1 /*- 2 * Copyright (c) 2020-2023 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/param.h> 43 #include <sys/types.h> 44 #include <sys/kernel.h> 45 #include <sys/errno.h> 46 #include <sys/malloc.h> 47 #include <sys/module.h> 48 #include <sys/mutex.h> 49 #include <sys/socket.h> 50 #include <sys/sysctl.h> 51 #include <sys/queue.h> 52 #include <sys/taskqueue.h> 53 #include <sys/libkern.h> 54 55 #include <net/if.h> 56 #include <net/if_var.h> 57 #include <net/if_media.h> 58 #include <net/ethernet.h> 59 60 #include <net80211/ieee80211_var.h> 61 #include <net80211/ieee80211_proto.h> 62 #include <net80211/ieee80211_ratectl.h> 63 #include <net80211/ieee80211_radiotap.h> 64 #include <net80211/ieee80211_vht.h> 65 66 #define LINUXKPI_NET80211 67 #include <net/mac80211.h> 68 69 #include <linux/workqueue.h> 70 #include "linux_80211.h" 71 72 #define LKPI_80211_WME 73 /* #define LKPI_80211_HW_CRYPTO */ 74 /* #define LKPI_80211_VHT */ 75 /* #define LKPI_80211_HT */ 76 #if defined(LKPI_80211_VHT) && !defined(LKPI_80211_HT) 77 #define LKPI_80211_HT 78 #endif 79 80 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 81 82 /* XXX-BZ really want this and others in queue.h */ 83 #define TAILQ_ELEM_INIT(elm, field) do { \ 84 (elm)->field.tqe_next = NULL; \ 85 (elm)->field.tqe_prev = NULL; \ 86 } while (0) 87 88 /* -------------------------------------------------------------------------- */ 89 90 /* Keep public for as long as header files are using it too. */ 91 int linuxkpi_debug_80211; 92 93 #ifdef LINUXKPI_DEBUG_80211 94 SYSCTL_DECL(_compat_linuxkpi); 95 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 96 "LinuxKPI 802.11 compatibility layer"); 97 98 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 99 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 100 101 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 102 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 103 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 104 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 105 #else 106 #define UNIMPLEMENTED do { } while (0) 107 #define TRACEOK() do { } while (0) 108 #endif 109 110 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 111 #ifndef PREP_TX_INFO_DURATION 112 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 113 #endif 114 115 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 116 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 117 118 /* IEEE 802.11-05/0257r1 */ 119 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 120 121 /* IEEE 802.11e Table 20i-UP-to-AC mappings. */ 122 static const uint8_t ieee80211e_up_to_ac[] = { 123 IEEE80211_AC_BE, 124 IEEE80211_AC_BK, 125 IEEE80211_AC_BK, 126 IEEE80211_AC_BE, 127 IEEE80211_AC_VI, 128 IEEE80211_AC_VI, 129 IEEE80211_AC_VO, 130 IEEE80211_AC_VO, 131 #if 0 132 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 133 #endif 134 }; 135 136 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 137 /* 138 * XXX TODO need a "glue layer" to link cfg80211 ops to 139 * mac80211 and to the driver or net80211. 140 * Can we pass some on 1:1? Need to compare the (*f)(). 141 */ 142 }; 143 144 #if 0 145 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 146 struct ieee80211_node *); 147 #endif 148 static void lkpi_80211_txq_task(void *, int); 149 static void lkpi_80211_lhw_rxq_task(void *, int); 150 static void lkpi_ieee80211_free_skb_mbuf(void *); 151 #ifdef LKPI_80211_WME 152 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 153 #endif 154 155 #if defined(LKPI_80211_HT) 156 static void 157 lkpi_sta_sync_ht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *ht_rx_nss) 158 { 159 struct ieee80211vap *vap; 160 uint8_t *ie; 161 struct ieee80211_ht_cap *htcap; 162 int i, rx_nss; 163 164 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) 165 return; 166 167 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && 168 IEEE80211_IS_CHAN_HT40(ni->ni_chan)) 169 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_40; 170 171 sta->deflink.ht_cap.ht_supported = true; 172 173 /* htcap->ampdu_params_info */ 174 vap = ni->ni_vap; 175 sta->deflink.ht_cap.ampdu_density = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 176 if (sta->deflink.ht_cap.ampdu_density > vap->iv_ampdu_density) 177 sta->deflink.ht_cap.ampdu_density = vap->iv_ampdu_density; 178 sta->deflink.ht_cap.ampdu_factor = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 179 if (sta->deflink.ht_cap.ampdu_factor > vap->iv_ampdu_rxmax) 180 sta->deflink.ht_cap.ampdu_factor = vap->iv_ampdu_rxmax; 181 182 ie = ni->ni_ies.htcap_ie; 183 KASSERT(ie != NULL, ("%s: HT but no htcap_ie on ni %p\n", __func__, ni)); 184 if (ie[0] == IEEE80211_ELEMID_VENDOR) 185 ie += 4; 186 ie += 2; 187 htcap = (struct ieee80211_ht_cap *)ie; 188 sta->deflink.ht_cap.cap = htcap->cap_info; 189 sta->deflink.ht_cap.mcs = htcap->mcs; 190 191 rx_nss = 0; 192 for (i = 0; i < nitems(htcap->mcs.rx_mask); i++) { 193 if (htcap->mcs.rx_mask[i]) 194 rx_nss++; 195 } 196 if (ht_rx_nss != NULL) 197 *ht_rx_nss = rx_nss; 198 199 IMPROVE("sta->wme, sta->deflink.agg.max*"); 200 } 201 #endif 202 203 #if defined(LKPI_80211_VHT) 204 static void 205 lkpi_sta_sync_vht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *vht_rx_nss) 206 { 207 208 if ((ni->ni_flags & IEEE80211_NODE_VHT) == 0) 209 return; 210 211 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 212 #ifdef __notyet__ 213 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 214 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; /* XXX? */ 215 } else 216 #endif 217 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 218 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; 219 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 220 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_80; 221 } 222 223 IMPROVE("VHT sync ni to sta"); 224 return; 225 } 226 #endif 227 228 static void 229 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 230 const char *_f, int _l) 231 { 232 233 #ifdef LINUXKPI_DEBUG_80211 234 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 235 return; 236 if (lsta == NULL) 237 return; 238 239 printf("%s:%d lsta %p ni %p sta %p\n", 240 _f, _l, lsta, ni, &lsta->sta); 241 if (ni != NULL) 242 ieee80211_dump_node(NULL, ni); 243 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 244 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 245 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 246 #endif 247 } 248 249 static void 250 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 251 { 252 253 254 LKPI_80211_LVIF_LOCK(lvif); 255 KASSERT(lsta->lsta_entry.tqe_prev != NULL, 256 ("%s: lsta %p lsta_entry.tqe_prev %p ni %p\n", __func__, 257 lsta, lsta->lsta_entry.tqe_prev, lsta->ni)); 258 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 259 LKPI_80211_LVIF_UNLOCK(lvif); 260 } 261 262 static struct lkpi_sta * 263 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 264 struct ieee80211_hw *hw, struct ieee80211_node *ni) 265 { 266 struct lkpi_sta *lsta; 267 struct lkpi_vif *lvif; 268 struct ieee80211_vif *vif; 269 struct ieee80211_sta *sta; 270 int band, i, tid; 271 int ht_rx_nss; 272 int vht_rx_nss; 273 274 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 275 M_NOWAIT | M_ZERO); 276 if (lsta == NULL) 277 return (NULL); 278 279 lsta->added_to_drv = false; 280 lsta->state = IEEE80211_STA_NOTEXIST; 281 /* 282 * Link the ni to the lsta here without taking a reference. 283 * For one we would have to take the reference in node_init() 284 * as ieee80211_alloc_node() will initialise the refcount after us. 285 * For the other a ni and an lsta are 1:1 mapped and always together 286 * from [ic_]node_alloc() to [ic_]node_free() so we are essentally 287 * using the ni references for the lsta as well despite it being 288 * two separate allocations. 289 */ 290 lsta->ni = ni; 291 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 292 ni->ni_drv_data = lsta; 293 294 lvif = VAP_TO_LVIF(vap); 295 vif = LVIF_TO_VIF(lvif); 296 sta = LSTA_TO_STA(lsta); 297 298 IEEE80211_ADDR_COPY(sta->addr, mac); 299 300 /* TXQ */ 301 for (tid = 0; tid < nitems(sta->txq); tid++) { 302 struct lkpi_txq *ltxq; 303 304 /* We are not limiting ourselves to hw.queues here. */ 305 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 306 M_LKPI80211, M_NOWAIT | M_ZERO); 307 if (ltxq == NULL) 308 goto cleanup; 309 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 310 if (tid == IEEE80211_NUM_TIDS) { 311 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 312 free(ltxq, M_LKPI80211); 313 continue; 314 } 315 IMPROVE("AP/if we support non-STA here too"); 316 ltxq->txq.ac = IEEE80211_AC_VO; 317 } else { 318 ltxq->txq.ac = ieee80211e_up_to_ac[tid & 7]; 319 } 320 ltxq->seen_dequeue = false; 321 ltxq->stopped = false; 322 ltxq->txq.vif = vif; 323 ltxq->txq.tid = tid; 324 ltxq->txq.sta = sta; 325 TAILQ_ELEM_INIT(ltxq, txq_entry); 326 skb_queue_head_init(<xq->skbq); 327 LKPI_80211_LTXQ_LOCK_INIT(ltxq); 328 sta->txq[tid] = <xq->txq; 329 } 330 331 /* Deflink information. */ 332 for (band = 0; band < NUM_NL80211_BANDS; band++) { 333 struct ieee80211_supported_band *supband; 334 335 supband = hw->wiphy->bands[band]; 336 if (supband == NULL) 337 continue; 338 339 for (i = 0; i < supband->n_bitrates; i++) { 340 341 IMPROVE("Further supband->bitrates[i]* checks?"); 342 /* or should we get them from the ni? */ 343 sta->deflink.supp_rates[band] |= BIT(i); 344 } 345 } 346 347 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 348 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_20; 349 sta->deflink.rx_nss = 0; 350 351 ht_rx_nss = 0; 352 #if defined(LKPI_80211_HT) 353 lkpi_sta_sync_ht_from_ni(sta, ni, &ht_rx_nss); 354 #endif 355 vht_rx_nss = 0; 356 #if defined(LKPI_80211_VHT) 357 lkpi_sta_sync_vht_from_ni(sta, ni, &vht_rx_nss); 358 #endif 359 360 sta->deflink.rx_nss = MAX(ht_rx_nss, sta->deflink.rx_nss); 361 sta->deflink.rx_nss = MAX(vht_rx_nss, sta->deflink.rx_nss); 362 IMPROVE("he, ... smps_mode, .."); 363 364 /* Link configuration. */ 365 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 366 sta->link[0] = &sta->deflink; 367 for (i = 1; i < nitems(sta->link); i++) { 368 IMPROVE("more links; only link[0] = deflink currently."); 369 } 370 371 /* Deferred TX path. */ 372 LKPI_80211_LSTA_TXQ_LOCK_INIT(lsta); 373 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 374 mbufq_init(&lsta->txq, IFQ_MAXLEN); 375 lsta->txq_ready = true; 376 377 return (lsta); 378 379 cleanup: 380 for (; tid >= 0; tid--) { 381 struct lkpi_txq *ltxq; 382 383 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 384 LKPI_80211_LTXQ_LOCK_DESTROY(ltxq); 385 free(sta->txq[tid], M_LKPI80211); 386 } 387 free(lsta, M_LKPI80211); 388 return (NULL); 389 } 390 391 static void 392 lkpi_lsta_free(struct lkpi_sta *lsta, struct ieee80211_node *ni) 393 { 394 struct mbuf *m; 395 396 if (lsta->added_to_drv) 397 panic("%s: Trying to free an lsta still known to firmware: " 398 "lsta %p ni %p added_to_drv %d\n", 399 __func__, lsta, ni, lsta->added_to_drv); 400 401 /* XXX-BZ free resources, ... */ 402 IMPROVE(); 403 404 /* Drain sta->txq[] */ 405 406 LKPI_80211_LSTA_TXQ_LOCK(lsta); 407 lsta->txq_ready = false; 408 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 409 410 /* Drain taskq, won't be restarted until added_to_drv is set again. */ 411 while (taskqueue_cancel(taskqueue_thread, &lsta->txq_task, NULL) != 0) 412 taskqueue_drain(taskqueue_thread, &lsta->txq_task); 413 414 /* Flush mbufq (make sure to release ni refs!). */ 415 m = mbufq_dequeue(&lsta->txq); 416 while (m != NULL) { 417 struct ieee80211_node *nim; 418 419 nim = (struct ieee80211_node *)m->m_pkthdr.rcvif; 420 if (nim != NULL) 421 ieee80211_free_node(nim); 422 m_freem(m); 423 m = mbufq_dequeue(&lsta->txq); 424 } 425 KASSERT(mbufq_empty(&lsta->txq), ("%s: lsta %p has txq len %d != 0\n", 426 __func__, lsta, mbufq_len(&lsta->txq))); 427 LKPI_80211_LSTA_TXQ_LOCK_DESTROY(lsta); 428 429 /* Remove lsta from vif; that is done by the state machine. Should assert it? */ 430 431 IMPROVE("Make sure everything is cleaned up."); 432 433 /* Free lsta. */ 434 lsta->ni = NULL; 435 ni->ni_drv_data = NULL; 436 free(lsta, M_LKPI80211); 437 } 438 439 440 static enum nl80211_band 441 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 442 { 443 444 if (IEEE80211_IS_CHAN_2GHZ(c)) 445 return (NL80211_BAND_2GHZ); 446 else if (IEEE80211_IS_CHAN_5GHZ(c)) 447 return (NL80211_BAND_5GHZ); 448 #ifdef __notyet__ 449 else if () 450 return (NL80211_BAND_6GHZ); 451 else if () 452 return (NL80211_BAND_60GHZ); 453 else if (IEEE80211_IS_CHAN_GSM(c)) 454 return (NL80211_BAND_XXX); 455 #endif 456 else 457 panic("%s: unsupported band. c %p flags %#x\n", 458 __func__, c, c->ic_flags); 459 } 460 461 static uint32_t 462 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 463 { 464 465 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 466 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 467 switch (band) { 468 case NL80211_BAND_2GHZ: 469 return (IEEE80211_CHAN_2GHZ); 470 break; 471 case NL80211_BAND_5GHZ: 472 return (IEEE80211_CHAN_5GHZ); 473 break; 474 case NL80211_BAND_60GHZ: 475 break; 476 case NL80211_BAND_6GHZ: 477 break; 478 default: 479 panic("%s: unsupported band %u\n", __func__, band); 480 break; 481 } 482 483 IMPROVE(); 484 return (0x00); 485 } 486 487 #if 0 488 static enum ieee80211_ac_numbers 489 lkpi_ac_net_to_l80211(int ac) 490 { 491 492 switch (ac) { 493 case WME_AC_VO: 494 return (IEEE80211_AC_VO); 495 case WME_AC_VI: 496 return (IEEE80211_AC_VI); 497 case WME_AC_BE: 498 return (IEEE80211_AC_BE); 499 case WME_AC_BK: 500 return (IEEE80211_AC_BK); 501 default: 502 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 503 return (IEEE80211_AC_BE); 504 } 505 } 506 #endif 507 508 static enum nl80211_iftype 509 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 510 { 511 512 switch (opmode) { 513 case IEEE80211_M_IBSS: 514 return (NL80211_IFTYPE_ADHOC); 515 break; 516 case IEEE80211_M_STA: 517 return (NL80211_IFTYPE_STATION); 518 break; 519 case IEEE80211_M_WDS: 520 return (NL80211_IFTYPE_WDS); 521 break; 522 case IEEE80211_M_HOSTAP: 523 return (NL80211_IFTYPE_AP); 524 break; 525 case IEEE80211_M_MONITOR: 526 return (NL80211_IFTYPE_MONITOR); 527 break; 528 case IEEE80211_M_MBSS: 529 return (NL80211_IFTYPE_MESH_POINT); 530 break; 531 case IEEE80211_M_AHDEMO: 532 /* FALLTHROUGH */ 533 default: 534 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 535 /* FALLTHROUGH */ 536 } 537 return (NL80211_IFTYPE_UNSPECIFIED); 538 } 539 540 #ifdef LKPI_80211_HW_CRYPTO 541 static uint32_t 542 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 543 { 544 545 switch (wlan_cipher_suite) { 546 case WLAN_CIPHER_SUITE_WEP40: 547 return (IEEE80211_CRYPTO_WEP); 548 case WLAN_CIPHER_SUITE_TKIP: 549 return (IEEE80211_CRYPTO_TKIP); 550 case WLAN_CIPHER_SUITE_CCMP: 551 return (IEEE80211_CRYPTO_AES_CCM); 552 case WLAN_CIPHER_SUITE_WEP104: 553 return (IEEE80211_CRYPTO_WEP); 554 case WLAN_CIPHER_SUITE_AES_CMAC: 555 case WLAN_CIPHER_SUITE_GCMP: 556 case WLAN_CIPHER_SUITE_GCMP_256: 557 case WLAN_CIPHER_SUITE_CCMP_256: 558 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 559 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 560 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 561 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 562 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 563 break; 564 default: 565 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 566 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 567 } 568 569 return (0); 570 } 571 572 static uint32_t 573 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 574 { 575 576 switch (cipher) { 577 case IEEE80211_CIPHER_TKIP: 578 return (WLAN_CIPHER_SUITE_TKIP); 579 case IEEE80211_CIPHER_AES_CCM: 580 return (WLAN_CIPHER_SUITE_CCMP); 581 case IEEE80211_CIPHER_WEP: 582 if (keylen < 8) 583 return (WLAN_CIPHER_SUITE_WEP40); 584 else 585 return (WLAN_CIPHER_SUITE_WEP104); 586 break; 587 case IEEE80211_CIPHER_AES_OCB: 588 case IEEE80211_CIPHER_TKIPMIC: 589 case IEEE80211_CIPHER_CKIP: 590 case IEEE80211_CIPHER_NONE: 591 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 592 break; 593 default: 594 printf("%s: unknown cipher %#010x\n", __func__, cipher); 595 }; 596 return (0); 597 } 598 #endif 599 600 #ifdef __notyet__ 601 static enum ieee80211_sta_state 602 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 603 { 604 605 /* 606 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 607 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 608 */ 609 switch (state) { 610 case IEEE80211_S_INIT: 611 return (IEEE80211_STA_NOTEXIST); 612 case IEEE80211_S_SCAN: 613 return (IEEE80211_STA_NONE); 614 case IEEE80211_S_AUTH: 615 return (IEEE80211_STA_AUTH); 616 case IEEE80211_S_ASSOC: 617 return (IEEE80211_STA_ASSOC); 618 case IEEE80211_S_RUN: 619 return (IEEE80211_STA_AUTHORIZED); 620 case IEEE80211_S_CAC: 621 case IEEE80211_S_CSA: 622 case IEEE80211_S_SLEEP: 623 default: 624 UNIMPLEMENTED; 625 }; 626 627 return (IEEE80211_STA_NOTEXIST); 628 } 629 #endif 630 631 static struct linuxkpi_ieee80211_channel * 632 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 633 struct ieee80211_channel *c) 634 { 635 struct ieee80211_hw *hw; 636 struct linuxkpi_ieee80211_channel *channels; 637 enum nl80211_band band; 638 int i, nchans; 639 640 hw = LHW_TO_HW(lhw); 641 band = lkpi_net80211_chan_to_nl80211_band(c); 642 if (hw->wiphy->bands[band] == NULL) 643 return (NULL); 644 645 nchans = hw->wiphy->bands[band]->n_channels; 646 if (nchans <= 0) 647 return (NULL); 648 649 channels = hw->wiphy->bands[band]->channels; 650 for (i = 0; i < nchans; i++) { 651 if (channels[i].hw_value == c->ic_ieee) 652 return (&channels[i]); 653 } 654 655 return (NULL); 656 } 657 658 #if 0 659 static struct linuxkpi_ieee80211_channel * 660 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 661 { 662 struct linuxkpi_ieee80211_channel *chan; 663 struct ieee80211_channel *c; 664 struct lkpi_hw *lhw; 665 666 chan = NULL; 667 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 668 c = ni->ni_chan; 669 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 670 c = ic->ic_bsschan; 671 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 672 c = ic->ic_curchan; 673 else 674 c = NULL; 675 676 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 677 lhw = ic->ic_softc; 678 chan = lkpi_find_lkpi80211_chan(lhw, c); 679 } 680 681 return (chan); 682 } 683 #endif 684 685 struct linuxkpi_ieee80211_channel * 686 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 687 { 688 enum nl80211_band band; 689 690 for (band = 0; band < NUM_NL80211_BANDS; band++) { 691 struct ieee80211_supported_band *supband; 692 struct linuxkpi_ieee80211_channel *channels; 693 int i; 694 695 supband = wiphy->bands[band]; 696 if (supband == NULL || supband->n_channels == 0) 697 continue; 698 699 channels = supband->channels; 700 for (i = 0; i < supband->n_channels; i++) { 701 if (channels[i].center_freq == freq) 702 return (&channels[i]); 703 } 704 } 705 706 return (NULL); 707 } 708 709 #ifdef LKPI_80211_HW_CRYPTO 710 static int 711 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 712 enum set_key_cmd cmd) 713 { 714 struct ieee80211com *ic; 715 struct lkpi_hw *lhw; 716 struct ieee80211_hw *hw; 717 struct lkpi_vif *lvif; 718 struct ieee80211_vif *vif; 719 struct ieee80211_sta *sta; 720 struct ieee80211_node *ni; 721 struct ieee80211_key_conf *kc; 722 int error; 723 724 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 725 726 ic = vap->iv_ic; 727 lhw = ic->ic_softc; 728 hw = LHW_TO_HW(lhw); 729 lvif = VAP_TO_LVIF(vap); 730 vif = LVIF_TO_VIF(lvif); 731 732 memset(&kc, 0, sizeof(kc)); 733 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 734 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 735 k->wk_cipher->ic_cipher, k->wk_keylen); 736 kc->keyidx = k->wk_keyix; 737 #if 0 738 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 739 #endif 740 atomic64_set(&kc->tx_pn, k->wk_keytsc); 741 kc->keylen = k->wk_keylen; 742 memcpy(kc->key, k->wk_key, k->wk_keylen); 743 744 switch (kc->cipher) { 745 case WLAN_CIPHER_SUITE_CCMP: 746 kc->iv_len = k->wk_cipher->ic_header; 747 kc->icv_len = k->wk_cipher->ic_trailer; 748 break; 749 case WLAN_CIPHER_SUITE_TKIP: 750 default: 751 IMPROVE(); 752 return (0); 753 }; 754 755 ni = vap->iv_bss; 756 sta = ieee80211_find_sta(vif, ni->ni_bssid); 757 if (sta != NULL) { 758 struct lkpi_sta *lsta; 759 760 lsta = STA_TO_LSTA(sta); 761 lsta->kc = kc; 762 } 763 764 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 765 if (error != 0) { 766 /* XXX-BZ leaking kc currently */ 767 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 768 return (0); 769 } else { 770 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 771 "flags %#10x\n", __func__, 772 kc->keyidx, kc->hw_key_idx, kc->flags); 773 return (1); 774 } 775 } 776 777 static int 778 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 779 { 780 781 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 782 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 783 } 784 static int 785 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 786 { 787 788 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 789 } 790 #endif 791 792 static u_int 793 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 794 { 795 struct netdev_hw_addr_list *mc_list; 796 struct netdev_hw_addr *addr; 797 798 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 799 __func__, arg, sdl, cnt)); 800 801 mc_list = arg; 802 /* If it is on the list already skip it. */ 803 netdev_hw_addr_list_for_each(addr, mc_list) { 804 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 805 return (0); 806 } 807 808 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 809 if (addr == NULL) 810 return (0); 811 812 INIT_LIST_HEAD(&addr->addr_list); 813 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 814 /* XXX this should be a netdev function? */ 815 list_add(&addr->addr_list, &mc_list->addr_list); 816 mc_list->count++; 817 818 #ifdef LINUXKPI_DEBUG_80211 819 if (linuxkpi_debug_80211 & D80211_TRACE) 820 printf("%s:%d: mc_list count %d: added %6D\n", 821 __func__, __LINE__, mc_list->count, addr->addr, ":"); 822 #endif 823 824 return (1); 825 } 826 827 static void 828 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 829 { 830 struct lkpi_hw *lhw; 831 struct ieee80211_hw *hw; 832 struct netdev_hw_addr_list mc_list; 833 struct list_head *le, *next; 834 struct netdev_hw_addr *addr; 835 struct ieee80211vap *vap; 836 u64 mc; 837 unsigned int changed_flags, total_flags; 838 839 lhw = ic->ic_softc; 840 841 if (lhw->ops->prepare_multicast == NULL || 842 lhw->ops->configure_filter == NULL) 843 return; 844 845 if (!lhw->update_mc && !force) 846 return; 847 848 changed_flags = total_flags = 0; 849 mc_list.count = 0; 850 INIT_LIST_HEAD(&mc_list.addr_list); 851 if (ic->ic_allmulti == 0) { 852 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 853 if_foreach_llmaddr(vap->iv_ifp, 854 lkpi_ic_update_mcast_copy, &mc_list); 855 } else { 856 changed_flags |= FIF_ALLMULTI; 857 } 858 859 hw = LHW_TO_HW(lhw); 860 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 861 /* 862 * XXX-BZ make sure to get this sorted what is a change, 863 * what gets all set; what was already set? 864 */ 865 total_flags = changed_flags; 866 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 867 868 #ifdef LINUXKPI_DEBUG_80211 869 if (linuxkpi_debug_80211 & D80211_TRACE) 870 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 871 __func__, changed_flags, mc_list.count, total_flags); 872 #endif 873 874 if (mc_list.count != 0) { 875 list_for_each_safe(le, next, &mc_list.addr_list) { 876 addr = list_entry(le, struct netdev_hw_addr, addr_list); 877 free(addr, M_LKPI80211); 878 mc_list.count--; 879 } 880 } 881 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 882 __func__, &mc_list, mc_list.count)); 883 } 884 885 static enum ieee80211_bss_changed 886 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 887 struct ieee80211vap *vap, const char *_f, int _l) 888 { 889 enum ieee80211_bss_changed bss_changed; 890 891 bss_changed = 0; 892 893 #ifdef LINUXKPI_DEBUG_80211 894 if (linuxkpi_debug_80211 & D80211_TRACE) 895 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 896 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 897 "sync_device_ts %u bss_changed %#08x\n", 898 __func__, __LINE__, _f, _l, 899 vif->cfg.assoc, vif->cfg.aid, 900 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 901 vif->bss_conf.sync_dtim_count, 902 (uintmax_t)vif->bss_conf.sync_tsf, 903 vif->bss_conf.sync_device_ts, 904 bss_changed); 905 #endif 906 907 if (vif->bss_conf.beacon_int != ni->ni_intval) { 908 vif->bss_conf.beacon_int = ni->ni_intval; 909 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 910 if (vif->bss_conf.beacon_int < 16) 911 vif->bss_conf.beacon_int = 16; 912 bss_changed |= BSS_CHANGED_BEACON_INT; 913 } 914 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 915 vap->iv_dtim_period > 0) { 916 vif->bss_conf.dtim_period = vap->iv_dtim_period; 917 bss_changed |= BSS_CHANGED_BEACON_INFO; 918 } 919 920 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 921 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 922 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 923 924 #ifdef LINUXKPI_DEBUG_80211 925 if (linuxkpi_debug_80211 & D80211_TRACE) 926 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 927 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 928 "sync_device_ts %u bss_changed %#08x\n", 929 __func__, __LINE__, _f, _l, 930 vif->cfg.assoc, vif->cfg.aid, 931 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 932 vif->bss_conf.sync_dtim_count, 933 (uintmax_t)vif->bss_conf.sync_tsf, 934 vif->bss_conf.sync_device_ts, 935 bss_changed); 936 #endif 937 938 return (bss_changed); 939 } 940 941 static void 942 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 943 { 944 struct ieee80211_hw *hw; 945 int error; 946 bool cancel; 947 948 LKPI_80211_LHW_SCAN_LOCK(lhw); 949 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 950 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 951 if (!cancel) 952 return; 953 954 hw = LHW_TO_HW(lhw); 955 956 IEEE80211_UNLOCK(lhw->ic); 957 LKPI_80211_LHW_LOCK(lhw); 958 /* Need to cancel the scan. */ 959 lkpi_80211_mo_cancel_hw_scan(hw, vif); 960 LKPI_80211_LHW_UNLOCK(lhw); 961 962 /* Need to make sure we see ieee80211_scan_completed. */ 963 LKPI_80211_LHW_SCAN_LOCK(lhw); 964 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 965 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 966 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 967 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 968 969 IEEE80211_LOCK(lhw->ic); 970 971 if (cancel) 972 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 973 __func__, error, lhw, vif); 974 } 975 976 static void 977 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 978 { 979 struct lkpi_hw *lhw; 980 int error; 981 bool old; 982 983 old = hw->conf.flags & IEEE80211_CONF_IDLE; 984 if (old == new) 985 return; 986 987 hw->conf.flags ^= IEEE80211_CONF_IDLE; 988 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 989 if (error != 0 && error != EOPNOTSUPP) { 990 lhw = HW_TO_LHW(hw); 991 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 992 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 993 } 994 } 995 996 static enum ieee80211_bss_changed 997 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 998 struct lkpi_hw *lhw) 999 { 1000 enum ieee80211_bss_changed changed; 1001 1002 changed = 0; 1003 sta->aid = 0; 1004 if (vif->cfg.assoc) { 1005 1006 lhw->update_mc = true; 1007 lkpi_update_mcast_filter(lhw->ic, true); 1008 1009 vif->cfg.assoc = false; 1010 vif->cfg.aid = 0; 1011 changed |= BSS_CHANGED_ASSOC; 1012 IMPROVE(); 1013 1014 /* 1015 * Executing the bss_info_changed(BSS_CHANGED_ASSOC) with 1016 * assoc = false right away here will remove the sta from 1017 * firmware for iwlwifi. 1018 * We no longer do this but only return the BSS_CHNAGED value. 1019 * The caller is responsible for removing the sta gong to 1020 * IEEE80211_STA_NOTEXIST and then executing the 1021 * bss_info_changed() update. 1022 * See lkpi_sta_run_to_init() for more detailed comment. 1023 */ 1024 } 1025 1026 return (changed); 1027 } 1028 1029 static void 1030 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 1031 bool dequeue_seen, bool no_emptyq) 1032 { 1033 struct lkpi_txq *ltxq; 1034 int tid; 1035 bool ltxq_empty; 1036 1037 /* Wake up all queues to know they are allocated in the driver. */ 1038 for (tid = 0; tid < nitems(sta->txq); tid++) { 1039 1040 if (tid == IEEE80211_NUM_TIDS) { 1041 IMPROVE("station specific?"); 1042 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 1043 continue; 1044 } else if (tid >= hw->queues) 1045 continue; 1046 1047 if (sta->txq[tid] == NULL) 1048 continue; 1049 1050 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1051 if (dequeue_seen && !ltxq->seen_dequeue) 1052 continue; 1053 1054 LKPI_80211_LTXQ_LOCK(ltxq); 1055 ltxq_empty = skb_queue_empty(<xq->skbq); 1056 LKPI_80211_LTXQ_UNLOCK(ltxq); 1057 if (no_emptyq && ltxq_empty) 1058 continue; 1059 1060 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 1061 } 1062 } 1063 1064 /* -------------------------------------------------------------------------- */ 1065 1066 static int 1067 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1068 { 1069 1070 return (0); 1071 } 1072 1073 /* lkpi_iv_newstate() handles the stop scan case generally. */ 1074 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 1075 1076 static int 1077 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1078 { 1079 struct linuxkpi_ieee80211_channel *chan; 1080 struct lkpi_chanctx *lchanctx; 1081 struct ieee80211_chanctx_conf *chanctx_conf; 1082 struct lkpi_hw *lhw; 1083 struct ieee80211_hw *hw; 1084 struct lkpi_vif *lvif; 1085 struct ieee80211_vif *vif; 1086 struct ieee80211_node *ni; 1087 struct lkpi_sta *lsta; 1088 enum ieee80211_bss_changed bss_changed; 1089 struct ieee80211_prep_tx_info prep_tx_info; 1090 uint32_t changed; 1091 int error; 1092 1093 /* 1094 * In here we use vap->iv_bss until lvif->lvif_bss is set. 1095 * For all later (STATE >= AUTH) functions we need to use the lvif 1096 * cache which will be tracked even through (*iv_update_bss)(). 1097 */ 1098 1099 if (vap->iv_bss == NULL) { 1100 ic_printf(vap->iv_ic, "%s: no iv_bss for vap %p\n", __func__, vap); 1101 return (EINVAL); 1102 } 1103 /* 1104 * Keep the ni alive locally. In theory (and practice) iv_bss can change 1105 * once we unlock here. This is due to net80211 allowing state changes 1106 * and new join1() despite having an active node as well as due to 1107 * the fact that the iv_bss can be swapped under the hood in (*iv_update_bss). 1108 */ 1109 ni = ieee80211_ref_node(vap->iv_bss); 1110 if (ni->ni_chan == NULL || ni->ni_chan == IEEE80211_CHAN_ANYC) { 1111 ic_printf(vap->iv_ic, "%s: no channel set for iv_bss ni %p " 1112 "on vap %p\n", __func__, ni, vap); 1113 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1114 return (EINVAL); 1115 } 1116 1117 lhw = vap->iv_ic->ic_softc; 1118 chan = lkpi_find_lkpi80211_chan(lhw, ni->ni_chan); 1119 if (chan == NULL) { 1120 ic_printf(vap->iv_ic, "%s: failed to get LKPI channel from " 1121 "iv_bss ni %p on vap %p\n", __func__, ni, vap); 1122 ieee80211_free_node(ni); /* Error handling for the local ni. */ 1123 return (ESRCH); 1124 } 1125 1126 hw = LHW_TO_HW(lhw); 1127 lvif = VAP_TO_LVIF(vap); 1128 vif = LVIF_TO_VIF(lvif); 1129 1130 LKPI_80211_LVIF_LOCK(lvif); 1131 /* XXX-BZ KASSERT later? */ 1132 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) { 1133 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1134 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1135 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1136 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1137 lvif->lvif_bss_synched); 1138 return (EBUSY); 1139 } 1140 LKPI_80211_LVIF_UNLOCK(lvif); 1141 1142 IEEE80211_UNLOCK(vap->iv_ic); 1143 LKPI_80211_LHW_LOCK(lhw); 1144 1145 /* Add chanctx (or if exists, change it). */ 1146 if (vif->chanctx_conf != NULL) { 1147 chanctx_conf = vif->chanctx_conf; 1148 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1149 IMPROVE("diff changes for changed, working on live copy, rcu"); 1150 } else { 1151 /* Keep separate alloc as in Linux this is rcu managed? */ 1152 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 1153 M_LKPI80211, M_WAITOK | M_ZERO); 1154 chanctx_conf = &lchanctx->chanctx_conf; 1155 } 1156 1157 chanctx_conf->rx_chains_dynamic = 1; 1158 chanctx_conf->rx_chains_static = 1; 1159 chanctx_conf->radar_enabled = 1160 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 1161 chanctx_conf->def.chan = chan; 1162 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 1163 chanctx_conf->def.center_freq1 = chan->center_freq; 1164 chanctx_conf->def.center_freq2 = 0; 1165 IMPROVE("Check vht_cap from band not just chan?"); 1166 KASSERT(ni->ni_chan != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC, 1167 ("%s:%d: ni %p ni_chan %p\n", __func__, __LINE__, ni, ni->ni_chan)); 1168 #ifdef LKPI_80211_HT 1169 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 1170 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 1171 chanctx_conf->def.width = NL80211_CHAN_WIDTH_40; 1172 } else 1173 chanctx_conf->def.width = NL80211_CHAN_WIDTH_20; 1174 } 1175 #endif 1176 #ifdef LKPI_80211_VHT 1177 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 1178 #ifdef __notyet__ 1179 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 1180 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80P80; 1181 chanctx_conf->def.center_freq2 = 0; /* XXX */ 1182 } else 1183 #endif 1184 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 1185 chanctx_conf->def.width = NL80211_CHAN_WIDTH_160; 1186 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 1187 chanctx_conf->def.width = NL80211_CHAN_WIDTH_80; 1188 } 1189 #endif 1190 /* Responder ... */ 1191 chanctx_conf->min_def.chan = chan; 1192 chanctx_conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 1193 chanctx_conf->min_def.center_freq1 = chan->center_freq; 1194 chanctx_conf->min_def.center_freq2 = 0; 1195 IMPROVE("currently 20_NOHT min_def only"); 1196 1197 /* Set bss info (bss_info_changed). */ 1198 bss_changed = 0; 1199 vif->bss_conf.bssid = ni->ni_bssid; 1200 bss_changed |= BSS_CHANGED_BSSID; 1201 vif->bss_conf.txpower = ni->ni_txpower; 1202 bss_changed |= BSS_CHANGED_TXPOWER; 1203 vif->cfg.idle = false; 1204 bss_changed |= BSS_CHANGED_IDLE; 1205 1206 /* vif->bss_conf.basic_rates ? Where exactly? */ 1207 1208 /* Should almost assert it is this. */ 1209 vif->cfg.assoc = false; 1210 vif->cfg.aid = 0; 1211 1212 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1213 1214 error = 0; 1215 if (vif->chanctx_conf != NULL) { 1216 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 1217 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 1218 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 1219 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 1220 lkpi_80211_mo_change_chanctx(hw, chanctx_conf, changed); 1221 } else { 1222 error = lkpi_80211_mo_add_chanctx(hw, chanctx_conf); 1223 if (error == 0 || error == EOPNOTSUPP) { 1224 vif->bss_conf.chandef.chan = chanctx_conf->def.chan; 1225 vif->bss_conf.chandef.width = chanctx_conf->def.width; 1226 vif->bss_conf.chandef.center_freq1 = 1227 chanctx_conf->def.center_freq1; 1228 #ifdef LKPI_80211_HT 1229 if (vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_40) { 1230 /* Note: it is 10 not 20. */ 1231 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) 1232 vif->bss_conf.chandef.center_freq1 += 10; 1233 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 1234 vif->bss_conf.chandef.center_freq1 -= 10; 1235 } 1236 #endif 1237 vif->bss_conf.chandef.center_freq2 = 1238 chanctx_conf->def.center_freq2; 1239 } else { 1240 ic_printf(vap->iv_ic, "%s:%d: mo_add_chanctx " 1241 "failed: %d\n", __func__, __LINE__, error); 1242 goto out; 1243 } 1244 1245 vif->bss_conf.chanctx_conf = chanctx_conf; 1246 1247 /* Assign vif chanctx. */ 1248 if (error == 0) 1249 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1250 &vif->bss_conf, chanctx_conf); 1251 if (error == EOPNOTSUPP) 1252 error = 0; 1253 if (error != 0) { 1254 ic_printf(vap->iv_ic, "%s:%d: mo_assign_vif_chanctx " 1255 "failed: %d\n", __func__, __LINE__, error); 1256 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1257 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1258 free(lchanctx, M_LKPI80211); 1259 goto out; 1260 } 1261 } 1262 IMPROVE("update radiotap chan fields too"); 1263 1264 /* RATES */ 1265 IMPROVE("bss info: not all needs to come now and rates are missing"); 1266 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1267 1268 /* 1269 * Given ni and lsta are 1:1 from alloc to free we can assert that 1270 * ni always has lsta data attach despite net80211 node swapping 1271 * under the hoods. 1272 */ 1273 KASSERT(ni->ni_drv_data != NULL, ("%s: ni %p ni_drv_data %p\n", 1274 __func__, ni, ni->ni_drv_data)); 1275 lsta = ni->ni_drv_data; 1276 1277 LKPI_80211_LVIF_LOCK(lvif); 1278 /* Re-check given (*iv_update_bss) could have happened. */ 1279 /* XXX-BZ KASSERT later? or deal as error? */ 1280 if (lvif->lvif_bss_synched || lvif->lvif_bss != NULL) 1281 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1282 "lvif_bss->ni %p synched %d, ni %p lsta %p\n", __func__, __LINE__, 1283 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1284 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1285 lvif->lvif_bss_synched, ni, lsta); 1286 1287 /* 1288 * Reference the ni for this cache of lsta/ni on lvif->lvif_bss 1289 * essentially out lsta version of the iv_bss. 1290 * Do NOT use iv_bss here anymore as that may have diverged from our 1291 * function local ni already and would lead to inconsistencies. 1292 */ 1293 ieee80211_ref_node(ni); 1294 lvif->lvif_bss = lsta; 1295 lvif->lvif_bss_synched = true; 1296 1297 /* Insert the [l]sta into the list of known stations. */ 1298 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1299 LKPI_80211_LVIF_UNLOCK(lvif); 1300 1301 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1302 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1303 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1304 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1305 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1306 if (error != 0) { 1307 IMPROVE("do we need to undo the chan ctx?"); 1308 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1309 "failed: %d\n", __func__, __LINE__, error); 1310 goto out; 1311 } 1312 #if 0 1313 lsta->added_to_drv = true; /* mo manages. */ 1314 #endif 1315 1316 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1317 1318 #if 0 1319 /* 1320 * Wakeup all queues now that sta is there so we have as much time to 1321 * possibly prepare the queue in the driver to be ready for the 1st 1322 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1323 * is no guarantee or way to check. 1324 * XXX-BZ and by now we know that this does not work on all drivers 1325 * for all queues. 1326 */ 1327 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1328 #endif 1329 1330 /* Start mgd_prepare_tx. */ 1331 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1332 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1333 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1334 lsta->in_mgd = true; 1335 1336 /* 1337 * What is going to happen next: 1338 * - <twiddle> .. we should end up in "auth_to_assoc" 1339 * - event_callback 1340 * - update sta_state (NONE to AUTH) 1341 * - mgd_complete_tx 1342 * (ideally we'd do that on a callback for something else ...) 1343 */ 1344 1345 out: 1346 LKPI_80211_LHW_UNLOCK(lhw); 1347 IEEE80211_LOCK(vap->iv_ic); 1348 /* 1349 * Release the reference that keop the ni stable locally 1350 * during the work of this function. 1351 */ 1352 if (ni != NULL) 1353 ieee80211_free_node(ni); 1354 return (error); 1355 } 1356 1357 static int 1358 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1359 { 1360 struct lkpi_hw *lhw; 1361 struct ieee80211_hw *hw; 1362 struct lkpi_vif *lvif; 1363 struct ieee80211_vif *vif; 1364 struct ieee80211_node *ni; 1365 struct lkpi_sta *lsta; 1366 struct ieee80211_sta *sta; 1367 struct ieee80211_prep_tx_info prep_tx_info; 1368 int error; 1369 1370 lhw = vap->iv_ic->ic_softc; 1371 hw = LHW_TO_HW(lhw); 1372 lvif = VAP_TO_LVIF(vap); 1373 vif = LVIF_TO_VIF(lvif); 1374 1375 LKPI_80211_LVIF_LOCK(lvif); 1376 #ifdef LINUXKPI_DEBUG_80211 1377 /* XXX-BZ KASSERT later; state going down so no action. */ 1378 if (lvif->lvif_bss == NULL) 1379 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1380 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1381 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1382 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1383 lvif->lvif_bss_synched); 1384 #endif 1385 1386 lsta = lvif->lvif_bss; 1387 LKPI_80211_LVIF_UNLOCK(lvif); 1388 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1389 "lvif %p vap %p\n", __func__, 1390 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1391 ni = lsta->ni; /* Reference held for lvif_bss. */ 1392 sta = LSTA_TO_STA(lsta); 1393 1394 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1395 1396 IEEE80211_UNLOCK(vap->iv_ic); 1397 LKPI_80211_LHW_LOCK(lhw); 1398 1399 /* flush, drop. */ 1400 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1401 1402 /* Wake tx queues to get packet(s) out. */ 1403 lkpi_wake_tx_queues(hw, sta, true, true); 1404 1405 /* flush, no drop */ 1406 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1407 1408 /* End mgd_complete_tx. */ 1409 if (lsta->in_mgd) { 1410 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1411 prep_tx_info.success = false; 1412 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1413 lsta->in_mgd = false; 1414 } 1415 1416 /* sync_rx_queues */ 1417 lkpi_80211_mo_sync_rx_queues(hw); 1418 1419 /* sta_pre_rcu_remove */ 1420 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1421 1422 /* Take the station down. */ 1423 1424 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1425 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1426 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1427 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1428 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1429 if (error != 0) { 1430 IMPROVE("do we need to undo the chan ctx?"); 1431 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1432 "failed: %d\n", __func__, __LINE__, error); 1433 goto out; 1434 } 1435 #if 0 1436 lsta->added_to_drv = false; /* mo manages. */ 1437 #endif 1438 1439 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1440 1441 LKPI_80211_LVIF_LOCK(lvif); 1442 /* Remove ni reference for this cache of lsta. */ 1443 lvif->lvif_bss = NULL; 1444 lvif->lvif_bss_synched = false; 1445 LKPI_80211_LVIF_UNLOCK(lvif); 1446 lkpi_lsta_remove(lsta, lvif); 1447 /* 1448 * The very last release the reference on the ni for the ni/lsta on 1449 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1450 * and potentially freed. 1451 */ 1452 ieee80211_free_node(ni); 1453 1454 /* conf_tx */ 1455 1456 /* Take the chan ctx down. */ 1457 if (vif->chanctx_conf != NULL) { 1458 struct lkpi_chanctx *lchanctx; 1459 struct ieee80211_chanctx_conf *chanctx_conf; 1460 1461 chanctx_conf = vif->chanctx_conf; 1462 /* Remove vif context. */ 1463 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1464 /* NB: vif->chanctx_conf is NULL now. */ 1465 1466 lkpi_hw_conf_idle(hw, true); 1467 1468 /* Remove chan ctx. */ 1469 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1470 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1471 free(lchanctx, M_LKPI80211); 1472 } 1473 1474 out: 1475 LKPI_80211_LHW_UNLOCK(lhw); 1476 IEEE80211_LOCK(vap->iv_ic); 1477 return (error); 1478 } 1479 1480 static int 1481 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1482 { 1483 int error; 1484 1485 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1486 if (error == 0) 1487 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1488 return (error); 1489 } 1490 1491 static int 1492 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1493 { 1494 struct lkpi_hw *lhw; 1495 struct ieee80211_hw *hw; 1496 struct lkpi_vif *lvif; 1497 struct ieee80211_vif *vif; 1498 struct lkpi_sta *lsta; 1499 struct ieee80211_prep_tx_info prep_tx_info; 1500 int error; 1501 1502 lhw = vap->iv_ic->ic_softc; 1503 hw = LHW_TO_HW(lhw); 1504 lvif = VAP_TO_LVIF(vap); 1505 vif = LVIF_TO_VIF(lvif); 1506 1507 IEEE80211_UNLOCK(vap->iv_ic); 1508 LKPI_80211_LHW_LOCK(lhw); 1509 1510 LKPI_80211_LVIF_LOCK(lvif); 1511 /* XXX-BZ KASSERT later? */ 1512 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1513 #ifdef LINUXKPI_DEBUG_80211 1514 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1515 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1516 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1517 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1518 lvif->lvif_bss_synched); 1519 #endif 1520 error = ENOTRECOVERABLE; 1521 LKPI_80211_LVIF_UNLOCK(lvif); 1522 goto out; 1523 } 1524 lsta = lvif->lvif_bss; 1525 LKPI_80211_LVIF_UNLOCK(lvif); 1526 1527 KASSERT(lsta != NULL, ("%s: lsta %p\n", __func__, lsta)); 1528 1529 /* Finish auth. */ 1530 IMPROVE("event callback"); 1531 1532 /* Update sta_state (NONE to AUTH). */ 1533 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1534 "NONE: %#x\n", __func__, lsta, lsta->state)); 1535 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1536 if (error != 0) { 1537 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1538 "failed: %d\n", __func__, __LINE__, error); 1539 goto out; 1540 } 1541 1542 /* End mgd_complete_tx. */ 1543 if (lsta->in_mgd) { 1544 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1545 prep_tx_info.success = true; 1546 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1547 lsta->in_mgd = false; 1548 } 1549 1550 /* Now start assoc. */ 1551 1552 /* Start mgd_prepare_tx. */ 1553 if (!lsta->in_mgd) { 1554 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1555 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1556 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1557 lsta->in_mgd = true; 1558 } 1559 1560 /* Wake tx queue to get packet out. */ 1561 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1562 1563 /* 1564 * <twiddle> .. we end up in "assoc_to_run" 1565 * - update sta_state (AUTH to ASSOC) 1566 * - conf_tx [all] 1567 * - bss_info_changed (assoc, aid, ssid, ..) 1568 * - change_chanctx (if needed) 1569 * - event_callback 1570 * - mgd_complete_tx 1571 */ 1572 1573 out: 1574 LKPI_80211_LHW_UNLOCK(lhw); 1575 IEEE80211_LOCK(vap->iv_ic); 1576 return (error); 1577 } 1578 1579 /* auth_to_auth, assoc_to_assoc. */ 1580 static int 1581 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1582 { 1583 struct lkpi_hw *lhw; 1584 struct ieee80211_hw *hw; 1585 struct lkpi_vif *lvif; 1586 struct ieee80211_vif *vif; 1587 struct lkpi_sta *lsta; 1588 struct ieee80211_prep_tx_info prep_tx_info; 1589 int error; 1590 1591 lhw = vap->iv_ic->ic_softc; 1592 hw = LHW_TO_HW(lhw); 1593 lvif = VAP_TO_LVIF(vap); 1594 vif = LVIF_TO_VIF(lvif); 1595 1596 IEEE80211_UNLOCK(vap->iv_ic); 1597 LKPI_80211_LHW_LOCK(lhw); 1598 1599 LKPI_80211_LVIF_LOCK(lvif); 1600 /* XXX-BZ KASSERT later? */ 1601 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1602 #ifdef LINUXKPI_DEBUG_80211 1603 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1604 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1605 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1606 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1607 lvif->lvif_bss_synched); 1608 #endif 1609 LKPI_80211_LVIF_UNLOCK(lvif); 1610 error = ENOTRECOVERABLE; 1611 goto out; 1612 } 1613 lsta = lvif->lvif_bss; 1614 LKPI_80211_LVIF_UNLOCK(lvif); 1615 1616 KASSERT(lsta != NULL, ("%s: lsta %p! lvif %p vap %p\n", __func__, 1617 lsta, lvif, vap)); 1618 1619 IMPROVE("event callback?"); 1620 1621 /* End mgd_complete_tx. */ 1622 if (lsta->in_mgd) { 1623 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1624 prep_tx_info.success = false; 1625 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1626 lsta->in_mgd = false; 1627 } 1628 1629 /* Now start assoc. */ 1630 1631 /* Start mgd_prepare_tx. */ 1632 if (!lsta->in_mgd) { 1633 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1634 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1635 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1636 lsta->in_mgd = true; 1637 } 1638 1639 error = 0; 1640 out: 1641 LKPI_80211_LHW_UNLOCK(lhw); 1642 IEEE80211_LOCK(vap->iv_ic); 1643 1644 return (error); 1645 } 1646 1647 static int 1648 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1649 { 1650 struct lkpi_hw *lhw; 1651 struct ieee80211_hw *hw; 1652 struct lkpi_vif *lvif; 1653 struct ieee80211_vif *vif; 1654 struct ieee80211_node *ni; 1655 struct lkpi_sta *lsta; 1656 struct ieee80211_sta *sta; 1657 struct ieee80211_prep_tx_info prep_tx_info; 1658 enum ieee80211_bss_changed bss_changed; 1659 int error; 1660 1661 lhw = vap->iv_ic->ic_softc; 1662 hw = LHW_TO_HW(lhw); 1663 lvif = VAP_TO_LVIF(vap); 1664 vif = LVIF_TO_VIF(lvif); 1665 1666 IEEE80211_UNLOCK(vap->iv_ic); 1667 LKPI_80211_LHW_LOCK(lhw); 1668 1669 LKPI_80211_LVIF_LOCK(lvif); 1670 #ifdef LINUXKPI_DEBUG_80211 1671 /* XXX-BZ KASSERT later; state going down so no action. */ 1672 if (lvif->lvif_bss == NULL) 1673 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1674 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1675 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1676 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1677 lvif->lvif_bss_synched); 1678 #endif 1679 lsta = lvif->lvif_bss; 1680 LKPI_80211_LVIF_UNLOCK(lvif); 1681 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1682 "lvif %p vap %p\n", __func__, 1683 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1684 1685 ni = lsta->ni; /* Reference held for lvif_bss. */ 1686 sta = LSTA_TO_STA(lsta); 1687 1688 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1689 1690 /* flush, drop. */ 1691 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1692 1693 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1694 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1695 !lsta->in_mgd) { 1696 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1697 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1698 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1699 lsta->in_mgd = true; 1700 } 1701 1702 LKPI_80211_LHW_UNLOCK(lhw); 1703 IEEE80211_LOCK(vap->iv_ic); 1704 1705 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1706 error = lvif->iv_newstate(vap, nstate, arg); 1707 if (error != 0) { 1708 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1709 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1710 goto outni; 1711 } 1712 1713 IEEE80211_UNLOCK(vap->iv_ic); 1714 LKPI_80211_LHW_LOCK(lhw); 1715 1716 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1717 1718 /* Wake tx queues to get packet(s) out. */ 1719 lkpi_wake_tx_queues(hw, sta, true, true); 1720 1721 /* flush, no drop */ 1722 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1723 1724 /* End mgd_complete_tx. */ 1725 if (lsta->in_mgd) { 1726 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1727 prep_tx_info.success = false; 1728 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1729 lsta->in_mgd = false; 1730 } 1731 1732 /* sync_rx_queues */ 1733 lkpi_80211_mo_sync_rx_queues(hw); 1734 1735 /* sta_pre_rcu_remove */ 1736 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1737 1738 /* Take the station down. */ 1739 1740 /* Update sta and change state (from AUTH) to NONE. */ 1741 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1742 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1743 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1744 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1745 if (error != 0) { 1746 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1747 "failed: %d\n", __func__, __LINE__, error); 1748 goto out; 1749 } 1750 1751 /* See comment in lkpi_sta_run_to_init(). */ 1752 bss_changed = 0; 1753 bss_changed |= lkpi_disassoc(sta, vif, lhw); 1754 1755 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1756 1757 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1758 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1759 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1760 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1761 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1762 if (error != 0) { 1763 IMPROVE("do we need to undo the chan ctx?"); 1764 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1765 "failed: %d\n", __func__, __LINE__, error); 1766 goto out; 1767 } 1768 1769 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1770 1771 IMPROVE("Any bss_info changes to announce?"); 1772 vif->bss_conf.qos = 0; 1773 bss_changed |= BSS_CHANGED_QOS; 1774 vif->cfg.ssid_len = 0; 1775 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1776 bss_changed |= BSS_CHANGED_BSSID; 1777 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1778 1779 LKPI_80211_LVIF_LOCK(lvif); 1780 /* Remove ni reference for this cache of lsta. */ 1781 lvif->lvif_bss = NULL; 1782 lvif->lvif_bss_synched = false; 1783 LKPI_80211_LVIF_UNLOCK(lvif); 1784 lkpi_lsta_remove(lsta, lvif); 1785 /* 1786 * The very last release the reference on the ni for the ni/lsta on 1787 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 1788 * and potentially freed. 1789 */ 1790 ieee80211_free_node(ni); 1791 1792 /* conf_tx */ 1793 1794 /* Take the chan ctx down. */ 1795 if (vif->chanctx_conf != NULL) { 1796 struct lkpi_chanctx *lchanctx; 1797 struct ieee80211_chanctx_conf *chanctx_conf; 1798 1799 chanctx_conf = vif->chanctx_conf; 1800 /* Remove vif context. */ 1801 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1802 /* NB: vif->chanctx_conf is NULL now. */ 1803 1804 lkpi_hw_conf_idle(hw, true); 1805 1806 /* Remove chan ctx. */ 1807 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 1808 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 1809 free(lchanctx, M_LKPI80211); 1810 } 1811 1812 error = EALREADY; 1813 out: 1814 LKPI_80211_LHW_UNLOCK(lhw); 1815 IEEE80211_LOCK(vap->iv_ic); 1816 outni: 1817 return (error); 1818 } 1819 1820 static int 1821 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1822 { 1823 int error; 1824 1825 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1826 if (error != 0 && error != EALREADY) 1827 return (error); 1828 1829 /* At this point iv_bss is long a new node! */ 1830 1831 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1832 return (error); 1833 } 1834 1835 static int 1836 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1837 { 1838 int error; 1839 1840 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1841 return (error); 1842 } 1843 1844 static int 1845 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1846 { 1847 int error; 1848 1849 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1850 return (error); 1851 } 1852 1853 static int 1854 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1855 { 1856 struct lkpi_hw *lhw; 1857 struct ieee80211_hw *hw; 1858 struct lkpi_vif *lvif; 1859 struct ieee80211_vif *vif; 1860 struct ieee80211_node *ni; 1861 struct lkpi_sta *lsta; 1862 struct ieee80211_sta *sta; 1863 struct ieee80211_prep_tx_info prep_tx_info; 1864 enum ieee80211_bss_changed bss_changed; 1865 int error; 1866 1867 lhw = vap->iv_ic->ic_softc; 1868 hw = LHW_TO_HW(lhw); 1869 lvif = VAP_TO_LVIF(vap); 1870 vif = LVIF_TO_VIF(lvif); 1871 1872 IEEE80211_UNLOCK(vap->iv_ic); 1873 LKPI_80211_LHW_LOCK(lhw); 1874 1875 LKPI_80211_LVIF_LOCK(lvif); 1876 /* XXX-BZ KASSERT later? */ 1877 if (!lvif->lvif_bss_synched || lvif->lvif_bss == NULL) { 1878 #ifdef LINUXKPI_DEBUG_80211 1879 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 1880 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 1881 lvif, vap, vap->iv_bss, lvif->lvif_bss, 1882 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 1883 lvif->lvif_bss_synched); 1884 #endif 1885 LKPI_80211_LVIF_UNLOCK(lvif); 1886 error = ENOTRECOVERABLE; 1887 goto out; 1888 } 1889 lsta = lvif->lvif_bss; 1890 LKPI_80211_LVIF_UNLOCK(lvif); 1891 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 1892 "lvif %p vap %p\n", __func__, 1893 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 1894 1895 ni = lsta->ni; /* Reference held for lvif_bss. */ 1896 1897 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1898 "and to lesser extend ieee80211_notify_node_join"); 1899 1900 /* Finish assoc. */ 1901 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1902 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1903 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1904 sta = LSTA_TO_STA(lsta); 1905 sta->aid = IEEE80211_NODE_AID(ni); 1906 #ifdef LKPI_80211_WME 1907 if (vap->iv_flags & IEEE80211_F_WME) 1908 sta->wme = true; 1909 #endif 1910 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1911 if (error != 0) { 1912 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1913 "failed: %d\n", __func__, __LINE__, error); 1914 goto out; 1915 } 1916 1917 IMPROVE("wme / conf_tx [all]"); 1918 1919 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1920 bss_changed = 0; 1921 #ifdef LKPI_80211_WME 1922 bss_changed |= lkpi_wme_update(lhw, vap, true); 1923 #endif 1924 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 1925 vif->cfg.assoc = true; 1926 vif->cfg.aid = IEEE80211_NODE_AID(ni); 1927 bss_changed |= BSS_CHANGED_ASSOC; 1928 } 1929 /* We set SSID but this is not BSSID! */ 1930 vif->cfg.ssid_len = ni->ni_esslen; 1931 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 1932 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1933 vif->bss_conf.use_short_preamble) { 1934 vif->bss_conf.use_short_preamble ^= 1; 1935 /* bss_changed |= BSS_CHANGED_??? */ 1936 } 1937 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1938 vif->bss_conf.use_short_slot) { 1939 vif->bss_conf.use_short_slot ^= 1; 1940 /* bss_changed |= BSS_CHANGED_??? */ 1941 } 1942 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1943 vif->bss_conf.qos) { 1944 vif->bss_conf.qos ^= 1; 1945 bss_changed |= BSS_CHANGED_QOS; 1946 } 1947 1948 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1949 1950 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1951 1952 /* - change_chanctx (if needed) 1953 * - event_callback 1954 */ 1955 1956 /* End mgd_complete_tx. */ 1957 if (lsta->in_mgd) { 1958 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1959 prep_tx_info.success = true; 1960 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1961 lsta->in_mgd = false; 1962 } 1963 1964 lkpi_hw_conf_idle(hw, false); 1965 1966 /* 1967 * And then: 1968 * - (more packets)? 1969 * - set_key 1970 * - set_default_unicast_key 1971 * - set_key (?) 1972 * - ipv6_addr_change (?) 1973 */ 1974 /* Prepare_multicast && configure_filter. */ 1975 lhw->update_mc = true; 1976 lkpi_update_mcast_filter(vap->iv_ic, true); 1977 1978 if (!ieee80211_node_is_authorized(ni)) { 1979 IMPROVE("net80211 does not consider node authorized"); 1980 } 1981 1982 #if defined(LKPI_80211_HT) 1983 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 1984 lkpi_sta_sync_ht_from_ni(sta, ni, NULL); 1985 #endif 1986 1987 /* Update sta_state (ASSOC to AUTHORIZED). */ 1988 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1989 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1990 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1991 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1992 if (error != 0) { 1993 IMPROVE("undo some changes?"); 1994 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 1995 "failed: %d\n", __func__, __LINE__, error); 1996 goto out; 1997 } 1998 1999 /* - drv_config (?) 2000 * - bss_info_changed 2001 * - set_rekey_data (?) 2002 * 2003 * And now we should be passing packets. 2004 */ 2005 IMPROVE("Need that bssid setting, and the keys"); 2006 2007 bss_changed = 0; 2008 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 2009 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2010 2011 out: 2012 LKPI_80211_LHW_UNLOCK(lhw); 2013 IEEE80211_LOCK(vap->iv_ic); 2014 return (error); 2015 } 2016 2017 static int 2018 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2019 { 2020 int error; 2021 2022 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 2023 if (error == 0) 2024 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 2025 return (error); 2026 } 2027 2028 static int 2029 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2030 { 2031 struct lkpi_hw *lhw; 2032 struct ieee80211_hw *hw; 2033 struct lkpi_vif *lvif; 2034 struct ieee80211_vif *vif; 2035 struct ieee80211_node *ni; 2036 struct lkpi_sta *lsta; 2037 struct ieee80211_sta *sta; 2038 struct ieee80211_prep_tx_info prep_tx_info; 2039 #if 0 2040 enum ieee80211_bss_changed bss_changed; 2041 #endif 2042 int error; 2043 2044 lhw = vap->iv_ic->ic_softc; 2045 hw = LHW_TO_HW(lhw); 2046 lvif = VAP_TO_LVIF(vap); 2047 vif = LVIF_TO_VIF(lvif); 2048 2049 LKPI_80211_LVIF_LOCK(lvif); 2050 #ifdef LINUXKPI_DEBUG_80211 2051 /* XXX-BZ KASSERT later; state going down so no action. */ 2052 if (lvif->lvif_bss == NULL) 2053 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2054 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2055 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2056 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2057 lvif->lvif_bss_synched); 2058 #endif 2059 lsta = lvif->lvif_bss; 2060 LKPI_80211_LVIF_UNLOCK(lvif); 2061 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2062 "lvif %p vap %p\n", __func__, 2063 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2064 2065 ni = lsta->ni; /* Reference held for lvif_bss. */ 2066 sta = LSTA_TO_STA(lsta); 2067 2068 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2069 2070 IEEE80211_UNLOCK(vap->iv_ic); 2071 LKPI_80211_LHW_LOCK(lhw); 2072 2073 /* flush, drop. */ 2074 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2075 2076 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2077 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2078 !lsta->in_mgd) { 2079 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2080 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2081 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2082 lsta->in_mgd = true; 2083 } 2084 2085 LKPI_80211_LHW_UNLOCK(lhw); 2086 IEEE80211_LOCK(vap->iv_ic); 2087 2088 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2089 error = lvif->iv_newstate(vap, nstate, arg); 2090 if (error != 0) { 2091 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2092 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2093 goto outni; 2094 } 2095 2096 IEEE80211_UNLOCK(vap->iv_ic); 2097 LKPI_80211_LHW_LOCK(lhw); 2098 2099 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2100 2101 /* Wake tx queues to get packet(s) out. */ 2102 lkpi_wake_tx_queues(hw, sta, true, true); 2103 2104 /* flush, no drop */ 2105 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2106 2107 /* End mgd_complete_tx. */ 2108 if (lsta->in_mgd) { 2109 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2110 prep_tx_info.success = false; 2111 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2112 lsta->in_mgd = false; 2113 } 2114 2115 #if 0 2116 /* sync_rx_queues */ 2117 lkpi_80211_mo_sync_rx_queues(hw); 2118 2119 /* sta_pre_rcu_remove */ 2120 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2121 #endif 2122 2123 /* Take the station down. */ 2124 2125 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2126 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2127 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2128 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2129 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2130 if (error != 0) { 2131 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2132 "failed: %d\n", __func__, __LINE__, error); 2133 goto out; 2134 } 2135 2136 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2137 2138 /* Update sta_state (ASSOC to AUTH). */ 2139 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2140 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2141 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2142 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2143 if (error != 0) { 2144 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2145 "failed: %d\n", __func__, __LINE__, error); 2146 goto out; 2147 } 2148 2149 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2150 2151 #if 0 2152 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2153 lkpi_disassoc(sta, vif, lhw); 2154 #endif 2155 2156 error = EALREADY; 2157 out: 2158 LKPI_80211_LHW_UNLOCK(lhw); 2159 IEEE80211_LOCK(vap->iv_ic); 2160 outni: 2161 return (error); 2162 } 2163 2164 static int 2165 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2166 { 2167 struct lkpi_hw *lhw; 2168 struct ieee80211_hw *hw; 2169 struct lkpi_vif *lvif; 2170 struct ieee80211_vif *vif; 2171 struct ieee80211_node *ni; 2172 struct lkpi_sta *lsta; 2173 struct ieee80211_sta *sta; 2174 struct ieee80211_prep_tx_info prep_tx_info; 2175 enum ieee80211_bss_changed bss_changed; 2176 int error; 2177 2178 lhw = vap->iv_ic->ic_softc; 2179 hw = LHW_TO_HW(lhw); 2180 lvif = VAP_TO_LVIF(vap); 2181 vif = LVIF_TO_VIF(lvif); 2182 2183 IEEE80211_UNLOCK(vap->iv_ic); 2184 LKPI_80211_LHW_LOCK(lhw); 2185 2186 LKPI_80211_LVIF_LOCK(lvif); 2187 #ifdef LINUXKPI_DEBUG_80211 2188 /* XXX-BZ KASSERT later; state going down so no action. */ 2189 if (lvif->lvif_bss == NULL) 2190 ic_printf(vap->iv_ic, "%s:%d: lvif %p vap %p iv_bss %p lvif_bss %p " 2191 "lvif_bss->ni %p synched %d\n", __func__, __LINE__, 2192 lvif, vap, vap->iv_bss, lvif->lvif_bss, 2193 (lvif->lvif_bss != NULL) ? lvif->lvif_bss->ni : NULL, 2194 lvif->lvif_bss_synched); 2195 #endif 2196 lsta = lvif->lvif_bss; 2197 LKPI_80211_LVIF_UNLOCK(lvif); 2198 KASSERT(lsta != NULL && lsta->ni != NULL, ("%s: lsta %p ni %p " 2199 "lvif %p vap %p\n", __func__, 2200 lsta, (lsta != NULL) ? lsta->ni : NULL, lvif, vap)); 2201 2202 ni = lsta->ni; /* Reference held for lvif_bss. */ 2203 sta = LSTA_TO_STA(lsta); 2204 2205 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2206 2207 /* flush, drop. */ 2208 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 2209 2210 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 2211 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 2212 !lsta->in_mgd) { 2213 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2214 prep_tx_info.duration = PREP_TX_INFO_DURATION; 2215 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 2216 lsta->in_mgd = true; 2217 } 2218 2219 LKPI_80211_LHW_UNLOCK(lhw); 2220 IEEE80211_LOCK(vap->iv_ic); 2221 2222 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 2223 error = lvif->iv_newstate(vap, nstate, arg); 2224 if (error != 0) { 2225 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2226 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2227 goto outni; 2228 } 2229 2230 IEEE80211_UNLOCK(vap->iv_ic); 2231 LKPI_80211_LHW_LOCK(lhw); 2232 2233 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2234 2235 /* Wake tx queues to get packet(s) out. */ 2236 lkpi_wake_tx_queues(hw, sta, true, true); 2237 2238 /* flush, no drop */ 2239 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2240 2241 /* End mgd_complete_tx. */ 2242 if (lsta->in_mgd) { 2243 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2244 prep_tx_info.success = false; 2245 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2246 lsta->in_mgd = false; 2247 } 2248 2249 /* sync_rx_queues */ 2250 lkpi_80211_mo_sync_rx_queues(hw); 2251 2252 /* sta_pre_rcu_remove */ 2253 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2254 2255 /* Take the station down. */ 2256 2257 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2258 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2259 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2260 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2261 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2262 if (error != 0) { 2263 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2264 "failed: %d\n", __func__, __LINE__, error); 2265 goto out; 2266 } 2267 2268 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2269 2270 /* Update sta_state (ASSOC to AUTH). */ 2271 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2272 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2273 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2274 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2275 if (error != 0) { 2276 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2277 "failed: %d\n", __func__, __LINE__, error); 2278 goto out; 2279 } 2280 2281 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2282 2283 /* Update sta and change state (from AUTH) to NONE. */ 2284 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2285 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 2286 "AUTH: %#x\n", __func__, lsta, lsta->state)); 2287 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2288 if (error != 0) { 2289 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2290 "failed: %d\n", __func__, __LINE__, error); 2291 goto out; 2292 } 2293 2294 bss_changed = 0; 2295 /* 2296 * Start updating bss info (bss_info_changed) (assoc, aid, ..). 2297 * 2298 * One would expect this to happen when going off AUTHORIZED. 2299 * See comment there; removes the sta from fw if not careful 2300 * (bss_info_changed() change is executed right away). 2301 * 2302 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 2303 * as otherwise drivers (iwlwifi at least) will silently not remove 2304 * the sta from the firmware and when we will add a new one trigger 2305 * a fw assert. 2306 * 2307 * The order which works best so far avoiding early removal or silent 2308 * non-removal seems to be (for iwlwifi::mld-mac80211.c cases; 2309 * the iwlwifi:mac80211.c case still to be tested): 2310 * 1) lkpi_disassoc(): set vif->cfg.assoc = false (aid=0 side effect here) 2311 * 2) call the last sta_state update -> IEEE80211_STA_NOTEXIST 2312 * (removes the sta given assoc is false) 2313 * 3) add the remaining BSS_CHANGED changes and call bss_info_changed() 2314 * 4) call unassign_vif_chanctx 2315 * 5) call lkpi_hw_conf_idle 2316 * 6) call remove_chanctx 2317 */ 2318 bss_changed |= lkpi_disassoc(sta, vif, lhw); 2319 2320 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2321 2322 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 2323 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2324 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 2325 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 2326 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 2327 if (error != 0) { 2328 IMPROVE("do we need to undo the chan ctx?"); 2329 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 2330 "failed: %d\n", __func__, __LINE__, error); 2331 goto out; 2332 } 2333 2334 lkpi_lsta_remove(lsta, lvif); 2335 2336 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 2337 2338 IMPROVE("Any bss_info changes to announce?"); 2339 vif->bss_conf.qos = 0; 2340 bss_changed |= BSS_CHANGED_QOS; 2341 vif->cfg.ssid_len = 0; 2342 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 2343 bss_changed |= BSS_CHANGED_BSSID; 2344 vif->bss_conf.use_short_preamble = false; 2345 vif->bss_conf.qos = false; 2346 /* XXX BSS_CHANGED_???? */ 2347 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2348 2349 LKPI_80211_LVIF_LOCK(lvif); 2350 /* Remove ni reference for this cache of lsta. */ 2351 lvif->lvif_bss = NULL; 2352 lvif->lvif_bss_synched = false; 2353 LKPI_80211_LVIF_UNLOCK(lvif); 2354 /* 2355 * The very last release the reference on the ni for the ni/lsta on 2356 * lvif->lvif_bss. Upon return from this both ni and lsta are invalid 2357 * and potentially freed. 2358 */ 2359 ieee80211_free_node(ni); 2360 2361 /* conf_tx */ 2362 2363 /* Take the chan ctx down. */ 2364 if (vif->chanctx_conf != NULL) { 2365 struct lkpi_chanctx *lchanctx; 2366 struct ieee80211_chanctx_conf *chanctx_conf; 2367 2368 chanctx_conf = vif->chanctx_conf; 2369 /* Remove vif context. */ 2370 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 2371 /* NB: vif->chanctx_conf is NULL now. */ 2372 2373 lkpi_hw_conf_idle(hw, true); 2374 2375 /* Remove chan ctx. */ 2376 lkpi_80211_mo_remove_chanctx(hw, chanctx_conf); 2377 lchanctx = CHANCTX_CONF_TO_LCHANCTX(chanctx_conf); 2378 free(lchanctx, M_LKPI80211); 2379 } 2380 2381 error = EALREADY; 2382 out: 2383 LKPI_80211_LHW_UNLOCK(lhw); 2384 IEEE80211_LOCK(vap->iv_ic); 2385 outni: 2386 return (error); 2387 } 2388 2389 static int 2390 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2391 { 2392 2393 return (lkpi_sta_run_to_init(vap, nstate, arg)); 2394 } 2395 2396 static int 2397 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2398 { 2399 int error; 2400 2401 error = lkpi_sta_run_to_init(vap, nstate, arg); 2402 if (error != 0 && error != EALREADY) 2403 return (error); 2404 2405 /* At this point iv_bss is long a new node! */ 2406 2407 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 2408 return (error); 2409 } 2410 2411 /* -------------------------------------------------------------------------- */ 2412 2413 /* 2414 * The matches the documented state changes in net80211::sta_newstate(). 2415 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 2416 * there are "invalid" (so there is a room for failure here). 2417 */ 2418 struct fsm_state { 2419 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 2420 enum ieee80211_state ostate; 2421 enum ieee80211_state nstate; 2422 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 2423 } sta_state_fsm[] = { 2424 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 2425 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 2426 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 2427 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 2428 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 2429 2430 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2431 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2432 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 2433 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 2434 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 2435 2436 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2437 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2438 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2439 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2440 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2441 2442 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2443 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2444 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2445 2446 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2447 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2448 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2449 2450 /* Dummy at the end without handler. */ 2451 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2452 }; 2453 2454 static int 2455 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2456 { 2457 struct ieee80211com *ic; 2458 struct lkpi_hw *lhw; 2459 struct lkpi_vif *lvif; 2460 struct ieee80211_vif *vif; 2461 struct fsm_state *s; 2462 enum ieee80211_state ostate; 2463 int error; 2464 2465 ic = vap->iv_ic; 2466 IEEE80211_LOCK_ASSERT(ic); 2467 ostate = vap->iv_state; 2468 2469 #ifdef LINUXKPI_DEBUG_80211 2470 if (linuxkpi_debug_80211 & D80211_TRACE) 2471 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2472 __func__, __LINE__, vap, nstate, arg); 2473 #endif 2474 2475 if (vap->iv_opmode == IEEE80211_M_STA) { 2476 2477 lhw = ic->ic_softc; 2478 lvif = VAP_TO_LVIF(vap); 2479 vif = LVIF_TO_VIF(lvif); 2480 2481 /* No need to replicate this in most state handlers. */ 2482 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2483 lkpi_stop_hw_scan(lhw, vif); 2484 2485 s = sta_state_fsm; 2486 2487 } else { 2488 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2489 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2490 return (ENOSYS); 2491 } 2492 2493 error = 0; 2494 for (; s->handler != NULL; s++) { 2495 if (ostate == s->ostate && nstate == s->nstate) { 2496 #ifdef LINUXKPI_DEBUG_80211 2497 if (linuxkpi_debug_80211 & D80211_TRACE) 2498 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2499 " %d (%s): arg %d.\n", __func__, 2500 ostate, ieee80211_state_name[ostate], 2501 nstate, ieee80211_state_name[nstate], arg); 2502 #endif 2503 error = s->handler(vap, nstate, arg); 2504 break; 2505 } 2506 } 2507 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2508 2509 if (s->handler == NULL) { 2510 IMPROVE("turn this into a KASSERT\n"); 2511 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2512 "%d (%s) -> %d (%s)\n", __func__, 2513 ostate, ieee80211_state_name[ostate], 2514 nstate, ieee80211_state_name[nstate]); 2515 return (ENOSYS); 2516 } 2517 2518 if (error == EALREADY) { 2519 #ifdef LINUXKPI_DEBUG_80211 2520 if (linuxkpi_debug_80211 & D80211_TRACE) 2521 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2522 "%d (%s): iv_newstate already handled: %d.\n", 2523 __func__, ostate, ieee80211_state_name[ostate], 2524 nstate, ieee80211_state_name[nstate], error); 2525 #endif 2526 return (0); 2527 } 2528 2529 if (error != 0) { 2530 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2531 "%d (%s) -> %d (%s)\n", __func__, error, 2532 ostate, ieee80211_state_name[ostate], 2533 nstate, ieee80211_state_name[nstate]); 2534 return (error); 2535 } 2536 2537 #ifdef LINUXKPI_DEBUG_80211 2538 if (linuxkpi_debug_80211 & D80211_TRACE) 2539 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2540 "calling net80211 parent\n", 2541 __func__, __LINE__, vap, nstate, arg); 2542 #endif 2543 2544 return (lvif->iv_newstate(vap, nstate, arg)); 2545 } 2546 2547 /* -------------------------------------------------------------------------- */ 2548 2549 /* 2550 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2551 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2552 * new node without us knowing and thus our ni/lsta are out of sync. 2553 */ 2554 static struct ieee80211_node * 2555 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2556 { 2557 struct lkpi_vif *lvif; 2558 struct ieee80211_node *rni; 2559 2560 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2561 2562 lvif = VAP_TO_LVIF(vap); 2563 2564 LKPI_80211_LVIF_LOCK(lvif); 2565 lvif->lvif_bss_synched = false; 2566 LKPI_80211_LVIF_UNLOCK(lvif); 2567 2568 rni = lvif->iv_update_bss(vap, ni); 2569 return (rni); 2570 } 2571 2572 #ifdef LKPI_80211_WME 2573 static int 2574 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2575 { 2576 struct ieee80211com *ic; 2577 struct ieee80211_hw *hw; 2578 struct lkpi_vif *lvif; 2579 struct ieee80211_vif *vif; 2580 struct chanAccParams chp; 2581 struct wmeParams wmeparr[WME_NUM_AC]; 2582 struct ieee80211_tx_queue_params txqp; 2583 enum ieee80211_bss_changed changed; 2584 int error; 2585 uint16_t ac; 2586 2587 IMPROVE(); 2588 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2589 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2590 2591 if (vap == NULL) 2592 return (0); 2593 2594 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2595 return (0); 2596 2597 if (lhw->ops->conf_tx == NULL) 2598 return (0); 2599 2600 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2601 lhw->update_wme = true; 2602 return (0); 2603 } 2604 lhw->update_wme = false; 2605 2606 ic = lhw->ic; 2607 ieee80211_wme_ic_getparams(ic, &chp); 2608 IEEE80211_LOCK(ic); 2609 for (ac = 0; ac < WME_NUM_AC; ac++) 2610 wmeparr[ac] = chp.cap_wmeParams[ac]; 2611 IEEE80211_UNLOCK(ic); 2612 2613 hw = LHW_TO_HW(lhw); 2614 lvif = VAP_TO_LVIF(vap); 2615 vif = LVIF_TO_VIF(lvif); 2616 2617 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2618 LKPI_80211_LHW_LOCK(lhw); 2619 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2620 struct wmeParams *wmep; 2621 2622 wmep = &wmeparr[ac]; 2623 bzero(&txqp, sizeof(txqp)); 2624 txqp.cw_min = wmep->wmep_logcwmin; 2625 txqp.cw_max = wmep->wmep_logcwmax; 2626 txqp.txop = wmep->wmep_txopLimit; 2627 txqp.aifs = wmep->wmep_aifsn; 2628 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2629 if (error != 0) 2630 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2631 __func__, ac, error); 2632 } 2633 LKPI_80211_LHW_UNLOCK(lhw); 2634 changed = BSS_CHANGED_QOS; 2635 if (!planned) 2636 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2637 2638 return (changed); 2639 } 2640 #endif 2641 2642 static int 2643 lkpi_ic_wme_update(struct ieee80211com *ic) 2644 { 2645 #ifdef LKPI_80211_WME 2646 struct ieee80211vap *vap; 2647 struct lkpi_hw *lhw; 2648 2649 IMPROVE("Use the per-VAP callback in net80211."); 2650 vap = TAILQ_FIRST(&ic->ic_vaps); 2651 if (vap == NULL) 2652 return (0); 2653 2654 lhw = ic->ic_softc; 2655 2656 lkpi_wme_update(lhw, vap, false); 2657 #endif 2658 return (0); /* unused */ 2659 } 2660 2661 static struct ieee80211vap * 2662 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2663 int unit, enum ieee80211_opmode opmode, int flags, 2664 const uint8_t bssid[IEEE80211_ADDR_LEN], 2665 const uint8_t mac[IEEE80211_ADDR_LEN]) 2666 { 2667 struct lkpi_hw *lhw; 2668 struct ieee80211_hw *hw; 2669 struct lkpi_vif *lvif; 2670 struct ieee80211vap *vap; 2671 struct ieee80211_vif *vif; 2672 struct ieee80211_tx_queue_params txqp; 2673 enum ieee80211_bss_changed changed; 2674 size_t len; 2675 int error, i; 2676 uint16_t ac; 2677 2678 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2679 return (NULL); 2680 2681 lhw = ic->ic_softc; 2682 hw = LHW_TO_HW(lhw); 2683 2684 len = sizeof(*lvif); 2685 len += hw->vif_data_size; /* vif->drv_priv */ 2686 2687 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2688 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2689 TAILQ_INIT(&lvif->lsta_head); 2690 lvif->lvif_bss = NULL; 2691 lvif->lvif_bss_synched = false; 2692 vap = LVIF_TO_VAP(lvif); 2693 2694 vif = LVIF_TO_VIF(lvif); 2695 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2696 vif->p2p = false; 2697 vif->probe_req_reg = false; 2698 vif->type = lkpi_opmode_to_vif_type(opmode); 2699 lvif->wdev.iftype = vif->type; 2700 /* Need to fill in other fields as well. */ 2701 IMPROVE(); 2702 2703 /* XXX-BZ hardcoded for now! */ 2704 #if 1 2705 vif->chanctx_conf = NULL; 2706 vif->bss_conf.vif = vif; 2707 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2708 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2709 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2710 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2711 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2712 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2713 vif->bss_conf.qos = false; 2714 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2715 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2716 vif->cfg.aid = 0; 2717 vif->cfg.assoc = false; 2718 vif->cfg.idle = true; 2719 vif->cfg.ps = false; 2720 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2721 /* 2722 * We need to initialize it to something as the bss_info_changed call 2723 * will try to copy from it in iwlwifi and NULL is a panic. 2724 * We will set the proper one in scan_to_auth() before being assoc. 2725 */ 2726 vif->bss_conf.bssid = ieee80211broadcastaddr; 2727 #endif 2728 #if 0 2729 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2730 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2731 vif->bss_conf.beacon_int = ic->ic_bintval; 2732 /* iwlwifi bug. */ 2733 if (vif->bss_conf.beacon_int < 16) 2734 vif->bss_conf.beacon_int = 16; 2735 #endif 2736 2737 /* Link Config */ 2738 vif->link_conf[0] = &vif->bss_conf; 2739 for (i = 0; i < nitems(vif->link_conf); i++) { 2740 IMPROVE("more than 1 link one day"); 2741 } 2742 2743 /* Setup queue defaults; driver may override in (*add_interface). */ 2744 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2745 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2746 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2747 else if (hw->queues >= IEEE80211_NUM_ACS) 2748 vif->hw_queue[i] = i; 2749 else 2750 vif->hw_queue[i] = 0; 2751 2752 /* Initialize the queue to running. Stopped? */ 2753 lvif->hw_queue_stopped[i] = false; 2754 } 2755 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2756 2757 IMPROVE(); 2758 2759 error = lkpi_80211_mo_start(hw); 2760 if (error != 0) { 2761 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2762 mtx_destroy(&lvif->mtx); 2763 free(lvif, M_80211_VAP); 2764 return (NULL); 2765 } 2766 2767 error = lkpi_80211_mo_add_interface(hw, vif); 2768 if (error != 0) { 2769 IMPROVE(); /* XXX-BZ mo_stop()? */ 2770 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2771 mtx_destroy(&lvif->mtx); 2772 free(lvif, M_80211_VAP); 2773 return (NULL); 2774 } 2775 2776 LKPI_80211_LHW_LVIF_LOCK(lhw); 2777 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2778 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2779 2780 /* Set bss_info. */ 2781 changed = 0; 2782 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2783 2784 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2785 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2786 LKPI_80211_LHW_LOCK(lhw); 2787 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2788 2789 bzero(&txqp, sizeof(txqp)); 2790 txqp.cw_min = 15; 2791 txqp.cw_max = 1023; 2792 txqp.txop = 0; 2793 txqp.aifs = 2; 2794 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2795 if (error != 0) 2796 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2797 __func__, ac, error); 2798 } 2799 LKPI_80211_LHW_UNLOCK(lhw); 2800 changed = BSS_CHANGED_QOS; 2801 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2802 2803 /* Force MC init. */ 2804 lkpi_update_mcast_filter(ic, true); 2805 2806 IMPROVE(); 2807 2808 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2809 2810 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2811 lvif->iv_newstate = vap->iv_newstate; 2812 vap->iv_newstate = lkpi_iv_newstate; 2813 lvif->iv_update_bss = vap->iv_update_bss; 2814 vap->iv_update_bss = lkpi_iv_update_bss; 2815 2816 /* Key management. */ 2817 if (lhw->ops->set_key != NULL) { 2818 #ifdef LKPI_80211_HW_CRYPTO 2819 vap->iv_key_set = lkpi_iv_key_set; 2820 vap->iv_key_delete = lkpi_iv_key_delete; 2821 #endif 2822 } 2823 2824 #ifdef LKPI_80211_HT 2825 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 2826 #endif 2827 2828 ieee80211_ratectl_init(vap); 2829 2830 /* Complete setup. */ 2831 ieee80211_vap_attach(vap, ieee80211_media_change, 2832 ieee80211_media_status, mac); 2833 2834 if (hw->max_listen_interval == 0) 2835 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2836 hw->conf.listen_interval = hw->max_listen_interval; 2837 ic->ic_set_channel(ic); 2838 2839 /* XXX-BZ do we need to be able to update these? */ 2840 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2841 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2842 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2843 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2844 /* any others? */ 2845 IMPROVE(); 2846 2847 return (vap); 2848 } 2849 2850 void 2851 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2852 { 2853 2854 wiphy_unregister(hw->wiphy); 2855 linuxkpi_ieee80211_ifdetach(hw); 2856 2857 IMPROVE(); 2858 } 2859 2860 void 2861 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2862 { 2863 2864 TODO(); 2865 } 2866 2867 static void 2868 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2869 { 2870 struct ieee80211com *ic; 2871 struct lkpi_hw *lhw; 2872 struct ieee80211_hw *hw; 2873 struct lkpi_vif *lvif; 2874 struct ieee80211_vif *vif; 2875 2876 lvif = VAP_TO_LVIF(vap); 2877 vif = LVIF_TO_VIF(lvif); 2878 ic = vap->iv_ic; 2879 lhw = ic->ic_softc; 2880 hw = LHW_TO_HW(lhw); 2881 2882 LKPI_80211_LHW_LVIF_LOCK(lhw); 2883 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2884 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2885 2886 ieee80211_ratectl_deinit(vap); 2887 ieee80211_vap_detach(vap); 2888 2889 IMPROVE("clear up other bits in this state"); 2890 2891 lkpi_80211_mo_remove_interface(hw, vif); 2892 2893 /* Single VAP, so we can do this here. */ 2894 lkpi_80211_mo_stop(hw); 2895 2896 mtx_destroy(&lvif->mtx); 2897 free(lvif, M_80211_VAP); 2898 } 2899 2900 static void 2901 lkpi_ic_update_mcast(struct ieee80211com *ic) 2902 { 2903 2904 lkpi_update_mcast_filter(ic, false); 2905 TRACEOK(); 2906 } 2907 2908 static void 2909 lkpi_ic_update_promisc(struct ieee80211com *ic) 2910 { 2911 2912 UNIMPLEMENTED; 2913 } 2914 2915 static void 2916 lkpi_ic_update_chw(struct ieee80211com *ic) 2917 { 2918 2919 UNIMPLEMENTED; 2920 } 2921 2922 /* Start / stop device. */ 2923 static void 2924 lkpi_ic_parent(struct ieee80211com *ic) 2925 { 2926 struct lkpi_hw *lhw; 2927 #ifdef HW_START_STOP 2928 struct ieee80211_hw *hw; 2929 int error; 2930 #endif 2931 bool start_all; 2932 2933 IMPROVE(); 2934 2935 lhw = ic->ic_softc; 2936 #ifdef HW_START_STOP 2937 hw = LHW_TO_HW(lhw); 2938 #endif 2939 start_all = false; 2940 2941 /* IEEE80211_UNLOCK(ic); */ 2942 LKPI_80211_LHW_LOCK(lhw); 2943 if (ic->ic_nrunning > 0) { 2944 #ifdef HW_START_STOP 2945 error = lkpi_80211_mo_start(hw); 2946 if (error == 0) 2947 #endif 2948 start_all = true; 2949 } else { 2950 #ifdef HW_START_STOP 2951 lkpi_80211_mo_stop(hw); 2952 #endif 2953 } 2954 LKPI_80211_LHW_UNLOCK(lhw); 2955 /* IEEE80211_LOCK(ic); */ 2956 2957 if (start_all) 2958 ieee80211_start_all(ic); 2959 } 2960 2961 bool 2962 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2963 size_t ie_ids_len) 2964 { 2965 int i; 2966 2967 for (i = 0; i < ie_ids_len; i++) { 2968 if (ie == *ie_ids) 2969 return (true); 2970 } 2971 2972 return (false); 2973 } 2974 2975 /* Return true if skipped; false if error. */ 2976 bool 2977 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2978 { 2979 size_t x; 2980 uint8_t l; 2981 2982 x = *xp; 2983 2984 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2985 __func__, x, ies_len, ies)); 2986 l = ies[x + 1]; 2987 x += 2 + l; 2988 2989 if (x > ies_len) 2990 return (false); 2991 2992 *xp = x; 2993 return (true); 2994 } 2995 2996 static uint8_t * 2997 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2998 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2999 { 3000 struct ieee80211_supported_band *supband; 3001 struct linuxkpi_ieee80211_channel *channels; 3002 struct ieee80211com *ic; 3003 const struct ieee80211_channel *chan; 3004 const struct ieee80211_rateset *rs; 3005 uint8_t *pb; 3006 int band, i; 3007 3008 ic = vap->iv_ic; 3009 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3010 if ((band_mask & (1 << band)) == 0) 3011 continue; 3012 3013 supband = hw->wiphy->bands[band]; 3014 /* 3015 * This should not happen; 3016 * band_mask is a bitmask of valid bands to scan on. 3017 */ 3018 if (supband == NULL || supband->n_channels == 0) 3019 continue; 3020 3021 /* Find a first channel to get the mode and rates from. */ 3022 channels = supband->channels; 3023 chan = NULL; 3024 for (i = 0; i < supband->n_channels; i++) { 3025 3026 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3027 continue; 3028 3029 chan = ieee80211_find_channel(ic, 3030 channels[i].center_freq, 0); 3031 if (chan != NULL) 3032 break; 3033 } 3034 3035 /* This really should not happen. */ 3036 if (chan == NULL) 3037 continue; 3038 3039 pb = p; 3040 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 3041 p = ieee80211_add_rates(p, rs); 3042 p = ieee80211_add_xrates(p, rs); 3043 3044 #if defined(LKPI_80211_HT) 3045 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 3046 struct ieee80211_channel *c; 3047 3048 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3049 vap->iv_flags_ht); 3050 p = ieee80211_add_htcap_ch(p, vap, c); 3051 } 3052 #endif 3053 #if defined(LKPI_80211_VHT) 3054 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 3055 struct ieee80211_channel *c; 3056 3057 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 3058 vap->iv_flags_ht); 3059 c = ieee80211_vht_adjust_channel(ic, c, 3060 vap->iv_vht_flags); 3061 p = ieee80211_add_vhtcap_ch(p, vap, c); 3062 } 3063 #endif 3064 3065 scan_ies->ies[band] = pb; 3066 scan_ies->len[band] = p - pb; 3067 } 3068 3069 /* Add common_ies */ 3070 pb = p; 3071 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3072 vap->iv_wpa_ie != NULL) { 3073 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 3074 p += 2 + vap->iv_wpa_ie[1]; 3075 } 3076 if (vap->iv_appie_probereq != NULL) { 3077 memcpy(p, vap->iv_appie_probereq->ie_data, 3078 vap->iv_appie_probereq->ie_len); 3079 p += vap->iv_appie_probereq->ie_len; 3080 } 3081 scan_ies->common_ies = pb; 3082 scan_ies->common_ie_len = p - pb; 3083 3084 return (p); 3085 } 3086 3087 static void 3088 lkpi_ic_scan_start(struct ieee80211com *ic) 3089 { 3090 struct lkpi_hw *lhw; 3091 struct ieee80211_hw *hw; 3092 struct lkpi_vif *lvif; 3093 struct ieee80211_vif *vif; 3094 struct ieee80211_scan_state *ss; 3095 struct ieee80211vap *vap; 3096 int error; 3097 bool is_hw_scan; 3098 3099 lhw = ic->ic_softc; 3100 LKPI_80211_LHW_SCAN_LOCK(lhw); 3101 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3102 /* A scan is still running. */ 3103 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3104 return; 3105 } 3106 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3107 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3108 3109 ss = ic->ic_scan; 3110 vap = ss->ss_vap; 3111 if (vap->iv_state != IEEE80211_S_SCAN) { 3112 IMPROVE("We need to be able to scan if not in S_SCAN"); 3113 return; 3114 } 3115 3116 hw = LHW_TO_HW(lhw); 3117 if (!is_hw_scan) { 3118 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 3119 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3120 sw_scan: 3121 lvif = VAP_TO_LVIF(vap); 3122 vif = LVIF_TO_VIF(lvif); 3123 3124 if (vap->iv_state == IEEE80211_S_SCAN) 3125 lkpi_hw_conf_idle(hw, false); 3126 3127 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 3128 /* net80211::scan_start() handled PS for us. */ 3129 IMPROVE(); 3130 /* XXX Also means it is too late to flush queues? 3131 * need to check iv_sta_ps or overload? */ 3132 /* XXX want to adjust ss end time/ maxdwell? */ 3133 3134 } else { 3135 struct ieee80211_channel *c; 3136 struct ieee80211_scan_request *hw_req; 3137 struct linuxkpi_ieee80211_channel *lc, **cpp; 3138 struct cfg80211_ssid *ssids; 3139 struct cfg80211_scan_6ghz_params *s6gp; 3140 size_t chan_len, nchan, ssids_len, s6ghzlen; 3141 int band, i, ssid_count, common_ie_len; 3142 uint32_t band_mask; 3143 uint8_t *ie, *ieend; 3144 bool running; 3145 3146 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 3147 ssids_len = ssid_count * sizeof(*ssids); 3148 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 3149 3150 band_mask = 0; 3151 nchan = 0; 3152 for (i = ss->ss_next; i < ss->ss_last; i++) { 3153 nchan++; 3154 band = lkpi_net80211_chan_to_nl80211_band( 3155 ss->ss_chans[ss->ss_next + i]); 3156 band_mask |= (1 << band); 3157 } 3158 3159 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 3160 IMPROVE("individual band scans not yet supported, only scanning first band"); 3161 /* In theory net80211 should drive this. */ 3162 /* Probably we need to add local logic for now; 3163 * need to deal with scan_complete 3164 * and cancel_scan and keep local state. 3165 * Also cut the nchan down above. 3166 */ 3167 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 3168 } 3169 3170 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 3171 3172 common_ie_len = 0; 3173 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 3174 vap->iv_wpa_ie != NULL) 3175 common_ie_len += vap->iv_wpa_ie[1]; 3176 if (vap->iv_appie_probereq != NULL) 3177 common_ie_len += vap->iv_appie_probereq->ie_len; 3178 3179 /* We would love to check this at an earlier stage... */ 3180 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 3181 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 3182 "wiphy->max_scan_ie_len %d\n", __func__, 3183 common_ie_len, hw->wiphy->max_scan_ie_len); 3184 } 3185 3186 hw_req = malloc(sizeof(*hw_req) + ssids_len + 3187 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 3188 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 3189 3190 hw_req->req.flags = 0; /* XXX ??? */ 3191 /* hw_req->req.wdev */ 3192 hw_req->req.wiphy = hw->wiphy; 3193 hw_req->req.no_cck = false; /* XXX */ 3194 #if 0 3195 /* This seems to pessimise default scanning behaviour. */ 3196 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 3197 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 3198 #endif 3199 #ifdef __notyet__ 3200 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 3201 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 3202 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 3203 #endif 3204 eth_broadcast_addr(hw_req->req.bssid); 3205 3206 hw_req->req.n_channels = nchan; 3207 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 3208 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 3209 for (i = 0; i < nchan; i++) { 3210 *(cpp + i) = 3211 (struct linuxkpi_ieee80211_channel *)(lc + i); 3212 } 3213 for (i = 0; i < nchan; i++) { 3214 c = ss->ss_chans[ss->ss_next + i]; 3215 3216 lc->hw_value = c->ic_ieee; 3217 lc->center_freq = c->ic_freq; /* XXX */ 3218 /* lc->flags */ 3219 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 3220 lc->max_power = c->ic_maxpower; 3221 /* lc-> ... */ 3222 lc++; 3223 } 3224 3225 hw_req->req.n_ssids = ssid_count; 3226 if (hw_req->req.n_ssids > 0) { 3227 ssids = (struct cfg80211_ssid *)lc; 3228 hw_req->req.ssids = ssids; 3229 for (i = 0; i < ssid_count; i++) { 3230 ssids->ssid_len = ss->ss_ssid[i].len; 3231 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 3232 ss->ss_ssid[i].len); 3233 ssids++; 3234 } 3235 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 3236 } else { 3237 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 3238 } 3239 3240 /* 6GHz one day. */ 3241 hw_req->req.n_6ghz_params = 0; 3242 hw_req->req.scan_6ghz_params = NULL; 3243 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 3244 /* s6gp->... */ 3245 3246 ie = ieend = (uint8_t *)s6gp; 3247 /* Copy per-band IEs, copy common IEs */ 3248 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 3249 hw_req->req.ie = ie; 3250 hw_req->req.ie_len = ieend - ie; 3251 3252 lvif = VAP_TO_LVIF(vap); 3253 vif = LVIF_TO_VIF(lvif); 3254 3255 LKPI_80211_LHW_SCAN_LOCK(lhw); 3256 /* Re-check under lock. */ 3257 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 3258 if (!running) { 3259 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 3260 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 3261 3262 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 3263 lhw->hw_req = hw_req; 3264 } 3265 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3266 if (running) { 3267 free(hw_req, M_LKPI80211); 3268 return; 3269 } 3270 3271 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 3272 if (error != 0) { 3273 ieee80211_cancel_scan(vap); 3274 3275 /* 3276 * ieee80211_scan_completed must be called in either 3277 * case of error or none. So let the free happen there 3278 * and only there. 3279 * That would be fine in theory but in practice drivers 3280 * behave differently: 3281 * ath10k does not return hw_scan until after scan_complete 3282 * and can then still return an error. 3283 * rtw88 can return 1 or -EBUSY without scan_complete 3284 * iwlwifi can return various errors before scan starts 3285 * ... 3286 * So we cannot rely on that behaviour and have to check 3287 * and balance between both code paths. 3288 */ 3289 LKPI_80211_LHW_SCAN_LOCK(lhw); 3290 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3291 free(lhw->hw_req, M_LKPI80211); 3292 lhw->hw_req = NULL; 3293 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3294 } 3295 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3296 3297 /* 3298 * XXX-SIGH magic number. 3299 * rtw88 has a magic "return 1" if offloading scan is 3300 * not possible. Fall back to sw scan in that case. 3301 */ 3302 if (error == 1) { 3303 LKPI_80211_LHW_SCAN_LOCK(lhw); 3304 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 3305 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3306 /* 3307 * XXX If we clear this now and later a driver 3308 * thinks it * can do a hw_scan again, we will 3309 * currently not re-enable it? 3310 */ 3311 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3312 ieee80211_start_scan(vap, 3313 IEEE80211_SCAN_ACTIVE | 3314 IEEE80211_SCAN_NOPICK | 3315 IEEE80211_SCAN_ONCE, 3316 IEEE80211_SCAN_FOREVER, 3317 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 3318 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 3319 vap->iv_des_nssid, vap->iv_des_ssid); 3320 goto sw_scan; 3321 } 3322 3323 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 3324 __func__, error); 3325 } 3326 } 3327 } 3328 3329 static void 3330 lkpi_ic_scan_end(struct ieee80211com *ic) 3331 { 3332 struct lkpi_hw *lhw; 3333 bool is_hw_scan; 3334 3335 lhw = ic->ic_softc; 3336 LKPI_80211_LHW_SCAN_LOCK(lhw); 3337 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 3338 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3339 return; 3340 } 3341 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3342 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3343 3344 if (!is_hw_scan) { 3345 struct ieee80211_scan_state *ss; 3346 struct ieee80211vap *vap; 3347 struct ieee80211_hw *hw; 3348 struct lkpi_vif *lvif; 3349 struct ieee80211_vif *vif; 3350 3351 ss = ic->ic_scan; 3352 vap = ss->ss_vap; 3353 hw = LHW_TO_HW(lhw); 3354 lvif = VAP_TO_LVIF(vap); 3355 vif = LVIF_TO_VIF(lvif); 3356 3357 lkpi_80211_mo_sw_scan_complete(hw, vif); 3358 3359 /* Send PS to stop buffering if n80211 does not for us? */ 3360 3361 if (vap->iv_state == IEEE80211_S_SCAN) 3362 lkpi_hw_conf_idle(hw, true); 3363 } 3364 } 3365 3366 static void 3367 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 3368 unsigned long maxdwell) 3369 { 3370 struct lkpi_hw *lhw; 3371 bool is_hw_scan; 3372 3373 lhw = ss->ss_ic->ic_softc; 3374 LKPI_80211_LHW_SCAN_LOCK(lhw); 3375 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3376 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3377 if (!is_hw_scan) 3378 lhw->ic_scan_curchan(ss, maxdwell); 3379 } 3380 3381 static void 3382 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 3383 { 3384 struct lkpi_hw *lhw; 3385 bool is_hw_scan; 3386 3387 lhw = ss->ss_ic->ic_softc; 3388 LKPI_80211_LHW_SCAN_LOCK(lhw); 3389 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3390 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3391 if (!is_hw_scan) 3392 lhw->ic_scan_mindwell(ss); 3393 } 3394 3395 static void 3396 lkpi_ic_set_channel(struct ieee80211com *ic) 3397 { 3398 struct lkpi_hw *lhw; 3399 struct ieee80211_hw *hw; 3400 struct ieee80211_channel *c; 3401 struct linuxkpi_ieee80211_channel *chan; 3402 int error; 3403 bool hw_scan_running; 3404 3405 lhw = ic->ic_softc; 3406 3407 /* If we do not support (*config)() save us the work. */ 3408 if (lhw->ops->config == NULL) 3409 return; 3410 3411 /* If we have a hw_scan running do not switch channels. */ 3412 LKPI_80211_LHW_SCAN_LOCK(lhw); 3413 hw_scan_running = 3414 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3415 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3416 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3417 if (hw_scan_running) 3418 return; 3419 3420 c = ic->ic_curchan; 3421 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3422 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3423 c, lhw->ops->config); 3424 return; 3425 } 3426 3427 chan = lkpi_find_lkpi80211_chan(lhw, c); 3428 if (chan == NULL) { 3429 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3430 c, chan); 3431 return; 3432 } 3433 3434 /* XXX max power for scanning? */ 3435 IMPROVE(); 3436 3437 hw = LHW_TO_HW(lhw); 3438 cfg80211_chandef_create(&hw->conf.chandef, chan, 3439 #ifdef LKPI_80211_HT 3440 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 3441 #endif 3442 NL80211_CHAN_NO_HT); 3443 3444 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3445 if (error != 0 && error != EOPNOTSUPP) { 3446 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3447 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3448 /* XXX should we unroll to the previous chandef? */ 3449 IMPROVE(); 3450 } else { 3451 /* Update radiotap channels as well. */ 3452 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3453 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3454 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3455 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3456 } 3457 3458 /* Currently PS is hard coded off! Not sure it belongs here. */ 3459 IMPROVE(); 3460 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3461 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3462 hw->conf.flags &= ~IEEE80211_CONF_PS; 3463 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3464 if (error != 0 && error != EOPNOTSUPP) 3465 ic_printf(ic, "ERROR: %s: config %#0x returned " 3466 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3467 error); 3468 } 3469 } 3470 3471 static struct ieee80211_node * 3472 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3473 const uint8_t mac[IEEE80211_ADDR_LEN]) 3474 { 3475 struct ieee80211com *ic; 3476 struct lkpi_hw *lhw; 3477 struct ieee80211_node *ni; 3478 struct ieee80211_hw *hw; 3479 struct lkpi_sta *lsta; 3480 3481 ic = vap->iv_ic; 3482 lhw = ic->ic_softc; 3483 3484 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3485 if (lhw->ic_node_alloc == NULL) 3486 return (NULL); 3487 3488 ni = lhw->ic_node_alloc(vap, mac); 3489 if (ni == NULL) 3490 return (NULL); 3491 3492 hw = LHW_TO_HW(lhw); 3493 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3494 if (lsta == NULL) { 3495 if (lhw->ic_node_free != NULL) 3496 lhw->ic_node_free(ni); 3497 return (NULL); 3498 } 3499 3500 return (ni); 3501 } 3502 3503 static int 3504 lkpi_ic_node_init(struct ieee80211_node *ni) 3505 { 3506 struct ieee80211com *ic; 3507 struct lkpi_hw *lhw; 3508 int error; 3509 3510 ic = ni->ni_ic; 3511 lhw = ic->ic_softc; 3512 3513 if (lhw->ic_node_init != NULL) { 3514 error = lhw->ic_node_init(ni); 3515 if (error != 0) 3516 return (error); 3517 } 3518 3519 /* XXX-BZ Sync other state over. */ 3520 IMPROVE(); 3521 3522 return (0); 3523 } 3524 3525 static void 3526 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3527 { 3528 struct ieee80211com *ic; 3529 struct lkpi_hw *lhw; 3530 3531 ic = ni->ni_ic; 3532 lhw = ic->ic_softc; 3533 3534 /* XXX-BZ remove from driver, ... */ 3535 IMPROVE(); 3536 3537 if (lhw->ic_node_cleanup != NULL) 3538 lhw->ic_node_cleanup(ni); 3539 } 3540 3541 static void 3542 lkpi_ic_node_free(struct ieee80211_node *ni) 3543 { 3544 struct ieee80211com *ic; 3545 struct lkpi_hw *lhw; 3546 struct lkpi_sta *lsta; 3547 3548 ic = ni->ni_ic; 3549 lhw = ic->ic_softc; 3550 lsta = ni->ni_drv_data; 3551 3552 /* KASSERT lsta is not NULL here. Print ni/ni__refcnt. */ 3553 3554 /* 3555 * Pass in the original ni just in case of error we could check that 3556 * it is the same as lsta->ni. 3557 */ 3558 lkpi_lsta_free(lsta, ni); 3559 3560 if (lhw->ic_node_free != NULL) 3561 lhw->ic_node_free(ni); 3562 } 3563 3564 static int 3565 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3566 const struct ieee80211_bpf_params *params __unused) 3567 { 3568 struct lkpi_sta *lsta; 3569 3570 lsta = ni->ni_drv_data; 3571 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3572 if (!lsta->txq_ready) { 3573 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3574 /* 3575 * Free the mbuf (do NOT release ni ref for the m_pkthdr.rcvif! 3576 * ieee80211_raw_output() does that in case of error). 3577 */ 3578 m_free(m); 3579 return (ENETDOWN); 3580 } 3581 3582 /* Queue the packet and enqueue the task to handle it. */ 3583 mbufq_enqueue(&lsta->txq, m); 3584 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3585 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3586 3587 #ifdef LINUXKPI_DEBUG_80211 3588 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3589 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3590 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3591 mbufq_len(&lsta->txq)); 3592 #endif 3593 3594 return (0); 3595 } 3596 3597 static void 3598 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3599 { 3600 struct ieee80211_node *ni; 3601 #ifndef LKPI_80211_HW_CRYPTO 3602 struct ieee80211_frame *wh; 3603 #endif 3604 struct ieee80211_key *k; 3605 struct sk_buff *skb; 3606 struct ieee80211com *ic; 3607 struct lkpi_hw *lhw; 3608 struct ieee80211_hw *hw; 3609 struct lkpi_vif *lvif; 3610 struct ieee80211_vif *vif; 3611 struct ieee80211_channel *c; 3612 struct ieee80211_tx_control control; 3613 struct ieee80211_tx_info *info; 3614 struct ieee80211_sta *sta; 3615 struct ieee80211_hdr *hdr; 3616 struct lkpi_txq *ltxq; 3617 void *buf; 3618 uint8_t ac, tid; 3619 3620 M_ASSERTPKTHDR(m); 3621 #ifdef LINUXKPI_DEBUG_80211 3622 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3623 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3624 #endif 3625 3626 ni = lsta->ni; 3627 k = NULL; 3628 #ifndef LKPI_80211_HW_CRYPTO 3629 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3630 wh = mtod(m, struct ieee80211_frame *); 3631 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3632 /* Retrieve key for TX && do software encryption. */ 3633 k = ieee80211_crypto_encap(ni, m); 3634 if (k == NULL) { 3635 ieee80211_free_node(ni); 3636 m_freem(m); 3637 return; 3638 } 3639 } 3640 #endif 3641 3642 ic = ni->ni_ic; 3643 lhw = ic->ic_softc; 3644 hw = LHW_TO_HW(lhw); 3645 c = ni->ni_chan; 3646 3647 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3648 struct lkpi_radiotap_tx_hdr *rtap; 3649 3650 rtap = &lhw->rtap_tx; 3651 rtap->wt_flags = 0; 3652 if (k != NULL) 3653 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3654 if (m->m_flags & M_FRAG) 3655 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3656 IMPROVE(); 3657 rtap->wt_rate = 0; 3658 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3659 rtap->wt_chan_freq = htole16(c->ic_freq); 3660 rtap->wt_chan_flags = htole16(c->ic_flags); 3661 } 3662 3663 ieee80211_radiotap_tx(ni->ni_vap, m); 3664 } 3665 3666 /* 3667 * net80211 should handle hw->extra_tx_headroom. 3668 * Though for as long as we are copying we don't mind. 3669 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3670 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3671 */ 3672 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3673 if (skb == NULL) { 3674 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3675 ieee80211_free_node(ni); 3676 m_freem(m); 3677 return; 3678 } 3679 skb_reserve(skb, hw->extra_tx_headroom); 3680 3681 /* XXX-BZ we need a SKB version understanding mbuf. */ 3682 /* Save the mbuf for ieee80211_tx_complete(). */ 3683 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3684 skb->m = m; 3685 #if 0 3686 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3687 #else 3688 buf = skb_put(skb, m->m_pkthdr.len); 3689 m_copydata(m, 0, m->m_pkthdr.len, buf); 3690 #endif 3691 /* Save the ni. */ 3692 m->m_pkthdr.PH_loc.ptr = ni; 3693 3694 lvif = VAP_TO_LVIF(ni->ni_vap); 3695 vif = LVIF_TO_VIF(lvif); 3696 3697 hdr = (void *)skb->data; 3698 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3699 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3700 if (!ieee80211_is_data(hdr->frame_control)) { 3701 /* MGMT and CTRL frames go on TID 7/VO. */ 3702 skb->priority = 7; 3703 ac = IEEE80211_AC_VO; 3704 } else { 3705 /* Other non-QOS traffic goes to BE. */ 3706 /* Contrary to net80211 we MUST NOT promote M_EAPOL. */ 3707 skb->priority = 0; 3708 ac = IEEE80211_AC_BE; 3709 } 3710 } else { 3711 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3712 ac = ieee80211e_up_to_ac[tid & 7]; 3713 } 3714 skb_set_queue_mapping(skb, ac); 3715 3716 info = IEEE80211_SKB_CB(skb); 3717 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3718 /* Slight delay; probably only happens on scanning so fine? */ 3719 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3720 c = ic->ic_curchan; 3721 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3722 info->hw_queue = vif->hw_queue[ac]; 3723 if (m->m_flags & M_EAPOL) 3724 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3725 info->control.vif = vif; 3726 /* XXX-BZ info->control.rates */ 3727 #ifdef __notyet__ 3728 #ifdef LKPI_80211_HT 3729 info->control.rts_cts_rate_idx= 3730 info->control.use_rts= /* RTS */ 3731 info->control.use_cts_prot= /* RTS/CTS*/ 3732 #endif 3733 #endif 3734 3735 sta = LSTA_TO_STA(lsta); 3736 #ifdef LKPI_80211_HW_CRYPTO 3737 info->control.hw_key = lsta->kc; 3738 #endif 3739 3740 IMPROVE(); 3741 3742 ltxq = NULL; 3743 if (!ieee80211_is_data_present(hdr->frame_control)) { 3744 if (vif->type == NL80211_IFTYPE_STATION && 3745 lsta->added_to_drv && 3746 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3747 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3748 } else if (lsta->added_to_drv && 3749 sta->txq[skb->priority] != NULL) { 3750 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3751 } 3752 if (ltxq == NULL) 3753 goto ops_tx; 3754 3755 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3756 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3757 3758 LKPI_80211_LTXQ_LOCK(ltxq); 3759 skb_queue_tail(<xq->skbq, skb); 3760 #ifdef LINUXKPI_DEBUG_80211 3761 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3762 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3763 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3764 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3765 __func__, __LINE__, 3766 curthread->td_tid, (unsigned int)ticks, 3767 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3768 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3769 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3770 #endif 3771 LKPI_80211_LTXQ_UNLOCK(ltxq); 3772 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3773 return; 3774 3775 ops_tx: 3776 #ifdef LINUXKPI_DEBUG_80211 3777 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3778 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3779 "TX ac %d prio %u qmap %u\n", 3780 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3781 skb, ac, skb->priority, skb->qmap); 3782 #endif 3783 memset(&control, 0, sizeof(control)); 3784 control.sta = sta; 3785 lkpi_80211_mo_tx(hw, &control, skb); 3786 } 3787 3788 static void 3789 lkpi_80211_txq_task(void *ctx, int pending) 3790 { 3791 struct lkpi_sta *lsta; 3792 struct mbufq mq; 3793 struct mbuf *m; 3794 3795 lsta = ctx; 3796 3797 #ifdef LINUXKPI_DEBUG_80211 3798 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3799 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3800 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3801 pending, mbufq_len(&lsta->txq)); 3802 #endif 3803 3804 mbufq_init(&mq, IFQ_MAXLEN); 3805 3806 LKPI_80211_LSTA_TXQ_LOCK(lsta); 3807 /* 3808 * Do not re-check lsta->txq_ready here; we may have a pending 3809 * disassoc frame still. 3810 */ 3811 mbufq_concat(&mq, &lsta->txq); 3812 LKPI_80211_LSTA_TXQ_UNLOCK(lsta); 3813 3814 m = mbufq_dequeue(&mq); 3815 while (m != NULL) { 3816 lkpi_80211_txq_tx_one(lsta, m); 3817 m = mbufq_dequeue(&mq); 3818 } 3819 } 3820 3821 static int 3822 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3823 { 3824 3825 /* XXX TODO */ 3826 IMPROVE(); 3827 3828 /* Quick and dirty cheating hack. */ 3829 struct ieee80211_node *ni; 3830 3831 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3832 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3833 } 3834 3835 #ifdef LKPI_80211_HT 3836 static int 3837 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3838 const uint8_t *frm, const uint8_t *efrm) 3839 { 3840 struct ieee80211com *ic; 3841 struct lkpi_hw *lhw; 3842 3843 ic = ni->ni_ic; 3844 lhw = ic->ic_softc; 3845 3846 IMPROVE_HT(); 3847 3848 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 3849 } 3850 3851 static int 3852 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 3853 { 3854 struct ieee80211com *ic; 3855 struct lkpi_hw *lhw; 3856 3857 ic = ni->ni_ic; 3858 lhw = ic->ic_softc; 3859 3860 IMPROVE_HT(); 3861 3862 return (lhw->ic_send_action(ni, category, action, sa)); 3863 } 3864 3865 3866 static int 3867 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3868 { 3869 struct ieee80211com *ic; 3870 struct lkpi_hw *lhw; 3871 3872 ic = ni->ni_ic; 3873 lhw = ic->ic_softc; 3874 3875 IMPROVE_HT(); 3876 3877 return (lhw->ic_ampdu_enable(ni, tap)); 3878 } 3879 3880 static int 3881 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3882 int dialogtoken, int baparamset, int batimeout) 3883 { 3884 struct ieee80211com *ic; 3885 struct lkpi_hw *lhw; 3886 3887 ic = ni->ni_ic; 3888 lhw = ic->ic_softc; 3889 3890 IMPROVE_HT(); 3891 3892 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 3893 } 3894 3895 static int 3896 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3897 int status, int baparamset, int batimeout) 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 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 3908 } 3909 3910 static void 3911 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3912 { 3913 struct ieee80211com *ic; 3914 struct lkpi_hw *lhw; 3915 3916 ic = ni->ni_ic; 3917 lhw = ic->ic_softc; 3918 3919 IMPROVE_HT(); 3920 3921 lhw->ic_addba_stop(ni, tap); 3922 } 3923 3924 static void 3925 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3926 { 3927 struct ieee80211com *ic; 3928 struct lkpi_hw *lhw; 3929 3930 ic = ni->ni_ic; 3931 lhw = ic->ic_softc; 3932 3933 IMPROVE_HT(); 3934 3935 lhw->ic_addba_response_timeout(ni, tap); 3936 } 3937 3938 static void 3939 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3940 int status) 3941 { 3942 struct ieee80211com *ic; 3943 struct lkpi_hw *lhw; 3944 3945 ic = ni->ni_ic; 3946 lhw = ic->ic_softc; 3947 3948 IMPROVE_HT(); 3949 3950 lhw->ic_bar_response(ni, tap, status); 3951 } 3952 3953 static int 3954 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 3955 int baparamset, int batimeout, int baseqctl) 3956 { 3957 struct ieee80211com *ic; 3958 struct lkpi_hw *lhw; 3959 struct ieee80211_hw *hw; 3960 struct ieee80211vap *vap; 3961 struct lkpi_vif *lvif; 3962 struct ieee80211_vif *vif; 3963 struct lkpi_sta *lsta; 3964 struct ieee80211_sta *sta; 3965 struct ieee80211_ampdu_params params; 3966 int error; 3967 3968 ic = ni->ni_ic; 3969 lhw = ic->ic_softc; 3970 hw = LHW_TO_HW(lhw); 3971 vap = ni->ni_vap; 3972 lvif = VAP_TO_LVIF(vap); 3973 vif = LVIF_TO_VIF(lvif); 3974 lsta = ni->ni_drv_data; 3975 sta = LSTA_TO_STA(lsta); 3976 3977 params.sta = sta; 3978 params.action = IEEE80211_AMPDU_RX_START; 3979 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 3980 if (params.buf_size == 0) 3981 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 3982 else 3983 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 3984 if (params.buf_size > hw->max_rx_aggregation_subframes) 3985 params.buf_size = hw->max_rx_aggregation_subframes; 3986 params.timeout = le16toh(batimeout); 3987 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 3988 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 3989 params.amsdu = false; 3990 3991 IMPROVE_HT("Do we need to distinguish based on SUPPORTS_REORDERING_BUFFER?"); 3992 3993 /* This may call kalloc. Make sure we can sleep. */ 3994 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 3995 if (error != 0) { 3996 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 3997 __func__, error, ni, rap); 3998 return (error); 3999 } 4000 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 4001 4002 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 4003 return (error); 4004 } 4005 4006 static void 4007 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 4008 { 4009 struct ieee80211com *ic; 4010 struct lkpi_hw *lhw; 4011 struct ieee80211_hw *hw; 4012 struct ieee80211vap *vap; 4013 struct lkpi_vif *lvif; 4014 struct ieee80211_vif *vif; 4015 struct lkpi_sta *lsta; 4016 struct ieee80211_sta *sta; 4017 struct ieee80211_ampdu_params params; 4018 int error; 4019 uint8_t tid; 4020 4021 ic = ni->ni_ic; 4022 lhw = ic->ic_softc; 4023 4024 /* 4025 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 4026 * we did not START. Some drivers pass it down to firmware which will 4027 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 4028 * ieee80211_ht_node_init() amongst others which will iterate over all 4029 * tid and call ic_ampdu_rx_stop() unconditionally. 4030 * XXX net80211 should probably be more "gentle" in these cases and 4031 * track some state itself. 4032 */ 4033 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 4034 goto net80211_only; 4035 4036 hw = LHW_TO_HW(lhw); 4037 vap = ni->ni_vap; 4038 lvif = VAP_TO_LVIF(vap); 4039 vif = LVIF_TO_VIF(lvif); 4040 lsta = ni->ni_drv_data; 4041 sta = LSTA_TO_STA(lsta); 4042 4043 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 4044 for (tid = 0; tid < WME_NUM_TID; tid++) { 4045 if (&ni->ni_rx_ampdu[tid] == rap) 4046 break; 4047 } 4048 4049 params.sta = sta; 4050 params.action = IEEE80211_AMPDU_RX_STOP; 4051 params.buf_size = 0; 4052 params.timeout = 0; 4053 params.ssn = 0; 4054 params.tid = tid; 4055 params.amsdu = false; 4056 4057 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 4058 if (error != 0) 4059 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 4060 __func__, error, ni, rap); 4061 4062 net80211_only: 4063 lhw->ic_ampdu_rx_stop(ni, rap); 4064 } 4065 #endif 4066 4067 static void 4068 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 4069 uint8_t *bands, int *chan_flags, enum nl80211_band band) 4070 { 4071 #ifdef LKPI_80211_HT 4072 struct ieee80211_sta_ht_cap *ht_cap; 4073 4074 ht_cap = &hw->wiphy->bands[band]->ht_cap; 4075 if (!ht_cap->ht_supported) 4076 return; 4077 4078 switch (band) { 4079 case NL80211_BAND_2GHZ: 4080 setbit(bands, IEEE80211_MODE_11NG); 4081 break; 4082 case NL80211_BAND_5GHZ: 4083 setbit(bands, IEEE80211_MODE_11NA); 4084 break; 4085 default: 4086 IMPROVE("Unsupported band %d", band); 4087 return; 4088 } 4089 4090 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 4091 4092 /* 4093 * Rather than manually checking each flag and 4094 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 4095 * simply copy the 16bits. 4096 */ 4097 ic->ic_htcaps |= ht_cap->cap; 4098 4099 /* Then deal with the other flags. */ 4100 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 4101 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 4102 #ifdef __notyet__ 4103 if (ieee80211_hw_check(hw, TX_AMSDU)) 4104 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 4105 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 4106 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 4107 IEEE80211_HTC_TX_AMSDU_AMPDU); 4108 #endif 4109 4110 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 4111 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_OFF; 4112 4113 /* Only add HT40 channels if supported. */ 4114 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 4115 chan_flags != NULL) 4116 *chan_flags |= NET80211_CBW_FLAG_HT40; 4117 #endif 4118 } 4119 4120 static void 4121 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 4122 int *n, struct ieee80211_channel *c) 4123 { 4124 struct lkpi_hw *lhw; 4125 struct ieee80211_hw *hw; 4126 struct linuxkpi_ieee80211_channel *channels; 4127 uint8_t bands[IEEE80211_MODE_BYTES]; 4128 int chan_flags, error, i, nchans; 4129 4130 /* Channels */ 4131 lhw = ic->ic_softc; 4132 hw = LHW_TO_HW(lhw); 4133 4134 /* NL80211_BAND_2GHZ */ 4135 nchans = 0; 4136 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 4137 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 4138 if (nchans > 0) { 4139 memset(bands, 0, sizeof(bands)); 4140 chan_flags = 0; 4141 setbit(bands, IEEE80211_MODE_11B); 4142 /* XXX-BZ unclear how to check for 11g. */ 4143 4144 IMPROVE("the bitrates may have flags?"); 4145 setbit(bands, IEEE80211_MODE_11G); 4146 4147 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4148 NL80211_BAND_2GHZ); 4149 4150 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 4151 for (i = 0; i < nchans && *n < maxchan; i++) { 4152 uint32_t nflags = 0; 4153 int cflags = chan_flags; 4154 4155 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4156 ic_printf(ic, "%s: Skipping disabled chan " 4157 "[%u/%u/%#x]\n", __func__, 4158 channels[i].hw_value, 4159 channels[i].center_freq, channels[i].flags); 4160 continue; 4161 } 4162 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4163 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4164 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4165 nflags |= IEEE80211_CHAN_DFS; 4166 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4167 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4168 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4169 cflags &= ~NET80211_CBW_FLAG_VHT80; 4170 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 4171 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4172 cflags &= ~NET80211_CBW_FLAG_HT40; 4173 4174 error = ieee80211_add_channel_cbw(c, maxchan, n, 4175 channels[i].hw_value, channels[i].center_freq, 4176 channels[i].max_power, 4177 nflags, bands, cflags); 4178 /* net80211::ENOBUFS: *n >= maxchans */ 4179 if (error != 0 && error != ENOBUFS) 4180 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4181 "returned error %d\n", 4182 __func__, channels[i].hw_value, 4183 channels[i].center_freq, channels[i].flags, 4184 nflags, chan_flags, cflags, error); 4185 if (error != 0) 4186 break; 4187 } 4188 } 4189 4190 /* NL80211_BAND_5GHZ */ 4191 nchans = 0; 4192 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 4193 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 4194 if (nchans > 0) { 4195 memset(bands, 0, sizeof(bands)); 4196 chan_flags = 0; 4197 setbit(bands, IEEE80211_MODE_11A); 4198 4199 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 4200 NL80211_BAND_5GHZ); 4201 4202 #ifdef LKPI_80211_VHT 4203 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 4204 4205 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 4206 ic->ic_vht_cap.vht_cap_info = 4207 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 4208 4209 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 4210 chan_flags |= NET80211_CBW_FLAG_VHT80; 4211 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 4212 ic->ic_vht_cap.vht_cap_info)) 4213 chan_flags |= NET80211_CBW_FLAG_VHT160; 4214 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 4215 ic->ic_vht_cap.vht_cap_info)) 4216 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 4217 } 4218 #endif 4219 4220 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 4221 for (i = 0; i < nchans && *n < maxchan; i++) { 4222 uint32_t nflags = 0; 4223 int cflags = chan_flags; 4224 4225 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4226 ic_printf(ic, "%s: Skipping disabled chan " 4227 "[%u/%u/%#x]\n", __func__, 4228 channels[i].hw_value, 4229 channels[i].center_freq, channels[i].flags); 4230 continue; 4231 } 4232 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4233 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4234 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4235 nflags |= IEEE80211_CHAN_DFS; 4236 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4237 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4238 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4239 cflags &= ~NET80211_CBW_FLAG_VHT80; 4240 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 4241 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4242 cflags &= ~NET80211_CBW_FLAG_HT40; 4243 4244 error = ieee80211_add_channel_cbw(c, maxchan, n, 4245 channels[i].hw_value, channels[i].center_freq, 4246 channels[i].max_power, 4247 nflags, bands, cflags); 4248 /* net80211::ENOBUFS: *n >= maxchans */ 4249 if (error != 0 && error != ENOBUFS) 4250 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4251 "returned error %d\n", 4252 __func__, channels[i].hw_value, 4253 channels[i].center_freq, channels[i].flags, 4254 nflags, chan_flags, cflags, error); 4255 if (error != 0) 4256 break; 4257 } 4258 } 4259 } 4260 4261 static void * 4262 lkpi_ieee80211_ifalloc(void) 4263 { 4264 struct ieee80211com *ic; 4265 4266 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 4267 if (ic == NULL) 4268 return (NULL); 4269 4270 /* Setting these happens later when we have device information. */ 4271 ic->ic_softc = NULL; 4272 ic->ic_name = "linuxkpi"; 4273 4274 return (ic); 4275 } 4276 4277 struct ieee80211_hw * 4278 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 4279 { 4280 struct ieee80211_hw *hw; 4281 struct lkpi_hw *lhw; 4282 struct wiphy *wiphy; 4283 int ac; 4284 4285 /* Get us and the driver data also allocated. */ 4286 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 4287 if (wiphy == NULL) 4288 return (NULL); 4289 4290 lhw = wiphy_priv(wiphy); 4291 lhw->ops = ops; 4292 4293 LKPI_80211_LHW_LOCK_INIT(lhw); 4294 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 4295 LKPI_80211_LHW_TXQ_LOCK_INIT(lhw); 4296 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 4297 TAILQ_INIT(&lhw->lvif_head); 4298 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4299 lhw->txq_generation[ac] = 1; 4300 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 4301 } 4302 4303 /* Deferred RX path. */ 4304 LKPI_80211_LHW_RXQ_LOCK_INIT(lhw); 4305 TASK_INIT(&lhw->rxq_task, 0, lkpi_80211_lhw_rxq_task, lhw); 4306 mbufq_init(&lhw->rxq, IFQ_MAXLEN); 4307 lhw->rxq_stopped = false; 4308 4309 /* 4310 * XXX-BZ TODO make sure there is a "_null" function to all ops 4311 * not initialized. 4312 */ 4313 hw = LHW_TO_HW(lhw); 4314 hw->wiphy = wiphy; 4315 hw->conf.flags |= IEEE80211_CONF_IDLE; 4316 hw->priv = (void *)(lhw + 1); 4317 4318 /* BSD Specific. */ 4319 lhw->ic = lkpi_ieee80211_ifalloc(); 4320 if (lhw->ic == NULL) { 4321 ieee80211_free_hw(hw); 4322 return (NULL); 4323 } 4324 4325 IMPROVE(); 4326 4327 return (hw); 4328 } 4329 4330 void 4331 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 4332 { 4333 struct lkpi_hw *lhw; 4334 struct mbuf *m; 4335 4336 lhw = HW_TO_LHW(hw); 4337 free(lhw->ic, M_LKPI80211); 4338 lhw->ic = NULL; 4339 4340 /* 4341 * Drain the deferred RX path. 4342 */ 4343 LKPI_80211_LHW_RXQ_LOCK(lhw); 4344 lhw->rxq_stopped = true; 4345 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4346 4347 /* Drain taskq, won't be restarted due to rxq_stopped being set. */ 4348 while (taskqueue_cancel(taskqueue_thread, &lhw->rxq_task, NULL) != 0) 4349 taskqueue_drain(taskqueue_thread, &lhw->rxq_task); 4350 4351 /* Flush mbufq (make sure to release ni refs!). */ 4352 m = mbufq_dequeue(&lhw->rxq); 4353 while (m != NULL) { 4354 struct m_tag *mtag; 4355 4356 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4357 if (mtag != NULL) { 4358 struct lkpi_80211_tag_rxni *rxni; 4359 4360 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4361 ieee80211_free_node(rxni->ni); 4362 } 4363 m_freem(m); 4364 m = mbufq_dequeue(&lhw->rxq); 4365 } 4366 KASSERT(mbufq_empty(&lhw->rxq), ("%s: lhw %p has rxq len %d != 0\n", 4367 __func__, lhw, mbufq_len(&lhw->rxq))); 4368 LKPI_80211_LHW_RXQ_LOCK_DESTROY(lhw); 4369 4370 /* Cleanup more of lhw here or in wiphy_free()? */ 4371 LKPI_80211_LHW_TXQ_LOCK_DESTROY(lhw); 4372 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 4373 LKPI_80211_LHW_LOCK_DESTROY(lhw); 4374 sx_destroy(&lhw->lvif_sx); 4375 IMPROVE(); 4376 } 4377 4378 void 4379 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 4380 { 4381 struct lkpi_hw *lhw; 4382 struct ieee80211com *ic; 4383 4384 lhw = HW_TO_LHW(hw); 4385 ic = lhw->ic; 4386 4387 /* Now set a proper name before ieee80211_ifattach(). */ 4388 ic->ic_softc = lhw; 4389 ic->ic_name = name; 4390 4391 /* XXX-BZ do we also need to set wiphy name? */ 4392 } 4393 4394 struct ieee80211_hw * 4395 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 4396 { 4397 struct lkpi_hw *lhw; 4398 4399 lhw = wiphy_priv(wiphy); 4400 return (LHW_TO_HW(lhw)); 4401 } 4402 4403 static void 4404 lkpi_radiotap_attach(struct lkpi_hw *lhw) 4405 { 4406 struct ieee80211com *ic; 4407 4408 ic = lhw->ic; 4409 ieee80211_radiotap_attach(ic, 4410 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 4411 LKPI_RTAP_TX_FLAGS_PRESENT, 4412 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 4413 LKPI_RTAP_RX_FLAGS_PRESENT); 4414 } 4415 4416 int 4417 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 4418 { 4419 struct ieee80211com *ic; 4420 struct lkpi_hw *lhw; 4421 int band, i; 4422 4423 lhw = HW_TO_LHW(hw); 4424 ic = lhw->ic; 4425 4426 /* We do it this late as wiphy->dev should be set for the name. */ 4427 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 4428 if (lhw->workq == NULL) 4429 return (-EAGAIN); 4430 4431 /* XXX-BZ figure this out how they count his... */ 4432 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 4433 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4434 hw->wiphy->perm_addr); 4435 } else if (hw->wiphy->n_addresses > 0) { 4436 /* We take the first one. */ 4437 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4438 hw->wiphy->addresses[0].addr); 4439 } else { 4440 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 4441 } 4442 4443 #ifdef __not_yet__ 4444 /* See comment in lkpi_80211_txq_tx_one(). */ 4445 ic->ic_headroom = hw->extra_tx_headroom; 4446 #endif 4447 4448 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 4449 ic->ic_opmode = IEEE80211_M_STA; 4450 4451 /* Set device capabilities. */ 4452 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 4453 ic->ic_caps = 4454 IEEE80211_C_STA | 4455 IEEE80211_C_MONITOR | 4456 IEEE80211_C_WPA | /* WPA/RSN */ 4457 #ifdef LKPI_80211_WME 4458 IEEE80211_C_WME | 4459 #endif 4460 #if 0 4461 IEEE80211_C_PMGT | 4462 #endif 4463 IEEE80211_C_SHSLOT | /* short slot time supported */ 4464 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 4465 ; 4466 #if 0 4467 /* Scanning is a different kind of beast to re-work. */ 4468 ic->ic_caps |= IEEE80211_C_BGSCAN; 4469 #endif 4470 if (lhw->ops->hw_scan) { 4471 /* 4472 * Advertise full-offload scanning. 4473 * 4474 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4475 * we essentially disable hw_scan for all drivers not setting 4476 * the flag. 4477 */ 4478 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4479 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4480 } 4481 4482 /* 4483 * The wiphy variables report bitmasks of avail antennas. 4484 * (*get_antenna) get the current bitmask sets which can be 4485 * altered by (*set_antenna) for some drivers. 4486 * XXX-BZ will the count alone do us much good long-term in net80211? 4487 */ 4488 if (hw->wiphy->available_antennas_rx || 4489 hw->wiphy->available_antennas_tx) { 4490 uint32_t rxs, txs; 4491 4492 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 4493 ic->ic_rxstream = bitcount32(rxs); 4494 ic->ic_txstream = bitcount32(txs); 4495 } 4496 } 4497 4498 ic->ic_cryptocaps = 0; 4499 #ifdef LKPI_80211_HW_CRYPTO 4500 if (hw->wiphy->n_cipher_suites > 0) { 4501 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 4502 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 4503 hw->wiphy->cipher_suites[i]); 4504 } 4505 #endif 4506 4507 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 4508 ic->ic_channels); 4509 4510 ieee80211_ifattach(ic); 4511 4512 ic->ic_update_mcast = lkpi_ic_update_mcast; 4513 ic->ic_update_promisc = lkpi_ic_update_promisc; 4514 ic->ic_update_chw = lkpi_ic_update_chw; 4515 ic->ic_parent = lkpi_ic_parent; 4516 ic->ic_scan_start = lkpi_ic_scan_start; 4517 ic->ic_scan_end = lkpi_ic_scan_end; 4518 ic->ic_set_channel = lkpi_ic_set_channel; 4519 ic->ic_transmit = lkpi_ic_transmit; 4520 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 4521 ic->ic_vap_create = lkpi_ic_vap_create; 4522 ic->ic_vap_delete = lkpi_ic_vap_delete; 4523 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 4524 ic->ic_wme.wme_update = lkpi_ic_wme_update; 4525 4526 lhw->ic_scan_curchan = ic->ic_scan_curchan; 4527 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 4528 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 4529 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 4530 4531 lhw->ic_node_alloc = ic->ic_node_alloc; 4532 ic->ic_node_alloc = lkpi_ic_node_alloc; 4533 lhw->ic_node_init = ic->ic_node_init; 4534 ic->ic_node_init = lkpi_ic_node_init; 4535 lhw->ic_node_cleanup = ic->ic_node_cleanup; 4536 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 4537 lhw->ic_node_free = ic->ic_node_free; 4538 ic->ic_node_free = lkpi_ic_node_free; 4539 4540 #ifdef LKPI_80211_HT 4541 lhw->ic_recv_action = ic->ic_recv_action; 4542 ic->ic_recv_action = lkpi_ic_recv_action; 4543 lhw->ic_send_action = ic->ic_send_action; 4544 ic->ic_send_action = lkpi_ic_send_action; 4545 4546 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 4547 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 4548 4549 lhw->ic_addba_request = ic->ic_addba_request; 4550 ic->ic_addba_request = lkpi_ic_addba_request; 4551 lhw->ic_addba_response = ic->ic_addba_response; 4552 ic->ic_addba_response = lkpi_ic_addba_response; 4553 lhw->ic_addba_stop = ic->ic_addba_stop; 4554 ic->ic_addba_stop = lkpi_ic_addba_stop; 4555 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 4556 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 4557 4558 lhw->ic_bar_response = ic->ic_bar_response; 4559 ic->ic_bar_response = lkpi_ic_bar_response; 4560 4561 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 4562 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 4563 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 4564 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 4565 #endif 4566 4567 lkpi_radiotap_attach(lhw); 4568 4569 /* 4570 * Assign the first possible channel for now; seems Realtek drivers 4571 * expect one. 4572 * Also remember the amount of bands we support and the most rates 4573 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 4574 */ 4575 lhw->supbands = lhw->max_rates = 0; 4576 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4577 struct ieee80211_supported_band *supband; 4578 struct linuxkpi_ieee80211_channel *channels; 4579 4580 supband = hw->wiphy->bands[band]; 4581 if (supband == NULL || supband->n_channels == 0) 4582 continue; 4583 4584 lhw->supbands++; 4585 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 4586 4587 /* If we have a channel, we need to keep counting supbands. */ 4588 if (hw->conf.chandef.chan != NULL) 4589 continue; 4590 4591 channels = supband->channels; 4592 for (i = 0; i < supband->n_channels; i++) { 4593 4594 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4595 continue; 4596 4597 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 4598 #ifdef LKPI_80211_HT 4599 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 4600 #endif 4601 NL80211_CHAN_NO_HT); 4602 break; 4603 } 4604 } 4605 4606 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 4607 4608 /* Make sure we do not support more than net80211 is willing to take. */ 4609 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 4610 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 4611 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 4612 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 4613 } 4614 4615 /* 4616 * The maximum supported bitrates on any band + size for 4617 * DSSS Parameter Set give our per-band IE size. 4618 * SSID is the responsibility of the driver and goes on the side. 4619 * The user specified bits coming from the vap go into the 4620 * "common ies" fields. 4621 */ 4622 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 4623 if (lhw->max_rates > IEEE80211_RATE_SIZE) 4624 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 4625 4626 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 4627 /* 4628 * net80211 does not seem to support the DSSS Parameter Set but 4629 * some of the drivers insert it so calculate the extra fixed 4630 * space in. 4631 */ 4632 lhw->scan_ie_len += 2 + 1; 4633 } 4634 4635 #if defined(LKPI_80211_HT) 4636 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 4637 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 4638 #endif 4639 #if defined(LKPI_80211_VHT) 4640 if ((ic->ic_flags_ext & IEEE80211_FEXT_VHT) != 0) 4641 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 4642 #endif 4643 4644 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 4645 if (hw->wiphy->max_scan_ie_len > 0) { 4646 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 4647 goto err; 4648 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 4649 } 4650 4651 if (bootverbose) 4652 ieee80211_announce(ic); 4653 4654 return (0); 4655 err: 4656 IMPROVE("TODO FIXME CLEANUP"); 4657 return (-EAGAIN); 4658 } 4659 4660 void 4661 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 4662 { 4663 struct lkpi_hw *lhw; 4664 struct ieee80211com *ic; 4665 4666 lhw = HW_TO_LHW(hw); 4667 ic = lhw->ic; 4668 ieee80211_ifdetach(ic); 4669 } 4670 4671 void 4672 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 4673 enum ieee80211_iface_iter flags, 4674 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 4675 void *arg) 4676 { 4677 struct lkpi_hw *lhw; 4678 struct lkpi_vif *lvif; 4679 struct ieee80211_vif *vif; 4680 bool active, atomic, nin_drv; 4681 4682 lhw = HW_TO_LHW(hw); 4683 4684 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 4685 IEEE80211_IFACE_ITER_RESUME_ALL| 4686 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 4687 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 4688 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 4689 __func__, flags); 4690 } 4691 4692 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 4693 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 4694 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 4695 4696 if (atomic) 4697 LKPI_80211_LHW_LVIF_LOCK(lhw); 4698 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4699 struct ieee80211vap *vap; 4700 4701 vif = LVIF_TO_VIF(lvif); 4702 4703 /* 4704 * If we want "active" interfaces, we need to distinguish on 4705 * whether the driver knows about them or not to be able to 4706 * handle the "resume" case correctly. Skip the ones the 4707 * driver does not know about. 4708 */ 4709 if (active && !lvif->added_to_drv && 4710 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 4711 continue; 4712 4713 /* 4714 * If we shall skip interfaces not added to the driver do so 4715 * if we haven't yet. 4716 */ 4717 if (nin_drv && !lvif->added_to_drv) 4718 continue; 4719 4720 /* 4721 * Run the iterator function if we are either not asking 4722 * asking for active only or if the VAP is "running". 4723 */ 4724 /* XXX-BZ probably should have state in the lvif as well. */ 4725 vap = LVIF_TO_VAP(lvif); 4726 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 4727 iterfunc(arg, vif->addr, vif); 4728 } 4729 if (atomic) 4730 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4731 } 4732 4733 void 4734 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 4735 struct ieee80211_vif *vif, 4736 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 4737 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 4738 void *arg) 4739 { 4740 4741 UNIMPLEMENTED; 4742 } 4743 4744 void 4745 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 4746 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 4747 void *), 4748 void *arg) 4749 { 4750 struct lkpi_hw *lhw; 4751 struct lkpi_vif *lvif; 4752 struct ieee80211_vif *vif; 4753 struct lkpi_chanctx *lchanctx; 4754 4755 KASSERT(hw != NULL && iterfunc != NULL, 4756 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4757 4758 lhw = HW_TO_LHW(hw); 4759 4760 IMPROVE("lchanctx should be its own list somewhere"); 4761 4762 LKPI_80211_LHW_LVIF_LOCK(lhw); 4763 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4764 4765 vif = LVIF_TO_VIF(lvif); 4766 if (vif->chanctx_conf == NULL) 4767 continue; 4768 4769 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 4770 if (!lchanctx->added_to_drv) 4771 continue; 4772 4773 iterfunc(hw, &lchanctx->chanctx_conf, arg); 4774 } 4775 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4776 } 4777 4778 void 4779 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4780 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4781 { 4782 struct lkpi_hw *lhw; 4783 struct lkpi_vif *lvif; 4784 struct lkpi_sta *lsta; 4785 struct ieee80211_sta *sta; 4786 4787 KASSERT(hw != NULL && iterfunc != NULL, 4788 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4789 4790 lhw = HW_TO_LHW(hw); 4791 4792 LKPI_80211_LHW_LVIF_LOCK(lhw); 4793 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4794 4795 LKPI_80211_LVIF_LOCK(lvif); 4796 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4797 if (!lsta->added_to_drv) 4798 continue; 4799 sta = LSTA_TO_STA(lsta); 4800 iterfunc(arg, sta); 4801 } 4802 LKPI_80211_LVIF_UNLOCK(lvif); 4803 } 4804 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4805 } 4806 4807 struct linuxkpi_ieee80211_regdomain * 4808 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4809 { 4810 struct linuxkpi_ieee80211_regdomain *regd; 4811 4812 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4813 GFP_KERNEL); 4814 return (regd); 4815 } 4816 4817 int 4818 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4819 struct linuxkpi_ieee80211_regdomain *regd) 4820 { 4821 struct lkpi_hw *lhw; 4822 struct ieee80211com *ic; 4823 struct ieee80211_regdomain *rd; 4824 4825 lhw = wiphy_priv(wiphy); 4826 ic = lhw->ic; 4827 4828 rd = &ic->ic_regdomain; 4829 if (rd->isocc[0] == '\0') { 4830 rd->isocc[0] = regd->alpha2[0]; 4831 rd->isocc[1] = regd->alpha2[1]; 4832 } 4833 4834 TODO(); 4835 /* XXX-BZ finish the rest. */ 4836 4837 return (0); 4838 } 4839 4840 void 4841 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4842 struct cfg80211_scan_info *info) 4843 { 4844 struct lkpi_hw *lhw; 4845 struct ieee80211com *ic; 4846 struct ieee80211_scan_state *ss; 4847 4848 lhw = wiphy_priv(hw->wiphy); 4849 ic = lhw->ic; 4850 ss = ic->ic_scan; 4851 4852 ieee80211_scan_done(ss->ss_vap); 4853 4854 LKPI_80211_LHW_SCAN_LOCK(lhw); 4855 free(lhw->hw_req, M_LKPI80211); 4856 lhw->hw_req = NULL; 4857 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4858 wakeup(lhw); 4859 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4860 4861 return; 4862 } 4863 4864 static void 4865 lkpi_80211_lhw_rxq_rx_one(struct lkpi_hw *lhw, struct mbuf *m) 4866 { 4867 struct ieee80211_node *ni; 4868 struct m_tag *mtag; 4869 int ok; 4870 4871 ni = NULL; 4872 mtag = m_tag_locate(m, MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, NULL); 4873 if (mtag != NULL) { 4874 struct lkpi_80211_tag_rxni *rxni; 4875 4876 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 4877 ni = rxni->ni; 4878 } 4879 4880 if (ni != NULL) { 4881 ok = ieee80211_input_mimo(ni, m); 4882 ieee80211_free_node(ni); /* Release the reference. */ 4883 if (ok < 0) 4884 m_freem(m); 4885 } else { 4886 ok = ieee80211_input_mimo_all(lhw->ic, m); 4887 /* mbuf got consumed. */ 4888 } 4889 4890 #ifdef LINUXKPI_DEBUG_80211 4891 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4892 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4893 #endif 4894 } 4895 4896 static void 4897 lkpi_80211_lhw_rxq_task(void *ctx, int pending) 4898 { 4899 struct lkpi_hw *lhw; 4900 struct mbufq mq; 4901 struct mbuf *m; 4902 4903 lhw = ctx; 4904 4905 #ifdef LINUXKPI_DEBUG_80211 4906 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4907 printf("%s:%d lhw %p pending %d mbuf_qlen %d\n", 4908 __func__, __LINE__, lhw, pending, mbufq_len(&lhw->rxq)); 4909 #endif 4910 4911 mbufq_init(&mq, IFQ_MAXLEN); 4912 4913 LKPI_80211_LHW_RXQ_LOCK(lhw); 4914 mbufq_concat(&mq, &lhw->rxq); 4915 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 4916 4917 m = mbufq_dequeue(&mq); 4918 while (m != NULL) { 4919 lkpi_80211_lhw_rxq_rx_one(lhw, m); 4920 m = mbufq_dequeue(&mq); 4921 } 4922 } 4923 4924 /* For %list see comment towards the end of the function. */ 4925 void 4926 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 4927 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 4928 struct list_head *list __unused) 4929 { 4930 struct lkpi_hw *lhw; 4931 struct ieee80211com *ic; 4932 struct mbuf *m; 4933 struct skb_shared_info *shinfo; 4934 struct ieee80211_rx_status *rx_status; 4935 struct ieee80211_rx_stats rx_stats; 4936 struct ieee80211_node *ni; 4937 struct ieee80211vap *vap; 4938 struct ieee80211_hdr *hdr; 4939 struct lkpi_sta *lsta; 4940 int i, offset, ok; 4941 int8_t rssi; 4942 bool is_beacon; 4943 4944 if (skb->len < 2) { 4945 /* Need 80211 stats here. */ 4946 IMPROVE(); 4947 goto err; 4948 } 4949 4950 /* 4951 * For now do the data copy; we can later improve things. Might even 4952 * have an mbuf backing the skb data then? 4953 */ 4954 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 4955 if (m == NULL) 4956 goto err; 4957 m_copyback(m, 0, skb->tail - skb->data, skb->data); 4958 4959 shinfo = skb_shinfo(skb); 4960 offset = m->m_len; 4961 for (i = 0; i < shinfo->nr_frags; i++) { 4962 m_copyback(m, offset, shinfo->frags[i].size, 4963 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 4964 shinfo->frags[i].offset); 4965 offset += shinfo->frags[i].size; 4966 } 4967 4968 rx_status = IEEE80211_SKB_RXCB(skb); 4969 4970 hdr = (void *)skb->data; 4971 is_beacon = ieee80211_is_beacon(hdr->frame_control); 4972 4973 #ifdef LINUXKPI_DEBUG_80211 4974 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 4975 goto no_trace_beacons; 4976 4977 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4978 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 4979 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 4980 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4981 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4982 shinfo, shinfo->nr_frags, 4983 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4984 4985 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4986 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4987 4988 /* Implement a dump_rxcb() !!! */ 4989 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4990 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4991 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4992 __func__, 4993 (uintmax_t)rx_status->boottime_ns, 4994 (uintmax_t)rx_status->mactime, 4995 rx_status->device_timestamp, 4996 rx_status->flag, 4997 rx_status->freq, 4998 rx_status->bw, 4999 rx_status->encoding, 5000 rx_status->ampdu_reference, 5001 rx_status->band, 5002 rx_status->chains, 5003 rx_status->chain_signal[0], 5004 rx_status->chain_signal[1], 5005 rx_status->chain_signal[2], 5006 rx_status->chain_signal[3], 5007 rx_status->signal, 5008 rx_status->enc_flags, 5009 rx_status->he_dcm, 5010 rx_status->he_gi, 5011 rx_status->he_ru, 5012 rx_status->zero_length_psdu_type, 5013 rx_status->nss, 5014 rx_status->rate_idx); 5015 no_trace_beacons: 5016 #endif 5017 5018 memset(&rx_stats, 0, sizeof(rx_stats)); 5019 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 5020 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 5021 rx_stats.c_nf = -96; 5022 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 5023 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 5024 rssi = rx_status->signal; 5025 else 5026 rssi = rx_stats.c_nf; 5027 /* 5028 * net80211 signal strength data are in .5 dBm units relative to 5029 * the current noise floor (see comment in ieee80211_node.h). 5030 */ 5031 rssi -= rx_stats.c_nf; 5032 rx_stats.c_rssi = rssi * 2; 5033 rx_stats.r_flags |= IEEE80211_R_BAND; 5034 rx_stats.c_band = 5035 lkpi_nl80211_band_to_net80211_band(rx_status->band); 5036 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 5037 rx_stats.c_freq = rx_status->freq; 5038 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 5039 5040 /* XXX (*sta_statistics)() to get to some of that? */ 5041 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 5042 5043 lhw = HW_TO_LHW(hw); 5044 ic = lhw->ic; 5045 5046 ok = ieee80211_add_rx_params(m, &rx_stats); 5047 if (ok == 0) { 5048 m_freem(m); 5049 counter_u64_add(ic->ic_ierrors, 1); 5050 goto err; 5051 } 5052 5053 if (sta != NULL) { 5054 lsta = STA_TO_LSTA(sta); 5055 ni = ieee80211_ref_node(lsta->ni); 5056 } else { 5057 struct ieee80211_frame_min *wh; 5058 5059 wh = mtod(m, struct ieee80211_frame_min *); 5060 ni = ieee80211_find_rxnode(ic, wh); 5061 if (ni != NULL) 5062 lsta = ni->ni_drv_data; 5063 } 5064 5065 if (ni != NULL) 5066 vap = ni->ni_vap; 5067 else 5068 /* 5069 * XXX-BZ can we improve this by looking at the frame hdr 5070 * or other meta-data passed up? 5071 */ 5072 vap = TAILQ_FIRST(&ic->ic_vaps); 5073 5074 #ifdef LINUXKPI_DEBUG_80211 5075 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 5076 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 5077 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 5078 ni, vap, is_beacon ? " beacon" : ""); 5079 #endif 5080 5081 if (ni != NULL && vap != NULL && is_beacon && 5082 rx_status->device_timestamp > 0 && 5083 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 5084 struct lkpi_vif *lvif; 5085 struct ieee80211_vif *vif; 5086 struct ieee80211_frame *wh; 5087 5088 wh = mtod(m, struct ieee80211_frame *); 5089 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 5090 goto skip_device_ts; 5091 5092 lvif = VAP_TO_LVIF(vap); 5093 vif = LVIF_TO_VIF(lvif); 5094 5095 IMPROVE("TIMING_BEACON_ONLY?"); 5096 /* mac80211 specific (not net80211) so keep it here. */ 5097 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 5098 /* 5099 * net80211 should take care of the other information (sync_tsf, 5100 * sync_dtim_count) as otherwise we need to parse the beacon. 5101 */ 5102 skip_device_ts: 5103 ; 5104 } 5105 5106 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 5107 ieee80211_radiotap_active_vap(vap)) { 5108 struct lkpi_radiotap_rx_hdr *rtap; 5109 5110 rtap = &lhw->rtap_rx; 5111 rtap->wr_tsft = rx_status->device_timestamp; 5112 rtap->wr_flags = 0; 5113 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 5114 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 5115 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 5116 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 5117 #if 0 /* .. or it does not given we strip it below. */ 5118 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5119 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 5120 #endif 5121 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 5122 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 5123 rtap->wr_rate = 0; 5124 IMPROVE(); 5125 /* XXX TODO status->encoding / rate_index / bw */ 5126 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 5127 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 5128 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 5129 rtap->wr_dbm_antsignal = rssi; 5130 rtap->wr_dbm_antnoise = rx_stats.c_nf; 5131 } 5132 5133 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 5134 m_adj(m, -IEEE80211_CRC_LEN); 5135 5136 #if 0 5137 if (list != NULL) { 5138 /* 5139 * Normally this would be queued up and delivered by 5140 * netif_receive_skb_list(), napi_gro_receive(), or the like. 5141 * See mt76::mac80211.c as only current possible consumer. 5142 */ 5143 IMPROVE("we simply pass the packet to net80211 to deal with."); 5144 } 5145 #endif 5146 5147 /* 5148 * Attach meta-information to the mbuf for the deferred RX path. 5149 * Currently this is best-effort. Should we need to be hard, 5150 * drop the frame and goto err; 5151 */ 5152 if (ni != NULL) { 5153 struct m_tag *mtag; 5154 struct lkpi_80211_tag_rxni *rxni; 5155 5156 mtag = m_tag_alloc(MTAG_ABI_LKPI80211, LKPI80211_TAG_RXNI, 5157 sizeof(*rxni), IEEE80211_M_NOWAIT); 5158 if (mtag != NULL) { 5159 rxni = (struct lkpi_80211_tag_rxni *)(mtag + 1); 5160 rxni->ni = ni; /* We hold a reference. */ 5161 m_tag_prepend(m, mtag); 5162 } 5163 } 5164 5165 LKPI_80211_LHW_RXQ_LOCK(lhw); 5166 if (lhw->rxq_stopped) { 5167 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5168 m_freem(m); 5169 goto err; 5170 } 5171 5172 mbufq_enqueue(&lhw->rxq, m); 5173 taskqueue_enqueue(taskqueue_thread, &lhw->rxq_task); 5174 LKPI_80211_LHW_RXQ_UNLOCK(lhw); 5175 5176 IMPROVE(); 5177 5178 err: 5179 /* The skb is ours so we can free it :-) */ 5180 kfree_skb(skb); 5181 } 5182 5183 uint8_t 5184 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 5185 { 5186 const struct ieee80211_frame *wh; 5187 uint8_t tid; 5188 5189 /* Linux seems to assume this is a QOS-Data-Frame */ 5190 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 5191 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 5192 hdr->frame_control)); 5193 5194 wh = (const struct ieee80211_frame *)hdr; 5195 tid = ieee80211_gettid(wh); 5196 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 5197 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 5198 5199 return (tid); 5200 } 5201 5202 struct wiphy * 5203 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 5204 { 5205 struct lkpi_wiphy *lwiphy; 5206 5207 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 5208 if (lwiphy == NULL) 5209 return (NULL); 5210 lwiphy->ops = ops; 5211 5212 /* XXX TODO */ 5213 return (LWIPHY_TO_WIPHY(lwiphy)); 5214 } 5215 5216 void 5217 linuxkpi_wiphy_free(struct wiphy *wiphy) 5218 { 5219 struct lkpi_wiphy *lwiphy; 5220 5221 if (wiphy == NULL) 5222 return; 5223 5224 lwiphy = WIPHY_TO_LWIPHY(wiphy); 5225 kfree(lwiphy); 5226 } 5227 5228 uint32_t 5229 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 5230 enum nl80211_band band) 5231 { 5232 5233 switch (band) { 5234 case NL80211_BAND_2GHZ: 5235 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 5236 break; 5237 case NL80211_BAND_5GHZ: 5238 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 5239 break; 5240 default: 5241 /* XXX abort, retry, error, panic? */ 5242 break; 5243 } 5244 5245 return (0); 5246 } 5247 5248 uint32_t 5249 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 5250 { 5251 5252 return (ieee80211_mhz2ieee(freq, 0)); 5253 } 5254 5255 #if 0 5256 static struct lkpi_sta * 5257 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 5258 { 5259 struct lkpi_sta *lsta, *temp; 5260 5261 LKPI_80211_LVIF_LOCK(lvif); 5262 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5263 if (lsta->ni == ni) { 5264 LKPI_80211_LVIF_UNLOCK(lvif); 5265 return (lsta); 5266 } 5267 } 5268 LKPI_80211_LVIF_UNLOCK(lvif); 5269 5270 return (NULL); 5271 } 5272 #endif 5273 5274 struct ieee80211_sta * 5275 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 5276 { 5277 struct lkpi_vif *lvif; 5278 struct lkpi_sta *lsta, *temp; 5279 struct ieee80211_sta *sta; 5280 5281 lvif = VIF_TO_LVIF(vif); 5282 5283 LKPI_80211_LVIF_LOCK(lvif); 5284 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 5285 sta = LSTA_TO_STA(lsta); 5286 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 5287 LKPI_80211_LVIF_UNLOCK(lvif); 5288 return (sta); 5289 } 5290 } 5291 LKPI_80211_LVIF_UNLOCK(lvif); 5292 return (NULL); 5293 } 5294 5295 struct ieee80211_sta * 5296 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 5297 const uint8_t *addr, const uint8_t *ourvifaddr) 5298 { 5299 struct lkpi_hw *lhw; 5300 struct lkpi_vif *lvif; 5301 struct lkpi_sta *lsta; 5302 struct ieee80211_vif *vif; 5303 struct ieee80211_sta *sta; 5304 5305 lhw = wiphy_priv(hw->wiphy); 5306 sta = NULL; 5307 5308 LKPI_80211_LHW_LVIF_LOCK(lhw); 5309 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5310 5311 /* XXX-BZ check our address from the vif. */ 5312 5313 vif = LVIF_TO_VIF(lvif); 5314 if (ourvifaddr != NULL && 5315 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 5316 continue; 5317 sta = linuxkpi_ieee80211_find_sta(vif, addr); 5318 if (sta != NULL) 5319 break; 5320 } 5321 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5322 5323 if (sta != NULL) { 5324 lsta = STA_TO_LSTA(sta); 5325 if (!lsta->added_to_drv) 5326 return (NULL); 5327 } 5328 5329 return (sta); 5330 } 5331 5332 struct sk_buff * 5333 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 5334 struct ieee80211_txq *txq) 5335 { 5336 struct lkpi_txq *ltxq; 5337 struct lkpi_vif *lvif; 5338 struct sk_buff *skb; 5339 5340 skb = NULL; 5341 ltxq = TXQ_TO_LTXQ(txq); 5342 ltxq->seen_dequeue = true; 5343 5344 if (ltxq->stopped) 5345 goto stopped; 5346 5347 lvif = VIF_TO_LVIF(ltxq->txq.vif); 5348 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 5349 ltxq->stopped = true; 5350 goto stopped; 5351 } 5352 5353 IMPROVE("hw(TX_FRAG_LIST)"); 5354 5355 LKPI_80211_LTXQ_LOCK(ltxq); 5356 skb = skb_dequeue(<xq->skbq); 5357 LKPI_80211_LTXQ_UNLOCK(ltxq); 5358 5359 stopped: 5360 return (skb); 5361 } 5362 5363 void 5364 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 5365 unsigned long *frame_cnt, unsigned long *byte_cnt) 5366 { 5367 struct lkpi_txq *ltxq; 5368 struct sk_buff *skb; 5369 unsigned long fc, bc; 5370 5371 ltxq = TXQ_TO_LTXQ(txq); 5372 5373 fc = bc = 0; 5374 LKPI_80211_LTXQ_LOCK(ltxq); 5375 skb_queue_walk(<xq->skbq, skb) { 5376 fc++; 5377 bc += skb->len; 5378 } 5379 LKPI_80211_LTXQ_UNLOCK(ltxq); 5380 if (frame_cnt) 5381 *frame_cnt = fc; 5382 if (byte_cnt) 5383 *byte_cnt = bc; 5384 5385 /* Validate that this is doing the correct thing. */ 5386 /* Should we keep track on en/dequeue? */ 5387 IMPROVE(); 5388 } 5389 5390 /* 5391 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 5392 * The latter tries to derive the success status from the info flags 5393 * passed back from the driver. rawx_mit() saves the ni on the m and the 5394 * m on the skb for us to be able to give feedback to net80211. 5395 */ 5396 static void 5397 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5398 int status) 5399 { 5400 struct ieee80211_node *ni; 5401 struct mbuf *m; 5402 5403 m = skb->m; 5404 skb->m = NULL; 5405 5406 if (m != NULL) { 5407 ni = m->m_pkthdr.PH_loc.ptr; 5408 /* Status: 0 is ok, != 0 is error. */ 5409 ieee80211_tx_complete(ni, m, status); 5410 /* ni & mbuf were consumed. */ 5411 } 5412 } 5413 5414 void 5415 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5416 int status) 5417 { 5418 5419 _lkpi_ieee80211_free_txskb(hw, skb, status); 5420 kfree_skb(skb); 5421 } 5422 5423 void 5424 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 5425 struct ieee80211_tx_status *txstat) 5426 { 5427 struct sk_buff *skb; 5428 struct ieee80211_tx_info *info; 5429 struct ieee80211_ratectl_tx_status txs; 5430 struct ieee80211_node *ni; 5431 int status; 5432 5433 skb = txstat->skb; 5434 if (skb->m != NULL) { 5435 struct mbuf *m; 5436 5437 m = skb->m; 5438 ni = m->m_pkthdr.PH_loc.ptr; 5439 memset(&txs, 0, sizeof(txs)); 5440 } else { 5441 ni = NULL; 5442 } 5443 5444 info = txstat->info; 5445 if (info->flags & IEEE80211_TX_STAT_ACK) { 5446 status = 0; /* No error. */ 5447 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 5448 } else { 5449 status = 1; 5450 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 5451 } 5452 5453 if (ni != NULL) { 5454 int ridx __unused; 5455 #ifdef LINUXKPI_DEBUG_80211 5456 int old_rate; 5457 5458 old_rate = ni->ni_vap->iv_bss->ni_txrate; 5459 #endif 5460 txs.pktlen = skb->len; 5461 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 5462 if (info->status.rates[0].count > 1) { 5463 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 5464 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 5465 } 5466 #if 0 /* Unused in net80211 currently. */ 5467 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 5468 txs.final_rate = info->status.rates[0].idx; 5469 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 5470 #endif 5471 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 5472 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 5473 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 5474 } 5475 5476 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 5477 ieee80211_ratectl_tx_complete(ni, &txs); 5478 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 5479 5480 #ifdef LINUXKPI_DEBUG_80211 5481 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 5482 printf("TX-RATE: %s: old %d new %d ridx %d, " 5483 "long_retries %d\n", __func__, 5484 old_rate, ni->ni_vap->iv_bss->ni_txrate, 5485 ridx, txs.long_retries); 5486 } 5487 #endif 5488 } 5489 5490 #ifdef LINUXKPI_DEBUG_80211 5491 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5492 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 5493 "band %u hw_queue %u tx_time_est %d : " 5494 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 5495 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 5496 "tx_time %u flags %#x " 5497 "status_driver_data [ %p %p ]\n", 5498 __func__, hw, skb, status, info->flags, 5499 info->band, info->hw_queue, info->tx_time_est, 5500 info->status.rates[0].idx, info->status.rates[0].count, 5501 info->status.rates[0].flags, 5502 info->status.rates[1].idx, info->status.rates[1].count, 5503 info->status.rates[1].flags, 5504 info->status.rates[2].idx, info->status.rates[2].count, 5505 info->status.rates[2].flags, 5506 info->status.rates[3].idx, info->status.rates[3].count, 5507 info->status.rates[3].flags, 5508 info->status.ack_signal, info->status.ampdu_ack_len, 5509 info->status.ampdu_len, info->status.antenna, 5510 info->status.tx_time, info->status.flags, 5511 info->status.status_driver_data[0], 5512 info->status.status_driver_data[1]); 5513 #endif 5514 5515 if (txstat->free_list) { 5516 _lkpi_ieee80211_free_txskb(hw, skb, status); 5517 list_add_tail(&skb->list, txstat->free_list); 5518 } else { 5519 linuxkpi_ieee80211_free_txskb(hw, skb, status); 5520 } 5521 } 5522 5523 void 5524 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 5525 { 5526 struct ieee80211_tx_status status; 5527 5528 memset(&status, 0, sizeof(status)); 5529 status.info = IEEE80211_SKB_CB(skb); 5530 status.skb = skb; 5531 /* sta, n_rates, rates, free_list? */ 5532 5533 ieee80211_tx_status_ext(hw, &status); 5534 } 5535 5536 /* 5537 * This is an internal bandaid for the moment for the way we glue 5538 * skbs and mbufs together for TX. Once we have skbs backed by 5539 * mbufs this should go away. 5540 * This is a public function but kept on the private KPI (lkpi_) 5541 * and is not exposed by a header file. 5542 */ 5543 static void 5544 lkpi_ieee80211_free_skb_mbuf(void *p) 5545 { 5546 struct ieee80211_node *ni; 5547 struct mbuf *m; 5548 5549 if (p == NULL) 5550 return; 5551 5552 m = (struct mbuf *)p; 5553 M_ASSERTPKTHDR(m); 5554 5555 ni = m->m_pkthdr.PH_loc.ptr; 5556 m->m_pkthdr.PH_loc.ptr = NULL; 5557 if (ni != NULL) 5558 ieee80211_free_node(ni); 5559 m_freem(m); 5560 } 5561 5562 void 5563 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 5564 struct delayed_work *w, int delay) 5565 { 5566 struct lkpi_hw *lhw; 5567 5568 /* Need to make sure hw is in a stable (non-suspended) state. */ 5569 IMPROVE(); 5570 5571 lhw = HW_TO_LHW(hw); 5572 queue_delayed_work(lhw->workq, w, delay); 5573 } 5574 5575 void 5576 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 5577 struct work_struct *w) 5578 { 5579 struct lkpi_hw *lhw; 5580 5581 /* Need to make sure hw is in a stable (non-suspended) state. */ 5582 IMPROVE(); 5583 5584 lhw = HW_TO_LHW(hw); 5585 queue_work(lhw->workq, w); 5586 } 5587 5588 struct sk_buff * 5589 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 5590 uint8_t *ssid, size_t ssid_len, size_t tailroom) 5591 { 5592 struct sk_buff *skb; 5593 struct ieee80211_frame *wh; 5594 uint8_t *p; 5595 size_t len; 5596 5597 len = sizeof(*wh); 5598 len += 2 + ssid_len; 5599 5600 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 5601 if (skb == NULL) 5602 return (NULL); 5603 5604 skb_reserve(skb, hw->extra_tx_headroom); 5605 5606 wh = skb_put_zero(skb, sizeof(*wh)); 5607 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 5608 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 5609 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 5610 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 5611 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 5612 5613 p = skb_put(skb, 2 + ssid_len); 5614 *p++ = IEEE80211_ELEMID_SSID; 5615 *p++ = ssid_len; 5616 if (ssid_len > 0) 5617 memcpy(p, ssid, ssid_len); 5618 5619 return (skb); 5620 } 5621 5622 struct sk_buff * 5623 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 5624 struct ieee80211_vif *vif) 5625 { 5626 struct lkpi_vif *lvif; 5627 struct ieee80211vap *vap; 5628 struct sk_buff *skb; 5629 struct ieee80211_frame_pspoll *psp; 5630 uint16_t v; 5631 5632 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 5633 if (skb == NULL) 5634 return (NULL); 5635 5636 skb_reserve(skb, hw->extra_tx_headroom); 5637 5638 lvif = VIF_TO_LVIF(vif); 5639 vap = LVIF_TO_VAP(lvif); 5640 5641 psp = skb_put_zero(skb, sizeof(*psp)); 5642 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 5643 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 5644 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 5645 memcpy(&psp->i_aid, &v, sizeof(v)); 5646 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 5647 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 5648 5649 return (skb); 5650 } 5651 5652 struct sk_buff * 5653 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 5654 struct ieee80211_vif *vif, int linkid, bool qos) 5655 { 5656 struct lkpi_vif *lvif; 5657 struct ieee80211vap *vap; 5658 struct sk_buff *skb; 5659 struct ieee80211_frame *nullf; 5660 5661 IMPROVE("linkid"); 5662 5663 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 5664 if (skb == NULL) 5665 return (NULL); 5666 5667 skb_reserve(skb, hw->extra_tx_headroom); 5668 5669 lvif = VIF_TO_LVIF(vif); 5670 vap = LVIF_TO_VAP(lvif); 5671 5672 nullf = skb_put_zero(skb, sizeof(*nullf)); 5673 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 5674 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 5675 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 5676 5677 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 5678 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 5679 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 5680 5681 return (skb); 5682 } 5683 5684 struct wireless_dev * 5685 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 5686 { 5687 struct lkpi_vif *lvif; 5688 5689 lvif = VIF_TO_LVIF(vif); 5690 return (&lvif->wdev); 5691 } 5692 5693 void 5694 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 5695 { 5696 struct lkpi_vif *lvif; 5697 struct ieee80211vap *vap; 5698 enum ieee80211_state nstate; 5699 int arg; 5700 5701 lvif = VIF_TO_LVIF(vif); 5702 vap = LVIF_TO_VAP(lvif); 5703 5704 /* 5705 * Go to init; otherwise we need to elaborately check state and 5706 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 5707 * Let the statemachine handle all neccessary changes. 5708 */ 5709 nstate = IEEE80211_S_INIT; 5710 arg = 0; /* Not a valid reason. */ 5711 5712 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5713 vif, vap, ieee80211_state_name[vap->iv_state]); 5714 ieee80211_new_state(vap, nstate, arg); 5715 } 5716 5717 void 5718 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 5719 { 5720 struct lkpi_vif *lvif; 5721 struct ieee80211vap *vap; 5722 5723 lvif = VIF_TO_LVIF(vif); 5724 vap = LVIF_TO_VAP(lvif); 5725 5726 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5727 vif, vap, ieee80211_state_name[vap->iv_state]); 5728 ieee80211_beacon_miss(vap->iv_ic); 5729 } 5730 5731 /* -------------------------------------------------------------------------- */ 5732 5733 void 5734 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 5735 { 5736 struct lkpi_hw *lhw; 5737 struct lkpi_vif *lvif; 5738 struct ieee80211_vif *vif; 5739 int ac_count, ac; 5740 5741 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5742 __func__, qnum, hw->queues, hw)); 5743 5744 lhw = wiphy_priv(hw->wiphy); 5745 5746 /* See lkpi_ic_vap_create(). */ 5747 if (hw->queues >= IEEE80211_NUM_ACS) 5748 ac_count = IEEE80211_NUM_ACS; 5749 else 5750 ac_count = 1; 5751 5752 LKPI_80211_LHW_LVIF_LOCK(lhw); 5753 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5754 5755 vif = LVIF_TO_VIF(lvif); 5756 for (ac = 0; ac < ac_count; ac++) { 5757 IMPROVE_TXQ("LOCKING"); 5758 if (qnum == vif->hw_queue[ac]) { 5759 #ifdef LINUXKPI_DEBUG_80211 5760 /* 5761 * For now log this to better understand 5762 * how this is supposed to work. 5763 */ 5764 if (lvif->hw_queue_stopped[ac] && 5765 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5766 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5767 "lvif %p vif %p ac %d qnum %d already " 5768 "stopped\n", __func__, __LINE__, 5769 lhw, hw, lvif, vif, ac, qnum); 5770 #endif 5771 lvif->hw_queue_stopped[ac] = true; 5772 } 5773 } 5774 } 5775 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5776 } 5777 5778 void 5779 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 5780 { 5781 int i; 5782 5783 IMPROVE_TXQ("Locking; do we need further info?"); 5784 for (i = 0; i < hw->queues; i++) 5785 linuxkpi_ieee80211_stop_queue(hw, i); 5786 } 5787 5788 5789 static void 5790 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 5791 { 5792 struct lkpi_hw *lhw; 5793 struct lkpi_vif *lvif; 5794 struct lkpi_sta *lsta; 5795 int ac_count, ac, tid; 5796 5797 /* See lkpi_ic_vap_create(). */ 5798 if (hw->queues >= IEEE80211_NUM_ACS) 5799 ac_count = IEEE80211_NUM_ACS; 5800 else 5801 ac_count = 1; 5802 5803 lhw = wiphy_priv(hw->wiphy); 5804 5805 IMPROVE_TXQ("Locking"); 5806 LKPI_80211_LHW_LVIF_LOCK(lhw); 5807 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5808 struct ieee80211_vif *vif; 5809 5810 vif = LVIF_TO_VIF(lvif); 5811 for (ac = 0; ac < ac_count; ac++) { 5812 5813 if (hwq == vif->hw_queue[ac]) { 5814 5815 /* XXX-BZ what about software scan? */ 5816 5817 #ifdef LINUXKPI_DEBUG_80211 5818 /* 5819 * For now log this to better understand 5820 * how this is supposed to work. 5821 */ 5822 if (!lvif->hw_queue_stopped[ac] && 5823 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5824 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5825 "lvif %p vif %p ac %d hw_q not stopped\n", 5826 __func__, __LINE__, 5827 lhw, hw, lvif, vif, ac); 5828 #endif 5829 lvif->hw_queue_stopped[ac] = false; 5830 5831 LKPI_80211_LVIF_LOCK(lvif); 5832 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 5833 struct ieee80211_sta *sta; 5834 5835 sta = LSTA_TO_STA(lsta); 5836 for (tid = 0; tid < nitems(sta->txq); tid++) { 5837 struct lkpi_txq *ltxq; 5838 5839 if (sta->txq[tid] == NULL) 5840 continue; 5841 5842 if (sta->txq[tid]->ac != ac) 5843 continue; 5844 5845 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 5846 if (!ltxq->stopped) 5847 continue; 5848 5849 ltxq->stopped = false; 5850 5851 /* XXX-BZ see when this explodes with all the locking. taskq? */ 5852 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 5853 } 5854 } 5855 LKPI_80211_LVIF_UNLOCK(lvif); 5856 } 5857 } 5858 } 5859 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5860 } 5861 5862 void 5863 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 5864 { 5865 int i; 5866 5867 IMPROVE_TXQ("Is this all/enough here?"); 5868 for (i = 0; i < hw->queues; i++) 5869 lkpi_ieee80211_wake_queues(hw, i); 5870 } 5871 5872 void 5873 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 5874 { 5875 5876 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5877 __func__, qnum, hw->queues, hw)); 5878 5879 lkpi_ieee80211_wake_queues(hw, qnum); 5880 } 5881 5882 /* This is just hardware queues. */ 5883 void 5884 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 5885 { 5886 struct lkpi_hw *lhw; 5887 5888 lhw = HW_TO_LHW(hw); 5889 5890 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 5891 IMPROVE_TXQ("LOCKING"); 5892 if (++lhw->txq_generation[ac] == 0) 5893 lhw->txq_generation[ac]++; 5894 } 5895 5896 struct ieee80211_txq * 5897 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 5898 { 5899 struct lkpi_hw *lhw; 5900 struct ieee80211_txq *txq; 5901 struct lkpi_txq *ltxq; 5902 5903 lhw = HW_TO_LHW(hw); 5904 txq = NULL; 5905 5906 IMPROVE_TXQ("LOCKING"); 5907 5908 /* Check that we are scheduled. */ 5909 if (lhw->txq_generation[ac] == 0) 5910 goto out; 5911 5912 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 5913 if (ltxq == NULL) 5914 goto out; 5915 if (ltxq->txq_generation == lhw->txq_generation[ac]) 5916 goto out; 5917 5918 ltxq->txq_generation = lhw->txq_generation[ac]; 5919 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 5920 txq = <xq->txq; 5921 TAILQ_ELEM_INIT(ltxq, txq_entry); 5922 5923 out: 5924 return (txq); 5925 } 5926 5927 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 5928 struct ieee80211_txq *txq, bool withoutpkts) 5929 { 5930 struct lkpi_hw *lhw; 5931 struct lkpi_txq *ltxq; 5932 bool ltxq_empty; 5933 5934 ltxq = TXQ_TO_LTXQ(txq); 5935 5936 IMPROVE_TXQ("LOCKING"); 5937 5938 /* Only schedule if work to do or asked to anyway. */ 5939 LKPI_80211_LTXQ_LOCK(ltxq); 5940 ltxq_empty = skb_queue_empty(<xq->skbq); 5941 LKPI_80211_LTXQ_UNLOCK(ltxq); 5942 if (!withoutpkts && ltxq_empty) 5943 goto out; 5944 5945 /* Make sure we do not double-schedule. */ 5946 if (ltxq->txq_entry.tqe_next != NULL) 5947 goto out; 5948 5949 lhw = HW_TO_LHW(hw); 5950 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 5951 out: 5952 return; 5953 } 5954 5955 void 5956 linuxkpi_ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, 5957 struct ieee80211_txq *txq) 5958 { 5959 struct lkpi_hw *lhw; 5960 struct ieee80211_txq *ntxq; 5961 struct ieee80211_tx_control control; 5962 struct sk_buff *skb; 5963 5964 lhw = HW_TO_LHW(hw); 5965 5966 LKPI_80211_LHW_TXQ_LOCK(lhw); 5967 ieee80211_txq_schedule_start(hw, txq->ac); 5968 do { 5969 ntxq = ieee80211_next_txq(hw, txq->ac); 5970 if (ntxq == NULL) 5971 break; 5972 5973 memset(&control, 0, sizeof(control)); 5974 control.sta = ntxq->sta; 5975 do { 5976 skb = linuxkpi_ieee80211_tx_dequeue(hw, ntxq); 5977 if (skb == NULL) 5978 break; 5979 lkpi_80211_mo_tx(hw, &control, skb); 5980 } while(1); 5981 5982 ieee80211_return_txq(hw, ntxq, false); 5983 } while (1); 5984 ieee80211_txq_schedule_end(hw, txq->ac); 5985 LKPI_80211_LHW_TXQ_UNLOCK(lhw); 5986 } 5987 5988 /* -------------------------------------------------------------------------- */ 5989 5990 struct lkpi_cfg80211_bss { 5991 u_int refcnt; 5992 struct cfg80211_bss bss; 5993 }; 5994 5995 struct lkpi_cfg80211_get_bss_iter_lookup { 5996 struct wiphy *wiphy; 5997 struct linuxkpi_ieee80211_channel *chan; 5998 const uint8_t *bssid; 5999 const uint8_t *ssid; 6000 size_t ssid_len; 6001 enum ieee80211_bss_type bss_type; 6002 enum ieee80211_privacy privacy; 6003 6004 /* 6005 * Something to store a copy of the result as the net80211 scan cache 6006 * is not refoucnted so a scan entry might go away any time. 6007 */ 6008 bool match; 6009 struct cfg80211_bss *bss; 6010 }; 6011 6012 static void 6013 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 6014 { 6015 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 6016 size_t ielen; 6017 6018 lookup = arg; 6019 6020 /* Do not try to find another match. */ 6021 if (lookup->match) 6022 return; 6023 6024 /* Nothing to store result. */ 6025 if (lookup->bss == NULL) 6026 return; 6027 6028 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 6029 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 6030 /* We have no idea what to compare to as the drivers only request ANY */ 6031 return; 6032 } 6033 6034 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 6035 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 6036 /* We have no idea what to compare to as the drivers only request ANY */ 6037 return; 6038 } 6039 6040 if (lookup->chan != NULL) { 6041 struct linuxkpi_ieee80211_channel *chan; 6042 6043 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 6044 se->se_chan->ic_freq); 6045 if (chan == NULL || chan != lookup->chan) 6046 return; 6047 } 6048 6049 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 6050 return; 6051 6052 if (lookup->ssid) { 6053 if (lookup->ssid_len != se->se_ssid[1] || 6054 se->se_ssid[1] == 0) 6055 return; 6056 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 6057 return; 6058 } 6059 6060 ielen = se->se_ies.len; 6061 6062 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 6063 M_LKPI80211, M_NOWAIT | M_ZERO); 6064 if (lookup->bss->ies == NULL) 6065 return; 6066 6067 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 6068 lookup->bss->ies->len = ielen; 6069 if (ielen) 6070 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 6071 6072 lookup->match = true; 6073 } 6074 6075 struct cfg80211_bss * 6076 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 6077 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 6078 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 6079 { 6080 struct lkpi_cfg80211_bss *lbss; 6081 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 6082 struct lkpi_hw *lhw; 6083 struct ieee80211vap *vap; 6084 6085 lhw = wiphy_priv(wiphy); 6086 6087 /* Let's hope we can alloc. */ 6088 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 6089 if (lbss == NULL) { 6090 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 6091 return (NULL); 6092 } 6093 6094 lookup.wiphy = wiphy; 6095 lookup.chan = chan; 6096 lookup.bssid = bssid; 6097 lookup.ssid = ssid; 6098 lookup.ssid_len = ssid_len; 6099 lookup.bss_type = bss_type; 6100 lookup.privacy = privacy; 6101 lookup.match = false; 6102 lookup.bss = &lbss->bss; 6103 6104 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 6105 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 6106 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 6107 if (!lookup.match) { 6108 free(lbss, M_LKPI80211); 6109 return (NULL); 6110 } 6111 6112 refcount_init(&lbss->refcnt, 1); 6113 return (&lbss->bss); 6114 } 6115 6116 void 6117 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 6118 { 6119 struct lkpi_cfg80211_bss *lbss; 6120 6121 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 6122 6123 /* Free everything again on refcount ... */ 6124 if (refcount_release(&lbss->refcnt)) { 6125 free(lbss->bss.ies, M_LKPI80211); 6126 free(lbss, M_LKPI80211); 6127 } 6128 } 6129 6130 void 6131 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 6132 { 6133 struct lkpi_hw *lhw; 6134 struct ieee80211com *ic; 6135 struct ieee80211vap *vap; 6136 6137 lhw = wiphy_priv(wiphy); 6138 ic = lhw->ic; 6139 6140 /* 6141 * If we haven't called ieee80211_ifattach() yet 6142 * or there is no VAP, there are no scans to flush. 6143 */ 6144 if (ic == NULL || 6145 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 6146 return; 6147 6148 /* Should only happen on the current one? Not seen it late enough. */ 6149 IEEE80211_LOCK(ic); 6150 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 6151 ieee80211_scan_flush(vap); 6152 IEEE80211_UNLOCK(ic); 6153 } 6154 6155 /* -------------------------------------------------------------------------- */ 6156 6157 MODULE_VERSION(linuxkpi_wlan, 1); 6158 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 6159 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 6160