1 /*- 2 * Copyright (c) 2020-2024 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 = 1; 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 %#010jx\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 (uintmax_t)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 %#010jx\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 (uintmax_t)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 prep_tx_info.was_assoc = true; 1780 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1781 lsta->in_mgd = true; 1782 } 1783 1784 LKPI_80211_LHW_UNLOCK(lhw); 1785 IEEE80211_LOCK(vap->iv_ic); 1786 1787 /* Call iv_newstate first so we get potential DEAUTH packet out. */ 1788 error = lvif->iv_newstate(vap, nstate, arg); 1789 if (error != 0) { 1790 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1791 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1792 goto outni; 1793 } 1794 1795 IEEE80211_UNLOCK(vap->iv_ic); 1796 1797 /* Ensure the packets get out. */ 1798 lkpi_80211_flush_tx(lhw, lsta); 1799 1800 LKPI_80211_LHW_LOCK(lhw); 1801 1802 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1803 1804 /* Wake tx queues to get packet(s) out. */ 1805 lkpi_wake_tx_queues(hw, sta, false, true); 1806 1807 /* flush, no drop */ 1808 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1809 1810 /* End mgd_complete_tx. */ 1811 if (lsta->in_mgd) { 1812 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1813 prep_tx_info.success = false; 1814 prep_tx_info.was_assoc = true; 1815 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1816 lsta->in_mgd = false; 1817 } 1818 1819 /* sync_rx_queues */ 1820 lkpi_80211_mo_sync_rx_queues(hw); 1821 1822 /* sta_pre_rcu_remove */ 1823 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1824 1825 /* Take the station down. */ 1826 1827 /* Update sta and change state (from AUTH) to NONE. */ 1828 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1829 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1830 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1831 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1832 if (error != 0) { 1833 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1834 "failed: %d\n", __func__, __LINE__, error); 1835 goto out; 1836 } 1837 1838 /* See comment in lkpi_sta_run_to_init(). */ 1839 bss_changed = 0; 1840 bss_changed |= lkpi_disassoc(sta, vif, lhw); 1841 1842 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1843 1844 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1845 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1846 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1847 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1848 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1849 if (error != 0) { 1850 IMPROVE("do we need to undo the chan ctx?"); 1851 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1852 "failed: %d\n", __func__, __LINE__, error); 1853 goto out; 1854 } 1855 1856 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1857 1858 IMPROVE("Any bss_info changes to announce?"); 1859 vif->bss_conf.qos = 0; 1860 bss_changed |= BSS_CHANGED_QOS; 1861 vif->cfg.ssid_len = 0; 1862 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1863 bss_changed |= BSS_CHANGED_BSSID; 1864 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1865 1866 LKPI_80211_LVIF_LOCK(lvif); 1867 /* Remove ni reference for this cache of lsta. */ 1868 lvif->lvif_bss = NULL; 1869 lvif->lvif_bss_synched = false; 1870 LKPI_80211_LVIF_UNLOCK(lvif); 1871 lkpi_lsta_remove(lsta, lvif); 1872 /* 1873 * The very last release the reference on the ni for the ni/lsta on 1874 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1875 * and potentially freed. 1876 */ 1877 ieee80211_free_node(ni); 1878 1879 /* conf_tx */ 1880 1881 /* Take the chan ctx down. */ 1882 if (vif->chanctx_conf != NULL) { 1883 struct lkpi_chanctx *lchanctx; 1884 struct ieee80211_chanctx_conf *chanctx_conf; 1885 1886 chanctx_conf = vif->chanctx_conf; 1887 /* Remove vif context. */ 1888 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1889 /* NB: vif->chanctx_conf is NULL now. */ 1890 1891 lkpi_hw_conf_idle(hw, true); 1892 1893 /* Remove chan ctx. */ 1894 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1895 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1896 free(lchanctx, M_LKPI80211); 1897 } 1898 1899 error = EALREADY; 1900 out: 1901 LKPI_80211_LHW_UNLOCK(lhw); 1902 IEEE80211_LOCK(vap->iv_ic); 1903 outni: 1904 return (error); 1905 } 1906 1907 static int 1908 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1909 { 1910 int error; 1911 1912 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1913 if (error != 0 && error != EALREADY) 1914 return (error); 1915 1916 /* At this point iv_bss is long a new node! */ 1917 1918 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1919 return (error); 1920 } 1921 1922 static int 1923 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1924 { 1925 int error; 1926 1927 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1928 return (error); 1929 } 1930 1931 static int 1932 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1933 { 1934 int error; 1935 1936 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1937 return (error); 1938 } 1939 1940 static int 1941 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1942 { 1943 struct lkpi_hw *lhw; 1944 struct ieee80211_hw *hw; 1945 struct lkpi_vif *lvif; 1946 struct ieee80211_vif *vif; 1947 struct ieee80211_node *ni; 1948 struct lkpi_sta *lsta; 1949 struct ieee80211_sta *sta; 1950 struct ieee80211_prep_tx_info prep_tx_info; 1951 enum ieee80211_bss_changed bss_changed; 1952 int error; 1953 1954 lhw = vap->iv_ic->ic_softc; 1955 hw = LHW_TO_HW(lhw); 1956 lvif = VAP_TO_LVIF(vap); 1957 vif = LVIF_TO_VIF(lvif); 1958 1959 IEEE80211_UNLOCK(vap->iv_ic); 1960 LKPI_80211_LHW_LOCK(lhw); 1961 1962 LKPI_80211_LVIF_LOCK(lvif); 1963 /* XXX-BZ KASSERT later? */ 1964 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1965 #ifdef LINUXKPI_DEBUG_80211 1966 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1967 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1968 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1969 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1970 lvif->lvif_bss_synched); 1971 #endif 1972 LKPI_80211_LVIF_UNLOCK(lvif); 1973 error = ENOTRECOVERABLE; 1974 goto out; 1975 } 1976 lsta = lvif->lvif_bss; 1977 LKPI_80211_LVIF_UNLOCK(lvif); 1978 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1979 "lvif %p vap %p\n", __func__, 1980 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1981 1982 ni = lsta->ni; /* Reference held for lvif_bss. */ 1983 1984 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1985 "and to lesser extend ieee80211_notify_node_join"); 1986 1987 /* Finish assoc. */ 1988 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1989 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1990 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1991 sta = LSTA_TO_STA(lsta); 1992 sta->aid = IEEE80211_NODE_AID(ni); 1993 #ifdef LKPI_80211_WME 1994 if (vap->iv_flags & IEEE80211_F_WME) 1995 sta->wme = true; 1996 #endif 1997 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1998 if (error != 0) { 1999 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2000 "failed: %d\n", __func__, __LINE__, error); 2001 goto out; 2002 } 2003 2004 IMPROVE("wme / conf_tx [all]"); 2005 2006 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2007 bss_changed = 0; 2008 #ifdef LKPI_80211_WME 2009 bss_changed |= lkpi_wme_update(lhw, vap, true); 2010 #endif 2011 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 2012 vif->cfg.assoc = true; 2013 vif->cfg.aid = IEEE80211_NODE_AID(ni); 2014 bss_changed |= BSS_CHANGED_ASSOC; 2015 } 2016 /* We set SSID but this is not BSSID! */ 2017 vif->cfg.ssid_len = ni->ni_esslen; 2018 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 2019 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 2020 vif->bss_conf.use_short_preamble) { 2021 vif->bss_conf.use_short_preamble ^= 1; 2022 /* bss_changed |= BSS_CHANGED_??? */ 2023 } 2024 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 2025 vif->bss_conf.use_short_slot) { 2026 vif->bss_conf.use_short_slot ^= 1; 2027 /* bss_changed |= BSS_CHANGED_??? */ 2028 } 2029 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 2030 vif->bss_conf.qos) { 2031 vif->bss_conf.qos ^= 1; 2032 bss_changed |= BSS_CHANGED_QOS; 2033 } 2034 2035 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2036 2037 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2038 2039 /* - change_chanctx (if needed) 2040 * - event_callback 2041 */ 2042 2043 /* End mgd_complete_tx. */ 2044 if (lsta->in_mgd) { 2045 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2046 prep_tx_info.success = true; 2047 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2048 lsta->in_mgd = false; 2049 } 2050 2051 lkpi_hw_conf_idle(hw, false); 2052 2053 /* 2054 * And then: 2055 * - (more packets)? 2056 * - set_key 2057 * - set_default_unicast_key 2058 * - set_key (?) 2059 * - ipv6_addr_change (?) 2060 */ 2061 /* Prepare_multicast && configure_filter. */ 2062 lhw->update_mc = true; 2063 lkpi_update_mcast_filter(vap->iv_ic, true); 2064 2065 if (!ieee80211_node_is_authorized(ni)) { 2066 IMPROVE("net80211 does not consider node authorized"); 2067 } 2068 2069 #if defined(LKPI_80211_HT) 2070 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 2071 lkpi_sta_sync_ht_from_ni(sta, ni, NULL); 2072 #endif 2073 2074 /* Update sta_state (ASSOC to AUTHORIZED). */ 2075 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2076 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2077 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2078 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 2079 if (error != 0) { 2080 IMPROVE("undo some changes?"); 2081 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 2082 "failed: %d\n", __func__, __LINE__, error); 2083 goto out; 2084 } 2085 2086 /* - drv_config (?) 2087 * - bss_info_changed 2088 * - set_rekey_data (?) 2089 * 2090 * And now we should be passing packets. 2091 */ 2092 IMPROVE("Need that bssid setting, and the keys"); 2093 2094 bss_changed = 0; 2095 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2096 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2097 2098 out: 2099 LKPI_80211_LHW_UNLOCK(lhw); 2100 IEEE80211_LOCK(vap->iv_ic); 2101 return (error); 2102 } 2103 2104 static int 2105 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2106 { 2107 int error; 2108 2109 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 2110 if (error == 0) 2111 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 2112 return (error); 2113 } 2114 2115 static int 2116 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2117 { 2118 struct lkpi_hw *lhw; 2119 struct ieee80211_hw *hw; 2120 struct lkpi_vif *lvif; 2121 struct ieee80211_vif *vif; 2122 struct ieee80211_node *ni; 2123 struct lkpi_sta *lsta; 2124 struct ieee80211_sta *sta; 2125 struct ieee80211_prep_tx_info prep_tx_info; 2126 #if 0 2127 enum ieee80211_bss_changed bss_changed; 2128 #endif 2129 int error; 2130 2131 lhw = vap->iv_ic->ic_softc; 2132 hw = LHW_TO_HW(lhw); 2133 lvif = VAP_TO_LVIF(vap); 2134 vif = LVIF_TO_VIF(lvif); 2135 2136 LKPI_80211_LVIF_LOCK(lvif); 2137 #ifdef LINUXKPI_DEBUG_80211 2138 /* XXX-BZ KASSERT later; state going down so no action. */ 2139 if (lvif->lvif_bss == NULL) 2140 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2141 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2142 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2143 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2144 lvif->lvif_bss_synched); 2145 #endif 2146 lsta = lvif->lvif_bss; 2147 LKPI_80211_LVIF_UNLOCK(lvif); 2148 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2149 "lvif %p vap %p\n", __func__, 2150 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2151 2152 ni = lsta->ni; /* Reference held for lvif_bss. */ 2153 sta = LSTA_TO_STA(lsta); 2154 2155 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2156 2157 IEEE80211_UNLOCK(vap->iv_ic); 2158 LKPI_80211_LHW_LOCK(lhw); 2159 2160 /* flush, drop. */ 2161 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2162 2163 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2164 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2165 !lsta->in_mgd) { 2166 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2167 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2168 prep_tx_info.was_assoc = true; 2169 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2170 lsta->in_mgd = true; 2171 } 2172 2173 LKPI_80211_LHW_UNLOCK(lhw); 2174 IEEE80211_LOCK(vap->iv_ic); 2175 2176 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2177 error = lvif->iv_newstate(vap, nstate, arg); 2178 if (error != 0) { 2179 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2180 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2181 goto outni; 2182 } 2183 2184 IEEE80211_UNLOCK(vap->iv_ic); 2185 2186 /* Ensure the packets get out. */ 2187 lkpi_80211_flush_tx(lhw, lsta); 2188 2189 LKPI_80211_LHW_LOCK(lhw); 2190 2191 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2192 2193 /* Wake tx queues to get packet(s) out. */ 2194 lkpi_wake_tx_queues(hw, sta, false, true); 2195 2196 /* flush, no drop */ 2197 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2198 2199 /* End mgd_complete_tx. */ 2200 if (lsta->in_mgd) { 2201 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2202 prep_tx_info.success = false; 2203 prep_tx_info.was_assoc = true; 2204 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2205 lsta->in_mgd = false; 2206 } 2207 2208 #if 0 2209 /* sync_rx_queues */ 2210 lkpi_80211_mo_sync_rx_queues(hw); 2211 2212 /* sta_pre_rcu_remove */ 2213 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2214 #endif 2215 2216 /* Take the station down. */ 2217 2218 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2219 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2220 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2221 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2222 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2223 if (error != 0) { 2224 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2225 "failed: %d\n", __func__, __LINE__, error); 2226 goto out; 2227 } 2228 2229 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2230 2231 /* Update sta_state (ASSOC to AUTH). */ 2232 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2233 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2234 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2235 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2236 if (error != 0) { 2237 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2238 "failed: %d\n", __func__, __LINE__, error); 2239 goto out; 2240 } 2241 2242 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2243 2244 #if 0 2245 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2246 lkpi_disassoc(sta, vif, lhw); 2247 #endif 2248 2249 error = EALREADY; 2250 out: 2251 LKPI_80211_LHW_UNLOCK(lhw); 2252 IEEE80211_LOCK(vap->iv_ic); 2253 outni: 2254 return (error); 2255 } 2256 2257 static int 2258 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2259 { 2260 struct lkpi_hw *lhw; 2261 struct ieee80211_hw *hw; 2262 struct lkpi_vif *lvif; 2263 struct ieee80211_vif *vif; 2264 struct ieee80211_node *ni; 2265 struct lkpi_sta *lsta; 2266 struct ieee80211_sta *sta; 2267 struct ieee80211_prep_tx_info prep_tx_info; 2268 enum ieee80211_bss_changed bss_changed; 2269 int error; 2270 2271 lhw = vap->iv_ic->ic_softc; 2272 hw = LHW_TO_HW(lhw); 2273 lvif = VAP_TO_LVIF(vap); 2274 vif = LVIF_TO_VIF(lvif); 2275 2276 IEEE80211_UNLOCK(vap->iv_ic); 2277 LKPI_80211_LHW_LOCK(lhw); 2278 2279 LKPI_80211_LVIF_LOCK(lvif); 2280 #ifdef LINUXKPI_DEBUG_80211 2281 /* XXX-BZ KASSERT later; state going down so no action. */ 2282 if (lvif->lvif_bss == NULL) 2283 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2284 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2285 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2286 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2287 lvif->lvif_bss_synched); 2288 #endif 2289 lsta = lvif->lvif_bss; 2290 LKPI_80211_LVIF_UNLOCK(lvif); 2291 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2292 "lvif %p vap %p\n", __func__, 2293 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2294 2295 ni = lsta->ni; /* Reference held for lvif_bss. */ 2296 sta = LSTA_TO_STA(lsta); 2297 2298 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2299 2300 /* flush, drop. */ 2301 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2302 2303 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2304 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2305 !lsta->in_mgd) { 2306 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2307 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2308 prep_tx_info.was_assoc = true; 2309 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2310 lsta->in_mgd = true; 2311 } 2312 2313 LKPI_80211_LHW_UNLOCK(lhw); 2314 IEEE80211_LOCK(vap->iv_ic); 2315 2316 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2317 error = lvif->iv_newstate(vap, nstate, arg); 2318 if (error != 0) { 2319 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2320 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2321 goto outni; 2322 } 2323 2324 IEEE80211_UNLOCK(vap->iv_ic); 2325 2326 /* Ensure the packets get out. */ 2327 lkpi_80211_flush_tx(lhw, lsta); 2328 2329 LKPI_80211_LHW_LOCK(lhw); 2330 2331 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2332 2333 /* Wake tx queues to get packet(s) out. */ 2334 lkpi_wake_tx_queues(hw, sta, false, true); 2335 2336 /* flush, no drop */ 2337 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2338 2339 /* End mgd_complete_tx. */ 2340 if (lsta->in_mgd) { 2341 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2342 prep_tx_info.success = false; 2343 prep_tx_info.was_assoc = true; 2344 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2345 lsta->in_mgd = false; 2346 } 2347 2348 /* sync_rx_queues */ 2349 lkpi_80211_mo_sync_rx_queues(hw); 2350 2351 /* sta_pre_rcu_remove */ 2352 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2353 2354 /* Take the station down. */ 2355 2356 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2357 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2358 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2359 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2360 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2361 if (error != 0) { 2362 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2363 "failed: %d\n", __func__, __LINE__, error); 2364 goto out; 2365 } 2366 2367 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2368 2369 /* Update sta_state (ASSOC to AUTH). */ 2370 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2371 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2372 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2373 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2374 if (error != 0) { 2375 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2376 "failed: %d\n", __func__, __LINE__, error); 2377 goto out; 2378 } 2379 2380 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2381 2382 /* Update sta and change state (from AUTH) to NONE. */ 2383 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2384 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 2385 "AUTH: %#x\n", __func__, lsta, lsta->state)); 2386 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2387 if (error != 0) { 2388 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2389 "failed: %d\n", __func__, __LINE__, error); 2390 goto out; 2391 } 2392 2393 bss_changed = 0; 2394 /* 2395 * Start updating bss info (bss_info_changed) (assoc, aid, ..). 2396 * 2397 * One would expect this to happen when going off AUTHORIZED. 2398 * See comment there; removes the sta from fw if not careful 2399 * (bss_info_changed() change is executed right away). 2400 * 2401 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 2402 * as otherwise drivers (iwlwifi at least) will silently not remove 2403 * the sta from the firmware and when we will add a new one trigger 2404 * a fw assert. 2405 * 2406 * The order which works best so far avoiding early removal or silent 2407 * non-removal seems to be (for iwlwifi::mld-mac80211.c cases; 2408 * the iwlwifi:mac80211.c case still to be tested): 2409 * 1) lkpi_disassoc(): set vif->cfg.assoc = false (aid=0 side effect here) 2410 * 2) call the last sta_state update -> IEEE80211_STA_NOTEXIST 2411 * (removes the sta given assoc is false) 2412 * 3) add the remaining BSS_CHANGED changes and call bss_info_changed() 2413 * 4) call unassign_vif_chanctx 2414 * 5) call lkpi_hw_conf_idle 2415 * 6) call remove_chanctx 2416 */ 2417 bss_changed |= lkpi_disassoc(sta, vif, lhw); 2418 2419 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2420 2421 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 2422 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2423 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 2424 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 2425 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 2426 if (error != 0) { 2427 IMPROVE("do we need to undo the chan ctx?"); 2428 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 2429 "failed: %d\n", __func__, __LINE__, error); 2430 goto out; 2431 } 2432 2433 lkpi_lsta_remove(lsta, lvif); 2434 2435 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 2436 2437 IMPROVE("Any bss_info changes to announce?"); 2438 vif->bss_conf.qos = 0; 2439 bss_changed |= BSS_CHANGED_QOS; 2440 vif->cfg.ssid_len = 0; 2441 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 2442 bss_changed |= BSS_CHANGED_BSSID; 2443 vif->bss_conf.use_short_preamble = false; 2444 vif->bss_conf.qos = false; 2445 /* XXX BSS_CHANGED_???? */ 2446 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2447 2448 LKPI_80211_LVIF_LOCK(lvif); 2449 /* Remove ni reference for this cache of lsta. */ 2450 lvif->lvif_bss = NULL; 2451 lvif->lvif_bss_synched = false; 2452 LKPI_80211_LVIF_UNLOCK(lvif); 2453 /* 2454 * The very last release the reference on the ni for the ni/lsta on 2455 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 2456 * and potentially freed. 2457 */ 2458 ieee80211_free_node(ni); 2459 2460 /* conf_tx */ 2461 2462 /* Take the chan ctx down. */ 2463 if (vif->chanctx_conf != NULL) { 2464 struct lkpi_chanctx *lchanctx; 2465 struct ieee80211_chanctx_conf *chanctx_conf; 2466 2467 chanctx_conf = vif->chanctx_conf; 2468 /* Remove vif context. */ 2469 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 2470 /* NB: vif->chanctx_conf is NULL now. */ 2471 2472 lkpi_hw_conf_idle(hw, true); 2473 2474 /* Remove chan ctx. */ 2475 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2476 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2477 free(lchanctx, M_LKPI80211); 2478 } 2479 2480 error = EALREADY; 2481 out: 2482 LKPI_80211_LHW_UNLOCK(lhw); 2483 IEEE80211_LOCK(vap->iv_ic); 2484 outni: 2485 return (error); 2486 } 2487 2488 static int 2489 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2490 { 2491 2492 return (lkpi_sta_run_to_init(vap, nstate, arg)); 2493 } 2494 2495 static int 2496 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2497 { 2498 int error; 2499 2500 error = lkpi_sta_run_to_init(vap, nstate, arg); 2501 if (error != 0 && error != EALREADY) 2502 return (error); 2503 2504 /* At this point iv_bss is long a new node! */ 2505 2506 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 2507 return (error); 2508 } 2509 2510 /* -------------------------------------------------------------------------- */ 2511 2512 /* 2513 * The matches the documented state changes in net80211::sta_newstate(). 2514 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 2515 * there are "invalid" (so there is a room for failure here). 2516 */ 2517 struct fsm_state { 2518 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 2519 enum ieee80211_state ostate; 2520 enum ieee80211_state nstate; 2521 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 2522 } sta_state_fsm[] = { 2523 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 2524 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 2525 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 2526 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 2527 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 2528 2529 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2530 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2531 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 2532 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 2533 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 2534 2535 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2536 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2537 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2538 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2539 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2540 2541 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2542 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2543 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2544 2545 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2546 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2547 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2548 2549 /* Dummy at the end without handler. */ 2550 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2551 }; 2552 2553 static int 2554 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2555 { 2556 struct ieee80211com *ic; 2557 struct lkpi_hw *lhw; 2558 struct lkpi_vif *lvif; 2559 struct ieee80211_vif *vif; 2560 struct fsm_state *s; 2561 enum ieee80211_state ostate; 2562 int error; 2563 2564 ic = vap->iv_ic; 2565 IEEE80211_LOCK_ASSERT(ic); 2566 ostate = vap->iv_state; 2567 2568 #ifdef LINUXKPI_DEBUG_80211 2569 if (linuxkpi_debug_80211 & D80211_TRACE) 2570 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2571 __func__, __LINE__, vap, nstate, arg); 2572 #endif 2573 2574 if (vap->iv_opmode == IEEE80211_M_STA) { 2575 2576 lhw = ic->ic_softc; 2577 lvif = VAP_TO_LVIF(vap); 2578 vif = LVIF_TO_VIF(lvif); 2579 2580 /* No need to replicate this in most state handlers. */ 2581 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2582 lkpi_stop_hw_scan(lhw, vif); 2583 2584 s = sta_state_fsm; 2585 2586 } else { 2587 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2588 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2589 return (ENOSYS); 2590 } 2591 2592 error = 0; 2593 for (; s->handler != NULL; s++) { 2594 if (ostate == s->ostate && nstate == s->nstate) { 2595 #ifdef LINUXKPI_DEBUG_80211 2596 if (linuxkpi_debug_80211 & D80211_TRACE) 2597 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2598 " %d (%s): arg %d.\n", __func__, 2599 ostate, ieee80211_state_name[ostate], 2600 nstate, ieee80211_state_name[nstate], arg); 2601 #endif 2602 error = s->handler(vap, nstate, arg); 2603 break; 2604 } 2605 } 2606 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2607 2608 if (s->handler == NULL) { 2609 IMPROVE("turn this into a KASSERT\n"); 2610 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2611 "%d (%s) -> %d (%s)\n", __func__, 2612 ostate, ieee80211_state_name[ostate], 2613 nstate, ieee80211_state_name[nstate]); 2614 return (ENOSYS); 2615 } 2616 2617 if (error == EALREADY) { 2618 #ifdef LINUXKPI_DEBUG_80211 2619 if (linuxkpi_debug_80211 & D80211_TRACE) 2620 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2621 "%d (%s): iv_newstate already handled: %d.\n", 2622 __func__, ostate, ieee80211_state_name[ostate], 2623 nstate, ieee80211_state_name[nstate], error); 2624 #endif 2625 return (0); 2626 } 2627 2628 if (error != 0) { 2629 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2630 "%d (%s) -> %d (%s)\n", __func__, error, 2631 ostate, ieee80211_state_name[ostate], 2632 nstate, ieee80211_state_name[nstate]); 2633 return (error); 2634 } 2635 2636 #ifdef LINUXKPI_DEBUG_80211 2637 if (linuxkpi_debug_80211 & D80211_TRACE) 2638 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2639 "calling net80211 parent\n", 2640 __func__, __LINE__, vap, nstate, arg); 2641 #endif 2642 2643 return (lvif->iv_newstate(vap, nstate, arg)); 2644 } 2645 2646 /* -------------------------------------------------------------------------- */ 2647 2648 /* 2649 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2650 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2651 * new node without us knowing and thus our ni/lsta are out of sync. 2652 */ 2653 static struct ieee80211_node * 2654 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2655 { 2656 struct lkpi_vif *lvif; 2657 struct ieee80211_node *rni; 2658 2659 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2660 2661 lvif = VAP_TO_LVIF(vap); 2662 2663 LKPI_80211_LVIF_LOCK(lvif); 2664 lvif->lvif_bss_synched = false; 2665 LKPI_80211_LVIF_UNLOCK(lvif); 2666 2667 rni = lvif->iv_update_bss(vap, ni); 2668 return (rni); 2669 } 2670 2671 #ifdef LKPI_80211_WME 2672 static int 2673 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2674 { 2675 struct ieee80211com *ic; 2676 struct ieee80211_hw *hw; 2677 struct lkpi_vif *lvif; 2678 struct ieee80211_vif *vif; 2679 struct chanAccParams chp; 2680 struct wmeParams wmeparr[WME_NUM_AC]; 2681 struct ieee80211_tx_queue_params txqp; 2682 enum ieee80211_bss_changed changed; 2683 int error; 2684 uint16_t ac; 2685 2686 IMPROVE(); 2687 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2688 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2689 2690 if (vap == NULL) 2691 return (0); 2692 2693 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2694 return (0); 2695 2696 if (lhw->ops->conf_tx == NULL) 2697 return (0); 2698 2699 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2700 lhw->update_wme = true; 2701 return (0); 2702 } 2703 lhw->update_wme = false; 2704 2705 ic = lhw->ic; 2706 ieee80211_wme_ic_getparams(ic, &chp); 2707 IEEE80211_LOCK(ic); 2708 for (ac = 0; ac < WME_NUM_AC; ac++) 2709 wmeparr[ac] = chp.cap_wmeParams[ac]; 2710 IEEE80211_UNLOCK(ic); 2711 2712 hw = LHW_TO_HW(lhw); 2713 lvif = VAP_TO_LVIF(vap); 2714 vif = LVIF_TO_VIF(lvif); 2715 2716 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2717 LKPI_80211_LHW_LOCK(lhw); 2718 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2719 struct wmeParams *wmep; 2720 2721 wmep = &wmeparr[ac]; 2722 bzero(&txqp, sizeof(txqp)); 2723 txqp.cw_min = wmep->wmep_logcwmin; 2724 txqp.cw_max = wmep->wmep_logcwmax; 2725 txqp.txop = wmep->wmep_txopLimit; 2726 txqp.aifs = wmep->wmep_aifsn; 2727 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2728 if (error != 0) 2729 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2730 __func__, ac, error); 2731 } 2732 LKPI_80211_LHW_UNLOCK(lhw); 2733 changed = BSS_CHANGED_QOS; 2734 if (!planned) 2735 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2736 2737 return (changed); 2738 } 2739 #endif 2740 2741 static int 2742 lkpi_ic_wme_update(struct ieee80211com *ic) 2743 { 2744 #ifdef LKPI_80211_WME 2745 struct ieee80211vap *vap; 2746 struct lkpi_hw *lhw; 2747 2748 IMPROVE("Use the per-VAP callback in net80211."); 2749 vap = TAILQ_FIRST(&ic->ic_vaps); 2750 if (vap == NULL) 2751 return (0); 2752 2753 lhw = ic->ic_softc; 2754 2755 lkpi_wme_update(lhw, vap, false); 2756 #endif 2757 return (0); /* unused */ 2758 } 2759 2760 /* 2761 * Change link-layer address on the vif (if the vap is not started/"UP"). 2762 * This can happen if a user changes 'ether' using ifconfig. 2763 * The code is based on net80211/ieee80211_freebsd.c::wlan_iflladdr() but 2764 * we do use a per-[l]vif event handler to be sure we exist as we 2765 * cannot assume that from every vap derives a vif and we have a hard 2766 * time checking based on net80211 information. 2767 */ 2768 static void 2769 lkpi_vif_iflladdr(void *arg, struct ifnet *ifp) 2770 { 2771 struct epoch_tracker et; 2772 struct ieee80211_vif *vif; 2773 2774 NET_EPOCH_ENTER(et); 2775 /* NB: identify vap's by if_init; left as an extra check. */ 2776 if (ifp->if_init != ieee80211_init || (ifp->if_flags & IFF_UP) != 0) { 2777 NET_EPOCH_EXIT(et); 2778 return; 2779 } 2780 2781 vif = arg; 2782 IEEE80211_ADDR_COPY(vif->bss_conf.addr, IF_LLADDR(ifp)); 2783 NET_EPOCH_EXIT(et); 2784 } 2785 2786 static struct ieee80211vap * 2787 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2788 int unit, enum ieee80211_opmode opmode, int flags, 2789 const uint8_t bssid[IEEE80211_ADDR_LEN], 2790 const uint8_t mac[IEEE80211_ADDR_LEN]) 2791 { 2792 struct lkpi_hw *lhw; 2793 struct ieee80211_hw *hw; 2794 struct lkpi_vif *lvif; 2795 struct ieee80211vap *vap; 2796 struct ieee80211_vif *vif; 2797 struct ieee80211_tx_queue_params txqp; 2798 enum ieee80211_bss_changed changed; 2799 size_t len; 2800 int error, i; 2801 uint16_t ac; 2802 2803 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2804 return (NULL); 2805 2806 lhw = ic->ic_softc; 2807 hw = LHW_TO_HW(lhw); 2808 2809 len = sizeof(*lvif); 2810 len += hw->vif_data_size; /* vif->drv_priv */ 2811 2812 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2813 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2814 TAILQ_INIT(&lvif->lsta_head); 2815 lvif->lvif_bss = NULL; 2816 lvif->lvif_bss_synched = false; 2817 vap = LVIF_TO_VAP(lvif); 2818 2819 vif = LVIF_TO_VIF(lvif); 2820 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2821 vif->p2p = false; 2822 vif->probe_req_reg = false; 2823 vif->type = lkpi_opmode_to_vif_type(opmode); 2824 lvif->wdev.iftype = vif->type; 2825 /* Need to fill in other fields as well. */ 2826 IMPROVE(); 2827 2828 /* XXX-BZ hardcoded for now! */ 2829 #if 1 2830 vif->chanctx_conf = NULL; 2831 vif->bss_conf.vif = vif; 2832 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2833 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2834 lvif->lvif_ifllevent = EVENTHANDLER_REGISTER(iflladdr_event, 2835 lkpi_vif_iflladdr, vif, EVENTHANDLER_PRI_ANY); 2836 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2837 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2838 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2839 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2840 vif->bss_conf.qos = false; 2841 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2842 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2843 vif->cfg.aid = 0; 2844 vif->cfg.assoc = false; 2845 vif->cfg.idle = true; 2846 vif->cfg.ps = false; 2847 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2848 /* 2849 * We need to initialize it to something as the bss_info_changed call 2850 * will try to copy from it in iwlwifi and NULL is a panic. 2851 * We will set the proper one in scan_to_auth() before being assoc. 2852 */ 2853 vif->bss_conf.bssid = ieee80211broadcastaddr; 2854 #endif 2855 #if 0 2856 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2857 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2858 vif->bss_conf.beacon_int = ic->ic_bintval; 2859 /* iwlwifi bug. */ 2860 if (vif->bss_conf.beacon_int < 16) 2861 vif->bss_conf.beacon_int = 16; 2862 #endif 2863 2864 /* Link Config */ 2865 vif->link_conf[0] = &vif->bss_conf; 2866 for (i = 0; i < nitems(vif->link_conf); i++) { 2867 IMPROVE("more than 1 link one day"); 2868 } 2869 2870 /* Setup queue defaults; driver may override in (*add_interface). */ 2871 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2872 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2873 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2874 else if (hw->queues >= IEEE80211_NUM_ACS) 2875 vif->hw_queue[i] = i; 2876 else 2877 vif->hw_queue[i] = 0; 2878 2879 /* Initialize the queue to running. Stopped? */ 2880 lvif->hw_queue_stopped[i] = false; 2881 } 2882 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2883 2884 IMPROVE(); 2885 2886 error = lkpi_80211_mo_start(hw); 2887 if (error != 0) { 2888 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2889 mtx_destroy(&lvif->mtx); 2890 free(lvif, M_80211_VAP); 2891 return (NULL); 2892 } 2893 2894 error = lkpi_80211_mo_add_interface(hw, vif); 2895 if (error != 0) { 2896 IMPROVE(); /* XXX-BZ mo_stop()? */ 2897 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2898 mtx_destroy(&lvif->mtx); 2899 free(lvif, M_80211_VAP); 2900 return (NULL); 2901 } 2902 2903 LKPI_80211_LHW_LVIF_LOCK(lhw); 2904 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2905 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2906 2907 /* Set bss_info. */ 2908 changed = 0; 2909 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2910 2911 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2912 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2913 LKPI_80211_LHW_LOCK(lhw); 2914 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2915 2916 bzero(&txqp, sizeof(txqp)); 2917 txqp.cw_min = 15; 2918 txqp.cw_max = 1023; 2919 txqp.txop = 0; 2920 txqp.aifs = 2; 2921 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2922 if (error != 0) 2923 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2924 __func__, ac, error); 2925 } 2926 LKPI_80211_LHW_UNLOCK(lhw); 2927 changed = BSS_CHANGED_QOS; 2928 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2929 2930 /* Force MC init. */ 2931 lkpi_update_mcast_filter(ic, true); 2932 2933 IMPROVE(); 2934 2935 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2936 2937 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2938 lvif->iv_newstate = vap->iv_newstate; 2939 vap->iv_newstate = lkpi_iv_newstate; 2940 lvif->iv_update_bss = vap->iv_update_bss; 2941 vap->iv_update_bss = lkpi_iv_update_bss; 2942 2943 /* Key management. */ 2944 if (lhw->ops->set_key != NULL) { 2945 #ifdef LKPI_80211_HW_CRYPTO 2946 vap->iv_key_set = lkpi_iv_key_set; 2947 vap->iv_key_delete = lkpi_iv_key_delete; 2948 #endif 2949 } 2950 2951 #ifdef LKPI_80211_HT 2952 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 2953 #endif 2954 2955 ieee80211_ratectl_init(vap); 2956 2957 /* Complete setup. */ 2958 ieee80211_vap_attach(vap, ieee80211_media_change, 2959 ieee80211_media_status, mac); 2960 2961 if (hw->max_listen_interval == 0) 2962 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2963 hw->conf.listen_interval = hw->max_listen_interval; 2964 ic->ic_set_channel(ic); 2965 2966 /* XXX-BZ do we need to be able to update these? */ 2967 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2968 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2969 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2970 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2971 /* any others? */ 2972 IMPROVE(); 2973 2974 return (vap); 2975 } 2976 2977 void 2978 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2979 { 2980 2981 wiphy_unregister(hw->wiphy); 2982 linuxkpi_ieee80211_ifdetach(hw); 2983 2984 IMPROVE(); 2985 } 2986 2987 void 2988 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2989 { 2990 2991 TODO(); 2992 } 2993 2994 static void 2995 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2996 { 2997 struct ieee80211com *ic; 2998 struct lkpi_hw *lhw; 2999 struct ieee80211_hw *hw; 3000 struct lkpi_vif *lvif; 3001 struct ieee80211_vif *vif; 3002 3003 lvif = VAP_TO_LVIF(vap); 3004 vif = LVIF_TO_VIF(lvif); 3005 ic = vap->iv_ic; 3006 lhw = ic->ic_softc; 3007 hw = LHW_TO_HW(lhw); 3008 3009 EVENTHANDLER_DEREGISTER(iflladdr_event, lvif->lvif_ifllevent); 3010 3011 LKPI_80211_LHW_LVIF_LOCK(lhw); 3012 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 3013 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3014 3015 ieee80211_ratectl_deinit(vap); 3016 ieee80211_vap_detach(vap); 3017 3018 IMPROVE("clear up other bits in this state"); 3019 3020 lkpi_80211_mo_remove_interface(hw, vif); 3021 3022 /* Single VAP, so we can do this here. */ 3023 lkpi_80211_mo_stop(hw); 3024 3025 mtx_destroy(&lvif->mtx); 3026 free(lvif, M_80211_VAP); 3027 } 3028 3029 static void 3030 lkpi_ic_update_mcast(struct ieee80211com *ic) 3031 { 3032 3033 lkpi_update_mcast_filter(ic, false); 3034 TRACEOK(); 3035 } 3036 3037 static void 3038 lkpi_ic_update_promisc(struct ieee80211com *ic) 3039 { 3040 3041 UNIMPLEMENTED; 3042 } 3043 3044 static void 3045 lkpi_ic_update_chw(struct ieee80211com *ic) 3046 { 3047 3048 UNIMPLEMENTED; 3049 } 3050 3051 /* Start / stop device. */ 3052 static void 3053 lkpi_ic_parent(struct ieee80211com *ic) 3054 { 3055 struct lkpi_hw *lhw; 3056 #ifdef HW_START_STOP 3057 struct ieee80211_hw *hw; 3058 int error; 3059 #endif 3060 bool start_all; 3061 3062 IMPROVE(); 3063 3064 lhw = ic->ic_softc; 3065 #ifdef HW_START_STOP 3066 hw = LHW_TO_HW(lhw); 3067 #endif 3068 start_all = false; 3069 3070 /* IEEE80211_UNLOCK(ic); */ 3071 LKPI_80211_LHW_LOCK(lhw); 3072 if (ic->ic_nrunning > 0) { 3073 #ifdef HW_START_STOP 3074 error = lkpi_80211_mo_start(hw); 3075 if (error == 0) 3076 #endif 3077 start_all = true; 3078 } else { 3079 #ifdef HW_START_STOP 3080 lkpi_80211_mo_stop(hw); 3081 #endif 3082 } 3083 LKPI_80211_LHW_UNLOCK(lhw); 3084 /* IEEE80211_LOCK(ic); */ 3085 3086 if (start_all) 3087 ieee80211_start_all(ic); 3088 } 3089 3090 bool 3091 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 3092 size_t ie_ids_len) 3093 { 3094 int i; 3095 3096 for (i = 0; i < ie_ids_len; i++) { 3097 if (ie == *ie_ids) 3098 return (true); 3099 } 3100 3101 return (false); 3102 } 3103 3104 /* Return true if skipped; false if error. */ 3105 bool 3106 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 3107 { 3108 size_t x; 3109 uint8_t l; 3110 3111 x = *xp; 3112 3113 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 3114 __func__, x, ies_len, ies)); 3115 l = ies[x + 1]; 3116 x += 2 + l; 3117 3118 if (x > ies_len) 3119 return (false); 3120 3121 *xp = x; 3122 return (true); 3123 } 3124 3125 static uint8_t * 3126 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 3127 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 3128 { 3129 struct ieee80211_supported_band *supband; 3130 struct linuxkpi_ieee80211_channel *channels; 3131 struct ieee80211com *ic; 3132 const struct ieee80211_channel *chan; 3133 const struct ieee80211_rateset *rs; 3134 uint8_t *pb; 3135 int band, i; 3136 3137 ic = vap->iv_ic; 3138 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3139 if ((band_mask & (1 << band)) == 0) 3140 continue; 3141 3142 supband = hw->wiphy->bands[band]; 3143 /* 3144 * This should not happen; 3145 * band_mask is a bitmask of valid bands to scan on. 3146 */ 3147 if (supband == NULL || supband->n_channels == 0) 3148 continue; 3149 3150 /* Find a first channel to get the mode and rates from. */ 3151 channels = supband->channels; 3152 chan = NULL; 3153 for (i = 0; i < supband->n_channels; i++) { 3154 3155 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3156 continue; 3157 3158 chan = ieee80211_find_channel(ic, 3159 channels[i].center_freq, 0); 3160 if (chan != NULL) 3161 break; 3162 } 3163 3164 /* This really should not happen. */ 3165 if (chan == NULL) 3166 continue; 3167 3168 pb = p; 3169 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 3170 p = ieee80211_add_rates(p, rs); 3171 p = ieee80211_add_xrates(p, rs); 3172 3173 #if defined(LKPI_80211_HT) 3174 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 3175 struct ieee80211_channel *c; 3176 3177 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3178 vap->iv_flags_ht); 3179 p = ieee80211_add_htcap_ch(p, vap, c); 3180 } 3181 #endif 3182 #if defined(LKPI_80211_VHT) 3183 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 3184 struct ieee80211_channel *c; 3185 3186 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3187 vap->iv_flags_ht); 3188 c = ieee80211_vht_adjust_channel(ic, c, 3189 vap->iv_vht_flags); 3190 p = ieee80211_add_vhtcap_ch(p, vap, c); 3191 } 3192 #endif 3193 3194 scan_ies->ies[band] = pb; 3195 scan_ies->len[band] = p - pb; 3196 } 3197 3198 /* Add common_ies */ 3199 pb = p; 3200 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3201 vap->iv_wpa_ie != NULL) { 3202 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 3203 p += 2 + vap->iv_wpa_ie[1]; 3204 } 3205 if (vap->iv_appie_probereq != NULL) { 3206 memcpy(p, vap->iv_appie_probereq->ie_data, 3207 vap->iv_appie_probereq->ie_len); 3208 p += vap->iv_appie_probereq->ie_len; 3209 } 3210 scan_ies->common_ies = pb; 3211 scan_ies->common_ie_len = p - pb; 3212 3213 return (p); 3214 } 3215 3216 static void 3217 lkpi_ic_scan_start(struct ieee80211com *ic) 3218 { 3219 struct lkpi_hw *lhw; 3220 struct ieee80211_hw *hw; 3221 struct lkpi_vif *lvif; 3222 struct ieee80211_vif *vif; 3223 struct ieee80211_scan_state *ss; 3224 struct ieee80211vap *vap; 3225 int error; 3226 bool is_hw_scan; 3227 3228 lhw = ic->ic_softc; 3229 LKPI_80211_LHW_SCAN_LOCK(lhw); 3230 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3231 /* A scan is still running. */ 3232 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3233 return; 3234 } 3235 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3236 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3237 3238 ss = ic->ic_scan; 3239 vap = ss->ss_vap; 3240 if (vap->iv_state != IEEE80211_S_SCAN) { 3241 IMPROVE("We need to be able to scan if not in S_SCAN"); 3242 return; 3243 } 3244 3245 hw = LHW_TO_HW(lhw); 3246 if (!is_hw_scan) { 3247 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 3248 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3249 sw_scan: 3250 lvif = VAP_TO_LVIF(vap); 3251 vif = LVIF_TO_VIF(lvif); 3252 3253 if (vap->iv_state == IEEE80211_S_SCAN) 3254 lkpi_hw_conf_idle(hw, false); 3255 3256 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 3257 /* net80211::scan_start() handled PS for us. */ 3258 IMPROVE(); 3259 /* XXX Also means it is too late to flush queues? 3260 * need to check iv_sta_ps or overload? */ 3261 /* XXX want to adjust ss end time/ maxdwell? */ 3262 3263 } else { 3264 struct ieee80211_channel *c; 3265 struct ieee80211_scan_request *hw_req; 3266 struct linuxkpi_ieee80211_channel *lc, **cpp; 3267 struct cfg80211_ssid *ssids; 3268 struct cfg80211_scan_6ghz_params *s6gp; 3269 size_t chan_len, nchan, ssids_len, s6ghzlen; 3270 int band, i, ssid_count, common_ie_len; 3271 uint32_t band_mask; 3272 uint8_t *ie, *ieend; 3273 bool running; 3274 3275 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 3276 ssids_len = ssid_count * sizeof(*ssids); 3277 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 3278 3279 band_mask = 0; 3280 nchan = 0; 3281 for (i = ss->ss_next; i < ss->ss_last; i++) { 3282 nchan++; 3283 band = lkpi_net80211_chan_to_nl80211_band( 3284 ss->ss_chans[ss->ss_next + i]); 3285 band_mask |= (1 << band); 3286 } 3287 3288 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 3289 IMPROVE("individual band scans not yet supported, only scanning first band"); 3290 /* In theory net80211 should drive this. */ 3291 /* Probably we need to add local logic for now; 3292 * need to deal with scan_complete 3293 * and cancel_scan and keep local state. 3294 * Also cut the nchan down above. 3295 */ 3296 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 3297 } 3298 3299 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 3300 3301 common_ie_len = 0; 3302 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3303 vap->iv_wpa_ie != NULL) 3304 common_ie_len += vap->iv_wpa_ie[1]; 3305 if (vap->iv_appie_probereq != NULL) 3306 common_ie_len += vap->iv_appie_probereq->ie_len; 3307 3308 /* We would love to check this at an earlier stage... */ 3309 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 3310 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 3311 "wiphy->max_scan_ie_len %d\n", __func__, 3312 common_ie_len, hw->wiphy->max_scan_ie_len); 3313 } 3314 3315 hw_req = malloc(sizeof(*hw_req) + ssids_len + 3316 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 3317 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 3318 3319 hw_req->req.flags = 0; /* XXX ??? */ 3320 /* hw_req->req.wdev */ 3321 hw_req->req.wiphy = hw->wiphy; 3322 hw_req->req.no_cck = false; /* XXX */ 3323 #if 0 3324 /* This seems to pessimise default scanning behaviour. */ 3325 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 3326 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 3327 #endif 3328 #ifdef __notyet__ 3329 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 3330 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 3331 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 3332 #endif 3333 eth_broadcast_addr(hw_req->req.bssid); 3334 3335 hw_req->req.n_channels = nchan; 3336 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 3337 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 3338 for (i = 0; i < nchan; i++) { 3339 *(cpp + i) = 3340 (struct linuxkpi_ieee80211_channel *)(lc + i); 3341 } 3342 for (i = 0; i < nchan; i++) { 3343 c = ss->ss_chans[ss->ss_next + i]; 3344 3345 lc->hw_value = c->ic_ieee; 3346 lc->center_freq = c->ic_freq; /* XXX */ 3347 /* lc->flags */ 3348 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 3349 lc->max_power = c->ic_maxpower; 3350 /* lc-> ... */ 3351 lc++; 3352 } 3353 3354 hw_req->req.n_ssids = ssid_count; 3355 if (hw_req->req.n_ssids > 0) { 3356 ssids = (struct cfg80211_ssid *)lc; 3357 hw_req->req.ssids = ssids; 3358 for (i = 0; i < ssid_count; i++) { 3359 ssids->ssid_len = ss->ss_ssid[i].len; 3360 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 3361 ss->ss_ssid[i].len); 3362 ssids++; 3363 } 3364 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 3365 } else { 3366 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 3367 } 3368 3369 /* 6GHz one day. */ 3370 hw_req->req.n_6ghz_params = 0; 3371 hw_req->req.scan_6ghz_params = NULL; 3372 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 3373 /* s6gp->... */ 3374 3375 ie = ieend = (uint8_t *)s6gp; 3376 /* Copy per-band IEs, copy common IEs */ 3377 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 3378 hw_req->req.ie = ie; 3379 hw_req->req.ie_len = ieend - ie; 3380 3381 lvif = VAP_TO_LVIF(vap); 3382 vif = LVIF_TO_VIF(lvif); 3383 3384 LKPI_80211_LHW_SCAN_LOCK(lhw); 3385 /* Re-check under lock. */ 3386 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 3387 if (!running) { 3388 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 3389 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 3390 3391 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 3392 lhw->hw_req = hw_req; 3393 } 3394 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3395 if (running) { 3396 free(hw_req, M_LKPI80211); 3397 return; 3398 } 3399 3400 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 3401 if (error != 0) { 3402 ieee80211_cancel_scan(vap); 3403 3404 /* 3405 * ieee80211_scan_completed must be called in either 3406 * case of error or none. So let the free happen there 3407 * and only there. 3408 * That would be fine in theory but in practice drivers 3409 * behave differently: 3410 * ath10k does not return hw_scan until after scan_complete 3411 * and can then still return an error. 3412 * rtw88 can return 1 or -EBUSY without scan_complete 3413 * iwlwifi can return various errors before scan starts 3414 * ... 3415 * So we cannot rely on that behaviour and have to check 3416 * and balance between both code paths. 3417 */ 3418 LKPI_80211_LHW_SCAN_LOCK(lhw); 3419 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3420 free(lhw->hw_req, M_LKPI80211); 3421 lhw->hw_req = NULL; 3422 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3423 } 3424 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3425 3426 /* 3427 * XXX-SIGH magic number. 3428 * rtw88 has a magic "return 1" if offloading scan is 3429 * not possible. Fall back to sw scan in that case. 3430 */ 3431 if (error == 1) { 3432 LKPI_80211_LHW_SCAN_LOCK(lhw); 3433 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 3434 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3435 /* 3436 * XXX If we clear this now and later a driver 3437 * thinks it * can do a hw_scan again, we will 3438 * currently not re-enable it? 3439 */ 3440 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3441 ieee80211_start_scan(vap, 3442 IEEE80211_SCAN_ACTIVE | 3443 IEEE80211_SCAN_NOPICK | 3444 IEEE80211_SCAN_ONCE, 3445 IEEE80211_SCAN_FOREVER, 3446 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 3447 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 3448 vap->iv_des_nssid, vap->iv_des_ssid); 3449 goto sw_scan; 3450 } 3451 3452 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 3453 __func__, error); 3454 } 3455 } 3456 } 3457 3458 static void 3459 lkpi_ic_scan_end(struct ieee80211com *ic) 3460 { 3461 struct lkpi_hw *lhw; 3462 bool is_hw_scan; 3463 3464 lhw = ic->ic_softc; 3465 LKPI_80211_LHW_SCAN_LOCK(lhw); 3466 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 3467 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3468 return; 3469 } 3470 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3471 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3472 3473 if (!is_hw_scan) { 3474 struct ieee80211_scan_state *ss; 3475 struct ieee80211vap *vap; 3476 struct ieee80211_hw *hw; 3477 struct lkpi_vif *lvif; 3478 struct ieee80211_vif *vif; 3479 3480 ss = ic->ic_scan; 3481 vap = ss->ss_vap; 3482 hw = LHW_TO_HW(lhw); 3483 lvif = VAP_TO_LVIF(vap); 3484 vif = LVIF_TO_VIF(lvif); 3485 3486 lkpi_80211_mo_sw_scan_complete(hw, vif); 3487 3488 /* Send PS to stop buffering if n80211 does not for us? */ 3489 3490 if (vap->iv_state == IEEE80211_S_SCAN) 3491 lkpi_hw_conf_idle(hw, true); 3492 } 3493 } 3494 3495 static void 3496 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 3497 unsigned long maxdwell) 3498 { 3499 struct lkpi_hw *lhw; 3500 bool is_hw_scan; 3501 3502 lhw = ss->ss_ic->ic_softc; 3503 LKPI_80211_LHW_SCAN_LOCK(lhw); 3504 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3505 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3506 if (!is_hw_scan) 3507 lhw->ic_scan_curchan(ss, maxdwell); 3508 } 3509 3510 static void 3511 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 3512 { 3513 struct lkpi_hw *lhw; 3514 bool is_hw_scan; 3515 3516 lhw = ss->ss_ic->ic_softc; 3517 LKPI_80211_LHW_SCAN_LOCK(lhw); 3518 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3519 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3520 if (!is_hw_scan) 3521 lhw->ic_scan_mindwell(ss); 3522 } 3523 3524 static void 3525 lkpi_ic_set_channel(struct ieee80211com *ic) 3526 { 3527 struct lkpi_hw *lhw; 3528 struct ieee80211_hw *hw; 3529 struct ieee80211_channel *c; 3530 struct linuxkpi_ieee80211_channel *chan; 3531 int error; 3532 bool hw_scan_running; 3533 3534 lhw = ic->ic_softc; 3535 3536 /* If we do not support (*config)() save us the work. */ 3537 if (lhw->ops->config == NULL) 3538 return; 3539 3540 /* If we have a hw_scan running do not switch channels. */ 3541 LKPI_80211_LHW_SCAN_LOCK(lhw); 3542 hw_scan_running = 3543 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3544 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3545 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3546 if (hw_scan_running) 3547 return; 3548 3549 c = ic->ic_curchan; 3550 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3551 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3552 c, lhw->ops->config); 3553 return; 3554 } 3555 3556 chan = lkpi_find_lkpi80211_chan(lhw, c); 3557 if (chan == NULL) { 3558 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3559 c, chan); 3560 return; 3561 } 3562 3563 /* XXX max power for scanning? */ 3564 IMPROVE(); 3565 3566 hw = LHW_TO_HW(lhw); 3567 cfg80211_chandef_create(&hw->conf.chandef, chan, 3568 #ifdef LKPI_80211_HT 3569 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 3570 #endif 3571 NL80211_CHAN_NO_HT); 3572 3573 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3574 if (error != 0 && error != EOPNOTSUPP) { 3575 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3576 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3577 /* XXX should we unroll to the previous chandef? */ 3578 IMPROVE(); 3579 } else { 3580 /* Update radiotap channels as well. */ 3581 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3582 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3583 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3584 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3585 } 3586 3587 /* Currently PS is hard coded off! Not sure it belongs here. */ 3588 IMPROVE(); 3589 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3590 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3591 hw->conf.flags &= ~IEEE80211_CONF_PS; 3592 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3593 if (error != 0 && error != EOPNOTSUPP) 3594 ic_printf(ic, "ERROR: %s: config %#0x returned " 3595 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3596 error); 3597 } 3598 } 3599 3600 static struct ieee80211_node * 3601 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3602 const uint8_t mac[IEEE80211_ADDR_LEN]) 3603 { 3604 struct ieee80211com *ic; 3605 struct lkpi_hw *lhw; 3606 struct ieee80211_node *ni; 3607 struct ieee80211_hw *hw; 3608 struct lkpi_sta *lsta; 3609 3610 ic = vap->iv_ic; 3611 lhw = ic->ic_softc; 3612 3613 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3614 if (lhw->ic_node_alloc == NULL) 3615 return (NULL); 3616 3617 ni = lhw->ic_node_alloc(vap, mac); 3618 if (ni == NULL) 3619 return (NULL); 3620 3621 hw = LHW_TO_HW(lhw); 3622 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3623 if (lsta == NULL) { 3624 if (lhw->ic_node_free != NULL) 3625 lhw->ic_node_free(ni); 3626 return (NULL); 3627 } 3628 3629 return (ni); 3630 } 3631 3632 static int 3633 lkpi_ic_node_init(struct ieee80211_node *ni) 3634 { 3635 struct ieee80211com *ic; 3636 struct lkpi_hw *lhw; 3637 int error; 3638 3639 ic = ni->ni_ic; 3640 lhw = ic->ic_softc; 3641 3642 if (lhw->ic_node_init != NULL) { 3643 error = lhw->ic_node_init(ni); 3644 if (error != 0) 3645 return (error); 3646 } 3647 3648 /* XXX-BZ Sync other state over. */ 3649 IMPROVE(); 3650 3651 return (0); 3652 } 3653 3654 static void 3655 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3656 { 3657 struct ieee80211com *ic; 3658 struct lkpi_hw *lhw; 3659 3660 ic = ni->ni_ic; 3661 lhw = ic->ic_softc; 3662 3663 /* XXX-BZ remove from driver, ... */ 3664 IMPROVE(); 3665 3666 if (lhw->ic_node_cleanup != NULL) 3667 lhw->ic_node_cleanup(ni); 3668 } 3669 3670 static void 3671 lkpi_ic_node_free(struct ieee80211_node *ni) 3672 { 3673 struct ieee80211com *ic; 3674 struct lkpi_hw *lhw; 3675 struct lkpi_sta *lsta; 3676 3677 ic = ni->ni_ic; 3678 lhw = ic->ic_softc; 3679 lsta = ni->ni_drv_data; 3680 3681 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 3682 3683 /* 3684 * Pass in the original ni just in case of error we could check that 3685 * it is the same as lsta->ni. 3686 */ 3687 lkpi_lsta_free(lsta, ni); 3688 3689 if (lhw->ic_node_free != NULL) 3690 lhw->ic_node_free(ni); 3691 } 3692 3693 static int 3694 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3695 const struct ieee80211_bpf_params *params __unused) 3696 { 3697 struct lkpi_sta *lsta; 3698 3699 lsta = ni->ni_drv_data; 3700 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3701 if (!lsta->added_to_drv || !lsta->txq_ready) { 3702 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3703 /* 3704 * Free the mbuf (do NOT release ni ref for the m_pkthdr.rcvif! 3705 * ieee80211_raw_output() does that in case of error). 3706 */ 3707 m_free(m); 3708 return (ENETDOWN); 3709 } 3710 3711 /* Queue the packet and enqueue the task to handle it. */ 3712 mbufq_enqueue(&lsta->txq, m); 3713 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3714 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3715 3716 #ifdef LINUXKPI_DEBUG_80211 3717 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3718 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3719 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3720 mbufq_len(&lsta->txq)); 3721 #endif 3722 3723 return (0); 3724 } 3725 3726 static void 3727 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3728 { 3729 struct ieee80211_node *ni; 3730 #ifndef LKPI_80211_HW_CRYPTO 3731 struct ieee80211_frame *wh; 3732 #endif 3733 struct ieee80211_key *k; 3734 struct sk_buff *skb; 3735 struct ieee80211com *ic; 3736 struct lkpi_hw *lhw; 3737 struct ieee80211_hw *hw; 3738 struct lkpi_vif *lvif; 3739 struct ieee80211_vif *vif; 3740 struct ieee80211_channel *c; 3741 struct ieee80211_tx_control control; 3742 struct ieee80211_tx_info *info; 3743 struct ieee80211_sta *sta; 3744 struct ieee80211_hdr *hdr; 3745 struct lkpi_txq *ltxq; 3746 void *buf; 3747 uint8_t ac, tid; 3748 3749 M_ASSERTPKTHDR(m); 3750 #ifdef LINUXKPI_DEBUG_80211 3751 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3752 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3753 #endif 3754 3755 ni = lsta->ni; 3756 k = NULL; 3757 #ifndef LKPI_80211_HW_CRYPTO 3758 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3759 wh = mtod(m, struct ieee80211_frame *); 3760 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3761 /* Retrieve key for TX && do software encryption. */ 3762 k = ieee80211_crypto_encap(ni, m); 3763 if (k == NULL) { 3764 ieee80211_free_node(ni); 3765 m_freem(m); 3766 return; 3767 } 3768 } 3769 #endif 3770 3771 ic = ni->ni_ic; 3772 lhw = ic->ic_softc; 3773 hw = LHW_TO_HW(lhw); 3774 c = ni->ni_chan; 3775 3776 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3777 struct lkpi_radiotap_tx_hdr *rtap; 3778 3779 rtap = &lhw->rtap_tx; 3780 rtap->wt_flags = 0; 3781 if (k != NULL) 3782 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3783 if (m->m_flags & M_FRAG) 3784 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3785 IMPROVE(); 3786 rtap->wt_rate = 0; 3787 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3788 rtap->wt_chan_freq = htole16(c->ic_freq); 3789 rtap->wt_chan_flags = htole16(c->ic_flags); 3790 } 3791 3792 ieee80211_radiotap_tx(ni->ni_vap, m); 3793 } 3794 3795 /* 3796 * net80211 should handle hw->extra_tx_headroom. 3797 * Though for as long as we are copying we don't mind. 3798 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3799 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3800 */ 3801 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3802 if (skb == NULL) { 3803 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3804 ieee80211_free_node(ni); 3805 m_freem(m); 3806 return; 3807 } 3808 skb_reserve(skb, hw->extra_tx_headroom); 3809 3810 /* XXX-BZ we need a SKB version understanding mbuf. */ 3811 /* Save the mbuf for ieee80211_tx_complete(). */ 3812 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3813 skb->m = m; 3814 #if 0 3815 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3816 #else 3817 buf = skb_put(skb, m->m_pkthdr.len); 3818 m_copydata(m, 0, m->m_pkthdr.len, buf); 3819 #endif 3820 /* Save the ni. */ 3821 m->m_pkthdr.PH_loc.ptr = ni; 3822 3823 lvif = VAP_TO_LVIF(ni->ni_vap); 3824 vif = LVIF_TO_VIF(lvif); 3825 3826 hdr = (void *)skb->data; 3827 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3828 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3829 if (!ieee80211_is_data(hdr->frame_control)) { 3830 /* MGMT and CTRL frames go on TID 7/VO. */ 3831 skb->priority = 7; 3832 ac = IEEE80211_AC_VO; 3833 } else { 3834 /* Other non-QOS traffic goes to BE. */ 3835 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 3836 skb->priority = 0; 3837 ac = IEEE80211_AC_BE; 3838 } 3839 } else { 3840 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3841 ac = ieee80211e_up_to_ac[tid & 7]; 3842 } 3843 skb_set_queue_mapping(skb, ac); 3844 3845 info = IEEE80211_SKB_CB(skb); 3846 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3847 /* Slight delay; probably only happens on scanning so fine? */ 3848 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3849 c = ic->ic_curchan; 3850 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3851 info->hw_queue = vif->hw_queue[ac]; 3852 if (m->m_flags & M_EAPOL) 3853 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3854 info->control.vif = vif; 3855 /* XXX-BZ info->control.rates */ 3856 #ifdef __notyet__ 3857 #ifdef LKPI_80211_HT 3858 info->control.rts_cts_rate_idx= 3859 info->control.use_rts= /* RTS */ 3860 info->control.use_cts_prot= /* RTS/CTS*/ 3861 #endif 3862 #endif 3863 3864 sta = LSTA_TO_STA(lsta); 3865 #ifdef LKPI_80211_HW_CRYPTO 3866 info->control.hw_key = lsta->kc; 3867 #endif 3868 3869 IMPROVE(); 3870 3871 ltxq = NULL; 3872 if (!ieee80211_is_data_present(hdr->frame_control)) { 3873 if (vif->type == NL80211_IFTYPE_STATION && 3874 lsta->added_to_drv && 3875 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3876 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3877 } else if (lsta->added_to_drv && 3878 sta->txq[skb->priority] != NULL) { 3879 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3880 } 3881 if (ltxq == NULL) 3882 goto ops_tx; 3883 3884 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3885 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3886 3887 LKPI_80211_LTXQ_LOCK(ltxq); 3888 skb_queue_tail(<xq->skbq, skb); 3889 #ifdef LINUXKPI_DEBUG_80211 3890 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3891 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3892 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3893 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3894 __func__, __LINE__, 3895 curthread->td_tid, (unsigned int)ticks, 3896 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3897 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3898 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3899 #endif 3900 LKPI_80211_LTXQ_UNLOCK(ltxq); 3901 LKPI_80211_LHW_LOCK(lhw); 3902 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3903 LKPI_80211_LHW_UNLOCK(lhw); 3904 return; 3905 3906 ops_tx: 3907 #ifdef LINUXKPI_DEBUG_80211 3908 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3909 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3910 "TX ac %d prio %u qmap %u\n", 3911 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3912 skb, ac, skb->priority, skb->qmap); 3913 #endif 3914 memset(&control, 0, sizeof(control)); 3915 control.sta = sta; 3916 LKPI_80211_LHW_LOCK(lhw); 3917 lkpi_80211_mo_tx(hw, &control, skb); 3918 LKPI_80211_LHW_UNLOCK(lhw); 3919 } 3920 3921 static void 3922 lkpi_80211_txq_task(void *ctx, int pending) 3923 { 3924 struct lkpi_sta *lsta; 3925 struct mbufq mq; 3926 struct mbuf *m; 3927 bool shall_tx; 3928 3929 lsta = ctx; 3930 3931 #ifdef LINUXKPI_DEBUG_80211 3932 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3933 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3934 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3935 pending, mbufq_len(&lsta->txq)); 3936 #endif 3937 3938 mbufq_init(&mq, IFQ_MAXLEN); 3939 3940 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3941 /* 3942 * Do not re-check lsta->txq_ready here; we may have a pending 3943 * disassoc/deauth frame still. On the contrary if txq_ready is 3944 * false we do not have a valid sta anymore in the firmware so no 3945 * point to try to TX. 3946 * We also use txq_ready as a semaphore and will drain the txq manually 3947 * if needed on our way towards SCAN/INIT in the state machine. 3948 */ 3949 shall_tx = lsta->added_to_drv && lsta->txq_ready; 3950 if (__predict_true(shall_tx)) 3951 mbufq_concat(&mq, &lsta->txq); 3952 /* 3953 * else a state change will push the packets out manually or 3954 * lkpi_lsta_free() will drain the lsta->txq and free the mbufs. 3955 */ 3956 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3957 3958 m = mbufq_dequeue(&mq); 3959 while (m != NULL) { 3960 lkpi_80211_txq_tx_one(lsta, m); 3961 m = mbufq_dequeue(&mq); 3962 } 3963 } 3964 3965 static int 3966 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3967 { 3968 3969 /* XXX TODO */ 3970 IMPROVE(); 3971 3972 /* Quick and dirty cheating hack. */ 3973 struct ieee80211_node *ni; 3974 3975 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3976 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3977 } 3978 3979 #ifdef LKPI_80211_HT 3980 static int 3981 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3982 const uint8_t *frm, const uint8_t *efrm) 3983 { 3984 struct ieee80211com *ic; 3985 struct lkpi_hw *lhw; 3986 3987 ic = ni->ni_ic; 3988 lhw = ic->ic_softc; 3989 3990 IMPROVE_HT(); 3991 3992 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 3993 } 3994 3995 static int 3996 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 3997 { 3998 struct ieee80211com *ic; 3999 struct lkpi_hw *lhw; 4000 4001 ic = ni->ni_ic; 4002 lhw = ic->ic_softc; 4003 4004 IMPROVE_HT(); 4005 4006 return (lhw->ic_send_action(ni, category, action, sa)); 4007 } 4008 4009 4010 static int 4011 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4012 { 4013 struct ieee80211com *ic; 4014 struct lkpi_hw *lhw; 4015 4016 ic = ni->ni_ic; 4017 lhw = ic->ic_softc; 4018 4019 IMPROVE_HT(); 4020 4021 return (lhw->ic_ampdu_enable(ni, tap)); 4022 } 4023 4024 static int 4025 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4026 int dialogtoken, int baparamset, int batimeout) 4027 { 4028 struct ieee80211com *ic; 4029 struct lkpi_hw *lhw; 4030 4031 ic = ni->ni_ic; 4032 lhw = ic->ic_softc; 4033 4034 IMPROVE_HT(); 4035 4036 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 4037 } 4038 4039 static int 4040 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4041 int status, int baparamset, int batimeout) 4042 { 4043 struct ieee80211com *ic; 4044 struct lkpi_hw *lhw; 4045 4046 ic = ni->ni_ic; 4047 lhw = ic->ic_softc; 4048 4049 IMPROVE_HT(); 4050 4051 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 4052 } 4053 4054 static void 4055 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4056 { 4057 struct ieee80211com *ic; 4058 struct lkpi_hw *lhw; 4059 4060 ic = ni->ni_ic; 4061 lhw = ic->ic_softc; 4062 4063 IMPROVE_HT(); 4064 4065 lhw->ic_addba_stop(ni, tap); 4066 } 4067 4068 static void 4069 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 4070 { 4071 struct ieee80211com *ic; 4072 struct lkpi_hw *lhw; 4073 4074 ic = ni->ni_ic; 4075 lhw = ic->ic_softc; 4076 4077 IMPROVE_HT(); 4078 4079 lhw->ic_addba_response_timeout(ni, tap); 4080 } 4081 4082 static void 4083 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 4084 int status) 4085 { 4086 struct ieee80211com *ic; 4087 struct lkpi_hw *lhw; 4088 4089 ic = ni->ni_ic; 4090 lhw = ic->ic_softc; 4091 4092 IMPROVE_HT(); 4093 4094 lhw->ic_bar_response(ni, tap, status); 4095 } 4096 4097 static int 4098 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 4099 int baparamset, int batimeout, int baseqctl) 4100 { 4101 struct ieee80211com *ic; 4102 struct lkpi_hw *lhw; 4103 struct ieee80211_hw *hw; 4104 struct ieee80211vap *vap; 4105 struct lkpi_vif *lvif; 4106 struct ieee80211_vif *vif; 4107 struct lkpi_sta *lsta; 4108 struct ieee80211_sta *sta; 4109 struct ieee80211_ampdu_params params; 4110 int error; 4111 4112 ic = ni->ni_ic; 4113 lhw = ic->ic_softc; 4114 hw = LHW_TO_HW(lhw); 4115 vap = ni->ni_vap; 4116 lvif = VAP_TO_LVIF(vap); 4117 vif = LVIF_TO_VIF(lvif); 4118 lsta = ni->ni_drv_data; 4119 sta = LSTA_TO_STA(lsta); 4120 4121 params.sta = sta; 4122 params.action = IEEE80211_AMPDU_RX_START; 4123 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 4124 if (params.buf_size == 0) 4125 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 4126 else 4127 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 4128 if (params.buf_size > hw->max_rx_aggregation_subframes) 4129 params.buf_size = hw->max_rx_aggregation_subframes; 4130 params.timeout = le16toh(batimeout); 4131 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 4132 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 4133 params.amsdu = false; 4134 4135 IMPROVE_HT("Do we need to distinguish based on SUPPORTS_REORDERING_BUFFER?"); 4136 4137 /* This may call kalloc. Make sure we can sleep. */ 4138 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4139 if (error != 0) { 4140 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4141 __func__, error, ni, rap); 4142 return (error); 4143 } 4144 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 4145 4146 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 4147 return (error); 4148 } 4149 4150 static void 4151 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 4152 { 4153 struct ieee80211com *ic; 4154 struct lkpi_hw *lhw; 4155 struct ieee80211_hw *hw; 4156 struct ieee80211vap *vap; 4157 struct lkpi_vif *lvif; 4158 struct ieee80211_vif *vif; 4159 struct lkpi_sta *lsta; 4160 struct ieee80211_sta *sta; 4161 struct ieee80211_ampdu_params params; 4162 int error; 4163 uint8_t tid; 4164 4165 ic = ni->ni_ic; 4166 lhw = ic->ic_softc; 4167 4168 /* 4169 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 4170 * we did not START. Some drivers pass it down to firmware which will 4171 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 4172 * ieee80211_ht_node_init() amongst others which will iterate over all 4173 * tid and call ic_ampdu_rx_stop() unconditionally. 4174 * XXX net80211 should probably be more "gentle" in these cases and 4175 * track some state itself. 4176 */ 4177 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 4178 goto net80211_only; 4179 4180 hw = LHW_TO_HW(lhw); 4181 vap = ni->ni_vap; 4182 lvif = VAP_TO_LVIF(vap); 4183 vif = LVIF_TO_VIF(lvif); 4184 lsta = ni->ni_drv_data; 4185 sta = LSTA_TO_STA(lsta); 4186 4187 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 4188 for (tid = 0; tid < WME_NUM_TID; tid++) { 4189 if (&ni->ni_rx_ampdu[tid] == rap) 4190 break; 4191 } 4192 4193 params.sta = sta; 4194 params.action = IEEE80211_AMPDU_RX_STOP; 4195 params.buf_size = 0; 4196 params.timeout = 0; 4197 params.ssn = 0; 4198 params.tid = tid; 4199 params.amsdu = false; 4200 4201 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4202 if (error != 0) 4203 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4204 __func__, error, ni, rap); 4205 4206 net80211_only: 4207 lhw->ic_ampdu_rx_stop(ni, rap); 4208 } 4209 #endif 4210 4211 static void 4212 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 4213 uint8_t *bands, int *chan_flags, enum nl80211_band band) 4214 { 4215 #ifdef LKPI_80211_HT 4216 struct ieee80211_sta_ht_cap *ht_cap; 4217 4218 ht_cap = &hw->wiphy->bands[band]->ht_cap; 4219 if (!ht_cap->ht_supported) 4220 return; 4221 4222 switch (band) { 4223 case NL80211_BAND_2GHZ: 4224 setbit(bands, IEEE80211_MODE_11NG); 4225 break; 4226 case NL80211_BAND_5GHZ: 4227 setbit(bands, IEEE80211_MODE_11NA); 4228 break; 4229 default: 4230 IMPROVE("Unsupported band %d", band); 4231 return; 4232 } 4233 4234 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 4235 4236 /* 4237 * Rather than manually checking each flag and 4238 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 4239 * simply copy the 16bits. 4240 */ 4241 ic->ic_htcaps |= ht_cap->cap; 4242 4243 /* Then deal with the other flags. */ 4244 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 4245 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 4246 #ifdef __notyet__ 4247 if (ieee80211_hw_check(hw, TX_AMSDU)) 4248 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 4249 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 4250 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 4251 IEEE80211_HTC_TX_AMSDU_AMPDU); 4252 #endif 4253 4254 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 4255 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_OFF; 4256 4257 /* Only add HT40 channels if supported. */ 4258 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 4259 chan_flags != NULL) 4260 *chan_flags |= NET80211_CBW_FLAG_HT40; 4261 #endif 4262 } 4263 4264 static void 4265 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 4266 int *n, struct ieee80211_channel *c) 4267 { 4268 struct lkpi_hw *lhw; 4269 struct ieee80211_hw *hw; 4270 struct linuxkpi_ieee80211_channel *channels; 4271 uint8_t bands[IEEE80211_MODE_BYTES]; 4272 int chan_flags, error, i, nchans; 4273 4274 /* Channels */ 4275 lhw = ic->ic_softc; 4276 hw = LHW_TO_HW(lhw); 4277 4278 /* NL80211_BAND_2GHZ */ 4279 nchans = 0; 4280 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 4281 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 4282 if (nchans > 0) { 4283 memset(bands, 0, sizeof(bands)); 4284 chan_flags = 0; 4285 setbit(bands, IEEE80211_MODE_11B); 4286 /* XXX-BZ unclear how to check for 11g. */ 4287 4288 IMPROVE("the bitrates may have flags?"); 4289 setbit(bands, IEEE80211_MODE_11G); 4290 4291 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4292 NL80211_BAND_2GHZ); 4293 4294 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 4295 for (i = 0; i < nchans && *n < maxchan; i++) { 4296 uint32_t nflags = 0; 4297 int cflags = chan_flags; 4298 4299 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4300 ic_printf(ic, "%s: Skipping disabled chan " 4301 "[%u/%u/%#x]\n", __func__, 4302 channels[i].hw_value, 4303 channels[i].center_freq, channels[i].flags); 4304 continue; 4305 } 4306 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4307 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4308 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4309 nflags |= IEEE80211_CHAN_DFS; 4310 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4311 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4312 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4313 cflags &= ~NET80211_CBW_FLAG_VHT80; 4314 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 4315 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4316 cflags &= ~NET80211_CBW_FLAG_HT40; 4317 4318 error = ieee80211_add_channel_cbw(c, maxchan, n, 4319 channels[i].hw_value, channels[i].center_freq, 4320 channels[i].max_power, 4321 nflags, bands, cflags); 4322 /* net80211::ENOBUFS: *n >= maxchans */ 4323 if (error != 0 && error != ENOBUFS) 4324 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4325 "returned error %d\n", 4326 __func__, channels[i].hw_value, 4327 channels[i].center_freq, channels[i].flags, 4328 nflags, chan_flags, cflags, error); 4329 if (error != 0) 4330 break; 4331 } 4332 } 4333 4334 /* NL80211_BAND_5GHZ */ 4335 nchans = 0; 4336 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 4337 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 4338 if (nchans > 0) { 4339 memset(bands, 0, sizeof(bands)); 4340 chan_flags = 0; 4341 setbit(bands, IEEE80211_MODE_11A); 4342 4343 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4344 NL80211_BAND_5GHZ); 4345 4346 #ifdef LKPI_80211_VHT 4347 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 4348 4349 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 4350 ic->ic_vht_cap.vht_cap_info = 4351 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 4352 4353 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 4354 chan_flags |= NET80211_CBW_FLAG_VHT80; 4355 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 4356 ic->ic_vht_cap.vht_cap_info)) 4357 chan_flags |= NET80211_CBW_FLAG_VHT160; 4358 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 4359 ic->ic_vht_cap.vht_cap_info)) 4360 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 4361 } 4362 #endif 4363 4364 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 4365 for (i = 0; i < nchans && *n < maxchan; i++) { 4366 uint32_t nflags = 0; 4367 int cflags = chan_flags; 4368 4369 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4370 ic_printf(ic, "%s: Skipping disabled chan " 4371 "[%u/%u/%#x]\n", __func__, 4372 channels[i].hw_value, 4373 channels[i].center_freq, channels[i].flags); 4374 continue; 4375 } 4376 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4377 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4378 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4379 nflags |= IEEE80211_CHAN_DFS; 4380 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4381 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4382 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4383 cflags &= ~NET80211_CBW_FLAG_VHT80; 4384 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 4385 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4386 cflags &= ~NET80211_CBW_FLAG_HT40; 4387 4388 error = ieee80211_add_channel_cbw(c, maxchan, n, 4389 channels[i].hw_value, channels[i].center_freq, 4390 channels[i].max_power, 4391 nflags, bands, cflags); 4392 /* net80211::ENOBUFS: *n >= maxchans */ 4393 if (error != 0 && error != ENOBUFS) 4394 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4395 "returned error %d\n", 4396 __func__, channels[i].hw_value, 4397 channels[i].center_freq, channels[i].flags, 4398 nflags, chan_flags, cflags, error); 4399 if (error != 0) 4400 break; 4401 } 4402 } 4403 } 4404 4405 static void * 4406 lkpi_ieee80211_ifalloc(void) 4407 { 4408 struct ieee80211com *ic; 4409 4410 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 4411 4412 /* Setting these happens later when we have device information. */ 4413 ic->ic_softc = NULL; 4414 ic->ic_name = "linuxkpi"; 4415 4416 return (ic); 4417 } 4418 4419 struct ieee80211_hw * 4420 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 4421 { 4422 struct ieee80211_hw *hw; 4423 struct lkpi_hw *lhw; 4424 struct wiphy *wiphy; 4425 int ac; 4426 4427 /* Get us and the driver data also allocated. */ 4428 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 4429 if (wiphy == NULL) 4430 return (NULL); 4431 4432 lhw = wiphy_priv(wiphy); 4433 lhw->ops = ops; 4434 4435 LKPI_80211_LHW_LOCK_INIT(lhw); 4436 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 4437 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 4438 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 4439 TAILQ_INIT(&lhw->lvif_head); 4440 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4441 lhw->txq_generation[ac] = 1; 4442 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 4443 } 4444 4445 /* Deferred RX path. */ 4446 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 4447 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 4448 mbufq_init(&lhw->rxq, IFQ_MAXLEN); 4449 lhw->rxq_stopped = false; 4450 4451 /* 4452 * XXX-BZ TODO make sure there is a "_null" function to all ops 4453 * not initialized. 4454 */ 4455 hw = LHW_TO_HW(lhw); 4456 hw->wiphy = wiphy; 4457 hw->conf.flags |= IEEE80211_CONF_IDLE; 4458 hw->priv = (void *)(lhw + 1); 4459 4460 /* BSD Specific. */ 4461 lhw->ic = lkpi_ieee80211_ifalloc(); 4462 4463 IMPROVE(); 4464 4465 return (hw); 4466 } 4467 4468 void 4469 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 4470 { 4471 struct lkpi_hw *lhw; 4472 struct mbuf *m; 4473 4474 lhw = HW_TO_LHW(hw); 4475 free(lhw->ic, M_LKPI80211); 4476 lhw->ic = NULL; 4477 4478 /* 4479 * Drain the deferred RX path. 4480 */ 4481 LKPI_80211_LHW_RXQ_LOCK(lhw); 4482 lhw->rxq_stopped = true; 4483 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4484 4485 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 4486 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 4487 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 4488 4489 /* Flush mbufq (make sure to release ni refs!). */ 4490 m = mbufq_dequeue(&lhw->rxq); 4491 while (m != NULL) { 4492 struct m_tag *mtag; 4493 4494 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4495 if (mtag != NULL) { 4496 struct lkpi_80211_tag_rxni *rxni; 4497 4498 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4499 ieee80211_free_node(rxni->ni); 4500 } 4501 m_freem(m); 4502 m = mbufq_dequeue(&lhw->rxq); 4503 } 4504 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 4505 __func__, lhw, mbufq_len(&lhw->rxq))); 4506 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 4507 4508 /* Cleanup more of lhw here or in wiphy_free()? */ 4509 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 4510 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 4511 LKPI_80211_LHW_LOCK_DESTROY(lhw); 4512 sx_destroy(&lhw->lvif_sx); 4513 IMPROVE(); 4514 } 4515 4516 void 4517 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 4518 { 4519 struct lkpi_hw *lhw; 4520 struct ieee80211com *ic; 4521 4522 lhw = HW_TO_LHW(hw); 4523 ic = lhw->ic; 4524 4525 /* Now set a proper name before ieee80211_ifattach(). */ 4526 ic->ic_softc = lhw; 4527 ic->ic_name = name; 4528 4529 /* XXX-BZ do we also need to set wiphy name? */ 4530 } 4531 4532 struct ieee80211_hw * 4533 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 4534 { 4535 struct lkpi_hw *lhw; 4536 4537 lhw = wiphy_priv(wiphy); 4538 return (LHW_TO_HW(lhw)); 4539 } 4540 4541 static void 4542 lkpi_radiotap_attach(struct lkpi_hw *lhw) 4543 { 4544 struct ieee80211com *ic; 4545 4546 ic = lhw->ic; 4547 ieee80211_radiotap_attach(ic, 4548 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 4549 LKPI_RTAP_TX_FLAGS_PRESENT, 4550 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 4551 LKPI_RTAP_RX_FLAGS_PRESENT); 4552 } 4553 4554 int 4555 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 4556 { 4557 struct ieee80211com *ic; 4558 struct lkpi_hw *lhw; 4559 int band, i; 4560 4561 lhw = HW_TO_LHW(hw); 4562 ic = lhw->ic; 4563 4564 /* We do it this late as wiphy->dev should be set for the name. */ 4565 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 4566 if (lhw->workq == NULL) 4567 return (-EAGAIN); 4568 4569 /* XXX-BZ figure this out how they count his... */ 4570 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 4571 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4572 hw->wiphy->perm_addr); 4573 } else if (hw->wiphy->n_addresses > 0) { 4574 /* We take the first one. */ 4575 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4576 hw->wiphy->addresses[0].addr); 4577 } else { 4578 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 4579 } 4580 4581 #ifdef __not_yet__ 4582 /* See comment in lkpi_80211_txq_tx_one(). */ 4583 ic->ic_headroom = hw->extra_tx_headroom; 4584 #endif 4585 4586 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 4587 ic->ic_opmode = IEEE80211_M_STA; 4588 4589 /* Set device capabilities. */ 4590 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 4591 ic->ic_caps = 4592 IEEE80211_C_STA | 4593 IEEE80211_C_MONITOR | 4594 IEEE80211_C_WPA | /* WPA/RSN */ 4595 #ifdef LKPI_80211_WME 4596 IEEE80211_C_WME | 4597 #endif 4598 #if 0 4599 IEEE80211_C_PMGT | 4600 #endif 4601 IEEE80211_C_SHSLOT | /* short slot time supported */ 4602 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 4603 ; 4604 #if 0 4605 /* Scanning is a different kind of beast to re-work. */ 4606 ic->ic_caps |= IEEE80211_C_BGSCAN; 4607 #endif 4608 if (lhw->ops->hw_scan) { 4609 /* 4610 * Advertise full-offload scanning. 4611 * 4612 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4613 * we essentially disable hw_scan for all drivers not setting 4614 * the flag. 4615 */ 4616 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4617 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4618 } 4619 4620 /* 4621 * The wiphy variables report bitmasks of avail antennas. 4622 * (*get_antenna) get the current bitmask sets which can be 4623 * altered by (*set_antenna) for some drivers. 4624 * XXX-BZ will the count alone do us much good long-term in net80211? 4625 */ 4626 if (hw->wiphy->available_antennas_rx || 4627 hw->wiphy->available_antennas_tx) { 4628 uint32_t rxs, txs; 4629 4630 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 4631 ic->ic_rxstream = bitcount32(rxs); 4632 ic->ic_txstream = bitcount32(txs); 4633 } 4634 } 4635 4636 ic->ic_cryptocaps = 0; 4637 #ifdef LKPI_80211_HW_CRYPTO 4638 if (hw->wiphy->n_cipher_suites > 0) { 4639 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 4640 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 4641 hw->wiphy->cipher_suites[i]); 4642 } 4643 #endif 4644 4645 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 4646 ic->ic_channels); 4647 4648 ieee80211_ifattach(ic); 4649 4650 ic->ic_update_mcast = lkpi_ic_update_mcast; 4651 ic->ic_update_promisc = lkpi_ic_update_promisc; 4652 ic->ic_update_chw = lkpi_ic_update_chw; 4653 ic->ic_parent = lkpi_ic_parent; 4654 ic->ic_scan_start = lkpi_ic_scan_start; 4655 ic->ic_scan_end = lkpi_ic_scan_end; 4656 ic->ic_set_channel = lkpi_ic_set_channel; 4657 ic->ic_transmit = lkpi_ic_transmit; 4658 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 4659 ic->ic_vap_create = lkpi_ic_vap_create; 4660 ic->ic_vap_delete = lkpi_ic_vap_delete; 4661 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 4662 ic->ic_wme.wme_update = lkpi_ic_wme_update; 4663 4664 lhw->ic_scan_curchan = ic->ic_scan_curchan; 4665 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 4666 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 4667 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 4668 4669 lhw->ic_node_alloc = ic->ic_node_alloc; 4670 ic->ic_node_alloc = lkpi_ic_node_alloc; 4671 lhw->ic_node_init = ic->ic_node_init; 4672 ic->ic_node_init = lkpi_ic_node_init; 4673 lhw->ic_node_cleanup = ic->ic_node_cleanup; 4674 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 4675 lhw->ic_node_free = ic->ic_node_free; 4676 ic->ic_node_free = lkpi_ic_node_free; 4677 4678 #ifdef LKPI_80211_HT 4679 lhw->ic_recv_action = ic->ic_recv_action; 4680 ic->ic_recv_action = lkpi_ic_recv_action; 4681 lhw->ic_send_action = ic->ic_send_action; 4682 ic->ic_send_action = lkpi_ic_send_action; 4683 4684 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 4685 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 4686 4687 lhw->ic_addba_request = ic->ic_addba_request; 4688 ic->ic_addba_request = lkpi_ic_addba_request; 4689 lhw->ic_addba_response = ic->ic_addba_response; 4690 ic->ic_addba_response = lkpi_ic_addba_response; 4691 lhw->ic_addba_stop = ic->ic_addba_stop; 4692 ic->ic_addba_stop = lkpi_ic_addba_stop; 4693 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 4694 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 4695 4696 lhw->ic_bar_response = ic->ic_bar_response; 4697 ic->ic_bar_response = lkpi_ic_bar_response; 4698 4699 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 4700 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 4701 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 4702 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 4703 #endif 4704 4705 lkpi_radiotap_attach(lhw); 4706 4707 /* 4708 * Assign the first possible channel for now; seems Realtek drivers 4709 * expect one. 4710 * Also remember the amount of bands we support and the most rates 4711 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 4712 */ 4713 lhw->supbands = lhw->max_rates = 0; 4714 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4715 struct ieee80211_supported_band *supband; 4716 struct linuxkpi_ieee80211_channel *channels; 4717 4718 supband = hw->wiphy->bands[band]; 4719 if (supband == NULL || supband->n_channels == 0) 4720 continue; 4721 4722 lhw->supbands++; 4723 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 4724 4725 /* If we have a channel, we need to keep counting supbands. */ 4726 if (hw->conf.chandef.chan != NULL) 4727 continue; 4728 4729 channels = supband->channels; 4730 for (i = 0; i < supband->n_channels; i++) { 4731 4732 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4733 continue; 4734 4735 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 4736 #ifdef LKPI_80211_HT 4737 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 4738 #endif 4739 NL80211_CHAN_NO_HT); 4740 break; 4741 } 4742 } 4743 4744 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 4745 4746 /* Make sure we do not support more than net80211 is willing to take. */ 4747 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 4748 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 4749 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 4750 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 4751 } 4752 4753 /* 4754 * The maximum supported bitrates on any band + size for 4755 * DSSS Parameter Set give our per-band IE size. 4756 * SSID is the responsibility of the driver and goes on the side. 4757 * The user specified bits coming from the vap go into the 4758 * "common ies" fields. 4759 */ 4760 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 4761 if (lhw->max_rates > IEEE80211_RATE_SIZE) 4762 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 4763 4764 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 4765 /* 4766 * net80211 does not seem to support the DSSS Parameter Set but 4767 * some of the drivers insert it so calculate the extra fixed 4768 * space in. 4769 */ 4770 lhw->scan_ie_len += 2 + 1; 4771 } 4772 4773 #if defined(LKPI_80211_HT) 4774 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 4775 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 4776 #endif 4777 #if defined(LKPI_80211_VHT) 4778 if ((ic->ic_flags_ext & IEEE80211_FEXT_VHT) != 0) 4779 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 4780 #endif 4781 4782 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 4783 if (hw->wiphy->max_scan_ie_len > 0) { 4784 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 4785 goto err; 4786 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 4787 } 4788 4789 if (bootverbose) 4790 ieee80211_announce(ic); 4791 4792 return (0); 4793 err: 4794 IMPROVE("TODO FIXME CLEANUP"); 4795 return (-EAGAIN); 4796 } 4797 4798 void 4799 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 4800 { 4801 struct lkpi_hw *lhw; 4802 struct ieee80211com *ic; 4803 4804 lhw = HW_TO_LHW(hw); 4805 ic = lhw->ic; 4806 ieee80211_ifdetach(ic); 4807 } 4808 4809 void 4810 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 4811 enum ieee80211_iface_iter flags, 4812 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 4813 void *arg) 4814 { 4815 struct lkpi_hw *lhw; 4816 struct lkpi_vif *lvif; 4817 struct ieee80211_vif *vif; 4818 bool active, atomic, nin_drv; 4819 4820 lhw = HW_TO_LHW(hw); 4821 4822 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 4823 IEEE80211_IFACE_ITER_RESUME_ALL| 4824 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 4825 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 4826 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 4827 __func__, flags); 4828 } 4829 4830 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 4831 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 4832 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 4833 4834 if (atomic) 4835 LKPI_80211_LHW_LVIF_LOCK(lhw); 4836 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4837 struct ieee80211vap *vap; 4838 4839 vif = LVIF_TO_VIF(lvif); 4840 4841 /* 4842 * If we want "active" interfaces, we need to distinguish on 4843 * whether the driver knows about them or not to be able to 4844 * handle the "resume" case correctly. Skip the ones the 4845 * driver does not know about. 4846 */ 4847 if (active && !lvif->added_to_drv && 4848 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 4849 continue; 4850 4851 /* 4852 * If we shall skip interfaces not added to the driver do so 4853 * if we haven't yet. 4854 */ 4855 if (nin_drv && !lvif->added_to_drv) 4856 continue; 4857 4858 /* 4859 * Run the iterator function if we are either not asking 4860 * asking for active only or if the VAP is "running". 4861 */ 4862 /* XXX-BZ probably should have state in the lvif as well. */ 4863 vap = LVIF_TO_VAP(lvif); 4864 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 4865 iterfunc(arg, vif->addr, vif); 4866 } 4867 if (atomic) 4868 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4869 } 4870 4871 void 4872 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 4873 struct ieee80211_vif *vif, 4874 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 4875 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 4876 void *arg) 4877 { 4878 4879 UNIMPLEMENTED; 4880 } 4881 4882 void 4883 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 4884 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 4885 void *), 4886 void *arg) 4887 { 4888 struct lkpi_hw *lhw; 4889 struct lkpi_vif *lvif; 4890 struct ieee80211_vif *vif; 4891 struct lkpi_chanctx *lchanctx; 4892 4893 KASSERT(hw != NULL && iterfunc != NULL, 4894 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4895 4896 lhw = HW_TO_LHW(hw); 4897 4898 IMPROVE("lchanctx should be its own list somewhere"); 4899 4900 LKPI_80211_LHW_LVIF_LOCK(lhw); 4901 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4902 4903 vif = LVIF_TO_VIF(lvif); 4904 if (vif->chanctx_conf == NULL) 4905 continue; 4906 4907 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 4908 if (!lchanctx->added_to_drv) 4909 continue; 4910 4911 iterfunc(hw, &lchanctx->chanctx_conf, arg); 4912 } 4913 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4914 } 4915 4916 void 4917 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4918 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4919 { 4920 struct lkpi_hw *lhw; 4921 struct lkpi_vif *lvif; 4922 struct lkpi_sta *lsta; 4923 struct ieee80211_sta *sta; 4924 4925 KASSERT(hw != NULL && iterfunc != NULL, 4926 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4927 4928 lhw = HW_TO_LHW(hw); 4929 4930 LKPI_80211_LHW_LVIF_LOCK(lhw); 4931 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4932 4933 LKPI_80211_LVIF_LOCK(lvif); 4934 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4935 if (!lsta->added_to_drv) 4936 continue; 4937 sta = LSTA_TO_STA(lsta); 4938 iterfunc(arg, sta); 4939 } 4940 LKPI_80211_LVIF_UNLOCK(lvif); 4941 } 4942 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4943 } 4944 4945 struct linuxkpi_ieee80211_regdomain * 4946 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4947 { 4948 struct linuxkpi_ieee80211_regdomain *regd; 4949 4950 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4951 GFP_KERNEL); 4952 return (regd); 4953 } 4954 4955 int 4956 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4957 struct linuxkpi_ieee80211_regdomain *regd) 4958 { 4959 struct lkpi_hw *lhw; 4960 struct ieee80211com *ic; 4961 struct ieee80211_regdomain *rd; 4962 4963 lhw = wiphy_priv(wiphy); 4964 ic = lhw->ic; 4965 4966 rd = &ic->ic_regdomain; 4967 if (rd->isocc[0] == '\0') { 4968 rd->isocc[0] = regd->alpha2[0]; 4969 rd->isocc[1] = regd->alpha2[1]; 4970 } 4971 4972 TODO(); 4973 /* XXX-BZ finish the rest. */ 4974 4975 return (0); 4976 } 4977 4978 void 4979 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4980 struct cfg80211_scan_info *info) 4981 { 4982 struct lkpi_hw *lhw; 4983 struct ieee80211com *ic; 4984 struct ieee80211_scan_state *ss; 4985 4986 lhw = wiphy_priv(hw->wiphy); 4987 ic = lhw->ic; 4988 ss = ic->ic_scan; 4989 4990 ieee80211_scan_done(ss->ss_vap); 4991 4992 LKPI_80211_LHW_SCAN_LOCK(lhw); 4993 free(lhw->hw_req, M_LKPI80211); 4994 lhw->hw_req = NULL; 4995 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4996 wakeup(lhw); 4997 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4998 4999 return; 5000 } 5001 5002 static void 5003 lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 5004 { 5005 struct ieee80211_node *ni; 5006 struct m_tag *mtag; 5007 int ok; 5008 5009 ni = NULL; 5010 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 5011 if (mtag != NULL) { 5012 struct lkpi_80211_tag_rxni *rxni; 5013 5014 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 5015 ni = rxni->ni; 5016 } 5017 5018 if (ni != NULL) { 5019 ok = ieee80211_input_mimo(ni, m); 5020 ieee80211_free_node(ni); /* Release the reference. */ 5021 if (ok < 0) 5022 m_freem(m); 5023 } else { 5024 ok = ieee80211_input_mimo_all(lhw->ic, m); 5025 /* mbuf got consumed. */ 5026 } 5027 5028 #ifdef LINUXKPI_DEBUG_80211 5029 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5030 printf("TRACE-RX: %s: handled frame type %#0x\n", __func__, ok); 5031 #endif 5032 } 5033 5034 static void 5035 lkpi_80211_lhw_rxq_task(void *ctx, int pending) 5036 { 5037 struct lkpi_hw *lhw; 5038 struct mbufq mq; 5039 struct mbuf *m; 5040 5041 lhw = ctx; 5042 5043 #ifdef LINUXKPI_DEBUG_80211 5044 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5045 printf("TRACE-RX: %s: lhw %p pending %d mbuf_qlen %d\n", 5046 __func__, lhw, pending, mbufq_len(&lhw->rxq)); 5047 #endif 5048 5049 mbufq_init(&mq, IFQ_MAXLEN); 5050 5051 LKPI_80211_LHW_RXQ_LOCK(lhw); 5052 mbufq_concat(&mq, &lhw->rxq); 5053 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5054 5055 m = mbufq_dequeue(&mq); 5056 while (m != NULL) { 5057 lkpi_80211_lhw_rxq_rx_one(lhw, m); 5058 m = mbufq_dequeue(&mq); 5059 } 5060 } 5061 5062 /* For %list see comment towards the end of the function. */ 5063 void 5064 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 5065 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 5066 struct list_head *list __unused) 5067 { 5068 struct lkpi_hw *lhw; 5069 struct ieee80211com *ic; 5070 struct mbuf *m; 5071 struct skb_shared_info *shinfo; 5072 struct ieee80211_rx_status *rx_status; 5073 struct ieee80211_rx_stats rx_stats; 5074 struct ieee80211_node *ni; 5075 struct ieee80211vap *vap; 5076 struct ieee80211_hdr *hdr; 5077 struct lkpi_sta *lsta; 5078 int i, offset, ok; 5079 int8_t rssi; 5080 bool is_beacon; 5081 5082 if (skb->len < 2) { 5083 /* Need 80211 stats here. */ 5084 IMPROVE(); 5085 goto err; 5086 } 5087 5088 /* 5089 * For now do the data copy; we can later improve things. Might even 5090 * have an mbuf backing the skb data then? 5091 */ 5092 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 5093 if (m == NULL) 5094 goto err; 5095 m_copyback(m, 0, skb->tail - skb->data, skb->data); 5096 5097 shinfo = skb_shinfo(skb); 5098 offset = m->m_len; 5099 for (i = 0; i < shinfo->nr_frags; i++) { 5100 m_copyback(m, offset, shinfo->frags[i].size, 5101 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 5102 shinfo->frags[i].offset); 5103 offset += shinfo->frags[i].size; 5104 } 5105 5106 rx_status = IEEE80211_SKB_RXCB(skb); 5107 5108 hdr = (void *)skb->data; 5109 is_beacon = ieee80211_is_beacon(hdr->frame_control); 5110 5111 #ifdef LINUXKPI_DEBUG_80211 5112 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 5113 goto no_trace_beacons; 5114 5115 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5116 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 5117 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 5118 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 5119 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 5120 shinfo, shinfo->nr_frags, 5121 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 5122 5123 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 5124 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 5125 5126 /* Implement a dump_rxcb() !!! */ 5127 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5128 printf("TRACE-RX: %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 5129 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 5130 __func__, 5131 (uintmax_t)rx_status->boottime_ns, 5132 (uintmax_t)rx_status->mactime, 5133 rx_status->device_timestamp, 5134 rx_status->flag, 5135 rx_status->freq, 5136 rx_status->bw, 5137 rx_status->encoding, 5138 rx_status->ampdu_reference, 5139 rx_status->band, 5140 rx_status->chains, 5141 rx_status->chain_signal[0], 5142 rx_status->chain_signal[1], 5143 rx_status->chain_signal[2], 5144 rx_status->chain_signal[3], 5145 rx_status->signal, 5146 rx_status->enc_flags, 5147 rx_status->he_dcm, 5148 rx_status->he_gi, 5149 rx_status->he_ru, 5150 rx_status->zero_length_psdu_type, 5151 rx_status->nss, 5152 rx_status->rate_idx); 5153 no_trace_beacons: 5154 #endif 5155 5156 memset(&rx_stats, 0, sizeof(rx_stats)); 5157 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 5158 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 5159 rx_stats.c_nf = -96; 5160 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 5161 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 5162 rssi = rx_status->signal; 5163 else 5164 rssi = rx_stats.c_nf; 5165 /* 5166 * net80211 signal strength data are in .5 dBm units relative to 5167 * the current noise floor (see comment in ieee80211_node.h). 5168 */ 5169 rssi -= rx_stats.c_nf; 5170 rx_stats.c_rssi = rssi * 2; 5171 rx_stats.r_flags |= IEEE80211_R_BAND; 5172 rx_stats.c_band = 5173 lkpi_nl80211_band_to_net80211_band(rx_status->band); 5174 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 5175 rx_stats.c_freq = rx_status->freq; 5176 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 5177 5178 /* XXX (*sta_statistics)() to get to some of that? */ 5179 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 5180 5181 lhw = HW_TO_LHW(hw); 5182 ic = lhw->ic; 5183 5184 ok = ieee80211_add_rx_params(m, &rx_stats); 5185 if (ok == 0) { 5186 m_freem(m); 5187 counter_u64_add(ic->ic_ierrors, 1); 5188 goto err; 5189 } 5190 5191 lsta = NULL; 5192 if (sta != NULL) { 5193 lsta = STA_TO_LSTA(sta); 5194 ni = ieee80211_ref_node(lsta->ni); 5195 } else { 5196 struct ieee80211_frame_min *wh; 5197 5198 wh = mtod(m, struct ieee80211_frame_min *); 5199 ni = ieee80211_find_rxnode(ic, wh); 5200 if (ni != NULL) 5201 lsta = ni->ni_drv_data; 5202 } 5203 5204 if (ni != NULL) 5205 vap = ni->ni_vap; 5206 else 5207 /* 5208 * XXX-BZ can we improve this by looking at the frame hdr 5209 * or other meta-data passed up? 5210 */ 5211 vap = TAILQ_FIRST(&ic->ic_vaps); 5212 5213 #ifdef LINUXKPI_DEBUG_80211 5214 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5215 printf("TRACE-RX: %s: sta %p lsta %p state %d ni %p vap %p%s\n", 5216 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 5217 ni, vap, is_beacon ? " beacon" : ""); 5218 #endif 5219 5220 if (ni != NULL && vap != NULL && is_beacon && 5221 rx_status->device_timestamp > 0 && 5222 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 5223 struct lkpi_vif *lvif; 5224 struct ieee80211_vif *vif; 5225 struct ieee80211_frame *wh; 5226 5227 wh = mtod(m, struct ieee80211_frame *); 5228 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 5229 goto skip_device_ts; 5230 5231 lvif = VAP_TO_LVIF(vap); 5232 vif = LVIF_TO_VIF(lvif); 5233 5234 IMPROVE("TIMING_BEACON_ONLY?"); 5235 /* mac80211 specific (not net80211) so keep it here. */ 5236 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 5237 /* 5238 * net80211 should take care of the other information (sync_tsf, 5239 * sync_dtim_count) as otherwise we need to parse the beacon. 5240 */ 5241 skip_device_ts: 5242 ; 5243 } 5244 5245 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 5246 ieee80211_radiotap_active_vap(vap)) { 5247 struct lkpi_radiotap_rx_hdr *rtap; 5248 5249 rtap = &lhw->rtap_rx; 5250 rtap->wr_tsft = rx_status->device_timestamp; 5251 rtap->wr_flags = 0; 5252 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 5253 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 5254 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 5255 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 5256 #if 0 /* .. or it does not given we strip it below. */ 5257 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5258 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 5259 #endif 5260 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 5261 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 5262 rtap->wr_rate = 0; 5263 IMPROVE(); 5264 /* XXX TODO status->encoding / rate_index / bw */ 5265 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 5266 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 5267 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 5268 rtap->wr_dbm_antsignal = rssi; 5269 rtap->wr_dbm_antnoise = rx_stats.c_nf; 5270 } 5271 5272 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5273 m_adj(m, -IEEE80211_CRC_LEN); 5274 5275 #if 0 5276 if (list != NULL) { 5277 /* 5278 * Normally this would be queued up and delivered by 5279 * netif_receive_skb_list(), napi_gro_receive(), or the like. 5280 * See mt76::mac80211.c as only current possible consumer. 5281 */ 5282 IMPROVE("we simply pass the packet to net80211 to deal with."); 5283 } 5284 #endif 5285 5286 /* 5287 * Attach meta-information to the mbuf for the deferred RX path. 5288 * Currently this is best-effort. Should we need to be hard, 5289 * drop the frame and goto err; 5290 */ 5291 if (ni != NULL) { 5292 struct m_tag *mtag; 5293 struct lkpi_80211_tag_rxni *rxni; 5294 5295 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 5296 sizeof(*rxni), IEEE80211_M_NOWAIT); 5297 if (mtag != NULL) { 5298 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 5299 rxni->ni = ni; /* We hold a reference. */ 5300 m_tag_prepend(m, mtag); 5301 } 5302 } 5303 5304 LKPI_80211_LHW_RXQ_LOCK(lhw); 5305 if (lhw->rxq_stopped) { 5306 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5307 m_freem(m); 5308 goto err; 5309 } 5310 5311 mbufq_enqueue(&lhw->rxq, m); 5312 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 5313 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5314 5315 IMPROVE(); 5316 5317 err: 5318 /* The skb is ours so we can free it :-) */ 5319 kfree_skb(skb); 5320 } 5321 5322 uint8_t 5323 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 5324 { 5325 const struct ieee80211_frame *wh; 5326 uint8_t tid; 5327 5328 /* Linux seems to assume this is a QOS-Data-Frame */ 5329 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 5330 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 5331 hdr->frame_control)); 5332 5333 wh = (const struct ieee80211_frame *)hdr; 5334 tid = ieee80211_gettid(wh); 5335 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 5336 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 5337 5338 return (tid); 5339 } 5340 5341 /* -------------------------------------------------------------------------- */ 5342 5343 static void 5344 lkpi_wiphy_work(struct work_struct *work) 5345 { 5346 struct lkpi_wiphy *lwiphy; 5347 struct wiphy *wiphy; 5348 struct wiphy_work *wk; 5349 5350 lwiphy = container_of(work, struct lkpi_wiphy, wwk); 5351 wiphy = LWIPHY_TO_WIPHY(lwiphy); 5352 5353 wiphy_lock(wiphy); 5354 5355 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5356 wk = list_first_entry_or_null(&lwiphy->wwk_list, struct wiphy_work, entry); 5357 /* If there is nothing we do nothing. */ 5358 if (wk == NULL) { 5359 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5360 wiphy_unlock(wiphy); 5361 return; 5362 } 5363 list_del_init(&wk->entry); 5364 5365 /* More work to do? */ 5366 if (!list_empty(&lwiphy->wwk_list)) 5367 schedule_work(work); 5368 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5369 5370 /* Finally call the (*wiphy_work_fn)() function. */ 5371 wk->fn(wiphy, wk); 5372 5373 wiphy_unlock(wiphy); 5374 } 5375 5376 void 5377 linuxkpi_wiphy_work_queue(struct wiphy *wiphy, struct wiphy_work *wwk) 5378 { 5379 struct lkpi_wiphy *lwiphy; 5380 5381 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5382 5383 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5384 /* Do not double-queue. */ 5385 if (list_empty(&wwk->entry)) 5386 list_add_tail(&wwk->entry, &lwiphy->wwk_list); 5387 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5388 5389 /* 5390 * See how ieee80211_queue_work() work continues in Linux or if things 5391 * migrate here over time? 5392 * Use a system queue from linux/workqueue.h for now. 5393 */ 5394 queue_work(system_wq, &lwiphy->wwk); 5395 } 5396 5397 void 5398 linuxkpi_wiphy_work_cancel(struct wiphy *wiphy, struct wiphy_work *wwk) 5399 { 5400 struct lkpi_wiphy *lwiphy; 5401 5402 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5403 5404 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5405 /* Only cancel if queued. */ 5406 if (!list_empty(&wwk->entry)) 5407 list_del_init(&wwk->entry); 5408 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5409 } 5410 5411 void 5412 linuxkpi_wiphy_work_flush(struct wiphy *wiphy, struct wiphy_work *wwk) 5413 { 5414 struct lkpi_wiphy *lwiphy; 5415 struct wiphy_work *wk; 5416 5417 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5418 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5419 /* If wwk is unset, flush everything; called when wiphy is shut down. */ 5420 if (wwk != NULL && list_empty(&wwk->entry)) { 5421 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5422 return; 5423 } 5424 5425 while (!list_empty(&lwiphy->wwk_list)) { 5426 5427 wk = list_first_entry(&lwiphy->wwk_list, struct wiphy_work, 5428 entry); 5429 list_del_init(&wk->entry); 5430 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5431 wk->fn(wiphy, wk); 5432 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 5433 if (wk == wwk) 5434 break; 5435 } 5436 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 5437 } 5438 5439 void 5440 lkpi_wiphy_delayed_work_timer(struct timer_list *tl) 5441 { 5442 struct wiphy_delayed_work *wdwk; 5443 5444 wdwk = from_timer(wdwk, tl, timer); 5445 wiphy_work_queue(wdwk->wiphy, &wdwk->work); 5446 } 5447 5448 void 5449 linuxkpi_wiphy_delayed_work_queue(struct wiphy *wiphy, 5450 struct wiphy_delayed_work *wdwk, unsigned long delay) 5451 { 5452 if (delay == 0) { 5453 /* Run right away. */ 5454 del_timer(&wdwk->timer); 5455 wiphy_work_queue(wiphy, &wdwk->work); 5456 } else { 5457 wdwk->wiphy = wiphy; 5458 mod_timer(&wdwk->timer, jiffies + delay); 5459 } 5460 } 5461 5462 void 5463 linuxkpi_wiphy_delayed_work_cancel(struct wiphy *wiphy, 5464 struct wiphy_delayed_work *wdwk) 5465 { 5466 del_timer_sync(&wdwk->timer); 5467 wiphy_work_cancel(wiphy, &wdwk->work); 5468 } 5469 5470 /* -------------------------------------------------------------------------- */ 5471 5472 struct wiphy * 5473 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 5474 { 5475 struct lkpi_wiphy *lwiphy; 5476 struct wiphy *wiphy; 5477 5478 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 5479 if (lwiphy == NULL) 5480 return (NULL); 5481 lwiphy->ops = ops; 5482 5483 LKPI_80211_LWIPHY_WORK_LOCK_INIT(lwiphy); 5484 INIT_LIST_HEAD(&lwiphy->wwk_list); 5485 INIT_WORK(&lwiphy->wwk, lkpi_wiphy_work); 5486 5487 wiphy = LWIPHY_TO_WIPHY(lwiphy); 5488 5489 mutex_init(&wiphy->mtx); 5490 TODO(); 5491 5492 return (wiphy); 5493 } 5494 5495 void 5496 linuxkpi_wiphy_free(struct wiphy *wiphy) 5497 { 5498 struct lkpi_wiphy *lwiphy; 5499 5500 if (wiphy == NULL) 5501 return; 5502 5503 linuxkpi_wiphy_work_flush(wiphy, NULL); 5504 mutex_destroy(&wiphy->mtx); 5505 5506 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5507 LKPI_80211_LWIPHY_WORK_LOCK_DESTROY(lwiphy); 5508 5509 kfree(lwiphy); 5510 } 5511 5512 uint32_t 5513 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 5514 enum nl80211_band band) 5515 { 5516 5517 switch (band) { 5518 case NL80211_BAND_2GHZ: 5519 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 5520 break; 5521 case NL80211_BAND_5GHZ: 5522 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 5523 break; 5524 default: 5525 /* XXX abort, retry, error, panic? */ 5526 break; 5527 } 5528 5529 return (0); 5530 } 5531 5532 uint32_t 5533 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 5534 { 5535 5536 return (ieee80211_mhz2ieee(freq, 0)); 5537 } 5538 5539 #if 0 5540 static struct lkpi_sta * 5541 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 5542 { 5543 struct lkpi_sta *lsta, *temp; 5544 5545 LKPI_80211_LVIF_LOCK(lvif); 5546 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5547 if (lsta->ni == ni) { 5548 LKPI_80211_LVIF_UNLOCK(lvif); 5549 return (lsta); 5550 } 5551 } 5552 LKPI_80211_LVIF_UNLOCK(lvif); 5553 5554 return (NULL); 5555 } 5556 #endif 5557 5558 struct ieee80211_sta * 5559 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 5560 { 5561 struct lkpi_vif *lvif; 5562 struct lkpi_sta *lsta, *temp; 5563 struct ieee80211_sta *sta; 5564 5565 lvif = VIF_TO_LVIF(vif); 5566 5567 LKPI_80211_LVIF_LOCK(lvif); 5568 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5569 sta = LSTA_TO_STA(lsta); 5570 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 5571 LKPI_80211_LVIF_UNLOCK(lvif); 5572 return (sta); 5573 } 5574 } 5575 LKPI_80211_LVIF_UNLOCK(lvif); 5576 return (NULL); 5577 } 5578 5579 struct ieee80211_sta * 5580 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 5581 const uint8_t *addr, const uint8_t *ourvifaddr) 5582 { 5583 struct lkpi_hw *lhw; 5584 struct lkpi_vif *lvif; 5585 struct lkpi_sta *lsta; 5586 struct ieee80211_vif *vif; 5587 struct ieee80211_sta *sta; 5588 5589 lhw = wiphy_priv(hw->wiphy); 5590 sta = NULL; 5591 5592 LKPI_80211_LHW_LVIF_LOCK(lhw); 5593 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5594 5595 /* XXX-BZ check our address from the vif. */ 5596 5597 vif = LVIF_TO_VIF(lvif); 5598 if (ourvifaddr != NULL && 5599 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 5600 continue; 5601 sta = linuxkpi_ieee80211_find_sta(vif, addr); 5602 if (sta != NULL) 5603 break; 5604 } 5605 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5606 5607 if (sta != NULL) { 5608 lsta = STA_TO_LSTA(sta); 5609 if (!lsta->added_to_drv) 5610 return (NULL); 5611 } 5612 5613 return (sta); 5614 } 5615 5616 struct sk_buff * 5617 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 5618 struct ieee80211_txq *txq) 5619 { 5620 struct lkpi_txq *ltxq; 5621 struct lkpi_vif *lvif; 5622 struct sk_buff *skb; 5623 5624 skb = NULL; 5625 ltxq = TXQ_TO_LTXQ(txq); 5626 ltxq->seen_dequeue = true; 5627 5628 if (ltxq->stopped) 5629 goto stopped; 5630 5631 lvif = VIF_TO_LVIF(ltxq->txq.vif); 5632 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 5633 ltxq->stopped = true; 5634 goto stopped; 5635 } 5636 5637 IMPROVE("hw(TX_FRAG_LIST)"); 5638 5639 LKPI_80211_LTXQ_LOCK(ltxq); 5640 skb = skb_dequeue(<xq->skbq); 5641 LKPI_80211_LTXQ_UNLOCK(ltxq); 5642 5643 stopped: 5644 return (skb); 5645 } 5646 5647 void 5648 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 5649 unsigned long *frame_cnt, unsigned long *byte_cnt) 5650 { 5651 struct lkpi_txq *ltxq; 5652 struct sk_buff *skb; 5653 unsigned long fc, bc; 5654 5655 ltxq = TXQ_TO_LTXQ(txq); 5656 5657 fc = bc = 0; 5658 LKPI_80211_LTXQ_LOCK(ltxq); 5659 skb_queue_walk(<xq->skbq, skb) { 5660 fc++; 5661 bc += skb->len; 5662 } 5663 LKPI_80211_LTXQ_UNLOCK(ltxq); 5664 if (frame_cnt) 5665 *frame_cnt = fc; 5666 if (byte_cnt) 5667 *byte_cnt = bc; 5668 5669 /* Validate that this is doing the correct thing. */ 5670 /* Should we keep track on en/dequeue? */ 5671 IMPROVE(); 5672 } 5673 5674 /* 5675 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 5676 * The latter tries to derive the success status from the info flags 5677 * passed back from the driver. rawx_mit() saves the ni on the m and the 5678 * m on the skb for us to be able to give feedback to net80211. 5679 */ 5680 static void 5681 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5682 int status) 5683 { 5684 struct ieee80211_node *ni; 5685 struct mbuf *m; 5686 5687 m = skb->m; 5688 skb->m = NULL; 5689 5690 if (m != NULL) { 5691 ni = m->m_pkthdr.PH_loc.ptr; 5692 /* Status: 0 is ok, != 0 is error. */ 5693 ieee80211_tx_complete(ni, m, status); 5694 /* ni & mbuf were consumed. */ 5695 } 5696 } 5697 5698 void 5699 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5700 int status) 5701 { 5702 5703 _lkpi_ieee80211_free_txskb(hw, skb, status); 5704 kfree_skb(skb); 5705 } 5706 5707 void 5708 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 5709 struct ieee80211_tx_status *txstat) 5710 { 5711 struct sk_buff *skb; 5712 struct ieee80211_tx_info *info; 5713 struct ieee80211_ratectl_tx_status txs; 5714 struct ieee80211_node *ni; 5715 int status; 5716 5717 skb = txstat->skb; 5718 if (skb->m != NULL) { 5719 struct mbuf *m; 5720 5721 m = skb->m; 5722 ni = m->m_pkthdr.PH_loc.ptr; 5723 memset(&txs, 0, sizeof(txs)); 5724 } else { 5725 ni = NULL; 5726 } 5727 5728 info = txstat->info; 5729 if (info->flags & IEEE80211_TX_STAT_ACK) { 5730 status = 0; /* No error. */ 5731 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 5732 } else { 5733 status = 1; 5734 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 5735 } 5736 5737 if (ni != NULL) { 5738 int ridx __unused; 5739 #ifdef LINUXKPI_DEBUG_80211 5740 int old_rate; 5741 5742 old_rate = ni->ni_vap->iv_bss->ni_txrate; 5743 #endif 5744 txs.pktlen = skb->len; 5745 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 5746 if (info->status.rates[0].count > 1) { 5747 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 5748 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 5749 } 5750 #if 0 /* Unused in net80211 currently. */ 5751 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 5752 txs.final_rate = info->status.rates[0].idx; 5753 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 5754 #endif 5755 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 5756 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 5757 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 5758 } 5759 5760 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 5761 ieee80211_ratectl_tx_complete(ni, &txs); 5762 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 5763 5764 #ifdef LINUXKPI_DEBUG_80211 5765 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 5766 printf("TX-RATE: %s: old %d new %d ridx %d, " 5767 "long_retries %d\n", __func__, 5768 old_rate, ni->ni_vap->iv_bss->ni_txrate, 5769 ridx, txs.long_retries); 5770 } 5771 #endif 5772 } 5773 5774 #ifdef LINUXKPI_DEBUG_80211 5775 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5776 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 5777 "band %u hw_queue %u tx_time_est %d : " 5778 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 5779 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 5780 "tx_time %u flags %#x " 5781 "status_driver_data [ %p %p ]\n", 5782 __func__, hw, skb, status, info->flags, 5783 info->band, info->hw_queue, info->tx_time_est, 5784 info->status.rates[0].idx, info->status.rates[0].count, 5785 info->status.rates[0].flags, 5786 info->status.rates[1].idx, info->status.rates[1].count, 5787 info->status.rates[1].flags, 5788 info->status.rates[2].idx, info->status.rates[2].count, 5789 info->status.rates[2].flags, 5790 info->status.rates[3].idx, info->status.rates[3].count, 5791 info->status.rates[3].flags, 5792 info->status.ack_signal, info->status.ampdu_ack_len, 5793 info->status.ampdu_len, info->status.antenna, 5794 info->status.tx_time, info->status.flags, 5795 info->status.status_driver_data[0], 5796 info->status.status_driver_data[1]); 5797 #endif 5798 5799 if (txstat->free_list) { 5800 _lkpi_ieee80211_free_txskb(hw, skb, status); 5801 list_add_tail(&skb->list, txstat->free_list); 5802 } else { 5803 linuxkpi_ieee80211_free_txskb(hw, skb, status); 5804 } 5805 } 5806 5807 void 5808 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 5809 { 5810 struct ieee80211_tx_status status; 5811 5812 memset(&status, 0, sizeof(status)); 5813 status.info = IEEE80211_SKB_CB(skb); 5814 status.skb = skb; 5815 /* sta, n_rates, rates, free_list? */ 5816 5817 ieee80211_tx_status_ext(hw, &status); 5818 } 5819 5820 /* 5821 * This is an internal bandaid for the moment for the way we glue 5822 * skbs and mbufs together for TX. Once we have skbs backed by 5823 * mbufs this should go away. 5824 * This is a public function but kept on the private KPI (lkpi_) 5825 * and is not exposed by a header file. 5826 */ 5827 static void 5828 lkpi_ieee80211_free_skb_mbuf(void *p) 5829 { 5830 struct ieee80211_node *ni; 5831 struct mbuf *m; 5832 5833 if (p == NULL) 5834 return; 5835 5836 m = (struct mbuf *)p; 5837 M_ASSERTPKTHDR(m); 5838 5839 ni = m->m_pkthdr.PH_loc.ptr; 5840 m->m_pkthdr.PH_loc.ptr = NULL; 5841 if (ni != NULL) 5842 ieee80211_free_node(ni); 5843 m_freem(m); 5844 } 5845 5846 void 5847 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 5848 struct delayed_work *w, int delay) 5849 { 5850 struct lkpi_hw *lhw; 5851 5852 /* Need to make sure hw is in a stable (non-suspended) state. */ 5853 IMPROVE(); 5854 5855 lhw = HW_TO_LHW(hw); 5856 queue_delayed_work(lhw->workq, w, delay); 5857 } 5858 5859 void 5860 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 5861 struct work_struct *w) 5862 { 5863 struct lkpi_hw *lhw; 5864 5865 /* Need to make sure hw is in a stable (non-suspended) state. */ 5866 IMPROVE(); 5867 5868 lhw = HW_TO_LHW(hw); 5869 queue_work(lhw->workq, w); 5870 } 5871 5872 struct sk_buff * 5873 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 5874 uint8_t *ssid, size_t ssid_len, size_t tailroom) 5875 { 5876 struct sk_buff *skb; 5877 struct ieee80211_frame *wh; 5878 uint8_t *p; 5879 size_t len; 5880 5881 len = sizeof(*wh); 5882 len += 2 + ssid_len; 5883 5884 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 5885 if (skb == NULL) 5886 return (NULL); 5887 5888 skb_reserve(skb, hw->extra_tx_headroom); 5889 5890 wh = skb_put_zero(skb, sizeof(*wh)); 5891 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 5892 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 5893 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 5894 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 5895 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 5896 5897 p = skb_put(skb, 2 + ssid_len); 5898 *p++ = IEEE80211_ELEMID_SSID; 5899 *p++ = ssid_len; 5900 if (ssid_len > 0) 5901 memcpy(p, ssid, ssid_len); 5902 5903 return (skb); 5904 } 5905 5906 struct sk_buff * 5907 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 5908 struct ieee80211_vif *vif) 5909 { 5910 struct lkpi_vif *lvif; 5911 struct ieee80211vap *vap; 5912 struct sk_buff *skb; 5913 struct ieee80211_frame_pspoll *psp; 5914 uint16_t v; 5915 5916 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 5917 if (skb == NULL) 5918 return (NULL); 5919 5920 skb_reserve(skb, hw->extra_tx_headroom); 5921 5922 lvif = VIF_TO_LVIF(vif); 5923 vap = LVIF_TO_VAP(lvif); 5924 5925 psp = skb_put_zero(skb, sizeof(*psp)); 5926 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 5927 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 5928 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 5929 memcpy(&psp->i_aid, &v, sizeof(v)); 5930 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 5931 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 5932 5933 return (skb); 5934 } 5935 5936 struct sk_buff * 5937 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 5938 struct ieee80211_vif *vif, int linkid, bool qos) 5939 { 5940 struct lkpi_vif *lvif; 5941 struct ieee80211vap *vap; 5942 struct sk_buff *skb; 5943 struct ieee80211_frame *nullf; 5944 5945 IMPROVE("linkid"); 5946 5947 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 5948 if (skb == NULL) 5949 return (NULL); 5950 5951 skb_reserve(skb, hw->extra_tx_headroom); 5952 5953 lvif = VIF_TO_LVIF(vif); 5954 vap = LVIF_TO_VAP(lvif); 5955 5956 nullf = skb_put_zero(skb, sizeof(*nullf)); 5957 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 5958 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 5959 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 5960 5961 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 5962 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 5963 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 5964 5965 return (skb); 5966 } 5967 5968 struct wireless_dev * 5969 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 5970 { 5971 struct lkpi_vif *lvif; 5972 5973 lvif = VIF_TO_LVIF(vif); 5974 return (&lvif->wdev); 5975 } 5976 5977 void 5978 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 5979 { 5980 struct lkpi_vif *lvif; 5981 struct ieee80211vap *vap; 5982 enum ieee80211_state nstate; 5983 int arg; 5984 5985 lvif = VIF_TO_LVIF(vif); 5986 vap = LVIF_TO_VAP(lvif); 5987 5988 /* 5989 * Go to init; otherwise we need to elaborately check state and 5990 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 5991 * Let the statemachine handle all neccessary changes. 5992 */ 5993 nstate = IEEE80211_S_INIT; 5994 arg = 0; /* Not a valid reason. */ 5995 5996 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5997 vif, vap, ieee80211_state_name[vap->iv_state]); 5998 ieee80211_new_state(vap, nstate, arg); 5999 } 6000 6001 void 6002 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 6003 { 6004 struct lkpi_vif *lvif; 6005 struct ieee80211vap *vap; 6006 6007 lvif = VIF_TO_LVIF(vif); 6008 vap = LVIF_TO_VAP(lvif); 6009 6010 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 6011 vif, vap, ieee80211_state_name[vap->iv_state]); 6012 ieee80211_beacon_miss(vap->iv_ic); 6013 } 6014 6015 /* -------------------------------------------------------------------------- */ 6016 6017 void 6018 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 6019 { 6020 struct lkpi_hw *lhw; 6021 struct lkpi_vif *lvif; 6022 struct ieee80211_vif *vif; 6023 int ac_count, ac; 6024 6025 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 6026 __func__, qnum, hw->queues, hw)); 6027 6028 lhw = wiphy_priv(hw->wiphy); 6029 6030 /* See lkpi_ic_vap_create(). */ 6031 if (hw->queues >= IEEE80211_NUM_ACS) 6032 ac_count = IEEE80211_NUM_ACS; 6033 else 6034 ac_count = 1; 6035 6036 LKPI_80211_LHW_LVIF_LOCK(lhw); 6037 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 6038 6039 vif = LVIF_TO_VIF(lvif); 6040 for (ac = 0; ac < ac_count; ac++) { 6041 IMPROVE_TXQ("LOCKING"); 6042 if (qnum == vif->hw_queue[ac]) { 6043 #ifdef LINUXKPI_DEBUG_80211 6044 /* 6045 * For now log this to better understand 6046 * how this is supposed to work. 6047 */ 6048 if (lvif->hw_queue_stopped[ac] && 6049 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 6050 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 6051 "lvif %p vif %p ac %d qnum %d already " 6052 "stopped\n", __func__, __LINE__, 6053 lhw, hw, lvif, vif, ac, qnum); 6054 #endif 6055 lvif->hw_queue_stopped[ac] = true; 6056 } 6057 } 6058 } 6059 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 6060 } 6061 6062 void 6063 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 6064 { 6065 int i; 6066 6067 IMPROVE_TXQ("Locking; do we need further info?"); 6068 for (i = 0; i < hw->queues; i++) 6069 linuxkpi_ieee80211_stop_queue(hw, i); 6070 } 6071 6072 6073 static void 6074 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 6075 { 6076 struct lkpi_hw *lhw; 6077 struct lkpi_vif *lvif; 6078 struct lkpi_sta *lsta; 6079 int ac_count, ac, tid; 6080 6081 /* See lkpi_ic_vap_create(). */ 6082 if (hw->queues >= IEEE80211_NUM_ACS) 6083 ac_count = IEEE80211_NUM_ACS; 6084 else 6085 ac_count = 1; 6086 6087 lhw = wiphy_priv(hw->wiphy); 6088 6089 IMPROVE_TXQ("Locking"); 6090 LKPI_80211_LHW_LVIF_LOCK(lhw); 6091 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 6092 struct ieee80211_vif *vif; 6093 6094 vif = LVIF_TO_VIF(lvif); 6095 for (ac = 0; ac < ac_count; ac++) { 6096 6097 if (hwq == vif->hw_queue[ac]) { 6098 6099 /* XXX-BZ what about software scan? */ 6100 6101 #ifdef LINUXKPI_DEBUG_80211 6102 /* 6103 * For now log this to better understand 6104 * how this is supposed to work. 6105 */ 6106 if (!lvif->hw_queue_stopped[ac] && 6107 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 6108 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 6109 "lvif %p vif %p ac %d hw_q not stopped\n", 6110 __func__, __LINE__, 6111 lhw, hw, lvif, vif, ac); 6112 #endif 6113 lvif->hw_queue_stopped[ac] = false; 6114 6115 LKPI_80211_LVIF_LOCK(lvif); 6116 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 6117 struct ieee80211_sta *sta; 6118 6119 sta = LSTA_TO_STA(lsta); 6120 for (tid = 0; tid < nitems(sta->txq); tid++) { 6121 struct lkpi_txq *ltxq; 6122 6123 if (sta->txq[tid] == NULL) 6124 continue; 6125 6126 if (sta->txq[tid]->ac != ac) 6127 continue; 6128 6129 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 6130 if (!ltxq->stopped) 6131 continue; 6132 6133 ltxq->stopped = false; 6134 6135 /* XXX-BZ see when this explodes with all the locking. taskq? */ 6136 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 6137 } 6138 } 6139 LKPI_80211_LVIF_UNLOCK(lvif); 6140 } 6141 } 6142 } 6143 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 6144 } 6145 6146 void 6147 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 6148 { 6149 int i; 6150 6151 IMPROVE_TXQ("Is this all/enough here?"); 6152 for (i = 0; i < hw->queues; i++) 6153 lkpi_ieee80211_wake_queues(hw, i); 6154 } 6155 6156 void 6157 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 6158 { 6159 6160 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 6161 __func__, qnum, hw->queues, hw)); 6162 6163 lkpi_ieee80211_wake_queues(hw, qnum); 6164 } 6165 6166 /* This is just hardware queues. */ 6167 void 6168 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 6169 { 6170 struct lkpi_hw *lhw; 6171 6172 lhw = HW_TO_LHW(hw); 6173 6174 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 6175 IMPROVE_TXQ("LOCKING"); 6176 if (++lhw->txq_generation[ac] == 0) 6177 lhw->txq_generation[ac]++; 6178 } 6179 6180 struct ieee80211_txq * 6181 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 6182 { 6183 struct lkpi_hw *lhw; 6184 struct ieee80211_txq *txq; 6185 struct lkpi_txq *ltxq; 6186 6187 lhw = HW_TO_LHW(hw); 6188 txq = NULL; 6189 6190 IMPROVE_TXQ("LOCKING"); 6191 6192 /* Check that we are scheduled. */ 6193 if (lhw->txq_generation[ac] == 0) 6194 goto out; 6195 6196 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 6197 if (ltxq == NULL) 6198 goto out; 6199 if (ltxq->txq_generation == lhw->txq_generation[ac]) 6200 goto out; 6201 6202 ltxq->txq_generation = lhw->txq_generation[ac]; 6203 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 6204 txq = <xq->txq; 6205 TAILQ_ELEM_INIT(ltxq, txq_entry); 6206 6207 out: 6208 return (txq); 6209 } 6210 6211 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 6212 struct ieee80211_txq *txq, bool withoutpkts) 6213 { 6214 struct lkpi_hw *lhw; 6215 struct lkpi_txq *ltxq; 6216 bool ltxq_empty; 6217 6218 ltxq = TXQ_TO_LTXQ(txq); 6219 6220 IMPROVE_TXQ("LOCKING"); 6221 6222 /* Only schedule if work to do or asked to anyway. */ 6223 LKPI_80211_LTXQ_LOCK(ltxq); 6224 ltxq_empty = skb_queue_empty(<xq->skbq); 6225 LKPI_80211_LTXQ_UNLOCK(ltxq); 6226 if (!withoutpkts && ltxq_empty) 6227 goto out; 6228 6229 /* 6230 * Make sure we do not double-schedule. We do this by checking tqe_prev, 6231 * the previous entry in our tailq. tqe_prev is always valid if this entry 6232 * is queued, tqe_next may be NULL if this is the only element in the list. 6233 */ 6234 if (ltxq->txq_entry.tqe_prev != NULL) 6235 goto out; 6236 6237 lhw = HW_TO_LHW(hw); 6238 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 6239 out: 6240 return; 6241 } 6242 6243 void 6244 linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 6245 struct ieee80211_txq *txq) 6246 { 6247 struct lkpi_hw *lhw; 6248 struct ieee80211_txq *ntxq; 6249 struct ieee80211_tx_control control; 6250 struct sk_buff *skb; 6251 6252 lhw = HW_TO_LHW(hw); 6253 6254 LKPI_80211_LHW_TXQ_LOCK(lhw); 6255 ieee80211_txq_schedule_start(hw, txq->ac); 6256 do { 6257 ntxq = ieee80211_next_txq(hw, txq->ac); 6258 if (ntxq == NULL) 6259 break; 6260 6261 memset(&control, 0, sizeof(control)); 6262 control.sta = ntxq->sta; 6263 do { 6264 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 6265 if (skb == NULL) 6266 break; 6267 lkpi_80211_mo_tx(hw, &control, skb); 6268 } while(1); 6269 6270 ieee80211_return_txq(hw, ntxq, false); 6271 } while (1); 6272 ieee80211_txq_schedule_end(hw, txq->ac); 6273 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 6274 } 6275 6276 /* -------------------------------------------------------------------------- */ 6277 6278 struct lkpi_cfg80211_bss { 6279 u_int refcnt; 6280 struct cfg80211_bss bss; 6281 }; 6282 6283 struct lkpi_cfg80211_get_bss_iter_lookup { 6284 struct wiphy *wiphy; 6285 struct linuxkpi_ieee80211_channel *chan; 6286 const uint8_t *bssid; 6287 const uint8_t *ssid; 6288 size_t ssid_len; 6289 enum ieee80211_bss_type bss_type; 6290 enum ieee80211_privacy privacy; 6291 6292 /* 6293 * Something to store a copy of the result as the net80211 scan cache 6294 * is not refoucnted so a scan entry might go away any time. 6295 */ 6296 bool match; 6297 struct cfg80211_bss *bss; 6298 }; 6299 6300 static void 6301 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 6302 { 6303 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 6304 size_t ielen; 6305 6306 lookup = arg; 6307 6308 /* Do not try to find another match. */ 6309 if (lookup->match) 6310 return; 6311 6312 /* Nothing to store result. */ 6313 if (lookup->bss == NULL) 6314 return; 6315 6316 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 6317 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 6318 /* We have no idea what to compare to as the drivers only request ANY */ 6319 return; 6320 } 6321 6322 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 6323 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 6324 /* We have no idea what to compare to as the drivers only request ANY */ 6325 return; 6326 } 6327 6328 if (lookup->chan != NULL) { 6329 struct linuxkpi_ieee80211_channel *chan; 6330 6331 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 6332 se->se_chan->ic_freq); 6333 if (chan == NULL || chan != lookup->chan) 6334 return; 6335 } 6336 6337 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 6338 return; 6339 6340 if (lookup->ssid) { 6341 if (lookup->ssid_len != se->se_ssid[1] || 6342 se->se_ssid[1] == 0) 6343 return; 6344 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 6345 return; 6346 } 6347 6348 ielen = se->se_ies.len; 6349 6350 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 6351 M_LKPI80211, M_NOWAIT | M_ZERO); 6352 if (lookup->bss->ies == NULL) 6353 return; 6354 6355 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 6356 lookup->bss->ies->len = ielen; 6357 if (ielen) 6358 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 6359 6360 lookup->match = true; 6361 } 6362 6363 struct cfg80211_bss * 6364 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 6365 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 6366 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 6367 { 6368 struct lkpi_cfg80211_bss *lbss; 6369 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 6370 struct lkpi_hw *lhw; 6371 struct ieee80211vap *vap; 6372 6373 lhw = wiphy_priv(wiphy); 6374 6375 /* Let's hope we can alloc. */ 6376 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 6377 if (lbss == NULL) { 6378 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 6379 return (NULL); 6380 } 6381 6382 lookup.wiphy = wiphy; 6383 lookup.chan = chan; 6384 lookup.bssid = bssid; 6385 lookup.ssid = ssid; 6386 lookup.ssid_len = ssid_len; 6387 lookup.bss_type = bss_type; 6388 lookup.privacy = privacy; 6389 lookup.match = false; 6390 lookup.bss = &lbss->bss; 6391 6392 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 6393 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 6394 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 6395 if (!lookup.match) { 6396 free(lbss, M_LKPI80211); 6397 return (NULL); 6398 } 6399 6400 refcount_init(&lbss->refcnt, 1); 6401 return (&lbss->bss); 6402 } 6403 6404 void 6405 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 6406 { 6407 struct lkpi_cfg80211_bss *lbss; 6408 6409 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 6410 6411 /* Free everything again on refcount ... */ 6412 if (refcount_release(&lbss->refcnt)) { 6413 free(lbss->bss.ies, M_LKPI80211); 6414 free(lbss, M_LKPI80211); 6415 } 6416 } 6417 6418 void 6419 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 6420 { 6421 struct lkpi_hw *lhw; 6422 struct ieee80211com *ic; 6423 struct ieee80211vap *vap; 6424 6425 lhw = wiphy_priv(wiphy); 6426 ic = lhw->ic; 6427 6428 /* 6429 * If we haven't called ieee80211_ifattach() yet 6430 * or there is no VAP, there are no scans to flush. 6431 */ 6432 if (ic == NULL || 6433 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 6434 return; 6435 6436 /* Should only happen on the current one? Not seen it late enough. */ 6437 IEEE80211_LOCK(ic); 6438 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 6439 ieee80211_scan_flush(vap); 6440 IEEE80211_UNLOCK(ic); 6441 } 6442 6443 /* -------------------------------------------------------------------------- */ 6444 6445 /* 6446 * hw->conf get initialized/set in various places for us: 6447 * - linuxkpi_ieee80211_alloc_hw(): flags 6448 * - linuxkpi_ieee80211_ifattach(): chandef 6449 * - lkpi_ic_vap_create(): listen_interval 6450 * - lkpi_ic_set_channel(): chandef, flags 6451 */ 6452 6453 int lkpi_80211_update_chandef(struct ieee80211_hw *hw, 6454 struct ieee80211_chanctx_conf *new) 6455 { 6456 struct cfg80211_chan_def *cd; 6457 uint32_t changed; 6458 int error; 6459 6460 changed = 0; 6461 if (new == NULL || new->def.chan == NULL) 6462 cd = NULL; 6463 else 6464 cd = &new->def; 6465 6466 if (cd && cd->chan != hw->conf.chandef.chan) { 6467 /* Copy; the chan pointer is fine and will stay valid. */ 6468 hw->conf.chandef = *cd; 6469 changed |= IEEE80211_CONF_CHANGE_CHANNEL; 6470 } 6471 IMPROVE("IEEE80211_CONF_CHANGE_PS, IEEE80211_CONF_CHANGE_POWER"); 6472 6473 if (changed == 0) 6474 return (0); 6475 6476 error = lkpi_80211_mo_config(hw, changed); 6477 return (error); 6478 } 6479 6480 /* -------------------------------------------------------------------------- */ 6481 6482 MODULE_VERSION(linuxkpi_wlan, 1); 6483 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 6484 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 6485