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 lockdep_assert_wiphy(hw->wiphy); 2723 2724 if (ieee80211_vif_is_mld(vif)) { 2725 TODO("This likely needs a subset only; split up into 3 parts."); 2726 } 2727 2728 /* Nothing to do? */ 2729 if (bss_changed == 0) 2730 return; 2731 2732 /* 2733 * If the vif is not known to the driver there is nothing to notifiy for. 2734 * We MUST NOT check for !lvif_bss_synched here (the reasonable it seems) 2735 * as we need to execute the update(s) or we will have follow-up issues. 2736 */ 2737 lvif = VIF_TO_LVIF(vif); 2738 if (!lvif->added_to_drv) 2739 return; 2740 2741 /* 2742 * With the advent of MLO bss_conf got split up into vif and link 2743 * change notfications, while historically it was one. 2744 * We now need to support all possible models. 2745 */ 2746 vif_cfg_bits = bss_changed & BSS_CHANGED_VIF_CFG_BITS; 2747 if (vif_cfg_bits != 0) 2748 lkpi_80211_mo_vif_cfg_changed(hw, vif, vif_cfg_bits, false); 2749 2750 link_info_bits = bss_changed & ~(BSS_CHANGED_VIF_CFG_BITS); 2751 if (link_info_bits != 0) 2752 lkpi_80211_mo_link_info_changed(hw, vif, &vif->bss_conf, 2753 link_info_bits, 0, false); 2754 2755 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2756 } 2757 2758 /* -------------------------------------------------------------------------- */ 2759 2760 static int 2761 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2762 { 2763 return (0); 2764 } 2765 2766 /* UP1 */ 2767 static int 2768 lkpi_sta_init_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2769 { 2770 return (lkpi_sta_state_do_nada(vap, nstate, arg)); 2771 } 2772 2773 /* UP2 */ 2774 static int 2775 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2776 { 2777 struct linuxkpi_ieee80211_channel *chan; 2778 struct cfg80211_chan_def chandef; 2779 struct ieee80211_chanctx_conf *chanctx_conf; 2780 struct lkpi_hw *lhw; 2781 struct ieee80211_hw *hw; 2782 struct lkpi_vif *lvif; 2783 struct ieee80211_vif *vif; 2784 struct ieee80211_node *ni; 2785 struct lkpi_sta *lsta; 2786 enum ieee80211_bss_changed bss_changed; 2787 struct ieee80211_prep_tx_info prep_tx_info; 2788 uint32_t changed; 2789 int error; 2790 bool synched, can_ht; 2791 2792 /* 2793 * In here we use vap->iv_bss until lvif->lvif_bss is set. 2794 * For all later (STATE >= AUTH) functions we need to use the lvif 2795 * cache which will be tracked even through (*iv_update_bss)(). 2796 */ 2797 2798 if (vap->iv_bss == NULL) { 2799 ic_printf(vap->iv_ic, "%s: no iv_bss for vap %p\n", __func__, vap); 2800 return (EINVAL); 2801 } 2802 /* 2803 * Keep the ni alive locally. In theory (and practice) iv_bss can change 2804 * once we unlock here. This is due to net80211 allowing state changes 2805 * and new join1() despite having an active node as well as due to 2806 * the fact that the iv_bss can be swapped under the hood in (*iv_update_bss). 2807 */ 2808 ni = ieee80211_ref_node(vap->iv_bss); 2809 if (ni->ni_chan == NULL || ni->ni_chan == IEEE80211_CHAN_ANYC) { 2810 ic_printf(vap->iv_ic, "%s: no channel set for iv_bss ni %p " 2811 "on vap %p\n", __func__, ni, vap); 2812 ieee80211_free_node(ni); /* Error handling for the local ni. */ 2813 return (EINVAL); 2814 } 2815 2816 lhw = vap->iv_ic->ic_softc; 2817 chan = lkpi_find_lkpi80211_chan(lhw, ni->ni_chan); 2818 if (chan == NULL) { 2819 ic_printf(vap->iv_ic, "%s: failed to get LKPI channel from " 2820 "iv_bss ni %p on vap %p\n", __func__, ni, vap); 2821 ieee80211_free_node(ni); /* Error handling for the local ni. */ 2822 return (ESRCH); 2823 } 2824 2825 hw = LHW_TO_HW(lhw); 2826 lvif = VAP_TO_LVIF(vap); 2827 vif = LVIF_TO_VIF(lvif); 2828 2829 LKPI_80211_LVIF_LOCK(lvif); 2830 /* XXX-BZ KASSERT later? */ 2831 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) { 2832 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2833 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2834 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2835 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2836 lvif->lvif_bss_synched); 2837 LKPI_80211_LVIF_UNLOCK(lvif); 2838 ieee80211_free_node(ni); /* Error handling for the local ni. */ 2839 return (EBUSY); 2840 } 2841 LKPI_80211_LVIF_UNLOCK(lvif); 2842 2843 IEEE80211_UNLOCK(vap->iv_ic); 2844 wiphy_lock(hw->wiphy); 2845 2846 /* Add chanctx (or if exists, change it). */ 2847 chanctx_conf = lkpi_get_chanctx_conf(hw, vif); 2848 2849 KASSERT(ni->ni_chan != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC, 2850 ("%s:%d: ni %p ni_chan %p\n", __func__, __LINE__, ni, ni->ni_chan)); 2851 2852 #ifdef LKPI_80211_HT 2853 can_ht = (vap->iv_ic->ic_flags_ht & IEEE80211_FHT_HT) != 0; 2854 #else 2855 can_ht = false; 2856 #endif 2857 lkpi_init_chandef(vap->iv_ic, &chandef, chan, ni->ni_chan, can_ht); 2858 hw->conf.radar_enabled = 2859 ((chan->flags & IEEE80211_CHAN_RADAR) != 0) ? true : false; 2860 hw->conf.chandef = chandef; 2861 vif->bss_conf.chanreq.oper = hw->conf.chandef; 2862 #ifdef LINUXKPI_DEBUG_80211 2863 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 2864 ic_printf(vap->iv_ic, "%s:%d: hw->conf.chandef %p = chandef %p = " 2865 "vif->bss_conf.chanreq.oper %p\n", __func__, __LINE__, 2866 &hw->conf.chandef, &chandef, &vif->bss_conf.chanreq.oper); 2867 #endif 2868 2869 changed = lkpi_init_chanctx_conf(hw, &chandef, chanctx_conf); 2870 2871 /* Responder ... */ 2872 2873 /* Set bss info (bss_info_changed). */ 2874 bss_changed = 0; 2875 IEEE80211_ADDR_COPY(vif->cfg.ap_addr, ni->ni_bssid); 2876 vif->bss_conf.bssid = ni->ni_bssid; 2877 bss_changed |= BSS_CHANGED_BSSID; 2878 vif->bss_conf.txpower = ni->ni_txpower; 2879 bss_changed |= BSS_CHANGED_TXPOWER; 2880 vif->cfg.idle = false; 2881 bss_changed |= BSS_CHANGED_IDLE; 2882 2883 lvif->beacons = 0; 2884 /* Should almost assert it is this. */ 2885 vif->cfg.assoc = false; 2886 vif->cfg.aid = 0; 2887 2888 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2889 2890 error = lkpi_set_chanctx_conf(hw, vif, chanctx_conf, changed, true); 2891 if (error != 0) 2892 goto out; 2893 2894 IMPROVE("update radiotap chan fields too"); 2895 2896 /* RATES */ 2897 IMPROVE("bss info: not all needs to come now and rates are missing"); 2898 bss_changed |= lkpi_sta_supp_rates(hw, vif, ni, NULL); 2899 if (ieee80211_hw_check(hw, HAS_RATE_CONTROL)) 2900 lkpi_80211_mo_set_bitrate_mask(hw, vif, &lvif->br_mask); 2901 TODO("cfg80211_tid_config WHERE?"); 2902 2903 lkpi_bss_info_change(hw, vif, bss_changed); 2904 2905 /* 2906 * Given ni and lsta are 1:1 from alloc to free we can assert that 2907 * ni always has lsta data attach despite net80211 node swapping 2908 * under the hoods. 2909 */ 2910 KASSERT(ni->ni_drv_data != NULL, ("%s: ni %p ni_drv_data %p\n", 2911 __func__, ni, ni->ni_drv_data)); 2912 lsta = ni->ni_drv_data; 2913 2914 /* Insert the [l]sta into the list of known stations. */ 2915 list_add_tail(&lsta->lsta_list, &lvif->lsta_list); 2916 2917 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 2918 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2919 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 2920 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 2921 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2922 if (error != 0) { 2923 IMPROVE("do we need to undo the chan ctx?"); 2924 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2925 "failed: %d\n", __func__, __LINE__, error); 2926 goto out; 2927 } 2928 #if 0 2929 lsta->added_to_drv = true; /* mo manages. */ 2930 #endif 2931 2932 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2933 2934 #if 0 2935 /* 2936 * Wakeup all queues now that sta is there so we have as much time to 2937 * possibly prepare the queue in the driver to be ready for the 1st 2938 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 2939 * is no guarantee or way to check. 2940 * XXX-BZ and by now we know that this does not work on all drivers 2941 * for all queues. 2942 */ 2943 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 2944 #endif 2945 2946 /* Start mgd_prepare_tx. */ 2947 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2948 prep_tx_info.duration = PREP_TX_INFO_DURATION; /* SAE */ 2949 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 2950 prep_tx_info.link_id = 0; 2951 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2952 lsta->in_mgd = true; 2953 2954 /* 2955 * What is going to happen next: 2956 * - <twiddle> .. we should end up in "auth_to_assoc" 2957 * - event_callback 2958 * - update sta_state (NONE to AUTH) 2959 * - mgd_complete_tx 2960 * (ideally we'd do that on a callback for something else ...) 2961 */ 2962 2963 wiphy_unlock(hw->wiphy); 2964 IEEE80211_LOCK(vap->iv_ic); 2965 2966 LKPI_80211_LVIF_LOCK(lvif); 2967 /* Re-check given (*iv_update_bss) could have happened while we were unlocked. */ 2968 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL || 2969 lsta->ni != vap->iv_bss) 2970 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2971 "lvif_bss->ni %p synched %d, ni %p lsta %p\n", __func__, __LINE__, 2972 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2973 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2974 lvif->lvif_bss_synched, ni, lsta); 2975 2976 /* 2977 * Reference the "ni" for caching the lsta/ni in lvif->lvif_bss. 2978 * Given we cache lsta we use lsta->ni instead of ni here (even though 2979 * lsta->ni == ni) to be distinct from the rest of the code where we do 2980 * assume that ni == vap->iv_bss which it may or may not be. 2981 * So do NOT use iv_bss here anymore as that may have diverged from our 2982 * function local ni already while ic was unlocked and would lead to 2983 * inconsistencies. Go and see if we lost a race and do not update 2984 * lvif_bss_synched in that case. 2985 */ 2986 ieee80211_ref_node(lsta->ni); 2987 lvif->lvif_bss = lsta; 2988 if (lsta->ni == vap->iv_bss) { 2989 lvif->lvif_bss_synched = synched = true; 2990 } else { 2991 /* Set to un-synched no matter what. */ 2992 lvif->lvif_bss_synched = synched = false; 2993 /* 2994 * We do not error as someone has to take us down. 2995 * If we are followed by a 2nd, new net80211::join1() going to 2996 * AUTH lkpi_sta_a_to_a() will error, lkpi_sta_auth_to_{scan,init}() 2997 * will take the lvif->lvif_bss node down eventually. 2998 * What happens with the vap->iv_bss node will entirely be up 2999 * to net80211 as we never used the node beyond alloc()/free() 3000 * and we do not hold an extra reference for that anymore given 3001 * ni : lsta == 1:1. 3002 * Problem is if we do not error a MGMT/AUTH frame will be 3003 * sent from net80211::sta_newstate(); disable lsta queue below. 3004 */ 3005 } 3006 LKPI_80211_LVIF_UNLOCK(lvif); 3007 /* 3008 * Make sure in case the sta did not change and we re-added it, 3009 * that we can tx again but only if the vif/iv_bss are in sync. 3010 * Otherwise this should prevent the MGMT/AUTH frame from being 3011 * sent triggering a warning in iwlwifi. 3012 */ 3013 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3014 lsta->txq_ready = synched; 3015 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3016 goto out_relocked; 3017 3018 out: 3019 wiphy_unlock(hw->wiphy); 3020 IEEE80211_LOCK(vap->iv_ic); 3021 out_relocked: 3022 /* 3023 * Release the reference that kept the ni stable locally 3024 * during the work of this function. 3025 */ 3026 if (ni != NULL) 3027 ieee80211_free_node(ni); 3028 return (error); 3029 } 3030 3031 /* UP3.1 */ 3032 static int 3033 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3034 { 3035 struct lkpi_hw *lhw; 3036 struct ieee80211_hw *hw; 3037 struct lkpi_vif *lvif; 3038 struct ieee80211_vif *vif; 3039 struct lkpi_sta *lsta; 3040 struct ieee80211_prep_tx_info prep_tx_info; 3041 int error; 3042 3043 lhw = vap->iv_ic->ic_softc; 3044 hw = LHW_TO_HW(lhw); 3045 lvif = VAP_TO_LVIF(vap); 3046 vif = LVIF_TO_VIF(lvif); 3047 3048 IEEE80211_UNLOCK(vap->iv_ic); 3049 wiphy_lock(hw->wiphy); 3050 3051 LKPI_80211_LVIF_LOCK(lvif); 3052 /* XXX-BZ KASSERT later? */ 3053 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 3054 #ifdef LINUXKPI_DEBUG_80211 3055 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3056 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3057 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3058 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3059 lvif->lvif_bss_synched); 3060 #endif 3061 error = ENOTRECOVERABLE; 3062 LKPI_80211_LVIF_UNLOCK(lvif); 3063 goto out; 3064 } 3065 lsta = lvif->lvif_bss; 3066 LKPI_80211_LVIF_UNLOCK(lvif); 3067 3068 KASSERT(lsta != NULL, ("%s: lsta %p\n", __func__, lsta)); 3069 3070 /* Finish auth. */ 3071 IMPROVE("event callback"); 3072 3073 /* Update sta_state (NONE to AUTH). */ 3074 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 3075 "NONE: %#x\n", __func__, lsta, lsta->state)); 3076 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 3077 if (error != 0) { 3078 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 3079 "failed: %d\n", __func__, __LINE__, error); 3080 goto out; 3081 } 3082 3083 /* End mgd_complete_tx. */ 3084 if (lsta->in_mgd) { 3085 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3086 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3087 prep_tx_info.success = true; 3088 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3089 lsta->in_mgd = false; 3090 } 3091 3092 /* Now start assoc. unless nstate=RUN (auth_to_run). */ 3093 3094 /* Start mgd_prepare_tx. */ 3095 if (nstate == IEEE80211_S_ASSOC && !lsta->in_mgd) { 3096 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3097 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3098 prep_tx_info.link_id = 0; 3099 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 3100 lsta->in_mgd = true; 3101 } 3102 3103 #if 0 3104 /* We do not yet have a packet to go out. */ 3105 /* Wake tx queue to get packet out. */ 3106 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, true); 3107 #endif 3108 3109 /* 3110 * <twiddle> .. we end up in "assoc_to_run" 3111 * - update sta_state (AUTH to ASSOC) 3112 * - conf_tx [all] 3113 * - bss_info_changed (assoc, aid, ssid, ..) 3114 * - change_chanctx (if needed) 3115 * - event_callback 3116 * - mgd_complete_tx 3117 */ 3118 3119 out: 3120 wiphy_unlock(hw->wiphy); 3121 IEEE80211_LOCK(vap->iv_ic); 3122 return (error); 3123 } 3124 3125 static int lkpi_sta_assoc_to_run(struct ieee80211vap *, enum ieee80211_state, int); 3126 3127 /* UP3.2 */ 3128 static int 3129 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3130 { 3131 int error; 3132 3133 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 3134 if (error == 0) 3135 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 3136 return (error); 3137 } 3138 3139 /* UP4 */ 3140 static int 3141 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3142 { 3143 struct lkpi_hw *lhw; 3144 struct ieee80211_hw *hw; 3145 struct lkpi_vif *lvif; 3146 struct ieee80211_vif *vif; 3147 struct ieee80211_node *ni; 3148 struct lkpi_sta *lsta; 3149 struct ieee80211_sta *sta; 3150 struct ieee80211_prep_tx_info prep_tx_info; 3151 enum ieee80211_bss_changed bss_changed; 3152 int error; 3153 3154 lhw = vap->iv_ic->ic_softc; 3155 hw = LHW_TO_HW(lhw); 3156 lvif = VAP_TO_LVIF(vap); 3157 vif = LVIF_TO_VIF(lvif); 3158 3159 IEEE80211_UNLOCK(vap->iv_ic); 3160 wiphy_lock(hw->wiphy); 3161 3162 LKPI_80211_LVIF_LOCK(lvif); 3163 /* XXX-BZ KASSERT later? */ 3164 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 3165 #ifdef LINUXKPI_DEBUG_80211 3166 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3167 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3168 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3169 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3170 lvif->lvif_bss_synched); 3171 #endif 3172 LKPI_80211_LVIF_UNLOCK(lvif); 3173 error = ENOTRECOVERABLE; 3174 goto out; 3175 } 3176 lsta = lvif->lvif_bss; 3177 LKPI_80211_LVIF_UNLOCK(lvif); 3178 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3179 "lvif %p vap %p\n", __func__, 3180 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3181 3182 ni = lsta->ni; /* Reference held for lvif_bss. */ 3183 3184 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 3185 "and to lesser extend ieee80211_notify_node_join"); 3186 3187 /* Finish assoc. */ 3188 /* Update sta_state (AUTH to ASSOC) and set aid. */ 3189 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 3190 "AUTH: %#x\n", __func__, lsta, lsta->state)); 3191 sta = LSTA_TO_STA(lsta); 3192 sta->aid = IEEE80211_NODE_AID(ni); 3193 #ifdef LKPI_80211_WME 3194 if (vap->iv_flags & IEEE80211_F_WME) 3195 sta->wme = true; 3196 #endif 3197 bss_changed = 0; 3198 /* 3199 * This sync needs to happen before the sta_state change to ASSOC. 3200 * At least mt7921 (likely all drivers) rely on, e.g., ht_cap, vht_cap, 3201 * .. to be set at the point we go to assoc. 3202 */ 3203 bss_changed |= lkpi_sta_sync_from_ni(hw, vif, sta, ni, true); 3204 if (ieee80211_hw_check(hw, HAS_RATE_CONTROL)) 3205 lkpi_80211_mo_set_bitrate_mask(hw, vif, &lvif->br_mask); 3206 3207 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 3208 if (error != 0) { 3209 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 3210 "failed: %d\n", __func__, __LINE__, error); 3211 goto out; 3212 } 3213 3214 IMPROVE("wme / conf_tx [all]"); 3215 3216 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 3217 #ifdef LKPI_80211_WME 3218 bss_changed |= lkpi_wme_update(lhw, vap, true); 3219 #endif 3220 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 3221 lvif->beacons = 0; 3222 vif->cfg.assoc = true; 3223 vif->cfg.aid = IEEE80211_NODE_AID(ni); 3224 bss_changed |= BSS_CHANGED_ASSOC; 3225 } 3226 /* We set SSID but this is not BSSID! */ 3227 vif->cfg.ssid_len = ni->ni_esslen; 3228 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 3229 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 3230 vif->bss_conf.use_short_preamble) { 3231 vif->bss_conf.use_short_preamble ^= 1; 3232 /* bss_changed |= BSS_CHANGED_??? */ 3233 } 3234 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 3235 vif->bss_conf.use_short_slot) { 3236 vif->bss_conf.use_short_slot ^= 1; 3237 /* bss_changed |= BSS_CHANGED_??? */ 3238 } 3239 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 3240 vif->bss_conf.qos) { 3241 vif->bss_conf.qos ^= 1; 3242 bss_changed |= BSS_CHANGED_QOS; 3243 } 3244 3245 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 3246 lkpi_bss_info_change(hw, vif, bss_changed); 3247 3248 /* - change_chanctx (if needed) 3249 * - event_callback 3250 */ 3251 3252 /* End mgd_complete_tx. (we do not have to check ostate == IEEE80211_S_ASSOC). */ 3253 if (lsta->in_mgd) { 3254 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3255 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3256 prep_tx_info.success = true; /* Needs vif->cfg.assoc set! */ 3257 prep_tx_info.link_id = 0; 3258 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3259 lsta->in_mgd = false; 3260 } 3261 3262 /* 3263 * And then: 3264 * - (more packets)? 3265 * - set_key 3266 * - set_default_unicast_key 3267 * - set_key (?) 3268 * - ipv6_addr_change (?) 3269 */ 3270 3271 if (!ieee80211_node_is_authorized(ni)) { 3272 IMPROVE("net80211 does not consider node authorized"); 3273 } 3274 3275 bss_changed = 0; 3276 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 3277 3278 /* Update thresholds. */ 3279 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 3280 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 3281 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 3282 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 3283 3284 /* Update sta_state (ASSOC to AUTHORIZED). */ 3285 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3286 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 3287 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 3288 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 3289 if (error != 0) { 3290 IMPROVE("undo some changes?"); 3291 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 3292 "failed: %d\n", __func__, __LINE__, error); 3293 goto out; 3294 } 3295 3296 /* - drv_config (?) 3297 * - bss_info_changed 3298 * - set_rekey_data (?) 3299 * 3300 * And now we should be passing packets. 3301 */ 3302 IMPROVE("Need that bssid setting, and the keys"); 3303 3304 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 3305 lkpi_bss_info_change(hw, vif, bss_changed); 3306 3307 /* Prepare_multicast && configure_filter. */ 3308 lkpi_update_mcast_filter_locked(vap->iv_ic); 3309 3310 out: 3311 wiphy_unlock(hw->wiphy); 3312 IEEE80211_LOCK(vap->iv_ic); 3313 return (error); 3314 } 3315 3316 /* 3317 * DOWN1 3318 * "to assoc" means we are going back to State 2 from State 4[/3]. 3319 * This means ni still is authenticated, so we keep sta, chanctx, .. 3320 * We will send a (Re)Assoc Request in case net80211 handles roadming. 3321 * Note: this can be called as part of a DEAUTH going to State 1 as well, 3322 * so for RoC prep_tx_info we need to check nstate (see run_to_{auth,scan,init}). 3323 */ 3324 static int 3325 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3326 { 3327 struct lkpi_hw *lhw; 3328 struct ieee80211_hw *hw; 3329 struct lkpi_vif *lvif; 3330 struct ieee80211_vif *vif; 3331 struct ieee80211_node *ni; 3332 struct lkpi_sta *lsta; 3333 struct ieee80211_sta *sta; 3334 struct ieee80211_prep_tx_info prep_tx_info; 3335 #if 0 3336 enum ieee80211_bss_changed bss_changed; 3337 #endif 3338 struct ieee80211_rx_ampdu *rap; 3339 int error; 3340 3341 lhw = vap->iv_ic->ic_softc; 3342 hw = LHW_TO_HW(lhw); 3343 lvif = VAP_TO_LVIF(vap); 3344 vif = LVIF_TO_VIF(lvif); 3345 3346 IEEE80211_UNLOCK(vap->iv_ic); 3347 wiphy_lock(hw->wiphy); 3348 3349 LKPI_80211_LVIF_LOCK(lvif); 3350 #ifdef LINUXKPI_DEBUG_80211 3351 /* XXX-BZ KASSERT later; state going down so no action. */ 3352 if (lvif->lvif_bss == NULL) 3353 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3354 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3355 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3356 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3357 lvif->lvif_bss_synched); 3358 #endif 3359 lsta = lvif->lvif_bss; 3360 LKPI_80211_LVIF_UNLOCK(lvif); 3361 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3362 "lvif %p vap %p\n", __func__, 3363 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3364 3365 ni = lsta->ni; /* Reference held for lvif_bss. */ 3366 sta = LSTA_TO_STA(lsta); 3367 3368 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3369 3370 /* flush, drop. */ 3371 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 3372 3373 /* We should make this a KASSERT. */ 3374 if (lsta->in_mgd) { 3375 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p lsta %p in_mgd\n", 3376 __func__, __LINE__, lvif, vap, lsta); 3377 } 3378 /* 3379 * Problem is that we should hook into the tx/rx flow and not 3380 * try to re-model the state machine parts. We may miss a SME 3381 * triggered frame this way. 3382 */ 3383 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3384 if (nstate == IEEE80211_S_ASSOC) { 3385 if (vap->iv_roaming == IEEE80211_ROAMING_AUTO) { 3386 if (arg) 3387 prep_tx_info.subtype = IEEE80211_STYPE_REASSOC_REQ; 3388 else 3389 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3390 } else { 3391 /* wpa_supplicant upon RTM_IEEE80211_LEAVE. */ 3392 prep_tx_info.subtype = IEEE80211_STYPE_DISASSOC; 3393 } 3394 } else 3395 prep_tx_info.subtype = IEEE80211_STYPE_DEAUTH; 3396 prep_tx_info.was_assoc = true; 3397 prep_tx_info.link_id = 0; 3398 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 3399 lsta->in_mgd = true; 3400 3401 wiphy_unlock(hw->wiphy); 3402 IEEE80211_LOCK(vap->iv_ic); 3403 3404 /* Call iv_newstate first so we get potential (RE-)ASSOC/DEAUTH? packet out. */ 3405 error = lvif->iv_newstate(vap, nstate, arg); 3406 if (error != 0) { 3407 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 3408 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 3409 goto outni; 3410 } 3411 3412 /* Stop any BA sessions if still active. */ 3413 for (int rapn = 0; rapn < WME_NUM_TID; rapn++) { 3414 rap = &ni->ni_rx_ampdu[rapn]; 3415 3416 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 3417 continue; 3418 3419 vap->iv_ic->ic_ampdu_rx_stop(ni, rap); 3420 } 3421 3422 IEEE80211_UNLOCK(vap->iv_ic); 3423 3424 /* Ensure the packets get out. */ 3425 lkpi_80211_flush_tx(lhw, lsta); 3426 3427 wiphy_lock(hw->wiphy); 3428 3429 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3430 3431 /* Wake tx queues to get packet(s) out. */ 3432 lkpi_wake_tx_queues(hw, sta, false, true); 3433 3434 /* flush, no drop */ 3435 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 3436 3437 /* End mgd_complete_tx. */ 3438 /* We should make this a KASSERT. */ 3439 if (!lsta->in_mgd) { 3440 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p lsta %p !in_mgd\n", 3441 __func__, __LINE__, lvif, vap, lsta); 3442 } 3443 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3444 lsta->in_mgd = false; 3445 3446 #if 0 3447 /* sync_rx_queues */ 3448 lkpi_80211_mo_sync_rx_queues(hw); 3449 3450 /* sta_pre_rcu_remove */ 3451 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 3452 #endif 3453 3454 /* Take the station down. */ 3455 3456 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 3457 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3458 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 3459 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 3460 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 3461 if (error != 0) { 3462 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 3463 "failed: %d\n", __func__, __LINE__, error); 3464 goto out; 3465 } 3466 3467 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3468 3469 #ifdef LKPI_80211_HW_CRYPTO 3470 if (lkpi_hwcrypto) { 3471 error = lkpi_sta_del_keys(hw, vif, lsta); 3472 if (error != 0) { 3473 ic_printf(vap->iv_ic, "%s:%d: lkpi_sta_del_keys " 3474 "failed: %d\n", __func__, __LINE__, error); 3475 /* 3476 * Either drv/fw will crash or cleanup itself, 3477 * otherwise net80211 will delete the keys (at a 3478 * less appropriate time). 3479 */ 3480 /* goto out; */ 3481 } 3482 } 3483 #endif 3484 3485 /* Update sta_state (ASSOC to AUTH). */ 3486 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3487 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 3488 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 3489 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 3490 if (error != 0) { 3491 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 3492 "failed: %d\n", __func__, __LINE__, error); 3493 goto out; 3494 } 3495 3496 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3497 3498 #if 0 3499 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 3500 /* See comment in DOWN4. */ 3501 lkpi_disassoc(sta, vif, lhw); 3502 #endif 3503 3504 error = EALREADY; 3505 out: 3506 wiphy_unlock(hw->wiphy); 3507 IEEE80211_LOCK(vap->iv_ic); 3508 outni: 3509 return (error); 3510 } 3511 3512 /* 3513 * DOWN2 3514 * We are in state 2 and go back to state 1 and will try to auth again 3515 * (to IEEE80211_S_AUTH in FreeBSD means "try to auth"). This should be 3516 * like scan_to_auth but that we keep the "ni" and with that chanctx/bssid, 3517 * which essentially makes this "a_to_a" in LinuxKPI. 3518 */ 3519 static int 3520 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3521 { 3522 struct lkpi_hw *lhw; 3523 struct ieee80211_hw *hw; 3524 struct lkpi_vif *lvif; 3525 struct ieee80211_vif *vif; 3526 struct ieee80211_node *ni; 3527 struct lkpi_sta *lsta; 3528 struct ieee80211_prep_tx_info prep_tx_info; 3529 int error; 3530 3531 lhw = vap->iv_ic->ic_softc; 3532 hw = LHW_TO_HW(lhw); 3533 lvif = VAP_TO_LVIF(vap); 3534 vif = LVIF_TO_VIF(lvif); 3535 3536 IEEE80211_UNLOCK(vap->iv_ic); 3537 wiphy_lock(hw->wiphy); 3538 3539 LKPI_80211_LVIF_LOCK(lvif); 3540 #ifdef LINUXKPI_DEBUG_80211 3541 /* XXX-BZ KASSERT later; state going down so no action. */ 3542 if (lvif->lvif_bss == NULL) 3543 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3544 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3545 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3546 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3547 lvif->lvif_bss_synched); 3548 #endif 3549 lsta = lvif->lvif_bss; 3550 LKPI_80211_LVIF_UNLOCK(lvif); 3551 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3552 "lvif %p vap %p\n", __func__, 3553 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3554 3555 ni = lsta->ni; /* Reference held for lvif_bss. */ 3556 3557 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3558 3559 /* End mgd_complete_tx. */ 3560 if (lsta->in_mgd && vap->iv_state == IEEE80211_S_ASSOC) { 3561 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3562 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3563 prep_tx_info.link_id = 0; 3564 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3565 lsta->in_mgd = false; 3566 } else if (lsta->in_mgd) { 3567 ic_printf(vap->iv_ic, "%s:%d: in_mgd %d (%s) -> %d (%s) %d\n", 3568 __func__, __LINE__, 3569 vap->iv_state, ieee80211_state_name[vap->iv_state], 3570 nstate, ieee80211_state_name[nstate], arg); 3571 } 3572 3573 /* Take the station down. */ 3574 /* Update sta_state (AUTH to NONE). */ 3575 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3576 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 3577 "AUTH: %#x\n", __func__, lsta, lsta->state)); 3578 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 3579 if (error != 0) { 3580 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 3581 "failed: %d\n", __func__, __LINE__, error); 3582 goto out; 3583 } 3584 3585 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3586 3587 out: 3588 wiphy_unlock(hw->wiphy); 3589 IEEE80211_LOCK(vap->iv_ic); 3590 return (error); 3591 } 3592 3593 /* 3594 * DOWN3 3595 * We are in state 1. Either auth timed out (arg != 0) or we have an internal 3596 * state change forcing us to give up trying to authenticate. 3597 * Cleanup and remove chanctx, sta, ... 3598 */ 3599 static int 3600 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3601 { 3602 struct lkpi_hw *lhw; 3603 struct ieee80211_hw *hw; 3604 struct lkpi_vif *lvif; 3605 struct ieee80211_vif *vif; 3606 struct ieee80211_node *ni; 3607 struct lkpi_sta *lsta; 3608 struct ieee80211_sta *sta; 3609 struct ieee80211_prep_tx_info prep_tx_info; 3610 enum ieee80211_bss_changed bss_changed; 3611 int error; 3612 3613 lhw = vap->iv_ic->ic_softc; 3614 hw = LHW_TO_HW(lhw); 3615 lvif = VAP_TO_LVIF(vap); 3616 vif = LVIF_TO_VIF(lvif); 3617 3618 IEEE80211_UNLOCK(vap->iv_ic); 3619 wiphy_lock(hw->wiphy); 3620 3621 LKPI_80211_LVIF_LOCK(lvif); 3622 /* 3623 * XXX-BZ KASSERT later; state going down so no action in theory 3624 * but try to avoid a NULL-pointer derref for now and gracefully 3625 * fail for non-debug kernels. 3626 */ 3627 if (lvif->lvif_bss == NULL) { 3628 ic_printf(vap->iv_ic, "%s:%d: ERROR: lvif %p vap %p iv_bss %p " 3629 "lvif_bss %p lvif_bss->ni %p synched %d; " 3630 "expect follow-up problems\n", __func__, __LINE__, 3631 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3632 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3633 lvif->lvif_bss_synched); 3634 LKPI_80211_LVIF_UNLOCK(lvif); 3635 /* 3636 * This will likely lead to a firmware crash (if there 3637 * was not one before already) and need a 3638 * ieee80211_restart_hw() but still better than a panic 3639 * for users as they can at least recover. 3640 */ 3641 error = ENOTRECOVERABLE; 3642 goto out; 3643 } 3644 lsta = lvif->lvif_bss; 3645 LKPI_80211_LVIF_UNLOCK(lvif); 3646 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 3647 "lvif %p vap %p\n", __func__, 3648 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 3649 ni = lsta->ni; /* Reference held for lvif_bss. */ 3650 sta = LSTA_TO_STA(lsta); 3651 3652 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3653 3654 /* flush, drop. */ 3655 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 3656 3657 /* Wake tx queues to get packet(s) out. */ 3658 lkpi_wake_tx_queues(hw, sta, false, true); 3659 3660 /* flush, no drop */ 3661 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 3662 3663 /* End mgd_complete_tx. */ 3664 if (lsta->in_mgd) { 3665 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3666 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3667 prep_tx_info.link_id = 0; 3668 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3669 lsta->in_mgd = false; 3670 } 3671 3672 /* sync_rx_queues */ 3673 lkpi_80211_mo_sync_rx_queues(hw); 3674 3675 #ifdef LKPI_80211_HW_CRYPTO 3676 if (lkpi_hwcrypto) { 3677 error = lkpi_sta_del_keys(hw, vif, lsta); 3678 if (error != 0) { 3679 ic_printf(vap->iv_ic, "%s:%d: lkpi_sta_del_keys " 3680 "failed: %d\n", __func__, __LINE__, error); 3681 /* 3682 * Either drv/fw will crash or cleanup itself, 3683 * otherwise net80211 will delete the keys (at a 3684 * less appropriate time). 3685 */ 3686 /* goto out; */ 3687 } 3688 } 3689 #endif 3690 3691 /* sta_pre_rcu_remove */ 3692 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 3693 3694 synchronize_net(); 3695 3696 /* Take the station down. */ 3697 3698 bss_changed = 0; 3699 /* 3700 * Start updating bss info (*bss_info_changed) (assoc, aid, ..). 3701 * 3702 * One would expect this to happen when going off AUTHORIZED but 3703 * not so. 3704 * 3705 * Immediately issuing the (*bss_info_changed) used to also remove the 3706 * sta from firmware for iwlwifi; or we have problems with the sta 3707 * silently not being removed and then crash upon the next sta add. 3708 * Neither seems to be the case or a problem still. 3709 * 3710 * Contrary for BE200 (iwlwifi/mld) if we do not issue the 3711 * (*vif_cfg_change) to tell FW that we are no longer assoc 3712 * it will crash now upon sta rm. So the order now is as we once 3713 * expected it: 3714 * 3715 * 1) lkpi_disassoc(): set vif->cfg.assoc = false and .aid=0 3716 * 2) add the remaining BSS_CHANGED changes and call (*bss_info_changed) 3717 * (which may be split up into (*vif_cfg_change) and 3718 * (*link_info_changed) for more modern drivers). 3719 * 3) call the last sta_state update -> IEEE80211_STA_NOTEXIST 3720 * (removes the sta given assoc is false) and tidy up our lists. 3721 * 4) call unassign_vif_chanctx 3722 * 5) call lkpi_hw_conf_idle 3723 * 6) call remove_chanctx 3724 * 3725 * Note: vif->driver_flags & IEEE80211_VIF_REMOVE_AP_AFTER_DISASSOC 3726 * might change this. 3727 */ 3728 bss_changed |= lkpi_disassoc(sta, vif, lhw); 3729 3730 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3731 3732 IMPROVE("Any bss_info changes to announce?"); 3733 vif->bss_conf.qos = false; 3734 bss_changed |= BSS_CHANGED_QOS; 3735 vif->cfg.ssid_len = 0; 3736 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 3737 IEEE80211_ADDR_COPY(vif->cfg.ap_addr, ieee80211broadcastaddr); 3738 bss_changed |= BSS_CHANGED_BSSID; 3739 vif->bss_conf.use_short_preamble = false; 3740 /* XXX BSS_CHANGED_???? */ 3741 vif->bss_conf.dtim_period = 0; /* go back to 0. */ 3742 bss_changed |= BSS_CHANGED_BEACON_INFO; 3743 lkpi_bss_info_change(hw, vif, bss_changed); 3744 3745 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 3746 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 3747 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 3748 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 3749 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 3750 if (error != 0) { 3751 IMPROVE("do we need to undo the chan ctx?"); 3752 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 3753 "failed: %d\n", __func__, __LINE__, error); 3754 goto out; 3755 } 3756 3757 lkpi_lsta_remove(lsta, lvif); 3758 3759 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 3760 3761 LKPI_80211_LVIF_LOCK(lvif); 3762 /* Remove ni reference for this cache of lsta. */ 3763 lvif->lvif_bss = NULL; 3764 lvif->lvif_bss_synched = false; 3765 LKPI_80211_LVIF_UNLOCK(lvif); 3766 3767 /* conf_tx */ 3768 3769 lkpi_remove_chanctx(hw, vif); 3770 3771 out: 3772 wiphy_unlock(hw->wiphy); 3773 IEEE80211_LOCK(vap->iv_ic); 3774 if (error == 0) { 3775 /* 3776 * We do this outside the wiphy lock as net80211::node_free() may call 3777 * into crypto code to delete keys and we have a recursed on 3778 * non-recursive sx panic. Also only do this if we get here w/o error. 3779 * 3780 * The very last release the reference on the ni for the ni/lsta on 3781 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 3782 * and potentially freed. 3783 */ 3784 ieee80211_free_node(ni); 3785 } 3786 return (error); 3787 } 3788 3789 /* DOWN4 */ 3790 static int 3791 lkpi_sta_scan_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3792 { 3793 /* lkpi_iv_newstate() handles the stop scan case in common code. */ 3794 return (lkpi_sta_state_do_nada(vap, nstate, arg)); 3795 } 3796 3797 /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ 3798 3799 static int 3800 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3801 { 3802 int error; 3803 3804 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 3805 if (error == 0) 3806 error = lkpi_sta_scan_to_init(vap, nstate, arg); 3807 return (error); 3808 } 3809 3810 /* auth_to_auth, assoc_to_assoc. */ 3811 static int 3812 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3813 { 3814 struct lkpi_hw *lhw; 3815 struct ieee80211_hw *hw; 3816 struct lkpi_vif *lvif; 3817 struct ieee80211_vif *vif; 3818 struct lkpi_sta *lsta; 3819 struct ieee80211_prep_tx_info prep_tx_info; 3820 int error; 3821 3822 lhw = vap->iv_ic->ic_softc; 3823 hw = LHW_TO_HW(lhw); 3824 lvif = VAP_TO_LVIF(vap); 3825 vif = LVIF_TO_VIF(lvif); 3826 3827 IEEE80211_UNLOCK(vap->iv_ic); 3828 wiphy_lock(hw->wiphy); 3829 3830 LKPI_80211_LVIF_LOCK(lvif); 3831 /* XXX-BZ KASSERT later? */ 3832 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 3833 #ifdef LINUXKPI_DEBUG_80211 3834 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 3835 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 3836 lvif, vap, vap->iv_bss, lvif->lvif_bss, 3837 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 3838 lvif->lvif_bss_synched); 3839 #endif 3840 LKPI_80211_LVIF_UNLOCK(lvif); 3841 error = ENOTRECOVERABLE; 3842 goto out; 3843 } 3844 lsta = lvif->lvif_bss; 3845 LKPI_80211_LVIF_UNLOCK(lvif); 3846 3847 KASSERT(lsta != NULL, ("%s: lsta %p! lvif %p vap %p\n", __func__, 3848 lsta, lvif, vap)); 3849 3850 IMPROVE("event callback?"); 3851 3852 /* End mgd_complete_tx. */ 3853 if (lsta->in_mgd) { 3854 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3855 if (vap->iv_state == IEEE80211_S_AUTH) 3856 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3857 else 3858 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3859 prep_tx_info.link_id = 0; 3860 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 3861 lsta->in_mgd = false; 3862 } 3863 3864 /* Now start auth/assoc. */ 3865 3866 /* Start mgd_prepare_tx. */ 3867 if (!lsta->in_mgd) { 3868 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 3869 if (nstate == IEEE80211_S_AUTH) 3870 prep_tx_info.subtype = IEEE80211_STYPE_AUTH; 3871 else 3872 prep_tx_info.subtype = IEEE80211_STYPE_ASSOC_REQ; 3873 prep_tx_info.link_id = 0; 3874 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 3875 lsta->in_mgd = true; 3876 } 3877 3878 error = 0; 3879 out: 3880 wiphy_unlock(hw->wiphy); 3881 IEEE80211_LOCK(vap->iv_ic); 3882 3883 return (error); 3884 } 3885 3886 static int 3887 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3888 { 3889 int error; 3890 3891 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 3892 if (error != 0 && error != EALREADY) 3893 return (error); 3894 3895 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 3896 return (error); 3897 } 3898 3899 static int 3900 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3901 { 3902 int error; 3903 3904 error = lkpi_sta_assoc_to_scan(vap, nstate, arg); 3905 if (error != 0 && error != EALREADY) 3906 return (error); 3907 3908 error = lkpi_sta_scan_to_init(vap, nstate, arg); /* do_nada */ 3909 return (error); 3910 } 3911 3912 static int 3913 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3914 { 3915 int error; 3916 3917 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 3918 if (error != 0 && error != EALREADY) 3919 return (error); 3920 3921 error = lkpi_sta_assoc_to_init(vap, nstate, arg); 3922 return (error); 3923 } 3924 3925 static int 3926 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3927 { 3928 int error; 3929 3930 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 3931 if (error != 0 && error != EALREADY) 3932 return (error); 3933 3934 error = lkpi_sta_assoc_to_scan(vap, nstate, arg); 3935 return (error); 3936 } 3937 3938 static int 3939 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3940 { 3941 int error; 3942 3943 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 3944 if (error != 0 && error != EALREADY) 3945 return (error); 3946 3947 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 3948 return (error); 3949 } 3950 3951 /* -------------------------------------------------------------------------- */ 3952 3953 /* 3954 * The matches the documented state changes in net80211::sta_newstate(). 3955 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 3956 * there are "invalid" (so there is a room for failure here). 3957 */ 3958 struct fsm_state { 3959 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 3960 enum ieee80211_state ostate; 3961 enum ieee80211_state nstate; 3962 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 3963 } sta_state_fsm[] = { 3964 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 3965 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* DOWN4 scan_to_init */ 3966 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 3967 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 3968 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 3969 3970 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_init_to_scan }, /* UP1 */ 3971 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 3972 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, /* DOWN3 */ 3973 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 3974 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 3975 3976 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 3977 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* UP2 Send AUTH. */ 3978 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 3979 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* DOWN2 Send ?AUTH. */ 3980 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 3981 3982 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* UP3.1 Send ASSOCREQ. */ 3983 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 3984 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* DOWN1 Send ASSOCREQ/REASSOCREQ. */ 3985 3986 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, /* UP3.2 */ 3987 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, /* UP4 */ 3988 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 3989 3990 /* Dummy at the end without handler. */ 3991 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 3992 }; 3993 3994 static int 3995 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 3996 { 3997 struct ieee80211com *ic; 3998 struct lkpi_hw *lhw; 3999 struct lkpi_vif *lvif; 4000 struct ieee80211_vif *vif; 4001 struct fsm_state *s; 4002 enum ieee80211_state ostate; 4003 int error; 4004 4005 ic = vap->iv_ic; 4006 IEEE80211_LOCK_ASSERT(ic); 4007 ostate = vap->iv_state; 4008 4009 #ifdef LINUXKPI_DEBUG_80211 4010 if (linuxkpi_debug_80211 & D80211_TRACE) 4011 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 4012 __func__, __LINE__, vap, nstate, arg); 4013 #endif 4014 4015 if (vap->iv_opmode == IEEE80211_M_STA) { 4016 4017 lhw = ic->ic_softc; 4018 lvif = VAP_TO_LVIF(vap); 4019 vif = LVIF_TO_VIF(lvif); 4020 4021 /* No need to replicate this in most state handlers. */ 4022 if (nstate > IEEE80211_S_SCAN) 4023 lkpi_stop_hw_scan(lhw, vif); 4024 4025 s = sta_state_fsm; 4026 4027 } else { 4028 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 4029 "vap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 4030 return (ENOSYS); 4031 } 4032 4033 error = 0; 4034 for (; s->handler != NULL; s++) { 4035 if (ostate == s->ostate && nstate == s->nstate) { 4036 #ifdef LINUXKPI_DEBUG_80211 4037 if (linuxkpi_debug_80211 & D80211_TRACE) 4038 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 4039 " %d (%s): arg %d.\n", __func__, 4040 ostate, ieee80211_state_name[ostate], 4041 nstate, ieee80211_state_name[nstate], arg); 4042 #endif 4043 error = s->handler(vap, nstate, arg); 4044 break; 4045 } 4046 } 4047 IEEE80211_LOCK_ASSERT(vap->iv_ic); 4048 4049 if (s->handler == NULL) { 4050 IMPROVE("turn this into a KASSERT\n"); 4051 ic_printf(vap->iv_ic, "%s: unsupported state transition " 4052 "%d (%s) -> %d (%s)\n", __func__, 4053 ostate, ieee80211_state_name[ostate], 4054 nstate, ieee80211_state_name[nstate]); 4055 return (ENOSYS); 4056 } 4057 4058 if (error == EALREADY) { 4059 #ifdef LINUXKPI_DEBUG_80211 4060 if (linuxkpi_debug_80211 & D80211_TRACE) 4061 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 4062 "%d (%s): iv_newstate already handled: %d.\n", 4063 __func__, ostate, ieee80211_state_name[ostate], 4064 nstate, ieee80211_state_name[nstate], error); 4065 #endif 4066 return (0); 4067 } 4068 4069 if (error != 0) { 4070 ic_printf(vap->iv_ic, "%s: error %d during state transition " 4071 "%d (%s) -> %d (%s)\n", __func__, error, 4072 ostate, ieee80211_state_name[ostate], 4073 nstate, ieee80211_state_name[nstate]); 4074 return (error); 4075 } 4076 4077 #ifdef LINUXKPI_DEBUG_80211 4078 if (linuxkpi_debug_80211 & D80211_TRACE) 4079 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 4080 "calling net80211 parent\n", 4081 __func__, __LINE__, vap, nstate, arg); 4082 #endif 4083 4084 return (lvif->iv_newstate(vap, nstate, arg)); 4085 } 4086 4087 /* -------------------------------------------------------------------------- */ 4088 4089 /* 4090 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 4091 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 4092 * new node without us knowing and thus our ni/lsta are out of sync. 4093 */ 4094 static struct ieee80211_node * 4095 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 4096 { 4097 struct lkpi_vif *lvif; 4098 struct ieee80211_node *rni; 4099 4100 IEEE80211_LOCK_ASSERT(vap->iv_ic); 4101 4102 lvif = VAP_TO_LVIF(vap); 4103 4104 LKPI_80211_LVIF_LOCK(lvif); 4105 lvif->lvif_bss_synched = false; 4106 LKPI_80211_LVIF_UNLOCK(lvif); 4107 4108 rni = lvif->iv_update_bss(vap, ni); 4109 return (rni); 4110 } 4111 4112 #ifdef LKPI_80211_WME 4113 static int 4114 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 4115 { 4116 struct ieee80211com *ic; 4117 struct ieee80211_hw *hw; 4118 struct lkpi_vif *lvif; 4119 struct ieee80211_vif *vif; 4120 struct chanAccParams chp; 4121 struct wmeParams wmeparr[WME_NUM_AC]; 4122 struct ieee80211_tx_queue_params txqp; 4123 enum ieee80211_bss_changed bss_changed; 4124 int error; 4125 uint16_t ac; 4126 4127 hw = LHW_TO_HW(lhw); 4128 lockdep_assert_wiphy(hw->wiphy); 4129 4130 IMPROVE(); 4131 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 4132 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 4133 4134 if (vap == NULL) 4135 return (0); 4136 4137 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 4138 return (0); 4139 4140 if (lhw->ops->conf_tx == NULL) 4141 return (0); 4142 4143 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 4144 lhw->update_wme = true; 4145 return (0); 4146 } 4147 lhw->update_wme = false; 4148 4149 ic = lhw->ic; 4150 ieee80211_wme_ic_getparams(ic, &chp); 4151 IEEE80211_LOCK(ic); 4152 for (ac = 0; ac < WME_NUM_AC; ac++) 4153 wmeparr[ac] = chp.cap_wmeParams[ac]; 4154 IEEE80211_UNLOCK(ic); 4155 4156 lvif = VAP_TO_LVIF(vap); 4157 vif = LVIF_TO_VIF(lvif); 4158 4159 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 4160 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4161 struct wmeParams *wmep; 4162 4163 wmep = &wmeparr[ac]; 4164 bzero(&txqp, sizeof(txqp)); 4165 txqp.cw_min = wmep->wmep_logcwmin; 4166 txqp.cw_max = wmep->wmep_logcwmax; 4167 txqp.txop = wmep->wmep_txopLimit; 4168 txqp.aifs = wmep->wmep_aifsn; 4169 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 4170 if (error != 0) 4171 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 4172 __func__, ac, error); 4173 } 4174 bss_changed = BSS_CHANGED_QOS; 4175 if (!planned) 4176 lkpi_bss_info_change(hw, vif, bss_changed); 4177 4178 return (bss_changed); 4179 } 4180 #endif 4181 4182 static int 4183 lkpi_ic_wme_update(struct ieee80211com *ic) 4184 { 4185 #ifdef LKPI_80211_WME 4186 struct ieee80211vap *vap; 4187 struct lkpi_hw *lhw; 4188 struct ieee80211_hw *hw; 4189 4190 IMPROVE("Use the per-VAP callback in net80211."); 4191 vap = TAILQ_FIRST(&ic->ic_vaps); 4192 if (vap == NULL) 4193 return (0); 4194 4195 lhw = ic->ic_softc; 4196 hw = LHW_TO_HW(lhw); 4197 4198 wiphy_lock(hw->wiphy); 4199 lkpi_wme_update(lhw, vap, false); 4200 wiphy_unlock(hw->wiphy); 4201 #endif 4202 return (0); /* unused */ 4203 } 4204 4205 static void 4206 lkpi_iv_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m0, 4207 int subtype, const struct ieee80211_rx_stats *rxs, int rssi, int nf) 4208 { 4209 struct lkpi_hw *lhw; 4210 struct ieee80211_hw *hw; 4211 struct lkpi_vif *lvif; 4212 struct ieee80211_vif *vif; 4213 enum ieee80211_bss_changed bss_changed; 4214 4215 lvif = VAP_TO_LVIF(ni->ni_vap); 4216 vif = LVIF_TO_VIF(lvif); 4217 4218 lvif->iv_recv_mgmt(ni, m0, subtype, rxs, rssi, nf); 4219 4220 switch (subtype) { 4221 case IEEE80211_FC0_SUBTYPE_PROBE_RESP: 4222 break; 4223 case IEEE80211_FC0_SUBTYPE_BEACON: 4224 /* 4225 * Only count beacons when assoc. SCAN has its own logging. 4226 * This is for connection/beacon loss/session protection almost 4227 * over debugging when trying to get into a stable RUN state. 4228 */ 4229 if (vif->cfg.assoc) 4230 lvif->beacons++; 4231 break; 4232 default: 4233 return; 4234 } 4235 4236 lhw = ni->ni_ic->ic_softc; 4237 hw = LHW_TO_HW(lhw); 4238 4239 /* 4240 * If this direct call to mo_bss_info_changed will not work due to 4241 * locking, see if queue_work() is fast enough. 4242 */ 4243 wiphy_lock(hw->wiphy); 4244 bss_changed = lkpi_update_dtim_tsf(vif, ni, ni->ni_vap, __func__, __LINE__); 4245 lkpi_bss_info_change(hw, vif, bss_changed); 4246 wiphy_unlock(hw->wiphy); 4247 } 4248 4249 /* 4250 * Change link-layer address on the vif (if the vap is not started/"UP"). 4251 * This can happen if a user changes 'ether' using ifconfig. 4252 * The code is based on net80211/ieee80211_freebsd.c::wlan_iflladdr() but 4253 * we do use a per-[l]vif event handler to be sure we exist as we 4254 * cannot assume that from every vap derives a vif and we have a hard 4255 * time checking based on net80211 information. 4256 * Should this ever become a real problem we could add a callback function 4257 * to wlan_iflladdr() to be set optionally but that would be for a 4258 * single-consumer (or needs a list) -- was just too complicated for an 4259 * otherwise perfect mechanism FreeBSD already provides. 4260 */ 4261 static void 4262 lkpi_vif_iflladdr(void *arg, struct ifnet *ifp) 4263 { 4264 struct epoch_tracker et; 4265 struct ieee80211_vif *vif; 4266 4267 NET_EPOCH_ENTER(et); 4268 /* NB: identify vap's by if_transmit; left as an extra check. */ 4269 if (if_gettransmitfn(ifp) != ieee80211_vap_transmit || 4270 (if_getflags(ifp) & IFF_UP) != 0) { 4271 NET_EPOCH_EXIT(et); 4272 return; 4273 } 4274 4275 vif = arg; 4276 IEEE80211_ADDR_COPY(vif->bss_conf.addr, if_getlladdr(ifp)); 4277 NET_EPOCH_EXIT(et); 4278 } 4279 4280 static struct ieee80211vap * 4281 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 4282 int unit, enum ieee80211_opmode opmode, int flags, 4283 const uint8_t bssid[IEEE80211_ADDR_LEN], 4284 const uint8_t mac[IEEE80211_ADDR_LEN]) 4285 { 4286 struct lkpi_hw *lhw; 4287 struct ieee80211_hw *hw; 4288 struct lkpi_vif *lvif; 4289 struct ieee80211vap *vap; 4290 struct ieee80211_vif *vif; 4291 struct ieee80211_tx_queue_params txqp; 4292 enum ieee80211_bss_changed bss_changed; 4293 enum nl80211_band band; 4294 struct sysctl_oid *node; 4295 size_t len; 4296 int error, i; 4297 uint16_t ac; 4298 4299 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 4300 return (NULL); 4301 4302 lhw = ic->ic_softc; 4303 hw = LHW_TO_HW(lhw); 4304 4305 len = sizeof(*lvif); 4306 len += hw->vif_data_size; /* vif->drv_priv */ 4307 4308 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 4309 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 4310 TASK_INIT(&lvif->sw_scan_task, 0, lkpi_sw_scan_task, lvif); 4311 INIT_LIST_HEAD(&lvif->lsta_list); 4312 lvif->lvif_bss = NULL; 4313 refcount_init(&lvif->nt_unlocked, 0); 4314 lvif->lvif_bss_synched = false; 4315 vap = LVIF_TO_VAP(lvif); 4316 vif = LVIF_TO_VIF(lvif); 4317 4318 /* 4319 * Setup legacy br_mask here. We will call (*set_bitrate_mask) 4320 * elsewhere to announce it to the driver but it is a static 4321 * setup. 4322 * Also setup basic_rates with just the mandatory rates for the 4323 * current band (if avail). 4324 */ 4325 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4326 struct ieee80211_supported_band *supband; 4327 uint32_t rate_mandatory;; 4328 4329 supband = hw->wiphy->bands[band]; 4330 if (supband == NULL || supband->n_bitrates == 0) 4331 continue; 4332 4333 /* Per-band legacy br_mask. */ 4334 lvif->br_mask.control[band].legacy = (1 << supband->n_bitrates) - 1; 4335 4336 /* basic_rates for the current band. */ 4337 if (hw->conf.chandef.chan == NULL || 4338 hw->conf.chandef.chan->band != band) 4339 continue; 4340 4341 switch (band) { 4342 case NL80211_BAND_2GHZ: 4343 /* We have to assume 11g support here. */ 4344 rate_mandatory = IEEE80211_RATE_MANDATORY_G | 4345 IEEE80211_RATE_MANDATORY_B; 4346 break; 4347 case NL80211_BAND_5GHZ: 4348 rate_mandatory = IEEE80211_RATE_MANDATORY_A; 4349 break; 4350 default: 4351 continue; 4352 } 4353 4354 for (i = 0; i < supband->n_bitrates; i++) { 4355 if ((supband->bitrates[i].flags & rate_mandatory) != 0) 4356 vif->bss_conf.basic_rates |= BIT(i); 4357 } 4358 } 4359 4360 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 4361 vif->p2p = false; 4362 vif->probe_req_reg = false; 4363 vif->type = lkpi_opmode_to_vif_type(opmode); 4364 lvif->wdev.wiphy = hw->wiphy; 4365 lvif->wdev.iftype = vif->type; 4366 wiphy_lock(hw->wiphy); 4367 list_add_rcu(&lvif->wdev.list, &hw->wiphy->wdev_list); 4368 wiphy_unlock(hw->wiphy); 4369 memcpy(lvif->wdev.address, mac, IEEE80211_ADDR_LEN); 4370 #if 0 4371 /* Need to fill in other fields as well. */ 4372 struct net_device *netdev; /* When do we create this? */ 4373 uint32_t radio_mask; 4374 #endif 4375 IMPROVE("wdev"); 4376 4377 /* Create a chanctx to be used later. */ 4378 IMPROVE("lkpi_alloc_lchanctx reserved as many as can be"); 4379 (void) lkpi_find_lchanctx_reserved(hw, lvif); 4380 4381 /* XXX-BZ hardcoded for now! */ 4382 #if 1 4383 RCU_INIT_POINTER(vif->bss_conf.chanctx_conf, NULL); 4384 vif->bss_conf.vif = vif; 4385 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 4386 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 4387 lvif->lvif_ifllevent = EVENTHANDLER_REGISTER(iflladdr_event, 4388 lkpi_vif_iflladdr, vif, EVENTHANDLER_PRI_ANY); 4389 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 4390 vif->bss_conf.chanreq.oper.chan = lhw->dflt_chandef.chan; 4391 vif->bss_conf.chanreq.oper.width = NL80211_CHAN_WIDTH_20_NOHT; 4392 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 4393 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 4394 vif->bss_conf.qos = false; 4395 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 4396 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 4397 IEEE80211_ADDR_COPY(vif->cfg.ap_addr, ieee80211broadcastaddr); 4398 vif->cfg.aid = 0; 4399 vif->cfg.assoc = false; 4400 vif->cfg.idle = true; 4401 vif->cfg.ps = false; 4402 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 4403 /* 4404 * We need to initialize it to something as the bss_info_changed call 4405 * will try to copy from it in iwlwifi and NULL is a panic. 4406 * We will set the proper one in scan_to_auth() before being assoc. 4407 */ 4408 vif->bss_conf.bssid = ieee80211broadcastaddr; 4409 #endif 4410 #if 0 4411 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 4412 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 4413 vif->bss_conf.beacon_int = ic->ic_bintval; 4414 /* iwlwifi bug. */ 4415 if (vif->bss_conf.beacon_int < 16) 4416 vif->bss_conf.beacon_int = 16; 4417 #endif 4418 4419 /* Link Config */ 4420 vif->link_conf[0] = &vif->bss_conf; 4421 for (i = 0; i < nitems(vif->link_conf); i++) { 4422 IMPROVE("more than 1 link one day"); 4423 } 4424 4425 /* Setup queue defaults; driver may override in (*add_interface). */ 4426 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 4427 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 4428 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 4429 else if (hw->queues >= IEEE80211_NUM_ACS) 4430 vif->hw_queue[i] = i; 4431 else 4432 vif->hw_queue[i] = 0; 4433 4434 /* Initialize the queue to running. Stopped? */ 4435 lvif->hw_queue_stopped[i] = false; 4436 } 4437 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 4438 4439 IMPROVE(); 4440 4441 wiphy_lock(hw->wiphy); 4442 error = lkpi_80211_mo_start(hw); 4443 if (error != 0) { 4444 wiphy_unlock(hw->wiphy); 4445 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 4446 mtx_destroy(&lvif->mtx); 4447 free(lvif, M_80211_VAP); 4448 return (NULL); 4449 } 4450 4451 error = lkpi_80211_mo_add_interface(hw, vif); 4452 if (error != 0) { 4453 IMPROVE(); /* XXX-BZ mo_stop()? */ 4454 wiphy_unlock(hw->wiphy); 4455 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 4456 mtx_destroy(&lvif->mtx); 4457 free(lvif, M_80211_VAP); 4458 return (NULL); 4459 } 4460 wiphy_unlock(hw->wiphy); 4461 4462 LKPI_80211_LHW_LVIF_LOCK(lhw); 4463 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 4464 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4465 4466 wiphy_lock(hw->wiphy); 4467 4468 /* Set bss_info. */ 4469 bss_changed = 0; 4470 lkpi_bss_info_change(hw, vif, bss_changed); 4471 4472 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 4473 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 4474 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4475 4476 bzero(&txqp, sizeof(txqp)); 4477 txqp.cw_min = 15; 4478 txqp.cw_max = 1023; 4479 txqp.txop = 0; 4480 txqp.aifs = 2; 4481 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 4482 if (error != 0) 4483 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 4484 __func__, ac, error); 4485 } 4486 bss_changed = BSS_CHANGED_QOS; 4487 lkpi_bss_info_change(hw, vif, bss_changed); 4488 4489 /* Force MC init. */ 4490 lkpi_update_mcast_filter_locked(ic); 4491 4492 wiphy_unlock(hw->wiphy); 4493 4494 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 4495 4496 /* Now we have a valid vap->iv_ifp. Any checksum offloading goes below. */ 4497 4498 IMPROVE(); 4499 4500 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 4501 lvif->iv_newstate = vap->iv_newstate; 4502 vap->iv_newstate = lkpi_iv_newstate; 4503 lvif->iv_update_bss = vap->iv_update_bss; 4504 vap->iv_update_bss = lkpi_iv_update_bss; 4505 lvif->iv_recv_mgmt = vap->iv_recv_mgmt; 4506 vap->iv_recv_mgmt = lkpi_iv_sta_recv_mgmt; 4507 4508 #ifdef LKPI_80211_HW_CRYPTO 4509 /* Key management. */ 4510 if (lkpi_hwcrypto && lhw->ops->set_key != NULL) { 4511 vap->iv_key_set = lkpi_iv_key_set; 4512 vap->iv_key_delete = lkpi_iv_key_delete; 4513 vap->iv_key_update_begin = lkpi_iv_key_update_begin; 4514 vap->iv_key_update_end = lkpi_iv_key_update_end; 4515 } 4516 #endif 4517 4518 #ifdef LKPI_80211_HT 4519 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 4520 #endif 4521 4522 ieee80211_ratectl_init(vap); 4523 4524 /* Complete setup. */ 4525 ieee80211_vap_attach(vap, ieee80211_media_change, 4526 ieee80211_media_status, mac); 4527 4528 #ifdef LKPI_80211_HT 4529 /* 4530 * Modern chipset/fw/drv will do A-MPDU in drv/fw and fail 4531 * to do so if they cannot do the crypto too. 4532 */ 4533 if (!lkpi_hwcrypto && IEEE80211_CONF_AMPDU_OFFLOAD(ic)) 4534 vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX; 4535 #endif 4536 4537 if (hw->max_listen_interval == 0) 4538 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 4539 hw->conf.listen_interval = hw->max_listen_interval; 4540 4541 wiphy_lock(hw->wiphy); 4542 /* XXX-BZ do we need to be able to update these? */ 4543 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 4544 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 4545 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 4546 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 4547 wiphy_unlock(hw->wiphy); 4548 /* any others? */ 4549 4550 /* Add per-VIF/VAP sysctls. */ 4551 sysctl_ctx_init(&lvif->sysctl_ctx); 4552 4553 node = SYSCTL_ADD_NODE(&lvif->sysctl_ctx, 4554 SYSCTL_CHILDREN(&sysctl___compat_linuxkpi_80211), 4555 OID_AUTO, if_name(vap->iv_ifp), 4556 CTLFLAG_RD | CTLFLAG_SKIP | CTLFLAG_MPSAFE, NULL, "VIF Information"); 4557 4558 SYSCTL_ADD_PROC(&lvif->sysctl_ctx, 4559 SYSCTL_CHILDREN(node), OID_AUTO, "dump_stas", 4560 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, lvif, 0, 4561 lkpi_80211_dump_stas, "A", "Dump sta statistics of this vif"); 4562 SYSCTL_ADD_PROC(&lvif->sysctl_ctx, 4563 SYSCTL_CHILDREN(node), OID_AUTO, "dump_stas_queues", 4564 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE | CTLFLAG_SKIP, lvif, 0, 4565 lkpi_80211_dump_sta_queues, "A", 4566 "Dump queue statistics for any sta of this vif"); 4567 4568 IMPROVE(); 4569 4570 return (vap); 4571 } 4572 4573 void 4574 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 4575 { 4576 4577 wiphy_unregister(hw->wiphy); 4578 linuxkpi_ieee80211_ifdetach(hw); 4579 4580 IMPROVE(); 4581 } 4582 4583 void 4584 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 4585 { 4586 4587 TODO(); 4588 } 4589 4590 static void 4591 lkpi_ic_vap_delete(struct ieee80211vap *vap) 4592 { 4593 struct ieee80211com *ic; 4594 struct lkpi_hw *lhw; 4595 struct ieee80211_hw *hw; 4596 struct lkpi_vif *lvif; 4597 struct ieee80211_vif *vif; 4598 4599 lvif = VAP_TO_LVIF(vap); 4600 vif = LVIF_TO_VIF(lvif); 4601 ic = vap->iv_ic; 4602 lhw = ic->ic_softc; 4603 hw = LHW_TO_HW(lhw); 4604 4605 EVENTHANDLER_DEREGISTER(iflladdr_event, lvif->lvif_ifllevent); 4606 4607 /* Clear up per-VIF/VAP sysctls. */ 4608 sysctl_ctx_free(&lvif->sysctl_ctx); 4609 4610 ieee80211_draintask(ic, &lvif->sw_scan_task); 4611 4612 LKPI_80211_LHW_LVIF_LOCK(lhw); 4613 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 4614 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4615 4616 wiphy_lock(hw->wiphy); 4617 list_del_rcu(&lvif->wdev.list); 4618 wiphy_unlock(hw->wiphy); 4619 4620 ieee80211_ratectl_deinit(vap); 4621 ieee80211_vap_detach(vap); 4622 4623 IMPROVE("clear up other bits in this state"); 4624 4625 lkpi_80211_mo_remove_interface(hw, vif); 4626 4627 /* Single VAP, so we can do this here. */ 4628 lkpi_80211_mo_stop(hw, false); /* XXX SUSPEND */ 4629 4630 mtx_destroy(&lvif->mtx); 4631 free(lvif, M_80211_VAP); 4632 } 4633 4634 static void 4635 lkpi_ic_update_mcast(struct ieee80211com *ic) 4636 { 4637 struct ieee80211vap *vap; 4638 struct lkpi_hw *lhw; 4639 4640 lhw = ic->ic_softc; 4641 4642 LKPI_80211_LHW_MC_LOCK(lhw); 4643 /* Cleanup anything on the current list. */ 4644 lkpi_cleanup_mcast_list_locked(lhw); 4645 4646 /* Build up the new list (or allmulti). */ 4647 if (ic->ic_allmulti == 0) { 4648 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 4649 if_foreach_llmaddr(vap->iv_ifp, 4650 lkpi_ic_update_mcast_copy, &lhw->mc_list); 4651 lhw->mc_all_multi = false; 4652 } else { 4653 lhw->mc_all_multi = true; 4654 } 4655 LKPI_80211_LHW_MC_UNLOCK(lhw); 4656 4657 lkpi_update_mcast_filter(ic); 4658 TRACEOK(); 4659 } 4660 4661 static void 4662 lkpi_ic_update_promisc(struct ieee80211com *ic) 4663 { 4664 4665 UNIMPLEMENTED; 4666 } 4667 4668 static void 4669 lkpi_ic_update_chw(struct ieee80211com *ic) 4670 { 4671 4672 UNIMPLEMENTED; 4673 } 4674 4675 /* Start / stop device. */ 4676 static void 4677 lkpi_ic_parent(struct ieee80211com *ic) 4678 { 4679 struct lkpi_hw *lhw; 4680 struct ieee80211_hw *hw; 4681 #ifdef HW_START_STOP 4682 int error; 4683 #endif 4684 bool start_all; 4685 4686 IMPROVE(); 4687 4688 lhw = ic->ic_softc; 4689 hw = LHW_TO_HW(lhw); 4690 start_all = false; 4691 4692 /* IEEE80211_UNLOCK(ic); */ 4693 wiphy_lock(hw->wiphy); 4694 if (ic->ic_nrunning > 0) { 4695 #ifdef HW_START_STOP 4696 error = lkpi_80211_mo_start(hw); 4697 if (error == 0) 4698 #endif 4699 start_all = true; 4700 } else { 4701 #ifdef HW_START_STOP 4702 lkpi_80211_mo_stop(hw, false); /* XXX SUSPEND */ 4703 #endif 4704 } 4705 wiphy_unlock(hw->wiphy); 4706 /* IEEE80211_LOCK(ic); */ 4707 4708 if (start_all) 4709 ieee80211_start_all(ic); 4710 } 4711 4712 bool 4713 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 4714 size_t ie_ids_len) 4715 { 4716 int i; 4717 4718 for (i = 0; i < ie_ids_len; i++) { 4719 if (ie == *ie_ids) 4720 return (true); 4721 } 4722 4723 return (false); 4724 } 4725 4726 /* Return true if skipped; false if error. */ 4727 bool 4728 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 4729 { 4730 size_t x; 4731 uint8_t l; 4732 4733 x = *xp; 4734 4735 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 4736 __func__, x, ies_len, ies)); 4737 l = ies[x + 1]; 4738 x += 2 + l; 4739 4740 if (x > ies_len) 4741 return (false); 4742 4743 *xp = x; 4744 return (true); 4745 } 4746 4747 static uint8_t * 4748 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 4749 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 4750 { 4751 struct ieee80211_supported_band *supband; 4752 struct linuxkpi_ieee80211_channel *channels; 4753 struct ieee80211com *ic; 4754 const struct ieee80211_channel *chan; 4755 const struct ieee80211_rateset *rs; 4756 uint8_t *pb; 4757 int band, i; 4758 4759 ic = vap->iv_ic; 4760 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4761 if ((band_mask & (1 << band)) == 0) 4762 continue; 4763 4764 supband = hw->wiphy->bands[band]; 4765 /* 4766 * This should not happen; 4767 * band_mask is a bitmask of valid bands to scan on. 4768 */ 4769 if (supband == NULL || supband->n_channels == 0) 4770 continue; 4771 4772 /* Find a first channel to get the mode and rates from. */ 4773 channels = supband->channels; 4774 chan = NULL; 4775 for (i = 0; i < supband->n_channels; i++) { 4776 uint32_t flags; 4777 4778 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4779 continue; 4780 4781 flags = 0; 4782 switch (band) { 4783 case NL80211_BAND_2GHZ: 4784 flags |= IEEE80211_CHAN_G; 4785 break; 4786 case NL80211_BAND_5GHZ: 4787 flags |= IEEE80211_CHAN_A; 4788 break; 4789 default: 4790 panic("%s:%d: unupported band %d\n", 4791 __func__, __LINE__, band); 4792 } 4793 4794 chan = ieee80211_find_channel(ic, 4795 channels[i].center_freq, flags); 4796 if (chan != NULL) 4797 break; 4798 } 4799 4800 /* This really should not happen. */ 4801 if (chan == NULL) 4802 continue; 4803 4804 pb = p; 4805 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 4806 p = ieee80211_add_rates(p, rs); 4807 p = ieee80211_add_xrates(p, rs); 4808 4809 #if defined(LKPI_80211_HT) 4810 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 4811 struct ieee80211_channel *c; 4812 4813 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 4814 vap->iv_flags_ht); 4815 p = ieee80211_add_htcap_ch(p, vap, c); 4816 } 4817 #endif 4818 #if defined(LKPI_80211_VHT) 4819 if (band == NL80211_BAND_5GHZ && 4820 (vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 4821 struct ieee80211_channel *c; 4822 4823 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 4824 vap->iv_flags_ht); 4825 c = ieee80211_vht_adjust_channel(ic, c, 4826 vap->iv_vht_flags); 4827 p = ieee80211_add_vhtcap_ch(p, vap, c); 4828 } 4829 #endif 4830 4831 scan_ies->ies[band] = pb; 4832 scan_ies->len[band] = p - pb; 4833 } 4834 4835 /* Add common_ies */ 4836 pb = p; 4837 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 4838 vap->iv_wpa_ie != NULL) { 4839 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 4840 p += 2 + vap->iv_wpa_ie[1]; 4841 } 4842 if (vap->iv_appie_probereq != NULL) { 4843 memcpy(p, vap->iv_appie_probereq->ie_data, 4844 vap->iv_appie_probereq->ie_len); 4845 p += vap->iv_appie_probereq->ie_len; 4846 } 4847 scan_ies->common_ies = pb; 4848 scan_ies->common_ie_len = p - pb; 4849 4850 return (p); 4851 } 4852 4853 static void 4854 lkpi_enable_hw_scan(struct lkpi_hw *lhw) 4855 { 4856 4857 if (lhw->ops->hw_scan) { 4858 /* 4859 * Advertise full-offload scanning. 4860 * 4861 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4862 * we essentially disable hw_scan for all drivers not setting 4863 * the flag. 4864 */ 4865 lhw->ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4866 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4867 } 4868 } 4869 4870 #ifndef LKPI_80211_USE_SCANLIST 4871 static const uint32_t chan_pri[] = { 4872 5180, 5500, 5745, 4873 5260, 5580, 5660, 5825, 4874 5220, 5300, 5540, 5620, 5700, 5785, 5865, 4875 2437, 2412, 2422, 2462, 2472, 2432, 2452 4876 }; 4877 4878 static int 4879 lkpi_scan_chan_list_idx(const struct linuxkpi_ieee80211_channel *lc) 4880 { 4881 int i; 4882 4883 for (i = 0; i < nitems(chan_pri); i++) { 4884 if (lc->center_freq == chan_pri[i]) 4885 return (i); 4886 } 4887 4888 return (-1); 4889 } 4890 4891 static int 4892 lkpi_scan_chan_list_comp(const struct linuxkpi_ieee80211_channel *lc1, 4893 const struct linuxkpi_ieee80211_channel *lc2) 4894 { 4895 int idx1, idx2; 4896 4897 /* Find index in list. */ 4898 idx1 = lkpi_scan_chan_list_idx(lc1); 4899 idx2 = lkpi_scan_chan_list_idx(lc2); 4900 4901 if (idx1 == -1 && idx2 != -1) 4902 return (1); 4903 if (idx1 != -1 && idx2 == -1) 4904 return (-1); 4905 4906 /* Neither on the list, use center_freq. */ 4907 if (idx1 == -1 && idx2 == -1) 4908 return (lc1->center_freq - lc2->center_freq); 4909 4910 /* Whichever is first in the list. */ 4911 return (idx1 - idx2); 4912 } 4913 4914 static void 4915 lkpi_scan_chan_list_resort(struct linuxkpi_ieee80211_channel **cpp, size_t nchan) 4916 { 4917 struct linuxkpi_ieee80211_channel *lc, *nc; 4918 size_t i, j; 4919 int rc; 4920 4921 for (i = (nchan - 1); i > 0; i--) { 4922 for (j = i; j > 0 ; j--) { 4923 lc = *(cpp + j); 4924 nc = *(cpp + j - 1); 4925 rc = lkpi_scan_chan_list_comp(lc, nc); 4926 if (rc < 0) { 4927 *(cpp + j) = nc; 4928 *(cpp + j - 1) = lc; 4929 } 4930 } 4931 } 4932 } 4933 4934 static bool 4935 lkpi_scan_chan(struct linuxkpi_ieee80211_channel *c, 4936 struct ieee80211com *ic, bool log) 4937 { 4938 4939 if ((c->flags & IEEE80211_CHAN_DISABLED) != 0) { 4940 if (log) 4941 TRACE_SCAN(ic, "Skipping disabled chan " 4942 "on band %s [%#x/%u/%#x]", 4943 lkpi_nl80211_band_name(c->band), c->hw_value, 4944 c->center_freq, c->flags); 4945 return (false); 4946 } 4947 if (isclr(ic->ic_chan_active, ieee80211_mhz2ieee(c->center_freq, 4948 lkpi_nl80211_band_to_net80211_band(c->band)))) { 4949 if (log) 4950 TRACE_SCAN(ic, "Skipping !active chan " 4951 "on band %s [%#x/%u/%#x]", 4952 lkpi_nl80211_band_name(c->band), c->hw_value, 4953 c->center_freq, c->flags); 4954 return (false); 4955 } 4956 return (true); 4957 } 4958 #endif 4959 4960 static void 4961 lkpi_ic_scan_start(struct ieee80211com *ic) 4962 { 4963 struct lkpi_hw *lhw; 4964 struct ieee80211_hw *hw; 4965 struct lkpi_vif *lvif; 4966 struct ieee80211_vif *vif; 4967 struct ieee80211_scan_state *ss; 4968 struct ieee80211vap *vap; 4969 int error; 4970 bool is_hw_scan; 4971 4972 lhw = ic->ic_softc; 4973 ss = ic->ic_scan; 4974 vap = ss->ss_vap; 4975 TRACE_SCAN(ic, "scan_flags %b", lhw->scan_flags, LKPI_LHW_SCAN_BITS); 4976 4977 LKPI_80211_LHW_SCAN_LOCK(lhw); 4978 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 4979 /* A scan is still running. */ 4980 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4981 TRACE_SCAN(ic, "Trying to start new scan while still running; " 4982 "cancelling new net80211 scan; scan_flags %b", 4983 lhw->scan_flags, LKPI_LHW_SCAN_BITS); 4984 ieee80211_cancel_scan(vap); 4985 return; 4986 } 4987 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 4988 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4989 4990 #if 0 4991 if (vap->iv_state != IEEE80211_S_SCAN) { 4992 TODO("We need to be able to scan if not in S_SCAN"); 4993 TRACE_SCAN(ic, "scan_flags %b iv_state %d", 4994 lhw->scan_flags, LKPI_LHW_SCAN_BITS, vap->iv_state); 4995 ieee80211_cancel_scan(vap); 4996 return; 4997 } 4998 #endif 4999 5000 hw = LHW_TO_HW(lhw); 5001 if (!is_hw_scan) { 5002 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 5003 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 5004 5005 lvif = VAP_TO_LVIF(vap); 5006 vif = LVIF_TO_VIF(lvif); 5007 5008 if (vap->iv_state == IEEE80211_S_SCAN) { 5009 wiphy_lock(hw->wiphy); 5010 lkpi_hw_conf_idle(hw, false); 5011 wiphy_unlock(hw->wiphy); 5012 } 5013 5014 LKPI_80211_LHW_SCAN_LOCK(lhw); 5015 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 5016 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5017 5018 lkpi_update_mcast_filter(ic); 5019 5020 TRACE_SCAN(vap->iv_ic, "Starting SW_SCAN: scan_flags %b", 5021 lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5022 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 5023 /* net80211::scan_start() handled PS for us. */ 5024 IMPROVE(); 5025 /* XXX Also means it is too late to flush queues? 5026 * need to check iv_sta_ps or overload? */ 5027 /* XXX want to adjust ss end time/ maxdwell? */ 5028 5029 } else { 5030 struct ieee80211_scan_request *hw_req; 5031 struct linuxkpi_ieee80211_channel *lc, **cpp; 5032 struct cfg80211_ssid *ssids; 5033 struct cfg80211_scan_6ghz_params *s6gp; 5034 size_t chan_len, nchan, ssids_len, s6ghzlen; 5035 int band, i, ssid_count, common_ie_len; 5036 #ifndef LKPI_80211_USE_SCANLIST 5037 int n; 5038 #endif 5039 uint32_t band_mask; 5040 uint8_t *ie, *ieend; 5041 bool running; 5042 5043 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 5044 ssids_len = ssid_count * sizeof(*ssids); 5045 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 5046 5047 band_mask = 0; 5048 nchan = 0; 5049 if (ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 5050 #ifdef LKPI_80211_USE_SCANLIST 5051 /* Avoid net80211 scan lists until it has proper scan offload support. */ 5052 for (i = ss->ss_next; i < ss->ss_last; i++) { 5053 nchan++; 5054 band = lkpi_net80211_chan_to_nl80211_band( 5055 ss->ss_chans[ss->ss_next + i]); 5056 band_mask |= (1 << band); 5057 } 5058 #else 5059 /* Instead we scan for all channels all the time. */ 5060 for (band = 0; band < NUM_NL80211_BANDS; band++) { 5061 switch (band) { 5062 case NL80211_BAND_2GHZ: 5063 case NL80211_BAND_5GHZ: 5064 break; 5065 default: 5066 continue; 5067 } 5068 if (hw->wiphy->bands[band] != NULL) { 5069 struct linuxkpi_ieee80211_channel *channels; 5070 int n; 5071 5072 band_mask |= (1 << band); 5073 5074 channels = hw->wiphy->bands[band]->channels; 5075 n = hw->wiphy->bands[band]->n_channels; 5076 for (i = 0; i < n; i++) { 5077 if (lkpi_scan_chan(&channels[i], ic, true)) 5078 nchan++; 5079 } 5080 } 5081 } 5082 #endif 5083 } else { 5084 IMPROVE("individual band scans not yet supported, only scanning first band"); 5085 /* In theory net80211 should drive this. */ 5086 /* Probably we need to add local logic for now; 5087 * need to deal with scan_complete 5088 * and cancel_scan and keep local state. 5089 * Also cut the nchan down above. 5090 */ 5091 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 5092 } 5093 5094 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 5095 5096 common_ie_len = 0; 5097 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 5098 vap->iv_wpa_ie != NULL) 5099 common_ie_len += vap->iv_wpa_ie[1]; 5100 if (vap->iv_appie_probereq != NULL) 5101 common_ie_len += vap->iv_appie_probereq->ie_len; 5102 5103 /* We would love to check this at an earlier stage... */ 5104 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 5105 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 5106 "wiphy->max_scan_ie_len %d\n", __func__, 5107 common_ie_len, hw->wiphy->max_scan_ie_len); 5108 } 5109 5110 lvif = VAP_TO_LVIF(vap); 5111 5112 hw_req = malloc(sizeof(*hw_req) + ssids_len + 5113 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 5114 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 5115 5116 hw_req->req.flags = 0; /* XXX ??? */ 5117 hw_req->req.wdev = &lvif->wdev; 5118 hw_req->req.wiphy = hw->wiphy; 5119 hw_req->req.no_cck = false; /* XXX */ 5120 5121 /* 5122 * In general setting duration[_mandatory] seems to pessimise 5123 * default scanning behaviour. We only use it for BGSCANnig 5124 * to keep the dwell times small. 5125 * Setting duration_mandatory makes this the maximum dwell 5126 * time (otherwise may be shorter). Duration is in TU. 5127 */ 5128 if ((ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) != 0) { 5129 unsigned long dwell; 5130 5131 if ((ic->ic_caps & IEEE80211_C_BGSCAN) == 0 || 5132 (vap->iv_flags & IEEE80211_F_BGSCAN) == 0) 5133 ic_printf(ic, "BGSCAN despite off: %b, %b, %b\n", 5134 ic->ic_flags_ext, IEEE80211_FEXT_BITS, 5135 vap->iv_flags, IEEE80211_F_BITS, 5136 ic->ic_caps, IEEE80211_C_BITS); 5137 5138 dwell = ss->ss_mindwell; 5139 if (dwell == 0) 5140 dwell = msecs_to_ticks(20); 5141 5142 hw_req->req.duration_mandatory = true; 5143 hw_req->req.duration = TICKS_2_USEC(dwell) / 1024; 5144 } 5145 5146 #ifdef __notyet__ 5147 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 5148 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 5149 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 5150 #endif 5151 eth_broadcast_addr(hw_req->req.bssid); 5152 5153 hw_req->req.n_channels = nchan; 5154 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 5155 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 5156 #ifdef LKPI_80211_USE_SCANLIST 5157 for (i = 0; i < nchan; i++) { 5158 *(cpp + i) = 5159 (struct linuxkpi_ieee80211_channel *)(lc + i); 5160 } 5161 /* Avoid net80211 scan lists until it has proper scan offload support. */ 5162 for (i = 0; i < nchan; i++) { 5163 struct ieee80211_channel *c; 5164 5165 c = ss->ss_chans[ss->ss_next + i]; 5166 lc->center_freq = c->ic_freq; /* XXX */ 5167 /* lc->flags */ 5168 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 5169 lc->max_power = c->ic_maxpower; 5170 /* lc-> ... */ 5171 lc++; 5172 } 5173 #else 5174 /* Add bands in reverse order for scanning. */ 5175 n = 0; 5176 for (band = NUM_NL80211_BANDS - 1; band >= 0; band--) { 5177 struct ieee80211_supported_band *supband; 5178 struct linuxkpi_ieee80211_channel *channels; 5179 5180 /* Band disabled for scanning? */ 5181 if ((band_mask & (1 << band)) == 0) 5182 continue; 5183 5184 /* Nothing to scan in band? */ 5185 supband = hw->wiphy->bands[band]; 5186 if (supband == NULL || supband->n_channels == 0) 5187 continue; 5188 5189 channels = supband->channels; 5190 for (i = 0; i < supband->n_channels; i++) { 5191 if (lkpi_scan_chan(&channels[i], ic, false)) 5192 *(cpp + n++) = &channels[i]; 5193 } 5194 } 5195 if (lkpi_order_scanlist) 5196 lkpi_scan_chan_list_resort(cpp, nchan); 5197 5198 if ((linuxkpi_debug_80211 & D80211_SCAN) != 0) { 5199 printf("%s:%d: %s SCAN Channel List (nchan=%zu): ", 5200 __func__, __LINE__, ic->ic_name, nchan); 5201 for (i = 0; i < nchan; i++) { 5202 struct linuxkpi_ieee80211_channel *xc; 5203 5204 xc = *(cpp + i); 5205 printf(" %d(%d)", 5206 ieee80211_mhz2ieee(xc->center_freq, 5207 lkpi_nl80211_band_to_net80211_band( 5208 xc->band)), 5209 xc->center_freq); 5210 } 5211 printf("\n"); 5212 } 5213 #endif 5214 5215 hw_req->req.n_ssids = ssid_count; 5216 if (hw_req->req.n_ssids > 0) { 5217 ssids = (struct cfg80211_ssid *)lc; 5218 hw_req->req.ssids = ssids; 5219 for (i = 0; i < ssid_count; i++) { 5220 ssids->ssid_len = ss->ss_ssid[i].len; 5221 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 5222 ss->ss_ssid[i].len); 5223 ssids++; 5224 } 5225 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 5226 } else { 5227 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 5228 } 5229 5230 /* 6GHz one day. */ 5231 hw_req->req.n_6ghz_params = 0; 5232 hw_req->req.scan_6ghz_params = NULL; 5233 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 5234 /* s6gp->... */ 5235 5236 ie = ieend = (uint8_t *)s6gp; 5237 /* Copy per-band IEs, copy common IEs */ 5238 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 5239 hw_req->req.ie = ie; 5240 hw_req->req.ie_len = ieend - ie; 5241 hw_req->req.scan_start = jiffies; 5242 5243 vif = LVIF_TO_VIF(lvif); 5244 5245 LKPI_80211_LHW_SCAN_LOCK(lhw); 5246 /* Re-check under lock. */ 5247 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 5248 if (!running) { 5249 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 5250 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 5251 5252 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 5253 lhw->hw_req = hw_req; 5254 } 5255 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5256 if (running) { 5257 free(hw_req, M_LKPI80211); 5258 TRACE_SCAN(ic, "Trying to start new scan while still " 5259 "running (2); cancelling new net80211 scan; " 5260 "scan_flags %b", 5261 lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5262 ieee80211_cancel_scan(vap); 5263 return; 5264 } 5265 5266 wiphy_lock(hw->wiphy); 5267 lkpi_update_mcast_filter_locked(ic); 5268 TRACE_SCAN(ic, "Starting HW_SCAN: scan_flags %b, " 5269 "ie_len %d, n_ssids %d, n_chan %d, common_ie_len %d [%d, %d]", 5270 lhw->scan_flags, LKPI_LHW_SCAN_BITS, hw_req->req.ie_len, 5271 hw_req->req.n_ssids, hw_req->req.n_channels, 5272 hw_req->ies.common_ie_len, 5273 hw_req->ies.len[NL80211_BAND_2GHZ], 5274 hw_req->ies.len[NL80211_BAND_5GHZ]); 5275 5276 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 5277 wiphy_unlock(hw->wiphy); 5278 if (error != 0) { 5279 bool scan_done; 5280 int e; 5281 5282 TRACE_SCAN(ic, "hw_scan failed; scan_flags %b, error %d", 5283 lhw->scan_flags, LKPI_LHW_SCAN_BITS, error); 5284 ieee80211_cancel_scan(vap); 5285 5286 /* 5287 * ieee80211_scan_completed must be called in either 5288 * case of error or none. So let the free happen there 5289 * and only there. 5290 * That would be fine in theory but in practice drivers 5291 * behave differently: 5292 * ath10k does not return hw_scan until after scan_complete 5293 * and can then still return an error. 5294 * rtw88 can return 1 or -EBUSY without scan_complete 5295 * iwlwifi can return various errors before scan starts 5296 * ... 5297 * So we cannot rely on that behaviour and have to check 5298 * and balance between both code paths. 5299 */ 5300 e = 0; 5301 scan_done = true; 5302 LKPI_80211_LHW_SCAN_LOCK(lhw); 5303 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 5304 5305 free(lhw->hw_req, M_LKPI80211); 5306 lhw->hw_req = NULL; 5307 /* 5308 * The ieee80211_cancel_scan() above runs in a 5309 * taskq and it may take ages for the previous 5310 * scan to clear; starting a new one right away 5311 * we run into the problem that the old one is 5312 * still active. 5313 */ 5314 e = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz); 5315 scan_done = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 5316 5317 /* 5318 * Now we can clear running if no one else did. 5319 */ 5320 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 5321 } 5322 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5323 lkpi_update_mcast_filter(ic); 5324 if (!scan_done) { 5325 ic_printf(ic, "ERROR: %s: timeout/error to wait " 5326 "for ieee80211_cancel_scan: %d\n", __func__, e); 5327 return; 5328 } 5329 5330 /* 5331 * XXX-SIGH magic number. 5332 * rtw88 has a magic "return 1" if offloading scan is 5333 * not possible. Fall back to sw scan in that case. 5334 */ 5335 if (error == 1) { 5336 /* 5337 * We need to put this into some defered context 5338 * the net80211 scan may not be done yet 5339 * (ic_flags & IEEE80211_F_SCAN) and we cannot 5340 * wait here; if we do scan_curchan_task always 5341 * runs after our timeout to finalize the scan. 5342 */ 5343 ieee80211_runtask(ic, &lvif->sw_scan_task); 5344 return; 5345 } 5346 5347 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 5348 __func__, error); 5349 } 5350 } 5351 } 5352 5353 static void 5354 lkpi_sw_scan_task(void *arg, int pending __unused) 5355 { 5356 struct lkpi_hw *lhw; 5357 struct lkpi_vif *lvif; 5358 struct ieee80211vap *vap; 5359 struct ieee80211_scan_state *ss; 5360 5361 lvif = arg; 5362 vap = LVIF_TO_VAP(lvif); 5363 lhw = vap->iv_ic->ic_softc; 5364 ss = vap->iv_ic->ic_scan; 5365 5366 LKPI_80211_LHW_SCAN_LOCK(lhw); 5367 /* 5368 * We will re-enable this at scan_end calling lkpi_enable_hw_scan(). 5369 * IEEE80211_FEXT_SCAN_OFFLOAD will be cleared by lkpi_ic_scan_start. 5370 */ 5371 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 5372 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5373 5374 TRACE_SCAN(vap->iv_ic, "Triggering SW_SCAN: pending %d, scan_flags %b", 5375 pending, lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5376 5377 /* 5378 * This will call ic_scan_start() and we will get into the right path 5379 * unless other scans started in between. 5380 */ 5381 ieee80211_start_scan(vap, 5382 IEEE80211_SCAN_ONCE, 5383 msecs_to_ticks(10000), /* 10000 ms (=~ 50 chan * 200 ms) */ 5384 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 5385 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 5386 vap->iv_des_nssid, vap->iv_des_ssid); 5387 } 5388 5389 static void 5390 lkpi_ic_scan_end(struct ieee80211com *ic) 5391 { 5392 struct lkpi_hw *lhw; 5393 bool is_hw_scan; 5394 5395 lhw = ic->ic_softc; 5396 TRACE_SCAN(ic, "scan_flags %b", lhw->scan_flags, LKPI_LHW_SCAN_BITS); 5397 5398 LKPI_80211_LHW_SCAN_LOCK(lhw); 5399 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 5400 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5401 return; 5402 } 5403 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5404 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5405 5406 if (!is_hw_scan) { 5407 struct ieee80211_scan_state *ss; 5408 struct ieee80211vap *vap; 5409 struct ieee80211_hw *hw; 5410 struct lkpi_vif *lvif; 5411 struct ieee80211_vif *vif; 5412 5413 ss = ic->ic_scan; 5414 vap = ss->ss_vap; 5415 hw = LHW_TO_HW(lhw); 5416 lvif = VAP_TO_LVIF(vap); 5417 vif = LVIF_TO_VIF(lvif); 5418 5419 lkpi_80211_mo_sw_scan_complete(hw, vif); 5420 5421 /* Send PS to stop buffering if n80211 does not for us? */ 5422 5423 if (vap->iv_state == IEEE80211_S_SCAN) { 5424 wiphy_lock(hw->wiphy); 5425 lkpi_hw_conf_idle(hw, true); 5426 wiphy_unlock(hw->wiphy); 5427 } 5428 } 5429 5430 /* 5431 * In case we disabled the hw_scan in lkpi_ic_scan_start() and 5432 * switched to swscan, re-enable hw_scan if available. 5433 */ 5434 lkpi_enable_hw_scan(lhw); 5435 5436 /* Clear the scanning chandef. */ 5437 memset(&lhw->scan_chandef, 0, sizeof(lhw->scan_chandef)); 5438 5439 LKPI_80211_LHW_SCAN_LOCK(lhw); 5440 wakeup(lhw); 5441 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5442 } 5443 5444 static void 5445 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 5446 unsigned long maxdwell) 5447 { 5448 struct lkpi_hw *lhw; 5449 bool is_hw_scan; 5450 5451 lhw = ss->ss_ic->ic_softc; 5452 TRACE_SCAN(ss->ss_ic, "scan_flags %b chan %d maxdwell %lu", 5453 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5454 ss->ss_ic->ic_curchan->ic_ieee, maxdwell); 5455 5456 LKPI_80211_LHW_SCAN_LOCK(lhw); 5457 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5458 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5459 if (!is_hw_scan) 5460 lhw->ic_scan_curchan(ss, maxdwell); 5461 } 5462 5463 static void 5464 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 5465 { 5466 struct lkpi_hw *lhw; 5467 bool is_hw_scan; 5468 5469 lhw = ss->ss_ic->ic_softc; 5470 TRACE_SCAN(ss->ss_ic, "scan_flags %b chan %d mindwell %lu", 5471 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5472 ss->ss_ic->ic_curchan->ic_ieee, ss->ss_mindwell); 5473 5474 LKPI_80211_LHW_SCAN_LOCK(lhw); 5475 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5476 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5477 if (!is_hw_scan) 5478 lhw->ic_scan_mindwell(ss); 5479 } 5480 5481 struct lkpi_ic_set_channel_iter_arg { 5482 struct linuxkpi_ieee80211_channel *chan; 5483 struct ieee80211_chanctx_conf *chanctx_conf; 5484 }; 5485 5486 static void 5487 lkpi_ic_set_channel_chanctx_iterf(struct ieee80211_hw *hw, 5488 struct ieee80211_chanctx_conf *chanctx_conf, void *arg) 5489 { 5490 struct lkpi_ic_set_channel_iter_arg *chanctx_iter_arg; 5491 5492 chanctx_iter_arg = arg; 5493 if (chanctx_iter_arg->chanctx_conf != NULL) 5494 return; 5495 5496 if (chanctx_iter_arg->chan == chanctx_conf->def.chan) 5497 chanctx_iter_arg->chanctx_conf = chanctx_conf; 5498 } 5499 5500 static void 5501 lkpi_ic_set_channel(struct ieee80211com *ic) 5502 { 5503 struct lkpi_hw *lhw; 5504 struct ieee80211_hw *hw; 5505 struct ieee80211_channel *c; 5506 struct linuxkpi_ieee80211_channel *chan; 5507 struct ieee80211_chanctx_conf *chanctx_conf; 5508 uint32_t changed; 5509 int error; 5510 bool hw_scan, scan_running; 5511 5512 IEEE80211_UNLOCK_ASSERT(ic); 5513 5514 lhw = ic->ic_softc; 5515 5516 c = ic->ic_curchan; 5517 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 5518 ic_printf(ic, "%s: Unset channel: c %p, ignoring update\n", 5519 __func__, c); 5520 return; 5521 } 5522 5523 chan = lkpi_find_lkpi80211_chan(lhw, c); 5524 if (chan == NULL) { 5525 ic_printf(ic, "%s: No channel found for c %p(%d) chan %p\n", 5526 __func__, c, c->ic_ieee, chan); 5527 return; 5528 } 5529 5530 /* 5531 * All net80211 callers call ieee80211_radiotap_chan_change(). 5532 * That means we have nothing to do ourselves. 5533 */ 5534 5535 /* If we have a hw_scan running do not switch channels. */ 5536 LKPI_80211_LHW_SCAN_LOCK(lhw); 5537 scan_running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 5538 hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 5539 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 5540 if (scan_running && hw_scan) { 5541 TRACE_SCAN(ic, "scan_flags %b chan %d nothing to do.", 5542 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5543 c->ic_ieee); 5544 /* Let us hope we set tx power levels elsewhere. */ 5545 return; 5546 } 5547 5548 hw = LHW_TO_HW(lhw); 5549 wiphy_lock(hw->wiphy); 5550 if (scan_running) { 5551 struct ieee80211vap *vap; 5552 struct lkpi_vif *lvif; 5553 struct ieee80211_vif *vif; 5554 5555 /* 5556 * For now and for scanning just pick the first VIF. 5557 * net80211 will need to grow DBDC/link_id support 5558 * for us to find the vif/chanctx otherwise. 5559 */ 5560 vap = TAILQ_FIRST(&ic->ic_vaps); 5561 lvif = VAP_TO_LVIF(vap); 5562 vif = LVIF_TO_VIF(lvif); 5563 5564 /* We always set the chandef to no-HT for scanning. */ 5565 cfg80211_chandef_create(&lhw->scan_chandef, chan, 5566 NL80211_CHAN_NO_HT); 5567 #ifdef LINUXKPI_DEBUG_80211 5568 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 5569 ic_printf(ic, "%s:%d: initialized lhw->scan_chandef\n", 5570 __func__, __LINE__); 5571 #endif 5572 5573 /* 5574 * This works for as long as we do not do BGSCANs; otherwise 5575 * it'll have to be offchan work. 5576 */ 5577 chanctx_conf = lkpi_get_chanctx_conf(hw, vif); 5578 changed = lkpi_init_chanctx_conf(hw, &lhw->scan_chandef, chanctx_conf); 5579 error = lkpi_set_chanctx_conf(hw, vif, chanctx_conf, changed, true); 5580 5581 TRACE_SCAN(ic, "scan_flags %b chan %d ???, error %d", 5582 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 5583 c->ic_ieee, error); 5584 5585 IMPROVE("max power for scanning; TODO in lkpi_80211_update_chandef"); 5586 5587 } else if (lhw->emulate_chanctx) { 5588 /* 5589 * We do not set the channel here for normal chanctx operation. 5590 * That's just a setup to fail. scan_to_auth will setup all the 5591 * other neccessary options for this to work. 5592 */ 5593 struct lkpi_ic_set_channel_iter_arg chanctx_iter_arg = { 5594 .chan = chan, 5595 .chanctx_conf = NULL, 5596 }; 5597 struct cfg80211_chan_def chandef; 5598 5599 lkpi_init_chandef(ic, &chandef, chan, c, false); 5600 5601 ieee80211_iter_chan_contexts_mtx(hw, 5602 lkpi_ic_set_channel_chanctx_iterf, &chanctx_iter_arg); 5603 5604 if (chanctx_iter_arg.chanctx_conf == NULL) { 5605 /* No chanctx found for this channel. */ 5606 struct ieee80211vap *vap; 5607 struct lkpi_vif *lvif; 5608 struct ieee80211_vif *vif; 5609 5610 /* 5611 * For now just pick the first VIF. 5612 * net80211 will need to grow DBDC/link_id support 5613 * for us to find the vif/chanctx otherwise. 5614 */ 5615 vap = TAILQ_FIRST(&ic->ic_vaps); 5616 lvif = VAP_TO_LVIF(vap); 5617 vif = LVIF_TO_VIF(lvif); 5618 5619 #ifdef LINUXKPI_DEBUG_80211 5620 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 5621 ic_printf(ic, "%s:%d: using on stack chandef\n", 5622 __func__, __LINE__); 5623 #endif 5624 chanctx_conf = lkpi_get_chanctx_conf(hw, vif); 5625 changed = lkpi_init_chanctx_conf(hw, &chandef, chanctx_conf); 5626 IMPROVE("update HT, VHT, bw, ..."); 5627 error = lkpi_set_chanctx_conf(hw, vif, chanctx_conf, changed, true); 5628 5629 } else { 5630 /* 5631 * We know we are on the same channel. 5632 * Do we really have to reset everything? 5633 */ 5634 IMPROVE("update HT, VHT, bw, ..."); 5635 5636 #ifdef LINUXKPI_DEBUG_80211 5637 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 5638 ic_printf(ic, "%s:%d: using on stack chandef\n", 5639 __func__, __LINE__); 5640 #endif 5641 5642 chanctx_conf = chanctx_iter_arg.chanctx_conf; 5643 changed = lkpi_init_chanctx_conf(hw, &chandef, chanctx_conf); 5644 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 5645 } 5646 } 5647 5648 /* Currently PS is hard coded off! Not sure it belongs here. */ 5649 IMPROVE("PS"); 5650 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 5651 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 5652 hw->conf.flags &= ~IEEE80211_CONF_PS; 5653 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 5654 if (error != 0 && error != EOPNOTSUPP) 5655 ic_printf(ic, "ERROR: %s: config %#0x returned " 5656 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 5657 error); 5658 } 5659 5660 wiphy_unlock(hw->wiphy); 5661 } 5662 5663 static struct ieee80211_node * 5664 lkpi_ic_node_alloc(struct ieee80211vap *vap, 5665 const uint8_t mac[IEEE80211_ADDR_LEN]) 5666 { 5667 struct ieee80211com *ic; 5668 struct lkpi_hw *lhw; 5669 struct ieee80211_node *ni; 5670 struct ieee80211_hw *hw; 5671 struct lkpi_sta *lsta; 5672 5673 ic = vap->iv_ic; 5674 lhw = ic->ic_softc; 5675 5676 /* We keep allocations de-coupled so we can deal with the two worlds. */ 5677 if (lhw->ic_node_alloc == NULL) 5678 return (NULL); 5679 5680 ni = lhw->ic_node_alloc(vap, mac); 5681 if (ni == NULL) 5682 return (NULL); 5683 5684 hw = LHW_TO_HW(lhw); 5685 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 5686 if (lsta == NULL) { 5687 if (lhw->ic_node_free != NULL) 5688 lhw->ic_node_free(ni); 5689 return (NULL); 5690 } 5691 5692 return (ni); 5693 } 5694 5695 static int 5696 lkpi_ic_node_init(struct ieee80211_node *ni) 5697 { 5698 struct ieee80211com *ic; 5699 struct lkpi_hw *lhw; 5700 int error; 5701 5702 ic = ni->ni_ic; 5703 lhw = ic->ic_softc; 5704 5705 if (lhw->ic_node_init != NULL) { 5706 error = lhw->ic_node_init(ni); 5707 if (error != 0) 5708 return (error); 5709 } 5710 5711 /* XXX-BZ Sync other state over. */ 5712 IMPROVE(); 5713 5714 return (0); 5715 } 5716 5717 static void 5718 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 5719 { 5720 struct ieee80211com *ic; 5721 struct lkpi_hw *lhw; 5722 5723 ic = ni->ni_ic; 5724 lhw = ic->ic_softc; 5725 5726 /* XXX-BZ remove from driver, ... */ 5727 IMPROVE(); 5728 5729 if (lhw->ic_node_cleanup != NULL) 5730 lhw->ic_node_cleanup(ni); 5731 } 5732 5733 static void 5734 lkpi_ic_node_free(struct ieee80211_node *ni) 5735 { 5736 struct ieee80211com *ic; 5737 struct lkpi_hw *lhw; 5738 struct lkpi_sta *lsta; 5739 5740 ic = ni->ni_ic; 5741 lhw = ic->ic_softc; 5742 lsta = ni->ni_drv_data; 5743 5744 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 5745 5746 /* 5747 * Pass in the original ni just in case of error we could check that 5748 * it is the same as lsta->ni. 5749 */ 5750 lkpi_lsta_free(lsta, ni); 5751 5752 if (lhw->ic_node_free != NULL) 5753 lhw->ic_node_free(ni); 5754 } 5755 5756 /* 5757 * lkpi_xmit() called from both the (*ic_raw_xmit) as well as the (*ic_transmit) 5758 * call path. 5759 * Unfortunately they have slightly different invariants. See 5760 * ieee80211_raw_output() and ieee80211_parent_xmitpkt(). 5761 * Both take care of the ni reference in case of error, and otherwise during 5762 * the callback after transmit. 5763 * The difference is that in case of error (*ic_raw_xmit) needs us to release 5764 * the mbuf, while (*ic_transmit) will free the mbuf itself. 5765 */ 5766 static int 5767 lkpi_xmit(struct ieee80211_node *ni, struct mbuf *m, 5768 const struct ieee80211_bpf_params *params __unused, 5769 bool freem) 5770 { 5771 struct lkpi_sta *lsta; 5772 int error; 5773 5774 lsta = ni->ni_drv_data; 5775 LKPI_80211_LSTA_TXQ_LOCK(lsta); 5776 #if 0 5777 if (!lsta->added_to_drv || !lsta->txq_ready) { 5778 #else 5779 /* 5780 * Backout this part of 886653492945f which breaks rtw88 or 5781 * in general drivers without (*sta_state)() but only the 5782 * legacy fallback to (*sta_add)(). 5783 */ 5784 if (!lsta->txq_ready) { 5785 #endif 5786 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 5787 if (freem) 5788 m_freem(m); 5789 return (ENETDOWN); 5790 } 5791 5792 /* Queue the packet and enqueue the task to handle it. */ 5793 error = mbufq_enqueue(&lsta->txq, m); 5794 if (error != 0) { 5795 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 5796 if (freem) 5797 m_freem(m); 5798 #ifdef LINUXKPI_DEBUG_80211 5799 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5800 ic_printf(ni->ni_ic, "%s: mbufq_enqueue failed: %d\n", 5801 __func__, error); 5802 #endif 5803 return (ENETDOWN); 5804 } 5805 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 5806 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 5807 5808 #ifdef LINUXKPI_DEBUG_80211 5809 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5810 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 5811 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 5812 mbufq_len(&lsta->txq)); 5813 #endif 5814 5815 return (0); 5816 } 5817 5818 static int 5819 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 5820 const struct ieee80211_bpf_params *params __unused) 5821 { 5822 return (lkpi_xmit(ni, m, NULL, true)); 5823 } 5824 5825 #ifdef LKPI_80211_HW_CRYPTO 5826 /* 5827 * This is a bit of a hack given we know we are operating on a 5828 * single frame and we know that hardware will deal with it. 5829 * But otherwise the enmic bit and the encrypt bit need to be 5830 * decoupled. 5831 */ 5832 static int 5833 lkpi_hw_crypto_prepare_tkip(struct ieee80211_key *k, 5834 struct ieee80211_key_conf *kc, struct sk_buff *skb) 5835 { 5836 struct ieee80211_hdr *hdr; 5837 uint32_t hlen, hdrlen; 5838 uint8_t *p; 5839 5840 /* 5841 * TKIP only happens on data. 5842 */ 5843 hdr = (void *)skb->data; 5844 if (!ieee80211_is_data_present(hdr->frame_control)) 5845 return (0); 5846 5847 /* 5848 * "enmic" (though we do not do that). 5849 */ 5850 /* any conditions to not apply this? */ 5851 if (skb_tailroom(skb) < ieee80211_crypto_get_key_txmic_len(k)) 5852 return (ENOBUFS); 5853 5854 p = skb_put(skb, ieee80211_crypto_get_key_txmic_len(k)); 5855 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_MIC_SPACE) != 0) 5856 goto encrypt; 5857 5858 /* 5859 * (*enmic) which we hopefully do not have to do with hw accel. 5860 * That means if we make it here we have a problem. 5861 */ 5862 TODO("(*enmic)"); 5863 return (ENXIO); 5864 5865 encrypt: 5866 /* 5867 * "encrypt" (though we do not do that). 5868 */ 5869 /* 5870 * Check if we have anything to do as requested by driver 5871 * or if we are done? 5872 */ 5873 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) == 0 && 5874 (kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV) == 0) 5875 return (0); 5876 5877 hlen = k->wk_cipher->ic_header; 5878 if (skb_headroom(skb) < hlen) 5879 return (ENOBUFS); 5880 5881 hdr = (void *)skb->data; 5882 hdrlen = ieee80211_hdrlen(hdr->frame_control); 5883 p = skb_push(skb, hlen); 5884 memmove(p, p + hlen, hdrlen); 5885 5886 /* If driver request space only we are done. */ 5887 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) != 0) 5888 return (0); 5889 5890 p += hdrlen; 5891 k->wk_cipher->ic_setiv(k, p); 5892 5893 /* If we make it hear we do sw encryption. */ 5894 TODO("sw encrypt"); 5895 return (ENXIO); 5896 } 5897 5898 static int 5899 lkpi_hw_crypto_prepare_ccmp(struct ieee80211_key *k, 5900 struct ieee80211_key_conf *kc, struct sk_buff *skb) 5901 { 5902 struct ieee80211_hdr *hdr; 5903 uint32_t hlen, hdrlen; 5904 uint8_t *p; 5905 5906 hdr = (void *)skb->data; 5907 5908 /* 5909 * Check if we have anythig to do as requested by driver 5910 * or if we are done? 5911 */ 5912 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) == 0 && 5913 (kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV) == 0 && 5914 /* MFP */ 5915 !((kc->flags & IEEE80211_KEY_FLAG_GENERATE_IV_MGMT) != 0 && 5916 ieee80211_is_mgmt(hdr->frame_control))) 5917 return (0); 5918 5919 hlen = k->wk_cipher->ic_header; 5920 if (skb_headroom(skb) < hlen) 5921 return (ENOBUFS); 5922 5923 hdrlen = ieee80211_hdrlen(hdr->frame_control); 5924 p = skb_push(skb, hlen); 5925 memmove(p, p + hlen, hdrlen); 5926 5927 /* If driver request space only we are done. */ 5928 if ((kc->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) != 0) 5929 return (0); 5930 5931 p += hdrlen; 5932 k->wk_cipher->ic_setiv(k, p); 5933 5934 return (0); 5935 } 5936 5937 static int 5938 lkpi_hw_crypto_prepare(struct lkpi_sta *lsta, struct ieee80211_key *k, 5939 struct sk_buff *skb) 5940 { 5941 struct ieee80211_tx_info *info; 5942 struct ieee80211_key_conf *kc; 5943 5944 KASSERT(lsta != NULL, ("%s: lsta is NULL", __func__)); 5945 KASSERT(k != NULL, ("%s: key is NULL", __func__)); 5946 KASSERT(skb != NULL, ("%s: skb is NULL", __func__)); 5947 5948 kc = lsta->kc[k->wk_keyix]; 5949 5950 info = IEEE80211_SKB_CB(skb); 5951 info->control.hw_key = kc; 5952 5953 /* MUST NOT happen. KASSERT? */ 5954 if (kc == NULL) { 5955 ic_printf(lsta->ni->ni_ic, "%s: lsta %p k %p skb %p, " 5956 "kc is NULL on hw crypto offload\n", __func__, lsta, k, skb); 5957 return (ENXIO); 5958 } 5959 5960 switch (kc->cipher) { 5961 case WLAN_CIPHER_SUITE_TKIP: 5962 return (lkpi_hw_crypto_prepare_tkip(k, kc, skb)); 5963 case WLAN_CIPHER_SUITE_CCMP: 5964 return (lkpi_hw_crypto_prepare_ccmp(k, kc, skb)); 5965 case WLAN_CIPHER_SUITE_GCMP: 5966 return (lkpi_hw_crypto_prepare_ccmp(k, kc, skb)); 5967 case WLAN_CIPHER_SUITE_WEP40: 5968 case WLAN_CIPHER_SUITE_WEP104: 5969 case WLAN_CIPHER_SUITE_CCMP_256: 5970 case WLAN_CIPHER_SUITE_GCMP_256: 5971 case WLAN_CIPHER_SUITE_AES_CMAC: 5972 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 5973 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 5974 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 5975 default: 5976 ic_printf(lsta->ni->ni_ic, "%s: lsta %p k %p kc %p skb %p, " 5977 "unsupported cipher suite %u (%s)\n", __func__, lsta, k, kc, 5978 skb, kc->cipher, lkpi_cipher_suite_to_name(kc->cipher)); 5979 return (EOPNOTSUPP); 5980 } 5981 } 5982 5983 static uint8_t 5984 lkpi_hw_crypto_tailroom(struct lkpi_sta *lsta, struct ieee80211_key *k) 5985 { 5986 struct ieee80211_key_conf *kc; 5987 5988 kc = lsta->kc[k->wk_keyix]; 5989 if (kc == NULL) 5990 return (0); 5991 5992 IMPROVE("which other flags need tailroom?"); 5993 if (kc->flags & (IEEE80211_KEY_FLAG_PUT_MIC_SPACE)) 5994 return (32); /* Large enough to hold everything and pow2. */ 5995 5996 return (0); 5997 } 5998 #endif 5999 6000 static void 6001 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 6002 { 6003 struct ieee80211_node *ni; 6004 struct ieee80211_frame *wh; 6005 struct ieee80211_key *k; 6006 struct sk_buff *skb; 6007 struct ieee80211com *ic; 6008 struct lkpi_hw *lhw; 6009 struct ieee80211_hw *hw; 6010 struct lkpi_vif *lvif; 6011 struct ieee80211_vif *vif; 6012 struct ieee80211_channel *c; 6013 struct ieee80211_tx_control control; 6014 struct ieee80211_tx_info *info; 6015 struct ieee80211_sta *sta; 6016 struct ieee80211_hdr *hdr; 6017 struct lkpi_txq *ltxq; 6018 void *buf; 6019 ieee80211_keyix keyix; 6020 uint8_t ac, tid, tailroom; 6021 6022 M_ASSERTPKTHDR(m); 6023 #ifdef LINUXKPI_DEBUG_80211 6024 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 6025 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 6026 #endif 6027 6028 ni = lsta->ni; 6029 ieee80211_output_seqno_assign(ni, -1, m); 6030 6031 k = NULL; 6032 keyix = IEEE80211_KEYIX_NONE; 6033 wh = mtod(m, struct ieee80211_frame *); 6034 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 6035 6036 #ifdef LKPI_80211_HW_CRYPTO 6037 if (lkpi_hwcrypto) { 6038 k = ieee80211_crypto_get_txkey(ni, m); 6039 if (k != NULL && lsta->kc[k->wk_keyix] != NULL) 6040 keyix = k->wk_keyix; 6041 } 6042 #endif 6043 6044 /* Encrypt the frame if need be. */ 6045 if (keyix == IEEE80211_KEYIX_NONE) { 6046 /* Retrieve key for TX && do software encryption. */ 6047 k = ieee80211_crypto_encap(ni, m); 6048 if (k == NULL) { 6049 ieee80211_free_node(ni); 6050 m_freem(m); 6051 return; 6052 } 6053 } 6054 } 6055 6056 ic = ni->ni_ic; 6057 lhw = ic->ic_softc; 6058 hw = LHW_TO_HW(lhw); 6059 c = ni->ni_chan; 6060 6061 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 6062 struct lkpi_radiotap_tx_hdr *rtap; 6063 6064 rtap = &lhw->rtap_tx; 6065 rtap->wt_flags = 0; 6066 if (k != NULL) 6067 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 6068 if (m->m_flags & M_FRAG) 6069 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 6070 IMPROVE(); 6071 rtap->wt_rate = 0; 6072 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 6073 rtap->wt_chan_freq = htole16(c->ic_freq); 6074 rtap->wt_chan_flags = htole16(c->ic_flags); 6075 } 6076 6077 ieee80211_radiotap_tx(ni->ni_vap, m); 6078 } 6079 6080 #ifdef LKPI_80211_HW_CRYPTO 6081 if (lkpi_hwcrypto && keyix != IEEE80211_KEYIX_NONE) 6082 tailroom = lkpi_hw_crypto_tailroom(lsta, k); 6083 else 6084 #endif 6085 tailroom = 0; 6086 6087 /* 6088 * net80211 should handle hw->extra_tx_headroom. 6089 * Though for as long as we are copying we don't mind. 6090 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 6091 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 6092 */ 6093 skb = dev_alloc_skb(hw->extra_tx_headroom + tailroom + m->m_pkthdr.len); 6094 if (skb == NULL) { 6095 static uint8_t skb_alloc_failures = 0; 6096 6097 if (skb_alloc_failures++ == 0) { 6098 int tid; 6099 6100 sta = LSTA_TO_STA(lsta); 6101 ic_printf(ic, "ERROR %s: skb alloc failed %d + %d, lsta %p sta %p ni %p\n", 6102 __func__, hw->extra_tx_headroom, m->m_pkthdr.len, lsta, sta, ni); 6103 for (tid = 0; tid < nitems(sta->txq); tid++) { 6104 if (sta->txq[tid] == NULL) 6105 continue; 6106 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 6107 ic_printf(ic, " tid %d ltxq %p flags %b skb_queue_len %u\n", 6108 tid, ltxq, ltxq->flags, LKPI_TXQ_FLAGS_BITS, skb_queue_len(<xq->skbq)); 6109 } 6110 } 6111 ieee80211_free_node(ni); 6112 m_freem(m); 6113 return; 6114 } 6115 skb_reserve(skb, hw->extra_tx_headroom); 6116 6117 /* XXX-BZ we need a SKB version understanding mbuf. */ 6118 /* Save the mbuf for ieee80211_tx_complete(). */ 6119 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 6120 skb->m = m; 6121 #if 0 6122 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 6123 #else 6124 buf = skb_put(skb, m->m_pkthdr.len); 6125 m_copydata(m, 0, m->m_pkthdr.len, buf); 6126 #endif 6127 /* Save the ni. */ 6128 m->m_pkthdr.PH_loc.ptr = ni; 6129 6130 lvif = VAP_TO_LVIF(ni->ni_vap); 6131 vif = LVIF_TO_VIF(lvif); 6132 6133 hdr = (void *)skb->data; 6134 tid = linuxkpi_ieee80211_get_tid(hdr, true); 6135 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 6136 if (!ieee80211_is_data(hdr->frame_control)) { 6137 /* MGMT and CTRL frames go on TID 7/VO. */ 6138 skb->priority = 7; 6139 ac = IEEE80211_AC_VO; 6140 } else { 6141 /* Other non-QOS traffic goes to BE. */ 6142 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 6143 skb->priority = 0; 6144 ac = IEEE80211_AC_BE; 6145 } 6146 } else { 6147 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 6148 ac = ieee80211e_up_to_ac[tid & 7]; 6149 } 6150 skb_set_queue_mapping(skb, ac); 6151 6152 info = IEEE80211_SKB_CB(skb); 6153 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 6154 /* Slight delay; probably only happens on scanning so fine? */ 6155 if (c == NULL || c == IEEE80211_CHAN_ANYC) 6156 c = ic->ic_curchan; 6157 info->band = lkpi_net80211_chan_to_nl80211_band(c); 6158 info->hw_queue = vif->hw_queue[ac]; 6159 if ((m->m_flags & M_EAPOL) != 0) { 6160 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 6161 info->flags |= IEEE80211_TX_CTL_USE_MINRATE; /* mt76 */ 6162 TRACE_RATES("M_EAPOL -> TX_CTL_USE_MINRATE"); 6163 } 6164 info->control.vif = vif; 6165 6166 /* IMPROVE("MLO"); */ 6167 info->control.flags |= 6168 u32_encode_bits(IEEE80211_LINK_UNSPECIFIED, IEEE80211_TX_CTRL_MLO_LINK); 6169 6170 if (tid != IEEE80211_NONQOS_TID) { 6171 struct ieee80211_tx_ampdu *tap; 6172 6173 tap = &ni->ni_tx_ampdu[tid]; 6174 if (ieee80211_is_data_qos(hdr->frame_control) && 6175 !ieee80211_is_qos_nullfunc(hdr->frame_control) && 6176 !is_multicast_ether_addr(hdr->addr1) && 6177 IEEE80211_AMPDU_RUNNING(tap)) 6178 info->flags |= IEEE80211_TX_CTL_AMPDU; 6179 } 6180 6181 /* XXX-BZ info->control.rates for non-HW rate control and injected packets. */ 6182 #ifdef __notyet__ 6183 #ifdef LKPI_80211_HT 6184 info->control.rts_cts_rate_idx= 6185 info->control.use_rts= /* RTS */ 6186 info->control.use_cts_prot= /* RTS/CTS*/ 6187 #endif 6188 #endif 6189 6190 sta = LSTA_TO_STA(lsta); 6191 #ifdef LKPI_80211_HW_CRYPTO 6192 if (lkpi_hwcrypto && keyix != IEEE80211_KEYIX_NONE) { 6193 int error; 6194 6195 error = lkpi_hw_crypto_prepare(lsta, k, skb); 6196 if (error != 0) { 6197 /* 6198 * We only have to free the skb which will free the 6199 * mbuf and release the reference on the ni. 6200 */ 6201 dev_kfree_skb(skb); 6202 return; 6203 } 6204 /* Reset header as data might have moved. */ 6205 hdr = (void *)skb->data; 6206 } 6207 #endif 6208 6209 IMPROVE(); 6210 6211 ltxq = NULL; 6212 if (!ieee80211_is_data_present(hdr->frame_control)) { 6213 if (vif->type == NL80211_IFTYPE_STATION && 6214 lsta->added_to_drv && 6215 sta->txq[IEEE80211_NUM_TIDS] != NULL) 6216 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 6217 } else if (lsta->added_to_drv && 6218 sta->txq[skb->priority] != NULL) { 6219 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 6220 } 6221 if (ltxq == NULL) 6222 goto ops_tx; 6223 6224 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 6225 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 6226 6227 LKPI_80211_LTXQ_LOCK(ltxq); 6228 skb_queue_tail(<xq->skbq, skb); 6229 ltxq->frms_enqueued++; 6230 #ifdef LINUXKPI_DEBUG_80211 6231 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 6232 printf("%s:%d mo_wake_tx_queue :: %d %lu lsta %p sta %p " 6233 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 6234 "WAKE_TX_Q ac %d prio %u qmap %u\n", 6235 __func__, __LINE__, 6236 curthread->td_tid, jiffies, 6237 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 6238 skb_queue_len(<xq->skbq), ltxq->txq.ac, 6239 ltxq->txq.tid, ac, skb->priority, skb->qmap); 6240 #endif 6241 LKPI_80211_LTXQ_UNLOCK(ltxq); 6242 wiphy_lock(hw->wiphy); 6243 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq, true); 6244 wiphy_unlock(hw->wiphy); 6245 return; 6246 6247 ops_tx: 6248 #ifdef LINUXKPI_DEBUG_80211 6249 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 6250 printf("%s:%d mo_tx :: lsta %p { added_to_drv %d } sta %p " 6251 "ni %p %6D skb %p TX ac %d prio %u qmap %u\n", 6252 __func__, __LINE__, lsta, lsta->added_to_drv, sta, 6253 ni, ni->ni_macaddr, ":", skb, ac, skb->priority, skb->qmap); 6254 #endif 6255 memset(&control, 0, sizeof(control)); 6256 if (lsta->added_to_drv) 6257 control.sta = sta; 6258 wiphy_lock(hw->wiphy); 6259 lkpi_80211_mo_tx(hw, &control, skb); 6260 lsta->frms_tx++; 6261 wiphy_unlock(hw->wiphy); 6262 } 6263 6264 static void 6265 lkpi_80211_txq_task(void *ctx, int pending) 6266 { 6267 struct lkpi_sta *lsta; 6268 struct mbufq mq; 6269 struct mbuf *m; 6270 bool shall_tx; 6271 6272 lsta = ctx; 6273 6274 #ifdef LINUXKPI_DEBUG_80211 6275 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 6276 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 6277 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 6278 pending, mbufq_len(&lsta->txq)); 6279 #endif 6280 6281 mbufq_init(&mq, IFQ_MAXLEN); 6282 6283 LKPI_80211_LSTA_TXQ_LOCK(lsta); 6284 /* 6285 * Do not re-check lsta->txq_ready here; we may have a pending 6286 * disassoc/deauth frame still. On the contrary if txq_ready is 6287 * false we do not have a valid sta anymore in the firmware so no 6288 * point to try to TX. 6289 * We also use txq_ready as a semaphore and will drain the txq manually 6290 * if needed on our way towards SCAN/INIT in the state machine. 6291 */ 6292 #if 0 6293 shall_tx = lsta->added_to_drv && lsta->txq_ready; 6294 #else 6295 /* 6296 * Backout this part of 886653492945f which breaks rtw88 or 6297 * in general drivers without (*sta_state)() but only the 6298 * legacy fallback to (*sta_add)(). 6299 */ 6300 shall_tx = lsta->txq_ready; 6301 #endif 6302 if (__predict_true(shall_tx)) 6303 mbufq_concat(&mq, &lsta->txq); 6304 /* 6305 * else a state change will push the packets out manually or 6306 * lkpi_lsta_free() will drain the lsta->txq and free the mbufs. 6307 */ 6308 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 6309 6310 m = mbufq_dequeue(&mq); 6311 while (m != NULL) { 6312 lkpi_80211_txq_tx_one(lsta, m); 6313 m = mbufq_dequeue(&mq); 6314 } 6315 } 6316 6317 static int 6318 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 6319 { 6320 6321 /* XXX TODO */ 6322 IMPROVE(); 6323 6324 /* Quick and dirty cheating hack. */ 6325 struct ieee80211_node *ni; 6326 6327 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 6328 return (lkpi_xmit(ni, m, NULL, false)); 6329 } 6330 6331 #ifdef LKPI_80211_HT 6332 static int 6333 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 6334 const uint8_t *frm, const uint8_t *efrm) 6335 { 6336 struct ieee80211com *ic; 6337 struct lkpi_hw *lhw; 6338 6339 ic = ni->ni_ic; 6340 lhw = ic->ic_softc; 6341 6342 TRACEOK("recv_action called"); 6343 6344 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 6345 } 6346 6347 static int 6348 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 6349 { 6350 struct ieee80211com *ic; 6351 struct lkpi_hw *lhw; 6352 6353 ic = ni->ni_ic; 6354 lhw = ic->ic_softc; 6355 6356 TRACEOK("send_action with action %d called", action); 6357 6358 return (lhw->ic_send_action(ni, category, action, sa)); 6359 } 6360 6361 6362 static int 6363 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 6364 { 6365 struct ieee80211com *ic; 6366 struct lkpi_hw *lhw; 6367 6368 ic = ni->ni_ic; 6369 lhw = ic->ic_softc; 6370 6371 TRACEOK("ieee80211_ampdu_enable called"); 6372 6373 return (lhw->ic_ampdu_enable(ni, tap)); 6374 } 6375 6376 /* 6377 * (*ic_addba_request)() is called by ieee80211_ampdu_request() before 6378 * calling send_action(CAT_BA, BA_ADDBA_REQUEST). 6379 * 6380 * NB: returns 0 on ERROR! 6381 */ 6382 static int 6383 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 6384 int dialogtoken, int baparamset, int batimeout) 6385 { 6386 struct ieee80211com *ic; 6387 struct lkpi_hw *lhw; 6388 struct ieee80211_hw *hw; 6389 struct ieee80211vap *vap; 6390 struct lkpi_vif *lvif; 6391 struct ieee80211_vif *vif; 6392 struct lkpi_sta *lsta; 6393 struct ieee80211_sta *sta; 6394 struct ieee80211_ampdu_params params = { }; 6395 int error; 6396 6397 ic = ni->ni_ic; 6398 lhw = ic->ic_softc; 6399 hw = LHW_TO_HW(lhw); 6400 vap = ni->ni_vap; 6401 lvif = VAP_TO_LVIF(vap); 6402 vif = LVIF_TO_VIF(lvif); 6403 lsta = ni->ni_drv_data; 6404 sta = LSTA_TO_STA(lsta); 6405 6406 TRACEOK("ADDBA REQ tid %u", tap->txa_tid); 6407 6408 if (!lsta->added_to_drv) { 6409 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6410 __func__, lsta, ni, sta); 6411 return (0); 6412 } 6413 6414 params.sta = sta; 6415 params.action = IEEE80211_AMPDU_TX_START; 6416 /* Keep 0 here! */ 6417 params.buf_size = 0; 6418 params.timeout = 0; 6419 params.ssn = tap->txa_start & (IEEE80211_SEQ_RANGE-1); 6420 params.tid = tap->txa_tid; 6421 params.amsdu = false; 6422 6423 /* We get called from if_transmit all the way up unlocked in net80211. */ 6424 IEEE80211_UNLOCK_ASSERT(ic); 6425 wiphy_lock(hw->wiphy); 6426 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6427 wiphy_unlock(hw->wiphy); 6428 if (error == IEEE80211_AMPDU_TX_START_IMMEDIATE) { 6429 ic_printf(ic, "%s: mo_ampdu_action returned AMPDU_TX_START_IMMEDIATE. " 6430 "ni %p tap %p\n", __func__, ni, tap); 6431 } else if (error != 0) { 6432 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 6433 __func__, error, ni, tap); 6434 return (0); 6435 } 6436 6437 if (sta->txq[tap->txa_tid] != NULL) { 6438 struct lkpi_txq *ltxq; 6439 6440 ltxq = TXQ_TO_LTXQ(sta->txq[tap->txa_tid]); 6441 TRACEOK("ADDBA REQ ltxq tid %u flags %b qlen %d", tap->txa_tid, 6442 ltxq->flags, LKPI_TXQ_FLAGS_BITS, skb_queue_len(<xq->skbq)); 6443 ltxq->flags |= LKPI_TXQ_STOPPED_BA; 6444 } 6445 6446 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 6447 } 6448 6449 /* 6450 * (*ic_addba_response)() is called from ht_recv_action_ba_addba_response() 6451 * and calls the default ieee80211_addba_response() which always returns 1. 6452 * 6453 * NB: No error checking in net80211! 6454 * Staying with 0 is an error. 6455 */ 6456 static int 6457 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 6458 int status, int baparamset, int batimeout) 6459 { 6460 struct ieee80211com *ic; 6461 struct lkpi_hw *lhw; 6462 struct ieee80211_hw *hw; 6463 struct ieee80211vap *vap; 6464 struct lkpi_vif *lvif; 6465 struct ieee80211_vif *vif; 6466 struct lkpi_sta *lsta; 6467 struct ieee80211_sta *sta; 6468 struct ieee80211_ampdu_params params = { }; 6469 int error; 6470 6471 ic = ni->ni_ic; 6472 lhw = ic->ic_softc; 6473 hw = LHW_TO_HW(lhw); 6474 vap = ni->ni_vap; 6475 lvif = VAP_TO_LVIF(vap); 6476 vif = LVIF_TO_VIF(lvif); 6477 lsta = ni->ni_drv_data; 6478 sta = LSTA_TO_STA(lsta); 6479 6480 TRACEOK("ADDBA RESP status %d (0 == SUCCESS) tid %u", status, tap->txa_tid); 6481 6482 if (!lsta->added_to_drv) { 6483 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6484 __func__, lsta, ni, sta); 6485 return (0); 6486 } 6487 6488 if (status == IEEE80211_STATUS_SUCCESS) { 6489 params.sta = sta; 6490 params.action = IEEE80211_AMPDU_TX_OPERATIONAL; 6491 params.buf_size = tap->txa_wnd; 6492 params.timeout = 0; 6493 params.ssn = 0; 6494 params.tid = tap->txa_tid; 6495 if ((tap->txa_flags & IEEE80211_AGGR_AMSDU) != 0) 6496 params.amsdu = true; 6497 else 6498 params.amsdu = false; 6499 } else { 6500 /* We need to free the allocated resources. */ 6501 params.sta = sta; 6502 switch (status) { 6503 /* params.action = FLUSH, FLUSH_CONT */ 6504 default: 6505 params.action = IEEE80211_AMPDU_TX_STOP_CONT; 6506 break; 6507 } 6508 params.buf_size = 0; 6509 params.timeout = 0; 6510 params.ssn = 0; 6511 params.tid = tap->txa_tid; 6512 params.amsdu = false; 6513 } 6514 6515 /* We are called all they way up from ieee80211_input* without lock. */ 6516 wiphy_lock(hw->wiphy); 6517 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6518 wiphy_unlock(hw->wiphy); 6519 if (error != 0) { 6520 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 6521 __func__, error, ni, tap); 6522 return (0); 6523 } 6524 6525 if (sta->txq[tap->txa_tid] != NULL) { 6526 struct lkpi_txq *ltxq; 6527 6528 ltxq = TXQ_TO_LTXQ(sta->txq[tap->txa_tid]); 6529 TRACEOK("ADDBA RESP ltxq tid %u flags %b qlen %d", tap->txa_tid, 6530 ltxq->flags, LKPI_TXQ_FLAGS_BITS, skb_queue_len(<xq->skbq)); 6531 ltxq->flags &= ~LKPI_TXQ_STOPPED_BA; 6532 6533 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tap->txa_tid], true); 6534 } 6535 6536 IMPROVE_HT("who unleashes the TXQ? and when?, do we need to ni->ni_txseqs[tid] = tap->txa_start & 0xfff;"); 6537 6538 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 6539 } 6540 6541 /* 6542 * (*ic_addba_stop)() is called from ampdu_tx_stop(), ht_recv_action_ba_delba(), 6543 * and ieee80211_ampdu_stop() and calls the default ieee80211_addba_stop(). 6544 */ 6545 static void 6546 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 6547 { 6548 struct ieee80211com *ic; 6549 struct lkpi_hw *lhw; 6550 struct ieee80211_hw *hw; 6551 struct ieee80211vap *vap; 6552 struct lkpi_vif *lvif; 6553 struct ieee80211_vif *vif; 6554 struct lkpi_sta *lsta; 6555 struct ieee80211_sta *sta; 6556 struct ieee80211_ampdu_params params = { }; 6557 int error; 6558 6559 ic = ni->ni_ic; 6560 lhw = ic->ic_softc; 6561 hw = LHW_TO_HW(lhw); 6562 vap = ni->ni_vap; 6563 lvif = VAP_TO_LVIF(vap); 6564 vif = LVIF_TO_VIF(lvif); 6565 lsta = ni->ni_drv_data; 6566 sta = LSTA_TO_STA(lsta); 6567 6568 if (!lsta->added_to_drv) { 6569 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6570 __func__, lsta, ni, sta); 6571 goto n80211; 6572 } 6573 6574 /* We need to free the allocated resources. */ 6575 params.sta = sta; 6576 IMPROVE("net80211 does not provide a reason to us"); 6577 params.action = IEEE80211_AMPDU_TX_STOP_CONT; /* params.action = FLUSH, FLUSH_CONT */ 6578 params.buf_size = 0; 6579 params.timeout = 0; 6580 params.ssn = 0; 6581 params.tid = tap->txa_tid; 6582 params.amsdu = false; 6583 6584 IEEE80211_UNLOCK(ic); 6585 wiphy_lock(hw->wiphy); 6586 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6587 wiphy_unlock(hw->wiphy); 6588 IEEE80211_LOCK(ic); 6589 if (error != 0) { 6590 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p tap %p\n", 6591 __func__, error, ni, tap); 6592 goto n80211; 6593 } 6594 6595 IMPROVE_HT("anyting else?"); 6596 6597 n80211: 6598 lhw->ic_addba_stop(ni, tap); 6599 } 6600 6601 static void 6602 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 6603 { 6604 struct ieee80211com *ic; 6605 struct lkpi_hw *lhw; 6606 struct lkpi_sta *lsta; 6607 struct ieee80211_sta *sta; 6608 6609 ic = ni->ni_ic; 6610 lhw = ic->ic_softc; 6611 lsta = ni->ni_drv_data; 6612 sta = LSTA_TO_STA(lsta); 6613 6614 TRACEOK("ADDBA RESP TIMEO tid %u", tap->txa_tid); 6615 6616 IMPROVE_HT(); 6617 6618 if (!lsta->added_to_drv) { 6619 ic_printf(ic, "%s: lsta %p ni %p, sta %p not added to firmware\n", 6620 __func__, lsta, ni, sta); 6621 goto n80211; 6622 } 6623 6624 /* We need to re-enable the txq and get packets out. */ 6625 if (sta->txq[tap->txa_tid] != NULL) { 6626 struct lkpi_txq *ltxq; 6627 struct ieee80211_hw *hw; 6628 6629 ltxq = TXQ_TO_LTXQ(sta->txq[tap->txa_tid]); 6630 TRACEOK("ADDBA RESP TIMEO ltxq tid %u flags %b qlen %d", 6631 tap->txa_tid, ltxq->flags, LKPI_TXQ_FLAGS_BITS, 6632 skb_queue_len(<xq->skbq)); 6633 ltxq->flags &= ~LKPI_TXQ_STOPPED_BA; 6634 6635 hw = LHW_TO_HW(lhw); 6636 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tap->txa_tid], true); 6637 } 6638 6639 n80211: 6640 lhw->ic_addba_response_timeout(ni, tap); 6641 } 6642 6643 static void 6644 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 6645 int status) 6646 { 6647 struct ieee80211com *ic; 6648 struct lkpi_hw *lhw; 6649 6650 ic = ni->ni_ic; 6651 lhw = ic->ic_softc; 6652 6653 IMPROVE_HT(); 6654 6655 lhw->ic_bar_response(ni, tap, status); 6656 } 6657 6658 static int 6659 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 6660 int baparamset, int batimeout, int baseqctl) 6661 { 6662 struct ieee80211com *ic; 6663 struct lkpi_hw *lhw; 6664 struct ieee80211_hw *hw; 6665 struct ieee80211vap *vap; 6666 struct lkpi_vif *lvif; 6667 struct ieee80211_vif *vif; 6668 struct lkpi_sta *lsta; 6669 struct ieee80211_sta *sta; 6670 struct ieee80211_ampdu_params params = { }; 6671 int error; 6672 6673 ic = ni->ni_ic; 6674 lhw = ic->ic_softc; 6675 hw = LHW_TO_HW(lhw); 6676 vap = ni->ni_vap; 6677 lvif = VAP_TO_LVIF(vap); 6678 vif = LVIF_TO_VIF(lvif); 6679 lsta = ni->ni_drv_data; 6680 sta = LSTA_TO_STA(lsta); 6681 6682 IEEE80211_UNLOCK_ASSERT(ic); 6683 6684 if (!lsta->added_to_drv) { 6685 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p not added to firmware\n", 6686 __func__, lsta, ni, vap, sta); 6687 return (-ENXIO); 6688 } 6689 6690 if (lsta->state != IEEE80211_STA_AUTHORIZED) { 6691 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p state %d not AUTHORIZED\n", 6692 __func__, lsta, ni, vap, sta, lsta->state); 6693 return (-ENXIO); 6694 } 6695 6696 params.sta = sta; 6697 params.action = IEEE80211_AMPDU_RX_START; 6698 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 6699 if (params.buf_size == 0) 6700 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 6701 else 6702 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 6703 if (hw->max_rx_aggregation_subframes > 0 && 6704 params.buf_size > hw->max_rx_aggregation_subframes) 6705 params.buf_size = hw->max_rx_aggregation_subframes; 6706 params.timeout = le16toh(batimeout); 6707 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 6708 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 6709 6710 /* Based on net80211::ampdu_rx_start(). */ 6711 if ((vap->iv_htcaps & IEEE80211_HTC_RX_AMSDU_AMPDU) && 6712 (_IEEE80211_MASKSHIFT(baparamset, IEEE80211_BAPS_AMSDU))) 6713 params.amsdu = true; 6714 else 6715 params.amsdu = false; 6716 6717 wiphy_lock(hw->wiphy); 6718 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6719 wiphy_unlock(hw->wiphy); 6720 if (error != 0) { 6721 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 6722 __func__, error, ni, rap); 6723 return (error); 6724 } 6725 6726 if (!ieee80211_hw_check(hw, SUPPORTS_REORDERING_BUFFER)) { 6727 IMPROVE("%s: TODO: SUPPORTS_REORDERING_BUFFER not set; check net80211\n", __func__); 6728 } 6729 6730 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 6731 6732 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 6733 return (error); 6734 } 6735 6736 static void 6737 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 6738 { 6739 struct ieee80211com *ic; 6740 struct lkpi_hw *lhw; 6741 struct ieee80211_hw *hw; 6742 struct ieee80211vap *vap; 6743 struct lkpi_vif *lvif; 6744 struct ieee80211_vif *vif; 6745 struct lkpi_sta *lsta; 6746 struct ieee80211_sta *sta; 6747 struct ieee80211_ampdu_params params = { }; 6748 int error; 6749 uint8_t tid; 6750 bool ic_locked; 6751 6752 ic = ni->ni_ic; 6753 lhw = ic->ic_softc; 6754 6755 /* 6756 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 6757 * we did not START. Some drivers pass it down to firmware which will 6758 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 6759 * ieee80211_ht_node_init() amongst others which will iterate over all 6760 * tid and call ic_ampdu_rx_stop() unconditionally. 6761 * XXX net80211 should probably be more "gentle" in these cases and 6762 * track some state itself. 6763 */ 6764 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 6765 goto net80211_only; 6766 6767 hw = LHW_TO_HW(lhw); 6768 vap = ni->ni_vap; 6769 lvif = VAP_TO_LVIF(vap); 6770 vif = LVIF_TO_VIF(lvif); 6771 lsta = ni->ni_drv_data; 6772 if (lsta == NULL) { 6773 ic_printf(ic, "%s: lsta %p ni %p vap %p, lsta is NULL\n", 6774 __func__, lsta, ni, vap); 6775 goto net80211_only; 6776 } 6777 sta = LSTA_TO_STA(lsta); 6778 6779 if (!lsta->added_to_drv) { 6780 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p not added to firmware\n", 6781 __func__, lsta, ni, vap, sta); 6782 goto net80211_only; 6783 } 6784 6785 if (lsta->state != IEEE80211_STA_AUTHORIZED) { 6786 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p state %d not AUTHORIZED\n", 6787 __func__, lsta, ni, vap, sta, lsta->state); 6788 goto net80211_only; 6789 } 6790 6791 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 6792 for (tid = 0; tid < WME_NUM_TID; tid++) { 6793 if (&ni->ni_rx_ampdu[tid] == rap) 6794 break; 6795 } 6796 if (tid == WME_NUM_TID) { 6797 ic_printf(ic, "%s: lsta %p ni %p vap %p, sta %p TID not found\n", 6798 __func__, lsta, ni, vap, sta); 6799 goto net80211_only; 6800 } 6801 6802 params.sta = sta; 6803 params.action = IEEE80211_AMPDU_RX_STOP; 6804 params.buf_size = 0; 6805 params.timeout = 0; 6806 params.ssn = 0; 6807 params.tid = tid; 6808 params.amsdu = false; 6809 6810 ic_locked = IEEE80211_IS_LOCKED(ic); 6811 if (ic_locked) 6812 IEEE80211_UNLOCK(ic); 6813 wiphy_lock(hw->wiphy); 6814 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 6815 wiphy_unlock(hw->wiphy); 6816 if (ic_locked) 6817 IEEE80211_LOCK(ic); 6818 if (error != 0) 6819 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 6820 __func__, error, ni, rap); 6821 6822 net80211_only: 6823 lhw->ic_ampdu_rx_stop(ni, rap); 6824 } 6825 #endif 6826 6827 int 6828 linuxkpi_ieee80211_start_tx_ba_session(struct ieee80211_sta *sta, uint8_t tid, 6829 int timeout) 6830 { 6831 struct lkpi_sta *lsta; 6832 struct ieee80211_hw *hw; 6833 struct lkpi_hw *lhw; 6834 struct ieee80211_tx_ampdu *tap; 6835 int worked; 6836 6837 lsta = STA_TO_LSTA(sta); 6838 6839 /* If tid is out of range, fail gracefully. */ 6840 /* XXX-BZ are we limited to 8? */ 6841 if (tid >= IEEE80211_NUM_TIDS) { 6842 net80211_vap_printf(lsta->ni->ni_vap, "%s: tid %u out of range " 6843 ">= %u\n", __func__, tid, IEEE80211_NUM_TIDS); 6844 return (-EINVAL); 6845 } 6846 6847 hw = lsta->hw; 6848 lhw = HW_TO_LHW(hw); 6849 6850 /* No ampdu_action support, just error. */ 6851 if (lhw->ops->ampdu_action == NULL) { 6852 net80211_vap_printf(lsta->ni->ni_vap, "%s: (*ampdu_action) " 6853 "not supported\n", __func__); 6854 return (-ENOTSUPP); 6855 } 6856 6857 /* Does HW allow us to set this up? */ 6858 if (!ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { 6859 net80211_vap_printf(lsta->ni->ni_vap, "%s: !AMPDU_AGGREGATION\n", 6860 __func__); 6861 return (-ENOTSUPP); 6862 } 6863 if (ieee80211_hw_check(hw, TX_AMPDU_SETUP_IN_HW)) { 6864 net80211_vap_printf(lsta->ni->ni_vap, "%s: TX_AMPDU_SETUP_IN_HW\n", 6865 __func__); 6866 return (-EPERM); 6867 } 6868 6869 /* We need at least HT or higher support enabled. */ 6870 if (!sta->deflink.ht_cap.ht_supported && 6871 !sta->deflink.vht_cap.vht_supported && 6872 !sta->deflink.he_cap.has_he && 6873 !sta->deflink.eht_cap.has_eht) { 6874 net80211_vap_printf(lsta->ni->ni_vap, "%s: HT or later not " 6875 "supported\n", __func__); 6876 return (-EINVAL); 6877 } 6878 6879 #ifdef __notyet__ 6880 /* 6881 * We need some rate limiting/disabling in case we try too hard and 6882 * get NACKed over and over. 6883 * XXX-BZ This check should likely go to addba_req along with a counter. 6884 */ 6885 if (lsta->block_ba) 6886 return (-EACCESS); 6887 #endif 6888 6889 /* XXX-BZ locking? */ 6890 6891 /* Do we have a running session already? */ 6892 tap = &lsta->ni->ni_tx_ampdu[tid]; 6893 if (IEEE80211_AMPDU_REQUESTED(tap)) { 6894 net80211_vap_printf(lsta->ni->ni_vap, "%s: " 6895 "AMPDU requested/running\n", __func__); 6896 return (-EINPROGRESS); 6897 } 6898 6899 /* Tell net80211 to setup an aggr sessions. */ 6900 /* XXX-BZ we have no way to carry the timeout forward easily. */ 6901 worked = ieee80211_ampdu_tx_request_ext(lsta->ni, tid); 6902 TRACEOK("ieee80211_ampdu_tx_request_ext %d", worked); 6903 6904 if (worked != 1) { 6905 net80211_vap_printf(lsta->ni->ni_vap, "%s: " 6906 "ieee80211_ampdu_tx_request_ext returned %d != 1\n", 6907 __func__, worked); 6908 return (-EINVAL); 6909 } 6910 6911 /* 6912 * How do we make sure the EAPOL handshake has completed? 6913 * Let ieee80211_output do it. 6914 */ 6915 if (1) { 6916 /* Immediately trigger the setup and output of the action frame. */ 6917 worked = ieee80211_ampdu_request(lsta->ni, tap); 6918 if (worked != 1) { 6919 net80211_vap_printf(lsta->ni->ni_vap, "%s: " 6920 "ieee80211_ampdu_request returned %d != 1\n", 6921 __func__, worked); 6922 return (-EAGAIN); 6923 } 6924 } 6925 6926 return (0); 6927 } 6928 6929 static void 6930 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 6931 uint8_t *bands, int *chan_flags, enum nl80211_band band) 6932 { 6933 #ifdef LKPI_80211_HT 6934 struct ieee80211_sta_ht_cap *ht_cap; 6935 6936 ht_cap = &hw->wiphy->bands[band]->ht_cap; 6937 if (!ht_cap->ht_supported) 6938 return; 6939 6940 switch (band) { 6941 case NL80211_BAND_2GHZ: 6942 setbit(bands, IEEE80211_MODE_11NG); 6943 break; 6944 case NL80211_BAND_5GHZ: 6945 setbit(bands, IEEE80211_MODE_11NA); 6946 break; 6947 default: 6948 IMPROVE("Unsupported band %d", band); 6949 return; 6950 } 6951 6952 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 6953 6954 /* 6955 * Rather than manually checking each flag and 6956 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 6957 * simply copy the 16bits. 6958 */ 6959 ic->ic_htcaps |= ht_cap->cap; 6960 6961 /* Then deal with the other flags. */ 6962 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 6963 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 6964 #ifdef __notyet__ 6965 if (ieee80211_hw_check(hw, TX_AMSDU)) 6966 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 6967 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 6968 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 6969 IEEE80211_HTC_TX_AMSDU_AMPDU); 6970 #endif 6971 6972 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 6973 6974 /* Only add HT40 channels if supported. */ 6975 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 6976 chan_flags != NULL) 6977 *chan_flags |= NET80211_CBW_FLAG_HT40; 6978 #endif 6979 } 6980 6981 static void 6982 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 6983 int *n, struct ieee80211_channel *c) 6984 { 6985 struct lkpi_hw *lhw; 6986 struct ieee80211_hw *hw; 6987 struct linuxkpi_ieee80211_channel *channels; 6988 uint8_t bands[IEEE80211_MODE_BYTES]; 6989 int chan_flags, error, i, nchans; 6990 6991 /* Channels */ 6992 lhw = ic->ic_softc; 6993 hw = LHW_TO_HW(lhw); 6994 6995 /* NL80211_BAND_2GHZ */ 6996 nchans = 0; 6997 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 6998 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 6999 if (nchans > 0) { 7000 struct ieee80211_supported_band *supband; 7001 7002 memset(bands, 0, sizeof(bands)); 7003 chan_flags = 0; 7004 setbit(bands, IEEE80211_MODE_11B); 7005 7006 /* Check for 11g (simplified). */ 7007 supband = hw->wiphy->bands[NL80211_BAND_2GHZ]; 7008 for (i = 0; i < supband->n_bitrates; i++) { 7009 if ((supband->bitrates[i].flags & 7010 IEEE80211_RATE_MANDATORY_G) != 0) { 7011 setbit(bands, IEEE80211_MODE_11G); 7012 break; 7013 } 7014 } 7015 7016 IMPROVE("the bitrates may have flags?"); 7017 7018 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 7019 NL80211_BAND_2GHZ); 7020 7021 channels = supband->channels; 7022 for (i = 0; i < nchans && *n < maxchan; i++) { 7023 uint32_t nflags = 0; 7024 int cflags = chan_flags; 7025 7026 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 7027 ic_printf(ic, "%s: Skipping disabled chan " 7028 "[%u/%u/%#x]\n", __func__, 7029 channels[i].hw_value, 7030 channels[i].center_freq, channels[i].flags); 7031 continue; 7032 } 7033 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 7034 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 7035 if (channels[i].flags & IEEE80211_CHAN_RADAR) 7036 nflags |= IEEE80211_CHAN_DFS; 7037 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 7038 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 7039 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 7040 cflags &= ~NET80211_CBW_FLAG_VHT80; 7041 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 7042 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 7043 cflags &= ~NET80211_CBW_FLAG_HT40; 7044 7045 error = ieee80211_add_channel_cbw(c, maxchan, n, 7046 ieee80211_mhz2ieee(channels[i].center_freq, 7047 lkpi_nl80211_band_to_net80211_band(channels[i].band)), 7048 channels[i].center_freq, channels[i].max_power, 7049 nflags, bands, cflags); 7050 /* net80211::ENOBUFS: *n >= maxchans */ 7051 if (error != 0 && error != ENOBUFS) 7052 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 7053 "returned error %d\n", 7054 __func__, channels[i].hw_value, 7055 channels[i].center_freq, channels[i].flags, 7056 nflags, chan_flags, cflags, error); 7057 if (error != 0) 7058 break; 7059 } 7060 } 7061 7062 /* NL80211_BAND_5GHZ */ 7063 nchans = 0; 7064 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 7065 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 7066 if (nchans > 0) { 7067 memset(bands, 0, sizeof(bands)); 7068 chan_flags = 0; 7069 setbit(bands, IEEE80211_MODE_11A); 7070 7071 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 7072 NL80211_BAND_5GHZ); 7073 7074 #ifdef LKPI_80211_VHT 7075 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported) { 7076 7077 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 7078 ic->ic_vht_cap.vht_cap_info = 7079 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 7080 ic->ic_vht_cap.supp_mcs = 7081 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_mcs; 7082 7083 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 7084 chan_flags |= NET80211_CBW_FLAG_VHT80; 7085 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 7086 ic->ic_vht_cap.vht_cap_info)) 7087 chan_flags |= NET80211_CBW_FLAG_VHT160; 7088 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 7089 ic->ic_vht_cap.vht_cap_info)) 7090 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 7091 } 7092 #endif 7093 7094 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 7095 for (i = 0; i < nchans && *n < maxchan; i++) { 7096 uint32_t nflags = 0; 7097 int cflags = chan_flags; 7098 7099 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 7100 ic_printf(ic, "%s: Skipping disabled chan " 7101 "[%u/%u/%#x]\n", __func__, 7102 channels[i].hw_value, 7103 channels[i].center_freq, channels[i].flags); 7104 continue; 7105 } 7106 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 7107 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 7108 if (channels[i].flags & IEEE80211_CHAN_RADAR) 7109 nflags |= IEEE80211_CHAN_DFS; 7110 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 7111 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 7112 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 7113 cflags &= ~NET80211_CBW_FLAG_VHT80; 7114 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 7115 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 7116 cflags &= ~NET80211_CBW_FLAG_HT40; 7117 7118 error = ieee80211_add_channel_cbw(c, maxchan, n, 7119 ieee80211_mhz2ieee(channels[i].center_freq, 7120 lkpi_nl80211_band_to_net80211_band(channels[i].band)), 7121 channels[i].center_freq, channels[i].max_power, 7122 nflags, bands, cflags); 7123 /* net80211::ENOBUFS: *n >= maxchans */ 7124 if (error != 0 && error != ENOBUFS) 7125 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 7126 "returned error %d\n", 7127 __func__, channels[i].hw_value, 7128 channels[i].center_freq, channels[i].flags, 7129 nflags, chan_flags, cflags, error); 7130 if (error != 0) 7131 break; 7132 } 7133 } 7134 } 7135 7136 static void * 7137 lkpi_ieee80211_ifalloc(void) 7138 { 7139 struct ieee80211com *ic; 7140 7141 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 7142 7143 /* Setting these happens later when we have device information. */ 7144 ic->ic_softc = NULL; 7145 ic->ic_name = "linuxkpi"; 7146 7147 return (ic); 7148 } 7149 7150 struct ieee80211_hw * 7151 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 7152 { 7153 struct ieee80211_hw *hw; 7154 struct lkpi_hw *lhw; 7155 struct wiphy *wiphy; 7156 int ac; 7157 bool emuchanctx; 7158 7159 /* 7160 * Do certain checks before starting to allocate resources. 7161 * Store results in temporary variables. 7162 */ 7163 7164 /* ac1d519c01ca introduced emulating chanctx changes. */ 7165 emuchanctx = false; 7166 if (ops->add_chanctx == ieee80211_emulate_add_chanctx && 7167 ops->change_chanctx == ieee80211_emulate_change_chanctx && 7168 ops->remove_chanctx == ieee80211_emulate_remove_chanctx) { 7169 /* 7170 * If we emulate the chanctx ops, we must not have 7171 * assign_vif_chanctx and unassign_vif_chanctx. 7172 */ 7173 if (ops->assign_vif_chanctx != NULL || 7174 ops->unassign_vif_chanctx != NULL) { 7175 /* Fail gracefully. */ 7176 printf("%s: emulate_chanctx but " 7177 "assign_vif_chanctx %p != NULL || " 7178 "unassign_vif_chanctx %p != NULL\n", __func__, 7179 ops->assign_vif_chanctx, ops->unassign_vif_chanctx); 7180 return (NULL); 7181 } 7182 emuchanctx = true; 7183 } 7184 if (!emuchanctx && (ops->add_chanctx == ieee80211_emulate_add_chanctx || 7185 ops->change_chanctx == ieee80211_emulate_change_chanctx || 7186 ops->remove_chanctx == ieee80211_emulate_remove_chanctx)) { 7187 printf("%s: not emulating chanctx changes but emulating " 7188 "function set: %d/%d/%d\n", __func__, 7189 ops->add_chanctx == ieee80211_emulate_add_chanctx, 7190 ops->change_chanctx == ieee80211_emulate_change_chanctx, 7191 ops->remove_chanctx == ieee80211_emulate_remove_chanctx); 7192 return (NULL); 7193 } 7194 if (!emuchanctx && (ops->add_chanctx == NULL || ops->change_chanctx == NULL || 7195 ops->remove_chanctx == NULL || ops->assign_vif_chanctx == NULL || 7196 ops->unassign_vif_chanctx == NULL)) { 7197 printf("%s: not all functions set for chanctx operations " 7198 "(emulating chanctx %d): %p/%p/%p %p/%p\n", 7199 __func__, emuchanctx, 7200 ops->add_chanctx, ops->change_chanctx, ops->remove_chanctx, 7201 ops->assign_vif_chanctx, ops->unassign_vif_chanctx); 7202 return (NULL); 7203 } 7204 7205 /* Get us and the driver data also allocated. */ 7206 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 7207 if (wiphy == NULL) 7208 return (NULL); 7209 7210 lhw = wiphy_priv(wiphy); 7211 lhw->ops = ops; 7212 7213 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 7214 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 7215 spin_lock_init(&lhw->txq_lock); 7216 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 7217 LKPI_80211_LHW_MC_LOCK_INIT(lhw); 7218 TAILQ_INIT(&lhw->lvif_head); 7219 __hw_addr_init(&lhw->mc_list); 7220 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 7221 spin_lock_init(&lhw->txq_scheduled_lock[ac]); 7222 lhw->txq_generation[ac] = 1; 7223 TAILQ_INIT(&lhw->txq_scheduled[ac]); 7224 } 7225 7226 /* Chanctx_conf */ 7227 INIT_LIST_HEAD(&lhw->lchanctx_list); 7228 INIT_LIST_HEAD(&lhw->lchanctx_list_reserved); 7229 lhw->emulate_chanctx = emuchanctx; 7230 7231 /* Deferred RX path. */ 7232 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 7233 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 7234 mbufq_init(&lhw->rxq, 32 * NAPI_POLL_WEIGHT); 7235 lhw->rxq_stopped = false; 7236 7237 /* 7238 * XXX-BZ TODO make sure there is a "_null" function to all ops 7239 * not initialized. 7240 */ 7241 hw = LHW_TO_HW(lhw); 7242 hw->wiphy = wiphy; 7243 hw->conf.flags |= IEEE80211_CONF_IDLE; 7244 hw->priv = (void *)(lhw + 1); 7245 7246 /* BSD Specific. */ 7247 lhw->ic = lkpi_ieee80211_ifalloc(); 7248 7249 if (lhw->emulate_chanctx) 7250 ic_printf(lhw->ic, "Using chanctx emulation.\n"); 7251 IMPROVE(); 7252 7253 return (hw); 7254 } 7255 7256 void 7257 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 7258 { 7259 struct lkpi_hw *lhw; 7260 struct mbuf *m; 7261 int ac; 7262 7263 lhw = HW_TO_LHW(hw); 7264 free(lhw->ic, M_LKPI80211); 7265 lhw->ic = NULL; 7266 7267 /* 7268 * Drain the deferred RX path. 7269 */ 7270 LKPI_80211_LHW_RXQ_LOCK(lhw); 7271 lhw->rxq_stopped = true; 7272 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 7273 7274 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 7275 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 7276 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 7277 7278 /* Flush mbufq (make sure to release ni refs!). */ 7279 m = mbufq_dequeue(&lhw->rxq); 7280 while (m != NULL) { 7281 #ifdef LKPI_80211_USE_MTAG 7282 struct m_tag *mtag; 7283 7284 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 7285 if (mtag != NULL) { 7286 struct lkpi_80211_tag_rxni *rxni; 7287 7288 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 7289 ieee80211_free_node(rxni->ni); 7290 } 7291 #else 7292 if (m->m_pkthdr.PH_loc.ptr != NULL) { 7293 struct ieee80211_node *ni; 7294 7295 ni = m->m_pkthdr.PH_loc.ptr; 7296 ieee80211_free_node(ni); 7297 } 7298 #endif 7299 m_freem(m); 7300 m = mbufq_dequeue(&lhw->rxq); 7301 } 7302 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 7303 __func__, lhw, mbufq_len(&lhw->rxq))); 7304 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 7305 7306 wiphy_lock(hw->wiphy); 7307 /* Chanctx_conf. */ 7308 if (!list_empty_careful(&lhw->lchanctx_list)) { 7309 struct lkpi_chanctx *lchanctx, *next; 7310 struct ieee80211_chanctx_conf *chanctx_conf; 7311 7312 list_for_each_entry_safe(lchanctx, next, &lhw->lchanctx_list, entry) { 7313 if (lchanctx->added_to_drv) { 7314 /* In reality we should panic? */ 7315 chanctx_conf = &lchanctx->chanctx_conf; 7316 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 7317 } 7318 list_del(&lchanctx->entry); 7319 /* No need to reset the lchanctx here as we will free it below. */ 7320 list_add_rcu(&lchanctx->entry, &lhw->lchanctx_list_reserved); 7321 } 7322 } 7323 if (!list_empty_careful(&lhw->lchanctx_list_reserved)) { 7324 struct lkpi_chanctx *lchanctx, *next; 7325 7326 list_for_each_entry_safe(lchanctx, next, &lhw->lchanctx_list_reserved, entry) { 7327 list_del(&lchanctx->entry); 7328 if (lchanctx->added_to_drv) 7329 panic("%s: lchanctx %p on reserved list still added_to_drv\n", 7330 __func__, lchanctx); 7331 free(lchanctx, M_LKPI80211); 7332 } 7333 } 7334 wiphy_unlock(hw->wiphy); 7335 7336 LKPI_80211_LHW_MC_LOCK(lhw); 7337 lkpi_cleanup_mcast_list_locked(lhw); 7338 LKPI_80211_LHW_MC_UNLOCK(lhw); 7339 7340 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 7341 spin_lock_destroy(&lhw->txq_scheduled_lock[ac]); 7342 7343 /* Cleanup more of lhw here or in wiphy_free()? */ 7344 spin_lock_destroy(&lhw->txq_lock); 7345 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 7346 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 7347 sx_destroy(&lhw->lvif_sx); 7348 LKPI_80211_LHW_MC_LOCK_DESTROY(lhw) 7349 IMPROVE(); 7350 } 7351 7352 void 7353 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw) 7354 { 7355 struct lkpi_hw *lhw; 7356 struct ieee80211com *ic; 7357 struct device *dev; 7358 7359 lhw = HW_TO_LHW(hw); 7360 ic = lhw->ic; 7361 7362 /* Save the backpointer from net80211 to LinuxKPI. */ 7363 ic->ic_softc = lhw; 7364 7365 /* 7366 * Set a proper name before ieee80211_ifattach() if dev is set. 7367 * ath1xk also unset the dev so we need to check. 7368 * Also we will (ab)use this opportunity to register the 7369 * power management sub-children if thay exist (for suspend/resume). 7370 */ 7371 dev = wiphy_dev(hw->wiphy); 7372 if (dev != NULL) { 7373 ic->ic_name = dev_name(dev); 7374 if (dev->bsddev != NULL) { 7375 bus_identify_children(dev->bsddev); 7376 bus_enumerate_hinted_children(dev->bsddev); 7377 bus_topo_lock(); 7378 bus_attach_children(dev->bsddev); 7379 bus_topo_unlock(); 7380 } 7381 } else { 7382 TODO("adjust arguments to still have the old dev or go through " 7383 "the hoops of getting the bsddev from hw and detach; " 7384 "or do in XXX; check ath1kx drivers"); 7385 } 7386 7387 /* XXX-BZ do we also need to set wiphy name? */ 7388 } 7389 7390 struct ieee80211_hw * 7391 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 7392 { 7393 struct lkpi_hw *lhw; 7394 7395 lhw = wiphy_priv(wiphy); 7396 return (LHW_TO_HW(lhw)); 7397 } 7398 7399 static void 7400 lkpi_radiotap_attach(struct lkpi_hw *lhw) 7401 { 7402 struct ieee80211com *ic; 7403 7404 ic = lhw->ic; 7405 ieee80211_radiotap_attach(ic, 7406 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 7407 LKPI_RTAP_TX_FLAGS_PRESENT, 7408 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 7409 LKPI_RTAP_RX_FLAGS_PRESENT); 7410 } 7411 7412 int 7413 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 7414 { 7415 struct ieee80211com *ic; 7416 struct lkpi_hw *lhw; 7417 int band, i; 7418 7419 lhw = HW_TO_LHW(hw); 7420 ic = lhw->ic; 7421 7422 /* We do it this late as wiphy->dev should be set for the name. */ 7423 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 7424 if (lhw->workq == NULL) 7425 return (-EAGAIN); 7426 7427 /* XXX-BZ figure this out how they count his... */ 7428 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 7429 IEEE80211_ADDR_COPY(ic->ic_macaddr, 7430 hw->wiphy->perm_addr); 7431 } else if (hw->wiphy->n_addresses > 0) { 7432 /* We take the first one. */ 7433 IEEE80211_ADDR_COPY(ic->ic_macaddr, 7434 hw->wiphy->addresses[0].addr); 7435 } else { 7436 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 7437 } 7438 7439 #ifdef __not_yet__ 7440 /* See comment in lkpi_80211_txq_tx_one(). */ 7441 ic->ic_headroom = hw->extra_tx_headroom; 7442 #endif 7443 7444 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 7445 ic->ic_opmode = IEEE80211_M_STA; 7446 7447 /* Set device capabilities. */ 7448 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 7449 ic->ic_caps = 7450 IEEE80211_C_STA | 7451 IEEE80211_C_MONITOR | 7452 IEEE80211_C_WPA | /* WPA/RSN */ 7453 #ifdef LKPI_80211_WME 7454 IEEE80211_C_WME | 7455 #endif 7456 #if 0 7457 IEEE80211_C_PMGT | 7458 #endif 7459 IEEE80211_C_SHSLOT | /* short slot time supported */ 7460 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 7461 ; 7462 7463 #ifdef LKPI_80211_BGSCAN 7464 if (lhw->ops->hw_scan) 7465 ic->ic_caps |= IEEE80211_C_BGSCAN; 7466 #endif 7467 7468 lkpi_enable_hw_scan(lhw); 7469 7470 /* Does the driver/firmware handle rate countrol? */ 7471 /* Currently only older iwlwifi mvm devices are in this category. */ 7472 if (bootverbose && !ieee80211_hw_check(hw, HAS_RATE_CONTROL)) 7473 ic_printf(ic, "NOTE: rate control not supported by LinuxKPI; " 7474 "expect low rates only\n"); 7475 7476 /* Does HW support Fragmentation offload? */ 7477 if (ieee80211_hw_check(hw, SUPPORTS_TX_FRAG)) 7478 ic->ic_flags_ext |= IEEE80211_FEXT_FRAG_OFFLOAD; 7479 7480 /* Does HW support full AMPDU[-TX] offload? */ 7481 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 7482 ic->ic_flags_ext |= IEEE80211_FEXT_AMPDU_OFFLOAD; 7483 #ifdef __notyet__ 7484 if (ieee80211_hw_check(hw, TX_AMSDU)) 7485 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 7486 #endif 7487 7488 /* 7489 * The wiphy variables report bitmasks of avail antennas. 7490 * (*get_antenna) get the current bitmask sets which can be 7491 * altered by (*set_antenna) for some drivers. 7492 * XXX-BZ will the count alone do us much good long-term in net80211? 7493 */ 7494 if (hw->wiphy->available_antennas_rx || 7495 hw->wiphy->available_antennas_tx) { 7496 uint32_t rxs, txs; 7497 7498 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 7499 ic->ic_rxstream = bitcount32(rxs); 7500 ic->ic_txstream = bitcount32(txs); 7501 } 7502 } 7503 7504 ic->ic_cryptocaps = 0; 7505 #ifdef LKPI_80211_HW_CRYPTO 7506 if (lkpi_hwcrypto && hw->wiphy->n_cipher_suites > 0) { 7507 uint32_t hwciphers; 7508 7509 hwciphers = 0; 7510 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) { 7511 uint32_t cs; 7512 7513 cs = lkpi_l80211_to_net80211_cyphers( 7514 ic, hw->wiphy->cipher_suites[i]); 7515 if (cs == IEEE80211_CRYPTO_TKIP) { 7516 /* 7517 * We do set this here. We will only find out 7518 * when doing a SET_KEY operation depending on 7519 * what the driver returns. 7520 * net80211::ieee80211_crypto_newkey() 7521 * checks this so we will have to do flags 7522 * surgery later. 7523 */ 7524 cs |= IEEE80211_CRYPTO_TKIPMIC; 7525 } 7526 hwciphers |= cs; 7527 } 7528 /* 7529 * (20250415) nothing anywhere in the path checks we actually 7530 * support all these in net80211. 7531 * net80211 supports _256 variants but the ioctl does not. 7532 */ 7533 IMPROVE("as net80211 grows more support, enable them"); 7534 hwciphers &= (IEEE80211_CRYPTO_WEP | 7535 IEEE80211_CRYPTO_TKIP | IEEE80211_CRYPTO_TKIPMIC | 7536 IEEE80211_CRYPTO_AES_CCM | IEEE80211_CRYPTO_AES_GCM_128); 7537 /* 7538 * We only support CCMP here, so further filter. 7539 * Also permit TKIP if turned on. 7540 */ 7541 hwciphers &= (IEEE80211_CRYPTO_AES_CCM | 7542 IEEE80211_CRYPTO_AES_GCM_128 | 7543 (lkpi_hwcrypto_tkip ? (IEEE80211_CRYPTO_TKIP | 7544 IEEE80211_CRYPTO_TKIPMIC) : 0)); 7545 ieee80211_set_hardware_ciphers(ic, hwciphers); 7546 } 7547 #endif 7548 7549 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 7550 ic->ic_channels); 7551 7552 ieee80211_ifattach(ic); 7553 7554 ic->ic_update_mcast = lkpi_ic_update_mcast; 7555 ic->ic_update_promisc = lkpi_ic_update_promisc; 7556 ic->ic_update_chw = lkpi_ic_update_chw; 7557 ic->ic_parent = lkpi_ic_parent; 7558 ic->ic_scan_start = lkpi_ic_scan_start; 7559 ic->ic_scan_end = lkpi_ic_scan_end; 7560 ic->ic_set_channel = lkpi_ic_set_channel; 7561 ic->ic_transmit = lkpi_ic_transmit; 7562 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 7563 ic->ic_vap_create = lkpi_ic_vap_create; 7564 ic->ic_vap_delete = lkpi_ic_vap_delete; 7565 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 7566 ic->ic_wme.wme_update = lkpi_ic_wme_update; 7567 7568 lhw->ic_scan_curchan = ic->ic_scan_curchan; 7569 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 7570 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 7571 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 7572 7573 lhw->ic_node_alloc = ic->ic_node_alloc; 7574 ic->ic_node_alloc = lkpi_ic_node_alloc; 7575 lhw->ic_node_init = ic->ic_node_init; 7576 ic->ic_node_init = lkpi_ic_node_init; 7577 lhw->ic_node_cleanup = ic->ic_node_cleanup; 7578 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 7579 lhw->ic_node_free = ic->ic_node_free; 7580 ic->ic_node_free = lkpi_ic_node_free; 7581 7582 #ifdef LKPI_80211_HT 7583 /* 7584 * Only attach if the driver/firmware supports (*ampdu_action)(). 7585 * Otherwise it is in the hands of net80211. 7586 */ 7587 if (lhw->ops->ampdu_action != NULL) { 7588 lhw->ic_recv_action = ic->ic_recv_action; 7589 ic->ic_recv_action = lkpi_ic_recv_action; 7590 lhw->ic_send_action = ic->ic_send_action; 7591 ic->ic_send_action = lkpi_ic_send_action; 7592 7593 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 7594 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 7595 7596 lhw->ic_addba_request = ic->ic_addba_request; 7597 ic->ic_addba_request = lkpi_ic_addba_request; 7598 lhw->ic_addba_response = ic->ic_addba_response; 7599 ic->ic_addba_response = lkpi_ic_addba_response; 7600 lhw->ic_addba_stop = ic->ic_addba_stop; 7601 ic->ic_addba_stop = lkpi_ic_addba_stop; 7602 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 7603 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 7604 7605 lhw->ic_bar_response = ic->ic_bar_response; 7606 ic->ic_bar_response = lkpi_ic_bar_response; 7607 7608 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 7609 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 7610 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 7611 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 7612 } 7613 #endif 7614 7615 lkpi_radiotap_attach(lhw); 7616 7617 /* 7618 * Assign the first possible channel for now; seems Realtek drivers 7619 * expect one. 7620 * Also remember the amount of bands we support and the most rates 7621 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 7622 */ 7623 lhw->supbands = lhw->max_rates = 0; 7624 for (band = 0; band < NUM_NL80211_BANDS; band++) { 7625 struct ieee80211_supported_band *supband; 7626 struct linuxkpi_ieee80211_channel *channels; 7627 7628 supband = hw->wiphy->bands[band]; 7629 if (supband == NULL || supband->n_channels == 0) 7630 continue; 7631 7632 lhw->supbands++; 7633 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 7634 7635 /* If we have a channel, we need to keep counting supbands. */ 7636 if (hw->conf.chandef.chan != NULL) 7637 continue; 7638 7639 channels = supband->channels; 7640 for (i = 0; i < supband->n_channels; i++) { 7641 7642 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 7643 continue; 7644 7645 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 7646 #ifdef LKPI_80211_HT 7647 (ic->ic_flags_ht & IEEE80211_FHT_HT) ? NL80211_CHAN_HT20 : 7648 #endif 7649 NL80211_CHAN_NO_HT); 7650 lhw->dflt_chandef = hw->conf.chandef; 7651 #ifdef LINUXKPI_DEBUG_80211 7652 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 7653 ic_printf(ic, "%s:%d: initialized " 7654 "hw->conf.chandef and dflt_chandef to %p\n", 7655 __func__, __LINE__, &lhw->dflt_chandef); 7656 #endif 7657 break; 7658 } 7659 } 7660 7661 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 7662 7663 /* Make sure we do not support more than net80211 is willing to take. */ 7664 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 7665 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 7666 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 7667 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 7668 } 7669 7670 /* 7671 * The maximum supported bitrates on any band + size for 7672 * DSSS Parameter Set give our per-band IE size. 7673 * SSID is the responsibility of the driver and goes on the side. 7674 * The user specified bits coming from the vap go into the 7675 * "common ies" fields. 7676 */ 7677 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 7678 if (lhw->max_rates > IEEE80211_RATE_SIZE) 7679 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 7680 7681 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 7682 /* 7683 * net80211 does not seem to support the DSSS Parameter Set but 7684 * some of the drivers insert it so calculate the extra fixed 7685 * space in. 7686 */ 7687 lhw->scan_ie_len += 2 + 1; 7688 } 7689 7690 #if defined(LKPI_80211_HT) 7691 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 7692 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 7693 #endif 7694 #if defined(LKPI_80211_VHT) 7695 if (IEEE80211_CONF_VHT(ic)) 7696 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 7697 #endif 7698 7699 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 7700 if (hw->wiphy->max_scan_ie_len > 0) { 7701 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 7702 goto err; 7703 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 7704 } 7705 7706 if (bootverbose) { 7707 if (hw->netdev_features != 0) 7708 ic_printf(ic, "netdev_features %b\n", 7709 hw->netdev_features, NETIF_F_BITS); 7710 ieee80211_announce(ic); 7711 } 7712 7713 return (0); 7714 err: 7715 IMPROVE("TODO FIXME CLEANUP"); 7716 return (-EAGAIN); 7717 } 7718 7719 void 7720 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 7721 { 7722 struct lkpi_hw *lhw; 7723 struct ieee80211com *ic; 7724 7725 lhw = HW_TO_LHW(hw); 7726 ic = lhw->ic; 7727 ieee80211_ifdetach(ic); 7728 } 7729 7730 void 7731 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 7732 enum ieee80211_iface_iter flags, 7733 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 7734 void *arg) 7735 { 7736 struct lkpi_hw *lhw; 7737 struct lkpi_vif *lvif; 7738 struct ieee80211_vif *vif; 7739 bool active, atomic, nin_drv; 7740 7741 lhw = HW_TO_LHW(hw); 7742 7743 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 7744 IEEE80211_IFACE_ITER_RESUME_ALL| 7745 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 7746 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC| 7747 IEEE80211_IFACE_ITER__MTX)) { 7748 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 7749 __func__, flags); 7750 } 7751 7752 if ((flags & IEEE80211_IFACE_ITER__MTX) != 0) 7753 lockdep_assert_wiphy(hw->wiphy); 7754 7755 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 7756 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 7757 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 7758 7759 if (atomic) { 7760 IMPROVE("LKPI_80211_LHW_LVIF_LOCK atomic assume to be rcu?"); 7761 LKPI_80211_LHW_LVIF_LOCK(lhw); 7762 } 7763 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 7764 struct ieee80211vap *vap; 7765 7766 vif = LVIF_TO_VIF(lvif); 7767 7768 /* 7769 * If we want "active" interfaces, we need to distinguish on 7770 * whether the driver knows about them or not to be able to 7771 * handle the "resume" case correctly. Skip the ones the 7772 * driver does not know about. 7773 */ 7774 if (active && !lvif->added_to_drv && 7775 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 7776 continue; 7777 7778 /* 7779 * If we shall skip interfaces not added to the driver do so 7780 * if we haven't yet. 7781 */ 7782 if (nin_drv && !lvif->added_to_drv) 7783 continue; 7784 7785 /* 7786 * Run the iterator function if we are either not asking 7787 * asking for active only or if the VAP is "running". 7788 */ 7789 /* XXX-BZ probably should have state in the lvif as well. */ 7790 vap = LVIF_TO_VAP(lvif); 7791 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 7792 iterfunc(arg, vif->addr, vif); 7793 } 7794 if (atomic) 7795 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 7796 } 7797 7798 static void 7799 lkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 7800 ieee80211_keyix keyix, struct lkpi_sta *lsta, 7801 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 7802 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 7803 void *arg) 7804 { 7805 #ifdef LINUXKPI_DEBUG_80211 7806 if (linuxkpi_debug_80211 & D80211_TRACE_HW_CRYPTO) 7807 net80211_vap_printf(LVIF_TO_VAP(VIF_TO_LVIF(vif)), 7808 "%s:%d: lsta %6D added_to_drv %d kc[keyix %u] %p\n", 7809 __func__, __LINE__, LSTA_TO_STA(lsta)->addr, ":", 7810 lsta->added_to_drv, keyix, lsta->kc[keyix]); 7811 #endif 7812 7813 if (!lsta->added_to_drv) 7814 return; 7815 7816 if (lsta->kc[keyix] == NULL) 7817 return; 7818 7819 iterfunc(hw, vif, LSTA_TO_STA(lsta), lsta->kc[keyix], arg); 7820 } 7821 7822 void 7823 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 7824 struct ieee80211_vif *vif, 7825 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 7826 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 7827 void *arg, bool rcu) 7828 { 7829 struct lkpi_sta *lsta; 7830 struct lkpi_vif *lvif; 7831 7832 lvif = VIF_TO_LVIF(vif); 7833 7834 if (rcu) { 7835 rcu_read_lock_held(); /* XXX-BZ is this correct? */ 7836 7837 if (vif == NULL) { 7838 TODO(); 7839 } else { 7840 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 7841 for (ieee80211_keyix keyix = 0; keyix < nitems(lsta->kc); 7842 keyix++) 7843 lkpi_ieee80211_iterate_keys(hw, vif, 7844 keyix, lsta, iterfunc, arg); 7845 } 7846 } 7847 } else { 7848 TODO("Used by suspend/resume; order of keys as installed to " 7849 "firmware is important; we'll need to rewrite some code for that"); 7850 lockdep_assert_wiphy(hw->wiphy); 7851 7852 if (vif == NULL) { 7853 TODO(); 7854 } else { 7855 list_for_each_entry(lsta, &lvif->lsta_list, lsta_list) { 7856 for (ieee80211_keyix keyix = 0; keyix < nitems(lsta->kc); 7857 keyix++) 7858 lkpi_ieee80211_iterate_keys(hw, vif, 7859 keyix, lsta, iterfunc, arg); 7860 } 7861 } 7862 } 7863 } 7864 7865 void 7866 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 7867 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 7868 void *), 7869 void *arg) 7870 { 7871 struct lkpi_hw *lhw; 7872 struct lkpi_chanctx *lchanctx; 7873 7874 KASSERT(hw != NULL && iterfunc != NULL, 7875 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 7876 7877 lhw = HW_TO_LHW(hw); 7878 7879 rcu_read_lock(); 7880 list_for_each_entry_rcu(lchanctx, &lhw->lchanctx_list, entry) { 7881 if (!lchanctx->added_to_drv) 7882 continue; 7883 iterfunc(hw, &lchanctx->chanctx_conf, arg); 7884 } 7885 rcu_read_unlock(); 7886 } 7887 7888 void 7889 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 7890 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 7891 { 7892 struct lkpi_hw *lhw; 7893 struct lkpi_vif *lvif; 7894 struct lkpi_sta *lsta; 7895 struct ieee80211_sta *sta; 7896 7897 KASSERT(hw != NULL && iterfunc != NULL, 7898 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 7899 7900 lhw = HW_TO_LHW(hw); 7901 7902 LKPI_80211_LHW_LVIF_LOCK(lhw); 7903 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 7904 7905 rcu_read_lock(); 7906 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 7907 if (!lsta->added_to_drv) 7908 continue; 7909 sta = LSTA_TO_STA(lsta); 7910 iterfunc(arg, sta); 7911 } 7912 rcu_read_unlock(); 7913 } 7914 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 7915 } 7916 7917 struct linuxkpi_ieee80211_regdomain * 7918 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 7919 { 7920 struct linuxkpi_ieee80211_regdomain *regd; 7921 7922 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 7923 GFP_KERNEL); 7924 return (regd); 7925 } 7926 7927 int 7928 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 7929 struct linuxkpi_ieee80211_regdomain *regd) 7930 { 7931 struct lkpi_hw *lhw; 7932 struct ieee80211com *ic; 7933 struct ieee80211_regdomain *rd; 7934 7935 lhw = wiphy_priv(wiphy); 7936 ic = lhw->ic; 7937 7938 rd = &ic->ic_regdomain; 7939 if (rd->isocc[0] == '\0') { 7940 rd->isocc[0] = regd->alpha2[0]; 7941 rd->isocc[1] = regd->alpha2[1]; 7942 } 7943 7944 TODO(); 7945 /* XXX-BZ finish the rest. */ 7946 7947 return (0); 7948 } 7949 7950 void 7951 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 7952 struct cfg80211_scan_info *info) 7953 { 7954 struct lkpi_hw *lhw; 7955 struct ieee80211com *ic; 7956 struct ieee80211_scan_state *ss; 7957 7958 lhw = wiphy_priv(hw->wiphy); 7959 ic = lhw->ic; 7960 ss = ic->ic_scan; 7961 7962 TRACE_SCAN(ic, "scan_flags %b info { %ju, %6D, aborted %d }", 7963 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 7964 (uintmax_t)info->scan_start_tsf, info->tsf_bssid, ":", 7965 info->aborted); 7966 7967 ieee80211_scan_done(ss->ss_vap); 7968 7969 LKPI_80211_LHW_SCAN_LOCK(lhw); 7970 free(lhw->hw_req, M_LKPI80211); 7971 lhw->hw_req = NULL; 7972 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 7973 /* The wakeup(lhw) will be called from lkpi_ic_scan_end(). */ 7974 /* wakeup(lhw); */ 7975 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 7976 7977 return; 7978 } 7979 7980 static void 7981 lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 7982 { 7983 struct ieee80211_node *ni; 7984 #ifdef LKPI_80211_USE_MTAG 7985 struct m_tag *mtag; 7986 #endif 7987 int ok; 7988 7989 ni = NULL; 7990 #ifdef LKPI_80211_USE_MTAG 7991 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 7992 if (mtag != NULL) { 7993 struct lkpi_80211_tag_rxni *rxni; 7994 7995 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 7996 ni = rxni->ni; 7997 } 7998 #else 7999 if (m->m_pkthdr.PH_loc.ptr != NULL) { 8000 ni = m->m_pkthdr.PH_loc.ptr; 8001 m->m_pkthdr.PH_loc.ptr = NULL; 8002 } 8003 #endif 8004 8005 if (ni != NULL) { 8006 ok = ieee80211_input_mimo(ni, m); 8007 ieee80211_free_node(ni); /* Release the reference. */ 8008 if (ok < 0) 8009 m_freem(m); 8010 } else { 8011 ok = ieee80211_input_mimo_all(lhw->ic, m); 8012 /* mbuf got consumed. */ 8013 } 8014 8015 #ifdef LINUXKPI_DEBUG_80211 8016 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8017 printf("TRACE-RX: %s: handled frame type %#0x\n", __func__, ok); 8018 #endif 8019 } 8020 8021 static void 8022 lkpi_80211_lhw_rxq_task(void *ctx, int pending) 8023 { 8024 struct lkpi_hw *lhw; 8025 struct mbufq mq; 8026 struct mbuf *m; 8027 8028 lhw = ctx; 8029 8030 #ifdef LINUXKPI_DEBUG_80211 8031 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8032 printf("TRACE-RX: %s: lhw %p pending %d mbuf_qlen %d\n", 8033 __func__, lhw, pending, mbufq_len(&lhw->rxq)); 8034 #endif 8035 8036 mbufq_init(&mq, IFQ_MAXLEN); 8037 8038 LKPI_80211_LHW_RXQ_LOCK(lhw); 8039 mbufq_concat(&mq, &lhw->rxq); 8040 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8041 8042 m = mbufq_dequeue(&mq); 8043 while (m != NULL) { 8044 lkpi_80211_lhw_rxq_rx_one(lhw, m); 8045 m = mbufq_dequeue(&mq); 8046 } 8047 } 8048 8049 static void 8050 lkpi_convert_rx_status(struct ieee80211_hw *hw, struct lkpi_sta *lsta, 8051 struct ieee80211_rx_status *rx_status, 8052 struct ieee80211_rx_stats *rx_stats, 8053 uint8_t *rssip) 8054 { 8055 struct ieee80211_supported_band *supband; 8056 struct rate_info rxrate; 8057 int i; 8058 uint8_t rssi; 8059 8060 memset(&rxrate, 0, sizeof(rxrate)); 8061 memset(rx_stats, 0, sizeof(*rx_stats)); 8062 rx_stats->r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 8063 /* XXX-BZ correct hardcoded noise floor, survey data? */ 8064 rx_stats->c_nf = -96; 8065 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 8066 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 8067 rssi = rx_status->signal; 8068 else 8069 rssi = rx_stats->c_nf; 8070 /* 8071 * net80211 signal strength data are in .5 dBm units relative to 8072 * the current noise floor (see comment in ieee80211_node.h). 8073 */ 8074 rssi -= rx_stats->c_nf; 8075 if (rssip != NULL) 8076 *rssip = rssi; 8077 rx_stats->c_rssi = rssi * 2; 8078 rx_stats->r_flags |= IEEE80211_R_BAND; 8079 rx_stats->c_band = 8080 lkpi_nl80211_band_to_net80211_band(rx_status->band); 8081 rx_stats->r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 8082 rx_stats->c_freq = rx_status->freq; 8083 rx_stats->c_ieee = ieee80211_mhz2ieee(rx_stats->c_freq, rx_stats->c_band); 8084 8085 rx_stats->c_rx_tsf = rx_status->mactime; 8086 8087 /* XXX RX_FLAG_MACTIME_IS_RTAP_TS64 ? */ 8088 if ((rx_status->flag & RX_FLAG_MACTIME) == 8089 (RX_FLAG_MACTIME_START|RX_FLAG_MACTIME_END)) { 8090 rx_stats->r_flags |= IEEE80211_R_TSF64; 8091 /* XXX RX_FLAG_MACTIME_PLCP_START ? */ 8092 if ((rx_status->flag & RX_FLAG_MACTIME) == RX_FLAG_MACTIME_START) 8093 rx_stats->r_flags |= IEEE80211_R_TSF_START; 8094 if ((rx_status->flag & RX_FLAG_MACTIME) == RX_FLAG_MACTIME_END) 8095 rx_stats->r_flags |= IEEE80211_R_TSF_END; 8096 /* XXX-BZ if TSF_END will net80211 do the unwind of time? */ 8097 } 8098 8099 if (rx_status->chains != 0) { 8100 int cc; 8101 int8_t crssi; 8102 8103 rx_stats->c_chain = rx_status->chains; 8104 rx_stats->r_flags |= IEEE80211_R_C_CHAIN; 8105 8106 cc = 0; 8107 for (i = 0; i < nitems(rx_status->chain_signal); i++) { 8108 if (!(rx_status->chains & BIT(i))) 8109 continue; 8110 crssi = rx_status->chain_signal[i]; 8111 crssi -= rx_stats->c_nf; 8112 rx_stats->c_rssi_ctl[i] = crssi * 2; 8113 rx_stats->c_rssi_ext[i] = crssi * 2; /* XXX _ext ??? ATH thing? */ 8114 /* We currently only have the global noise floor value. */ 8115 rx_stats->c_nf_ctl[i] = rx_stats->c_nf; 8116 rx_stats->c_nf_ext[i] = rx_stats->c_nf; 8117 cc++; 8118 } 8119 if (cc > 0) 8120 rx_stats->r_flags |= (IEEE80211_R_C_NF | IEEE80211_R_C_RSSI); 8121 } 8122 8123 /* rx_status->antenna */ 8124 8125 /* XXX-NET80211 We are not going to populate c_phytype! */ 8126 8127 switch (rx_status->encoding) { 8128 case RX_ENC_LEGACY: 8129 { 8130 uint32_t legacy = 0; 8131 8132 supband = hw->wiphy->bands[rx_status->band]; 8133 if (supband != NULL) 8134 legacy = supband->bitrates[rx_status->rate_idx].bitrate; 8135 rx_stats->c_rate = legacy; 8136 rxrate.legacy = legacy; 8137 /* Is there a LinuxKPI way of reporting IEEE80211_RX_F_CCK / _OFDM? */ 8138 break; 8139 } 8140 case RX_ENC_HT: 8141 rx_stats->c_pktflags |= IEEE80211_RX_F_HT; 8142 rx_stats->c_rate = rx_status->rate_idx; /* mcs */ 8143 rxrate.flags |= RATE_INFO_FLAGS_MCS; 8144 rxrate.mcs = rx_status->rate_idx; 8145 if ((rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) != 0) { 8146 rx_stats->c_pktflags |= IEEE80211_RX_F_SHORTGI; 8147 rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 8148 } 8149 break; 8150 case RX_ENC_VHT: 8151 rx_stats->c_pktflags |= IEEE80211_RX_F_VHT; 8152 rx_stats->c_rate = rx_status->rate_idx; /* mcs */ 8153 rx_stats->c_vhtnss = rx_status->nss; 8154 rxrate.flags |= RATE_INFO_FLAGS_VHT_MCS; 8155 rxrate.mcs = rx_status->rate_idx; 8156 rxrate.nss = rx_status->nss; 8157 if ((rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) != 0) { 8158 rx_stats->c_pktflags |= IEEE80211_RX_F_SHORTGI; 8159 rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 8160 } 8161 break; 8162 case RX_ENC_HE: 8163 rxrate.flags |= RATE_INFO_FLAGS_HE_MCS; 8164 rxrate.mcs = rx_status->rate_idx; 8165 rxrate.nss = rx_status->nss; 8166 /* XXX TODO */ 8167 TODO("net80211 has not matching encoding for %u", rx_status->encoding); 8168 break; 8169 case RX_ENC_EHT: 8170 rxrate.flags |= RATE_INFO_FLAGS_EHT_MCS; 8171 rxrate.mcs = rx_status->rate_idx; 8172 rxrate.nss = rx_status->nss; 8173 /* XXX TODO */ 8174 TODO("net80211 has not matching encoding for %u", rx_status->encoding); 8175 break; 8176 } 8177 8178 rxrate.bw = rx_status->bw; 8179 switch (rx_status->bw) { 8180 case RATE_INFO_BW_20: 8181 rx_stats->c_width = IEEE80211_RX_FW_20MHZ; 8182 break; 8183 case RATE_INFO_BW_40: 8184 rx_stats->c_width = IEEE80211_RX_FW_40MHZ; 8185 break; 8186 case RATE_INFO_BW_80: 8187 rx_stats->c_width = IEEE80211_RX_FW_80MHZ; 8188 break; 8189 case RATE_INFO_BW_160: 8190 rx_stats->c_width = IEEE80211_RX_FW_160MHZ; 8191 break; 8192 case RATE_INFO_BW_320: 8193 case RATE_INFO_BW_HE_RU: 8194 case RATE_INFO_BW_EHT_RU: 8195 case RATE_INFO_BW_5: 8196 case RATE_INFO_BW_10: 8197 TODO("net80211 has not matching bandwidth for %u", rx_status->bw); 8198 break; 8199 } 8200 8201 if ((rx_status->enc_flags & RX_ENC_FLAG_LDPC) != 0) 8202 rx_stats->c_pktflags |= IEEE80211_RX_F_LDPC; 8203 if ((rx_status->enc_flags & RX_ENC_FLAG_STBC_MASK) != 0) 8204 rx_stats->c_pktflags |= IEEE80211_RX_F_STBC; 8205 8206 /* 8207 * We only need these for LKPI_80211_HW_CRYPTO in theory but in 8208 * case the hardware does something we do not expect always leave 8209 * these enabled. Leaving this commant as documentation for the || 1. 8210 */ 8211 #if defined(LKPI_80211_HW_CRYPTO) || 1 8212 if (rx_status->flag & RX_FLAG_DECRYPTED) { 8213 rx_stats->c_pktflags |= IEEE80211_RX_F_DECRYPTED; 8214 /* Only valid if decrypted is set. */ 8215 if (rx_status->flag & RX_FLAG_PN_VALIDATED) 8216 rx_stats->c_pktflags |= IEEE80211_RX_F_PN_VALIDATED; 8217 } 8218 if (rx_status->flag & RX_FLAG_IV_STRIPPED) 8219 rx_stats->c_pktflags |= IEEE80211_RX_F_IV_STRIP; 8220 if (rx_status->flag & RX_FLAG_ICV_STRIPPED) 8221 rx_stats->c_pktflags |= IEEE80211_RX_F_ICV_STRIP; 8222 if (rx_status->flag & RX_FLAG_MIC_STRIPPED) 8223 rx_stats->c_pktflags |= IEEE80211_RX_F_MIC_STRIP; 8224 if (rx_status->flag & RX_FLAG_MMIC_STRIPPED) 8225 rx_stats->c_pktflags |= IEEE80211_RX_F_MMIC_STRIP; 8226 if (rx_status->flag & RX_FLAG_MMIC_ERROR) 8227 rx_stats->c_pktflags |= IEEE80211_RX_F_FAIL_MMIC; 8228 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 8229 rx_stats->c_pktflags |= IEEE80211_RX_F_FAIL_FCSCRC; 8230 #endif 8231 8232 /* Fill in some sinfo bits to fill gaps not reported byt the driver. */ 8233 if (lsta != NULL) { 8234 memcpy(&lsta->sinfo.rxrate, &rxrate, sizeof(rxrate)); 8235 lsta->sinfo.filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE); 8236 8237 if (rx_status->chains != 0) { 8238 lsta->sinfo.chains = rx_status->chains; 8239 memcpy(lsta->sinfo.chain_signal, rx_status->chain_signal, 8240 sizeof(lsta->sinfo.chain_signal)); 8241 lsta->sinfo.filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL); 8242 } 8243 } 8244 } 8245 8246 #ifdef LINUXKPI_DEBUG_80211 8247 static void 8248 lkpi_rx_log_beacon(struct mbuf *m, struct lkpi_hw *lhw, 8249 struct ieee80211_rx_status *rx_status) 8250 { 8251 struct ieee80211_mgmt *f; 8252 uint8_t *e; 8253 char ssid[IEEE80211_NWID_LEN * 4 + 1]; 8254 8255 memset(ssid, '\0', sizeof(ssid)); 8256 8257 f = mtod(m, struct ieee80211_mgmt *); 8258 e = f->u.beacon.variable; 8259 /* 8260 * Usually SSID is right after the fixed part and for debugging we will 8261 * be fine should we miss it if it is not. 8262 */ 8263 while ((e - (uint8_t *)f) < m->m_len) { 8264 if (*e == IEEE80211_ELEMID_SSID) 8265 break; 8266 e += (2 + *(e + 1)); 8267 } 8268 if (*e == IEEE80211_ELEMID_SSID) { 8269 int i, len; 8270 char *p; 8271 8272 p = ssid; 8273 len = m->m_len - ((e + 2) - (uint8_t *)f); 8274 if (len > *(e + 1)) 8275 len = *(e + 1); 8276 e += 2; 8277 for (i = 0; i < len; i++) { 8278 /* Printable character? */ 8279 if (*e >= 0x20 && *e < 0x7f) { 8280 *p++ = *e++; 8281 } else { 8282 snprintf(p, 5, "%#04x", *e++); 8283 p += 4; 8284 } 8285 } 8286 *p = '\0'; 8287 } 8288 8289 /* We print skb, skb->data, m as we are seeing 'ghost beacons'. */ 8290 TRACE_SCAN_BEACON(lhw->ic, "Beacon: scan_flags %b, band %s freq %u chan %-4d " 8291 "len %d { %#06x %#06x %6D %6D %6D %#06x %ju %u %#06x SSID '%s' }", 8292 lhw->scan_flags, LKPI_LHW_SCAN_BITS, 8293 lkpi_nl80211_band_name(rx_status->band), rx_status->freq, 8294 linuxkpi_ieee80211_frequency_to_channel(rx_status->freq, 0), 8295 m->m_pkthdr.len, f->frame_control, f->duration_id, 8296 f->da, ":", f->sa, ":", f->bssid, ":", f->seq_ctrl, 8297 (uintmax_t)le64_to_cpu(f->u.beacon.timestamp), 8298 le16_to_cpu(f->u.beacon.beacon_int), 8299 le16_to_cpu(f->u.beacon.capab_info), ssid); 8300 } 8301 #endif 8302 8303 /* For %list see comment towards the end of the function. */ 8304 void 8305 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 8306 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 8307 struct list_head *list __unused) 8308 { 8309 struct lkpi_hw *lhw; 8310 struct ieee80211com *ic; 8311 struct mbuf *m; 8312 struct skb_shared_info *shinfo; 8313 struct ieee80211_rx_status *rx_status; 8314 struct ieee80211_rx_stats rx_stats; 8315 struct ieee80211_node *ni; 8316 struct ieee80211vap *vap; 8317 struct ieee80211_hdr *hdr; 8318 struct lkpi_sta *lsta; 8319 int i, offset, ok, error; 8320 uint8_t rssi; 8321 bool is_beacon; 8322 8323 lhw = HW_TO_LHW(hw); 8324 ic = lhw->ic; 8325 8326 if (skb->len < 2) { 8327 /* Need 80211 stats here. */ 8328 counter_u64_add(ic->ic_ierrors, 1); 8329 IMPROVE(); 8330 goto err; 8331 } 8332 8333 /* 8334 * For now do the data copy; we can later improve things. Might even 8335 * have an mbuf backing the skb data then? 8336 */ 8337 m = m_get3(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 8338 if (m == NULL) { 8339 counter_u64_add(ic->ic_ierrors, 1); 8340 goto err; 8341 } 8342 m_copyback(m, 0, skb->tail - skb->data, skb->data); 8343 8344 shinfo = skb_shinfo(skb); 8345 offset = m->m_len; 8346 for (i = 0; i < shinfo->nr_frags; i++) { 8347 m_copyback(m, offset, shinfo->frags[i].size, 8348 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 8349 shinfo->frags[i].offset); 8350 offset += shinfo->frags[i].size; 8351 } 8352 8353 rx_status = IEEE80211_SKB_RXCB(skb); 8354 8355 hdr = (void *)skb->data; 8356 is_beacon = ieee80211_is_beacon(hdr->frame_control); 8357 8358 #ifdef LINUXKPI_DEBUG_80211 8359 /* 8360 * We use the mbuf here as otherwise the variable part might 8361 * be in skb frags. 8362 */ 8363 if (is_beacon && ((linuxkpi_debug_80211 & D80211_SCAN_BEACON) != 0)) 8364 lkpi_rx_log_beacon(m, lhw, rx_status); 8365 8366 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0 && 8367 (linuxkpi_debug_80211 & D80211_SCAN_BEACON) == 0) 8368 goto no_trace_beacons; 8369 8370 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8371 printf("TRACE-RX: %s: skb %p l/d/t-len (%u/%u/%u) " 8372 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 8373 __func__, skb, skb->len, skb->data_len, 8374 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 8375 shinfo, shinfo->nr_frags, 8376 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 8377 8378 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 8379 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 8380 8381 /* Implement a dump_rxcb() !!! */ 8382 if ((linuxkpi_debug_80211 & D80211_TRACE_RX) != 0 || 8383 (linuxkpi_debug_80211 & D80211_SCAN_BEACON) != 0) 8384 printf("TRACE-RX: %s: RXCB: %ju %ju %u, %b, %u, %#0x, %#0x, " 8385 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 8386 __func__, 8387 (uintmax_t)rx_status->boottime_ns, 8388 (uintmax_t)rx_status->mactime, 8389 rx_status->device_timestamp, 8390 rx_status->flag, IEEE80211_RX_STATUS_FLAGS_BITS, 8391 rx_status->freq, 8392 rx_status->bw, 8393 rx_status->encoding, 8394 rx_status->ampdu_reference, 8395 rx_status->band, 8396 rx_status->chains, 8397 rx_status->chain_signal[0], 8398 rx_status->chain_signal[1], 8399 rx_status->chain_signal[2], 8400 rx_status->chain_signal[3], 8401 rx_status->signal, 8402 rx_status->enc_flags, 8403 rx_status->he_dcm, 8404 rx_status->he_gi, 8405 rx_status->he_ru, 8406 rx_status->zero_length_psdu_type, 8407 rx_status->nss, 8408 rx_status->rate_idx); 8409 no_trace_beacons: 8410 #endif 8411 8412 lsta = NULL; 8413 if (sta != NULL) { 8414 lsta = STA_TO_LSTA(sta); 8415 ni = ieee80211_ref_node(lsta->ni); 8416 } else { 8417 struct ieee80211_frame_min *wh; 8418 8419 wh = mtod(m, struct ieee80211_frame_min *); 8420 ni = ieee80211_find_rxnode(ic, wh); 8421 if (ni != NULL) 8422 lsta = ni->ni_drv_data; 8423 } 8424 8425 rssi = 0; 8426 lkpi_convert_rx_status(hw, lsta, rx_status, &rx_stats, &rssi); 8427 8428 ok = ieee80211_add_rx_params(m, &rx_stats); 8429 if (ok == 0) { 8430 m_freem(m); 8431 counter_u64_add(ic->ic_ierrors, 1); 8432 goto err; 8433 } 8434 8435 if (ni != NULL) 8436 vap = ni->ni_vap; 8437 else 8438 /* 8439 * XXX-BZ can we improve this by looking at the frame hdr 8440 * or other meta-data passed up? 8441 */ 8442 vap = TAILQ_FIRST(&ic->ic_vaps); 8443 8444 #ifdef LINUXKPI_DEBUG_80211 8445 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8446 printf("TRACE-RX: %s: sta %p lsta %p state %d ni %p vap %p%s\n", 8447 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 8448 ni, vap, is_beacon ? " beacon" : ""); 8449 #endif 8450 8451 if (ni != NULL && vap != NULL && is_beacon && 8452 rx_status->device_timestamp > 0 && 8453 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 8454 struct lkpi_vif *lvif; 8455 struct ieee80211_vif *vif; 8456 struct ieee80211_frame *wh; 8457 8458 lvif = VAP_TO_LVIF(vap); 8459 vif = LVIF_TO_VIF(lvif); 8460 8461 wh = mtod(m, struct ieee80211_frame *); 8462 if (!IEEE80211_ADDR_EQ(wh->i_addr2, vif->cfg.ap_addr)) 8463 goto skip_device_ts; 8464 8465 IMPROVE("TIMING_BEACON_ONLY?"); 8466 /* mac80211 specific (not net80211) so keep it here. */ 8467 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 8468 /* 8469 * net80211 should take care of the other information (sync_tsf, 8470 * sync_dtim_count) as otherwise we need to parse the beacon. 8471 */ 8472 skip_device_ts: 8473 ; 8474 } 8475 8476 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 8477 ieee80211_radiotap_active_vap(vap)) { 8478 struct lkpi_radiotap_rx_hdr *rtap; 8479 8480 rtap = &lhw->rtap_rx; 8481 rtap->wr_tsft = rx_status->device_timestamp; 8482 rtap->wr_flags = 0; 8483 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 8484 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 8485 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 8486 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 8487 #if 0 /* .. or it does not given we strip it below. */ 8488 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 8489 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 8490 #endif 8491 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 8492 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 8493 rtap->wr_rate = 0; 8494 IMPROVE(); 8495 /* XXX TODO status->encoding / rate_index / bw */ 8496 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 8497 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 8498 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 8499 rtap->wr_dbm_antsignal = rssi; 8500 rtap->wr_dbm_antnoise = rx_stats.c_nf; 8501 } 8502 8503 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 8504 m_adj(m, -IEEE80211_CRC_LEN); 8505 8506 #if 0 8507 if (list != NULL) { 8508 /* 8509 * Normally this would be queued up and delivered by 8510 * netif_receive_skb_list(), napi_gro_receive(), or the like. 8511 * See mt76::mac80211.c as only current possible consumer. 8512 */ 8513 IMPROVE("we simply pass the packet to net80211 to deal with."); 8514 } 8515 #endif 8516 8517 /* Attach meta-information to the mbuf for the deferred RX path. */ 8518 if (ni != NULL) { 8519 #ifdef LKPI_80211_USE_MTAG 8520 struct m_tag *mtag; 8521 struct lkpi_80211_tag_rxni *rxni; 8522 8523 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 8524 sizeof(*rxni), IEEE80211_M_NOWAIT); 8525 if (mtag == NULL) { 8526 m_freem(m); 8527 counter_u64_add(ic->ic_ierrors, 1); 8528 goto err; 8529 } 8530 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 8531 rxni->ni = ni; /* We hold a reference. */ 8532 m_tag_prepend(m, mtag); 8533 #else 8534 m->m_pkthdr.PH_loc.ptr = ni; /* We hold a reference. */ 8535 #endif 8536 } 8537 8538 LKPI_80211_LHW_RXQ_LOCK(lhw); 8539 if (lhw->rxq_stopped) { 8540 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8541 m_freem(m); 8542 counter_u64_add(ic->ic_ierrors, 1); 8543 goto err; 8544 } 8545 8546 error = mbufq_enqueue(&lhw->rxq, m); 8547 if (error != 0) { 8548 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8549 m_freem(m); 8550 counter_u64_add(ic->ic_ierrors, 1); 8551 #ifdef LINUXKPI_DEBUG_80211 8552 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 8553 ic_printf(ni->ni_ic, "%s: mbufq_enqueue failed: %d\n", 8554 __func__, error); 8555 #endif 8556 goto err; 8557 } 8558 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 8559 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 8560 8561 IMPROVE(); 8562 8563 err: 8564 /* The skb is ours so we can free it :-) */ 8565 kfree_skb(skb); 8566 } 8567 8568 uint8_t 8569 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 8570 { 8571 const struct ieee80211_frame *wh; 8572 uint8_t tid; 8573 8574 /* Linux seems to assume this is a QOS-Data-Frame */ 8575 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 8576 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 8577 hdr->frame_control)); 8578 8579 wh = (const struct ieee80211_frame *)hdr; 8580 tid = ieee80211_gettid(wh); 8581 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 8582 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 8583 8584 return (tid); 8585 } 8586 8587 /* -------------------------------------------------------------------------- */ 8588 8589 static void 8590 lkpi_wiphy_work(struct work_struct *work) 8591 { 8592 struct lkpi_wiphy *lwiphy; 8593 struct wiphy *wiphy; 8594 struct wiphy_work *wk; 8595 8596 lwiphy = container_of(work, struct lkpi_wiphy, wwk); 8597 wiphy = LWIPHY_TO_WIPHY(lwiphy); 8598 8599 wiphy_lock(wiphy); 8600 8601 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8602 wk = list_first_entry_or_null(&lwiphy->wwk_list, struct wiphy_work, entry); 8603 /* If there is nothing we do nothing. */ 8604 if (wk == NULL) { 8605 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8606 wiphy_unlock(wiphy); 8607 return; 8608 } 8609 list_del_init(&wk->entry); 8610 8611 /* More work to do? */ 8612 if (!list_empty(&lwiphy->wwk_list)) 8613 schedule_work(work); 8614 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8615 8616 /* Finally call the (*wiphy_work_fn)() function. */ 8617 wk->fn(wiphy, wk); 8618 8619 wiphy_unlock(wiphy); 8620 } 8621 8622 void 8623 linuxkpi_wiphy_work_queue(struct wiphy *wiphy, struct wiphy_work *wwk) 8624 { 8625 struct lkpi_wiphy *lwiphy; 8626 8627 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8628 8629 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8630 /* Do not double-queue. */ 8631 if (list_empty(&wwk->entry)) 8632 list_add_tail(&wwk->entry, &lwiphy->wwk_list); 8633 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8634 8635 /* 8636 * See how ieee80211_queue_work() work continues in Linux or if things 8637 * migrate here over time? 8638 * Use a system queue from linux/workqueue.h for now. 8639 */ 8640 queue_work(system_wq, &lwiphy->wwk); 8641 } 8642 8643 void 8644 linuxkpi_wiphy_work_cancel(struct wiphy *wiphy, struct wiphy_work *wwk) 8645 { 8646 struct lkpi_wiphy *lwiphy; 8647 8648 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8649 8650 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8651 /* Only cancel if queued. */ 8652 if (!list_empty(&wwk->entry)) 8653 list_del_init(&wwk->entry); 8654 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8655 } 8656 8657 void 8658 linuxkpi_wiphy_work_flush(struct wiphy *wiphy, struct wiphy_work *wwk) 8659 { 8660 struct lkpi_wiphy *lwiphy; 8661 struct wiphy_work *wk; 8662 8663 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8664 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8665 /* If wwk is unset, flush everything; called when wiphy is shut down. */ 8666 if (wwk != NULL && list_empty(&wwk->entry)) { 8667 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8668 return; 8669 } 8670 8671 while (!list_empty(&lwiphy->wwk_list)) { 8672 8673 wk = list_first_entry(&lwiphy->wwk_list, struct wiphy_work, 8674 entry); 8675 list_del_init(&wk->entry); 8676 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8677 wk->fn(wiphy, wk); 8678 LKPI_80211_LWIPHY_WORK_LOCK(lwiphy); 8679 if (wk == wwk) 8680 break; 8681 } 8682 LKPI_80211_LWIPHY_WORK_UNLOCK(lwiphy); 8683 } 8684 8685 void 8686 lkpi_wiphy_delayed_work_timer(struct timer_list *tl) 8687 { 8688 struct wiphy_delayed_work *wdwk; 8689 8690 wdwk = timer_container_of(wdwk, tl, timer); 8691 wiphy_work_queue(wdwk->wiphy, &wdwk->work); 8692 } 8693 8694 void 8695 linuxkpi_wiphy_delayed_work_queue(struct wiphy *wiphy, 8696 struct wiphy_delayed_work *wdwk, unsigned long delay) 8697 { 8698 if (delay == 0) { 8699 /* Run right away. */ 8700 del_timer(&wdwk->timer); 8701 wiphy_work_queue(wiphy, &wdwk->work); 8702 } else { 8703 wdwk->wiphy = wiphy; 8704 mod_timer(&wdwk->timer, jiffies + delay); 8705 } 8706 } 8707 8708 void 8709 linuxkpi_wiphy_delayed_work_cancel(struct wiphy *wiphy, 8710 struct wiphy_delayed_work *wdwk) 8711 { 8712 del_timer_sync(&wdwk->timer); 8713 wiphy_work_cancel(wiphy, &wdwk->work); 8714 } 8715 8716 void 8717 linuxkpi_wiphy_delayed_work_flush(struct wiphy *wiphy, 8718 struct wiphy_delayed_work *wdwk) 8719 { 8720 lockdep_assert_held(&wiphy->mtx); 8721 8722 del_timer_sync(&wdwk->timer); 8723 wiphy_work_flush(wiphy, &wdwk->work); 8724 } 8725 8726 /* -------------------------------------------------------------------------- */ 8727 8728 struct wiphy * 8729 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 8730 { 8731 struct lkpi_wiphy *lwiphy; 8732 struct wiphy *wiphy; 8733 8734 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 8735 if (lwiphy == NULL) 8736 return (NULL); 8737 lwiphy->ops = ops; 8738 8739 LKPI_80211_LWIPHY_WORK_LOCK_INIT(lwiphy); 8740 INIT_LIST_HEAD(&lwiphy->wwk_list); 8741 INIT_WORK(&lwiphy->wwk, lkpi_wiphy_work); 8742 8743 wiphy = LWIPHY_TO_WIPHY(lwiphy); 8744 8745 INIT_LIST_HEAD(&wiphy->wdev_list); 8746 mutex_init(&wiphy->mtx); 8747 TODO(); 8748 8749 return (wiphy); 8750 } 8751 8752 void 8753 linuxkpi_wiphy_free(struct wiphy *wiphy) 8754 { 8755 struct lkpi_wiphy *lwiphy; 8756 8757 if (wiphy == NULL) 8758 return; 8759 8760 linuxkpi_wiphy_work_flush(wiphy, NULL); 8761 mutex_destroy(&wiphy->mtx); 8762 8763 lwiphy = WIPHY_TO_LWIPHY(wiphy); 8764 LKPI_80211_LWIPHY_WORK_LOCK_DESTROY(lwiphy); 8765 8766 kfree(lwiphy); 8767 } 8768 8769 static void 8770 lkpi_wiphy_band_annotate(struct wiphy *wiphy) 8771 { 8772 int band; 8773 8774 for (band = 0; band < NUM_NL80211_BANDS; band++) { 8775 struct ieee80211_supported_band *supband; 8776 int i; 8777 8778 supband = wiphy->bands[band]; 8779 if (supband == NULL) 8780 continue; 8781 8782 switch (band) { 8783 case NL80211_BAND_2GHZ: 8784 case NL80211_BAND_5GHZ: 8785 break; 8786 default: 8787 #ifdef LINUXKPI_DEBUG_80211 8788 IMPROVE("band %d(%s) not yet supported", 8789 band, lkpi_nl80211_band_name(band)); 8790 /* For bands added here, also check lkpi_lsta_alloc(). */ 8791 #endif 8792 continue; 8793 } 8794 8795 /* Band bitrates are times 10; e.g., 55 is 5.5Mbit/s. */ 8796 for (i = 0; i < supband->n_bitrates; i++) { 8797 switch (band) { 8798 case NL80211_BAND_2GHZ: 8799 switch (supband->bitrates[i].bitrate) { 8800 case 110: 8801 case 55: 8802 case 20: 8803 case 10: 8804 supband->bitrates[i].flags |= 8805 IEEE80211_RATE_MANDATORY_B; 8806 /* FALLTHROUGH */ 8807 /* 11g only */ 8808 case 240: 8809 case 120: 8810 case 60: 8811 supband->bitrates[i].flags |= 8812 IEEE80211_RATE_MANDATORY_G; 8813 break; 8814 } 8815 break; 8816 case NL80211_BAND_5GHZ: 8817 switch (supband->bitrates[i].bitrate) { 8818 case 240: 8819 case 120: 8820 case 60: 8821 supband->bitrates[i].flags |= 8822 IEEE80211_RATE_MANDATORY_A; 8823 break; 8824 } 8825 break; 8826 } 8827 TRACE_RATES("band %d bitrate[%d/%u] %u flags %#010x", 8828 band, i, supband->n_bitrates, 8829 supband->bitrates[i].bitrate, 8830 supband->bitrates[i].flags); 8831 } 8832 } 8833 } 8834 8835 int 8836 linuxkpi_80211_wiphy_register(struct wiphy *wiphy) 8837 { 8838 TODO("Lots of checks and initialization"); 8839 8840 lkpi_wiphy_band_annotate(wiphy); 8841 8842 return (0); 8843 } 8844 8845 static uint32_t 8846 lkpi_cfg80211_calculate_bitrate_ht(struct rate_info *rate) 8847 { 8848 TODO("cfg80211_calculate_bitrate_ht"); 8849 return (rate->legacy); 8850 } 8851 8852 static uint32_t 8853 lkpi_cfg80211_calculate_bitrate_vht(struct rate_info *rate) 8854 { 8855 TODO("cfg80211_calculate_bitrate_vht"); 8856 return (rate->legacy); 8857 } 8858 8859 uint32_t 8860 linuxkpi_cfg80211_calculate_bitrate(struct rate_info *rate) 8861 { 8862 8863 /* Beware: order! */ 8864 if (rate->flags & RATE_INFO_FLAGS_MCS) 8865 return (lkpi_cfg80211_calculate_bitrate_ht(rate)); 8866 8867 if (rate->flags & RATE_INFO_FLAGS_VHT_MCS) 8868 return (lkpi_cfg80211_calculate_bitrate_vht(rate)); 8869 8870 IMPROVE("HE/EHT/..."); 8871 8872 return (rate->legacy); 8873 } 8874 8875 uint32_t 8876 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 8877 enum nl80211_band band) 8878 { 8879 8880 switch (band) { 8881 case NL80211_BAND_2GHZ: 8882 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 8883 break; 8884 case NL80211_BAND_5GHZ: 8885 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 8886 break; 8887 default: 8888 /* XXX abort, retry, error, panic? */ 8889 break; 8890 } 8891 8892 return (0); 8893 } 8894 8895 uint32_t 8896 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 8897 { 8898 8899 return (ieee80211_mhz2ieee(freq, 0)); 8900 } 8901 8902 #if 0 8903 static struct lkpi_sta * 8904 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 8905 { 8906 struct lkpi_sta *lsta, *temp; 8907 8908 rcu_read_lock(); 8909 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 8910 if (lsta->ni == ni) { 8911 rcu_read_unlock(); 8912 return (lsta); 8913 } 8914 } 8915 rcu_read_unlock(); 8916 8917 return (NULL); 8918 } 8919 #endif 8920 8921 struct ieee80211_sta * 8922 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 8923 { 8924 struct lkpi_vif *lvif; 8925 struct lkpi_sta *lsta; 8926 struct ieee80211_sta *sta; 8927 8928 lvif = VIF_TO_LVIF(vif); 8929 8930 rcu_read_lock(); 8931 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 8932 sta = LSTA_TO_STA(lsta); 8933 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 8934 rcu_read_unlock(); 8935 return (sta); 8936 } 8937 } 8938 rcu_read_unlock(); 8939 return (NULL); 8940 } 8941 8942 struct ieee80211_sta * 8943 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 8944 const uint8_t *addr, const uint8_t *ourvifaddr) 8945 { 8946 struct lkpi_hw *lhw; 8947 struct lkpi_vif *lvif; 8948 struct lkpi_sta *lsta; 8949 struct ieee80211_vif *vif; 8950 struct ieee80211_sta *sta; 8951 8952 lhw = wiphy_priv(hw->wiphy); 8953 sta = NULL; 8954 8955 LKPI_80211_LHW_LVIF_LOCK(lhw); 8956 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 8957 8958 /* XXX-BZ check our address from the vif. */ 8959 8960 vif = LVIF_TO_VIF(lvif); 8961 if (ourvifaddr != NULL && 8962 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 8963 continue; 8964 sta = linuxkpi_ieee80211_find_sta(vif, addr); 8965 if (sta != NULL) 8966 break; 8967 } 8968 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 8969 8970 if (sta != NULL) { 8971 lsta = STA_TO_LSTA(sta); 8972 if (!lsta->added_to_drv) 8973 return (NULL); 8974 } 8975 8976 return (sta); 8977 } 8978 8979 struct sk_buff * 8980 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 8981 struct ieee80211_txq *txq) 8982 { 8983 struct lkpi_txq *ltxq; 8984 struct lkpi_vif *lvif; 8985 struct sk_buff *skb; 8986 8987 IMPROVE("wiphy_lock? or assert?"); 8988 skb = NULL; 8989 ltxq = TXQ_TO_LTXQ(txq); 8990 ltxq->flags |= LKPI_TXQ_SEEN_DEQUEUE; 8991 8992 if ((ltxq->flags & (LKPI_TXQ_STOPPED|LKPI_TXQ_STOPPED_BA)) != 0) 8993 goto stopped; 8994 8995 lvif = VIF_TO_LVIF(ltxq->txq.vif); 8996 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 8997 ltxq->flags |= LKPI_TXQ_STOPPED; 8998 goto stopped; 8999 } 9000 9001 IMPROVE("hw(TX_FRAG_LIST)"); 9002 9003 LKPI_80211_LTXQ_LOCK(ltxq); 9004 skb = skb_dequeue(<xq->skbq); 9005 if (skb != NULL) 9006 ltxq->frms_dequeued++; 9007 LKPI_80211_LTXQ_UNLOCK(ltxq); 9008 9009 stopped: 9010 return (skb); 9011 } 9012 9013 void 9014 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 9015 unsigned long *frame_cnt, unsigned long *byte_cnt) 9016 { 9017 struct lkpi_txq *ltxq; 9018 struct sk_buff *skb; 9019 unsigned long fc, bc; 9020 9021 ltxq = TXQ_TO_LTXQ(txq); 9022 9023 fc = bc = 0; 9024 LKPI_80211_LTXQ_LOCK(ltxq); 9025 skb_queue_walk(<xq->skbq, skb) { 9026 fc++; 9027 bc += skb->len; 9028 } 9029 LKPI_80211_LTXQ_UNLOCK(ltxq); 9030 if (frame_cnt) 9031 *frame_cnt = fc; 9032 if (byte_cnt) 9033 *byte_cnt = bc; 9034 9035 /* Validate that this is doing the correct thing. */ 9036 /* Should we keep track on en/dequeue? */ 9037 IMPROVE(); 9038 } 9039 9040 /* 9041 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 9042 * The latter tries to derive the success status from the info flags 9043 * passed back from the driver. rawx_mit() saves the ni on the m and the 9044 * m on the skb for us to be able to give feedback to net80211. 9045 */ 9046 static void 9047 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 9048 int status) 9049 { 9050 struct ieee80211_node *ni; 9051 struct mbuf *m; 9052 9053 if (skb == NULL) 9054 return; 9055 9056 m = skb->m; 9057 skb->m = NULL; 9058 9059 if (m != NULL) { 9060 ni = m->m_pkthdr.PH_loc.ptr; 9061 /* Status: 0 is ok, != 0 is error. */ 9062 ieee80211_tx_complete(ni, m, status); 9063 /* ni & mbuf were consumed. */ 9064 } 9065 } 9066 9067 void 9068 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 9069 int status) 9070 { 9071 9072 _lkpi_ieee80211_free_txskb(hw, skb, status); 9073 kfree_skb(skb); 9074 } 9075 9076 void 9077 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 9078 struct ieee80211_tx_status *txstat) 9079 { 9080 struct sk_buff *skb; 9081 struct ieee80211_tx_info *info, _info = { }; 9082 struct ieee80211_ratectl_tx_status txs; 9083 struct ieee80211_node *ni; 9084 int status; 9085 9086 skb = txstat->skb; 9087 if (skb != NULL && skb->m != NULL) { 9088 struct mbuf *m; 9089 9090 m = skb->m; 9091 ni = m->m_pkthdr.PH_loc.ptr; 9092 memset(&txs, 0, sizeof(txs)); 9093 } else { 9094 ni = NULL; 9095 } 9096 9097 /* 9098 * If we have no info information on tx, set info to an all-zero struct 9099 * to make the code (and debug output) simpler. 9100 */ 9101 info = txstat->info; 9102 if (info == NULL) 9103 info = &_info; 9104 if (info->flags & IEEE80211_TX_STAT_ACK) { 9105 status = 0; /* No error. */ 9106 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 9107 } else { 9108 status = 1; 9109 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 9110 } 9111 9112 if (ni != NULL) { 9113 txs.pktlen = skb->len; 9114 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 9115 if (info->status.rates[0].count > 1) { 9116 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 9117 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 9118 } 9119 #if 0 /* Unused in net80211 currently. */ 9120 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 9121 txs.final_rate = info->status.rates[0].idx; 9122 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 9123 #endif 9124 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 9125 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 9126 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 9127 } 9128 9129 IMPROVE("only update rate if needed but that requires us to get a proper rate from mo_sta_statistics"); 9130 ieee80211_ratectl_tx_complete(ni, &txs); 9131 ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 9132 9133 #ifdef LINUXKPI_DEBUG_80211 9134 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 9135 printf("TX-RATE: %s: long_retries %d\n", __func__, 9136 txs.long_retries); 9137 } 9138 #endif 9139 } 9140 9141 #ifdef LINUXKPI_DEBUG_80211 9142 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 9143 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %b " 9144 "band %u hw_queue %u tx_time_est %d : " 9145 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 9146 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 9147 "tx_time %u flags %b " 9148 "status_driver_data [ %p %p ]\n", 9149 __func__, hw, skb, status, info->flags, IEEE80211_TX_INFO_FLAGS, 9150 info->band, info->hw_queue, info->tx_time_est, 9151 info->status.rates[0].idx, info->status.rates[0].count, 9152 info->status.rates[0].flags, 9153 info->status.rates[1].idx, info->status.rates[1].count, 9154 info->status.rates[1].flags, 9155 info->status.rates[2].idx, info->status.rates[2].count, 9156 info->status.rates[2].flags, 9157 info->status.rates[3].idx, info->status.rates[3].count, 9158 info->status.rates[3].flags, 9159 info->status.ack_signal, info->status.ampdu_ack_len, 9160 info->status.ampdu_len, info->status.antenna, 9161 info->status.tx_time, info->status.flags, IEEE80211_TX_STATUS_FLAGS, 9162 info->status.status_driver_data[0], 9163 info->status.status_driver_data[1]); 9164 #endif 9165 9166 if (txstat->free_list) { 9167 _lkpi_ieee80211_free_txskb(hw, skb, status); 9168 if (skb != NULL) 9169 list_add_tail(&skb->list, txstat->free_list); 9170 } else { 9171 linuxkpi_ieee80211_free_txskb(hw, skb, status); 9172 } 9173 } 9174 9175 void 9176 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 9177 { 9178 struct ieee80211_tx_status status; 9179 9180 memset(&status, 0, sizeof(status)); 9181 status.info = IEEE80211_SKB_CB(skb); 9182 status.skb = skb; 9183 /* sta, n_rates, rates, free_list? */ 9184 9185 ieee80211_tx_status_ext(hw, &status); 9186 } 9187 9188 /* 9189 * This is an internal bandaid for the moment for the way we glue 9190 * skbs and mbufs together for TX. Once we have skbs backed by 9191 * mbufs this should go away. 9192 * This is a public function but kept on the private KPI (lkpi_) 9193 * and is not exposed by a header file. 9194 */ 9195 static void 9196 lkpi_ieee80211_free_skb_mbuf(void *p) 9197 { 9198 struct ieee80211_node *ni; 9199 struct mbuf *m; 9200 9201 if (p == NULL) 9202 return; 9203 9204 m = (struct mbuf *)p; 9205 M_ASSERTPKTHDR(m); 9206 9207 ni = m->m_pkthdr.PH_loc.ptr; 9208 m->m_pkthdr.PH_loc.ptr = NULL; 9209 if (ni != NULL) 9210 ieee80211_free_node(ni); 9211 m_freem(m); 9212 } 9213 9214 void 9215 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 9216 struct delayed_work *w, int delay) 9217 { 9218 struct lkpi_hw *lhw; 9219 9220 /* Need to make sure hw is in a stable (non-suspended) state. */ 9221 IMPROVE(); 9222 9223 lhw = HW_TO_LHW(hw); 9224 queue_delayed_work(lhw->workq, w, delay); 9225 } 9226 9227 void 9228 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 9229 struct work_struct *w) 9230 { 9231 struct lkpi_hw *lhw; 9232 9233 /* Need to make sure hw is in a stable (non-suspended) state. */ 9234 IMPROVE(); 9235 9236 lhw = HW_TO_LHW(hw); 9237 queue_work(lhw->workq, w); 9238 } 9239 9240 struct sk_buff * 9241 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, const uint8_t *addr, 9242 const uint8_t *ssid, size_t ssid_len, size_t tailroom) 9243 { 9244 struct sk_buff *skb; 9245 struct ieee80211_frame *wh; 9246 uint8_t *p; 9247 size_t len; 9248 9249 len = sizeof(*wh); 9250 len += 2 + ssid_len; 9251 9252 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 9253 if (skb == NULL) 9254 return (NULL); 9255 9256 skb_reserve(skb, hw->extra_tx_headroom); 9257 9258 wh = skb_put_zero(skb, sizeof(*wh)); 9259 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 9260 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 9261 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 9262 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 9263 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 9264 9265 p = skb_put(skb, 2 + ssid_len); 9266 *p++ = IEEE80211_ELEMID_SSID; 9267 *p++ = ssid_len; 9268 if (ssid_len > 0) 9269 memcpy(p, ssid, ssid_len); 9270 9271 return (skb); 9272 } 9273 9274 struct sk_buff * 9275 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 9276 struct ieee80211_vif *vif) 9277 { 9278 struct lkpi_vif *lvif; 9279 struct ieee80211vap *vap; 9280 struct sk_buff *skb; 9281 struct ieee80211_frame_pspoll *psp; 9282 uint16_t v; 9283 9284 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 9285 if (skb == NULL) 9286 return (NULL); 9287 9288 skb_reserve(skb, hw->extra_tx_headroom); 9289 9290 lvif = VIF_TO_LVIF(vif); 9291 vap = LVIF_TO_VAP(lvif); 9292 9293 psp = skb_put_zero(skb, sizeof(*psp)); 9294 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 9295 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 9296 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 9297 memcpy(&psp->i_aid, &v, sizeof(v)); 9298 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 9299 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 9300 9301 return (skb); 9302 } 9303 9304 struct sk_buff * 9305 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 9306 struct ieee80211_vif *vif, int linkid, bool qos) 9307 { 9308 struct sk_buff *skb; 9309 struct ieee80211_frame *nullf; 9310 9311 IMPROVE("linkid"); 9312 9313 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 9314 if (skb == NULL) 9315 return (NULL); 9316 9317 skb_reserve(skb, hw->extra_tx_headroom); 9318 9319 nullf = skb_put_zero(skb, sizeof(*nullf)); 9320 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 9321 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 9322 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 9323 9324 /* XXX-BZ if link is given, this is different. */ 9325 IEEE80211_ADDR_COPY(nullf->i_addr1, vif->cfg.ap_addr); 9326 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 9327 IEEE80211_ADDR_COPY(nullf->i_addr3, vif->cfg.ap_addr); 9328 9329 return (skb); 9330 } 9331 9332 struct wireless_dev * 9333 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 9334 { 9335 struct lkpi_vif *lvif; 9336 9337 lvif = VIF_TO_LVIF(vif); 9338 return (&lvif->wdev); 9339 } 9340 9341 void 9342 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 9343 { 9344 struct lkpi_vif *lvif; 9345 struct ieee80211vap *vap; 9346 enum ieee80211_state nstate; 9347 int arg; 9348 9349 lvif = VIF_TO_LVIF(vif); 9350 vap = LVIF_TO_VAP(lvif); 9351 9352 /* 9353 * Go to init; otherwise we need to elaborately check state and 9354 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 9355 * Let the statemachine handle all neccessary changes. 9356 */ 9357 nstate = IEEE80211_S_INIT; 9358 arg = 0; /* Not a valid reason. */ 9359 9360 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s (synched %d, assoc %d " 9361 "beacons %d dtim_period %d)\n", __func__, vif, vap, 9362 ieee80211_state_name[vap->iv_state], 9363 lvif->lvif_bss_synched, vif->cfg.assoc, lvif->beacons, 9364 vif->bss_conf.dtim_period); 9365 ieee80211_new_state(vap, nstate, arg); 9366 } 9367 9368 void 9369 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 9370 { 9371 struct lkpi_vif *lvif; 9372 struct ieee80211vap *vap; 9373 9374 lvif = VIF_TO_LVIF(vif); 9375 vap = LVIF_TO_VAP(lvif); 9376 9377 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s (synched %d, assoc %d " 9378 "beacons %d dtim_period %d)\n", __func__, vif, vap, 9379 ieee80211_state_name[vap->iv_state], 9380 lvif->lvif_bss_synched, vif->cfg.assoc, lvif->beacons, 9381 vif->bss_conf.dtim_period); 9382 ieee80211_beacon_miss(vap->iv_ic); 9383 } 9384 9385 /* -------------------------------------------------------------------------- */ 9386 9387 void 9388 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 9389 { 9390 struct lkpi_hw *lhw; 9391 struct lkpi_vif *lvif; 9392 struct ieee80211_vif *vif; 9393 int ac_count, ac; 9394 9395 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 9396 __func__, qnum, hw->queues, hw)); 9397 9398 lhw = wiphy_priv(hw->wiphy); 9399 9400 /* See lkpi_ic_vap_create(). */ 9401 if (hw->queues >= IEEE80211_NUM_ACS) 9402 ac_count = IEEE80211_NUM_ACS; 9403 else 9404 ac_count = 1; 9405 9406 LKPI_80211_LHW_LVIF_LOCK(lhw); 9407 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 9408 9409 vif = LVIF_TO_VIF(lvif); 9410 for (ac = 0; ac < ac_count; ac++) { 9411 IMPROVE_TXQ("LOCKING"); 9412 if (qnum == vif->hw_queue[ac]) { 9413 #ifdef LINUXKPI_DEBUG_80211 9414 /* 9415 * For now log this to better understand 9416 * how this is supposed to work. 9417 */ 9418 if (lvif->hw_queue_stopped[ac] && 9419 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 9420 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 9421 "lvif %p vif %p ac %d qnum %d already " 9422 "stopped\n", __func__, __LINE__, 9423 lhw, hw, lvif, vif, ac, qnum); 9424 #endif 9425 lvif->hw_queue_stopped[ac] = true; 9426 } 9427 } 9428 } 9429 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 9430 } 9431 9432 void 9433 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 9434 { 9435 int i; 9436 9437 IMPROVE_TXQ("Locking; do we need further info?"); 9438 for (i = 0; i < hw->queues; i++) 9439 linuxkpi_ieee80211_stop_queue(hw, i); 9440 } 9441 9442 9443 static void 9444 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 9445 { 9446 struct lkpi_hw *lhw; 9447 struct lkpi_vif *lvif; 9448 struct lkpi_sta *lsta; 9449 int ac_count, ac, tid; 9450 9451 /* See lkpi_ic_vap_create(). */ 9452 if (hw->queues >= IEEE80211_NUM_ACS) 9453 ac_count = IEEE80211_NUM_ACS; 9454 else 9455 ac_count = 1; 9456 9457 lhw = wiphy_priv(hw->wiphy); 9458 9459 IMPROVE_TXQ("Locking"); 9460 LKPI_80211_LHW_LVIF_LOCK(lhw); 9461 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 9462 struct ieee80211_vif *vif; 9463 9464 vif = LVIF_TO_VIF(lvif); 9465 for (ac = 0; ac < ac_count; ac++) { 9466 9467 if (hwq == vif->hw_queue[ac]) { 9468 9469 /* XXX-BZ what about software scan? */ 9470 9471 #ifdef LINUXKPI_DEBUG_80211 9472 /* 9473 * For now log this to better understand 9474 * how this is supposed to work. 9475 */ 9476 if (!lvif->hw_queue_stopped[ac] && 9477 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 9478 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 9479 "lvif %p vif %p ac %d hw_q not stopped\n", 9480 __func__, __LINE__, 9481 lhw, hw, lvif, vif, ac); 9482 #endif 9483 lvif->hw_queue_stopped[ac] = false; 9484 9485 rcu_read_lock(); 9486 list_for_each_entry_rcu(lsta, &lvif->lsta_list, lsta_list) { 9487 struct ieee80211_sta *sta; 9488 9489 sta = LSTA_TO_STA(lsta); 9490 for (tid = 0; tid < nitems(sta->txq); tid++) { 9491 struct lkpi_txq *ltxq; 9492 9493 if (sta->txq[tid] == NULL) 9494 continue; 9495 9496 if (sta->txq[tid]->ac != ac) 9497 continue; 9498 9499 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 9500 if ((ltxq->flags & LKPI_TXQ_STOPPED) == 0) 9501 continue; 9502 9503 ltxq->flags &= ~LKPI_TXQ_STOPPED; 9504 9505 if (!skb_queue_empty(<xq->skbq)) 9506 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid], false); 9507 } 9508 } 9509 rcu_read_unlock(); 9510 } 9511 } 9512 } 9513 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 9514 } 9515 9516 static void 9517 lkpi_ieee80211_wake_queues_locked(struct ieee80211_hw *hw) 9518 { 9519 int i; 9520 9521 IMPROVE_TXQ("Is this all/enough here?"); 9522 for (i = 0; i < hw->queues; i++) 9523 lkpi_ieee80211_wake_queues(hw, i); 9524 } 9525 9526 void 9527 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 9528 { 9529 struct lkpi_hw *lhw; 9530 unsigned long flags; 9531 9532 lhw = HW_TO_LHW(hw); 9533 9534 spin_lock_irqsave(&lhw->txq_lock, flags); 9535 lkpi_ieee80211_wake_queues_locked(hw); 9536 spin_unlock_irqrestore(&lhw->txq_lock, flags); 9537 } 9538 9539 void 9540 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 9541 { 9542 struct lkpi_hw *lhw; 9543 unsigned long flags; 9544 9545 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 9546 __func__, qnum, hw->queues, hw)); 9547 9548 lhw = HW_TO_LHW(hw); 9549 9550 spin_lock_irqsave(&lhw->txq_lock, flags); 9551 lkpi_ieee80211_wake_queues(hw, qnum); 9552 spin_unlock_irqrestore(&lhw->txq_lock, flags); 9553 } 9554 9555 void 9556 linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 9557 struct ieee80211_txq *txq) 9558 { 9559 struct lkpi_hw *lhw; 9560 9561 lhw = HW_TO_LHW(hw); 9562 9563 LKPI_80211_LHW_TXQ_LOCK(lhw); 9564 ieee80211_txq_schedule_start(hw, txq->ac); 9565 do { 9566 struct lkpi_txq *ltxq; 9567 struct ieee80211_txq *ntxq; 9568 struct ieee80211_tx_control control; 9569 struct sk_buff *skb; 9570 9571 ntxq = ieee80211_next_txq(hw, txq->ac); 9572 if (ntxq == NULL) 9573 break; 9574 ltxq = TXQ_TO_LTXQ(ntxq); 9575 9576 memset(&control, 0, sizeof(control)); 9577 control.sta = ntxq->sta; 9578 do { 9579 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 9580 if (skb == NULL) 9581 break; 9582 ltxq->frms_tx++; 9583 lkpi_80211_mo_tx(hw, &control, skb); 9584 } while(1); 9585 9586 ieee80211_return_txq(hw, ntxq, false); 9587 } while (1); 9588 ieee80211_txq_schedule_end(hw, txq->ac); 9589 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 9590 } 9591 9592 /* -------------------------------------------------------------------------- */ 9593 9594 /* This is just hardware queues. */ 9595 /* 9596 * Being called from the driver thus use _bh() locking. 9597 */ 9598 void 9599 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 9600 { 9601 struct lkpi_hw *lhw; 9602 9603 lhw = HW_TO_LHW(hw); 9604 9605 if (ac >= IEEE80211_NUM_ACS) { 9606 ic_printf(lhw->ic, "%s: ac %u out of bounds.\n", __func__, ac); 9607 return; 9608 } 9609 9610 spin_lock_bh(&lhw->txq_scheduled_lock[ac]); 9611 IMPROVE("check AIRTIME_FAIRNESS"); 9612 if (++lhw->txq_generation[ac] == 0) 9613 lhw->txq_generation[ac]++; 9614 spin_unlock_bh(&lhw->txq_scheduled_lock[ac]); 9615 } 9616 9617 struct ieee80211_txq * 9618 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 9619 { 9620 struct lkpi_hw *lhw; 9621 struct ieee80211_txq *txq; 9622 struct lkpi_txq *ltxq; 9623 9624 lhw = HW_TO_LHW(hw); 9625 txq = NULL; 9626 9627 if (ac >= IEEE80211_NUM_ACS) { 9628 ic_printf(lhw->ic, "%s: ac %u out of bounds.\n", __func__, ac); 9629 return (NULL); 9630 } 9631 9632 spin_lock_bh(&lhw->txq_scheduled_lock[ac]); 9633 9634 /* Check that we are scheduled. */ 9635 if (lhw->txq_generation[ac] == 0) 9636 goto out; 9637 9638 ltxq = TAILQ_FIRST(&lhw->txq_scheduled[ac]); 9639 if (ltxq == NULL) 9640 goto out; 9641 if (ltxq->txq_generation == lhw->txq_generation[ac]) 9642 goto out; 9643 if ((ltxq->flags & (LKPI_TXQ_STOPPED|LKPI_TXQ_STOPPED_BA)) != 0) 9644 goto out; 9645 9646 IMPROVE("check AIRTIME_FAIRNESS"); 9647 9648 TAILQ_REMOVE(&lhw->txq_scheduled[ac], ltxq, txq_entry); 9649 ltxq->txq_generation = lhw->txq_generation[ac]; 9650 txq = <xq->txq; 9651 TAILQ_ELEM_INIT(ltxq, txq_entry); 9652 9653 out: 9654 spin_unlock_bh(&lhw->txq_scheduled_lock[ac]); 9655 9656 return (txq); 9657 } 9658 9659 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 9660 struct ieee80211_txq *txq, bool withoutpkts) 9661 { 9662 struct lkpi_hw *lhw; 9663 struct lkpi_txq *ltxq; 9664 bool ltxq_empty; 9665 9666 ltxq = TXQ_TO_LTXQ(txq); 9667 9668 /* Only schedule if work to do or asked to anyway. */ 9669 LKPI_80211_LTXQ_LOCK(ltxq); 9670 ltxq_empty = skb_queue_empty(<xq->skbq); 9671 LKPI_80211_LTXQ_UNLOCK(ltxq); 9672 if (!withoutpkts && ltxq_empty) 9673 goto out; 9674 9675 lhw = HW_TO_LHW(hw); 9676 spin_lock_bh(&lhw->txq_scheduled_lock[txq->ac]); 9677 /* 9678 * Make sure we do not double-schedule. We do this by checking tqe_prev, 9679 * the previous entry in our tailq. tqe_prev is always valid if this entry 9680 * is queued, tqe_next may be NULL if this is the only element in the list. 9681 */ 9682 if (ltxq->txq_entry.tqe_prev != NULL) 9683 goto unlock; 9684 9685 TAILQ_INSERT_TAIL(&lhw->txq_scheduled[txq->ac], ltxq, txq_entry); 9686 unlock: 9687 spin_unlock_bh(&lhw->txq_scheduled_lock[txq->ac]); 9688 9689 out: 9690 return; 9691 } 9692 9693 /* -------------------------------------------------------------------------- */ 9694 9695 struct lkpi_cfg80211_bss { 9696 u_int refcnt; 9697 struct cfg80211_bss bss; 9698 }; 9699 9700 struct lkpi_cfg80211_get_bss_iter_lookup { 9701 struct wiphy *wiphy; 9702 struct linuxkpi_ieee80211_channel *chan; 9703 const uint8_t *bssid; 9704 const uint8_t *ssid; 9705 size_t ssid_len; 9706 enum ieee80211_bss_type bss_type; 9707 enum ieee80211_privacy privacy; 9708 9709 /* 9710 * Something to store a copy of the result as the net80211 scan cache 9711 * is not refoucnted so a scan entry might go away any time. 9712 */ 9713 bool match; 9714 struct cfg80211_bss *bss; 9715 }; 9716 9717 static void 9718 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 9719 { 9720 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 9721 size_t ielen; 9722 9723 lookup = arg; 9724 9725 /* Do not try to find another match. */ 9726 if (lookup->match) 9727 return; 9728 9729 /* Nothing to store result. */ 9730 if (lookup->bss == NULL) 9731 return; 9732 9733 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 9734 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 9735 /* We have no idea what to compare to as the drivers only request ANY */ 9736 return; 9737 } 9738 9739 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 9740 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 9741 /* We have no idea what to compare to as the drivers only request ANY */ 9742 return; 9743 } 9744 9745 if (lookup->chan != NULL) { 9746 struct linuxkpi_ieee80211_channel *chan; 9747 9748 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 9749 se->se_chan->ic_freq); 9750 if (chan == NULL || chan != lookup->chan) 9751 return; 9752 } 9753 9754 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 9755 return; 9756 9757 if (lookup->ssid) { 9758 if (lookup->ssid_len != se->se_ssid[1] || 9759 se->se_ssid[1] == 0) 9760 return; 9761 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 9762 return; 9763 } 9764 9765 ielen = se->se_ies.len; 9766 9767 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 9768 M_LKPI80211, M_NOWAIT | M_ZERO); 9769 if (lookup->bss->ies == NULL) 9770 return; 9771 9772 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 9773 lookup->bss->ies->len = ielen; 9774 if (ielen) 9775 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 9776 9777 lookup->match = true; 9778 } 9779 9780 struct cfg80211_bss * 9781 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 9782 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 9783 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 9784 { 9785 struct lkpi_cfg80211_bss *lbss; 9786 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 9787 struct lkpi_hw *lhw; 9788 struct ieee80211vap *vap; 9789 9790 lhw = wiphy_priv(wiphy); 9791 9792 /* Let's hope we can alloc. */ 9793 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 9794 if (lbss == NULL) { 9795 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 9796 return (NULL); 9797 } 9798 9799 lookup.wiphy = wiphy; 9800 lookup.chan = chan; 9801 lookup.bssid = bssid; 9802 lookup.ssid = ssid; 9803 lookup.ssid_len = ssid_len; 9804 lookup.bss_type = bss_type; 9805 lookup.privacy = privacy; 9806 lookup.match = false; 9807 lookup.bss = &lbss->bss; 9808 9809 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 9810 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 9811 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 9812 if (!lookup.match) { 9813 free(lbss, M_LKPI80211); 9814 return (NULL); 9815 } 9816 9817 refcount_init(&lbss->refcnt, 1); 9818 return (&lbss->bss); 9819 } 9820 9821 void 9822 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 9823 { 9824 struct lkpi_cfg80211_bss *lbss; 9825 9826 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 9827 9828 /* Free everything again on refcount ... */ 9829 if (refcount_release(&lbss->refcnt)) { 9830 free(lbss->bss.ies, M_LKPI80211); 9831 free(lbss, M_LKPI80211); 9832 } 9833 } 9834 9835 void 9836 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 9837 { 9838 struct lkpi_hw *lhw; 9839 struct ieee80211com *ic; 9840 struct ieee80211vap *vap; 9841 9842 lhw = wiphy_priv(wiphy); 9843 ic = lhw->ic; 9844 9845 /* 9846 * If we haven't called ieee80211_ifattach() yet 9847 * or there is no VAP, there are no scans to flush. 9848 */ 9849 if (ic == NULL || 9850 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 9851 return; 9852 9853 /* Should only happen on the current one? Not seen it late enough. */ 9854 IEEE80211_LOCK(ic); 9855 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 9856 ieee80211_scan_flush(vap); 9857 IEEE80211_UNLOCK(ic); 9858 } 9859 9860 /* -------------------------------------------------------------------------- */ 9861 9862 static bool 9863 cfg80211_chan_def_are_same(struct cfg80211_chan_def *cd1, 9864 struct cfg80211_chan_def *cd2) 9865 { 9866 9867 if (cd1 == cd2) 9868 return (true); 9869 9870 if (cd1 == NULL || cd2 == NULL) 9871 return (false); 9872 9873 if (cd1->chan != cd2->chan) 9874 return (false); 9875 9876 if (cd1->width != cd2->width) 9877 return (false); 9878 9879 if (cd1->center_freq1 != cd2->center_freq1) 9880 return (false); 9881 9882 if (cd1->center_freq2 != cd2->center_freq2) 9883 return (false); 9884 9885 if (cd1->punctured != cd2->punctured) 9886 return (false); 9887 9888 return (true); 9889 } 9890 9891 /* 9892 * hw->conf get initialized/set in various places for us: 9893 * - linuxkpi_ieee80211_alloc_hw(): flags 9894 * - linuxkpi_ieee80211_ifattach(): chandef 9895 * - lkpi_ic_vap_create(): listen_interval 9896 * - lkpi_ic_set_channel(): chandef, flags 9897 */ 9898 9899 static int 9900 lkpi_80211_update_chandef(struct ieee80211_hw *hw, 9901 struct ieee80211_chanctx_conf *new) 9902 { 9903 struct lkpi_hw *lhw; 9904 struct cfg80211_chan_def *cd; 9905 uint32_t changed; 9906 int error; 9907 bool same; 9908 9909 lockdep_assert_wiphy(hw->wiphy); 9910 9911 lhw = HW_TO_LHW(hw); 9912 if (!lhw->emulate_chanctx) 9913 return (0); 9914 9915 if (new == NULL || new->def.chan == NULL) { 9916 /* 9917 * In case of remove "new" is NULL, we need to get us to some 9918 * basic channel width but we'd also need to set the channel 9919 * accordingly somewhere. 9920 * The same is true if we are scanning in which case the 9921 * scan_chandef should have a channel set. 9922 */ 9923 if (lhw->scan_chandef.chan != NULL) { 9924 #ifdef LINUXKPI_DEBUG_80211 9925 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9926 ic_printf(lhw->ic, "%s:%d: using scan_chandef %p\n", 9927 __func__, __LINE__, &lhw->scan_chandef); 9928 #endif 9929 cd = &lhw->scan_chandef; 9930 } else { 9931 #ifdef LINUXKPI_DEBUG_80211 9932 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9933 ic_printf(lhw->ic, "%s:%d: using dflt_chandef %p\n", 9934 __func__, __LINE__, &lhw->dflt_chandef); 9935 #endif 9936 cd = &lhw->dflt_chandef; 9937 } 9938 } else { 9939 #ifdef LINUXKPI_DEBUG_80211 9940 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9941 ic_printf(lhw->ic, "%s:%d: using chanctx %p chandef %p\n", 9942 __func__, __LINE__, new, &new->def); 9943 #endif 9944 cd = &new->def; 9945 } 9946 9947 changed = 0; 9948 same = cfg80211_chan_def_are_same(cd, &hw->conf.chandef); 9949 if (!same) { 9950 /* Copy; the chan pointer is fine and will stay valid. */ 9951 hw->conf.chandef = *cd; 9952 changed |= IEEE80211_CONF_CHANGE_CHANNEL; 9953 } 9954 IMPROVE("IEEE80211_CONF_CHANGE_PS, IEEE80211_CONF_CHANGE_POWER"); 9955 9956 #ifdef LINUXKPI_DEBUG_80211 9957 if ((linuxkpi_debug_80211 & D80211_CHANDEF) != 0) 9958 ic_printf(lhw->ic, "%s:%d: chanctx %p { %u } cd %p { %u } " 9959 "hw->conf.chandef %p { %u %d %u %u %u }, " 9960 "changed %#04x same %d\n", 9961 __func__, __LINE__, 9962 new, (new != NULL && new->def.chan != NULL) ? 9963 new->def.chan->center_freq : 0, 9964 cd, cd->chan->center_freq, 9965 &hw->conf.chandef, hw->conf.chandef.chan->center_freq, 9966 hw->conf.chandef.width, 9967 hw->conf.chandef.center_freq1, 9968 hw->conf.chandef.center_freq2, 9969 hw->conf.chandef.punctured, 9970 changed, same); 9971 #endif 9972 9973 if (changed == 0) 9974 return (0); 9975 9976 error = lkpi_80211_mo_config(hw, changed); 9977 return (error); 9978 } 9979 9980 int 9981 ieee80211_emulate_add_chanctx(struct ieee80211_hw *hw, 9982 struct ieee80211_chanctx_conf *chanctx_conf) 9983 { 9984 int error; 9985 9986 lockdep_assert_wiphy(hw->wiphy); 9987 9988 #ifdef LINUXKPI_DEBUG_80211 9989 if ((linuxkpi_debug_80211 & D80211_TRACE) != 0) { 9990 struct lkpi_hw *lhw; 9991 9992 lhw = HW_TO_LHW(hw); 9993 ic_printf(lhw->ic, "%s:%d: chanctx_conf %p\n", 9994 __func__, __LINE__, chanctx_conf); 9995 } 9996 #endif 9997 9998 hw->conf.radar_enabled = chanctx_conf->radar_enabled; 9999 error = lkpi_80211_update_chandef(hw, chanctx_conf); 10000 return (error); 10001 } 10002 10003 void 10004 ieee80211_emulate_remove_chanctx(struct ieee80211_hw *hw, 10005 struct ieee80211_chanctx_conf *chanctx_conf __unused) 10006 { 10007 10008 lockdep_assert_wiphy(hw->wiphy); 10009 10010 #ifdef LINUXKPI_DEBUG_80211 10011 if ((linuxkpi_debug_80211 & D80211_TRACE) != 0) { 10012 struct lkpi_hw *lhw; 10013 10014 lhw = HW_TO_LHW(hw); 10015 ic_printf(lhw->ic, "%s:%d: chanctx_conf %p\n", 10016 __func__, __LINE__, chanctx_conf); 10017 } 10018 #endif 10019 10020 hw->conf.radar_enabled = false; 10021 lkpi_80211_update_chandef(hw, NULL); 10022 } 10023 10024 void 10025 ieee80211_emulate_change_chanctx(struct ieee80211_hw *hw, 10026 struct ieee80211_chanctx_conf *chanctx_conf, uint32_t changed __unused) 10027 { 10028 10029 lockdep_assert_wiphy(hw->wiphy); 10030 10031 #ifdef LINUXKPI_DEBUG_80211 10032 if ((linuxkpi_debug_80211 & D80211_TRACE) != 0) { 10033 struct lkpi_hw *lhw; 10034 10035 lhw = HW_TO_LHW(hw); 10036 ic_printf(lhw->ic, "%s:%d: chanctx_conf %p\n", 10037 __func__, __LINE__, chanctx_conf); 10038 } 10039 #endif 10040 10041 hw->conf.radar_enabled = chanctx_conf->radar_enabled; 10042 lkpi_80211_update_chandef(hw, chanctx_conf); 10043 } 10044 10045 int 10046 ieee80211_emulate_switch_vif_chanctx(struct ieee80211_hw *hw, 10047 struct ieee80211_vif_chanctx_switch *vifs, int n_vifs, 10048 enum ieee80211_chanctx_switch_mode mode __unused) 10049 { 10050 struct ieee80211_chanctx_conf *chanctx_conf; 10051 int error; 10052 10053 lockdep_assert_wiphy(hw->wiphy); 10054 10055 /* Sanity check. */ 10056 if (n_vifs <= 0) 10057 return (-EINVAL); 10058 if (vifs == NULL || vifs[0].new_ctx == NULL) 10059 return (-EINVAL); 10060 10061 /* 10062 * What to do if n_vifs > 1? 10063 * Does that make sense for drivers not supporting chanctx? 10064 */ 10065 hw->conf.radar_enabled = vifs[0].new_ctx->radar_enabled; 10066 chanctx_conf = vifs[0].new_ctx; 10067 error = lkpi_80211_update_chandef(hw, chanctx_conf); 10068 return (error); 10069 } 10070 10071 /* -------------------------------------------------------------------------- */ 10072 /* LinuxKPI 802.11 PM. */ 10073 int 10074 lkpi_80211_suspend(struct ieee80211com *ic, pm_message_t state) 10075 { 10076 struct lkpi_hw *lhw; 10077 struct ieee80211_hw *hw; 10078 int error; 10079 10080 lhw = ic->ic_softc; 10081 hw = LHW_TO_HW(lhw); 10082 error = 0; 10083 10084 /* Check: 10085 * - device_set_wakeup_capable() / device_can_wakeup() 10086 * - hw->wiphy->wowlan to be non-NULL, if so contents. 10087 * - hw->wiphy->max_sched_scan_ssids (rtw88) 10088 */ 10089 if ((lkpi_suspend_type & 0x2) != 0) { 10090 struct cfg80211_wowlan wowlan; 10091 10092 IMPROVE("various options for WoWLAN"); 10093 memset(&wowlan, 0, sizeof(wowlan)); 10094 wiphy_lock(hw->wiphy); 10095 error = lkpi_80211_mo_suspend(hw, &wowlan); 10096 wiphy_unlock(hw->wiphy); 10097 if (error == EOPNOTSUPP) 10098 error = 0; 10099 } 10100 if ((lkpi_suspend_type & 0x1) != 0) { 10101 struct lkpi_vif *lvif; 10102 10103 ieee80211_suspend_all(ic); 10104 10105 wiphy_lock(hw->wiphy); 10106 /* 10107 * At the end of this net80211 will run a task to call 10108 * (*ic_parent)() which is entirely unhelpful as we do not 10109 * know when it will happen. So deal with it here. 10110 */ 10111 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 10112 lkpi_80211_mo_remove_interface(hw, LVIF_TO_VIF(lvif)); 10113 } 10114 10115 if ((lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) != 0) 10116 lkpi_80211_mo_stop(hw, true); 10117 wiphy_unlock(hw->wiphy); 10118 } 10119 10120 if (error < 0) 10121 error = -error; 10122 10123 if (error != 0) 10124 ic_printf(ic, "%s: SUSPEND FAILED: %d\n", __func__, error); 10125 10126 return (error); 10127 } 10128 10129 int 10130 lkpi_80211_resume(struct ieee80211com *ic) 10131 { 10132 struct lkpi_hw *lhw; 10133 struct ieee80211_hw *hw; 10134 int error; 10135 bool hw_scan_running; 10136 10137 lhw = ic->ic_softc; 10138 hw = LHW_TO_HW(lhw); 10139 error = 0; 10140 10141 /* 10142 * Ongoing HW scans during suspend are a problem on resume. 10143 * Be verbose about that. 10144 */ 10145 LKPI_80211_LHW_SCAN_LOCK(lhw); 10146 hw_scan_running = (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) != 0; 10147 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 10148 if (hw_scan_running) 10149 ic_printf(ic, "%s: WARNING: ongoing hw scan on resume!\n", __func__); 10150 10151 if ((lkpi_suspend_type & 0x1) != 0) { 10152 struct lkpi_vif *lvif; 10153 10154 wiphy_lock(hw->wiphy); 10155 error = lkpi_80211_mo_start(hw); 10156 if (error != 0 && error != EEXIST) { 10157 ic_printf(ic, "%s: mo_start failed: %d\n", 10158 __func__, error); 10159 wiphy_unlock(hw->wiphy); 10160 goto err; 10161 } 10162 10163 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 10164 error = lkpi_80211_mo_add_interface(hw, LVIF_TO_VIF(lvif)); 10165 if (error != 0) { 10166 struct ieee80211vap *vap; 10167 10168 vap = LVIF_TO_VAP(lvif); 10169 ic_printf(ic, "%s: mo_add_interface %s failed: %d\n", 10170 __func__, if_name(vap->iv_ifp), error); 10171 wiphy_unlock(hw->wiphy); 10172 goto err; 10173 } 10174 } 10175 wiphy_unlock(hw->wiphy); 10176 10177 ieee80211_resume_all(ic); 10178 } 10179 10180 if ((lkpi_suspend_type & 0x2) != 0) { 10181 wiphy_lock(hw->wiphy); 10182 error = lkpi_80211_mo_resume(hw); 10183 wiphy_unlock(hw->wiphy); 10184 if (error == EOPNOTSUPP) 10185 error = 0; 10186 } 10187 10188 err: 10189 if (error < 0) 10190 error = -error; 10191 10192 return (error); 10193 } 10194 10195 /* -------------------------------------------------------------------------- */ 10196 MODULE_VERSION(linuxkpi_wlan, 1); 10197 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 10198 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 10199