1 /*- 2 * Copyright (c) 2020-2026 The FreeBSD Foundation 3 * Copyright (c) 2020-2025 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 /* 43 * TODO: 44 * - lots :) 45 * - HW_CRYPTO: we need a "keystore" and an ordered list for suspend/resume. 46 */ 47 48 #include <sys/param.h> 49 #include <sys/types.h> 50 #include <sys/kernel.h> 51 #include <sys/errno.h> 52 #include <sys/malloc.h> 53 #include <sys/module.h> 54 #include <sys/mutex.h> 55 #include <sys/sbuf.h> 56 #include <sys/socket.h> 57 #include <sys/sysctl.h> 58 #include <sys/queue.h> 59 #include <sys/taskqueue.h> 60 #include <sys/libkern.h> 61 62 #include <net/if.h> 63 #include <net/if_var.h> 64 #include <net/if_media.h> 65 #include <net/ethernet.h> 66 67 #include <net80211/ieee80211_var.h> 68 #include <net80211/ieee80211_proto.h> 69 #include <net80211/ieee80211_ratectl.h> 70 #include <net80211/ieee80211_radiotap.h> 71 #include <net80211/ieee80211_vht.h> 72 73 #define LINUXKPI_NET80211 74 #include <net/mac80211.h> 75 76 #include <linux/workqueue.h> 77 #include <linux/rculist.h> 78 #include "linux_80211.h" 79 80 /* #define LKPI_80211_USE_SCANLIST */ 81 /* #define LKPI_80211_BGSCAN */ 82 #define LKPI_80211_WME 83 #define LKPI_80211_HW_CRYPTO 84 #define LKPI_80211_HT 85 #define LKPI_80211_VHT 86 87 #if defined(LKPI_80211_VHT) && !defined(LKPI_80211_HT) 88 #define LKPI_80211_HT 89 #endif 90 #if defined(LKPI_80211_HT) && !defined(LKPI_80211_HW_CRYPTO) 91 #define LKPI_80211_HW_CRYPTO 92 #endif 93 94 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 95 96 /* XXX-BZ really want this and others in queue.h */ 97 #define TAILQ_ELEM_INIT(elm, field) do { \ 98 (elm)->field.tqe_next = NULL; \ 99 (elm)->field.tqe_prev = NULL; \ 100 } while (0) 101 102 /* -------------------------------------------------------------------------- */ 103 104 SYSCTL_DECL(_compat_linuxkpi); 105 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 106 "LinuxKPI 802.11 compatibility layer"); 107 108 static int lkpi_suspend_type = 1; 109 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, suspend_type, CTLFLAG_RW, 110 &lkpi_suspend_type, 0, 111 "LinuxKPI 802.11 suspend type bitmask (0=off, 1=net80211, 2=wowlan"); 112 113 static bool lkpi_order_scanlist = false; 114 SYSCTL_BOOL(_compat_linuxkpi_80211, OID_AUTO, order_scanlist, CTLFLAG_RW, 115 &lkpi_order_scanlist, 0, "Enable LinuxKPI 802.11 scan list shuffeling"); 116 117 #if defined(LKPI_80211_HW_CRYPTO) 118 static bool lkpi_hwcrypto = false; 119 SYSCTL_BOOL(_compat_linuxkpi_80211, OID_AUTO, hw_crypto, CTLFLAG_RDTUN, 120 &lkpi_hwcrypto, 0, "Enable LinuxKPI 802.11 hardware crypto offload"); 121 122 static bool lkpi_hwcrypto_tkip = false; 123 SYSCTL_BOOL(_compat_linuxkpi_80211, OID_AUTO, tkip, CTLFLAG_RDTUN, 124 &lkpi_hwcrypto_tkip, 0, "Enable LinuxKPI 802.11 TKIP crypto offload"); 125 #endif 126 127 /* Keep public for as long as header files are using it too. */ 128 int linuxkpi_debug_80211; 129 130 #ifdef LINUXKPI_DEBUG_80211 131 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 132 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 133 134 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 135 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 136 #define TRACEOK(_fmt, ...) if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 137 printf("%s:%d: TRACEPOINT " _fmt "\n", __func__, __LINE__, ##__VA_ARGS__) 138 #else 139 #define UNIMPLEMENTED do { } while (0) 140 #define TRACEOK(...) do { } while (0) 141 #endif 142 143 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 144 #ifndef PREP_TX_INFO_DURATION 145 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 146 #endif 147 148 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 149 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 150 151 /* IEEE 802.11-05/0257r1 */ 152 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 153 154 /* IEEE 802.11e Table 20i-UP-to-AC mappings. */ 155 static const uint8_t ieee80211e_up_to_ac[] = { 156 IEEE80211_AC_BE, 157 IEEE80211_AC_BK, 158 IEEE80211_AC_BK, 159 IEEE80211_AC_BE, 160 IEEE80211_AC_VI, 161 IEEE80211_AC_VI, 162 IEEE80211_AC_VO, 163 IEEE80211_AC_VO, 164 #if 0 165 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 166 #endif 167 }; 168 169 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 170 /* 171 * XXX TODO need a "glue layer" to link cfg80211 ops to 172 * mac80211 and to the driver or net80211. 173 * Can we pass some on 1:1? Need to compare the (*f)(). 174 */ 175 }; 176 177 #if 0 178 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 179 struct ieee80211_node *); 180 #endif 181 static void lkpi_sw_scan_task(void *, int); 182 static void lkpi_80211_txq_tx_one(struct lkpi_sta *, struct mbuf *); 183 static void lkpi_80211_txq_task(void *, int); 184 static void lkpi_80211_lhw_rxq_task(void *, int); 185 static void lkpi_ieee80211_free_skb_mbuf(void *); 186 #ifdef LKPI_80211_WME 187 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 188 #endif 189 static int lkpi_80211_update_chandef(struct ieee80211_hw *, 190 struct ieee80211_chanctx_conf *); 191 static void lkpi_ieee80211_wake_queues_locked(struct ieee80211_hw *); 192 193 static const char * 194 lkpi_rate_info_bw_to_str(enum rate_info_bw bw) 195 { 196 197 switch (bw) { 198 199 case RATE_INFO_BW_20: 200 return ("20"); 201 break; 202 case RATE_INFO_BW_5: 203 return ("5"); 204 break; 205 case RATE_INFO_BW_10: 206 return ("10"); 207 break; 208 case RATE_INFO_BW_40: 209 return ("40"); 210 break; 211 case RATE_INFO_BW_80: 212 return ("80"); 213 break; 214 case RATE_INFO_BW_160: 215 return ("160"); 216 break; 217 case RATE_INFO_BW_HE_RU: 218 IMPROVE("nl80211_he_ru_alloc"); 219 return ("HE_RU"); 220 break; 221 case RATE_INFO_BW_320: 222 return ("320"); 223 break; 224 case RATE_INFO_BW_EHT_RU: 225 IMPROVE("nl80211_eht_ru_alloc"); 226 return ("EHT_RU"); 227 break; 228 default: 229 return ("?"); 230 break; 231 } 232 } 233 234 static void 235 lkpi_nl80211_sta_info_to_str(struct sbuf *s, const char *prefix, 236 const uint64_t flags) 237 { 238 int bit, i; 239 240 sbuf_printf(s, "%s %#010jx", prefix, flags); 241 242 i = 0; 243 for (bit = 0; bit < BITS_PER_TYPE(flags); bit++) { 244 245 if ((flags & BIT_ULL(bit)) == 0) 246 continue; 247 248 #define EXPAND_CASE(_flag) \ 249 case NL80211_STA_INFO_ ## _flag: \ 250 sbuf_printf(s, "%c%s", (i == 0) ? '<' : ',', #_flag); \ 251 i++; \ 252 break; 253 254 switch (bit) { 255 EXPAND_CASE(BEACON_RX) 256 EXPAND_CASE(BEACON_SIGNAL_AVG) 257 EXPAND_CASE(BSS_PARAM) 258 EXPAND_CASE(CHAIN_SIGNAL) 259 EXPAND_CASE(CHAIN_SIGNAL_AVG) 260 EXPAND_CASE(CONNECTED_TIME) 261 EXPAND_CASE(INACTIVE_TIME) 262 EXPAND_CASE(SIGNAL) 263 EXPAND_CASE(SIGNAL_AVG) 264 EXPAND_CASE(STA_FLAGS) 265 EXPAND_CASE(RX_BITRATE) 266 EXPAND_CASE(RX_PACKETS) 267 EXPAND_CASE(RX_BYTES) 268 EXPAND_CASE(RX_DROP_MISC) 269 EXPAND_CASE(TX_BITRATE) 270 EXPAND_CASE(TX_PACKETS) 271 EXPAND_CASE(TX_BYTES) 272 EXPAND_CASE(TX_BYTES64) 273 EXPAND_CASE(RX_BYTES64) 274 EXPAND_CASE(TX_FAILED) 275 EXPAND_CASE(TX_RETRIES) 276 EXPAND_CASE(RX_DURATION) 277 EXPAND_CASE(TX_DURATION) 278 EXPAND_CASE(ACK_SIGNAL) 279 EXPAND_CASE(ACK_SIGNAL_AVG) 280 default: 281 sbuf_printf(s, "%c?%d", (i == 0) ? '<' : ',', bit); 282 break; 283 } 284 } 285 #undef EXPAND_CASE 286 if (i > 0) 287 sbuf_printf(s, ">"); 288 sbuf_printf(s, "\n"); 289 } 290 291 static void 292 lkpi_80211_dump_lvif_stas(struct lkpi_vif *lvif, struct sbuf *s, bool dump_queues) 293 { 294 struct lkpi_hw *lhw; 295 struct ieee80211_hw *hw; 296 struct ieee80211vap *vap; 297 struct ieee80211_vif *vif; 298 struct lkpi_sta *lsta; 299 struct ieee80211_sta *sta; 300 struct station_info sinfo; 301 int error; 302 uint8_t tid; 303 304 vif = LVIF_TO_VIF(lvif); 305 vap = LVIF_TO_VAP(lvif); 306 lhw = vap->iv_ic->ic_softc; 307 hw = LHW_TO_HW(lhw); 308 309 wiphy_lock(hw->wiphy); 310 list_for_each_entry(lsta, &lvif->lsta_list, lsta_list) { 311 sta = LSTA_TO_STA(lsta); 312 313 sbuf_putc(s, '\n'); 314 sbuf_printf(s, "lsta %p sta %p added_to_drv %d\n", lsta, sta, lsta->added_to_drv); 315 316 memset(&sinfo, 0, sizeof(sinfo)); 317 error = lkpi_80211_mo_sta_statistics(hw, vif, sta, &sinfo); 318 if (error == EEXIST) /* Not added to driver. */ 319 continue; 320 if (error == ENOTSUPP) { 321 sbuf_printf(s, " sta_statistics not supported\n"); 322 continue; 323 } 324 if (error != 0) { 325 sbuf_printf(s, " sta_statistics failed: %d\n", error); 326 continue; 327 } 328 329 /* If no RX_BITRATE is reported, try to fill it in from the lsta sinfo. */ 330 if ((sinfo.filled & BIT_ULL(NL80211_STA_INFO_RX_BITRATE)) == 0 && 331 (lsta->sinfo.filled & BIT_ULL(NL80211_STA_INFO_RX_BITRATE)) != 0) { 332 memcpy(&sinfo.rxrate, &lsta->sinfo.rxrate, sizeof(sinfo.rxrate)); 333 sinfo.filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE); 334 } 335 /* If no CHAIN_SIGNAL is reported, try to fill it in from the lsta sinfo. */ 336 if ((sinfo.filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL)) == 0 && 337 (lsta->sinfo.filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL)) != 0) { 338 sinfo.chains = lsta->sinfo.chains; 339 memcpy(sinfo.chain_signal, lsta->sinfo.chain_signal, 340 sizeof(sinfo.chain_signal)); 341 sinfo.filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL); 342 } 343 344 lkpi_nl80211_sta_info_to_str(s, " nl80211_sta_info (valid fields)", sinfo.filled); 345 sbuf_printf(s, " connected_time %u inactive_time %u\n", 346 sinfo.connected_time, sinfo.inactive_time); 347 sbuf_printf(s, " rx_bytes %ju rx_packets %u rx_dropped_misc %u\n", 348 (uintmax_t)sinfo.rx_bytes, sinfo.rx_packets, sinfo.rx_dropped_misc); 349 sbuf_printf(s, " rx_duration %ju rx_beacon %u rx_beacon_signal_avg %d\n", 350 (uintmax_t)sinfo.rx_duration, sinfo.rx_beacon, (int8_t)sinfo.rx_beacon_signal_avg); 351 352 sbuf_printf(s, " tx_bytes %ju tx_packets %u tx_failed %u\n", 353 (uintmax_t)sinfo.tx_bytes, sinfo.tx_packets, sinfo.tx_failed); 354 sbuf_printf(s, " tx_duration %ju tx_retries %u\n", 355 (uintmax_t)sinfo.tx_duration, sinfo.tx_retries); 356 357 sbuf_printf(s, " signal %d signal_avg %d ack_signal %d avg_ack_signal %d\n", 358 sinfo.signal, sinfo.signal_avg, sinfo.ack_signal, sinfo.avg_ack_signal); 359 sbuf_printf(s, " generation %d assoc_req_ies_len %zu chains %#04x\n", 360 sinfo.generation, sinfo.assoc_req_ies_len, sinfo.chains); 361 362 for (int i = 0; i < nitems(sinfo.chain_signal) && i < IEEE80211_MAX_CHAINS; i++) { 363 if (!(sinfo.chains & BIT(i))) 364 continue; 365 sbuf_printf(s, " chain[%d] signal %d signal_avg %d\n", 366 i, (int8_t)sinfo.chain_signal[i], (int8_t)sinfo.chain_signal_avg[i]); 367 } 368 369 /* assoc_req_ies, bss_param, sta_flags */ 370 371 sbuf_printf(s, " rxrate: flags %b bw %u(%s) legacy %u kbit/s mcs %u nss %u\n", 372 sinfo.rxrate.flags, CFG80211_RATE_INFO_FLAGS_BITS, 373 sinfo.rxrate.bw, lkpi_rate_info_bw_to_str(sinfo.rxrate.bw), 374 sinfo.rxrate.legacy * 100, 375 sinfo.rxrate.mcs, sinfo.rxrate.nss); 376 sbuf_printf(s, " he_dcm %u he_gi %u he_ru_alloc %u eht_gi %u\n", 377 sinfo.rxrate.he_dcm, sinfo.rxrate.he_gi, sinfo.rxrate.he_ru_alloc, 378 sinfo.rxrate.eht_gi); 379 sbuf_printf(s, " txrate: flags %b bw %u(%s) legacy %u kbit/s mcs %u nss %u\n", 380 sinfo.txrate.flags, CFG80211_RATE_INFO_FLAGS_BITS, 381 sinfo.txrate.bw, lkpi_rate_info_bw_to_str(sinfo.txrate.bw), 382 sinfo.txrate.legacy * 100, 383 sinfo.txrate.mcs, sinfo.txrate.nss); 384 sbuf_printf(s, " he_dcm %u he_gi %u he_ru_alloc %u eht_gi %u\n", 385 sinfo.txrate.he_dcm, sinfo.txrate.he_gi, sinfo.txrate.he_ru_alloc, 386 sinfo.txrate.eht_gi); 387 388 if (!dump_queues) 389 continue; 390 391 /* Dump queue information. */ 392 sbuf_printf(s, " Queue information:\n"); 393 sbuf_printf(s, " frms direct tx %ju\n", lsta->frms_tx); 394 for (tid = 0; tid <= IEEE80211_NUM_TIDS; tid++) { 395 struct lkpi_txq *ltxq; 396 397 if (sta->txq[tid] == NULL) { 398 sbuf_printf(s, " tid %-2u NOQ\n", tid); 399 continue; 400 } 401 402 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 403 #ifdef __notyet__ 404 sbuf_printf(s, " tid %-2u flags: %b " 405 "txq_generation %u skbq len %d\n", 406 tid, ltxq->flags, LKPI_TXQ_FLAGS_BITS, 407 ltxq->txq_generation, 408 skb_queue_len_lockless(<xq->skbq)); 409 #else 410 sbuf_printf(s, " tid %-2u " 411 "txq_generation %u skbq len %d\n", 412 tid, 413 ltxq->txq_generation, 414 skb_queue_len_lockless(<xq->skbq)); 415 #endif 416 sbuf_printf(s, " frms_enqueued %ju frms_dequeued %ju " 417 "frms_tx %ju\n", 418 ltxq->frms_enqueued, ltxq->frms_dequeued, ltxq->frms_tx); 419 } 420 } 421 wiphy_unlock(hw->wiphy); 422 } 423 424 static int 425 lkpi_80211_dump_stas(SYSCTL_HANDLER_ARGS) 426 { 427 struct lkpi_vif *lvif; 428 struct sbuf s; 429 430 if (req->newptr) 431 return (EPERM); 432 433 lvif = (struct lkpi_vif *)arg1; 434 435 sbuf_new_for_sysctl(&s, NULL, 1024, req); 436 437 lkpi_80211_dump_lvif_stas(lvif, &s, false); 438 439 sbuf_finish(&s); 440 sbuf_delete(&s); 441 442 return (0); 443 } 444 445 static int 446 lkpi_80211_dump_sta_queues(SYSCTL_HANDLER_ARGS) 447 { 448 struct lkpi_vif *lvif; 449 struct sbuf s; 450 451 if (req->newptr) 452 return (EPERM); 453 454 lvif = (struct lkpi_vif *)arg1; 455 456 sbuf_new_for_sysctl(&s, NULL, 1024, req); 457 458 lkpi_80211_dump_lvif_stas(lvif, &s, true); 459 460 sbuf_finish(&s); 461 sbuf_delete(&s); 462 463 return (0); 464 } 465 466 static enum ieee80211_sta_rx_bandwidth 467 lkpi_cw_to_rx_bw(enum nl80211_chan_width cw) 468 { 469 switch (cw) { 470 case NL80211_CHAN_WIDTH_320: 471 return (IEEE80211_STA_RX_BW_320); 472 case NL80211_CHAN_WIDTH_160: 473 case NL80211_CHAN_WIDTH_80P80: 474 return (IEEE80211_STA_RX_BW_160); 475 case NL80211_CHAN_WIDTH_80: 476 return (IEEE80211_STA_RX_BW_80); 477 case NL80211_CHAN_WIDTH_40: 478 return (IEEE80211_STA_RX_BW_40); 479 case NL80211_CHAN_WIDTH_20: 480 case NL80211_CHAN_WIDTH_20_NOHT: 481 return (IEEE80211_STA_RX_BW_20); 482 case NL80211_CHAN_WIDTH_5: 483 case NL80211_CHAN_WIDTH_10: 484 /* Unsupported input. */ 485 return (IEEE80211_STA_RX_BW_20); 486 } 487 } 488 489 static enum nl80211_chan_width 490 lkpi_rx_bw_to_cw(enum ieee80211_sta_rx_bandwidth rx_bw) 491 { 492 switch (rx_bw) { 493 case IEEE80211_STA_RX_BW_20: 494 return (NL80211_CHAN_WIDTH_20); /* _NOHT */ 495 case IEEE80211_STA_RX_BW_40: 496 return (NL80211_CHAN_WIDTH_40); 497 case IEEE80211_STA_RX_BW_80: 498 return (NL80211_CHAN_WIDTH_80); 499 case IEEE80211_STA_RX_BW_160: 500 return (NL80211_CHAN_WIDTH_160); /* 80P80 */ 501 case IEEE80211_STA_RX_BW_320: 502 return (NL80211_CHAN_WIDTH_320); 503 } 504 } 505 506 static enum ieee80211_bss_changed 507 lkpi_sta_supp_rates(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 508 struct ieee80211_node *ni, 509 enum ieee80211_rate_control_changed_flags *rc_changed) 510 { 511 struct lkpi_vif *lvif; 512 struct lkpi_sta *lsta; 513 struct ieee80211_sta *sta; 514 enum ieee80211_bss_changed bss_changed; 515 struct ieee80211_supported_band *supband; 516 uint32_t supp_rates, basic_rates; 517 int band, i, n; 518 519 bss_changed = 0; 520 521 band = vif->bss_conf.chanreq.oper.chan->band; 522 supband = hw->wiphy->bands[band]; 523 if (supband == NULL) 524 return (bss_changed); 525 526 lvif = VIF_TO_LVIF(vif); 527 lsta = ni->ni_drv_data; 528 sta = LSTA_TO_STA(lsta); 529 530 supp_rates = 0; 531 basic_rates = 0; 532 533 for (n = 0; n < ni->ni_rates.rs_nrates; n++) { 534 uint8_t supp_rate; 535 uint16_t bitr; 536 bool basic; 537 538 /* Note: net80211 rates are in 0.5Mbit/s, e.g., 108 is 54Mbit/s. */ 539 supp_rate = ni->ni_rates.rs_rates[n] & (~IEEE80211_RATE_BASIC); 540 basic = (ni->ni_rates.rs_rates[n] & IEEE80211_RATE_BASIC) != 0; 541 542 for (i = 0; i < supband->n_bitrates; i++) { 543 /* Band bitrates are * 10 so, e.g., 55 is 5.5Mbit/s. */ 544 /* To match net80211 rates we need to do a DIV5. */ 545 bitr = howmany(supband->bitrates[i].bitrate, 5); 546 if (supp_rate == bitr) { 547 supp_rates |= BIT(i); 548 if (basic) 549 basic_rates |= BIT(i); 550 } 551 /* 552 * We are not checking if we are doing 11b or 11g and 553 * if the rate is fine for each. 554 */ 555 } 556 TRACE_RATES("supp_rate %u basic %d supp_rates %#010x basic_rates %#010x", 557 supp_rate, basic, supp_rates, basic_rates); 558 } 559 if (basic_rates != 0 && 560 vif->bss_conf.basic_rates != basic_rates) { 561 TRACE_RATES("vif bss_conf basic_rates %#010x update to %#010x", 562 vif->bss_conf.basic_rates, basic_rates); 563 vif->bss_conf.basic_rates = basic_rates; 564 bss_changed |= BSS_CHANGED_BASIC_RATES; 565 } 566 /* Guard against net80211 not having any rates set when we get here. */ 567 if (supp_rates == 0) 568 supp_rates = vif->bss_conf.basic_rates; 569 if (sta->deflink.supp_rates[band] != supp_rates) { 570 TRACE_RATES("band %d supp_rates %#010x update to %#010x", 571 band, sta->deflink.supp_rates[band], supp_rates); 572 sta->deflink.supp_rates[band] = supp_rates; 573 if (rc_changed != NULL) 574 *rc_changed |= IEEE80211_RC_SUPP_RATES_CHANGED; 575 } 576 577 /* 578 * br_mask got initialized in lkpi_ic_vap_create(). 579 * Do a basic rates check against it for the current band if we are 580 * in a state to have all the above information. 581 */ 582 TRACE_RATES("band %d br_mask legacy %#010x & basic_rates %#010x != 0?", 583 band, lvif->br_mask.control[band].legacy, vif->bss_conf.basic_rates); 584 if (band == vif->bss_conf.chanreq.oper.chan->band && 585 (lvif->br_mask.control[band].legacy & vif->bss_conf.basic_rates) == 0) { 586 /* In our setup this should never happen. */ 587 printf("%s: WARNING: no acceptable basic rate %#010x & %#010x\n", 588 __func__, lvif->br_mask.control[band].legacy, vif->bss_conf.basic_rates); 589 } 590 591 /* 592 * XXX-BZ we should track changes here as well and call or let the 593 * caller call lkpi_80211_mo_set_bitrate_mask() if needed. 594 * Note: the call in lkpi_sta_scan_to_auth() still have to 595 * happen unconditionally for the initial setting. 596 */ 597 #if defined(LKPI_80211_HT) 598 if (supband->ht_cap.ht_supported) { 599 memcpy(lvif->br_mask.control[band].ht_mcs, 600 supband->ht_cap.mcs.rx_mask, 601 sizeof(lvif->br_mask.control[band].ht_mcs)); 602 #if defined(LINUXKPI_DEBUG_80211) 603 for (int i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { 604 TRACE_RATES("band %d ht_mcs[%d] %#010x", 605 band, i, lvif->br_mask.control[band].ht_mcs[i]); 606 } 607 #endif 608 } 609 #endif /* LKPI_80211_HT */ 610 #if defined(LKPI_80211_VHT) 611 if (supband->vht_cap.vht_supported) { 612 uint16_t mcs_map, val; 613 uint8_t nss; 614 615 mcs_map = supband->vht_cap.vht_mcs.tx_mcs_map; 616 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) { 617 TRACE_RATES("band %d nss %d vht_mcs.tx_mcs_map %#06x mcs_map %#06x & 0x3 = %#06x", 618 band, nss, supband->vht_cap.vht_mcs.tx_mcs_map, mcs_map, mcs_map & 0x3); 619 switch (mcs_map & 0x3) { 620 case IEEE80211_VHT_MCS_SUPPORT_0_7: 621 val = 0x00ff; 622 break; 623 case IEEE80211_VHT_MCS_SUPPORT_0_8: 624 val = 0x01ff; 625 break; 626 case IEEE80211_VHT_MCS_SUPPORT_0_9: 627 val = 0x03ff; 628 break; 629 case IEEE80211_VHT_MCS_NOT_SUPPORTED: 630 val = 0; 631 break; 632 } 633 lvif->br_mask.control[band].vht_mcs[nss] = val; 634 TRACE_RATES("band %d nss %d vht_mcs %#06x", 635 band, nss, lvif->br_mask.control[band].vht_mcs[nss]); 636 mcs_map >>= 2; 637 } 638 } 639 #endif /* LKPI_80211_VHT */ 640 641 return (bss_changed); 642 } 643 644 static void 645 lkpi_sync_chanctx_cw_from_rx_bw(struct ieee80211_hw *hw, 646 struct ieee80211_vif *vif, struct ieee80211_sta *sta) 647 { 648 struct lkpi_hw *lhw; 649 struct ieee80211_chanctx_conf *chanctx_conf; 650 enum ieee80211_sta_rx_bandwidth old_bw; 651 uint32_t changed; 652 653 lockdep_assert_wiphy(hw->wiphy); 654 655 chanctx_conf = rcu_dereference_protected(vif->bss_conf.chanctx_conf, 656 lockdep_is_held(&hw->wiphy->mtx)); 657 if (chanctx_conf == NULL) 658 return; 659 660 old_bw = lkpi_cw_to_rx_bw(chanctx_conf->def.width); 661 TRACE_RATES("old_bw %d sta->deflink.bandwidth %d hw->conf.chandef.width %d", 662 old_bw, sta->deflink.bandwidth, lkpi_cw_to_rx_bw(hw->conf.chandef.width)); 663 664 lhw = HW_TO_LHW(hw); 665 if (old_bw == sta->deflink.bandwidth && 666 (!lhw->emulate_chanctx || old_bw == lkpi_cw_to_rx_bw(hw->conf.chandef.width))) 667 return; 668 669 chanctx_conf->def.width = lkpi_rx_bw_to_cw(sta->deflink.bandwidth); 670 if (chanctx_conf->def.width == NL80211_CHAN_WIDTH_20 && 671 !sta->deflink.ht_cap.ht_supported) 672 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 673 674 chanctx_conf->min_def = chanctx_conf->def; 675 676 vif->bss_conf.chanreq.oper.width = chanctx_conf->def.width; 677 678 TRACE_RATES("chanctx_conf %p def.width %d sta->deflink.bandwidth %d " 679 "ht_supported %d vht_supported %d", 680 chanctx_conf, chanctx_conf->def.width, sta->deflink.bandwidth, 681 sta->deflink.ht_cap.ht_supported, sta->deflink.vht_cap.vht_supported); 682 683 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 684 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 685 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 686 } 687 688 #if defined(LKPI_80211_HT) 689 static void 690 lkpi_sta_sync_ht_from_ni(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 691 struct ieee80211_sta *sta, struct ieee80211_node *ni) 692 { 693 struct ieee80211vap *vap; 694 uint8_t *ie; 695 struct ieee80211_ht_cap *htcap; 696 struct ieee80211_sta_ht_cap *ht_cap, *sta_ht_cap; 697 enum nl80211_band band; 698 int i, rx_nss; 699 700 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) { 701 sta->deflink.ht_cap.ht_supported = false; 702 TRACE_RATES("HT ht_supported %d", sta->deflink.ht_cap.ht_supported); 703 return; 704 } 705 706 sta->deflink.ht_cap.ht_supported = true; 707 708 /* htcap->ampdu_params_info */ 709 vap = ni->ni_vap; 710 sta->deflink.ht_cap.ampdu_density = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 711 if (sta->deflink.ht_cap.ampdu_density > vap->iv_ampdu_density) 712 sta->deflink.ht_cap.ampdu_density = vap->iv_ampdu_density; 713 sta->deflink.ht_cap.ampdu_factor = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 714 if (sta->deflink.ht_cap.ampdu_factor > vap->iv_ampdu_rxmax) 715 sta->deflink.ht_cap.ampdu_factor = vap->iv_ampdu_rxmax; 716 717 ie = ni->ni_ies.htcap_ie; 718 KASSERT(ie != NULL, ("%s: HT but no htcap_ie on ni %p\n", __func__, ni)); 719 if (ie[0] == IEEE80211_ELEMID_VENDOR) 720 ie += 4; 721 ie += 2; 722 htcap = (struct ieee80211_ht_cap *)ie; 723 sta->deflink.ht_cap.cap = htcap->cap_info; 724 sta->deflink.ht_cap.mcs = htcap->mcs; 725 726 /* 727 * 802.11n-2009 20.6 Parameters for HT MCSs gives the mandatory/ 728 * optional MCS for Nss=1..4. We need to check the first four 729 * MCS sets from the Rx MCS Bitmask; then there is MCS 32 and 730 * MCS33.. is UEQM. 731 */ 732 band = vif->bss_conf.chanctx_conf->def.chan->band; 733 ht_cap = &hw->wiphy->bands[band]->ht_cap; 734 sta_ht_cap = &sta->deflink.ht_cap; 735 rx_nss = 0; 736 for (i = 0; i < 4; i++) { 737 TRACE_RATES("HT rx_mask[%d] sta %#04x & hw %#04x", i, 738 sta_ht_cap->mcs.rx_mask[i], ht_cap->mcs.rx_mask[i]); 739 sta_ht_cap->mcs.rx_mask[i] = 740 sta_ht_cap->mcs.rx_mask[i] & ht_cap->mcs.rx_mask[i]; 741 /* XXX-BZ masking unequal modulation? */ 742 743 if (sta_ht_cap->mcs.rx_mask[i] != 0) 744 rx_nss++; 745 } 746 if (rx_nss > 0) { 747 TRACE_RATES("HT rx_nss = max(%d, %d)", rx_nss, sta->deflink.rx_nss); 748 sta->deflink.rx_nss = MAX(rx_nss, sta->deflink.rx_nss); 749 } else { 750 sta->deflink.ht_cap.ht_supported = false; 751 TRACE_RATES("HT ht_supported %d", sta->deflink.ht_cap.ht_supported); 752 return; 753 } 754 755 if ((sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) != 0 && 756 IEEE80211_IS_CHAN_HT40(ni->ni_chan)) 757 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_40; 758 else 759 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_20; 760 761 IMPROVE("sta->wme"); 762 763 if (sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_MAX_AMSDU) 764 sta->deflink.agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_7935; 765 else 766 sta->deflink.agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_3839; 767 sta->deflink.agg.max_rc_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_BA; 768 #ifdef __handled_by_driver__ /* iwlwifi only? actually unused? */ 769 for (i = 0; i < nitems(sta.deflink.agg.max_tid_amsdu_len); i++) { 770 sta->deflink.agg.max_tid_amsdu_len[j] = ; 771 } 772 #endif 773 TRACE_RATES("HT ht_supported %d", sta->deflink.ht_cap.ht_supported); 774 } 775 #endif 776 777 #if defined(LKPI_80211_VHT) 778 static void 779 lkpi_sta_sync_vht_from_ni(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 780 struct ieee80211_sta *sta, struct ieee80211_node *ni) 781 { 782 struct ieee80211_sta_vht_cap *vht_cap, *sta_vht_cap;; 783 enum ieee80211_sta_rx_bandwidth bw; 784 enum nl80211_band band; 785 uint32_t width; 786 int rx_nss; 787 uint16_t rx_map, tx_map; 788 789 if ((ni->ni_flags & IEEE80211_NODE_VHT) == 0 || 790 !IEEE80211_IS_CHAN_VHT_5GHZ(ni->ni_chan)) { 791 sta->deflink.vht_cap.vht_supported = false; 792 TRACE_RATES("VHT vht_supported %d", sta->deflink.vht_cap.vht_supported); 793 return; 794 } 795 796 sta->deflink.vht_cap.vht_supported = true; 797 798 sta->deflink.vht_cap.cap = ni->ni_vhtcap; 799 sta->deflink.vht_cap.vht_mcs = ni->ni_vht_mcsinfo; 800 801 /* 802 * If VHT20/40 are selected do not update the bandwidth 803 * from HT but stya on VHT. 804 */ 805 if (ni->ni_vht_chanwidth == IEEE80211_VHT_CHANWIDTH_USE_HT) 806 goto skip_bw; 807 808 bw = sta->deflink.bandwidth; 809 width = (sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK); 810 switch (width) { 811 /* Deprecated. */ 812 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: 813 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: 814 bw = IEEE80211_STA_RX_BW_160; 815 break; 816 default: 817 /* Check if we do support 160Mhz somehow after all. */ 818 if ((sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) != 0) 819 bw = IEEE80211_STA_RX_BW_160; 820 else 821 bw = IEEE80211_STA_RX_BW_80; 822 } 823 /* 824 * While we can set what is possibly supported we also need to be 825 * on a channel which supports that bandwidth; e.g., we can support 826 * VHT160 but the AP only does VHT80. 827 * Further ni_chan will also have filtered out what we disabled 828 * by configuration. 829 * Once net80211 channel selection is fixed for 802.11-2020 and 830 * VHT160 we can possibly spare ourselves the above. 831 */ 832 if (bw == IEEE80211_STA_RX_BW_160 && 833 !IEEE80211_IS_CHAN_VHT160(ni->ni_chan) && 834 !IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) 835 bw = IEEE80211_STA_RX_BW_80; 836 if (bw == IEEE80211_STA_RX_BW_80 && 837 !IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 838 bw = sta->deflink.bandwidth; 839 sta->deflink.bandwidth = bw; 840 skip_bw: 841 842 band = vif->bss_conf.chanctx_conf->def.chan->band; 843 vht_cap = &hw->wiphy->bands[band]->vht_cap; 844 sta_vht_cap = &sta->deflink.vht_cap; 845 846 rx_nss = 0; 847 rx_map = tx_map = 0; 848 for (int i = 7; i >= 0; i--) { 849 uint8_t card, sta; 850 851 card = (vht_cap->vht_mcs.rx_mcs_map >> (2 * i)) & 0x3; 852 sta = (sta_vht_cap->vht_mcs.rx_mcs_map >> (2 * i)) & 0x3; 853 if (sta != IEEE80211_VHT_MCS_NOT_SUPPORTED) { 854 if (card == IEEE80211_VHT_MCS_NOT_SUPPORTED) 855 sta = IEEE80211_VHT_MCS_NOT_SUPPORTED; 856 else { 857 sta = MIN(sta, card); 858 if (rx_nss == 0) 859 rx_nss = i + 1; 860 } 861 } 862 rx_map |= (sta << (2 * i)); 863 864 card = (vht_cap->vht_mcs.tx_mcs_map >> (2 * i)) & 0x3; 865 sta = (sta_vht_cap->vht_mcs.tx_mcs_map >> (2 * i)) & 0x3; 866 if (sta != IEEE80211_VHT_MCS_NOT_SUPPORTED) { 867 if (card == IEEE80211_VHT_MCS_NOT_SUPPORTED) 868 sta = IEEE80211_VHT_MCS_NOT_SUPPORTED; 869 else 870 sta = MIN(sta, card); 871 } 872 tx_map |= (sta << (2 * i)); 873 } 874 TRACE_RATES("VHT rx_mcs_map %#010x->%#010x, tx_mcs_map %#010x->%#010x, rx_nss = %d", 875 sta_vht_cap->vht_mcs.rx_mcs_map, rx_map, 876 sta_vht_cap->vht_mcs.tx_mcs_map, tx_map, rx_nss); 877 sta_vht_cap->vht_mcs.rx_mcs_map = rx_map; 878 sta_vht_cap->vht_mcs.tx_mcs_map = tx_map; 879 if (rx_nss > 0) { 880 TRACE_RATES("VHT rx_nss = max(%d, %d)", rx_nss, sta->deflink.rx_nss); 881 sta->deflink.rx_nss = MAX(rx_nss, sta->deflink.rx_nss); 882 } else { 883 sta->deflink.vht_cap.vht_supported = false; 884 TRACE_RATES("VHT vht_supported %d", sta->deflink.vht_cap.vht_supported); 885 return; 886 } 887 888 switch (sta->deflink.vht_cap.cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) { 889 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: 890 sta->deflink.agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454; 891 break; 892 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: 893 sta->deflink.agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_7991; 894 break; 895 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: 896 default: 897 sta->deflink.agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_3895; 898 break; 899 } 900 901 TRACE_RATES("VHT vht_supported %d", sta->deflink.vht_cap.vht_supported); 902 } 903 #endif 904 905 static enum ieee80211_bss_changed 906 lkpi_sta_sync_from_ni(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 907 struct ieee80211_sta *sta, struct ieee80211_node *ni, bool updchnctx) 908 { 909 enum ieee80211_bss_changed bss_changed; 910 enum ieee80211_rate_control_changed_flags rc_changed; 911 enum ieee80211_sta_rx_bandwidth bandwidth; 912 uint8_t rx_nss; 913 914 if (updchnctx) 915 lockdep_assert_wiphy(hw->wiphy); 916 917 bss_changed = 0; 918 rc_changed = 0; 919 920 bandwidth = sta->deflink.bandwidth; 921 rx_nss = sta->deflink.rx_nss; 922 923 TRACE_RATES("updchnctx %d bandwidth %d rx_nss %u", 924 updchnctx, bandwidth, rx_nss); 925 926 /* 927 * Ensure rx_nss is at least 1 as otherwise drivers run into 928 * unexpected problems. 929 */ 930 sta->deflink.rx_nss = 1; 931 932 #if defined(LKPI_80211_HT) 933 lkpi_sta_sync_ht_from_ni(hw, vif, sta, ni); 934 #endif 935 #if defined(LKPI_80211_VHT) 936 lkpi_sta_sync_vht_from_ni(hw, vif, sta, ni); 937 #endif 938 939 /* 940 * We are also called from node allocation which net80211 941 * can do even on `ifconfig down`; in that case the chanctx 942 * may still be valid and we get a discrepancy between 943 * sta and chanctx. Thus do not try to update the chanctx 944 * when called from lkpi_lsta_alloc(). 945 */ 946 if (updchnctx) 947 lkpi_sync_chanctx_cw_from_rx_bw(hw, vif, sta); 948 949 bss_changed |= lkpi_sta_supp_rates(hw, vif, ni, &rc_changed); 950 951 if (sta->deflink.bandwidth != bandwidth) 952 rc_changed |= IEEE80211_RC_BW_CHANGED; 953 if (sta->deflink.rx_nss != rx_nss) 954 rc_changed |= IEEE80211_RC_NSS_CHANGED; 955 956 TRACE_RATES("updchnctx %d rc_change %#010x bss_changed %#010jx " 957 "bandwidth %d rx_nss %u", 958 updchnctx, rc_changed, (uintmax_t)bss_changed, 959 sta->deflink.bandwidth, sta->deflink.rx_nss); 960 961 if (rc_changed != 0) 962 lkpi_80211_mo_link_sta_rc_update(hw, vif, &sta->deflink, rc_changed); 963 964 return (bss_changed); 965 } 966 967 #if 0 968 static uint8_t 969 lkpi_get_max_rx_chains(struct ieee80211_node *ni) 970 { 971 uint8_t chains; 972 #if defined(LKPI_80211_HT) || defined(LKPI_80211_VHT) 973 struct lkpi_sta *lsta; 974 struct ieee80211_sta *sta; 975 976 lsta = ni->ni_drv_data; 977 sta = LSTA_TO_STA(lsta); 978 #endif 979 980 chains = 1; 981 #if defined(LKPI_80211_HT) 982 IMPROVE("We should factor counting MCS/NSS out for sync and here"); 983 if (sta->deflink.ht_cap.ht_supported) 984 chains = MAX(chains, sta->deflink.rx_nss); 985 #endif 986 987 #if defined(LKPI_80211_VHT) 988 if (sta->deflink.vht_cap.vht_supported) 989 chains = MAX(chains, sta->deflink.rx_nss); 990 #endif 991 992 return (chains); 993 } 994 #endif 995 996 static void 997 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 998 const char *_f, int _l) 999 { 1000 1001 #ifdef LINUXKPI_DEBUG_80211 1002 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 1003 return; 1004 if (lsta == NULL) 1005 return; 1006 1007 printf("%s:%d lsta %p ni %p sta %p\n", 1008 _f, _l, lsta, ni, &lsta->sta); 1009 if (ni != NULL) 1010 ieee80211_dump_node(NULL, ni); 1011 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 1012 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 1013 &lsta->kc[0], lsta->state, lsta->added_to_drv, lsta->in_mgd); 1014 #endif 1015 } 1016 1017 static void 1018 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 1019 { 1020 1021 lockdep_assert_wiphy(lsta->hw->wiphy); 1022 1023 KASSERT(!list_empty(&lsta->lsta_list), 1024 ("%s: lsta %p ni %p\n", __func__, lsta, lsta->ni)); 1025 list_del_init(&lsta->lsta_list); 1026 } 1027 1028 static struct lkpi_sta * 1029 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 1030 struct ieee80211_hw *hw, struct ieee80211_node *ni) 1031 { 1032 struct lkpi_sta *lsta; 1033 struct lkpi_vif *lvif; 1034 struct ieee80211_vif *vif; 1035 struct ieee80211_sta *sta; 1036 int band, i, tid; 1037 1038 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 1039 M_NOWAIT | M_ZERO); 1040 if (lsta == NULL) 1041 return (NULL); 1042 1043 lsta->hw = hw; 1044 lsta->added_to_drv = false; 1045 lsta->state = IEEE80211_STA_NOTEXIST; 1046 /* 1047 * Link the ni to the lsta here without taking a reference. 1048 * For one we would have to take the reference in node_init() 1049 * as ieee80211_alloc_node() will initialise the refcount after us. 1050 * For the other a ni and an lsta are 1:1 mapped and always together 1051 * from [ic_]node_alloc() to [ic_]node_free() so we are essentally 1052 * using the ni references for the lsta as well despite it being 1053 * two separate allocations. 1054 */ 1055 lsta->ni = ni; 1056 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 1057 ni->ni_drv_data = lsta; 1058 1059 lvif = VAP_TO_LVIF(vap); 1060 vif = LVIF_TO_VIF(lvif); 1061 sta = LSTA_TO_STA(lsta); 1062 1063 IEEE80211_ADDR_COPY(sta->addr, mac); 1064 1065 /* TXQ */ 1066 for (tid = 0; tid < nitems(sta->txq); tid++) { 1067 struct lkpi_txq *ltxq; 1068 1069 /* We are not limiting ourselves to hw.queues here. */ 1070 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 1071 M_LKPI80211, M_NOWAIT | M_ZERO); 1072 if (ltxq == NULL) 1073 goto cleanup; 1074 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 1075 if (tid == IEEE80211_NUM_TIDS) { 1076 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 1077 free(ltxq, M_LKPI80211); 1078 continue; 1079 } 1080 IMPROVE("AP/if we support non-STA here too"); 1081 ltxq->txq.ac = IEEE80211_AC_VO; 1082 } else { 1083 ltxq->txq.ac = ieee80211e_up_to_ac[tid & 7]; 1084 } 1085 ltxq->flags = 0; 1086 ltxq->txq.vif = vif; 1087 ltxq->txq.tid = tid; 1088 ltxq->txq.sta = sta; 1089 TAILQ_ELEM_INIT(ltxq, txq_entry); 1090 skb_queue_head_init(<xq->skbq); 1091 LKPI_80211_LTXQ_LOCK_INIT(ltxq); 1092 sta->txq[tid] = <xq->txq; 1093 } 1094 1095 /* Deflink information. */ 1096 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1097 struct ieee80211_supported_band *supband; 1098 uint32_t rate_mandatory;; 1099 1100 supband = hw->wiphy->bands[band]; 1101 if (supband == NULL) 1102 continue; 1103 1104 switch (band) { 1105 case NL80211_BAND_2GHZ: 1106 /* We have to assume 11g support here. */ 1107 rate_mandatory = IEEE80211_RATE_MANDATORY_G | 1108 IEEE80211_RATE_MANDATORY_B; 1109 break; 1110 case NL80211_BAND_5GHZ: 1111 rate_mandatory = IEEE80211_RATE_MANDATORY_A; 1112 break; 1113 default: 1114 continue; 1115 } 1116 1117 for (i = 0; i < supband->n_bitrates; i++) { 1118 if ((supband->bitrates[i].flags & rate_mandatory) != 0) 1119 sta->deflink.supp_rates[band] |= BIT(i); 1120 } 1121 } 1122 1123 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 1124 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_20; 1125 sta->deflink.agg.max_rc_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_BA; 1126 sta->deflink.rx_nss = 1; 1127 sta->deflink.sta = sta; 1128 1129 (void)lkpi_sta_sync_from_ni(hw, vif, sta, ni, false); 1130 1131 IMPROVE("he, eht, bw_320, ... smps_mode, .."); 1132 1133 /* Link configuration. */ 1134 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 1135 sta->link[0] = &sta->deflink; 1136 for (i = 1; i < nitems(sta->link); i++) { 1137 IMPROVE("more links; only link[0] = deflink currently."); 1138 } 1139 IMPROVE("11be"); 1140 sta->mlo = false; 1141 1142 /* Deferred TX path. */ 1143 LKPI_80211_LSTA_TXQ_LOCK_INIT(lsta); 1144 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 1145 mbufq_init(&lsta->txq, 32 * NAPI_POLL_WEIGHT); 1146 lsta->txq_ready = true; 1147 1148 return (lsta); 1149 1150 cleanup: 1151 for (; tid >= 0; tid--) { 1152 struct lkpi_txq *ltxq; 1153 1154 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1155 LKPI_80211_LTXQ_LOCK_DESTROY(ltxq); 1156 free(sta->txq[tid], M_LKPI80211); 1157 } 1158 free(lsta, M_LKPI80211); 1159 return (NULL); 1160 } 1161 1162 static void 1163 lkpi_lsta_free(struct lkpi_sta *lsta, struct ieee80211_node *ni) 1164 { 1165 struct mbuf *m; 1166 1167 if (lsta->added_to_drv) 1168 panic("%s: Trying to free an lsta still known to firmware: " 1169 "lsta %p ni %p added_to_drv %d\n", 1170 __func__, lsta, ni, lsta->added_to_drv); 1171 1172 /* XXX-BZ free resources, ... */ 1173 IMPROVE(); 1174 1175 /* Drain sta->txq[] */ 1176 1177 LKPI_80211_LSTA_TXQ_LOCK(lsta); 1178 lsta->txq_ready = false; 1179 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 1180 1181 /* Drain taskq, won't be restarted until added_to_drv is set again. */ 1182 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 1183 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 1184 1185 /* Flush mbufq (make sure to release ni refs!). */ 1186 m = mbufq_dequeue(&lsta->txq); 1187 while (m != NULL) { 1188 struct ieee80211_node *nim; 1189 1190 nim = (struct ieee80211_node *)m->m_pkthdr.rcvif; 1191 if (nim != NULL) 1192 ieee80211_free_node(nim); 1193 m_freem(m); 1194 m = mbufq_dequeue(&lsta->txq); 1195 } 1196 KASSERT(mbufq_empty(&lsta->txq), ("%s: lsta %p has txq len %d != 0\n", 1197 __func__, lsta, mbufq_len(&lsta->txq))); 1198 LKPI_80211_LSTA_TXQ_LOCK_DESTROY(lsta); 1199 1200 /* Remove lsta from vif; that is done by the state machine. Should assert it? */ 1201 1202 IMPROVE("Make sure everything is cleaned up."); 1203 1204 /* Free lsta. */ 1205 lsta->ni = NULL; 1206 ni->ni_drv_data = NULL; 1207 free(lsta, M_LKPI80211); 1208 } 1209 1210 1211 static enum nl80211_band 1212 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 1213 { 1214 1215 if (IEEE80211_IS_CHAN_2GHZ(c)) 1216 return (NL80211_BAND_2GHZ); 1217 else if (IEEE80211_IS_CHAN_5GHZ(c)) 1218 return (NL80211_BAND_5GHZ); 1219 #ifdef __notyet__ 1220 else if () 1221 return (NL80211_BAND_6GHZ); 1222 else if () 1223 return (NL80211_BAND_60GHZ); 1224 else if (IEEE80211_IS_CHAN_GSM(c)) 1225 return (NL80211_BAND_XXX); 1226 #endif 1227 else 1228 panic("%s: unsupported band. c %p flags %#x\n", 1229 __func__, c, c->ic_flags); 1230 } 1231 1232 static uint32_t 1233 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 1234 { 1235 1236 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 1237 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 1238 switch (band) { 1239 case NL80211_BAND_2GHZ: 1240 return (IEEE80211_CHAN_2GHZ); 1241 break; 1242 case NL80211_BAND_5GHZ: 1243 return (IEEE80211_CHAN_5GHZ); 1244 break; 1245 case NL80211_BAND_60GHZ: 1246 break; 1247 case NL80211_BAND_6GHZ: 1248 break; 1249 default: 1250 panic("%s: unsupported band %u\n", __func__, band); 1251 break; 1252 } 1253 1254 IMPROVE(); 1255 return (0x00); 1256 } 1257 1258 #ifdef LINUXKPI_DEBUG_80211 1259 static const char * 1260 lkpi_nl80211_band_name(enum nl80211_band band) 1261 { 1262 switch (band) { 1263 case NL80211_BAND_2GHZ: 1264 return "2Ghz"; 1265 break; 1266 case NL80211_BAND_5GHZ: 1267 return "5Ghz"; 1268 break; 1269 case NL80211_BAND_60GHZ: 1270 return "60Ghz"; 1271 break; 1272 case NL80211_BAND_6GHZ: 1273 return "6Ghz"; 1274 break; 1275 default: 1276 panic("%s: unsupported band %u\n", __func__, band); 1277 break; 1278 } 1279 } 1280 #endif 1281 1282 #if 0 1283 static enum ieee80211_ac_numbers 1284 lkpi_ac_net_to_l80211(int ac) 1285 { 1286 1287 switch (ac) { 1288 case WME_AC_VO: 1289 return (IEEE80211_AC_VO); 1290 case WME_AC_VI: 1291 return (IEEE80211_AC_VI); 1292 case WME_AC_BE: 1293 return (IEEE80211_AC_BE); 1294 case WME_AC_BK: 1295 return (IEEE80211_AC_BK); 1296 default: 1297 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 1298 return (IEEE80211_AC_BE); 1299 } 1300 } 1301 #endif 1302 1303 static enum nl80211_iftype 1304 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 1305 { 1306 1307 switch (opmode) { 1308 case IEEE80211_M_IBSS: 1309 return (NL80211_IFTYPE_ADHOC); 1310 break; 1311 case IEEE80211_M_STA: 1312 return (NL80211_IFTYPE_STATION); 1313 break; 1314 case IEEE80211_M_WDS: 1315 return (NL80211_IFTYPE_WDS); 1316 break; 1317 case IEEE80211_M_HOSTAP: 1318 return (NL80211_IFTYPE_AP); 1319 break; 1320 case IEEE80211_M_MONITOR: 1321 return (NL80211_IFTYPE_MONITOR); 1322 break; 1323 case IEEE80211_M_MBSS: 1324 return (NL80211_IFTYPE_MESH_POINT); 1325 break; 1326 case IEEE80211_M_AHDEMO: 1327 /* FALLTHROUGH */ 1328 default: 1329 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 1330 /* FALLTHROUGH */ 1331 } 1332 return (NL80211_IFTYPE_UNSPECIFIED); 1333 } 1334 1335 #ifdef LKPI_80211_HW_CRYPTO 1336 static const char * 1337 lkpi_cipher_suite_to_name(uint32_t wlan_cipher_suite) 1338 { 1339 switch (wlan_cipher_suite) { 1340 case WLAN_CIPHER_SUITE_WEP40: 1341 return ("WEP40"); 1342 case WLAN_CIPHER_SUITE_WEP104: 1343 return ("WEP104"); 1344 case WLAN_CIPHER_SUITE_TKIP: 1345 return ("TKIP"); 1346 case WLAN_CIPHER_SUITE_CCMP: 1347 return ("CCMP"); 1348 case WLAN_CIPHER_SUITE_CCMP_256: 1349 return ("CCMP_256"); 1350 case WLAN_CIPHER_SUITE_GCMP: 1351 return ("GCMP"); 1352 case WLAN_CIPHER_SUITE_GCMP_256: 1353 return ("GCMP_256"); 1354 case WLAN_CIPHER_SUITE_AES_CMAC: 1355 return ("AES_CMAC"); 1356 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1357 return ("BIP_CMAC_256"); 1358 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1359 return ("BIP_GMAC_128"); 1360 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1361 return ("BIP_GMAC_256"); 1362 default: 1363 return ("??"); 1364 } 1365 } 1366 1367 static uint32_t 1368 lkpi_l80211_to_net80211_cyphers(struct ieee80211com *ic, 1369 uint32_t wlan_cipher_suite) 1370 { 1371 switch (wlan_cipher_suite) { 1372 case WLAN_CIPHER_SUITE_WEP40: 1373 return (IEEE80211_CRYPTO_WEP); 1374 case WLAN_CIPHER_SUITE_WEP104: 1375 return (IEEE80211_CRYPTO_WEP); 1376 case WLAN_CIPHER_SUITE_TKIP: 1377 return (IEEE80211_CRYPTO_TKIP); 1378 case WLAN_CIPHER_SUITE_CCMP: 1379 return (IEEE80211_CRYPTO_AES_CCM); 1380 case WLAN_CIPHER_SUITE_CCMP_256: 1381 return (IEEE80211_CRYPTO_AES_CCM_256); 1382 case WLAN_CIPHER_SUITE_GCMP: 1383 return (IEEE80211_CRYPTO_AES_GCM_128); 1384 case WLAN_CIPHER_SUITE_GCMP_256: 1385 return (IEEE80211_CRYPTO_AES_GCM_256); 1386 case WLAN_CIPHER_SUITE_AES_CMAC: 1387 return (IEEE80211_CRYPTO_BIP_CMAC_128); 1388 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1389 return (IEEE80211_CRYPTO_BIP_CMAC_256); 1390 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1391 return (IEEE80211_CRYPTO_BIP_GMAC_128); 1392 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1393 return (IEEE80211_CRYPTO_BIP_GMAC_256); 1394 default: 1395 ic_printf(ic, "%s: unknown WLAN Cipher Suite %#08x | %u (%s)\n", 1396 __func__, 1397 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff, 1398 lkpi_cipher_suite_to_name(wlan_cipher_suite)); 1399 return (0); 1400 } 1401 } 1402 1403 static uint32_t 1404 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 1405 { 1406 1407 switch (cipher) { 1408 case IEEE80211_CIPHER_WEP: 1409 if (keylen == (40/NBBY)) 1410 return (WLAN_CIPHER_SUITE_WEP40); 1411 else if (keylen == (104/NBBY)) 1412 return (WLAN_CIPHER_SUITE_WEP104); 1413 else { 1414 printf("%s: WEP with unsupported keylen %d\n", 1415 __func__, keylen * NBBY); 1416 return (0); 1417 } 1418 break; 1419 case IEEE80211_CIPHER_TKIP: 1420 return (WLAN_CIPHER_SUITE_TKIP); 1421 case IEEE80211_CIPHER_AES_CCM: 1422 return (WLAN_CIPHER_SUITE_CCMP); 1423 case IEEE80211_CIPHER_AES_CCM_256: 1424 return (WLAN_CIPHER_SUITE_CCMP_256); 1425 case IEEE80211_CIPHER_AES_GCM_128: 1426 return (WLAN_CIPHER_SUITE_GCMP); 1427 case IEEE80211_CIPHER_AES_GCM_256: 1428 return (WLAN_CIPHER_SUITE_GCMP_256); 1429 case IEEE80211_CIPHER_BIP_CMAC_128: 1430 return (WLAN_CIPHER_SUITE_AES_CMAC); 1431 case IEEE80211_CIPHER_BIP_CMAC_256: 1432 return (WLAN_CIPHER_SUITE_BIP_CMAC_256); 1433 case IEEE80211_CIPHER_BIP_GMAC_128: 1434 return (WLAN_CIPHER_SUITE_BIP_GMAC_128); 1435 case IEEE80211_CIPHER_BIP_GMAC_256: 1436 return (WLAN_CIPHER_SUITE_BIP_GMAC_256); 1437 1438 case IEEE80211_CIPHER_AES_OCB: 1439 case IEEE80211_CIPHER_TKIPMIC: 1440 /* 1441 * TKIP w/ hw MIC support 1442 * (gone wrong; should really be a crypto flag in net80211). 1443 */ 1444 case IEEE80211_CIPHER_CKIP: 1445 case IEEE80211_CIPHER_NONE: 1446 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 1447 break; 1448 default: 1449 printf("%s: unknown cipher %#010x\n", __func__, cipher); 1450 }; 1451 return (0); 1452 } 1453 #endif 1454 1455 #ifdef __notyet__ 1456 static enum ieee80211_sta_state 1457 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 1458 { 1459 1460 /* 1461 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 1462 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 1463 */ 1464 switch (state) { 1465 case IEEE80211_S_INIT: 1466 return (IEEE80211_STA_NOTEXIST); 1467 case IEEE80211_S_SCAN: 1468 return (IEEE80211_STA_NONE); 1469 case IEEE80211_S_AUTH: 1470 return (IEEE80211_STA_AUTH); 1471 case IEEE80211_S_ASSOC: 1472 return (IEEE80211_STA_ASSOC); 1473 case IEEE80211_S_RUN: 1474 return (IEEE80211_STA_AUTHORIZED); 1475 case IEEE80211_S_CAC: 1476 case IEEE80211_S_CSA: 1477 case IEEE80211_S_SLEEP: 1478 default: 1479 UNIMPLEMENTED; 1480 }; 1481 1482 return (IEEE80211_STA_NOTEXIST); 1483 } 1484 #endif 1485 1486 static struct linuxkpi_ieee80211_channel * 1487 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 1488 struct ieee80211_channel *c) 1489 { 1490 struct ieee80211_hw *hw; 1491 struct linuxkpi_ieee80211_channel *channels; 1492 enum nl80211_band band; 1493 int i, nchans; 1494 1495 hw = LHW_TO_HW(lhw); 1496 band = lkpi_net80211_chan_to_nl80211_band(c); 1497 if (hw->wiphy->bands[band] == NULL) 1498 return (NULL); 1499 1500 nchans = hw->wiphy->bands[band]->n_channels; 1501 if (nchans <= 0) 1502 return (NULL); 1503 1504 channels = hw->wiphy->bands[band]->channels; 1505 for (i = 0; i < nchans; i++) { 1506 if (channels[i].center_freq == c->ic_freq) 1507 return (&channels[i]); 1508 } 1509 1510 return (NULL); 1511 } 1512 1513 #if 0 1514 static struct linuxkpi_ieee80211_channel * 1515 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 1516 { 1517 struct linuxkpi_ieee80211_channel *chan; 1518 struct ieee80211_channel *c; 1519 struct lkpi_hw *lhw; 1520 1521 chan = NULL; 1522 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 1523 c = ni->ni_chan; 1524 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 1525 c = ic->ic_bsschan; 1526 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 1527 c = ic->ic_curchan; 1528 else 1529 c = NULL; 1530 1531 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 1532 lhw = ic->ic_softc; 1533 chan = lkpi_find_lkpi80211_chan(lhw, c); 1534 } 1535 1536 return (chan); 1537 } 1538 #endif 1539 1540 struct linuxkpi_ieee80211_channel * 1541 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 1542 { 1543 enum nl80211_band band; 1544 1545 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1546 struct ieee80211_supported_band *supband; 1547 struct linuxkpi_ieee80211_channel *channels; 1548 int i; 1549 1550 supband = wiphy->bands[band]; 1551 if (supband == NULL || supband->n_channels == 0) 1552 continue; 1553 1554 channels = supband->channels; 1555 for (i = 0; i < supband->n_channels; i++) { 1556 if (channels[i].center_freq == freq) 1557 return (&channels[i]); 1558 } 1559 } 1560 1561 return (NULL); 1562 } 1563 1564 #ifdef LKPI_80211_HW_CRYPTO 1565 static int 1566 lkpi_sta_del_keys(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1567 struct lkpi_sta *lsta) 1568 { 1569 int error; 1570 1571 if (!lkpi_hwcrypto) 1572 return (0); 1573 1574 lockdep_assert_wiphy(hw->wiphy); 1575 1576 if (vif->cfg.assoc && lsta->state == IEEE80211_STA_AUTHORIZED) { 1577 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1578 ic_printf(lsta->ni->ni_ic, 1579 "%d %lu %s: vif still assoc; not deleting keys\n", 1580 curthread->td_tid, jiffies, __func__); 1581 return (0); 1582 } 1583 1584 ieee80211_ref_node(lsta->ni); 1585 1586 error = 0; 1587 for (ieee80211_keyix keyix = 0; keyix < nitems(lsta->kc); keyix++) { 1588 struct ieee80211_key_conf *kc; 1589 int err; 1590 1591 if (lsta->kc[keyix] == NULL) 1592 continue; 1593 kc = lsta->kc[keyix]; 1594 1595 #ifdef LINUXKPI_DEBUG_80211 1596 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1597 ic_printf(lsta->ni->ni_ic, "%d %lu %s: running set_key cmd %d(%s) for " 1598 "sta %6D: keyidx %u hw_key_idx %u flags %b\n", 1599 curthread->td_tid, jiffies, __func__, 1600 DISABLE_KEY, "DISABLE", lsta->sta.addr, ":", 1601 kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1602 #endif 1603 1604 err = lkpi_80211_mo_set_key(hw, DISABLE_KEY, vif, 1605 LSTA_TO_STA(lsta), kc); 1606 if (err != 0) { 1607 ic_printf(lsta->ni->ni_ic, "%d %lu %s: set_key cmd %d(%s) for " 1608 "sta %6D failed: %d\n", curthread->td_tid, jiffies, __func__, 1609 DISABLE_KEY, "DISABLE", lsta->sta.addr, ":", err); 1610 error++; 1611 1612 /* 1613 * If we free the key here we will never be able to get it 1614 * removed from the driver/fw which will likely make us 1615 * crash (firmware). 1616 */ 1617 continue; 1618 } 1619 #ifdef LINUXKPI_DEBUG_80211 1620 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1621 ic_printf(lsta->ni->ni_ic, "%d %lu %s: set_key cmd %d(%s) for " 1622 "sta %6D succeeded: keyidx %u hw_key_idx %u flags %b\n", 1623 curthread->td_tid, jiffies, __func__, 1624 DISABLE_KEY, "DISABLE", lsta->sta.addr, ":", 1625 kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1626 #endif 1627 1628 lsta->kc[keyix] = NULL; 1629 free(kc, M_LKPI80211); 1630 } 1631 ieee80211_free_node(lsta->ni); 1632 return (error); 1633 } 1634 1635 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 1636 /* See also lkpi_sta_del_keys() these days. */ 1637 static int 1638 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1639 { 1640 struct ieee80211com *ic; 1641 struct lkpi_hw *lhw; 1642 struct ieee80211_hw *hw; 1643 struct lkpi_vif *lvif; 1644 struct lkpi_sta *lsta; 1645 struct ieee80211_vif *vif; 1646 struct ieee80211_sta *sta; 1647 struct ieee80211_node *ni; 1648 struct ieee80211_key_conf *kc; 1649 int error; 1650 1651 ic = vap->iv_ic; 1652 lhw = ic->ic_softc; 1653 hw = LHW_TO_HW(lhw); 1654 lvif = VAP_TO_LVIF(vap); 1655 vif = LVIF_TO_VIF(lvif); 1656 1657 /* 1658 * Make sure we do not make it here without going through 1659 * lkpi_iv_key_update_begin() first. 1660 */ 1661 lockdep_assert_wiphy(hw->wiphy); 1662 1663 ni = ieee80211_ref_node(vap->iv_bss); 1664 lsta = ni->ni_drv_data; 1665 if (lsta == NULL) { 1666 ic_printf(ic, "%s: ni %p (%6D) with lsta NULL\n", 1667 __func__, ni, ni->ni_bssid, ":"); 1668 ieee80211_free_node(ni); 1669 return (0); 1670 } 1671 1672 /* 1673 * While we are assoc we may still send packets. We cannot delete the 1674 * keys as otherwise packets could go out unencrypted. Some firmware 1675 * does not like this and will fire an assert. 1676 * net80211 needs to drive this better but given we want the disassoc 1677 * frame out and have to unlock we are open to a race currently. 1678 * This check should prevent problems. 1679 * How to test: run 800Mbit/s UDP traffic and during that restart your 1680 * supplicant. You want to survive that. 1681 */ 1682 if (vif->cfg.assoc && lsta->state == IEEE80211_STA_AUTHORIZED) { 1683 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1684 ic_printf(ic, "%d %lu %s: vif still assoc; not deleting keys\n", 1685 curthread->td_tid, jiffies, __func__); 1686 ieee80211_free_node(ni); 1687 return (0); 1688 } 1689 1690 if (IEEE80211_KEY_UNDEFINED(k)) { 1691 ic_printf(ic, "%s: vap %p key %p is undefined: %p %u\n", 1692 __func__, vap, k, k->wk_cipher, k->wk_keyix); 1693 ieee80211_free_node(ni); 1694 return (0); 1695 } 1696 1697 if (vap->iv_bss == NULL) { 1698 ic_printf(ic, "%s: iv_bss %p for vap %p is NULL\n", 1699 __func__, vap->iv_bss, vap); 1700 ieee80211_free_node(ni); 1701 return (0); 1702 } 1703 sta = LSTA_TO_STA(lsta); 1704 1705 if (lsta->kc[k->wk_keyix] == NULL) { 1706 #ifdef LINUXKPI_DEBUG_80211 1707 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1708 ic_printf(ic, "%d %lu %s: sta %6D and no key information, " 1709 "keyidx %u wk_macaddr %6D; returning success\n", 1710 curthread->td_tid, jiffies, __func__, sta->addr, ":", 1711 k->wk_keyix, k->wk_macaddr, ":"); 1712 #endif 1713 ieee80211_free_node(ni); 1714 return (1); 1715 } 1716 kc = lsta->kc[k->wk_keyix]; 1717 1718 #ifdef LINUXKPI_DEBUG_80211 1719 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1720 ic_printf(ic, "%d %lu %s: running set_key cmd %d(%s) for sta %6D: " 1721 "keyidx %u hw_key_idx %u flags %b\n", 1722 curthread->td_tid, jiffies, __func__, 1723 DISABLE_KEY, "DISABLE", sta->addr, ":", 1724 kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1725 #endif 1726 1727 error = lkpi_80211_mo_set_key(hw, DISABLE_KEY, vif, sta, kc); 1728 if (error != 0) { 1729 ic_printf(ic, "%d %lu %s: set_key cmd %d(%s) for sta %6D failed: %d\n", 1730 curthread->td_tid, jiffies, __func__, 1731 DISABLE_KEY, "DISABLE", sta->addr, ":", error); 1732 error = 0; 1733 goto out; 1734 } 1735 1736 #ifdef LINUXKPI_DEBUG_80211 1737 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1738 ic_printf(ic, "%d %lu %s: set_key cmd %d(%s) for sta %6D succeeded: " 1739 "keyidx %u hw_key_idx %u flags %b\n", 1740 curthread->td_tid, jiffies, __func__, 1741 DISABLE_KEY, "DISABLE", sta->addr, ":", 1742 kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1743 #endif 1744 lsta->kc[k->wk_keyix] = NULL; 1745 free(kc, M_LKPI80211); 1746 error = 1; 1747 out: 1748 ieee80211_free_node(ni); 1749 return (error); 1750 } 1751 1752 static int 1753 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 1754 { 1755 struct ieee80211com *ic; 1756 struct lkpi_hw *lhw; 1757 struct ieee80211_hw *hw; 1758 struct lkpi_vif *lvif; 1759 struct lkpi_sta *lsta; 1760 struct ieee80211_vif *vif; 1761 struct ieee80211_sta *sta; 1762 struct ieee80211_node *ni; 1763 struct ieee80211_key_conf *kc; 1764 struct ieee80211_key *wk; 1765 uint32_t lcipher; 1766 uint16_t exp_flags; 1767 uint8_t keylen; 1768 int error; 1769 1770 ic = vap->iv_ic; 1771 lhw = ic->ic_softc; 1772 hw = LHW_TO_HW(lhw); 1773 1774 /* 1775 * Make sure we do not make it here without going through 1776 * lkpi_iv_key_update_begin() first. 1777 */ 1778 lockdep_assert_wiphy(hw->wiphy); 1779 1780 if (IEEE80211_KEY_UNDEFINED(k)) { 1781 ic_printf(ic, "%s: vap %p key %p is undefined: %p %u\n", 1782 __func__, vap, k, k->wk_cipher, k->wk_keyix); 1783 return (0); 1784 } 1785 1786 if (vap->iv_bss == NULL) { 1787 ic_printf(ic, "%s: iv_bss %p for vap %p is NULL\n", 1788 __func__, vap->iv_bss, vap); 1789 return (0); 1790 } 1791 ni = ieee80211_ref_node(vap->iv_bss); 1792 lsta = ni->ni_drv_data; 1793 if (lsta == NULL) { 1794 ic_printf(ic, "%s: ni %p (%6D) with lsta NULL\n", 1795 __func__, ni, ni->ni_bssid, ":"); 1796 ieee80211_free_node(ni); 1797 return (0); 1798 } 1799 sta = LSTA_TO_STA(lsta); 1800 1801 keylen = ieee80211_crypto_get_key_len(k); 1802 lcipher = lkpi_net80211_to_l80211_cipher_suite( 1803 k->wk_cipher->ic_cipher, ieee80211_crypto_get_key_len(k)); 1804 switch (lcipher) { 1805 case WLAN_CIPHER_SUITE_TKIP: 1806 keylen += ieee80211_crypto_get_key_txmic_len(k); 1807 keylen += ieee80211_crypto_get_key_rxmic_len(k); 1808 break; 1809 case WLAN_CIPHER_SUITE_CCMP: 1810 case WLAN_CIPHER_SUITE_GCMP: 1811 break; 1812 default: 1813 ic_printf(ic, "%s: CIPHER SUITE %#x (%s) not supported\n", 1814 __func__, lcipher, lkpi_cipher_suite_to_name(lcipher)); 1815 IMPROVE(); 1816 ieee80211_free_node(ni); 1817 return (0); 1818 } 1819 1820 if (lsta->kc[k->wk_keyix] != NULL) { 1821 IMPROVE("Still in firmware? Del first. Can we assert this cannot happen?"); 1822 ic_printf(ic, "%s: sta %6D found with key information\n", 1823 __func__, sta->addr, ":"); 1824 kc = lsta->kc[k->wk_keyix]; 1825 lsta->kc[k->wk_keyix] = NULL; 1826 free(kc, M_LKPI80211); 1827 kc = NULL; /* safeguard */ 1828 } 1829 1830 kc = malloc(sizeof(*kc) + keylen, M_LKPI80211, M_WAITOK | M_ZERO); 1831 kc->_k = k; /* Save the pointer to net80211. */ 1832 kc->cipher = lcipher; 1833 kc->keyidx = k->wk_keyix; 1834 #if 0 1835 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 1836 #endif 1837 atomic64_set(&kc->tx_pn, k->wk_keytsc); 1838 kc->keylen = ieee80211_crypto_get_key_len(k); 1839 memcpy(kc->key, ieee80211_crypto_get_key_data(k), 1840 ieee80211_crypto_get_key_len(k)); 1841 1842 if (k->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV)) 1843 kc->flags |= IEEE80211_KEY_FLAG_PAIRWISE; 1844 if (k->wk_flags & IEEE80211_KEY_GROUP) 1845 kc->flags &= ~IEEE80211_KEY_FLAG_PAIRWISE; 1846 1847 kc->iv_len = k->wk_cipher->ic_header; 1848 kc->icv_len = k->wk_cipher->ic_trailer; 1849 1850 switch (kc->cipher) { 1851 case WLAN_CIPHER_SUITE_TKIP: 1852 memcpy(kc->key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY, 1853 ieee80211_crypto_get_key_txmic_data(k), 1854 ieee80211_crypto_get_key_txmic_len(k)); 1855 memcpy(kc->key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 1856 ieee80211_crypto_get_key_rxmic_data(k), 1857 ieee80211_crypto_get_key_rxmic_len(k)); 1858 break; 1859 case WLAN_CIPHER_SUITE_CCMP: 1860 case WLAN_CIPHER_SUITE_GCMP: 1861 break; 1862 default: 1863 /* currently UNREACH */ 1864 IMPROVE(); 1865 break; 1866 }; 1867 lsta->kc[k->wk_keyix] = kc; 1868 1869 #ifdef LINUXKPI_DEBUG_80211 1870 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1871 ic_printf(ic, "%d %lu %s: running set_key cmd %d(%s) for sta %6D: " 1872 "kc %p keyidx %u hw_key_idx %u keylen %u flags %b\n", 1873 curthread->td_tid, jiffies, __func__, 1874 SET_KEY, "SET", sta->addr, ":", kc, kc->keyidx, kc->hw_key_idx, 1875 kc->keylen, kc->flags, IEEE80211_KEY_FLAG_BITS); 1876 #endif 1877 1878 lvif = VAP_TO_LVIF(vap); 1879 vif = LVIF_TO_VIF(lvif); 1880 error = lkpi_80211_mo_set_key(hw, SET_KEY, vif, sta, kc); 1881 if (error != 0) { 1882 ic_printf(ic, "%d %lu %s: set_key cmd %d(%s) for sta %6D failed: %d\n", 1883 curthread->td_tid, jiffies, __func__, 1884 SET_KEY, "SET", sta->addr, ":", error); 1885 lsta->kc[k->wk_keyix] = NULL; 1886 free(kc, M_LKPI80211); 1887 ieee80211_free_node(ni); 1888 return (0); 1889 } 1890 1891 #ifdef LINUXKPI_DEBUG_80211 1892 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1893 ic_printf(ic, "%d %lu %s: set_key cmd %d(%s) for sta %6D succeeded: " 1894 "kc %p keyidx %u hw_key_idx %u flags %b\n", 1895 curthread->td_tid, jiffies, __func__, 1896 SET_KEY, "SET", sta->addr, ":", 1897 kc, kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1898 #endif 1899 1900 /* 1901 * Getting here means we support HW crypto offload. 1902 * Some drivers do not set the wiphy [n_]cipher_suites and thus we 1903 * never populate ic_cryptocaps. which means SWCRYPT will be set and we 1904 * should disable this now (before possibly setting other SW flags 1905 * again for when we need partial SW support). 1906 */ 1907 wk = __DECONST(struct ieee80211_key *, k); 1908 wk->wk_flags &= ~IEEE80211_KEY_SWCRYPT; 1909 1910 exp_flags = 0; 1911 switch (kc->cipher) { 1912 case WLAN_CIPHER_SUITE_TKIP: 1913 exp_flags = (IEEE80211_KEY_FLAG_PAIRWISE | 1914 IEEE80211_KEY_FLAG_PUT_IV_SPACE | 1915 IEEE80211_KEY_FLAG_GENERATE_MMIC | 1916 IEEE80211_KEY_FLAG_PUT_MIC_SPACE); 1917 #define TKIP_INVAL_COMBINATION \ 1918 (IEEE80211_KEY_FLAG_PUT_MIC_SPACE|IEEE80211_KEY_FLAG_GENERATE_MMIC) 1919 if ((kc->flags & TKIP_INVAL_COMBINATION) == TKIP_INVAL_COMBINATION) { 1920 ic_printf(ic, "%s: SET_KEY for %s returned invalid " 1921 "combination %b\n", __func__, 1922 lkpi_cipher_suite_to_name(kc->cipher), 1923 kc->flags, IEEE80211_KEY_FLAG_BITS); 1924 } 1925 #undef TKIP_INVAL_COMBINATION 1926 #ifdef __notyet__ 1927 /* Do flags surgery; special see linuxkpi_ieee80211_ifattach(). */ 1928 if ((kc->flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) != 0) { 1929 wk->wk_flags &= ~(IEEE80211_KEY_NOMICMGT|IEEE80211_KEY_NOMIC); 1930 wk->wk_flags |= IEEE80211_KEY_SWMIC; 1931 ic->ic_cryptocaps &= ~IEEE80211_CRYPTO_TKIPMIC 1932 } 1933 #endif 1934 break; 1935 case WLAN_CIPHER_SUITE_CCMP: 1936 case WLAN_CIPHER_SUITE_GCMP: 1937 exp_flags = (IEEE80211_KEY_FLAG_PAIRWISE | 1938 IEEE80211_KEY_FLAG_PUT_IV_SPACE | 1939 IEEE80211_KEY_FLAG_GENERATE_IV | 1940 IEEE80211_KEY_FLAG_GENERATE_IV_MGMT | /* Only needs IV geeration for MGMT frames. */ 1941 IEEE80211_KEY_FLAG_SW_MGMT_TX); /* MFP in software */ 1942 break; 1943 } 1944 if ((kc->flags & ~exp_flags) != 0) 1945 ic_printf(ic, "%s: SET_KEY for %s returned unexpected key flags: " 1946 " %#06x & ~%#06x = %b\n", __func__, 1947 lkpi_cipher_suite_to_name(kc->cipher), kc->flags, exp_flags, 1948 (kc->flags & ~exp_flags), IEEE80211_KEY_FLAG_BITS); 1949 1950 #ifdef __notyet__ 1951 /* Do flags surgery. */ 1952 if ((kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV_MGMT) == 0) 1953 wk->wk_flags |= IEEE80211_KEY_NOIVMGT; 1954 if ((kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV) == 0) 1955 wk->wk_flags |= IEEE80211_KEY_NOIV; 1956 #endif 1957 1958 ieee80211_free_node(ni); 1959 return (1); 1960 } 1961 1962 static void 1963 lkpi_iv_key_update_begin(struct ieee80211vap *vap) 1964 { 1965 struct ieee80211_node_table *nt; 1966 struct ieee80211com *ic; 1967 struct lkpi_hw *lhw; 1968 struct ieee80211_hw *hw; 1969 struct lkpi_vif *lvif; 1970 struct ieee80211_node *ni; 1971 bool icislocked, ntislocked; 1972 1973 ic = vap->iv_ic; 1974 lhw = ic->ic_softc; 1975 hw = LHW_TO_HW(lhw); 1976 lvif = VAP_TO_LVIF(vap); 1977 nt = &ic->ic_sta; 1978 1979 icislocked = IEEE80211_IS_LOCKED(ic); 1980 ntislocked = IEEE80211_NODE_IS_LOCKED(nt); 1981 1982 #ifdef LINUXKPI_DEBUG_80211 1983 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1984 ic_printf(ic, "%d %lu %s: vap %p ic %p %slocked nt %p %slocked " 1985 "lvif ic_unlocked %d nt_unlocked %d\n", 1986 curthread->td_tid, jiffies, __func__, vap, 1987 ic, icislocked ? "" : "un", nt, ntislocked ? "" : "un", 1988 lvif->ic_unlocked, lvif->nt_unlocked); 1989 #endif 1990 1991 /* 1992 * This is inconsistent net80211 locking to be fixed one day. 1993 */ 1994 /* Try to make sure the node does not go away while possibly unlocked. */ 1995 ni = NULL; 1996 if (icislocked || ntislocked) { 1997 if (vap->iv_bss != NULL) 1998 ni = ieee80211_ref_node(vap->iv_bss); 1999 } 2000 2001 if (icislocked) 2002 IEEE80211_UNLOCK(ic); 2003 if (ntislocked) 2004 IEEE80211_NODE_UNLOCK(nt); 2005 2006 wiphy_lock(hw->wiphy); 2007 2008 KASSERT(lvif->key_update_iv_bss == NULL, ("%s: key_update_iv_bss not NULL %p", 2009 __func__, lvif->key_update_iv_bss)); 2010 lvif->key_update_iv_bss = ni; 2011 2012 /* 2013 * ic/nt_unlocked could be a bool given we are under the lock and there 2014 * must only be a single thread. 2015 * In case anything in the future disturbs the order the refcnt will 2016 * help us catching problems a lot easier. 2017 */ 2018 if (icislocked) 2019 refcount_acquire(&lvif->ic_unlocked); 2020 if (ntislocked) 2021 refcount_acquire(&lvif->nt_unlocked); 2022 2023 /* 2024 * Stop the queues while doing key updates. 2025 */ 2026 ieee80211_stop_queues(hw); 2027 } 2028 2029 static void 2030 lkpi_iv_key_update_end(struct ieee80211vap *vap) 2031 { 2032 struct ieee80211_node_table *nt; 2033 struct ieee80211com *ic; 2034 struct lkpi_hw *lhw; 2035 struct ieee80211_hw *hw; 2036 struct lkpi_vif *lvif; 2037 bool icislocked, ntislocked; 2038 2039 ic = vap->iv_ic; 2040 lhw = ic->ic_softc; 2041 hw = LHW_TO_HW(lhw); 2042 lvif = VAP_TO_LVIF(vap); 2043 nt = &ic->ic_sta; 2044 2045 /* 2046 * Re-enabled the queues after the key update. 2047 */ 2048 lkpi_ieee80211_wake_queues_locked(hw); 2049 2050 icislocked = IEEE80211_IS_LOCKED(ic); 2051 MPASS(!icislocked); 2052 ntislocked = IEEE80211_NODE_IS_LOCKED(nt); 2053 MPASS(!ntislocked); 2054 2055 #ifdef LINUXKPI_DEBUG_80211 2056 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 2057 ic_printf(ic, "%d %lu %s: vap %p ic %p %slocked nt %p %slocked " 2058 "lvif ic_unlocked %d nt_unlocked %d\n", 2059 curthread->td_tid, jiffies, __func__, vap, 2060 ic, icislocked ? "" : "un", nt, ntislocked ? "" : "un", 2061 lvif->ic_unlocked, lvif->nt_unlocked); 2062 #endif 2063 2064 /* 2065 * Check under lock; see comment in lkpi_iv_key_update_begin(). 2066 * In case the refcnt gets out of sync locking in net80211 will 2067 * quickly barf as well (trying to unlock a lock not held). 2068 */ 2069 icislocked = refcount_release_if_last(&lvif->ic_unlocked); 2070 ntislocked = refcount_release_if_last(&lvif->nt_unlocked); 2071 2072 if (lvif->key_update_iv_bss != NULL) { 2073 ieee80211_free_node(lvif->key_update_iv_bss); 2074 lvif->key_update_iv_bss = NULL; 2075 } 2076 2077 wiphy_unlock(hw->wiphy); 2078 2079 /* 2080 * This is inconsistent net80211 locking to be fixed one day. 2081 * ic before nt to avoid a LOR. 2082 */ 2083 if (icislocked) 2084 IEEE80211_LOCK(ic); 2085 if (ntislocked) 2086 IEEE80211_NODE_LOCK(nt); 2087 } 2088 #endif 2089 2090 static void 2091 lkpi_cleanup_mcast_list_locked(struct lkpi_hw *lhw) 2092 { 2093 struct list_head *le, *next; 2094 struct netdev_hw_addr *addr; 2095 2096 if (lhw->mc_list.count != 0) { 2097 list_for_each_safe(le, next, &lhw->mc_list.addr_list) { 2098 addr = list_entry(le, struct netdev_hw_addr, addr_list); 2099 list_del(le); 2100 lhw->mc_list.count--; 2101 free(addr, M_LKPI80211); 2102 } 2103 } 2104 KASSERT(lhw->mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 2105 __func__, &lhw->mc_list, lhw->mc_list.count)); 2106 } 2107 2108 static u_int 2109 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 2110 { 2111 struct netdev_hw_addr_list *mc_list; 2112 struct netdev_hw_addr *addr; 2113 2114 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 2115 __func__, arg, sdl, cnt)); 2116 2117 mc_list = arg; 2118 /* If it is on the list already skip it. */ 2119 netdev_hw_addr_list_for_each(addr, mc_list) { 2120 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 2121 return (0); 2122 } 2123 2124 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 2125 if (addr == NULL) 2126 return (0); 2127 2128 INIT_LIST_HEAD(&addr->addr_list); 2129 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 2130 /* XXX this should be a netdev function? */ 2131 list_add(&addr->addr_list, &mc_list->addr_list); 2132 mc_list->count++; 2133 2134 #ifdef LINUXKPI_DEBUG_80211 2135 if (linuxkpi_debug_80211 & D80211_TRACE) 2136 printf("%s:%d: mc_list count %d: added %6D\n", 2137 __func__, __LINE__, mc_list->count, addr->addr, ":"); 2138 #endif 2139 2140 return (1); 2141 } 2142 2143 static void 2144 lkpi_update_mcast_filter_locked(struct ieee80211com *ic) 2145 { 2146 struct lkpi_hw *lhw; 2147 struct ieee80211_hw *hw; 2148 u64 mc; 2149 unsigned int changed_flags, flags; 2150 bool scanning; 2151 2152 lhw = ic->ic_softc; 2153 hw = LHW_TO_HW(lhw); 2154 2155 lockdep_assert_wiphy(hw->wiphy); 2156 2157 LKPI_80211_LHW_SCAN_LOCK(lhw); 2158 scanning = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2159 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2160 2161 LKPI_80211_LHW_MC_LOCK(lhw); 2162 2163 flags = 0; 2164 if (scanning) 2165 flags |= FIF_BCN_PRBRESP_PROMISC; 2166 /* The latter condition may not be as expected but seems wise. */ 2167 if (lhw->mc_all_multi || lhw->ops->prepare_multicast == NULL) 2168 flags |= FIF_ALLMULTI; 2169 2170 mc = lkpi_80211_mo_prepare_multicast(hw, &lhw->mc_list); 2171 2172 changed_flags = (lhw->mc_flags ^ flags) & FIF_FLAGS_MASK; 2173 lkpi_80211_mo_configure_filter(hw, changed_flags, &flags, mc); 2174 lhw->mc_flags = flags; 2175 2176 #ifdef LINUXKPI_DEBUG_80211 2177 if (linuxkpi_debug_80211 & D80211_TRACE) 2178 printf("%s: changed_flags %#06x count %d mc_flags %#010x\n", 2179 __func__, changed_flags, lhw->mc_list.count, lhw->mc_flags); 2180 #endif 2181 2182 LKPI_80211_LHW_MC_UNLOCK(lhw); 2183 } 2184 2185 static void 2186 lkpi_update_mcast_filter(struct ieee80211com *ic) 2187 { 2188 struct lkpi_hw *lhw; 2189 struct ieee80211_hw *hw; 2190 2191 lhw = ic->ic_softc; 2192 hw = LHW_TO_HW(lhw); 2193 2194 wiphy_lock(hw->wiphy); 2195 lkpi_update_mcast_filter_locked(ic); 2196 wiphy_unlock(hw->wiphy); 2197 } 2198 2199 static enum ieee80211_bss_changed 2200 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 2201 struct ieee80211vap *vap, const char *_f, int _l) 2202 { 2203 enum ieee80211_bss_changed bss_changed; 2204 2205 bss_changed = 0; 2206 2207 #ifdef LINUXKPI_DEBUG_80211 2208 if (linuxkpi_debug_80211 & D80211_TRACE) 2209 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 2210 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 2211 "sync_device_ts %u bss_changed %#010jx\n", 2212 __func__, __LINE__, _f, _l, 2213 vif->cfg.assoc, vif->cfg.aid, 2214 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 2215 vif->bss_conf.sync_dtim_count, 2216 (uintmax_t)vif->bss_conf.sync_tsf, 2217 vif->bss_conf.sync_device_ts, 2218 (uintmax_t)bss_changed); 2219 #endif 2220 2221 if (vif->bss_conf.beacon_int != ni->ni_intval) { 2222 vif->bss_conf.beacon_int = ni->ni_intval; 2223 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 2224 if (vif->bss_conf.beacon_int < 16) 2225 vif->bss_conf.beacon_int = 16; 2226 bss_changed |= BSS_CHANGED_BEACON_INT; 2227 } 2228 2229 /* 2230 * lkpi_iv_sta_recv_mgmt() will directly call into this function. 2231 * iwlwifi(4) in iwl_mvm_bss_info_changed_station_common() will 2232 * stop seesion protection the moment it sees 2233 * BSS_CHANGED_BEACON_INFO (with the expectations that it was 2234 * "a beacon from the associated AP"). It will also update 2235 * the beacon filter in that case. This is the only place 2236 * we set the BSS_CHANGED_BEACON_INFO on the non-teardown 2237 * path so make sure we only do run this check once we are 2238 * assoc. (*iv_recv_mgmt)() will be called before we enter 2239 * here so the ni will be updated with information from the 2240 * beacon via net80211::sta_recv_mgmt(). We also need to 2241 * make sure we do not do it on every beacon we still may 2242 * get so only do if something changed. vif->bss_conf.dtim_period 2243 * should be 0 as we start up (we also reset it on teardown). 2244 * 2245 * If we are assoc we need to make sure dtim_period is non-0. 2246 * 0 is a reserved value and drivers assume they can DIV by it. 2247 * In theory this means we need to wait for the first beacon 2248 * before we finalize the vif being assoc. In practise that 2249 * is harder until net80211 learns how to. Work around like 2250 * this for the moment. 2251 */ 2252 if (vif->cfg.assoc) { 2253 if (vif->bss_conf.dtim_period != ni->ni_dtim_period && 2254 ni->ni_dtim_period > 0) { 2255 vif->bss_conf.dtim_period = ni->ni_dtim_period; 2256 bss_changed |= BSS_CHANGED_BEACON_INFO; 2257 } else if (vif->bss_conf.dtim_period == 0) { 2258 vif->bss_conf.dtim_period = 1; 2259 bss_changed |= BSS_CHANGED_BEACON_INFO; 2260 } 2261 } 2262 2263 vif->bss_conf.sync_dtim_count = ni->ni_dtim_count; 2264 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 2265 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 2266 2267 #ifdef LINUXKPI_DEBUG_80211 2268 if (linuxkpi_debug_80211 & D80211_TRACE) 2269 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 2270 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 2271 "sync_device_ts %u bss_changed %#010jx\n", 2272 __func__, __LINE__, _f, _l, 2273 vif->cfg.assoc, vif->cfg.aid, 2274 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 2275 vif->bss_conf.sync_dtim_count, 2276 (uintmax_t)vif->bss_conf.sync_tsf, 2277 vif->bss_conf.sync_device_ts, 2278 (uintmax_t)bss_changed); 2279 #endif 2280 2281 return (bss_changed); 2282 } 2283 2284 static void 2285 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 2286 { 2287 struct ieee80211_hw *hw; 2288 int error; 2289 bool cancel; 2290 2291 TRACE_SCAN(lhw->ic, "scan_flags %b", lhw->scan_flags, LKPI_LHW_SCAN_BITS); 2292 2293 LKPI_80211_LHW_SCAN_LOCK(lhw); 2294 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2295 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2296 if (!cancel) 2297 return; 2298 2299 hw = LHW_TO_HW(lhw); 2300 2301 IEEE80211_UNLOCK(lhw->ic); 2302 wiphy_lock(hw->wiphy); 2303 /* Need to cancel the scan. */ 2304 lkpi_80211_mo_cancel_hw_scan(hw, vif); 2305 wiphy_unlock(hw->wiphy); 2306 2307 /* Need to make sure we see ieee80211_scan_completed. */ 2308 LKPI_80211_LHW_SCAN_LOCK(lhw); 2309 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 2310 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 2311 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2312 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2313 2314 IEEE80211_LOCK(lhw->ic); 2315 2316 if (cancel) 2317 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 2318 __func__, error, lhw, vif); 2319 } 2320 2321 static void 2322 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 2323 { 2324 struct lkpi_hw *lhw; 2325 int error; 2326 bool old; 2327 2328 lockdep_assert_wiphy(hw->wiphy); 2329 2330 old = hw->conf.flags & IEEE80211_CONF_IDLE; 2331 if (old == new) 2332 return; 2333 2334 hw->conf.flags ^= IEEE80211_CONF_IDLE; 2335 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 2336 if (error != 0 && error != EOPNOTSUPP) { 2337 lhw = HW_TO_LHW(hw); 2338 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 2339 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 2340 } 2341 } 2342 2343 static enum ieee80211_bss_changed 2344 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 2345 struct lkpi_hw *lhw) 2346 { 2347 struct ieee80211_hw *hw; 2348 struct lkpi_vif *lvif; 2349 enum ieee80211_bss_changed changed; 2350 2351 hw = LHW_TO_HW(lhw); 2352 lockdep_assert_wiphy(hw->wiphy); 2353 2354 changed = 0; 2355 sta->aid = 0; 2356 if (vif->cfg.assoc) { 2357 2358 vif->cfg.assoc = false; 2359 vif->cfg.aid = 0; 2360 changed |= BSS_CHANGED_ASSOC; 2361 IMPROVE(); 2362 2363 lkpi_update_mcast_filter_locked(lhw->ic); 2364 2365 /* 2366 * Executing the bss_info_changed(BSS_CHANGED_ASSOC) with 2367 * assoc = false right away here will remove the sta from 2368 * firmware for iwlwifi. 2369 * We no longer do this but only return the BSS_CHNAGED value. 2370 * The caller is responsible for removing the sta gong to 2371 * IEEE80211_STA_NOTEXIST and then executing the 2372 * bss_info_changed() update. 2373 * See DOWN4 for more detailed comment. 2374 */ 2375 2376 lvif = VIF_TO_LVIF(vif); 2377 lvif->beacons = 0; 2378 } 2379 2380 return (changed); 2381 } 2382 2383 static void 2384 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 2385 bool dequeue_seen, bool no_emptyq) 2386 { 2387 struct lkpi_txq *ltxq; 2388 int tid; 2389 bool ltxq_empty; 2390 2391 /* Wake up all queues to know they are allocated in the driver. */ 2392 for (tid = 0; tid < nitems(sta->txq); tid++) { 2393 2394 if (tid == IEEE80211_NUM_TIDS) { 2395 IMPROVE("station specific?"); 2396 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 2397 continue; 2398 } else if (tid >= hw->queues) 2399 continue; 2400 2401 if (sta->txq[tid] == NULL) 2402 continue; 2403 2404 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 2405 if (dequeue_seen && (ltxq->flags & LKPI_TXQ_SEEN_DEQUEUE) == 0) 2406 continue; 2407 2408 LKPI_80211_LTXQ_LOCK(ltxq); 2409 ltxq_empty = skb_queue_empty(<xq->skbq); 2410 LKPI_80211_LTXQ_UNLOCK(ltxq); 2411 if (no_emptyq && ltxq_empty) 2412 continue; 2413 2414 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid], false); 2415 } 2416 } 2417 2418 /* 2419 * On the way down from RUN -> ASSOC -> AUTH we may send a DISASSOC or DEAUTH 2420 * packet. The problem is that the state machine functions tend to hold the 2421 * LHW lock which will prevent lkpi_80211_txq_tx_one() from sending the packet. 2422 * We call this after dropping the ic lock and before acquiring the LHW lock. 2423 * we make sure no further packets are queued and if they are queued the task 2424 * will finish or be cancelled. At the end if a packet is left we manually 2425 * send it. scan_to_auth() would re-enable sending if the lsta would be 2426 * re-used. 2427 */ 2428 static void 2429 lkpi_80211_flush_tx(struct lkpi_hw *lhw, struct lkpi_sta *lsta) 2430 { 2431 struct ieee80211_hw *hw; 2432 struct mbufq mq; 2433 struct mbuf *m; 2434 int len; 2435 2436 /* There is no lockdep_assert_not_held_wiphy(). */ 2437 hw = LHW_TO_HW(lhw); 2438 lockdep_assert_not_held(&hw->wiphy->mtx); 2439 2440 /* Do not accept any new packets until scan_to_auth or lsta_free(). */ 2441 LKPI_80211_LSTA_TXQ_LOCK(lsta); 2442 lsta->txq_ready = false; 2443 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 2444 2445 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 2446 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 2447 2448 LKPI_80211_LSTA_TXQ_LOCK(lsta); 2449 len = mbufq_len(&lsta->txq); 2450 if (len <= 0) { 2451 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 2452 return; 2453 } 2454 2455 mbufq_init(&mq, IFQ_MAXLEN); 2456 mbufq_concat(&mq, &lsta->txq); 2457 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 2458 2459 m = mbufq_dequeue(&mq); 2460 while (m != NULL) { 2461 lkpi_80211_txq_tx_one(lsta, m); 2462 m = mbufq_dequeue(&mq); 2463 } 2464 } 2465 2466 static void 2467 lkpi_init_chandef(struct ieee80211com *ic __unused, 2468 struct cfg80211_chan_def *chandef, 2469 struct linuxkpi_ieee80211_channel *chan, struct ieee80211_channel *c, 2470 bool can_ht) 2471 { 2472 2473 cfg80211_chandef_create(chandef, chan, 2474 (can_ht) ? NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); 2475 chandef->center_freq1 = ieee80211_get_channel_center_freq1(c); 2476 chandef->center_freq2 = ieee80211_get_channel_center_freq2(c); 2477 2478 IMPROVE("Check ht/vht_cap from band not just chan? See lkpi_sta_sync_from_ni..."); 2479 #ifdef LKPI_80211_HT 2480 if (IEEE80211_IS_CHAN_HT(c)) { 2481 if (IEEE80211_IS_CHAN_HT40(c)) 2482 chandef->width = NL80211_CHAN_WIDTH_40; 2483 else 2484 chandef->width = NL80211_CHAN_WIDTH_20; 2485 } 2486 #endif 2487 #ifdef LKPI_80211_VHT 2488 if (IEEE80211_IS_CHAN_VHT_5GHZ(c)) { 2489 if (IEEE80211_IS_CHAN_VHT80P80(c)) 2490 chandef->width = NL80211_CHAN_WIDTH_80P80; 2491 else if (IEEE80211_IS_CHAN_VHT160(c)) 2492 chandef->width = NL80211_CHAN_WIDTH_160; 2493 else if (IEEE80211_IS_CHAN_VHT80(c)) 2494 chandef->width = NL80211_CHAN_WIDTH_80; 2495 } 2496 #endif 2497 2498 #ifdef LINUXKPI_DEBUG_80211 2499 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 2500 ic_printf(ic, "%s:%d: chandef %p { chan %p { %u }, " 2501 "width %d cfreq1 %u cfreq2 %u punctured %u }\n", 2502 __func__, __LINE__, chandef, 2503 chandef->chan, chandef->chan->center_freq, 2504 chandef->width, 2505 chandef->center_freq1, chandef->center_freq2, 2506 chandef->punctured); 2507 #endif 2508 } 2509 2510 static uint32_t 2511 lkpi_init_chanctx_conf(struct ieee80211_hw *hw, 2512 struct cfg80211_chan_def *chandef, 2513 struct ieee80211_chanctx_conf *chanctx_conf) 2514 { 2515 uint32_t changed; 2516 2517 lockdep_assert_wiphy(hw->wiphy); 2518 2519 changed = 0; 2520 2521 chanctx_conf->rx_chains_static = 1; 2522 chanctx_conf->rx_chains_dynamic = 1; 2523 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 2524 2525 if (chanctx_conf->radar_enabled != hw->conf.radar_enabled) { 2526 chanctx_conf->radar_enabled = hw->conf.radar_enabled; 2527 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 2528 } 2529 2530 chanctx_conf->def = *chandef; 2531 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 2532 2533 /* One day we should figure this out; is for iwlwifi-only. */ 2534 chanctx_conf->min_def = chanctx_conf->def; 2535 changed |= IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 2536 2537 /* chanctx_conf->ap = */ 2538 2539 return (changed); 2540 } 2541 2542 static struct lkpi_chanctx * 2543 lkpi_alloc_lchanctx(struct ieee80211_hw *hw, struct lkpi_vif *lvif) 2544 { 2545 struct lkpi_chanctx *lchanctx; 2546 2547 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 2548 M_LKPI80211, M_WAITOK | M_ZERO); 2549 lchanctx->lvif = lvif; 2550 2551 return (lchanctx); 2552 } 2553 2554 static struct lkpi_chanctx * 2555 lkpi_find_lchanctx_reserved(struct ieee80211_hw *hw, struct lkpi_vif *lvif) 2556 { 2557 struct lkpi_hw *lhw; 2558 struct lkpi_chanctx *lchanctx; 2559 bool found; 2560 2561 lhw = HW_TO_LHW(hw); 2562 2563 found = false; 2564 rcu_read_lock(); 2565 list_for_each_entry_rcu(lchanctx, &lhw->lchanctx_list_reserved, entry) { 2566 if (lchanctx->lvif == lvif) { 2567 found = true; 2568 break; 2569 } 2570 } 2571 rcu_read_unlock(); 2572 2573 if (!found) { 2574 lchanctx = lkpi_alloc_lchanctx(hw, lvif); 2575 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list_reserved); 2576 } 2577 2578 return (lchanctx); 2579 } 2580 2581 static struct ieee80211_chanctx_conf * 2582 lkpi_get_chanctx_conf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 2583 { 2584 struct ieee80211_chanctx_conf *chanctx_conf; 2585 2586 chanctx_conf = rcu_dereference_protected(vif->bss_conf.chanctx_conf, 2587 lockdep_is_held(&hw->wiphy->mtx)); 2588 if (chanctx_conf == NULL) { 2589 struct lkpi_chanctx *lchanctx; 2590 struct lkpi_vif *lvif; 2591 2592 lvif = VIF_TO_LVIF(vif); 2593 lchanctx = lkpi_find_lchanctx_reserved(hw, lvif); 2594 KASSERT(lchanctx != NULL, ("%s: hw %p, vif %p no lchanctx\n", 2595 __func__, hw, vif)); 2596 list_del(&lchanctx->entry); 2597 chanctx_conf = &lchanctx->chanctx_conf; 2598 } 2599 /* else { IMPROVE("diff changes for changed, working on live copy, rcu"); } */ 2600 2601 return (chanctx_conf); 2602 } 2603 2604 static int 2605 lkpi_set_chanctx_conf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 2606 struct ieee80211_chanctx_conf *chanctx_conf, 2607 uint32_t changed, bool changed_set) 2608 { 2609 struct lkpi_hw *lhw; 2610 struct lkpi_chanctx *lchanctx; 2611 int error; 2612 2613 lockdep_assert_wiphy(hw->wiphy); 2614 2615 if (vif->bss_conf.chanctx_conf == chanctx_conf) { 2616 if (!changed_set) { 2617 IMPROVE("OBSOLETE?"); 2618 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 2619 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 2620 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 2621 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 2622 } 2623 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 2624 2625 return (0); 2626 } 2627 2628 lhw = HW_TO_LHW(hw); 2629 2630 /* The device is no longer idle. */ 2631 IMPROVE("Once we do multi-vif, only do for 1st chanctx"); 2632 lkpi_hw_conf_idle(hw, false); 2633 2634 error = lkpi_80211_mo_add_chanctx(hw, chanctx_conf); 2635 if (error != 0 && error != EOPNOTSUPP) { 2636 ic_printf(lhw->ic, "%s:%d: mo_add_chanctx " 2637 "failed: %d\n", __func__, __LINE__, error); 2638 return (error); 2639 } 2640 2641 vif->bss_conf.chanreq.oper.chan = chanctx_conf->def.chan; 2642 vif->bss_conf.chanreq.oper.width = chanctx_conf->def.width; 2643 vif->bss_conf.chanreq.oper.center_freq1 = 2644 chanctx_conf->def.center_freq1; 2645 vif->bss_conf.chanreq.oper.center_freq2 = 2646 chanctx_conf->def.center_freq2; 2647 2648 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2649 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list); 2650 rcu_assign_pointer(vif->bss_conf.chanctx_conf, chanctx_conf); 2651 2652 /* Assign vif chanctx. */ 2653 if (error == 0) 2654 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 2655 &vif->bss_conf, chanctx_conf); 2656 if (error == EOPNOTSUPP) 2657 error = 0; 2658 if (error != 0) { 2659 ic_printf(lhw->ic, "%s:%d: mo_assign_vif_chanctx " 2660 "failed: %d\n", __func__, __LINE__, error); 2661 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2662 rcu_assign_pointer(vif->bss_conf.chanctx_conf, NULL); 2663 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2664 list_del(&lchanctx->entry); 2665 memset(lchanctx, 0, sizeof(*lchanctx)); 2666 lchanctx->lvif = VIF_TO_LVIF(vif); 2667 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list_reserved); 2668 } 2669 2670 return (error); 2671 } 2672 2673 static void 2674 lkpi_remove_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 2675 { 2676 struct lkpi_hw *lhw; 2677 struct ieee80211_chanctx_conf *chanctx_conf; 2678 struct lkpi_chanctx *lchanctx; 2679 2680 lockdep_assert_wiphy(hw->wiphy); 2681 2682 chanctx_conf = rcu_dereference_protected(vif->bss_conf.chanctx_conf, 2683 lockdep_is_held(&hw->wiphy->mtx)); 2684 2685 if (chanctx_conf == NULL) 2686 return; 2687 2688 /* Remove vif context. */ 2689 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, chanctx_conf); 2690 2691 lkpi_hw_conf_idle(hw, true); 2692 2693 /* Remove chan ctx. */ 2694 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2695 2696 /* Cleanup. */ 2697 rcu_assign_pointer(vif->bss_conf.chanctx_conf, NULL); 2698 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2699 list_del(&lchanctx->entry); 2700 lhw = HW_TO_LHW(hw); 2701 memset(lchanctx, 0, sizeof(*lchanctx)); 2702 lchanctx->lvif = VIF_TO_LVIF(vif); 2703 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list_reserved); 2704 } 2705 2706 /* -------------------------------------------------------------------------- */ 2707 2708 /* Any other options belong here? Check more drivers. */ 2709 #define BSS_CHANGED_VIF_CFG_BITS \ 2710 (BSS_CHANGED_SSID | BSS_CHANGED_IDLE | BSS_CHANGED_PS | BSS_CHANGED_ASSOC | \ 2711 BSS_CHANGED_ARP_FILTER | BSS_CHANGED_MLD_VALID_LINKS | BSS_CHANGED_MLD_TTLM) 2712 2713 static void 2714 lkpi_bss_info_change(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 2715 enum ieee80211_bss_changed bss_changed) 2716 { 2717 struct lkpi_vif *lvif; 2718 enum ieee80211_bss_changed vif_cfg_bits, link_info_bits; 2719 2720 if (ieee80211_vif_is_mld(vif)) { 2721 TODO("This likely needs a subset only; split up into 3 parts."); 2722 } 2723 2724 /* Nothing to do? */ 2725 if (bss_changed == 0) 2726 return; 2727 2728 /* 2729 * If the vif is not known to the driver there is nothing to notifiy for. 2730 * We MUST NOT check for !lvif_bss_synched here (the reasonable it seems) 2731 * as we need to execute the update(s) or we will have follow-up issues. 2732 */ 2733 lvif = VIF_TO_LVIF(vif); 2734 if (!lvif->added_to_drv) 2735 return; 2736 2737 /* 2738 * With the advent of MLO bss_conf got split up into vif and link 2739 * change notfications, while historically it was one. 2740 * We now need to support all possible models. 2741 */ 2742 vif_cfg_bits = bss_changed & BSS_CHANGED_VIF_CFG_BITS; 2743 if (vif_cfg_bits != 0) 2744 lkpi_80211_mo_vif_cfg_changed(hw, vif, vif_cfg_bits, false); 2745 2746 link_info_bits = bss_changed & ~(BSS_CHANGED_VIF_CFG_BITS); 2747 if (link_info_bits != 0) 2748 lkpi_80211_mo_link_info_changed(hw, vif, &vif->bss_conf, 2749 link_info_bits, 0, false); 2750 2751 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2752 } 2753 2754 /* -------------------------------------------------------------------------- */ 2755 2756 static int 2757 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2758 { 2759 return (0); 2760 } 2761 2762 /* UP1 */ 2763 static int 2764 lkpi_sta_init_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2765 { 2766 return (lkpi_sta_state_do_nada(vap, nstate, arg)); 2767 } 2768 2769 /* UP2 */ 2770 static int 2771 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2772 { 2773 struct linuxkpi_ieee80211_channel *chan; 2774 struct cfg80211_chan_def chandef; 2775 struct ieee80211_chanctx_conf *chanctx_conf; 2776 struct lkpi_hw *lhw; 2777 struct ieee80211_hw *hw; 2778 struct lkpi_vif *lvif; 2779 struct ieee80211_vif *vif; 2780 struct ieee80211_node *ni; 2781 struct lkpi_sta *lsta; 2782 enum ieee80211_bss_changed bss_changed; 2783 struct ieee80211_prep_tx_info prep_tx_info; 2784 uint32_t changed; 2785 int error; 2786 bool synched, can_ht; 2787 2788 /* 2789 * In here we use vap->iv_bss until lvif->lvif_bss is set. 2790 * For all later (STATE >= AUTH) functions we need to use the lvif 2791 * cache which will be tracked even through (*iv_update_bss)(). 2792 */ 2793 2794 if (vap->iv_bss == NULL) { 2795 ic_printf(vap->iv_ic, "%s: no iv_bss for vap %p\n", __func__, vap); 2796 return (EINVAL); 2797 } 2798 /* 2799 * Keep the ni alive locally. In theory (and practice) iv_bss can change 2800 * once we unlock here. This is due to net80211 allowing state changes 2801 * and new join1() despite having an active node as well as due to 2802 * the fact that the iv_bss can be swapped under the hood in (*iv_update_bss). 2803 */ 2804 ni = ieee80211_ref_node(vap->iv_bss); 2805 if (ni->ni_chan == NULL || ni->ni_chan == IEEE80211_CHAN_ANYC) { 2806 ic_printf(vap->iv_ic, "%s: no channel set for iv_bss ni %p " 2807 "on vap %p\n", __func__, ni, vap); 2808 ieee80211_free_node(ni); /* Error handling for the local ni. */ 2809 return (EINVAL); 2810 } 2811 2812 lhw = vap->iv_ic->ic_softc; 2813 chan = lkpi_find_lkpi80211_chan(lhw, ni->ni_chan); 2814 if (chan == NULL) { 2815 ic_printf(vap->iv_ic, "%s: failed to get LKPI channel from " 2816 "iv_bss ni %p on vap %p\n", __func__, ni, vap); 2817 ieee80211_free_node(ni); /* Error handling for the local ni. */ 2818 return (ESRCH); 2819 } 2820 2821 hw = LHW_TO_HW(lhw); 2822 lvif = VAP_TO_LVIF(vap); 2823 vif = LVIF_TO_VIF(lvif); 2824 2825 LKPI_80211_LVIF_LOCK(lvif); 2826 /* XXX-BZ KASSERT later? */ 2827 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) { 2828 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2829 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2830 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2831 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2832 lvif->lvif_bss_synched); 2833 LKPI_80211_LVIF_UNLOCK(lvif); 2834 ieee80211_free_node(ni); /* Error handling for the local ni. */ 2835 return (EBUSY); 2836 } 2837 LKPI_80211_LVIF_UNLOCK(lvif); 2838 2839 IEEE80211_UNLOCK(vap->iv_ic); 2840 wiphy_lock(hw->wiphy); 2841 2842 /* Add chanctx (or if exists, change it). */ 2843 chanctx_conf = lkpi_get_chanctx_conf(hw, vif); 2844 2845 KASSERT(ni->ni_chan != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC, 2846 ("%s:%d: ni %p ni_chan %p\n", __func__, __LINE__, ni, ni->ni_chan)); 2847 2848 #ifdef LKPI_80211_HT 2849 can_ht = (vap->iv_ic->ic_flags_ht & IEEE80211_FHT_HT) != 0; 2850 #else 2851 can_ht = false; 2852 #endif 2853 lkpi_init_chandef(vap->iv_ic, &chandef, chan, ni->ni_chan, can_ht); 2854 hw->conf.radar_enabled = 2855 ((chan->flags & IEEE80211_CHAN_RADAR) != 0) ? true : false; 2856 hw->conf.chandef = chandef; 2857 vif->bss_conf.chanreq.oper = hw->conf.chandef; 2858 #ifdef LINUXKPI_DEBUG_80211 2859 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 2860 ic_printf(vap->iv_ic, "%s:%d: hw->conf.chandef %p = chandef %p = " 2861 "vif->bss_conf.chanreq.oper %p\n", __func__, __LINE__, 2862 &hw->conf.chandef, &chandef, &vif->bss_conf.chanreq.oper); 2863 #endif 2864 2865 changed = lkpi_init_chanctx_conf(hw, &chandef, chanctx_conf); 2866 2867 /* Responder ... */ 2868 2869 /* Set bss info (bss_info_changed). */ 2870 bss_changed = 0; 2871 IEEE80211_ADDR_COPY(vif->cfg.ap_addr, ni->ni_bssid); 2872 vif->bss_conf.bssid = ni->ni_bssid; 2873 bss_changed |= BSS_CHANGED_BSSID; 2874 vif->bss_conf.txpower = ni->ni_txpower; 2875 bss_changed |= BSS_CHANGED_TXPOWER; 2876 vif->cfg.idle = false; 2877 bss_changed |= BSS_CHANGED_IDLE; 2878 2879 lvif->beacons = 0; 2880 /* Should almost assert it is this. */ 2881 vif->cfg.assoc = false; 2882 vif->cfg.aid = 0; 2883 2884 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2885 2886 error = lkpi_set_chanctx_conf(hw, vif, chanctx_conf, changed, true); 2887 if (error != 0) 2888 goto out; 2889 2890 IMPROVE("update radiotap chan fields too"); 2891 2892 /* RATES */ 2893 IMPROVE("bss info: not all needs to come now and rates are missing"); 2894 bss_changed |= lkpi_sta_supp_rates(hw, vif, ni, NULL); 2895 if (ieee80211_hw_check(hw, HAS_RATE_CONTROL)) 2896 lkpi_80211_mo_set_bitrate_mask(hw, vif, &lvif->br_mask); 2897 TODO("cfg80211_tid_config WHERE?"); 2898 2899 lkpi_bss_info_change(hw, vif, bss_changed); 2900 2901 /* 2902 * Given ni and lsta are 1:1 from alloc to free we can assert that 2903 * ni always has lsta data attach despite net80211 node swapping 2904 * under the hoods. 2905 */ 2906 KASSERT(ni->ni_drv_data != NULL, ("%s: ni %p ni_drv_data %p\n", 2907 __func__, ni, ni->ni_drv_data)); 2908 lsta = ni->ni_drv_data; 2909 2910 /* Insert the [l]sta into the list of known stations. */ 2911 list_add_tail(&lsta->lsta_list, &lvif->lsta_list); 2912 2913 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 2914 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2915 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 2916 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 2917 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2918 if (error != 0) { 2919 IMPROVE("do we need to undo the chan ctx?"); 2920 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2921 "failed: %d\n", __func__, __LINE__, error); 2922 goto out; 2923 } 2924 #if 0 2925 lsta->added_to_drv = true; /* mo manages. */ 2926 #endif 2927 2928 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2929 2930 #if 0 2931 /* 2932 * Wakeup all queues now that sta is there so we have as much time to 2933 * possibly prepare the queue in the driver to be ready for the 1st 2934 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 2935 * is no guarantee or way to check. 2936 * XXX-BZ and by now we know that this does not work on all drivers 2937 * for all queues. 2938 */ 2939 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 2940 #endif 2941 2942 /* Start mgd_prepare_tx. */ 2943 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2944 prep_tx_info.duration = PREP_TX_INFO_DURATION; /* SAE */ 2945 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 2946 prep_tx_info.link_id = 0; 2947 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2948 lsta->in_mgd = true; 2949 2950 /* 2951 * What is going to happen next: 2952 * - <twiddle> .. we should end up in "auth_to_assoc" 2953 * - event_callback 2954 * - update sta_state (NONE to AUTH) 2955 * - mgd_complete_tx 2956 * (ideally we'd do that on a callback for something else ...) 2957 */ 2958 2959 wiphy_unlock(hw->wiphy); 2960 IEEE80211_LOCK(vap->iv_ic); 2961 2962 LKPI_80211_LVIF_LOCK(lvif); 2963 /* Re-check given (*iv_update_bss) could have happened while we were unlocked. */ 2964 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL || 2965 lsta->ni != vap->iv_bss) 2966 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2967 "lvif_bss->ni %p synched %d, ni %p lsta %p\n", __func__, __LINE__, 2968 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2969 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2970 lvif->lvif_bss_synched, ni, lsta); 2971 2972 /* 2973 * Reference the "ni" for caching the lsta/ni in lvif->lvif_bss. 2974 * Given we cache lsta we use lsta->ni instead of ni here (even though 2975 * lsta->ni == ni) to be distinct from the rest of the code where we do 2976 * assume that ni == vap->iv_bss which it may or may not be. 2977 * So do NOT use iv_bss here anymore as that may have diverged from our 2978 * function local ni already while ic was unlocked and would lead to 2979 * inconsistencies. Go and see if we lost a race and do not update 2980 * lvif_bss_synched in that case. 2981 */ 2982 ieee80211_ref_node(lsta->ni); 2983 lvif->lvif_bss = lsta; 2984 if (lsta->ni == vap->iv_bss) { 2985 lvif->lvif_bss_synched = synched = true; 2986 } else { 2987 /* Set to un-synched no matter what. */ 2988 lvif->lvif_bss_synched = synched = false; 2989 /* 2990 * We do not error as someone has to take us down. 2991 * If we are followed by a 2nd, new net80211::join1() going to 2992 * AUTH lkpi_sta_a_to_a() will error, lkpi_sta_auth_to_{scan,init}() 2993 * will take the lvif->lvif_bss node down eventually. 2994 * What happens with the vap->iv_bss node will entirely be up 2995 * to net80211 as we never used the node beyond alloc()/free() 2996 * and we do not hold an extra reference for that anymore given 2997 * ni : lsta == 1:1. 2998 * Problem is if we do not error a MGMT/AUTH frame will be 2999 * sent from net80211::sta_newstate(); disable lsta queue below. 3000 */ 3001 } 3002 LKPI_80211_LVIF_UNLOCK(lvif); 3003 /* 3004 * Make sure in case the sta did not change and we re-added it, 3005 * that we can tx again but only if the vif/iv_bss are in sync. 3006 * Otherwise this should prevent the MGMT/AUTH frame from being 3007 * sent triggering a warning in iwlwifi. 3008 */ 3009 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3010 lsta->txq_ready = synched; 3011 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3012 goto out_relocked; 3013 3014 out: 3015 wiphy_unlock(hw->wiphy); 3016 IEEE80211_LOCK(vap->iv_ic); 3017 out_relocked: 3018 /* 3019 * Release the reference that kept the ni stable locally 3020 * during the work of this function. 3021 */ 3022 if (ni != NULL) 3023 ieee80211_free_node(ni); 3024 return (error); 3025 } 3026 3027 /* UP3.1 */ 3028 static int 3029 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3030 { 3031 struct lkpi_hw *lhw; 3032 struct ieee80211_hw *hw; 3033 struct lkpi_vif *lvif; 3034 struct ieee80211_vif *vif; 3035 struct lkpi_sta *lsta; 3036 struct ieee80211_prep_tx_info prep_tx_info; 3037 int error; 3038 3039 lhw = vap->iv_ic->ic_softc; 3040 hw = LHW_TO_HW(lhw); 3041 lvif = VAP_TO_LVIF(vap); 3042 vif = LVIF_TO_VIF(lvif); 3043 3044 IEEE80211_UNLOCK(vap->iv_ic); 3045 wiphy_lock(hw->wiphy); 3046 3047 LKPI_80211_LVIF_LOCK(lvif); 3048 /* XXX-BZ KASSERT later? */ 3049 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 3050 #ifdef LINUXKPI_DEBUG_80211 3051 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3052 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3053 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3054 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3055 lvif->lvif_bss_synched); 3056 #endif 3057 error = ENOTRECOVERABLE; 3058 LKPI_80211_LVIF_UNLOCK(lvif); 3059 goto out; 3060 } 3061 lsta = lvif->lvif_bss; 3062 LKPI_80211_LVIF_UNLOCK(lvif); 3063 3064 KASSERT(lsta != NULL, ("%s: lsta %p\n", __func__, lsta)); 3065 3066 /* Finish auth. */ 3067 IMPROVE("event callback"); 3068 3069 /* Update sta_state (NONE to AUTH). */ 3070 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 3071 "NONE: %#x\n", __func__, lsta, lsta->state)); 3072 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 3073 if (error != 0) { 3074 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 3075 "failed: %d\n", __func__, __LINE__, error); 3076 goto out; 3077 } 3078 3079 /* End mgd_complete_tx. */ 3080 if (lsta->in_mgd) { 3081 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3082 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3083 prep_tx_info.success = true; 3084 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3085 lsta->in_mgd = false; 3086 } 3087 3088 /* Now start assoc. unless nstate=RUN (auth_to_run). */ 3089 3090 /* Start mgd_prepare_tx. */ 3091 if (nstate == IEEE80211_S_ASSOC && !lsta->in_mgd) { 3092 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3093 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3094 prep_tx_info.link_id = 0; 3095 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 3096 lsta->in_mgd = true; 3097 } 3098 3099 #if 0 3100 /* We do not yet have a packet to go out. */ 3101 /* Wake tx queue to get packet out. */ 3102 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, true); 3103 #endif 3104 3105 /* 3106 * <twiddle> .. we end up in "assoc_to_run" 3107 * - update sta_state (AUTH to ASSOC) 3108 * - conf_tx [all] 3109 * - bss_info_changed (assoc, aid, ssid, ..) 3110 * - change_chanctx (if needed) 3111 * - event_callback 3112 * - mgd_complete_tx 3113 */ 3114 3115 out: 3116 wiphy_unlock(hw->wiphy); 3117 IEEE80211_LOCK(vap->iv_ic); 3118 return (error); 3119 } 3120 3121 static int lkpi_sta_assoc_to_run(struct ieee80211vap *, enum ieee80211_state, int); 3122 3123 /* UP3.2 */ 3124 static int 3125 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3126 { 3127 int error; 3128 3129 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 3130 if (error == 0) 3131 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 3132 return (error); 3133 } 3134 3135 /* UP4 */ 3136 static int 3137 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3138 { 3139 struct lkpi_hw *lhw; 3140 struct ieee80211_hw *hw; 3141 struct lkpi_vif *lvif; 3142 struct ieee80211_vif *vif; 3143 struct ieee80211_node *ni; 3144 struct lkpi_sta *lsta; 3145 struct ieee80211_sta *sta; 3146 struct ieee80211_prep_tx_info prep_tx_info; 3147 enum ieee80211_bss_changed bss_changed; 3148 int error; 3149 3150 lhw = vap->iv_ic->ic_softc; 3151 hw = LHW_TO_HW(lhw); 3152 lvif = VAP_TO_LVIF(vap); 3153 vif = LVIF_TO_VIF(lvif); 3154 3155 IEEE80211_UNLOCK(vap->iv_ic); 3156 wiphy_lock(hw->wiphy); 3157 3158 LKPI_80211_LVIF_LOCK(lvif); 3159 /* XXX-BZ KASSERT later? */ 3160 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 3161 #ifdef LINUXKPI_DEBUG_80211 3162 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3163 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3164 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3165 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3166 lvif->lvif_bss_synched); 3167 #endif 3168 LKPI_80211_LVIF_UNLOCK(lvif); 3169 error = ENOTRECOVERABLE; 3170 goto out; 3171 } 3172 lsta = lvif->lvif_bss; 3173 LKPI_80211_LVIF_UNLOCK(lvif); 3174 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3175 "lvif %p vap %p\n", __func__, 3176 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3177 3178 ni = lsta->ni; /* Reference held for lvif_bss. */ 3179 3180 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 3181 "and to lesser extend ieee80211_notify_node_join"); 3182 3183 /* Finish assoc. */ 3184 /* Update sta_state (AUTH to ASSOC) and set aid. */ 3185 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 3186 "AUTH: %#x\n", __func__, lsta, lsta->state)); 3187 sta = LSTA_TO_STA(lsta); 3188 sta->aid = IEEE80211_NODE_AID(ni); 3189 #ifdef LKPI_80211_WME 3190 if (vap->iv_flags & IEEE80211_F_WME) 3191 sta->wme = true; 3192 #endif 3193 bss_changed = 0; 3194 /* 3195 * This sync needs to happen before the sta_state change to ASSOC. 3196 * At least mt7921 (likely all drivers) rely on, e.g., ht_cap, vht_cap, 3197 * .. to be set at the point we go to assoc. 3198 */ 3199 bss_changed |= lkpi_sta_sync_from_ni(hw, vif, sta, ni, true); 3200 if (ieee80211_hw_check(hw, HAS_RATE_CONTROL)) 3201 lkpi_80211_mo_set_bitrate_mask(hw, vif, &lvif->br_mask); 3202 3203 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 3204 if (error != 0) { 3205 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 3206 "failed: %d\n", __func__, __LINE__, error); 3207 goto out; 3208 } 3209 3210 IMPROVE("wme / conf_tx [all]"); 3211 3212 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 3213 #ifdef LKPI_80211_WME 3214 bss_changed |= lkpi_wme_update(lhw, vap, true); 3215 #endif 3216 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 3217 lvif->beacons = 0; 3218 vif->cfg.assoc = true; 3219 vif->cfg.aid = IEEE80211_NODE_AID(ni); 3220 bss_changed |= BSS_CHANGED_ASSOC; 3221 } 3222 /* We set SSID but this is not BSSID! */ 3223 vif->cfg.ssid_len = ni->ni_esslen; 3224 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 3225 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 3226 vif->bss_conf.use_short_preamble) { 3227 vif->bss_conf.use_short_preamble ^= 1; 3228 /* bss_changed |= BSS_CHANGED_??? */ 3229 } 3230 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 3231 vif->bss_conf.use_short_slot) { 3232 vif->bss_conf.use_short_slot ^= 1; 3233 /* bss_changed |= BSS_CHANGED_??? */ 3234 } 3235 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 3236 vif->bss_conf.qos) { 3237 vif->bss_conf.qos ^= 1; 3238 bss_changed |= BSS_CHANGED_QOS; 3239 } 3240 3241 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 3242 lkpi_bss_info_change(hw, vif, bss_changed); 3243 3244 /* - change_chanctx (if needed) 3245 * - event_callback 3246 */ 3247 3248 /* End mgd_complete_tx. (we do not have to check ostate == IEEE80211_S_ASSOC). */ 3249 if (lsta->in_mgd) { 3250 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3251 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3252 prep_tx_info.success = true; /* Needs vif->cfg.assoc set! */ 3253 prep_tx_info.link_id = 0; 3254 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3255 lsta->in_mgd = false; 3256 } 3257 3258 /* 3259 * And then: 3260 * - (more packets)? 3261 * - set_key 3262 * - set_default_unicast_key 3263 * - set_key (?) 3264 * - ipv6_addr_change (?) 3265 */ 3266 3267 if (!ieee80211_node_is_authorized(ni)) { 3268 IMPROVE("net80211 does not consider node authorized"); 3269 } 3270 3271 bss_changed = 0; 3272 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 3273 3274 /* Update thresholds. */ 3275 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 3276 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 3277 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 3278 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 3279 3280 /* Update sta_state (ASSOC to AUTHORIZED). */ 3281 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3282 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 3283 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 3284 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 3285 if (error != 0) { 3286 IMPROVE("undo some changes?"); 3287 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 3288 "failed: %d\n", __func__, __LINE__, error); 3289 goto out; 3290 } 3291 3292 /* - drv_config (?) 3293 * - bss_info_changed 3294 * - set_rekey_data (?) 3295 * 3296 * And now we should be passing packets. 3297 */ 3298 IMPROVE("Need that bssid setting, and the keys"); 3299 3300 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 3301 lkpi_bss_info_change(hw, vif, bss_changed); 3302 3303 /* Prepare_multicast && configure_filter. */ 3304 lkpi_update_mcast_filter_locked(vap->iv_ic); 3305 3306 out: 3307 wiphy_unlock(hw->wiphy); 3308 IEEE80211_LOCK(vap->iv_ic); 3309 return (error); 3310 } 3311 3312 /* 3313 * DOWN1 3314 * "to assoc" means we are going back to State 2 from State 4[/3]. 3315 * This means ni still is authenticated, so we keep sta, chanctx, .. 3316 * We will send a (Re)Assoc Request in case net80211 handles roadming. 3317 * Note: this can be called as part of a DEAUTH going to State 1 as well, 3318 * so for RoC prep_tx_info we need to check nstate (see run_to_{auth,scan,init}). 3319 */ 3320 static int 3321 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3322 { 3323 struct lkpi_hw *lhw; 3324 struct ieee80211_hw *hw; 3325 struct lkpi_vif *lvif; 3326 struct ieee80211_vif *vif; 3327 struct ieee80211_node *ni; 3328 struct lkpi_sta *lsta; 3329 struct ieee80211_sta *sta; 3330 struct ieee80211_prep_tx_info prep_tx_info; 3331 #if 0 3332 enum ieee80211_bss_changed bss_changed; 3333 #endif 3334 struct ieee80211_rx_ampdu *rap; 3335 int error; 3336 3337 lhw = vap->iv_ic->ic_softc; 3338 hw = LHW_TO_HW(lhw); 3339 lvif = VAP_TO_LVIF(vap); 3340 vif = LVIF_TO_VIF(lvif); 3341 3342 IEEE80211_UNLOCK(vap->iv_ic); 3343 wiphy_lock(hw->wiphy); 3344 3345 LKPI_80211_LVIF_LOCK(lvif); 3346 #ifdef LINUXKPI_DEBUG_80211 3347 /* XXX-BZ KASSERT later; state going down so no action. */ 3348 if (lvif->lvif_bss == NULL) 3349 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3350 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3351 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3352 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3353 lvif->lvif_bss_synched); 3354 #endif 3355 lsta = lvif->lvif_bss; 3356 LKPI_80211_LVIF_UNLOCK(lvif); 3357 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3358 "lvif %p vap %p\n", __func__, 3359 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3360 3361 ni = lsta->ni; /* Reference held for lvif_bss. */ 3362 sta = LSTA_TO_STA(lsta); 3363 3364 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3365 3366 /* flush, drop. */ 3367 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 3368 3369 /* We should make this a KASSERT. */ 3370 if (lsta->in_mgd) { 3371 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p lsta %p in_mgd\n", 3372 __func__, __LINE__, lvif, vap, lsta); 3373 } 3374 /* 3375 * Problem is that we should hook into the tx/rx flow and not 3376 * try to re-model the state machine parts. We may miss a SME 3377 * triggered frame this way. 3378 */ 3379 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3380 if (nstate == IEEE80211_S_ASSOC) { 3381 if (vap->iv_roaming == IEEE80211_ROAMING_AUTO) { 3382 if (arg) 3383 prep_tx_info.subtype = IEEE80211_STYPE_REASSOC_REQ; 3384 else 3385 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3386 } else { 3387 /* wpa_supplicant upon RTM_IEEE80211_LEAVE. */ 3388 prep_tx_info.subtype = IEEE80211_STYPE_DISASSOC; 3389 } 3390 } else 3391 prep_tx_info.subtype = IEEE80211_STYPE_DEAUTH; 3392 prep_tx_info.was_assoc = true; 3393 prep_tx_info.link_id = 0; 3394 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 3395 lsta->in_mgd = true; 3396 3397 wiphy_unlock(hw->wiphy); 3398 IEEE80211_LOCK(vap->iv_ic); 3399 3400 /* Call iv_newstate first so we get potential (RE-)ASSOC/DEAUTH? packet out. */ 3401 error = lvif->iv_newstate(vap, nstate, arg); 3402 if (error != 0) { 3403 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 3404 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 3405 goto outni; 3406 } 3407 3408 /* Stop any BA sessions if still active. */ 3409 for (int rapn = 0; rapn < WME_NUM_TID; rapn++) { 3410 rap = &ni->ni_rx_ampdu[rapn]; 3411 3412 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 3413 continue; 3414 3415 vap->iv_ic->ic_ampdu_rx_stop(ni, rap); 3416 } 3417 3418 IEEE80211_UNLOCK(vap->iv_ic); 3419 3420 /* Ensure the packets get out. */ 3421 lkpi_80211_flush_tx(lhw, lsta); 3422 3423 wiphy_lock(hw->wiphy); 3424 3425 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3426 3427 /* Wake tx queues to get packet(s) out. */ 3428 lkpi_wake_tx_queues(hw, sta, false, true); 3429 3430 /* flush, no drop */ 3431 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 3432 3433 /* End mgd_complete_tx. */ 3434 /* We should make this a KASSERT. */ 3435 if (!lsta->in_mgd) { 3436 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p lsta %p !in_mgd\n", 3437 __func__, __LINE__, lvif, vap, lsta); 3438 } 3439 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3440 lsta->in_mgd = false; 3441 3442 #if 0 3443 /* sync_rx_queues */ 3444 lkpi_80211_mo_sync_rx_queues(hw); 3445 3446 /* sta_pre_rcu_remove */ 3447 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 3448 #endif 3449 3450 /* Take the station down. */ 3451 3452 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 3453 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3454 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 3455 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 3456 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 3457 if (error != 0) { 3458 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 3459 "failed: %d\n", __func__, __LINE__, error); 3460 goto out; 3461 } 3462 3463 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3464 3465 #ifdef LKPI_80211_HW_CRYPTO 3466 if (lkpi_hwcrypto) { 3467 error = lkpi_sta_del_keys(hw, vif, lsta); 3468 if (error != 0) { 3469 ic_printf(vap->iv_ic, "%s:%d: lkpi_sta_del_keys " 3470 "failed: %d\n", __func__, __LINE__, error); 3471 /* 3472 * Either drv/fw will crash or cleanup itself, 3473 * otherwise net80211 will delete the keys (at a 3474 * less appropriate time). 3475 */ 3476 /* goto out; */ 3477 } 3478 } 3479 #endif 3480 3481 /* Update sta_state (ASSOC to AUTH). */ 3482 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3483 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 3484 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 3485 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 3486 if (error != 0) { 3487 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 3488 "failed: %d\n", __func__, __LINE__, error); 3489 goto out; 3490 } 3491 3492 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3493 3494 #if 0 3495 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 3496 /* See comment in DOWN4. */ 3497 lkpi_disassoc(sta, vif, lhw); 3498 #endif 3499 3500 error = EALREADY; 3501 out: 3502 wiphy_unlock(hw->wiphy); 3503 IEEE80211_LOCK(vap->iv_ic); 3504 outni: 3505 return (error); 3506 } 3507 3508 /* 3509 * DOWN2 3510 * We are in state 2 and go back to state 1 and will try to auth again 3511 * (to IEEE80211_S_AUTH in FreeBSD means "try to auth"). This should be 3512 * like scan_to_auth but that we keep the "ni" and with that chanctx/bssid, 3513 * which essentially makes this "a_to_a" in LinuxKPI. 3514 */ 3515 static int 3516 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3517 { 3518 struct lkpi_hw *lhw; 3519 struct ieee80211_hw *hw; 3520 struct lkpi_vif *lvif; 3521 struct ieee80211_vif *vif; 3522 struct ieee80211_node *ni; 3523 struct lkpi_sta *lsta; 3524 struct ieee80211_prep_tx_info prep_tx_info; 3525 int error; 3526 3527 lhw = vap->iv_ic->ic_softc; 3528 hw = LHW_TO_HW(lhw); 3529 lvif = VAP_TO_LVIF(vap); 3530 vif = LVIF_TO_VIF(lvif); 3531 3532 IEEE80211_UNLOCK(vap->iv_ic); 3533 wiphy_lock(hw->wiphy); 3534 3535 LKPI_80211_LVIF_LOCK(lvif); 3536 #ifdef LINUXKPI_DEBUG_80211 3537 /* XXX-BZ KASSERT later; state going down so no action. */ 3538 if (lvif->lvif_bss == NULL) 3539 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3540 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3541 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3542 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3543 lvif->lvif_bss_synched); 3544 #endif 3545 lsta = lvif->lvif_bss; 3546 LKPI_80211_LVIF_UNLOCK(lvif); 3547 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3548 "lvif %p vap %p\n", __func__, 3549 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3550 3551 ni = lsta->ni; /* Reference held for lvif_bss. */ 3552 3553 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3554 3555 /* End mgd_complete_tx. */ 3556 if (lsta->in_mgd && vap->iv_state == IEEE80211_S_ASSOC) { 3557 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3558 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3559 prep_tx_info.link_id = 0; 3560 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3561 lsta->in_mgd = false; 3562 } else if (lsta->in_mgd) { 3563 ic_printf(vap->iv_ic, "%s:%d: in_mgd %d (%s) -> %d (%s) %d\n", 3564 __func__, __LINE__, 3565 vap->iv_state, ieee80211_state_name[vap->iv_state], 3566 nstate, ieee80211_state_name[nstate], arg); 3567 } 3568 3569 /* Take the station down. */ 3570 /* Update sta_state (AUTH to NONE). */ 3571 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3572 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 3573 "AUTH: %#x\n", __func__, lsta, lsta->state)); 3574 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 3575 if (error != 0) { 3576 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 3577 "failed: %d\n", __func__, __LINE__, error); 3578 goto out; 3579 } 3580 3581 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3582 3583 out: 3584 wiphy_unlock(hw->wiphy); 3585 IEEE80211_LOCK(vap->iv_ic); 3586 return (error); 3587 } 3588 3589 /* 3590 * DOWN3 3591 * We are in state 1. Either auth timed out (arg != 0) or we have an internal 3592 * state change forcing us to give up trying to authenticate. 3593 * Cleanup and remove chanctx, sta, ... 3594 */ 3595 static int 3596 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3597 { 3598 struct lkpi_hw *lhw; 3599 struct ieee80211_hw *hw; 3600 struct lkpi_vif *lvif; 3601 struct ieee80211_vif *vif; 3602 struct ieee80211_node *ni; 3603 struct lkpi_sta *lsta; 3604 struct ieee80211_sta *sta; 3605 struct ieee80211_prep_tx_info prep_tx_info; 3606 enum ieee80211_bss_changed bss_changed; 3607 int error; 3608 3609 lhw = vap->iv_ic->ic_softc; 3610 hw = LHW_TO_HW(lhw); 3611 lvif = VAP_TO_LVIF(vap); 3612 vif = LVIF_TO_VIF(lvif); 3613 3614 IEEE80211_UNLOCK(vap->iv_ic); 3615 wiphy_lock(hw->wiphy); 3616 3617 LKPI_80211_LVIF_LOCK(lvif); 3618 /* 3619 * XXX-BZ KASSERT later; state going down so no action in theory 3620 * but try to avoid a NULL-pointer derref for now and gracefully 3621 * fail for non-debug kernels. 3622 */ 3623 if (lvif->lvif_bss == NULL) { 3624 ic_printf(vap->iv_ic, "%s:%d: ERROR: lvif %p vap %p iv_bss %p " 3625 "lvif_bss %p lvif_bss->ni %p synched %d; " 3626 "expect follow-up problems\n", __func__, __LINE__, 3627 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3628 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3629 lvif->lvif_bss_synched); 3630 LKPI_80211_LVIF_UNLOCK(lvif); 3631 /* 3632 * This will likely lead to a firmware crash (if there 3633 * was not one before already) and need a 3634 * ieee80211_restart_hw() but still better than a panic 3635 * for users as they can at least recover. 3636 */ 3637 error = ENOTRECOVERABLE; 3638 goto out; 3639 } 3640 lsta = lvif->lvif_bss; 3641 LKPI_80211_LVIF_UNLOCK(lvif); 3642 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3643 "lvif %p vap %p\n", __func__, 3644 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3645 ni = lsta->ni; /* Reference held for lvif_bss. */ 3646 sta = LSTA_TO_STA(lsta); 3647 3648 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3649 3650 /* flush, drop. */ 3651 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 3652 3653 /* Wake tx queues to get packet(s) out. */ 3654 lkpi_wake_tx_queues(hw, sta, false, true); 3655 3656 /* flush, no drop */ 3657 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 3658 3659 /* End mgd_complete_tx. */ 3660 if (lsta->in_mgd) { 3661 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3662 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3663 prep_tx_info.link_id = 0; 3664 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3665 lsta->in_mgd = false; 3666 } 3667 3668 /* sync_rx_queues */ 3669 lkpi_80211_mo_sync_rx_queues(hw); 3670 3671 #ifdef LKPI_80211_HW_CRYPTO 3672 if (lkpi_hwcrypto) { 3673 error = lkpi_sta_del_keys(hw, vif, lsta); 3674 if (error != 0) { 3675 ic_printf(vap->iv_ic, "%s:%d: lkpi_sta_del_keys " 3676 "failed: %d\n", __func__, __LINE__, error); 3677 /* 3678 * Either drv/fw will crash or cleanup itself, 3679 * otherwise net80211 will delete the keys (at a 3680 * less appropriate time). 3681 */ 3682 /* goto out; */ 3683 } 3684 } 3685 #endif 3686 3687 /* sta_pre_rcu_remove */ 3688 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 3689 3690 synchronize_net(); 3691 3692 /* Take the station down. */ 3693 3694 bss_changed = 0; 3695 /* 3696 * Start updating bss info (*bss_info_changed) (assoc, aid, ..). 3697 * 3698 * One would expect this to happen when going off AUTHORIZED but 3699 * not so. 3700 * 3701 * Immediately issuing the (*bss_info_changed) used to also remove the 3702 * sta from firmware for iwlwifi; or we have problems with the sta 3703 * silently not being removed and then crash upon the next sta add. 3704 * Neither seems to be the case or a problem still. 3705 * 3706 * Contrary for BE200 (iwlwifi/mld) if we do not issue the 3707 * (*vif_cfg_change) to tell FW that we are no longer assoc 3708 * it will crash now upon sta rm. So the order now is as we once 3709 * expected it: 3710 * 3711 * 1) lkpi_disassoc(): set vif->cfg.assoc = false and .aid=0 3712 * 2) add the remaining BSS_CHANGED changes and call (*bss_info_changed) 3713 * (which may be split up into (*vif_cfg_change) and 3714 * (*link_info_changed) for more modern drivers). 3715 * 3) call the last sta_state update -> IEEE80211_STA_NOTEXIST 3716 * (removes the sta given assoc is false) and tidy up our lists. 3717 * 4) call unassign_vif_chanctx 3718 * 5) call lkpi_hw_conf_idle 3719 * 6) call remove_chanctx 3720 * 3721 * Note: vif->driver_flags & IEEE80211_VIF_REMOVE_AP_AFTER_DISASSOC 3722 * might change this. 3723 */ 3724 bss_changed |= lkpi_disassoc(sta, vif, lhw); 3725 3726 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3727 3728 IMPROVE("Any bss_info changes to announce?"); 3729 vif->bss_conf.qos = false; 3730 bss_changed |= BSS_CHANGED_QOS; 3731 vif->cfg.ssid_len = 0; 3732 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 3733 IEEE80211_ADDR_COPY(vif->cfg.ap_addr, ieee80211broadcastaddr); 3734 bss_changed |= BSS_CHANGED_BSSID; 3735 vif->bss_conf.use_short_preamble = false; 3736 /* XXX BSS_CHANGED_???? */ 3737 vif->bss_conf.dtim_period = 0; /* go back to 0. */ 3738 bss_changed |= BSS_CHANGED_BEACON_INFO; 3739 lkpi_bss_info_change(hw, vif, bss_changed); 3740 3741 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 3742 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3743 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 3744 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 3745 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 3746 if (error != 0) { 3747 IMPROVE("do we need to undo the chan ctx?"); 3748 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 3749 "failed: %d\n", __func__, __LINE__, error); 3750 goto out; 3751 } 3752 3753 lkpi_lsta_remove(lsta, lvif); 3754 3755 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3756 3757 LKPI_80211_LVIF_LOCK(lvif); 3758 /* Remove ni reference for this cache of lsta. */ 3759 lvif->lvif_bss = NULL; 3760 lvif->lvif_bss_synched = false; 3761 LKPI_80211_LVIF_UNLOCK(lvif); 3762 3763 /* conf_tx */ 3764 3765 lkpi_remove_chanctx(hw, vif); 3766 3767 out: 3768 wiphy_unlock(hw->wiphy); 3769 IEEE80211_LOCK(vap->iv_ic); 3770 if (error == 0) { 3771 /* 3772 * We do this outside the wiphy lock as net80211::node_free() may call 3773 * into crypto code to delete keys and we have a recursed on 3774 * non-recursive sx panic. Also only do this if we get here w/o error. 3775 * 3776 * The very last release the reference on the ni for the ni/lsta on 3777 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 3778 * and potentially freed. 3779 */ 3780 ieee80211_free_node(ni); 3781 } 3782 return (error); 3783 } 3784 3785 /* DOWN4 */ 3786 static int 3787 lkpi_sta_scan_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3788 { 3789 /* lkpi_iv_newstate() handles the stop scan case in common code. */ 3790 return (lkpi_sta_state_do_nada(vap, nstate, arg)); 3791 } 3792 3793 /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ 3794 3795 static int 3796 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3797 { 3798 int error; 3799 3800 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 3801 if (error == 0) 3802 error = lkpi_sta_scan_to_init(vap, nstate, arg); 3803 return (error); 3804 } 3805 3806 /* auth_to_auth, assoc_to_assoc. */ 3807 static int 3808 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3809 { 3810 struct lkpi_hw *lhw; 3811 struct ieee80211_hw *hw; 3812 struct lkpi_vif *lvif; 3813 struct ieee80211_vif *vif; 3814 struct lkpi_sta *lsta; 3815 struct ieee80211_prep_tx_info prep_tx_info; 3816 int error; 3817 3818 lhw = vap->iv_ic->ic_softc; 3819 hw = LHW_TO_HW(lhw); 3820 lvif = VAP_TO_LVIF(vap); 3821 vif = LVIF_TO_VIF(lvif); 3822 3823 IEEE80211_UNLOCK(vap->iv_ic); 3824 wiphy_lock(hw->wiphy); 3825 3826 LKPI_80211_LVIF_LOCK(lvif); 3827 /* XXX-BZ KASSERT later? */ 3828 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 3829 #ifdef LINUXKPI_DEBUG_80211 3830 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3831 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3832 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3833 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3834 lvif->lvif_bss_synched); 3835 #endif 3836 LKPI_80211_LVIF_UNLOCK(lvif); 3837 error = ENOTRECOVERABLE; 3838 goto out; 3839 } 3840 lsta = lvif->lvif_bss; 3841 LKPI_80211_LVIF_UNLOCK(lvif); 3842 3843 KASSERT(lsta != NULL, ("%s: lsta %p! lvif %p vap %p\n", __func__, 3844 lsta, lvif, vap)); 3845 3846 IMPROVE("event callback?"); 3847 3848 /* End mgd_complete_tx. */ 3849 if (lsta->in_mgd) { 3850 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3851 if (vap->iv_state == IEEE80211_S_AUTH) 3852 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3853 else 3854 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3855 prep_tx_info.link_id = 0; 3856 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3857 lsta->in_mgd = false; 3858 } 3859 3860 /* Now start auth/assoc. */ 3861 3862 /* Start mgd_prepare_tx. */ 3863 if (!lsta->in_mgd) { 3864 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3865 if (nstate == IEEE80211_S_AUTH) 3866 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3867 else 3868 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3869 prep_tx_info.link_id = 0; 3870 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 3871 lsta->in_mgd = true; 3872 } 3873 3874 error = 0; 3875 out: 3876 wiphy_unlock(hw->wiphy); 3877 IEEE80211_LOCK(vap->iv_ic); 3878 3879 return (error); 3880 } 3881 3882 static int 3883 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3884 { 3885 int error; 3886 3887 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 3888 if (error != 0 && error != EALREADY) 3889 return (error); 3890 3891 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 3892 return (error); 3893 } 3894 3895 static int 3896 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3897 { 3898 int error; 3899 3900 error = lkpi_sta_assoc_to_scan(vap, nstate, arg); 3901 if (error != 0 && error != EALREADY) 3902 return (error); 3903 3904 error = lkpi_sta_scan_to_init(vap, nstate, arg); /* do_nada */ 3905 return (error); 3906 } 3907 3908 static int 3909 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3910 { 3911 int error; 3912 3913 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 3914 if (error != 0 && error != EALREADY) 3915 return (error); 3916 3917 error = lkpi_sta_assoc_to_init(vap, nstate, arg); 3918 return (error); 3919 } 3920 3921 static int 3922 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3923 { 3924 int error; 3925 3926 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 3927 if (error != 0 && error != EALREADY) 3928 return (error); 3929 3930 error = lkpi_sta_assoc_to_scan(vap, nstate, arg); 3931 return (error); 3932 } 3933 3934 static int 3935 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3936 { 3937 int error; 3938 3939 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 3940 if (error != 0 && error != EALREADY) 3941 return (error); 3942 3943 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 3944 return (error); 3945 } 3946 3947 /* -------------------------------------------------------------------------- */ 3948 3949 /* 3950 * The matches the documented state changes in net80211::sta_newstate(). 3951 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 3952 * there are "invalid" (so there is a room for failure here). 3953 */ 3954 struct fsm_state { 3955 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 3956 enum ieee80211_state ostate; 3957 enum ieee80211_state nstate; 3958 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 3959 } sta_state_fsm[] = { 3960 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 3961 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* DOWN4 scan_to_init */ 3962 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 3963 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 3964 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 3965 3966 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_init_to_scan }, /* UP1 */ 3967 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 3968 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, /* DOWN3 */ 3969 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 3970 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 3971 3972 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 3973 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* UP2 Send AUTH. */ 3974 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 3975 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* DOWN2 Send ?AUTH. */ 3976 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 3977 3978 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* UP3.1 Send ASSOCREQ. */ 3979 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 3980 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* DOWN1 Send ASSOCREQ/REASSOCREQ. */ 3981 3982 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, /* UP3.2 */ 3983 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, /* UP4 */ 3984 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 3985 3986 /* Dummy at the end without handler. */ 3987 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 3988 }; 3989 3990 static int 3991 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3992 { 3993 struct ieee80211com *ic; 3994 struct lkpi_hw *lhw; 3995 struct lkpi_vif *lvif; 3996 struct ieee80211_vif *vif; 3997 struct fsm_state *s; 3998 enum ieee80211_state ostate; 3999 int error; 4000 4001 ic = vap->iv_ic; 4002 IEEE80211_LOCK_ASSERT(ic); 4003 ostate = vap->iv_state; 4004 4005 #ifdef LINUXKPI_DEBUG_80211 4006 if (linuxkpi_debug_80211 & D80211_TRACE) 4007 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 4008 __func__, __LINE__, vap, nstate, arg); 4009 #endif 4010 4011 if (vap->iv_opmode == IEEE80211_M_STA) { 4012 4013 lhw = ic->ic_softc; 4014 lvif = VAP_TO_LVIF(vap); 4015 vif = LVIF_TO_VIF(lvif); 4016 4017 /* No need to replicate this in most state handlers. */ 4018 if (nstate > IEEE80211_S_SCAN) 4019 lkpi_stop_hw_scan(lhw, vif); 4020 4021 s = sta_state_fsm; 4022 4023 } else { 4024 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 4025 "vap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 4026 return (ENOSYS); 4027 } 4028 4029 error = 0; 4030 for (; s->handler != NULL; s++) { 4031 if (ostate == s->ostate && nstate == s->nstate) { 4032 #ifdef LINUXKPI_DEBUG_80211 4033 if (linuxkpi_debug_80211 & D80211_TRACE) 4034 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 4035 " %d (%s): arg %d.\n", __func__, 4036 ostate, ieee80211_state_name[ostate], 4037 nstate, ieee80211_state_name[nstate], arg); 4038 #endif 4039 error = s->handler(vap, nstate, arg); 4040 break; 4041 } 4042 } 4043 IEEE80211_LOCK_ASSERT(vap->iv_ic); 4044 4045 if (s->handler == NULL) { 4046 IMPROVE("turn this into a KASSERT\n"); 4047 ic_printf(vap->iv_ic, "%s: unsupported state transition " 4048 "%d (%s) -> %d (%s)\n", __func__, 4049 ostate, ieee80211_state_name[ostate], 4050 nstate, ieee80211_state_name[nstate]); 4051 return (ENOSYS); 4052 } 4053 4054 if (error == EALREADY) { 4055 #ifdef LINUXKPI_DEBUG_80211 4056 if (linuxkpi_debug_80211 & D80211_TRACE) 4057 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 4058 "%d (%s): iv_newstate already handled: %d.\n", 4059 __func__, ostate, ieee80211_state_name[ostate], 4060 nstate, ieee80211_state_name[nstate], error); 4061 #endif 4062 return (0); 4063 } 4064 4065 if (error != 0) { 4066 ic_printf(vap->iv_ic, "%s: error %d during state transition " 4067 "%d (%s) -> %d (%s)\n", __func__, error, 4068 ostate, ieee80211_state_name[ostate], 4069 nstate, ieee80211_state_name[nstate]); 4070 return (error); 4071 } 4072 4073 #ifdef LINUXKPI_DEBUG_80211 4074 if (linuxkpi_debug_80211 & D80211_TRACE) 4075 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 4076 "calling net80211 parent\n", 4077 __func__, __LINE__, vap, nstate, arg); 4078 #endif 4079 4080 return (lvif->iv_newstate(vap, nstate, arg)); 4081 } 4082 4083 /* -------------------------------------------------------------------------- */ 4084 4085 /* 4086 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 4087 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 4088 * new node without us knowing and thus our ni/lsta are out of sync. 4089 */ 4090 static struct ieee80211_node * 4091 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 4092 { 4093 struct lkpi_vif *lvif; 4094 struct ieee80211_node *rni; 4095 4096 IEEE80211_LOCK_ASSERT(vap->iv_ic); 4097 4098 lvif = VAP_TO_LVIF(vap); 4099 4100 LKPI_80211_LVIF_LOCK(lvif); 4101 lvif->lvif_bss_synched = false; 4102 LKPI_80211_LVIF_UNLOCK(lvif); 4103 4104 rni = lvif->iv_update_bss(vap, ni); 4105 return (rni); 4106 } 4107 4108 #ifdef LKPI_80211_WME 4109 static int 4110 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 4111 { 4112 struct ieee80211com *ic; 4113 struct ieee80211_hw *hw; 4114 struct lkpi_vif *lvif; 4115 struct ieee80211_vif *vif; 4116 struct chanAccParams chp; 4117 struct wmeParams wmeparr[WME_NUM_AC]; 4118 struct ieee80211_tx_queue_params txqp; 4119 enum ieee80211_bss_changed bss_changed; 4120 int error; 4121 uint16_t ac; 4122 4123 hw = LHW_TO_HW(lhw); 4124 lockdep_assert_wiphy(hw->wiphy); 4125 4126 IMPROVE(); 4127 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 4128 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 4129 4130 if (vap == NULL) 4131 return (0); 4132 4133 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 4134 return (0); 4135 4136 if (lhw->ops->conf_tx == NULL) 4137 return (0); 4138 4139 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 4140 lhw->update_wme = true; 4141 return (0); 4142 } 4143 lhw->update_wme = false; 4144 4145 ic = lhw->ic; 4146 ieee80211_wme_ic_getparams(ic, &chp); 4147 IEEE80211_LOCK(ic); 4148 for (ac = 0; ac < WME_NUM_AC; ac++) 4149 wmeparr[ac] = chp.cap_wmeParams[ac]; 4150 IEEE80211_UNLOCK(ic); 4151 4152 lvif = VAP_TO_LVIF(vap); 4153 vif = LVIF_TO_VIF(lvif); 4154 4155 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 4156 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4157 struct wmeParams *wmep; 4158 4159 wmep = &wmeparr[ac]; 4160 bzero(&txqp, sizeof(txqp)); 4161 txqp.cw_min = wmep->wmep_logcwmin; 4162 txqp.cw_max = wmep->wmep_logcwmax; 4163 txqp.txop = wmep->wmep_txopLimit; 4164 txqp.aifs = wmep->wmep_aifsn; 4165 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 4166 if (error != 0) 4167 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 4168 __func__, ac, error); 4169 } 4170 bss_changed = BSS_CHANGED_QOS; 4171 if (!planned) 4172 lkpi_bss_info_change(hw, vif, bss_changed); 4173 4174 return (bss_changed); 4175 } 4176 #endif 4177 4178 static int 4179 lkpi_ic_wme_update(struct ieee80211com *ic) 4180 { 4181 #ifdef LKPI_80211_WME 4182 struct ieee80211vap *vap; 4183 struct lkpi_hw *lhw; 4184 struct ieee80211_hw *hw; 4185 4186 IMPROVE("Use the per-VAP callback in net80211."); 4187 vap = TAILQ_FIRST(&ic->ic_vaps); 4188 if (vap == NULL) 4189 return (0); 4190 4191 lhw = ic->ic_softc; 4192 hw = LHW_TO_HW(lhw); 4193 4194 wiphy_lock(hw->wiphy); 4195 lkpi_wme_update(lhw, vap, false); 4196 wiphy_unlock(hw->wiphy); 4197 #endif 4198 return (0); /* unused */ 4199 } 4200 4201 static void 4202 lkpi_iv_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, 4203 int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf) 4204 { 4205 struct lkpi_hw *lhw; 4206 struct ieee80211_hw *hw; 4207 struct lkpi_vif *lvif; 4208 struct ieee80211_vif *vif; 4209 enum ieee80211_bss_changed bss_changed; 4210 4211 lvif = VAP_TO_LVIF(ni->ni_vap); 4212 vif = LVIF_TO_VIF(lvif); 4213 4214 lvif->iv_recv_mgmt(ni, m0, subtype, rxs, rssi, nf); 4215 4216 switch (subtype) { 4217 case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 4218 break; 4219 case IEEE80211_FC0_SUBTYPE_BEACON: 4220 /* 4221 * Only count beacons when assoc. SCAN has its own logging. 4222 * This is for connection/beacon loss/session protection almost 4223 * over debugging when trying to get into a stable RUN state. 4224 */ 4225 if (vif->cfg.assoc) 4226 lvif->beacons++; 4227 break; 4228 default: 4229 return; 4230 } 4231 4232 lhw = ni->ni_ic->ic_softc; 4233 hw = LHW_TO_HW(lhw); 4234 4235 /* 4236 * If this direct call to mo_bss_info_changed will not work due to 4237 * locking, see if queue_work() is fast enough. 4238 */ 4239 bss_changed = lkpi_update_dtim_tsf(vif, ni, ni->ni_vap, __func__, __LINE__); 4240 lkpi_bss_info_change(hw, vif, bss_changed); 4241 } 4242 4243 /* 4244 * Change link-layer address on the vif (if the vap is not started/"UP"). 4245 * This can happen if a user changes 'ether' using ifconfig. 4246 * The code is based on net80211/ieee80211_freebsd.c::wlan_iflladdr() but 4247 * we do use a per-[l]vif event handler to be sure we exist as we 4248 * cannot assume that from every vap derives a vif and we have a hard 4249 * time checking based on net80211 information. 4250 * Should this ever become a real problem we could add a callback function 4251 * to wlan_iflladdr() to be set optionally but that would be for a 4252 * single-consumer (or needs a list) -- was just too complicated for an 4253 * otherwise perfect mechanism FreeBSD already provides. 4254 */ 4255 static void 4256 lkpi_vif_iflladdr(void *arg, struct ifnet *ifp) 4257 { 4258 struct epoch_tracker et; 4259 struct ieee80211_vif *vif; 4260 4261 NET_EPOCH_ENTER(et); 4262 /* NB: identify vap's by if_transmit; left as an extra check. */ 4263 if (if_gettransmitfn(ifp) != ieee80211_vap_transmit || 4264 (if_getflags(ifp) & IFF_UP) != 0) { 4265 NET_EPOCH_EXIT(et); 4266 return; 4267 } 4268 4269 vif = arg; 4270 IEEE80211_ADDR_COPY(vif->bss_conf.addr, if_getlladdr(ifp)); 4271 NET_EPOCH_EXIT(et); 4272 } 4273 4274 static struct ieee80211vap * 4275 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 4276 int unit, enum ieee80211_opmode opmode, int flags, 4277 const uint8_t bssid[IEEE80211_ADDR_LEN], 4278 const uint8_t mac[IEEE80211_ADDR_LEN]) 4279 { 4280 struct lkpi_hw *lhw; 4281 struct ieee80211_hw *hw; 4282 struct lkpi_vif *lvif; 4283 struct ieee80211vap *vap; 4284 struct ieee80211_vif *vif; 4285 struct ieee80211_tx_queue_params txqp; 4286 enum ieee80211_bss_changed bss_changed; 4287 enum nl80211_band band; 4288 struct sysctl_oid *node; 4289 size_t len; 4290 int error, i; 4291 uint16_t ac; 4292 4293 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 4294 return (NULL); 4295 4296 lhw = ic->ic_softc; 4297 hw = LHW_TO_HW(lhw); 4298 4299 len = sizeof(*lvif); 4300 len += hw->vif_data_size; /* vif->drv_priv */ 4301 4302 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 4303 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 4304 TASK_INIT(&lvif->sw_scan_task, 0, lkpi_sw_scan_task, lvif); 4305 INIT_LIST_HEAD(&lvif->lsta_list); 4306 lvif->lvif_bss = NULL; 4307 refcount_init(&lvif->nt_unlocked, 0); 4308 lvif->lvif_bss_synched = false; 4309 vap = LVIF_TO_VAP(lvif); 4310 vif = LVIF_TO_VIF(lvif); 4311 4312 /* 4313 * Setup legacy br_mask here. We will call (*set_bitrate_mask) 4314 * elsewhere to announce it to the driver but it is a static 4315 * setup. 4316 * Also setup basic_rates with just the mandatory rates for the 4317 * current band (if avail). 4318 */ 4319 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4320 struct ieee80211_supported_band *supband; 4321 uint32_t rate_mandatory;; 4322 4323 supband = hw->wiphy->bands[band]; 4324 if (supband == NULL || supband->n_bitrates == 0) 4325 continue; 4326 4327 /* Per-band legacy br_mask. */ 4328 lvif->br_mask.control[band].legacy = (1 << supband->n_bitrates) - 1; 4329 4330 /* basic_rates for the current band. */ 4331 if (hw->conf.chandef.chan == NULL || 4332 hw->conf.chandef.chan->band != band) 4333 continue; 4334 4335 switch (band) { 4336 case NL80211_BAND_2GHZ: 4337 /* We have to assume 11g support here. */ 4338 rate_mandatory = IEEE80211_RATE_MANDATORY_G | 4339 IEEE80211_RATE_MANDATORY_B; 4340 break; 4341 case NL80211_BAND_5GHZ: 4342 rate_mandatory = IEEE80211_RATE_MANDATORY_A; 4343 break; 4344 default: 4345 continue; 4346 } 4347 4348 for (i = 0; i < supband->n_bitrates; i++) { 4349 if ((supband->bitrates[i].flags & rate_mandatory) != 0) 4350 vif->bss_conf.basic_rates |= BIT(i); 4351 } 4352 } 4353 4354 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 4355 vif->p2p = false; 4356 vif->probe_req_reg = false; 4357 vif->type = lkpi_opmode_to_vif_type(opmode); 4358 lvif->wdev.iftype = vif->type; 4359 /* Need to fill in other fields as well. */ 4360 IMPROVE(); 4361 4362 /* Create a chanctx to be used later. */ 4363 IMPROVE("lkpi_alloc_lchanctx reserved as many as can be"); 4364 (void) lkpi_find_lchanctx_reserved(hw, lvif); 4365 4366 /* XXX-BZ hardcoded for now! */ 4367 #if 1 4368 RCU_INIT_POINTER(vif->bss_conf.chanctx_conf, NULL); 4369 vif->bss_conf.vif = vif; 4370 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 4371 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 4372 lvif->lvif_ifllevent = EVENTHANDLER_REGISTER(iflladdr_event, 4373 lkpi_vif_iflladdr, vif, EVENTHANDLER_PRI_ANY); 4374 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 4375 vif->bss_conf.chanreq.oper.chan = lhw->dflt_chandef.chan; 4376 vif->bss_conf.chanreq.oper.width = NL80211_CHAN_WIDTH_20_NOHT; 4377 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 4378 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 4379 vif->bss_conf.qos = false; 4380 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 4381 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 4382 IEEE80211_ADDR_COPY(vif->cfg.ap_addr, ieee80211broadcastaddr); 4383 vif->cfg.aid = 0; 4384 vif->cfg.assoc = false; 4385 vif->cfg.idle = true; 4386 vif->cfg.ps = false; 4387 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 4388 /* 4389 * We need to initialize it to something as the bss_info_changed call 4390 * will try to copy from it in iwlwifi and NULL is a panic. 4391 * We will set the proper one in scan_to_auth() before being assoc. 4392 */ 4393 vif->bss_conf.bssid = ieee80211broadcastaddr; 4394 #endif 4395 #if 0 4396 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 4397 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 4398 vif->bss_conf.beacon_int = ic->ic_bintval; 4399 /* iwlwifi bug. */ 4400 if (vif->bss_conf.beacon_int < 16) 4401 vif->bss_conf.beacon_int = 16; 4402 #endif 4403 4404 /* Link Config */ 4405 vif->link_conf[0] = &vif->bss_conf; 4406 for (i = 0; i < nitems(vif->link_conf); i++) { 4407 IMPROVE("more than 1 link one day"); 4408 } 4409 4410 /* Setup queue defaults; driver may override in (*add_interface). */ 4411 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 4412 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 4413 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 4414 else if (hw->queues >= IEEE80211_NUM_ACS) 4415 vif->hw_queue[i] = i; 4416 else 4417 vif->hw_queue[i] = 0; 4418 4419 /* Initialize the queue to running. Stopped? */ 4420 lvif->hw_queue_stopped[i] = false; 4421 } 4422 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 4423 4424 IMPROVE(); 4425 4426 wiphy_lock(hw->wiphy); 4427 error = lkpi_80211_mo_start(hw); 4428 if (error != 0) { 4429 wiphy_unlock(hw->wiphy); 4430 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 4431 mtx_destroy(&lvif->mtx); 4432 free(lvif, M_80211_VAP); 4433 return (NULL); 4434 } 4435 4436 error = lkpi_80211_mo_add_interface(hw, vif); 4437 if (error != 0) { 4438 IMPROVE(); /* XXX-BZ mo_stop()? */ 4439 wiphy_unlock(hw->wiphy); 4440 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 4441 mtx_destroy(&lvif->mtx); 4442 free(lvif, M_80211_VAP); 4443 return (NULL); 4444 } 4445 wiphy_unlock(hw->wiphy); 4446 4447 LKPI_80211_LHW_LVIF_LOCK(lhw); 4448 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 4449 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4450 4451 /* Set bss_info. */ 4452 bss_changed = 0; 4453 lkpi_bss_info_change(hw, vif, bss_changed); 4454 4455 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 4456 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 4457 wiphy_lock(hw->wiphy); 4458 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4459 4460 bzero(&txqp, sizeof(txqp)); 4461 txqp.cw_min = 15; 4462 txqp.cw_max = 1023; 4463 txqp.txop = 0; 4464 txqp.aifs = 2; 4465 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 4466 if (error != 0) 4467 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 4468 __func__, ac, error); 4469 } 4470 bss_changed = BSS_CHANGED_QOS; 4471 lkpi_bss_info_change(hw, vif, bss_changed); 4472 4473 /* Force MC init. */ 4474 lkpi_update_mcast_filter_locked(ic); 4475 4476 wiphy_unlock(hw->wiphy); 4477 4478 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 4479 4480 /* Now we have a valid vap->iv_ifp. Any checksum offloading goes below. */ 4481 4482 IMPROVE(); 4483 4484 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 4485 lvif->iv_newstate = vap->iv_newstate; 4486 vap->iv_newstate = lkpi_iv_newstate; 4487 lvif->iv_update_bss = vap->iv_update_bss; 4488 vap->iv_update_bss = lkpi_iv_update_bss; 4489 lvif->iv_recv_mgmt = vap->iv_recv_mgmt; 4490 vap->iv_recv_mgmt = lkpi_iv_sta_recv_mgmt; 4491 4492 #ifdef LKPI_80211_HW_CRYPTO 4493 /* Key management. */ 4494 if (lkpi_hwcrypto && lhw->ops->set_key != NULL) { 4495 vap->iv_key_set = lkpi_iv_key_set; 4496 vap->iv_key_delete = lkpi_iv_key_delete; 4497 vap->iv_key_update_begin = lkpi_iv_key_update_begin; 4498 vap->iv_key_update_end = lkpi_iv_key_update_end; 4499 } 4500 #endif 4501 4502 #ifdef LKPI_80211_HT 4503 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 4504 #endif 4505 4506 ieee80211_ratectl_init(vap); 4507 4508 /* Complete setup. */ 4509 ieee80211_vap_attach(vap, ieee80211_media_change, 4510 ieee80211_media_status, mac); 4511 4512 #ifdef LKPI_80211_HT 4513 /* 4514 * Modern chipset/fw/drv will do A-MPDU in drv/fw and fail 4515 * to do so if they cannot do the crypto too. 4516 */ 4517 if (!lkpi_hwcrypto && IEEE80211_CONF_AMPDU_OFFLOAD(ic)) 4518 vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX; 4519 #endif 4520 4521 if (hw->max_listen_interval == 0) 4522 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 4523 hw->conf.listen_interval = hw->max_listen_interval; 4524 4525 /* XXX-BZ do we need to be able to update these? */ 4526 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 4527 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 4528 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 4529 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 4530 /* any others? */ 4531 4532 /* Add per-VIF/VAP sysctls. */ 4533 sysctl_ctx_init(&lvif->sysctl_ctx); 4534 4535 node = SYSCTL_ADD_NODE(&lvif->sysctl_ctx, 4536 SYSCTL_CHILDREN(&sysctl___compat_linuxkpi_80211), 4537 OID_AUTO, if_name(vap->iv_ifp), 4538 CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE, NULL, "VIF Information"); 4539 4540 SYSCTL_ADD_PROC(&lvif->sysctl_ctx, 4541 SYSCTL_CHILDREN(node), OID_AUTO, "dump_stas", 4542 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, lvif, 0, 4543 lkpi_80211_dump_stas, "A", "Dump sta statistics of this vif"); 4544 SYSCTL_ADD_PROC(&lvif->sysctl_ctx, 4545 SYSCTL_CHILDREN(node), OID_AUTO, "dump_stas_queues", 4546 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE | CTLFLAG_SKIP, lvif, 0, 4547 lkpi_80211_dump_sta_queues, "A", 4548 "Dump queue statistics for any sta of this vif"); 4549 4550 IMPROVE(); 4551 4552 return (vap); 4553 } 4554 4555 void 4556 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 4557 { 4558 4559 wiphy_unregister(hw->wiphy); 4560 linuxkpi_ieee80211_ifdetach(hw); 4561 4562 IMPROVE(); 4563 } 4564 4565 void 4566 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 4567 { 4568 4569 TODO(); 4570 } 4571 4572 static void 4573 lkpi_ic_vap_delete(struct ieee80211vap *vap) 4574 { 4575 struct ieee80211com *ic; 4576 struct lkpi_hw *lhw; 4577 struct ieee80211_hw *hw; 4578 struct lkpi_vif *lvif; 4579 struct ieee80211_vif *vif; 4580 4581 lvif = VAP_TO_LVIF(vap); 4582 vif = LVIF_TO_VIF(lvif); 4583 ic = vap->iv_ic; 4584 lhw = ic->ic_softc; 4585 hw = LHW_TO_HW(lhw); 4586 4587 EVENTHANDLER_DEREGISTER(iflladdr_event, lvif->lvif_ifllevent); 4588 4589 /* Clear up per-VIF/VAP sysctls. */ 4590 sysctl_ctx_free(&lvif->sysctl_ctx); 4591 4592 ieee80211_draintask(ic, &lvif->sw_scan_task); 4593 4594 LKPI_80211_LHW_LVIF_LOCK(lhw); 4595 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 4596 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4597 4598 ieee80211_ratectl_deinit(vap); 4599 ieee80211_vap_detach(vap); 4600 4601 IMPROVE("clear up other bits in this state"); 4602 4603 lkpi_80211_mo_remove_interface(hw, vif); 4604 4605 /* Single VAP, so we can do this here. */ 4606 lkpi_80211_mo_stop(hw, false); /* XXX SUSPEND */ 4607 4608 mtx_destroy(&lvif->mtx); 4609 free(lvif, M_80211_VAP); 4610 } 4611 4612 static void 4613 lkpi_ic_update_mcast(struct ieee80211com *ic) 4614 { 4615 struct ieee80211vap *vap; 4616 struct lkpi_hw *lhw; 4617 4618 lhw = ic->ic_softc; 4619 4620 LKPI_80211_LHW_MC_LOCK(lhw); 4621 /* Cleanup anything on the current list. */ 4622 lkpi_cleanup_mcast_list_locked(lhw); 4623 4624 /* Build up the new list (or allmulti). */ 4625 if (ic->ic_allmulti == 0) { 4626 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 4627 if_foreach_llmaddr(vap->iv_ifp, 4628 lkpi_ic_update_mcast_copy, &lhw->mc_list); 4629 lhw->mc_all_multi = false; 4630 } else { 4631 lhw->mc_all_multi = true; 4632 } 4633 LKPI_80211_LHW_MC_UNLOCK(lhw); 4634 4635 lkpi_update_mcast_filter(ic); 4636 TRACEOK(); 4637 } 4638 4639 static void 4640 lkpi_ic_update_promisc(struct ieee80211com *ic) 4641 { 4642 4643 UNIMPLEMENTED; 4644 } 4645 4646 static void 4647 lkpi_ic_update_chw(struct ieee80211com *ic) 4648 { 4649 4650 UNIMPLEMENTED; 4651 } 4652 4653 /* Start / stop device. */ 4654 static void 4655 lkpi_ic_parent(struct ieee80211com *ic) 4656 { 4657 struct lkpi_hw *lhw; 4658 struct ieee80211_hw *hw; 4659 #ifdef HW_START_STOP 4660 int error; 4661 #endif 4662 bool start_all; 4663 4664 IMPROVE(); 4665 4666 lhw = ic->ic_softc; 4667 hw = LHW_TO_HW(lhw); 4668 start_all = false; 4669 4670 /* IEEE80211_UNLOCK(ic); */ 4671 wiphy_lock(hw->wiphy); 4672 if (ic->ic_nrunning > 0) { 4673 #ifdef HW_START_STOP 4674 error = lkpi_80211_mo_start(hw); 4675 if (error == 0) 4676 #endif 4677 start_all = true; 4678 } else { 4679 #ifdef HW_START_STOP 4680 lkpi_80211_mo_stop(hw, false); /* XXX SUSPEND */ 4681 #endif 4682 } 4683 wiphy_unlock(hw->wiphy); 4684 /* IEEE80211_LOCK(ic); */ 4685 4686 if (start_all) 4687 ieee80211_start_all(ic); 4688 } 4689 4690 bool 4691 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 4692 size_t ie_ids_len) 4693 { 4694 int i; 4695 4696 for (i = 0; i < ie_ids_len; i++) { 4697 if (ie == *ie_ids) 4698 return (true); 4699 } 4700 4701 return (false); 4702 } 4703 4704 /* Return true if skipped; false if error. */ 4705 bool 4706 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 4707 { 4708 size_t x; 4709 uint8_t l; 4710 4711 x = *xp; 4712 4713 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 4714 __func__, x, ies_len, ies)); 4715 l = ies[x + 1]; 4716 x += 2 + l; 4717 4718 if (x > ies_len) 4719 return (false); 4720 4721 *xp = x; 4722 return (true); 4723 } 4724 4725 static uint8_t * 4726 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 4727 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 4728 { 4729 struct ieee80211_supported_band *supband; 4730 struct linuxkpi_ieee80211_channel *channels; 4731 struct ieee80211com *ic; 4732 const struct ieee80211_channel *chan; 4733 const struct ieee80211_rateset *rs; 4734 uint8_t *pb; 4735 int band, i; 4736 4737 ic = vap->iv_ic; 4738 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4739 if ((band_mask & (1 << band)) == 0) 4740 continue; 4741 4742 supband = hw->wiphy->bands[band]; 4743 /* 4744 * This should not happen; 4745 * band_mask is a bitmask of valid bands to scan on. 4746 */ 4747 if (supband == NULL || supband->n_channels == 0) 4748 continue; 4749 4750 /* Find a first channel to get the mode and rates from. */ 4751 channels = supband->channels; 4752 chan = NULL; 4753 for (i = 0; i < supband->n_channels; i++) { 4754 uint32_t flags; 4755 4756 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4757 continue; 4758 4759 flags = 0; 4760 switch (band) { 4761 case NL80211_BAND_2GHZ: 4762 flags |= IEEE80211_CHAN_G; 4763 break; 4764 case NL80211_BAND_5GHZ: 4765 flags |= IEEE80211_CHAN_A; 4766 break; 4767 default: 4768 panic("%s:%d: unupported band %d\n", 4769 __func__, __LINE__, band); 4770 } 4771 4772 chan = ieee80211_find_channel(ic, 4773 channels[i].center_freq, flags); 4774 if (chan != NULL) 4775 break; 4776 } 4777 4778 /* This really should not happen. */ 4779 if (chan == NULL) 4780 continue; 4781 4782 pb = p; 4783 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 4784 p = ieee80211_add_rates(p, rs); 4785 p = ieee80211_add_xrates(p, rs); 4786 4787 #if defined(LKPI_80211_HT) 4788 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 4789 struct ieee80211_channel *c; 4790 4791 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 4792 vap->iv_flags_ht); 4793 p = ieee80211_add_htcap_ch(p, vap, c); 4794 } 4795 #endif 4796 #if defined(LKPI_80211_VHT) 4797 if (band == NL80211_BAND_5GHZ && 4798 (vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 4799 struct ieee80211_channel *c; 4800 4801 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 4802 vap->iv_flags_ht); 4803 c = ieee80211_vht_adjust_channel(ic, c, 4804 vap->iv_vht_flags); 4805 p = ieee80211_add_vhtcap_ch(p, vap, c); 4806 } 4807 #endif 4808 4809 scan_ies->ies[band] = pb; 4810 scan_ies->len[band] = p - pb; 4811 } 4812 4813 /* Add common_ies */ 4814 pb = p; 4815 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 4816 vap->iv_wpa_ie != NULL) { 4817 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 4818 p += 2 + vap->iv_wpa_ie[1]; 4819 } 4820 if (vap->iv_appie_probereq != NULL) { 4821 memcpy(p, vap->iv_appie_probereq->ie_data, 4822 vap->iv_appie_probereq->ie_len); 4823 p += vap->iv_appie_probereq->ie_len; 4824 } 4825 scan_ies->common_ies = pb; 4826 scan_ies->common_ie_len = p - pb; 4827 4828 return (p); 4829 } 4830 4831 static void 4832 lkpi_enable_hw_scan(struct lkpi_hw *lhw) 4833 { 4834 4835 if (lhw->ops->hw_scan) { 4836 /* 4837 * Advertise full-offload scanning. 4838 * 4839 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4840 * we essentially disable hw_scan for all drivers not setting 4841 * the flag. 4842 */ 4843 lhw->ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4844 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4845 } 4846 } 4847 4848 #ifndef LKPI_80211_USE_SCANLIST 4849 static const uint32_t chan_pri[] = { 4850 5180, 5500, 5745, 4851 5260, 5580, 5660, 5825, 4852 5220, 5300, 5540, 5620, 5700, 5785, 5865, 4853 2437, 2412, 2422, 2462, 2472, 2432, 2452 4854 }; 4855 4856 static int 4857 lkpi_scan_chan_list_idx(const struct linuxkpi_ieee80211_channel *lc) 4858 { 4859 int i; 4860 4861 for (i = 0; i < nitems(chan_pri); i++) { 4862 if (lc->center_freq == chan_pri[i]) 4863 return (i); 4864 } 4865 4866 return (-1); 4867 } 4868 4869 static int 4870 lkpi_scan_chan_list_comp(const struct linuxkpi_ieee80211_channel *lc1, 4871 const struct linuxkpi_ieee80211_channel *lc2) 4872 { 4873 int idx1, idx2; 4874 4875 /* Find index in list. */ 4876 idx1 = lkpi_scan_chan_list_idx(lc1); 4877 idx2 = lkpi_scan_chan_list_idx(lc2); 4878 4879 if (idx1 == -1 && idx2 != -1) 4880 return (1); 4881 if (idx1 != -1 && idx2 == -1) 4882 return (-1); 4883 4884 /* Neither on the list, use center_freq. */ 4885 if (idx1 == -1 && idx2 == -1) 4886 return (lc1->center_freq - lc2->center_freq); 4887 4888 /* Whichever is first in the list. */ 4889 return (idx1 - idx2); 4890 } 4891 4892 static void 4893 lkpi_scan_chan_list_resort(struct linuxkpi_ieee80211_channel **cpp, size_t nchan) 4894 { 4895 struct linuxkpi_ieee80211_channel *lc, *nc; 4896 size_t i, j; 4897 int rc; 4898 4899 for (i = (nchan - 1); i > 0; i--) { 4900 for (j = i; j > 0 ; j--) { 4901 lc = *(cpp + j); 4902 nc = *(cpp + j - 1); 4903 rc = lkpi_scan_chan_list_comp(lc, nc); 4904 if (rc < 0) { 4905 *(cpp + j) = nc; 4906 *(cpp + j - 1) = lc; 4907 } 4908 } 4909 } 4910 } 4911 4912 static bool 4913 lkpi_scan_chan(struct linuxkpi_ieee80211_channel *c, 4914 struct ieee80211com *ic, bool log) 4915 { 4916 4917 if ((c->flags & IEEE80211_CHAN_DISABLED) != 0) { 4918 if (log) 4919 TRACE_SCAN(ic, "Skipping disabled chan " 4920 "on band %s [%#x/%u/%#x]", 4921 lkpi_nl80211_band_name(c->band), c->hw_value, 4922 c->center_freq, c->flags); 4923 return (false); 4924 } 4925 if (isclr(ic->ic_chan_active, ieee80211_mhz2ieee(c->center_freq, 4926 lkpi_nl80211_band_to_net80211_band(c->band)))) { 4927 if (log) 4928 TRACE_SCAN(ic, "Skipping !active chan " 4929 "on band %s [%#x/%u/%#x]", 4930 lkpi_nl80211_band_name(c->band), c->hw_value, 4931 c->center_freq, c->flags); 4932 return (false); 4933 } 4934 return (true); 4935 } 4936 #endif 4937 4938 static void 4939 lkpi_ic_scan_start(struct ieee80211com *ic) 4940 { 4941 struct lkpi_hw *lhw; 4942 struct ieee80211_hw *hw; 4943 struct lkpi_vif *lvif; 4944 struct ieee80211_vif *vif; 4945 struct ieee80211_scan_state *ss; 4946 struct ieee80211vap *vap; 4947 int error; 4948 bool is_hw_scan; 4949 4950 lhw = ic->ic_softc; 4951 ss = ic->ic_scan; 4952 vap = ss->ss_vap; 4953 TRACE_SCAN(ic, "scan_flags %b", lhw->scan_flags, LKPI_LHW_SCAN_BITS); 4954 4955 LKPI_80211_LHW_SCAN_LOCK(lhw); 4956 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 4957 /* A scan is still running. */ 4958 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4959 TRACE_SCAN(ic, "Trying to start new scan while still running; " 4960 "cancelling new net80211 scan; scan_flags %b", 4961 lhw->scan_flags, LKPI_LHW_SCAN_BITS); 4962 ieee80211_cancel_scan(vap); 4963 return; 4964 } 4965 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 4966 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4967 4968 #if 0 4969 if (vap->iv_state != IEEE80211_S_SCAN) { 4970 TODO("We need to be able to scan if not in S_SCAN"); 4971 TRACE_SCAN(ic, "scan_flags %b iv_state %d", 4972 lhw->scan_flags, LKPI_LHW_SCAN_BITS, vap->iv_state); 4973 ieee80211_cancel_scan(vap); 4974 return; 4975 } 4976 #endif 4977 4978 hw = LHW_TO_HW(lhw); 4979 if (!is_hw_scan) { 4980 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 4981 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 4982 4983 lvif = VAP_TO_LVIF(vap); 4984 vif = LVIF_TO_VIF(lvif); 4985 4986 if (vap->iv_state == IEEE80211_S_SCAN) { 4987 wiphy_lock(hw->wiphy); 4988 lkpi_hw_conf_idle(hw, false); 4989 wiphy_unlock(hw->wiphy); 4990 } 4991 4992 LKPI_80211_LHW_SCAN_LOCK(lhw); 4993 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 4994 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4995 4996 lkpi_update_mcast_filter(ic); 4997 4998 TRACE_SCAN(vap->iv_ic, "Starting SW_SCAN: scan_flags %b", 4999 lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5000 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 5001 /* net80211::scan_start() handled PS for us. */ 5002 IMPROVE(); 5003 /* XXX Also means it is too late to flush queues? 5004 * need to check iv_sta_ps or overload? */ 5005 /* XXX want to adjust ss end time/ maxdwell? */ 5006 5007 } else { 5008 struct ieee80211_scan_request *hw_req; 5009 struct linuxkpi_ieee80211_channel *lc, **cpp; 5010 struct cfg80211_ssid *ssids; 5011 struct cfg80211_scan_6ghz_params *s6gp; 5012 size_t chan_len, nchan, ssids_len, s6ghzlen; 5013 int band, i, ssid_count, common_ie_len; 5014 #ifndef LKPI_80211_USE_SCANLIST 5015 int n; 5016 #endif 5017 uint32_t band_mask; 5018 uint8_t *ie, *ieend; 5019 bool running; 5020 5021 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 5022 ssids_len = ssid_count * sizeof(*ssids); 5023 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 5024 5025 band_mask = 0; 5026 nchan = 0; 5027 if (ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 5028 #ifdef LKPI_80211_USE_SCANLIST 5029 /* Avoid net80211 scan lists until it has proper scan offload support. */ 5030 for (i = ss->ss_next; i < ss->ss_last; i++) { 5031 nchan++; 5032 band = lkpi_net80211_chan_to_nl80211_band( 5033 ss->ss_chans[ss->ss_next + i]); 5034 band_mask |= (1 << band); 5035 } 5036 #else 5037 /* Instead we scan for all channels all the time. */ 5038 for (band = 0; band < NUM_NL80211_BANDS; band++) { 5039 switch (band) { 5040 case NL80211_BAND_2GHZ: 5041 case NL80211_BAND_5GHZ: 5042 break; 5043 default: 5044 continue; 5045 } 5046 if (hw->wiphy->bands[band] != NULL) { 5047 struct linuxkpi_ieee80211_channel *channels; 5048 int n; 5049 5050 band_mask |= (1 << band); 5051 5052 channels = hw->wiphy->bands[band]->channels; 5053 n = hw->wiphy->bands[band]->n_channels; 5054 for (i = 0; i < n; i++) { 5055 if (lkpi_scan_chan(&channels[i], ic, true)) 5056 nchan++; 5057 } 5058 } 5059 } 5060 #endif 5061 } else { 5062 IMPROVE("individual band scans not yet supported, only scanning first band"); 5063 /* In theory net80211 should drive this. */ 5064 /* Probably we need to add local logic for now; 5065 * need to deal with scan_complete 5066 * and cancel_scan and keep local state. 5067 * Also cut the nchan down above. 5068 */ 5069 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 5070 } 5071 5072 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 5073 5074 common_ie_len = 0; 5075 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 5076 vap->iv_wpa_ie != NULL) 5077 common_ie_len += vap->iv_wpa_ie[1]; 5078 if (vap->iv_appie_probereq != NULL) 5079 common_ie_len += vap->iv_appie_probereq->ie_len; 5080 5081 /* We would love to check this at an earlier stage... */ 5082 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 5083 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 5084 "wiphy->max_scan_ie_len %d\n", __func__, 5085 common_ie_len, hw->wiphy->max_scan_ie_len); 5086 } 5087 5088 hw_req = malloc(sizeof(*hw_req) + ssids_len + 5089 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 5090 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 5091 5092 hw_req->req.flags = 0; /* XXX ??? */ 5093 /* hw_req->req.wdev */ 5094 hw_req->req.wiphy = hw->wiphy; 5095 hw_req->req.no_cck = false; /* XXX */ 5096 5097 /* 5098 * In general setting duration[_mandatory] seems to pessimise 5099 * default scanning behaviour. We only use it for BGSCANnig 5100 * to keep the dwell times small. 5101 * Setting duration_mandatory makes this the maximum dwell 5102 * time (otherwise may be shorter). Duration is in TU. 5103 */ 5104 if ((ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) != 0) { 5105 unsigned long dwell; 5106 5107 if ((ic->ic_caps & IEEE80211_C_BGSCAN) == 0 || 5108 (vap->iv_flags & IEEE80211_F_BGSCAN) == 0) 5109 ic_printf(ic, "BGSCAN despite off: %b, %b, %b\n", 5110 ic->ic_flags_ext, IEEE80211_FEXT_BITS, 5111 vap->iv_flags, IEEE80211_F_BITS, 5112 ic->ic_caps, IEEE80211_C_BITS); 5113 5114 dwell = ss->ss_mindwell; 5115 if (dwell == 0) 5116 dwell = msecs_to_ticks(20); 5117 5118 hw_req->req.duration_mandatory = true; 5119 hw_req->req.duration = TICKS_2_USEC(dwell) / 1024; 5120 } 5121 5122 #ifdef __notyet__ 5123 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 5124 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 5125 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 5126 #endif 5127 eth_broadcast_addr(hw_req->req.bssid); 5128 5129 hw_req->req.n_channels = nchan; 5130 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 5131 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 5132 #ifdef LKPI_80211_USE_SCANLIST 5133 for (i = 0; i < nchan; i++) { 5134 *(cpp + i) = 5135 (struct linuxkpi_ieee80211_channel *)(lc + i); 5136 } 5137 /* Avoid net80211 scan lists until it has proper scan offload support. */ 5138 for (i = 0; i < nchan; i++) { 5139 struct ieee80211_channel *c; 5140 5141 c = ss->ss_chans[ss->ss_next + i]; 5142 lc->center_freq = c->ic_freq; /* XXX */ 5143 /* lc->flags */ 5144 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 5145 lc->max_power = c->ic_maxpower; 5146 /* lc-> ... */ 5147 lc++; 5148 } 5149 #else 5150 /* Add bands in reverse order for scanning. */ 5151 n = 0; 5152 for (band = NUM_NL80211_BANDS - 1; band >= 0; band--) { 5153 struct ieee80211_supported_band *supband; 5154 struct linuxkpi_ieee80211_channel *channels; 5155 5156 /* Band disabled for scanning? */ 5157 if ((band_mask & (1 << band)) == 0) 5158 continue; 5159 5160 /* Nothing to scan in band? */ 5161 supband = hw->wiphy->bands[band]; 5162 if (supband == NULL || supband->n_channels == 0) 5163 continue; 5164 5165 channels = supband->channels; 5166 for (i = 0; i < supband->n_channels; i++) { 5167 if (lkpi_scan_chan(&channels[i], ic, false)) 5168 *(cpp + n++) = &channels[i]; 5169 } 5170 } 5171 if (lkpi_order_scanlist) 5172 lkpi_scan_chan_list_resort(cpp, nchan); 5173 5174 if ((linuxkpi_debug_80211 & D80211_SCAN) != 0) { 5175 printf("%s:%d: %s SCAN Channel List (nchan=%zu): ", 5176 __func__, __LINE__, ic->ic_name, nchan); 5177 for (i = 0; i < nchan; i++) { 5178 struct linuxkpi_ieee80211_channel *xc; 5179 5180 xc = *(cpp + i); 5181 printf(" %d(%d)", 5182 ieee80211_mhz2ieee(xc->center_freq, 5183 lkpi_nl80211_band_to_net80211_band( 5184 xc->band)), 5185 xc->center_freq); 5186 } 5187 printf("\n"); 5188 } 5189 #endif 5190 5191 hw_req->req.n_ssids = ssid_count; 5192 if (hw_req->req.n_ssids > 0) { 5193 ssids = (struct cfg80211_ssid *)lc; 5194 hw_req->req.ssids = ssids; 5195 for (i = 0; i < ssid_count; i++) { 5196 ssids->ssid_len = ss->ss_ssid[i].len; 5197 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 5198 ss->ss_ssid[i].len); 5199 ssids++; 5200 } 5201 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 5202 } else { 5203 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 5204 } 5205 5206 /* 6GHz one day. */ 5207 hw_req->req.n_6ghz_params = 0; 5208 hw_req->req.scan_6ghz_params = NULL; 5209 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 5210 /* s6gp->... */ 5211 5212 ie = ieend = (uint8_t *)s6gp; 5213 /* Copy per-band IEs, copy common IEs */ 5214 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 5215 hw_req->req.ie = ie; 5216 hw_req->req.ie_len = ieend - ie; 5217 hw_req->req.scan_start = jiffies; 5218 5219 lvif = VAP_TO_LVIF(vap); 5220 vif = LVIF_TO_VIF(lvif); 5221 5222 LKPI_80211_LHW_SCAN_LOCK(lhw); 5223 /* Re-check under lock. */ 5224 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 5225 if (!running) { 5226 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 5227 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 5228 5229 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 5230 lhw->hw_req = hw_req; 5231 } 5232 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5233 if (running) { 5234 free(hw_req, M_LKPI80211); 5235 TRACE_SCAN(ic, "Trying to start new scan while still " 5236 "running (2); cancelling new net80211 scan; " 5237 "scan_flags %b", 5238 lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5239 ieee80211_cancel_scan(vap); 5240 return; 5241 } 5242 5243 wiphy_lock(hw->wiphy); 5244 lkpi_update_mcast_filter_locked(ic); 5245 TRACE_SCAN(ic, "Starting HW_SCAN: scan_flags %b, " 5246 "ie_len %d, n_ssids %d, n_chan %d, common_ie_len %d [%d, %d]", 5247 lhw->scan_flags, LKPI_LHW_SCAN_BITS, hw_req->req.ie_len, 5248 hw_req->req.n_ssids, hw_req->req.n_channels, 5249 hw_req->ies.common_ie_len, 5250 hw_req->ies.len[NL80211_BAND_2GHZ], 5251 hw_req->ies.len[NL80211_BAND_5GHZ]); 5252 5253 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 5254 wiphy_unlock(hw->wiphy); 5255 if (error != 0) { 5256 bool scan_done; 5257 int e; 5258 5259 TRACE_SCAN(ic, "hw_scan failed; scan_flags %b, error %d", 5260 lhw->scan_flags, LKPI_LHW_SCAN_BITS, error); 5261 ieee80211_cancel_scan(vap); 5262 5263 /* 5264 * ieee80211_scan_completed must be called in either 5265 * case of error or none. So let the free happen there 5266 * and only there. 5267 * That would be fine in theory but in practice drivers 5268 * behave differently: 5269 * ath10k does not return hw_scan until after scan_complete 5270 * and can then still return an error. 5271 * rtw88 can return 1 or -EBUSY without scan_complete 5272 * iwlwifi can return various errors before scan starts 5273 * ... 5274 * So we cannot rely on that behaviour and have to check 5275 * and balance between both code paths. 5276 */ 5277 e = 0; 5278 scan_done = true; 5279 LKPI_80211_LHW_SCAN_LOCK(lhw); 5280 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 5281 5282 free(lhw->hw_req, M_LKPI80211); 5283 lhw->hw_req = NULL; 5284 /* 5285 * The ieee80211_cancel_scan() above runs in a 5286 * taskq and it may take ages for the previous 5287 * scan to clear; starting a new one right away 5288 * we run into the problem that the old one is 5289 * still active. 5290 */ 5291 e = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz); 5292 scan_done = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 5293 5294 /* 5295 * Now we can clear running if no one else did. 5296 */ 5297 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 5298 } 5299 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5300 lkpi_update_mcast_filter(ic); 5301 if (!scan_done) { 5302 ic_printf(ic, "ERROR: %s: timeout/error to wait " 5303 "for ieee80211_cancel_scan: %d\n", __func__, e); 5304 return; 5305 } 5306 5307 /* 5308 * XXX-SIGH magic number. 5309 * rtw88 has a magic "return 1" if offloading scan is 5310 * not possible. Fall back to sw scan in that case. 5311 */ 5312 if (error == 1) { 5313 /* 5314 * We need to put this into some defered context 5315 * the net80211 scan may not be done yet 5316 * (ic_flags & IEEE80211_F_SCAN) and we cannot 5317 * wait here; if we do scan_curchan_task always 5318 * runs after our timeout to finalize the scan. 5319 */ 5320 ieee80211_runtask(ic, &lvif->sw_scan_task); 5321 return; 5322 } 5323 5324 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 5325 __func__, error); 5326 } 5327 } 5328 } 5329 5330 static void 5331 lkpi_sw_scan_task(void *arg, int pending __unused) 5332 { 5333 struct lkpi_hw *lhw; 5334 struct lkpi_vif *lvif; 5335 struct ieee80211vap *vap; 5336 struct ieee80211_scan_state *ss; 5337 5338 lvif = arg; 5339 vap = LVIF_TO_VAP(lvif); 5340 lhw = vap->iv_ic->ic_softc; 5341 ss = vap->iv_ic->ic_scan; 5342 5343 LKPI_80211_LHW_SCAN_LOCK(lhw); 5344 /* 5345 * We will re-enable this at scan_end calling lkpi_enable_hw_scan(). 5346 * IEEE80211_FEXT_SCAN_OFFLOAD will be cleared by lkpi_ic_scan_start. 5347 */ 5348 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 5349 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5350 5351 TRACE_SCAN(vap->iv_ic, "Triggering SW_SCAN: pending %d, scan_flags %b", 5352 pending, lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5353 5354 /* 5355 * This will call ic_scan_start() and we will get into the right path 5356 * unless other scans started in between. 5357 */ 5358 ieee80211_start_scan(vap, 5359 IEEE80211_SCAN_ONCE, 5360 msecs_to_ticks(10000), /* 10000 ms (=~ 50 chan * 200 ms) */ 5361 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 5362 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 5363 vap->iv_des_nssid, vap->iv_des_ssid); 5364 } 5365 5366 static void 5367 lkpi_ic_scan_end(struct ieee80211com *ic) 5368 { 5369 struct lkpi_hw *lhw; 5370 bool is_hw_scan; 5371 5372 lhw = ic->ic_softc; 5373 TRACE_SCAN(ic, "scan_flags %b", lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5374 5375 LKPI_80211_LHW_SCAN_LOCK(lhw); 5376 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 5377 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5378 return; 5379 } 5380 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5381 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5382 5383 if (!is_hw_scan) { 5384 struct ieee80211_scan_state *ss; 5385 struct ieee80211vap *vap; 5386 struct ieee80211_hw *hw; 5387 struct lkpi_vif *lvif; 5388 struct ieee80211_vif *vif; 5389 5390 ss = ic->ic_scan; 5391 vap = ss->ss_vap; 5392 hw = LHW_TO_HW(lhw); 5393 lvif = VAP_TO_LVIF(vap); 5394 vif = LVIF_TO_VIF(lvif); 5395 5396 lkpi_80211_mo_sw_scan_complete(hw, vif); 5397 5398 /* Send PS to stop buffering if n80211 does not for us? */ 5399 5400 if (vap->iv_state == IEEE80211_S_SCAN) { 5401 wiphy_lock(hw->wiphy); 5402 lkpi_hw_conf_idle(hw, true); 5403 wiphy_unlock(hw->wiphy); 5404 } 5405 } 5406 5407 /* 5408 * In case we disabled the hw_scan in lkpi_ic_scan_start() and 5409 * switched to swscan, re-enable hw_scan if available. 5410 */ 5411 lkpi_enable_hw_scan(lhw); 5412 5413 /* Clear the scanning chandef. */ 5414 memset(&lhw->scan_chandef, 0, sizeof(lhw->scan_chandef)); 5415 5416 LKPI_80211_LHW_SCAN_LOCK(lhw); 5417 wakeup(lhw); 5418 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5419 } 5420 5421 static void 5422 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 5423 unsigned long maxdwell) 5424 { 5425 struct lkpi_hw *lhw; 5426 bool is_hw_scan; 5427 5428 lhw = ss->ss_ic->ic_softc; 5429 TRACE_SCAN(ss->ss_ic, "scan_flags %b chan %d maxdwell %lu", 5430 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5431 ss->ss_ic->ic_curchan->ic_ieee, maxdwell); 5432 5433 LKPI_80211_LHW_SCAN_LOCK(lhw); 5434 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5435 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5436 if (!is_hw_scan) 5437 lhw->ic_scan_curchan(ss, maxdwell); 5438 } 5439 5440 static void 5441 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 5442 { 5443 struct lkpi_hw *lhw; 5444 bool is_hw_scan; 5445 5446 lhw = ss->ss_ic->ic_softc; 5447 TRACE_SCAN(ss->ss_ic, "scan_flags %b chan %d mindwell %lu", 5448 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5449 ss->ss_ic->ic_curchan->ic_ieee, ss->ss_mindwell); 5450 5451 LKPI_80211_LHW_SCAN_LOCK(lhw); 5452 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5453 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5454 if (!is_hw_scan) 5455 lhw->ic_scan_mindwell(ss); 5456 } 5457 5458 struct lkpi_ic_set_channel_iter_arg { 5459 struct linuxkpi_ieee80211_channel *chan; 5460 struct ieee80211_chanctx_conf *chanctx_conf; 5461 }; 5462 5463 static void 5464 lkpi_ic_set_channel_chanctx_iterf(struct ieee80211_hw *hw, 5465 struct ieee80211_chanctx_conf *chanctx_conf, void *arg) 5466 { 5467 struct lkpi_ic_set_channel_iter_arg *chanctx_iter_arg; 5468 5469 chanctx_iter_arg = arg; 5470 if (chanctx_iter_arg->chanctx_conf != NULL) 5471 return; 5472 5473 if (chanctx_iter_arg->chan == chanctx_conf->def.chan) 5474 chanctx_iter_arg->chanctx_conf = chanctx_conf; 5475 } 5476 5477 static void 5478 lkpi_ic_set_channel(struct ieee80211com *ic) 5479 { 5480 struct lkpi_hw *lhw; 5481 struct ieee80211_hw *hw; 5482 struct ieee80211_channel *c; 5483 struct linuxkpi_ieee80211_channel *chan; 5484 struct ieee80211_chanctx_conf *chanctx_conf; 5485 uint32_t changed; 5486 int error; 5487 bool hw_scan, scan_running; 5488 5489 IEEE80211_UNLOCK_ASSERT(ic); 5490 5491 lhw = ic->ic_softc; 5492 5493 c = ic->ic_curchan; 5494 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 5495 ic_printf(ic, "%s: Unset channel: c %p, ignoring update\n", 5496 __func__, c); 5497 return; 5498 } 5499 5500 chan = lkpi_find_lkpi80211_chan(lhw, c); 5501 if (chan == NULL) { 5502 ic_printf(ic, "%s: No channel found for c %p(%d) chan %p\n", 5503 __func__, c, c->ic_ieee, chan); 5504 return; 5505 } 5506 5507 /* 5508 * All net80211 callers call ieee80211_radiotap_chan_change(). 5509 * That means we have nothing to do ourselves. 5510 */ 5511 5512 /* If we have a hw_scan running do not switch channels. */ 5513 LKPI_80211_LHW_SCAN_LOCK(lhw); 5514 scan_running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 5515 hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5516 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5517 if (scan_running && hw_scan) { 5518 TRACE_SCAN(ic, "scan_flags %b chan %d nothing to do.", 5519 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5520 c->ic_ieee); 5521 /* Let us hope we set tx power levels elsewhere. */ 5522 return; 5523 } 5524 5525 hw = LHW_TO_HW(lhw); 5526 wiphy_lock(hw->wiphy); 5527 if (scan_running) { 5528 struct ieee80211vap *vap; 5529 struct lkpi_vif *lvif; 5530 struct ieee80211_vif *vif; 5531 5532 /* 5533 * For now and for scanning just pick the first VIF. 5534 * net80211 will need to grow DBDC/link_id support 5535 * for us to find the vif/chanctx otherwise. 5536 */ 5537 vap = TAILQ_FIRST(&ic->ic_vaps); 5538 lvif = VAP_TO_LVIF(vap); 5539 vif = LVIF_TO_VIF(lvif); 5540 5541 /* We always set the chandef to no-HT for scanning. */ 5542 cfg80211_chandef_create(&lhw->scan_chandef, chan, 5543 NL80211_CHAN_NO_HT); 5544 #ifdef LINUXKPI_DEBUG_80211 5545 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 5546 ic_printf(ic, "%s:%d: initialized lhw->scan_chandef\n", 5547 __func__, __LINE__); 5548 #endif 5549 5550 /* 5551 * This works for as long as we do not do BGSCANs; otherwise 5552 * it'll have to be offchan work. 5553 */ 5554 chanctx_conf = lkpi_get_chanctx_conf(hw, vif); 5555 changed = lkpi_init_chanctx_conf(hw, &lhw->scan_chandef, chanctx_conf); 5556 error = lkpi_set_chanctx_conf(hw, vif, chanctx_conf, changed, true); 5557 5558 TRACE_SCAN(ic, "scan_flags %b chan %d ???, error %d", 5559 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5560 c->ic_ieee, error); 5561 5562 IMPROVE("max power for scanning; TODO in lkpi_80211_update_chandef"); 5563 5564 } else if (lhw->emulate_chanctx) { 5565 /* 5566 * We do not set the channel here for normal chanctx operation. 5567 * That's just a setup to fail. scan_to_auth will setup all the 5568 * other neccessary options for this to work. 5569 */ 5570 struct lkpi_ic_set_channel_iter_arg chanctx_iter_arg = { 5571 .chan = chan, 5572 .chanctx_conf = NULL, 5573 }; 5574 struct cfg80211_chan_def chandef; 5575 5576 lkpi_init_chandef(ic, &chandef, chan, c, false); 5577 5578 ieee80211_iter_chan_contexts_mtx(hw, 5579 lkpi_ic_set_channel_chanctx_iterf, &chanctx_iter_arg); 5580 5581 if (chanctx_iter_arg.chanctx_conf == NULL) { 5582 /* No chanctx found for this channel. */ 5583 struct ieee80211vap *vap; 5584 struct lkpi_vif *lvif; 5585 struct ieee80211_vif *vif; 5586 5587 /* 5588 * For now just pick the first VIF. 5589 * net80211 will need to grow DBDC/link_id support 5590 * for us to find the vif/chanctx otherwise. 5591 */ 5592 vap = TAILQ_FIRST(&ic->ic_vaps); 5593 lvif = VAP_TO_LVIF(vap); 5594 vif = LVIF_TO_VIF(lvif); 5595 5596 #ifdef LINUXKPI_DEBUG_80211 5597 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 5598 ic_printf(ic, "%s:%d: using on stack chandef\n", 5599 __func__, __LINE__); 5600 #endif 5601 chanctx_conf = lkpi_get_chanctx_conf(hw, vif); 5602 changed = lkpi_init_chanctx_conf(hw, &chandef, chanctx_conf); 5603 IMPROVE("update HT, VHT, bw, ..."); 5604 error = lkpi_set_chanctx_conf(hw, vif, chanctx_conf, changed, true); 5605 5606 } else { 5607 /* 5608 * We know we are on the same channel. 5609 * Do we really have to reset everything? 5610 */ 5611 IMPROVE("update HT, VHT, bw, ..."); 5612 5613 #ifdef LINUXKPI_DEBUG_80211 5614 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 5615 ic_printf(ic, "%s:%d: using on stack chandef\n", 5616 __func__, __LINE__); 5617 #endif 5618 5619 chanctx_conf = chanctx_iter_arg.chanctx_conf; 5620 changed = lkpi_init_chanctx_conf(hw, &chandef, chanctx_conf); 5621 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 5622 } 5623 } 5624 5625 /* Currently PS is hard coded off! Not sure it belongs here. */ 5626 IMPROVE("PS"); 5627 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 5628 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 5629 hw->conf.flags &= ~IEEE80211_CONF_PS; 5630 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 5631 if (error != 0 && error != EOPNOTSUPP) 5632 ic_printf(ic, "ERROR: %s: config %#0x returned " 5633 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 5634 error); 5635 } 5636 5637 wiphy_unlock(hw->wiphy); 5638 } 5639 5640 static struct ieee80211_node * 5641 lkpi_ic_node_alloc(struct ieee80211vap *vap, 5642 const uint8_t mac[IEEE80211_ADDR_LEN]) 5643 { 5644 struct ieee80211com *ic; 5645 struct lkpi_hw *lhw; 5646 struct ieee80211_node *ni; 5647 struct ieee80211_hw *hw; 5648 struct lkpi_sta *lsta; 5649 5650 ic = vap->iv_ic; 5651 lhw = ic->ic_softc; 5652 5653 /* We keep allocations de-coupled so we can deal with the two worlds. */ 5654 if (lhw->ic_node_alloc == NULL) 5655 return (NULL); 5656 5657 ni = lhw->ic_node_alloc(vap, mac); 5658 if (ni == NULL) 5659 return (NULL); 5660 5661 hw = LHW_TO_HW(lhw); 5662 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 5663 if (lsta == NULL) { 5664 if (lhw->ic_node_free != NULL) 5665 lhw->ic_node_free(ni); 5666 return (NULL); 5667 } 5668 5669 return (ni); 5670 } 5671 5672 static int 5673 lkpi_ic_node_init(struct ieee80211_node *ni) 5674 { 5675 struct ieee80211com *ic; 5676 struct lkpi_hw *lhw; 5677 int error; 5678 5679 ic = ni->ni_ic; 5680 lhw = ic->ic_softc; 5681 5682 if (lhw->ic_node_init != NULL) { 5683 error = lhw->ic_node_init(ni); 5684 if (error != 0) 5685 return (error); 5686 } 5687 5688 /* XXX-BZ Sync other state over. */ 5689 IMPROVE(); 5690 5691 return (0); 5692 } 5693 5694 static void 5695 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 5696 { 5697 struct ieee80211com *ic; 5698 struct lkpi_hw *lhw; 5699 5700 ic = ni->ni_ic; 5701 lhw = ic->ic_softc; 5702 5703 /* XXX-BZ remove from driver, ... */ 5704 IMPROVE(); 5705 5706 if (lhw->ic_node_cleanup != NULL) 5707 lhw->ic_node_cleanup(ni); 5708 } 5709 5710 static void 5711 lkpi_ic_node_free(struct ieee80211_node *ni) 5712 { 5713 struct ieee80211com *ic; 5714 struct lkpi_hw *lhw; 5715 struct lkpi_sta *lsta; 5716 5717 ic = ni->ni_ic; 5718 lhw = ic->ic_softc; 5719 lsta = ni->ni_drv_data; 5720 5721 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 5722 5723 /* 5724 * Pass in the original ni just in case of error we could check that 5725 * it is the same as lsta->ni. 5726 */ 5727 lkpi_lsta_free(lsta, ni); 5728 5729 if (lhw->ic_node_free != NULL) 5730 lhw->ic_node_free(ni); 5731 } 5732 5733 /* 5734 * lkpi_xmit() called from both the (*ic_raw_xmit) as well as the (*ic_transmit) 5735 * call path. 5736 * Unfortunately they have slightly different invariants. See 5737 * ieee80211_raw_output() and ieee80211_parent_xmitpkt(). 5738 * Both take care of the ni reference in case of error, and otherwise during 5739 * the callback after transmit. 5740 * The difference is that in case of error (*ic_raw_xmit) needs us to release 5741 * the mbuf, while (*ic_transmit) will free the mbuf itself. 5742 */ 5743 static int 5744 lkpi_xmit(struct ieee80211_node *ni, struct mbuf *m, 5745 const struct ieee80211_bpf_params *params __unused, 5746 bool freem) 5747 { 5748 struct lkpi_sta *lsta; 5749 int error; 5750 5751 lsta = ni->ni_drv_data; 5752 LKPI_80211_LSTA_TXQ_LOCK(lsta); 5753 #if 0 5754 if (!lsta->added_to_drv || !lsta->txq_ready) { 5755 #else 5756 /* 5757 * Backout this part of 886653492945f which breaks rtw88 or 5758 * in general drivers without (*sta_state)() but only the 5759 * legacy fallback to (*sta_add)(). 5760 */ 5761 if (!lsta->txq_ready) { 5762 #endif 5763 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 5764 if (freem) 5765 m_freem(m); 5766 return (ENETDOWN); 5767 } 5768 5769 /* Queue the packet and enqueue the task to handle it. */ 5770 error = mbufq_enqueue(&lsta->txq, m); 5771 if (error != 0) { 5772 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 5773 if (freem) 5774 m_freem(m); 5775 #ifdef LINUXKPI_DEBUG_80211 5776 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5777 ic_printf(ni->ni_ic, "%s: mbufq_enqueue failed: %d\n", 5778 __func__, error); 5779 #endif 5780 return (ENETDOWN); 5781 } 5782 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 5783 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 5784 5785 #ifdef LINUXKPI_DEBUG_80211 5786 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5787 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 5788 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 5789 mbufq_len(&lsta->txq)); 5790 #endif 5791 5792 return (0); 5793 } 5794 5795 static int 5796 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 5797 const struct ieee80211_bpf_params *params __unused) 5798 { 5799 return (lkpi_xmit(ni, m, NULL, true)); 5800 } 5801 5802 #ifdef LKPI_80211_HW_CRYPTO 5803 /* 5804 * This is a bit of a hack given we know we are operating on a 5805 * single frame and we know that hardware will deal with it. 5806 * But otherwise the enmic bit and the encrypt bit need to be 5807 * decoupled. 5808 */ 5809 static int 5810 lkpi_hw_crypto_prepare_tkip(struct ieee80211_key *k, 5811 struct ieee80211_key_conf *kc, struct sk_buff *skb) 5812 { 5813 struct ieee80211_hdr *hdr; 5814 uint32_t hlen, hdrlen; 5815 uint8_t *p; 5816 5817 /* 5818 * TKIP only happens on data. 5819 */ 5820 hdr = (void *)skb->data; 5821 if (!ieee80211_is_data_present(hdr->frame_control)) 5822 return (0); 5823 5824 /* 5825 * "enmic" (though we do not do that). 5826 */ 5827 /* any conditions to not apply this? */ 5828 if (skb_tailroom(skb) < ieee80211_crypto_get_key_txmic_len(k)) 5829 return (ENOBUFS); 5830 5831 p = skb_put(skb, ieee80211_crypto_get_key_txmic_len(k)); 5832 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_MIC_SPACE) != 0) 5833 goto encrypt; 5834 5835 /* 5836 * (*enmic) which we hopefully do not have to do with hw accel. 5837 * That means if we make it here we have a problem. 5838 */ 5839 TODO("(*enmic)"); 5840 return (ENXIO); 5841 5842 encrypt: 5843 /* 5844 * "encrypt" (though we do not do that). 5845 */ 5846 /* 5847 * Check if we have anything to do as requested by driver 5848 * or if we are done? 5849 */ 5850 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) == 0 && 5851 (kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV) == 0) 5852 return (0); 5853 5854 hlen = k->wk_cipher->ic_header; 5855 if (skb_headroom(skb) < hlen) 5856 return (ENOBUFS); 5857 5858 hdr = (void *)skb->data; 5859 hdrlen = ieee80211_hdrlen(hdr->frame_control); 5860 p = skb_push(skb, hlen); 5861 memmove(p, p + hlen, hdrlen); 5862 5863 /* If driver request space only we are done. */ 5864 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) != 0) 5865 return (0); 5866 5867 p += hdrlen; 5868 k->wk_cipher->ic_setiv(k, p); 5869 5870 /* If we make it hear we do sw encryption. */ 5871 TODO("sw encrypt"); 5872 return (ENXIO); 5873 } 5874 5875 static int 5876 lkpi_hw_crypto_prepare_ccmp(struct ieee80211_key *k, 5877 struct ieee80211_key_conf *kc, struct sk_buff *skb) 5878 { 5879 struct ieee80211_hdr *hdr; 5880 uint32_t hlen, hdrlen; 5881 uint8_t *p; 5882 5883 hdr = (void *)skb->data; 5884 5885 /* 5886 * Check if we have anythig to do as requested by driver 5887 * or if we are done? 5888 */ 5889 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) == 0 && 5890 (kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV) == 0 && 5891 /* MFP */ 5892 !((kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV_MGMT) != 0 && 5893 ieee80211_is_mgmt(hdr->frame_control))) 5894 return (0); 5895 5896 hlen = k->wk_cipher->ic_header; 5897 if (skb_headroom(skb) < hlen) 5898 return (ENOBUFS); 5899 5900 hdrlen = ieee80211_hdrlen(hdr->frame_control); 5901 p = skb_push(skb, hlen); 5902 memmove(p, p + hlen, hdrlen); 5903 5904 /* If driver request space only we are done. */ 5905 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) != 0) 5906 return (0); 5907 5908 p += hdrlen; 5909 k->wk_cipher->ic_setiv(k, p); 5910 5911 return (0); 5912 } 5913 5914 static int 5915 lkpi_hw_crypto_prepare(struct lkpi_sta *lsta, struct ieee80211_key *k, 5916 struct sk_buff *skb) 5917 { 5918 struct ieee80211_tx_info *info; 5919 struct ieee80211_key_conf *kc; 5920 5921 KASSERT(lsta != NULL, ("%s: lsta is NULL", __func__)); 5922 KASSERT(k != NULL, ("%s: key is NULL", __func__)); 5923 KASSERT(skb != NULL, ("%s: skb is NULL", __func__)); 5924 5925 kc = lsta->kc[k->wk_keyix]; 5926 5927 info = IEEE80211_SKB_CB(skb); 5928 info->control.hw_key = kc; 5929 5930 /* MUST NOT happen. KASSERT? */ 5931 if (kc == NULL) { 5932 ic_printf(lsta->ni->ni_ic, "%s: lsta %p k %p skb %p, " 5933 "kc is NULL on hw crypto offload\n", __func__, lsta, k, skb); 5934 return (ENXIO); 5935 } 5936 5937 switch (kc->cipher) { 5938 case WLAN_CIPHER_SUITE_TKIP: 5939 return (lkpi_hw_crypto_prepare_tkip(k, kc, skb)); 5940 case WLAN_CIPHER_SUITE_CCMP: 5941 return (lkpi_hw_crypto_prepare_ccmp(k, kc, skb)); 5942 case WLAN_CIPHER_SUITE_GCMP: 5943 return (lkpi_hw_crypto_prepare_ccmp(k, kc, skb)); 5944 case WLAN_CIPHER_SUITE_WEP40: 5945 case WLAN_CIPHER_SUITE_WEP104: 5946 case WLAN_CIPHER_SUITE_CCMP_256: 5947 case WLAN_CIPHER_SUITE_GCMP_256: 5948 case WLAN_CIPHER_SUITE_AES_CMAC: 5949 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 5950 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 5951 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 5952 default: 5953 ic_printf(lsta->ni->ni_ic, "%s: lsta %p k %p kc %p skb %p, " 5954 "unsupported cipher suite %u (%s)\n", __func__, lsta, k, kc, 5955 skb, kc->cipher, lkpi_cipher_suite_to_name(kc->cipher)); 5956 return (EOPNOTSUPP); 5957 } 5958 } 5959 5960 static uint8_t 5961 lkpi_hw_crypto_tailroom(struct lkpi_sta *lsta, struct ieee80211_key *k) 5962 { 5963 struct ieee80211_key_conf *kc; 5964 5965 kc = lsta->kc[k->wk_keyix]; 5966 if (kc == NULL) 5967 return (0); 5968 5969 IMPROVE("which other flags need tailroom?"); 5970 if (kc->flags & (IEEE80211_KEY_FLAG_PUT_MIC_SPACE)) 5971 return (32); /* Large enough to hold everything and pow2. */ 5972 5973 return (0); 5974 } 5975 #endif 5976 5977 static void 5978 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 5979 { 5980 struct ieee80211_node *ni; 5981 struct ieee80211_frame *wh; 5982 struct ieee80211_key *k; 5983 struct sk_buff *skb; 5984 struct ieee80211com *ic; 5985 struct lkpi_hw *lhw; 5986 struct ieee80211_hw *hw; 5987 struct lkpi_vif *lvif; 5988 struct ieee80211_vif *vif; 5989 struct ieee80211_channel *c; 5990 struct ieee80211_tx_control control; 5991 struct ieee80211_tx_info *info; 5992 struct ieee80211_sta *sta; 5993 struct ieee80211_hdr *hdr; 5994 struct lkpi_txq *ltxq; 5995 void *buf; 5996 ieee80211_keyix keyix; 5997 uint8_t ac, tid, tailroom; 5998 5999 M_ASSERTPKTHDR(m); 6000 #ifdef LINUXKPI_DEBUG_80211 6001 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 6002 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 6003 #endif 6004 6005 ni = lsta->ni; 6006 ieee80211_output_seqno_assign(ni, -1, m); 6007 6008 k = NULL; 6009 keyix = IEEE80211_KEYIX_NONE; 6010 wh = mtod(m, struct ieee80211_frame *); 6011 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 6012 6013 #ifdef LKPI_80211_HW_CRYPTO 6014 if (lkpi_hwcrypto) { 6015 k = ieee80211_crypto_get_txkey(ni, m); 6016 if (k != NULL && lsta->kc[k->wk_keyix] != NULL) 6017 keyix = k->wk_keyix; 6018 } 6019 #endif 6020 6021 /* Encrypt the frame if need be. */ 6022 if (keyix == IEEE80211_KEYIX_NONE) { 6023 /* Retrieve key for TX && do software encryption. */ 6024 k = ieee80211_crypto_encap(ni, m); 6025 if (k == NULL) { 6026 ieee80211_free_node(ni); 6027 m_freem(m); 6028 return; 6029 } 6030 } 6031 } 6032 6033 ic = ni->ni_ic; 6034 lhw = ic->ic_softc; 6035 hw = LHW_TO_HW(lhw); 6036 c = ni->ni_chan; 6037 6038 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 6039 struct lkpi_radiotap_tx_hdr *rtap; 6040 6041 rtap = &lhw->rtap_tx; 6042 rtap->wt_flags = 0; 6043 if (k != NULL) 6044 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 6045 if (m->m_flags & M_FRAG) 6046 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 6047 IMPROVE(); 6048 rtap->wt_rate = 0; 6049 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 6050 rtap->wt_chan_freq = htole16(c->ic_freq); 6051 rtap->wt_chan_flags = htole16(c->ic_flags); 6052 } 6053 6054 ieee80211_radiotap_tx(ni->ni_vap, m); 6055 } 6056 6057 #ifdef LKPI_80211_HW_CRYPTO 6058 if (lkpi_hwcrypto && keyix != IEEE80211_KEYIX_NONE) 6059 tailroom = lkpi_hw_crypto_tailroom(lsta, k); 6060 else 6061 #endif 6062 tailroom = 0; 6063 6064 /* 6065 * net80211 should handle hw->extra_tx_headroom. 6066 * Though for as long as we are copying we don't mind. 6067 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 6068 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 6069 */ 6070 skb = dev_alloc_skb(hw->extra_tx_headroom + tailroom + m->m_pkthdr.len); 6071 if (skb == NULL) { 6072 static uint8_t skb_alloc_failures = 0; 6073 6074 if (skb_alloc_failures++ == 0) { 6075 int tid; 6076 6077 sta = LSTA_TO_STA(lsta); 6078 ic_printf(ic, "ERROR %s: skb alloc failed %d + %d, lsta %p sta %p ni %p\n", 6079 __func__, hw->extra_tx_headroom, m->m_pkthdr.len, lsta, sta, ni); 6080 for (tid = 0; tid < nitems(sta->txq); tid++) { 6081 if (sta->txq[tid] == NULL) 6082 continue; 6083 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 6084 ic_printf(ic, " tid %d ltxq %p flags %b skb_queue_len %u\n", 6085 tid, ltxq, ltxq->flags, LKPI_TXQ_FLAGS_BITS, skb_queue_len(<xq->skbq)); 6086 } 6087 } 6088 ieee80211_free_node(ni); 6089 m_freem(m); 6090 return; 6091 } 6092 skb_reserve(skb, hw->extra_tx_headroom); 6093 6094 /* XXX-BZ we need a SKB version understanding mbuf. */ 6095 /* Save the mbuf for ieee80211_tx_complete(). */ 6096 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 6097 skb->m = m; 6098 #if 0 6099 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 6100 #else 6101 buf = skb_put(skb, m->m_pkthdr.len); 6102 m_copydata(m, 0, m->m_pkthdr.len, buf); 6103 #endif 6104 /* Save the ni. */ 6105 m->m_pkthdr.PH_loc.ptr = ni; 6106 6107 lvif = VAP_TO_LVIF(ni->ni_vap); 6108 vif = LVIF_TO_VIF(lvif); 6109 6110 hdr = (void *)skb->data; 6111 tid = linuxkpi_ieee80211_get_tid(hdr, true); 6112 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 6113 if (!ieee80211_is_data(hdr->frame_control)) { 6114 /* MGMT and CTRL frames go on TID 7/VO. */ 6115 skb->priority = 7; 6116 ac = IEEE80211_AC_VO; 6117 } else { 6118 /* Other non-QOS traffic goes to BE. */ 6119 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 6120 skb->priority = 0; 6121 ac = IEEE80211_AC_BE; 6122 } 6123 } else { 6124 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 6125 ac = ieee80211e_up_to_ac[tid & 7]; 6126 } 6127 skb_set_queue_mapping(skb, ac); 6128 6129 info = IEEE80211_SKB_CB(skb); 6130 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 6131 /* Slight delay; probably only happens on scanning so fine? */ 6132 if (c == NULL || c == IEEE80211_CHAN_ANYC) 6133 c = ic->ic_curchan; 6134 info->band = lkpi_net80211_chan_to_nl80211_band(c); 6135 info->hw_queue = vif->hw_queue[ac]; 6136 if ((m->m_flags & M_EAPOL) != 0) { 6137 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 6138 info->flags |= IEEE80211_TX_CTL_USE_MINRATE; /* mt76 */ 6139 TRACE_RATES("M_EAPOL -> TX_CTL_USE_MINRATE"); 6140 } 6141 info->control.vif = vif; 6142 6143 /* IMPROVE("MLO"); */ 6144 info->control.flags |= 6145 u32_encode_bits(IEEE80211_LINK_UNSPECIFIED, IEEE80211_TX_CTRL_MLO_LINK); 6146 6147 if (tid != IEEE80211_NONQOS_TID) { 6148 struct ieee80211_tx_ampdu *tap; 6149 6150 tap = &ni->ni_tx_ampdu[tid]; 6151 if (ieee80211_is_data_qos(hdr->frame_control) && 6152 !ieee80211_is_qos_nullfunc(hdr->frame_control) && 6153 !is_multicast_ether_addr(hdr->addr1) && 6154 IEEE80211_AMPDU_RUNNING(tap)) 6155 info->flags |= IEEE80211_TX_CTL_AMPDU; 6156 } 6157 6158 /* XXX-BZ info->control.rates for non-HW rate control and injected packets. */ 6159 #ifdef __notyet__ 6160 #ifdef LKPI_80211_HT 6161 info->control.rts_cts_rate_idx= 6162 info->control.use_rts= /* RTS */ 6163 info->control.use_cts_prot= /* RTS/CTS*/ 6164 #endif 6165 #endif 6166 6167 sta = LSTA_TO_STA(lsta); 6168 #ifdef LKPI_80211_HW_CRYPTO 6169 if (lkpi_hwcrypto && keyix != IEEE80211_KEYIX_NONE) { 6170 int error; 6171 6172 error = lkpi_hw_crypto_prepare(lsta, k, skb); 6173 if (error != 0) { 6174 /* 6175 * We only have to free the skb which will free the 6176 * mbuf and release the reference on the ni. 6177 */ 6178 dev_kfree_skb(skb); 6179 return; 6180 } 6181 /* Reset header as data might have moved. */ 6182 hdr = (void *)skb->data; 6183 } 6184 #endif 6185 6186 IMPROVE(); 6187 6188 ltxq = NULL; 6189 if (!ieee80211_is_data_present(hdr->frame_control)) { 6190 if (vif->type == NL80211_IFTYPE_STATION && 6191 lsta->added_to_drv && 6192 sta->txq[IEEE80211_NUM_TIDS] != NULL) 6193 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 6194 } else if (lsta->added_to_drv && 6195 sta->txq[skb->priority] != NULL) { 6196 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 6197 } 6198 if (ltxq == NULL) 6199 goto ops_tx; 6200 6201 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 6202 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 6203 6204 LKPI_80211_LTXQ_LOCK(ltxq); 6205 skb_queue_tail(<xq->skbq, skb); 6206 ltxq->frms_enqueued++; 6207 #ifdef LINUXKPI_DEBUG_80211 6208 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 6209 printf("%s:%d mo_wake_tx_queue :: %d %lu lsta %p sta %p " 6210 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 6211 "WAKE_TX_Q ac %d prio %u qmap %u\n", 6212 __func__, __LINE__, 6213 curthread->td_tid, jiffies, 6214 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 6215 skb_queue_len(<xq->skbq), ltxq->txq.ac, 6216 ltxq->txq.tid, ac, skb->priority, skb->qmap); 6217 #endif 6218 LKPI_80211_LTXQ_UNLOCK(ltxq); 6219 wiphy_lock(hw->wiphy); 6220 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq, true); 6221 wiphy_unlock(hw->wiphy); 6222 return; 6223 6224 ops_tx: 6225 #ifdef LINUXKPI_DEBUG_80211 6226 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 6227 printf("%s:%d mo_tx :: lsta %p { added_to_drv %d } sta %p " 6228 "ni %p %6D skb %p TX ac %d prio %u qmap %u\n", 6229 __func__, __LINE__, lsta, lsta->added_to_drv, sta, 6230 ni, ni->ni_macaddr, ":", skb, ac, skb->priority, skb->qmap); 6231 #endif 6232 memset(&control, 0, sizeof(control)); 6233 if (lsta->added_to_drv) 6234 control.sta = sta; 6235 wiphy_lock(hw->wiphy); 6236 lkpi_80211_mo_tx(hw, &control, skb); 6237 lsta->frms_tx++; 6238 wiphy_unlock(hw->wiphy); 6239 } 6240 6241 static void 6242 lkpi_80211_txq_task(void *ctx, int pending) 6243 { 6244 struct lkpi_sta *lsta; 6245 struct mbufq mq; 6246 struct mbuf *m; 6247 bool shall_tx; 6248 6249 lsta = ctx; 6250 6251 #ifdef LINUXKPI_DEBUG_80211 6252 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 6253 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 6254 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 6255 pending, mbufq_len(&lsta->txq)); 6256 #endif 6257 6258 mbufq_init(&mq, IFQ_MAXLEN); 6259 6260 LKPI_80211_LSTA_TXQ_LOCK(lsta); 6261 /* 6262 * Do not re-check lsta->txq_ready here; we may have a pending 6263 * disassoc/deauth frame still. On the contrary if txq_ready is 6264 * false we do not have a valid sta anymore in the firmware so no 6265 * point to try to TX. 6266 * We also use txq_ready as a semaphore and will drain the txq manually 6267 * if needed on our way towards SCAN/INIT in the state machine. 6268 */ 6269 #if 0 6270 shall_tx = lsta->added_to_drv && lsta->txq_ready; 6271 #else 6272 /* 6273 * Backout this part of 886653492945f which breaks rtw88 or 6274 * in general drivers without (*sta_state)() but only the 6275 * legacy fallback to (*sta_add)(). 6276 */ 6277 shall_tx = lsta->txq_ready; 6278 #endif 6279 if (__predict_true(shall_tx)) 6280 mbufq_concat(&mq, &lsta->txq); 6281 /* 6282 * else a state change will push the packets out manually or 6283 * lkpi_lsta_free() will drain the lsta->txq and free the mbufs. 6284 */ 6285 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 6286 6287 m = mbufq_dequeue(&mq); 6288 while (m != NULL) { 6289 lkpi_80211_txq_tx_one(lsta, m); 6290 m = mbufq_dequeue(&mq); 6291 } 6292 } 6293 6294 static int 6295 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 6296 { 6297 6298 /* XXX TODO */ 6299 IMPROVE(); 6300 6301 /* Quick and dirty cheating hack. */ 6302 struct ieee80211_node *ni; 6303 6304 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 6305 return (lkpi_xmit(ni, m, NULL, false)); 6306 } 6307 6308 #ifdef LKPI_80211_HT 6309 static int 6310 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 6311 const uint8_t *frm, const uint8_t *efrm) 6312 { 6313 struct ieee80211com *ic; 6314 struct lkpi_hw *lhw; 6315 6316 ic = ni->ni_ic; 6317 lhw = ic->ic_softc; 6318 6319 TRACEOK("recv_action called"); 6320 6321 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 6322 } 6323 6324 static int 6325 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 6326 { 6327 struct ieee80211com *ic; 6328 struct lkpi_hw *lhw; 6329 6330 ic = ni->ni_ic; 6331 lhw = ic->ic_softc; 6332 6333 TRACEOK("send_action with action %d called", action); 6334 6335 return (lhw->ic_send_action(ni, category, action, sa)); 6336 } 6337 6338 6339 static int 6340 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 6341 { 6342 struct ieee80211com *ic; 6343 struct lkpi_hw *lhw; 6344 6345 ic = ni->ni_ic; 6346 lhw = ic->ic_softc; 6347 6348 TRACEOK("ieee80211_ampdu_enable called"); 6349 6350 return (lhw->ic_ampdu_enable(ni, tap)); 6351 } 6352 6353 /* 6354 * (*ic_addba_request)() is called by ieee80211_ampdu_request() before 6355 * calling send_action(CAT_BA, BA_ADDBA_REQUEST). 6356 * 6357 * NB: returns 0 on ERROR! 6358 */ 6359 static int 6360 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 6361 int dialogtoken, int baparamset, int batimeout) 6362 { 6363 struct ieee80211com *ic; 6364 struct lkpi_hw *lhw; 6365 struct ieee80211_hw *hw; 6366 struct ieee80211vap *vap; 6367 struct lkpi_vif *lvif; 6368 struct ieee80211_vif *vif; 6369 struct lkpi_sta *lsta; 6370 struct ieee80211_sta *sta; 6371 struct ieee80211_ampdu_params params = { }; 6372 int error; 6373 6374 ic = ni->ni_ic; 6375 lhw = ic->ic_softc; 6376 hw = LHW_TO_HW(lhw); 6377 vap = ni->ni_vap; 6378 lvif = VAP_TO_LVIF(vap); 6379 vif = LVIF_TO_VIF(lvif); 6380 lsta = ni->ni_drv_data; 6381 sta = LSTA_TO_STA(lsta); 6382 6383 TRACEOK("ADDBA REQ tid %u", tap->txa_tid); 6384 6385 if (!lsta->added_to_drv) { 6386 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6387 __func__, lsta, ni, sta); 6388 return (0); 6389 } 6390 6391 params.sta = sta; 6392 params.action = IEEE80211_AMPDU_TX_START; 6393 /* Keep 0 here! */ 6394 params.buf_size = 0; 6395 params.timeout = 0; 6396 params.ssn = tap->txa_start & (IEEE80211_SEQ_RANGE-1); 6397 params.tid = tap->txa_tid; 6398 params.amsdu = false; 6399 6400 /* We get called from if_transmit all the way up unlocked in net80211. */ 6401 IEEE80211_UNLOCK_ASSERT(ic); 6402 wiphy_lock(hw->wiphy); 6403 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6404 wiphy_unlock(hw->wiphy); 6405 if (error == IEEE80211_AMPDU_TX_START_IMMEDIATE) { 6406 ic_printf(ic, "%s: mo_ampdu_action returned AMPDU_TX_START_IMMEDIATE. " 6407 "ni %p tap %p\n", __func__, ni, tap); 6408 } else if (error != 0) { 6409 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 6410 __func__, error, ni, tap); 6411 return (0); 6412 } 6413 6414 if (sta->txq[tap->txa_tid] != NULL) { 6415 struct lkpi_txq *ltxq; 6416 6417 ltxq = TXQ_TO_LTXQ(sta->txq[tap->txa_tid]); 6418 TRACEOK("ADDBA REQ ltxq tid %u flags %b qlen %d", tap->txa_tid, 6419 ltxq->flags, LKPI_TXQ_FLAGS_BITS, skb_queue_len(<xq->skbq)); 6420 ltxq->flags |= LKPI_TXQ_STOPPED_BA; 6421 } 6422 6423 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 6424 } 6425 6426 /* 6427 * (*ic_addba_response)() is called from ht_recv_action_ba_addba_response() 6428 * and calls the default ieee80211_addba_response() which always returns 1. 6429 * 6430 * NB: No error checking in net80211! 6431 * Staying with 0 is an error. 6432 */ 6433 static int 6434 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 6435 int status, int baparamset, int batimeout) 6436 { 6437 struct ieee80211com *ic; 6438 struct lkpi_hw *lhw; 6439 struct ieee80211_hw *hw; 6440 struct ieee80211vap *vap; 6441 struct lkpi_vif *lvif; 6442 struct ieee80211_vif *vif; 6443 struct lkpi_sta *lsta; 6444 struct ieee80211_sta *sta; 6445 struct ieee80211_ampdu_params params = { }; 6446 int error; 6447 6448 ic = ni->ni_ic; 6449 lhw = ic->ic_softc; 6450 hw = LHW_TO_HW(lhw); 6451 vap = ni->ni_vap; 6452 lvif = VAP_TO_LVIF(vap); 6453 vif = LVIF_TO_VIF(lvif); 6454 lsta = ni->ni_drv_data; 6455 sta = LSTA_TO_STA(lsta); 6456 6457 TRACEOK("ADDBA RESP status %d (0 == SUCCESS) tid %u", status, tap->txa_tid); 6458 6459 if (!lsta->added_to_drv) { 6460 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6461 __func__, lsta, ni, sta); 6462 return (0); 6463 } 6464 6465 if (status == IEEE80211_STATUS_SUCCESS) { 6466 params.sta = sta; 6467 params.action = IEEE80211_AMPDU_TX_OPERATIONAL; 6468 params.buf_size = tap->txa_wnd; 6469 params.timeout = 0; 6470 params.ssn = 0; 6471 params.tid = tap->txa_tid; 6472 if ((tap->txa_flags & IEEE80211_AGGR_AMSDU) != 0) 6473 params.amsdu = true; 6474 else 6475 params.amsdu = false; 6476 } else { 6477 /* We need to free the allocated resources. */ 6478 params.sta = sta; 6479 switch (status) { 6480 /* params.action = FLUSH, FLUSH_CONT */ 6481 default: 6482 params.action = IEEE80211_AMPDU_TX_STOP_CONT; 6483 break; 6484 } 6485 params.buf_size = 0; 6486 params.timeout = 0; 6487 params.ssn = 0; 6488 params.tid = tap->txa_tid; 6489 params.amsdu = false; 6490 } 6491 6492 /* We are called all they way up from ieee80211_input* without lock. */ 6493 wiphy_lock(hw->wiphy); 6494 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6495 wiphy_unlock(hw->wiphy); 6496 if (error != 0) { 6497 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 6498 __func__, error, ni, tap); 6499 return (0); 6500 } 6501 6502 if (sta->txq[tap->txa_tid] != NULL) { 6503 struct lkpi_txq *ltxq; 6504 6505 ltxq = TXQ_TO_LTXQ(sta->txq[tap->txa_tid]); 6506 TRACEOK("ADDBA RESP ltxq tid %u flags %b qlen %d", tap->txa_tid, 6507 ltxq->flags, LKPI_TXQ_FLAGS_BITS, skb_queue_len(<xq->skbq)); 6508 ltxq->flags &= ~LKPI_TXQ_STOPPED_BA; 6509 6510 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tap->txa_tid], true); 6511 } 6512 6513 IMPROVE_HT("who unleashes the TXQ? and when?, do we need to ni->ni_txseqs[tid] = tap->txa_start & 0xfff;"); 6514 6515 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 6516 } 6517 6518 /* 6519 * (*ic_addba_stop)() is called from ampdu_tx_stop(), ht_recv_action_ba_delba(), 6520 * and ieee80211_ampdu_stop() and calls the default ieee80211_addba_stop(). 6521 */ 6522 static void 6523 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 6524 { 6525 struct ieee80211com *ic; 6526 struct lkpi_hw *lhw; 6527 struct ieee80211_hw *hw; 6528 struct ieee80211vap *vap; 6529 struct lkpi_vif *lvif; 6530 struct ieee80211_vif *vif; 6531 struct lkpi_sta *lsta; 6532 struct ieee80211_sta *sta; 6533 struct ieee80211_ampdu_params params = { }; 6534 int error; 6535 6536 ic = ni->ni_ic; 6537 lhw = ic->ic_softc; 6538 hw = LHW_TO_HW(lhw); 6539 vap = ni->ni_vap; 6540 lvif = VAP_TO_LVIF(vap); 6541 vif = LVIF_TO_VIF(lvif); 6542 lsta = ni->ni_drv_data; 6543 sta = LSTA_TO_STA(lsta); 6544 6545 if (!lsta->added_to_drv) { 6546 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6547 __func__, lsta, ni, sta); 6548 goto n80211; 6549 } 6550 6551 /* We need to free the allocated resources. */ 6552 params.sta = sta; 6553 IMPROVE("net80211 does not provide a reason to us"); 6554 params.action = IEEE80211_AMPDU_TX_STOP_CONT; /* params.action = FLUSH, FLUSH_CONT */ 6555 params.buf_size = 0; 6556 params.timeout = 0; 6557 params.ssn = 0; 6558 params.tid = tap->txa_tid; 6559 params.amsdu = false; 6560 6561 IEEE80211_UNLOCK(ic); 6562 wiphy_lock(hw->wiphy); 6563 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6564 wiphy_unlock(hw->wiphy); 6565 IEEE80211_LOCK(ic); 6566 if (error != 0) { 6567 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 6568 __func__, error, ni, tap); 6569 goto n80211; 6570 } 6571 6572 IMPROVE_HT("anyting else?"); 6573 6574 n80211: 6575 lhw->ic_addba_stop(ni, tap); 6576 } 6577 6578 static void 6579 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 6580 { 6581 struct ieee80211com *ic; 6582 struct lkpi_hw *lhw; 6583 struct lkpi_sta *lsta; 6584 struct ieee80211_sta *sta; 6585 6586 ic = ni->ni_ic; 6587 lhw = ic->ic_softc; 6588 lsta = ni->ni_drv_data; 6589 sta = LSTA_TO_STA(lsta); 6590 6591 TRACEOK("ADDBA RESP TIMEO tid %u", tap->txa_tid); 6592 6593 IMPROVE_HT(); 6594 6595 if (!lsta->added_to_drv) { 6596 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6597 __func__, lsta, ni, sta); 6598 goto n80211; 6599 } 6600 6601 /* We need to re-enable the txq and get packets out. */ 6602 if (sta->txq[tap->txa_tid] != NULL) { 6603 struct lkpi_txq *ltxq; 6604 struct ieee80211_hw *hw; 6605 6606 ltxq = TXQ_TO_LTXQ(sta->txq[tap->txa_tid]); 6607 TRACEOK("ADDBA RESP TIMEO ltxq tid %u flags %b qlen %d", 6608 tap->txa_tid, ltxq->flags, LKPI_TXQ_FLAGS_BITS, 6609 skb_queue_len(<xq->skbq)); 6610 ltxq->flags &= ~LKPI_TXQ_STOPPED_BA; 6611 6612 hw = LHW_TO_HW(lhw); 6613 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tap->txa_tid], true); 6614 } 6615 6616 n80211: 6617 lhw->ic_addba_response_timeout(ni, tap); 6618 } 6619 6620 static void 6621 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 6622 int status) 6623 { 6624 struct ieee80211com *ic; 6625 struct lkpi_hw *lhw; 6626 6627 ic = ni->ni_ic; 6628 lhw = ic->ic_softc; 6629 6630 IMPROVE_HT(); 6631 6632 lhw->ic_bar_response(ni, tap, status); 6633 } 6634 6635 static int 6636 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 6637 int baparamset, int batimeout, int baseqctl) 6638 { 6639 struct ieee80211com *ic; 6640 struct lkpi_hw *lhw; 6641 struct ieee80211_hw *hw; 6642 struct ieee80211vap *vap; 6643 struct lkpi_vif *lvif; 6644 struct ieee80211_vif *vif; 6645 struct lkpi_sta *lsta; 6646 struct ieee80211_sta *sta; 6647 struct ieee80211_ampdu_params params = { }; 6648 int error; 6649 6650 ic = ni->ni_ic; 6651 lhw = ic->ic_softc; 6652 hw = LHW_TO_HW(lhw); 6653 vap = ni->ni_vap; 6654 lvif = VAP_TO_LVIF(vap); 6655 vif = LVIF_TO_VIF(lvif); 6656 lsta = ni->ni_drv_data; 6657 sta = LSTA_TO_STA(lsta); 6658 6659 IEEE80211_UNLOCK_ASSERT(ic); 6660 6661 if (!lsta->added_to_drv) { 6662 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p not added to firmware\n", 6663 __func__, lsta, ni, vap, sta); 6664 return (-ENXIO); 6665 } 6666 6667 if (lsta->state != IEEE80211_STA_AUTHORIZED) { 6668 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p state %d not AUTHORIZED\n", 6669 __func__, lsta, ni, vap, sta, lsta->state); 6670 return (-ENXIO); 6671 } 6672 6673 params.sta = sta; 6674 params.action = IEEE80211_AMPDU_RX_START; 6675 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 6676 if (params.buf_size == 0) 6677 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 6678 else 6679 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 6680 if (hw->max_rx_aggregation_subframes > 0 && 6681 params.buf_size > hw->max_rx_aggregation_subframes) 6682 params.buf_size = hw->max_rx_aggregation_subframes; 6683 params.timeout = le16toh(batimeout); 6684 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 6685 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 6686 6687 /* Based on net80211::ampdu_rx_start(). */ 6688 if ((vap->iv_htcaps & IEEE80211_HTC_RX_AMSDU_AMPDU) && 6689 (_IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_AMSDU))) 6690 params.amsdu = true; 6691 else 6692 params.amsdu = false; 6693 6694 wiphy_lock(hw->wiphy); 6695 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6696 wiphy_unlock(hw->wiphy); 6697 if (error != 0) { 6698 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 6699 __func__, error, ni, rap); 6700 return (error); 6701 } 6702 6703 if (!ieee80211_hw_check(hw, SUPPORTS_REORDERING_BUFFER)) { 6704 IMPROVE("%s: TODO: SUPPORTS_REORDERING_BUFFER not set; check net80211\n", __func__); 6705 } 6706 6707 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 6708 6709 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 6710 return (error); 6711 } 6712 6713 static void 6714 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 6715 { 6716 struct ieee80211com *ic; 6717 struct lkpi_hw *lhw; 6718 struct ieee80211_hw *hw; 6719 struct ieee80211vap *vap; 6720 struct lkpi_vif *lvif; 6721 struct ieee80211_vif *vif; 6722 struct lkpi_sta *lsta; 6723 struct ieee80211_sta *sta; 6724 struct ieee80211_ampdu_params params = { }; 6725 int error; 6726 uint8_t tid; 6727 bool ic_locked; 6728 6729 ic = ni->ni_ic; 6730 lhw = ic->ic_softc; 6731 6732 /* 6733 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 6734 * we did not START. Some drivers pass it down to firmware which will 6735 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 6736 * ieee80211_ht_node_init() amongst others which will iterate over all 6737 * tid and call ic_ampdu_rx_stop() unconditionally. 6738 * XXX net80211 should probably be more "gentle" in these cases and 6739 * track some state itself. 6740 */ 6741 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 6742 goto net80211_only; 6743 6744 hw = LHW_TO_HW(lhw); 6745 vap = ni->ni_vap; 6746 lvif = VAP_TO_LVIF(vap); 6747 vif = LVIF_TO_VIF(lvif); 6748 lsta = ni->ni_drv_data; 6749 if (lsta == NULL) { 6750 ic_printf(ic, "%s: lsta %p ni %p vap %p, lsta is NULL\n", 6751 __func__, lsta, ni, vap); 6752 goto net80211_only; 6753 } 6754 sta = LSTA_TO_STA(lsta); 6755 6756 if (!lsta->added_to_drv) { 6757 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p not added to firmware\n", 6758 __func__, lsta, ni, vap, sta); 6759 goto net80211_only; 6760 } 6761 6762 if (lsta->state != IEEE80211_STA_AUTHORIZED) { 6763 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p state %d not AUTHORIZED\n", 6764 __func__, lsta, ni, vap, sta, lsta->state); 6765 goto net80211_only; 6766 } 6767 6768 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 6769 for (tid = 0; tid < WME_NUM_TID; tid++) { 6770 if (&ni->ni_rx_ampdu[tid] == rap) 6771 break; 6772 } 6773 if (tid == WME_NUM_TID) { 6774 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p TID not found\n", 6775 __func__, lsta, ni, vap, sta); 6776 goto net80211_only; 6777 } 6778 6779 params.sta = sta; 6780 params.action = IEEE80211_AMPDU_RX_STOP; 6781 params.buf_size = 0; 6782 params.timeout = 0; 6783 params.ssn = 0; 6784 params.tid = tid; 6785 params.amsdu = false; 6786 6787 ic_locked = IEEE80211_IS_LOCKED(ic); 6788 if (ic_locked) 6789 IEEE80211_UNLOCK(ic); 6790 wiphy_lock(hw->wiphy); 6791 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6792 wiphy_unlock(hw->wiphy); 6793 if (ic_locked) 6794 IEEE80211_LOCK(ic); 6795 if (error != 0) 6796 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 6797 __func__, error, ni, rap); 6798 6799 net80211_only: 6800 lhw->ic_ampdu_rx_stop(ni, rap); 6801 } 6802 #endif 6803 6804 int 6805 linuxkpi_ieee80211_start_tx_ba_session(struct ieee80211_sta *sta, uint8_t tid, 6806 int timeout) 6807 { 6808 struct lkpi_sta *lsta; 6809 struct ieee80211_hw *hw; 6810 struct lkpi_hw *lhw; 6811 struct ieee80211_tx_ampdu *tap; 6812 int worked; 6813 6814 lsta = STA_TO_LSTA(sta); 6815 6816 /* If tid is out of range, fail gracefully. */ 6817 /* XXX-BZ are we limited to 8? */ 6818 if (tid >= IEEE80211_NUM_TIDS) { 6819 net80211_vap_printf(lsta->ni->ni_vap, "%s: tid %u out of range " 6820 ">= %u\n", __func__, tid, IEEE80211_NUM_TIDS); 6821 return (-EINVAL); 6822 } 6823 6824 hw = lsta->hw; 6825 lhw = HW_TO_LHW(hw); 6826 6827 /* No ampdu_action support, just error. */ 6828 if (lhw->ops->ampdu_action == NULL) { 6829 net80211_vap_printf(lsta->ni->ni_vap, "%s: (*ampdu_action) " 6830 "not supported\n", __func__); 6831 return (-ENOTSUPP); 6832 } 6833 6834 /* Does HW allow us to set this up? */ 6835 if (!ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { 6836 net80211_vap_printf(lsta->ni->ni_vap, "%s: !AMPDU_AGGREGATION\n", 6837 __func__); 6838 return (-ENOTSUPP); 6839 } 6840 if (ieee80211_hw_check(hw, TX_AMPDU_SETUP_IN_HW)) { 6841 net80211_vap_printf(lsta->ni->ni_vap, "%s: TX_AMPDU_SETUP_IN_HW\n", 6842 __func__); 6843 return (-EPERM); 6844 } 6845 6846 /* We need at least HT or higher support enabled. */ 6847 if (!sta->deflink.ht_cap.ht_supported && 6848 !sta->deflink.vht_cap.vht_supported && 6849 !sta->deflink.he_cap.has_he && 6850 !sta->deflink.eht_cap.has_eht) { 6851 net80211_vap_printf(lsta->ni->ni_vap, "%s: HT or later not " 6852 "supported\n", __func__); 6853 return (-EINVAL); 6854 } 6855 6856 #ifdef __notyet__ 6857 /* 6858 * We need some rate limiting/disabling in case we try too hard and 6859 * get NACKed over and over. 6860 * XXX-BZ This check should likely go to addba_req along with a counter. 6861 */ 6862 if (lsta->block_ba) 6863 return (-EACCESS); 6864 #endif 6865 6866 /* XXX-BZ locking? */ 6867 6868 /* Do we have a running session already? */ 6869 tap = &lsta->ni->ni_tx_ampdu[tid]; 6870 if (IEEE80211_AMPDU_REQUESTED(tap)) { 6871 net80211_vap_printf(lsta->ni->ni_vap, "%s: " 6872 "AMPDU requested/running\n", __func__); 6873 return (-EINPROGRESS); 6874 } 6875 6876 /* Tell net80211 to setup an aggr sessions. */ 6877 /* XXX-BZ we have no way to carry the timeout forward easily. */ 6878 worked = ieee80211_ampdu_tx_request_ext(lsta->ni, tid); 6879 TRACEOK("ieee80211_ampdu_tx_request_ext %d", worked); 6880 6881 if (worked != 1) { 6882 net80211_vap_printf(lsta->ni->ni_vap, "%s: " 6883 "ieee80211_ampdu_tx_request_ext returned %d != 1\n", 6884 __func__, worked); 6885 return (-EINVAL); 6886 } 6887 6888 /* 6889 * How do we make sure the EAPOL handshake has completed? 6890 * Let ieee80211_output do it. 6891 */ 6892 if (1) { 6893 /* Immediately trigger the setup and output of the action frame. */ 6894 worked = ieee80211_ampdu_request(lsta->ni, tap); 6895 if (worked != 1) { 6896 net80211_vap_printf(lsta->ni->ni_vap, "%s: " 6897 "ieee80211_ampdu_request returned %d != 1\n", 6898 __func__, worked); 6899 return (-EAGAIN); 6900 } 6901 } 6902 6903 return (0); 6904 } 6905 6906 static void 6907 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 6908 uint8_t *bands, int *chan_flags, enum nl80211_band band) 6909 { 6910 #ifdef LKPI_80211_HT 6911 struct ieee80211_sta_ht_cap *ht_cap; 6912 6913 ht_cap = &hw->wiphy->bands[band]->ht_cap; 6914 if (!ht_cap->ht_supported) 6915 return; 6916 6917 switch (band) { 6918 case NL80211_BAND_2GHZ: 6919 setbit(bands, IEEE80211_MODE_11NG); 6920 break; 6921 case NL80211_BAND_5GHZ: 6922 setbit(bands, IEEE80211_MODE_11NA); 6923 break; 6924 default: 6925 IMPROVE("Unsupported band %d", band); 6926 return; 6927 } 6928 6929 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 6930 6931 /* 6932 * Rather than manually checking each flag and 6933 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 6934 * simply copy the 16bits. 6935 */ 6936 ic->ic_htcaps |= ht_cap->cap; 6937 6938 /* Then deal with the other flags. */ 6939 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 6940 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 6941 #ifdef __notyet__ 6942 if (ieee80211_hw_check(hw, TX_AMSDU)) 6943 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 6944 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 6945 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 6946 IEEE80211_HTC_TX_AMSDU_AMPDU); 6947 #endif 6948 6949 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 6950 6951 /* Only add HT40 channels if supported. */ 6952 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 6953 chan_flags != NULL) 6954 *chan_flags |= NET80211_CBW_FLAG_HT40; 6955 #endif 6956 } 6957 6958 static void 6959 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 6960 int *n, struct ieee80211_channel *c) 6961 { 6962 struct lkpi_hw *lhw; 6963 struct ieee80211_hw *hw; 6964 struct linuxkpi_ieee80211_channel *channels; 6965 uint8_t bands[IEEE80211_MODE_BYTES]; 6966 int chan_flags, error, i, nchans; 6967 6968 /* Channels */ 6969 lhw = ic->ic_softc; 6970 hw = LHW_TO_HW(lhw); 6971 6972 /* NL80211_BAND_2GHZ */ 6973 nchans = 0; 6974 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 6975 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 6976 if (nchans > 0) { 6977 struct ieee80211_supported_band *supband; 6978 6979 memset(bands, 0, sizeof(bands)); 6980 chan_flags = 0; 6981 setbit(bands, IEEE80211_MODE_11B); 6982 6983 /* Check for 11g (simplified). */ 6984 supband = hw->wiphy->bands[NL80211_BAND_2GHZ]; 6985 for (i = 0; i < supband->n_bitrates; i++) { 6986 if ((supband->bitrates[i].flags & 6987 IEEE80211_RATE_MANDATORY_G) != 0) { 6988 setbit(bands, IEEE80211_MODE_11G); 6989 break; 6990 } 6991 } 6992 6993 IMPROVE("the bitrates may have flags?"); 6994 6995 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 6996 NL80211_BAND_2GHZ); 6997 6998 channels = supband->channels; 6999 for (i = 0; i < nchans && *n < maxchan; i++) { 7000 uint32_t nflags = 0; 7001 int cflags = chan_flags; 7002 7003 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 7004 ic_printf(ic, "%s: Skipping disabled chan " 7005 "[%u/%u/%#x]\n", __func__, 7006 channels[i].hw_value, 7007 channels[i].center_freq, channels[i].flags); 7008 continue; 7009 } 7010 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 7011 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 7012 if (channels[i].flags & IEEE80211_CHAN_RADAR) 7013 nflags |= IEEE80211_CHAN_DFS; 7014 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 7015 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 7016 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 7017 cflags &= ~NET80211_CBW_FLAG_VHT80; 7018 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 7019 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 7020 cflags &= ~NET80211_CBW_FLAG_HT40; 7021 7022 error = ieee80211_add_channel_cbw(c, maxchan, n, 7023 ieee80211_mhz2ieee(channels[i].center_freq, 7024 lkpi_nl80211_band_to_net80211_band(channels[i].band)), 7025 channels[i].center_freq, channels[i].max_power, 7026 nflags, bands, cflags); 7027 /* net80211::ENOBUFS: *n >= maxchans */ 7028 if (error != 0 && error != ENOBUFS) 7029 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 7030 "returned error %d\n", 7031 __func__, channels[i].hw_value, 7032 channels[i].center_freq, channels[i].flags, 7033 nflags, chan_flags, cflags, error); 7034 if (error != 0) 7035 break; 7036 } 7037 } 7038 7039 /* NL80211_BAND_5GHZ */ 7040 nchans = 0; 7041 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 7042 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 7043 if (nchans > 0) { 7044 memset(bands, 0, sizeof(bands)); 7045 chan_flags = 0; 7046 setbit(bands, IEEE80211_MODE_11A); 7047 7048 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 7049 NL80211_BAND_5GHZ); 7050 7051 #ifdef LKPI_80211_VHT 7052 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported) { 7053 7054 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 7055 ic->ic_vht_cap.vht_cap_info = 7056 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 7057 ic->ic_vht_cap.supp_mcs = 7058 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_mcs; 7059 7060 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 7061 chan_flags |= NET80211_CBW_FLAG_VHT80; 7062 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 7063 ic->ic_vht_cap.vht_cap_info)) 7064 chan_flags |= NET80211_CBW_FLAG_VHT160; 7065 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 7066 ic->ic_vht_cap.vht_cap_info)) 7067 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 7068 } 7069 #endif 7070 7071 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 7072 for (i = 0; i < nchans && *n < maxchan; i++) { 7073 uint32_t nflags = 0; 7074 int cflags = chan_flags; 7075 7076 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 7077 ic_printf(ic, "%s: Skipping disabled chan " 7078 "[%u/%u/%#x]\n", __func__, 7079 channels[i].hw_value, 7080 channels[i].center_freq, channels[i].flags); 7081 continue; 7082 } 7083 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 7084 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 7085 if (channels[i].flags & IEEE80211_CHAN_RADAR) 7086 nflags |= IEEE80211_CHAN_DFS; 7087 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 7088 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 7089 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 7090 cflags &= ~NET80211_CBW_FLAG_VHT80; 7091 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 7092 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 7093 cflags &= ~NET80211_CBW_FLAG_HT40; 7094 7095 error = ieee80211_add_channel_cbw(c, maxchan, n, 7096 ieee80211_mhz2ieee(channels[i].center_freq, 7097 lkpi_nl80211_band_to_net80211_band(channels[i].band)), 7098 channels[i].center_freq, channels[i].max_power, 7099 nflags, bands, cflags); 7100 /* net80211::ENOBUFS: *n >= maxchans */ 7101 if (error != 0 && error != ENOBUFS) 7102 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 7103 "returned error %d\n", 7104 __func__, channels[i].hw_value, 7105 channels[i].center_freq, channels[i].flags, 7106 nflags, chan_flags, cflags, error); 7107 if (error != 0) 7108 break; 7109 } 7110 } 7111 } 7112 7113 static void * 7114 lkpi_ieee80211_ifalloc(void) 7115 { 7116 struct ieee80211com *ic; 7117 7118 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 7119 7120 /* Setting these happens later when we have device information. */ 7121 ic->ic_softc = NULL; 7122 ic->ic_name = "linuxkpi"; 7123 7124 return (ic); 7125 } 7126 7127 struct ieee80211_hw * 7128 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 7129 { 7130 struct ieee80211_hw *hw; 7131 struct lkpi_hw *lhw; 7132 struct wiphy *wiphy; 7133 int ac; 7134 bool emuchanctx; 7135 7136 /* 7137 * Do certain checks before starting to allocate resources. 7138 * Store results in temporary variables. 7139 */ 7140 7141 /* ac1d519c01ca introduced emulating chanctx changes. */ 7142 emuchanctx = false; 7143 if (ops->add_chanctx == ieee80211_emulate_add_chanctx && 7144 ops->change_chanctx == ieee80211_emulate_change_chanctx && 7145 ops->remove_chanctx == ieee80211_emulate_remove_chanctx) { 7146 /* 7147 * If we emulate the chanctx ops, we must not have 7148 * assign_vif_chanctx and unassign_vif_chanctx. 7149 */ 7150 if (ops->assign_vif_chanctx != NULL || 7151 ops->unassign_vif_chanctx != NULL) { 7152 /* Fail gracefully. */ 7153 printf("%s: emulate_chanctx but " 7154 "assign_vif_chanctx %p != NULL || " 7155 "unassign_vif_chanctx %p != NULL\n", __func__, 7156 ops->assign_vif_chanctx, ops->unassign_vif_chanctx); 7157 return (NULL); 7158 } 7159 emuchanctx = true; 7160 } 7161 if (!emuchanctx && (ops->add_chanctx == ieee80211_emulate_add_chanctx || 7162 ops->change_chanctx == ieee80211_emulate_change_chanctx || 7163 ops->remove_chanctx == ieee80211_emulate_remove_chanctx)) { 7164 printf("%s: not emulating chanctx changes but emulating " 7165 "function set: %d/%d/%d\n", __func__, 7166 ops->add_chanctx == ieee80211_emulate_add_chanctx, 7167 ops->change_chanctx == ieee80211_emulate_change_chanctx, 7168 ops->remove_chanctx == ieee80211_emulate_remove_chanctx); 7169 return (NULL); 7170 } 7171 if (!emuchanctx && (ops->add_chanctx == NULL || ops->change_chanctx == NULL || 7172 ops->remove_chanctx == NULL || ops->assign_vif_chanctx == NULL || 7173 ops->unassign_vif_chanctx == NULL)) { 7174 printf("%s: not all functions set for chanctx operations " 7175 "(emulating chanctx %d): %p/%p/%p %p/%p\n", 7176 __func__, emuchanctx, 7177 ops->add_chanctx, ops->change_chanctx, ops->remove_chanctx, 7178 ops->assign_vif_chanctx, ops->unassign_vif_chanctx); 7179 return (NULL); 7180 } 7181 7182 /* Get us and the driver data also allocated. */ 7183 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 7184 if (wiphy == NULL) 7185 return (NULL); 7186 7187 lhw = wiphy_priv(wiphy); 7188 lhw->ops = ops; 7189 7190 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 7191 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 7192 spin_lock_init(&lhw->txq_lock); 7193 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 7194 LKPI_80211_LHW_MC_LOCK_INIT(lhw); 7195 TAILQ_INIT(&lhw->lvif_head); 7196 __hw_addr_init(&lhw->mc_list); 7197 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 7198 spin_lock_init(&lhw->txq_scheduled_lock[ac]); 7199 lhw->txq_generation[ac] = 1; 7200 TAILQ_INIT(&lhw->txq_scheduled[ac]); 7201 } 7202 7203 /* Chanctx_conf */ 7204 INIT_LIST_HEAD(&lhw->lchanctx_list); 7205 INIT_LIST_HEAD(&lhw->lchanctx_list_reserved); 7206 lhw->emulate_chanctx = emuchanctx; 7207 7208 /* Deferred RX path. */ 7209 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 7210 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 7211 mbufq_init(&lhw->rxq, 32 * NAPI_POLL_WEIGHT); 7212 lhw->rxq_stopped = false; 7213 7214 /* 7215 * XXX-BZ TODO make sure there is a "_null" function to all ops 7216 * not initialized. 7217 */ 7218 hw = LHW_TO_HW(lhw); 7219 hw->wiphy = wiphy; 7220 hw->conf.flags |= IEEE80211_CONF_IDLE; 7221 hw->priv = (void *)(lhw + 1); 7222 7223 /* BSD Specific. */ 7224 lhw->ic = lkpi_ieee80211_ifalloc(); 7225 7226 if (lhw->emulate_chanctx) 7227 ic_printf(lhw->ic, "Using chanctx emulation.\n"); 7228 IMPROVE(); 7229 7230 return (hw); 7231 } 7232 7233 void 7234 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 7235 { 7236 struct lkpi_hw *lhw; 7237 struct mbuf *m; 7238 int ac; 7239 7240 lhw = HW_TO_LHW(hw); 7241 free(lhw->ic, M_LKPI80211); 7242 lhw->ic = NULL; 7243 7244 /* 7245 * Drain the deferred RX path. 7246 */ 7247 LKPI_80211_LHW_RXQ_LOCK(lhw); 7248 lhw->rxq_stopped = true; 7249 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 7250 7251 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 7252 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 7253 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 7254 7255 /* Flush mbufq (make sure to release ni refs!). */ 7256 m = mbufq_dequeue(&lhw->rxq); 7257 while (m != NULL) { 7258 #ifdef LKPI_80211_USE_MTAG 7259 struct m_tag *mtag; 7260 7261 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 7262 if (mtag != NULL) { 7263 struct lkpi_80211_tag_rxni *rxni; 7264 7265 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 7266 ieee80211_free_node(rxni->ni); 7267 } 7268 #else 7269 if (m->m_pkthdr.PH_loc.ptr != NULL) { 7270 struct ieee80211_node *ni; 7271 7272 ni = m->m_pkthdr.PH_loc.ptr; 7273 ieee80211_free_node(ni); 7274 } 7275 #endif 7276 m_freem(m); 7277 m = mbufq_dequeue(&lhw->rxq); 7278 } 7279 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 7280 __func__, lhw, mbufq_len(&lhw->rxq))); 7281 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 7282 7283 wiphy_lock(hw->wiphy); 7284 /* Chanctx_conf. */ 7285 if (!list_empty_careful(&lhw->lchanctx_list)) { 7286 struct lkpi_chanctx *lchanctx, *next; 7287 struct ieee80211_chanctx_conf *chanctx_conf; 7288 7289 list_for_each_entry_safe(lchanctx, next, &lhw->lchanctx_list, entry) { 7290 if (lchanctx->added_to_drv) { 7291 /* In reality we should panic? */ 7292 chanctx_conf = &lchanctx->chanctx_conf; 7293 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 7294 } 7295 list_del(&lchanctx->entry); 7296 /* No need to reset the lchanctx here as we will free it below. */ 7297 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list_reserved); 7298 } 7299 } 7300 if (!list_empty_careful(&lhw->lchanctx_list_reserved)) { 7301 struct lkpi_chanctx *lchanctx, *next; 7302 7303 list_for_each_entry_safe(lchanctx, next, &lhw->lchanctx_list_reserved, entry) { 7304 list_del(&lchanctx->entry); 7305 if (lchanctx->added_to_drv) 7306 panic("%s: lchanctx %p on reserved list still added_to_drv\n", 7307 __func__, lchanctx); 7308 free(lchanctx, M_LKPI80211); 7309 } 7310 } 7311 wiphy_unlock(hw->wiphy); 7312 7313 LKPI_80211_LHW_MC_LOCK(lhw); 7314 lkpi_cleanup_mcast_list_locked(lhw); 7315 LKPI_80211_LHW_MC_UNLOCK(lhw); 7316 7317 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 7318 spin_lock_destroy(&lhw->txq_scheduled_lock[ac]); 7319 7320 /* Cleanup more of lhw here or in wiphy_free()? */ 7321 spin_lock_destroy(&lhw->txq_lock); 7322 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 7323 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 7324 sx_destroy(&lhw->lvif_sx); 7325 LKPI_80211_LHW_MC_LOCK_DESTROY(lhw) 7326 IMPROVE(); 7327 } 7328 7329 void 7330 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw) 7331 { 7332 struct lkpi_hw *lhw; 7333 struct ieee80211com *ic; 7334 struct device *dev; 7335 7336 lhw = HW_TO_LHW(hw); 7337 ic = lhw->ic; 7338 7339 /* Save the backpointer from net80211 to LinuxKPI. */ 7340 ic->ic_softc = lhw; 7341 7342 /* 7343 * Set a proper name before ieee80211_ifattach() if dev is set. 7344 * ath1xk also unset the dev so we need to check. 7345 * Also we will (ab)use this opportunity to register the 7346 * power management sub-children if thay exist (for suspend/resume). 7347 */ 7348 dev = wiphy_dev(hw->wiphy); 7349 if (dev != NULL) { 7350 ic->ic_name = dev_name(dev); 7351 if (dev->bsddev != NULL) { 7352 bus_identify_children(dev->bsddev); 7353 bus_enumerate_hinted_children(dev->bsddev); 7354 bus_topo_lock(); 7355 bus_attach_children(dev->bsddev); 7356 bus_topo_unlock(); 7357 } 7358 } else { 7359 TODO("adjust arguments to still have the old dev or go through " 7360 "the hoops of getting the bsddev from hw and detach; " 7361 "or do in XXX; check ath1kx drivers"); 7362 } 7363 7364 /* XXX-BZ do we also need to set wiphy name? */ 7365 } 7366 7367 struct ieee80211_hw * 7368 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 7369 { 7370 struct lkpi_hw *lhw; 7371 7372 lhw = wiphy_priv(wiphy); 7373 return (LHW_TO_HW(lhw)); 7374 } 7375 7376 static void 7377 lkpi_radiotap_attach(struct lkpi_hw *lhw) 7378 { 7379 struct ieee80211com *ic; 7380 7381 ic = lhw->ic; 7382 ieee80211_radiotap_attach(ic, 7383 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 7384 LKPI_RTAP_TX_FLAGS_PRESENT, 7385 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 7386 LKPI_RTAP_RX_FLAGS_PRESENT); 7387 } 7388 7389 int 7390 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 7391 { 7392 struct ieee80211com *ic; 7393 struct lkpi_hw *lhw; 7394 int band, i; 7395 7396 lhw = HW_TO_LHW(hw); 7397 ic = lhw->ic; 7398 7399 /* We do it this late as wiphy->dev should be set for the name. */ 7400 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 7401 if (lhw->workq == NULL) 7402 return (-EAGAIN); 7403 7404 /* XXX-BZ figure this out how they count his... */ 7405 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 7406 IEEE80211_ADDR_COPY(ic->ic_macaddr, 7407 hw->wiphy->perm_addr); 7408 } else if (hw->wiphy->n_addresses > 0) { 7409 /* We take the first one. */ 7410 IEEE80211_ADDR_COPY(ic->ic_macaddr, 7411 hw->wiphy->addresses[0].addr); 7412 } else { 7413 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 7414 } 7415 7416 #ifdef __not_yet__ 7417 /* See comment in lkpi_80211_txq_tx_one(). */ 7418 ic->ic_headroom = hw->extra_tx_headroom; 7419 #endif 7420 7421 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 7422 ic->ic_opmode = IEEE80211_M_STA; 7423 7424 /* Set device capabilities. */ 7425 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 7426 ic->ic_caps = 7427 IEEE80211_C_STA | 7428 IEEE80211_C_MONITOR | 7429 IEEE80211_C_WPA | /* WPA/RSN */ 7430 #ifdef LKPI_80211_WME 7431 IEEE80211_C_WME | 7432 #endif 7433 #if 0 7434 IEEE80211_C_PMGT | 7435 #endif 7436 IEEE80211_C_SHSLOT | /* short slot time supported */ 7437 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 7438 ; 7439 7440 #ifdef LKPI_80211_BGSCAN 7441 if (lhw->ops->hw_scan) 7442 ic->ic_caps |= IEEE80211_C_BGSCAN; 7443 #endif 7444 7445 lkpi_enable_hw_scan(lhw); 7446 7447 /* Does the driver/firmware handle rate countrol? */ 7448 /* Currently only older iwlwifi mvm devices are in this category. */ 7449 if (bootverbose && !ieee80211_hw_check(hw, HAS_RATE_CONTROL)) 7450 ic_printf(ic, "NOTE: rate control not supported by LinuxKPI; " 7451 "expect low rates only\n"); 7452 7453 /* Does HW support Fragmentation offload? */ 7454 if (ieee80211_hw_check(hw, SUPPORTS_TX_FRAG)) 7455 ic->ic_flags_ext |= IEEE80211_FEXT_FRAG_OFFLOAD; 7456 7457 /* Does HW support full AMPDU[-TX] offload? */ 7458 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 7459 ic->ic_flags_ext |= IEEE80211_FEXT_AMPDU_OFFLOAD; 7460 #ifdef __notyet__ 7461 if (ieee80211_hw_check(hw, TX_AMSDU)) 7462 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 7463 #endif 7464 7465 /* 7466 * The wiphy variables report bitmasks of avail antennas. 7467 * (*get_antenna) get the current bitmask sets which can be 7468 * altered by (*set_antenna) for some drivers. 7469 * XXX-BZ will the count alone do us much good long-term in net80211? 7470 */ 7471 if (hw->wiphy->available_antennas_rx || 7472 hw->wiphy->available_antennas_tx) { 7473 uint32_t rxs, txs; 7474 7475 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 7476 ic->ic_rxstream = bitcount32(rxs); 7477 ic->ic_txstream = bitcount32(txs); 7478 } 7479 } 7480 7481 ic->ic_cryptocaps = 0; 7482 #ifdef LKPI_80211_HW_CRYPTO 7483 if (lkpi_hwcrypto && hw->wiphy->n_cipher_suites > 0) { 7484 uint32_t hwciphers; 7485 7486 hwciphers = 0; 7487 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) { 7488 uint32_t cs; 7489 7490 cs = lkpi_l80211_to_net80211_cyphers( 7491 ic, hw->wiphy->cipher_suites[i]); 7492 if (cs == IEEE80211_CRYPTO_TKIP) { 7493 /* 7494 * We do set this here. We will only find out 7495 * when doing a SET_KEY operation depending on 7496 * what the driver returns. 7497 * net80211::ieee80211_crypto_newkey() 7498 * checks this so we will have to do flags 7499 * surgery later. 7500 */ 7501 cs |= IEEE80211_CRYPTO_TKIPMIC; 7502 } 7503 hwciphers |= cs; 7504 } 7505 /* 7506 * (20250415) nothing anywhere in the path checks we actually 7507 * support all these in net80211. 7508 * net80211 supports _256 variants but the ioctl does not. 7509 */ 7510 IMPROVE("as net80211 grows more support, enable them"); 7511 hwciphers &= (IEEE80211_CRYPTO_WEP | 7512 IEEE80211_CRYPTO_TKIP | IEEE80211_CRYPTO_TKIPMIC | 7513 IEEE80211_CRYPTO_AES_CCM | IEEE80211_CRYPTO_AES_GCM_128); 7514 /* 7515 * We only support CCMP here, so further filter. 7516 * Also permit TKIP if turned on. 7517 */ 7518 hwciphers &= (IEEE80211_CRYPTO_AES_CCM | 7519 IEEE80211_CRYPTO_AES_GCM_128 | 7520 (lkpi_hwcrypto_tkip ? (IEEE80211_CRYPTO_TKIP | 7521 IEEE80211_CRYPTO_TKIPMIC) : 0)); 7522 ieee80211_set_hardware_ciphers(ic, hwciphers); 7523 } 7524 #endif 7525 7526 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 7527 ic->ic_channels); 7528 7529 ieee80211_ifattach(ic); 7530 7531 ic->ic_update_mcast = lkpi_ic_update_mcast; 7532 ic->ic_update_promisc = lkpi_ic_update_promisc; 7533 ic->ic_update_chw = lkpi_ic_update_chw; 7534 ic->ic_parent = lkpi_ic_parent; 7535 ic->ic_scan_start = lkpi_ic_scan_start; 7536 ic->ic_scan_end = lkpi_ic_scan_end; 7537 ic->ic_set_channel = lkpi_ic_set_channel; 7538 ic->ic_transmit = lkpi_ic_transmit; 7539 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 7540 ic->ic_vap_create = lkpi_ic_vap_create; 7541 ic->ic_vap_delete = lkpi_ic_vap_delete; 7542 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 7543 ic->ic_wme.wme_update = lkpi_ic_wme_update; 7544 7545 lhw->ic_scan_curchan = ic->ic_scan_curchan; 7546 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 7547 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 7548 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 7549 7550 lhw->ic_node_alloc = ic->ic_node_alloc; 7551 ic->ic_node_alloc = lkpi_ic_node_alloc; 7552 lhw->ic_node_init = ic->ic_node_init; 7553 ic->ic_node_init = lkpi_ic_node_init; 7554 lhw->ic_node_cleanup = ic->ic_node_cleanup; 7555 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 7556 lhw->ic_node_free = ic->ic_node_free; 7557 ic->ic_node_free = lkpi_ic_node_free; 7558 7559 #ifdef LKPI_80211_HT 7560 /* 7561 * Only attach if the driver/firmware supports (*ampdu_action)(). 7562 * Otherwise it is in the hands of net80211. 7563 */ 7564 if (lhw->ops->ampdu_action != NULL) { 7565 lhw->ic_recv_action = ic->ic_recv_action; 7566 ic->ic_recv_action = lkpi_ic_recv_action; 7567 lhw->ic_send_action = ic->ic_send_action; 7568 ic->ic_send_action = lkpi_ic_send_action; 7569 7570 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 7571 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 7572 7573 lhw->ic_addba_request = ic->ic_addba_request; 7574 ic->ic_addba_request = lkpi_ic_addba_request; 7575 lhw->ic_addba_response = ic->ic_addba_response; 7576 ic->ic_addba_response = lkpi_ic_addba_response; 7577 lhw->ic_addba_stop = ic->ic_addba_stop; 7578 ic->ic_addba_stop = lkpi_ic_addba_stop; 7579 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 7580 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 7581 7582 lhw->ic_bar_response = ic->ic_bar_response; 7583 ic->ic_bar_response = lkpi_ic_bar_response; 7584 7585 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 7586 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 7587 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 7588 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 7589 } 7590 #endif 7591 7592 lkpi_radiotap_attach(lhw); 7593 7594 /* 7595 * Assign the first possible channel for now; seems Realtek drivers 7596 * expect one. 7597 * Also remember the amount of bands we support and the most rates 7598 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 7599 */ 7600 lhw->supbands = lhw->max_rates = 0; 7601 for (band = 0; band < NUM_NL80211_BANDS; band++) { 7602 struct ieee80211_supported_band *supband; 7603 struct linuxkpi_ieee80211_channel *channels; 7604 7605 supband = hw->wiphy->bands[band]; 7606 if (supband == NULL || supband->n_channels == 0) 7607 continue; 7608 7609 lhw->supbands++; 7610 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 7611 7612 /* If we have a channel, we need to keep counting supbands. */ 7613 if (hw->conf.chandef.chan != NULL) 7614 continue; 7615 7616 channels = supband->channels; 7617 for (i = 0; i < supband->n_channels; i++) { 7618 7619 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 7620 continue; 7621 7622 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 7623 #ifdef LKPI_80211_HT 7624 (ic->ic_flags_ht & IEEE80211_FHT_HT) ? NL80211_CHAN_HT20 : 7625 #endif 7626 NL80211_CHAN_NO_HT); 7627 lhw->dflt_chandef = hw->conf.chandef; 7628 #ifdef LINUXKPI_DEBUG_80211 7629 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 7630 ic_printf(ic, "%s:%d: initialized " 7631 "hw->conf.chandef and dflt_chandef to %p\n", 7632 __func__, __LINE__, &lhw->dflt_chandef); 7633 #endif 7634 break; 7635 } 7636 } 7637 7638 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 7639 7640 /* Make sure we do not support more than net80211 is willing to take. */ 7641 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 7642 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 7643 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 7644 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 7645 } 7646 7647 /* 7648 * The maximum supported bitrates on any band + size for 7649 * DSSS Parameter Set give our per-band IE size. 7650 * SSID is the responsibility of the driver and goes on the side. 7651 * The user specified bits coming from the vap go into the 7652 * "common ies" fields. 7653 */ 7654 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 7655 if (lhw->max_rates > IEEE80211_RATE_SIZE) 7656 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 7657 7658 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 7659 /* 7660 * net80211 does not seem to support the DSSS Parameter Set but 7661 * some of the drivers insert it so calculate the extra fixed 7662 * space in. 7663 */ 7664 lhw->scan_ie_len += 2 + 1; 7665 } 7666 7667 #if defined(LKPI_80211_HT) 7668 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 7669 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 7670 #endif 7671 #if defined(LKPI_80211_VHT) 7672 if (IEEE80211_CONF_VHT(ic)) 7673 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 7674 #endif 7675 7676 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 7677 if (hw->wiphy->max_scan_ie_len > 0) { 7678 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 7679 goto err; 7680 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 7681 } 7682 7683 if (bootverbose) { 7684 if (hw->netdev_features != 0) 7685 ic_printf(ic, "netdev_features %b\n", 7686 hw->netdev_features, NETIF_F_BITS); 7687 ieee80211_announce(ic); 7688 } 7689 7690 return (0); 7691 err: 7692 IMPROVE("TODO FIXME CLEANUP"); 7693 return (-EAGAIN); 7694 } 7695 7696 void 7697 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 7698 { 7699 struct lkpi_hw *lhw; 7700 struct ieee80211com *ic; 7701 7702 lhw = HW_TO_LHW(hw); 7703 ic = lhw->ic; 7704 ieee80211_ifdetach(ic); 7705 } 7706 7707 void 7708 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 7709 enum ieee80211_iface_iter flags, 7710 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 7711 void *arg) 7712 { 7713 struct lkpi_hw *lhw; 7714 struct lkpi_vif *lvif; 7715 struct ieee80211_vif *vif; 7716 bool active, atomic, nin_drv; 7717 7718 lhw = HW_TO_LHW(hw); 7719 7720 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 7721 IEEE80211_IFACE_ITER_RESUME_ALL| 7722 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 7723 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC| 7724 IEEE80211_IFACE_ITER__MTX)) { 7725 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 7726 __func__, flags); 7727 } 7728 7729 if ((flags & IEEE80211_IFACE_ITER__MTX) != 0) 7730 lockdep_assert_wiphy(hw->wiphy); 7731 7732 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 7733 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 7734 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 7735 7736 if (atomic) { 7737 IMPROVE("LKPI_80211_LHW_LVIF_LOCK atomic assume to be rcu?"); 7738 LKPI_80211_LHW_LVIF_LOCK(lhw); 7739 } 7740 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 7741 struct ieee80211vap *vap; 7742 7743 vif = LVIF_TO_VIF(lvif); 7744 7745 /* 7746 * If we want "active" interfaces, we need to distinguish on 7747 * whether the driver knows about them or not to be able to 7748 * handle the "resume" case correctly. Skip the ones the 7749 * driver does not know about. 7750 */ 7751 if (active && !lvif->added_to_drv && 7752 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 7753 continue; 7754 7755 /* 7756 * If we shall skip interfaces not added to the driver do so 7757 * if we haven't yet. 7758 */ 7759 if (nin_drv && !lvif->added_to_drv) 7760 continue; 7761 7762 /* 7763 * Run the iterator function if we are either not asking 7764 * asking for active only or if the VAP is "running". 7765 */ 7766 /* XXX-BZ probably should have state in the lvif as well. */ 7767 vap = LVIF_TO_VAP(lvif); 7768 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 7769 iterfunc(arg, vif->addr, vif); 7770 } 7771 if (atomic) 7772 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 7773 } 7774 7775 static void 7776 lkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 7777 ieee80211_keyix keyix, struct lkpi_sta *lsta, 7778 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 7779 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 7780 void *arg) 7781 { 7782 #ifdef LINUXKPI_DEBUG_80211 7783 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 7784 net80211_vap_printf(LVIF_TO_VAP(VIF_TO_LVIF(vif)), 7785 "%s:%d: lsta %6D added_to_drv %d kc[keyix %u] %p\n", 7786 __func__, __LINE__, LSTA_TO_STA(lsta)->addr, ":", 7787 lsta->added_to_drv, keyix, lsta->kc[keyix]); 7788 #endif 7789 7790 if (!lsta->added_to_drv) 7791 return; 7792 7793 if (lsta->kc[keyix] == NULL) 7794 return; 7795 7796 iterfunc(hw, vif, LSTA_TO_STA(lsta), lsta->kc[keyix], arg); 7797 } 7798 7799 void 7800 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 7801 struct ieee80211_vif *vif, 7802 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 7803 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 7804 void *arg, bool rcu) 7805 { 7806 struct lkpi_sta *lsta; 7807 struct lkpi_vif *lvif; 7808 7809 lvif = VIF_TO_LVIF(vif); 7810 7811 if (rcu) { 7812 rcu_read_lock_held(); /* XXX-BZ is this correct? */ 7813 7814 if (vif == NULL) { 7815 TODO(); 7816 } else { 7817 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 7818 for (ieee80211_keyix keyix = 0; keyix < nitems(lsta->kc); 7819 keyix++) 7820 lkpi_ieee80211_iterate_keys(hw, vif, 7821 keyix, lsta, iterfunc, arg); 7822 } 7823 } 7824 } else { 7825 TODO("Used by suspend/resume; order of keys as installed to " 7826 "firmware is important; we'll need to rewrite some code for that"); 7827 lockdep_assert_wiphy(hw->wiphy); 7828 7829 if (vif == NULL) { 7830 TODO(); 7831 } else { 7832 list_for_each_entry(lsta, &lvif->lsta_list, lsta_list) { 7833 for (ieee80211_keyix keyix = 0; keyix < nitems(lsta->kc); 7834 keyix++) 7835 lkpi_ieee80211_iterate_keys(hw, vif, 7836 keyix, lsta, iterfunc, arg); 7837 } 7838 } 7839 } 7840 } 7841 7842 void 7843 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 7844 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 7845 void *), 7846 void *arg) 7847 { 7848 struct lkpi_hw *lhw; 7849 struct lkpi_chanctx *lchanctx; 7850 7851 KASSERT(hw != NULL && iterfunc != NULL, 7852 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 7853 7854 lhw = HW_TO_LHW(hw); 7855 7856 rcu_read_lock(); 7857 list_for_each_entry_rcu(lchanctx, &lhw->lchanctx_list, entry) { 7858 if (!lchanctx->added_to_drv) 7859 continue; 7860 iterfunc(hw, &lchanctx->chanctx_conf, arg); 7861 } 7862 rcu_read_unlock(); 7863 } 7864 7865 void 7866 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 7867 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 7868 { 7869 struct lkpi_hw *lhw; 7870 struct lkpi_vif *lvif; 7871 struct lkpi_sta *lsta; 7872 struct ieee80211_sta *sta; 7873 7874 KASSERT(hw != NULL && iterfunc != NULL, 7875 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 7876 7877 lhw = HW_TO_LHW(hw); 7878 7879 LKPI_80211_LHW_LVIF_LOCK(lhw); 7880 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 7881 7882 rcu_read_lock(); 7883 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 7884 if (!lsta->added_to_drv) 7885 continue; 7886 sta = LSTA_TO_STA(lsta); 7887 iterfunc(arg, sta); 7888 } 7889 rcu_read_unlock(); 7890 } 7891 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 7892 } 7893 7894 struct linuxkpi_ieee80211_regdomain * 7895 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 7896 { 7897 struct linuxkpi_ieee80211_regdomain *regd; 7898 7899 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 7900 GFP_KERNEL); 7901 return (regd); 7902 } 7903 7904 int 7905 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 7906 struct linuxkpi_ieee80211_regdomain *regd) 7907 { 7908 struct lkpi_hw *lhw; 7909 struct ieee80211com *ic; 7910 struct ieee80211_regdomain *rd; 7911 7912 lhw = wiphy_priv(wiphy); 7913 ic = lhw->ic; 7914 7915 rd = &ic->ic_regdomain; 7916 if (rd->isocc[0] == '\0') { 7917 rd->isocc[0] = regd->alpha2[0]; 7918 rd->isocc[1] = regd->alpha2[1]; 7919 } 7920 7921 TODO(); 7922 /* XXX-BZ finish the rest. */ 7923 7924 return (0); 7925 } 7926 7927 void 7928 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 7929 struct cfg80211_scan_info *info) 7930 { 7931 struct lkpi_hw *lhw; 7932 struct ieee80211com *ic; 7933 struct ieee80211_scan_state *ss; 7934 7935 lhw = wiphy_priv(hw->wiphy); 7936 ic = lhw->ic; 7937 ss = ic->ic_scan; 7938 7939 TRACE_SCAN(ic, "scan_flags %b info { %ju, %6D, aborted %d }", 7940 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 7941 (uintmax_t)info->scan_start_tsf, info->tsf_bssid, ":", 7942 info->aborted); 7943 7944 ieee80211_scan_done(ss->ss_vap); 7945 7946 LKPI_80211_LHW_SCAN_LOCK(lhw); 7947 free(lhw->hw_req, M_LKPI80211); 7948 lhw->hw_req = NULL; 7949 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 7950 /* The wakeup(lhw) will be called from lkpi_ic_scan_end(). */ 7951 /* wakeup(lhw); */ 7952 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 7953 7954 return; 7955 } 7956 7957 static void 7958 lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 7959 { 7960 struct ieee80211_node *ni; 7961 #ifdef LKPI_80211_USE_MTAG 7962 struct m_tag *mtag; 7963 #endif 7964 int ok; 7965 7966 ni = NULL; 7967 #ifdef LKPI_80211_USE_MTAG 7968 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 7969 if (mtag != NULL) { 7970 struct lkpi_80211_tag_rxni *rxni; 7971 7972 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 7973 ni = rxni->ni; 7974 } 7975 #else 7976 if (m->m_pkthdr.PH_loc.ptr != NULL) { 7977 ni = m->m_pkthdr.PH_loc.ptr; 7978 m->m_pkthdr.PH_loc.ptr = NULL; 7979 } 7980 #endif 7981 7982 if (ni != NULL) { 7983 ok = ieee80211_input_mimo(ni, m); 7984 ieee80211_free_node(ni); /* Release the reference. */ 7985 if (ok < 0) 7986 m_freem(m); 7987 } else { 7988 ok = ieee80211_input_mimo_all(lhw->ic, m); 7989 /* mbuf got consumed. */ 7990 } 7991 7992 #ifdef LINUXKPI_DEBUG_80211 7993 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 7994 printf("TRACE-RX: %s: handled frame type %#0x\n", __func__, ok); 7995 #endif 7996 } 7997 7998 static void 7999 lkpi_80211_lhw_rxq_task(void *ctx, int pending) 8000 { 8001 struct lkpi_hw *lhw; 8002 struct mbufq mq; 8003 struct mbuf *m; 8004 8005 lhw = ctx; 8006 8007 #ifdef LINUXKPI_DEBUG_80211 8008 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8009 printf("TRACE-RX: %s: lhw %p pending %d mbuf_qlen %d\n", 8010 __func__, lhw, pending, mbufq_len(&lhw->rxq)); 8011 #endif 8012 8013 mbufq_init(&mq, IFQ_MAXLEN); 8014 8015 LKPI_80211_LHW_RXQ_LOCK(lhw); 8016 mbufq_concat(&mq, &lhw->rxq); 8017 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8018 8019 m = mbufq_dequeue(&mq); 8020 while (m != NULL) { 8021 lkpi_80211_lhw_rxq_rx_one(lhw, m); 8022 m = mbufq_dequeue(&mq); 8023 } 8024 } 8025 8026 static void 8027 lkpi_convert_rx_status(struct ieee80211_hw *hw, struct lkpi_sta *lsta, 8028 struct ieee80211_rx_status *rx_status, 8029 struct ieee80211_rx_stats *rx_stats, 8030 uint8_t *rssip) 8031 { 8032 struct ieee80211_supported_band *supband; 8033 struct rate_info rxrate; 8034 int i; 8035 uint8_t rssi; 8036 8037 memset(&rxrate, 0, sizeof(rxrate)); 8038 memset(rx_stats, 0, sizeof(*rx_stats)); 8039 rx_stats->r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 8040 /* XXX-BZ correct hardcoded noise floor, survey data? */ 8041 rx_stats->c_nf = -96; 8042 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 8043 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 8044 rssi = rx_status->signal; 8045 else 8046 rssi = rx_stats->c_nf; 8047 /* 8048 * net80211 signal strength data are in .5 dBm units relative to 8049 * the current noise floor (see comment in ieee80211_node.h). 8050 */ 8051 rssi -= rx_stats->c_nf; 8052 if (rssip != NULL) 8053 *rssip = rssi; 8054 rx_stats->c_rssi = rssi * 2; 8055 rx_stats->r_flags |= IEEE80211_R_BAND; 8056 rx_stats->c_band = 8057 lkpi_nl80211_band_to_net80211_band(rx_status->band); 8058 rx_stats->r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 8059 rx_stats->c_freq = rx_status->freq; 8060 rx_stats->c_ieee = ieee80211_mhz2ieee(rx_stats->c_freq, rx_stats->c_band); 8061 8062 rx_stats->c_rx_tsf = rx_status->mactime; 8063 8064 /* XXX RX_FLAG_MACTIME_IS_RTAP_TS64 ? */ 8065 if ((rx_status->flag & RX_FLAG_MACTIME) == 8066 (RX_FLAG_MACTIME_START|RX_FLAG_MACTIME_END)) { 8067 rx_stats->r_flags |= IEEE80211_R_TSF64; 8068 /* XXX RX_FLAG_MACTIME_PLCP_START ? */ 8069 if ((rx_status->flag & RX_FLAG_MACTIME) == RX_FLAG_MACTIME_START) 8070 rx_stats->r_flags |= IEEE80211_R_TSF_START; 8071 if ((rx_status->flag & RX_FLAG_MACTIME) == RX_FLAG_MACTIME_END) 8072 rx_stats->r_flags |= IEEE80211_R_TSF_END; 8073 /* XXX-BZ if TSF_END will net80211 do the unwind of time? */ 8074 } 8075 8076 if (rx_status->chains != 0) { 8077 int cc; 8078 int8_t crssi; 8079 8080 rx_stats->c_chain = rx_status->chains; 8081 rx_stats->r_flags |= IEEE80211_R_C_CHAIN; 8082 8083 cc = 0; 8084 for (i = 0; i < nitems(rx_status->chain_signal); i++) { 8085 if (!(rx_status->chains & BIT(i))) 8086 continue; 8087 crssi = rx_status->chain_signal[i]; 8088 crssi -= rx_stats->c_nf; 8089 rx_stats->c_rssi_ctl[i] = crssi * 2; 8090 rx_stats->c_rssi_ext[i] = crssi * 2; /* XXX _ext ??? ATH thing? */ 8091 /* We currently only have the global noise floor value. */ 8092 rx_stats->c_nf_ctl[i] = rx_stats->c_nf; 8093 rx_stats->c_nf_ext[i] = rx_stats->c_nf; 8094 cc++; 8095 } 8096 if (cc > 0) 8097 rx_stats->r_flags |= (IEEE80211_R_C_NF | IEEE80211_R_C_RSSI); 8098 } 8099 8100 /* XXX-NET80211 We are not going to populate c_phytype! */ 8101 8102 switch (rx_status->encoding) { 8103 case RX_ENC_LEGACY: 8104 { 8105 uint32_t legacy = 0; 8106 8107 supband = hw->wiphy->bands[rx_status->band]; 8108 if (supband != NULL) 8109 legacy = supband->bitrates[rx_status->rate_idx].bitrate; 8110 rx_stats->c_rate = legacy; 8111 rxrate.legacy = legacy; 8112 /* Is there a LinuxKPI way of reporting IEEE80211_RX_F_CCK / _OFDM? */ 8113 break; 8114 } 8115 case RX_ENC_HT: 8116 rx_stats->c_pktflags |= IEEE80211_RX_F_HT; 8117 rx_stats->c_rate = rx_status->rate_idx; /* mcs */ 8118 rxrate.flags |= RATE_INFO_FLAGS_MCS; 8119 rxrate.mcs = rx_status->rate_idx; 8120 if ((rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) != 0) { 8121 rx_stats->c_pktflags |= IEEE80211_RX_F_SHORTGI; 8122 rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 8123 } 8124 break; 8125 case RX_ENC_VHT: 8126 rx_stats->c_pktflags |= IEEE80211_RX_F_VHT; 8127 rx_stats->c_rate = rx_status->rate_idx; /* mcs */ 8128 rx_stats->c_vhtnss = rx_status->nss; 8129 rxrate.flags |= RATE_INFO_FLAGS_VHT_MCS; 8130 rxrate.mcs = rx_status->rate_idx; 8131 rxrate.nss = rx_status->nss; 8132 if ((rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) != 0) { 8133 rx_stats->c_pktflags |= IEEE80211_RX_F_SHORTGI; 8134 rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 8135 } 8136 break; 8137 case RX_ENC_HE: 8138 rxrate.flags |= RATE_INFO_FLAGS_HE_MCS; 8139 rxrate.mcs = rx_status->rate_idx; 8140 rxrate.nss = rx_status->nss; 8141 /* XXX TODO */ 8142 TODO("net80211 has not matching encoding for %u", rx_status->encoding); 8143 break; 8144 case RX_ENC_EHT: 8145 rxrate.flags |= RATE_INFO_FLAGS_EHT_MCS; 8146 rxrate.mcs = rx_status->rate_idx; 8147 rxrate.nss = rx_status->nss; 8148 /* XXX TODO */ 8149 TODO("net80211 has not matching encoding for %u", rx_status->encoding); 8150 break; 8151 } 8152 8153 rxrate.bw = rx_status->bw; 8154 switch (rx_status->bw) { 8155 case RATE_INFO_BW_20: 8156 rx_stats->c_width = IEEE80211_RX_FW_20MHZ; 8157 break; 8158 case RATE_INFO_BW_40: 8159 rx_stats->c_width = IEEE80211_RX_FW_40MHZ; 8160 break; 8161 case RATE_INFO_BW_80: 8162 rx_stats->c_width = IEEE80211_RX_FW_80MHZ; 8163 break; 8164 case RATE_INFO_BW_160: 8165 rx_stats->c_width = IEEE80211_RX_FW_160MHZ; 8166 break; 8167 case RATE_INFO_BW_320: 8168 case RATE_INFO_BW_HE_RU: 8169 case RATE_INFO_BW_EHT_RU: 8170 case RATE_INFO_BW_5: 8171 case RATE_INFO_BW_10: 8172 TODO("net80211 has not matching bandwidth for %u", rx_status->bw); 8173 break; 8174 } 8175 8176 if ((rx_status->enc_flags & RX_ENC_FLAG_LDPC) != 0) 8177 rx_stats->c_pktflags |= IEEE80211_RX_F_LDPC; 8178 if ((rx_status->enc_flags & RX_ENC_FLAG_STBC_MASK) != 0) 8179 rx_stats->c_pktflags |= IEEE80211_RX_F_STBC; 8180 8181 /* 8182 * We only need these for LKPI_80211_HW_CRYPTO in theory but in 8183 * case the hardware does something we do not expect always leave 8184 * these enabled. Leaving this commant as documentation for the || 1. 8185 */ 8186 #if defined(LKPI_80211_HW_CRYPTO) || 1 8187 if (rx_status->flag & RX_FLAG_DECRYPTED) { 8188 rx_stats->c_pktflags |= IEEE80211_RX_F_DECRYPTED; 8189 /* Only valid if decrypted is set. */ 8190 if (rx_status->flag & RX_FLAG_PN_VALIDATED) 8191 rx_stats->c_pktflags |= IEEE80211_RX_F_PN_VALIDATED; 8192 } 8193 if (rx_status->flag & RX_FLAG_IV_STRIPPED) 8194 rx_stats->c_pktflags |= IEEE80211_RX_F_IV_STRIP; 8195 if (rx_status->flag & RX_FLAG_ICV_STRIPPED) 8196 rx_stats->c_pktflags |= IEEE80211_RX_F_ICV_STRIP; 8197 if (rx_status->flag & RX_FLAG_MIC_STRIPPED) 8198 rx_stats->c_pktflags |= IEEE80211_RX_F_MIC_STRIP; 8199 if (rx_status->flag & RX_FLAG_MMIC_STRIPPED) 8200 rx_stats->c_pktflags |= IEEE80211_RX_F_MMIC_STRIP; 8201 if (rx_status->flag & RX_FLAG_MMIC_ERROR) 8202 rx_stats->c_pktflags |= IEEE80211_RX_F_FAIL_MMIC; 8203 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 8204 rx_stats->c_pktflags |= IEEE80211_RX_F_FAIL_FCSCRC; 8205 #endif 8206 8207 /* Fill in some sinfo bits to fill gaps not reported byt the driver. */ 8208 if (lsta != NULL) { 8209 memcpy(&lsta->sinfo.rxrate, &rxrate, sizeof(rxrate)); 8210 lsta->sinfo.filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE); 8211 8212 if (rx_status->chains != 0) { 8213 lsta->sinfo.chains = rx_status->chains; 8214 memcpy(lsta->sinfo.chain_signal, rx_status->chain_signal, 8215 sizeof(lsta->sinfo.chain_signal)); 8216 lsta->sinfo.filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL); 8217 } 8218 } 8219 } 8220 8221 #ifdef LINUXKPI_DEBUG_80211 8222 static void 8223 lkpi_rx_log_beacon(struct mbuf *m, struct lkpi_hw *lhw, 8224 struct ieee80211_rx_status *rx_status) 8225 { 8226 struct ieee80211_mgmt *f; 8227 uint8_t *e; 8228 char ssid[IEEE80211_NWID_LEN * 4 + 1]; 8229 8230 memset(ssid, '\0', sizeof(ssid)); 8231 8232 f = mtod(m, struct ieee80211_mgmt *); 8233 e = f->u.beacon.variable; 8234 /* 8235 * Usually SSID is right after the fixed part and for debugging we will 8236 * be fine should we miss it if it is not. 8237 */ 8238 while ((e - (uint8_t *)f) < m->m_len) { 8239 if (*e == IEEE80211_ELEMID_SSID) 8240 break; 8241 e += (2 + *(e + 1)); 8242 } 8243 if (*e == IEEE80211_ELEMID_SSID) { 8244 int i, len; 8245 char *p; 8246 8247 p = ssid; 8248 len = m->m_len - ((e + 2) - (uint8_t *)f); 8249 if (len > *(e + 1)) 8250 len = *(e + 1); 8251 e += 2; 8252 for (i = 0; i < len; i++) { 8253 /* Printable character? */ 8254 if (*e >= 0x20 && *e < 0x7f) { 8255 *p++ = *e++; 8256 } else { 8257 snprintf(p, 5, "%#04x", *e++); 8258 p += 4; 8259 } 8260 } 8261 *p = '\0'; 8262 } 8263 8264 /* We print skb, skb->data, m as we are seeing 'ghost beacons'. */ 8265 TRACE_SCAN_BEACON(lhw->ic, "Beacon: scan_flags %b, band %s freq %u chan %-4d " 8266 "len %d { %#06x %#06x %6D %6D %6D %#06x %ju %u %#06x SSID '%s' }", 8267 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 8268 lkpi_nl80211_band_name(rx_status->band), rx_status->freq, 8269 linuxkpi_ieee80211_frequency_to_channel(rx_status->freq, 0), 8270 m->m_pkthdr.len, f->frame_control, f->duration_id, 8271 f->da, ":", f->sa, ":", f->bssid, ":", f->seq_ctrl, 8272 (uintmax_t)le64_to_cpu(f->u.beacon.timestamp), 8273 le16_to_cpu(f->u.beacon.beacon_int), 8274 le16_to_cpu(f->u.beacon.capab_info), ssid); 8275 } 8276 #endif 8277 8278 /* For %list see comment towards the end of the function. */ 8279 void 8280 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 8281 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 8282 struct list_head *list __unused) 8283 { 8284 struct lkpi_hw *lhw; 8285 struct ieee80211com *ic; 8286 struct mbuf *m; 8287 struct skb_shared_info *shinfo; 8288 struct ieee80211_rx_status *rx_status; 8289 struct ieee80211_rx_stats rx_stats; 8290 struct ieee80211_node *ni; 8291 struct ieee80211vap *vap; 8292 struct ieee80211_hdr *hdr; 8293 struct lkpi_sta *lsta; 8294 int i, offset, ok, error; 8295 uint8_t rssi; 8296 bool is_beacon; 8297 8298 lhw = HW_TO_LHW(hw); 8299 ic = lhw->ic; 8300 8301 if (skb->len < 2) { 8302 /* Need 80211 stats here. */ 8303 counter_u64_add(ic->ic_ierrors, 1); 8304 IMPROVE(); 8305 goto err; 8306 } 8307 8308 /* 8309 * For now do the data copy; we can later improve things. Might even 8310 * have an mbuf backing the skb data then? 8311 */ 8312 m = m_get3(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 8313 if (m == NULL) { 8314 counter_u64_add(ic->ic_ierrors, 1); 8315 goto err; 8316 } 8317 m_copyback(m, 0, skb->tail - skb->data, skb->data); 8318 8319 shinfo = skb_shinfo(skb); 8320 offset = m->m_len; 8321 for (i = 0; i < shinfo->nr_frags; i++) { 8322 m_copyback(m, offset, shinfo->frags[i].size, 8323 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 8324 shinfo->frags[i].offset); 8325 offset += shinfo->frags[i].size; 8326 } 8327 8328 rx_status = IEEE80211_SKB_RXCB(skb); 8329 8330 hdr = (void *)skb->data; 8331 is_beacon = ieee80211_is_beacon(hdr->frame_control); 8332 8333 #ifdef LINUXKPI_DEBUG_80211 8334 /* 8335 * We use the mbuf here as otherwise the variable part might 8336 * be in skb frags. 8337 */ 8338 if (is_beacon && ((linuxkpi_debug_80211 & D80211_SCAN_BEACON) != 0)) 8339 lkpi_rx_log_beacon(m, lhw, rx_status); 8340 8341 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0 && 8342 (linuxkpi_debug_80211 & D80211_SCAN_BEACON) == 0) 8343 goto no_trace_beacons; 8344 8345 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8346 printf("TRACE-RX: %s: skb %p l/d/t-len (%u/%u/%u) " 8347 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 8348 __func__, skb, skb->len, skb->data_len, 8349 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 8350 shinfo, shinfo->nr_frags, 8351 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 8352 8353 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 8354 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 8355 8356 /* Implement a dump_rxcb() !!! */ 8357 if ((linuxkpi_debug_80211 & D80211_TRACE_RX) != 0 || 8358 (linuxkpi_debug_80211 & D80211_SCAN_BEACON) != 0) 8359 printf("TRACE-RX: %s: RXCB: %ju %ju %u, %b, %u, %#0x, %#0x, " 8360 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 8361 __func__, 8362 (uintmax_t)rx_status->boottime_ns, 8363 (uintmax_t)rx_status->mactime, 8364 rx_status->device_timestamp, 8365 rx_status->flag, IEEE80211_RX_STATUS_FLAGS_BITS, 8366 rx_status->freq, 8367 rx_status->bw, 8368 rx_status->encoding, 8369 rx_status->ampdu_reference, 8370 rx_status->band, 8371 rx_status->chains, 8372 rx_status->chain_signal[0], 8373 rx_status->chain_signal[1], 8374 rx_status->chain_signal[2], 8375 rx_status->chain_signal[3], 8376 rx_status->signal, 8377 rx_status->enc_flags, 8378 rx_status->he_dcm, 8379 rx_status->he_gi, 8380 rx_status->he_ru, 8381 rx_status->zero_length_psdu_type, 8382 rx_status->nss, 8383 rx_status->rate_idx); 8384 no_trace_beacons: 8385 #endif 8386 8387 lsta = NULL; 8388 if (sta != NULL) { 8389 lsta = STA_TO_LSTA(sta); 8390 ni = ieee80211_ref_node(lsta->ni); 8391 } else { 8392 struct ieee80211_frame_min *wh; 8393 8394 wh = mtod(m, struct ieee80211_frame_min *); 8395 ni = ieee80211_find_rxnode(ic, wh); 8396 if (ni != NULL) 8397 lsta = ni->ni_drv_data; 8398 } 8399 8400 rssi = 0; 8401 lkpi_convert_rx_status(hw, lsta, rx_status, &rx_stats, &rssi); 8402 8403 ok = ieee80211_add_rx_params(m, &rx_stats); 8404 if (ok == 0) { 8405 m_freem(m); 8406 counter_u64_add(ic->ic_ierrors, 1); 8407 goto err; 8408 } 8409 8410 if (ni != NULL) 8411 vap = ni->ni_vap; 8412 else 8413 /* 8414 * XXX-BZ can we improve this by looking at the frame hdr 8415 * or other meta-data passed up? 8416 */ 8417 vap = TAILQ_FIRST(&ic->ic_vaps); 8418 8419 #ifdef LINUXKPI_DEBUG_80211 8420 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8421 printf("TRACE-RX: %s: sta %p lsta %p state %d ni %p vap %p%s\n", 8422 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 8423 ni, vap, is_beacon ? " beacon" : ""); 8424 #endif 8425 8426 if (ni != NULL && vap != NULL && is_beacon && 8427 rx_status->device_timestamp > 0 && 8428 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 8429 struct lkpi_vif *lvif; 8430 struct ieee80211_vif *vif; 8431 struct ieee80211_frame *wh; 8432 8433 lvif = VAP_TO_LVIF(vap); 8434 vif = LVIF_TO_VIF(lvif); 8435 8436 wh = mtod(m, struct ieee80211_frame *); 8437 if (!IEEE80211_ADDR_EQ(wh->i_addr2, vif->cfg.ap_addr)) 8438 goto skip_device_ts; 8439 8440 IMPROVE("TIMING_BEACON_ONLY?"); 8441 /* mac80211 specific (not net80211) so keep it here. */ 8442 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 8443 /* 8444 * net80211 should take care of the other information (sync_tsf, 8445 * sync_dtim_count) as otherwise we need to parse the beacon. 8446 */ 8447 skip_device_ts: 8448 ; 8449 } 8450 8451 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 8452 ieee80211_radiotap_active_vap(vap)) { 8453 struct lkpi_radiotap_rx_hdr *rtap; 8454 8455 rtap = &lhw->rtap_rx; 8456 rtap->wr_tsft = rx_status->device_timestamp; 8457 rtap->wr_flags = 0; 8458 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 8459 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 8460 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 8461 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 8462 #if 0 /* .. or it does not given we strip it below. */ 8463 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 8464 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 8465 #endif 8466 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 8467 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 8468 rtap->wr_rate = 0; 8469 IMPROVE(); 8470 /* XXX TODO status->encoding / rate_index / bw */ 8471 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 8472 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 8473 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 8474 rtap->wr_dbm_antsignal = rssi; 8475 rtap->wr_dbm_antnoise = rx_stats.c_nf; 8476 } 8477 8478 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 8479 m_adj(m, -IEEE80211_CRC_LEN); 8480 8481 #if 0 8482 if (list != NULL) { 8483 /* 8484 * Normally this would be queued up and delivered by 8485 * netif_receive_skb_list(), napi_gro_receive(), or the like. 8486 * See mt76::mac80211.c as only current possible consumer. 8487 */ 8488 IMPROVE("we simply pass the packet to net80211 to deal with."); 8489 } 8490 #endif 8491 8492 /* Attach meta-information to the mbuf for the deferred RX path. */ 8493 if (ni != NULL) { 8494 #ifdef LKPI_80211_USE_MTAG 8495 struct m_tag *mtag; 8496 struct lkpi_80211_tag_rxni *rxni; 8497 8498 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 8499 sizeof(*rxni), IEEE80211_M_NOWAIT); 8500 if (mtag == NULL) { 8501 m_freem(m); 8502 counter_u64_add(ic->ic_ierrors, 1); 8503 goto err; 8504 } 8505 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 8506 rxni->ni = ni; /* We hold a reference. */ 8507 m_tag_prepend(m, mtag); 8508 #else 8509 m->m_pkthdr.PH_loc.ptr = ni; /* We hold a reference. */ 8510 #endif 8511 } 8512 8513 LKPI_80211_LHW_RXQ_LOCK(lhw); 8514 if (lhw->rxq_stopped) { 8515 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8516 m_freem(m); 8517 counter_u64_add(ic->ic_ierrors, 1); 8518 goto err; 8519 } 8520 8521 error = mbufq_enqueue(&lhw->rxq, m); 8522 if (error != 0) { 8523 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8524 m_freem(m); 8525 counter_u64_add(ic->ic_ierrors, 1); 8526 #ifdef LINUXKPI_DEBUG_80211 8527 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8528 ic_printf(ni->ni_ic, "%s: mbufq_enqueue failed: %d\n", 8529 __func__, error); 8530 #endif 8531 goto err; 8532 } 8533 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 8534 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8535 8536 IMPROVE(); 8537 8538 err: 8539 /* The skb is ours so we can free it :-) */ 8540 kfree_skb(skb); 8541 } 8542 8543 uint8_t 8544 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 8545 { 8546 const struct ieee80211_frame *wh; 8547 uint8_t tid; 8548 8549 /* Linux seems to assume this is a QOS-Data-Frame */ 8550 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 8551 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 8552 hdr->frame_control)); 8553 8554 wh = (const struct ieee80211_frame *)hdr; 8555 tid = ieee80211_gettid(wh); 8556 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 8557 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 8558 8559 return (tid); 8560 } 8561 8562 /* -------------------------------------------------------------------------- */ 8563 8564 static void 8565 lkpi_wiphy_work(struct work_struct *work) 8566 { 8567 struct lkpi_wiphy *lwiphy; 8568 struct wiphy *wiphy; 8569 struct wiphy_work *wk; 8570 8571 lwiphy = container_of(work, struct lkpi_wiphy, wwk); 8572 wiphy = LWIPHY_TO_WIPHY(lwiphy); 8573 8574 wiphy_lock(wiphy); 8575 8576 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8577 wk = list_first_entry_or_null(&lwiphy->wwk_list, struct wiphy_work, entry); 8578 /* If there is nothing we do nothing. */ 8579 if (wk == NULL) { 8580 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8581 wiphy_unlock(wiphy); 8582 return; 8583 } 8584 list_del_init(&wk->entry); 8585 8586 /* More work to do? */ 8587 if (!list_empty(&lwiphy->wwk_list)) 8588 schedule_work(work); 8589 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8590 8591 /* Finally call the (*wiphy_work_fn)() function. */ 8592 wk->fn(wiphy, wk); 8593 8594 wiphy_unlock(wiphy); 8595 } 8596 8597 void 8598 linuxkpi_wiphy_work_queue(struct wiphy *wiphy, struct wiphy_work *wwk) 8599 { 8600 struct lkpi_wiphy *lwiphy; 8601 8602 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8603 8604 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8605 /* Do not double-queue. */ 8606 if (list_empty(&wwk->entry)) 8607 list_add_tail(&wwk->entry, &lwiphy->wwk_list); 8608 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8609 8610 /* 8611 * See how ieee80211_queue_work() work continues in Linux or if things 8612 * migrate here over time? 8613 * Use a system queue from linux/workqueue.h for now. 8614 */ 8615 queue_work(system_wq, &lwiphy->wwk); 8616 } 8617 8618 void 8619 linuxkpi_wiphy_work_cancel(struct wiphy *wiphy, struct wiphy_work *wwk) 8620 { 8621 struct lkpi_wiphy *lwiphy; 8622 8623 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8624 8625 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8626 /* Only cancel if queued. */ 8627 if (!list_empty(&wwk->entry)) 8628 list_del_init(&wwk->entry); 8629 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8630 } 8631 8632 void 8633 linuxkpi_wiphy_work_flush(struct wiphy *wiphy, struct wiphy_work *wwk) 8634 { 8635 struct lkpi_wiphy *lwiphy; 8636 struct wiphy_work *wk; 8637 8638 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8639 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8640 /* If wwk is unset, flush everything; called when wiphy is shut down. */ 8641 if (wwk != NULL && list_empty(&wwk->entry)) { 8642 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8643 return; 8644 } 8645 8646 while (!list_empty(&lwiphy->wwk_list)) { 8647 8648 wk = list_first_entry(&lwiphy->wwk_list, struct wiphy_work, 8649 entry); 8650 list_del_init(&wk->entry); 8651 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8652 wk->fn(wiphy, wk); 8653 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8654 if (wk == wwk) 8655 break; 8656 } 8657 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8658 } 8659 8660 void 8661 lkpi_wiphy_delayed_work_timer(struct timer_list *tl) 8662 { 8663 struct wiphy_delayed_work *wdwk; 8664 8665 wdwk = timer_container_of(wdwk, tl, timer); 8666 wiphy_work_queue(wdwk->wiphy, &wdwk->work); 8667 } 8668 8669 void 8670 linuxkpi_wiphy_delayed_work_queue(struct wiphy *wiphy, 8671 struct wiphy_delayed_work *wdwk, unsigned long delay) 8672 { 8673 if (delay == 0) { 8674 /* Run right away. */ 8675 del_timer(&wdwk->timer); 8676 wiphy_work_queue(wiphy, &wdwk->work); 8677 } else { 8678 wdwk->wiphy = wiphy; 8679 mod_timer(&wdwk->timer, jiffies + delay); 8680 } 8681 } 8682 8683 void 8684 linuxkpi_wiphy_delayed_work_cancel(struct wiphy *wiphy, 8685 struct wiphy_delayed_work *wdwk) 8686 { 8687 del_timer_sync(&wdwk->timer); 8688 wiphy_work_cancel(wiphy, &wdwk->work); 8689 } 8690 8691 void 8692 linuxkpi_wiphy_delayed_work_flush(struct wiphy *wiphy, 8693 struct wiphy_delayed_work *wdwk) 8694 { 8695 lockdep_assert_held(&wiphy->mtx); 8696 8697 del_timer_sync(&wdwk->timer); 8698 wiphy_work_flush(wiphy, &wdwk->work); 8699 } 8700 8701 /* -------------------------------------------------------------------------- */ 8702 8703 struct wiphy * 8704 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 8705 { 8706 struct lkpi_wiphy *lwiphy; 8707 struct wiphy *wiphy; 8708 8709 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 8710 if (lwiphy == NULL) 8711 return (NULL); 8712 lwiphy->ops = ops; 8713 8714 LKPI_80211_LWIPHY_WORK_LOCK_INIT(lwiphy); 8715 INIT_LIST_HEAD(&lwiphy->wwk_list); 8716 INIT_WORK(&lwiphy->wwk, lkpi_wiphy_work); 8717 8718 wiphy = LWIPHY_TO_WIPHY(lwiphy); 8719 8720 mutex_init(&wiphy->mtx); 8721 TODO(); 8722 8723 return (wiphy); 8724 } 8725 8726 void 8727 linuxkpi_wiphy_free(struct wiphy *wiphy) 8728 { 8729 struct lkpi_wiphy *lwiphy; 8730 8731 if (wiphy == NULL) 8732 return; 8733 8734 linuxkpi_wiphy_work_flush(wiphy, NULL); 8735 mutex_destroy(&wiphy->mtx); 8736 8737 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8738 LKPI_80211_LWIPHY_WORK_LOCK_DESTROY(lwiphy); 8739 8740 kfree(lwiphy); 8741 } 8742 8743 static void 8744 lkpi_wiphy_band_annotate(struct wiphy *wiphy) 8745 { 8746 int band; 8747 8748 for (band = 0; band < NUM_NL80211_BANDS; band++) { 8749 struct ieee80211_supported_band *supband; 8750 int i; 8751 8752 supband = wiphy->bands[band]; 8753 if (supband == NULL) 8754 continue; 8755 8756 switch (band) { 8757 case NL80211_BAND_2GHZ: 8758 case NL80211_BAND_5GHZ: 8759 break; 8760 default: 8761 #ifdef LINUXKPI_DEBUG_80211 8762 IMPROVE("band %d(%s) not yet supported", 8763 band, lkpi_nl80211_band_name(band)); 8764 /* For bands added here, also check lkpi_lsta_alloc(). */ 8765 #endif 8766 continue; 8767 } 8768 8769 /* Band bitrates are times 10; e.g., 55 is 5.5Mbit/s. */ 8770 for (i = 0; i < supband->n_bitrates; i++) { 8771 switch (band) { 8772 case NL80211_BAND_2GHZ: 8773 switch (supband->bitrates[i].bitrate) { 8774 case 110: 8775 case 55: 8776 case 20: 8777 case 10: 8778 supband->bitrates[i].flags |= 8779 IEEE80211_RATE_MANDATORY_B; 8780 /* FALLTHROUGH */ 8781 /* 11g only */ 8782 case 240: 8783 case 120: 8784 case 60: 8785 supband->bitrates[i].flags |= 8786 IEEE80211_RATE_MANDATORY_G; 8787 break; 8788 } 8789 break; 8790 case NL80211_BAND_5GHZ: 8791 switch (supband->bitrates[i].bitrate) { 8792 case 240: 8793 case 120: 8794 case 60: 8795 supband->bitrates[i].flags |= 8796 IEEE80211_RATE_MANDATORY_A; 8797 break; 8798 } 8799 break; 8800 } 8801 TRACE_RATES("band %d bitrate[%d/%u] %u flags %#010x", 8802 band, i, supband->n_bitrates, 8803 supband->bitrates[i].bitrate, 8804 supband->bitrates[i].flags); 8805 } 8806 } 8807 } 8808 8809 int 8810 linuxkpi_80211_wiphy_register(struct wiphy *wiphy) 8811 { 8812 TODO("Lots of checks and initialization"); 8813 8814 lkpi_wiphy_band_annotate(wiphy); 8815 8816 return (0); 8817 } 8818 8819 static uint32_t 8820 lkpi_cfg80211_calculate_bitrate_ht(struct rate_info *rate) 8821 { 8822 TODO("cfg80211_calculate_bitrate_ht"); 8823 return (rate->legacy); 8824 } 8825 8826 static uint32_t 8827 lkpi_cfg80211_calculate_bitrate_vht(struct rate_info *rate) 8828 { 8829 TODO("cfg80211_calculate_bitrate_vht"); 8830 return (rate->legacy); 8831 } 8832 8833 uint32_t 8834 linuxkpi_cfg80211_calculate_bitrate(struct rate_info *rate) 8835 { 8836 8837 /* Beware: order! */ 8838 if (rate->flags & RATE_INFO_FLAGS_MCS) 8839 return (lkpi_cfg80211_calculate_bitrate_ht(rate)); 8840 8841 if (rate->flags & RATE_INFO_FLAGS_VHT_MCS) 8842 return (lkpi_cfg80211_calculate_bitrate_vht(rate)); 8843 8844 IMPROVE("HE/EHT/..."); 8845 8846 return (rate->legacy); 8847 } 8848 8849 uint32_t 8850 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 8851 enum nl80211_band band) 8852 { 8853 8854 switch (band) { 8855 case NL80211_BAND_2GHZ: 8856 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 8857 break; 8858 case NL80211_BAND_5GHZ: 8859 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 8860 break; 8861 default: 8862 /* XXX abort, retry, error, panic? */ 8863 break; 8864 } 8865 8866 return (0); 8867 } 8868 8869 uint32_t 8870 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 8871 { 8872 8873 return (ieee80211_mhz2ieee(freq, 0)); 8874 } 8875 8876 #if 0 8877 static struct lkpi_sta * 8878 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 8879 { 8880 struct lkpi_sta *lsta, *temp; 8881 8882 rcu_read_lock(); 8883 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 8884 if (lsta->ni == ni) { 8885 rcu_read_unlock(); 8886 return (lsta); 8887 } 8888 } 8889 rcu_read_unlock(); 8890 8891 return (NULL); 8892 } 8893 #endif 8894 8895 struct ieee80211_sta * 8896 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 8897 { 8898 struct lkpi_vif *lvif; 8899 struct lkpi_sta *lsta; 8900 struct ieee80211_sta *sta; 8901 8902 lvif = VIF_TO_LVIF(vif); 8903 8904 rcu_read_lock(); 8905 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 8906 sta = LSTA_TO_STA(lsta); 8907 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 8908 rcu_read_unlock(); 8909 return (sta); 8910 } 8911 } 8912 rcu_read_unlock(); 8913 return (NULL); 8914 } 8915 8916 struct ieee80211_sta * 8917 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 8918 const uint8_t *addr, const uint8_t *ourvifaddr) 8919 { 8920 struct lkpi_hw *lhw; 8921 struct lkpi_vif *lvif; 8922 struct lkpi_sta *lsta; 8923 struct ieee80211_vif *vif; 8924 struct ieee80211_sta *sta; 8925 8926 lhw = wiphy_priv(hw->wiphy); 8927 sta = NULL; 8928 8929 LKPI_80211_LHW_LVIF_LOCK(lhw); 8930 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 8931 8932 /* XXX-BZ check our address from the vif. */ 8933 8934 vif = LVIF_TO_VIF(lvif); 8935 if (ourvifaddr != NULL && 8936 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 8937 continue; 8938 sta = linuxkpi_ieee80211_find_sta(vif, addr); 8939 if (sta != NULL) 8940 break; 8941 } 8942 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 8943 8944 if (sta != NULL) { 8945 lsta = STA_TO_LSTA(sta); 8946 if (!lsta->added_to_drv) 8947 return (NULL); 8948 } 8949 8950 return (sta); 8951 } 8952 8953 struct sk_buff * 8954 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 8955 struct ieee80211_txq *txq) 8956 { 8957 struct lkpi_txq *ltxq; 8958 struct lkpi_vif *lvif; 8959 struct sk_buff *skb; 8960 8961 IMPROVE("wiphy_lock? or assert?"); 8962 skb = NULL; 8963 ltxq = TXQ_TO_LTXQ(txq); 8964 ltxq->flags |= LKPI_TXQ_SEEN_DEQUEUE; 8965 8966 if ((ltxq->flags & (LKPI_TXQ_STOPPED|LKPI_TXQ_STOPPED_BA)) != 0) 8967 goto stopped; 8968 8969 lvif = VIF_TO_LVIF(ltxq->txq.vif); 8970 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 8971 ltxq->flags |= LKPI_TXQ_STOPPED; 8972 goto stopped; 8973 } 8974 8975 IMPROVE("hw(TX_FRAG_LIST)"); 8976 8977 LKPI_80211_LTXQ_LOCK(ltxq); 8978 skb = skb_dequeue(<xq->skbq); 8979 if (skb != NULL) 8980 ltxq->frms_dequeued++; 8981 LKPI_80211_LTXQ_UNLOCK(ltxq); 8982 8983 stopped: 8984 return (skb); 8985 } 8986 8987 void 8988 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 8989 unsigned long *frame_cnt, unsigned long *byte_cnt) 8990 { 8991 struct lkpi_txq *ltxq; 8992 struct sk_buff *skb; 8993 unsigned long fc, bc; 8994 8995 ltxq = TXQ_TO_LTXQ(txq); 8996 8997 fc = bc = 0; 8998 LKPI_80211_LTXQ_LOCK(ltxq); 8999 skb_queue_walk(<xq->skbq, skb) { 9000 fc++; 9001 bc += skb->len; 9002 } 9003 LKPI_80211_LTXQ_UNLOCK(ltxq); 9004 if (frame_cnt) 9005 *frame_cnt = fc; 9006 if (byte_cnt) 9007 *byte_cnt = bc; 9008 9009 /* Validate that this is doing the correct thing. */ 9010 /* Should we keep track on en/dequeue? */ 9011 IMPROVE(); 9012 } 9013 9014 /* 9015 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 9016 * The latter tries to derive the success status from the info flags 9017 * passed back from the driver. rawx_mit() saves the ni on the m and the 9018 * m on the skb for us to be able to give feedback to net80211. 9019 */ 9020 static void 9021 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 9022 int status) 9023 { 9024 struct ieee80211_node *ni; 9025 struct mbuf *m; 9026 9027 if (skb == NULL) 9028 return; 9029 9030 m = skb->m; 9031 skb->m = NULL; 9032 9033 if (m != NULL) { 9034 ni = m->m_pkthdr.PH_loc.ptr; 9035 /* Status: 0 is ok, != 0 is error. */ 9036 ieee80211_tx_complete(ni, m, status); 9037 /* ni & mbuf were consumed. */ 9038 } 9039 } 9040 9041 void 9042 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 9043 int status) 9044 { 9045 9046 _lkpi_ieee80211_free_txskb(hw, skb, status); 9047 kfree_skb(skb); 9048 } 9049 9050 void 9051 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 9052 struct ieee80211_tx_status *txstat) 9053 { 9054 struct sk_buff *skb; 9055 struct ieee80211_tx_info *info, _info = { }; 9056 struct ieee80211_ratectl_tx_status txs; 9057 struct ieee80211_node *ni; 9058 int status; 9059 9060 skb = txstat->skb; 9061 if (skb != NULL && skb->m != NULL) { 9062 struct mbuf *m; 9063 9064 m = skb->m; 9065 ni = m->m_pkthdr.PH_loc.ptr; 9066 memset(&txs, 0, sizeof(txs)); 9067 } else { 9068 ni = NULL; 9069 } 9070 9071 /* 9072 * If we have no info information on tx, set info to an all-zero struct 9073 * to make the code (and debug output) simpler. 9074 */ 9075 info = txstat->info; 9076 if (info == NULL) 9077 info = &_info; 9078 if (info->flags & IEEE80211_TX_STAT_ACK) { 9079 status = 0; /* No error. */ 9080 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 9081 } else { 9082 status = 1; 9083 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 9084 } 9085 9086 if (ni != NULL) { 9087 txs.pktlen = skb->len; 9088 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 9089 if (info->status.rates[0].count > 1) { 9090 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 9091 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 9092 } 9093 #if 0 /* Unused in net80211 currently. */ 9094 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 9095 txs.final_rate = info->status.rates[0].idx; 9096 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 9097 #endif 9098 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 9099 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 9100 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 9101 } 9102 9103 IMPROVE("only update rate if needed but that requires us to get a proper rate from mo_sta_statistics"); 9104 ieee80211_ratectl_tx_complete(ni, &txs); 9105 ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 9106 9107 #ifdef LINUXKPI_DEBUG_80211 9108 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 9109 printf("TX-RATE: %s: long_retries %d\n", __func__, 9110 txs.long_retries); 9111 } 9112 #endif 9113 } 9114 9115 #ifdef LINUXKPI_DEBUG_80211 9116 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 9117 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %b " 9118 "band %u hw_queue %u tx_time_est %d : " 9119 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 9120 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 9121 "tx_time %u flags %b " 9122 "status_driver_data [ %p %p ]\n", 9123 __func__, hw, skb, status, info->flags, IEEE80211_TX_INFO_FLAGS, 9124 info->band, info->hw_queue, info->tx_time_est, 9125 info->status.rates[0].idx, info->status.rates[0].count, 9126 info->status.rates[0].flags, 9127 info->status.rates[1].idx, info->status.rates[1].count, 9128 info->status.rates[1].flags, 9129 info->status.rates[2].idx, info->status.rates[2].count, 9130 info->status.rates[2].flags, 9131 info->status.rates[3].idx, info->status.rates[3].count, 9132 info->status.rates[3].flags, 9133 info->status.ack_signal, info->status.ampdu_ack_len, 9134 info->status.ampdu_len, info->status.antenna, 9135 info->status.tx_time, info->status.flags, IEEE80211_TX_STATUS_FLAGS, 9136 info->status.status_driver_data[0], 9137 info->status.status_driver_data[1]); 9138 #endif 9139 9140 if (txstat->free_list) { 9141 _lkpi_ieee80211_free_txskb(hw, skb, status); 9142 if (skb != NULL) 9143 list_add_tail(&skb->list, txstat->free_list); 9144 } else { 9145 linuxkpi_ieee80211_free_txskb(hw, skb, status); 9146 } 9147 } 9148 9149 void 9150 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 9151 { 9152 struct ieee80211_tx_status status; 9153 9154 memset(&status, 0, sizeof(status)); 9155 status.info = IEEE80211_SKB_CB(skb); 9156 status.skb = skb; 9157 /* sta, n_rates, rates, free_list? */ 9158 9159 ieee80211_tx_status_ext(hw, &status); 9160 } 9161 9162 /* 9163 * This is an internal bandaid for the moment for the way we glue 9164 * skbs and mbufs together for TX. Once we have skbs backed by 9165 * mbufs this should go away. 9166 * This is a public function but kept on the private KPI (lkpi_) 9167 * and is not exposed by a header file. 9168 */ 9169 static void 9170 lkpi_ieee80211_free_skb_mbuf(void *p) 9171 { 9172 struct ieee80211_node *ni; 9173 struct mbuf *m; 9174 9175 if (p == NULL) 9176 return; 9177 9178 m = (struct mbuf *)p; 9179 M_ASSERTPKTHDR(m); 9180 9181 ni = m->m_pkthdr.PH_loc.ptr; 9182 m->m_pkthdr.PH_loc.ptr = NULL; 9183 if (ni != NULL) 9184 ieee80211_free_node(ni); 9185 m_freem(m); 9186 } 9187 9188 void 9189 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 9190 struct delayed_work *w, int delay) 9191 { 9192 struct lkpi_hw *lhw; 9193 9194 /* Need to make sure hw is in a stable (non-suspended) state. */ 9195 IMPROVE(); 9196 9197 lhw = HW_TO_LHW(hw); 9198 queue_delayed_work(lhw->workq, w, delay); 9199 } 9200 9201 void 9202 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 9203 struct work_struct *w) 9204 { 9205 struct lkpi_hw *lhw; 9206 9207 /* Need to make sure hw is in a stable (non-suspended) state. */ 9208 IMPROVE(); 9209 9210 lhw = HW_TO_LHW(hw); 9211 queue_work(lhw->workq, w); 9212 } 9213 9214 struct sk_buff * 9215 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, const uint8_t *addr, 9216 const uint8_t *ssid, size_t ssid_len, size_t tailroom) 9217 { 9218 struct sk_buff *skb; 9219 struct ieee80211_frame *wh; 9220 uint8_t *p; 9221 size_t len; 9222 9223 len = sizeof(*wh); 9224 len += 2 + ssid_len; 9225 9226 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 9227 if (skb == NULL) 9228 return (NULL); 9229 9230 skb_reserve(skb, hw->extra_tx_headroom); 9231 9232 wh = skb_put_zero(skb, sizeof(*wh)); 9233 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 9234 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 9235 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 9236 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 9237 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 9238 9239 p = skb_put(skb, 2 + ssid_len); 9240 *p++ = IEEE80211_ELEMID_SSID; 9241 *p++ = ssid_len; 9242 if (ssid_len > 0) 9243 memcpy(p, ssid, ssid_len); 9244 9245 return (skb); 9246 } 9247 9248 struct sk_buff * 9249 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 9250 struct ieee80211_vif *vif) 9251 { 9252 struct lkpi_vif *lvif; 9253 struct ieee80211vap *vap; 9254 struct sk_buff *skb; 9255 struct ieee80211_frame_pspoll *psp; 9256 uint16_t v; 9257 9258 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 9259 if (skb == NULL) 9260 return (NULL); 9261 9262 skb_reserve(skb, hw->extra_tx_headroom); 9263 9264 lvif = VIF_TO_LVIF(vif); 9265 vap = LVIF_TO_VAP(lvif); 9266 9267 psp = skb_put_zero(skb, sizeof(*psp)); 9268 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 9269 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 9270 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 9271 memcpy(&psp->i_aid, &v, sizeof(v)); 9272 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 9273 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 9274 9275 return (skb); 9276 } 9277 9278 struct sk_buff * 9279 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 9280 struct ieee80211_vif *vif, int linkid, bool qos) 9281 { 9282 struct sk_buff *skb; 9283 struct ieee80211_frame *nullf; 9284 9285 IMPROVE("linkid"); 9286 9287 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 9288 if (skb == NULL) 9289 return (NULL); 9290 9291 skb_reserve(skb, hw->extra_tx_headroom); 9292 9293 nullf = skb_put_zero(skb, sizeof(*nullf)); 9294 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 9295 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 9296 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 9297 9298 /* XXX-BZ if link is given, this is different. */ 9299 IEEE80211_ADDR_COPY(nullf->i_addr1, vif->cfg.ap_addr); 9300 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 9301 IEEE80211_ADDR_COPY(nullf->i_addr3, vif->cfg.ap_addr); 9302 9303 return (skb); 9304 } 9305 9306 struct wireless_dev * 9307 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 9308 { 9309 struct lkpi_vif *lvif; 9310 9311 lvif = VIF_TO_LVIF(vif); 9312 return (&lvif->wdev); 9313 } 9314 9315 void 9316 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 9317 { 9318 struct lkpi_vif *lvif; 9319 struct ieee80211vap *vap; 9320 enum ieee80211_state nstate; 9321 int arg; 9322 9323 lvif = VIF_TO_LVIF(vif); 9324 vap = LVIF_TO_VAP(lvif); 9325 9326 /* 9327 * Go to init; otherwise we need to elaborately check state and 9328 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 9329 * Let the statemachine handle all neccessary changes. 9330 */ 9331 nstate = IEEE80211_S_INIT; 9332 arg = 0; /* Not a valid reason. */ 9333 9334 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s (synched %d, assoc %d " 9335 "beacons %d dtim_period %d)\n", __func__, vif, vap, 9336 ieee80211_state_name[vap->iv_state], 9337 lvif->lvif_bss_synched, vif->cfg.assoc, lvif->beacons, 9338 vif->bss_conf.dtim_period); 9339 ieee80211_new_state(vap, nstate, arg); 9340 } 9341 9342 void 9343 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 9344 { 9345 struct lkpi_vif *lvif; 9346 struct ieee80211vap *vap; 9347 9348 lvif = VIF_TO_LVIF(vif); 9349 vap = LVIF_TO_VAP(lvif); 9350 9351 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s (synched %d, assoc %d " 9352 "beacons %d dtim_period %d)\n", __func__, vif, vap, 9353 ieee80211_state_name[vap->iv_state], 9354 lvif->lvif_bss_synched, vif->cfg.assoc, lvif->beacons, 9355 vif->bss_conf.dtim_period); 9356 ieee80211_beacon_miss(vap->iv_ic); 9357 } 9358 9359 /* -------------------------------------------------------------------------- */ 9360 9361 void 9362 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 9363 { 9364 struct lkpi_hw *lhw; 9365 struct lkpi_vif *lvif; 9366 struct ieee80211_vif *vif; 9367 int ac_count, ac; 9368 9369 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 9370 __func__, qnum, hw->queues, hw)); 9371 9372 lhw = wiphy_priv(hw->wiphy); 9373 9374 /* See lkpi_ic_vap_create(). */ 9375 if (hw->queues >= IEEE80211_NUM_ACS) 9376 ac_count = IEEE80211_NUM_ACS; 9377 else 9378 ac_count = 1; 9379 9380 LKPI_80211_LHW_LVIF_LOCK(lhw); 9381 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 9382 9383 vif = LVIF_TO_VIF(lvif); 9384 for (ac = 0; ac < ac_count; ac++) { 9385 IMPROVE_TXQ("LOCKING"); 9386 if (qnum == vif->hw_queue[ac]) { 9387 #ifdef LINUXKPI_DEBUG_80211 9388 /* 9389 * For now log this to better understand 9390 * how this is supposed to work. 9391 */ 9392 if (lvif->hw_queue_stopped[ac] && 9393 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 9394 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 9395 "lvif %p vif %p ac %d qnum %d already " 9396 "stopped\n", __func__, __LINE__, 9397 lhw, hw, lvif, vif, ac, qnum); 9398 #endif 9399 lvif->hw_queue_stopped[ac] = true; 9400 } 9401 } 9402 } 9403 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 9404 } 9405 9406 void 9407 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 9408 { 9409 int i; 9410 9411 IMPROVE_TXQ("Locking; do we need further info?"); 9412 for (i = 0; i < hw->queues; i++) 9413 linuxkpi_ieee80211_stop_queue(hw, i); 9414 } 9415 9416 9417 static void 9418 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 9419 { 9420 struct lkpi_hw *lhw; 9421 struct lkpi_vif *lvif; 9422 struct lkpi_sta *lsta; 9423 int ac_count, ac, tid; 9424 9425 /* See lkpi_ic_vap_create(). */ 9426 if (hw->queues >= IEEE80211_NUM_ACS) 9427 ac_count = IEEE80211_NUM_ACS; 9428 else 9429 ac_count = 1; 9430 9431 lhw = wiphy_priv(hw->wiphy); 9432 9433 IMPROVE_TXQ("Locking"); 9434 LKPI_80211_LHW_LVIF_LOCK(lhw); 9435 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 9436 struct ieee80211_vif *vif; 9437 9438 vif = LVIF_TO_VIF(lvif); 9439 for (ac = 0; ac < ac_count; ac++) { 9440 9441 if (hwq == vif->hw_queue[ac]) { 9442 9443 /* XXX-BZ what about software scan? */ 9444 9445 #ifdef LINUXKPI_DEBUG_80211 9446 /* 9447 * For now log this to better understand 9448 * how this is supposed to work. 9449 */ 9450 if (!lvif->hw_queue_stopped[ac] && 9451 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 9452 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 9453 "lvif %p vif %p ac %d hw_q not stopped\n", 9454 __func__, __LINE__, 9455 lhw, hw, lvif, vif, ac); 9456 #endif 9457 lvif->hw_queue_stopped[ac] = false; 9458 9459 rcu_read_lock(); 9460 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 9461 struct ieee80211_sta *sta; 9462 9463 sta = LSTA_TO_STA(lsta); 9464 for (tid = 0; tid < nitems(sta->txq); tid++) { 9465 struct lkpi_txq *ltxq; 9466 9467 if (sta->txq[tid] == NULL) 9468 continue; 9469 9470 if (sta->txq[tid]->ac != ac) 9471 continue; 9472 9473 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 9474 if ((ltxq->flags & LKPI_TXQ_STOPPED) == 0) 9475 continue; 9476 9477 ltxq->flags &= ~LKPI_TXQ_STOPPED; 9478 9479 if (!skb_queue_empty(<xq->skbq)) 9480 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid], false); 9481 } 9482 } 9483 rcu_read_unlock(); 9484 } 9485 } 9486 } 9487 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 9488 } 9489 9490 static void 9491 lkpi_ieee80211_wake_queues_locked(struct ieee80211_hw *hw) 9492 { 9493 int i; 9494 9495 IMPROVE_TXQ("Is this all/enough here?"); 9496 for (i = 0; i < hw->queues; i++) 9497 lkpi_ieee80211_wake_queues(hw, i); 9498 } 9499 9500 void 9501 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 9502 { 9503 struct lkpi_hw *lhw; 9504 unsigned long flags; 9505 9506 lhw = HW_TO_LHW(hw); 9507 9508 spin_lock_irqsave(&lhw->txq_lock, flags); 9509 lkpi_ieee80211_wake_queues_locked(hw); 9510 spin_unlock_irqrestore(&lhw->txq_lock, flags); 9511 } 9512 9513 void 9514 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 9515 { 9516 struct lkpi_hw *lhw; 9517 unsigned long flags; 9518 9519 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 9520 __func__, qnum, hw->queues, hw)); 9521 9522 lhw = HW_TO_LHW(hw); 9523 9524 spin_lock_irqsave(&lhw->txq_lock, flags); 9525 lkpi_ieee80211_wake_queues(hw, qnum); 9526 spin_unlock_irqrestore(&lhw->txq_lock, flags); 9527 } 9528 9529 void 9530 linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 9531 struct ieee80211_txq *txq) 9532 { 9533 struct lkpi_hw *lhw; 9534 9535 lhw = HW_TO_LHW(hw); 9536 9537 LKPI_80211_LHW_TXQ_LOCK(lhw); 9538 ieee80211_txq_schedule_start(hw, txq->ac); 9539 do { 9540 struct lkpi_txq *ltxq; 9541 struct ieee80211_txq *ntxq; 9542 struct ieee80211_tx_control control; 9543 struct sk_buff *skb; 9544 9545 ntxq = ieee80211_next_txq(hw, txq->ac); 9546 if (ntxq == NULL) 9547 break; 9548 ltxq = TXQ_TO_LTXQ(ntxq); 9549 9550 memset(&control, 0, sizeof(control)); 9551 control.sta = ntxq->sta; 9552 do { 9553 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 9554 if (skb == NULL) 9555 break; 9556 ltxq->frms_tx++; 9557 lkpi_80211_mo_tx(hw, &control, skb); 9558 } while(1); 9559 9560 ieee80211_return_txq(hw, ntxq, false); 9561 } while (1); 9562 ieee80211_txq_schedule_end(hw, txq->ac); 9563 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 9564 } 9565 9566 /* -------------------------------------------------------------------------- */ 9567 9568 /* This is just hardware queues. */ 9569 /* 9570 * Being called from the driver thus use _bh() locking. 9571 */ 9572 void 9573 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 9574 { 9575 struct lkpi_hw *lhw; 9576 9577 lhw = HW_TO_LHW(hw); 9578 9579 if (ac >= IEEE80211_NUM_ACS) { 9580 ic_printf(lhw->ic, "%s: ac %u out of bounds.\n", __func__, ac); 9581 return; 9582 } 9583 9584 spin_lock_bh(&lhw->txq_scheduled_lock[ac]); 9585 IMPROVE("check AIRTIME_FAIRNESS"); 9586 if (++lhw->txq_generation[ac] == 0) 9587 lhw->txq_generation[ac]++; 9588 spin_unlock_bh(&lhw->txq_scheduled_lock[ac]); 9589 } 9590 9591 struct ieee80211_txq * 9592 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 9593 { 9594 struct lkpi_hw *lhw; 9595 struct ieee80211_txq *txq; 9596 struct lkpi_txq *ltxq; 9597 9598 lhw = HW_TO_LHW(hw); 9599 txq = NULL; 9600 9601 if (ac >= IEEE80211_NUM_ACS) { 9602 ic_printf(lhw->ic, "%s: ac %u out of bounds.\n", __func__, ac); 9603 return (NULL); 9604 } 9605 9606 spin_lock_bh(&lhw->txq_scheduled_lock[ac]); 9607 9608 /* Check that we are scheduled. */ 9609 if (lhw->txq_generation[ac] == 0) 9610 goto out; 9611 9612 ltxq = TAILQ_FIRST(&lhw->txq_scheduled[ac]); 9613 if (ltxq == NULL) 9614 goto out; 9615 if (ltxq->txq_generation == lhw->txq_generation[ac]) 9616 goto out; 9617 if ((ltxq->flags & (LKPI_TXQ_STOPPED|LKPI_TXQ_STOPPED_BA)) != 0) 9618 goto out; 9619 9620 IMPROVE("check AIRTIME_FAIRNESS"); 9621 9622 TAILQ_REMOVE(&lhw->txq_scheduled[ac], ltxq, txq_entry); 9623 ltxq->txq_generation = lhw->txq_generation[ac]; 9624 txq = <xq->txq; 9625 TAILQ_ELEM_INIT(ltxq, txq_entry); 9626 9627 out: 9628 spin_unlock_bh(&lhw->txq_scheduled_lock[ac]); 9629 9630 return (txq); 9631 } 9632 9633 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 9634 struct ieee80211_txq *txq, bool withoutpkts) 9635 { 9636 struct lkpi_hw *lhw; 9637 struct lkpi_txq *ltxq; 9638 bool ltxq_empty; 9639 9640 ltxq = TXQ_TO_LTXQ(txq); 9641 9642 /* Only schedule if work to do or asked to anyway. */ 9643 LKPI_80211_LTXQ_LOCK(ltxq); 9644 ltxq_empty = skb_queue_empty(<xq->skbq); 9645 LKPI_80211_LTXQ_UNLOCK(ltxq); 9646 if (!withoutpkts && ltxq_empty) 9647 goto out; 9648 9649 lhw = HW_TO_LHW(hw); 9650 spin_lock_bh(&lhw->txq_scheduled_lock[txq->ac]); 9651 /* 9652 * Make sure we do not double-schedule. We do this by checking tqe_prev, 9653 * the previous entry in our tailq. tqe_prev is always valid if this entry 9654 * is queued, tqe_next may be NULL if this is the only element in the list. 9655 */ 9656 if (ltxq->txq_entry.tqe_prev != NULL) 9657 goto unlock; 9658 9659 TAILQ_INSERT_TAIL(&lhw->txq_scheduled[txq->ac], ltxq, txq_entry); 9660 unlock: 9661 spin_unlock_bh(&lhw->txq_scheduled_lock[txq->ac]); 9662 9663 out: 9664 return; 9665 } 9666 9667 /* -------------------------------------------------------------------------- */ 9668 9669 struct lkpi_cfg80211_bss { 9670 u_int refcnt; 9671 struct cfg80211_bss bss; 9672 }; 9673 9674 struct lkpi_cfg80211_get_bss_iter_lookup { 9675 struct wiphy *wiphy; 9676 struct linuxkpi_ieee80211_channel *chan; 9677 const uint8_t *bssid; 9678 const uint8_t *ssid; 9679 size_t ssid_len; 9680 enum ieee80211_bss_type bss_type; 9681 enum ieee80211_privacy privacy; 9682 9683 /* 9684 * Something to store a copy of the result as the net80211 scan cache 9685 * is not refoucnted so a scan entry might go away any time. 9686 */ 9687 bool match; 9688 struct cfg80211_bss *bss; 9689 }; 9690 9691 static void 9692 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 9693 { 9694 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 9695 size_t ielen; 9696 9697 lookup = arg; 9698 9699 /* Do not try to find another match. */ 9700 if (lookup->match) 9701 return; 9702 9703 /* Nothing to store result. */ 9704 if (lookup->bss == NULL) 9705 return; 9706 9707 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 9708 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 9709 /* We have no idea what to compare to as the drivers only request ANY */ 9710 return; 9711 } 9712 9713 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 9714 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 9715 /* We have no idea what to compare to as the drivers only request ANY */ 9716 return; 9717 } 9718 9719 if (lookup->chan != NULL) { 9720 struct linuxkpi_ieee80211_channel *chan; 9721 9722 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 9723 se->se_chan->ic_freq); 9724 if (chan == NULL || chan != lookup->chan) 9725 return; 9726 } 9727 9728 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 9729 return; 9730 9731 if (lookup->ssid) { 9732 if (lookup->ssid_len != se->se_ssid[1] || 9733 se->se_ssid[1] == 0) 9734 return; 9735 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 9736 return; 9737 } 9738 9739 ielen = se->se_ies.len; 9740 9741 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 9742 M_LKPI80211, M_NOWAIT | M_ZERO); 9743 if (lookup->bss->ies == NULL) 9744 return; 9745 9746 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 9747 lookup->bss->ies->len = ielen; 9748 if (ielen) 9749 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 9750 9751 lookup->match = true; 9752 } 9753 9754 struct cfg80211_bss * 9755 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 9756 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 9757 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 9758 { 9759 struct lkpi_cfg80211_bss *lbss; 9760 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 9761 struct lkpi_hw *lhw; 9762 struct ieee80211vap *vap; 9763 9764 lhw = wiphy_priv(wiphy); 9765 9766 /* Let's hope we can alloc. */ 9767 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 9768 if (lbss == NULL) { 9769 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 9770 return (NULL); 9771 } 9772 9773 lookup.wiphy = wiphy; 9774 lookup.chan = chan; 9775 lookup.bssid = bssid; 9776 lookup.ssid = ssid; 9777 lookup.ssid_len = ssid_len; 9778 lookup.bss_type = bss_type; 9779 lookup.privacy = privacy; 9780 lookup.match = false; 9781 lookup.bss = &lbss->bss; 9782 9783 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 9784 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 9785 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 9786 if (!lookup.match) { 9787 free(lbss, M_LKPI80211); 9788 return (NULL); 9789 } 9790 9791 refcount_init(&lbss->refcnt, 1); 9792 return (&lbss->bss); 9793 } 9794 9795 void 9796 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 9797 { 9798 struct lkpi_cfg80211_bss *lbss; 9799 9800 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 9801 9802 /* Free everything again on refcount ... */ 9803 if (refcount_release(&lbss->refcnt)) { 9804 free(lbss->bss.ies, M_LKPI80211); 9805 free(lbss, M_LKPI80211); 9806 } 9807 } 9808 9809 void 9810 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 9811 { 9812 struct lkpi_hw *lhw; 9813 struct ieee80211com *ic; 9814 struct ieee80211vap *vap; 9815 9816 lhw = wiphy_priv(wiphy); 9817 ic = lhw->ic; 9818 9819 /* 9820 * If we haven't called ieee80211_ifattach() yet 9821 * or there is no VAP, there are no scans to flush. 9822 */ 9823 if (ic == NULL || 9824 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 9825 return; 9826 9827 /* Should only happen on the current one? Not seen it late enough. */ 9828 IEEE80211_LOCK(ic); 9829 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 9830 ieee80211_scan_flush(vap); 9831 IEEE80211_UNLOCK(ic); 9832 } 9833 9834 /* -------------------------------------------------------------------------- */ 9835 9836 static bool 9837 cfg80211_chan_def_are_same(struct cfg80211_chan_def *cd1, 9838 struct cfg80211_chan_def *cd2) 9839 { 9840 9841 if (cd1 == cd2) 9842 return (true); 9843 9844 if (cd1 == NULL || cd2 == NULL) 9845 return (false); 9846 9847 if (cd1->chan != cd2->chan) 9848 return (false); 9849 9850 if (cd1->width != cd2->width) 9851 return (false); 9852 9853 if (cd1->center_freq1 != cd2->center_freq1) 9854 return (false); 9855 9856 if (cd1->center_freq2 != cd2->center_freq2) 9857 return (false); 9858 9859 if (cd1->punctured != cd2->punctured) 9860 return (false); 9861 9862 return (true); 9863 } 9864 9865 /* 9866 * hw->conf get initialized/set in various places for us: 9867 * - linuxkpi_ieee80211_alloc_hw(): flags 9868 * - linuxkpi_ieee80211_ifattach(): chandef 9869 * - lkpi_ic_vap_create(): listen_interval 9870 * - lkpi_ic_set_channel(): chandef, flags 9871 */ 9872 9873 static int 9874 lkpi_80211_update_chandef(struct ieee80211_hw *hw, 9875 struct ieee80211_chanctx_conf *new) 9876 { 9877 struct lkpi_hw *lhw; 9878 struct cfg80211_chan_def *cd; 9879 uint32_t changed; 9880 int error; 9881 bool same; 9882 9883 lockdep_assert_wiphy(hw->wiphy); 9884 9885 lhw = HW_TO_LHW(hw); 9886 if (!lhw->emulate_chanctx) 9887 return (0); 9888 9889 if (new == NULL || new->def.chan == NULL) { 9890 /* 9891 * In case of remove "new" is NULL, we need to get us to some 9892 * basic channel width but we'd also need to set the channel 9893 * accordingly somewhere. 9894 * The same is true if we are scanning in which case the 9895 * scan_chandef should have a channel set. 9896 */ 9897 if (lhw->scan_chandef.chan != NULL) { 9898 #ifdef LINUXKPI_DEBUG_80211 9899 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9900 ic_printf(lhw->ic, "%s:%d: using scan_chandef %p\n", 9901 __func__, __LINE__, &lhw->scan_chandef); 9902 #endif 9903 cd = &lhw->scan_chandef; 9904 } else { 9905 #ifdef LINUXKPI_DEBUG_80211 9906 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9907 ic_printf(lhw->ic, "%s:%d: using dflt_chandef %p\n", 9908 __func__, __LINE__, &lhw->dflt_chandef); 9909 #endif 9910 cd = &lhw->dflt_chandef; 9911 } 9912 } else { 9913 #ifdef LINUXKPI_DEBUG_80211 9914 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9915 ic_printf(lhw->ic, "%s:%d: using chanctx %p chandef %p\n", 9916 __func__, __LINE__, new, &new->def); 9917 #endif 9918 cd = &new->def; 9919 } 9920 9921 changed = 0; 9922 same = cfg80211_chan_def_are_same(cd, &hw->conf.chandef); 9923 if (!same) { 9924 /* Copy; the chan pointer is fine and will stay valid. */ 9925 hw->conf.chandef = *cd; 9926 changed |= IEEE80211_CONF_CHANGE_CHANNEL; 9927 } 9928 IMPROVE("IEEE80211_CONF_CHANGE_PS, IEEE80211_CONF_CHANGE_POWER"); 9929 9930 #ifdef LINUXKPI_DEBUG_80211 9931 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9932 ic_printf(lhw->ic, "%s:%d: chanctx %p { %u } cd %p { %u } " 9933 "hw->conf.chandef %p { %u %d %u %u %u }, " 9934 "changed %#04x same %d\n", 9935 __func__, __LINE__, 9936 new, (new != NULL && new->def.chan != NULL) ? 9937 new->def.chan->center_freq : 0, 9938 cd, cd->chan->center_freq, 9939 &hw->conf.chandef, hw->conf.chandef.chan->center_freq, 9940 hw->conf.chandef.width, 9941 hw->conf.chandef.center_freq1, 9942 hw->conf.chandef.center_freq2, 9943 hw->conf.chandef.punctured, 9944 changed, same); 9945 #endif 9946 9947 if (changed == 0) 9948 return (0); 9949 9950 error = lkpi_80211_mo_config(hw, changed); 9951 return (error); 9952 } 9953 9954 int 9955 ieee80211_emulate_add_chanctx(struct ieee80211_hw *hw, 9956 struct ieee80211_chanctx_conf *chanctx_conf) 9957 { 9958 int error; 9959 9960 lockdep_assert_wiphy(hw->wiphy); 9961 9962 #ifdef LINUXKPI_DEBUG_80211 9963 if ((linuxkpi_debug_80211 & D80211_TRACE) != 0) { 9964 struct lkpi_hw *lhw; 9965 9966 lhw = HW_TO_LHW(hw); 9967 ic_printf(lhw->ic, "%s:%d: chanctx_conf %p\n", 9968 __func__, __LINE__, chanctx_conf); 9969 } 9970 #endif 9971 9972 hw->conf.radar_enabled = chanctx_conf->radar_enabled; 9973 error = lkpi_80211_update_chandef(hw, chanctx_conf); 9974 return (error); 9975 } 9976 9977 void 9978 ieee80211_emulate_remove_chanctx(struct ieee80211_hw *hw, 9979 struct ieee80211_chanctx_conf *chanctx_conf __unused) 9980 { 9981 9982 lockdep_assert_wiphy(hw->wiphy); 9983 9984 #ifdef LINUXKPI_DEBUG_80211 9985 if ((linuxkpi_debug_80211 & D80211_TRACE) != 0) { 9986 struct lkpi_hw *lhw; 9987 9988 lhw = HW_TO_LHW(hw); 9989 ic_printf(lhw->ic, "%s:%d: chanctx_conf %p\n", 9990 __func__, __LINE__, chanctx_conf); 9991 } 9992 #endif 9993 9994 hw->conf.radar_enabled = false; 9995 lkpi_80211_update_chandef(hw, NULL); 9996 } 9997 9998 void 9999 ieee80211_emulate_change_chanctx(struct ieee80211_hw *hw, 10000 struct ieee80211_chanctx_conf *chanctx_conf, uint32_t changed __unused) 10001 { 10002 10003 lockdep_assert_wiphy(hw->wiphy); 10004 10005 #ifdef LINUXKPI_DEBUG_80211 10006 if ((linuxkpi_debug_80211 & D80211_TRACE) != 0) { 10007 struct lkpi_hw *lhw; 10008 10009 lhw = HW_TO_LHW(hw); 10010 ic_printf(lhw->ic, "%s:%d: chanctx_conf %p\n", 10011 __func__, __LINE__, chanctx_conf); 10012 } 10013 #endif 10014 10015 hw->conf.radar_enabled = chanctx_conf->radar_enabled; 10016 lkpi_80211_update_chandef(hw, chanctx_conf); 10017 } 10018 10019 int 10020 ieee80211_emulate_switch_vif_chanctx(struct ieee80211_hw *hw, 10021 struct ieee80211_vif_chanctx_switch *vifs, int n_vifs, 10022 enum ieee80211_chanctx_switch_mode mode __unused) 10023 { 10024 struct ieee80211_chanctx_conf *chanctx_conf; 10025 int error; 10026 10027 lockdep_assert_wiphy(hw->wiphy); 10028 10029 /* Sanity check. */ 10030 if (n_vifs <= 0) 10031 return (-EINVAL); 10032 if (vifs == NULL || vifs[0].new_ctx == NULL) 10033 return (-EINVAL); 10034 10035 /* 10036 * What to do if n_vifs > 1? 10037 * Does that make sense for drivers not supporting chanctx? 10038 */ 10039 hw->conf.radar_enabled = vifs[0].new_ctx->radar_enabled; 10040 chanctx_conf = vifs[0].new_ctx; 10041 error = lkpi_80211_update_chandef(hw, chanctx_conf); 10042 return (error); 10043 } 10044 10045 /* -------------------------------------------------------------------------- */ 10046 /* LinuxKPI 802.11 PM. */ 10047 int 10048 lkpi_80211_suspend(struct ieee80211com *ic, pm_message_t state) 10049 { 10050 struct lkpi_hw *lhw; 10051 struct ieee80211_hw *hw; 10052 int error; 10053 10054 lhw = ic->ic_softc; 10055 hw = LHW_TO_HW(lhw); 10056 error = 0; 10057 10058 /* Check: 10059 * - device_set_wakeup_capable() / device_can_wakeup() 10060 * - hw->wiphy->wowlan to be non-NULL, if so contents. 10061 * - hw->wiphy->max_sched_scan_ssids (rtw88) 10062 */ 10063 if ((lkpi_suspend_type & 0x2) != 0) { 10064 struct cfg80211_wowlan wowlan; 10065 10066 IMPROVE("various options for WoWLAN"); 10067 memset(&wowlan, 0, sizeof(wowlan)); 10068 wiphy_lock(hw->wiphy); 10069 error = lkpi_80211_mo_suspend(hw, &wowlan); 10070 wiphy_unlock(hw->wiphy); 10071 if (error == EOPNOTSUPP) 10072 error = 0; 10073 } 10074 if ((lkpi_suspend_type & 0x1) != 0) { 10075 struct lkpi_vif *lvif; 10076 10077 ieee80211_suspend_all(ic); 10078 10079 wiphy_lock(hw->wiphy); 10080 /* 10081 * At the end of this net80211 will run a task to call 10082 * (*ic_parent)() which is entirely unhelpful as we do not 10083 * know when it will happen. So deal with it here. 10084 */ 10085 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 10086 lkpi_80211_mo_remove_interface(hw, LVIF_TO_VIF(lvif)); 10087 } 10088 10089 if ((lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) != 0) 10090 lkpi_80211_mo_stop(hw, true); 10091 wiphy_unlock(hw->wiphy); 10092 } 10093 10094 if (error < 0) 10095 error = -error; 10096 10097 if (error != 0) 10098 ic_printf(ic, "%s: SUSPEND FAILED: %d\n", __func__, error); 10099 10100 return (error); 10101 } 10102 10103 int 10104 lkpi_80211_resume(struct ieee80211com *ic) 10105 { 10106 struct lkpi_hw *lhw; 10107 struct ieee80211_hw *hw; 10108 int error; 10109 bool hw_scan_running; 10110 10111 lhw = ic->ic_softc; 10112 hw = LHW_TO_HW(lhw); 10113 error = 0; 10114 10115 /* 10116 * Ongoing HW scans during suspend are a problem on resume. 10117 * Be verbose about that. 10118 */ 10119 LKPI_80211_LHW_SCAN_LOCK(lhw); 10120 hw_scan_running = (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) != 0; 10121 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 10122 if (hw_scan_running) 10123 ic_printf(ic, "%s: WARNING: ongoing hw scan on resume!\n", __func__); 10124 10125 if ((lkpi_suspend_type & 0x1) != 0) { 10126 struct lkpi_vif *lvif; 10127 10128 wiphy_lock(hw->wiphy); 10129 error = lkpi_80211_mo_start(hw); 10130 if (error != 0 && error != EEXIST) { 10131 ic_printf(ic, "%s: mo_start failed: %d\n", 10132 __func__, error); 10133 wiphy_unlock(hw->wiphy); 10134 goto err; 10135 } 10136 10137 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 10138 error = lkpi_80211_mo_add_interface(hw, LVIF_TO_VIF(lvif)); 10139 if (error != 0) { 10140 struct ieee80211vap *vap; 10141 10142 vap = LVIF_TO_VAP(lvif); 10143 ic_printf(ic, "%s: mo_add_interface %s failed: %d\n", 10144 __func__, if_name(vap->iv_ifp), error); 10145 wiphy_unlock(hw->wiphy); 10146 goto err; 10147 } 10148 } 10149 wiphy_unlock(hw->wiphy); 10150 10151 ieee80211_resume_all(ic); 10152 } 10153 10154 if ((lkpi_suspend_type & 0x2) != 0) { 10155 wiphy_lock(hw->wiphy); 10156 error = lkpi_80211_mo_resume(hw); 10157 wiphy_unlock(hw->wiphy); 10158 if (error == EOPNOTSUPP) 10159 error = 0; 10160 } 10161 10162 err: 10163 if (error < 0) 10164 error = -error; 10165 10166 return (error); 10167 } 10168 10169 /* -------------------------------------------------------------------------- */ 10170 MODULE_VERSION(linuxkpi_wlan, 1); 10171 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 10172 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 10173