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/param.h> 43 #include <sys/types.h> 44 #include <sys/kernel.h> 45 #include <sys/errno.h> 46 #include <sys/malloc.h> 47 #include <sys/module.h> 48 #include <sys/mutex.h> 49 #include <sys/socket.h> 50 #include <sys/sysctl.h> 51 #include <sys/queue.h> 52 #include <sys/taskqueue.h> 53 #include <sys/libkern.h> 54 55 #include <net/if.h> 56 #include <net/if_var.h> 57 #include <net/if_media.h> 58 #include <net/ethernet.h> 59 60 #include <net80211/ieee80211_var.h> 61 #include <net80211/ieee80211_proto.h> 62 #include <net80211/ieee80211_ratectl.h> 63 #include <net80211/ieee80211_radiotap.h> 64 #include <net80211/ieee80211_vht.h> 65 66 #define LINUXKPI_NET80211 67 #include <net/mac80211.h> 68 69 #include <linux/workqueue.h> 70 #include "linux_80211.h" 71 72 #define LKPI_80211_WME 73 /* #define LKPI_80211_HW_CRYPTO */ 74 /* #define LKPI_80211_VHT */ 75 /* #define LKPI_80211_HT */ 76 #if defined(LKPI_80211_VHT) && !defined(LKPI_80211_HT) 77 #define LKPI_80211_HT 78 #endif 79 80 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 81 82 /* XXX-BZ really want this and others in queue.h */ 83 #define TAILQ_ELEM_INIT(elm, field) do { \ 84 (elm)->field.tqe_next = NULL; \ 85 (elm)->field.tqe_prev = NULL; \ 86 } while (0) 87 88 /* -------------------------------------------------------------------------- */ 89 90 /* Keep public for as long as header files are using it too. */ 91 int linuxkpi_debug_80211; 92 93 #ifdef LINUXKPI_DEBUG_80211 94 SYSCTL_DECL(_compat_linuxkpi); 95 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 96 "LinuxKPI 802.11 compatibility layer"); 97 98 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 99 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 100 101 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 102 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 103 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 104 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 105 #else 106 #define UNIMPLEMENTED do { } while (0) 107 #define TRACEOK() do { } while (0) 108 #endif 109 110 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 111 #ifndef PREP_TX_INFO_DURATION 112 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 113 #endif 114 115 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 116 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 117 118 /* IEEE 802.11-05/0257r1 */ 119 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 120 121 /* IEEE 802.11e Table 20i-UP-to-AC mappings. */ 122 static const uint8_t ieee80211e_up_to_ac[] = { 123 IEEE80211_AC_BE, 124 IEEE80211_AC_BK, 125 IEEE80211_AC_BK, 126 IEEE80211_AC_BE, 127 IEEE80211_AC_VI, 128 IEEE80211_AC_VI, 129 IEEE80211_AC_VO, 130 IEEE80211_AC_VO, 131 #if 0 132 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 133 #endif 134 }; 135 136 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 137 /* 138 * XXX TODO need a "glue layer" to link cfg80211 ops to 139 * mac80211 and to the driver or net80211. 140 * Can we pass some on 1:1? Need to compare the (*f)(). 141 */ 142 }; 143 144 #if 0 145 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 146 struct ieee80211_node *); 147 #endif 148 static void lkpi_80211_txq_task(void *, int); 149 static void lkpi_80211_lhw_rxq_task(void *, int); 150 static void lkpi_ieee80211_free_skb_mbuf(void *); 151 #ifdef LKPI_80211_WME 152 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 153 #endif 154 155 #if defined(LKPI_80211_HT) 156 static void 157 lkpi_sta_sync_ht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *ht_rx_nss) 158 { 159 struct ieee80211vap *vap; 160 uint8_t *ie; 161 struct ieee80211_ht_cap *htcap; 162 int i, rx_nss; 163 164 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) 165 return; 166 167 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && 168 IEEE80211_IS_CHAN_HT40(ni->ni_chan)) 169 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_40; 170 171 sta->deflink.ht_cap.ht_supported = true; 172 173 /* htcap->ampdu_params_info */ 174 vap = ni->ni_vap; 175 sta->deflink.ht_cap.ampdu_density = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 176 if (sta->deflink.ht_cap.ampdu_density > vap->iv_ampdu_density) 177 sta->deflink.ht_cap.ampdu_density = vap->iv_ampdu_density; 178 sta->deflink.ht_cap.ampdu_factor = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 179 if (sta->deflink.ht_cap.ampdu_factor > vap->iv_ampdu_rxmax) 180 sta->deflink.ht_cap.ampdu_factor = vap->iv_ampdu_rxmax; 181 182 ie = ni->ni_ies.htcap_ie; 183 KASSERT(ie != NULL, ("%s: HT but no htcap_ie on ni %p\n", __func__, ni)); 184 if (ie[0] == IEEE80211_ELEMID_VENDOR) 185 ie += 4; 186 ie += 2; 187 htcap = (struct ieee80211_ht_cap *)ie; 188 sta->deflink.ht_cap.cap = htcap->cap_info; 189 sta->deflink.ht_cap.mcs = htcap->mcs; 190 191 rx_nss = 0; 192 for (i = 0; i < nitems(htcap->mcs.rx_mask); i++) { 193 if (htcap->mcs.rx_mask[i]) 194 rx_nss++; 195 } 196 if (ht_rx_nss != NULL) 197 *ht_rx_nss = rx_nss; 198 199 IMPROVE("sta->wme, sta->deflink.agg.max*"); 200 } 201 #endif 202 203 #if defined(LKPI_80211_VHT) 204 static void 205 lkpi_sta_sync_vht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *vht_rx_nss) 206 { 207 208 if ((ni->ni_flags & IEEE80211_NODE_VHT) == 0) 209 return; 210 211 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 212 #ifdef __notyet__ 213 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 214 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; /* XXX? */ 215 } else 216 #endif 217 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 218 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; 219 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 220 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_80; 221 } 222 223 IMPROVE("VHT sync ni to sta"); 224 return; 225 } 226 #endif 227 228 static void 229 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 230 const char *_f, int _l) 231 { 232 233 #ifdef LINUXKPI_DEBUG_80211 234 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 235 return; 236 if (lsta == NULL) 237 return; 238 239 printf("%s:%d lsta %p ni %p sta %p\n", 240 _f, _l, lsta, ni, &lsta->sta); 241 if (ni != NULL) 242 ieee80211_dump_node(NULL, ni); 243 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 244 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 245 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 246 #endif 247 } 248 249 static void 250 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 251 { 252 253 254 LKPI_80211_LVIF_LOCK(lvif); 255 KASSERT(lsta->lsta_entry.tqe_prev != NULL, 256 ("%s: lsta %p lsta_entry.tqe_prev %p ni %p\n", __func__, 257 lsta, lsta->lsta_entry.tqe_prev, lsta->ni)); 258 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 259 LKPI_80211_LVIF_UNLOCK(lvif); 260 } 261 262 static struct lkpi_sta * 263 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 264 struct ieee80211_hw *hw, struct ieee80211_node *ni) 265 { 266 struct lkpi_sta *lsta; 267 struct lkpi_vif *lvif; 268 struct ieee80211_vif *vif; 269 struct ieee80211_sta *sta; 270 int band, i, tid; 271 int ht_rx_nss; 272 int vht_rx_nss; 273 274 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 275 M_NOWAIT | M_ZERO); 276 if (lsta == NULL) 277 return (NULL); 278 279 lsta->added_to_drv = false; 280 lsta->state = IEEE80211_STA_NOTEXIST; 281 /* 282 * Link the ni to the lsta here without taking a reference. 283 * For one we would have to take the reference in node_init() 284 * as ieee80211_alloc_node() will initialise the refcount after us. 285 * For the other a ni and an lsta are 1:1 mapped and always together 286 * from [ic_]node_alloc() to [ic_]node_free() so we are essentally 287 * using the ni references for the lsta as well despite it being 288 * two separate allocations. 289 */ 290 lsta->ni = ni; 291 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 292 ni->ni_drv_data = lsta; 293 294 lvif = VAP_TO_LVIF(vap); 295 vif = LVIF_TO_VIF(lvif); 296 sta = LSTA_TO_STA(lsta); 297 298 IEEE80211_ADDR_COPY(sta->addr, mac); 299 300 /* TXQ */ 301 for (tid = 0; tid < nitems(sta->txq); tid++) { 302 struct lkpi_txq *ltxq; 303 304 /* We are not limiting ourselves to hw.queues here. */ 305 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 306 M_LKPI80211, M_NOWAIT | M_ZERO); 307 if (ltxq == NULL) 308 goto cleanup; 309 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 310 if (tid == IEEE80211_NUM_TIDS) { 311 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 312 free(ltxq, M_LKPI80211); 313 continue; 314 } 315 IMPROVE("AP/if we support non-STA here too"); 316 ltxq->txq.ac = IEEE80211_AC_VO; 317 } else { 318 ltxq->txq.ac = ieee80211e_up_to_ac[tid & 7]; 319 } 320 ltxq->seen_dequeue = false; 321 ltxq->stopped = false; 322 ltxq->txq.vif = vif; 323 ltxq->txq.tid = tid; 324 ltxq->txq.sta = sta; 325 TAILQ_ELEM_INIT(ltxq, txq_entry); 326 skb_queue_head_init(<xq->skbq); 327 LKPI_80211_LTXQ_LOCK_INIT(ltxq); 328 sta->txq[tid] = <xq->txq; 329 } 330 331 /* Deflink information. */ 332 for (band = 0; band < NUM_NL80211_BANDS; band++) { 333 struct ieee80211_supported_band *supband; 334 335 supband = hw->wiphy->bands[band]; 336 if (supband == NULL) 337 continue; 338 339 for (i = 0; i < supband->n_bitrates; i++) { 340 341 IMPROVE("Further supband->bitrates[i]* checks?"); 342 /* or should we get them from the ni? */ 343 sta->deflink.supp_rates[band] |= BIT(i); 344 } 345 } 346 347 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 348 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_20; 349 sta->deflink.rx_nss = 0; 350 351 ht_rx_nss = 0; 352 #if defined(LKPI_80211_HT) 353 lkpi_sta_sync_ht_from_ni(sta, ni, &ht_rx_nss); 354 #endif 355 vht_rx_nss = 0; 356 #if defined(LKPI_80211_VHT) 357 lkpi_sta_sync_vht_from_ni(sta, ni, &vht_rx_nss); 358 #endif 359 360 sta->deflink.rx_nss = MAX(ht_rx_nss, sta->deflink.rx_nss); 361 sta->deflink.rx_nss = MAX(vht_rx_nss, sta->deflink.rx_nss); 362 IMPROVE("he, ... smps_mode, .."); 363 364 /* Link configuration. */ 365 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 366 sta->link[0] = &sta->deflink; 367 for (i = 1; i < nitems(sta->link); i++) { 368 IMPROVE("more links; only link[0] = deflink currently."); 369 } 370 371 /* Deferred TX path. */ 372 LKPI_80211_LSTA_TXQ_LOCK_INIT(lsta); 373 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 374 mbufq_init(&lsta->txq, IFQ_MAXLEN); 375 lsta->txq_ready = true; 376 377 return (lsta); 378 379 cleanup: 380 for (; tid >= 0; tid--) { 381 struct lkpi_txq *ltxq; 382 383 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 384 LKPI_80211_LTXQ_LOCK_DESTROY(ltxq); 385 free(sta->txq[tid], M_LKPI80211); 386 } 387 free(lsta, M_LKPI80211); 388 return (NULL); 389 } 390 391 static void 392 lkpi_lsta_free(struct lkpi_sta *lsta, struct ieee80211_node *ni) 393 { 394 struct mbuf *m; 395 396 if (lsta->added_to_drv) 397 panic("%s: Trying to free an lsta still known to firmware: " 398 "lsta %p ni %p added_to_drv %d\n", 399 __func__, lsta, ni, lsta->added_to_drv); 400 401 /* XXX-BZ free resources, ... */ 402 IMPROVE(); 403 404 /* Drain sta->txq[] */ 405 406 LKPI_80211_LSTA_TXQ_LOCK(lsta); 407 lsta->txq_ready = false; 408 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 409 410 /* Drain taskq, won't be restarted until added_to_drv is set again. */ 411 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 412 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 413 414 /* Flush mbufq (make sure to release ni refs!). */ 415 m = mbufq_dequeue(&lsta->txq); 416 while (m != NULL) { 417 struct ieee80211_node *nim; 418 419 nim = (struct ieee80211_node *)m->m_pkthdr.rcvif; 420 if (nim != NULL) 421 ieee80211_free_node(nim); 422 m_freem(m); 423 m = mbufq_dequeue(&lsta->txq); 424 } 425 KASSERT(mbufq_empty(&lsta->txq), ("%s: lsta %p has txq len %d != 0\n", 426 __func__, lsta, mbufq_len(&lsta->txq))); 427 LKPI_80211_LSTA_TXQ_LOCK_DESTROY(lsta); 428 429 /* Remove lsta from vif; that is done by the state machine. Should assert it? */ 430 431 IMPROVE("Make sure everything is cleaned up."); 432 433 /* Free lsta. */ 434 lsta->ni = NULL; 435 ni->ni_drv_data = NULL; 436 free(lsta, M_LKPI80211); 437 } 438 439 440 static enum nl80211_band 441 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 442 { 443 444 if (IEEE80211_IS_CHAN_2GHZ(c)) 445 return (NL80211_BAND_2GHZ); 446 else if (IEEE80211_IS_CHAN_5GHZ(c)) 447 return (NL80211_BAND_5GHZ); 448 #ifdef __notyet__ 449 else if () 450 return (NL80211_BAND_6GHZ); 451 else if () 452 return (NL80211_BAND_60GHZ); 453 else if (IEEE80211_IS_CHAN_GSM(c)) 454 return (NL80211_BAND_XXX); 455 #endif 456 else 457 panic("%s: unsupported band. c %p flags %#x\n", 458 __func__, c, c->ic_flags); 459 } 460 461 static uint32_t 462 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 463 { 464 465 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 466 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 467 switch (band) { 468 case NL80211_BAND_2GHZ: 469 return (IEEE80211_CHAN_2GHZ); 470 break; 471 case NL80211_BAND_5GHZ: 472 return (IEEE80211_CHAN_5GHZ); 473 break; 474 case NL80211_BAND_60GHZ: 475 break; 476 case NL80211_BAND_6GHZ: 477 break; 478 default: 479 panic("%s: unsupported band %u\n", __func__, band); 480 break; 481 } 482 483 IMPROVE(); 484 return (0x00); 485 } 486 487 #if 0 488 static enum ieee80211_ac_numbers 489 lkpi_ac_net_to_l80211(int ac) 490 { 491 492 switch (ac) { 493 case WME_AC_VO: 494 return (IEEE80211_AC_VO); 495 case WME_AC_VI: 496 return (IEEE80211_AC_VI); 497 case WME_AC_BE: 498 return (IEEE80211_AC_BE); 499 case WME_AC_BK: 500 return (IEEE80211_AC_BK); 501 default: 502 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 503 return (IEEE80211_AC_BE); 504 } 505 } 506 #endif 507 508 static enum nl80211_iftype 509 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 510 { 511 512 switch (opmode) { 513 case IEEE80211_M_IBSS: 514 return (NL80211_IFTYPE_ADHOC); 515 break; 516 case IEEE80211_M_STA: 517 return (NL80211_IFTYPE_STATION); 518 break; 519 case IEEE80211_M_WDS: 520 return (NL80211_IFTYPE_WDS); 521 break; 522 case IEEE80211_M_HOSTAP: 523 return (NL80211_IFTYPE_AP); 524 break; 525 case IEEE80211_M_MONITOR: 526 return (NL80211_IFTYPE_MONITOR); 527 break; 528 case IEEE80211_M_MBSS: 529 return (NL80211_IFTYPE_MESH_POINT); 530 break; 531 case IEEE80211_M_AHDEMO: 532 /* FALLTHROUGH */ 533 default: 534 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 535 /* FALLTHROUGH */ 536 } 537 return (NL80211_IFTYPE_UNSPECIFIED); 538 } 539 540 #ifdef LKPI_80211_HW_CRYPTO 541 static uint32_t 542 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 543 { 544 545 switch (wlan_cipher_suite) { 546 case WLAN_CIPHER_SUITE_WEP40: 547 return (IEEE80211_CRYPTO_WEP); 548 case WLAN_CIPHER_SUITE_TKIP: 549 return (IEEE80211_CRYPTO_TKIP); 550 case WLAN_CIPHER_SUITE_CCMP: 551 return (IEEE80211_CRYPTO_AES_CCM); 552 case WLAN_CIPHER_SUITE_WEP104: 553 return (IEEE80211_CRYPTO_WEP); 554 case WLAN_CIPHER_SUITE_AES_CMAC: 555 case WLAN_CIPHER_SUITE_GCMP: 556 case WLAN_CIPHER_SUITE_GCMP_256: 557 case WLAN_CIPHER_SUITE_CCMP_256: 558 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 559 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 560 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 561 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 562 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 563 break; 564 default: 565 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 566 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 567 } 568 569 return (0); 570 } 571 572 static uint32_t 573 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 574 { 575 576 switch (cipher) { 577 case IEEE80211_CIPHER_TKIP: 578 return (WLAN_CIPHER_SUITE_TKIP); 579 case IEEE80211_CIPHER_AES_CCM: 580 return (WLAN_CIPHER_SUITE_CCMP); 581 case IEEE80211_CIPHER_WEP: 582 if (keylen < 8) 583 return (WLAN_CIPHER_SUITE_WEP40); 584 else 585 return (WLAN_CIPHER_SUITE_WEP104); 586 break; 587 case IEEE80211_CIPHER_AES_OCB: 588 case IEEE80211_CIPHER_TKIPMIC: 589 case IEEE80211_CIPHER_CKIP: 590 case IEEE80211_CIPHER_NONE: 591 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 592 break; 593 default: 594 printf("%s: unknown cipher %#010x\n", __func__, cipher); 595 }; 596 return (0); 597 } 598 #endif 599 600 #ifdef __notyet__ 601 static enum ieee80211_sta_state 602 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 603 { 604 605 /* 606 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 607 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 608 */ 609 switch (state) { 610 case IEEE80211_S_INIT: 611 return (IEEE80211_STA_NOTEXIST); 612 case IEEE80211_S_SCAN: 613 return (IEEE80211_STA_NONE); 614 case IEEE80211_S_AUTH: 615 return (IEEE80211_STA_AUTH); 616 case IEEE80211_S_ASSOC: 617 return (IEEE80211_STA_ASSOC); 618 case IEEE80211_S_RUN: 619 return (IEEE80211_STA_AUTHORIZED); 620 case IEEE80211_S_CAC: 621 case IEEE80211_S_CSA: 622 case IEEE80211_S_SLEEP: 623 default: 624 UNIMPLEMENTED; 625 }; 626 627 return (IEEE80211_STA_NOTEXIST); 628 } 629 #endif 630 631 static struct linuxkpi_ieee80211_channel * 632 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 633 struct ieee80211_channel *c) 634 { 635 struct ieee80211_hw *hw; 636 struct linuxkpi_ieee80211_channel *channels; 637 enum nl80211_band band; 638 int i, nchans; 639 640 hw = LHW_TO_HW(lhw); 641 band = lkpi_net80211_chan_to_nl80211_band(c); 642 if (hw->wiphy->bands[band] == NULL) 643 return (NULL); 644 645 nchans = hw->wiphy->bands[band]->n_channels; 646 if (nchans <= 0) 647 return (NULL); 648 649 channels = hw->wiphy->bands[band]->channels; 650 for (i = 0; i < nchans; i++) { 651 if (channels[i].hw_value == c->ic_ieee) 652 return (&channels[i]); 653 } 654 655 return (NULL); 656 } 657 658 #if 0 659 static struct linuxkpi_ieee80211_channel * 660 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 661 { 662 struct linuxkpi_ieee80211_channel *chan; 663 struct ieee80211_channel *c; 664 struct lkpi_hw *lhw; 665 666 chan = NULL; 667 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 668 c = ni->ni_chan; 669 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 670 c = ic->ic_bsschan; 671 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 672 c = ic->ic_curchan; 673 else 674 c = NULL; 675 676 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 677 lhw = ic->ic_softc; 678 chan = lkpi_find_lkpi80211_chan(lhw, c); 679 } 680 681 return (chan); 682 } 683 #endif 684 685 struct linuxkpi_ieee80211_channel * 686 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 687 { 688 enum nl80211_band band; 689 690 for (band = 0; band < NUM_NL80211_BANDS; band++) { 691 struct ieee80211_supported_band *supband; 692 struct linuxkpi_ieee80211_channel *channels; 693 int i; 694 695 supband = wiphy->bands[band]; 696 if (supband == NULL || supband->n_channels == 0) 697 continue; 698 699 channels = supband->channels; 700 for (i = 0; i < supband->n_channels; i++) { 701 if (channels[i].center_freq == freq) 702 return (&channels[i]); 703 } 704 } 705 706 return (NULL); 707 } 708 709 #ifdef LKPI_80211_HW_CRYPTO 710 static int 711 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 712 enum set_key_cmd cmd) 713 { 714 struct ieee80211com *ic; 715 struct lkpi_hw *lhw; 716 struct ieee80211_hw *hw; 717 struct lkpi_vif *lvif; 718 struct ieee80211_vif *vif; 719 struct ieee80211_sta *sta; 720 struct ieee80211_node *ni; 721 struct ieee80211_key_conf *kc; 722 int error; 723 724 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 725 726 ic = vap->iv_ic; 727 lhw = ic->ic_softc; 728 hw = LHW_TO_HW(lhw); 729 lvif = VAP_TO_LVIF(vap); 730 vif = LVIF_TO_VIF(lvif); 731 732 memset(&kc, 0, sizeof(kc)); 733 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 734 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 735 k->wk_cipher->ic_cipher, k->wk_keylen); 736 kc->keyidx = k->wk_keyix; 737 #if 0 738 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 739 #endif 740 atomic64_set(&kc->tx_pn, k->wk_keytsc); 741 kc->keylen = k->wk_keylen; 742 memcpy(kc->key, k->wk_key, k->wk_keylen); 743 744 switch (kc->cipher) { 745 case WLAN_CIPHER_SUITE_CCMP: 746 kc->iv_len = k->wk_cipher->ic_header; 747 kc->icv_len = k->wk_cipher->ic_trailer; 748 break; 749 case WLAN_CIPHER_SUITE_TKIP: 750 default: 751 IMPROVE(); 752 return (0); 753 }; 754 755 ni = vap->iv_bss; 756 sta = ieee80211_find_sta(vif, ni->ni_bssid); 757 if (sta != NULL) { 758 struct lkpi_sta *lsta; 759 760 lsta = STA_TO_LSTA(sta); 761 lsta->kc = kc; 762 } 763 764 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 765 if (error != 0) { 766 /* XXX-BZ leaking kc currently */ 767 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 768 return (0); 769 } else { 770 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 771 "flags %#10x\n", __func__, 772 kc->keyidx, kc->hw_key_idx, kc->flags); 773 return (1); 774 } 775 } 776 777 static int 778 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 779 { 780 781 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 782 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 783 } 784 static int 785 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 786 { 787 788 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 789 } 790 #endif 791 792 static u_int 793 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 794 { 795 struct netdev_hw_addr_list *mc_list; 796 struct netdev_hw_addr *addr; 797 798 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 799 __func__, arg, sdl, cnt)); 800 801 mc_list = arg; 802 /* If it is on the list already skip it. */ 803 netdev_hw_addr_list_for_each(addr, mc_list) { 804 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 805 return (0); 806 } 807 808 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 809 if (addr == NULL) 810 return (0); 811 812 INIT_LIST_HEAD(&addr->addr_list); 813 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 814 /* XXX this should be a netdev function? */ 815 list_add(&addr->addr_list, &mc_list->addr_list); 816 mc_list->count++; 817 818 #ifdef LINUXKPI_DEBUG_80211 819 if (linuxkpi_debug_80211 & D80211_TRACE) 820 printf("%s:%d: mc_list count %d: added %6D\n", 821 __func__, __LINE__, mc_list->count, addr->addr, ":"); 822 #endif 823 824 return (1); 825 } 826 827 static void 828 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 829 { 830 struct lkpi_hw *lhw; 831 struct ieee80211_hw *hw; 832 struct netdev_hw_addr_list mc_list; 833 struct list_head *le, *next; 834 struct netdev_hw_addr *addr; 835 struct ieee80211vap *vap; 836 u64 mc; 837 unsigned int changed_flags, total_flags; 838 839 lhw = ic->ic_softc; 840 841 if (lhw->ops->prepare_multicast == NULL || 842 lhw->ops->configure_filter == NULL) 843 return; 844 845 if (!lhw->update_mc && !force) 846 return; 847 848 changed_flags = total_flags = 0; 849 mc_list.count = 0; 850 INIT_LIST_HEAD(&mc_list.addr_list); 851 if (ic->ic_allmulti == 0) { 852 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 853 if_foreach_llmaddr(vap->iv_ifp, 854 lkpi_ic_update_mcast_copy, &mc_list); 855 } else { 856 changed_flags |= FIF_ALLMULTI; 857 } 858 859 hw = LHW_TO_HW(lhw); 860 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 861 /* 862 * XXX-BZ make sure to get this sorted what is a change, 863 * what gets all set; what was already set? 864 */ 865 total_flags = changed_flags; 866 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 867 868 #ifdef LINUXKPI_DEBUG_80211 869 if (linuxkpi_debug_80211 & D80211_TRACE) 870 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 871 __func__, changed_flags, mc_list.count, total_flags); 872 #endif 873 874 if (mc_list.count != 0) { 875 list_for_each_safe(le, next, &mc_list.addr_list) { 876 addr = list_entry(le, struct netdev_hw_addr, addr_list); 877 free(addr, M_LKPI80211); 878 mc_list.count--; 879 } 880 } 881 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 882 __func__, &mc_list, mc_list.count)); 883 } 884 885 static enum ieee80211_bss_changed 886 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 887 struct ieee80211vap *vap, const char *_f, int _l) 888 { 889 enum ieee80211_bss_changed bss_changed; 890 891 bss_changed = 0; 892 893 #ifdef LINUXKPI_DEBUG_80211 894 if (linuxkpi_debug_80211 & D80211_TRACE) 895 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 896 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 897 "sync_device_ts %u bss_changed %#08x\n", 898 __func__, __LINE__, _f, _l, 899 vif->cfg.assoc, vif->cfg.aid, 900 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 901 vif->bss_conf.sync_dtim_count, 902 (uintmax_t)vif->bss_conf.sync_tsf, 903 vif->bss_conf.sync_device_ts, 904 bss_changed); 905 #endif 906 907 if (vif->bss_conf.beacon_int != ni->ni_intval) { 908 vif->bss_conf.beacon_int = ni->ni_intval; 909 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 910 if (vif->bss_conf.beacon_int < 16) 911 vif->bss_conf.beacon_int = 16; 912 bss_changed |= BSS_CHANGED_BEACON_INT; 913 } 914 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 915 vap->iv_dtim_period > 0) { 916 vif->bss_conf.dtim_period = vap->iv_dtim_period; 917 bss_changed |= BSS_CHANGED_BEACON_INFO; 918 } 919 920 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 921 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 922 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 923 924 #ifdef LINUXKPI_DEBUG_80211 925 if (linuxkpi_debug_80211 & D80211_TRACE) 926 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 927 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 928 "sync_device_ts %u bss_changed %#08x\n", 929 __func__, __LINE__, _f, _l, 930 vif->cfg.assoc, vif->cfg.aid, 931 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 932 vif->bss_conf.sync_dtim_count, 933 (uintmax_t)vif->bss_conf.sync_tsf, 934 vif->bss_conf.sync_device_ts, 935 bss_changed); 936 #endif 937 938 return (bss_changed); 939 } 940 941 static void 942 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 943 { 944 struct ieee80211_hw *hw; 945 int error; 946 bool cancel; 947 948 LKPI_80211_LHW_SCAN_LOCK(lhw); 949 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 950 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 951 if (!cancel) 952 return; 953 954 hw = LHW_TO_HW(lhw); 955 956 IEEE80211_UNLOCK(lhw->ic); 957 LKPI_80211_LHW_LOCK(lhw); 958 /* Need to cancel the scan. */ 959 lkpi_80211_mo_cancel_hw_scan(hw, vif); 960 LKPI_80211_LHW_UNLOCK(lhw); 961 962 /* Need to make sure we see ieee80211_scan_completed. */ 963 LKPI_80211_LHW_SCAN_LOCK(lhw); 964 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 965 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 966 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 967 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 968 969 IEEE80211_LOCK(lhw->ic); 970 971 if (cancel) 972 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 973 __func__, error, lhw, vif); 974 } 975 976 static void 977 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 978 { 979 struct lkpi_hw *lhw; 980 int error; 981 bool old; 982 983 old = hw->conf.flags & IEEE80211_CONF_IDLE; 984 if (old == new) 985 return; 986 987 hw->conf.flags ^= IEEE80211_CONF_IDLE; 988 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 989 if (error != 0 && error != EOPNOTSUPP) { 990 lhw = HW_TO_LHW(hw); 991 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 992 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 993 } 994 } 995 996 static enum ieee80211_bss_changed 997 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 998 struct lkpi_hw *lhw) 999 { 1000 enum ieee80211_bss_changed changed; 1001 1002 changed = 0; 1003 sta->aid = 0; 1004 if (vif->cfg.assoc) { 1005 1006 lhw->update_mc = true; 1007 lkpi_update_mcast_filter(lhw->ic, true); 1008 1009 vif->cfg.assoc = false; 1010 vif->cfg.aid = 0; 1011 changed |= BSS_CHANGED_ASSOC; 1012 IMPROVE(); 1013 1014 /* 1015 * Executing the bss_info_changed(BSS_CHANGED_ASSOC) with 1016 * assoc = false right away here will remove the sta from 1017 * firmware for iwlwifi. 1018 * We no longer do this but only return the BSS_CHNAGED value. 1019 * The caller is responsible for removing the sta gong to 1020 * IEEE80211_STA_NOTEXIST and then executing the 1021 * bss_info_changed() update. 1022 * See lkpi_sta_run_to_init() for more detailed comment. 1023 */ 1024 } 1025 1026 return (changed); 1027 } 1028 1029 static void 1030 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 1031 bool dequeue_seen, bool no_emptyq) 1032 { 1033 struct lkpi_txq *ltxq; 1034 int tid; 1035 bool ltxq_empty; 1036 1037 /* Wake up all queues to know they are allocated in the driver. */ 1038 for (tid = 0; tid < nitems(sta->txq); tid++) { 1039 1040 if (tid == IEEE80211_NUM_TIDS) { 1041 IMPROVE("station specific?"); 1042 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 1043 continue; 1044 } else if (tid >= hw->queues) 1045 continue; 1046 1047 if (sta->txq[tid] == NULL) 1048 continue; 1049 1050 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1051 if (dequeue_seen && !ltxq->seen_dequeue) 1052 continue; 1053 1054 LKPI_80211_LTXQ_LOCK(ltxq); 1055 ltxq_empty = skb_queue_empty(<xq->skbq); 1056 LKPI_80211_LTXQ_UNLOCK(ltxq); 1057 if (no_emptyq && ltxq_empty) 1058 continue; 1059 1060 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 1061 } 1062 } 1063 1064 /* -------------------------------------------------------------------------- */ 1065 1066 static int 1067 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1068 { 1069 1070 return (0); 1071 } 1072 1073 /* lkpi_iv_newstate() handles the stop scan case generally. */ 1074 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 1075 1076 static int 1077 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1078 { 1079 struct linuxkpi_ieee80211_channel *chan; 1080 struct lkpi_chanctx *lchanctx; 1081 struct ieee80211_chanctx_conf *chanctx_conf; 1082 struct lkpi_hw *lhw; 1083 struct ieee80211_hw *hw; 1084 struct lkpi_vif *lvif; 1085 struct ieee80211_vif *vif; 1086 struct ieee80211_node *ni; 1087 struct lkpi_sta *lsta; 1088 enum ieee80211_bss_changed bss_changed; 1089 struct ieee80211_prep_tx_info prep_tx_info; 1090 uint32_t changed; 1091 int error; 1092 1093 /* 1094 * In here we use vap->iv_bss until lvif->lvif_bss is set. 1095 * For all later (STATE >= AUTH) functions we need to use the lvif 1096 * cache which will be tracked even through (*iv_update_bss)(). 1097 */ 1098 1099 if (vap->iv_bss == NULL) { 1100 ic_printf(vap->iv_ic, "%s: no iv_bss for vap %p\n", __func__, vap); 1101 return (EINVAL); 1102 } 1103 /* 1104 * Keep the ni alive locally. In theory (and practice) iv_bss can change 1105 * once we unlock here. This is due to net80211 allowing state changes 1106 * and new join1() despite having an active node as well as due to 1107 * the fact that the iv_bss can be swapped under the hood in (*iv_update_bss). 1108 */ 1109 ni = ieee80211_ref_node(vap->iv_bss); 1110 if (ni->ni_chan == NULL || ni->ni_chan == IEEE80211_CHAN_ANYC) { 1111 ic_printf(vap->iv_ic, "%s: no channel set for iv_bss ni %p " 1112 "on vap %p\n", __func__, ni, vap); 1113 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1114 return (EINVAL); 1115 } 1116 1117 lhw = vap->iv_ic->ic_softc; 1118 chan = lkpi_find_lkpi80211_chan(lhw, ni->ni_chan); 1119 if (chan == NULL) { 1120 ic_printf(vap->iv_ic, "%s: failed to get LKPI channel from " 1121 "iv_bss ni %p on vap %p\n", __func__, ni, vap); 1122 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1123 return (ESRCH); 1124 } 1125 1126 hw = LHW_TO_HW(lhw); 1127 lvif = VAP_TO_LVIF(vap); 1128 vif = LVIF_TO_VIF(lvif); 1129 1130 LKPI_80211_LVIF_LOCK(lvif); 1131 /* XXX-BZ KASSERT later? */ 1132 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) { 1133 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1134 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1135 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1136 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1137 lvif->lvif_bss_synched); 1138 return (EBUSY); 1139 } 1140 LKPI_80211_LVIF_UNLOCK(lvif); 1141 1142 IEEE80211_UNLOCK(vap->iv_ic); 1143 LKPI_80211_LHW_LOCK(lhw); 1144 1145 /* Add chanctx (or if exists, change it). */ 1146 if (vif->chanctx_conf != NULL) { 1147 chanctx_conf = vif->chanctx_conf; 1148 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1149 IMPROVE("diff changes for changed, working on live copy, rcu"); 1150 } else { 1151 /* Keep separate alloc as in Linux this is rcu managed? */ 1152 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 1153 M_LKPI80211, M_WAITOK | M_ZERO); 1154 chanctx_conf = &lchanctx->chanctx_conf; 1155 } 1156 1157 chanctx_conf->rx_chains_dynamic = 1; 1158 chanctx_conf->rx_chains_static = 1; 1159 chanctx_conf->radar_enabled = 1160 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 1161 chanctx_conf->def.chan = chan; 1162 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 1163 chanctx_conf->def.center_freq1 = chan->center_freq; 1164 chanctx_conf->def.center_freq2 = 0; 1165 IMPROVE("Check vht_cap from band not just chan?"); 1166 KASSERT(ni->ni_chan != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC, 1167 ("%s:%d: ni %p ni_chan %p\n", __func__, __LINE__, ni, ni->ni_chan)); 1168 #ifdef LKPI_80211_HT 1169 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 1170 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 1171 chanctx_conf->def.width = NL80211_CHAN_WIDTH_40; 1172 } else 1173 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20; 1174 } 1175 #endif 1176 #ifdef LKPI_80211_VHT 1177 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 1178 #ifdef __notyet__ 1179 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 1180 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80P80; 1181 chanctx_conf->def.center_freq2 = 0; /* XXX */ 1182 } else 1183 #endif 1184 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 1185 chanctx_conf->def.width = NL80211_CHAN_WIDTH_160; 1186 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 1187 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80; 1188 } 1189 #endif 1190 /* Responder ... */ 1191 chanctx_conf->min_def.chan = chan; 1192 chanctx_conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 1193 chanctx_conf->min_def.center_freq1 = chan->center_freq; 1194 chanctx_conf->min_def.center_freq2 = 0; 1195 IMPROVE("currently 20_NOHT min_def only"); 1196 1197 /* Set bss info (bss_info_changed). */ 1198 bss_changed = 0; 1199 vif->bss_conf.bssid = ni->ni_bssid; 1200 bss_changed |= BSS_CHANGED_BSSID; 1201 vif->bss_conf.txpower = ni->ni_txpower; 1202 bss_changed |= BSS_CHANGED_TXPOWER; 1203 vif->cfg.idle = false; 1204 bss_changed |= BSS_CHANGED_IDLE; 1205 1206 /* vif->bss_conf.basic_rates ? Where exactly? */ 1207 1208 /* Should almost assert it is this. */ 1209 vif->cfg.assoc = false; 1210 vif->cfg.aid = 0; 1211 1212 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1213 1214 error = 0; 1215 if (vif->chanctx_conf != NULL) { 1216 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 1217 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 1218 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 1219 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 1220 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 1221 } else { 1222 error = lkpi_80211_mo_add_chanctx(hw, chanctx_conf); 1223 if (error == 0 || error == EOPNOTSUPP) { 1224 vif->bss_conf.chandef.chan = chanctx_conf->def.chan; 1225 vif->bss_conf.chandef.width = chanctx_conf->def.width; 1226 vif->bss_conf.chandef.center_freq1 = 1227 chanctx_conf->def.center_freq1; 1228 #ifdef LKPI_80211_HT 1229 if (vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_40) { 1230 /* Note: it is 10 not 20. */ 1231 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) 1232 vif->bss_conf.chandef.center_freq1 += 10; 1233 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 1234 vif->bss_conf.chandef.center_freq1 -= 10; 1235 } 1236 #endif 1237 vif->bss_conf.chandef.center_freq2 = 1238 chanctx_conf->def.center_freq2; 1239 } else { 1240 ic_printf(vap->iv_ic, "%s:%d: mo_add_chanctx " 1241 "failed: %d\n", __func__, __LINE__, error); 1242 goto out; 1243 } 1244 1245 vif->bss_conf.chanctx_conf = chanctx_conf; 1246 1247 /* Assign vif chanctx. */ 1248 if (error == 0) 1249 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1250 &vif->bss_conf, chanctx_conf); 1251 if (error == EOPNOTSUPP) 1252 error = 0; 1253 if (error != 0) { 1254 ic_printf(vap->iv_ic, "%s:%d: mo_assign_vif_chanctx " 1255 "failed: %d\n", __func__, __LINE__, error); 1256 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1257 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1258 free(lchanctx, M_LKPI80211); 1259 goto out; 1260 } 1261 } 1262 IMPROVE("update radiotap chan fields too"); 1263 1264 /* RATES */ 1265 IMPROVE("bss info: not all needs to come now and rates are missing"); 1266 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1267 1268 /* 1269 * Given ni and lsta are 1:1 from alloc to free we can assert that 1270 * ni always has lsta data attach despite net80211 node swapping 1271 * under the hoods. 1272 */ 1273 KASSERT(ni->ni_drv_data != NULL, ("%s: ni %p ni_drv_data %p\n", 1274 __func__, ni, ni->ni_drv_data)); 1275 lsta = ni->ni_drv_data; 1276 1277 LKPI_80211_LVIF_LOCK(lvif); 1278 /* Re-check given (*iv_update_bss) could have happened. */ 1279 /* XXX-BZ KASSERT later? or deal as error? */ 1280 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) 1281 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1282 "lvif_bss->ni %p synched %d, ni %p lsta %p\n", __func__, __LINE__, 1283 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1284 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1285 lvif->lvif_bss_synched, ni, lsta); 1286 1287 /* 1288 * Reference the ni for this cache of lsta/ni on lvif->lvif_bss 1289 * essentially out lsta version of the iv_bss. 1290 * Do NOT use iv_bss here anymore as that may have diverged from our 1291 * function local ni already and would lead to inconsistencies. 1292 */ 1293 ieee80211_ref_node(ni); 1294 lvif->lvif_bss = lsta; 1295 lvif->lvif_bss_synched = true; 1296 1297 /* Insert the [l]sta into the list of known stations. */ 1298 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1299 LKPI_80211_LVIF_UNLOCK(lvif); 1300 1301 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1302 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1303 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1304 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1305 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1306 if (error != 0) { 1307 IMPROVE("do we need to undo the chan ctx?"); 1308 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1309 "failed: %d\n", __func__, __LINE__, error); 1310 goto out; 1311 } 1312 #if 0 1313 lsta->added_to_drv = true; /* mo manages. */ 1314 #endif 1315 1316 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1317 1318 #if 0 1319 /* 1320 * Wakeup all queues now that sta is there so we have as much time to 1321 * possibly prepare the queue in the driver to be ready for the 1st 1322 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1323 * is no guarantee or way to check. 1324 * XXX-BZ and by now we know that this does not work on all drivers 1325 * for all queues. 1326 */ 1327 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1328 #endif 1329 1330 /* Start mgd_prepare_tx. */ 1331 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1332 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1333 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1334 lsta->in_mgd = true; 1335 1336 /* 1337 * What is going to happen next: 1338 * - <twiddle> .. we should end up in "auth_to_assoc" 1339 * - event_callback 1340 * - update sta_state (NONE to AUTH) 1341 * - mgd_complete_tx 1342 * (ideally we'd do that on a callback for something else ...) 1343 */ 1344 1345 out: 1346 LKPI_80211_LHW_UNLOCK(lhw); 1347 IEEE80211_LOCK(vap->iv_ic); 1348 /* 1349 * Release the reference that keop the ni stable locally 1350 * during the work of this function. 1351 */ 1352 if (ni != NULL) 1353 ieee80211_free_node(ni); 1354 return (error); 1355 } 1356 1357 static int 1358 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1359 { 1360 struct lkpi_hw *lhw; 1361 struct ieee80211_hw *hw; 1362 struct lkpi_vif *lvif; 1363 struct ieee80211_vif *vif; 1364 struct ieee80211_node *ni; 1365 struct lkpi_sta *lsta; 1366 struct ieee80211_sta *sta; 1367 struct ieee80211_prep_tx_info prep_tx_info; 1368 int error; 1369 1370 lhw = vap->iv_ic->ic_softc; 1371 hw = LHW_TO_HW(lhw); 1372 lvif = VAP_TO_LVIF(vap); 1373 vif = LVIF_TO_VIF(lvif); 1374 1375 LKPI_80211_LVIF_LOCK(lvif); 1376 #ifdef LINUXKPI_DEBUG_80211 1377 /* XXX-BZ KASSERT later; state going down so no action. */ 1378 if (lvif->lvif_bss == NULL) 1379 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1380 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1381 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1382 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1383 lvif->lvif_bss_synched); 1384 #endif 1385 1386 lsta = lvif->lvif_bss; 1387 LKPI_80211_LVIF_UNLOCK(lvif); 1388 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1389 "lvif %p vap %p\n", __func__, 1390 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1391 ni = lsta->ni; /* Reference held for lvif_bss. */ 1392 sta = LSTA_TO_STA(lsta); 1393 1394 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1395 1396 IEEE80211_UNLOCK(vap->iv_ic); 1397 LKPI_80211_LHW_LOCK(lhw); 1398 1399 /* flush, drop. */ 1400 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1401 1402 /* Wake tx queues to get packet(s) out. */ 1403 lkpi_wake_tx_queues(hw, sta, true, true); 1404 1405 /* flush, no drop */ 1406 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1407 1408 /* End mgd_complete_tx. */ 1409 if (lsta->in_mgd) { 1410 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1411 prep_tx_info.success = false; 1412 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1413 lsta->in_mgd = false; 1414 } 1415 1416 /* sync_rx_queues */ 1417 lkpi_80211_mo_sync_rx_queues(hw); 1418 1419 /* sta_pre_rcu_remove */ 1420 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1421 1422 /* Take the station down. */ 1423 1424 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1425 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1426 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1427 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1428 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1429 if (error != 0) { 1430 IMPROVE("do we need to undo the chan ctx?"); 1431 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1432 "failed: %d\n", __func__, __LINE__, error); 1433 goto out; 1434 } 1435 #if 0 1436 lsta->added_to_drv = false; /* mo manages. */ 1437 #endif 1438 1439 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1440 1441 LKPI_80211_LVIF_LOCK(lvif); 1442 /* Remove ni reference for this cache of lsta. */ 1443 lvif->lvif_bss = NULL; 1444 lvif->lvif_bss_synched = false; 1445 LKPI_80211_LVIF_UNLOCK(lvif); 1446 lkpi_lsta_remove(lsta, lvif); 1447 /* 1448 * The very last release the reference on the ni for the ni/lsta on 1449 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1450 * and potentially freed. 1451 */ 1452 ieee80211_free_node(ni); 1453 1454 /* conf_tx */ 1455 1456 /* Take the chan ctx down. */ 1457 if (vif->chanctx_conf != NULL) { 1458 struct lkpi_chanctx *lchanctx; 1459 struct ieee80211_chanctx_conf *chanctx_conf; 1460 1461 chanctx_conf = vif->chanctx_conf; 1462 /* Remove vif context. */ 1463 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1464 /* NB: vif->chanctx_conf is NULL now. */ 1465 1466 lkpi_hw_conf_idle(hw, true); 1467 1468 /* Remove chan ctx. */ 1469 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1470 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1471 free(lchanctx, M_LKPI80211); 1472 } 1473 1474 out: 1475 LKPI_80211_LHW_UNLOCK(lhw); 1476 IEEE80211_LOCK(vap->iv_ic); 1477 return (error); 1478 } 1479 1480 static int 1481 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1482 { 1483 int error; 1484 1485 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1486 if (error == 0) 1487 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1488 return (error); 1489 } 1490 1491 static int 1492 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1493 { 1494 struct lkpi_hw *lhw; 1495 struct ieee80211_hw *hw; 1496 struct lkpi_vif *lvif; 1497 struct ieee80211_vif *vif; 1498 struct lkpi_sta *lsta; 1499 struct ieee80211_prep_tx_info prep_tx_info; 1500 int error; 1501 1502 lhw = vap->iv_ic->ic_softc; 1503 hw = LHW_TO_HW(lhw); 1504 lvif = VAP_TO_LVIF(vap); 1505 vif = LVIF_TO_VIF(lvif); 1506 1507 IEEE80211_UNLOCK(vap->iv_ic); 1508 LKPI_80211_LHW_LOCK(lhw); 1509 1510 LKPI_80211_LVIF_LOCK(lvif); 1511 /* XXX-BZ KASSERT later? */ 1512 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1513 #ifdef LINUXKPI_DEBUG_80211 1514 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1515 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1516 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1517 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1518 lvif->lvif_bss_synched); 1519 #endif 1520 error = ENOTRECOVERABLE; 1521 LKPI_80211_LVIF_UNLOCK(lvif); 1522 goto out; 1523 } 1524 lsta = lvif->lvif_bss; 1525 LKPI_80211_LVIF_UNLOCK(lvif); 1526 1527 KASSERT(lsta != NULL, ("%s: lsta %p\n", __func__, lsta)); 1528 1529 /* Finish auth. */ 1530 IMPROVE("event callback"); 1531 1532 /* Update sta_state (NONE to AUTH). */ 1533 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1534 "NONE: %#x\n", __func__, lsta, lsta->state)); 1535 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1536 if (error != 0) { 1537 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1538 "failed: %d\n", __func__, __LINE__, error); 1539 goto out; 1540 } 1541 1542 /* End mgd_complete_tx. */ 1543 if (lsta->in_mgd) { 1544 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1545 prep_tx_info.success = true; 1546 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1547 lsta->in_mgd = false; 1548 } 1549 1550 /* Now start assoc. */ 1551 1552 /* Start mgd_prepare_tx. */ 1553 if (!lsta->in_mgd) { 1554 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1555 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1556 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1557 lsta->in_mgd = true; 1558 } 1559 1560 /* Wake tx queue to get packet out. */ 1561 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1562 1563 /* 1564 * <twiddle> .. we end up in "assoc_to_run" 1565 * - update sta_state (AUTH to ASSOC) 1566 * - conf_tx [all] 1567 * - bss_info_changed (assoc, aid, ssid, ..) 1568 * - change_chanctx (if needed) 1569 * - event_callback 1570 * - mgd_complete_tx 1571 */ 1572 1573 out: 1574 LKPI_80211_LHW_UNLOCK(lhw); 1575 IEEE80211_LOCK(vap->iv_ic); 1576 return (error); 1577 } 1578 1579 /* auth_to_auth, assoc_to_assoc. */ 1580 static int 1581 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1582 { 1583 struct lkpi_hw *lhw; 1584 struct ieee80211_hw *hw; 1585 struct lkpi_vif *lvif; 1586 struct ieee80211_vif *vif; 1587 struct lkpi_sta *lsta; 1588 struct ieee80211_prep_tx_info prep_tx_info; 1589 int error; 1590 1591 lhw = vap->iv_ic->ic_softc; 1592 hw = LHW_TO_HW(lhw); 1593 lvif = VAP_TO_LVIF(vap); 1594 vif = LVIF_TO_VIF(lvif); 1595 1596 IEEE80211_UNLOCK(vap->iv_ic); 1597 LKPI_80211_LHW_LOCK(lhw); 1598 1599 LKPI_80211_LVIF_LOCK(lvif); 1600 /* XXX-BZ KASSERT later? */ 1601 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1602 #ifdef LINUXKPI_DEBUG_80211 1603 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1604 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1605 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1606 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1607 lvif->lvif_bss_synched); 1608 #endif 1609 LKPI_80211_LVIF_UNLOCK(lvif); 1610 error = ENOTRECOVERABLE; 1611 goto out; 1612 } 1613 lsta = lvif->lvif_bss; 1614 LKPI_80211_LVIF_UNLOCK(lvif); 1615 1616 KASSERT(lsta != NULL, ("%s: lsta %p! lvif %p vap %p\n", __func__, 1617 lsta, lvif, vap)); 1618 1619 IMPROVE("event callback?"); 1620 1621 /* End mgd_complete_tx. */ 1622 if (lsta->in_mgd) { 1623 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1624 prep_tx_info.success = false; 1625 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1626 lsta->in_mgd = false; 1627 } 1628 1629 /* Now start assoc. */ 1630 1631 /* Start mgd_prepare_tx. */ 1632 if (!lsta->in_mgd) { 1633 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1634 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1635 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1636 lsta->in_mgd = true; 1637 } 1638 1639 error = 0; 1640 out: 1641 LKPI_80211_LHW_UNLOCK(lhw); 1642 IEEE80211_LOCK(vap->iv_ic); 1643 1644 return (error); 1645 } 1646 1647 static int 1648 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1649 { 1650 struct lkpi_hw *lhw; 1651 struct ieee80211_hw *hw; 1652 struct lkpi_vif *lvif; 1653 struct ieee80211_vif *vif; 1654 struct ieee80211_node *ni; 1655 struct lkpi_sta *lsta; 1656 struct ieee80211_sta *sta; 1657 struct ieee80211_prep_tx_info prep_tx_info; 1658 enum ieee80211_bss_changed bss_changed; 1659 int error; 1660 1661 lhw = vap->iv_ic->ic_softc; 1662 hw = LHW_TO_HW(lhw); 1663 lvif = VAP_TO_LVIF(vap); 1664 vif = LVIF_TO_VIF(lvif); 1665 1666 IEEE80211_UNLOCK(vap->iv_ic); 1667 LKPI_80211_LHW_LOCK(lhw); 1668 1669 LKPI_80211_LVIF_LOCK(lvif); 1670 #ifdef LINUXKPI_DEBUG_80211 1671 /* XXX-BZ KASSERT later; state going down so no action. */ 1672 if (lvif->lvif_bss == NULL) 1673 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1674 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1675 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1676 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1677 lvif->lvif_bss_synched); 1678 #endif 1679 lsta = lvif->lvif_bss; 1680 LKPI_80211_LVIF_UNLOCK(lvif); 1681 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1682 "lvif %p vap %p\n", __func__, 1683 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1684 1685 ni = lsta->ni; /* Reference held for lvif_bss. */ 1686 sta = LSTA_TO_STA(lsta); 1687 1688 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1689 1690 /* flush, drop. */ 1691 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1692 1693 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1694 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1695 !lsta->in_mgd) { 1696 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1697 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1698 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1699 lsta->in_mgd = true; 1700 } 1701 1702 LKPI_80211_LHW_UNLOCK(lhw); 1703 IEEE80211_LOCK(vap->iv_ic); 1704 1705 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1706 error = lvif->iv_newstate(vap, nstate, arg); 1707 if (error != 0) { 1708 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1709 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1710 goto outni; 1711 } 1712 1713 IEEE80211_UNLOCK(vap->iv_ic); 1714 LKPI_80211_LHW_LOCK(lhw); 1715 1716 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1717 1718 /* Wake tx queues to get packet(s) out. */ 1719 lkpi_wake_tx_queues(hw, sta, true, true); 1720 1721 /* flush, no drop */ 1722 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1723 1724 /* End mgd_complete_tx. */ 1725 if (lsta->in_mgd) { 1726 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1727 prep_tx_info.success = false; 1728 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1729 lsta->in_mgd = false; 1730 } 1731 1732 /* sync_rx_queues */ 1733 lkpi_80211_mo_sync_rx_queues(hw); 1734 1735 /* sta_pre_rcu_remove */ 1736 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1737 1738 /* Take the station down. */ 1739 1740 /* Update sta and change state (from AUTH) to NONE. */ 1741 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1742 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1743 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1744 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1745 if (error != 0) { 1746 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1747 "failed: %d\n", __func__, __LINE__, error); 1748 goto out; 1749 } 1750 1751 /* See comment in lkpi_sta_run_to_init(). */ 1752 bss_changed = 0; 1753 bss_changed |= lkpi_disassoc(sta, vif, lhw); 1754 1755 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 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 vif->bss_conf.qos = 0; 1773 bss_changed |= BSS_CHANGED_QOS; 1774 vif->cfg.ssid_len = 0; 1775 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1776 bss_changed |= BSS_CHANGED_BSSID; 1777 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1778 1779 LKPI_80211_LVIF_LOCK(lvif); 1780 /* Remove ni reference for this cache of lsta. */ 1781 lvif->lvif_bss = NULL; 1782 lvif->lvif_bss_synched = false; 1783 LKPI_80211_LVIF_UNLOCK(lvif); 1784 lkpi_lsta_remove(lsta, lvif); 1785 /* 1786 * The very last release the reference on the ni for the ni/lsta on 1787 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1788 * and potentially freed. 1789 */ 1790 ieee80211_free_node(ni); 1791 1792 /* conf_tx */ 1793 1794 /* Take the chan ctx down. */ 1795 if (vif->chanctx_conf != NULL) { 1796 struct lkpi_chanctx *lchanctx; 1797 struct ieee80211_chanctx_conf *chanctx_conf; 1798 1799 chanctx_conf = vif->chanctx_conf; 1800 /* Remove vif context. */ 1801 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1802 /* NB: vif->chanctx_conf is NULL now. */ 1803 1804 lkpi_hw_conf_idle(hw, true); 1805 1806 /* Remove chan ctx. */ 1807 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1808 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1809 free(lchanctx, M_LKPI80211); 1810 } 1811 1812 error = EALREADY; 1813 out: 1814 LKPI_80211_LHW_UNLOCK(lhw); 1815 IEEE80211_LOCK(vap->iv_ic); 1816 outni: 1817 return (error); 1818 } 1819 1820 static int 1821 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1822 { 1823 int error; 1824 1825 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1826 if (error != 0 && error != EALREADY) 1827 return (error); 1828 1829 /* At this point iv_bss is long a new node! */ 1830 1831 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1832 return (error); 1833 } 1834 1835 static int 1836 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1837 { 1838 int error; 1839 1840 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1841 return (error); 1842 } 1843 1844 static int 1845 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1846 { 1847 int error; 1848 1849 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1850 return (error); 1851 } 1852 1853 static int 1854 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1855 { 1856 struct lkpi_hw *lhw; 1857 struct ieee80211_hw *hw; 1858 struct lkpi_vif *lvif; 1859 struct ieee80211_vif *vif; 1860 struct ieee80211_node *ni; 1861 struct lkpi_sta *lsta; 1862 struct ieee80211_sta *sta; 1863 struct ieee80211_prep_tx_info prep_tx_info; 1864 enum ieee80211_bss_changed bss_changed; 1865 int error; 1866 1867 lhw = vap->iv_ic->ic_softc; 1868 hw = LHW_TO_HW(lhw); 1869 lvif = VAP_TO_LVIF(vap); 1870 vif = LVIF_TO_VIF(lvif); 1871 1872 IEEE80211_UNLOCK(vap->iv_ic); 1873 LKPI_80211_LHW_LOCK(lhw); 1874 1875 LKPI_80211_LVIF_LOCK(lvif); 1876 /* XXX-BZ KASSERT later? */ 1877 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1878 #ifdef LINUXKPI_DEBUG_80211 1879 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1880 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1881 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1882 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1883 lvif->lvif_bss_synched); 1884 #endif 1885 LKPI_80211_LVIF_UNLOCK(lvif); 1886 error = ENOTRECOVERABLE; 1887 goto out; 1888 } 1889 lsta = lvif->lvif_bss; 1890 LKPI_80211_LVIF_UNLOCK(lvif); 1891 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1892 "lvif %p vap %p\n", __func__, 1893 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1894 1895 ni = lsta->ni; /* Reference held for lvif_bss. */ 1896 1897 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1898 "and to lesser extend ieee80211_notify_node_join"); 1899 1900 /* Finish assoc. */ 1901 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1902 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1903 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1904 sta = LSTA_TO_STA(lsta); 1905 sta->aid = IEEE80211_NODE_AID(ni); 1906 #ifdef LKPI_80211_WME 1907 if (vap->iv_flags & IEEE80211_F_WME) 1908 sta->wme = true; 1909 #endif 1910 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1911 if (error != 0) { 1912 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1913 "failed: %d\n", __func__, __LINE__, error); 1914 goto out; 1915 } 1916 1917 IMPROVE("wme / conf_tx [all]"); 1918 1919 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1920 bss_changed = 0; 1921 #ifdef LKPI_80211_WME 1922 bss_changed |= lkpi_wme_update(lhw, vap, true); 1923 #endif 1924 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 1925 vif->cfg.assoc = true; 1926 vif->cfg.aid = IEEE80211_NODE_AID(ni); 1927 bss_changed |= BSS_CHANGED_ASSOC; 1928 } 1929 /* We set SSID but this is not BSSID! */ 1930 vif->cfg.ssid_len = ni->ni_esslen; 1931 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 1932 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1933 vif->bss_conf.use_short_preamble) { 1934 vif->bss_conf.use_short_preamble ^= 1; 1935 /* bss_changed |= BSS_CHANGED_??? */ 1936 } 1937 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1938 vif->bss_conf.use_short_slot) { 1939 vif->bss_conf.use_short_slot ^= 1; 1940 /* bss_changed |= BSS_CHANGED_??? */ 1941 } 1942 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1943 vif->bss_conf.qos) { 1944 vif->bss_conf.qos ^= 1; 1945 bss_changed |= BSS_CHANGED_QOS; 1946 } 1947 1948 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1949 1950 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1951 1952 /* - change_chanctx (if needed) 1953 * - event_callback 1954 */ 1955 1956 /* End mgd_complete_tx. */ 1957 if (lsta->in_mgd) { 1958 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1959 prep_tx_info.success = true; 1960 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1961 lsta->in_mgd = false; 1962 } 1963 1964 lkpi_hw_conf_idle(hw, false); 1965 1966 /* 1967 * And then: 1968 * - (more packets)? 1969 * - set_key 1970 * - set_default_unicast_key 1971 * - set_key (?) 1972 * - ipv6_addr_change (?) 1973 */ 1974 /* Prepare_multicast && configure_filter. */ 1975 lhw->update_mc = true; 1976 lkpi_update_mcast_filter(vap->iv_ic, true); 1977 1978 if (!ieee80211_node_is_authorized(ni)) { 1979 IMPROVE("net80211 does not consider node authorized"); 1980 } 1981 1982 #if defined(LKPI_80211_HT) 1983 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 1984 lkpi_sta_sync_ht_from_ni(sta, ni, NULL); 1985 #endif 1986 1987 /* Update sta_state (ASSOC to AUTHORIZED). */ 1988 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1989 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1990 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1991 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1992 if (error != 0) { 1993 IMPROVE("undo some changes?"); 1994 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 1995 "failed: %d\n", __func__, __LINE__, error); 1996 goto out; 1997 } 1998 1999 /* - drv_config (?) 2000 * - bss_info_changed 2001 * - set_rekey_data (?) 2002 * 2003 * And now we should be passing packets. 2004 */ 2005 IMPROVE("Need that bssid setting, and the keys"); 2006 2007 bss_changed = 0; 2008 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2009 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2010 2011 out: 2012 LKPI_80211_LHW_UNLOCK(lhw); 2013 IEEE80211_LOCK(vap->iv_ic); 2014 return (error); 2015 } 2016 2017 static int 2018 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2019 { 2020 int error; 2021 2022 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 2023 if (error == 0) 2024 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 2025 return (error); 2026 } 2027 2028 static int 2029 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2030 { 2031 struct lkpi_hw *lhw; 2032 struct ieee80211_hw *hw; 2033 struct lkpi_vif *lvif; 2034 struct ieee80211_vif *vif; 2035 struct ieee80211_node *ni; 2036 struct lkpi_sta *lsta; 2037 struct ieee80211_sta *sta; 2038 struct ieee80211_prep_tx_info prep_tx_info; 2039 #if 0 2040 enum ieee80211_bss_changed bss_changed; 2041 #endif 2042 int error; 2043 2044 lhw = vap->iv_ic->ic_softc; 2045 hw = LHW_TO_HW(lhw); 2046 lvif = VAP_TO_LVIF(vap); 2047 vif = LVIF_TO_VIF(lvif); 2048 2049 LKPI_80211_LVIF_LOCK(lvif); 2050 #ifdef LINUXKPI_DEBUG_80211 2051 /* XXX-BZ KASSERT later; state going down so no action. */ 2052 if (lvif->lvif_bss == NULL) 2053 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2054 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2055 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2056 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2057 lvif->lvif_bss_synched); 2058 #endif 2059 lsta = lvif->lvif_bss; 2060 LKPI_80211_LVIF_UNLOCK(lvif); 2061 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2062 "lvif %p vap %p\n", __func__, 2063 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2064 2065 ni = lsta->ni; /* Reference held for lvif_bss. */ 2066 sta = LSTA_TO_STA(lsta); 2067 2068 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2069 2070 IEEE80211_UNLOCK(vap->iv_ic); 2071 LKPI_80211_LHW_LOCK(lhw); 2072 2073 /* flush, drop. */ 2074 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2075 2076 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2077 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2078 !lsta->in_mgd) { 2079 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2080 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2081 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2082 lsta->in_mgd = true; 2083 } 2084 2085 LKPI_80211_LHW_UNLOCK(lhw); 2086 IEEE80211_LOCK(vap->iv_ic); 2087 2088 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2089 error = lvif->iv_newstate(vap, nstate, arg); 2090 if (error != 0) { 2091 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2092 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2093 goto outni; 2094 } 2095 2096 IEEE80211_UNLOCK(vap->iv_ic); 2097 LKPI_80211_LHW_LOCK(lhw); 2098 2099 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2100 2101 /* Wake tx queues to get packet(s) out. */ 2102 lkpi_wake_tx_queues(hw, sta, true, true); 2103 2104 /* flush, no drop */ 2105 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2106 2107 /* End mgd_complete_tx. */ 2108 if (lsta->in_mgd) { 2109 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2110 prep_tx_info.success = false; 2111 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2112 lsta->in_mgd = false; 2113 } 2114 2115 #if 0 2116 /* sync_rx_queues */ 2117 lkpi_80211_mo_sync_rx_queues(hw); 2118 2119 /* sta_pre_rcu_remove */ 2120 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2121 #endif 2122 2123 /* Take the station down. */ 2124 2125 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2126 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2127 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2128 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2129 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2130 if (error != 0) { 2131 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2132 "failed: %d\n", __func__, __LINE__, error); 2133 goto out; 2134 } 2135 2136 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2137 2138 /* Update sta_state (ASSOC to AUTH). */ 2139 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2140 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2141 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2142 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2143 if (error != 0) { 2144 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2145 "failed: %d\n", __func__, __LINE__, error); 2146 goto out; 2147 } 2148 2149 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2150 2151 #if 0 2152 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2153 lkpi_disassoc(sta, vif, lhw); 2154 #endif 2155 2156 error = EALREADY; 2157 out: 2158 LKPI_80211_LHW_UNLOCK(lhw); 2159 IEEE80211_LOCK(vap->iv_ic); 2160 outni: 2161 return (error); 2162 } 2163 2164 static int 2165 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2166 { 2167 struct lkpi_hw *lhw; 2168 struct ieee80211_hw *hw; 2169 struct lkpi_vif *lvif; 2170 struct ieee80211_vif *vif; 2171 struct ieee80211_node *ni; 2172 struct lkpi_sta *lsta; 2173 struct ieee80211_sta *sta; 2174 struct ieee80211_prep_tx_info prep_tx_info; 2175 enum ieee80211_bss_changed bss_changed; 2176 int error; 2177 2178 lhw = vap->iv_ic->ic_softc; 2179 hw = LHW_TO_HW(lhw); 2180 lvif = VAP_TO_LVIF(vap); 2181 vif = LVIF_TO_VIF(lvif); 2182 2183 IEEE80211_UNLOCK(vap->iv_ic); 2184 LKPI_80211_LHW_LOCK(lhw); 2185 2186 LKPI_80211_LVIF_LOCK(lvif); 2187 #ifdef LINUXKPI_DEBUG_80211 2188 /* XXX-BZ KASSERT later; state going down so no action. */ 2189 if (lvif->lvif_bss == NULL) 2190 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2191 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2192 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2193 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2194 lvif->lvif_bss_synched); 2195 #endif 2196 lsta = lvif->lvif_bss; 2197 LKPI_80211_LVIF_UNLOCK(lvif); 2198 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2199 "lvif %p vap %p\n", __func__, 2200 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2201 2202 ni = lsta->ni; /* Reference held for lvif_bss. */ 2203 sta = LSTA_TO_STA(lsta); 2204 2205 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2206 2207 /* flush, drop. */ 2208 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2209 2210 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2211 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2212 !lsta->in_mgd) { 2213 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2214 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2215 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2216 lsta->in_mgd = true; 2217 } 2218 2219 LKPI_80211_LHW_UNLOCK(lhw); 2220 IEEE80211_LOCK(vap->iv_ic); 2221 2222 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2223 error = lvif->iv_newstate(vap, nstate, arg); 2224 if (error != 0) { 2225 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2226 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2227 goto outni; 2228 } 2229 2230 IEEE80211_UNLOCK(vap->iv_ic); 2231 LKPI_80211_LHW_LOCK(lhw); 2232 2233 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2234 2235 /* Wake tx queues to get packet(s) out. */ 2236 lkpi_wake_tx_queues(hw, sta, true, true); 2237 2238 /* flush, no drop */ 2239 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2240 2241 /* End mgd_complete_tx. */ 2242 if (lsta->in_mgd) { 2243 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2244 prep_tx_info.success = false; 2245 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2246 lsta->in_mgd = false; 2247 } 2248 2249 /* sync_rx_queues */ 2250 lkpi_80211_mo_sync_rx_queues(hw); 2251 2252 /* sta_pre_rcu_remove */ 2253 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2254 2255 /* Take the station down. */ 2256 2257 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2258 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2259 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2260 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2261 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2262 if (error != 0) { 2263 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2264 "failed: %d\n", __func__, __LINE__, error); 2265 goto out; 2266 } 2267 2268 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2269 2270 /* Update sta_state (ASSOC to AUTH). */ 2271 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2272 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2273 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2274 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2275 if (error != 0) { 2276 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2277 "failed: %d\n", __func__, __LINE__, error); 2278 goto out; 2279 } 2280 2281 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2282 2283 /* Update sta and change state (from AUTH) to NONE. */ 2284 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2285 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 2286 "AUTH: %#x\n", __func__, lsta, lsta->state)); 2287 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2288 if (error != 0) { 2289 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2290 "failed: %d\n", __func__, __LINE__, error); 2291 goto out; 2292 } 2293 2294 bss_changed = 0; 2295 /* 2296 * Start updating bss info (bss_info_changed) (assoc, aid, ..). 2297 * 2298 * One would expect this to happen when going off AUTHORIZED. 2299 * See comment there; removes the sta from fw if not careful 2300 * (bss_info_changed() change is executed right away). 2301 * 2302 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 2303 * as otherwise drivers (iwlwifi at least) will silently not remove 2304 * the sta from the firmware and when we will add a new one trigger 2305 * a fw assert. 2306 * 2307 * The order which works best so far avoiding early removal or silent 2308 * non-removal seems to be (for iwlwifi::mld-mac80211.c cases; 2309 * the iwlwifi:mac80211.c case still to be tested): 2310 * 1) lkpi_disassoc(): set vif->cfg.assoc = false (aid=0 side effect here) 2311 * 2) call the last sta_state update -> IEEE80211_STA_NOTEXIST 2312 * (removes the sta given assoc is false) 2313 * 3) add the remaining BSS_CHANGED changes and call bss_info_changed() 2314 * 4) call unassign_vif_chanctx 2315 * 5) call lkpi_hw_conf_idle 2316 * 6) call remove_chanctx 2317 */ 2318 bss_changed |= lkpi_disassoc(sta, vif, lhw); 2319 2320 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2321 2322 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 2323 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2324 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 2325 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 2326 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 2327 if (error != 0) { 2328 IMPROVE("do we need to undo the chan ctx?"); 2329 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 2330 "failed: %d\n", __func__, __LINE__, error); 2331 goto out; 2332 } 2333 2334 lkpi_lsta_remove(lsta, lvif); 2335 2336 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 2337 2338 IMPROVE("Any bss_info changes to announce?"); 2339 vif->bss_conf.qos = 0; 2340 bss_changed |= BSS_CHANGED_QOS; 2341 vif->cfg.ssid_len = 0; 2342 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 2343 bss_changed |= BSS_CHANGED_BSSID; 2344 vif->bss_conf.use_short_preamble = false; 2345 vif->bss_conf.qos = false; 2346 /* XXX BSS_CHANGED_???? */ 2347 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2348 2349 LKPI_80211_LVIF_LOCK(lvif); 2350 /* Remove ni reference for this cache of lsta. */ 2351 lvif->lvif_bss = NULL; 2352 lvif->lvif_bss_synched = false; 2353 LKPI_80211_LVIF_UNLOCK(lvif); 2354 /* 2355 * The very last release the reference on the ni for the ni/lsta on 2356 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 2357 * and potentially freed. 2358 */ 2359 ieee80211_free_node(ni); 2360 2361 /* conf_tx */ 2362 2363 /* Take the chan ctx down. */ 2364 if (vif->chanctx_conf != NULL) { 2365 struct lkpi_chanctx *lchanctx; 2366 struct ieee80211_chanctx_conf *chanctx_conf; 2367 2368 chanctx_conf = vif->chanctx_conf; 2369 /* Remove vif context. */ 2370 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 2371 /* NB: vif->chanctx_conf is NULL now. */ 2372 2373 lkpi_hw_conf_idle(hw, true); 2374 2375 /* Remove chan ctx. */ 2376 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2377 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2378 free(lchanctx, M_LKPI80211); 2379 } 2380 2381 error = EALREADY; 2382 out: 2383 LKPI_80211_LHW_UNLOCK(lhw); 2384 IEEE80211_LOCK(vap->iv_ic); 2385 outni: 2386 return (error); 2387 } 2388 2389 static int 2390 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2391 { 2392 2393 return (lkpi_sta_run_to_init(vap, nstate, arg)); 2394 } 2395 2396 static int 2397 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2398 { 2399 int error; 2400 2401 error = lkpi_sta_run_to_init(vap, nstate, arg); 2402 if (error != 0 && error != EALREADY) 2403 return (error); 2404 2405 /* At this point iv_bss is long a new node! */ 2406 2407 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 2408 return (error); 2409 } 2410 2411 /* -------------------------------------------------------------------------- */ 2412 2413 /* 2414 * The matches the documented state changes in net80211::sta_newstate(). 2415 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 2416 * there are "invalid" (so there is a room for failure here). 2417 */ 2418 struct fsm_state { 2419 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 2420 enum ieee80211_state ostate; 2421 enum ieee80211_state nstate; 2422 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 2423 } sta_state_fsm[] = { 2424 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 2425 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 2426 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 2427 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 2428 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 2429 2430 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2431 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2432 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 2433 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 2434 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 2435 2436 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2437 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2438 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2439 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2440 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2441 2442 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2443 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2444 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2445 2446 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2447 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2448 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2449 2450 /* Dummy at the end without handler. */ 2451 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2452 }; 2453 2454 static int 2455 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2456 { 2457 struct ieee80211com *ic; 2458 struct lkpi_hw *lhw; 2459 struct lkpi_vif *lvif; 2460 struct ieee80211_vif *vif; 2461 struct fsm_state *s; 2462 enum ieee80211_state ostate; 2463 int error; 2464 2465 ic = vap->iv_ic; 2466 IEEE80211_LOCK_ASSERT(ic); 2467 ostate = vap->iv_state; 2468 2469 #ifdef LINUXKPI_DEBUG_80211 2470 if (linuxkpi_debug_80211 & D80211_TRACE) 2471 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2472 __func__, __LINE__, vap, nstate, arg); 2473 #endif 2474 2475 if (vap->iv_opmode == IEEE80211_M_STA) { 2476 2477 lhw = ic->ic_softc; 2478 lvif = VAP_TO_LVIF(vap); 2479 vif = LVIF_TO_VIF(lvif); 2480 2481 /* No need to replicate this in most state handlers. */ 2482 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2483 lkpi_stop_hw_scan(lhw, vif); 2484 2485 s = sta_state_fsm; 2486 2487 } else { 2488 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2489 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2490 return (ENOSYS); 2491 } 2492 2493 error = 0; 2494 for (; s->handler != NULL; s++) { 2495 if (ostate == s->ostate && nstate == s->nstate) { 2496 #ifdef LINUXKPI_DEBUG_80211 2497 if (linuxkpi_debug_80211 & D80211_TRACE) 2498 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2499 " %d (%s): arg %d.\n", __func__, 2500 ostate, ieee80211_state_name[ostate], 2501 nstate, ieee80211_state_name[nstate], arg); 2502 #endif 2503 error = s->handler(vap, nstate, arg); 2504 break; 2505 } 2506 } 2507 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2508 2509 if (s->handler == NULL) { 2510 IMPROVE("turn this into a KASSERT\n"); 2511 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2512 "%d (%s) -> %d (%s)\n", __func__, 2513 ostate, ieee80211_state_name[ostate], 2514 nstate, ieee80211_state_name[nstate]); 2515 return (ENOSYS); 2516 } 2517 2518 if (error == EALREADY) { 2519 #ifdef LINUXKPI_DEBUG_80211 2520 if (linuxkpi_debug_80211 & D80211_TRACE) 2521 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2522 "%d (%s): iv_newstate already handled: %d.\n", 2523 __func__, ostate, ieee80211_state_name[ostate], 2524 nstate, ieee80211_state_name[nstate], error); 2525 #endif 2526 return (0); 2527 } 2528 2529 if (error != 0) { 2530 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2531 "%d (%s) -> %d (%s)\n", __func__, error, 2532 ostate, ieee80211_state_name[ostate], 2533 nstate, ieee80211_state_name[nstate]); 2534 return (error); 2535 } 2536 2537 #ifdef LINUXKPI_DEBUG_80211 2538 if (linuxkpi_debug_80211 & D80211_TRACE) 2539 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2540 "calling net80211 parent\n", 2541 __func__, __LINE__, vap, nstate, arg); 2542 #endif 2543 2544 return (lvif->iv_newstate(vap, nstate, arg)); 2545 } 2546 2547 /* -------------------------------------------------------------------------- */ 2548 2549 /* 2550 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2551 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2552 * new node without us knowing and thus our ni/lsta are out of sync. 2553 */ 2554 static struct ieee80211_node * 2555 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2556 { 2557 struct lkpi_vif *lvif; 2558 struct ieee80211_node *rni; 2559 2560 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2561 2562 lvif = VAP_TO_LVIF(vap); 2563 2564 LKPI_80211_LVIF_LOCK(lvif); 2565 lvif->lvif_bss_synched = false; 2566 LKPI_80211_LVIF_UNLOCK(lvif); 2567 2568 rni = lvif->iv_update_bss(vap, ni); 2569 return (rni); 2570 } 2571 2572 #ifdef LKPI_80211_WME 2573 static int 2574 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2575 { 2576 struct ieee80211com *ic; 2577 struct ieee80211_hw *hw; 2578 struct lkpi_vif *lvif; 2579 struct ieee80211_vif *vif; 2580 struct chanAccParams chp; 2581 struct wmeParams wmeparr[WME_NUM_AC]; 2582 struct ieee80211_tx_queue_params txqp; 2583 enum ieee80211_bss_changed changed; 2584 int error; 2585 uint16_t ac; 2586 2587 IMPROVE(); 2588 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2589 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2590 2591 if (vap == NULL) 2592 return (0); 2593 2594 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2595 return (0); 2596 2597 if (lhw->ops->conf_tx == NULL) 2598 return (0); 2599 2600 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2601 lhw->update_wme = true; 2602 return (0); 2603 } 2604 lhw->update_wme = false; 2605 2606 ic = lhw->ic; 2607 ieee80211_wme_ic_getparams(ic, &chp); 2608 IEEE80211_LOCK(ic); 2609 for (ac = 0; ac < WME_NUM_AC; ac++) 2610 wmeparr[ac] = chp.cap_wmeParams[ac]; 2611 IEEE80211_UNLOCK(ic); 2612 2613 hw = LHW_TO_HW(lhw); 2614 lvif = VAP_TO_LVIF(vap); 2615 vif = LVIF_TO_VIF(lvif); 2616 2617 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2618 LKPI_80211_LHW_LOCK(lhw); 2619 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2620 struct wmeParams *wmep; 2621 2622 wmep = &wmeparr[ac]; 2623 bzero(&txqp, sizeof(txqp)); 2624 txqp.cw_min = wmep->wmep_logcwmin; 2625 txqp.cw_max = wmep->wmep_logcwmax; 2626 txqp.txop = wmep->wmep_txopLimit; 2627 txqp.aifs = wmep->wmep_aifsn; 2628 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2629 if (error != 0) 2630 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2631 __func__, ac, error); 2632 } 2633 LKPI_80211_LHW_UNLOCK(lhw); 2634 changed = BSS_CHANGED_QOS; 2635 if (!planned) 2636 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2637 2638 return (changed); 2639 } 2640 #endif 2641 2642 static int 2643 lkpi_ic_wme_update(struct ieee80211com *ic) 2644 { 2645 #ifdef LKPI_80211_WME 2646 struct ieee80211vap *vap; 2647 struct lkpi_hw *lhw; 2648 2649 IMPROVE("Use the per-VAP callback in net80211."); 2650 vap = TAILQ_FIRST(&ic->ic_vaps); 2651 if (vap == NULL) 2652 return (0); 2653 2654 lhw = ic->ic_softc; 2655 2656 lkpi_wme_update(lhw, vap, false); 2657 #endif 2658 return (0); /* unused */ 2659 } 2660 2661 static struct ieee80211vap * 2662 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2663 int unit, enum ieee80211_opmode opmode, int flags, 2664 const uint8_t bssid[IEEE80211_ADDR_LEN], 2665 const uint8_t mac[IEEE80211_ADDR_LEN]) 2666 { 2667 struct lkpi_hw *lhw; 2668 struct ieee80211_hw *hw; 2669 struct lkpi_vif *lvif; 2670 struct ieee80211vap *vap; 2671 struct ieee80211_vif *vif; 2672 struct ieee80211_tx_queue_params txqp; 2673 enum ieee80211_bss_changed changed; 2674 size_t len; 2675 int error, i; 2676 uint16_t ac; 2677 2678 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2679 return (NULL); 2680 2681 lhw = ic->ic_softc; 2682 hw = LHW_TO_HW(lhw); 2683 2684 len = sizeof(*lvif); 2685 len += hw->vif_data_size; /* vif->drv_priv */ 2686 2687 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2688 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2689 TAILQ_INIT(&lvif->lsta_head); 2690 lvif->lvif_bss = NULL; 2691 lvif->lvif_bss_synched = false; 2692 vap = LVIF_TO_VAP(lvif); 2693 2694 vif = LVIF_TO_VIF(lvif); 2695 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2696 vif->p2p = false; 2697 vif->probe_req_reg = false; 2698 vif->type = lkpi_opmode_to_vif_type(opmode); 2699 lvif->wdev.iftype = vif->type; 2700 /* Need to fill in other fields as well. */ 2701 IMPROVE(); 2702 2703 /* XXX-BZ hardcoded for now! */ 2704 #if 1 2705 vif->chanctx_conf = NULL; 2706 vif->bss_conf.vif = vif; 2707 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2708 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2709 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2710 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2711 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2712 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2713 vif->bss_conf.qos = false; 2714 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2715 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2716 vif->cfg.aid = 0; 2717 vif->cfg.assoc = false; 2718 vif->cfg.idle = true; 2719 vif->cfg.ps = false; 2720 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2721 /* 2722 * We need to initialize it to something as the bss_info_changed call 2723 * will try to copy from it in iwlwifi and NULL is a panic. 2724 * We will set the proper one in scan_to_auth() before being assoc. 2725 */ 2726 vif->bss_conf.bssid = ieee80211broadcastaddr; 2727 #endif 2728 #if 0 2729 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2730 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2731 vif->bss_conf.beacon_int = ic->ic_bintval; 2732 /* iwlwifi bug. */ 2733 if (vif->bss_conf.beacon_int < 16) 2734 vif->bss_conf.beacon_int = 16; 2735 #endif 2736 2737 /* Link Config */ 2738 vif->link_conf[0] = &vif->bss_conf; 2739 for (i = 0; i < nitems(vif->link_conf); i++) { 2740 IMPROVE("more than 1 link one day"); 2741 } 2742 2743 /* Setup queue defaults; driver may override in (*add_interface). */ 2744 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2745 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2746 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2747 else if (hw->queues >= IEEE80211_NUM_ACS) 2748 vif->hw_queue[i] = i; 2749 else 2750 vif->hw_queue[i] = 0; 2751 2752 /* Initialize the queue to running. Stopped? */ 2753 lvif->hw_queue_stopped[i] = false; 2754 } 2755 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2756 2757 IMPROVE(); 2758 2759 error = lkpi_80211_mo_start(hw); 2760 if (error != 0) { 2761 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2762 mtx_destroy(&lvif->mtx); 2763 free(lvif, M_80211_VAP); 2764 return (NULL); 2765 } 2766 2767 error = lkpi_80211_mo_add_interface(hw, vif); 2768 if (error != 0) { 2769 IMPROVE(); /* XXX-BZ mo_stop()? */ 2770 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2771 mtx_destroy(&lvif->mtx); 2772 free(lvif, M_80211_VAP); 2773 return (NULL); 2774 } 2775 2776 LKPI_80211_LHW_LVIF_LOCK(lhw); 2777 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2778 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2779 2780 /* Set bss_info. */ 2781 changed = 0; 2782 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2783 2784 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2785 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2786 LKPI_80211_LHW_LOCK(lhw); 2787 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2788 2789 bzero(&txqp, sizeof(txqp)); 2790 txqp.cw_min = 15; 2791 txqp.cw_max = 1023; 2792 txqp.txop = 0; 2793 txqp.aifs = 2; 2794 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2795 if (error != 0) 2796 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2797 __func__, ac, error); 2798 } 2799 LKPI_80211_LHW_UNLOCK(lhw); 2800 changed = BSS_CHANGED_QOS; 2801 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2802 2803 /* Force MC init. */ 2804 lkpi_update_mcast_filter(ic, true); 2805 2806 IMPROVE(); 2807 2808 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2809 2810 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2811 lvif->iv_newstate = vap->iv_newstate; 2812 vap->iv_newstate = lkpi_iv_newstate; 2813 lvif->iv_update_bss = vap->iv_update_bss; 2814 vap->iv_update_bss = lkpi_iv_update_bss; 2815 2816 /* Key management. */ 2817 if (lhw->ops->set_key != NULL) { 2818 #ifdef LKPI_80211_HW_CRYPTO 2819 vap->iv_key_set = lkpi_iv_key_set; 2820 vap->iv_key_delete = lkpi_iv_key_delete; 2821 #endif 2822 } 2823 2824 #ifdef LKPI_80211_HT 2825 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 2826 #endif 2827 2828 ieee80211_ratectl_init(vap); 2829 2830 /* Complete setup. */ 2831 ieee80211_vap_attach(vap, ieee80211_media_change, 2832 ieee80211_media_status, mac); 2833 2834 if (hw->max_listen_interval == 0) 2835 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2836 hw->conf.listen_interval = hw->max_listen_interval; 2837 ic->ic_set_channel(ic); 2838 2839 /* XXX-BZ do we need to be able to update these? */ 2840 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2841 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2842 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2843 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2844 /* any others? */ 2845 IMPROVE(); 2846 2847 return (vap); 2848 } 2849 2850 void 2851 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2852 { 2853 2854 wiphy_unregister(hw->wiphy); 2855 linuxkpi_ieee80211_ifdetach(hw); 2856 2857 IMPROVE(); 2858 } 2859 2860 void 2861 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2862 { 2863 2864 TODO(); 2865 } 2866 2867 static void 2868 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2869 { 2870 struct ieee80211com *ic; 2871 struct lkpi_hw *lhw; 2872 struct ieee80211_hw *hw; 2873 struct lkpi_vif *lvif; 2874 struct ieee80211_vif *vif; 2875 2876 lvif = VAP_TO_LVIF(vap); 2877 vif = LVIF_TO_VIF(lvif); 2878 ic = vap->iv_ic; 2879 lhw = ic->ic_softc; 2880 hw = LHW_TO_HW(lhw); 2881 2882 LKPI_80211_LHW_LVIF_LOCK(lhw); 2883 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2884 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2885 2886 ieee80211_ratectl_deinit(vap); 2887 ieee80211_vap_detach(vap); 2888 2889 IMPROVE("clear up other bits in this state"); 2890 2891 lkpi_80211_mo_remove_interface(hw, vif); 2892 2893 /* Single VAP, so we can do this here. */ 2894 lkpi_80211_mo_stop(hw); 2895 2896 mtx_destroy(&lvif->mtx); 2897 free(lvif, M_80211_VAP); 2898 } 2899 2900 static void 2901 lkpi_ic_update_mcast(struct ieee80211com *ic) 2902 { 2903 2904 lkpi_update_mcast_filter(ic, false); 2905 TRACEOK(); 2906 } 2907 2908 static void 2909 lkpi_ic_update_promisc(struct ieee80211com *ic) 2910 { 2911 2912 UNIMPLEMENTED; 2913 } 2914 2915 static void 2916 lkpi_ic_update_chw(struct ieee80211com *ic) 2917 { 2918 2919 UNIMPLEMENTED; 2920 } 2921 2922 /* Start / stop device. */ 2923 static void 2924 lkpi_ic_parent(struct ieee80211com *ic) 2925 { 2926 struct lkpi_hw *lhw; 2927 #ifdef HW_START_STOP 2928 struct ieee80211_hw *hw; 2929 int error; 2930 #endif 2931 bool start_all; 2932 2933 IMPROVE(); 2934 2935 lhw = ic->ic_softc; 2936 #ifdef HW_START_STOP 2937 hw = LHW_TO_HW(lhw); 2938 #endif 2939 start_all = false; 2940 2941 /* IEEE80211_UNLOCK(ic); */ 2942 LKPI_80211_LHW_LOCK(lhw); 2943 if (ic->ic_nrunning > 0) { 2944 #ifdef HW_START_STOP 2945 error = lkpi_80211_mo_start(hw); 2946 if (error == 0) 2947 #endif 2948 start_all = true; 2949 } else { 2950 #ifdef HW_START_STOP 2951 lkpi_80211_mo_stop(hw); 2952 #endif 2953 } 2954 LKPI_80211_LHW_UNLOCK(lhw); 2955 /* IEEE80211_LOCK(ic); */ 2956 2957 if (start_all) 2958 ieee80211_start_all(ic); 2959 } 2960 2961 bool 2962 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2963 size_t ie_ids_len) 2964 { 2965 int i; 2966 2967 for (i = 0; i < ie_ids_len; i++) { 2968 if (ie == *ie_ids) 2969 return (true); 2970 } 2971 2972 return (false); 2973 } 2974 2975 /* Return true if skipped; false if error. */ 2976 bool 2977 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2978 { 2979 size_t x; 2980 uint8_t l; 2981 2982 x = *xp; 2983 2984 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2985 __func__, x, ies_len, ies)); 2986 l = ies[x + 1]; 2987 x += 2 + l; 2988 2989 if (x > ies_len) 2990 return (false); 2991 2992 *xp = x; 2993 return (true); 2994 } 2995 2996 static uint8_t * 2997 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2998 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2999 { 3000 struct ieee80211_supported_band *supband; 3001 struct linuxkpi_ieee80211_channel *channels; 3002 struct ieee80211com *ic; 3003 const struct ieee80211_channel *chan; 3004 const struct ieee80211_rateset *rs; 3005 uint8_t *pb; 3006 int band, i; 3007 3008 ic = vap->iv_ic; 3009 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3010 if ((band_mask & (1 << band)) == 0) 3011 continue; 3012 3013 supband = hw->wiphy->bands[band]; 3014 /* 3015 * This should not happen; 3016 * band_mask is a bitmask of valid bands to scan on. 3017 */ 3018 if (supband == NULL || supband->n_channels == 0) 3019 continue; 3020 3021 /* Find a first channel to get the mode and rates from. */ 3022 channels = supband->channels; 3023 chan = NULL; 3024 for (i = 0; i < supband->n_channels; i++) { 3025 3026 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3027 continue; 3028 3029 chan = ieee80211_find_channel(ic, 3030 channels[i].center_freq, 0); 3031 if (chan != NULL) 3032 break; 3033 } 3034 3035 /* This really should not happen. */ 3036 if (chan == NULL) 3037 continue; 3038 3039 pb = p; 3040 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 3041 p = ieee80211_add_rates(p, rs); 3042 p = ieee80211_add_xrates(p, rs); 3043 3044 #if defined(LKPI_80211_HT) 3045 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 3046 struct ieee80211_channel *c; 3047 3048 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3049 vap->iv_flags_ht); 3050 p = ieee80211_add_htcap_ch(p, vap, c); 3051 } 3052 #endif 3053 #if defined(LKPI_80211_VHT) 3054 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 3055 struct ieee80211_channel *c; 3056 3057 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3058 vap->iv_flags_ht); 3059 c = ieee80211_vht_adjust_channel(ic, c, 3060 vap->iv_vht_flags); 3061 p = ieee80211_add_vhtcap_ch(p, vap, c); 3062 } 3063 #endif 3064 3065 scan_ies->ies[band] = pb; 3066 scan_ies->len[band] = p - pb; 3067 } 3068 3069 /* Add common_ies */ 3070 pb = p; 3071 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3072 vap->iv_wpa_ie != NULL) { 3073 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 3074 p += 2 + vap->iv_wpa_ie[1]; 3075 } 3076 if (vap->iv_appie_probereq != NULL) { 3077 memcpy(p, vap->iv_appie_probereq->ie_data, 3078 vap->iv_appie_probereq->ie_len); 3079 p += vap->iv_appie_probereq->ie_len; 3080 } 3081 scan_ies->common_ies = pb; 3082 scan_ies->common_ie_len = p - pb; 3083 3084 return (p); 3085 } 3086 3087 static void 3088 lkpi_ic_scan_start(struct ieee80211com *ic) 3089 { 3090 struct lkpi_hw *lhw; 3091 struct ieee80211_hw *hw; 3092 struct lkpi_vif *lvif; 3093 struct ieee80211_vif *vif; 3094 struct ieee80211_scan_state *ss; 3095 struct ieee80211vap *vap; 3096 int error; 3097 bool is_hw_scan; 3098 3099 lhw = ic->ic_softc; 3100 LKPI_80211_LHW_SCAN_LOCK(lhw); 3101 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3102 /* A scan is still running. */ 3103 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3104 return; 3105 } 3106 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3107 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3108 3109 ss = ic->ic_scan; 3110 vap = ss->ss_vap; 3111 if (vap->iv_state != IEEE80211_S_SCAN) { 3112 IMPROVE("We need to be able to scan if not in S_SCAN"); 3113 return; 3114 } 3115 3116 hw = LHW_TO_HW(lhw); 3117 if (!is_hw_scan) { 3118 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 3119 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3120 sw_scan: 3121 lvif = VAP_TO_LVIF(vap); 3122 vif = LVIF_TO_VIF(lvif); 3123 3124 if (vap->iv_state == IEEE80211_S_SCAN) 3125 lkpi_hw_conf_idle(hw, false); 3126 3127 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 3128 /* net80211::scan_start() handled PS for us. */ 3129 IMPROVE(); 3130 /* XXX Also means it is too late to flush queues? 3131 * need to check iv_sta_ps or overload? */ 3132 /* XXX want to adjust ss end time/ maxdwell? */ 3133 3134 } else { 3135 struct ieee80211_channel *c; 3136 struct ieee80211_scan_request *hw_req; 3137 struct linuxkpi_ieee80211_channel *lc, **cpp; 3138 struct cfg80211_ssid *ssids; 3139 struct cfg80211_scan_6ghz_params *s6gp; 3140 size_t chan_len, nchan, ssids_len, s6ghzlen; 3141 int band, i, ssid_count, common_ie_len; 3142 uint32_t band_mask; 3143 uint8_t *ie, *ieend; 3144 bool running; 3145 3146 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 3147 ssids_len = ssid_count * sizeof(*ssids); 3148 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 3149 3150 band_mask = 0; 3151 nchan = 0; 3152 for (i = ss->ss_next; i < ss->ss_last; i++) { 3153 nchan++; 3154 band = lkpi_net80211_chan_to_nl80211_band( 3155 ss->ss_chans[ss->ss_next + i]); 3156 band_mask |= (1 << band); 3157 } 3158 3159 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 3160 IMPROVE("individual band scans not yet supported, only scanning first band"); 3161 /* In theory net80211 should drive this. */ 3162 /* Probably we need to add local logic for now; 3163 * need to deal with scan_complete 3164 * and cancel_scan and keep local state. 3165 * Also cut the nchan down above. 3166 */ 3167 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 3168 } 3169 3170 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 3171 3172 common_ie_len = 0; 3173 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3174 vap->iv_wpa_ie != NULL) 3175 common_ie_len += vap->iv_wpa_ie[1]; 3176 if (vap->iv_appie_probereq != NULL) 3177 common_ie_len += vap->iv_appie_probereq->ie_len; 3178 3179 /* We would love to check this at an earlier stage... */ 3180 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 3181 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 3182 "wiphy->max_scan_ie_len %d\n", __func__, 3183 common_ie_len, hw->wiphy->max_scan_ie_len); 3184 } 3185 3186 hw_req = malloc(sizeof(*hw_req) + ssids_len + 3187 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 3188 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 3189 3190 hw_req->req.flags = 0; /* XXX ??? */ 3191 /* hw_req->req.wdev */ 3192 hw_req->req.wiphy = hw->wiphy; 3193 hw_req->req.no_cck = false; /* XXX */ 3194 #if 0 3195 /* This seems to pessimise default scanning behaviour. */ 3196 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 3197 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 3198 #endif 3199 #ifdef __notyet__ 3200 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 3201 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 3202 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 3203 #endif 3204 eth_broadcast_addr(hw_req->req.bssid); 3205 3206 hw_req->req.n_channels = nchan; 3207 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 3208 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 3209 for (i = 0; i < nchan; i++) { 3210 *(cpp + i) = 3211 (struct linuxkpi_ieee80211_channel *)(lc + i); 3212 } 3213 for (i = 0; i < nchan; i++) { 3214 c = ss->ss_chans[ss->ss_next + i]; 3215 3216 lc->hw_value = c->ic_ieee; 3217 lc->center_freq = c->ic_freq; /* XXX */ 3218 /* lc->flags */ 3219 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 3220 lc->max_power = c->ic_maxpower; 3221 /* lc-> ... */ 3222 lc++; 3223 } 3224 3225 hw_req->req.n_ssids = ssid_count; 3226 if (hw_req->req.n_ssids > 0) { 3227 ssids = (struct cfg80211_ssid *)lc; 3228 hw_req->req.ssids = ssids; 3229 for (i = 0; i < ssid_count; i++) { 3230 ssids->ssid_len = ss->ss_ssid[i].len; 3231 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 3232 ss->ss_ssid[i].len); 3233 ssids++; 3234 } 3235 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 3236 } else { 3237 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 3238 } 3239 3240 /* 6GHz one day. */ 3241 hw_req->req.n_6ghz_params = 0; 3242 hw_req->req.scan_6ghz_params = NULL; 3243 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 3244 /* s6gp->... */ 3245 3246 ie = ieend = (uint8_t *)s6gp; 3247 /* Copy per-band IEs, copy common IEs */ 3248 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 3249 hw_req->req.ie = ie; 3250 hw_req->req.ie_len = ieend - ie; 3251 3252 lvif = VAP_TO_LVIF(vap); 3253 vif = LVIF_TO_VIF(lvif); 3254 3255 LKPI_80211_LHW_SCAN_LOCK(lhw); 3256 /* Re-check under lock. */ 3257 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 3258 if (!running) { 3259 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 3260 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 3261 3262 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 3263 lhw->hw_req = hw_req; 3264 } 3265 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3266 if (running) { 3267 free(hw_req, M_LKPI80211); 3268 return; 3269 } 3270 3271 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 3272 if (error != 0) { 3273 ieee80211_cancel_scan(vap); 3274 3275 /* 3276 * ieee80211_scan_completed must be called in either 3277 * case of error or none. So let the free happen there 3278 * and only there. 3279 * That would be fine in theory but in practice drivers 3280 * behave differently: 3281 * ath10k does not return hw_scan until after scan_complete 3282 * and can then still return an error. 3283 * rtw88 can return 1 or -EBUSY without scan_complete 3284 * iwlwifi can return various errors before scan starts 3285 * ... 3286 * So we cannot rely on that behaviour and have to check 3287 * and balance between both code paths. 3288 */ 3289 LKPI_80211_LHW_SCAN_LOCK(lhw); 3290 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3291 free(lhw->hw_req, M_LKPI80211); 3292 lhw->hw_req = NULL; 3293 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3294 } 3295 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3296 3297 /* 3298 * XXX-SIGH magic number. 3299 * rtw88 has a magic "return 1" if offloading scan is 3300 * not possible. Fall back to sw scan in that case. 3301 */ 3302 if (error == 1) { 3303 LKPI_80211_LHW_SCAN_LOCK(lhw); 3304 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 3305 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3306 /* 3307 * XXX If we clear this now and later a driver 3308 * thinks it * can do a hw_scan again, we will 3309 * currently not re-enable it? 3310 */ 3311 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3312 ieee80211_start_scan(vap, 3313 IEEE80211_SCAN_ACTIVE | 3314 IEEE80211_SCAN_NOPICK | 3315 IEEE80211_SCAN_ONCE, 3316 IEEE80211_SCAN_FOREVER, 3317 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 3318 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 3319 vap->iv_des_nssid, vap->iv_des_ssid); 3320 goto sw_scan; 3321 } 3322 3323 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 3324 __func__, error); 3325 } 3326 } 3327 } 3328 3329 static void 3330 lkpi_ic_scan_end(struct ieee80211com *ic) 3331 { 3332 struct lkpi_hw *lhw; 3333 bool is_hw_scan; 3334 3335 lhw = ic->ic_softc; 3336 LKPI_80211_LHW_SCAN_LOCK(lhw); 3337 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 3338 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3339 return; 3340 } 3341 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3342 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3343 3344 if (!is_hw_scan) { 3345 struct ieee80211_scan_state *ss; 3346 struct ieee80211vap *vap; 3347 struct ieee80211_hw *hw; 3348 struct lkpi_vif *lvif; 3349 struct ieee80211_vif *vif; 3350 3351 ss = ic->ic_scan; 3352 vap = ss->ss_vap; 3353 hw = LHW_TO_HW(lhw); 3354 lvif = VAP_TO_LVIF(vap); 3355 vif = LVIF_TO_VIF(lvif); 3356 3357 lkpi_80211_mo_sw_scan_complete(hw, vif); 3358 3359 /* Send PS to stop buffering if n80211 does not for us? */ 3360 3361 if (vap->iv_state == IEEE80211_S_SCAN) 3362 lkpi_hw_conf_idle(hw, true); 3363 } 3364 } 3365 3366 static void 3367 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 3368 unsigned long maxdwell) 3369 { 3370 struct lkpi_hw *lhw; 3371 bool is_hw_scan; 3372 3373 lhw = ss->ss_ic->ic_softc; 3374 LKPI_80211_LHW_SCAN_LOCK(lhw); 3375 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3376 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3377 if (!is_hw_scan) 3378 lhw->ic_scan_curchan(ss, maxdwell); 3379 } 3380 3381 static void 3382 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 3383 { 3384 struct lkpi_hw *lhw; 3385 bool is_hw_scan; 3386 3387 lhw = ss->ss_ic->ic_softc; 3388 LKPI_80211_LHW_SCAN_LOCK(lhw); 3389 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3390 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3391 if (!is_hw_scan) 3392 lhw->ic_scan_mindwell(ss); 3393 } 3394 3395 static void 3396 lkpi_ic_set_channel(struct ieee80211com *ic) 3397 { 3398 struct lkpi_hw *lhw; 3399 struct ieee80211_hw *hw; 3400 struct ieee80211_channel *c; 3401 struct linuxkpi_ieee80211_channel *chan; 3402 int error; 3403 bool hw_scan_running; 3404 3405 lhw = ic->ic_softc; 3406 3407 /* If we do not support (*config)() save us the work. */ 3408 if (lhw->ops->config == NULL) 3409 return; 3410 3411 /* If we have a hw_scan running do not switch channels. */ 3412 LKPI_80211_LHW_SCAN_LOCK(lhw); 3413 hw_scan_running = 3414 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3415 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3416 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3417 if (hw_scan_running) 3418 return; 3419 3420 c = ic->ic_curchan; 3421 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3422 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3423 c, lhw->ops->config); 3424 return; 3425 } 3426 3427 chan = lkpi_find_lkpi80211_chan(lhw, c); 3428 if (chan == NULL) { 3429 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3430 c, chan); 3431 return; 3432 } 3433 3434 /* XXX max power for scanning? */ 3435 IMPROVE(); 3436 3437 hw = LHW_TO_HW(lhw); 3438 cfg80211_chandef_create(&hw->conf.chandef, chan, 3439 #ifdef LKPI_80211_HT 3440 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 3441 #endif 3442 NL80211_CHAN_NO_HT); 3443 3444 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3445 if (error != 0 && error != EOPNOTSUPP) { 3446 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3447 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3448 /* XXX should we unroll to the previous chandef? */ 3449 IMPROVE(); 3450 } else { 3451 /* Update radiotap channels as well. */ 3452 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3453 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3454 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3455 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3456 } 3457 3458 /* Currently PS is hard coded off! Not sure it belongs here. */ 3459 IMPROVE(); 3460 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3461 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3462 hw->conf.flags &= ~IEEE80211_CONF_PS; 3463 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3464 if (error != 0 && error != EOPNOTSUPP) 3465 ic_printf(ic, "ERROR: %s: config %#0x returned " 3466 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3467 error); 3468 } 3469 } 3470 3471 static struct ieee80211_node * 3472 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3473 const uint8_t mac[IEEE80211_ADDR_LEN]) 3474 { 3475 struct ieee80211com *ic; 3476 struct lkpi_hw *lhw; 3477 struct ieee80211_node *ni; 3478 struct ieee80211_hw *hw; 3479 struct lkpi_sta *lsta; 3480 3481 ic = vap->iv_ic; 3482 lhw = ic->ic_softc; 3483 3484 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3485 if (lhw->ic_node_alloc == NULL) 3486 return (NULL); 3487 3488 ni = lhw->ic_node_alloc(vap, mac); 3489 if (ni == NULL) 3490 return (NULL); 3491 3492 hw = LHW_TO_HW(lhw); 3493 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3494 if (lsta == NULL) { 3495 if (lhw->ic_node_free != NULL) 3496 lhw->ic_node_free(ni); 3497 return (NULL); 3498 } 3499 3500 return (ni); 3501 } 3502 3503 static int 3504 lkpi_ic_node_init(struct ieee80211_node *ni) 3505 { 3506 struct ieee80211com *ic; 3507 struct lkpi_hw *lhw; 3508 int error; 3509 3510 ic = ni->ni_ic; 3511 lhw = ic->ic_softc; 3512 3513 if (lhw->ic_node_init != NULL) { 3514 error = lhw->ic_node_init(ni); 3515 if (error != 0) 3516 return (error); 3517 } 3518 3519 /* XXX-BZ Sync other state over. */ 3520 IMPROVE(); 3521 3522 return (0); 3523 } 3524 3525 static void 3526 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3527 { 3528 struct ieee80211com *ic; 3529 struct lkpi_hw *lhw; 3530 3531 ic = ni->ni_ic; 3532 lhw = ic->ic_softc; 3533 3534 /* XXX-BZ remove from driver, ... */ 3535 IMPROVE(); 3536 3537 if (lhw->ic_node_cleanup != NULL) 3538 lhw->ic_node_cleanup(ni); 3539 } 3540 3541 static void 3542 lkpi_ic_node_free(struct ieee80211_node *ni) 3543 { 3544 struct ieee80211com *ic; 3545 struct lkpi_hw *lhw; 3546 struct lkpi_sta *lsta; 3547 3548 ic = ni->ni_ic; 3549 lhw = ic->ic_softc; 3550 lsta = ni->ni_drv_data; 3551 3552 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 3553 3554 /* 3555 * Pass in the original ni just in case of error we could check that 3556 * it is the same as lsta->ni. 3557 */ 3558 lkpi_lsta_free(lsta, ni); 3559 3560 if (lhw->ic_node_free != NULL) 3561 lhw->ic_node_free(ni); 3562 } 3563 3564 static int 3565 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3566 const struct ieee80211_bpf_params *params __unused) 3567 { 3568 struct lkpi_sta *lsta; 3569 3570 lsta = ni->ni_drv_data; 3571 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3572 if (!lsta->txq_ready) { 3573 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3574 /* 3575 * Free the mbuf (do NOT release ni ref for the m_pkthdr.rcvif! 3576 * ieee80211_raw_output() does that in case of error). 3577 */ 3578 m_free(m); 3579 return (ENETDOWN); 3580 } 3581 3582 /* Queue the packet and enqueue the task to handle it. */ 3583 mbufq_enqueue(&lsta->txq, m); 3584 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3585 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3586 3587 #ifdef LINUXKPI_DEBUG_80211 3588 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3589 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3590 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3591 mbufq_len(&lsta->txq)); 3592 #endif 3593 3594 return (0); 3595 } 3596 3597 static void 3598 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3599 { 3600 struct ieee80211_node *ni; 3601 #ifndef LKPI_80211_HW_CRYPTO 3602 struct ieee80211_frame *wh; 3603 #endif 3604 struct ieee80211_key *k; 3605 struct sk_buff *skb; 3606 struct ieee80211com *ic; 3607 struct lkpi_hw *lhw; 3608 struct ieee80211_hw *hw; 3609 struct lkpi_vif *lvif; 3610 struct ieee80211_vif *vif; 3611 struct ieee80211_channel *c; 3612 struct ieee80211_tx_control control; 3613 struct ieee80211_tx_info *info; 3614 struct ieee80211_sta *sta; 3615 struct ieee80211_hdr *hdr; 3616 struct lkpi_txq *ltxq; 3617 void *buf; 3618 uint8_t ac, tid; 3619 3620 M_ASSERTPKTHDR(m); 3621 #ifdef LINUXKPI_DEBUG_80211 3622 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3623 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3624 #endif 3625 3626 ni = lsta->ni; 3627 k = NULL; 3628 #ifndef LKPI_80211_HW_CRYPTO 3629 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3630 wh = mtod(m, struct ieee80211_frame *); 3631 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3632 /* Retrieve key for TX && do software encryption. */ 3633 k = ieee80211_crypto_encap(ni, m); 3634 if (k == NULL) { 3635 ieee80211_free_node(ni); 3636 m_freem(m); 3637 return; 3638 } 3639 } 3640 #endif 3641 3642 ic = ni->ni_ic; 3643 lhw = ic->ic_softc; 3644 hw = LHW_TO_HW(lhw); 3645 c = ni->ni_chan; 3646 3647 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3648 struct lkpi_radiotap_tx_hdr *rtap; 3649 3650 rtap = &lhw->rtap_tx; 3651 rtap->wt_flags = 0; 3652 if (k != NULL) 3653 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3654 if (m->m_flags & M_FRAG) 3655 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3656 IMPROVE(); 3657 rtap->wt_rate = 0; 3658 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3659 rtap->wt_chan_freq = htole16(c->ic_freq); 3660 rtap->wt_chan_flags = htole16(c->ic_flags); 3661 } 3662 3663 ieee80211_radiotap_tx(ni->ni_vap, m); 3664 } 3665 3666 /* 3667 * net80211 should handle hw->extra_tx_headroom. 3668 * Though for as long as we are copying we don't mind. 3669 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3670 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3671 */ 3672 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3673 if (skb == NULL) { 3674 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3675 ieee80211_free_node(ni); 3676 m_freem(m); 3677 return; 3678 } 3679 skb_reserve(skb, hw->extra_tx_headroom); 3680 3681 /* XXX-BZ we need a SKB version understanding mbuf. */ 3682 /* Save the mbuf for ieee80211_tx_complete(). */ 3683 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3684 skb->m = m; 3685 #if 0 3686 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3687 #else 3688 buf = skb_put(skb, m->m_pkthdr.len); 3689 m_copydata(m, 0, m->m_pkthdr.len, buf); 3690 #endif 3691 /* Save the ni. */ 3692 m->m_pkthdr.PH_loc.ptr = ni; 3693 3694 lvif = VAP_TO_LVIF(ni->ni_vap); 3695 vif = LVIF_TO_VIF(lvif); 3696 3697 hdr = (void *)skb->data; 3698 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3699 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3700 if (!ieee80211_is_data(hdr->frame_control)) { 3701 /* MGMT and CTRL frames go on TID 7/VO. */ 3702 skb->priority = 7; 3703 ac = IEEE80211_AC_VO; 3704 } else { 3705 /* Other non-QOS traffic goes to BE. */ 3706 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 3707 skb->priority = 0; 3708 ac = IEEE80211_AC_BE; 3709 } 3710 } else { 3711 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3712 ac = ieee80211e_up_to_ac[tid & 7]; 3713 } 3714 skb_set_queue_mapping(skb, ac); 3715 3716 info = IEEE80211_SKB_CB(skb); 3717 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3718 /* Slight delay; probably only happens on scanning so fine? */ 3719 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3720 c = ic->ic_curchan; 3721 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3722 info->hw_queue = vif->hw_queue[ac]; 3723 if (m->m_flags & M_EAPOL) 3724 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3725 info->control.vif = vif; 3726 /* XXX-BZ info->control.rates */ 3727 #ifdef __notyet__ 3728 #ifdef LKPI_80211_HT 3729 info->control.rts_cts_rate_idx= 3730 info->control.use_rts= /* RTS */ 3731 info->control.use_cts_prot= /* RTS/CTS*/ 3732 #endif 3733 #endif 3734 3735 sta = LSTA_TO_STA(lsta); 3736 #ifdef LKPI_80211_HW_CRYPTO 3737 info->control.hw_key = lsta->kc; 3738 #endif 3739 3740 IMPROVE(); 3741 3742 ltxq = NULL; 3743 if (!ieee80211_is_data_present(hdr->frame_control)) { 3744 if (vif->type == NL80211_IFTYPE_STATION && 3745 lsta->added_to_drv && 3746 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3747 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3748 } else if (lsta->added_to_drv && 3749 sta->txq[skb->priority] != NULL) { 3750 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3751 } 3752 if (ltxq == NULL) 3753 goto ops_tx; 3754 3755 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3756 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3757 3758 LKPI_80211_LTXQ_LOCK(ltxq); 3759 skb_queue_tail(<xq->skbq, skb); 3760 #ifdef LINUXKPI_DEBUG_80211 3761 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3762 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3763 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3764 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3765 __func__, __LINE__, 3766 curthread->td_tid, (unsigned int)ticks, 3767 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3768 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3769 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3770 #endif 3771 LKPI_80211_LTXQ_UNLOCK(ltxq); 3772 LKPI_80211_LHW_LOCK(lhw); 3773 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3774 LKPI_80211_LHW_UNLOCK(lhw); 3775 return; 3776 3777 ops_tx: 3778 #ifdef LINUXKPI_DEBUG_80211 3779 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3780 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3781 "TX ac %d prio %u qmap %u\n", 3782 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3783 skb, ac, skb->priority, skb->qmap); 3784 #endif 3785 memset(&control, 0, sizeof(control)); 3786 control.sta = sta; 3787 LKPI_80211_LHW_LOCK(lhw); 3788 lkpi_80211_mo_tx(hw, &control, skb); 3789 LKPI_80211_LHW_UNLOCK(lhw); 3790 } 3791 3792 static void 3793 lkpi_80211_txq_task(void *ctx, int pending) 3794 { 3795 struct lkpi_sta *lsta; 3796 struct mbufq mq; 3797 struct mbuf *m; 3798 3799 lsta = ctx; 3800 3801 #ifdef LINUXKPI_DEBUG_80211 3802 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3803 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3804 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3805 pending, mbufq_len(&lsta->txq)); 3806 #endif 3807 3808 mbufq_init(&mq, IFQ_MAXLEN); 3809 3810 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3811 /* 3812 * Do not re-check lsta->txq_ready here; we may have a pending 3813 * disassoc frame still. 3814 */ 3815 mbufq_concat(&mq, &lsta->txq); 3816 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3817 3818 m = mbufq_dequeue(&mq); 3819 while (m != NULL) { 3820 lkpi_80211_txq_tx_one(lsta, m); 3821 m = mbufq_dequeue(&mq); 3822 } 3823 } 3824 3825 static int 3826 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3827 { 3828 3829 /* XXX TODO */ 3830 IMPROVE(); 3831 3832 /* Quick and dirty cheating hack. */ 3833 struct ieee80211_node *ni; 3834 3835 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3836 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3837 } 3838 3839 #ifdef LKPI_80211_HT 3840 static int 3841 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3842 const uint8_t *frm, const uint8_t *efrm) 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_recv_action(ni, wh, frm, efrm)); 3853 } 3854 3855 static int 3856 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 3857 { 3858 struct ieee80211com *ic; 3859 struct lkpi_hw *lhw; 3860 3861 ic = ni->ni_ic; 3862 lhw = ic->ic_softc; 3863 3864 IMPROVE_HT(); 3865 3866 return (lhw->ic_send_action(ni, category, action, sa)); 3867 } 3868 3869 3870 static int 3871 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3872 { 3873 struct ieee80211com *ic; 3874 struct lkpi_hw *lhw; 3875 3876 ic = ni->ni_ic; 3877 lhw = ic->ic_softc; 3878 3879 IMPROVE_HT(); 3880 3881 return (lhw->ic_ampdu_enable(ni, tap)); 3882 } 3883 3884 static int 3885 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3886 int dialogtoken, int baparamset, int batimeout) 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 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 3897 } 3898 3899 static int 3900 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3901 int status, int baparamset, int batimeout) 3902 { 3903 struct ieee80211com *ic; 3904 struct lkpi_hw *lhw; 3905 3906 ic = ni->ni_ic; 3907 lhw = ic->ic_softc; 3908 3909 IMPROVE_HT(); 3910 3911 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 3912 } 3913 3914 static void 3915 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 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_addba_stop(ni, tap); 3926 } 3927 3928 static void 3929 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3930 { 3931 struct ieee80211com *ic; 3932 struct lkpi_hw *lhw; 3933 3934 ic = ni->ni_ic; 3935 lhw = ic->ic_softc; 3936 3937 IMPROVE_HT(); 3938 3939 lhw->ic_addba_response_timeout(ni, tap); 3940 } 3941 3942 static void 3943 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3944 int status) 3945 { 3946 struct ieee80211com *ic; 3947 struct lkpi_hw *lhw; 3948 3949 ic = ni->ni_ic; 3950 lhw = ic->ic_softc; 3951 3952 IMPROVE_HT(); 3953 3954 lhw->ic_bar_response(ni, tap, status); 3955 } 3956 3957 static int 3958 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 3959 int baparamset, int batimeout, int baseqctl) 3960 { 3961 struct ieee80211com *ic; 3962 struct lkpi_hw *lhw; 3963 struct ieee80211_hw *hw; 3964 struct ieee80211vap *vap; 3965 struct lkpi_vif *lvif; 3966 struct ieee80211_vif *vif; 3967 struct lkpi_sta *lsta; 3968 struct ieee80211_sta *sta; 3969 struct ieee80211_ampdu_params params; 3970 int error; 3971 3972 ic = ni->ni_ic; 3973 lhw = ic->ic_softc; 3974 hw = LHW_TO_HW(lhw); 3975 vap = ni->ni_vap; 3976 lvif = VAP_TO_LVIF(vap); 3977 vif = LVIF_TO_VIF(lvif); 3978 lsta = ni->ni_drv_data; 3979 sta = LSTA_TO_STA(lsta); 3980 3981 params.sta = sta; 3982 params.action = IEEE80211_AMPDU_RX_START; 3983 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 3984 if (params.buf_size == 0) 3985 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 3986 else 3987 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 3988 if (params.buf_size > hw->max_rx_aggregation_subframes) 3989 params.buf_size = hw->max_rx_aggregation_subframes; 3990 params.timeout = le16toh(batimeout); 3991 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 3992 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 3993 params.amsdu = false; 3994 3995 IMPROVE_HT("Do we need to distinguish based on SUPPORTS_REORDERING_BUFFER?"); 3996 3997 /* This may call kalloc. Make sure we can sleep. */ 3998 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 3999 if (error != 0) { 4000 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4001 __func__, error, ni, rap); 4002 return (error); 4003 } 4004 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 4005 4006 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 4007 return (error); 4008 } 4009 4010 static void 4011 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 4012 { 4013 struct ieee80211com *ic; 4014 struct lkpi_hw *lhw; 4015 struct ieee80211_hw *hw; 4016 struct ieee80211vap *vap; 4017 struct lkpi_vif *lvif; 4018 struct ieee80211_vif *vif; 4019 struct lkpi_sta *lsta; 4020 struct ieee80211_sta *sta; 4021 struct ieee80211_ampdu_params params; 4022 int error; 4023 uint8_t tid; 4024 4025 ic = ni->ni_ic; 4026 lhw = ic->ic_softc; 4027 4028 /* 4029 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 4030 * we did not START. Some drivers pass it down to firmware which will 4031 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 4032 * ieee80211_ht_node_init() amongst others which will iterate over all 4033 * tid and call ic_ampdu_rx_stop() unconditionally. 4034 * XXX net80211 should probably be more "gentle" in these cases and 4035 * track some state itself. 4036 */ 4037 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 4038 goto net80211_only; 4039 4040 hw = LHW_TO_HW(lhw); 4041 vap = ni->ni_vap; 4042 lvif = VAP_TO_LVIF(vap); 4043 vif = LVIF_TO_VIF(lvif); 4044 lsta = ni->ni_drv_data; 4045 sta = LSTA_TO_STA(lsta); 4046 4047 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 4048 for (tid = 0; tid < WME_NUM_TID; tid++) { 4049 if (&ni->ni_rx_ampdu[tid] == rap) 4050 break; 4051 } 4052 4053 params.sta = sta; 4054 params.action = IEEE80211_AMPDU_RX_STOP; 4055 params.buf_size = 0; 4056 params.timeout = 0; 4057 params.ssn = 0; 4058 params.tid = tid; 4059 params.amsdu = false; 4060 4061 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4062 if (error != 0) 4063 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4064 __func__, error, ni, rap); 4065 4066 net80211_only: 4067 lhw->ic_ampdu_rx_stop(ni, rap); 4068 } 4069 #endif 4070 4071 static void 4072 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 4073 uint8_t *bands, int *chan_flags, enum nl80211_band band) 4074 { 4075 #ifdef LKPI_80211_HT 4076 struct ieee80211_sta_ht_cap *ht_cap; 4077 4078 ht_cap = &hw->wiphy->bands[band]->ht_cap; 4079 if (!ht_cap->ht_supported) 4080 return; 4081 4082 switch (band) { 4083 case NL80211_BAND_2GHZ: 4084 setbit(bands, IEEE80211_MODE_11NG); 4085 break; 4086 case NL80211_BAND_5GHZ: 4087 setbit(bands, IEEE80211_MODE_11NA); 4088 break; 4089 default: 4090 IMPROVE("Unsupported band %d", band); 4091 return; 4092 } 4093 4094 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 4095 4096 /* 4097 * Rather than manually checking each flag and 4098 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 4099 * simply copy the 16bits. 4100 */ 4101 ic->ic_htcaps |= ht_cap->cap; 4102 4103 /* Then deal with the other flags. */ 4104 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 4105 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 4106 #ifdef __notyet__ 4107 if (ieee80211_hw_check(hw, TX_AMSDU)) 4108 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 4109 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 4110 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 4111 IEEE80211_HTC_TX_AMSDU_AMPDU); 4112 #endif 4113 4114 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 4115 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_OFF; 4116 4117 /* Only add HT40 channels if supported. */ 4118 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 4119 chan_flags != NULL) 4120 *chan_flags |= NET80211_CBW_FLAG_HT40; 4121 #endif 4122 } 4123 4124 static void 4125 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 4126 int *n, struct ieee80211_channel *c) 4127 { 4128 struct lkpi_hw *lhw; 4129 struct ieee80211_hw *hw; 4130 struct linuxkpi_ieee80211_channel *channels; 4131 uint8_t bands[IEEE80211_MODE_BYTES]; 4132 int chan_flags, error, i, nchans; 4133 4134 /* Channels */ 4135 lhw = ic->ic_softc; 4136 hw = LHW_TO_HW(lhw); 4137 4138 /* NL80211_BAND_2GHZ */ 4139 nchans = 0; 4140 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 4141 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 4142 if (nchans > 0) { 4143 memset(bands, 0, sizeof(bands)); 4144 chan_flags = 0; 4145 setbit(bands, IEEE80211_MODE_11B); 4146 /* XXX-BZ unclear how to check for 11g. */ 4147 4148 IMPROVE("the bitrates may have flags?"); 4149 setbit(bands, IEEE80211_MODE_11G); 4150 4151 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4152 NL80211_BAND_2GHZ); 4153 4154 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 4155 for (i = 0; i < nchans && *n < maxchan; i++) { 4156 uint32_t nflags = 0; 4157 int cflags = chan_flags; 4158 4159 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4160 ic_printf(ic, "%s: Skipping disabled chan " 4161 "[%u/%u/%#x]\n", __func__, 4162 channels[i].hw_value, 4163 channels[i].center_freq, channels[i].flags); 4164 continue; 4165 } 4166 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4167 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4168 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4169 nflags |= IEEE80211_CHAN_DFS; 4170 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4171 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4172 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4173 cflags &= ~NET80211_CBW_FLAG_VHT80; 4174 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 4175 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4176 cflags &= ~NET80211_CBW_FLAG_HT40; 4177 4178 error = ieee80211_add_channel_cbw(c, maxchan, n, 4179 channels[i].hw_value, channels[i].center_freq, 4180 channels[i].max_power, 4181 nflags, bands, cflags); 4182 /* net80211::ENOBUFS: *n >= maxchans */ 4183 if (error != 0 && error != ENOBUFS) 4184 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4185 "returned error %d\n", 4186 __func__, channels[i].hw_value, 4187 channels[i].center_freq, channels[i].flags, 4188 nflags, chan_flags, cflags, error); 4189 if (error != 0) 4190 break; 4191 } 4192 } 4193 4194 /* NL80211_BAND_5GHZ */ 4195 nchans = 0; 4196 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 4197 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 4198 if (nchans > 0) { 4199 memset(bands, 0, sizeof(bands)); 4200 chan_flags = 0; 4201 setbit(bands, IEEE80211_MODE_11A); 4202 4203 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4204 NL80211_BAND_5GHZ); 4205 4206 #ifdef LKPI_80211_VHT 4207 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 4208 4209 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 4210 ic->ic_vht_cap.vht_cap_info = 4211 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 4212 4213 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 4214 chan_flags |= NET80211_CBW_FLAG_VHT80; 4215 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 4216 ic->ic_vht_cap.vht_cap_info)) 4217 chan_flags |= NET80211_CBW_FLAG_VHT160; 4218 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 4219 ic->ic_vht_cap.vht_cap_info)) 4220 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 4221 } 4222 #endif 4223 4224 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 4225 for (i = 0; i < nchans && *n < maxchan; i++) { 4226 uint32_t nflags = 0; 4227 int cflags = chan_flags; 4228 4229 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4230 ic_printf(ic, "%s: Skipping disabled chan " 4231 "[%u/%u/%#x]\n", __func__, 4232 channels[i].hw_value, 4233 channels[i].center_freq, channels[i].flags); 4234 continue; 4235 } 4236 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4237 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4238 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4239 nflags |= IEEE80211_CHAN_DFS; 4240 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4241 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4242 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4243 cflags &= ~NET80211_CBW_FLAG_VHT80; 4244 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 4245 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4246 cflags &= ~NET80211_CBW_FLAG_HT40; 4247 4248 error = ieee80211_add_channel_cbw(c, maxchan, n, 4249 channels[i].hw_value, channels[i].center_freq, 4250 channels[i].max_power, 4251 nflags, bands, cflags); 4252 /* net80211::ENOBUFS: *n >= maxchans */ 4253 if (error != 0 && error != ENOBUFS) 4254 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4255 "returned error %d\n", 4256 __func__, channels[i].hw_value, 4257 channels[i].center_freq, channels[i].flags, 4258 nflags, chan_flags, cflags, error); 4259 if (error != 0) 4260 break; 4261 } 4262 } 4263 } 4264 4265 static void * 4266 lkpi_ieee80211_ifalloc(void) 4267 { 4268 struct ieee80211com *ic; 4269 4270 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 4271 if (ic == NULL) 4272 return (NULL); 4273 4274 /* Setting these happens later when we have device information. */ 4275 ic->ic_softc = NULL; 4276 ic->ic_name = "linuxkpi"; 4277 4278 return (ic); 4279 } 4280 4281 struct ieee80211_hw * 4282 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 4283 { 4284 struct ieee80211_hw *hw; 4285 struct lkpi_hw *lhw; 4286 struct wiphy *wiphy; 4287 int ac; 4288 4289 /* Get us and the driver data also allocated. */ 4290 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 4291 if (wiphy == NULL) 4292 return (NULL); 4293 4294 lhw = wiphy_priv(wiphy); 4295 lhw->ops = ops; 4296 4297 LKPI_80211_LHW_LOCK_INIT(lhw); 4298 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 4299 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 4300 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 4301 TAILQ_INIT(&lhw->lvif_head); 4302 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4303 lhw->txq_generation[ac] = 1; 4304 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 4305 } 4306 4307 /* Deferred RX path. */ 4308 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 4309 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 4310 mbufq_init(&lhw->rxq, IFQ_MAXLEN); 4311 lhw->rxq_stopped = false; 4312 4313 /* 4314 * XXX-BZ TODO make sure there is a "_null" function to all ops 4315 * not initialized. 4316 */ 4317 hw = LHW_TO_HW(lhw); 4318 hw->wiphy = wiphy; 4319 hw->conf.flags |= IEEE80211_CONF_IDLE; 4320 hw->priv = (void *)(lhw + 1); 4321 4322 /* BSD Specific. */ 4323 lhw->ic = lkpi_ieee80211_ifalloc(); 4324 if (lhw->ic == NULL) { 4325 ieee80211_free_hw(hw); 4326 return (NULL); 4327 } 4328 4329 IMPROVE(); 4330 4331 return (hw); 4332 } 4333 4334 void 4335 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 4336 { 4337 struct lkpi_hw *lhw; 4338 struct mbuf *m; 4339 4340 lhw = HW_TO_LHW(hw); 4341 free(lhw->ic, M_LKPI80211); 4342 lhw->ic = NULL; 4343 4344 /* 4345 * Drain the deferred RX path. 4346 */ 4347 LKPI_80211_LHW_RXQ_LOCK(lhw); 4348 lhw->rxq_stopped = true; 4349 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4350 4351 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 4352 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 4353 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 4354 4355 /* Flush mbufq (make sure to release ni refs!). */ 4356 m = mbufq_dequeue(&lhw->rxq); 4357 while (m != NULL) { 4358 struct m_tag *mtag; 4359 4360 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4361 if (mtag != NULL) { 4362 struct lkpi_80211_tag_rxni *rxni; 4363 4364 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4365 ieee80211_free_node(rxni->ni); 4366 } 4367 m_freem(m); 4368 m = mbufq_dequeue(&lhw->rxq); 4369 } 4370 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 4371 __func__, lhw, mbufq_len(&lhw->rxq))); 4372 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 4373 4374 /* Cleanup more of lhw here or in wiphy_free()? */ 4375 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 4376 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 4377 LKPI_80211_LHW_LOCK_DESTROY(lhw); 4378 sx_destroy(&lhw->lvif_sx); 4379 IMPROVE(); 4380 } 4381 4382 void 4383 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 4384 { 4385 struct lkpi_hw *lhw; 4386 struct ieee80211com *ic; 4387 4388 lhw = HW_TO_LHW(hw); 4389 ic = lhw->ic; 4390 4391 /* Now set a proper name before ieee80211_ifattach(). */ 4392 ic->ic_softc = lhw; 4393 ic->ic_name = name; 4394 4395 /* XXX-BZ do we also need to set wiphy name? */ 4396 } 4397 4398 struct ieee80211_hw * 4399 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 4400 { 4401 struct lkpi_hw *lhw; 4402 4403 lhw = wiphy_priv(wiphy); 4404 return (LHW_TO_HW(lhw)); 4405 } 4406 4407 static void 4408 lkpi_radiotap_attach(struct lkpi_hw *lhw) 4409 { 4410 struct ieee80211com *ic; 4411 4412 ic = lhw->ic; 4413 ieee80211_radiotap_attach(ic, 4414 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 4415 LKPI_RTAP_TX_FLAGS_PRESENT, 4416 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 4417 LKPI_RTAP_RX_FLAGS_PRESENT); 4418 } 4419 4420 int 4421 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 4422 { 4423 struct ieee80211com *ic; 4424 struct lkpi_hw *lhw; 4425 int band, i; 4426 4427 lhw = HW_TO_LHW(hw); 4428 ic = lhw->ic; 4429 4430 /* We do it this late as wiphy->dev should be set for the name. */ 4431 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 4432 if (lhw->workq == NULL) 4433 return (-EAGAIN); 4434 4435 /* XXX-BZ figure this out how they count his... */ 4436 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 4437 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4438 hw->wiphy->perm_addr); 4439 } else if (hw->wiphy->n_addresses > 0) { 4440 /* We take the first one. */ 4441 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4442 hw->wiphy->addresses[0].addr); 4443 } else { 4444 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 4445 } 4446 4447 #ifdef __not_yet__ 4448 /* See comment in lkpi_80211_txq_tx_one(). */ 4449 ic->ic_headroom = hw->extra_tx_headroom; 4450 #endif 4451 4452 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 4453 ic->ic_opmode = IEEE80211_M_STA; 4454 4455 /* Set device capabilities. */ 4456 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 4457 ic->ic_caps = 4458 IEEE80211_C_STA | 4459 IEEE80211_C_MONITOR | 4460 IEEE80211_C_WPA | /* WPA/RSN */ 4461 #ifdef LKPI_80211_WME 4462 IEEE80211_C_WME | 4463 #endif 4464 #if 0 4465 IEEE80211_C_PMGT | 4466 #endif 4467 IEEE80211_C_SHSLOT | /* short slot time supported */ 4468 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 4469 ; 4470 #if 0 4471 /* Scanning is a different kind of beast to re-work. */ 4472 ic->ic_caps |= IEEE80211_C_BGSCAN; 4473 #endif 4474 if (lhw->ops->hw_scan) { 4475 /* 4476 * Advertise full-offload scanning. 4477 * 4478 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4479 * we essentially disable hw_scan for all drivers not setting 4480 * the flag. 4481 */ 4482 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4483 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4484 } 4485 4486 /* 4487 * The wiphy variables report bitmasks of avail antennas. 4488 * (*get_antenna) get the current bitmask sets which can be 4489 * altered by (*set_antenna) for some drivers. 4490 * XXX-BZ will the count alone do us much good long-term in net80211? 4491 */ 4492 if (hw->wiphy->available_antennas_rx || 4493 hw->wiphy->available_antennas_tx) { 4494 uint32_t rxs, txs; 4495 4496 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 4497 ic->ic_rxstream = bitcount32(rxs); 4498 ic->ic_txstream = bitcount32(txs); 4499 } 4500 } 4501 4502 ic->ic_cryptocaps = 0; 4503 #ifdef LKPI_80211_HW_CRYPTO 4504 if (hw->wiphy->n_cipher_suites > 0) { 4505 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 4506 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 4507 hw->wiphy->cipher_suites[i]); 4508 } 4509 #endif 4510 4511 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 4512 ic->ic_channels); 4513 4514 ieee80211_ifattach(ic); 4515 4516 ic->ic_update_mcast = lkpi_ic_update_mcast; 4517 ic->ic_update_promisc = lkpi_ic_update_promisc; 4518 ic->ic_update_chw = lkpi_ic_update_chw; 4519 ic->ic_parent = lkpi_ic_parent; 4520 ic->ic_scan_start = lkpi_ic_scan_start; 4521 ic->ic_scan_end = lkpi_ic_scan_end; 4522 ic->ic_set_channel = lkpi_ic_set_channel; 4523 ic->ic_transmit = lkpi_ic_transmit; 4524 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 4525 ic->ic_vap_create = lkpi_ic_vap_create; 4526 ic->ic_vap_delete = lkpi_ic_vap_delete; 4527 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 4528 ic->ic_wme.wme_update = lkpi_ic_wme_update; 4529 4530 lhw->ic_scan_curchan = ic->ic_scan_curchan; 4531 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 4532 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 4533 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 4534 4535 lhw->ic_node_alloc = ic->ic_node_alloc; 4536 ic->ic_node_alloc = lkpi_ic_node_alloc; 4537 lhw->ic_node_init = ic->ic_node_init; 4538 ic->ic_node_init = lkpi_ic_node_init; 4539 lhw->ic_node_cleanup = ic->ic_node_cleanup; 4540 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 4541 lhw->ic_node_free = ic->ic_node_free; 4542 ic->ic_node_free = lkpi_ic_node_free; 4543 4544 #ifdef LKPI_80211_HT 4545 lhw->ic_recv_action = ic->ic_recv_action; 4546 ic->ic_recv_action = lkpi_ic_recv_action; 4547 lhw->ic_send_action = ic->ic_send_action; 4548 ic->ic_send_action = lkpi_ic_send_action; 4549 4550 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 4551 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 4552 4553 lhw->ic_addba_request = ic->ic_addba_request; 4554 ic->ic_addba_request = lkpi_ic_addba_request; 4555 lhw->ic_addba_response = ic->ic_addba_response; 4556 ic->ic_addba_response = lkpi_ic_addba_response; 4557 lhw->ic_addba_stop = ic->ic_addba_stop; 4558 ic->ic_addba_stop = lkpi_ic_addba_stop; 4559 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 4560 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 4561 4562 lhw->ic_bar_response = ic->ic_bar_response; 4563 ic->ic_bar_response = lkpi_ic_bar_response; 4564 4565 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 4566 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 4567 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 4568 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 4569 #endif 4570 4571 lkpi_radiotap_attach(lhw); 4572 4573 /* 4574 * Assign the first possible channel for now; seems Realtek drivers 4575 * expect one. 4576 * Also remember the amount of bands we support and the most rates 4577 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 4578 */ 4579 lhw->supbands = lhw->max_rates = 0; 4580 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4581 struct ieee80211_supported_band *supband; 4582 struct linuxkpi_ieee80211_channel *channels; 4583 4584 supband = hw->wiphy->bands[band]; 4585 if (supband == NULL || supband->n_channels == 0) 4586 continue; 4587 4588 lhw->supbands++; 4589 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 4590 4591 /* If we have a channel, we need to keep counting supbands. */ 4592 if (hw->conf.chandef.chan != NULL) 4593 continue; 4594 4595 channels = supband->channels; 4596 for (i = 0; i < supband->n_channels; i++) { 4597 4598 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4599 continue; 4600 4601 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 4602 #ifdef LKPI_80211_HT 4603 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 4604 #endif 4605 NL80211_CHAN_NO_HT); 4606 break; 4607 } 4608 } 4609 4610 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 4611 4612 /* Make sure we do not support more than net80211 is willing to take. */ 4613 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 4614 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 4615 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 4616 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 4617 } 4618 4619 /* 4620 * The maximum supported bitrates on any band + size for 4621 * DSSS Parameter Set give our per-band IE size. 4622 * SSID is the responsibility of the driver and goes on the side. 4623 * The user specified bits coming from the vap go into the 4624 * "common ies" fields. 4625 */ 4626 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 4627 if (lhw->max_rates > IEEE80211_RATE_SIZE) 4628 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 4629 4630 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 4631 /* 4632 * net80211 does not seem to support the DSSS Parameter Set but 4633 * some of the drivers insert it so calculate the extra fixed 4634 * space in. 4635 */ 4636 lhw->scan_ie_len += 2 + 1; 4637 } 4638 4639 #if defined(LKPI_80211_HT) 4640 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 4641 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 4642 #endif 4643 #if defined(LKPI_80211_VHT) 4644 if ((ic->ic_flags_ext & IEEE80211_FEXT_VHT) != 0) 4645 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 4646 #endif 4647 4648 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 4649 if (hw->wiphy->max_scan_ie_len > 0) { 4650 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 4651 goto err; 4652 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 4653 } 4654 4655 if (bootverbose) 4656 ieee80211_announce(ic); 4657 4658 return (0); 4659 err: 4660 IMPROVE("TODO FIXME CLEANUP"); 4661 return (-EAGAIN); 4662 } 4663 4664 void 4665 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 4666 { 4667 struct lkpi_hw *lhw; 4668 struct ieee80211com *ic; 4669 4670 lhw = HW_TO_LHW(hw); 4671 ic = lhw->ic; 4672 ieee80211_ifdetach(ic); 4673 } 4674 4675 void 4676 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 4677 enum ieee80211_iface_iter flags, 4678 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 4679 void *arg) 4680 { 4681 struct lkpi_hw *lhw; 4682 struct lkpi_vif *lvif; 4683 struct ieee80211_vif *vif; 4684 bool active, atomic, nin_drv; 4685 4686 lhw = HW_TO_LHW(hw); 4687 4688 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 4689 IEEE80211_IFACE_ITER_RESUME_ALL| 4690 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 4691 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 4692 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 4693 __func__, flags); 4694 } 4695 4696 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 4697 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 4698 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 4699 4700 if (atomic) 4701 LKPI_80211_LHW_LVIF_LOCK(lhw); 4702 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4703 struct ieee80211vap *vap; 4704 4705 vif = LVIF_TO_VIF(lvif); 4706 4707 /* 4708 * If we want "active" interfaces, we need to distinguish on 4709 * whether the driver knows about them or not to be able to 4710 * handle the "resume" case correctly. Skip the ones the 4711 * driver does not know about. 4712 */ 4713 if (active && !lvif->added_to_drv && 4714 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 4715 continue; 4716 4717 /* 4718 * If we shall skip interfaces not added to the driver do so 4719 * if we haven't yet. 4720 */ 4721 if (nin_drv && !lvif->added_to_drv) 4722 continue; 4723 4724 /* 4725 * Run the iterator function if we are either not asking 4726 * asking for active only or if the VAP is "running". 4727 */ 4728 /* XXX-BZ probably should have state in the lvif as well. */ 4729 vap = LVIF_TO_VAP(lvif); 4730 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 4731 iterfunc(arg, vif->addr, vif); 4732 } 4733 if (atomic) 4734 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4735 } 4736 4737 void 4738 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 4739 struct ieee80211_vif *vif, 4740 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 4741 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 4742 void *arg) 4743 { 4744 4745 UNIMPLEMENTED; 4746 } 4747 4748 void 4749 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 4750 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 4751 void *), 4752 void *arg) 4753 { 4754 struct lkpi_hw *lhw; 4755 struct lkpi_vif *lvif; 4756 struct ieee80211_vif *vif; 4757 struct lkpi_chanctx *lchanctx; 4758 4759 KASSERT(hw != NULL && iterfunc != NULL, 4760 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4761 4762 lhw = HW_TO_LHW(hw); 4763 4764 IMPROVE("lchanctx should be its own list somewhere"); 4765 4766 LKPI_80211_LHW_LVIF_LOCK(lhw); 4767 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4768 4769 vif = LVIF_TO_VIF(lvif); 4770 if (vif->chanctx_conf == NULL) 4771 continue; 4772 4773 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 4774 if (!lchanctx->added_to_drv) 4775 continue; 4776 4777 iterfunc(hw, &lchanctx->chanctx_conf, arg); 4778 } 4779 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4780 } 4781 4782 void 4783 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4784 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4785 { 4786 struct lkpi_hw *lhw; 4787 struct lkpi_vif *lvif; 4788 struct lkpi_sta *lsta; 4789 struct ieee80211_sta *sta; 4790 4791 KASSERT(hw != NULL && iterfunc != NULL, 4792 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4793 4794 lhw = HW_TO_LHW(hw); 4795 4796 LKPI_80211_LHW_LVIF_LOCK(lhw); 4797 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4798 4799 LKPI_80211_LVIF_LOCK(lvif); 4800 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4801 if (!lsta->added_to_drv) 4802 continue; 4803 sta = LSTA_TO_STA(lsta); 4804 iterfunc(arg, sta); 4805 } 4806 LKPI_80211_LVIF_UNLOCK(lvif); 4807 } 4808 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4809 } 4810 4811 struct linuxkpi_ieee80211_regdomain * 4812 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4813 { 4814 struct linuxkpi_ieee80211_regdomain *regd; 4815 4816 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4817 GFP_KERNEL); 4818 return (regd); 4819 } 4820 4821 int 4822 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4823 struct linuxkpi_ieee80211_regdomain *regd) 4824 { 4825 struct lkpi_hw *lhw; 4826 struct ieee80211com *ic; 4827 struct ieee80211_regdomain *rd; 4828 4829 lhw = wiphy_priv(wiphy); 4830 ic = lhw->ic; 4831 4832 rd = &ic->ic_regdomain; 4833 if (rd->isocc[0] == '\0') { 4834 rd->isocc[0] = regd->alpha2[0]; 4835 rd->isocc[1] = regd->alpha2[1]; 4836 } 4837 4838 TODO(); 4839 /* XXX-BZ finish the rest. */ 4840 4841 return (0); 4842 } 4843 4844 void 4845 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4846 struct cfg80211_scan_info *info) 4847 { 4848 struct lkpi_hw *lhw; 4849 struct ieee80211com *ic; 4850 struct ieee80211_scan_state *ss; 4851 4852 lhw = wiphy_priv(hw->wiphy); 4853 ic = lhw->ic; 4854 ss = ic->ic_scan; 4855 4856 ieee80211_scan_done(ss->ss_vap); 4857 4858 LKPI_80211_LHW_SCAN_LOCK(lhw); 4859 free(lhw->hw_req, M_LKPI80211); 4860 lhw->hw_req = NULL; 4861 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4862 wakeup(lhw); 4863 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4864 4865 return; 4866 } 4867 4868 static void 4869 lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 4870 { 4871 struct ieee80211_node *ni; 4872 struct m_tag *mtag; 4873 int ok; 4874 4875 ni = NULL; 4876 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4877 if (mtag != NULL) { 4878 struct lkpi_80211_tag_rxni *rxni; 4879 4880 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4881 ni = rxni->ni; 4882 } 4883 4884 if (ni != NULL) { 4885 ok = ieee80211_input_mimo(ni, m); 4886 ieee80211_free_node(ni); /* Release the reference. */ 4887 if (ok < 0) 4888 m_freem(m); 4889 } else { 4890 ok = ieee80211_input_mimo_all(lhw->ic, m); 4891 /* mbuf got consumed. */ 4892 } 4893 4894 #ifdef LINUXKPI_DEBUG_80211 4895 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4896 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4897 #endif 4898 } 4899 4900 static void 4901 lkpi_80211_lhw_rxq_task(void *ctx, int pending) 4902 { 4903 struct lkpi_hw *lhw; 4904 struct mbufq mq; 4905 struct mbuf *m; 4906 4907 lhw = ctx; 4908 4909 #ifdef LINUXKPI_DEBUG_80211 4910 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4911 printf("%s:%d lhw %p pending %d mbuf_qlen %d\n", 4912 __func__, __LINE__, lhw, pending, mbufq_len(&lhw->rxq)); 4913 #endif 4914 4915 mbufq_init(&mq, IFQ_MAXLEN); 4916 4917 LKPI_80211_LHW_RXQ_LOCK(lhw); 4918 mbufq_concat(&mq, &lhw->rxq); 4919 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4920 4921 m = mbufq_dequeue(&mq); 4922 while (m != NULL) { 4923 lkpi_80211_lhw_rxq_rx_one(lhw, m); 4924 m = mbufq_dequeue(&mq); 4925 } 4926 } 4927 4928 /* For %list see comment towards the end of the function. */ 4929 void 4930 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 4931 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 4932 struct list_head *list __unused) 4933 { 4934 struct lkpi_hw *lhw; 4935 struct ieee80211com *ic; 4936 struct mbuf *m; 4937 struct skb_shared_info *shinfo; 4938 struct ieee80211_rx_status *rx_status; 4939 struct ieee80211_rx_stats rx_stats; 4940 struct ieee80211_node *ni; 4941 struct ieee80211vap *vap; 4942 struct ieee80211_hdr *hdr; 4943 struct lkpi_sta *lsta; 4944 int i, offset, ok; 4945 int8_t rssi; 4946 bool is_beacon; 4947 4948 if (skb->len < 2) { 4949 /* Need 80211 stats here. */ 4950 IMPROVE(); 4951 goto err; 4952 } 4953 4954 /* 4955 * For now do the data copy; we can later improve things. Might even 4956 * have an mbuf backing the skb data then? 4957 */ 4958 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 4959 if (m == NULL) 4960 goto err; 4961 m_copyback(m, 0, skb->tail - skb->data, skb->data); 4962 4963 shinfo = skb_shinfo(skb); 4964 offset = m->m_len; 4965 for (i = 0; i < shinfo->nr_frags; i++) { 4966 m_copyback(m, offset, shinfo->frags[i].size, 4967 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 4968 shinfo->frags[i].offset); 4969 offset += shinfo->frags[i].size; 4970 } 4971 4972 rx_status = IEEE80211_SKB_RXCB(skb); 4973 4974 hdr = (void *)skb->data; 4975 is_beacon = ieee80211_is_beacon(hdr->frame_control); 4976 4977 #ifdef LINUXKPI_DEBUG_80211 4978 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 4979 goto no_trace_beacons; 4980 4981 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4982 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 4983 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 4984 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4985 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4986 shinfo, shinfo->nr_frags, 4987 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4988 4989 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4990 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4991 4992 /* Implement a dump_rxcb() !!! */ 4993 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4994 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4995 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4996 __func__, 4997 (uintmax_t)rx_status->boottime_ns, 4998 (uintmax_t)rx_status->mactime, 4999 rx_status->device_timestamp, 5000 rx_status->flag, 5001 rx_status->freq, 5002 rx_status->bw, 5003 rx_status->encoding, 5004 rx_status->ampdu_reference, 5005 rx_status->band, 5006 rx_status->chains, 5007 rx_status->chain_signal[0], 5008 rx_status->chain_signal[1], 5009 rx_status->chain_signal[2], 5010 rx_status->chain_signal[3], 5011 rx_status->signal, 5012 rx_status->enc_flags, 5013 rx_status->he_dcm, 5014 rx_status->he_gi, 5015 rx_status->he_ru, 5016 rx_status->zero_length_psdu_type, 5017 rx_status->nss, 5018 rx_status->rate_idx); 5019 no_trace_beacons: 5020 #endif 5021 5022 memset(&rx_stats, 0, sizeof(rx_stats)); 5023 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 5024 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 5025 rx_stats.c_nf = -96; 5026 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 5027 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 5028 rssi = rx_status->signal; 5029 else 5030 rssi = rx_stats.c_nf; 5031 /* 5032 * net80211 signal strength data are in .5 dBm units relative to 5033 * the current noise floor (see comment in ieee80211_node.h). 5034 */ 5035 rssi -= rx_stats.c_nf; 5036 rx_stats.c_rssi = rssi * 2; 5037 rx_stats.r_flags |= IEEE80211_R_BAND; 5038 rx_stats.c_band = 5039 lkpi_nl80211_band_to_net80211_band(rx_status->band); 5040 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 5041 rx_stats.c_freq = rx_status->freq; 5042 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 5043 5044 /* XXX (*sta_statistics)() to get to some of that? */ 5045 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 5046 5047 lhw = HW_TO_LHW(hw); 5048 ic = lhw->ic; 5049 5050 ok = ieee80211_add_rx_params(m, &rx_stats); 5051 if (ok == 0) { 5052 m_freem(m); 5053 counter_u64_add(ic->ic_ierrors, 1); 5054 goto err; 5055 } 5056 5057 if (sta != NULL) { 5058 lsta = STA_TO_LSTA(sta); 5059 ni = ieee80211_ref_node(lsta->ni); 5060 } else { 5061 struct ieee80211_frame_min *wh; 5062 5063 wh = mtod(m, struct ieee80211_frame_min *); 5064 ni = ieee80211_find_rxnode(ic, wh); 5065 if (ni != NULL) 5066 lsta = ni->ni_drv_data; 5067 } 5068 5069 if (ni != NULL) 5070 vap = ni->ni_vap; 5071 else 5072 /* 5073 * XXX-BZ can we improve this by looking at the frame hdr 5074 * or other meta-data passed up? 5075 */ 5076 vap = TAILQ_FIRST(&ic->ic_vaps); 5077 5078 #ifdef LINUXKPI_DEBUG_80211 5079 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5080 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 5081 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 5082 ni, vap, is_beacon ? " beacon" : ""); 5083 #endif 5084 5085 if (ni != NULL && vap != NULL && is_beacon && 5086 rx_status->device_timestamp > 0 && 5087 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 5088 struct lkpi_vif *lvif; 5089 struct ieee80211_vif *vif; 5090 struct ieee80211_frame *wh; 5091 5092 wh = mtod(m, struct ieee80211_frame *); 5093 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 5094 goto skip_device_ts; 5095 5096 lvif = VAP_TO_LVIF(vap); 5097 vif = LVIF_TO_VIF(lvif); 5098 5099 IMPROVE("TIMING_BEACON_ONLY?"); 5100 /* mac80211 specific (not net80211) so keep it here. */ 5101 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 5102 /* 5103 * net80211 should take care of the other information (sync_tsf, 5104 * sync_dtim_count) as otherwise we need to parse the beacon. 5105 */ 5106 skip_device_ts: 5107 ; 5108 } 5109 5110 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 5111 ieee80211_radiotap_active_vap(vap)) { 5112 struct lkpi_radiotap_rx_hdr *rtap; 5113 5114 rtap = &lhw->rtap_rx; 5115 rtap->wr_tsft = rx_status->device_timestamp; 5116 rtap->wr_flags = 0; 5117 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 5118 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 5119 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 5120 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 5121 #if 0 /* .. or it does not given we strip it below. */ 5122 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5123 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 5124 #endif 5125 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 5126 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 5127 rtap->wr_rate = 0; 5128 IMPROVE(); 5129 /* XXX TODO status->encoding / rate_index / bw */ 5130 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 5131 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 5132 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 5133 rtap->wr_dbm_antsignal = rssi; 5134 rtap->wr_dbm_antnoise = rx_stats.c_nf; 5135 } 5136 5137 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5138 m_adj(m, -IEEE80211_CRC_LEN); 5139 5140 #if 0 5141 if (list != NULL) { 5142 /* 5143 * Normally this would be queued up and delivered by 5144 * netif_receive_skb_list(), napi_gro_receive(), or the like. 5145 * See mt76::mac80211.c as only current possible consumer. 5146 */ 5147 IMPROVE("we simply pass the packet to net80211 to deal with."); 5148 } 5149 #endif 5150 5151 /* 5152 * Attach meta-information to the mbuf for the deferred RX path. 5153 * Currently this is best-effort. Should we need to be hard, 5154 * drop the frame and goto err; 5155 */ 5156 if (ni != NULL) { 5157 struct m_tag *mtag; 5158 struct lkpi_80211_tag_rxni *rxni; 5159 5160 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 5161 sizeof(*rxni), IEEE80211_M_NOWAIT); 5162 if (mtag != NULL) { 5163 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 5164 rxni->ni = ni; /* We hold a reference. */ 5165 m_tag_prepend(m, mtag); 5166 } 5167 } 5168 5169 LKPI_80211_LHW_RXQ_LOCK(lhw); 5170 if (lhw->rxq_stopped) { 5171 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5172 m_freem(m); 5173 goto err; 5174 } 5175 5176 mbufq_enqueue(&lhw->rxq, m); 5177 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 5178 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5179 5180 IMPROVE(); 5181 5182 err: 5183 /* The skb is ours so we can free it :-) */ 5184 kfree_skb(skb); 5185 } 5186 5187 uint8_t 5188 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 5189 { 5190 const struct ieee80211_frame *wh; 5191 uint8_t tid; 5192 5193 /* Linux seems to assume this is a QOS-Data-Frame */ 5194 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 5195 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 5196 hdr->frame_control)); 5197 5198 wh = (const struct ieee80211_frame *)hdr; 5199 tid = ieee80211_gettid(wh); 5200 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 5201 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 5202 5203 return (tid); 5204 } 5205 5206 struct wiphy * 5207 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 5208 { 5209 struct lkpi_wiphy *lwiphy; 5210 5211 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 5212 if (lwiphy == NULL) 5213 return (NULL); 5214 lwiphy->ops = ops; 5215 5216 /* XXX TODO */ 5217 return (LWIPHY_TO_WIPHY(lwiphy)); 5218 } 5219 5220 void 5221 linuxkpi_wiphy_free(struct wiphy *wiphy) 5222 { 5223 struct lkpi_wiphy *lwiphy; 5224 5225 if (wiphy == NULL) 5226 return; 5227 5228 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5229 kfree(lwiphy); 5230 } 5231 5232 uint32_t 5233 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 5234 enum nl80211_band band) 5235 { 5236 5237 switch (band) { 5238 case NL80211_BAND_2GHZ: 5239 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 5240 break; 5241 case NL80211_BAND_5GHZ: 5242 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 5243 break; 5244 default: 5245 /* XXX abort, retry, error, panic? */ 5246 break; 5247 } 5248 5249 return (0); 5250 } 5251 5252 uint32_t 5253 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 5254 { 5255 5256 return (ieee80211_mhz2ieee(freq, 0)); 5257 } 5258 5259 #if 0 5260 static struct lkpi_sta * 5261 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 5262 { 5263 struct lkpi_sta *lsta, *temp; 5264 5265 LKPI_80211_LVIF_LOCK(lvif); 5266 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5267 if (lsta->ni == ni) { 5268 LKPI_80211_LVIF_UNLOCK(lvif); 5269 return (lsta); 5270 } 5271 } 5272 LKPI_80211_LVIF_UNLOCK(lvif); 5273 5274 return (NULL); 5275 } 5276 #endif 5277 5278 struct ieee80211_sta * 5279 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 5280 { 5281 struct lkpi_vif *lvif; 5282 struct lkpi_sta *lsta, *temp; 5283 struct ieee80211_sta *sta; 5284 5285 lvif = VIF_TO_LVIF(vif); 5286 5287 LKPI_80211_LVIF_LOCK(lvif); 5288 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5289 sta = LSTA_TO_STA(lsta); 5290 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 5291 LKPI_80211_LVIF_UNLOCK(lvif); 5292 return (sta); 5293 } 5294 } 5295 LKPI_80211_LVIF_UNLOCK(lvif); 5296 return (NULL); 5297 } 5298 5299 struct ieee80211_sta * 5300 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 5301 const uint8_t *addr, const uint8_t *ourvifaddr) 5302 { 5303 struct lkpi_hw *lhw; 5304 struct lkpi_vif *lvif; 5305 struct lkpi_sta *lsta; 5306 struct ieee80211_vif *vif; 5307 struct ieee80211_sta *sta; 5308 5309 lhw = wiphy_priv(hw->wiphy); 5310 sta = NULL; 5311 5312 LKPI_80211_LHW_LVIF_LOCK(lhw); 5313 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5314 5315 /* XXX-BZ check our address from the vif. */ 5316 5317 vif = LVIF_TO_VIF(lvif); 5318 if (ourvifaddr != NULL && 5319 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 5320 continue; 5321 sta = linuxkpi_ieee80211_find_sta(vif, addr); 5322 if (sta != NULL) 5323 break; 5324 } 5325 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5326 5327 if (sta != NULL) { 5328 lsta = STA_TO_LSTA(sta); 5329 if (!lsta->added_to_drv) 5330 return (NULL); 5331 } 5332 5333 return (sta); 5334 } 5335 5336 struct sk_buff * 5337 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 5338 struct ieee80211_txq *txq) 5339 { 5340 struct lkpi_txq *ltxq; 5341 struct lkpi_vif *lvif; 5342 struct sk_buff *skb; 5343 5344 skb = NULL; 5345 ltxq = TXQ_TO_LTXQ(txq); 5346 ltxq->seen_dequeue = true; 5347 5348 if (ltxq->stopped) 5349 goto stopped; 5350 5351 lvif = VIF_TO_LVIF(ltxq->txq.vif); 5352 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 5353 ltxq->stopped = true; 5354 goto stopped; 5355 } 5356 5357 IMPROVE("hw(TX_FRAG_LIST)"); 5358 5359 LKPI_80211_LTXQ_LOCK(ltxq); 5360 skb = skb_dequeue(<xq->skbq); 5361 LKPI_80211_LTXQ_UNLOCK(ltxq); 5362 5363 stopped: 5364 return (skb); 5365 } 5366 5367 void 5368 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 5369 unsigned long *frame_cnt, unsigned long *byte_cnt) 5370 { 5371 struct lkpi_txq *ltxq; 5372 struct sk_buff *skb; 5373 unsigned long fc, bc; 5374 5375 ltxq = TXQ_TO_LTXQ(txq); 5376 5377 fc = bc = 0; 5378 LKPI_80211_LTXQ_LOCK(ltxq); 5379 skb_queue_walk(<xq->skbq, skb) { 5380 fc++; 5381 bc += skb->len; 5382 } 5383 LKPI_80211_LTXQ_UNLOCK(ltxq); 5384 if (frame_cnt) 5385 *frame_cnt = fc; 5386 if (byte_cnt) 5387 *byte_cnt = bc; 5388 5389 /* Validate that this is doing the correct thing. */ 5390 /* Should we keep track on en/dequeue? */ 5391 IMPROVE(); 5392 } 5393 5394 /* 5395 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 5396 * The latter tries to derive the success status from the info flags 5397 * passed back from the driver. rawx_mit() saves the ni on the m and the 5398 * m on the skb for us to be able to give feedback to net80211. 5399 */ 5400 static void 5401 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5402 int status) 5403 { 5404 struct ieee80211_node *ni; 5405 struct mbuf *m; 5406 5407 m = skb->m; 5408 skb->m = NULL; 5409 5410 if (m != NULL) { 5411 ni = m->m_pkthdr.PH_loc.ptr; 5412 /* Status: 0 is ok, != 0 is error. */ 5413 ieee80211_tx_complete(ni, m, status); 5414 /* ni & mbuf were consumed. */ 5415 } 5416 } 5417 5418 void 5419 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5420 int status) 5421 { 5422 5423 _lkpi_ieee80211_free_txskb(hw, skb, status); 5424 kfree_skb(skb); 5425 } 5426 5427 void 5428 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 5429 struct ieee80211_tx_status *txstat) 5430 { 5431 struct sk_buff *skb; 5432 struct ieee80211_tx_info *info; 5433 struct ieee80211_ratectl_tx_status txs; 5434 struct ieee80211_node *ni; 5435 int status; 5436 5437 skb = txstat->skb; 5438 if (skb->m != NULL) { 5439 struct mbuf *m; 5440 5441 m = skb->m; 5442 ni = m->m_pkthdr.PH_loc.ptr; 5443 memset(&txs, 0, sizeof(txs)); 5444 } else { 5445 ni = NULL; 5446 } 5447 5448 info = txstat->info; 5449 if (info->flags & IEEE80211_TX_STAT_ACK) { 5450 status = 0; /* No error. */ 5451 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 5452 } else { 5453 status = 1; 5454 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 5455 } 5456 5457 if (ni != NULL) { 5458 int ridx __unused; 5459 #ifdef LINUXKPI_DEBUG_80211 5460 int old_rate; 5461 5462 old_rate = ni->ni_vap->iv_bss->ni_txrate; 5463 #endif 5464 txs.pktlen = skb->len; 5465 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 5466 if (info->status.rates[0].count > 1) { 5467 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 5468 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 5469 } 5470 #if 0 /* Unused in net80211 currently. */ 5471 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 5472 txs.final_rate = info->status.rates[0].idx; 5473 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 5474 #endif 5475 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 5476 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 5477 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 5478 } 5479 5480 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 5481 ieee80211_ratectl_tx_complete(ni, &txs); 5482 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 5483 5484 #ifdef LINUXKPI_DEBUG_80211 5485 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 5486 printf("TX-RATE: %s: old %d new %d ridx %d, " 5487 "long_retries %d\n", __func__, 5488 old_rate, ni->ni_vap->iv_bss->ni_txrate, 5489 ridx, txs.long_retries); 5490 } 5491 #endif 5492 } 5493 5494 #ifdef LINUXKPI_DEBUG_80211 5495 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5496 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 5497 "band %u hw_queue %u tx_time_est %d : " 5498 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 5499 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 5500 "tx_time %u flags %#x " 5501 "status_driver_data [ %p %p ]\n", 5502 __func__, hw, skb, status, info->flags, 5503 info->band, info->hw_queue, info->tx_time_est, 5504 info->status.rates[0].idx, info->status.rates[0].count, 5505 info->status.rates[0].flags, 5506 info->status.rates[1].idx, info->status.rates[1].count, 5507 info->status.rates[1].flags, 5508 info->status.rates[2].idx, info->status.rates[2].count, 5509 info->status.rates[2].flags, 5510 info->status.rates[3].idx, info->status.rates[3].count, 5511 info->status.rates[3].flags, 5512 info->status.ack_signal, info->status.ampdu_ack_len, 5513 info->status.ampdu_len, info->status.antenna, 5514 info->status.tx_time, info->status.flags, 5515 info->status.status_driver_data[0], 5516 info->status.status_driver_data[1]); 5517 #endif 5518 5519 if (txstat->free_list) { 5520 _lkpi_ieee80211_free_txskb(hw, skb, status); 5521 list_add_tail(&skb->list, txstat->free_list); 5522 } else { 5523 linuxkpi_ieee80211_free_txskb(hw, skb, status); 5524 } 5525 } 5526 5527 void 5528 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 5529 { 5530 struct ieee80211_tx_status status; 5531 5532 memset(&status, 0, sizeof(status)); 5533 status.info = IEEE80211_SKB_CB(skb); 5534 status.skb = skb; 5535 /* sta, n_rates, rates, free_list? */ 5536 5537 ieee80211_tx_status_ext(hw, &status); 5538 } 5539 5540 /* 5541 * This is an internal bandaid for the moment for the way we glue 5542 * skbs and mbufs together for TX. Once we have skbs backed by 5543 * mbufs this should go away. 5544 * This is a public function but kept on the private KPI (lkpi_) 5545 * and is not exposed by a header file. 5546 */ 5547 static void 5548 lkpi_ieee80211_free_skb_mbuf(void *p) 5549 { 5550 struct ieee80211_node *ni; 5551 struct mbuf *m; 5552 5553 if (p == NULL) 5554 return; 5555 5556 m = (struct mbuf *)p; 5557 M_ASSERTPKTHDR(m); 5558 5559 ni = m->m_pkthdr.PH_loc.ptr; 5560 m->m_pkthdr.PH_loc.ptr = NULL; 5561 if (ni != NULL) 5562 ieee80211_free_node(ni); 5563 m_freem(m); 5564 } 5565 5566 void 5567 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 5568 struct delayed_work *w, int delay) 5569 { 5570 struct lkpi_hw *lhw; 5571 5572 /* Need to make sure hw is in a stable (non-suspended) state. */ 5573 IMPROVE(); 5574 5575 lhw = HW_TO_LHW(hw); 5576 queue_delayed_work(lhw->workq, w, delay); 5577 } 5578 5579 void 5580 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 5581 struct work_struct *w) 5582 { 5583 struct lkpi_hw *lhw; 5584 5585 /* Need to make sure hw is in a stable (non-suspended) state. */ 5586 IMPROVE(); 5587 5588 lhw = HW_TO_LHW(hw); 5589 queue_work(lhw->workq, w); 5590 } 5591 5592 struct sk_buff * 5593 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 5594 uint8_t *ssid, size_t ssid_len, size_t tailroom) 5595 { 5596 struct sk_buff *skb; 5597 struct ieee80211_frame *wh; 5598 uint8_t *p; 5599 size_t len; 5600 5601 len = sizeof(*wh); 5602 len += 2 + ssid_len; 5603 5604 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 5605 if (skb == NULL) 5606 return (NULL); 5607 5608 skb_reserve(skb, hw->extra_tx_headroom); 5609 5610 wh = skb_put_zero(skb, sizeof(*wh)); 5611 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 5612 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 5613 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 5614 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 5615 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 5616 5617 p = skb_put(skb, 2 + ssid_len); 5618 *p++ = IEEE80211_ELEMID_SSID; 5619 *p++ = ssid_len; 5620 if (ssid_len > 0) 5621 memcpy(p, ssid, ssid_len); 5622 5623 return (skb); 5624 } 5625 5626 struct sk_buff * 5627 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 5628 struct ieee80211_vif *vif) 5629 { 5630 struct lkpi_vif *lvif; 5631 struct ieee80211vap *vap; 5632 struct sk_buff *skb; 5633 struct ieee80211_frame_pspoll *psp; 5634 uint16_t v; 5635 5636 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 5637 if (skb == NULL) 5638 return (NULL); 5639 5640 skb_reserve(skb, hw->extra_tx_headroom); 5641 5642 lvif = VIF_TO_LVIF(vif); 5643 vap = LVIF_TO_VAP(lvif); 5644 5645 psp = skb_put_zero(skb, sizeof(*psp)); 5646 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 5647 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 5648 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 5649 memcpy(&psp->i_aid, &v, sizeof(v)); 5650 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 5651 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 5652 5653 return (skb); 5654 } 5655 5656 struct sk_buff * 5657 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 5658 struct ieee80211_vif *vif, int linkid, bool qos) 5659 { 5660 struct lkpi_vif *lvif; 5661 struct ieee80211vap *vap; 5662 struct sk_buff *skb; 5663 struct ieee80211_frame *nullf; 5664 5665 IMPROVE("linkid"); 5666 5667 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 5668 if (skb == NULL) 5669 return (NULL); 5670 5671 skb_reserve(skb, hw->extra_tx_headroom); 5672 5673 lvif = VIF_TO_LVIF(vif); 5674 vap = LVIF_TO_VAP(lvif); 5675 5676 nullf = skb_put_zero(skb, sizeof(*nullf)); 5677 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 5678 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 5679 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 5680 5681 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 5682 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 5683 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 5684 5685 return (skb); 5686 } 5687 5688 struct wireless_dev * 5689 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 5690 { 5691 struct lkpi_vif *lvif; 5692 5693 lvif = VIF_TO_LVIF(vif); 5694 return (&lvif->wdev); 5695 } 5696 5697 void 5698 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 5699 { 5700 struct lkpi_vif *lvif; 5701 struct ieee80211vap *vap; 5702 enum ieee80211_state nstate; 5703 int arg; 5704 5705 lvif = VIF_TO_LVIF(vif); 5706 vap = LVIF_TO_VAP(lvif); 5707 5708 /* 5709 * Go to init; otherwise we need to elaborately check state and 5710 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 5711 * Let the statemachine handle all neccessary changes. 5712 */ 5713 nstate = IEEE80211_S_INIT; 5714 arg = 0; /* Not a valid reason. */ 5715 5716 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5717 vif, vap, ieee80211_state_name[vap->iv_state]); 5718 ieee80211_new_state(vap, nstate, arg); 5719 } 5720 5721 void 5722 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 5723 { 5724 struct lkpi_vif *lvif; 5725 struct ieee80211vap *vap; 5726 5727 lvif = VIF_TO_LVIF(vif); 5728 vap = LVIF_TO_VAP(lvif); 5729 5730 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5731 vif, vap, ieee80211_state_name[vap->iv_state]); 5732 ieee80211_beacon_miss(vap->iv_ic); 5733 } 5734 5735 /* -------------------------------------------------------------------------- */ 5736 5737 void 5738 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 5739 { 5740 struct lkpi_hw *lhw; 5741 struct lkpi_vif *lvif; 5742 struct ieee80211_vif *vif; 5743 int ac_count, ac; 5744 5745 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5746 __func__, qnum, hw->queues, hw)); 5747 5748 lhw = wiphy_priv(hw->wiphy); 5749 5750 /* See lkpi_ic_vap_create(). */ 5751 if (hw->queues >= IEEE80211_NUM_ACS) 5752 ac_count = IEEE80211_NUM_ACS; 5753 else 5754 ac_count = 1; 5755 5756 LKPI_80211_LHW_LVIF_LOCK(lhw); 5757 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5758 5759 vif = LVIF_TO_VIF(lvif); 5760 for (ac = 0; ac < ac_count; ac++) { 5761 IMPROVE_TXQ("LOCKING"); 5762 if (qnum == vif->hw_queue[ac]) { 5763 #ifdef LINUXKPI_DEBUG_80211 5764 /* 5765 * For now log this to better understand 5766 * how this is supposed to work. 5767 */ 5768 if (lvif->hw_queue_stopped[ac] && 5769 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5770 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5771 "lvif %p vif %p ac %d qnum %d already " 5772 "stopped\n", __func__, __LINE__, 5773 lhw, hw, lvif, vif, ac, qnum); 5774 #endif 5775 lvif->hw_queue_stopped[ac] = true; 5776 } 5777 } 5778 } 5779 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5780 } 5781 5782 void 5783 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 5784 { 5785 int i; 5786 5787 IMPROVE_TXQ("Locking; do we need further info?"); 5788 for (i = 0; i < hw->queues; i++) 5789 linuxkpi_ieee80211_stop_queue(hw, i); 5790 } 5791 5792 5793 static void 5794 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 5795 { 5796 struct lkpi_hw *lhw; 5797 struct lkpi_vif *lvif; 5798 struct lkpi_sta *lsta; 5799 int ac_count, ac, tid; 5800 5801 /* See lkpi_ic_vap_create(). */ 5802 if (hw->queues >= IEEE80211_NUM_ACS) 5803 ac_count = IEEE80211_NUM_ACS; 5804 else 5805 ac_count = 1; 5806 5807 lhw = wiphy_priv(hw->wiphy); 5808 5809 IMPROVE_TXQ("Locking"); 5810 LKPI_80211_LHW_LVIF_LOCK(lhw); 5811 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5812 struct ieee80211_vif *vif; 5813 5814 vif = LVIF_TO_VIF(lvif); 5815 for (ac = 0; ac < ac_count; ac++) { 5816 5817 if (hwq == vif->hw_queue[ac]) { 5818 5819 /* XXX-BZ what about software scan? */ 5820 5821 #ifdef LINUXKPI_DEBUG_80211 5822 /* 5823 * For now log this to better understand 5824 * how this is supposed to work. 5825 */ 5826 if (!lvif->hw_queue_stopped[ac] && 5827 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5828 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5829 "lvif %p vif %p ac %d hw_q not stopped\n", 5830 __func__, __LINE__, 5831 lhw, hw, lvif, vif, ac); 5832 #endif 5833 lvif->hw_queue_stopped[ac] = false; 5834 5835 LKPI_80211_LVIF_LOCK(lvif); 5836 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 5837 struct ieee80211_sta *sta; 5838 5839 sta = LSTA_TO_STA(lsta); 5840 for (tid = 0; tid < nitems(sta->txq); tid++) { 5841 struct lkpi_txq *ltxq; 5842 5843 if (sta->txq[tid] == NULL) 5844 continue; 5845 5846 if (sta->txq[tid]->ac != ac) 5847 continue; 5848 5849 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 5850 if (!ltxq->stopped) 5851 continue; 5852 5853 ltxq->stopped = false; 5854 5855 /* XXX-BZ see when this explodes with all the locking. taskq? */ 5856 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 5857 } 5858 } 5859 LKPI_80211_LVIF_UNLOCK(lvif); 5860 } 5861 } 5862 } 5863 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5864 } 5865 5866 void 5867 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 5868 { 5869 int i; 5870 5871 IMPROVE_TXQ("Is this all/enough here?"); 5872 for (i = 0; i < hw->queues; i++) 5873 lkpi_ieee80211_wake_queues(hw, i); 5874 } 5875 5876 void 5877 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 5878 { 5879 5880 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5881 __func__, qnum, hw->queues, hw)); 5882 5883 lkpi_ieee80211_wake_queues(hw, qnum); 5884 } 5885 5886 /* This is just hardware queues. */ 5887 void 5888 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 5889 { 5890 struct lkpi_hw *lhw; 5891 5892 lhw = HW_TO_LHW(hw); 5893 5894 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 5895 IMPROVE_TXQ("LOCKING"); 5896 if (++lhw->txq_generation[ac] == 0) 5897 lhw->txq_generation[ac]++; 5898 } 5899 5900 struct ieee80211_txq * 5901 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 5902 { 5903 struct lkpi_hw *lhw; 5904 struct ieee80211_txq *txq; 5905 struct lkpi_txq *ltxq; 5906 5907 lhw = HW_TO_LHW(hw); 5908 txq = NULL; 5909 5910 IMPROVE_TXQ("LOCKING"); 5911 5912 /* Check that we are scheduled. */ 5913 if (lhw->txq_generation[ac] == 0) 5914 goto out; 5915 5916 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 5917 if (ltxq == NULL) 5918 goto out; 5919 if (ltxq->txq_generation == lhw->txq_generation[ac]) 5920 goto out; 5921 5922 ltxq->txq_generation = lhw->txq_generation[ac]; 5923 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 5924 txq = <xq->txq; 5925 TAILQ_ELEM_INIT(ltxq, txq_entry); 5926 5927 out: 5928 return (txq); 5929 } 5930 5931 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 5932 struct ieee80211_txq *txq, bool withoutpkts) 5933 { 5934 struct lkpi_hw *lhw; 5935 struct lkpi_txq *ltxq; 5936 bool ltxq_empty; 5937 5938 ltxq = TXQ_TO_LTXQ(txq); 5939 5940 IMPROVE_TXQ("LOCKING"); 5941 5942 /* Only schedule if work to do or asked to anyway. */ 5943 LKPI_80211_LTXQ_LOCK(ltxq); 5944 ltxq_empty = skb_queue_empty(<xq->skbq); 5945 LKPI_80211_LTXQ_UNLOCK(ltxq); 5946 if (!withoutpkts && ltxq_empty) 5947 goto out; 5948 5949 /* Make sure we do not double-schedule. */ 5950 if (ltxq->txq_entry.tqe_next != NULL) 5951 goto out; 5952 5953 lhw = HW_TO_LHW(hw); 5954 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 5955 out: 5956 return; 5957 } 5958 5959 void 5960 linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 5961 struct ieee80211_txq *txq) 5962 { 5963 struct lkpi_hw *lhw; 5964 struct ieee80211_txq *ntxq; 5965 struct ieee80211_tx_control control; 5966 struct sk_buff *skb; 5967 5968 lhw = HW_TO_LHW(hw); 5969 5970 LKPI_80211_LHW_TXQ_LOCK(lhw); 5971 ieee80211_txq_schedule_start(hw, txq->ac); 5972 do { 5973 ntxq = ieee80211_next_txq(hw, txq->ac); 5974 if (ntxq == NULL) 5975 break; 5976 5977 memset(&control, 0, sizeof(control)); 5978 control.sta = ntxq->sta; 5979 do { 5980 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 5981 if (skb == NULL) 5982 break; 5983 lkpi_80211_mo_tx(hw, &control, skb); 5984 } while(1); 5985 5986 ieee80211_return_txq(hw, ntxq, false); 5987 } while (1); 5988 ieee80211_txq_schedule_end(hw, txq->ac); 5989 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 5990 } 5991 5992 /* -------------------------------------------------------------------------- */ 5993 5994 struct lkpi_cfg80211_bss { 5995 u_int refcnt; 5996 struct cfg80211_bss bss; 5997 }; 5998 5999 struct lkpi_cfg80211_get_bss_iter_lookup { 6000 struct wiphy *wiphy; 6001 struct linuxkpi_ieee80211_channel *chan; 6002 const uint8_t *bssid; 6003 const uint8_t *ssid; 6004 size_t ssid_len; 6005 enum ieee80211_bss_type bss_type; 6006 enum ieee80211_privacy privacy; 6007 6008 /* 6009 * Something to store a copy of the result as the net80211 scan cache 6010 * is not refoucnted so a scan entry might go away any time. 6011 */ 6012 bool match; 6013 struct cfg80211_bss *bss; 6014 }; 6015 6016 static void 6017 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 6018 { 6019 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 6020 size_t ielen; 6021 6022 lookup = arg; 6023 6024 /* Do not try to find another match. */ 6025 if (lookup->match) 6026 return; 6027 6028 /* Nothing to store result. */ 6029 if (lookup->bss == NULL) 6030 return; 6031 6032 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 6033 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 6034 /* We have no idea what to compare to as the drivers only request ANY */ 6035 return; 6036 } 6037 6038 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 6039 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 6040 /* We have no idea what to compare to as the drivers only request ANY */ 6041 return; 6042 } 6043 6044 if (lookup->chan != NULL) { 6045 struct linuxkpi_ieee80211_channel *chan; 6046 6047 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 6048 se->se_chan->ic_freq); 6049 if (chan == NULL || chan != lookup->chan) 6050 return; 6051 } 6052 6053 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 6054 return; 6055 6056 if (lookup->ssid) { 6057 if (lookup->ssid_len != se->se_ssid[1] || 6058 se->se_ssid[1] == 0) 6059 return; 6060 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 6061 return; 6062 } 6063 6064 ielen = se->se_ies.len; 6065 6066 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 6067 M_LKPI80211, M_NOWAIT | M_ZERO); 6068 if (lookup->bss->ies == NULL) 6069 return; 6070 6071 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 6072 lookup->bss->ies->len = ielen; 6073 if (ielen) 6074 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 6075 6076 lookup->match = true; 6077 } 6078 6079 struct cfg80211_bss * 6080 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 6081 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 6082 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 6083 { 6084 struct lkpi_cfg80211_bss *lbss; 6085 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 6086 struct lkpi_hw *lhw; 6087 struct ieee80211vap *vap; 6088 6089 lhw = wiphy_priv(wiphy); 6090 6091 /* Let's hope we can alloc. */ 6092 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 6093 if (lbss == NULL) { 6094 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 6095 return (NULL); 6096 } 6097 6098 lookup.wiphy = wiphy; 6099 lookup.chan = chan; 6100 lookup.bssid = bssid; 6101 lookup.ssid = ssid; 6102 lookup.ssid_len = ssid_len; 6103 lookup.bss_type = bss_type; 6104 lookup.privacy = privacy; 6105 lookup.match = false; 6106 lookup.bss = &lbss->bss; 6107 6108 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 6109 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 6110 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 6111 if (!lookup.match) { 6112 free(lbss, M_LKPI80211); 6113 return (NULL); 6114 } 6115 6116 refcount_init(&lbss->refcnt, 1); 6117 return (&lbss->bss); 6118 } 6119 6120 void 6121 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 6122 { 6123 struct lkpi_cfg80211_bss *lbss; 6124 6125 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 6126 6127 /* Free everything again on refcount ... */ 6128 if (refcount_release(&lbss->refcnt)) { 6129 free(lbss->bss.ies, M_LKPI80211); 6130 free(lbss, M_LKPI80211); 6131 } 6132 } 6133 6134 void 6135 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 6136 { 6137 struct lkpi_hw *lhw; 6138 struct ieee80211com *ic; 6139 struct ieee80211vap *vap; 6140 6141 lhw = wiphy_priv(wiphy); 6142 ic = lhw->ic; 6143 6144 /* 6145 * If we haven't called ieee80211_ifattach() yet 6146 * or there is no VAP, there are no scans to flush. 6147 */ 6148 if (ic == NULL || 6149 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 6150 return; 6151 6152 /* Should only happen on the current one? Not seen it late enough. */ 6153 IEEE80211_LOCK(ic); 6154 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 6155 ieee80211_scan_flush(vap); 6156 IEEE80211_UNLOCK(ic); 6157 } 6158 6159 /* -------------------------------------------------------------------------- */ 6160 6161 MODULE_VERSION(linuxkpi_wlan, 1); 6162 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 6163 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 6164