq_flags;/* held scan request params */
    439 	uint8_t			iv_scanreq_nssid;
    440 	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
    441 	/* sta-mode roaming state */
    442 	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
    443 	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
    444 
    445 	uint8_t			iv_bmissthreshold;
    446 	uint8_t			iv_bmiss_count;	/* current beacon miss count */
    447 	int			iv_bmiss_max;	/* max bmiss before scan */
    448 	uint16_t		iv_swbmiss_count;/* beacons in last period */
    449 	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
    450 	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
    451 
    452 	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
    453 	int			iv_ampdu_density;/* A-MPDU density */
    454 	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
    455 	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
    456 	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
    457 
    458 	struct ieee80211_beacon_offsets iv_bcn_off;
    459 	uint32_t		*iv_aid_bitmap;	/* association id map */
    460 	uint16_t		iv_max_aid;
    461 	uint16_t		iv_sta_assoc;	/* stations associated */
    462 	uint16_t		iv_ps_sta;	/* stations in power save */
    463 	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
    464 	uint16_t		iv_txseq;	/* mcast xmit seq# space */
    465 	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
    466 	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
    467 	uint8_t			iv_dtim_period;	/* DTIM period */
    468 	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
    469 						/* set/unset aid pwrsav state */
    470 	uint8_t			iv_quiet;	/* Quiet Element */
    471 	uint8_t			iv_quiet_count;	/* constant count for Quiet Element */
    472 	uint8_t			iv_quiet_count_value;	/* variable count for Quiet Element */
    473 	uint8_t			iv_quiet_period;	/* period for Quiet Element */
    474 	uint16_t		iv_quiet_duration;	/* duration for Quiet Element */
    475 	uint16_t		iv_quiet_offset;	/* offset for Quiet Element */
    476 	int			iv_csa_count;	/* count for doing CSA */
    477 
    478 	struct ieee80211_node	*iv_bss;	/* information for this node */
    479 	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
    480 	uint16_t		iv_rtsthreshold;
    481 	uint16_t		iv_fragthreshold;
    482 	int			iv_inact_timer;	/* inactivity timer wait */
    483 	/* application-specified IE's to attach to mgt frames */
    484 	struct ieee80211_appie	*iv_appie_beacon;
    485 	struct ieee80211_appie	*iv_appie_probereq;
    486 	struct ieee80211_appie	*iv_appie_proberesp;
    487 	struct ieee80211_appie	*iv_appie_assocreq;
    488 	struct ieee80211_appie	*iv_appie_assocresp;
    489 	struct ieee80211_appie	*iv_appie_wpa;
    490 	uint8_t			*iv_wpa_ie;
    491 	uint8_t			*iv_rsn_ie;
    492 
    493 	/* Key management */
    494 	uint16_t		iv_max_keyix;	/* max h/w key index */
    495 	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
    496 	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
    497 	int			(*iv_key_alloc)(struct ieee80211vap *,
    498 				    struct ieee80211_key *,
    499 				    ieee80211_keyix *, ieee80211_keyix *);
    500 	int			(*iv_key_delete)(struct ieee80211vap *,
    501 				    const struct ieee80211_key *);
    502 	int			(*iv_key_set)(struct ieee80211vap *,
    503 				    const struct ieee80211_key *);
    504 	void			(*iv_key_update_begin)(struct ieee80211vap *);
    505 	void			(*iv_key_update_end)(struct ieee80211vap *);
    506 	void			(*iv_update_deftxkey)(struct ieee80211vap *,
    507 				    ieee80211_keyix deftxkey);
    508 
    509 	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
    510 	void			*iv_ec;		/* private auth state */
    511 
    512 	const struct ieee80211_aclator *iv_acl;	/* acl glue */
    513 	void			*iv_as;		/* private aclator state */
    514 
    515 	const struct ieee80211_ratectl *iv_rate;
    516 	void			*iv_rs;		/* private ratectl state */
    517 
    518 	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
    519 	struct ieee80211_mesh_state *iv_mesh;	/* MBSS state */
    520 	struct ieee80211_hwmp_state *iv_hwmp;	/* HWMP state */
    521 
    522 	/* operate-mode detach hook */
    523 	void			(*iv_opdetach)(struct ieee80211vap *);
    524 	/* receive processing */
    525 	int			(*iv_input)(struct ieee80211_node *,
    526 				    struct mbuf *,
    527 				    const struct ieee80211_rx_stats *,
    528 				    int, int);
    529 	void			(*iv_recv_mgmt)(struct ieee80211_node *,
    530 				    struct mbuf *, int,
    531 				    const struct ieee80211_rx_stats *,
    532 				    int, int);
    533 	void			(*iv_recv_ctl)(struct ieee80211_node *,
    534 				    struct mbuf *, int);
    535 	void			(*iv_deliver_data)(struct ieee80211vap *,
    536 				    struct ieee80211_node *, struct mbuf *);
    537 #if 0
    538 	/* send processing */
    539 	int			(*iv_send_mgmt)(struct ieee80211_node *,
    540 				     int, int);
    541 #endif
    542 	/* beacon miss processing */
    543 	void			(*iv_bmiss)(struct ieee80211vap *);
    544 	/* reset device state after 802.11 parameter/state change */
    545 	int			(*iv_reset)(struct ieee80211vap *, u_long);
    546 	/* [schedule] beacon frame update */
    547 	void			(*iv_update_beacon)(struct ieee80211vap *, int);
    548 	/* power save handling */
    549 	void			(*iv_update_ps)(struct ieee80211vap *, int);
    550 	int			(*iv_set_tim)(struct ieee80211_node *, int);
    551 	void			(*iv_node_ps)(struct ieee80211_node *, int);
    552 	void			(*iv_sta_ps)(struct ieee80211vap *, int);
    553 	void			(*iv_recv_pspoll)(struct ieee80211_node *,
    554 				    struct mbuf *);
    555 
    556 	/* state machine processing */
    557 	int			(*iv_newstate)(struct ieee80211vap *,
    558 				    enum ieee80211_state, int);
    559 	/* 802.3 output method for raw frame xmit */
    560 	int			(*iv_output)(struct ifnet *, struct mbuf *,
    561 				    const struct sockaddr *, struct route *);
    562 
    563 	int			(*iv_wme_update)(struct ieee80211vap *,
    564 				    const struct wmeParams *wme_params);
    565 	struct task		iv_wme_task;	/* deferred VAP WME update */
    566 
    567 	uint64_t		iv_spare[6];
    568 };
    569 MALLOC_DECLARE(M_80211_VAP);
    570 
    571 #define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
    572 #define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
    573 
    574 /* ic_flags/iv_flags */
    575 #define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
    576 #define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
    577 #define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
    578 #define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
    579 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
    580 #define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
    581 #define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
    582 #define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
    583 /* 0x00000300 reserved */
    584 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
    585 #define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
    586 #define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
    587 #define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
    588 #define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
    589 #define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
    590 #define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
    591 /* 0x00030000 reserved */
    592 #define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
    593 #define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
    594 #define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
    595 #define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
    596 #define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
    597 #define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
    598 #define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
    599 #define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
    600 #define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
    601 #define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
    602 #define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
    603 #define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
    604 #define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
    605 #define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
    606 #define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
    607 
    608 #define	IEEE80211_F_BITS \
    609 	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN" \
    610 	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY" \
    611 	"\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
    612 	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
    613 	"\37DOTH\40DWDS"
    614 
    615 /* Atheros protocol-specific flags */
    616 #define	IEEE80211_F_ATHEROS \
    617 	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
    618 /* Check if an Atheros capability was negotiated for use */
    619 #define	IEEE80211_ATH_CAP(vap, ni, bit) \
    620 	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
    621 
    622 /* ic_flags_ext/iv_flags_ext */
    623 #define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
    624 #define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
    625 /* 0x00000006 reserved */
    626 #define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
    627 #define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
    628 #define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
    629 #define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
    630 #define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
    631 #define	IEEE80211_FEXT_4ADDR	 0x00000100	/* CONF: apply 4-addr encap */
    632 #define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
    633 #define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
    634 #define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
    635 #define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
    636 #define	IEEE80211_FEXT_STATEWAIT 0x00002000	/* STATUS: awaiting state chg */
    637 #define	IEEE80211_FEXT_REINIT	 0x00004000	/* STATUS: INIT state first */
    638 #define	IEEE80211_FEXT_BPF	 0x00008000	/* STATUS: BPF tap present */
    639 /* NB: immutable: should be set only when creating a vap */
    640 #define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
    641 #define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
    642 #define	IEEE80211_FEXT_UNIQMAC	 0x00040000	/* CONF: user or computed mac */
    643 #define	IEEE80211_FEXT_SCAN_OFFLOAD	0x00080000	/* CONF: scan is fully offloaded */
    644 #define	IEEE80211_FEXT_SEQNO_OFFLOAD	0x00100000	/* CONF: driver does seqno insertion/allocation */
    645 #define	IEEE80211_FEXT_FRAG_OFFLOAD	0x00200000	/* CONF: hardware does 802.11 fragmentation + assignment */
    646 #define	IEEE80211_FEXT_VHT	0x00400000	/* CONF: VHT support */
    647 #define	IEEE80211_FEXT_QUIET_IE	0x00800000	/* STATUS: quiet IE in a beacon has been added */
    648 
    649 #define	IEEE80211_FEXT_BITS \
    650 	"\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
    651 	"\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
    652 	"\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC\24SCAN_OFFLOAD\25SEQNO_OFFLOAD" \
    653 	"\26VHT\27QUIET_IE"
    654 
    655 /* ic_flags_ht/iv_flags_ht */
    656 #define	IEEE80211_FHT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
    657 #define	IEEE80211_FHT_LDPC_TX	 0x00010000	/* CONF: LDPC tx enabled */
    658 #define	IEEE80211_FHT_LDPC_RX	 0x00020000	/* CONF: LDPC rx enabled */
    659 #define	IEEE80211_FHT_GF  	 0x00040000	/* CONF: Greenfield enabled */
    660 #define	IEEE80211_FHT_HT	 0x00080000	/* CONF: HT supported */
    661 #define	IEEE80211_FHT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
    662 #define	IEEE80211_FHT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU rx supported */
    663 #define	IEEE80211_FHT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
    664 #define	IEEE80211_FHT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU rx supported */
    665 #define	IEEE80211_FHT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
    666 #define	IEEE80211_FHT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
    667 #define	IEEE80211_FHT_SHORTGI20	 0x04000000	/* CONF: short GI in HT20 */
    668 #define	IEEE80211_FHT_SHORTGI40	 0x08000000	/* CONF: short GI in HT40 */
    669 #define	IEEE80211_FHT_HTCOMPAT 	 0x10000000	/* CONF: HT vendor OUI's */
    670 #define	IEEE80211_FHT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
    671 #define	IEEE80211_FHT_STBC_TX 	 0x40000000	/* CONF: STBC tx enabled */
    672 #define	IEEE80211_FHT_STBC_RX 	 0x80000000	/* CONF: STBC rx enabled */
    673 
    674 #define	IEEE80211_FHT_BITS \
    675 	"\20\1NONHT_PR" \
    676 	"\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
    677 	"\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
    678 	"\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
    679 
    680 #define	IEEE80211_FVEN_BITS	"\20"
    681 
    682 #define	IEEE80211_FVHT_VHT	0x000000001	/* CONF: VHT supported */
    683 #define	IEEE80211_FVHT_USEVHT40	0x000000002	/* CONF: Use VHT40 */
    684 #define	IEEE80211_FVHT_USEVHT80	0x000000004	/* CONF: Use VHT80 */
    685 #define	IEEE80211_FVHT_USEVHT80P80	0x000000008	/* CONF: Use VHT 80+80 */
    686 #define	IEEE80211_FVHT_USEVHT160	0x000000010	/* CONF: Use VHT160 */
    687 #define	IEEE80211_VFHT_BITS \
    688 	"\20\1VHT\2VHT40\3VHT80\4VHT80P80\5VHT160"
    689 
    690 int	ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
    691 void	ieee80211_ifattach(struct ieee80211com *);
    692 void	ieee80211_ifdetach(struct ieee80211com *);
    693 int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
    694 		const char name[IFNAMSIZ], int unit,
    695 		enum ieee80211_opmode opmode, int flags,
    696 		const uint8_t bssid[IEEE80211_ADDR_LEN]);
    697 int	ieee80211_vap_attach(struct ieee80211vap *,
    698 		ifm_change_cb_t, ifm_stat_cb_t,
    699 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
    700 void	ieee80211_vap_detach(struct ieee80211vap *);
    701 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
    702 		const struct ieee80211_channel *);
    703 const struct ieee80211_htrateset *ieee80211_get_suphtrates(
    704 		struct ieee80211com *, const struct ieee80211_channel *);
    705 void	ieee80211_announce(struct ieee80211com *);
    706 void	ieee80211_announce_channels(struct ieee80211com *);
    707 void	ieee80211_drain(struct ieee80211com *);
    708 void	ieee80211_chan_init(struct ieee80211com *);
    709 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
    710 struct ieee80211com *ieee80211_find_com(const char *name);
    711 typedef void ieee80211_com_iter_func(void *, struct ieee80211com *);
    712 void	ieee80211_iterate_coms(ieee80211_com_iter_func *, void *);
    713 int	ieee80211_media_change(struct ifnet *);
    714 void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
    715 int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
    716 int	ieee80211_rate2media(struct ieee80211com *, int,
    717 		enum ieee80211_phymode);
    718 int	ieee80211_media2rate(int);
    719 int	ieee80211_mhz2ieee(u_int, u_int);
    720 int	ieee80211_chan2ieee(struct ieee80211com *,
    721 		const struct ieee80211_channel *);
    722 u_int	ieee80211_ieee2mhz(u_int, u_int);
    723 int	ieee80211_add_channel(struct ieee80211_channel[], int, int *,
    724 	    uint8_t, uint16_t, int8_t, uint32_t, const uint8_t[]);
    725 int	ieee80211_add_channel_ht40(struct ieee80211_channel[], int, int *,
    726 	    uint8_t, int8_t, uint32_t);
    727 uint32_t ieee80211_get_channel_center_freq(const struct ieee80211_channel *);
    728 uint32_t ieee80211_get_channel_center_freq1(const struct ieee80211_channel *);
    729 uint32_t ieee80211_get_channel_center_freq2(const struct ieee80211_channel *);
    730 int	ieee80211_add_channel_list_2ghz(struct ieee80211_channel[], int, int *,
    731 	    const uint8_t[], int, const uint8_t[], int);
    732 int	ieee80211_add_channel_list_5ghz(struct ieee80211_channel[], int, int *,
    733 	    const uint8_t[], int, const uint8_t[], int);
    734 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
    735 		int freq, int flags);
    736 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
    737 		int ieee, int flags);
    738 struct ieee80211_channel *ieee80211_lookup_channel_rxstatus(struct ieee80211vap *,
    739 		const struct ieee80211_rx_stats *);
    740 int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
    741 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
    742 uint32_t ieee80211_mac_hash(const struct ieee80211com *,
    743 		const uint8_t addr[IEEE80211_ADDR_LEN]);
    744 char	ieee80211_channel_type_char(const struct ieee80211_channel *c);
    745 
    746 #define	ieee80211_get_current_channel(_ic)	((_ic)->ic_curchan)
    747 #define	ieee80211_get_home_channel(_ic)		((_ic)->ic_bsschan)
    748 #define	ieee80211_get_vap_desired_channel(_iv)	((_iv)->iv_des_chan)
    749 
    750 void	ieee80211_radiotap_attach(struct ieee80211com *,
    751 	    struct ieee80211_radiotap_header *th, int tlen,
    752 		uint32_t tx_radiotap,
    753 	    struct ieee80211_radiotap_header *rh, int rlen,
    754 		uint32_t rx_radiotap);
    755 void	ieee80211_radiotap_attachv(struct ieee80211com *,
    756 	    struct ieee80211_radiotap_header *th,
    757 	    int tlen, int n_tx_v, uint32_t tx_radiotap,
    758 	    struct ieee80211_radiotap_header *rh,
    759 	    int rlen, int n_rx_v, uint32_t rx_radiotap);
    760 void	ieee80211_radiotap_detach(struct ieee80211com *);
    761 void	ieee80211_radiotap_vattach(struct ieee80211vap *);
    762 void	ieee80211_radiotap_vdetach(struct ieee80211vap *);
    763 void	ieee80211_radiotap_chan_change(struct ieee80211com *);
    764 void	ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
    765 void	ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
    766 void	ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
    767 
    768 static __inline int
    769 ieee80211_radiotap_active(const struct ieee80211com *ic)
    770 {
    771 	return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
    772 }
    773 
    774 static __inline int
    775 ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
    776 {
    777 	return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
    778 	    vap->iv_ic->ic_montaps != 0;
    779 }
    780 
    781 /*
    782  * Enqueue a task on the state thread.
    783  */
    784 static __inline void
    785 ieee80211_runtask(struct ieee80211com *ic, struct task *task)
    786 {
    787 	taskqueue_enqueue(ic->ic_tq, task);
    788 }
    789 
    790 /*
    791  * Wait for a queued task to complete.
    792  */
    793 static __inline void
    794 ieee80211_draintask(struct ieee80211com *ic, struct task *task)
    795 {
    796 	taskqueue_drain(ic->ic_tq, task);
    797 }
    798 
    799 /*
    800  * Key update synchronization methods.  XXX should not be visible.
    801  */
    802 static __inline void
    803 ieee80211_key_update_begin(struct ieee80211vap *vap)
    804 {
    805 	vap->iv_key_update_begin(vap);
    806 }
    807 static __inline void
    808 ieee80211_key_update_end(struct ieee80211vap *vap)
    809 {
    810 	vap->iv_key_update_end(vap);
    811 }
    812 
    813 /*
    814  * XXX these need to be here for IEEE80211_F_DATAPAD
    815  */
    816 
    817 /*
    818  * Return the space occupied by the 802.11 header and any
    819  * padding required by the driver.  This works for a
    820  * management or data frame.
    821  */
    822 static __inline int
    823 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
    824 {
    825 	int size = ieee80211_hdrsize(data);
    826 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
    827 		size = roundup(size, sizeof(uint32_t));
    828 	return size;
    829 }
    830 
    831 /*
    832  * Like ieee80211_hdrspace, but handles any type of frame.
    833  */
    834 static __inline int
    835 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
    836 {
    837 	int size = ieee80211_anyhdrsize(data);
    838 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
    839 		size = roundup(size, sizeof(uint32_t));
    840 	return size;
    841 }
    842 
    843 /*
    844  * Notify a vap that beacon state has been updated.
    845  */
    846 static __inline void
    847 ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
    848 {
    849 	if (vap->iv_state == IEEE80211_S_RUN)
    850 		vap->iv_update_beacon(vap, what);
    851 }
    852 
    853 /*
    854  * Calculate HT channel promotion flags for a channel.
    855  * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
    856  */
    857 static __inline int
    858 ieee80211_htchanflags(const struct ieee80211_channel *c)
    859 {
    860 	return IEEE80211_IS_CHAN_HT40(c) ?
    861 	    IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
    862 	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
    863 }
    864 
    865 /*
    866  * Calculate VHT channel promotion flags for a channel.
    867  * XXX belongs in ieee80211_vht.h but needs IEEE80211_FVHT_*
    868  */
    869 static __inline int
    870 ieee80211_vhtchanflags(const struct ieee80211_channel *c)
    871 {
    872 
    873 	if (IEEE80211_IS_CHAN_VHT160(c))
    874 		return IEEE80211_FVHT_USEVHT160;
    875 	if (IEEE80211_IS_CHAN_VHT80_80(c))
    876 		return IEEE80211_FVHT_USEVHT80P80;
    877 	if (IEEE80211_IS_CHAN_VHT80(c))
    878 		return IEEE80211_FVHT_USEVHT80;
    879 	if (IEEE80211_IS_CHAN_VHT40(c))
    880 		return IEEE80211_FVHT_USEVHT40;
    881 	if (IEEE80211_IS_CHAN_VHT(c))
    882 		return IEEE80211_FVHT_VHT;
    883 	return (0);
    884 }
    885 
    886 /*
    887  * Fetch the current TX power (cap) for the given node.
    888  *
    889  * This includes the node and ic/vap TX power limit as needed,
    890  * but it doesn't take into account any per-rate limit.
    891  */
    892 static __inline uint16_t
    893 ieee80211_get_node_txpower(struct ieee80211_node *ni)
    894 {
    895 	struct ieee80211com *ic = ni->ni_ic;
    896 	uint16_t txpower;
    897 
    898 	txpower = ni->ni_txpower;
    899 	txpower = MIN(txpower, ic->ic_txpowlimit);
    900 	if (ic->ic_curchan != NULL) {
    901 		txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
    902 		txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
    903 	}
    904 
    905 	return (txpower);
    906 }
    907 
    908 /*
    909  * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
    910  *
    911  * The intent is that any problem in the net80211 layer can be
    912  * diagnosed by inspecting the statistics (dumped by the wlanstats
    913  * program) and/or the msgs generated by net80211.  Messages are
    914  * broken into functional classes and can be controlled with the
    915  * wlandebug program.  Certain of these msg groups are for facilities
    916  * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
    917  */
    918 #define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
    919 #define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
    920 #define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
    921 #define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
    922 #define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
    923 #define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
    924 #define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
    925 #define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
    926 #define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
    927 #define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
    928 #define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
    929 #define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
    930 #define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
    931 #define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
    932 #define	IEEE80211_MSG_HWMP	0x00020000	/* hybrid mesh protocol */
    933 #define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
    934 #define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
    935 #define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
    936 #define	IEEE80211_MSG_MESH	0x00002000	/* mesh networking */
    937 #define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
    938 #define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
    939 #define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
    940 #define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
    941 #define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
    942 #define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
    943 #define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
    944 #define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
    945 #define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
    946 #define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
    947 #define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
    948 #define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
    949 
    950 #define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
    951 
    952 #define	IEEE80211_MSG_BITS \
    953 	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
    954 	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
    955 	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
    956 	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
    957 
    958 #ifdef IEEE80211_DEBUG
    959 #define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
    960 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
    961 	if (ieee80211_msg(_vap, _m))					\
    962 		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
    963 } while (0)
    964 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
    965 	if (ieee80211_msg(_vap, _m))					\
    966 		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
    967 } while (0)
    968 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
    969 	if (ieee80211_msg(_vap, _m))					\
    970 		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
    971 } while (0)
    972 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
    973 	if (ieee80211_msg(_vap, _m))					\
    974 		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
    975 } while (0)
    976 void	ieee80211_note(const struct ieee80211vap *, const char *, ...);
    977 void	ieee80211_note_mac(const struct ieee80211vap *,
    978 		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
    979 void	ieee80211_note_frame(const struct ieee80211vap *,
    980 		const struct ieee80211_frame *, const char *, ...);
    981 #define	ieee80211_msg_debug(_vap) \
    982 	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
    983 #define	ieee80211_msg_dumppkts(_vap) \
    984 	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
    985 #define	ieee80211_msg_input(_vap) \
    986 	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
    987 #define	ieee80211_msg_radius(_vap) \
    988 	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
    989 #define	ieee80211_msg_dumpradius(_vap) \
    990 	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
    991 #define	ieee80211_msg_dumpradkeys(_vap) \
    992 	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
    993 #define	ieee80211_msg_scan(_vap) \
    994 	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
    995 #define	ieee80211_msg_assoc(_vap) \
    996 	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
    997 
    998 /*
    999  * Emit a debug message about discarding a frame or information
   1000  * element.  One format is for extracting the mac address from
   1001  * the frame header; the other is for when a header is not
   1002  * available or otherwise appropriate.
   1003  */
   1004 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
   1005 	if ((_vap)->iv_debug & (_m))					\
   1006 		ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
   1007 } while (0)
   1008 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
   1009 	if ((_vap)->iv_debug & (_m))					\
   1010 		ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
   1011 } while (0)
   1012 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
   1013 	if ((_vap)->iv_debug & (_m))					\
   1014 		ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
   1015 } while (0)
   1016 
   1017 void ieee80211_discard_frame(const struct ieee80211vap *,
   1018 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
   1019 void ieee80211_discard_ie(const struct ieee80211vap *,
   1020 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
   1021 void ieee80211_discard_mac(const struct ieee80211vap *,
   1022 	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
   1023 	const char *fmt, ...);
   1024 #else
   1025 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
   1026 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
   1027 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
   1028 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
   1029 #define	ieee80211_msg_dumppkts(_vap)	0
   1030 #define	ieee80211_msg(_vap, _m)		0
   1031 
   1032 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
   1033 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
   1034 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
   1035 #endif
   1036 
   1037 #endif /* _NET80211_IEEE80211_VAR_H_ */
   1038