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  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2001 Atsushi Onoe
    5  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD$
   29  */
   30 #ifndef _NET80211_IEEE80211_PROTO_H_
   31 #define _NET80211_IEEE80211_PROTO_H_
   32 
   33 /*
   34  * 802.11 protocol implementation definitions.
   35  */
   36 
   37 enum ieee80211_state {
   38         IEEE80211_S_INIT        = 0,    /* default state */
   39         IEEE80211_S_SCAN        = 1,    /* scanning */
   40         IEEE80211_S_AUTH        = 2,    /* try to authenticate */
   41         IEEE80211_S_ASSOC       = 3,    /* try to assoc */
   42         IEEE80211_S_CAC         = 4,    /* doing channel availability check */
   43         IEEE80211_S_RUN         = 5,    /* operational (e.g. associated) */
   44         IEEE80211_S_CSA         = 6,    /* channel switch announce pending */
   45         IEEE80211_S_SLEEP       = 7,    /* power save */
   46 };
   47 #define IEEE80211_S_MAX         (IEEE80211_S_SLEEP+1)
   48 
   49 #define IEEE80211_SEND_MGMT(_ni,_type,_arg) \
   50         ((*(_ni)->ni_ic->ic_send_mgmt)(_ni, _type, _arg))
   51 
   52 extern  const char *mgt_subtype_name[];
   53 extern  const char *ctl_subtype_name[];
   54 extern  const char *ieee80211_phymode_name[IEEE80211_MODE_MAX];
   55 extern  const int ieee80211_opcap[IEEE80211_OPMODE_MAX];
   56 
   57 static __inline const char *
   58 ieee80211_mgt_subtype_name(uint8_t subtype)
   59 {
   60         return mgt_subtype_name[(subtype & IEEE80211_FC0_SUBTYPE_MASK) >>
   61                    IEEE80211_FC0_SUBTYPE_SHIFT];
   62 }
   63 
   64 static __inline const char *
   65 ieee80211_ctl_subtype_name(uint8_t subtype)
   66 {
   67         return ctl_subtype_name[(subtype & IEEE80211_FC0_SUBTYPE_MASK) >>
   68                    IEEE80211_FC0_SUBTYPE_SHIFT];
   69 }
   70 
   71 const char *ieee80211_reason_to_string(uint16_t);
   72 
   73 void    ieee80211_proto_attach(struct ieee80211com *);
   74 void    ieee80211_proto_detach(struct ieee80211com *);
   75 void    ieee80211_proto_vattach(struct ieee80211vap *);
   76 void    ieee80211_proto_vdetach(struct ieee80211vap *);
   77 
   78 void    ieee80211_promisc(struct ieee80211vap *, bool);
   79 void    ieee80211_allmulti(struct ieee80211vap *, bool);
   80 void    ieee80211_syncflag(struct ieee80211vap *, int flag);
   81 void    ieee80211_syncflag_ht(struct ieee80211vap *, int flag);
   82 void    ieee80211_syncflag_vht(struct ieee80211vap *, int flag);
   83 void    ieee80211_syncflag_ext(struct ieee80211vap *, int flag);
   84 
   85 #define ieee80211_input(ni, m, rssi, nf) \
   86         ((ni)->ni_vap->iv_input(ni, m, NULL, rssi, nf))
   87 int     ieee80211_input_all(struct ieee80211com *, struct mbuf *, int, int);
   88 
   89 int     ieee80211_input_mimo(struct ieee80211_node *, struct mbuf *);
   90 int     ieee80211_input_mimo_all(struct ieee80211com *, struct mbuf *);
   91 
   92 struct ieee80211_bpf_params;
   93 int     ieee80211_mgmt_output(struct ieee80211_node *, struct mbuf *, int,
   94                 struct ieee80211_bpf_params *);
   95 int     ieee80211_raw_xmit(struct ieee80211_node *, struct mbuf *,
   96                 const struct ieee80211_bpf_params *);
   97 int     ieee80211_output(struct ifnet *, struct mbuf *,
   98                const struct sockaddr *, struct route *ro);
   99 int     ieee80211_vap_pkt_send_dest(struct ieee80211vap *, struct mbuf *,
  100                 struct ieee80211_node *);
  101 int     ieee80211_raw_output(struct ieee80211vap *, struct ieee80211_node *,
  102                 struct mbuf *, const struct ieee80211_bpf_params *);
  103 void    ieee80211_send_setup(struct ieee80211_node *, struct mbuf *, int, int,
  104         const uint8_t [IEEE80211_ADDR_LEN], const uint8_t [IEEE80211_ADDR_LEN],
  105         const uint8_t [IEEE80211_ADDR_LEN]);
  106 int     ieee80211_vap_transmit(struct ifnet *ifp, struct mbuf *m);
  107 void    ieee80211_vap_qflush(struct ifnet *ifp);
  108 int     ieee80211_send_nulldata(struct ieee80211_node *);
  109 int     ieee80211_classify(struct ieee80211_node *, struct mbuf *m);
  110 struct mbuf *ieee80211_mbuf_adjust(struct ieee80211vap *, int,
  111                 struct ieee80211_key *, struct mbuf *);
  112 struct mbuf *ieee80211_encap(struct ieee80211vap *, struct ieee80211_node *,
  113                 struct mbuf *);
  114 void    ieee80211_free_mbuf(struct mbuf *);
  115 int     ieee80211_send_mgmt(struct ieee80211_node *, int, int);
  116 struct ieee80211_appie;
  117 int     ieee80211_send_probereq(struct ieee80211_node *ni,
  118                 const uint8_t sa[IEEE80211_ADDR_LEN],
  119                 const uint8_t da[IEEE80211_ADDR_LEN],
  120                 const uint8_t bssid[IEEE80211_ADDR_LEN],
  121                 const uint8_t *ssid, size_t ssidlen);
  122 struct mbuf *   ieee80211_ff_encap1(struct ieee80211vap *, struct mbuf *,
  123                 const struct ether_header *);
  124 void    ieee80211_tx_complete(struct ieee80211_node *,
  125                 struct mbuf *, int);
  126 
  127 /*
  128  * The formation of ProbeResponse frames requires guidance to
  129  * deal with legacy clients.  When the client is identified as
  130  * "legacy 11b" ieee80211_send_proberesp is passed this token.
  131  */
  132 #define IEEE80211_SEND_LEGACY_11B       0x1     /* legacy 11b client */
  133 #define IEEE80211_SEND_LEGACY_11        0x2     /* other legacy client */
  134 #define IEEE80211_SEND_LEGACY           0x3     /* any legacy client */
  135 struct mbuf *ieee80211_alloc_proberesp(struct ieee80211_node *, int);
  136 int     ieee80211_send_proberesp(struct ieee80211vap *,
  137                 const uint8_t da[IEEE80211_ADDR_LEN], int);
  138 struct mbuf *ieee80211_alloc_rts(struct ieee80211com *ic,
  139                 const uint8_t [IEEE80211_ADDR_LEN],
  140                 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
  141 struct mbuf *ieee80211_alloc_cts(struct ieee80211com *,
  142                 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
  143 struct mbuf *ieee80211_alloc_prot(struct ieee80211_node *,
  144                 const struct mbuf *, uint8_t, int);
  145 
  146 uint8_t *ieee80211_add_rates(uint8_t *, const struct ieee80211_rateset *);
  147 uint8_t *ieee80211_add_xrates(uint8_t *, const struct ieee80211_rateset *);
  148 uint8_t *ieee80211_add_ssid(uint8_t *, const uint8_t *, u_int);
  149 uint8_t *ieee80211_add_wpa(uint8_t *, const struct ieee80211vap *);
  150 uint8_t *ieee80211_add_rsn(uint8_t *, const struct ieee80211vap *);
  151 uint8_t *ieee80211_add_qos(uint8_t *, const struct ieee80211_node *);
  152 uint16_t ieee80211_getcapinfo(struct ieee80211vap *,
  153                 struct ieee80211_channel *);
  154 struct ieee80211_wme_state;
  155 uint8_t * ieee80211_add_wme_info(uint8_t *frm, struct ieee80211_wme_state *wme,
  156             struct ieee80211_node *ni);
  157 
  158 void    ieee80211_vap_reset_erp(struct ieee80211vap *);
  159 void    ieee80211_reset_erp(struct ieee80211com *);
  160 void    ieee80211_vap_set_shortslottime(struct ieee80211vap *, int onoff);
  161 int     ieee80211_iserp_rateset(const struct ieee80211_rateset *);
  162 void    ieee80211_setbasicrates(struct ieee80211_rateset *,
  163                 enum ieee80211_phymode);
  164 void    ieee80211_addbasicrates(struct ieee80211_rateset *,
  165                 enum ieee80211_phymode);
  166 
  167 /*
  168  * Return the size of the 802.11 header for a management or data frame.
  169  */
  170 static __inline int
  171 ieee80211_hdrsize(const void *data)
  172 {
  173         const struct ieee80211_frame *wh = data;
  174         int size = sizeof(struct ieee80211_frame);
  175 
  176         /* NB: we don't handle control frames */
  177         KASSERT((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_CTL,
  178                 ("%s: control frame", __func__));
  179         if (IEEE80211_IS_DSTODS(wh))
  180                 size += IEEE80211_ADDR_LEN;
  181         if (IEEE80211_QOS_HAS_SEQ(wh))
  182                 size += sizeof(uint16_t);
  183         return size;
  184 }
  185 
  186 /*
  187  * Like ieee80211_hdrsize, but handles any type of frame.
  188  */
  189 static __inline int
  190 ieee80211_anyhdrsize(const void *data)
  191 {
  192         const struct ieee80211_frame *wh = data;
  193 
  194         if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) {
  195                 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
  196                 case IEEE80211_FC0_SUBTYPE_CTS:
  197                 case IEEE80211_FC0_SUBTYPE_ACK:
  198                         return sizeof(struct ieee80211_frame_ack);
  199                 case IEEE80211_FC0_SUBTYPE_BAR:
  200                         return sizeof(struct ieee80211_frame_bar);
  201                 }
  202                 return sizeof(struct ieee80211_frame_min);
  203         } else
  204                 return ieee80211_hdrsize(data);
  205 }
  206 
  207 /*
  208  * Template for an in-kernel authenticator.  Authenticators
  209  * register with the protocol code and are typically loaded
  210  * as separate modules as needed.  One special authenticator
  211  * is xauth; it intercepts requests so that protocols like
  212  * WPA can be handled in user space.
  213  */
  214 struct ieee80211_authenticator {
  215         const char *ia_name;            /* printable name */
  216         int     (*ia_attach)(struct ieee80211vap *);
  217         void    (*ia_detach)(struct ieee80211vap *);
  218         void    (*ia_node_join)(struct ieee80211_node *);
  219         void    (*ia_node_leave)(struct ieee80211_node *);
  220 };
  221 void    ieee80211_authenticator_register(int type,
  222                 const struct ieee80211_authenticator *);
  223 void    ieee80211_authenticator_unregister(int type);
  224 const struct ieee80211_authenticator *ieee80211_authenticator_get(int auth);
  225 
  226 struct ieee80211req;
  227 /*
  228  * Template for an MAC ACL policy module.  Such modules
  229  * register with the protocol code and are passed the sender's
  230  * address of each received auth frame for validation.
  231  */
  232 struct ieee80211_aclator {
  233         const char *iac_name;           /* printable name */
  234         int     (*iac_attach)(struct ieee80211vap *);
  235         void    (*iac_detach)(struct ieee80211vap *);
  236         int     (*iac_check)(struct ieee80211vap *,
  237                         const struct ieee80211_frame *wh);
  238         int     (*iac_add)(struct ieee80211vap *,
  239                         const uint8_t mac[IEEE80211_ADDR_LEN]);
  240         int     (*iac_remove)(struct ieee80211vap *,
  241                         const uint8_t mac[IEEE80211_ADDR_LEN]);
  242         int     (*iac_flush)(struct ieee80211vap *);
  243         int     (*iac_setpolicy)(struct ieee80211vap *, int);
  244         int     (*iac_getpolicy)(struct ieee80211vap *);
  245         int     (*iac_setioctl)(struct ieee80211vap *, struct ieee80211req *);
  246         int     (*iac_getioctl)(struct ieee80211vap *, struct ieee80211req *);
  247 };
  248 void    ieee80211_aclator_register(const struct ieee80211_aclator *);
  249 void    ieee80211_aclator_unregister(const struct ieee80211_aclator *);
  250 const struct ieee80211_aclator *ieee80211_aclator_get(const char *name);
  251 
  252 /* flags for ieee80211_fix_rate() */
  253 #define IEEE80211_F_DOSORT      0x00000001      /* sort rate list */
  254 #define IEEE80211_F_DOFRATE     0x00000002      /* use fixed legacy rate */
  255 #define IEEE80211_F_DONEGO      0x00000004      /* calc negotiated rate */
  256 #define IEEE80211_F_DODEL       0x00000008      /* delete ignore rate */
  257 #define IEEE80211_F_DOBRS       0x00000010      /* check basic rate set */
  258 #define IEEE80211_F_JOIN        0x00000020      /* sta joining our bss */
  259 #define IEEE80211_F_DOFMCS      0x00000040      /* use fixed HT rate */
  260 int     ieee80211_fix_rate(struct ieee80211_node *,
  261                 struct ieee80211_rateset *, int);
  262 
  263 /*
  264  * WME/WMM support.
  265  */
  266 struct wmeParams {
  267         uint8_t         wmep_acm;
  268         uint8_t         wmep_aifsn;
  269         uint8_t         wmep_logcwmin;          /* log2(cwmin) */
  270         uint8_t         wmep_logcwmax;          /* log2(cwmax) */
  271         uint8_t         wmep_txopLimit;
  272         uint8_t         wmep_noackPolicy;       /* 0 (ack), 1 (no ack) */
  273 };
  274 #define IEEE80211_TXOP_TO_US(_txop)     ((_txop)<<5)
  275 #define IEEE80211_US_TO_TXOP(_us)       ((_us)>>5)
  276 
  277 struct chanAccParams {
  278         uint8_t         cap_info;               /* version of the current set */
  279         struct wmeParams cap_wmeParams[WME_NUM_AC];
  280 };
  281 
  282 struct ieee80211_wme_state {
  283         u_int   wme_flags;
  284 #define WME_F_AGGRMODE  0x00000001      /* STATUS: WME aggressive mode */
  285         u_int   wme_hipri_traffic;      /* VI/VO frames in beacon interval */
  286         u_int   wme_hipri_switch_thresh;/* aggressive mode switch thresh */
  287         u_int   wme_hipri_switch_hysteresis;/* aggressive mode switch hysteresis */
  288 
  289         struct wmeParams wme_params[WME_NUM_AC]; /* from assoc resp for each AC */
  290         struct chanAccParams wme_wmeChanParams; /* WME params applied to self */
  291         struct chanAccParams wme_wmeBssChanParams;/* WME params bcast to stations */
  292         struct chanAccParams wme_chanParams;    /* params applied to self */
  293         struct chanAccParams wme_bssChanParams; /* params bcast to stations */
  294 
  295         int     (*wme_update)(struct ieee80211com *);
  296 };
  297 
  298 void    ieee80211_wme_initparams(struct ieee80211vap *);
  299 void    ieee80211_wme_updateparams(struct ieee80211vap *);
  300 void    ieee80211_wme_updateparams_locked(struct ieee80211vap *);
  301 void    ieee80211_wme_vap_getparams(struct ieee80211vap *vap,
  302             struct chanAccParams *);
  303 void    ieee80211_wme_ic_getparams(struct ieee80211com *ic,
  304             struct chanAccParams *);
  305 int     ieee80211_wme_vap_ac_is_noack(struct ieee80211vap *vap, int ac);
  306 void    ieee80211_vap_update_preamble(struct ieee80211vap *vap);
  307 void    ieee80211_vap_update_erp_protmode(struct ieee80211vap *vap);
  308 void    ieee80211_vap_update_ht_protmode(struct ieee80211vap *vap);
  309 
  310 /*
  311  * Return pointer to the QoS field from a Qos frame.
  312  */
  313 static __inline uint8_t *
  314 ieee80211_getqos(void *data)
  315 {
  316         struct ieee80211_frame *wh = data;
  317 
  318         KASSERT(IEEE80211_QOS_HAS_SEQ(wh), ("QoS field is absent!"));
  319 
  320         if (IEEE80211_IS_DSTODS(wh))
  321                 return (((struct ieee80211_qosframe_addr4 *)wh)->i_qos);
  322         else
  323                 return (((struct ieee80211_qosframe *)wh)->i_qos);
  324 }
  325 
  326 /*
  327  * Return the WME TID from a QoS frame.  If no TID
  328  * is present return the index for the "non-QoS" entry.
  329  */
  330 static __inline uint8_t
  331 ieee80211_gettid(const struct ieee80211_frame *wh)
  332 {
  333         uint8_t tid;
  334 
  335         if (IEEE80211_QOS_HAS_SEQ(wh)) {
  336                 if (IEEE80211_IS_DSTODS(wh))
  337                         tid = ((const struct ieee80211_qosframe_addr4 *)wh)->
  338                                 i_qos[0];
  339                 else
  340                         tid = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
  341                 tid &= IEEE80211_QOS_TID;
  342         } else
  343                 tid = IEEE80211_NONQOS_TID;
  344         return tid;
  345 }
  346 
  347 void    ieee80211_waitfor_parent(struct ieee80211com *);
  348 void    ieee80211_start_locked(struct ieee80211vap *);
  349 void    ieee80211_init(void *);
  350 void    ieee80211_start_all(struct ieee80211com *);
  351 void    ieee80211_stop_locked(struct ieee80211vap *);
  352 void    ieee80211_stop(struct ieee80211vap *);
  353 void    ieee80211_stop_all(struct ieee80211com *);
  354 void    ieee80211_suspend_all(struct ieee80211com *);
  355 void    ieee80211_resume_all(struct ieee80211com *);
  356 void    ieee80211_restart_all(struct ieee80211com *);
  357 void    ieee80211_dturbo_switch(struct ieee80211vap *, int newflags);
  358 void    ieee80211_swbmiss(void *arg);
  359 void    ieee80211_beacon_miss(struct ieee80211com *);
  360 int     ieee80211_new_state(struct ieee80211vap *, enum ieee80211_state, int);
  361 int     ieee80211_new_state_locked(struct ieee80211vap *, enum ieee80211_state,
  362                 int);
  363 void    ieee80211_print_essid(const uint8_t *, int);
  364 void    ieee80211_dump_pkt(struct ieee80211com *,
  365                 const uint8_t *, int, int, int);
  366 
  367 extern  const char *ieee80211_opmode_name[];
  368 extern  const char *ieee80211_state_name[IEEE80211_S_MAX];
  369 extern  const char *ieee80211_wme_acnames[];
  370 
  371 /*
  372  * Beacon frames constructed by ieee80211_beacon_alloc
  373  * have the following structure filled in so drivers
  374  * can update the frame later w/ minimal overhead.
  375  */
  376 struct ieee80211_beacon_offsets {
  377         uint8_t         bo_flags[4];    /* update/state flags */
  378         uint16_t        *bo_caps;       /* capabilities */
  379         uint8_t         *bo_cfp;        /* start of CFParms element */
  380         uint8_t         *bo_tim;        /* start of atim/dtim */
  381         uint8_t         *bo_wme;        /* start of WME parameters */
  382         uint8_t         *bo_tdma;       /* start of TDMA parameters */
  383         uint8_t         *bo_tim_trailer;/* start of fixed-size trailer */
  384         uint16_t        bo_tim_len;     /* atim/dtim length in bytes */
  385         uint16_t        bo_tim_trailer_len;/* tim trailer length in bytes */
  386         uint8_t         *bo_erp;        /* start of ERP element */
  387         uint8_t         *bo_htinfo;     /* start of HT info element */
  388         uint8_t         *bo_ath;        /* start of ATH parameters */
  389         uint8_t         *bo_appie;      /* start of AppIE element */
  390         uint16_t        bo_appie_len;   /* AppIE length in bytes */
  391         uint16_t        bo_csa_trailer_len;
  392         uint8_t         *bo_csa;        /* start of CSA element */
  393         uint8_t         *bo_quiet;      /* start of Quiet element */
  394         uint8_t         *bo_meshconf;   /* start of MESHCONF element */
  395         uint8_t         *bo_vhtinfo;    /* start of VHT info element (XXX VHTCAP?) */
  396         uint8_t         *bo_spare[2];
  397 };
  398 struct mbuf *ieee80211_beacon_alloc(struct ieee80211_node *);
  399 
  400 /*
  401  * Beacon frame updates are signaled through calls to iv_update_beacon
  402  * with one of the IEEE80211_BEACON_* tokens defined below.  For devices
  403  * that construct beacon frames on the host this can trigger a rebuild
  404  * or defer the processing.  For devices that offload beacon frame
  405  * handling this callback can be used to signal a rebuild.  The bo_flags
  406  * array in the ieee80211_beacon_offsets structure is intended to record
  407  * deferred processing requirements; ieee80211_beacon_update uses the
  408  * state to optimize work.  Since this structure is owned by the driver
  409  * and not visible to the 802.11 layer drivers must supply an iv_update_beacon
  410  * callback that marks the flag bits and schedules (as necessary) an update.
  411  */
  412 enum {
  413         IEEE80211_BEACON_CAPS   = 0,    /* capabilities */
  414         IEEE80211_BEACON_TIM    = 1,    /* DTIM/ATIM */
  415         IEEE80211_BEACON_WME    = 2,
  416         IEEE80211_BEACON_ERP    = 3,    /* Extended Rate Phy */
  417         IEEE80211_BEACON_HTINFO = 4,    /* HT Information */
  418         IEEE80211_BEACON_APPIE  = 5,    /* Application IE's */
  419         IEEE80211_BEACON_CFP    = 6,    /* CFParms */
  420         IEEE80211_BEACON_CSA    = 7,    /* Channel Switch Announcement */
  421         IEEE80211_BEACON_TDMA   = 9,    /* TDMA Info */
  422         IEEE80211_BEACON_ATH    = 10,   /* ATH parameters */
  423         IEEE80211_BEACON_MESHCONF = 11, /* Mesh Configuration */
  424         IEEE80211_BEACON_QUIET  = 12,   /* Quiet time IE */
  425         IEEE80211_BEACON_VHTINFO        = 13,   /* VHT information */
  426 };
  427 int     ieee80211_beacon_update(struct ieee80211_node *,
  428                 struct mbuf *, int mcast);
  429 
  430 void    ieee80211_csa_startswitch(struct ieee80211com *,
  431                 struct ieee80211_channel *, int mode, int count);
  432 void    ieee80211_csa_completeswitch(struct ieee80211com *);
  433 void    ieee80211_csa_cancelswitch(struct ieee80211com *);
  434 void    ieee80211_cac_completeswitch(struct ieee80211vap *);
  435 
  436 /*
  437  * Notification methods called from the 802.11 state machine.
  438  * Note that while these are defined here, their implementation
  439  * is OS-specific.
  440  */
  441 void    ieee80211_notify_node_join(struct ieee80211_node *, int newassoc);
  442 void    ieee80211_notify_node_leave(struct ieee80211_node *);
  443 void    ieee80211_notify_scan_done(struct ieee80211vap *);
  444 void    ieee80211_notify_wds_discover(struct ieee80211_node *);
  445 void    ieee80211_notify_csa(struct ieee80211com *,
  446                 const struct ieee80211_channel *, int mode, int count);
  447 void    ieee80211_notify_radar(struct ieee80211com *,
  448                 const struct ieee80211_channel *);
  449 enum ieee80211_notify_cac_event {
  450         IEEE80211_NOTIFY_CAC_START  = 0, /* CAC timer started */
  451         IEEE80211_NOTIFY_CAC_STOP   = 1, /* CAC intentionally stopped */
  452         IEEE80211_NOTIFY_CAC_RADAR  = 2, /* CAC stopped due to radar detectio */
  453         IEEE80211_NOTIFY_CAC_EXPIRE = 3, /* CAC expired w/o radar */
  454 };
  455 void    ieee80211_notify_cac(struct ieee80211com *,
  456                 const struct ieee80211_channel *,
  457                 enum ieee80211_notify_cac_event);
  458 void    ieee80211_notify_node_deauth(struct ieee80211_node *);
  459 void    ieee80211_notify_node_auth(struct ieee80211_node *);
  460 void    ieee80211_notify_country(struct ieee80211vap *, const uint8_t [],
  461                 const uint8_t cc[2]);
  462 void    ieee80211_notify_radio(struct ieee80211com *, int);
  463 void    ieee80211_notify_ifnet_change(struct ieee80211vap *);
  464 #endif /* _NET80211_IEEE80211_PROTO_H_ */

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