/*- * Copyright (c) 2003-2007 Sam Leffler, Errno Consulting * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _NET80211_IEEE80211_FREEBSD_H_ #define _NET80211_IEEE80211_FREEBSD_H_ #ifdef _KERNEL /* * Common state locking definitions. */ typedef struct mtx ieee80211_com_lock_t; #define IEEE80211_LOCK_INIT(_ic, _name) \ mtx_init(&(_ic)->ic_comlock, _name, "802.11 com lock", MTX_DEF) #define IEEE80211_LOCK_DESTROY(_ic) mtx_destroy(&(_ic)->ic_comlock) #define IEEE80211_LOCK(_ic) mtx_lock(&(_ic)->ic_comlock) #define IEEE80211_UNLOCK(_ic) mtx_unlock(&(_ic)->ic_comlock) #define IEEE80211_LOCK_ASSERT(_ic) \ mtx_assert(&(_ic)->ic_comlock, MA_OWNED) /* * Beacon locking definitions. */ typedef struct mtx ieee80211_beacon_lock_t; #define IEEE80211_BEACON_LOCK_INIT(_ic, _name) \ mtx_init(&(_ic)->ic_beaconlock, _name, "802.11 beacon lock", MTX_DEF) #define IEEE80211_BEACON_LOCK_DESTROY(_ic) mtx_destroy(&(_ic)->ic_beaconlock) #define IEEE80211_BEACON_LOCK(_ic) mtx_lock(&(_ic)->ic_beaconlock) #define IEEE80211_BEACON_UNLOCK(_ic) mtx_unlock(&(_ic)->ic_beaconlock) #define IEEE80211_BEACON_LOCK_ASSERT(_ic) \ mtx_assert(&(_ic)->ic_beaconlock, MA_OWNED) /* * Node locking definitions. * NB: MTX_DUPOK is because we don't generate per-interface strings. */ typedef struct mtx ieee80211_node_lock_t; #define IEEE80211_NODE_LOCK_INIT(_nt, _name) \ mtx_init(&(_nt)->nt_nodelock, _name, "802.11 node table", \ MTX_DEF | MTX_DUPOK) #define IEEE80211_NODE_LOCK_DESTROY(_nt) mtx_destroy(&(_nt)->nt_nodelock) #define IEEE80211_NODE_LOCK(_nt) mtx_lock(&(_nt)->nt_nodelock) #define IEEE80211_NODE_IS_LOCKED(_nt) mtx_owned(&(_nt)->nt_nodelock) #define IEEE80211_NODE_UNLOCK(_nt) mtx_unlock(&(_nt)->nt_nodelock) #define IEEE80211_NODE_LOCK_ASSERT(_nt) \ mtx_assert(&(_nt)->nt_nodelock, MA_OWNED) /* * Node table scangen locking definitions. */ typedef struct mtx ieee80211_scan_lock_t; #define IEEE80211_SCAN_LOCK_INIT(_nt, _name) \ mtx_init(&(_nt)->nt_scanlock, _name, "802.11 node scangen", MTX_DEF) #define IEEE80211_SCAN_LOCK_DESTROY(_nt) mtx_destroy(&(_nt)->nt_scanlock) #define IEEE80211_SCAN_LOCK(_nt) mtx_lock(&(_nt)->nt_scanlock) #define IEEE80211_SCAN_UNLOCK(_nt) mtx_unlock(&(_nt)->nt_scanlock) #define IEEE80211_SCAN_LOCK_ASSERT(_nt) \ mtx_assert(&(_nt)->nt_scanlock, MA_OWNED) /* * Per-node power-save queue definitions. */ #define IEEE80211_NODE_SAVEQ_INIT(_ni, _name) do { \ mtx_init(&(_ni)->ni_savedq.ifq_mtx, _name, "802.11 ps queue", MTX_DEF);\ (_ni)->ni_savedq.ifq_maxlen = IEEE80211_PS_MAX_QUEUE; \ } while (0) #define IEEE80211_NODE_SAVEQ_DESTROY(_ni) \ mtx_destroy(&(_ni)->ni_savedq.ifq_mtx) #define IEEE80211_NODE_SAVEQ_QLEN(_ni) \ _IF_QLEN(&(_ni)->ni_savedq) #define IEEE80211_NODE_SAVEQ_LOCK(_ni) do { \ IF_LOCK(&(_ni)->ni_savedq); \ } while (0) #define IEEE80211_NODE_SAVEQ_UNLOCK(_ni) do { \ IF_UNLOCK(&(_ni)->ni_savedq); \ } while (0) #define IEEE80211_NODE_SAVEQ_DEQUEUE(_ni, _m, _qlen) do { \ IEEE80211_NODE_SAVEQ_LOCK(_ni); \ _IF_DEQUEUE(&(_ni)->ni_savedq, _m); \ (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni); \ IEEE80211_NODE_SAVEQ_UNLOCK(_ni); \ } while (0) #define IEEE80211_NODE_SAVEQ_DRAIN(_ni, _qlen) do { \ IEEE80211_NODE_SAVEQ_LOCK(_ni); \ (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni); \ _IF_DRAIN(&(_ni)->ni_savedq); \ IEEE80211_NODE_SAVEQ_UNLOCK(_ni); \ } while (0) /* XXX could be optimized */ #define _IEEE80211_NODE_SAVEQ_DEQUEUE_HEAD(_ni, _m) do { \ _IF_DEQUEUE(&(_ni)->ni_savedq, m); \ } while (0) #define _IEEE80211_NODE_SAVEQ_ENQUEUE(_ni, _m, _qlen, _age) do {\ (_m)->m_nextpkt = NULL; \ if ((_ni)->ni_savedq.ifq_tail != NULL) { \ _age -= M_AGE_GET((_ni)->ni_savedq.ifq_tail); \ (_ni)->ni_savedq.ifq_tail->m_nextpkt = (_m); \ } else { \ (_ni)->ni_savedq.ifq_head = (_m); \ } \ M_AGE_SET(_m, _age); \ (_ni)->ni_savedq.ifq_tail = (_m); \ (_qlen) = ++(_ni)->ni_savedq.ifq_len; \ } while (0) #define IEEE80211_TAPQ_INIT(_tap) do { \ mtx_init(&(tap)->txa_q.ifq_mtx, "ampdu tx queue", NULL, MTX_DEF); \ (_tap)->txa_q.ifq_maxlen = IEEE80211_AGGR_BAWMAX; \ } while (0) #define IEEE80211_TAPQ_DESTROY(_tap) \ mtx_destroy(&(_tap)->txa_q.ifq_mtx) #ifndef IF_PREPEND_LIST #define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do { \ (mtail)->m_nextpkt = (ifq)->ifq_head; \ if ((ifq)->ifq_tail == NULL) \ (ifq)->ifq_tail = (mtail); \ (ifq)->ifq_head = (mhead); \ (ifq)->ifq_len += (mcount); \ } while (0) #define IF_PREPEND_LIST(ifq, mhead, mtail, mcount) do { \ IF_LOCK(ifq); \ _IF_PREPEND_LIST(ifq, mhead, mtail, mcount); \ IF_UNLOCK(ifq); \ } while (0) #endif /* IF_PREPEND_LIST */ /* * 802.1x MAC ACL database locking definitions. */ typedef struct mtx acl_lock_t; #define ACL_LOCK_INIT(_as, _name) \ mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF) #define ACL_LOCK_DESTROY(_as) mtx_destroy(&(_as)->as_lock) #define ACL_LOCK(_as) mtx_lock(&(_as)->as_lock) #define ACL_UNLOCK(_as) mtx_unlock(&(_as)->as_lock) #define ACL_LOCK_ASSERT(_as) \ mtx_assert((&(_as)->as_lock), MA_OWNED) /* * Node reference counting definitions. * * ieee80211_node_initref initialize the reference count to 1 * ieee80211_node_incref add a reference * ieee80211_node_decref remove a reference * ieee80211_node_dectestref remove a reference and return 1 if this * is the last reference, otherwise 0 * ieee80211_node_refcnt reference count for printing (only) */ #include #define ieee80211_node_initref(_ni) \ do { ((_ni)->ni_refcnt = 1); } while (0) #define ieee80211_node_incref(_ni) \ atomic_add_int(&(_ni)->ni_refcnt, 1) #define ieee80211_node_decref(_ni) \ atomic_subtract_int(&(_ni)->ni_refcnt, 1) struct ieee80211_node; int ieee80211_node_dectestref(struct ieee80211_node *ni); #define ieee80211_node_refcnt(_ni) (_ni)->ni_refcnt struct ifqueue; void ieee80211_drain_ifq(struct ifqueue *); #define msecs_to_ticks(ms) (((ms)*hz)/1000) #define ticks_to_msecs(t) ((t) / hz) #define time_after(a,b) ((long)(b) - (long)(a) < 0) #define time_before(a,b) time_after(b,a) #define time_after_eq(a,b) ((long)(a) - (long)(b) >= 0) #define time_before_eq(a,b) time_after_eq(b,a) struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen); /* tx path usage */ #define M_LINK0 M_PROTO1 /* WEP requested */ #define M_PWR_SAV M_PROTO4 /* bypass PS handling */ #define M_MORE_DATA M_PROTO5 /* more data frames to follow */ #define M_FF 0x20000 /* fast frame */ #define M_TXCB 0x40000 /* do tx complete callback */ #define M_80211_TX (0x60000|M_PROTO1|M_WME_AC_MASK|M_PROTO4|M_PROTO5) /* rx path usage */ #define M_AMPDU M_PROTO1 /* A-MPDU processing done */ #define M_WEP M_PROTO2 /* WEP done by hardware */ #define M_80211_RX (M_AMPDU|M_WEP) /* * Encode WME access control bits in the PROTO flags. * This is safe since it's passed directly in to the * driver and there's no chance someone else will clobber * them on us. */ #define M_WME_AC_MASK (M_PROTO2|M_PROTO3) /* XXX 5 is wrong if M_PROTO* are redefined */ #define M_WME_AC_SHIFT 5 #define M_WME_SETAC(m, ac) \ ((m)->m_flags = ((m)->m_flags &~ M_WME_AC_MASK) | \ ((ac) << M_WME_AC_SHIFT)) #define M_WME_GETAC(m) (((m)->m_flags >> M_WME_AC_SHIFT) & 0x3) /* * Mbufs on the power save queue are tagged with an age and * timed out. We reuse the hardware checksum field in the * mbuf packet header to store this data. */ #define M_AGE_SET(m,v) (m->m_pkthdr.csum_data = v) #define M_AGE_GET(m) (m->m_pkthdr.csum_data) #define M_AGE_SUB(m,adj) (m->m_pkthdr.csum_data -= adj) #define MTAG_ABI_NET80211 1132948340 /* net80211 ABI */ struct ieee80211_cb { void (*func)(struct ieee80211_node *, void *, int status); void *arg; }; #define NET80211_TAG_CALLBACK 0 /* xmit complete callback */ int ieee80211_add_callback(struct mbuf *m, void (*func)(struct ieee80211_node *, void *, int), void *arg); void ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int); void get_random_bytes(void *, size_t); struct ieee80211com; void ieee80211_sysctl_attach(struct ieee80211com *); void ieee80211_sysctl_detach(struct ieee80211com *); void ieee80211_load_module(const char *); #define IEEE80211_CRYPTO_MODULE(name, version) \ static int \ name##_modevent(module_t mod, int type, void *unused) \ { \ switch (type) { \ case MOD_LOAD: \ ieee80211_crypto_register(&name); \ return 0; \ case MOD_UNLOAD: \ case MOD_QUIESCE: \ if (nrefs) { \ printf("wlan_##name: still in use (%u dynamic refs)\n",\ nrefs); \ return EBUSY; \ } \ if (type == MOD_UNLOAD) \ ieee80211_crypto_unregister(&name); \ return 0; \ } \ return EINVAL; \ } \ static moduledata_t name##_mod = { \ "wlan_" #name, \ name##_modevent, \ 0 \ }; \ DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\ MODULE_VERSION(wlan_##name, version); \ MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1) #endif /* _KERNEL */ /* XXX this stuff belongs elsewhere */ /* * Message formats for messages from the net80211 layer to user * applications via the routing socket. These messages are appended * to an if_announcemsghdr structure. */ struct ieee80211_join_event { uint8_t iev_addr[6]; }; struct ieee80211_leave_event { uint8_t iev_addr[6]; }; struct ieee80211_replay_event { uint8_t iev_src[6]; /* src MAC */ uint8_t iev_dst[6]; /* dst MAC */ uint8_t iev_cipher; /* cipher type */ uint8_t iev_keyix; /* key id/index */ uint64_t iev_keyrsc; /* RSC from key */ uint64_t iev_rsc; /* RSC from frame */ }; struct ieee80211_michael_event { uint8_t iev_src[6]; /* src MAC */ uint8_t iev_dst[6]; /* dst MAC */ uint8_t iev_cipher; /* cipher type */ uint8_t iev_keyix; /* key id/index */ }; #define RTM_IEEE80211_ASSOC 100 /* station associate (bss mode) */ #define RTM_IEEE80211_REASSOC 101 /* station re-associate (bss mode) */ #define RTM_IEEE80211_DISASSOC 102 /* station disassociate (bss mode) */ #define RTM_IEEE80211_JOIN 103 /* station join (ap mode) */ #define RTM_IEEE80211_LEAVE 104 /* station leave (ap mode) */ #define RTM_IEEE80211_SCAN 105 /* scan complete, results available */ #define RTM_IEEE80211_REPLAY 106 /* sequence counter replay detected */ #define RTM_IEEE80211_MICHAEL 107 /* Michael MIC failure detected */ #define RTM_IEEE80211_REJOIN 108 /* station re-associate (ap mode) */ /* * Structure prepended to raw packets sent through the bpf * interface when set to DLT_IEEE802_11_RADIO. This allows * user applications to specify pretty much everything in * an Atheros tx descriptor. XXX need to generalize. * * XXX cannot be more than 14 bytes as it is copied to a sockaddr's * XXX sa_data area. */ struct ieee80211_bpf_params { uint8_t ibp_vers; /* version */ #define IEEE80211_BPF_VERSION 0 uint8_t ibp_len; /* header length in bytes */ uint8_t ibp_flags; #define IEEE80211_BPF_SHORTPRE 0x01 /* tx with short preamble */ #define IEEE80211_BPF_NOACK 0x02 /* tx with no ack */ #define IEEE80211_BPF_CRYPTO 0x04 /* tx with h/w encryption */ #define IEEE80211_BPF_FCS 0x10 /* frame incldues FCS */ #define IEEE80211_BPF_DATAPAD 0x20 /* frame includes data padding */ #define IEEE80211_BPF_RTS 0x40 /* tx with RTS/CTS */ #define IEEE80211_BPF_CTS 0x80 /* tx with CTS only */ uint8_t ibp_pri; /* WME/WMM AC+tx antenna */ uint8_t ibp_try0; /* series 1 try count */ uint8_t ibp_rate0; /* series 1 IEEE tx rate */ uint8_t ibp_power; /* tx power (device units) */ uint8_t ibp_ctsrate; /* IEEE tx rate for CTS */ uint8_t ibp_try1; /* series 2 try count */ uint8_t ibp_rate1; /* series 2 IEEE tx rate */ uint8_t ibp_try2; /* series 3 try count */ uint8_t ibp_rate2; /* series 3 IEEE tx rate */ uint8_t ibp_try3; /* series 4 try count */ uint8_t ibp_rate3; /* series 4 IEEE tx rate */ }; #endif /* _NET80211_IEEE80211_FREEBSD_H_ */