1 /*- 2 * Copyright (c) 2003-2005 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 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 #ifndef _NET80211_IEEE80211_FREEBSD_H_ 30 #define _NET80211_IEEE80211_FREEBSD_H_ 31 32 /* 33 * Beacon locking definitions. 34 */ 35 typedef struct mtx ieee80211_beacon_lock_t; 36 #define IEEE80211_BEACON_LOCK_INIT(_ic, _name) \ 37 mtx_init(&(_ic)->ic_beaconlock, _name, "802.11 beacon lock", MTX_DEF) 38 #define IEEE80211_BEACON_LOCK_DESTROY(_ic) mtx_destroy(&(_ic)->ic_beaconlock) 39 #define IEEE80211_BEACON_LOCK(_ic) mtx_lock(&(_ic)->ic_beaconlock) 40 #define IEEE80211_BEACON_UNLOCK(_ic) mtx_unlock(&(_ic)->ic_beaconlock) 41 #define IEEE80211_BEACON_LOCK_ASSERT(_ic) \ 42 mtx_assert(&(_ic)->ic_beaconlock, MA_OWNED) 43 44 /* 45 * Node locking definitions. 46 * NB: MTX_DUPOK is because we don't generate per-interface strings. 47 */ 48 typedef struct mtx ieee80211_node_lock_t; 49 #define IEEE80211_NODE_LOCK_INIT(_nt, _name) \ 50 mtx_init(&(_nt)->nt_nodelock, _name, "802.11 node table", \ 51 MTX_DEF | MTX_DUPOK) 52 #define IEEE80211_NODE_LOCK_DESTROY(_nt) mtx_destroy(&(_nt)->nt_nodelock) 53 #define IEEE80211_NODE_LOCK(_nt) mtx_lock(&(_nt)->nt_nodelock) 54 #define IEEE80211_NODE_IS_LOCKED(_nt) mtx_owned(&(_nt)->nt_nodelock) 55 #define IEEE80211_NODE_UNLOCK(_nt) mtx_unlock(&(_nt)->nt_nodelock) 56 #define IEEE80211_NODE_LOCK_ASSERT(_nt) \ 57 mtx_assert(&(_nt)->nt_nodelock, MA_OWNED) 58 59 /* 60 * Node table scangen locking definitions. 61 */ 62 typedef struct mtx ieee80211_scan_lock_t; 63 #define IEEE80211_SCAN_LOCK_INIT(_nt, _name) \ 64 mtx_init(&(_nt)->nt_scanlock, _name, "802.11 scangen", MTX_DEF) 65 #define IEEE80211_SCAN_LOCK_DESTROY(_nt) mtx_destroy(&(_nt)->nt_scanlock) 66 #define IEEE80211_SCAN_LOCK(_nt) mtx_lock(&(_nt)->nt_scanlock) 67 #define IEEE80211_SCAN_UNLOCK(_nt) mtx_unlock(&(_nt)->nt_scanlock) 68 #define IEEE80211_SCAN_LOCK_ASSERT(_nt) \ 69 mtx_assert(&(_nt)->nt_scanlock, MA_OWNED) 70 71 /* 72 * Per-node power-save queue definitions. 73 */ 74 #define IEEE80211_NODE_SAVEQ_INIT(_ni, _name) do { \ 75 mtx_init(&(_ni)->ni_savedq.ifq_mtx, _name, "802.11 ps queue", MTX_DEF);\ 76 (_ni)->ni_savedq.ifq_maxlen = IEEE80211_PS_MAX_QUEUE; \ 77 } while (0) 78 #define IEEE80211_NODE_SAVEQ_DESTROY(_ni) \ 79 mtx_destroy(&(_ni)->ni_savedq.ifq_mtx) 80 #define IEEE80211_NODE_SAVEQ_QLEN(_ni) \ 81 _IF_QLEN(&(_ni)->ni_savedq) 82 #define IEEE80211_NODE_SAVEQ_LOCK(_ni) do { \ 83 IF_LOCK(&(_ni)->ni_savedq); \ 84 } while (0) 85 #define IEEE80211_NODE_SAVEQ_UNLOCK(_ni) do { \ 86 IF_UNLOCK(&(_ni)->ni_savedq); \ 87 } while (0) 88 #define IEEE80211_NODE_SAVEQ_DEQUEUE(_ni, _m, _qlen) do { \ 89 IEEE80211_NODE_SAVEQ_LOCK(_ni); \ 90 _IF_DEQUEUE(&(_ni)->ni_savedq, _m); \ 91 (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni); \ 92 IEEE80211_NODE_SAVEQ_UNLOCK(_ni); \ 93 } while (0) 94 #define IEEE80211_NODE_SAVEQ_DRAIN(_ni, _qlen) do { \ 95 IEEE80211_NODE_SAVEQ_LOCK(_ni); \ 96 (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni); \ 97 _IF_DRAIN(&(_ni)->ni_savedq); \ 98 IEEE80211_NODE_SAVEQ_UNLOCK(_ni); \ 99 } while (0) 100 /* XXX could be optimized */ 101 #define _IEEE80211_NODE_SAVEQ_DEQUEUE_HEAD(_ni, _m) do { \ 102 _IF_DEQUEUE(&(_ni)->ni_savedq, m); \ 103 } while (0) 104 #define _IEEE80211_NODE_SAVEQ_ENQUEUE(_ni, _m, _qlen, _age) do {\ 105 (_m)->m_nextpkt = NULL; \ 106 if ((_ni)->ni_savedq.ifq_tail != NULL) { \ 107 _age -= M_AGE_GET((_ni)->ni_savedq.ifq_tail); \ 108 (_ni)->ni_savedq.ifq_tail->m_nextpkt = (_m); \ 109 } else { \ 110 (_ni)->ni_savedq.ifq_head = (_m); \ 111 } \ 112 M_AGE_SET(_m, _age); \ 113 (_ni)->ni_savedq.ifq_tail = (_m); \ 114 (_qlen) = ++(_ni)->ni_savedq.ifq_len; \ 115 } while (0) 116 117 /* 118 * 802.1x MAC ACL database locking definitions. 119 */ 120 typedef struct mtx acl_lock_t; 121 #define ACL_LOCK_INIT(_as, _name) \ 122 mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF) 123 #define ACL_LOCK_DESTROY(_as) mtx_destroy(&(_as)->as_lock) 124 #define ACL_LOCK(_as) mtx_lock(&(_as)->as_lock) 125 #define ACL_UNLOCK(_as) mtx_unlock(&(_as)->as_lock) 126 #define ACL_LOCK_ASSERT(_as) \ 127 mtx_assert((&(_as)->as_lock), MA_OWNED) 128 129 /* 130 * Node reference counting definitions. 131 * 132 * ieee80211_node_initref initialize the reference count to 1 133 * ieee80211_node_incref add a reference 134 * ieee80211_node_decref remove a reference 135 * ieee80211_node_dectestref remove a reference and return 1 if this 136 * is the last reference, otherwise 0 137 * ieee80211_node_refcnt reference count for printing (only) 138 */ 139 #include <machine/atomic.h> 140 141 #define ieee80211_node_initref(_ni) \ 142 do { ((_ni)->ni_refcnt = 1); } while (0) 143 #define ieee80211_node_incref(_ni) \ 144 atomic_add_int(&(_ni)->ni_refcnt, 1) 145 #define ieee80211_node_decref(_ni) \ 146 atomic_subtract_int(&(_ni)->ni_refcnt, 1) 147 struct ieee80211_node; 148 int ieee80211_node_dectestref(struct ieee80211_node *ni); 149 #define ieee80211_node_refcnt(_ni) (_ni)->ni_refcnt 150 151 struct mbuf *ieee80211_getmgtframe(u_int8_t **frm, u_int pktlen); 152 #define M_LINK0 M_PROTO1 /* WEP requested */ 153 #define M_PWR_SAV M_PROTO4 /* bypass PS handling */ 154 #define M_MORE_DATA M_PROTO5 /* more data frames to follow */ 155 /* 156 * Encode WME access control bits in the PROTO flags. 157 * This is safe since it's passed directly in to the 158 * driver and there's no chance someone else will clobber 159 * them on us. 160 */ 161 #define M_WME_AC_MASK (M_PROTO2|M_PROTO3) 162 /* XXX 5 is wrong if M_PROTO* are redefined */ 163 #define M_WME_AC_SHIFT 5 164 165 #define M_WME_SETAC(m, ac) \ 166 ((m)->m_flags = ((m)->m_flags &~ M_WME_AC_MASK) | \ 167 ((ac) << M_WME_AC_SHIFT)) 168 #define M_WME_GETAC(m) (((m)->m_flags >> M_WME_AC_SHIFT) & 0x3) 169 170 /* 171 * Mbufs on the power save queue are tagged with an age and 172 * timed out. We reuse the hardware checksum field in the 173 * mbuf packet header to store this data. 174 */ 175 #define M_AGE_SET(m,v) (m->m_pkthdr.csum_data = v) 176 #define M_AGE_GET(m) (m->m_pkthdr.csum_data) 177 #define M_AGE_SUB(m,adj) (m->m_pkthdr.csum_data -= adj) 178 179 void get_random_bytes(void *, size_t); 180 181 struct ieee80211com; 182 183 void ieee80211_sysctl_attach(struct ieee80211com *); 184 void ieee80211_sysctl_detach(struct ieee80211com *); 185 186 void ieee80211_load_module(const char *); 187 188 /* XXX this stuff belongs elsewhere */ 189 /* 190 * Message formats for messages from the net80211 layer to user 191 * applications via the routing socket. These messages are appended 192 * to an if_announcemsghdr structure. 193 */ 194 struct ieee80211_join_event { 195 uint8_t iev_addr[6]; 196 }; 197 198 struct ieee80211_leave_event { 199 uint8_t iev_addr[6]; 200 }; 201 202 struct ieee80211_replay_event { 203 uint8_t iev_src[6]; /* src MAC */ 204 uint8_t iev_dst[6]; /* dst MAC */ 205 uint8_t iev_cipher; /* cipher type */ 206 uint8_t iev_keyix; /* key id/index */ 207 uint64_t iev_keyrsc; /* RSC from key */ 208 uint64_t iev_rsc; /* RSC from frame */ 209 }; 210 211 struct ieee80211_michael_event { 212 uint8_t iev_src[6]; /* src MAC */ 213 uint8_t iev_dst[6]; /* dst MAC */ 214 uint8_t iev_cipher; /* cipher type */ 215 uint8_t iev_keyix; /* key id/index */ 216 }; 217 218 #define RTM_IEEE80211_ASSOC 100 /* station associate (bss mode) */ 219 #define RTM_IEEE80211_REASSOC 101 /* station re-associate (bss mode) */ 220 #define RTM_IEEE80211_DISASSOC 102 /* station disassociate (bss mode) */ 221 #define RTM_IEEE80211_JOIN 103 /* station join (ap mode) */ 222 #define RTM_IEEE80211_LEAVE 104 /* station leave (ap mode) */ 223 #define RTM_IEEE80211_SCAN 105 /* scan complete, results available */ 224 #define RTM_IEEE80211_REPLAY 106 /* sequence counter replay detected */ 225 #define RTM_IEEE80211_MICHAEL 107 /* Michael MIC failure detected */ 226 #define RTM_IEEE80211_REJOIN 108 /* station re-associate (ap mode) */ 227 228 #endif /* _NET80211_IEEE80211_FREEBSD_H_ */ 229