sys/net80211/ieee80211_freebsd.h

   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  * $FreeBSD$
  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/systm.h>
  33 #include <sys/counter.h>
  34 #include <sys/lock.h>
  35 #include <sys/mutex.h>
  36 #include <sys/rwlock.h>
  37 #include <sys/sysctl.h>
  38 #include <sys/taskqueue.h>
  39
  40 /*
  41  * Common state locking definitions.
  42  */
  43 typedef struct {
  44         char            name[16];               /* e.g. "ath0_com_lock" */
  45         struct mtx      mtx;
  46 } ieee80211_com_lock_t;
  47 #define IEEE80211_LOCK_INIT(_ic, _name) do {                            \
  48         ieee80211_com_lock_t *cl = &(_ic)->ic_comlock;                  \
  49         snprintf(cl->name, sizeof(cl->name), "%s_com_lock", _name);     \
  50         mtx_init(&cl->mtx, cl->name, NULL, MTX_DEF | MTX_RECURSE);      \
  51 } while (0)
  52 #define IEEE80211_LOCK_OBJ(_ic) (&(_ic)->ic_comlock.mtx)
  53 #define IEEE80211_LOCK_DESTROY(_ic) mtx_destroy(IEEE80211_LOCK_OBJ(_ic))
  54 #define IEEE80211_LOCK(_ic)        mtx_lock(IEEE80211_LOCK_OBJ(_ic))
  55 #define IEEE80211_UNLOCK(_ic)      mtx_unlock(IEEE80211_LOCK_OBJ(_ic))
  56 #define IEEE80211_LOCK_ASSERT(_ic) \
  57         mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_OWNED)
  58 #define IEEE80211_UNLOCK_ASSERT(_ic) \
  59         mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_NOTOWNED)
  60
  61 /*
  62  * Transmit lock.
  63  *
  64  * This is a (mostly) temporary lock designed to serialise all of the
  65  * transmission operations throughout the stack.
  66  */
  67 typedef struct {
  68         char            name[16];               /* e.g. "ath0_tx_lock" */
  69         struct mtx      mtx;
  70 } ieee80211_tx_lock_t;
  71 #define IEEE80211_TX_LOCK_INIT(_ic, _name) do {                         \
  72         ieee80211_tx_lock_t *cl = &(_ic)->ic_txlock;                    \
  73         snprintf(cl->name, sizeof(cl->name), "%s_tx_lock", _name);      \
  74         mtx_init(&cl->mtx, cl->name, NULL, MTX_DEF);    \
  75 } while (0)
  76 #define IEEE80211_TX_LOCK_OBJ(_ic)      (&(_ic)->ic_txlock.mtx)
  77 #define IEEE80211_TX_LOCK_DESTROY(_ic) mtx_destroy(IEEE80211_TX_LOCK_OBJ(_ic))
  78 #define IEEE80211_TX_LOCK(_ic)     mtx_lock(IEEE80211_TX_LOCK_OBJ(_ic))
  79 #define IEEE80211_TX_UNLOCK(_ic)           mtx_unlock(IEEE80211_TX_LOCK_OBJ(_ic))
  80 #define IEEE80211_TX_LOCK_ASSERT(_ic) \
  81         mtx_assert(IEEE80211_TX_LOCK_OBJ(_ic), MA_OWNED)
  82 #define IEEE80211_TX_UNLOCK_ASSERT(_ic) \
  83         mtx_assert(IEEE80211_TX_LOCK_OBJ(_ic), MA_NOTOWNED)
  84
  85 /*
  86  * Stageq / ni_tx_superg lock
  87  */
  88 typedef struct {
  89         char            name[16];               /* e.g. "ath0_ff_lock" */
  90         struct mtx      mtx;
  91 } ieee80211_ff_lock_t;
  92 #define IEEE80211_FF_LOCK_INIT(_ic, _name) do {                         \
  93         ieee80211_ff_lock_t *fl = &(_ic)->ic_fflock;                    \
  94         snprintf(fl->name, sizeof(fl->name), "%s_ff_lock", _name);      \
  95         mtx_init(&fl->mtx, fl->name, NULL, MTX_DEF);                    \
  96 } while (0)
  97 #define IEEE80211_FF_LOCK_OBJ(_ic)      (&(_ic)->ic_fflock.mtx)
  98 #define IEEE80211_FF_LOCK_DESTROY(_ic)  mtx_destroy(IEEE80211_FF_LOCK_OBJ(_ic))
  99 #define IEEE80211_FF_LOCK(_ic)          mtx_lock(IEEE80211_FF_LOCK_OBJ(_ic))
 100 #define IEEE80211_FF_UNLOCK(_ic)        mtx_unlock(IEEE80211_FF_LOCK_OBJ(_ic))
 101 #define IEEE80211_FF_LOCK_ASSERT(_ic) \
 102         mtx_assert(IEEE80211_FF_LOCK_OBJ(_ic), MA_OWNED)
 103
 104 /*
 105  * Node locking definitions.
 106  */
 107 typedef struct {
 108         char            name[16];               /* e.g. "ath0_node_lock" */
 109         struct mtx      mtx;
 110 } ieee80211_node_lock_t;
 111 #define IEEE80211_NODE_LOCK_INIT(_nt, _name) do {                       \
 112         ieee80211_node_lock_t *nl = &(_nt)->nt_nodelock;                \
 113         snprintf(nl->name, sizeof(nl->name), "%s_node_lock", _name);    \
 114         mtx_init(&nl->mtx, nl->name, NULL, MTX_DEF | MTX_RECURSE);      \
 115 } while (0)
 116 #define IEEE80211_NODE_LOCK_OBJ(_nt)    (&(_nt)->nt_nodelock.mtx)
 117 #define IEEE80211_NODE_LOCK_DESTROY(_nt) \
 118         mtx_destroy(IEEE80211_NODE_LOCK_OBJ(_nt))
 119 #define IEEE80211_NODE_LOCK(_nt) \
 120         mtx_lock(IEEE80211_NODE_LOCK_OBJ(_nt))
 121 #define IEEE80211_NODE_IS_LOCKED(_nt) \
 122         mtx_owned(IEEE80211_NODE_LOCK_OBJ(_nt))
 123 #define IEEE80211_NODE_UNLOCK(_nt) \
 124         mtx_unlock(IEEE80211_NODE_LOCK_OBJ(_nt))
 125 #define IEEE80211_NODE_LOCK_ASSERT(_nt) \
 126         mtx_assert(IEEE80211_NODE_LOCK_OBJ(_nt), MA_OWNED)
 127
 128 /*
 129  * Power-save queue definitions.
 130  */
 131 typedef struct mtx ieee80211_psq_lock_t;
 132 #define IEEE80211_PSQ_INIT(_psq, _name) \
 133         mtx_init(&(_psq)->psq_lock, _name, "802.11 ps q", MTX_DEF)
 134 #define IEEE80211_PSQ_DESTROY(_psq)     mtx_destroy(&(_psq)->psq_lock)
 135 #define IEEE80211_PSQ_LOCK(_psq)        mtx_lock(&(_psq)->psq_lock)
 136 #define IEEE80211_PSQ_UNLOCK(_psq)      mtx_unlock(&(_psq)->psq_lock)
 137
 138 #ifndef IF_PREPEND_LIST
 139 #define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {        \
 140         (mtail)->m_nextpkt = (ifq)->ifq_head;                   \
 141         if ((ifq)->ifq_tail == NULL)                            \
 142                 (ifq)->ifq_tail = (mtail);                      \
 143         (ifq)->ifq_head = (mhead);                              \
 144         (ifq)->ifq_len += (mcount);                             \
 145 } while (0)
 146 #define IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do {         \
 147         IF_LOCK(ifq);                                           \
 148         _IF_PREPEND_LIST(ifq, mhead, mtail, mcount);            \
 149         IF_UNLOCK(ifq);                                         \
 150 } while (0)
 151 #endif /* IF_PREPEND_LIST */
 152
 153 /*
 154  * Age queue definitions.
 155  */
 156 typedef struct mtx ieee80211_ageq_lock_t;
 157 #define IEEE80211_AGEQ_INIT(_aq, _name) \
 158         mtx_init(&(_aq)->aq_lock, _name, "802.11 age q", MTX_DEF)
 159 #define IEEE80211_AGEQ_DESTROY(_aq)     mtx_destroy(&(_aq)->aq_lock)
 160 #define IEEE80211_AGEQ_LOCK(_aq)        mtx_lock(&(_aq)->aq_lock)
 161 #define IEEE80211_AGEQ_UNLOCK(_aq)      mtx_unlock(&(_aq)->aq_lock)
 162
 163 /*
 164  * 802.1x MAC ACL database locking definitions.
 165  */
 166 typedef struct mtx acl_lock_t;
 167 #define ACL_LOCK_INIT(_as, _name) \
 168         mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF)
 169 #define ACL_LOCK_DESTROY(_as)           mtx_destroy(&(_as)->as_lock)
 170 #define ACL_LOCK(_as)                   mtx_lock(&(_as)->as_lock)
 171 #define ACL_UNLOCK(_as)                 mtx_unlock(&(_as)->as_lock)
 172 #define ACL_LOCK_ASSERT(_as) \
 173         mtx_assert((&(_as)->as_lock), MA_OWNED)
 174
 175 /*
 176  * Scan table definitions.
 177  */
 178 typedef struct mtx ieee80211_scan_table_lock_t;
 179 #define IEEE80211_SCAN_TABLE_LOCK_INIT(_st, _name) \
 180         mtx_init(&(_st)->st_lock, _name, "802.11 scan table", MTX_DEF)
 181 #define IEEE80211_SCAN_TABLE_LOCK_DESTROY(_st)  mtx_destroy(&(_st)->st_lock)
 182 #define IEEE80211_SCAN_TABLE_LOCK(_st)          mtx_lock(&(_st)->st_lock)
 183 #define IEEE80211_SCAN_TABLE_UNLOCK(_st)        mtx_unlock(&(_st)->st_lock)
 184
 185 typedef struct mtx ieee80211_scan_iter_lock_t;
 186 #define IEEE80211_SCAN_ITER_LOCK_INIT(_st, _name) \
 187         mtx_init(&(_st)->st_scanlock, _name, "802.11 scangen", MTX_DEF)
 188 #define IEEE80211_SCAN_ITER_LOCK_DESTROY(_st)   mtx_destroy(&(_st)->st_scanlock)
 189 #define IEEE80211_SCAN_ITER_LOCK(_st)           mtx_lock(&(_st)->st_scanlock)
 190 #define IEEE80211_SCAN_ITER_UNLOCK(_st) mtx_unlock(&(_st)->st_scanlock)
 191
 192 /*
 193  * Mesh node/routing definitions.
 194  */
 195 typedef struct mtx ieee80211_rte_lock_t;
 196 #define MESH_RT_ENTRY_LOCK_INIT(_rt, _name) \
 197         mtx_init(&(rt)->rt_lock, _name, "802.11s route entry", MTX_DEF)
 198 #define MESH_RT_ENTRY_LOCK_DESTROY(_rt) \
 199         mtx_destroy(&(_rt)->rt_lock)
 200 #define MESH_RT_ENTRY_LOCK(rt)  mtx_lock(&(rt)->rt_lock)
 201 #define MESH_RT_ENTRY_LOCK_ASSERT(rt) mtx_assert(&(rt)->rt_lock, MA_OWNED)
 202 #define MESH_RT_ENTRY_UNLOCK(rt)        mtx_unlock(&(rt)->rt_lock)
 203
 204 typedef struct mtx ieee80211_rt_lock_t;
 205 #define MESH_RT_LOCK(ms)        mtx_lock(&(ms)->ms_rt_lock)
 206 #define MESH_RT_LOCK_ASSERT(ms) mtx_assert(&(ms)->ms_rt_lock, MA_OWNED)
 207 #define MESH_RT_UNLOCK(ms)      mtx_unlock(&(ms)->ms_rt_lock)
 208 #define MESH_RT_LOCK_INIT(ms, name) \
 209         mtx_init(&(ms)->ms_rt_lock, name, "802.11s routing table", MTX_DEF)
 210 #define MESH_RT_LOCK_DESTROY(ms) \
 211         mtx_destroy(&(ms)->ms_rt_lock)
 212
 213 /*
 214  * Node reference counting definitions.
 215  *
 216  * ieee80211_node_initref       initialize the reference count to 1
 217  * ieee80211_node_incref        add a reference
 218  * ieee80211_node_decref        remove a reference
 219  * ieee80211_node_dectestref    remove a reference and return 1 if this
 220  *                              is the last reference, otherwise 0
 221  * ieee80211_node_refcnt        reference count for printing (only)
 222  */
 223 #include <machine/atomic.h>
 224
 225 #define ieee80211_node_initref(_ni) \
 226         do { ((_ni)->ni_refcnt = 1); } while (0)
 227 #define ieee80211_node_incref(_ni) \
 228         atomic_add_int(&(_ni)->ni_refcnt, 1)
 229 #define ieee80211_node_decref(_ni) \
 230         atomic_subtract_int(&(_ni)->ni_refcnt, 1)
 231 struct ieee80211_node;
 232 int     ieee80211_node_dectestref(struct ieee80211_node *ni);
 233 #define ieee80211_node_refcnt(_ni)      (_ni)->ni_refcnt
 234
 235 struct ifqueue;
 236 struct ieee80211vap;
 237 void    ieee80211_drain_ifq(struct ifqueue *);
 238 void    ieee80211_flush_ifq(struct ifqueue *, struct ieee80211vap *);
 239
 240 void    ieee80211_vap_destroy(struct ieee80211vap *);
 241
 242 #define IFNET_IS_UP_RUNNING(_ifp) \
 243         (((_ifp)->if_flags & IFF_UP) && \
 244          ((_ifp)->if_drv_flags & IFF_DRV_RUNNING))
 245
 246 /* XXX TODO: cap these at 1, as hz may not be 1000 */
 247 #define msecs_to_ticks(ms)      (((ms)*hz)/1000)
 248 #define ticks_to_msecs(t)       (1000*(t) / hz)
 249 #define ticks_to_secs(t)        ((t) / hz)
 250
 251 #define ieee80211_time_after(a,b)       ((long)(b) - (long)(a) < 0)
 252 #define ieee80211_time_before(a,b)      ieee80211_time_after(b,a)
 253 #define ieee80211_time_after_eq(a,b)    ((long)(a) - (long)(b) >= 0)
 254 #define ieee80211_time_before_eq(a,b)   ieee80211_time_after_eq(b,a)
 255
 256 struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen);
 257
 258 /* tx path usage */
 259 #define M_ENCAP         M_PROTO1                /* 802.11 encap done */
 260 #define M_EAPOL         M_PROTO3                /* PAE/EAPOL frame */
 261 #define M_PWR_SAV       M_PROTO4                /* bypass PS handling */
 262 #define M_MORE_DATA     M_PROTO5                /* more data frames to follow */
 263 #define M_FF            M_PROTO6                /* fast frame / A-MSDU */
 264 #define M_TXCB          M_PROTO7                /* do tx complete callback */
 265 #define M_AMPDU_MPDU    M_PROTO8                /* ok for A-MPDU aggregation */
 266 #define M_FRAG          M_PROTO9                /* frame fragmentation */
 267 #define M_FIRSTFRAG     M_PROTO10               /* first frame fragment */
 268 #define M_LASTFRAG      M_PROTO11               /* last frame fragment */
 269
 270 #define M_80211_TX \
 271         (M_ENCAP|M_EAPOL|M_PWR_SAV|M_MORE_DATA|M_FF|M_TXCB| \
 272          M_AMPDU_MPDU|M_FRAG|M_FIRSTFRAG|M_LASTFRAG)
 273
 274 /* rx path usage */
 275 #define M_AMPDU         M_PROTO1                /* A-MPDU subframe */
 276 #define M_WEP           M_PROTO2                /* WEP done by hardware */
 277 #if 0
 278 #define M_AMPDU_MPDU    M_PROTO8                /* A-MPDU re-order done */
 279 #endif
 280 #define M_80211_RX      (M_AMPDU|M_WEP|M_AMPDU_MPDU)
 281
 282 #define IEEE80211_MBUF_TX_FLAG_BITS \
 283         M_FLAG_BITS \
 284         "\15M_ENCAP\17M_EAPOL\20M_PWR_SAV\21M_MORE_DATA\22M_FF\23M_TXCB" \
 285         "\24M_AMPDU_MPDU\25M_FRAG\26M_FIRSTFRAG\27M_LASTFRAG"
 286
 287 #define IEEE80211_MBUF_RX_FLAG_BITS \
 288         M_FLAG_BITS \
 289         "\15M_AMPDU\16M_WEP\24M_AMPDU_MPDU"
 290
 291 /*
 292  * Store WME access control bits in the vlan tag.
 293  * This is safe since it's done after the packet is classified
 294  * (where we use any previous tag) and because it's passed
 295  * directly in to the driver and there's no chance someone
 296  * else will clobber them on us.
 297  */
 298 #define M_WME_SETAC(m, ac) \
 299         ((m)->m_pkthdr.ether_vtag = (ac))
 300 #define M_WME_GETAC(m)  ((m)->m_pkthdr.ether_vtag)
 301
 302 /*
 303  * Mbufs on the power save queue are tagged with an age and
 304  * timed out.  We reuse the hardware checksum field in the
 305  * mbuf packet header to store this data.
 306  */
 307 #define M_AGE_SET(m,v)          (m->m_pkthdr.csum_data = v)
 308 #define M_AGE_GET(m)            (m->m_pkthdr.csum_data)
 309 #define M_AGE_SUB(m,adj)        (m->m_pkthdr.csum_data -= adj)
 310
 311 /*
 312  * Store the sequence number.
 313  */
 314 #define M_SEQNO_SET(m, seqno) \
 315         ((m)->m_pkthdr.tso_segsz = (seqno))
 316 #define M_SEQNO_GET(m)  ((m)->m_pkthdr.tso_segsz)
 317
 318 #define MTAG_ABI_NET80211       1132948340      /* net80211 ABI */
 319
 320 struct ieee80211_cb {
 321         void    (*func)(struct ieee80211_node *, void *, int status);
 322         void    *arg;
 323 };
 324 #define NET80211_TAG_CALLBACK   0       /* xmit complete callback */
 325 int     ieee80211_add_callback(struct mbuf *m,
 326                 void (*func)(struct ieee80211_node *, void *, int), void *arg);
 327 void    ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int);
 328
 329 #define NET80211_TAG_XMIT_PARAMS        1
 330 /* See below; this is after the bpf_params definition */
 331
 332 #define NET80211_TAG_RECV_PARAMS        2
 333
 334 struct ieee80211com;
 335 int     ieee80211_parent_xmitpkt(struct ieee80211com *, struct mbuf *);
 336 int     ieee80211_vap_xmitpkt(struct ieee80211vap *, struct mbuf *);
 337
 338 void    get_random_bytes(void *, size_t);
 339
 340 void    ieee80211_sysctl_attach(struct ieee80211com *);
 341 void    ieee80211_sysctl_detach(struct ieee80211com *);
 342 void    ieee80211_sysctl_vattach(struct ieee80211vap *);
 343 void    ieee80211_sysctl_vdetach(struct ieee80211vap *);
 344
 345 SYSCTL_DECL(_net_wlan);
 346 int     ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS);
 347
 348 void    ieee80211_load_module(const char *);
 349
 350 /*
 351  * A "policy module" is an adjunct module to net80211 that provides
 352  * functionality that typically includes policy decisions.  This
 353  * modularity enables extensibility and vendor-supplied functionality.
 354  */
 355 #define _IEEE80211_POLICY_MODULE(policy, name, version)                 \
 356 typedef void (*policy##_setup)(int);                                    \
 357 SET_DECLARE(policy##_set, policy##_setup);                              \
 358 static int                                                              \
 359 wlan_##name##_modevent(module_t mod, int type, void *unused)            \
 360 {                                                                       \
 361         policy##_setup * const *iter, f;                                \
 362         switch (type) {                                                 \
 363         case MOD_LOAD:                                                  \
 364                 SET_FOREACH(iter, policy##_set) {                       \
 365                         f = (void*) *iter;                              \
 366                         f(type);                                        \
 367                 }                                                       \
 368                 return 0;                                               \
 369         case MOD_UNLOAD:                                                \
 370         case MOD_QUIESCE:                                               \
 371                 if (nrefs) {                                            \
 372                         printf("wlan_" #name ": still in use "          \
 373                                 "(%u dynamic refs)\n", nrefs);          \
 374                         return EBUSY;                                   \
 375                 }                                                       \
 376                 if (type == MOD_UNLOAD) {                               \
 377                         SET_FOREACH(iter, policy##_set) {               \
 378                                 f = (void*) *iter;                      \
 379                                 f(type);                                \
 380                         }                                               \
 381                 }                                                       \
 382                 return 0;                                               \
 383         }                                                               \
 384         return EINVAL;                                                  \
 385 }                                                                       \
 386 static moduledata_t name##_mod = {                                      \
 387         "wlan_" #name,                                                  \
 388         wlan_##name##_modevent,                                         \
 389         0                                                               \
 390 };                                                                      \
 391 DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
 392 MODULE_VERSION(wlan_##name, version);                                   \
 393 MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1)
 394
 395 /*
 396  * Crypto modules implement cipher support.
 397  */
 398 #define IEEE80211_CRYPTO_MODULE(name, version)                          \
 399 _IEEE80211_POLICY_MODULE(crypto, name, version);                        \
 400 static void                                                             \
 401 name##_modevent(int type)                                               \
 402 {                                                                       \
 403         if (type == MOD_LOAD)                                           \
 404                 ieee80211_crypto_register(&name);                       \
 405         else                                                            \
 406                 ieee80211_crypto_unregister(&name);                     \
 407 }                                                                       \
 408 TEXT_SET(crypto##_set, name##_modevent)
 409
 410 /*
 411  * Scanner modules provide scanning policy.
 412  */
 413 #define IEEE80211_SCANNER_MODULE(name, version)                         \
 414         _IEEE80211_POLICY_MODULE(scanner, name, version)
 415
 416 #define IEEE80211_SCANNER_ALG(name, alg, v)                             \
 417 static void                                                             \
 418 name##_modevent(int type)                                               \
 419 {                                                                       \
 420         if (type == MOD_LOAD)                                           \
 421                 ieee80211_scanner_register(alg, &v);                    \
 422         else                                                            \
 423                 ieee80211_scanner_unregister(alg, &v);                  \
 424 }                                                                       \
 425 TEXT_SET(scanner_set, name##_modevent);                                 \
 426
 427 /*
 428  * ACL modules implement acl policy.
 429  */
 430 #define IEEE80211_ACL_MODULE(name, alg, version)                        \
 431 _IEEE80211_POLICY_MODULE(acl, name, version);                           \
 432 static void                                                             \
 433 alg##_modevent(int type)                                                \
 434 {                                                                       \
 435         if (type == MOD_LOAD)                                           \
 436                 ieee80211_aclator_register(&alg);                       \
 437         else                                                            \
 438                 ieee80211_aclator_unregister(&alg);                     \
 439 }                                                                       \
 440 TEXT_SET(acl_set, alg##_modevent);                                      \
 441
 442 /*
 443  * Authenticator modules handle 802.1x/WPA authentication.
 444  */
 445 #define IEEE80211_AUTH_MODULE(name, version)                            \
 446         _IEEE80211_POLICY_MODULE(auth, name, version)
 447
 448 #define IEEE80211_AUTH_ALG(name, alg, v)                                \
 449 static void                                                             \
 450 name##_modevent(int type)                                               \
 451 {                                                                       \
 452         if (type == MOD_LOAD)                                           \
 453                 ieee80211_authenticator_register(alg, &v);              \
 454         else                                                            \
 455                 ieee80211_authenticator_unregister(alg);                \
 456 }                                                                       \
 457 TEXT_SET(auth_set, name##_modevent)
 458
 459 /*
 460  * Rate control modules provide tx rate control support.
 461  */
 462 #define IEEE80211_RATECTL_MODULE(alg, version)                          \
 463         _IEEE80211_POLICY_MODULE(ratectl, alg, version);                \
 464
 465 #define IEEE80211_RATECTL_ALG(name, alg, v)                             \
 466 static void                                                             \
 467 alg##_modevent(int type)                                                \
 468 {                                                                       \
 469         if (type == MOD_LOAD)                                           \
 470                 ieee80211_ratectl_register(alg, &v);                    \
 471         else                                                            \
 472                 ieee80211_ratectl_unregister(alg);                      \
 473 }                                                                       \
 474 TEXT_SET(ratectl##_set, alg##_modevent)
 475
 476 struct ieee80211req;
 477 typedef int ieee80211_ioctl_getfunc(struct ieee80211vap *,
 478     struct ieee80211req *);
 479 SET_DECLARE(ieee80211_ioctl_getset, ieee80211_ioctl_getfunc);
 480 #define IEEE80211_IOCTL_GET(_name, _get) TEXT_SET(ieee80211_ioctl_getset, _get)
 481
 482 typedef int ieee80211_ioctl_setfunc(struct ieee80211vap *,
 483     struct ieee80211req *);
 484 SET_DECLARE(ieee80211_ioctl_setset, ieee80211_ioctl_setfunc);
 485 #define IEEE80211_IOCTL_SET(_name, _set) TEXT_SET(ieee80211_ioctl_setset, _set)
 486 #endif /* _KERNEL */
 487
 488 /* XXX this stuff belongs elsewhere */
 489 /*
 490  * Message formats for messages from the net80211 layer to user
 491  * applications via the routing socket.  These messages are appended
 492  * to an if_announcemsghdr structure.
 493  */
 494 struct ieee80211_join_event {
 495         uint8_t         iev_addr[6];
 496 };
 497
 498 struct ieee80211_leave_event {
 499         uint8_t         iev_addr[6];
 500 };
 501
 502 struct ieee80211_replay_event {
 503         uint8_t         iev_src[6];     /* src MAC */
 504         uint8_t         iev_dst[6];     /* dst MAC */
 505         uint8_t         iev_cipher;     /* cipher type */
 506         uint8_t         iev_keyix;      /* key id/index */
 507         uint64_t        iev_keyrsc;     /* RSC from key */
 508         uint64_t        iev_rsc;        /* RSC from frame */
 509 };
 510
 511 struct ieee80211_michael_event {
 512         uint8_t         iev_src[6];     /* src MAC */
 513         uint8_t         iev_dst[6];     /* dst MAC */
 514         uint8_t         iev_cipher;     /* cipher type */
 515         uint8_t         iev_keyix;      /* key id/index */
 516 };
 517
 518 struct ieee80211_wds_event {
 519         uint8_t         iev_addr[6];
 520 };
 521
 522 struct ieee80211_csa_event {
 523         uint32_t        iev_flags;      /* channel flags */
 524         uint16_t        iev_freq;       /* setting in Mhz */
 525         uint8_t         iev_ieee;       /* IEEE channel number */
 526         uint8_t         iev_mode;       /* CSA mode */
 527         uint8_t         iev_count;      /* CSA count */
 528 };
 529
 530 struct ieee80211_cac_event {
 531         uint32_t        iev_flags;      /* channel flags */
 532         uint16_t        iev_freq;       /* setting in Mhz */
 533         uint8_t         iev_ieee;       /* IEEE channel number */
 534         /* XXX timestamp? */
 535         uint8_t         iev_type;       /* IEEE80211_NOTIFY_CAC_* */
 536 };
 537
 538 struct ieee80211_radar_event {
 539         uint32_t        iev_flags;      /* channel flags */
 540         uint16_t        iev_freq;       /* setting in Mhz */
 541         uint8_t         iev_ieee;       /* IEEE channel number */
 542         /* XXX timestamp? */
 543 };
 544
 545 struct ieee80211_auth_event {
 546         uint8_t         iev_addr[6];
 547 };
 548
 549 struct ieee80211_deauth_event {
 550         uint8_t         iev_addr[6];
 551 };
 552
 553 struct ieee80211_country_event {
 554         uint8_t         iev_addr[6];
 555         uint8_t         iev_cc[2];      /* ISO country code */
 556 };
 557
 558 struct ieee80211_radio_event {
 559         uint8_t         iev_state;      /* 1 on, 0 off */
 560 };
 561
 562 #define RTM_IEEE80211_ASSOC     100     /* station associate (bss mode) */
 563 #define RTM_IEEE80211_REASSOC   101     /* station re-associate (bss mode) */
 564 #define RTM_IEEE80211_DISASSOC  102     /* station disassociate (bss mode) */
 565 #define RTM_IEEE80211_JOIN      103     /* station join (ap mode) */
 566 #define RTM_IEEE80211_LEAVE     104     /* station leave (ap mode) */
 567 #define RTM_IEEE80211_SCAN      105     /* scan complete, results available */
 568 #define RTM_IEEE80211_REPLAY    106     /* sequence counter replay detected */
 569 #define RTM_IEEE80211_MICHAEL   107     /* Michael MIC failure detected */
 570 #define RTM_IEEE80211_REJOIN    108     /* station re-associate (ap mode) */
 571 #define RTM_IEEE80211_WDS       109     /* WDS discovery (ap mode) */
 572 #define RTM_IEEE80211_CSA       110     /* Channel Switch Announcement event */
 573 #define RTM_IEEE80211_RADAR     111     /* radar event */
 574 #define RTM_IEEE80211_CAC       112     /* Channel Availability Check event */
 575 #define RTM_IEEE80211_DEAUTH    113     /* station deauthenticate */
 576 #define RTM_IEEE80211_AUTH      114     /* station authenticate (ap mode) */
 577 #define RTM_IEEE80211_COUNTRY   115     /* discovered country code (sta mode) */
 578 #define RTM_IEEE80211_RADIO     116     /* RF kill switch state change */
 579
 580 /*
 581  * Structure prepended to raw packets sent through the bpf
 582  * interface when set to DLT_IEEE802_11_RADIO.  This allows
 583  * user applications to specify pretty much everything in
 584  * an Atheros tx descriptor.  XXX need to generalize.
 585  *
 586  * XXX cannot be more than 14 bytes as it is copied to a sockaddr's
 587  * XXX sa_data area.
 588  */
 589 struct ieee80211_bpf_params {
 590         uint8_t         ibp_vers;       /* version */
 591 #define IEEE80211_BPF_VERSION   0
 592         uint8_t         ibp_len;        /* header length in bytes */
 593         uint8_t         ibp_flags;
 594 #define IEEE80211_BPF_SHORTPRE  0x01    /* tx with short preamble */
 595 #define IEEE80211_BPF_NOACK     0x02    /* tx with no ack */
 596 #define IEEE80211_BPF_CRYPTO    0x04    /* tx with h/w encryption */
 597 #define IEEE80211_BPF_FCS       0x10    /* frame incldues FCS */
 598 #define IEEE80211_BPF_DATAPAD   0x20    /* frame includes data padding */
 599 #define IEEE80211_BPF_RTS       0x40    /* tx with RTS/CTS */
 600 #define IEEE80211_BPF_CTS       0x80    /* tx with CTS only */
 601         uint8_t         ibp_pri;        /* WME/WMM AC+tx antenna */
 602         uint8_t         ibp_try0;       /* series 1 try count */
 603         uint8_t         ibp_rate0;      /* series 1 IEEE tx rate */
 604         uint8_t         ibp_power;      /* tx power (device units) */
 605         uint8_t         ibp_ctsrate;    /* IEEE tx rate for CTS */
 606         uint8_t         ibp_try1;       /* series 2 try count */
 607         uint8_t         ibp_rate1;      /* series 2 IEEE tx rate */
 608         uint8_t         ibp_try2;       /* series 3 try count */
 609         uint8_t         ibp_rate2;      /* series 3 IEEE tx rate */
 610         uint8_t         ibp_try3;       /* series 4 try count */
 611         uint8_t         ibp_rate3;      /* series 4 IEEE tx rate */
 612 };
 613
 614 #ifdef _KERNEL
 615 struct ieee80211_tx_params {
 616         struct ieee80211_bpf_params params;
 617 };
 618 int     ieee80211_add_xmit_params(struct mbuf *m,
 619             const struct ieee80211_bpf_params *);
 620 int     ieee80211_get_xmit_params(struct mbuf *m,
 621             struct ieee80211_bpf_params *);
 622
 623 #define IEEE80211_MAX_CHAINS            3
 624 #define IEEE80211_MAX_EVM_PILOTS        6
 625
 626 #define IEEE80211_R_NF          0x0000001       /* global NF value valid */
 627 #define IEEE80211_R_RSSI        0x0000002       /* global RSSI value valid */
 628 #define IEEE80211_R_C_CHAIN     0x0000004       /* RX chain count valid */
 629 #define IEEE80211_R_C_NF        0x0000008       /* per-chain NF value valid */
 630 #define IEEE80211_R_C_RSSI      0x0000010       /* per-chain RSSI value valid */
 631 #define IEEE80211_R_C_EVM       0x0000020       /* per-chain EVM valid */
 632 #define IEEE80211_R_C_HT40      0x0000040       /* RX'ed packet is 40mhz, pilots 4,5 valid */
 633 #define IEEE80211_R_FREQ        0x0000080       /* Freq value populated, MHz */
 634 #define IEEE80211_R_IEEE        0x0000100       /* IEEE value populated */
 635 #define IEEE80211_R_BAND        0x0000200       /* Frequency band populated */
 636
 637 struct ieee80211_rx_stats {
 638         uint32_t r_flags;               /* IEEE80211_R_* flags */
 639         uint8_t c_chain;                /* number of RX chains involved */
 640         int16_t c_nf_ctl[IEEE80211_MAX_CHAINS]; /* per-chain NF */
 641         int16_t c_nf_ext[IEEE80211_MAX_CHAINS]; /* per-chain NF */
 642         int16_t c_rssi_ctl[IEEE80211_MAX_CHAINS];       /* per-chain RSSI */
 643         int16_t c_rssi_ext[IEEE80211_MAX_CHAINS];       /* per-chain RSSI */
 644         uint8_t nf;                     /* global NF */
 645         uint8_t rssi;                   /* global RSSI */
 646         uint8_t evm[IEEE80211_MAX_CHAINS][IEEE80211_MAX_EVM_PILOTS];
 647                                         /* per-chain, per-pilot EVM values */
 648         uint16_t c_freq;
 649         uint8_t c_ieee;
 650 };
 651
 652 struct ieee80211_rx_params {
 653         struct ieee80211_rx_stats params;
 654 };
 655 int     ieee80211_add_rx_params(struct mbuf *m,
 656             const struct ieee80211_rx_stats *rxs);
 657 int     ieee80211_get_rx_params(struct mbuf *m,
 658             struct ieee80211_rx_stats *rxs);
 659 #endif /* _KERNEL */
 660
 661 /*
 662  * Malloc API.  Other BSD operating systems have slightly
 663  * different malloc/free namings (eg DragonflyBSD.)
 664  */
 665 #define IEEE80211_MALLOC        malloc
 666 #define IEEE80211_FREE          free
 667
 668 /* XXX TODO: get rid of WAITOK, fix all the users of it? */
 669 #define IEEE80211_M_NOWAIT      M_NOWAIT
 670 #define IEEE80211_M_WAITOK      M_WAITOK
 671 #define IEEE80211_M_ZERO        M_ZERO
 672
 673 /* XXX TODO: the type fields */
 674
 675 #endif /* _NET80211_IEEE80211_FREEBSD_H_ */