ieee80211_freebsd.h revision 144302
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: head/sys/net80211/ieee80211_freebsd.h 144302 2005-03-29 19:36:42Z sam $ 28 */ 29#ifndef _NET80211_IEEE80211_FREEBSD_H_ 30#define _NET80211_IEEE80211_FREEBSD_H_ 31 32/* 33 * Beacon locking definitions. 34 */ 35typedef 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 */ 47typedef struct mtx ieee80211_node_lock_t; 48#define IEEE80211_NODE_LOCK_INIT(_nt, _name) \ 49 mtx_init(&(_nt)->nt_nodelock, _name, "802.11 node table", MTX_DEF) 50#define IEEE80211_NODE_LOCK_DESTROY(_nt) mtx_destroy(&(_nt)->nt_nodelock) 51#define IEEE80211_NODE_LOCK(_nt) mtx_lock(&(_nt)->nt_nodelock) 52#define IEEE80211_NODE_UNLOCK(_nt) mtx_unlock(&(_nt)->nt_nodelock) 53#define IEEE80211_NODE_LOCK_ASSERT(_nt) \ 54 mtx_assert(&(_nt)->nt_nodelock, MA_OWNED) 55 56/* 57 * Node table scangen locking definitions. 58 */ 59typedef struct mtx ieee80211_scan_lock_t; 60#define IEEE80211_SCAN_LOCK_INIT(_nt, _name) \ 61 mtx_init(&(_nt)->nt_scanlock, _name, "802.11 scangen", MTX_DEF) 62#define IEEE80211_SCAN_LOCK_DESTROY(_nt) mtx_destroy(&(_nt)->nt_scanlock) 63#define IEEE80211_SCAN_LOCK(_nt) mtx_lock(&(_nt)->nt_scanlock) 64#define IEEE80211_SCAN_UNLOCK(_nt) mtx_unlock(&(_nt)->nt_scanlock) 65#define IEEE80211_SCAN_LOCK_ASSERT(_nt) \ 66 mtx_assert(&(_nt)->nt_scanlock, MA_OWNED) 67 68/* 69 * Per-node power-save queue definitions. 70 */ 71#define IEEE80211_NODE_SAVEQ_INIT(_ni, _name) do { \ 72 mtx_init(&(_ni)->ni_savedq.ifq_mtx, _name, "802.11 ps queue", MTX_DEF);\ 73 (_ni)->ni_savedq.ifq_maxlen = IEEE80211_PS_MAX_QUEUE; \ 74} while (0) 75#define IEEE80211_NODE_SAVEQ_DESTROY(_ni) \ 76 mtx_destroy(&(_ni)->ni_savedq.ifq_mtx) 77#define IEEE80211_NODE_SAVEQ_QLEN(_ni) \ 78 _IF_QLEN(&(_ni)->ni_savedq) 79#define IEEE80211_NODE_SAVEQ_LOCK(_ni) do { \ 80 IF_LOCK(&(_ni)->ni_savedq); \ 81} while (0) 82#define IEEE80211_NODE_SAVEQ_UNLOCK(_ni) do { \ 83 IF_UNLOCK(&(_ni)->ni_savedq); \ 84} while (0) 85#define IEEE80211_NODE_SAVEQ_DEQUEUE(_ni, _m, _qlen) do { \ 86 IEEE80211_NODE_SAVEQ_LOCK(_ni); \ 87 _IF_DEQUEUE(&(_ni)->ni_savedq, _m); \ 88 (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni); \ 89 IEEE80211_NODE_SAVEQ_UNLOCK(_ni); \ 90} while (0) 91#define IEEE80211_NODE_SAVEQ_DRAIN(_ni, _qlen) do { \ 92 IEEE80211_NODE_SAVEQ_LOCK(_ni); \ 93 (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni); \ 94 _IF_DRAIN(&(_ni)->ni_savedq); \ 95 IEEE80211_NODE_SAVEQ_UNLOCK(_ni); \ 96} while (0) 97/* XXX could be optimized */ 98#define _IEEE80211_NODE_SAVEQ_DEQUEUE_HEAD(_ni, _m) do { \ 99 _IF_DEQUEUE(&(_ni)->ni_savedq, m); \ 100} while (0) 101#define _IEEE80211_NODE_SAVEQ_ENQUEUE(_ni, _m, _qlen, _age) do {\ 102 (_m)->m_nextpkt = NULL; \ 103 if ((_ni)->ni_savedq.ifq_tail != NULL) { \ 104 _age -= M_AGE_GET((_ni)->ni_savedq.ifq_tail); \ 105 (_ni)->ni_savedq.ifq_tail->m_nextpkt = (_m); \ 106 } else { \ 107 (_ni)->ni_savedq.ifq_head = (_m); \ 108 } \ 109 M_AGE_SET(_m, _age); \ 110 (_ni)->ni_savedq.ifq_tail = (_m); \ 111 (_qlen) = ++(_ni)->ni_savedq.ifq_len; \ 112} while (0) 113 114/* 115 * 802.1x MAC ACL database locking definitions. 116 */ 117typedef struct mtx acl_lock_t; 118#define ACL_LOCK_INIT(_as, _name) \ 119 mtx_init(&(_as)->as_lock, _name, "802.11 ACL", MTX_DEF) 120#define ACL_LOCK_DESTROY(_as) mtx_destroy(&(_as)->as_lock) 121#define ACL_LOCK(_as) mtx_lock(&(_as)->as_lock) 122#define ACL_UNLOCK(_as) mtx_unlock(&(_as)->as_lock) 123#define ACL_LOCK_ASSERT(_as) \ 124 mtx_assert((&(_as)->as_lock), MA_OWNED) 125 126/* 127 * Node reference counting definitions. 128 * 129 * ieee80211_node_initref initialize the reference count to 1 130 * ieee80211_node_incref add a reference 131 * ieee80211_node_decref remove a reference 132 * ieee80211_node_dectestref remove a reference and return 1 if this 133 * is the last reference, otherwise 0 134 * ieee80211_node_refcnt reference count for printing (only) 135 */ 136#include <machine/atomic.h> 137 138#define ieee80211_node_initref(_ni) \ 139 do { ((_ni)->ni_refcnt = 1); } while (0) 140#define ieee80211_node_incref(_ni) \ 141 atomic_add_int(&(_ni)->ni_refcnt, 1) 142#define ieee80211_node_decref(_ni) \ 143 atomic_subtract_int(&(_ni)->ni_refcnt, 1) 144struct ieee80211_node; 145extern int ieee80211_node_dectestref(struct ieee80211_node *ni); 146#define ieee80211_node_refcnt(_ni) (_ni)->ni_refcnt 147 148extern struct mbuf *ieee80211_getmgtframe(u_int8_t **frm, u_int pktlen); 149#define M_LINK0 M_PROTO1 /* WEP requested */ 150#define M_PWR_SAV M_PROTO4 /* bypass PS handling */ 151/* 152 * Encode WME access control bits in the PROTO flags. 153 * This is safe since it's passed directly in to the 154 * driver and there's no chance someone else will clobber 155 * them on us. 156 */ 157#define M_WME_AC_MASK (M_PROTO2|M_PROTO3) 158/* XXX 5 is wrong if M_PROTO* are redefined */ 159#define M_WME_AC_SHIFT 5 160 161#define M_WME_SETAC(m, ac) \ 162 ((m)->m_flags = ((m)->m_flags &~ M_WME_AC_MASK) | \ 163 ((ac) << M_WME_AC_SHIFT)) 164#define M_WME_GETAC(m) (((m)->m_flags >> M_WME_AC_SHIFT) & 0x3) 165 166/* 167 * Mbufs on the power save queue are tagged with an age and 168 * timed out. We reuse the hardware checksum field in the 169 * mbuf packet header to store this data. 170 */ 171#define M_AGE_SET(m,v) (m->m_pkthdr.csum_data = v) 172#define M_AGE_GET(m) (m->m_pkthdr.csum_data) 173#define M_AGE_SUB(m,adj) (m->m_pkthdr.csum_data -= adj) 174 175extern void get_random_bytes(void *, size_t); 176 177struct ieee80211com; 178 179void ieee80211_sysctl_attach(struct ieee80211com *); 180void ieee80211_sysctl_detach(struct ieee80211com *); 181 182void ieee80211_load_module(const char *); 183 184/* XXX this stuff belongs elsewhere */ 185/* 186 * Message formats for messages from the net80211 layer to user 187 * applications via the routing socket. These messages are appended 188 * to an if_announcemsghdr structure. 189 */ 190struct ieee80211_join_event { 191 uint8_t iev_addr[6]; 192}; 193 194struct ieee80211_leave_event { 195 uint8_t iev_addr[6]; 196}; 197 198struct ieee80211_replay_event { 199 uint8_t iev_src[6]; /* src MAC */ 200 uint8_t iev_dst[6]; /* dst MAC */ 201 uint8_t iev_cipher; /* cipher type */ 202 uint8_t iev_keyix; /* key id/index */ 203 uint64_t iev_keyrsc; /* RSC from key */ 204 uint64_t iev_rsc; /* RSC from frame */ 205}; 206 207struct ieee80211_michael_event { 208 uint8_t iev_src[6]; /* src MAC */ 209 uint8_t iev_dst[6]; /* dst MAC */ 210 uint8_t iev_cipher; /* cipher type */ 211 uint8_t iev_keyix; /* key id/index */ 212}; 213 214#define RTM_IEEE80211_ASSOC 100 /* station associate (bss mode) */ 215#define RTM_IEEE80211_REASSOC 101 /* station re-associate (bss mode) */ 216#define RTM_IEEE80211_DISASSOC 102 /* station disassociate (bss mode) */ 217#define RTM_IEEE80211_JOIN 103 /* station join (ap mode) */ 218#define RTM_IEEE80211_LEAVE 104 /* station leave (ap mode) */ 219#define RTM_IEEE80211_SCAN 105 /* scan complete, results available */ 220#define RTM_IEEE80211_REPLAY 106 /* sequence counter replay detected */ 221#define RTM_IEEE80211_MICHAEL 107 /* Michael MIC failure detected */ 222#define RTM_IEEE80211_REJOIN 108 /* station re-associate (ap mode) */ 223 224#endif /* _NET80211_IEEE80211_FREEBSD_H_ */ 225