1 /*- 2 * Copyright (c) 2020-2023 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/cdefs.h> 43 #include <sys/param.h> 44 #include <sys/types.h> 45 #include <sys/kernel.h> 46 #include <sys/errno.h> 47 #include <sys/malloc.h> 48 #include <sys/module.h> 49 #include <sys/mutex.h> 50 #include <sys/socket.h> 51 #include <sys/sysctl.h> 52 #include <sys/queue.h> 53 #include <sys/taskqueue.h> 54 #include <sys/libkern.h> 55 56 #include <net/if.h> 57 #include <net/if_var.h> 58 #include <net/if_media.h> 59 #include <net/ethernet.h> 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_proto.h> 63 #include <net80211/ieee80211_ratectl.h> 64 #include <net80211/ieee80211_radiotap.h> 65 #include <net80211/ieee80211_vht.h> 66 67 #define LINUXKPI_NET80211 68 #include <net/mac80211.h> 69 70 #include <linux/workqueue.h> 71 #include "linux_80211.h" 72 73 #define LKPI_80211_WME 74 /* #define LKPI_80211_HW_CRYPTO */ 75 /* #define LKPI_80211_VHT */ 76 /* #define LKPI_80211_HT */ 77 #if defined(LKPI_80211_VHT) && !defined(LKPI_80211_HT) 78 #define LKPI_80211_HT 79 #endif 80 81 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 82 83 /* XXX-BZ really want this and others in queue.h */ 84 #define TAILQ_ELEM_INIT(elm, field) do { \ 85 (elm)->field.tqe_next = NULL; \ 86 (elm)->field.tqe_prev = NULL; \ 87 } while (0) 88 89 /* -------------------------------------------------------------------------- */ 90 91 /* Keep public for as long as header files are using it too. */ 92 int linuxkpi_debug_80211; 93 94 #ifdef LINUXKPI_DEBUG_80211 95 SYSCTL_DECL(_compat_linuxkpi); 96 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 97 "LinuxKPI 802.11 compatibility layer"); 98 99 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 100 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 101 102 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 103 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 104 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 105 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 106 #else 107 #define UNIMPLEMENTED do { } while (0) 108 #define TRACEOK() do { } while (0) 109 #endif 110 111 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 112 #ifndef PREP_TX_INFO_DURATION 113 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 114 #endif 115 116 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 117 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 118 119 /* IEEE 802.11-05/0257r1 */ 120 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 121 122 /* IEEE 802.11e Table 20i-UP-to-AC mappings. */ 123 static const uint8_t ieee80211e_up_to_ac[] = { 124 IEEE80211_AC_BE, 125 IEEE80211_AC_BK, 126 IEEE80211_AC_BK, 127 IEEE80211_AC_BE, 128 IEEE80211_AC_VI, 129 IEEE80211_AC_VI, 130 IEEE80211_AC_VO, 131 IEEE80211_AC_VO, 132 #if 0 133 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 134 #endif 135 }; 136 137 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 138 /* 139 * XXX TODO need a "glue layer" to link cfg80211 ops to 140 * mac80211 and to the driver or net80211. 141 * Can we pass some on 1:1? Need to compare the (*f)(). 142 */ 143 }; 144 145 #if 0 146 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 147 struct ieee80211_node *); 148 #endif 149 static void lkpi_80211_txq_task(void *, int); 150 static void lkpi_80211_lhw_rxq_task(void *, int); 151 static void lkpi_ieee80211_free_skb_mbuf(void *); 152 #ifdef LKPI_80211_WME 153 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 154 #endif 155 156 #if defined(LKPI_80211_HT) 157 static void 158 lkpi_sta_sync_ht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *ht_rx_nss) 159 { 160 struct ieee80211vap *vap; 161 uint8_t *ie; 162 struct ieee80211_ht_cap *htcap; 163 int i, rx_nss; 164 165 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) 166 return; 167 168 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && 169 IEEE80211_IS_CHAN_HT40(ni->ni_chan)) 170 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_40; 171 172 sta->deflink.ht_cap.ht_supported = true; 173 174 /* htcap->ampdu_params_info */ 175 vap = ni->ni_vap; 176 sta->deflink.ht_cap.ampdu_density = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 177 if (sta->deflink.ht_cap.ampdu_density > vap->iv_ampdu_density) 178 sta->deflink.ht_cap.ampdu_density = vap->iv_ampdu_density; 179 sta->deflink.ht_cap.ampdu_factor = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 180 if (sta->deflink.ht_cap.ampdu_factor > vap->iv_ampdu_rxmax) 181 sta->deflink.ht_cap.ampdu_factor = vap->iv_ampdu_rxmax; 182 183 ie = ni->ni_ies.htcap_ie; 184 KASSERT(ie != NULL, ("%s: HT but no htcap_ie on ni %p\n", __func__, ni)); 185 if (ie[0] == IEEE80211_ELEMID_VENDOR) 186 ie += 4; 187 ie += 2; 188 htcap = (struct ieee80211_ht_cap *)ie; 189 sta->deflink.ht_cap.cap = htcap->cap_info; 190 sta->deflink.ht_cap.mcs = htcap->mcs; 191 192 rx_nss = 0; 193 for (i = 0; i < nitems(htcap->mcs.rx_mask); i++) { 194 if (htcap->mcs.rx_mask[i]) 195 rx_nss++; 196 } 197 if (ht_rx_nss != NULL) 198 *ht_rx_nss = rx_nss; 199 200 IMPROVE("sta->wme, sta->deflink.agg.max*"); 201 } 202 #endif 203 204 #if defined(LKPI_80211_VHT) 205 static void 206 lkpi_sta_sync_vht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *vht_rx_nss) 207 { 208 209 if ((ni->ni_flags & IEEE80211_NODE_VHT) == 0) 210 return; 211 212 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 213 #ifdef __notyet__ 214 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 215 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; /* XXX? */ 216 } else 217 #endif 218 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 219 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; 220 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 221 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_80; 222 } 223 224 IMPROVE("VHT sync ni to sta"); 225 return; 226 } 227 #endif 228 229 static void 230 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 231 const char *_f, int _l) 232 { 233 234 #ifdef LINUXKPI_DEBUG_80211 235 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 236 return; 237 if (lsta == NULL) 238 return; 239 240 printf("%s:%d lsta %p ni %p sta %p\n", 241 _f, _l, lsta, ni, &lsta->sta); 242 if (ni != NULL) 243 ieee80211_dump_node(NULL, ni); 244 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 245 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 246 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 247 #endif 248 } 249 250 static void 251 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 252 { 253 254 255 LKPI_80211_LVIF_LOCK(lvif); 256 KASSERT(lsta->lsta_entry.tqe_prev != NULL, 257 ("%s: lsta %p lsta_entry.tqe_prev %p ni %p\n", __func__, 258 lsta, lsta->lsta_entry.tqe_prev, lsta->ni)); 259 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 260 LKPI_80211_LVIF_UNLOCK(lvif); 261 } 262 263 static struct lkpi_sta * 264 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 265 struct ieee80211_hw *hw, struct ieee80211_node *ni) 266 { 267 struct lkpi_sta *lsta; 268 struct lkpi_vif *lvif; 269 struct ieee80211_vif *vif; 270 struct ieee80211_sta *sta; 271 int band, i, tid; 272 int ht_rx_nss; 273 int vht_rx_nss; 274 275 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 276 M_NOWAIT | M_ZERO); 277 if (lsta == NULL) 278 return (NULL); 279 280 lsta->added_to_drv = false; 281 lsta->state = IEEE80211_STA_NOTEXIST; 282 /* 283 * Link the ni to the lsta here without taking a reference. 284 * For one we would have to take the reference in node_init() 285 * as ieee80211_alloc_node() will initialise the refcount after us. 286 * For the other a ni and an lsta are 1:1 mapped and always together 287 * from [ic_]node_alloc() to [ic_]node_free() so we are essentally 288 * using the ni references for the lsta as well despite it being 289 * two separate allocations. 290 */ 291 lsta->ni = ni; 292 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 293 ni->ni_drv_data = lsta; 294 295 lvif = VAP_TO_LVIF(vap); 296 vif = LVIF_TO_VIF(lvif); 297 sta = LSTA_TO_STA(lsta); 298 299 IEEE80211_ADDR_COPY(sta->addr, mac); 300 301 /* TXQ */ 302 for (tid = 0; tid < nitems(sta->txq); tid++) { 303 struct lkpi_txq *ltxq; 304 305 /* We are not limiting ourselves to hw.queues here. */ 306 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 307 M_LKPI80211, M_NOWAIT | M_ZERO); 308 if (ltxq == NULL) 309 goto cleanup; 310 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 311 if (tid == IEEE80211_NUM_TIDS) { 312 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 313 free(ltxq, M_LKPI80211); 314 continue; 315 } 316 IMPROVE("AP/if we support non-STA here too"); 317 ltxq->txq.ac = IEEE80211_AC_VO; 318 } else { 319 ltxq->txq.ac = ieee80211e_up_to_ac[tid & 7]; 320 } 321 ltxq->seen_dequeue = false; 322 ltxq->stopped = false; 323 ltxq->txq.vif = vif; 324 ltxq->txq.tid = tid; 325 ltxq->txq.sta = sta; 326 TAILQ_ELEM_INIT(ltxq, txq_entry); 327 skb_queue_head_init(<xq->skbq); 328 LKPI_80211_LTXQ_LOCK_INIT(ltxq); 329 sta->txq[tid] = <xq->txq; 330 } 331 332 /* Deflink information. */ 333 for (band = 0; band < NUM_NL80211_BANDS; band++) { 334 struct ieee80211_supported_band *supband; 335 336 supband = hw->wiphy->bands[band]; 337 if (supband == NULL) 338 continue; 339 340 for (i = 0; i < supband->n_bitrates; i++) { 341 342 IMPROVE("Further supband->bitrates[i]* checks?"); 343 /* or should we get them from the ni? */ 344 sta->deflink.supp_rates[band] |= BIT(i); 345 } 346 } 347 348 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 349 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_20; 350 sta->deflink.rx_nss = 0; 351 352 ht_rx_nss = 0; 353 #if defined(LKPI_80211_HT) 354 lkpi_sta_sync_ht_from_ni(sta, ni, &ht_rx_nss); 355 #endif 356 vht_rx_nss = 0; 357 #if defined(LKPI_80211_VHT) 358 lkpi_sta_sync_vht_from_ni(sta, ni, &vht_rx_nss); 359 #endif 360 361 sta->deflink.rx_nss = MAX(ht_rx_nss, sta->deflink.rx_nss); 362 sta->deflink.rx_nss = MAX(vht_rx_nss, sta->deflink.rx_nss); 363 IMPROVE("he, ... smps_mode, .."); 364 365 /* Link configuration. */ 366 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 367 sta->link[0] = &sta->deflink; 368 for (i = 1; i < nitems(sta->link); i++) { 369 IMPROVE("more links; only link[0] = deflink currently."); 370 } 371 372 /* Deferred TX path. */ 373 LKPI_80211_LSTA_TXQ_LOCK_INIT(lsta); 374 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 375 mbufq_init(&lsta->txq, IFQ_MAXLEN); 376 lsta->txq_ready = true; 377 378 return (lsta); 379 380 cleanup: 381 for (; tid >= 0; tid--) { 382 struct lkpi_txq *ltxq; 383 384 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 385 LKPI_80211_LTXQ_LOCK_DESTROY(ltxq); 386 free(sta->txq[tid], M_LKPI80211); 387 } 388 free(lsta, M_LKPI80211); 389 return (NULL); 390 } 391 392 static void 393 lkpi_lsta_free(struct lkpi_sta *lsta, struct ieee80211_node *ni) 394 { 395 struct mbuf *m; 396 397 if (lsta->added_to_drv) 398 panic("%s: Trying to free an lsta still known to firmware: " 399 "lsta %p ni %p added_to_drv %d\n", 400 __func__, lsta, ni, lsta->added_to_drv); 401 402 /* XXX-BZ free resources, ... */ 403 IMPROVE(); 404 405 /* Drain sta->txq[] */ 406 407 LKPI_80211_LSTA_TXQ_LOCK(lsta); 408 lsta->txq_ready = false; 409 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 410 411 /* Drain taskq, won't be restarted until added_to_drv is set again. */ 412 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 413 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 414 415 /* Flush mbufq (make sure to release ni refs!). */ 416 m = mbufq_dequeue(&lsta->txq); 417 while (m != NULL) { 418 struct ieee80211_node *nim; 419 420 nim = (struct ieee80211_node *)m->m_pkthdr.rcvif; 421 if (nim != NULL) 422 ieee80211_free_node(nim); 423 m_freem(m); 424 m = mbufq_dequeue(&lsta->txq); 425 } 426 KASSERT(mbufq_empty(&lsta->txq), ("%s: lsta %p has txq len %d != 0\n", 427 __func__, lsta, mbufq_len(&lsta->txq))); 428 LKPI_80211_LSTA_TXQ_LOCK_DESTROY(lsta); 429 430 /* Remove lsta from vif; that is done by the state machine. Should assert it? */ 431 432 IMPROVE("Make sure everything is cleaned up."); 433 434 /* Free lsta. */ 435 lsta->ni = NULL; 436 ni->ni_drv_data = NULL; 437 free(lsta, M_LKPI80211); 438 } 439 440 441 static enum nl80211_band 442 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 443 { 444 445 if (IEEE80211_IS_CHAN_2GHZ(c)) 446 return (NL80211_BAND_2GHZ); 447 else if (IEEE80211_IS_CHAN_5GHZ(c)) 448 return (NL80211_BAND_5GHZ); 449 #ifdef __notyet__ 450 else if () 451 return (NL80211_BAND_6GHZ); 452 else if () 453 return (NL80211_BAND_60GHZ); 454 else if (IEEE80211_IS_CHAN_GSM(c)) 455 return (NL80211_BAND_XXX); 456 #endif 457 else 458 panic("%s: unsupported band. c %p flags %#x\n", 459 __func__, c, c->ic_flags); 460 } 461 462 static uint32_t 463 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 464 { 465 466 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 467 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 468 switch (band) { 469 case NL80211_BAND_2GHZ: 470 return (IEEE80211_CHAN_2GHZ); 471 break; 472 case NL80211_BAND_5GHZ: 473 return (IEEE80211_CHAN_5GHZ); 474 break; 475 case NL80211_BAND_60GHZ: 476 break; 477 case NL80211_BAND_6GHZ: 478 break; 479 default: 480 panic("%s: unsupported band %u\n", __func__, band); 481 break; 482 } 483 484 IMPROVE(); 485 return (0x00); 486 } 487 488 #if 0 489 static enum ieee80211_ac_numbers 490 lkpi_ac_net_to_l80211(int ac) 491 { 492 493 switch (ac) { 494 case WME_AC_VO: 495 return (IEEE80211_AC_VO); 496 case WME_AC_VI: 497 return (IEEE80211_AC_VI); 498 case WME_AC_BE: 499 return (IEEE80211_AC_BE); 500 case WME_AC_BK: 501 return (IEEE80211_AC_BK); 502 default: 503 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 504 return (IEEE80211_AC_BE); 505 } 506 } 507 #endif 508 509 static enum nl80211_iftype 510 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 511 { 512 513 switch (opmode) { 514 case IEEE80211_M_IBSS: 515 return (NL80211_IFTYPE_ADHOC); 516 break; 517 case IEEE80211_M_STA: 518 return (NL80211_IFTYPE_STATION); 519 break; 520 case IEEE80211_M_WDS: 521 return (NL80211_IFTYPE_WDS); 522 break; 523 case IEEE80211_M_HOSTAP: 524 return (NL80211_IFTYPE_AP); 525 break; 526 case IEEE80211_M_MONITOR: 527 return (NL80211_IFTYPE_MONITOR); 528 break; 529 case IEEE80211_M_MBSS: 530 return (NL80211_IFTYPE_MESH_POINT); 531 break; 532 case IEEE80211_M_AHDEMO: 533 /* FALLTHROUGH */ 534 default: 535 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 536 /* FALLTHROUGH */ 537 } 538 return (NL80211_IFTYPE_UNSPECIFIED); 539 } 540 541 #ifdef LKPI_80211_HW_CRYPTO 542 static uint32_t 543 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 544 { 545 546 switch (wlan_cipher_suite) { 547 case WLAN_CIPHER_SUITE_WEP40: 548 return (IEEE80211_CRYPTO_WEP); 549 case WLAN_CIPHER_SUITE_TKIP: 550 return (IEEE80211_CRYPTO_TKIP); 551 case WLAN_CIPHER_SUITE_CCMP: 552 return (IEEE80211_CRYPTO_AES_CCM); 553 case WLAN_CIPHER_SUITE_WEP104: 554 return (IEEE80211_CRYPTO_WEP); 555 case WLAN_CIPHER_SUITE_AES_CMAC: 556 case WLAN_CIPHER_SUITE_GCMP: 557 case WLAN_CIPHER_SUITE_GCMP_256: 558 case WLAN_CIPHER_SUITE_CCMP_256: 559 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 560 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 561 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 562 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 563 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 564 break; 565 default: 566 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 567 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 568 } 569 570 return (0); 571 } 572 573 static uint32_t 574 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 575 { 576 577 switch (cipher) { 578 case IEEE80211_CIPHER_TKIP: 579 return (WLAN_CIPHER_SUITE_TKIP); 580 case IEEE80211_CIPHER_AES_CCM: 581 return (WLAN_CIPHER_SUITE_CCMP); 582 case IEEE80211_CIPHER_WEP: 583 if (keylen < 8) 584 return (WLAN_CIPHER_SUITE_WEP40); 585 else 586 return (WLAN_CIPHER_SUITE_WEP104); 587 break; 588 case IEEE80211_CIPHER_AES_OCB: 589 case IEEE80211_CIPHER_TKIPMIC: 590 case IEEE80211_CIPHER_CKIP: 591 case IEEE80211_CIPHER_NONE: 592 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 593 break; 594 default: 595 printf("%s: unknown cipher %#010x\n", __func__, cipher); 596 }; 597 return (0); 598 } 599 #endif 600 601 #ifdef __notyet__ 602 static enum ieee80211_sta_state 603 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 604 { 605 606 /* 607 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 608 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 609 */ 610 switch (state) { 611 case IEEE80211_S_INIT: 612 return (IEEE80211_STA_NOTEXIST); 613 case IEEE80211_S_SCAN: 614 return (IEEE80211_STA_NONE); 615 case IEEE80211_S_AUTH: 616 return (IEEE80211_STA_AUTH); 617 case IEEE80211_S_ASSOC: 618 return (IEEE80211_STA_ASSOC); 619 case IEEE80211_S_RUN: 620 return (IEEE80211_STA_AUTHORIZED); 621 case IEEE80211_S_CAC: 622 case IEEE80211_S_CSA: 623 case IEEE80211_S_SLEEP: 624 default: 625 UNIMPLEMENTED; 626 }; 627 628 return (IEEE80211_STA_NOTEXIST); 629 } 630 #endif 631 632 static struct linuxkpi_ieee80211_channel * 633 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 634 struct ieee80211_channel *c) 635 { 636 struct ieee80211_hw *hw; 637 struct linuxkpi_ieee80211_channel *channels; 638 enum nl80211_band band; 639 int i, nchans; 640 641 hw = LHW_TO_HW(lhw); 642 band = lkpi_net80211_chan_to_nl80211_band(c); 643 if (hw->wiphy->bands[band] == NULL) 644 return (NULL); 645 646 nchans = hw->wiphy->bands[band]->n_channels; 647 if (nchans <= 0) 648 return (NULL); 649 650 channels = hw->wiphy->bands[band]->channels; 651 for (i = 0; i < nchans; i++) { 652 if (channels[i].hw_value == c->ic_ieee) 653 return (&channels[i]); 654 } 655 656 return (NULL); 657 } 658 659 #if 0 660 static struct linuxkpi_ieee80211_channel * 661 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 662 { 663 struct linuxkpi_ieee80211_channel *chan; 664 struct ieee80211_channel *c; 665 struct lkpi_hw *lhw; 666 667 chan = NULL; 668 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 669 c = ni->ni_chan; 670 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 671 c = ic->ic_bsschan; 672 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 673 c = ic->ic_curchan; 674 else 675 c = NULL; 676 677 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 678 lhw = ic->ic_softc; 679 chan = lkpi_find_lkpi80211_chan(lhw, c); 680 } 681 682 return (chan); 683 } 684 #endif 685 686 struct linuxkpi_ieee80211_channel * 687 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 688 { 689 enum nl80211_band band; 690 691 for (band = 0; band < NUM_NL80211_BANDS; band++) { 692 struct ieee80211_supported_band *supband; 693 struct linuxkpi_ieee80211_channel *channels; 694 int i; 695 696 supband = wiphy->bands[band]; 697 if (supband == NULL || supband->n_channels == 0) 698 continue; 699 700 channels = supband->channels; 701 for (i = 0; i < supband->n_channels; i++) { 702 if (channels[i].center_freq == freq) 703 return (&channels[i]); 704 } 705 } 706 707 return (NULL); 708 } 709 710 #ifdef LKPI_80211_HW_CRYPTO 711 static int 712 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 713 enum set_key_cmd cmd) 714 { 715 struct ieee80211com *ic; 716 struct lkpi_hw *lhw; 717 struct ieee80211_hw *hw; 718 struct lkpi_vif *lvif; 719 struct ieee80211_vif *vif; 720 struct ieee80211_sta *sta; 721 struct ieee80211_node *ni; 722 struct ieee80211_key_conf *kc; 723 int error; 724 725 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 726 727 ic = vap->iv_ic; 728 lhw = ic->ic_softc; 729 hw = LHW_TO_HW(lhw); 730 lvif = VAP_TO_LVIF(vap); 731 vif = LVIF_TO_VIF(lvif); 732 733 memset(&kc, 0, sizeof(kc)); 734 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 735 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 736 k->wk_cipher->ic_cipher, k->wk_keylen); 737 kc->keyidx = k->wk_keyix; 738 #if 0 739 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 740 #endif 741 atomic64_set(&kc->tx_pn, k->wk_keytsc); 742 kc->keylen = k->wk_keylen; 743 memcpy(kc->key, k->wk_key, k->wk_keylen); 744 745 switch (kc->cipher) { 746 case WLAN_CIPHER_SUITE_CCMP: 747 kc->iv_len = k->wk_cipher->ic_header; 748 kc->icv_len = k->wk_cipher->ic_trailer; 749 break; 750 case WLAN_CIPHER_SUITE_TKIP: 751 default: 752 IMPROVE(); 753 return (0); 754 }; 755 756 ni = vap->iv_bss; 757 sta = ieee80211_find_sta(vif, ni->ni_bssid); 758 if (sta != NULL) { 759 struct lkpi_sta *lsta; 760 761 lsta = STA_TO_LSTA(sta); 762 lsta->kc = kc; 763 } 764 765 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 766 if (error != 0) { 767 /* XXX-BZ leaking kc currently */ 768 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 769 return (0); 770 } else { 771 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 772 "flags %#10x\n", __func__, 773 kc->keyidx, kc->hw_key_idx, kc->flags); 774 return (1); 775 } 776 } 777 778 static int 779 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 780 { 781 782 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 783 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 784 } 785 static int 786 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 787 { 788 789 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 790 } 791 #endif 792 793 static u_int 794 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 795 { 796 struct netdev_hw_addr_list *mc_list; 797 struct netdev_hw_addr *addr; 798 799 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 800 __func__, arg, sdl, cnt)); 801 802 mc_list = arg; 803 /* If it is on the list already skip it. */ 804 netdev_hw_addr_list_for_each(addr, mc_list) { 805 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 806 return (0); 807 } 808 809 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 810 if (addr == NULL) 811 return (0); 812 813 INIT_LIST_HEAD(&addr->addr_list); 814 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 815 /* XXX this should be a netdev function? */ 816 list_add(&addr->addr_list, &mc_list->addr_list); 817 mc_list->count++; 818 819 #ifdef LINUXKPI_DEBUG_80211 820 if (linuxkpi_debug_80211 & D80211_TRACE) 821 printf("%s:%d: mc_list count %d: added %6D\n", 822 __func__, __LINE__, mc_list->count, addr->addr, ":"); 823 #endif 824 825 return (1); 826 } 827 828 static void 829 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 830 { 831 struct lkpi_hw *lhw; 832 struct ieee80211_hw *hw; 833 struct netdev_hw_addr_list mc_list; 834 struct list_head *le, *next; 835 struct netdev_hw_addr *addr; 836 struct ieee80211vap *vap; 837 u64 mc; 838 unsigned int changed_flags, total_flags; 839 840 lhw = ic->ic_softc; 841 842 if (lhw->ops->prepare_multicast == NULL || 843 lhw->ops->configure_filter == NULL) 844 return; 845 846 if (!lhw->update_mc && !force) 847 return; 848 849 changed_flags = total_flags = 0; 850 mc_list.count = 0; 851 INIT_LIST_HEAD(&mc_list.addr_list); 852 if (ic->ic_allmulti == 0) { 853 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 854 if_foreach_llmaddr(vap->iv_ifp, 855 lkpi_ic_update_mcast_copy, &mc_list); 856 } else { 857 changed_flags |= FIF_ALLMULTI; 858 } 859 860 hw = LHW_TO_HW(lhw); 861 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 862 /* 863 * XXX-BZ make sure to get this sorted what is a change, 864 * what gets all set; what was already set? 865 */ 866 total_flags = changed_flags; 867 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 868 869 #ifdef LINUXKPI_DEBUG_80211 870 if (linuxkpi_debug_80211 & D80211_TRACE) 871 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 872 __func__, changed_flags, mc_list.count, total_flags); 873 #endif 874 875 if (mc_list.count != 0) { 876 list_for_each_safe(le, next, &mc_list.addr_list) { 877 addr = list_entry(le, struct netdev_hw_addr, addr_list); 878 free(addr, M_LKPI80211); 879 mc_list.count--; 880 } 881 } 882 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 883 __func__, &mc_list, mc_list.count)); 884 } 885 886 static enum ieee80211_bss_changed 887 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 888 struct ieee80211vap *vap, const char *_f, int _l) 889 { 890 enum ieee80211_bss_changed bss_changed; 891 892 bss_changed = 0; 893 894 #ifdef LINUXKPI_DEBUG_80211 895 if (linuxkpi_debug_80211 & D80211_TRACE) 896 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 897 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 898 "sync_device_ts %u bss_changed %#08x\n", 899 __func__, __LINE__, _f, _l, 900 vif->cfg.assoc, vif->cfg.aid, 901 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 902 vif->bss_conf.sync_dtim_count, 903 (uintmax_t)vif->bss_conf.sync_tsf, 904 vif->bss_conf.sync_device_ts, 905 bss_changed); 906 #endif 907 908 if (vif->bss_conf.beacon_int != ni->ni_intval) { 909 vif->bss_conf.beacon_int = ni->ni_intval; 910 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 911 if (vif->bss_conf.beacon_int < 16) 912 vif->bss_conf.beacon_int = 16; 913 bss_changed |= BSS_CHANGED_BEACON_INT; 914 } 915 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 916 vap->iv_dtim_period > 0) { 917 vif->bss_conf.dtim_period = vap->iv_dtim_period; 918 bss_changed |= BSS_CHANGED_BEACON_INFO; 919 } 920 921 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 922 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 923 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 924 925 #ifdef LINUXKPI_DEBUG_80211 926 if (linuxkpi_debug_80211 & D80211_TRACE) 927 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 928 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 929 "sync_device_ts %u bss_changed %#08x\n", 930 __func__, __LINE__, _f, _l, 931 vif->cfg.assoc, vif->cfg.aid, 932 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 933 vif->bss_conf.sync_dtim_count, 934 (uintmax_t)vif->bss_conf.sync_tsf, 935 vif->bss_conf.sync_device_ts, 936 bss_changed); 937 #endif 938 939 return (bss_changed); 940 } 941 942 static void 943 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 944 { 945 struct ieee80211_hw *hw; 946 int error; 947 bool cancel; 948 949 LKPI_80211_LHW_SCAN_LOCK(lhw); 950 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 951 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 952 if (!cancel) 953 return; 954 955 hw = LHW_TO_HW(lhw); 956 957 IEEE80211_UNLOCK(lhw->ic); 958 LKPI_80211_LHW_LOCK(lhw); 959 /* Need to cancel the scan. */ 960 lkpi_80211_mo_cancel_hw_scan(hw, vif); 961 LKPI_80211_LHW_UNLOCK(lhw); 962 963 /* Need to make sure we see ieee80211_scan_completed. */ 964 LKPI_80211_LHW_SCAN_LOCK(lhw); 965 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 966 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 967 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 968 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 969 970 IEEE80211_LOCK(lhw->ic); 971 972 if (cancel) 973 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 974 __func__, error, lhw, vif); 975 } 976 977 static void 978 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 979 { 980 struct lkpi_hw *lhw; 981 int error; 982 bool old; 983 984 old = hw->conf.flags & IEEE80211_CONF_IDLE; 985 if (old == new) 986 return; 987 988 hw->conf.flags ^= IEEE80211_CONF_IDLE; 989 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 990 if (error != 0 && error != EOPNOTSUPP) { 991 lhw = HW_TO_LHW(hw); 992 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 993 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 994 } 995 } 996 997 static void 998 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 999 struct lkpi_hw *lhw) 1000 { 1001 sta->aid = 0; 1002 if (vif->cfg.assoc) { 1003 struct ieee80211_hw *hw; 1004 enum ieee80211_bss_changed changed; 1005 1006 lhw->update_mc = true; 1007 lkpi_update_mcast_filter(lhw->ic, true); 1008 1009 changed = 0; 1010 vif->cfg.assoc = false; 1011 vif->cfg.aid = 0; 1012 changed |= BSS_CHANGED_ASSOC; 1013 /* 1014 * This will remove the sta from firmware for iwlwifi. 1015 * So confusing that they use state and flags and ... ^%$%#%$^. 1016 */ 1017 IMPROVE(); 1018 hw = LHW_TO_HW(lhw); 1019 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 1020 changed); 1021 1022 lkpi_hw_conf_idle(hw, true); 1023 } 1024 } 1025 1026 static void 1027 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 1028 bool dequeue_seen, bool no_emptyq) 1029 { 1030 struct lkpi_txq *ltxq; 1031 int tid; 1032 bool ltxq_empty; 1033 1034 /* Wake up all queues to know they are allocated in the driver. */ 1035 for (tid = 0; tid < nitems(sta->txq); tid++) { 1036 1037 if (tid == IEEE80211_NUM_TIDS) { 1038 IMPROVE("station specific?"); 1039 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 1040 continue; 1041 } else if (tid >= hw->queues) 1042 continue; 1043 1044 if (sta->txq[tid] == NULL) 1045 continue; 1046 1047 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1048 if (dequeue_seen && !ltxq->seen_dequeue) 1049 continue; 1050 1051 LKPI_80211_LTXQ_LOCK(ltxq); 1052 ltxq_empty = skb_queue_empty(<xq->skbq); 1053 LKPI_80211_LTXQ_UNLOCK(ltxq); 1054 if (no_emptyq && ltxq_empty) 1055 continue; 1056 1057 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 1058 } 1059 } 1060 1061 /* -------------------------------------------------------------------------- */ 1062 1063 static int 1064 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1065 { 1066 1067 return (0); 1068 } 1069 1070 /* lkpi_iv_newstate() handles the stop scan case generally. */ 1071 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 1072 1073 static int 1074 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1075 { 1076 struct linuxkpi_ieee80211_channel *chan; 1077 struct lkpi_chanctx *lchanctx; 1078 struct ieee80211_chanctx_conf *conf; 1079 struct lkpi_hw *lhw; 1080 struct ieee80211_hw *hw; 1081 struct lkpi_vif *lvif; 1082 struct ieee80211_vif *vif; 1083 struct ieee80211_node *ni; 1084 struct lkpi_sta *lsta; 1085 enum ieee80211_bss_changed bss_changed; 1086 struct ieee80211_prep_tx_info prep_tx_info; 1087 uint32_t changed; 1088 int error; 1089 1090 /* 1091 * In here we use vap->iv_bss until lvif->lvif_bss is set. 1092 * For all later (STATE >= AUTH) functions we need to use the lvif 1093 * cache which will be tracked even through (*iv_update_bss)(). 1094 */ 1095 1096 if (vap->iv_bss == NULL) { 1097 ic_printf(vap->iv_ic, "%s: no iv_bss for vap %p\n", __func__, vap); 1098 return (EINVAL); 1099 } 1100 /* 1101 * Keep the ni alive locally. In theory (and practice) iv_bss can change 1102 * once we unlock here. This is due to net80211 allowing state changes 1103 * and new join1() despite having an active node as well as due to 1104 * the fact that the iv_bss can be swapped under the hood in (*iv_update_bss). 1105 */ 1106 ni = ieee80211_ref_node(vap->iv_bss); 1107 if (ni->ni_chan == NULL || ni->ni_chan == IEEE80211_CHAN_ANYC) { 1108 ic_printf(vap->iv_ic, "%s: no channel set for iv_bss ni %p " 1109 "on vap %p\n", __func__, ni, vap); 1110 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1111 return (EINVAL); 1112 } 1113 1114 lhw = vap->iv_ic->ic_softc; 1115 chan = lkpi_find_lkpi80211_chan(lhw, ni->ni_chan); 1116 if (chan == NULL) { 1117 ic_printf(vap->iv_ic, "%s: failed to get LKPI channel from " 1118 "iv_bss ni %p on vap %p\n", __func__, ni, vap); 1119 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1120 return (ESRCH); 1121 } 1122 1123 hw = LHW_TO_HW(lhw); 1124 lvif = VAP_TO_LVIF(vap); 1125 vif = LVIF_TO_VIF(lvif); 1126 1127 LKPI_80211_LVIF_LOCK(lvif); 1128 /* XXX-BZ KASSERT later? */ 1129 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) { 1130 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1131 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1132 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1133 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1134 lvif->lvif_bss_synched); 1135 return (EBUSY); 1136 } 1137 LKPI_80211_LVIF_UNLOCK(lvif); 1138 1139 IEEE80211_UNLOCK(vap->iv_ic); 1140 LKPI_80211_LHW_LOCK(lhw); 1141 1142 /* Add chanctx (or if exists, change it). */ 1143 if (vif->chanctx_conf != NULL) { 1144 conf = vif->chanctx_conf; 1145 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1146 IMPROVE("diff changes for changed, working on live copy, rcu"); 1147 } else { 1148 /* Keep separate alloc as in Linux this is rcu managed? */ 1149 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 1150 M_LKPI80211, M_WAITOK | M_ZERO); 1151 conf = &lchanctx->conf; 1152 } 1153 1154 conf->rx_chains_dynamic = 1; 1155 conf->rx_chains_static = 1; 1156 conf->radar_enabled = 1157 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 1158 conf->def.chan = chan; 1159 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 1160 conf->def.center_freq1 = chan->center_freq; 1161 conf->def.center_freq2 = 0; 1162 IMPROVE("Check vht_cap from band not just chan?"); 1163 KASSERT(ni->ni_chan != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC, 1164 ("%s:%d: ni %p ni_chan %p\n", __func__, __LINE__, ni, ni->ni_chan)); 1165 #ifdef LKPI_80211_HT 1166 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 1167 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 1168 conf->def.width = NL80211_CHAN_WIDTH_40; 1169 } else 1170 conf->def.width = NL80211_CHAN_WIDTH_20; 1171 } 1172 #endif 1173 #ifdef LKPI_80211_VHT 1174 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 1175 #ifdef __notyet__ 1176 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 1177 conf->def.width = NL80211_CHAN_WIDTH_80P80; 1178 conf->def.center_freq2 = 0; /* XXX */ 1179 } else 1180 #endif 1181 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 1182 conf->def.width = NL80211_CHAN_WIDTH_160; 1183 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 1184 conf->def.width = NL80211_CHAN_WIDTH_80; 1185 } 1186 #endif 1187 /* Responder ... */ 1188 conf->min_def.chan = chan; 1189 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 1190 conf->min_def.center_freq1 = chan->center_freq; 1191 conf->min_def.center_freq2 = 0; 1192 IMPROVE("currently 20_NOHT min_def only"); 1193 1194 /* Set bss info (bss_info_changed). */ 1195 bss_changed = 0; 1196 vif->bss_conf.bssid = ni->ni_bssid; 1197 bss_changed |= BSS_CHANGED_BSSID; 1198 vif->bss_conf.txpower = ni->ni_txpower; 1199 bss_changed |= BSS_CHANGED_TXPOWER; 1200 vif->cfg.idle = false; 1201 bss_changed |= BSS_CHANGED_IDLE; 1202 1203 /* vif->bss_conf.basic_rates ? Where exactly? */ 1204 1205 /* Should almost assert it is this. */ 1206 vif->cfg.assoc = false; 1207 vif->cfg.aid = 0; 1208 1209 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1210 1211 error = 0; 1212 if (vif->chanctx_conf != NULL) { 1213 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 1214 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 1215 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 1216 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 1217 lkpi_80211_mo_change_chanctx(hw, conf, changed); 1218 } else { 1219 error = lkpi_80211_mo_add_chanctx(hw, conf); 1220 if (error == 0 || error == EOPNOTSUPP) { 1221 vif->bss_conf.chandef.chan = conf->def.chan; 1222 vif->bss_conf.chandef.width = conf->def.width; 1223 vif->bss_conf.chandef.center_freq1 = 1224 conf->def.center_freq1; 1225 #ifdef LKPI_80211_HT 1226 if (vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_40) { 1227 /* Note: it is 10 not 20. */ 1228 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) 1229 vif->bss_conf.chandef.center_freq1 += 10; 1230 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 1231 vif->bss_conf.chandef.center_freq1 -= 10; 1232 } 1233 #endif 1234 vif->bss_conf.chandef.center_freq2 = 1235 conf->def.center_freq2; 1236 } else { 1237 ic_printf(vap->iv_ic, "%s:%d: mo_add_chanctx " 1238 "failed: %d\n", __func__, __LINE__, error); 1239 goto out; 1240 } 1241 1242 vif->bss_conf.chanctx_conf = conf; 1243 1244 /* Assign vif chanctx. */ 1245 if (error == 0) 1246 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1247 &vif->bss_conf, conf); 1248 if (error == EOPNOTSUPP) 1249 error = 0; 1250 if (error != 0) { 1251 ic_printf(vap->iv_ic, "%s:%d: mo_assign_vif_chanctx " 1252 "failed: %d\n", __func__, __LINE__, error); 1253 lkpi_80211_mo_remove_chanctx(hw, conf); 1254 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1255 free(lchanctx, M_LKPI80211); 1256 goto out; 1257 } 1258 } 1259 IMPROVE("update radiotap chan fields too"); 1260 1261 /* RATES */ 1262 IMPROVE("bss info: not all needs to come now and rates are missing"); 1263 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1264 1265 /* 1266 * Given ni and lsta are 1:1 from alloc to free we can assert that 1267 * ni always has lsta data attach despite net80211 node swapping 1268 * under the hoods. 1269 */ 1270 KASSERT(ni->ni_drv_data != NULL, ("%s: ni %p ni_drv_data %p\n", 1271 __func__, ni, ni->ni_drv_data)); 1272 lsta = ni->ni_drv_data; 1273 1274 LKPI_80211_LVIF_LOCK(lvif); 1275 /* Re-check given (*iv_update_bss) could have happened. */ 1276 /* XXX-BZ KASSERT later? or deal as error? */ 1277 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) 1278 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1279 "lvif_bss->ni %p synched %d, ni %p lsta %p\n", __func__, __LINE__, 1280 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1281 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1282 lvif->lvif_bss_synched, ni, lsta); 1283 1284 /* 1285 * Reference the ni for this cache of lsta/ni on lvif->lvif_bss 1286 * essentially out lsta version of the iv_bss. 1287 * Do NOT use iv_bss here anymore as that may have diverged from our 1288 * function local ni already and would lead to inconsistencies. 1289 */ 1290 ieee80211_ref_node(ni); 1291 lvif->lvif_bss = lsta; 1292 lvif->lvif_bss_synched = true; 1293 1294 /* Insert the [l]sta into the list of known stations. */ 1295 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1296 LKPI_80211_LVIF_UNLOCK(lvif); 1297 1298 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1299 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1300 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1301 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1302 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1303 if (error != 0) { 1304 IMPROVE("do we need to undo the chan ctx?"); 1305 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1306 "failed: %d\n", __func__, __LINE__, error); 1307 goto out; 1308 } 1309 #if 0 1310 lsta->added_to_drv = true; /* mo manages. */ 1311 #endif 1312 1313 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1314 1315 #if 0 1316 /* 1317 * Wakeup all queues now that sta is there so we have as much time to 1318 * possibly prepare the queue in the driver to be ready for the 1st 1319 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1320 * is no guarantee or way to check. 1321 * XXX-BZ and by now we know that this does not work on all drivers 1322 * for all queues. 1323 */ 1324 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1325 #endif 1326 1327 /* Start mgd_prepare_tx. */ 1328 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1329 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1330 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1331 lsta->in_mgd = true; 1332 1333 /* 1334 * What is going to happen next: 1335 * - <twiddle> .. we should end up in "auth_to_assoc" 1336 * - event_callback 1337 * - update sta_state (NONE to AUTH) 1338 * - mgd_complete_tx 1339 * (ideally we'd do that on a callback for something else ...) 1340 */ 1341 1342 out: 1343 LKPI_80211_LHW_UNLOCK(lhw); 1344 IEEE80211_LOCK(vap->iv_ic); 1345 /* 1346 * Release the reference that keop the ni stable locally 1347 * during the work of this function. 1348 */ 1349 if (ni != NULL) 1350 ieee80211_free_node(ni); 1351 return (error); 1352 } 1353 1354 static int 1355 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1356 { 1357 struct lkpi_hw *lhw; 1358 struct ieee80211_hw *hw; 1359 struct lkpi_vif *lvif; 1360 struct ieee80211_vif *vif; 1361 struct ieee80211_node *ni; 1362 struct lkpi_sta *lsta; 1363 struct ieee80211_sta *sta; 1364 struct ieee80211_prep_tx_info prep_tx_info; 1365 int error; 1366 1367 lhw = vap->iv_ic->ic_softc; 1368 hw = LHW_TO_HW(lhw); 1369 lvif = VAP_TO_LVIF(vap); 1370 vif = LVIF_TO_VIF(lvif); 1371 1372 LKPI_80211_LVIF_LOCK(lvif); 1373 #ifdef LINUXKPI_DEBUG_80211 1374 /* XXX-BZ KASSERT later; state going down so no action. */ 1375 if (lvif->lvif_bss == NULL) 1376 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1377 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1378 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1379 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1380 lvif->lvif_bss_synched); 1381 #endif 1382 1383 lsta = lvif->lvif_bss; 1384 LKPI_80211_LVIF_UNLOCK(lvif); 1385 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1386 "lvif %p vap %p\n", __func__, 1387 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1388 ni = lsta->ni; /* Reference held for lvif_bss. */ 1389 sta = LSTA_TO_STA(lsta); 1390 1391 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1392 1393 IEEE80211_UNLOCK(vap->iv_ic); 1394 LKPI_80211_LHW_LOCK(lhw); 1395 1396 /* flush, drop. */ 1397 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1398 1399 /* Wake tx queues to get packet(s) out. */ 1400 lkpi_wake_tx_queues(hw, sta, true, true); 1401 1402 /* flush, no drop */ 1403 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1404 1405 /* End mgd_complete_tx. */ 1406 if (lsta->in_mgd) { 1407 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1408 prep_tx_info.success = false; 1409 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1410 lsta->in_mgd = false; 1411 } 1412 1413 /* sync_rx_queues */ 1414 lkpi_80211_mo_sync_rx_queues(hw); 1415 1416 /* sta_pre_rcu_remove */ 1417 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1418 1419 /* Take the station down. */ 1420 1421 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1422 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1423 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1424 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1425 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1426 if (error != 0) { 1427 IMPROVE("do we need to undo the chan ctx?"); 1428 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1429 "failed: %d\n", __func__, __LINE__, error); 1430 goto out; 1431 } 1432 #if 0 1433 lsta->added_to_drv = false; /* mo manages. */ 1434 #endif 1435 1436 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1437 1438 LKPI_80211_LVIF_LOCK(lvif); 1439 /* Remove ni reference for this cache of lsta. */ 1440 lvif->lvif_bss = NULL; 1441 lvif->lvif_bss_synched = false; 1442 LKPI_80211_LVIF_UNLOCK(lvif); 1443 lkpi_lsta_remove(lsta, lvif); 1444 /* 1445 * The very last release the reference on the ni for the ni/lsta on 1446 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1447 * and potentially freed. 1448 */ 1449 ieee80211_free_node(ni); 1450 1451 /* conf_tx */ 1452 1453 /* Take the chan ctx down. */ 1454 if (vif->chanctx_conf != NULL) { 1455 struct lkpi_chanctx *lchanctx; 1456 struct ieee80211_chanctx_conf *conf; 1457 1458 conf = vif->chanctx_conf; 1459 /* Remove vif context. */ 1460 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1461 /* NB: vif->chanctx_conf is NULL now. */ 1462 1463 /* Remove chan ctx. */ 1464 lkpi_80211_mo_remove_chanctx(hw, conf); 1465 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1466 free(lchanctx, M_LKPI80211); 1467 } 1468 1469 out: 1470 LKPI_80211_LHW_UNLOCK(lhw); 1471 IEEE80211_LOCK(vap->iv_ic); 1472 return (error); 1473 } 1474 1475 static int 1476 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1477 { 1478 int error; 1479 1480 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1481 if (error == 0) 1482 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1483 return (error); 1484 } 1485 1486 static int 1487 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1488 { 1489 struct lkpi_hw *lhw; 1490 struct ieee80211_hw *hw; 1491 struct lkpi_vif *lvif; 1492 struct ieee80211_vif *vif; 1493 struct lkpi_sta *lsta; 1494 struct ieee80211_prep_tx_info prep_tx_info; 1495 int error; 1496 1497 lhw = vap->iv_ic->ic_softc; 1498 hw = LHW_TO_HW(lhw); 1499 lvif = VAP_TO_LVIF(vap); 1500 vif = LVIF_TO_VIF(lvif); 1501 1502 IEEE80211_UNLOCK(vap->iv_ic); 1503 LKPI_80211_LHW_LOCK(lhw); 1504 1505 LKPI_80211_LVIF_LOCK(lvif); 1506 /* XXX-BZ KASSERT later? */ 1507 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1508 #ifdef LINUXKPI_DEBUG_80211 1509 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1510 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1511 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1512 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1513 lvif->lvif_bss_synched); 1514 #endif 1515 error = ENOTRECOVERABLE; 1516 LKPI_80211_LVIF_UNLOCK(lvif); 1517 goto out; 1518 } 1519 lsta = lvif->lvif_bss; 1520 LKPI_80211_LVIF_UNLOCK(lvif); 1521 1522 KASSERT(lsta != NULL, ("%s: lsta %p\n", __func__, lsta)); 1523 1524 /* Finish auth. */ 1525 IMPROVE("event callback"); 1526 1527 /* Update sta_state (NONE to AUTH). */ 1528 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1529 "NONE: %#x\n", __func__, lsta, lsta->state)); 1530 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1531 if (error != 0) { 1532 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1533 "failed: %d\n", __func__, __LINE__, error); 1534 goto out; 1535 } 1536 1537 /* End mgd_complete_tx. */ 1538 if (lsta->in_mgd) { 1539 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1540 prep_tx_info.success = true; 1541 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1542 lsta->in_mgd = false; 1543 } 1544 1545 /* Now start assoc. */ 1546 1547 /* Start mgd_prepare_tx. */ 1548 if (!lsta->in_mgd) { 1549 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1550 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1551 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1552 lsta->in_mgd = true; 1553 } 1554 1555 /* Wake tx queue to get packet out. */ 1556 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1557 1558 /* 1559 * <twiddle> .. we end up in "assoc_to_run" 1560 * - update sta_state (AUTH to ASSOC) 1561 * - conf_tx [all] 1562 * - bss_info_changed (assoc, aid, ssid, ..) 1563 * - change_chanctx (if needed) 1564 * - event_callback 1565 * - mgd_complete_tx 1566 */ 1567 1568 out: 1569 LKPI_80211_LHW_UNLOCK(lhw); 1570 IEEE80211_LOCK(vap->iv_ic); 1571 return (error); 1572 } 1573 1574 /* auth_to_auth, assoc_to_assoc. */ 1575 static int 1576 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1577 { 1578 struct lkpi_hw *lhw; 1579 struct ieee80211_hw *hw; 1580 struct lkpi_vif *lvif; 1581 struct ieee80211_vif *vif; 1582 struct lkpi_sta *lsta; 1583 struct ieee80211_prep_tx_info prep_tx_info; 1584 int error; 1585 1586 lhw = vap->iv_ic->ic_softc; 1587 hw = LHW_TO_HW(lhw); 1588 lvif = VAP_TO_LVIF(vap); 1589 vif = LVIF_TO_VIF(lvif); 1590 1591 IEEE80211_UNLOCK(vap->iv_ic); 1592 LKPI_80211_LHW_LOCK(lhw); 1593 1594 LKPI_80211_LVIF_LOCK(lvif); 1595 /* XXX-BZ KASSERT later? */ 1596 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1597 #ifdef LINUXKPI_DEBUG_80211 1598 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1599 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1600 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1601 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1602 lvif->lvif_bss_synched); 1603 #endif 1604 LKPI_80211_LVIF_UNLOCK(lvif); 1605 error = ENOTRECOVERABLE; 1606 goto out; 1607 } 1608 lsta = lvif->lvif_bss; 1609 LKPI_80211_LVIF_UNLOCK(lvif); 1610 1611 KASSERT(lsta != NULL, ("%s: lsta %p! lvif %p vap %p\n", __func__, 1612 lsta, lvif, vap)); 1613 1614 IMPROVE("event callback?"); 1615 1616 /* End mgd_complete_tx. */ 1617 if (lsta->in_mgd) { 1618 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1619 prep_tx_info.success = false; 1620 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1621 lsta->in_mgd = false; 1622 } 1623 1624 /* Now start assoc. */ 1625 1626 /* Start mgd_prepare_tx. */ 1627 if (!lsta->in_mgd) { 1628 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1629 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1630 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1631 lsta->in_mgd = true; 1632 } 1633 1634 error = 0; 1635 out: 1636 LKPI_80211_LHW_UNLOCK(lhw); 1637 IEEE80211_LOCK(vap->iv_ic); 1638 1639 return (error); 1640 } 1641 1642 static int 1643 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1644 { 1645 struct lkpi_hw *lhw; 1646 struct ieee80211_hw *hw; 1647 struct lkpi_vif *lvif; 1648 struct ieee80211_vif *vif; 1649 struct ieee80211_node *ni; 1650 struct lkpi_sta *lsta; 1651 struct ieee80211_sta *sta; 1652 struct ieee80211_prep_tx_info prep_tx_info; 1653 enum ieee80211_bss_changed bss_changed; 1654 int error; 1655 1656 lhw = vap->iv_ic->ic_softc; 1657 hw = LHW_TO_HW(lhw); 1658 lvif = VAP_TO_LVIF(vap); 1659 vif = LVIF_TO_VIF(lvif); 1660 1661 IEEE80211_UNLOCK(vap->iv_ic); 1662 LKPI_80211_LHW_LOCK(lhw); 1663 1664 LKPI_80211_LVIF_LOCK(lvif); 1665 #ifdef LINUXKPI_DEBUG_80211 1666 /* XXX-BZ KASSERT later; state going down so no action. */ 1667 if (lvif->lvif_bss == NULL) 1668 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1669 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1670 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1671 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1672 lvif->lvif_bss_synched); 1673 #endif 1674 lsta = lvif->lvif_bss; 1675 LKPI_80211_LVIF_UNLOCK(lvif); 1676 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1677 "lvif %p vap %p\n", __func__, 1678 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1679 1680 ni = lsta->ni; /* Reference held for lvif_bss. */ 1681 sta = LSTA_TO_STA(lsta); 1682 1683 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1684 1685 /* flush, drop. */ 1686 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1687 1688 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1689 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1690 !lsta->in_mgd) { 1691 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1692 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1693 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1694 lsta->in_mgd = true; 1695 } 1696 1697 LKPI_80211_LHW_UNLOCK(lhw); 1698 IEEE80211_LOCK(vap->iv_ic); 1699 1700 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1701 error = lvif->iv_newstate(vap, nstate, arg); 1702 if (error != 0) { 1703 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1704 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1705 goto outni; 1706 } 1707 1708 IEEE80211_UNLOCK(vap->iv_ic); 1709 LKPI_80211_LHW_LOCK(lhw); 1710 1711 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1712 1713 /* Wake tx queues to get packet(s) out. */ 1714 lkpi_wake_tx_queues(hw, sta, true, true); 1715 1716 /* flush, no drop */ 1717 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1718 1719 /* End mgd_complete_tx. */ 1720 if (lsta->in_mgd) { 1721 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1722 prep_tx_info.success = false; 1723 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1724 lsta->in_mgd = false; 1725 } 1726 1727 /* sync_rx_queues */ 1728 lkpi_80211_mo_sync_rx_queues(hw); 1729 1730 /* sta_pre_rcu_remove */ 1731 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1732 1733 /* Take the station down. */ 1734 1735 /* Update sta and change state (from AUTH) to NONE. */ 1736 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1737 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1738 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1739 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1740 if (error != 0) { 1741 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1742 "failed: %d\n", __func__, __LINE__, error); 1743 goto out; 1744 } 1745 1746 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1747 1748 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1749 /* 1750 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 1751 * as otherwise drivers (iwlwifi at least) will silently not remove 1752 * the sta from the firmware and when we will add a new one trigger 1753 * a fw assert. 1754 */ 1755 lkpi_disassoc(sta, vif, lhw); 1756 1757 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1758 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1759 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1760 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1761 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1762 if (error != 0) { 1763 IMPROVE("do we need to undo the chan ctx?"); 1764 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1765 "failed: %d\n", __func__, __LINE__, error); 1766 goto out; 1767 } 1768 1769 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1770 1771 IMPROVE("Any bss_info changes to announce?"); 1772 bss_changed = 0; 1773 vif->bss_conf.qos = 0; 1774 bss_changed |= BSS_CHANGED_QOS; 1775 vif->cfg.ssid_len = 0; 1776 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1777 bss_changed |= BSS_CHANGED_BSSID; 1778 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1779 1780 LKPI_80211_LVIF_LOCK(lvif); 1781 /* Remove ni reference for this cache of lsta. */ 1782 lvif->lvif_bss = NULL; 1783 lvif->lvif_bss_synched = false; 1784 LKPI_80211_LVIF_UNLOCK(lvif); 1785 lkpi_lsta_remove(lsta, lvif); 1786 /* 1787 * The very last release the reference on the ni for the ni/lsta on 1788 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1789 * and potentially freed. 1790 */ 1791 ieee80211_free_node(ni); 1792 1793 /* conf_tx */ 1794 1795 /* Take the chan ctx down. */ 1796 if (vif->chanctx_conf != NULL) { 1797 struct lkpi_chanctx *lchanctx; 1798 struct ieee80211_chanctx_conf *conf; 1799 1800 conf = vif->chanctx_conf; 1801 /* Remove vif context. */ 1802 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1803 /* NB: vif->chanctx_conf is NULL now. */ 1804 1805 /* Remove chan ctx. */ 1806 lkpi_80211_mo_remove_chanctx(hw, conf); 1807 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1808 free(lchanctx, M_LKPI80211); 1809 } 1810 1811 error = EALREADY; 1812 out: 1813 LKPI_80211_LHW_UNLOCK(lhw); 1814 IEEE80211_LOCK(vap->iv_ic); 1815 outni: 1816 return (error); 1817 } 1818 1819 static int 1820 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1821 { 1822 int error; 1823 1824 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1825 if (error != 0 && error != EALREADY) 1826 return (error); 1827 1828 /* At this point iv_bss is long a new node! */ 1829 1830 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1831 return (error); 1832 } 1833 1834 static int 1835 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1836 { 1837 int error; 1838 1839 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1840 return (error); 1841 } 1842 1843 static int 1844 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1845 { 1846 int error; 1847 1848 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1849 return (error); 1850 } 1851 1852 static int 1853 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1854 { 1855 struct lkpi_hw *lhw; 1856 struct ieee80211_hw *hw; 1857 struct lkpi_vif *lvif; 1858 struct ieee80211_vif *vif; 1859 struct ieee80211_node *ni; 1860 struct lkpi_sta *lsta; 1861 struct ieee80211_sta *sta; 1862 struct ieee80211_prep_tx_info prep_tx_info; 1863 enum ieee80211_bss_changed bss_changed; 1864 int error; 1865 1866 lhw = vap->iv_ic->ic_softc; 1867 hw = LHW_TO_HW(lhw); 1868 lvif = VAP_TO_LVIF(vap); 1869 vif = LVIF_TO_VIF(lvif); 1870 1871 IEEE80211_UNLOCK(vap->iv_ic); 1872 LKPI_80211_LHW_LOCK(lhw); 1873 1874 LKPI_80211_LVIF_LOCK(lvif); 1875 /* XXX-BZ KASSERT later? */ 1876 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1877 #ifdef LINUXKPI_DEBUG_80211 1878 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1879 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1880 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1881 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1882 lvif->lvif_bss_synched); 1883 #endif 1884 LKPI_80211_LVIF_UNLOCK(lvif); 1885 error = ENOTRECOVERABLE; 1886 goto out; 1887 } 1888 lsta = lvif->lvif_bss; 1889 LKPI_80211_LVIF_UNLOCK(lvif); 1890 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1891 "lvif %p vap %p\n", __func__, 1892 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1893 1894 ni = lsta->ni; /* Reference held for lvif_bss. */ 1895 1896 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1897 "and to lesser extend ieee80211_notify_node_join"); 1898 1899 /* Finish assoc. */ 1900 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1901 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1902 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1903 sta = LSTA_TO_STA(lsta); 1904 sta->aid = IEEE80211_NODE_AID(ni); 1905 #ifdef LKPI_80211_WME 1906 if (vap->iv_flags & IEEE80211_F_WME) 1907 sta->wme = true; 1908 #endif 1909 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1910 if (error != 0) { 1911 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1912 "failed: %d\n", __func__, __LINE__, error); 1913 goto out; 1914 } 1915 1916 IMPROVE("wme / conf_tx [all]"); 1917 1918 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1919 bss_changed = 0; 1920 #ifdef LKPI_80211_WME 1921 bss_changed |= lkpi_wme_update(lhw, vap, true); 1922 #endif 1923 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 1924 vif->cfg.assoc = true; 1925 vif->cfg.aid = IEEE80211_NODE_AID(ni); 1926 bss_changed |= BSS_CHANGED_ASSOC; 1927 } 1928 /* We set SSID but this is not BSSID! */ 1929 vif->cfg.ssid_len = ni->ni_esslen; 1930 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 1931 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1932 vif->bss_conf.use_short_preamble) { 1933 vif->bss_conf.use_short_preamble ^= 1; 1934 /* bss_changed |= BSS_CHANGED_??? */ 1935 } 1936 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1937 vif->bss_conf.use_short_slot) { 1938 vif->bss_conf.use_short_slot ^= 1; 1939 /* bss_changed |= BSS_CHANGED_??? */ 1940 } 1941 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1942 vif->bss_conf.qos) { 1943 vif->bss_conf.qos ^= 1; 1944 bss_changed |= BSS_CHANGED_QOS; 1945 } 1946 1947 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1948 1949 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1950 1951 /* - change_chanctx (if needed) 1952 * - event_callback 1953 */ 1954 1955 /* End mgd_complete_tx. */ 1956 if (lsta->in_mgd) { 1957 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1958 prep_tx_info.success = true; 1959 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1960 lsta->in_mgd = false; 1961 } 1962 1963 lkpi_hw_conf_idle(hw, false); 1964 1965 /* 1966 * And then: 1967 * - (more packets)? 1968 * - set_key 1969 * - set_default_unicast_key 1970 * - set_key (?) 1971 * - ipv6_addr_change (?) 1972 */ 1973 /* Prepare_multicast && configure_filter. */ 1974 lhw->update_mc = true; 1975 lkpi_update_mcast_filter(vap->iv_ic, true); 1976 1977 if (!ieee80211_node_is_authorized(ni)) { 1978 IMPROVE("net80211 does not consider node authorized"); 1979 } 1980 1981 #if defined(LKPI_80211_HT) 1982 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 1983 lkpi_sta_sync_ht_from_ni(sta, ni, NULL); 1984 #endif 1985 1986 /* Update sta_state (ASSOC to AUTHORIZED). */ 1987 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1988 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1989 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1990 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1991 if (error != 0) { 1992 IMPROVE("undo some changes?"); 1993 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 1994 "failed: %d\n", __func__, __LINE__, error); 1995 goto out; 1996 } 1997 1998 /* - drv_config (?) 1999 * - bss_info_changed 2000 * - set_rekey_data (?) 2001 * 2002 * And now we should be passing packets. 2003 */ 2004 IMPROVE("Need that bssid setting, and the keys"); 2005 2006 bss_changed = 0; 2007 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2008 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2009 2010 out: 2011 LKPI_80211_LHW_UNLOCK(lhw); 2012 IEEE80211_LOCK(vap->iv_ic); 2013 return (error); 2014 } 2015 2016 static int 2017 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2018 { 2019 int error; 2020 2021 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 2022 if (error == 0) 2023 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 2024 return (error); 2025 } 2026 2027 static int 2028 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2029 { 2030 struct lkpi_hw *lhw; 2031 struct ieee80211_hw *hw; 2032 struct lkpi_vif *lvif; 2033 struct ieee80211_vif *vif; 2034 struct ieee80211_node *ni; 2035 struct lkpi_sta *lsta; 2036 struct ieee80211_sta *sta; 2037 struct ieee80211_prep_tx_info prep_tx_info; 2038 #if 0 2039 enum ieee80211_bss_changed bss_changed; 2040 #endif 2041 int error; 2042 2043 lhw = vap->iv_ic->ic_softc; 2044 hw = LHW_TO_HW(lhw); 2045 lvif = VAP_TO_LVIF(vap); 2046 vif = LVIF_TO_VIF(lvif); 2047 2048 LKPI_80211_LVIF_LOCK(lvif); 2049 #ifdef LINUXKPI_DEBUG_80211 2050 /* XXX-BZ KASSERT later; state going down so no action. */ 2051 if (lvif->lvif_bss == NULL) 2052 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2053 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2054 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2055 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2056 lvif->lvif_bss_synched); 2057 #endif 2058 lsta = lvif->lvif_bss; 2059 LKPI_80211_LVIF_UNLOCK(lvif); 2060 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2061 "lvif %p vap %p\n", __func__, 2062 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2063 2064 ni = lsta->ni; /* Reference held for lvif_bss. */ 2065 sta = LSTA_TO_STA(lsta); 2066 2067 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2068 2069 IEEE80211_UNLOCK(vap->iv_ic); 2070 LKPI_80211_LHW_LOCK(lhw); 2071 2072 /* flush, drop. */ 2073 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2074 2075 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2076 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2077 !lsta->in_mgd) { 2078 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2079 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2080 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2081 lsta->in_mgd = true; 2082 } 2083 2084 LKPI_80211_LHW_UNLOCK(lhw); 2085 IEEE80211_LOCK(vap->iv_ic); 2086 2087 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2088 error = lvif->iv_newstate(vap, nstate, arg); 2089 if (error != 0) { 2090 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2091 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2092 goto outni; 2093 } 2094 2095 IEEE80211_UNLOCK(vap->iv_ic); 2096 LKPI_80211_LHW_LOCK(lhw); 2097 2098 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2099 2100 /* Wake tx queues to get packet(s) out. */ 2101 lkpi_wake_tx_queues(hw, sta, true, true); 2102 2103 /* flush, no drop */ 2104 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2105 2106 /* End mgd_complete_tx. */ 2107 if (lsta->in_mgd) { 2108 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2109 prep_tx_info.success = false; 2110 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2111 lsta->in_mgd = false; 2112 } 2113 2114 #if 0 2115 /* sync_rx_queues */ 2116 lkpi_80211_mo_sync_rx_queues(hw); 2117 2118 /* sta_pre_rcu_remove */ 2119 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2120 #endif 2121 2122 /* Take the station down. */ 2123 2124 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2125 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2126 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2127 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2128 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2129 if (error != 0) { 2130 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2131 "failed: %d\n", __func__, __LINE__, error); 2132 goto out; 2133 } 2134 2135 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2136 2137 /* Update sta_state (ASSOC to AUTH). */ 2138 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2139 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2140 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2141 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2142 if (error != 0) { 2143 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2144 "failed: %d\n", __func__, __LINE__, error); 2145 goto out; 2146 } 2147 2148 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2149 2150 #if 0 2151 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2152 lkpi_disassoc(sta, vif, lhw); 2153 #endif 2154 2155 error = EALREADY; 2156 out: 2157 LKPI_80211_LHW_UNLOCK(lhw); 2158 IEEE80211_LOCK(vap->iv_ic); 2159 outni: 2160 return (error); 2161 } 2162 2163 static int 2164 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2165 { 2166 struct lkpi_hw *lhw; 2167 struct ieee80211_hw *hw; 2168 struct lkpi_vif *lvif; 2169 struct ieee80211_vif *vif; 2170 struct ieee80211_node *ni; 2171 struct lkpi_sta *lsta; 2172 struct ieee80211_sta *sta; 2173 struct ieee80211_prep_tx_info prep_tx_info; 2174 enum ieee80211_bss_changed bss_changed; 2175 int error; 2176 2177 lhw = vap->iv_ic->ic_softc; 2178 hw = LHW_TO_HW(lhw); 2179 lvif = VAP_TO_LVIF(vap); 2180 vif = LVIF_TO_VIF(lvif); 2181 2182 IEEE80211_UNLOCK(vap->iv_ic); 2183 LKPI_80211_LHW_LOCK(lhw); 2184 2185 LKPI_80211_LVIF_LOCK(lvif); 2186 #ifdef LINUXKPI_DEBUG_80211 2187 /* XXX-BZ KASSERT later; state going down so no action. */ 2188 if (lvif->lvif_bss == NULL) 2189 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2190 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2191 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2192 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2193 lvif->lvif_bss_synched); 2194 #endif 2195 lsta = lvif->lvif_bss; 2196 LKPI_80211_LVIF_UNLOCK(lvif); 2197 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2198 "lvif %p vap %p\n", __func__, 2199 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2200 2201 ni = lsta->ni; /* Reference held for lvif_bss. */ 2202 sta = LSTA_TO_STA(lsta); 2203 2204 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2205 2206 /* flush, drop. */ 2207 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2208 2209 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2210 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2211 !lsta->in_mgd) { 2212 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2213 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2214 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2215 lsta->in_mgd = true; 2216 } 2217 2218 LKPI_80211_LHW_UNLOCK(lhw); 2219 IEEE80211_LOCK(vap->iv_ic); 2220 2221 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2222 error = lvif->iv_newstate(vap, nstate, arg); 2223 if (error != 0) { 2224 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2225 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2226 goto outni; 2227 } 2228 2229 IEEE80211_UNLOCK(vap->iv_ic); 2230 LKPI_80211_LHW_LOCK(lhw); 2231 2232 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2233 2234 /* Wake tx queues to get packet(s) out. */ 2235 lkpi_wake_tx_queues(hw, sta, true, true); 2236 2237 /* flush, no drop */ 2238 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2239 2240 /* End mgd_complete_tx. */ 2241 if (lsta->in_mgd) { 2242 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2243 prep_tx_info.success = false; 2244 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2245 lsta->in_mgd = false; 2246 } 2247 2248 /* sync_rx_queues */ 2249 lkpi_80211_mo_sync_rx_queues(hw); 2250 2251 /* sta_pre_rcu_remove */ 2252 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2253 2254 /* Take the station down. */ 2255 2256 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2257 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2258 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2259 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2260 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2261 if (error != 0) { 2262 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2263 "failed: %d\n", __func__, __LINE__, error); 2264 goto out; 2265 } 2266 2267 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2268 2269 /* Update sta_state (ASSOC to AUTH). */ 2270 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2271 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2272 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2273 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2274 if (error != 0) { 2275 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2276 "failed: %d\n", __func__, __LINE__, error); 2277 goto out; 2278 } 2279 2280 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2281 2282 /* Update sta and change state (from AUTH) to NONE. */ 2283 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2284 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 2285 "AUTH: %#x\n", __func__, lsta, lsta->state)); 2286 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2287 if (error != 0) { 2288 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2289 "failed: %d\n", __func__, __LINE__, error); 2290 goto out; 2291 } 2292 2293 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2294 2295 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2296 /* 2297 * One would expect this to happen when going off AUTHORIZED. 2298 * See comment there; removes the sta from fw. 2299 */ 2300 lkpi_disassoc(sta, vif, lhw); 2301 2302 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 2303 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2304 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 2305 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 2306 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 2307 if (error != 0) { 2308 IMPROVE("do we need to undo the chan ctx?"); 2309 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 2310 "failed: %d\n", __func__, __LINE__, error); 2311 goto out; 2312 } 2313 2314 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 2315 2316 IMPROVE("Any bss_info changes to announce?"); 2317 bss_changed = 0; 2318 vif->bss_conf.qos = 0; 2319 bss_changed |= BSS_CHANGED_QOS; 2320 vif->cfg.ssid_len = 0; 2321 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 2322 bss_changed |= BSS_CHANGED_BSSID; 2323 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2324 2325 LKPI_80211_LVIF_LOCK(lvif); 2326 /* Remove ni reference for this cache of lsta. */ 2327 lvif->lvif_bss = NULL; 2328 lvif->lvif_bss_synched = false; 2329 LKPI_80211_LVIF_UNLOCK(lvif); 2330 lkpi_lsta_remove(lsta, lvif); 2331 /* 2332 * The very last release the reference on the ni for the ni/lsta on 2333 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 2334 * and potentially freed. 2335 */ 2336 ieee80211_free_node(ni); 2337 2338 /* conf_tx */ 2339 2340 /* Take the chan ctx down. */ 2341 if (vif->chanctx_conf != NULL) { 2342 struct lkpi_chanctx *lchanctx; 2343 struct ieee80211_chanctx_conf *conf; 2344 2345 conf = vif->chanctx_conf; 2346 /* Remove vif context. */ 2347 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 2348 /* NB: vif->chanctx_conf is NULL now. */ 2349 2350 /* Remove chan ctx. */ 2351 lkpi_80211_mo_remove_chanctx(hw, conf); 2352 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 2353 free(lchanctx, M_LKPI80211); 2354 } 2355 2356 error = EALREADY; 2357 out: 2358 LKPI_80211_LHW_UNLOCK(lhw); 2359 IEEE80211_LOCK(vap->iv_ic); 2360 outni: 2361 return (error); 2362 } 2363 2364 static int 2365 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2366 { 2367 2368 return (lkpi_sta_run_to_init(vap, nstate, arg)); 2369 } 2370 2371 static int 2372 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2373 { 2374 int error; 2375 2376 error = lkpi_sta_run_to_init(vap, nstate, arg); 2377 if (error != 0 && error != EALREADY) 2378 return (error); 2379 2380 /* At this point iv_bss is long a new node! */ 2381 2382 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 2383 return (error); 2384 } 2385 2386 /* -------------------------------------------------------------------------- */ 2387 2388 /* 2389 * The matches the documented state changes in net80211::sta_newstate(). 2390 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 2391 * there are "invalid" (so there is a room for failure here). 2392 */ 2393 struct fsm_state { 2394 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 2395 enum ieee80211_state ostate; 2396 enum ieee80211_state nstate; 2397 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 2398 } sta_state_fsm[] = { 2399 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 2400 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 2401 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 2402 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 2403 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 2404 2405 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2406 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2407 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 2408 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 2409 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 2410 2411 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2412 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2413 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2414 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2415 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2416 2417 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2418 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2419 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2420 2421 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2422 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2423 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2424 2425 /* Dummy at the end without handler. */ 2426 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2427 }; 2428 2429 static int 2430 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2431 { 2432 struct ieee80211com *ic; 2433 struct lkpi_hw *lhw; 2434 struct lkpi_vif *lvif; 2435 struct ieee80211_vif *vif; 2436 struct fsm_state *s; 2437 enum ieee80211_state ostate; 2438 int error; 2439 2440 ic = vap->iv_ic; 2441 IEEE80211_LOCK_ASSERT(ic); 2442 ostate = vap->iv_state; 2443 2444 #ifdef LINUXKPI_DEBUG_80211 2445 if (linuxkpi_debug_80211 & D80211_TRACE) 2446 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2447 __func__, __LINE__, vap, nstate, arg); 2448 #endif 2449 2450 if (vap->iv_opmode == IEEE80211_M_STA) { 2451 2452 lhw = ic->ic_softc; 2453 lvif = VAP_TO_LVIF(vap); 2454 vif = LVIF_TO_VIF(lvif); 2455 2456 /* No need to replicate this in most state handlers. */ 2457 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2458 lkpi_stop_hw_scan(lhw, vif); 2459 2460 s = sta_state_fsm; 2461 2462 } else { 2463 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2464 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2465 return (ENOSYS); 2466 } 2467 2468 error = 0; 2469 for (; s->handler != NULL; s++) { 2470 if (ostate == s->ostate && nstate == s->nstate) { 2471 #ifdef LINUXKPI_DEBUG_80211 2472 if (linuxkpi_debug_80211 & D80211_TRACE) 2473 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2474 " %d (%s): arg %d.\n", __func__, 2475 ostate, ieee80211_state_name[ostate], 2476 nstate, ieee80211_state_name[nstate], arg); 2477 #endif 2478 error = s->handler(vap, nstate, arg); 2479 break; 2480 } 2481 } 2482 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2483 2484 if (s->handler == NULL) { 2485 IMPROVE("turn this into a KASSERT\n"); 2486 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2487 "%d (%s) -> %d (%s)\n", __func__, 2488 ostate, ieee80211_state_name[ostate], 2489 nstate, ieee80211_state_name[nstate]); 2490 return (ENOSYS); 2491 } 2492 2493 if (error == EALREADY) { 2494 #ifdef LINUXKPI_DEBUG_80211 2495 if (linuxkpi_debug_80211 & D80211_TRACE) 2496 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2497 "%d (%s): iv_newstate already handled: %d.\n", 2498 __func__, ostate, ieee80211_state_name[ostate], 2499 nstate, ieee80211_state_name[nstate], error); 2500 #endif 2501 return (0); 2502 } 2503 2504 if (error != 0) { 2505 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2506 "%d (%s) -> %d (%s)\n", __func__, error, 2507 ostate, ieee80211_state_name[ostate], 2508 nstate, ieee80211_state_name[nstate]); 2509 return (error); 2510 } 2511 2512 #ifdef LINUXKPI_DEBUG_80211 2513 if (linuxkpi_debug_80211 & D80211_TRACE) 2514 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2515 "calling net80211 parent\n", 2516 __func__, __LINE__, vap, nstate, arg); 2517 #endif 2518 2519 return (lvif->iv_newstate(vap, nstate, arg)); 2520 } 2521 2522 /* -------------------------------------------------------------------------- */ 2523 2524 /* 2525 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2526 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2527 * new node without us knowing and thus our ni/lsta are out of sync. 2528 */ 2529 static struct ieee80211_node * 2530 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2531 { 2532 struct lkpi_vif *lvif; 2533 struct ieee80211_node *rni; 2534 2535 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2536 2537 lvif = VAP_TO_LVIF(vap); 2538 2539 LKPI_80211_LVIF_LOCK(lvif); 2540 lvif->lvif_bss_synched = false; 2541 LKPI_80211_LVIF_UNLOCK(lvif); 2542 2543 rni = lvif->iv_update_bss(vap, ni); 2544 return (rni); 2545 } 2546 2547 #ifdef LKPI_80211_WME 2548 static int 2549 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2550 { 2551 struct ieee80211com *ic; 2552 struct ieee80211_hw *hw; 2553 struct lkpi_vif *lvif; 2554 struct ieee80211_vif *vif; 2555 struct chanAccParams chp; 2556 struct wmeParams wmeparr[WME_NUM_AC]; 2557 struct ieee80211_tx_queue_params txqp; 2558 enum ieee80211_bss_changed changed; 2559 int error; 2560 uint16_t ac; 2561 2562 IMPROVE(); 2563 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2564 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2565 2566 if (vap == NULL) 2567 return (0); 2568 2569 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2570 return (0); 2571 2572 if (lhw->ops->conf_tx == NULL) 2573 return (0); 2574 2575 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2576 lhw->update_wme = true; 2577 return (0); 2578 } 2579 lhw->update_wme = false; 2580 2581 ic = lhw->ic; 2582 ieee80211_wme_ic_getparams(ic, &chp); 2583 IEEE80211_LOCK(ic); 2584 for (ac = 0; ac < WME_NUM_AC; ac++) 2585 wmeparr[ac] = chp.cap_wmeParams[ac]; 2586 IEEE80211_UNLOCK(ic); 2587 2588 hw = LHW_TO_HW(lhw); 2589 lvif = VAP_TO_LVIF(vap); 2590 vif = LVIF_TO_VIF(lvif); 2591 2592 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2593 LKPI_80211_LHW_LOCK(lhw); 2594 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2595 struct wmeParams *wmep; 2596 2597 wmep = &wmeparr[ac]; 2598 bzero(&txqp, sizeof(txqp)); 2599 txqp.cw_min = wmep->wmep_logcwmin; 2600 txqp.cw_max = wmep->wmep_logcwmax; 2601 txqp.txop = wmep->wmep_txopLimit; 2602 txqp.aifs = wmep->wmep_aifsn; 2603 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2604 if (error != 0) 2605 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2606 __func__, ac, error); 2607 } 2608 LKPI_80211_LHW_UNLOCK(lhw); 2609 changed = BSS_CHANGED_QOS; 2610 if (!planned) 2611 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2612 2613 return (changed); 2614 } 2615 #endif 2616 2617 static int 2618 lkpi_ic_wme_update(struct ieee80211com *ic) 2619 { 2620 #ifdef LKPI_80211_WME 2621 struct ieee80211vap *vap; 2622 struct lkpi_hw *lhw; 2623 2624 IMPROVE("Use the per-VAP callback in net80211."); 2625 vap = TAILQ_FIRST(&ic->ic_vaps); 2626 if (vap == NULL) 2627 return (0); 2628 2629 lhw = ic->ic_softc; 2630 2631 lkpi_wme_update(lhw, vap, false); 2632 #endif 2633 return (0); /* unused */ 2634 } 2635 2636 static struct ieee80211vap * 2637 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2638 int unit, enum ieee80211_opmode opmode, int flags, 2639 const uint8_t bssid[IEEE80211_ADDR_LEN], 2640 const uint8_t mac[IEEE80211_ADDR_LEN]) 2641 { 2642 struct lkpi_hw *lhw; 2643 struct ieee80211_hw *hw; 2644 struct lkpi_vif *lvif; 2645 struct ieee80211vap *vap; 2646 struct ieee80211_vif *vif; 2647 struct ieee80211_tx_queue_params txqp; 2648 enum ieee80211_bss_changed changed; 2649 size_t len; 2650 int error, i; 2651 uint16_t ac; 2652 2653 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2654 return (NULL); 2655 2656 lhw = ic->ic_softc; 2657 hw = LHW_TO_HW(lhw); 2658 2659 len = sizeof(*lvif); 2660 len += hw->vif_data_size; /* vif->drv_priv */ 2661 2662 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2663 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2664 TAILQ_INIT(&lvif->lsta_head); 2665 lvif->lvif_bss = NULL; 2666 lvif->lvif_bss_synched = false; 2667 vap = LVIF_TO_VAP(lvif); 2668 2669 vif = LVIF_TO_VIF(lvif); 2670 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2671 vif->p2p = false; 2672 vif->probe_req_reg = false; 2673 vif->type = lkpi_opmode_to_vif_type(opmode); 2674 lvif->wdev.iftype = vif->type; 2675 /* Need to fill in other fields as well. */ 2676 IMPROVE(); 2677 2678 /* XXX-BZ hardcoded for now! */ 2679 #if 1 2680 vif->chanctx_conf = NULL; 2681 vif->bss_conf.vif = vif; 2682 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2683 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2684 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2685 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2686 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2687 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2688 vif->bss_conf.qos = false; 2689 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2690 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2691 vif->cfg.aid = 0; 2692 vif->cfg.assoc = false; 2693 vif->cfg.idle = true; 2694 vif->cfg.ps = false; 2695 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2696 /* 2697 * We need to initialize it to something as the bss_info_changed call 2698 * will try to copy from it in iwlwifi and NULL is a panic. 2699 * We will set the proper one in scan_to_auth() before being assoc. 2700 */ 2701 vif->bss_conf.bssid = ieee80211broadcastaddr; 2702 #endif 2703 #if 0 2704 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2705 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2706 vif->bss_conf.beacon_int = ic->ic_bintval; 2707 /* iwlwifi bug. */ 2708 if (vif->bss_conf.beacon_int < 16) 2709 vif->bss_conf.beacon_int = 16; 2710 #endif 2711 2712 /* Link Config */ 2713 vif->link_conf[0] = &vif->bss_conf; 2714 for (i = 0; i < nitems(vif->link_conf); i++) { 2715 IMPROVE("more than 1 link one day"); 2716 } 2717 2718 /* Setup queue defaults; driver may override in (*add_interface). */ 2719 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2720 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2721 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2722 else if (hw->queues >= IEEE80211_NUM_ACS) 2723 vif->hw_queue[i] = i; 2724 else 2725 vif->hw_queue[i] = 0; 2726 2727 /* Initialize the queue to running. Stopped? */ 2728 lvif->hw_queue_stopped[i] = false; 2729 } 2730 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2731 2732 IMPROVE(); 2733 2734 error = lkpi_80211_mo_start(hw); 2735 if (error != 0) { 2736 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2737 mtx_destroy(&lvif->mtx); 2738 free(lvif, M_80211_VAP); 2739 return (NULL); 2740 } 2741 2742 error = lkpi_80211_mo_add_interface(hw, vif); 2743 if (error != 0) { 2744 IMPROVE(); /* XXX-BZ mo_stop()? */ 2745 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2746 mtx_destroy(&lvif->mtx); 2747 free(lvif, M_80211_VAP); 2748 return (NULL); 2749 } 2750 2751 LKPI_80211_LHW_LVIF_LOCK(lhw); 2752 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2753 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2754 2755 /* Set bss_info. */ 2756 changed = 0; 2757 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2758 2759 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2760 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2761 LKPI_80211_LHW_LOCK(lhw); 2762 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2763 2764 bzero(&txqp, sizeof(txqp)); 2765 txqp.cw_min = 15; 2766 txqp.cw_max = 1023; 2767 txqp.txop = 0; 2768 txqp.aifs = 2; 2769 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2770 if (error != 0) 2771 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2772 __func__, ac, error); 2773 } 2774 LKPI_80211_LHW_UNLOCK(lhw); 2775 changed = BSS_CHANGED_QOS; 2776 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2777 2778 /* Force MC init. */ 2779 lkpi_update_mcast_filter(ic, true); 2780 2781 IMPROVE(); 2782 2783 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2784 2785 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2786 lvif->iv_newstate = vap->iv_newstate; 2787 vap->iv_newstate = lkpi_iv_newstate; 2788 lvif->iv_update_bss = vap->iv_update_bss; 2789 vap->iv_update_bss = lkpi_iv_update_bss; 2790 2791 /* Key management. */ 2792 if (lhw->ops->set_key != NULL) { 2793 #ifdef LKPI_80211_HW_CRYPTO 2794 vap->iv_key_set = lkpi_iv_key_set; 2795 vap->iv_key_delete = lkpi_iv_key_delete; 2796 #endif 2797 } 2798 2799 #ifdef LKPI_80211_HT 2800 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 2801 #endif 2802 2803 ieee80211_ratectl_init(vap); 2804 2805 /* Complete setup. */ 2806 ieee80211_vap_attach(vap, ieee80211_media_change, 2807 ieee80211_media_status, mac); 2808 2809 if (hw->max_listen_interval == 0) 2810 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2811 hw->conf.listen_interval = hw->max_listen_interval; 2812 ic->ic_set_channel(ic); 2813 2814 /* XXX-BZ do we need to be able to update these? */ 2815 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2816 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2817 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2818 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2819 /* any others? */ 2820 IMPROVE(); 2821 2822 return (vap); 2823 } 2824 2825 void 2826 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2827 { 2828 2829 wiphy_unregister(hw->wiphy); 2830 linuxkpi_ieee80211_ifdetach(hw); 2831 2832 IMPROVE(); 2833 } 2834 2835 void 2836 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2837 { 2838 2839 TODO(); 2840 } 2841 2842 static void 2843 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2844 { 2845 struct ieee80211com *ic; 2846 struct lkpi_hw *lhw; 2847 struct ieee80211_hw *hw; 2848 struct lkpi_vif *lvif; 2849 struct ieee80211_vif *vif; 2850 2851 lvif = VAP_TO_LVIF(vap); 2852 vif = LVIF_TO_VIF(lvif); 2853 ic = vap->iv_ic; 2854 lhw = ic->ic_softc; 2855 hw = LHW_TO_HW(lhw); 2856 2857 LKPI_80211_LHW_LVIF_LOCK(lhw); 2858 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2859 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2860 2861 ieee80211_ratectl_deinit(vap); 2862 ieee80211_vap_detach(vap); 2863 2864 IMPROVE("clear up other bits in this state"); 2865 2866 lkpi_80211_mo_remove_interface(hw, vif); 2867 2868 /* Single VAP, so we can do this here. */ 2869 lkpi_80211_mo_stop(hw); 2870 2871 mtx_destroy(&lvif->mtx); 2872 free(lvif, M_80211_VAP); 2873 } 2874 2875 static void 2876 lkpi_ic_update_mcast(struct ieee80211com *ic) 2877 { 2878 2879 lkpi_update_mcast_filter(ic, false); 2880 TRACEOK(); 2881 } 2882 2883 static void 2884 lkpi_ic_update_promisc(struct ieee80211com *ic) 2885 { 2886 2887 UNIMPLEMENTED; 2888 } 2889 2890 static void 2891 lkpi_ic_update_chw(struct ieee80211com *ic) 2892 { 2893 2894 UNIMPLEMENTED; 2895 } 2896 2897 /* Start / stop device. */ 2898 static void 2899 lkpi_ic_parent(struct ieee80211com *ic) 2900 { 2901 struct lkpi_hw *lhw; 2902 #ifdef HW_START_STOP 2903 struct ieee80211_hw *hw; 2904 int error; 2905 #endif 2906 bool start_all; 2907 2908 IMPROVE(); 2909 2910 lhw = ic->ic_softc; 2911 #ifdef HW_START_STOP 2912 hw = LHW_TO_HW(lhw); 2913 #endif 2914 start_all = false; 2915 2916 /* IEEE80211_UNLOCK(ic); */ 2917 LKPI_80211_LHW_LOCK(lhw); 2918 if (ic->ic_nrunning > 0) { 2919 #ifdef HW_START_STOP 2920 error = lkpi_80211_mo_start(hw); 2921 if (error == 0) 2922 #endif 2923 start_all = true; 2924 } else { 2925 #ifdef HW_START_STOP 2926 lkpi_80211_mo_stop(hw); 2927 #endif 2928 } 2929 LKPI_80211_LHW_UNLOCK(lhw); 2930 /* IEEE80211_LOCK(ic); */ 2931 2932 if (start_all) 2933 ieee80211_start_all(ic); 2934 } 2935 2936 bool 2937 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2938 size_t ie_ids_len) 2939 { 2940 int i; 2941 2942 for (i = 0; i < ie_ids_len; i++) { 2943 if (ie == *ie_ids) 2944 return (true); 2945 } 2946 2947 return (false); 2948 } 2949 2950 /* Return true if skipped; false if error. */ 2951 bool 2952 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2953 { 2954 size_t x; 2955 uint8_t l; 2956 2957 x = *xp; 2958 2959 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2960 __func__, x, ies_len, ies)); 2961 l = ies[x + 1]; 2962 x += 2 + l; 2963 2964 if (x > ies_len) 2965 return (false); 2966 2967 *xp = x; 2968 return (true); 2969 } 2970 2971 static uint8_t * 2972 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2973 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2974 { 2975 struct ieee80211_supported_band *supband; 2976 struct linuxkpi_ieee80211_channel *channels; 2977 struct ieee80211com *ic; 2978 const struct ieee80211_channel *chan; 2979 const struct ieee80211_rateset *rs; 2980 uint8_t *pb; 2981 int band, i; 2982 2983 ic = vap->iv_ic; 2984 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2985 if ((band_mask & (1 << band)) == 0) 2986 continue; 2987 2988 supband = hw->wiphy->bands[band]; 2989 /* 2990 * This should not happen; 2991 * band_mask is a bitmask of valid bands to scan on. 2992 */ 2993 if (supband == NULL || supband->n_channels == 0) 2994 continue; 2995 2996 /* Find a first channel to get the mode and rates from. */ 2997 channels = supband->channels; 2998 chan = NULL; 2999 for (i = 0; i < supband->n_channels; i++) { 3000 3001 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3002 continue; 3003 3004 chan = ieee80211_find_channel(ic, 3005 channels[i].center_freq, 0); 3006 if (chan != NULL) 3007 break; 3008 } 3009 3010 /* This really should not happen. */ 3011 if (chan == NULL) 3012 continue; 3013 3014 pb = p; 3015 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 3016 p = ieee80211_add_rates(p, rs); 3017 p = ieee80211_add_xrates(p, rs); 3018 3019 #if defined(LKPI_80211_HT) 3020 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 3021 struct ieee80211_channel *c; 3022 3023 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3024 vap->iv_flags_ht); 3025 p = ieee80211_add_htcap_ch(p, vap, c); 3026 } 3027 #endif 3028 #if defined(LKPI_80211_VHT) 3029 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 3030 struct ieee80211_channel *c; 3031 3032 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3033 vap->iv_flags_ht); 3034 c = ieee80211_vht_adjust_channel(ic, c, 3035 vap->iv_vht_flags); 3036 p = ieee80211_add_vhtcap_ch(p, vap, c); 3037 } 3038 #endif 3039 3040 scan_ies->ies[band] = pb; 3041 scan_ies->len[band] = p - pb; 3042 } 3043 3044 /* Add common_ies */ 3045 pb = p; 3046 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3047 vap->iv_wpa_ie != NULL) { 3048 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 3049 p += 2 + vap->iv_wpa_ie[1]; 3050 } 3051 if (vap->iv_appie_probereq != NULL) { 3052 memcpy(p, vap->iv_appie_probereq->ie_data, 3053 vap->iv_appie_probereq->ie_len); 3054 p += vap->iv_appie_probereq->ie_len; 3055 } 3056 scan_ies->common_ies = pb; 3057 scan_ies->common_ie_len = p - pb; 3058 3059 return (p); 3060 } 3061 3062 static void 3063 lkpi_ic_scan_start(struct ieee80211com *ic) 3064 { 3065 struct lkpi_hw *lhw; 3066 struct ieee80211_hw *hw; 3067 struct lkpi_vif *lvif; 3068 struct ieee80211_vif *vif; 3069 struct ieee80211_scan_state *ss; 3070 struct ieee80211vap *vap; 3071 int error; 3072 bool is_hw_scan; 3073 3074 lhw = ic->ic_softc; 3075 LKPI_80211_LHW_SCAN_LOCK(lhw); 3076 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3077 /* A scan is still running. */ 3078 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3079 return; 3080 } 3081 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3082 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3083 3084 ss = ic->ic_scan; 3085 vap = ss->ss_vap; 3086 if (vap->iv_state != IEEE80211_S_SCAN) { 3087 IMPROVE("We need to be able to scan if not in S_SCAN"); 3088 return; 3089 } 3090 3091 hw = LHW_TO_HW(lhw); 3092 if (!is_hw_scan) { 3093 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 3094 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3095 sw_scan: 3096 lvif = VAP_TO_LVIF(vap); 3097 vif = LVIF_TO_VIF(lvif); 3098 3099 if (vap->iv_state == IEEE80211_S_SCAN) 3100 lkpi_hw_conf_idle(hw, false); 3101 3102 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 3103 /* net80211::scan_start() handled PS for us. */ 3104 IMPROVE(); 3105 /* XXX Also means it is too late to flush queues? 3106 * need to check iv_sta_ps or overload? */ 3107 /* XXX want to adjust ss end time/ maxdwell? */ 3108 3109 } else { 3110 struct ieee80211_channel *c; 3111 struct ieee80211_scan_request *hw_req; 3112 struct linuxkpi_ieee80211_channel *lc, **cpp; 3113 struct cfg80211_ssid *ssids; 3114 struct cfg80211_scan_6ghz_params *s6gp; 3115 size_t chan_len, nchan, ssids_len, s6ghzlen; 3116 int band, i, ssid_count, common_ie_len; 3117 uint32_t band_mask; 3118 uint8_t *ie, *ieend; 3119 bool running; 3120 3121 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 3122 ssids_len = ssid_count * sizeof(*ssids); 3123 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 3124 3125 band_mask = 0; 3126 nchan = 0; 3127 for (i = ss->ss_next; i < ss->ss_last; i++) { 3128 nchan++; 3129 band = lkpi_net80211_chan_to_nl80211_band( 3130 ss->ss_chans[ss->ss_next + i]); 3131 band_mask |= (1 << band); 3132 } 3133 3134 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 3135 IMPROVE("individual band scans not yet supported, only scanning first band"); 3136 /* In theory net80211 should drive this. */ 3137 /* Probably we need to add local logic for now; 3138 * need to deal with scan_complete 3139 * and cancel_scan and keep local state. 3140 * Also cut the nchan down above. 3141 */ 3142 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 3143 } 3144 3145 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 3146 3147 common_ie_len = 0; 3148 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3149 vap->iv_wpa_ie != NULL) 3150 common_ie_len += vap->iv_wpa_ie[1]; 3151 if (vap->iv_appie_probereq != NULL) 3152 common_ie_len += vap->iv_appie_probereq->ie_len; 3153 3154 /* We would love to check this at an earlier stage... */ 3155 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 3156 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 3157 "wiphy->max_scan_ie_len %d\n", __func__, 3158 common_ie_len, hw->wiphy->max_scan_ie_len); 3159 } 3160 3161 hw_req = malloc(sizeof(*hw_req) + ssids_len + 3162 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 3163 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 3164 3165 hw_req->req.flags = 0; /* XXX ??? */ 3166 /* hw_req->req.wdev */ 3167 hw_req->req.wiphy = hw->wiphy; 3168 hw_req->req.no_cck = false; /* XXX */ 3169 #if 0 3170 /* This seems to pessimise default scanning behaviour. */ 3171 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 3172 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 3173 #endif 3174 #ifdef __notyet__ 3175 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 3176 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 3177 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 3178 #endif 3179 eth_broadcast_addr(hw_req->req.bssid); 3180 3181 hw_req->req.n_channels = nchan; 3182 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 3183 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 3184 for (i = 0; i < nchan; i++) { 3185 *(cpp + i) = 3186 (struct linuxkpi_ieee80211_channel *)(lc + i); 3187 } 3188 for (i = 0; i < nchan; i++) { 3189 c = ss->ss_chans[ss->ss_next + i]; 3190 3191 lc->hw_value = c->ic_ieee; 3192 lc->center_freq = c->ic_freq; /* XXX */ 3193 /* lc->flags */ 3194 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 3195 lc->max_power = c->ic_maxpower; 3196 /* lc-> ... */ 3197 lc++; 3198 } 3199 3200 hw_req->req.n_ssids = ssid_count; 3201 if (hw_req->req.n_ssids > 0) { 3202 ssids = (struct cfg80211_ssid *)lc; 3203 hw_req->req.ssids = ssids; 3204 for (i = 0; i < ssid_count; i++) { 3205 ssids->ssid_len = ss->ss_ssid[i].len; 3206 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 3207 ss->ss_ssid[i].len); 3208 ssids++; 3209 } 3210 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 3211 } else { 3212 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 3213 } 3214 3215 /* 6GHz one day. */ 3216 hw_req->req.n_6ghz_params = 0; 3217 hw_req->req.scan_6ghz_params = NULL; 3218 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 3219 /* s6gp->... */ 3220 3221 ie = ieend = (uint8_t *)s6gp; 3222 /* Copy per-band IEs, copy common IEs */ 3223 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 3224 hw_req->req.ie = ie; 3225 hw_req->req.ie_len = ieend - ie; 3226 3227 lvif = VAP_TO_LVIF(vap); 3228 vif = LVIF_TO_VIF(lvif); 3229 3230 LKPI_80211_LHW_SCAN_LOCK(lhw); 3231 /* Re-check under lock. */ 3232 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 3233 if (!running) { 3234 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 3235 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 3236 3237 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 3238 lhw->hw_req = hw_req; 3239 } 3240 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3241 if (running) { 3242 free(hw_req, M_LKPI80211); 3243 return; 3244 } 3245 3246 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 3247 if (error != 0) { 3248 ieee80211_cancel_scan(vap); 3249 3250 /* 3251 * ieee80211_scan_completed must be called in either 3252 * case of error or none. So let the free happen there 3253 * and only there. 3254 * That would be fine in theory but in practice drivers 3255 * behave differently: 3256 * ath10k does not return hw_scan until after scan_complete 3257 * and can then still return an error. 3258 * rtw88 can return 1 or -EBUSY without scan_complete 3259 * iwlwifi can return various errors before scan starts 3260 * ... 3261 * So we cannot rely on that behaviour and have to check 3262 * and balance between both code paths. 3263 */ 3264 LKPI_80211_LHW_SCAN_LOCK(lhw); 3265 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3266 free(lhw->hw_req, M_LKPI80211); 3267 lhw->hw_req = NULL; 3268 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3269 } 3270 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3271 3272 /* 3273 * XXX-SIGH magic number. 3274 * rtw88 has a magic "return 1" if offloading scan is 3275 * not possible. Fall back to sw scan in that case. 3276 */ 3277 if (error == 1) { 3278 LKPI_80211_LHW_SCAN_LOCK(lhw); 3279 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 3280 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3281 /* 3282 * XXX If we clear this now and later a driver 3283 * thinks it * can do a hw_scan again, we will 3284 * currently not re-enable it? 3285 */ 3286 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3287 ieee80211_start_scan(vap, 3288 IEEE80211_SCAN_ACTIVE | 3289 IEEE80211_SCAN_NOPICK | 3290 IEEE80211_SCAN_ONCE, 3291 IEEE80211_SCAN_FOREVER, 3292 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 3293 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 3294 vap->iv_des_nssid, vap->iv_des_ssid); 3295 goto sw_scan; 3296 } 3297 3298 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 3299 __func__, error); 3300 } 3301 } 3302 } 3303 3304 static void 3305 lkpi_ic_scan_end(struct ieee80211com *ic) 3306 { 3307 struct lkpi_hw *lhw; 3308 bool is_hw_scan; 3309 3310 lhw = ic->ic_softc; 3311 LKPI_80211_LHW_SCAN_LOCK(lhw); 3312 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 3313 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3314 return; 3315 } 3316 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3317 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3318 3319 if (!is_hw_scan) { 3320 struct ieee80211_scan_state *ss; 3321 struct ieee80211vap *vap; 3322 struct ieee80211_hw *hw; 3323 struct lkpi_vif *lvif; 3324 struct ieee80211_vif *vif; 3325 3326 ss = ic->ic_scan; 3327 vap = ss->ss_vap; 3328 hw = LHW_TO_HW(lhw); 3329 lvif = VAP_TO_LVIF(vap); 3330 vif = LVIF_TO_VIF(lvif); 3331 3332 lkpi_80211_mo_sw_scan_complete(hw, vif); 3333 3334 /* Send PS to stop buffering if n80211 does not for us? */ 3335 3336 if (vap->iv_state == IEEE80211_S_SCAN) 3337 lkpi_hw_conf_idle(hw, true); 3338 } 3339 } 3340 3341 static void 3342 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 3343 unsigned long maxdwell) 3344 { 3345 struct lkpi_hw *lhw; 3346 bool is_hw_scan; 3347 3348 lhw = ss->ss_ic->ic_softc; 3349 LKPI_80211_LHW_SCAN_LOCK(lhw); 3350 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3351 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3352 if (!is_hw_scan) 3353 lhw->ic_scan_curchan(ss, maxdwell); 3354 } 3355 3356 static void 3357 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 3358 { 3359 struct lkpi_hw *lhw; 3360 bool is_hw_scan; 3361 3362 lhw = ss->ss_ic->ic_softc; 3363 LKPI_80211_LHW_SCAN_LOCK(lhw); 3364 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3365 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3366 if (!is_hw_scan) 3367 lhw->ic_scan_mindwell(ss); 3368 } 3369 3370 static void 3371 lkpi_ic_set_channel(struct ieee80211com *ic) 3372 { 3373 struct lkpi_hw *lhw; 3374 struct ieee80211_hw *hw; 3375 struct ieee80211_channel *c; 3376 struct linuxkpi_ieee80211_channel *chan; 3377 int error; 3378 bool hw_scan_running; 3379 3380 lhw = ic->ic_softc; 3381 3382 /* If we do not support (*config)() save us the work. */ 3383 if (lhw->ops->config == NULL) 3384 return; 3385 3386 /* If we have a hw_scan running do not switch channels. */ 3387 LKPI_80211_LHW_SCAN_LOCK(lhw); 3388 hw_scan_running = 3389 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3390 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3391 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3392 if (hw_scan_running) 3393 return; 3394 3395 c = ic->ic_curchan; 3396 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3397 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3398 c, lhw->ops->config); 3399 return; 3400 } 3401 3402 chan = lkpi_find_lkpi80211_chan(lhw, c); 3403 if (chan == NULL) { 3404 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3405 c, chan); 3406 return; 3407 } 3408 3409 /* XXX max power for scanning? */ 3410 IMPROVE(); 3411 3412 hw = LHW_TO_HW(lhw); 3413 cfg80211_chandef_create(&hw->conf.chandef, chan, 3414 #ifdef LKPI_80211_HT 3415 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 3416 #endif 3417 NL80211_CHAN_NO_HT); 3418 3419 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3420 if (error != 0 && error != EOPNOTSUPP) { 3421 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3422 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3423 /* XXX should we unroll to the previous chandef? */ 3424 IMPROVE(); 3425 } else { 3426 /* Update radiotap channels as well. */ 3427 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3428 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3429 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3430 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3431 } 3432 3433 /* Currently PS is hard coded off! Not sure it belongs here. */ 3434 IMPROVE(); 3435 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3436 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3437 hw->conf.flags &= ~IEEE80211_CONF_PS; 3438 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3439 if (error != 0 && error != EOPNOTSUPP) 3440 ic_printf(ic, "ERROR: %s: config %#0x returned " 3441 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3442 error); 3443 } 3444 } 3445 3446 static struct ieee80211_node * 3447 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3448 const uint8_t mac[IEEE80211_ADDR_LEN]) 3449 { 3450 struct ieee80211com *ic; 3451 struct lkpi_hw *lhw; 3452 struct ieee80211_node *ni; 3453 struct ieee80211_hw *hw; 3454 struct lkpi_sta *lsta; 3455 3456 ic = vap->iv_ic; 3457 lhw = ic->ic_softc; 3458 3459 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3460 if (lhw->ic_node_alloc == NULL) 3461 return (NULL); 3462 3463 ni = lhw->ic_node_alloc(vap, mac); 3464 if (ni == NULL) 3465 return (NULL); 3466 3467 hw = LHW_TO_HW(lhw); 3468 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3469 if (lsta == NULL) { 3470 if (lhw->ic_node_free != NULL) 3471 lhw->ic_node_free(ni); 3472 return (NULL); 3473 } 3474 3475 return (ni); 3476 } 3477 3478 static int 3479 lkpi_ic_node_init(struct ieee80211_node *ni) 3480 { 3481 struct ieee80211com *ic; 3482 struct lkpi_hw *lhw; 3483 int error; 3484 3485 ic = ni->ni_ic; 3486 lhw = ic->ic_softc; 3487 3488 if (lhw->ic_node_init != NULL) { 3489 error = lhw->ic_node_init(ni); 3490 if (error != 0) 3491 return (error); 3492 } 3493 3494 /* XXX-BZ Sync other state over. */ 3495 IMPROVE(); 3496 3497 return (0); 3498 } 3499 3500 static void 3501 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3502 { 3503 struct ieee80211com *ic; 3504 struct lkpi_hw *lhw; 3505 3506 ic = ni->ni_ic; 3507 lhw = ic->ic_softc; 3508 3509 /* XXX-BZ remove from driver, ... */ 3510 IMPROVE(); 3511 3512 if (lhw->ic_node_cleanup != NULL) 3513 lhw->ic_node_cleanup(ni); 3514 } 3515 3516 static void 3517 lkpi_ic_node_free(struct ieee80211_node *ni) 3518 { 3519 struct ieee80211com *ic; 3520 struct lkpi_hw *lhw; 3521 struct lkpi_sta *lsta; 3522 3523 ic = ni->ni_ic; 3524 lhw = ic->ic_softc; 3525 lsta = ni->ni_drv_data; 3526 3527 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 3528 3529 /* 3530 * Pass in the original ni just in case of error we could check that 3531 * it is the same as lsta->ni. 3532 */ 3533 lkpi_lsta_free(lsta, ni); 3534 3535 if (lhw->ic_node_free != NULL) 3536 lhw->ic_node_free(ni); 3537 } 3538 3539 static int 3540 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3541 const struct ieee80211_bpf_params *params __unused) 3542 { 3543 struct lkpi_sta *lsta; 3544 3545 lsta = ni->ni_drv_data; 3546 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3547 if (!lsta->txq_ready) { 3548 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3549 /* 3550 * Free the mbuf (do NOT release ni ref for the m_pkthdr.rcvif! 3551 * ieee80211_raw_output() does that in case of error). 3552 */ 3553 m_free(m); 3554 return (ENETDOWN); 3555 } 3556 3557 /* Queue the packet and enqueue the task to handle it. */ 3558 mbufq_enqueue(&lsta->txq, m); 3559 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3560 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3561 3562 #ifdef LINUXKPI_DEBUG_80211 3563 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3564 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3565 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3566 mbufq_len(&lsta->txq)); 3567 #endif 3568 3569 return (0); 3570 } 3571 3572 static void 3573 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3574 { 3575 struct ieee80211_node *ni; 3576 #ifndef LKPI_80211_HW_CRYPTO 3577 struct ieee80211_frame *wh; 3578 #endif 3579 struct ieee80211_key *k; 3580 struct sk_buff *skb; 3581 struct ieee80211com *ic; 3582 struct lkpi_hw *lhw; 3583 struct ieee80211_hw *hw; 3584 struct lkpi_vif *lvif; 3585 struct ieee80211_vif *vif; 3586 struct ieee80211_channel *c; 3587 struct ieee80211_tx_control control; 3588 struct ieee80211_tx_info *info; 3589 struct ieee80211_sta *sta; 3590 struct ieee80211_hdr *hdr; 3591 struct lkpi_txq *ltxq; 3592 void *buf; 3593 uint8_t ac, tid; 3594 3595 M_ASSERTPKTHDR(m); 3596 #ifdef LINUXKPI_DEBUG_80211 3597 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3598 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3599 #endif 3600 3601 ni = lsta->ni; 3602 k = NULL; 3603 #ifndef LKPI_80211_HW_CRYPTO 3604 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3605 wh = mtod(m, struct ieee80211_frame *); 3606 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3607 /* Retrieve key for TX && do software encryption. */ 3608 k = ieee80211_crypto_encap(ni, m); 3609 if (k == NULL) { 3610 ieee80211_free_node(ni); 3611 m_freem(m); 3612 return; 3613 } 3614 } 3615 #endif 3616 3617 ic = ni->ni_ic; 3618 lhw = ic->ic_softc; 3619 hw = LHW_TO_HW(lhw); 3620 c = ni->ni_chan; 3621 3622 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3623 struct lkpi_radiotap_tx_hdr *rtap; 3624 3625 rtap = &lhw->rtap_tx; 3626 rtap->wt_flags = 0; 3627 if (k != NULL) 3628 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3629 if (m->m_flags & M_FRAG) 3630 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3631 IMPROVE(); 3632 rtap->wt_rate = 0; 3633 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3634 rtap->wt_chan_freq = htole16(c->ic_freq); 3635 rtap->wt_chan_flags = htole16(c->ic_flags); 3636 } 3637 3638 ieee80211_radiotap_tx(ni->ni_vap, m); 3639 } 3640 3641 /* 3642 * net80211 should handle hw->extra_tx_headroom. 3643 * Though for as long as we are copying we don't mind. 3644 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3645 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3646 */ 3647 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3648 if (skb == NULL) { 3649 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3650 ieee80211_free_node(ni); 3651 m_freem(m); 3652 return; 3653 } 3654 skb_reserve(skb, hw->extra_tx_headroom); 3655 3656 /* XXX-BZ we need a SKB version understanding mbuf. */ 3657 /* Save the mbuf for ieee80211_tx_complete(). */ 3658 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3659 skb->m = m; 3660 #if 0 3661 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3662 #else 3663 buf = skb_put(skb, m->m_pkthdr.len); 3664 m_copydata(m, 0, m->m_pkthdr.len, buf); 3665 #endif 3666 /* Save the ni. */ 3667 m->m_pkthdr.PH_loc.ptr = ni; 3668 3669 lvif = VAP_TO_LVIF(ni->ni_vap); 3670 vif = LVIF_TO_VIF(lvif); 3671 3672 hdr = (void *)skb->data; 3673 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3674 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3675 if (!ieee80211_is_data(hdr->frame_control)) { 3676 /* MGMT and CTRL frames go on TID 7/VO. */ 3677 skb->priority = 7; 3678 ac = IEEE80211_AC_VO; 3679 } else { 3680 /* Other non-QOS traffic goes to BE. */ 3681 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 3682 skb->priority = 0; 3683 ac = IEEE80211_AC_BE; 3684 } 3685 } else { 3686 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3687 ac = ieee80211e_up_to_ac[tid & 7]; 3688 } 3689 skb_set_queue_mapping(skb, ac); 3690 3691 info = IEEE80211_SKB_CB(skb); 3692 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3693 /* Slight delay; probably only happens on scanning so fine? */ 3694 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3695 c = ic->ic_curchan; 3696 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3697 info->hw_queue = vif->hw_queue[ac]; 3698 if (m->m_flags & M_EAPOL) 3699 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3700 info->control.vif = vif; 3701 /* XXX-BZ info->control.rates */ 3702 #ifdef __notyet__ 3703 #ifdef LKPI_80211_HT 3704 info->control.rts_cts_rate_idx= 3705 info->control.use_rts= /* RTS */ 3706 info->control.use_cts_prot= /* RTS/CTS*/ 3707 #endif 3708 #endif 3709 3710 sta = LSTA_TO_STA(lsta); 3711 #ifdef LKPI_80211_HW_CRYPTO 3712 info->control.hw_key = lsta->kc; 3713 #endif 3714 3715 IMPROVE(); 3716 3717 ltxq = NULL; 3718 if (!ieee80211_is_data_present(hdr->frame_control)) { 3719 if (vif->type == NL80211_IFTYPE_STATION && 3720 lsta->added_to_drv && 3721 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3722 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3723 } else if (lsta->added_to_drv && 3724 sta->txq[skb->priority] != NULL) { 3725 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3726 } 3727 if (ltxq == NULL) 3728 goto ops_tx; 3729 3730 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3731 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3732 3733 LKPI_80211_LTXQ_LOCK(ltxq); 3734 skb_queue_tail(<xq->skbq, skb); 3735 #ifdef LINUXKPI_DEBUG_80211 3736 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3737 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3738 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3739 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3740 __func__, __LINE__, 3741 curthread->td_tid, (unsigned int)ticks, 3742 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3743 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3744 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3745 #endif 3746 LKPI_80211_LTXQ_UNLOCK(ltxq); 3747 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3748 return; 3749 3750 ops_tx: 3751 #ifdef LINUXKPI_DEBUG_80211 3752 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3753 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3754 "TX ac %d prio %u qmap %u\n", 3755 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3756 skb, ac, skb->priority, skb->qmap); 3757 #endif 3758 memset(&control, 0, sizeof(control)); 3759 control.sta = sta; 3760 lkpi_80211_mo_tx(hw, &control, skb); 3761 } 3762 3763 static void 3764 lkpi_80211_txq_task(void *ctx, int pending) 3765 { 3766 struct lkpi_sta *lsta; 3767 struct mbufq mq; 3768 struct mbuf *m; 3769 3770 lsta = ctx; 3771 3772 #ifdef LINUXKPI_DEBUG_80211 3773 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3774 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3775 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3776 pending, mbufq_len(&lsta->txq)); 3777 #endif 3778 3779 mbufq_init(&mq, IFQ_MAXLEN); 3780 3781 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3782 /* 3783 * Do not re-check lsta->txq_ready here; we may have a pending 3784 * disassoc frame still. 3785 */ 3786 mbufq_concat(&mq, &lsta->txq); 3787 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3788 3789 m = mbufq_dequeue(&mq); 3790 while (m != NULL) { 3791 lkpi_80211_txq_tx_one(lsta, m); 3792 m = mbufq_dequeue(&mq); 3793 } 3794 } 3795 3796 static int 3797 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3798 { 3799 3800 /* XXX TODO */ 3801 IMPROVE(); 3802 3803 /* Quick and dirty cheating hack. */ 3804 struct ieee80211_node *ni; 3805 3806 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3807 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3808 } 3809 3810 #ifdef LKPI_80211_HT 3811 static int 3812 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3813 const uint8_t *frm, const uint8_t *efrm) 3814 { 3815 struct ieee80211com *ic; 3816 struct lkpi_hw *lhw; 3817 3818 ic = ni->ni_ic; 3819 lhw = ic->ic_softc; 3820 3821 IMPROVE_HT(); 3822 3823 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 3824 } 3825 3826 static int 3827 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 3828 { 3829 struct ieee80211com *ic; 3830 struct lkpi_hw *lhw; 3831 3832 ic = ni->ni_ic; 3833 lhw = ic->ic_softc; 3834 3835 IMPROVE_HT(); 3836 3837 return (lhw->ic_send_action(ni, category, action, sa)); 3838 } 3839 3840 3841 static int 3842 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3843 { 3844 struct ieee80211com *ic; 3845 struct lkpi_hw *lhw; 3846 3847 ic = ni->ni_ic; 3848 lhw = ic->ic_softc; 3849 3850 IMPROVE_HT(); 3851 3852 return (lhw->ic_ampdu_enable(ni, tap)); 3853 } 3854 3855 static int 3856 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3857 int dialogtoken, int baparamset, int batimeout) 3858 { 3859 struct ieee80211com *ic; 3860 struct lkpi_hw *lhw; 3861 3862 ic = ni->ni_ic; 3863 lhw = ic->ic_softc; 3864 3865 IMPROVE_HT(); 3866 3867 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 3868 } 3869 3870 static int 3871 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3872 int status, int baparamset, int batimeout) 3873 { 3874 struct ieee80211com *ic; 3875 struct lkpi_hw *lhw; 3876 3877 ic = ni->ni_ic; 3878 lhw = ic->ic_softc; 3879 3880 IMPROVE_HT(); 3881 3882 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 3883 } 3884 3885 static void 3886 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3887 { 3888 struct ieee80211com *ic; 3889 struct lkpi_hw *lhw; 3890 3891 ic = ni->ni_ic; 3892 lhw = ic->ic_softc; 3893 3894 IMPROVE_HT(); 3895 3896 lhw->ic_addba_stop(ni, tap); 3897 } 3898 3899 static void 3900 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3901 { 3902 struct ieee80211com *ic; 3903 struct lkpi_hw *lhw; 3904 3905 ic = ni->ni_ic; 3906 lhw = ic->ic_softc; 3907 3908 IMPROVE_HT(); 3909 3910 lhw->ic_addba_response_timeout(ni, tap); 3911 } 3912 3913 static void 3914 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3915 int status) 3916 { 3917 struct ieee80211com *ic; 3918 struct lkpi_hw *lhw; 3919 3920 ic = ni->ni_ic; 3921 lhw = ic->ic_softc; 3922 3923 IMPROVE_HT(); 3924 3925 lhw->ic_bar_response(ni, tap, status); 3926 } 3927 3928 static int 3929 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 3930 int baparamset, int batimeout, int baseqctl) 3931 { 3932 struct ieee80211com *ic; 3933 struct lkpi_hw *lhw; 3934 struct ieee80211_hw *hw; 3935 struct ieee80211vap *vap; 3936 struct lkpi_vif *lvif; 3937 struct ieee80211_vif *vif; 3938 struct lkpi_sta *lsta; 3939 struct ieee80211_sta *sta; 3940 struct ieee80211_ampdu_params params; 3941 int error; 3942 3943 ic = ni->ni_ic; 3944 lhw = ic->ic_softc; 3945 hw = LHW_TO_HW(lhw); 3946 vap = ni->ni_vap; 3947 lvif = VAP_TO_LVIF(vap); 3948 vif = LVIF_TO_VIF(lvif); 3949 lsta = ni->ni_drv_data; 3950 sta = LSTA_TO_STA(lsta); 3951 3952 params.sta = sta; 3953 params.action = IEEE80211_AMPDU_RX_START; 3954 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 3955 if (params.buf_size == 0) 3956 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 3957 else 3958 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 3959 if (params.buf_size > hw->max_rx_aggregation_subframes) 3960 params.buf_size = hw->max_rx_aggregation_subframes; 3961 params.timeout = le16toh(batimeout); 3962 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 3963 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 3964 params.amsdu = false; 3965 3966 IMPROVE_HT("Do we need to distinguish based on SUPPORTS_REORDERING_BUFFER?"); 3967 3968 /* This may call kalloc. Make sure we can sleep. */ 3969 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 3970 if (error != 0) { 3971 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 3972 __func__, error, ni, rap); 3973 return (error); 3974 } 3975 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 3976 3977 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 3978 return (error); 3979 } 3980 3981 static void 3982 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 3983 { 3984 struct ieee80211com *ic; 3985 struct lkpi_hw *lhw; 3986 struct ieee80211_hw *hw; 3987 struct ieee80211vap *vap; 3988 struct lkpi_vif *lvif; 3989 struct ieee80211_vif *vif; 3990 struct lkpi_sta *lsta; 3991 struct ieee80211_sta *sta; 3992 struct ieee80211_ampdu_params params; 3993 int error; 3994 uint8_t tid; 3995 3996 ic = ni->ni_ic; 3997 lhw = ic->ic_softc; 3998 3999 /* 4000 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 4001 * we did not START. Some drivers pass it down to firmware which will 4002 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 4003 * ieee80211_ht_node_init() amongst others which will iterate over all 4004 * tid and call ic_ampdu_rx_stop() unconditionally. 4005 * XXX net80211 should probably be more "gentle" in these cases and 4006 * track some state itself. 4007 */ 4008 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 4009 goto net80211_only; 4010 4011 hw = LHW_TO_HW(lhw); 4012 vap = ni->ni_vap; 4013 lvif = VAP_TO_LVIF(vap); 4014 vif = LVIF_TO_VIF(lvif); 4015 lsta = ni->ni_drv_data; 4016 sta = LSTA_TO_STA(lsta); 4017 4018 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 4019 for (tid = 0; tid < WME_NUM_TID; tid++) { 4020 if (&ni->ni_rx_ampdu[tid] == rap) 4021 break; 4022 } 4023 4024 params.sta = sta; 4025 params.action = IEEE80211_AMPDU_RX_STOP; 4026 params.buf_size = 0; 4027 params.timeout = 0; 4028 params.ssn = 0; 4029 params.tid = tid; 4030 params.amsdu = false; 4031 4032 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4033 if (error != 0) 4034 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4035 __func__, error, ni, rap); 4036 4037 net80211_only: 4038 lhw->ic_ampdu_rx_stop(ni, rap); 4039 } 4040 #endif 4041 4042 static void 4043 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 4044 uint8_t *bands, int *chan_flags, enum nl80211_band band) 4045 { 4046 #ifdef LKPI_80211_HT 4047 struct ieee80211_sta_ht_cap *ht_cap; 4048 4049 ht_cap = &hw->wiphy->bands[band]->ht_cap; 4050 if (!ht_cap->ht_supported) 4051 return; 4052 4053 switch (band) { 4054 case NL80211_BAND_2GHZ: 4055 setbit(bands, IEEE80211_MODE_11NG); 4056 break; 4057 case NL80211_BAND_5GHZ: 4058 setbit(bands, IEEE80211_MODE_11NA); 4059 break; 4060 default: 4061 IMPROVE("Unsupported band %d", band); 4062 return; 4063 } 4064 4065 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 4066 4067 /* 4068 * Rather than manually checking each flag and 4069 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 4070 * simply copy the 16bits. 4071 */ 4072 ic->ic_htcaps |= ht_cap->cap; 4073 4074 /* Then deal with the other flags. */ 4075 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 4076 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 4077 #ifdef __notyet__ 4078 if (ieee80211_hw_check(hw, TX_AMSDU)) 4079 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 4080 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 4081 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 4082 IEEE80211_HTC_TX_AMSDU_AMPDU); 4083 #endif 4084 4085 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 4086 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_OFF; 4087 4088 /* Only add HT40 channels if supported. */ 4089 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 4090 chan_flags != NULL) 4091 *chan_flags |= NET80211_CBW_FLAG_HT40; 4092 #endif 4093 } 4094 4095 static void 4096 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 4097 int *n, struct ieee80211_channel *c) 4098 { 4099 struct lkpi_hw *lhw; 4100 struct ieee80211_hw *hw; 4101 struct linuxkpi_ieee80211_channel *channels; 4102 uint8_t bands[IEEE80211_MODE_BYTES]; 4103 int chan_flags, error, i, nchans; 4104 4105 /* Channels */ 4106 lhw = ic->ic_softc; 4107 hw = LHW_TO_HW(lhw); 4108 4109 /* NL80211_BAND_2GHZ */ 4110 nchans = 0; 4111 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 4112 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 4113 if (nchans > 0) { 4114 memset(bands, 0, sizeof(bands)); 4115 chan_flags = 0; 4116 setbit(bands, IEEE80211_MODE_11B); 4117 /* XXX-BZ unclear how to check for 11g. */ 4118 4119 IMPROVE("the bitrates may have flags?"); 4120 setbit(bands, IEEE80211_MODE_11G); 4121 4122 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4123 NL80211_BAND_2GHZ); 4124 4125 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 4126 for (i = 0; i < nchans && *n < maxchan; i++) { 4127 uint32_t nflags = 0; 4128 int cflags = chan_flags; 4129 4130 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4131 ic_printf(ic, "%s: Skipping disabled chan " 4132 "[%u/%u/%#x]\n", __func__, 4133 channels[i].hw_value, 4134 channels[i].center_freq, channels[i].flags); 4135 continue; 4136 } 4137 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4138 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4139 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4140 nflags |= IEEE80211_CHAN_DFS; 4141 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4142 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4143 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4144 cflags &= ~NET80211_CBW_FLAG_VHT80; 4145 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 4146 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4147 cflags &= ~NET80211_CBW_FLAG_HT40; 4148 4149 error = ieee80211_add_channel_cbw(c, maxchan, n, 4150 channels[i].hw_value, channels[i].center_freq, 4151 channels[i].max_power, 4152 nflags, bands, cflags); 4153 /* net80211::ENOBUFS: *n >= maxchans */ 4154 if (error != 0 && error != ENOBUFS) 4155 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4156 "returned error %d\n", 4157 __func__, channels[i].hw_value, 4158 channels[i].center_freq, channels[i].flags, 4159 nflags, chan_flags, cflags, error); 4160 if (error != 0) 4161 break; 4162 } 4163 } 4164 4165 /* NL80211_BAND_5GHZ */ 4166 nchans = 0; 4167 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 4168 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 4169 if (nchans > 0) { 4170 memset(bands, 0, sizeof(bands)); 4171 chan_flags = 0; 4172 setbit(bands, IEEE80211_MODE_11A); 4173 4174 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4175 NL80211_BAND_5GHZ); 4176 4177 #ifdef LKPI_80211_VHT 4178 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 4179 4180 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 4181 ic->ic_vht_cap.vht_cap_info = 4182 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 4183 4184 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 4185 chan_flags |= NET80211_CBW_FLAG_VHT80; 4186 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 4187 ic->ic_vht_cap.vht_cap_info)) 4188 chan_flags |= NET80211_CBW_FLAG_VHT160; 4189 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 4190 ic->ic_vht_cap.vht_cap_info)) 4191 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 4192 } 4193 #endif 4194 4195 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 4196 for (i = 0; i < nchans && *n < maxchan; i++) { 4197 uint32_t nflags = 0; 4198 int cflags = chan_flags; 4199 4200 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4201 ic_printf(ic, "%s: Skipping disabled chan " 4202 "[%u/%u/%#x]\n", __func__, 4203 channels[i].hw_value, 4204 channels[i].center_freq, channels[i].flags); 4205 continue; 4206 } 4207 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4208 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4209 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4210 nflags |= IEEE80211_CHAN_DFS; 4211 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4212 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4213 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4214 cflags &= ~NET80211_CBW_FLAG_VHT80; 4215 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 4216 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4217 cflags &= ~NET80211_CBW_FLAG_HT40; 4218 4219 error = ieee80211_add_channel_cbw(c, maxchan, n, 4220 channels[i].hw_value, channels[i].center_freq, 4221 channels[i].max_power, 4222 nflags, bands, cflags); 4223 /* net80211::ENOBUFS: *n >= maxchans */ 4224 if (error != 0 && error != ENOBUFS) 4225 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4226 "returned error %d\n", 4227 __func__, channels[i].hw_value, 4228 channels[i].center_freq, channels[i].flags, 4229 nflags, chan_flags, cflags, error); 4230 if (error != 0) 4231 break; 4232 } 4233 } 4234 } 4235 4236 static void * 4237 lkpi_ieee80211_ifalloc(void) 4238 { 4239 struct ieee80211com *ic; 4240 4241 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 4242 if (ic == NULL) 4243 return (NULL); 4244 4245 /* Setting these happens later when we have device information. */ 4246 ic->ic_softc = NULL; 4247 ic->ic_name = "linuxkpi"; 4248 4249 return (ic); 4250 } 4251 4252 struct ieee80211_hw * 4253 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 4254 { 4255 struct ieee80211_hw *hw; 4256 struct lkpi_hw *lhw; 4257 struct wiphy *wiphy; 4258 int ac; 4259 4260 /* Get us and the driver data also allocated. */ 4261 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 4262 if (wiphy == NULL) 4263 return (NULL); 4264 4265 lhw = wiphy_priv(wiphy); 4266 lhw->ops = ops; 4267 4268 LKPI_80211_LHW_LOCK_INIT(lhw); 4269 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 4270 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 4271 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 4272 TAILQ_INIT(&lhw->lvif_head); 4273 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4274 lhw->txq_generation[ac] = 1; 4275 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 4276 } 4277 4278 /* Deferred RX path. */ 4279 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 4280 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 4281 mbufq_init(&lhw->rxq, IFQ_MAXLEN); 4282 lhw->rxq_stopped = false; 4283 4284 /* 4285 * XXX-BZ TODO make sure there is a "_null" function to all ops 4286 * not initialized. 4287 */ 4288 hw = LHW_TO_HW(lhw); 4289 hw->wiphy = wiphy; 4290 hw->conf.flags |= IEEE80211_CONF_IDLE; 4291 hw->priv = (void *)(lhw + 1); 4292 4293 /* BSD Specific. */ 4294 lhw->ic = lkpi_ieee80211_ifalloc(); 4295 if (lhw->ic == NULL) { 4296 ieee80211_free_hw(hw); 4297 return (NULL); 4298 } 4299 4300 IMPROVE(); 4301 4302 return (hw); 4303 } 4304 4305 void 4306 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 4307 { 4308 struct lkpi_hw *lhw; 4309 struct mbuf *m; 4310 4311 lhw = HW_TO_LHW(hw); 4312 free(lhw->ic, M_LKPI80211); 4313 lhw->ic = NULL; 4314 4315 /* 4316 * Drain the deferred RX path. 4317 */ 4318 LKPI_80211_LHW_RXQ_LOCK(lhw); 4319 lhw->rxq_stopped = true; 4320 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4321 4322 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 4323 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 4324 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 4325 4326 /* Flush mbufq (make sure to release ni refs!). */ 4327 m = mbufq_dequeue(&lhw->rxq); 4328 while (m != NULL) { 4329 struct m_tag *mtag; 4330 4331 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4332 if (mtag != NULL) { 4333 struct lkpi_80211_tag_rxni *rxni; 4334 4335 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4336 ieee80211_free_node(rxni->ni); 4337 } 4338 m_freem(m); 4339 m = mbufq_dequeue(&lhw->rxq); 4340 } 4341 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 4342 __func__, lhw, mbufq_len(&lhw->rxq))); 4343 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 4344 4345 /* Cleanup more of lhw here or in wiphy_free()? */ 4346 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 4347 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 4348 LKPI_80211_LHW_LOCK_DESTROY(lhw); 4349 sx_destroy(&lhw->lvif_sx); 4350 IMPROVE(); 4351 } 4352 4353 void 4354 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 4355 { 4356 struct lkpi_hw *lhw; 4357 struct ieee80211com *ic; 4358 4359 lhw = HW_TO_LHW(hw); 4360 ic = lhw->ic; 4361 4362 /* Now set a proper name before ieee80211_ifattach(). */ 4363 ic->ic_softc = lhw; 4364 ic->ic_name = name; 4365 4366 /* XXX-BZ do we also need to set wiphy name? */ 4367 } 4368 4369 struct ieee80211_hw * 4370 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 4371 { 4372 struct lkpi_hw *lhw; 4373 4374 lhw = wiphy_priv(wiphy); 4375 return (LHW_TO_HW(lhw)); 4376 } 4377 4378 static void 4379 lkpi_radiotap_attach(struct lkpi_hw *lhw) 4380 { 4381 struct ieee80211com *ic; 4382 4383 ic = lhw->ic; 4384 ieee80211_radiotap_attach(ic, 4385 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 4386 LKPI_RTAP_TX_FLAGS_PRESENT, 4387 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 4388 LKPI_RTAP_RX_FLAGS_PRESENT); 4389 } 4390 4391 int 4392 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 4393 { 4394 struct ieee80211com *ic; 4395 struct lkpi_hw *lhw; 4396 int band, i; 4397 4398 lhw = HW_TO_LHW(hw); 4399 ic = lhw->ic; 4400 4401 /* We do it this late as wiphy->dev should be set for the name. */ 4402 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 4403 if (lhw->workq == NULL) 4404 return (-EAGAIN); 4405 4406 /* XXX-BZ figure this out how they count his... */ 4407 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 4408 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4409 hw->wiphy->perm_addr); 4410 } else if (hw->wiphy->n_addresses > 0) { 4411 /* We take the first one. */ 4412 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4413 hw->wiphy->addresses[0].addr); 4414 } else { 4415 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 4416 } 4417 4418 #ifdef __not_yet__ 4419 /* See comment in lkpi_80211_txq_tx_one(). */ 4420 ic->ic_headroom = hw->extra_tx_headroom; 4421 #endif 4422 4423 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 4424 ic->ic_opmode = IEEE80211_M_STA; 4425 4426 /* Set device capabilities. */ 4427 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 4428 ic->ic_caps = 4429 IEEE80211_C_STA | 4430 IEEE80211_C_MONITOR | 4431 IEEE80211_C_WPA | /* WPA/RSN */ 4432 #ifdef LKPI_80211_WME 4433 IEEE80211_C_WME | 4434 #endif 4435 #if 0 4436 IEEE80211_C_PMGT | 4437 #endif 4438 IEEE80211_C_SHSLOT | /* short slot time supported */ 4439 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 4440 ; 4441 #if 0 4442 /* Scanning is a different kind of beast to re-work. */ 4443 ic->ic_caps |= IEEE80211_C_BGSCAN; 4444 #endif 4445 if (lhw->ops->hw_scan) { 4446 /* 4447 * Advertise full-offload scanning. 4448 * 4449 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4450 * we essentially disable hw_scan for all drivers not setting 4451 * the flag. 4452 */ 4453 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4454 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4455 } 4456 4457 /* 4458 * The wiphy variables report bitmasks of avail antennas. 4459 * (*get_antenna) get the current bitmask sets which can be 4460 * altered by (*set_antenna) for some drivers. 4461 * XXX-BZ will the count alone do us much good long-term in net80211? 4462 */ 4463 if (hw->wiphy->available_antennas_rx || 4464 hw->wiphy->available_antennas_tx) { 4465 uint32_t rxs, txs; 4466 4467 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 4468 ic->ic_rxstream = bitcount32(rxs); 4469 ic->ic_txstream = bitcount32(txs); 4470 } 4471 } 4472 4473 ic->ic_cryptocaps = 0; 4474 #ifdef LKPI_80211_HW_CRYPTO 4475 if (hw->wiphy->n_cipher_suites > 0) { 4476 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 4477 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 4478 hw->wiphy->cipher_suites[i]); 4479 } 4480 #endif 4481 4482 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 4483 ic->ic_channels); 4484 4485 ieee80211_ifattach(ic); 4486 4487 ic->ic_update_mcast = lkpi_ic_update_mcast; 4488 ic->ic_update_promisc = lkpi_ic_update_promisc; 4489 ic->ic_update_chw = lkpi_ic_update_chw; 4490 ic->ic_parent = lkpi_ic_parent; 4491 ic->ic_scan_start = lkpi_ic_scan_start; 4492 ic->ic_scan_end = lkpi_ic_scan_end; 4493 ic->ic_set_channel = lkpi_ic_set_channel; 4494 ic->ic_transmit = lkpi_ic_transmit; 4495 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 4496 ic->ic_vap_create = lkpi_ic_vap_create; 4497 ic->ic_vap_delete = lkpi_ic_vap_delete; 4498 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 4499 ic->ic_wme.wme_update = lkpi_ic_wme_update; 4500 4501 lhw->ic_scan_curchan = ic->ic_scan_curchan; 4502 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 4503 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 4504 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 4505 4506 lhw->ic_node_alloc = ic->ic_node_alloc; 4507 ic->ic_node_alloc = lkpi_ic_node_alloc; 4508 lhw->ic_node_init = ic->ic_node_init; 4509 ic->ic_node_init = lkpi_ic_node_init; 4510 lhw->ic_node_cleanup = ic->ic_node_cleanup; 4511 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 4512 lhw->ic_node_free = ic->ic_node_free; 4513 ic->ic_node_free = lkpi_ic_node_free; 4514 4515 #ifdef LKPI_80211_HT 4516 lhw->ic_recv_action = ic->ic_recv_action; 4517 ic->ic_recv_action = lkpi_ic_recv_action; 4518 lhw->ic_send_action = ic->ic_send_action; 4519 ic->ic_send_action = lkpi_ic_send_action; 4520 4521 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 4522 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 4523 4524 lhw->ic_addba_request = ic->ic_addba_request; 4525 ic->ic_addba_request = lkpi_ic_addba_request; 4526 lhw->ic_addba_response = ic->ic_addba_response; 4527 ic->ic_addba_response = lkpi_ic_addba_response; 4528 lhw->ic_addba_stop = ic->ic_addba_stop; 4529 ic->ic_addba_stop = lkpi_ic_addba_stop; 4530 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 4531 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 4532 4533 lhw->ic_bar_response = ic->ic_bar_response; 4534 ic->ic_bar_response = lkpi_ic_bar_response; 4535 4536 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 4537 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 4538 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 4539 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 4540 #endif 4541 4542 lkpi_radiotap_attach(lhw); 4543 4544 /* 4545 * Assign the first possible channel for now; seems Realtek drivers 4546 * expect one. 4547 * Also remember the amount of bands we support and the most rates 4548 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 4549 */ 4550 lhw->supbands = lhw->max_rates = 0; 4551 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4552 struct ieee80211_supported_band *supband; 4553 struct linuxkpi_ieee80211_channel *channels; 4554 4555 supband = hw->wiphy->bands[band]; 4556 if (supband == NULL || supband->n_channels == 0) 4557 continue; 4558 4559 lhw->supbands++; 4560 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 4561 4562 /* If we have a channel, we need to keep counting supbands. */ 4563 if (hw->conf.chandef.chan != NULL) 4564 continue; 4565 4566 channels = supband->channels; 4567 for (i = 0; i < supband->n_channels; i++) { 4568 4569 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4570 continue; 4571 4572 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 4573 #ifdef LKPI_80211_HT 4574 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 4575 #endif 4576 NL80211_CHAN_NO_HT); 4577 break; 4578 } 4579 } 4580 4581 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 4582 4583 /* Make sure we do not support more than net80211 is willing to take. */ 4584 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 4585 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 4586 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 4587 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 4588 } 4589 4590 /* 4591 * The maximum supported bitrates on any band + size for 4592 * DSSS Parameter Set give our per-band IE size. 4593 * SSID is the responsibility of the driver and goes on the side. 4594 * The user specified bits coming from the vap go into the 4595 * "common ies" fields. 4596 */ 4597 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 4598 if (lhw->max_rates > IEEE80211_RATE_SIZE) 4599 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 4600 4601 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 4602 /* 4603 * net80211 does not seem to support the DSSS Parameter Set but 4604 * some of the drivers insert it so calculate the extra fixed 4605 * space in. 4606 */ 4607 lhw->scan_ie_len += 2 + 1; 4608 } 4609 4610 #if defined(LKPI_80211_HT) 4611 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 4612 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 4613 #endif 4614 #if defined(LKPI_80211_VHT) 4615 if ((ic->ic_flags_ext & IEEE80211_FEXT_VHT) != 0) 4616 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 4617 #endif 4618 4619 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 4620 if (hw->wiphy->max_scan_ie_len > 0) { 4621 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 4622 goto err; 4623 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 4624 } 4625 4626 if (bootverbose) 4627 ieee80211_announce(ic); 4628 4629 return (0); 4630 err: 4631 IMPROVE("TODO FIXME CLEANUP"); 4632 return (-EAGAIN); 4633 } 4634 4635 void 4636 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 4637 { 4638 struct lkpi_hw *lhw; 4639 struct ieee80211com *ic; 4640 4641 lhw = HW_TO_LHW(hw); 4642 ic = lhw->ic; 4643 ieee80211_ifdetach(ic); 4644 } 4645 4646 void 4647 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 4648 enum ieee80211_iface_iter flags, 4649 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 4650 void *arg) 4651 { 4652 struct lkpi_hw *lhw; 4653 struct lkpi_vif *lvif; 4654 struct ieee80211_vif *vif; 4655 bool active, atomic, nin_drv; 4656 4657 lhw = HW_TO_LHW(hw); 4658 4659 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 4660 IEEE80211_IFACE_ITER_RESUME_ALL| 4661 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 4662 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 4663 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 4664 __func__, flags); 4665 } 4666 4667 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 4668 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 4669 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 4670 4671 if (atomic) 4672 LKPI_80211_LHW_LVIF_LOCK(lhw); 4673 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4674 struct ieee80211vap *vap; 4675 4676 vif = LVIF_TO_VIF(lvif); 4677 4678 /* 4679 * If we want "active" interfaces, we need to distinguish on 4680 * whether the driver knows about them or not to be able to 4681 * handle the "resume" case correctly. Skip the ones the 4682 * driver does not know about. 4683 */ 4684 if (active && !lvif->added_to_drv && 4685 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 4686 continue; 4687 4688 /* 4689 * If we shall skip interfaces not added to the driver do so 4690 * if we haven't yet. 4691 */ 4692 if (nin_drv && !lvif->added_to_drv) 4693 continue; 4694 4695 /* 4696 * Run the iterator function if we are either not asking 4697 * asking for active only or if the VAP is "running". 4698 */ 4699 /* XXX-BZ probably should have state in the lvif as well. */ 4700 vap = LVIF_TO_VAP(lvif); 4701 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 4702 iterfunc(arg, vif->addr, vif); 4703 } 4704 if (atomic) 4705 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4706 } 4707 4708 void 4709 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 4710 struct ieee80211_vif *vif, 4711 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 4712 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 4713 void *arg) 4714 { 4715 4716 UNIMPLEMENTED; 4717 } 4718 4719 void 4720 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 4721 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 4722 void *), 4723 void *arg) 4724 { 4725 struct lkpi_hw *lhw; 4726 struct lkpi_vif *lvif; 4727 struct ieee80211_vif *vif; 4728 struct lkpi_chanctx *lchanctx; 4729 4730 KASSERT(hw != NULL && iterfunc != NULL, 4731 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4732 4733 lhw = HW_TO_LHW(hw); 4734 4735 IMPROVE("lchanctx should be its own list somewhere"); 4736 4737 LKPI_80211_LHW_LVIF_LOCK(lhw); 4738 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4739 4740 vif = LVIF_TO_VIF(lvif); 4741 if (vif->chanctx_conf == NULL) 4742 continue; 4743 4744 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 4745 if (!lchanctx->added_to_drv) 4746 continue; 4747 4748 iterfunc(hw, &lchanctx->conf, arg); 4749 } 4750 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4751 } 4752 4753 void 4754 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4755 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4756 { 4757 struct lkpi_hw *lhw; 4758 struct lkpi_vif *lvif; 4759 struct lkpi_sta *lsta; 4760 struct ieee80211_sta *sta; 4761 4762 KASSERT(hw != NULL && iterfunc != NULL, 4763 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4764 4765 lhw = HW_TO_LHW(hw); 4766 4767 LKPI_80211_LHW_LVIF_LOCK(lhw); 4768 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4769 4770 LKPI_80211_LVIF_LOCK(lvif); 4771 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4772 if (!lsta->added_to_drv) 4773 continue; 4774 sta = LSTA_TO_STA(lsta); 4775 iterfunc(arg, sta); 4776 } 4777 LKPI_80211_LVIF_UNLOCK(lvif); 4778 } 4779 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4780 } 4781 4782 struct linuxkpi_ieee80211_regdomain * 4783 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4784 { 4785 struct linuxkpi_ieee80211_regdomain *regd; 4786 4787 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4788 GFP_KERNEL); 4789 return (regd); 4790 } 4791 4792 int 4793 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4794 struct linuxkpi_ieee80211_regdomain *regd) 4795 { 4796 struct lkpi_hw *lhw; 4797 struct ieee80211com *ic; 4798 struct ieee80211_regdomain *rd; 4799 4800 lhw = wiphy_priv(wiphy); 4801 ic = lhw->ic; 4802 4803 rd = &ic->ic_regdomain; 4804 if (rd->isocc[0] == '\0') { 4805 rd->isocc[0] = regd->alpha2[0]; 4806 rd->isocc[1] = regd->alpha2[1]; 4807 } 4808 4809 TODO(); 4810 /* XXX-BZ finish the rest. */ 4811 4812 return (0); 4813 } 4814 4815 void 4816 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4817 struct cfg80211_scan_info *info) 4818 { 4819 struct lkpi_hw *lhw; 4820 struct ieee80211com *ic; 4821 struct ieee80211_scan_state *ss; 4822 4823 lhw = wiphy_priv(hw->wiphy); 4824 ic = lhw->ic; 4825 ss = ic->ic_scan; 4826 4827 ieee80211_scan_done(ss->ss_vap); 4828 4829 LKPI_80211_LHW_SCAN_LOCK(lhw); 4830 free(lhw->hw_req, M_LKPI80211); 4831 lhw->hw_req = NULL; 4832 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4833 wakeup(lhw); 4834 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4835 4836 return; 4837 } 4838 4839 static void 4840 lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 4841 { 4842 struct ieee80211_node *ni; 4843 struct m_tag *mtag; 4844 int ok; 4845 4846 ni = NULL; 4847 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4848 if (mtag != NULL) { 4849 struct lkpi_80211_tag_rxni *rxni; 4850 4851 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4852 ni = rxni->ni; 4853 } 4854 4855 if (ni != NULL) { 4856 ok = ieee80211_input_mimo(ni, m); 4857 ieee80211_free_node(ni); /* Release the reference. */ 4858 if (ok < 0) 4859 m_freem(m); 4860 } else { 4861 ok = ieee80211_input_mimo_all(lhw->ic, m); 4862 /* mbuf got consumed. */ 4863 } 4864 4865 #ifdef LINUXKPI_DEBUG_80211 4866 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4867 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4868 #endif 4869 } 4870 4871 static void 4872 lkpi_80211_lhw_rxq_task(void *ctx, int pending) 4873 { 4874 struct lkpi_hw *lhw; 4875 struct mbufq mq; 4876 struct mbuf *m; 4877 4878 lhw = ctx; 4879 4880 #ifdef LINUXKPI_DEBUG_80211 4881 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4882 printf("%s:%d lhw %p pending %d mbuf_qlen %d\n", 4883 __func__, __LINE__, lhw, pending, mbufq_len(&lhw->rxq)); 4884 #endif 4885 4886 mbufq_init(&mq, IFQ_MAXLEN); 4887 4888 LKPI_80211_LHW_RXQ_LOCK(lhw); 4889 mbufq_concat(&mq, &lhw->rxq); 4890 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4891 4892 m = mbufq_dequeue(&mq); 4893 while (m != NULL) { 4894 lkpi_80211_lhw_rxq_rx_one(lhw, m); 4895 m = mbufq_dequeue(&mq); 4896 } 4897 } 4898 4899 /* For %list see comment towards the end of the function. */ 4900 void 4901 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 4902 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 4903 struct list_head *list __unused) 4904 { 4905 struct lkpi_hw *lhw; 4906 struct ieee80211com *ic; 4907 struct mbuf *m; 4908 struct skb_shared_info *shinfo; 4909 struct ieee80211_rx_status *rx_status; 4910 struct ieee80211_rx_stats rx_stats; 4911 struct ieee80211_node *ni; 4912 struct ieee80211vap *vap; 4913 struct ieee80211_hdr *hdr; 4914 struct lkpi_sta *lsta; 4915 int i, offset, ok; 4916 int8_t rssi; 4917 bool is_beacon; 4918 4919 if (skb->len < 2) { 4920 /* Need 80211 stats here. */ 4921 IMPROVE(); 4922 goto err; 4923 } 4924 4925 /* 4926 * For now do the data copy; we can later improve things. Might even 4927 * have an mbuf backing the skb data then? 4928 */ 4929 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 4930 if (m == NULL) 4931 goto err; 4932 m_copyback(m, 0, skb->tail - skb->data, skb->data); 4933 4934 shinfo = skb_shinfo(skb); 4935 offset = m->m_len; 4936 for (i = 0; i < shinfo->nr_frags; i++) { 4937 m_copyback(m, offset, shinfo->frags[i].size, 4938 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 4939 shinfo->frags[i].offset); 4940 offset += shinfo->frags[i].size; 4941 } 4942 4943 rx_status = IEEE80211_SKB_RXCB(skb); 4944 4945 hdr = (void *)skb->data; 4946 is_beacon = ieee80211_is_beacon(hdr->frame_control); 4947 4948 #ifdef LINUXKPI_DEBUG_80211 4949 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 4950 goto no_trace_beacons; 4951 4952 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4953 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 4954 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 4955 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4956 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4957 shinfo, shinfo->nr_frags, 4958 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4959 4960 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4961 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4962 4963 /* Implement a dump_rxcb() !!! */ 4964 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4965 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4966 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4967 __func__, 4968 (uintmax_t)rx_status->boottime_ns, 4969 (uintmax_t)rx_status->mactime, 4970 rx_status->device_timestamp, 4971 rx_status->flag, 4972 rx_status->freq, 4973 rx_status->bw, 4974 rx_status->encoding, 4975 rx_status->ampdu_reference, 4976 rx_status->band, 4977 rx_status->chains, 4978 rx_status->chain_signal[0], 4979 rx_status->chain_signal[1], 4980 rx_status->chain_signal[2], 4981 rx_status->chain_signal[3], 4982 rx_status->signal, 4983 rx_status->enc_flags, 4984 rx_status->he_dcm, 4985 rx_status->he_gi, 4986 rx_status->he_ru, 4987 rx_status->zero_length_psdu_type, 4988 rx_status->nss, 4989 rx_status->rate_idx); 4990 no_trace_beacons: 4991 #endif 4992 4993 memset(&rx_stats, 0, sizeof(rx_stats)); 4994 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 4995 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 4996 rx_stats.c_nf = -96; 4997 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 4998 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 4999 rssi = rx_status->signal; 5000 else 5001 rssi = rx_stats.c_nf; 5002 /* 5003 * net80211 signal strength data are in .5 dBm units relative to 5004 * the current noise floor (see comment in ieee80211_node.h). 5005 */ 5006 rssi -= rx_stats.c_nf; 5007 rx_stats.c_rssi = rssi * 2; 5008 rx_stats.r_flags |= IEEE80211_R_BAND; 5009 rx_stats.c_band = 5010 lkpi_nl80211_band_to_net80211_band(rx_status->band); 5011 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 5012 rx_stats.c_freq = rx_status->freq; 5013 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 5014 5015 /* XXX (*sta_statistics)() to get to some of that? */ 5016 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 5017 5018 lhw = HW_TO_LHW(hw); 5019 ic = lhw->ic; 5020 5021 ok = ieee80211_add_rx_params(m, &rx_stats); 5022 if (ok == 0) { 5023 m_freem(m); 5024 counter_u64_add(ic->ic_ierrors, 1); 5025 goto err; 5026 } 5027 5028 if (sta != NULL) { 5029 lsta = STA_TO_LSTA(sta); 5030 ni = ieee80211_ref_node(lsta->ni); 5031 } else { 5032 struct ieee80211_frame_min *wh; 5033 5034 wh = mtod(m, struct ieee80211_frame_min *); 5035 ni = ieee80211_find_rxnode(ic, wh); 5036 if (ni != NULL) 5037 lsta = ni->ni_drv_data; 5038 } 5039 5040 if (ni != NULL) 5041 vap = ni->ni_vap; 5042 else 5043 /* 5044 * XXX-BZ can we improve this by looking at the frame hdr 5045 * or other meta-data passed up? 5046 */ 5047 vap = TAILQ_FIRST(&ic->ic_vaps); 5048 5049 #ifdef LINUXKPI_DEBUG_80211 5050 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5051 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 5052 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 5053 ni, vap, is_beacon ? " beacon" : ""); 5054 #endif 5055 5056 if (ni != NULL && vap != NULL && is_beacon && 5057 rx_status->device_timestamp > 0 && 5058 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 5059 struct lkpi_vif *lvif; 5060 struct ieee80211_vif *vif; 5061 struct ieee80211_frame *wh; 5062 5063 wh = mtod(m, struct ieee80211_frame *); 5064 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 5065 goto skip_device_ts; 5066 5067 lvif = VAP_TO_LVIF(vap); 5068 vif = LVIF_TO_VIF(lvif); 5069 5070 IMPROVE("TIMING_BEACON_ONLY?"); 5071 /* mac80211 specific (not net80211) so keep it here. */ 5072 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 5073 /* 5074 * net80211 should take care of the other information (sync_tsf, 5075 * sync_dtim_count) as otherwise we need to parse the beacon. 5076 */ 5077 skip_device_ts: 5078 ; 5079 } 5080 5081 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 5082 ieee80211_radiotap_active_vap(vap)) { 5083 struct lkpi_radiotap_rx_hdr *rtap; 5084 5085 rtap = &lhw->rtap_rx; 5086 rtap->wr_tsft = rx_status->device_timestamp; 5087 rtap->wr_flags = 0; 5088 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 5089 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 5090 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 5091 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 5092 #if 0 /* .. or it does not given we strip it below. */ 5093 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5094 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 5095 #endif 5096 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 5097 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 5098 rtap->wr_rate = 0; 5099 IMPROVE(); 5100 /* XXX TODO status->encoding / rate_index / bw */ 5101 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 5102 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 5103 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 5104 rtap->wr_dbm_antsignal = rssi; 5105 rtap->wr_dbm_antnoise = rx_stats.c_nf; 5106 } 5107 5108 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5109 m_adj(m, -IEEE80211_CRC_LEN); 5110 5111 #if 0 5112 if (list != NULL) { 5113 /* 5114 * Normally this would be queued up and delivered by 5115 * netif_receive_skb_list(), napi_gro_receive(), or the like. 5116 * See mt76::mac80211.c as only current possible consumer. 5117 */ 5118 IMPROVE("we simply pass the packet to net80211 to deal with."); 5119 } 5120 #endif 5121 5122 /* 5123 * Attach meta-information to the mbuf for the deferred RX path. 5124 * Currently this is best-effort. Should we need to be hard, 5125 * drop the frame and goto err; 5126 */ 5127 if (ni != NULL) { 5128 struct m_tag *mtag; 5129 struct lkpi_80211_tag_rxni *rxni; 5130 5131 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 5132 sizeof(*rxni), IEEE80211_M_NOWAIT); 5133 if (mtag != NULL) { 5134 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 5135 rxni->ni = ni; /* We hold a reference. */ 5136 m_tag_prepend(m, mtag); 5137 } 5138 } 5139 5140 LKPI_80211_LHW_RXQ_LOCK(lhw); 5141 if (lhw->rxq_stopped) { 5142 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5143 m_freem(m); 5144 goto err; 5145 } 5146 5147 mbufq_enqueue(&lhw->rxq, m); 5148 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 5149 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5150 5151 IMPROVE(); 5152 5153 err: 5154 /* The skb is ours so we can free it :-) */ 5155 kfree_skb(skb); 5156 } 5157 5158 uint8_t 5159 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 5160 { 5161 const struct ieee80211_frame *wh; 5162 uint8_t tid; 5163 5164 /* Linux seems to assume this is a QOS-Data-Frame */ 5165 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 5166 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 5167 hdr->frame_control)); 5168 5169 wh = (const struct ieee80211_frame *)hdr; 5170 tid = ieee80211_gettid(wh); 5171 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 5172 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 5173 5174 return (tid); 5175 } 5176 5177 struct wiphy * 5178 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 5179 { 5180 struct lkpi_wiphy *lwiphy; 5181 5182 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 5183 if (lwiphy == NULL) 5184 return (NULL); 5185 lwiphy->ops = ops; 5186 5187 /* XXX TODO */ 5188 return (LWIPHY_TO_WIPHY(lwiphy)); 5189 } 5190 5191 void 5192 linuxkpi_wiphy_free(struct wiphy *wiphy) 5193 { 5194 struct lkpi_wiphy *lwiphy; 5195 5196 if (wiphy == NULL) 5197 return; 5198 5199 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5200 kfree(lwiphy); 5201 } 5202 5203 uint32_t 5204 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 5205 enum nl80211_band band) 5206 { 5207 5208 switch (band) { 5209 case NL80211_BAND_2GHZ: 5210 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 5211 break; 5212 case NL80211_BAND_5GHZ: 5213 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 5214 break; 5215 default: 5216 /* XXX abort, retry, error, panic? */ 5217 break; 5218 } 5219 5220 return (0); 5221 } 5222 5223 uint32_t 5224 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 5225 { 5226 5227 return (ieee80211_mhz2ieee(freq, 0)); 5228 } 5229 5230 #if 0 5231 static struct lkpi_sta * 5232 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 5233 { 5234 struct lkpi_sta *lsta, *temp; 5235 5236 LKPI_80211_LVIF_LOCK(lvif); 5237 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5238 if (lsta->ni == ni) { 5239 LKPI_80211_LVIF_UNLOCK(lvif); 5240 return (lsta); 5241 } 5242 } 5243 LKPI_80211_LVIF_UNLOCK(lvif); 5244 5245 return (NULL); 5246 } 5247 #endif 5248 5249 struct ieee80211_sta * 5250 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 5251 { 5252 struct lkpi_vif *lvif; 5253 struct lkpi_sta *lsta, *temp; 5254 struct ieee80211_sta *sta; 5255 5256 lvif = VIF_TO_LVIF(vif); 5257 5258 LKPI_80211_LVIF_LOCK(lvif); 5259 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5260 sta = LSTA_TO_STA(lsta); 5261 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 5262 LKPI_80211_LVIF_UNLOCK(lvif); 5263 return (sta); 5264 } 5265 } 5266 LKPI_80211_LVIF_UNLOCK(lvif); 5267 return (NULL); 5268 } 5269 5270 struct ieee80211_sta * 5271 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 5272 const uint8_t *addr, const uint8_t *ourvifaddr) 5273 { 5274 struct lkpi_hw *lhw; 5275 struct lkpi_vif *lvif; 5276 struct lkpi_sta *lsta; 5277 struct ieee80211_vif *vif; 5278 struct ieee80211_sta *sta; 5279 5280 lhw = wiphy_priv(hw->wiphy); 5281 sta = NULL; 5282 5283 LKPI_80211_LHW_LVIF_LOCK(lhw); 5284 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5285 5286 /* XXX-BZ check our address from the vif. */ 5287 5288 vif = LVIF_TO_VIF(lvif); 5289 if (ourvifaddr != NULL && 5290 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 5291 continue; 5292 sta = linuxkpi_ieee80211_find_sta(vif, addr); 5293 if (sta != NULL) 5294 break; 5295 } 5296 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5297 5298 if (sta != NULL) { 5299 lsta = STA_TO_LSTA(sta); 5300 if (!lsta->added_to_drv) 5301 return (NULL); 5302 } 5303 5304 return (sta); 5305 } 5306 5307 struct sk_buff * 5308 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 5309 struct ieee80211_txq *txq) 5310 { 5311 struct lkpi_txq *ltxq; 5312 struct lkpi_vif *lvif; 5313 struct sk_buff *skb; 5314 5315 skb = NULL; 5316 ltxq = TXQ_TO_LTXQ(txq); 5317 ltxq->seen_dequeue = true; 5318 5319 if (ltxq->stopped) 5320 goto stopped; 5321 5322 lvif = VIF_TO_LVIF(ltxq->txq.vif); 5323 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 5324 ltxq->stopped = true; 5325 goto stopped; 5326 } 5327 5328 IMPROVE("hw(TX_FRAG_LIST)"); 5329 5330 LKPI_80211_LTXQ_LOCK(ltxq); 5331 skb = skb_dequeue(<xq->skbq); 5332 LKPI_80211_LTXQ_UNLOCK(ltxq); 5333 5334 stopped: 5335 return (skb); 5336 } 5337 5338 void 5339 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 5340 unsigned long *frame_cnt, unsigned long *byte_cnt) 5341 { 5342 struct lkpi_txq *ltxq; 5343 struct sk_buff *skb; 5344 unsigned long fc, bc; 5345 5346 ltxq = TXQ_TO_LTXQ(txq); 5347 5348 fc = bc = 0; 5349 LKPI_80211_LTXQ_LOCK(ltxq); 5350 skb_queue_walk(<xq->skbq, skb) { 5351 fc++; 5352 bc += skb->len; 5353 } 5354 LKPI_80211_LTXQ_UNLOCK(ltxq); 5355 if (frame_cnt) 5356 *frame_cnt = fc; 5357 if (byte_cnt) 5358 *byte_cnt = bc; 5359 5360 /* Validate that this is doing the correct thing. */ 5361 /* Should we keep track on en/dequeue? */ 5362 IMPROVE(); 5363 } 5364 5365 /* 5366 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 5367 * The latter tries to derive the success status from the info flags 5368 * passed back from the driver. rawx_mit() saves the ni on the m and the 5369 * m on the skb for us to be able to give feedback to net80211. 5370 */ 5371 static void 5372 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5373 int status) 5374 { 5375 struct ieee80211_node *ni; 5376 struct mbuf *m; 5377 5378 m = skb->m; 5379 skb->m = NULL; 5380 5381 if (m != NULL) { 5382 ni = m->m_pkthdr.PH_loc.ptr; 5383 /* Status: 0 is ok, != 0 is error. */ 5384 ieee80211_tx_complete(ni, m, status); 5385 /* ni & mbuf were consumed. */ 5386 } 5387 } 5388 5389 void 5390 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5391 int status) 5392 { 5393 5394 _lkpi_ieee80211_free_txskb(hw, skb, status); 5395 kfree_skb(skb); 5396 } 5397 5398 void 5399 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 5400 struct ieee80211_tx_status *txstat) 5401 { 5402 struct sk_buff *skb; 5403 struct ieee80211_tx_info *info; 5404 struct ieee80211_ratectl_tx_status txs; 5405 struct ieee80211_node *ni; 5406 int status; 5407 5408 skb = txstat->skb; 5409 if (skb->m != NULL) { 5410 struct mbuf *m; 5411 5412 m = skb->m; 5413 ni = m->m_pkthdr.PH_loc.ptr; 5414 memset(&txs, 0, sizeof(txs)); 5415 } else { 5416 ni = NULL; 5417 } 5418 5419 info = txstat->info; 5420 if (info->flags & IEEE80211_TX_STAT_ACK) { 5421 status = 0; /* No error. */ 5422 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 5423 } else { 5424 status = 1; 5425 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 5426 } 5427 5428 if (ni != NULL) { 5429 int ridx __unused; 5430 #ifdef LINUXKPI_DEBUG_80211 5431 int old_rate; 5432 5433 old_rate = ni->ni_vap->iv_bss->ni_txrate; 5434 #endif 5435 txs.pktlen = skb->len; 5436 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 5437 if (info->status.rates[0].count > 1) { 5438 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 5439 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 5440 } 5441 #if 0 /* Unused in net80211 currently. */ 5442 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 5443 txs.final_rate = info->status.rates[0].idx; 5444 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 5445 #endif 5446 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 5447 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 5448 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 5449 } 5450 5451 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 5452 ieee80211_ratectl_tx_complete(ni, &txs); 5453 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 5454 5455 #ifdef LINUXKPI_DEBUG_80211 5456 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 5457 printf("TX-RATE: %s: old %d new %d ridx %d, " 5458 "long_retries %d\n", __func__, 5459 old_rate, ni->ni_vap->iv_bss->ni_txrate, 5460 ridx, txs.long_retries); 5461 } 5462 #endif 5463 } 5464 5465 #ifdef LINUXKPI_DEBUG_80211 5466 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5467 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 5468 "band %u hw_queue %u tx_time_est %d : " 5469 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 5470 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 5471 "tx_time %u flags %#x " 5472 "status_driver_data [ %p %p ]\n", 5473 __func__, hw, skb, status, info->flags, 5474 info->band, info->hw_queue, info->tx_time_est, 5475 info->status.rates[0].idx, info->status.rates[0].count, 5476 info->status.rates[0].flags, 5477 info->status.rates[1].idx, info->status.rates[1].count, 5478 info->status.rates[1].flags, 5479 info->status.rates[2].idx, info->status.rates[2].count, 5480 info->status.rates[2].flags, 5481 info->status.rates[3].idx, info->status.rates[3].count, 5482 info->status.rates[3].flags, 5483 info->status.ack_signal, info->status.ampdu_ack_len, 5484 info->status.ampdu_len, info->status.antenna, 5485 info->status.tx_time, info->status.flags, 5486 info->status.status_driver_data[0], 5487 info->status.status_driver_data[1]); 5488 #endif 5489 5490 if (txstat->free_list) { 5491 _lkpi_ieee80211_free_txskb(hw, skb, status); 5492 list_add_tail(&skb->list, txstat->free_list); 5493 } else { 5494 linuxkpi_ieee80211_free_txskb(hw, skb, status); 5495 } 5496 } 5497 5498 void 5499 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 5500 { 5501 struct ieee80211_tx_status status; 5502 5503 memset(&status, 0, sizeof(status)); 5504 status.info = IEEE80211_SKB_CB(skb); 5505 status.skb = skb; 5506 /* sta, n_rates, rates, free_list? */ 5507 5508 ieee80211_tx_status_ext(hw, &status); 5509 } 5510 5511 /* 5512 * This is an internal bandaid for the moment for the way we glue 5513 * skbs and mbufs together for TX. Once we have skbs backed by 5514 * mbufs this should go away. 5515 * This is a public function but kept on the private KPI (lkpi_) 5516 * and is not exposed by a header file. 5517 */ 5518 static void 5519 lkpi_ieee80211_free_skb_mbuf(void *p) 5520 { 5521 struct ieee80211_node *ni; 5522 struct mbuf *m; 5523 5524 if (p == NULL) 5525 return; 5526 5527 m = (struct mbuf *)p; 5528 M_ASSERTPKTHDR(m); 5529 5530 ni = m->m_pkthdr.PH_loc.ptr; 5531 m->m_pkthdr.PH_loc.ptr = NULL; 5532 if (ni != NULL) 5533 ieee80211_free_node(ni); 5534 m_freem(m); 5535 } 5536 5537 void 5538 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 5539 struct delayed_work *w, int delay) 5540 { 5541 struct lkpi_hw *lhw; 5542 5543 /* Need to make sure hw is in a stable (non-suspended) state. */ 5544 IMPROVE(); 5545 5546 lhw = HW_TO_LHW(hw); 5547 queue_delayed_work(lhw->workq, w, delay); 5548 } 5549 5550 void 5551 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 5552 struct work_struct *w) 5553 { 5554 struct lkpi_hw *lhw; 5555 5556 /* Need to make sure hw is in a stable (non-suspended) state. */ 5557 IMPROVE(); 5558 5559 lhw = HW_TO_LHW(hw); 5560 queue_work(lhw->workq, w); 5561 } 5562 5563 struct sk_buff * 5564 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 5565 uint8_t *ssid, size_t ssid_len, size_t tailroom) 5566 { 5567 struct sk_buff *skb; 5568 struct ieee80211_frame *wh; 5569 uint8_t *p; 5570 size_t len; 5571 5572 len = sizeof(*wh); 5573 len += 2 + ssid_len; 5574 5575 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 5576 if (skb == NULL) 5577 return (NULL); 5578 5579 skb_reserve(skb, hw->extra_tx_headroom); 5580 5581 wh = skb_put_zero(skb, sizeof(*wh)); 5582 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 5583 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 5584 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 5585 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 5586 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 5587 5588 p = skb_put(skb, 2 + ssid_len); 5589 *p++ = IEEE80211_ELEMID_SSID; 5590 *p++ = ssid_len; 5591 if (ssid_len > 0) 5592 memcpy(p, ssid, ssid_len); 5593 5594 return (skb); 5595 } 5596 5597 struct sk_buff * 5598 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 5599 struct ieee80211_vif *vif) 5600 { 5601 struct lkpi_vif *lvif; 5602 struct ieee80211vap *vap; 5603 struct sk_buff *skb; 5604 struct ieee80211_frame_pspoll *psp; 5605 uint16_t v; 5606 5607 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 5608 if (skb == NULL) 5609 return (NULL); 5610 5611 skb_reserve(skb, hw->extra_tx_headroom); 5612 5613 lvif = VIF_TO_LVIF(vif); 5614 vap = LVIF_TO_VAP(lvif); 5615 5616 psp = skb_put_zero(skb, sizeof(*psp)); 5617 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 5618 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 5619 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 5620 memcpy(&psp->i_aid, &v, sizeof(v)); 5621 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 5622 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 5623 5624 return (skb); 5625 } 5626 5627 struct sk_buff * 5628 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 5629 struct ieee80211_vif *vif, int linkid, bool qos) 5630 { 5631 struct lkpi_vif *lvif; 5632 struct ieee80211vap *vap; 5633 struct sk_buff *skb; 5634 struct ieee80211_frame *nullf; 5635 5636 IMPROVE("linkid"); 5637 5638 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 5639 if (skb == NULL) 5640 return (NULL); 5641 5642 skb_reserve(skb, hw->extra_tx_headroom); 5643 5644 lvif = VIF_TO_LVIF(vif); 5645 vap = LVIF_TO_VAP(lvif); 5646 5647 nullf = skb_put_zero(skb, sizeof(*nullf)); 5648 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 5649 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 5650 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 5651 5652 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 5653 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 5654 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 5655 5656 return (skb); 5657 } 5658 5659 struct wireless_dev * 5660 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 5661 { 5662 struct lkpi_vif *lvif; 5663 5664 lvif = VIF_TO_LVIF(vif); 5665 return (&lvif->wdev); 5666 } 5667 5668 void 5669 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 5670 { 5671 struct lkpi_vif *lvif; 5672 struct ieee80211vap *vap; 5673 enum ieee80211_state nstate; 5674 int arg; 5675 5676 lvif = VIF_TO_LVIF(vif); 5677 vap = LVIF_TO_VAP(lvif); 5678 5679 /* 5680 * Go to init; otherwise we need to elaborately check state and 5681 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 5682 * Let the statemachine handle all neccessary changes. 5683 */ 5684 nstate = IEEE80211_S_INIT; 5685 arg = 0; /* Not a valid reason. */ 5686 5687 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5688 vif, vap, ieee80211_state_name[vap->iv_state]); 5689 ieee80211_new_state(vap, nstate, arg); 5690 } 5691 5692 void 5693 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 5694 { 5695 struct lkpi_vif *lvif; 5696 struct ieee80211vap *vap; 5697 5698 lvif = VIF_TO_LVIF(vif); 5699 vap = LVIF_TO_VAP(lvif); 5700 5701 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5702 vif, vap, ieee80211_state_name[vap->iv_state]); 5703 ieee80211_beacon_miss(vap->iv_ic); 5704 } 5705 5706 /* -------------------------------------------------------------------------- */ 5707 5708 void 5709 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 5710 { 5711 struct lkpi_hw *lhw; 5712 struct lkpi_vif *lvif; 5713 struct ieee80211_vif *vif; 5714 int ac_count, ac; 5715 5716 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5717 __func__, qnum, hw->queues, hw)); 5718 5719 lhw = wiphy_priv(hw->wiphy); 5720 5721 /* See lkpi_ic_vap_create(). */ 5722 if (hw->queues >= IEEE80211_NUM_ACS) 5723 ac_count = IEEE80211_NUM_ACS; 5724 else 5725 ac_count = 1; 5726 5727 LKPI_80211_LHW_LVIF_LOCK(lhw); 5728 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5729 5730 vif = LVIF_TO_VIF(lvif); 5731 for (ac = 0; ac < ac_count; ac++) { 5732 IMPROVE_TXQ("LOCKING"); 5733 if (qnum == vif->hw_queue[ac]) { 5734 #ifdef LINUXKPI_DEBUG_80211 5735 /* 5736 * For now log this to better understand 5737 * how this is supposed to work. 5738 */ 5739 if (lvif->hw_queue_stopped[ac] && 5740 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5741 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5742 "lvif %p vif %p ac %d qnum %d already " 5743 "stopped\n", __func__, __LINE__, 5744 lhw, hw, lvif, vif, ac, qnum); 5745 #endif 5746 lvif->hw_queue_stopped[ac] = true; 5747 } 5748 } 5749 } 5750 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5751 } 5752 5753 void 5754 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 5755 { 5756 int i; 5757 5758 IMPROVE_TXQ("Locking; do we need further info?"); 5759 for (i = 0; i < hw->queues; i++) 5760 linuxkpi_ieee80211_stop_queue(hw, i); 5761 } 5762 5763 5764 static void 5765 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 5766 { 5767 struct lkpi_hw *lhw; 5768 struct lkpi_vif *lvif; 5769 struct lkpi_sta *lsta; 5770 int ac_count, ac, tid; 5771 5772 /* See lkpi_ic_vap_create(). */ 5773 if (hw->queues >= IEEE80211_NUM_ACS) 5774 ac_count = IEEE80211_NUM_ACS; 5775 else 5776 ac_count = 1; 5777 5778 lhw = wiphy_priv(hw->wiphy); 5779 5780 IMPROVE_TXQ("Locking"); 5781 LKPI_80211_LHW_LVIF_LOCK(lhw); 5782 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5783 struct ieee80211_vif *vif; 5784 5785 vif = LVIF_TO_VIF(lvif); 5786 for (ac = 0; ac < ac_count; ac++) { 5787 5788 if (hwq == vif->hw_queue[ac]) { 5789 5790 /* XXX-BZ what about software scan? */ 5791 5792 #ifdef LINUXKPI_DEBUG_80211 5793 /* 5794 * For now log this to better understand 5795 * how this is supposed to work. 5796 */ 5797 if (!lvif->hw_queue_stopped[ac] && 5798 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5799 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5800 "lvif %p vif %p ac %d hw_q not stopped\n", 5801 __func__, __LINE__, 5802 lhw, hw, lvif, vif, ac); 5803 #endif 5804 lvif->hw_queue_stopped[ac] = false; 5805 5806 LKPI_80211_LVIF_LOCK(lvif); 5807 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 5808 struct ieee80211_sta *sta; 5809 5810 sta = LSTA_TO_STA(lsta); 5811 for (tid = 0; tid < nitems(sta->txq); tid++) { 5812 struct lkpi_txq *ltxq; 5813 5814 if (sta->txq[tid] == NULL) 5815 continue; 5816 5817 if (sta->txq[tid]->ac != ac) 5818 continue; 5819 5820 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 5821 if (!ltxq->stopped) 5822 continue; 5823 5824 ltxq->stopped = false; 5825 5826 /* XXX-BZ see when this explodes with all the locking. taskq? */ 5827 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 5828 } 5829 } 5830 LKPI_80211_LVIF_UNLOCK(lvif); 5831 } 5832 } 5833 } 5834 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5835 } 5836 5837 void 5838 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 5839 { 5840 int i; 5841 5842 IMPROVE_TXQ("Is this all/enough here?"); 5843 for (i = 0; i < hw->queues; i++) 5844 lkpi_ieee80211_wake_queues(hw, i); 5845 } 5846 5847 void 5848 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 5849 { 5850 5851 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5852 __func__, qnum, hw->queues, hw)); 5853 5854 lkpi_ieee80211_wake_queues(hw, qnum); 5855 } 5856 5857 /* This is just hardware queues. */ 5858 void 5859 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 5860 { 5861 struct lkpi_hw *lhw; 5862 5863 lhw = HW_TO_LHW(hw); 5864 5865 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 5866 IMPROVE_TXQ("LOCKING"); 5867 if (++lhw->txq_generation[ac] == 0) 5868 lhw->txq_generation[ac]++; 5869 } 5870 5871 struct ieee80211_txq * 5872 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 5873 { 5874 struct lkpi_hw *lhw; 5875 struct ieee80211_txq *txq; 5876 struct lkpi_txq *ltxq; 5877 5878 lhw = HW_TO_LHW(hw); 5879 txq = NULL; 5880 5881 IMPROVE_TXQ("LOCKING"); 5882 5883 /* Check that we are scheduled. */ 5884 if (lhw->txq_generation[ac] == 0) 5885 goto out; 5886 5887 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 5888 if (ltxq == NULL) 5889 goto out; 5890 if (ltxq->txq_generation == lhw->txq_generation[ac]) 5891 goto out; 5892 5893 ltxq->txq_generation = lhw->txq_generation[ac]; 5894 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 5895 txq = <xq->txq; 5896 TAILQ_ELEM_INIT(ltxq, txq_entry); 5897 5898 out: 5899 return (txq); 5900 } 5901 5902 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 5903 struct ieee80211_txq *txq, bool withoutpkts) 5904 { 5905 struct lkpi_hw *lhw; 5906 struct lkpi_txq *ltxq; 5907 bool ltxq_empty; 5908 5909 ltxq = TXQ_TO_LTXQ(txq); 5910 5911 IMPROVE_TXQ("LOCKING"); 5912 5913 /* Only schedule if work to do or asked to anyway. */ 5914 LKPI_80211_LTXQ_LOCK(ltxq); 5915 ltxq_empty = skb_queue_empty(<xq->skbq); 5916 LKPI_80211_LTXQ_UNLOCK(ltxq); 5917 if (!withoutpkts && ltxq_empty) 5918 goto out; 5919 5920 /* Make sure we do not double-schedule. */ 5921 if (ltxq->txq_entry.tqe_next != NULL) 5922 goto out; 5923 5924 lhw = HW_TO_LHW(hw); 5925 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 5926 out: 5927 return; 5928 } 5929 5930 void 5931 linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 5932 struct ieee80211_txq *txq) 5933 { 5934 struct lkpi_hw *lhw; 5935 struct ieee80211_txq *ntxq; 5936 struct ieee80211_tx_control control; 5937 struct sk_buff *skb; 5938 5939 lhw = HW_TO_LHW(hw); 5940 5941 LKPI_80211_LHW_TXQ_LOCK(lhw); 5942 ieee80211_txq_schedule_start(hw, txq->ac); 5943 do { 5944 ntxq = ieee80211_next_txq(hw, txq->ac); 5945 if (ntxq == NULL) 5946 break; 5947 5948 memset(&control, 0, sizeof(control)); 5949 control.sta = ntxq->sta; 5950 do { 5951 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 5952 if (skb == NULL) 5953 break; 5954 lkpi_80211_mo_tx(hw, &control, skb); 5955 } while(1); 5956 5957 ieee80211_return_txq(hw, ntxq, false); 5958 } while (1); 5959 ieee80211_txq_schedule_end(hw, txq->ac); 5960 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 5961 } 5962 5963 /* -------------------------------------------------------------------------- */ 5964 5965 struct lkpi_cfg80211_bss { 5966 u_int refcnt; 5967 struct cfg80211_bss bss; 5968 }; 5969 5970 struct lkpi_cfg80211_get_bss_iter_lookup { 5971 struct wiphy *wiphy; 5972 struct linuxkpi_ieee80211_channel *chan; 5973 const uint8_t *bssid; 5974 const uint8_t *ssid; 5975 size_t ssid_len; 5976 enum ieee80211_bss_type bss_type; 5977 enum ieee80211_privacy privacy; 5978 5979 /* 5980 * Something to store a copy of the result as the net80211 scan cache 5981 * is not refoucnted so a scan entry might go away any time. 5982 */ 5983 bool match; 5984 struct cfg80211_bss *bss; 5985 }; 5986 5987 static void 5988 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 5989 { 5990 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 5991 size_t ielen; 5992 5993 lookup = arg; 5994 5995 /* Do not try to find another match. */ 5996 if (lookup->match) 5997 return; 5998 5999 /* Nothing to store result. */ 6000 if (lookup->bss == NULL) 6001 return; 6002 6003 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 6004 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 6005 /* We have no idea what to compare to as the drivers only request ANY */ 6006 return; 6007 } 6008 6009 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 6010 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 6011 /* We have no idea what to compare to as the drivers only request ANY */ 6012 return; 6013 } 6014 6015 if (lookup->chan != NULL) { 6016 struct linuxkpi_ieee80211_channel *chan; 6017 6018 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 6019 se->se_chan->ic_freq); 6020 if (chan == NULL || chan != lookup->chan) 6021 return; 6022 } 6023 6024 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 6025 return; 6026 6027 if (lookup->ssid) { 6028 if (lookup->ssid_len != se->se_ssid[1] || 6029 se->se_ssid[1] == 0) 6030 return; 6031 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 6032 return; 6033 } 6034 6035 ielen = se->se_ies.len; 6036 6037 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 6038 M_LKPI80211, M_NOWAIT | M_ZERO); 6039 if (lookup->bss->ies == NULL) 6040 return; 6041 6042 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 6043 lookup->bss->ies->len = ielen; 6044 if (ielen) 6045 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 6046 6047 lookup->match = true; 6048 } 6049 6050 struct cfg80211_bss * 6051 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 6052 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 6053 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 6054 { 6055 struct lkpi_cfg80211_bss *lbss; 6056 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 6057 struct lkpi_hw *lhw; 6058 struct ieee80211vap *vap; 6059 6060 lhw = wiphy_priv(wiphy); 6061 6062 /* Let's hope we can alloc. */ 6063 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 6064 if (lbss == NULL) { 6065 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 6066 return (NULL); 6067 } 6068 6069 lookup.wiphy = wiphy; 6070 lookup.chan = chan; 6071 lookup.bssid = bssid; 6072 lookup.ssid = ssid; 6073 lookup.ssid_len = ssid_len; 6074 lookup.bss_type = bss_type; 6075 lookup.privacy = privacy; 6076 lookup.match = false; 6077 lookup.bss = &lbss->bss; 6078 6079 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 6080 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 6081 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 6082 if (!lookup.match) { 6083 free(lbss, M_LKPI80211); 6084 return (NULL); 6085 } 6086 6087 refcount_init(&lbss->refcnt, 1); 6088 return (&lbss->bss); 6089 } 6090 6091 void 6092 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 6093 { 6094 struct lkpi_cfg80211_bss *lbss; 6095 6096 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 6097 6098 /* Free everything again on refcount ... */ 6099 if (refcount_release(&lbss->refcnt)) { 6100 free(lbss->bss.ies, M_LKPI80211); 6101 free(lbss, M_LKPI80211); 6102 } 6103 } 6104 6105 void 6106 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 6107 { 6108 struct lkpi_hw *lhw; 6109 struct ieee80211com *ic; 6110 struct ieee80211vap *vap; 6111 6112 lhw = wiphy_priv(wiphy); 6113 ic = lhw->ic; 6114 6115 /* 6116 * If we haven't called ieee80211_ifattach() yet 6117 * or there is no VAP, there are no scans to flush. 6118 */ 6119 if (ic == NULL || 6120 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 6121 return; 6122 6123 /* Should only happen on the current one? Not seen it late enough. */ 6124 IEEE80211_LOCK(ic); 6125 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 6126 ieee80211_scan_flush(vap); 6127 IEEE80211_UNLOCK(ic); 6128 } 6129 6130 /* -------------------------------------------------------------------------- */ 6131 6132 MODULE_VERSION(linuxkpi_wlan, 1); 6133 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 6134 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 6135