1 /*- 2 * Copyright (c) 2020-2023 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn 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/cdefs.h> 43 #include <sys/param.h> 44 #include <sys/types.h> 45 #include <sys/kernel.h> 46 #include <sys/errno.h> 47 #include <sys/malloc.h> 48 #include <sys/module.h> 49 #include <sys/mutex.h> 50 #include <sys/socket.h> 51 #include <sys/sysctl.h> 52 #include <sys/queue.h> 53 #include <sys/taskqueue.h> 54 #include <sys/libkern.h> 55 56 #include <net/if.h> 57 #include <net/if_var.h> 58 #include <net/if_media.h> 59 #include <net/ethernet.h> 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_proto.h> 63 #include <net80211/ieee80211_ratectl.h> 64 #include <net80211/ieee80211_radiotap.h> 65 #include <net80211/ieee80211_vht.h> 66 67 #define LINUXKPI_NET80211 68 #include <net/mac80211.h> 69 70 #include <linux/workqueue.h> 71 #include "linux_80211.h" 72 73 #define LKPI_80211_WME 74 /* #define LKPI_80211_HW_CRYPTO */ 75 /* #define LKPI_80211_VHT */ 76 /* #define LKPI_80211_HT */ 77 #if defined(LKPI_80211_VHT) && !defined(LKPI_80211_HT) 78 #define LKPI_80211_HT 79 #endif 80 81 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 82 83 /* XXX-BZ really want this and others in queue.h */ 84 #define TAILQ_ELEM_INIT(elm, field) do { \ 85 (elm)->field.tqe_next = NULL; \ 86 (elm)->field.tqe_prev = NULL; \ 87 } while (0) 88 89 /* -------------------------------------------------------------------------- */ 90 91 /* Keep public for as long as header files are using it too. */ 92 int linuxkpi_debug_80211; 93 94 #ifdef LINUXKPI_DEBUG_80211 95 SYSCTL_DECL(_compat_linuxkpi); 96 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 97 "LinuxKPI 802.11 compatibility layer"); 98 99 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 100 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 101 102 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 103 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 104 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 105 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 106 #else 107 #define UNIMPLEMENTED do { } while (0) 108 #define TRACEOK() do { } while (0) 109 #endif 110 111 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 112 #ifndef PREP_TX_INFO_DURATION 113 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 114 #endif 115 116 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 117 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 118 119 /* IEEE 802.11-05/0257r1 */ 120 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 121 122 /* IEEE 802.11e Table 20i-UP-to-AC mappings. */ 123 static const uint8_t ieee80211e_up_to_ac[] = { 124 IEEE80211_AC_BE, 125 IEEE80211_AC_BK, 126 IEEE80211_AC_BK, 127 IEEE80211_AC_BE, 128 IEEE80211_AC_VI, 129 IEEE80211_AC_VI, 130 IEEE80211_AC_VO, 131 IEEE80211_AC_VO, 132 #if 0 133 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 134 #endif 135 }; 136 137 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 138 /* 139 * XXX TODO need a "glue layer" to link cfg80211 ops to 140 * mac80211 and to the driver or net80211. 141 * Can we pass some on 1:1? Need to compare the (*f)(). 142 */ 143 }; 144 145 #if 0 146 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 147 struct ieee80211_node *); 148 #endif 149 static void lkpi_80211_txq_tx_one(struct lkpi_sta *, struct mbuf *); 150 static void lkpi_80211_txq_task(void *, int); 151 static void lkpi_80211_lhw_rxq_task(void *, int); 152 static void lkpi_ieee80211_free_skb_mbuf(void *); 153 #ifdef LKPI_80211_WME 154 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 155 #endif 156 157 #if defined(LKPI_80211_HT) 158 static void 159 lkpi_sta_sync_ht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *ht_rx_nss) 160 { 161 struct ieee80211vap *vap; 162 uint8_t *ie; 163 struct ieee80211_ht_cap *htcap; 164 int i, rx_nss; 165 166 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) 167 return; 168 169 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && 170 IEEE80211_IS_CHAN_HT40(ni->ni_chan)) 171 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_40; 172 173 sta->deflink.ht_cap.ht_supported = true; 174 175 /* htcap->ampdu_params_info */ 176 vap = ni->ni_vap; 177 sta->deflink.ht_cap.ampdu_density = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 178 if (sta->deflink.ht_cap.ampdu_density > vap->iv_ampdu_density) 179 sta->deflink.ht_cap.ampdu_density = vap->iv_ampdu_density; 180 sta->deflink.ht_cap.ampdu_factor = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 181 if (sta->deflink.ht_cap.ampdu_factor > vap->iv_ampdu_rxmax) 182 sta->deflink.ht_cap.ampdu_factor = vap->iv_ampdu_rxmax; 183 184 ie = ni->ni_ies.htcap_ie; 185 KASSERT(ie != NULL, ("%s: HT but no htcap_ie on ni %p\n", __func__, ni)); 186 if (ie[0] == IEEE80211_ELEMID_VENDOR) 187 ie += 4; 188 ie += 2; 189 htcap = (struct ieee80211_ht_cap *)ie; 190 sta->deflink.ht_cap.cap = htcap->cap_info; 191 sta->deflink.ht_cap.mcs = htcap->mcs; 192 193 rx_nss = 0; 194 for (i = 0; i < nitems(htcap->mcs.rx_mask); i++) { 195 if (htcap->mcs.rx_mask[i]) 196 rx_nss++; 197 } 198 if (ht_rx_nss != NULL) 199 *ht_rx_nss = rx_nss; 200 201 IMPROVE("sta->wme, sta->deflink.agg.max*"); 202 } 203 #endif 204 205 #if defined(LKPI_80211_VHT) 206 static void 207 lkpi_sta_sync_vht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *vht_rx_nss) 208 { 209 210 if ((ni->ni_flags & IEEE80211_NODE_VHT) == 0) 211 return; 212 213 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 214 #ifdef __notyet__ 215 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 216 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; /* XXX? */ 217 } else 218 #endif 219 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 220 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; 221 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 222 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_80; 223 } 224 225 IMPROVE("VHT sync ni to sta"); 226 return; 227 } 228 #endif 229 230 static void 231 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 232 const char *_f, int _l) 233 { 234 235 #ifdef LINUXKPI_DEBUG_80211 236 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 237 return; 238 if (lsta == NULL) 239 return; 240 241 printf("%s:%d lsta %p ni %p sta %p\n", 242 _f, _l, lsta, ni, &lsta->sta); 243 if (ni != NULL) 244 ieee80211_dump_node(NULL, ni); 245 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 246 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 247 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 248 #endif 249 } 250 251 static void 252 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 253 { 254 255 256 LKPI_80211_LVIF_LOCK(lvif); 257 KASSERT(lsta->lsta_entry.tqe_prev != NULL, 258 ("%s: lsta %p lsta_entry.tqe_prev %p ni %p\n", __func__, 259 lsta, lsta->lsta_entry.tqe_prev, lsta->ni)); 260 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 261 LKPI_80211_LVIF_UNLOCK(lvif); 262 } 263 264 static struct lkpi_sta * 265 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 266 struct ieee80211_hw *hw, struct ieee80211_node *ni) 267 { 268 struct lkpi_sta *lsta; 269 struct lkpi_vif *lvif; 270 struct ieee80211_vif *vif; 271 struct ieee80211_sta *sta; 272 int band, i, tid; 273 int ht_rx_nss; 274 int vht_rx_nss; 275 276 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 277 M_NOWAIT | M_ZERO); 278 if (lsta == NULL) 279 return (NULL); 280 281 lsta->added_to_drv = false; 282 lsta->state = IEEE80211_STA_NOTEXIST; 283 /* 284 * Link the ni to the lsta here without taking a reference. 285 * For one we would have to take the reference in node_init() 286 * as ieee80211_alloc_node() will initialise the refcount after us. 287 * For the other a ni and an lsta are 1:1 mapped and always together 288 * from [ic_]node_alloc() to [ic_]node_free() so we are essentally 289 * using the ni references for the lsta as well despite it being 290 * two separate allocations. 291 */ 292 lsta->ni = ni; 293 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 294 ni->ni_drv_data = lsta; 295 296 lvif = VAP_TO_LVIF(vap); 297 vif = LVIF_TO_VIF(lvif); 298 sta = LSTA_TO_STA(lsta); 299 300 IEEE80211_ADDR_COPY(sta->addr, mac); 301 302 /* TXQ */ 303 for (tid = 0; tid < nitems(sta->txq); tid++) { 304 struct lkpi_txq *ltxq; 305 306 /* We are not limiting ourselves to hw.queues here. */ 307 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 308 M_LKPI80211, M_NOWAIT | M_ZERO); 309 if (ltxq == NULL) 310 goto cleanup; 311 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 312 if (tid == IEEE80211_NUM_TIDS) { 313 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 314 free(ltxq, M_LKPI80211); 315 continue; 316 } 317 IMPROVE("AP/if we support non-STA here too"); 318 ltxq->txq.ac = IEEE80211_AC_VO; 319 } else { 320 ltxq->txq.ac = ieee80211e_up_to_ac[tid & 7]; 321 } 322 ltxq->seen_dequeue = false; 323 ltxq->stopped = false; 324 ltxq->txq.vif = vif; 325 ltxq->txq.tid = tid; 326 ltxq->txq.sta = sta; 327 TAILQ_ELEM_INIT(ltxq, txq_entry); 328 skb_queue_head_init(<xq->skbq); 329 LKPI_80211_LTXQ_LOCK_INIT(ltxq); 330 sta->txq[tid] = <xq->txq; 331 } 332 333 /* Deflink information. */ 334 for (band = 0; band < NUM_NL80211_BANDS; band++) { 335 struct ieee80211_supported_band *supband; 336 337 supband = hw->wiphy->bands[band]; 338 if (supband == NULL) 339 continue; 340 341 for (i = 0; i < supband->n_bitrates; i++) { 342 343 IMPROVE("Further supband->bitrates[i]* checks?"); 344 /* or should we get them from the ni? */ 345 sta->deflink.supp_rates[band] |= BIT(i); 346 } 347 } 348 349 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 350 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_20; 351 sta->deflink.rx_nss = 0; 352 353 ht_rx_nss = 0; 354 #if defined(LKPI_80211_HT) 355 lkpi_sta_sync_ht_from_ni(sta, ni, &ht_rx_nss); 356 #endif 357 vht_rx_nss = 0; 358 #if defined(LKPI_80211_VHT) 359 lkpi_sta_sync_vht_from_ni(sta, ni, &vht_rx_nss); 360 #endif 361 362 sta->deflink.rx_nss = MAX(ht_rx_nss, sta->deflink.rx_nss); 363 sta->deflink.rx_nss = MAX(vht_rx_nss, sta->deflink.rx_nss); 364 IMPROVE("he, ... smps_mode, .."); 365 366 /* Link configuration. */ 367 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 368 sta->link[0] = &sta->deflink; 369 for (i = 1; i < nitems(sta->link); i++) { 370 IMPROVE("more links; only link[0] = deflink currently."); 371 } 372 373 /* Deferred TX path. */ 374 LKPI_80211_LSTA_TXQ_LOCK_INIT(lsta); 375 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 376 mbufq_init(&lsta->txq, IFQ_MAXLEN); 377 lsta->txq_ready = true; 378 379 return (lsta); 380 381 cleanup: 382 for (; tid >= 0; tid--) { 383 struct lkpi_txq *ltxq; 384 385 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 386 LKPI_80211_LTXQ_LOCK_DESTROY(ltxq); 387 free(sta->txq[tid], M_LKPI80211); 388 } 389 free(lsta, M_LKPI80211); 390 return (NULL); 391 } 392 393 static void 394 lkpi_lsta_free(struct lkpi_sta *lsta, struct ieee80211_node *ni) 395 { 396 struct mbuf *m; 397 398 if (lsta->added_to_drv) 399 panic("%s: Trying to free an lsta still known to firmware: " 400 "lsta %p ni %p added_to_drv %d\n", 401 __func__, lsta, ni, lsta->added_to_drv); 402 403 /* XXX-BZ free resources, ... */ 404 IMPROVE(); 405 406 /* Drain sta->txq[] */ 407 408 LKPI_80211_LSTA_TXQ_LOCK(lsta); 409 lsta->txq_ready = false; 410 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 411 412 /* Drain taskq, won't be restarted until added_to_drv is set again. */ 413 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 414 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 415 416 /* Flush mbufq (make sure to release ni refs!). */ 417 m = mbufq_dequeue(&lsta->txq); 418 while (m != NULL) { 419 struct ieee80211_node *nim; 420 421 nim = (struct ieee80211_node *)m->m_pkthdr.rcvif; 422 if (nim != NULL) 423 ieee80211_free_node(nim); 424 m_freem(m); 425 m = mbufq_dequeue(&lsta->txq); 426 } 427 KASSERT(mbufq_empty(&lsta->txq), ("%s: lsta %p has txq len %d != 0\n", 428 __func__, lsta, mbufq_len(&lsta->txq))); 429 LKPI_80211_LSTA_TXQ_LOCK_DESTROY(lsta); 430 431 /* Remove lsta from vif; that is done by the state machine. Should assert it? */ 432 433 IMPROVE("Make sure everything is cleaned up."); 434 435 /* Free lsta. */ 436 lsta->ni = NULL; 437 ni->ni_drv_data = NULL; 438 free(lsta, M_LKPI80211); 439 } 440 441 442 static enum nl80211_band 443 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 444 { 445 446 if (IEEE80211_IS_CHAN_2GHZ(c)) 447 return (NL80211_BAND_2GHZ); 448 else if (IEEE80211_IS_CHAN_5GHZ(c)) 449 return (NL80211_BAND_5GHZ); 450 #ifdef __notyet__ 451 else if () 452 return (NL80211_BAND_6GHZ); 453 else if () 454 return (NL80211_BAND_60GHZ); 455 else if (IEEE80211_IS_CHAN_GSM(c)) 456 return (NL80211_BAND_XXX); 457 #endif 458 else 459 panic("%s: unsupported band. c %p flags %#x\n", 460 __func__, c, c->ic_flags); 461 } 462 463 static uint32_t 464 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 465 { 466 467 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 468 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 469 switch (band) { 470 case NL80211_BAND_2GHZ: 471 return (IEEE80211_CHAN_2GHZ); 472 break; 473 case NL80211_BAND_5GHZ: 474 return (IEEE80211_CHAN_5GHZ); 475 break; 476 case NL80211_BAND_60GHZ: 477 break; 478 case NL80211_BAND_6GHZ: 479 break; 480 default: 481 panic("%s: unsupported band %u\n", __func__, band); 482 break; 483 } 484 485 IMPROVE(); 486 return (0x00); 487 } 488 489 #if 0 490 static enum ieee80211_ac_numbers 491 lkpi_ac_net_to_l80211(int ac) 492 { 493 494 switch (ac) { 495 case WME_AC_VO: 496 return (IEEE80211_AC_VO); 497 case WME_AC_VI: 498 return (IEEE80211_AC_VI); 499 case WME_AC_BE: 500 return (IEEE80211_AC_BE); 501 case WME_AC_BK: 502 return (IEEE80211_AC_BK); 503 default: 504 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 505 return (IEEE80211_AC_BE); 506 } 507 } 508 #endif 509 510 static enum nl80211_iftype 511 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 512 { 513 514 switch (opmode) { 515 case IEEE80211_M_IBSS: 516 return (NL80211_IFTYPE_ADHOC); 517 break; 518 case IEEE80211_M_STA: 519 return (NL80211_IFTYPE_STATION); 520 break; 521 case IEEE80211_M_WDS: 522 return (NL80211_IFTYPE_WDS); 523 break; 524 case IEEE80211_M_HOSTAP: 525 return (NL80211_IFTYPE_AP); 526 break; 527 case IEEE80211_M_MONITOR: 528 return (NL80211_IFTYPE_MONITOR); 529 break; 530 case IEEE80211_M_MBSS: 531 return (NL80211_IFTYPE_MESH_POINT); 532 break; 533 case IEEE80211_M_AHDEMO: 534 /* FALLTHROUGH */ 535 default: 536 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 537 /* FALLTHROUGH */ 538 } 539 return (NL80211_IFTYPE_UNSPECIFIED); 540 } 541 542 #ifdef LKPI_80211_HW_CRYPTO 543 static uint32_t 544 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 545 { 546 547 switch (wlan_cipher_suite) { 548 case WLAN_CIPHER_SUITE_WEP40: 549 return (IEEE80211_CRYPTO_WEP); 550 case WLAN_CIPHER_SUITE_TKIP: 551 return (IEEE80211_CRYPTO_TKIP); 552 case WLAN_CIPHER_SUITE_CCMP: 553 return (IEEE80211_CRYPTO_AES_CCM); 554 case WLAN_CIPHER_SUITE_WEP104: 555 return (IEEE80211_CRYPTO_WEP); 556 case WLAN_CIPHER_SUITE_AES_CMAC: 557 case WLAN_CIPHER_SUITE_GCMP: 558 case WLAN_CIPHER_SUITE_GCMP_256: 559 case WLAN_CIPHER_SUITE_CCMP_256: 560 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 561 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 562 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 563 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 564 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 565 break; 566 default: 567 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 568 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 569 } 570 571 return (0); 572 } 573 574 static uint32_t 575 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 576 { 577 578 switch (cipher) { 579 case IEEE80211_CIPHER_TKIP: 580 return (WLAN_CIPHER_SUITE_TKIP); 581 case IEEE80211_CIPHER_AES_CCM: 582 return (WLAN_CIPHER_SUITE_CCMP); 583 case IEEE80211_CIPHER_WEP: 584 if (keylen < 8) 585 return (WLAN_CIPHER_SUITE_WEP40); 586 else 587 return (WLAN_CIPHER_SUITE_WEP104); 588 break; 589 case IEEE80211_CIPHER_AES_OCB: 590 case IEEE80211_CIPHER_TKIPMIC: 591 case IEEE80211_CIPHER_CKIP: 592 case IEEE80211_CIPHER_NONE: 593 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 594 break; 595 default: 596 printf("%s: unknown cipher %#010x\n", __func__, cipher); 597 }; 598 return (0); 599 } 600 #endif 601 602 #ifdef __notyet__ 603 static enum ieee80211_sta_state 604 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 605 { 606 607 /* 608 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 609 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 610 */ 611 switch (state) { 612 case IEEE80211_S_INIT: 613 return (IEEE80211_STA_NOTEXIST); 614 case IEEE80211_S_SCAN: 615 return (IEEE80211_STA_NONE); 616 case IEEE80211_S_AUTH: 617 return (IEEE80211_STA_AUTH); 618 case IEEE80211_S_ASSOC: 619 return (IEEE80211_STA_ASSOC); 620 case IEEE80211_S_RUN: 621 return (IEEE80211_STA_AUTHORIZED); 622 case IEEE80211_S_CAC: 623 case IEEE80211_S_CSA: 624 case IEEE80211_S_SLEEP: 625 default: 626 UNIMPLEMENTED; 627 }; 628 629 return (IEEE80211_STA_NOTEXIST); 630 } 631 #endif 632 633 static struct linuxkpi_ieee80211_channel * 634 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 635 struct ieee80211_channel *c) 636 { 637 struct ieee80211_hw *hw; 638 struct linuxkpi_ieee80211_channel *channels; 639 enum nl80211_band band; 640 int i, nchans; 641 642 hw = LHW_TO_HW(lhw); 643 band = lkpi_net80211_chan_to_nl80211_band(c); 644 if (hw->wiphy->bands[band] == NULL) 645 return (NULL); 646 647 nchans = hw->wiphy->bands[band]->n_channels; 648 if (nchans <= 0) 649 return (NULL); 650 651 channels = hw->wiphy->bands[band]->channels; 652 for (i = 0; i < nchans; i++) { 653 if (channels[i].hw_value == c->ic_ieee) 654 return (&channels[i]); 655 } 656 657 return (NULL); 658 } 659 660 #if 0 661 static struct linuxkpi_ieee80211_channel * 662 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 663 { 664 struct linuxkpi_ieee80211_channel *chan; 665 struct ieee80211_channel *c; 666 struct lkpi_hw *lhw; 667 668 chan = NULL; 669 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 670 c = ni->ni_chan; 671 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 672 c = ic->ic_bsschan; 673 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 674 c = ic->ic_curchan; 675 else 676 c = NULL; 677 678 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 679 lhw = ic->ic_softc; 680 chan = lkpi_find_lkpi80211_chan(lhw, c); 681 } 682 683 return (chan); 684 } 685 #endif 686 687 struct linuxkpi_ieee80211_channel * 688 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 689 { 690 enum nl80211_band band; 691 692 for (band = 0; band < NUM_NL80211_BANDS; band++) { 693 struct ieee80211_supported_band *supband; 694 struct linuxkpi_ieee80211_channel *channels; 695 int i; 696 697 supband = wiphy->bands[band]; 698 if (supband == NULL || supband->n_channels == 0) 699 continue; 700 701 channels = supband->channels; 702 for (i = 0; i < supband->n_channels; i++) { 703 if (channels[i].center_freq == freq) 704 return (&channels[i]); 705 } 706 } 707 708 return (NULL); 709 } 710 711 #ifdef LKPI_80211_HW_CRYPTO 712 static int 713 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 714 enum set_key_cmd cmd) 715 { 716 struct ieee80211com *ic; 717 struct lkpi_hw *lhw; 718 struct ieee80211_hw *hw; 719 struct lkpi_vif *lvif; 720 struct ieee80211_vif *vif; 721 struct ieee80211_sta *sta; 722 struct ieee80211_node *ni; 723 struct ieee80211_key_conf *kc; 724 int error; 725 726 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 727 728 ic = vap->iv_ic; 729 lhw = ic->ic_softc; 730 hw = LHW_TO_HW(lhw); 731 lvif = VAP_TO_LVIF(vap); 732 vif = LVIF_TO_VIF(lvif); 733 734 memset(&kc, 0, sizeof(kc)); 735 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 736 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 737 k->wk_cipher->ic_cipher, k->wk_keylen); 738 kc->keyidx = k->wk_keyix; 739 #if 0 740 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 741 #endif 742 atomic64_set(&kc->tx_pn, k->wk_keytsc); 743 kc->keylen = k->wk_keylen; 744 memcpy(kc->key, k->wk_key, k->wk_keylen); 745 746 switch (kc->cipher) { 747 case WLAN_CIPHER_SUITE_CCMP: 748 kc->iv_len = k->wk_cipher->ic_header; 749 kc->icv_len = k->wk_cipher->ic_trailer; 750 break; 751 case WLAN_CIPHER_SUITE_TKIP: 752 default: 753 IMPROVE(); 754 return (0); 755 }; 756 757 ni = vap->iv_bss; 758 sta = ieee80211_find_sta(vif, ni->ni_bssid); 759 if (sta != NULL) { 760 struct lkpi_sta *lsta; 761 762 lsta = STA_TO_LSTA(sta); 763 lsta->kc = kc; 764 } 765 766 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 767 if (error != 0) { 768 /* XXX-BZ leaking kc currently */ 769 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 770 return (0); 771 } else { 772 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 773 "flags %#10x\n", __func__, 774 kc->keyidx, kc->hw_key_idx, kc->flags); 775 return (1); 776 } 777 } 778 779 static int 780 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 781 { 782 783 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 784 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 785 } 786 static int 787 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 788 { 789 790 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 791 } 792 #endif 793 794 static u_int 795 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 796 { 797 struct netdev_hw_addr_list *mc_list; 798 struct netdev_hw_addr *addr; 799 800 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 801 __func__, arg, sdl, cnt)); 802 803 mc_list = arg; 804 /* If it is on the list already skip it. */ 805 netdev_hw_addr_list_for_each(addr, mc_list) { 806 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 807 return (0); 808 } 809 810 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 811 if (addr == NULL) 812 return (0); 813 814 INIT_LIST_HEAD(&addr->addr_list); 815 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 816 /* XXX this should be a netdev function? */ 817 list_add(&addr->addr_list, &mc_list->addr_list); 818 mc_list->count++; 819 820 #ifdef LINUXKPI_DEBUG_80211 821 if (linuxkpi_debug_80211 & D80211_TRACE) 822 printf("%s:%d: mc_list count %d: added %6D\n", 823 __func__, __LINE__, mc_list->count, addr->addr, ":"); 824 #endif 825 826 return (1); 827 } 828 829 static void 830 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 831 { 832 struct lkpi_hw *lhw; 833 struct ieee80211_hw *hw; 834 struct netdev_hw_addr_list mc_list; 835 struct list_head *le, *next; 836 struct netdev_hw_addr *addr; 837 struct ieee80211vap *vap; 838 u64 mc; 839 unsigned int changed_flags, total_flags; 840 841 lhw = ic->ic_softc; 842 843 if (lhw->ops->prepare_multicast == NULL || 844 lhw->ops->configure_filter == NULL) 845 return; 846 847 if (!lhw->update_mc && !force) 848 return; 849 850 changed_flags = total_flags = 0; 851 mc_list.count = 0; 852 INIT_LIST_HEAD(&mc_list.addr_list); 853 if (ic->ic_allmulti == 0) { 854 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 855 if_foreach_llmaddr(vap->iv_ifp, 856 lkpi_ic_update_mcast_copy, &mc_list); 857 } else { 858 changed_flags |= FIF_ALLMULTI; 859 } 860 861 hw = LHW_TO_HW(lhw); 862 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 863 /* 864 * XXX-BZ make sure to get this sorted what is a change, 865 * what gets all set; what was already set? 866 */ 867 total_flags = changed_flags; 868 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 869 870 #ifdef LINUXKPI_DEBUG_80211 871 if (linuxkpi_debug_80211 & D80211_TRACE) 872 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 873 __func__, changed_flags, mc_list.count, total_flags); 874 #endif 875 876 if (mc_list.count != 0) { 877 list_for_each_safe(le, next, &mc_list.addr_list) { 878 addr = list_entry(le, struct netdev_hw_addr, addr_list); 879 free(addr, M_LKPI80211); 880 mc_list.count--; 881 } 882 } 883 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 884 __func__, &mc_list, mc_list.count)); 885 } 886 887 static enum ieee80211_bss_changed 888 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 889 struct ieee80211vap *vap, const char *_f, int _l) 890 { 891 enum ieee80211_bss_changed bss_changed; 892 893 bss_changed = 0; 894 895 #ifdef LINUXKPI_DEBUG_80211 896 if (linuxkpi_debug_80211 & D80211_TRACE) 897 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 898 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 899 "sync_device_ts %u bss_changed %#08x\n", 900 __func__, __LINE__, _f, _l, 901 vif->cfg.assoc, vif->cfg.aid, 902 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 903 vif->bss_conf.sync_dtim_count, 904 (uintmax_t)vif->bss_conf.sync_tsf, 905 vif->bss_conf.sync_device_ts, 906 bss_changed); 907 #endif 908 909 if (vif->bss_conf.beacon_int != ni->ni_intval) { 910 vif->bss_conf.beacon_int = ni->ni_intval; 911 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 912 if (vif->bss_conf.beacon_int < 16) 913 vif->bss_conf.beacon_int = 16; 914 bss_changed |= BSS_CHANGED_BEACON_INT; 915 } 916 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 917 vap->iv_dtim_period > 0) { 918 vif->bss_conf.dtim_period = vap->iv_dtim_period; 919 bss_changed |= BSS_CHANGED_BEACON_INFO; 920 } 921 922 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 923 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 924 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 925 926 #ifdef LINUXKPI_DEBUG_80211 927 if (linuxkpi_debug_80211 & D80211_TRACE) 928 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 929 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 930 "sync_device_ts %u bss_changed %#08x\n", 931 __func__, __LINE__, _f, _l, 932 vif->cfg.assoc, vif->cfg.aid, 933 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 934 vif->bss_conf.sync_dtim_count, 935 (uintmax_t)vif->bss_conf.sync_tsf, 936 vif->bss_conf.sync_device_ts, 937 bss_changed); 938 #endif 939 940 return (bss_changed); 941 } 942 943 static void 944 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 945 { 946 struct ieee80211_hw *hw; 947 int error; 948 bool cancel; 949 950 LKPI_80211_LHW_SCAN_LOCK(lhw); 951 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 952 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 953 if (!cancel) 954 return; 955 956 hw = LHW_TO_HW(lhw); 957 958 IEEE80211_UNLOCK(lhw->ic); 959 LKPI_80211_LHW_LOCK(lhw); 960 /* Need to cancel the scan. */ 961 lkpi_80211_mo_cancel_hw_scan(hw, vif); 962 LKPI_80211_LHW_UNLOCK(lhw); 963 964 /* Need to make sure we see ieee80211_scan_completed. */ 965 LKPI_80211_LHW_SCAN_LOCK(lhw); 966 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 967 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 968 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 969 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 970 971 IEEE80211_LOCK(lhw->ic); 972 973 if (cancel) 974 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 975 __func__, error, lhw, vif); 976 } 977 978 static void 979 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 980 { 981 struct lkpi_hw *lhw; 982 int error; 983 bool old; 984 985 old = hw->conf.flags & IEEE80211_CONF_IDLE; 986 if (old == new) 987 return; 988 989 hw->conf.flags ^= IEEE80211_CONF_IDLE; 990 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 991 if (error != 0 && error != EOPNOTSUPP) { 992 lhw = HW_TO_LHW(hw); 993 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 994 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 995 } 996 } 997 998 static enum ieee80211_bss_changed 999 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 1000 struct lkpi_hw *lhw) 1001 { 1002 enum ieee80211_bss_changed changed; 1003 1004 changed = 0; 1005 sta->aid = 0; 1006 if (vif->cfg.assoc) { 1007 1008 lhw->update_mc = true; 1009 lkpi_update_mcast_filter(lhw->ic, true); 1010 1011 vif->cfg.assoc = false; 1012 vif->cfg.aid = 0; 1013 changed |= BSS_CHANGED_ASSOC; 1014 IMPROVE(); 1015 1016 /* 1017 * Executing the bss_info_changed(BSS_CHANGED_ASSOC) with 1018 * assoc = false right away here will remove the sta from 1019 * firmware for iwlwifi. 1020 * We no longer do this but only return the BSS_CHNAGED value. 1021 * The caller is responsible for removing the sta gong to 1022 * IEEE80211_STA_NOTEXIST and then executing the 1023 * bss_info_changed() update. 1024 * See lkpi_sta_run_to_init() for more detailed comment. 1025 */ 1026 } 1027 1028 return (changed); 1029 } 1030 1031 static void 1032 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 1033 bool dequeue_seen, bool no_emptyq) 1034 { 1035 struct lkpi_txq *ltxq; 1036 int tid; 1037 bool ltxq_empty; 1038 1039 /* Wake up all queues to know they are allocated in the driver. */ 1040 for (tid = 0; tid < nitems(sta->txq); tid++) { 1041 1042 if (tid == IEEE80211_NUM_TIDS) { 1043 IMPROVE("station specific?"); 1044 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 1045 continue; 1046 } else if (tid >= hw->queues) 1047 continue; 1048 1049 if (sta->txq[tid] == NULL) 1050 continue; 1051 1052 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1053 if (dequeue_seen && !ltxq->seen_dequeue) 1054 continue; 1055 1056 LKPI_80211_LTXQ_LOCK(ltxq); 1057 ltxq_empty = skb_queue_empty(<xq->skbq); 1058 LKPI_80211_LTXQ_UNLOCK(ltxq); 1059 if (no_emptyq && ltxq_empty) 1060 continue; 1061 1062 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 1063 } 1064 } 1065 1066 /* 1067 * On the way down from RUN -> ASSOC -> AUTH we may send a DISASSOC or DEAUTH 1068 * packet. The problem is that the state machine functions tend to hold the 1069 * LHW lock which will prevent lkpi_80211_txq_tx_one() from sending the packet. 1070 * We call this after dropping the ic lock and before acquiring the LHW lock. 1071 * we make sure no further packets are queued and if they are queued the task 1072 * will finish or be cancelled. At the end if a packet is left we manually 1073 * send it. scan_to_auth() would re-enable sending if the lsta would be 1074 * re-used. 1075 */ 1076 static void 1077 lkpi_80211_flush_tx(struct lkpi_hw *lhw, struct lkpi_sta *lsta) 1078 { 1079 struct mbufq mq; 1080 struct mbuf *m; 1081 int len; 1082 1083 LKPI_80211_LHW_UNLOCK_ASSERT(lhw); 1084 1085 /* Do not accept any new packets until scan_to_auth or lsta_free(). */ 1086 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1087 lsta->txq_ready = false; 1088 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1089 1090 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 1091 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 1092 1093 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1094 len = mbufq_len(&lsta->txq); 1095 if (len <= 0) { 1096 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1097 return; 1098 } 1099 1100 mbufq_init(&mq, IFQ_MAXLEN); 1101 mbufq_concat(&mq, &lsta->txq); 1102 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1103 1104 m = mbufq_dequeue(&mq); 1105 while (m != NULL) { 1106 lkpi_80211_txq_tx_one(lsta, m); 1107 m = mbufq_dequeue(&mq); 1108 } 1109 } 1110 1111 /* -------------------------------------------------------------------------- */ 1112 1113 static int 1114 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1115 { 1116 1117 return (0); 1118 } 1119 1120 /* lkpi_iv_newstate() handles the stop scan case generally. */ 1121 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 1122 1123 static int 1124 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1125 { 1126 struct linuxkpi_ieee80211_channel *chan; 1127 struct lkpi_chanctx *lchanctx; 1128 struct ieee80211_chanctx_conf *chanctx_conf; 1129 struct lkpi_hw *lhw; 1130 struct ieee80211_hw *hw; 1131 struct lkpi_vif *lvif; 1132 struct ieee80211_vif *vif; 1133 struct ieee80211_node *ni; 1134 struct lkpi_sta *lsta; 1135 enum ieee80211_bss_changed bss_changed; 1136 struct ieee80211_prep_tx_info prep_tx_info; 1137 uint32_t changed; 1138 int error; 1139 1140 /* 1141 * In here we use vap->iv_bss until lvif->lvif_bss is set. 1142 * For all later (STATE >= AUTH) functions we need to use the lvif 1143 * cache which will be tracked even through (*iv_update_bss)(). 1144 */ 1145 1146 if (vap->iv_bss == NULL) { 1147 ic_printf(vap->iv_ic, "%s: no iv_bss for vap %p\n", __func__, vap); 1148 return (EINVAL); 1149 } 1150 /* 1151 * Keep the ni alive locally. In theory (and practice) iv_bss can change 1152 * once we unlock here. This is due to net80211 allowing state changes 1153 * and new join1() despite having an active node as well as due to 1154 * the fact that the iv_bss can be swapped under the hood in (*iv_update_bss). 1155 */ 1156 ni = ieee80211_ref_node(vap->iv_bss); 1157 if (ni->ni_chan == NULL || ni->ni_chan == IEEE80211_CHAN_ANYC) { 1158 ic_printf(vap->iv_ic, "%s: no channel set for iv_bss ni %p " 1159 "on vap %p\n", __func__, ni, vap); 1160 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1161 return (EINVAL); 1162 } 1163 1164 lhw = vap->iv_ic->ic_softc; 1165 chan = lkpi_find_lkpi80211_chan(lhw, ni->ni_chan); 1166 if (chan == NULL) { 1167 ic_printf(vap->iv_ic, "%s: failed to get LKPI channel from " 1168 "iv_bss ni %p on vap %p\n", __func__, ni, vap); 1169 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1170 return (ESRCH); 1171 } 1172 1173 hw = LHW_TO_HW(lhw); 1174 lvif = VAP_TO_LVIF(vap); 1175 vif = LVIF_TO_VIF(lvif); 1176 1177 LKPI_80211_LVIF_LOCK(lvif); 1178 /* XXX-BZ KASSERT later? */ 1179 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) { 1180 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1181 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1182 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1183 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1184 lvif->lvif_bss_synched); 1185 return (EBUSY); 1186 } 1187 LKPI_80211_LVIF_UNLOCK(lvif); 1188 1189 IEEE80211_UNLOCK(vap->iv_ic); 1190 LKPI_80211_LHW_LOCK(lhw); 1191 1192 /* Add chanctx (or if exists, change it). */ 1193 if (vif->chanctx_conf != NULL) { 1194 chanctx_conf = vif->chanctx_conf; 1195 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1196 IMPROVE("diff changes for changed, working on live copy, rcu"); 1197 } else { 1198 /* Keep separate alloc as in Linux this is rcu managed? */ 1199 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 1200 M_LKPI80211, M_WAITOK | M_ZERO); 1201 chanctx_conf = &lchanctx->chanctx_conf; 1202 } 1203 1204 chanctx_conf->rx_chains_dynamic = 1; 1205 chanctx_conf->rx_chains_static = 1; 1206 chanctx_conf->radar_enabled = 1207 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 1208 chanctx_conf->def.chan = chan; 1209 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 1210 chanctx_conf->def.center_freq1 = chan->center_freq; 1211 chanctx_conf->def.center_freq2 = 0; 1212 IMPROVE("Check vht_cap from band not just chan?"); 1213 KASSERT(ni->ni_chan != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC, 1214 ("%s:%d: ni %p ni_chan %p\n", __func__, __LINE__, ni, ni->ni_chan)); 1215 #ifdef LKPI_80211_HT 1216 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 1217 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 1218 chanctx_conf->def.width = NL80211_CHAN_WIDTH_40; 1219 } else 1220 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20; 1221 } 1222 #endif 1223 #ifdef LKPI_80211_VHT 1224 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 1225 #ifdef __notyet__ 1226 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 1227 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80P80; 1228 chanctx_conf->def.center_freq2 = 0; /* XXX */ 1229 } else 1230 #endif 1231 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 1232 chanctx_conf->def.width = NL80211_CHAN_WIDTH_160; 1233 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 1234 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80; 1235 } 1236 #endif 1237 /* Responder ... */ 1238 chanctx_conf->min_def.chan = chan; 1239 chanctx_conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 1240 chanctx_conf->min_def.center_freq1 = chan->center_freq; 1241 chanctx_conf->min_def.center_freq2 = 0; 1242 IMPROVE("currently 20_NOHT min_def only"); 1243 1244 /* Set bss info (bss_info_changed). */ 1245 bss_changed = 0; 1246 vif->bss_conf.bssid = ni->ni_bssid; 1247 bss_changed |= BSS_CHANGED_BSSID; 1248 vif->bss_conf.txpower = ni->ni_txpower; 1249 bss_changed |= BSS_CHANGED_TXPOWER; 1250 vif->cfg.idle = false; 1251 bss_changed |= BSS_CHANGED_IDLE; 1252 1253 /* vif->bss_conf.basic_rates ? Where exactly? */ 1254 1255 /* Should almost assert it is this. */ 1256 vif->cfg.assoc = false; 1257 vif->cfg.aid = 0; 1258 1259 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1260 1261 error = 0; 1262 if (vif->chanctx_conf != NULL) { 1263 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 1264 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 1265 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 1266 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 1267 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 1268 } else { 1269 error = lkpi_80211_mo_add_chanctx(hw, chanctx_conf); 1270 if (error == 0 || error == EOPNOTSUPP) { 1271 vif->bss_conf.chandef.chan = chanctx_conf->def.chan; 1272 vif->bss_conf.chandef.width = chanctx_conf->def.width; 1273 vif->bss_conf.chandef.center_freq1 = 1274 chanctx_conf->def.center_freq1; 1275 #ifdef LKPI_80211_HT 1276 if (vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_40) { 1277 /* Note: it is 10 not 20. */ 1278 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) 1279 vif->bss_conf.chandef.center_freq1 += 10; 1280 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 1281 vif->bss_conf.chandef.center_freq1 -= 10; 1282 } 1283 #endif 1284 vif->bss_conf.chandef.center_freq2 = 1285 chanctx_conf->def.center_freq2; 1286 } else { 1287 ic_printf(vap->iv_ic, "%s:%d: mo_add_chanctx " 1288 "failed: %d\n", __func__, __LINE__, error); 1289 goto out; 1290 } 1291 1292 vif->bss_conf.chanctx_conf = chanctx_conf; 1293 1294 /* Assign vif chanctx. */ 1295 if (error == 0) 1296 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1297 &vif->bss_conf, chanctx_conf); 1298 if (error == EOPNOTSUPP) 1299 error = 0; 1300 if (error != 0) { 1301 ic_printf(vap->iv_ic, "%s:%d: mo_assign_vif_chanctx " 1302 "failed: %d\n", __func__, __LINE__, error); 1303 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1304 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1305 free(lchanctx, M_LKPI80211); 1306 goto out; 1307 } 1308 } 1309 IMPROVE("update radiotap chan fields too"); 1310 1311 /* RATES */ 1312 IMPROVE("bss info: not all needs to come now and rates are missing"); 1313 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1314 1315 /* 1316 * Given ni and lsta are 1:1 from alloc to free we can assert that 1317 * ni always has lsta data attach despite net80211 node swapping 1318 * under the hoods. 1319 */ 1320 KASSERT(ni->ni_drv_data != NULL, ("%s: ni %p ni_drv_data %p\n", 1321 __func__, ni, ni->ni_drv_data)); 1322 lsta = ni->ni_drv_data; 1323 1324 /* 1325 * Make sure in case the sta did not change and we re-add it, 1326 * that we can tx again. 1327 */ 1328 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1329 lsta->txq_ready = true; 1330 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1331 1332 LKPI_80211_LVIF_LOCK(lvif); 1333 /* Insert the [l]sta into the list of known stations. */ 1334 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1335 LKPI_80211_LVIF_UNLOCK(lvif); 1336 1337 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1338 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1339 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1340 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1341 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1342 if (error != 0) { 1343 IMPROVE("do we need to undo the chan ctx?"); 1344 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1345 "failed: %d\n", __func__, __LINE__, error); 1346 goto out; 1347 } 1348 #if 0 1349 lsta->added_to_drv = true; /* mo manages. */ 1350 #endif 1351 1352 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1353 1354 #if 0 1355 /* 1356 * Wakeup all queues now that sta is there so we have as much time to 1357 * possibly prepare the queue in the driver to be ready for the 1st 1358 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1359 * is no guarantee or way to check. 1360 * XXX-BZ and by now we know that this does not work on all drivers 1361 * for all queues. 1362 */ 1363 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1364 #endif 1365 1366 /* Start mgd_prepare_tx. */ 1367 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1368 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1369 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1370 lsta->in_mgd = true; 1371 1372 /* 1373 * What is going to happen next: 1374 * - <twiddle> .. we should end up in "auth_to_assoc" 1375 * - event_callback 1376 * - update sta_state (NONE to AUTH) 1377 * - mgd_complete_tx 1378 * (ideally we'd do that on a callback for something else ...) 1379 */ 1380 1381 LKPI_80211_LHW_UNLOCK(lhw); 1382 IEEE80211_LOCK(vap->iv_ic); 1383 1384 LKPI_80211_LVIF_LOCK(lvif); 1385 /* Re-check given (*iv_update_bss) could have happened while we were unlocked. */ 1386 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL || 1387 lsta->ni != vap->iv_bss) 1388 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1389 "lvif_bss->ni %p synched %d, ni %p lsta %p\n", __func__, __LINE__, 1390 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1391 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1392 lvif->lvif_bss_synched, ni, lsta); 1393 1394 /* 1395 * Reference the "ni" for caching the lsta/ni in lvif->lvif_bss. 1396 * Given we cache lsta we use lsta->ni instead of ni here (even though 1397 * lsta->ni == ni) to be distinct from the rest of the code where we do 1398 * assume that ni == vap->iv_bss which it may or may not be. 1399 * So do NOT use iv_bss here anymore as that may have diverged from our 1400 * function local ni already while ic was unlocked and would lead to 1401 * inconsistencies. Go and see if we lost a race and do not update 1402 * lvif_bss_synched in that case. 1403 */ 1404 ieee80211_ref_node(lsta->ni); 1405 lvif->lvif_bss = lsta; 1406 if (lsta->ni == vap->iv_bss) { 1407 lvif->lvif_bss_synched = true; 1408 } else { 1409 /* Set to un-synched no matter what. */ 1410 lvif->lvif_bss_synched = false; 1411 /* 1412 * We do not error as someone has to take us down. 1413 * If we are followed by a 2nd, new net80211::join1() going to 1414 * AUTH lkpi_sta_a_to_a() will error, lkpi_sta_auth_to_{scan,init}() 1415 * will take the lvif->lvif_bss node down eventually. 1416 * What happens with the vap->iv_bss node will entirely be up 1417 * to net80211 as we never used the node beyond alloc()/free() 1418 * and we do not hold an extra reference for that anymore given 1419 * ni : lsta == 1:1. 1420 */ 1421 } 1422 LKPI_80211_LVIF_UNLOCK(lvif); 1423 goto out_relocked; 1424 1425 out: 1426 LKPI_80211_LHW_UNLOCK(lhw); 1427 IEEE80211_LOCK(vap->iv_ic); 1428 out_relocked: 1429 /* 1430 * Release the reference that kept the ni stable locally 1431 * during the work of this function. 1432 */ 1433 if (ni != NULL) 1434 ieee80211_free_node(ni); 1435 return (error); 1436 } 1437 1438 static int 1439 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1440 { 1441 struct lkpi_hw *lhw; 1442 struct ieee80211_hw *hw; 1443 struct lkpi_vif *lvif; 1444 struct ieee80211_vif *vif; 1445 struct ieee80211_node *ni; 1446 struct lkpi_sta *lsta; 1447 struct ieee80211_sta *sta; 1448 struct ieee80211_prep_tx_info prep_tx_info; 1449 int error; 1450 1451 lhw = vap->iv_ic->ic_softc; 1452 hw = LHW_TO_HW(lhw); 1453 lvif = VAP_TO_LVIF(vap); 1454 vif = LVIF_TO_VIF(lvif); 1455 1456 LKPI_80211_LVIF_LOCK(lvif); 1457 #ifdef LINUXKPI_DEBUG_80211 1458 /* XXX-BZ KASSERT later; state going down so no action. */ 1459 if (lvif->lvif_bss == NULL) 1460 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1461 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1462 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1463 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1464 lvif->lvif_bss_synched); 1465 #endif 1466 1467 lsta = lvif->lvif_bss; 1468 LKPI_80211_LVIF_UNLOCK(lvif); 1469 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1470 "lvif %p vap %p\n", __func__, 1471 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1472 ni = lsta->ni; /* Reference held for lvif_bss. */ 1473 sta = LSTA_TO_STA(lsta); 1474 1475 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1476 1477 IEEE80211_UNLOCK(vap->iv_ic); 1478 LKPI_80211_LHW_LOCK(lhw); 1479 1480 /* flush, drop. */ 1481 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1482 1483 /* Wake tx queues to get packet(s) out. */ 1484 lkpi_wake_tx_queues(hw, sta, false, true); 1485 1486 /* flush, no drop */ 1487 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1488 1489 /* End mgd_complete_tx. */ 1490 if (lsta->in_mgd) { 1491 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1492 prep_tx_info.success = false; 1493 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1494 lsta->in_mgd = false; 1495 } 1496 1497 /* sync_rx_queues */ 1498 lkpi_80211_mo_sync_rx_queues(hw); 1499 1500 /* sta_pre_rcu_remove */ 1501 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1502 1503 /* Take the station down. */ 1504 1505 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1506 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1507 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1508 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1509 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1510 if (error != 0) { 1511 IMPROVE("do we need to undo the chan ctx?"); 1512 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1513 "failed: %d\n", __func__, __LINE__, error); 1514 goto out; 1515 } 1516 #if 0 1517 lsta->added_to_drv = false; /* mo manages. */ 1518 #endif 1519 1520 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1521 1522 LKPI_80211_LVIF_LOCK(lvif); 1523 /* Remove ni reference for this cache of lsta. */ 1524 lvif->lvif_bss = NULL; 1525 lvif->lvif_bss_synched = false; 1526 LKPI_80211_LVIF_UNLOCK(lvif); 1527 lkpi_lsta_remove(lsta, lvif); 1528 /* 1529 * The very last release the reference on the ni for the ni/lsta on 1530 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1531 * and potentially freed. 1532 */ 1533 ieee80211_free_node(ni); 1534 1535 /* conf_tx */ 1536 1537 /* Take the chan ctx down. */ 1538 if (vif->chanctx_conf != NULL) { 1539 struct lkpi_chanctx *lchanctx; 1540 struct ieee80211_chanctx_conf *chanctx_conf; 1541 1542 chanctx_conf = vif->chanctx_conf; 1543 /* Remove vif context. */ 1544 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1545 /* NB: vif->chanctx_conf is NULL now. */ 1546 1547 lkpi_hw_conf_idle(hw, true); 1548 1549 /* Remove chan ctx. */ 1550 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1551 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1552 free(lchanctx, M_LKPI80211); 1553 } 1554 1555 out: 1556 LKPI_80211_LHW_UNLOCK(lhw); 1557 IEEE80211_LOCK(vap->iv_ic); 1558 return (error); 1559 } 1560 1561 static int 1562 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1563 { 1564 int error; 1565 1566 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1567 if (error == 0) 1568 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1569 return (error); 1570 } 1571 1572 static int 1573 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1574 { 1575 struct lkpi_hw *lhw; 1576 struct ieee80211_hw *hw; 1577 struct lkpi_vif *lvif; 1578 struct ieee80211_vif *vif; 1579 struct lkpi_sta *lsta; 1580 struct ieee80211_prep_tx_info prep_tx_info; 1581 int error; 1582 1583 lhw = vap->iv_ic->ic_softc; 1584 hw = LHW_TO_HW(lhw); 1585 lvif = VAP_TO_LVIF(vap); 1586 vif = LVIF_TO_VIF(lvif); 1587 1588 IEEE80211_UNLOCK(vap->iv_ic); 1589 LKPI_80211_LHW_LOCK(lhw); 1590 1591 LKPI_80211_LVIF_LOCK(lvif); 1592 /* XXX-BZ KASSERT later? */ 1593 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1594 #ifdef LINUXKPI_DEBUG_80211 1595 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1596 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1597 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1598 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1599 lvif->lvif_bss_synched); 1600 #endif 1601 error = ENOTRECOVERABLE; 1602 LKPI_80211_LVIF_UNLOCK(lvif); 1603 goto out; 1604 } 1605 lsta = lvif->lvif_bss; 1606 LKPI_80211_LVIF_UNLOCK(lvif); 1607 1608 KASSERT(lsta != NULL, ("%s: lsta %p\n", __func__, lsta)); 1609 1610 /* Finish auth. */ 1611 IMPROVE("event callback"); 1612 1613 /* Update sta_state (NONE to AUTH). */ 1614 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1615 "NONE: %#x\n", __func__, lsta, lsta->state)); 1616 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1617 if (error != 0) { 1618 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1619 "failed: %d\n", __func__, __LINE__, error); 1620 goto out; 1621 } 1622 1623 /* End mgd_complete_tx. */ 1624 if (lsta->in_mgd) { 1625 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1626 prep_tx_info.success = true; 1627 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1628 lsta->in_mgd = false; 1629 } 1630 1631 /* Now start assoc. */ 1632 1633 /* Start mgd_prepare_tx. */ 1634 if (!lsta->in_mgd) { 1635 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1636 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1637 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1638 lsta->in_mgd = true; 1639 } 1640 1641 /* Wake tx queue to get packet out. */ 1642 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, true); 1643 1644 /* 1645 * <twiddle> .. we end up in "assoc_to_run" 1646 * - update sta_state (AUTH to ASSOC) 1647 * - conf_tx [all] 1648 * - bss_info_changed (assoc, aid, ssid, ..) 1649 * - change_chanctx (if needed) 1650 * - event_callback 1651 * - mgd_complete_tx 1652 */ 1653 1654 out: 1655 LKPI_80211_LHW_UNLOCK(lhw); 1656 IEEE80211_LOCK(vap->iv_ic); 1657 return (error); 1658 } 1659 1660 /* auth_to_auth, assoc_to_assoc. */ 1661 static int 1662 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1663 { 1664 struct lkpi_hw *lhw; 1665 struct ieee80211_hw *hw; 1666 struct lkpi_vif *lvif; 1667 struct ieee80211_vif *vif; 1668 struct lkpi_sta *lsta; 1669 struct ieee80211_prep_tx_info prep_tx_info; 1670 int error; 1671 1672 lhw = vap->iv_ic->ic_softc; 1673 hw = LHW_TO_HW(lhw); 1674 lvif = VAP_TO_LVIF(vap); 1675 vif = LVIF_TO_VIF(lvif); 1676 1677 IEEE80211_UNLOCK(vap->iv_ic); 1678 LKPI_80211_LHW_LOCK(lhw); 1679 1680 LKPI_80211_LVIF_LOCK(lvif); 1681 /* XXX-BZ KASSERT later? */ 1682 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1683 #ifdef LINUXKPI_DEBUG_80211 1684 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1685 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1686 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1687 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1688 lvif->lvif_bss_synched); 1689 #endif 1690 LKPI_80211_LVIF_UNLOCK(lvif); 1691 error = ENOTRECOVERABLE; 1692 goto out; 1693 } 1694 lsta = lvif->lvif_bss; 1695 LKPI_80211_LVIF_UNLOCK(lvif); 1696 1697 KASSERT(lsta != NULL, ("%s: lsta %p! lvif %p vap %p\n", __func__, 1698 lsta, lvif, vap)); 1699 1700 IMPROVE("event callback?"); 1701 1702 /* End mgd_complete_tx. */ 1703 if (lsta->in_mgd) { 1704 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1705 prep_tx_info.success = false; 1706 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1707 lsta->in_mgd = false; 1708 } 1709 1710 /* Now start assoc. */ 1711 1712 /* Start mgd_prepare_tx. */ 1713 if (!lsta->in_mgd) { 1714 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1715 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1716 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1717 lsta->in_mgd = true; 1718 } 1719 1720 error = 0; 1721 out: 1722 LKPI_80211_LHW_UNLOCK(lhw); 1723 IEEE80211_LOCK(vap->iv_ic); 1724 1725 return (error); 1726 } 1727 1728 static int 1729 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1730 { 1731 struct lkpi_hw *lhw; 1732 struct ieee80211_hw *hw; 1733 struct lkpi_vif *lvif; 1734 struct ieee80211_vif *vif; 1735 struct ieee80211_node *ni; 1736 struct lkpi_sta *lsta; 1737 struct ieee80211_sta *sta; 1738 struct ieee80211_prep_tx_info prep_tx_info; 1739 enum ieee80211_bss_changed bss_changed; 1740 int error; 1741 1742 lhw = vap->iv_ic->ic_softc; 1743 hw = LHW_TO_HW(lhw); 1744 lvif = VAP_TO_LVIF(vap); 1745 vif = LVIF_TO_VIF(lvif); 1746 1747 IEEE80211_UNLOCK(vap->iv_ic); 1748 LKPI_80211_LHW_LOCK(lhw); 1749 1750 LKPI_80211_LVIF_LOCK(lvif); 1751 #ifdef LINUXKPI_DEBUG_80211 1752 /* XXX-BZ KASSERT later; state going down so no action. */ 1753 if (lvif->lvif_bss == NULL) 1754 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1755 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1756 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1757 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1758 lvif->lvif_bss_synched); 1759 #endif 1760 lsta = lvif->lvif_bss; 1761 LKPI_80211_LVIF_UNLOCK(lvif); 1762 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1763 "lvif %p vap %p\n", __func__, 1764 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1765 1766 ni = lsta->ni; /* Reference held for lvif_bss. */ 1767 sta = LSTA_TO_STA(lsta); 1768 1769 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1770 1771 /* flush, drop. */ 1772 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1773 1774 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1775 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1776 !lsta->in_mgd) { 1777 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1778 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1779 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1780 lsta->in_mgd = true; 1781 } 1782 1783 LKPI_80211_LHW_UNLOCK(lhw); 1784 IEEE80211_LOCK(vap->iv_ic); 1785 1786 /* Call iv_newstate first so we get potential DEAUTH packet out. */ 1787 error = lvif->iv_newstate(vap, nstate, arg); 1788 if (error != 0) { 1789 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1790 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1791 goto outni; 1792 } 1793 1794 IEEE80211_UNLOCK(vap->iv_ic); 1795 1796 /* Ensure the packets get out. */ 1797 lkpi_80211_flush_tx(lhw, lsta); 1798 1799 LKPI_80211_LHW_LOCK(lhw); 1800 1801 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1802 1803 /* Wake tx queues to get packet(s) out. */ 1804 lkpi_wake_tx_queues(hw, sta, false, true); 1805 1806 /* flush, no drop */ 1807 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1808 1809 /* End mgd_complete_tx. */ 1810 if (lsta->in_mgd) { 1811 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1812 prep_tx_info.success = false; 1813 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1814 lsta->in_mgd = false; 1815 } 1816 1817 /* sync_rx_queues */ 1818 lkpi_80211_mo_sync_rx_queues(hw); 1819 1820 /* sta_pre_rcu_remove */ 1821 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1822 1823 /* Take the station down. */ 1824 1825 /* Update sta and change state (from AUTH) to NONE. */ 1826 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1827 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1828 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1829 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1830 if (error != 0) { 1831 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1832 "failed: %d\n", __func__, __LINE__, error); 1833 goto out; 1834 } 1835 1836 /* See comment in lkpi_sta_run_to_init(). */ 1837 bss_changed = 0; 1838 bss_changed |= lkpi_disassoc(sta, vif, lhw); 1839 1840 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1841 1842 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1843 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1844 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1845 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1846 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1847 if (error != 0) { 1848 IMPROVE("do we need to undo the chan ctx?"); 1849 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1850 "failed: %d\n", __func__, __LINE__, error); 1851 goto out; 1852 } 1853 1854 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1855 1856 IMPROVE("Any bss_info changes to announce?"); 1857 vif->bss_conf.qos = 0; 1858 bss_changed |= BSS_CHANGED_QOS; 1859 vif->cfg.ssid_len = 0; 1860 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1861 bss_changed |= BSS_CHANGED_BSSID; 1862 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1863 1864 LKPI_80211_LVIF_LOCK(lvif); 1865 /* Remove ni reference for this cache of lsta. */ 1866 lvif->lvif_bss = NULL; 1867 lvif->lvif_bss_synched = false; 1868 LKPI_80211_LVIF_UNLOCK(lvif); 1869 lkpi_lsta_remove(lsta, lvif); 1870 /* 1871 * The very last release the reference on the ni for the ni/lsta on 1872 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1873 * and potentially freed. 1874 */ 1875 ieee80211_free_node(ni); 1876 1877 /* conf_tx */ 1878 1879 /* Take the chan ctx down. */ 1880 if (vif->chanctx_conf != NULL) { 1881 struct lkpi_chanctx *lchanctx; 1882 struct ieee80211_chanctx_conf *chanctx_conf; 1883 1884 chanctx_conf = vif->chanctx_conf; 1885 /* Remove vif context. */ 1886 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1887 /* NB: vif->chanctx_conf is NULL now. */ 1888 1889 lkpi_hw_conf_idle(hw, true); 1890 1891 /* Remove chan ctx. */ 1892 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1893 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1894 free(lchanctx, M_LKPI80211); 1895 } 1896 1897 error = EALREADY; 1898 out: 1899 LKPI_80211_LHW_UNLOCK(lhw); 1900 IEEE80211_LOCK(vap->iv_ic); 1901 outni: 1902 return (error); 1903 } 1904 1905 static int 1906 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1907 { 1908 int error; 1909 1910 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1911 if (error != 0 && error != EALREADY) 1912 return (error); 1913 1914 /* At this point iv_bss is long a new node! */ 1915 1916 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1917 return (error); 1918 } 1919 1920 static int 1921 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1922 { 1923 int error; 1924 1925 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1926 return (error); 1927 } 1928 1929 static int 1930 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1931 { 1932 int error; 1933 1934 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1935 return (error); 1936 } 1937 1938 static int 1939 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1940 { 1941 struct lkpi_hw *lhw; 1942 struct ieee80211_hw *hw; 1943 struct lkpi_vif *lvif; 1944 struct ieee80211_vif *vif; 1945 struct ieee80211_node *ni; 1946 struct lkpi_sta *lsta; 1947 struct ieee80211_sta *sta; 1948 struct ieee80211_prep_tx_info prep_tx_info; 1949 enum ieee80211_bss_changed bss_changed; 1950 int error; 1951 1952 lhw = vap->iv_ic->ic_softc; 1953 hw = LHW_TO_HW(lhw); 1954 lvif = VAP_TO_LVIF(vap); 1955 vif = LVIF_TO_VIF(lvif); 1956 1957 IEEE80211_UNLOCK(vap->iv_ic); 1958 LKPI_80211_LHW_LOCK(lhw); 1959 1960 LKPI_80211_LVIF_LOCK(lvif); 1961 /* XXX-BZ KASSERT later? */ 1962 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1963 #ifdef LINUXKPI_DEBUG_80211 1964 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1965 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1966 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1967 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1968 lvif->lvif_bss_synched); 1969 #endif 1970 LKPI_80211_LVIF_UNLOCK(lvif); 1971 error = ENOTRECOVERABLE; 1972 goto out; 1973 } 1974 lsta = lvif->lvif_bss; 1975 LKPI_80211_LVIF_UNLOCK(lvif); 1976 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1977 "lvif %p vap %p\n", __func__, 1978 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1979 1980 ni = lsta->ni; /* Reference held for lvif_bss. */ 1981 1982 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1983 "and to lesser extend ieee80211_notify_node_join"); 1984 1985 /* Finish assoc. */ 1986 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1987 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1988 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1989 sta = LSTA_TO_STA(lsta); 1990 sta->aid = IEEE80211_NODE_AID(ni); 1991 #ifdef LKPI_80211_WME 1992 if (vap->iv_flags & IEEE80211_F_WME) 1993 sta->wme = true; 1994 #endif 1995 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1996 if (error != 0) { 1997 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1998 "failed: %d\n", __func__, __LINE__, error); 1999 goto out; 2000 } 2001 2002 IMPROVE("wme / conf_tx [all]"); 2003 2004 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2005 bss_changed = 0; 2006 #ifdef LKPI_80211_WME 2007 bss_changed |= lkpi_wme_update(lhw, vap, true); 2008 #endif 2009 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 2010 vif->cfg.assoc = true; 2011 vif->cfg.aid = IEEE80211_NODE_AID(ni); 2012 bss_changed |= BSS_CHANGED_ASSOC; 2013 } 2014 /* We set SSID but this is not BSSID! */ 2015 vif->cfg.ssid_len = ni->ni_esslen; 2016 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 2017 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 2018 vif->bss_conf.use_short_preamble) { 2019 vif->bss_conf.use_short_preamble ^= 1; 2020 /* bss_changed |= BSS_CHANGED_??? */ 2021 } 2022 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 2023 vif->bss_conf.use_short_slot) { 2024 vif->bss_conf.use_short_slot ^= 1; 2025 /* bss_changed |= BSS_CHANGED_??? */ 2026 } 2027 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 2028 vif->bss_conf.qos) { 2029 vif->bss_conf.qos ^= 1; 2030 bss_changed |= BSS_CHANGED_QOS; 2031 } 2032 2033 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2034 2035 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2036 2037 /* - change_chanctx (if needed) 2038 * - event_callback 2039 */ 2040 2041 /* End mgd_complete_tx. */ 2042 if (lsta->in_mgd) { 2043 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2044 prep_tx_info.success = true; 2045 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2046 lsta->in_mgd = false; 2047 } 2048 2049 lkpi_hw_conf_idle(hw, false); 2050 2051 /* 2052 * And then: 2053 * - (more packets)? 2054 * - set_key 2055 * - set_default_unicast_key 2056 * - set_key (?) 2057 * - ipv6_addr_change (?) 2058 */ 2059 /* Prepare_multicast && configure_filter. */ 2060 lhw->update_mc = true; 2061 lkpi_update_mcast_filter(vap->iv_ic, true); 2062 2063 if (!ieee80211_node_is_authorized(ni)) { 2064 IMPROVE("net80211 does not consider node authorized"); 2065 } 2066 2067 #if defined(LKPI_80211_HT) 2068 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 2069 lkpi_sta_sync_ht_from_ni(sta, ni, NULL); 2070 #endif 2071 2072 /* Update sta_state (ASSOC to AUTHORIZED). */ 2073 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2074 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2075 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2076 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 2077 if (error != 0) { 2078 IMPROVE("undo some changes?"); 2079 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 2080 "failed: %d\n", __func__, __LINE__, error); 2081 goto out; 2082 } 2083 2084 /* - drv_config (?) 2085 * - bss_info_changed 2086 * - set_rekey_data (?) 2087 * 2088 * And now we should be passing packets. 2089 */ 2090 IMPROVE("Need that bssid setting, and the keys"); 2091 2092 bss_changed = 0; 2093 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2094 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2095 2096 out: 2097 LKPI_80211_LHW_UNLOCK(lhw); 2098 IEEE80211_LOCK(vap->iv_ic); 2099 return (error); 2100 } 2101 2102 static int 2103 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2104 { 2105 int error; 2106 2107 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 2108 if (error == 0) 2109 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 2110 return (error); 2111 } 2112 2113 static int 2114 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2115 { 2116 struct lkpi_hw *lhw; 2117 struct ieee80211_hw *hw; 2118 struct lkpi_vif *lvif; 2119 struct ieee80211_vif *vif; 2120 struct ieee80211_node *ni; 2121 struct lkpi_sta *lsta; 2122 struct ieee80211_sta *sta; 2123 struct ieee80211_prep_tx_info prep_tx_info; 2124 #if 0 2125 enum ieee80211_bss_changed bss_changed; 2126 #endif 2127 int error; 2128 2129 lhw = vap->iv_ic->ic_softc; 2130 hw = LHW_TO_HW(lhw); 2131 lvif = VAP_TO_LVIF(vap); 2132 vif = LVIF_TO_VIF(lvif); 2133 2134 LKPI_80211_LVIF_LOCK(lvif); 2135 #ifdef LINUXKPI_DEBUG_80211 2136 /* XXX-BZ KASSERT later; state going down so no action. */ 2137 if (lvif->lvif_bss == NULL) 2138 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2139 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2140 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2141 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2142 lvif->lvif_bss_synched); 2143 #endif 2144 lsta = lvif->lvif_bss; 2145 LKPI_80211_LVIF_UNLOCK(lvif); 2146 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2147 "lvif %p vap %p\n", __func__, 2148 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2149 2150 ni = lsta->ni; /* Reference held for lvif_bss. */ 2151 sta = LSTA_TO_STA(lsta); 2152 2153 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2154 2155 IEEE80211_UNLOCK(vap->iv_ic); 2156 LKPI_80211_LHW_LOCK(lhw); 2157 2158 /* flush, drop. */ 2159 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2160 2161 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2162 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2163 !lsta->in_mgd) { 2164 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2165 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2166 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2167 lsta->in_mgd = true; 2168 } 2169 2170 LKPI_80211_LHW_UNLOCK(lhw); 2171 IEEE80211_LOCK(vap->iv_ic); 2172 2173 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2174 error = lvif->iv_newstate(vap, nstate, arg); 2175 if (error != 0) { 2176 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2177 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2178 goto outni; 2179 } 2180 2181 IEEE80211_UNLOCK(vap->iv_ic); 2182 2183 /* Ensure the packets get out. */ 2184 lkpi_80211_flush_tx(lhw, lsta); 2185 2186 LKPI_80211_LHW_LOCK(lhw); 2187 2188 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2189 2190 /* Wake tx queues to get packet(s) out. */ 2191 lkpi_wake_tx_queues(hw, sta, false, true); 2192 2193 /* flush, no drop */ 2194 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2195 2196 /* End mgd_complete_tx. */ 2197 if (lsta->in_mgd) { 2198 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2199 prep_tx_info.success = false; 2200 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2201 lsta->in_mgd = false; 2202 } 2203 2204 #if 0 2205 /* sync_rx_queues */ 2206 lkpi_80211_mo_sync_rx_queues(hw); 2207 2208 /* sta_pre_rcu_remove */ 2209 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2210 #endif 2211 2212 /* Take the station down. */ 2213 2214 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2215 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2216 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2217 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2218 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2219 if (error != 0) { 2220 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2221 "failed: %d\n", __func__, __LINE__, error); 2222 goto out; 2223 } 2224 2225 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2226 2227 /* Update sta_state (ASSOC to AUTH). */ 2228 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2229 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2230 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2231 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2232 if (error != 0) { 2233 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2234 "failed: %d\n", __func__, __LINE__, error); 2235 goto out; 2236 } 2237 2238 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2239 2240 #if 0 2241 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2242 lkpi_disassoc(sta, vif, lhw); 2243 #endif 2244 2245 error = EALREADY; 2246 out: 2247 LKPI_80211_LHW_UNLOCK(lhw); 2248 IEEE80211_LOCK(vap->iv_ic); 2249 outni: 2250 return (error); 2251 } 2252 2253 static int 2254 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2255 { 2256 struct lkpi_hw *lhw; 2257 struct ieee80211_hw *hw; 2258 struct lkpi_vif *lvif; 2259 struct ieee80211_vif *vif; 2260 struct ieee80211_node *ni; 2261 struct lkpi_sta *lsta; 2262 struct ieee80211_sta *sta; 2263 struct ieee80211_prep_tx_info prep_tx_info; 2264 enum ieee80211_bss_changed bss_changed; 2265 int error; 2266 2267 lhw = vap->iv_ic->ic_softc; 2268 hw = LHW_TO_HW(lhw); 2269 lvif = VAP_TO_LVIF(vap); 2270 vif = LVIF_TO_VIF(lvif); 2271 2272 IEEE80211_UNLOCK(vap->iv_ic); 2273 LKPI_80211_LHW_LOCK(lhw); 2274 2275 LKPI_80211_LVIF_LOCK(lvif); 2276 #ifdef LINUXKPI_DEBUG_80211 2277 /* XXX-BZ KASSERT later; state going down so no action. */ 2278 if (lvif->lvif_bss == NULL) 2279 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2280 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2281 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2282 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2283 lvif->lvif_bss_synched); 2284 #endif 2285 lsta = lvif->lvif_bss; 2286 LKPI_80211_LVIF_UNLOCK(lvif); 2287 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2288 "lvif %p vap %p\n", __func__, 2289 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2290 2291 ni = lsta->ni; /* Reference held for lvif_bss. */ 2292 sta = LSTA_TO_STA(lsta); 2293 2294 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2295 2296 /* flush, drop. */ 2297 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2298 2299 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2300 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2301 !lsta->in_mgd) { 2302 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2303 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2304 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2305 lsta->in_mgd = true; 2306 } 2307 2308 LKPI_80211_LHW_UNLOCK(lhw); 2309 IEEE80211_LOCK(vap->iv_ic); 2310 2311 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2312 error = lvif->iv_newstate(vap, nstate, arg); 2313 if (error != 0) { 2314 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2315 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2316 goto outni; 2317 } 2318 2319 IEEE80211_UNLOCK(vap->iv_ic); 2320 2321 /* Ensure the packets get out. */ 2322 lkpi_80211_flush_tx(lhw, lsta); 2323 2324 LKPI_80211_LHW_LOCK(lhw); 2325 2326 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2327 2328 /* Wake tx queues to get packet(s) out. */ 2329 lkpi_wake_tx_queues(hw, sta, false, true); 2330 2331 /* flush, no drop */ 2332 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2333 2334 /* End mgd_complete_tx. */ 2335 if (lsta->in_mgd) { 2336 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2337 prep_tx_info.success = false; 2338 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2339 lsta->in_mgd = false; 2340 } 2341 2342 /* sync_rx_queues */ 2343 lkpi_80211_mo_sync_rx_queues(hw); 2344 2345 /* sta_pre_rcu_remove */ 2346 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2347 2348 /* Take the station down. */ 2349 2350 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2351 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2352 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2353 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2354 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2355 if (error != 0) { 2356 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2357 "failed: %d\n", __func__, __LINE__, error); 2358 goto out; 2359 } 2360 2361 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2362 2363 /* Update sta_state (ASSOC to AUTH). */ 2364 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2365 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2366 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2367 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2368 if (error != 0) { 2369 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2370 "failed: %d\n", __func__, __LINE__, error); 2371 goto out; 2372 } 2373 2374 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2375 2376 /* Update sta and change state (from AUTH) to NONE. */ 2377 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2378 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 2379 "AUTH: %#x\n", __func__, lsta, lsta->state)); 2380 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2381 if (error != 0) { 2382 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2383 "failed: %d\n", __func__, __LINE__, error); 2384 goto out; 2385 } 2386 2387 bss_changed = 0; 2388 /* 2389 * Start updating bss info (bss_info_changed) (assoc, aid, ..). 2390 * 2391 * One would expect this to happen when going off AUTHORIZED. 2392 * See comment there; removes the sta from fw if not careful 2393 * (bss_info_changed() change is executed right away). 2394 * 2395 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 2396 * as otherwise drivers (iwlwifi at least) will silently not remove 2397 * the sta from the firmware and when we will add a new one trigger 2398 * a fw assert. 2399 * 2400 * The order which works best so far avoiding early removal or silent 2401 * non-removal seems to be (for iwlwifi::mld-mac80211.c cases; 2402 * the iwlwifi:mac80211.c case still to be tested): 2403 * 1) lkpi_disassoc(): set vif->cfg.assoc = false (aid=0 side effect here) 2404 * 2) call the last sta_state update -> IEEE80211_STA_NOTEXIST 2405 * (removes the sta given assoc is false) 2406 * 3) add the remaining BSS_CHANGED changes and call bss_info_changed() 2407 * 4) call unassign_vif_chanctx 2408 * 5) call lkpi_hw_conf_idle 2409 * 6) call remove_chanctx 2410 */ 2411 bss_changed |= lkpi_disassoc(sta, vif, lhw); 2412 2413 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2414 2415 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 2416 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2417 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 2418 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 2419 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 2420 if (error != 0) { 2421 IMPROVE("do we need to undo the chan ctx?"); 2422 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 2423 "failed: %d\n", __func__, __LINE__, error); 2424 goto out; 2425 } 2426 2427 lkpi_lsta_remove(lsta, lvif); 2428 2429 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 2430 2431 IMPROVE("Any bss_info changes to announce?"); 2432 vif->bss_conf.qos = 0; 2433 bss_changed |= BSS_CHANGED_QOS; 2434 vif->cfg.ssid_len = 0; 2435 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 2436 bss_changed |= BSS_CHANGED_BSSID; 2437 vif->bss_conf.use_short_preamble = false; 2438 vif->bss_conf.qos = false; 2439 /* XXX BSS_CHANGED_???? */ 2440 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2441 2442 LKPI_80211_LVIF_LOCK(lvif); 2443 /* Remove ni reference for this cache of lsta. */ 2444 lvif->lvif_bss = NULL; 2445 lvif->lvif_bss_synched = false; 2446 LKPI_80211_LVIF_UNLOCK(lvif); 2447 /* 2448 * The very last release the reference on the ni for the ni/lsta on 2449 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 2450 * and potentially freed. 2451 */ 2452 ieee80211_free_node(ni); 2453 2454 /* conf_tx */ 2455 2456 /* Take the chan ctx down. */ 2457 if (vif->chanctx_conf != NULL) { 2458 struct lkpi_chanctx *lchanctx; 2459 struct ieee80211_chanctx_conf *chanctx_conf; 2460 2461 chanctx_conf = vif->chanctx_conf; 2462 /* Remove vif context. */ 2463 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 2464 /* NB: vif->chanctx_conf is NULL now. */ 2465 2466 lkpi_hw_conf_idle(hw, true); 2467 2468 /* Remove chan ctx. */ 2469 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2470 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2471 free(lchanctx, M_LKPI80211); 2472 } 2473 2474 error = EALREADY; 2475 out: 2476 LKPI_80211_LHW_UNLOCK(lhw); 2477 IEEE80211_LOCK(vap->iv_ic); 2478 outni: 2479 return (error); 2480 } 2481 2482 static int 2483 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2484 { 2485 2486 return (lkpi_sta_run_to_init(vap, nstate, arg)); 2487 } 2488 2489 static int 2490 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2491 { 2492 int error; 2493 2494 error = lkpi_sta_run_to_init(vap, nstate, arg); 2495 if (error != 0 && error != EALREADY) 2496 return (error); 2497 2498 /* At this point iv_bss is long a new node! */ 2499 2500 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 2501 return (error); 2502 } 2503 2504 /* -------------------------------------------------------------------------- */ 2505 2506 /* 2507 * The matches the documented state changes in net80211::sta_newstate(). 2508 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 2509 * there are "invalid" (so there is a room for failure here). 2510 */ 2511 struct fsm_state { 2512 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 2513 enum ieee80211_state ostate; 2514 enum ieee80211_state nstate; 2515 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 2516 } sta_state_fsm[] = { 2517 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 2518 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 2519 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 2520 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 2521 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 2522 2523 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2524 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2525 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 2526 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 2527 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 2528 2529 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2530 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2531 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2532 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2533 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2534 2535 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2536 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2537 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2538 2539 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2540 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2541 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2542 2543 /* Dummy at the end without handler. */ 2544 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2545 }; 2546 2547 static int 2548 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2549 { 2550 struct ieee80211com *ic; 2551 struct lkpi_hw *lhw; 2552 struct lkpi_vif *lvif; 2553 struct ieee80211_vif *vif; 2554 struct fsm_state *s; 2555 enum ieee80211_state ostate; 2556 int error; 2557 2558 ic = vap->iv_ic; 2559 IEEE80211_LOCK_ASSERT(ic); 2560 ostate = vap->iv_state; 2561 2562 #ifdef LINUXKPI_DEBUG_80211 2563 if (linuxkpi_debug_80211 & D80211_TRACE) 2564 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2565 __func__, __LINE__, vap, nstate, arg); 2566 #endif 2567 2568 if (vap->iv_opmode == IEEE80211_M_STA) { 2569 2570 lhw = ic->ic_softc; 2571 lvif = VAP_TO_LVIF(vap); 2572 vif = LVIF_TO_VIF(lvif); 2573 2574 /* No need to replicate this in most state handlers. */ 2575 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2576 lkpi_stop_hw_scan(lhw, vif); 2577 2578 s = sta_state_fsm; 2579 2580 } else { 2581 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2582 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2583 return (ENOSYS); 2584 } 2585 2586 error = 0; 2587 for (; s->handler != NULL; s++) { 2588 if (ostate == s->ostate && nstate == s->nstate) { 2589 #ifdef LINUXKPI_DEBUG_80211 2590 if (linuxkpi_debug_80211 & D80211_TRACE) 2591 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2592 " %d (%s): arg %d.\n", __func__, 2593 ostate, ieee80211_state_name[ostate], 2594 nstate, ieee80211_state_name[nstate], arg); 2595 #endif 2596 error = s->handler(vap, nstate, arg); 2597 break; 2598 } 2599 } 2600 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2601 2602 if (s->handler == NULL) { 2603 IMPROVE("turn this into a KASSERT\n"); 2604 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2605 "%d (%s) -> %d (%s)\n", __func__, 2606 ostate, ieee80211_state_name[ostate], 2607 nstate, ieee80211_state_name[nstate]); 2608 return (ENOSYS); 2609 } 2610 2611 if (error == EALREADY) { 2612 #ifdef LINUXKPI_DEBUG_80211 2613 if (linuxkpi_debug_80211 & D80211_TRACE) 2614 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2615 "%d (%s): iv_newstate already handled: %d.\n", 2616 __func__, ostate, ieee80211_state_name[ostate], 2617 nstate, ieee80211_state_name[nstate], error); 2618 #endif 2619 return (0); 2620 } 2621 2622 if (error != 0) { 2623 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2624 "%d (%s) -> %d (%s)\n", __func__, error, 2625 ostate, ieee80211_state_name[ostate], 2626 nstate, ieee80211_state_name[nstate]); 2627 return (error); 2628 } 2629 2630 #ifdef LINUXKPI_DEBUG_80211 2631 if (linuxkpi_debug_80211 & D80211_TRACE) 2632 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2633 "calling net80211 parent\n", 2634 __func__, __LINE__, vap, nstate, arg); 2635 #endif 2636 2637 return (lvif->iv_newstate(vap, nstate, arg)); 2638 } 2639 2640 /* -------------------------------------------------------------------------- */ 2641 2642 /* 2643 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2644 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2645 * new node without us knowing and thus our ni/lsta are out of sync. 2646 */ 2647 static struct ieee80211_node * 2648 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2649 { 2650 struct lkpi_vif *lvif; 2651 struct ieee80211_node *rni; 2652 2653 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2654 2655 lvif = VAP_TO_LVIF(vap); 2656 2657 LKPI_80211_LVIF_LOCK(lvif); 2658 lvif->lvif_bss_synched = false; 2659 LKPI_80211_LVIF_UNLOCK(lvif); 2660 2661 rni = lvif->iv_update_bss(vap, ni); 2662 return (rni); 2663 } 2664 2665 #ifdef LKPI_80211_WME 2666 static int 2667 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2668 { 2669 struct ieee80211com *ic; 2670 struct ieee80211_hw *hw; 2671 struct lkpi_vif *lvif; 2672 struct ieee80211_vif *vif; 2673 struct chanAccParams chp; 2674 struct wmeParams wmeparr[WME_NUM_AC]; 2675 struct ieee80211_tx_queue_params txqp; 2676 enum ieee80211_bss_changed changed; 2677 int error; 2678 uint16_t ac; 2679 2680 IMPROVE(); 2681 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2682 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2683 2684 if (vap == NULL) 2685 return (0); 2686 2687 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2688 return (0); 2689 2690 if (lhw->ops->conf_tx == NULL) 2691 return (0); 2692 2693 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2694 lhw->update_wme = true; 2695 return (0); 2696 } 2697 lhw->update_wme = false; 2698 2699 ic = lhw->ic; 2700 ieee80211_wme_ic_getparams(ic, &chp); 2701 IEEE80211_LOCK(ic); 2702 for (ac = 0; ac < WME_NUM_AC; ac++) 2703 wmeparr[ac] = chp.cap_wmeParams[ac]; 2704 IEEE80211_UNLOCK(ic); 2705 2706 hw = LHW_TO_HW(lhw); 2707 lvif = VAP_TO_LVIF(vap); 2708 vif = LVIF_TO_VIF(lvif); 2709 2710 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2711 LKPI_80211_LHW_LOCK(lhw); 2712 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2713 struct wmeParams *wmep; 2714 2715 wmep = &wmeparr[ac]; 2716 bzero(&txqp, sizeof(txqp)); 2717 txqp.cw_min = wmep->wmep_logcwmin; 2718 txqp.cw_max = wmep->wmep_logcwmax; 2719 txqp.txop = wmep->wmep_txopLimit; 2720 txqp.aifs = wmep->wmep_aifsn; 2721 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2722 if (error != 0) 2723 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2724 __func__, ac, error); 2725 } 2726 LKPI_80211_LHW_UNLOCK(lhw); 2727 changed = BSS_CHANGED_QOS; 2728 if (!planned) 2729 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2730 2731 return (changed); 2732 } 2733 #endif 2734 2735 static int 2736 lkpi_ic_wme_update(struct ieee80211com *ic) 2737 { 2738 #ifdef LKPI_80211_WME 2739 struct ieee80211vap *vap; 2740 struct lkpi_hw *lhw; 2741 2742 IMPROVE("Use the per-VAP callback in net80211."); 2743 vap = TAILQ_FIRST(&ic->ic_vaps); 2744 if (vap == NULL) 2745 return (0); 2746 2747 lhw = ic->ic_softc; 2748 2749 lkpi_wme_update(lhw, vap, false); 2750 #endif 2751 return (0); /* unused */ 2752 } 2753 2754 static struct ieee80211vap * 2755 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2756 int unit, enum ieee80211_opmode opmode, int flags, 2757 const uint8_t bssid[IEEE80211_ADDR_LEN], 2758 const uint8_t mac[IEEE80211_ADDR_LEN]) 2759 { 2760 struct lkpi_hw *lhw; 2761 struct ieee80211_hw *hw; 2762 struct lkpi_vif *lvif; 2763 struct ieee80211vap *vap; 2764 struct ieee80211_vif *vif; 2765 struct ieee80211_tx_queue_params txqp; 2766 enum ieee80211_bss_changed changed; 2767 size_t len; 2768 int error, i; 2769 uint16_t ac; 2770 2771 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2772 return (NULL); 2773 2774 lhw = ic->ic_softc; 2775 hw = LHW_TO_HW(lhw); 2776 2777 len = sizeof(*lvif); 2778 len += hw->vif_data_size; /* vif->drv_priv */ 2779 2780 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2781 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2782 TAILQ_INIT(&lvif->lsta_head); 2783 lvif->lvif_bss = NULL; 2784 lvif->lvif_bss_synched = false; 2785 vap = LVIF_TO_VAP(lvif); 2786 2787 vif = LVIF_TO_VIF(lvif); 2788 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2789 vif->p2p = false; 2790 vif->probe_req_reg = false; 2791 vif->type = lkpi_opmode_to_vif_type(opmode); 2792 lvif->wdev.iftype = vif->type; 2793 /* Need to fill in other fields as well. */ 2794 IMPROVE(); 2795 2796 /* XXX-BZ hardcoded for now! */ 2797 #if 1 2798 vif->chanctx_conf = NULL; 2799 vif->bss_conf.vif = vif; 2800 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2801 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2802 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2803 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2804 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2805 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2806 vif->bss_conf.qos = false; 2807 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2808 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2809 vif->cfg.aid = 0; 2810 vif->cfg.assoc = false; 2811 vif->cfg.idle = true; 2812 vif->cfg.ps = false; 2813 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2814 /* 2815 * We need to initialize it to something as the bss_info_changed call 2816 * will try to copy from it in iwlwifi and NULL is a panic. 2817 * We will set the proper one in scan_to_auth() before being assoc. 2818 */ 2819 vif->bss_conf.bssid = ieee80211broadcastaddr; 2820 #endif 2821 #if 0 2822 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2823 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2824 vif->bss_conf.beacon_int = ic->ic_bintval; 2825 /* iwlwifi bug. */ 2826 if (vif->bss_conf.beacon_int < 16) 2827 vif->bss_conf.beacon_int = 16; 2828 #endif 2829 2830 /* Link Config */ 2831 vif->link_conf[0] = &vif->bss_conf; 2832 for (i = 0; i < nitems(vif->link_conf); i++) { 2833 IMPROVE("more than 1 link one day"); 2834 } 2835 2836 /* Setup queue defaults; driver may override in (*add_interface). */ 2837 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2838 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2839 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2840 else if (hw->queues >= IEEE80211_NUM_ACS) 2841 vif->hw_queue[i] = i; 2842 else 2843 vif->hw_queue[i] = 0; 2844 2845 /* Initialize the queue to running. Stopped? */ 2846 lvif->hw_queue_stopped[i] = false; 2847 } 2848 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2849 2850 IMPROVE(); 2851 2852 error = lkpi_80211_mo_start(hw); 2853 if (error != 0) { 2854 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2855 mtx_destroy(&lvif->mtx); 2856 free(lvif, M_80211_VAP); 2857 return (NULL); 2858 } 2859 2860 error = lkpi_80211_mo_add_interface(hw, vif); 2861 if (error != 0) { 2862 IMPROVE(); /* XXX-BZ mo_stop()? */ 2863 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2864 mtx_destroy(&lvif->mtx); 2865 free(lvif, M_80211_VAP); 2866 return (NULL); 2867 } 2868 2869 LKPI_80211_LHW_LVIF_LOCK(lhw); 2870 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2871 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2872 2873 /* Set bss_info. */ 2874 changed = 0; 2875 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2876 2877 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2878 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2879 LKPI_80211_LHW_LOCK(lhw); 2880 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2881 2882 bzero(&txqp, sizeof(txqp)); 2883 txqp.cw_min = 15; 2884 txqp.cw_max = 1023; 2885 txqp.txop = 0; 2886 txqp.aifs = 2; 2887 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2888 if (error != 0) 2889 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2890 __func__, ac, error); 2891 } 2892 LKPI_80211_LHW_UNLOCK(lhw); 2893 changed = BSS_CHANGED_QOS; 2894 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2895 2896 /* Force MC init. */ 2897 lkpi_update_mcast_filter(ic, true); 2898 2899 IMPROVE(); 2900 2901 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2902 2903 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2904 lvif->iv_newstate = vap->iv_newstate; 2905 vap->iv_newstate = lkpi_iv_newstate; 2906 lvif->iv_update_bss = vap->iv_update_bss; 2907 vap->iv_update_bss = lkpi_iv_update_bss; 2908 2909 /* Key management. */ 2910 if (lhw->ops->set_key != NULL) { 2911 #ifdef LKPI_80211_HW_CRYPTO 2912 vap->iv_key_set = lkpi_iv_key_set; 2913 vap->iv_key_delete = lkpi_iv_key_delete; 2914 #endif 2915 } 2916 2917 #ifdef LKPI_80211_HT 2918 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 2919 #endif 2920 2921 ieee80211_ratectl_init(vap); 2922 2923 /* Complete setup. */ 2924 ieee80211_vap_attach(vap, ieee80211_media_change, 2925 ieee80211_media_status, mac); 2926 2927 if (hw->max_listen_interval == 0) 2928 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2929 hw->conf.listen_interval = hw->max_listen_interval; 2930 ic->ic_set_channel(ic); 2931 2932 /* XXX-BZ do we need to be able to update these? */ 2933 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2934 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2935 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2936 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2937 /* any others? */ 2938 IMPROVE(); 2939 2940 return (vap); 2941 } 2942 2943 void 2944 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2945 { 2946 2947 wiphy_unregister(hw->wiphy); 2948 linuxkpi_ieee80211_ifdetach(hw); 2949 2950 IMPROVE(); 2951 } 2952 2953 void 2954 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2955 { 2956 2957 TODO(); 2958 } 2959 2960 static void 2961 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2962 { 2963 struct ieee80211com *ic; 2964 struct lkpi_hw *lhw; 2965 struct ieee80211_hw *hw; 2966 struct lkpi_vif *lvif; 2967 struct ieee80211_vif *vif; 2968 2969 lvif = VAP_TO_LVIF(vap); 2970 vif = LVIF_TO_VIF(lvif); 2971 ic = vap->iv_ic; 2972 lhw = ic->ic_softc; 2973 hw = LHW_TO_HW(lhw); 2974 2975 LKPI_80211_LHW_LVIF_LOCK(lhw); 2976 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2977 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2978 2979 ieee80211_ratectl_deinit(vap); 2980 ieee80211_vap_detach(vap); 2981 2982 IMPROVE("clear up other bits in this state"); 2983 2984 lkpi_80211_mo_remove_interface(hw, vif); 2985 2986 /* Single VAP, so we can do this here. */ 2987 lkpi_80211_mo_stop(hw); 2988 2989 mtx_destroy(&lvif->mtx); 2990 free(lvif, M_80211_VAP); 2991 } 2992 2993 static void 2994 lkpi_ic_update_mcast(struct ieee80211com *ic) 2995 { 2996 2997 lkpi_update_mcast_filter(ic, false); 2998 TRACEOK(); 2999 } 3000 3001 static void 3002 lkpi_ic_update_promisc(struct ieee80211com *ic) 3003 { 3004 3005 UNIMPLEMENTED; 3006 } 3007 3008 static void 3009 lkpi_ic_update_chw(struct ieee80211com *ic) 3010 { 3011 3012 UNIMPLEMENTED; 3013 } 3014 3015 /* Start / stop device. */ 3016 static void 3017 lkpi_ic_parent(struct ieee80211com *ic) 3018 { 3019 struct lkpi_hw *lhw; 3020 #ifdef HW_START_STOP 3021 struct ieee80211_hw *hw; 3022 int error; 3023 #endif 3024 bool start_all; 3025 3026 IMPROVE(); 3027 3028 lhw = ic->ic_softc; 3029 #ifdef HW_START_STOP 3030 hw = LHW_TO_HW(lhw); 3031 #endif 3032 start_all = false; 3033 3034 /* IEEE80211_UNLOCK(ic); */ 3035 LKPI_80211_LHW_LOCK(lhw); 3036 if (ic->ic_nrunning > 0) { 3037 #ifdef HW_START_STOP 3038 error = lkpi_80211_mo_start(hw); 3039 if (error == 0) 3040 #endif 3041 start_all = true; 3042 } else { 3043 #ifdef HW_START_STOP 3044 lkpi_80211_mo_stop(hw); 3045 #endif 3046 } 3047 LKPI_80211_LHW_UNLOCK(lhw); 3048 /* IEEE80211_LOCK(ic); */ 3049 3050 if (start_all) 3051 ieee80211_start_all(ic); 3052 } 3053 3054 bool 3055 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 3056 size_t ie_ids_len) 3057 { 3058 int i; 3059 3060 for (i = 0; i < ie_ids_len; i++) { 3061 if (ie == *ie_ids) 3062 return (true); 3063 } 3064 3065 return (false); 3066 } 3067 3068 /* Return true if skipped; false if error. */ 3069 bool 3070 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 3071 { 3072 size_t x; 3073 uint8_t l; 3074 3075 x = *xp; 3076 3077 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 3078 __func__, x, ies_len, ies)); 3079 l = ies[x + 1]; 3080 x += 2 + l; 3081 3082 if (x > ies_len) 3083 return (false); 3084 3085 *xp = x; 3086 return (true); 3087 } 3088 3089 static uint8_t * 3090 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 3091 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 3092 { 3093 struct ieee80211_supported_band *supband; 3094 struct linuxkpi_ieee80211_channel *channels; 3095 struct ieee80211com *ic; 3096 const struct ieee80211_channel *chan; 3097 const struct ieee80211_rateset *rs; 3098 uint8_t *pb; 3099 int band, i; 3100 3101 ic = vap->iv_ic; 3102 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3103 if ((band_mask & (1 << band)) == 0) 3104 continue; 3105 3106 supband = hw->wiphy->bands[band]; 3107 /* 3108 * This should not happen; 3109 * band_mask is a bitmask of valid bands to scan on. 3110 */ 3111 if (supband == NULL || supband->n_channels == 0) 3112 continue; 3113 3114 /* Find a first channel to get the mode and rates from. */ 3115 channels = supband->channels; 3116 chan = NULL; 3117 for (i = 0; i < supband->n_channels; i++) { 3118 3119 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3120 continue; 3121 3122 chan = ieee80211_find_channel(ic, 3123 channels[i].center_freq, 0); 3124 if (chan != NULL) 3125 break; 3126 } 3127 3128 /* This really should not happen. */ 3129 if (chan == NULL) 3130 continue; 3131 3132 pb = p; 3133 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 3134 p = ieee80211_add_rates(p, rs); 3135 p = ieee80211_add_xrates(p, rs); 3136 3137 #if defined(LKPI_80211_HT) 3138 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 3139 struct ieee80211_channel *c; 3140 3141 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3142 vap->iv_flags_ht); 3143 p = ieee80211_add_htcap_ch(p, vap, c); 3144 } 3145 #endif 3146 #if defined(LKPI_80211_VHT) 3147 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 3148 struct ieee80211_channel *c; 3149 3150 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3151 vap->iv_flags_ht); 3152 c = ieee80211_vht_adjust_channel(ic, c, 3153 vap->iv_vht_flags); 3154 p = ieee80211_add_vhtcap_ch(p, vap, c); 3155 } 3156 #endif 3157 3158 scan_ies->ies[band] = pb; 3159 scan_ies->len[band] = p - pb; 3160 } 3161 3162 /* Add common_ies */ 3163 pb = p; 3164 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3165 vap->iv_wpa_ie != NULL) { 3166 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 3167 p += 2 + vap->iv_wpa_ie[1]; 3168 } 3169 if (vap->iv_appie_probereq != NULL) { 3170 memcpy(p, vap->iv_appie_probereq->ie_data, 3171 vap->iv_appie_probereq->ie_len); 3172 p += vap->iv_appie_probereq->ie_len; 3173 } 3174 scan_ies->common_ies = pb; 3175 scan_ies->common_ie_len = p - pb; 3176 3177 return (p); 3178 } 3179 3180 static void 3181 lkpi_ic_scan_start(struct ieee80211com *ic) 3182 { 3183 struct lkpi_hw *lhw; 3184 struct ieee80211_hw *hw; 3185 struct lkpi_vif *lvif; 3186 struct ieee80211_vif *vif; 3187 struct ieee80211_scan_state *ss; 3188 struct ieee80211vap *vap; 3189 int error; 3190 bool is_hw_scan; 3191 3192 lhw = ic->ic_softc; 3193 LKPI_80211_LHW_SCAN_LOCK(lhw); 3194 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3195 /* A scan is still running. */ 3196 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3197 return; 3198 } 3199 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3200 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3201 3202 ss = ic->ic_scan; 3203 vap = ss->ss_vap; 3204 if (vap->iv_state != IEEE80211_S_SCAN) { 3205 IMPROVE("We need to be able to scan if not in S_SCAN"); 3206 return; 3207 } 3208 3209 hw = LHW_TO_HW(lhw); 3210 if (!is_hw_scan) { 3211 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 3212 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3213 sw_scan: 3214 lvif = VAP_TO_LVIF(vap); 3215 vif = LVIF_TO_VIF(lvif); 3216 3217 if (vap->iv_state == IEEE80211_S_SCAN) 3218 lkpi_hw_conf_idle(hw, false); 3219 3220 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 3221 /* net80211::scan_start() handled PS for us. */ 3222 IMPROVE(); 3223 /* XXX Also means it is too late to flush queues? 3224 * need to check iv_sta_ps or overload? */ 3225 /* XXX want to adjust ss end time/ maxdwell? */ 3226 3227 } else { 3228 struct ieee80211_channel *c; 3229 struct ieee80211_scan_request *hw_req; 3230 struct linuxkpi_ieee80211_channel *lc, **cpp; 3231 struct cfg80211_ssid *ssids; 3232 struct cfg80211_scan_6ghz_params *s6gp; 3233 size_t chan_len, nchan, ssids_len, s6ghzlen; 3234 int band, i, ssid_count, common_ie_len; 3235 uint32_t band_mask; 3236 uint8_t *ie, *ieend; 3237 bool running; 3238 3239 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 3240 ssids_len = ssid_count * sizeof(*ssids); 3241 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 3242 3243 band_mask = 0; 3244 nchan = 0; 3245 for (i = ss->ss_next; i < ss->ss_last; i++) { 3246 nchan++; 3247 band = lkpi_net80211_chan_to_nl80211_band( 3248 ss->ss_chans[ss->ss_next + i]); 3249 band_mask |= (1 << band); 3250 } 3251 3252 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 3253 IMPROVE("individual band scans not yet supported, only scanning first band"); 3254 /* In theory net80211 should drive this. */ 3255 /* Probably we need to add local logic for now; 3256 * need to deal with scan_complete 3257 * and cancel_scan and keep local state. 3258 * Also cut the nchan down above. 3259 */ 3260 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 3261 } 3262 3263 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 3264 3265 common_ie_len = 0; 3266 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3267 vap->iv_wpa_ie != NULL) 3268 common_ie_len += vap->iv_wpa_ie[1]; 3269 if (vap->iv_appie_probereq != NULL) 3270 common_ie_len += vap->iv_appie_probereq->ie_len; 3271 3272 /* We would love to check this at an earlier stage... */ 3273 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 3274 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 3275 "wiphy->max_scan_ie_len %d\n", __func__, 3276 common_ie_len, hw->wiphy->max_scan_ie_len); 3277 } 3278 3279 hw_req = malloc(sizeof(*hw_req) + ssids_len + 3280 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 3281 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 3282 3283 hw_req->req.flags = 0; /* XXX ??? */ 3284 /* hw_req->req.wdev */ 3285 hw_req->req.wiphy = hw->wiphy; 3286 hw_req->req.no_cck = false; /* XXX */ 3287 #if 0 3288 /* This seems to pessimise default scanning behaviour. */ 3289 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 3290 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 3291 #endif 3292 #ifdef __notyet__ 3293 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 3294 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 3295 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 3296 #endif 3297 eth_broadcast_addr(hw_req->req.bssid); 3298 3299 hw_req->req.n_channels = nchan; 3300 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 3301 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 3302 for (i = 0; i < nchan; i++) { 3303 *(cpp + i) = 3304 (struct linuxkpi_ieee80211_channel *)(lc + i); 3305 } 3306 for (i = 0; i < nchan; i++) { 3307 c = ss->ss_chans[ss->ss_next + i]; 3308 3309 lc->hw_value = c->ic_ieee; 3310 lc->center_freq = c->ic_freq; /* XXX */ 3311 /* lc->flags */ 3312 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 3313 lc->max_power = c->ic_maxpower; 3314 /* lc-> ... */ 3315 lc++; 3316 } 3317 3318 hw_req->req.n_ssids = ssid_count; 3319 if (hw_req->req.n_ssids > 0) { 3320 ssids = (struct cfg80211_ssid *)lc; 3321 hw_req->req.ssids = ssids; 3322 for (i = 0; i < ssid_count; i++) { 3323 ssids->ssid_len = ss->ss_ssid[i].len; 3324 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 3325 ss->ss_ssid[i].len); 3326 ssids++; 3327 } 3328 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 3329 } else { 3330 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 3331 } 3332 3333 /* 6GHz one day. */ 3334 hw_req->req.n_6ghz_params = 0; 3335 hw_req->req.scan_6ghz_params = NULL; 3336 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 3337 /* s6gp->... */ 3338 3339 ie = ieend = (uint8_t *)s6gp; 3340 /* Copy per-band IEs, copy common IEs */ 3341 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 3342 hw_req->req.ie = ie; 3343 hw_req->req.ie_len = ieend - ie; 3344 3345 lvif = VAP_TO_LVIF(vap); 3346 vif = LVIF_TO_VIF(lvif); 3347 3348 LKPI_80211_LHW_SCAN_LOCK(lhw); 3349 /* Re-check under lock. */ 3350 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 3351 if (!running) { 3352 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 3353 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 3354 3355 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 3356 lhw->hw_req = hw_req; 3357 } 3358 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3359 if (running) { 3360 free(hw_req, M_LKPI80211); 3361 return; 3362 } 3363 3364 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 3365 if (error != 0) { 3366 ieee80211_cancel_scan(vap); 3367 3368 /* 3369 * ieee80211_scan_completed must be called in either 3370 * case of error or none. So let the free happen there 3371 * and only there. 3372 * That would be fine in theory but in practice drivers 3373 * behave differently: 3374 * ath10k does not return hw_scan until after scan_complete 3375 * and can then still return an error. 3376 * rtw88 can return 1 or -EBUSY without scan_complete 3377 * iwlwifi can return various errors before scan starts 3378 * ... 3379 * So we cannot rely on that behaviour and have to check 3380 * and balance between both code paths. 3381 */ 3382 LKPI_80211_LHW_SCAN_LOCK(lhw); 3383 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3384 free(lhw->hw_req, M_LKPI80211); 3385 lhw->hw_req = NULL; 3386 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3387 } 3388 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3389 3390 /* 3391 * XXX-SIGH magic number. 3392 * rtw88 has a magic "return 1" if offloading scan is 3393 * not possible. Fall back to sw scan in that case. 3394 */ 3395 if (error == 1) { 3396 LKPI_80211_LHW_SCAN_LOCK(lhw); 3397 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 3398 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3399 /* 3400 * XXX If we clear this now and later a driver 3401 * thinks it * can do a hw_scan again, we will 3402 * currently not re-enable it? 3403 */ 3404 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3405 ieee80211_start_scan(vap, 3406 IEEE80211_SCAN_ACTIVE | 3407 IEEE80211_SCAN_NOPICK | 3408 IEEE80211_SCAN_ONCE, 3409 IEEE80211_SCAN_FOREVER, 3410 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 3411 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 3412 vap->iv_des_nssid, vap->iv_des_ssid); 3413 goto sw_scan; 3414 } 3415 3416 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 3417 __func__, error); 3418 } 3419 } 3420 } 3421 3422 static void 3423 lkpi_ic_scan_end(struct ieee80211com *ic) 3424 { 3425 struct lkpi_hw *lhw; 3426 bool is_hw_scan; 3427 3428 lhw = ic->ic_softc; 3429 LKPI_80211_LHW_SCAN_LOCK(lhw); 3430 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 3431 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3432 return; 3433 } 3434 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3435 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3436 3437 if (!is_hw_scan) { 3438 struct ieee80211_scan_state *ss; 3439 struct ieee80211vap *vap; 3440 struct ieee80211_hw *hw; 3441 struct lkpi_vif *lvif; 3442 struct ieee80211_vif *vif; 3443 3444 ss = ic->ic_scan; 3445 vap = ss->ss_vap; 3446 hw = LHW_TO_HW(lhw); 3447 lvif = VAP_TO_LVIF(vap); 3448 vif = LVIF_TO_VIF(lvif); 3449 3450 lkpi_80211_mo_sw_scan_complete(hw, vif); 3451 3452 /* Send PS to stop buffering if n80211 does not for us? */ 3453 3454 if (vap->iv_state == IEEE80211_S_SCAN) 3455 lkpi_hw_conf_idle(hw, true); 3456 } 3457 } 3458 3459 static void 3460 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 3461 unsigned long maxdwell) 3462 { 3463 struct lkpi_hw *lhw; 3464 bool is_hw_scan; 3465 3466 lhw = ss->ss_ic->ic_softc; 3467 LKPI_80211_LHW_SCAN_LOCK(lhw); 3468 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3469 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3470 if (!is_hw_scan) 3471 lhw->ic_scan_curchan(ss, maxdwell); 3472 } 3473 3474 static void 3475 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 3476 { 3477 struct lkpi_hw *lhw; 3478 bool is_hw_scan; 3479 3480 lhw = ss->ss_ic->ic_softc; 3481 LKPI_80211_LHW_SCAN_LOCK(lhw); 3482 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3483 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3484 if (!is_hw_scan) 3485 lhw->ic_scan_mindwell(ss); 3486 } 3487 3488 static void 3489 lkpi_ic_set_channel(struct ieee80211com *ic) 3490 { 3491 struct lkpi_hw *lhw; 3492 struct ieee80211_hw *hw; 3493 struct ieee80211_channel *c; 3494 struct linuxkpi_ieee80211_channel *chan; 3495 int error; 3496 bool hw_scan_running; 3497 3498 lhw = ic->ic_softc; 3499 3500 /* If we do not support (*config)() save us the work. */ 3501 if (lhw->ops->config == NULL) 3502 return; 3503 3504 /* If we have a hw_scan running do not switch channels. */ 3505 LKPI_80211_LHW_SCAN_LOCK(lhw); 3506 hw_scan_running = 3507 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3508 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3509 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3510 if (hw_scan_running) 3511 return; 3512 3513 c = ic->ic_curchan; 3514 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3515 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3516 c, lhw->ops->config); 3517 return; 3518 } 3519 3520 chan = lkpi_find_lkpi80211_chan(lhw, c); 3521 if (chan == NULL) { 3522 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3523 c, chan); 3524 return; 3525 } 3526 3527 /* XXX max power for scanning? */ 3528 IMPROVE(); 3529 3530 hw = LHW_TO_HW(lhw); 3531 cfg80211_chandef_create(&hw->conf.chandef, chan, 3532 #ifdef LKPI_80211_HT 3533 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 3534 #endif 3535 NL80211_CHAN_NO_HT); 3536 3537 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3538 if (error != 0 && error != EOPNOTSUPP) { 3539 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3540 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3541 /* XXX should we unroll to the previous chandef? */ 3542 IMPROVE(); 3543 } else { 3544 /* Update radiotap channels as well. */ 3545 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3546 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3547 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3548 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3549 } 3550 3551 /* Currently PS is hard coded off! Not sure it belongs here. */ 3552 IMPROVE(); 3553 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3554 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3555 hw->conf.flags &= ~IEEE80211_CONF_PS; 3556 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3557 if (error != 0 && error != EOPNOTSUPP) 3558 ic_printf(ic, "ERROR: %s: config %#0x returned " 3559 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3560 error); 3561 } 3562 } 3563 3564 static struct ieee80211_node * 3565 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3566 const uint8_t mac[IEEE80211_ADDR_LEN]) 3567 { 3568 struct ieee80211com *ic; 3569 struct lkpi_hw *lhw; 3570 struct ieee80211_node *ni; 3571 struct ieee80211_hw *hw; 3572 struct lkpi_sta *lsta; 3573 3574 ic = vap->iv_ic; 3575 lhw = ic->ic_softc; 3576 3577 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3578 if (lhw->ic_node_alloc == NULL) 3579 return (NULL); 3580 3581 ni = lhw->ic_node_alloc(vap, mac); 3582 if (ni == NULL) 3583 return (NULL); 3584 3585 hw = LHW_TO_HW(lhw); 3586 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3587 if (lsta == NULL) { 3588 if (lhw->ic_node_free != NULL) 3589 lhw->ic_node_free(ni); 3590 return (NULL); 3591 } 3592 3593 return (ni); 3594 } 3595 3596 static int 3597 lkpi_ic_node_init(struct ieee80211_node *ni) 3598 { 3599 struct ieee80211com *ic; 3600 struct lkpi_hw *lhw; 3601 int error; 3602 3603 ic = ni->ni_ic; 3604 lhw = ic->ic_softc; 3605 3606 if (lhw->ic_node_init != NULL) { 3607 error = lhw->ic_node_init(ni); 3608 if (error != 0) 3609 return (error); 3610 } 3611 3612 /* XXX-BZ Sync other state over. */ 3613 IMPROVE(); 3614 3615 return (0); 3616 } 3617 3618 static void 3619 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3620 { 3621 struct ieee80211com *ic; 3622 struct lkpi_hw *lhw; 3623 3624 ic = ni->ni_ic; 3625 lhw = ic->ic_softc; 3626 3627 /* XXX-BZ remove from driver, ... */ 3628 IMPROVE(); 3629 3630 if (lhw->ic_node_cleanup != NULL) 3631 lhw->ic_node_cleanup(ni); 3632 } 3633 3634 static void 3635 lkpi_ic_node_free(struct ieee80211_node *ni) 3636 { 3637 struct ieee80211com *ic; 3638 struct lkpi_hw *lhw; 3639 struct lkpi_sta *lsta; 3640 3641 ic = ni->ni_ic; 3642 lhw = ic->ic_softc; 3643 lsta = ni->ni_drv_data; 3644 3645 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 3646 3647 /* 3648 * Pass in the original ni just in case of error we could check that 3649 * it is the same as lsta->ni. 3650 */ 3651 lkpi_lsta_free(lsta, ni); 3652 3653 if (lhw->ic_node_free != NULL) 3654 lhw->ic_node_free(ni); 3655 } 3656 3657 static int 3658 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3659 const struct ieee80211_bpf_params *params __unused) 3660 { 3661 struct lkpi_sta *lsta; 3662 3663 lsta = ni->ni_drv_data; 3664 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3665 if (!lsta->added_to_drv || !lsta->txq_ready) { 3666 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3667 /* 3668 * Free the mbuf (do NOT release ni ref for the m_pkthdr.rcvif! 3669 * ieee80211_raw_output() does that in case of error). 3670 */ 3671 m_free(m); 3672 return (ENETDOWN); 3673 } 3674 3675 /* Queue the packet and enqueue the task to handle it. */ 3676 mbufq_enqueue(&lsta->txq, m); 3677 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3678 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3679 3680 #ifdef LINUXKPI_DEBUG_80211 3681 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3682 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3683 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3684 mbufq_len(&lsta->txq)); 3685 #endif 3686 3687 return (0); 3688 } 3689 3690 static void 3691 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3692 { 3693 struct ieee80211_node *ni; 3694 #ifndef LKPI_80211_HW_CRYPTO 3695 struct ieee80211_frame *wh; 3696 #endif 3697 struct ieee80211_key *k; 3698 struct sk_buff *skb; 3699 struct ieee80211com *ic; 3700 struct lkpi_hw *lhw; 3701 struct ieee80211_hw *hw; 3702 struct lkpi_vif *lvif; 3703 struct ieee80211_vif *vif; 3704 struct ieee80211_channel *c; 3705 struct ieee80211_tx_control control; 3706 struct ieee80211_tx_info *info; 3707 struct ieee80211_sta *sta; 3708 struct ieee80211_hdr *hdr; 3709 struct lkpi_txq *ltxq; 3710 void *buf; 3711 uint8_t ac, tid; 3712 3713 M_ASSERTPKTHDR(m); 3714 #ifdef LINUXKPI_DEBUG_80211 3715 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3716 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3717 #endif 3718 3719 ni = lsta->ni; 3720 k = NULL; 3721 #ifndef LKPI_80211_HW_CRYPTO 3722 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3723 wh = mtod(m, struct ieee80211_frame *); 3724 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3725 /* Retrieve key for TX && do software encryption. */ 3726 k = ieee80211_crypto_encap(ni, m); 3727 if (k == NULL) { 3728 ieee80211_free_node(ni); 3729 m_freem(m); 3730 return; 3731 } 3732 } 3733 #endif 3734 3735 ic = ni->ni_ic; 3736 lhw = ic->ic_softc; 3737 hw = LHW_TO_HW(lhw); 3738 c = ni->ni_chan; 3739 3740 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3741 struct lkpi_radiotap_tx_hdr *rtap; 3742 3743 rtap = &lhw->rtap_tx; 3744 rtap->wt_flags = 0; 3745 if (k != NULL) 3746 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3747 if (m->m_flags & M_FRAG) 3748 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3749 IMPROVE(); 3750 rtap->wt_rate = 0; 3751 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3752 rtap->wt_chan_freq = htole16(c->ic_freq); 3753 rtap->wt_chan_flags = htole16(c->ic_flags); 3754 } 3755 3756 ieee80211_radiotap_tx(ni->ni_vap, m); 3757 } 3758 3759 /* 3760 * net80211 should handle hw->extra_tx_headroom. 3761 * Though for as long as we are copying we don't mind. 3762 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3763 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3764 */ 3765 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3766 if (skb == NULL) { 3767 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3768 ieee80211_free_node(ni); 3769 m_freem(m); 3770 return; 3771 } 3772 skb_reserve(skb, hw->extra_tx_headroom); 3773 3774 /* XXX-BZ we need a SKB version understanding mbuf. */ 3775 /* Save the mbuf for ieee80211_tx_complete(). */ 3776 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3777 skb->m = m; 3778 #if 0 3779 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3780 #else 3781 buf = skb_put(skb, m->m_pkthdr.len); 3782 m_copydata(m, 0, m->m_pkthdr.len, buf); 3783 #endif 3784 /* Save the ni. */ 3785 m->m_pkthdr.PH_loc.ptr = ni; 3786 3787 lvif = VAP_TO_LVIF(ni->ni_vap); 3788 vif = LVIF_TO_VIF(lvif); 3789 3790 hdr = (void *)skb->data; 3791 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3792 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3793 if (!ieee80211_is_data(hdr->frame_control)) { 3794 /* MGMT and CTRL frames go on TID 7/VO. */ 3795 skb->priority = 7; 3796 ac = IEEE80211_AC_VO; 3797 } else { 3798 /* Other non-QOS traffic goes to BE. */ 3799 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 3800 skb->priority = 0; 3801 ac = IEEE80211_AC_BE; 3802 } 3803 } else { 3804 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3805 ac = ieee80211e_up_to_ac[tid & 7]; 3806 } 3807 skb_set_queue_mapping(skb, ac); 3808 3809 info = IEEE80211_SKB_CB(skb); 3810 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3811 /* Slight delay; probably only happens on scanning so fine? */ 3812 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3813 c = ic->ic_curchan; 3814 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3815 info->hw_queue = vif->hw_queue[ac]; 3816 if (m->m_flags & M_EAPOL) 3817 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3818 info->control.vif = vif; 3819 /* XXX-BZ info->control.rates */ 3820 #ifdef __notyet__ 3821 #ifdef LKPI_80211_HT 3822 info->control.rts_cts_rate_idx= 3823 info->control.use_rts= /* RTS */ 3824 info->control.use_cts_prot= /* RTS/CTS*/ 3825 #endif 3826 #endif 3827 3828 sta = LSTA_TO_STA(lsta); 3829 #ifdef LKPI_80211_HW_CRYPTO 3830 info->control.hw_key = lsta->kc; 3831 #endif 3832 3833 IMPROVE(); 3834 3835 ltxq = NULL; 3836 if (!ieee80211_is_data_present(hdr->frame_control)) { 3837 if (vif->type == NL80211_IFTYPE_STATION && 3838 lsta->added_to_drv && 3839 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3840 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3841 } else if (lsta->added_to_drv && 3842 sta->txq[skb->priority] != NULL) { 3843 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3844 } 3845 if (ltxq == NULL) 3846 goto ops_tx; 3847 3848 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3849 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3850 3851 LKPI_80211_LTXQ_LOCK(ltxq); 3852 skb_queue_tail(<xq->skbq, skb); 3853 #ifdef LINUXKPI_DEBUG_80211 3854 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3855 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3856 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3857 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3858 __func__, __LINE__, 3859 curthread->td_tid, (unsigned int)ticks, 3860 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3861 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3862 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3863 #endif 3864 LKPI_80211_LTXQ_UNLOCK(ltxq); 3865 LKPI_80211_LHW_LOCK(lhw); 3866 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3867 LKPI_80211_LHW_UNLOCK(lhw); 3868 return; 3869 3870 ops_tx: 3871 #ifdef LINUXKPI_DEBUG_80211 3872 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3873 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3874 "TX ac %d prio %u qmap %u\n", 3875 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3876 skb, ac, skb->priority, skb->qmap); 3877 #endif 3878 memset(&control, 0, sizeof(control)); 3879 control.sta = sta; 3880 LKPI_80211_LHW_LOCK(lhw); 3881 lkpi_80211_mo_tx(hw, &control, skb); 3882 LKPI_80211_LHW_UNLOCK(lhw); 3883 } 3884 3885 static void 3886 lkpi_80211_txq_task(void *ctx, int pending) 3887 { 3888 struct lkpi_sta *lsta; 3889 struct mbufq mq; 3890 struct mbuf *m; 3891 bool shall_tx; 3892 3893 lsta = ctx; 3894 3895 #ifdef LINUXKPI_DEBUG_80211 3896 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3897 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3898 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3899 pending, mbufq_len(&lsta->txq)); 3900 #endif 3901 3902 mbufq_init(&mq, IFQ_MAXLEN); 3903 3904 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3905 /* 3906 * Do not re-check lsta->txq_ready here; we may have a pending 3907 * disassoc/deauth frame still. On the contrary if txq_ready is 3908 * false we do not have a valid sta anymore in the firmware so no 3909 * point to try to TX. 3910 * We also use txq_ready as a semaphore and will drain the txq manually 3911 * if needed on our way towards SCAN/INIT in the state machine. 3912 */ 3913 shall_tx = lsta->added_to_drv && lsta->txq_ready; 3914 if (__predict_true(shall_tx)) 3915 mbufq_concat(&mq, &lsta->txq); 3916 /* 3917 * else a state change will push the packets out manually or 3918 * lkpi_lsta_free() will drain the lsta->txq and free the mbufs. 3919 */ 3920 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3921 3922 m = mbufq_dequeue(&mq); 3923 while (m != NULL) { 3924 lkpi_80211_txq_tx_one(lsta, m); 3925 m = mbufq_dequeue(&mq); 3926 } 3927 } 3928 3929 static int 3930 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3931 { 3932 3933 /* XXX TODO */ 3934 IMPROVE(); 3935 3936 /* Quick and dirty cheating hack. */ 3937 struct ieee80211_node *ni; 3938 3939 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3940 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3941 } 3942 3943 #ifdef LKPI_80211_HT 3944 static int 3945 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3946 const uint8_t *frm, const uint8_t *efrm) 3947 { 3948 struct ieee80211com *ic; 3949 struct lkpi_hw *lhw; 3950 3951 ic = ni->ni_ic; 3952 lhw = ic->ic_softc; 3953 3954 IMPROVE_HT(); 3955 3956 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 3957 } 3958 3959 static int 3960 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 3961 { 3962 struct ieee80211com *ic; 3963 struct lkpi_hw *lhw; 3964 3965 ic = ni->ni_ic; 3966 lhw = ic->ic_softc; 3967 3968 IMPROVE_HT(); 3969 3970 return (lhw->ic_send_action(ni, category, action, sa)); 3971 } 3972 3973 3974 static int 3975 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3976 { 3977 struct ieee80211com *ic; 3978 struct lkpi_hw *lhw; 3979 3980 ic = ni->ni_ic; 3981 lhw = ic->ic_softc; 3982 3983 IMPROVE_HT(); 3984 3985 return (lhw->ic_ampdu_enable(ni, tap)); 3986 } 3987 3988 static int 3989 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3990 int dialogtoken, int baparamset, int batimeout) 3991 { 3992 struct ieee80211com *ic; 3993 struct lkpi_hw *lhw; 3994 3995 ic = ni->ni_ic; 3996 lhw = ic->ic_softc; 3997 3998 IMPROVE_HT(); 3999 4000 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 4001 } 4002 4003 static int 4004 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4005 int status, int baparamset, int batimeout) 4006 { 4007 struct ieee80211com *ic; 4008 struct lkpi_hw *lhw; 4009 4010 ic = ni->ni_ic; 4011 lhw = ic->ic_softc; 4012 4013 IMPROVE_HT(); 4014 4015 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 4016 } 4017 4018 static void 4019 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4020 { 4021 struct ieee80211com *ic; 4022 struct lkpi_hw *lhw; 4023 4024 ic = ni->ni_ic; 4025 lhw = ic->ic_softc; 4026 4027 IMPROVE_HT(); 4028 4029 lhw->ic_addba_stop(ni, tap); 4030 } 4031 4032 static void 4033 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4034 { 4035 struct ieee80211com *ic; 4036 struct lkpi_hw *lhw; 4037 4038 ic = ni->ni_ic; 4039 lhw = ic->ic_softc; 4040 4041 IMPROVE_HT(); 4042 4043 lhw->ic_addba_response_timeout(ni, tap); 4044 } 4045 4046 static void 4047 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4048 int status) 4049 { 4050 struct ieee80211com *ic; 4051 struct lkpi_hw *lhw; 4052 4053 ic = ni->ni_ic; 4054 lhw = ic->ic_softc; 4055 4056 IMPROVE_HT(); 4057 4058 lhw->ic_bar_response(ni, tap, status); 4059 } 4060 4061 static int 4062 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 4063 int baparamset, int batimeout, int baseqctl) 4064 { 4065 struct ieee80211com *ic; 4066 struct lkpi_hw *lhw; 4067 struct ieee80211_hw *hw; 4068 struct ieee80211vap *vap; 4069 struct lkpi_vif *lvif; 4070 struct ieee80211_vif *vif; 4071 struct lkpi_sta *lsta; 4072 struct ieee80211_sta *sta; 4073 struct ieee80211_ampdu_params params; 4074 int error; 4075 4076 ic = ni->ni_ic; 4077 lhw = ic->ic_softc; 4078 hw = LHW_TO_HW(lhw); 4079 vap = ni->ni_vap; 4080 lvif = VAP_TO_LVIF(vap); 4081 vif = LVIF_TO_VIF(lvif); 4082 lsta = ni->ni_drv_data; 4083 sta = LSTA_TO_STA(lsta); 4084 4085 params.sta = sta; 4086 params.action = IEEE80211_AMPDU_RX_START; 4087 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 4088 if (params.buf_size == 0) 4089 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 4090 else 4091 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 4092 if (params.buf_size > hw->max_rx_aggregation_subframes) 4093 params.buf_size = hw->max_rx_aggregation_subframes; 4094 params.timeout = le16toh(batimeout); 4095 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 4096 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 4097 params.amsdu = false; 4098 4099 IMPROVE_HT("Do we need to distinguish based on SUPPORTS_REORDERING_BUFFER?"); 4100 4101 /* This may call kalloc. Make sure we can sleep. */ 4102 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4103 if (error != 0) { 4104 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4105 __func__, error, ni, rap); 4106 return (error); 4107 } 4108 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 4109 4110 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 4111 return (error); 4112 } 4113 4114 static void 4115 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 4116 { 4117 struct ieee80211com *ic; 4118 struct lkpi_hw *lhw; 4119 struct ieee80211_hw *hw; 4120 struct ieee80211vap *vap; 4121 struct lkpi_vif *lvif; 4122 struct ieee80211_vif *vif; 4123 struct lkpi_sta *lsta; 4124 struct ieee80211_sta *sta; 4125 struct ieee80211_ampdu_params params; 4126 int error; 4127 uint8_t tid; 4128 4129 ic = ni->ni_ic; 4130 lhw = ic->ic_softc; 4131 4132 /* 4133 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 4134 * we did not START. Some drivers pass it down to firmware which will 4135 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 4136 * ieee80211_ht_node_init() amongst others which will iterate over all 4137 * tid and call ic_ampdu_rx_stop() unconditionally. 4138 * XXX net80211 should probably be more "gentle" in these cases and 4139 * track some state itself. 4140 */ 4141 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 4142 goto net80211_only; 4143 4144 hw = LHW_TO_HW(lhw); 4145 vap = ni->ni_vap; 4146 lvif = VAP_TO_LVIF(vap); 4147 vif = LVIF_TO_VIF(lvif); 4148 lsta = ni->ni_drv_data; 4149 sta = LSTA_TO_STA(lsta); 4150 4151 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 4152 for (tid = 0; tid < WME_NUM_TID; tid++) { 4153 if (&ni->ni_rx_ampdu[tid] == rap) 4154 break; 4155 } 4156 4157 params.sta = sta; 4158 params.action = IEEE80211_AMPDU_RX_STOP; 4159 params.buf_size = 0; 4160 params.timeout = 0; 4161 params.ssn = 0; 4162 params.tid = tid; 4163 params.amsdu = false; 4164 4165 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4166 if (error != 0) 4167 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4168 __func__, error, ni, rap); 4169 4170 net80211_only: 4171 lhw->ic_ampdu_rx_stop(ni, rap); 4172 } 4173 #endif 4174 4175 static void 4176 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 4177 uint8_t *bands, int *chan_flags, enum nl80211_band band) 4178 { 4179 #ifdef LKPI_80211_HT 4180 struct ieee80211_sta_ht_cap *ht_cap; 4181 4182 ht_cap = &hw->wiphy->bands[band]->ht_cap; 4183 if (!ht_cap->ht_supported) 4184 return; 4185 4186 switch (band) { 4187 case NL80211_BAND_2GHZ: 4188 setbit(bands, IEEE80211_MODE_11NG); 4189 break; 4190 case NL80211_BAND_5GHZ: 4191 setbit(bands, IEEE80211_MODE_11NA); 4192 break; 4193 default: 4194 IMPROVE("Unsupported band %d", band); 4195 return; 4196 } 4197 4198 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 4199 4200 /* 4201 * Rather than manually checking each flag and 4202 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 4203 * simply copy the 16bits. 4204 */ 4205 ic->ic_htcaps |= ht_cap->cap; 4206 4207 /* Then deal with the other flags. */ 4208 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 4209 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 4210 #ifdef __notyet__ 4211 if (ieee80211_hw_check(hw, TX_AMSDU)) 4212 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 4213 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 4214 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 4215 IEEE80211_HTC_TX_AMSDU_AMPDU); 4216 #endif 4217 4218 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 4219 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_OFF; 4220 4221 /* Only add HT40 channels if supported. */ 4222 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 4223 chan_flags != NULL) 4224 *chan_flags |= NET80211_CBW_FLAG_HT40; 4225 #endif 4226 } 4227 4228 static void 4229 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 4230 int *n, struct ieee80211_channel *c) 4231 { 4232 struct lkpi_hw *lhw; 4233 struct ieee80211_hw *hw; 4234 struct linuxkpi_ieee80211_channel *channels; 4235 uint8_t bands[IEEE80211_MODE_BYTES]; 4236 int chan_flags, error, i, nchans; 4237 4238 /* Channels */ 4239 lhw = ic->ic_softc; 4240 hw = LHW_TO_HW(lhw); 4241 4242 /* NL80211_BAND_2GHZ */ 4243 nchans = 0; 4244 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 4245 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 4246 if (nchans > 0) { 4247 memset(bands, 0, sizeof(bands)); 4248 chan_flags = 0; 4249 setbit(bands, IEEE80211_MODE_11B); 4250 /* XXX-BZ unclear how to check for 11g. */ 4251 4252 IMPROVE("the bitrates may have flags?"); 4253 setbit(bands, IEEE80211_MODE_11G); 4254 4255 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4256 NL80211_BAND_2GHZ); 4257 4258 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 4259 for (i = 0; i < nchans && *n < maxchan; i++) { 4260 uint32_t nflags = 0; 4261 int cflags = chan_flags; 4262 4263 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4264 ic_printf(ic, "%s: Skipping disabled chan " 4265 "[%u/%u/%#x]\n", __func__, 4266 channels[i].hw_value, 4267 channels[i].center_freq, channels[i].flags); 4268 continue; 4269 } 4270 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4271 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4272 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4273 nflags |= IEEE80211_CHAN_DFS; 4274 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4275 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4276 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4277 cflags &= ~NET80211_CBW_FLAG_VHT80; 4278 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 4279 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4280 cflags &= ~NET80211_CBW_FLAG_HT40; 4281 4282 error = ieee80211_add_channel_cbw(c, maxchan, n, 4283 channels[i].hw_value, channels[i].center_freq, 4284 channels[i].max_power, 4285 nflags, bands, cflags); 4286 /* net80211::ENOBUFS: *n >= maxchans */ 4287 if (error != 0 && error != ENOBUFS) 4288 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4289 "returned error %d\n", 4290 __func__, channels[i].hw_value, 4291 channels[i].center_freq, channels[i].flags, 4292 nflags, chan_flags, cflags, error); 4293 if (error != 0) 4294 break; 4295 } 4296 } 4297 4298 /* NL80211_BAND_5GHZ */ 4299 nchans = 0; 4300 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 4301 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 4302 if (nchans > 0) { 4303 memset(bands, 0, sizeof(bands)); 4304 chan_flags = 0; 4305 setbit(bands, IEEE80211_MODE_11A); 4306 4307 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4308 NL80211_BAND_5GHZ); 4309 4310 #ifdef LKPI_80211_VHT 4311 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 4312 4313 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 4314 ic->ic_vht_cap.vht_cap_info = 4315 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 4316 4317 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 4318 chan_flags |= NET80211_CBW_FLAG_VHT80; 4319 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 4320 ic->ic_vht_cap.vht_cap_info)) 4321 chan_flags |= NET80211_CBW_FLAG_VHT160; 4322 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 4323 ic->ic_vht_cap.vht_cap_info)) 4324 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 4325 } 4326 #endif 4327 4328 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 4329 for (i = 0; i < nchans && *n < maxchan; i++) { 4330 uint32_t nflags = 0; 4331 int cflags = chan_flags; 4332 4333 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4334 ic_printf(ic, "%s: Skipping disabled chan " 4335 "[%u/%u/%#x]\n", __func__, 4336 channels[i].hw_value, 4337 channels[i].center_freq, channels[i].flags); 4338 continue; 4339 } 4340 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4341 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4342 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4343 nflags |= IEEE80211_CHAN_DFS; 4344 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4345 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4346 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4347 cflags &= ~NET80211_CBW_FLAG_VHT80; 4348 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 4349 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4350 cflags &= ~NET80211_CBW_FLAG_HT40; 4351 4352 error = ieee80211_add_channel_cbw(c, maxchan, n, 4353 channels[i].hw_value, channels[i].center_freq, 4354 channels[i].max_power, 4355 nflags, bands, cflags); 4356 /* net80211::ENOBUFS: *n >= maxchans */ 4357 if (error != 0 && error != ENOBUFS) 4358 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4359 "returned error %d\n", 4360 __func__, channels[i].hw_value, 4361 channels[i].center_freq, channels[i].flags, 4362 nflags, chan_flags, cflags, error); 4363 if (error != 0) 4364 break; 4365 } 4366 } 4367 } 4368 4369 static void * 4370 lkpi_ieee80211_ifalloc(void) 4371 { 4372 struct ieee80211com *ic; 4373 4374 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 4375 if (ic == NULL) 4376 return (NULL); 4377 4378 /* Setting these happens later when we have device information. */ 4379 ic->ic_softc = NULL; 4380 ic->ic_name = "linuxkpi"; 4381 4382 return (ic); 4383 } 4384 4385 struct ieee80211_hw * 4386 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 4387 { 4388 struct ieee80211_hw *hw; 4389 struct lkpi_hw *lhw; 4390 struct wiphy *wiphy; 4391 int ac; 4392 4393 /* Get us and the driver data also allocated. */ 4394 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 4395 if (wiphy == NULL) 4396 return (NULL); 4397 4398 lhw = wiphy_priv(wiphy); 4399 lhw->ops = ops; 4400 4401 LKPI_80211_LHW_LOCK_INIT(lhw); 4402 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 4403 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 4404 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 4405 TAILQ_INIT(&lhw->lvif_head); 4406 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4407 lhw->txq_generation[ac] = 1; 4408 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 4409 } 4410 4411 /* Deferred RX path. */ 4412 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 4413 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 4414 mbufq_init(&lhw->rxq, IFQ_MAXLEN); 4415 lhw->rxq_stopped = false; 4416 4417 /* 4418 * XXX-BZ TODO make sure there is a "_null" function to all ops 4419 * not initialized. 4420 */ 4421 hw = LHW_TO_HW(lhw); 4422 hw->wiphy = wiphy; 4423 hw->conf.flags |= IEEE80211_CONF_IDLE; 4424 hw->priv = (void *)(lhw + 1); 4425 4426 /* BSD Specific. */ 4427 lhw->ic = lkpi_ieee80211_ifalloc(); 4428 if (lhw->ic == NULL) { 4429 ieee80211_free_hw(hw); 4430 return (NULL); 4431 } 4432 4433 IMPROVE(); 4434 4435 return (hw); 4436 } 4437 4438 void 4439 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 4440 { 4441 struct lkpi_hw *lhw; 4442 struct mbuf *m; 4443 4444 lhw = HW_TO_LHW(hw); 4445 free(lhw->ic, M_LKPI80211); 4446 lhw->ic = NULL; 4447 4448 /* 4449 * Drain the deferred RX path. 4450 */ 4451 LKPI_80211_LHW_RXQ_LOCK(lhw); 4452 lhw->rxq_stopped = true; 4453 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4454 4455 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 4456 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 4457 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 4458 4459 /* Flush mbufq (make sure to release ni refs!). */ 4460 m = mbufq_dequeue(&lhw->rxq); 4461 while (m != NULL) { 4462 struct m_tag *mtag; 4463 4464 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4465 if (mtag != NULL) { 4466 struct lkpi_80211_tag_rxni *rxni; 4467 4468 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4469 ieee80211_free_node(rxni->ni); 4470 } 4471 m_freem(m); 4472 m = mbufq_dequeue(&lhw->rxq); 4473 } 4474 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 4475 __func__, lhw, mbufq_len(&lhw->rxq))); 4476 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 4477 4478 /* Cleanup more of lhw here or in wiphy_free()? */ 4479 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 4480 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 4481 LKPI_80211_LHW_LOCK_DESTROY(lhw); 4482 sx_destroy(&lhw->lvif_sx); 4483 IMPROVE(); 4484 } 4485 4486 void 4487 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 4488 { 4489 struct lkpi_hw *lhw; 4490 struct ieee80211com *ic; 4491 4492 lhw = HW_TO_LHW(hw); 4493 ic = lhw->ic; 4494 4495 /* Now set a proper name before ieee80211_ifattach(). */ 4496 ic->ic_softc = lhw; 4497 ic->ic_name = name; 4498 4499 /* XXX-BZ do we also need to set wiphy name? */ 4500 } 4501 4502 struct ieee80211_hw * 4503 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 4504 { 4505 struct lkpi_hw *lhw; 4506 4507 lhw = wiphy_priv(wiphy); 4508 return (LHW_TO_HW(lhw)); 4509 } 4510 4511 static void 4512 lkpi_radiotap_attach(struct lkpi_hw *lhw) 4513 { 4514 struct ieee80211com *ic; 4515 4516 ic = lhw->ic; 4517 ieee80211_radiotap_attach(ic, 4518 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 4519 LKPI_RTAP_TX_FLAGS_PRESENT, 4520 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 4521 LKPI_RTAP_RX_FLAGS_PRESENT); 4522 } 4523 4524 int 4525 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 4526 { 4527 struct ieee80211com *ic; 4528 struct lkpi_hw *lhw; 4529 int band, i; 4530 4531 lhw = HW_TO_LHW(hw); 4532 ic = lhw->ic; 4533 4534 /* We do it this late as wiphy->dev should be set for the name. */ 4535 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 4536 if (lhw->workq == NULL) 4537 return (-EAGAIN); 4538 4539 /* XXX-BZ figure this out how they count his... */ 4540 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 4541 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4542 hw->wiphy->perm_addr); 4543 } else if (hw->wiphy->n_addresses > 0) { 4544 /* We take the first one. */ 4545 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4546 hw->wiphy->addresses[0].addr); 4547 } else { 4548 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 4549 } 4550 4551 #ifdef __not_yet__ 4552 /* See comment in lkpi_80211_txq_tx_one(). */ 4553 ic->ic_headroom = hw->extra_tx_headroom; 4554 #endif 4555 4556 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 4557 ic->ic_opmode = IEEE80211_M_STA; 4558 4559 /* Set device capabilities. */ 4560 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 4561 ic->ic_caps = 4562 IEEE80211_C_STA | 4563 IEEE80211_C_MONITOR | 4564 IEEE80211_C_WPA | /* WPA/RSN */ 4565 #ifdef LKPI_80211_WME 4566 IEEE80211_C_WME | 4567 #endif 4568 #if 0 4569 IEEE80211_C_PMGT | 4570 #endif 4571 IEEE80211_C_SHSLOT | /* short slot time supported */ 4572 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 4573 ; 4574 #if 0 4575 /* Scanning is a different kind of beast to re-work. */ 4576 ic->ic_caps |= IEEE80211_C_BGSCAN; 4577 #endif 4578 if (lhw->ops->hw_scan) { 4579 /* 4580 * Advertise full-offload scanning. 4581 * 4582 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4583 * we essentially disable hw_scan for all drivers not setting 4584 * the flag. 4585 */ 4586 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4587 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4588 } 4589 4590 /* 4591 * The wiphy variables report bitmasks of avail antennas. 4592 * (*get_antenna) get the current bitmask sets which can be 4593 * altered by (*set_antenna) for some drivers. 4594 * XXX-BZ will the count alone do us much good long-term in net80211? 4595 */ 4596 if (hw->wiphy->available_antennas_rx || 4597 hw->wiphy->available_antennas_tx) { 4598 uint32_t rxs, txs; 4599 4600 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 4601 ic->ic_rxstream = bitcount32(rxs); 4602 ic->ic_txstream = bitcount32(txs); 4603 } 4604 } 4605 4606 ic->ic_cryptocaps = 0; 4607 #ifdef LKPI_80211_HW_CRYPTO 4608 if (hw->wiphy->n_cipher_suites > 0) { 4609 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 4610 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 4611 hw->wiphy->cipher_suites[i]); 4612 } 4613 #endif 4614 4615 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 4616 ic->ic_channels); 4617 4618 ieee80211_ifattach(ic); 4619 4620 ic->ic_update_mcast = lkpi_ic_update_mcast; 4621 ic->ic_update_promisc = lkpi_ic_update_promisc; 4622 ic->ic_update_chw = lkpi_ic_update_chw; 4623 ic->ic_parent = lkpi_ic_parent; 4624 ic->ic_scan_start = lkpi_ic_scan_start; 4625 ic->ic_scan_end = lkpi_ic_scan_end; 4626 ic->ic_set_channel = lkpi_ic_set_channel; 4627 ic->ic_transmit = lkpi_ic_transmit; 4628 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 4629 ic->ic_vap_create = lkpi_ic_vap_create; 4630 ic->ic_vap_delete = lkpi_ic_vap_delete; 4631 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 4632 ic->ic_wme.wme_update = lkpi_ic_wme_update; 4633 4634 lhw->ic_scan_curchan = ic->ic_scan_curchan; 4635 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 4636 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 4637 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 4638 4639 lhw->ic_node_alloc = ic->ic_node_alloc; 4640 ic->ic_node_alloc = lkpi_ic_node_alloc; 4641 lhw->ic_node_init = ic->ic_node_init; 4642 ic->ic_node_init = lkpi_ic_node_init; 4643 lhw->ic_node_cleanup = ic->ic_node_cleanup; 4644 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 4645 lhw->ic_node_free = ic->ic_node_free; 4646 ic->ic_node_free = lkpi_ic_node_free; 4647 4648 #ifdef LKPI_80211_HT 4649 lhw->ic_recv_action = ic->ic_recv_action; 4650 ic->ic_recv_action = lkpi_ic_recv_action; 4651 lhw->ic_send_action = ic->ic_send_action; 4652 ic->ic_send_action = lkpi_ic_send_action; 4653 4654 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 4655 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 4656 4657 lhw->ic_addba_request = ic->ic_addba_request; 4658 ic->ic_addba_request = lkpi_ic_addba_request; 4659 lhw->ic_addba_response = ic->ic_addba_response; 4660 ic->ic_addba_response = lkpi_ic_addba_response; 4661 lhw->ic_addba_stop = ic->ic_addba_stop; 4662 ic->ic_addba_stop = lkpi_ic_addba_stop; 4663 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 4664 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 4665 4666 lhw->ic_bar_response = ic->ic_bar_response; 4667 ic->ic_bar_response = lkpi_ic_bar_response; 4668 4669 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 4670 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 4671 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 4672 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 4673 #endif 4674 4675 lkpi_radiotap_attach(lhw); 4676 4677 /* 4678 * Assign the first possible channel for now; seems Realtek drivers 4679 * expect one. 4680 * Also remember the amount of bands we support and the most rates 4681 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 4682 */ 4683 lhw->supbands = lhw->max_rates = 0; 4684 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4685 struct ieee80211_supported_band *supband; 4686 struct linuxkpi_ieee80211_channel *channels; 4687 4688 supband = hw->wiphy->bands[band]; 4689 if (supband == NULL || supband->n_channels == 0) 4690 continue; 4691 4692 lhw->supbands++; 4693 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 4694 4695 /* If we have a channel, we need to keep counting supbands. */ 4696 if (hw->conf.chandef.chan != NULL) 4697 continue; 4698 4699 channels = supband->channels; 4700 for (i = 0; i < supband->n_channels; i++) { 4701 4702 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4703 continue; 4704 4705 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 4706 #ifdef LKPI_80211_HT 4707 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 4708 #endif 4709 NL80211_CHAN_NO_HT); 4710 break; 4711 } 4712 } 4713 4714 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 4715 4716 /* Make sure we do not support more than net80211 is willing to take. */ 4717 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 4718 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 4719 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 4720 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 4721 } 4722 4723 /* 4724 * The maximum supported bitrates on any band + size for 4725 * DSSS Parameter Set give our per-band IE size. 4726 * SSID is the responsibility of the driver and goes on the side. 4727 * The user specified bits coming from the vap go into the 4728 * "common ies" fields. 4729 */ 4730 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 4731 if (lhw->max_rates > IEEE80211_RATE_SIZE) 4732 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 4733 4734 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 4735 /* 4736 * net80211 does not seem to support the DSSS Parameter Set but 4737 * some of the drivers insert it so calculate the extra fixed 4738 * space in. 4739 */ 4740 lhw->scan_ie_len += 2 + 1; 4741 } 4742 4743 #if defined(LKPI_80211_HT) 4744 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 4745 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 4746 #endif 4747 #if defined(LKPI_80211_VHT) 4748 if ((ic->ic_flags_ext & IEEE80211_FEXT_VHT) != 0) 4749 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 4750 #endif 4751 4752 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 4753 if (hw->wiphy->max_scan_ie_len > 0) { 4754 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 4755 goto err; 4756 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 4757 } 4758 4759 if (bootverbose) 4760 ieee80211_announce(ic); 4761 4762 return (0); 4763 err: 4764 IMPROVE("TODO FIXME CLEANUP"); 4765 return (-EAGAIN); 4766 } 4767 4768 void 4769 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 4770 { 4771 struct lkpi_hw *lhw; 4772 struct ieee80211com *ic; 4773 4774 lhw = HW_TO_LHW(hw); 4775 ic = lhw->ic; 4776 ieee80211_ifdetach(ic); 4777 } 4778 4779 void 4780 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 4781 enum ieee80211_iface_iter flags, 4782 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 4783 void *arg) 4784 { 4785 struct lkpi_hw *lhw; 4786 struct lkpi_vif *lvif; 4787 struct ieee80211_vif *vif; 4788 bool active, atomic, nin_drv; 4789 4790 lhw = HW_TO_LHW(hw); 4791 4792 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 4793 IEEE80211_IFACE_ITER_RESUME_ALL| 4794 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 4795 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 4796 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 4797 __func__, flags); 4798 } 4799 4800 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 4801 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 4802 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 4803 4804 if (atomic) 4805 LKPI_80211_LHW_LVIF_LOCK(lhw); 4806 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4807 struct ieee80211vap *vap; 4808 4809 vif = LVIF_TO_VIF(lvif); 4810 4811 /* 4812 * If we want "active" interfaces, we need to distinguish on 4813 * whether the driver knows about them or not to be able to 4814 * handle the "resume" case correctly. Skip the ones the 4815 * driver does not know about. 4816 */ 4817 if (active && !lvif->added_to_drv && 4818 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 4819 continue; 4820 4821 /* 4822 * If we shall skip interfaces not added to the driver do so 4823 * if we haven't yet. 4824 */ 4825 if (nin_drv && !lvif->added_to_drv) 4826 continue; 4827 4828 /* 4829 * Run the iterator function if we are either not asking 4830 * asking for active only or if the VAP is "running". 4831 */ 4832 /* XXX-BZ probably should have state in the lvif as well. */ 4833 vap = LVIF_TO_VAP(lvif); 4834 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 4835 iterfunc(arg, vif->addr, vif); 4836 } 4837 if (atomic) 4838 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4839 } 4840 4841 void 4842 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 4843 struct ieee80211_vif *vif, 4844 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 4845 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 4846 void *arg) 4847 { 4848 4849 UNIMPLEMENTED; 4850 } 4851 4852 void 4853 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 4854 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 4855 void *), 4856 void *arg) 4857 { 4858 struct lkpi_hw *lhw; 4859 struct lkpi_vif *lvif; 4860 struct ieee80211_vif *vif; 4861 struct lkpi_chanctx *lchanctx; 4862 4863 KASSERT(hw != NULL && iterfunc != NULL, 4864 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4865 4866 lhw = HW_TO_LHW(hw); 4867 4868 IMPROVE("lchanctx should be its own list somewhere"); 4869 4870 LKPI_80211_LHW_LVIF_LOCK(lhw); 4871 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4872 4873 vif = LVIF_TO_VIF(lvif); 4874 if (vif->chanctx_conf == NULL) 4875 continue; 4876 4877 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 4878 if (!lchanctx->added_to_drv) 4879 continue; 4880 4881 iterfunc(hw, &lchanctx->chanctx_conf, arg); 4882 } 4883 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4884 } 4885 4886 void 4887 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4888 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4889 { 4890 struct lkpi_hw *lhw; 4891 struct lkpi_vif *lvif; 4892 struct lkpi_sta *lsta; 4893 struct ieee80211_sta *sta; 4894 4895 KASSERT(hw != NULL && iterfunc != NULL, 4896 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4897 4898 lhw = HW_TO_LHW(hw); 4899 4900 LKPI_80211_LHW_LVIF_LOCK(lhw); 4901 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4902 4903 LKPI_80211_LVIF_LOCK(lvif); 4904 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4905 if (!lsta->added_to_drv) 4906 continue; 4907 sta = LSTA_TO_STA(lsta); 4908 iterfunc(arg, sta); 4909 } 4910 LKPI_80211_LVIF_UNLOCK(lvif); 4911 } 4912 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4913 } 4914 4915 struct linuxkpi_ieee80211_regdomain * 4916 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4917 { 4918 struct linuxkpi_ieee80211_regdomain *regd; 4919 4920 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4921 GFP_KERNEL); 4922 return (regd); 4923 } 4924 4925 int 4926 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4927 struct linuxkpi_ieee80211_regdomain *regd) 4928 { 4929 struct lkpi_hw *lhw; 4930 struct ieee80211com *ic; 4931 struct ieee80211_regdomain *rd; 4932 4933 lhw = wiphy_priv(wiphy); 4934 ic = lhw->ic; 4935 4936 rd = &ic->ic_regdomain; 4937 if (rd->isocc[0] == '\0') { 4938 rd->isocc[0] = regd->alpha2[0]; 4939 rd->isocc[1] = regd->alpha2[1]; 4940 } 4941 4942 TODO(); 4943 /* XXX-BZ finish the rest. */ 4944 4945 return (0); 4946 } 4947 4948 void 4949 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4950 struct cfg80211_scan_info *info) 4951 { 4952 struct lkpi_hw *lhw; 4953 struct ieee80211com *ic; 4954 struct ieee80211_scan_state *ss; 4955 4956 lhw = wiphy_priv(hw->wiphy); 4957 ic = lhw->ic; 4958 ss = ic->ic_scan; 4959 4960 ieee80211_scan_done(ss->ss_vap); 4961 4962 LKPI_80211_LHW_SCAN_LOCK(lhw); 4963 free(lhw->hw_req, M_LKPI80211); 4964 lhw->hw_req = NULL; 4965 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4966 wakeup(lhw); 4967 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4968 4969 return; 4970 } 4971 4972 static void 4973 lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 4974 { 4975 struct ieee80211_node *ni; 4976 struct m_tag *mtag; 4977 int ok; 4978 4979 ni = NULL; 4980 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4981 if (mtag != NULL) { 4982 struct lkpi_80211_tag_rxni *rxni; 4983 4984 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4985 ni = rxni->ni; 4986 } 4987 4988 if (ni != NULL) { 4989 ok = ieee80211_input_mimo(ni, m); 4990 ieee80211_free_node(ni); /* Release the reference. */ 4991 if (ok < 0) 4992 m_freem(m); 4993 } else { 4994 ok = ieee80211_input_mimo_all(lhw->ic, m); 4995 /* mbuf got consumed. */ 4996 } 4997 4998 #ifdef LINUXKPI_DEBUG_80211 4999 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5000 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 5001 #endif 5002 } 5003 5004 static void 5005 lkpi_80211_lhw_rxq_task(void *ctx, int pending) 5006 { 5007 struct lkpi_hw *lhw; 5008 struct mbufq mq; 5009 struct mbuf *m; 5010 5011 lhw = ctx; 5012 5013 #ifdef LINUXKPI_DEBUG_80211 5014 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5015 printf("%s:%d lhw %p pending %d mbuf_qlen %d\n", 5016 __func__, __LINE__, lhw, pending, mbufq_len(&lhw->rxq)); 5017 #endif 5018 5019 mbufq_init(&mq, IFQ_MAXLEN); 5020 5021 LKPI_80211_LHW_RXQ_LOCK(lhw); 5022 mbufq_concat(&mq, &lhw->rxq); 5023 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5024 5025 m = mbufq_dequeue(&mq); 5026 while (m != NULL) { 5027 lkpi_80211_lhw_rxq_rx_one(lhw, m); 5028 m = mbufq_dequeue(&mq); 5029 } 5030 } 5031 5032 /* For %list see comment towards the end of the function. */ 5033 void 5034 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 5035 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 5036 struct list_head *list __unused) 5037 { 5038 struct lkpi_hw *lhw; 5039 struct ieee80211com *ic; 5040 struct mbuf *m; 5041 struct skb_shared_info *shinfo; 5042 struct ieee80211_rx_status *rx_status; 5043 struct ieee80211_rx_stats rx_stats; 5044 struct ieee80211_node *ni; 5045 struct ieee80211vap *vap; 5046 struct ieee80211_hdr *hdr; 5047 struct lkpi_sta *lsta; 5048 int i, offset, ok; 5049 int8_t rssi; 5050 bool is_beacon; 5051 5052 if (skb->len < 2) { 5053 /* Need 80211 stats here. */ 5054 IMPROVE(); 5055 goto err; 5056 } 5057 5058 /* 5059 * For now do the data copy; we can later improve things. Might even 5060 * have an mbuf backing the skb data then? 5061 */ 5062 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 5063 if (m == NULL) 5064 goto err; 5065 m_copyback(m, 0, skb->tail - skb->data, skb->data); 5066 5067 shinfo = skb_shinfo(skb); 5068 offset = m->m_len; 5069 for (i = 0; i < shinfo->nr_frags; i++) { 5070 m_copyback(m, offset, shinfo->frags[i].size, 5071 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 5072 shinfo->frags[i].offset); 5073 offset += shinfo->frags[i].size; 5074 } 5075 5076 rx_status = IEEE80211_SKB_RXCB(skb); 5077 5078 hdr = (void *)skb->data; 5079 is_beacon = ieee80211_is_beacon(hdr->frame_control); 5080 5081 #ifdef LINUXKPI_DEBUG_80211 5082 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 5083 goto no_trace_beacons; 5084 5085 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5086 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 5087 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 5088 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 5089 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 5090 shinfo, shinfo->nr_frags, 5091 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 5092 5093 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 5094 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 5095 5096 /* Implement a dump_rxcb() !!! */ 5097 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5098 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 5099 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 5100 __func__, 5101 (uintmax_t)rx_status->boottime_ns, 5102 (uintmax_t)rx_status->mactime, 5103 rx_status->device_timestamp, 5104 rx_status->flag, 5105 rx_status->freq, 5106 rx_status->bw, 5107 rx_status->encoding, 5108 rx_status->ampdu_reference, 5109 rx_status->band, 5110 rx_status->chains, 5111 rx_status->chain_signal[0], 5112 rx_status->chain_signal[1], 5113 rx_status->chain_signal[2], 5114 rx_status->chain_signal[3], 5115 rx_status->signal, 5116 rx_status->enc_flags, 5117 rx_status->he_dcm, 5118 rx_status->he_gi, 5119 rx_status->he_ru, 5120 rx_status->zero_length_psdu_type, 5121 rx_status->nss, 5122 rx_status->rate_idx); 5123 no_trace_beacons: 5124 #endif 5125 5126 memset(&rx_stats, 0, sizeof(rx_stats)); 5127 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 5128 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 5129 rx_stats.c_nf = -96; 5130 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 5131 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 5132 rssi = rx_status->signal; 5133 else 5134 rssi = rx_stats.c_nf; 5135 /* 5136 * net80211 signal strength data are in .5 dBm units relative to 5137 * the current noise floor (see comment in ieee80211_node.h). 5138 */ 5139 rssi -= rx_stats.c_nf; 5140 rx_stats.c_rssi = rssi * 2; 5141 rx_stats.r_flags |= IEEE80211_R_BAND; 5142 rx_stats.c_band = 5143 lkpi_nl80211_band_to_net80211_band(rx_status->band); 5144 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 5145 rx_stats.c_freq = rx_status->freq; 5146 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 5147 5148 /* XXX (*sta_statistics)() to get to some of that? */ 5149 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 5150 5151 lhw = HW_TO_LHW(hw); 5152 ic = lhw->ic; 5153 5154 ok = ieee80211_add_rx_params(m, &rx_stats); 5155 if (ok == 0) { 5156 m_freem(m); 5157 counter_u64_add(ic->ic_ierrors, 1); 5158 goto err; 5159 } 5160 5161 lsta = NULL; 5162 if (sta != NULL) { 5163 lsta = STA_TO_LSTA(sta); 5164 ni = ieee80211_ref_node(lsta->ni); 5165 } else { 5166 struct ieee80211_frame_min *wh; 5167 5168 wh = mtod(m, struct ieee80211_frame_min *); 5169 ni = ieee80211_find_rxnode(ic, wh); 5170 if (ni != NULL) 5171 lsta = ni->ni_drv_data; 5172 } 5173 5174 if (ni != NULL) 5175 vap = ni->ni_vap; 5176 else 5177 /* 5178 * XXX-BZ can we improve this by looking at the frame hdr 5179 * or other meta-data passed up? 5180 */ 5181 vap = TAILQ_FIRST(&ic->ic_vaps); 5182 5183 #ifdef LINUXKPI_DEBUG_80211 5184 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5185 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 5186 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 5187 ni, vap, is_beacon ? " beacon" : ""); 5188 #endif 5189 5190 if (ni != NULL && vap != NULL && is_beacon && 5191 rx_status->device_timestamp > 0 && 5192 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 5193 struct lkpi_vif *lvif; 5194 struct ieee80211_vif *vif; 5195 struct ieee80211_frame *wh; 5196 5197 wh = mtod(m, struct ieee80211_frame *); 5198 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 5199 goto skip_device_ts; 5200 5201 lvif = VAP_TO_LVIF(vap); 5202 vif = LVIF_TO_VIF(lvif); 5203 5204 IMPROVE("TIMING_BEACON_ONLY?"); 5205 /* mac80211 specific (not net80211) so keep it here. */ 5206 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 5207 /* 5208 * net80211 should take care of the other information (sync_tsf, 5209 * sync_dtim_count) as otherwise we need to parse the beacon. 5210 */ 5211 skip_device_ts: 5212 ; 5213 } 5214 5215 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 5216 ieee80211_radiotap_active_vap(vap)) { 5217 struct lkpi_radiotap_rx_hdr *rtap; 5218 5219 rtap = &lhw->rtap_rx; 5220 rtap->wr_tsft = rx_status->device_timestamp; 5221 rtap->wr_flags = 0; 5222 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 5223 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 5224 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 5225 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 5226 #if 0 /* .. or it does not given we strip it below. */ 5227 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5228 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 5229 #endif 5230 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 5231 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 5232 rtap->wr_rate = 0; 5233 IMPROVE(); 5234 /* XXX TODO status->encoding / rate_index / bw */ 5235 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 5236 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 5237 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 5238 rtap->wr_dbm_antsignal = rssi; 5239 rtap->wr_dbm_antnoise = rx_stats.c_nf; 5240 } 5241 5242 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5243 m_adj(m, -IEEE80211_CRC_LEN); 5244 5245 #if 0 5246 if (list != NULL) { 5247 /* 5248 * Normally this would be queued up and delivered by 5249 * netif_receive_skb_list(), napi_gro_receive(), or the like. 5250 * See mt76::mac80211.c as only current possible consumer. 5251 */ 5252 IMPROVE("we simply pass the packet to net80211 to deal with."); 5253 } 5254 #endif 5255 5256 /* 5257 * Attach meta-information to the mbuf for the deferred RX path. 5258 * Currently this is best-effort. Should we need to be hard, 5259 * drop the frame and goto err; 5260 */ 5261 if (ni != NULL) { 5262 struct m_tag *mtag; 5263 struct lkpi_80211_tag_rxni *rxni; 5264 5265 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 5266 sizeof(*rxni), IEEE80211_M_NOWAIT); 5267 if (mtag != NULL) { 5268 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 5269 rxni->ni = ni; /* We hold a reference. */ 5270 m_tag_prepend(m, mtag); 5271 } 5272 } 5273 5274 LKPI_80211_LHW_RXQ_LOCK(lhw); 5275 if (lhw->rxq_stopped) { 5276 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5277 m_freem(m); 5278 goto err; 5279 } 5280 5281 mbufq_enqueue(&lhw->rxq, m); 5282 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 5283 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5284 5285 IMPROVE(); 5286 5287 err: 5288 /* The skb is ours so we can free it :-) */ 5289 kfree_skb(skb); 5290 } 5291 5292 uint8_t 5293 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 5294 { 5295 const struct ieee80211_frame *wh; 5296 uint8_t tid; 5297 5298 /* Linux seems to assume this is a QOS-Data-Frame */ 5299 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 5300 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 5301 hdr->frame_control)); 5302 5303 wh = (const struct ieee80211_frame *)hdr; 5304 tid = ieee80211_gettid(wh); 5305 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 5306 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 5307 5308 return (tid); 5309 } 5310 5311 struct wiphy * 5312 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 5313 { 5314 struct lkpi_wiphy *lwiphy; 5315 5316 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 5317 if (lwiphy == NULL) 5318 return (NULL); 5319 lwiphy->ops = ops; 5320 5321 /* XXX TODO */ 5322 return (LWIPHY_TO_WIPHY(lwiphy)); 5323 } 5324 5325 void 5326 linuxkpi_wiphy_free(struct wiphy *wiphy) 5327 { 5328 struct lkpi_wiphy *lwiphy; 5329 5330 if (wiphy == NULL) 5331 return; 5332 5333 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5334 kfree(lwiphy); 5335 } 5336 5337 uint32_t 5338 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 5339 enum nl80211_band band) 5340 { 5341 5342 switch (band) { 5343 case NL80211_BAND_2GHZ: 5344 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 5345 break; 5346 case NL80211_BAND_5GHZ: 5347 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 5348 break; 5349 default: 5350 /* XXX abort, retry, error, panic? */ 5351 break; 5352 } 5353 5354 return (0); 5355 } 5356 5357 uint32_t 5358 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 5359 { 5360 5361 return (ieee80211_mhz2ieee(freq, 0)); 5362 } 5363 5364 #if 0 5365 static struct lkpi_sta * 5366 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 5367 { 5368 struct lkpi_sta *lsta, *temp; 5369 5370 LKPI_80211_LVIF_LOCK(lvif); 5371 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5372 if (lsta->ni == ni) { 5373 LKPI_80211_LVIF_UNLOCK(lvif); 5374 return (lsta); 5375 } 5376 } 5377 LKPI_80211_LVIF_UNLOCK(lvif); 5378 5379 return (NULL); 5380 } 5381 #endif 5382 5383 struct ieee80211_sta * 5384 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 5385 { 5386 struct lkpi_vif *lvif; 5387 struct lkpi_sta *lsta, *temp; 5388 struct ieee80211_sta *sta; 5389 5390 lvif = VIF_TO_LVIF(vif); 5391 5392 LKPI_80211_LVIF_LOCK(lvif); 5393 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5394 sta = LSTA_TO_STA(lsta); 5395 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 5396 LKPI_80211_LVIF_UNLOCK(lvif); 5397 return (sta); 5398 } 5399 } 5400 LKPI_80211_LVIF_UNLOCK(lvif); 5401 return (NULL); 5402 } 5403 5404 struct ieee80211_sta * 5405 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 5406 const uint8_t *addr, const uint8_t *ourvifaddr) 5407 { 5408 struct lkpi_hw *lhw; 5409 struct lkpi_vif *lvif; 5410 struct lkpi_sta *lsta; 5411 struct ieee80211_vif *vif; 5412 struct ieee80211_sta *sta; 5413 5414 lhw = wiphy_priv(hw->wiphy); 5415 sta = NULL; 5416 5417 LKPI_80211_LHW_LVIF_LOCK(lhw); 5418 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5419 5420 /* XXX-BZ check our address from the vif. */ 5421 5422 vif = LVIF_TO_VIF(lvif); 5423 if (ourvifaddr != NULL && 5424 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 5425 continue; 5426 sta = linuxkpi_ieee80211_find_sta(vif, addr); 5427 if (sta != NULL) 5428 break; 5429 } 5430 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5431 5432 if (sta != NULL) { 5433 lsta = STA_TO_LSTA(sta); 5434 if (!lsta->added_to_drv) 5435 return (NULL); 5436 } 5437 5438 return (sta); 5439 } 5440 5441 struct sk_buff * 5442 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 5443 struct ieee80211_txq *txq) 5444 { 5445 struct lkpi_txq *ltxq; 5446 struct lkpi_vif *lvif; 5447 struct sk_buff *skb; 5448 5449 skb = NULL; 5450 ltxq = TXQ_TO_LTXQ(txq); 5451 ltxq->seen_dequeue = true; 5452 5453 if (ltxq->stopped) 5454 goto stopped; 5455 5456 lvif = VIF_TO_LVIF(ltxq->txq.vif); 5457 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 5458 ltxq->stopped = true; 5459 goto stopped; 5460 } 5461 5462 IMPROVE("hw(TX_FRAG_LIST)"); 5463 5464 LKPI_80211_LTXQ_LOCK(ltxq); 5465 skb = skb_dequeue(<xq->skbq); 5466 LKPI_80211_LTXQ_UNLOCK(ltxq); 5467 5468 stopped: 5469 return (skb); 5470 } 5471 5472 void 5473 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 5474 unsigned long *frame_cnt, unsigned long *byte_cnt) 5475 { 5476 struct lkpi_txq *ltxq; 5477 struct sk_buff *skb; 5478 unsigned long fc, bc; 5479 5480 ltxq = TXQ_TO_LTXQ(txq); 5481 5482 fc = bc = 0; 5483 LKPI_80211_LTXQ_LOCK(ltxq); 5484 skb_queue_walk(<xq->skbq, skb) { 5485 fc++; 5486 bc += skb->len; 5487 } 5488 LKPI_80211_LTXQ_UNLOCK(ltxq); 5489 if (frame_cnt) 5490 *frame_cnt = fc; 5491 if (byte_cnt) 5492 *byte_cnt = bc; 5493 5494 /* Validate that this is doing the correct thing. */ 5495 /* Should we keep track on en/dequeue? */ 5496 IMPROVE(); 5497 } 5498 5499 /* 5500 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 5501 * The latter tries to derive the success status from the info flags 5502 * passed back from the driver. rawx_mit() saves the ni on the m and the 5503 * m on the skb for us to be able to give feedback to net80211. 5504 */ 5505 static void 5506 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5507 int status) 5508 { 5509 struct ieee80211_node *ni; 5510 struct mbuf *m; 5511 5512 m = skb->m; 5513 skb->m = NULL; 5514 5515 if (m != NULL) { 5516 ni = m->m_pkthdr.PH_loc.ptr; 5517 /* Status: 0 is ok, != 0 is error. */ 5518 ieee80211_tx_complete(ni, m, status); 5519 /* ni & mbuf were consumed. */ 5520 } 5521 } 5522 5523 void 5524 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5525 int status) 5526 { 5527 5528 _lkpi_ieee80211_free_txskb(hw, skb, status); 5529 kfree_skb(skb); 5530 } 5531 5532 void 5533 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 5534 struct ieee80211_tx_status *txstat) 5535 { 5536 struct sk_buff *skb; 5537 struct ieee80211_tx_info *info; 5538 struct ieee80211_ratectl_tx_status txs; 5539 struct ieee80211_node *ni; 5540 int status; 5541 5542 skb = txstat->skb; 5543 if (skb->m != NULL) { 5544 struct mbuf *m; 5545 5546 m = skb->m; 5547 ni = m->m_pkthdr.PH_loc.ptr; 5548 memset(&txs, 0, sizeof(txs)); 5549 } else { 5550 ni = NULL; 5551 } 5552 5553 info = txstat->info; 5554 if (info->flags & IEEE80211_TX_STAT_ACK) { 5555 status = 0; /* No error. */ 5556 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 5557 } else { 5558 status = 1; 5559 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 5560 } 5561 5562 if (ni != NULL) { 5563 int ridx __unused; 5564 #ifdef LINUXKPI_DEBUG_80211 5565 int old_rate; 5566 5567 old_rate = ni->ni_vap->iv_bss->ni_txrate; 5568 #endif 5569 txs.pktlen = skb->len; 5570 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 5571 if (info->status.rates[0].count > 1) { 5572 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 5573 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 5574 } 5575 #if 0 /* Unused in net80211 currently. */ 5576 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 5577 txs.final_rate = info->status.rates[0].idx; 5578 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 5579 #endif 5580 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 5581 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 5582 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 5583 } 5584 5585 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 5586 ieee80211_ratectl_tx_complete(ni, &txs); 5587 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 5588 5589 #ifdef LINUXKPI_DEBUG_80211 5590 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 5591 printf("TX-RATE: %s: old %d new %d ridx %d, " 5592 "long_retries %d\n", __func__, 5593 old_rate, ni->ni_vap->iv_bss->ni_txrate, 5594 ridx, txs.long_retries); 5595 } 5596 #endif 5597 } 5598 5599 #ifdef LINUXKPI_DEBUG_80211 5600 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5601 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 5602 "band %u hw_queue %u tx_time_est %d : " 5603 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 5604 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 5605 "tx_time %u flags %#x " 5606 "status_driver_data [ %p %p ]\n", 5607 __func__, hw, skb, status, info->flags, 5608 info->band, info->hw_queue, info->tx_time_est, 5609 info->status.rates[0].idx, info->status.rates[0].count, 5610 info->status.rates[0].flags, 5611 info->status.rates[1].idx, info->status.rates[1].count, 5612 info->status.rates[1].flags, 5613 info->status.rates[2].idx, info->status.rates[2].count, 5614 info->status.rates[2].flags, 5615 info->status.rates[3].idx, info->status.rates[3].count, 5616 info->status.rates[3].flags, 5617 info->status.ack_signal, info->status.ampdu_ack_len, 5618 info->status.ampdu_len, info->status.antenna, 5619 info->status.tx_time, info->status.flags, 5620 info->status.status_driver_data[0], 5621 info->status.status_driver_data[1]); 5622 #endif 5623 5624 if (txstat->free_list) { 5625 _lkpi_ieee80211_free_txskb(hw, skb, status); 5626 list_add_tail(&skb->list, txstat->free_list); 5627 } else { 5628 linuxkpi_ieee80211_free_txskb(hw, skb, status); 5629 } 5630 } 5631 5632 void 5633 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 5634 { 5635 struct ieee80211_tx_status status; 5636 5637 memset(&status, 0, sizeof(status)); 5638 status.info = IEEE80211_SKB_CB(skb); 5639 status.skb = skb; 5640 /* sta, n_rates, rates, free_list? */ 5641 5642 ieee80211_tx_status_ext(hw, &status); 5643 } 5644 5645 /* 5646 * This is an internal bandaid for the moment for the way we glue 5647 * skbs and mbufs together for TX. Once we have skbs backed by 5648 * mbufs this should go away. 5649 * This is a public function but kept on the private KPI (lkpi_) 5650 * and is not exposed by a header file. 5651 */ 5652 static void 5653 lkpi_ieee80211_free_skb_mbuf(void *p) 5654 { 5655 struct ieee80211_node *ni; 5656 struct mbuf *m; 5657 5658 if (p == NULL) 5659 return; 5660 5661 m = (struct mbuf *)p; 5662 M_ASSERTPKTHDR(m); 5663 5664 ni = m->m_pkthdr.PH_loc.ptr; 5665 m->m_pkthdr.PH_loc.ptr = NULL; 5666 if (ni != NULL) 5667 ieee80211_free_node(ni); 5668 m_freem(m); 5669 } 5670 5671 void 5672 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 5673 struct delayed_work *w, int delay) 5674 { 5675 struct lkpi_hw *lhw; 5676 5677 /* Need to make sure hw is in a stable (non-suspended) state. */ 5678 IMPROVE(); 5679 5680 lhw = HW_TO_LHW(hw); 5681 queue_delayed_work(lhw->workq, w, delay); 5682 } 5683 5684 void 5685 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 5686 struct work_struct *w) 5687 { 5688 struct lkpi_hw *lhw; 5689 5690 /* Need to make sure hw is in a stable (non-suspended) state. */ 5691 IMPROVE(); 5692 5693 lhw = HW_TO_LHW(hw); 5694 queue_work(lhw->workq, w); 5695 } 5696 5697 struct sk_buff * 5698 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 5699 uint8_t *ssid, size_t ssid_len, size_t tailroom) 5700 { 5701 struct sk_buff *skb; 5702 struct ieee80211_frame *wh; 5703 uint8_t *p; 5704 size_t len; 5705 5706 len = sizeof(*wh); 5707 len += 2 + ssid_len; 5708 5709 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 5710 if (skb == NULL) 5711 return (NULL); 5712 5713 skb_reserve(skb, hw->extra_tx_headroom); 5714 5715 wh = skb_put_zero(skb, sizeof(*wh)); 5716 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 5717 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 5718 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 5719 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 5720 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 5721 5722 p = skb_put(skb, 2 + ssid_len); 5723 *p++ = IEEE80211_ELEMID_SSID; 5724 *p++ = ssid_len; 5725 if (ssid_len > 0) 5726 memcpy(p, ssid, ssid_len); 5727 5728 return (skb); 5729 } 5730 5731 struct sk_buff * 5732 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 5733 struct ieee80211_vif *vif) 5734 { 5735 struct lkpi_vif *lvif; 5736 struct ieee80211vap *vap; 5737 struct sk_buff *skb; 5738 struct ieee80211_frame_pspoll *psp; 5739 uint16_t v; 5740 5741 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 5742 if (skb == NULL) 5743 return (NULL); 5744 5745 skb_reserve(skb, hw->extra_tx_headroom); 5746 5747 lvif = VIF_TO_LVIF(vif); 5748 vap = LVIF_TO_VAP(lvif); 5749 5750 psp = skb_put_zero(skb, sizeof(*psp)); 5751 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 5752 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 5753 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 5754 memcpy(&psp->i_aid, &v, sizeof(v)); 5755 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 5756 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 5757 5758 return (skb); 5759 } 5760 5761 struct sk_buff * 5762 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 5763 struct ieee80211_vif *vif, int linkid, bool qos) 5764 { 5765 struct lkpi_vif *lvif; 5766 struct ieee80211vap *vap; 5767 struct sk_buff *skb; 5768 struct ieee80211_frame *nullf; 5769 5770 IMPROVE("linkid"); 5771 5772 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 5773 if (skb == NULL) 5774 return (NULL); 5775 5776 skb_reserve(skb, hw->extra_tx_headroom); 5777 5778 lvif = VIF_TO_LVIF(vif); 5779 vap = LVIF_TO_VAP(lvif); 5780 5781 nullf = skb_put_zero(skb, sizeof(*nullf)); 5782 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 5783 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 5784 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 5785 5786 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 5787 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 5788 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 5789 5790 return (skb); 5791 } 5792 5793 struct wireless_dev * 5794 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 5795 { 5796 struct lkpi_vif *lvif; 5797 5798 lvif = VIF_TO_LVIF(vif); 5799 return (&lvif->wdev); 5800 } 5801 5802 void 5803 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 5804 { 5805 struct lkpi_vif *lvif; 5806 struct ieee80211vap *vap; 5807 enum ieee80211_state nstate; 5808 int arg; 5809 5810 lvif = VIF_TO_LVIF(vif); 5811 vap = LVIF_TO_VAP(lvif); 5812 5813 /* 5814 * Go to init; otherwise we need to elaborately check state and 5815 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 5816 * Let the statemachine handle all neccessary changes. 5817 */ 5818 nstate = IEEE80211_S_INIT; 5819 arg = 0; /* Not a valid reason. */ 5820 5821 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5822 vif, vap, ieee80211_state_name[vap->iv_state]); 5823 ieee80211_new_state(vap, nstate, arg); 5824 } 5825 5826 void 5827 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 5828 { 5829 struct lkpi_vif *lvif; 5830 struct ieee80211vap *vap; 5831 5832 lvif = VIF_TO_LVIF(vif); 5833 vap = LVIF_TO_VAP(lvif); 5834 5835 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5836 vif, vap, ieee80211_state_name[vap->iv_state]); 5837 ieee80211_beacon_miss(vap->iv_ic); 5838 } 5839 5840 /* -------------------------------------------------------------------------- */ 5841 5842 void 5843 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 5844 { 5845 struct lkpi_hw *lhw; 5846 struct lkpi_vif *lvif; 5847 struct ieee80211_vif *vif; 5848 int ac_count, ac; 5849 5850 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5851 __func__, qnum, hw->queues, hw)); 5852 5853 lhw = wiphy_priv(hw->wiphy); 5854 5855 /* See lkpi_ic_vap_create(). */ 5856 if (hw->queues >= IEEE80211_NUM_ACS) 5857 ac_count = IEEE80211_NUM_ACS; 5858 else 5859 ac_count = 1; 5860 5861 LKPI_80211_LHW_LVIF_LOCK(lhw); 5862 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5863 5864 vif = LVIF_TO_VIF(lvif); 5865 for (ac = 0; ac < ac_count; ac++) { 5866 IMPROVE_TXQ("LOCKING"); 5867 if (qnum == vif->hw_queue[ac]) { 5868 #ifdef LINUXKPI_DEBUG_80211 5869 /* 5870 * For now log this to better understand 5871 * how this is supposed to work. 5872 */ 5873 if (lvif->hw_queue_stopped[ac] && 5874 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5875 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5876 "lvif %p vif %p ac %d qnum %d already " 5877 "stopped\n", __func__, __LINE__, 5878 lhw, hw, lvif, vif, ac, qnum); 5879 #endif 5880 lvif->hw_queue_stopped[ac] = true; 5881 } 5882 } 5883 } 5884 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5885 } 5886 5887 void 5888 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 5889 { 5890 int i; 5891 5892 IMPROVE_TXQ("Locking; do we need further info?"); 5893 for (i = 0; i < hw->queues; i++) 5894 linuxkpi_ieee80211_stop_queue(hw, i); 5895 } 5896 5897 5898 static void 5899 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 5900 { 5901 struct lkpi_hw *lhw; 5902 struct lkpi_vif *lvif; 5903 struct lkpi_sta *lsta; 5904 int ac_count, ac, tid; 5905 5906 /* See lkpi_ic_vap_create(). */ 5907 if (hw->queues >= IEEE80211_NUM_ACS) 5908 ac_count = IEEE80211_NUM_ACS; 5909 else 5910 ac_count = 1; 5911 5912 lhw = wiphy_priv(hw->wiphy); 5913 5914 IMPROVE_TXQ("Locking"); 5915 LKPI_80211_LHW_LVIF_LOCK(lhw); 5916 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5917 struct ieee80211_vif *vif; 5918 5919 vif = LVIF_TO_VIF(lvif); 5920 for (ac = 0; ac < ac_count; ac++) { 5921 5922 if (hwq == vif->hw_queue[ac]) { 5923 5924 /* XXX-BZ what about software scan? */ 5925 5926 #ifdef LINUXKPI_DEBUG_80211 5927 /* 5928 * For now log this to better understand 5929 * how this is supposed to work. 5930 */ 5931 if (!lvif->hw_queue_stopped[ac] && 5932 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5933 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5934 "lvif %p vif %p ac %d hw_q not stopped\n", 5935 __func__, __LINE__, 5936 lhw, hw, lvif, vif, ac); 5937 #endif 5938 lvif->hw_queue_stopped[ac] = false; 5939 5940 LKPI_80211_LVIF_LOCK(lvif); 5941 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 5942 struct ieee80211_sta *sta; 5943 5944 sta = LSTA_TO_STA(lsta); 5945 for (tid = 0; tid < nitems(sta->txq); tid++) { 5946 struct lkpi_txq *ltxq; 5947 5948 if (sta->txq[tid] == NULL) 5949 continue; 5950 5951 if (sta->txq[tid]->ac != ac) 5952 continue; 5953 5954 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 5955 if (!ltxq->stopped) 5956 continue; 5957 5958 ltxq->stopped = false; 5959 5960 /* XXX-BZ see when this explodes with all the locking. taskq? */ 5961 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 5962 } 5963 } 5964 LKPI_80211_LVIF_UNLOCK(lvif); 5965 } 5966 } 5967 } 5968 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5969 } 5970 5971 void 5972 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 5973 { 5974 int i; 5975 5976 IMPROVE_TXQ("Is this all/enough here?"); 5977 for (i = 0; i < hw->queues; i++) 5978 lkpi_ieee80211_wake_queues(hw, i); 5979 } 5980 5981 void 5982 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 5983 { 5984 5985 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5986 __func__, qnum, hw->queues, hw)); 5987 5988 lkpi_ieee80211_wake_queues(hw, qnum); 5989 } 5990 5991 /* This is just hardware queues. */ 5992 void 5993 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 5994 { 5995 struct lkpi_hw *lhw; 5996 5997 lhw = HW_TO_LHW(hw); 5998 5999 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 6000 IMPROVE_TXQ("LOCKING"); 6001 if (++lhw->txq_generation[ac] == 0) 6002 lhw->txq_generation[ac]++; 6003 } 6004 6005 struct ieee80211_txq * 6006 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 6007 { 6008 struct lkpi_hw *lhw; 6009 struct ieee80211_txq *txq; 6010 struct lkpi_txq *ltxq; 6011 6012 lhw = HW_TO_LHW(hw); 6013 txq = NULL; 6014 6015 IMPROVE_TXQ("LOCKING"); 6016 6017 /* Check that we are scheduled. */ 6018 if (lhw->txq_generation[ac] == 0) 6019 goto out; 6020 6021 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 6022 if (ltxq == NULL) 6023 goto out; 6024 if (ltxq->txq_generation == lhw->txq_generation[ac]) 6025 goto out; 6026 6027 ltxq->txq_generation = lhw->txq_generation[ac]; 6028 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 6029 txq = <xq->txq; 6030 TAILQ_ELEM_INIT(ltxq, txq_entry); 6031 6032 out: 6033 return (txq); 6034 } 6035 6036 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 6037 struct ieee80211_txq *txq, bool withoutpkts) 6038 { 6039 struct lkpi_hw *lhw; 6040 struct lkpi_txq *ltxq; 6041 bool ltxq_empty; 6042 6043 ltxq = TXQ_TO_LTXQ(txq); 6044 6045 IMPROVE_TXQ("LOCKING"); 6046 6047 /* Only schedule if work to do or asked to anyway. */ 6048 LKPI_80211_LTXQ_LOCK(ltxq); 6049 ltxq_empty = skb_queue_empty(<xq->skbq); 6050 LKPI_80211_LTXQ_UNLOCK(ltxq); 6051 if (!withoutpkts && ltxq_empty) 6052 goto out; 6053 6054 /* Make sure we do not double-schedule. */ 6055 if (ltxq->txq_entry.tqe_next != NULL) 6056 goto out; 6057 6058 lhw = HW_TO_LHW(hw); 6059 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 6060 out: 6061 return; 6062 } 6063 6064 void 6065 linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 6066 struct ieee80211_txq *txq) 6067 { 6068 struct lkpi_hw *lhw; 6069 struct ieee80211_txq *ntxq; 6070 struct ieee80211_tx_control control; 6071 struct sk_buff *skb; 6072 6073 lhw = HW_TO_LHW(hw); 6074 6075 LKPI_80211_LHW_TXQ_LOCK(lhw); 6076 ieee80211_txq_schedule_start(hw, txq->ac); 6077 do { 6078 ntxq = ieee80211_next_txq(hw, txq->ac); 6079 if (ntxq == NULL) 6080 break; 6081 6082 memset(&control, 0, sizeof(control)); 6083 control.sta = ntxq->sta; 6084 do { 6085 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 6086 if (skb == NULL) 6087 break; 6088 lkpi_80211_mo_tx(hw, &control, skb); 6089 } while(1); 6090 6091 ieee80211_return_txq(hw, ntxq, false); 6092 } while (1); 6093 ieee80211_txq_schedule_end(hw, txq->ac); 6094 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 6095 } 6096 6097 /* -------------------------------------------------------------------------- */ 6098 6099 struct lkpi_cfg80211_bss { 6100 u_int refcnt; 6101 struct cfg80211_bss bss; 6102 }; 6103 6104 struct lkpi_cfg80211_get_bss_iter_lookup { 6105 struct wiphy *wiphy; 6106 struct linuxkpi_ieee80211_channel *chan; 6107 const uint8_t *bssid; 6108 const uint8_t *ssid; 6109 size_t ssid_len; 6110 enum ieee80211_bss_type bss_type; 6111 enum ieee80211_privacy privacy; 6112 6113 /* 6114 * Something to store a copy of the result as the net80211 scan cache 6115 * is not refoucnted so a scan entry might go away any time. 6116 */ 6117 bool match; 6118 struct cfg80211_bss *bss; 6119 }; 6120 6121 static void 6122 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 6123 { 6124 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 6125 size_t ielen; 6126 6127 lookup = arg; 6128 6129 /* Do not try to find another match. */ 6130 if (lookup->match) 6131 return; 6132 6133 /* Nothing to store result. */ 6134 if (lookup->bss == NULL) 6135 return; 6136 6137 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 6138 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 6139 /* We have no idea what to compare to as the drivers only request ANY */ 6140 return; 6141 } 6142 6143 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 6144 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 6145 /* We have no idea what to compare to as the drivers only request ANY */ 6146 return; 6147 } 6148 6149 if (lookup->chan != NULL) { 6150 struct linuxkpi_ieee80211_channel *chan; 6151 6152 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 6153 se->se_chan->ic_freq); 6154 if (chan == NULL || chan != lookup->chan) 6155 return; 6156 } 6157 6158 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 6159 return; 6160 6161 if (lookup->ssid) { 6162 if (lookup->ssid_len != se->se_ssid[1] || 6163 se->se_ssid[1] == 0) 6164 return; 6165 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 6166 return; 6167 } 6168 6169 ielen = se->se_ies.len; 6170 6171 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 6172 M_LKPI80211, M_NOWAIT | M_ZERO); 6173 if (lookup->bss->ies == NULL) 6174 return; 6175 6176 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 6177 lookup->bss->ies->len = ielen; 6178 if (ielen) 6179 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 6180 6181 lookup->match = true; 6182 } 6183 6184 struct cfg80211_bss * 6185 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 6186 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 6187 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 6188 { 6189 struct lkpi_cfg80211_bss *lbss; 6190 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 6191 struct lkpi_hw *lhw; 6192 struct ieee80211vap *vap; 6193 6194 lhw = wiphy_priv(wiphy); 6195 6196 /* Let's hope we can alloc. */ 6197 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 6198 if (lbss == NULL) { 6199 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 6200 return (NULL); 6201 } 6202 6203 lookup.wiphy = wiphy; 6204 lookup.chan = chan; 6205 lookup.bssid = bssid; 6206 lookup.ssid = ssid; 6207 lookup.ssid_len = ssid_len; 6208 lookup.bss_type = bss_type; 6209 lookup.privacy = privacy; 6210 lookup.match = false; 6211 lookup.bss = &lbss->bss; 6212 6213 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 6214 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 6215 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 6216 if (!lookup.match) { 6217 free(lbss, M_LKPI80211); 6218 return (NULL); 6219 } 6220 6221 refcount_init(&lbss->refcnt, 1); 6222 return (&lbss->bss); 6223 } 6224 6225 void 6226 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 6227 { 6228 struct lkpi_cfg80211_bss *lbss; 6229 6230 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 6231 6232 /* Free everything again on refcount ... */ 6233 if (refcount_release(&lbss->refcnt)) { 6234 free(lbss->bss.ies, M_LKPI80211); 6235 free(lbss, M_LKPI80211); 6236 } 6237 } 6238 6239 void 6240 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 6241 { 6242 struct lkpi_hw *lhw; 6243 struct ieee80211com *ic; 6244 struct ieee80211vap *vap; 6245 6246 lhw = wiphy_priv(wiphy); 6247 ic = lhw->ic; 6248 6249 /* 6250 * If we haven't called ieee80211_ifattach() yet 6251 * or there is no VAP, there are no scans to flush. 6252 */ 6253 if (ic == NULL || 6254 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 6255 return; 6256 6257 /* Should only happen on the current one? Not seen it late enough. */ 6258 IEEE80211_LOCK(ic); 6259 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 6260 ieee80211_scan_flush(vap); 6261 IEEE80211_UNLOCK(ic); 6262 } 6263 6264 /* -------------------------------------------------------------------------- */ 6265 6266 MODULE_VERSION(linuxkpi_wlan, 1); 6267 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 6268 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 6269