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_proto.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/11.0/sys/net80211/ieee80211_proto.h 298995 2016-05-03 18:05:43Z pfg $
   27  */
   28 #ifndef _NET80211_IEEE80211_PROTO_H_
   29 #define _NET80211_IEEE80211_PROTO_H_
   30 
   31 /*
   32  * 802.11 protocol implementation definitions.
   33  */
   34 
   35 enum ieee80211_state {
   36         IEEE80211_S_INIT        = 0,    /* default state */
   37         IEEE80211_S_SCAN        = 1,    /* scanning */
   38         IEEE80211_S_AUTH        = 2,    /* try to authenticate */
   39         IEEE80211_S_ASSOC       = 3,    /* try to assoc */
   40         IEEE80211_S_CAC         = 4,    /* doing channel availability check */
   41         IEEE80211_S_RUN         = 5,    /* operational (e.g. associated) */
   42         IEEE80211_S_CSA         = 6,    /* channel switch announce pending */
   43         IEEE80211_S_SLEEP       = 7,    /* power save */
   44 };
   45 #define IEEE80211_S_MAX         (IEEE80211_S_SLEEP+1)
   46 
   47 #define IEEE80211_SEND_MGMT(_ni,_type,_arg) \
   48         ((*(_ni)->ni_ic->ic_send_mgmt)(_ni, _type, _arg))
   49 
   50 extern  const char *mgt_subtype_name[];
   51 extern  const char *ctl_subtype_name[];
   52 extern  const char *ieee80211_phymode_name[IEEE80211_MODE_MAX];
   53 extern  const int ieee80211_opcap[IEEE80211_OPMODE_MAX];
   54 
   55 static __inline const char *
   56 ieee80211_mgt_subtype_name(uint8_t subtype)
   57 {
   58         return mgt_subtype_name[(subtype & IEEE80211_FC0_SUBTYPE_MASK) >>
   59                    IEEE80211_FC0_SUBTYPE_SHIFT];
   60 }
   61 
   62 static __inline const char *
   63 ieee80211_ctl_subtype_name(uint8_t subtype)
   64 {
   65         return ctl_subtype_name[(subtype & IEEE80211_FC0_SUBTYPE_MASK) >>
   66                    IEEE80211_FC0_SUBTYPE_SHIFT];
   67 }
   68 
   69 const char *ieee80211_reason_to_string(uint16_t);
   70 
   71 void    ieee80211_proto_attach(struct ieee80211com *);
   72 void    ieee80211_proto_detach(struct ieee80211com *);
   73 void    ieee80211_proto_vattach(struct ieee80211vap *);
   74 void    ieee80211_proto_vdetach(struct ieee80211vap *);
   75 
   76 void    ieee80211_promisc(struct ieee80211vap *, bool);
   77 void    ieee80211_allmulti(struct ieee80211vap *, bool);
   78 void    ieee80211_syncflag(struct ieee80211vap *, int flag);
   79 void    ieee80211_syncflag_ht(struct ieee80211vap *, int flag);
   80 void    ieee80211_syncflag_ext(struct ieee80211vap *, int flag);
   81 
   82 #define ieee80211_input(ni, m, rssi, nf) \
   83         ((ni)->ni_vap->iv_input(ni, m, NULL, rssi, nf))
   84 int     ieee80211_input_all(struct ieee80211com *, struct mbuf *, int, int);
   85 
   86 int     ieee80211_input_mimo(struct ieee80211_node *, struct mbuf *,
   87             struct ieee80211_rx_stats *);
   88 int     ieee80211_input_mimo_all(struct ieee80211com *, struct mbuf *,
   89             struct ieee80211_rx_stats *);
   90 
   91 struct ieee80211_bpf_params;
   92 int     ieee80211_mgmt_output(struct ieee80211_node *, struct mbuf *, int,
   93                 struct ieee80211_bpf_params *);
   94 int     ieee80211_raw_xmit(struct ieee80211_node *, struct mbuf *,
   95                 const struct ieee80211_bpf_params *);
   96 int     ieee80211_output(struct ifnet *, struct mbuf *,
   97                const struct sockaddr *, struct route *ro);
   98 int     ieee80211_vap_pkt_send_dest(struct ieee80211vap *, struct mbuf *,
   99                 struct ieee80211_node *);
  100 int     ieee80211_raw_output(struct ieee80211vap *, struct ieee80211_node *,
  101                 struct mbuf *, const struct ieee80211_bpf_params *);
  102 void    ieee80211_send_setup(struct ieee80211_node *, struct mbuf *, int, int,
  103         const uint8_t [IEEE80211_ADDR_LEN], const uint8_t [IEEE80211_ADDR_LEN],
  104         const uint8_t [IEEE80211_ADDR_LEN]);
  105 int     ieee80211_vap_transmit(struct ifnet *ifp, struct mbuf *m);
  106 void    ieee80211_vap_qflush(struct ifnet *ifp);
  107 int     ieee80211_send_nulldata(struct ieee80211_node *);
  108 int     ieee80211_classify(struct ieee80211_node *, struct mbuf *m);
  109 struct mbuf *ieee80211_mbuf_adjust(struct ieee80211vap *, int,
  110                 struct ieee80211_key *, struct mbuf *);
  111 struct mbuf *ieee80211_encap(struct ieee80211vap *, struct ieee80211_node *,
  112                 struct mbuf *);
  113 void    ieee80211_free_mbuf(struct mbuf *);
  114 int     ieee80211_send_mgmt(struct ieee80211_node *, int, int);
  115 struct ieee80211_appie;
  116 int     ieee80211_send_probereq(struct ieee80211_node *ni,
  117                 const uint8_t sa[IEEE80211_ADDR_LEN],
  118                 const uint8_t da[IEEE80211_ADDR_LEN],
  119                 const uint8_t bssid[IEEE80211_ADDR_LEN],
  120                 const uint8_t *ssid, size_t ssidlen);
  121 struct mbuf *   ieee80211_ff_encap1(struct ieee80211vap *, struct mbuf *,
  122                 const struct ether_header *);
  123 void    ieee80211_tx_complete(struct ieee80211_node *,
  124                 struct mbuf *, int);
  125 
  126 /*
  127  * The formation of ProbeResponse frames requires guidance to
  128  * deal with legacy clients.  When the client is identified as
  129  * "legacy 11b" ieee80211_send_proberesp is passed this token.
  130  */
  131 #define IEEE80211_SEND_LEGACY_11B       0x1     /* legacy 11b client */
  132 #define IEEE80211_SEND_LEGACY_11        0x2     /* other legacy client */
  133 #define IEEE80211_SEND_LEGACY           0x3     /* any legacy client */
  134 struct mbuf *ieee80211_alloc_proberesp(struct ieee80211_node *, int);
  135 int     ieee80211_send_proberesp(struct ieee80211vap *,
  136                 const uint8_t da[IEEE80211_ADDR_LEN], int);
  137 struct mbuf *ieee80211_alloc_rts(struct ieee80211com *ic,
  138                 const uint8_t [IEEE80211_ADDR_LEN],
  139                 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
  140 struct mbuf *ieee80211_alloc_cts(struct ieee80211com *,
  141                 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
  142 
  143 uint8_t *ieee80211_add_rates(uint8_t *, const struct ieee80211_rateset *);
  144 uint8_t *ieee80211_add_xrates(uint8_t *, const struct ieee80211_rateset *);
  145 uint8_t *ieee80211_add_ssid(uint8_t *, const uint8_t *, u_int);
  146 uint8_t *ieee80211_add_wpa(uint8_t *, const struct ieee80211vap *);
  147 uint8_t *ieee80211_add_rsn(uint8_t *, const struct ieee80211vap *);
  148 uint8_t *ieee80211_add_qos(uint8_t *, const struct ieee80211_node *);
  149 uint16_t ieee80211_getcapinfo(struct ieee80211vap *,
  150                 struct ieee80211_channel *);
  151 struct ieee80211_wme_state;
  152 uint8_t * ieee80211_add_wme_info(uint8_t *frm, struct ieee80211_wme_state *wme);
  153 
  154 void    ieee80211_reset_erp(struct ieee80211com *);
  155 void    ieee80211_set_shortslottime(struct ieee80211com *, int onoff);
  156 int     ieee80211_iserp_rateset(const struct ieee80211_rateset *);
  157 void    ieee80211_setbasicrates(struct ieee80211_rateset *,
  158                 enum ieee80211_phymode);
  159 void    ieee80211_addbasicrates(struct ieee80211_rateset *,
  160                 enum ieee80211_phymode);
  161 
  162 /*
  163  * Return the size of the 802.11 header for a management or data frame.
  164  */
  165 static __inline int
  166 ieee80211_hdrsize(const void *data)
  167 {
  168         const struct ieee80211_frame *wh = data;
  169         int size = sizeof(struct ieee80211_frame);
  170 
  171         /* NB: we don't handle control frames */
  172         KASSERT((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_CTL,
  173                 ("%s: control frame", __func__));
  174         if (IEEE80211_IS_DSTODS(wh))
  175                 size += IEEE80211_ADDR_LEN;
  176         if (IEEE80211_QOS_HAS_SEQ(wh))
  177                 size += sizeof(uint16_t);
  178         return size;
  179 }
  180 
  181 /*
  182  * Like ieee80211_hdrsize, but handles any type of frame.
  183  */
  184 static __inline int
  185 ieee80211_anyhdrsize(const void *data)
  186 {
  187         const struct ieee80211_frame *wh = data;
  188 
  189         if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) {
  190                 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
  191                 case IEEE80211_FC0_SUBTYPE_CTS:
  192                 case IEEE80211_FC0_SUBTYPE_ACK:
  193                         return sizeof(struct ieee80211_frame_ack);
  194                 case IEEE80211_FC0_SUBTYPE_BAR:
  195                         return sizeof(struct ieee80211_frame_bar);
  196                 }
  197                 return sizeof(struct ieee80211_frame_min);
  198         } else
  199                 return ieee80211_hdrsize(data);
  200 }
  201 
  202 /*
  203  * Template for an in-kernel authenticator.  Authenticators
  204  * register with the protocol code and are typically loaded
  205  * as separate modules as needed.  One special authenticator
  206  * is xauth; it intercepts requests so that protocols like
  207  * WPA can be handled in user space.
  208  */
  209 struct ieee80211_authenticator {
  210         const char *ia_name;            /* printable name */
  211         int     (*ia_attach)(struct ieee80211vap *);
  212         void    (*ia_detach)(struct ieee80211vap *);
  213         void    (*ia_node_join)(struct ieee80211_node *);
  214         void    (*ia_node_leave)(struct ieee80211_node *);
  215 };
  216 void    ieee80211_authenticator_register(int type,
  217                 const struct ieee80211_authenticator *);
  218 void    ieee80211_authenticator_unregister(int type);
  219 const struct ieee80211_authenticator *ieee80211_authenticator_get(int auth);
  220 
  221 struct ieee80211req;
  222 /*
  223  * Template for an MAC ACL policy module.  Such modules
  224  * register with the protocol code and are passed the sender's
  225  * address of each received auth frame for validation.
  226  */
  227 struct ieee80211_aclator {
  228         const char *iac_name;           /* printable name */
  229         int     (*iac_attach)(struct ieee80211vap *);
  230         void    (*iac_detach)(struct ieee80211vap *);
  231         int     (*iac_check)(struct ieee80211vap *,
  232                         const struct ieee80211_frame *wh);
  233         int     (*iac_add)(struct ieee80211vap *,
  234                         const uint8_t mac[IEEE80211_ADDR_LEN]);
  235         int     (*iac_remove)(struct ieee80211vap *,
  236                         const uint8_t mac[IEEE80211_ADDR_LEN]);
  237         int     (*iac_flush)(struct ieee80211vap *);
  238         int     (*iac_setpolicy)(struct ieee80211vap *, int);
  239         int     (*iac_getpolicy)(struct ieee80211vap *);
  240         int     (*iac_setioctl)(struct ieee80211vap *, struct ieee80211req *);
  241         int     (*iac_getioctl)(struct ieee80211vap *, struct ieee80211req *);
  242 };
  243 void    ieee80211_aclator_register(const struct ieee80211_aclator *);
  244 void    ieee80211_aclator_unregister(const struct ieee80211_aclator *);
  245 const struct ieee80211_aclator *ieee80211_aclator_get(const char *name);
  246 
  247 /* flags for ieee80211_fix_rate() */
  248 #define IEEE80211_F_DOSORT      0x00000001      /* sort rate list */
  249 #define IEEE80211_F_DOFRATE     0x00000002      /* use fixed legacy rate */
  250 #define IEEE80211_F_DONEGO      0x00000004      /* calc negotiated rate */
  251 #define IEEE80211_F_DODEL       0x00000008      /* delete ignore rate */
  252 #define IEEE80211_F_DOBRS       0x00000010      /* check basic rate set */
  253 #define IEEE80211_F_JOIN        0x00000020      /* sta joining our bss */
  254 #define IEEE80211_F_DOFMCS      0x00000040      /* use fixed HT rate */
  255 int     ieee80211_fix_rate(struct ieee80211_node *,
  256                 struct ieee80211_rateset *, int);
  257 
  258 /*
  259  * WME/WMM support.
  260  */
  261 struct wmeParams {
  262         uint8_t         wmep_acm;
  263         uint8_t         wmep_aifsn;
  264         uint8_t         wmep_logcwmin;          /* log2(cwmin) */
  265         uint8_t         wmep_logcwmax;          /* log2(cwmax) */
  266         uint8_t         wmep_txopLimit;
  267         uint8_t         wmep_noackPolicy;       /* 0 (ack), 1 (no ack) */
  268 };
  269 #define IEEE80211_TXOP_TO_US(_txop)     ((_txop)<<5)
  270 #define IEEE80211_US_TO_TXOP(_us)       ((_us)>>5)
  271 
  272 struct chanAccParams {
  273         uint8_t         cap_info;               /* version of the current set */
  274         struct wmeParams cap_wmeParams[WME_NUM_AC];
  275 };
  276 
  277 struct ieee80211_wme_state {
  278         u_int   wme_flags;
  279 #define WME_F_AGGRMODE  0x00000001      /* STATUS: WME aggressive mode */
  280         u_int   wme_hipri_traffic;      /* VI/VO frames in beacon interval */
  281         u_int   wme_hipri_switch_thresh;/* aggressive mode switch thresh */
  282         u_int   wme_hipri_switch_hysteresis;/* aggressive mode switch hysteresis */
  283 
  284         struct wmeParams wme_params[4];         /* from assoc resp for each AC*/
  285         struct chanAccParams wme_wmeChanParams; /* WME params applied to self */
  286         struct chanAccParams wme_wmeBssChanParams;/* WME params bcast to stations */
  287         struct chanAccParams wme_chanParams;    /* params applied to self */
  288         struct chanAccParams wme_bssChanParams; /* params bcast to stations */
  289 
  290         int     (*wme_update)(struct ieee80211com *);
  291 };
  292 
  293 void    ieee80211_wme_initparams(struct ieee80211vap *);
  294 void    ieee80211_wme_updateparams(struct ieee80211vap *);
  295 void    ieee80211_wme_updateparams_locked(struct ieee80211vap *);
  296 
  297 /*
  298  * Return the WME TID from a QoS frame.  If no TID
  299  * is present return the index for the "non-QoS" entry.
  300  */
  301 static __inline uint8_t
  302 ieee80211_gettid(const struct ieee80211_frame *wh)
  303 {
  304         uint8_t tid;
  305 
  306         if (IEEE80211_QOS_HAS_SEQ(wh)) {
  307                 if (IEEE80211_IS_DSTODS(wh))
  308                         tid = ((const struct ieee80211_qosframe_addr4 *)wh)->
  309                                 i_qos[0];
  310                 else
  311                         tid = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
  312                 tid &= IEEE80211_QOS_TID;
  313         } else
  314                 tid = IEEE80211_NONQOS_TID;
  315         return tid;
  316 }
  317 
  318 void    ieee80211_waitfor_parent(struct ieee80211com *);
  319 void    ieee80211_start_locked(struct ieee80211vap *);
  320 void    ieee80211_init(void *);
  321 void    ieee80211_start_all(struct ieee80211com *);
  322 void    ieee80211_stop_locked(struct ieee80211vap *);
  323 void    ieee80211_stop(struct ieee80211vap *);
  324 void    ieee80211_stop_all(struct ieee80211com *);
  325 void    ieee80211_suspend_all(struct ieee80211com *);
  326 void    ieee80211_resume_all(struct ieee80211com *);
  327 void    ieee80211_restart_all(struct ieee80211com *);
  328 void    ieee80211_dturbo_switch(struct ieee80211vap *, int newflags);
  329 void    ieee80211_swbmiss(void *arg);
  330 void    ieee80211_beacon_miss(struct ieee80211com *);
  331 int     ieee80211_new_state(struct ieee80211vap *, enum ieee80211_state, int);
  332 int     ieee80211_new_state_locked(struct ieee80211vap *, enum ieee80211_state,
  333                 int);
  334 void    ieee80211_print_essid(const uint8_t *, int);
  335 void    ieee80211_dump_pkt(struct ieee80211com *,
  336                 const uint8_t *, int, int, int);
  337 
  338 extern  const char *ieee80211_opmode_name[];
  339 extern  const char *ieee80211_state_name[IEEE80211_S_MAX];
  340 extern  const char *ieee80211_wme_acnames[];
  341 
  342 /*
  343  * Beacon frames constructed by ieee80211_beacon_alloc
  344  * have the following structure filled in so drivers
  345  * can update the frame later w/ minimal overhead.
  346  */
  347 struct ieee80211_beacon_offsets {
  348         uint8_t         bo_flags[4];    /* update/state flags */
  349         uint16_t        *bo_caps;       /* capabilities */
  350         uint8_t         *bo_cfp;        /* start of CFParms element */
  351         uint8_t         *bo_tim;        /* start of atim/dtim */
  352         uint8_t         *bo_wme;        /* start of WME parameters */
  353         uint8_t         *bo_tdma;       /* start of TDMA parameters */
  354         uint8_t         *bo_tim_trailer;/* start of fixed-size trailer */
  355         uint16_t        bo_tim_len;     /* atim/dtim length in bytes */
  356         uint16_t        bo_tim_trailer_len;/* tim trailer length in bytes */
  357         uint8_t         *bo_erp;        /* start of ERP element */
  358         uint8_t         *bo_htinfo;     /* start of HT info element */
  359         uint8_t         *bo_ath;        /* start of ATH parameters */
  360         uint8_t         *bo_appie;      /* start of AppIE element */
  361         uint16_t        bo_appie_len;   /* AppIE length in bytes */
  362         uint16_t        bo_csa_trailer_len;
  363         uint8_t         *bo_csa;        /* start of CSA element */
  364         uint8_t         *bo_quiet;      /* start of Quiet element */
  365         uint8_t         *bo_meshconf;   /* start of MESHCONF element */
  366         uint8_t         *bo_spare[3];
  367 };
  368 struct mbuf *ieee80211_beacon_alloc(struct ieee80211_node *);
  369 
  370 /*
  371  * Beacon frame updates are signaled through calls to iv_update_beacon
  372  * with one of the IEEE80211_BEACON_* tokens defined below.  For devices
  373  * that construct beacon frames on the host this can trigger a rebuild
  374  * or defer the processing.  For devices that offload beacon frame
  375  * handling this callback can be used to signal a rebuild.  The bo_flags
  376  * array in the ieee80211_beacon_offsets structure is intended to record
  377  * deferred processing requirements; ieee80211_beacon_update uses the
  378  * state to optimize work.  Since this structure is owned by the driver
  379  * and not visible to the 802.11 layer drivers must supply an iv_update_beacon
  380  * callback that marks the flag bits and schedules (as necessary) an update.
  381  */
  382 enum {
  383         IEEE80211_BEACON_CAPS   = 0,    /* capabilities */
  384         IEEE80211_BEACON_TIM    = 1,    /* DTIM/ATIM */
  385         IEEE80211_BEACON_WME    = 2,
  386         IEEE80211_BEACON_ERP    = 3,    /* Extended Rate Phy */
  387         IEEE80211_BEACON_HTINFO = 4,    /* HT Information */
  388         IEEE80211_BEACON_APPIE  = 5,    /* Application IE's */
  389         IEEE80211_BEACON_CFP    = 6,    /* CFParms */
  390         IEEE80211_BEACON_CSA    = 7,    /* Channel Switch Announcement */
  391         IEEE80211_BEACON_TDMA   = 9,    /* TDMA Info */
  392         IEEE80211_BEACON_ATH    = 10,   /* ATH parameters */
  393         IEEE80211_BEACON_MESHCONF = 11, /* Mesh Configuration */
  394 };
  395 int     ieee80211_beacon_update(struct ieee80211_node *,
  396                 struct mbuf *, int mcast);
  397 
  398 void    ieee80211_csa_startswitch(struct ieee80211com *,
  399                 struct ieee80211_channel *, int mode, int count);
  400 void    ieee80211_csa_completeswitch(struct ieee80211com *);
  401 void    ieee80211_csa_cancelswitch(struct ieee80211com *);
  402 void    ieee80211_cac_completeswitch(struct ieee80211vap *);
  403 
  404 /*
  405  * Notification methods called from the 802.11 state machine.
  406  * Note that while these are defined here, their implementation
  407  * is OS-specific.
  408  */
  409 void    ieee80211_notify_node_join(struct ieee80211_node *, int newassoc);
  410 void    ieee80211_notify_node_leave(struct ieee80211_node *);
  411 void    ieee80211_notify_scan_done(struct ieee80211vap *);
  412 void    ieee80211_notify_wds_discover(struct ieee80211_node *);
  413 void    ieee80211_notify_csa(struct ieee80211com *,
  414                 const struct ieee80211_channel *, int mode, int count);
  415 void    ieee80211_notify_radar(struct ieee80211com *,
  416                 const struct ieee80211_channel *);
  417 enum ieee80211_notify_cac_event {
  418         IEEE80211_NOTIFY_CAC_START  = 0, /* CAC timer started */
  419         IEEE80211_NOTIFY_CAC_STOP   = 1, /* CAC intentionally stopped */
  420         IEEE80211_NOTIFY_CAC_RADAR  = 2, /* CAC stopped due to radar detectio */
  421         IEEE80211_NOTIFY_CAC_EXPIRE = 3, /* CAC expired w/o radar */
  422 };
  423 void    ieee80211_notify_cac(struct ieee80211com *,
  424                 const struct ieee80211_channel *,
  425                 enum ieee80211_notify_cac_event);
  426 void    ieee80211_notify_node_deauth(struct ieee80211_node *);
  427 void    ieee80211_notify_node_auth(struct ieee80211_node *);
  428 void    ieee80211_notify_country(struct ieee80211vap *, const uint8_t [],
  429                 const uint8_t cc[2]);
  430 void    ieee80211_notify_radio(struct ieee80211com *, int);
  431 #endif /* _NET80211_IEEE80211_PROTO_H_ */

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