1 /* $OpenBSD: ieee80211_node.h,v 1.87 2020/07/21 08:38:59 stsp Exp $ */ 2 /* $NetBSD: ieee80211_node.h,v 1.9 2004/04/30 22:57:32 dyoung Exp $ */ 3 4 /*- 5 * Copyright (c) 2001 Atsushi Onoe 6 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD: src/sys/net80211/ieee80211_node.h,v 1.10 2004/04/05 22:10:26 sam Exp $ 32 */ 33 #ifndef _NET80211_IEEE80211_NODE_H_ 34 #define _NET80211_IEEE80211_NODE_H_ 35 36 #include <sys/tree.h> 37 38 #define IEEE80211_PSCAN_WAIT 5 /* passive scan wait */ 39 #define IEEE80211_TRANS_WAIT 5 /* transition wait */ 40 #define IEEE80211_INACT_WAIT 5 /* inactivity timer interval */ 41 #define IEEE80211_INACT_MAX (300/IEEE80211_INACT_WAIT) 42 #define IEEE80211_CACHE_SIZE 512 43 #define IEEE80211_CACHE_WAIT 30 44 #define IEEE80211_INACT_SCAN 10 /* for station mode */ 45 46 struct ieee80211_rateset { 47 u_int8_t rs_nrates; 48 u_int8_t rs_rates[IEEE80211_RATE_MAXSIZE]; 49 }; 50 51 extern const struct ieee80211_rateset ieee80211_std_rateset_11a; 52 extern const struct ieee80211_rateset ieee80211_std_rateset_11b; 53 extern const struct ieee80211_rateset ieee80211_std_rateset_11g; 54 55 /* Index into ieee80211_std_rateset_11n[] array. */ 56 #define IEEE80211_HT_RATESET_SISO 0 57 #define IEEE80211_HT_RATESET_SISO_SGI 1 58 #define IEEE80211_HT_RATESET_MIMO2 2 59 #define IEEE80211_HT_RATESET_MIMO2_SGI 3 60 #define IEEE80211_HT_RATESET_MIMO3 4 61 #define IEEE80211_HT_RATESET_MIMO3_SGI 5 62 #define IEEE80211_HT_RATESET_MIMO4 6 63 #define IEEE80211_HT_RATESET_MIMO4_SGI 7 64 #define IEEE80211_HT_NUM_RATESETS 8 65 66 /* Maximum number of rates in a HT rateset. */ 67 #define IEEE80211_HT_RATESET_MAX_NRATES 8 68 69 /* Number of MCS indices represented by struct ieee80211_ht_rateset. */ 70 #define IEEE80211_HT_RATESET_NUM_MCS 32 71 72 struct ieee80211_ht_rateset { 73 uint32_t nrates; 74 uint32_t rates[IEEE80211_HT_RATESET_MAX_NRATES]; /* 500 kbit/s units */ 75 76 /* 77 * This bitmask can only express MCS 0 - MCS 31. 78 * IEEE 802.11 defined 77 HT MCS in total but common hardware 79 * implementations tend to support MCS index 0 through 31 only. 80 */ 81 uint32_t mcs_mask; 82 83 /* Range of MCS indices represented in this rateset. */ 84 int min_mcs; 85 int max_mcs; 86 87 int sgi; 88 }; 89 90 extern const struct ieee80211_ht_rateset ieee80211_std_ratesets_11n[]; 91 92 /* Index into ieee80211_std_rateset_11ac[] array. */ 93 #define IEEE80211_VHT_RATESET_SISO 0 94 #define IEEE80211_VHT_RATESET_SISO_SGI 1 95 #define IEEE80211_VHT_RATESET_MIMO2 2 96 #define IEEE80211_VHT_RATESET_MIMO2_SGI 3 97 #define IEEE80211_VHT_RATESET_SISO_40 4 98 #define IEEE80211_VHT_RATESET_SISO_40_SGI 5 99 #define IEEE80211_VHT_RATESET_MIMO2_40 6 100 #define IEEE80211_VHT_RATESET_MIMO2_40_SGI 7 101 #define IEEE80211_VHT_RATESET_SISO_80 8 102 #define IEEE80211_VHT_RATESET_SISO_80_SGI 9 103 #define IEEE80211_VHT_RATESET_MIMO2_80 10 104 #define IEEE80211_VHT_RATESET_MIMO2_80_SGI 11 105 #define IEEE80211_VHT_NUM_RATESETS 12 106 107 /* Maximum number of rates in a HT rateset. */ 108 #define IEEE80211_VHT_RATESET_MAX_NRATES 10 109 110 struct ieee80211_vht_rateset { 111 uint32_t nrates; 112 uint32_t rates[IEEE80211_VHT_RATESET_MAX_NRATES]; /* 500 kbit/s units */ 113 114 /* Number of spatial streams used by rates in this rateset. */ 115 int num_ss; 116 117 int sgi; 118 }; 119 120 extern const struct ieee80211_vht_rateset ieee80211_std_ratesets_11ac[]; 121 122 enum ieee80211_node_state { 123 IEEE80211_STA_CACHE, /* cached node */ 124 IEEE80211_STA_BSS, /* ic->ic_bss, the network we joined */ 125 IEEE80211_STA_AUTH, /* successfully authenticated */ 126 IEEE80211_STA_ASSOC, /* successfully associated */ 127 IEEE80211_STA_COLLECT /* This node remains in the cache while 128 * the driver sends a de-auth message; 129 * afterward it should be freed to make room 130 * for a new node. 131 */ 132 }; 133 134 #define ieee80211_node_newstate(__ni, __state) \ 135 do { \ 136 (__ni)->ni_state = (__state); \ 137 } while (0) 138 139 enum ieee80211_node_psstate { 140 IEEE80211_PS_AWAKE, 141 IEEE80211_PS_DOZE 142 }; 143 144 #define IEEE80211_PS_MAX_QUEUE 50 /* maximum saved packets */ 145 146 /* Authenticator state machine: 4-Way Handshake (see 8.5.6.1.1) */ 147 enum { 148 RSNA_INITIALIZE, 149 RSNA_AUTHENTICATION, 150 RSNA_AUTHENTICATION_2, 151 RSNA_INITPMK, 152 RSNA_INITPSK, 153 RSNA_PTKSTART, 154 RSNA_PTKCALCNEGOTIATING, 155 RSNA_PTKCALCNEGOTIATING_2, 156 RSNA_PTKINITNEGOTIATING, 157 RSNA_PTKINITDONE, 158 RSNA_DISCONNECT, 159 RSNA_DISCONNECTED 160 }; 161 162 /* Authenticator state machine: Group Key Handshake (see 8.5.6.1.2) */ 163 enum { 164 RSNA_IDLE, 165 RSNA_REKEYNEGOTIATING, 166 RSNA_REKEYESTABLISHED, 167 RSNA_KEYERROR 168 }; 169 170 /* Supplicant state machine: 4-Way Handshake (not documented in standard) */ 171 enum { 172 RSNA_SUPP_INITIALIZE, /* not expecting any messages */ 173 RSNA_SUPP_PTKSTART, /* awaiting handshake message 1 */ 174 RSNA_SUPP_PTKNEGOTIATING, /* got message 1 and derived PTK */ 175 RSNA_SUPP_PTKDONE /* got message 3 and authenticated AP */ 176 }; 177 178 struct ieee80211_rxinfo { 179 u_int32_t rxi_flags; 180 u_int32_t rxi_tstamp; 181 int rxi_rssi; 182 }; 183 #define IEEE80211_RXI_HWDEC 0x00000001 184 #define IEEE80211_RXI_AMPDU_DONE 0x00000002 185 186 /* Block Acknowledgement Record */ 187 struct ieee80211_tx_ba { 188 struct ieee80211_node *ba_ni; /* backpointer for callbacks */ 189 struct timeout ba_to; 190 int ba_timeout_val; 191 int ba_state; 192 #define IEEE80211_BA_INIT 0 193 #define IEEE80211_BA_REQUESTED 1 194 #define IEEE80211_BA_AGREED 2 195 196 /* ADDBA parameter set field for this BA agreement. */ 197 u_int16_t ba_params; 198 199 /* These values are IEEE802.11 frame sequence numbers (0x0-0xfff) */ 200 u_int16_t ba_winstart; 201 u_int16_t ba_winend; 202 203 /* Number of A-MPDU subframes in reorder buffer. */ 204 u_int16_t ba_winsize; 205 #define IEEE80211_BA_MAX_WINSZ 64 /* corresponds to maximum ADDBA BUFSZ */ 206 207 u_int8_t ba_token; 208 209 /* Bitmap for ACK'd frames in the current BA window. */ 210 uint64_t ba_bitmap; 211 }; 212 213 struct ieee80211_rx_ba { 214 struct ieee80211_node *ba_ni; /* backpointer for callbacks */ 215 struct { 216 struct mbuf *m; 217 struct ieee80211_rxinfo rxi; 218 } *ba_buf; 219 struct timeout ba_to; 220 int ba_timeout_val; 221 int ba_state; 222 u_int16_t ba_params; 223 u_int16_t ba_winstart; 224 u_int16_t ba_winend; 225 u_int16_t ba_winsize; 226 u_int16_t ba_head; 227 struct timeout ba_gap_to; 228 #define IEEE80211_BA_GAP_TIMEOUT 300 /* msec */ 229 230 /* 231 * Counter for frames forced to wait in the reordering buffer 232 * due to a leading gap caused by one or more missing frames. 233 */ 234 int ba_gapwait; 235 236 /* Counter for consecutive frames which missed the BA window. */ 237 int ba_winmiss; 238 /* Sequence number of previous frame which missed the BA window. */ 239 uint16_t ba_missedsn; 240 /* Window moves forward after this many frames have missed it. */ 241 #define IEEE80211_BA_MAX_WINMISS 8 242 243 uint8_t ba_token; 244 }; 245 246 /* 247 * Node specific information. Note that drivers are expected 248 * to derive from this structure to add device-specific per-node 249 * state. This is done by overriding the ic_node_* methods in 250 * the ieee80211com structure. 251 */ 252 struct ieee80211_node { 253 RBT_ENTRY(ieee80211_node) ni_node; 254 255 struct ieee80211com *ni_ic; /* back-pointer */ 256 257 u_int ni_refcnt; 258 u_int ni_scangen; /* gen# for timeout scan */ 259 260 /* hardware */ 261 u_int32_t ni_rstamp; /* recv timestamp */ 262 u_int8_t ni_rssi; /* recv ssi */ 263 264 /* header */ 265 u_int8_t ni_macaddr[IEEE80211_ADDR_LEN]; 266 u_int8_t ni_bssid[IEEE80211_ADDR_LEN]; 267 268 /* beacon, probe response */ 269 u_int8_t ni_tstamp[8]; /* from last rcv'd beacon */ 270 u_int16_t ni_intval; /* beacon interval */ 271 u_int16_t ni_capinfo; /* capabilities */ 272 u_int8_t ni_esslen; 273 u_int8_t ni_essid[IEEE80211_NWID_LEN]; 274 struct ieee80211_rateset ni_rates; /* negotiated rate set */ 275 u_int8_t *ni_country; /* country information XXX */ 276 struct ieee80211_channel *ni_chan; 277 u_int8_t ni_erp; /* 11g only */ 278 279 /* DTIM and contention free period (CFP) */ 280 u_int8_t ni_dtimcount; 281 u_int8_t ni_dtimperiod; 282 #ifdef notyet 283 u_int8_t ni_cfpperiod; /* # of DTIMs between CFPs */ 284 u_int16_t ni_cfpduremain; /* remaining cfp duration */ 285 u_int16_t ni_cfpmaxduration;/* max CFP duration in TU */ 286 u_int16_t ni_nextdtim; /* time to next DTIM */ 287 u_int16_t ni_timoffset; 288 #endif 289 290 /* power saving mode */ 291 u_int8_t ni_pwrsave; 292 struct mbuf_queue ni_savedq; /* packets queued for pspoll */ 293 294 /* RSN */ 295 struct timeout ni_eapol_to; 296 u_int ni_rsn_state; 297 u_int ni_rsn_supp_state; 298 u_int ni_rsn_gstate; 299 u_int ni_rsn_retries; 300 u_int ni_supported_rsnprotos; 301 u_int ni_rsnprotos; 302 u_int ni_supported_rsnakms; 303 u_int ni_rsnakms; 304 u_int ni_rsnciphers; 305 enum ieee80211_cipher ni_rsngroupcipher; 306 enum ieee80211_cipher ni_rsngroupmgmtcipher; 307 u_int16_t ni_rsncaps; 308 enum ieee80211_cipher ni_rsncipher; 309 u_int8_t ni_nonce[EAPOL_KEY_NONCE_LEN]; 310 u_int8_t ni_pmk[IEEE80211_PMK_LEN]; 311 u_int8_t ni_pmkid[IEEE80211_PMKID_LEN]; 312 u_int64_t ni_replaycnt; 313 u_int8_t ni_replaycnt_ok; 314 u_int64_t ni_reqreplaycnt; 315 u_int8_t ni_reqreplaycnt_ok; 316 u_int8_t *ni_rsnie; 317 struct ieee80211_key ni_pairwise_key; 318 struct ieee80211_ptk ni_ptk; 319 u_int8_t ni_key_count; 320 int ni_port_valid; 321 322 /* SA Query */ 323 u_int16_t ni_sa_query_trid; 324 struct timeout ni_sa_query_to; 325 int ni_sa_query_count; 326 327 /* HT capabilities */ 328 uint16_t ni_htcaps; 329 uint8_t ni_ampdu_param; 330 uint8_t ni_rxmcs[howmany(80,NBBY)]; 331 uint16_t ni_max_rxrate; /* in Mb/s, 0 <= rate <= 1023 */ 332 uint8_t ni_tx_mcs_set; 333 uint16_t ni_htxcaps; 334 uint32_t ni_txbfcaps; 335 uint8_t ni_aselcaps; 336 337 /* HT operation */ 338 uint8_t ni_primary_chan; /* XXX corresponds to ni_chan */ 339 uint8_t ni_htop0; 340 uint16_t ni_htop1; 341 uint16_t ni_htop2; 342 uint8_t ni_basic_mcs[howmany(128,NBBY)]; 343 344 /* Timeout handlers which trigger Tx Block Ack negotiation. */ 345 struct timeout ni_addba_req_to[IEEE80211_NUM_TID]; 346 int ni_addba_req_intval[IEEE80211_NUM_TID]; 347 #define IEEE80211_ADDBA_REQ_INTVAL_MAX 30 /* in seconds */ 348 349 /* Block Ack records */ 350 struct ieee80211_tx_ba ni_tx_ba[IEEE80211_NUM_TID]; 351 struct ieee80211_rx_ba ni_rx_ba[IEEE80211_NUM_TID]; 352 353 int ni_txmcs; /* current MCS used for TX */ 354 int ni_vht_ss; /* VHT # spatial streams */ 355 356 /* others */ 357 u_int16_t ni_associd; /* assoc response */ 358 u_int16_t ni_txseq; /* seq to be transmitted */ 359 u_int16_t ni_rxseq; /* seq previous received */ 360 u_int16_t ni_qos_txseqs[IEEE80211_NUM_TID]; 361 u_int16_t ni_qos_rxseqs[IEEE80211_NUM_TID]; 362 int ni_fails; /* failure count to associate */ 363 uint32_t ni_assoc_fail; /* assoc failure reasons */ 364 #define IEEE80211_NODE_ASSOCFAIL_CHAN 0x01 365 #define IEEE80211_NODE_ASSOCFAIL_IBSS 0x02 366 #define IEEE80211_NODE_ASSOCFAIL_PRIVACY 0x04 367 #define IEEE80211_NODE_ASSOCFAIL_BASIC_RATE 0x08 368 #define IEEE80211_NODE_ASSOCFAIL_ESSID 0x10 369 #define IEEE80211_NODE_ASSOCFAIL_BSSID 0x20 370 #define IEEE80211_NODE_ASSOCFAIL_WPA_PROTO 0x40 371 #define IEEE80211_NODE_ASSOCFAIL_WPA_KEY 0x80 372 373 int ni_inact; /* inactivity mark count */ 374 int ni_txrate; /* index to ni_rates[] */ 375 int ni_state; 376 377 u_int32_t ni_flags; /* special-purpose state */ 378 #define IEEE80211_NODE_ERP 0x0001 379 #define IEEE80211_NODE_QOS 0x0002 380 #define IEEE80211_NODE_REKEY 0x0004 /* GTK rekeying in progress */ 381 #define IEEE80211_NODE_RXPROT 0x0008 /* RX protection ON */ 382 #define IEEE80211_NODE_TXPROT 0x0010 /* TX protection ON */ 383 #define IEEE80211_NODE_TXRXPROT \ 384 (IEEE80211_NODE_TXPROT | IEEE80211_NODE_RXPROT) 385 #define IEEE80211_NODE_RXMGMTPROT 0x0020 /* RX MMPDU protection ON */ 386 #define IEEE80211_NODE_TXMGMTPROT 0x0040 /* TX MMPDU protection ON */ 387 #define IEEE80211_NODE_MFP 0x0080 /* MFP negotiated */ 388 #define IEEE80211_NODE_PMK 0x0100 /* ni_pmk set */ 389 #define IEEE80211_NODE_PMKID 0x0200 /* ni_pmkid set */ 390 #define IEEE80211_NODE_HT 0x0400 /* HT negotiated */ 391 #define IEEE80211_NODE_SA_QUERY 0x0800 /* SA Query in progress */ 392 #define IEEE80211_NODE_SA_QUERY_FAILED 0x1000 /* last SA Query failed */ 393 #define IEEE80211_NODE_RSN_NEW_PTK 0x2000 /* expecting a new PTK */ 394 #define IEEE80211_NODE_HT_SGI20 0x4000 /* SGI on 20 MHz negotiated */ 395 #define IEEE80211_NODE_HT_SGI40 0x8000 /* SGI on 40 MHz negotiated */ 396 #define IEEE80211_NODE_VHT 0x10000 /* VHT negotiated */ 397 #define IEEE80211_NODE_HTCAP 0x20000 /* claims to support HT */ 398 399 /* If not NULL, this function gets called when ni_refcnt hits zero. */ 400 void (*ni_unref_cb)(struct ieee80211com *, 401 struct ieee80211_node *); 402 void * ni_unref_arg; 403 size_t ni_unref_arg_size; 404 }; 405 406 RBT_HEAD(ieee80211_tree, ieee80211_node); 407 408 struct ieee80211_ess_rbt { 409 RBT_ENTRY(ieee80211_ess_rbt) ess_rbt; 410 u_int8_t esslen; 411 u_int8_t essid[IEEE80211_NWID_LEN]; 412 struct ieee80211_node *ni2; 413 struct ieee80211_node *ni5; 414 struct ieee80211_node *ni; 415 }; 416 417 RBT_HEAD(ieee80211_ess_tree, ieee80211_ess_rbt); 418 419 static inline void 420 ieee80211_node_incref(struct ieee80211_node *ni) 421 { 422 int s; 423 424 s = splnet(); 425 ni->ni_refcnt++; 426 splx(s); 427 } 428 429 static inline u_int 430 ieee80211_node_decref(struct ieee80211_node *ni) 431 { 432 u_int refcnt; 433 int s; 434 435 s = splnet(); 436 refcnt = --ni->ni_refcnt; 437 splx(s); 438 return refcnt; 439 } 440 441 static inline struct ieee80211_node * 442 ieee80211_ref_node(struct ieee80211_node *ni) 443 { 444 ieee80211_node_incref(ni); 445 return ni; 446 } 447 448 static inline void 449 ieee80211_unref_node(struct ieee80211_node **ni) 450 { 451 ieee80211_node_decref(*ni); 452 *ni = NULL; /* guard against use */ 453 } 454 455 /* 456 * Check if the peer supports HT. 457 * Require a HT capabilities IE and at least one of the mandatory MCS. 458 * MCS 0-7 are mandatory but some APs have particular MCS disabled. 459 */ 460 static inline int 461 ieee80211_node_supports_ht(struct ieee80211_node *ni) 462 { 463 return ((ni->ni_flags & IEEE80211_NODE_HTCAP) && 464 ni->ni_rxmcs[0] & 0xff); 465 } 466 467 /* Check if the peer supports HT short guard interval (SGI) on 20 MHz. */ 468 static inline int 469 ieee80211_node_supports_ht_sgi20(struct ieee80211_node *ni) 470 { 471 return ieee80211_node_supports_ht(ni) && 472 (ni->ni_htcaps & IEEE80211_HTCAP_SGI20); 473 } 474 475 /* Check if the peer supports HT short guard interval (SGI) on 40 MHz. */ 476 static inline int 477 ieee80211_node_supports_ht_sgi40(struct ieee80211_node *ni) 478 { 479 return ieee80211_node_supports_ht(ni) && 480 (ni->ni_htcaps & IEEE80211_HTCAP_SGI40); 481 } 482 483 struct ieee80211com; 484 485 typedef void ieee80211_iter_func(void *, struct ieee80211_node *); 486 487 void ieee80211_node_attach(struct ifnet *); 488 void ieee80211_node_lateattach(struct ifnet *); 489 void ieee80211_node_detach(struct ifnet *); 490 491 void ieee80211_begin_scan(struct ifnet *); 492 void ieee80211_next_scan(struct ifnet *); 493 void ieee80211_end_scan(struct ifnet *); 494 void ieee80211_reset_scan(struct ifnet *); 495 struct ieee80211_node *ieee80211_alloc_node(struct ieee80211com *, 496 const u_int8_t *); 497 struct ieee80211_node *ieee80211_dup_bss(struct ieee80211com *, 498 const u_int8_t *); 499 struct ieee80211_node *ieee80211_find_node(struct ieee80211com *, 500 const u_int8_t *); 501 void ieee80211_ba_del(struct ieee80211_node *); 502 struct ieee80211_node *ieee80211_find_rxnode(struct ieee80211com *, 503 const struct ieee80211_frame *); 504 struct ieee80211_node *ieee80211_find_txnode(struct ieee80211com *, 505 const u_int8_t *); 506 struct ieee80211_node * 507 ieee80211_find_node_for_beacon(struct ieee80211com *, 508 const u_int8_t *, const struct ieee80211_channel *, 509 const char *, u_int8_t); 510 void ieee80211_release_node(struct ieee80211com *, 511 struct ieee80211_node *); 512 void ieee80211_node_cleanup(struct ieee80211com *, struct ieee80211_node *); 513 void ieee80211_free_allnodes(struct ieee80211com *, int); 514 void ieee80211_iterate_nodes(struct ieee80211com *, 515 ieee80211_iter_func *, void *); 516 void ieee80211_clean_cached(struct ieee80211com *); 517 void ieee80211_clean_nodes(struct ieee80211com *, int); 518 void ieee80211_setup_htcaps(struct ieee80211_node *, const uint8_t *, 519 uint8_t); 520 void ieee80211_clear_htcaps(struct ieee80211_node *); 521 int ieee80211_setup_htop(struct ieee80211_node *, const uint8_t *, 522 uint8_t, int); 523 int ieee80211_setup_rates(struct ieee80211com *, 524 struct ieee80211_node *, const u_int8_t *, const u_int8_t *, int); 525 void ieee80211_node_trigger_addba_req(struct ieee80211_node *, int); 526 int ieee80211_iserp_sta(const struct ieee80211_node *); 527 void ieee80211_count_longslotsta(void *, struct ieee80211_node *); 528 void ieee80211_count_nonerpsta(void *, struct ieee80211_node *); 529 void ieee80211_count_pssta(void *, struct ieee80211_node *); 530 void ieee80211_count_rekeysta(void *, struct ieee80211_node *); 531 void ieee80211_node_join(struct ieee80211com *, 532 struct ieee80211_node *, int); 533 void ieee80211_node_leave(struct ieee80211com *, 534 struct ieee80211_node *); 535 int ieee80211_match_bss(struct ieee80211com *, struct ieee80211_node *, int); 536 struct ieee80211_node *ieee80211_node_choose_bss(struct ieee80211com *, int, 537 struct ieee80211_node **); 538 void ieee80211_node_join_bss(struct ieee80211com *, struct ieee80211_node *); 539 void ieee80211_create_ibss(struct ieee80211com* , 540 struct ieee80211_channel *); 541 void ieee80211_notify_dtim(struct ieee80211com *); 542 void ieee80211_set_tim(struct ieee80211com *, int, int); 543 void ieee80211_free_node(struct ieee80211com *, struct ieee80211_node *); 544 545 int ieee80211_node_cmp(const struct ieee80211_node *, 546 const struct ieee80211_node *); 547 int ieee80211_ess_cmp(const struct ieee80211_ess_rbt *, 548 const struct ieee80211_ess_rbt *); 549 RBT_PROTOTYPE(ieee80211_tree, ieee80211_node, ni_node, ieee80211_node_cmp); 550 RBT_PROTOTYPE(ieee80211_ess_tree, ieee80211_ess_rbt, ess_rbt, ieee80211_ess_cmp); 551 552 #endif /* _NET80211_IEEE80211_NODE_H_ */ 553