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