1 /*- 2 * Copyright (c) 2020-2023 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/param.h> 43 #include <sys/types.h> 44 #include <sys/kernel.h> 45 #include <sys/errno.h> 46 #include <sys/malloc.h> 47 #include <sys/module.h> 48 #include <sys/mutex.h> 49 #include <sys/socket.h> 50 #include <sys/sysctl.h> 51 #include <sys/queue.h> 52 #include <sys/taskqueue.h> 53 #include <sys/libkern.h> 54 55 #include <net/if.h> 56 #include <net/if_var.h> 57 #include <net/if_media.h> 58 #include <net/ethernet.h> 59 60 #include <net80211/ieee80211_var.h> 61 #include <net80211/ieee80211_proto.h> 62 #include <net80211/ieee80211_ratectl.h> 63 #include <net80211/ieee80211_radiotap.h> 64 #include <net80211/ieee80211_vht.h> 65 66 #define LINUXKPI_NET80211 67 #include <net/mac80211.h> 68 69 #include <linux/workqueue.h> 70 #include "linux_80211.h" 71 72 #define LKPI_80211_WME 73 /* #define LKPI_80211_HW_CRYPTO */ 74 /* #define LKPI_80211_VHT */ 75 /* #define LKPI_80211_HT */ 76 #if defined(LKPI_80211_VHT) && !defined(LKPI_80211_HT) 77 #define LKPI_80211_HT 78 #endif 79 80 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 81 82 /* XXX-BZ really want this and others in queue.h */ 83 #define TAILQ_ELEM_INIT(elm, field) do { \ 84 (elm)->field.tqe_next = NULL; \ 85 (elm)->field.tqe_prev = NULL; \ 86 } while (0) 87 88 /* -------------------------------------------------------------------------- */ 89 90 /* Keep public for as long as header files are using it too. */ 91 int linuxkpi_debug_80211; 92 93 #ifdef LINUXKPI_DEBUG_80211 94 SYSCTL_DECL(_compat_linuxkpi); 95 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 96 "LinuxKPI 802.11 compatibility layer"); 97 98 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 99 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 100 101 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 102 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 103 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 104 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 105 #else 106 #define UNIMPLEMENTED do { } while (0) 107 #define TRACEOK() do { } while (0) 108 #endif 109 110 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 111 #ifndef PREP_TX_INFO_DURATION 112 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 113 #endif 114 115 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 116 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 117 118 /* IEEE 802.11-05/0257r1 */ 119 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 120 121 /* IEEE 802.11e Table 20i-UP-to-AC mappings. */ 122 static const uint8_t ieee80211e_up_to_ac[] = { 123 IEEE80211_AC_BE, 124 IEEE80211_AC_BK, 125 IEEE80211_AC_BK, 126 IEEE80211_AC_BE, 127 IEEE80211_AC_VI, 128 IEEE80211_AC_VI, 129 IEEE80211_AC_VO, 130 IEEE80211_AC_VO, 131 #if 0 132 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 133 #endif 134 }; 135 136 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 137 /* 138 * XXX TODO need a "glue layer" to link cfg80211 ops to 139 * mac80211 and to the driver or net80211. 140 * Can we pass some on 1:1? Need to compare the (*f)(). 141 */ 142 }; 143 144 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 145 struct ieee80211_node *); 146 static void lkpi_80211_txq_task(void *, int); 147 static void lkpi_ieee80211_free_skb_mbuf(void *); 148 #ifdef LKPI_80211_WME 149 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 150 #endif 151 152 #if defined(LKPI_80211_HT) 153 static void 154 lkpi_sta_sync_ht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *ht_rx_nss) 155 { 156 struct ieee80211vap *vap; 157 uint8_t *ie; 158 struct ieee80211_ht_cap *htcap; 159 int i, rx_nss; 160 161 if ((ni->ni_flags & IEEE80211_NODE_HT) == 0) 162 return; 163 164 if (IEEE80211_IS_CHAN_HT(ni->ni_chan) && 165 IEEE80211_IS_CHAN_HT40(ni->ni_chan)) 166 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_40; 167 168 sta->deflink.ht_cap.ht_supported = true; 169 170 /* htcap->ampdu_params_info */ 171 vap = ni->ni_vap; 172 sta->deflink.ht_cap.ampdu_density = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MPDUDENSITY); 173 if (sta->deflink.ht_cap.ampdu_density > vap->iv_ampdu_density) 174 sta->deflink.ht_cap.ampdu_density = vap->iv_ampdu_density; 175 sta->deflink.ht_cap.ampdu_factor = _IEEE80211_MASKSHIFT(ni->ni_htparam, IEEE80211_HTCAP_MAXRXAMPDU); 176 if (sta->deflink.ht_cap.ampdu_factor > vap->iv_ampdu_rxmax) 177 sta->deflink.ht_cap.ampdu_factor = vap->iv_ampdu_rxmax; 178 179 ie = ni->ni_ies.htcap_ie; 180 KASSERT(ie != NULL, ("%s: HT but no htcap_ie on ni %p\n", __func__, ni)); 181 if (ie[0] == IEEE80211_ELEMID_VENDOR) 182 ie += 4; 183 ie += 2; 184 htcap = (struct ieee80211_ht_cap *)ie; 185 sta->deflink.ht_cap.cap = htcap->cap_info; 186 sta->deflink.ht_cap.mcs = htcap->mcs; 187 188 rx_nss = 0; 189 for (i = 0; i < nitems(htcap->mcs.rx_mask); i++) { 190 if (htcap->mcs.rx_mask[i]) 191 rx_nss++; 192 } 193 if (ht_rx_nss != NULL) 194 *ht_rx_nss = rx_nss; 195 196 IMPROVE("sta->wme, sta->deflink.agg.max*"); 197 } 198 #endif 199 200 #if defined(LKPI_80211_VHT) 201 static void 202 lkpi_sta_sync_vht_from_ni(struct ieee80211_sta *sta, struct ieee80211_node *ni, int *vht_rx_nss) 203 { 204 205 if ((ni->ni_flags & IEEE80211_NODE_VHT) == 0) 206 return; 207 208 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 209 #ifdef __notyet__ 210 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 211 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; /* XXX? */ 212 } else 213 #endif 214 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 215 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_160; 216 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 217 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_80; 218 } 219 220 IMPROVE("VHT sync ni to sta"); 221 return; 222 } 223 #endif 224 225 static void 226 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 227 const char *_f, int _l) 228 { 229 230 #ifdef LINUXKPI_DEBUG_80211 231 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 232 return; 233 if (lsta == NULL) 234 return; 235 236 printf("%s:%d lsta %p ni %p sta %p\n", 237 _f, _l, lsta, ni, &lsta->sta); 238 if (ni != NULL) 239 ieee80211_dump_node(NULL, ni); 240 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 241 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 242 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 243 #endif 244 } 245 246 static void 247 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 248 { 249 struct ieee80211_node *ni; 250 251 IMPROVE("XXX-BZ remove tqe_prev check once ni-sta-state-sync is fixed"); 252 253 ni = lsta->ni; 254 255 LKPI_80211_LVIF_LOCK(lvif); 256 if (lsta->lsta_entry.tqe_prev != NULL) 257 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 258 LKPI_80211_LVIF_UNLOCK(lvif); 259 260 lsta->ni = NULL; 261 ni->ni_drv_data = NULL; 262 if (ni != NULL) 263 ieee80211_free_node(ni); 264 265 IMPROVE("more from lkpi_ic_node_free() should happen here."); 266 267 free(lsta, M_LKPI80211); 268 } 269 270 static struct lkpi_sta * 271 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 272 struct ieee80211_hw *hw, struct ieee80211_node *ni) 273 { 274 struct lkpi_sta *lsta; 275 struct lkpi_vif *lvif; 276 struct ieee80211_vif *vif; 277 struct ieee80211_sta *sta; 278 int band, i, tid; 279 int ht_rx_nss; 280 int vht_rx_nss; 281 282 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 283 M_NOWAIT | M_ZERO); 284 if (lsta == NULL) 285 return (NULL); 286 287 lsta->added_to_drv = false; 288 lsta->state = IEEE80211_STA_NOTEXIST; 289 #if 0 290 /* 291 * This needs to be done in node_init() as ieee80211_alloc_node() 292 * will initialise the refcount after us. 293 */ 294 lsta->ni = ieee80211_ref_node(ni); 295 #endif 296 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 297 ni->ni_drv_data = lsta; 298 299 lvif = VAP_TO_LVIF(vap); 300 vif = LVIF_TO_VIF(lvif); 301 sta = LSTA_TO_STA(lsta); 302 303 IEEE80211_ADDR_COPY(sta->addr, mac); 304 305 /* TXQ */ 306 for (tid = 0; tid < nitems(sta->txq); tid++) { 307 struct lkpi_txq *ltxq; 308 309 /* We are not limiting ourselves to hw.queues here. */ 310 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 311 M_LKPI80211, M_NOWAIT | M_ZERO); 312 if (ltxq == NULL) 313 goto cleanup; 314 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 315 if (tid == IEEE80211_NUM_TIDS) { 316 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 317 free(ltxq, M_LKPI80211); 318 continue; 319 } 320 IMPROVE("AP/if we support non-STA here too"); 321 ltxq->txq.ac = IEEE80211_AC_VO; 322 } else { 323 ltxq->txq.ac = ieee80211e_up_to_ac[tid & 7]; 324 } 325 ltxq->seen_dequeue = false; 326 ltxq->stopped = false; 327 ltxq->txq.vif = vif; 328 ltxq->txq.tid = tid; 329 ltxq->txq.sta = sta; 330 TAILQ_ELEM_INIT(ltxq, txq_entry); 331 skb_queue_head_init(<xq->skbq); 332 sta->txq[tid] = <xq->txq; 333 } 334 335 /* Deflink information. */ 336 for (band = 0; band < NUM_NL80211_BANDS; band++) { 337 struct ieee80211_supported_band *supband; 338 339 supband = hw->wiphy->bands[band]; 340 if (supband == NULL) 341 continue; 342 343 for (i = 0; i < supband->n_bitrates; i++) { 344 345 IMPROVE("Further supband->bitrates[i]* checks?"); 346 /* or should we get them from the ni? */ 347 sta->deflink.supp_rates[band] |= BIT(i); 348 } 349 } 350 351 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 352 sta->deflink.bandwidth = IEEE80211_STA_RX_BW_20; 353 sta->deflink.rx_nss = 0; 354 355 ht_rx_nss = 0; 356 #if defined(LKPI_80211_HT) 357 lkpi_sta_sync_ht_from_ni(sta, ni, &ht_rx_nss); 358 #endif 359 vht_rx_nss = 0; 360 #if defined(LKPI_80211_VHT) 361 lkpi_sta_sync_vht_from_ni(sta, ni, &vht_rx_nss); 362 #endif 363 364 sta->deflink.rx_nss = MAX(ht_rx_nss, sta->deflink.rx_nss); 365 sta->deflink.rx_nss = MAX(vht_rx_nss, sta->deflink.rx_nss); 366 IMPROVE("he, ... smps_mode, .."); 367 368 /* Link configuration. */ 369 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 370 sta->link[0] = &sta->deflink; 371 for (i = 1; i < nitems(sta->link); i++) { 372 IMPROVE("more links; only link[0] = deflink currently."); 373 } 374 375 /* Deferred TX path. */ 376 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 377 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 378 mbufq_init(&lsta->txq, IFQ_MAXLEN); 379 380 return (lsta); 381 382 cleanup: 383 for (; tid >= 0; tid--) 384 free(sta->txq[tid], M_LKPI80211); 385 free(lsta, M_LKPI80211); 386 return (NULL); 387 } 388 389 static enum nl80211_band 390 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 391 { 392 393 if (IEEE80211_IS_CHAN_2GHZ(c)) 394 return (NL80211_BAND_2GHZ); 395 else if (IEEE80211_IS_CHAN_5GHZ(c)) 396 return (NL80211_BAND_5GHZ); 397 #ifdef __notyet__ 398 else if () 399 return (NL80211_BAND_6GHZ); 400 else if () 401 return (NL80211_BAND_60GHZ); 402 else if (IEEE80211_IS_CHAN_GSM(c)) 403 return (NL80211_BAND_XXX); 404 #endif 405 else 406 panic("%s: unsupported band. c %p flags %#x\n", 407 __func__, c, c->ic_flags); 408 } 409 410 static uint32_t 411 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 412 { 413 414 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 415 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 416 switch (band) { 417 case NL80211_BAND_2GHZ: 418 return (IEEE80211_CHAN_2GHZ); 419 break; 420 case NL80211_BAND_5GHZ: 421 return (IEEE80211_CHAN_5GHZ); 422 break; 423 case NL80211_BAND_60GHZ: 424 break; 425 case NL80211_BAND_6GHZ: 426 break; 427 default: 428 panic("%s: unsupported band %u\n", __func__, band); 429 break; 430 } 431 432 IMPROVE(); 433 return (0x00); 434 } 435 436 #if 0 437 static enum ieee80211_ac_numbers 438 lkpi_ac_net_to_l80211(int ac) 439 { 440 441 switch (ac) { 442 case WME_AC_VO: 443 return (IEEE80211_AC_VO); 444 case WME_AC_VI: 445 return (IEEE80211_AC_VI); 446 case WME_AC_BE: 447 return (IEEE80211_AC_BE); 448 case WME_AC_BK: 449 return (IEEE80211_AC_BK); 450 default: 451 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 452 return (IEEE80211_AC_BE); 453 } 454 } 455 #endif 456 457 static enum nl80211_iftype 458 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 459 { 460 461 switch (opmode) { 462 case IEEE80211_M_IBSS: 463 return (NL80211_IFTYPE_ADHOC); 464 break; 465 case IEEE80211_M_STA: 466 return (NL80211_IFTYPE_STATION); 467 break; 468 case IEEE80211_M_WDS: 469 return (NL80211_IFTYPE_WDS); 470 break; 471 case IEEE80211_M_HOSTAP: 472 return (NL80211_IFTYPE_AP); 473 break; 474 case IEEE80211_M_MONITOR: 475 return (NL80211_IFTYPE_MONITOR); 476 break; 477 case IEEE80211_M_MBSS: 478 return (NL80211_IFTYPE_MESH_POINT); 479 break; 480 case IEEE80211_M_AHDEMO: 481 /* FALLTHROUGH */ 482 default: 483 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 484 /* FALLTHROUGH */ 485 } 486 return (NL80211_IFTYPE_UNSPECIFIED); 487 } 488 489 #ifdef LKPI_80211_HW_CRYPTO 490 static uint32_t 491 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 492 { 493 494 switch (wlan_cipher_suite) { 495 case WLAN_CIPHER_SUITE_WEP40: 496 return (IEEE80211_CRYPTO_WEP); 497 case WLAN_CIPHER_SUITE_TKIP: 498 return (IEEE80211_CRYPTO_TKIP); 499 case WLAN_CIPHER_SUITE_CCMP: 500 return (IEEE80211_CIPHER_AES_CCM); 501 case WLAN_CIPHER_SUITE_WEP104: 502 return (IEEE80211_CRYPTO_WEP); 503 case WLAN_CIPHER_SUITE_AES_CMAC: 504 case WLAN_CIPHER_SUITE_GCMP: 505 case WLAN_CIPHER_SUITE_GCMP_256: 506 case WLAN_CIPHER_SUITE_CCMP_256: 507 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 508 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 509 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 510 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 511 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 512 break; 513 default: 514 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 515 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 516 } 517 518 return (0); 519 } 520 521 static uint32_t 522 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 523 { 524 525 switch (cipher) { 526 case IEEE80211_CIPHER_TKIP: 527 return (WLAN_CIPHER_SUITE_TKIP); 528 case IEEE80211_CIPHER_AES_CCM: 529 return (WLAN_CIPHER_SUITE_CCMP); 530 case IEEE80211_CIPHER_WEP: 531 if (keylen < 8) 532 return (WLAN_CIPHER_SUITE_WEP40); 533 else 534 return (WLAN_CIPHER_SUITE_WEP104); 535 break; 536 case IEEE80211_CIPHER_AES_OCB: 537 case IEEE80211_CIPHER_TKIPMIC: 538 case IEEE80211_CIPHER_CKIP: 539 case IEEE80211_CIPHER_NONE: 540 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 541 break; 542 default: 543 printf("%s: unknown cipher %#010x\n", __func__, cipher); 544 }; 545 return (0); 546 } 547 #endif 548 549 #ifdef __notyet__ 550 static enum ieee80211_sta_state 551 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 552 { 553 554 /* 555 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 556 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 557 */ 558 switch (state) { 559 case IEEE80211_S_INIT: 560 return (IEEE80211_STA_NOTEXIST); 561 case IEEE80211_S_SCAN: 562 return (IEEE80211_STA_NONE); 563 case IEEE80211_S_AUTH: 564 return (IEEE80211_STA_AUTH); 565 case IEEE80211_S_ASSOC: 566 return (IEEE80211_STA_ASSOC); 567 case IEEE80211_S_RUN: 568 return (IEEE80211_STA_AUTHORIZED); 569 case IEEE80211_S_CAC: 570 case IEEE80211_S_CSA: 571 case IEEE80211_S_SLEEP: 572 default: 573 UNIMPLEMENTED; 574 }; 575 576 return (IEEE80211_STA_NOTEXIST); 577 } 578 #endif 579 580 static struct linuxkpi_ieee80211_channel * 581 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 582 struct ieee80211_channel *c) 583 { 584 struct ieee80211_hw *hw; 585 struct linuxkpi_ieee80211_channel *channels; 586 enum nl80211_band band; 587 int i, nchans; 588 589 hw = LHW_TO_HW(lhw); 590 band = lkpi_net80211_chan_to_nl80211_band(c); 591 if (hw->wiphy->bands[band] == NULL) 592 return (NULL); 593 594 nchans = hw->wiphy->bands[band]->n_channels; 595 if (nchans <= 0) 596 return (NULL); 597 598 channels = hw->wiphy->bands[band]->channels; 599 for (i = 0; i < nchans; i++) { 600 if (channels[i].hw_value == c->ic_ieee) 601 return (&channels[i]); 602 } 603 604 return (NULL); 605 } 606 607 static struct linuxkpi_ieee80211_channel * 608 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 609 { 610 struct linuxkpi_ieee80211_channel *chan; 611 struct ieee80211_channel *c; 612 struct lkpi_hw *lhw; 613 614 chan = NULL; 615 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 616 c = ni->ni_chan; 617 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 618 c = ic->ic_bsschan; 619 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 620 c = ic->ic_curchan; 621 else 622 c = NULL; 623 624 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 625 lhw = ic->ic_softc; 626 chan = lkpi_find_lkpi80211_chan(lhw, c); 627 } 628 629 return (chan); 630 } 631 632 struct linuxkpi_ieee80211_channel * 633 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 634 { 635 enum nl80211_band band; 636 637 for (band = 0; band < NUM_NL80211_BANDS; band++) { 638 struct ieee80211_supported_band *supband; 639 struct linuxkpi_ieee80211_channel *channels; 640 int i; 641 642 supband = wiphy->bands[band]; 643 if (supband == NULL || supband->n_channels == 0) 644 continue; 645 646 channels = supband->channels; 647 for (i = 0; i < supband->n_channels; i++) { 648 if (channels[i].center_freq == freq) 649 return (&channels[i]); 650 } 651 } 652 653 return (NULL); 654 } 655 656 #ifdef LKPI_80211_HW_CRYPTO 657 static int 658 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 659 enum set_key_cmd cmd) 660 { 661 struct ieee80211com *ic; 662 struct lkpi_hw *lhw; 663 struct ieee80211_hw *hw; 664 struct lkpi_vif *lvif; 665 struct ieee80211_vif *vif; 666 struct ieee80211_sta *sta; 667 struct ieee80211_node *ni; 668 struct ieee80211_key_conf *kc; 669 int error; 670 671 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 672 673 ic = vap->iv_ic; 674 lhw = ic->ic_softc; 675 hw = LHW_TO_HW(lhw); 676 lvif = VAP_TO_LVIF(vap); 677 vif = LVIF_TO_VIF(lvif); 678 679 memset(&kc, 0, sizeof(kc)); 680 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 681 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 682 k->wk_cipher->ic_cipher, k->wk_keylen); 683 kc->keyidx = k->wk_keyix; 684 #if 0 685 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 686 #endif 687 atomic64_set(&kc->tx_pn, k->wk_keytsc); 688 kc->keylen = k->wk_keylen; 689 memcpy(kc->key, k->wk_key, k->wk_keylen); 690 691 switch (kc->cipher) { 692 case WLAN_CIPHER_SUITE_CCMP: 693 kc->iv_len = k->wk_cipher->ic_header; 694 kc->icv_len = k->wk_cipher->ic_trailer; 695 break; 696 case WLAN_CIPHER_SUITE_TKIP: 697 default: 698 IMPROVE(); 699 return (0); 700 }; 701 702 ni = vap->iv_bss; 703 sta = ieee80211_find_sta(vif, ni->ni_bssid); 704 if (sta != NULL) { 705 struct lkpi_sta *lsta; 706 707 lsta = STA_TO_LSTA(sta); 708 lsta->kc = kc; 709 } 710 711 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 712 if (error != 0) { 713 /* XXX-BZ leaking kc currently */ 714 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 715 return (0); 716 } else { 717 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 718 "flags %#10x\n", __func__, 719 kc->keyidx, kc->hw_key_idx, kc->flags); 720 return (1); 721 } 722 } 723 724 static int 725 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 726 { 727 728 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 729 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 730 } 731 static int 732 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 733 { 734 735 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 736 } 737 #endif 738 739 static u_int 740 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 741 { 742 struct netdev_hw_addr_list *mc_list; 743 struct netdev_hw_addr *addr; 744 745 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 746 __func__, arg, sdl, cnt)); 747 748 mc_list = arg; 749 /* If it is on the list already skip it. */ 750 netdev_hw_addr_list_for_each(addr, mc_list) { 751 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 752 return (0); 753 } 754 755 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 756 if (addr == NULL) 757 return (0); 758 759 INIT_LIST_HEAD(&addr->addr_list); 760 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 761 /* XXX this should be a netdev function? */ 762 list_add(&addr->addr_list, &mc_list->addr_list); 763 mc_list->count++; 764 765 #ifdef LINUXKPI_DEBUG_80211 766 if (linuxkpi_debug_80211 & D80211_TRACE) 767 printf("%s:%d: mc_list count %d: added %6D\n", 768 __func__, __LINE__, mc_list->count, addr->addr, ":"); 769 #endif 770 771 return (1); 772 } 773 774 static void 775 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 776 { 777 struct lkpi_hw *lhw; 778 struct ieee80211_hw *hw; 779 struct netdev_hw_addr_list mc_list; 780 struct list_head *le, *next; 781 struct netdev_hw_addr *addr; 782 struct ieee80211vap *vap; 783 u64 mc; 784 unsigned int changed_flags, total_flags; 785 786 lhw = ic->ic_softc; 787 788 if (lhw->ops->prepare_multicast == NULL || 789 lhw->ops->configure_filter == NULL) 790 return; 791 792 if (!lhw->update_mc && !force) 793 return; 794 795 changed_flags = total_flags = 0; 796 mc_list.count = 0; 797 INIT_LIST_HEAD(&mc_list.addr_list); 798 if (ic->ic_allmulti == 0) { 799 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 800 if_foreach_llmaddr(vap->iv_ifp, 801 lkpi_ic_update_mcast_copy, &mc_list); 802 } else { 803 changed_flags |= FIF_ALLMULTI; 804 } 805 806 hw = LHW_TO_HW(lhw); 807 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 808 /* 809 * XXX-BZ make sure to get this sorted what is a change, 810 * what gets all set; what was already set? 811 */ 812 total_flags = changed_flags; 813 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 814 815 #ifdef LINUXKPI_DEBUG_80211 816 if (linuxkpi_debug_80211 & D80211_TRACE) 817 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 818 __func__, changed_flags, mc_list.count, total_flags); 819 #endif 820 821 if (mc_list.count != 0) { 822 list_for_each_safe(le, next, &mc_list.addr_list) { 823 addr = list_entry(le, struct netdev_hw_addr, addr_list); 824 free(addr, M_LKPI80211); 825 mc_list.count--; 826 } 827 } 828 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 829 __func__, &mc_list, mc_list.count)); 830 } 831 832 static enum ieee80211_bss_changed 833 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 834 struct ieee80211vap *vap, const char *_f, int _l) 835 { 836 enum ieee80211_bss_changed bss_changed; 837 838 bss_changed = 0; 839 840 #ifdef LINUXKPI_DEBUG_80211 841 if (linuxkpi_debug_80211 & D80211_TRACE) 842 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 843 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 844 "sync_device_ts %u bss_changed %#08x\n", 845 __func__, __LINE__, _f, _l, 846 vif->cfg.assoc, vif->cfg.aid, 847 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 848 vif->bss_conf.sync_dtim_count, 849 (uintmax_t)vif->bss_conf.sync_tsf, 850 vif->bss_conf.sync_device_ts, 851 bss_changed); 852 #endif 853 854 if (vif->bss_conf.beacon_int != ni->ni_intval) { 855 vif->bss_conf.beacon_int = ni->ni_intval; 856 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 857 if (vif->bss_conf.beacon_int < 16) 858 vif->bss_conf.beacon_int = 16; 859 bss_changed |= BSS_CHANGED_BEACON_INT; 860 } 861 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 862 vap->iv_dtim_period > 0) { 863 vif->bss_conf.dtim_period = vap->iv_dtim_period; 864 bss_changed |= BSS_CHANGED_BEACON_INFO; 865 } 866 867 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 868 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 869 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 870 871 #ifdef LINUXKPI_DEBUG_80211 872 if (linuxkpi_debug_80211 & D80211_TRACE) 873 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 874 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 875 "sync_device_ts %u bss_changed %#08x\n", 876 __func__, __LINE__, _f, _l, 877 vif->cfg.assoc, vif->cfg.aid, 878 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 879 vif->bss_conf.sync_dtim_count, 880 (uintmax_t)vif->bss_conf.sync_tsf, 881 vif->bss_conf.sync_device_ts, 882 bss_changed); 883 #endif 884 885 return (bss_changed); 886 } 887 888 static void 889 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 890 { 891 struct ieee80211_hw *hw; 892 int error; 893 bool cancel; 894 895 LKPI_80211_LHW_SCAN_LOCK(lhw); 896 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 897 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 898 if (!cancel) 899 return; 900 901 hw = LHW_TO_HW(lhw); 902 903 IEEE80211_UNLOCK(lhw->ic); 904 LKPI_80211_LHW_LOCK(lhw); 905 /* Need to cancel the scan. */ 906 lkpi_80211_mo_cancel_hw_scan(hw, vif); 907 LKPI_80211_LHW_UNLOCK(lhw); 908 909 /* Need to make sure we see ieee80211_scan_completed. */ 910 LKPI_80211_LHW_SCAN_LOCK(lhw); 911 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 912 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 913 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 914 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 915 916 IEEE80211_LOCK(lhw->ic); 917 918 if (cancel) 919 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 920 __func__, error, lhw, vif); 921 } 922 923 static void 924 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 925 { 926 struct lkpi_hw *lhw; 927 int error; 928 bool old; 929 930 old = hw->conf.flags & IEEE80211_CONF_IDLE; 931 if (old == new) 932 return; 933 934 hw->conf.flags ^= IEEE80211_CONF_IDLE; 935 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 936 if (error != 0 && error != EOPNOTSUPP) { 937 lhw = HW_TO_LHW(hw); 938 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 939 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 940 } 941 } 942 943 static void 944 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 945 struct lkpi_hw *lhw) 946 { 947 sta->aid = 0; 948 if (vif->cfg.assoc) { 949 struct ieee80211_hw *hw; 950 enum ieee80211_bss_changed changed; 951 952 lhw->update_mc = true; 953 lkpi_update_mcast_filter(lhw->ic, true); 954 955 changed = 0; 956 vif->cfg.assoc = false; 957 vif->cfg.aid = 0; 958 changed |= BSS_CHANGED_ASSOC; 959 /* 960 * This will remove the sta from firmware for iwlwifi. 961 * So confusing that they use state and flags and ... ^%$%#%$^. 962 */ 963 IMPROVE(); 964 hw = LHW_TO_HW(lhw); 965 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 966 changed); 967 968 lkpi_hw_conf_idle(hw, true); 969 } 970 } 971 972 static void 973 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 974 bool dequeue_seen, bool no_emptyq) 975 { 976 struct lkpi_txq *ltxq; 977 int tid; 978 979 /* Wake up all queues to know they are allocated in the driver. */ 980 for (tid = 0; tid < nitems(sta->txq); tid++) { 981 982 if (tid == IEEE80211_NUM_TIDS) { 983 IMPROVE("station specific?"); 984 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 985 continue; 986 } else if (tid >= hw->queues) 987 continue; 988 989 if (sta->txq[tid] == NULL) 990 continue; 991 992 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 993 if (dequeue_seen && !ltxq->seen_dequeue) 994 continue; 995 996 if (no_emptyq && skb_queue_empty(<xq->skbq)) 997 continue; 998 999 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 1000 } 1001 } 1002 1003 /* -------------------------------------------------------------------------- */ 1004 1005 static int 1006 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1007 { 1008 1009 return (0); 1010 } 1011 1012 /* lkpi_iv_newstate() handles the stop scan case generally. */ 1013 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 1014 1015 static int 1016 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1017 { 1018 struct linuxkpi_ieee80211_channel *chan; 1019 struct lkpi_chanctx *lchanctx; 1020 struct ieee80211_chanctx_conf *conf; 1021 struct lkpi_hw *lhw; 1022 struct ieee80211_hw *hw; 1023 struct lkpi_vif *lvif; 1024 struct ieee80211_vif *vif; 1025 struct ieee80211_node *ni; 1026 struct lkpi_sta *lsta; 1027 enum ieee80211_bss_changed bss_changed; 1028 struct ieee80211_prep_tx_info prep_tx_info; 1029 uint32_t changed; 1030 int error; 1031 1032 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 1033 if (chan == NULL) { 1034 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 1035 return (ESRCH); 1036 } 1037 1038 lhw = vap->iv_ic->ic_softc; 1039 hw = LHW_TO_HW(lhw); 1040 lvif = VAP_TO_LVIF(vap); 1041 vif = LVIF_TO_VIF(lvif); 1042 1043 ni = ieee80211_ref_node(vap->iv_bss); 1044 1045 IEEE80211_UNLOCK(vap->iv_ic); 1046 LKPI_80211_LHW_LOCK(lhw); 1047 1048 /* Add chanctx (or if exists, change it). */ 1049 if (vif->chanctx_conf != NULL) { 1050 conf = vif->chanctx_conf; 1051 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1052 IMPROVE("diff changes for changed, working on live copy, rcu"); 1053 } else { 1054 /* Keep separate alloc as in Linux this is rcu managed? */ 1055 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 1056 M_LKPI80211, M_WAITOK | M_ZERO); 1057 conf = &lchanctx->conf; 1058 } 1059 1060 conf->rx_chains_dynamic = 1; 1061 conf->rx_chains_static = 1; 1062 conf->radar_enabled = 1063 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 1064 conf->def.chan = chan; 1065 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 1066 conf->def.center_freq1 = chan->center_freq; 1067 conf->def.center_freq2 = 0; 1068 IMPROVE("Check vht_cap from band not just chan?"); 1069 #ifdef LKPI_80211_HT 1070 if (IEEE80211_IS_CHAN_HT(ni->ni_chan)) { 1071 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) { 1072 conf->def.width = NL80211_CHAN_WIDTH_40; 1073 } else 1074 conf->def.width = NL80211_CHAN_WIDTH_20; 1075 } 1076 #endif 1077 #ifdef LKPI_80211_VHT 1078 if (IEEE80211_IS_CHAN_VHT(ni->ni_chan)) { 1079 #ifdef __notyet__ 1080 if (IEEE80211_IS_CHAN_VHT80P80(ni->ni_chan)) { 1081 conf->def.width = NL80211_CHAN_WIDTH_80P80; 1082 conf->def.center_freq2 = 0; /* XXX */ 1083 } else 1084 #endif 1085 if (IEEE80211_IS_CHAN_VHT160(ni->ni_chan)) 1086 conf->def.width = NL80211_CHAN_WIDTH_160; 1087 else if (IEEE80211_IS_CHAN_VHT80(ni->ni_chan)) 1088 conf->def.width = NL80211_CHAN_WIDTH_80; 1089 } 1090 #endif 1091 /* Responder ... */ 1092 conf->min_def.chan = chan; 1093 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 1094 conf->min_def.center_freq1 = chan->center_freq; 1095 conf->min_def.center_freq2 = 0; 1096 IMPROVE("currently 20_NOHT min_def only"); 1097 1098 /* Set bss info (bss_info_changed). */ 1099 bss_changed = 0; 1100 vif->bss_conf.bssid = ni->ni_bssid; 1101 bss_changed |= BSS_CHANGED_BSSID; 1102 vif->bss_conf.txpower = ni->ni_txpower; 1103 bss_changed |= BSS_CHANGED_TXPOWER; 1104 vif->cfg.idle = false; 1105 bss_changed |= BSS_CHANGED_IDLE; 1106 1107 /* vif->bss_conf.basic_rates ? Where exactly? */ 1108 1109 /* Should almost assert it is this. */ 1110 vif->cfg.assoc = false; 1111 vif->cfg.aid = 0; 1112 1113 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1114 1115 error = 0; 1116 if (vif->chanctx_conf != NULL) { 1117 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 1118 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 1119 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 1120 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 1121 lkpi_80211_mo_change_chanctx(hw, conf, changed); 1122 } else { 1123 error = lkpi_80211_mo_add_chanctx(hw, conf); 1124 if (error == 0 || error == EOPNOTSUPP) { 1125 vif->bss_conf.chandef.chan = conf->def.chan; 1126 vif->bss_conf.chandef.width = conf->def.width; 1127 vif->bss_conf.chandef.center_freq1 = 1128 conf->def.center_freq1; 1129 #ifdef LKPI_80211_HT 1130 if (vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_40) { 1131 /* Note: it is 10 not 20. */ 1132 if (IEEE80211_IS_CHAN_HT40U(ni->ni_chan)) 1133 vif->bss_conf.chandef.center_freq1 += 10; 1134 else if (IEEE80211_IS_CHAN_HT40D(ni->ni_chan)) 1135 vif->bss_conf.chandef.center_freq1 -= 10; 1136 } 1137 #endif 1138 vif->bss_conf.chandef.center_freq2 = 1139 conf->def.center_freq2; 1140 } else { 1141 ic_printf(vap->iv_ic, "%s:%d: mo_add_chanctx " 1142 "failed: %d\n", __func__, __LINE__, error); 1143 goto out; 1144 } 1145 1146 vif->bss_conf.chanctx_conf = conf; 1147 1148 /* Assign vif chanctx. */ 1149 if (error == 0) 1150 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1151 &vif->bss_conf, conf); 1152 if (error == EOPNOTSUPP) 1153 error = 0; 1154 if (error != 0) { 1155 ic_printf(vap->iv_ic, "%s:%d: mo_assign_vif_chanctx " 1156 "failed: %d\n", __func__, __LINE__, error); 1157 lkpi_80211_mo_remove_chanctx(hw, conf); 1158 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1159 free(lchanctx, M_LKPI80211); 1160 goto out; 1161 } 1162 } 1163 IMPROVE("update radiotap chan fields too"); 1164 1165 /* RATES */ 1166 IMPROVE("bss info: not all needs to come now and rates are missing"); 1167 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1168 1169 /* 1170 * This is a bandaid for now. If we went through (*iv_update_bss)() 1171 * and then removed the lsta we end up here without a lsta and have 1172 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1173 * would normally do. 1174 * XXX-BZ I do not like this but currently we have no good way of 1175 * intercepting the bss swap and state changes and packets going out 1176 * workflow so live with this. It is a compat layer after all. 1177 */ 1178 if (ni->ni_drv_data == NULL) { 1179 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1180 if (lsta == NULL) { 1181 error = ENOMEM; 1182 ic_printf(vap->iv_ic, "%s:%d: lkpi_lsta_alloc " 1183 "failed: %d\n", __func__, __LINE__, error); 1184 goto out; 1185 } 1186 lsta->ni = ieee80211_ref_node(ni); 1187 } else { 1188 lsta = ni->ni_drv_data; 1189 } 1190 1191 /* Insert the [l]sta into the list of known stations. */ 1192 LKPI_80211_LVIF_LOCK(lvif); 1193 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1194 LKPI_80211_LVIF_UNLOCK(lvif); 1195 1196 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1197 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1198 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1199 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1200 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1201 if (error != 0) { 1202 IMPROVE("do we need to undo the chan ctx?"); 1203 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1204 "failed: %d\n", __func__, __LINE__, error); 1205 goto out; 1206 } 1207 #if 0 1208 lsta->added_to_drv = true; /* mo manages. */ 1209 #endif 1210 1211 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1212 1213 /* 1214 * Wakeup all queues now that sta is there so we have as much time to 1215 * possibly prepare the queue in the driver to be ready for the 1st 1216 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1217 * is no guarantee or way to check. 1218 * XXX-BZ and by now we know that this does not work on all drivers 1219 * for all queues. 1220 */ 1221 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1222 1223 /* Start mgd_prepare_tx. */ 1224 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1225 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1226 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1227 lsta->in_mgd = true; 1228 1229 /* 1230 * What is going to happen next: 1231 * - <twiddle> .. we should end up in "auth_to_assoc" 1232 * - event_callback 1233 * - update sta_state (NONE to AUTH) 1234 * - mgd_complete_tx 1235 * (ideally we'd do that on a callback for something else ...) 1236 */ 1237 1238 out: 1239 LKPI_80211_LHW_UNLOCK(lhw); 1240 IEEE80211_LOCK(vap->iv_ic); 1241 if (ni != NULL) 1242 ieee80211_free_node(ni); 1243 return (error); 1244 } 1245 1246 static int 1247 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1248 { 1249 struct lkpi_hw *lhw; 1250 struct ieee80211_hw *hw; 1251 struct lkpi_vif *lvif; 1252 struct ieee80211_vif *vif; 1253 struct ieee80211_node *ni; 1254 struct lkpi_sta *lsta; 1255 struct ieee80211_sta *sta; 1256 struct ieee80211_prep_tx_info prep_tx_info; 1257 int error; 1258 1259 lhw = vap->iv_ic->ic_softc; 1260 hw = LHW_TO_HW(lhw); 1261 lvif = VAP_TO_LVIF(vap); 1262 vif = LVIF_TO_VIF(lvif); 1263 1264 /* Keep ni around. */ 1265 ni = ieee80211_ref_node(vap->iv_bss); 1266 lsta = ni->ni_drv_data; 1267 sta = LSTA_TO_STA(lsta); 1268 1269 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1270 1271 IEEE80211_UNLOCK(vap->iv_ic); 1272 LKPI_80211_LHW_LOCK(lhw); 1273 1274 /* flush, drop. */ 1275 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1276 1277 /* Wake tx queues to get packet(s) out. */ 1278 lkpi_wake_tx_queues(hw, sta, true, true); 1279 1280 /* flush, no drop */ 1281 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1282 1283 /* End mgd_complete_tx. */ 1284 if (lsta->in_mgd) { 1285 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1286 prep_tx_info.success = false; 1287 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1288 lsta->in_mgd = false; 1289 } 1290 1291 /* sync_rx_queues */ 1292 lkpi_80211_mo_sync_rx_queues(hw); 1293 1294 /* sta_pre_rcu_remove */ 1295 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1296 1297 /* Take the station down. */ 1298 1299 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1300 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1301 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1302 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1303 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1304 if (error != 0) { 1305 IMPROVE("do we need to undo the chan ctx?"); 1306 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1307 "failed: %d\n", __func__, __LINE__, error); 1308 goto out; 1309 } 1310 #if 0 1311 lsta->added_to_drv = false; /* mo manages. */ 1312 #endif 1313 1314 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1315 1316 lkpi_lsta_remove(lsta, lvif); 1317 1318 /* conf_tx */ 1319 1320 /* Take the chan ctx down. */ 1321 if (vif->chanctx_conf != NULL) { 1322 struct lkpi_chanctx *lchanctx; 1323 struct ieee80211_chanctx_conf *conf; 1324 1325 conf = vif->chanctx_conf; 1326 /* Remove vif context. */ 1327 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1328 /* NB: vif->chanctx_conf is NULL now. */ 1329 1330 /* Remove chan ctx. */ 1331 lkpi_80211_mo_remove_chanctx(hw, conf); 1332 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1333 free(lchanctx, M_LKPI80211); 1334 } 1335 1336 out: 1337 LKPI_80211_LHW_UNLOCK(lhw); 1338 IEEE80211_LOCK(vap->iv_ic); 1339 if (ni != NULL) 1340 ieee80211_free_node(ni); 1341 return (error); 1342 } 1343 1344 static int 1345 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1346 { 1347 int error; 1348 1349 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1350 if (error == 0) 1351 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1352 return (error); 1353 } 1354 1355 static int 1356 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1357 { 1358 struct lkpi_hw *lhw; 1359 struct ieee80211_hw *hw; 1360 struct lkpi_vif *lvif; 1361 struct ieee80211_vif *vif; 1362 struct ieee80211_node *ni; 1363 struct lkpi_sta *lsta; 1364 struct ieee80211_prep_tx_info prep_tx_info; 1365 int error; 1366 1367 lhw = vap->iv_ic->ic_softc; 1368 hw = LHW_TO_HW(lhw); 1369 lvif = VAP_TO_LVIF(vap); 1370 vif = LVIF_TO_VIF(lvif); 1371 1372 IEEE80211_UNLOCK(vap->iv_ic); 1373 LKPI_80211_LHW_LOCK(lhw); 1374 ni = NULL; 1375 1376 /* Finish auth. */ 1377 IMPROVE("event callback"); 1378 1379 /* Update sta_state (NONE to AUTH). */ 1380 ni = ieee80211_ref_node(vap->iv_bss); 1381 lsta = ni->ni_drv_data; 1382 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1383 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1384 "NONE: %#x\n", __func__, lsta, lsta->state)); 1385 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1386 if (error != 0) { 1387 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1388 "failed: %d\n", __func__, __LINE__, error); 1389 goto out; 1390 } 1391 1392 /* End mgd_complete_tx. */ 1393 if (lsta->in_mgd) { 1394 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1395 prep_tx_info.success = true; 1396 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1397 lsta->in_mgd = false; 1398 } 1399 1400 /* Now start assoc. */ 1401 1402 /* Start mgd_prepare_tx. */ 1403 if (!lsta->in_mgd) { 1404 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1405 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1406 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1407 lsta->in_mgd = true; 1408 } 1409 1410 /* Wake tx queue to get packet out. */ 1411 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1412 1413 /* 1414 * <twiddle> .. we end up in "assoc_to_run" 1415 * - update sta_state (AUTH to ASSOC) 1416 * - conf_tx [all] 1417 * - bss_info_changed (assoc, aid, ssid, ..) 1418 * - change_chanctx (if needed) 1419 * - event_callback 1420 * - mgd_complete_tx 1421 */ 1422 1423 out: 1424 LKPI_80211_LHW_UNLOCK(lhw); 1425 IEEE80211_LOCK(vap->iv_ic); 1426 if (ni != NULL) 1427 ieee80211_free_node(ni); 1428 return (error); 1429 } 1430 1431 /* auth_to_auth, assoc_to_assoc. */ 1432 static int 1433 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1434 { 1435 struct lkpi_hw *lhw; 1436 struct ieee80211_hw *hw; 1437 struct lkpi_vif *lvif; 1438 struct ieee80211_vif *vif; 1439 struct ieee80211_node *ni; 1440 struct lkpi_sta *lsta; 1441 struct ieee80211_prep_tx_info prep_tx_info; 1442 1443 lhw = vap->iv_ic->ic_softc; 1444 hw = LHW_TO_HW(lhw); 1445 lvif = VAP_TO_LVIF(vap); 1446 vif = LVIF_TO_VIF(lvif); 1447 1448 ni = ieee80211_ref_node(vap->iv_bss); 1449 1450 IEEE80211_UNLOCK(vap->iv_ic); 1451 LKPI_80211_LHW_LOCK(lhw); 1452 lsta = ni->ni_drv_data; 1453 1454 IMPROVE("event callback?"); 1455 1456 /* End mgd_complete_tx. */ 1457 if (lsta->in_mgd) { 1458 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1459 prep_tx_info.success = false; 1460 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1461 lsta->in_mgd = false; 1462 } 1463 1464 /* Now start assoc. */ 1465 1466 /* Start mgd_prepare_tx. */ 1467 if (!lsta->in_mgd) { 1468 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1469 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1470 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1471 lsta->in_mgd = true; 1472 } 1473 1474 LKPI_80211_LHW_UNLOCK(lhw); 1475 IEEE80211_LOCK(vap->iv_ic); 1476 if (ni != NULL) 1477 ieee80211_free_node(ni); 1478 1479 return (0); 1480 } 1481 1482 static int 1483 _lkpi_sta_assoc_to_down(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 ieee80211_node *ni; 1490 struct lkpi_sta *lsta; 1491 struct ieee80211_sta *sta; 1492 struct ieee80211_prep_tx_info prep_tx_info; 1493 enum ieee80211_bss_changed bss_changed; 1494 int error; 1495 1496 lhw = vap->iv_ic->ic_softc; 1497 hw = LHW_TO_HW(lhw); 1498 lvif = VAP_TO_LVIF(vap); 1499 vif = LVIF_TO_VIF(lvif); 1500 1501 /* Keep ni around. */ 1502 ni = ieee80211_ref_node(vap->iv_bss); 1503 lsta = ni->ni_drv_data; 1504 sta = LSTA_TO_STA(lsta); 1505 1506 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1507 1508 IEEE80211_UNLOCK(vap->iv_ic); 1509 LKPI_80211_LHW_LOCK(lhw); 1510 1511 /* flush, drop. */ 1512 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1513 1514 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1515 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1516 !lsta->in_mgd) { 1517 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1518 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1519 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1520 lsta->in_mgd = true; 1521 } 1522 1523 LKPI_80211_LHW_UNLOCK(lhw); 1524 IEEE80211_LOCK(vap->iv_ic); 1525 1526 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1527 error = lvif->iv_newstate(vap, nstate, arg); 1528 if (error != 0) { 1529 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1530 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1531 goto outni; 1532 } 1533 1534 IEEE80211_UNLOCK(vap->iv_ic); 1535 LKPI_80211_LHW_LOCK(lhw); 1536 1537 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1538 1539 /* Wake tx queues to get packet(s) out. */ 1540 lkpi_wake_tx_queues(hw, sta, true, true); 1541 1542 /* flush, no drop */ 1543 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1544 1545 /* End mgd_complete_tx. */ 1546 if (lsta->in_mgd) { 1547 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1548 prep_tx_info.success = false; 1549 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1550 lsta->in_mgd = false; 1551 } 1552 1553 /* sync_rx_queues */ 1554 lkpi_80211_mo_sync_rx_queues(hw); 1555 1556 /* sta_pre_rcu_remove */ 1557 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1558 1559 /* Take the station down. */ 1560 1561 /* Update sta and change state (from AUTH) to NONE. */ 1562 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1563 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1564 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1565 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1566 if (error != 0) { 1567 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1568 "failed: %d\n", __func__, __LINE__, error); 1569 goto out; 1570 } 1571 1572 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1573 1574 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1575 /* 1576 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 1577 * as otherwise drivers (iwlwifi at least) will silently not remove 1578 * the sta from the firmware and when we will add a new one trigger 1579 * a fw assert. 1580 */ 1581 lkpi_disassoc(sta, vif, lhw); 1582 1583 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1584 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1585 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1586 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1587 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1588 if (error != 0) { 1589 IMPROVE("do we need to undo the chan ctx?"); 1590 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1591 "failed: %d\n", __func__, __LINE__, error); 1592 goto out; 1593 } 1594 1595 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1596 1597 IMPROVE("Any bss_info changes to announce?"); 1598 bss_changed = 0; 1599 vif->bss_conf.qos = 0; 1600 bss_changed |= BSS_CHANGED_QOS; 1601 vif->cfg.ssid_len = 0; 1602 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1603 bss_changed |= BSS_CHANGED_BSSID; 1604 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1605 1606 lkpi_lsta_remove(lsta, lvif); 1607 1608 /* conf_tx */ 1609 1610 /* Take the chan ctx down. */ 1611 if (vif->chanctx_conf != NULL) { 1612 struct lkpi_chanctx *lchanctx; 1613 struct ieee80211_chanctx_conf *conf; 1614 1615 conf = vif->chanctx_conf; 1616 /* Remove vif context. */ 1617 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1618 /* NB: vif->chanctx_conf is NULL now. */ 1619 1620 /* Remove chan ctx. */ 1621 lkpi_80211_mo_remove_chanctx(hw, conf); 1622 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1623 free(lchanctx, M_LKPI80211); 1624 } 1625 1626 error = EALREADY; 1627 out: 1628 LKPI_80211_LHW_UNLOCK(lhw); 1629 IEEE80211_LOCK(vap->iv_ic); 1630 outni: 1631 if (ni != NULL) 1632 ieee80211_free_node(ni); 1633 return (error); 1634 } 1635 1636 static int 1637 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1638 { 1639 int error; 1640 1641 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1642 if (error != 0 && error != EALREADY) 1643 return (error); 1644 1645 /* At this point iv_bss is long a new node! */ 1646 1647 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1648 return (error); 1649 } 1650 1651 static int 1652 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1653 { 1654 int error; 1655 1656 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1657 return (error); 1658 } 1659 1660 static int 1661 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1662 { 1663 int error; 1664 1665 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1666 return (error); 1667 } 1668 1669 static int 1670 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1671 { 1672 struct lkpi_hw *lhw; 1673 struct ieee80211_hw *hw; 1674 struct lkpi_vif *lvif; 1675 struct ieee80211_vif *vif; 1676 struct ieee80211_node *ni; 1677 struct lkpi_sta *lsta; 1678 struct ieee80211_sta *sta; 1679 struct ieee80211_prep_tx_info prep_tx_info; 1680 enum ieee80211_bss_changed bss_changed; 1681 int error; 1682 1683 lhw = vap->iv_ic->ic_softc; 1684 hw = LHW_TO_HW(lhw); 1685 lvif = VAP_TO_LVIF(vap); 1686 vif = LVIF_TO_VIF(lvif); 1687 1688 IEEE80211_UNLOCK(vap->iv_ic); 1689 LKPI_80211_LHW_LOCK(lhw); 1690 ni = NULL; 1691 1692 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1693 "and to lesser extend ieee80211_notify_node_join"); 1694 1695 /* Finish assoc. */ 1696 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1697 ni = ieee80211_ref_node(vap->iv_bss); 1698 lsta = ni->ni_drv_data; 1699 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1700 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1701 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1702 sta = LSTA_TO_STA(lsta); 1703 sta->aid = IEEE80211_NODE_AID(ni); 1704 #ifdef LKPI_80211_WME 1705 if (vap->iv_flags & IEEE80211_F_WME) 1706 sta->wme = true; 1707 #endif 1708 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1709 if (error != 0) { 1710 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1711 "failed: %d\n", __func__, __LINE__, error); 1712 goto out; 1713 } 1714 1715 IMPROVE("wme / conf_tx [all]"); 1716 1717 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1718 bss_changed = 0; 1719 #ifdef LKPI_80211_WME 1720 bss_changed |= lkpi_wme_update(lhw, vap, true); 1721 #endif 1722 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 1723 vif->cfg.assoc = true; 1724 vif->cfg.aid = IEEE80211_NODE_AID(ni); 1725 bss_changed |= BSS_CHANGED_ASSOC; 1726 } 1727 /* We set SSID but this is not BSSID! */ 1728 vif->cfg.ssid_len = ni->ni_esslen; 1729 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 1730 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1731 vif->bss_conf.use_short_preamble) { 1732 vif->bss_conf.use_short_preamble ^= 1; 1733 /* bss_changed |= BSS_CHANGED_??? */ 1734 } 1735 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1736 vif->bss_conf.use_short_slot) { 1737 vif->bss_conf.use_short_slot ^= 1; 1738 /* bss_changed |= BSS_CHANGED_??? */ 1739 } 1740 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1741 vif->bss_conf.qos) { 1742 vif->bss_conf.qos ^= 1; 1743 bss_changed |= BSS_CHANGED_QOS; 1744 } 1745 1746 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1747 1748 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1749 1750 /* - change_chanctx (if needed) 1751 * - event_callback 1752 */ 1753 1754 /* End mgd_complete_tx. */ 1755 if (lsta->in_mgd) { 1756 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1757 prep_tx_info.success = true; 1758 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1759 lsta->in_mgd = false; 1760 } 1761 1762 lkpi_hw_conf_idle(hw, false); 1763 1764 /* 1765 * And then: 1766 * - (more packets)? 1767 * - set_key 1768 * - set_default_unicast_key 1769 * - set_key (?) 1770 * - ipv6_addr_change (?) 1771 */ 1772 /* Prepare_multicast && configure_filter. */ 1773 lhw->update_mc = true; 1774 lkpi_update_mcast_filter(vap->iv_ic, true); 1775 1776 if (!ieee80211_node_is_authorized(ni)) { 1777 IMPROVE("net80211 does not consider node authorized"); 1778 } 1779 1780 #if defined(LKPI_80211_HT) 1781 IMPROVE("Is this the right spot, has net80211 done all updates already?"); 1782 lkpi_sta_sync_ht_from_ni(sta, ni, NULL); 1783 #endif 1784 1785 /* Update sta_state (ASSOC to AUTHORIZED). */ 1786 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1787 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1788 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1789 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1790 if (error != 0) { 1791 IMPROVE("undo some changes?"); 1792 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 1793 "failed: %d\n", __func__, __LINE__, error); 1794 goto out; 1795 } 1796 1797 /* - drv_config (?) 1798 * - bss_info_changed 1799 * - set_rekey_data (?) 1800 * 1801 * And now we should be passing packets. 1802 */ 1803 IMPROVE("Need that bssid setting, and the keys"); 1804 1805 bss_changed = 0; 1806 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1807 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1808 1809 out: 1810 LKPI_80211_LHW_UNLOCK(lhw); 1811 IEEE80211_LOCK(vap->iv_ic); 1812 if (ni != NULL) 1813 ieee80211_free_node(ni); 1814 return (error); 1815 } 1816 1817 static int 1818 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1819 { 1820 int error; 1821 1822 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1823 if (error == 0) 1824 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1825 return (error); 1826 } 1827 1828 static int 1829 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1830 { 1831 struct lkpi_hw *lhw; 1832 struct ieee80211_hw *hw; 1833 struct lkpi_vif *lvif; 1834 struct ieee80211_vif *vif; 1835 struct ieee80211_node *ni; 1836 struct lkpi_sta *lsta; 1837 struct ieee80211_sta *sta; 1838 struct ieee80211_prep_tx_info prep_tx_info; 1839 #if 0 1840 enum ieee80211_bss_changed bss_changed; 1841 #endif 1842 int error; 1843 1844 lhw = vap->iv_ic->ic_softc; 1845 hw = LHW_TO_HW(lhw); 1846 lvif = VAP_TO_LVIF(vap); 1847 vif = LVIF_TO_VIF(lvif); 1848 1849 /* Keep ni around. */ 1850 ni = ieee80211_ref_node(vap->iv_bss); 1851 lsta = ni->ni_drv_data; 1852 sta = LSTA_TO_STA(lsta); 1853 1854 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1855 1856 IEEE80211_UNLOCK(vap->iv_ic); 1857 LKPI_80211_LHW_LOCK(lhw); 1858 1859 /* flush, drop. */ 1860 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1861 1862 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1863 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1864 !lsta->in_mgd) { 1865 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1866 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1867 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1868 lsta->in_mgd = true; 1869 } 1870 1871 LKPI_80211_LHW_UNLOCK(lhw); 1872 IEEE80211_LOCK(vap->iv_ic); 1873 1874 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1875 error = lvif->iv_newstate(vap, nstate, arg); 1876 if (error != 0) { 1877 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1878 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1879 goto outni; 1880 } 1881 1882 IEEE80211_UNLOCK(vap->iv_ic); 1883 LKPI_80211_LHW_LOCK(lhw); 1884 1885 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1886 1887 /* Wake tx queues to get packet(s) out. */ 1888 lkpi_wake_tx_queues(hw, sta, true, true); 1889 1890 /* flush, no drop */ 1891 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1892 1893 /* End mgd_complete_tx. */ 1894 if (lsta->in_mgd) { 1895 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1896 prep_tx_info.success = false; 1897 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1898 lsta->in_mgd = false; 1899 } 1900 1901 #if 0 1902 /* sync_rx_queues */ 1903 lkpi_80211_mo_sync_rx_queues(hw); 1904 1905 /* sta_pre_rcu_remove */ 1906 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1907 #endif 1908 1909 /* Take the station down. */ 1910 1911 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1912 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1913 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1914 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1915 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1916 if (error != 0) { 1917 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1918 "failed: %d\n", __func__, __LINE__, error); 1919 goto out; 1920 } 1921 1922 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1923 1924 /* Update sta_state (ASSOC to AUTH). */ 1925 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1926 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1927 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1928 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1929 if (error != 0) { 1930 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1931 "failed: %d\n", __func__, __LINE__, error); 1932 goto out; 1933 } 1934 1935 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1936 1937 #if 0 1938 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1939 lkpi_disassoc(sta, vif, lhw); 1940 #endif 1941 1942 error = EALREADY; 1943 out: 1944 LKPI_80211_LHW_UNLOCK(lhw); 1945 IEEE80211_LOCK(vap->iv_ic); 1946 outni: 1947 if (ni != NULL) 1948 ieee80211_free_node(ni); 1949 return (error); 1950 } 1951 1952 static int 1953 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1954 { 1955 struct lkpi_hw *lhw; 1956 struct ieee80211_hw *hw; 1957 struct lkpi_vif *lvif; 1958 struct ieee80211_vif *vif; 1959 struct ieee80211_node *ni; 1960 struct lkpi_sta *lsta; 1961 struct ieee80211_sta *sta; 1962 struct ieee80211_prep_tx_info prep_tx_info; 1963 enum ieee80211_bss_changed bss_changed; 1964 int error; 1965 1966 lhw = vap->iv_ic->ic_softc; 1967 hw = LHW_TO_HW(lhw); 1968 lvif = VAP_TO_LVIF(vap); 1969 vif = LVIF_TO_VIF(lvif); 1970 1971 /* Keep ni around. */ 1972 ni = ieee80211_ref_node(vap->iv_bss); 1973 lsta = ni->ni_drv_data; 1974 sta = LSTA_TO_STA(lsta); 1975 1976 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1977 1978 IEEE80211_UNLOCK(vap->iv_ic); 1979 LKPI_80211_LHW_LOCK(lhw); 1980 1981 /* flush, drop. */ 1982 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1983 1984 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1985 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1986 !lsta->in_mgd) { 1987 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1988 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1989 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1990 lsta->in_mgd = true; 1991 } 1992 1993 LKPI_80211_LHW_UNLOCK(lhw); 1994 IEEE80211_LOCK(vap->iv_ic); 1995 1996 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1997 error = lvif->iv_newstate(vap, nstate, arg); 1998 if (error != 0) { 1999 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 2000 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 2001 goto outni; 2002 } 2003 2004 IEEE80211_UNLOCK(vap->iv_ic); 2005 LKPI_80211_LHW_LOCK(lhw); 2006 2007 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2008 2009 /* Wake tx queues to get packet(s) out. */ 2010 lkpi_wake_tx_queues(hw, sta, true, true); 2011 2012 /* flush, no drop */ 2013 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 2014 2015 /* End mgd_complete_tx. */ 2016 if (lsta->in_mgd) { 2017 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 2018 prep_tx_info.success = false; 2019 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 2020 lsta->in_mgd = false; 2021 } 2022 2023 /* sync_rx_queues */ 2024 lkpi_80211_mo_sync_rx_queues(hw); 2025 2026 /* sta_pre_rcu_remove */ 2027 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 2028 2029 /* Take the station down. */ 2030 2031 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 2032 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2033 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 2034 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 2035 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 2036 if (error != 0) { 2037 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 2038 "failed: %d\n", __func__, __LINE__, error); 2039 goto out; 2040 } 2041 2042 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2043 2044 /* Update sta_state (ASSOC to AUTH). */ 2045 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2046 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 2047 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 2048 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 2049 if (error != 0) { 2050 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 2051 "failed: %d\n", __func__, __LINE__, error); 2052 goto out; 2053 } 2054 2055 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2056 2057 /* Update sta and change state (from AUTH) to NONE. */ 2058 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2059 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 2060 "AUTH: %#x\n", __func__, lsta, lsta->state)); 2061 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 2062 if (error != 0) { 2063 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 2064 "failed: %d\n", __func__, __LINE__, error); 2065 goto out; 2066 } 2067 2068 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 2069 2070 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 2071 /* 2072 * One would expect this to happen when going off AUTHORIZED. 2073 * See comment there; removes the sta from fw. 2074 */ 2075 lkpi_disassoc(sta, vif, lhw); 2076 2077 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 2078 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 2079 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 2080 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 2081 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 2082 if (error != 0) { 2083 IMPROVE("do we need to undo the chan ctx?"); 2084 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 2085 "failed: %d\n", __func__, __LINE__, error); 2086 goto out; 2087 } 2088 2089 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 2090 2091 IMPROVE("Any bss_info changes to announce?"); 2092 bss_changed = 0; 2093 vif->bss_conf.qos = 0; 2094 bss_changed |= BSS_CHANGED_QOS; 2095 vif->cfg.ssid_len = 0; 2096 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 2097 bss_changed |= BSS_CHANGED_BSSID; 2098 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 2099 2100 lkpi_lsta_remove(lsta, lvif); 2101 2102 /* conf_tx */ 2103 2104 /* Take the chan ctx down. */ 2105 if (vif->chanctx_conf != NULL) { 2106 struct lkpi_chanctx *lchanctx; 2107 struct ieee80211_chanctx_conf *conf; 2108 2109 conf = vif->chanctx_conf; 2110 /* Remove vif context. */ 2111 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 2112 /* NB: vif->chanctx_conf is NULL now. */ 2113 2114 /* Remove chan ctx. */ 2115 lkpi_80211_mo_remove_chanctx(hw, conf); 2116 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 2117 free(lchanctx, M_LKPI80211); 2118 } 2119 2120 error = EALREADY; 2121 out: 2122 LKPI_80211_LHW_UNLOCK(lhw); 2123 IEEE80211_LOCK(vap->iv_ic); 2124 outni: 2125 if (ni != NULL) 2126 ieee80211_free_node(ni); 2127 return (error); 2128 } 2129 2130 static int 2131 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2132 { 2133 2134 return (lkpi_sta_run_to_init(vap, nstate, arg)); 2135 } 2136 2137 static int 2138 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2139 { 2140 int error; 2141 2142 error = lkpi_sta_run_to_init(vap, nstate, arg); 2143 if (error != 0 && error != EALREADY) 2144 return (error); 2145 2146 /* At this point iv_bss is long a new node! */ 2147 2148 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 2149 return (error); 2150 } 2151 2152 /* -------------------------------------------------------------------------- */ 2153 2154 /* 2155 * The matches the documented state changes in net80211::sta_newstate(). 2156 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 2157 * there are "invalid" (so there is a room for failure here). 2158 */ 2159 struct fsm_state { 2160 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 2161 enum ieee80211_state ostate; 2162 enum ieee80211_state nstate; 2163 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 2164 } sta_state_fsm[] = { 2165 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 2166 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 2167 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 2168 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 2169 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 2170 2171 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2172 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2173 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 2174 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 2175 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 2176 2177 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2178 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2179 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2180 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2181 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2182 2183 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2184 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2185 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2186 2187 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2188 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2189 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2190 2191 /* Dummy at the end without handler. */ 2192 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2193 }; 2194 2195 static int 2196 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2197 { 2198 struct ieee80211com *ic; 2199 struct lkpi_hw *lhw; 2200 struct lkpi_vif *lvif; 2201 struct ieee80211_vif *vif; 2202 struct fsm_state *s; 2203 enum ieee80211_state ostate; 2204 int error; 2205 2206 ic = vap->iv_ic; 2207 IEEE80211_LOCK_ASSERT(ic); 2208 ostate = vap->iv_state; 2209 2210 #ifdef LINUXKPI_DEBUG_80211 2211 if (linuxkpi_debug_80211 & D80211_TRACE) 2212 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2213 __func__, __LINE__, vap, nstate, arg); 2214 #endif 2215 2216 if (vap->iv_opmode == IEEE80211_M_STA) { 2217 2218 lhw = ic->ic_softc; 2219 lvif = VAP_TO_LVIF(vap); 2220 vif = LVIF_TO_VIF(lvif); 2221 2222 /* No need to replicate this in most state handlers. */ 2223 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2224 lkpi_stop_hw_scan(lhw, vif); 2225 2226 s = sta_state_fsm; 2227 2228 } else { 2229 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2230 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2231 return (ENOSYS); 2232 } 2233 2234 error = 0; 2235 for (; s->handler != NULL; s++) { 2236 if (ostate == s->ostate && nstate == s->nstate) { 2237 #ifdef LINUXKPI_DEBUG_80211 2238 if (linuxkpi_debug_80211 & D80211_TRACE) 2239 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2240 " %d (%s): arg %d.\n", __func__, 2241 ostate, ieee80211_state_name[ostate], 2242 nstate, ieee80211_state_name[nstate], arg); 2243 #endif 2244 error = s->handler(vap, nstate, arg); 2245 break; 2246 } 2247 } 2248 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2249 2250 if (s->handler == NULL) { 2251 IMPROVE("turn this into a KASSERT\n"); 2252 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2253 "%d (%s) -> %d (%s)\n", __func__, 2254 ostate, ieee80211_state_name[ostate], 2255 nstate, ieee80211_state_name[nstate]); 2256 return (ENOSYS); 2257 } 2258 2259 if (error == EALREADY) { 2260 #ifdef LINUXKPI_DEBUG_80211 2261 if (linuxkpi_debug_80211 & D80211_TRACE) 2262 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2263 "%d (%s): iv_newstate already handled: %d.\n", 2264 __func__, ostate, ieee80211_state_name[ostate], 2265 nstate, ieee80211_state_name[nstate], error); 2266 #endif 2267 return (0); 2268 } 2269 2270 if (error != 0) { 2271 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2272 "%d (%s) -> %d (%s)\n", __func__, error, 2273 ostate, ieee80211_state_name[ostate], 2274 nstate, ieee80211_state_name[nstate]); 2275 return (error); 2276 } 2277 2278 #ifdef LINUXKPI_DEBUG_80211 2279 if (linuxkpi_debug_80211 & D80211_TRACE) 2280 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2281 "calling net80211 parent\n", 2282 __func__, __LINE__, vap, nstate, arg); 2283 #endif 2284 2285 return (lvif->iv_newstate(vap, nstate, arg)); 2286 } 2287 2288 /* -------------------------------------------------------------------------- */ 2289 2290 /* 2291 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2292 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2293 * new node without us knowing and thus our ni/lsta are out of sync. 2294 */ 2295 static struct ieee80211_node * 2296 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2297 { 2298 struct lkpi_vif *lvif; 2299 struct ieee80211_node *obss; 2300 struct lkpi_sta *lsta; 2301 struct ieee80211_sta *sta; 2302 2303 obss = vap->iv_bss; 2304 2305 #ifdef LINUXKPI_DEBUG_80211 2306 if (linuxkpi_debug_80211 & D80211_TRACE) 2307 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2308 "ni %p ni_drv_data %p\n", __func__, 2309 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2310 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2311 #endif 2312 2313 /* Nothing to copy from. Just return. */ 2314 if (obss == NULL || obss->ni_drv_data == NULL) 2315 goto out; 2316 2317 /* Nothing to copy to. Just return. */ 2318 IMPROVE("clearing the obss might still be needed?"); 2319 if (ni == NULL) 2320 goto out; 2321 2322 /* Nothing changed? panic? */ 2323 if (obss == ni) 2324 goto out; 2325 2326 lsta = obss->ni_drv_data; 2327 obss->ni_drv_data = ni->ni_drv_data; 2328 ni->ni_drv_data = lsta; 2329 if (lsta != NULL) { 2330 lsta->ni = ni; 2331 sta = LSTA_TO_STA(lsta); 2332 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2333 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2334 } 2335 lsta = obss->ni_drv_data; 2336 if (lsta != NULL) { 2337 lsta->ni = obss; 2338 sta = LSTA_TO_STA(lsta); 2339 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2340 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2341 } 2342 2343 out: 2344 lvif = VAP_TO_LVIF(vap); 2345 return (lvif->iv_update_bss(vap, ni)); 2346 } 2347 2348 #ifdef LKPI_80211_WME 2349 static int 2350 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2351 { 2352 struct ieee80211com *ic; 2353 struct ieee80211_hw *hw; 2354 struct lkpi_vif *lvif; 2355 struct ieee80211_vif *vif; 2356 struct chanAccParams chp; 2357 struct wmeParams wmeparr[WME_NUM_AC]; 2358 struct ieee80211_tx_queue_params txqp; 2359 enum ieee80211_bss_changed changed; 2360 int error; 2361 uint16_t ac; 2362 2363 IMPROVE(); 2364 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2365 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2366 2367 if (vap == NULL) 2368 return (0); 2369 2370 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2371 return (0); 2372 2373 if (lhw->ops->conf_tx == NULL) 2374 return (0); 2375 2376 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2377 lhw->update_wme = true; 2378 return (0); 2379 } 2380 lhw->update_wme = false; 2381 2382 ic = lhw->ic; 2383 ieee80211_wme_ic_getparams(ic, &chp); 2384 IEEE80211_LOCK(ic); 2385 for (ac = 0; ac < WME_NUM_AC; ac++) 2386 wmeparr[ac] = chp.cap_wmeParams[ac]; 2387 IEEE80211_UNLOCK(ic); 2388 2389 hw = LHW_TO_HW(lhw); 2390 lvif = VAP_TO_LVIF(vap); 2391 vif = LVIF_TO_VIF(lvif); 2392 2393 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2394 LKPI_80211_LHW_LOCK(lhw); 2395 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2396 struct wmeParams *wmep; 2397 2398 wmep = &wmeparr[ac]; 2399 bzero(&txqp, sizeof(txqp)); 2400 txqp.cw_min = wmep->wmep_logcwmin; 2401 txqp.cw_max = wmep->wmep_logcwmax; 2402 txqp.txop = wmep->wmep_txopLimit; 2403 txqp.aifs = wmep->wmep_aifsn; 2404 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2405 if (error != 0) 2406 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2407 __func__, ac, error); 2408 } 2409 LKPI_80211_LHW_UNLOCK(lhw); 2410 changed = BSS_CHANGED_QOS; 2411 if (!planned) 2412 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2413 2414 return (changed); 2415 } 2416 #endif 2417 2418 static int 2419 lkpi_ic_wme_update(struct ieee80211com *ic) 2420 { 2421 #ifdef LKPI_80211_WME 2422 struct ieee80211vap *vap; 2423 struct lkpi_hw *lhw; 2424 2425 IMPROVE("Use the per-VAP callback in net80211."); 2426 vap = TAILQ_FIRST(&ic->ic_vaps); 2427 if (vap == NULL) 2428 return (0); 2429 2430 lhw = ic->ic_softc; 2431 2432 lkpi_wme_update(lhw, vap, false); 2433 #endif 2434 return (0); /* unused */ 2435 } 2436 2437 static struct ieee80211vap * 2438 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2439 int unit, enum ieee80211_opmode opmode, int flags, 2440 const uint8_t bssid[IEEE80211_ADDR_LEN], 2441 const uint8_t mac[IEEE80211_ADDR_LEN]) 2442 { 2443 struct lkpi_hw *lhw; 2444 struct ieee80211_hw *hw; 2445 struct lkpi_vif *lvif; 2446 struct ieee80211vap *vap; 2447 struct ieee80211_vif *vif; 2448 struct ieee80211_tx_queue_params txqp; 2449 enum ieee80211_bss_changed changed; 2450 size_t len; 2451 int error, i; 2452 uint16_t ac; 2453 2454 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2455 return (NULL); 2456 2457 lhw = ic->ic_softc; 2458 hw = LHW_TO_HW(lhw); 2459 2460 len = sizeof(*lvif); 2461 len += hw->vif_data_size; /* vif->drv_priv */ 2462 2463 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2464 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2465 TAILQ_INIT(&lvif->lsta_head); 2466 vap = LVIF_TO_VAP(lvif); 2467 2468 vif = LVIF_TO_VIF(lvif); 2469 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2470 vif->p2p = false; 2471 vif->probe_req_reg = false; 2472 vif->type = lkpi_opmode_to_vif_type(opmode); 2473 lvif->wdev.iftype = vif->type; 2474 /* Need to fill in other fields as well. */ 2475 IMPROVE(); 2476 2477 /* XXX-BZ hardcoded for now! */ 2478 #if 1 2479 vif->chanctx_conf = NULL; 2480 vif->bss_conf.vif = vif; 2481 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2482 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2483 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2484 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2485 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2486 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2487 vif->bss_conf.qos = false; 2488 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2489 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2490 vif->cfg.aid = 0; 2491 vif->cfg.assoc = false; 2492 vif->cfg.idle = true; 2493 vif->cfg.ps = false; 2494 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2495 /* 2496 * We need to initialize it to something as the bss_info_changed call 2497 * will try to copy from it in iwlwifi and NULL is a panic. 2498 * We will set the proper one in scan_to_auth() before being assoc. 2499 */ 2500 vif->bss_conf.bssid = ieee80211broadcastaddr; 2501 #endif 2502 #if 0 2503 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2504 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2505 vif->bss_conf.beacon_int = ic->ic_bintval; 2506 /* iwlwifi bug. */ 2507 if (vif->bss_conf.beacon_int < 16) 2508 vif->bss_conf.beacon_int = 16; 2509 #endif 2510 2511 /* Link Config */ 2512 vif->link_conf[0] = &vif->bss_conf; 2513 for (i = 0; i < nitems(vif->link_conf); i++) { 2514 IMPROVE("more than 1 link one day"); 2515 } 2516 2517 /* Setup queue defaults; driver may override in (*add_interface). */ 2518 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2519 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2520 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2521 else if (hw->queues >= IEEE80211_NUM_ACS) 2522 vif->hw_queue[i] = i; 2523 else 2524 vif->hw_queue[i] = 0; 2525 2526 /* Initialize the queue to running. Stopped? */ 2527 lvif->hw_queue_stopped[i] = false; 2528 } 2529 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2530 2531 IMPROVE(); 2532 2533 error = lkpi_80211_mo_start(hw); 2534 if (error != 0) { 2535 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2536 mtx_destroy(&lvif->mtx); 2537 free(lvif, M_80211_VAP); 2538 return (NULL); 2539 } 2540 2541 error = lkpi_80211_mo_add_interface(hw, vif); 2542 if (error != 0) { 2543 IMPROVE(); /* XXX-BZ mo_stop()? */ 2544 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2545 mtx_destroy(&lvif->mtx); 2546 free(lvif, M_80211_VAP); 2547 return (NULL); 2548 } 2549 2550 LKPI_80211_LHW_LVIF_LOCK(lhw); 2551 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2552 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2553 2554 /* Set bss_info. */ 2555 changed = 0; 2556 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2557 2558 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2559 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2560 LKPI_80211_LHW_LOCK(lhw); 2561 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2562 2563 bzero(&txqp, sizeof(txqp)); 2564 txqp.cw_min = 15; 2565 txqp.cw_max = 1023; 2566 txqp.txop = 0; 2567 txqp.aifs = 2; 2568 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2569 if (error != 0) 2570 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2571 __func__, ac, error); 2572 } 2573 LKPI_80211_LHW_UNLOCK(lhw); 2574 changed = BSS_CHANGED_QOS; 2575 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2576 2577 /* Force MC init. */ 2578 lkpi_update_mcast_filter(ic, true); 2579 2580 IMPROVE(); 2581 2582 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2583 2584 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2585 lvif->iv_newstate = vap->iv_newstate; 2586 vap->iv_newstate = lkpi_iv_newstate; 2587 lvif->iv_update_bss = vap->iv_update_bss; 2588 vap->iv_update_bss = lkpi_iv_update_bss; 2589 2590 /* Key management. */ 2591 if (lhw->ops->set_key != NULL) { 2592 #ifdef LKPI_80211_HW_CRYPTO 2593 vap->iv_key_set = lkpi_iv_key_set; 2594 vap->iv_key_delete = lkpi_iv_key_delete; 2595 #endif 2596 } 2597 2598 #ifdef LKPI_80211_HT 2599 /* Stay with the iv_ampdu_rxmax,limit / iv_ampdu_density defaults until later. */ 2600 #endif 2601 2602 ieee80211_ratectl_init(vap); 2603 2604 /* Complete setup. */ 2605 ieee80211_vap_attach(vap, ieee80211_media_change, 2606 ieee80211_media_status, mac); 2607 2608 if (hw->max_listen_interval == 0) 2609 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2610 hw->conf.listen_interval = hw->max_listen_interval; 2611 ic->ic_set_channel(ic); 2612 2613 /* XXX-BZ do we need to be able to update these? */ 2614 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2615 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2616 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2617 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2618 /* any others? */ 2619 IMPROVE(); 2620 2621 return (vap); 2622 } 2623 2624 void 2625 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2626 { 2627 2628 wiphy_unregister(hw->wiphy); 2629 linuxkpi_ieee80211_ifdetach(hw); 2630 2631 IMPROVE(); 2632 } 2633 2634 void 2635 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2636 { 2637 2638 TODO(); 2639 } 2640 2641 static void 2642 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2643 { 2644 struct ieee80211com *ic; 2645 struct lkpi_hw *lhw; 2646 struct ieee80211_hw *hw; 2647 struct lkpi_vif *lvif; 2648 struct ieee80211_vif *vif; 2649 2650 lvif = VAP_TO_LVIF(vap); 2651 vif = LVIF_TO_VIF(lvif); 2652 ic = vap->iv_ic; 2653 lhw = ic->ic_softc; 2654 hw = LHW_TO_HW(lhw); 2655 2656 LKPI_80211_LHW_LVIF_LOCK(lhw); 2657 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2658 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2659 2660 ieee80211_ratectl_deinit(vap); 2661 ieee80211_vap_detach(vap); 2662 2663 IMPROVE("clear up other bits in this state"); 2664 2665 lkpi_80211_mo_remove_interface(hw, vif); 2666 2667 /* Single VAP, so we can do this here. */ 2668 lkpi_80211_mo_stop(hw); 2669 2670 mtx_destroy(&lvif->mtx); 2671 free(lvif, M_80211_VAP); 2672 } 2673 2674 static void 2675 lkpi_ic_update_mcast(struct ieee80211com *ic) 2676 { 2677 2678 lkpi_update_mcast_filter(ic, false); 2679 TRACEOK(); 2680 } 2681 2682 static void 2683 lkpi_ic_update_promisc(struct ieee80211com *ic) 2684 { 2685 2686 UNIMPLEMENTED; 2687 } 2688 2689 static void 2690 lkpi_ic_update_chw(struct ieee80211com *ic) 2691 { 2692 2693 UNIMPLEMENTED; 2694 } 2695 2696 /* Start / stop device. */ 2697 static void 2698 lkpi_ic_parent(struct ieee80211com *ic) 2699 { 2700 struct lkpi_hw *lhw; 2701 #ifdef HW_START_STOP 2702 struct ieee80211_hw *hw; 2703 int error; 2704 #endif 2705 bool start_all; 2706 2707 IMPROVE(); 2708 2709 lhw = ic->ic_softc; 2710 #ifdef HW_START_STOP 2711 hw = LHW_TO_HW(lhw); 2712 #endif 2713 start_all = false; 2714 2715 /* IEEE80211_UNLOCK(ic); */ 2716 LKPI_80211_LHW_LOCK(lhw); 2717 if (ic->ic_nrunning > 0) { 2718 #ifdef HW_START_STOP 2719 error = lkpi_80211_mo_start(hw); 2720 if (error == 0) 2721 #endif 2722 start_all = true; 2723 } else { 2724 #ifdef HW_START_STOP 2725 lkpi_80211_mo_stop(hw); 2726 #endif 2727 } 2728 LKPI_80211_LHW_UNLOCK(lhw); 2729 /* IEEE80211_LOCK(ic); */ 2730 2731 if (start_all) 2732 ieee80211_start_all(ic); 2733 } 2734 2735 bool 2736 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2737 size_t ie_ids_len) 2738 { 2739 int i; 2740 2741 for (i = 0; i < ie_ids_len; i++) { 2742 if (ie == *ie_ids) 2743 return (true); 2744 } 2745 2746 return (false); 2747 } 2748 2749 /* Return true if skipped; false if error. */ 2750 bool 2751 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2752 { 2753 size_t x; 2754 uint8_t l; 2755 2756 x = *xp; 2757 2758 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2759 __func__, x, ies_len, ies)); 2760 l = ies[x + 1]; 2761 x += 2 + l; 2762 2763 if (x > ies_len) 2764 return (false); 2765 2766 *xp = x; 2767 return (true); 2768 } 2769 2770 static uint8_t * 2771 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2772 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2773 { 2774 struct ieee80211_supported_band *supband; 2775 struct linuxkpi_ieee80211_channel *channels; 2776 struct ieee80211com *ic; 2777 const struct ieee80211_channel *chan; 2778 const struct ieee80211_rateset *rs; 2779 uint8_t *pb; 2780 int band, i; 2781 2782 ic = vap->iv_ic; 2783 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2784 if ((band_mask & (1 << band)) == 0) 2785 continue; 2786 2787 supband = hw->wiphy->bands[band]; 2788 /* 2789 * This should not happen; 2790 * band_mask is a bitmask of valid bands to scan on. 2791 */ 2792 if (supband == NULL || supband->n_channels == 0) 2793 continue; 2794 2795 /* Find a first channel to get the mode and rates from. */ 2796 channels = supband->channels; 2797 chan = NULL; 2798 for (i = 0; i < supband->n_channels; i++) { 2799 2800 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2801 continue; 2802 2803 chan = ieee80211_find_channel(ic, 2804 channels[i].center_freq, 0); 2805 if (chan != NULL) 2806 break; 2807 } 2808 2809 /* This really should not happen. */ 2810 if (chan == NULL) 2811 continue; 2812 2813 pb = p; 2814 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 2815 p = ieee80211_add_rates(p, rs); 2816 p = ieee80211_add_xrates(p, rs); 2817 2818 #if defined(LKPI_80211_HT) 2819 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 2820 struct ieee80211_channel *c; 2821 2822 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2823 vap->iv_flags_ht); 2824 p = ieee80211_add_htcap_ch(p, vap, c); 2825 } 2826 #endif 2827 #if defined(LKPI_80211_VHT) 2828 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 2829 struct ieee80211_channel *c; 2830 2831 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2832 vap->iv_flags_ht); 2833 c = ieee80211_vht_adjust_channel(ic, c, 2834 vap->iv_vht_flags); 2835 p = ieee80211_add_vhtcap_ch(p, vap, c); 2836 } 2837 #endif 2838 2839 scan_ies->ies[band] = pb; 2840 scan_ies->len[band] = p - pb; 2841 } 2842 2843 /* Add common_ies */ 2844 pb = p; 2845 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2846 vap->iv_wpa_ie != NULL) { 2847 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2848 p += 2 + vap->iv_wpa_ie[1]; 2849 } 2850 if (vap->iv_appie_probereq != NULL) { 2851 memcpy(p, vap->iv_appie_probereq->ie_data, 2852 vap->iv_appie_probereq->ie_len); 2853 p += vap->iv_appie_probereq->ie_len; 2854 } 2855 scan_ies->common_ies = pb; 2856 scan_ies->common_ie_len = p - pb; 2857 2858 return (p); 2859 } 2860 2861 static void 2862 lkpi_ic_scan_start(struct ieee80211com *ic) 2863 { 2864 struct lkpi_hw *lhw; 2865 struct ieee80211_hw *hw; 2866 struct lkpi_vif *lvif; 2867 struct ieee80211_vif *vif; 2868 struct ieee80211_scan_state *ss; 2869 struct ieee80211vap *vap; 2870 int error; 2871 bool is_hw_scan; 2872 2873 lhw = ic->ic_softc; 2874 LKPI_80211_LHW_SCAN_LOCK(lhw); 2875 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2876 /* A scan is still running. */ 2877 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2878 return; 2879 } 2880 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2881 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2882 2883 ss = ic->ic_scan; 2884 vap = ss->ss_vap; 2885 if (vap->iv_state != IEEE80211_S_SCAN) { 2886 IMPROVE("We need to be able to scan if not in S_SCAN"); 2887 return; 2888 } 2889 2890 hw = LHW_TO_HW(lhw); 2891 if (!is_hw_scan) { 2892 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2893 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2894 sw_scan: 2895 lvif = VAP_TO_LVIF(vap); 2896 vif = LVIF_TO_VIF(lvif); 2897 2898 if (vap->iv_state == IEEE80211_S_SCAN) 2899 lkpi_hw_conf_idle(hw, false); 2900 2901 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2902 /* net80211::scan_start() handled PS for us. */ 2903 IMPROVE(); 2904 /* XXX Also means it is too late to flush queues? 2905 * need to check iv_sta_ps or overload? */ 2906 /* XXX want to adjust ss end time/ maxdwell? */ 2907 2908 } else { 2909 struct ieee80211_channel *c; 2910 struct ieee80211_scan_request *hw_req; 2911 struct linuxkpi_ieee80211_channel *lc, **cpp; 2912 struct cfg80211_ssid *ssids; 2913 struct cfg80211_scan_6ghz_params *s6gp; 2914 size_t chan_len, nchan, ssids_len, s6ghzlen; 2915 int band, i, ssid_count, common_ie_len; 2916 uint32_t band_mask; 2917 uint8_t *ie, *ieend; 2918 bool running; 2919 2920 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2921 ssids_len = ssid_count * sizeof(*ssids); 2922 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2923 2924 band_mask = 0; 2925 nchan = 0; 2926 for (i = ss->ss_next; i < ss->ss_last; i++) { 2927 nchan++; 2928 band = lkpi_net80211_chan_to_nl80211_band( 2929 ss->ss_chans[ss->ss_next + i]); 2930 band_mask |= (1 << band); 2931 } 2932 2933 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2934 IMPROVE("individual band scans not yet supported, only scanning first band"); 2935 /* In theory net80211 should drive this. */ 2936 /* Probably we need to add local logic for now; 2937 * need to deal with scan_complete 2938 * and cancel_scan and keep local state. 2939 * Also cut the nchan down above. 2940 */ 2941 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 2942 } 2943 2944 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2945 2946 common_ie_len = 0; 2947 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2948 vap->iv_wpa_ie != NULL) 2949 common_ie_len += vap->iv_wpa_ie[1]; 2950 if (vap->iv_appie_probereq != NULL) 2951 common_ie_len += vap->iv_appie_probereq->ie_len; 2952 2953 /* We would love to check this at an earlier stage... */ 2954 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2955 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2956 "wiphy->max_scan_ie_len %d\n", __func__, 2957 common_ie_len, hw->wiphy->max_scan_ie_len); 2958 } 2959 2960 hw_req = malloc(sizeof(*hw_req) + ssids_len + 2961 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2962 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2963 2964 hw_req->req.flags = 0; /* XXX ??? */ 2965 /* hw_req->req.wdev */ 2966 hw_req->req.wiphy = hw->wiphy; 2967 hw_req->req.no_cck = false; /* XXX */ 2968 #if 0 2969 /* This seems to pessimise default scanning behaviour. */ 2970 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2971 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2972 #endif 2973 #ifdef __notyet__ 2974 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2975 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2976 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2977 #endif 2978 eth_broadcast_addr(hw_req->req.bssid); 2979 2980 hw_req->req.n_channels = nchan; 2981 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2982 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2983 for (i = 0; i < nchan; i++) { 2984 *(cpp + i) = 2985 (struct linuxkpi_ieee80211_channel *)(lc + i); 2986 } 2987 for (i = 0; i < nchan; i++) { 2988 c = ss->ss_chans[ss->ss_next + i]; 2989 2990 lc->hw_value = c->ic_ieee; 2991 lc->center_freq = c->ic_freq; /* XXX */ 2992 /* lc->flags */ 2993 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2994 lc->max_power = c->ic_maxpower; 2995 /* lc-> ... */ 2996 lc++; 2997 } 2998 2999 hw_req->req.n_ssids = ssid_count; 3000 if (hw_req->req.n_ssids > 0) { 3001 ssids = (struct cfg80211_ssid *)lc; 3002 hw_req->req.ssids = ssids; 3003 for (i = 0; i < ssid_count; i++) { 3004 ssids->ssid_len = ss->ss_ssid[i].len; 3005 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 3006 ss->ss_ssid[i].len); 3007 ssids++; 3008 } 3009 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 3010 } else { 3011 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 3012 } 3013 3014 /* 6GHz one day. */ 3015 hw_req->req.n_6ghz_params = 0; 3016 hw_req->req.scan_6ghz_params = NULL; 3017 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 3018 /* s6gp->... */ 3019 3020 ie = ieend = (uint8_t *)s6gp; 3021 /* Copy per-band IEs, copy common IEs */ 3022 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 3023 hw_req->req.ie = ie; 3024 hw_req->req.ie_len = ieend - ie; 3025 3026 lvif = VAP_TO_LVIF(vap); 3027 vif = LVIF_TO_VIF(lvif); 3028 3029 LKPI_80211_LHW_SCAN_LOCK(lhw); 3030 /* Re-check under lock. */ 3031 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 3032 if (!running) { 3033 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 3034 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 3035 3036 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 3037 lhw->hw_req = hw_req; 3038 } 3039 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3040 if (running) { 3041 free(hw_req, M_LKPI80211); 3042 return; 3043 } 3044 3045 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 3046 if (error != 0) { 3047 ieee80211_cancel_scan(vap); 3048 3049 /* 3050 * ieee80211_scan_completed must be called in either 3051 * case of error or none. So let the free happen there 3052 * and only there. 3053 * That would be fine in theory but in practice drivers 3054 * behave differently: 3055 * ath10k does not return hw_scan until after scan_complete 3056 * and can then still return an error. 3057 * rtw88 can return 1 or -EBUSY without scan_complete 3058 * iwlwifi can return various errors before scan starts 3059 * ... 3060 * So we cannot rely on that behaviour and have to check 3061 * and balance between both code paths. 3062 */ 3063 LKPI_80211_LHW_SCAN_LOCK(lhw); 3064 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 3065 free(lhw->hw_req, M_LKPI80211); 3066 lhw->hw_req = NULL; 3067 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3068 } 3069 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3070 3071 /* 3072 * XXX-SIGH magic number. 3073 * rtw88 has a magic "return 1" if offloading scan is 3074 * not possible. Fall back to sw scan in that case. 3075 */ 3076 if (error == 1) { 3077 LKPI_80211_LHW_SCAN_LOCK(lhw); 3078 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 3079 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3080 /* 3081 * XXX If we clear this now and later a driver 3082 * thinks it * can do a hw_scan again, we will 3083 * currently not re-enable it? 3084 */ 3085 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 3086 ieee80211_start_scan(vap, 3087 IEEE80211_SCAN_ACTIVE | 3088 IEEE80211_SCAN_NOPICK | 3089 IEEE80211_SCAN_ONCE, 3090 IEEE80211_SCAN_FOREVER, 3091 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 3092 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 3093 vap->iv_des_nssid, vap->iv_des_ssid); 3094 goto sw_scan; 3095 } 3096 3097 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 3098 __func__, error); 3099 } 3100 } 3101 } 3102 3103 static void 3104 lkpi_ic_scan_end(struct ieee80211com *ic) 3105 { 3106 struct lkpi_hw *lhw; 3107 bool is_hw_scan; 3108 3109 lhw = ic->ic_softc; 3110 LKPI_80211_LHW_SCAN_LOCK(lhw); 3111 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 3112 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3113 return; 3114 } 3115 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3116 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3117 3118 if (!is_hw_scan) { 3119 struct ieee80211_scan_state *ss; 3120 struct ieee80211vap *vap; 3121 struct ieee80211_hw *hw; 3122 struct lkpi_vif *lvif; 3123 struct ieee80211_vif *vif; 3124 3125 ss = ic->ic_scan; 3126 vap = ss->ss_vap; 3127 hw = LHW_TO_HW(lhw); 3128 lvif = VAP_TO_LVIF(vap); 3129 vif = LVIF_TO_VIF(lvif); 3130 3131 lkpi_80211_mo_sw_scan_complete(hw, vif); 3132 3133 /* Send PS to stop buffering if n80211 does not for us? */ 3134 3135 if (vap->iv_state == IEEE80211_S_SCAN) 3136 lkpi_hw_conf_idle(hw, true); 3137 } 3138 } 3139 3140 static void 3141 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 3142 unsigned long maxdwell) 3143 { 3144 struct lkpi_hw *lhw; 3145 bool is_hw_scan; 3146 3147 lhw = ss->ss_ic->ic_softc; 3148 LKPI_80211_LHW_SCAN_LOCK(lhw); 3149 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3150 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3151 if (!is_hw_scan) 3152 lhw->ic_scan_curchan(ss, maxdwell); 3153 } 3154 3155 static void 3156 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 3157 { 3158 struct lkpi_hw *lhw; 3159 bool is_hw_scan; 3160 3161 lhw = ss->ss_ic->ic_softc; 3162 LKPI_80211_LHW_SCAN_LOCK(lhw); 3163 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3164 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3165 if (!is_hw_scan) 3166 lhw->ic_scan_mindwell(ss); 3167 } 3168 3169 static void 3170 lkpi_ic_set_channel(struct ieee80211com *ic) 3171 { 3172 struct lkpi_hw *lhw; 3173 struct ieee80211_hw *hw; 3174 struct ieee80211_channel *c; 3175 struct linuxkpi_ieee80211_channel *chan; 3176 int error; 3177 bool hw_scan_running; 3178 3179 lhw = ic->ic_softc; 3180 3181 /* If we do not support (*config)() save us the work. */ 3182 if (lhw->ops->config == NULL) 3183 return; 3184 3185 /* If we have a hw_scan running do not switch channels. */ 3186 LKPI_80211_LHW_SCAN_LOCK(lhw); 3187 hw_scan_running = 3188 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3189 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3190 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3191 if (hw_scan_running) 3192 return; 3193 3194 c = ic->ic_curchan; 3195 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3196 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3197 c, lhw->ops->config); 3198 return; 3199 } 3200 3201 chan = lkpi_find_lkpi80211_chan(lhw, c); 3202 if (chan == NULL) { 3203 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3204 c, chan); 3205 return; 3206 } 3207 3208 /* XXX max power for scanning? */ 3209 IMPROVE(); 3210 3211 hw = LHW_TO_HW(lhw); 3212 cfg80211_chandef_create(&hw->conf.chandef, chan, 3213 #ifdef LKPI_80211_HT 3214 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 3215 #endif 3216 NL80211_CHAN_NO_HT); 3217 3218 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3219 if (error != 0 && error != EOPNOTSUPP) { 3220 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3221 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3222 /* XXX should we unroll to the previous chandef? */ 3223 IMPROVE(); 3224 } else { 3225 /* Update radiotap channels as well. */ 3226 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3227 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3228 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3229 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3230 } 3231 3232 /* Currently PS is hard coded off! Not sure it belongs here. */ 3233 IMPROVE(); 3234 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3235 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3236 hw->conf.flags &= ~IEEE80211_CONF_PS; 3237 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3238 if (error != 0 && error != EOPNOTSUPP) 3239 ic_printf(ic, "ERROR: %s: config %#0x returned " 3240 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3241 error); 3242 } 3243 } 3244 3245 static struct ieee80211_node * 3246 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3247 const uint8_t mac[IEEE80211_ADDR_LEN]) 3248 { 3249 struct ieee80211com *ic; 3250 struct lkpi_hw *lhw; 3251 struct ieee80211_node *ni; 3252 struct ieee80211_hw *hw; 3253 struct lkpi_sta *lsta; 3254 3255 ic = vap->iv_ic; 3256 lhw = ic->ic_softc; 3257 3258 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3259 if (lhw->ic_node_alloc == NULL) 3260 return (NULL); 3261 3262 ni = lhw->ic_node_alloc(vap, mac); 3263 if (ni == NULL) 3264 return (NULL); 3265 3266 hw = LHW_TO_HW(lhw); 3267 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3268 if (lsta == NULL) { 3269 if (lhw->ic_node_free != NULL) 3270 lhw->ic_node_free(ni); 3271 return (NULL); 3272 } 3273 3274 return (ni); 3275 } 3276 3277 static int 3278 lkpi_ic_node_init(struct ieee80211_node *ni) 3279 { 3280 struct ieee80211com *ic; 3281 struct lkpi_hw *lhw; 3282 struct lkpi_sta *lsta; 3283 int error; 3284 3285 ic = ni->ni_ic; 3286 lhw = ic->ic_softc; 3287 3288 if (lhw->ic_node_init != NULL) { 3289 error = lhw->ic_node_init(ni); 3290 if (error != 0) 3291 return (error); 3292 } 3293 3294 lsta = ni->ni_drv_data; 3295 3296 /* Now take the reference before linking it to the table. */ 3297 lsta->ni = ieee80211_ref_node(ni); 3298 3299 /* XXX-BZ Sync other state over. */ 3300 IMPROVE(); 3301 3302 return (0); 3303 } 3304 3305 static void 3306 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3307 { 3308 struct ieee80211com *ic; 3309 struct lkpi_hw *lhw; 3310 3311 ic = ni->ni_ic; 3312 lhw = ic->ic_softc; 3313 3314 /* XXX-BZ remove from driver, ... */ 3315 IMPROVE(); 3316 3317 if (lhw->ic_node_cleanup != NULL) 3318 lhw->ic_node_cleanup(ni); 3319 } 3320 3321 static void 3322 lkpi_ic_node_free(struct ieee80211_node *ni) 3323 { 3324 struct ieee80211com *ic; 3325 struct lkpi_hw *lhw; 3326 struct lkpi_sta *lsta; 3327 3328 ic = ni->ni_ic; 3329 lhw = ic->ic_softc; 3330 lsta = ni->ni_drv_data; 3331 if (lsta == NULL) 3332 goto out; 3333 3334 /* XXX-BZ free resources, ... */ 3335 IMPROVE(); 3336 3337 /* Flush mbufq (make sure to release ni refs!). */ 3338 #ifdef __notyet__ 3339 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 3340 __func__, lsta, mbufq_len(&lsta->txq))); 3341 #endif 3342 /* Drain taskq. */ 3343 3344 /* Drain sta->txq[] */ 3345 mtx_destroy(&lsta->txq_mtx); 3346 3347 /* Remove lsta if added_to_drv. */ 3348 3349 /* Remove lsta from vif */ 3350 /* Remove ref from lsta node... */ 3351 /* Free lsta. */ 3352 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 3353 3354 out: 3355 if (lhw->ic_node_free != NULL) 3356 lhw->ic_node_free(ni); 3357 } 3358 3359 static int 3360 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3361 const struct ieee80211_bpf_params *params __unused) 3362 { 3363 struct lkpi_sta *lsta; 3364 3365 lsta = ni->ni_drv_data; 3366 3367 /* Queue the packet and enqueue the task to handle it. */ 3368 LKPI_80211_LSTA_LOCK(lsta); 3369 mbufq_enqueue(&lsta->txq, m); 3370 LKPI_80211_LSTA_UNLOCK(lsta); 3371 3372 #ifdef LINUXKPI_DEBUG_80211 3373 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3374 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3375 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3376 mbufq_len(&lsta->txq)); 3377 #endif 3378 3379 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3380 return (0); 3381 } 3382 3383 static void 3384 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3385 { 3386 struct ieee80211_node *ni; 3387 #ifndef LKPI_80211_HW_CRYPTO 3388 struct ieee80211_frame *wh; 3389 #endif 3390 struct ieee80211_key *k; 3391 struct sk_buff *skb; 3392 struct ieee80211com *ic; 3393 struct lkpi_hw *lhw; 3394 struct ieee80211_hw *hw; 3395 struct lkpi_vif *lvif; 3396 struct ieee80211_vif *vif; 3397 struct ieee80211_channel *c; 3398 struct ieee80211_tx_control control; 3399 struct ieee80211_tx_info *info; 3400 struct ieee80211_sta *sta; 3401 struct ieee80211_hdr *hdr; 3402 void *buf; 3403 uint8_t ac, tid; 3404 3405 M_ASSERTPKTHDR(m); 3406 #ifdef LINUXKPI_DEBUG_80211 3407 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3408 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3409 #endif 3410 3411 ni = lsta->ni; 3412 k = NULL; 3413 #ifndef LKPI_80211_HW_CRYPTO 3414 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3415 wh = mtod(m, struct ieee80211_frame *); 3416 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3417 /* Retrieve key for TX && do software encryption. */ 3418 k = ieee80211_crypto_encap(ni, m); 3419 if (k == NULL) { 3420 ieee80211_free_node(ni); 3421 m_freem(m); 3422 return; 3423 } 3424 } 3425 #endif 3426 3427 ic = ni->ni_ic; 3428 lhw = ic->ic_softc; 3429 hw = LHW_TO_HW(lhw); 3430 c = ni->ni_chan; 3431 3432 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3433 struct lkpi_radiotap_tx_hdr *rtap; 3434 3435 rtap = &lhw->rtap_tx; 3436 rtap->wt_flags = 0; 3437 if (k != NULL) 3438 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3439 if (m->m_flags & M_FRAG) 3440 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3441 IMPROVE(); 3442 rtap->wt_rate = 0; 3443 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3444 rtap->wt_chan_freq = htole16(c->ic_freq); 3445 rtap->wt_chan_flags = htole16(c->ic_flags); 3446 } 3447 3448 ieee80211_radiotap_tx(ni->ni_vap, m); 3449 } 3450 3451 /* 3452 * net80211 should handle hw->extra_tx_headroom. 3453 * Though for as long as we are copying we don't mind. 3454 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3455 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3456 */ 3457 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3458 if (skb == NULL) { 3459 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3460 ieee80211_free_node(ni); 3461 m_freem(m); 3462 return; 3463 } 3464 skb_reserve(skb, hw->extra_tx_headroom); 3465 3466 /* XXX-BZ we need a SKB version understanding mbuf. */ 3467 /* Save the mbuf for ieee80211_tx_complete(). */ 3468 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3469 skb->m = m; 3470 #if 0 3471 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3472 #else 3473 buf = skb_put(skb, m->m_pkthdr.len); 3474 m_copydata(m, 0, m->m_pkthdr.len, buf); 3475 #endif 3476 /* Save the ni. */ 3477 m->m_pkthdr.PH_loc.ptr = ni; 3478 3479 lvif = VAP_TO_LVIF(ni->ni_vap); 3480 vif = LVIF_TO_VIF(lvif); 3481 3482 hdr = (void *)skb->data; 3483 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3484 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3485 skb->priority = 0; 3486 ac = IEEE80211_AC_BE; 3487 } else { 3488 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3489 ac = ieee80211e_up_to_ac[tid & 7]; 3490 } 3491 skb_set_queue_mapping(skb, ac); 3492 3493 info = IEEE80211_SKB_CB(skb); 3494 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3495 /* Slight delay; probably only happens on scanning so fine? */ 3496 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3497 c = ic->ic_curchan; 3498 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3499 info->hw_queue = vif->hw_queue[ac]; 3500 if (m->m_flags & M_EAPOL) 3501 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3502 info->control.vif = vif; 3503 /* XXX-BZ info->control.rates */ 3504 #ifdef __notyet__ 3505 #ifdef LKPI_80211_HT 3506 info->control.rts_cts_rate_idx= 3507 info->control.use_rts= /* RTS */ 3508 info->control.use_cts_prot= /* RTS/CTS*/ 3509 #endif 3510 #endif 3511 3512 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3513 if (lsta != NULL) { 3514 sta = LSTA_TO_STA(lsta); 3515 #ifdef LKPI_80211_HW_CRYPTO 3516 info->control.hw_key = lsta->kc; 3517 #endif 3518 } else { 3519 sta = NULL; 3520 } 3521 3522 IMPROVE(); 3523 3524 if (sta != NULL) { 3525 struct lkpi_txq *ltxq; 3526 3527 ltxq = NULL; 3528 if (!ieee80211_is_data_present(hdr->frame_control)) { 3529 if (vif->type == NL80211_IFTYPE_STATION && 3530 lsta->added_to_drv && 3531 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3532 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3533 } else if (lsta->added_to_drv && 3534 sta->txq[skb->priority] != NULL) { 3535 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3536 } 3537 if (ltxq == NULL) 3538 goto ops_tx; 3539 3540 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3541 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3542 3543 skb_queue_tail(<xq->skbq, skb); 3544 #ifdef LINUXKPI_DEBUG_80211 3545 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3546 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3547 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3548 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3549 __func__, __LINE__, 3550 curthread->td_tid, (unsigned int)ticks, 3551 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3552 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3553 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3554 #endif 3555 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3556 return; 3557 } 3558 3559 ops_tx: 3560 #ifdef LINUXKPI_DEBUG_80211 3561 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3562 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3563 "TX ac %d prio %u qmap %u\n", 3564 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3565 skb, ac, skb->priority, skb->qmap); 3566 #endif 3567 memset(&control, 0, sizeof(control)); 3568 control.sta = sta; 3569 3570 lkpi_80211_mo_tx(hw, &control, skb); 3571 return; 3572 } 3573 3574 static void 3575 lkpi_80211_txq_task(void *ctx, int pending) 3576 { 3577 struct lkpi_sta *lsta; 3578 struct mbufq mq; 3579 struct mbuf *m; 3580 3581 lsta = ctx; 3582 3583 #ifdef LINUXKPI_DEBUG_80211 3584 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3585 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3586 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3587 pending, mbufq_len(&lsta->txq)); 3588 #endif 3589 3590 mbufq_init(&mq, IFQ_MAXLEN); 3591 3592 LKPI_80211_LSTA_LOCK(lsta); 3593 mbufq_concat(&mq, &lsta->txq); 3594 LKPI_80211_LSTA_UNLOCK(lsta); 3595 3596 m = mbufq_dequeue(&mq); 3597 while (m != NULL) { 3598 lkpi_80211_txq_tx_one(lsta, m); 3599 m = mbufq_dequeue(&mq); 3600 } 3601 } 3602 3603 static int 3604 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3605 { 3606 3607 /* XXX TODO */ 3608 IMPROVE(); 3609 3610 /* Quick and dirty cheating hack. */ 3611 struct ieee80211_node *ni; 3612 3613 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3614 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3615 } 3616 3617 #ifdef LKPI_80211_HT 3618 static int 3619 lkpi_ic_recv_action(struct ieee80211_node *ni, const struct ieee80211_frame *wh, 3620 const uint8_t *frm, const uint8_t *efrm) 3621 { 3622 struct ieee80211com *ic; 3623 struct lkpi_hw *lhw; 3624 3625 ic = ni->ni_ic; 3626 lhw = ic->ic_softc; 3627 3628 IMPROVE_HT(); 3629 3630 return (lhw->ic_recv_action(ni, wh, frm, efrm)); 3631 } 3632 3633 static int 3634 lkpi_ic_send_action(struct ieee80211_node *ni, int category, int action, void *sa) 3635 { 3636 struct ieee80211com *ic; 3637 struct lkpi_hw *lhw; 3638 3639 ic = ni->ni_ic; 3640 lhw = ic->ic_softc; 3641 3642 IMPROVE_HT(); 3643 3644 return (lhw->ic_send_action(ni, category, action, sa)); 3645 } 3646 3647 3648 static int 3649 lkpi_ic_ampdu_enable(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3650 { 3651 struct ieee80211com *ic; 3652 struct lkpi_hw *lhw; 3653 3654 ic = ni->ni_ic; 3655 lhw = ic->ic_softc; 3656 3657 IMPROVE_HT(); 3658 3659 return (lhw->ic_ampdu_enable(ni, tap)); 3660 } 3661 3662 static int 3663 lkpi_ic_addba_request(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3664 int dialogtoken, int baparamset, int batimeout) 3665 { 3666 struct ieee80211com *ic; 3667 struct lkpi_hw *lhw; 3668 3669 ic = ni->ni_ic; 3670 lhw = ic->ic_softc; 3671 3672 IMPROVE_HT(); 3673 3674 return (lhw->ic_addba_request(ni, tap, dialogtoken, baparamset, batimeout)); 3675 } 3676 3677 static int 3678 lkpi_ic_addba_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3679 int status, int baparamset, int batimeout) 3680 { 3681 struct ieee80211com *ic; 3682 struct lkpi_hw *lhw; 3683 3684 ic = ni->ni_ic; 3685 lhw = ic->ic_softc; 3686 3687 IMPROVE_HT(); 3688 3689 return (lhw->ic_addba_response(ni, tap, status, baparamset, batimeout)); 3690 } 3691 3692 static void 3693 lkpi_ic_addba_stop(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3694 { 3695 struct ieee80211com *ic; 3696 struct lkpi_hw *lhw; 3697 3698 ic = ni->ni_ic; 3699 lhw = ic->ic_softc; 3700 3701 IMPROVE_HT(); 3702 3703 lhw->ic_addba_stop(ni, tap); 3704 } 3705 3706 static void 3707 lkpi_ic_addba_response_timeout(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap) 3708 { 3709 struct ieee80211com *ic; 3710 struct lkpi_hw *lhw; 3711 3712 ic = ni->ni_ic; 3713 lhw = ic->ic_softc; 3714 3715 IMPROVE_HT(); 3716 3717 lhw->ic_addba_response_timeout(ni, tap); 3718 } 3719 3720 static void 3721 lkpi_ic_bar_response(struct ieee80211_node *ni, struct ieee80211_tx_ampdu *tap, 3722 int status) 3723 { 3724 struct ieee80211com *ic; 3725 struct lkpi_hw *lhw; 3726 3727 ic = ni->ni_ic; 3728 lhw = ic->ic_softc; 3729 3730 IMPROVE_HT(); 3731 3732 lhw->ic_bar_response(ni, tap, status); 3733 } 3734 3735 static int 3736 lkpi_ic_ampdu_rx_start(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap, 3737 int baparamset, int batimeout, int baseqctl) 3738 { 3739 struct ieee80211com *ic; 3740 struct lkpi_hw *lhw; 3741 struct ieee80211_hw *hw; 3742 struct ieee80211vap *vap; 3743 struct lkpi_vif *lvif; 3744 struct ieee80211_vif *vif; 3745 struct lkpi_sta *lsta; 3746 struct ieee80211_sta *sta; 3747 struct ieee80211_ampdu_params params; 3748 int error; 3749 3750 ic = ni->ni_ic; 3751 lhw = ic->ic_softc; 3752 hw = LHW_TO_HW(lhw); 3753 vap = ni->ni_vap; 3754 lvif = VAP_TO_LVIF(vap); 3755 vif = LVIF_TO_VIF(lvif); 3756 lsta = ni->ni_drv_data; 3757 sta = LSTA_TO_STA(lsta); 3758 3759 params.sta = sta; 3760 params.action = IEEE80211_AMPDU_RX_START; 3761 params.buf_size = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_BUFSIZ); 3762 if (params.buf_size == 0) 3763 params.buf_size = IEEE80211_MAX_AMPDU_BUF_HT; 3764 else 3765 params.buf_size = min(params.buf_size, IEEE80211_MAX_AMPDU_BUF_HT); 3766 if (params.buf_size > hw->max_rx_aggregation_subframes) 3767 params.buf_size = hw->max_rx_aggregation_subframes; 3768 params.timeout = le16toh(batimeout); 3769 params.ssn = _IEEE80211_MASKSHIFT(le16toh(baseqctl), IEEE80211_BASEQ_START); 3770 params.tid = _IEEE80211_MASKSHIFT(le16toh(baparamset), IEEE80211_BAPS_TID); 3771 params.amsdu = false; 3772 3773 IMPROVE_HT("Do we need to distinguish based on SUPPORTS_REORDERING_BUFFER?"); 3774 3775 /* This may call kalloc. Make sure we can sleep. */ 3776 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 3777 if (error != 0) { 3778 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 3779 __func__, error, ni, rap); 3780 return (error); 3781 } 3782 IMPROVE_HT("net80211 is missing the error check on return and assumes success"); 3783 3784 error = lhw->ic_ampdu_rx_start(ni, rap, baparamset, batimeout, baseqctl); 3785 return (error); 3786 } 3787 3788 static void 3789 lkpi_ic_ampdu_rx_stop(struct ieee80211_node *ni, struct ieee80211_rx_ampdu *rap) 3790 { 3791 struct ieee80211com *ic; 3792 struct lkpi_hw *lhw; 3793 struct ieee80211_hw *hw; 3794 struct ieee80211vap *vap; 3795 struct lkpi_vif *lvif; 3796 struct ieee80211_vif *vif; 3797 struct lkpi_sta *lsta; 3798 struct ieee80211_sta *sta; 3799 struct ieee80211_ampdu_params params; 3800 int error; 3801 uint8_t tid; 3802 3803 ic = ni->ni_ic; 3804 lhw = ic->ic_softc; 3805 3806 /* 3807 * We should not (cannot) call into mac80211 ops with AMPDU_RX_STOP if 3808 * we did not START. Some drivers pass it down to firmware which will 3809 * simply barf and net80211 calls ieee80211_ht_node_cleanup() from 3810 * ieee80211_ht_node_init() amongst others which will iterate over all 3811 * tid and call ic_ampdu_rx_stop() unconditionally. 3812 * XXX net80211 should probably be more "gentle" in these cases and 3813 * track some state itself. 3814 */ 3815 if ((rap->rxa_flags & IEEE80211_AGGR_RUNNING) == 0) 3816 goto net80211_only; 3817 3818 hw = LHW_TO_HW(lhw); 3819 vap = ni->ni_vap; 3820 lvif = VAP_TO_LVIF(vap); 3821 vif = LVIF_TO_VIF(lvif); 3822 lsta = ni->ni_drv_data; 3823 sta = LSTA_TO_STA(lsta); 3824 3825 IMPROVE_HT("This really should be passed from ht_recv_action_ba_delba."); 3826 for (tid = 0; tid < WME_NUM_TID; tid++) { 3827 if (&ni->ni_rx_ampdu[tid] == rap) 3828 break; 3829 } 3830 3831 params.sta = sta; 3832 params.action = IEEE80211_AMPDU_RX_STOP; 3833 params.buf_size = 0; 3834 params.timeout = 0; 3835 params.ssn = 0; 3836 params.tid = tid; 3837 params.amsdu = false; 3838 3839 error = lkpi_80211_mo_ampdu_action(hw, vif, ¶ms); 3840 if (error != 0) 3841 ic_printf(ic, "%s: mo_ampdu_action returned %d. ni %p rap %p\n", 3842 __func__, error, ni, rap); 3843 3844 net80211_only: 3845 lhw->ic_ampdu_rx_stop(ni, rap); 3846 } 3847 #endif 3848 3849 static void 3850 lkpi_ic_getradiocaps_ht(struct ieee80211com *ic, struct ieee80211_hw *hw, 3851 uint8_t *bands, int *chan_flags, enum nl80211_band band) 3852 { 3853 #ifdef LKPI_80211_HT 3854 struct ieee80211_sta_ht_cap *ht_cap; 3855 3856 ht_cap = &hw->wiphy->bands[band]->ht_cap; 3857 if (!ht_cap->ht_supported) 3858 return; 3859 3860 switch (band) { 3861 case NL80211_BAND_2GHZ: 3862 setbit(bands, IEEE80211_MODE_11NG); 3863 break; 3864 case NL80211_BAND_5GHZ: 3865 setbit(bands, IEEE80211_MODE_11NA); 3866 break; 3867 default: 3868 IMPROVE("Unsupported band %d", band); 3869 return; 3870 } 3871 3872 ic->ic_htcaps = IEEE80211_HTC_HT; /* HT operation */ 3873 3874 /* 3875 * Rather than manually checking each flag and 3876 * translating IEEE80211_HT_CAP_ to IEEE80211_HTCAP_, 3877 * simply copy the 16bits. 3878 */ 3879 ic->ic_htcaps |= ht_cap->cap; 3880 3881 /* Then deal with the other flags. */ 3882 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) 3883 ic->ic_htcaps |= IEEE80211_HTC_AMPDU; 3884 #ifdef __notyet__ 3885 if (ieee80211_hw_check(hw, TX_AMSDU)) 3886 ic->ic_htcaps |= IEEE80211_HTC_AMSDU; 3887 if (ieee80211_hw_check(hw, SUPPORTS_AMSDU_IN_AMPDU)) 3888 ic->ic_htcaps |= (IEEE80211_HTC_RX_AMSDU_AMPDU | 3889 IEEE80211_HTC_TX_AMSDU_AMPDU); 3890 #endif 3891 3892 IMPROVE("PS, ampdu_*, ht_cap.mcs.tx_params, ..."); 3893 ic->ic_htcaps |= IEEE80211_HTCAP_SMPS_OFF; 3894 3895 /* Only add HT40 channels if supported. */ 3896 if ((ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40) != 0 && 3897 chan_flags != NULL) 3898 *chan_flags |= NET80211_CBW_FLAG_HT40; 3899 #endif 3900 } 3901 3902 static void 3903 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3904 int *n, struct ieee80211_channel *c) 3905 { 3906 struct lkpi_hw *lhw; 3907 struct ieee80211_hw *hw; 3908 struct linuxkpi_ieee80211_channel *channels; 3909 uint8_t bands[IEEE80211_MODE_BYTES]; 3910 int chan_flags, error, i, nchans; 3911 3912 /* Channels */ 3913 lhw = ic->ic_softc; 3914 hw = LHW_TO_HW(lhw); 3915 3916 /* NL80211_BAND_2GHZ */ 3917 nchans = 0; 3918 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3919 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3920 if (nchans > 0) { 3921 memset(bands, 0, sizeof(bands)); 3922 chan_flags = 0; 3923 setbit(bands, IEEE80211_MODE_11B); 3924 /* XXX-BZ unclear how to check for 11g. */ 3925 3926 IMPROVE("the bitrates may have flags?"); 3927 setbit(bands, IEEE80211_MODE_11G); 3928 3929 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 3930 NL80211_BAND_2GHZ); 3931 3932 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3933 for (i = 0; i < nchans && *n < maxchan; i++) { 3934 uint32_t nflags = 0; 3935 int cflags = chan_flags; 3936 3937 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3938 ic_printf(ic, "%s: Skipping disabled chan " 3939 "[%u/%u/%#x]\n", __func__, 3940 channels[i].hw_value, 3941 channels[i].center_freq, channels[i].flags); 3942 continue; 3943 } 3944 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3945 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3946 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3947 nflags |= IEEE80211_CHAN_DFS; 3948 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3949 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3950 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3951 cflags &= ~NET80211_CBW_FLAG_VHT80; 3952 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3953 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3954 cflags &= ~NET80211_CBW_FLAG_HT40; 3955 3956 error = ieee80211_add_channel_cbw(c, maxchan, n, 3957 channels[i].hw_value, channels[i].center_freq, 3958 channels[i].max_power, 3959 nflags, bands, cflags); 3960 /* net80211::ENOBUFS: *n >= maxchans */ 3961 if (error != 0 && error != ENOBUFS) 3962 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3963 "returned error %d\n", 3964 __func__, channels[i].hw_value, 3965 channels[i].center_freq, channels[i].flags, 3966 nflags, chan_flags, cflags, error); 3967 if (error != 0) 3968 break; 3969 } 3970 } 3971 3972 /* NL80211_BAND_5GHZ */ 3973 nchans = 0; 3974 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3975 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3976 if (nchans > 0) { 3977 memset(bands, 0, sizeof(bands)); 3978 chan_flags = 0; 3979 setbit(bands, IEEE80211_MODE_11A); 3980 3981 lkpi_ic_getradiocaps_ht(ic, hw, bands, &chan_flags, 3982 NL80211_BAND_5GHZ); 3983 3984 #ifdef LKPI_80211_VHT 3985 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3986 3987 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3988 ic->ic_vht_cap.vht_cap_info = 3989 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3990 3991 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3992 chan_flags |= NET80211_CBW_FLAG_VHT80; 3993 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3994 ic->ic_vht_cap.vht_cap_info)) 3995 chan_flags |= NET80211_CBW_FLAG_VHT160; 3996 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3997 ic->ic_vht_cap.vht_cap_info)) 3998 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3999 } 4000 #endif 4001 4002 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 4003 for (i = 0; i < nchans && *n < maxchan; i++) { 4004 uint32_t nflags = 0; 4005 int cflags = chan_flags; 4006 4007 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 4008 ic_printf(ic, "%s: Skipping disabled chan " 4009 "[%u/%u/%#x]\n", __func__, 4010 channels[i].hw_value, 4011 channels[i].center_freq, channels[i].flags); 4012 continue; 4013 } 4014 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 4015 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 4016 if (channels[i].flags & IEEE80211_CHAN_RADAR) 4017 nflags |= IEEE80211_CHAN_DFS; 4018 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 4019 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 4020 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 4021 cflags &= ~NET80211_CBW_FLAG_VHT80; 4022 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 4023 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 4024 cflags &= ~NET80211_CBW_FLAG_HT40; 4025 4026 error = ieee80211_add_channel_cbw(c, maxchan, n, 4027 channels[i].hw_value, channels[i].center_freq, 4028 channels[i].max_power, 4029 nflags, bands, cflags); 4030 /* net80211::ENOBUFS: *n >= maxchans */ 4031 if (error != 0 && error != ENOBUFS) 4032 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 4033 "returned error %d\n", 4034 __func__, channels[i].hw_value, 4035 channels[i].center_freq, channels[i].flags, 4036 nflags, chan_flags, cflags, error); 4037 if (error != 0) 4038 break; 4039 } 4040 } 4041 } 4042 4043 static void * 4044 lkpi_ieee80211_ifalloc(void) 4045 { 4046 struct ieee80211com *ic; 4047 4048 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 4049 if (ic == NULL) 4050 return (NULL); 4051 4052 /* Setting these happens later when we have device information. */ 4053 ic->ic_softc = NULL; 4054 ic->ic_name = "linuxkpi"; 4055 4056 return (ic); 4057 } 4058 4059 struct ieee80211_hw * 4060 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 4061 { 4062 struct ieee80211_hw *hw; 4063 struct lkpi_hw *lhw; 4064 struct wiphy *wiphy; 4065 int ac; 4066 4067 /* Get us and the driver data also allocated. */ 4068 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 4069 if (wiphy == NULL) 4070 return (NULL); 4071 4072 lhw = wiphy_priv(wiphy); 4073 lhw->ops = ops; 4074 4075 LKPI_80211_LHW_LOCK_INIT(lhw); 4076 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 4077 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 4078 TAILQ_INIT(&lhw->lvif_head); 4079 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 4080 lhw->txq_generation[ac] = 1; 4081 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 4082 } 4083 4084 /* 4085 * XXX-BZ TODO make sure there is a "_null" function to all ops 4086 * not initialized. 4087 */ 4088 hw = LHW_TO_HW(lhw); 4089 hw->wiphy = wiphy; 4090 hw->conf.flags |= IEEE80211_CONF_IDLE; 4091 hw->priv = (void *)(lhw + 1); 4092 4093 /* BSD Specific. */ 4094 lhw->ic = lkpi_ieee80211_ifalloc(); 4095 if (lhw->ic == NULL) { 4096 ieee80211_free_hw(hw); 4097 return (NULL); 4098 } 4099 4100 IMPROVE(); 4101 4102 return (hw); 4103 } 4104 4105 void 4106 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 4107 { 4108 struct lkpi_hw *lhw; 4109 4110 lhw = HW_TO_LHW(hw); 4111 free(lhw->ic, M_LKPI80211); 4112 lhw->ic = NULL; 4113 4114 /* Cleanup more of lhw here or in wiphy_free()? */ 4115 sx_destroy(&lhw->lvif_sx); 4116 LKPI_80211_LHW_LOCK_DESTROY(lhw); 4117 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 4118 IMPROVE(); 4119 } 4120 4121 void 4122 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 4123 { 4124 struct lkpi_hw *lhw; 4125 struct ieee80211com *ic; 4126 4127 lhw = HW_TO_LHW(hw); 4128 ic = lhw->ic; 4129 4130 /* Now set a proper name before ieee80211_ifattach(). */ 4131 ic->ic_softc = lhw; 4132 ic->ic_name = name; 4133 4134 /* XXX-BZ do we also need to set wiphy name? */ 4135 } 4136 4137 struct ieee80211_hw * 4138 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 4139 { 4140 struct lkpi_hw *lhw; 4141 4142 lhw = wiphy_priv(wiphy); 4143 return (LHW_TO_HW(lhw)); 4144 } 4145 4146 static void 4147 lkpi_radiotap_attach(struct lkpi_hw *lhw) 4148 { 4149 struct ieee80211com *ic; 4150 4151 ic = lhw->ic; 4152 ieee80211_radiotap_attach(ic, 4153 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 4154 LKPI_RTAP_TX_FLAGS_PRESENT, 4155 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 4156 LKPI_RTAP_RX_FLAGS_PRESENT); 4157 } 4158 4159 int 4160 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 4161 { 4162 struct ieee80211com *ic; 4163 struct lkpi_hw *lhw; 4164 int band, i; 4165 4166 lhw = HW_TO_LHW(hw); 4167 ic = lhw->ic; 4168 4169 /* We do it this late as wiphy->dev should be set for the name. */ 4170 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 4171 if (lhw->workq == NULL) 4172 return (-EAGAIN); 4173 4174 /* XXX-BZ figure this out how they count his... */ 4175 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 4176 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4177 hw->wiphy->perm_addr); 4178 } else if (hw->wiphy->n_addresses > 0) { 4179 /* We take the first one. */ 4180 IEEE80211_ADDR_COPY(ic->ic_macaddr, 4181 hw->wiphy->addresses[0].addr); 4182 } else { 4183 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 4184 } 4185 4186 #ifdef __not_yet__ 4187 /* See comment in lkpi_80211_txq_tx_one(). */ 4188 ic->ic_headroom = hw->extra_tx_headroom; 4189 #endif 4190 4191 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 4192 ic->ic_opmode = IEEE80211_M_STA; 4193 4194 /* Set device capabilities. */ 4195 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 4196 ic->ic_caps = 4197 IEEE80211_C_STA | 4198 IEEE80211_C_MONITOR | 4199 IEEE80211_C_WPA | /* WPA/RSN */ 4200 #ifdef LKPI_80211_WME 4201 IEEE80211_C_WME | 4202 #endif 4203 #if 0 4204 IEEE80211_C_PMGT | 4205 #endif 4206 IEEE80211_C_SHSLOT | /* short slot time supported */ 4207 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 4208 ; 4209 #if 0 4210 /* Scanning is a different kind of beast to re-work. */ 4211 ic->ic_caps |= IEEE80211_C_BGSCAN; 4212 #endif 4213 if (lhw->ops->hw_scan) { 4214 /* 4215 * Advertise full-offload scanning. 4216 * 4217 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 4218 * we essentially disable hw_scan for all drivers not setting 4219 * the flag. 4220 */ 4221 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 4222 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 4223 } 4224 4225 /* 4226 * The wiphy variables report bitmasks of avail antennas. 4227 * (*get_antenna) get the current bitmask sets which can be 4228 * altered by (*set_antenna) for some drivers. 4229 * XXX-BZ will the count alone do us much good long-term in net80211? 4230 */ 4231 if (hw->wiphy->available_antennas_rx || 4232 hw->wiphy->available_antennas_tx) { 4233 uint32_t rxs, txs; 4234 4235 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 4236 ic->ic_rxstream = bitcount32(rxs); 4237 ic->ic_txstream = bitcount32(txs); 4238 } 4239 } 4240 4241 ic->ic_cryptocaps = 0; 4242 #ifdef LKPI_80211_HW_CRYPTO 4243 if (hw->wiphy->n_cipher_suites > 0) { 4244 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 4245 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 4246 hw->wiphy->cipher_suites[i]); 4247 } 4248 #endif 4249 4250 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 4251 ic->ic_channels); 4252 4253 ieee80211_ifattach(ic); 4254 4255 ic->ic_update_mcast = lkpi_ic_update_mcast; 4256 ic->ic_update_promisc = lkpi_ic_update_promisc; 4257 ic->ic_update_chw = lkpi_ic_update_chw; 4258 ic->ic_parent = lkpi_ic_parent; 4259 ic->ic_scan_start = lkpi_ic_scan_start; 4260 ic->ic_scan_end = lkpi_ic_scan_end; 4261 ic->ic_set_channel = lkpi_ic_set_channel; 4262 ic->ic_transmit = lkpi_ic_transmit; 4263 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 4264 ic->ic_vap_create = lkpi_ic_vap_create; 4265 ic->ic_vap_delete = lkpi_ic_vap_delete; 4266 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 4267 ic->ic_wme.wme_update = lkpi_ic_wme_update; 4268 4269 lhw->ic_scan_curchan = ic->ic_scan_curchan; 4270 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 4271 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 4272 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 4273 4274 lhw->ic_node_alloc = ic->ic_node_alloc; 4275 ic->ic_node_alloc = lkpi_ic_node_alloc; 4276 lhw->ic_node_init = ic->ic_node_init; 4277 ic->ic_node_init = lkpi_ic_node_init; 4278 lhw->ic_node_cleanup = ic->ic_node_cleanup; 4279 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 4280 lhw->ic_node_free = ic->ic_node_free; 4281 ic->ic_node_free = lkpi_ic_node_free; 4282 4283 #ifdef LKPI_80211_HT 4284 lhw->ic_recv_action = ic->ic_recv_action; 4285 ic->ic_recv_action = lkpi_ic_recv_action; 4286 lhw->ic_send_action = ic->ic_send_action; 4287 ic->ic_send_action = lkpi_ic_send_action; 4288 4289 lhw->ic_ampdu_enable = ic->ic_ampdu_enable; 4290 ic->ic_ampdu_enable = lkpi_ic_ampdu_enable; 4291 4292 lhw->ic_addba_request = ic->ic_addba_request; 4293 ic->ic_addba_request = lkpi_ic_addba_request; 4294 lhw->ic_addba_response = ic->ic_addba_response; 4295 ic->ic_addba_response = lkpi_ic_addba_response; 4296 lhw->ic_addba_stop = ic->ic_addba_stop; 4297 ic->ic_addba_stop = lkpi_ic_addba_stop; 4298 lhw->ic_addba_response_timeout = ic->ic_addba_response_timeout; 4299 ic->ic_addba_response_timeout = lkpi_ic_addba_response_timeout; 4300 4301 lhw->ic_bar_response = ic->ic_bar_response; 4302 ic->ic_bar_response = lkpi_ic_bar_response; 4303 4304 lhw->ic_ampdu_rx_start = ic->ic_ampdu_rx_start; 4305 ic->ic_ampdu_rx_start = lkpi_ic_ampdu_rx_start; 4306 lhw->ic_ampdu_rx_stop = ic->ic_ampdu_rx_stop; 4307 ic->ic_ampdu_rx_stop = lkpi_ic_ampdu_rx_stop; 4308 #endif 4309 4310 lkpi_radiotap_attach(lhw); 4311 4312 /* 4313 * Assign the first possible channel for now; seems Realtek drivers 4314 * expect one. 4315 * Also remember the amount of bands we support and the most rates 4316 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 4317 */ 4318 lhw->supbands = lhw->max_rates = 0; 4319 for (band = 0; band < NUM_NL80211_BANDS; band++) { 4320 struct ieee80211_supported_band *supband; 4321 struct linuxkpi_ieee80211_channel *channels; 4322 4323 supband = hw->wiphy->bands[band]; 4324 if (supband == NULL || supband->n_channels == 0) 4325 continue; 4326 4327 lhw->supbands++; 4328 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 4329 4330 /* If we have a channel, we need to keep counting supbands. */ 4331 if (hw->conf.chandef.chan != NULL) 4332 continue; 4333 4334 channels = supband->channels; 4335 for (i = 0; i < supband->n_channels; i++) { 4336 4337 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 4338 continue; 4339 4340 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 4341 #ifdef LKPI_80211_HT 4342 (ic->ic_htcaps & IEEE80211_HTC_HT) ? 0 : 4343 #endif 4344 NL80211_CHAN_NO_HT); 4345 break; 4346 } 4347 } 4348 4349 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 4350 4351 /* Make sure we do not support more than net80211 is willing to take. */ 4352 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 4353 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 4354 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 4355 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 4356 } 4357 4358 /* 4359 * The maximum supported bitrates on any band + size for 4360 * DSSS Parameter Set give our per-band IE size. 4361 * SSID is the responsibility of the driver and goes on the side. 4362 * The user specified bits coming from the vap go into the 4363 * "common ies" fields. 4364 */ 4365 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 4366 if (lhw->max_rates > IEEE80211_RATE_SIZE) 4367 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 4368 4369 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 4370 /* 4371 * net80211 does not seem to support the DSSS Parameter Set but 4372 * some of the drivers insert it so calculate the extra fixed 4373 * space in. 4374 */ 4375 lhw->scan_ie_len += 2 + 1; 4376 } 4377 4378 #if defined(LKPI_80211_HT) 4379 if ((ic->ic_htcaps & IEEE80211_HTC_HT) != 0) 4380 lhw->scan_ie_len += sizeof(struct ieee80211_ie_htcap); 4381 #endif 4382 #if defined(LKPI_80211_VHT) 4383 if ((ic->ic_flags_ext & IEEE80211_FEXT_VHT) != 0) 4384 lhw->scan_ie_len += 2 + sizeof(struct ieee80211_vht_cap); 4385 #endif 4386 4387 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 4388 if (hw->wiphy->max_scan_ie_len > 0) { 4389 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 4390 goto err; 4391 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 4392 } 4393 4394 if (bootverbose) 4395 ieee80211_announce(ic); 4396 4397 return (0); 4398 err: 4399 IMPROVE("TODO FIXME CLEANUP"); 4400 return (-EAGAIN); 4401 } 4402 4403 void 4404 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 4405 { 4406 struct lkpi_hw *lhw; 4407 struct ieee80211com *ic; 4408 4409 lhw = HW_TO_LHW(hw); 4410 ic = lhw->ic; 4411 ieee80211_ifdetach(ic); 4412 } 4413 4414 void 4415 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 4416 enum ieee80211_iface_iter flags, 4417 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 4418 void *arg) 4419 { 4420 struct lkpi_hw *lhw; 4421 struct lkpi_vif *lvif; 4422 struct ieee80211_vif *vif; 4423 bool active, atomic, nin_drv; 4424 4425 lhw = HW_TO_LHW(hw); 4426 4427 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 4428 IEEE80211_IFACE_ITER_RESUME_ALL| 4429 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 4430 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 4431 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 4432 __func__, flags); 4433 } 4434 4435 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 4436 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 4437 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 4438 4439 if (atomic) 4440 LKPI_80211_LHW_LVIF_LOCK(lhw); 4441 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4442 struct ieee80211vap *vap; 4443 4444 vif = LVIF_TO_VIF(lvif); 4445 4446 /* 4447 * If we want "active" interfaces, we need to distinguish on 4448 * whether the driver knows about them or not to be able to 4449 * handle the "resume" case correctly. Skip the ones the 4450 * driver does not know about. 4451 */ 4452 if (active && !lvif->added_to_drv && 4453 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 4454 continue; 4455 4456 /* 4457 * If we shall skip interfaces not added to the driver do so 4458 * if we haven't yet. 4459 */ 4460 if (nin_drv && !lvif->added_to_drv) 4461 continue; 4462 4463 /* 4464 * Run the iterator function if we are either not asking 4465 * asking for active only or if the VAP is "running". 4466 */ 4467 /* XXX-BZ probably should have state in the lvif as well. */ 4468 vap = LVIF_TO_VAP(lvif); 4469 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 4470 iterfunc(arg, vif->addr, vif); 4471 } 4472 if (atomic) 4473 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4474 } 4475 4476 void 4477 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 4478 struct ieee80211_vif *vif, 4479 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 4480 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 4481 void *arg) 4482 { 4483 4484 UNIMPLEMENTED; 4485 } 4486 4487 void 4488 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 4489 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 4490 void *), 4491 void *arg) 4492 { 4493 struct lkpi_hw *lhw; 4494 struct lkpi_vif *lvif; 4495 struct ieee80211_vif *vif; 4496 struct lkpi_chanctx *lchanctx; 4497 4498 KASSERT(hw != NULL && iterfunc != NULL, 4499 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4500 4501 lhw = HW_TO_LHW(hw); 4502 4503 IMPROVE("lchanctx should be its own list somewhere"); 4504 4505 LKPI_80211_LHW_LVIF_LOCK(lhw); 4506 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4507 4508 vif = LVIF_TO_VIF(lvif); 4509 if (vif->chanctx_conf == NULL) 4510 continue; 4511 4512 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 4513 if (!lchanctx->added_to_drv) 4514 continue; 4515 4516 iterfunc(hw, &lchanctx->conf, arg); 4517 } 4518 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4519 } 4520 4521 void 4522 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4523 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4524 { 4525 struct lkpi_hw *lhw; 4526 struct lkpi_vif *lvif; 4527 struct lkpi_sta *lsta; 4528 struct ieee80211_sta *sta; 4529 4530 KASSERT(hw != NULL && iterfunc != NULL, 4531 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4532 4533 lhw = HW_TO_LHW(hw); 4534 4535 LKPI_80211_LHW_LVIF_LOCK(lhw); 4536 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4537 4538 LKPI_80211_LVIF_LOCK(lvif); 4539 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4540 if (!lsta->added_to_drv) 4541 continue; 4542 sta = LSTA_TO_STA(lsta); 4543 iterfunc(arg, sta); 4544 } 4545 LKPI_80211_LVIF_UNLOCK(lvif); 4546 } 4547 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4548 } 4549 4550 struct linuxkpi_ieee80211_regdomain * 4551 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4552 { 4553 struct linuxkpi_ieee80211_regdomain *regd; 4554 4555 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4556 GFP_KERNEL); 4557 return (regd); 4558 } 4559 4560 int 4561 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4562 struct linuxkpi_ieee80211_regdomain *regd) 4563 { 4564 struct lkpi_hw *lhw; 4565 struct ieee80211com *ic; 4566 struct ieee80211_regdomain *rd; 4567 4568 lhw = wiphy_priv(wiphy); 4569 ic = lhw->ic; 4570 4571 rd = &ic->ic_regdomain; 4572 if (rd->isocc[0] == '\0') { 4573 rd->isocc[0] = regd->alpha2[0]; 4574 rd->isocc[1] = regd->alpha2[1]; 4575 } 4576 4577 TODO(); 4578 /* XXX-BZ finish the rest. */ 4579 4580 return (0); 4581 } 4582 4583 void 4584 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4585 struct cfg80211_scan_info *info) 4586 { 4587 struct lkpi_hw *lhw; 4588 struct ieee80211com *ic; 4589 struct ieee80211_scan_state *ss; 4590 4591 lhw = wiphy_priv(hw->wiphy); 4592 ic = lhw->ic; 4593 ss = ic->ic_scan; 4594 4595 ieee80211_scan_done(ss->ss_vap); 4596 4597 LKPI_80211_LHW_SCAN_LOCK(lhw); 4598 free(lhw->hw_req, M_LKPI80211); 4599 lhw->hw_req = NULL; 4600 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4601 wakeup(lhw); 4602 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4603 4604 return; 4605 } 4606 4607 /* For %list see comment towards the end of the function. */ 4608 void 4609 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 4610 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 4611 struct list_head *list __unused) 4612 { 4613 struct lkpi_hw *lhw; 4614 struct ieee80211com *ic; 4615 struct mbuf *m; 4616 struct skb_shared_info *shinfo; 4617 struct ieee80211_rx_status *rx_status; 4618 struct ieee80211_rx_stats rx_stats; 4619 struct ieee80211_node *ni; 4620 struct ieee80211vap *vap; 4621 struct ieee80211_hdr *hdr; 4622 struct lkpi_sta *lsta; 4623 int i, offset, ok; 4624 int8_t rssi; 4625 bool is_beacon; 4626 4627 if (skb->len < 2) { 4628 /* Need 80211 stats here. */ 4629 IMPROVE(); 4630 goto err; 4631 } 4632 4633 /* 4634 * For now do the data copy; we can later improve things. Might even 4635 * have an mbuf backing the skb data then? 4636 */ 4637 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 4638 if (m == NULL) 4639 goto err; 4640 m_copyback(m, 0, skb->tail - skb->data, skb->data); 4641 4642 shinfo = skb_shinfo(skb); 4643 offset = m->m_len; 4644 for (i = 0; i < shinfo->nr_frags; i++) { 4645 m_copyback(m, offset, shinfo->frags[i].size, 4646 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 4647 shinfo->frags[i].offset); 4648 offset += shinfo->frags[i].size; 4649 } 4650 4651 rx_status = IEEE80211_SKB_RXCB(skb); 4652 4653 hdr = (void *)skb->data; 4654 is_beacon = ieee80211_is_beacon(hdr->frame_control); 4655 4656 #ifdef LINUXKPI_DEBUG_80211 4657 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 4658 goto no_trace_beacons; 4659 4660 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4661 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 4662 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 4663 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4664 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4665 shinfo, shinfo->nr_frags, 4666 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4667 4668 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4669 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4670 4671 /* Implement a dump_rxcb() !!! */ 4672 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4673 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4674 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4675 __func__, 4676 (uintmax_t)rx_status->boottime_ns, 4677 (uintmax_t)rx_status->mactime, 4678 rx_status->device_timestamp, 4679 rx_status->flag, 4680 rx_status->freq, 4681 rx_status->bw, 4682 rx_status->encoding, 4683 rx_status->ampdu_reference, 4684 rx_status->band, 4685 rx_status->chains, 4686 rx_status->chain_signal[0], 4687 rx_status->chain_signal[1], 4688 rx_status->chain_signal[2], 4689 rx_status->chain_signal[3], 4690 rx_status->signal, 4691 rx_status->enc_flags, 4692 rx_status->he_dcm, 4693 rx_status->he_gi, 4694 rx_status->he_ru, 4695 rx_status->zero_length_psdu_type, 4696 rx_status->nss, 4697 rx_status->rate_idx); 4698 no_trace_beacons: 4699 #endif 4700 4701 memset(&rx_stats, 0, sizeof(rx_stats)); 4702 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 4703 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 4704 rx_stats.c_nf = -96; 4705 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 4706 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 4707 rssi = rx_status->signal; 4708 else 4709 rssi = rx_stats.c_nf; 4710 /* 4711 * net80211 signal strength data are in .5 dBm units relative to 4712 * the current noise floor (see comment in ieee80211_node.h). 4713 */ 4714 rssi -= rx_stats.c_nf; 4715 rx_stats.c_rssi = rssi * 2; 4716 rx_stats.r_flags |= IEEE80211_R_BAND; 4717 rx_stats.c_band = 4718 lkpi_nl80211_band_to_net80211_band(rx_status->band); 4719 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 4720 rx_stats.c_freq = rx_status->freq; 4721 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 4722 4723 /* XXX (*sta_statistics)() to get to some of that? */ 4724 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 4725 4726 lhw = HW_TO_LHW(hw); 4727 ic = lhw->ic; 4728 4729 ok = ieee80211_add_rx_params(m, &rx_stats); 4730 if (ok == 0) { 4731 m_freem(m); 4732 counter_u64_add(ic->ic_ierrors, 1); 4733 goto err; 4734 } 4735 4736 if (sta != NULL) { 4737 lsta = STA_TO_LSTA(sta); 4738 ni = ieee80211_ref_node(lsta->ni); 4739 } else { 4740 struct ieee80211_frame_min *wh; 4741 4742 wh = mtod(m, struct ieee80211_frame_min *); 4743 ni = ieee80211_find_rxnode(ic, wh); 4744 if (ni != NULL) 4745 lsta = ni->ni_drv_data; 4746 } 4747 4748 if (ni != NULL) 4749 vap = ni->ni_vap; 4750 else 4751 /* 4752 * XXX-BZ can we improve this by looking at the frame hdr 4753 * or other meta-data passed up? 4754 */ 4755 vap = TAILQ_FIRST(&ic->ic_vaps); 4756 4757 #ifdef LINUXKPI_DEBUG_80211 4758 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4759 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 4760 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 4761 ni, vap, is_beacon ? " beacon" : ""); 4762 #endif 4763 4764 if (ni != NULL && vap != NULL && is_beacon && 4765 rx_status->device_timestamp > 0 && 4766 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 4767 struct lkpi_vif *lvif; 4768 struct ieee80211_vif *vif; 4769 struct ieee80211_frame *wh; 4770 4771 wh = mtod(m, struct ieee80211_frame *); 4772 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 4773 goto skip_device_ts; 4774 4775 lvif = VAP_TO_LVIF(vap); 4776 vif = LVIF_TO_VIF(lvif); 4777 4778 IMPROVE("TIMING_BEACON_ONLY?"); 4779 /* mac80211 specific (not net80211) so keep it here. */ 4780 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 4781 /* 4782 * net80211 should take care of the other information (sync_tsf, 4783 * sync_dtim_count) as otherwise we need to parse the beacon. 4784 */ 4785 skip_device_ts: 4786 ; 4787 } 4788 4789 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 4790 ieee80211_radiotap_active_vap(vap)) { 4791 struct lkpi_radiotap_rx_hdr *rtap; 4792 4793 rtap = &lhw->rtap_rx; 4794 rtap->wr_tsft = rx_status->device_timestamp; 4795 rtap->wr_flags = 0; 4796 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 4797 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 4798 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 4799 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 4800 #if 0 /* .. or it does not given we strip it below. */ 4801 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4802 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 4803 #endif 4804 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 4805 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 4806 rtap->wr_rate = 0; 4807 IMPROVE(); 4808 /* XXX TODO status->encoding / rate_index / bw */ 4809 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4810 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4811 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4812 rtap->wr_dbm_antsignal = rssi; 4813 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4814 } 4815 4816 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4817 m_adj(m, -IEEE80211_CRC_LEN); 4818 4819 #if 0 4820 if (list != NULL) { 4821 /* 4822 * Normally this would be queued up and delivered by 4823 * netif_receive_skb_list(), napi_gro_receive(), or the like. 4824 * See mt76::mac80211.c as only current possible consumer. 4825 */ 4826 IMPROVE("we simply pass the packet to net80211 to deal with."); 4827 } 4828 #endif 4829 4830 if (ni != NULL) { 4831 ok = ieee80211_input_mimo(ni, m); 4832 ieee80211_free_node(ni); 4833 if (ok < 0) 4834 m_freem(m); 4835 } else { 4836 ok = ieee80211_input_mimo_all(ic, m); 4837 /* mbuf got consumed. */ 4838 } 4839 4840 #ifdef LINUXKPI_DEBUG_80211 4841 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4842 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4843 #endif 4844 4845 IMPROVE(); 4846 4847 err: 4848 /* The skb is ours so we can free it :-) */ 4849 kfree_skb(skb); 4850 } 4851 4852 uint8_t 4853 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4854 { 4855 const struct ieee80211_frame *wh; 4856 uint8_t tid; 4857 4858 /* Linux seems to assume this is a QOS-Data-Frame */ 4859 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4860 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4861 hdr->frame_control)); 4862 4863 wh = (const struct ieee80211_frame *)hdr; 4864 tid = ieee80211_gettid(wh); 4865 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4866 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4867 4868 return (tid); 4869 } 4870 4871 struct wiphy * 4872 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4873 { 4874 struct lkpi_wiphy *lwiphy; 4875 4876 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4877 if (lwiphy == NULL) 4878 return (NULL); 4879 lwiphy->ops = ops; 4880 4881 /* XXX TODO */ 4882 return (LWIPHY_TO_WIPHY(lwiphy)); 4883 } 4884 4885 void 4886 linuxkpi_wiphy_free(struct wiphy *wiphy) 4887 { 4888 struct lkpi_wiphy *lwiphy; 4889 4890 if (wiphy == NULL) 4891 return; 4892 4893 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4894 kfree(lwiphy); 4895 } 4896 4897 uint32_t 4898 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4899 enum nl80211_band band) 4900 { 4901 4902 switch (band) { 4903 case NL80211_BAND_2GHZ: 4904 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4905 break; 4906 case NL80211_BAND_5GHZ: 4907 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4908 break; 4909 default: 4910 /* XXX abort, retry, error, panic? */ 4911 break; 4912 } 4913 4914 return (0); 4915 } 4916 4917 uint32_t 4918 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4919 { 4920 4921 return (ieee80211_mhz2ieee(freq, 0)); 4922 } 4923 4924 static struct lkpi_sta * 4925 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4926 { 4927 struct lkpi_sta *lsta, *temp; 4928 4929 LKPI_80211_LVIF_LOCK(lvif); 4930 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4931 if (lsta->ni == ni) { 4932 LKPI_80211_LVIF_UNLOCK(lvif); 4933 return (lsta); 4934 } 4935 } 4936 LKPI_80211_LVIF_UNLOCK(lvif); 4937 4938 return (NULL); 4939 } 4940 4941 struct ieee80211_sta * 4942 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4943 { 4944 struct lkpi_vif *lvif; 4945 struct lkpi_sta *lsta, *temp; 4946 struct ieee80211_sta *sta; 4947 4948 lvif = VIF_TO_LVIF(vif); 4949 4950 LKPI_80211_LVIF_LOCK(lvif); 4951 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4952 sta = LSTA_TO_STA(lsta); 4953 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4954 LKPI_80211_LVIF_UNLOCK(lvif); 4955 return (sta); 4956 } 4957 } 4958 LKPI_80211_LVIF_UNLOCK(lvif); 4959 return (NULL); 4960 } 4961 4962 struct ieee80211_sta * 4963 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4964 const uint8_t *addr, const uint8_t *ourvifaddr) 4965 { 4966 struct lkpi_hw *lhw; 4967 struct lkpi_vif *lvif; 4968 struct lkpi_sta *lsta; 4969 struct ieee80211_vif *vif; 4970 struct ieee80211_sta *sta; 4971 4972 lhw = wiphy_priv(hw->wiphy); 4973 sta = NULL; 4974 4975 LKPI_80211_LHW_LVIF_LOCK(lhw); 4976 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4977 4978 /* XXX-BZ check our address from the vif. */ 4979 4980 vif = LVIF_TO_VIF(lvif); 4981 if (ourvifaddr != NULL && 4982 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4983 continue; 4984 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4985 if (sta != NULL) 4986 break; 4987 } 4988 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4989 4990 if (sta != NULL) { 4991 lsta = STA_TO_LSTA(sta); 4992 if (!lsta->added_to_drv) 4993 return (NULL); 4994 } 4995 4996 return (sta); 4997 } 4998 4999 struct sk_buff * 5000 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 5001 struct ieee80211_txq *txq) 5002 { 5003 struct lkpi_txq *ltxq; 5004 struct lkpi_vif *lvif; 5005 struct sk_buff *skb; 5006 5007 skb = NULL; 5008 ltxq = TXQ_TO_LTXQ(txq); 5009 ltxq->seen_dequeue = true; 5010 5011 if (ltxq->stopped) 5012 goto stopped; 5013 5014 lvif = VIF_TO_LVIF(ltxq->txq.vif); 5015 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 5016 ltxq->stopped = true; 5017 goto stopped; 5018 } 5019 5020 skb = skb_dequeue(<xq->skbq); 5021 5022 stopped: 5023 return (skb); 5024 } 5025 5026 void 5027 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 5028 unsigned long *frame_cnt, unsigned long *byte_cnt) 5029 { 5030 struct lkpi_txq *ltxq; 5031 struct sk_buff *skb; 5032 unsigned long fc, bc; 5033 5034 ltxq = TXQ_TO_LTXQ(txq); 5035 5036 fc = bc = 0; 5037 skb_queue_walk(<xq->skbq, skb) { 5038 fc++; 5039 bc += skb->len; 5040 } 5041 if (frame_cnt) 5042 *frame_cnt = fc; 5043 if (byte_cnt) 5044 *byte_cnt = bc; 5045 5046 /* Validate that this is doing the correct thing. */ 5047 /* Should we keep track on en/dequeue? */ 5048 IMPROVE(); 5049 } 5050 5051 /* 5052 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 5053 * The latter tries to derive the success status from the info flags 5054 * passed back from the driver. rawx_mit() saves the ni on the m and the 5055 * m on the skb for us to be able to give feedback to net80211. 5056 */ 5057 static void 5058 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5059 int status) 5060 { 5061 struct ieee80211_node *ni; 5062 struct mbuf *m; 5063 5064 m = skb->m; 5065 skb->m = NULL; 5066 5067 if (m != NULL) { 5068 ni = m->m_pkthdr.PH_loc.ptr; 5069 /* Status: 0 is ok, != 0 is error. */ 5070 ieee80211_tx_complete(ni, m, status); 5071 /* ni & mbuf were consumed. */ 5072 } 5073 } 5074 5075 void 5076 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 5077 int status) 5078 { 5079 5080 _lkpi_ieee80211_free_txskb(hw, skb, status); 5081 kfree_skb(skb); 5082 } 5083 5084 void 5085 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 5086 struct ieee80211_tx_status *txstat) 5087 { 5088 struct sk_buff *skb; 5089 struct ieee80211_tx_info *info; 5090 struct ieee80211_ratectl_tx_status txs; 5091 struct ieee80211_node *ni; 5092 int status; 5093 5094 skb = txstat->skb; 5095 if (skb->m != NULL) { 5096 struct mbuf *m; 5097 5098 m = skb->m; 5099 ni = m->m_pkthdr.PH_loc.ptr; 5100 memset(&txs, 0, sizeof(txs)); 5101 } else { 5102 ni = NULL; 5103 } 5104 5105 info = txstat->info; 5106 if (info->flags & IEEE80211_TX_STAT_ACK) { 5107 status = 0; /* No error. */ 5108 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 5109 } else { 5110 status = 1; 5111 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 5112 } 5113 5114 if (ni != NULL) { 5115 int ridx __unused; 5116 #ifdef LINUXKPI_DEBUG_80211 5117 int old_rate; 5118 5119 old_rate = ni->ni_vap->iv_bss->ni_txrate; 5120 #endif 5121 txs.pktlen = skb->len; 5122 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 5123 if (info->status.rates[0].count > 1) { 5124 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 5125 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 5126 } 5127 #if 0 /* Unused in net80211 currently. */ 5128 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 5129 txs.final_rate = info->status.rates[0].idx; 5130 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 5131 #endif 5132 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 5133 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 5134 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 5135 } 5136 5137 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 5138 ieee80211_ratectl_tx_complete(ni, &txs); 5139 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 5140 5141 #ifdef LINUXKPI_DEBUG_80211 5142 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 5143 printf("TX-RATE: %s: old %d new %d ridx %d, " 5144 "long_retries %d\n", __func__, 5145 old_rate, ni->ni_vap->iv_bss->ni_txrate, 5146 ridx, txs.long_retries); 5147 } 5148 #endif 5149 } 5150 5151 #ifdef LINUXKPI_DEBUG_80211 5152 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 5153 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 5154 "band %u hw_queue %u tx_time_est %d : " 5155 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 5156 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 5157 "tx_time %u flags %#x " 5158 "status_driver_data [ %p %p ]\n", 5159 __func__, hw, skb, status, info->flags, 5160 info->band, info->hw_queue, info->tx_time_est, 5161 info->status.rates[0].idx, info->status.rates[0].count, 5162 info->status.rates[0].flags, 5163 info->status.rates[1].idx, info->status.rates[1].count, 5164 info->status.rates[1].flags, 5165 info->status.rates[2].idx, info->status.rates[2].count, 5166 info->status.rates[2].flags, 5167 info->status.rates[3].idx, info->status.rates[3].count, 5168 info->status.rates[3].flags, 5169 info->status.ack_signal, info->status.ampdu_ack_len, 5170 info->status.ampdu_len, info->status.antenna, 5171 info->status.tx_time, info->status.flags, 5172 info->status.status_driver_data[0], 5173 info->status.status_driver_data[1]); 5174 #endif 5175 5176 if (txstat->free_list) { 5177 _lkpi_ieee80211_free_txskb(hw, skb, status); 5178 list_add_tail(&skb->list, txstat->free_list); 5179 } else { 5180 linuxkpi_ieee80211_free_txskb(hw, skb, status); 5181 } 5182 } 5183 5184 void 5185 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 5186 { 5187 struct ieee80211_tx_status status; 5188 5189 memset(&status, 0, sizeof(status)); 5190 status.info = IEEE80211_SKB_CB(skb); 5191 status.skb = skb; 5192 /* sta, n_rates, rates, free_list? */ 5193 5194 ieee80211_tx_status_ext(hw, &status); 5195 } 5196 5197 /* 5198 * This is an internal bandaid for the moment for the way we glue 5199 * skbs and mbufs together for TX. Once we have skbs backed by 5200 * mbufs this should go away. 5201 * This is a public function but kept on the private KPI (lkpi_) 5202 * and is not exposed by a header file. 5203 */ 5204 static void 5205 lkpi_ieee80211_free_skb_mbuf(void *p) 5206 { 5207 struct ieee80211_node *ni; 5208 struct mbuf *m; 5209 5210 if (p == NULL) 5211 return; 5212 5213 m = (struct mbuf *)p; 5214 M_ASSERTPKTHDR(m); 5215 5216 ni = m->m_pkthdr.PH_loc.ptr; 5217 m->m_pkthdr.PH_loc.ptr = NULL; 5218 if (ni != NULL) 5219 ieee80211_free_node(ni); 5220 m_freem(m); 5221 } 5222 5223 void 5224 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 5225 struct delayed_work *w, int delay) 5226 { 5227 struct lkpi_hw *lhw; 5228 5229 /* Need to make sure hw is in a stable (non-suspended) state. */ 5230 IMPROVE(); 5231 5232 lhw = HW_TO_LHW(hw); 5233 queue_delayed_work(lhw->workq, w, delay); 5234 } 5235 5236 void 5237 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 5238 struct work_struct *w) 5239 { 5240 struct lkpi_hw *lhw; 5241 5242 /* Need to make sure hw is in a stable (non-suspended) state. */ 5243 IMPROVE(); 5244 5245 lhw = HW_TO_LHW(hw); 5246 queue_work(lhw->workq, w); 5247 } 5248 5249 struct sk_buff * 5250 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 5251 uint8_t *ssid, size_t ssid_len, size_t tailroom) 5252 { 5253 struct sk_buff *skb; 5254 struct ieee80211_frame *wh; 5255 uint8_t *p; 5256 size_t len; 5257 5258 len = sizeof(*wh); 5259 len += 2 + ssid_len; 5260 5261 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 5262 if (skb == NULL) 5263 return (NULL); 5264 5265 skb_reserve(skb, hw->extra_tx_headroom); 5266 5267 wh = skb_put_zero(skb, sizeof(*wh)); 5268 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 5269 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 5270 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 5271 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 5272 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 5273 5274 p = skb_put(skb, 2 + ssid_len); 5275 *p++ = IEEE80211_ELEMID_SSID; 5276 *p++ = ssid_len; 5277 if (ssid_len > 0) 5278 memcpy(p, ssid, ssid_len); 5279 5280 return (skb); 5281 } 5282 5283 struct sk_buff * 5284 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 5285 struct ieee80211_vif *vif) 5286 { 5287 struct lkpi_vif *lvif; 5288 struct ieee80211vap *vap; 5289 struct sk_buff *skb; 5290 struct ieee80211_frame_pspoll *psp; 5291 uint16_t v; 5292 5293 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 5294 if (skb == NULL) 5295 return (NULL); 5296 5297 skb_reserve(skb, hw->extra_tx_headroom); 5298 5299 lvif = VIF_TO_LVIF(vif); 5300 vap = LVIF_TO_VAP(lvif); 5301 5302 psp = skb_put_zero(skb, sizeof(*psp)); 5303 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 5304 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 5305 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 5306 memcpy(&psp->i_aid, &v, sizeof(v)); 5307 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 5308 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 5309 5310 return (skb); 5311 } 5312 5313 struct sk_buff * 5314 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 5315 struct ieee80211_vif *vif, int linkid, bool qos) 5316 { 5317 struct lkpi_vif *lvif; 5318 struct ieee80211vap *vap; 5319 struct sk_buff *skb; 5320 struct ieee80211_frame *nullf; 5321 5322 IMPROVE("linkid"); 5323 5324 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 5325 if (skb == NULL) 5326 return (NULL); 5327 5328 skb_reserve(skb, hw->extra_tx_headroom); 5329 5330 lvif = VIF_TO_LVIF(vif); 5331 vap = LVIF_TO_VAP(lvif); 5332 5333 nullf = skb_put_zero(skb, sizeof(*nullf)); 5334 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 5335 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 5336 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 5337 5338 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 5339 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 5340 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 5341 5342 return (skb); 5343 } 5344 5345 struct wireless_dev * 5346 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 5347 { 5348 struct lkpi_vif *lvif; 5349 5350 lvif = VIF_TO_LVIF(vif); 5351 return (&lvif->wdev); 5352 } 5353 5354 void 5355 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 5356 { 5357 struct lkpi_vif *lvif; 5358 struct ieee80211vap *vap; 5359 enum ieee80211_state nstate; 5360 int arg; 5361 5362 lvif = VIF_TO_LVIF(vif); 5363 vap = LVIF_TO_VAP(lvif); 5364 5365 /* 5366 * Go to init; otherwise we need to elaborately check state and 5367 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 5368 * Let the statemachine handle all neccessary changes. 5369 */ 5370 nstate = IEEE80211_S_INIT; 5371 arg = 0; /* Not a valid reason. */ 5372 5373 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5374 vif, vap, ieee80211_state_name[vap->iv_state]); 5375 ieee80211_new_state(vap, nstate, arg); 5376 } 5377 5378 void 5379 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 5380 { 5381 struct lkpi_vif *lvif; 5382 struct ieee80211vap *vap; 5383 5384 lvif = VIF_TO_LVIF(vif); 5385 vap = LVIF_TO_VAP(lvif); 5386 5387 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 5388 vif, vap, ieee80211_state_name[vap->iv_state]); 5389 ieee80211_beacon_miss(vap->iv_ic); 5390 } 5391 5392 /* -------------------------------------------------------------------------- */ 5393 5394 void 5395 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 5396 { 5397 struct lkpi_hw *lhw; 5398 struct lkpi_vif *lvif; 5399 struct ieee80211_vif *vif; 5400 int ac_count, ac; 5401 5402 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5403 __func__, qnum, hw->queues, hw)); 5404 5405 lhw = wiphy_priv(hw->wiphy); 5406 5407 /* See lkpi_ic_vap_create(). */ 5408 if (hw->queues >= IEEE80211_NUM_ACS) 5409 ac_count = IEEE80211_NUM_ACS; 5410 else 5411 ac_count = 1; 5412 5413 LKPI_80211_LHW_LVIF_LOCK(lhw); 5414 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5415 5416 vif = LVIF_TO_VIF(lvif); 5417 for (ac = 0; ac < ac_count; ac++) { 5418 IMPROVE_TXQ("LOCKING"); 5419 if (qnum == vif->hw_queue[ac]) { 5420 #ifdef LINUXKPI_DEBUG_80211 5421 /* 5422 * For now log this to better understand 5423 * how this is supposed to work. 5424 */ 5425 if (lvif->hw_queue_stopped[ac] && 5426 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5427 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5428 "lvif %p vif %p ac %d qnum %d already " 5429 "stopped\n", __func__, __LINE__, 5430 lhw, hw, lvif, vif, ac, qnum); 5431 #endif 5432 lvif->hw_queue_stopped[ac] = true; 5433 } 5434 } 5435 } 5436 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5437 } 5438 5439 void 5440 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 5441 { 5442 int i; 5443 5444 IMPROVE_TXQ("Locking; do we need further info?"); 5445 for (i = 0; i < hw->queues; i++) 5446 linuxkpi_ieee80211_stop_queue(hw, i); 5447 } 5448 5449 5450 static void 5451 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 5452 { 5453 struct lkpi_hw *lhw; 5454 struct lkpi_vif *lvif; 5455 struct lkpi_sta *lsta; 5456 int ac_count, ac, tid; 5457 5458 /* See lkpi_ic_vap_create(). */ 5459 if (hw->queues >= IEEE80211_NUM_ACS) 5460 ac_count = IEEE80211_NUM_ACS; 5461 else 5462 ac_count = 1; 5463 5464 lhw = wiphy_priv(hw->wiphy); 5465 5466 IMPROVE_TXQ("Locking"); 5467 LKPI_80211_LHW_LVIF_LOCK(lhw); 5468 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5469 struct ieee80211_vif *vif; 5470 5471 vif = LVIF_TO_VIF(lvif); 5472 for (ac = 0; ac < ac_count; ac++) { 5473 5474 if (hwq == vif->hw_queue[ac]) { 5475 5476 /* XXX-BZ what about software scan? */ 5477 5478 #ifdef LINUXKPI_DEBUG_80211 5479 /* 5480 * For now log this to better understand 5481 * how this is supposed to work. 5482 */ 5483 if (!lvif->hw_queue_stopped[ac] && 5484 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5485 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5486 "lvif %p vif %p ac %d hw_q not stopped\n", 5487 __func__, __LINE__, 5488 lhw, hw, lvif, vif, ac); 5489 #endif 5490 lvif->hw_queue_stopped[ac] = false; 5491 5492 LKPI_80211_LVIF_LOCK(lvif); 5493 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 5494 struct ieee80211_sta *sta; 5495 5496 sta = LSTA_TO_STA(lsta); 5497 for (tid = 0; tid < nitems(sta->txq); tid++) { 5498 struct lkpi_txq *ltxq; 5499 5500 if (sta->txq[tid] == NULL) 5501 continue; 5502 5503 if (sta->txq[tid]->ac != ac) 5504 continue; 5505 5506 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 5507 if (!ltxq->stopped) 5508 continue; 5509 5510 ltxq->stopped = false; 5511 5512 /* XXX-BZ see when this explodes with all the locking. taskq? */ 5513 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 5514 } 5515 } 5516 LKPI_80211_LVIF_UNLOCK(lvif); 5517 } 5518 } 5519 } 5520 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5521 } 5522 5523 void 5524 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 5525 { 5526 int i; 5527 5528 IMPROVE_TXQ("Is this all/enough here?"); 5529 for (i = 0; i < hw->queues; i++) 5530 lkpi_ieee80211_wake_queues(hw, i); 5531 } 5532 5533 void 5534 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 5535 { 5536 5537 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5538 __func__, qnum, hw->queues, hw)); 5539 5540 lkpi_ieee80211_wake_queues(hw, qnum); 5541 } 5542 5543 /* This is just hardware queues. */ 5544 void 5545 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 5546 { 5547 struct lkpi_hw *lhw; 5548 5549 lhw = HW_TO_LHW(hw); 5550 5551 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 5552 IMPROVE_TXQ("LOCKING"); 5553 if (++lhw->txq_generation[ac] == 0) 5554 lhw->txq_generation[ac]++; 5555 } 5556 5557 struct ieee80211_txq * 5558 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 5559 { 5560 struct lkpi_hw *lhw; 5561 struct ieee80211_txq *txq; 5562 struct lkpi_txq *ltxq; 5563 5564 lhw = HW_TO_LHW(hw); 5565 txq = NULL; 5566 5567 IMPROVE_TXQ("LOCKING"); 5568 5569 /* Check that we are scheduled. */ 5570 if (lhw->txq_generation[ac] == 0) 5571 goto out; 5572 5573 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 5574 if (ltxq == NULL) 5575 goto out; 5576 if (ltxq->txq_generation == lhw->txq_generation[ac]) 5577 goto out; 5578 5579 ltxq->txq_generation = lhw->txq_generation[ac]; 5580 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 5581 txq = <xq->txq; 5582 TAILQ_ELEM_INIT(ltxq, txq_entry); 5583 5584 out: 5585 return (txq); 5586 } 5587 5588 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 5589 struct ieee80211_txq *txq, bool withoutpkts) 5590 { 5591 struct lkpi_hw *lhw; 5592 struct lkpi_txq *ltxq; 5593 5594 ltxq = TXQ_TO_LTXQ(txq); 5595 5596 IMPROVE_TXQ("LOCKING"); 5597 5598 /* Only schedule if work to do or asked to anyway. */ 5599 if (!withoutpkts && skb_queue_empty(<xq->skbq)) 5600 goto out; 5601 5602 /* Make sure we do not double-schedule. */ 5603 if (ltxq->txq_entry.tqe_next != NULL) 5604 goto out; 5605 5606 lhw = HW_TO_LHW(hw); 5607 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 5608 out: 5609 return; 5610 } 5611 5612 /* -------------------------------------------------------------------------- */ 5613 5614 struct lkpi_cfg80211_bss { 5615 u_int refcnt; 5616 struct cfg80211_bss bss; 5617 }; 5618 5619 struct lkpi_cfg80211_get_bss_iter_lookup { 5620 struct wiphy *wiphy; 5621 struct linuxkpi_ieee80211_channel *chan; 5622 const uint8_t *bssid; 5623 const uint8_t *ssid; 5624 size_t ssid_len; 5625 enum ieee80211_bss_type bss_type; 5626 enum ieee80211_privacy privacy; 5627 5628 /* 5629 * Something to store a copy of the result as the net80211 scan cache 5630 * is not refoucnted so a scan entry might go away any time. 5631 */ 5632 bool match; 5633 struct cfg80211_bss *bss; 5634 }; 5635 5636 static void 5637 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 5638 { 5639 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 5640 size_t ielen; 5641 5642 lookup = arg; 5643 5644 /* Do not try to find another match. */ 5645 if (lookup->match) 5646 return; 5647 5648 /* Nothing to store result. */ 5649 if (lookup->bss == NULL) 5650 return; 5651 5652 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 5653 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 5654 /* We have no idea what to compare to as the drivers only request ANY */ 5655 return; 5656 } 5657 5658 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 5659 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 5660 /* We have no idea what to compare to as the drivers only request ANY */ 5661 return; 5662 } 5663 5664 if (lookup->chan != NULL) { 5665 struct linuxkpi_ieee80211_channel *chan; 5666 5667 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 5668 se->se_chan->ic_freq); 5669 if (chan == NULL || chan != lookup->chan) 5670 return; 5671 } 5672 5673 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 5674 return; 5675 5676 if (lookup->ssid) { 5677 if (lookup->ssid_len != se->se_ssid[1] || 5678 se->se_ssid[1] == 0) 5679 return; 5680 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 5681 return; 5682 } 5683 5684 ielen = se->se_ies.len; 5685 5686 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 5687 M_LKPI80211, M_NOWAIT | M_ZERO); 5688 if (lookup->bss->ies == NULL) 5689 return; 5690 5691 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 5692 lookup->bss->ies->len = ielen; 5693 if (ielen) 5694 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 5695 5696 lookup->match = true; 5697 } 5698 5699 struct cfg80211_bss * 5700 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 5701 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 5702 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 5703 { 5704 struct lkpi_cfg80211_bss *lbss; 5705 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 5706 struct lkpi_hw *lhw; 5707 struct ieee80211vap *vap; 5708 5709 lhw = wiphy_priv(wiphy); 5710 5711 /* Let's hope we can alloc. */ 5712 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 5713 if (lbss == NULL) { 5714 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 5715 return (NULL); 5716 } 5717 5718 lookup.wiphy = wiphy; 5719 lookup.chan = chan; 5720 lookup.bssid = bssid; 5721 lookup.ssid = ssid; 5722 lookup.ssid_len = ssid_len; 5723 lookup.bss_type = bss_type; 5724 lookup.privacy = privacy; 5725 lookup.match = false; 5726 lookup.bss = &lbss->bss; 5727 5728 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 5729 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 5730 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 5731 if (!lookup.match) { 5732 free(lbss, M_LKPI80211); 5733 return (NULL); 5734 } 5735 5736 refcount_init(&lbss->refcnt, 1); 5737 return (&lbss->bss); 5738 } 5739 5740 void 5741 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 5742 { 5743 struct lkpi_cfg80211_bss *lbss; 5744 5745 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 5746 5747 /* Free everything again on refcount ... */ 5748 if (refcount_release(&lbss->refcnt)) { 5749 free(lbss->bss.ies, M_LKPI80211); 5750 free(lbss, M_LKPI80211); 5751 } 5752 } 5753 5754 void 5755 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 5756 { 5757 struct lkpi_hw *lhw; 5758 struct ieee80211com *ic; 5759 struct ieee80211vap *vap; 5760 5761 lhw = wiphy_priv(wiphy); 5762 ic = lhw->ic; 5763 5764 /* 5765 * If we haven't called ieee80211_ifattach() yet 5766 * or there is no VAP, there are no scans to flush. 5767 */ 5768 if (ic == NULL || 5769 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 5770 return; 5771 5772 /* Should only happen on the current one? Not seen it late enough. */ 5773 IEEE80211_LOCK(ic); 5774 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 5775 ieee80211_scan_flush(vap); 5776 IEEE80211_UNLOCK(ic); 5777 } 5778 5779 /* -------------------------------------------------------------------------- */ 5780 5781 MODULE_VERSION(linuxkpi_wlan, 1); 5782 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 5783 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 5784