1/*- 2 * Copyright (c) 2020-2023 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Bj��rn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30/* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42#include <sys/param.h> 43#include <sys/types.h> 44#include <sys/kernel.h> 45#include <sys/errno.h> 46#include <sys/malloc.h> 47#include <sys/module.h> 48#include <sys/mutex.h> 49#include <sys/socket.h> 50#include <sys/sysctl.h> 51#include <sys/queue.h> 52#include <sys/taskqueue.h> 53#include <sys/libkern.h> 54 55#include <net/if.h> 56#include <net/if_var.h> 57#include <net/if_media.h> 58#include <net/ethernet.h> 59 60#include <net80211/ieee80211_var.h> 61#include <net80211/ieee80211_proto.h> 62#include <net80211/ieee80211_ratectl.h> 63#include <net80211/ieee80211_radiotap.h> 64#include <net80211/ieee80211_vht.h> 65 66#define LINUXKPI_NET80211 67#include <net/mac80211.h> 68 69#include <linux/workqueue.h> 70#include "linux_80211.h" 71 72#define LKPI_80211_WME 73/* #define LKPI_80211_HW_CRYPTO */ 74/* #define LKPI_80211_VHT */ 75/* #define LKPI_80211_HT */ 76#if defined(LKPI_80211_VHT) && !defined(LKPI_80211_HT) 77#define LKPI_80211_HT 78#endif 79 80static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 81 82/* XXX-BZ really want this and others in queue.h */ 83#define TAILQ_ELEM_INIT(elm, field) do { \ 84 (elm)->field.tqe_next = NULL; \ 85 (elm)->field.tqe_prev = NULL; \ 86} while (0) 87 88/* -------------------------------------------------------------------------- */ 89 90/* Keep public for as long as header files are using it too. */ 91int linuxkpi_debug_80211; 92 93#ifdef LINUXKPI_DEBUG_80211 94SYSCTL_DECL(_compat_linuxkpi); 95SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 96 "LinuxKPI 802.11 compatibility layer"); 97 98SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 99 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 100 101#define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 102 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 103#define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 104 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 105#else 106#define UNIMPLEMENTED do { } while (0) 107#define TRACEOK() do { } while (0) 108#endif 109 110/* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 111#ifndef PREP_TX_INFO_DURATION 112#define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 113#endif 114 115/* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 116const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 117 118/* IEEE 802.11-05/0257r1 */ 119const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 120 121/* IEEE 802.11e Table 20i-UP-to-AC mappings. */ 122static const uint8_t ieee80211e_up_to_ac[] = { 123 IEEE80211_AC_BE, 124 IEEE80211_AC_BK, 125 IEEE80211_AC_BK, 126 IEEE80211_AC_BE, 127 IEEE80211_AC_VI, 128 IEEE80211_AC_VI, 129 IEEE80211_AC_VO, 130 IEEE80211_AC_VO, 131#if 0 132 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 133#endif 134}; 135 136const struct cfg80211_ops linuxkpi_mac80211cfgops = { 137 /* 138 * XXX TODO need a "glue layer" to link cfg80211 ops to 139 * mac80211 and to the driver or net80211. 140 * Can we pass some on 1:1? Need to compare the (*f)(). 141 */ 142}; 143 144#if 0 145static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 146 struct ieee80211_node *); 147#endif 148static void lkpi_80211_txq_tx_one(struct lkpi_sta *, struct mbuf *); 149static void lkpi_80211_txq_task(void *, int); 150static void lkpi_80211_lhw_rxq_task(void *, int); 151static void lkpi_ieee80211_free_skb_mbuf(void *); 152#ifdef LKPI_80211_WME 153static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 154#endif 155 156#if defined(LKPI_80211_HT) 157static void 158lkpi_sta_sync_ht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *ht_rx_nss) 159{ 160 struct ieee80211vap *vap; 161 uint8_t *ie; 162 struct ieee80211_ht_cap *htcap; 163 int i, rx_nss; 164 165 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) 166 return; 167 168 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && 169 IEEE80211_IS_CHAN_HT40(ni->ni_chan)) 170 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_40; 171 172 sta->deflink.ht_cap.ht_supported = true; 173 174 /* htcap->ampdu_params_info */ 175 vap = ni->ni_vap; 176 sta->deflink.ht_cap.ampdu_density = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 177 if (sta->deflink.ht_cap.ampdu_density > vap->iv_ampdu_density) 178 sta->deflink.ht_cap.ampdu_density = vap->iv_ampdu_density; 179 sta->deflink.ht_cap.ampdu_factor = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 180 if (sta->deflink.ht_cap.ampdu_factor > vap->iv_ampdu_rxmax) 181 sta->deflink.ht_cap.ampdu_factor = vap->iv_ampdu_rxmax; 182 183 ie = ni->ni_ies.htcap_ie; 184 KASSERT(ie != NULL, ("%s: HT but no htcap_ie on ni %p\n", __func__, ni)); 185 if (ie[0] == IEEE80211_ELEMID_VENDOR) 186 ie += 4; 187 ie += 2; 188 htcap = (struct ieee80211_ht_cap *)ie; 189 sta->deflink.ht_cap.cap = htcap->cap_info; 190 sta->deflink.ht_cap.mcs = htcap->mcs; 191 192 rx_nss = 0; 193 for (i = 0; i < nitems(htcap->mcs.rx_mask); i++) { 194 if (htcap->mcs.rx_mask[i]) 195 rx_nss++; 196 } 197 if (ht_rx_nss != NULL) 198 *ht_rx_nss = rx_nss; 199 200 IMPROVE("sta->wme, sta->deflink.agg.max*"); 201} 202#endif 203 204#if defined(LKPI_80211_VHT) 205static void 206lkpi_sta_sync_vht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *vht_rx_nss) 207{ 208 209 if ((ni->ni_flags & IEEE80211_NODE_VHT) == 0) 210 return; 211 212 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 213#ifdef __notyet__ 214 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 215 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; /* XXX? */ 216 } else 217#endif 218 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 219 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; 220 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 221 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_80; 222 } 223 224 IMPROVE("VHT sync ni to sta"); 225 return; 226} 227#endif 228 229static void 230lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 231 const char *_f, int _l) 232{ 233 234#ifdef LINUXKPI_DEBUG_80211 235 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 236 return; 237 if (lsta == NULL) 238 return; 239 240 printf("%s:%d lsta %p ni %p sta %p\n", 241 _f, _l, lsta, ni, &lsta->sta); 242 if (ni != NULL) 243 ieee80211_dump_node(NULL, ni); 244 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 245 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 246 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 247#endif 248} 249 250static void 251lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 252{ 253 254 255 LKPI_80211_LVIF_LOCK(lvif); 256 KASSERT(lsta->lsta_entry.tqe_prev != NULL, 257 ("%s: lsta %p lsta_entry.tqe_prev %p ni %p\n", __func__, 258 lsta, lsta->lsta_entry.tqe_prev, lsta->ni)); 259 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 260 LKPI_80211_LVIF_UNLOCK(lvif); 261} 262 263static struct lkpi_sta * 264lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 265 struct ieee80211_hw *hw, struct ieee80211_node *ni) 266{ 267 struct lkpi_sta *lsta; 268 struct lkpi_vif *lvif; 269 struct ieee80211_vif *vif; 270 struct ieee80211_sta *sta; 271 int band, i, tid; 272 int ht_rx_nss; 273 int vht_rx_nss; 274 275 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 276 M_NOWAIT | M_ZERO); 277 if (lsta == NULL) 278 return (NULL); 279 280 lsta->added_to_drv = false; 281 lsta->state = IEEE80211_STA_NOTEXIST; 282 /* 283 * Link the ni to the lsta here without taking a reference. 284 * For one we would have to take the reference in node_init() 285 * as ieee80211_alloc_node() will initialise the refcount after us. 286 * For the other a ni and an lsta are 1:1 mapped and always together 287 * from [ic_]node_alloc() to [ic_]node_free() so we are essentally 288 * using the ni references for the lsta as well despite it being 289 * two separate allocations. 290 */ 291 lsta->ni = ni; 292 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 293 ni->ni_drv_data = lsta; 294 295 lvif = VAP_TO_LVIF(vap); 296 vif = LVIF_TO_VIF(lvif); 297 sta = LSTA_TO_STA(lsta); 298 299 IEEE80211_ADDR_COPY(sta->addr, mac); 300 301 /* TXQ */ 302 for (tid = 0; tid < nitems(sta->txq); tid++) { 303 struct lkpi_txq *ltxq; 304 305 /* We are not limiting ourselves to hw.queues here. */ 306 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 307 M_LKPI80211, M_NOWAIT | M_ZERO); 308 if (ltxq == NULL) 309 goto cleanup; 310 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 311 if (tid == IEEE80211_NUM_TIDS) { 312 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 313 free(ltxq, M_LKPI80211); 314 continue; 315 } 316 IMPROVE("AP/if we support non-STA here too"); 317 ltxq->txq.ac = IEEE80211_AC_VO; 318 } else { 319 ltxq->txq.ac = ieee80211e_up_to_ac[tid & 7]; 320 } 321 ltxq->seen_dequeue = false; 322 ltxq->stopped = false; 323 ltxq->txq.vif = vif; 324 ltxq->txq.tid = tid; 325 ltxq->txq.sta = sta; 326 TAILQ_ELEM_INIT(ltxq, txq_entry); 327 skb_queue_head_init(<xq->skbq); 328 LKPI_80211_LTXQ_LOCK_INIT(ltxq); 329 sta->txq[tid] = <xq->txq; 330 } 331 332 /* Deflink information. */ 333 for (band = 0; band < NUM_NL80211_BANDS; band++) { 334 struct ieee80211_supported_band *supband; 335 336 supband = hw->wiphy->bands[band]; 337 if (supband == NULL) 338 continue; 339 340 for (i = 0; i < supband->n_bitrates; i++) { 341 342 IMPROVE("Further supband->bitrates[i]* checks?"); 343 /* or should we get them from the ni? */ 344 sta->deflink.supp_rates[band] |= BIT(i); 345 } 346 } 347 348 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 349 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_20; 350 sta->deflink.rx_nss = 0; 351 352 ht_rx_nss = 0; 353#if defined(LKPI_80211_HT) 354 lkpi_sta_sync_ht_from_ni(sta, ni, &ht_rx_nss); 355#endif 356 vht_rx_nss = 0; 357#if defined(LKPI_80211_VHT) 358 lkpi_sta_sync_vht_from_ni(sta, ni, &vht_rx_nss); 359#endif 360 361 sta->deflink.rx_nss = MAX(ht_rx_nss, sta->deflink.rx_nss); 362 sta->deflink.rx_nss = MAX(vht_rx_nss, sta->deflink.rx_nss); 363 IMPROVE("he, ... smps_mode, .."); 364 365 /* Link configuration. */ 366 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 367 sta->link[0] = &sta->deflink; 368 for (i = 1; i < nitems(sta->link); i++) { 369 IMPROVE("more links; only link[0] = deflink currently."); 370 } 371 372 /* Deferred TX path. */ 373 LKPI_80211_LSTA_TXQ_LOCK_INIT(lsta); 374 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 375 mbufq_init(&lsta->txq, IFQ_MAXLEN); 376 lsta->txq_ready = true; 377 378 return (lsta); 379 380cleanup: 381 for (; tid >= 0; tid--) { 382 struct lkpi_txq *ltxq; 383 384 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 385 LKPI_80211_LTXQ_LOCK_DESTROY(ltxq); 386 free(sta->txq[tid], M_LKPI80211); 387 } 388 free(lsta, M_LKPI80211); 389 return (NULL); 390} 391 392static void 393lkpi_lsta_free(struct lkpi_sta *lsta, struct ieee80211_node *ni) 394{ 395 struct mbuf *m; 396 397 if (lsta->added_to_drv) 398 panic("%s: Trying to free an lsta still known to firmware: " 399 "lsta %p ni %p added_to_drv %d\n", 400 __func__, lsta, ni, lsta->added_to_drv); 401 402 /* XXX-BZ free resources, ... */ 403 IMPROVE(); 404 405 /* Drain sta->txq[] */ 406 407 LKPI_80211_LSTA_TXQ_LOCK(lsta); 408 lsta->txq_ready = false; 409 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 410 411 /* Drain taskq, won't be restarted until added_to_drv is set again. */ 412 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 413 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 414 415 /* Flush mbufq (make sure to release ni refs!). */ 416 m = mbufq_dequeue(&lsta->txq); 417 while (m != NULL) { 418 struct ieee80211_node *nim; 419 420 nim = (struct ieee80211_node *)m->m_pkthdr.rcvif; 421 if (nim != NULL) 422 ieee80211_free_node(nim); 423 m_freem(m); 424 m = mbufq_dequeue(&lsta->txq); 425 } 426 KASSERT(mbufq_empty(&lsta->txq), ("%s: lsta %p has txq len %d != 0\n", 427 __func__, lsta, mbufq_len(&lsta->txq))); 428 LKPI_80211_LSTA_TXQ_LOCK_DESTROY(lsta); 429 430 /* Remove lsta from vif; that is done by the state machine. Should assert it? */ 431 432 IMPROVE("Make sure everything is cleaned up."); 433 434 /* Free lsta. */ 435 lsta->ni = NULL; 436 ni->ni_drv_data = NULL; 437 free(lsta, M_LKPI80211); 438} 439 440 441static enum nl80211_band 442lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 443{ 444 445 if (IEEE80211_IS_CHAN_2GHZ(c)) 446 return (NL80211_BAND_2GHZ); 447 else if (IEEE80211_IS_CHAN_5GHZ(c)) 448 return (NL80211_BAND_5GHZ); 449#ifdef __notyet__ 450 else if () 451 return (NL80211_BAND_6GHZ); 452 else if () 453 return (NL80211_BAND_60GHZ); 454 else if (IEEE80211_IS_CHAN_GSM(c)) 455 return (NL80211_BAND_XXX); 456#endif 457 else 458 panic("%s: unsupported band. c %p flags %#x\n", 459 __func__, c, c->ic_flags); 460} 461 462static uint32_t 463lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 464{ 465 466 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 467 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 468 switch (band) { 469 case NL80211_BAND_2GHZ: 470 return (IEEE80211_CHAN_2GHZ); 471 break; 472 case NL80211_BAND_5GHZ: 473 return (IEEE80211_CHAN_5GHZ); 474 break; 475 case NL80211_BAND_60GHZ: 476 break; 477 case NL80211_BAND_6GHZ: 478 break; 479 default: 480 panic("%s: unsupported band %u\n", __func__, band); 481 break; 482 } 483 484 IMPROVE(); 485 return (0x00); 486} 487 488#if 0 489static enum ieee80211_ac_numbers 490lkpi_ac_net_to_l80211(int ac) 491{ 492 493 switch (ac) { 494 case WME_AC_VO: 495 return (IEEE80211_AC_VO); 496 case WME_AC_VI: 497 return (IEEE80211_AC_VI); 498 case WME_AC_BE: 499 return (IEEE80211_AC_BE); 500 case WME_AC_BK: 501 return (IEEE80211_AC_BK); 502 default: 503 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 504 return (IEEE80211_AC_BE); 505 } 506} 507#endif 508 509static enum nl80211_iftype 510lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 511{ 512 513 switch (opmode) { 514 case IEEE80211_M_IBSS: 515 return (NL80211_IFTYPE_ADHOC); 516 break; 517 case IEEE80211_M_STA: 518 return (NL80211_IFTYPE_STATION); 519 break; 520 case IEEE80211_M_WDS: 521 return (NL80211_IFTYPE_WDS); 522 break; 523 case IEEE80211_M_HOSTAP: 524 return (NL80211_IFTYPE_AP); 525 break; 526 case IEEE80211_M_MONITOR: 527 return (NL80211_IFTYPE_MONITOR); 528 break; 529 case IEEE80211_M_MBSS: 530 return (NL80211_IFTYPE_MESH_POINT); 531 break; 532 case IEEE80211_M_AHDEMO: 533 /* FALLTHROUGH */ 534 default: 535 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 536 /* FALLTHROUGH */ 537 } 538 return (NL80211_IFTYPE_UNSPECIFIED); 539} 540 541#ifdef LKPI_80211_HW_CRYPTO 542static uint32_t 543lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 544{ 545 546 switch (wlan_cipher_suite) { 547 case WLAN_CIPHER_SUITE_WEP40: 548 return (IEEE80211_CRYPTO_WEP); 549 case WLAN_CIPHER_SUITE_TKIP: 550 return (IEEE80211_CRYPTO_TKIP); 551 case WLAN_CIPHER_SUITE_CCMP: 552 return (IEEE80211_CRYPTO_AES_CCM); 553 case WLAN_CIPHER_SUITE_WEP104: 554 return (IEEE80211_CRYPTO_WEP); 555 case WLAN_CIPHER_SUITE_AES_CMAC: 556 case WLAN_CIPHER_SUITE_GCMP: 557 case WLAN_CIPHER_SUITE_GCMP_256: 558 case WLAN_CIPHER_SUITE_CCMP_256: 559 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 560 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 561 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 562 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 563 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 564 break; 565 default: 566 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 567 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 568 } 569 570 return (0); 571} 572 573static uint32_t 574lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 575{ 576 577 switch (cipher) { 578 case IEEE80211_CIPHER_TKIP: 579 return (WLAN_CIPHER_SUITE_TKIP); 580 case IEEE80211_CIPHER_AES_CCM: 581 return (WLAN_CIPHER_SUITE_CCMP); 582 case IEEE80211_CIPHER_WEP: 583 if (keylen < 8) 584 return (WLAN_CIPHER_SUITE_WEP40); 585 else 586 return (WLAN_CIPHER_SUITE_WEP104); 587 break; 588 case IEEE80211_CIPHER_AES_OCB: 589 case IEEE80211_CIPHER_TKIPMIC: 590 case IEEE80211_CIPHER_CKIP: 591 case IEEE80211_CIPHER_NONE: 592 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 593 break; 594 default: 595 printf("%s: unknown cipher %#010x\n", __func__, cipher); 596 }; 597 return (0); 598} 599#endif 600 601#ifdef __notyet__ 602static enum ieee80211_sta_state 603lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 604{ 605 606 /* 607 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 608 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 609 */ 610 switch (state) { 611 case IEEE80211_S_INIT: 612 return (IEEE80211_STA_NOTEXIST); 613 case IEEE80211_S_SCAN: 614 return (IEEE80211_STA_NONE); 615 case IEEE80211_S_AUTH: 616 return (IEEE80211_STA_AUTH); 617 case IEEE80211_S_ASSOC: 618 return (IEEE80211_STA_ASSOC); 619 case IEEE80211_S_RUN: 620 return (IEEE80211_STA_AUTHORIZED); 621 case IEEE80211_S_CAC: 622 case IEEE80211_S_CSA: 623 case IEEE80211_S_SLEEP: 624 default: 625 UNIMPLEMENTED; 626 }; 627 628 return (IEEE80211_STA_NOTEXIST); 629} 630#endif 631 632static struct linuxkpi_ieee80211_channel * 633lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 634 struct ieee80211_channel *c) 635{ 636 struct ieee80211_hw *hw; 637 struct linuxkpi_ieee80211_channel *channels; 638 enum nl80211_band band; 639 int i, nchans; 640 641 hw = LHW_TO_HW(lhw); 642 band = lkpi_net80211_chan_to_nl80211_band(c); 643 if (hw->wiphy->bands[band] == NULL) 644 return (NULL); 645 646 nchans = hw->wiphy->bands[band]->n_channels; 647 if (nchans <= 0) 648 return (NULL); 649 650 channels = hw->wiphy->bands[band]->channels; 651 for (i = 0; i < nchans; i++) { 652 if (channels[i].hw_value == c->ic_ieee) 653 return (&channels[i]); 654 } 655 656 return (NULL); 657} 658 659#if 0 660static struct linuxkpi_ieee80211_channel * 661lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 662{ 663 struct linuxkpi_ieee80211_channel *chan; 664 struct ieee80211_channel *c; 665 struct lkpi_hw *lhw; 666 667 chan = NULL; 668 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 669 c = ni->ni_chan; 670 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 671 c = ic->ic_bsschan; 672 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 673 c = ic->ic_curchan; 674 else 675 c = NULL; 676 677 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 678 lhw = ic->ic_softc; 679 chan = lkpi_find_lkpi80211_chan(lhw, c); 680 } 681 682 return (chan); 683} 684#endif 685 686struct linuxkpi_ieee80211_channel * 687linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 688{ 689 enum nl80211_band band; 690 691 for (band = 0; band < NUM_NL80211_BANDS; band++) { 692 struct ieee80211_supported_band *supband; 693 struct linuxkpi_ieee80211_channel *channels; 694 int i; 695 696 supband = wiphy->bands[band]; 697 if (supband == NULL || supband->n_channels == 0) 698 continue; 699 700 channels = supband->channels; 701 for (i = 0; i < supband->n_channels; i++) { 702 if (channels[i].center_freq == freq) 703 return (&channels[i]); 704 } 705 } 706 707 return (NULL); 708} 709 710#ifdef LKPI_80211_HW_CRYPTO 711static int 712_lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 713 enum set_key_cmd cmd) 714{ 715 struct ieee80211com *ic; 716 struct lkpi_hw *lhw; 717 struct ieee80211_hw *hw; 718 struct lkpi_vif *lvif; 719 struct ieee80211_vif *vif; 720 struct ieee80211_sta *sta; 721 struct ieee80211_node *ni; 722 struct ieee80211_key_conf *kc; 723 int error; 724 725 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 726 727 ic = vap->iv_ic; 728 lhw = ic->ic_softc; 729 hw = LHW_TO_HW(lhw); 730 lvif = VAP_TO_LVIF(vap); 731 vif = LVIF_TO_VIF(lvif); 732 733 memset(&kc, 0, sizeof(kc)); 734 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 735 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 736 k->wk_cipher->ic_cipher, k->wk_keylen); 737 kc->keyidx = k->wk_keyix; 738#if 0 739 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 740#endif 741 atomic64_set(&kc->tx_pn, k->wk_keytsc); 742 kc->keylen = k->wk_keylen; 743 memcpy(kc->key, k->wk_key, k->wk_keylen); 744 745 switch (kc->cipher) { 746 case WLAN_CIPHER_SUITE_CCMP: 747 kc->iv_len = k->wk_cipher->ic_header; 748 kc->icv_len = k->wk_cipher->ic_trailer; 749 break; 750 case WLAN_CIPHER_SUITE_TKIP: 751 default: 752 IMPROVE(); 753 return (0); 754 }; 755 756 ni = vap->iv_bss; 757 sta = ieee80211_find_sta(vif, ni->ni_bssid); 758 if (sta != NULL) { 759 struct lkpi_sta *lsta; 760 761 lsta = STA_TO_LSTA(sta); 762 lsta->kc = kc; 763 } 764 765 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 766 if (error != 0) { 767 /* XXX-BZ leaking kc currently */ 768 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 769 return (0); 770 } else { 771 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 772 "flags %#10x\n", __func__, 773 kc->keyidx, kc->hw_key_idx, kc->flags); 774 return (1); 775 } 776} 777 778static int 779lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 780{ 781 782 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 783 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 784} 785static int 786lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 787{ 788 789 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 790} 791#endif 792 793static u_int 794lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 795{ 796 struct netdev_hw_addr_list *mc_list; 797 struct netdev_hw_addr *addr; 798 799 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 800 __func__, arg, sdl, cnt)); 801 802 mc_list = arg; 803 /* If it is on the list already skip it. */ 804 netdev_hw_addr_list_for_each(addr, mc_list) { 805 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 806 return (0); 807 } 808 809 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 810 if (addr == NULL) 811 return (0); 812 813 INIT_LIST_HEAD(&addr->addr_list); 814 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 815 /* XXX this should be a netdev function? */ 816 list_add(&addr->addr_list, &mc_list->addr_list); 817 mc_list->count++; 818 819#ifdef LINUXKPI_DEBUG_80211 820 if (linuxkpi_debug_80211 & D80211_TRACE) 821 printf("%s:%d: mc_list count %d: added %6D\n", 822 __func__, __LINE__, mc_list->count, addr->addr, ":"); 823#endif 824 825 return (1); 826} 827 828static void 829lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 830{ 831 struct lkpi_hw *lhw; 832 struct ieee80211_hw *hw; 833 struct netdev_hw_addr_list mc_list; 834 struct list_head *le, *next; 835 struct netdev_hw_addr *addr; 836 struct ieee80211vap *vap; 837 u64 mc; 838 unsigned int changed_flags, total_flags; 839 840 lhw = ic->ic_softc; 841 842 if (lhw->ops->prepare_multicast == NULL || 843 lhw->ops->configure_filter == NULL) 844 return; 845 846 if (!lhw->update_mc && !force) 847 return; 848 849 changed_flags = total_flags = 0; 850 mc_list.count = 0; 851 INIT_LIST_HEAD(&mc_list.addr_list); 852 if (ic->ic_allmulti == 0) { 853 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 854 if_foreach_llmaddr(vap->iv_ifp, 855 lkpi_ic_update_mcast_copy, &mc_list); 856 } else { 857 changed_flags |= FIF_ALLMULTI; 858 } 859 860 hw = LHW_TO_HW(lhw); 861 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 862 /* 863 * XXX-BZ make sure to get this sorted what is a change, 864 * what gets all set; what was already set? 865 */ 866 total_flags = changed_flags; 867 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 868 869#ifdef LINUXKPI_DEBUG_80211 870 if (linuxkpi_debug_80211 & D80211_TRACE) 871 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 872 __func__, changed_flags, mc_list.count, total_flags); 873#endif 874 875 if (mc_list.count != 0) { 876 list_for_each_safe(le, next, &mc_list.addr_list) { 877 addr = list_entry(le, struct netdev_hw_addr, addr_list); 878 free(addr, M_LKPI80211); 879 mc_list.count--; 880 } 881 } 882 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 883 __func__, &mc_list, mc_list.count)); 884} 885 886static enum ieee80211_bss_changed 887lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 888 struct ieee80211vap *vap, const char *_f, int _l) 889{ 890 enum ieee80211_bss_changed bss_changed; 891 892 bss_changed = 0; 893 894#ifdef LINUXKPI_DEBUG_80211 895 if (linuxkpi_debug_80211 & D80211_TRACE) 896 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 897 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 898 "sync_device_ts %u bss_changed %#08x\n", 899 __func__, __LINE__, _f, _l, 900 vif->cfg.assoc, vif->cfg.aid, 901 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 902 vif->bss_conf.sync_dtim_count, 903 (uintmax_t)vif->bss_conf.sync_tsf, 904 vif->bss_conf.sync_device_ts, 905 bss_changed); 906#endif 907 908 if (vif->bss_conf.beacon_int != ni->ni_intval) { 909 vif->bss_conf.beacon_int = ni->ni_intval; 910 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 911 if (vif->bss_conf.beacon_int < 16) 912 vif->bss_conf.beacon_int = 16; 913 bss_changed |= BSS_CHANGED_BEACON_INT; 914 } 915 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 916 vap->iv_dtim_period > 0) { 917 vif->bss_conf.dtim_period = vap->iv_dtim_period; 918 bss_changed |= BSS_CHANGED_BEACON_INFO; 919 } 920 921 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 922 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 923 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 924 925#ifdef LINUXKPI_DEBUG_80211 926 if (linuxkpi_debug_80211 & D80211_TRACE) 927 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 928 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 929 "sync_device_ts %u bss_changed %#08x\n", 930 __func__, __LINE__, _f, _l, 931 vif->cfg.assoc, vif->cfg.aid, 932 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 933 vif->bss_conf.sync_dtim_count, 934 (uintmax_t)vif->bss_conf.sync_tsf, 935 vif->bss_conf.sync_device_ts, 936 bss_changed); 937#endif 938 939 return (bss_changed); 940} 941 942static void 943lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 944{ 945 struct ieee80211_hw *hw; 946 int error; 947 bool cancel; 948 949 LKPI_80211_LHW_SCAN_LOCK(lhw); 950 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 951 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 952 if (!cancel) 953 return; 954 955 hw = LHW_TO_HW(lhw); 956 957 IEEE80211_UNLOCK(lhw->ic); 958 LKPI_80211_LHW_LOCK(lhw); 959 /* Need to cancel the scan. */ 960 lkpi_80211_mo_cancel_hw_scan(hw, vif); 961 LKPI_80211_LHW_UNLOCK(lhw); 962 963 /* Need to make sure we see ieee80211_scan_completed. */ 964 LKPI_80211_LHW_SCAN_LOCK(lhw); 965 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 966 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 967 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 968 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 969 970 IEEE80211_LOCK(lhw->ic); 971 972 if (cancel) 973 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 974 __func__, error, lhw, vif); 975} 976 977static void 978lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 979{ 980 struct lkpi_hw *lhw; 981 int error; 982 bool old; 983 984 old = hw->conf.flags & IEEE80211_CONF_IDLE; 985 if (old == new) 986 return; 987 988 hw->conf.flags ^= IEEE80211_CONF_IDLE; 989 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 990 if (error != 0 && error != EOPNOTSUPP) { 991 lhw = HW_TO_LHW(hw); 992 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 993 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 994 } 995} 996 997static enum ieee80211_bss_changed 998lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 999 struct lkpi_hw *lhw) 1000{ 1001 enum ieee80211_bss_changed changed; 1002 1003 changed = 0; 1004 sta->aid = 0; 1005 if (vif->cfg.assoc) { 1006 1007 lhw->update_mc = true; 1008 lkpi_update_mcast_filter(lhw->ic, true); 1009 1010 vif->cfg.assoc = false; 1011 vif->cfg.aid = 0; 1012 changed |= BSS_CHANGED_ASSOC; 1013 IMPROVE(); 1014 1015 /* 1016 * Executing the bss_info_changed(BSS_CHANGED_ASSOC) with 1017 * assoc = false right away here will remove the sta from 1018 * firmware for iwlwifi. 1019 * We no longer do this but only return the BSS_CHNAGED value. 1020 * The caller is responsible for removing the sta gong to 1021 * IEEE80211_STA_NOTEXIST and then executing the 1022 * bss_info_changed() update. 1023 * See lkpi_sta_run_to_init() for more detailed comment. 1024 */ 1025 } 1026 1027 return (changed); 1028} 1029 1030static void 1031lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 1032 bool dequeue_seen, bool no_emptyq) 1033{ 1034 struct lkpi_txq *ltxq; 1035 int tid; 1036 bool ltxq_empty; 1037 1038 /* Wake up all queues to know they are allocated in the driver. */ 1039 for (tid = 0; tid < nitems(sta->txq); tid++) { 1040 1041 if (tid == IEEE80211_NUM_TIDS) { 1042 IMPROVE("station specific?"); 1043 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 1044 continue; 1045 } else if (tid >= hw->queues) 1046 continue; 1047 1048 if (sta->txq[tid] == NULL) 1049 continue; 1050 1051 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1052 if (dequeue_seen && !ltxq->seen_dequeue) 1053 continue; 1054 1055 LKPI_80211_LTXQ_LOCK(ltxq); 1056 ltxq_empty = skb_queue_empty(<xq->skbq); 1057 LKPI_80211_LTXQ_UNLOCK(ltxq); 1058 if (no_emptyq && ltxq_empty) 1059 continue; 1060 1061 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 1062 } 1063} 1064 1065/* 1066 * On the way down from RUN -> ASSOC -> AUTH we may send a DISASSOC or DEAUTH 1067 * packet. The problem is that the state machine functions tend to hold the 1068 * LHW lock which will prevent lkpi_80211_txq_tx_one() from sending the packet. 1069 * We call this after dropping the ic lock and before acquiring the LHW lock. 1070 * we make sure no further packets are queued and if they are queued the task 1071 * will finish or be cancelled. At the end if a packet is left we manually 1072 * send it. scan_to_auth() would re-enable sending if the lsta would be 1073 * re-used. 1074 */ 1075static void 1076lkpi_80211_flush_tx(struct lkpi_hw *lhw, struct lkpi_sta *lsta) 1077{ 1078 struct mbufq mq; 1079 struct mbuf *m; 1080 int len; 1081 1082 LKPI_80211_LHW_UNLOCK_ASSERT(lhw); 1083 1084 /* Do not accept any new packets until scan_to_auth or lsta_free(). */ 1085 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1086 lsta->txq_ready = false; 1087 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1088 1089 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 1090 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 1091 1092 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1093 len = mbufq_len(&lsta->txq); 1094 if (len <= 0) { 1095 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1096 return; 1097 } 1098 1099 mbufq_init(&mq, IFQ_MAXLEN); 1100 mbufq_concat(&mq, &lsta->txq); 1101 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1102 1103 m = mbufq_dequeue(&mq); 1104 while (m != NULL) { 1105 lkpi_80211_txq_tx_one(lsta, m); 1106 m = mbufq_dequeue(&mq); 1107 } 1108} 1109 1110/* -------------------------------------------------------------------------- */ 1111 1112static int 1113lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1114{ 1115 1116 return (0); 1117} 1118 1119/* lkpi_iv_newstate() handles the stop scan case generally. */ 1120#define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 1121 1122static int 1123lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1124{ 1125 struct linuxkpi_ieee80211_channel *chan; 1126 struct lkpi_chanctx *lchanctx; 1127 struct ieee80211_chanctx_conf *chanctx_conf; 1128 struct lkpi_hw *lhw; 1129 struct ieee80211_hw *hw; 1130 struct lkpi_vif *lvif; 1131 struct ieee80211_vif *vif; 1132 struct ieee80211_node *ni; 1133 struct lkpi_sta *lsta; 1134 enum ieee80211_bss_changed bss_changed; 1135 struct ieee80211_prep_tx_info prep_tx_info; 1136 uint32_t changed; 1137 int error; 1138 1139 /* 1140 * In here we use vap->iv_bss until lvif->lvif_bss is set. 1141 * For all later (STATE >= AUTH) functions we need to use the lvif 1142 * cache which will be tracked even through (*iv_update_bss)(). 1143 */ 1144 1145 if (vap->iv_bss == NULL) { 1146 ic_printf(vap->iv_ic, "%s: no iv_bss for vap %p\n", __func__, vap); 1147 return (EINVAL); 1148 } 1149 /* 1150 * Keep the ni alive locally. In theory (and practice) iv_bss can change 1151 * once we unlock here. This is due to net80211 allowing state changes 1152 * and new join1() despite having an active node as well as due to 1153 * the fact that the iv_bss can be swapped under the hood in (*iv_update_bss). 1154 */ 1155 ni = ieee80211_ref_node(vap->iv_bss); 1156 if (ni->ni_chan == NULL || ni->ni_chan == IEEE80211_CHAN_ANYC) { 1157 ic_printf(vap->iv_ic, "%s: no channel set for iv_bss ni %p " 1158 "on vap %p\n", __func__, ni, vap); 1159 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1160 return (EINVAL); 1161 } 1162 1163 lhw = vap->iv_ic->ic_softc; 1164 chan = lkpi_find_lkpi80211_chan(lhw, ni->ni_chan); 1165 if (chan == NULL) { 1166 ic_printf(vap->iv_ic, "%s: failed to get LKPI channel from " 1167 "iv_bss ni %p on vap %p\n", __func__, ni, vap); 1168 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1169 return (ESRCH); 1170 } 1171 1172 hw = LHW_TO_HW(lhw); 1173 lvif = VAP_TO_LVIF(vap); 1174 vif = LVIF_TO_VIF(lvif); 1175 1176 LKPI_80211_LVIF_LOCK(lvif); 1177 /* XXX-BZ KASSERT later? */ 1178 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) { 1179 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1180 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1181 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1182 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1183 lvif->lvif_bss_synched); 1184 return (EBUSY); 1185 } 1186 LKPI_80211_LVIF_UNLOCK(lvif); 1187 1188 IEEE80211_UNLOCK(vap->iv_ic); 1189 LKPI_80211_LHW_LOCK(lhw); 1190 1191 /* Add chanctx (or if exists, change it). */ 1192 if (vif->chanctx_conf != NULL) { 1193 chanctx_conf = vif->chanctx_conf; 1194 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1195 IMPROVE("diff changes for changed, working on live copy, rcu"); 1196 } else { 1197 /* Keep separate alloc as in Linux this is rcu managed? */ 1198 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 1199 M_LKPI80211, M_WAITOK | M_ZERO); 1200 chanctx_conf = &lchanctx->chanctx_conf; 1201 } 1202 1203 chanctx_conf->rx_chains_dynamic = 1; 1204 chanctx_conf->rx_chains_static = 1; 1205 chanctx_conf->radar_enabled = 1206 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 1207 chanctx_conf->def.chan = chan; 1208 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 1209 chanctx_conf->def.center_freq1 = chan->center_freq; 1210 chanctx_conf->def.center_freq2 = 0; 1211 IMPROVE("Check vht_cap from band not just chan?"); 1212 KASSERT(ni->ni_chan != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC, 1213 ("%s:%d: ni %p ni_chan %p\n", __func__, __LINE__, ni, ni->ni_chan)); 1214#ifdef LKPI_80211_HT 1215 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 1216 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 1217 chanctx_conf->def.width = NL80211_CHAN_WIDTH_40; 1218 } else 1219 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20; 1220 } 1221#endif 1222#ifdef LKPI_80211_VHT 1223 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 1224#ifdef __notyet__ 1225 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 1226 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80P80; 1227 chanctx_conf->def.center_freq2 = 0; /* XXX */ 1228 } else 1229#endif 1230 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 1231 chanctx_conf->def.width = NL80211_CHAN_WIDTH_160; 1232 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 1233 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80; 1234 } 1235#endif 1236 /* Responder ... */ 1237 chanctx_conf->min_def.chan = chan; 1238 chanctx_conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 1239 chanctx_conf->min_def.center_freq1 = chan->center_freq; 1240 chanctx_conf->min_def.center_freq2 = 0; 1241 IMPROVE("currently 20_NOHT min_def only"); 1242 1243 /* Set bss info (bss_info_changed). */ 1244 bss_changed = 0; 1245 vif->bss_conf.bssid = ni->ni_bssid; 1246 bss_changed |= BSS_CHANGED_BSSID; 1247 vif->bss_conf.txpower = ni->ni_txpower; 1248 bss_changed |= BSS_CHANGED_TXPOWER; 1249 vif->cfg.idle = false; 1250 bss_changed |= BSS_CHANGED_IDLE; 1251 1252 /* vif->bss_conf.basic_rates ? Where exactly? */ 1253 1254 /* Should almost assert it is this. */ 1255 vif->cfg.assoc = false; 1256 vif->cfg.aid = 0; 1257 1258 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1259 1260 error = 0; 1261 if (vif->chanctx_conf != NULL) { 1262 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 1263 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 1264 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 1265 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 1266 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 1267 } else { 1268 error = lkpi_80211_mo_add_chanctx(hw, chanctx_conf); 1269 if (error == 0 || error == EOPNOTSUPP) { 1270 vif->bss_conf.chandef.chan = chanctx_conf->def.chan; 1271 vif->bss_conf.chandef.width = chanctx_conf->def.width; 1272 vif->bss_conf.chandef.center_freq1 = 1273 chanctx_conf->def.center_freq1; 1274#ifdef LKPI_80211_HT 1275 if (vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_40) { 1276 /* Note: it is 10 not 20. */ 1277 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) 1278 vif->bss_conf.chandef.center_freq1 += 10; 1279 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 1280 vif->bss_conf.chandef.center_freq1 -= 10; 1281 } 1282#endif 1283 vif->bss_conf.chandef.center_freq2 = 1284 chanctx_conf->def.center_freq2; 1285 } else { 1286 ic_printf(vap->iv_ic, "%s:%d: mo_add_chanctx " 1287 "failed: %d\n", __func__, __LINE__, error); 1288 goto out; 1289 } 1290 1291 vif->bss_conf.chanctx_conf = chanctx_conf; 1292 1293 /* Assign vif chanctx. */ 1294 if (error == 0) 1295 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1296 &vif->bss_conf, chanctx_conf); 1297 if (error == EOPNOTSUPP) 1298 error = 0; 1299 if (error != 0) { 1300 ic_printf(vap->iv_ic, "%s:%d: mo_assign_vif_chanctx " 1301 "failed: %d\n", __func__, __LINE__, error); 1302 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1303 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1304 free(lchanctx, M_LKPI80211); 1305 goto out; 1306 } 1307 } 1308 IMPROVE("update radiotap chan fields too"); 1309 1310 /* RATES */ 1311 IMPROVE("bss info: not all needs to come now and rates are missing"); 1312 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1313 1314 /* 1315 * Given ni and lsta are 1:1 from alloc to free we can assert that 1316 * ni always has lsta data attach despite net80211 node swapping 1317 * under the hoods. 1318 */ 1319 KASSERT(ni->ni_drv_data != NULL, ("%s: ni %p ni_drv_data %p\n", 1320 __func__, ni, ni->ni_drv_data)); 1321 lsta = ni->ni_drv_data; 1322 1323 /* 1324 * Make sure in case the sta did not change and we re-add it, 1325 * that we can tx again. 1326 */ 1327 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1328 lsta->txq_ready = true; 1329 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1330 1331 LKPI_80211_LVIF_LOCK(lvif); 1332 /* Insert the [l]sta into the list of known stations. */ 1333 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1334 LKPI_80211_LVIF_UNLOCK(lvif); 1335 1336 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1337 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1338 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1339 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1340 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1341 if (error != 0) { 1342 IMPROVE("do we need to undo the chan ctx?"); 1343 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1344 "failed: %d\n", __func__, __LINE__, error); 1345 goto out; 1346 } 1347#if 0 1348 lsta->added_to_drv = true; /* mo manages. */ 1349#endif 1350 1351 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1352 1353#if 0 1354 /* 1355 * Wakeup all queues now that sta is there so we have as much time to 1356 * possibly prepare the queue in the driver to be ready for the 1st 1357 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1358 * is no guarantee or way to check. 1359 * XXX-BZ and by now we know that this does not work on all drivers 1360 * for all queues. 1361 */ 1362 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1363#endif 1364 1365 /* Start mgd_prepare_tx. */ 1366 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1367 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1368 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1369 lsta->in_mgd = true; 1370 1371 /* 1372 * What is going to happen next: 1373 * - <twiddle> .. we should end up in "auth_to_assoc" 1374 * - event_callback 1375 * - update sta_state (NONE to AUTH) 1376 * - mgd_complete_tx 1377 * (ideally we'd do that on a callback for something else ...) 1378 */ 1379 1380 LKPI_80211_LHW_UNLOCK(lhw); 1381 IEEE80211_LOCK(vap->iv_ic); 1382 1383 LKPI_80211_LVIF_LOCK(lvif); 1384 /* Re-check given (*iv_update_bss) could have happened while we were unlocked. */ 1385 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL || 1386 lsta->ni != vap->iv_bss) 1387 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1388 "lvif_bss->ni %p synched %d, ni %p lsta %p\n", __func__, __LINE__, 1389 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1390 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1391 lvif->lvif_bss_synched, ni, lsta); 1392 1393 /* 1394 * Reference the "ni" for caching the lsta/ni in lvif->lvif_bss. 1395 * Given we cache lsta we use lsta->ni instead of ni here (even though 1396 * lsta->ni == ni) to be distinct from the rest of the code where we do 1397 * assume that ni == vap->iv_bss which it may or may not be. 1398 * So do NOT use iv_bss here anymore as that may have diverged from our 1399 * function local ni already while ic was unlocked and would lead to 1400 * inconsistencies. Go and see if we lost a race and do not update 1401 * lvif_bss_synched in that case. 1402 */ 1403 ieee80211_ref_node(lsta->ni); 1404 lvif->lvif_bss = lsta; 1405 if (lsta->ni == vap->iv_bss) { 1406 lvif->lvif_bss_synched = true; 1407 } else { 1408 /* Set to un-synched no matter what. */ 1409 lvif->lvif_bss_synched = false; 1410 /* 1411 * We do not error as someone has to take us down. 1412 * If we are followed by a 2nd, new net80211::join1() going to 1413 * AUTH lkpi_sta_a_to_a() will error, lkpi_sta_auth_to_{scan,init}() 1414 * will take the lvif->lvif_bss node down eventually. 1415 * What happens with the vap->iv_bss node will entirely be up 1416 * to net80211 as we never used the node beyond alloc()/free() 1417 * and we do not hold an extra reference for that anymore given 1418 * ni : lsta == 1:1. 1419 */ 1420 } 1421 LKPI_80211_LVIF_UNLOCK(lvif); 1422 goto out_relocked; 1423 1424out: 1425 LKPI_80211_LHW_UNLOCK(lhw); 1426 IEEE80211_LOCK(vap->iv_ic); 1427out_relocked: 1428 /* 1429 * Release the reference that kept the ni stable locally 1430 * during the work of this function. 1431 */ 1432 if (ni != NULL) 1433 ieee80211_free_node(ni); 1434 return (error); 1435} 1436 1437static int 1438lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1439{ 1440 struct lkpi_hw *lhw; 1441 struct ieee80211_hw *hw; 1442 struct lkpi_vif *lvif; 1443 struct ieee80211_vif *vif; 1444 struct ieee80211_node *ni; 1445 struct lkpi_sta *lsta; 1446 struct ieee80211_sta *sta; 1447 struct ieee80211_prep_tx_info prep_tx_info; 1448 int error; 1449 1450 lhw = vap->iv_ic->ic_softc; 1451 hw = LHW_TO_HW(lhw); 1452 lvif = VAP_TO_LVIF(vap); 1453 vif = LVIF_TO_VIF(lvif); 1454 1455 LKPI_80211_LVIF_LOCK(lvif); 1456#ifdef LINUXKPI_DEBUG_80211 1457 /* XXX-BZ KASSERT later; state going down so no action. */ 1458 if (lvif->lvif_bss == NULL) 1459 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1460 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1461 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1462 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1463 lvif->lvif_bss_synched); 1464#endif 1465 1466 lsta = lvif->lvif_bss; 1467 LKPI_80211_LVIF_UNLOCK(lvif); 1468 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1469 "lvif %p vap %p\n", __func__, 1470 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1471 ni = lsta->ni; /* Reference held for lvif_bss. */ 1472 sta = LSTA_TO_STA(lsta); 1473 1474 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1475 1476 IEEE80211_UNLOCK(vap->iv_ic); 1477 LKPI_80211_LHW_LOCK(lhw); 1478 1479 /* flush, drop. */ 1480 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1481 1482 /* Wake tx queues to get packet(s) out. */ 1483 lkpi_wake_tx_queues(hw, sta, false, true); 1484 1485 /* flush, no drop */ 1486 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1487 1488 /* End mgd_complete_tx. */ 1489 if (lsta->in_mgd) { 1490 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1491 prep_tx_info.success = false; 1492 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1493 lsta->in_mgd = false; 1494 } 1495 1496 /* sync_rx_queues */ 1497 lkpi_80211_mo_sync_rx_queues(hw); 1498 1499 /* sta_pre_rcu_remove */ 1500 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1501 1502 /* Take the station down. */ 1503 1504 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1505 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1506 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1507 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1508 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1509 if (error != 0) { 1510 IMPROVE("do we need to undo the chan ctx?"); 1511 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1512 "failed: %d\n", __func__, __LINE__, error); 1513 goto out; 1514 } 1515#if 0 1516 lsta->added_to_drv = false; /* mo manages. */ 1517#endif 1518 1519 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1520 1521 LKPI_80211_LVIF_LOCK(lvif); 1522 /* Remove ni reference for this cache of lsta. */ 1523 lvif->lvif_bss = NULL; 1524 lvif->lvif_bss_synched = false; 1525 LKPI_80211_LVIF_UNLOCK(lvif); 1526 lkpi_lsta_remove(lsta, lvif); 1527 /* 1528 * The very last release the reference on the ni for the ni/lsta on 1529 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1530 * and potentially freed. 1531 */ 1532 ieee80211_free_node(ni); 1533 1534 /* conf_tx */ 1535 1536 /* Take the chan ctx down. */ 1537 if (vif->chanctx_conf != NULL) { 1538 struct lkpi_chanctx *lchanctx; 1539 struct ieee80211_chanctx_conf *chanctx_conf; 1540 1541 chanctx_conf = vif->chanctx_conf; 1542 /* Remove vif context. */ 1543 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1544 /* NB: vif->chanctx_conf is NULL now. */ 1545 1546 lkpi_hw_conf_idle(hw, true); 1547 1548 /* Remove chan ctx. */ 1549 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1550 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1551 free(lchanctx, M_LKPI80211); 1552 } 1553 1554out: 1555 LKPI_80211_LHW_UNLOCK(lhw); 1556 IEEE80211_LOCK(vap->iv_ic); 1557 return (error); 1558} 1559 1560static int 1561lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1562{ 1563 int error; 1564 1565 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1566 if (error == 0) 1567 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1568 return (error); 1569} 1570 1571static int 1572lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1573{ 1574 struct lkpi_hw *lhw; 1575 struct ieee80211_hw *hw; 1576 struct lkpi_vif *lvif; 1577 struct ieee80211_vif *vif; 1578 struct lkpi_sta *lsta; 1579 struct ieee80211_prep_tx_info prep_tx_info; 1580 int error; 1581 1582 lhw = vap->iv_ic->ic_softc; 1583 hw = LHW_TO_HW(lhw); 1584 lvif = VAP_TO_LVIF(vap); 1585 vif = LVIF_TO_VIF(lvif); 1586 1587 IEEE80211_UNLOCK(vap->iv_ic); 1588 LKPI_80211_LHW_LOCK(lhw); 1589 1590 LKPI_80211_LVIF_LOCK(lvif); 1591 /* XXX-BZ KASSERT later? */ 1592 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1593#ifdef LINUXKPI_DEBUG_80211 1594 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1595 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1596 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1597 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1598 lvif->lvif_bss_synched); 1599#endif 1600 error = ENOTRECOVERABLE; 1601 LKPI_80211_LVIF_UNLOCK(lvif); 1602 goto out; 1603 } 1604 lsta = lvif->lvif_bss; 1605 LKPI_80211_LVIF_UNLOCK(lvif); 1606 1607 KASSERT(lsta != NULL, ("%s: lsta %p\n", __func__, lsta)); 1608 1609 /* Finish auth. */ 1610 IMPROVE("event callback"); 1611 1612 /* Update sta_state (NONE to AUTH). */ 1613 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1614 "NONE: %#x\n", __func__, lsta, lsta->state)); 1615 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1616 if (error != 0) { 1617 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1618 "failed: %d\n", __func__, __LINE__, error); 1619 goto out; 1620 } 1621 1622 /* End mgd_complete_tx. */ 1623 if (lsta->in_mgd) { 1624 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1625 prep_tx_info.success = true; 1626 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1627 lsta->in_mgd = false; 1628 } 1629 1630 /* Now start assoc. */ 1631 1632 /* Start mgd_prepare_tx. */ 1633 if (!lsta->in_mgd) { 1634 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1635 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1636 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1637 lsta->in_mgd = true; 1638 } 1639 1640 /* Wake tx queue to get packet out. */ 1641 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, true); 1642 1643 /* 1644 * <twiddle> .. we end up in "assoc_to_run" 1645 * - update sta_state (AUTH to ASSOC) 1646 * - conf_tx [all] 1647 * - bss_info_changed (assoc, aid, ssid, ..) 1648 * - change_chanctx (if needed) 1649 * - event_callback 1650 * - mgd_complete_tx 1651 */ 1652 1653out: 1654 LKPI_80211_LHW_UNLOCK(lhw); 1655 IEEE80211_LOCK(vap->iv_ic); 1656 return (error); 1657} 1658 1659/* auth_to_auth, assoc_to_assoc. */ 1660static int 1661lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1662{ 1663 struct lkpi_hw *lhw; 1664 struct ieee80211_hw *hw; 1665 struct lkpi_vif *lvif; 1666 struct ieee80211_vif *vif; 1667 struct lkpi_sta *lsta; 1668 struct ieee80211_prep_tx_info prep_tx_info; 1669 int error; 1670 1671 lhw = vap->iv_ic->ic_softc; 1672 hw = LHW_TO_HW(lhw); 1673 lvif = VAP_TO_LVIF(vap); 1674 vif = LVIF_TO_VIF(lvif); 1675 1676 IEEE80211_UNLOCK(vap->iv_ic); 1677 LKPI_80211_LHW_LOCK(lhw); 1678 1679 LKPI_80211_LVIF_LOCK(lvif); 1680 /* XXX-BZ KASSERT later? */ 1681 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1682#ifdef LINUXKPI_DEBUG_80211 1683 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1684 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1685 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1686 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1687 lvif->lvif_bss_synched); 1688#endif 1689 LKPI_80211_LVIF_UNLOCK(lvif); 1690 error = ENOTRECOVERABLE; 1691 goto out; 1692 } 1693 lsta = lvif->lvif_bss; 1694 LKPI_80211_LVIF_UNLOCK(lvif); 1695 1696 KASSERT(lsta != NULL, ("%s: lsta %p! lvif %p vap %p\n", __func__, 1697 lsta, lvif, vap)); 1698 1699 IMPROVE("event callback?"); 1700 1701 /* End mgd_complete_tx. */ 1702 if (lsta->in_mgd) { 1703 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1704 prep_tx_info.success = false; 1705 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1706 lsta->in_mgd = false; 1707 } 1708 1709 /* Now start assoc. */ 1710 1711 /* Start mgd_prepare_tx. */ 1712 if (!lsta->in_mgd) { 1713 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1714 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1715 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1716 lsta->in_mgd = true; 1717 } 1718 1719 error = 0; 1720out: 1721 LKPI_80211_LHW_UNLOCK(lhw); 1722 IEEE80211_LOCK(vap->iv_ic); 1723 1724 return (error); 1725} 1726 1727static int 1728_lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1729{ 1730 struct lkpi_hw *lhw; 1731 struct ieee80211_hw *hw; 1732 struct lkpi_vif *lvif; 1733 struct ieee80211_vif *vif; 1734 struct ieee80211_node *ni; 1735 struct lkpi_sta *lsta; 1736 struct ieee80211_sta *sta; 1737 struct ieee80211_prep_tx_info prep_tx_info; 1738 enum ieee80211_bss_changed bss_changed; 1739 int error; 1740 1741 lhw = vap->iv_ic->ic_softc; 1742 hw = LHW_TO_HW(lhw); 1743 lvif = VAP_TO_LVIF(vap); 1744 vif = LVIF_TO_VIF(lvif); 1745 1746 IEEE80211_UNLOCK(vap->iv_ic); 1747 LKPI_80211_LHW_LOCK(lhw); 1748 1749 LKPI_80211_LVIF_LOCK(lvif); 1750#ifdef LINUXKPI_DEBUG_80211 1751 /* XXX-BZ KASSERT later; state going down so no action. */ 1752 if (lvif->lvif_bss == NULL) 1753 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1754 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1755 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1756 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1757 lvif->lvif_bss_synched); 1758#endif 1759 lsta = lvif->lvif_bss; 1760 LKPI_80211_LVIF_UNLOCK(lvif); 1761 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1762 "lvif %p vap %p\n", __func__, 1763 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1764 1765 ni = lsta->ni; /* Reference held for lvif_bss. */ 1766 sta = LSTA_TO_STA(lsta); 1767 1768 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1769 1770 /* flush, drop. */ 1771 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1772 1773 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1774 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1775 !lsta->in_mgd) { 1776 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1777 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1778 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1779 lsta->in_mgd = true; 1780 } 1781 1782 LKPI_80211_LHW_UNLOCK(lhw); 1783 IEEE80211_LOCK(vap->iv_ic); 1784 1785 /* Call iv_newstate first so we get potential DEAUTH packet out. */ 1786 error = lvif->iv_newstate(vap, nstate, arg); 1787 if (error != 0) { 1788 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1789 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1790 goto outni; 1791 } 1792 1793 IEEE80211_UNLOCK(vap->iv_ic); 1794 1795 /* Ensure the packets get out. */ 1796 lkpi_80211_flush_tx(lhw, lsta); 1797 1798 LKPI_80211_LHW_LOCK(lhw); 1799 1800 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1801 1802 /* Wake tx queues to get packet(s) out. */ 1803 lkpi_wake_tx_queues(hw, sta, false, true); 1804 1805 /* flush, no drop */ 1806 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1807 1808 /* End mgd_complete_tx. */ 1809 if (lsta->in_mgd) { 1810 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1811 prep_tx_info.success = false; 1812 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1813 lsta->in_mgd = false; 1814 } 1815 1816 /* sync_rx_queues */ 1817 lkpi_80211_mo_sync_rx_queues(hw); 1818 1819 /* sta_pre_rcu_remove */ 1820 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1821 1822 /* Take the station down. */ 1823 1824 /* Update sta and change state (from AUTH) to NONE. */ 1825 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1826 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1827 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1828 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1829 if (error != 0) { 1830 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1831 "failed: %d\n", __func__, __LINE__, error); 1832 goto out; 1833 } 1834 1835 /* See comment in lkpi_sta_run_to_init(). */ 1836 bss_changed = 0; 1837 bss_changed |= lkpi_disassoc(sta, vif, lhw); 1838 1839 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1840 1841 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1842 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1843 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1844 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1845 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1846 if (error != 0) { 1847 IMPROVE("do we need to undo the chan ctx?"); 1848 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1849 "failed: %d\n", __func__, __LINE__, error); 1850 goto out; 1851 } 1852 1853 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1854 1855 IMPROVE("Any bss_info changes to announce?"); 1856 vif->bss_conf.qos = 0; 1857 bss_changed |= BSS_CHANGED_QOS; 1858 vif->cfg.ssid_len = 0; 1859 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1860 bss_changed |= BSS_CHANGED_BSSID; 1861 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1862 1863 LKPI_80211_LVIF_LOCK(lvif); 1864 /* Remove ni reference for this cache of lsta. */ 1865 lvif->lvif_bss = NULL; 1866 lvif->lvif_bss_synched = false; 1867 LKPI_80211_LVIF_UNLOCK(lvif); 1868 lkpi_lsta_remove(lsta, lvif); 1869 /* 1870 * The very last release the reference on the ni for the ni/lsta on 1871 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1872 * and potentially freed. 1873 */ 1874 ieee80211_free_node(ni); 1875 1876 /* conf_tx */ 1877 1878 /* Take the chan ctx down. */ 1879 if (vif->chanctx_conf != NULL) { 1880 struct lkpi_chanctx *lchanctx; 1881 struct ieee80211_chanctx_conf *chanctx_conf; 1882 1883 chanctx_conf = vif->chanctx_conf; 1884 /* Remove vif context. */ 1885 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1886 /* NB: vif->chanctx_conf is NULL now. */ 1887 1888 lkpi_hw_conf_idle(hw, true); 1889 1890 /* Remove chan ctx. */ 1891 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1892 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1893 free(lchanctx, M_LKPI80211); 1894 } 1895 1896 error = EALREADY; 1897out: 1898 LKPI_80211_LHW_UNLOCK(lhw); 1899 IEEE80211_LOCK(vap->iv_ic); 1900outni: 1901 return (error); 1902} 1903 1904static int 1905lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1906{ 1907 int error; 1908 1909 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1910 if (error != 0 && error != EALREADY) 1911 return (error); 1912 1913 /* At this point iv_bss is long a new node! */ 1914 1915 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1916 return (error); 1917} 1918 1919static int 1920lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1921{ 1922 int error; 1923 1924 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1925 return (error); 1926} 1927 1928static int 1929lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1930{ 1931 int error; 1932 1933 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1934 return (error); 1935} 1936 1937static int 1938lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1939{ 1940 struct lkpi_hw *lhw; 1941 struct ieee80211_hw *hw; 1942 struct lkpi_vif *lvif; 1943 struct ieee80211_vif *vif; 1944 struct ieee80211_node *ni; 1945 struct lkpi_sta *lsta; 1946 struct ieee80211_sta *sta; 1947 struct ieee80211_prep_tx_info prep_tx_info; 1948 enum ieee80211_bss_changed bss_changed; 1949 int error; 1950 1951 lhw = vap->iv_ic->ic_softc; 1952 hw = LHW_TO_HW(lhw); 1953 lvif = VAP_TO_LVIF(vap); 1954 vif = LVIF_TO_VIF(lvif); 1955 1956 IEEE80211_UNLOCK(vap->iv_ic); 1957 LKPI_80211_LHW_LOCK(lhw); 1958 1959 LKPI_80211_LVIF_LOCK(lvif); 1960 /* XXX-BZ KASSERT later? */ 1961 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1962#ifdef LINUXKPI_DEBUG_80211 1963 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1964 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1965 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1966 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1967 lvif->lvif_bss_synched); 1968#endif 1969 LKPI_80211_LVIF_UNLOCK(lvif); 1970 error = ENOTRECOVERABLE; 1971 goto out; 1972 } 1973 lsta = lvif->lvif_bss; 1974 LKPI_80211_LVIF_UNLOCK(lvif); 1975 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1976 "lvif %p vap %p\n", __func__, 1977 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1978 1979 ni = lsta->ni; /* Reference held for lvif_bss. */ 1980 1981 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1982 "and to lesser extend ieee80211_notify_node_join"); 1983 1984 /* Finish assoc. */ 1985 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1986 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1987 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1988 sta = LSTA_TO_STA(lsta); 1989 sta->aid = IEEE80211_NODE_AID(ni); 1990#ifdef LKPI_80211_WME 1991 if (vap->iv_flags & IEEE80211_F_WME) 1992 sta->wme = true; 1993#endif 1994 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1995 if (error != 0) { 1996 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1997 "failed: %d\n", __func__, __LINE__, error); 1998 goto out; 1999 } 2000 2001 IMPROVE("wme / conf_tx [all]"); 2002 2003 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2004 bss_changed = 0; 2005#ifdef LKPI_80211_WME 2006 bss_changed |= lkpi_wme_update(lhw, vap, true); 2007#endif 2008 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 2009 vif->cfg.assoc = true; 2010 vif->cfg.aid = IEEE80211_NODE_AID(ni); 2011 bss_changed |= BSS_CHANGED_ASSOC; 2012 } 2013 /* We set SSID but this is not BSSID! */ 2014 vif->cfg.ssid_len = ni->ni_esslen; 2015 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 2016 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 2017 vif->bss_conf.use_short_preamble) { 2018 vif->bss_conf.use_short_preamble ^= 1; 2019 /* bss_changed |= BSS_CHANGED_??? */ 2020 } 2021 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 2022 vif->bss_conf.use_short_slot) { 2023 vif->bss_conf.use_short_slot ^= 1; 2024 /* bss_changed |= BSS_CHANGED_??? */ 2025 } 2026 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 2027 vif->bss_conf.qos) { 2028 vif->bss_conf.qos ^= 1; 2029 bss_changed |= BSS_CHANGED_QOS; 2030 } 2031 2032 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2033 2034 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2035 2036 /* - change_chanctx (if needed) 2037 * - event_callback 2038 */ 2039 2040 /* End mgd_complete_tx. */ 2041 if (lsta->in_mgd) { 2042 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2043 prep_tx_info.success = true; 2044 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2045 lsta->in_mgd = false; 2046 } 2047 2048 lkpi_hw_conf_idle(hw, false); 2049 2050 /* 2051 * And then: 2052 * - (more packets)? 2053 * - set_key 2054 * - set_default_unicast_key 2055 * - set_key (?) 2056 * - ipv6_addr_change (?) 2057 */ 2058 /* Prepare_multicast && configure_filter. */ 2059 lhw->update_mc = true; 2060 lkpi_update_mcast_filter(vap->iv_ic, true); 2061 2062 if (!ieee80211_node_is_authorized(ni)) { 2063 IMPROVE("net80211 does not consider node authorized"); 2064 } 2065 2066#if defined(LKPI_80211_HT) 2067 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 2068 lkpi_sta_sync_ht_from_ni(sta, ni, NULL); 2069#endif 2070 2071 /* Update sta_state (ASSOC to AUTHORIZED). */ 2072 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2073 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2074 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2075 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 2076 if (error != 0) { 2077 IMPROVE("undo some changes?"); 2078 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 2079 "failed: %d\n", __func__, __LINE__, error); 2080 goto out; 2081 } 2082 2083 /* - drv_config (?) 2084 * - bss_info_changed 2085 * - set_rekey_data (?) 2086 * 2087 * And now we should be passing packets. 2088 */ 2089 IMPROVE("Need that bssid setting, and the keys"); 2090 2091 bss_changed = 0; 2092 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2093 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2094 2095out: 2096 LKPI_80211_LHW_UNLOCK(lhw); 2097 IEEE80211_LOCK(vap->iv_ic); 2098 return (error); 2099} 2100 2101static int 2102lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2103{ 2104 int error; 2105 2106 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 2107 if (error == 0) 2108 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 2109 return (error); 2110} 2111 2112static int 2113lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2114{ 2115 struct lkpi_hw *lhw; 2116 struct ieee80211_hw *hw; 2117 struct lkpi_vif *lvif; 2118 struct ieee80211_vif *vif; 2119 struct ieee80211_node *ni; 2120 struct lkpi_sta *lsta; 2121 struct ieee80211_sta *sta; 2122 struct ieee80211_prep_tx_info prep_tx_info; 2123#if 0 2124 enum ieee80211_bss_changed bss_changed; 2125#endif 2126 int error; 2127 2128 lhw = vap->iv_ic->ic_softc; 2129 hw = LHW_TO_HW(lhw); 2130 lvif = VAP_TO_LVIF(vap); 2131 vif = LVIF_TO_VIF(lvif); 2132 2133 LKPI_80211_LVIF_LOCK(lvif); 2134#ifdef LINUXKPI_DEBUG_80211 2135 /* XXX-BZ KASSERT later; state going down so no action. */ 2136 if (lvif->lvif_bss == NULL) 2137 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2138 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2139 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2140 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2141 lvif->lvif_bss_synched); 2142#endif 2143 lsta = lvif->lvif_bss; 2144 LKPI_80211_LVIF_UNLOCK(lvif); 2145 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2146 "lvif %p vap %p\n", __func__, 2147 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2148 2149 ni = lsta->ni; /* Reference held for lvif_bss. */ 2150 sta = LSTA_TO_STA(lsta); 2151 2152 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2153 2154 IEEE80211_UNLOCK(vap->iv_ic); 2155 LKPI_80211_LHW_LOCK(lhw); 2156 2157 /* flush, drop. */ 2158 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2159 2160 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2161 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2162 !lsta->in_mgd) { 2163 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2164 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2165 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2166 lsta->in_mgd = true; 2167 } 2168 2169 LKPI_80211_LHW_UNLOCK(lhw); 2170 IEEE80211_LOCK(vap->iv_ic); 2171 2172 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2173 error = lvif->iv_newstate(vap, nstate, arg); 2174 if (error != 0) { 2175 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2176 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2177 goto outni; 2178 } 2179 2180 IEEE80211_UNLOCK(vap->iv_ic); 2181 2182 /* Ensure the packets get out. */ 2183 lkpi_80211_flush_tx(lhw, lsta); 2184 2185 LKPI_80211_LHW_LOCK(lhw); 2186 2187 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2188 2189 /* Wake tx queues to get packet(s) out. */ 2190 lkpi_wake_tx_queues(hw, sta, false, true); 2191 2192 /* flush, no drop */ 2193 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2194 2195 /* End mgd_complete_tx. */ 2196 if (lsta->in_mgd) { 2197 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2198 prep_tx_info.success = false; 2199 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2200 lsta->in_mgd = false; 2201 } 2202 2203#if 0 2204 /* sync_rx_queues */ 2205 lkpi_80211_mo_sync_rx_queues(hw); 2206 2207 /* sta_pre_rcu_remove */ 2208 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2209#endif 2210 2211 /* Take the station down. */ 2212 2213 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2214 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2215 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2216 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2217 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2218 if (error != 0) { 2219 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2220 "failed: %d\n", __func__, __LINE__, error); 2221 goto out; 2222 } 2223 2224 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2225 2226 /* Update sta_state (ASSOC to AUTH). */ 2227 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2228 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2229 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2230 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2231 if (error != 0) { 2232 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2233 "failed: %d\n", __func__, __LINE__, error); 2234 goto out; 2235 } 2236 2237 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2238 2239#if 0 2240 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2241 lkpi_disassoc(sta, vif, lhw); 2242#endif 2243 2244 error = EALREADY; 2245out: 2246 LKPI_80211_LHW_UNLOCK(lhw); 2247 IEEE80211_LOCK(vap->iv_ic); 2248outni: 2249 return (error); 2250} 2251 2252static int 2253lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2254{ 2255 struct lkpi_hw *lhw; 2256 struct ieee80211_hw *hw; 2257 struct lkpi_vif *lvif; 2258 struct ieee80211_vif *vif; 2259 struct ieee80211_node *ni; 2260 struct lkpi_sta *lsta; 2261 struct ieee80211_sta *sta; 2262 struct ieee80211_prep_tx_info prep_tx_info; 2263 enum ieee80211_bss_changed bss_changed; 2264 int error; 2265 2266 lhw = vap->iv_ic->ic_softc; 2267 hw = LHW_TO_HW(lhw); 2268 lvif = VAP_TO_LVIF(vap); 2269 vif = LVIF_TO_VIF(lvif); 2270 2271 IEEE80211_UNLOCK(vap->iv_ic); 2272 LKPI_80211_LHW_LOCK(lhw); 2273 2274 LKPI_80211_LVIF_LOCK(lvif); 2275#ifdef LINUXKPI_DEBUG_80211 2276 /* XXX-BZ KASSERT later; state going down so no action. */ 2277 if (lvif->lvif_bss == NULL) 2278 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2279 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2280 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2281 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2282 lvif->lvif_bss_synched); 2283#endif 2284 lsta = lvif->lvif_bss; 2285 LKPI_80211_LVIF_UNLOCK(lvif); 2286 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2287 "lvif %p vap %p\n", __func__, 2288 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2289 2290 ni = lsta->ni; /* Reference held for lvif_bss. */ 2291 sta = LSTA_TO_STA(lsta); 2292 2293 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2294 2295 /* flush, drop. */ 2296 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2297 2298 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2299 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2300 !lsta->in_mgd) { 2301 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2302 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2303 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2304 lsta->in_mgd = true; 2305 } 2306 2307 LKPI_80211_LHW_UNLOCK(lhw); 2308 IEEE80211_LOCK(vap->iv_ic); 2309 2310 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2311 error = lvif->iv_newstate(vap, nstate, arg); 2312 if (error != 0) { 2313 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2314 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2315 goto outni; 2316 } 2317 2318 IEEE80211_UNLOCK(vap->iv_ic); 2319 2320 /* Ensure the packets get out. */ 2321 lkpi_80211_flush_tx(lhw, lsta); 2322 2323 LKPI_80211_LHW_LOCK(lhw); 2324 2325 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2326 2327 /* Wake tx queues to get packet(s) out. */ 2328 lkpi_wake_tx_queues(hw, sta, false, true); 2329 2330 /* flush, no drop */ 2331 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2332 2333 /* End mgd_complete_tx. */ 2334 if (lsta->in_mgd) { 2335 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2336 prep_tx_info.success = false; 2337 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2338 lsta->in_mgd = false; 2339 } 2340 2341 /* sync_rx_queues */ 2342 lkpi_80211_mo_sync_rx_queues(hw); 2343 2344 /* sta_pre_rcu_remove */ 2345 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2346 2347 /* Take the station down. */ 2348 2349 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2350 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2351 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2352 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2353 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2354 if (error != 0) { 2355 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2356 "failed: %d\n", __func__, __LINE__, error); 2357 goto out; 2358 } 2359 2360 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2361 2362 /* Update sta_state (ASSOC to AUTH). */ 2363 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2364 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2365 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2366 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2367 if (error != 0) { 2368 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2369 "failed: %d\n", __func__, __LINE__, error); 2370 goto out; 2371 } 2372 2373 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2374 2375 /* Update sta and change state (from AUTH) to NONE. */ 2376 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2377 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 2378 "AUTH: %#x\n", __func__, lsta, lsta->state)); 2379 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2380 if (error != 0) { 2381 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2382 "failed: %d\n", __func__, __LINE__, error); 2383 goto out; 2384 } 2385 2386 bss_changed = 0; 2387 /* 2388 * Start updating bss info (bss_info_changed) (assoc, aid, ..). 2389 * 2390 * One would expect this to happen when going off AUTHORIZED. 2391 * See comment there; removes the sta from fw if not careful 2392 * (bss_info_changed() change is executed right away). 2393 * 2394 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 2395 * as otherwise drivers (iwlwifi at least) will silently not remove 2396 * the sta from the firmware and when we will add a new one trigger 2397 * a fw assert. 2398 * 2399 * The order which works best so far avoiding early removal or silent 2400 * non-removal seems to be (for iwlwifi::mld-mac80211.c cases; 2401 * the iwlwifi:mac80211.c case still to be tested): 2402 * 1) lkpi_disassoc(): set vif->cfg.assoc = false (aid=0 side effect here) 2403 * 2) call the last sta_state update -> IEEE80211_STA_NOTEXIST 2404 * (removes the sta given assoc is false) 2405 * 3) add the remaining BSS_CHANGED changes and call bss_info_changed() 2406 * 4) call unassign_vif_chanctx 2407 * 5) call lkpi_hw_conf_idle 2408 * 6) call remove_chanctx 2409 */ 2410 bss_changed |= lkpi_disassoc(sta, vif, lhw); 2411 2412 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2413 2414 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 2415 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2416 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 2417 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 2418 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 2419 if (error != 0) { 2420 IMPROVE("do we need to undo the chan ctx?"); 2421 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 2422 "failed: %d\n", __func__, __LINE__, error); 2423 goto out; 2424 } 2425 2426 lkpi_lsta_remove(lsta, lvif); 2427 2428 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 2429 2430 IMPROVE("Any bss_info changes to announce?"); 2431 vif->bss_conf.qos = 0; 2432 bss_changed |= BSS_CHANGED_QOS; 2433 vif->cfg.ssid_len = 0; 2434 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 2435 bss_changed |= BSS_CHANGED_BSSID; 2436 vif->bss_conf.use_short_preamble = false; 2437 vif->bss_conf.qos = false; 2438 /* XXX BSS_CHANGED_???? */ 2439 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2440 2441 LKPI_80211_LVIF_LOCK(lvif); 2442 /* Remove ni reference for this cache of lsta. */ 2443 lvif->lvif_bss = NULL; 2444 lvif->lvif_bss_synched = false; 2445 LKPI_80211_LVIF_UNLOCK(lvif); 2446 /* 2447 * The very last release the reference on the ni for the ni/lsta on 2448 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 2449 * and potentially freed. 2450 */ 2451 ieee80211_free_node(ni); 2452 2453 /* conf_tx */ 2454 2455 /* Take the chan ctx down. */ 2456 if (vif->chanctx_conf != NULL) { 2457 struct lkpi_chanctx *lchanctx; 2458 struct ieee80211_chanctx_conf *chanctx_conf; 2459 2460 chanctx_conf = vif->chanctx_conf; 2461 /* Remove vif context. */ 2462 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 2463 /* NB: vif->chanctx_conf is NULL now. */ 2464 2465 lkpi_hw_conf_idle(hw, true); 2466 2467 /* Remove chan ctx. */ 2468 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2469 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2470 free(lchanctx, M_LKPI80211); 2471 } 2472 2473 error = EALREADY; 2474out: 2475 LKPI_80211_LHW_UNLOCK(lhw); 2476 IEEE80211_LOCK(vap->iv_ic); 2477outni: 2478 return (error); 2479} 2480 2481static int 2482lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2483{ 2484 2485 return (lkpi_sta_run_to_init(vap, nstate, arg)); 2486} 2487 2488static int 2489lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2490{ 2491 int error; 2492 2493 error = lkpi_sta_run_to_init(vap, nstate, arg); 2494 if (error != 0 && error != EALREADY) 2495 return (error); 2496 2497 /* At this point iv_bss is long a new node! */ 2498 2499 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 2500 return (error); 2501} 2502 2503/* -------------------------------------------------------------------------- */ 2504 2505/* 2506 * The matches the documented state changes in net80211::sta_newstate(). 2507 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 2508 * there are "invalid" (so there is a room for failure here). 2509 */ 2510struct fsm_state { 2511 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 2512 enum ieee80211_state ostate; 2513 enum ieee80211_state nstate; 2514 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 2515} sta_state_fsm[] = { 2516 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 2517 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 2518 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 2519 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 2520 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 2521 2522 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2523 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2524 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 2525 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 2526 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 2527 2528 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2529 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2530 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2531 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2532 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2533 2534 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2535 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2536 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2537 2538 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2539 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2540 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2541 2542 /* Dummy at the end without handler. */ 2543 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2544}; 2545 2546static int 2547lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2548{ 2549 struct ieee80211com *ic; 2550 struct lkpi_hw *lhw; 2551 struct lkpi_vif *lvif; 2552 struct ieee80211_vif *vif; 2553 struct fsm_state *s; 2554 enum ieee80211_state ostate; 2555 int error; 2556 2557 ic = vap->iv_ic; 2558 IEEE80211_LOCK_ASSERT(ic); 2559 ostate = vap->iv_state; 2560 2561#ifdef LINUXKPI_DEBUG_80211 2562 if (linuxkpi_debug_80211 & D80211_TRACE) 2563 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2564 __func__, __LINE__, vap, nstate, arg); 2565#endif 2566 2567 if (vap->iv_opmode == IEEE80211_M_STA) { 2568 2569 lhw = ic->ic_softc; 2570 lvif = VAP_TO_LVIF(vap); 2571 vif = LVIF_TO_VIF(lvif); 2572 2573 /* No need to replicate this in most state handlers. */ 2574 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2575 lkpi_stop_hw_scan(lhw, vif); 2576 2577 s = sta_state_fsm; 2578 2579 } else { 2580 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2581 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2582 return (ENOSYS); 2583 } 2584 2585 error = 0; 2586 for (; s->handler != NULL; s++) { 2587 if (ostate == s->ostate && nstate == s->nstate) { 2588#ifdef LINUXKPI_DEBUG_80211 2589 if (linuxkpi_debug_80211 & D80211_TRACE) 2590 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2591 " %d (%s): arg %d.\n", __func__, 2592 ostate, ieee80211_state_name[ostate], 2593 nstate, ieee80211_state_name[nstate], arg); 2594#endif 2595 error = s->handler(vap, nstate, arg); 2596 break; 2597 } 2598 } 2599 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2600 2601 if (s->handler == NULL) { 2602 IMPROVE("turn this into a KASSERT\n"); 2603 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2604 "%d (%s) -> %d (%s)\n", __func__, 2605 ostate, ieee80211_state_name[ostate], 2606 nstate, ieee80211_state_name[nstate]); 2607 return (ENOSYS); 2608 } 2609 2610 if (error == EALREADY) { 2611#ifdef LINUXKPI_DEBUG_80211 2612 if (linuxkpi_debug_80211 & D80211_TRACE) 2613 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2614 "%d (%s): iv_newstate already handled: %d.\n", 2615 __func__, ostate, ieee80211_state_name[ostate], 2616 nstate, ieee80211_state_name[nstate], error); 2617#endif 2618 return (0); 2619 } 2620 2621 if (error != 0) { 2622 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2623 "%d (%s) -> %d (%s)\n", __func__, error, 2624 ostate, ieee80211_state_name[ostate], 2625 nstate, ieee80211_state_name[nstate]); 2626 return (error); 2627 } 2628 2629#ifdef LINUXKPI_DEBUG_80211 2630 if (linuxkpi_debug_80211 & D80211_TRACE) 2631 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2632 "calling net80211 parent\n", 2633 __func__, __LINE__, vap, nstate, arg); 2634#endif 2635 2636 return (lvif->iv_newstate(vap, nstate, arg)); 2637} 2638 2639/* -------------------------------------------------------------------------- */ 2640 2641/* 2642 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2643 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2644 * new node without us knowing and thus our ni/lsta are out of sync. 2645 */ 2646static struct ieee80211_node * 2647lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2648{ 2649 struct lkpi_vif *lvif; 2650 struct ieee80211_node *rni; 2651 2652 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2653 2654 lvif = VAP_TO_LVIF(vap); 2655 2656 LKPI_80211_LVIF_LOCK(lvif); 2657 lvif->lvif_bss_synched = false; 2658 LKPI_80211_LVIF_UNLOCK(lvif); 2659 2660 rni = lvif->iv_update_bss(vap, ni); 2661 return (rni); 2662} 2663 2664#ifdef LKPI_80211_WME 2665static int 2666lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2667{ 2668 struct ieee80211com *ic; 2669 struct ieee80211_hw *hw; 2670 struct lkpi_vif *lvif; 2671 struct ieee80211_vif *vif; 2672 struct chanAccParams chp; 2673 struct wmeParams wmeparr[WME_NUM_AC]; 2674 struct ieee80211_tx_queue_params txqp; 2675 enum ieee80211_bss_changed changed; 2676 int error; 2677 uint16_t ac; 2678 2679 IMPROVE(); 2680 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2681 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2682 2683 if (vap == NULL) 2684 return (0); 2685 2686 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2687 return (0); 2688 2689 if (lhw->ops->conf_tx == NULL) 2690 return (0); 2691 2692 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2693 lhw->update_wme = true; 2694 return (0); 2695 } 2696 lhw->update_wme = false; 2697 2698 ic = lhw->ic; 2699 ieee80211_wme_ic_getparams(ic, &chp); 2700 IEEE80211_LOCK(ic); 2701 for (ac = 0; ac < WME_NUM_AC; ac++) 2702 wmeparr[ac] = chp.cap_wmeParams[ac]; 2703 IEEE80211_UNLOCK(ic); 2704 2705 hw = LHW_TO_HW(lhw); 2706 lvif = VAP_TO_LVIF(vap); 2707 vif = LVIF_TO_VIF(lvif); 2708 2709 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2710 LKPI_80211_LHW_LOCK(lhw); 2711 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2712 struct wmeParams *wmep; 2713 2714 wmep = &wmeparr[ac]; 2715 bzero(&txqp, sizeof(txqp)); 2716 txqp.cw_min = wmep->wmep_logcwmin; 2717 txqp.cw_max = wmep->wmep_logcwmax; 2718 txqp.txop = wmep->wmep_txopLimit; 2719 txqp.aifs = wmep->wmep_aifsn; 2720 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2721 if (error != 0) 2722 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2723 __func__, ac, error); 2724 } 2725 LKPI_80211_LHW_UNLOCK(lhw); 2726 changed = BSS_CHANGED_QOS; 2727 if (!planned) 2728 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2729 2730 return (changed); 2731} 2732#endif 2733 2734static int 2735lkpi_ic_wme_update(struct ieee80211com *ic) 2736{ 2737#ifdef LKPI_80211_WME 2738 struct ieee80211vap *vap; 2739 struct lkpi_hw *lhw; 2740 2741 IMPROVE("Use the per-VAP callback in net80211."); 2742 vap = TAILQ_FIRST(&ic->ic_vaps); 2743 if (vap == NULL) 2744 return (0); 2745 2746 lhw = ic->ic_softc; 2747 2748 lkpi_wme_update(lhw, vap, false); 2749#endif 2750 return (0); /* unused */ 2751} 2752 2753static struct ieee80211vap * 2754lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2755 int unit, enum ieee80211_opmode opmode, int flags, 2756 const uint8_t bssid[IEEE80211_ADDR_LEN], 2757 const uint8_t mac[IEEE80211_ADDR_LEN]) 2758{ 2759 struct lkpi_hw *lhw; 2760 struct ieee80211_hw *hw; 2761 struct lkpi_vif *lvif; 2762 struct ieee80211vap *vap; 2763 struct ieee80211_vif *vif; 2764 struct ieee80211_tx_queue_params txqp; 2765 enum ieee80211_bss_changed changed; 2766 size_t len; 2767 int error, i; 2768 uint16_t ac; 2769 2770 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2771 return (NULL); 2772 2773 lhw = ic->ic_softc; 2774 hw = LHW_TO_HW(lhw); 2775 2776 len = sizeof(*lvif); 2777 len += hw->vif_data_size; /* vif->drv_priv */ 2778 2779 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2780 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2781 TAILQ_INIT(&lvif->lsta_head); 2782 lvif->lvif_bss = NULL; 2783 lvif->lvif_bss_synched = false; 2784 vap = LVIF_TO_VAP(lvif); 2785 2786 vif = LVIF_TO_VIF(lvif); 2787 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2788 vif->p2p = false; 2789 vif->probe_req_reg = false; 2790 vif->type = lkpi_opmode_to_vif_type(opmode); 2791 lvif->wdev.iftype = vif->type; 2792 /* Need to fill in other fields as well. */ 2793 IMPROVE(); 2794 2795 /* XXX-BZ hardcoded for now! */ 2796#if 1 2797 vif->chanctx_conf = NULL; 2798 vif->bss_conf.vif = vif; 2799 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2800 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2801 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2802 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2803 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2804 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2805 vif->bss_conf.qos = false; 2806 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2807 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2808 vif->cfg.aid = 0; 2809 vif->cfg.assoc = false; 2810 vif->cfg.idle = true; 2811 vif->cfg.ps = false; 2812 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2813 /* 2814 * We need to initialize it to something as the bss_info_changed call 2815 * will try to copy from it in iwlwifi and NULL is a panic. 2816 * We will set the proper one in scan_to_auth() before being assoc. 2817 */ 2818 vif->bss_conf.bssid = ieee80211broadcastaddr; 2819#endif 2820#if 0 2821 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2822 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2823 vif->bss_conf.beacon_int = ic->ic_bintval; 2824 /* iwlwifi bug. */ 2825 if (vif->bss_conf.beacon_int < 16) 2826 vif->bss_conf.beacon_int = 16; 2827#endif 2828 2829 /* Link Config */ 2830 vif->link_conf[0] = &vif->bss_conf; 2831 for (i = 0; i < nitems(vif->link_conf); i++) { 2832 IMPROVE("more than 1 link one day"); 2833 } 2834 2835 /* Setup queue defaults; driver may override in (*add_interface). */ 2836 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2837 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2838 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2839 else if (hw->queues >= IEEE80211_NUM_ACS) 2840 vif->hw_queue[i] = i; 2841 else 2842 vif->hw_queue[i] = 0; 2843 2844 /* Initialize the queue to running. Stopped? */ 2845 lvif->hw_queue_stopped[i] = false; 2846 } 2847 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2848 2849 IMPROVE(); 2850 2851 error = lkpi_80211_mo_start(hw); 2852 if (error != 0) { 2853 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2854 mtx_destroy(&lvif->mtx); 2855 free(lvif, M_80211_VAP); 2856 return (NULL); 2857 } 2858 2859 error = lkpi_80211_mo_add_interface(hw, vif); 2860 if (error != 0) { 2861 IMPROVE(); /* XXX-BZ mo_stop()? */ 2862 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2863 mtx_destroy(&lvif->mtx); 2864 free(lvif, M_80211_VAP); 2865 return (NULL); 2866 } 2867 2868 LKPI_80211_LHW_LVIF_LOCK(lhw); 2869 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2870 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2871 2872 /* Set bss_info. */ 2873 changed = 0; 2874 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2875 2876 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2877 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2878 LKPI_80211_LHW_LOCK(lhw); 2879 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2880 2881 bzero(&txqp, sizeof(txqp)); 2882 txqp.cw_min = 15; 2883 txqp.cw_max = 1023; 2884 txqp.txop = 0; 2885 txqp.aifs = 2; 2886 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2887 if (error != 0) 2888 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2889 __func__, ac, error); 2890 } 2891 LKPI_80211_LHW_UNLOCK(lhw); 2892 changed = BSS_CHANGED_QOS; 2893 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2894 2895 /* Force MC init. */ 2896 lkpi_update_mcast_filter(ic, true); 2897 2898 IMPROVE(); 2899 2900 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2901 2902 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2903 lvif->iv_newstate = vap->iv_newstate; 2904 vap->iv_newstate = lkpi_iv_newstate; 2905 lvif->iv_update_bss = vap->iv_update_bss; 2906 vap->iv_update_bss = lkpi_iv_update_bss; 2907 2908 /* Key management. */ 2909 if (lhw->ops->set_key != NULL) { 2910#ifdef LKPI_80211_HW_CRYPTO 2911 vap->iv_key_set = lkpi_iv_key_set; 2912 vap->iv_key_delete = lkpi_iv_key_delete; 2913#endif 2914 } 2915 2916#ifdef LKPI_80211_HT 2917 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 2918#endif 2919 2920 ieee80211_ratectl_init(vap); 2921 2922 /* Complete setup. */ 2923 ieee80211_vap_attach(vap, ieee80211_media_change, 2924 ieee80211_media_status, mac); 2925 2926 if (hw->max_listen_interval == 0) 2927 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2928 hw->conf.listen_interval = hw->max_listen_interval; 2929 ic->ic_set_channel(ic); 2930 2931 /* XXX-BZ do we need to be able to update these? */ 2932 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2933 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2934 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2935 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2936 /* any others? */ 2937 IMPROVE(); 2938 2939 return (vap); 2940} 2941 2942void 2943linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2944{ 2945 2946 wiphy_unregister(hw->wiphy); 2947 linuxkpi_ieee80211_ifdetach(hw); 2948 2949 IMPROVE(); 2950} 2951 2952void 2953linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2954{ 2955 2956 TODO(); 2957} 2958 2959static void 2960lkpi_ic_vap_delete(struct ieee80211vap *vap) 2961{ 2962 struct ieee80211com *ic; 2963 struct lkpi_hw *lhw; 2964 struct ieee80211_hw *hw; 2965 struct lkpi_vif *lvif; 2966 struct ieee80211_vif *vif; 2967 2968 lvif = VAP_TO_LVIF(vap); 2969 vif = LVIF_TO_VIF(lvif); 2970 ic = vap->iv_ic; 2971 lhw = ic->ic_softc; 2972 hw = LHW_TO_HW(lhw); 2973 2974 LKPI_80211_LHW_LVIF_LOCK(lhw); 2975 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2976 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2977 2978 ieee80211_ratectl_deinit(vap); 2979 ieee80211_vap_detach(vap); 2980 2981 IMPROVE("clear up other bits in this state"); 2982 2983 lkpi_80211_mo_remove_interface(hw, vif); 2984 2985 /* Single VAP, so we can do this here. */ 2986 lkpi_80211_mo_stop(hw); 2987 2988 mtx_destroy(&lvif->mtx); 2989 free(lvif, M_80211_VAP); 2990} 2991 2992static void 2993lkpi_ic_update_mcast(struct ieee80211com *ic) 2994{ 2995 2996 lkpi_update_mcast_filter(ic, false); 2997 TRACEOK(); 2998} 2999 3000static void 3001lkpi_ic_update_promisc(struct ieee80211com *ic) 3002{ 3003 3004 UNIMPLEMENTED; 3005} 3006 3007static void 3008lkpi_ic_update_chw(struct ieee80211com *ic) 3009{ 3010 3011 UNIMPLEMENTED; 3012} 3013 3014/* Start / stop device. */ 3015static void 3016lkpi_ic_parent(struct ieee80211com *ic) 3017{ 3018 struct lkpi_hw *lhw; 3019#ifdef HW_START_STOP 3020 struct ieee80211_hw *hw; 3021 int error; 3022#endif 3023 bool start_all; 3024 3025 IMPROVE(); 3026 3027 lhw = ic->ic_softc; 3028#ifdef HW_START_STOP 3029 hw = LHW_TO_HW(lhw); 3030#endif 3031 start_all = false; 3032 3033 /* IEEE80211_UNLOCK(ic); */ 3034 LKPI_80211_LHW_LOCK(lhw); 3035 if (ic->ic_nrunning > 0) { 3036#ifdef HW_START_STOP 3037 error = lkpi_80211_mo_start(hw); 3038 if (error == 0) 3039#endif 3040 start_all = true; 3041 } else { 3042#ifdef HW_START_STOP 3043 lkpi_80211_mo_stop(hw); 3044#endif 3045 } 3046 LKPI_80211_LHW_UNLOCK(lhw); 3047 /* IEEE80211_LOCK(ic); */ 3048 3049 if (start_all) 3050 ieee80211_start_all(ic); 3051} 3052 3053bool 3054linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 3055 size_t ie_ids_len) 3056{ 3057 int i; 3058 3059 for (i = 0; i < ie_ids_len; i++) { 3060 if (ie == *ie_ids) 3061 return (true); 3062 } 3063 3064 return (false); 3065} 3066 3067/* Return true if skipped; false if error. */ 3068bool 3069linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 3070{ 3071 size_t x; 3072 uint8_t l; 3073 3074 x = *xp; 3075 3076 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 3077 __func__, x, ies_len, ies)); 3078 l = ies[x + 1]; 3079 x += 2 + l; 3080 3081 if (x > ies_len) 3082 return (false); 3083 3084 *xp = x; 3085 return (true); 3086} 3087 3088static uint8_t * 3089lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 3090 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 3091{ 3092 struct ieee80211_supported_band *supband; 3093 struct linuxkpi_ieee80211_channel *channels; 3094 struct ieee80211com *ic; 3095 const struct ieee80211_channel *chan; 3096 const struct ieee80211_rateset *rs; 3097 uint8_t *pb; 3098 int band, i; 3099 3100 ic = vap->iv_ic; 3101 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3102 if ((band_mask & (1 << band)) == 0) 3103 continue; 3104 3105 supband = hw->wiphy->bands[band]; 3106 /* 3107 * This should not happen; 3108 * band_mask is a bitmask of valid bands to scan on. 3109 */ 3110 if (supband == NULL || supband->n_channels == 0) 3111 continue; 3112 3113 /* Find a first channel to get the mode and rates from. */ 3114 channels = supband->channels; 3115 chan = NULL; 3116 for (i = 0; i < supband->n_channels; i++) { 3117 3118 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3119 continue; 3120 3121 chan = ieee80211_find_channel(ic, 3122 channels[i].center_freq, 0); 3123 if (chan != NULL) 3124 break; 3125 } 3126 3127 /* This really should not happen. */ 3128 if (chan == NULL) 3129 continue; 3130 3131 pb = p; 3132 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 3133 p = ieee80211_add_rates(p, rs); 3134 p = ieee80211_add_xrates(p, rs); 3135 3136#if defined(LKPI_80211_HT) 3137 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 3138 struct ieee80211_channel *c; 3139 3140 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3141 vap->iv_flags_ht); 3142 p = ieee80211_add_htcap_ch(p, vap, c); 3143 } 3144#endif 3145#if defined(LKPI_80211_VHT) 3146 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 3147 struct ieee80211_channel *c; 3148 3149 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3150 vap->iv_flags_ht); 3151 c = ieee80211_vht_adjust_channel(ic, c, 3152 vap->iv_vht_flags); 3153 p = ieee80211_add_vhtcap_ch(p, vap, c); 3154 } 3155#endif 3156 3157 scan_ies->ies[band] = pb; 3158 scan_ies->len[band] = p - pb; 3159 } 3160 3161 /* Add common_ies */ 3162 pb = p; 3163 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3164 vap->iv_wpa_ie != NULL) { 3165 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 3166 p += 2 + vap->iv_wpa_ie[1]; 3167 } 3168 if (vap->iv_appie_probereq != NULL) { 3169 memcpy(p, vap->iv_appie_probereq->ie_data, 3170 vap->iv_appie_probereq->ie_len); 3171 p += vap->iv_appie_probereq->ie_len; 3172 } 3173 scan_ies->common_ies = pb; 3174 scan_ies->common_ie_len = p - pb; 3175 3176 return (p); 3177} 3178 3179static void 3180lkpi_ic_scan_start(struct ieee80211com *ic) 3181{ 3182 struct lkpi_hw *lhw; 3183 struct ieee80211_hw *hw; 3184 struct lkpi_vif *lvif; 3185 struct ieee80211_vif *vif; 3186 struct ieee80211_scan_state *ss; 3187 struct ieee80211vap *vap; 3188 int error; 3189 bool is_hw_scan; 3190 3191 lhw = ic->ic_softc; 3192 LKPI_80211_LHW_SCAN_LOCK(lhw); 3193 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3194 /* A scan is still running. */ 3195 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3196 return; 3197 } 3198 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3199 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3200 3201 ss = ic->ic_scan; 3202 vap = ss->ss_vap; 3203 if (vap->iv_state != IEEE80211_S_SCAN) { 3204 IMPROVE("We need to be able to scan if not in S_SCAN"); 3205 return; 3206 } 3207 3208 hw = LHW_TO_HW(lhw); 3209 if (!is_hw_scan) { 3210 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 3211 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3212sw_scan: 3213 lvif = VAP_TO_LVIF(vap); 3214 vif = LVIF_TO_VIF(lvif); 3215 3216 if (vap->iv_state == IEEE80211_S_SCAN) 3217 lkpi_hw_conf_idle(hw, false); 3218 3219 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 3220 /* net80211::scan_start() handled PS for us. */ 3221 IMPROVE(); 3222 /* XXX Also means it is too late to flush queues? 3223 * need to check iv_sta_ps or overload? */ 3224 /* XXX want to adjust ss end time/ maxdwell? */ 3225 3226 } else { 3227 struct ieee80211_channel *c; 3228 struct ieee80211_scan_request *hw_req; 3229 struct linuxkpi_ieee80211_channel *lc, **cpp; 3230 struct cfg80211_ssid *ssids; 3231 struct cfg80211_scan_6ghz_params *s6gp; 3232 size_t chan_len, nchan, ssids_len, s6ghzlen; 3233 int band, i, ssid_count, common_ie_len; 3234 uint32_t band_mask; 3235 uint8_t *ie, *ieend; 3236 bool running; 3237 3238 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 3239 ssids_len = ssid_count * sizeof(*ssids); 3240 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 3241 3242 band_mask = 0; 3243 nchan = 0; 3244 for (i = ss->ss_next; i < ss->ss_last; i++) { 3245 nchan++; 3246 band = lkpi_net80211_chan_to_nl80211_band( 3247 ss->ss_chans[ss->ss_next + i]); 3248 band_mask |= (1 << band); 3249 } 3250 3251 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 3252 IMPROVE("individual band scans not yet supported, only scanning first band"); 3253 /* In theory net80211 should drive this. */ 3254 /* Probably we need to add local logic for now; 3255 * need to deal with scan_complete 3256 * and cancel_scan and keep local state. 3257 * Also cut the nchan down above. 3258 */ 3259 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 3260 } 3261 3262 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 3263 3264 common_ie_len = 0; 3265 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3266 vap->iv_wpa_ie != NULL) 3267 common_ie_len += vap->iv_wpa_ie[1]; 3268 if (vap->iv_appie_probereq != NULL) 3269 common_ie_len += vap->iv_appie_probereq->ie_len; 3270 3271 /* We would love to check this at an earlier stage... */ 3272 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 3273 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 3274 "wiphy->max_scan_ie_len %d\n", __func__, 3275 common_ie_len, hw->wiphy->max_scan_ie_len); 3276 } 3277 3278 hw_req = malloc(sizeof(*hw_req) + ssids_len + 3279 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 3280 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 3281 3282 hw_req->req.flags = 0; /* XXX ??? */ 3283 /* hw_req->req.wdev */ 3284 hw_req->req.wiphy = hw->wiphy; 3285 hw_req->req.no_cck = false; /* XXX */ 3286#if 0 3287 /* This seems to pessimise default scanning behaviour. */ 3288 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 3289 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 3290#endif 3291#ifdef __notyet__ 3292 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 3293 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 3294 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 3295#endif 3296 eth_broadcast_addr(hw_req->req.bssid); 3297 3298 hw_req->req.n_channels = nchan; 3299 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 3300 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 3301 for (i = 0; i < nchan; i++) { 3302 *(cpp + i) = 3303 (struct linuxkpi_ieee80211_channel *)(lc + i); 3304 } 3305 for (i = 0; i < nchan; i++) { 3306 c = ss->ss_chans[ss->ss_next + i]; 3307 3308 lc->hw_value = c->ic_ieee; 3309 lc->center_freq = c->ic_freq; /* XXX */ 3310 /* lc->flags */ 3311 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 3312 lc->max_power = c->ic_maxpower; 3313 /* lc-> ... */ 3314 lc++; 3315 } 3316 3317 hw_req->req.n_ssids = ssid_count; 3318 if (hw_req->req.n_ssids > 0) { 3319 ssids = (struct cfg80211_ssid *)lc; 3320 hw_req->req.ssids = ssids; 3321 for (i = 0; i < ssid_count; i++) { 3322 ssids->ssid_len = ss->ss_ssid[i].len; 3323 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 3324 ss->ss_ssid[i].len); 3325 ssids++; 3326 } 3327 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 3328 } else { 3329 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 3330 } 3331 3332 /* 6GHz one day. */ 3333 hw_req->req.n_6ghz_params = 0; 3334 hw_req->req.scan_6ghz_params = NULL; 3335 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 3336 /* s6gp->... */ 3337 3338 ie = ieend = (uint8_t *)s6gp; 3339 /* Copy per-band IEs, copy common IEs */ 3340 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 3341 hw_req->req.ie = ie; 3342 hw_req->req.ie_len = ieend - ie; 3343 3344 lvif = VAP_TO_LVIF(vap); 3345 vif = LVIF_TO_VIF(lvif); 3346 3347 LKPI_80211_LHW_SCAN_LOCK(lhw); 3348 /* Re-check under lock. */ 3349 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 3350 if (!running) { 3351 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 3352 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 3353 3354 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 3355 lhw->hw_req = hw_req; 3356 } 3357 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3358 if (running) { 3359 free(hw_req, M_LKPI80211); 3360 return; 3361 } 3362 3363 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 3364 if (error != 0) { 3365 ieee80211_cancel_scan(vap); 3366 3367 /* 3368 * ieee80211_scan_completed must be called in either 3369 * case of error or none. So let the free happen there 3370 * and only there. 3371 * That would be fine in theory but in practice drivers 3372 * behave differently: 3373 * ath10k does not return hw_scan until after scan_complete 3374 * and can then still return an error. 3375 * rtw88 can return 1 or -EBUSY without scan_complete 3376 * iwlwifi can return various errors before scan starts 3377 * ... 3378 * So we cannot rely on that behaviour and have to check 3379 * and balance between both code paths. 3380 */ 3381 LKPI_80211_LHW_SCAN_LOCK(lhw); 3382 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3383 free(lhw->hw_req, M_LKPI80211); 3384 lhw->hw_req = NULL; 3385 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3386 } 3387 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3388 3389 /* 3390 * XXX-SIGH magic number. 3391 * rtw88 has a magic "return 1" if offloading scan is 3392 * not possible. Fall back to sw scan in that case. 3393 */ 3394 if (error == 1) { 3395 LKPI_80211_LHW_SCAN_LOCK(lhw); 3396 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 3397 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3398 /* 3399 * XXX If we clear this now and later a driver 3400 * thinks it * can do a hw_scan again, we will 3401 * currently not re-enable it? 3402 */ 3403 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3404 ieee80211_start_scan(vap, 3405 IEEE80211_SCAN_ACTIVE | 3406 IEEE80211_SCAN_NOPICK | 3407 IEEE80211_SCAN_ONCE, 3408 IEEE80211_SCAN_FOREVER, 3409 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 3410 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 3411 vap->iv_des_nssid, vap->iv_des_ssid); 3412 goto sw_scan; 3413 } 3414 3415 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 3416 __func__, error); 3417 } 3418 } 3419} 3420 3421static void 3422lkpi_ic_scan_end(struct ieee80211com *ic) 3423{ 3424 struct lkpi_hw *lhw; 3425 bool is_hw_scan; 3426 3427 lhw = ic->ic_softc; 3428 LKPI_80211_LHW_SCAN_LOCK(lhw); 3429 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 3430 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3431 return; 3432 } 3433 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3434 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3435 3436 if (!is_hw_scan) { 3437 struct ieee80211_scan_state *ss; 3438 struct ieee80211vap *vap; 3439 struct ieee80211_hw *hw; 3440 struct lkpi_vif *lvif; 3441 struct ieee80211_vif *vif; 3442 3443 ss = ic->ic_scan; 3444 vap = ss->ss_vap; 3445 hw = LHW_TO_HW(lhw); 3446 lvif = VAP_TO_LVIF(vap); 3447 vif = LVIF_TO_VIF(lvif); 3448 3449 lkpi_80211_mo_sw_scan_complete(hw, vif); 3450 3451 /* Send PS to stop buffering if n80211 does not for us? */ 3452 3453 if (vap->iv_state == IEEE80211_S_SCAN) 3454 lkpi_hw_conf_idle(hw, true); 3455 } 3456} 3457 3458static void 3459lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 3460 unsigned long maxdwell) 3461{ 3462 struct lkpi_hw *lhw; 3463 bool is_hw_scan; 3464 3465 lhw = ss->ss_ic->ic_softc; 3466 LKPI_80211_LHW_SCAN_LOCK(lhw); 3467 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3468 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3469 if (!is_hw_scan) 3470 lhw->ic_scan_curchan(ss, maxdwell); 3471} 3472 3473static void 3474lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 3475{ 3476 struct lkpi_hw *lhw; 3477 bool is_hw_scan; 3478 3479 lhw = ss->ss_ic->ic_softc; 3480 LKPI_80211_LHW_SCAN_LOCK(lhw); 3481 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3482 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3483 if (!is_hw_scan) 3484 lhw->ic_scan_mindwell(ss); 3485} 3486 3487static void 3488lkpi_ic_set_channel(struct ieee80211com *ic) 3489{ 3490 struct lkpi_hw *lhw; 3491 struct ieee80211_hw *hw; 3492 struct ieee80211_channel *c; 3493 struct linuxkpi_ieee80211_channel *chan; 3494 int error; 3495 bool hw_scan_running; 3496 3497 lhw = ic->ic_softc; 3498 3499 /* If we do not support (*config)() save us the work. */ 3500 if (lhw->ops->config == NULL) 3501 return; 3502 3503 /* If we have a hw_scan running do not switch channels. */ 3504 LKPI_80211_LHW_SCAN_LOCK(lhw); 3505 hw_scan_running = 3506 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3507 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3508 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3509 if (hw_scan_running) 3510 return; 3511 3512 c = ic->ic_curchan; 3513 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3514 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3515 c, lhw->ops->config); 3516 return; 3517 } 3518 3519 chan = lkpi_find_lkpi80211_chan(lhw, c); 3520 if (chan == NULL) { 3521 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3522 c, chan); 3523 return; 3524 } 3525 3526 /* XXX max power for scanning? */ 3527 IMPROVE(); 3528 3529 hw = LHW_TO_HW(lhw); 3530 cfg80211_chandef_create(&hw->conf.chandef, chan, 3531#ifdef LKPI_80211_HT 3532 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 3533#endif 3534 NL80211_CHAN_NO_HT); 3535 3536 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3537 if (error != 0 && error != EOPNOTSUPP) { 3538 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3539 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3540 /* XXX should we unroll to the previous chandef? */ 3541 IMPROVE(); 3542 } else { 3543 /* Update radiotap channels as well. */ 3544 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3545 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3546 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3547 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3548 } 3549 3550 /* Currently PS is hard coded off! Not sure it belongs here. */ 3551 IMPROVE(); 3552 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3553 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3554 hw->conf.flags &= ~IEEE80211_CONF_PS; 3555 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3556 if (error != 0 && error != EOPNOTSUPP) 3557 ic_printf(ic, "ERROR: %s: config %#0x returned " 3558 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3559 error); 3560 } 3561} 3562 3563static struct ieee80211_node * 3564lkpi_ic_node_alloc(struct ieee80211vap *vap, 3565 const uint8_t mac[IEEE80211_ADDR_LEN]) 3566{ 3567 struct ieee80211com *ic; 3568 struct lkpi_hw *lhw; 3569 struct ieee80211_node *ni; 3570 struct ieee80211_hw *hw; 3571 struct lkpi_sta *lsta; 3572 3573 ic = vap->iv_ic; 3574 lhw = ic->ic_softc; 3575 3576 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3577 if (lhw->ic_node_alloc == NULL) 3578 return (NULL); 3579 3580 ni = lhw->ic_node_alloc(vap, mac); 3581 if (ni == NULL) 3582 return (NULL); 3583 3584 hw = LHW_TO_HW(lhw); 3585 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3586 if (lsta == NULL) { 3587 if (lhw->ic_node_free != NULL) 3588 lhw->ic_node_free(ni); 3589 return (NULL); 3590 } 3591 3592 return (ni); 3593} 3594 3595static int 3596lkpi_ic_node_init(struct ieee80211_node *ni) 3597{ 3598 struct ieee80211com *ic; 3599 struct lkpi_hw *lhw; 3600 int error; 3601 3602 ic = ni->ni_ic; 3603 lhw = ic->ic_softc; 3604 3605 if (lhw->ic_node_init != NULL) { 3606 error = lhw->ic_node_init(ni); 3607 if (error != 0) 3608 return (error); 3609 } 3610 3611 /* XXX-BZ Sync other state over. */ 3612 IMPROVE(); 3613 3614 return (0); 3615} 3616 3617static void 3618lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3619{ 3620 struct ieee80211com *ic; 3621 struct lkpi_hw *lhw; 3622 3623 ic = ni->ni_ic; 3624 lhw = ic->ic_softc; 3625 3626 /* XXX-BZ remove from driver, ... */ 3627 IMPROVE(); 3628 3629 if (lhw->ic_node_cleanup != NULL) 3630 lhw->ic_node_cleanup(ni); 3631} 3632 3633static void 3634lkpi_ic_node_free(struct ieee80211_node *ni) 3635{ 3636 struct ieee80211com *ic; 3637 struct lkpi_hw *lhw; 3638 struct lkpi_sta *lsta; 3639 3640 ic = ni->ni_ic; 3641 lhw = ic->ic_softc; 3642 lsta = ni->ni_drv_data; 3643 3644 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 3645 3646 /* 3647 * Pass in the original ni just in case of error we could check that 3648 * it is the same as lsta->ni. 3649 */ 3650 lkpi_lsta_free(lsta, ni); 3651 3652 if (lhw->ic_node_free != NULL) 3653 lhw->ic_node_free(ni); 3654} 3655 3656static int 3657lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3658 const struct ieee80211_bpf_params *params __unused) 3659{ 3660 struct lkpi_sta *lsta; 3661 3662 lsta = ni->ni_drv_data; 3663 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3664 if (!lsta->added_to_drv || !lsta->txq_ready) { 3665 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3666 /* 3667 * Free the mbuf (do NOT release ni ref for the m_pkthdr.rcvif! 3668 * ieee80211_raw_output() does that in case of error). 3669 */ 3670 m_free(m); 3671 return (ENETDOWN); 3672 } 3673 3674 /* Queue the packet and enqueue the task to handle it. */ 3675 mbufq_enqueue(&lsta->txq, m); 3676 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3677 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3678 3679#ifdef LINUXKPI_DEBUG_80211 3680 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3681 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3682 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3683 mbufq_len(&lsta->txq)); 3684#endif 3685 3686 return (0); 3687} 3688 3689static void 3690lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3691{ 3692 struct ieee80211_node *ni; 3693#ifndef LKPI_80211_HW_CRYPTO 3694 struct ieee80211_frame *wh; 3695#endif 3696 struct ieee80211_key *k; 3697 struct sk_buff *skb; 3698 struct ieee80211com *ic; 3699 struct lkpi_hw *lhw; 3700 struct ieee80211_hw *hw; 3701 struct lkpi_vif *lvif; 3702 struct ieee80211_vif *vif; 3703 struct ieee80211_channel *c; 3704 struct ieee80211_tx_control control; 3705 struct ieee80211_tx_info *info; 3706 struct ieee80211_sta *sta; 3707 struct ieee80211_hdr *hdr; 3708 struct lkpi_txq *ltxq; 3709 void *buf; 3710 uint8_t ac, tid; 3711 3712 M_ASSERTPKTHDR(m); 3713#ifdef LINUXKPI_DEBUG_80211 3714 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3715 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3716#endif 3717 3718 ni = lsta->ni; 3719 k = NULL; 3720#ifndef LKPI_80211_HW_CRYPTO 3721 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3722 wh = mtod(m, struct ieee80211_frame *); 3723 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3724 /* Retrieve key for TX && do software encryption. */ 3725 k = ieee80211_crypto_encap(ni, m); 3726 if (k == NULL) { 3727 ieee80211_free_node(ni); 3728 m_freem(m); 3729 return; 3730 } 3731 } 3732#endif 3733 3734 ic = ni->ni_ic; 3735 lhw = ic->ic_softc; 3736 hw = LHW_TO_HW(lhw); 3737 c = ni->ni_chan; 3738 3739 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3740 struct lkpi_radiotap_tx_hdr *rtap; 3741 3742 rtap = &lhw->rtap_tx; 3743 rtap->wt_flags = 0; 3744 if (k != NULL) 3745 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3746 if (m->m_flags & M_FRAG) 3747 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3748 IMPROVE(); 3749 rtap->wt_rate = 0; 3750 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3751 rtap->wt_chan_freq = htole16(c->ic_freq); 3752 rtap->wt_chan_flags = htole16(c->ic_flags); 3753 } 3754 3755 ieee80211_radiotap_tx(ni->ni_vap, m); 3756 } 3757 3758 /* 3759 * net80211 should handle hw->extra_tx_headroom. 3760 * Though for as long as we are copying we don't mind. 3761 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3762 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3763 */ 3764 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3765 if (skb == NULL) { 3766 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3767 ieee80211_free_node(ni); 3768 m_freem(m); 3769 return; 3770 } 3771 skb_reserve(skb, hw->extra_tx_headroom); 3772 3773 /* XXX-BZ we need a SKB version understanding mbuf. */ 3774 /* Save the mbuf for ieee80211_tx_complete(). */ 3775 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3776 skb->m = m; 3777#if 0 3778 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3779#else 3780 buf = skb_put(skb, m->m_pkthdr.len); 3781 m_copydata(m, 0, m->m_pkthdr.len, buf); 3782#endif 3783 /* Save the ni. */ 3784 m->m_pkthdr.PH_loc.ptr = ni; 3785 3786 lvif = VAP_TO_LVIF(ni->ni_vap); 3787 vif = LVIF_TO_VIF(lvif); 3788 3789 hdr = (void *)skb->data; 3790 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3791 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3792 if (!ieee80211_is_data(hdr->frame_control)) { 3793 /* MGMT and CTRL frames go on TID 7/VO. */ 3794 skb->priority = 7; 3795 ac = IEEE80211_AC_VO; 3796 } else { 3797 /* Other non-QOS traffic goes to BE. */ 3798 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 3799 skb->priority = 0; 3800 ac = IEEE80211_AC_BE; 3801 } 3802 } else { 3803 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3804 ac = ieee80211e_up_to_ac[tid & 7]; 3805 } 3806 skb_set_queue_mapping(skb, ac); 3807 3808 info = IEEE80211_SKB_CB(skb); 3809 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3810 /* Slight delay; probably only happens on scanning so fine? */ 3811 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3812 c = ic->ic_curchan; 3813 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3814 info->hw_queue = vif->hw_queue[ac]; 3815 if (m->m_flags & M_EAPOL) 3816 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3817 info->control.vif = vif; 3818 /* XXX-BZ info->control.rates */ 3819#ifdef __notyet__ 3820#ifdef LKPI_80211_HT 3821 info->control.rts_cts_rate_idx= 3822 info->control.use_rts= /* RTS */ 3823 info->control.use_cts_prot= /* RTS/CTS*/ 3824#endif 3825#endif 3826 3827 sta = LSTA_TO_STA(lsta); 3828#ifdef LKPI_80211_HW_CRYPTO 3829 info->control.hw_key = lsta->kc; 3830#endif 3831 3832 IMPROVE(); 3833 3834 ltxq = NULL; 3835 if (!ieee80211_is_data_present(hdr->frame_control)) { 3836 if (vif->type == NL80211_IFTYPE_STATION && 3837 lsta->added_to_drv && 3838 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3839 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3840 } else if (lsta->added_to_drv && 3841 sta->txq[skb->priority] != NULL) { 3842 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3843 } 3844 if (ltxq == NULL) 3845 goto ops_tx; 3846 3847 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3848 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3849 3850 LKPI_80211_LTXQ_LOCK(ltxq); 3851 skb_queue_tail(<xq->skbq, skb); 3852#ifdef LINUXKPI_DEBUG_80211 3853 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3854 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3855 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3856 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3857 __func__, __LINE__, 3858 curthread->td_tid, (unsigned int)ticks, 3859 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3860 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3861 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3862#endif 3863 LKPI_80211_LTXQ_UNLOCK(ltxq); 3864 LKPI_80211_LHW_LOCK(lhw); 3865 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3866 LKPI_80211_LHW_UNLOCK(lhw); 3867 return; 3868 3869ops_tx: 3870#ifdef LINUXKPI_DEBUG_80211 3871 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3872 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3873 "TX ac %d prio %u qmap %u\n", 3874 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3875 skb, ac, skb->priority, skb->qmap); 3876#endif 3877 memset(&control, 0, sizeof(control)); 3878 control.sta = sta; 3879 LKPI_80211_LHW_LOCK(lhw); 3880 lkpi_80211_mo_tx(hw, &control, skb); 3881 LKPI_80211_LHW_UNLOCK(lhw); 3882} 3883 3884static void 3885lkpi_80211_txq_task(void *ctx, int pending) 3886{ 3887 struct lkpi_sta *lsta; 3888 struct mbufq mq; 3889 struct mbuf *m; 3890 bool shall_tx; 3891 3892 lsta = ctx; 3893 3894#ifdef LINUXKPI_DEBUG_80211 3895 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3896 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3897 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3898 pending, mbufq_len(&lsta->txq)); 3899#endif 3900 3901 mbufq_init(&mq, IFQ_MAXLEN); 3902 3903 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3904 /* 3905 * Do not re-check lsta->txq_ready here; we may have a pending 3906 * disassoc/deauth frame still. On the contrary if txq_ready is 3907 * false we do not have a valid sta anymore in the firmware so no 3908 * point to try to TX. 3909 * We also use txq_ready as a semaphore and will drain the txq manually 3910 * if needed on our way towards SCAN/INIT in the state machine. 3911 */ 3912 shall_tx = lsta->added_to_drv && lsta->txq_ready; 3913 if (__predict_true(shall_tx)) 3914 mbufq_concat(&mq, &lsta->txq); 3915 /* 3916 * else a state change will push the packets out manually or 3917 * lkpi_lsta_free() will drain the lsta->txq and free the mbufs. 3918 */ 3919 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3920 3921 m = mbufq_dequeue(&mq); 3922 while (m != NULL) { 3923 lkpi_80211_txq_tx_one(lsta, m); 3924 m = mbufq_dequeue(&mq); 3925 } 3926} 3927 3928static int 3929lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3930{ 3931 3932 /* XXX TODO */ 3933 IMPROVE(); 3934 3935 /* Quick and dirty cheating hack. */ 3936 struct ieee80211_node *ni; 3937 3938 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3939 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3940} 3941 3942#ifdef LKPI_80211_HT 3943static int 3944lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3945 const uint8_t *frm, const uint8_t *efrm) 3946{ 3947 struct ieee80211com *ic; 3948 struct lkpi_hw *lhw; 3949 3950 ic = ni->ni_ic; 3951 lhw = ic->ic_softc; 3952 3953 IMPROVE_HT(); 3954 3955 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 3956} 3957 3958static int 3959lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 3960{ 3961 struct ieee80211com *ic; 3962 struct lkpi_hw *lhw; 3963 3964 ic = ni->ni_ic; 3965 lhw = ic->ic_softc; 3966 3967 IMPROVE_HT(); 3968 3969 return (lhw->ic_send_action(ni, category, action, sa)); 3970} 3971 3972 3973static int 3974lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3975{ 3976 struct ieee80211com *ic; 3977 struct lkpi_hw *lhw; 3978 3979 ic = ni->ni_ic; 3980 lhw = ic->ic_softc; 3981 3982 IMPROVE_HT(); 3983 3984 return (lhw->ic_ampdu_enable(ni, tap)); 3985} 3986 3987static int 3988lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3989 int dialogtoken, int baparamset, int batimeout) 3990{ 3991 struct ieee80211com *ic; 3992 struct lkpi_hw *lhw; 3993 3994 ic = ni->ni_ic; 3995 lhw = ic->ic_softc; 3996 3997 IMPROVE_HT(); 3998 3999 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 4000} 4001 4002static int 4003lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4004 int status, int baparamset, int batimeout) 4005{ 4006 struct ieee80211com *ic; 4007 struct lkpi_hw *lhw; 4008 4009 ic = ni->ni_ic; 4010 lhw = ic->ic_softc; 4011 4012 IMPROVE_HT(); 4013 4014 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 4015} 4016 4017static void 4018lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4019{ 4020 struct ieee80211com *ic; 4021 struct lkpi_hw *lhw; 4022 4023 ic = ni->ni_ic; 4024 lhw = ic->ic_softc; 4025 4026 IMPROVE_HT(); 4027 4028 lhw->ic_addba_stop(ni, tap); 4029} 4030 4031static void 4032lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4033{ 4034 struct ieee80211com *ic; 4035 struct lkpi_hw *lhw; 4036 4037 ic = ni->ni_ic; 4038 lhw = ic->ic_softc; 4039 4040 IMPROVE_HT(); 4041 4042 lhw->ic_addba_response_timeout(ni, tap); 4043} 4044 4045static void 4046lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4047 int status) 4048{ 4049 struct ieee80211com *ic; 4050 struct lkpi_hw *lhw; 4051 4052 ic = ni->ni_ic; 4053 lhw = ic->ic_softc; 4054 4055 IMPROVE_HT(); 4056 4057 lhw->ic_bar_response(ni, tap, status); 4058} 4059 4060static int 4061lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 4062 int baparamset, int batimeout, int baseqctl) 4063{ 4064 struct ieee80211com *ic; 4065 struct lkpi_hw *lhw; 4066 struct ieee80211_hw *hw; 4067 struct ieee80211vap *vap; 4068 struct lkpi_vif *lvif; 4069 struct ieee80211_vif *vif; 4070 struct lkpi_sta *lsta; 4071 struct ieee80211_sta *sta; 4072 struct ieee80211_ampdu_params params; 4073 int error; 4074 4075 ic = ni->ni_ic; 4076 lhw = ic->ic_softc; 4077 hw = LHW_TO_HW(lhw); 4078 vap = ni->ni_vap; 4079 lvif = VAP_TO_LVIF(vap); 4080 vif = LVIF_TO_VIF(lvif); 4081 lsta = ni->ni_drv_data; 4082 sta = LSTA_TO_STA(lsta); 4083 4084 params.sta = sta; 4085 params.action = IEEE80211_AMPDU_RX_START; 4086 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 4087 if (params.buf_size == 0) 4088 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 4089 else 4090 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 4091 if (params.buf_size > hw->max_rx_aggregation_subframes) 4092 params.buf_size = hw->max_rx_aggregation_subframes; 4093 params.timeout = le16toh(batimeout); 4094 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 4095 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 4096 params.amsdu = false; 4097 4098 IMPROVE_HT("Do we need to distinguish based on SUPPORTS_REORDERING_BUFFER?"); 4099 4100 /* This may call kalloc. Make sure we can sleep. */ 4101 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4102 if (error != 0) { 4103 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4104 __func__, error, ni, rap); 4105 return (error); 4106 } 4107 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 4108 4109 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 4110 return (error); 4111} 4112 4113static void 4114lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 4115{ 4116 struct ieee80211com *ic; 4117 struct lkpi_hw *lhw; 4118 struct ieee80211_hw *hw; 4119 struct ieee80211vap *vap; 4120 struct lkpi_vif *lvif; 4121 struct ieee80211_vif *vif; 4122 struct lkpi_sta *lsta; 4123 struct ieee80211_sta *sta; 4124 struct ieee80211_ampdu_params params; 4125 int error; 4126 uint8_t tid; 4127 4128 ic = ni->ni_ic; 4129 lhw = ic->ic_softc; 4130 4131 /* 4132 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 4133 * we did not START. Some drivers pass it down to firmware which will 4134 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 4135 * ieee80211_ht_node_init() amongst others which will iterate over all 4136 * tid and call ic_ampdu_rx_stop() unconditionally. 4137 * XXX net80211 should probably be more "gentle" in these cases and 4138 * track some state itself. 4139 */ 4140 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 4141 goto net80211_only; 4142 4143 hw = LHW_TO_HW(lhw); 4144 vap = ni->ni_vap; 4145 lvif = VAP_TO_LVIF(vap); 4146 vif = LVIF_TO_VIF(lvif); 4147 lsta = ni->ni_drv_data; 4148 sta = LSTA_TO_STA(lsta); 4149 4150 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 4151 for (tid = 0; tid < WME_NUM_TID; tid++) { 4152 if (&ni->ni_rx_ampdu[tid] == rap) 4153 break; 4154 } 4155 4156 params.sta = sta; 4157 params.action = IEEE80211_AMPDU_RX_STOP; 4158 params.buf_size = 0; 4159 params.timeout = 0; 4160 params.ssn = 0; 4161 params.tid = tid; 4162 params.amsdu = false; 4163 4164 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4165 if (error != 0) 4166 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4167 __func__, error, ni, rap); 4168 4169net80211_only: 4170 lhw->ic_ampdu_rx_stop(ni, rap); 4171} 4172#endif 4173 4174static void 4175lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 4176 uint8_t *bands, int *chan_flags, enum nl80211_band band) 4177{ 4178#ifdef LKPI_80211_HT 4179 struct ieee80211_sta_ht_cap *ht_cap; 4180 4181 ht_cap = &hw->wiphy->bands[band]->ht_cap; 4182 if (!ht_cap->ht_supported) 4183 return; 4184 4185 switch (band) { 4186 case NL80211_BAND_2GHZ: 4187 setbit(bands, IEEE80211_MODE_11NG); 4188 break; 4189 case NL80211_BAND_5GHZ: 4190 setbit(bands, IEEE80211_MODE_11NA); 4191 break; 4192 default: 4193 IMPROVE("Unsupported band %d", band); 4194 return; 4195 } 4196 4197 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 4198 4199 /* 4200 * Rather than manually checking each flag and 4201 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 4202 * simply copy the 16bits. 4203 */ 4204 ic->ic_htcaps |= ht_cap->cap; 4205 4206 /* Then deal with the other flags. */ 4207 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 4208 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 4209#ifdef __notyet__ 4210 if (ieee80211_hw_check(hw, TX_AMSDU)) 4211 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 4212 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 4213 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 4214 IEEE80211_HTC_TX_AMSDU_AMPDU); 4215#endif 4216 4217 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 4218 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_OFF; 4219 4220 /* Only add HT40 channels if supported. */ 4221 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 4222 chan_flags != NULL) 4223 *chan_flags |= NET80211_CBW_FLAG_HT40; 4224#endif 4225} 4226 4227static void 4228lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 4229 int *n, struct ieee80211_channel *c) 4230{ 4231 struct lkpi_hw *lhw; 4232 struct ieee80211_hw *hw; 4233 struct linuxkpi_ieee80211_channel *channels; 4234 uint8_t bands[IEEE80211_MODE_BYTES]; 4235 int chan_flags, error, i, nchans; 4236 4237 /* Channels */ 4238 lhw = ic->ic_softc; 4239 hw = LHW_TO_HW(lhw); 4240 4241 /* NL80211_BAND_2GHZ */ 4242 nchans = 0; 4243 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 4244 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 4245 if (nchans > 0) { 4246 memset(bands, 0, sizeof(bands)); 4247 chan_flags = 0; 4248 setbit(bands, IEEE80211_MODE_11B); 4249 /* XXX-BZ unclear how to check for 11g. */ 4250 4251 IMPROVE("the bitrates may have flags?"); 4252 setbit(bands, IEEE80211_MODE_11G); 4253 4254 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4255 NL80211_BAND_2GHZ); 4256 4257 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 4258 for (i = 0; i < nchans && *n < maxchan; i++) { 4259 uint32_t nflags = 0; 4260 int cflags = chan_flags; 4261 4262 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4263 ic_printf(ic, "%s: Skipping disabled chan " 4264 "[%u/%u/%#x]\n", __func__, 4265 channels[i].hw_value, 4266 channels[i].center_freq, channels[i].flags); 4267 continue; 4268 } 4269 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4270 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4271 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4272 nflags |= IEEE80211_CHAN_DFS; 4273 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4274 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4275 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4276 cflags &= ~NET80211_CBW_FLAG_VHT80; 4277 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 4278 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4279 cflags &= ~NET80211_CBW_FLAG_HT40; 4280 4281 error = ieee80211_add_channel_cbw(c, maxchan, n, 4282 channels[i].hw_value, channels[i].center_freq, 4283 channels[i].max_power, 4284 nflags, bands, cflags); 4285 /* net80211::ENOBUFS: *n >= maxchans */ 4286 if (error != 0 && error != ENOBUFS) 4287 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4288 "returned error %d\n", 4289 __func__, channels[i].hw_value, 4290 channels[i].center_freq, channels[i].flags, 4291 nflags, chan_flags, cflags, error); 4292 if (error != 0) 4293 break; 4294 } 4295 } 4296 4297 /* NL80211_BAND_5GHZ */ 4298 nchans = 0; 4299 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 4300 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 4301 if (nchans > 0) { 4302 memset(bands, 0, sizeof(bands)); 4303 chan_flags = 0; 4304 setbit(bands, IEEE80211_MODE_11A); 4305 4306 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4307 NL80211_BAND_5GHZ); 4308 4309#ifdef LKPI_80211_VHT 4310 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 4311 4312 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 4313 ic->ic_vht_cap.vht_cap_info = 4314 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 4315 4316 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 4317 chan_flags |= NET80211_CBW_FLAG_VHT80; 4318 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 4319 ic->ic_vht_cap.vht_cap_info)) 4320 chan_flags |= NET80211_CBW_FLAG_VHT160; 4321 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 4322 ic->ic_vht_cap.vht_cap_info)) 4323 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 4324 } 4325#endif 4326 4327 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 4328 for (i = 0; i < nchans && *n < maxchan; i++) { 4329 uint32_t nflags = 0; 4330 int cflags = chan_flags; 4331 4332 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4333 ic_printf(ic, "%s: Skipping disabled chan " 4334 "[%u/%u/%#x]\n", __func__, 4335 channels[i].hw_value, 4336 channels[i].center_freq, channels[i].flags); 4337 continue; 4338 } 4339 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4340 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4341 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4342 nflags |= IEEE80211_CHAN_DFS; 4343 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4344 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4345 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4346 cflags &= ~NET80211_CBW_FLAG_VHT80; 4347 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 4348 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4349 cflags &= ~NET80211_CBW_FLAG_HT40; 4350 4351 error = ieee80211_add_channel_cbw(c, maxchan, n, 4352 channels[i].hw_value, channels[i].center_freq, 4353 channels[i].max_power, 4354 nflags, bands, cflags); 4355 /* net80211::ENOBUFS: *n >= maxchans */ 4356 if (error != 0 && error != ENOBUFS) 4357 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4358 "returned error %d\n", 4359 __func__, channels[i].hw_value, 4360 channels[i].center_freq, channels[i].flags, 4361 nflags, chan_flags, cflags, error); 4362 if (error != 0) 4363 break; 4364 } 4365 } 4366} 4367 4368static void * 4369lkpi_ieee80211_ifalloc(void) 4370{ 4371 struct ieee80211com *ic; 4372 4373 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 4374 if (ic == NULL) 4375 return (NULL); 4376 4377 /* Setting these happens later when we have device information. */ 4378 ic->ic_softc = NULL; 4379 ic->ic_name = "linuxkpi"; 4380 4381 return (ic); 4382} 4383 4384struct ieee80211_hw * 4385linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 4386{ 4387 struct ieee80211_hw *hw; 4388 struct lkpi_hw *lhw; 4389 struct wiphy *wiphy; 4390 int ac; 4391 4392 /* Get us and the driver data also allocated. */ 4393 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 4394 if (wiphy == NULL) 4395 return (NULL); 4396 4397 lhw = wiphy_priv(wiphy); 4398 lhw->ops = ops; 4399 4400 LKPI_80211_LHW_LOCK_INIT(lhw); 4401 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 4402 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 4403 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 4404 TAILQ_INIT(&lhw->lvif_head); 4405 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4406 lhw->txq_generation[ac] = 1; 4407 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 4408 } 4409 4410 /* Deferred RX path. */ 4411 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 4412 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 4413 mbufq_init(&lhw->rxq, IFQ_MAXLEN); 4414 lhw->rxq_stopped = false; 4415 4416 /* 4417 * XXX-BZ TODO make sure there is a "_null" function to all ops 4418 * not initialized. 4419 */ 4420 hw = LHW_TO_HW(lhw); 4421 hw->wiphy = wiphy; 4422 hw->conf.flags |= IEEE80211_CONF_IDLE; 4423 hw->priv = (void *)(lhw + 1); 4424 4425 /* BSD Specific. */ 4426 lhw->ic = lkpi_ieee80211_ifalloc(); 4427 if (lhw->ic == NULL) { 4428 ieee80211_free_hw(hw); 4429 return (NULL); 4430 } 4431 4432 IMPROVE(); 4433 4434 return (hw); 4435} 4436 4437void 4438linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 4439{ 4440 struct lkpi_hw *lhw; 4441 struct mbuf *m; 4442 4443 lhw = HW_TO_LHW(hw); 4444 free(lhw->ic, M_LKPI80211); 4445 lhw->ic = NULL; 4446 4447 /* 4448 * Drain the deferred RX path. 4449 */ 4450 LKPI_80211_LHW_RXQ_LOCK(lhw); 4451 lhw->rxq_stopped = true; 4452 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4453 4454 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 4455 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 4456 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 4457 4458 /* Flush mbufq (make sure to release ni refs!). */ 4459 m = mbufq_dequeue(&lhw->rxq); 4460 while (m != NULL) { 4461 struct m_tag *mtag; 4462 4463 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4464 if (mtag != NULL) { 4465 struct lkpi_80211_tag_rxni *rxni; 4466 4467 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4468 ieee80211_free_node(rxni->ni); 4469 } 4470 m_freem(m); 4471 m = mbufq_dequeue(&lhw->rxq); 4472 } 4473 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 4474 __func__, lhw, mbufq_len(&lhw->rxq))); 4475 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 4476 4477 /* Cleanup more of lhw here or in wiphy_free()? */ 4478 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 4479 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 4480 LKPI_80211_LHW_LOCK_DESTROY(lhw); 4481 sx_destroy(&lhw->lvif_sx); 4482 IMPROVE(); 4483} 4484 4485void 4486linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 4487{ 4488 struct lkpi_hw *lhw; 4489 struct ieee80211com *ic; 4490 4491 lhw = HW_TO_LHW(hw); 4492 ic = lhw->ic; 4493 4494 /* Now set a proper name before ieee80211_ifattach(). */ 4495 ic->ic_softc = lhw; 4496 ic->ic_name = name; 4497 4498 /* XXX-BZ do we also need to set wiphy name? */ 4499} 4500 4501struct ieee80211_hw * 4502linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 4503{ 4504 struct lkpi_hw *lhw; 4505 4506 lhw = wiphy_priv(wiphy); 4507 return (LHW_TO_HW(lhw)); 4508} 4509 4510static void 4511lkpi_radiotap_attach(struct lkpi_hw *lhw) 4512{ 4513 struct ieee80211com *ic; 4514 4515 ic = lhw->ic; 4516 ieee80211_radiotap_attach(ic, 4517 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 4518 LKPI_RTAP_TX_FLAGS_PRESENT, 4519 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 4520 LKPI_RTAP_RX_FLAGS_PRESENT); 4521} 4522 4523int 4524linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 4525{ 4526 struct ieee80211com *ic; 4527 struct lkpi_hw *lhw; 4528 int band, i; 4529 4530 lhw = HW_TO_LHW(hw); 4531 ic = lhw->ic; 4532 4533 /* We do it this late as wiphy->dev should be set for the name. */ 4534 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 4535 if (lhw->workq == NULL) 4536 return (-EAGAIN); 4537 4538 /* XXX-BZ figure this out how they count his... */ 4539 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 4540 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4541 hw->wiphy->perm_addr); 4542 } else if (hw->wiphy->n_addresses > 0) { 4543 /* We take the first one. */ 4544 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4545 hw->wiphy->addresses[0].addr); 4546 } else { 4547 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 4548 } 4549 4550#ifdef __not_yet__ 4551 /* See comment in lkpi_80211_txq_tx_one(). */ 4552 ic->ic_headroom = hw->extra_tx_headroom; 4553#endif 4554 4555 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 4556 ic->ic_opmode = IEEE80211_M_STA; 4557 4558 /* Set device capabilities. */ 4559 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 4560 ic->ic_caps = 4561 IEEE80211_C_STA | 4562 IEEE80211_C_MONITOR | 4563 IEEE80211_C_WPA | /* WPA/RSN */ 4564#ifdef LKPI_80211_WME 4565 IEEE80211_C_WME | 4566#endif 4567#if 0 4568 IEEE80211_C_PMGT | 4569#endif 4570 IEEE80211_C_SHSLOT | /* short slot time supported */ 4571 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 4572 ; 4573#if 0 4574 /* Scanning is a different kind of beast to re-work. */ 4575 ic->ic_caps |= IEEE80211_C_BGSCAN; 4576#endif 4577 if (lhw->ops->hw_scan) { 4578 /* 4579 * Advertise full-offload scanning. 4580 * 4581 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4582 * we essentially disable hw_scan for all drivers not setting 4583 * the flag. 4584 */ 4585 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4586 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4587 } 4588 4589 /* 4590 * The wiphy variables report bitmasks of avail antennas. 4591 * (*get_antenna) get the current bitmask sets which can be 4592 * altered by (*set_antenna) for some drivers. 4593 * XXX-BZ will the count alone do us much good long-term in net80211? 4594 */ 4595 if (hw->wiphy->available_antennas_rx || 4596 hw->wiphy->available_antennas_tx) { 4597 uint32_t rxs, txs; 4598 4599 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 4600 ic->ic_rxstream = bitcount32(rxs); 4601 ic->ic_txstream = bitcount32(txs); 4602 } 4603 } 4604 4605 ic->ic_cryptocaps = 0; 4606#ifdef LKPI_80211_HW_CRYPTO 4607 if (hw->wiphy->n_cipher_suites > 0) { 4608 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 4609 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 4610 hw->wiphy->cipher_suites[i]); 4611 } 4612#endif 4613 4614 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 4615 ic->ic_channels); 4616 4617 ieee80211_ifattach(ic); 4618 4619 ic->ic_update_mcast = lkpi_ic_update_mcast; 4620 ic->ic_update_promisc = lkpi_ic_update_promisc; 4621 ic->ic_update_chw = lkpi_ic_update_chw; 4622 ic->ic_parent = lkpi_ic_parent; 4623 ic->ic_scan_start = lkpi_ic_scan_start; 4624 ic->ic_scan_end = lkpi_ic_scan_end; 4625 ic->ic_set_channel = lkpi_ic_set_channel; 4626 ic->ic_transmit = lkpi_ic_transmit; 4627 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 4628 ic->ic_vap_create = lkpi_ic_vap_create; 4629 ic->ic_vap_delete = lkpi_ic_vap_delete; 4630 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 4631 ic->ic_wme.wme_update = lkpi_ic_wme_update; 4632 4633 lhw->ic_scan_curchan = ic->ic_scan_curchan; 4634 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 4635 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 4636 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 4637 4638 lhw->ic_node_alloc = ic->ic_node_alloc; 4639 ic->ic_node_alloc = lkpi_ic_node_alloc; 4640 lhw->ic_node_init = ic->ic_node_init; 4641 ic->ic_node_init = lkpi_ic_node_init; 4642 lhw->ic_node_cleanup = ic->ic_node_cleanup; 4643 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 4644 lhw->ic_node_free = ic->ic_node_free; 4645 ic->ic_node_free = lkpi_ic_node_free; 4646 4647#ifdef LKPI_80211_HT 4648 lhw->ic_recv_action = ic->ic_recv_action; 4649 ic->ic_recv_action = lkpi_ic_recv_action; 4650 lhw->ic_send_action = ic->ic_send_action; 4651 ic->ic_send_action = lkpi_ic_send_action; 4652 4653 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 4654 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 4655 4656 lhw->ic_addba_request = ic->ic_addba_request; 4657 ic->ic_addba_request = lkpi_ic_addba_request; 4658 lhw->ic_addba_response = ic->ic_addba_response; 4659 ic->ic_addba_response = lkpi_ic_addba_response; 4660 lhw->ic_addba_stop = ic->ic_addba_stop; 4661 ic->ic_addba_stop = lkpi_ic_addba_stop; 4662 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 4663 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 4664 4665 lhw->ic_bar_response = ic->ic_bar_response; 4666 ic->ic_bar_response = lkpi_ic_bar_response; 4667 4668 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 4669 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 4670 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 4671 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 4672#endif 4673 4674 lkpi_radiotap_attach(lhw); 4675 4676 /* 4677 * Assign the first possible channel for now; seems Realtek drivers 4678 * expect one. 4679 * Also remember the amount of bands we support and the most rates 4680 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 4681 */ 4682 lhw->supbands = lhw->max_rates = 0; 4683 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4684 struct ieee80211_supported_band *supband; 4685 struct linuxkpi_ieee80211_channel *channels; 4686 4687 supband = hw->wiphy->bands[band]; 4688 if (supband == NULL || supband->n_channels == 0) 4689 continue; 4690 4691 lhw->supbands++; 4692 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 4693 4694 /* If we have a channel, we need to keep counting supbands. */ 4695 if (hw->conf.chandef.chan != NULL) 4696 continue; 4697 4698 channels = supband->channels; 4699 for (i = 0; i < supband->n_channels; i++) { 4700 4701 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4702 continue; 4703 4704 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 4705#ifdef LKPI_80211_HT 4706 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 4707#endif 4708 NL80211_CHAN_NO_HT); 4709 break; 4710 } 4711 } 4712 4713 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 4714 4715 /* Make sure we do not support more than net80211 is willing to take. */ 4716 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 4717 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 4718 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 4719 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 4720 } 4721 4722 /* 4723 * The maximum supported bitrates on any band + size for 4724 * DSSS Parameter Set give our per-band IE size. 4725 * SSID is the responsibility of the driver and goes on the side. 4726 * The user specified bits coming from the vap go into the 4727 * "common ies" fields. 4728 */ 4729 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 4730 if (lhw->max_rates > IEEE80211_RATE_SIZE) 4731 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 4732 4733 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 4734 /* 4735 * net80211 does not seem to support the DSSS Parameter Set but 4736 * some of the drivers insert it so calculate the extra fixed 4737 * space in. 4738 */ 4739 lhw->scan_ie_len += 2 + 1; 4740 } 4741 4742#if defined(LKPI_80211_HT) 4743 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 4744 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 4745#endif 4746#if defined(LKPI_80211_VHT) 4747 if ((ic->ic_flags_ext & IEEE80211_FEXT_VHT) != 0) 4748 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 4749#endif 4750 4751 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 4752 if (hw->wiphy->max_scan_ie_len > 0) { 4753 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 4754 goto err; 4755 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 4756 } 4757 4758 if (bootverbose) 4759 ieee80211_announce(ic); 4760 4761 return (0); 4762err: 4763 IMPROVE("TODO FIXME CLEANUP"); 4764 return (-EAGAIN); 4765} 4766 4767void 4768linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 4769{ 4770 struct lkpi_hw *lhw; 4771 struct ieee80211com *ic; 4772 4773 lhw = HW_TO_LHW(hw); 4774 ic = lhw->ic; 4775 ieee80211_ifdetach(ic); 4776} 4777 4778void 4779linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 4780 enum ieee80211_iface_iter flags, 4781 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 4782 void *arg) 4783{ 4784 struct lkpi_hw *lhw; 4785 struct lkpi_vif *lvif; 4786 struct ieee80211_vif *vif; 4787 bool active, atomic, nin_drv; 4788 4789 lhw = HW_TO_LHW(hw); 4790 4791 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 4792 IEEE80211_IFACE_ITER_RESUME_ALL| 4793 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 4794 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 4795 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 4796 __func__, flags); 4797 } 4798 4799 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 4800 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 4801 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 4802 4803 if (atomic) 4804 LKPI_80211_LHW_LVIF_LOCK(lhw); 4805 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4806 struct ieee80211vap *vap; 4807 4808 vif = LVIF_TO_VIF(lvif); 4809 4810 /* 4811 * If we want "active" interfaces, we need to distinguish on 4812 * whether the driver knows about them or not to be able to 4813 * handle the "resume" case correctly. Skip the ones the 4814 * driver does not know about. 4815 */ 4816 if (active && !lvif->added_to_drv && 4817 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 4818 continue; 4819 4820 /* 4821 * If we shall skip interfaces not added to the driver do so 4822 * if we haven't yet. 4823 */ 4824 if (nin_drv && !lvif->added_to_drv) 4825 continue; 4826 4827 /* 4828 * Run the iterator function if we are either not asking 4829 * asking for active only or if the VAP is "running". 4830 */ 4831 /* XXX-BZ probably should have state in the lvif as well. */ 4832 vap = LVIF_TO_VAP(lvif); 4833 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 4834 iterfunc(arg, vif->addr, vif); 4835 } 4836 if (atomic) 4837 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4838} 4839 4840void 4841linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 4842 struct ieee80211_vif *vif, 4843 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 4844 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 4845 void *arg) 4846{ 4847 4848 UNIMPLEMENTED; 4849} 4850 4851void 4852linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 4853 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 4854 void *), 4855 void *arg) 4856{ 4857 struct lkpi_hw *lhw; 4858 struct lkpi_vif *lvif; 4859 struct ieee80211_vif *vif; 4860 struct lkpi_chanctx *lchanctx; 4861 4862 KASSERT(hw != NULL && iterfunc != NULL, 4863 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4864 4865 lhw = HW_TO_LHW(hw); 4866 4867 IMPROVE("lchanctx should be its own list somewhere"); 4868 4869 LKPI_80211_LHW_LVIF_LOCK(lhw); 4870 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4871 4872 vif = LVIF_TO_VIF(lvif); 4873 if (vif->chanctx_conf == NULL) 4874 continue; 4875 4876 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 4877 if (!lchanctx->added_to_drv) 4878 continue; 4879 4880 iterfunc(hw, &lchanctx->chanctx_conf, arg); 4881 } 4882 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4883} 4884 4885void 4886linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4887 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4888{ 4889 struct lkpi_hw *lhw; 4890 struct lkpi_vif *lvif; 4891 struct lkpi_sta *lsta; 4892 struct ieee80211_sta *sta; 4893 4894 KASSERT(hw != NULL && iterfunc != NULL, 4895 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4896 4897 lhw = HW_TO_LHW(hw); 4898 4899 LKPI_80211_LHW_LVIF_LOCK(lhw); 4900 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4901 4902 LKPI_80211_LVIF_LOCK(lvif); 4903 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4904 if (!lsta->added_to_drv) 4905 continue; 4906 sta = LSTA_TO_STA(lsta); 4907 iterfunc(arg, sta); 4908 } 4909 LKPI_80211_LVIF_UNLOCK(lvif); 4910 } 4911 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4912} 4913 4914struct linuxkpi_ieee80211_regdomain * 4915lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4916{ 4917 struct linuxkpi_ieee80211_regdomain *regd; 4918 4919 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4920 GFP_KERNEL); 4921 return (regd); 4922} 4923 4924int 4925linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4926 struct linuxkpi_ieee80211_regdomain *regd) 4927{ 4928 struct lkpi_hw *lhw; 4929 struct ieee80211com *ic; 4930 struct ieee80211_regdomain *rd; 4931 4932 lhw = wiphy_priv(wiphy); 4933 ic = lhw->ic; 4934 4935 rd = &ic->ic_regdomain; 4936 if (rd->isocc[0] == '\0') { 4937 rd->isocc[0] = regd->alpha2[0]; 4938 rd->isocc[1] = regd->alpha2[1]; 4939 } 4940 4941 TODO(); 4942 /* XXX-BZ finish the rest. */ 4943 4944 return (0); 4945} 4946 4947void 4948linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4949 struct cfg80211_scan_info *info) 4950{ 4951 struct lkpi_hw *lhw; 4952 struct ieee80211com *ic; 4953 struct ieee80211_scan_state *ss; 4954 4955 lhw = wiphy_priv(hw->wiphy); 4956 ic = lhw->ic; 4957 ss = ic->ic_scan; 4958 4959 ieee80211_scan_done(ss->ss_vap); 4960 4961 LKPI_80211_LHW_SCAN_LOCK(lhw); 4962 free(lhw->hw_req, M_LKPI80211); 4963 lhw->hw_req = NULL; 4964 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4965 wakeup(lhw); 4966 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4967 4968 return; 4969} 4970 4971static void 4972lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 4973{ 4974 struct ieee80211_node *ni; 4975 struct m_tag *mtag; 4976 int ok; 4977 4978 ni = NULL; 4979 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4980 if (mtag != NULL) { 4981 struct lkpi_80211_tag_rxni *rxni; 4982 4983 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4984 ni = rxni->ni; 4985 } 4986 4987 if (ni != NULL) { 4988 ok = ieee80211_input_mimo(ni, m); 4989 ieee80211_free_node(ni); /* Release the reference. */ 4990 if (ok < 0) 4991 m_freem(m); 4992 } else { 4993 ok = ieee80211_input_mimo_all(lhw->ic, m); 4994 /* mbuf got consumed. */ 4995 } 4996 4997#ifdef LINUXKPI_DEBUG_80211 4998 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4999 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 5000#endif 5001} 5002 5003static void 5004lkpi_80211_lhw_rxq_task(void *ctx, int pending) 5005{ 5006 struct lkpi_hw *lhw; 5007 struct mbufq mq; 5008 struct mbuf *m; 5009 5010 lhw = ctx; 5011 5012#ifdef LINUXKPI_DEBUG_80211 5013 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5014 printf("%s:%d lhw %p pending %d mbuf_qlen %d\n", 5015 __func__, __LINE__, lhw, pending, mbufq_len(&lhw->rxq)); 5016#endif 5017 5018 mbufq_init(&mq, IFQ_MAXLEN); 5019 5020 LKPI_80211_LHW_RXQ_LOCK(lhw); 5021 mbufq_concat(&mq, &lhw->rxq); 5022 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5023 5024 m = mbufq_dequeue(&mq); 5025 while (m != NULL) { 5026 lkpi_80211_lhw_rxq_rx_one(lhw, m); 5027 m = mbufq_dequeue(&mq); 5028 } 5029} 5030 5031/* For %list see comment towards the end of the function. */ 5032void 5033linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 5034 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 5035 struct list_head *list __unused) 5036{ 5037 struct lkpi_hw *lhw; 5038 struct ieee80211com *ic; 5039 struct mbuf *m; 5040 struct skb_shared_info *shinfo; 5041 struct ieee80211_rx_status *rx_status; 5042 struct ieee80211_rx_stats rx_stats; 5043 struct ieee80211_node *ni; 5044 struct ieee80211vap *vap; 5045 struct ieee80211_hdr *hdr; 5046 struct lkpi_sta *lsta; 5047 int i, offset, ok; 5048 int8_t rssi; 5049 bool is_beacon; 5050 5051 if (skb->len < 2) { 5052 /* Need 80211 stats here. */ 5053 IMPROVE(); 5054 goto err; 5055 } 5056 5057 /* 5058 * For now do the data copy; we can later improve things. Might even 5059 * have an mbuf backing the skb data then? 5060 */ 5061 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 5062 if (m == NULL) 5063 goto err; 5064 m_copyback(m, 0, skb->tail - skb->data, skb->data); 5065 5066 shinfo = skb_shinfo(skb); 5067 offset = m->m_len; 5068 for (i = 0; i < shinfo->nr_frags; i++) { 5069 m_copyback(m, offset, shinfo->frags[i].size, 5070 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 5071 shinfo->frags[i].offset); 5072 offset += shinfo->frags[i].size; 5073 } 5074 5075 rx_status = IEEE80211_SKB_RXCB(skb); 5076 5077 hdr = (void *)skb->data; 5078 is_beacon = ieee80211_is_beacon(hdr->frame_control); 5079 5080#ifdef LINUXKPI_DEBUG_80211 5081 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 5082 goto no_trace_beacons; 5083 5084 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5085 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 5086 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 5087 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 5088 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 5089 shinfo, shinfo->nr_frags, 5090 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 5091 5092 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 5093 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 5094 5095 /* Implement a dump_rxcb() !!! */ 5096 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5097 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 5098 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 5099 __func__, 5100 (uintmax_t)rx_status->boottime_ns, 5101 (uintmax_t)rx_status->mactime, 5102 rx_status->device_timestamp, 5103 rx_status->flag, 5104 rx_status->freq, 5105 rx_status->bw, 5106 rx_status->encoding, 5107 rx_status->ampdu_reference, 5108 rx_status->band, 5109 rx_status->chains, 5110 rx_status->chain_signal[0], 5111 rx_status->chain_signal[1], 5112 rx_status->chain_signal[2], 5113 rx_status->chain_signal[3], 5114 rx_status->signal, 5115 rx_status->enc_flags, 5116 rx_status->he_dcm, 5117 rx_status->he_gi, 5118 rx_status->he_ru, 5119 rx_status->zero_length_psdu_type, 5120 rx_status->nss, 5121 rx_status->rate_idx); 5122no_trace_beacons: 5123#endif 5124 5125 memset(&rx_stats, 0, sizeof(rx_stats)); 5126 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 5127 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 5128 rx_stats.c_nf = -96; 5129 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 5130 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 5131 rssi = rx_status->signal; 5132 else 5133 rssi = rx_stats.c_nf; 5134 /* 5135 * net80211 signal strength data are in .5 dBm units relative to 5136 * the current noise floor (see comment in ieee80211_node.h). 5137 */ 5138 rssi -= rx_stats.c_nf; 5139 rx_stats.c_rssi = rssi * 2; 5140 rx_stats.r_flags |= IEEE80211_R_BAND; 5141 rx_stats.c_band = 5142 lkpi_nl80211_band_to_net80211_band(rx_status->band); 5143 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 5144 rx_stats.c_freq = rx_status->freq; 5145 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 5146 5147 /* XXX (*sta_statistics)() to get to some of that? */ 5148 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 5149 5150 lhw = HW_TO_LHW(hw); 5151 ic = lhw->ic; 5152 5153 ok = ieee80211_add_rx_params(m, &rx_stats); 5154 if (ok == 0) { 5155 m_freem(m); 5156 counter_u64_add(ic->ic_ierrors, 1); 5157 goto err; 5158 } 5159 5160 lsta = NULL; 5161 if (sta != NULL) { 5162 lsta = STA_TO_LSTA(sta); 5163 ni = ieee80211_ref_node(lsta->ni); 5164 } else { 5165 struct ieee80211_frame_min *wh; 5166 5167 wh = mtod(m, struct ieee80211_frame_min *); 5168 ni = ieee80211_find_rxnode(ic, wh); 5169 if (ni != NULL) 5170 lsta = ni->ni_drv_data; 5171 } 5172 5173 if (ni != NULL) 5174 vap = ni->ni_vap; 5175 else 5176 /* 5177 * XXX-BZ can we improve this by looking at the frame hdr 5178 * or other meta-data passed up? 5179 */ 5180 vap = TAILQ_FIRST(&ic->ic_vaps); 5181 5182#ifdef LINUXKPI_DEBUG_80211 5183 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5184 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 5185 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 5186 ni, vap, is_beacon ? " beacon" : ""); 5187#endif 5188 5189 if (ni != NULL && vap != NULL && is_beacon && 5190 rx_status->device_timestamp > 0 && 5191 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 5192 struct lkpi_vif *lvif; 5193 struct ieee80211_vif *vif; 5194 struct ieee80211_frame *wh; 5195 5196 wh = mtod(m, struct ieee80211_frame *); 5197 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 5198 goto skip_device_ts; 5199 5200 lvif = VAP_TO_LVIF(vap); 5201 vif = LVIF_TO_VIF(lvif); 5202 5203 IMPROVE("TIMING_BEACON_ONLY?"); 5204 /* mac80211 specific (not net80211) so keep it here. */ 5205 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 5206 /* 5207 * net80211 should take care of the other information (sync_tsf, 5208 * sync_dtim_count) as otherwise we need to parse the beacon. 5209 */ 5210skip_device_ts: 5211 ; 5212 } 5213 5214 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 5215 ieee80211_radiotap_active_vap(vap)) { 5216 struct lkpi_radiotap_rx_hdr *rtap; 5217 5218 rtap = &lhw->rtap_rx; 5219 rtap->wr_tsft = rx_status->device_timestamp; 5220 rtap->wr_flags = 0; 5221 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 5222 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 5223 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 5224 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 5225#if 0 /* .. or it does not given we strip it below. */ 5226 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5227 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 5228#endif 5229 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 5230 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 5231 rtap->wr_rate = 0; 5232 IMPROVE(); 5233 /* XXX TODO status->encoding / rate_index / bw */ 5234 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 5235 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 5236 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 5237 rtap->wr_dbm_antsignal = rssi; 5238 rtap->wr_dbm_antnoise = rx_stats.c_nf; 5239 } 5240 5241 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5242 m_adj(m, -IEEE80211_CRC_LEN); 5243 5244#if 0 5245 if (list != NULL) { 5246 /* 5247 * Normally this would be queued up and delivered by 5248 * netif_receive_skb_list(), napi_gro_receive(), or the like. 5249 * See mt76::mac80211.c as only current possible consumer. 5250 */ 5251 IMPROVE("we simply pass the packet to net80211 to deal with."); 5252 } 5253#endif 5254 5255 /* 5256 * Attach meta-information to the mbuf for the deferred RX path. 5257 * Currently this is best-effort. Should we need to be hard, 5258 * drop the frame and goto err; 5259 */ 5260 if (ni != NULL) { 5261 struct m_tag *mtag; 5262 struct lkpi_80211_tag_rxni *rxni; 5263 5264 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 5265 sizeof(*rxni), IEEE80211_M_NOWAIT); 5266 if (mtag != NULL) { 5267 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 5268 rxni->ni = ni; /* We hold a reference. */ 5269 m_tag_prepend(m, mtag); 5270 } 5271 } 5272 5273 LKPI_80211_LHW_RXQ_LOCK(lhw); 5274 if (lhw->rxq_stopped) { 5275 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5276 m_freem(m); 5277 goto err; 5278 } 5279 5280 mbufq_enqueue(&lhw->rxq, m); 5281 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 5282 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5283 5284 IMPROVE(); 5285 5286err: 5287 /* The skb is ours so we can free it :-) */ 5288 kfree_skb(skb); 5289} 5290 5291uint8_t 5292linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 5293{ 5294 const struct ieee80211_frame *wh; 5295 uint8_t tid; 5296 5297 /* Linux seems to assume this is a QOS-Data-Frame */ 5298 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 5299 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 5300 hdr->frame_control)); 5301 5302 wh = (const struct ieee80211_frame *)hdr; 5303 tid = ieee80211_gettid(wh); 5304 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 5305 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 5306 5307 return (tid); 5308} 5309 5310struct wiphy * 5311linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 5312{ 5313 struct lkpi_wiphy *lwiphy; 5314 5315 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 5316 if (lwiphy == NULL) 5317 return (NULL); 5318 lwiphy->ops = ops; 5319 5320 /* XXX TODO */ 5321 return (LWIPHY_TO_WIPHY(lwiphy)); 5322} 5323 5324void 5325linuxkpi_wiphy_free(struct wiphy *wiphy) 5326{ 5327 struct lkpi_wiphy *lwiphy; 5328 5329 if (wiphy == NULL) 5330 return; 5331 5332 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5333 kfree(lwiphy); 5334} 5335 5336uint32_t 5337linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 5338 enum nl80211_band band) 5339{ 5340 5341 switch (band) { 5342 case NL80211_BAND_2GHZ: 5343 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 5344 break; 5345 case NL80211_BAND_5GHZ: 5346 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 5347 break; 5348 default: 5349 /* XXX abort, retry, error, panic? */ 5350 break; 5351 } 5352 5353 return (0); 5354} 5355 5356uint32_t 5357linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 5358{ 5359 5360 return (ieee80211_mhz2ieee(freq, 0)); 5361} 5362 5363#if 0 5364static struct lkpi_sta * 5365lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 5366{ 5367 struct lkpi_sta *lsta, *temp; 5368 5369 LKPI_80211_LVIF_LOCK(lvif); 5370 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5371 if (lsta->ni == ni) { 5372 LKPI_80211_LVIF_UNLOCK(lvif); 5373 return (lsta); 5374 } 5375 } 5376 LKPI_80211_LVIF_UNLOCK(lvif); 5377 5378 return (NULL); 5379} 5380#endif 5381 5382struct ieee80211_sta * 5383linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 5384{ 5385 struct lkpi_vif *lvif; 5386 struct lkpi_sta *lsta, *temp; 5387 struct ieee80211_sta *sta; 5388 5389 lvif = VIF_TO_LVIF(vif); 5390 5391 LKPI_80211_LVIF_LOCK(lvif); 5392 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5393 sta = LSTA_TO_STA(lsta); 5394 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 5395 LKPI_80211_LVIF_UNLOCK(lvif); 5396 return (sta); 5397 } 5398 } 5399 LKPI_80211_LVIF_UNLOCK(lvif); 5400 return (NULL); 5401} 5402 5403struct ieee80211_sta * 5404linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 5405 const uint8_t *addr, const uint8_t *ourvifaddr) 5406{ 5407 struct lkpi_hw *lhw; 5408 struct lkpi_vif *lvif; 5409 struct lkpi_sta *lsta; 5410 struct ieee80211_vif *vif; 5411 struct ieee80211_sta *sta; 5412 5413 lhw = wiphy_priv(hw->wiphy); 5414 sta = NULL; 5415 5416 LKPI_80211_LHW_LVIF_LOCK(lhw); 5417 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5418 5419 /* XXX-BZ check our address from the vif. */ 5420 5421 vif = LVIF_TO_VIF(lvif); 5422 if (ourvifaddr != NULL && 5423 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 5424 continue; 5425 sta = linuxkpi_ieee80211_find_sta(vif, addr); 5426 if (sta != NULL) 5427 break; 5428 } 5429 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5430 5431 if (sta != NULL) { 5432 lsta = STA_TO_LSTA(sta); 5433 if (!lsta->added_to_drv) 5434 return (NULL); 5435 } 5436 5437 return (sta); 5438} 5439 5440struct sk_buff * 5441linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 5442 struct ieee80211_txq *txq) 5443{ 5444 struct lkpi_txq *ltxq; 5445 struct lkpi_vif *lvif; 5446 struct sk_buff *skb; 5447 5448 skb = NULL; 5449 ltxq = TXQ_TO_LTXQ(txq); 5450 ltxq->seen_dequeue = true; 5451 5452 if (ltxq->stopped) 5453 goto stopped; 5454 5455 lvif = VIF_TO_LVIF(ltxq->txq.vif); 5456 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 5457 ltxq->stopped = true; 5458 goto stopped; 5459 } 5460 5461 IMPROVE("hw(TX_FRAG_LIST)"); 5462 5463 LKPI_80211_LTXQ_LOCK(ltxq); 5464 skb = skb_dequeue(<xq->skbq); 5465 LKPI_80211_LTXQ_UNLOCK(ltxq); 5466 5467stopped: 5468 return (skb); 5469} 5470 5471void 5472linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 5473 unsigned long *frame_cnt, unsigned long *byte_cnt) 5474{ 5475 struct lkpi_txq *ltxq; 5476 struct sk_buff *skb; 5477 unsigned long fc, bc; 5478 5479 ltxq = TXQ_TO_LTXQ(txq); 5480 5481 fc = bc = 0; 5482 LKPI_80211_LTXQ_LOCK(ltxq); 5483 skb_queue_walk(<xq->skbq, skb) { 5484 fc++; 5485 bc += skb->len; 5486 } 5487 LKPI_80211_LTXQ_UNLOCK(ltxq); 5488 if (frame_cnt) 5489 *frame_cnt = fc; 5490 if (byte_cnt) 5491 *byte_cnt = bc; 5492 5493 /* Validate that this is doing the correct thing. */ 5494 /* Should we keep track on en/dequeue? */ 5495 IMPROVE(); 5496} 5497 5498/* 5499 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 5500 * The latter tries to derive the success status from the info flags 5501 * passed back from the driver. rawx_mit() saves the ni on the m and the 5502 * m on the skb for us to be able to give feedback to net80211. 5503 */ 5504static void 5505_lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5506 int status) 5507{ 5508 struct ieee80211_node *ni; 5509 struct mbuf *m; 5510 5511 m = skb->m; 5512 skb->m = NULL; 5513 5514 if (m != NULL) { 5515 ni = m->m_pkthdr.PH_loc.ptr; 5516 /* Status: 0 is ok, != 0 is error. */ 5517 ieee80211_tx_complete(ni, m, status); 5518 /* ni & mbuf were consumed. */ 5519 } 5520} 5521 5522void 5523linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5524 int status) 5525{ 5526 5527 _lkpi_ieee80211_free_txskb(hw, skb, status); 5528 kfree_skb(skb); 5529} 5530 5531void 5532linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 5533 struct ieee80211_tx_status *txstat) 5534{ 5535 struct sk_buff *skb; 5536 struct ieee80211_tx_info *info; 5537 struct ieee80211_ratectl_tx_status txs; 5538 struct ieee80211_node *ni; 5539 int status; 5540 5541 skb = txstat->skb; 5542 if (skb->m != NULL) { 5543 struct mbuf *m; 5544 5545 m = skb->m; 5546 ni = m->m_pkthdr.PH_loc.ptr; 5547 memset(&txs, 0, sizeof(txs)); 5548 } else { 5549 ni = NULL; 5550 } 5551 5552 info = txstat->info; 5553 if (info->flags & IEEE80211_TX_STAT_ACK) { 5554 status = 0; /* No error. */ 5555 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 5556 } else { 5557 status = 1; 5558 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 5559 } 5560 5561 if (ni != NULL) { 5562 int ridx __unused; 5563#ifdef LINUXKPI_DEBUG_80211 5564 int old_rate; 5565 5566 old_rate = ni->ni_vap->iv_bss->ni_txrate; 5567#endif 5568 txs.pktlen = skb->len; 5569 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 5570 if (info->status.rates[0].count > 1) { 5571 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 5572 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 5573 } 5574#if 0 /* Unused in net80211 currently. */ 5575 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 5576 txs.final_rate = info->status.rates[0].idx; 5577 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 5578#endif 5579 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 5580 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 5581 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 5582 } 5583 5584 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 5585 ieee80211_ratectl_tx_complete(ni, &txs); 5586 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 5587 5588#ifdef LINUXKPI_DEBUG_80211 5589 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 5590 printf("TX-RATE: %s: old %d new %d ridx %d, " 5591 "long_retries %d\n", __func__, 5592 old_rate, ni->ni_vap->iv_bss->ni_txrate, 5593 ridx, txs.long_retries); 5594 } 5595#endif 5596 } 5597 5598#ifdef LINUXKPI_DEBUG_80211 5599 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5600 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 5601 "band %u hw_queue %u tx_time_est %d : " 5602 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 5603 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 5604 "tx_time %u flags %#x " 5605 "status_driver_data [ %p %p ]\n", 5606 __func__, hw, skb, status, info->flags, 5607 info->band, info->hw_queue, info->tx_time_est, 5608 info->status.rates[0].idx, info->status.rates[0].count, 5609 info->status.rates[0].flags, 5610 info->status.rates[1].idx, info->status.rates[1].count, 5611 info->status.rates[1].flags, 5612 info->status.rates[2].idx, info->status.rates[2].count, 5613 info->status.rates[2].flags, 5614 info->status.rates[3].idx, info->status.rates[3].count, 5615 info->status.rates[3].flags, 5616 info->status.ack_signal, info->status.ampdu_ack_len, 5617 info->status.ampdu_len, info->status.antenna, 5618 info->status.tx_time, info->status.flags, 5619 info->status.status_driver_data[0], 5620 info->status.status_driver_data[1]); 5621#endif 5622 5623 if (txstat->free_list) { 5624 _lkpi_ieee80211_free_txskb(hw, skb, status); 5625 list_add_tail(&skb->list, txstat->free_list); 5626 } else { 5627 linuxkpi_ieee80211_free_txskb(hw, skb, status); 5628 } 5629} 5630 5631void 5632linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 5633{ 5634 struct ieee80211_tx_status status; 5635 5636 memset(&status, 0, sizeof(status)); 5637 status.info = IEEE80211_SKB_CB(skb); 5638 status.skb = skb; 5639 /* sta, n_rates, rates, free_list? */ 5640 5641 ieee80211_tx_status_ext(hw, &status); 5642} 5643 5644/* 5645 * This is an internal bandaid for the moment for the way we glue 5646 * skbs and mbufs together for TX. Once we have skbs backed by 5647 * mbufs this should go away. 5648 * This is a public function but kept on the private KPI (lkpi_) 5649 * and is not exposed by a header file. 5650 */ 5651static void 5652lkpi_ieee80211_free_skb_mbuf(void *p) 5653{ 5654 struct ieee80211_node *ni; 5655 struct mbuf *m; 5656 5657 if (p == NULL) 5658 return; 5659 5660 m = (struct mbuf *)p; 5661 M_ASSERTPKTHDR(m); 5662 5663 ni = m->m_pkthdr.PH_loc.ptr; 5664 m->m_pkthdr.PH_loc.ptr = NULL; 5665 if (ni != NULL) 5666 ieee80211_free_node(ni); 5667 m_freem(m); 5668} 5669 5670void 5671linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 5672 struct delayed_work *w, int delay) 5673{ 5674 struct lkpi_hw *lhw; 5675 5676 /* Need to make sure hw is in a stable (non-suspended) state. */ 5677 IMPROVE(); 5678 5679 lhw = HW_TO_LHW(hw); 5680 queue_delayed_work(lhw->workq, w, delay); 5681} 5682 5683void 5684linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 5685 struct work_struct *w) 5686{ 5687 struct lkpi_hw *lhw; 5688 5689 /* Need to make sure hw is in a stable (non-suspended) state. */ 5690 IMPROVE(); 5691 5692 lhw = HW_TO_LHW(hw); 5693 queue_work(lhw->workq, w); 5694} 5695 5696struct sk_buff * 5697linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 5698 uint8_t *ssid, size_t ssid_len, size_t tailroom) 5699{ 5700 struct sk_buff *skb; 5701 struct ieee80211_frame *wh; 5702 uint8_t *p; 5703 size_t len; 5704 5705 len = sizeof(*wh); 5706 len += 2 + ssid_len; 5707 5708 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 5709 if (skb == NULL) 5710 return (NULL); 5711 5712 skb_reserve(skb, hw->extra_tx_headroom); 5713 5714 wh = skb_put_zero(skb, sizeof(*wh)); 5715 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 5716 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 5717 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 5718 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 5719 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 5720 5721 p = skb_put(skb, 2 + ssid_len); 5722 *p++ = IEEE80211_ELEMID_SSID; 5723 *p++ = ssid_len; 5724 if (ssid_len > 0) 5725 memcpy(p, ssid, ssid_len); 5726 5727 return (skb); 5728} 5729 5730struct sk_buff * 5731linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 5732 struct ieee80211_vif *vif) 5733{ 5734 struct lkpi_vif *lvif; 5735 struct ieee80211vap *vap; 5736 struct sk_buff *skb; 5737 struct ieee80211_frame_pspoll *psp; 5738 uint16_t v; 5739 5740 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 5741 if (skb == NULL) 5742 return (NULL); 5743 5744 skb_reserve(skb, hw->extra_tx_headroom); 5745 5746 lvif = VIF_TO_LVIF(vif); 5747 vap = LVIF_TO_VAP(lvif); 5748 5749 psp = skb_put_zero(skb, sizeof(*psp)); 5750 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 5751 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 5752 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 5753 memcpy(&psp->i_aid, &v, sizeof(v)); 5754 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 5755 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 5756 5757 return (skb); 5758} 5759 5760struct sk_buff * 5761linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 5762 struct ieee80211_vif *vif, int linkid, bool qos) 5763{ 5764 struct lkpi_vif *lvif; 5765 struct ieee80211vap *vap; 5766 struct sk_buff *skb; 5767 struct ieee80211_frame *nullf; 5768 5769 IMPROVE("linkid"); 5770 5771 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 5772 if (skb == NULL) 5773 return (NULL); 5774 5775 skb_reserve(skb, hw->extra_tx_headroom); 5776 5777 lvif = VIF_TO_LVIF(vif); 5778 vap = LVIF_TO_VAP(lvif); 5779 5780 nullf = skb_put_zero(skb, sizeof(*nullf)); 5781 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 5782 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 5783 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 5784 5785 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 5786 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 5787 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 5788 5789 return (skb); 5790} 5791 5792struct wireless_dev * 5793linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 5794{ 5795 struct lkpi_vif *lvif; 5796 5797 lvif = VIF_TO_LVIF(vif); 5798 return (&lvif->wdev); 5799} 5800 5801void 5802linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 5803{ 5804 struct lkpi_vif *lvif; 5805 struct ieee80211vap *vap; 5806 enum ieee80211_state nstate; 5807 int arg; 5808 5809 lvif = VIF_TO_LVIF(vif); 5810 vap = LVIF_TO_VAP(lvif); 5811 5812 /* 5813 * Go to init; otherwise we need to elaborately check state and 5814 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 5815 * Let the statemachine handle all neccessary changes. 5816 */ 5817 nstate = IEEE80211_S_INIT; 5818 arg = 0; /* Not a valid reason. */ 5819 5820 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5821 vif, vap, ieee80211_state_name[vap->iv_state]); 5822 ieee80211_new_state(vap, nstate, arg); 5823} 5824 5825void 5826linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 5827{ 5828 struct lkpi_vif *lvif; 5829 struct ieee80211vap *vap; 5830 5831 lvif = VIF_TO_LVIF(vif); 5832 vap = LVIF_TO_VAP(lvif); 5833 5834 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5835 vif, vap, ieee80211_state_name[vap->iv_state]); 5836 ieee80211_beacon_miss(vap->iv_ic); 5837} 5838 5839/* -------------------------------------------------------------------------- */ 5840 5841void 5842linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 5843{ 5844 struct lkpi_hw *lhw; 5845 struct lkpi_vif *lvif; 5846 struct ieee80211_vif *vif; 5847 int ac_count, ac; 5848 5849 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5850 __func__, qnum, hw->queues, hw)); 5851 5852 lhw = wiphy_priv(hw->wiphy); 5853 5854 /* See lkpi_ic_vap_create(). */ 5855 if (hw->queues >= IEEE80211_NUM_ACS) 5856 ac_count = IEEE80211_NUM_ACS; 5857 else 5858 ac_count = 1; 5859 5860 LKPI_80211_LHW_LVIF_LOCK(lhw); 5861 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5862 5863 vif = LVIF_TO_VIF(lvif); 5864 for (ac = 0; ac < ac_count; ac++) { 5865 IMPROVE_TXQ("LOCKING"); 5866 if (qnum == vif->hw_queue[ac]) { 5867#ifdef LINUXKPI_DEBUG_80211 5868 /* 5869 * For now log this to better understand 5870 * how this is supposed to work. 5871 */ 5872 if (lvif->hw_queue_stopped[ac] && 5873 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5874 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5875 "lvif %p vif %p ac %d qnum %d already " 5876 "stopped\n", __func__, __LINE__, 5877 lhw, hw, lvif, vif, ac, qnum); 5878#endif 5879 lvif->hw_queue_stopped[ac] = true; 5880 } 5881 } 5882 } 5883 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5884} 5885 5886void 5887linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 5888{ 5889 int i; 5890 5891 IMPROVE_TXQ("Locking; do we need further info?"); 5892 for (i = 0; i < hw->queues; i++) 5893 linuxkpi_ieee80211_stop_queue(hw, i); 5894} 5895 5896 5897static void 5898lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 5899{ 5900 struct lkpi_hw *lhw; 5901 struct lkpi_vif *lvif; 5902 struct lkpi_sta *lsta; 5903 int ac_count, ac, tid; 5904 5905 /* See lkpi_ic_vap_create(). */ 5906 if (hw->queues >= IEEE80211_NUM_ACS) 5907 ac_count = IEEE80211_NUM_ACS; 5908 else 5909 ac_count = 1; 5910 5911 lhw = wiphy_priv(hw->wiphy); 5912 5913 IMPROVE_TXQ("Locking"); 5914 LKPI_80211_LHW_LVIF_LOCK(lhw); 5915 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5916 struct ieee80211_vif *vif; 5917 5918 vif = LVIF_TO_VIF(lvif); 5919 for (ac = 0; ac < ac_count; ac++) { 5920 5921 if (hwq == vif->hw_queue[ac]) { 5922 5923 /* XXX-BZ what about software scan? */ 5924 5925#ifdef LINUXKPI_DEBUG_80211 5926 /* 5927 * For now log this to better understand 5928 * how this is supposed to work. 5929 */ 5930 if (!lvif->hw_queue_stopped[ac] && 5931 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5932 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5933 "lvif %p vif %p ac %d hw_q not stopped\n", 5934 __func__, __LINE__, 5935 lhw, hw, lvif, vif, ac); 5936#endif 5937 lvif->hw_queue_stopped[ac] = false; 5938 5939 LKPI_80211_LVIF_LOCK(lvif); 5940 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 5941 struct ieee80211_sta *sta; 5942 5943 sta = LSTA_TO_STA(lsta); 5944 for (tid = 0; tid < nitems(sta->txq); tid++) { 5945 struct lkpi_txq *ltxq; 5946 5947 if (sta->txq[tid] == NULL) 5948 continue; 5949 5950 if (sta->txq[tid]->ac != ac) 5951 continue; 5952 5953 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 5954 if (!ltxq->stopped) 5955 continue; 5956 5957 ltxq->stopped = false; 5958 5959 /* XXX-BZ see when this explodes with all the locking. taskq? */ 5960 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 5961 } 5962 } 5963 LKPI_80211_LVIF_UNLOCK(lvif); 5964 } 5965 } 5966 } 5967 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5968} 5969 5970void 5971linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 5972{ 5973 int i; 5974 5975 IMPROVE_TXQ("Is this all/enough here?"); 5976 for (i = 0; i < hw->queues; i++) 5977 lkpi_ieee80211_wake_queues(hw, i); 5978} 5979 5980void 5981linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 5982{ 5983 5984 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5985 __func__, qnum, hw->queues, hw)); 5986 5987 lkpi_ieee80211_wake_queues(hw, qnum); 5988} 5989 5990/* This is just hardware queues. */ 5991void 5992linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 5993{ 5994 struct lkpi_hw *lhw; 5995 5996 lhw = HW_TO_LHW(hw); 5997 5998 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 5999 IMPROVE_TXQ("LOCKING"); 6000 if (++lhw->txq_generation[ac] == 0) 6001 lhw->txq_generation[ac]++; 6002} 6003 6004struct ieee80211_txq * 6005linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 6006{ 6007 struct lkpi_hw *lhw; 6008 struct ieee80211_txq *txq; 6009 struct lkpi_txq *ltxq; 6010 6011 lhw = HW_TO_LHW(hw); 6012 txq = NULL; 6013 6014 IMPROVE_TXQ("LOCKING"); 6015 6016 /* Check that we are scheduled. */ 6017 if (lhw->txq_generation[ac] == 0) 6018 goto out; 6019 6020 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 6021 if (ltxq == NULL) 6022 goto out; 6023 if (ltxq->txq_generation == lhw->txq_generation[ac]) 6024 goto out; 6025 6026 ltxq->txq_generation = lhw->txq_generation[ac]; 6027 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 6028 txq = <xq->txq; 6029 TAILQ_ELEM_INIT(ltxq, txq_entry); 6030 6031out: 6032 return (txq); 6033} 6034 6035void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 6036 struct ieee80211_txq *txq, bool withoutpkts) 6037{ 6038 struct lkpi_hw *lhw; 6039 struct lkpi_txq *ltxq; 6040 bool ltxq_empty; 6041 6042 ltxq = TXQ_TO_LTXQ(txq); 6043 6044 IMPROVE_TXQ("LOCKING"); 6045 6046 /* Only schedule if work to do or asked to anyway. */ 6047 LKPI_80211_LTXQ_LOCK(ltxq); 6048 ltxq_empty = skb_queue_empty(<xq->skbq); 6049 LKPI_80211_LTXQ_UNLOCK(ltxq); 6050 if (!withoutpkts && ltxq_empty) 6051 goto out; 6052 6053 /* Make sure we do not double-schedule. */ 6054 if (ltxq->txq_entry.tqe_next != NULL) 6055 goto out; 6056 6057 lhw = HW_TO_LHW(hw); 6058 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 6059out: 6060 return; 6061} 6062 6063void 6064linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 6065 struct ieee80211_txq *txq) 6066{ 6067 struct lkpi_hw *lhw; 6068 struct ieee80211_txq *ntxq; 6069 struct ieee80211_tx_control control; 6070 struct sk_buff *skb; 6071 6072 lhw = HW_TO_LHW(hw); 6073 6074 LKPI_80211_LHW_TXQ_LOCK(lhw); 6075 ieee80211_txq_schedule_start(hw, txq->ac); 6076 do { 6077 ntxq = ieee80211_next_txq(hw, txq->ac); 6078 if (ntxq == NULL) 6079 break; 6080 6081 memset(&control, 0, sizeof(control)); 6082 control.sta = ntxq->sta; 6083 do { 6084 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 6085 if (skb == NULL) 6086 break; 6087 lkpi_80211_mo_tx(hw, &control, skb); 6088 } while(1); 6089 6090 ieee80211_return_txq(hw, ntxq, false); 6091 } while (1); 6092 ieee80211_txq_schedule_end(hw, txq->ac); 6093 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 6094} 6095 6096/* -------------------------------------------------------------------------- */ 6097 6098struct lkpi_cfg80211_bss { 6099 u_int refcnt; 6100 struct cfg80211_bss bss; 6101}; 6102 6103struct lkpi_cfg80211_get_bss_iter_lookup { 6104 struct wiphy *wiphy; 6105 struct linuxkpi_ieee80211_channel *chan; 6106 const uint8_t *bssid; 6107 const uint8_t *ssid; 6108 size_t ssid_len; 6109 enum ieee80211_bss_type bss_type; 6110 enum ieee80211_privacy privacy; 6111 6112 /* 6113 * Something to store a copy of the result as the net80211 scan cache 6114 * is not refoucnted so a scan entry might go away any time. 6115 */ 6116 bool match; 6117 struct cfg80211_bss *bss; 6118}; 6119 6120static void 6121lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 6122{ 6123 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 6124 size_t ielen; 6125 6126 lookup = arg; 6127 6128 /* Do not try to find another match. */ 6129 if (lookup->match) 6130 return; 6131 6132 /* Nothing to store result. */ 6133 if (lookup->bss == NULL) 6134 return; 6135 6136 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 6137 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 6138 /* We have no idea what to compare to as the drivers only request ANY */ 6139 return; 6140 } 6141 6142 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 6143 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 6144 /* We have no idea what to compare to as the drivers only request ANY */ 6145 return; 6146 } 6147 6148 if (lookup->chan != NULL) { 6149 struct linuxkpi_ieee80211_channel *chan; 6150 6151 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 6152 se->se_chan->ic_freq); 6153 if (chan == NULL || chan != lookup->chan) 6154 return; 6155 } 6156 6157 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 6158 return; 6159 6160 if (lookup->ssid) { 6161 if (lookup->ssid_len != se->se_ssid[1] || 6162 se->se_ssid[1] == 0) 6163 return; 6164 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 6165 return; 6166 } 6167 6168 ielen = se->se_ies.len; 6169 6170 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 6171 M_LKPI80211, M_NOWAIT | M_ZERO); 6172 if (lookup->bss->ies == NULL) 6173 return; 6174 6175 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 6176 lookup->bss->ies->len = ielen; 6177 if (ielen) 6178 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 6179 6180 lookup->match = true; 6181} 6182 6183struct cfg80211_bss * 6184linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 6185 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 6186 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 6187{ 6188 struct lkpi_cfg80211_bss *lbss; 6189 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 6190 struct lkpi_hw *lhw; 6191 struct ieee80211vap *vap; 6192 6193 lhw = wiphy_priv(wiphy); 6194 6195 /* Let's hope we can alloc. */ 6196 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 6197 if (lbss == NULL) { 6198 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 6199 return (NULL); 6200 } 6201 6202 lookup.wiphy = wiphy; 6203 lookup.chan = chan; 6204 lookup.bssid = bssid; 6205 lookup.ssid = ssid; 6206 lookup.ssid_len = ssid_len; 6207 lookup.bss_type = bss_type; 6208 lookup.privacy = privacy; 6209 lookup.match = false; 6210 lookup.bss = &lbss->bss; 6211 6212 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 6213 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 6214 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 6215 if (!lookup.match) { 6216 free(lbss, M_LKPI80211); 6217 return (NULL); 6218 } 6219 6220 refcount_init(&lbss->refcnt, 1); 6221 return (&lbss->bss); 6222} 6223 6224void 6225linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 6226{ 6227 struct lkpi_cfg80211_bss *lbss; 6228 6229 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 6230 6231 /* Free everything again on refcount ... */ 6232 if (refcount_release(&lbss->refcnt)) { 6233 free(lbss->bss.ies, M_LKPI80211); 6234 free(lbss, M_LKPI80211); 6235 } 6236} 6237 6238void 6239linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 6240{ 6241 struct lkpi_hw *lhw; 6242 struct ieee80211com *ic; 6243 struct ieee80211vap *vap; 6244 6245 lhw = wiphy_priv(wiphy); 6246 ic = lhw->ic; 6247 6248 /* 6249 * If we haven't called ieee80211_ifattach() yet 6250 * or there is no VAP, there are no scans to flush. 6251 */ 6252 if (ic == NULL || 6253 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 6254 return; 6255 6256 /* Should only happen on the current one? Not seen it late enough. */ 6257 IEEE80211_LOCK(ic); 6258 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 6259 ieee80211_scan_flush(vap); 6260 IEEE80211_UNLOCK(ic); 6261} 6262 6263/* -------------------------------------------------------------------------- */ 6264 6265MODULE_VERSION(linuxkpi_wlan, 1); 6266MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 6267MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 6268