The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_var.h

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    1 /*-
    2  * Copyright (c) 2001 Atsushi Onoe
    3  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/10.0/sys/net80211/ieee80211_var.h 254076 2013-08-07 22:01:43Z adrian $
   27  */
   28 #ifndef _NET80211_IEEE80211_VAR_H_
   29 #define _NET80211_IEEE80211_VAR_H_
   30 
   31 /*
   32  * Definitions for IEEE 802.11 drivers.
   33  */
   34 /* NB: portability glue must go first */
   35 #if defined(__NetBSD__)
   36 #include <net80211/ieee80211_netbsd.h>
   37 #elif defined(__FreeBSD__)
   38 #include <net80211/ieee80211_freebsd.h>
   39 #elif defined(__linux__)
   40 #include <net80211/ieee80211_linux.h>
   41 #else
   42 #error  "No support for your operating system!"
   43 #endif
   44 
   45 #include <net80211/_ieee80211.h>
   46 #include <net80211/ieee80211.h>
   47 #include <net80211/ieee80211_ageq.h>
   48 #include <net80211/ieee80211_crypto.h>
   49 #include <net80211/ieee80211_dfs.h>
   50 #include <net80211/ieee80211_ioctl.h>           /* for ieee80211_stats */
   51 #include <net80211/ieee80211_phy.h>
   52 #include <net80211/ieee80211_power.h>
   53 #include <net80211/ieee80211_node.h>
   54 #include <net80211/ieee80211_proto.h>
   55 #include <net80211/ieee80211_radiotap.h>
   56 #include <net80211/ieee80211_scan.h>
   57 
   58 #define IEEE80211_TXPOWER_MAX   100     /* .5 dBm (XXX units?) */
   59 #define IEEE80211_TXPOWER_MIN   0       /* kill radio */
   60 
   61 #define IEEE80211_DTIM_DEFAULT  1       /* default DTIM period */
   62 #define IEEE80211_BINTVAL_DEFAULT 100   /* default beacon interval (TU's) */
   63 
   64 #define IEEE80211_BMISS_MAX     2       /* maximum consecutive bmiss allowed */
   65 #define IEEE80211_HWBMISS_DEFAULT 7     /* h/w bmiss threshold (beacons) */
   66 
   67 #define IEEE80211_BGSCAN_INTVAL_MIN     15      /* min bg scan intvl (secs) */
   68 #define IEEE80211_BGSCAN_INTVAL_DEFAULT (5*60)  /* default bg scan intvl */
   69 
   70 #define IEEE80211_BGSCAN_IDLE_MIN       100     /* min idle time (ms) */
   71 #define IEEE80211_BGSCAN_IDLE_DEFAULT   250     /* default idle time (ms) */
   72 
   73 #define IEEE80211_SCAN_VALID_MIN        10      /* min scan valid time (secs) */
   74 #define IEEE80211_SCAN_VALID_DEFAULT    60      /* default scan valid time */
   75 
   76 #define IEEE80211_PS_SLEEP      0x1     /* STA is in power saving mode */
   77 #define IEEE80211_PS_MAX_QUEUE  50      /* maximum saved packets */
   78 
   79 #define IEEE80211_FIXED_RATE_NONE       0xff
   80 #define IEEE80211_TXMAX_DEFAULT         6       /* default ucast max retries */
   81 
   82 #define IEEE80211_RTS_DEFAULT           IEEE80211_RTS_MAX
   83 #define IEEE80211_FRAG_DEFAULT          IEEE80211_FRAG_MAX
   84 
   85 #define IEEE80211_MS_TO_TU(x)   (((x) * 1000) / 1024)
   86 #define IEEE80211_TU_TO_MS(x)   (((x) * 1024) / 1000)
   87 #define IEEE80211_TU_TO_TICKS(x)(((x) * 1024 * hz) / (1000 * 1000))
   88 
   89 /*
   90  * 802.11 control state is split into a common portion that maps
   91  * 1-1 to a physical device and one or more "Virtual AP's" (VAP)
   92  * that are bound to an ieee80211com instance and share a single
   93  * underlying device.  Each VAP has a corresponding OS device
   94  * entity through which traffic flows and that applications use
   95  * for issuing ioctls, etc.
   96  */
   97 
   98 /*
   99  * Data common to one or more virtual AP's.  State shared by
  100  * the underlying device and the net80211 layer is exposed here;
  101  * e.g. device-specific callbacks.
  102  */
  103 struct ieee80211vap;
  104 typedef void (*ieee80211vap_attach)(struct ieee80211vap *);
  105 
  106 struct ieee80211_appie {
  107         uint16_t                ie_len;         /* size of ie_data */
  108         uint8_t                 ie_data[];      /* user-specified IE's */
  109 };
  110 
  111 struct ieee80211_tdma_param;
  112 struct ieee80211_rate_table;
  113 struct ieee80211_tx_ampdu;
  114 struct ieee80211_rx_ampdu;
  115 struct ieee80211_superg;
  116 struct ieee80211_frame;
  117 
  118 struct ieee80211com {
  119         struct ifnet            *ic_ifp;        /* associated device */
  120         ieee80211_com_lock_t    ic_comlock;     /* state update lock */
  121         ieee80211_tx_lock_t     ic_txlock;      /* ic/vap TX lock */
  122         TAILQ_HEAD(, ieee80211vap) ic_vaps;     /* list of vap instances */
  123         int                     ic_headroom;    /* driver tx headroom needs */
  124         enum ieee80211_phytype  ic_phytype;     /* XXX wrong for multi-mode */
  125         enum ieee80211_opmode   ic_opmode;      /* operation mode */
  126         struct ifmedia          ic_media;       /* interface media config */
  127         struct callout          ic_inact;       /* inactivity processing */
  128         struct taskqueue        *ic_tq;         /* deferred state thread */
  129         struct task             ic_parent_task; /* deferred parent processing */
  130         struct task             ic_promisc_task;/* deferred promisc update */
  131         struct task             ic_mcast_task;  /* deferred mcast update */
  132         struct task             ic_chan_task;   /* deferred channel change */
  133         struct task             ic_bmiss_task;  /* deferred beacon miss hndlr */
  134         struct task             ic_chw_task;    /* deferred HT CHW update */
  135 
  136         uint32_t                ic_flags;       /* state flags */
  137         uint32_t                ic_flags_ext;   /* extended state flags */
  138         uint32_t                ic_flags_ht;    /* HT state flags */
  139         uint32_t                ic_flags_ven;   /* vendor state flags */
  140         uint32_t                ic_caps;        /* capabilities */
  141         uint32_t                ic_htcaps;      /* HT capabilities */
  142         uint32_t                ic_htextcaps;   /* HT extended capabilities */
  143         uint32_t                ic_cryptocaps;  /* crypto capabilities */
  144         uint8_t                 ic_modecaps[2]; /* set of mode capabilities */
  145         uint8_t                 ic_promisc;     /* vap's needing promisc mode */
  146         uint8_t                 ic_allmulti;    /* vap's needing all multicast*/
  147         uint8_t                 ic_nrunning;    /* vap's marked running */
  148         uint8_t                 ic_curmode;     /* current mode */
  149         uint16_t                ic_bintval;     /* beacon interval */
  150         uint16_t                ic_lintval;     /* listen interval */
  151         uint16_t                ic_holdover;    /* PM hold over duration */
  152         uint16_t                ic_txpowlimit;  /* global tx power limit */
  153         struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
  154 
  155         /*
  156          * Channel state:
  157          *
  158          * ic_channels is the set of available channels for the device;
  159          *    it is setup by the driver
  160          * ic_nchans is the number of valid entries in ic_channels
  161          * ic_chan_avail is a bit vector of these channels used to check
  162          *    whether a channel is available w/o searching the channel table.
  163          * ic_chan_active is a (potentially) constrained subset of
  164          *    ic_chan_avail that reflects any mode setting or user-specified
  165          *    limit on the set of channels to use/scan
  166          * ic_curchan is the current channel the device is set to; it may
  167          *    be different from ic_bsschan when we are off-channel scanning
  168          *    or otherwise doing background work
  169          * ic_bsschan is the channel selected for operation; it may
  170          *    be undefined (IEEE80211_CHAN_ANYC)
  171          * ic_prevchan is a cached ``previous channel'' used to optimize
  172          *    lookups when switching back+forth between two channels
  173          *    (e.g. for dynamic turbo)
  174          */
  175         int                     ic_nchans;      /* # entries in ic_channels */
  176         struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX];
  177         uint8_t                 ic_chan_avail[IEEE80211_CHAN_BYTES];
  178         uint8_t                 ic_chan_active[IEEE80211_CHAN_BYTES];
  179         uint8_t                 ic_chan_scan[IEEE80211_CHAN_BYTES];
  180         struct ieee80211_channel *ic_curchan;   /* current channel */
  181         const struct ieee80211_rate_table *ic_rt; /* table for ic_curchan */
  182         struct ieee80211_channel *ic_bsschan;   /* bss channel */
  183         struct ieee80211_channel *ic_prevchan;  /* previous channel */
  184         struct ieee80211_regdomain ic_regdomain;/* regulatory data */
  185         struct ieee80211_appie  *ic_countryie;  /* calculated country ie */
  186         struct ieee80211_channel *ic_countryie_chan;
  187 
  188         /* 802.11h/DFS state */
  189         struct ieee80211_channel *ic_csa_newchan;/* channel for doing CSA */
  190         short                   ic_csa_mode;    /* mode for doing CSA */
  191         short                   ic_csa_count;   /* count for doing CSA */
  192         struct ieee80211_dfs_state ic_dfs;      /* DFS state */
  193 
  194         struct ieee80211_scan_state *ic_scan;   /* scan state */
  195         int                     ic_lastdata;    /* time of last data frame */
  196         int                     ic_lastscan;    /* time last scan completed */
  197 
  198         /* NB: this is the union of all vap stations/neighbors */
  199         int                     ic_max_keyix;   /* max h/w key index */
  200         struct ieee80211_node_table ic_sta;     /* stations/neighbors */
  201         struct ieee80211_ageq   ic_stageq;      /* frame staging queue */
  202         uint32_t                ic_hash_key;    /* random key for mac hash */
  203 
  204         /* XXX multi-bss: split out common/vap parts */
  205         struct ieee80211_wme_state ic_wme;      /* WME/WMM state */
  206 
  207         /* XXX multi-bss: can per-vap be done/make sense? */
  208         enum ieee80211_protmode ic_protmode;    /* 802.11g protection mode */
  209         uint16_t                ic_nonerpsta;   /* # non-ERP stations */
  210         uint16_t                ic_longslotsta; /* # long slot time stations */
  211         uint16_t                ic_sta_assoc;   /* stations associated */
  212         uint16_t                ic_ht_sta_assoc;/* HT stations associated */
  213         uint16_t                ic_ht40_sta_assoc;/* HT40 stations associated */
  214         uint8_t                 ic_curhtprotmode;/* HTINFO bss state */
  215         enum ieee80211_protmode ic_htprotmode;  /* HT protection mode */
  216         int                     ic_lastnonerp;  /* last time non-ERP sta noted*/
  217         int                     ic_lastnonht;   /* last time non-HT sta noted */
  218         uint8_t                 ic_rxstream;    /* # RX streams */
  219         uint8_t                 ic_txstream;    /* # TX streams */
  220 
  221         /* optional state for Atheros SuperG protocol extensions */
  222         struct ieee80211_superg *ic_superg;
  223 
  224         /* radiotap handling */
  225         struct ieee80211_radiotap_header *ic_th;/* tx radiotap headers */
  226         void                    *ic_txchan;     /* channel state in ic_th */
  227         struct ieee80211_radiotap_header *ic_rh;/* rx radiotap headers */
  228         void                    *ic_rxchan;     /* channel state in ic_rh */
  229         int                     ic_montaps;     /* active monitor mode taps */
  230 
  231         /* virtual ap create/delete */
  232         struct ieee80211vap*    (*ic_vap_create)(struct ieee80211com *,
  233                                     const char [IFNAMSIZ], int,
  234                                     enum ieee80211_opmode, int,
  235                                     const uint8_t [IEEE80211_ADDR_LEN],
  236                                     const uint8_t [IEEE80211_ADDR_LEN]);
  237         void                    (*ic_vap_delete)(struct ieee80211vap *);
  238         /* operating mode attachment */
  239         ieee80211vap_attach     ic_vattach[IEEE80211_OPMODE_MAX];
  240         /* return hardware/radio capabilities */
  241         void                    (*ic_getradiocaps)(struct ieee80211com *,
  242                                     int, int *, struct ieee80211_channel []);
  243         /* check and/or prepare regdomain state change */
  244         int                     (*ic_setregdomain)(struct ieee80211com *,
  245                                     struct ieee80211_regdomain *,
  246                                     int, struct ieee80211_channel []);
  247 
  248         int                     (*ic_set_quiet)(struct ieee80211_node *,
  249                                     u_int8_t *quiet_elm);
  250 
  251         /* send/recv 802.11 management frame */
  252         int                     (*ic_send_mgmt)(struct ieee80211_node *,
  253                                      int, int);
  254         /* send raw 802.11 frame */
  255         int                     (*ic_raw_xmit)(struct ieee80211_node *,
  256                                     struct mbuf *,
  257                                     const struct ieee80211_bpf_params *);
  258         /* update device state for 802.11 slot time change */
  259         void                    (*ic_updateslot)(struct ifnet *);
  260         /* handle multicast state changes */
  261         void                    (*ic_update_mcast)(struct ifnet *);
  262         /* handle promiscuous mode changes */
  263         void                    (*ic_update_promisc)(struct ifnet *);
  264         /* new station association callback/notification */
  265         void                    (*ic_newassoc)(struct ieee80211_node *, int);
  266         /* TDMA update notification */
  267         void                    (*ic_tdma_update)(struct ieee80211_node *,
  268                                     const struct ieee80211_tdma_param *, int);
  269         /* node state management */
  270         struct ieee80211_node*  (*ic_node_alloc)(struct ieee80211vap *,
  271                                     const uint8_t [IEEE80211_ADDR_LEN]);
  272         void                    (*ic_node_free)(struct ieee80211_node *);
  273         void                    (*ic_node_cleanup)(struct ieee80211_node *);
  274         void                    (*ic_node_age)(struct ieee80211_node *);
  275         void                    (*ic_node_drain)(struct ieee80211_node *);
  276         int8_t                  (*ic_node_getrssi)(const struct ieee80211_node*);
  277         void                    (*ic_node_getsignal)(const struct ieee80211_node*,
  278                                     int8_t *, int8_t *);
  279         void                    (*ic_node_getmimoinfo)(
  280                                     const struct ieee80211_node*,
  281                                     struct ieee80211_mimo_info *);
  282         /* scanning support */
  283         void                    (*ic_scan_start)(struct ieee80211com *);
  284         void                    (*ic_scan_end)(struct ieee80211com *);
  285         void                    (*ic_set_channel)(struct ieee80211com *);
  286         void                    (*ic_scan_curchan)(struct ieee80211_scan_state *,
  287                                     unsigned long);
  288         void                    (*ic_scan_mindwell)(struct ieee80211_scan_state *);
  289 
  290         /*
  291          * 802.11n ADDBA support.  A simple/generic implementation
  292          * of A-MPDU tx aggregation is provided; the driver may
  293          * override these methods to provide their own support.
  294          * A-MPDU rx re-ordering happens automatically if the
  295          * driver passes out-of-order frames to ieee80211_input
  296          * from an assocated HT station.
  297          */
  298         int                     (*ic_recv_action)(struct ieee80211_node *,
  299                                     const struct ieee80211_frame *,
  300                                     const uint8_t *frm, const uint8_t *efrm);
  301         int                     (*ic_send_action)(struct ieee80211_node *,
  302                                     int category, int action, void *);
  303         /* check if A-MPDU should be enabled this station+ac */
  304         int                     (*ic_ampdu_enable)(struct ieee80211_node *,
  305                                     struct ieee80211_tx_ampdu *);
  306         /* start/stop doing A-MPDU tx aggregation for a station */
  307         int                     (*ic_addba_request)(struct ieee80211_node *,
  308                                     struct ieee80211_tx_ampdu *,
  309                                     int dialogtoken, int baparamset,
  310                                     int batimeout);
  311         int                     (*ic_addba_response)(struct ieee80211_node *,
  312                                     struct ieee80211_tx_ampdu *,
  313                                     int status, int baparamset, int batimeout);
  314         void                    (*ic_addba_stop)(struct ieee80211_node *,
  315                                     struct ieee80211_tx_ampdu *);
  316         void                    (*ic_addba_response_timeout)(struct ieee80211_node *,
  317                                     struct ieee80211_tx_ampdu *);
  318         /* BAR response received */
  319         void                    (*ic_bar_response)(struct ieee80211_node *,
  320                                     struct ieee80211_tx_ampdu *, int status);
  321         /* start/stop doing A-MPDU rx processing for a station */
  322         int                     (*ic_ampdu_rx_start)(struct ieee80211_node *,
  323                                     struct ieee80211_rx_ampdu *, int baparamset,
  324                                     int batimeout, int baseqctl);
  325         void                    (*ic_ampdu_rx_stop)(struct ieee80211_node *,
  326                                     struct ieee80211_rx_ampdu *);
  327 
  328         /* The channel width has changed (20<->2040) */
  329         void                    (*ic_update_chw)(struct ieee80211com *);
  330 
  331         uint64_t                ic_spare[7];
  332 };
  333 
  334 struct ieee80211_aclator;
  335 struct ieee80211_tdma_state;
  336 struct ieee80211_mesh_state;
  337 struct ieee80211_hwmp_state;
  338 
  339 struct ieee80211vap {
  340         struct ifmedia          iv_media;       /* interface media config */
  341         struct ifnet            *iv_ifp;        /* associated device */
  342         struct bpf_if           *iv_rawbpf;     /* packet filter structure */
  343         struct sysctl_ctx_list  *iv_sysctl;     /* dynamic sysctl context */
  344         struct sysctl_oid       *iv_oid;        /* net.wlan.X sysctl oid */
  345 
  346         TAILQ_ENTRY(ieee80211vap) iv_next;      /* list of vap instances */
  347         struct ieee80211com     *iv_ic;         /* back ptr to common state */
  348         uint32_t                iv_debug;       /* debug msg flags */
  349         struct ieee80211_stats  iv_stats;       /* statistics */
  350 
  351         uint8_t                 iv_myaddr[IEEE80211_ADDR_LEN];
  352         uint32_t                iv_flags;       /* state flags */
  353         uint32_t                iv_flags_ext;   /* extended state flags */
  354         uint32_t                iv_flags_ht;    /* HT state flags */
  355         uint32_t                iv_flags_ven;   /* vendor state flags */
  356         uint32_t                iv_caps;        /* capabilities */
  357         uint32_t                iv_htcaps;      /* HT capabilities */
  358         uint32_t                iv_htextcaps;   /* HT extended capabilities */
  359         enum ieee80211_opmode   iv_opmode;      /* operation mode */
  360         enum ieee80211_state    iv_state;       /* state machine state */
  361         enum ieee80211_state    iv_nstate;      /* pending state */
  362         int                     iv_nstate_arg;  /* pending state arg */
  363         struct task             iv_nstate_task; /* deferred state processing */
  364         struct task             iv_swbmiss_task;/* deferred iv_bmiss call */
  365         struct callout          iv_mgtsend;     /* mgmt frame response timer */
  366                                                 /* inactivity timer settings */
  367         int                     iv_inact_init;  /* setting for new station */
  368         int                     iv_inact_auth;  /* auth but not assoc setting */
  369         int                     iv_inact_run;   /* authorized setting */
  370         int                     iv_inact_probe; /* inactive probe time */
  371 
  372         int                     iv_des_nssid;   /* # desired ssids */
  373         struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
  374         uint8_t                 iv_des_bssid[IEEE80211_ADDR_LEN];
  375         struct ieee80211_channel *iv_des_chan;  /* desired channel */
  376         uint16_t                iv_des_mode;    /* desired mode */
  377         int                     iv_nicknamelen; /* XXX junk */
  378         uint8_t                 iv_nickname[IEEE80211_NWID_LEN];
  379         u_int                   iv_bgscanidle;  /* bg scan idle threshold */
  380         u_int                   iv_bgscanintvl; /* bg scan min interval */
  381         u_int                   iv_scanvalid;   /* scan cache valid threshold */
  382         u_int                   iv_scanreq_duration;
  383         u_int                   iv_scanreq_mindwell;
  384         u_int                   iv_scanreq_maxdwell;
  385         uint16_t                iv_scanreq_flags;/* held scan request params */
  386         uint8_t                 iv_scanreq_nssid;
  387         struct ieee80211_scan_ssid iv_scanreq_ssid[IEEE80211_SCAN_MAX_SSID];
  388         /* sta-mode roaming state */
  389         enum ieee80211_roamingmode iv_roaming;  /* roaming mode */
  390         struct ieee80211_roamparam iv_roamparms[IEEE80211_MODE_MAX];
  391 
  392         uint8_t                 iv_bmissthreshold;
  393         uint8_t                 iv_bmiss_count; /* current beacon miss count */
  394         int                     iv_bmiss_max;   /* max bmiss before scan */
  395         uint16_t                iv_swbmiss_count;/* beacons in last period */
  396         uint16_t                iv_swbmiss_period;/* s/w bmiss period */
  397         struct callout          iv_swbmiss;     /* s/w beacon miss timer */
  398 
  399         int                     iv_ampdu_rxmax; /* A-MPDU rx limit (bytes) */
  400         int                     iv_ampdu_density;/* A-MPDU density */
  401         int                     iv_ampdu_limit; /* A-MPDU tx limit (bytes) */
  402         int                     iv_amsdu_limit; /* A-MSDU tx limit (bytes) */
  403         u_int                   iv_ampdu_mintraffic[WME_NUM_AC];
  404 
  405         uint32_t                *iv_aid_bitmap; /* association id map */
  406         uint16_t                iv_max_aid;
  407         uint16_t                iv_sta_assoc;   /* stations associated */
  408         uint16_t                iv_ps_sta;      /* stations in power save */
  409         uint16_t                iv_ps_pending;  /* ps sta's w/ pending frames */
  410         uint16_t                iv_txseq;       /* mcast xmit seq# space */
  411         uint16_t                iv_tim_len;     /* ic_tim_bitmap size (bytes) */
  412         uint8_t                 *iv_tim_bitmap; /* power-save stations w/ data*/
  413         uint8_t                 iv_dtim_period; /* DTIM period */
  414         uint8_t                 iv_dtim_count;  /* DTIM count from last bcn */
  415                                                 /* set/unset aid pwrsav state */
  416         uint8_t                 iv_quiet;       /* Quiet Element */
  417         uint8_t                 iv_quiet_count; /* constant count for Quiet Element */
  418         uint8_t                 iv_quiet_count_value;   /* variable count for Quiet Element */
  419         uint8_t                 iv_quiet_period;        /* period for Quiet Element */
  420         uint16_t                iv_quiet_duration;      /* duration for Quiet Element */
  421         uint16_t                iv_quiet_offset;        /* offset for Quiet Element */
  422         int                     iv_csa_count;   /* count for doing CSA */
  423 
  424         struct ieee80211_node   *iv_bss;        /* information for this node */
  425         struct ieee80211_txparam iv_txparms[IEEE80211_MODE_MAX];
  426         uint16_t                iv_rtsthreshold;
  427         uint16_t                iv_fragthreshold;
  428         int                     iv_inact_timer; /* inactivity timer wait */
  429         /* application-specified IE's to attach to mgt frames */
  430         struct ieee80211_appie  *iv_appie_beacon;
  431         struct ieee80211_appie  *iv_appie_probereq;
  432         struct ieee80211_appie  *iv_appie_proberesp;
  433         struct ieee80211_appie  *iv_appie_assocreq;
  434         struct ieee80211_appie  *iv_appie_assocresp;
  435         struct ieee80211_appie  *iv_appie_wpa;
  436         uint8_t                 *iv_wpa_ie;
  437         uint8_t                 *iv_rsn_ie;
  438         uint16_t                iv_max_keyix;   /* max h/w key index */
  439         ieee80211_keyix         iv_def_txkey;   /* default/group tx key index */
  440         struct ieee80211_key    iv_nw_keys[IEEE80211_WEP_NKID];
  441         int                     (*iv_key_alloc)(struct ieee80211vap *,
  442                                     struct ieee80211_key *,
  443                                     ieee80211_keyix *, ieee80211_keyix *);
  444         int                     (*iv_key_delete)(struct ieee80211vap *, 
  445                                     const struct ieee80211_key *);
  446         int                     (*iv_key_set)(struct ieee80211vap *,
  447                                     const struct ieee80211_key *,
  448                                     const uint8_t mac[IEEE80211_ADDR_LEN]);
  449         void                    (*iv_key_update_begin)(struct ieee80211vap *);
  450         void                    (*iv_key_update_end)(struct ieee80211vap *);
  451 
  452         const struct ieee80211_authenticator *iv_auth; /* authenticator glue */
  453         void                    *iv_ec;         /* private auth state */
  454 
  455         const struct ieee80211_aclator *iv_acl; /* acl glue */
  456         void                    *iv_as;         /* private aclator state */
  457 
  458         const struct ieee80211_ratectl *iv_rate;
  459         void                    *iv_rs;         /* private ratectl state */
  460 
  461         struct ieee80211_tdma_state *iv_tdma;   /* tdma state */
  462         struct ieee80211_mesh_state *iv_mesh;   /* MBSS state */
  463         struct ieee80211_hwmp_state *iv_hwmp;   /* HWMP state */
  464 
  465         /* operate-mode detach hook */
  466         void                    (*iv_opdetach)(struct ieee80211vap *);
  467         /* receive processing */
  468         int                     (*iv_input)(struct ieee80211_node *,
  469                                     struct mbuf *, int, int);
  470         void                    (*iv_recv_mgmt)(struct ieee80211_node *,
  471                                     struct mbuf *, int, int, int);
  472         void                    (*iv_recv_ctl)(struct ieee80211_node *,
  473                                     struct mbuf *, int);
  474         void                    (*iv_deliver_data)(struct ieee80211vap *,
  475                                     struct ieee80211_node *, struct mbuf *);
  476 #if 0
  477         /* send processing */
  478         int                     (*iv_send_mgmt)(struct ieee80211_node *,
  479                                      int, int);
  480 #endif
  481         /* beacon miss processing */
  482         void                    (*iv_bmiss)(struct ieee80211vap *);
  483         /* reset device state after 802.11 parameter/state change */
  484         int                     (*iv_reset)(struct ieee80211vap *, u_long);
  485         /* [schedule] beacon frame update */
  486         void                    (*iv_update_beacon)(struct ieee80211vap *, int);
  487         /* power save handling */
  488         void                    (*iv_update_ps)(struct ieee80211vap *, int);
  489         int                     (*iv_set_tim)(struct ieee80211_node *, int);
  490         void                    (*iv_node_ps)(struct ieee80211_node *, int);
  491         void                    (*iv_sta_ps)(struct ieee80211vap *, int);
  492         void                    (*iv_recv_pspoll)(struct ieee80211_node *,
  493                                     struct mbuf *);
  494 
  495         /* state machine processing */
  496         int                     (*iv_newstate)(struct ieee80211vap *,
  497                                     enum ieee80211_state, int);
  498         /* 802.3 output method for raw frame xmit */
  499 #if __FreeBSD_version >= 1000031
  500         int                     (*iv_output)(struct ifnet *, struct mbuf *,
  501                                     const struct sockaddr *, struct route *);
  502 #else
  503         int                     (*iv_output)(struct ifnet *, struct mbuf *,
  504                                     struct sockaddr *, struct route *);
  505 #endif
  506         uint64_t                iv_spare[6];
  507 };
  508 MALLOC_DECLARE(M_80211_VAP);
  509 
  510 #define IEEE80211_ADDR_EQ(a1,a2)        (memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
  511 #define IEEE80211_ADDR_COPY(dst,src)    memcpy(dst,src,IEEE80211_ADDR_LEN)
  512 
  513 /* ic_flags/iv_flags */
  514 #define IEEE80211_F_TURBOP      0x00000001      /* CONF: ATH Turbo enabled*/
  515 #define IEEE80211_F_COMP        0x00000002      /* CONF: ATH comp enabled */
  516 #define IEEE80211_F_FF          0x00000004      /* CONF: ATH FF enabled */
  517 #define IEEE80211_F_BURST       0x00000008      /* CONF: bursting enabled */
  518 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
  519 #define IEEE80211_F_PRIVACY     0x00000010      /* CONF: privacy enabled */
  520 #define IEEE80211_F_PUREG       0x00000020      /* CONF: 11g w/o 11b sta's */
  521 #define IEEE80211_F_SCAN        0x00000080      /* STATUS: scanning */
  522 #define IEEE80211_F_ASCAN       0x00000100      /* STATUS: active scan */
  523 #define IEEE80211_F_SIBSS       0x00000200      /* STATUS: start IBSS */
  524 /* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
  525 #define IEEE80211_F_SHSLOT      0x00000400      /* STATUS: use short slot time*/
  526 #define IEEE80211_F_PMGTON      0x00000800      /* CONF: Power mgmt enable */
  527 #define IEEE80211_F_DESBSSID    0x00001000      /* CONF: des_bssid is set */
  528 #define IEEE80211_F_WME         0x00002000      /* CONF: enable WME use */
  529 #define IEEE80211_F_BGSCAN      0x00004000      /* CONF: bg scan enabled (???)*/
  530 #define IEEE80211_F_SWRETRY     0x00008000      /* CONF: sw tx retry enabled */
  531 #define IEEE80211_F_TXPOW_FIXED 0x00010000      /* TX Power: fixed rate */
  532 #define IEEE80211_F_IBSSON      0x00020000      /* CONF: IBSS creation enable */
  533 #define IEEE80211_F_SHPREAMBLE  0x00040000      /* STATUS: use short preamble */
  534 #define IEEE80211_F_DATAPAD     0x00080000      /* CONF: do alignment pad */
  535 #define IEEE80211_F_USEPROT     0x00100000      /* STATUS: protection enabled */
  536 #define IEEE80211_F_USEBARKER   0x00200000      /* STATUS: use barker preamble*/
  537 #define IEEE80211_F_CSAPENDING  0x00400000      /* STATUS: chan switch pending*/
  538 #define IEEE80211_F_WPA1        0x00800000      /* CONF: WPA enabled */
  539 #define IEEE80211_F_WPA2        0x01000000      /* CONF: WPA2 enabled */
  540 #define IEEE80211_F_WPA         0x01800000      /* CONF: WPA/WPA2 enabled */
  541 #define IEEE80211_F_DROPUNENC   0x02000000      /* CONF: drop unencrypted */
  542 #define IEEE80211_F_COUNTERM    0x04000000      /* CONF: TKIP countermeasures */
  543 #define IEEE80211_F_HIDESSID    0x08000000      /* CONF: hide SSID in beacon */
  544 #define IEEE80211_F_NOBRIDGE    0x10000000      /* CONF: dis. internal bridge */
  545 #define IEEE80211_F_PCF         0x20000000      /* CONF: PCF enabled */
  546 #define IEEE80211_F_DOTH        0x40000000      /* CONF: 11h enabled */
  547 #define IEEE80211_F_DWDS        0x80000000      /* CONF: Dynamic WDS enabled */
  548 
  549 #define IEEE80211_F_BITS \
  550         "\2\1TURBOP\2COMP\3FF\4BURST\5PRIVACY\6PUREG\10SCAN\11ASCAN\12SIBSS" \
  551         "\13SHSLOT\14PMGTON\15DESBSSID\16WME\17BGSCAN\20SWRETRY\21TXPOW_FIXED" \
  552         "\22IBSSON\23SHPREAMBLE\24DATAPAD\25USEPROT\26USERBARKER\27CSAPENDING" \
  553         "\30WPA1\31WPA2\32DROPUNENC\33COUNTERM\34HIDESSID\35NOBRIDG\36PCF" \
  554         "\37DOTH\40DWDS"
  555 
  556 /* Atheros protocol-specific flags */
  557 #define IEEE80211_F_ATHEROS \
  558         (IEEE80211_F_FF | IEEE80211_F_COMP | IEEE80211_F_TURBOP)
  559 /* Check if an Atheros capability was negotiated for use */
  560 #define IEEE80211_ATH_CAP(vap, ni, bit) \
  561         ((vap)->iv_flags & (ni)->ni_ath_flags & (bit))
  562 
  563 /* ic_flags_ext/iv_flags_ext */
  564 #define IEEE80211_FEXT_INACT     0x00000002     /* CONF: sta inact handling */
  565 #define IEEE80211_FEXT_SCANWAIT  0x00000004     /* STATUS: awaiting scan */
  566 /* 0x00000006 reserved */
  567 #define IEEE80211_FEXT_BGSCAN    0x00000008     /* STATUS: complete bgscan */
  568 #define IEEE80211_FEXT_WPS       0x00000010     /* CONF: WPS enabled */
  569 #define IEEE80211_FEXT_TSN       0x00000020     /* CONF: TSN enabled */
  570 #define IEEE80211_FEXT_SCANREQ   0x00000040     /* STATUS: scan req params */
  571 #define IEEE80211_FEXT_RESUME    0x00000080     /* STATUS: start on resume */
  572 #define IEEE80211_FEXT_4ADDR     0x00000100     /* CONF: apply 4-addr encap */
  573 #define IEEE80211_FEXT_NONERP_PR 0x00000200     /* STATUS: non-ERP sta present*/
  574 #define IEEE80211_FEXT_SWBMISS   0x00000400     /* CONF: do bmiss in s/w */
  575 #define IEEE80211_FEXT_DFS       0x00000800     /* CONF: DFS enabled */
  576 #define IEEE80211_FEXT_DOTD      0x00001000     /* CONF: 11d enabled */
  577 #define IEEE80211_FEXT_STATEWAIT 0x00002000     /* STATUS: awaiting state chg */
  578 #define IEEE80211_FEXT_REINIT    0x00004000     /* STATUS: INIT state first */
  579 #define IEEE80211_FEXT_BPF       0x00008000     /* STATUS: BPF tap present */
  580 /* NB: immutable: should be set only when creating a vap */
  581 #define IEEE80211_FEXT_WDSLEGACY 0x00010000     /* CONF: legacy WDS operation */
  582 #define IEEE80211_FEXT_PROBECHAN 0x00020000     /* CONF: probe passive channel*/
  583 #define IEEE80211_FEXT_UNIQMAC   0x00040000     /* CONF: user or computed mac */
  584 
  585 #define IEEE80211_FEXT_BITS \
  586         "\2\2INACT\3SCANWAIT\4BGSCAN\5WPS\6TSN\7SCANREQ\10RESUME" \
  587         "\0114ADDR\12NONEPR_PR\13SWBMISS\14DFS\15DOTD\16STATEWAIT\17REINIT" \
  588         "\20BPF\21WDSLEGACY\22PROBECHAN\23UNIQMAC"
  589 
  590 /* ic_flags_ht/iv_flags_ht */
  591 #define IEEE80211_FHT_NONHT_PR   0x00000001     /* STATUS: non-HT sta present */
  592 #define IEEE80211_FHT_GF         0x00040000     /* CONF: Greenfield enabled */
  593 #define IEEE80211_FHT_HT         0x00080000     /* CONF: HT supported */
  594 #define IEEE80211_FHT_AMPDU_TX   0x00100000     /* CONF: A-MPDU tx supported */
  595 #define IEEE80211_FHT_AMPDU_RX   0x00200000     /* CONF: A-MPDU rx supported */
  596 #define IEEE80211_FHT_AMSDU_TX   0x00400000     /* CONF: A-MSDU tx supported */
  597 #define IEEE80211_FHT_AMSDU_RX   0x00800000     /* CONF: A-MSDU rx supported */
  598 #define IEEE80211_FHT_USEHT40    0x01000000     /* CONF: 20/40 use enabled */
  599 #define IEEE80211_FHT_PUREN      0x02000000     /* CONF: 11n w/o legacy sta's */
  600 #define IEEE80211_FHT_SHORTGI20  0x04000000     /* CONF: short GI in HT20 */
  601 #define IEEE80211_FHT_SHORTGI40  0x08000000     /* CONF: short GI in HT40 */
  602 #define IEEE80211_FHT_HTCOMPAT   0x10000000     /* CONF: HT vendor OUI's */
  603 #define IEEE80211_FHT_RIFS       0x20000000     /* CONF: RIFS enabled */
  604 #define IEEE80211_FHT_STBC_TX    0x40000000     /* CONF: STBC tx enabled */
  605 #define IEEE80211_FHT_STBC_RX    0x80000000     /* CONF: STBC rx enabled */
  606 
  607 #define IEEE80211_FHT_BITS \
  608         "\2\1NONHT_PR" \
  609         "\23GF\24HT\25AMPDU_TX\26AMPDU_TX" \
  610         "\27AMSDU_TX\30AMSDU_RX\31USEHT40\32PUREN\33SHORTGI20\34SHORTGI40" \
  611         "\35HTCOMPAT\36RIFS\37STBC_TX\40STBC_RX"
  612 
  613 #define IEEE80211_FVEN_BITS     "\2"
  614 
  615 /* ic_caps/iv_caps: device driver capabilities */
  616 /* 0x2e available */
  617 #define IEEE80211_C_STA         0x00000001      /* CAPABILITY: STA available */
  618 #define IEEE80211_C_8023ENCAP   0x00000002      /* CAPABILITY: 802.3 encap */
  619 #define IEEE80211_C_FF          0x00000040      /* CAPABILITY: ATH FF avail */
  620 #define IEEE80211_C_TURBOP      0x00000080      /* CAPABILITY: ATH Turbo avail*/
  621 #define IEEE80211_C_IBSS        0x00000100      /* CAPABILITY: IBSS available */
  622 #define IEEE80211_C_PMGT        0x00000200      /* CAPABILITY: Power mgmt */
  623 #define IEEE80211_C_HOSTAP      0x00000400      /* CAPABILITY: HOSTAP avail */
  624 #define IEEE80211_C_AHDEMO      0x00000800      /* CAPABILITY: Old Adhoc Demo */
  625 #define IEEE80211_C_SWRETRY     0x00001000      /* CAPABILITY: sw tx retry */
  626 #define IEEE80211_C_TXPMGT      0x00002000      /* CAPABILITY: tx power mgmt */
  627 #define IEEE80211_C_SHSLOT      0x00004000      /* CAPABILITY: short slottime */
  628 #define IEEE80211_C_SHPREAMBLE  0x00008000      /* CAPABILITY: short preamble */
  629 #define IEEE80211_C_MONITOR     0x00010000      /* CAPABILITY: monitor mode */
  630 #define IEEE80211_C_DFS         0x00020000      /* CAPABILITY: DFS/radar avail*/
  631 #define IEEE80211_C_MBSS        0x00040000      /* CAPABILITY: MBSS available */
  632 /* 0x7c0000 available */
  633 #define IEEE80211_C_WPA1        0x00800000      /* CAPABILITY: WPA1 avail */
  634 #define IEEE80211_C_WPA2        0x01000000      /* CAPABILITY: WPA2 avail */
  635 #define IEEE80211_C_WPA         0x01800000      /* CAPABILITY: WPA1+WPA2 avail*/
  636 #define IEEE80211_C_BURST       0x02000000      /* CAPABILITY: frame bursting */
  637 #define IEEE80211_C_WME         0x04000000      /* CAPABILITY: WME avail */
  638 #define IEEE80211_C_WDS         0x08000000      /* CAPABILITY: 4-addr support */
  639 /* 0x10000000 reserved */
  640 #define IEEE80211_C_BGSCAN      0x20000000      /* CAPABILITY: bg scanning */
  641 #define IEEE80211_C_TXFRAG      0x40000000      /* CAPABILITY: tx fragments */
  642 #define IEEE80211_C_TDMA        0x80000000      /* CAPABILITY: TDMA avail */
  643 /* XXX protection/barker? */
  644 
  645 #define IEEE80211_C_OPMODE \
  646         (IEEE80211_C_STA | IEEE80211_C_IBSS | IEEE80211_C_HOSTAP | \
  647          IEEE80211_C_AHDEMO | IEEE80211_C_MONITOR | IEEE80211_C_WDS | \
  648          IEEE80211_C_TDMA | IEEE80211_C_MBSS)
  649 
  650 #define IEEE80211_C_BITS \
  651         "\2\1STA\002803ENCAP\7FF\10TURBOP\11IBSS\12PMGT" \
  652         "\13HOSTAP\14AHDEMO\15SWRETRY\16TXPMGT\17SHSLOT\20SHPREAMBLE" \
  653         "\21MONITOR\22DFS\23MBSS\30WPA1\31WPA2\32BURST\33WME\34WDS\36BGSCAN" \
  654         "\37TXFRAG\40TDMA"
  655 
  656 /*
  657  * ic_htcaps/iv_htcaps: HT-specific device/driver capabilities
  658  *
  659  * NB: the low 16-bits are the 802.11 definitions, the upper
  660  *     16-bits are used to define s/w/driver capabilities.
  661  */
  662 #define IEEE80211_HTC_AMPDU     0x00010000      /* CAPABILITY: A-MPDU tx */
  663 #define IEEE80211_HTC_AMSDU     0x00020000      /* CAPABILITY: A-MSDU tx */
  664 /* NB: HT40 is implied by IEEE80211_HTCAP_CHWIDTH40 */
  665 #define IEEE80211_HTC_HT        0x00040000      /* CAPABILITY: HT operation */
  666 #define IEEE80211_HTC_SMPS      0x00080000      /* CAPABILITY: MIMO power save*/
  667 #define IEEE80211_HTC_RIFS      0x00100000      /* CAPABILITY: RIFS support */
  668 #define IEEE80211_HTC_RXUNEQUAL 0x00200000      /* CAPABILITY: RX unequal MCS */
  669 #define IEEE80211_HTC_RXMCS32   0x00400000      /* CAPABILITY: MCS32 support */
  670 #define IEEE80211_HTC_TXUNEQUAL 0x00800000      /* CAPABILITY: TX unequal MCS */
  671 #define IEEE80211_HTC_TXMCS32   0x01000000      /* CAPABILITY: MCS32 suport */
  672 
  673 #define IEEE80211_C_HTCAP_BITS \
  674         "\2\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
  675         "\21AMPDU\22AMSDU\23HT\24SMPS\25RIFS"
  676 
  677 void    ieee80211_ifattach(struct ieee80211com *,
  678                 const uint8_t macaddr[IEEE80211_ADDR_LEN]);
  679 void    ieee80211_ifdetach(struct ieee80211com *);
  680 int     ieee80211_vap_setup(struct ieee80211com *, struct ieee80211vap *,
  681                 const char name[IFNAMSIZ], int unit,
  682                 enum ieee80211_opmode opmode, int flags,
  683                 const uint8_t bssid[IEEE80211_ADDR_LEN],
  684                 const uint8_t macaddr[IEEE80211_ADDR_LEN]);
  685 int     ieee80211_vap_attach(struct ieee80211vap *,
  686                 ifm_change_cb_t, ifm_stat_cb_t);
  687 void    ieee80211_vap_detach(struct ieee80211vap *);
  688 const struct ieee80211_rateset *ieee80211_get_suprates(struct ieee80211com *ic,
  689                 const struct ieee80211_channel *);
  690 void    ieee80211_announce(struct ieee80211com *);
  691 void    ieee80211_announce_channels(struct ieee80211com *);
  692 void    ieee80211_drain(struct ieee80211com *);
  693 void    ieee80211_media_init(struct ieee80211com *);
  694 struct ieee80211com *ieee80211_find_vap(const uint8_t mac[IEEE80211_ADDR_LEN]);
  695 int     ieee80211_media_change(struct ifnet *);
  696 void    ieee80211_media_status(struct ifnet *, struct ifmediareq *);
  697 int     ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
  698 int     ieee80211_rate2media(struct ieee80211com *, int,
  699                 enum ieee80211_phymode);
  700 int     ieee80211_media2rate(int);
  701 int     ieee80211_mhz2ieee(u_int, u_int);
  702 int     ieee80211_chan2ieee(struct ieee80211com *,
  703                 const struct ieee80211_channel *);
  704 u_int   ieee80211_ieee2mhz(u_int, u_int);
  705 struct ieee80211_channel *ieee80211_find_channel(struct ieee80211com *,
  706                 int freq, int flags);
  707 struct ieee80211_channel *ieee80211_find_channel_byieee(struct ieee80211com *,
  708                 int ieee, int flags);
  709 int     ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
  710 enum ieee80211_phymode ieee80211_chan2mode(const struct ieee80211_channel *);
  711 uint32_t ieee80211_mac_hash(const struct ieee80211com *,
  712                 const uint8_t addr[IEEE80211_ADDR_LEN]);
  713 
  714 void    ieee80211_radiotap_attach(struct ieee80211com *,
  715             struct ieee80211_radiotap_header *th, int tlen,
  716                 uint32_t tx_radiotap,
  717             struct ieee80211_radiotap_header *rh, int rlen,
  718                 uint32_t rx_radiotap);
  719 void    ieee80211_radiotap_attachv(struct ieee80211com *,
  720             struct ieee80211_radiotap_header *th,
  721             int tlen, int n_tx_v, uint32_t tx_radiotap,
  722             struct ieee80211_radiotap_header *rh,
  723             int rlen, int n_rx_v, uint32_t rx_radiotap);
  724 void    ieee80211_radiotap_detach(struct ieee80211com *);
  725 void    ieee80211_radiotap_vattach(struct ieee80211vap *);
  726 void    ieee80211_radiotap_vdetach(struct ieee80211vap *);
  727 void    ieee80211_radiotap_chan_change(struct ieee80211com *);
  728 void    ieee80211_radiotap_tx(struct ieee80211vap *, struct mbuf *);
  729 void    ieee80211_radiotap_rx(struct ieee80211vap *, struct mbuf *);
  730 void    ieee80211_radiotap_rx_all(struct ieee80211com *, struct mbuf *);
  731 
  732 static __inline int
  733 ieee80211_radiotap_active(const struct ieee80211com *ic)
  734 {
  735         return (ic->ic_flags_ext & IEEE80211_FEXT_BPF) != 0;
  736 }
  737 
  738 static __inline int
  739 ieee80211_radiotap_active_vap(const struct ieee80211vap *vap)
  740 {
  741         return (vap->iv_flags_ext & IEEE80211_FEXT_BPF) ||
  742             vap->iv_ic->ic_montaps != 0;
  743 }
  744 
  745 /*
  746  * Enqueue a task on the state thread.
  747  */
  748 static __inline void
  749 ieee80211_runtask(struct ieee80211com *ic, struct task *task)
  750 {
  751         taskqueue_enqueue(ic->ic_tq, task);
  752 }
  753 
  754 /*
  755  * Wait for a queued task to complete.
  756  */
  757 static __inline void
  758 ieee80211_draintask(struct ieee80211com *ic, struct task *task)
  759 {
  760         taskqueue_drain(ic->ic_tq, task);
  761 }
  762 
  763 /* 
  764  * Key update synchronization methods.  XXX should not be visible.
  765  */
  766 static __inline void
  767 ieee80211_key_update_begin(struct ieee80211vap *vap)
  768 {
  769         vap->iv_key_update_begin(vap);
  770 }
  771 static __inline void
  772 ieee80211_key_update_end(struct ieee80211vap *vap)
  773 {
  774         vap->iv_key_update_end(vap);
  775 }
  776 
  777 /*
  778  * XXX these need to be here for IEEE80211_F_DATAPAD
  779  */
  780 
  781 /*
  782  * Return the space occupied by the 802.11 header and any
  783  * padding required by the driver.  This works for a
  784  * management or data frame.
  785  */
  786 static __inline int
  787 ieee80211_hdrspace(struct ieee80211com *ic, const void *data)
  788 {
  789         int size = ieee80211_hdrsize(data);
  790         if (ic->ic_flags & IEEE80211_F_DATAPAD)
  791                 size = roundup(size, sizeof(uint32_t));
  792         return size;
  793 }
  794 
  795 /*
  796  * Like ieee80211_hdrspace, but handles any type of frame.
  797  */
  798 static __inline int
  799 ieee80211_anyhdrspace(struct ieee80211com *ic, const void *data)
  800 {
  801         int size = ieee80211_anyhdrsize(data);
  802         if (ic->ic_flags & IEEE80211_F_DATAPAD)
  803                 size = roundup(size, sizeof(uint32_t));
  804         return size;
  805 }
  806 
  807 /*
  808  * Notify a vap that beacon state has been updated.
  809  */
  810 static __inline void
  811 ieee80211_beacon_notify(struct ieee80211vap *vap, int what)
  812 {
  813         if (vap->iv_state == IEEE80211_S_RUN)
  814                 vap->iv_update_beacon(vap, what);
  815 }
  816 
  817 /*
  818  * Calculate HT channel promotion flags for a channel.
  819  * XXX belongs in ieee80211_ht.h but needs IEEE80211_FHT_*
  820  */
  821 static __inline int
  822 ieee80211_htchanflags(const struct ieee80211_channel *c)
  823 {
  824         return IEEE80211_IS_CHAN_HT40(c) ?
  825             IEEE80211_FHT_HT | IEEE80211_FHT_USEHT40 :
  826             IEEE80211_IS_CHAN_HT(c) ?  IEEE80211_FHT_HT : 0;
  827 }
  828 
  829 /*
  830  * Fetch the current TX power (cap) for the given node.
  831  *
  832  * This includes the node and ic/vap TX power limit as needed,
  833  * but it doesn't take into account any per-rate limit.
  834  */
  835 static __inline uint16_t
  836 ieee80211_get_node_txpower(struct ieee80211_node *ni)
  837 {
  838         struct ieee80211com *ic = ni->ni_ic;
  839         uint16_t txpower;
  840 
  841         txpower = ni->ni_txpower;
  842         txpower = MIN(txpower, ic->ic_txpowlimit);
  843         if (ic->ic_curchan != NULL) {
  844                 txpower = MIN(txpower, 2 * ic->ic_curchan->ic_maxregpower);
  845                 txpower = MIN(txpower, ic->ic_curchan->ic_maxpower);
  846         }
  847 
  848         return (txpower);
  849 }
  850 
  851 /*
  852  * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
  853  *
  854  * The intent is that any problem in the net80211 layer can be
  855  * diagnosed by inspecting the statistics (dumped by the wlanstats
  856  * program) and/or the msgs generated by net80211.  Messages are
  857  * broken into functional classes and can be controlled with the
  858  * wlandebug program.  Certain of these msg groups are for facilities
  859  * that are no longer part of net80211 (e.g. IEEE80211_MSG_DOT1XSM).
  860  */
  861 #define IEEE80211_MSG_11N       0x80000000      /* 11n mode debug */
  862 #define IEEE80211_MSG_DEBUG     0x40000000      /* IFF_DEBUG equivalent */
  863 #define IEEE80211_MSG_DUMPPKTS  0x20000000      /* IFF_LINK2 equivalant */
  864 #define IEEE80211_MSG_CRYPTO    0x10000000      /* crypto work */
  865 #define IEEE80211_MSG_INPUT     0x08000000      /* input handling */
  866 #define IEEE80211_MSG_XRATE     0x04000000      /* rate set handling */
  867 #define IEEE80211_MSG_ELEMID    0x02000000      /* element id parsing */
  868 #define IEEE80211_MSG_NODE      0x01000000      /* node handling */
  869 #define IEEE80211_MSG_ASSOC     0x00800000      /* association handling */
  870 #define IEEE80211_MSG_AUTH      0x00400000      /* authentication handling */
  871 #define IEEE80211_MSG_SCAN      0x00200000      /* scanning */
  872 #define IEEE80211_MSG_OUTPUT    0x00100000      /* output handling */
  873 #define IEEE80211_MSG_STATE     0x00080000      /* state machine */
  874 #define IEEE80211_MSG_POWER     0x00040000      /* power save handling */
  875 #define IEEE80211_MSG_HWMP      0x00020000      /* hybrid mesh protocol */
  876 #define IEEE80211_MSG_DOT1XSM   0x00010000      /* 802.1x state machine */
  877 #define IEEE80211_MSG_RADIUS    0x00008000      /* 802.1x radius client */
  878 #define IEEE80211_MSG_RADDUMP   0x00004000      /* dump 802.1x radius packets */
  879 #define IEEE80211_MSG_MESH      0x00002000      /* mesh networking */
  880 #define IEEE80211_MSG_WPA       0x00001000      /* WPA/RSN protocol */
  881 #define IEEE80211_MSG_ACL       0x00000800      /* ACL handling */
  882 #define IEEE80211_MSG_WME       0x00000400      /* WME protocol */
  883 #define IEEE80211_MSG_SUPERG    0x00000200      /* Atheros SuperG protocol */
  884 #define IEEE80211_MSG_DOTH      0x00000100      /* 802.11h support */
  885 #define IEEE80211_MSG_INACT     0x00000080      /* inactivity handling */
  886 #define IEEE80211_MSG_ROAM      0x00000040      /* sta-mode roaming */
  887 #define IEEE80211_MSG_RATECTL   0x00000020      /* tx rate control */
  888 #define IEEE80211_MSG_ACTION    0x00000010      /* action frame handling */
  889 #define IEEE80211_MSG_WDS       0x00000008      /* WDS handling */
  890 #define IEEE80211_MSG_IOCTL     0x00000004      /* ioctl handling */
  891 #define IEEE80211_MSG_TDMA      0x00000002      /* TDMA handling */
  892 
  893 #define IEEE80211_MSG_ANY       0xffffffff      /* anything */
  894 
  895 #define IEEE80211_MSG_BITS \
  896         "\2\2TDMA\3IOCTL\4WDS\5ACTION\6RATECTL\7ROAM\10INACT\11DOTH\12SUPERG" \
  897         "\13WME\14ACL\15WPA\16RADKEYS\17RADDUMP\20RADIUS\21DOT1XSM\22HWMP" \
  898         "\23POWER\24STATE\25OUTPUT\26SCAN\27AUTH\30ASSOC\31NODE\32ELEMID" \
  899         "\33XRATE\34INPUT\35CRYPTO\36DUPMPKTS\37DEBUG\04011N"
  900 
  901 #ifdef IEEE80211_DEBUG
  902 #define ieee80211_msg(_vap, _m) ((_vap)->iv_debug & (_m))
  903 #define IEEE80211_DPRINTF(_vap, _m, _fmt, ...) do {                     \
  904         if (ieee80211_msg(_vap, _m))                                    \
  905                 ieee80211_note(_vap, _fmt, __VA_ARGS__);                \
  906 } while (0)
  907 #define IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...) do {                   \
  908         if (ieee80211_msg(_vap, _m))                                    \
  909                 ieee80211_note_mac(_vap, (_ni)->ni_macaddr, _fmt, __VA_ARGS__);\
  910 } while (0)
  911 #define IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...) do {              \
  912         if (ieee80211_msg(_vap, _m))                                    \
  913                 ieee80211_note_mac(_vap, _mac, _fmt, __VA_ARGS__);      \
  914 } while (0)
  915 #define IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...) do {             \
  916         if (ieee80211_msg(_vap, _m))                                    \
  917                 ieee80211_note_frame(_vap, _wh, _fmt, __VA_ARGS__);     \
  918 } while (0)
  919 void    ieee80211_note(const struct ieee80211vap *, const char *, ...);
  920 void    ieee80211_note_mac(const struct ieee80211vap *,
  921                 const uint8_t mac[IEEE80211_ADDR_LEN], const char *, ...);
  922 void    ieee80211_note_frame(const struct ieee80211vap *,
  923                 const struct ieee80211_frame *, const char *, ...);
  924 #define ieee80211_msg_debug(_vap) \
  925         ((_vap)->iv_debug & IEEE80211_MSG_DEBUG)
  926 #define ieee80211_msg_dumppkts(_vap) \
  927         ((_vap)->iv_debug & IEEE80211_MSG_DUMPPKTS)
  928 #define ieee80211_msg_input(_vap) \
  929         ((_vap)->iv_debug & IEEE80211_MSG_INPUT)
  930 #define ieee80211_msg_radius(_vap) \
  931         ((_vap)->iv_debug & IEEE80211_MSG_RADIUS)
  932 #define ieee80211_msg_dumpradius(_vap) \
  933         ((_vap)->iv_debug & IEEE80211_MSG_RADDUMP)
  934 #define ieee80211_msg_dumpradkeys(_vap) \
  935         ((_vap)->iv_debug & IEEE80211_MSG_RADKEYS)
  936 #define ieee80211_msg_scan(_vap) \
  937         ((_vap)->iv_debug & IEEE80211_MSG_SCAN)
  938 #define ieee80211_msg_assoc(_vap) \
  939         ((_vap)->iv_debug & IEEE80211_MSG_ASSOC)
  940 
  941 /*
  942  * Emit a debug message about discarding a frame or information
  943  * element.  One format is for extracting the mac address from
  944  * the frame header; the other is for when a header is not
  945  * available or otherwise appropriate.
  946  */
  947 #define IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...) do {         \
  948         if ((_vap)->iv_debug & (_m))                                    \
  949                 ieee80211_discard_frame(_vap, _wh, _type, _fmt, __VA_ARGS__);\
  950 } while (0)
  951 #define IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...) do {      \
  952         if ((_vap)->iv_debug & (_m))                                    \
  953                 ieee80211_discard_ie(_vap, _wh, _type, _fmt, __VA_ARGS__);\
  954 } while (0)
  955 #define IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...) do {    \
  956         if ((_vap)->iv_debug & (_m))                                    \
  957                 ieee80211_discard_mac(_vap, _mac, _type, _fmt, __VA_ARGS__);\
  958 } while (0)
  959 
  960 void ieee80211_discard_frame(const struct ieee80211vap *,
  961         const struct ieee80211_frame *, const char *type, const char *fmt, ...);
  962 void ieee80211_discard_ie(const struct ieee80211vap *,
  963         const struct ieee80211_frame *, const char *type, const char *fmt, ...);
  964 void ieee80211_discard_mac(const struct ieee80211vap *,
  965         const uint8_t mac[IEEE80211_ADDR_LEN], const char *type,
  966         const char *fmt, ...);
  967 #else
  968 #define IEEE80211_DPRINTF(_vap, _m, _fmt, ...)
  969 #define IEEE80211_NOTE(_vap, _m, _ni, _fmt, ...)
  970 #define IEEE80211_NOTE_FRAME(_vap, _m, _wh, _fmt, ...)
  971 #define IEEE80211_NOTE_MAC(_vap, _m, _mac, _fmt, ...)
  972 #define ieee80211_msg_dumppkts(_vap)    0
  973 #define ieee80211_msg(_vap, _m)         0
  974 
  975 #define IEEE80211_DISCARD(_vap, _m, _wh, _type, _fmt, ...)
  976 #define IEEE80211_DISCARD_IE(_vap, _m, _wh, _type, _fmt, ...)
  977 #define IEEE80211_DISCARD_MAC(_vap, _m, _mac, _type, _fmt, ...)
  978 #endif
  979 
  980 #endif /* _NET80211_IEEE80211_VAR_H_ */

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