1 /*- 2 * Copyright (c) 2020-2023 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/cdefs.h> 43 #include <sys/param.h> 44 #include <sys/types.h> 45 #include <sys/kernel.h> 46 #include <sys/errno.h> 47 #include <sys/malloc.h> 48 #include <sys/module.h> 49 #include <sys/mutex.h> 50 #include <sys/socket.h> 51 #include <sys/sysctl.h> 52 #include <sys/queue.h> 53 #include <sys/taskqueue.h> 54 #include <sys/libkern.h> 55 56 #include <net/if.h> 57 #include <net/if_var.h> 58 #include <net/if_media.h> 59 #include <net/ethernet.h> 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_proto.h> 63 #include <net80211/ieee80211_ratectl.h> 64 #include <net80211/ieee80211_radiotap.h> 65 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 75 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 76 77 /* XXX-BZ really want this and others in queue.h */ 78 #define TAILQ_ELEM_INIT(elm, field) do { \ 79 (elm)->field.tqe_next = NULL; \ 80 (elm)->field.tqe_prev = NULL; \ 81 } while (0) 82 83 /* -------------------------------------------------------------------------- */ 84 85 /* Keep public for as long as header files are using it too. */ 86 int linuxkpi_debug_80211; 87 88 #ifdef LINUXKPI_DEBUG_80211 89 SYSCTL_DECL(_compat_linuxkpi); 90 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 91 "LinuxKPI 802.11 compatibility layer"); 92 93 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 94 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 95 96 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 97 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 98 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 99 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 100 #else 101 #define UNIMPLEMENTED do { } while (0) 102 #define TRACEOK() do { } while (0) 103 #endif 104 105 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 106 #ifndef PREP_TX_INFO_DURATION 107 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 108 #endif 109 110 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 111 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 112 113 /* IEEE 802.11-05/0257r1 */ 114 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 115 116 const uint8_t tid_to_mac80211_ac[] = { 117 IEEE80211_AC_BE, 118 IEEE80211_AC_BK, 119 IEEE80211_AC_BK, 120 IEEE80211_AC_BE, 121 IEEE80211_AC_VI, 122 IEEE80211_AC_VI, 123 IEEE80211_AC_VO, 124 IEEE80211_AC_VO, 125 #if 0 126 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 127 #endif 128 }; 129 130 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 131 /* 132 * XXX TODO need a "glue layer" to link cfg80211 ops to 133 * mac80211 and to the driver or net80211. 134 * Can we pass some on 1:1? Need to compare the (*f)(). 135 */ 136 }; 137 138 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 139 struct ieee80211_node *); 140 static void lkpi_80211_txq_task(void *, int); 141 static void lkpi_ieee80211_free_skb_mbuf(void *); 142 #ifdef LKPI_80211_WME 143 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 144 #endif 145 146 static void 147 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 148 const char *_f, int _l) 149 { 150 151 #ifdef LINUXKPI_DEBUG_80211 152 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 153 return; 154 if (lsta == NULL) 155 return; 156 157 printf("%s:%d lsta %p ni %p sta %p\n", 158 _f, _l, lsta, ni, &lsta->sta); 159 if (ni != NULL) 160 ieee80211_dump_node(NULL, ni); 161 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 162 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 163 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 164 #endif 165 } 166 167 static void 168 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 169 { 170 struct ieee80211_node *ni; 171 172 IMPROVE("XXX-BZ remove tqe_prev check once ni-sta-state-sync is fixed"); 173 174 ni = lsta->ni; 175 176 LKPI_80211_LVIF_LOCK(lvif); 177 if (lsta->lsta_entry.tqe_prev != NULL) 178 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 179 LKPI_80211_LVIF_UNLOCK(lvif); 180 181 lsta->ni = NULL; 182 ni->ni_drv_data = NULL; 183 if (ni != NULL) 184 ieee80211_free_node(ni); 185 186 IMPROVE("more from lkpi_ic_node_free() should happen here."); 187 188 free(lsta, M_LKPI80211); 189 } 190 191 static struct lkpi_sta * 192 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 193 struct ieee80211_hw *hw, struct ieee80211_node *ni) 194 { 195 struct lkpi_sta *lsta; 196 struct lkpi_vif *lvif; 197 struct ieee80211_vif *vif; 198 struct ieee80211_sta *sta; 199 int band, i, tid; 200 201 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 202 M_NOWAIT | M_ZERO); 203 if (lsta == NULL) 204 return (NULL); 205 206 lsta->added_to_drv = false; 207 lsta->state = IEEE80211_STA_NOTEXIST; 208 #if 0 209 /* 210 * This needs to be done in node_init() as ieee80211_alloc_node() 211 * will initialise the refcount after us. 212 */ 213 lsta->ni = ieee80211_ref_node(ni); 214 #endif 215 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 216 ni->ni_drv_data = lsta; 217 218 lvif = VAP_TO_LVIF(vap); 219 vif = LVIF_TO_VIF(lvif); 220 sta = LSTA_TO_STA(lsta); 221 222 IEEE80211_ADDR_COPY(sta->addr, mac); 223 224 /* TXQ */ 225 for (tid = 0; tid < nitems(sta->txq); tid++) { 226 struct lkpi_txq *ltxq; 227 228 /* We are not limiting ourselves to hw.queues here. */ 229 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 230 M_LKPI80211, M_NOWAIT | M_ZERO); 231 if (ltxq == NULL) 232 goto cleanup; 233 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 234 if (tid == IEEE80211_NUM_TIDS) { 235 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 236 free(ltxq, M_LKPI80211); 237 continue; 238 } 239 IMPROVE("AP/if we support non-STA here too"); 240 ltxq->txq.ac = IEEE80211_AC_VO; 241 } else { 242 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 243 } 244 ltxq->seen_dequeue = false; 245 ltxq->stopped = false; 246 ltxq->txq.vif = vif; 247 ltxq->txq.tid = tid; 248 ltxq->txq.sta = sta; 249 TAILQ_ELEM_INIT(ltxq, txq_entry); 250 skb_queue_head_init(<xq->skbq); 251 sta->txq[tid] = <xq->txq; 252 } 253 254 /* Deflink information. */ 255 for (band = 0; band < NUM_NL80211_BANDS; band++) { 256 struct ieee80211_supported_band *supband; 257 258 supband = hw->wiphy->bands[band]; 259 if (supband == NULL) 260 continue; 261 262 for (i = 0; i < supband->n_bitrates; i++) { 263 264 IMPROVE("Further supband->bitrates[i]* checks?"); 265 /* or should we get them from the ni? */ 266 sta->deflink.supp_rates[band] |= BIT(i); 267 } 268 } 269 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 270 IMPROVE("ht, vht, he, ... bandwidth, smps_mode, .."); 271 /* bandwidth = IEEE80211_STA_RX_... */ 272 273 /* Link configuration. */ 274 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 275 sta->link[0] = &sta->deflink; 276 for (i = 1; i < nitems(sta->link); i++) { 277 IMPROVE("more links; only link[0] = deflink currently."); 278 } 279 280 /* Deferred TX path. */ 281 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 282 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 283 mbufq_init(&lsta->txq, IFQ_MAXLEN); 284 285 return (lsta); 286 287 cleanup: 288 for (; tid >= 0; tid--) 289 free(sta->txq[tid], M_LKPI80211); 290 free(lsta, M_LKPI80211); 291 return (NULL); 292 } 293 294 static enum nl80211_band 295 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 296 { 297 298 if (IEEE80211_IS_CHAN_2GHZ(c)) 299 return (NL80211_BAND_2GHZ); 300 else if (IEEE80211_IS_CHAN_5GHZ(c)) 301 return (NL80211_BAND_5GHZ); 302 #ifdef __notyet__ 303 else if () 304 return (NL80211_BAND_6GHZ); 305 else if () 306 return (NL80211_BAND_60GHZ); 307 else if (IEEE80211_IS_CHAN_GSM(c)) 308 return (NL80211_BAND_XXX); 309 #endif 310 else 311 panic("%s: unsupported band. c %p flags %#x\n", 312 __func__, c, c->ic_flags); 313 } 314 315 static uint32_t 316 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 317 { 318 319 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 320 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 321 switch (band) { 322 case NL80211_BAND_2GHZ: 323 return (IEEE80211_CHAN_2GHZ); 324 break; 325 case NL80211_BAND_5GHZ: 326 return (IEEE80211_CHAN_5GHZ); 327 break; 328 case NL80211_BAND_60GHZ: 329 break; 330 case NL80211_BAND_6GHZ: 331 break; 332 default: 333 panic("%s: unsupported band %u\n", __func__, band); 334 break; 335 } 336 337 IMPROVE(); 338 return (0x00); 339 } 340 341 #if 0 342 static enum ieee80211_ac_numbers 343 lkpi_ac_net_to_l80211(int ac) 344 { 345 346 switch (ac) { 347 case WME_AC_VO: 348 return (IEEE80211_AC_VO); 349 case WME_AC_VI: 350 return (IEEE80211_AC_VI); 351 case WME_AC_BE: 352 return (IEEE80211_AC_BE); 353 case WME_AC_BK: 354 return (IEEE80211_AC_BK); 355 default: 356 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 357 return (IEEE80211_AC_BE); 358 } 359 } 360 #endif 361 362 static enum nl80211_iftype 363 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 364 { 365 366 switch (opmode) { 367 case IEEE80211_M_IBSS: 368 return (NL80211_IFTYPE_ADHOC); 369 break; 370 case IEEE80211_M_STA: 371 return (NL80211_IFTYPE_STATION); 372 break; 373 case IEEE80211_M_WDS: 374 return (NL80211_IFTYPE_WDS); 375 break; 376 case IEEE80211_M_HOSTAP: 377 return (NL80211_IFTYPE_AP); 378 break; 379 case IEEE80211_M_MONITOR: 380 return (NL80211_IFTYPE_MONITOR); 381 break; 382 case IEEE80211_M_MBSS: 383 return (NL80211_IFTYPE_MESH_POINT); 384 break; 385 case IEEE80211_M_AHDEMO: 386 /* FALLTHROUGH */ 387 default: 388 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 389 /* FALLTHROUGH */ 390 } 391 return (NL80211_IFTYPE_UNSPECIFIED); 392 } 393 394 #ifdef LKPI_80211_HW_CRYPTO 395 static uint32_t 396 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 397 { 398 399 switch (wlan_cipher_suite) { 400 case WLAN_CIPHER_SUITE_WEP40: 401 return (IEEE80211_CRYPTO_WEP); 402 case WLAN_CIPHER_SUITE_TKIP: 403 return (IEEE80211_CRYPTO_TKIP); 404 case WLAN_CIPHER_SUITE_CCMP: 405 return (IEEE80211_CIPHER_AES_CCM); 406 case WLAN_CIPHER_SUITE_WEP104: 407 return (IEEE80211_CRYPTO_WEP); 408 case WLAN_CIPHER_SUITE_AES_CMAC: 409 case WLAN_CIPHER_SUITE_GCMP: 410 case WLAN_CIPHER_SUITE_GCMP_256: 411 case WLAN_CIPHER_SUITE_CCMP_256: 412 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 414 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 415 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 416 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 417 break; 418 default: 419 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 420 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 421 } 422 423 return (0); 424 } 425 426 static uint32_t 427 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 428 { 429 430 switch (cipher) { 431 case IEEE80211_CIPHER_TKIP: 432 return (WLAN_CIPHER_SUITE_TKIP); 433 case IEEE80211_CIPHER_AES_CCM: 434 return (WLAN_CIPHER_SUITE_CCMP); 435 case IEEE80211_CIPHER_WEP: 436 if (keylen < 8) 437 return (WLAN_CIPHER_SUITE_WEP40); 438 else 439 return (WLAN_CIPHER_SUITE_WEP104); 440 break; 441 case IEEE80211_CIPHER_AES_OCB: 442 case IEEE80211_CIPHER_TKIPMIC: 443 case IEEE80211_CIPHER_CKIP: 444 case IEEE80211_CIPHER_NONE: 445 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 446 break; 447 default: 448 printf("%s: unknown cipher %#010x\n", __func__, cipher); 449 }; 450 return (0); 451 } 452 #endif 453 454 #ifdef __notyet__ 455 static enum ieee80211_sta_state 456 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 457 { 458 459 /* 460 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 461 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 462 */ 463 switch (state) { 464 case IEEE80211_S_INIT: 465 return (IEEE80211_STA_NOTEXIST); 466 case IEEE80211_S_SCAN: 467 return (IEEE80211_STA_NONE); 468 case IEEE80211_S_AUTH: 469 return (IEEE80211_STA_AUTH); 470 case IEEE80211_S_ASSOC: 471 return (IEEE80211_STA_ASSOC); 472 case IEEE80211_S_RUN: 473 return (IEEE80211_STA_AUTHORIZED); 474 case IEEE80211_S_CAC: 475 case IEEE80211_S_CSA: 476 case IEEE80211_S_SLEEP: 477 default: 478 UNIMPLEMENTED; 479 }; 480 481 return (IEEE80211_STA_NOTEXIST); 482 } 483 #endif 484 485 static struct linuxkpi_ieee80211_channel * 486 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 487 struct ieee80211_channel *c) 488 { 489 struct ieee80211_hw *hw; 490 struct linuxkpi_ieee80211_channel *channels; 491 enum nl80211_band band; 492 int i, nchans; 493 494 hw = LHW_TO_HW(lhw); 495 band = lkpi_net80211_chan_to_nl80211_band(c); 496 if (hw->wiphy->bands[band] == NULL) 497 return (NULL); 498 499 nchans = hw->wiphy->bands[band]->n_channels; 500 if (nchans <= 0) 501 return (NULL); 502 503 channels = hw->wiphy->bands[band]->channels; 504 for (i = 0; i < nchans; i++) { 505 if (channels[i].hw_value == c->ic_ieee) 506 return (&channels[i]); 507 } 508 509 return (NULL); 510 } 511 512 static struct linuxkpi_ieee80211_channel * 513 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 514 { 515 struct linuxkpi_ieee80211_channel *chan; 516 struct ieee80211_channel *c; 517 struct lkpi_hw *lhw; 518 519 chan = NULL; 520 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 521 c = ni->ni_chan; 522 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 523 c = ic->ic_bsschan; 524 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 525 c = ic->ic_curchan; 526 else 527 c = NULL; 528 529 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 530 lhw = ic->ic_softc; 531 chan = lkpi_find_lkpi80211_chan(lhw, c); 532 } 533 534 return (chan); 535 } 536 537 struct linuxkpi_ieee80211_channel * 538 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 539 { 540 enum nl80211_band band; 541 542 for (band = 0; band < NUM_NL80211_BANDS; band++) { 543 struct ieee80211_supported_band *supband; 544 struct linuxkpi_ieee80211_channel *channels; 545 int i; 546 547 supband = wiphy->bands[band]; 548 if (supband == NULL || supband->n_channels == 0) 549 continue; 550 551 channels = supband->channels; 552 for (i = 0; i < supband->n_channels; i++) { 553 if (channels[i].center_freq == freq) 554 return (&channels[i]); 555 } 556 } 557 558 return (NULL); 559 } 560 561 #ifdef LKPI_80211_HW_CRYPTO 562 static int 563 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 564 enum set_key_cmd cmd) 565 { 566 struct ieee80211com *ic; 567 struct lkpi_hw *lhw; 568 struct ieee80211_hw *hw; 569 struct lkpi_vif *lvif; 570 struct ieee80211_vif *vif; 571 struct ieee80211_sta *sta; 572 struct ieee80211_node *ni; 573 struct ieee80211_key_conf *kc; 574 int error; 575 576 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 577 578 ic = vap->iv_ic; 579 lhw = ic->ic_softc; 580 hw = LHW_TO_HW(lhw); 581 lvif = VAP_TO_LVIF(vap); 582 vif = LVIF_TO_VIF(lvif); 583 584 memset(&kc, 0, sizeof(kc)); 585 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 586 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 587 k->wk_cipher->ic_cipher, k->wk_keylen); 588 kc->keyidx = k->wk_keyix; 589 #if 0 590 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 591 #endif 592 atomic64_set(&kc->tx_pn, k->wk_keytsc); 593 kc->keylen = k->wk_keylen; 594 memcpy(kc->key, k->wk_key, k->wk_keylen); 595 596 switch (kc->cipher) { 597 case WLAN_CIPHER_SUITE_CCMP: 598 kc->iv_len = k->wk_cipher->ic_header; 599 kc->icv_len = k->wk_cipher->ic_trailer; 600 break; 601 case WLAN_CIPHER_SUITE_TKIP: 602 default: 603 IMPROVE(); 604 return (0); 605 }; 606 607 ni = vap->iv_bss; 608 sta = ieee80211_find_sta(vif, ni->ni_bssid); 609 if (sta != NULL) { 610 struct lkpi_sta *lsta; 611 612 lsta = STA_TO_LSTA(sta); 613 lsta->kc = kc; 614 } 615 616 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 617 if (error != 0) { 618 /* XXX-BZ leaking kc currently */ 619 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 620 return (0); 621 } else { 622 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 623 "flags %#10x\n", __func__, 624 kc->keyidx, kc->hw_key_idx, kc->flags); 625 return (1); 626 } 627 } 628 629 static int 630 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 631 { 632 633 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 634 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 635 } 636 static int 637 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 638 { 639 640 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 641 } 642 #endif 643 644 static u_int 645 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 646 { 647 struct netdev_hw_addr_list *mc_list; 648 struct netdev_hw_addr *addr; 649 650 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 651 __func__, arg, sdl, cnt)); 652 653 mc_list = arg; 654 /* If it is on the list already skip it. */ 655 netdev_hw_addr_list_for_each(addr, mc_list) { 656 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 657 return (0); 658 } 659 660 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 661 if (addr == NULL) 662 return (0); 663 664 INIT_LIST_HEAD(&addr->addr_list); 665 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 666 /* XXX this should be a netdev function? */ 667 list_add(&addr->addr_list, &mc_list->addr_list); 668 mc_list->count++; 669 670 #ifdef LINUXKPI_DEBUG_80211 671 if (linuxkpi_debug_80211 & D80211_TRACE) 672 printf("%s:%d: mc_list count %d: added %6D\n", 673 __func__, __LINE__, mc_list->count, addr->addr, ":"); 674 #endif 675 676 return (1); 677 } 678 679 static void 680 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 681 { 682 struct lkpi_hw *lhw; 683 struct ieee80211_hw *hw; 684 struct netdev_hw_addr_list mc_list; 685 struct list_head *le, *next; 686 struct netdev_hw_addr *addr; 687 struct ieee80211vap *vap; 688 u64 mc; 689 unsigned int changed_flags, total_flags; 690 691 lhw = ic->ic_softc; 692 693 if (lhw->ops->prepare_multicast == NULL || 694 lhw->ops->configure_filter == NULL) 695 return; 696 697 if (!lhw->update_mc && !force) 698 return; 699 700 changed_flags = total_flags = 0; 701 mc_list.count = 0; 702 INIT_LIST_HEAD(&mc_list.addr_list); 703 if (ic->ic_allmulti == 0) { 704 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 705 if_foreach_llmaddr(vap->iv_ifp, 706 lkpi_ic_update_mcast_copy, &mc_list); 707 } else { 708 changed_flags |= FIF_ALLMULTI; 709 } 710 711 hw = LHW_TO_HW(lhw); 712 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 713 /* 714 * XXX-BZ make sure to get this sorted what is a change, 715 * what gets all set; what was already set? 716 */ 717 total_flags = changed_flags; 718 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 719 720 #ifdef LINUXKPI_DEBUG_80211 721 if (linuxkpi_debug_80211 & D80211_TRACE) 722 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 723 __func__, changed_flags, mc_list.count, total_flags); 724 #endif 725 726 if (mc_list.count != 0) { 727 list_for_each_safe(le, next, &mc_list.addr_list) { 728 addr = list_entry(le, struct netdev_hw_addr, addr_list); 729 free(addr, M_LKPI80211); 730 mc_list.count--; 731 } 732 } 733 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 734 __func__, &mc_list, mc_list.count)); 735 } 736 737 static enum ieee80211_bss_changed 738 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 739 struct ieee80211vap *vap, const char *_f, int _l) 740 { 741 enum ieee80211_bss_changed bss_changed; 742 743 bss_changed = 0; 744 745 #ifdef LINUXKPI_DEBUG_80211 746 if (linuxkpi_debug_80211 & D80211_TRACE) 747 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 748 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 749 "sync_device_ts %u bss_changed %#08x\n", 750 __func__, __LINE__, _f, _l, 751 vif->cfg.assoc, vif->cfg.aid, 752 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 753 vif->bss_conf.sync_dtim_count, 754 (uintmax_t)vif->bss_conf.sync_tsf, 755 vif->bss_conf.sync_device_ts, 756 bss_changed); 757 #endif 758 759 if (vif->bss_conf.beacon_int != ni->ni_intval) { 760 vif->bss_conf.beacon_int = ni->ni_intval; 761 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 762 if (vif->bss_conf.beacon_int < 16) 763 vif->bss_conf.beacon_int = 16; 764 bss_changed |= BSS_CHANGED_BEACON_INT; 765 } 766 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 767 vap->iv_dtim_period > 0) { 768 vif->bss_conf.dtim_period = vap->iv_dtim_period; 769 bss_changed |= BSS_CHANGED_BEACON_INFO; 770 } 771 772 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 773 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 774 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 775 776 #ifdef LINUXKPI_DEBUG_80211 777 if (linuxkpi_debug_80211 & D80211_TRACE) 778 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 779 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 780 "sync_device_ts %u bss_changed %#08x\n", 781 __func__, __LINE__, _f, _l, 782 vif->cfg.assoc, vif->cfg.aid, 783 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 784 vif->bss_conf.sync_dtim_count, 785 (uintmax_t)vif->bss_conf.sync_tsf, 786 vif->bss_conf.sync_device_ts, 787 bss_changed); 788 #endif 789 790 return (bss_changed); 791 } 792 793 static void 794 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 795 { 796 struct ieee80211_hw *hw; 797 int error; 798 bool cancel; 799 800 LKPI_80211_LHW_SCAN_LOCK(lhw); 801 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 802 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 803 if (!cancel) 804 return; 805 806 hw = LHW_TO_HW(lhw); 807 808 IEEE80211_UNLOCK(lhw->ic); 809 LKPI_80211_LHW_LOCK(lhw); 810 /* Need to cancel the scan. */ 811 lkpi_80211_mo_cancel_hw_scan(hw, vif); 812 LKPI_80211_LHW_UNLOCK(lhw); 813 814 /* Need to make sure we see ieee80211_scan_completed. */ 815 LKPI_80211_LHW_SCAN_LOCK(lhw); 816 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 817 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 818 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 819 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 820 821 IEEE80211_LOCK(lhw->ic); 822 823 if (cancel) 824 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 825 __func__, error, lhw, vif); 826 } 827 828 static void 829 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 830 { 831 struct lkpi_hw *lhw; 832 int error; 833 bool old; 834 835 old = hw->conf.flags & IEEE80211_CONF_IDLE; 836 if (old == new) 837 return; 838 839 hw->conf.flags ^= IEEE80211_CONF_IDLE; 840 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 841 if (error != 0 && error != EOPNOTSUPP) { 842 lhw = HW_TO_LHW(hw); 843 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 844 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 845 } 846 } 847 848 static void 849 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 850 struct lkpi_hw *lhw) 851 { 852 sta->aid = 0; 853 if (vif->cfg.assoc) { 854 struct ieee80211_hw *hw; 855 enum ieee80211_bss_changed changed; 856 857 lhw->update_mc = true; 858 lkpi_update_mcast_filter(lhw->ic, true); 859 860 changed = 0; 861 vif->cfg.assoc = false; 862 vif->cfg.aid = 0; 863 changed |= BSS_CHANGED_ASSOC; 864 /* 865 * This will remove the sta from firmware for iwlwifi. 866 * So confusing that they use state and flags and ... ^%$%#%$^. 867 */ 868 IMPROVE(); 869 hw = LHW_TO_HW(lhw); 870 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 871 changed); 872 873 lkpi_hw_conf_idle(hw, true); 874 } 875 } 876 877 static void 878 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 879 bool dequeue_seen, bool no_emptyq) 880 { 881 struct lkpi_txq *ltxq; 882 int tid; 883 884 /* Wake up all queues to know they are allocated in the driver. */ 885 for (tid = 0; tid < nitems(sta->txq); tid++) { 886 887 if (tid == IEEE80211_NUM_TIDS) { 888 IMPROVE("station specific?"); 889 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 890 continue; 891 } else if (tid >= hw->queues) 892 continue; 893 894 if (sta->txq[tid] == NULL) 895 continue; 896 897 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 898 if (dequeue_seen && !ltxq->seen_dequeue) 899 continue; 900 901 if (no_emptyq && skb_queue_empty(<xq->skbq)) 902 continue; 903 904 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 905 } 906 } 907 908 /* -------------------------------------------------------------------------- */ 909 910 static int 911 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 912 { 913 914 return (0); 915 } 916 917 /* lkpi_iv_newstate() handles the stop scan case generally. */ 918 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 919 920 static int 921 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 922 { 923 struct linuxkpi_ieee80211_channel *chan; 924 struct ieee80211_chanctx_conf *conf; 925 struct lkpi_hw *lhw; 926 struct ieee80211_hw *hw; 927 struct lkpi_vif *lvif; 928 struct ieee80211_vif *vif; 929 struct ieee80211_node *ni; 930 struct lkpi_sta *lsta; 931 enum ieee80211_bss_changed bss_changed; 932 struct ieee80211_prep_tx_info prep_tx_info; 933 uint32_t changed; 934 int error; 935 936 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 937 if (chan == NULL) { 938 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 939 return (ESRCH); 940 } 941 942 lhw = vap->iv_ic->ic_softc; 943 hw = LHW_TO_HW(lhw); 944 lvif = VAP_TO_LVIF(vap); 945 vif = LVIF_TO_VIF(lvif); 946 947 ni = ieee80211_ref_node(vap->iv_bss); 948 949 IEEE80211_UNLOCK(vap->iv_ic); 950 LKPI_80211_LHW_LOCK(lhw); 951 952 /* Add chanctx (or if exists, change it). */ 953 if (vif->chanctx_conf != NULL) { 954 conf = vif->chanctx_conf; 955 IMPROVE("diff changes for changed, working on live copy, rcu"); 956 } else { 957 /* Keep separate alloc as in Linux this is rcu managed? */ 958 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 959 M_LKPI80211, M_WAITOK | M_ZERO); 960 } 961 962 conf->rx_chains_dynamic = 1; 963 conf->rx_chains_static = 1; 964 conf->radar_enabled = 965 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 966 conf->def.chan = chan; 967 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 968 conf->def.center_freq1 = chan->center_freq; 969 conf->def.center_freq2 = 0; 970 /* Responder ... */ 971 conf->min_def.chan = chan; 972 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 973 conf->min_def.center_freq1 = chan->center_freq; 974 conf->min_def.center_freq2 = 0; 975 IMPROVE("currently 20_NOHT only"); 976 977 /* Set bss info (bss_info_changed). */ 978 bss_changed = 0; 979 vif->bss_conf.bssid = ni->ni_bssid; 980 bss_changed |= BSS_CHANGED_BSSID; 981 vif->bss_conf.txpower = ni->ni_txpower; 982 bss_changed |= BSS_CHANGED_TXPOWER; 983 vif->cfg.idle = false; 984 bss_changed |= BSS_CHANGED_IDLE; 985 986 /* vif->bss_conf.basic_rates ? Where exactly? */ 987 988 /* Should almost assert it is this. */ 989 vif->cfg.assoc = false; 990 vif->cfg.aid = 0; 991 992 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 993 994 error = 0; 995 if (vif->chanctx_conf != NULL) { 996 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 997 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 998 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 999 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 1000 lkpi_80211_mo_change_chanctx(hw, conf, changed); 1001 } else { 1002 error = lkpi_80211_mo_add_chanctx(hw, conf); 1003 if (error == 0 || error == EOPNOTSUPP) { 1004 vif->bss_conf.chandef.chan = conf->def.chan; 1005 vif->bss_conf.chandef.width = conf->def.width; 1006 vif->bss_conf.chandef.center_freq1 = 1007 conf->def.center_freq1; 1008 vif->bss_conf.chandef.center_freq2 = 1009 conf->def.center_freq2; 1010 } else { 1011 goto out; 1012 } 1013 1014 vif->bss_conf.chanctx_conf = conf; 1015 1016 /* Assign vif chanctx. */ 1017 if (error == 0) 1018 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1019 &vif->bss_conf, conf); 1020 if (error == EOPNOTSUPP) 1021 error = 0; 1022 if (error != 0) { 1023 lkpi_80211_mo_remove_chanctx(hw, conf); 1024 free(conf, M_LKPI80211); 1025 goto out; 1026 } 1027 } 1028 IMPROVE("update radiotap chan fields too"); 1029 1030 /* RATES */ 1031 IMPROVE("bss info: not all needs to come now and rates are missing"); 1032 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1033 1034 /* 1035 * This is a bandaid for now. If we went through (*iv_update_bss)() 1036 * and then removed the lsta we end up here without a lsta and have 1037 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1038 * would normally do. 1039 * XXX-BZ I do not like this but currently we have no good way of 1040 * intercepting the bss swap and state changes and packets going out 1041 * workflow so live with this. It is a compat layer after all. 1042 */ 1043 if (ni->ni_drv_data == NULL) { 1044 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1045 if (lsta == NULL) { 1046 error = ENOMEM; 1047 goto out; 1048 } 1049 lsta->ni = ieee80211_ref_node(ni); 1050 } else { 1051 lsta = ni->ni_drv_data; 1052 } 1053 1054 /* Insert the [l]sta into the list of known stations. */ 1055 LKPI_80211_LVIF_LOCK(lvif); 1056 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1057 LKPI_80211_LVIF_UNLOCK(lvif); 1058 1059 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1060 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1061 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1062 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1063 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1064 if (error != 0) { 1065 IMPROVE("do we need to undo the chan ctx?"); 1066 goto out; 1067 } 1068 #if 0 1069 lsta->added_to_drv = true; /* mo manages. */ 1070 #endif 1071 1072 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1073 1074 /* 1075 * Wakeup all queues now that sta is there so we have as much time to 1076 * possibly prepare the queue in the driver to be ready for the 1st 1077 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1078 * is no guarantee or way to check. 1079 * XXX-BZ and by now we know that this does not work on all drivers 1080 * for all queues. 1081 */ 1082 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1083 1084 /* Start mgd_prepare_tx. */ 1085 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1086 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1087 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1088 lsta->in_mgd = true; 1089 1090 /* 1091 * What is going to happen next: 1092 * - <twiddle> .. we should end up in "auth_to_assoc" 1093 * - event_callback 1094 * - update sta_state (NONE to AUTH) 1095 * - mgd_complete_tx 1096 * (ideally we'd do that on a callback for something else ...) 1097 */ 1098 1099 out: 1100 LKPI_80211_LHW_UNLOCK(lhw); 1101 IEEE80211_LOCK(vap->iv_ic); 1102 if (ni != NULL) 1103 ieee80211_free_node(ni); 1104 return (error); 1105 } 1106 1107 static int 1108 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1109 { 1110 struct lkpi_hw *lhw; 1111 struct ieee80211_hw *hw; 1112 struct lkpi_vif *lvif; 1113 struct ieee80211_vif *vif; 1114 struct ieee80211_node *ni; 1115 struct lkpi_sta *lsta; 1116 struct ieee80211_sta *sta; 1117 struct ieee80211_prep_tx_info prep_tx_info; 1118 int error; 1119 1120 lhw = vap->iv_ic->ic_softc; 1121 hw = LHW_TO_HW(lhw); 1122 lvif = VAP_TO_LVIF(vap); 1123 vif = LVIF_TO_VIF(lvif); 1124 1125 /* Keep ni around. */ 1126 ni = ieee80211_ref_node(vap->iv_bss); 1127 lsta = ni->ni_drv_data; 1128 sta = LSTA_TO_STA(lsta); 1129 1130 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1131 1132 IEEE80211_UNLOCK(vap->iv_ic); 1133 LKPI_80211_LHW_LOCK(lhw); 1134 1135 /* flush, drop. */ 1136 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1137 1138 /* Wake tx queues to get packet(s) out. */ 1139 lkpi_wake_tx_queues(hw, sta, true, true); 1140 1141 /* flush, no drop */ 1142 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1143 1144 /* End mgd_complete_tx. */ 1145 if (lsta->in_mgd) { 1146 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1147 prep_tx_info.success = false; 1148 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1149 lsta->in_mgd = false; 1150 } 1151 1152 /* sync_rx_queues */ 1153 lkpi_80211_mo_sync_rx_queues(hw); 1154 1155 /* sta_pre_rcu_remove */ 1156 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1157 1158 /* Take the station down. */ 1159 1160 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1161 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1162 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1163 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1164 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1165 if (error != 0) { 1166 IMPROVE("do we need to undo the chan ctx?"); 1167 goto out; 1168 } 1169 #if 0 1170 lsta->added_to_drv = false; /* mo manages. */ 1171 #endif 1172 1173 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1174 1175 lkpi_lsta_remove(lsta, lvif); 1176 1177 /* conf_tx */ 1178 1179 /* Take the chan ctx down. */ 1180 if (vif->chanctx_conf != NULL) { 1181 struct ieee80211_chanctx_conf *conf; 1182 1183 conf = vif->chanctx_conf; 1184 /* Remove vif context. */ 1185 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1186 /* NB: vif->chanctx_conf is NULL now. */ 1187 1188 /* Remove chan ctx. */ 1189 lkpi_80211_mo_remove_chanctx(hw, conf); 1190 free(conf, M_LKPI80211); 1191 } 1192 1193 out: 1194 LKPI_80211_LHW_UNLOCK(lhw); 1195 IEEE80211_LOCK(vap->iv_ic); 1196 if (ni != NULL) 1197 ieee80211_free_node(ni); 1198 return (error); 1199 } 1200 1201 static int 1202 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1203 { 1204 int error; 1205 1206 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1207 if (error == 0) 1208 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1209 return (error); 1210 } 1211 1212 static int 1213 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1214 { 1215 struct lkpi_hw *lhw; 1216 struct ieee80211_hw *hw; 1217 struct lkpi_vif *lvif; 1218 struct ieee80211_vif *vif; 1219 struct ieee80211_node *ni; 1220 struct lkpi_sta *lsta; 1221 struct ieee80211_prep_tx_info prep_tx_info; 1222 int error; 1223 1224 lhw = vap->iv_ic->ic_softc; 1225 hw = LHW_TO_HW(lhw); 1226 lvif = VAP_TO_LVIF(vap); 1227 vif = LVIF_TO_VIF(lvif); 1228 1229 IEEE80211_UNLOCK(vap->iv_ic); 1230 LKPI_80211_LHW_LOCK(lhw); 1231 ni = NULL; 1232 1233 /* Finish auth. */ 1234 IMPROVE("event callback"); 1235 1236 /* Update sta_state (NONE to AUTH). */ 1237 ni = ieee80211_ref_node(vap->iv_bss); 1238 lsta = ni->ni_drv_data; 1239 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1240 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1241 "NONE: %#x\n", __func__, lsta, lsta->state)); 1242 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1243 if (error != 0) 1244 goto out; 1245 1246 /* End mgd_complete_tx. */ 1247 if (lsta->in_mgd) { 1248 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1249 prep_tx_info.success = true; 1250 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1251 lsta->in_mgd = false; 1252 } 1253 1254 /* Now start assoc. */ 1255 1256 /* Start mgd_prepare_tx. */ 1257 if (!lsta->in_mgd) { 1258 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1259 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1260 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1261 lsta->in_mgd = true; 1262 } 1263 1264 /* Wake tx queue to get packet out. */ 1265 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1266 1267 /* 1268 * <twiddle> .. we end up in "assoc_to_run" 1269 * - update sta_state (AUTH to ASSOC) 1270 * - conf_tx [all] 1271 * - bss_info_changed (assoc, aid, ssid, ..) 1272 * - change_chanctx (if needed) 1273 * - event_callback 1274 * - mgd_complete_tx 1275 */ 1276 1277 out: 1278 LKPI_80211_LHW_UNLOCK(lhw); 1279 IEEE80211_LOCK(vap->iv_ic); 1280 if (ni != NULL) 1281 ieee80211_free_node(ni); 1282 return (error); 1283 } 1284 1285 /* auth_to_auth, assoc_to_assoc. */ 1286 static int 1287 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1288 { 1289 struct lkpi_hw *lhw; 1290 struct ieee80211_hw *hw; 1291 struct lkpi_vif *lvif; 1292 struct ieee80211_vif *vif; 1293 struct ieee80211_node *ni; 1294 struct lkpi_sta *lsta; 1295 struct ieee80211_prep_tx_info prep_tx_info; 1296 1297 lhw = vap->iv_ic->ic_softc; 1298 hw = LHW_TO_HW(lhw); 1299 lvif = VAP_TO_LVIF(vap); 1300 vif = LVIF_TO_VIF(lvif); 1301 1302 ni = ieee80211_ref_node(vap->iv_bss); 1303 1304 IEEE80211_UNLOCK(vap->iv_ic); 1305 LKPI_80211_LHW_LOCK(lhw); 1306 lsta = ni->ni_drv_data; 1307 1308 IMPROVE("event callback?"); 1309 1310 /* End mgd_complete_tx. */ 1311 if (lsta->in_mgd) { 1312 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1313 prep_tx_info.success = false; 1314 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1315 lsta->in_mgd = false; 1316 } 1317 1318 /* Now start assoc. */ 1319 1320 /* Start mgd_prepare_tx. */ 1321 if (!lsta->in_mgd) { 1322 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1323 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1324 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1325 lsta->in_mgd = true; 1326 } 1327 1328 LKPI_80211_LHW_UNLOCK(lhw); 1329 IEEE80211_LOCK(vap->iv_ic); 1330 if (ni != NULL) 1331 ieee80211_free_node(ni); 1332 1333 return (0); 1334 } 1335 1336 static int 1337 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1338 { 1339 struct lkpi_hw *lhw; 1340 struct ieee80211_hw *hw; 1341 struct lkpi_vif *lvif; 1342 struct ieee80211_vif *vif; 1343 struct ieee80211_node *ni; 1344 struct lkpi_sta *lsta; 1345 struct ieee80211_sta *sta; 1346 struct ieee80211_prep_tx_info prep_tx_info; 1347 enum ieee80211_bss_changed bss_changed; 1348 int error; 1349 1350 lhw = vap->iv_ic->ic_softc; 1351 hw = LHW_TO_HW(lhw); 1352 lvif = VAP_TO_LVIF(vap); 1353 vif = LVIF_TO_VIF(lvif); 1354 1355 /* Keep ni around. */ 1356 ni = ieee80211_ref_node(vap->iv_bss); 1357 lsta = ni->ni_drv_data; 1358 sta = LSTA_TO_STA(lsta); 1359 1360 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1361 1362 IEEE80211_UNLOCK(vap->iv_ic); 1363 LKPI_80211_LHW_LOCK(lhw); 1364 1365 /* flush, drop. */ 1366 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1367 1368 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1369 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1370 !lsta->in_mgd) { 1371 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1372 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1373 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1374 lsta->in_mgd = true; 1375 } 1376 1377 LKPI_80211_LHW_UNLOCK(lhw); 1378 IEEE80211_LOCK(vap->iv_ic); 1379 1380 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1381 error = lvif->iv_newstate(vap, nstate, arg); 1382 if (error != 0) 1383 goto outni; 1384 1385 IEEE80211_UNLOCK(vap->iv_ic); 1386 LKPI_80211_LHW_LOCK(lhw); 1387 1388 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1389 1390 /* Wake tx queues to get packet(s) out. */ 1391 lkpi_wake_tx_queues(hw, sta, true, true); 1392 1393 /* flush, no drop */ 1394 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1395 1396 /* End mgd_complete_tx. */ 1397 if (lsta->in_mgd) { 1398 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1399 prep_tx_info.success = false; 1400 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1401 lsta->in_mgd = false; 1402 } 1403 1404 /* sync_rx_queues */ 1405 lkpi_80211_mo_sync_rx_queues(hw); 1406 1407 /* sta_pre_rcu_remove */ 1408 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1409 1410 /* Take the station down. */ 1411 1412 /* Update sta and change state (from AUTH) to NONE. */ 1413 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1414 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1415 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1416 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1417 if (error != 0) 1418 goto out; 1419 1420 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1421 1422 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1423 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1424 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1425 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1426 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1427 if (error != 0) { 1428 IMPROVE("do we need to undo the chan ctx?"); 1429 goto out; 1430 } 1431 #if 0 1432 lsta->added_to_drv = false; /* mo manages. */ 1433 #endif 1434 1435 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1436 1437 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1438 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1439 lkpi_disassoc(sta, vif, lhw); 1440 1441 IMPROVE("Any bss_info changes to announce?"); 1442 bss_changed = 0; 1443 vif->bss_conf.qos = 0; 1444 bss_changed |= BSS_CHANGED_QOS; 1445 vif->cfg.ssid_len = 0; 1446 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1447 bss_changed |= BSS_CHANGED_BSSID; 1448 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1449 1450 lkpi_lsta_remove(lsta, lvif); 1451 1452 /* conf_tx */ 1453 1454 /* Take the chan ctx down. */ 1455 if (vif->chanctx_conf != NULL) { 1456 struct ieee80211_chanctx_conf *conf; 1457 1458 conf = vif->chanctx_conf; 1459 /* Remove vif context. */ 1460 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1461 /* NB: vif->chanctx_conf is NULL now. */ 1462 1463 /* Remove chan ctx. */ 1464 lkpi_80211_mo_remove_chanctx(hw, conf); 1465 free(conf, M_LKPI80211); 1466 } 1467 1468 error = EALREADY; 1469 out: 1470 LKPI_80211_LHW_UNLOCK(lhw); 1471 IEEE80211_LOCK(vap->iv_ic); 1472 outni: 1473 if (ni != NULL) 1474 ieee80211_free_node(ni); 1475 return (error); 1476 } 1477 1478 static int 1479 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1480 { 1481 int error; 1482 1483 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1484 if (error != 0 && error != EALREADY) 1485 return (error); 1486 1487 /* At this point iv_bss is long a new node! */ 1488 1489 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1490 return (error); 1491 } 1492 1493 static int 1494 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1495 { 1496 int error; 1497 1498 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1499 return (error); 1500 } 1501 1502 static int 1503 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1504 { 1505 int error; 1506 1507 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1508 return (error); 1509 } 1510 1511 static int 1512 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1513 { 1514 struct lkpi_hw *lhw; 1515 struct ieee80211_hw *hw; 1516 struct lkpi_vif *lvif; 1517 struct ieee80211_vif *vif; 1518 struct ieee80211_node *ni; 1519 struct lkpi_sta *lsta; 1520 struct ieee80211_sta *sta; 1521 struct ieee80211_prep_tx_info prep_tx_info; 1522 enum ieee80211_bss_changed bss_changed; 1523 int error; 1524 1525 lhw = vap->iv_ic->ic_softc; 1526 hw = LHW_TO_HW(lhw); 1527 lvif = VAP_TO_LVIF(vap); 1528 vif = LVIF_TO_VIF(lvif); 1529 1530 IEEE80211_UNLOCK(vap->iv_ic); 1531 LKPI_80211_LHW_LOCK(lhw); 1532 ni = NULL; 1533 1534 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1535 "and to lesser extend ieee80211_notify_node_join"); 1536 1537 /* Finish assoc. */ 1538 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1539 ni = ieee80211_ref_node(vap->iv_bss); 1540 lsta = ni->ni_drv_data; 1541 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1542 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1543 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1544 sta = LSTA_TO_STA(lsta); 1545 sta->aid = IEEE80211_NODE_AID(ni); 1546 #ifdef LKPI_80211_WME 1547 if (vap->iv_flags & IEEE80211_F_WME) 1548 sta->wme = true; 1549 #endif 1550 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1551 if (error != 0) 1552 goto out; 1553 1554 IMPROVE("wme / conf_tx [all]"); 1555 1556 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1557 bss_changed = 0; 1558 #ifdef LKPI_80211_WME 1559 bss_changed |= lkpi_wme_update(lhw, vap, true); 1560 #endif 1561 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 1562 vif->cfg.assoc = true; 1563 vif->cfg.aid = IEEE80211_NODE_AID(ni); 1564 bss_changed |= BSS_CHANGED_ASSOC; 1565 } 1566 /* We set SSID but this is not BSSID! */ 1567 vif->cfg.ssid_len = ni->ni_esslen; 1568 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 1569 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1570 vif->bss_conf.use_short_preamble) { 1571 vif->bss_conf.use_short_preamble ^= 1; 1572 /* bss_changed |= BSS_CHANGED_??? */ 1573 } 1574 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1575 vif->bss_conf.use_short_slot) { 1576 vif->bss_conf.use_short_slot ^= 1; 1577 /* bss_changed |= BSS_CHANGED_??? */ 1578 } 1579 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1580 vif->bss_conf.qos) { 1581 vif->bss_conf.qos ^= 1; 1582 bss_changed |= BSS_CHANGED_QOS; 1583 } 1584 1585 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1586 1587 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1588 1589 /* - change_chanctx (if needed) 1590 * - event_callback 1591 */ 1592 1593 /* End mgd_complete_tx. */ 1594 if (lsta->in_mgd) { 1595 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1596 prep_tx_info.success = true; 1597 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1598 lsta->in_mgd = false; 1599 } 1600 1601 lkpi_hw_conf_idle(hw, false); 1602 1603 /* 1604 * And then: 1605 * - (more packets)? 1606 * - set_key 1607 * - set_default_unicast_key 1608 * - set_key (?) 1609 * - ipv6_addr_change (?) 1610 */ 1611 /* Prepare_multicast && configure_filter. */ 1612 lhw->update_mc = true; 1613 lkpi_update_mcast_filter(vap->iv_ic, true); 1614 1615 if (!ieee80211_node_is_authorized(ni)) { 1616 IMPROVE("net80211 does not consider node authorized"); 1617 } 1618 1619 /* Update sta_state (ASSOC to AUTHORIZED). */ 1620 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1621 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1622 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1623 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1624 if (error != 0) { 1625 IMPROVE("undo some changes?"); 1626 goto out; 1627 } 1628 1629 /* - drv_config (?) 1630 * - bss_info_changed 1631 * - set_rekey_data (?) 1632 * 1633 * And now we should be passing packets. 1634 */ 1635 IMPROVE("Need that bssid setting, and the keys"); 1636 1637 bss_changed = 0; 1638 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1639 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1640 1641 out: 1642 LKPI_80211_LHW_UNLOCK(lhw); 1643 IEEE80211_LOCK(vap->iv_ic); 1644 if (ni != NULL) 1645 ieee80211_free_node(ni); 1646 return (error); 1647 } 1648 1649 static int 1650 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1651 { 1652 int error; 1653 1654 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1655 if (error == 0) 1656 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1657 return (error); 1658 } 1659 1660 static int 1661 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1662 { 1663 struct lkpi_hw *lhw; 1664 struct ieee80211_hw *hw; 1665 struct lkpi_vif *lvif; 1666 struct ieee80211_vif *vif; 1667 struct ieee80211_node *ni; 1668 struct lkpi_sta *lsta; 1669 struct ieee80211_sta *sta; 1670 struct ieee80211_prep_tx_info prep_tx_info; 1671 #if 0 1672 enum ieee80211_bss_changed bss_changed; 1673 #endif 1674 int error; 1675 1676 lhw = vap->iv_ic->ic_softc; 1677 hw = LHW_TO_HW(lhw); 1678 lvif = VAP_TO_LVIF(vap); 1679 vif = LVIF_TO_VIF(lvif); 1680 1681 /* Keep ni around. */ 1682 ni = ieee80211_ref_node(vap->iv_bss); 1683 lsta = ni->ni_drv_data; 1684 sta = LSTA_TO_STA(lsta); 1685 1686 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1687 1688 IEEE80211_UNLOCK(vap->iv_ic); 1689 LKPI_80211_LHW_LOCK(lhw); 1690 1691 /* flush, drop. */ 1692 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1693 1694 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1695 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1696 !lsta->in_mgd) { 1697 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1698 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1699 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1700 lsta->in_mgd = true; 1701 } 1702 1703 LKPI_80211_LHW_UNLOCK(lhw); 1704 IEEE80211_LOCK(vap->iv_ic); 1705 1706 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1707 error = lvif->iv_newstate(vap, nstate, arg); 1708 if (error != 0) 1709 goto outni; 1710 1711 IEEE80211_UNLOCK(vap->iv_ic); 1712 LKPI_80211_LHW_LOCK(lhw); 1713 1714 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1715 1716 /* Wake tx queues to get packet(s) out. */ 1717 lkpi_wake_tx_queues(hw, sta, true, true); 1718 1719 /* flush, no drop */ 1720 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1721 1722 /* End mgd_complete_tx. */ 1723 if (lsta->in_mgd) { 1724 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1725 prep_tx_info.success = false; 1726 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1727 lsta->in_mgd = false; 1728 } 1729 1730 #if 0 1731 /* sync_rx_queues */ 1732 lkpi_80211_mo_sync_rx_queues(hw); 1733 1734 /* sta_pre_rcu_remove */ 1735 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1736 #endif 1737 1738 /* Take the station down. */ 1739 1740 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1741 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1742 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1743 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1744 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1745 if (error != 0) 1746 goto out; 1747 1748 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1749 1750 /* Update sta_state (ASSOC to AUTH). */ 1751 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1752 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1753 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1754 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1755 if (error != 0) 1756 goto out; 1757 1758 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1759 1760 #if 0 1761 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1762 lkpi_disassoc(sta, vif, lhw); 1763 #endif 1764 1765 error = EALREADY; 1766 out: 1767 LKPI_80211_LHW_UNLOCK(lhw); 1768 IEEE80211_LOCK(vap->iv_ic); 1769 outni: 1770 if (ni != NULL) 1771 ieee80211_free_node(ni); 1772 return (error); 1773 } 1774 1775 static int 1776 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1777 { 1778 struct lkpi_hw *lhw; 1779 struct ieee80211_hw *hw; 1780 struct lkpi_vif *lvif; 1781 struct ieee80211_vif *vif; 1782 struct ieee80211_node *ni; 1783 struct lkpi_sta *lsta; 1784 struct ieee80211_sta *sta; 1785 struct ieee80211_prep_tx_info prep_tx_info; 1786 enum ieee80211_bss_changed bss_changed; 1787 int error; 1788 1789 lhw = vap->iv_ic->ic_softc; 1790 hw = LHW_TO_HW(lhw); 1791 lvif = VAP_TO_LVIF(vap); 1792 vif = LVIF_TO_VIF(lvif); 1793 1794 /* Keep ni around. */ 1795 ni = ieee80211_ref_node(vap->iv_bss); 1796 lsta = ni->ni_drv_data; 1797 sta = LSTA_TO_STA(lsta); 1798 1799 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1800 1801 IEEE80211_UNLOCK(vap->iv_ic); 1802 LKPI_80211_LHW_LOCK(lhw); 1803 1804 /* flush, drop. */ 1805 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1806 1807 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1808 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1809 !lsta->in_mgd) { 1810 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1811 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1812 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1813 lsta->in_mgd = true; 1814 } 1815 1816 LKPI_80211_LHW_UNLOCK(lhw); 1817 IEEE80211_LOCK(vap->iv_ic); 1818 1819 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1820 error = lvif->iv_newstate(vap, nstate, arg); 1821 if (error != 0) 1822 goto outni; 1823 1824 IEEE80211_UNLOCK(vap->iv_ic); 1825 LKPI_80211_LHW_LOCK(lhw); 1826 1827 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1828 1829 /* Wake tx queues to get packet(s) out. */ 1830 lkpi_wake_tx_queues(hw, sta, true, true); 1831 1832 /* flush, no drop */ 1833 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1834 1835 /* End mgd_complete_tx. */ 1836 if (lsta->in_mgd) { 1837 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1838 prep_tx_info.success = false; 1839 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1840 lsta->in_mgd = false; 1841 } 1842 1843 /* sync_rx_queues */ 1844 lkpi_80211_mo_sync_rx_queues(hw); 1845 1846 /* sta_pre_rcu_remove */ 1847 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1848 1849 /* Take the station down. */ 1850 1851 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1852 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1853 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1854 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1855 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1856 if (error != 0) 1857 goto out; 1858 1859 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1860 1861 /* Update sta_state (ASSOC to AUTH). */ 1862 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1863 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1864 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1865 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1866 if (error != 0) 1867 goto out; 1868 1869 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1870 1871 /* Update sta and change state (from AUTH) to NONE. */ 1872 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1873 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1874 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1875 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1876 if (error != 0) 1877 goto out; 1878 1879 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1880 1881 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1882 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1883 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1884 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1885 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1886 if (error != 0) { 1887 IMPROVE("do we need to undo the chan ctx?"); 1888 goto out; 1889 } 1890 #if 0 1891 lsta->added_to_drv = false; /* mo manages. */ 1892 #endif 1893 1894 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1895 1896 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1897 /* 1898 * One would expect this to happen when going off AUTHORIZED. 1899 * See comment there; removes the sta from fw. 1900 */ 1901 lkpi_disassoc(sta, vif, lhw); 1902 1903 IMPROVE("Any bss_info changes to announce?"); 1904 bss_changed = 0; 1905 vif->bss_conf.qos = 0; 1906 bss_changed |= BSS_CHANGED_QOS; 1907 vif->cfg.ssid_len = 0; 1908 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1909 bss_changed |= BSS_CHANGED_BSSID; 1910 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1911 1912 lkpi_lsta_remove(lsta, lvif); 1913 1914 /* conf_tx */ 1915 1916 /* Take the chan ctx down. */ 1917 if (vif->chanctx_conf != NULL) { 1918 struct ieee80211_chanctx_conf *conf; 1919 1920 conf = vif->chanctx_conf; 1921 /* Remove vif context. */ 1922 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1923 /* NB: vif->chanctx_conf is NULL now. */ 1924 1925 /* Remove chan ctx. */ 1926 lkpi_80211_mo_remove_chanctx(hw, conf); 1927 free(conf, M_LKPI80211); 1928 } 1929 1930 error = EALREADY; 1931 out: 1932 LKPI_80211_LHW_UNLOCK(lhw); 1933 IEEE80211_LOCK(vap->iv_ic); 1934 outni: 1935 if (ni != NULL) 1936 ieee80211_free_node(ni); 1937 return (error); 1938 } 1939 1940 static int 1941 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1942 { 1943 1944 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1945 } 1946 1947 static int 1948 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1949 { 1950 int error; 1951 1952 error = lkpi_sta_run_to_init(vap, nstate, arg); 1953 if (error != 0 && error != EALREADY) 1954 return (error); 1955 1956 /* At this point iv_bss is long a new node! */ 1957 1958 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1959 return (error); 1960 } 1961 1962 /* -------------------------------------------------------------------------- */ 1963 1964 /* 1965 * The matches the documented state changes in net80211::sta_newstate(). 1966 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1967 * there are "invalid" (so there is a room for failure here). 1968 */ 1969 struct fsm_state { 1970 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1971 enum ieee80211_state ostate; 1972 enum ieee80211_state nstate; 1973 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1974 } sta_state_fsm[] = { 1975 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1976 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1977 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1978 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1979 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1980 1981 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1982 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1983 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1984 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1985 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1986 1987 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1988 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1989 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1990 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1991 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1992 1993 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1994 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1995 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1996 1997 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1998 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1999 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2000 2001 /* Dummy at the end without handler. */ 2002 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2003 }; 2004 2005 static int 2006 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2007 { 2008 struct ieee80211com *ic; 2009 struct lkpi_hw *lhw; 2010 struct lkpi_vif *lvif; 2011 struct ieee80211_vif *vif; 2012 struct fsm_state *s; 2013 enum ieee80211_state ostate; 2014 int error; 2015 2016 ic = vap->iv_ic; 2017 IEEE80211_LOCK_ASSERT(ic); 2018 ostate = vap->iv_state; 2019 2020 #ifdef LINUXKPI_DEBUG_80211 2021 if (linuxkpi_debug_80211 & D80211_TRACE) 2022 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2023 __func__, __LINE__, vap, nstate, arg); 2024 #endif 2025 2026 if (vap->iv_opmode == IEEE80211_M_STA) { 2027 2028 lhw = ic->ic_softc; 2029 lvif = VAP_TO_LVIF(vap); 2030 vif = LVIF_TO_VIF(lvif); 2031 2032 /* No need to replicate this in most state handlers. */ 2033 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2034 lkpi_stop_hw_scan(lhw, vif); 2035 2036 s = sta_state_fsm; 2037 2038 } else { 2039 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2040 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2041 return (ENOSYS); 2042 } 2043 2044 error = 0; 2045 for (; s->handler != NULL; s++) { 2046 if (ostate == s->ostate && nstate == s->nstate) { 2047 #ifdef LINUXKPI_DEBUG_80211 2048 if (linuxkpi_debug_80211 & D80211_TRACE) 2049 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2050 " %d (%s): arg %d.\n", __func__, 2051 ostate, ieee80211_state_name[ostate], 2052 nstate, ieee80211_state_name[nstate], arg); 2053 #endif 2054 error = s->handler(vap, nstate, arg); 2055 break; 2056 } 2057 } 2058 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2059 2060 if (s->handler == NULL) { 2061 IMPROVE("turn this into a KASSERT\n"); 2062 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2063 "%d (%s) -> %d (%s)\n", __func__, 2064 ostate, ieee80211_state_name[ostate], 2065 nstate, ieee80211_state_name[nstate]); 2066 return (ENOSYS); 2067 } 2068 2069 if (error == EALREADY) { 2070 #ifdef LINUXKPI_DEBUG_80211 2071 if (linuxkpi_debug_80211 & D80211_TRACE) 2072 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2073 "%d (%s): iv_newstate already handled: %d.\n", 2074 __func__, ostate, ieee80211_state_name[ostate], 2075 nstate, ieee80211_state_name[nstate], error); 2076 #endif 2077 return (0); 2078 } 2079 2080 if (error != 0) { 2081 /* XXX-BZ currently expected so ignore. */ 2082 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2083 "%d (%s) -> %d (%s)\n", __func__, error, 2084 ostate, ieee80211_state_name[ostate], 2085 nstate, ieee80211_state_name[nstate]); 2086 /* return (error); */ 2087 } 2088 2089 #ifdef LINUXKPI_DEBUG_80211 2090 if (linuxkpi_debug_80211 & D80211_TRACE) 2091 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2092 "calling net80211 parent\n", 2093 __func__, __LINE__, vap, nstate, arg); 2094 #endif 2095 2096 return (lvif->iv_newstate(vap, nstate, arg)); 2097 } 2098 2099 /* -------------------------------------------------------------------------- */ 2100 2101 /* 2102 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2103 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2104 * new node without us knowing and thus our ni/lsta are out of sync. 2105 */ 2106 static struct ieee80211_node * 2107 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2108 { 2109 struct lkpi_vif *lvif; 2110 struct ieee80211_node *obss; 2111 struct lkpi_sta *lsta; 2112 struct ieee80211_sta *sta; 2113 2114 obss = vap->iv_bss; 2115 2116 #ifdef LINUXKPI_DEBUG_80211 2117 if (linuxkpi_debug_80211 & D80211_TRACE) 2118 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2119 "ni %p ni_drv_data %p\n", __func__, 2120 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2121 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2122 #endif 2123 2124 /* Nothing to copy from. Just return. */ 2125 if (obss == NULL || obss->ni_drv_data == NULL) 2126 goto out; 2127 2128 /* Nothing to copy to. Just return. */ 2129 IMPROVE("clearing the obss might still be needed?"); 2130 if (ni == NULL) 2131 goto out; 2132 2133 /* Nothing changed? panic? */ 2134 if (obss == ni) 2135 goto out; 2136 2137 lsta = obss->ni_drv_data; 2138 obss->ni_drv_data = ni->ni_drv_data; 2139 ni->ni_drv_data = lsta; 2140 if (lsta != NULL) { 2141 lsta->ni = ni; 2142 sta = LSTA_TO_STA(lsta); 2143 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2144 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2145 } 2146 lsta = obss->ni_drv_data; 2147 if (lsta != NULL) { 2148 lsta->ni = obss; 2149 sta = LSTA_TO_STA(lsta); 2150 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2151 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2152 } 2153 2154 out: 2155 lvif = VAP_TO_LVIF(vap); 2156 return (lvif->iv_update_bss(vap, ni)); 2157 } 2158 2159 #ifdef LKPI_80211_WME 2160 static int 2161 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2162 { 2163 struct ieee80211com *ic; 2164 struct ieee80211_hw *hw; 2165 struct lkpi_vif *lvif; 2166 struct ieee80211_vif *vif; 2167 struct chanAccParams chp; 2168 struct wmeParams wmeparr[WME_NUM_AC]; 2169 struct ieee80211_tx_queue_params txqp; 2170 enum ieee80211_bss_changed changed; 2171 int error; 2172 uint16_t ac; 2173 2174 IMPROVE(); 2175 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2176 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2177 2178 if (vap == NULL) 2179 return (0); 2180 2181 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2182 return (0); 2183 2184 if (lhw->ops->conf_tx == NULL) 2185 return (0); 2186 2187 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2188 lhw->update_wme = true; 2189 return (0); 2190 } 2191 lhw->update_wme = false; 2192 2193 ic = lhw->ic; 2194 ieee80211_wme_ic_getparams(ic, &chp); 2195 IEEE80211_LOCK(ic); 2196 for (ac = 0; ac < WME_NUM_AC; ac++) 2197 wmeparr[ac] = chp.cap_wmeParams[ac]; 2198 IEEE80211_UNLOCK(ic); 2199 2200 hw = LHW_TO_HW(lhw); 2201 lvif = VAP_TO_LVIF(vap); 2202 vif = LVIF_TO_VIF(lvif); 2203 2204 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2205 LKPI_80211_LHW_LOCK(lhw); 2206 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2207 struct wmeParams *wmep; 2208 2209 wmep = &wmeparr[ac]; 2210 bzero(&txqp, sizeof(txqp)); 2211 txqp.cw_min = wmep->wmep_logcwmin; 2212 txqp.cw_max = wmep->wmep_logcwmax; 2213 txqp.txop = wmep->wmep_txopLimit; 2214 txqp.aifs = wmep->wmep_aifsn; 2215 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2216 if (error != 0) 2217 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2218 __func__, ac, error); 2219 } 2220 LKPI_80211_LHW_UNLOCK(lhw); 2221 changed = BSS_CHANGED_QOS; 2222 if (!planned) 2223 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2224 2225 return (changed); 2226 } 2227 #endif 2228 2229 static int 2230 lkpi_ic_wme_update(struct ieee80211com *ic) 2231 { 2232 #ifdef LKPI_80211_WME 2233 struct ieee80211vap *vap; 2234 struct lkpi_hw *lhw; 2235 2236 IMPROVE("Use the per-VAP callback in net80211."); 2237 vap = TAILQ_FIRST(&ic->ic_vaps); 2238 if (vap == NULL) 2239 return (0); 2240 2241 lhw = ic->ic_softc; 2242 2243 lkpi_wme_update(lhw, vap, false); 2244 #endif 2245 return (0); /* unused */ 2246 } 2247 2248 static struct ieee80211vap * 2249 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2250 int unit, enum ieee80211_opmode opmode, int flags, 2251 const uint8_t bssid[IEEE80211_ADDR_LEN], 2252 const uint8_t mac[IEEE80211_ADDR_LEN]) 2253 { 2254 struct lkpi_hw *lhw; 2255 struct ieee80211_hw *hw; 2256 struct lkpi_vif *lvif; 2257 struct ieee80211vap *vap; 2258 struct ieee80211_vif *vif; 2259 struct ieee80211_tx_queue_params txqp; 2260 enum ieee80211_bss_changed changed; 2261 size_t len; 2262 int error, i; 2263 uint16_t ac; 2264 2265 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2266 return (NULL); 2267 2268 lhw = ic->ic_softc; 2269 hw = LHW_TO_HW(lhw); 2270 2271 len = sizeof(*lvif); 2272 len += hw->vif_data_size; /* vif->drv_priv */ 2273 2274 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2275 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2276 TAILQ_INIT(&lvif->lsta_head); 2277 vap = LVIF_TO_VAP(lvif); 2278 2279 vif = LVIF_TO_VIF(lvif); 2280 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2281 vif->p2p = false; 2282 vif->probe_req_reg = false; 2283 vif->type = lkpi_opmode_to_vif_type(opmode); 2284 lvif->wdev.iftype = vif->type; 2285 /* Need to fill in other fields as well. */ 2286 IMPROVE(); 2287 2288 /* XXX-BZ hardcoded for now! */ 2289 #if 1 2290 vif->chanctx_conf = NULL; 2291 vif->bss_conf.vif = vif; 2292 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2293 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2294 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2295 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2296 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2297 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2298 vif->bss_conf.qos = false; 2299 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2300 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2301 vif->cfg.aid = 0; 2302 vif->cfg.assoc = false; 2303 vif->cfg.idle = true; 2304 vif->cfg.ps = false; 2305 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2306 /* 2307 * We need to initialize it to something as the bss_info_changed call 2308 * will try to copy from it in iwlwifi and NULL is a panic. 2309 * We will set the proper one in scan_to_auth() before being assoc. 2310 */ 2311 vif->bss_conf.bssid = ieee80211broadcastaddr; 2312 #endif 2313 #if 0 2314 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2315 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2316 vif->bss_conf.beacon_int = ic->ic_bintval; 2317 /* iwlwifi bug. */ 2318 if (vif->bss_conf.beacon_int < 16) 2319 vif->bss_conf.beacon_int = 16; 2320 #endif 2321 2322 /* Link Config */ 2323 vif->link_conf[0] = &vif->bss_conf; 2324 for (i = 0; i < nitems(vif->link_conf); i++) { 2325 IMPROVE("more than 1 link one day"); 2326 } 2327 2328 /* Setup queue defaults; driver may override in (*add_interface). */ 2329 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2330 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2331 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2332 else if (hw->queues >= IEEE80211_NUM_ACS) 2333 vif->hw_queue[i] = i; 2334 else 2335 vif->hw_queue[i] = 0; 2336 2337 /* Initialize the queue to running. Stopped? */ 2338 lvif->hw_queue_stopped[i] = false; 2339 } 2340 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2341 2342 IMPROVE(); 2343 2344 error = lkpi_80211_mo_start(hw); 2345 if (error != 0) { 2346 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2347 mtx_destroy(&lvif->mtx); 2348 free(lvif, M_80211_VAP); 2349 return (NULL); 2350 } 2351 2352 error = lkpi_80211_mo_add_interface(hw, vif); 2353 if (error != 0) { 2354 IMPROVE(); /* XXX-BZ mo_stop()? */ 2355 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2356 mtx_destroy(&lvif->mtx); 2357 free(lvif, M_80211_VAP); 2358 return (NULL); 2359 } 2360 2361 LKPI_80211_LHW_LVIF_LOCK(lhw); 2362 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2363 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2364 2365 /* Set bss_info. */ 2366 changed = 0; 2367 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2368 2369 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2370 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2371 LKPI_80211_LHW_LOCK(lhw); 2372 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2373 2374 bzero(&txqp, sizeof(txqp)); 2375 txqp.cw_min = 15; 2376 txqp.cw_max = 1023; 2377 txqp.txop = 0; 2378 txqp.aifs = 2; 2379 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2380 if (error != 0) 2381 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2382 __func__, ac, error); 2383 } 2384 LKPI_80211_LHW_UNLOCK(lhw); 2385 changed = BSS_CHANGED_QOS; 2386 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2387 2388 /* Force MC init. */ 2389 lkpi_update_mcast_filter(ic, true); 2390 2391 IMPROVE(); 2392 2393 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2394 2395 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2396 lvif->iv_newstate = vap->iv_newstate; 2397 vap->iv_newstate = lkpi_iv_newstate; 2398 lvif->iv_update_bss = vap->iv_update_bss; 2399 vap->iv_update_bss = lkpi_iv_update_bss; 2400 2401 /* Key management. */ 2402 if (lhw->ops->set_key != NULL) { 2403 #ifdef LKPI_80211_HW_CRYPTO 2404 vap->iv_key_set = lkpi_iv_key_set; 2405 vap->iv_key_delete = lkpi_iv_key_delete; 2406 #endif 2407 } 2408 2409 ieee80211_ratectl_init(vap); 2410 2411 /* Complete setup. */ 2412 ieee80211_vap_attach(vap, ieee80211_media_change, 2413 ieee80211_media_status, mac); 2414 2415 if (hw->max_listen_interval == 0) 2416 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2417 hw->conf.listen_interval = hw->max_listen_interval; 2418 ic->ic_set_channel(ic); 2419 2420 /* XXX-BZ do we need to be able to update these? */ 2421 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2422 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2423 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2424 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2425 /* any others? */ 2426 IMPROVE(); 2427 2428 return (vap); 2429 } 2430 2431 void 2432 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2433 { 2434 2435 wiphy_unregister(hw->wiphy); 2436 linuxkpi_ieee80211_ifdetach(hw); 2437 2438 IMPROVE(); 2439 } 2440 2441 void 2442 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2443 { 2444 2445 TODO(); 2446 } 2447 2448 static void 2449 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2450 { 2451 struct ieee80211com *ic; 2452 struct lkpi_hw *lhw; 2453 struct ieee80211_hw *hw; 2454 struct lkpi_vif *lvif; 2455 struct ieee80211_vif *vif; 2456 2457 lvif = VAP_TO_LVIF(vap); 2458 vif = LVIF_TO_VIF(lvif); 2459 ic = vap->iv_ic; 2460 lhw = ic->ic_softc; 2461 hw = LHW_TO_HW(lhw); 2462 2463 LKPI_80211_LHW_LVIF_LOCK(lhw); 2464 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2465 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2466 lkpi_80211_mo_remove_interface(hw, vif); 2467 2468 ieee80211_ratectl_deinit(vap); 2469 ieee80211_vap_detach(vap); 2470 mtx_destroy(&lvif->mtx); 2471 free(lvif, M_80211_VAP); 2472 } 2473 2474 static void 2475 lkpi_ic_update_mcast(struct ieee80211com *ic) 2476 { 2477 2478 lkpi_update_mcast_filter(ic, false); 2479 TRACEOK(); 2480 } 2481 2482 static void 2483 lkpi_ic_update_promisc(struct ieee80211com *ic) 2484 { 2485 2486 UNIMPLEMENTED; 2487 } 2488 2489 static void 2490 lkpi_ic_update_chw(struct ieee80211com *ic) 2491 { 2492 2493 UNIMPLEMENTED; 2494 } 2495 2496 /* Start / stop device. */ 2497 static void 2498 lkpi_ic_parent(struct ieee80211com *ic) 2499 { 2500 struct lkpi_hw *lhw; 2501 #ifdef HW_START_STOP 2502 struct ieee80211_hw *hw; 2503 int error; 2504 #endif 2505 bool start_all; 2506 2507 IMPROVE(); 2508 2509 lhw = ic->ic_softc; 2510 #ifdef HW_START_STOP 2511 hw = LHW_TO_HW(lhw); 2512 #endif 2513 start_all = false; 2514 2515 /* IEEE80211_UNLOCK(ic); */ 2516 LKPI_80211_LHW_LOCK(lhw); 2517 if (ic->ic_nrunning > 0) { 2518 #ifdef HW_START_STOP 2519 error = lkpi_80211_mo_start(hw); 2520 if (error == 0) 2521 #endif 2522 start_all = true; 2523 } else { 2524 #ifdef HW_START_STOP 2525 lkpi_80211_mo_stop(hw); 2526 #endif 2527 } 2528 LKPI_80211_LHW_UNLOCK(lhw); 2529 /* IEEE80211_LOCK(ic); */ 2530 2531 if (start_all) 2532 ieee80211_start_all(ic); 2533 } 2534 2535 bool 2536 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2537 size_t ie_ids_len) 2538 { 2539 int i; 2540 2541 for (i = 0; i < ie_ids_len; i++) { 2542 if (ie == *ie_ids) 2543 return (true); 2544 } 2545 2546 return (false); 2547 } 2548 2549 /* Return true if skipped; false if error. */ 2550 bool 2551 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2552 { 2553 size_t x; 2554 uint8_t l; 2555 2556 x = *xp; 2557 2558 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2559 __func__, x, ies_len, ies)); 2560 l = ies[x + 1]; 2561 x += 2 + l; 2562 2563 if (x > ies_len) 2564 return (false); 2565 2566 *xp = x; 2567 return (true); 2568 } 2569 2570 static uint8_t * 2571 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2572 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2573 { 2574 struct ieee80211_supported_band *supband; 2575 struct linuxkpi_ieee80211_channel *channels; 2576 struct ieee80211com *ic; 2577 const struct ieee80211_channel *chan; 2578 const struct ieee80211_rateset *rs; 2579 uint8_t *pb; 2580 int band, i; 2581 2582 ic = vap->iv_ic; 2583 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2584 if ((band_mask & (1 << band)) == 0) 2585 continue; 2586 2587 supband = hw->wiphy->bands[band]; 2588 /* 2589 * This should not happen; 2590 * band_mask is a bitmask of valid bands to scan on. 2591 */ 2592 if (supband == NULL || supband->n_channels == 0) 2593 continue; 2594 2595 /* Find a first channel to get the mode and rates from. */ 2596 channels = supband->channels; 2597 chan = NULL; 2598 for (i = 0; i < supband->n_channels; i++) { 2599 2600 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2601 continue; 2602 2603 chan = ieee80211_find_channel(ic, 2604 channels[i].center_freq, 0); 2605 if (chan != NULL) 2606 break; 2607 } 2608 2609 /* This really should not happen. */ 2610 if (chan == NULL) 2611 continue; 2612 2613 pb = p; 2614 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 2615 p = ieee80211_add_rates(p, rs); 2616 p = ieee80211_add_xrates(p, rs); 2617 2618 #if defined(LKPI_80211_HT) 2619 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 2620 struct ieee80211_channel *c; 2621 2622 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2623 vap->iv_flags_ht); 2624 p = ieee80211_add_htcap_ch(p, vap, c); 2625 } 2626 #endif 2627 #if defined(LKPI_80211_VHT) 2628 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 2629 struct ieee80211_channel *c; 2630 2631 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2632 vap->iv_flags_ht); 2633 c = ieee80211_vht_adjust_channel(ic, c, 2634 vap->iv_vht_flags); 2635 p = ieee80211_add_vhtcap_ch(p, vap, c); 2636 } 2637 #endif 2638 2639 scan_ies->ies[band] = pb; 2640 scan_ies->len[band] = p - pb; 2641 } 2642 2643 /* Add common_ies */ 2644 pb = p; 2645 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2646 vap->iv_wpa_ie != NULL) { 2647 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2648 p += 2 + vap->iv_wpa_ie[1]; 2649 } 2650 if (vap->iv_appie_probereq != NULL) { 2651 memcpy(p, vap->iv_appie_probereq->ie_data, 2652 vap->iv_appie_probereq->ie_len); 2653 p += vap->iv_appie_probereq->ie_len; 2654 } 2655 scan_ies->common_ies = pb; 2656 scan_ies->common_ie_len = p - pb; 2657 2658 return (p); 2659 } 2660 2661 static void 2662 lkpi_ic_scan_start(struct ieee80211com *ic) 2663 { 2664 struct lkpi_hw *lhw; 2665 struct ieee80211_hw *hw; 2666 struct lkpi_vif *lvif; 2667 struct ieee80211_vif *vif; 2668 struct ieee80211_scan_state *ss; 2669 struct ieee80211vap *vap; 2670 int error; 2671 bool is_hw_scan; 2672 2673 lhw = ic->ic_softc; 2674 LKPI_80211_LHW_SCAN_LOCK(lhw); 2675 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2676 /* A scan is still running. */ 2677 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2678 return; 2679 } 2680 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2681 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2682 2683 ss = ic->ic_scan; 2684 vap = ss->ss_vap; 2685 if (vap->iv_state != IEEE80211_S_SCAN) { 2686 IMPROVE("We need to be able to scan if not in S_SCAN"); 2687 return; 2688 } 2689 2690 hw = LHW_TO_HW(lhw); 2691 if (!is_hw_scan) { 2692 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2693 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2694 sw_scan: 2695 lvif = VAP_TO_LVIF(vap); 2696 vif = LVIF_TO_VIF(lvif); 2697 2698 if (vap->iv_state == IEEE80211_S_SCAN) 2699 lkpi_hw_conf_idle(hw, false); 2700 2701 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2702 /* net80211::scan_start() handled PS for us. */ 2703 IMPROVE(); 2704 /* XXX Also means it is too late to flush queues? 2705 * need to check iv_sta_ps or overload? */ 2706 /* XXX want to adjust ss end time/ maxdwell? */ 2707 2708 } else { 2709 struct ieee80211_channel *c; 2710 struct ieee80211_scan_request *hw_req; 2711 struct linuxkpi_ieee80211_channel *lc, **cpp; 2712 struct cfg80211_ssid *ssids; 2713 struct cfg80211_scan_6ghz_params *s6gp; 2714 size_t chan_len, nchan, ssids_len, s6ghzlen; 2715 int band, i, ssid_count, common_ie_len; 2716 uint32_t band_mask; 2717 uint8_t *ie, *ieend; 2718 bool running; 2719 2720 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2721 ssids_len = ssid_count * sizeof(*ssids); 2722 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2723 2724 band_mask = 0; 2725 nchan = 0; 2726 for (i = ss->ss_next; i < ss->ss_last; i++) { 2727 nchan++; 2728 band = lkpi_net80211_chan_to_nl80211_band( 2729 ss->ss_chans[ss->ss_next + i]); 2730 band_mask |= (1 << band); 2731 } 2732 2733 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2734 IMPROVE("individual band scans not yet supported, only scanning first band"); 2735 /* In theory net80211 should drive this. */ 2736 /* Probably we need to add local logic for now; 2737 * need to deal with scan_complete 2738 * and cancel_scan and keep local state. 2739 * Also cut the nchan down above. 2740 */ 2741 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 2742 } 2743 2744 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2745 2746 common_ie_len = 0; 2747 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2748 vap->iv_wpa_ie != NULL) 2749 common_ie_len += vap->iv_wpa_ie[1]; 2750 if (vap->iv_appie_probereq != NULL) 2751 common_ie_len += vap->iv_appie_probereq->ie_len; 2752 2753 /* We would love to check this at an earlier stage... */ 2754 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2755 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2756 "wiphy->max_scan_ie_len %d\n", __func__, 2757 common_ie_len, hw->wiphy->max_scan_ie_len); 2758 } 2759 2760 hw_req = malloc(sizeof(*hw_req) + ssids_len + 2761 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2762 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2763 2764 hw_req->req.flags = 0; /* XXX ??? */ 2765 /* hw_req->req.wdev */ 2766 hw_req->req.wiphy = hw->wiphy; 2767 hw_req->req.no_cck = false; /* XXX */ 2768 #if 0 2769 /* This seems to pessimise default scanning behaviour. */ 2770 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2771 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2772 #endif 2773 #ifdef __notyet__ 2774 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2775 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2776 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2777 #endif 2778 eth_broadcast_addr(hw_req->req.bssid); 2779 2780 hw_req->req.n_channels = nchan; 2781 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2782 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2783 for (i = 0; i < nchan; i++) { 2784 *(cpp + i) = 2785 (struct linuxkpi_ieee80211_channel *)(lc + i); 2786 } 2787 for (i = 0; i < nchan; i++) { 2788 c = ss->ss_chans[ss->ss_next + i]; 2789 2790 lc->hw_value = c->ic_ieee; 2791 lc->center_freq = c->ic_freq; /* XXX */ 2792 /* lc->flags */ 2793 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2794 lc->max_power = c->ic_maxpower; 2795 /* lc-> ... */ 2796 lc++; 2797 } 2798 2799 hw_req->req.n_ssids = ssid_count; 2800 if (hw_req->req.n_ssids > 0) { 2801 ssids = (struct cfg80211_ssid *)lc; 2802 hw_req->req.ssids = ssids; 2803 for (i = 0; i < ssid_count; i++) { 2804 ssids->ssid_len = ss->ss_ssid[i].len; 2805 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2806 ss->ss_ssid[i].len); 2807 ssids++; 2808 } 2809 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2810 } else { 2811 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2812 } 2813 2814 /* 6GHz one day. */ 2815 hw_req->req.n_6ghz_params = 0; 2816 hw_req->req.scan_6ghz_params = NULL; 2817 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2818 /* s6gp->... */ 2819 2820 ie = ieend = (uint8_t *)s6gp; 2821 /* Copy per-band IEs, copy common IEs */ 2822 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2823 hw_req->req.ie = ie; 2824 hw_req->req.ie_len = ieend - ie; 2825 2826 lvif = VAP_TO_LVIF(vap); 2827 vif = LVIF_TO_VIF(lvif); 2828 2829 LKPI_80211_LHW_SCAN_LOCK(lhw); 2830 /* Re-check under lock. */ 2831 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2832 if (!running) { 2833 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2834 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2835 2836 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 2837 lhw->hw_req = hw_req; 2838 } 2839 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2840 if (running) { 2841 free(hw_req, M_LKPI80211); 2842 return; 2843 } 2844 2845 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2846 if (error != 0) { 2847 ieee80211_cancel_scan(vap); 2848 2849 /* 2850 * ieee80211_scan_completed must be called in either 2851 * case of error or none. So let the free happen there 2852 * and only there. 2853 * That would be fine in theory but in practice drivers 2854 * behave differently: 2855 * ath10k does not return hw_scan until after scan_complete 2856 * and can then still return an error. 2857 * rtw88 can return 1 or -EBUSY without scan_complete 2858 * iwlwifi can return various errors before scan starts 2859 * ... 2860 * So we cannot rely on that behaviour and have to check 2861 * and balance between both code paths. 2862 */ 2863 LKPI_80211_LHW_SCAN_LOCK(lhw); 2864 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2865 free(lhw->hw_req, M_LKPI80211); 2866 lhw->hw_req = NULL; 2867 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 2868 } 2869 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2870 2871 /* 2872 * XXX-SIGH magic number. 2873 * rtw88 has a magic "return 1" if offloading scan is 2874 * not possible. Fall back to sw scan in that case. 2875 */ 2876 if (error == 1) { 2877 LKPI_80211_LHW_SCAN_LOCK(lhw); 2878 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 2879 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2880 /* 2881 * XXX If we clear this now and later a driver 2882 * thinks it * can do a hw_scan again, we will 2883 * currently not re-enable it? 2884 */ 2885 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2886 ieee80211_start_scan(vap, 2887 IEEE80211_SCAN_ACTIVE | 2888 IEEE80211_SCAN_NOPICK | 2889 IEEE80211_SCAN_ONCE, 2890 IEEE80211_SCAN_FOREVER, 2891 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2892 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2893 vap->iv_des_nssid, vap->iv_des_ssid); 2894 goto sw_scan; 2895 } 2896 2897 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2898 __func__, error); 2899 } 2900 } 2901 } 2902 2903 static void 2904 lkpi_ic_scan_end(struct ieee80211com *ic) 2905 { 2906 struct lkpi_hw *lhw; 2907 bool is_hw_scan; 2908 2909 lhw = ic->ic_softc; 2910 LKPI_80211_LHW_SCAN_LOCK(lhw); 2911 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 2912 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2913 return; 2914 } 2915 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2916 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2917 2918 if (!is_hw_scan) { 2919 struct ieee80211_scan_state *ss; 2920 struct ieee80211vap *vap; 2921 struct ieee80211_hw *hw; 2922 struct lkpi_vif *lvif; 2923 struct ieee80211_vif *vif; 2924 2925 ss = ic->ic_scan; 2926 vap = ss->ss_vap; 2927 hw = LHW_TO_HW(lhw); 2928 lvif = VAP_TO_LVIF(vap); 2929 vif = LVIF_TO_VIF(lvif); 2930 2931 lkpi_80211_mo_sw_scan_complete(hw, vif); 2932 2933 /* Send PS to stop buffering if n80211 does not for us? */ 2934 2935 if (vap->iv_state == IEEE80211_S_SCAN) 2936 lkpi_hw_conf_idle(hw, true); 2937 } 2938 } 2939 2940 static void 2941 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 2942 unsigned long maxdwell) 2943 { 2944 struct lkpi_hw *lhw; 2945 bool is_hw_scan; 2946 2947 lhw = ss->ss_ic->ic_softc; 2948 LKPI_80211_LHW_SCAN_LOCK(lhw); 2949 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2950 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2951 if (!is_hw_scan) 2952 lhw->ic_scan_curchan(ss, maxdwell); 2953 } 2954 2955 static void 2956 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 2957 { 2958 struct lkpi_hw *lhw; 2959 bool is_hw_scan; 2960 2961 lhw = ss->ss_ic->ic_softc; 2962 LKPI_80211_LHW_SCAN_LOCK(lhw); 2963 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2964 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2965 if (!is_hw_scan) 2966 lhw->ic_scan_mindwell(ss); 2967 } 2968 2969 static void 2970 lkpi_ic_set_channel(struct ieee80211com *ic) 2971 { 2972 struct lkpi_hw *lhw; 2973 struct ieee80211_hw *hw; 2974 struct ieee80211_channel *c; 2975 struct linuxkpi_ieee80211_channel *chan; 2976 int error; 2977 bool hw_scan_running; 2978 2979 lhw = ic->ic_softc; 2980 2981 /* If we do not support (*config)() save us the work. */ 2982 if (lhw->ops->config == NULL) 2983 return; 2984 2985 /* If we have a hw_scan running do not switch channels. */ 2986 LKPI_80211_LHW_SCAN_LOCK(lhw); 2987 hw_scan_running = 2988 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 2989 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 2990 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2991 if (hw_scan_running) 2992 return; 2993 2994 c = ic->ic_curchan; 2995 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2996 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2997 c, lhw->ops->config); 2998 return; 2999 } 3000 3001 chan = lkpi_find_lkpi80211_chan(lhw, c); 3002 if (chan == NULL) { 3003 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3004 c, chan); 3005 return; 3006 } 3007 3008 /* XXX max power for scanning? */ 3009 IMPROVE(); 3010 3011 hw = LHW_TO_HW(lhw); 3012 cfg80211_chandef_create(&hw->conf.chandef, chan, 3013 NL80211_CHAN_NO_HT); 3014 3015 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3016 if (error != 0 && error != EOPNOTSUPP) { 3017 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3018 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3019 /* XXX should we unroll to the previous chandef? */ 3020 IMPROVE(); 3021 } else { 3022 /* Update radiotap channels as well. */ 3023 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3024 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3025 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3026 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3027 } 3028 3029 /* Currently PS is hard coded off! Not sure it belongs here. */ 3030 IMPROVE(); 3031 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3032 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3033 hw->conf.flags &= ~IEEE80211_CONF_PS; 3034 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3035 if (error != 0 && error != EOPNOTSUPP) 3036 ic_printf(ic, "ERROR: %s: config %#0x returned " 3037 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3038 error); 3039 } 3040 } 3041 3042 static struct ieee80211_node * 3043 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3044 const uint8_t mac[IEEE80211_ADDR_LEN]) 3045 { 3046 struct ieee80211com *ic; 3047 struct lkpi_hw *lhw; 3048 struct ieee80211_node *ni; 3049 struct ieee80211_hw *hw; 3050 struct lkpi_sta *lsta; 3051 3052 ic = vap->iv_ic; 3053 lhw = ic->ic_softc; 3054 3055 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3056 if (lhw->ic_node_alloc == NULL) 3057 return (NULL); 3058 3059 ni = lhw->ic_node_alloc(vap, mac); 3060 if (ni == NULL) 3061 return (NULL); 3062 3063 hw = LHW_TO_HW(lhw); 3064 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3065 if (lsta == NULL) { 3066 if (lhw->ic_node_free != NULL) 3067 lhw->ic_node_free(ni); 3068 return (NULL); 3069 } 3070 3071 return (ni); 3072 } 3073 3074 static int 3075 lkpi_ic_node_init(struct ieee80211_node *ni) 3076 { 3077 struct ieee80211com *ic; 3078 struct lkpi_hw *lhw; 3079 struct lkpi_sta *lsta; 3080 int error; 3081 3082 ic = ni->ni_ic; 3083 lhw = ic->ic_softc; 3084 3085 if (lhw->ic_node_init != NULL) { 3086 error = lhw->ic_node_init(ni); 3087 if (error != 0) 3088 return (error); 3089 } 3090 3091 lsta = ni->ni_drv_data; 3092 3093 /* Now take the reference before linking it to the table. */ 3094 lsta->ni = ieee80211_ref_node(ni); 3095 3096 /* XXX-BZ Sync other state over. */ 3097 IMPROVE(); 3098 3099 return (0); 3100 } 3101 3102 static void 3103 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3104 { 3105 struct ieee80211com *ic; 3106 struct lkpi_hw *lhw; 3107 3108 ic = ni->ni_ic; 3109 lhw = ic->ic_softc; 3110 3111 /* XXX-BZ remove from driver, ... */ 3112 IMPROVE(); 3113 3114 if (lhw->ic_node_cleanup != NULL) 3115 lhw->ic_node_cleanup(ni); 3116 } 3117 3118 static void 3119 lkpi_ic_node_free(struct ieee80211_node *ni) 3120 { 3121 struct ieee80211com *ic; 3122 struct lkpi_hw *lhw; 3123 struct lkpi_sta *lsta; 3124 3125 ic = ni->ni_ic; 3126 lhw = ic->ic_softc; 3127 lsta = ni->ni_drv_data; 3128 if (lsta == NULL) 3129 goto out; 3130 3131 /* XXX-BZ free resources, ... */ 3132 IMPROVE(); 3133 3134 /* Flush mbufq (make sure to release ni refs!). */ 3135 #ifdef __notyet__ 3136 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 3137 __func__, lsta, mbufq_len(&lsta->txq))); 3138 #endif 3139 /* Drain taskq. */ 3140 3141 /* Drain sta->txq[] */ 3142 mtx_destroy(&lsta->txq_mtx); 3143 3144 /* Remove lsta if added_to_drv. */ 3145 3146 /* Remove lsta from vif */ 3147 /* Remove ref from lsta node... */ 3148 /* Free lsta. */ 3149 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 3150 3151 out: 3152 if (lhw->ic_node_free != NULL) 3153 lhw->ic_node_free(ni); 3154 } 3155 3156 static int 3157 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3158 const struct ieee80211_bpf_params *params __unused) 3159 { 3160 struct lkpi_sta *lsta; 3161 3162 lsta = ni->ni_drv_data; 3163 3164 /* Queue the packet and enqueue the task to handle it. */ 3165 LKPI_80211_LSTA_LOCK(lsta); 3166 mbufq_enqueue(&lsta->txq, m); 3167 LKPI_80211_LSTA_UNLOCK(lsta); 3168 3169 #ifdef LINUXKPI_DEBUG_80211 3170 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3171 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3172 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3173 mbufq_len(&lsta->txq)); 3174 #endif 3175 3176 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3177 return (0); 3178 } 3179 3180 static void 3181 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3182 { 3183 struct ieee80211_node *ni; 3184 #ifndef LKPI_80211_HW_CRYPTO 3185 struct ieee80211_frame *wh; 3186 #endif 3187 struct ieee80211_key *k; 3188 struct sk_buff *skb; 3189 struct ieee80211com *ic; 3190 struct lkpi_hw *lhw; 3191 struct ieee80211_hw *hw; 3192 struct lkpi_vif *lvif; 3193 struct ieee80211_vif *vif; 3194 struct ieee80211_channel *c; 3195 struct ieee80211_tx_control control; 3196 struct ieee80211_tx_info *info; 3197 struct ieee80211_sta *sta; 3198 struct ieee80211_hdr *hdr; 3199 void *buf; 3200 uint8_t ac, tid; 3201 3202 M_ASSERTPKTHDR(m); 3203 #ifdef LINUXKPI_DEBUG_80211 3204 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3205 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3206 #endif 3207 3208 ni = lsta->ni; 3209 k = NULL; 3210 #ifndef LKPI_80211_HW_CRYPTO 3211 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3212 wh = mtod(m, struct ieee80211_frame *); 3213 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3214 /* Retrieve key for TX && do software encryption. */ 3215 k = ieee80211_crypto_encap(ni, m); 3216 if (k == NULL) { 3217 ieee80211_free_node(ni); 3218 m_freem(m); 3219 return; 3220 } 3221 } 3222 #endif 3223 3224 ic = ni->ni_ic; 3225 lhw = ic->ic_softc; 3226 hw = LHW_TO_HW(lhw); 3227 c = ni->ni_chan; 3228 3229 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3230 struct lkpi_radiotap_tx_hdr *rtap; 3231 3232 rtap = &lhw->rtap_tx; 3233 rtap->wt_flags = 0; 3234 if (k != NULL) 3235 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3236 if (m->m_flags & M_FRAG) 3237 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3238 IMPROVE(); 3239 rtap->wt_rate = 0; 3240 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3241 rtap->wt_chan_freq = htole16(c->ic_freq); 3242 rtap->wt_chan_flags = htole16(c->ic_flags); 3243 } 3244 3245 ieee80211_radiotap_tx(ni->ni_vap, m); 3246 } 3247 3248 /* 3249 * net80211 should handle hw->extra_tx_headroom. 3250 * Though for as long as we are copying we don't mind. 3251 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3252 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3253 */ 3254 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3255 if (skb == NULL) { 3256 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3257 ieee80211_free_node(ni); 3258 m_freem(m); 3259 return; 3260 } 3261 skb_reserve(skb, hw->extra_tx_headroom); 3262 3263 /* XXX-BZ we need a SKB version understanding mbuf. */ 3264 /* Save the mbuf for ieee80211_tx_complete(). */ 3265 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3266 skb->m = m; 3267 #if 0 3268 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3269 #else 3270 buf = skb_put(skb, m->m_pkthdr.len); 3271 m_copydata(m, 0, m->m_pkthdr.len, buf); 3272 #endif 3273 /* Save the ni. */ 3274 m->m_pkthdr.PH_loc.ptr = ni; 3275 3276 lvif = VAP_TO_LVIF(ni->ni_vap); 3277 vif = LVIF_TO_VIF(lvif); 3278 3279 hdr = (void *)skb->data; 3280 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3281 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3282 skb->priority = 0; 3283 ac = IEEE80211_AC_BE; 3284 } else { 3285 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3286 ac = tid_to_mac80211_ac[tid & 7]; 3287 } 3288 skb_set_queue_mapping(skb, ac); 3289 3290 info = IEEE80211_SKB_CB(skb); 3291 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3292 /* Slight delay; probably only happens on scanning so fine? */ 3293 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3294 c = ic->ic_curchan; 3295 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3296 info->hw_queue = vif->hw_queue[ac]; 3297 if (m->m_flags & M_EAPOL) 3298 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3299 info->control.vif = vif; 3300 /* XXX-BZ info->control.rates */ 3301 3302 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3303 if (lsta != NULL) { 3304 sta = LSTA_TO_STA(lsta); 3305 #ifdef LKPI_80211_HW_CRYPTO 3306 info->control.hw_key = lsta->kc; 3307 #endif 3308 } else { 3309 sta = NULL; 3310 } 3311 3312 IMPROVE(); 3313 3314 if (sta != NULL) { 3315 struct lkpi_txq *ltxq; 3316 3317 ltxq = NULL; 3318 if (!ieee80211_is_data_present(hdr->frame_control)) { 3319 if (vif->type == NL80211_IFTYPE_STATION && 3320 lsta->added_to_drv && 3321 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3322 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3323 } else if (lsta->added_to_drv && 3324 sta->txq[skb->priority] != NULL) { 3325 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3326 } 3327 if (ltxq == NULL) 3328 goto ops_tx; 3329 3330 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3331 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3332 3333 skb_queue_tail(<xq->skbq, skb); 3334 #ifdef LINUXKPI_DEBUG_80211 3335 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3336 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3337 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3338 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3339 __func__, __LINE__, 3340 curthread->td_tid, (unsigned int)ticks, 3341 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3342 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3343 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3344 #endif 3345 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3346 return; 3347 } 3348 3349 ops_tx: 3350 #ifdef LINUXKPI_DEBUG_80211 3351 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3352 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3353 "TX ac %d prio %u qmap %u\n", 3354 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3355 skb, ac, skb->priority, skb->qmap); 3356 #endif 3357 memset(&control, 0, sizeof(control)); 3358 control.sta = sta; 3359 3360 lkpi_80211_mo_tx(hw, &control, skb); 3361 return; 3362 } 3363 3364 static void 3365 lkpi_80211_txq_task(void *ctx, int pending) 3366 { 3367 struct lkpi_sta *lsta; 3368 struct mbufq mq; 3369 struct mbuf *m; 3370 3371 lsta = ctx; 3372 3373 #ifdef LINUXKPI_DEBUG_80211 3374 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3375 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3376 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3377 pending, mbufq_len(&lsta->txq)); 3378 #endif 3379 3380 mbufq_init(&mq, IFQ_MAXLEN); 3381 3382 LKPI_80211_LSTA_LOCK(lsta); 3383 mbufq_concat(&mq, &lsta->txq); 3384 LKPI_80211_LSTA_UNLOCK(lsta); 3385 3386 m = mbufq_dequeue(&mq); 3387 while (m != NULL) { 3388 lkpi_80211_txq_tx_one(lsta, m); 3389 m = mbufq_dequeue(&mq); 3390 } 3391 } 3392 3393 static int 3394 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3395 { 3396 3397 /* XXX TODO */ 3398 IMPROVE(); 3399 3400 /* Quick and dirty cheating hack. */ 3401 struct ieee80211_node *ni; 3402 3403 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3404 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3405 } 3406 3407 static void 3408 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3409 int *n, struct ieee80211_channel *c) 3410 { 3411 struct lkpi_hw *lhw; 3412 struct ieee80211_hw *hw; 3413 struct linuxkpi_ieee80211_channel *channels; 3414 uint8_t bands[IEEE80211_MODE_BYTES]; 3415 int chan_flags, error, i, nchans; 3416 3417 /* Channels */ 3418 lhw = ic->ic_softc; 3419 hw = LHW_TO_HW(lhw); 3420 3421 /* NL80211_BAND_2GHZ */ 3422 nchans = 0; 3423 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3424 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3425 if (nchans > 0) { 3426 memset(bands, 0, sizeof(bands)); 3427 chan_flags = 0; 3428 setbit(bands, IEEE80211_MODE_11B); 3429 /* XXX-BZ unclear how to check for 11g. */ 3430 setbit(bands, IEEE80211_MODE_11G); 3431 #ifdef __notyet__ 3432 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3433 setbit(bands, IEEE80211_MODE_11NG); 3434 chan_flags |= NET80211_CBW_FLAG_HT40; 3435 } 3436 #endif 3437 3438 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3439 for (i = 0; i < nchans && *n < maxchan; i++) { 3440 uint32_t nflags = 0; 3441 int cflags = chan_flags; 3442 3443 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3444 ic_printf(ic, "%s: Skipping disabled chan " 3445 "[%u/%u/%#x]\n", __func__, 3446 channels[i].hw_value, 3447 channels[i].center_freq, channels[i].flags); 3448 continue; 3449 } 3450 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3451 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3452 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3453 nflags |= IEEE80211_CHAN_DFS; 3454 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3455 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3456 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3457 cflags &= ~NET80211_CBW_FLAG_VHT80; 3458 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3459 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3460 cflags &= ~NET80211_CBW_FLAG_HT40; 3461 3462 error = ieee80211_add_channel_cbw(c, maxchan, n, 3463 channels[i].hw_value, channels[i].center_freq, 3464 channels[i].max_power, 3465 nflags, bands, chan_flags); 3466 /* net80211::ENOBUFS: *n >= maxchans */ 3467 if (error != 0 && error != ENOBUFS) 3468 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3469 "returned error %d\n", 3470 __func__, channels[i].hw_value, 3471 channels[i].center_freq, channels[i].flags, 3472 nflags, chan_flags, cflags, error); 3473 if (error != 0) 3474 break; 3475 } 3476 } 3477 3478 /* NL80211_BAND_5GHZ */ 3479 nchans = 0; 3480 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3481 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3482 if (nchans > 0) { 3483 memset(bands, 0, sizeof(bands)); 3484 chan_flags = 0; 3485 setbit(bands, IEEE80211_MODE_11A); 3486 #ifdef __not_yet__ 3487 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3488 setbit(bands, IEEE80211_MODE_11NA); 3489 chan_flags |= NET80211_CBW_FLAG_HT40; 3490 } 3491 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3492 3493 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3494 ic->ic_vhtcaps = 3495 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3496 3497 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3498 chan_flags |= NET80211_CBW_FLAG_VHT80; 3499 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3500 ic->ic_vhtcaps)) 3501 chan_flags |= NET80211_CBW_FLAG_VHT160; 3502 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3503 ic->ic_vhtcaps)) 3504 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3505 } 3506 #endif 3507 3508 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3509 for (i = 0; i < nchans && *n < maxchan; i++) { 3510 uint32_t nflags = 0; 3511 int cflags = chan_flags; 3512 3513 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3514 ic_printf(ic, "%s: Skipping disabled chan " 3515 "[%u/%u/%#x]\n", __func__, 3516 channels[i].hw_value, 3517 channels[i].center_freq, channels[i].flags); 3518 continue; 3519 } 3520 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3521 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3522 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3523 nflags |= IEEE80211_CHAN_DFS; 3524 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3525 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3526 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3527 cflags &= ~NET80211_CBW_FLAG_VHT80; 3528 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3529 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3530 cflags &= ~NET80211_CBW_FLAG_HT40; 3531 3532 error = ieee80211_add_channel_cbw(c, maxchan, n, 3533 channels[i].hw_value, channels[i].center_freq, 3534 channels[i].max_power, 3535 nflags, bands, chan_flags); 3536 /* net80211::ENOBUFS: *n >= maxchans */ 3537 if (error != 0 && error != ENOBUFS) 3538 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3539 "returned error %d\n", 3540 __func__, channels[i].hw_value, 3541 channels[i].center_freq, channels[i].flags, 3542 nflags, chan_flags, cflags, error); 3543 if (error != 0) 3544 break; 3545 } 3546 } 3547 } 3548 3549 static void * 3550 lkpi_ieee80211_ifalloc(void) 3551 { 3552 struct ieee80211com *ic; 3553 3554 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3555 if (ic == NULL) 3556 return (NULL); 3557 3558 /* Setting these happens later when we have device information. */ 3559 ic->ic_softc = NULL; 3560 ic->ic_name = "linuxkpi"; 3561 3562 return (ic); 3563 } 3564 3565 struct ieee80211_hw * 3566 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3567 { 3568 struct ieee80211_hw *hw; 3569 struct lkpi_hw *lhw; 3570 struct wiphy *wiphy; 3571 int ac; 3572 3573 /* Get us and the driver data also allocated. */ 3574 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3575 if (wiphy == NULL) 3576 return (NULL); 3577 3578 lhw = wiphy_priv(wiphy); 3579 lhw->ops = ops; 3580 3581 LKPI_80211_LHW_LOCK_INIT(lhw); 3582 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 3583 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3584 TAILQ_INIT(&lhw->lvif_head); 3585 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3586 lhw->txq_generation[ac] = 1; 3587 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 3588 } 3589 3590 /* 3591 * XXX-BZ TODO make sure there is a "_null" function to all ops 3592 * not initialized. 3593 */ 3594 hw = LHW_TO_HW(lhw); 3595 hw->wiphy = wiphy; 3596 hw->conf.flags |= IEEE80211_CONF_IDLE; 3597 hw->priv = (void *)(lhw + 1); 3598 3599 /* BSD Specific. */ 3600 lhw->ic = lkpi_ieee80211_ifalloc(); 3601 if (lhw->ic == NULL) { 3602 ieee80211_free_hw(hw); 3603 return (NULL); 3604 } 3605 3606 IMPROVE(); 3607 3608 return (hw); 3609 } 3610 3611 void 3612 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3613 { 3614 struct lkpi_hw *lhw; 3615 3616 lhw = HW_TO_LHW(hw); 3617 free(lhw->ic, M_LKPI80211); 3618 lhw->ic = NULL; 3619 3620 /* Cleanup more of lhw here or in wiphy_free()? */ 3621 sx_destroy(&lhw->lvif_sx); 3622 LKPI_80211_LHW_LOCK_DESTROY(lhw); 3623 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 3624 IMPROVE(); 3625 } 3626 3627 void 3628 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3629 { 3630 struct lkpi_hw *lhw; 3631 struct ieee80211com *ic; 3632 3633 lhw = HW_TO_LHW(hw); 3634 ic = lhw->ic; 3635 3636 /* Now set a proper name before ieee80211_ifattach(). */ 3637 ic->ic_softc = lhw; 3638 ic->ic_name = name; 3639 3640 /* XXX-BZ do we also need to set wiphy name? */ 3641 } 3642 3643 struct ieee80211_hw * 3644 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3645 { 3646 struct lkpi_hw *lhw; 3647 3648 lhw = wiphy_priv(wiphy); 3649 return (LHW_TO_HW(lhw)); 3650 } 3651 3652 static void 3653 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3654 { 3655 struct ieee80211com *ic; 3656 3657 ic = lhw->ic; 3658 ieee80211_radiotap_attach(ic, 3659 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3660 LKPI_RTAP_TX_FLAGS_PRESENT, 3661 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3662 LKPI_RTAP_RX_FLAGS_PRESENT); 3663 } 3664 3665 int 3666 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3667 { 3668 struct ieee80211com *ic; 3669 struct lkpi_hw *lhw; 3670 int band, i; 3671 3672 lhw = HW_TO_LHW(hw); 3673 ic = lhw->ic; 3674 3675 /* We do it this late as wiphy->dev should be set for the name. */ 3676 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3677 if (lhw->workq == NULL) 3678 return (-EAGAIN); 3679 3680 /* XXX-BZ figure this out how they count his... */ 3681 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3682 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3683 hw->wiphy->perm_addr); 3684 } else if (hw->wiphy->n_addresses > 0) { 3685 /* We take the first one. */ 3686 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3687 hw->wiphy->addresses[0].addr); 3688 } else { 3689 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3690 } 3691 3692 #ifdef __not_yet__ 3693 /* See comment in lkpi_80211_txq_tx_one(). */ 3694 ic->ic_headroom = hw->extra_tx_headroom; 3695 #endif 3696 3697 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3698 ic->ic_opmode = IEEE80211_M_STA; 3699 3700 /* Set device capabilities. */ 3701 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3702 ic->ic_caps = 3703 IEEE80211_C_STA | 3704 IEEE80211_C_MONITOR | 3705 IEEE80211_C_WPA | /* WPA/RSN */ 3706 #ifdef LKPI_80211_WME 3707 IEEE80211_C_WME | 3708 #endif 3709 #if 0 3710 IEEE80211_C_PMGT | 3711 #endif 3712 IEEE80211_C_SHSLOT | /* short slot time supported */ 3713 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3714 ; 3715 #if 0 3716 /* Scanning is a different kind of beast to re-work. */ 3717 ic->ic_caps |= IEEE80211_C_BGSCAN; 3718 #endif 3719 if (lhw->ops->hw_scan) { 3720 /* 3721 * Advertise full-offload scanning. 3722 * 3723 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3724 * we essentially disable hw_scan for all drivers not setting 3725 * the flag. 3726 */ 3727 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3728 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 3729 } 3730 3731 #ifdef __notyet__ 3732 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3733 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3734 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3735 | IEEE80211_HTCAP_MAXAMSDU_3839 3736 /* max A-MSDU length */ 3737 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3738 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3739 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3740 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3741 #endif 3742 3743 /* 3744 * The wiphy variables report bitmasks of avail antennas. 3745 * (*get_antenna) get the current bitmask sets which can be 3746 * altered by (*set_antenna) for some drivers. 3747 * XXX-BZ will the count alone do us much good long-term in net80211? 3748 */ 3749 if (hw->wiphy->available_antennas_rx || 3750 hw->wiphy->available_antennas_tx) { 3751 uint32_t rxs, txs; 3752 3753 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 3754 ic->ic_rxstream = bitcount32(rxs); 3755 ic->ic_txstream = bitcount32(txs); 3756 } 3757 } 3758 3759 ic->ic_cryptocaps = 0; 3760 #ifdef LKPI_80211_HW_CRYPTO 3761 if (hw->wiphy->n_cipher_suites > 0) { 3762 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3763 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3764 hw->wiphy->cipher_suites[i]); 3765 } 3766 #endif 3767 3768 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3769 ic->ic_channels); 3770 3771 ieee80211_ifattach(ic); 3772 3773 ic->ic_update_mcast = lkpi_ic_update_mcast; 3774 ic->ic_update_promisc = lkpi_ic_update_promisc; 3775 ic->ic_update_chw = lkpi_ic_update_chw; 3776 ic->ic_parent = lkpi_ic_parent; 3777 ic->ic_scan_start = lkpi_ic_scan_start; 3778 ic->ic_scan_end = lkpi_ic_scan_end; 3779 ic->ic_set_channel = lkpi_ic_set_channel; 3780 ic->ic_transmit = lkpi_ic_transmit; 3781 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3782 ic->ic_vap_create = lkpi_ic_vap_create; 3783 ic->ic_vap_delete = lkpi_ic_vap_delete; 3784 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3785 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3786 3787 lhw->ic_scan_curchan = ic->ic_scan_curchan; 3788 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 3789 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 3790 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 3791 3792 lhw->ic_node_alloc = ic->ic_node_alloc; 3793 ic->ic_node_alloc = lkpi_ic_node_alloc; 3794 lhw->ic_node_init = ic->ic_node_init; 3795 ic->ic_node_init = lkpi_ic_node_init; 3796 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3797 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3798 lhw->ic_node_free = ic->ic_node_free; 3799 ic->ic_node_free = lkpi_ic_node_free; 3800 3801 lkpi_radiotap_attach(lhw); 3802 3803 /* 3804 * Assign the first possible channel for now; seems Realtek drivers 3805 * expect one. 3806 * Also remember the amount of bands we support and the most rates 3807 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3808 */ 3809 lhw->supbands = lhw->max_rates = 0; 3810 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3811 struct ieee80211_supported_band *supband; 3812 struct linuxkpi_ieee80211_channel *channels; 3813 3814 supband = hw->wiphy->bands[band]; 3815 if (supband == NULL || supband->n_channels == 0) 3816 continue; 3817 3818 lhw->supbands++; 3819 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3820 3821 /* If we have a channel, we need to keep counting supbands. */ 3822 if (hw->conf.chandef.chan != NULL) 3823 continue; 3824 3825 channels = supband->channels; 3826 for (i = 0; i < supband->n_channels; i++) { 3827 3828 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3829 continue; 3830 3831 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3832 NL80211_CHAN_NO_HT); 3833 break; 3834 } 3835 } 3836 3837 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3838 3839 /* Make sure we do not support more than net80211 is willing to take. */ 3840 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3841 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3842 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3843 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3844 } 3845 3846 /* 3847 * The maximum supported bitrates on any band + size for 3848 * DSSS Parameter Set give our per-band IE size. 3849 * XXX-BZ FIXME add HT VHT ... later 3850 * SSID is the responsibility of the driver and goes on the side. 3851 * The user specified bits coming from the vap go into the 3852 * "common ies" fields. 3853 */ 3854 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3855 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3856 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3857 /* 3858 * net80211 does not seem to support the DSSS Parameter Set but some of 3859 * the drivers insert it so calculate the extra fixed space in. 3860 */ 3861 lhw->scan_ie_len += 2 + 1; 3862 3863 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3864 if (hw->wiphy->max_scan_ie_len > 0) 3865 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3866 3867 if (bootverbose) 3868 ieee80211_announce(ic); 3869 3870 return (0); 3871 } 3872 3873 void 3874 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3875 { 3876 struct lkpi_hw *lhw; 3877 struct ieee80211com *ic; 3878 3879 lhw = HW_TO_LHW(hw); 3880 ic = lhw->ic; 3881 ieee80211_ifdetach(ic); 3882 } 3883 3884 void 3885 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3886 enum ieee80211_iface_iter flags, 3887 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3888 void *arg) 3889 { 3890 struct lkpi_hw *lhw; 3891 struct lkpi_vif *lvif; 3892 struct ieee80211_vif *vif; 3893 bool active, atomic, nin_drv; 3894 3895 lhw = HW_TO_LHW(hw); 3896 3897 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3898 IEEE80211_IFACE_ITER_RESUME_ALL| 3899 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3900 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3901 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3902 __func__, flags); 3903 } 3904 3905 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 3906 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3907 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3908 3909 if (atomic) 3910 LKPI_80211_LHW_LVIF_LOCK(lhw); 3911 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3912 struct ieee80211vap *vap; 3913 3914 vif = LVIF_TO_VIF(lvif); 3915 3916 /* 3917 * If we want "active" interfaces, we need to distinguish on 3918 * whether the driver knows about them or not to be able to 3919 * handle the "resume" case correctly. Skip the ones the 3920 * driver does not know about. 3921 */ 3922 if (active && !lvif->added_to_drv && 3923 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3924 continue; 3925 3926 /* 3927 * If we shall skip interfaces not added to the driver do so 3928 * if we haven't yet. 3929 */ 3930 if (nin_drv && !lvif->added_to_drv) 3931 continue; 3932 3933 /* 3934 * Run the iterator function if we are either not asking 3935 * asking for active only or if the VAP is "running". 3936 */ 3937 /* XXX-BZ probably should have state in the lvif as well. */ 3938 vap = LVIF_TO_VAP(lvif); 3939 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3940 iterfunc(arg, vif->addr, vif); 3941 } 3942 if (atomic) 3943 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3944 } 3945 3946 void 3947 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3948 struct ieee80211_vif *vif, 3949 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3950 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3951 void *arg) 3952 { 3953 3954 UNIMPLEMENTED; 3955 } 3956 3957 void 3958 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3959 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3960 void *), 3961 void *arg) 3962 { 3963 3964 UNIMPLEMENTED; 3965 } 3966 3967 void 3968 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3969 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3970 { 3971 struct lkpi_hw *lhw; 3972 struct lkpi_vif *lvif; 3973 struct lkpi_sta *lsta; 3974 struct ieee80211_sta *sta; 3975 3976 KASSERT(hw != NULL && iterfunc != NULL, 3977 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3978 3979 lhw = HW_TO_LHW(hw); 3980 3981 LKPI_80211_LHW_LVIF_LOCK(lhw); 3982 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3983 3984 LKPI_80211_LVIF_LOCK(lvif); 3985 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3986 if (!lsta->added_to_drv) 3987 continue; 3988 sta = LSTA_TO_STA(lsta); 3989 iterfunc(arg, sta); 3990 } 3991 LKPI_80211_LVIF_UNLOCK(lvif); 3992 } 3993 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3994 } 3995 3996 int 3997 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3998 struct linuxkpi_ieee80211_regdomain *regd) 3999 { 4000 struct lkpi_hw *lhw; 4001 struct ieee80211com *ic; 4002 struct ieee80211_regdomain *rd; 4003 4004 lhw = wiphy_priv(wiphy); 4005 ic = lhw->ic; 4006 4007 rd = &ic->ic_regdomain; 4008 if (rd->isocc[0] == '\0') { 4009 rd->isocc[0] = regd->alpha2[0]; 4010 rd->isocc[1] = regd->alpha2[1]; 4011 } 4012 4013 TODO(); 4014 /* XXX-BZ finish the rest. */ 4015 4016 return (0); 4017 } 4018 4019 void 4020 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4021 struct cfg80211_scan_info *info) 4022 { 4023 struct lkpi_hw *lhw; 4024 struct ieee80211com *ic; 4025 struct ieee80211_scan_state *ss; 4026 4027 lhw = wiphy_priv(hw->wiphy); 4028 ic = lhw->ic; 4029 ss = ic->ic_scan; 4030 4031 ieee80211_scan_done(ss->ss_vap); 4032 4033 LKPI_80211_LHW_SCAN_LOCK(lhw); 4034 free(lhw->hw_req, M_LKPI80211); 4035 lhw->hw_req = NULL; 4036 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4037 wakeup(lhw); 4038 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4039 4040 return; 4041 } 4042 4043 /* For %list see comment towards the end of the function. */ 4044 void 4045 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 4046 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 4047 struct list_head *list __unused) 4048 { 4049 struct epoch_tracker et; 4050 struct lkpi_hw *lhw; 4051 struct ieee80211com *ic; 4052 struct mbuf *m; 4053 struct skb_shared_info *shinfo; 4054 struct ieee80211_rx_status *rx_status; 4055 struct ieee80211_rx_stats rx_stats; 4056 struct ieee80211_node *ni; 4057 struct ieee80211vap *vap; 4058 struct ieee80211_hdr *hdr; 4059 struct lkpi_sta *lsta; 4060 int i, offset, ok; 4061 int8_t rssi; 4062 bool is_beacon; 4063 4064 if (skb->len < 2) { 4065 /* Need 80211 stats here. */ 4066 IMPROVE(); 4067 goto err; 4068 } 4069 4070 /* 4071 * For now do the data copy; we can later improve things. Might even 4072 * have an mbuf backing the skb data then? 4073 */ 4074 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 4075 if (m == NULL) 4076 goto err; 4077 m_copyback(m, 0, skb->tail - skb->data, skb->data); 4078 4079 shinfo = skb_shinfo(skb); 4080 offset = m->m_len; 4081 for (i = 0; i < shinfo->nr_frags; i++) { 4082 m_copyback(m, offset, shinfo->frags[i].size, 4083 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 4084 shinfo->frags[i].offset); 4085 offset += shinfo->frags[i].size; 4086 } 4087 4088 rx_status = IEEE80211_SKB_RXCB(skb); 4089 4090 hdr = (void *)skb->data; 4091 is_beacon = ieee80211_is_beacon(hdr->frame_control); 4092 4093 #ifdef LINUXKPI_DEBUG_80211 4094 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 4095 goto no_trace_beacons; 4096 4097 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4098 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 4099 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 4100 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4101 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4102 shinfo, shinfo->nr_frags, 4103 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4104 4105 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4106 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4107 4108 /* Implement a dump_rxcb() !!! */ 4109 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4110 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4111 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4112 __func__, 4113 (uintmax_t)rx_status->boottime_ns, 4114 (uintmax_t)rx_status->mactime, 4115 rx_status->device_timestamp, 4116 rx_status->flag, 4117 rx_status->freq, 4118 rx_status->bw, 4119 rx_status->encoding, 4120 rx_status->ampdu_reference, 4121 rx_status->band, 4122 rx_status->chains, 4123 rx_status->chain_signal[0], 4124 rx_status->chain_signal[1], 4125 rx_status->chain_signal[2], 4126 rx_status->chain_signal[3], 4127 rx_status->signal, 4128 rx_status->enc_flags, 4129 rx_status->he_dcm, 4130 rx_status->he_gi, 4131 rx_status->he_ru, 4132 rx_status->zero_length_psdu_type, 4133 rx_status->nss, 4134 rx_status->rate_idx); 4135 no_trace_beacons: 4136 #endif 4137 4138 memset(&rx_stats, 0, sizeof(rx_stats)); 4139 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 4140 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 4141 rx_stats.c_nf = -96; 4142 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 4143 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 4144 rssi = rx_status->signal; 4145 else 4146 rssi = rx_stats.c_nf; 4147 /* 4148 * net80211 signal strength data are in .5 dBm units relative to 4149 * the current noise floor (see comment in ieee80211_node.h). 4150 */ 4151 rssi -= rx_stats.c_nf; 4152 rx_stats.c_rssi = rssi * 2; 4153 rx_stats.r_flags |= IEEE80211_R_BAND; 4154 rx_stats.c_band = 4155 lkpi_nl80211_band_to_net80211_band(rx_status->band); 4156 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 4157 rx_stats.c_freq = rx_status->freq; 4158 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 4159 4160 /* XXX (*sta_statistics)() to get to some of that? */ 4161 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 4162 4163 lhw = HW_TO_LHW(hw); 4164 ic = lhw->ic; 4165 4166 ok = ieee80211_add_rx_params(m, &rx_stats); 4167 if (ok == 0) { 4168 m_freem(m); 4169 counter_u64_add(ic->ic_ierrors, 1); 4170 goto err; 4171 } 4172 4173 if (sta != NULL) { 4174 lsta = STA_TO_LSTA(sta); 4175 ni = ieee80211_ref_node(lsta->ni); 4176 } else { 4177 struct ieee80211_frame_min *wh; 4178 4179 wh = mtod(m, struct ieee80211_frame_min *); 4180 ni = ieee80211_find_rxnode(ic, wh); 4181 if (ni != NULL) 4182 lsta = ni->ni_drv_data; 4183 } 4184 4185 if (ni != NULL) 4186 vap = ni->ni_vap; 4187 else 4188 /* 4189 * XXX-BZ can we improve this by looking at the frame hdr 4190 * or other meta-data passed up? 4191 */ 4192 vap = TAILQ_FIRST(&ic->ic_vaps); 4193 4194 #ifdef LINUXKPI_DEBUG_80211 4195 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4196 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 4197 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 4198 ni, vap, is_beacon ? " beacon" : ""); 4199 #endif 4200 4201 if (ni != NULL && vap != NULL && is_beacon && 4202 rx_status->device_timestamp > 0 && 4203 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 4204 struct lkpi_vif *lvif; 4205 struct ieee80211_vif *vif; 4206 struct ieee80211_frame *wh; 4207 4208 wh = mtod(m, struct ieee80211_frame *); 4209 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 4210 goto skip_device_ts; 4211 4212 lvif = VAP_TO_LVIF(vap); 4213 vif = LVIF_TO_VIF(lvif); 4214 4215 IMPROVE("TIMING_BEACON_ONLY?"); 4216 /* mac80211 specific (not net80211) so keep it here. */ 4217 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 4218 /* 4219 * net80211 should take care of the other information (sync_tsf, 4220 * sync_dtim_count) as otherwise we need to parse the beacon. 4221 */ 4222 } 4223 skip_device_ts: 4224 4225 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 4226 ieee80211_radiotap_active_vap(vap)) { 4227 struct lkpi_radiotap_rx_hdr *rtap; 4228 4229 rtap = &lhw->rtap_rx; 4230 rtap->wr_tsft = rx_status->device_timestamp; 4231 rtap->wr_flags = 0; 4232 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 4233 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 4234 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 4235 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 4236 #if 0 /* .. or it does not given we strip it below. */ 4237 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4238 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 4239 #endif 4240 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 4241 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 4242 rtap->wr_rate = 0; 4243 IMPROVE(); 4244 /* XXX TODO status->encoding / rate_index / bw */ 4245 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4246 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4247 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4248 rtap->wr_dbm_antsignal = rssi; 4249 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4250 } 4251 4252 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4253 m_adj(m, -IEEE80211_CRC_LEN); 4254 4255 #if 0 4256 if (list != NULL) { 4257 /* 4258 * Normally this would be queued up and delivered by 4259 * netif_receive_skb_list(), napi_gro_receive(), or the like. 4260 * See mt76::mac80211.c as only current possible consumer. 4261 */ 4262 IMPROVE("we simply pass the packet to net80211 to deal with."); 4263 } 4264 #endif 4265 4266 NET_EPOCH_ENTER(et); 4267 if (ni != NULL) { 4268 ok = ieee80211_input_mimo(ni, m); 4269 ieee80211_free_node(ni); 4270 if (ok < 0) 4271 m_freem(m); 4272 } else { 4273 ok = ieee80211_input_mimo_all(ic, m); 4274 /* mbuf got consumed. */ 4275 } 4276 NET_EPOCH_EXIT(et); 4277 4278 #ifdef LINUXKPI_DEBUG_80211 4279 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4280 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4281 #endif 4282 4283 IMPROVE(); 4284 4285 err: 4286 /* The skb is ours so we can free it :-) */ 4287 kfree_skb(skb); 4288 } 4289 4290 uint8_t 4291 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4292 { 4293 const struct ieee80211_frame *wh; 4294 uint8_t tid; 4295 4296 /* Linux seems to assume this is a QOS-Data-Frame */ 4297 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4298 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4299 hdr->frame_control)); 4300 4301 wh = (const struct ieee80211_frame *)hdr; 4302 tid = ieee80211_gettid(wh); 4303 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4304 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4305 4306 return (tid); 4307 } 4308 4309 struct wiphy * 4310 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4311 { 4312 struct lkpi_wiphy *lwiphy; 4313 4314 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4315 if (lwiphy == NULL) 4316 return (NULL); 4317 lwiphy->ops = ops; 4318 4319 /* XXX TODO */ 4320 return (LWIPHY_TO_WIPHY(lwiphy)); 4321 } 4322 4323 void 4324 linuxkpi_wiphy_free(struct wiphy *wiphy) 4325 { 4326 struct lkpi_wiphy *lwiphy; 4327 4328 if (wiphy == NULL) 4329 return; 4330 4331 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4332 kfree(lwiphy); 4333 } 4334 4335 uint32_t 4336 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4337 enum nl80211_band band) 4338 { 4339 4340 switch (band) { 4341 case NL80211_BAND_2GHZ: 4342 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4343 break; 4344 case NL80211_BAND_5GHZ: 4345 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4346 break; 4347 default: 4348 /* XXX abort, retry, error, panic? */ 4349 break; 4350 } 4351 4352 return (0); 4353 } 4354 4355 uint32_t 4356 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4357 { 4358 4359 return (ieee80211_mhz2ieee(freq, 0)); 4360 } 4361 4362 static struct lkpi_sta * 4363 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4364 { 4365 struct lkpi_sta *lsta, *temp; 4366 4367 LKPI_80211_LVIF_LOCK(lvif); 4368 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4369 if (lsta->ni == ni) { 4370 LKPI_80211_LVIF_UNLOCK(lvif); 4371 return (lsta); 4372 } 4373 } 4374 LKPI_80211_LVIF_UNLOCK(lvif); 4375 4376 return (NULL); 4377 } 4378 4379 struct ieee80211_sta * 4380 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4381 { 4382 struct lkpi_vif *lvif; 4383 struct lkpi_sta *lsta, *temp; 4384 struct ieee80211_sta *sta; 4385 4386 lvif = VIF_TO_LVIF(vif); 4387 4388 LKPI_80211_LVIF_LOCK(lvif); 4389 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4390 sta = LSTA_TO_STA(lsta); 4391 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4392 LKPI_80211_LVIF_UNLOCK(lvif); 4393 return (sta); 4394 } 4395 } 4396 LKPI_80211_LVIF_UNLOCK(lvif); 4397 return (NULL); 4398 } 4399 4400 struct ieee80211_sta * 4401 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4402 const uint8_t *addr, const uint8_t *ourvifaddr) 4403 { 4404 struct lkpi_hw *lhw; 4405 struct lkpi_vif *lvif; 4406 struct lkpi_sta *lsta; 4407 struct ieee80211_vif *vif; 4408 struct ieee80211_sta *sta; 4409 4410 lhw = wiphy_priv(hw->wiphy); 4411 sta = NULL; 4412 4413 LKPI_80211_LHW_LVIF_LOCK(lhw); 4414 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4415 4416 /* XXX-BZ check our address from the vif. */ 4417 4418 vif = LVIF_TO_VIF(lvif); 4419 if (ourvifaddr != NULL && 4420 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4421 continue; 4422 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4423 if (sta != NULL) 4424 break; 4425 } 4426 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4427 4428 if (sta != NULL) { 4429 lsta = STA_TO_LSTA(sta); 4430 if (!lsta->added_to_drv) 4431 return (NULL); 4432 } 4433 4434 return (sta); 4435 } 4436 4437 struct sk_buff * 4438 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4439 struct ieee80211_txq *txq) 4440 { 4441 struct lkpi_txq *ltxq; 4442 struct lkpi_vif *lvif; 4443 struct sk_buff *skb; 4444 4445 skb = NULL; 4446 ltxq = TXQ_TO_LTXQ(txq); 4447 ltxq->seen_dequeue = true; 4448 4449 if (ltxq->stopped) 4450 goto stopped; 4451 4452 lvif = VIF_TO_LVIF(ltxq->txq.vif); 4453 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 4454 ltxq->stopped = true; 4455 goto stopped; 4456 } 4457 4458 skb = skb_dequeue(<xq->skbq); 4459 4460 stopped: 4461 return (skb); 4462 } 4463 4464 void 4465 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4466 unsigned long *frame_cnt, unsigned long *byte_cnt) 4467 { 4468 struct lkpi_txq *ltxq; 4469 struct sk_buff *skb; 4470 unsigned long fc, bc; 4471 4472 ltxq = TXQ_TO_LTXQ(txq); 4473 4474 fc = bc = 0; 4475 skb_queue_walk(<xq->skbq, skb) { 4476 fc++; 4477 bc += skb->len; 4478 } 4479 if (frame_cnt) 4480 *frame_cnt = fc; 4481 if (byte_cnt) 4482 *byte_cnt = bc; 4483 4484 /* Validate that this is doing the correct thing. */ 4485 /* Should we keep track on en/dequeue? */ 4486 IMPROVE(); 4487 } 4488 4489 /* 4490 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4491 * The latter tries to derive the success status from the info flags 4492 * passed back from the driver. rawx_mit() saves the ni on the m and the 4493 * m on the skb for us to be able to give feedback to net80211. 4494 */ 4495 static void 4496 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4497 int status) 4498 { 4499 struct ieee80211_node *ni; 4500 struct mbuf *m; 4501 4502 m = skb->m; 4503 skb->m = NULL; 4504 4505 if (m != NULL) { 4506 ni = m->m_pkthdr.PH_loc.ptr; 4507 /* Status: 0 is ok, != 0 is error. */ 4508 ieee80211_tx_complete(ni, m, status); 4509 /* ni & mbuf were consumed. */ 4510 } 4511 } 4512 4513 void 4514 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4515 int status) 4516 { 4517 4518 _lkpi_ieee80211_free_txskb(hw, skb, status); 4519 kfree_skb(skb); 4520 } 4521 4522 void 4523 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 4524 struct ieee80211_tx_status *txstat) 4525 { 4526 struct sk_buff *skb; 4527 struct ieee80211_tx_info *info; 4528 struct ieee80211_ratectl_tx_status txs; 4529 struct ieee80211_node *ni; 4530 int status; 4531 4532 skb = txstat->skb; 4533 if (skb->m != NULL) { 4534 struct mbuf *m; 4535 4536 m = skb->m; 4537 ni = m->m_pkthdr.PH_loc.ptr; 4538 memset(&txs, 0, sizeof(txs)); 4539 } else { 4540 ni = NULL; 4541 } 4542 4543 info = txstat->info; 4544 if (info->flags & IEEE80211_TX_STAT_ACK) { 4545 status = 0; /* No error. */ 4546 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4547 } else { 4548 status = 1; 4549 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4550 } 4551 4552 if (ni != NULL) { 4553 int ridx __unused; 4554 #ifdef LINUXKPI_DEBUG_80211 4555 int old_rate; 4556 4557 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4558 #endif 4559 txs.pktlen = skb->len; 4560 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4561 if (info->status.rates[0].count > 1) { 4562 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4563 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4564 } 4565 #if 0 /* Unused in net80211 currently. */ 4566 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 4567 txs.final_rate = info->status.rates[0].idx; 4568 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4569 #endif 4570 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 4571 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4572 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4573 } 4574 4575 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4576 ieee80211_ratectl_tx_complete(ni, &txs); 4577 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4578 4579 #ifdef LINUXKPI_DEBUG_80211 4580 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4581 printf("TX-RATE: %s: old %d new %d ridx %d, " 4582 "long_retries %d\n", __func__, 4583 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4584 ridx, txs.long_retries); 4585 } 4586 #endif 4587 } 4588 4589 #ifdef LINUXKPI_DEBUG_80211 4590 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4591 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4592 "band %u hw_queue %u tx_time_est %d : " 4593 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4594 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4595 "tx_time %u flags %#x " 4596 "status_driver_data [ %p %p ]\n", 4597 __func__, hw, skb, status, info->flags, 4598 info->band, info->hw_queue, info->tx_time_est, 4599 info->status.rates[0].idx, info->status.rates[0].count, 4600 info->status.rates[0].flags, 4601 info->status.rates[1].idx, info->status.rates[1].count, 4602 info->status.rates[1].flags, 4603 info->status.rates[2].idx, info->status.rates[2].count, 4604 info->status.rates[2].flags, 4605 info->status.rates[3].idx, info->status.rates[3].count, 4606 info->status.rates[3].flags, 4607 info->status.ack_signal, info->status.ampdu_ack_len, 4608 info->status.ampdu_len, info->status.antenna, 4609 info->status.tx_time, info->status.flags, 4610 info->status.status_driver_data[0], 4611 info->status.status_driver_data[1]); 4612 #endif 4613 4614 if (txstat->free_list) { 4615 _lkpi_ieee80211_free_txskb(hw, skb, status); 4616 list_add_tail(&skb->list, txstat->free_list); 4617 } else { 4618 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4619 } 4620 } 4621 4622 void 4623 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4624 { 4625 struct ieee80211_tx_status status; 4626 4627 memset(&status, 0, sizeof(status)); 4628 status.info = IEEE80211_SKB_CB(skb); 4629 status.skb = skb; 4630 /* sta, n_rates, rates, free_list? */ 4631 4632 ieee80211_tx_status_ext(hw, &status); 4633 } 4634 4635 /* 4636 * This is an internal bandaid for the moment for the way we glue 4637 * skbs and mbufs together for TX. Once we have skbs backed by 4638 * mbufs this should go away. 4639 * This is a public function but kept on the private KPI (lkpi_) 4640 * and is not exposed by a header file. 4641 */ 4642 static void 4643 lkpi_ieee80211_free_skb_mbuf(void *p) 4644 { 4645 struct ieee80211_node *ni; 4646 struct mbuf *m; 4647 4648 if (p == NULL) 4649 return; 4650 4651 m = (struct mbuf *)p; 4652 M_ASSERTPKTHDR(m); 4653 4654 ni = m->m_pkthdr.PH_loc.ptr; 4655 m->m_pkthdr.PH_loc.ptr = NULL; 4656 if (ni != NULL) 4657 ieee80211_free_node(ni); 4658 m_freem(m); 4659 } 4660 4661 void 4662 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4663 struct delayed_work *w, int delay) 4664 { 4665 struct lkpi_hw *lhw; 4666 4667 /* Need to make sure hw is in a stable (non-suspended) state. */ 4668 IMPROVE(); 4669 4670 lhw = HW_TO_LHW(hw); 4671 queue_delayed_work(lhw->workq, w, delay); 4672 } 4673 4674 void 4675 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4676 struct work_struct *w) 4677 { 4678 struct lkpi_hw *lhw; 4679 4680 /* Need to make sure hw is in a stable (non-suspended) state. */ 4681 IMPROVE(); 4682 4683 lhw = HW_TO_LHW(hw); 4684 queue_work(lhw->workq, w); 4685 } 4686 4687 struct sk_buff * 4688 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4689 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4690 { 4691 struct sk_buff *skb; 4692 struct ieee80211_frame *wh; 4693 uint8_t *p; 4694 size_t len; 4695 4696 len = sizeof(*wh); 4697 len += 2 + ssid_len; 4698 4699 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4700 if (skb == NULL) 4701 return (NULL); 4702 4703 skb_reserve(skb, hw->extra_tx_headroom); 4704 4705 wh = skb_put_zero(skb, sizeof(*wh)); 4706 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4707 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4708 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4709 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4710 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4711 4712 p = skb_put(skb, 2 + ssid_len); 4713 *p++ = IEEE80211_ELEMID_SSID; 4714 *p++ = ssid_len; 4715 if (ssid_len > 0) 4716 memcpy(p, ssid, ssid_len); 4717 4718 return (skb); 4719 } 4720 4721 struct sk_buff * 4722 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4723 struct ieee80211_vif *vif) 4724 { 4725 struct lkpi_vif *lvif; 4726 struct ieee80211vap *vap; 4727 struct sk_buff *skb; 4728 struct ieee80211_frame_pspoll *psp; 4729 uint16_t v; 4730 4731 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4732 if (skb == NULL) 4733 return (NULL); 4734 4735 skb_reserve(skb, hw->extra_tx_headroom); 4736 4737 lvif = VIF_TO_LVIF(vif); 4738 vap = LVIF_TO_VAP(lvif); 4739 4740 psp = skb_put_zero(skb, sizeof(*psp)); 4741 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4742 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4743 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 4744 memcpy(&psp->i_aid, &v, sizeof(v)); 4745 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4746 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4747 4748 return (skb); 4749 } 4750 4751 struct sk_buff * 4752 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4753 struct ieee80211_vif *vif, int linkid, bool qos) 4754 { 4755 struct lkpi_vif *lvif; 4756 struct ieee80211vap *vap; 4757 struct sk_buff *skb; 4758 struct ieee80211_frame *nullf; 4759 4760 IMPROVE("linkid"); 4761 4762 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4763 if (skb == NULL) 4764 return (NULL); 4765 4766 skb_reserve(skb, hw->extra_tx_headroom); 4767 4768 lvif = VIF_TO_LVIF(vif); 4769 vap = LVIF_TO_VAP(lvif); 4770 4771 nullf = skb_put_zero(skb, sizeof(*nullf)); 4772 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4773 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4774 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4775 4776 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4777 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4778 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4779 4780 return (skb); 4781 } 4782 4783 struct wireless_dev * 4784 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4785 { 4786 struct lkpi_vif *lvif; 4787 4788 lvif = VIF_TO_LVIF(vif); 4789 return (&lvif->wdev); 4790 } 4791 4792 void 4793 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4794 { 4795 struct lkpi_vif *lvif; 4796 struct ieee80211vap *vap; 4797 enum ieee80211_state nstate; 4798 int arg; 4799 4800 lvif = VIF_TO_LVIF(vif); 4801 vap = LVIF_TO_VAP(lvif); 4802 4803 /* 4804 * Go to init; otherwise we need to elaborately check state and 4805 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4806 * Let the statemachine handle all neccessary changes. 4807 */ 4808 nstate = IEEE80211_S_INIT; 4809 arg = 0; /* Not a valid reason. */ 4810 4811 #ifdef LINUXKPI_DEBUG_80211 4812 if (linuxkpi_debug_80211 & D80211_TRACE) 4813 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4814 #endif 4815 ieee80211_new_state(vap, nstate, arg); 4816 } 4817 4818 void 4819 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4820 { 4821 struct lkpi_vif *lvif; 4822 struct ieee80211vap *vap; 4823 4824 lvif = VIF_TO_LVIF(vif); 4825 vap = LVIF_TO_VAP(lvif); 4826 4827 #ifdef LINUXKPI_DEBUG_80211 4828 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4829 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4830 vif, vap, ieee80211_state_name[vap->iv_state]); 4831 #endif 4832 ieee80211_beacon_miss(vap->iv_ic); 4833 } 4834 4835 /* -------------------------------------------------------------------------- */ 4836 4837 void 4838 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 4839 { 4840 struct lkpi_hw *lhw; 4841 struct lkpi_vif *lvif; 4842 struct ieee80211_vif *vif; 4843 int ac_count, ac; 4844 4845 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 4846 __func__, qnum, hw->queues, hw)); 4847 4848 lhw = wiphy_priv(hw->wiphy); 4849 4850 /* See lkpi_ic_vap_create(). */ 4851 if (hw->queues >= IEEE80211_NUM_ACS) 4852 ac_count = IEEE80211_NUM_ACS; 4853 else 4854 ac_count = 1; 4855 4856 LKPI_80211_LHW_LVIF_LOCK(lhw); 4857 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4858 4859 vif = LVIF_TO_VIF(lvif); 4860 for (ac = 0; ac < ac_count; ac++) { 4861 IMPROVE_TXQ("LOCKING"); 4862 if (qnum == vif->hw_queue[ac]) { 4863 /* 4864 * For now log this to better understand 4865 * how this is supposed to work. 4866 */ 4867 if (lvif->hw_queue_stopped[ac]) 4868 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4869 "lvif %p vif %p ac %d qnum %d already " 4870 "stopped\n", __func__, __LINE__, 4871 lhw, hw, lvif, vif, ac, qnum); 4872 lvif->hw_queue_stopped[ac] = true; 4873 } 4874 } 4875 } 4876 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4877 } 4878 4879 void 4880 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 4881 { 4882 int i; 4883 4884 IMPROVE_TXQ("Locking; do we need further info?"); 4885 for (i = 0; i < hw->queues; i++) 4886 linuxkpi_ieee80211_stop_queue(hw, i); 4887 } 4888 4889 4890 static void 4891 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 4892 { 4893 struct lkpi_hw *lhw; 4894 struct lkpi_vif *lvif; 4895 struct lkpi_sta *lsta; 4896 int ac_count, ac, tid; 4897 4898 /* See lkpi_ic_vap_create(). */ 4899 if (hw->queues >= IEEE80211_NUM_ACS) 4900 ac_count = IEEE80211_NUM_ACS; 4901 else 4902 ac_count = 1; 4903 4904 lhw = wiphy_priv(hw->wiphy); 4905 4906 IMPROVE_TXQ("Locking"); 4907 LKPI_80211_LHW_LVIF_LOCK(lhw); 4908 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4909 struct ieee80211_vif *vif; 4910 4911 vif = LVIF_TO_VIF(lvif); 4912 for (ac = 0; ac < ac_count; ac++) { 4913 4914 if (hwq == vif->hw_queue[ac]) { 4915 4916 /* XXX-BZ what about software scan? */ 4917 4918 /* 4919 * For now log this to better understand 4920 * how this is supposed to work. 4921 */ 4922 if (!lvif->hw_queue_stopped[ac]) 4923 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4924 "lvif %p vif %p ac %d hw_q not stopped\n", 4925 __func__, __LINE__, 4926 lhw, hw, lvif, vif, ac); 4927 lvif->hw_queue_stopped[ac] = false; 4928 4929 LKPI_80211_LVIF_LOCK(lvif); 4930 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4931 struct ieee80211_sta *sta; 4932 4933 sta = LSTA_TO_STA(lsta); 4934 for (tid = 0; tid < nitems(sta->txq); tid++) { 4935 struct lkpi_txq *ltxq; 4936 4937 if (sta->txq[tid] == NULL) 4938 continue; 4939 4940 if (sta->txq[tid]->ac != ac) 4941 continue; 4942 4943 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 4944 if (!ltxq->stopped) 4945 continue; 4946 4947 ltxq->stopped = false; 4948 4949 /* XXX-BZ see when this explodes with all the locking. taskq? */ 4950 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 4951 } 4952 } 4953 LKPI_80211_LVIF_UNLOCK(lvif); 4954 } 4955 } 4956 } 4957 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4958 } 4959 4960 void 4961 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 4962 { 4963 int i; 4964 4965 IMPROVE_TXQ("Is this all/enough here?"); 4966 for (i = 0; i < hw->queues; i++) 4967 lkpi_ieee80211_wake_queues(hw, i); 4968 } 4969 4970 void 4971 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 4972 { 4973 4974 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 4975 __func__, qnum, hw->queues, hw)); 4976 4977 lkpi_ieee80211_wake_queues(hw, qnum); 4978 } 4979 4980 /* This is just hardware queues. */ 4981 void 4982 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 4983 { 4984 struct lkpi_hw *lhw; 4985 4986 lhw = HW_TO_LHW(hw); 4987 4988 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 4989 IMPROVE_TXQ("LOCKING"); 4990 if (++lhw->txq_generation[ac] == 0) 4991 lhw->txq_generation[ac]++; 4992 } 4993 4994 struct ieee80211_txq * 4995 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 4996 { 4997 struct lkpi_hw *lhw; 4998 struct ieee80211_txq *txq; 4999 struct lkpi_txq *ltxq; 5000 5001 lhw = HW_TO_LHW(hw); 5002 txq = NULL; 5003 5004 IMPROVE_TXQ("LOCKING"); 5005 5006 /* Check that we are scheduled. */ 5007 if (lhw->txq_generation[ac] == 0) 5008 goto out; 5009 5010 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 5011 if (ltxq == NULL) 5012 goto out; 5013 if (ltxq->txq_generation == lhw->txq_generation[ac]) 5014 goto out; 5015 5016 ltxq->txq_generation = lhw->txq_generation[ac]; 5017 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 5018 txq = <xq->txq; 5019 TAILQ_ELEM_INIT(ltxq, txq_entry); 5020 5021 out: 5022 return (txq); 5023 } 5024 5025 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 5026 struct ieee80211_txq *txq, bool withoutpkts) 5027 { 5028 struct lkpi_hw *lhw; 5029 struct lkpi_txq *ltxq; 5030 5031 ltxq = TXQ_TO_LTXQ(txq); 5032 5033 IMPROVE_TXQ("LOCKING"); 5034 5035 /* Only schedule if work to do or asked to anyway. */ 5036 if (!withoutpkts && skb_queue_empty(<xq->skbq)) 5037 goto out; 5038 5039 /* Make sure we do not double-schedule. */ 5040 if (ltxq->txq_entry.tqe_next != NULL) 5041 goto out; 5042 5043 lhw = HW_TO_LHW(hw); 5044 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 5045 out: 5046 return; 5047 } 5048 5049 /* -------------------------------------------------------------------------- */ 5050 5051 struct lkpi_cfg80211_bss { 5052 u_int refcnt; 5053 struct cfg80211_bss bss; 5054 }; 5055 5056 struct lkpi_cfg80211_get_bss_iter_lookup { 5057 struct wiphy *wiphy; 5058 struct linuxkpi_ieee80211_channel *chan; 5059 const uint8_t *bssid; 5060 const uint8_t *ssid; 5061 size_t ssid_len; 5062 enum ieee80211_bss_type bss_type; 5063 enum ieee80211_privacy privacy; 5064 5065 /* 5066 * Something to store a copy of the result as the net80211 scan cache 5067 * is not refoucnted so a scan entry might go away any time. 5068 */ 5069 bool match; 5070 struct cfg80211_bss *bss; 5071 }; 5072 5073 static void 5074 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 5075 { 5076 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 5077 size_t ielen; 5078 5079 lookup = arg; 5080 5081 /* Do not try to find another match. */ 5082 if (lookup->match) 5083 return; 5084 5085 /* Nothing to store result. */ 5086 if (lookup->bss == NULL) 5087 return; 5088 5089 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 5090 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 5091 /* We have no idea what to compare to as the drivers only request ANY */ 5092 return; 5093 } 5094 5095 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 5096 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 5097 /* We have no idea what to compare to as the drivers only request ANY */ 5098 return; 5099 } 5100 5101 if (lookup->chan != NULL) { 5102 struct linuxkpi_ieee80211_channel *chan; 5103 5104 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 5105 se->se_chan->ic_freq); 5106 if (chan == NULL || chan != lookup->chan) 5107 return; 5108 } 5109 5110 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 5111 return; 5112 5113 if (lookup->ssid) { 5114 if (lookup->ssid_len != se->se_ssid[1] || 5115 se->se_ssid[1] == 0) 5116 return; 5117 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 5118 return; 5119 } 5120 5121 ielen = se->se_ies.len; 5122 5123 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 5124 M_LKPI80211, M_NOWAIT | M_ZERO); 5125 if (lookup->bss->ies == NULL) 5126 return; 5127 5128 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 5129 lookup->bss->ies->len = ielen; 5130 if (ielen) 5131 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 5132 5133 lookup->match = true; 5134 } 5135 5136 struct cfg80211_bss * 5137 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 5138 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 5139 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 5140 { 5141 struct lkpi_cfg80211_bss *lbss; 5142 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 5143 struct lkpi_hw *lhw; 5144 struct ieee80211vap *vap; 5145 5146 lhw = wiphy_priv(wiphy); 5147 5148 /* Let's hope we can alloc. */ 5149 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 5150 if (lbss == NULL) { 5151 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 5152 return (NULL); 5153 } 5154 5155 lookup.wiphy = wiphy; 5156 lookup.chan = chan; 5157 lookup.bssid = bssid; 5158 lookup.ssid = ssid; 5159 lookup.ssid_len = ssid_len; 5160 lookup.bss_type = bss_type; 5161 lookup.privacy = privacy; 5162 lookup.match = false; 5163 lookup.bss = &lbss->bss; 5164 5165 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 5166 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 5167 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 5168 if (!lookup.match) { 5169 free(lbss, M_LKPI80211); 5170 return (NULL); 5171 } 5172 5173 refcount_init(&lbss->refcnt, 1); 5174 return (&lbss->bss); 5175 } 5176 5177 void 5178 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 5179 { 5180 struct lkpi_cfg80211_bss *lbss; 5181 5182 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 5183 5184 /* Free everything again on refcount ... */ 5185 if (refcount_release(&lbss->refcnt)) { 5186 free(lbss->bss.ies, M_LKPI80211); 5187 free(lbss, M_LKPI80211); 5188 } 5189 } 5190 5191 void 5192 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 5193 { 5194 struct lkpi_hw *lhw; 5195 struct ieee80211com *ic; 5196 struct ieee80211vap *vap; 5197 5198 lhw = wiphy_priv(wiphy); 5199 ic = lhw->ic; 5200 5201 /* 5202 * If we haven't called ieee80211_ifattach() yet 5203 * or there is no VAP, there are no scans to flush. 5204 */ 5205 if (ic == NULL || 5206 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 5207 return; 5208 5209 /* Should only happen on the current one? Not seen it late enough. */ 5210 IEEE80211_LOCK(ic); 5211 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 5212 ieee80211_scan_flush(vap); 5213 IEEE80211_UNLOCK(ic); 5214 } 5215 5216 /* -------------------------------------------------------------------------- */ 5217 5218 MODULE_VERSION(linuxkpi_wlan, 1); 5219 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 5220 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 5221