2 * Copyright (c) 2003-2008 Sam Leffler, Errno Consulting
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
27 #ifndef _NET80211_IEEE80211_FREEBSD_H_
28 #define _NET80211_IEEE80211_FREEBSD_H_
31 #include <sys/param.h>
33 #include <sys/mutex.h>
34 #include <sys/rwlock.h>
37 * Common state locking definitions.
40 char name[16]; /* e.g. "ath0_com_lock" */
42 } ieee80211_com_lock_t;
43 #define IEEE80211_LOCK_INIT(_ic, _name) do { \
44 ieee80211_com_lock_t *cl = &(_ic)->ic_comlock; \
45 snprintf(cl->name, sizeof(cl->name), "%s_com_lock", _name); \
46 mtx_init(&cl->mtx, cl->name, NULL, MTX_DEF | MTX_RECURSE); \
48 #define IEEE80211_LOCK_OBJ(_ic) (&(_ic)->ic_comlock.mtx)
49 #define IEEE80211_LOCK_DESTROY(_ic) mtx_destroy(IEEE80211_LOCK_OBJ(_ic))
50 #define IEEE80211_LOCK(_ic) mtx_lock(IEEE80211_LOCK_OBJ(_ic))
51 #define IEEE80211_UNLOCK(_ic) mtx_unlock(IEEE80211_LOCK_OBJ(_ic))
52 #define IEEE80211_LOCK_ASSERT(_ic) \
53 mtx_assert(IEEE80211_LOCK_OBJ(_ic), MA_OWNED)
56 * Node locking definitions.
59 char name[16]; /* e.g. "ath0_node_lock" */
61 } ieee80211_node_lock_t;
62 #define IEEE80211_NODE_LOCK_INIT(_nt, _name) do { \
63 ieee80211_node_lock_t *nl = &(_nt)->nt_nodelock; \
64 snprintf(nl->name, sizeof(nl->name), "%s_node_lock", _name); \
65 mtx_init(&nl->mtx, nl->name, NULL, MTX_DEF | MTX_RECURSE); \
67 #define IEEE80211_NODE_LOCK_OBJ(_nt) (&(_nt)->nt_nodelock.mtx)
68 #define IEEE80211_NODE_LOCK_DESTROY(_nt) \
69 mtx_destroy(IEEE80211_NODE_LOCK_OBJ(_nt))
70 #define IEEE80211_NODE_LOCK(_nt) \
71 mtx_lock(IEEE80211_NODE_LOCK_OBJ(_nt))
72 #define IEEE80211_NODE_IS_LOCKED(_nt) \
73 mtx_owned(IEEE80211_NODE_LOCK_OBJ(_nt))
74 #define IEEE80211_NODE_UNLOCK(_nt) \
75 mtx_unlock(IEEE80211_NODE_LOCK_OBJ(_nt))
76 #define IEEE80211_NODE_LOCK_ASSERT(_nt) \
77 mtx_assert(IEEE80211_NODE_LOCK_OBJ(_nt), MA_OWNED)
80 * Node table iteration locking definitions; this protects the
81 * scan generation # used to iterate over the station table
82 * while grabbing+releasing the node lock.
85 char name[16]; /* e.g. "ath0_scan_lock" */
87 } ieee80211_scan_lock_t;
88 #define IEEE80211_NODE_ITERATE_LOCK_INIT(_nt, _name) do { \
89 ieee80211_scan_lock_t *sl = &(_nt)->nt_scanlock; \
90 snprintf(sl->name, sizeof(sl->name), "%s_scan_lock", _name); \
91 mtx_init(&sl->mtx, sl->name, NULL, MTX_DEF); \
93 #define IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt) (&(_nt)->nt_scanlock.mtx)
94 #define IEEE80211_NODE_ITERATE_LOCK_DESTROY(_nt) \
95 mtx_destroy(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
96 #define IEEE80211_NODE_ITERATE_LOCK(_nt) \
97 mtx_lock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
98 #define IEEE80211_NODE_ITERATE_UNLOCK(_nt) \
99 mtx_unlock(IEEE80211_NODE_ITERATE_LOCK_OBJ(_nt))
101 #define _AGEQ_ENQUEUE(_ifq, _m, _qlen, _age) do { \
102 (_m)->m_nextpkt = NULL; \
103 if ((_ifq)->ifq_tail != NULL) { \
104 _age -= M_AGE_GET((_ifq)->ifq_head); \
105 (_ifq)->ifq_tail->m_nextpkt = (_m); \
107 (_ifq)->ifq_head = (_m); \
109 M_AGE_SET(_m, _age); \
110 (_ifq)->ifq_tail = (_m); \
111 (_qlen) = ++(_ifq)->ifq_len; \
115 * Power-save queue definitions.
117 typedef struct mtx ieee80211_psq_lock_t;
118 #define IEEE80211_PSQ_INIT(_psq, _name) \
119 mtx_init(&(_psq)->psq_lock, _name, "802.11 ps q", MTX_DEF);
120 #define IEEE80211_PSQ_DESTROY(_psq) mtx_destroy(&(_psq)->psq_lock)
121 #define IEEE80211_PSQ_LOCK(_psq) mtx_lock(&(_psq)->psq_lock)
122 #define IEEE80211_PSQ_UNLOCK(_psq) mtx_unlock(&(_psq)->psq_lock)
124 #ifndef IF_PREPEND_LIST
125 #define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do { \
126 (mtail)->m_nextpkt = (ifq)->ifq_head; \
127 if ((ifq)->ifq_tail == NULL) \
128 (ifq)->ifq_tail = (mtail); \
129 (ifq)->ifq_head = (mhead); \
130 (ifq)->ifq_len += (mcount); \
132 #define IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do { \
134 _IF_PREPEND_LIST(ifq, mhead, mtail, mcount); \
137 #endif /* IF_PREPEND_LIST */
140 #define IEEE80211_NODE_WDSQ_INIT(_ni, _name) do { \
141 mtx_init(&(_ni)->ni_wdsq.ifq_mtx, _name, "802.11 wds queue", MTX_DEF);\
142 (_ni)->ni_wdsq.ifq_maxlen = IEEE80211_PS_MAX_QUEUE; \
144 #define IEEE80211_NODE_WDSQ_DESTROY(_ni) do { \
145 mtx_destroy(&(_ni)->ni_wdsq.ifq_mtx); \
147 #define IEEE80211_NODE_WDSQ_QLEN(_ni) _IF_QLEN(&(_ni)->ni_wdsq)
148 #define IEEE80211_NODE_WDSQ_LOCK(_ni) IF_LOCK(&(_ni)->ni_wdsq)
149 #define IEEE80211_NODE_WDSQ_UNLOCK(_ni) IF_UNLOCK(&(_ni)->ni_wdsq)
150 #define _IEEE80211_NODE_WDSQ_DEQUEUE_HEAD(_ni, _m) do { \
151 _IF_DEQUEUE(&(_ni)->ni_wdsq, m); \
153 #define _IEEE80211_NODE_WDSQ_ENQUEUE(_ni, _m, _qlen, _age) do { \
154 _AGEQ_ENQUEUE(&ni->ni_wdsq, _m, _qlen, _age); \
158 * 802.1x MAC ACL database locking definitions.
160 typedef struct mtx acl_lock_t;
161 #define ACL_LOCK_INIT(_as, _name) \
162 mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF)
163 #define ACL_LOCK_DESTROY(_as) mtx_destroy(&(_as)->as_lock)
164 #define ACL_LOCK(_as) mtx_lock(&(_as)->as_lock)
165 #define ACL_UNLOCK(_as) mtx_unlock(&(_as)->as_lock)
166 #define ACL_LOCK_ASSERT(_as) \
167 mtx_assert((&(_as)->as_lock), MA_OWNED)
170 * Node reference counting definitions.
172 * ieee80211_node_initref initialize the reference count to 1
173 * ieee80211_node_incref add a reference
174 * ieee80211_node_decref remove a reference
175 * ieee80211_node_dectestref remove a reference and return 1 if this
176 * is the last reference, otherwise 0
177 * ieee80211_node_refcnt reference count for printing (only)
179 #include <machine/atomic.h>
181 #define ieee80211_node_initref(_ni) \
182 do { ((_ni)->ni_refcnt = 1); } while (0)
183 #define ieee80211_node_incref(_ni) \
184 atomic_add_int(&(_ni)->ni_refcnt, 1)
185 #define ieee80211_node_decref(_ni) \
186 atomic_subtract_int(&(_ni)->ni_refcnt, 1)
187 struct ieee80211_node;
188 int ieee80211_node_dectestref(struct ieee80211_node *ni);
189 #define ieee80211_node_refcnt(_ni) (_ni)->ni_refcnt
193 void ieee80211_drain_ifq(struct ifqueue *);
194 void ieee80211_flush_ifq(struct ifqueue *, struct ieee80211vap *);
196 void ieee80211_vap_destroy(struct ieee80211vap *);
198 #define IFNET_IS_UP_RUNNING(_ifp) \
199 (((_ifp)->if_flags & IFF_UP) && \
200 ((_ifp)->if_drv_flags & IFF_DRV_RUNNING))
202 #define msecs_to_ticks(ms) (((ms)*hz)/1000)
203 #define ticks_to_msecs(t) (1000*(t) / hz)
204 #define ticks_to_secs(t) ((t) / hz)
205 #define time_after(a,b) ((long)(b) - (long)(a) < 0)
206 #define time_before(a,b) time_after(b,a)
207 #define time_after_eq(a,b) ((long)(a) - (long)(b) >= 0)
208 #define time_before_eq(a,b) time_after_eq(b,a)
210 struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen);
213 #define M_ENCAP M_PROTO1 /* 802.11 encap done */
214 #define M_WDS M_PROTO2 /* WDS frame */
215 #define M_EAPOL M_PROTO3 /* PAE/EAPOL frame */
216 #define M_PWR_SAV M_PROTO4 /* bypass PS handling */
217 #define M_MORE_DATA M_PROTO5 /* more data frames to follow */
218 #define M_FF M_PROTO6 /* fast frame */
219 #define M_TXCB M_PROTO7 /* do tx complete callback */
220 #define M_AMPDU_MPDU M_PROTO8 /* ok for A-MPDU aggregation */
222 (M_FRAG|M_FIRSTFRAG|M_LASTFRAG|M_ENCAP|M_WDS|M_EAPOL|M_PWR_SAV|\
223 M_MORE_DATA|M_FF|M_TXCB|M_AMPDU_MPDU)
226 #define M_AMPDU M_PROTO1 /* A-MPDU subframe */
227 #define M_WEP M_PROTO2 /* WEP done by hardware */
229 #define M_AMPDU_MPDU M_PROTO8 /* A-MPDU re-order done */
231 #define M_80211_RX (M_AMPDU|M_WEP|M_AMPDU_MPDU)
233 * Store WME access control bits in the vlan tag.
234 * This is safe since it's done after the packet is classified
235 * (where we use any previous tag) and because it's passed
236 * directly in to the driver and there's no chance someone
237 * else will clobber them on us.
239 #define M_WME_SETAC(m, ac) \
240 ((m)->m_pkthdr.ether_vtag = (ac))
241 #define M_WME_GETAC(m) ((m)->m_pkthdr.ether_vtag)
244 * Mbufs on the power save queue are tagged with an age and
245 * timed out. We reuse the hardware checksum field in the
246 * mbuf packet header to store this data.
248 #define M_AGE_SET(m,v) (m->m_pkthdr.csum_data = v)
249 #define M_AGE_GET(m) (m->m_pkthdr.csum_data)
250 #define M_AGE_SUB(m,adj) (m->m_pkthdr.csum_data -= adj)
252 #define MTAG_ABI_NET80211 1132948340 /* net80211 ABI */
254 struct ieee80211_cb {
255 void (*func)(struct ieee80211_node *, void *, int status);
258 #define NET80211_TAG_CALLBACK 0 /* xmit complete callback */
259 int ieee80211_add_callback(struct mbuf *m,
260 void (*func)(struct ieee80211_node *, void *, int), void *arg);
261 void ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int);
263 void get_random_bytes(void *, size_t);
267 void ieee80211_sysctl_attach(struct ieee80211com *);
268 void ieee80211_sysctl_detach(struct ieee80211com *);
269 void ieee80211_sysctl_vattach(struct ieee80211vap *);
270 void ieee80211_sysctl_vdetach(struct ieee80211vap *);
272 void ieee80211_load_module(const char *);
275 * A "policy module" is an adjunct module to net80211 that provides
276 * functionality that typically includes policy decisions. This
277 * modularity enables extensibility and vendor-supplied functionality.
279 #define _IEEE80211_POLICY_MODULE(policy, name, version) \
280 typedef void (*policy##_setup)(int); \
281 SET_DECLARE(policy##_set, policy##_setup); \
283 wlan_##name##_modevent(module_t mod, int type, void *unused) \
285 policy##_setup * const *iter, f; \
288 SET_FOREACH(iter, policy##_set) { \
296 printf("wlan_##name: still in use (%u dynamic refs)\n",\
300 if (type == MOD_UNLOAD) { \
301 SET_FOREACH(iter, policy##_set) { \
310 static moduledata_t name##_mod = { \
312 wlan_##name##_modevent, \
315 DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
316 MODULE_VERSION(wlan_##name, version); \
317 MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1)
320 * Crypto modules implement cipher support.
322 #define IEEE80211_CRYPTO_MODULE(name, version) \
323 _IEEE80211_POLICY_MODULE(crypto, name, version); \
325 name##_modevent(int type) \
327 if (type == MOD_LOAD) \
328 ieee80211_crypto_register(&name); \
330 ieee80211_crypto_unregister(&name); \
332 TEXT_SET(crypto##_set, name##_modevent)
335 * Scanner modules provide scanning policy.
337 #define IEEE80211_SCANNER_MODULE(name, version) \
338 _IEEE80211_POLICY_MODULE(scanner, name, version)
340 #define IEEE80211_SCANNER_ALG(name, alg, v) \
342 name##_modevent(int type) \
344 if (type == MOD_LOAD) \
345 ieee80211_scanner_register(alg, &v); \
347 ieee80211_scanner_unregister(alg, &v); \
349 TEXT_SET(scanner_set, name##_modevent); \
352 * ACL modules implement acl policy.
354 #define IEEE80211_ACL_MODULE(name, alg, version) \
355 _IEEE80211_POLICY_MODULE(acl, name, version); \
357 alg##_modevent(int type) \
359 if (type == MOD_LOAD) \
360 ieee80211_aclator_register(&alg); \
362 ieee80211_aclator_unregister(&alg); \
364 TEXT_SET(acl_set, alg##_modevent); \
367 * Authenticator modules handle 802.1x/WPA authentication.
369 #define IEEE80211_AUTH_MODULE(name, version) \
370 _IEEE80211_POLICY_MODULE(auth, name, version)
372 #define IEEE80211_AUTH_ALG(name, alg, v) \
374 name##_modevent(int type) \
376 if (type == MOD_LOAD) \
377 ieee80211_authenticator_register(alg, &v); \
379 ieee80211_authenticator_unregister(alg); \
381 TEXT_SET(auth_set, name##_modevent)
384 * Rate control modules provide tx rate control support.
386 #define IEEE80211_RATE_MODULE(alg, version) \
387 _IEEE80211_POLICY_MODULE(rate, alg, version); \
389 alg##_modevent(int type) \
391 /* XXX nothing to do until the rate control framework arrives */\
393 TEXT_SET(rate##_set, alg##_modevent)
396 /* XXX this stuff belongs elsewhere */
398 * Message formats for messages from the net80211 layer to user
399 * applications via the routing socket. These messages are appended
400 * to an if_announcemsghdr structure.
402 struct ieee80211_join_event {
406 struct ieee80211_leave_event {
410 struct ieee80211_replay_event {
411 uint8_t iev_src[6]; /* src MAC */
412 uint8_t iev_dst[6]; /* dst MAC */
413 uint8_t iev_cipher; /* cipher type */
414 uint8_t iev_keyix; /* key id/index */
415 uint64_t iev_keyrsc; /* RSC from key */
416 uint64_t iev_rsc; /* RSC from frame */
419 struct ieee80211_michael_event {
420 uint8_t iev_src[6]; /* src MAC */
421 uint8_t iev_dst[6]; /* dst MAC */
422 uint8_t iev_cipher; /* cipher type */
423 uint8_t iev_keyix; /* key id/index */
426 struct ieee80211_wds_event {
430 struct ieee80211_csa_event {
431 uint32_t iev_flags; /* channel flags */
432 uint16_t iev_freq; /* setting in Mhz */
433 uint8_t iev_ieee; /* IEEE channel number */
434 uint8_t iev_mode; /* CSA mode */
435 uint8_t iev_count; /* CSA count */
438 struct ieee80211_cac_event {
439 uint32_t iev_flags; /* channel flags */
440 uint16_t iev_freq; /* setting in Mhz */
441 uint8_t iev_ieee; /* IEEE channel number */
443 uint8_t iev_type; /* IEEE80211_NOTIFY_CAC_* */
446 struct ieee80211_radar_event {
447 uint32_t iev_flags; /* channel flags */
448 uint16_t iev_freq; /* setting in Mhz */
449 uint8_t iev_ieee; /* IEEE channel number */
453 struct ieee80211_auth_event {
457 struct ieee80211_deauth_event {
461 struct ieee80211_country_event {
463 uint8_t iev_cc[2]; /* ISO country code */
466 struct ieee80211_radio_event {
467 uint8_t iev_state; /* 1 on, 0 off */
470 #define RTM_IEEE80211_ASSOC 100 /* station associate (bss mode) */
471 #define RTM_IEEE80211_REASSOC 101 /* station re-associate (bss mode) */
472 #define RTM_IEEE80211_DISASSOC 102 /* station disassociate (bss mode) */
473 #define RTM_IEEE80211_JOIN 103 /* station join (ap mode) */
474 #define RTM_IEEE80211_LEAVE 104 /* station leave (ap mode) */
475 #define RTM_IEEE80211_SCAN 105 /* scan complete, results available */
476 #define RTM_IEEE80211_REPLAY 106 /* sequence counter replay detected */
477 #define RTM_IEEE80211_MICHAEL 107 /* Michael MIC failure detected */
478 #define RTM_IEEE80211_REJOIN 108 /* station re-associate (ap mode) */
479 #define RTM_IEEE80211_WDS 109 /* WDS discovery (ap mode) */
480 #define RTM_IEEE80211_CSA 110 /* Channel Switch Announcement event */
481 #define RTM_IEEE80211_RADAR 111 /* radar event */
482 #define RTM_IEEE80211_CAC 112 /* Channel Availability Check event */
483 #define RTM_IEEE80211_DEAUTH 113 /* station deauthenticate */
484 #define RTM_IEEE80211_AUTH 114 /* station authenticate (ap mode) */
485 #define RTM_IEEE80211_COUNTRY 115 /* discovered country code (sta mode) */
486 #define RTM_IEEE80211_RADIO 116 /* RF kill switch state change */
489 * Structure prepended to raw packets sent through the bpf
490 * interface when set to DLT_IEEE802_11_RADIO. This allows
491 * user applications to specify pretty much everything in
492 * an Atheros tx descriptor. XXX need to generalize.
494 * XXX cannot be more than 14 bytes as it is copied to a sockaddr's
497 struct ieee80211_bpf_params {
498 uint8_t ibp_vers; /* version */
499 #define IEEE80211_BPF_VERSION 0
500 uint8_t ibp_len; /* header length in bytes */
502 #define IEEE80211_BPF_SHORTPRE 0x01 /* tx with short preamble */
503 #define IEEE80211_BPF_NOACK 0x02 /* tx with no ack */
504 #define IEEE80211_BPF_CRYPTO 0x04 /* tx with h/w encryption */
505 #define IEEE80211_BPF_FCS 0x10 /* frame incldues FCS */
506 #define IEEE80211_BPF_DATAPAD 0x20 /* frame includes data padding */
507 #define IEEE80211_BPF_RTS 0x40 /* tx with RTS/CTS */
508 #define IEEE80211_BPF_CTS 0x80 /* tx with CTS only */
509 uint8_t ibp_pri; /* WME/WMM AC+tx antenna */
510 uint8_t ibp_try0; /* series 1 try count */
511 uint8_t ibp_rate0; /* series 1 IEEE tx rate */
512 uint8_t ibp_power; /* tx power (device units) */
513 uint8_t ibp_ctsrate; /* IEEE tx rate for CTS */
514 uint8_t ibp_try1; /* series 2 try count */
515 uint8_t ibp_rate1; /* series 2 IEEE tx rate */
516 uint8_t ibp_try2; /* series 3 try count */
517 uint8_t ibp_rate2; /* series 3 IEEE tx rate */
518 uint8_t ibp_try3; /* series 4 try count */
519 uint8_t ibp_rate3; /* series 4 IEEE tx rate */
521 #endif /* _NET80211_IEEE80211_FREEBSD_H_ */