ieee80211_node.h revision 1.23.4.1
1 /* $NetBSD: ieee80211_node.h,v 1.23.4.1 2008/02/22 16:50:25 skrll Exp $ */ 2 /*- 3 * Copyright (c) 2001 Atsushi Onoe 4 * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 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: src/sys/net80211/ieee80211_node.h,v 1.30 2007/11/02 05:22:25 sam Exp $ 28 */ 29 #ifndef _NET80211_IEEE80211_NODE_H_ 30 #define _NET80211_IEEE80211_NODE_H_ 31 32 #include <net80211/ieee80211_netbsd.h> 33 #include <net80211/ieee80211_ioctl.h> /* for ieee80211_nodestats */ 34 #include <net80211/ieee80211_ht.h> /* for aggregation state */ 35 36 #ifdef _KERNEL 37 /* 38 * Each ieee80211com instance has a single timer that fires once a 39 * second. This is used to initiate various work depending on the 40 * state of the instance: scanning (passive or active), ``transition'' 41 * (waiting for a response to a management frame when operating 42 * as a station), and node inactivity processing (when operating 43 * as an AP). For inactivity processing each node has a timeout 44 * set in it's ni_inact field that is decremented on each timeout 45 * and the node is reclaimed when the counter goes to zero. We 46 * use different inactivity timeout values depending on whether 47 * the node is associated and authorized (either by 802.1x or 48 * open/shared key authentication) or associated but yet to be 49 * authorized. The latter timeout is shorter to more aggressively 50 * reclaim nodes that leave part way through the 802.1x exchange. 51 */ 52 #define IEEE80211_INACT_WAIT 15 /* inactivity interval (secs) */ 53 #define IEEE80211_INACT_INIT (30/IEEE80211_INACT_WAIT) /* initial */ 54 #define IEEE80211_INACT_AUTH (180/IEEE80211_INACT_WAIT) /* associated but not authorized */ 55 #define IEEE80211_INACT_RUN (300/IEEE80211_INACT_WAIT) /* authorized */ 56 #define IEEE80211_INACT_PROBE (30/IEEE80211_INACT_WAIT) /* probe */ 57 #define IEEE80211_INACT_SCAN (300/IEEE80211_INACT_WAIT) /* scanned */ 58 59 #define IEEE80211_TRANS_WAIT 2 /* mgt frame tx timer (secs) */ 60 61 /* threshold for aging overlapping non-ERP bss */ 62 #define IEEE80211_NONERP_PRESENT_AGE msecs_to_ticks(60*1000) 63 64 #define IEEE80211_NODE_HASHSIZE 32 65 /* simple hash is enough for variation of macaddr */ 66 #define IEEE80211_NODE_HASH(addr) \ 67 (((const uint8_t *)(addr))[IEEE80211_ADDR_LEN - 1] % \ 68 IEEE80211_NODE_HASHSIZE) 69 70 struct ieee80211_rsnparms { 71 uint8_t rsn_mcastcipher; /* mcast/group cipher */ 72 uint8_t rsn_mcastkeylen; /* mcast key length */ 73 uint8_t rsn_ucastcipherset; /* unicast cipher set */ 74 uint8_t rsn_ucastcipher; /* selected unicast cipher */ 75 uint8_t rsn_ucastkeylen; /* unicast key length */ 76 uint8_t rsn_keymgmtset; /* key mangement algorithms */ 77 uint8_t rsn_keymgmt; /* selected key mgmt algo */ 78 uint16_t rsn_caps; /* capabilities */ 79 }; 80 81 struct ieee80211_node_table; 82 struct ieee80211com; 83 84 /* 85 * Node specific information. Note that drivers are expected 86 * to derive from this structure to add device-specific per-node 87 * state. This is done by overriding the ic_node_* methods in 88 * the ieee80211com structure. 89 */ 90 struct ieee80211_node { 91 struct ieee80211com *ni_ic; 92 struct ieee80211_node_table *ni_table; 93 TAILQ_ENTRY(ieee80211_node) ni_list; 94 LIST_ENTRY(ieee80211_node) ni_hash; 95 u_int ni_refcnt; 96 u_int ni_scangen; /* gen# for timeout scan */ 97 uint8_t ni_authmode; /* authentication algorithm */ 98 uint8_t ni_ath_flags; /* Atheros feature flags */ 99 /* NB: These must have the same values as IEEE80211_ATHC_* */ 100 #define IEEE80211_NODE_TURBOP 0x0001 /* Turbo prime enable */ 101 #define IEEE80211_NODE_COMP 0x0002 /* Compresssion enable */ 102 #define IEEE80211_NODE_FF 0x0004 /* Fast Frame capable */ 103 #define IEEE80211_NODE_XR 0x0008 /* Atheros WME enable */ 104 #define IEEE80211_NODE_AR 0x0010 /* AR capable */ 105 #define IEEE80211_NODE_BOOST 0x0080 106 #define IEEE80211_NODE_PSUPDATE 0x0200 /* power save state changed */ 107 #define IEEE80211_NODE_CHWUPDATE 0x0400 /* 11n channel width change */ 108 uint16_t ni_flags; /* special-purpose state */ 109 #define IEEE80211_NODE_AUTH 0x0001 /* authorized for data */ 110 #define IEEE80211_NODE_QOS 0x0002 /* QoS enabled */ 111 #define IEEE80211_NODE_ERP 0x0004 /* ERP enabled */ 112 /* NB: this must have the same value as IEEE80211_FC1_PWR_MGT */ 113 #define IEEE80211_NODE_PWR_MGT 0x0010 /* power save mode enabled */ 114 #define IEEE80211_NODE_AREF 0x0020 /* authentication ref held */ 115 #define IEEE80211_NODE_HT 0x0040 /* HT enabled */ 116 #define IEEE80211_NODE_HTCOMPAT 0x0080 /* HT setup w/ vendor OUI's */ 117 #define IEEE80211_NODE_AMPDU_RX 0x0400 /* AMPDU rx enabled */ 118 #define IEEE80211_NODE_AMPDU_TX 0x0800 /* AMPDU tx enabled */ 119 uint16_t ni_ath_defkeyix;/* Atheros def key index */ 120 uint16_t ni_associd; /* assoc response */ 121 uint16_t ni_txpower; /* current transmit power */ 122 uint16_t ni_vlan; /* vlan tag */ 123 uint32_t ni_jointime; /* time of join (secs) */ 124 uint32_t *ni_challenge; /* shared-key challenge */ 125 uint8_t *ni_wpa_ie; /* captured WPA ie */ 126 uint8_t *ni_rsn_ie; /* captured RSN ie */ 127 uint8_t *ni_wme_ie; /* captured WME ie */ 128 uint8_t *ni_ath_ie; /* captured Atheros ie */ 129 /* tx seq per-tid */ 130 uint16_t ni_txseqs[IEEE80211_TID_SIZE]; 131 /* rx seq previous per-tid*/ 132 uint16_t ni_rxseqs[IEEE80211_TID_SIZE]; 133 uint32_t ni_rxfragstamp; /* time stamp of last rx frag */ 134 struct mbuf *ni_rxfrag[3]; /* rx frag reassembly */ 135 struct ieee80211_rsnparms ni_rsn; /* RSN/WPA parameters */ 136 struct ieee80211_key ni_ucastkey; /* unicast key */ 137 138 /* hardware */ 139 uint32_t ni_rstamp; /* recv timestamp */ 140 int8_t ni_rssi; /* recv ssi */ 141 int8_t ni_noise; /* noise floor */ 142 143 /* header */ 144 uint8_t ni_macaddr[IEEE80211_ADDR_LEN]; 145 uint8_t ni_bssid[IEEE80211_ADDR_LEN]; 146 147 /* beacon, probe response */ 148 union { 149 uint8_t data[8]; 150 uint64_t tsf; 151 } ni_tstamp; /* from last rcv'd beacon */ 152 uint16_t ni_intval; /* beacon interval */ 153 uint16_t ni_capinfo; /* capabilities */ 154 uint8_t ni_esslen; 155 uint8_t ni_essid[IEEE80211_NWID_LEN]; 156 struct ieee80211_rateset ni_rates; /* negotiated rate set */ 157 struct ieee80211_channel *ni_chan; 158 uint16_t ni_fhdwell; /* FH only */ 159 uint8_t ni_fhindex; /* FH only */ 160 uint8_t ni_erp; /* ERP from beacon/probe resp */ 161 uint16_t ni_timoff; /* byte offset to TIM ie */ 162 uint8_t ni_dtim_period; /* DTIM period */ 163 uint8_t ni_dtim_count; /* DTIM count for last bcn */ 164 165 /* 11n state */ 166 uint8_t *ni_htcap_ie; /* captured HTCAP ie */ 167 uint16_t ni_htcap; /* HT capabilities */ 168 uint8_t ni_htparam; /* HT params */ 169 uint8_t ni_htctlchan; /* HT control channel */ 170 uint8_t ni_ht2ndchan; /* HT 2nd channel */ 171 uint8_t ni_htopmode; /* HT operating mode */ 172 uint8_t ni_htstbc; /* HT */ 173 uint8_t ni_reqcw; /* requested tx channel width */ 174 uint8_t ni_chw; /* negotiated channel width */ 175 struct ieee80211_htrateset ni_htrates; /* negotiated ht rate set */ 176 struct ieee80211_tx_ampdu ni_tx_ampdu[WME_NUM_AC]; 177 struct ieee80211_rx_ampdu ni_rx_ampdu[WME_NUM_TID]; 178 179 /* others */ 180 int ni_fails; /* failure count to associate */ 181 short ni_inact; /* inactivity mark count */ 182 short ni_inact_reload;/* inactivity reload value */ 183 int ni_txrate; /* index to ni_rates[] */ 184 struct ifqueue ni_savedq; /* ps-poll queue */ 185 struct ieee80211_nodestats ni_stats; /* per-node statistics */ 186 }; 187 MALLOC_DECLARE(M_80211_NODE); 188 189 #define IEEE80211_NODE_ATH (IEEE80211_NODE_FF | IEEE80211_NODE_TURBOP) 190 #define IEEE80211_NODE_AMPDU \ 191 (IEEE80211_NODE_AMPDU_RX | IEEE80211_NODE_AMPDU_TX) 192 193 #define IEEE80211_NODE_AID(ni) IEEE80211_AID(ni->ni_associd) 194 195 #define IEEE80211_NODE_STAT(ni,stat) (ni->ni_stats.ns_##stat++) 196 #define IEEE80211_NODE_STAT_ADD(ni,stat,v) (ni->ni_stats.ns_##stat += v) 197 #define IEEE80211_NODE_STAT_SET(ni,stat,v) (ni->ni_stats.ns_##stat = v) 198 199 static __inline struct ieee80211_node * 200 ieee80211_ref_node(struct ieee80211_node *ni) 201 { 202 ieee80211_node_incref(ni); 203 return ni; 204 } 205 206 static __inline void 207 ieee80211_unref_node(struct ieee80211_node **ni) 208 { 209 ieee80211_node_decref(*ni); 210 *ni = NULL; /* guard against use */ 211 } 212 213 struct ieee80211com; 214 215 void ieee80211_node_attach(struct ieee80211com *); 216 void ieee80211_node_lateattach(struct ieee80211com *); 217 void ieee80211_node_detach(struct ieee80211com *); 218 219 static __inline int 220 ieee80211_node_is_authorized(const struct ieee80211_node *ni) 221 { 222 return (ni->ni_flags & IEEE80211_NODE_AUTH); 223 } 224 225 void ieee80211_node_authorize(struct ieee80211_node *); 226 void ieee80211_node_unauthorize(struct ieee80211_node *); 227 228 void ieee80211_probe_curchan(struct ieee80211com *, int); 229 void ieee80211_create_ibss(struct ieee80211com*, struct ieee80211_channel *); 230 void ieee80211_reset_bss(struct ieee80211com *); 231 void ieee80211_setbsschan(struct ieee80211com *, struct ieee80211_channel *); 232 int ieee80211_ibss_merge(struct ieee80211_node *); 233 struct ieee80211_scan_entry; 234 int ieee80211_sta_join(struct ieee80211com *, 235 const struct ieee80211_scan_entry *); 236 void ieee80211_sta_leave(struct ieee80211com *, struct ieee80211_node *); 237 238 /* 239 * Table of ieee80211_node instances. Each ieee80211com 240 * has at least one for holding the scan candidates. 241 * When operating as an access point or in ibss mode there 242 * is a second table for associated stations or neighbors. 243 */ 244 struct ieee80211_node_table { 245 struct ieee80211com *nt_ic; /* back reference */ 246 ieee80211_node_lock_t nt_nodelock; /* on node table */ 247 TAILQ_HEAD(, ieee80211_node) nt_node; /* information of all nodes */ 248 LIST_HEAD(, ieee80211_node) nt_hash[IEEE80211_NODE_HASHSIZE]; 249 struct ieee80211_node **nt_keyixmap; /* key ix -> node map */ 250 int nt_keyixmax; /* keyixmap size */ 251 const char *nt_name; /* for debugging */ 252 ieee80211_scan_lock_t nt_scanlock; /* on nt_scangen */ 253 u_int nt_scangen; /* gen# for timeout scan */ 254 int nt_inact_init; /* initial node inact setting */ 255 }; 256 257 struct ieee80211_node *ieee80211_alloc_node( 258 struct ieee80211_node_table *, const uint8_t *); 259 struct ieee80211_node *ieee80211_tmp_node(struct ieee80211com *, 260 const uint8_t *macaddr); 261 struct ieee80211_node *ieee80211_dup_bss(struct ieee80211_node_table *, 262 const uint8_t *); 263 #ifdef IEEE80211_DEBUG_REFCNT 264 void ieee80211_free_node_debug(struct ieee80211_node *, 265 const char *func, int line); 266 struct ieee80211_node *ieee80211_find_node_debug(struct ieee80211_node_table *, 267 const uint8_t *, 268 const char *func, int line); 269 struct ieee80211_node * ieee80211_find_rxnode_debug(struct ieee80211com *, 270 const struct ieee80211_frame_min *, 271 const char *func, int line); 272 struct ieee80211_node * ieee80211_find_rxnode_withkey_debug( 273 struct ieee80211com *, 274 const struct ieee80211_frame_min *, uint16_t keyix, 275 const char *func, int line); 276 struct ieee80211_node * ieee80211_find_rxnode_withkey_debug( 277 struct ieee80211com *, 278 const struct ieee80211_frame_min *, uint16_t keyix, 279 const char *func, int line); 280 struct ieee80211_node *ieee80211_find_txnode_debug(struct ieee80211com *, 281 const uint8_t *, 282 const char *func, int line); 283 struct ieee80211_node *ieee80211_find_node_with_ssid_debug( 284 struct ieee80211_node_table *, const uint8_t *macaddr, 285 u_int ssidlen, const uint8_t *ssid, 286 const char *func, int line); 287 #define ieee80211_free_node(ni) \ 288 ieee80211_free_node_debug(ni, __func__, __LINE__) 289 #define ieee80211_find_node(nt, mac) \ 290 ieee80211_find_node_debug(nt, mac, __func__, __LINE__) 291 #define ieee80211_find_rxnode(nt, wh) \ 292 ieee80211_find_rxnode_debug(nt, wh, __func__, __LINE__) 293 #define ieee80211_find_rxnode_withkey(nt, wh, keyix) \ 294 ieee80211_find_rxnode_withkey_debug(nt, wh, keyix, __func__, __LINE__) 295 #define ieee80211_find_txnode(nt, mac) \ 296 ieee80211_find_txnode_debug(nt, mac, __func__, __LINE__) 297 #define ieee80211_find_node_with_ssid(nt, mac, sl, ss) \ 298 ieee80211_find_node_with_ssid_debug(nt, mac, sl, ss, __func__, __LINE__) 299 #else 300 void ieee80211_free_node(struct ieee80211_node *); 301 struct ieee80211_node *ieee80211_find_node(struct ieee80211_node_table *, 302 const uint8_t *); 303 struct ieee80211_node * ieee80211_find_rxnode(struct ieee80211com *, 304 const struct ieee80211_frame_min *); 305 struct ieee80211_node * ieee80211_find_rxnode_withkey(struct ieee80211com *, 306 const struct ieee80211_frame_min *, uint16_t keyix); 307 struct ieee80211_node *ieee80211_find_txnode(struct ieee80211com *, 308 const uint8_t *); 309 struct ieee80211_node *ieee80211_find_node_with_ssid( 310 struct ieee80211_node_table *, const uint8_t *macaddr, 311 u_int ssidlen, const uint8_t *ssid); 312 #endif 313 int ieee80211_node_delucastkey(struct ieee80211_node *); 314 void ieee80211_node_timeout(void *arg); 315 316 struct ieee80211_node *ieee80211_refine_node_for_beacon( 317 struct ieee80211com *, struct ieee80211_node *, 318 struct ieee80211_channel *, const u_int8_t *ssid); 319 typedef void ieee80211_iter_func(void *, struct ieee80211_node *); 320 void ieee80211_iterate_nodes(struct ieee80211_node_table *, 321 ieee80211_iter_func *, void *); 322 323 void ieee80211_dump_node(struct ieee80211_node_table *, 324 struct ieee80211_node *); 325 void ieee80211_dump_nodes(struct ieee80211_node_table *); 326 327 void ieee80211_notify_erp(struct ieee80211com *); 328 329 struct ieee80211_node *ieee80211_fakeup_adhoc_node( 330 struct ieee80211_node_table *, const uint8_t macaddr[]); 331 struct ieee80211_scanparams; 332 void ieee80211_init_neighbor(struct ieee80211_node *, 333 const struct ieee80211_frame *, 334 const struct ieee80211_scanparams *); 335 struct ieee80211_node *ieee80211_add_neighbor(struct ieee80211com *, 336 const struct ieee80211_frame *, 337 const struct ieee80211_scanparams *); 338 void ieee80211_node_join(struct ieee80211com *, struct ieee80211_node *,int); 339 void ieee80211_node_leave(struct ieee80211com *, struct ieee80211_node *); 340 int8_t ieee80211_getrssi(struct ieee80211com *); 341 void ieee80211_getsignal(struct ieee80211com *, int8_t *, int8_t *); 342 #endif /* _KERNEL */ 343 #endif /* !_NET80211_IEEE80211_NODE_H_ */ 344
Indexes created Tue Sep 30 11:09:46 GMT 2025