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: releng/10.2/sys/net80211/ieee80211_freebsd.h 254640 2013-08-22 05:53:47Z adrian $
   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 #define IEEE80211_UNLOCK_ASSERT(_ic) \
   57         mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_NOTOWNED)
   58 
   59 /*
   60  * Transmit lock.
   61  *
   62  * This is a (mostly) temporary lock designed to serialise all of the
   63  * transmission operations throughout the stack.
   64  */
   65 typedef struct {
   66         char            name[16];               /* e.g. "ath0_com_lock" */
   67         struct mtx      mtx;
   68 } ieee80211_tx_lock_t;
   69 #define IEEE80211_TX_LOCK_INIT(_ic, _name) do {                         \
   70         ieee80211_tx_lock_t *cl = &(_ic)->ic_txlock;                    \
   71         snprintf(cl->name, sizeof(cl->name), "%s_tx_lock", _name);      \
   72         mtx_init(&cl->mtx, cl->name, NULL, MTX_DEF);    \
   73 } while (0)
   74 #define IEEE80211_TX_LOCK_OBJ(_ic)      (&(_ic)->ic_txlock.mtx)
   75 #define IEEE80211_TX_LOCK_DESTROY(_ic) mtx_destroy(IEEE80211_TX_LOCK_OBJ(_ic))
   76 #define IEEE80211_TX_LOCK(_ic)     mtx_lock(IEEE80211_TX_LOCK_OBJ(_ic))
   77 #define IEEE80211_TX_UNLOCK(_ic)           mtx_unlock(IEEE80211_TX_LOCK_OBJ(_ic))
   78 #define IEEE80211_TX_LOCK_ASSERT(_ic) \
   79         mtx_assert(IEEE80211_TX_LOCK_OBJ(_ic), MA_OWNED)
   80 #define IEEE80211_TX_UNLOCK_ASSERT(_ic) \
   81         mtx_assert(IEEE80211_TX_LOCK_OBJ(_ic), MA_NOTOWNED)
   82 
   83 /*
   84  * Node locking definitions.
   85  */
   86 typedef struct {
   87         char            name[16];               /* e.g. "ath0_node_lock" */
   88         struct mtx      mtx;
   89 } ieee80211_node_lock_t;
   90 #define IEEE80211_NODE_LOCK_INIT(_nt, _name) do {                       \
   91         ieee80211_node_lock_t *nl = &(_nt)->nt_nodelock;                \
   92         snprintf(nl->name, sizeof(nl->name), "%s_node_lock", _name);    \
   93         mtx_init(&nl->mtx, nl->name, NULL, MTX_DEF | MTX_RECURSE);      \
   94 } while (0)
   95 #define IEEE80211_NODE_LOCK_OBJ(_nt)    (&(_nt)->nt_nodelock.mtx)
   96 #define IEEE80211_NODE_LOCK_DESTROY(_nt) \
   97         mtx_destroy(IEEE80211_NODE_LOCK_OBJ(_nt))
   98 #define IEEE80211_NODE_LOCK(_nt) \
   99         mtx_lock(IEEE80211_NODE_LOCK_OBJ(_nt))
  100 #define IEEE80211_NODE_IS_LOCKED(_nt) \
  101         mtx_owned(IEEE80211_NODE_LOCK_OBJ(_nt))
  102 #define IEEE80211_NODE_UNLOCK(_nt) \
  103         mtx_unlock(IEEE80211_NODE_LOCK_OBJ(_nt))
  104 #define IEEE80211_NODE_LOCK_ASSERT(_nt) \
  105         mtx_assert(IEEE80211_NODE_LOCK_OBJ(_nt), MA_OWNED)
  106 
  107 /*
  108  * Node table iteration locking definitions; this protects the
  109  * scan generation # used to iterate over the station table
  110  * while grabbing+releasing the node lock.
  111  */
  112 typedef struct {
  113         char            name[16];               /* e.g. "ath0_scan_lock" */
  114         struct mtx      mtx;
  115 } ieee80211_scan_lock_t;
  116 #define IEEE80211_NODE_ITERATE_LOCK_INIT(_nt, _name) do {               \
  117         ieee80211_scan_lock_t *sl = &(_nt)->nt_scanlock;                \
  118         snprintf(sl->name, sizeof(sl->name), "%s_scan_lock", _name);    \
  119         mtx_init(&sl->mtx, sl->name, NULL, MTX_DEF);                    \
  120 } while (0)
  121 #define IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt)    (&(_nt)->nt_scanlock.mtx)
  122 #define IEEE80211_NODE_ITERATE_LOCK_DESTROY(_nt) \
  123         mtx_destroy(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
  124 #define IEEE80211_NODE_ITERATE_LOCK(_nt) \
  125         mtx_lock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
  126 #define IEEE80211_NODE_ITERATE_UNLOCK(_nt) \
  127         mtx_unlock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
  128 
  129 /*
  130  * Power-save queue definitions. 
  131  */
  132 typedef struct mtx ieee80211_psq_lock_t;
  133 #define IEEE80211_PSQ_INIT(_psq, _name) \
  134         mtx_init(&(_psq)->psq_lock, _name, "802.11 ps q", MTX_DEF)
  135 #define IEEE80211_PSQ_DESTROY(_psq)     mtx_destroy(&(_psq)->psq_lock)
  136 #define IEEE80211_PSQ_LOCK(_psq)        mtx_lock(&(_psq)->psq_lock)
  137 #define IEEE80211_PSQ_UNLOCK(_psq)      mtx_unlock(&(_psq)->psq_lock)
  138 
  139 #ifndef IF_PREPEND_LIST
  140 #define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {        \
  141         (mtail)->m_nextpkt = (ifq)->ifq_head;                   \
  142         if ((ifq)->ifq_tail == NULL)                            \
  143                 (ifq)->ifq_tail = (mtail);                      \
  144         (ifq)->ifq_head = (mhead);                              \
  145         (ifq)->ifq_len += (mcount);                             \
  146 } while (0)
  147 #define IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {         \
  148         IF_LOCK(ifq);                                           \
  149         _IF_PREPEND_LIST(ifq, mhead, mtail, mcount);            \
  150         IF_UNLOCK(ifq);                                         \
  151 } while (0)
  152 #endif /* IF_PREPEND_LIST */
  153  
  154 /*
  155  * Age queue definitions.
  156  */
  157 typedef struct mtx ieee80211_ageq_lock_t;
  158 #define IEEE80211_AGEQ_INIT(_aq, _name) \
  159         mtx_init(&(_aq)->aq_lock, _name, "802.11 age q", MTX_DEF)
  160 #define IEEE80211_AGEQ_DESTROY(_aq)     mtx_destroy(&(_aq)->aq_lock)
  161 #define IEEE80211_AGEQ_LOCK(_aq)        mtx_lock(&(_aq)->aq_lock)
  162 #define IEEE80211_AGEQ_UNLOCK(_aq)      mtx_unlock(&(_aq)->aq_lock)
  163 
  164 /*
  165  * 802.1x MAC ACL database locking definitions.
  166  */
  167 typedef struct mtx acl_lock_t;
  168 #define ACL_LOCK_INIT(_as, _name) \
  169         mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF)
  170 #define ACL_LOCK_DESTROY(_as)           mtx_destroy(&(_as)->as_lock)
  171 #define ACL_LOCK(_as)                   mtx_lock(&(_as)->as_lock)
  172 #define ACL_UNLOCK(_as)                 mtx_unlock(&(_as)->as_lock)
  173 #define ACL_LOCK_ASSERT(_as) \
  174         mtx_assert((&(_as)->as_lock), MA_OWNED)
  175 
  176 /*
  177  * Scan table definitions.
  178  */
  179 typedef struct mtx ieee80211_scan_table_lock_t;
  180 #define IEEE80211_SCAN_TABLE_LOCK_INIT(_st, _name) \
  181         mtx_init(&(_st)->st_lock, _name, "802.11 scan table", MTX_DEF)
  182 #define IEEE80211_SCAN_TABLE_LOCK_DESTROY(_st)  mtx_destroy(&(_st)->st_lock)
  183 #define IEEE80211_SCAN_TABLE_LOCK(_st)          mtx_lock(&(_st)->st_lock)
  184 #define IEEE80211_SCAN_TABLE_UNLOCK(_st)        mtx_unlock(&(_st)->st_lock)
  185 
  186 /*
  187  * Node reference counting definitions.
  188  *
  189  * ieee80211_node_initref       initialize the reference count to 1
  190  * ieee80211_node_incref        add a reference
  191  * ieee80211_node_decref        remove a reference
  192  * ieee80211_node_dectestref    remove a reference and return 1 if this
  193  *                              is the last reference, otherwise 0
  194  * ieee80211_node_refcnt        reference count for printing (only)
  195  */
  196 #include <machine/atomic.h>
  197 
  198 #define ieee80211_node_initref(_ni) \
  199         do { ((_ni)->ni_refcnt = 1); } while (0)
  200 #define ieee80211_node_incref(_ni) \
  201         atomic_add_int(&(_ni)->ni_refcnt, 1)
  202 #define ieee80211_node_decref(_ni) \
  203         atomic_subtract_int(&(_ni)->ni_refcnt, 1)
  204 struct ieee80211_node;
  205 int     ieee80211_node_dectestref(struct ieee80211_node *ni);
  206 #define ieee80211_node_refcnt(_ni)      (_ni)->ni_refcnt
  207 
  208 struct ifqueue;
  209 struct ieee80211vap;
  210 void    ieee80211_drain_ifq(struct ifqueue *);
  211 void    ieee80211_flush_ifq(struct ifqueue *, struct ieee80211vap *);
  212 
  213 void    ieee80211_vap_destroy(struct ieee80211vap *);
  214 
  215 #define IFNET_IS_UP_RUNNING(_ifp) \
  216         (((_ifp)->if_flags & IFF_UP) && \
  217          ((_ifp)->if_drv_flags & IFF_DRV_RUNNING))
  218 
  219 #define msecs_to_ticks(ms)      (((ms)*hz)/1000)
  220 #define ticks_to_msecs(t)       (1000*(t) / hz)
  221 #define ticks_to_secs(t)        ((t) / hz)
  222 #define time_after(a,b)         ((long)(b) - (long)(a) < 0)
  223 #define time_before(a,b)        time_after(b,a)
  224 #define time_after_eq(a,b)      ((long)(a) - (long)(b) >= 0)
  225 #define time_before_eq(a,b)     time_after_eq(b,a)
  226 
  227 struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen);
  228 
  229 /* tx path usage */
  230 #define M_ENCAP         M_PROTO1                /* 802.11 encap done */
  231 #define M_EAPOL         M_PROTO3                /* PAE/EAPOL frame */
  232 #define M_PWR_SAV       M_PROTO4                /* bypass PS handling */
  233 #define M_MORE_DATA     M_PROTO5                /* more data frames to follow */
  234 #define M_FF            M_PROTO6                /* fast frame */
  235 #define M_TXCB          M_PROTO7                /* do tx complete callback */
  236 #define M_AMPDU_MPDU    M_PROTO8                /* ok for A-MPDU aggregation */
  237 
  238 /*
  239  * FreeBSD-HEAD from 1000046 retired M_*FRAG* flags and turned them
  240  * into header flags instead.  So, we use the new protocol-specific
  241  * flags.
  242  *
  243  * Earlier FreeBSD versions overload M_FRAG, M_FIRSTFRAG and M_LASTFRAG.
  244  *
  245  * XXX TODO: rename these fields so there are no namespace clashes!
  246  */
  247 #if __FreeBSD_version >= 1000046
  248 #define M_FRAG          M_PROTO9                /* frame fragmentation */
  249 #define M_FIRSTFRAG     M_PROTO10               /* first frame fragment */
  250 #define M_LASTFRAG      M_PROTO11               /* last frame fragment */
  251 #endif
  252 
  253 #define M_80211_TX \
  254         (M_ENCAP|M_EAPOL|M_PWR_SAV|M_MORE_DATA|M_FF|M_TXCB| \
  255          M_AMPDU_MPDU|M_FRAG|M_FIRSTFRAG|M_LASTFRAG)
  256 
  257 /* rx path usage */
  258 #define M_AMPDU         M_PROTO1                /* A-MPDU subframe */
  259 #define M_WEP           M_PROTO2                /* WEP done by hardware */
  260 #if 0
  261 #define M_AMPDU_MPDU    M_PROTO8                /* A-MPDU re-order done */
  262 #endif
  263 #define M_80211_RX      (M_AMPDU|M_WEP|M_AMPDU_MPDU)
  264 
  265 #if __FreeBSD_version >= 1000046
  266 #define IEEE80211_MBUF_TX_FLAG_BITS \
  267         M_FLAG_BITS \
  268         "\15M_ENCAP\17M_EAPOL\20M_PWR_SAV\21M_MORE_DATA\22M_FF\23M_TXCB" \
  269         "\24M_AMPDU_MPDU\25M_FRAG\26M_FIRSTFRAG\27M_LASTFRAG"
  270 #else
  271 /* There aren't any flag bits available for versions before this */
  272 /* XXX TODO: implement M_FLAG_BITS for this! */
  273 #define IEEE80211_MBUF_TX_FLAG_BITS \
  274         "\15M_ENCAP\17M_EAPOL\20M_PWR_SAV\21M_MORE_DATA\22M_FF\23M_TXCB" \
  275         "\24M_AMPDU_MPDU"
  276 #endif
  277 
  278 #define IEEE80211_MBUF_RX_FLAG_BITS \
  279         M_FLAG_BITS \
  280         "\15M_AMPDU\16M_WEP\24M_AMPDU_MPDU"
  281 
  282 /*
  283  * Store WME access control bits in the vlan tag.
  284  * This is safe since it's done after the packet is classified
  285  * (where we use any previous tag) and because it's passed
  286  * directly in to the driver and there's no chance someone
  287  * else will clobber them on us.
  288  */
  289 #define M_WME_SETAC(m, ac) \
  290         ((m)->m_pkthdr.ether_vtag = (ac))
  291 #define M_WME_GETAC(m)  ((m)->m_pkthdr.ether_vtag)
  292 
  293 /*
  294  * Mbufs on the power save queue are tagged with an age and
  295  * timed out.  We reuse the hardware checksum field in the
  296  * mbuf packet header to store this data.
  297  */
  298 #define M_AGE_SET(m,v)          (m->m_pkthdr.csum_data = v)
  299 #define M_AGE_GET(m)            (m->m_pkthdr.csum_data)
  300 #define M_AGE_SUB(m,adj)        (m->m_pkthdr.csum_data -= adj)
  301 
  302 /*
  303  * Store the sequence number.
  304  */
  305 #define M_SEQNO_SET(m, seqno) \
  306         ((m)->m_pkthdr.tso_segsz = (seqno))
  307 #define M_SEQNO_GET(m)  ((m)->m_pkthdr.tso_segsz)
  308 
  309 #define MTAG_ABI_NET80211       1132948340      /* net80211 ABI */
  310 
  311 struct ieee80211_cb {
  312         void    (*func)(struct ieee80211_node *, void *, int status);
  313         void    *arg;
  314 };
  315 #define NET80211_TAG_CALLBACK   0       /* xmit complete callback */
  316 int     ieee80211_add_callback(struct mbuf *m,
  317                 void (*func)(struct ieee80211_node *, void *, int), void *arg);
  318 void    ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int);
  319 
  320 struct ieee80211com;
  321 int     ieee80211_parent_xmitpkt(struct ieee80211com *, struct mbuf *);
  322 int     ieee80211_vap_xmitpkt(struct ieee80211vap *, struct mbuf *);
  323 
  324 void    get_random_bytes(void *, size_t);
  325 
  326 void    ieee80211_sysctl_attach(struct ieee80211com *);
  327 void    ieee80211_sysctl_detach(struct ieee80211com *);
  328 void    ieee80211_sysctl_vattach(struct ieee80211vap *);
  329 void    ieee80211_sysctl_vdetach(struct ieee80211vap *);
  330 
  331 SYSCTL_DECL(_net_wlan);
  332 int     ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS);
  333 
  334 void    ieee80211_load_module(const char *);
  335 
  336 /*
  337  * A "policy module" is an adjunct module to net80211 that provides
  338  * functionality that typically includes policy decisions.  This
  339  * modularity enables extensibility and vendor-supplied functionality.
  340  */
  341 #define _IEEE80211_POLICY_MODULE(policy, name, version)                 \
  342 typedef void (*policy##_setup)(int);                                    \
  343 SET_DECLARE(policy##_set, policy##_setup);                              \
  344 static int                                                              \
  345 wlan_##name##_modevent(module_t mod, int type, void *unused)            \
  346 {                                                                       \
  347         policy##_setup * const *iter, f;                                \
  348         switch (type) {                                                 \
  349         case MOD_LOAD:                                                  \
  350                 SET_FOREACH(iter, policy##_set) {                       \
  351                         f = (void*) *iter;                              \
  352                         f(type);                                        \
  353                 }                                                       \
  354                 return 0;                                               \
  355         case MOD_UNLOAD:                                                \
  356         case MOD_QUIESCE:                                               \
  357                 if (nrefs) {                                            \
  358                         printf("wlan_##name: still in use (%u dynamic refs)\n",\
  359                                 nrefs);                                 \
  360                         return EBUSY;                                   \
  361                 }                                                       \
  362                 if (type == MOD_UNLOAD) {                               \
  363                         SET_FOREACH(iter, policy##_set) {               \
  364                                 f = (void*) *iter;                      \
  365                                 f(type);                                \
  366                         }                                               \
  367                 }                                                       \
  368                 return 0;                                               \
  369         }                                                               \
  370         return EINVAL;                                                  \
  371 }                                                                       \
  372 static moduledata_t name##_mod = {                                      \
  373         "wlan_" #name,                                                  \
  374         wlan_##name##_modevent,                                         \
  375         0                                                               \
  376 };                                                                      \
  377 DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
  378 MODULE_VERSION(wlan_##name, version);                                   \
  379 MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1)
  380 
  381 /*
  382  * Crypto modules implement cipher support.
  383  */
  384 #define IEEE80211_CRYPTO_MODULE(name, version)                          \
  385 _IEEE80211_POLICY_MODULE(crypto, name, version);                        \
  386 static void                                                             \
  387 name##_modevent(int type)                                               \
  388 {                                                                       \
  389         if (type == MOD_LOAD)                                           \
  390                 ieee80211_crypto_register(&name);                       \
  391         else                                                            \
  392                 ieee80211_crypto_unregister(&name);                     \
  393 }                                                                       \
  394 TEXT_SET(crypto##_set, name##_modevent)
  395 
  396 /*
  397  * Scanner modules provide scanning policy.
  398  */
  399 #define IEEE80211_SCANNER_MODULE(name, version)                         \
  400         _IEEE80211_POLICY_MODULE(scanner, name, version)
  401 
  402 #define IEEE80211_SCANNER_ALG(name, alg, v)                             \
  403 static void                                                             \
  404 name##_modevent(int type)                                               \
  405 {                                                                       \
  406         if (type == MOD_LOAD)                                           \
  407                 ieee80211_scanner_register(alg, &v);                    \
  408         else                                                            \
  409                 ieee80211_scanner_unregister(alg, &v);                  \
  410 }                                                                       \
  411 TEXT_SET(scanner_set, name##_modevent);                                 \
  412 
  413 /*
  414  * ACL modules implement acl policy.
  415  */
  416 #define IEEE80211_ACL_MODULE(name, alg, version)                        \
  417 _IEEE80211_POLICY_MODULE(acl, name, version);                           \
  418 static void                                                             \
  419 alg##_modevent(int type)                                                \
  420 {                                                                       \
  421         if (type == MOD_LOAD)                                           \
  422                 ieee80211_aclator_register(&alg);                       \
  423         else                                                            \
  424                 ieee80211_aclator_unregister(&alg);                     \
  425 }                                                                       \
  426 TEXT_SET(acl_set, alg##_modevent);                                      \
  427 
  428 /*
  429  * Authenticator modules handle 802.1x/WPA authentication.
  430  */
  431 #define IEEE80211_AUTH_MODULE(name, version)                            \
  432         _IEEE80211_POLICY_MODULE(auth, name, version)
  433 
  434 #define IEEE80211_AUTH_ALG(name, alg, v)                                \
  435 static void                                                             \
  436 name##_modevent(int type)                                               \
  437 {                                                                       \
  438         if (type == MOD_LOAD)                                           \
  439                 ieee80211_authenticator_register(alg, &v);              \
  440         else                                                            \
  441                 ieee80211_authenticator_unregister(alg);                \
  442 }                                                                       \
  443 TEXT_SET(auth_set, name##_modevent)
  444 
  445 /*
  446  * Rate control modules provide tx rate control support.
  447  */
  448 #define IEEE80211_RATECTL_MODULE(alg, version)                          \
  449         _IEEE80211_POLICY_MODULE(ratectl, alg, version);                \
  450 
  451 #define IEEE80211_RATECTL_ALG(name, alg, v)                             \
  452 static void                                                             \
  453 alg##_modevent(int type)                                                \
  454 {                                                                       \
  455         if (type == MOD_LOAD)                                           \
  456                 ieee80211_ratectl_register(alg, &v);                    \
  457         else                                                            \
  458                 ieee80211_ratectl_unregister(alg);                      \
  459 }                                                                       \
  460 TEXT_SET(ratectl##_set, alg##_modevent)
  461 
  462 struct ieee80211req;
  463 typedef int ieee80211_ioctl_getfunc(struct ieee80211vap *,
  464     struct ieee80211req *);
  465 SET_DECLARE(ieee80211_ioctl_getset, ieee80211_ioctl_getfunc);
  466 #define IEEE80211_IOCTL_GET(_name, _get) TEXT_SET(ieee80211_ioctl_getset, _get)
  467 
  468 typedef int ieee80211_ioctl_setfunc(struct ieee80211vap *,
  469     struct ieee80211req *);
  470 SET_DECLARE(ieee80211_ioctl_setset, ieee80211_ioctl_setfunc);
  471 #define IEEE80211_IOCTL_SET(_name, _set) TEXT_SET(ieee80211_ioctl_setset, _set)
  472 #endif /* _KERNEL */
  473 
  474 /* XXX this stuff belongs elsewhere */
  475 /*
  476  * Message formats for messages from the net80211 layer to user
  477  * applications via the routing socket.  These messages are appended
  478  * to an if_announcemsghdr structure.
  479  */
  480 struct ieee80211_join_event {
  481         uint8_t         iev_addr[6];
  482 };
  483 
  484 struct ieee80211_leave_event {
  485         uint8_t         iev_addr[6];
  486 };
  487 
  488 struct ieee80211_replay_event {
  489         uint8_t         iev_src[6];     /* src MAC */
  490         uint8_t         iev_dst[6];     /* dst MAC */
  491         uint8_t         iev_cipher;     /* cipher type */
  492         uint8_t         iev_keyix;      /* key id/index */
  493         uint64_t        iev_keyrsc;     /* RSC from key */
  494         uint64_t        iev_rsc;        /* RSC from frame */
  495 };
  496 
  497 struct ieee80211_michael_event {
  498         uint8_t         iev_src[6];     /* src MAC */
  499         uint8_t         iev_dst[6];     /* dst MAC */
  500         uint8_t         iev_cipher;     /* cipher type */
  501         uint8_t         iev_keyix;      /* key id/index */
  502 };
  503 
  504 struct ieee80211_wds_event {
  505         uint8_t         iev_addr[6];
  506 };
  507 
  508 struct ieee80211_csa_event {
  509         uint32_t        iev_flags;      /* channel flags */
  510         uint16_t        iev_freq;       /* setting in Mhz */
  511         uint8_t         iev_ieee;       /* IEEE channel number */
  512         uint8_t         iev_mode;       /* CSA mode */
  513         uint8_t         iev_count;      /* CSA count */
  514 };
  515 
  516 struct ieee80211_cac_event {
  517         uint32_t        iev_flags;      /* channel flags */
  518         uint16_t        iev_freq;       /* setting in Mhz */
  519         uint8_t         iev_ieee;       /* IEEE channel number */
  520         /* XXX timestamp? */
  521         uint8_t         iev_type;       /* IEEE80211_NOTIFY_CAC_* */
  522 };
  523 
  524 struct ieee80211_radar_event {
  525         uint32_t        iev_flags;      /* channel flags */
  526         uint16_t        iev_freq;       /* setting in Mhz */
  527         uint8_t         iev_ieee;       /* IEEE channel number */
  528         /* XXX timestamp? */
  529 };
  530 
  531 struct ieee80211_auth_event {
  532         uint8_t         iev_addr[6];
  533 };
  534 
  535 struct ieee80211_deauth_event {
  536         uint8_t         iev_addr[6];
  537 };
  538 
  539 struct ieee80211_country_event {
  540         uint8_t         iev_addr[6];
  541         uint8_t         iev_cc[2];      /* ISO country code */
  542 };
  543 
  544 struct ieee80211_radio_event {
  545         uint8_t         iev_state;      /* 1 on, 0 off */
  546 };
  547 
  548 #define RTM_IEEE80211_ASSOC     100     /* station associate (bss mode) */
  549 #define RTM_IEEE80211_REASSOC   101     /* station re-associate (bss mode) */
  550 #define RTM_IEEE80211_DISASSOC  102     /* station disassociate (bss mode) */
  551 #define RTM_IEEE80211_JOIN      103     /* station join (ap mode) */
  552 #define RTM_IEEE80211_LEAVE     104     /* station leave (ap mode) */
  553 #define RTM_IEEE80211_SCAN      105     /* scan complete, results available */
  554 #define RTM_IEEE80211_REPLAY    106     /* sequence counter replay detected */
  555 #define RTM_IEEE80211_MICHAEL   107     /* Michael MIC failure detected */
  556 #define RTM_IEEE80211_REJOIN    108     /* station re-associate (ap mode) */
  557 #define RTM_IEEE80211_WDS       109     /* WDS discovery (ap mode) */
  558 #define RTM_IEEE80211_CSA       110     /* Channel Switch Announcement event */
  559 #define RTM_IEEE80211_RADAR     111     /* radar event */
  560 #define RTM_IEEE80211_CAC       112     /* Channel Availability Check event */
  561 #define RTM_IEEE80211_DEAUTH    113     /* station deauthenticate */
  562 #define RTM_IEEE80211_AUTH      114     /* station authenticate (ap mode) */
  563 #define RTM_IEEE80211_COUNTRY   115     /* discovered country code (sta mode) */
  564 #define RTM_IEEE80211_RADIO     116     /* RF kill switch state change */
  565 
  566 /*
  567  * Structure prepended to raw packets sent through the bpf
  568  * interface when set to DLT_IEEE802_11_RADIO.  This allows
  569  * user applications to specify pretty much everything in
  570  * an Atheros tx descriptor.  XXX need to generalize.
  571  *
  572  * XXX cannot be more than 14 bytes as it is copied to a sockaddr's
  573  * XXX sa_data area.
  574  */
  575 struct ieee80211_bpf_params {
  576         uint8_t         ibp_vers;       /* version */
  577 #define IEEE80211_BPF_VERSION   0
  578         uint8_t         ibp_len;        /* header length in bytes */
  579         uint8_t         ibp_flags;
  580 #define IEEE80211_BPF_SHORTPRE  0x01    /* tx with short preamble */
  581 #define IEEE80211_BPF_NOACK     0x02    /* tx with no ack */
  582 #define IEEE80211_BPF_CRYPTO    0x04    /* tx with h/w encryption */
  583 #define IEEE80211_BPF_FCS       0x10    /* frame incldues FCS */
  584 #define IEEE80211_BPF_DATAPAD   0x20    /* frame includes data padding */
  585 #define IEEE80211_BPF_RTS       0x40    /* tx with RTS/CTS */
  586 #define IEEE80211_BPF_CTS       0x80    /* tx with CTS only */
  587         uint8_t         ibp_pri;        /* WME/WMM AC+tx antenna */
  588         uint8_t         ibp_try0;       /* series 1 try count */
  589         uint8_t         ibp_rate0;      /* series 1 IEEE tx rate */
  590         uint8_t         ibp_power;      /* tx power (device units) */
  591         uint8_t         ibp_ctsrate;    /* IEEE tx rate for CTS */
  592         uint8_t         ibp_try1;       /* series 2 try count */
  593         uint8_t         ibp_rate1;      /* series 2 IEEE tx rate */
  594         uint8_t         ibp_try2;       /* series 3 try count */
  595         uint8_t         ibp_rate2;      /* series 3 IEEE tx rate */
  596         uint8_t         ibp_try3;       /* series 4 try count */
  597         uint8_t         ibp_rate3;      /* series 4 IEEE tx rate */
  598 };
  599 #endif /* _NET80211_IEEE80211_FREEBSD_H_ */

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