The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_freebsd.h

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    1 /*-
    2  * Copyright (c) 2003-2008 Sam Leffler, Errno Consulting
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   24  *
   25  * $FreeBSD: stable/8/sys/net80211/ieee80211_freebsd.h 207912 2010-05-11 11:08:15Z rpaulo $
   26  */
   27 #ifndef _NET80211_IEEE80211_FREEBSD_H_
   28 #define _NET80211_IEEE80211_FREEBSD_H_
   29 
   30 #ifdef _KERNEL
   31 #include <sys/param.h>
   32 #include <sys/lock.h>
   33 #include <sys/mutex.h>
   34 #include <sys/rwlock.h>
   35 #include <sys/sysctl.h>
   36 #include <sys/taskqueue.h>
   37 
   38 /*
   39  * Common state locking definitions.
   40  */
   41 typedef struct {
   42         char            name[16];               /* e.g. "ath0_com_lock" */
   43         struct mtx      mtx;
   44 } ieee80211_com_lock_t;
   45 #define IEEE80211_LOCK_INIT(_ic, _name) do {                            \
   46         ieee80211_com_lock_t *cl = &(_ic)->ic_comlock;                  \
   47         snprintf(cl->name, sizeof(cl->name), "%s_com_lock", _name);     \
   48         mtx_init(&cl->mtx, cl->name, NULL, MTX_DEF | MTX_RECURSE);      \
   49 } while (0)
   50 #define IEEE80211_LOCK_OBJ(_ic) (&(_ic)->ic_comlock.mtx)
   51 #define IEEE80211_LOCK_DESTROY(_ic) mtx_destroy(IEEE80211_LOCK_OBJ(_ic))
   52 #define IEEE80211_LOCK(_ic)        mtx_lock(IEEE80211_LOCK_OBJ(_ic))
   53 #define IEEE80211_UNLOCK(_ic)      mtx_unlock(IEEE80211_LOCK_OBJ(_ic))
   54 #define IEEE80211_LOCK_ASSERT(_ic) \
   55         mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_OWNED)
   56 
   57 /*
   58  * Node locking definitions.
   59  */
   60 typedef struct {
   61         char            name[16];               /* e.g. "ath0_node_lock" */
   62         struct mtx      mtx;
   63 } ieee80211_node_lock_t;
   64 #define IEEE80211_NODE_LOCK_INIT(_nt, _name) do {                       \
   65         ieee80211_node_lock_t *nl = &(_nt)->nt_nodelock;                \
   66         snprintf(nl->name, sizeof(nl->name), "%s_node_lock", _name);    \
   67         mtx_init(&nl->mtx, nl->name, NULL, MTX_DEF | MTX_RECURSE);      \
   68 } while (0)
   69 #define IEEE80211_NODE_LOCK_OBJ(_nt)    (&(_nt)->nt_nodelock.mtx)
   70 #define IEEE80211_NODE_LOCK_DESTROY(_nt) \
   71         mtx_destroy(IEEE80211_NODE_LOCK_OBJ(_nt))
   72 #define IEEE80211_NODE_LOCK(_nt) \
   73         mtx_lock(IEEE80211_NODE_LOCK_OBJ(_nt))
   74 #define IEEE80211_NODE_IS_LOCKED(_nt) \
   75         mtx_owned(IEEE80211_NODE_LOCK_OBJ(_nt))
   76 #define IEEE80211_NODE_UNLOCK(_nt) \
   77         mtx_unlock(IEEE80211_NODE_LOCK_OBJ(_nt))
   78 #define IEEE80211_NODE_LOCK_ASSERT(_nt) \
   79         mtx_assert(IEEE80211_NODE_LOCK_OBJ(_nt), MA_OWNED)
   80 
   81 /*
   82  * Node table iteration locking definitions; this protects the
   83  * scan generation # used to iterate over the station table
   84  * while grabbing+releasing the node lock.
   85  */
   86 typedef struct {
   87         char            name[16];               /* e.g. "ath0_scan_lock" */
   88         struct mtx      mtx;
   89 } ieee80211_scan_lock_t;
   90 #define IEEE80211_NODE_ITERATE_LOCK_INIT(_nt, _name) do {               \
   91         ieee80211_scan_lock_t *sl = &(_nt)->nt_scanlock;                \
   92         snprintf(sl->name, sizeof(sl->name), "%s_scan_lock", _name);    \
   93         mtx_init(&sl->mtx, sl->name, NULL, MTX_DEF);                    \
   94 } while (0)
   95 #define IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt)    (&(_nt)->nt_scanlock.mtx)
   96 #define IEEE80211_NODE_ITERATE_LOCK_DESTROY(_nt) \
   97         mtx_destroy(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
   98 #define IEEE80211_NODE_ITERATE_LOCK(_nt) \
   99         mtx_lock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
  100 #define IEEE80211_NODE_ITERATE_UNLOCK(_nt) \
  101         mtx_unlock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
  102 
  103 /*
  104  * Power-save queue definitions. 
  105  */
  106 typedef struct mtx ieee80211_psq_lock_t;
  107 #define IEEE80211_PSQ_INIT(_psq, _name) \
  108         mtx_init(&(_psq)->psq_lock, _name, "802.11 ps q", MTX_DEF)
  109 #define IEEE80211_PSQ_DESTROY(_psq)     mtx_destroy(&(_psq)->psq_lock)
  110 #define IEEE80211_PSQ_LOCK(_psq)        mtx_lock(&(_psq)->psq_lock)
  111 #define IEEE80211_PSQ_UNLOCK(_psq)      mtx_unlock(&(_psq)->psq_lock)
  112 
  113 #ifndef IF_PREPEND_LIST
  114 #define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {        \
  115         (mtail)->m_nextpkt = (ifq)->ifq_head;                   \
  116         if ((ifq)->ifq_tail == NULL)                            \
  117                 (ifq)->ifq_tail = (mtail);                      \
  118         (ifq)->ifq_head = (mhead);                              \
  119         (ifq)->ifq_len += (mcount);                             \
  120 } while (0)
  121 #define IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {         \
  122         IF_LOCK(ifq);                                           \
  123         _IF_PREPEND_LIST(ifq, mhead, mtail, mcount);            \
  124         IF_UNLOCK(ifq);                                         \
  125 } while (0)
  126 #endif /* IF_PREPEND_LIST */
  127  
  128 /*
  129  * Age queue definitions.
  130  */
  131 typedef struct mtx ieee80211_ageq_lock_t;
  132 #define IEEE80211_AGEQ_INIT(_aq, _name) \
  133         mtx_init(&(_aq)->aq_lock, _name, "802.11 age q", MTX_DEF)
  134 #define IEEE80211_AGEQ_DESTROY(_aq)     mtx_destroy(&(_aq)->aq_lock)
  135 #define IEEE80211_AGEQ_LOCK(_aq)        mtx_lock(&(_aq)->aq_lock)
  136 #define IEEE80211_AGEQ_UNLOCK(_aq)      mtx_unlock(&(_aq)->aq_lock)
  137 
  138 /*
  139  * 802.1x MAC ACL database locking definitions.
  140  */
  141 typedef struct mtx acl_lock_t;
  142 #define ACL_LOCK_INIT(_as, _name) \
  143         mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF)
  144 #define ACL_LOCK_DESTROY(_as)           mtx_destroy(&(_as)->as_lock)
  145 #define ACL_LOCK(_as)                   mtx_lock(&(_as)->as_lock)
  146 #define ACL_UNLOCK(_as)                 mtx_unlock(&(_as)->as_lock)
  147 #define ACL_LOCK_ASSERT(_as) \
  148         mtx_assert((&(_as)->as_lock), MA_OWNED)
  149 
  150 /*
  151  * Scan table definitions.
  152  */
  153 typedef struct mtx ieee80211_scan_table_lock_t;
  154 #define IEEE80211_SCAN_TABLE_LOCK_INIT(_st, _name) \
  155         mtx_init(&(_st)->st_lock, _name, "802.11 scan table", MTX_DEF)
  156 #define IEEE80211_SCAN_TABLE_LOCK_DESTROY(_st)  mtx_destroy(&(_st)->st_lock)
  157 #define IEEE80211_SCAN_TABLE_LOCK(_st)          mtx_lock(&(_st)->st_lock)
  158 #define IEEE80211_SCAN_TABLE_UNLOCK(_st)        mtx_unlock(&(_st)->st_lock)
  159 
  160 /*
  161  * Node reference counting definitions.
  162  *
  163  * ieee80211_node_initref       initialize the reference count to 1
  164  * ieee80211_node_incref        add a reference
  165  * ieee80211_node_decref        remove a reference
  166  * ieee80211_node_dectestref    remove a reference and return 1 if this
  167  *                              is the last reference, otherwise 0
  168  * ieee80211_node_refcnt        reference count for printing (only)
  169  */
  170 #include <machine/atomic.h>
  171 
  172 #define ieee80211_node_initref(_ni) \
  173         do { ((_ni)->ni_refcnt = 1); } while (0)
  174 #define ieee80211_node_incref(_ni) \
  175         atomic_add_int(&(_ni)->ni_refcnt, 1)
  176 #define ieee80211_node_decref(_ni) \
  177         atomic_subtract_int(&(_ni)->ni_refcnt, 1)
  178 struct ieee80211_node;
  179 int     ieee80211_node_dectestref(struct ieee80211_node *ni);
  180 #define ieee80211_node_refcnt(_ni)      (_ni)->ni_refcnt
  181 
  182 struct ifqueue;
  183 struct ieee80211vap;
  184 void    ieee80211_drain_ifq(struct ifqueue *);
  185 void    ieee80211_flush_ifq(struct ifqueue *, struct ieee80211vap *);
  186 
  187 void    ieee80211_vap_destroy(struct ieee80211vap *);
  188 
  189 #define IFNET_IS_UP_RUNNING(_ifp) \
  190         (((_ifp)->if_flags & IFF_UP) && \
  191          ((_ifp)->if_drv_flags & IFF_DRV_RUNNING))
  192 
  193 #define msecs_to_ticks(ms)      (((ms)*hz)/1000)
  194 #define ticks_to_msecs(t)       (1000*(t) / hz)
  195 #define ticks_to_secs(t)        ((t) / hz)
  196 #define time_after(a,b)         ((long)(b) - (long)(a) < 0)
  197 #define time_before(a,b)        time_after(b,a)
  198 #define time_after_eq(a,b)      ((long)(a) - (long)(b) >= 0)
  199 #define time_before_eq(a,b)     time_after_eq(b,a)
  200 
  201 struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen);
  202 
  203 /* tx path usage */
  204 #define M_ENCAP         M_PROTO1                /* 802.11 encap done */
  205 #define M_EAPOL         M_PROTO3                /* PAE/EAPOL frame */
  206 #define M_PWR_SAV       M_PROTO4                /* bypass PS handling */
  207 #define M_MORE_DATA     M_PROTO5                /* more data frames to follow */
  208 #define M_FF            M_PROTO6                /* fast frame */
  209 #define M_TXCB          M_PROTO7                /* do tx complete callback */
  210 #define M_AMPDU_MPDU    M_PROTO8                /* ok for A-MPDU aggregation */
  211 #define M_80211_TX \
  212         (M_FRAG|M_FIRSTFRAG|M_LASTFRAG|M_ENCAP|M_EAPOL|M_PWR_SAV|\
  213          M_MORE_DATA|M_FF|M_TXCB|M_AMPDU_MPDU)
  214 
  215 /* rx path usage */
  216 #define M_AMPDU         M_PROTO1                /* A-MPDU subframe */
  217 #define M_WEP           M_PROTO2                /* WEP done by hardware */
  218 #if 0
  219 #define M_AMPDU_MPDU    M_PROTO8                /* A-MPDU re-order done */
  220 #endif
  221 #define M_80211_RX      (M_AMPDU|M_WEP|M_AMPDU_MPDU)
  222 
  223 #define IEEE80211_MBUF_TX_FLAG_BITS \
  224         "\2\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_ENCAP\6M_WEP\7M_EAPOL" \
  225         "\10M_PWR_SAV\11M_MORE_DATA\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
  226         "\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
  227         "\23M_NOFREE\24M_FF\25M_TXCB\26M_AMPDU_MPDU\27M_FLOWID"
  228 
  229 #define IEEE80211_MBUF_RX_FLAG_BITS \
  230         "\2\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_AMPDU\6M_WEP\7M_PROTO3" \
  231         "\10M_PROTO4\11M_PROTO5\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
  232         "\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
  233         "\23M_NOFREE\24M_PROTO6\25M_PROTO7\26M_AMPDU_MPDU\27M_FLOWID"
  234 
  235 /*
  236  * Store WME access control bits in the vlan tag.
  237  * This is safe since it's done after the packet is classified
  238  * (where we use any previous tag) and because it's passed
  239  * directly in to the driver and there's no chance someone
  240  * else will clobber them on us.
  241  */
  242 #define M_WME_SETAC(m, ac) \
  243         ((m)->m_pkthdr.ether_vtag = (ac))
  244 #define M_WME_GETAC(m)  ((m)->m_pkthdr.ether_vtag)
  245 
  246 /*
  247  * Mbufs on the power save queue are tagged with an age and
  248  * timed out.  We reuse the hardware checksum field in the
  249  * mbuf packet header to store this data.
  250  */
  251 #define M_AGE_SET(m,v)          (m->m_pkthdr.csum_data = v)
  252 #define M_AGE_GET(m)            (m->m_pkthdr.csum_data)
  253 #define M_AGE_SUB(m,adj)        (m->m_pkthdr.csum_data -= adj)
  254 
  255 /*
  256  * Store the sequence number.
  257  */
  258 #define M_SEQNO_SET(m, seqno) \
  259         ((m)->m_pkthdr.tso_segsz = (seqno))
  260 #define M_SEQNO_GET(m)  ((m)->m_pkthdr.tso_segsz)
  261 
  262 #define MTAG_ABI_NET80211       1132948340      /* net80211 ABI */
  263 
  264 struct ieee80211_cb {
  265         void    (*func)(struct ieee80211_node *, void *, int status);
  266         void    *arg;
  267 };
  268 #define NET80211_TAG_CALLBACK   0       /* xmit complete callback */
  269 int     ieee80211_add_callback(struct mbuf *m,
  270                 void (*func)(struct ieee80211_node *, void *, int), void *arg);
  271 void    ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int);
  272 
  273 void    get_random_bytes(void *, size_t);
  274 
  275 struct ieee80211com;
  276 
  277 void    ieee80211_sysctl_attach(struct ieee80211com *);
  278 void    ieee80211_sysctl_detach(struct ieee80211com *);
  279 void    ieee80211_sysctl_vattach(struct ieee80211vap *);
  280 void    ieee80211_sysctl_vdetach(struct ieee80211vap *);
  281 
  282 SYSCTL_DECL(_net_wlan);
  283 int     ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS);
  284 
  285 void    ieee80211_load_module(const char *);
  286 
  287 /*
  288  * A "policy module" is an adjunct module to net80211 that provides
  289  * functionality that typically includes policy decisions.  This
  290  * modularity enables extensibility and vendor-supplied functionality.
  291  */
  292 #define _IEEE80211_POLICY_MODULE(policy, name, version)                 \
  293 typedef void (*policy##_setup)(int);                                    \
  294 SET_DECLARE(policy##_set, policy##_setup);                              \
  295 static int                                                              \
  296 wlan_##name##_modevent(module_t mod, int type, void *unused)            \
  297 {                                                                       \
  298         policy##_setup * const *iter, f;                                \
  299         switch (type) {                                                 \
  300         case MOD_LOAD:                                                  \
  301                 SET_FOREACH(iter, policy##_set) {                       \
  302                         f = (void*) *iter;                              \
  303                         f(type);                                        \
  304                 }                                                       \
  305                 return 0;                                               \
  306         case MOD_UNLOAD:                                                \
  307         case MOD_QUIESCE:                                               \
  308                 if (nrefs) {                                            \
  309                         printf("wlan_##name: still in use (%u dynamic refs)\n",\
  310                                 nrefs);                                 \
  311                         return EBUSY;                                   \
  312                 }                                                       \
  313                 if (type == MOD_UNLOAD) {                               \
  314                         SET_FOREACH(iter, policy##_set) {               \
  315                                 f = (void*) *iter;                      \
  316                                 f(type);                                \
  317                         }                                               \
  318                 }                                                       \
  319                 return 0;                                               \
  320         }                                                               \
  321         return EINVAL;                                                  \
  322 }                                                                       \
  323 static moduledata_t name##_mod = {                                      \
  324         "wlan_" #name,                                                  \
  325         wlan_##name##_modevent,                                         \
  326         0                                                               \
  327 };                                                                      \
  328 DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
  329 MODULE_VERSION(wlan_##name, version);                                   \
  330 MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1)
  331 
  332 /*
  333  * Crypto modules implement cipher support.
  334  */
  335 #define IEEE80211_CRYPTO_MODULE(name, version)                          \
  336 _IEEE80211_POLICY_MODULE(crypto, name, version);                        \
  337 static void                                                             \
  338 name##_modevent(int type)                                               \
  339 {                                                                       \
  340         if (type == MOD_LOAD)                                           \
  341                 ieee80211_crypto_register(&name);                       \
  342         else                                                            \
  343                 ieee80211_crypto_unregister(&name);                     \
  344 }                                                                       \
  345 TEXT_SET(crypto##_set, name##_modevent)
  346 
  347 /*
  348  * Scanner modules provide scanning policy.
  349  */
  350 #define IEEE80211_SCANNER_MODULE(name, version)                         \
  351         _IEEE80211_POLICY_MODULE(scanner, name, version)
  352 
  353 #define IEEE80211_SCANNER_ALG(name, alg, v)                             \
  354 static void                                                             \
  355 name##_modevent(int type)                                               \
  356 {                                                                       \
  357         if (type == MOD_LOAD)                                           \
  358                 ieee80211_scanner_register(alg, &v);                    \
  359         else                                                            \
  360                 ieee80211_scanner_unregister(alg, &v);                  \
  361 }                                                                       \
  362 TEXT_SET(scanner_set, name##_modevent);                                 \
  363 
  364 /*
  365  * ACL modules implement acl policy.
  366  */
  367 #define IEEE80211_ACL_MODULE(name, alg, version)                        \
  368 _IEEE80211_POLICY_MODULE(acl, name, version);                           \
  369 static void                                                             \
  370 alg##_modevent(int type)                                                \
  371 {                                                                       \
  372         if (type == MOD_LOAD)                                           \
  373                 ieee80211_aclator_register(&alg);                       \
  374         else                                                            \
  375                 ieee80211_aclator_unregister(&alg);                     \
  376 }                                                                       \
  377 TEXT_SET(acl_set, alg##_modevent);                                      \
  378 
  379 /*
  380  * Authenticator modules handle 802.1x/WPA authentication.
  381  */
  382 #define IEEE80211_AUTH_MODULE(name, version)                            \
  383         _IEEE80211_POLICY_MODULE(auth, name, version)
  384 
  385 #define IEEE80211_AUTH_ALG(name, alg, v)                                \
  386 static void                                                             \
  387 name##_modevent(int type)                                               \
  388 {                                                                       \
  389         if (type == MOD_LOAD)                                           \
  390                 ieee80211_authenticator_register(alg, &v);              \
  391         else                                                            \
  392                 ieee80211_authenticator_unregister(alg);                \
  393 }                                                                       \
  394 TEXT_SET(auth_set, name##_modevent)
  395 
  396 /*
  397  * Rate control modules provide tx rate control support.
  398  */
  399 #define IEEE80211_RATECTL_MODULE(alg, version)                          \
  400         _IEEE80211_POLICY_MODULE(ratectl, alg, version);                \
  401 
  402 #define IEEE80211_RATECTL_ALG(name, alg, v)                             \
  403 static void                                                             \
  404 alg##_modevent(int type)                                                \
  405 {                                                                       \
  406         if (type == MOD_LOAD)                                           \
  407                 ieee80211_ratectl_register(alg, &v);                    \
  408         else                                                            \
  409                 ieee80211_ratectl_unregister(alg);                      \
  410 }                                                                       \
  411 TEXT_SET(ratectl##_set, alg##_modevent)
  412 
  413 struct ieee80211req;
  414 typedef int ieee80211_ioctl_getfunc(struct ieee80211vap *,
  415     struct ieee80211req *);
  416 SET_DECLARE(ieee80211_ioctl_getset, ieee80211_ioctl_getfunc);
  417 #define IEEE80211_IOCTL_GET(_name, _get) TEXT_SET(ieee80211_ioctl_getset, _get)
  418 
  419 typedef int ieee80211_ioctl_setfunc(struct ieee80211vap *,
  420     struct ieee80211req *);
  421 SET_DECLARE(ieee80211_ioctl_setset, ieee80211_ioctl_setfunc);
  422 #define IEEE80211_IOCTL_SET(_name, _set) TEXT_SET(ieee80211_ioctl_setset, _set)
  423 #endif /* _KERNEL */
  424 
  425 /* XXX this stuff belongs elsewhere */
  426 /*
  427  * Message formats for messages from the net80211 layer to user
  428  * applications via the routing socket.  These messages are appended
  429  * to an if_announcemsghdr structure.
  430  */
  431 struct ieee80211_join_event {
  432         uint8_t         iev_addr[6];
  433 };
  434 
  435 struct ieee80211_leave_event {
  436         uint8_t         iev_addr[6];
  437 };
  438 
  439 struct ieee80211_replay_event {
  440         uint8_t         iev_src[6];     /* src MAC */
  441         uint8_t         iev_dst[6];     /* dst MAC */
  442         uint8_t         iev_cipher;     /* cipher type */
  443         uint8_t         iev_keyix;      /* key id/index */
  444         uint64_t        iev_keyrsc;     /* RSC from key */
  445         uint64_t        iev_rsc;        /* RSC from frame */
  446 };
  447 
  448 struct ieee80211_michael_event {
  449         uint8_t         iev_src[6];     /* src MAC */
  450         uint8_t         iev_dst[6];     /* dst MAC */
  451         uint8_t         iev_cipher;     /* cipher type */
  452         uint8_t         iev_keyix;      /* key id/index */
  453 };
  454 
  455 struct ieee80211_wds_event {
  456         uint8_t         iev_addr[6];
  457 };
  458 
  459 struct ieee80211_csa_event {
  460         uint32_t        iev_flags;      /* channel flags */
  461         uint16_t        iev_freq;       /* setting in Mhz */
  462         uint8_t         iev_ieee;       /* IEEE channel number */
  463         uint8_t         iev_mode;       /* CSA mode */
  464         uint8_t         iev_count;      /* CSA count */
  465 };
  466 
  467 struct ieee80211_cac_event {
  468         uint32_t        iev_flags;      /* channel flags */
  469         uint16_t        iev_freq;       /* setting in Mhz */
  470         uint8_t         iev_ieee;       /* IEEE channel number */
  471         /* XXX timestamp? */
  472         uint8_t         iev_type;       /* IEEE80211_NOTIFY_CAC_* */
  473 };
  474 
  475 struct ieee80211_radar_event {
  476         uint32_t        iev_flags;      /* channel flags */
  477         uint16_t        iev_freq;       /* setting in Mhz */
  478         uint8_t         iev_ieee;       /* IEEE channel number */
  479         /* XXX timestamp? */
  480 };
  481 
  482 struct ieee80211_auth_event {
  483         uint8_t         iev_addr[6];
  484 };
  485 
  486 struct ieee80211_deauth_event {
  487         uint8_t         iev_addr[6];
  488 };
  489 
  490 struct ieee80211_country_event {
  491         uint8_t         iev_addr[6];
  492         uint8_t         iev_cc[2];      /* ISO country code */
  493 };
  494 
  495 struct ieee80211_radio_event {
  496         uint8_t         iev_state;      /* 1 on, 0 off */
  497 };
  498 
  499 #define RTM_IEEE80211_ASSOC     100     /* station associate (bss mode) */
  500 #define RTM_IEEE80211_REASSOC   101     /* station re-associate (bss mode) */
  501 #define RTM_IEEE80211_DISASSOC  102     /* station disassociate (bss mode) */
  502 #define RTM_IEEE80211_JOIN      103     /* station join (ap mode) */
  503 #define RTM_IEEE80211_LEAVE     104     /* station leave (ap mode) */
  504 #define RTM_IEEE80211_SCAN      105     /* scan complete, results available */
  505 #define RTM_IEEE80211_REPLAY    106     /* sequence counter replay detected */
  506 #define RTM_IEEE80211_MICHAEL   107     /* Michael MIC failure detected */
  507 #define RTM_IEEE80211_REJOIN    108     /* station re-associate (ap mode) */
  508 #define RTM_IEEE80211_WDS       109     /* WDS discovery (ap mode) */
  509 #define RTM_IEEE80211_CSA       110     /* Channel Switch Announcement event */
  510 #define RTM_IEEE80211_RADAR     111     /* radar event */
  511 #define RTM_IEEE80211_CAC       112     /* Channel Availability Check event */
  512 #define RTM_IEEE80211_DEAUTH    113     /* station deauthenticate */
  513 #define RTM_IEEE80211_AUTH      114     /* station authenticate (ap mode) */
  514 #define RTM_IEEE80211_COUNTRY   115     /* discovered country code (sta mode) */
  515 #define RTM_IEEE80211_RADIO     116     /* RF kill switch state change */
  516 
  517 /*
  518  * Structure prepended to raw packets sent through the bpf
  519  * interface when set to DLT_IEEE802_11_RADIO.  This allows
  520  * user applications to specify pretty much everything in
  521  * an Atheros tx descriptor.  XXX need to generalize.
  522  *
  523  * XXX cannot be more than 14 bytes as it is copied to a sockaddr's
  524  * XXX sa_data area.
  525  */
  526 struct ieee80211_bpf_params {
  527         uint8_t         ibp_vers;       /* version */
  528 #define IEEE80211_BPF_VERSION   0
  529         uint8_t         ibp_len;        /* header length in bytes */
  530         uint8_t         ibp_flags;
  531 #define IEEE80211_BPF_SHORTPRE  0x01    /* tx with short preamble */
  532 #define IEEE80211_BPF_NOACK     0x02    /* tx with no ack */
  533 #define IEEE80211_BPF_CRYPTO    0x04    /* tx with h/w encryption */
  534 #define IEEE80211_BPF_FCS       0x10    /* frame incldues FCS */
  535 #define IEEE80211_BPF_DATAPAD   0x20    /* frame includes data padding */
  536 #define IEEE80211_BPF_RTS       0x40    /* tx with RTS/CTS */
  537 #define IEEE80211_BPF_CTS       0x80    /* tx with CTS only */
  538         uint8_t         ibp_pri;        /* WME/WMM AC+tx antenna */
  539         uint8_t         ibp_try0;       /* series 1 try count */
  540         uint8_t         ibp_rate0;      /* series 1 IEEE tx rate */
  541         uint8_t         ibp_power;      /* tx power (device units) */
  542         uint8_t         ibp_ctsrate;    /* IEEE tx rate for CTS */
  543         uint8_t         ibp_try1;       /* series 2 try count */
  544         uint8_t         ibp_rate1;      /* series 2 IEEE tx rate */
  545         uint8_t         ibp_try2;       /* series 3 try count */
  546         uint8_t         ibp_rate2;      /* series 3 IEEE tx rate */
  547         uint8_t         ibp_try3;       /* series 4 try count */
  548         uint8_t         ibp_rate3;      /* series 4 IEEE tx rate */
  549 };
  550 #endif /* _NET80211_IEEE80211_FREEBSD_H_ */

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