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ieee80211_var.h revision 1.33.2.1
      1 /*-
      2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      3  *
      4  * Copyright (c) 2001 Atsushi Onoe
      5  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  *
     28  * $FreeBSD$
     29  */
     30 #ifndef _NET80211_IEEE80211_VAR_H_
     31 #define _NET80211_IEEE80211_VAR_H_
     32 
     33 /*
     34  * Definitions for IEEE 802.11 drivers.
     35  */
     36 /* NB: portability glue must go first */
     37 #if defined(__NetBSD__)
     38 #include <net80211/ieee80211_netbsd.h>
     39 #elif defined(__FreeBSD__)
     40 #include <net80211/ieee80211_freebsd.h>
     41 #elif defined(__linux__)
     42 #include <net80211/ieee80211_linux.h>
     43 #else
     44 #error	"No support for your operating system!"
     45 #endif
     46 
     47 #include <net80211/_ieee80211.h>
     48 #include <net80211/ieee80211.h>
     49 #include <net80211/ieee80211_ageq.h>
     50 #include <net80211/ieee80211_crypto.h>
     51 #include <net80211/ieee80211_dfs.h>
     52 #include <net80211/ieee80211_ioctl.h>		/* for ieee80211_stats */
     53 #include <net80211/ieee80211_phy.h>
     54 #include <net80211/ieee80211_power.h>
     55 #include <net80211/ieee80211_node.h>
     56 #include <net80211/ieee80211_proto.h>
     57 #include <net80211/ieee80211_radiotap.h>
     58 #include <net80211/ieee80211_scan.h>
     59 
     60 #define	IEEE80211_TXPOWER_MAX	100	/* .5 dBm (XXX units?) */
     61 #define	IEEE80211_TXPOWER_MIN	0	/* kill radio */
     62 
     63 #define	IEEE80211_DTIM_DEFAULT	1	/* default DTIM period */
     64 #define	IEEE80211_BINTVAL_DEFAULT 100	/* default beacon interval (TU's) */
     65 
     66 #define	IEEE80211_BMISS_MAX	2	/* maximum consecutive bmiss allowed */
     67 #define	IEEE80211_HWBMISS_DEFAULT 7	/* h/w bmiss threshold (beacons) */
     68 
     69 #define	IEEE80211_BGSCAN_INTVAL_MIN	15	/* min bg scan intvl (secs) */
     70 #define	IEEE80211_BGSCAN_INTVAL_DEFAULT	(5*60)	/* default bg scan intvl */
     71 
     72 #define	IEEE80211_BGSCAN_IDLE_MIN	100	/* min idle time (ms) */
     73 #define	IEEE80211_BGSCAN_IDLE_DEFAULT	250	/* default idle time (ms) */
     74 
     75 #define	IEEE80211_SCAN_VALID_MIN	10	/* min scan valid time (secs) */
     76 #define	IEEE80211_SCAN_VALID_DEFAULT	60	/* default scan valid time */
     77 
     78 #define	IEEE80211_PS_SLEEP	0x1	/* STA is in power saving mode */
     79 #define	IEEE80211_PS_MAX_QUEUE	50	/* maximum saved packets */
     80 
     81 #define	IEEE80211_FIXED_RATE_NONE	0xff
     82 #define	IEEE80211_TXMAX_DEFAULT		6	/* default ucast max retries */
     83 
     84 #define	IEEE80211_RTS_DEFAULT		IEEE80211_RTS_MAX
     85 #define	IEEE80211_FRAG_DEFAULT		IEEE80211_FRAG_MAX
     86 
     87 #define	IEEE80211_MS_TO_TU(x)	(((x) * 1000) / 1024)
     88 #define	IEEE80211_TU_TO_MS(x)	(((x) * 1024) / 1000)
     89 /* XXX TODO: cap this at 1, in case hz is not 1000 */
     90 #define	IEEE80211_TU_TO_TICKS(x)(((uint64_t)(x) * 1024 * hz) / (1000 * 1000))
     91 
     92 /*
     93  * Technically, vhtflags may be 0 /and/ 11ac is enabled.
     94  * At some point ic should just grow a flag somewhere that
     95  * says that VHT is supported - and then this macro can be
     96  * changed.
     97  */
     98 #define	IEEE80211_CONF_VHT(ic)			\
     99 	    ((ic)->ic_flags_ext & IEEE80211_FEXT_VHT)
    100 
    101 #define	IEEE80211_CONF_SEQNO_OFFLOAD(ic)	\
    102 	    ((ic)->ic_flags_ext & IEEE80211_FEXT_SEQNO_OFFLOAD)
    103 #define	IEEE80211_CONF_FRAG_OFFLOAD(ic)	\
    104 	    ((ic)->ic_flags_ext & IEEE80211_FEXT_FRAG_OFFLOAD)
    105 
    106 /*
    107  * 802.11 control state is split into a common portion that maps
    108  * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
    109  * that are bound to an ieee80211com instance and share a single
    110  * underlying device.  Each VAP has a corresponding OS device
    111  * entity through which traffic flows and that applications use
    112  * for issuing ioctls, etc.
    113  */
    114 
    115 /*
    116  * Data common to one or more virtual AP's.  State shared by
    117  * the underlying device and the net80211 layer is exposed here;
    118  * e.g. device-specific callbacks.
    119  */
    120 struct ieee80211vap;
    121 typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
    122 
    123 struct ieee80211_appie {
    124 	uint16_t		ie_len;		/* size of ie_data */
    125 	uint8_t			ie_data[];	/* user-specified IE's */
    126 };
    127 
    128 struct ieee80211_tdma_param;
    129 struct ieee80211_rate_table;
    130 struct ieee80211_tx_ampdu;
    131 struct ieee80211_rx_ampdu;
    132 struct ieee80211_superg;
    133 struct ieee80211_frame;
    134 
    135 struct ieee80211com {
    136 	void			*ic_softc;	/* driver softc */
    137 	const char		*ic_name;	/* usually device name */
    138 	ieee80211_com_lock_t	ic_comlock;	/* state update lock */
    139 	ieee80211_tx_lock_t	ic_txlock;	/* ic/vap TX lock */
    140 	ieee80211_ff_lock_t	ic_fflock;	/* stageq/ni_tx_superg lock */
    141 	LIST_ENTRY(ieee80211com)   ic_next;	/* on global list */
    142 	TAILQ_HEAD(, ieee80211vap) ic_vaps;	/* list of vap instances */
    143 	int			ic_headroom;	/* driver tx headroom needs */
    144 	enum ieee80211_phytype	ic_phytype;	/* XXX wrong for multi-mode */
    145 	enum ieee80211_opmode	ic_opmode;	/* operation mode */
    146 	struct callout		ic_inact;	/* inactivity processing */
    147 	struct taskqueue	*ic_tq;		/* deferred state thread */
    148 	struct task		ic_parent_task;	/* deferred parent processing */
    149 	struct task		ic_promisc_task;/* deferred promisc update */
    150 	struct task		ic_mcast_task;	/* deferred mcast update */
    151 	struct task		ic_chan_task;	/* deferred channel change */
    152 	struct task		ic_bmiss_task;	/* deferred beacon miss hndlr */
    153 	struct task		ic_chw_task;	/* deferred HT CHW update */
    154 	struct task		ic_restart_task; /* deferred device restart */
    155 
    156 	counter_u64_t		ic_ierrors;	/* input errors */
    157 	counter_u64_t		ic_oerrors;	/* output errors */
    158 
    159 	uint32_t		ic_flags;	/* state flags */
    160 	uint32_t		ic_flags_ext;	/* extended state flags */
    161 	uint32_t		ic_flags_ht;	/* HT state flags */
    162 	uint32_t		ic_flags_ven;	/* vendor state flags */
    163 	uint32_t		ic_caps;	/* capabilities */
    164 	uint32_t		ic_htcaps;	/* HT capabilities */
    165 	uint32_t		ic_htextcaps;	/* HT extended capabilities */
    166 	uint32_t		ic_cryptocaps;	/* crypto capabilities */
    167 						/* set of mode capabilities */
    168 	uint8_t			ic_modecaps[IEEE80211_MODE_BYTES];
    169 	uint8_t			ic_promisc;	/* vap's needing promisc mode */
    170 	uint8_t			ic_allmulti;	/* vap's needing all multicast*/
    171 	uint8_t			ic_nrunning;	/* vap's marked running */
    172 	uint8_t			ic_curmode;	/* current mode */
    173 	uint8_t			ic_macaddr[IEEE80211_ADDR_LEN];
    174 	uint16_t		ic_bintval;	/* beacon interval */
    175 	uint16_t		ic_lintval;	/* listen interval */
    176 	uint16_t		ic_holdover;	/* PM hold over duration */
    177 	uint16_t		ic_txpowlimit;	/* global tx power limit */
    178 	struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
    179 	struct ieee80211_htrateset ic_sup_htrates;
    180 
    181 	/*
    182 	 * Channel state:
    183 	 *
    184 	 * ic_channels is the set of available channels for the device;
    185 	 *    it is setup by the driver
    186 	 * ic_nchans is the number of valid entries in ic_channels
    187 	 * ic_chan_avail is a bit vector of these channels used to check
    188 	 *    whether a channel is available w/o searching the channel table.
    189 	 * ic_chan_active is a (potentially) constrained subset of
    190 	 *    ic_chan_avail that reflects any mode setting or user-specified
    191 	 *    limit on the set of channels to use/scan
    192 	 * ic_curchan is the current channel the device is set to; it may
    193 	 *    be different from ic_bsschan when we are off-channel scanning
    194 	 *    or otherwise doing background work
    195 	 * ic_bsschan is the channel selected for operation; it may
    196 	 *    be undefined (IEEE80211_CHAN_ANYC)
    197 	 * ic_prevchan is a cached ``previous channel'' used to optimize
    198 	 *    lookups when switching back+forth between two channels
    199 	 *    (e.g. for dynamic turbo)
    200 	 */
    201 	int			ic_nchans;	/* # entries in ic_channels */
    202 	struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
    203 	uint8_t			ic_chan_avail[IEEE80211_CHAN_BYTES];
    204 	uint8_t			ic_chan_active[IEEE80211_CHAN_BYTES];
    205 	uint8_t			ic_chan_scan[IEEE80211_CHAN_BYTES];
    206 	struct ieee80211_channel *ic_curchan;	/* current channel */
    207 	const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
    208 	struct ieee80211_channel *ic_bsschan;	/* bss channel */
    209 	struct ieee80211_channel *ic_prevchan;	/* previous channel */
    210 	struct ieee80211_regdomain ic_regdomain;/* regulatory data */
    211 	struct ieee80211_appie	*ic_countryie;	/* calculated country ie */
    212 	struct ieee80211_channel *ic_countryie_chan;
    213 
    214 	/* 802.11h/DFS state */
    215 	struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
    216 	short			ic_csa_mode;	/* mode for doing CSA */
    217 	short			ic_csa_count;	/* count for doing CSA */
    218 	struct ieee80211_dfs_state ic_dfs;	/* DFS state */
    219 
    220 	struct ieee80211_scan_state *ic_scan;	/* scan state */
    221 	struct ieee80211_scan_methods *ic_scan_methods;	/* scan methods */
    222 	int			ic_lastdata;	/* time of last data frame */
    223 	int			ic_lastscan;	/* time last scan completed */
    224 
    225 	/* NB: this is the union of all vap stations/neighbors */
    226 	int			ic_max_keyix;	/* max h/w key index */
    227 	struct ieee80211_node_table ic_sta;	/* stations/neighbors */
    228 	struct ieee80211_ageq	ic_stageq;	/* frame staging queue */
    229 	uint32_t		ic_hash_key;	/* random key for mac hash */
    230 
    231 	/* XXX multi-bss: split out common/vap parts */
    232 	struct ieee80211_wme_state ic_wme;	/* WME/WMM state */
    233 
    234 	/* XXX multi-bss: can per-vap be done/make sense? */
    235 	enum ieee80211_protmode	ic_protmode;	/* 802.11g protection mode */
    236 	uint16_t		ic_nonerpsta;	/* # non-ERP stations */
    237 	uint16_t		ic_longslotsta;	/* # long slot time stations */
    238 	uint16_t		ic_sta_assoc;	/* stations associated */
    239 	uint16_t		ic_ht_sta_assoc;/* HT stations associated */
    240 	uint16_t		ic_ht40_sta_assoc;/* HT40 stations associated */
    241 	uint8_t			ic_curhtprotmode;/* HTINFO bss state */
    242 	enum ieee80211_protmode	ic_htprotmode;	/* HT protection mode */
    243 	int			ic_lastnonerp;	/* last time non-ERP sta noted*/
    244 	int			ic_lastnonht;	/* last time non-HT sta noted */
    245 	uint8_t			ic_rxstream;    /* # RX streams */
    246 	uint8_t			ic_txstream;    /* # TX streams */
    247 
    248 	/* VHT information */
    249 	uint32_t		ic_vhtcaps;	/* VHT capabilities */
    250 	uint32_t		ic_vhtextcaps;	/* VHT extended capabilities (TODO) */
    251 	struct ieee80211_vht_mcs_info	ic_vht_mcsinfo; /* Support TX/RX VHT MCS */
    252 	uint32_t		ic_flags_vht;	/* VHT state flags */
    253 	uint32_t		ic_vht_spare[3];
    254 
    255 	/* optional state for Atheros SuperG protocol extensions */
    256 	struct ieee80211_superg	*ic_superg;
    257 
    258 	/* radiotap handling */
    259 	struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
    260 	void			*ic_txchan;	/* channel state in ic_th */
    261 	struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
    262 	void			*ic_rxchan;	/* channel state in ic_rh */
    263 	int			ic_montaps;	/* active monitor mode taps */
    264 
    265 	/* virtual ap create/delete */
    266 	struct ieee80211vap*	(*ic_vap_create)(struct ieee80211com *,
    267 				    const char [IFNAMSIZ], int,
    268 				    enum ieee80211_opmode, int,
    269 				    const uint8_t [IEEE80211_ADDR_LEN],
    270 				    const uint8_t [IEEE80211_ADDR_LEN]);
    271 	void			(*ic_vap_delete)(struct ieee80211vap *);
    272 	/* device specific ioctls */
    273 	int			(*ic_ioctl)(struct ieee80211com *,
    274 				    u_long, void *);
    275 	/* start/stop device */
    276 	void			(*ic_parent)(struct ieee80211com *);
    277 	/* operating mode attachment */
    278 	ieee80211vap_attach	ic_vattach[IEEE80211_OPMODE_MAX];
    279 	/* return hardware/radio capabilities */
    280 	void			(*ic_getradiocaps)(struct ieee80211com *,
    281 				    int, int *, struct ieee80211_channel []);
    282 	/* check and/or prepare regdomain state change */
    283 	int			(*ic_setregdomain)(struct ieee80211com *,
    284 				    struct ieee80211_regdomain *,
    285 				    int, struct ieee80211_channel []);
    286 
    287 	int			(*ic_set_quiet)(struct ieee80211_node *,
    288 				    u_int8_t *quiet_elm);
    289 
    290 	/* regular transmit */
    291 	int			(*ic_transmit)(struct ieee80211com *,
    292 				    struct mbuf *);
    293 	/* send/recv 802.11 management frame */
    294 	int			(*ic_send_mgmt)(struct ieee80211_node *,
    295 				     int, int);
    296 	/* send raw 802.11 frame */
    297 	int			(*ic_raw_xmit)(struct ieee80211_node *,
    298 				    struct mbuf *,
    299 				    const struct ieee80211_bpf_params *);
    300 	/* update device state for 802.11 slot time change */
    301 	void			(*ic_updateslot)(struct ieee80211com *);
    302 	/* handle multicast state changes */
    303 	void			(*ic_update_mcast)(struct ieee80211com *);
    304 	/* handle promiscuous mode changes */
    305 	void			(*ic_update_promisc)(struct ieee80211com *);
    306 	/* new station association callback/notification */
    307 	void			(*ic_newassoc)(struct ieee80211_node *, int);
    308 	/* TDMA update notification */
    309 	void			(*ic_tdma_update)(struct ieee80211_node *,
    310 				    const struct ieee80211_tdma_param *, int);
    311 	/* node state management */
    312 	struct ieee80211_node*	(*ic_node_alloc)(struct ieee80211vap *,
    313 				    const uint8_t [IEEE80211_ADDR_LEN]);
    314 	void			(*ic_node_free)(struct ieee80211_node *);
    315 	void			(*ic_node_cleanup)(struct ieee80211_node *);
    316 	void			(*ic_node_age)(struct ieee80211_node *);
    317 	void			(*ic_node_drain)(struct ieee80211_node *);
    318 	int8_t			(*ic_node_getrssi)(const struct ieee80211_node*);
    319 	void			(*ic_node_getsignal)(const struct ieee80211_node*,
    320 				    int8_t *, int8_t *);
    321 	void			(*ic_node_getmimoinfo)(
    322 				    const struct ieee80211_node*,
    323 				    struct ieee80211_mimo_info *);
    324 	/* scanning support */
    325 	void			(*ic_scan_start)(struct ieee80211com *);
    326 	void			(*ic_scan_end)(struct ieee80211com *);
    327 	void			(*ic_set_channel)(struct ieee80211com *);
    328 	void			(*ic_scan_curchan)(struct ieee80211_scan_state *,
    329 				    unsigned long);
    330 	void			(*ic_scan_mindwell)(struct ieee80211_scan_state *);
    331 
    332 	/*
    333 	 * 802.11n ADDBA support.  A simple/generic implementation
    334 	 * of A-MPDU tx aggregation is provided; the driver may
    335 	 * override these methods to provide their own support.
    336 	 * A-MPDU rx re-ordering happens automatically if the
    337 	 * driver passes out-of-order frames to ieee80211_input
    338 	 * from an assocated HT station.
    339 	 */
    340 	int			(*ic_recv_action)(struct ieee80211_node *,
    341 				    const struct ieee80211_frame *,
    342 				    const uint8_t *frm, const uint8_t *efrm);
    343 	int			(*ic_send_action)(struct ieee80211_node *,
    344 				    int category, int action, void *);
    345 	/* check if A-MPDU should be enabled this station+ac */
    346 	int			(*ic_ampdu_enable)(struct ieee80211_node *,
    347 				    struct ieee80211_tx_ampdu *);
    348 	/* start/stop doing A-MPDU tx aggregation for a station */
    349 	int			(*ic_addba_request)(struct ieee80211_node *,
    350 				    struct ieee80211_tx_ampdu *,
    351 				    int dialogtoken, int baparamset,
    352 				    int batimeout);
    353 	int			(*ic_addba_response)(struct ieee80211_node *,
    354 				    struct ieee80211_tx_ampdu *,
    355 				    int status, int baparamset, int batimeout);
    356 	void			(*ic_addba_stop)(struct ieee80211_node *,
    357 				    struct ieee80211_tx_ampdu *);
    358 	void			(*ic_addba_response_timeout)(struct ieee80211_node *,
    359 				    struct ieee80211_tx_ampdu *);
    360 	/* BAR response received */
    361 	void			(*ic_bar_response)(struct ieee80211_node *,
    362 				    struct ieee80211_tx_ampdu *, int status);
    363 	/* start/stop doing A-MPDU rx processing for a station */
    364 	int			(*ic_ampdu_rx_start)(struct ieee80211_node *,
    365 				    struct ieee80211_rx_ampdu *, int baparamset,
    366 				    int batimeout, int baseqctl);
    367 	void			(*ic_ampdu_rx_stop)(struct ieee80211_node *,
    368 				    struct ieee80211_rx_ampdu *);
    369 
    370 	/* The channel width has changed (20<->2040) */
    371 	void			(*ic_update_chw)(struct ieee80211com *);
    372 
    373 	uint64_t		ic_spare[7];
    374 };
    375 
    376 struct ieee80211_aclator;
    377 struct ieee80211_tdma_state;
    378 struct ieee80211_mesh_state;
    379 struct ieee80211_hwmp_state;
    380 
    381 struct ieee80211vap {
    382 	struct ifmedia		iv_media;	/* interface media config */
    383 	struct ifnet		*iv_ifp;	/* associated device */
    384 	struct bpf_if		*iv_rawbpf;	/* packet filter structure */
    385 	struct sysctl_ctx_list	*iv_sysctl;	/* dynamic sysctl context */
    386 	struct sysctl_oid	*iv_oid;	/* net.wlan.X sysctl oid */
    387 
    388 	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
    389 	struct ieee80211com	*iv_ic;		/* back ptr to common state */
    390 	/* MAC address: ifp or ic */
    391 	uint8_t			iv_myaddr[IEEE80211_ADDR_LEN];
    392 	uint32_t		iv_debug;	/* debug msg flags */
    393 	struct ieee80211_stats	iv_stats;	/* statistics */
    394 
    395 	uint32_t		iv_flags;	/* state flags */
    396 	uint32_t		iv_flags_ext;	/* extended state flags */
    397 	uint32_t		iv_flags_ht;	/* HT state flags */
    398 	uint32_t		iv_flags_ven;	/* vendor state flags */
    399 	uint32_t		iv_ifflags;	/* ifnet flags */
    400 	uint32_t		iv_caps;	/* capabilities */
    401 	uint32_t		iv_htcaps;	/* HT capabilities */
    402 	uint32_t		iv_htextcaps;	/* HT extended capabilities */
    403 	enum ieee80211_opmode	iv_opmode;	/* operation mode */
    404 	enum ieee80211_state	iv_state;	/* state machine state */
    405 	enum ieee80211_state	iv_nstate;	/* pending state */
    406 	int			iv_nstate_arg;	/* pending state arg */
    407 	struct task		iv_nstate_task;	/* deferred state processing */
    408 	struct task		iv_swbmiss_task;/* deferred iv_bmiss call */
    409 	struct callout		iv_mgtsend;	/* mgmt frame response timer */
    410 						/* inactivity timer settings */
    411 	int			iv_inact_init;	/* setting for new station */
    412 	int			iv_inact_auth;	/* auth but not assoc setting */
    413 	int			iv_inact_run;	/* authorized setting */
    414 	int			iv_inact_probe;	/* inactive probe time */
    415 
    416 	/* VHT flags */
    417 	uint32_t		iv_flags_vht;	/* VHT state flags */
    418 	uint32_t		iv_vhtcaps;	/* VHT capabilities */
    419 	uint32_t		iv_vhtextcaps;	/* VHT extended capabilities (TODO) */
    420 	struct ieee80211_vht_mcs_info	iv_vht_mcsinfo;
    421 	uint32_t		iv_vht_spare[4];
    422 
    423 	int			iv_des_nssid;	/* # desired ssids */
    424 	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
    425 	uint8_t			iv_des_bssid[IEEE80211_ADDR_LEN];
    426 	struct ieee80211_channel *iv_des_chan;	/* desired channel */
    427 	uint16_t		iv_des_mode;	/* desired mode */
    428 	int			iv_nicknamelen;	/* XXX junk */
    429 	uint8_t			iv_nickname[IEEE80211_NWID_LEN];
    430 	u_int			iv_bgscanidle;	/* bg scan idle threshold */
    431 	u_int			iv_bgscanintvl;	/* bg scan min interval */
    432 	u_int			iv_scanvalid;	/* scan cache valid threshold */
    433 	u_int			iv_scanreq_duration;
    434 	u_int			iv_scanreq_mindwell;
    435 	u_int			iv_scanreq_maxdwell;
    436 	uint16_t		iv_scanreq_flags;/* held scan request params */
    437 	uint8_t			iv_scanreq_nssid;
    438 	struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
    439 	/* sta-mode roaming state */
    440 	enum ieee80211_roamingmode iv_roaming;	/* roaming mode */
    441 	struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
    442 
    443 	uint8_t			iv_bmissthreshold;
    444 	uint8_t			iv_bmiss_count;	/* current beacon miss count */
    445 	int			iv_bmiss_max;	/* max bmiss before scan */
    446 	uint16_t		iv_swbmiss_count;/* beacons in last period */
    447 	uint16_t		iv_swbmiss_period;/* s/w bmiss period */
    448 	struct callout		iv_swbmiss;	/* s/w beacon miss timer */
    449 
    450 	int			iv_ampdu_rxmax;	/* A-MPDU rx limit (bytes) */
    451 	int			iv_ampdu_density;/* A-MPDU density */
    452 	int			iv_ampdu_limit;	/* A-MPDU tx limit (bytes) */
    453 	int			iv_amsdu_limit;	/* A-MSDU tx limit (bytes) */
    454 	u_int			iv_ampdu_mintraffic[WME_NUM_AC];
    455 
    456 	struct ieee80211_beacon_offsets iv_bcn_off;
    457 	uint32_t		*iv_aid_bitmap;	/* association id map */
    458 	uint16_t		iv_max_aid;
    459 	uint16_t		iv_sta_assoc;	/* stations associated */
    460 	uint16_t		iv_ps_sta;	/* stations in power save */
    461 	uint16_t		iv_ps_pending;	/* ps sta's w/ pending frames */
    462 	uint16_t		iv_txseq;	/* mcast xmit seq# space */
    463 	uint16_t		iv_tim_len;	/* ic_tim_bitmap size (bytes) */
    464 	uint8_t			*iv_tim_bitmap;	/* power-save stations w/ data*/
    465 	uint8_t			iv_dtim_period;	/* DTIM period */
    466 	uint8_t			iv_dtim_count;	/* DTIM count from last bcn */
    467 						/* set/unset aid pwrsav state */
    468 	uint8_t			iv_quiet;	/* Quiet Element */
    469 	uint8_t			iv_quiet_count;	/* constant count for Quiet Element */
    470 	uint8_t			iv_quiet_count_value;	/* variable count for Quiet Element */
    471 	uint8_t			iv_quiet_period;	/* period for Quiet Element */
    472 	uint16_t		iv_quiet_duration;	/* duration for Quiet Element */
    473 	uint16_t		iv_quiet_offset;	/* offset for Quiet Element */
    474 	int			iv_csa_count;	/* count for doing CSA */
    475 
    476 	struct ieee80211_node	*iv_bss;	/* information for this node */
    477 	struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
    478 	uint16_t		iv_rtsthreshold;
    479 	uint16_t		iv_fragthreshold;
    480 	int			iv_inact_timer;	/* inactivity timer wait */
    481 	/* application-specified IE's to attach to mgt frames */
    482 	struct ieee80211_appie	*iv_appie_beacon;
    483 	struct ieee80211_appie	*iv_appie_probereq;
    484 	struct ieee80211_appie	*iv_appie_proberesp;
    485 	struct ieee80211_appie	*iv_appie_assocreq;
    486 	struct ieee80211_appie	*iv_appie_assocresp;
    487 	struct ieee80211_appie	*iv_appie_wpa;
    488 	uint8_t			*iv_wpa_ie;
    489 	uint8_t			*iv_rsn_ie;
    490 
    491 	/* Key management */
    492 	uint16_t		iv_max_keyix;	/* max h/w key index */
    493 	ieee80211_keyix		iv_def_txkey;	/* default/group tx key index */
    494 	struct ieee80211_key	iv_nw_keys[IEEE80211_WEP_NKID];
    495 	int			(*iv_key_alloc)(struct ieee80211vap *,
    496 				    struct ieee80211_key *,
    497 				    ieee80211_keyix *, ieee80211_keyix *);
    498 	int			(*iv_key_delete)(struct ieee80211vap *,
    499 				    const struct ieee80211_key *);
    500 	int			(*iv_key_set)(struct ieee80211vap *,
    501 				    const struct ieee80211_key *);
    502 	void			(*iv_key_update_begin)(struct ieee80211vap *);
    503 	void			(*iv_key_update_end)(struct ieee80211vap *);
    504 	void			(*iv_update_deftxkey)(struct ieee80211vap *,
    505 				    ieee80211_keyix deftxkey);
    506 
    507 	const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
    508 	void			*iv_ec;		/* private auth state */
    509 
    510 	const struct ieee80211_aclator *iv_acl;	/* acl glue */
    511 	void			*iv_as;		/* private aclator state */
    512 
    513 	const struct ieee80211_ratectl *iv_rate;
    514 	void			*iv_rs;		/* private ratectl state */
    515 
    516 	struct ieee80211_tdma_state *iv_tdma;	/* tdma state */
    517 	struct ieee80211_mesh_state *iv_mesh;	/* MBSS state */
    518 	struct ieee80211_hwmp_state *iv_hwmp;	/* HWMP state */
    519 
    520 	/* operate-mode detach hook */
    521 	void			(*iv_opdetach)(struct ieee80211vap *);
    522 	/* receive processing */
    523 	int			(*iv_input)(struct ieee80211_node *,
    524 				    struct mbuf *,
    525 				    const struct ieee80211_rx_stats *,
    526 				    int, int);
    527 	void			(*iv_recv_mgmt)(struct ieee80211_node *,
    528 				    struct mbuf *, int,
    529 				    const struct ieee80211_rx_stats *,
    530 				    int, int);
    531 	void			(*iv_recv_ctl)(struct ieee80211_node *,
    532 				    struct mbuf *, int);
    533 	void			(*iv_deliver_data)(struct ieee80211vap *,
    534 				    struct ieee80211_node *, struct mbuf *);
    535 #if 0
    536 	/* send processing */
    537 	int			(*iv_send_mgmt)(struct ieee80211_node *,
    538 				     int, int);
    539 #endif
    540 	/* beacon miss processing */
    541 	void			(*iv_bmiss)(struct ieee80211vap *);
    542 	/* reset device state after 802.11 parameter/state change */
    543 	int			(*iv_reset)(struct ieee80211vap *, u_long);
    544 	/* [schedule] beacon frame update */
    545 	void			(*iv_update_beacon)(struct ieee80211vap *, int);
    546 	/* power save handling */
    547 	void			(*iv_update_ps)(struct ieee80211vap *, int);
    548 	int			(*iv_set_tim)(struct ieee80211_node *, int);
    549 	void			(*iv_node_ps)(struct ieee80211_node *, int);
    550 	void			(*iv_sta_ps)(struct ieee80211vap *, int);
    551 	void			(*iv_recv_pspoll)(struct ieee80211_node *,
    552 				    struct mbuf *);
    553 
    554 	/* state machine processing */
    555 	int			(*iv_newstate)(struct ieee80211vap *,
    556 				    enum ieee80211_state, int);
    557 	/* 802.3 output method for raw frame xmit */
    558 	int			(*iv_output)(struct ifnet *, struct mbuf *,
    559 				    const struct sockaddr *, struct route *);
    560 
    561 	int			(*iv_wme_update)(struct ieee80211vap *,
    562 				    const struct wmeParams *wme_params);
    563 	struct task		iv_wme_task;	/* deferred VAP WME update */
    564 
    565 	uint64_t		iv_spare[6];
    566 };
    567 MALLOC_DECLARE(M_80211_VAP);
    568 
    569 #define	IEEE80211_ADDR_EQ(a1,a2)	(memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
    570 #define	IEEE80211_ADDR_COPY(dst,src)	memcpy(dst,src,IEEE80211_ADDR_LEN)
    571 
    572 /* ic_flags/iv_flags */
    573 #define	IEEE80211_F_TURBOP	0x00000001	/* CONF: ATH Turbo enabled*/
    574 #define	IEEE80211_F_COMP	0x00000002	/* CONF: ATH comp enabled */
    575 #define	IEEE80211_F_FF		0x00000004	/* CONF: ATH FF enabled */
    576 #define	IEEE80211_F_BURST	0x00000008	/* CONF: bursting enabled */
    577 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
    578 #define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
    579 #define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
    580 #define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
    581 /* 0x00000300 reserved */
    582 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
    583 #define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
    584 #define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
    585 #define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
    586 #define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
    587 #define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled (???)*/
    588 #define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
    589 /* 0x00030000 reserved */
    590 #define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
    591 #define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
    592 #define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
    593 #define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
    594 #define	IEEE80211_F_CSAPENDING	0x00400000	/* STATUS: chan switch pending*/
    595 #define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
    596 #define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
    597 #define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
    598 #define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
    599 #define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
    600 #define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
    601 #define	IEEE80211_F_NOBRIDGE	0x10000000	/* CONF: dis. internal bridge */
    602 #define	IEEE80211_F_PCF		0x20000000	/* CONF: PCF enabled */
    603 #define	IEEE80211_F_DOTH	0x40000000	/* CONF: 11h enabled */
    604 #define	IEEE80211_F_DWDS	0x80000000	/* CONF: Dynamic WDS enabled */
    605 
    606 #define	IEEE80211_F_BITS \
    607 	"\20\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN" \
    608 	"\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY" \
    609 	"\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
    610 	"\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
    611 	"\37DOTH\40DWDS"
    612 
    613 /* Atheros protocol-specific flags */
    614 #define	IEEE80211_F_ATHEROS \
    615 	(IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
    616 /* Check if an Atheros capability was negotiated for use */
    617 #define	IEEE80211_ATH_CAP(vap, ni, bit) \
    618 	((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
    619 
    620 /* ic_flags_ext/iv_flags_ext */
    621 #define	IEEE80211_FEXT_INACT	 0x00000002	/* CONF: sta inact handling */
    622 #define	IEEE80211_FEXT_SCANWAIT	 0x00000004	/* STATUS: awaiting scan */
    623 /* 0x00000006 reserved */
    624 #define	IEEE80211_FEXT_BGSCAN	 0x00000008	/* STATUS: complete bgscan */
    625 #define	IEEE80211_FEXT_WPS	 0x00000010	/* CONF: WPS enabled */
    626 #define	IEEE80211_FEXT_TSN 	 0x00000020	/* CONF: TSN enabled */
    627 #define	IEEE80211_FEXT_SCANREQ	 0x00000040	/* STATUS: scan req params */
    628 #define	IEEE80211_FEXT_RESUME	 0x00000080	/* STATUS: start on resume */
    629 #define	IEEE80211_FEXT_4ADDR	 0x00000100	/* CONF: apply 4-addr encap */
    630 #define	IEEE80211_FEXT_NONERP_PR 0x00000200	/* STATUS: non-ERP sta present*/
    631 #define	IEEE80211_FEXT_SWBMISS	 0x00000400	/* CONF: do bmiss in s/w */
    632 #define	IEEE80211_FEXT_DFS	 0x00000800	/* CONF: DFS enabled */
    633 #define	IEEE80211_FEXT_DOTD	 0x00001000	/* CONF: 11d enabled */
    634 #define	IEEE80211_FEXT_STATEWAIT 0x00002000	/* STATUS: awaiting state chg */
    635 #define	IEEE80211_FEXT_REINIT	 0x00004000	/* STATUS: INIT state first */
    636 #define	IEEE80211_FEXT_BPF	 0x00008000	/* STATUS: BPF tap present */
    637 /* NB: immutable: should be set only when creating a vap */
    638 #define	IEEE80211_FEXT_WDSLEGACY 0x00010000	/* CONF: legacy WDS operation */
    639 #define	IEEE80211_FEXT_PROBECHAN 0x00020000	/* CONF: probe passive channel*/
    640 #define	IEEE80211_FEXT_UNIQMAC	 0x00040000	/* CONF: user or computed mac */
    641 #define	IEEE80211_FEXT_SCAN_OFFLOAD	0x00080000	/* CONF: scan is fully offloaded */
    642 #define	IEEE80211_FEXT_SEQNO_OFFLOAD	0x00100000	/* CONF: driver does seqno insertion/allocation */
    643 #define	IEEE80211_FEXT_FRAG_OFFLOAD	0x00200000	/* CONF: hardware does 802.11 fragmentation + assignment */
    644 #define	IEEE80211_FEXT_VHT	0x00400000	/* CONF: VHT support */
    645 #define	IEEE80211_FEXT_QUIET_IE	0x00800000	/* STATUS: quiet IE in a beacon has been added */
    646 
    647 #define	IEEE80211_FEXT_BITS \
    648 	"\20\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
    649 	"\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
    650 	"\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC\24SCAN_OFFLOAD\25SEQNO_OFFLOAD" \
    651 	"\26VHT\27QUIET_IE"
    652 
    653 /* ic_flags_ht/iv_flags_ht */
    654 #define	IEEE80211_FHT_NONHT_PR	 0x00000001	/* STATUS: non-HT sta present */
    655 #define	IEEE80211_FHT_LDPC_TX	 0x00010000	/* CONF: LDPC tx enabled */
    656 #define	IEEE80211_FHT_LDPC_RX	 0x00020000	/* CONF: LDPC rx enabled */
    657 #define	IEEE80211_FHT_GF  	 0x00040000	/* CONF: Greenfield enabled */
    658 #define	IEEE80211_FHT_HT	 0x00080000	/* CONF: HT supported */
    659 #define	IEEE80211_FHT_AMPDU_TX	 0x00100000	/* CONF: A-MPDU tx supported */
    660 #define	IEEE80211_FHT_AMPDU_RX	 0x00200000	/* CONF: A-MPDU rx supported */
    661 #define	IEEE80211_FHT_AMSDU_TX	 0x00400000	/* CONF: A-MSDU tx supported */
    662 #define	IEEE80211_FHT_AMSDU_RX	 0x00800000	/* CONF: A-MSDU rx supported */
    663 #define	IEEE80211_FHT_USEHT40	 0x01000000	/* CONF: 20/40 use enabled */
    664 #define	IEEE80211_FHT_PUREN	 0x02000000	/* CONF: 11n w/o legacy sta's */
    665 #define	IEEE80211_FHT_SHORTGI20	 0x04000000	/* CONF: short GI in HT20 */
    666 #define	IEEE80211_FHT_SHORTGI40	 0x08000000	/* CONF: short GI in HT40 */
    667 #define	IEEE80211_FHT_HTCOMPAT 	 0x10000000	/* CONF: HT vendor OUI's */
    668 #define	IEEE80211_FHT_RIFS  	 0x20000000	/* CONF: RIFS enabled */
    669 #define	IEEE80211_FHT_STBC_TX 	 0x40000000	/* CONF: STBC tx enabled */
    670 #define	IEEE80211_FHT_STBC_RX 	 0x80000000	/* CONF: STBC rx enabled */
    671 
    672 #define	IEEE80211_FHT_BITS \
    673 	"\20\1NONHT_PR" \
    674 	"\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
    675 	"\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
    676 	"\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
    677 
    678 #define	IEEE80211_FVEN_BITS	"\20"
    679 
    680 #define	IEEE80211_FVHT_VHT	0x000000001	/* CONF: VHT supported */
    681 #define	IEEE80211_FVHT_USEVHT40	0x000000002	/* CONF: Use VHT40 */
    682 #define	IEEE80211_FVHT_USEVHT80	0x000000004	/* CONF: Use VHT80 */
    683 #define	IEEE80211_FVHT_USEVHT80P80	0x000000008	/* CONF: Use VHT 80+80 */
    684 #define	IEEE80211_FVHT_USEVHT160	0x000000010	/* CONF: Use VHT160 */
    685 #define	IEEE80211_VFHT_BITS \
    686 	"\20\1VHT\2VHT40\3VHT80\4VHT80P80\5VHT160"
    687 
    688 int	ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
    689 void	ieee80211_ifattach(struct ieee80211com *);
    690 void	ieee80211_ifdetach(struct ieee80211com *);
    691 int	ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
    692 		const char name[IFNAMSIZ], int unit,
    693 		enum ieee80211_opmode opmode, int flags,
    694 		const uint8_t bssid[IEEE80211_ADDR_LEN]);
    695 int	ieee80211_vap_attach(struct ieee80211vap *,
    696 		ifm_change_cb_t, ifm_stat_cb_t,
    697 		const uint8_t macaddr[IEEE80211_ADDR_LEN]);
    698 void	ieee80211_vap_detach(struct ieee80211vap *);
    699 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
    700 		const struct ieee80211_channel *);
    701 const struct ieee80211_htrateset *ieee80211_get_suphtrates(
    702 		struct ieee80211com *, const struct ieee80211_channel *);
    703 void	ieee80211_announce(struct ieee80211com *);
    704 void	ieee80211_announce_channels(struct ieee80211com *);
    705 void	ieee80211_drain(struct ieee80211com *);
    706 void	ieee80211_chan_init(struct ieee80211com *);
    707 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
    708 struct ieee80211com *ieee80211_find_com(const char *name);
    709 typedef void ieee80211_com_iter_func(void *, struct ieee80211com *);
    710 void	ieee80211_iterate_coms(ieee80211_com_iter_func *, void *);
    711 int	ieee80211_media_change(struct ifnet *);
    712 void	ieee80211_media_status(struct ifnet *, struct ifmediareq *);
    713 int	ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
    714 int	ieee80211_rate2media(struct ieee80211com *, int,
    715 		enum ieee80211_phymode);
    716 int	ieee80211_media2rate(int);
    717 int	ieee80211_mhz2ieee(u_int, u_int);
    718 int	ieee80211_chan2ieee(struct ieee80211com *,
    719 		const struct ieee80211_channel *);
    720 u_int	ieee80211_ieee2mhz(u_int, u_int);
    721 int	ieee80211_add_channel(struct ieee80211_channel[], int, int *,
    722 	    uint8_t, uint16_t, int8_t, uint32_t, const uint8_t[]);
    723 int	ieee80211_add_channel_ht40(struct ieee80211_channel[], int, int *,
    724 	    uint8_t, int8_t, uint32_t);
    725 uint32_t ieee80211_get_channel_center_freq(const struct ieee80211_channel *);
    726 uint32_t ieee80211_get_channel_center_freq1(const struct ieee80211_channel *);
    727 uint32_t ieee80211_get_channel_center_freq2(const struct ieee80211_channel *);
    728 int	ieee80211_add_channel_list_2ghz(struct ieee80211_channel[], int, int *,
    729 	    const uint8_t[], int, const uint8_t[], int);
    730 int	ieee80211_add_channel_list_5ghz(struct ieee80211_channel[], int, int *,
    731 	    const uint8_t[], int, const uint8_t[], int);
    732 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
    733 		int freq, int flags);
    734 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
    735 		int ieee, int flags);
    736 struct ieee80211_channel *ieee80211_lookup_channel_rxstatus(struct ieee80211vap *,
    737 		const struct ieee80211_rx_stats *);
    738 int	ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
    739 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
    740 uint32_t ieee80211_mac_hash(const struct ieee80211com *,
    741 		const uint8_t addr[IEEE80211_ADDR_LEN]);
    742 char	ieee80211_channel_type_char(const struct ieee80211_channel *c);
    743 
    744 #define	ieee80211_get_current_channel(_ic)	((_ic)->ic_curchan)
    745 #define	ieee80211_get_home_channel(_ic)		((_ic)->ic_bsschan)
    746 #define	ieee80211_get_vap_desired_channel(_iv)	((_iv)->iv_des_chan)
    747 
    748 void	ieee80211_radiotap_attach(struct ieee80211com *,
    749 	    struct ieee80211_radiotap_header *th, int tlen,
    750 		uint32_t tx_radiotap,
    751 	    struct ieee80211_radiotap_header *rh, int rlen,
    752 		uint32_t rx_radiotap);
    753 void	ieee80211_radiotap_attachv(struct ieee80211com *,
    754 	    struct ieee80211_radiotap_header *th,
    755 	    int tlen, int n_tx_v, uint32_t tx_radiotap,
    756 	    struct ieee80211_radiotap_header *rh,
    757 	    int rlen, int n_rx_v, uint32_t rx_radiotap);
    758 void	ieee80211_radiotap_detach(struct ieee80211com *);
    759 void	ieee80211_radiotap_vattach(struct ieee80211vap *);
    760 void	ieee80211_radiotap_vdetach(struct ieee80211vap *);
    761 void	ieee80211_radiotap_chan_change(struct ieee80211com *);
    762 void	ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
    763 void	ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
    764 void	ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
    765 
    766 static __inline int
    767 ieee80211_radiotap_active(const struct ieee80211com *ic)
    768 {
    769 	return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
    770 }
    771 
    772 static __inline int
    773 ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
    774 {
    775 	return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
    776 	    vap->iv_ic->ic_montaps != 0;
    777 }
    778 
    779 /*
    780  * Enqueue a task on the state thread.
    781  */
    782 static __inline void
    783 ieee80211_runtask(struct ieee80211com *ic, struct task *task)
    784 {
    785 	taskqueue_enqueue(ic->ic_tq, task);
    786 }
    787 
    788 /*
    789  * Wait for a queued task to complete.
    790  */
    791 static __inline void
    792 ieee80211_draintask(struct ieee80211com *ic, struct task *task)
    793 {
    794 	taskqueue_drain(ic->ic_tq, task);
    795 }
    796 
    797 /*
    798  * Key update synchronization methods.  XXX should not be visible.
    799  */
    800 static __inline void
    801 ieee80211_key_update_begin(struct ieee80211vap *vap)
    802 {
    803 	vap->iv_key_update_begin(vap);
    804 }
    805 static __inline void
    806 ieee80211_key_update_end(struct ieee80211vap *vap)
    807 {
    808 	vap->iv_key_update_end(vap);
    809 }
    810 
    811 /*
    812  * XXX these need to be here for IEEE80211_F_DATAPAD
    813  */
    814 
    815 /*
    816  * Return the space occupied by the 802.11 header and any
    817  * padding required by the driver.  This works for a
    818  * management or data frame.
    819  */
    820 static __inline int
    821 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
    822 {
    823 	int size = ieee80211_hdrsize(data);
    824 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
    825 		size = roundup(size, sizeof(uint32_t));
    826 	return size;
    827 }
    828 
    829 /*
    830  * Like ieee80211_hdrspace, but handles any type of frame.
    831  */
    832 static __inline int
    833 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
    834 {
    835 	int size = ieee80211_anyhdrsize(data);
    836 	if (ic->ic_flags & IEEE80211_F_DATAPAD)
    837 		size = roundup(size, sizeof(uint32_t));
    838 	return size;
    839 }
    840 
    841 /*
    842  * Notify a vap that beacon state has been updated.
    843  */
    844 static __inline void
    845 ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
    846 {
    847 	if (vap->iv_state == IEEE80211_S_RUN)
    848 		vap->iv_update_beacon(vap, what);
    849 }
    850 
    851 /*
    852  * Calculate HT channel promotion flags for a channel.
    853  * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
    854  */
    855 static __inline int
    856 ieee80211_htchanflags(const struct ieee80211_channel *c)
    857 {
    858 	return IEEE80211_IS_CHAN_HT40(c) ?
    859 	    IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
    860 	    IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
    861 }
    862 
    863 /*
    864  * Calculate VHT channel promotion flags for a channel.
    865  * XXX belongs in ieee80211_vht.h but needs IEEE80211_FVHT_*
    866  */
    867 static __inline int
    868 ieee80211_vhtchanflags(const struct ieee80211_channel *c)
    869 {
    870 
    871 	if (IEEE80211_IS_CHAN_VHT160(c))
    872 		return IEEE80211_FVHT_USEVHT160;
    873 	if (IEEE80211_IS_CHAN_VHT80_80(c))
    874 		return IEEE80211_FVHT_USEVHT80P80;
    875 	if (IEEE80211_IS_CHAN_VHT80(c))
    876 		return IEEE80211_FVHT_USEVHT80;
    877 	if (IEEE80211_IS_CHAN_VHT40(c))
    878 		return IEEE80211_FVHT_USEVHT40;
    879 	if (IEEE80211_IS_CHAN_VHT(c))
    880 		return IEEE80211_FVHT_VHT;
    881 	return (0);
    882 }
    883 
    884 /*
    885  * Fetch the current TX power (cap) for the given node.
    886  *
    887  * This includes the node and ic/vap TX power limit as needed,
    888  * but it doesn't take into account any per-rate limit.
    889  */
    890 static __inline uint16_t
    891 ieee80211_get_node_txpower(struct ieee80211_node *ni)
    892 {
    893 	struct ieee80211com *ic = ni->ni_ic;
    894 	uint16_t txpower;
    895 
    896 	txpower = ni->ni_txpower;
    897 	txpower = MIN(txpower, ic->ic_txpowlimit);
    898 	if (ic->ic_curchan != NULL) {
    899 		txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
    900 		txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
    901 	}
    902 
    903 	return (txpower);
    904 }
    905 
    906 /*
    907  * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
    908  *
    909  * The intent is that any problem in the net80211 layer can be
    910  * diagnosed by inspecting the statistics (dumped by the wlanstats
    911  * program) and/or the msgs generated by net80211.  Messages are
    912  * broken into functional classes and can be controlled with the
    913  * wlandebug program.  Certain of these msg groups are for facilities
    914  * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
    915  */
    916 #define	IEEE80211_MSG_11N	0x80000000	/* 11n mode debug */
    917 #define	IEEE80211_MSG_DEBUG	0x40000000	/* IFF_DEBUG equivalent */
    918 #define	IEEE80211_MSG_DUMPPKTS	0x20000000	/* IFF_LINK2 equivalant */
    919 #define	IEEE80211_MSG_CRYPTO	0x10000000	/* crypto work */
    920 #define	IEEE80211_MSG_INPUT	0x08000000	/* input handling */
    921 #define	IEEE80211_MSG_XRATE	0x04000000	/* rate set handling */
    922 #define	IEEE80211_MSG_ELEMID	0x02000000	/* element id parsing */
    923 #define	IEEE80211_MSG_NODE	0x01000000	/* node handling */
    924 #define	IEEE80211_MSG_ASSOC	0x00800000	/* association handling */
    925 #define	IEEE80211_MSG_AUTH	0x00400000	/* authentication handling */
    926 #define	IEEE80211_MSG_SCAN	0x00200000	/* scanning */
    927 #define	IEEE80211_MSG_OUTPUT	0x00100000	/* output handling */
    928 #define	IEEE80211_MSG_STATE	0x00080000	/* state machine */
    929 #define	IEEE80211_MSG_POWER	0x00040000	/* power save handling */
    930 #define	IEEE80211_MSG_HWMP	0x00020000	/* hybrid mesh protocol */
    931 #define	IEEE80211_MSG_DOT1XSM	0x00010000	/* 802.1x state machine */
    932 #define	IEEE80211_MSG_RADIUS	0x00008000	/* 802.1x radius client */
    933 #define	IEEE80211_MSG_RADDUMP	0x00004000	/* dump 802.1x radius packets */
    934 #define	IEEE80211_MSG_MESH	0x00002000	/* mesh networking */
    935 #define	IEEE80211_MSG_WPA	0x00001000	/* WPA/RSN protocol */
    936 #define	IEEE80211_MSG_ACL	0x00000800	/* ACL handling */
    937 #define	IEEE80211_MSG_WME	0x00000400	/* WME protocol */
    938 #define	IEEE80211_MSG_SUPERG	0x00000200	/* Atheros SuperG protocol */
    939 #define	IEEE80211_MSG_DOTH	0x00000100	/* 802.11h support */
    940 #define	IEEE80211_MSG_INACT	0x00000080	/* inactivity handling */
    941 #define	IEEE80211_MSG_ROAM	0x00000040	/* sta-mode roaming */
    942 #define	IEEE80211_MSG_RATECTL	0x00000020	/* tx rate control */
    943 #define	IEEE80211_MSG_ACTION	0x00000010	/* action frame handling */
    944 #define	IEEE80211_MSG_WDS	0x00000008	/* WDS handling */
    945 #define	IEEE80211_MSG_IOCTL	0x00000004	/* ioctl handling */
    946 #define	IEEE80211_MSG_TDMA	0x00000002	/* TDMA handling */
    947 
    948 #define	IEEE80211_MSG_ANY	0xffffffff	/* anything */
    949 
    950 #define	IEEE80211_MSG_BITS \
    951 	"\20\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
    952 	"\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
    953 	"\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
    954 	"\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
    955 
    956 #ifdef IEEE80211_DEBUG
    957 #define	ieee80211_msg(_vap, _m)	((_vap)->iv_debug & (_m))
    958 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {			\
    959 	if (ieee80211_msg(_vap, _m))					\
    960 		ieee80211_note(_vap, _fmt, __VA_ARGS__);		\
    961 } while (0)
    962 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {			\
    963 	if (ieee80211_msg(_vap, _m))					\
    964 		ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
    965 } while (0)
    966 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {		\
    967 	if (ieee80211_msg(_vap, _m))					\
    968 		ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);	\
    969 } while (0)
    970 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {		\
    971 	if (ieee80211_msg(_vap, _m))					\
    972 		ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);	\
    973 } while (0)
    974 void	ieee80211_note(const struct ieee80211vap *, const char *, ...);
    975 void	ieee80211_note_mac(const struct ieee80211vap *,
    976 		const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
    977 void	ieee80211_note_frame(const struct ieee80211vap *,
    978 		const struct ieee80211_frame *, const char *, ...);
    979 #define	ieee80211_msg_debug(_vap) \
    980 	((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
    981 #define	ieee80211_msg_dumppkts(_vap) \
    982 	((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
    983 #define	ieee80211_msg_input(_vap) \
    984 	((_vap)->iv_debug & IEEE80211_MSG_INPUT)
    985 #define	ieee80211_msg_radius(_vap) \
    986 	((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
    987 #define	ieee80211_msg_dumpradius(_vap) \
    988 	((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
    989 #define	ieee80211_msg_dumpradkeys(_vap) \
    990 	((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
    991 #define	ieee80211_msg_scan(_vap) \
    992 	((_vap)->iv_debug & IEEE80211_MSG_SCAN)
    993 #define	ieee80211_msg_assoc(_vap) \
    994 	((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
    995 
    996 /*
    997  * Emit a debug message about discarding a frame or information
    998  * element.  One format is for extracting the mac address from
    999  * the frame header; the other is for when a header is not
   1000  * available or otherwise appropriate.
   1001  */
   1002 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {		\
   1003 	if ((_vap)->iv_debug & (_m))					\
   1004 		ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
   1005 } while (0)
   1006 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {	\
   1007 	if ((_vap)->iv_debug & (_m))					\
   1008 		ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
   1009 } while (0)
   1010 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {	\
   1011 	if ((_vap)->iv_debug & (_m))					\
   1012 		ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
   1013 } while (0)
   1014 
   1015 void ieee80211_discard_frame(const struct ieee80211vap *,
   1016 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
   1017 void ieee80211_discard_ie(const struct ieee80211vap *,
   1018 	const struct ieee80211_frame *, const char *type, const char *fmt, ...);
   1019 void ieee80211_discard_mac(const struct ieee80211vap *,
   1020 	const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
   1021 	const char *fmt, ...);
   1022 #else
   1023 #define	IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
   1024 #define	IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
   1025 #define	IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
   1026 #define	IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
   1027 #define	ieee80211_msg_dumppkts(_vap)	0
   1028 #define	ieee80211_msg(_vap, _m)		0
   1029 
   1030 #define	IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
   1031 #define	IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
   1032 #define	IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
   1033 #endif
   1034 
   1035 #endif /* _NET80211_IEEE80211_VAR_H_ */
   1036