1 /* $OpenBSD: ieee80211_node.h,v 1.89 2021/10/11 09:01:06 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_RATESET_SISO_40 8 65 #define IEEE80211_HT_RATESET_SISO_SGI40 9 66 #define IEEE80211_HT_RATESET_MIMO2_40 10 67 #define IEEE80211_HT_RATESET_MIMO2_SGI40 11 68 #define IEEE80211_HT_RATESET_MIMO3_40 12 69 #define IEEE80211_HT_RATESET_MIMO3_SGI40 13 70 #define IEEE80211_HT_RATESET_MIMO4_40 14 71 #define IEEE80211_HT_RATESET_MIMO4_SGI40 15 72 #define IEEE80211_HT_NUM_RATESETS 16 73 74 /* Maximum number of rates in a HT rateset. */ 75 #define IEEE80211_HT_RATESET_MAX_NRATES 8 76 77 /* Number of MCS indices represented by struct ieee80211_ht_rateset. */ 78 #define IEEE80211_HT_RATESET_NUM_MCS 32 79 80 struct ieee80211_ht_rateset { 81 uint32_t nrates; 82 uint32_t rates[IEEE80211_HT_RATESET_MAX_NRATES]; /* 500 kbit/s units */ 83 84 /* 85 * This bitmask can only express MCS 0 - MCS 31. 86 * IEEE 802.11 defined 77 HT MCS in total but common hardware 87 * implementations tend to support MCS index 0 through 31 only. 88 */ 89 uint32_t mcs_mask; 90 91 /* Range of MCS indices represented in this rateset. */ 92 int min_mcs; 93 int max_mcs; 94 95 int chan40; 96 int sgi; 97 }; 98 99 extern const struct ieee80211_ht_rateset ieee80211_std_ratesets_11n[]; 100 101 /* Index into ieee80211_std_rateset_11ac[] array. */ 102 #define IEEE80211_VHT_RATESET_SISO 0 103 #define IEEE80211_VHT_RATESET_SISO_SGI 1 104 #define IEEE80211_VHT_RATESET_MIMO2 2 105 #define IEEE80211_VHT_RATESET_MIMO2_SGI 3 106 #define IEEE80211_VHT_RATESET_SISO_40 4 107 #define IEEE80211_VHT_RATESET_SISO_40_SGI 5 108 #define IEEE80211_VHT_RATESET_MIMO2_40 6 109 #define IEEE80211_VHT_RATESET_MIMO2_40_SGI 7 110 #define IEEE80211_VHT_RATESET_SISO_80 8 111 #define IEEE80211_VHT_RATESET_SISO_80_SGI 9 112 #define IEEE80211_VHT_RATESET_MIMO2_80 10 113 #define IEEE80211_VHT_RATESET_MIMO2_80_SGI 11 114 #define IEEE80211_VHT_NUM_RATESETS 12 115 116 /* Maximum number of rates in a HT rateset. */ 117 #define IEEE80211_VHT_RATESET_MAX_NRATES 10 118 119 struct ieee80211_vht_rateset { 120 uint32_t nrates; 121 uint32_t rates[IEEE80211_VHT_RATESET_MAX_NRATES]; /* 500 kbit/s units */ 122 123 /* Number of spatial streams used by rates in this rateset. */ 124 int num_ss; 125 126 int sgi; 127 }; 128 129 extern const struct ieee80211_vht_rateset ieee80211_std_ratesets_11ac[]; 130 131 enum ieee80211_node_state { 132 IEEE80211_STA_CACHE, /* cached node */ 133 IEEE80211_STA_BSS, /* ic->ic_bss, the network we joined */ 134 IEEE80211_STA_AUTH, /* successfully authenticated */ 135 IEEE80211_STA_ASSOC, /* successfully associated */ 136 IEEE80211_STA_COLLECT /* This node remains in the cache while 137 * the driver sends a de-auth message; 138 * afterward it should be freed to make room 139 * for a new node. 140 */ 141 }; 142 143 #define ieee80211_node_newstate(__ni, __state) \ 144 do { \ 145 (__ni)->ni_state = (__state); \ 146 } while (0) 147 148 enum ieee80211_node_psstate { 149 IEEE80211_PS_AWAKE, 150 IEEE80211_PS_DOZE 151 }; 152 153 #define IEEE80211_PS_MAX_QUEUE 50 /* maximum saved packets */ 154 155 /* Authenticator state machine: 4-Way Handshake (see 8.5.6.1.1) */ 156 enum { 157 RSNA_INITIALIZE, 158 RSNA_AUTHENTICATION, 159 RSNA_AUTHENTICATION_2, 160 RSNA_INITPMK, 161 RSNA_INITPSK, 162 RSNA_PTKSTART, 163 RSNA_PTKCALCNEGOTIATING, 164 RSNA_PTKCALCNEGOTIATING_2, 165 RSNA_PTKINITNEGOTIATING, 166 RSNA_PTKINITDONE, 167 RSNA_DISCONNECT, 168 RSNA_DISCONNECTED 169 }; 170 171 /* Authenticator state machine: Group Key Handshake (see 8.5.6.1.2) */ 172 enum { 173 RSNA_IDLE, 174 RSNA_REKEYNEGOTIATING, 175 RSNA_REKEYESTABLISHED, 176 RSNA_KEYERROR 177 }; 178 179 /* Supplicant state machine: 4-Way Handshake (not documented in standard) */ 180 enum { 181 RSNA_SUPP_INITIALIZE, /* not expecting any messages */ 182 RSNA_SUPP_PTKSTART, /* awaiting handshake message 1 */ 183 RSNA_SUPP_PTKNEGOTIATING, /* got message 1 and derived PTK */ 184 RSNA_SUPP_PTKDONE /* got message 3 and authenticated AP */ 185 }; 186 187 struct ieee80211_rxinfo { 188 u_int32_t rxi_flags; 189 u_int32_t rxi_tstamp; 190 int rxi_rssi; 191 }; 192 #define IEEE80211_RXI_HWDEC 0x00000001 193 #define IEEE80211_RXI_AMPDU_DONE 0x00000002 194 #define IEEE80211_RXI_HWDEC_SAME_PN 0x00000004 195 #define IEEE80211_RXI_SAME_SEQ 0x00000008 196 197 /* Block Acknowledgement Record */ 198 struct ieee80211_tx_ba { 199 struct ieee80211_node *ba_ni; /* backpointer for callbacks */ 200 struct timeout ba_to; 201 int ba_timeout_val; 202 int ba_state; 203 #define IEEE80211_BA_INIT 0 204 #define IEEE80211_BA_REQUESTED 1 205 #define IEEE80211_BA_AGREED 2 206 207 /* ADDBA parameter set field for this BA agreement. */ 208 u_int16_t ba_params; 209 210 /* These values are IEEE802.11 frame sequence numbers (0x0-0xfff) */ 211 u_int16_t ba_winstart; 212 u_int16_t ba_winend; 213 214 /* Number of A-MPDU subframes in reorder buffer. */ 215 u_int16_t ba_winsize; 216 #define IEEE80211_BA_MAX_WINSZ 64 /* corresponds to maximum ADDBA BUFSZ */ 217 218 u_int8_t ba_token; 219 220 /* Bitmap for ACK'd frames in the current BA window. */ 221 uint64_t ba_bitmap; 222 }; 223 224 struct ieee80211_rx_ba { 225 struct ieee80211_node *ba_ni; /* backpointer for callbacks */ 226 struct { 227 struct mbuf *m; 228 struct ieee80211_rxinfo rxi; 229 } *ba_buf; 230 struct timeout ba_to; 231 int ba_timeout_val; 232 int ba_state; 233 u_int16_t ba_params; 234 u_int16_t ba_winstart; 235 u_int16_t ba_winend; 236 u_int16_t ba_winsize; 237 u_int16_t ba_head; 238 struct timeout ba_gap_to; 239 #define IEEE80211_BA_GAP_TIMEOUT 300 /* msec */ 240 241 /* 242 * Counter for frames forced to wait in the reordering buffer 243 * due to a leading gap caused by one or more missing frames. 244 */ 245 int ba_gapwait; 246 247 /* Counter for consecutive frames which missed the BA window. */ 248 int ba_winmiss; 249 /* Sequence number of previous frame which missed the BA window. */ 250 uint16_t ba_missedsn; 251 /* Window moves forward after this many frames have missed it. */ 252 #define IEEE80211_BA_MAX_WINMISS 8 253 254 uint8_t ba_token; 255 }; 256 257 /* 258 * Node specific information. Note that drivers are expected 259 * to derive from this structure to add device-specific per-node 260 * state. This is done by overriding the ic_node_* methods in 261 * the ieee80211com structure. 262 */ 263 struct ieee80211_node { 264 RBT_ENTRY(ieee80211_node) ni_node; 265 266 struct ieee80211com *ni_ic; /* back-pointer */ 267 268 u_int ni_refcnt; 269 u_int ni_scangen; /* gen# for timeout scan */ 270 271 /* hardware */ 272 u_int32_t ni_rstamp; /* recv timestamp */ 273 u_int8_t ni_rssi; /* recv ssi */ 274 275 /* header */ 276 u_int8_t ni_macaddr[IEEE80211_ADDR_LEN]; 277 u_int8_t ni_bssid[IEEE80211_ADDR_LEN]; 278 279 /* beacon, probe response */ 280 u_int8_t ni_tstamp[8]; /* from last rcv'd beacon */ 281 u_int16_t ni_intval; /* beacon interval */ 282 u_int16_t ni_capinfo; /* capabilities */ 283 u_int8_t ni_esslen; 284 u_int8_t ni_essid[IEEE80211_NWID_LEN]; 285 struct ieee80211_rateset ni_rates; /* negotiated rate set */ 286 u_int8_t *ni_country; /* country information XXX */ 287 struct ieee80211_channel *ni_chan; 288 u_int8_t ni_erp; /* 11g only */ 289 290 /* DTIM and contention free period (CFP) */ 291 u_int8_t ni_dtimcount; 292 u_int8_t ni_dtimperiod; 293 #ifdef notyet 294 u_int8_t ni_cfpperiod; /* # of DTIMs between CFPs */ 295 u_int16_t ni_cfpduremain; /* remaining cfp duration */ 296 u_int16_t ni_cfpmaxduration;/* max CFP duration in TU */ 297 u_int16_t ni_nextdtim; /* time to next DTIM */ 298 u_int16_t ni_timoffset; 299 #endif 300 301 /* power saving mode */ 302 u_int8_t ni_pwrsave; 303 struct mbuf_queue ni_savedq; /* packets queued for pspoll */ 304 305 /* RSN */ 306 struct timeout ni_eapol_to; 307 u_int ni_rsn_state; 308 u_int ni_rsn_supp_state; 309 u_int ni_rsn_gstate; 310 u_int ni_rsn_retries; 311 u_int ni_supported_rsnprotos; 312 u_int ni_rsnprotos; 313 u_int ni_supported_rsnakms; 314 u_int ni_rsnakms; 315 u_int ni_rsnciphers; 316 enum ieee80211_cipher ni_rsngroupcipher; 317 enum ieee80211_cipher ni_rsngroupmgmtcipher; 318 u_int16_t ni_rsncaps; 319 enum ieee80211_cipher ni_rsncipher; 320 u_int8_t ni_nonce[EAPOL_KEY_NONCE_LEN]; 321 u_int8_t ni_pmk[IEEE80211_PMK_LEN]; 322 u_int8_t ni_pmkid[IEEE80211_PMKID_LEN]; 323 u_int64_t ni_replaycnt; 324 u_int8_t ni_replaycnt_ok; 325 u_int64_t ni_reqreplaycnt; 326 u_int8_t ni_reqreplaycnt_ok; 327 u_int8_t *ni_rsnie; 328 struct ieee80211_key ni_pairwise_key; 329 struct ieee80211_ptk ni_ptk; 330 u_int8_t ni_key_count; 331 int ni_port_valid; 332 333 /* SA Query */ 334 u_int16_t ni_sa_query_trid; 335 struct timeout ni_sa_query_to; 336 int ni_sa_query_count; 337 338 /* HT capabilities */ 339 uint16_t ni_htcaps; 340 uint8_t ni_ampdu_param; 341 uint8_t ni_rxmcs[howmany(80,NBBY)]; 342 uint16_t ni_max_rxrate; /* in Mb/s, 0 <= rate <= 1023 */ 343 uint8_t ni_tx_mcs_set; 344 uint16_t ni_htxcaps; 345 uint32_t ni_txbfcaps; 346 uint8_t ni_aselcaps; 347 348 /* HT operation */ 349 uint8_t ni_primary_chan; /* XXX corresponds to ni_chan */ 350 uint8_t ni_htop0; 351 uint16_t ni_htop1; 352 uint16_t ni_htop2; 353 uint8_t ni_basic_mcs[howmany(128,NBBY)]; 354 355 /* Timeout handlers which trigger Tx Block Ack negotiation. */ 356 struct timeout ni_addba_req_to[IEEE80211_NUM_TID]; 357 int ni_addba_req_intval[IEEE80211_NUM_TID]; 358 #define IEEE80211_ADDBA_REQ_INTVAL_MAX 30 /* in seconds */ 359 360 /* Block Ack records */ 361 struct ieee80211_tx_ba ni_tx_ba[IEEE80211_NUM_TID]; 362 struct ieee80211_rx_ba ni_rx_ba[IEEE80211_NUM_TID]; 363 364 int ni_txmcs; /* current MCS used for TX */ 365 int ni_vht_ss; /* VHT # spatial streams */ 366 367 /* others */ 368 u_int16_t ni_associd; /* assoc response */ 369 u_int16_t ni_txseq; /* seq to be transmitted */ 370 u_int16_t ni_rxseq; /* seq previous received */ 371 u_int16_t ni_qos_txseqs[IEEE80211_NUM_TID]; 372 u_int16_t ni_qos_rxseqs[IEEE80211_NUM_TID]; 373 int ni_fails; /* failure count to associate */ 374 uint32_t ni_assoc_fail; /* assoc failure reasons */ 375 #define IEEE80211_NODE_ASSOCFAIL_CHAN 0x01 376 #define IEEE80211_NODE_ASSOCFAIL_IBSS 0x02 377 #define IEEE80211_NODE_ASSOCFAIL_PRIVACY 0x04 378 #define IEEE80211_NODE_ASSOCFAIL_BASIC_RATE 0x08 379 #define IEEE80211_NODE_ASSOCFAIL_ESSID 0x10 380 #define IEEE80211_NODE_ASSOCFAIL_BSSID 0x20 381 #define IEEE80211_NODE_ASSOCFAIL_WPA_PROTO 0x40 382 #define IEEE80211_NODE_ASSOCFAIL_WPA_KEY 0x80 383 384 int ni_inact; /* inactivity mark count */ 385 int ni_txrate; /* index to ni_rates[] */ 386 int ni_state; 387 388 u_int32_t ni_flags; /* special-purpose state */ 389 #define IEEE80211_NODE_ERP 0x0001 390 #define IEEE80211_NODE_QOS 0x0002 391 #define IEEE80211_NODE_REKEY 0x0004 /* GTK rekeying in progress */ 392 #define IEEE80211_NODE_RXPROT 0x0008 /* RX protection ON */ 393 #define IEEE80211_NODE_TXPROT 0x0010 /* TX protection ON */ 394 #define IEEE80211_NODE_TXRXPROT \ 395 (IEEE80211_NODE_TXPROT | IEEE80211_NODE_RXPROT) 396 #define IEEE80211_NODE_RXMGMTPROT 0x0020 /* RX MMPDU protection ON */ 397 #define IEEE80211_NODE_TXMGMTPROT 0x0040 /* TX MMPDU protection ON */ 398 #define IEEE80211_NODE_MFP 0x0080 /* MFP negotiated */ 399 #define IEEE80211_NODE_PMK 0x0100 /* ni_pmk set */ 400 #define IEEE80211_NODE_PMKID 0x0200 /* ni_pmkid set */ 401 #define IEEE80211_NODE_HT 0x0400 /* HT negotiated */ 402 #define IEEE80211_NODE_SA_QUERY 0x0800 /* SA Query in progress */ 403 #define IEEE80211_NODE_SA_QUERY_FAILED 0x1000 /* last SA Query failed */ 404 #define IEEE80211_NODE_RSN_NEW_PTK 0x2000 /* expecting a new PTK */ 405 #define IEEE80211_NODE_HT_SGI20 0x4000 /* SGI on 20 MHz negotiated */ 406 #define IEEE80211_NODE_HT_SGI40 0x8000 /* SGI on 40 MHz negotiated */ 407 #define IEEE80211_NODE_VHT 0x10000 /* VHT negotiated */ 408 #define IEEE80211_NODE_HTCAP 0x20000 /* claims to support HT */ 409 410 /* If not NULL, this function gets called when ni_refcnt hits zero. */ 411 void (*ni_unref_cb)(struct ieee80211com *, 412 struct ieee80211_node *); 413 void * ni_unref_arg; 414 size_t ni_unref_arg_size; 415 }; 416 417 RBT_HEAD(ieee80211_tree, ieee80211_node); 418 419 struct ieee80211_ess_rbt { 420 RBT_ENTRY(ieee80211_ess_rbt) ess_rbt; 421 u_int8_t esslen; 422 u_int8_t essid[IEEE80211_NWID_LEN]; 423 struct ieee80211_node *ni2; 424 struct ieee80211_node *ni5; 425 struct ieee80211_node *ni; 426 }; 427 428 RBT_HEAD(ieee80211_ess_tree, ieee80211_ess_rbt); 429 430 static inline void 431 ieee80211_node_incref(struct ieee80211_node *ni) 432 { 433 int s; 434 435 s = splnet(); 436 ni->ni_refcnt++; 437 splx(s); 438 } 439 440 static inline u_int 441 ieee80211_node_decref(struct ieee80211_node *ni) 442 { 443 u_int refcnt; 444 int s; 445 446 s = splnet(); 447 refcnt = --ni->ni_refcnt; 448 splx(s); 449 return refcnt; 450 } 451 452 static inline struct ieee80211_node * 453 ieee80211_ref_node(struct ieee80211_node *ni) 454 { 455 ieee80211_node_incref(ni); 456 return ni; 457 } 458 459 static inline void 460 ieee80211_unref_node(struct ieee80211_node **ni) 461 { 462 ieee80211_node_decref(*ni); 463 *ni = NULL; /* guard against use */ 464 } 465 466 /* 467 * Check if the peer supports HT. 468 * Require a HT capabilities IE and at least one of the mandatory MCS. 469 * MCS 0-7 are mandatory but some APs have particular MCS disabled. 470 */ 471 static inline int 472 ieee80211_node_supports_ht(struct ieee80211_node *ni) 473 { 474 return ((ni->ni_flags & IEEE80211_NODE_HTCAP) && 475 ni->ni_rxmcs[0] & 0xff); 476 } 477 478 /* Check if the peer supports HT short guard interval (SGI) on 20 MHz. */ 479 static inline int 480 ieee80211_node_supports_ht_sgi20(struct ieee80211_node *ni) 481 { 482 return ieee80211_node_supports_ht(ni) && 483 (ni->ni_htcaps & IEEE80211_HTCAP_SGI20); 484 } 485 486 /* Check if the peer supports HT short guard interval (SGI) on 40 MHz. */ 487 static inline int 488 ieee80211_node_supports_ht_sgi40(struct ieee80211_node *ni) 489 { 490 return ieee80211_node_supports_ht(ni) && 491 (ni->ni_htcaps & IEEE80211_HTCAP_SGI40); 492 } 493 494 /* Check if the peer can receive frames sent on a 40 MHz channel. */ 495 static inline int 496 ieee80211_node_supports_ht_chan40(struct ieee80211_node *ni) 497 { 498 return (ieee80211_node_supports_ht(ni) && 499 (ni->ni_htcaps & IEEE80211_HTCAP_CBW20_40) && 500 (ni->ni_htop0 & IEEE80211_HTOP0_CHW)); 501 } 502 503 struct ieee80211com; 504 505 typedef void ieee80211_iter_func(void *, struct ieee80211_node *); 506 507 void ieee80211_node_attach(struct ifnet *); 508 void ieee80211_node_lateattach(struct ifnet *); 509 void ieee80211_node_detach(struct ifnet *); 510 511 void ieee80211_begin_scan(struct ifnet *); 512 void ieee80211_next_scan(struct ifnet *); 513 void ieee80211_end_scan(struct ifnet *); 514 void ieee80211_reset_scan(struct ifnet *); 515 struct ieee80211_node *ieee80211_alloc_node(struct ieee80211com *, 516 const u_int8_t *); 517 struct ieee80211_node *ieee80211_dup_bss(struct ieee80211com *, 518 const u_int8_t *); 519 struct ieee80211_node *ieee80211_find_node(struct ieee80211com *, 520 const u_int8_t *); 521 void ieee80211_ba_del(struct ieee80211_node *); 522 struct ieee80211_node *ieee80211_find_rxnode(struct ieee80211com *, 523 const struct ieee80211_frame *); 524 struct ieee80211_node *ieee80211_find_txnode(struct ieee80211com *, 525 const u_int8_t *); 526 struct ieee80211_node * 527 ieee80211_find_node_for_beacon(struct ieee80211com *, 528 const u_int8_t *, const struct ieee80211_channel *, 529 const char *, u_int8_t); 530 void ieee80211_release_node(struct ieee80211com *, 531 struct ieee80211_node *); 532 void ieee80211_node_cleanup(struct ieee80211com *, struct ieee80211_node *); 533 void ieee80211_free_allnodes(struct ieee80211com *, int); 534 void ieee80211_iterate_nodes(struct ieee80211com *, 535 ieee80211_iter_func *, void *); 536 void ieee80211_clean_cached(struct ieee80211com *); 537 void ieee80211_clean_nodes(struct ieee80211com *, int); 538 void ieee80211_setup_htcaps(struct ieee80211_node *, const uint8_t *, 539 uint8_t); 540 void ieee80211_clear_htcaps(struct ieee80211_node *); 541 int ieee80211_setup_htop(struct ieee80211_node *, const uint8_t *, 542 uint8_t, int); 543 int ieee80211_setup_rates(struct ieee80211com *, 544 struct ieee80211_node *, const u_int8_t *, const u_int8_t *, int); 545 void ieee80211_node_trigger_addba_req(struct ieee80211_node *, int); 546 int ieee80211_iserp_sta(const struct ieee80211_node *); 547 void ieee80211_count_longslotsta(void *, struct ieee80211_node *); 548 void ieee80211_count_nonerpsta(void *, struct ieee80211_node *); 549 void ieee80211_count_pssta(void *, struct ieee80211_node *); 550 void ieee80211_count_rekeysta(void *, struct ieee80211_node *); 551 void ieee80211_node_join(struct ieee80211com *, 552 struct ieee80211_node *, int); 553 void ieee80211_node_leave(struct ieee80211com *, 554 struct ieee80211_node *); 555 int ieee80211_match_bss(struct ieee80211com *, struct ieee80211_node *, int); 556 struct ieee80211_node *ieee80211_node_choose_bss(struct ieee80211com *, int, 557 struct ieee80211_node **); 558 void ieee80211_node_join_bss(struct ieee80211com *, struct ieee80211_node *); 559 void ieee80211_create_ibss(struct ieee80211com* , 560 struct ieee80211_channel *); 561 void ieee80211_notify_dtim(struct ieee80211com *); 562 void ieee80211_set_tim(struct ieee80211com *, int, int); 563 void ieee80211_free_node(struct ieee80211com *, struct ieee80211_node *); 564 565 int ieee80211_node_cmp(const struct ieee80211_node *, 566 const struct ieee80211_node *); 567 int ieee80211_ess_cmp(const struct ieee80211_ess_rbt *, 568 const struct ieee80211_ess_rbt *); 569 RBT_PROTOTYPE(ieee80211_tree, ieee80211_node, ni_node, ieee80211_node_cmp); 570 RBT_PROTOTYPE(ieee80211_ess_tree, ieee80211_ess_rbt, ess_rbt, ieee80211_ess_cmp); 571 572 #endif /* _NET80211_IEEE80211_NODE_H_ */ 573