1 /*- 2 * Copyright (c) 2020-2026 The FreeBSD Foundation 3 * Copyright (c) 2020-2026 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 case WLAN_CIPHER_SUITE_SMS4: 1363 return ("WPI-SMS4"); 1364 default: 1365 return ("??"); 1366 } 1367 } 1368 1369 static uint32_t 1370 lkpi_l80211_to_net80211_cyphers(struct ieee80211com *ic, 1371 uint32_t wlan_cipher_suite) 1372 { 1373 switch (wlan_cipher_suite) { 1374 case WLAN_CIPHER_SUITE_WEP40: 1375 return (IEEE80211_CRYPTO_WEP); 1376 case WLAN_CIPHER_SUITE_WEP104: 1377 return (IEEE80211_CRYPTO_WEP); 1378 case WLAN_CIPHER_SUITE_TKIP: 1379 return (IEEE80211_CRYPTO_TKIP); 1380 case WLAN_CIPHER_SUITE_CCMP: 1381 return (IEEE80211_CRYPTO_AES_CCM); 1382 case WLAN_CIPHER_SUITE_CCMP_256: 1383 return (IEEE80211_CRYPTO_AES_CCM_256); 1384 case WLAN_CIPHER_SUITE_GCMP: 1385 return (IEEE80211_CRYPTO_AES_GCM_128); 1386 case WLAN_CIPHER_SUITE_GCMP_256: 1387 return (IEEE80211_CRYPTO_AES_GCM_256); 1388 case WLAN_CIPHER_SUITE_AES_CMAC: 1389 return (IEEE80211_CRYPTO_BIP_CMAC_128); 1390 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1391 return (IEEE80211_CRYPTO_BIP_CMAC_256); 1392 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1393 return (IEEE80211_CRYPTO_BIP_GMAC_128); 1394 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1395 return (IEEE80211_CRYPTO_BIP_GMAC_256); 1396 default: 1397 ic_printf(ic, "%s: unknown/unsupported WLAN Cipher Suite %#08x | %u (%s)\n", 1398 __func__, 1399 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff, 1400 lkpi_cipher_suite_to_name(wlan_cipher_suite)); 1401 return (0); 1402 } 1403 } 1404 1405 static uint32_t 1406 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 1407 { 1408 1409 switch (cipher) { 1410 case IEEE80211_CIPHER_WEP: 1411 if (keylen == (40/NBBY)) 1412 return (WLAN_CIPHER_SUITE_WEP40); 1413 else if (keylen == (104/NBBY)) 1414 return (WLAN_CIPHER_SUITE_WEP104); 1415 else { 1416 printf("%s: WEP with unsupported keylen %d\n", 1417 __func__, keylen * NBBY); 1418 return (0); 1419 } 1420 break; 1421 case IEEE80211_CIPHER_TKIP: 1422 return (WLAN_CIPHER_SUITE_TKIP); 1423 case IEEE80211_CIPHER_AES_CCM: 1424 return (WLAN_CIPHER_SUITE_CCMP); 1425 case IEEE80211_CIPHER_AES_CCM_256: 1426 return (WLAN_CIPHER_SUITE_CCMP_256); 1427 case IEEE80211_CIPHER_AES_GCM_128: 1428 return (WLAN_CIPHER_SUITE_GCMP); 1429 case IEEE80211_CIPHER_AES_GCM_256: 1430 return (WLAN_CIPHER_SUITE_GCMP_256); 1431 case IEEE80211_CIPHER_BIP_CMAC_128: 1432 return (WLAN_CIPHER_SUITE_AES_CMAC); 1433 case IEEE80211_CIPHER_BIP_CMAC_256: 1434 return (WLAN_CIPHER_SUITE_BIP_CMAC_256); 1435 case IEEE80211_CIPHER_BIP_GMAC_128: 1436 return (WLAN_CIPHER_SUITE_BIP_GMAC_128); 1437 case IEEE80211_CIPHER_BIP_GMAC_256: 1438 return (WLAN_CIPHER_SUITE_BIP_GMAC_256); 1439 1440 case IEEE80211_CIPHER_AES_OCB: 1441 case IEEE80211_CIPHER_TKIPMIC: 1442 /* 1443 * TKIP w/ hw MIC support 1444 * (gone wrong; should really be a crypto flag in net80211). 1445 */ 1446 case IEEE80211_CIPHER_CKIP: 1447 case IEEE80211_CIPHER_NONE: 1448 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 1449 break; 1450 default: 1451 printf("%s: unknown cipher %#010x\n", __func__, cipher); 1452 }; 1453 return (0); 1454 } 1455 #endif 1456 1457 #ifdef __notyet__ 1458 static enum ieee80211_sta_state 1459 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 1460 { 1461 1462 /* 1463 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 1464 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 1465 */ 1466 switch (state) { 1467 case IEEE80211_S_INIT: 1468 return (IEEE80211_STA_NOTEXIST); 1469 case IEEE80211_S_SCAN: 1470 return (IEEE80211_STA_NONE); 1471 case IEEE80211_S_AUTH: 1472 return (IEEE80211_STA_AUTH); 1473 case IEEE80211_S_ASSOC: 1474 return (IEEE80211_STA_ASSOC); 1475 case IEEE80211_S_RUN: 1476 return (IEEE80211_STA_AUTHORIZED); 1477 case IEEE80211_S_CAC: 1478 case IEEE80211_S_CSA: 1479 case IEEE80211_S_SLEEP: 1480 default: 1481 UNIMPLEMENTED; 1482 }; 1483 1484 return (IEEE80211_STA_NOTEXIST); 1485 } 1486 #endif 1487 1488 static struct linuxkpi_ieee80211_channel * 1489 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 1490 struct ieee80211_channel *c) 1491 { 1492 struct ieee80211_hw *hw; 1493 struct linuxkpi_ieee80211_channel *channels; 1494 enum nl80211_band band; 1495 int i, nchans; 1496 1497 hw = LHW_TO_HW(lhw); 1498 band = lkpi_net80211_chan_to_nl80211_band(c); 1499 if (hw->wiphy->bands[band] == NULL) 1500 return (NULL); 1501 1502 nchans = hw->wiphy->bands[band]->n_channels; 1503 if (nchans <= 0) 1504 return (NULL); 1505 1506 channels = hw->wiphy->bands[band]->channels; 1507 for (i = 0; i < nchans; i++) { 1508 if (channels[i].center_freq == c->ic_freq) 1509 return (&channels[i]); 1510 } 1511 1512 return (NULL); 1513 } 1514 1515 #if 0 1516 static struct linuxkpi_ieee80211_channel * 1517 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 1518 { 1519 struct linuxkpi_ieee80211_channel *chan; 1520 struct ieee80211_channel *c; 1521 struct lkpi_hw *lhw; 1522 1523 chan = NULL; 1524 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 1525 c = ni->ni_chan; 1526 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 1527 c = ic->ic_bsschan; 1528 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 1529 c = ic->ic_curchan; 1530 else 1531 c = NULL; 1532 1533 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 1534 lhw = ic->ic_softc; 1535 chan = lkpi_find_lkpi80211_chan(lhw, c); 1536 } 1537 1538 return (chan); 1539 } 1540 #endif 1541 1542 struct linuxkpi_ieee80211_channel * 1543 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 1544 { 1545 enum nl80211_band band; 1546 1547 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1548 struct ieee80211_supported_band *supband; 1549 struct linuxkpi_ieee80211_channel *channels; 1550 int i; 1551 1552 supband = wiphy->bands[band]; 1553 if (supband == NULL || supband->n_channels == 0) 1554 continue; 1555 1556 channels = supband->channels; 1557 for (i = 0; i < supband->n_channels; i++) { 1558 if (channels[i].center_freq == freq) 1559 return (&channels[i]); 1560 } 1561 } 1562 1563 return (NULL); 1564 } 1565 1566 #ifdef LKPI_80211_HW_CRYPTO 1567 static int 1568 lkpi_sta_del_keys(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1569 struct lkpi_sta *lsta) 1570 { 1571 int error; 1572 1573 if (!lkpi_hwcrypto) 1574 return (0); 1575 1576 lockdep_assert_wiphy(hw->wiphy); 1577 1578 if (vif->cfg.assoc && lsta->state == IEEE80211_STA_AUTHORIZED) { 1579 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1580 ic_printf(lsta->ni->ni_ic, 1581 "%d %lu %s: vif still assoc; not deleting keys\n", 1582 curthread->td_tid, jiffies, __func__); 1583 return (0); 1584 } 1585 1586 ieee80211_ref_node(lsta->ni); 1587 1588 error = 0; 1589 for (ieee80211_keyix keyix = 0; keyix < nitems(lsta->kc); keyix++) { 1590 struct ieee80211_key_conf *kc; 1591 int err; 1592 1593 if (lsta->kc[keyix] == NULL) 1594 continue; 1595 kc = lsta->kc[keyix]; 1596 1597 #ifdef LINUXKPI_DEBUG_80211 1598 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1599 ic_printf(lsta->ni->ni_ic, "%d %lu %s: running set_key cmd %d(%s) for " 1600 "sta %6D: keyidx %u hw_key_idx %u flags %b\n", 1601 curthread->td_tid, jiffies, __func__, 1602 DISABLE_KEY, "DISABLE", lsta->sta.addr, ":", 1603 kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1604 #endif 1605 1606 err = lkpi_80211_mo_set_key(hw, DISABLE_KEY, vif, 1607 LSTA_TO_STA(lsta), kc); 1608 if (err != 0) { 1609 ic_printf(lsta->ni->ni_ic, "%d %lu %s: set_key cmd %d(%s) for " 1610 "sta %6D failed: %d\n", curthread->td_tid, jiffies, __func__, 1611 DISABLE_KEY, "DISABLE", lsta->sta.addr, ":", err); 1612 error++; 1613 1614 /* 1615 * If we free the key here we will never be able to get it 1616 * removed from the driver/fw which will likely make us 1617 * crash (firmware). 1618 */ 1619 continue; 1620 } 1621 #ifdef LINUXKPI_DEBUG_80211 1622 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1623 ic_printf(lsta->ni->ni_ic, "%d %lu %s: set_key cmd %d(%s) for " 1624 "sta %6D succeeded: keyidx %u hw_key_idx %u flags %b\n", 1625 curthread->td_tid, jiffies, __func__, 1626 DISABLE_KEY, "DISABLE", lsta->sta.addr, ":", 1627 kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1628 #endif 1629 1630 lsta->kc[keyix] = NULL; 1631 free(kc, M_LKPI80211); 1632 } 1633 ieee80211_free_node(lsta->ni); 1634 return (error); 1635 } 1636 1637 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 1638 /* See also lkpi_sta_del_keys() these days. */ 1639 static int 1640 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 1641 { 1642 struct ieee80211com *ic; 1643 struct lkpi_hw *lhw; 1644 struct ieee80211_hw *hw; 1645 struct lkpi_vif *lvif; 1646 struct lkpi_sta *lsta; 1647 struct ieee80211_vif *vif; 1648 struct ieee80211_sta *sta; 1649 struct ieee80211_node *ni; 1650 struct ieee80211_key_conf *kc; 1651 int error; 1652 1653 ic = vap->iv_ic; 1654 lhw = ic->ic_softc; 1655 hw = LHW_TO_HW(lhw); 1656 lvif = VAP_TO_LVIF(vap); 1657 vif = LVIF_TO_VIF(lvif); 1658 1659 /* 1660 * Make sure we do not make it here without going through 1661 * lkpi_iv_key_update_begin() first. 1662 */ 1663 lockdep_assert_wiphy(hw->wiphy); 1664 1665 ni = ieee80211_ref_node(vap->iv_bss); 1666 lsta = ni->ni_drv_data; 1667 if (lsta == NULL) { 1668 ic_printf(ic, "%s: ni %p (%6D) with lsta NULL\n", 1669 __func__, ni, ni->ni_bssid, ":"); 1670 ieee80211_free_node(ni); 1671 return (0); 1672 } 1673 1674 /* 1675 * While we are assoc we may still send packets. We cannot delete the 1676 * keys as otherwise packets could go out unencrypted. Some firmware 1677 * does not like this and will fire an assert. 1678 * net80211 needs to drive this better but given we want the disassoc 1679 * frame out and have to unlock we are open to a race currently. 1680 * This check should prevent problems. 1681 * How to test: run 800Mbit/s UDP traffic and during that restart your 1682 * supplicant. You want to survive that. 1683 */ 1684 if (vif->cfg.assoc && lsta->state == IEEE80211_STA_AUTHORIZED) { 1685 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1686 ic_printf(ic, "%d %lu %s: vif still assoc; not deleting keys\n", 1687 curthread->td_tid, jiffies, __func__); 1688 ieee80211_free_node(ni); 1689 return (0); 1690 } 1691 1692 if (IEEE80211_KEY_UNDEFINED(k)) { 1693 ic_printf(ic, "%s: vap %p key %p is undefined: %p %u\n", 1694 __func__, vap, k, k->wk_cipher, k->wk_keyix); 1695 ieee80211_free_node(ni); 1696 return (0); 1697 } 1698 1699 if (vap->iv_bss == NULL) { 1700 ic_printf(ic, "%s: iv_bss %p for vap %p is NULL\n", 1701 __func__, vap->iv_bss, vap); 1702 ieee80211_free_node(ni); 1703 return (0); 1704 } 1705 sta = LSTA_TO_STA(lsta); 1706 1707 if (lsta->kc[k->wk_keyix] == NULL) { 1708 #ifdef LINUXKPI_DEBUG_80211 1709 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1710 ic_printf(ic, "%d %lu %s: sta %6D and no key information, " 1711 "keyidx %u wk_macaddr %6D; returning success\n", 1712 curthread->td_tid, jiffies, __func__, sta->addr, ":", 1713 k->wk_keyix, k->wk_macaddr, ":"); 1714 #endif 1715 ieee80211_free_node(ni); 1716 return (1); 1717 } 1718 kc = lsta->kc[k->wk_keyix]; 1719 1720 #ifdef LINUXKPI_DEBUG_80211 1721 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1722 ic_printf(ic, "%d %lu %s: running set_key cmd %d(%s) for sta %6D: " 1723 "keyidx %u hw_key_idx %u flags %b\n", 1724 curthread->td_tid, jiffies, __func__, 1725 DISABLE_KEY, "DISABLE", sta->addr, ":", 1726 kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1727 #endif 1728 1729 error = lkpi_80211_mo_set_key(hw, DISABLE_KEY, vif, sta, kc); 1730 if (error != 0) { 1731 ic_printf(ic, "%d %lu %s: set_key cmd %d(%s) for sta %6D failed: %d\n", 1732 curthread->td_tid, jiffies, __func__, 1733 DISABLE_KEY, "DISABLE", sta->addr, ":", error); 1734 error = 0; 1735 goto out; 1736 } 1737 1738 #ifdef LINUXKPI_DEBUG_80211 1739 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1740 ic_printf(ic, "%d %lu %s: set_key cmd %d(%s) for sta %6D succeeded: " 1741 "keyidx %u hw_key_idx %u flags %b\n", 1742 curthread->td_tid, jiffies, __func__, 1743 DISABLE_KEY, "DISABLE", sta->addr, ":", 1744 kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1745 #endif 1746 lsta->kc[k->wk_keyix] = NULL; 1747 free(kc, M_LKPI80211); 1748 error = 1; 1749 out: 1750 ieee80211_free_node(ni); 1751 return (error); 1752 } 1753 1754 static int 1755 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 1756 { 1757 struct ieee80211com *ic; 1758 struct lkpi_hw *lhw; 1759 struct ieee80211_hw *hw; 1760 struct lkpi_vif *lvif; 1761 struct lkpi_sta *lsta; 1762 struct ieee80211_vif *vif; 1763 struct ieee80211_sta *sta; 1764 struct ieee80211_node *ni; 1765 struct ieee80211_key_conf *kc; 1766 struct ieee80211_key *wk; 1767 uint32_t lcipher; 1768 uint16_t exp_flags; 1769 uint8_t keylen; 1770 int error; 1771 1772 ic = vap->iv_ic; 1773 lhw = ic->ic_softc; 1774 hw = LHW_TO_HW(lhw); 1775 1776 /* 1777 * Make sure we do not make it here without going through 1778 * lkpi_iv_key_update_begin() first. 1779 */ 1780 lockdep_assert_wiphy(hw->wiphy); 1781 1782 if (IEEE80211_KEY_UNDEFINED(k)) { 1783 ic_printf(ic, "%s: vap %p key %p is undefined: %p %u\n", 1784 __func__, vap, k, k->wk_cipher, k->wk_keyix); 1785 return (0); 1786 } 1787 1788 if (vap->iv_bss == NULL) { 1789 ic_printf(ic, "%s: iv_bss %p for vap %p is NULL\n", 1790 __func__, vap->iv_bss, vap); 1791 return (0); 1792 } 1793 ni = ieee80211_ref_node(vap->iv_bss); 1794 lsta = ni->ni_drv_data; 1795 if (lsta == NULL) { 1796 ic_printf(ic, "%s: ni %p (%6D) with lsta NULL\n", 1797 __func__, ni, ni->ni_bssid, ":"); 1798 ieee80211_free_node(ni); 1799 return (0); 1800 } 1801 sta = LSTA_TO_STA(lsta); 1802 1803 keylen = ieee80211_crypto_get_key_len(k); 1804 lcipher = lkpi_net80211_to_l80211_cipher_suite( 1805 k->wk_cipher->ic_cipher, ieee80211_crypto_get_key_len(k)); 1806 switch (lcipher) { 1807 case WLAN_CIPHER_SUITE_TKIP: 1808 keylen += ieee80211_crypto_get_key_txmic_len(k); 1809 keylen += ieee80211_crypto_get_key_rxmic_len(k); 1810 break; 1811 case WLAN_CIPHER_SUITE_CCMP: 1812 case WLAN_CIPHER_SUITE_GCMP: 1813 break; 1814 default: 1815 ic_printf(ic, "%s: CIPHER SUITE %#x (%s) not supported\n", 1816 __func__, lcipher, lkpi_cipher_suite_to_name(lcipher)); 1817 IMPROVE(); 1818 ieee80211_free_node(ni); 1819 return (0); 1820 } 1821 1822 if (lsta->kc[k->wk_keyix] != NULL) { 1823 IMPROVE("Still in firmware? Del first. Can we assert this cannot happen?"); 1824 ic_printf(ic, "%s: sta %6D found with key information\n", 1825 __func__, sta->addr, ":"); 1826 kc = lsta->kc[k->wk_keyix]; 1827 lsta->kc[k->wk_keyix] = NULL; 1828 free(kc, M_LKPI80211); 1829 kc = NULL; /* safeguard */ 1830 } 1831 1832 kc = malloc(sizeof(*kc) + keylen, M_LKPI80211, M_WAITOK | M_ZERO); 1833 kc->_k = k; /* Save the pointer to net80211. */ 1834 kc->cipher = lcipher; 1835 kc->keyidx = k->wk_keyix; 1836 #if 0 1837 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 1838 #endif 1839 atomic64_set(&kc->tx_pn, k->wk_keytsc); 1840 kc->keylen = ieee80211_crypto_get_key_len(k); 1841 memcpy(kc->key, ieee80211_crypto_get_key_data(k), 1842 ieee80211_crypto_get_key_len(k)); 1843 1844 if (k->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV)) 1845 kc->flags |= IEEE80211_KEY_FLAG_PAIRWISE; 1846 if (k->wk_flags & IEEE80211_KEY_GROUP) 1847 kc->flags &= ~IEEE80211_KEY_FLAG_PAIRWISE; 1848 1849 kc->iv_len = k->wk_cipher->ic_header; 1850 kc->icv_len = k->wk_cipher->ic_trailer; 1851 1852 switch (kc->cipher) { 1853 case WLAN_CIPHER_SUITE_TKIP: 1854 memcpy(kc->key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY, 1855 ieee80211_crypto_get_key_txmic_data(k), 1856 ieee80211_crypto_get_key_txmic_len(k)); 1857 memcpy(kc->key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 1858 ieee80211_crypto_get_key_rxmic_data(k), 1859 ieee80211_crypto_get_key_rxmic_len(k)); 1860 break; 1861 case WLAN_CIPHER_SUITE_CCMP: 1862 case WLAN_CIPHER_SUITE_GCMP: 1863 break; 1864 default: 1865 /* currently UNREACH */ 1866 IMPROVE(); 1867 break; 1868 }; 1869 lsta->kc[k->wk_keyix] = kc; 1870 1871 #ifdef LINUXKPI_DEBUG_80211 1872 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1873 ic_printf(ic, "%d %lu %s: running set_key cmd %d(%s) for sta %6D: " 1874 "kc %p keyidx %u hw_key_idx %u keylen %u flags %b\n", 1875 curthread->td_tid, jiffies, __func__, 1876 SET_KEY, "SET", sta->addr, ":", kc, kc->keyidx, kc->hw_key_idx, 1877 kc->keylen, kc->flags, IEEE80211_KEY_FLAG_BITS); 1878 #endif 1879 1880 lvif = VAP_TO_LVIF(vap); 1881 vif = LVIF_TO_VIF(lvif); 1882 error = lkpi_80211_mo_set_key(hw, SET_KEY, vif, sta, kc); 1883 if (error != 0) { 1884 ic_printf(ic, "%d %lu %s: set_key cmd %d(%s) for sta %6D failed: %d\n", 1885 curthread->td_tid, jiffies, __func__, 1886 SET_KEY, "SET", sta->addr, ":", error); 1887 lsta->kc[k->wk_keyix] = NULL; 1888 free(kc, M_LKPI80211); 1889 ieee80211_free_node(ni); 1890 return (0); 1891 } 1892 1893 #ifdef LINUXKPI_DEBUG_80211 1894 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1895 ic_printf(ic, "%d %lu %s: set_key cmd %d(%s) for sta %6D succeeded: " 1896 "kc %p keyidx %u hw_key_idx %u flags %b\n", 1897 curthread->td_tid, jiffies, __func__, 1898 SET_KEY, "SET", sta->addr, ":", 1899 kc, kc->keyidx, kc->hw_key_idx, kc->flags, IEEE80211_KEY_FLAG_BITS); 1900 #endif 1901 1902 /* 1903 * Getting here means we support HW crypto offload. 1904 * Some drivers do not set the wiphy [n_]cipher_suites and thus we 1905 * never populate ic_cryptocaps. which means SWCRYPT will be set and we 1906 * should disable this now (before possibly setting other SW flags 1907 * again for when we need partial SW support). 1908 */ 1909 wk = __DECONST(struct ieee80211_key *, k); 1910 wk->wk_flags &= ~IEEE80211_KEY_SWCRYPT; 1911 1912 exp_flags = 0; 1913 switch (kc->cipher) { 1914 case WLAN_CIPHER_SUITE_TKIP: 1915 exp_flags = (IEEE80211_KEY_FLAG_PAIRWISE | 1916 IEEE80211_KEY_FLAG_PUT_IV_SPACE | 1917 IEEE80211_KEY_FLAG_GENERATE_MMIC | 1918 IEEE80211_KEY_FLAG_PUT_MIC_SPACE); 1919 #define TKIP_INVAL_COMBINATION \ 1920 (IEEE80211_KEY_FLAG_PUT_MIC_SPACE|IEEE80211_KEY_FLAG_GENERATE_MMIC) 1921 if ((kc->flags & TKIP_INVAL_COMBINATION) == TKIP_INVAL_COMBINATION) { 1922 ic_printf(ic, "%s: SET_KEY for %s returned invalid " 1923 "combination %b\n", __func__, 1924 lkpi_cipher_suite_to_name(kc->cipher), 1925 kc->flags, IEEE80211_KEY_FLAG_BITS); 1926 } 1927 #undef TKIP_INVAL_COMBINATION 1928 #ifdef __notyet__ 1929 /* Do flags surgery; special see linuxkpi_ieee80211_ifattach(). */ 1930 if ((kc->flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) != 0) { 1931 wk->wk_flags &= ~(IEEE80211_KEY_NOMICMGT|IEEE80211_KEY_NOMIC); 1932 wk->wk_flags |= IEEE80211_KEY_SWMIC; 1933 ic->ic_cryptocaps &= ~IEEE80211_CRYPTO_TKIPMIC 1934 } 1935 #endif 1936 break; 1937 case WLAN_CIPHER_SUITE_CCMP: 1938 case WLAN_CIPHER_SUITE_GCMP: 1939 exp_flags = (IEEE80211_KEY_FLAG_PAIRWISE | 1940 IEEE80211_KEY_FLAG_PUT_IV_SPACE | 1941 IEEE80211_KEY_FLAG_GENERATE_IV | 1942 IEEE80211_KEY_FLAG_GENERATE_IV_MGMT | /* Only needs IV geeration for MGMT frames. */ 1943 IEEE80211_KEY_FLAG_SW_MGMT_TX); /* MFP in software */ 1944 break; 1945 } 1946 if ((kc->flags & ~exp_flags) != 0) 1947 ic_printf(ic, "%s: SET_KEY for %s returned unexpected key flags: " 1948 " %#06x & ~%#06x = %b\n", __func__, 1949 lkpi_cipher_suite_to_name(kc->cipher), kc->flags, exp_flags, 1950 (kc->flags & ~exp_flags), IEEE80211_KEY_FLAG_BITS); 1951 1952 #ifdef __notyet__ 1953 /* Do flags surgery. */ 1954 if ((kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV_MGMT) == 0) 1955 wk->wk_flags |= IEEE80211_KEY_NOIVMGT; 1956 if ((kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV) == 0) 1957 wk->wk_flags |= IEEE80211_KEY_NOIV; 1958 #endif 1959 1960 ieee80211_free_node(ni); 1961 return (1); 1962 } 1963 1964 static void 1965 lkpi_iv_key_update_begin(struct ieee80211vap *vap) 1966 { 1967 struct ieee80211_node_table *nt; 1968 struct ieee80211com *ic; 1969 struct lkpi_hw *lhw; 1970 struct ieee80211_hw *hw; 1971 struct lkpi_vif *lvif; 1972 struct ieee80211_node *ni; 1973 bool icislocked, ntislocked; 1974 1975 ic = vap->iv_ic; 1976 lhw = ic->ic_softc; 1977 hw = LHW_TO_HW(lhw); 1978 lvif = VAP_TO_LVIF(vap); 1979 nt = &ic->ic_sta; 1980 1981 icislocked = IEEE80211_IS_LOCKED(ic); 1982 ntislocked = IEEE80211_NODE_IS_LOCKED(nt); 1983 1984 #ifdef LINUXKPI_DEBUG_80211 1985 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 1986 ic_printf(ic, "%d %lu %s: vap %p ic %p %slocked nt %p %slocked " 1987 "lvif ic_unlocked %d nt_unlocked %d\n", 1988 curthread->td_tid, jiffies, __func__, vap, 1989 ic, icislocked ? "" : "un", nt, ntislocked ? "" : "un", 1990 lvif->ic_unlocked, lvif->nt_unlocked); 1991 #endif 1992 1993 /* 1994 * This is inconsistent net80211 locking to be fixed one day. 1995 */ 1996 /* Try to make sure the node does not go away while possibly unlocked. */ 1997 ni = NULL; 1998 if (icislocked || ntislocked) { 1999 if (vap->iv_bss != NULL) 2000 ni = ieee80211_ref_node(vap->iv_bss); 2001 } 2002 2003 if (icislocked) 2004 IEEE80211_UNLOCK(ic); 2005 if (ntislocked) 2006 IEEE80211_NODE_UNLOCK(nt); 2007 2008 wiphy_lock(hw->wiphy); 2009 2010 KASSERT(lvif->key_update_iv_bss == NULL, ("%s: key_update_iv_bss not NULL %p", 2011 __func__, lvif->key_update_iv_bss)); 2012 lvif->key_update_iv_bss = ni; 2013 2014 /* 2015 * ic/nt_unlocked could be a bool given we are under the lock and there 2016 * must only be a single thread. 2017 * In case anything in the future disturbs the order the refcnt will 2018 * help us catching problems a lot easier. 2019 */ 2020 if (icislocked) 2021 refcount_acquire(&lvif->ic_unlocked); 2022 if (ntislocked) 2023 refcount_acquire(&lvif->nt_unlocked); 2024 2025 /* 2026 * Stop the queues while doing key updates. 2027 */ 2028 ieee80211_stop_queues(hw); 2029 } 2030 2031 static void 2032 lkpi_iv_key_update_end(struct ieee80211vap *vap) 2033 { 2034 struct ieee80211_node_table *nt; 2035 struct ieee80211com *ic; 2036 struct lkpi_hw *lhw; 2037 struct ieee80211_hw *hw; 2038 struct lkpi_vif *lvif; 2039 bool icislocked, ntislocked; 2040 2041 ic = vap->iv_ic; 2042 lhw = ic->ic_softc; 2043 hw = LHW_TO_HW(lhw); 2044 lvif = VAP_TO_LVIF(vap); 2045 nt = &ic->ic_sta; 2046 2047 /* 2048 * Re-enabled the queues after the key update. 2049 */ 2050 lkpi_ieee80211_wake_queues_locked(hw); 2051 2052 icislocked = IEEE80211_IS_LOCKED(ic); 2053 MPASS(!icislocked); 2054 ntislocked = IEEE80211_NODE_IS_LOCKED(nt); 2055 MPASS(!ntislocked); 2056 2057 #ifdef LINUXKPI_DEBUG_80211 2058 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 2059 ic_printf(ic, "%d %lu %s: vap %p ic %p %slocked nt %p %slocked " 2060 "lvif ic_unlocked %d nt_unlocked %d\n", 2061 curthread->td_tid, jiffies, __func__, vap, 2062 ic, icislocked ? "" : "un", nt, ntislocked ? "" : "un", 2063 lvif->ic_unlocked, lvif->nt_unlocked); 2064 #endif 2065 2066 /* 2067 * Check under lock; see comment in lkpi_iv_key_update_begin(). 2068 * In case the refcnt gets out of sync locking in net80211 will 2069 * quickly barf as well (trying to unlock a lock not held). 2070 */ 2071 icislocked = refcount_release_if_last(&lvif->ic_unlocked); 2072 ntislocked = refcount_release_if_last(&lvif->nt_unlocked); 2073 2074 if (lvif->key_update_iv_bss != NULL) { 2075 ieee80211_free_node(lvif->key_update_iv_bss); 2076 lvif->key_update_iv_bss = NULL; 2077 } 2078 2079 wiphy_unlock(hw->wiphy); 2080 2081 /* 2082 * This is inconsistent net80211 locking to be fixed one day. 2083 * ic before nt to avoid a LOR. 2084 */ 2085 if (icislocked) 2086 IEEE80211_LOCK(ic); 2087 if (ntislocked) 2088 IEEE80211_NODE_LOCK(nt); 2089 } 2090 #endif 2091 2092 static void 2093 lkpi_cleanup_mcast_list_locked(struct lkpi_hw *lhw) 2094 { 2095 struct list_head *le, *next; 2096 struct netdev_hw_addr *addr; 2097 2098 if (lhw->mc_list.count != 0) { 2099 list_for_each_safe(le, next, &lhw->mc_list.addr_list) { 2100 addr = list_entry(le, struct netdev_hw_addr, addr_list); 2101 list_del(le); 2102 lhw->mc_list.count--; 2103 free(addr, M_LKPI80211); 2104 } 2105 } 2106 KASSERT(lhw->mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 2107 __func__, &lhw->mc_list, lhw->mc_list.count)); 2108 } 2109 2110 static u_int 2111 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 2112 { 2113 struct netdev_hw_addr_list *mc_list; 2114 struct netdev_hw_addr *addr; 2115 2116 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 2117 __func__, arg, sdl, cnt)); 2118 2119 mc_list = arg; 2120 /* If it is on the list already skip it. */ 2121 netdev_hw_addr_list_for_each(addr, mc_list) { 2122 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 2123 return (0); 2124 } 2125 2126 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 2127 if (addr == NULL) 2128 return (0); 2129 2130 INIT_LIST_HEAD(&addr->addr_list); 2131 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 2132 /* XXX this should be a netdev function? */ 2133 list_add(&addr->addr_list, &mc_list->addr_list); 2134 mc_list->count++; 2135 2136 #ifdef LINUXKPI_DEBUG_80211 2137 if (linuxkpi_debug_80211 & D80211_TRACE) 2138 printf("%s:%d: mc_list count %d: added %6D\n", 2139 __func__, __LINE__, mc_list->count, addr->addr, ":"); 2140 #endif 2141 2142 return (1); 2143 } 2144 2145 static void 2146 lkpi_update_mcast_filter_locked(struct ieee80211com *ic) 2147 { 2148 struct lkpi_hw *lhw; 2149 struct ieee80211_hw *hw; 2150 u64 mc; 2151 unsigned int changed_flags, flags; 2152 bool scanning; 2153 2154 lhw = ic->ic_softc; 2155 hw = LHW_TO_HW(lhw); 2156 2157 lockdep_assert_wiphy(hw->wiphy); 2158 2159 LKPI_80211_LHW_SCAN_LOCK(lhw); 2160 scanning = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2161 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2162 2163 LKPI_80211_LHW_MC_LOCK(lhw); 2164 2165 flags = 0; 2166 if (scanning) 2167 flags |= FIF_BCN_PRBRESP_PROMISC; 2168 /* The latter condition may not be as expected but seems wise. */ 2169 if (lhw->mc_all_multi || lhw->ops->prepare_multicast == NULL) 2170 flags |= FIF_ALLMULTI; 2171 2172 mc = lkpi_80211_mo_prepare_multicast(hw, &lhw->mc_list); 2173 2174 changed_flags = (lhw->mc_flags ^ flags) & FIF_FLAGS_MASK; 2175 lkpi_80211_mo_configure_filter(hw, changed_flags, &flags, mc); 2176 lhw->mc_flags = flags; 2177 2178 #ifdef LINUXKPI_DEBUG_80211 2179 if (linuxkpi_debug_80211 & D80211_TRACE) 2180 printf("%s: changed_flags %#06x count %d mc_flags %#010x\n", 2181 __func__, changed_flags, lhw->mc_list.count, lhw->mc_flags); 2182 #endif 2183 2184 LKPI_80211_LHW_MC_UNLOCK(lhw); 2185 } 2186 2187 static void 2188 lkpi_update_mcast_filter(struct ieee80211com *ic) 2189 { 2190 struct lkpi_hw *lhw; 2191 struct ieee80211_hw *hw; 2192 2193 lhw = ic->ic_softc; 2194 hw = LHW_TO_HW(lhw); 2195 2196 wiphy_lock(hw->wiphy); 2197 lkpi_update_mcast_filter_locked(ic); 2198 wiphy_unlock(hw->wiphy); 2199 } 2200 2201 static enum ieee80211_bss_changed 2202 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 2203 struct ieee80211vap *vap, const char *_f, int _l) 2204 { 2205 enum ieee80211_bss_changed bss_changed; 2206 2207 bss_changed = 0; 2208 2209 #ifdef LINUXKPI_DEBUG_80211 2210 if (linuxkpi_debug_80211 & D80211_TRACE) 2211 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 2212 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 2213 "sync_device_ts %u bss_changed %#010jx\n", 2214 __func__, __LINE__, _f, _l, 2215 vif->cfg.assoc, vif->cfg.aid, 2216 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 2217 vif->bss_conf.sync_dtim_count, 2218 (uintmax_t)vif->bss_conf.sync_tsf, 2219 vif->bss_conf.sync_device_ts, 2220 (uintmax_t)bss_changed); 2221 #endif 2222 2223 if (vif->bss_conf.beacon_int != ni->ni_intval) { 2224 vif->bss_conf.beacon_int = ni->ni_intval; 2225 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 2226 if (vif->bss_conf.beacon_int < 16) 2227 vif->bss_conf.beacon_int = 16; 2228 bss_changed |= BSS_CHANGED_BEACON_INT; 2229 } 2230 2231 /* 2232 * lkpi_iv_sta_recv_mgmt() will directly call into this function. 2233 * iwlwifi(4) in iwl_mvm_bss_info_changed_station_common() will 2234 * stop seesion protection the moment it sees 2235 * BSS_CHANGED_BEACON_INFO (with the expectations that it was 2236 * "a beacon from the associated AP"). It will also update 2237 * the beacon filter in that case. This is the only place 2238 * we set the BSS_CHANGED_BEACON_INFO on the non-teardown 2239 * path so make sure we only do run this check once we are 2240 * assoc. (*iv_recv_mgmt)() will be called before we enter 2241 * here so the ni will be updated with information from the 2242 * beacon via net80211::sta_recv_mgmt(). We also need to 2243 * make sure we do not do it on every beacon we still may 2244 * get so only do if something changed. vif->bss_conf.dtim_period 2245 * should be 0 as we start up (we also reset it on teardown). 2246 * 2247 * If we are assoc we need to make sure dtim_period is non-0. 2248 * 0 is a reserved value and drivers assume they can DIV by it. 2249 * In theory this means we need to wait for the first beacon 2250 * before we finalize the vif being assoc. In practise that 2251 * is harder until net80211 learns how to. Work around like 2252 * this for the moment. 2253 */ 2254 if (vif->cfg.assoc) { 2255 if (vif->bss_conf.dtim_period != ni->ni_dtim_period && 2256 ni->ni_dtim_period > 0) { 2257 vif->bss_conf.dtim_period = ni->ni_dtim_period; 2258 bss_changed |= BSS_CHANGED_BEACON_INFO; 2259 } else if (vif->bss_conf.dtim_period == 0) { 2260 vif->bss_conf.dtim_period = 1; 2261 bss_changed |= BSS_CHANGED_BEACON_INFO; 2262 } 2263 } 2264 2265 vif->bss_conf.sync_dtim_count = ni->ni_dtim_count; 2266 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 2267 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 2268 2269 #ifdef LINUXKPI_DEBUG_80211 2270 if (linuxkpi_debug_80211 & D80211_TRACE) 2271 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 2272 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 2273 "sync_device_ts %u bss_changed %#010jx\n", 2274 __func__, __LINE__, _f, _l, 2275 vif->cfg.assoc, vif->cfg.aid, 2276 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 2277 vif->bss_conf.sync_dtim_count, 2278 (uintmax_t)vif->bss_conf.sync_tsf, 2279 vif->bss_conf.sync_device_ts, 2280 (uintmax_t)bss_changed); 2281 #endif 2282 2283 return (bss_changed); 2284 } 2285 2286 static void 2287 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 2288 { 2289 struct ieee80211_hw *hw; 2290 int error; 2291 bool cancel; 2292 2293 TRACE_SCAN(lhw->ic, "scan_flags %b", lhw->scan_flags, LKPI_LHW_SCAN_BITS); 2294 2295 LKPI_80211_LHW_SCAN_LOCK(lhw); 2296 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2297 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2298 if (!cancel) 2299 return; 2300 2301 hw = LHW_TO_HW(lhw); 2302 2303 IEEE80211_UNLOCK(lhw->ic); 2304 wiphy_lock(hw->wiphy); 2305 /* Need to cancel the scan. */ 2306 lkpi_80211_mo_cancel_hw_scan(hw, vif); 2307 wiphy_unlock(hw->wiphy); 2308 2309 /* Need to make sure we see ieee80211_scan_completed. */ 2310 LKPI_80211_LHW_SCAN_LOCK(lhw); 2311 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 2312 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 2313 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2314 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2315 2316 IEEE80211_LOCK(lhw->ic); 2317 2318 if (cancel) 2319 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 2320 __func__, error, lhw, vif); 2321 } 2322 2323 static void 2324 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 2325 { 2326 struct lkpi_hw *lhw; 2327 int error; 2328 bool old; 2329 2330 lockdep_assert_wiphy(hw->wiphy); 2331 2332 old = hw->conf.flags & IEEE80211_CONF_IDLE; 2333 if (old == new) 2334 return; 2335 2336 hw->conf.flags ^= IEEE80211_CONF_IDLE; 2337 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 2338 if (error != 0 && error != EOPNOTSUPP) { 2339 lhw = HW_TO_LHW(hw); 2340 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 2341 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 2342 } 2343 } 2344 2345 static enum ieee80211_bss_changed 2346 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 2347 struct lkpi_hw *lhw) 2348 { 2349 struct ieee80211_hw *hw; 2350 struct lkpi_vif *lvif; 2351 enum ieee80211_bss_changed changed; 2352 2353 hw = LHW_TO_HW(lhw); 2354 lockdep_assert_wiphy(hw->wiphy); 2355 2356 changed = 0; 2357 sta->aid = 0; 2358 if (vif->cfg.assoc) { 2359 2360 vif->cfg.assoc = false; 2361 vif->cfg.aid = 0; 2362 changed |= BSS_CHANGED_ASSOC; 2363 IMPROVE(); 2364 2365 lkpi_update_mcast_filter_locked(lhw->ic); 2366 2367 /* 2368 * Executing the bss_info_changed(BSS_CHANGED_ASSOC) with 2369 * assoc = false right away here will remove the sta from 2370 * firmware for iwlwifi. 2371 * We no longer do this but only return the BSS_CHNAGED value. 2372 * The caller is responsible for removing the sta gong to 2373 * IEEE80211_STA_NOTEXIST and then executing the 2374 * bss_info_changed() update. 2375 * See DOWN4 for more detailed comment. 2376 */ 2377 2378 lvif = VIF_TO_LVIF(vif); 2379 lvif->beacons = 0; 2380 } 2381 2382 return (changed); 2383 } 2384 2385 static void 2386 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 2387 bool dequeue_seen, bool no_emptyq) 2388 { 2389 struct lkpi_txq *ltxq; 2390 int tid; 2391 bool ltxq_empty; 2392 2393 /* Wake up all queues to know they are allocated in the driver. */ 2394 for (tid = 0; tid < nitems(sta->txq); tid++) { 2395 2396 if (tid == IEEE80211_NUM_TIDS) { 2397 IMPROVE("station specific?"); 2398 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 2399 continue; 2400 } else if (tid >= hw->queues) 2401 continue; 2402 2403 if (sta->txq[tid] == NULL) 2404 continue; 2405 2406 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 2407 if (dequeue_seen && (ltxq->flags & LKPI_TXQ_SEEN_DEQUEUE) == 0) 2408 continue; 2409 2410 LKPI_80211_LTXQ_LOCK(ltxq); 2411 ltxq_empty = skb_queue_empty(<xq->skbq); 2412 LKPI_80211_LTXQ_UNLOCK(ltxq); 2413 if (no_emptyq && ltxq_empty) 2414 continue; 2415 2416 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid], false); 2417 } 2418 } 2419 2420 /* 2421 * On the way down from RUN -> ASSOC -> AUTH we may send a DISASSOC or DEAUTH 2422 * packet. The problem is that the state machine functions tend to hold the 2423 * LHW lock which will prevent lkpi_80211_txq_tx_one() from sending the packet. 2424 * We call this after dropping the ic lock and before acquiring the LHW lock. 2425 * we make sure no further packets are queued and if they are queued the task 2426 * will finish or be cancelled. At the end if a packet is left we manually 2427 * send it. scan_to_auth() would re-enable sending if the lsta would be 2428 * re-used. 2429 */ 2430 static void 2431 lkpi_80211_flush_tx(struct lkpi_hw *lhw, struct lkpi_sta *lsta) 2432 { 2433 struct ieee80211_hw *hw; 2434 struct mbufq mq; 2435 struct mbuf *m; 2436 int len; 2437 2438 /* There is no lockdep_assert_not_held_wiphy(). */ 2439 hw = LHW_TO_HW(lhw); 2440 lockdep_assert_not_held(&hw->wiphy->mtx); 2441 2442 /* Do not accept any new packets until scan_to_auth or lsta_free(). */ 2443 LKPI_80211_LSTA_TXQ_LOCK(lsta); 2444 lsta->txq_ready = false; 2445 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 2446 2447 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 2448 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 2449 2450 LKPI_80211_LSTA_TXQ_LOCK(lsta); 2451 len = mbufq_len(&lsta->txq); 2452 if (len <= 0) { 2453 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 2454 return; 2455 } 2456 2457 mbufq_init(&mq, IFQ_MAXLEN); 2458 mbufq_concat(&mq, &lsta->txq); 2459 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 2460 2461 m = mbufq_dequeue(&mq); 2462 while (m != NULL) { 2463 lkpi_80211_txq_tx_one(lsta, m); 2464 m = mbufq_dequeue(&mq); 2465 } 2466 } 2467 2468 static void 2469 lkpi_init_chandef(struct ieee80211com *ic __unused, 2470 struct cfg80211_chan_def *chandef, 2471 struct linuxkpi_ieee80211_channel *chan, struct ieee80211_channel *c, 2472 bool can_ht) 2473 { 2474 2475 cfg80211_chandef_create(chandef, chan, 2476 (can_ht) ? NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); 2477 chandef->center_freq1 = ieee80211_get_channel_center_freq1(c); 2478 chandef->center_freq2 = ieee80211_get_channel_center_freq2(c); 2479 2480 IMPROVE("Check ht/vht_cap from band not just chan? See lkpi_sta_sync_from_ni..."); 2481 #ifdef LKPI_80211_HT 2482 if (IEEE80211_IS_CHAN_HT(c)) { 2483 if (IEEE80211_IS_CHAN_HT40(c)) 2484 chandef->width = NL80211_CHAN_WIDTH_40; 2485 else 2486 chandef->width = NL80211_CHAN_WIDTH_20; 2487 } 2488 #endif 2489 #ifdef LKPI_80211_VHT 2490 if (IEEE80211_IS_CHAN_VHT_5GHZ(c)) { 2491 if (IEEE80211_IS_CHAN_VHT80P80(c)) 2492 chandef->width = NL80211_CHAN_WIDTH_80P80; 2493 else if (IEEE80211_IS_CHAN_VHT160(c)) 2494 chandef->width = NL80211_CHAN_WIDTH_160; 2495 else if (IEEE80211_IS_CHAN_VHT80(c)) 2496 chandef->width = NL80211_CHAN_WIDTH_80; 2497 } 2498 #endif 2499 2500 #ifdef LINUXKPI_DEBUG_80211 2501 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 2502 ic_printf(ic, "%s:%d: chandef %p { chan %p { %u }, " 2503 "width %d cfreq1 %u cfreq2 %u punctured %u }\n", 2504 __func__, __LINE__, chandef, 2505 chandef->chan, chandef->chan->center_freq, 2506 chandef->width, 2507 chandef->center_freq1, chandef->center_freq2, 2508 chandef->punctured); 2509 #endif 2510 } 2511 2512 static uint32_t 2513 lkpi_init_chanctx_conf(struct ieee80211_hw *hw, 2514 struct cfg80211_chan_def *chandef, 2515 struct ieee80211_chanctx_conf *chanctx_conf) 2516 { 2517 uint32_t changed; 2518 2519 lockdep_assert_wiphy(hw->wiphy); 2520 2521 changed = 0; 2522 2523 chanctx_conf->rx_chains_static = 1; 2524 chanctx_conf->rx_chains_dynamic = 1; 2525 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 2526 2527 if (chanctx_conf->radar_enabled != hw->conf.radar_enabled) { 2528 chanctx_conf->radar_enabled = hw->conf.radar_enabled; 2529 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 2530 } 2531 2532 chanctx_conf->def = *chandef; 2533 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 2534 2535 /* One day we should figure this out; is for iwlwifi-only. */ 2536 chanctx_conf->min_def = chanctx_conf->def; 2537 changed |= IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 2538 2539 /* chanctx_conf->ap = */ 2540 2541 return (changed); 2542 } 2543 2544 static struct lkpi_chanctx * 2545 lkpi_alloc_lchanctx(struct ieee80211_hw *hw, struct lkpi_vif *lvif) 2546 { 2547 struct lkpi_chanctx *lchanctx; 2548 2549 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 2550 M_LKPI80211, M_WAITOK | M_ZERO); 2551 lchanctx->lvif = lvif; 2552 2553 return (lchanctx); 2554 } 2555 2556 static struct lkpi_chanctx * 2557 lkpi_find_lchanctx_reserved(struct ieee80211_hw *hw, struct lkpi_vif *lvif) 2558 { 2559 struct lkpi_hw *lhw; 2560 struct lkpi_chanctx *lchanctx; 2561 bool found; 2562 2563 lhw = HW_TO_LHW(hw); 2564 2565 found = false; 2566 rcu_read_lock(); 2567 list_for_each_entry_rcu(lchanctx, &lhw->lchanctx_list_reserved, entry) { 2568 if (lchanctx->lvif == lvif) { 2569 found = true; 2570 break; 2571 } 2572 } 2573 rcu_read_unlock(); 2574 2575 if (!found) { 2576 lchanctx = lkpi_alloc_lchanctx(hw, lvif); 2577 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list_reserved); 2578 } 2579 2580 return (lchanctx); 2581 } 2582 2583 static struct ieee80211_chanctx_conf * 2584 lkpi_get_chanctx_conf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 2585 { 2586 struct ieee80211_chanctx_conf *chanctx_conf; 2587 2588 chanctx_conf = rcu_dereference_protected(vif->bss_conf.chanctx_conf, 2589 lockdep_is_held(&hw->wiphy->mtx)); 2590 if (chanctx_conf == NULL) { 2591 struct lkpi_chanctx *lchanctx; 2592 struct lkpi_vif *lvif; 2593 2594 lvif = VIF_TO_LVIF(vif); 2595 lchanctx = lkpi_find_lchanctx_reserved(hw, lvif); 2596 KASSERT(lchanctx != NULL, ("%s: hw %p, vif %p no lchanctx\n", 2597 __func__, hw, vif)); 2598 list_del(&lchanctx->entry); 2599 chanctx_conf = &lchanctx->chanctx_conf; 2600 } 2601 /* else { IMPROVE("diff changes for changed, working on live copy, rcu"); } */ 2602 2603 return (chanctx_conf); 2604 } 2605 2606 static int 2607 lkpi_set_chanctx_conf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 2608 struct ieee80211_chanctx_conf *chanctx_conf, 2609 uint32_t changed, bool changed_set) 2610 { 2611 struct lkpi_hw *lhw; 2612 struct lkpi_chanctx *lchanctx; 2613 int error; 2614 2615 lockdep_assert_wiphy(hw->wiphy); 2616 2617 if (vif->bss_conf.chanctx_conf == chanctx_conf) { 2618 if (!changed_set) { 2619 IMPROVE("OBSOLETE?"); 2620 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 2621 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 2622 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 2623 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 2624 } 2625 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 2626 2627 return (0); 2628 } 2629 2630 lhw = HW_TO_LHW(hw); 2631 2632 /* The device is no longer idle. */ 2633 IMPROVE("Once we do multi-vif, only do for 1st chanctx"); 2634 lkpi_hw_conf_idle(hw, false); 2635 2636 error = lkpi_80211_mo_add_chanctx(hw, chanctx_conf); 2637 if (error != 0 && error != EOPNOTSUPP) { 2638 ic_printf(lhw->ic, "%s:%d: mo_add_chanctx " 2639 "failed: %d\n", __func__, __LINE__, error); 2640 return (error); 2641 } 2642 2643 vif->bss_conf.chanreq.oper.chan = chanctx_conf->def.chan; 2644 vif->bss_conf.chanreq.oper.width = chanctx_conf->def.width; 2645 vif->bss_conf.chanreq.oper.center_freq1 = 2646 chanctx_conf->def.center_freq1; 2647 vif->bss_conf.chanreq.oper.center_freq2 = 2648 chanctx_conf->def.center_freq2; 2649 2650 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2651 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list); 2652 rcu_assign_pointer(vif->bss_conf.chanctx_conf, chanctx_conf); 2653 2654 /* Assign vif chanctx. */ 2655 if (error == 0) 2656 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 2657 &vif->bss_conf, chanctx_conf); 2658 if (error == EOPNOTSUPP) 2659 error = 0; 2660 if (error != 0) { 2661 ic_printf(lhw->ic, "%s:%d: mo_assign_vif_chanctx " 2662 "failed: %d\n", __func__, __LINE__, error); 2663 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2664 rcu_assign_pointer(vif->bss_conf.chanctx_conf, NULL); 2665 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2666 list_del(&lchanctx->entry); 2667 memset(lchanctx, 0, sizeof(*lchanctx)); 2668 lchanctx->lvif = VIF_TO_LVIF(vif); 2669 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list_reserved); 2670 } 2671 2672 return (error); 2673 } 2674 2675 static void 2676 lkpi_remove_chanctx(struct ieee80211_hw *hw, struct ieee80211_vif *vif) 2677 { 2678 struct lkpi_hw *lhw; 2679 struct ieee80211_chanctx_conf *chanctx_conf; 2680 struct lkpi_chanctx *lchanctx; 2681 2682 lockdep_assert_wiphy(hw->wiphy); 2683 2684 chanctx_conf = rcu_dereference_protected(vif->bss_conf.chanctx_conf, 2685 lockdep_is_held(&hw->wiphy->mtx)); 2686 2687 if (chanctx_conf == NULL) 2688 return; 2689 2690 /* Remove vif context. */ 2691 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, chanctx_conf); 2692 2693 lkpi_hw_conf_idle(hw, true); 2694 2695 /* Remove chan ctx. */ 2696 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2697 2698 /* Cleanup. */ 2699 rcu_assign_pointer(vif->bss_conf.chanctx_conf, NULL); 2700 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2701 list_del(&lchanctx->entry); 2702 lhw = HW_TO_LHW(hw); 2703 memset(lchanctx, 0, sizeof(*lchanctx)); 2704 lchanctx->lvif = VIF_TO_LVIF(vif); 2705 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list_reserved); 2706 } 2707 2708 /* -------------------------------------------------------------------------- */ 2709 2710 /* Any other options belong here? Check more drivers. */ 2711 #define BSS_CHANGED_VIF_CFG_BITS \ 2712 (BSS_CHANGED_SSID | BSS_CHANGED_IDLE | BSS_CHANGED_PS | BSS_CHANGED_ASSOC | \ 2713 BSS_CHANGED_ARP_FILTER | BSS_CHANGED_MLD_VALID_LINKS | BSS_CHANGED_MLD_TTLM) 2714 2715 static void 2716 lkpi_bss_info_change(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 2717 enum ieee80211_bss_changed bss_changed) 2718 { 2719 struct lkpi_vif *lvif; 2720 enum ieee80211_bss_changed vif_cfg_bits, link_info_bits; 2721 2722 if (ieee80211_vif_is_mld(vif)) { 2723 TODO("This likely needs a subset only; split up into 3 parts."); 2724 } 2725 2726 /* Nothing to do? */ 2727 if (bss_changed == 0) 2728 return; 2729 2730 /* 2731 * If the vif is not known to the driver there is nothing to notifiy for. 2732 * We MUST NOT check for !lvif_bss_synched here (the reasonable it seems) 2733 * as we need to execute the update(s) or we will have follow-up issues. 2734 */ 2735 lvif = VIF_TO_LVIF(vif); 2736 if (!lvif->added_to_drv) 2737 return; 2738 2739 /* 2740 * With the advent of MLO bss_conf got split up into vif and link 2741 * change notfications, while historically it was one. 2742 * We now need to support all possible models. 2743 */ 2744 vif_cfg_bits = bss_changed & BSS_CHANGED_VIF_CFG_BITS; 2745 if (vif_cfg_bits != 0) 2746 lkpi_80211_mo_vif_cfg_changed(hw, vif, vif_cfg_bits, false); 2747 2748 link_info_bits = bss_changed & ~(BSS_CHANGED_VIF_CFG_BITS); 2749 if (link_info_bits != 0) 2750 lkpi_80211_mo_link_info_changed(hw, vif, &vif->bss_conf, 2751 link_info_bits, 0, false); 2752 2753 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2754 } 2755 2756 /* -------------------------------------------------------------------------- */ 2757 2758 static int 2759 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2760 { 2761 return (0); 2762 } 2763 2764 /* UP1 */ 2765 static int 2766 lkpi_sta_init_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2767 { 2768 return (lkpi_sta_state_do_nada(vap, nstate, arg)); 2769 } 2770 2771 /* UP2 */ 2772 static int 2773 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2774 { 2775 struct linuxkpi_ieee80211_channel *chan; 2776 struct cfg80211_chan_def chandef; 2777 struct ieee80211_chanctx_conf *chanctx_conf; 2778 struct lkpi_hw *lhw; 2779 struct ieee80211_hw *hw; 2780 struct lkpi_vif *lvif; 2781 struct ieee80211_vif *vif; 2782 struct ieee80211_node *ni; 2783 struct lkpi_sta *lsta; 2784 enum ieee80211_bss_changed bss_changed; 2785 struct ieee80211_prep_tx_info prep_tx_info; 2786 uint32_t changed; 2787 int error; 2788 bool synched, can_ht; 2789 2790 /* 2791 * In here we use vap->iv_bss until lvif->lvif_bss is set. 2792 * For all later (STATE >= AUTH) functions we need to use the lvif 2793 * cache which will be tracked even through (*iv_update_bss)(). 2794 */ 2795 2796 if (vap->iv_bss == NULL) { 2797 ic_printf(vap->iv_ic, "%s: no iv_bss for vap %p\n", __func__, vap); 2798 return (EINVAL); 2799 } 2800 /* 2801 * Keep the ni alive locally. In theory (and practice) iv_bss can change 2802 * once we unlock here. This is due to net80211 allowing state changes 2803 * and new join1() despite having an active node as well as due to 2804 * the fact that the iv_bss can be swapped under the hood in (*iv_update_bss). 2805 */ 2806 ni = ieee80211_ref_node(vap->iv_bss); 2807 if (ni->ni_chan == NULL || ni->ni_chan == IEEE80211_CHAN_ANYC) { 2808 ic_printf(vap->iv_ic, "%s: no channel set for iv_bss ni %p " 2809 "on vap %p\n", __func__, ni, vap); 2810 ieee80211_free_node(ni); /* Error handling for the local ni. */ 2811 return (EINVAL); 2812 } 2813 2814 lhw = vap->iv_ic->ic_softc; 2815 chan = lkpi_find_lkpi80211_chan(lhw, ni->ni_chan); 2816 if (chan == NULL) { 2817 ic_printf(vap->iv_ic, "%s: failed to get LKPI channel from " 2818 "iv_bss ni %p on vap %p\n", __func__, ni, vap); 2819 ieee80211_free_node(ni); /* Error handling for the local ni. */ 2820 return (ESRCH); 2821 } 2822 2823 hw = LHW_TO_HW(lhw); 2824 lvif = VAP_TO_LVIF(vap); 2825 vif = LVIF_TO_VIF(lvif); 2826 2827 LKPI_80211_LVIF_LOCK(lvif); 2828 /* XXX-BZ KASSERT later? */ 2829 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) { 2830 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2831 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2832 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2833 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2834 lvif->lvif_bss_synched); 2835 LKPI_80211_LVIF_UNLOCK(lvif); 2836 ieee80211_free_node(ni); /* Error handling for the local ni. */ 2837 return (EBUSY); 2838 } 2839 LKPI_80211_LVIF_UNLOCK(lvif); 2840 2841 IEEE80211_UNLOCK(vap->iv_ic); 2842 wiphy_lock(hw->wiphy); 2843 2844 /* Add chanctx (or if exists, change it). */ 2845 chanctx_conf = lkpi_get_chanctx_conf(hw, vif); 2846 2847 KASSERT(ni->ni_chan != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC, 2848 ("%s:%d: ni %p ni_chan %p\n", __func__, __LINE__, ni, ni->ni_chan)); 2849 2850 #ifdef LKPI_80211_HT 2851 can_ht = (vap->iv_ic->ic_flags_ht & IEEE80211_FHT_HT) != 0; 2852 #else 2853 can_ht = false; 2854 #endif 2855 lkpi_init_chandef(vap->iv_ic, &chandef, chan, ni->ni_chan, can_ht); 2856 hw->conf.radar_enabled = 2857 ((chan->flags & IEEE80211_CHAN_RADAR) != 0) ? true : false; 2858 hw->conf.chandef = chandef; 2859 vif->bss_conf.chanreq.oper = hw->conf.chandef; 2860 #ifdef LINUXKPI_DEBUG_80211 2861 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 2862 ic_printf(vap->iv_ic, "%s:%d: hw->conf.chandef %p = chandef %p = " 2863 "vif->bss_conf.chanreq.oper %p\n", __func__, __LINE__, 2864 &hw->conf.chandef, &chandef, &vif->bss_conf.chanreq.oper); 2865 #endif 2866 2867 changed = lkpi_init_chanctx_conf(hw, &chandef, chanctx_conf); 2868 2869 /* Responder ... */ 2870 2871 /* Set bss info (bss_info_changed). */ 2872 bss_changed = 0; 2873 IEEE80211_ADDR_COPY(vif->cfg.ap_addr, ni->ni_bssid); 2874 vif->bss_conf.bssid = ni->ni_bssid; 2875 bss_changed |= BSS_CHANGED_BSSID; 2876 vif->bss_conf.txpower = ni->ni_txpower; 2877 bss_changed |= BSS_CHANGED_TXPOWER; 2878 vif->cfg.idle = false; 2879 bss_changed |= BSS_CHANGED_IDLE; 2880 2881 lvif->beacons = 0; 2882 /* Should almost assert it is this. */ 2883 vif->cfg.assoc = false; 2884 vif->cfg.aid = 0; 2885 2886 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2887 2888 error = lkpi_set_chanctx_conf(hw, vif, chanctx_conf, changed, true); 2889 if (error != 0) 2890 goto out; 2891 2892 IMPROVE("update radiotap chan fields too"); 2893 2894 /* RATES */ 2895 IMPROVE("bss info: not all needs to come now and rates are missing"); 2896 bss_changed |= lkpi_sta_supp_rates(hw, vif, ni, NULL); 2897 if (ieee80211_hw_check(hw, HAS_RATE_CONTROL)) 2898 lkpi_80211_mo_set_bitrate_mask(hw, vif, &lvif->br_mask); 2899 TODO("cfg80211_tid_config WHERE?"); 2900 2901 lkpi_bss_info_change(hw, vif, bss_changed); 2902 2903 /* 2904 * Given ni and lsta are 1:1 from alloc to free we can assert that 2905 * ni always has lsta data attach despite net80211 node swapping 2906 * under the hoods. 2907 */ 2908 KASSERT(ni->ni_drv_data != NULL, ("%s: ni %p ni_drv_data %p\n", 2909 __func__, ni, ni->ni_drv_data)); 2910 lsta = ni->ni_drv_data; 2911 2912 /* Insert the [l]sta into the list of known stations. */ 2913 list_add_tail(&lsta->lsta_list, &lvif->lsta_list); 2914 2915 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 2916 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2917 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 2918 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 2919 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2920 if (error != 0) { 2921 IMPROVE("do we need to undo the chan ctx?"); 2922 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2923 "failed: %d\n", __func__, __LINE__, error); 2924 goto out; 2925 } 2926 #if 0 2927 lsta->added_to_drv = true; /* mo manages. */ 2928 #endif 2929 2930 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2931 2932 #if 0 2933 /* 2934 * Wakeup all queues now that sta is there so we have as much time to 2935 * possibly prepare the queue in the driver to be ready for the 1st 2936 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 2937 * is no guarantee or way to check. 2938 * XXX-BZ and by now we know that this does not work on all drivers 2939 * for all queues. 2940 */ 2941 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 2942 #endif 2943 2944 /* Start mgd_prepare_tx. */ 2945 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2946 prep_tx_info.duration = PREP_TX_INFO_DURATION; /* SAE */ 2947 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 2948 prep_tx_info.link_id = 0; 2949 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2950 lsta->in_mgd = true; 2951 2952 /* 2953 * What is going to happen next: 2954 * - <twiddle> .. we should end up in "auth_to_assoc" 2955 * - event_callback 2956 * - update sta_state (NONE to AUTH) 2957 * - mgd_complete_tx 2958 * (ideally we'd do that on a callback for something else ...) 2959 */ 2960 2961 wiphy_unlock(hw->wiphy); 2962 IEEE80211_LOCK(vap->iv_ic); 2963 2964 LKPI_80211_LVIF_LOCK(lvif); 2965 /* Re-check given (*iv_update_bss) could have happened while we were unlocked. */ 2966 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL || 2967 lsta->ni != vap->iv_bss) 2968 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2969 "lvif_bss->ni %p synched %d, ni %p lsta %p\n", __func__, __LINE__, 2970 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2971 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2972 lvif->lvif_bss_synched, ni, lsta); 2973 2974 /* 2975 * Reference the "ni" for caching the lsta/ni in lvif->lvif_bss. 2976 * Given we cache lsta we use lsta->ni instead of ni here (even though 2977 * lsta->ni == ni) to be distinct from the rest of the code where we do 2978 * assume that ni == vap->iv_bss which it may or may not be. 2979 * So do NOT use iv_bss here anymore as that may have diverged from our 2980 * function local ni already while ic was unlocked and would lead to 2981 * inconsistencies. Go and see if we lost a race and do not update 2982 * lvif_bss_synched in that case. 2983 */ 2984 ieee80211_ref_node(lsta->ni); 2985 lvif->lvif_bss = lsta; 2986 if (lsta->ni == vap->iv_bss) { 2987 lvif->lvif_bss_synched = synched = true; 2988 } else { 2989 /* Set to un-synched no matter what. */ 2990 lvif->lvif_bss_synched = synched = false; 2991 /* 2992 * We do not error as someone has to take us down. 2993 * If we are followed by a 2nd, new net80211::join1() going to 2994 * AUTH lkpi_sta_a_to_a() will error, lkpi_sta_auth_to_{scan,init}() 2995 * will take the lvif->lvif_bss node down eventually. 2996 * What happens with the vap->iv_bss node will entirely be up 2997 * to net80211 as we never used the node beyond alloc()/free() 2998 * and we do not hold an extra reference for that anymore given 2999 * ni : lsta == 1:1. 3000 * Problem is if we do not error a MGMT/AUTH frame will be 3001 * sent from net80211::sta_newstate(); disable lsta queue below. 3002 */ 3003 } 3004 LKPI_80211_LVIF_UNLOCK(lvif); 3005 /* 3006 * Make sure in case the sta did not change and we re-added it, 3007 * that we can tx again but only if the vif/iv_bss are in sync. 3008 * Otherwise this should prevent the MGMT/AUTH frame from being 3009 * sent triggering a warning in iwlwifi. 3010 */ 3011 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3012 lsta->txq_ready = synched; 3013 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3014 goto out_relocked; 3015 3016 out: 3017 wiphy_unlock(hw->wiphy); 3018 IEEE80211_LOCK(vap->iv_ic); 3019 out_relocked: 3020 /* 3021 * Release the reference that kept the ni stable locally 3022 * during the work of this function. 3023 */ 3024 if (ni != NULL) 3025 ieee80211_free_node(ni); 3026 return (error); 3027 } 3028 3029 /* UP3.1 */ 3030 static int 3031 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3032 { 3033 struct lkpi_hw *lhw; 3034 struct ieee80211_hw *hw; 3035 struct lkpi_vif *lvif; 3036 struct ieee80211_vif *vif; 3037 struct lkpi_sta *lsta; 3038 struct ieee80211_prep_tx_info prep_tx_info; 3039 int error; 3040 3041 lhw = vap->iv_ic->ic_softc; 3042 hw = LHW_TO_HW(lhw); 3043 lvif = VAP_TO_LVIF(vap); 3044 vif = LVIF_TO_VIF(lvif); 3045 3046 IEEE80211_UNLOCK(vap->iv_ic); 3047 wiphy_lock(hw->wiphy); 3048 3049 LKPI_80211_LVIF_LOCK(lvif); 3050 /* XXX-BZ KASSERT later? */ 3051 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 3052 #ifdef LINUXKPI_DEBUG_80211 3053 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3054 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3055 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3056 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3057 lvif->lvif_bss_synched); 3058 #endif 3059 error = ENOTRECOVERABLE; 3060 LKPI_80211_LVIF_UNLOCK(lvif); 3061 goto out; 3062 } 3063 lsta = lvif->lvif_bss; 3064 LKPI_80211_LVIF_UNLOCK(lvif); 3065 3066 KASSERT(lsta != NULL, ("%s: lsta %p\n", __func__, lsta)); 3067 3068 /* Finish auth. */ 3069 IMPROVE("event callback"); 3070 3071 /* Update sta_state (NONE to AUTH). */ 3072 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 3073 "NONE: %#x\n", __func__, lsta, lsta->state)); 3074 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 3075 if (error != 0) { 3076 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 3077 "failed: %d\n", __func__, __LINE__, error); 3078 goto out; 3079 } 3080 3081 /* End mgd_complete_tx. */ 3082 if (lsta->in_mgd) { 3083 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3084 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3085 prep_tx_info.success = true; 3086 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3087 lsta->in_mgd = false; 3088 } 3089 3090 /* Now start assoc. unless nstate=RUN (auth_to_run). */ 3091 3092 /* Start mgd_prepare_tx. */ 3093 if (nstate == IEEE80211_S_ASSOC && !lsta->in_mgd) { 3094 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3095 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3096 prep_tx_info.link_id = 0; 3097 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 3098 lsta->in_mgd = true; 3099 } 3100 3101 #if 0 3102 /* We do not yet have a packet to go out. */ 3103 /* Wake tx queue to get packet out. */ 3104 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, true); 3105 #endif 3106 3107 /* 3108 * <twiddle> .. we end up in "assoc_to_run" 3109 * - update sta_state (AUTH to ASSOC) 3110 * - conf_tx [all] 3111 * - bss_info_changed (assoc, aid, ssid, ..) 3112 * - change_chanctx (if needed) 3113 * - event_callback 3114 * - mgd_complete_tx 3115 */ 3116 3117 out: 3118 wiphy_unlock(hw->wiphy); 3119 IEEE80211_LOCK(vap->iv_ic); 3120 return (error); 3121 } 3122 3123 static int lkpi_sta_assoc_to_run(struct ieee80211vap *, enum ieee80211_state, int); 3124 3125 /* UP3.2 */ 3126 static int 3127 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3128 { 3129 int error; 3130 3131 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 3132 if (error == 0) 3133 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 3134 return (error); 3135 } 3136 3137 /* UP4 */ 3138 static int 3139 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3140 { 3141 struct lkpi_hw *lhw; 3142 struct ieee80211_hw *hw; 3143 struct lkpi_vif *lvif; 3144 struct ieee80211_vif *vif; 3145 struct ieee80211_node *ni; 3146 struct lkpi_sta *lsta; 3147 struct ieee80211_sta *sta; 3148 struct ieee80211_prep_tx_info prep_tx_info; 3149 enum ieee80211_bss_changed bss_changed; 3150 int error; 3151 3152 lhw = vap->iv_ic->ic_softc; 3153 hw = LHW_TO_HW(lhw); 3154 lvif = VAP_TO_LVIF(vap); 3155 vif = LVIF_TO_VIF(lvif); 3156 3157 IEEE80211_UNLOCK(vap->iv_ic); 3158 wiphy_lock(hw->wiphy); 3159 3160 LKPI_80211_LVIF_LOCK(lvif); 3161 /* XXX-BZ KASSERT later? */ 3162 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 3163 #ifdef LINUXKPI_DEBUG_80211 3164 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3165 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3166 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3167 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3168 lvif->lvif_bss_synched); 3169 #endif 3170 LKPI_80211_LVIF_UNLOCK(lvif); 3171 error = ENOTRECOVERABLE; 3172 goto out; 3173 } 3174 lsta = lvif->lvif_bss; 3175 LKPI_80211_LVIF_UNLOCK(lvif); 3176 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3177 "lvif %p vap %p\n", __func__, 3178 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3179 3180 ni = lsta->ni; /* Reference held for lvif_bss. */ 3181 3182 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 3183 "and to lesser extend ieee80211_notify_node_join"); 3184 3185 /* Finish assoc. */ 3186 /* Update sta_state (AUTH to ASSOC) and set aid. */ 3187 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 3188 "AUTH: %#x\n", __func__, lsta, lsta->state)); 3189 sta = LSTA_TO_STA(lsta); 3190 sta->aid = IEEE80211_NODE_AID(ni); 3191 #ifdef LKPI_80211_WME 3192 if (vap->iv_flags & IEEE80211_F_WME) 3193 sta->wme = true; 3194 #endif 3195 bss_changed = 0; 3196 /* 3197 * This sync needs to happen before the sta_state change to ASSOC. 3198 * At least mt7921 (likely all drivers) rely on, e.g., ht_cap, vht_cap, 3199 * .. to be set at the point we go to assoc. 3200 */ 3201 bss_changed |= lkpi_sta_sync_from_ni(hw, vif, sta, ni, true); 3202 if (ieee80211_hw_check(hw, HAS_RATE_CONTROL)) 3203 lkpi_80211_mo_set_bitrate_mask(hw, vif, &lvif->br_mask); 3204 3205 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 3206 if (error != 0) { 3207 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 3208 "failed: %d\n", __func__, __LINE__, error); 3209 goto out; 3210 } 3211 3212 IMPROVE("wme / conf_tx [all]"); 3213 3214 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 3215 #ifdef LKPI_80211_WME 3216 bss_changed |= lkpi_wme_update(lhw, vap, true); 3217 #endif 3218 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 3219 lvif->beacons = 0; 3220 vif->cfg.assoc = true; 3221 vif->cfg.aid = IEEE80211_NODE_AID(ni); 3222 bss_changed |= BSS_CHANGED_ASSOC; 3223 } 3224 /* We set SSID but this is not BSSID! */ 3225 vif->cfg.ssid_len = ni->ni_esslen; 3226 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 3227 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 3228 vif->bss_conf.use_short_preamble) { 3229 vif->bss_conf.use_short_preamble ^= 1; 3230 /* bss_changed |= BSS_CHANGED_??? */ 3231 } 3232 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 3233 vif->bss_conf.use_short_slot) { 3234 vif->bss_conf.use_short_slot ^= 1; 3235 /* bss_changed |= BSS_CHANGED_??? */ 3236 } 3237 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 3238 vif->bss_conf.qos) { 3239 vif->bss_conf.qos ^= 1; 3240 bss_changed |= BSS_CHANGED_QOS; 3241 } 3242 3243 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 3244 lkpi_bss_info_change(hw, vif, bss_changed); 3245 3246 /* - change_chanctx (if needed) 3247 * - event_callback 3248 */ 3249 3250 /* End mgd_complete_tx. (we do not have to check ostate == IEEE80211_S_ASSOC). */ 3251 if (lsta->in_mgd) { 3252 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3253 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3254 prep_tx_info.success = true; /* Needs vif->cfg.assoc set! */ 3255 prep_tx_info.link_id = 0; 3256 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3257 lsta->in_mgd = false; 3258 } 3259 3260 /* 3261 * And then: 3262 * - (more packets)? 3263 * - set_key 3264 * - set_default_unicast_key 3265 * - set_key (?) 3266 * - ipv6_addr_change (?) 3267 */ 3268 3269 if (!ieee80211_node_is_authorized(ni)) { 3270 IMPROVE("net80211 does not consider node authorized"); 3271 } 3272 3273 bss_changed = 0; 3274 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 3275 3276 /* Update thresholds. */ 3277 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 3278 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 3279 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 3280 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 3281 3282 /* Update sta_state (ASSOC to AUTHORIZED). */ 3283 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3284 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 3285 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 3286 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 3287 if (error != 0) { 3288 IMPROVE("undo some changes?"); 3289 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 3290 "failed: %d\n", __func__, __LINE__, error); 3291 goto out; 3292 } 3293 3294 /* - drv_config (?) 3295 * - bss_info_changed 3296 * - set_rekey_data (?) 3297 * 3298 * And now we should be passing packets. 3299 */ 3300 IMPROVE("Need that bssid setting, and the keys"); 3301 3302 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 3303 lkpi_bss_info_change(hw, vif, bss_changed); 3304 3305 /* Prepare_multicast && configure_filter. */ 3306 lkpi_update_mcast_filter_locked(vap->iv_ic); 3307 3308 out: 3309 wiphy_unlock(hw->wiphy); 3310 IEEE80211_LOCK(vap->iv_ic); 3311 return (error); 3312 } 3313 3314 /* 3315 * DOWN1 3316 * "to assoc" means we are going back to State 2 from State 4[/3]. 3317 * This means ni still is authenticated, so we keep sta, chanctx, .. 3318 * We will send a (Re)Assoc Request in case net80211 handles roadming. 3319 * Note: this can be called as part of a DEAUTH going to State 1 as well, 3320 * so for RoC prep_tx_info we need to check nstate (see run_to_{auth,scan,init}). 3321 */ 3322 static int 3323 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3324 { 3325 struct lkpi_hw *lhw; 3326 struct ieee80211_hw *hw; 3327 struct lkpi_vif *lvif; 3328 struct ieee80211_vif *vif; 3329 struct ieee80211_node *ni; 3330 struct lkpi_sta *lsta; 3331 struct ieee80211_sta *sta; 3332 struct ieee80211_prep_tx_info prep_tx_info; 3333 #if 0 3334 enum ieee80211_bss_changed bss_changed; 3335 #endif 3336 struct ieee80211_rx_ampdu *rap; 3337 int error; 3338 3339 lhw = vap->iv_ic->ic_softc; 3340 hw = LHW_TO_HW(lhw); 3341 lvif = VAP_TO_LVIF(vap); 3342 vif = LVIF_TO_VIF(lvif); 3343 3344 IEEE80211_UNLOCK(vap->iv_ic); 3345 wiphy_lock(hw->wiphy); 3346 3347 LKPI_80211_LVIF_LOCK(lvif); 3348 #ifdef LINUXKPI_DEBUG_80211 3349 /* XXX-BZ KASSERT later; state going down so no action. */ 3350 if (lvif->lvif_bss == NULL) 3351 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3352 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3353 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3354 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3355 lvif->lvif_bss_synched); 3356 #endif 3357 lsta = lvif->lvif_bss; 3358 LKPI_80211_LVIF_UNLOCK(lvif); 3359 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3360 "lvif %p vap %p\n", __func__, 3361 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3362 3363 ni = lsta->ni; /* Reference held for lvif_bss. */ 3364 sta = LSTA_TO_STA(lsta); 3365 3366 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3367 3368 /* flush, drop. */ 3369 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 3370 3371 /* We should make this a KASSERT. */ 3372 if (lsta->in_mgd) { 3373 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p lsta %p in_mgd\n", 3374 __func__, __LINE__, lvif, vap, lsta); 3375 } 3376 /* 3377 * Problem is that we should hook into the tx/rx flow and not 3378 * try to re-model the state machine parts. We may miss a SME 3379 * triggered frame this way. 3380 */ 3381 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3382 if (nstate == IEEE80211_S_ASSOC) { 3383 if (vap->iv_roaming == IEEE80211_ROAMING_AUTO) { 3384 if (arg) 3385 prep_tx_info.subtype = IEEE80211_STYPE_REASSOC_REQ; 3386 else 3387 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3388 } else { 3389 /* wpa_supplicant upon RTM_IEEE80211_LEAVE. */ 3390 prep_tx_info.subtype = IEEE80211_STYPE_DISASSOC; 3391 } 3392 } else 3393 prep_tx_info.subtype = IEEE80211_STYPE_DEAUTH; 3394 prep_tx_info.was_assoc = true; 3395 prep_tx_info.link_id = 0; 3396 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 3397 lsta->in_mgd = true; 3398 3399 wiphy_unlock(hw->wiphy); 3400 IEEE80211_LOCK(vap->iv_ic); 3401 3402 /* Call iv_newstate first so we get potential (RE-)ASSOC/DEAUTH? packet out. */ 3403 error = lvif->iv_newstate(vap, nstate, arg); 3404 if (error != 0) { 3405 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 3406 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 3407 goto outni; 3408 } 3409 3410 /* Stop any BA sessions if still active. */ 3411 for (int rapn = 0; rapn < WME_NUM_TID; rapn++) { 3412 rap = &ni->ni_rx_ampdu[rapn]; 3413 3414 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 3415 continue; 3416 3417 vap->iv_ic->ic_ampdu_rx_stop(ni, rap); 3418 } 3419 3420 IEEE80211_UNLOCK(vap->iv_ic); 3421 3422 /* Ensure the packets get out. */ 3423 lkpi_80211_flush_tx(lhw, lsta); 3424 3425 wiphy_lock(hw->wiphy); 3426 3427 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3428 3429 /* Wake tx queues to get packet(s) out. */ 3430 lkpi_wake_tx_queues(hw, sta, false, true); 3431 3432 /* flush, no drop */ 3433 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 3434 3435 /* End mgd_complete_tx. */ 3436 /* We should make this a KASSERT. */ 3437 if (!lsta->in_mgd) { 3438 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p lsta %p !in_mgd\n", 3439 __func__, __LINE__, lvif, vap, lsta); 3440 } 3441 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3442 lsta->in_mgd = false; 3443 3444 #if 0 3445 /* sync_rx_queues */ 3446 lkpi_80211_mo_sync_rx_queues(hw); 3447 3448 /* sta_pre_rcu_remove */ 3449 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 3450 #endif 3451 3452 /* Take the station down. */ 3453 3454 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 3455 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3456 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 3457 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 3458 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 3459 if (error != 0) { 3460 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 3461 "failed: %d\n", __func__, __LINE__, error); 3462 goto out; 3463 } 3464 3465 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3466 3467 #ifdef LKPI_80211_HW_CRYPTO 3468 if (lkpi_hwcrypto) { 3469 error = lkpi_sta_del_keys(hw, vif, lsta); 3470 if (error != 0) { 3471 ic_printf(vap->iv_ic, "%s:%d: lkpi_sta_del_keys " 3472 "failed: %d\n", __func__, __LINE__, error); 3473 /* 3474 * Either drv/fw will crash or cleanup itself, 3475 * otherwise net80211 will delete the keys (at a 3476 * less appropriate time). 3477 */ 3478 /* goto out; */ 3479 } 3480 } 3481 #endif 3482 3483 /* Update sta_state (ASSOC to AUTH). */ 3484 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3485 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 3486 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 3487 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 3488 if (error != 0) { 3489 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 3490 "failed: %d\n", __func__, __LINE__, error); 3491 goto out; 3492 } 3493 3494 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3495 3496 #if 0 3497 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 3498 /* See comment in DOWN4. */ 3499 lkpi_disassoc(sta, vif, lhw); 3500 #endif 3501 3502 error = EALREADY; 3503 out: 3504 wiphy_unlock(hw->wiphy); 3505 IEEE80211_LOCK(vap->iv_ic); 3506 outni: 3507 return (error); 3508 } 3509 3510 /* 3511 * DOWN2 3512 * We are in state 2 and go back to state 1 and will try to auth again 3513 * (to IEEE80211_S_AUTH in FreeBSD means "try to auth"). This should be 3514 * like scan_to_auth but that we keep the "ni" and with that chanctx/bssid, 3515 * which essentially makes this "a_to_a" in LinuxKPI. 3516 */ 3517 static int 3518 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3519 { 3520 struct lkpi_hw *lhw; 3521 struct ieee80211_hw *hw; 3522 struct lkpi_vif *lvif; 3523 struct ieee80211_vif *vif; 3524 struct ieee80211_node *ni; 3525 struct lkpi_sta *lsta; 3526 struct ieee80211_prep_tx_info prep_tx_info; 3527 int error; 3528 3529 lhw = vap->iv_ic->ic_softc; 3530 hw = LHW_TO_HW(lhw); 3531 lvif = VAP_TO_LVIF(vap); 3532 vif = LVIF_TO_VIF(lvif); 3533 3534 IEEE80211_UNLOCK(vap->iv_ic); 3535 wiphy_lock(hw->wiphy); 3536 3537 LKPI_80211_LVIF_LOCK(lvif); 3538 #ifdef LINUXKPI_DEBUG_80211 3539 /* XXX-BZ KASSERT later; state going down so no action. */ 3540 if (lvif->lvif_bss == NULL) 3541 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3542 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3543 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3544 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3545 lvif->lvif_bss_synched); 3546 #endif 3547 lsta = lvif->lvif_bss; 3548 LKPI_80211_LVIF_UNLOCK(lvif); 3549 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3550 "lvif %p vap %p\n", __func__, 3551 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3552 3553 ni = lsta->ni; /* Reference held for lvif_bss. */ 3554 3555 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3556 3557 /* End mgd_complete_tx. */ 3558 if (lsta->in_mgd && vap->iv_state == IEEE80211_S_ASSOC) { 3559 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3560 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3561 prep_tx_info.link_id = 0; 3562 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3563 lsta->in_mgd = false; 3564 } else if (lsta->in_mgd) { 3565 ic_printf(vap->iv_ic, "%s:%d: in_mgd %d (%s) -> %d (%s) %d\n", 3566 __func__, __LINE__, 3567 vap->iv_state, ieee80211_state_name[vap->iv_state], 3568 nstate, ieee80211_state_name[nstate], arg); 3569 } 3570 3571 /* Take the station down. */ 3572 /* Update sta_state (AUTH to NONE). */ 3573 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3574 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 3575 "AUTH: %#x\n", __func__, lsta, lsta->state)); 3576 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 3577 if (error != 0) { 3578 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 3579 "failed: %d\n", __func__, __LINE__, error); 3580 goto out; 3581 } 3582 3583 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3584 3585 out: 3586 wiphy_unlock(hw->wiphy); 3587 IEEE80211_LOCK(vap->iv_ic); 3588 return (error); 3589 } 3590 3591 /* 3592 * DOWN3 3593 * We are in state 1. Either auth timed out (arg != 0) or we have an internal 3594 * state change forcing us to give up trying to authenticate. 3595 * Cleanup and remove chanctx, sta, ... 3596 */ 3597 static int 3598 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3599 { 3600 struct lkpi_hw *lhw; 3601 struct ieee80211_hw *hw; 3602 struct lkpi_vif *lvif; 3603 struct ieee80211_vif *vif; 3604 struct ieee80211_node *ni; 3605 struct lkpi_sta *lsta; 3606 struct ieee80211_sta *sta; 3607 struct ieee80211_prep_tx_info prep_tx_info; 3608 enum ieee80211_bss_changed bss_changed; 3609 int error; 3610 3611 lhw = vap->iv_ic->ic_softc; 3612 hw = LHW_TO_HW(lhw); 3613 lvif = VAP_TO_LVIF(vap); 3614 vif = LVIF_TO_VIF(lvif); 3615 3616 IEEE80211_UNLOCK(vap->iv_ic); 3617 wiphy_lock(hw->wiphy); 3618 3619 LKPI_80211_LVIF_LOCK(lvif); 3620 /* 3621 * XXX-BZ KASSERT later; state going down so no action in theory 3622 * but try to avoid a NULL-pointer derref for now and gracefully 3623 * fail for non-debug kernels. 3624 */ 3625 if (lvif->lvif_bss == NULL) { 3626 ic_printf(vap->iv_ic, "%s:%d: ERROR: lvif %p vap %p iv_bss %p " 3627 "lvif_bss %p lvif_bss->ni %p synched %d; " 3628 "expect follow-up problems\n", __func__, __LINE__, 3629 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3630 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3631 lvif->lvif_bss_synched); 3632 LKPI_80211_LVIF_UNLOCK(lvif); 3633 /* 3634 * This will likely lead to a firmware crash (if there 3635 * was not one before already) and need a 3636 * ieee80211_restart_hw() but still better than a panic 3637 * for users as they can at least recover. 3638 */ 3639 error = ENOTRECOVERABLE; 3640 goto out; 3641 } 3642 lsta = lvif->lvif_bss; 3643 LKPI_80211_LVIF_UNLOCK(lvif); 3644 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3645 "lvif %p vap %p\n", __func__, 3646 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3647 ni = lsta->ni; /* Reference held for lvif_bss. */ 3648 sta = LSTA_TO_STA(lsta); 3649 3650 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3651 3652 /* flush, drop. */ 3653 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 3654 3655 /* Wake tx queues to get packet(s) out. */ 3656 lkpi_wake_tx_queues(hw, sta, false, true); 3657 3658 /* flush, no drop */ 3659 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 3660 3661 /* End mgd_complete_tx. */ 3662 if (lsta->in_mgd) { 3663 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3664 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3665 prep_tx_info.link_id = 0; 3666 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3667 lsta->in_mgd = false; 3668 } 3669 3670 /* sync_rx_queues */ 3671 lkpi_80211_mo_sync_rx_queues(hw); 3672 3673 #ifdef LKPI_80211_HW_CRYPTO 3674 if (lkpi_hwcrypto) { 3675 error = lkpi_sta_del_keys(hw, vif, lsta); 3676 if (error != 0) { 3677 ic_printf(vap->iv_ic, "%s:%d: lkpi_sta_del_keys " 3678 "failed: %d\n", __func__, __LINE__, error); 3679 /* 3680 * Either drv/fw will crash or cleanup itself, 3681 * otherwise net80211 will delete the keys (at a 3682 * less appropriate time). 3683 */ 3684 /* goto out; */ 3685 } 3686 } 3687 #endif 3688 3689 /* sta_pre_rcu_remove */ 3690 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 3691 3692 synchronize_net(); 3693 3694 /* Take the station down. */ 3695 3696 bss_changed = 0; 3697 /* 3698 * Start updating bss info (*bss_info_changed) (assoc, aid, ..). 3699 * 3700 * One would expect this to happen when going off AUTHORIZED but 3701 * not so. 3702 * 3703 * Immediately issuing the (*bss_info_changed) used to also remove the 3704 * sta from firmware for iwlwifi; or we have problems with the sta 3705 * silently not being removed and then crash upon the next sta add. 3706 * Neither seems to be the case or a problem still. 3707 * 3708 * Contrary for BE200 (iwlwifi/mld) if we do not issue the 3709 * (*vif_cfg_change) to tell FW that we are no longer assoc 3710 * it will crash now upon sta rm. So the order now is as we once 3711 * expected it: 3712 * 3713 * 1) lkpi_disassoc(): set vif->cfg.assoc = false and .aid=0 3714 * 2) add the remaining BSS_CHANGED changes and call (*bss_info_changed) 3715 * (which may be split up into (*vif_cfg_change) and 3716 * (*link_info_changed) for more modern drivers). 3717 * 3) call the last sta_state update -> IEEE80211_STA_NOTEXIST 3718 * (removes the sta given assoc is false) and tidy up our lists. 3719 * 4) call unassign_vif_chanctx 3720 * 5) call lkpi_hw_conf_idle 3721 * 6) call remove_chanctx 3722 * 3723 * Note: vif->driver_flags & IEEE80211_VIF_REMOVE_AP_AFTER_DISASSOC 3724 * might change this. 3725 */ 3726 bss_changed |= lkpi_disassoc(sta, vif, lhw); 3727 3728 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3729 3730 IMPROVE("Any bss_info changes to announce?"); 3731 vif->bss_conf.qos = false; 3732 bss_changed |= BSS_CHANGED_QOS; 3733 vif->cfg.ssid_len = 0; 3734 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 3735 IEEE80211_ADDR_COPY(vif->cfg.ap_addr, ieee80211broadcastaddr); 3736 bss_changed |= BSS_CHANGED_BSSID; 3737 vif->bss_conf.use_short_preamble = false; 3738 /* XXX BSS_CHANGED_???? */ 3739 vif->bss_conf.dtim_period = 0; /* go back to 0. */ 3740 bss_changed |= BSS_CHANGED_BEACON_INFO; 3741 lkpi_bss_info_change(hw, vif, bss_changed); 3742 3743 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 3744 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3745 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 3746 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 3747 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 3748 if (error != 0) { 3749 IMPROVE("do we need to undo the chan ctx?"); 3750 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 3751 "failed: %d\n", __func__, __LINE__, error); 3752 goto out; 3753 } 3754 3755 lkpi_lsta_remove(lsta, lvif); 3756 3757 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3758 3759 LKPI_80211_LVIF_LOCK(lvif); 3760 /* Remove ni reference for this cache of lsta. */ 3761 lvif->lvif_bss = NULL; 3762 lvif->lvif_bss_synched = false; 3763 LKPI_80211_LVIF_UNLOCK(lvif); 3764 3765 /* conf_tx */ 3766 3767 lkpi_remove_chanctx(hw, vif); 3768 3769 out: 3770 wiphy_unlock(hw->wiphy); 3771 IEEE80211_LOCK(vap->iv_ic); 3772 if (error == 0) { 3773 /* 3774 * We do this outside the wiphy lock as net80211::node_free() may call 3775 * into crypto code to delete keys and we have a recursed on 3776 * non-recursive sx panic. Also only do this if we get here w/o error. 3777 * 3778 * The very last release the reference on the ni for the ni/lsta on 3779 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 3780 * and potentially freed. 3781 */ 3782 ieee80211_free_node(ni); 3783 } 3784 return (error); 3785 } 3786 3787 /* DOWN4 */ 3788 static int 3789 lkpi_sta_scan_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3790 { 3791 /* lkpi_iv_newstate() handles the stop scan case in common code. */ 3792 return (lkpi_sta_state_do_nada(vap, nstate, arg)); 3793 } 3794 3795 /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ 3796 3797 static int 3798 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3799 { 3800 int error; 3801 3802 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 3803 if (error == 0) 3804 error = lkpi_sta_scan_to_init(vap, nstate, arg); 3805 return (error); 3806 } 3807 3808 /* auth_to_auth, assoc_to_assoc. */ 3809 static int 3810 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3811 { 3812 struct lkpi_hw *lhw; 3813 struct ieee80211_hw *hw; 3814 struct lkpi_vif *lvif; 3815 struct ieee80211_vif *vif; 3816 struct lkpi_sta *lsta; 3817 struct ieee80211_prep_tx_info prep_tx_info; 3818 int error; 3819 3820 lhw = vap->iv_ic->ic_softc; 3821 hw = LHW_TO_HW(lhw); 3822 lvif = VAP_TO_LVIF(vap); 3823 vif = LVIF_TO_VIF(lvif); 3824 3825 IEEE80211_UNLOCK(vap->iv_ic); 3826 wiphy_lock(hw->wiphy); 3827 3828 LKPI_80211_LVIF_LOCK(lvif); 3829 /* XXX-BZ KASSERT later? */ 3830 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 3831 #ifdef LINUXKPI_DEBUG_80211 3832 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3833 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3834 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3835 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3836 lvif->lvif_bss_synched); 3837 #endif 3838 LKPI_80211_LVIF_UNLOCK(lvif); 3839 error = ENOTRECOVERABLE; 3840 goto out; 3841 } 3842 lsta = lvif->lvif_bss; 3843 LKPI_80211_LVIF_UNLOCK(lvif); 3844 3845 KASSERT(lsta != NULL, ("%s: lsta %p! lvif %p vap %p\n", __func__, 3846 lsta, lvif, vap)); 3847 3848 IMPROVE("event callback?"); 3849 3850 /* End mgd_complete_tx. */ 3851 if (lsta->in_mgd) { 3852 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3853 if (vap->iv_state == IEEE80211_S_AUTH) 3854 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3855 else 3856 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3857 prep_tx_info.link_id = 0; 3858 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3859 lsta->in_mgd = false; 3860 } 3861 3862 /* Now start auth/assoc. */ 3863 3864 /* Start mgd_prepare_tx. */ 3865 if (!lsta->in_mgd) { 3866 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3867 if (nstate == IEEE80211_S_AUTH) 3868 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3869 else 3870 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3871 prep_tx_info.link_id = 0; 3872 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 3873 lsta->in_mgd = true; 3874 } 3875 3876 error = 0; 3877 out: 3878 wiphy_unlock(hw->wiphy); 3879 IEEE80211_LOCK(vap->iv_ic); 3880 3881 return (error); 3882 } 3883 3884 static int 3885 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3886 { 3887 int error; 3888 3889 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 3890 if (error != 0 && error != EALREADY) 3891 return (error); 3892 3893 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 3894 return (error); 3895 } 3896 3897 static int 3898 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3899 { 3900 int error; 3901 3902 error = lkpi_sta_assoc_to_scan(vap, nstate, arg); 3903 if (error != 0 && error != EALREADY) 3904 return (error); 3905 3906 error = lkpi_sta_scan_to_init(vap, nstate, arg); /* do_nada */ 3907 return (error); 3908 } 3909 3910 static int 3911 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3912 { 3913 int error; 3914 3915 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 3916 if (error != 0 && error != EALREADY) 3917 return (error); 3918 3919 error = lkpi_sta_assoc_to_init(vap, nstate, arg); 3920 return (error); 3921 } 3922 3923 static int 3924 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3925 { 3926 int error; 3927 3928 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 3929 if (error != 0 && error != EALREADY) 3930 return (error); 3931 3932 error = lkpi_sta_assoc_to_scan(vap, nstate, arg); 3933 return (error); 3934 } 3935 3936 static int 3937 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3938 { 3939 int error; 3940 3941 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 3942 if (error != 0 && error != EALREADY) 3943 return (error); 3944 3945 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 3946 return (error); 3947 } 3948 3949 /* -------------------------------------------------------------------------- */ 3950 3951 /* 3952 * The matches the documented state changes in net80211::sta_newstate(). 3953 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 3954 * there are "invalid" (so there is a room for failure here). 3955 */ 3956 struct fsm_state { 3957 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 3958 enum ieee80211_state ostate; 3959 enum ieee80211_state nstate; 3960 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 3961 } sta_state_fsm[] = { 3962 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 3963 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* DOWN4 scan_to_init */ 3964 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 3965 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 3966 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 3967 3968 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_init_to_scan }, /* UP1 */ 3969 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 3970 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, /* DOWN3 */ 3971 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 3972 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 3973 3974 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 3975 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* UP2 Send AUTH. */ 3976 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 3977 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* DOWN2 Send ?AUTH. */ 3978 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 3979 3980 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* UP3.1 Send ASSOCREQ. */ 3981 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 3982 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* DOWN1 Send ASSOCREQ/REASSOCREQ. */ 3983 3984 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, /* UP3.2 */ 3985 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, /* UP4 */ 3986 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 3987 3988 /* Dummy at the end without handler. */ 3989 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 3990 }; 3991 3992 static int 3993 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3994 { 3995 struct ieee80211com *ic; 3996 struct lkpi_hw *lhw; 3997 struct lkpi_vif *lvif; 3998 struct ieee80211_vif *vif; 3999 struct fsm_state *s; 4000 enum ieee80211_state ostate; 4001 int error; 4002 4003 ic = vap->iv_ic; 4004 IEEE80211_LOCK_ASSERT(ic); 4005 ostate = vap->iv_state; 4006 4007 #ifdef LINUXKPI_DEBUG_80211 4008 if (linuxkpi_debug_80211 & D80211_TRACE) 4009 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 4010 __func__, __LINE__, vap, nstate, arg); 4011 #endif 4012 4013 if (vap->iv_opmode == IEEE80211_M_STA) { 4014 4015 lhw = ic->ic_softc; 4016 lvif = VAP_TO_LVIF(vap); 4017 vif = LVIF_TO_VIF(lvif); 4018 4019 /* No need to replicate this in most state handlers. */ 4020 if (nstate > IEEE80211_S_SCAN) 4021 lkpi_stop_hw_scan(lhw, vif); 4022 4023 s = sta_state_fsm; 4024 4025 } else { 4026 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 4027 "vap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 4028 return (ENOSYS); 4029 } 4030 4031 error = 0; 4032 for (; s->handler != NULL; s++) { 4033 if (ostate == s->ostate && nstate == s->nstate) { 4034 #ifdef LINUXKPI_DEBUG_80211 4035 if (linuxkpi_debug_80211 & D80211_TRACE) 4036 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 4037 " %d (%s): arg %d.\n", __func__, 4038 ostate, ieee80211_state_name[ostate], 4039 nstate, ieee80211_state_name[nstate], arg); 4040 #endif 4041 error = s->handler(vap, nstate, arg); 4042 break; 4043 } 4044 } 4045 IEEE80211_LOCK_ASSERT(vap->iv_ic); 4046 4047 if (s->handler == NULL) { 4048 IMPROVE("turn this into a KASSERT\n"); 4049 ic_printf(vap->iv_ic, "%s: unsupported state transition " 4050 "%d (%s) -> %d (%s)\n", __func__, 4051 ostate, ieee80211_state_name[ostate], 4052 nstate, ieee80211_state_name[nstate]); 4053 return (ENOSYS); 4054 } 4055 4056 if (error == EALREADY) { 4057 #ifdef LINUXKPI_DEBUG_80211 4058 if (linuxkpi_debug_80211 & D80211_TRACE) 4059 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 4060 "%d (%s): iv_newstate already handled: %d.\n", 4061 __func__, ostate, ieee80211_state_name[ostate], 4062 nstate, ieee80211_state_name[nstate], error); 4063 #endif 4064 return (0); 4065 } 4066 4067 if (error != 0) { 4068 ic_printf(vap->iv_ic, "%s: error %d during state transition " 4069 "%d (%s) -> %d (%s)\n", __func__, error, 4070 ostate, ieee80211_state_name[ostate], 4071 nstate, ieee80211_state_name[nstate]); 4072 return (error); 4073 } 4074 4075 #ifdef LINUXKPI_DEBUG_80211 4076 if (linuxkpi_debug_80211 & D80211_TRACE) 4077 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 4078 "calling net80211 parent\n", 4079 __func__, __LINE__, vap, nstate, arg); 4080 #endif 4081 4082 return (lvif->iv_newstate(vap, nstate, arg)); 4083 } 4084 4085 /* -------------------------------------------------------------------------- */ 4086 4087 /* 4088 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 4089 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 4090 * new node without us knowing and thus our ni/lsta are out of sync. 4091 */ 4092 static struct ieee80211_node * 4093 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 4094 { 4095 struct lkpi_vif *lvif; 4096 struct ieee80211_node *rni; 4097 4098 IEEE80211_LOCK_ASSERT(vap->iv_ic); 4099 4100 lvif = VAP_TO_LVIF(vap); 4101 4102 LKPI_80211_LVIF_LOCK(lvif); 4103 lvif->lvif_bss_synched = false; 4104 LKPI_80211_LVIF_UNLOCK(lvif); 4105 4106 rni = lvif->iv_update_bss(vap, ni); 4107 return (rni); 4108 } 4109 4110 #ifdef LKPI_80211_WME 4111 static int 4112 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 4113 { 4114 struct ieee80211com *ic; 4115 struct ieee80211_hw *hw; 4116 struct lkpi_vif *lvif; 4117 struct ieee80211_vif *vif; 4118 struct chanAccParams chp; 4119 struct wmeParams wmeparr[WME_NUM_AC]; 4120 struct ieee80211_tx_queue_params txqp; 4121 enum ieee80211_bss_changed bss_changed; 4122 int error; 4123 uint16_t ac; 4124 4125 hw = LHW_TO_HW(lhw); 4126 lockdep_assert_wiphy(hw->wiphy); 4127 4128 IMPROVE(); 4129 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 4130 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 4131 4132 if (vap == NULL) 4133 return (0); 4134 4135 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 4136 return (0); 4137 4138 if (lhw->ops->conf_tx == NULL) 4139 return (0); 4140 4141 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 4142 lhw->update_wme = true; 4143 return (0); 4144 } 4145 lhw->update_wme = false; 4146 4147 ic = lhw->ic; 4148 ieee80211_wme_ic_getparams(ic, &chp); 4149 IEEE80211_LOCK(ic); 4150 for (ac = 0; ac < WME_NUM_AC; ac++) 4151 wmeparr[ac] = chp.cap_wmeParams[ac]; 4152 IEEE80211_UNLOCK(ic); 4153 4154 lvif = VAP_TO_LVIF(vap); 4155 vif = LVIF_TO_VIF(lvif); 4156 4157 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 4158 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4159 struct wmeParams *wmep; 4160 4161 wmep = &wmeparr[ac]; 4162 bzero(&txqp, sizeof(txqp)); 4163 txqp.cw_min = wmep->wmep_logcwmin; 4164 txqp.cw_max = wmep->wmep_logcwmax; 4165 txqp.txop = wmep->wmep_txopLimit; 4166 txqp.aifs = wmep->wmep_aifsn; 4167 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 4168 if (error != 0) 4169 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 4170 __func__, ac, error); 4171 } 4172 bss_changed = BSS_CHANGED_QOS; 4173 if (!planned) 4174 lkpi_bss_info_change(hw, vif, bss_changed); 4175 4176 return (bss_changed); 4177 } 4178 #endif 4179 4180 static int 4181 lkpi_ic_wme_update(struct ieee80211com *ic) 4182 { 4183 #ifdef LKPI_80211_WME 4184 struct ieee80211vap *vap; 4185 struct lkpi_hw *lhw; 4186 struct ieee80211_hw *hw; 4187 4188 IMPROVE("Use the per-VAP callback in net80211."); 4189 vap = TAILQ_FIRST(&ic->ic_vaps); 4190 if (vap == NULL) 4191 return (0); 4192 4193 lhw = ic->ic_softc; 4194 hw = LHW_TO_HW(lhw); 4195 4196 wiphy_lock(hw->wiphy); 4197 lkpi_wme_update(lhw, vap, false); 4198 wiphy_unlock(hw->wiphy); 4199 #endif 4200 return (0); /* unused */ 4201 } 4202 4203 static void 4204 lkpi_iv_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, 4205 int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf) 4206 { 4207 struct lkpi_hw *lhw; 4208 struct ieee80211_hw *hw; 4209 struct lkpi_vif *lvif; 4210 struct ieee80211_vif *vif; 4211 enum ieee80211_bss_changed bss_changed; 4212 4213 lvif = VAP_TO_LVIF(ni->ni_vap); 4214 vif = LVIF_TO_VIF(lvif); 4215 4216 lvif->iv_recv_mgmt(ni, m0, subtype, rxs, rssi, nf); 4217 4218 switch (subtype) { 4219 case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 4220 break; 4221 case IEEE80211_FC0_SUBTYPE_BEACON: 4222 /* 4223 * Only count beacons when assoc. SCAN has its own logging. 4224 * This is for connection/beacon loss/session protection almost 4225 * over debugging when trying to get into a stable RUN state. 4226 */ 4227 if (vif->cfg.assoc) 4228 lvif->beacons++; 4229 break; 4230 default: 4231 return; 4232 } 4233 4234 lhw = ni->ni_ic->ic_softc; 4235 hw = LHW_TO_HW(lhw); 4236 4237 /* 4238 * If this direct call to mo_bss_info_changed will not work due to 4239 * locking, see if queue_work() is fast enough. 4240 */ 4241 bss_changed = lkpi_update_dtim_tsf(vif, ni, ni->ni_vap, __func__, __LINE__); 4242 lkpi_bss_info_change(hw, vif, bss_changed); 4243 } 4244 4245 /* 4246 * Change link-layer address on the vif (if the vap is not started/"UP"). 4247 * This can happen if a user changes 'ether' using ifconfig. 4248 * The code is based on net80211/ieee80211_freebsd.c::wlan_iflladdr() but 4249 * we do use a per-[l]vif event handler to be sure we exist as we 4250 * cannot assume that from every vap derives a vif and we have a hard 4251 * time checking based on net80211 information. 4252 * Should this ever become a real problem we could add a callback function 4253 * to wlan_iflladdr() to be set optionally but that would be for a 4254 * single-consumer (or needs a list) -- was just too complicated for an 4255 * otherwise perfect mechanism FreeBSD already provides. 4256 */ 4257 static void 4258 lkpi_vif_iflladdr(void *arg, struct ifnet *ifp) 4259 { 4260 struct epoch_tracker et; 4261 struct ieee80211_vif *vif; 4262 4263 NET_EPOCH_ENTER(et); 4264 /* NB: identify vap's by if_transmit; left as an extra check. */ 4265 if (if_gettransmitfn(ifp) != ieee80211_vap_transmit || 4266 (if_getflags(ifp) & IFF_UP) != 0) { 4267 NET_EPOCH_EXIT(et); 4268 return; 4269 } 4270 4271 vif = arg; 4272 IEEE80211_ADDR_COPY(vif->bss_conf.addr, if_getlladdr(ifp)); 4273 NET_EPOCH_EXIT(et); 4274 } 4275 4276 static struct ieee80211vap * 4277 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 4278 int unit, enum ieee80211_opmode opmode, int flags, 4279 const uint8_t bssid[IEEE80211_ADDR_LEN], 4280 const uint8_t mac[IEEE80211_ADDR_LEN]) 4281 { 4282 struct lkpi_hw *lhw; 4283 struct ieee80211_hw *hw; 4284 struct lkpi_vif *lvif; 4285 struct ieee80211vap *vap; 4286 struct ieee80211_vif *vif; 4287 struct ieee80211_tx_queue_params txqp; 4288 enum ieee80211_bss_changed bss_changed; 4289 enum nl80211_band band; 4290 struct sysctl_oid *node; 4291 size_t len; 4292 int error, i; 4293 uint16_t ac; 4294 4295 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 4296 return (NULL); 4297 4298 lhw = ic->ic_softc; 4299 hw = LHW_TO_HW(lhw); 4300 4301 len = sizeof(*lvif); 4302 len += hw->vif_data_size; /* vif->drv_priv */ 4303 4304 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 4305 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 4306 TASK_INIT(&lvif->sw_scan_task, 0, lkpi_sw_scan_task, lvif); 4307 INIT_LIST_HEAD(&lvif->lsta_list); 4308 lvif->lvif_bss = NULL; 4309 refcount_init(&lvif->nt_unlocked, 0); 4310 lvif->lvif_bss_synched = false; 4311 vap = LVIF_TO_VAP(lvif); 4312 vif = LVIF_TO_VIF(lvif); 4313 4314 /* 4315 * Setup legacy br_mask here. We will call (*set_bitrate_mask) 4316 * elsewhere to announce it to the driver but it is a static 4317 * setup. 4318 * Also setup basic_rates with just the mandatory rates for the 4319 * current band (if avail). 4320 */ 4321 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4322 struct ieee80211_supported_band *supband; 4323 uint32_t rate_mandatory;; 4324 4325 supband = hw->wiphy->bands[band]; 4326 if (supband == NULL || supband->n_bitrates == 0) 4327 continue; 4328 4329 /* Per-band legacy br_mask. */ 4330 lvif->br_mask.control[band].legacy = (1 << supband->n_bitrates) - 1; 4331 4332 /* basic_rates for the current band. */ 4333 if (hw->conf.chandef.chan == NULL || 4334 hw->conf.chandef.chan->band != band) 4335 continue; 4336 4337 switch (band) { 4338 case NL80211_BAND_2GHZ: 4339 /* We have to assume 11g support here. */ 4340 rate_mandatory = IEEE80211_RATE_MANDATORY_G | 4341 IEEE80211_RATE_MANDATORY_B; 4342 break; 4343 case NL80211_BAND_5GHZ: 4344 rate_mandatory = IEEE80211_RATE_MANDATORY_A; 4345 break; 4346 default: 4347 continue; 4348 } 4349 4350 for (i = 0; i < supband->n_bitrates; i++) { 4351 if ((supband->bitrates[i].flags & rate_mandatory) != 0) 4352 vif->bss_conf.basic_rates |= BIT(i); 4353 } 4354 } 4355 4356 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 4357 vif->p2p = false; 4358 vif->probe_req_reg = false; 4359 vif->type = lkpi_opmode_to_vif_type(opmode); 4360 lvif->wdev.wiphy = hw->wiphy; 4361 lvif->wdev.iftype = vif->type; 4362 wiphy_lock(hw->wiphy); 4363 list_add_rcu(&lvif->wdev.list, &hw->wiphy->wdev_list); 4364 wiphy_unlock(hw->wiphy); 4365 memcpy(lvif->wdev.address, mac, IEEE80211_ADDR_LEN); 4366 #if 0 4367 /* Need to fill in other fields as well. */ 4368 struct net_device *netdev; /* When do we create this? */ 4369 uint32_t radio_mask; 4370 #endif 4371 IMPROVE("wdev"); 4372 4373 /* Create a chanctx to be used later. */ 4374 IMPROVE("lkpi_alloc_lchanctx reserved as many as can be"); 4375 (void) lkpi_find_lchanctx_reserved(hw, lvif); 4376 4377 /* XXX-BZ hardcoded for now! */ 4378 #if 1 4379 RCU_INIT_POINTER(vif->bss_conf.chanctx_conf, NULL); 4380 vif->bss_conf.vif = vif; 4381 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 4382 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 4383 lvif->lvif_ifllevent = EVENTHANDLER_REGISTER(iflladdr_event, 4384 lkpi_vif_iflladdr, vif, EVENTHANDLER_PRI_ANY); 4385 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 4386 vif->bss_conf.chanreq.oper.chan = lhw->dflt_chandef.chan; 4387 vif->bss_conf.chanreq.oper.width = NL80211_CHAN_WIDTH_20_NOHT; 4388 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 4389 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 4390 vif->bss_conf.qos = false; 4391 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 4392 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 4393 IEEE80211_ADDR_COPY(vif->cfg.ap_addr, ieee80211broadcastaddr); 4394 vif->cfg.aid = 0; 4395 vif->cfg.assoc = false; 4396 vif->cfg.idle = true; 4397 vif->cfg.ps = false; 4398 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 4399 /* 4400 * We need to initialize it to something as the bss_info_changed call 4401 * will try to copy from it in iwlwifi and NULL is a panic. 4402 * We will set the proper one in scan_to_auth() before being assoc. 4403 */ 4404 vif->bss_conf.bssid = ieee80211broadcastaddr; 4405 #endif 4406 #if 0 4407 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 4408 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 4409 vif->bss_conf.beacon_int = ic->ic_bintval; 4410 /* iwlwifi bug. */ 4411 if (vif->bss_conf.beacon_int < 16) 4412 vif->bss_conf.beacon_int = 16; 4413 #endif 4414 4415 /* Link Config */ 4416 vif->link_conf[0] = &vif->bss_conf; 4417 for (i = 0; i < nitems(vif->link_conf); i++) { 4418 IMPROVE("more than 1 link one day"); 4419 } 4420 4421 /* Setup queue defaults; driver may override in (*add_interface). */ 4422 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 4423 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 4424 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 4425 else if (hw->queues >= IEEE80211_NUM_ACS) 4426 vif->hw_queue[i] = i; 4427 else 4428 vif->hw_queue[i] = 0; 4429 4430 /* Initialize the queue to running. Stopped? */ 4431 lvif->hw_queue_stopped[i] = false; 4432 } 4433 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 4434 4435 IMPROVE(); 4436 4437 wiphy_lock(hw->wiphy); 4438 error = lkpi_80211_mo_start(hw); 4439 if (error != 0) { 4440 wiphy_unlock(hw->wiphy); 4441 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 4442 mtx_destroy(&lvif->mtx); 4443 free(lvif, M_80211_VAP); 4444 return (NULL); 4445 } 4446 4447 error = lkpi_80211_mo_add_interface(hw, vif); 4448 if (error != 0) { 4449 IMPROVE(); /* XXX-BZ mo_stop()? */ 4450 wiphy_unlock(hw->wiphy); 4451 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 4452 mtx_destroy(&lvif->mtx); 4453 free(lvif, M_80211_VAP); 4454 return (NULL); 4455 } 4456 wiphy_unlock(hw->wiphy); 4457 4458 LKPI_80211_LHW_LVIF_LOCK(lhw); 4459 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 4460 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4461 4462 /* Set bss_info. */ 4463 bss_changed = 0; 4464 lkpi_bss_info_change(hw, vif, bss_changed); 4465 4466 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 4467 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 4468 wiphy_lock(hw->wiphy); 4469 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4470 4471 bzero(&txqp, sizeof(txqp)); 4472 txqp.cw_min = 15; 4473 txqp.cw_max = 1023; 4474 txqp.txop = 0; 4475 txqp.aifs = 2; 4476 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 4477 if (error != 0) 4478 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 4479 __func__, ac, error); 4480 } 4481 bss_changed = BSS_CHANGED_QOS; 4482 lkpi_bss_info_change(hw, vif, bss_changed); 4483 4484 /* Force MC init. */ 4485 lkpi_update_mcast_filter_locked(ic); 4486 4487 wiphy_unlock(hw->wiphy); 4488 4489 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 4490 4491 /* Now we have a valid vap->iv_ifp. Any checksum offloading goes below. */ 4492 4493 IMPROVE(); 4494 4495 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 4496 lvif->iv_newstate = vap->iv_newstate; 4497 vap->iv_newstate = lkpi_iv_newstate; 4498 lvif->iv_update_bss = vap->iv_update_bss; 4499 vap->iv_update_bss = lkpi_iv_update_bss; 4500 lvif->iv_recv_mgmt = vap->iv_recv_mgmt; 4501 vap->iv_recv_mgmt = lkpi_iv_sta_recv_mgmt; 4502 4503 #ifdef LKPI_80211_HW_CRYPTO 4504 /* Key management. */ 4505 if (lkpi_hwcrypto && lhw->ops->set_key != NULL) { 4506 vap->iv_key_set = lkpi_iv_key_set; 4507 vap->iv_key_delete = lkpi_iv_key_delete; 4508 vap->iv_key_update_begin = lkpi_iv_key_update_begin; 4509 vap->iv_key_update_end = lkpi_iv_key_update_end; 4510 } 4511 #endif 4512 4513 #ifdef LKPI_80211_HT 4514 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 4515 #endif 4516 4517 ieee80211_ratectl_init(vap); 4518 4519 /* Complete setup. */ 4520 ieee80211_vap_attach(vap, ieee80211_media_change, 4521 ieee80211_media_status, mac); 4522 4523 #ifdef LKPI_80211_HT 4524 /* 4525 * Modern chipset/fw/drv will do A-MPDU in drv/fw and fail 4526 * to do so if they cannot do the crypto too. 4527 */ 4528 if (!lkpi_hwcrypto && IEEE80211_CONF_AMPDU_OFFLOAD(ic)) 4529 vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX; 4530 #endif 4531 4532 if (hw->max_listen_interval == 0) 4533 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 4534 hw->conf.listen_interval = hw->max_listen_interval; 4535 4536 wiphy_lock(hw->wiphy); 4537 /* XXX-BZ do we need to be able to update these? */ 4538 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 4539 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 4540 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 4541 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 4542 wiphy_unlock(hw->wiphy); 4543 /* any others? */ 4544 4545 /* Add per-VIF/VAP sysctls. */ 4546 sysctl_ctx_init(&lvif->sysctl_ctx); 4547 4548 node = SYSCTL_ADD_NODE(&lvif->sysctl_ctx, 4549 SYSCTL_CHILDREN(&sysctl___compat_linuxkpi_80211), 4550 OID_AUTO, if_name(vap->iv_ifp), 4551 CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE, NULL, "VIF Information"); 4552 4553 SYSCTL_ADD_PROC(&lvif->sysctl_ctx, 4554 SYSCTL_CHILDREN(node), OID_AUTO, "dump_stas", 4555 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, lvif, 0, 4556 lkpi_80211_dump_stas, "A", "Dump sta statistics of this vif"); 4557 SYSCTL_ADD_PROC(&lvif->sysctl_ctx, 4558 SYSCTL_CHILDREN(node), OID_AUTO, "dump_stas_queues", 4559 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE | CTLFLAG_SKIP, lvif, 0, 4560 lkpi_80211_dump_sta_queues, "A", 4561 "Dump queue statistics for any sta of this vif"); 4562 4563 IMPROVE(); 4564 4565 return (vap); 4566 } 4567 4568 void 4569 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 4570 { 4571 4572 wiphy_unregister(hw->wiphy); 4573 linuxkpi_ieee80211_ifdetach(hw); 4574 4575 IMPROVE(); 4576 } 4577 4578 void 4579 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 4580 { 4581 4582 TODO(); 4583 } 4584 4585 static void 4586 lkpi_ic_vap_delete(struct ieee80211vap *vap) 4587 { 4588 struct ieee80211com *ic; 4589 struct lkpi_hw *lhw; 4590 struct ieee80211_hw *hw; 4591 struct lkpi_vif *lvif; 4592 struct ieee80211_vif *vif; 4593 4594 lvif = VAP_TO_LVIF(vap); 4595 vif = LVIF_TO_VIF(lvif); 4596 ic = vap->iv_ic; 4597 lhw = ic->ic_softc; 4598 hw = LHW_TO_HW(lhw); 4599 4600 EVENTHANDLER_DEREGISTER(iflladdr_event, lvif->lvif_ifllevent); 4601 4602 /* Clear up per-VIF/VAP sysctls. */ 4603 sysctl_ctx_free(&lvif->sysctl_ctx); 4604 4605 ieee80211_draintask(ic, &lvif->sw_scan_task); 4606 4607 LKPI_80211_LHW_LVIF_LOCK(lhw); 4608 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 4609 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4610 4611 wiphy_lock(hw->wiphy); 4612 list_del_rcu(&lvif->wdev.list); 4613 wiphy_unlock(hw->wiphy); 4614 4615 ieee80211_ratectl_deinit(vap); 4616 ieee80211_vap_detach(vap); 4617 4618 IMPROVE("clear up other bits in this state"); 4619 4620 lkpi_80211_mo_remove_interface(hw, vif); 4621 4622 /* Single VAP, so we can do this here. */ 4623 lkpi_80211_mo_stop(hw, false); /* XXX SUSPEND */ 4624 4625 mtx_destroy(&lvif->mtx); 4626 free(lvif, M_80211_VAP); 4627 } 4628 4629 static void 4630 lkpi_ic_update_mcast(struct ieee80211com *ic) 4631 { 4632 struct ieee80211vap *vap; 4633 struct lkpi_hw *lhw; 4634 4635 lhw = ic->ic_softc; 4636 4637 LKPI_80211_LHW_MC_LOCK(lhw); 4638 /* Cleanup anything on the current list. */ 4639 lkpi_cleanup_mcast_list_locked(lhw); 4640 4641 /* Build up the new list (or allmulti). */ 4642 if (ic->ic_allmulti == 0) { 4643 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 4644 if_foreach_llmaddr(vap->iv_ifp, 4645 lkpi_ic_update_mcast_copy, &lhw->mc_list); 4646 lhw->mc_all_multi = false; 4647 } else { 4648 lhw->mc_all_multi = true; 4649 } 4650 LKPI_80211_LHW_MC_UNLOCK(lhw); 4651 4652 lkpi_update_mcast_filter(ic); 4653 TRACEOK(); 4654 } 4655 4656 static void 4657 lkpi_ic_update_promisc(struct ieee80211com *ic) 4658 { 4659 4660 UNIMPLEMENTED; 4661 } 4662 4663 static void 4664 lkpi_ic_update_chw(struct ieee80211com *ic) 4665 { 4666 4667 UNIMPLEMENTED; 4668 } 4669 4670 /* Start / stop device. */ 4671 static void 4672 lkpi_ic_parent(struct ieee80211com *ic) 4673 { 4674 struct lkpi_hw *lhw; 4675 struct ieee80211_hw *hw; 4676 #ifdef HW_START_STOP 4677 int error; 4678 #endif 4679 bool start_all; 4680 4681 IMPROVE(); 4682 4683 lhw = ic->ic_softc; 4684 hw = LHW_TO_HW(lhw); 4685 start_all = false; 4686 4687 /* IEEE80211_UNLOCK(ic); */ 4688 wiphy_lock(hw->wiphy); 4689 if (ic->ic_nrunning > 0) { 4690 #ifdef HW_START_STOP 4691 error = lkpi_80211_mo_start(hw); 4692 if (error == 0) 4693 #endif 4694 start_all = true; 4695 } else { 4696 #ifdef HW_START_STOP 4697 lkpi_80211_mo_stop(hw, false); /* XXX SUSPEND */ 4698 #endif 4699 } 4700 wiphy_unlock(hw->wiphy); 4701 /* IEEE80211_LOCK(ic); */ 4702 4703 if (start_all) 4704 ieee80211_start_all(ic); 4705 } 4706 4707 bool 4708 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 4709 size_t ie_ids_len) 4710 { 4711 int i; 4712 4713 for (i = 0; i < ie_ids_len; i++) { 4714 if (ie == *ie_ids) 4715 return (true); 4716 } 4717 4718 return (false); 4719 } 4720 4721 /* Return true if skipped; false if error. */ 4722 bool 4723 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 4724 { 4725 size_t x; 4726 uint8_t l; 4727 4728 x = *xp; 4729 4730 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 4731 __func__, x, ies_len, ies)); 4732 l = ies[x + 1]; 4733 x += 2 + l; 4734 4735 if (x > ies_len) 4736 return (false); 4737 4738 *xp = x; 4739 return (true); 4740 } 4741 4742 static uint8_t * 4743 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 4744 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 4745 { 4746 struct ieee80211_supported_band *supband; 4747 struct linuxkpi_ieee80211_channel *channels; 4748 struct ieee80211com *ic; 4749 const struct ieee80211_channel *chan; 4750 const struct ieee80211_rateset *rs; 4751 uint8_t *pb; 4752 int band, i; 4753 4754 ic = vap->iv_ic; 4755 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4756 if ((band_mask & (1 << band)) == 0) 4757 continue; 4758 4759 supband = hw->wiphy->bands[band]; 4760 /* 4761 * This should not happen; 4762 * band_mask is a bitmask of valid bands to scan on. 4763 */ 4764 if (supband == NULL || supband->n_channels == 0) 4765 continue; 4766 4767 /* Find a first channel to get the mode and rates from. */ 4768 channels = supband->channels; 4769 chan = NULL; 4770 for (i = 0; i < supband->n_channels; i++) { 4771 uint32_t flags; 4772 4773 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4774 continue; 4775 4776 flags = 0; 4777 switch (band) { 4778 case NL80211_BAND_2GHZ: 4779 flags |= IEEE80211_CHAN_G; 4780 break; 4781 case NL80211_BAND_5GHZ: 4782 flags |= IEEE80211_CHAN_A; 4783 break; 4784 default: 4785 panic("%s:%d: unupported band %d\n", 4786 __func__, __LINE__, band); 4787 } 4788 4789 chan = ieee80211_find_channel(ic, 4790 channels[i].center_freq, flags); 4791 if (chan != NULL) 4792 break; 4793 } 4794 4795 /* This really should not happen. */ 4796 if (chan == NULL) 4797 continue; 4798 4799 pb = p; 4800 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 4801 p = ieee80211_add_rates(p, rs); 4802 p = ieee80211_add_xrates(p, rs); 4803 4804 #if defined(LKPI_80211_HT) 4805 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 4806 struct ieee80211_channel *c; 4807 4808 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 4809 vap->iv_flags_ht); 4810 p = ieee80211_add_htcap_ch(p, vap, c); 4811 } 4812 #endif 4813 #if defined(LKPI_80211_VHT) 4814 if (band == NL80211_BAND_5GHZ && 4815 (vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 4816 struct ieee80211_channel *c; 4817 4818 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 4819 vap->iv_flags_ht); 4820 c = ieee80211_vht_adjust_channel(ic, c, 4821 vap->iv_vht_flags); 4822 p = ieee80211_add_vhtcap_ch(p, vap, c); 4823 } 4824 #endif 4825 4826 scan_ies->ies[band] = pb; 4827 scan_ies->len[band] = p - pb; 4828 } 4829 4830 /* Add common_ies */ 4831 pb = p; 4832 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 4833 vap->iv_wpa_ie != NULL) { 4834 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 4835 p += 2 + vap->iv_wpa_ie[1]; 4836 } 4837 if (vap->iv_appie_probereq != NULL) { 4838 memcpy(p, vap->iv_appie_probereq->ie_data, 4839 vap->iv_appie_probereq->ie_len); 4840 p += vap->iv_appie_probereq->ie_len; 4841 } 4842 scan_ies->common_ies = pb; 4843 scan_ies->common_ie_len = p - pb; 4844 4845 return (p); 4846 } 4847 4848 static void 4849 lkpi_enable_hw_scan(struct lkpi_hw *lhw) 4850 { 4851 4852 if (lhw->ops->hw_scan) { 4853 /* 4854 * Advertise full-offload scanning. 4855 * 4856 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4857 * we essentially disable hw_scan for all drivers not setting 4858 * the flag. 4859 */ 4860 lhw->ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4861 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4862 } 4863 } 4864 4865 #ifndef LKPI_80211_USE_SCANLIST 4866 static const uint32_t chan_pri[] = { 4867 5180, 5500, 5745, 4868 5260, 5580, 5660, 5825, 4869 5220, 5300, 5540, 5620, 5700, 5785, 5865, 4870 2437, 2412, 2422, 2462, 2472, 2432, 2452 4871 }; 4872 4873 static int 4874 lkpi_scan_chan_list_idx(const struct linuxkpi_ieee80211_channel *lc) 4875 { 4876 int i; 4877 4878 for (i = 0; i < nitems(chan_pri); i++) { 4879 if (lc->center_freq == chan_pri[i]) 4880 return (i); 4881 } 4882 4883 return (-1); 4884 } 4885 4886 static int 4887 lkpi_scan_chan_list_comp(const struct linuxkpi_ieee80211_channel *lc1, 4888 const struct linuxkpi_ieee80211_channel *lc2) 4889 { 4890 int idx1, idx2; 4891 4892 /* Find index in list. */ 4893 idx1 = lkpi_scan_chan_list_idx(lc1); 4894 idx2 = lkpi_scan_chan_list_idx(lc2); 4895 4896 if (idx1 == -1 && idx2 != -1) 4897 return (1); 4898 if (idx1 != -1 && idx2 == -1) 4899 return (-1); 4900 4901 /* Neither on the list, use center_freq. */ 4902 if (idx1 == -1 && idx2 == -1) 4903 return (lc1->center_freq - lc2->center_freq); 4904 4905 /* Whichever is first in the list. */ 4906 return (idx1 - idx2); 4907 } 4908 4909 static void 4910 lkpi_scan_chan_list_resort(struct linuxkpi_ieee80211_channel **cpp, size_t nchan) 4911 { 4912 struct linuxkpi_ieee80211_channel *lc, *nc; 4913 size_t i, j; 4914 int rc; 4915 4916 for (i = (nchan - 1); i > 0; i--) { 4917 for (j = i; j > 0 ; j--) { 4918 lc = *(cpp + j); 4919 nc = *(cpp + j - 1); 4920 rc = lkpi_scan_chan_list_comp(lc, nc); 4921 if (rc < 0) { 4922 *(cpp + j) = nc; 4923 *(cpp + j - 1) = lc; 4924 } 4925 } 4926 } 4927 } 4928 4929 static bool 4930 lkpi_scan_chan(struct linuxkpi_ieee80211_channel *c, 4931 struct ieee80211com *ic, bool log) 4932 { 4933 4934 if ((c->flags & IEEE80211_CHAN_DISABLED) != 0) { 4935 if (log) 4936 TRACE_SCAN(ic, "Skipping disabled chan " 4937 "on band %s [%#x/%u/%#x]", 4938 lkpi_nl80211_band_name(c->band), c->hw_value, 4939 c->center_freq, c->flags); 4940 return (false); 4941 } 4942 if (isclr(ic->ic_chan_active, ieee80211_mhz2ieee(c->center_freq, 4943 lkpi_nl80211_band_to_net80211_band(c->band)))) { 4944 if (log) 4945 TRACE_SCAN(ic, "Skipping !active chan " 4946 "on band %s [%#x/%u/%#x]", 4947 lkpi_nl80211_band_name(c->band), c->hw_value, 4948 c->center_freq, c->flags); 4949 return (false); 4950 } 4951 return (true); 4952 } 4953 #endif 4954 4955 static void 4956 lkpi_ic_scan_start(struct ieee80211com *ic) 4957 { 4958 struct lkpi_hw *lhw; 4959 struct ieee80211_hw *hw; 4960 struct lkpi_vif *lvif; 4961 struct ieee80211_vif *vif; 4962 struct ieee80211_scan_state *ss; 4963 struct ieee80211vap *vap; 4964 int error; 4965 bool is_hw_scan; 4966 4967 lhw = ic->ic_softc; 4968 ss = ic->ic_scan; 4969 vap = ss->ss_vap; 4970 TRACE_SCAN(ic, "scan_flags %b", lhw->scan_flags, LKPI_LHW_SCAN_BITS); 4971 4972 LKPI_80211_LHW_SCAN_LOCK(lhw); 4973 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 4974 /* A scan is still running. */ 4975 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4976 TRACE_SCAN(ic, "Trying to start new scan while still running; " 4977 "cancelling new net80211 scan; scan_flags %b", 4978 lhw->scan_flags, LKPI_LHW_SCAN_BITS); 4979 ieee80211_cancel_scan(vap); 4980 return; 4981 } 4982 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 4983 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4984 4985 #if 0 4986 if (vap->iv_state != IEEE80211_S_SCAN) { 4987 TODO("We need to be able to scan if not in S_SCAN"); 4988 TRACE_SCAN(ic, "scan_flags %b iv_state %d", 4989 lhw->scan_flags, LKPI_LHW_SCAN_BITS, vap->iv_state); 4990 ieee80211_cancel_scan(vap); 4991 return; 4992 } 4993 #endif 4994 4995 hw = LHW_TO_HW(lhw); 4996 if (!is_hw_scan) { 4997 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 4998 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 4999 5000 lvif = VAP_TO_LVIF(vap); 5001 vif = LVIF_TO_VIF(lvif); 5002 5003 if (vap->iv_state == IEEE80211_S_SCAN) { 5004 wiphy_lock(hw->wiphy); 5005 lkpi_hw_conf_idle(hw, false); 5006 wiphy_unlock(hw->wiphy); 5007 } 5008 5009 LKPI_80211_LHW_SCAN_LOCK(lhw); 5010 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 5011 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5012 5013 lkpi_update_mcast_filter(ic); 5014 5015 TRACE_SCAN(vap->iv_ic, "Starting SW_SCAN: scan_flags %b", 5016 lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5017 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 5018 /* net80211::scan_start() handled PS for us. */ 5019 IMPROVE(); 5020 /* XXX Also means it is too late to flush queues? 5021 * need to check iv_sta_ps or overload? */ 5022 /* XXX want to adjust ss end time/ maxdwell? */ 5023 5024 } else { 5025 struct ieee80211_scan_request *hw_req; 5026 struct linuxkpi_ieee80211_channel *lc, **cpp; 5027 struct cfg80211_ssid *ssids; 5028 struct cfg80211_scan_6ghz_params *s6gp; 5029 size_t chan_len, nchan, ssids_len, s6ghzlen; 5030 int band, i, ssid_count, common_ie_len; 5031 #ifndef LKPI_80211_USE_SCANLIST 5032 int n; 5033 #endif 5034 uint32_t band_mask; 5035 uint8_t *ie, *ieend; 5036 bool running; 5037 5038 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 5039 ssids_len = ssid_count * sizeof(*ssids); 5040 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 5041 5042 band_mask = 0; 5043 nchan = 0; 5044 if (ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 5045 #ifdef LKPI_80211_USE_SCANLIST 5046 /* Avoid net80211 scan lists until it has proper scan offload support. */ 5047 for (i = ss->ss_next; i < ss->ss_last; i++) { 5048 nchan++; 5049 band = lkpi_net80211_chan_to_nl80211_band( 5050 ss->ss_chans[ss->ss_next + i]); 5051 band_mask |= (1 << band); 5052 } 5053 #else 5054 /* Instead we scan for all channels all the time. */ 5055 for (band = 0; band < NUM_NL80211_BANDS; band++) { 5056 switch (band) { 5057 case NL80211_BAND_2GHZ: 5058 case NL80211_BAND_5GHZ: 5059 break; 5060 default: 5061 continue; 5062 } 5063 if (hw->wiphy->bands[band] != NULL) { 5064 struct linuxkpi_ieee80211_channel *channels; 5065 int n; 5066 5067 band_mask |= (1 << band); 5068 5069 channels = hw->wiphy->bands[band]->channels; 5070 n = hw->wiphy->bands[band]->n_channels; 5071 for (i = 0; i < n; i++) { 5072 if (lkpi_scan_chan(&channels[i], ic, true)) 5073 nchan++; 5074 } 5075 } 5076 } 5077 #endif 5078 } else { 5079 IMPROVE("individual band scans not yet supported, only scanning first band"); 5080 /* In theory net80211 should drive this. */ 5081 /* Probably we need to add local logic for now; 5082 * need to deal with scan_complete 5083 * and cancel_scan and keep local state. 5084 * Also cut the nchan down above. 5085 */ 5086 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 5087 } 5088 5089 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 5090 5091 common_ie_len = 0; 5092 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 5093 vap->iv_wpa_ie != NULL) 5094 common_ie_len += vap->iv_wpa_ie[1]; 5095 if (vap->iv_appie_probereq != NULL) 5096 common_ie_len += vap->iv_appie_probereq->ie_len; 5097 5098 /* We would love to check this at an earlier stage... */ 5099 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 5100 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 5101 "wiphy->max_scan_ie_len %d\n", __func__, 5102 common_ie_len, hw->wiphy->max_scan_ie_len); 5103 } 5104 5105 lvif = VAP_TO_LVIF(vap); 5106 5107 hw_req = malloc(sizeof(*hw_req) + ssids_len + 5108 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 5109 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 5110 5111 hw_req->req.flags = 0; /* XXX ??? */ 5112 hw_req->req.wdev = &lvif->wdev; 5113 hw_req->req.wiphy = hw->wiphy; 5114 hw_req->req.no_cck = false; /* XXX */ 5115 5116 /* 5117 * In general setting duration[_mandatory] seems to pessimise 5118 * default scanning behaviour. We only use it for BGSCANnig 5119 * to keep the dwell times small. 5120 * Setting duration_mandatory makes this the maximum dwell 5121 * time (otherwise may be shorter). Duration is in TU. 5122 */ 5123 if ((ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) != 0) { 5124 unsigned long dwell; 5125 5126 if ((ic->ic_caps & IEEE80211_C_BGSCAN) == 0 || 5127 (vap->iv_flags & IEEE80211_F_BGSCAN) == 0) 5128 ic_printf(ic, "BGSCAN despite off: %b, %b, %b\n", 5129 ic->ic_flags_ext, IEEE80211_FEXT_BITS, 5130 vap->iv_flags, IEEE80211_F_BITS, 5131 ic->ic_caps, IEEE80211_C_BITS); 5132 5133 dwell = ss->ss_mindwell; 5134 if (dwell == 0) 5135 dwell = msecs_to_ticks(20); 5136 5137 hw_req->req.duration_mandatory = true; 5138 hw_req->req.duration = TICKS_2_USEC(dwell) / 1024; 5139 } 5140 5141 #ifdef __notyet__ 5142 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 5143 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 5144 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 5145 #endif 5146 eth_broadcast_addr(hw_req->req.bssid); 5147 5148 hw_req->req.n_channels = nchan; 5149 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 5150 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 5151 #ifdef LKPI_80211_USE_SCANLIST 5152 for (i = 0; i < nchan; i++) { 5153 *(cpp + i) = 5154 (struct linuxkpi_ieee80211_channel *)(lc + i); 5155 } 5156 /* Avoid net80211 scan lists until it has proper scan offload support. */ 5157 for (i = 0; i < nchan; i++) { 5158 struct ieee80211_channel *c; 5159 5160 c = ss->ss_chans[ss->ss_next + i]; 5161 lc->center_freq = c->ic_freq; /* XXX */ 5162 /* lc->flags */ 5163 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 5164 lc->max_power = c->ic_maxpower; 5165 /* lc-> ... */ 5166 lc++; 5167 } 5168 #else 5169 /* Add bands in reverse order for scanning. */ 5170 n = 0; 5171 for (band = NUM_NL80211_BANDS - 1; band >= 0; band--) { 5172 struct ieee80211_supported_band *supband; 5173 struct linuxkpi_ieee80211_channel *channels; 5174 5175 /* Band disabled for scanning? */ 5176 if ((band_mask & (1 << band)) == 0) 5177 continue; 5178 5179 /* Nothing to scan in band? */ 5180 supband = hw->wiphy->bands[band]; 5181 if (supband == NULL || supband->n_channels == 0) 5182 continue; 5183 5184 channels = supband->channels; 5185 for (i = 0; i < supband->n_channels; i++) { 5186 if (lkpi_scan_chan(&channels[i], ic, false)) 5187 *(cpp + n++) = &channels[i]; 5188 } 5189 } 5190 if (lkpi_order_scanlist) 5191 lkpi_scan_chan_list_resort(cpp, nchan); 5192 5193 if ((linuxkpi_debug_80211 & D80211_SCAN) != 0) { 5194 printf("%s:%d: %s SCAN Channel List (nchan=%zu): ", 5195 __func__, __LINE__, ic->ic_name, nchan); 5196 for (i = 0; i < nchan; i++) { 5197 struct linuxkpi_ieee80211_channel *xc; 5198 5199 xc = *(cpp + i); 5200 printf(" %d(%d)", 5201 ieee80211_mhz2ieee(xc->center_freq, 5202 lkpi_nl80211_band_to_net80211_band( 5203 xc->band)), 5204 xc->center_freq); 5205 } 5206 printf("\n"); 5207 } 5208 #endif 5209 5210 hw_req->req.n_ssids = ssid_count; 5211 if (hw_req->req.n_ssids > 0) { 5212 ssids = (struct cfg80211_ssid *)lc; 5213 hw_req->req.ssids = ssids; 5214 for (i = 0; i < ssid_count; i++) { 5215 ssids->ssid_len = ss->ss_ssid[i].len; 5216 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 5217 ss->ss_ssid[i].len); 5218 ssids++; 5219 } 5220 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 5221 } else { 5222 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 5223 } 5224 5225 /* 6GHz one day. */ 5226 hw_req->req.n_6ghz_params = 0; 5227 hw_req->req.scan_6ghz_params = NULL; 5228 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 5229 /* s6gp->... */ 5230 5231 ie = ieend = (uint8_t *)s6gp; 5232 /* Copy per-band IEs, copy common IEs */ 5233 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 5234 hw_req->req.ie = ie; 5235 hw_req->req.ie_len = ieend - ie; 5236 hw_req->req.scan_start = jiffies; 5237 5238 vif = LVIF_TO_VIF(lvif); 5239 5240 LKPI_80211_LHW_SCAN_LOCK(lhw); 5241 /* Re-check under lock. */ 5242 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 5243 if (!running) { 5244 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 5245 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 5246 5247 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 5248 lhw->hw_req = hw_req; 5249 } 5250 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5251 if (running) { 5252 free(hw_req, M_LKPI80211); 5253 TRACE_SCAN(ic, "Trying to start new scan while still " 5254 "running (2); cancelling new net80211 scan; " 5255 "scan_flags %b", 5256 lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5257 ieee80211_cancel_scan(vap); 5258 return; 5259 } 5260 5261 wiphy_lock(hw->wiphy); 5262 lkpi_update_mcast_filter_locked(ic); 5263 TRACE_SCAN(ic, "Starting HW_SCAN: scan_flags %b, " 5264 "ie_len %d, n_ssids %d, n_chan %d, common_ie_len %d [%d, %d]", 5265 lhw->scan_flags, LKPI_LHW_SCAN_BITS, hw_req->req.ie_len, 5266 hw_req->req.n_ssids, hw_req->req.n_channels, 5267 hw_req->ies.common_ie_len, 5268 hw_req->ies.len[NL80211_BAND_2GHZ], 5269 hw_req->ies.len[NL80211_BAND_5GHZ]); 5270 5271 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 5272 wiphy_unlock(hw->wiphy); 5273 if (error != 0) { 5274 bool scan_done; 5275 int e; 5276 5277 TRACE_SCAN(ic, "hw_scan failed; scan_flags %b, error %d", 5278 lhw->scan_flags, LKPI_LHW_SCAN_BITS, error); 5279 ieee80211_cancel_scan(vap); 5280 5281 /* 5282 * ieee80211_scan_completed must be called in either 5283 * case of error or none. So let the free happen there 5284 * and only there. 5285 * That would be fine in theory but in practice drivers 5286 * behave differently: 5287 * ath10k does not return hw_scan until after scan_complete 5288 * and can then still return an error. 5289 * rtw88 can return 1 or -EBUSY without scan_complete 5290 * iwlwifi can return various errors before scan starts 5291 * ... 5292 * So we cannot rely on that behaviour and have to check 5293 * and balance between both code paths. 5294 */ 5295 e = 0; 5296 scan_done = true; 5297 LKPI_80211_LHW_SCAN_LOCK(lhw); 5298 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 5299 5300 free(lhw->hw_req, M_LKPI80211); 5301 lhw->hw_req = NULL; 5302 /* 5303 * The ieee80211_cancel_scan() above runs in a 5304 * taskq and it may take ages for the previous 5305 * scan to clear; starting a new one right away 5306 * we run into the problem that the old one is 5307 * still active. 5308 */ 5309 e = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz); 5310 scan_done = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 5311 5312 /* 5313 * Now we can clear running if no one else did. 5314 */ 5315 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 5316 } 5317 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5318 lkpi_update_mcast_filter(ic); 5319 if (!scan_done) { 5320 ic_printf(ic, "ERROR: %s: timeout/error to wait " 5321 "for ieee80211_cancel_scan: %d\n", __func__, e); 5322 return; 5323 } 5324 5325 /* 5326 * XXX-SIGH magic number. 5327 * rtw88 has a magic "return 1" if offloading scan is 5328 * not possible. Fall back to sw scan in that case. 5329 */ 5330 if (error == 1) { 5331 /* 5332 * We need to put this into some defered context 5333 * the net80211 scan may not be done yet 5334 * (ic_flags & IEEE80211_F_SCAN) and we cannot 5335 * wait here; if we do scan_curchan_task always 5336 * runs after our timeout to finalize the scan. 5337 */ 5338 ieee80211_runtask(ic, &lvif->sw_scan_task); 5339 return; 5340 } 5341 5342 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 5343 __func__, error); 5344 } 5345 } 5346 } 5347 5348 static void 5349 lkpi_sw_scan_task(void *arg, int pending __unused) 5350 { 5351 struct lkpi_hw *lhw; 5352 struct lkpi_vif *lvif; 5353 struct ieee80211vap *vap; 5354 struct ieee80211_scan_state *ss; 5355 5356 lvif = arg; 5357 vap = LVIF_TO_VAP(lvif); 5358 lhw = vap->iv_ic->ic_softc; 5359 ss = vap->iv_ic->ic_scan; 5360 5361 LKPI_80211_LHW_SCAN_LOCK(lhw); 5362 /* 5363 * We will re-enable this at scan_end calling lkpi_enable_hw_scan(). 5364 * IEEE80211_FEXT_SCAN_OFFLOAD will be cleared by lkpi_ic_scan_start. 5365 */ 5366 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 5367 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5368 5369 TRACE_SCAN(vap->iv_ic, "Triggering SW_SCAN: pending %d, scan_flags %b", 5370 pending, lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5371 5372 /* 5373 * This will call ic_scan_start() and we will get into the right path 5374 * unless other scans started in between. 5375 */ 5376 ieee80211_start_scan(vap, 5377 IEEE80211_SCAN_ONCE, 5378 msecs_to_ticks(10000), /* 10000 ms (=~ 50 chan * 200 ms) */ 5379 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 5380 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 5381 vap->iv_des_nssid, vap->iv_des_ssid); 5382 } 5383 5384 static void 5385 lkpi_ic_scan_end(struct ieee80211com *ic) 5386 { 5387 struct lkpi_hw *lhw; 5388 bool is_hw_scan; 5389 5390 lhw = ic->ic_softc; 5391 TRACE_SCAN(ic, "scan_flags %b", lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5392 5393 LKPI_80211_LHW_SCAN_LOCK(lhw); 5394 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 5395 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5396 return; 5397 } 5398 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5399 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5400 5401 if (!is_hw_scan) { 5402 struct ieee80211_scan_state *ss; 5403 struct ieee80211vap *vap; 5404 struct ieee80211_hw *hw; 5405 struct lkpi_vif *lvif; 5406 struct ieee80211_vif *vif; 5407 5408 ss = ic->ic_scan; 5409 vap = ss->ss_vap; 5410 hw = LHW_TO_HW(lhw); 5411 lvif = VAP_TO_LVIF(vap); 5412 vif = LVIF_TO_VIF(lvif); 5413 5414 lkpi_80211_mo_sw_scan_complete(hw, vif); 5415 5416 /* Send PS to stop buffering if n80211 does not for us? */ 5417 5418 if (vap->iv_state == IEEE80211_S_SCAN) { 5419 wiphy_lock(hw->wiphy); 5420 lkpi_hw_conf_idle(hw, true); 5421 wiphy_unlock(hw->wiphy); 5422 } 5423 } 5424 5425 /* 5426 * In case we disabled the hw_scan in lkpi_ic_scan_start() and 5427 * switched to swscan, re-enable hw_scan if available. 5428 */ 5429 lkpi_enable_hw_scan(lhw); 5430 5431 /* Clear the scanning chandef. */ 5432 memset(&lhw->scan_chandef, 0, sizeof(lhw->scan_chandef)); 5433 5434 LKPI_80211_LHW_SCAN_LOCK(lhw); 5435 wakeup(lhw); 5436 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5437 } 5438 5439 static void 5440 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 5441 unsigned long maxdwell) 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 maxdwell %lu", 5448 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5449 ss->ss_ic->ic_curchan->ic_ieee, maxdwell); 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_curchan(ss, maxdwell); 5456 } 5457 5458 static void 5459 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 5460 { 5461 struct lkpi_hw *lhw; 5462 bool is_hw_scan; 5463 5464 lhw = ss->ss_ic->ic_softc; 5465 TRACE_SCAN(ss->ss_ic, "scan_flags %b chan %d mindwell %lu", 5466 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5467 ss->ss_ic->ic_curchan->ic_ieee, ss->ss_mindwell); 5468 5469 LKPI_80211_LHW_SCAN_LOCK(lhw); 5470 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5471 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5472 if (!is_hw_scan) 5473 lhw->ic_scan_mindwell(ss); 5474 } 5475 5476 struct lkpi_ic_set_channel_iter_arg { 5477 struct linuxkpi_ieee80211_channel *chan; 5478 struct ieee80211_chanctx_conf *chanctx_conf; 5479 }; 5480 5481 static void 5482 lkpi_ic_set_channel_chanctx_iterf(struct ieee80211_hw *hw, 5483 struct ieee80211_chanctx_conf *chanctx_conf, void *arg) 5484 { 5485 struct lkpi_ic_set_channel_iter_arg *chanctx_iter_arg; 5486 5487 chanctx_iter_arg = arg; 5488 if (chanctx_iter_arg->chanctx_conf != NULL) 5489 return; 5490 5491 if (chanctx_iter_arg->chan == chanctx_conf->def.chan) 5492 chanctx_iter_arg->chanctx_conf = chanctx_conf; 5493 } 5494 5495 static void 5496 lkpi_ic_set_channel(struct ieee80211com *ic) 5497 { 5498 struct lkpi_hw *lhw; 5499 struct ieee80211_hw *hw; 5500 struct ieee80211_channel *c; 5501 struct linuxkpi_ieee80211_channel *chan; 5502 struct ieee80211_chanctx_conf *chanctx_conf; 5503 uint32_t changed; 5504 int error; 5505 bool hw_scan, scan_running; 5506 5507 IEEE80211_UNLOCK_ASSERT(ic); 5508 5509 lhw = ic->ic_softc; 5510 5511 c = ic->ic_curchan; 5512 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 5513 ic_printf(ic, "%s: Unset channel: c %p, ignoring update\n", 5514 __func__, c); 5515 return; 5516 } 5517 5518 chan = lkpi_find_lkpi80211_chan(lhw, c); 5519 if (chan == NULL) { 5520 ic_printf(ic, "%s: No channel found for c %p(%d) chan %p\n", 5521 __func__, c, c->ic_ieee, chan); 5522 return; 5523 } 5524 5525 /* 5526 * All net80211 callers call ieee80211_radiotap_chan_change(). 5527 * That means we have nothing to do ourselves. 5528 */ 5529 5530 /* If we have a hw_scan running do not switch channels. */ 5531 LKPI_80211_LHW_SCAN_LOCK(lhw); 5532 scan_running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 5533 hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5534 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5535 if (scan_running && hw_scan) { 5536 TRACE_SCAN(ic, "scan_flags %b chan %d nothing to do.", 5537 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5538 c->ic_ieee); 5539 /* Let us hope we set tx power levels elsewhere. */ 5540 return; 5541 } 5542 5543 hw = LHW_TO_HW(lhw); 5544 wiphy_lock(hw->wiphy); 5545 if (scan_running) { 5546 struct ieee80211vap *vap; 5547 struct lkpi_vif *lvif; 5548 struct ieee80211_vif *vif; 5549 5550 /* 5551 * For now and for scanning just pick the first VIF. 5552 * net80211 will need to grow DBDC/link_id support 5553 * for us to find the vif/chanctx otherwise. 5554 */ 5555 vap = TAILQ_FIRST(&ic->ic_vaps); 5556 lvif = VAP_TO_LVIF(vap); 5557 vif = LVIF_TO_VIF(lvif); 5558 5559 /* We always set the chandef to no-HT for scanning. */ 5560 cfg80211_chandef_create(&lhw->scan_chandef, chan, 5561 NL80211_CHAN_NO_HT); 5562 #ifdef LINUXKPI_DEBUG_80211 5563 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 5564 ic_printf(ic, "%s:%d: initialized lhw->scan_chandef\n", 5565 __func__, __LINE__); 5566 #endif 5567 5568 /* 5569 * This works for as long as we do not do BGSCANs; otherwise 5570 * it'll have to be offchan work. 5571 */ 5572 chanctx_conf = lkpi_get_chanctx_conf(hw, vif); 5573 changed = lkpi_init_chanctx_conf(hw, &lhw->scan_chandef, chanctx_conf); 5574 error = lkpi_set_chanctx_conf(hw, vif, chanctx_conf, changed, true); 5575 5576 TRACE_SCAN(ic, "scan_flags %b chan %d ???, error %d", 5577 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5578 c->ic_ieee, error); 5579 5580 IMPROVE("max power for scanning; TODO in lkpi_80211_update_chandef"); 5581 5582 } else if (lhw->emulate_chanctx) { 5583 /* 5584 * We do not set the channel here for normal chanctx operation. 5585 * That's just a setup to fail. scan_to_auth will setup all the 5586 * other neccessary options for this to work. 5587 */ 5588 struct lkpi_ic_set_channel_iter_arg chanctx_iter_arg = { 5589 .chan = chan, 5590 .chanctx_conf = NULL, 5591 }; 5592 struct cfg80211_chan_def chandef; 5593 5594 lkpi_init_chandef(ic, &chandef, chan, c, false); 5595 5596 ieee80211_iter_chan_contexts_mtx(hw, 5597 lkpi_ic_set_channel_chanctx_iterf, &chanctx_iter_arg); 5598 5599 if (chanctx_iter_arg.chanctx_conf == NULL) { 5600 /* No chanctx found for this channel. */ 5601 struct ieee80211vap *vap; 5602 struct lkpi_vif *lvif; 5603 struct ieee80211_vif *vif; 5604 5605 /* 5606 * For now just pick the first VIF. 5607 * net80211 will need to grow DBDC/link_id support 5608 * for us to find the vif/chanctx otherwise. 5609 */ 5610 vap = TAILQ_FIRST(&ic->ic_vaps); 5611 lvif = VAP_TO_LVIF(vap); 5612 vif = LVIF_TO_VIF(lvif); 5613 5614 #ifdef LINUXKPI_DEBUG_80211 5615 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 5616 ic_printf(ic, "%s:%d: using on stack chandef\n", 5617 __func__, __LINE__); 5618 #endif 5619 chanctx_conf = lkpi_get_chanctx_conf(hw, vif); 5620 changed = lkpi_init_chanctx_conf(hw, &chandef, chanctx_conf); 5621 IMPROVE("update HT, VHT, bw, ..."); 5622 error = lkpi_set_chanctx_conf(hw, vif, chanctx_conf, changed, true); 5623 5624 } else { 5625 /* 5626 * We know we are on the same channel. 5627 * Do we really have to reset everything? 5628 */ 5629 IMPROVE("update HT, VHT, bw, ..."); 5630 5631 #ifdef LINUXKPI_DEBUG_80211 5632 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 5633 ic_printf(ic, "%s:%d: using on stack chandef\n", 5634 __func__, __LINE__); 5635 #endif 5636 5637 chanctx_conf = chanctx_iter_arg.chanctx_conf; 5638 changed = lkpi_init_chanctx_conf(hw, &chandef, chanctx_conf); 5639 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 5640 } 5641 } 5642 5643 /* Currently PS is hard coded off! Not sure it belongs here. */ 5644 IMPROVE("PS"); 5645 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 5646 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 5647 hw->conf.flags &= ~IEEE80211_CONF_PS; 5648 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 5649 if (error != 0 && error != EOPNOTSUPP) 5650 ic_printf(ic, "ERROR: %s: config %#0x returned " 5651 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 5652 error); 5653 } 5654 5655 wiphy_unlock(hw->wiphy); 5656 } 5657 5658 static struct ieee80211_node * 5659 lkpi_ic_node_alloc(struct ieee80211vap *vap, 5660 const uint8_t mac[IEEE80211_ADDR_LEN]) 5661 { 5662 struct ieee80211com *ic; 5663 struct lkpi_hw *lhw; 5664 struct ieee80211_node *ni; 5665 struct ieee80211_hw *hw; 5666 struct lkpi_sta *lsta; 5667 5668 ic = vap->iv_ic; 5669 lhw = ic->ic_softc; 5670 5671 /* We keep allocations de-coupled so we can deal with the two worlds. */ 5672 if (lhw->ic_node_alloc == NULL) 5673 return (NULL); 5674 5675 ni = lhw->ic_node_alloc(vap, mac); 5676 if (ni == NULL) 5677 return (NULL); 5678 5679 hw = LHW_TO_HW(lhw); 5680 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 5681 if (lsta == NULL) { 5682 if (lhw->ic_node_free != NULL) 5683 lhw->ic_node_free(ni); 5684 return (NULL); 5685 } 5686 5687 return (ni); 5688 } 5689 5690 static int 5691 lkpi_ic_node_init(struct ieee80211_node *ni) 5692 { 5693 struct ieee80211com *ic; 5694 struct lkpi_hw *lhw; 5695 int error; 5696 5697 ic = ni->ni_ic; 5698 lhw = ic->ic_softc; 5699 5700 if (lhw->ic_node_init != NULL) { 5701 error = lhw->ic_node_init(ni); 5702 if (error != 0) 5703 return (error); 5704 } 5705 5706 /* XXX-BZ Sync other state over. */ 5707 IMPROVE(); 5708 5709 return (0); 5710 } 5711 5712 static void 5713 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 5714 { 5715 struct ieee80211com *ic; 5716 struct lkpi_hw *lhw; 5717 5718 ic = ni->ni_ic; 5719 lhw = ic->ic_softc; 5720 5721 /* XXX-BZ remove from driver, ... */ 5722 IMPROVE(); 5723 5724 if (lhw->ic_node_cleanup != NULL) 5725 lhw->ic_node_cleanup(ni); 5726 } 5727 5728 static void 5729 lkpi_ic_node_free(struct ieee80211_node *ni) 5730 { 5731 struct ieee80211com *ic; 5732 struct lkpi_hw *lhw; 5733 struct lkpi_sta *lsta; 5734 5735 ic = ni->ni_ic; 5736 lhw = ic->ic_softc; 5737 lsta = ni->ni_drv_data; 5738 5739 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 5740 5741 /* 5742 * Pass in the original ni just in case of error we could check that 5743 * it is the same as lsta->ni. 5744 */ 5745 lkpi_lsta_free(lsta, ni); 5746 5747 if (lhw->ic_node_free != NULL) 5748 lhw->ic_node_free(ni); 5749 } 5750 5751 /* 5752 * lkpi_xmit() called from both the (*ic_raw_xmit) as well as the (*ic_transmit) 5753 * call path. 5754 * Unfortunately they have slightly different invariants. See 5755 * ieee80211_raw_output() and ieee80211_parent_xmitpkt(). 5756 * Both take care of the ni reference in case of error, and otherwise during 5757 * the callback after transmit. 5758 * The difference is that in case of error (*ic_raw_xmit) needs us to release 5759 * the mbuf, while (*ic_transmit) will free the mbuf itself. 5760 */ 5761 static int 5762 lkpi_xmit(struct ieee80211_node *ni, struct mbuf *m, 5763 const struct ieee80211_bpf_params *params __unused, 5764 bool freem) 5765 { 5766 struct lkpi_sta *lsta; 5767 int error; 5768 5769 lsta = ni->ni_drv_data; 5770 LKPI_80211_LSTA_TXQ_LOCK(lsta); 5771 #if 0 5772 if (!lsta->added_to_drv || !lsta->txq_ready) { 5773 #else 5774 /* 5775 * Backout this part of 886653492945f which breaks rtw88 or 5776 * in general drivers without (*sta_state)() but only the 5777 * legacy fallback to (*sta_add)(). 5778 */ 5779 if (!lsta->txq_ready) { 5780 #endif 5781 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 5782 if (freem) 5783 m_freem(m); 5784 return (ENETDOWN); 5785 } 5786 5787 /* Queue the packet and enqueue the task to handle it. */ 5788 error = mbufq_enqueue(&lsta->txq, m); 5789 if (error != 0) { 5790 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 5791 if (freem) 5792 m_freem(m); 5793 #ifdef LINUXKPI_DEBUG_80211 5794 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5795 ic_printf(ni->ni_ic, "%s: mbufq_enqueue failed: %d\n", 5796 __func__, error); 5797 #endif 5798 return (ENETDOWN); 5799 } 5800 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 5801 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 5802 5803 #ifdef LINUXKPI_DEBUG_80211 5804 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5805 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 5806 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 5807 mbufq_len(&lsta->txq)); 5808 #endif 5809 5810 return (0); 5811 } 5812 5813 static int 5814 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 5815 const struct ieee80211_bpf_params *params __unused) 5816 { 5817 return (lkpi_xmit(ni, m, NULL, true)); 5818 } 5819 5820 #ifdef LKPI_80211_HW_CRYPTO 5821 /* 5822 * This is a bit of a hack given we know we are operating on a 5823 * single frame and we know that hardware will deal with it. 5824 * But otherwise the enmic bit and the encrypt bit need to be 5825 * decoupled. 5826 */ 5827 static int 5828 lkpi_hw_crypto_prepare_tkip(struct ieee80211_key *k, 5829 struct ieee80211_key_conf *kc, struct sk_buff *skb) 5830 { 5831 struct ieee80211_hdr *hdr; 5832 uint32_t hlen, hdrlen; 5833 uint8_t *p; 5834 5835 /* 5836 * TKIP only happens on data. 5837 */ 5838 hdr = (void *)skb->data; 5839 if (!ieee80211_is_data_present(hdr->frame_control)) 5840 return (0); 5841 5842 /* 5843 * "enmic" (though we do not do that). 5844 */ 5845 /* any conditions to not apply this? */ 5846 if (skb_tailroom(skb) < ieee80211_crypto_get_key_txmic_len(k)) 5847 return (ENOBUFS); 5848 5849 p = skb_put(skb, ieee80211_crypto_get_key_txmic_len(k)); 5850 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_MIC_SPACE) != 0) 5851 goto encrypt; 5852 5853 /* 5854 * (*enmic) which we hopefully do not have to do with hw accel. 5855 * That means if we make it here we have a problem. 5856 */ 5857 TODO("(*enmic)"); 5858 return (ENXIO); 5859 5860 encrypt: 5861 /* 5862 * "encrypt" (though we do not do that). 5863 */ 5864 /* 5865 * Check if we have anything to do as requested by driver 5866 * or if we are done? 5867 */ 5868 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) == 0 && 5869 (kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV) == 0) 5870 return (0); 5871 5872 hlen = k->wk_cipher->ic_header; 5873 if (skb_headroom(skb) < hlen) 5874 return (ENOBUFS); 5875 5876 hdr = (void *)skb->data; 5877 hdrlen = ieee80211_hdrlen(hdr->frame_control); 5878 p = skb_push(skb, hlen); 5879 memmove(p, p + hlen, hdrlen); 5880 5881 /* If driver request space only we are done. */ 5882 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) != 0) 5883 return (0); 5884 5885 p += hdrlen; 5886 k->wk_cipher->ic_setiv(k, p); 5887 5888 /* If we make it hear we do sw encryption. */ 5889 TODO("sw encrypt"); 5890 return (ENXIO); 5891 } 5892 5893 static int 5894 lkpi_hw_crypto_prepare_ccmp(struct ieee80211_key *k, 5895 struct ieee80211_key_conf *kc, struct sk_buff *skb) 5896 { 5897 struct ieee80211_hdr *hdr; 5898 uint32_t hlen, hdrlen; 5899 uint8_t *p; 5900 5901 hdr = (void *)skb->data; 5902 5903 /* 5904 * Check if we have anythig to do as requested by driver 5905 * or if we are done? 5906 */ 5907 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) == 0 && 5908 (kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV) == 0 && 5909 /* MFP */ 5910 !((kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV_MGMT) != 0 && 5911 ieee80211_is_mgmt(hdr->frame_control))) 5912 return (0); 5913 5914 hlen = k->wk_cipher->ic_header; 5915 if (skb_headroom(skb) < hlen) 5916 return (ENOBUFS); 5917 5918 hdrlen = ieee80211_hdrlen(hdr->frame_control); 5919 p = skb_push(skb, hlen); 5920 memmove(p, p + hlen, hdrlen); 5921 5922 /* If driver request space only we are done. */ 5923 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) != 0) 5924 return (0); 5925 5926 p += hdrlen; 5927 k->wk_cipher->ic_setiv(k, p); 5928 5929 return (0); 5930 } 5931 5932 static int 5933 lkpi_hw_crypto_prepare(struct lkpi_sta *lsta, struct ieee80211_key *k, 5934 struct sk_buff *skb) 5935 { 5936 struct ieee80211_tx_info *info; 5937 struct ieee80211_key_conf *kc; 5938 5939 KASSERT(lsta != NULL, ("%s: lsta is NULL", __func__)); 5940 KASSERT(k != NULL, ("%s: key is NULL", __func__)); 5941 KASSERT(skb != NULL, ("%s: skb is NULL", __func__)); 5942 5943 kc = lsta->kc[k->wk_keyix]; 5944 5945 info = IEEE80211_SKB_CB(skb); 5946 info->control.hw_key = kc; 5947 5948 /* MUST NOT happen. KASSERT? */ 5949 if (kc == NULL) { 5950 ic_printf(lsta->ni->ni_ic, "%s: lsta %p k %p skb %p, " 5951 "kc is NULL on hw crypto offload\n", __func__, lsta, k, skb); 5952 return (ENXIO); 5953 } 5954 5955 switch (kc->cipher) { 5956 case WLAN_CIPHER_SUITE_TKIP: 5957 return (lkpi_hw_crypto_prepare_tkip(k, kc, skb)); 5958 case WLAN_CIPHER_SUITE_CCMP: 5959 return (lkpi_hw_crypto_prepare_ccmp(k, kc, skb)); 5960 case WLAN_CIPHER_SUITE_GCMP: 5961 return (lkpi_hw_crypto_prepare_ccmp(k, kc, skb)); 5962 case WLAN_CIPHER_SUITE_WEP40: 5963 case WLAN_CIPHER_SUITE_WEP104: 5964 case WLAN_CIPHER_SUITE_CCMP_256: 5965 case WLAN_CIPHER_SUITE_GCMP_256: 5966 case WLAN_CIPHER_SUITE_AES_CMAC: 5967 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 5968 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 5969 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 5970 default: 5971 ic_printf(lsta->ni->ni_ic, "%s: lsta %p k %p kc %p skb %p, " 5972 "unsupported cipher suite %u (%s)\n", __func__, lsta, k, kc, 5973 skb, kc->cipher, lkpi_cipher_suite_to_name(kc->cipher)); 5974 return (EOPNOTSUPP); 5975 } 5976 } 5977 5978 static uint8_t 5979 lkpi_hw_crypto_tailroom(struct lkpi_sta *lsta, struct ieee80211_key *k) 5980 { 5981 struct ieee80211_key_conf *kc; 5982 5983 kc = lsta->kc[k->wk_keyix]; 5984 if (kc == NULL) 5985 return (0); 5986 5987 IMPROVE("which other flags need tailroom?"); 5988 if (kc->flags & (IEEE80211_KEY_FLAG_PUT_MIC_SPACE)) 5989 return (32); /* Large enough to hold everything and pow2. */ 5990 5991 return (0); 5992 } 5993 #endif 5994 5995 static void 5996 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 5997 { 5998 struct ieee80211_node *ni; 5999 struct ieee80211_frame *wh; 6000 struct ieee80211_key *k; 6001 struct sk_buff *skb; 6002 struct ieee80211com *ic; 6003 struct lkpi_hw *lhw; 6004 struct ieee80211_hw *hw; 6005 struct lkpi_vif *lvif; 6006 struct ieee80211_vif *vif; 6007 struct ieee80211_channel *c; 6008 struct ieee80211_tx_control control; 6009 struct ieee80211_tx_info *info; 6010 struct ieee80211_sta *sta; 6011 struct ieee80211_hdr *hdr; 6012 struct lkpi_txq *ltxq; 6013 void *buf; 6014 ieee80211_keyix keyix; 6015 uint8_t ac, tid, tailroom; 6016 6017 M_ASSERTPKTHDR(m); 6018 #ifdef LINUXKPI_DEBUG_80211 6019 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 6020 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 6021 #endif 6022 6023 ni = lsta->ni; 6024 ieee80211_output_seqno_assign(ni, -1, m); 6025 6026 k = NULL; 6027 keyix = IEEE80211_KEYIX_NONE; 6028 wh = mtod(m, struct ieee80211_frame *); 6029 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 6030 6031 #ifdef LKPI_80211_HW_CRYPTO 6032 if (lkpi_hwcrypto) { 6033 k = ieee80211_crypto_get_txkey(ni, m); 6034 if (k != NULL && lsta->kc[k->wk_keyix] != NULL) 6035 keyix = k->wk_keyix; 6036 } 6037 #endif 6038 6039 /* Encrypt the frame if need be. */ 6040 if (keyix == IEEE80211_KEYIX_NONE) { 6041 /* Retrieve key for TX && do software encryption. */ 6042 k = ieee80211_crypto_encap(ni, m); 6043 if (k == NULL) { 6044 ieee80211_free_node(ni); 6045 m_freem(m); 6046 return; 6047 } 6048 } 6049 } 6050 6051 ic = ni->ni_ic; 6052 lhw = ic->ic_softc; 6053 hw = LHW_TO_HW(lhw); 6054 c = ni->ni_chan; 6055 6056 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 6057 struct lkpi_radiotap_tx_hdr *rtap; 6058 6059 rtap = &lhw->rtap_tx; 6060 rtap->wt_flags = 0; 6061 if (k != NULL) 6062 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 6063 if (m->m_flags & M_FRAG) 6064 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 6065 IMPROVE(); 6066 rtap->wt_rate = 0; 6067 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 6068 rtap->wt_chan_freq = htole16(c->ic_freq); 6069 rtap->wt_chan_flags = htole16(c->ic_flags); 6070 } 6071 6072 ieee80211_radiotap_tx(ni->ni_vap, m); 6073 } 6074 6075 #ifdef LKPI_80211_HW_CRYPTO 6076 if (lkpi_hwcrypto && keyix != IEEE80211_KEYIX_NONE) 6077 tailroom = lkpi_hw_crypto_tailroom(lsta, k); 6078 else 6079 #endif 6080 tailroom = 0; 6081 6082 /* 6083 * net80211 should handle hw->extra_tx_headroom. 6084 * Though for as long as we are copying we don't mind. 6085 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 6086 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 6087 */ 6088 skb = dev_alloc_skb(hw->extra_tx_headroom + tailroom + m->m_pkthdr.len); 6089 if (skb == NULL) { 6090 static uint8_t skb_alloc_failures = 0; 6091 6092 if (skb_alloc_failures++ == 0) { 6093 int tid; 6094 6095 sta = LSTA_TO_STA(lsta); 6096 ic_printf(ic, "ERROR %s: skb alloc failed %d + %d, lsta %p sta %p ni %p\n", 6097 __func__, hw->extra_tx_headroom, m->m_pkthdr.len, lsta, sta, ni); 6098 for (tid = 0; tid < nitems(sta->txq); tid++) { 6099 if (sta->txq[tid] == NULL) 6100 continue; 6101 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 6102 ic_printf(ic, " tid %d ltxq %p flags %b skb_queue_len %u\n", 6103 tid, ltxq, ltxq->flags, LKPI_TXQ_FLAGS_BITS, skb_queue_len(<xq->skbq)); 6104 } 6105 } 6106 ieee80211_free_node(ni); 6107 m_freem(m); 6108 return; 6109 } 6110 skb_reserve(skb, hw->extra_tx_headroom); 6111 6112 /* XXX-BZ we need a SKB version understanding mbuf. */ 6113 /* Save the mbuf for ieee80211_tx_complete(). */ 6114 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 6115 skb->m = m; 6116 #if 0 6117 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 6118 #else 6119 buf = skb_put(skb, m->m_pkthdr.len); 6120 m_copydata(m, 0, m->m_pkthdr.len, buf); 6121 #endif 6122 /* Save the ni. */ 6123 m->m_pkthdr.PH_loc.ptr = ni; 6124 6125 lvif = VAP_TO_LVIF(ni->ni_vap); 6126 vif = LVIF_TO_VIF(lvif); 6127 6128 hdr = (void *)skb->data; 6129 tid = linuxkpi_ieee80211_get_tid(hdr, true); 6130 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 6131 if (!ieee80211_is_data(hdr->frame_control)) { 6132 /* MGMT and CTRL frames go on TID 7/VO. */ 6133 skb->priority = 7; 6134 ac = IEEE80211_AC_VO; 6135 } else { 6136 /* Other non-QOS traffic goes to BE. */ 6137 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 6138 skb->priority = 0; 6139 ac = IEEE80211_AC_BE; 6140 } 6141 } else { 6142 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 6143 ac = ieee80211e_up_to_ac[tid & 7]; 6144 } 6145 skb_set_queue_mapping(skb, ac); 6146 6147 info = IEEE80211_SKB_CB(skb); 6148 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 6149 /* Slight delay; probably only happens on scanning so fine? */ 6150 if (c == NULL || c == IEEE80211_CHAN_ANYC) 6151 c = ic->ic_curchan; 6152 info->band = lkpi_net80211_chan_to_nl80211_band(c); 6153 info->hw_queue = vif->hw_queue[ac]; 6154 if ((m->m_flags & M_EAPOL) != 0) { 6155 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 6156 info->flags |= IEEE80211_TX_CTL_USE_MINRATE; /* mt76 */ 6157 TRACE_RATES("M_EAPOL -> TX_CTL_USE_MINRATE"); 6158 } 6159 info->control.vif = vif; 6160 6161 /* IMPROVE("MLO"); */ 6162 info->control.flags |= 6163 u32_encode_bits(IEEE80211_LINK_UNSPECIFIED, IEEE80211_TX_CTRL_MLO_LINK); 6164 6165 if (tid != IEEE80211_NONQOS_TID) { 6166 struct ieee80211_tx_ampdu *tap; 6167 6168 tap = &ni->ni_tx_ampdu[tid]; 6169 if (ieee80211_is_data_qos(hdr->frame_control) && 6170 !ieee80211_is_qos_nullfunc(hdr->frame_control) && 6171 !is_multicast_ether_addr(hdr->addr1) && 6172 IEEE80211_AMPDU_RUNNING(tap)) 6173 info->flags |= IEEE80211_TX_CTL_AMPDU; 6174 } 6175 6176 /* XXX-BZ info->control.rates for non-HW rate control and injected packets. */ 6177 #ifdef __notyet__ 6178 #ifdef LKPI_80211_HT 6179 info->control.rts_cts_rate_idx= 6180 info->control.use_rts= /* RTS */ 6181 info->control.use_cts_prot= /* RTS/CTS*/ 6182 #endif 6183 #endif 6184 6185 sta = LSTA_TO_STA(lsta); 6186 #ifdef LKPI_80211_HW_CRYPTO 6187 if (lkpi_hwcrypto && keyix != IEEE80211_KEYIX_NONE) { 6188 int error; 6189 6190 error = lkpi_hw_crypto_prepare(lsta, k, skb); 6191 if (error != 0) { 6192 /* 6193 * We only have to free the skb which will free the 6194 * mbuf and release the reference on the ni. 6195 */ 6196 dev_kfree_skb(skb); 6197 return; 6198 } 6199 /* Reset header as data might have moved. */ 6200 hdr = (void *)skb->data; 6201 } 6202 #endif 6203 6204 IMPROVE(); 6205 6206 ltxq = NULL; 6207 if (!ieee80211_is_data_present(hdr->frame_control)) { 6208 if (vif->type == NL80211_IFTYPE_STATION && 6209 lsta->added_to_drv && 6210 sta->txq[IEEE80211_NUM_TIDS] != NULL) 6211 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 6212 } else if (lsta->added_to_drv && 6213 sta->txq[skb->priority] != NULL) { 6214 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 6215 } 6216 if (ltxq == NULL) 6217 goto ops_tx; 6218 6219 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 6220 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 6221 6222 LKPI_80211_LTXQ_LOCK(ltxq); 6223 skb_queue_tail(<xq->skbq, skb); 6224 ltxq->frms_enqueued++; 6225 #ifdef LINUXKPI_DEBUG_80211 6226 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 6227 printf("%s:%d mo_wake_tx_queue :: %d %lu lsta %p sta %p " 6228 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 6229 "WAKE_TX_Q ac %d prio %u qmap %u\n", 6230 __func__, __LINE__, 6231 curthread->td_tid, jiffies, 6232 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 6233 skb_queue_len(<xq->skbq), ltxq->txq.ac, 6234 ltxq->txq.tid, ac, skb->priority, skb->qmap); 6235 #endif 6236 LKPI_80211_LTXQ_UNLOCK(ltxq); 6237 wiphy_lock(hw->wiphy); 6238 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq, true); 6239 wiphy_unlock(hw->wiphy); 6240 return; 6241 6242 ops_tx: 6243 #ifdef LINUXKPI_DEBUG_80211 6244 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 6245 printf("%s:%d mo_tx :: lsta %p { added_to_drv %d } sta %p " 6246 "ni %p %6D skb %p TX ac %d prio %u qmap %u\n", 6247 __func__, __LINE__, lsta, lsta->added_to_drv, sta, 6248 ni, ni->ni_macaddr, ":", skb, ac, skb->priority, skb->qmap); 6249 #endif 6250 memset(&control, 0, sizeof(control)); 6251 if (lsta->added_to_drv) 6252 control.sta = sta; 6253 wiphy_lock(hw->wiphy); 6254 lkpi_80211_mo_tx(hw, &control, skb); 6255 lsta->frms_tx++; 6256 wiphy_unlock(hw->wiphy); 6257 } 6258 6259 static void 6260 lkpi_80211_txq_task(void *ctx, int pending) 6261 { 6262 struct lkpi_sta *lsta; 6263 struct mbufq mq; 6264 struct mbuf *m; 6265 bool shall_tx; 6266 6267 lsta = ctx; 6268 6269 #ifdef LINUXKPI_DEBUG_80211 6270 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 6271 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 6272 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 6273 pending, mbufq_len(&lsta->txq)); 6274 #endif 6275 6276 mbufq_init(&mq, IFQ_MAXLEN); 6277 6278 LKPI_80211_LSTA_TXQ_LOCK(lsta); 6279 /* 6280 * Do not re-check lsta->txq_ready here; we may have a pending 6281 * disassoc/deauth frame still. On the contrary if txq_ready is 6282 * false we do not have a valid sta anymore in the firmware so no 6283 * point to try to TX. 6284 * We also use txq_ready as a semaphore and will drain the txq manually 6285 * if needed on our way towards SCAN/INIT in the state machine. 6286 */ 6287 #if 0 6288 shall_tx = lsta->added_to_drv && lsta->txq_ready; 6289 #else 6290 /* 6291 * Backout this part of 886653492945f which breaks rtw88 or 6292 * in general drivers without (*sta_state)() but only the 6293 * legacy fallback to (*sta_add)(). 6294 */ 6295 shall_tx = lsta->txq_ready; 6296 #endif 6297 if (__predict_true(shall_tx)) 6298 mbufq_concat(&mq, &lsta->txq); 6299 /* 6300 * else a state change will push the packets out manually or 6301 * lkpi_lsta_free() will drain the lsta->txq and free the mbufs. 6302 */ 6303 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 6304 6305 m = mbufq_dequeue(&mq); 6306 while (m != NULL) { 6307 lkpi_80211_txq_tx_one(lsta, m); 6308 m = mbufq_dequeue(&mq); 6309 } 6310 } 6311 6312 static int 6313 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 6314 { 6315 6316 /* XXX TODO */ 6317 IMPROVE(); 6318 6319 /* Quick and dirty cheating hack. */ 6320 struct ieee80211_node *ni; 6321 6322 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 6323 return (lkpi_xmit(ni, m, NULL, false)); 6324 } 6325 6326 #ifdef LKPI_80211_HT 6327 static int 6328 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 6329 const uint8_t *frm, const uint8_t *efrm) 6330 { 6331 struct ieee80211com *ic; 6332 struct lkpi_hw *lhw; 6333 6334 ic = ni->ni_ic; 6335 lhw = ic->ic_softc; 6336 6337 TRACEOK("recv_action called"); 6338 6339 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 6340 } 6341 6342 static int 6343 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 6344 { 6345 struct ieee80211com *ic; 6346 struct lkpi_hw *lhw; 6347 6348 ic = ni->ni_ic; 6349 lhw = ic->ic_softc; 6350 6351 TRACEOK("send_action with action %d called", action); 6352 6353 return (lhw->ic_send_action(ni, category, action, sa)); 6354 } 6355 6356 6357 static int 6358 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 6359 { 6360 struct ieee80211com *ic; 6361 struct lkpi_hw *lhw; 6362 6363 ic = ni->ni_ic; 6364 lhw = ic->ic_softc; 6365 6366 TRACEOK("ieee80211_ampdu_enable called"); 6367 6368 return (lhw->ic_ampdu_enable(ni, tap)); 6369 } 6370 6371 /* 6372 * (*ic_addba_request)() is called by ieee80211_ampdu_request() before 6373 * calling send_action(CAT_BA, BA_ADDBA_REQUEST). 6374 * 6375 * NB: returns 0 on ERROR! 6376 */ 6377 static int 6378 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 6379 int dialogtoken, int baparamset, int batimeout) 6380 { 6381 struct ieee80211com *ic; 6382 struct lkpi_hw *lhw; 6383 struct ieee80211_hw *hw; 6384 struct ieee80211vap *vap; 6385 struct lkpi_vif *lvif; 6386 struct ieee80211_vif *vif; 6387 struct lkpi_sta *lsta; 6388 struct ieee80211_sta *sta; 6389 struct ieee80211_ampdu_params params = { }; 6390 int error; 6391 6392 ic = ni->ni_ic; 6393 lhw = ic->ic_softc; 6394 hw = LHW_TO_HW(lhw); 6395 vap = ni->ni_vap; 6396 lvif = VAP_TO_LVIF(vap); 6397 vif = LVIF_TO_VIF(lvif); 6398 lsta = ni->ni_drv_data; 6399 sta = LSTA_TO_STA(lsta); 6400 6401 TRACEOK("ADDBA REQ tid %u", tap->txa_tid); 6402 6403 if (!lsta->added_to_drv) { 6404 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6405 __func__, lsta, ni, sta); 6406 return (0); 6407 } 6408 6409 params.sta = sta; 6410 params.action = IEEE80211_AMPDU_TX_START; 6411 /* Keep 0 here! */ 6412 params.buf_size = 0; 6413 params.timeout = 0; 6414 params.ssn = tap->txa_start & (IEEE80211_SEQ_RANGE-1); 6415 params.tid = tap->txa_tid; 6416 params.amsdu = false; 6417 6418 /* We get called from if_transmit all the way up unlocked in net80211. */ 6419 IEEE80211_UNLOCK_ASSERT(ic); 6420 wiphy_lock(hw->wiphy); 6421 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6422 wiphy_unlock(hw->wiphy); 6423 if (error == IEEE80211_AMPDU_TX_START_IMMEDIATE) { 6424 ic_printf(ic, "%s: mo_ampdu_action returned AMPDU_TX_START_IMMEDIATE. " 6425 "ni %p tap %p\n", __func__, ni, tap); 6426 } else if (error != 0) { 6427 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 6428 __func__, error, ni, tap); 6429 return (0); 6430 } 6431 6432 if (sta->txq[tap->txa_tid] != NULL) { 6433 struct lkpi_txq *ltxq; 6434 6435 ltxq = TXQ_TO_LTXQ(sta->txq[tap->txa_tid]); 6436 TRACEOK("ADDBA REQ ltxq tid %u flags %b qlen %d", tap->txa_tid, 6437 ltxq->flags, LKPI_TXQ_FLAGS_BITS, skb_queue_len(<xq->skbq)); 6438 ltxq->flags |= LKPI_TXQ_STOPPED_BA; 6439 } 6440 6441 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 6442 } 6443 6444 /* 6445 * (*ic_addba_response)() is called from ht_recv_action_ba_addba_response() 6446 * and calls the default ieee80211_addba_response() which always returns 1. 6447 * 6448 * NB: No error checking in net80211! 6449 * Staying with 0 is an error. 6450 */ 6451 static int 6452 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 6453 int status, int baparamset, int batimeout) 6454 { 6455 struct ieee80211com *ic; 6456 struct lkpi_hw *lhw; 6457 struct ieee80211_hw *hw; 6458 struct ieee80211vap *vap; 6459 struct lkpi_vif *lvif; 6460 struct ieee80211_vif *vif; 6461 struct lkpi_sta *lsta; 6462 struct ieee80211_sta *sta; 6463 struct ieee80211_ampdu_params params = { }; 6464 int error; 6465 6466 ic = ni->ni_ic; 6467 lhw = ic->ic_softc; 6468 hw = LHW_TO_HW(lhw); 6469 vap = ni->ni_vap; 6470 lvif = VAP_TO_LVIF(vap); 6471 vif = LVIF_TO_VIF(lvif); 6472 lsta = ni->ni_drv_data; 6473 sta = LSTA_TO_STA(lsta); 6474 6475 TRACEOK("ADDBA RESP status %d (0 == SUCCESS) tid %u", status, tap->txa_tid); 6476 6477 if (!lsta->added_to_drv) { 6478 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6479 __func__, lsta, ni, sta); 6480 return (0); 6481 } 6482 6483 if (status == IEEE80211_STATUS_SUCCESS) { 6484 params.sta = sta; 6485 params.action = IEEE80211_AMPDU_TX_OPERATIONAL; 6486 params.buf_size = tap->txa_wnd; 6487 params.timeout = 0; 6488 params.ssn = 0; 6489 params.tid = tap->txa_tid; 6490 if ((tap->txa_flags & IEEE80211_AGGR_AMSDU) != 0) 6491 params.amsdu = true; 6492 else 6493 params.amsdu = false; 6494 } else { 6495 /* We need to free the allocated resources. */ 6496 params.sta = sta; 6497 switch (status) { 6498 /* params.action = FLUSH, FLUSH_CONT */ 6499 default: 6500 params.action = IEEE80211_AMPDU_TX_STOP_CONT; 6501 break; 6502 } 6503 params.buf_size = 0; 6504 params.timeout = 0; 6505 params.ssn = 0; 6506 params.tid = tap->txa_tid; 6507 params.amsdu = false; 6508 } 6509 6510 /* We are called all they way up from ieee80211_input* without lock. */ 6511 wiphy_lock(hw->wiphy); 6512 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6513 wiphy_unlock(hw->wiphy); 6514 if (error != 0) { 6515 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 6516 __func__, error, ni, tap); 6517 return (0); 6518 } 6519 6520 if (sta->txq[tap->txa_tid] != NULL) { 6521 struct lkpi_txq *ltxq; 6522 6523 ltxq = TXQ_TO_LTXQ(sta->txq[tap->txa_tid]); 6524 TRACEOK("ADDBA RESP ltxq tid %u flags %b qlen %d", tap->txa_tid, 6525 ltxq->flags, LKPI_TXQ_FLAGS_BITS, skb_queue_len(<xq->skbq)); 6526 ltxq->flags &= ~LKPI_TXQ_STOPPED_BA; 6527 6528 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tap->txa_tid], true); 6529 } 6530 6531 IMPROVE_HT("who unleashes the TXQ? and when?, do we need to ni->ni_txseqs[tid] = tap->txa_start & 0xfff;"); 6532 6533 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 6534 } 6535 6536 /* 6537 * (*ic_addba_stop)() is called from ampdu_tx_stop(), ht_recv_action_ba_delba(), 6538 * and ieee80211_ampdu_stop() and calls the default ieee80211_addba_stop(). 6539 */ 6540 static void 6541 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 6542 { 6543 struct ieee80211com *ic; 6544 struct lkpi_hw *lhw; 6545 struct ieee80211_hw *hw; 6546 struct ieee80211vap *vap; 6547 struct lkpi_vif *lvif; 6548 struct ieee80211_vif *vif; 6549 struct lkpi_sta *lsta; 6550 struct ieee80211_sta *sta; 6551 struct ieee80211_ampdu_params params = { }; 6552 int error; 6553 6554 ic = ni->ni_ic; 6555 lhw = ic->ic_softc; 6556 hw = LHW_TO_HW(lhw); 6557 vap = ni->ni_vap; 6558 lvif = VAP_TO_LVIF(vap); 6559 vif = LVIF_TO_VIF(lvif); 6560 lsta = ni->ni_drv_data; 6561 sta = LSTA_TO_STA(lsta); 6562 6563 if (!lsta->added_to_drv) { 6564 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6565 __func__, lsta, ni, sta); 6566 goto n80211; 6567 } 6568 6569 /* We need to free the allocated resources. */ 6570 params.sta = sta; 6571 IMPROVE("net80211 does not provide a reason to us"); 6572 params.action = IEEE80211_AMPDU_TX_STOP_CONT; /* params.action = FLUSH, FLUSH_CONT */ 6573 params.buf_size = 0; 6574 params.timeout = 0; 6575 params.ssn = 0; 6576 params.tid = tap->txa_tid; 6577 params.amsdu = false; 6578 6579 IEEE80211_UNLOCK(ic); 6580 wiphy_lock(hw->wiphy); 6581 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6582 wiphy_unlock(hw->wiphy); 6583 IEEE80211_LOCK(ic); 6584 if (error != 0) { 6585 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 6586 __func__, error, ni, tap); 6587 goto n80211; 6588 } 6589 6590 IMPROVE_HT("anyting else?"); 6591 6592 n80211: 6593 lhw->ic_addba_stop(ni, tap); 6594 } 6595 6596 static void 6597 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 6598 { 6599 struct ieee80211com *ic; 6600 struct lkpi_hw *lhw; 6601 struct lkpi_sta *lsta; 6602 struct ieee80211_sta *sta; 6603 6604 ic = ni->ni_ic; 6605 lhw = ic->ic_softc; 6606 lsta = ni->ni_drv_data; 6607 sta = LSTA_TO_STA(lsta); 6608 6609 TRACEOK("ADDBA RESP TIMEO tid %u", tap->txa_tid); 6610 6611 IMPROVE_HT(); 6612 6613 if (!lsta->added_to_drv) { 6614 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6615 __func__, lsta, ni, sta); 6616 goto n80211; 6617 } 6618 6619 /* We need to re-enable the txq and get packets out. */ 6620 if (sta->txq[tap->txa_tid] != NULL) { 6621 struct lkpi_txq *ltxq; 6622 struct ieee80211_hw *hw; 6623 6624 ltxq = TXQ_TO_LTXQ(sta->txq[tap->txa_tid]); 6625 TRACEOK("ADDBA RESP TIMEO ltxq tid %u flags %b qlen %d", 6626 tap->txa_tid, ltxq->flags, LKPI_TXQ_FLAGS_BITS, 6627 skb_queue_len(<xq->skbq)); 6628 ltxq->flags &= ~LKPI_TXQ_STOPPED_BA; 6629 6630 hw = LHW_TO_HW(lhw); 6631 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tap->txa_tid], true); 6632 } 6633 6634 n80211: 6635 lhw->ic_addba_response_timeout(ni, tap); 6636 } 6637 6638 static void 6639 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 6640 int status) 6641 { 6642 struct ieee80211com *ic; 6643 struct lkpi_hw *lhw; 6644 6645 ic = ni->ni_ic; 6646 lhw = ic->ic_softc; 6647 6648 IMPROVE_HT(); 6649 6650 lhw->ic_bar_response(ni, tap, status); 6651 } 6652 6653 static int 6654 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 6655 int baparamset, int batimeout, int baseqctl) 6656 { 6657 struct ieee80211com *ic; 6658 struct lkpi_hw *lhw; 6659 struct ieee80211_hw *hw; 6660 struct ieee80211vap *vap; 6661 struct lkpi_vif *lvif; 6662 struct ieee80211_vif *vif; 6663 struct lkpi_sta *lsta; 6664 struct ieee80211_sta *sta; 6665 struct ieee80211_ampdu_params params = { }; 6666 int error; 6667 6668 ic = ni->ni_ic; 6669 lhw = ic->ic_softc; 6670 hw = LHW_TO_HW(lhw); 6671 vap = ni->ni_vap; 6672 lvif = VAP_TO_LVIF(vap); 6673 vif = LVIF_TO_VIF(lvif); 6674 lsta = ni->ni_drv_data; 6675 sta = LSTA_TO_STA(lsta); 6676 6677 IEEE80211_UNLOCK_ASSERT(ic); 6678 6679 if (!lsta->added_to_drv) { 6680 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p not added to firmware\n", 6681 __func__, lsta, ni, vap, sta); 6682 return (-ENXIO); 6683 } 6684 6685 if (lsta->state != IEEE80211_STA_AUTHORIZED) { 6686 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p state %d not AUTHORIZED\n", 6687 __func__, lsta, ni, vap, sta, lsta->state); 6688 return (-ENXIO); 6689 } 6690 6691 params.sta = sta; 6692 params.action = IEEE80211_AMPDU_RX_START; 6693 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 6694 if (params.buf_size == 0) 6695 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 6696 else 6697 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 6698 if (hw->max_rx_aggregation_subframes > 0 && 6699 params.buf_size > hw->max_rx_aggregation_subframes) 6700 params.buf_size = hw->max_rx_aggregation_subframes; 6701 params.timeout = le16toh(batimeout); 6702 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 6703 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 6704 6705 /* Based on net80211::ampdu_rx_start(). */ 6706 if ((vap->iv_htcaps & IEEE80211_HTC_RX_AMSDU_AMPDU) && 6707 (_IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_AMSDU))) 6708 params.amsdu = true; 6709 else 6710 params.amsdu = false; 6711 6712 wiphy_lock(hw->wiphy); 6713 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6714 wiphy_unlock(hw->wiphy); 6715 if (error != 0) { 6716 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 6717 __func__, error, ni, rap); 6718 return (error); 6719 } 6720 6721 if (!ieee80211_hw_check(hw, SUPPORTS_REORDERING_BUFFER)) { 6722 IMPROVE("%s: TODO: SUPPORTS_REORDERING_BUFFER not set; check net80211\n", __func__); 6723 } 6724 6725 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 6726 6727 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 6728 return (error); 6729 } 6730 6731 static void 6732 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 6733 { 6734 struct ieee80211com *ic; 6735 struct lkpi_hw *lhw; 6736 struct ieee80211_hw *hw; 6737 struct ieee80211vap *vap; 6738 struct lkpi_vif *lvif; 6739 struct ieee80211_vif *vif; 6740 struct lkpi_sta *lsta; 6741 struct ieee80211_sta *sta; 6742 struct ieee80211_ampdu_params params = { }; 6743 int error; 6744 uint8_t tid; 6745 bool ic_locked; 6746 6747 ic = ni->ni_ic; 6748 lhw = ic->ic_softc; 6749 6750 /* 6751 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 6752 * we did not START. Some drivers pass it down to firmware which will 6753 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 6754 * ieee80211_ht_node_init() amongst others which will iterate over all 6755 * tid and call ic_ampdu_rx_stop() unconditionally. 6756 * XXX net80211 should probably be more "gentle" in these cases and 6757 * track some state itself. 6758 */ 6759 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 6760 goto net80211_only; 6761 6762 hw = LHW_TO_HW(lhw); 6763 vap = ni->ni_vap; 6764 lvif = VAP_TO_LVIF(vap); 6765 vif = LVIF_TO_VIF(lvif); 6766 lsta = ni->ni_drv_data; 6767 if (lsta == NULL) { 6768 ic_printf(ic, "%s: lsta %p ni %p vap %p, lsta is NULL\n", 6769 __func__, lsta, ni, vap); 6770 goto net80211_only; 6771 } 6772 sta = LSTA_TO_STA(lsta); 6773 6774 if (!lsta->added_to_drv) { 6775 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p not added to firmware\n", 6776 __func__, lsta, ni, vap, sta); 6777 goto net80211_only; 6778 } 6779 6780 if (lsta->state != IEEE80211_STA_AUTHORIZED) { 6781 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p state %d not AUTHORIZED\n", 6782 __func__, lsta, ni, vap, sta, lsta->state); 6783 goto net80211_only; 6784 } 6785 6786 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 6787 for (tid = 0; tid < WME_NUM_TID; tid++) { 6788 if (&ni->ni_rx_ampdu[tid] == rap) 6789 break; 6790 } 6791 if (tid == WME_NUM_TID) { 6792 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p TID not found\n", 6793 __func__, lsta, ni, vap, sta); 6794 goto net80211_only; 6795 } 6796 6797 params.sta = sta; 6798 params.action = IEEE80211_AMPDU_RX_STOP; 6799 params.buf_size = 0; 6800 params.timeout = 0; 6801 params.ssn = 0; 6802 params.tid = tid; 6803 params.amsdu = false; 6804 6805 ic_locked = IEEE80211_IS_LOCKED(ic); 6806 if (ic_locked) 6807 IEEE80211_UNLOCK(ic); 6808 wiphy_lock(hw->wiphy); 6809 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6810 wiphy_unlock(hw->wiphy); 6811 if (ic_locked) 6812 IEEE80211_LOCK(ic); 6813 if (error != 0) 6814 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 6815 __func__, error, ni, rap); 6816 6817 net80211_only: 6818 lhw->ic_ampdu_rx_stop(ni, rap); 6819 } 6820 #endif 6821 6822 int 6823 linuxkpi_ieee80211_start_tx_ba_session(struct ieee80211_sta *sta, uint8_t tid, 6824 int timeout) 6825 { 6826 struct lkpi_sta *lsta; 6827 struct ieee80211_hw *hw; 6828 struct lkpi_hw *lhw; 6829 struct ieee80211_tx_ampdu *tap; 6830 int worked; 6831 6832 lsta = STA_TO_LSTA(sta); 6833 6834 /* If tid is out of range, fail gracefully. */ 6835 /* XXX-BZ are we limited to 8? */ 6836 if (tid >= IEEE80211_NUM_TIDS) { 6837 net80211_vap_printf(lsta->ni->ni_vap, "%s: tid %u out of range " 6838 ">= %u\n", __func__, tid, IEEE80211_NUM_TIDS); 6839 return (-EINVAL); 6840 } 6841 6842 hw = lsta->hw; 6843 lhw = HW_TO_LHW(hw); 6844 6845 /* No ampdu_action support, just error. */ 6846 if (lhw->ops->ampdu_action == NULL) { 6847 net80211_vap_printf(lsta->ni->ni_vap, "%s: (*ampdu_action) " 6848 "not supported\n", __func__); 6849 return (-ENOTSUPP); 6850 } 6851 6852 /* Does HW allow us to set this up? */ 6853 if (!ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { 6854 net80211_vap_printf(lsta->ni->ni_vap, "%s: !AMPDU_AGGREGATION\n", 6855 __func__); 6856 return (-ENOTSUPP); 6857 } 6858 if (ieee80211_hw_check(hw, TX_AMPDU_SETUP_IN_HW)) { 6859 net80211_vap_printf(lsta->ni->ni_vap, "%s: TX_AMPDU_SETUP_IN_HW\n", 6860 __func__); 6861 return (-EPERM); 6862 } 6863 6864 /* We need at least HT or higher support enabled. */ 6865 if (!sta->deflink.ht_cap.ht_supported && 6866 !sta->deflink.vht_cap.vht_supported && 6867 !sta->deflink.he_cap.has_he && 6868 !sta->deflink.eht_cap.has_eht) { 6869 net80211_vap_printf(lsta->ni->ni_vap, "%s: HT or later not " 6870 "supported\n", __func__); 6871 return (-EINVAL); 6872 } 6873 6874 #ifdef __notyet__ 6875 /* 6876 * We need some rate limiting/disabling in case we try too hard and 6877 * get NACKed over and over. 6878 * XXX-BZ This check should likely go to addba_req along with a counter. 6879 */ 6880 if (lsta->block_ba) 6881 return (-EACCESS); 6882 #endif 6883 6884 /* XXX-BZ locking? */ 6885 6886 /* Do we have a running session already? */ 6887 tap = &lsta->ni->ni_tx_ampdu[tid]; 6888 if (IEEE80211_AMPDU_REQUESTED(tap)) { 6889 net80211_vap_printf(lsta->ni->ni_vap, "%s: " 6890 "AMPDU requested/running\n", __func__); 6891 return (-EINPROGRESS); 6892 } 6893 6894 /* Tell net80211 to setup an aggr sessions. */ 6895 /* XXX-BZ we have no way to carry the timeout forward easily. */ 6896 worked = ieee80211_ampdu_tx_request_ext(lsta->ni, tid); 6897 TRACEOK("ieee80211_ampdu_tx_request_ext %d", worked); 6898 6899 if (worked != 1) { 6900 net80211_vap_printf(lsta->ni->ni_vap, "%s: " 6901 "ieee80211_ampdu_tx_request_ext returned %d != 1\n", 6902 __func__, worked); 6903 return (-EINVAL); 6904 } 6905 6906 /* 6907 * How do we make sure the EAPOL handshake has completed? 6908 * Let ieee80211_output do it. 6909 */ 6910 if (1) { 6911 /* Immediately trigger the setup and output of the action frame. */ 6912 worked = ieee80211_ampdu_request(lsta->ni, tap); 6913 if (worked != 1) { 6914 net80211_vap_printf(lsta->ni->ni_vap, "%s: " 6915 "ieee80211_ampdu_request returned %d != 1\n", 6916 __func__, worked); 6917 return (-EAGAIN); 6918 } 6919 } 6920 6921 return (0); 6922 } 6923 6924 static void 6925 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 6926 uint8_t *bands, int *chan_flags, enum nl80211_band band) 6927 { 6928 #ifdef LKPI_80211_HT 6929 struct ieee80211_sta_ht_cap *ht_cap; 6930 6931 ht_cap = &hw->wiphy->bands[band]->ht_cap; 6932 if (!ht_cap->ht_supported) 6933 return; 6934 6935 switch (band) { 6936 case NL80211_BAND_2GHZ: 6937 setbit(bands, IEEE80211_MODE_11NG); 6938 break; 6939 case NL80211_BAND_5GHZ: 6940 setbit(bands, IEEE80211_MODE_11NA); 6941 break; 6942 default: 6943 IMPROVE("Unsupported band %d", band); 6944 return; 6945 } 6946 6947 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 6948 6949 /* 6950 * Rather than manually checking each flag and 6951 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 6952 * simply copy the 16bits. 6953 */ 6954 ic->ic_htcaps |= ht_cap->cap; 6955 6956 /* Then deal with the other flags. */ 6957 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 6958 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 6959 #ifdef __notyet__ 6960 if (ieee80211_hw_check(hw, TX_AMSDU)) 6961 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 6962 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 6963 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 6964 IEEE80211_HTC_TX_AMSDU_AMPDU); 6965 #endif 6966 6967 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 6968 6969 /* Only add HT40 channels if supported. */ 6970 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 6971 chan_flags != NULL) 6972 *chan_flags |= NET80211_CBW_FLAG_HT40; 6973 #endif 6974 } 6975 6976 static void 6977 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 6978 int *n, struct ieee80211_channel *c) 6979 { 6980 struct lkpi_hw *lhw; 6981 struct ieee80211_hw *hw; 6982 struct linuxkpi_ieee80211_channel *channels; 6983 uint8_t bands[IEEE80211_MODE_BYTES]; 6984 int chan_flags, error, i, nchans; 6985 6986 /* Channels */ 6987 lhw = ic->ic_softc; 6988 hw = LHW_TO_HW(lhw); 6989 6990 /* NL80211_BAND_2GHZ */ 6991 nchans = 0; 6992 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 6993 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 6994 if (nchans > 0) { 6995 struct ieee80211_supported_band *supband; 6996 6997 memset(bands, 0, sizeof(bands)); 6998 chan_flags = 0; 6999 setbit(bands, IEEE80211_MODE_11B); 7000 7001 /* Check for 11g (simplified). */ 7002 supband = hw->wiphy->bands[NL80211_BAND_2GHZ]; 7003 for (i = 0; i < supband->n_bitrates; i++) { 7004 if ((supband->bitrates[i].flags & 7005 IEEE80211_RATE_MANDATORY_G) != 0) { 7006 setbit(bands, IEEE80211_MODE_11G); 7007 break; 7008 } 7009 } 7010 7011 IMPROVE("the bitrates may have flags?"); 7012 7013 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 7014 NL80211_BAND_2GHZ); 7015 7016 channels = supband->channels; 7017 for (i = 0; i < nchans && *n < maxchan; i++) { 7018 uint32_t nflags = 0; 7019 int cflags = chan_flags; 7020 7021 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 7022 ic_printf(ic, "%s: Skipping disabled chan " 7023 "[%u/%u/%#x]\n", __func__, 7024 channels[i].hw_value, 7025 channels[i].center_freq, channels[i].flags); 7026 continue; 7027 } 7028 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 7029 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 7030 if (channels[i].flags & IEEE80211_CHAN_RADAR) 7031 nflags |= IEEE80211_CHAN_DFS; 7032 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 7033 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 7034 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 7035 cflags &= ~NET80211_CBW_FLAG_VHT80; 7036 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 7037 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 7038 cflags &= ~NET80211_CBW_FLAG_HT40; 7039 7040 error = ieee80211_add_channel_cbw(c, maxchan, n, 7041 ieee80211_mhz2ieee(channels[i].center_freq, 7042 lkpi_nl80211_band_to_net80211_band(channels[i].band)), 7043 channels[i].center_freq, channels[i].max_power, 7044 nflags, bands, cflags); 7045 /* net80211::ENOBUFS: *n >= maxchans */ 7046 if (error != 0 && error != ENOBUFS) 7047 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 7048 "returned error %d\n", 7049 __func__, channels[i].hw_value, 7050 channels[i].center_freq, channels[i].flags, 7051 nflags, chan_flags, cflags, error); 7052 if (error != 0) 7053 break; 7054 } 7055 } 7056 7057 /* NL80211_BAND_5GHZ */ 7058 nchans = 0; 7059 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 7060 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 7061 if (nchans > 0) { 7062 memset(bands, 0, sizeof(bands)); 7063 chan_flags = 0; 7064 setbit(bands, IEEE80211_MODE_11A); 7065 7066 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 7067 NL80211_BAND_5GHZ); 7068 7069 #ifdef LKPI_80211_VHT 7070 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported) { 7071 7072 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 7073 ic->ic_vht_cap.vht_cap_info = 7074 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 7075 ic->ic_vht_cap.supp_mcs = 7076 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_mcs; 7077 7078 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 7079 chan_flags |= NET80211_CBW_FLAG_VHT80; 7080 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 7081 ic->ic_vht_cap.vht_cap_info)) 7082 chan_flags |= NET80211_CBW_FLAG_VHT160; 7083 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 7084 ic->ic_vht_cap.vht_cap_info)) 7085 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 7086 } 7087 #endif 7088 7089 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 7090 for (i = 0; i < nchans && *n < maxchan; i++) { 7091 uint32_t nflags = 0; 7092 int cflags = chan_flags; 7093 7094 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 7095 ic_printf(ic, "%s: Skipping disabled chan " 7096 "[%u/%u/%#x]\n", __func__, 7097 channels[i].hw_value, 7098 channels[i].center_freq, channels[i].flags); 7099 continue; 7100 } 7101 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 7102 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 7103 if (channels[i].flags & IEEE80211_CHAN_RADAR) 7104 nflags |= IEEE80211_CHAN_DFS; 7105 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 7106 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 7107 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 7108 cflags &= ~NET80211_CBW_FLAG_VHT80; 7109 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 7110 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 7111 cflags &= ~NET80211_CBW_FLAG_HT40; 7112 7113 error = ieee80211_add_channel_cbw(c, maxchan, n, 7114 ieee80211_mhz2ieee(channels[i].center_freq, 7115 lkpi_nl80211_band_to_net80211_band(channels[i].band)), 7116 channels[i].center_freq, channels[i].max_power, 7117 nflags, bands, cflags); 7118 /* net80211::ENOBUFS: *n >= maxchans */ 7119 if (error != 0 && error != ENOBUFS) 7120 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 7121 "returned error %d\n", 7122 __func__, channels[i].hw_value, 7123 channels[i].center_freq, channels[i].flags, 7124 nflags, chan_flags, cflags, error); 7125 if (error != 0) 7126 break; 7127 } 7128 } 7129 } 7130 7131 static void * 7132 lkpi_ieee80211_ifalloc(void) 7133 { 7134 struct ieee80211com *ic; 7135 7136 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 7137 7138 /* Setting these happens later when we have device information. */ 7139 ic->ic_softc = NULL; 7140 ic->ic_name = "linuxkpi"; 7141 7142 return (ic); 7143 } 7144 7145 struct ieee80211_hw * 7146 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 7147 { 7148 struct ieee80211_hw *hw; 7149 struct lkpi_hw *lhw; 7150 struct wiphy *wiphy; 7151 int ac; 7152 bool emuchanctx; 7153 7154 /* 7155 * Do certain checks before starting to allocate resources. 7156 * Store results in temporary variables. 7157 */ 7158 7159 /* ac1d519c01ca introduced emulating chanctx changes. */ 7160 emuchanctx = false; 7161 if (ops->add_chanctx == ieee80211_emulate_add_chanctx && 7162 ops->change_chanctx == ieee80211_emulate_change_chanctx && 7163 ops->remove_chanctx == ieee80211_emulate_remove_chanctx) { 7164 /* 7165 * If we emulate the chanctx ops, we must not have 7166 * assign_vif_chanctx and unassign_vif_chanctx. 7167 */ 7168 if (ops->assign_vif_chanctx != NULL || 7169 ops->unassign_vif_chanctx != NULL) { 7170 /* Fail gracefully. */ 7171 printf("%s: emulate_chanctx but " 7172 "assign_vif_chanctx %p != NULL || " 7173 "unassign_vif_chanctx %p != NULL\n", __func__, 7174 ops->assign_vif_chanctx, ops->unassign_vif_chanctx); 7175 return (NULL); 7176 } 7177 emuchanctx = true; 7178 } 7179 if (!emuchanctx && (ops->add_chanctx == ieee80211_emulate_add_chanctx || 7180 ops->change_chanctx == ieee80211_emulate_change_chanctx || 7181 ops->remove_chanctx == ieee80211_emulate_remove_chanctx)) { 7182 printf("%s: not emulating chanctx changes but emulating " 7183 "function set: %d/%d/%d\n", __func__, 7184 ops->add_chanctx == ieee80211_emulate_add_chanctx, 7185 ops->change_chanctx == ieee80211_emulate_change_chanctx, 7186 ops->remove_chanctx == ieee80211_emulate_remove_chanctx); 7187 return (NULL); 7188 } 7189 if (!emuchanctx && (ops->add_chanctx == NULL || ops->change_chanctx == NULL || 7190 ops->remove_chanctx == NULL || ops->assign_vif_chanctx == NULL || 7191 ops->unassign_vif_chanctx == NULL)) { 7192 printf("%s: not all functions set for chanctx operations " 7193 "(emulating chanctx %d): %p/%p/%p %p/%p\n", 7194 __func__, emuchanctx, 7195 ops->add_chanctx, ops->change_chanctx, ops->remove_chanctx, 7196 ops->assign_vif_chanctx, ops->unassign_vif_chanctx); 7197 return (NULL); 7198 } 7199 7200 /* Get us and the driver data also allocated. */ 7201 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 7202 if (wiphy == NULL) 7203 return (NULL); 7204 7205 lhw = wiphy_priv(wiphy); 7206 lhw->ops = ops; 7207 7208 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 7209 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 7210 spin_lock_init(&lhw->txq_lock); 7211 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 7212 LKPI_80211_LHW_MC_LOCK_INIT(lhw); 7213 TAILQ_INIT(&lhw->lvif_head); 7214 __hw_addr_init(&lhw->mc_list); 7215 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 7216 spin_lock_init(&lhw->txq_scheduled_lock[ac]); 7217 lhw->txq_generation[ac] = 1; 7218 TAILQ_INIT(&lhw->txq_scheduled[ac]); 7219 } 7220 7221 /* Chanctx_conf */ 7222 INIT_LIST_HEAD(&lhw->lchanctx_list); 7223 INIT_LIST_HEAD(&lhw->lchanctx_list_reserved); 7224 lhw->emulate_chanctx = emuchanctx; 7225 7226 /* Deferred RX path. */ 7227 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 7228 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 7229 mbufq_init(&lhw->rxq, 32 * NAPI_POLL_WEIGHT); 7230 lhw->rxq_stopped = false; 7231 7232 /* 7233 * XXX-BZ TODO make sure there is a "_null" function to all ops 7234 * not initialized. 7235 */ 7236 hw = LHW_TO_HW(lhw); 7237 hw->wiphy = wiphy; 7238 hw->conf.flags |= IEEE80211_CONF_IDLE; 7239 hw->priv = (void *)(lhw + 1); 7240 7241 /* BSD Specific. */ 7242 lhw->ic = lkpi_ieee80211_ifalloc(); 7243 7244 if (lhw->emulate_chanctx) 7245 ic_printf(lhw->ic, "Using chanctx emulation.\n"); 7246 IMPROVE(); 7247 7248 return (hw); 7249 } 7250 7251 void 7252 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 7253 { 7254 struct lkpi_hw *lhw; 7255 struct mbuf *m; 7256 int ac; 7257 7258 lhw = HW_TO_LHW(hw); 7259 free(lhw->ic, M_LKPI80211); 7260 lhw->ic = NULL; 7261 7262 /* 7263 * Drain the deferred RX path. 7264 */ 7265 LKPI_80211_LHW_RXQ_LOCK(lhw); 7266 lhw->rxq_stopped = true; 7267 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 7268 7269 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 7270 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 7271 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 7272 7273 /* Flush mbufq (make sure to release ni refs!). */ 7274 m = mbufq_dequeue(&lhw->rxq); 7275 while (m != NULL) { 7276 #ifdef LKPI_80211_USE_MTAG 7277 struct m_tag *mtag; 7278 7279 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 7280 if (mtag != NULL) { 7281 struct lkpi_80211_tag_rxni *rxni; 7282 7283 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 7284 ieee80211_free_node(rxni->ni); 7285 } 7286 #else 7287 if (m->m_pkthdr.PH_loc.ptr != NULL) { 7288 struct ieee80211_node *ni; 7289 7290 ni = m->m_pkthdr.PH_loc.ptr; 7291 ieee80211_free_node(ni); 7292 } 7293 #endif 7294 m_freem(m); 7295 m = mbufq_dequeue(&lhw->rxq); 7296 } 7297 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 7298 __func__, lhw, mbufq_len(&lhw->rxq))); 7299 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 7300 7301 wiphy_lock(hw->wiphy); 7302 /* Chanctx_conf. */ 7303 if (!list_empty_careful(&lhw->lchanctx_list)) { 7304 struct lkpi_chanctx *lchanctx, *next; 7305 struct ieee80211_chanctx_conf *chanctx_conf; 7306 7307 list_for_each_entry_safe(lchanctx, next, &lhw->lchanctx_list, entry) { 7308 if (lchanctx->added_to_drv) { 7309 /* In reality we should panic? */ 7310 chanctx_conf = &lchanctx->chanctx_conf; 7311 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 7312 } 7313 list_del(&lchanctx->entry); 7314 /* No need to reset the lchanctx here as we will free it below. */ 7315 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list_reserved); 7316 } 7317 } 7318 if (!list_empty_careful(&lhw->lchanctx_list_reserved)) { 7319 struct lkpi_chanctx *lchanctx, *next; 7320 7321 list_for_each_entry_safe(lchanctx, next, &lhw->lchanctx_list_reserved, entry) { 7322 list_del(&lchanctx->entry); 7323 if (lchanctx->added_to_drv) 7324 panic("%s: lchanctx %p on reserved list still added_to_drv\n", 7325 __func__, lchanctx); 7326 free(lchanctx, M_LKPI80211); 7327 } 7328 } 7329 wiphy_unlock(hw->wiphy); 7330 7331 LKPI_80211_LHW_MC_LOCK(lhw); 7332 lkpi_cleanup_mcast_list_locked(lhw); 7333 LKPI_80211_LHW_MC_UNLOCK(lhw); 7334 7335 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 7336 spin_lock_destroy(&lhw->txq_scheduled_lock[ac]); 7337 7338 /* Cleanup more of lhw here or in wiphy_free()? */ 7339 spin_lock_destroy(&lhw->txq_lock); 7340 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 7341 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 7342 sx_destroy(&lhw->lvif_sx); 7343 LKPI_80211_LHW_MC_LOCK_DESTROY(lhw) 7344 IMPROVE(); 7345 } 7346 7347 void 7348 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw) 7349 { 7350 struct lkpi_hw *lhw; 7351 struct ieee80211com *ic; 7352 struct device *dev; 7353 7354 lhw = HW_TO_LHW(hw); 7355 ic = lhw->ic; 7356 7357 /* Save the backpointer from net80211 to LinuxKPI. */ 7358 ic->ic_softc = lhw; 7359 7360 /* 7361 * Set a proper name before ieee80211_ifattach() if dev is set. 7362 * ath1xk also unset the dev so we need to check. 7363 * Also we will (ab)use this opportunity to register the 7364 * power management sub-children if thay exist (for suspend/resume). 7365 */ 7366 dev = wiphy_dev(hw->wiphy); 7367 if (dev != NULL) { 7368 ic->ic_name = dev_name(dev); 7369 if (dev->bsddev != NULL) { 7370 bus_identify_children(dev->bsddev); 7371 bus_enumerate_hinted_children(dev->bsddev); 7372 bus_topo_lock(); 7373 bus_attach_children(dev->bsddev); 7374 bus_topo_unlock(); 7375 } 7376 } else { 7377 TODO("adjust arguments to still have the old dev or go through " 7378 "the hoops of getting the bsddev from hw and detach; " 7379 "or do in XXX; check ath1kx drivers"); 7380 } 7381 7382 /* XXX-BZ do we also need to set wiphy name? */ 7383 } 7384 7385 struct ieee80211_hw * 7386 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 7387 { 7388 struct lkpi_hw *lhw; 7389 7390 lhw = wiphy_priv(wiphy); 7391 return (LHW_TO_HW(lhw)); 7392 } 7393 7394 static void 7395 lkpi_radiotap_attach(struct lkpi_hw *lhw) 7396 { 7397 struct ieee80211com *ic; 7398 7399 ic = lhw->ic; 7400 ieee80211_radiotap_attach(ic, 7401 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 7402 LKPI_RTAP_TX_FLAGS_PRESENT, 7403 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 7404 LKPI_RTAP_RX_FLAGS_PRESENT); 7405 } 7406 7407 int 7408 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 7409 { 7410 struct ieee80211com *ic; 7411 struct lkpi_hw *lhw; 7412 int band, i; 7413 7414 lhw = HW_TO_LHW(hw); 7415 ic = lhw->ic; 7416 7417 /* We do it this late as wiphy->dev should be set for the name. */ 7418 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 7419 if (lhw->workq == NULL) 7420 return (-EAGAIN); 7421 7422 /* XXX-BZ figure this out how they count his... */ 7423 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 7424 IEEE80211_ADDR_COPY(ic->ic_macaddr, 7425 hw->wiphy->perm_addr); 7426 } else if (hw->wiphy->n_addresses > 0) { 7427 /* We take the first one. */ 7428 IEEE80211_ADDR_COPY(ic->ic_macaddr, 7429 hw->wiphy->addresses[0].addr); 7430 } else { 7431 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 7432 } 7433 7434 #ifdef __not_yet__ 7435 /* See comment in lkpi_80211_txq_tx_one(). */ 7436 ic->ic_headroom = hw->extra_tx_headroom; 7437 #endif 7438 7439 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 7440 ic->ic_opmode = IEEE80211_M_STA; 7441 7442 /* Set device capabilities. */ 7443 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 7444 ic->ic_caps = 7445 IEEE80211_C_STA | 7446 IEEE80211_C_MONITOR | 7447 IEEE80211_C_WPA | /* WPA/RSN */ 7448 #ifdef LKPI_80211_WME 7449 IEEE80211_C_WME | 7450 #endif 7451 #if 0 7452 IEEE80211_C_PMGT | 7453 #endif 7454 IEEE80211_C_SHSLOT | /* short slot time supported */ 7455 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 7456 ; 7457 7458 #ifdef LKPI_80211_BGSCAN 7459 if (lhw->ops->hw_scan) 7460 ic->ic_caps |= IEEE80211_C_BGSCAN; 7461 #endif 7462 7463 lkpi_enable_hw_scan(lhw); 7464 7465 /* Does the driver/firmware handle rate countrol? */ 7466 /* Currently only older iwlwifi mvm devices are in this category. */ 7467 if (bootverbose && !ieee80211_hw_check(hw, HAS_RATE_CONTROL)) 7468 ic_printf(ic, "NOTE: rate control not supported by LinuxKPI; " 7469 "expect low rates only\n"); 7470 7471 /* Does HW support Fragmentation offload? */ 7472 if (ieee80211_hw_check(hw, SUPPORTS_TX_FRAG)) 7473 ic->ic_flags_ext |= IEEE80211_FEXT_FRAG_OFFLOAD; 7474 7475 /* Does HW support full AMPDU[-TX] offload? */ 7476 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 7477 ic->ic_flags_ext |= IEEE80211_FEXT_AMPDU_OFFLOAD; 7478 #ifdef __notyet__ 7479 if (ieee80211_hw_check(hw, TX_AMSDU)) 7480 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 7481 #endif 7482 7483 /* 7484 * The wiphy variables report bitmasks of avail antennas. 7485 * (*get_antenna) get the current bitmask sets which can be 7486 * altered by (*set_antenna) for some drivers. 7487 * XXX-BZ will the count alone do us much good long-term in net80211? 7488 */ 7489 if (hw->wiphy->available_antennas_rx || 7490 hw->wiphy->available_antennas_tx) { 7491 uint32_t rxs, txs; 7492 7493 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 7494 ic->ic_rxstream = bitcount32(rxs); 7495 ic->ic_txstream = bitcount32(txs); 7496 } 7497 } 7498 7499 ic->ic_cryptocaps = 0; 7500 #ifdef LKPI_80211_HW_CRYPTO 7501 if (lkpi_hwcrypto && hw->wiphy->n_cipher_suites > 0) { 7502 uint32_t hwciphers; 7503 7504 hwciphers = 0; 7505 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) { 7506 uint32_t cs; 7507 7508 cs = lkpi_l80211_to_net80211_cyphers( 7509 ic, hw->wiphy->cipher_suites[i]); 7510 if (cs == IEEE80211_CRYPTO_TKIP) { 7511 /* 7512 * We do set this here. We will only find out 7513 * when doing a SET_KEY operation depending on 7514 * what the driver returns. 7515 * net80211::ieee80211_crypto_newkey() 7516 * checks this so we will have to do flags 7517 * surgery later. 7518 */ 7519 cs |= IEEE80211_CRYPTO_TKIPMIC; 7520 } 7521 hwciphers |= cs; 7522 } 7523 /* 7524 * (20250415) nothing anywhere in the path checks we actually 7525 * support all these in net80211. 7526 * net80211 supports _256 variants but the ioctl does not. 7527 */ 7528 IMPROVE("as net80211 grows more support, enable them"); 7529 hwciphers &= (IEEE80211_CRYPTO_WEP | 7530 IEEE80211_CRYPTO_TKIP | IEEE80211_CRYPTO_TKIPMIC | 7531 IEEE80211_CRYPTO_AES_CCM | IEEE80211_CRYPTO_AES_GCM_128); 7532 /* 7533 * We only support CCMP here, so further filter. 7534 * Also permit TKIP if turned on. 7535 */ 7536 hwciphers &= (IEEE80211_CRYPTO_AES_CCM | 7537 IEEE80211_CRYPTO_AES_GCM_128 | 7538 (lkpi_hwcrypto_tkip ? (IEEE80211_CRYPTO_TKIP | 7539 IEEE80211_CRYPTO_TKIPMIC) : 0)); 7540 ieee80211_set_hardware_ciphers(ic, hwciphers); 7541 } 7542 #endif 7543 7544 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 7545 ic->ic_channels); 7546 7547 ieee80211_ifattach(ic); 7548 7549 ic->ic_update_mcast = lkpi_ic_update_mcast; 7550 ic->ic_update_promisc = lkpi_ic_update_promisc; 7551 ic->ic_update_chw = lkpi_ic_update_chw; 7552 ic->ic_parent = lkpi_ic_parent; 7553 ic->ic_scan_start = lkpi_ic_scan_start; 7554 ic->ic_scan_end = lkpi_ic_scan_end; 7555 ic->ic_set_channel = lkpi_ic_set_channel; 7556 ic->ic_transmit = lkpi_ic_transmit; 7557 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 7558 ic->ic_vap_create = lkpi_ic_vap_create; 7559 ic->ic_vap_delete = lkpi_ic_vap_delete; 7560 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 7561 ic->ic_wme.wme_update = lkpi_ic_wme_update; 7562 7563 lhw->ic_scan_curchan = ic->ic_scan_curchan; 7564 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 7565 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 7566 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 7567 7568 lhw->ic_node_alloc = ic->ic_node_alloc; 7569 ic->ic_node_alloc = lkpi_ic_node_alloc; 7570 lhw->ic_node_init = ic->ic_node_init; 7571 ic->ic_node_init = lkpi_ic_node_init; 7572 lhw->ic_node_cleanup = ic->ic_node_cleanup; 7573 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 7574 lhw->ic_node_free = ic->ic_node_free; 7575 ic->ic_node_free = lkpi_ic_node_free; 7576 7577 #ifdef LKPI_80211_HT 7578 /* 7579 * Only attach if the driver/firmware supports (*ampdu_action)(). 7580 * Otherwise it is in the hands of net80211. 7581 */ 7582 if (lhw->ops->ampdu_action != NULL) { 7583 lhw->ic_recv_action = ic->ic_recv_action; 7584 ic->ic_recv_action = lkpi_ic_recv_action; 7585 lhw->ic_send_action = ic->ic_send_action; 7586 ic->ic_send_action = lkpi_ic_send_action; 7587 7588 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 7589 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 7590 7591 lhw->ic_addba_request = ic->ic_addba_request; 7592 ic->ic_addba_request = lkpi_ic_addba_request; 7593 lhw->ic_addba_response = ic->ic_addba_response; 7594 ic->ic_addba_response = lkpi_ic_addba_response; 7595 lhw->ic_addba_stop = ic->ic_addba_stop; 7596 ic->ic_addba_stop = lkpi_ic_addba_stop; 7597 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 7598 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 7599 7600 lhw->ic_bar_response = ic->ic_bar_response; 7601 ic->ic_bar_response = lkpi_ic_bar_response; 7602 7603 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 7604 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 7605 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 7606 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 7607 } 7608 #endif 7609 7610 lkpi_radiotap_attach(lhw); 7611 7612 /* 7613 * Assign the first possible channel for now; seems Realtek drivers 7614 * expect one. 7615 * Also remember the amount of bands we support and the most rates 7616 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 7617 */ 7618 lhw->supbands = lhw->max_rates = 0; 7619 for (band = 0; band < NUM_NL80211_BANDS; band++) { 7620 struct ieee80211_supported_band *supband; 7621 struct linuxkpi_ieee80211_channel *channels; 7622 7623 supband = hw->wiphy->bands[band]; 7624 if (supband == NULL || supband->n_channels == 0) 7625 continue; 7626 7627 lhw->supbands++; 7628 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 7629 7630 /* If we have a channel, we need to keep counting supbands. */ 7631 if (hw->conf.chandef.chan != NULL) 7632 continue; 7633 7634 channels = supband->channels; 7635 for (i = 0; i < supband->n_channels; i++) { 7636 7637 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 7638 continue; 7639 7640 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 7641 #ifdef LKPI_80211_HT 7642 (ic->ic_flags_ht & IEEE80211_FHT_HT) ? NL80211_CHAN_HT20 : 7643 #endif 7644 NL80211_CHAN_NO_HT); 7645 lhw->dflt_chandef = hw->conf.chandef; 7646 #ifdef LINUXKPI_DEBUG_80211 7647 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 7648 ic_printf(ic, "%s:%d: initialized " 7649 "hw->conf.chandef and dflt_chandef to %p\n", 7650 __func__, __LINE__, &lhw->dflt_chandef); 7651 #endif 7652 break; 7653 } 7654 } 7655 7656 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 7657 7658 /* Make sure we do not support more than net80211 is willing to take. */ 7659 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 7660 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 7661 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 7662 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 7663 } 7664 7665 /* 7666 * The maximum supported bitrates on any band + size for 7667 * DSSS Parameter Set give our per-band IE size. 7668 * SSID is the responsibility of the driver and goes on the side. 7669 * The user specified bits coming from the vap go into the 7670 * "common ies" fields. 7671 */ 7672 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 7673 if (lhw->max_rates > IEEE80211_RATE_SIZE) 7674 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 7675 7676 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 7677 /* 7678 * net80211 does not seem to support the DSSS Parameter Set but 7679 * some of the drivers insert it so calculate the extra fixed 7680 * space in. 7681 */ 7682 lhw->scan_ie_len += 2 + 1; 7683 } 7684 7685 #if defined(LKPI_80211_HT) 7686 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 7687 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 7688 #endif 7689 #if defined(LKPI_80211_VHT) 7690 if (IEEE80211_CONF_VHT(ic)) 7691 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 7692 #endif 7693 7694 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 7695 if (hw->wiphy->max_scan_ie_len > 0) { 7696 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 7697 goto err; 7698 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 7699 } 7700 7701 if (bootverbose) { 7702 if (hw->netdev_features != 0) 7703 ic_printf(ic, "netdev_features %b\n", 7704 hw->netdev_features, NETIF_F_BITS); 7705 ieee80211_announce(ic); 7706 } 7707 7708 return (0); 7709 err: 7710 IMPROVE("TODO FIXME CLEANUP"); 7711 return (-EAGAIN); 7712 } 7713 7714 void 7715 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 7716 { 7717 struct lkpi_hw *lhw; 7718 struct ieee80211com *ic; 7719 7720 lhw = HW_TO_LHW(hw); 7721 ic = lhw->ic; 7722 ieee80211_ifdetach(ic); 7723 } 7724 7725 void 7726 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 7727 enum ieee80211_iface_iter flags, 7728 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 7729 void *arg) 7730 { 7731 struct lkpi_hw *lhw; 7732 struct lkpi_vif *lvif; 7733 struct ieee80211_vif *vif; 7734 bool active, atomic, nin_drv; 7735 7736 lhw = HW_TO_LHW(hw); 7737 7738 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 7739 IEEE80211_IFACE_ITER_RESUME_ALL| 7740 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 7741 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC| 7742 IEEE80211_IFACE_ITER__MTX)) { 7743 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 7744 __func__, flags); 7745 } 7746 7747 if ((flags & IEEE80211_IFACE_ITER__MTX) != 0) 7748 lockdep_assert_wiphy(hw->wiphy); 7749 7750 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 7751 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 7752 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 7753 7754 if (atomic) { 7755 IMPROVE("LKPI_80211_LHW_LVIF_LOCK atomic assume to be rcu?"); 7756 LKPI_80211_LHW_LVIF_LOCK(lhw); 7757 } 7758 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 7759 struct ieee80211vap *vap; 7760 7761 vif = LVIF_TO_VIF(lvif); 7762 7763 /* 7764 * If we want "active" interfaces, we need to distinguish on 7765 * whether the driver knows about them or not to be able to 7766 * handle the "resume" case correctly. Skip the ones the 7767 * driver does not know about. 7768 */ 7769 if (active && !lvif->added_to_drv && 7770 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 7771 continue; 7772 7773 /* 7774 * If we shall skip interfaces not added to the driver do so 7775 * if we haven't yet. 7776 */ 7777 if (nin_drv && !lvif->added_to_drv) 7778 continue; 7779 7780 /* 7781 * Run the iterator function if we are either not asking 7782 * asking for active only or if the VAP is "running". 7783 */ 7784 /* XXX-BZ probably should have state in the lvif as well. */ 7785 vap = LVIF_TO_VAP(lvif); 7786 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 7787 iterfunc(arg, vif->addr, vif); 7788 } 7789 if (atomic) 7790 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 7791 } 7792 7793 static void 7794 lkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 7795 ieee80211_keyix keyix, struct lkpi_sta *lsta, 7796 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 7797 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 7798 void *arg) 7799 { 7800 #ifdef LINUXKPI_DEBUG_80211 7801 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 7802 net80211_vap_printf(LVIF_TO_VAP(VIF_TO_LVIF(vif)), 7803 "%s:%d: lsta %6D added_to_drv %d kc[keyix %u] %p\n", 7804 __func__, __LINE__, LSTA_TO_STA(lsta)->addr, ":", 7805 lsta->added_to_drv, keyix, lsta->kc[keyix]); 7806 #endif 7807 7808 if (!lsta->added_to_drv) 7809 return; 7810 7811 if (lsta->kc[keyix] == NULL) 7812 return; 7813 7814 iterfunc(hw, vif, LSTA_TO_STA(lsta), lsta->kc[keyix], arg); 7815 } 7816 7817 void 7818 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 7819 struct ieee80211_vif *vif, 7820 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 7821 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 7822 void *arg, bool rcu) 7823 { 7824 struct lkpi_sta *lsta; 7825 struct lkpi_vif *lvif; 7826 7827 lvif = VIF_TO_LVIF(vif); 7828 7829 if (rcu) { 7830 rcu_read_lock_held(); /* XXX-BZ is this correct? */ 7831 7832 if (vif == NULL) { 7833 TODO(); 7834 } else { 7835 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 7836 for (ieee80211_keyix keyix = 0; keyix < nitems(lsta->kc); 7837 keyix++) 7838 lkpi_ieee80211_iterate_keys(hw, vif, 7839 keyix, lsta, iterfunc, arg); 7840 } 7841 } 7842 } else { 7843 TODO("Used by suspend/resume; order of keys as installed to " 7844 "firmware is important; we'll need to rewrite some code for that"); 7845 lockdep_assert_wiphy(hw->wiphy); 7846 7847 if (vif == NULL) { 7848 TODO(); 7849 } else { 7850 list_for_each_entry(lsta, &lvif->lsta_list, lsta_list) { 7851 for (ieee80211_keyix keyix = 0; keyix < nitems(lsta->kc); 7852 keyix++) 7853 lkpi_ieee80211_iterate_keys(hw, vif, 7854 keyix, lsta, iterfunc, arg); 7855 } 7856 } 7857 } 7858 } 7859 7860 void 7861 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 7862 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 7863 void *), 7864 void *arg) 7865 { 7866 struct lkpi_hw *lhw; 7867 struct lkpi_chanctx *lchanctx; 7868 7869 KASSERT(hw != NULL && iterfunc != NULL, 7870 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 7871 7872 lhw = HW_TO_LHW(hw); 7873 7874 rcu_read_lock(); 7875 list_for_each_entry_rcu(lchanctx, &lhw->lchanctx_list, entry) { 7876 if (!lchanctx->added_to_drv) 7877 continue; 7878 iterfunc(hw, &lchanctx->chanctx_conf, arg); 7879 } 7880 rcu_read_unlock(); 7881 } 7882 7883 void 7884 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 7885 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 7886 { 7887 struct lkpi_hw *lhw; 7888 struct lkpi_vif *lvif; 7889 struct lkpi_sta *lsta; 7890 struct ieee80211_sta *sta; 7891 7892 KASSERT(hw != NULL && iterfunc != NULL, 7893 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 7894 7895 lhw = HW_TO_LHW(hw); 7896 7897 LKPI_80211_LHW_LVIF_LOCK(lhw); 7898 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 7899 7900 rcu_read_lock(); 7901 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 7902 if (!lsta->added_to_drv) 7903 continue; 7904 sta = LSTA_TO_STA(lsta); 7905 iterfunc(arg, sta); 7906 } 7907 rcu_read_unlock(); 7908 } 7909 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 7910 } 7911 7912 struct linuxkpi_ieee80211_regdomain * 7913 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 7914 { 7915 struct linuxkpi_ieee80211_regdomain *regd; 7916 7917 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 7918 GFP_KERNEL); 7919 return (regd); 7920 } 7921 7922 int 7923 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 7924 struct linuxkpi_ieee80211_regdomain *regd) 7925 { 7926 struct lkpi_hw *lhw; 7927 struct ieee80211com *ic; 7928 struct ieee80211_regdomain *rd; 7929 7930 lhw = wiphy_priv(wiphy); 7931 ic = lhw->ic; 7932 7933 rd = &ic->ic_regdomain; 7934 if (rd->isocc[0] == '\0') { 7935 rd->isocc[0] = regd->alpha2[0]; 7936 rd->isocc[1] = regd->alpha2[1]; 7937 } 7938 7939 TODO(); 7940 /* XXX-BZ finish the rest. */ 7941 7942 return (0); 7943 } 7944 7945 void 7946 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 7947 struct cfg80211_scan_info *info) 7948 { 7949 struct lkpi_hw *lhw; 7950 struct ieee80211com *ic; 7951 struct ieee80211_scan_state *ss; 7952 7953 lhw = wiphy_priv(hw->wiphy); 7954 ic = lhw->ic; 7955 ss = ic->ic_scan; 7956 7957 TRACE_SCAN(ic, "scan_flags %b info { %ju, %6D, aborted %d }", 7958 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 7959 (uintmax_t)info->scan_start_tsf, info->tsf_bssid, ":", 7960 info->aborted); 7961 7962 ieee80211_scan_done(ss->ss_vap); 7963 7964 LKPI_80211_LHW_SCAN_LOCK(lhw); 7965 free(lhw->hw_req, M_LKPI80211); 7966 lhw->hw_req = NULL; 7967 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 7968 /* The wakeup(lhw) will be called from lkpi_ic_scan_end(). */ 7969 /* wakeup(lhw); */ 7970 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 7971 7972 return; 7973 } 7974 7975 static void 7976 lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 7977 { 7978 struct ieee80211_node *ni; 7979 #ifdef LKPI_80211_USE_MTAG 7980 struct m_tag *mtag; 7981 #endif 7982 int ok; 7983 7984 ni = NULL; 7985 #ifdef LKPI_80211_USE_MTAG 7986 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 7987 if (mtag != NULL) { 7988 struct lkpi_80211_tag_rxni *rxni; 7989 7990 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 7991 ni = rxni->ni; 7992 } 7993 #else 7994 if (m->m_pkthdr.PH_loc.ptr != NULL) { 7995 ni = m->m_pkthdr.PH_loc.ptr; 7996 m->m_pkthdr.PH_loc.ptr = NULL; 7997 } 7998 #endif 7999 8000 if (ni != NULL) { 8001 ok = ieee80211_input_mimo(ni, m); 8002 ieee80211_free_node(ni); /* Release the reference. */ 8003 if (ok < 0) 8004 m_freem(m); 8005 } else { 8006 ok = ieee80211_input_mimo_all(lhw->ic, m); 8007 /* mbuf got consumed. */ 8008 } 8009 8010 #ifdef LINUXKPI_DEBUG_80211 8011 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8012 printf("TRACE-RX: %s: handled frame type %#0x\n", __func__, ok); 8013 #endif 8014 } 8015 8016 static void 8017 lkpi_80211_lhw_rxq_task(void *ctx, int pending) 8018 { 8019 struct lkpi_hw *lhw; 8020 struct mbufq mq; 8021 struct mbuf *m; 8022 8023 lhw = ctx; 8024 8025 #ifdef LINUXKPI_DEBUG_80211 8026 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8027 printf("TRACE-RX: %s: lhw %p pending %d mbuf_qlen %d\n", 8028 __func__, lhw, pending, mbufq_len(&lhw->rxq)); 8029 #endif 8030 8031 mbufq_init(&mq, IFQ_MAXLEN); 8032 8033 LKPI_80211_LHW_RXQ_LOCK(lhw); 8034 mbufq_concat(&mq, &lhw->rxq); 8035 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8036 8037 m = mbufq_dequeue(&mq); 8038 while (m != NULL) { 8039 lkpi_80211_lhw_rxq_rx_one(lhw, m); 8040 m = mbufq_dequeue(&mq); 8041 } 8042 } 8043 8044 static void 8045 lkpi_convert_rx_status(struct ieee80211_hw *hw, struct lkpi_sta *lsta, 8046 struct ieee80211_rx_status *rx_status, 8047 struct ieee80211_rx_stats *rx_stats, 8048 uint8_t *rssip) 8049 { 8050 struct ieee80211_supported_band *supband; 8051 struct rate_info rxrate; 8052 int i; 8053 uint8_t rssi; 8054 8055 memset(&rxrate, 0, sizeof(rxrate)); 8056 memset(rx_stats, 0, sizeof(*rx_stats)); 8057 rx_stats->r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 8058 /* XXX-BZ correct hardcoded noise floor, survey data? */ 8059 rx_stats->c_nf = -96; 8060 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 8061 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 8062 rssi = rx_status->signal; 8063 else 8064 rssi = rx_stats->c_nf; 8065 /* 8066 * net80211 signal strength data are in .5 dBm units relative to 8067 * the current noise floor (see comment in ieee80211_node.h). 8068 */ 8069 rssi -= rx_stats->c_nf; 8070 if (rssip != NULL) 8071 *rssip = rssi; 8072 rx_stats->c_rssi = rssi * 2; 8073 rx_stats->r_flags |= IEEE80211_R_BAND; 8074 rx_stats->c_band = 8075 lkpi_nl80211_band_to_net80211_band(rx_status->band); 8076 rx_stats->r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 8077 rx_stats->c_freq = rx_status->freq; 8078 rx_stats->c_ieee = ieee80211_mhz2ieee(rx_stats->c_freq, rx_stats->c_band); 8079 8080 rx_stats->c_rx_tsf = rx_status->mactime; 8081 8082 /* XXX RX_FLAG_MACTIME_IS_RTAP_TS64 ? */ 8083 if ((rx_status->flag & RX_FLAG_MACTIME) == 8084 (RX_FLAG_MACTIME_START|RX_FLAG_MACTIME_END)) { 8085 rx_stats->r_flags |= IEEE80211_R_TSF64; 8086 /* XXX RX_FLAG_MACTIME_PLCP_START ? */ 8087 if ((rx_status->flag & RX_FLAG_MACTIME) == RX_FLAG_MACTIME_START) 8088 rx_stats->r_flags |= IEEE80211_R_TSF_START; 8089 if ((rx_status->flag & RX_FLAG_MACTIME) == RX_FLAG_MACTIME_END) 8090 rx_stats->r_flags |= IEEE80211_R_TSF_END; 8091 /* XXX-BZ if TSF_END will net80211 do the unwind of time? */ 8092 } 8093 8094 if (rx_status->chains != 0) { 8095 int cc; 8096 int8_t crssi; 8097 8098 rx_stats->c_chain = rx_status->chains; 8099 rx_stats->r_flags |= IEEE80211_R_C_CHAIN; 8100 8101 cc = 0; 8102 for (i = 0; i < nitems(rx_status->chain_signal); i++) { 8103 if (!(rx_status->chains & BIT(i))) 8104 continue; 8105 crssi = rx_status->chain_signal[i]; 8106 crssi -= rx_stats->c_nf; 8107 rx_stats->c_rssi_ctl[i] = crssi * 2; 8108 rx_stats->c_rssi_ext[i] = crssi * 2; /* XXX _ext ??? ATH thing? */ 8109 /* We currently only have the global noise floor value. */ 8110 rx_stats->c_nf_ctl[i] = rx_stats->c_nf; 8111 rx_stats->c_nf_ext[i] = rx_stats->c_nf; 8112 cc++; 8113 } 8114 if (cc > 0) 8115 rx_stats->r_flags |= (IEEE80211_R_C_NF | IEEE80211_R_C_RSSI); 8116 } 8117 8118 /* rx_status->antenna */ 8119 8120 /* XXX-NET80211 We are not going to populate c_phytype! */ 8121 8122 switch (rx_status->encoding) { 8123 case RX_ENC_LEGACY: 8124 { 8125 uint32_t legacy = 0; 8126 8127 supband = hw->wiphy->bands[rx_status->band]; 8128 if (supband != NULL) 8129 legacy = supband->bitrates[rx_status->rate_idx].bitrate; 8130 rx_stats->c_rate = legacy; 8131 rxrate.legacy = legacy; 8132 /* Is there a LinuxKPI way of reporting IEEE80211_RX_F_CCK / _OFDM? */ 8133 break; 8134 } 8135 case RX_ENC_HT: 8136 rx_stats->c_pktflags |= IEEE80211_RX_F_HT; 8137 rx_stats->c_rate = rx_status->rate_idx; /* mcs */ 8138 rxrate.flags |= RATE_INFO_FLAGS_MCS; 8139 rxrate.mcs = rx_status->rate_idx; 8140 if ((rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) != 0) { 8141 rx_stats->c_pktflags |= IEEE80211_RX_F_SHORTGI; 8142 rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 8143 } 8144 break; 8145 case RX_ENC_VHT: 8146 rx_stats->c_pktflags |= IEEE80211_RX_F_VHT; 8147 rx_stats->c_rate = rx_status->rate_idx; /* mcs */ 8148 rx_stats->c_vhtnss = rx_status->nss; 8149 rxrate.flags |= RATE_INFO_FLAGS_VHT_MCS; 8150 rxrate.mcs = rx_status->rate_idx; 8151 rxrate.nss = rx_status->nss; 8152 if ((rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) != 0) { 8153 rx_stats->c_pktflags |= IEEE80211_RX_F_SHORTGI; 8154 rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 8155 } 8156 break; 8157 case RX_ENC_HE: 8158 rxrate.flags |= RATE_INFO_FLAGS_HE_MCS; 8159 rxrate.mcs = rx_status->rate_idx; 8160 rxrate.nss = rx_status->nss; 8161 /* XXX TODO */ 8162 TODO("net80211 has not matching encoding for %u", rx_status->encoding); 8163 break; 8164 case RX_ENC_EHT: 8165 rxrate.flags |= RATE_INFO_FLAGS_EHT_MCS; 8166 rxrate.mcs = rx_status->rate_idx; 8167 rxrate.nss = rx_status->nss; 8168 /* XXX TODO */ 8169 TODO("net80211 has not matching encoding for %u", rx_status->encoding); 8170 break; 8171 } 8172 8173 rxrate.bw = rx_status->bw; 8174 switch (rx_status->bw) { 8175 case RATE_INFO_BW_20: 8176 rx_stats->c_width = IEEE80211_RX_FW_20MHZ; 8177 break; 8178 case RATE_INFO_BW_40: 8179 rx_stats->c_width = IEEE80211_RX_FW_40MHZ; 8180 break; 8181 case RATE_INFO_BW_80: 8182 rx_stats->c_width = IEEE80211_RX_FW_80MHZ; 8183 break; 8184 case RATE_INFO_BW_160: 8185 rx_stats->c_width = IEEE80211_RX_FW_160MHZ; 8186 break; 8187 case RATE_INFO_BW_320: 8188 case RATE_INFO_BW_HE_RU: 8189 case RATE_INFO_BW_EHT_RU: 8190 case RATE_INFO_BW_5: 8191 case RATE_INFO_BW_10: 8192 TODO("net80211 has not matching bandwidth for %u", rx_status->bw); 8193 break; 8194 } 8195 8196 if ((rx_status->enc_flags & RX_ENC_FLAG_LDPC) != 0) 8197 rx_stats->c_pktflags |= IEEE80211_RX_F_LDPC; 8198 if ((rx_status->enc_flags & RX_ENC_FLAG_STBC_MASK) != 0) 8199 rx_stats->c_pktflags |= IEEE80211_RX_F_STBC; 8200 8201 /* 8202 * We only need these for LKPI_80211_HW_CRYPTO in theory but in 8203 * case the hardware does something we do not expect always leave 8204 * these enabled. Leaving this commant as documentation for the || 1. 8205 */ 8206 #if defined(LKPI_80211_HW_CRYPTO) || 1 8207 if (rx_status->flag & RX_FLAG_DECRYPTED) { 8208 rx_stats->c_pktflags |= IEEE80211_RX_F_DECRYPTED; 8209 /* Only valid if decrypted is set. */ 8210 if (rx_status->flag & RX_FLAG_PN_VALIDATED) 8211 rx_stats->c_pktflags |= IEEE80211_RX_F_PN_VALIDATED; 8212 } 8213 if (rx_status->flag & RX_FLAG_IV_STRIPPED) 8214 rx_stats->c_pktflags |= IEEE80211_RX_F_IV_STRIP; 8215 if (rx_status->flag & RX_FLAG_ICV_STRIPPED) 8216 rx_stats->c_pktflags |= IEEE80211_RX_F_ICV_STRIP; 8217 if (rx_status->flag & RX_FLAG_MIC_STRIPPED) 8218 rx_stats->c_pktflags |= IEEE80211_RX_F_MIC_STRIP; 8219 if (rx_status->flag & RX_FLAG_MMIC_STRIPPED) 8220 rx_stats->c_pktflags |= IEEE80211_RX_F_MMIC_STRIP; 8221 if (rx_status->flag & RX_FLAG_MMIC_ERROR) 8222 rx_stats->c_pktflags |= IEEE80211_RX_F_FAIL_MMIC; 8223 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 8224 rx_stats->c_pktflags |= IEEE80211_RX_F_FAIL_FCSCRC; 8225 #endif 8226 8227 /* Fill in some sinfo bits to fill gaps not reported byt the driver. */ 8228 if (lsta != NULL) { 8229 memcpy(&lsta->sinfo.rxrate, &rxrate, sizeof(rxrate)); 8230 lsta->sinfo.filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE); 8231 8232 if (rx_status->chains != 0) { 8233 lsta->sinfo.chains = rx_status->chains; 8234 memcpy(lsta->sinfo.chain_signal, rx_status->chain_signal, 8235 sizeof(lsta->sinfo.chain_signal)); 8236 lsta->sinfo.filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL); 8237 } 8238 } 8239 } 8240 8241 #ifdef LINUXKPI_DEBUG_80211 8242 static void 8243 lkpi_rx_log_beacon(struct mbuf *m, struct lkpi_hw *lhw, 8244 struct ieee80211_rx_status *rx_status) 8245 { 8246 struct ieee80211_mgmt *f; 8247 uint8_t *e; 8248 char ssid[IEEE80211_NWID_LEN * 4 + 1]; 8249 8250 memset(ssid, '\0', sizeof(ssid)); 8251 8252 f = mtod(m, struct ieee80211_mgmt *); 8253 e = f->u.beacon.variable; 8254 /* 8255 * Usually SSID is right after the fixed part and for debugging we will 8256 * be fine should we miss it if it is not. 8257 */ 8258 while ((e - (uint8_t *)f) < m->m_len) { 8259 if (*e == IEEE80211_ELEMID_SSID) 8260 break; 8261 e += (2 + *(e + 1)); 8262 } 8263 if (*e == IEEE80211_ELEMID_SSID) { 8264 int i, len; 8265 char *p; 8266 8267 p = ssid; 8268 len = m->m_len - ((e + 2) - (uint8_t *)f); 8269 if (len > *(e + 1)) 8270 len = *(e + 1); 8271 e += 2; 8272 for (i = 0; i < len; i++) { 8273 /* Printable character? */ 8274 if (*e >= 0x20 && *e < 0x7f) { 8275 *p++ = *e++; 8276 } else { 8277 snprintf(p, 5, "%#04x", *e++); 8278 p += 4; 8279 } 8280 } 8281 *p = '\0'; 8282 } 8283 8284 /* We print skb, skb->data, m as we are seeing 'ghost beacons'. */ 8285 TRACE_SCAN_BEACON(lhw->ic, "Beacon: scan_flags %b, band %s freq %u chan %-4d " 8286 "len %d { %#06x %#06x %6D %6D %6D %#06x %ju %u %#06x SSID '%s' }", 8287 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 8288 lkpi_nl80211_band_name(rx_status->band), rx_status->freq, 8289 linuxkpi_ieee80211_frequency_to_channel(rx_status->freq, 0), 8290 m->m_pkthdr.len, f->frame_control, f->duration_id, 8291 f->da, ":", f->sa, ":", f->bssid, ":", f->seq_ctrl, 8292 (uintmax_t)le64_to_cpu(f->u.beacon.timestamp), 8293 le16_to_cpu(f->u.beacon.beacon_int), 8294 le16_to_cpu(f->u.beacon.capab_info), ssid); 8295 } 8296 #endif 8297 8298 /* For %list see comment towards the end of the function. */ 8299 void 8300 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 8301 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 8302 struct list_head *list __unused) 8303 { 8304 struct lkpi_hw *lhw; 8305 struct ieee80211com *ic; 8306 struct mbuf *m; 8307 struct skb_shared_info *shinfo; 8308 struct ieee80211_rx_status *rx_status; 8309 struct ieee80211_rx_stats rx_stats; 8310 struct ieee80211_node *ni; 8311 struct ieee80211vap *vap; 8312 struct ieee80211_hdr *hdr; 8313 struct lkpi_sta *lsta; 8314 int i, offset, ok, error; 8315 uint8_t rssi; 8316 bool is_beacon; 8317 8318 lhw = HW_TO_LHW(hw); 8319 ic = lhw->ic; 8320 8321 if (skb->len < 2) { 8322 /* Need 80211 stats here. */ 8323 counter_u64_add(ic->ic_ierrors, 1); 8324 IMPROVE(); 8325 goto err; 8326 } 8327 8328 /* 8329 * For now do the data copy; we can later improve things. Might even 8330 * have an mbuf backing the skb data then? 8331 */ 8332 m = m_get3(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 8333 if (m == NULL) { 8334 counter_u64_add(ic->ic_ierrors, 1); 8335 goto err; 8336 } 8337 m_copyback(m, 0, skb->tail - skb->data, skb->data); 8338 8339 shinfo = skb_shinfo(skb); 8340 offset = m->m_len; 8341 for (i = 0; i < shinfo->nr_frags; i++) { 8342 m_copyback(m, offset, shinfo->frags[i].size, 8343 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 8344 shinfo->frags[i].offset); 8345 offset += shinfo->frags[i].size; 8346 } 8347 8348 rx_status = IEEE80211_SKB_RXCB(skb); 8349 8350 hdr = (void *)skb->data; 8351 is_beacon = ieee80211_is_beacon(hdr->frame_control); 8352 8353 #ifdef LINUXKPI_DEBUG_80211 8354 /* 8355 * We use the mbuf here as otherwise the variable part might 8356 * be in skb frags. 8357 */ 8358 if (is_beacon && ((linuxkpi_debug_80211 & D80211_SCAN_BEACON) != 0)) 8359 lkpi_rx_log_beacon(m, lhw, rx_status); 8360 8361 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0 && 8362 (linuxkpi_debug_80211 & D80211_SCAN_BEACON) == 0) 8363 goto no_trace_beacons; 8364 8365 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8366 printf("TRACE-RX: %s: skb %p l/d/t-len (%u/%u/%u) " 8367 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 8368 __func__, skb, skb->len, skb->data_len, 8369 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 8370 shinfo, shinfo->nr_frags, 8371 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 8372 8373 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 8374 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 8375 8376 /* Implement a dump_rxcb() !!! */ 8377 if ((linuxkpi_debug_80211 & D80211_TRACE_RX) != 0 || 8378 (linuxkpi_debug_80211 & D80211_SCAN_BEACON) != 0) 8379 printf("TRACE-RX: %s: RXCB: %ju %ju %u, %b, %u, %#0x, %#0x, " 8380 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 8381 __func__, 8382 (uintmax_t)rx_status->boottime_ns, 8383 (uintmax_t)rx_status->mactime, 8384 rx_status->device_timestamp, 8385 rx_status->flag, IEEE80211_RX_STATUS_FLAGS_BITS, 8386 rx_status->freq, 8387 rx_status->bw, 8388 rx_status->encoding, 8389 rx_status->ampdu_reference, 8390 rx_status->band, 8391 rx_status->chains, 8392 rx_status->chain_signal[0], 8393 rx_status->chain_signal[1], 8394 rx_status->chain_signal[2], 8395 rx_status->chain_signal[3], 8396 rx_status->signal, 8397 rx_status->enc_flags, 8398 rx_status->he_dcm, 8399 rx_status->he_gi, 8400 rx_status->he_ru, 8401 rx_status->zero_length_psdu_type, 8402 rx_status->nss, 8403 rx_status->rate_idx); 8404 no_trace_beacons: 8405 #endif 8406 8407 lsta = NULL; 8408 if (sta != NULL) { 8409 lsta = STA_TO_LSTA(sta); 8410 ni = ieee80211_ref_node(lsta->ni); 8411 } else { 8412 struct ieee80211_frame_min *wh; 8413 8414 wh = mtod(m, struct ieee80211_frame_min *); 8415 ni = ieee80211_find_rxnode(ic, wh); 8416 if (ni != NULL) 8417 lsta = ni->ni_drv_data; 8418 } 8419 8420 rssi = 0; 8421 lkpi_convert_rx_status(hw, lsta, rx_status, &rx_stats, &rssi); 8422 8423 ok = ieee80211_add_rx_params(m, &rx_stats); 8424 if (ok == 0) { 8425 m_freem(m); 8426 counter_u64_add(ic->ic_ierrors, 1); 8427 goto err; 8428 } 8429 8430 if (ni != NULL) 8431 vap = ni->ni_vap; 8432 else 8433 /* 8434 * XXX-BZ can we improve this by looking at the frame hdr 8435 * or other meta-data passed up? 8436 */ 8437 vap = TAILQ_FIRST(&ic->ic_vaps); 8438 8439 #ifdef LINUXKPI_DEBUG_80211 8440 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8441 printf("TRACE-RX: %s: sta %p lsta %p state %d ni %p vap %p%s\n", 8442 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 8443 ni, vap, is_beacon ? " beacon" : ""); 8444 #endif 8445 8446 if (ni != NULL && vap != NULL && is_beacon && 8447 rx_status->device_timestamp > 0 && 8448 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 8449 struct lkpi_vif *lvif; 8450 struct ieee80211_vif *vif; 8451 struct ieee80211_frame *wh; 8452 8453 lvif = VAP_TO_LVIF(vap); 8454 vif = LVIF_TO_VIF(lvif); 8455 8456 wh = mtod(m, struct ieee80211_frame *); 8457 if (!IEEE80211_ADDR_EQ(wh->i_addr2, vif->cfg.ap_addr)) 8458 goto skip_device_ts; 8459 8460 IMPROVE("TIMING_BEACON_ONLY?"); 8461 /* mac80211 specific (not net80211) so keep it here. */ 8462 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 8463 /* 8464 * net80211 should take care of the other information (sync_tsf, 8465 * sync_dtim_count) as otherwise we need to parse the beacon. 8466 */ 8467 skip_device_ts: 8468 ; 8469 } 8470 8471 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 8472 ieee80211_radiotap_active_vap(vap)) { 8473 struct lkpi_radiotap_rx_hdr *rtap; 8474 8475 rtap = &lhw->rtap_rx; 8476 rtap->wr_tsft = rx_status->device_timestamp; 8477 rtap->wr_flags = 0; 8478 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 8479 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 8480 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 8481 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 8482 #if 0 /* .. or it does not given we strip it below. */ 8483 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 8484 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 8485 #endif 8486 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 8487 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 8488 rtap->wr_rate = 0; 8489 IMPROVE(); 8490 /* XXX TODO status->encoding / rate_index / bw */ 8491 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 8492 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 8493 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 8494 rtap->wr_dbm_antsignal = rssi; 8495 rtap->wr_dbm_antnoise = rx_stats.c_nf; 8496 } 8497 8498 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 8499 m_adj(m, -IEEE80211_CRC_LEN); 8500 8501 #if 0 8502 if (list != NULL) { 8503 /* 8504 * Normally this would be queued up and delivered by 8505 * netif_receive_skb_list(), napi_gro_receive(), or the like. 8506 * See mt76::mac80211.c as only current possible consumer. 8507 */ 8508 IMPROVE("we simply pass the packet to net80211 to deal with."); 8509 } 8510 #endif 8511 8512 /* Attach meta-information to the mbuf for the deferred RX path. */ 8513 if (ni != NULL) { 8514 #ifdef LKPI_80211_USE_MTAG 8515 struct m_tag *mtag; 8516 struct lkpi_80211_tag_rxni *rxni; 8517 8518 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 8519 sizeof(*rxni), IEEE80211_M_NOWAIT); 8520 if (mtag == NULL) { 8521 m_freem(m); 8522 counter_u64_add(ic->ic_ierrors, 1); 8523 goto err; 8524 } 8525 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 8526 rxni->ni = ni; /* We hold a reference. */ 8527 m_tag_prepend(m, mtag); 8528 #else 8529 m->m_pkthdr.PH_loc.ptr = ni; /* We hold a reference. */ 8530 #endif 8531 } 8532 8533 LKPI_80211_LHW_RXQ_LOCK(lhw); 8534 if (lhw->rxq_stopped) { 8535 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8536 m_freem(m); 8537 counter_u64_add(ic->ic_ierrors, 1); 8538 goto err; 8539 } 8540 8541 error = mbufq_enqueue(&lhw->rxq, m); 8542 if (error != 0) { 8543 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8544 m_freem(m); 8545 counter_u64_add(ic->ic_ierrors, 1); 8546 #ifdef LINUXKPI_DEBUG_80211 8547 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8548 ic_printf(ni->ni_ic, "%s: mbufq_enqueue failed: %d\n", 8549 __func__, error); 8550 #endif 8551 goto err; 8552 } 8553 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 8554 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8555 8556 IMPROVE(); 8557 8558 err: 8559 /* The skb is ours so we can free it :-) */ 8560 kfree_skb(skb); 8561 } 8562 8563 uint8_t 8564 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 8565 { 8566 const struct ieee80211_frame *wh; 8567 uint8_t tid; 8568 8569 /* Linux seems to assume this is a QOS-Data-Frame */ 8570 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 8571 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 8572 hdr->frame_control)); 8573 8574 wh = (const struct ieee80211_frame *)hdr; 8575 tid = ieee80211_gettid(wh); 8576 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 8577 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 8578 8579 return (tid); 8580 } 8581 8582 /* -------------------------------------------------------------------------- */ 8583 8584 static void 8585 lkpi_wiphy_work(struct work_struct *work) 8586 { 8587 struct lkpi_wiphy *lwiphy; 8588 struct wiphy *wiphy; 8589 struct wiphy_work *wk; 8590 8591 lwiphy = container_of(work, struct lkpi_wiphy, wwk); 8592 wiphy = LWIPHY_TO_WIPHY(lwiphy); 8593 8594 wiphy_lock(wiphy); 8595 8596 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8597 wk = list_first_entry_or_null(&lwiphy->wwk_list, struct wiphy_work, entry); 8598 /* If there is nothing we do nothing. */ 8599 if (wk == NULL) { 8600 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8601 wiphy_unlock(wiphy); 8602 return; 8603 } 8604 list_del_init(&wk->entry); 8605 8606 /* More work to do? */ 8607 if (!list_empty(&lwiphy->wwk_list)) 8608 schedule_work(work); 8609 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8610 8611 /* Finally call the (*wiphy_work_fn)() function. */ 8612 wk->fn(wiphy, wk); 8613 8614 wiphy_unlock(wiphy); 8615 } 8616 8617 void 8618 linuxkpi_wiphy_work_queue(struct wiphy *wiphy, struct wiphy_work *wwk) 8619 { 8620 struct lkpi_wiphy *lwiphy; 8621 8622 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8623 8624 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8625 /* Do not double-queue. */ 8626 if (list_empty(&wwk->entry)) 8627 list_add_tail(&wwk->entry, &lwiphy->wwk_list); 8628 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8629 8630 /* 8631 * See how ieee80211_queue_work() work continues in Linux or if things 8632 * migrate here over time? 8633 * Use a system queue from linux/workqueue.h for now. 8634 */ 8635 queue_work(system_wq, &lwiphy->wwk); 8636 } 8637 8638 void 8639 linuxkpi_wiphy_work_cancel(struct wiphy *wiphy, struct wiphy_work *wwk) 8640 { 8641 struct lkpi_wiphy *lwiphy; 8642 8643 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8644 8645 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8646 /* Only cancel if queued. */ 8647 if (!list_empty(&wwk->entry)) 8648 list_del_init(&wwk->entry); 8649 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8650 } 8651 8652 void 8653 linuxkpi_wiphy_work_flush(struct wiphy *wiphy, struct wiphy_work *wwk) 8654 { 8655 struct lkpi_wiphy *lwiphy; 8656 struct wiphy_work *wk; 8657 8658 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8659 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8660 /* If wwk is unset, flush everything; called when wiphy is shut down. */ 8661 if (wwk != NULL && list_empty(&wwk->entry)) { 8662 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8663 return; 8664 } 8665 8666 while (!list_empty(&lwiphy->wwk_list)) { 8667 8668 wk = list_first_entry(&lwiphy->wwk_list, struct wiphy_work, 8669 entry); 8670 list_del_init(&wk->entry); 8671 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8672 wk->fn(wiphy, wk); 8673 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8674 if (wk == wwk) 8675 break; 8676 } 8677 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8678 } 8679 8680 void 8681 lkpi_wiphy_delayed_work_timer(struct timer_list *tl) 8682 { 8683 struct wiphy_delayed_work *wdwk; 8684 8685 wdwk = timer_container_of(wdwk, tl, timer); 8686 wiphy_work_queue(wdwk->wiphy, &wdwk->work); 8687 } 8688 8689 void 8690 linuxkpi_wiphy_delayed_work_queue(struct wiphy *wiphy, 8691 struct wiphy_delayed_work *wdwk, unsigned long delay) 8692 { 8693 if (delay == 0) { 8694 /* Run right away. */ 8695 del_timer(&wdwk->timer); 8696 wiphy_work_queue(wiphy, &wdwk->work); 8697 } else { 8698 wdwk->wiphy = wiphy; 8699 mod_timer(&wdwk->timer, jiffies + delay); 8700 } 8701 } 8702 8703 void 8704 linuxkpi_wiphy_delayed_work_cancel(struct wiphy *wiphy, 8705 struct wiphy_delayed_work *wdwk) 8706 { 8707 del_timer_sync(&wdwk->timer); 8708 wiphy_work_cancel(wiphy, &wdwk->work); 8709 } 8710 8711 void 8712 linuxkpi_wiphy_delayed_work_flush(struct wiphy *wiphy, 8713 struct wiphy_delayed_work *wdwk) 8714 { 8715 lockdep_assert_held(&wiphy->mtx); 8716 8717 del_timer_sync(&wdwk->timer); 8718 wiphy_work_flush(wiphy, &wdwk->work); 8719 } 8720 8721 /* -------------------------------------------------------------------------- */ 8722 8723 struct wiphy * 8724 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 8725 { 8726 struct lkpi_wiphy *lwiphy; 8727 struct wiphy *wiphy; 8728 8729 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 8730 if (lwiphy == NULL) 8731 return (NULL); 8732 lwiphy->ops = ops; 8733 8734 LKPI_80211_LWIPHY_WORK_LOCK_INIT(lwiphy); 8735 INIT_LIST_HEAD(&lwiphy->wwk_list); 8736 INIT_WORK(&lwiphy->wwk, lkpi_wiphy_work); 8737 8738 wiphy = LWIPHY_TO_WIPHY(lwiphy); 8739 8740 INIT_LIST_HEAD(&wiphy->wdev_list); 8741 mutex_init(&wiphy->mtx); 8742 TODO(); 8743 8744 return (wiphy); 8745 } 8746 8747 void 8748 linuxkpi_wiphy_free(struct wiphy *wiphy) 8749 { 8750 struct lkpi_wiphy *lwiphy; 8751 8752 if (wiphy == NULL) 8753 return; 8754 8755 linuxkpi_wiphy_work_flush(wiphy, NULL); 8756 mutex_destroy(&wiphy->mtx); 8757 8758 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8759 LKPI_80211_LWIPHY_WORK_LOCK_DESTROY(lwiphy); 8760 8761 kfree(lwiphy); 8762 } 8763 8764 static void 8765 lkpi_wiphy_band_annotate(struct wiphy *wiphy) 8766 { 8767 int band; 8768 8769 for (band = 0; band < NUM_NL80211_BANDS; band++) { 8770 struct ieee80211_supported_band *supband; 8771 int i; 8772 8773 supband = wiphy->bands[band]; 8774 if (supband == NULL) 8775 continue; 8776 8777 switch (band) { 8778 case NL80211_BAND_2GHZ: 8779 case NL80211_BAND_5GHZ: 8780 break; 8781 default: 8782 #ifdef LINUXKPI_DEBUG_80211 8783 IMPROVE("band %d(%s) not yet supported", 8784 band, lkpi_nl80211_band_name(band)); 8785 /* For bands added here, also check lkpi_lsta_alloc(). */ 8786 #endif 8787 continue; 8788 } 8789 8790 /* Band bitrates are times 10; e.g., 55 is 5.5Mbit/s. */ 8791 for (i = 0; i < supband->n_bitrates; i++) { 8792 switch (band) { 8793 case NL80211_BAND_2GHZ: 8794 switch (supband->bitrates[i].bitrate) { 8795 case 110: 8796 case 55: 8797 case 20: 8798 case 10: 8799 supband->bitrates[i].flags |= 8800 IEEE80211_RATE_MANDATORY_B; 8801 /* FALLTHROUGH */ 8802 /* 11g only */ 8803 case 240: 8804 case 120: 8805 case 60: 8806 supband->bitrates[i].flags |= 8807 IEEE80211_RATE_MANDATORY_G; 8808 break; 8809 } 8810 break; 8811 case NL80211_BAND_5GHZ: 8812 switch (supband->bitrates[i].bitrate) { 8813 case 240: 8814 case 120: 8815 case 60: 8816 supband->bitrates[i].flags |= 8817 IEEE80211_RATE_MANDATORY_A; 8818 break; 8819 } 8820 break; 8821 } 8822 TRACE_RATES("band %d bitrate[%d/%u] %u flags %#010x", 8823 band, i, supband->n_bitrates, 8824 supband->bitrates[i].bitrate, 8825 supband->bitrates[i].flags); 8826 } 8827 } 8828 } 8829 8830 int 8831 linuxkpi_80211_wiphy_register(struct wiphy *wiphy) 8832 { 8833 TODO("Lots of checks and initialization"); 8834 8835 lkpi_wiphy_band_annotate(wiphy); 8836 8837 return (0); 8838 } 8839 8840 static uint32_t 8841 lkpi_cfg80211_calculate_bitrate_ht(struct rate_info *rate) 8842 { 8843 TODO("cfg80211_calculate_bitrate_ht"); 8844 return (rate->legacy); 8845 } 8846 8847 static uint32_t 8848 lkpi_cfg80211_calculate_bitrate_vht(struct rate_info *rate) 8849 { 8850 TODO("cfg80211_calculate_bitrate_vht"); 8851 return (rate->legacy); 8852 } 8853 8854 uint32_t 8855 linuxkpi_cfg80211_calculate_bitrate(struct rate_info *rate) 8856 { 8857 8858 /* Beware: order! */ 8859 if (rate->flags & RATE_INFO_FLAGS_MCS) 8860 return (lkpi_cfg80211_calculate_bitrate_ht(rate)); 8861 8862 if (rate->flags & RATE_INFO_FLAGS_VHT_MCS) 8863 return (lkpi_cfg80211_calculate_bitrate_vht(rate)); 8864 8865 IMPROVE("HE/EHT/..."); 8866 8867 return (rate->legacy); 8868 } 8869 8870 uint32_t 8871 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 8872 enum nl80211_band band) 8873 { 8874 8875 switch (band) { 8876 case NL80211_BAND_2GHZ: 8877 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 8878 break; 8879 case NL80211_BAND_5GHZ: 8880 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 8881 break; 8882 default: 8883 /* XXX abort, retry, error, panic? */ 8884 break; 8885 } 8886 8887 return (0); 8888 } 8889 8890 uint32_t 8891 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 8892 { 8893 8894 return (ieee80211_mhz2ieee(freq, 0)); 8895 } 8896 8897 #if 0 8898 static struct lkpi_sta * 8899 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 8900 { 8901 struct lkpi_sta *lsta, *temp; 8902 8903 rcu_read_lock(); 8904 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 8905 if (lsta->ni == ni) { 8906 rcu_read_unlock(); 8907 return (lsta); 8908 } 8909 } 8910 rcu_read_unlock(); 8911 8912 return (NULL); 8913 } 8914 #endif 8915 8916 struct ieee80211_sta * 8917 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 8918 { 8919 struct lkpi_vif *lvif; 8920 struct lkpi_sta *lsta; 8921 struct ieee80211_sta *sta; 8922 8923 lvif = VIF_TO_LVIF(vif); 8924 8925 rcu_read_lock(); 8926 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 8927 sta = LSTA_TO_STA(lsta); 8928 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 8929 rcu_read_unlock(); 8930 return (sta); 8931 } 8932 } 8933 rcu_read_unlock(); 8934 return (NULL); 8935 } 8936 8937 struct ieee80211_sta * 8938 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 8939 const uint8_t *addr, const uint8_t *ourvifaddr) 8940 { 8941 struct lkpi_hw *lhw; 8942 struct lkpi_vif *lvif; 8943 struct lkpi_sta *lsta; 8944 struct ieee80211_vif *vif; 8945 struct ieee80211_sta *sta; 8946 8947 lhw = wiphy_priv(hw->wiphy); 8948 sta = NULL; 8949 8950 LKPI_80211_LHW_LVIF_LOCK(lhw); 8951 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 8952 8953 /* XXX-BZ check our address from the vif. */ 8954 8955 vif = LVIF_TO_VIF(lvif); 8956 if (ourvifaddr != NULL && 8957 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 8958 continue; 8959 sta = linuxkpi_ieee80211_find_sta(vif, addr); 8960 if (sta != NULL) 8961 break; 8962 } 8963 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 8964 8965 if (sta != NULL) { 8966 lsta = STA_TO_LSTA(sta); 8967 if (!lsta->added_to_drv) 8968 return (NULL); 8969 } 8970 8971 return (sta); 8972 } 8973 8974 struct sk_buff * 8975 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 8976 struct ieee80211_txq *txq) 8977 { 8978 struct lkpi_txq *ltxq; 8979 struct lkpi_vif *lvif; 8980 struct sk_buff *skb; 8981 8982 IMPROVE("wiphy_lock? or assert?"); 8983 skb = NULL; 8984 ltxq = TXQ_TO_LTXQ(txq); 8985 ltxq->flags |= LKPI_TXQ_SEEN_DEQUEUE; 8986 8987 if ((ltxq->flags & (LKPI_TXQ_STOPPED|LKPI_TXQ_STOPPED_BA)) != 0) 8988 goto stopped; 8989 8990 lvif = VIF_TO_LVIF(ltxq->txq.vif); 8991 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 8992 ltxq->flags |= LKPI_TXQ_STOPPED; 8993 goto stopped; 8994 } 8995 8996 IMPROVE("hw(TX_FRAG_LIST)"); 8997 8998 LKPI_80211_LTXQ_LOCK(ltxq); 8999 skb = skb_dequeue(<xq->skbq); 9000 if (skb != NULL) 9001 ltxq->frms_dequeued++; 9002 LKPI_80211_LTXQ_UNLOCK(ltxq); 9003 9004 stopped: 9005 return (skb); 9006 } 9007 9008 void 9009 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 9010 unsigned long *frame_cnt, unsigned long *byte_cnt) 9011 { 9012 struct lkpi_txq *ltxq; 9013 struct sk_buff *skb; 9014 unsigned long fc, bc; 9015 9016 ltxq = TXQ_TO_LTXQ(txq); 9017 9018 fc = bc = 0; 9019 LKPI_80211_LTXQ_LOCK(ltxq); 9020 skb_queue_walk(<xq->skbq, skb) { 9021 fc++; 9022 bc += skb->len; 9023 } 9024 LKPI_80211_LTXQ_UNLOCK(ltxq); 9025 if (frame_cnt) 9026 *frame_cnt = fc; 9027 if (byte_cnt) 9028 *byte_cnt = bc; 9029 9030 /* Validate that this is doing the correct thing. */ 9031 /* Should we keep track on en/dequeue? */ 9032 IMPROVE(); 9033 } 9034 9035 /* 9036 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 9037 * The latter tries to derive the success status from the info flags 9038 * passed back from the driver. rawx_mit() saves the ni on the m and the 9039 * m on the skb for us to be able to give feedback to net80211. 9040 */ 9041 static void 9042 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 9043 int status) 9044 { 9045 struct ieee80211_node *ni; 9046 struct mbuf *m; 9047 9048 if (skb == NULL) 9049 return; 9050 9051 m = skb->m; 9052 skb->m = NULL; 9053 9054 if (m != NULL) { 9055 ni = m->m_pkthdr.PH_loc.ptr; 9056 /* Status: 0 is ok, != 0 is error. */ 9057 ieee80211_tx_complete(ni, m, status); 9058 /* ni & mbuf were consumed. */ 9059 } 9060 } 9061 9062 void 9063 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 9064 int status) 9065 { 9066 9067 _lkpi_ieee80211_free_txskb(hw, skb, status); 9068 kfree_skb(skb); 9069 } 9070 9071 void 9072 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 9073 struct ieee80211_tx_status *txstat) 9074 { 9075 struct sk_buff *skb; 9076 struct ieee80211_tx_info *info, _info = { }; 9077 struct ieee80211_ratectl_tx_status txs; 9078 struct ieee80211_node *ni; 9079 int status; 9080 9081 skb = txstat->skb; 9082 if (skb != NULL && skb->m != NULL) { 9083 struct mbuf *m; 9084 9085 m = skb->m; 9086 ni = m->m_pkthdr.PH_loc.ptr; 9087 memset(&txs, 0, sizeof(txs)); 9088 } else { 9089 ni = NULL; 9090 } 9091 9092 /* 9093 * If we have no info information on tx, set info to an all-zero struct 9094 * to make the code (and debug output) simpler. 9095 */ 9096 info = txstat->info; 9097 if (info == NULL) 9098 info = &_info; 9099 if (info->flags & IEEE80211_TX_STAT_ACK) { 9100 status = 0; /* No error. */ 9101 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 9102 } else { 9103 status = 1; 9104 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 9105 } 9106 9107 if (ni != NULL) { 9108 txs.pktlen = skb->len; 9109 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 9110 if (info->status.rates[0].count > 1) { 9111 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 9112 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 9113 } 9114 #if 0 /* Unused in net80211 currently. */ 9115 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 9116 txs.final_rate = info->status.rates[0].idx; 9117 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 9118 #endif 9119 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 9120 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 9121 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 9122 } 9123 9124 IMPROVE("only update rate if needed but that requires us to get a proper rate from mo_sta_statistics"); 9125 ieee80211_ratectl_tx_complete(ni, &txs); 9126 ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 9127 9128 #ifdef LINUXKPI_DEBUG_80211 9129 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 9130 printf("TX-RATE: %s: long_retries %d\n", __func__, 9131 txs.long_retries); 9132 } 9133 #endif 9134 } 9135 9136 #ifdef LINUXKPI_DEBUG_80211 9137 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 9138 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %b " 9139 "band %u hw_queue %u tx_time_est %d : " 9140 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 9141 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 9142 "tx_time %u flags %b " 9143 "status_driver_data [ %p %p ]\n", 9144 __func__, hw, skb, status, info->flags, IEEE80211_TX_INFO_FLAGS, 9145 info->band, info->hw_queue, info->tx_time_est, 9146 info->status.rates[0].idx, info->status.rates[0].count, 9147 info->status.rates[0].flags, 9148 info->status.rates[1].idx, info->status.rates[1].count, 9149 info->status.rates[1].flags, 9150 info->status.rates[2].idx, info->status.rates[2].count, 9151 info->status.rates[2].flags, 9152 info->status.rates[3].idx, info->status.rates[3].count, 9153 info->status.rates[3].flags, 9154 info->status.ack_signal, info->status.ampdu_ack_len, 9155 info->status.ampdu_len, info->status.antenna, 9156 info->status.tx_time, info->status.flags, IEEE80211_TX_STATUS_FLAGS, 9157 info->status.status_driver_data[0], 9158 info->status.status_driver_data[1]); 9159 #endif 9160 9161 if (txstat->free_list) { 9162 _lkpi_ieee80211_free_txskb(hw, skb, status); 9163 if (skb != NULL) 9164 list_add_tail(&skb->list, txstat->free_list); 9165 } else { 9166 linuxkpi_ieee80211_free_txskb(hw, skb, status); 9167 } 9168 } 9169 9170 void 9171 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 9172 { 9173 struct ieee80211_tx_status status; 9174 9175 memset(&status, 0, sizeof(status)); 9176 status.info = IEEE80211_SKB_CB(skb); 9177 status.skb = skb; 9178 /* sta, n_rates, rates, free_list? */ 9179 9180 ieee80211_tx_status_ext(hw, &status); 9181 } 9182 9183 /* 9184 * This is an internal bandaid for the moment for the way we glue 9185 * skbs and mbufs together for TX. Once we have skbs backed by 9186 * mbufs this should go away. 9187 * This is a public function but kept on the private KPI (lkpi_) 9188 * and is not exposed by a header file. 9189 */ 9190 static void 9191 lkpi_ieee80211_free_skb_mbuf(void *p) 9192 { 9193 struct ieee80211_node *ni; 9194 struct mbuf *m; 9195 9196 if (p == NULL) 9197 return; 9198 9199 m = (struct mbuf *)p; 9200 M_ASSERTPKTHDR(m); 9201 9202 ni = m->m_pkthdr.PH_loc.ptr; 9203 m->m_pkthdr.PH_loc.ptr = NULL; 9204 if (ni != NULL) 9205 ieee80211_free_node(ni); 9206 m_freem(m); 9207 } 9208 9209 void 9210 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 9211 struct delayed_work *w, int delay) 9212 { 9213 struct lkpi_hw *lhw; 9214 9215 /* Need to make sure hw is in a stable (non-suspended) state. */ 9216 IMPROVE(); 9217 9218 lhw = HW_TO_LHW(hw); 9219 queue_delayed_work(lhw->workq, w, delay); 9220 } 9221 9222 void 9223 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 9224 struct work_struct *w) 9225 { 9226 struct lkpi_hw *lhw; 9227 9228 /* Need to make sure hw is in a stable (non-suspended) state. */ 9229 IMPROVE(); 9230 9231 lhw = HW_TO_LHW(hw); 9232 queue_work(lhw->workq, w); 9233 } 9234 9235 struct sk_buff * 9236 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, const uint8_t *addr, 9237 const uint8_t *ssid, size_t ssid_len, size_t tailroom) 9238 { 9239 struct sk_buff *skb; 9240 struct ieee80211_frame *wh; 9241 uint8_t *p; 9242 size_t len; 9243 9244 len = sizeof(*wh); 9245 len += 2 + ssid_len; 9246 9247 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 9248 if (skb == NULL) 9249 return (NULL); 9250 9251 skb_reserve(skb, hw->extra_tx_headroom); 9252 9253 wh = skb_put_zero(skb, sizeof(*wh)); 9254 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 9255 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 9256 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 9257 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 9258 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 9259 9260 p = skb_put(skb, 2 + ssid_len); 9261 *p++ = IEEE80211_ELEMID_SSID; 9262 *p++ = ssid_len; 9263 if (ssid_len > 0) 9264 memcpy(p, ssid, ssid_len); 9265 9266 return (skb); 9267 } 9268 9269 struct sk_buff * 9270 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 9271 struct ieee80211_vif *vif) 9272 { 9273 struct lkpi_vif *lvif; 9274 struct ieee80211vap *vap; 9275 struct sk_buff *skb; 9276 struct ieee80211_frame_pspoll *psp; 9277 uint16_t v; 9278 9279 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 9280 if (skb == NULL) 9281 return (NULL); 9282 9283 skb_reserve(skb, hw->extra_tx_headroom); 9284 9285 lvif = VIF_TO_LVIF(vif); 9286 vap = LVIF_TO_VAP(lvif); 9287 9288 psp = skb_put_zero(skb, sizeof(*psp)); 9289 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 9290 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 9291 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 9292 memcpy(&psp->i_aid, &v, sizeof(v)); 9293 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 9294 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 9295 9296 return (skb); 9297 } 9298 9299 struct sk_buff * 9300 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 9301 struct ieee80211_vif *vif, int linkid, bool qos) 9302 { 9303 struct sk_buff *skb; 9304 struct ieee80211_frame *nullf; 9305 9306 IMPROVE("linkid"); 9307 9308 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 9309 if (skb == NULL) 9310 return (NULL); 9311 9312 skb_reserve(skb, hw->extra_tx_headroom); 9313 9314 nullf = skb_put_zero(skb, sizeof(*nullf)); 9315 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 9316 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 9317 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 9318 9319 /* XXX-BZ if link is given, this is different. */ 9320 IEEE80211_ADDR_COPY(nullf->i_addr1, vif->cfg.ap_addr); 9321 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 9322 IEEE80211_ADDR_COPY(nullf->i_addr3, vif->cfg.ap_addr); 9323 9324 return (skb); 9325 } 9326 9327 struct wireless_dev * 9328 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 9329 { 9330 struct lkpi_vif *lvif; 9331 9332 lvif = VIF_TO_LVIF(vif); 9333 return (&lvif->wdev); 9334 } 9335 9336 void 9337 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 9338 { 9339 struct lkpi_vif *lvif; 9340 struct ieee80211vap *vap; 9341 enum ieee80211_state nstate; 9342 int arg; 9343 9344 lvif = VIF_TO_LVIF(vif); 9345 vap = LVIF_TO_VAP(lvif); 9346 9347 /* 9348 * Go to init; otherwise we need to elaborately check state and 9349 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 9350 * Let the statemachine handle all neccessary changes. 9351 */ 9352 nstate = IEEE80211_S_INIT; 9353 arg = 0; /* Not a valid reason. */ 9354 9355 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s (synched %d, assoc %d " 9356 "beacons %d dtim_period %d)\n", __func__, vif, vap, 9357 ieee80211_state_name[vap->iv_state], 9358 lvif->lvif_bss_synched, vif->cfg.assoc, lvif->beacons, 9359 vif->bss_conf.dtim_period); 9360 ieee80211_new_state(vap, nstate, arg); 9361 } 9362 9363 void 9364 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 9365 { 9366 struct lkpi_vif *lvif; 9367 struct ieee80211vap *vap; 9368 9369 lvif = VIF_TO_LVIF(vif); 9370 vap = LVIF_TO_VAP(lvif); 9371 9372 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s (synched %d, assoc %d " 9373 "beacons %d dtim_period %d)\n", __func__, vif, vap, 9374 ieee80211_state_name[vap->iv_state], 9375 lvif->lvif_bss_synched, vif->cfg.assoc, lvif->beacons, 9376 vif->bss_conf.dtim_period); 9377 ieee80211_beacon_miss(vap->iv_ic); 9378 } 9379 9380 /* -------------------------------------------------------------------------- */ 9381 9382 void 9383 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 9384 { 9385 struct lkpi_hw *lhw; 9386 struct lkpi_vif *lvif; 9387 struct ieee80211_vif *vif; 9388 int ac_count, ac; 9389 9390 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 9391 __func__, qnum, hw->queues, hw)); 9392 9393 lhw = wiphy_priv(hw->wiphy); 9394 9395 /* See lkpi_ic_vap_create(). */ 9396 if (hw->queues >= IEEE80211_NUM_ACS) 9397 ac_count = IEEE80211_NUM_ACS; 9398 else 9399 ac_count = 1; 9400 9401 LKPI_80211_LHW_LVIF_LOCK(lhw); 9402 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 9403 9404 vif = LVIF_TO_VIF(lvif); 9405 for (ac = 0; ac < ac_count; ac++) { 9406 IMPROVE_TXQ("LOCKING"); 9407 if (qnum == vif->hw_queue[ac]) { 9408 #ifdef LINUXKPI_DEBUG_80211 9409 /* 9410 * For now log this to better understand 9411 * how this is supposed to work. 9412 */ 9413 if (lvif->hw_queue_stopped[ac] && 9414 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 9415 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 9416 "lvif %p vif %p ac %d qnum %d already " 9417 "stopped\n", __func__, __LINE__, 9418 lhw, hw, lvif, vif, ac, qnum); 9419 #endif 9420 lvif->hw_queue_stopped[ac] = true; 9421 } 9422 } 9423 } 9424 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 9425 } 9426 9427 void 9428 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 9429 { 9430 int i; 9431 9432 IMPROVE_TXQ("Locking; do we need further info?"); 9433 for (i = 0; i < hw->queues; i++) 9434 linuxkpi_ieee80211_stop_queue(hw, i); 9435 } 9436 9437 9438 static void 9439 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 9440 { 9441 struct lkpi_hw *lhw; 9442 struct lkpi_vif *lvif; 9443 struct lkpi_sta *lsta; 9444 int ac_count, ac, tid; 9445 9446 /* See lkpi_ic_vap_create(). */ 9447 if (hw->queues >= IEEE80211_NUM_ACS) 9448 ac_count = IEEE80211_NUM_ACS; 9449 else 9450 ac_count = 1; 9451 9452 lhw = wiphy_priv(hw->wiphy); 9453 9454 IMPROVE_TXQ("Locking"); 9455 LKPI_80211_LHW_LVIF_LOCK(lhw); 9456 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 9457 struct ieee80211_vif *vif; 9458 9459 vif = LVIF_TO_VIF(lvif); 9460 for (ac = 0; ac < ac_count; ac++) { 9461 9462 if (hwq == vif->hw_queue[ac]) { 9463 9464 /* XXX-BZ what about software scan? */ 9465 9466 #ifdef LINUXKPI_DEBUG_80211 9467 /* 9468 * For now log this to better understand 9469 * how this is supposed to work. 9470 */ 9471 if (!lvif->hw_queue_stopped[ac] && 9472 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 9473 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 9474 "lvif %p vif %p ac %d hw_q not stopped\n", 9475 __func__, __LINE__, 9476 lhw, hw, lvif, vif, ac); 9477 #endif 9478 lvif->hw_queue_stopped[ac] = false; 9479 9480 rcu_read_lock(); 9481 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 9482 struct ieee80211_sta *sta; 9483 9484 sta = LSTA_TO_STA(lsta); 9485 for (tid = 0; tid < nitems(sta->txq); tid++) { 9486 struct lkpi_txq *ltxq; 9487 9488 if (sta->txq[tid] == NULL) 9489 continue; 9490 9491 if (sta->txq[tid]->ac != ac) 9492 continue; 9493 9494 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 9495 if ((ltxq->flags & LKPI_TXQ_STOPPED) == 0) 9496 continue; 9497 9498 ltxq->flags &= ~LKPI_TXQ_STOPPED; 9499 9500 if (!skb_queue_empty(<xq->skbq)) 9501 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid], false); 9502 } 9503 } 9504 rcu_read_unlock(); 9505 } 9506 } 9507 } 9508 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 9509 } 9510 9511 static void 9512 lkpi_ieee80211_wake_queues_locked(struct ieee80211_hw *hw) 9513 { 9514 int i; 9515 9516 IMPROVE_TXQ("Is this all/enough here?"); 9517 for (i = 0; i < hw->queues; i++) 9518 lkpi_ieee80211_wake_queues(hw, i); 9519 } 9520 9521 void 9522 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 9523 { 9524 struct lkpi_hw *lhw; 9525 unsigned long flags; 9526 9527 lhw = HW_TO_LHW(hw); 9528 9529 spin_lock_irqsave(&lhw->txq_lock, flags); 9530 lkpi_ieee80211_wake_queues_locked(hw); 9531 spin_unlock_irqrestore(&lhw->txq_lock, flags); 9532 } 9533 9534 void 9535 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 9536 { 9537 struct lkpi_hw *lhw; 9538 unsigned long flags; 9539 9540 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 9541 __func__, qnum, hw->queues, hw)); 9542 9543 lhw = HW_TO_LHW(hw); 9544 9545 spin_lock_irqsave(&lhw->txq_lock, flags); 9546 lkpi_ieee80211_wake_queues(hw, qnum); 9547 spin_unlock_irqrestore(&lhw->txq_lock, flags); 9548 } 9549 9550 void 9551 linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 9552 struct ieee80211_txq *txq) 9553 { 9554 struct lkpi_hw *lhw; 9555 9556 lhw = HW_TO_LHW(hw); 9557 9558 LKPI_80211_LHW_TXQ_LOCK(lhw); 9559 ieee80211_txq_schedule_start(hw, txq->ac); 9560 do { 9561 struct lkpi_txq *ltxq; 9562 struct ieee80211_txq *ntxq; 9563 struct ieee80211_tx_control control; 9564 struct sk_buff *skb; 9565 9566 ntxq = ieee80211_next_txq(hw, txq->ac); 9567 if (ntxq == NULL) 9568 break; 9569 ltxq = TXQ_TO_LTXQ(ntxq); 9570 9571 memset(&control, 0, sizeof(control)); 9572 control.sta = ntxq->sta; 9573 do { 9574 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 9575 if (skb == NULL) 9576 break; 9577 ltxq->frms_tx++; 9578 lkpi_80211_mo_tx(hw, &control, skb); 9579 } while(1); 9580 9581 ieee80211_return_txq(hw, ntxq, false); 9582 } while (1); 9583 ieee80211_txq_schedule_end(hw, txq->ac); 9584 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 9585 } 9586 9587 /* -------------------------------------------------------------------------- */ 9588 9589 /* This is just hardware queues. */ 9590 /* 9591 * Being called from the driver thus use _bh() locking. 9592 */ 9593 void 9594 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 9595 { 9596 struct lkpi_hw *lhw; 9597 9598 lhw = HW_TO_LHW(hw); 9599 9600 if (ac >= IEEE80211_NUM_ACS) { 9601 ic_printf(lhw->ic, "%s: ac %u out of bounds.\n", __func__, ac); 9602 return; 9603 } 9604 9605 spin_lock_bh(&lhw->txq_scheduled_lock[ac]); 9606 IMPROVE("check AIRTIME_FAIRNESS"); 9607 if (++lhw->txq_generation[ac] == 0) 9608 lhw->txq_generation[ac]++; 9609 spin_unlock_bh(&lhw->txq_scheduled_lock[ac]); 9610 } 9611 9612 struct ieee80211_txq * 9613 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 9614 { 9615 struct lkpi_hw *lhw; 9616 struct ieee80211_txq *txq; 9617 struct lkpi_txq *ltxq; 9618 9619 lhw = HW_TO_LHW(hw); 9620 txq = NULL; 9621 9622 if (ac >= IEEE80211_NUM_ACS) { 9623 ic_printf(lhw->ic, "%s: ac %u out of bounds.\n", __func__, ac); 9624 return (NULL); 9625 } 9626 9627 spin_lock_bh(&lhw->txq_scheduled_lock[ac]); 9628 9629 /* Check that we are scheduled. */ 9630 if (lhw->txq_generation[ac] == 0) 9631 goto out; 9632 9633 ltxq = TAILQ_FIRST(&lhw->txq_scheduled[ac]); 9634 if (ltxq == NULL) 9635 goto out; 9636 if (ltxq->txq_generation == lhw->txq_generation[ac]) 9637 goto out; 9638 if ((ltxq->flags & (LKPI_TXQ_STOPPED|LKPI_TXQ_STOPPED_BA)) != 0) 9639 goto out; 9640 9641 IMPROVE("check AIRTIME_FAIRNESS"); 9642 9643 TAILQ_REMOVE(&lhw->txq_scheduled[ac], ltxq, txq_entry); 9644 ltxq->txq_generation = lhw->txq_generation[ac]; 9645 txq = <xq->txq; 9646 TAILQ_ELEM_INIT(ltxq, txq_entry); 9647 9648 out: 9649 spin_unlock_bh(&lhw->txq_scheduled_lock[ac]); 9650 9651 return (txq); 9652 } 9653 9654 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 9655 struct ieee80211_txq *txq, bool withoutpkts) 9656 { 9657 struct lkpi_hw *lhw; 9658 struct lkpi_txq *ltxq; 9659 bool ltxq_empty; 9660 9661 ltxq = TXQ_TO_LTXQ(txq); 9662 9663 /* Only schedule if work to do or asked to anyway. */ 9664 LKPI_80211_LTXQ_LOCK(ltxq); 9665 ltxq_empty = skb_queue_empty(<xq->skbq); 9666 LKPI_80211_LTXQ_UNLOCK(ltxq); 9667 if (!withoutpkts && ltxq_empty) 9668 goto out; 9669 9670 lhw = HW_TO_LHW(hw); 9671 spin_lock_bh(&lhw->txq_scheduled_lock[txq->ac]); 9672 /* 9673 * Make sure we do not double-schedule. We do this by checking tqe_prev, 9674 * the previous entry in our tailq. tqe_prev is always valid if this entry 9675 * is queued, tqe_next may be NULL if this is the only element in the list. 9676 */ 9677 if (ltxq->txq_entry.tqe_prev != NULL) 9678 goto unlock; 9679 9680 TAILQ_INSERT_TAIL(&lhw->txq_scheduled[txq->ac], ltxq, txq_entry); 9681 unlock: 9682 spin_unlock_bh(&lhw->txq_scheduled_lock[txq->ac]); 9683 9684 out: 9685 return; 9686 } 9687 9688 /* -------------------------------------------------------------------------- */ 9689 9690 struct lkpi_cfg80211_bss { 9691 u_int refcnt; 9692 struct cfg80211_bss bss; 9693 }; 9694 9695 struct lkpi_cfg80211_get_bss_iter_lookup { 9696 struct wiphy *wiphy; 9697 struct linuxkpi_ieee80211_channel *chan; 9698 const uint8_t *bssid; 9699 const uint8_t *ssid; 9700 size_t ssid_len; 9701 enum ieee80211_bss_type bss_type; 9702 enum ieee80211_privacy privacy; 9703 9704 /* 9705 * Something to store a copy of the result as the net80211 scan cache 9706 * is not refoucnted so a scan entry might go away any time. 9707 */ 9708 bool match; 9709 struct cfg80211_bss *bss; 9710 }; 9711 9712 static void 9713 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 9714 { 9715 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 9716 size_t ielen; 9717 9718 lookup = arg; 9719 9720 /* Do not try to find another match. */ 9721 if (lookup->match) 9722 return; 9723 9724 /* Nothing to store result. */ 9725 if (lookup->bss == NULL) 9726 return; 9727 9728 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 9729 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 9730 /* We have no idea what to compare to as the drivers only request ANY */ 9731 return; 9732 } 9733 9734 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 9735 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 9736 /* We have no idea what to compare to as the drivers only request ANY */ 9737 return; 9738 } 9739 9740 if (lookup->chan != NULL) { 9741 struct linuxkpi_ieee80211_channel *chan; 9742 9743 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 9744 se->se_chan->ic_freq); 9745 if (chan == NULL || chan != lookup->chan) 9746 return; 9747 } 9748 9749 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 9750 return; 9751 9752 if (lookup->ssid) { 9753 if (lookup->ssid_len != se->se_ssid[1] || 9754 se->se_ssid[1] == 0) 9755 return; 9756 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 9757 return; 9758 } 9759 9760 ielen = se->se_ies.len; 9761 9762 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 9763 M_LKPI80211, M_NOWAIT | M_ZERO); 9764 if (lookup->bss->ies == NULL) 9765 return; 9766 9767 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 9768 lookup->bss->ies->len = ielen; 9769 if (ielen) 9770 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 9771 9772 lookup->match = true; 9773 } 9774 9775 struct cfg80211_bss * 9776 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 9777 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 9778 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 9779 { 9780 struct lkpi_cfg80211_bss *lbss; 9781 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 9782 struct lkpi_hw *lhw; 9783 struct ieee80211vap *vap; 9784 9785 lhw = wiphy_priv(wiphy); 9786 9787 /* Let's hope we can alloc. */ 9788 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 9789 if (lbss == NULL) { 9790 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 9791 return (NULL); 9792 } 9793 9794 lookup.wiphy = wiphy; 9795 lookup.chan = chan; 9796 lookup.bssid = bssid; 9797 lookup.ssid = ssid; 9798 lookup.ssid_len = ssid_len; 9799 lookup.bss_type = bss_type; 9800 lookup.privacy = privacy; 9801 lookup.match = false; 9802 lookup.bss = &lbss->bss; 9803 9804 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 9805 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 9806 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 9807 if (!lookup.match) { 9808 free(lbss, M_LKPI80211); 9809 return (NULL); 9810 } 9811 9812 refcount_init(&lbss->refcnt, 1); 9813 return (&lbss->bss); 9814 } 9815 9816 void 9817 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 9818 { 9819 struct lkpi_cfg80211_bss *lbss; 9820 9821 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 9822 9823 /* Free everything again on refcount ... */ 9824 if (refcount_release(&lbss->refcnt)) { 9825 free(lbss->bss.ies, M_LKPI80211); 9826 free(lbss, M_LKPI80211); 9827 } 9828 } 9829 9830 void 9831 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 9832 { 9833 struct lkpi_hw *lhw; 9834 struct ieee80211com *ic; 9835 struct ieee80211vap *vap; 9836 9837 lhw = wiphy_priv(wiphy); 9838 ic = lhw->ic; 9839 9840 /* 9841 * If we haven't called ieee80211_ifattach() yet 9842 * or there is no VAP, there are no scans to flush. 9843 */ 9844 if (ic == NULL || 9845 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 9846 return; 9847 9848 /* Should only happen on the current one? Not seen it late enough. */ 9849 IEEE80211_LOCK(ic); 9850 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 9851 ieee80211_scan_flush(vap); 9852 IEEE80211_UNLOCK(ic); 9853 } 9854 9855 /* -------------------------------------------------------------------------- */ 9856 9857 static bool 9858 cfg80211_chan_def_are_same(struct cfg80211_chan_def *cd1, 9859 struct cfg80211_chan_def *cd2) 9860 { 9861 9862 if (cd1 == cd2) 9863 return (true); 9864 9865 if (cd1 == NULL || cd2 == NULL) 9866 return (false); 9867 9868 if (cd1->chan != cd2->chan) 9869 return (false); 9870 9871 if (cd1->width != cd2->width) 9872 return (false); 9873 9874 if (cd1->center_freq1 != cd2->center_freq1) 9875 return (false); 9876 9877 if (cd1->center_freq2 != cd2->center_freq2) 9878 return (false); 9879 9880 if (cd1->punctured != cd2->punctured) 9881 return (false); 9882 9883 return (true); 9884 } 9885 9886 /* 9887 * hw->conf get initialized/set in various places for us: 9888 * - linuxkpi_ieee80211_alloc_hw(): flags 9889 * - linuxkpi_ieee80211_ifattach(): chandef 9890 * - lkpi_ic_vap_create(): listen_interval 9891 * - lkpi_ic_set_channel(): chandef, flags 9892 */ 9893 9894 static int 9895 lkpi_80211_update_chandef(struct ieee80211_hw *hw, 9896 struct ieee80211_chanctx_conf *new) 9897 { 9898 struct lkpi_hw *lhw; 9899 struct cfg80211_chan_def *cd; 9900 uint32_t changed; 9901 int error; 9902 bool same; 9903 9904 lockdep_assert_wiphy(hw->wiphy); 9905 9906 lhw = HW_TO_LHW(hw); 9907 if (!lhw->emulate_chanctx) 9908 return (0); 9909 9910 if (new == NULL || new->def.chan == NULL) { 9911 /* 9912 * In case of remove "new" is NULL, we need to get us to some 9913 * basic channel width but we'd also need to set the channel 9914 * accordingly somewhere. 9915 * The same is true if we are scanning in which case the 9916 * scan_chandef should have a channel set. 9917 */ 9918 if (lhw->scan_chandef.chan != NULL) { 9919 #ifdef LINUXKPI_DEBUG_80211 9920 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9921 ic_printf(lhw->ic, "%s:%d: using scan_chandef %p\n", 9922 __func__, __LINE__, &lhw->scan_chandef); 9923 #endif 9924 cd = &lhw->scan_chandef; 9925 } else { 9926 #ifdef LINUXKPI_DEBUG_80211 9927 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9928 ic_printf(lhw->ic, "%s:%d: using dflt_chandef %p\n", 9929 __func__, __LINE__, &lhw->dflt_chandef); 9930 #endif 9931 cd = &lhw->dflt_chandef; 9932 } 9933 } else { 9934 #ifdef LINUXKPI_DEBUG_80211 9935 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9936 ic_printf(lhw->ic, "%s:%d: using chanctx %p chandef %p\n", 9937 __func__, __LINE__, new, &new->def); 9938 #endif 9939 cd = &new->def; 9940 } 9941 9942 changed = 0; 9943 same = cfg80211_chan_def_are_same(cd, &hw->conf.chandef); 9944 if (!same) { 9945 /* Copy; the chan pointer is fine and will stay valid. */ 9946 hw->conf.chandef = *cd; 9947 changed |= IEEE80211_CONF_CHANGE_CHANNEL; 9948 } 9949 IMPROVE("IEEE80211_CONF_CHANGE_PS, IEEE80211_CONF_CHANGE_POWER"); 9950 9951 #ifdef LINUXKPI_DEBUG_80211 9952 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9953 ic_printf(lhw->ic, "%s:%d: chanctx %p { %u } cd %p { %u } " 9954 "hw->conf.chandef %p { %u %d %u %u %u }, " 9955 "changed %#04x same %d\n", 9956 __func__, __LINE__, 9957 new, (new != NULL && new->def.chan != NULL) ? 9958 new->def.chan->center_freq : 0, 9959 cd, cd->chan->center_freq, 9960 &hw->conf.chandef, hw->conf.chandef.chan->center_freq, 9961 hw->conf.chandef.width, 9962 hw->conf.chandef.center_freq1, 9963 hw->conf.chandef.center_freq2, 9964 hw->conf.chandef.punctured, 9965 changed, same); 9966 #endif 9967 9968 if (changed == 0) 9969 return (0); 9970 9971 error = lkpi_80211_mo_config(hw, changed); 9972 return (error); 9973 } 9974 9975 int 9976 ieee80211_emulate_add_chanctx(struct ieee80211_hw *hw, 9977 struct ieee80211_chanctx_conf *chanctx_conf) 9978 { 9979 int error; 9980 9981 lockdep_assert_wiphy(hw->wiphy); 9982 9983 #ifdef LINUXKPI_DEBUG_80211 9984 if ((linuxkpi_debug_80211 & D80211_TRACE) != 0) { 9985 struct lkpi_hw *lhw; 9986 9987 lhw = HW_TO_LHW(hw); 9988 ic_printf(lhw->ic, "%s:%d: chanctx_conf %p\n", 9989 __func__, __LINE__, chanctx_conf); 9990 } 9991 #endif 9992 9993 hw->conf.radar_enabled = chanctx_conf->radar_enabled; 9994 error = lkpi_80211_update_chandef(hw, chanctx_conf); 9995 return (error); 9996 } 9997 9998 void 9999 ieee80211_emulate_remove_chanctx(struct ieee80211_hw *hw, 10000 struct ieee80211_chanctx_conf *chanctx_conf __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 = false; 10016 lkpi_80211_update_chandef(hw, NULL); 10017 } 10018 10019 void 10020 ieee80211_emulate_change_chanctx(struct ieee80211_hw *hw, 10021 struct ieee80211_chanctx_conf *chanctx_conf, uint32_t changed __unused) 10022 { 10023 10024 lockdep_assert_wiphy(hw->wiphy); 10025 10026 #ifdef LINUXKPI_DEBUG_80211 10027 if ((linuxkpi_debug_80211 & D80211_TRACE) != 0) { 10028 struct lkpi_hw *lhw; 10029 10030 lhw = HW_TO_LHW(hw); 10031 ic_printf(lhw->ic, "%s:%d: chanctx_conf %p\n", 10032 __func__, __LINE__, chanctx_conf); 10033 } 10034 #endif 10035 10036 hw->conf.radar_enabled = chanctx_conf->radar_enabled; 10037 lkpi_80211_update_chandef(hw, chanctx_conf); 10038 } 10039 10040 int 10041 ieee80211_emulate_switch_vif_chanctx(struct ieee80211_hw *hw, 10042 struct ieee80211_vif_chanctx_switch *vifs, int n_vifs, 10043 enum ieee80211_chanctx_switch_mode mode __unused) 10044 { 10045 struct ieee80211_chanctx_conf *chanctx_conf; 10046 int error; 10047 10048 lockdep_assert_wiphy(hw->wiphy); 10049 10050 /* Sanity check. */ 10051 if (n_vifs <= 0) 10052 return (-EINVAL); 10053 if (vifs == NULL || vifs[0].new_ctx == NULL) 10054 return (-EINVAL); 10055 10056 /* 10057 * What to do if n_vifs > 1? 10058 * Does that make sense for drivers not supporting chanctx? 10059 */ 10060 hw->conf.radar_enabled = vifs[0].new_ctx->radar_enabled; 10061 chanctx_conf = vifs[0].new_ctx; 10062 error = lkpi_80211_update_chandef(hw, chanctx_conf); 10063 return (error); 10064 } 10065 10066 /* -------------------------------------------------------------------------- */ 10067 /* LinuxKPI 802.11 PM. */ 10068 int 10069 lkpi_80211_suspend(struct ieee80211com *ic, pm_message_t state) 10070 { 10071 struct lkpi_hw *lhw; 10072 struct ieee80211_hw *hw; 10073 int error; 10074 10075 lhw = ic->ic_softc; 10076 hw = LHW_TO_HW(lhw); 10077 error = 0; 10078 10079 /* Check: 10080 * - device_set_wakeup_capable() / device_can_wakeup() 10081 * - hw->wiphy->wowlan to be non-NULL, if so contents. 10082 * - hw->wiphy->max_sched_scan_ssids (rtw88) 10083 */ 10084 if ((lkpi_suspend_type & 0x2) != 0) { 10085 struct cfg80211_wowlan wowlan; 10086 10087 IMPROVE("various options for WoWLAN"); 10088 memset(&wowlan, 0, sizeof(wowlan)); 10089 wiphy_lock(hw->wiphy); 10090 error = lkpi_80211_mo_suspend(hw, &wowlan); 10091 wiphy_unlock(hw->wiphy); 10092 if (error == EOPNOTSUPP) 10093 error = 0; 10094 } 10095 if ((lkpi_suspend_type & 0x1) != 0) { 10096 struct lkpi_vif *lvif; 10097 10098 ieee80211_suspend_all(ic); 10099 10100 wiphy_lock(hw->wiphy); 10101 /* 10102 * At the end of this net80211 will run a task to call 10103 * (*ic_parent)() which is entirely unhelpful as we do not 10104 * know when it will happen. So deal with it here. 10105 */ 10106 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 10107 lkpi_80211_mo_remove_interface(hw, LVIF_TO_VIF(lvif)); 10108 } 10109 10110 if ((lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) != 0) 10111 lkpi_80211_mo_stop(hw, true); 10112 wiphy_unlock(hw->wiphy); 10113 } 10114 10115 if (error < 0) 10116 error = -error; 10117 10118 if (error != 0) 10119 ic_printf(ic, "%s: SUSPEND FAILED: %d\n", __func__, error); 10120 10121 return (error); 10122 } 10123 10124 int 10125 lkpi_80211_resume(struct ieee80211com *ic) 10126 { 10127 struct lkpi_hw *lhw; 10128 struct ieee80211_hw *hw; 10129 int error; 10130 bool hw_scan_running; 10131 10132 lhw = ic->ic_softc; 10133 hw = LHW_TO_HW(lhw); 10134 error = 0; 10135 10136 /* 10137 * Ongoing HW scans during suspend are a problem on resume. 10138 * Be verbose about that. 10139 */ 10140 LKPI_80211_LHW_SCAN_LOCK(lhw); 10141 hw_scan_running = (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) != 0; 10142 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 10143 if (hw_scan_running) 10144 ic_printf(ic, "%s: WARNING: ongoing hw scan on resume!\n", __func__); 10145 10146 if ((lkpi_suspend_type & 0x1) != 0) { 10147 struct lkpi_vif *lvif; 10148 10149 wiphy_lock(hw->wiphy); 10150 error = lkpi_80211_mo_start(hw); 10151 if (error != 0 && error != EEXIST) { 10152 ic_printf(ic, "%s: mo_start failed: %d\n", 10153 __func__, error); 10154 wiphy_unlock(hw->wiphy); 10155 goto err; 10156 } 10157 10158 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 10159 error = lkpi_80211_mo_add_interface(hw, LVIF_TO_VIF(lvif)); 10160 if (error != 0) { 10161 struct ieee80211vap *vap; 10162 10163 vap = LVIF_TO_VAP(lvif); 10164 ic_printf(ic, "%s: mo_add_interface %s failed: %d\n", 10165 __func__, if_name(vap->iv_ifp), error); 10166 wiphy_unlock(hw->wiphy); 10167 goto err; 10168 } 10169 } 10170 wiphy_unlock(hw->wiphy); 10171 10172 ieee80211_resume_all(ic); 10173 } 10174 10175 if ((lkpi_suspend_type & 0x2) != 0) { 10176 wiphy_lock(hw->wiphy); 10177 error = lkpi_80211_mo_resume(hw); 10178 wiphy_unlock(hw->wiphy); 10179 if (error == EOPNOTSUPP) 10180 error = 0; 10181 } 10182 10183 err: 10184 if (error < 0) 10185 error = -error; 10186 10187 return (error); 10188 } 10189 10190 /* -------------------------------------------------------------------------- */ 10191 MODULE_VERSION(linuxkpi_wlan, 1); 10192 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 10193 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 10194