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