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


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

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

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    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: releng/12.0/sys/net80211/ieee80211_var.h 326272 2017-11-27 15:23:17Z pfg $
   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         "\2\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         "\2\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         "\2\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     "\2"
  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         "\2\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         "\2\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_ */

Cache object: 6bf4bacb6eb2299cedf63623aabf1e79


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.