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