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 /* IEEE 802.11e Table 20i-UP-to-AC mappings. */ 117 static const uint8_t ieee80211e_up_to_ac[] = { 118 IEEE80211_AC_BE, 119 IEEE80211_AC_BK, 120 IEEE80211_AC_BK, 121 IEEE80211_AC_BE, 122 IEEE80211_AC_VI, 123 IEEE80211_AC_VI, 124 IEEE80211_AC_VO, 125 IEEE80211_AC_VO, 126 #if 0 127 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 128 #endif 129 }; 130 131 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 132 /* 133 * XXX TODO need a "glue layer" to link cfg80211 ops to 134 * mac80211 and to the driver or net80211. 135 * Can we pass some on 1:1? Need to compare the (*f)(). 136 */ 137 }; 138 139 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 140 struct ieee80211_node *); 141 static void lkpi_80211_txq_task(void *, int); 142 static void lkpi_ieee80211_free_skb_mbuf(void *); 143 #ifdef LKPI_80211_WME 144 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 145 #endif 146 147 static void 148 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 149 const char *_f, int _l) 150 { 151 152 #ifdef LINUXKPI_DEBUG_80211 153 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 154 return; 155 if (lsta == NULL) 156 return; 157 158 printf("%s:%d lsta %p ni %p sta %p\n", 159 _f, _l, lsta, ni, &lsta->sta); 160 if (ni != NULL) 161 ieee80211_dump_node(NULL, ni); 162 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 163 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 164 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 165 #endif 166 } 167 168 static void 169 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 170 { 171 struct ieee80211_node *ni; 172 173 IMPROVE("XXX-BZ remove tqe_prev check once ni-sta-state-sync is fixed"); 174 175 ni = lsta->ni; 176 177 LKPI_80211_LVIF_LOCK(lvif); 178 if (lsta->lsta_entry.tqe_prev != NULL) 179 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 180 LKPI_80211_LVIF_UNLOCK(lvif); 181 182 lsta->ni = NULL; 183 ni->ni_drv_data = NULL; 184 if (ni != NULL) 185 ieee80211_free_node(ni); 186 187 IMPROVE("more from lkpi_ic_node_free() should happen here."); 188 189 free(lsta, M_LKPI80211); 190 } 191 192 static struct lkpi_sta * 193 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 194 struct ieee80211_hw *hw, struct ieee80211_node *ni) 195 { 196 struct lkpi_sta *lsta; 197 struct lkpi_vif *lvif; 198 struct ieee80211_vif *vif; 199 struct ieee80211_sta *sta; 200 int band, i, tid; 201 202 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 203 M_NOWAIT | M_ZERO); 204 if (lsta == NULL) 205 return (NULL); 206 207 lsta->added_to_drv = false; 208 lsta->state = IEEE80211_STA_NOTEXIST; 209 #if 0 210 /* 211 * This needs to be done in node_init() as ieee80211_alloc_node() 212 * will initialise the refcount after us. 213 */ 214 lsta->ni = ieee80211_ref_node(ni); 215 #endif 216 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 217 ni->ni_drv_data = lsta; 218 219 lvif = VAP_TO_LVIF(vap); 220 vif = LVIF_TO_VIF(lvif); 221 sta = LSTA_TO_STA(lsta); 222 223 IEEE80211_ADDR_COPY(sta->addr, mac); 224 225 /* TXQ */ 226 for (tid = 0; tid < nitems(sta->txq); tid++) { 227 struct lkpi_txq *ltxq; 228 229 /* We are not limiting ourselves to hw.queues here. */ 230 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 231 M_LKPI80211, M_NOWAIT | M_ZERO); 232 if (ltxq == NULL) 233 goto cleanup; 234 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 235 if (tid == IEEE80211_NUM_TIDS) { 236 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 237 free(ltxq, M_LKPI80211); 238 continue; 239 } 240 IMPROVE("AP/if we support non-STA here too"); 241 ltxq->txq.ac = IEEE80211_AC_VO; 242 } else { 243 ltxq->txq.ac = ieee80211e_up_to_ac[tid & 7]; 244 } 245 ltxq->seen_dequeue = false; 246 ltxq->stopped = false; 247 ltxq->txq.vif = vif; 248 ltxq->txq.tid = tid; 249 ltxq->txq.sta = sta; 250 TAILQ_ELEM_INIT(ltxq, txq_entry); 251 skb_queue_head_init(<xq->skbq); 252 sta->txq[tid] = <xq->txq; 253 } 254 255 /* Deflink information. */ 256 for (band = 0; band < NUM_NL80211_BANDS; band++) { 257 struct ieee80211_supported_band *supband; 258 259 supband = hw->wiphy->bands[band]; 260 if (supband == NULL) 261 continue; 262 263 for (i = 0; i < supband->n_bitrates; i++) { 264 265 IMPROVE("Further supband->bitrates[i]* checks?"); 266 /* or should we get them from the ni? */ 267 sta->deflink.supp_rates[band] |= BIT(i); 268 } 269 } 270 sta->deflink.smps_mode = IEEE80211_SMPS_OFF; 271 IMPROVE("ht, vht, he, ... bandwidth, smps_mode, .."); 272 /* bandwidth = IEEE80211_STA_RX_... */ 273 274 /* Link configuration. */ 275 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 276 sta->link[0] = &sta->deflink; 277 for (i = 1; i < nitems(sta->link); i++) { 278 IMPROVE("more links; only link[0] = deflink currently."); 279 } 280 281 /* Deferred TX path. */ 282 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 283 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 284 mbufq_init(&lsta->txq, IFQ_MAXLEN); 285 286 return (lsta); 287 288 cleanup: 289 for (; tid >= 0; tid--) 290 free(sta->txq[tid], M_LKPI80211); 291 free(lsta, M_LKPI80211); 292 return (NULL); 293 } 294 295 static enum nl80211_band 296 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 297 { 298 299 if (IEEE80211_IS_CHAN_2GHZ(c)) 300 return (NL80211_BAND_2GHZ); 301 else if (IEEE80211_IS_CHAN_5GHZ(c)) 302 return (NL80211_BAND_5GHZ); 303 #ifdef __notyet__ 304 else if () 305 return (NL80211_BAND_6GHZ); 306 else if () 307 return (NL80211_BAND_60GHZ); 308 else if (IEEE80211_IS_CHAN_GSM(c)) 309 return (NL80211_BAND_XXX); 310 #endif 311 else 312 panic("%s: unsupported band. c %p flags %#x\n", 313 __func__, c, c->ic_flags); 314 } 315 316 static uint32_t 317 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 318 { 319 320 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 321 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 322 switch (band) { 323 case NL80211_BAND_2GHZ: 324 return (IEEE80211_CHAN_2GHZ); 325 break; 326 case NL80211_BAND_5GHZ: 327 return (IEEE80211_CHAN_5GHZ); 328 break; 329 case NL80211_BAND_60GHZ: 330 break; 331 case NL80211_BAND_6GHZ: 332 break; 333 default: 334 panic("%s: unsupported band %u\n", __func__, band); 335 break; 336 } 337 338 IMPROVE(); 339 return (0x00); 340 } 341 342 #if 0 343 static enum ieee80211_ac_numbers 344 lkpi_ac_net_to_l80211(int ac) 345 { 346 347 switch (ac) { 348 case WME_AC_VO: 349 return (IEEE80211_AC_VO); 350 case WME_AC_VI: 351 return (IEEE80211_AC_VI); 352 case WME_AC_BE: 353 return (IEEE80211_AC_BE); 354 case WME_AC_BK: 355 return (IEEE80211_AC_BK); 356 default: 357 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 358 return (IEEE80211_AC_BE); 359 } 360 } 361 #endif 362 363 static enum nl80211_iftype 364 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 365 { 366 367 switch (opmode) { 368 case IEEE80211_M_IBSS: 369 return (NL80211_IFTYPE_ADHOC); 370 break; 371 case IEEE80211_M_STA: 372 return (NL80211_IFTYPE_STATION); 373 break; 374 case IEEE80211_M_WDS: 375 return (NL80211_IFTYPE_WDS); 376 break; 377 case IEEE80211_M_HOSTAP: 378 return (NL80211_IFTYPE_AP); 379 break; 380 case IEEE80211_M_MONITOR: 381 return (NL80211_IFTYPE_MONITOR); 382 break; 383 case IEEE80211_M_MBSS: 384 return (NL80211_IFTYPE_MESH_POINT); 385 break; 386 case IEEE80211_M_AHDEMO: 387 /* FALLTHROUGH */ 388 default: 389 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 390 /* FALLTHROUGH */ 391 } 392 return (NL80211_IFTYPE_UNSPECIFIED); 393 } 394 395 #ifdef LKPI_80211_HW_CRYPTO 396 static uint32_t 397 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 398 { 399 400 switch (wlan_cipher_suite) { 401 case WLAN_CIPHER_SUITE_WEP40: 402 return (IEEE80211_CRYPTO_WEP); 403 case WLAN_CIPHER_SUITE_TKIP: 404 return (IEEE80211_CRYPTO_TKIP); 405 case WLAN_CIPHER_SUITE_CCMP: 406 return (IEEE80211_CIPHER_AES_CCM); 407 case WLAN_CIPHER_SUITE_WEP104: 408 return (IEEE80211_CRYPTO_WEP); 409 case WLAN_CIPHER_SUITE_AES_CMAC: 410 case WLAN_CIPHER_SUITE_GCMP: 411 case WLAN_CIPHER_SUITE_GCMP_256: 412 case WLAN_CIPHER_SUITE_CCMP_256: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 414 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 415 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 416 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 417 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 418 break; 419 default: 420 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 421 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 422 } 423 424 return (0); 425 } 426 427 static uint32_t 428 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 429 { 430 431 switch (cipher) { 432 case IEEE80211_CIPHER_TKIP: 433 return (WLAN_CIPHER_SUITE_TKIP); 434 case IEEE80211_CIPHER_AES_CCM: 435 return (WLAN_CIPHER_SUITE_CCMP); 436 case IEEE80211_CIPHER_WEP: 437 if (keylen < 8) 438 return (WLAN_CIPHER_SUITE_WEP40); 439 else 440 return (WLAN_CIPHER_SUITE_WEP104); 441 break; 442 case IEEE80211_CIPHER_AES_OCB: 443 case IEEE80211_CIPHER_TKIPMIC: 444 case IEEE80211_CIPHER_CKIP: 445 case IEEE80211_CIPHER_NONE: 446 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 447 break; 448 default: 449 printf("%s: unknown cipher %#010x\n", __func__, cipher); 450 }; 451 return (0); 452 } 453 #endif 454 455 #ifdef __notyet__ 456 static enum ieee80211_sta_state 457 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 458 { 459 460 /* 461 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 462 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 463 */ 464 switch (state) { 465 case IEEE80211_S_INIT: 466 return (IEEE80211_STA_NOTEXIST); 467 case IEEE80211_S_SCAN: 468 return (IEEE80211_STA_NONE); 469 case IEEE80211_S_AUTH: 470 return (IEEE80211_STA_AUTH); 471 case IEEE80211_S_ASSOC: 472 return (IEEE80211_STA_ASSOC); 473 case IEEE80211_S_RUN: 474 return (IEEE80211_STA_AUTHORIZED); 475 case IEEE80211_S_CAC: 476 case IEEE80211_S_CSA: 477 case IEEE80211_S_SLEEP: 478 default: 479 UNIMPLEMENTED; 480 }; 481 482 return (IEEE80211_STA_NOTEXIST); 483 } 484 #endif 485 486 static struct linuxkpi_ieee80211_channel * 487 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 488 struct ieee80211_channel *c) 489 { 490 struct ieee80211_hw *hw; 491 struct linuxkpi_ieee80211_channel *channels; 492 enum nl80211_band band; 493 int i, nchans; 494 495 hw = LHW_TO_HW(lhw); 496 band = lkpi_net80211_chan_to_nl80211_band(c); 497 if (hw->wiphy->bands[band] == NULL) 498 return (NULL); 499 500 nchans = hw->wiphy->bands[band]->n_channels; 501 if (nchans <= 0) 502 return (NULL); 503 504 channels = hw->wiphy->bands[band]->channels; 505 for (i = 0; i < nchans; i++) { 506 if (channels[i].hw_value == c->ic_ieee) 507 return (&channels[i]); 508 } 509 510 return (NULL); 511 } 512 513 static struct linuxkpi_ieee80211_channel * 514 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 515 { 516 struct linuxkpi_ieee80211_channel *chan; 517 struct ieee80211_channel *c; 518 struct lkpi_hw *lhw; 519 520 chan = NULL; 521 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 522 c = ni->ni_chan; 523 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 524 c = ic->ic_bsschan; 525 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 526 c = ic->ic_curchan; 527 else 528 c = NULL; 529 530 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 531 lhw = ic->ic_softc; 532 chan = lkpi_find_lkpi80211_chan(lhw, c); 533 } 534 535 return (chan); 536 } 537 538 struct linuxkpi_ieee80211_channel * 539 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 540 { 541 enum nl80211_band band; 542 543 for (band = 0; band < NUM_NL80211_BANDS; band++) { 544 struct ieee80211_supported_band *supband; 545 struct linuxkpi_ieee80211_channel *channels; 546 int i; 547 548 supband = wiphy->bands[band]; 549 if (supband == NULL || supband->n_channels == 0) 550 continue; 551 552 channels = supband->channels; 553 for (i = 0; i < supband->n_channels; i++) { 554 if (channels[i].center_freq == freq) 555 return (&channels[i]); 556 } 557 } 558 559 return (NULL); 560 } 561 562 #ifdef LKPI_80211_HW_CRYPTO 563 static int 564 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 565 enum set_key_cmd cmd) 566 { 567 struct ieee80211com *ic; 568 struct lkpi_hw *lhw; 569 struct ieee80211_hw *hw; 570 struct lkpi_vif *lvif; 571 struct ieee80211_vif *vif; 572 struct ieee80211_sta *sta; 573 struct ieee80211_node *ni; 574 struct ieee80211_key_conf *kc; 575 int error; 576 577 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 578 579 ic = vap->iv_ic; 580 lhw = ic->ic_softc; 581 hw = LHW_TO_HW(lhw); 582 lvif = VAP_TO_LVIF(vap); 583 vif = LVIF_TO_VIF(lvif); 584 585 memset(&kc, 0, sizeof(kc)); 586 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 587 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 588 k->wk_cipher->ic_cipher, k->wk_keylen); 589 kc->keyidx = k->wk_keyix; 590 #if 0 591 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 592 #endif 593 atomic64_set(&kc->tx_pn, k->wk_keytsc); 594 kc->keylen = k->wk_keylen; 595 memcpy(kc->key, k->wk_key, k->wk_keylen); 596 597 switch (kc->cipher) { 598 case WLAN_CIPHER_SUITE_CCMP: 599 kc->iv_len = k->wk_cipher->ic_header; 600 kc->icv_len = k->wk_cipher->ic_trailer; 601 break; 602 case WLAN_CIPHER_SUITE_TKIP: 603 default: 604 IMPROVE(); 605 return (0); 606 }; 607 608 ni = vap->iv_bss; 609 sta = ieee80211_find_sta(vif, ni->ni_bssid); 610 if (sta != NULL) { 611 struct lkpi_sta *lsta; 612 613 lsta = STA_TO_LSTA(sta); 614 lsta->kc = kc; 615 } 616 617 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 618 if (error != 0) { 619 /* XXX-BZ leaking kc currently */ 620 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 621 return (0); 622 } else { 623 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 624 "flags %#10x\n", __func__, 625 kc->keyidx, kc->hw_key_idx, kc->flags); 626 return (1); 627 } 628 } 629 630 static int 631 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 632 { 633 634 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 635 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 636 } 637 static int 638 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 639 { 640 641 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 642 } 643 #endif 644 645 static u_int 646 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 647 { 648 struct netdev_hw_addr_list *mc_list; 649 struct netdev_hw_addr *addr; 650 651 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 652 __func__, arg, sdl, cnt)); 653 654 mc_list = arg; 655 /* If it is on the list already skip it. */ 656 netdev_hw_addr_list_for_each(addr, mc_list) { 657 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 658 return (0); 659 } 660 661 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 662 if (addr == NULL) 663 return (0); 664 665 INIT_LIST_HEAD(&addr->addr_list); 666 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 667 /* XXX this should be a netdev function? */ 668 list_add(&addr->addr_list, &mc_list->addr_list); 669 mc_list->count++; 670 671 #ifdef LINUXKPI_DEBUG_80211 672 if (linuxkpi_debug_80211 & D80211_TRACE) 673 printf("%s:%d: mc_list count %d: added %6D\n", 674 __func__, __LINE__, mc_list->count, addr->addr, ":"); 675 #endif 676 677 return (1); 678 } 679 680 static void 681 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 682 { 683 struct lkpi_hw *lhw; 684 struct ieee80211_hw *hw; 685 struct netdev_hw_addr_list mc_list; 686 struct list_head *le, *next; 687 struct netdev_hw_addr *addr; 688 struct ieee80211vap *vap; 689 u64 mc; 690 unsigned int changed_flags, total_flags; 691 692 lhw = ic->ic_softc; 693 694 if (lhw->ops->prepare_multicast == NULL || 695 lhw->ops->configure_filter == NULL) 696 return; 697 698 if (!lhw->update_mc && !force) 699 return; 700 701 changed_flags = total_flags = 0; 702 mc_list.count = 0; 703 INIT_LIST_HEAD(&mc_list.addr_list); 704 if (ic->ic_allmulti == 0) { 705 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 706 if_foreach_llmaddr(vap->iv_ifp, 707 lkpi_ic_update_mcast_copy, &mc_list); 708 } else { 709 changed_flags |= FIF_ALLMULTI; 710 } 711 712 hw = LHW_TO_HW(lhw); 713 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 714 /* 715 * XXX-BZ make sure to get this sorted what is a change, 716 * what gets all set; what was already set? 717 */ 718 total_flags = changed_flags; 719 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 720 721 #ifdef LINUXKPI_DEBUG_80211 722 if (linuxkpi_debug_80211 & D80211_TRACE) 723 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 724 __func__, changed_flags, mc_list.count, total_flags); 725 #endif 726 727 if (mc_list.count != 0) { 728 list_for_each_safe(le, next, &mc_list.addr_list) { 729 addr = list_entry(le, struct netdev_hw_addr, addr_list); 730 free(addr, M_LKPI80211); 731 mc_list.count--; 732 } 733 } 734 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 735 __func__, &mc_list, mc_list.count)); 736 } 737 738 static enum ieee80211_bss_changed 739 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 740 struct ieee80211vap *vap, const char *_f, int _l) 741 { 742 enum ieee80211_bss_changed bss_changed; 743 744 bss_changed = 0; 745 746 #ifdef LINUXKPI_DEBUG_80211 747 if (linuxkpi_debug_80211 & D80211_TRACE) 748 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 749 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 750 "sync_device_ts %u bss_changed %#08x\n", 751 __func__, __LINE__, _f, _l, 752 vif->cfg.assoc, vif->cfg.aid, 753 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 754 vif->bss_conf.sync_dtim_count, 755 (uintmax_t)vif->bss_conf.sync_tsf, 756 vif->bss_conf.sync_device_ts, 757 bss_changed); 758 #endif 759 760 if (vif->bss_conf.beacon_int != ni->ni_intval) { 761 vif->bss_conf.beacon_int = ni->ni_intval; 762 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 763 if (vif->bss_conf.beacon_int < 16) 764 vif->bss_conf.beacon_int = 16; 765 bss_changed |= BSS_CHANGED_BEACON_INT; 766 } 767 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 768 vap->iv_dtim_period > 0) { 769 vif->bss_conf.dtim_period = vap->iv_dtim_period; 770 bss_changed |= BSS_CHANGED_BEACON_INFO; 771 } 772 773 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 774 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 775 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 776 777 #ifdef LINUXKPI_DEBUG_80211 778 if (linuxkpi_debug_80211 & D80211_TRACE) 779 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 780 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 781 "sync_device_ts %u bss_changed %#08x\n", 782 __func__, __LINE__, _f, _l, 783 vif->cfg.assoc, vif->cfg.aid, 784 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 785 vif->bss_conf.sync_dtim_count, 786 (uintmax_t)vif->bss_conf.sync_tsf, 787 vif->bss_conf.sync_device_ts, 788 bss_changed); 789 #endif 790 791 return (bss_changed); 792 } 793 794 static void 795 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 796 { 797 struct ieee80211_hw *hw; 798 int error; 799 bool cancel; 800 801 LKPI_80211_LHW_SCAN_LOCK(lhw); 802 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 803 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 804 if (!cancel) 805 return; 806 807 hw = LHW_TO_HW(lhw); 808 809 IEEE80211_UNLOCK(lhw->ic); 810 LKPI_80211_LHW_LOCK(lhw); 811 /* Need to cancel the scan. */ 812 lkpi_80211_mo_cancel_hw_scan(hw, vif); 813 LKPI_80211_LHW_UNLOCK(lhw); 814 815 /* Need to make sure we see ieee80211_scan_completed. */ 816 LKPI_80211_LHW_SCAN_LOCK(lhw); 817 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 818 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 819 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 820 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 821 822 IEEE80211_LOCK(lhw->ic); 823 824 if (cancel) 825 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 826 __func__, error, lhw, vif); 827 } 828 829 static void 830 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 831 { 832 struct lkpi_hw *lhw; 833 int error; 834 bool old; 835 836 old = hw->conf.flags & IEEE80211_CONF_IDLE; 837 if (old == new) 838 return; 839 840 hw->conf.flags ^= IEEE80211_CONF_IDLE; 841 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 842 if (error != 0 && error != EOPNOTSUPP) { 843 lhw = HW_TO_LHW(hw); 844 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 845 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 846 } 847 } 848 849 static void 850 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 851 struct lkpi_hw *lhw) 852 { 853 sta->aid = 0; 854 if (vif->cfg.assoc) { 855 struct ieee80211_hw *hw; 856 enum ieee80211_bss_changed changed; 857 858 lhw->update_mc = true; 859 lkpi_update_mcast_filter(lhw->ic, true); 860 861 changed = 0; 862 vif->cfg.assoc = false; 863 vif->cfg.aid = 0; 864 changed |= BSS_CHANGED_ASSOC; 865 /* 866 * This will remove the sta from firmware for iwlwifi. 867 * So confusing that they use state and flags and ... ^%$%#%$^. 868 */ 869 IMPROVE(); 870 hw = LHW_TO_HW(lhw); 871 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 872 changed); 873 874 lkpi_hw_conf_idle(hw, true); 875 } 876 } 877 878 static void 879 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 880 bool dequeue_seen, bool no_emptyq) 881 { 882 struct lkpi_txq *ltxq; 883 int tid; 884 885 /* Wake up all queues to know they are allocated in the driver. */ 886 for (tid = 0; tid < nitems(sta->txq); tid++) { 887 888 if (tid == IEEE80211_NUM_TIDS) { 889 IMPROVE("station specific?"); 890 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 891 continue; 892 } else if (tid >= hw->queues) 893 continue; 894 895 if (sta->txq[tid] == NULL) 896 continue; 897 898 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 899 if (dequeue_seen && !ltxq->seen_dequeue) 900 continue; 901 902 if (no_emptyq && skb_queue_empty(<xq->skbq)) 903 continue; 904 905 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 906 } 907 } 908 909 /* -------------------------------------------------------------------------- */ 910 911 static int 912 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 913 { 914 915 return (0); 916 } 917 918 /* lkpi_iv_newstate() handles the stop scan case generally. */ 919 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 920 921 static int 922 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 923 { 924 struct linuxkpi_ieee80211_channel *chan; 925 struct lkpi_chanctx *lchanctx; 926 struct ieee80211_chanctx_conf *conf; 927 struct lkpi_hw *lhw; 928 struct ieee80211_hw *hw; 929 struct lkpi_vif *lvif; 930 struct ieee80211_vif *vif; 931 struct ieee80211_node *ni; 932 struct lkpi_sta *lsta; 933 enum ieee80211_bss_changed bss_changed; 934 struct ieee80211_prep_tx_info prep_tx_info; 935 uint32_t changed; 936 int error; 937 938 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 939 if (chan == NULL) { 940 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 941 return (ESRCH); 942 } 943 944 lhw = vap->iv_ic->ic_softc; 945 hw = LHW_TO_HW(lhw); 946 lvif = VAP_TO_LVIF(vap); 947 vif = LVIF_TO_VIF(lvif); 948 949 ni = ieee80211_ref_node(vap->iv_bss); 950 951 IEEE80211_UNLOCK(vap->iv_ic); 952 LKPI_80211_LHW_LOCK(lhw); 953 954 /* Add chanctx (or if exists, change it). */ 955 if (vif->chanctx_conf != NULL) { 956 conf = vif->chanctx_conf; 957 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 958 IMPROVE("diff changes for changed, working on live copy, rcu"); 959 } else { 960 /* Keep separate alloc as in Linux this is rcu managed? */ 961 lchanctx = malloc(sizeof(*lchanctx) + hw->chanctx_data_size, 962 M_LKPI80211, M_WAITOK | M_ZERO); 963 conf = &lchanctx->conf; 964 } 965 966 conf->rx_chains_dynamic = 1; 967 conf->rx_chains_static = 1; 968 conf->radar_enabled = 969 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 970 conf->def.chan = chan; 971 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 972 conf->def.center_freq1 = chan->center_freq; 973 conf->def.center_freq2 = 0; 974 /* Responder ... */ 975 conf->min_def.chan = chan; 976 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 977 conf->min_def.center_freq1 = chan->center_freq; 978 conf->min_def.center_freq2 = 0; 979 IMPROVE("currently 20_NOHT only"); 980 981 /* Set bss info (bss_info_changed). */ 982 bss_changed = 0; 983 vif->bss_conf.bssid = ni->ni_bssid; 984 bss_changed |= BSS_CHANGED_BSSID; 985 vif->bss_conf.txpower = ni->ni_txpower; 986 bss_changed |= BSS_CHANGED_TXPOWER; 987 vif->cfg.idle = false; 988 bss_changed |= BSS_CHANGED_IDLE; 989 990 /* vif->bss_conf.basic_rates ? Where exactly? */ 991 992 /* Should almost assert it is this. */ 993 vif->cfg.assoc = false; 994 vif->cfg.aid = 0; 995 996 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 997 998 error = 0; 999 if (vif->chanctx_conf != NULL) { 1000 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 1001 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 1002 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 1003 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 1004 lkpi_80211_mo_change_chanctx(hw, conf, changed); 1005 } else { 1006 error = lkpi_80211_mo_add_chanctx(hw, conf); 1007 if (error == 0 || error == EOPNOTSUPP) { 1008 vif->bss_conf.chandef.chan = conf->def.chan; 1009 vif->bss_conf.chandef.width = conf->def.width; 1010 vif->bss_conf.chandef.center_freq1 = 1011 conf->def.center_freq1; 1012 vif->bss_conf.chandef.center_freq2 = 1013 conf->def.center_freq2; 1014 } else { 1015 goto out; 1016 } 1017 1018 vif->bss_conf.chanctx_conf = conf; 1019 1020 /* Assign vif chanctx. */ 1021 if (error == 0) 1022 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1023 &vif->bss_conf, conf); 1024 if (error == EOPNOTSUPP) 1025 error = 0; 1026 if (error != 0) { 1027 lkpi_80211_mo_remove_chanctx(hw, conf); 1028 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1029 free(lchanctx, M_LKPI80211); 1030 goto out; 1031 } 1032 } 1033 IMPROVE("update radiotap chan fields too"); 1034 1035 /* RATES */ 1036 IMPROVE("bss info: not all needs to come now and rates are missing"); 1037 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1038 1039 /* 1040 * This is a bandaid for now. If we went through (*iv_update_bss)() 1041 * and then removed the lsta we end up here without a lsta and have 1042 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1043 * would normally do. 1044 * XXX-BZ I do not like this but currently we have no good way of 1045 * intercepting the bss swap and state changes and packets going out 1046 * workflow so live with this. It is a compat layer after all. 1047 */ 1048 if (ni->ni_drv_data == NULL) { 1049 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1050 if (lsta == NULL) { 1051 error = ENOMEM; 1052 goto out; 1053 } 1054 lsta->ni = ieee80211_ref_node(ni); 1055 } else { 1056 lsta = ni->ni_drv_data; 1057 } 1058 1059 /* Insert the [l]sta into the list of known stations. */ 1060 LKPI_80211_LVIF_LOCK(lvif); 1061 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1062 LKPI_80211_LVIF_UNLOCK(lvif); 1063 1064 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1065 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1066 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1067 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1068 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1069 if (error != 0) { 1070 IMPROVE("do we need to undo the chan ctx?"); 1071 goto out; 1072 } 1073 #if 0 1074 lsta->added_to_drv = true; /* mo manages. */ 1075 #endif 1076 1077 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1078 1079 /* 1080 * Wakeup all queues now that sta is there so we have as much time to 1081 * possibly prepare the queue in the driver to be ready for the 1st 1082 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1083 * is no guarantee or way to check. 1084 * XXX-BZ and by now we know that this does not work on all drivers 1085 * for all queues. 1086 */ 1087 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1088 1089 /* Start mgd_prepare_tx. */ 1090 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1091 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1092 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1093 lsta->in_mgd = true; 1094 1095 /* 1096 * What is going to happen next: 1097 * - <twiddle> .. we should end up in "auth_to_assoc" 1098 * - event_callback 1099 * - update sta_state (NONE to AUTH) 1100 * - mgd_complete_tx 1101 * (ideally we'd do that on a callback for something else ...) 1102 */ 1103 1104 out: 1105 LKPI_80211_LHW_UNLOCK(lhw); 1106 IEEE80211_LOCK(vap->iv_ic); 1107 if (ni != NULL) 1108 ieee80211_free_node(ni); 1109 return (error); 1110 } 1111 1112 static int 1113 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1114 { 1115 struct lkpi_hw *lhw; 1116 struct ieee80211_hw *hw; 1117 struct lkpi_vif *lvif; 1118 struct ieee80211_vif *vif; 1119 struct ieee80211_node *ni; 1120 struct lkpi_sta *lsta; 1121 struct ieee80211_sta *sta; 1122 struct ieee80211_prep_tx_info prep_tx_info; 1123 int error; 1124 1125 lhw = vap->iv_ic->ic_softc; 1126 hw = LHW_TO_HW(lhw); 1127 lvif = VAP_TO_LVIF(vap); 1128 vif = LVIF_TO_VIF(lvif); 1129 1130 /* Keep ni around. */ 1131 ni = ieee80211_ref_node(vap->iv_bss); 1132 lsta = ni->ni_drv_data; 1133 sta = LSTA_TO_STA(lsta); 1134 1135 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1136 1137 IEEE80211_UNLOCK(vap->iv_ic); 1138 LKPI_80211_LHW_LOCK(lhw); 1139 1140 /* flush, drop. */ 1141 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1142 1143 /* Wake tx queues to get packet(s) out. */ 1144 lkpi_wake_tx_queues(hw, sta, true, true); 1145 1146 /* flush, no drop */ 1147 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1148 1149 /* End mgd_complete_tx. */ 1150 if (lsta->in_mgd) { 1151 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1152 prep_tx_info.success = false; 1153 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1154 lsta->in_mgd = false; 1155 } 1156 1157 /* sync_rx_queues */ 1158 lkpi_80211_mo_sync_rx_queues(hw); 1159 1160 /* sta_pre_rcu_remove */ 1161 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1162 1163 /* Take the station down. */ 1164 1165 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1166 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1167 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1168 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1169 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1170 if (error != 0) { 1171 IMPROVE("do we need to undo the chan ctx?"); 1172 goto out; 1173 } 1174 #if 0 1175 lsta->added_to_drv = false; /* mo manages. */ 1176 #endif 1177 1178 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1179 1180 lkpi_lsta_remove(lsta, lvif); 1181 1182 /* conf_tx */ 1183 1184 /* Take the chan ctx down. */ 1185 if (vif->chanctx_conf != NULL) { 1186 struct lkpi_chanctx *lchanctx; 1187 struct ieee80211_chanctx_conf *conf; 1188 1189 conf = vif->chanctx_conf; 1190 /* Remove vif context. */ 1191 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1192 /* NB: vif->chanctx_conf is NULL now. */ 1193 1194 /* Remove chan ctx. */ 1195 lkpi_80211_mo_remove_chanctx(hw, conf); 1196 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1197 free(lchanctx, M_LKPI80211); 1198 } 1199 1200 out: 1201 LKPI_80211_LHW_UNLOCK(lhw); 1202 IEEE80211_LOCK(vap->iv_ic); 1203 if (ni != NULL) 1204 ieee80211_free_node(ni); 1205 return (error); 1206 } 1207 1208 static int 1209 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1210 { 1211 int error; 1212 1213 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1214 if (error == 0) 1215 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1216 return (error); 1217 } 1218 1219 static int 1220 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1221 { 1222 struct lkpi_hw *lhw; 1223 struct ieee80211_hw *hw; 1224 struct lkpi_vif *lvif; 1225 struct ieee80211_vif *vif; 1226 struct ieee80211_node *ni; 1227 struct lkpi_sta *lsta; 1228 struct ieee80211_prep_tx_info prep_tx_info; 1229 int error; 1230 1231 lhw = vap->iv_ic->ic_softc; 1232 hw = LHW_TO_HW(lhw); 1233 lvif = VAP_TO_LVIF(vap); 1234 vif = LVIF_TO_VIF(lvif); 1235 1236 IEEE80211_UNLOCK(vap->iv_ic); 1237 LKPI_80211_LHW_LOCK(lhw); 1238 ni = NULL; 1239 1240 /* Finish auth. */ 1241 IMPROVE("event callback"); 1242 1243 /* Update sta_state (NONE to AUTH). */ 1244 ni = ieee80211_ref_node(vap->iv_bss); 1245 lsta = ni->ni_drv_data; 1246 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1247 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1248 "NONE: %#x\n", __func__, lsta, lsta->state)); 1249 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1250 if (error != 0) 1251 goto out; 1252 1253 /* End mgd_complete_tx. */ 1254 if (lsta->in_mgd) { 1255 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1256 prep_tx_info.success = true; 1257 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1258 lsta->in_mgd = false; 1259 } 1260 1261 /* Now start assoc. */ 1262 1263 /* Start mgd_prepare_tx. */ 1264 if (!lsta->in_mgd) { 1265 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1266 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1267 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1268 lsta->in_mgd = true; 1269 } 1270 1271 /* Wake tx queue to get packet out. */ 1272 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1273 1274 /* 1275 * <twiddle> .. we end up in "assoc_to_run" 1276 * - update sta_state (AUTH to ASSOC) 1277 * - conf_tx [all] 1278 * - bss_info_changed (assoc, aid, ssid, ..) 1279 * - change_chanctx (if needed) 1280 * - event_callback 1281 * - mgd_complete_tx 1282 */ 1283 1284 out: 1285 LKPI_80211_LHW_UNLOCK(lhw); 1286 IEEE80211_LOCK(vap->iv_ic); 1287 if (ni != NULL) 1288 ieee80211_free_node(ni); 1289 return (error); 1290 } 1291 1292 /* auth_to_auth, assoc_to_assoc. */ 1293 static int 1294 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1295 { 1296 struct lkpi_hw *lhw; 1297 struct ieee80211_hw *hw; 1298 struct lkpi_vif *lvif; 1299 struct ieee80211_vif *vif; 1300 struct ieee80211_node *ni; 1301 struct lkpi_sta *lsta; 1302 struct ieee80211_prep_tx_info prep_tx_info; 1303 1304 lhw = vap->iv_ic->ic_softc; 1305 hw = LHW_TO_HW(lhw); 1306 lvif = VAP_TO_LVIF(vap); 1307 vif = LVIF_TO_VIF(lvif); 1308 1309 ni = ieee80211_ref_node(vap->iv_bss); 1310 1311 IEEE80211_UNLOCK(vap->iv_ic); 1312 LKPI_80211_LHW_LOCK(lhw); 1313 lsta = ni->ni_drv_data; 1314 1315 IMPROVE("event callback?"); 1316 1317 /* End mgd_complete_tx. */ 1318 if (lsta->in_mgd) { 1319 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1320 prep_tx_info.success = false; 1321 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1322 lsta->in_mgd = false; 1323 } 1324 1325 /* Now start assoc. */ 1326 1327 /* Start mgd_prepare_tx. */ 1328 if (!lsta->in_mgd) { 1329 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1330 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1331 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1332 lsta->in_mgd = true; 1333 } 1334 1335 LKPI_80211_LHW_UNLOCK(lhw); 1336 IEEE80211_LOCK(vap->iv_ic); 1337 if (ni != NULL) 1338 ieee80211_free_node(ni); 1339 1340 return (0); 1341 } 1342 1343 static int 1344 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1345 { 1346 struct lkpi_hw *lhw; 1347 struct ieee80211_hw *hw; 1348 struct lkpi_vif *lvif; 1349 struct ieee80211_vif *vif; 1350 struct ieee80211_node *ni; 1351 struct lkpi_sta *lsta; 1352 struct ieee80211_sta *sta; 1353 struct ieee80211_prep_tx_info prep_tx_info; 1354 enum ieee80211_bss_changed bss_changed; 1355 int error; 1356 1357 lhw = vap->iv_ic->ic_softc; 1358 hw = LHW_TO_HW(lhw); 1359 lvif = VAP_TO_LVIF(vap); 1360 vif = LVIF_TO_VIF(lvif); 1361 1362 /* Keep ni around. */ 1363 ni = ieee80211_ref_node(vap->iv_bss); 1364 lsta = ni->ni_drv_data; 1365 sta = LSTA_TO_STA(lsta); 1366 1367 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1368 1369 IEEE80211_UNLOCK(vap->iv_ic); 1370 LKPI_80211_LHW_LOCK(lhw); 1371 1372 /* flush, drop. */ 1373 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1374 1375 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1376 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1377 !lsta->in_mgd) { 1378 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1379 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1380 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1381 lsta->in_mgd = true; 1382 } 1383 1384 LKPI_80211_LHW_UNLOCK(lhw); 1385 IEEE80211_LOCK(vap->iv_ic); 1386 1387 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1388 error = lvif->iv_newstate(vap, nstate, arg); 1389 if (error != 0) 1390 goto outni; 1391 1392 IEEE80211_UNLOCK(vap->iv_ic); 1393 LKPI_80211_LHW_LOCK(lhw); 1394 1395 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1396 1397 /* Wake tx queues to get packet(s) out. */ 1398 lkpi_wake_tx_queues(hw, sta, true, true); 1399 1400 /* flush, no drop */ 1401 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1402 1403 /* End mgd_complete_tx. */ 1404 if (lsta->in_mgd) { 1405 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1406 prep_tx_info.success = false; 1407 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1408 lsta->in_mgd = false; 1409 } 1410 1411 /* sync_rx_queues */ 1412 lkpi_80211_mo_sync_rx_queues(hw); 1413 1414 /* sta_pre_rcu_remove */ 1415 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1416 1417 /* Take the station down. */ 1418 1419 /* Update sta and change state (from AUTH) to NONE. */ 1420 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1421 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1422 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1423 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1424 if (error != 0) 1425 goto out; 1426 1427 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1428 1429 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1430 /* 1431 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 1432 * as otherwise drivers (iwlwifi at least) will silently not remove 1433 * the sta from the firmware and when we will add a new one trigger 1434 * a fw assert. 1435 */ 1436 lkpi_disassoc(sta, vif, lhw); 1437 1438 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1439 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1440 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1441 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1442 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1443 if (error != 0) { 1444 IMPROVE("do we need to undo the chan ctx?"); 1445 goto out; 1446 } 1447 1448 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1449 1450 IMPROVE("Any bss_info changes to announce?"); 1451 bss_changed = 0; 1452 vif->bss_conf.qos = 0; 1453 bss_changed |= BSS_CHANGED_QOS; 1454 vif->cfg.ssid_len = 0; 1455 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1456 bss_changed |= BSS_CHANGED_BSSID; 1457 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1458 1459 lkpi_lsta_remove(lsta, lvif); 1460 1461 /* conf_tx */ 1462 1463 /* Take the chan ctx down. */ 1464 if (vif->chanctx_conf != NULL) { 1465 struct lkpi_chanctx *lchanctx; 1466 struct ieee80211_chanctx_conf *conf; 1467 1468 conf = vif->chanctx_conf; 1469 /* Remove vif context. */ 1470 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1471 /* NB: vif->chanctx_conf is NULL now. */ 1472 1473 /* Remove chan ctx. */ 1474 lkpi_80211_mo_remove_chanctx(hw, conf); 1475 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1476 free(lchanctx, M_LKPI80211); 1477 } 1478 1479 error = EALREADY; 1480 out: 1481 LKPI_80211_LHW_UNLOCK(lhw); 1482 IEEE80211_LOCK(vap->iv_ic); 1483 outni: 1484 if (ni != NULL) 1485 ieee80211_free_node(ni); 1486 return (error); 1487 } 1488 1489 static int 1490 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1491 { 1492 int error; 1493 1494 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1495 if (error != 0 && error != EALREADY) 1496 return (error); 1497 1498 /* At this point iv_bss is long a new node! */ 1499 1500 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1501 return (error); 1502 } 1503 1504 static int 1505 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1506 { 1507 int error; 1508 1509 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1510 return (error); 1511 } 1512 1513 static int 1514 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1515 { 1516 int error; 1517 1518 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1519 return (error); 1520 } 1521 1522 static int 1523 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1524 { 1525 struct lkpi_hw *lhw; 1526 struct ieee80211_hw *hw; 1527 struct lkpi_vif *lvif; 1528 struct ieee80211_vif *vif; 1529 struct ieee80211_node *ni; 1530 struct lkpi_sta *lsta; 1531 struct ieee80211_sta *sta; 1532 struct ieee80211_prep_tx_info prep_tx_info; 1533 enum ieee80211_bss_changed bss_changed; 1534 int error; 1535 1536 lhw = vap->iv_ic->ic_softc; 1537 hw = LHW_TO_HW(lhw); 1538 lvif = VAP_TO_LVIF(vap); 1539 vif = LVIF_TO_VIF(lvif); 1540 1541 IEEE80211_UNLOCK(vap->iv_ic); 1542 LKPI_80211_LHW_LOCK(lhw); 1543 ni = NULL; 1544 1545 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1546 "and to lesser extend ieee80211_notify_node_join"); 1547 1548 /* Finish assoc. */ 1549 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1550 ni = ieee80211_ref_node(vap->iv_bss); 1551 lsta = ni->ni_drv_data; 1552 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1553 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1554 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1555 sta = LSTA_TO_STA(lsta); 1556 sta->aid = IEEE80211_NODE_AID(ni); 1557 #ifdef LKPI_80211_WME 1558 if (vap->iv_flags & IEEE80211_F_WME) 1559 sta->wme = true; 1560 #endif 1561 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1562 if (error != 0) 1563 goto out; 1564 1565 IMPROVE("wme / conf_tx [all]"); 1566 1567 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1568 bss_changed = 0; 1569 #ifdef LKPI_80211_WME 1570 bss_changed |= lkpi_wme_update(lhw, vap, true); 1571 #endif 1572 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 1573 vif->cfg.assoc = true; 1574 vif->cfg.aid = IEEE80211_NODE_AID(ni); 1575 bss_changed |= BSS_CHANGED_ASSOC; 1576 } 1577 /* We set SSID but this is not BSSID! */ 1578 vif->cfg.ssid_len = ni->ni_esslen; 1579 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 1580 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1581 vif->bss_conf.use_short_preamble) { 1582 vif->bss_conf.use_short_preamble ^= 1; 1583 /* bss_changed |= BSS_CHANGED_??? */ 1584 } 1585 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1586 vif->bss_conf.use_short_slot) { 1587 vif->bss_conf.use_short_slot ^= 1; 1588 /* bss_changed |= BSS_CHANGED_??? */ 1589 } 1590 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1591 vif->bss_conf.qos) { 1592 vif->bss_conf.qos ^= 1; 1593 bss_changed |= BSS_CHANGED_QOS; 1594 } 1595 1596 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1597 1598 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1599 1600 /* - change_chanctx (if needed) 1601 * - event_callback 1602 */ 1603 1604 /* End mgd_complete_tx. */ 1605 if (lsta->in_mgd) { 1606 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1607 prep_tx_info.success = true; 1608 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1609 lsta->in_mgd = false; 1610 } 1611 1612 lkpi_hw_conf_idle(hw, false); 1613 1614 /* 1615 * And then: 1616 * - (more packets)? 1617 * - set_key 1618 * - set_default_unicast_key 1619 * - set_key (?) 1620 * - ipv6_addr_change (?) 1621 */ 1622 /* Prepare_multicast && configure_filter. */ 1623 lhw->update_mc = true; 1624 lkpi_update_mcast_filter(vap->iv_ic, true); 1625 1626 if (!ieee80211_node_is_authorized(ni)) { 1627 IMPROVE("net80211 does not consider node authorized"); 1628 } 1629 1630 /* Update sta_state (ASSOC to AUTHORIZED). */ 1631 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1632 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1633 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1634 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1635 if (error != 0) { 1636 IMPROVE("undo some changes?"); 1637 goto out; 1638 } 1639 1640 /* - drv_config (?) 1641 * - bss_info_changed 1642 * - set_rekey_data (?) 1643 * 1644 * And now we should be passing packets. 1645 */ 1646 IMPROVE("Need that bssid setting, and the keys"); 1647 1648 bss_changed = 0; 1649 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1650 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1651 1652 out: 1653 LKPI_80211_LHW_UNLOCK(lhw); 1654 IEEE80211_LOCK(vap->iv_ic); 1655 if (ni != NULL) 1656 ieee80211_free_node(ni); 1657 return (error); 1658 } 1659 1660 static int 1661 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1662 { 1663 int error; 1664 1665 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1666 if (error == 0) 1667 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1668 return (error); 1669 } 1670 1671 static int 1672 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1673 { 1674 struct lkpi_hw *lhw; 1675 struct ieee80211_hw *hw; 1676 struct lkpi_vif *lvif; 1677 struct ieee80211_vif *vif; 1678 struct ieee80211_node *ni; 1679 struct lkpi_sta *lsta; 1680 struct ieee80211_sta *sta; 1681 struct ieee80211_prep_tx_info prep_tx_info; 1682 #if 0 1683 enum ieee80211_bss_changed bss_changed; 1684 #endif 1685 int error; 1686 1687 lhw = vap->iv_ic->ic_softc; 1688 hw = LHW_TO_HW(lhw); 1689 lvif = VAP_TO_LVIF(vap); 1690 vif = LVIF_TO_VIF(lvif); 1691 1692 /* Keep ni around. */ 1693 ni = ieee80211_ref_node(vap->iv_bss); 1694 lsta = ni->ni_drv_data; 1695 sta = LSTA_TO_STA(lsta); 1696 1697 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1698 1699 IEEE80211_UNLOCK(vap->iv_ic); 1700 LKPI_80211_LHW_LOCK(lhw); 1701 1702 /* flush, drop. */ 1703 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1704 1705 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1706 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1707 !lsta->in_mgd) { 1708 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1709 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1710 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1711 lsta->in_mgd = true; 1712 } 1713 1714 LKPI_80211_LHW_UNLOCK(lhw); 1715 IEEE80211_LOCK(vap->iv_ic); 1716 1717 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1718 error = lvif->iv_newstate(vap, nstate, arg); 1719 if (error != 0) 1720 goto outni; 1721 1722 IEEE80211_UNLOCK(vap->iv_ic); 1723 LKPI_80211_LHW_LOCK(lhw); 1724 1725 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1726 1727 /* Wake tx queues to get packet(s) out. */ 1728 lkpi_wake_tx_queues(hw, sta, true, true); 1729 1730 /* flush, no drop */ 1731 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1732 1733 /* End mgd_complete_tx. */ 1734 if (lsta->in_mgd) { 1735 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1736 prep_tx_info.success = false; 1737 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1738 lsta->in_mgd = false; 1739 } 1740 1741 #if 0 1742 /* sync_rx_queues */ 1743 lkpi_80211_mo_sync_rx_queues(hw); 1744 1745 /* sta_pre_rcu_remove */ 1746 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1747 #endif 1748 1749 /* Take the station down. */ 1750 1751 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1752 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1753 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1754 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1755 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1756 if (error != 0) 1757 goto out; 1758 1759 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1760 1761 /* Update sta_state (ASSOC to AUTH). */ 1762 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1763 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1764 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1765 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1766 if (error != 0) 1767 goto out; 1768 1769 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1770 1771 #if 0 1772 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1773 lkpi_disassoc(sta, vif, lhw); 1774 #endif 1775 1776 error = EALREADY; 1777 out: 1778 LKPI_80211_LHW_UNLOCK(lhw); 1779 IEEE80211_LOCK(vap->iv_ic); 1780 outni: 1781 if (ni != NULL) 1782 ieee80211_free_node(ni); 1783 return (error); 1784 } 1785 1786 static int 1787 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1788 { 1789 struct lkpi_hw *lhw; 1790 struct ieee80211_hw *hw; 1791 struct lkpi_vif *lvif; 1792 struct ieee80211_vif *vif; 1793 struct ieee80211_node *ni; 1794 struct lkpi_sta *lsta; 1795 struct ieee80211_sta *sta; 1796 struct ieee80211_prep_tx_info prep_tx_info; 1797 enum ieee80211_bss_changed bss_changed; 1798 int error; 1799 1800 lhw = vap->iv_ic->ic_softc; 1801 hw = LHW_TO_HW(lhw); 1802 lvif = VAP_TO_LVIF(vap); 1803 vif = LVIF_TO_VIF(lvif); 1804 1805 /* Keep ni around. */ 1806 ni = ieee80211_ref_node(vap->iv_bss); 1807 lsta = ni->ni_drv_data; 1808 sta = LSTA_TO_STA(lsta); 1809 1810 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1811 1812 IEEE80211_UNLOCK(vap->iv_ic); 1813 LKPI_80211_LHW_LOCK(lhw); 1814 1815 /* flush, drop. */ 1816 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1817 1818 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1819 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1820 !lsta->in_mgd) { 1821 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1822 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1823 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1824 lsta->in_mgd = true; 1825 } 1826 1827 LKPI_80211_LHW_UNLOCK(lhw); 1828 IEEE80211_LOCK(vap->iv_ic); 1829 1830 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1831 error = lvif->iv_newstate(vap, nstate, arg); 1832 if (error != 0) 1833 goto outni; 1834 1835 IEEE80211_UNLOCK(vap->iv_ic); 1836 LKPI_80211_LHW_LOCK(lhw); 1837 1838 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1839 1840 /* Wake tx queues to get packet(s) out. */ 1841 lkpi_wake_tx_queues(hw, sta, true, true); 1842 1843 /* flush, no drop */ 1844 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1845 1846 /* End mgd_complete_tx. */ 1847 if (lsta->in_mgd) { 1848 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1849 prep_tx_info.success = false; 1850 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1851 lsta->in_mgd = false; 1852 } 1853 1854 /* sync_rx_queues */ 1855 lkpi_80211_mo_sync_rx_queues(hw); 1856 1857 /* sta_pre_rcu_remove */ 1858 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1859 1860 /* Take the station down. */ 1861 1862 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1863 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1864 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1865 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1866 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1867 if (error != 0) 1868 goto out; 1869 1870 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1871 1872 /* Update sta_state (ASSOC to AUTH). */ 1873 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1874 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1875 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1876 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1877 if (error != 0) 1878 goto out; 1879 1880 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1881 1882 /* Update sta and change state (from AUTH) to NONE. */ 1883 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1884 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1885 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1886 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1887 if (error != 0) 1888 goto out; 1889 1890 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1891 1892 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1893 /* 1894 * One would expect this to happen when going off AUTHORIZED. 1895 * See comment there; removes the sta from fw. 1896 */ 1897 lkpi_disassoc(sta, vif, lhw); 1898 1899 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1900 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1901 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1902 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1903 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1904 if (error != 0) { 1905 IMPROVE("do we need to undo the chan ctx?"); 1906 goto out; 1907 } 1908 1909 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1910 1911 IMPROVE("Any bss_info changes to announce?"); 1912 bss_changed = 0; 1913 vif->bss_conf.qos = 0; 1914 bss_changed |= BSS_CHANGED_QOS; 1915 vif->cfg.ssid_len = 0; 1916 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1917 bss_changed |= BSS_CHANGED_BSSID; 1918 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1919 1920 lkpi_lsta_remove(lsta, lvif); 1921 1922 /* conf_tx */ 1923 1924 /* Take the chan ctx down. */ 1925 if (vif->chanctx_conf != NULL) { 1926 struct lkpi_chanctx *lchanctx; 1927 struct ieee80211_chanctx_conf *conf; 1928 1929 conf = vif->chanctx_conf; 1930 /* Remove vif context. */ 1931 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1932 /* NB: vif->chanctx_conf is NULL now. */ 1933 1934 /* Remove chan ctx. */ 1935 lkpi_80211_mo_remove_chanctx(hw, conf); 1936 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1937 free(lchanctx, M_LKPI80211); 1938 } 1939 1940 error = EALREADY; 1941 out: 1942 LKPI_80211_LHW_UNLOCK(lhw); 1943 IEEE80211_LOCK(vap->iv_ic); 1944 outni: 1945 if (ni != NULL) 1946 ieee80211_free_node(ni); 1947 return (error); 1948 } 1949 1950 static int 1951 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1952 { 1953 1954 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1955 } 1956 1957 static int 1958 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1959 { 1960 int error; 1961 1962 error = lkpi_sta_run_to_init(vap, nstate, arg); 1963 if (error != 0 && error != EALREADY) 1964 return (error); 1965 1966 /* At this point iv_bss is long a new node! */ 1967 1968 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1969 return (error); 1970 } 1971 1972 /* -------------------------------------------------------------------------- */ 1973 1974 /* 1975 * The matches the documented state changes in net80211::sta_newstate(). 1976 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1977 * there are "invalid" (so there is a room for failure here). 1978 */ 1979 struct fsm_state { 1980 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1981 enum ieee80211_state ostate; 1982 enum ieee80211_state nstate; 1983 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1984 } sta_state_fsm[] = { 1985 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1986 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1987 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1988 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1989 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1990 1991 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1992 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1993 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1994 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1995 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1996 1997 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1998 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1999 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2000 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2001 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2002 2003 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2004 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2005 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2006 2007 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2008 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2009 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2010 2011 /* Dummy at the end without handler. */ 2012 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2013 }; 2014 2015 static int 2016 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2017 { 2018 struct ieee80211com *ic; 2019 struct lkpi_hw *lhw; 2020 struct lkpi_vif *lvif; 2021 struct ieee80211_vif *vif; 2022 struct fsm_state *s; 2023 enum ieee80211_state ostate; 2024 int error; 2025 2026 ic = vap->iv_ic; 2027 IEEE80211_LOCK_ASSERT(ic); 2028 ostate = vap->iv_state; 2029 2030 #ifdef LINUXKPI_DEBUG_80211 2031 if (linuxkpi_debug_80211 & D80211_TRACE) 2032 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2033 __func__, __LINE__, vap, nstate, arg); 2034 #endif 2035 2036 if (vap->iv_opmode == IEEE80211_M_STA) { 2037 2038 lhw = ic->ic_softc; 2039 lvif = VAP_TO_LVIF(vap); 2040 vif = LVIF_TO_VIF(lvif); 2041 2042 /* No need to replicate this in most state handlers. */ 2043 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2044 lkpi_stop_hw_scan(lhw, vif); 2045 2046 s = sta_state_fsm; 2047 2048 } else { 2049 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2050 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2051 return (ENOSYS); 2052 } 2053 2054 error = 0; 2055 for (; s->handler != NULL; s++) { 2056 if (ostate == s->ostate && nstate == s->nstate) { 2057 #ifdef LINUXKPI_DEBUG_80211 2058 if (linuxkpi_debug_80211 & D80211_TRACE) 2059 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2060 " %d (%s): arg %d.\n", __func__, 2061 ostate, ieee80211_state_name[ostate], 2062 nstate, ieee80211_state_name[nstate], arg); 2063 #endif 2064 error = s->handler(vap, nstate, arg); 2065 break; 2066 } 2067 } 2068 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2069 2070 if (s->handler == NULL) { 2071 IMPROVE("turn this into a KASSERT\n"); 2072 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2073 "%d (%s) -> %d (%s)\n", __func__, 2074 ostate, ieee80211_state_name[ostate], 2075 nstate, ieee80211_state_name[nstate]); 2076 return (ENOSYS); 2077 } 2078 2079 if (error == EALREADY) { 2080 #ifdef LINUXKPI_DEBUG_80211 2081 if (linuxkpi_debug_80211 & D80211_TRACE) 2082 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2083 "%d (%s): iv_newstate already handled: %d.\n", 2084 __func__, ostate, ieee80211_state_name[ostate], 2085 nstate, ieee80211_state_name[nstate], error); 2086 #endif 2087 return (0); 2088 } 2089 2090 if (error != 0) { 2091 /* XXX-BZ currently expected so ignore. */ 2092 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2093 "%d (%s) -> %d (%s)\n", __func__, error, 2094 ostate, ieee80211_state_name[ostate], 2095 nstate, ieee80211_state_name[nstate]); 2096 /* return (error); */ 2097 } 2098 2099 #ifdef LINUXKPI_DEBUG_80211 2100 if (linuxkpi_debug_80211 & D80211_TRACE) 2101 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2102 "calling net80211 parent\n", 2103 __func__, __LINE__, vap, nstate, arg); 2104 #endif 2105 2106 return (lvif->iv_newstate(vap, nstate, arg)); 2107 } 2108 2109 /* -------------------------------------------------------------------------- */ 2110 2111 /* 2112 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2113 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2114 * new node without us knowing and thus our ni/lsta are out of sync. 2115 */ 2116 static struct ieee80211_node * 2117 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2118 { 2119 struct lkpi_vif *lvif; 2120 struct ieee80211_node *obss; 2121 struct lkpi_sta *lsta; 2122 struct ieee80211_sta *sta; 2123 2124 obss = vap->iv_bss; 2125 2126 #ifdef LINUXKPI_DEBUG_80211 2127 if (linuxkpi_debug_80211 & D80211_TRACE) 2128 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2129 "ni %p ni_drv_data %p\n", __func__, 2130 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2131 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2132 #endif 2133 2134 /* Nothing to copy from. Just return. */ 2135 if (obss == NULL || obss->ni_drv_data == NULL) 2136 goto out; 2137 2138 /* Nothing to copy to. Just return. */ 2139 IMPROVE("clearing the obss might still be needed?"); 2140 if (ni == NULL) 2141 goto out; 2142 2143 /* Nothing changed? panic? */ 2144 if (obss == ni) 2145 goto out; 2146 2147 lsta = obss->ni_drv_data; 2148 obss->ni_drv_data = ni->ni_drv_data; 2149 ni->ni_drv_data = lsta; 2150 if (lsta != NULL) { 2151 lsta->ni = ni; 2152 sta = LSTA_TO_STA(lsta); 2153 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2154 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2155 } 2156 lsta = obss->ni_drv_data; 2157 if (lsta != NULL) { 2158 lsta->ni = obss; 2159 sta = LSTA_TO_STA(lsta); 2160 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2161 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2162 } 2163 2164 out: 2165 lvif = VAP_TO_LVIF(vap); 2166 return (lvif->iv_update_bss(vap, ni)); 2167 } 2168 2169 #ifdef LKPI_80211_WME 2170 static int 2171 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2172 { 2173 struct ieee80211com *ic; 2174 struct ieee80211_hw *hw; 2175 struct lkpi_vif *lvif; 2176 struct ieee80211_vif *vif; 2177 struct chanAccParams chp; 2178 struct wmeParams wmeparr[WME_NUM_AC]; 2179 struct ieee80211_tx_queue_params txqp; 2180 enum ieee80211_bss_changed changed; 2181 int error; 2182 uint16_t ac; 2183 2184 IMPROVE(); 2185 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2186 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2187 2188 if (vap == NULL) 2189 return (0); 2190 2191 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2192 return (0); 2193 2194 if (lhw->ops->conf_tx == NULL) 2195 return (0); 2196 2197 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2198 lhw->update_wme = true; 2199 return (0); 2200 } 2201 lhw->update_wme = false; 2202 2203 ic = lhw->ic; 2204 ieee80211_wme_ic_getparams(ic, &chp); 2205 IEEE80211_LOCK(ic); 2206 for (ac = 0; ac < WME_NUM_AC; ac++) 2207 wmeparr[ac] = chp.cap_wmeParams[ac]; 2208 IEEE80211_UNLOCK(ic); 2209 2210 hw = LHW_TO_HW(lhw); 2211 lvif = VAP_TO_LVIF(vap); 2212 vif = LVIF_TO_VIF(lvif); 2213 2214 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2215 LKPI_80211_LHW_LOCK(lhw); 2216 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2217 struct wmeParams *wmep; 2218 2219 wmep = &wmeparr[ac]; 2220 bzero(&txqp, sizeof(txqp)); 2221 txqp.cw_min = wmep->wmep_logcwmin; 2222 txqp.cw_max = wmep->wmep_logcwmax; 2223 txqp.txop = wmep->wmep_txopLimit; 2224 txqp.aifs = wmep->wmep_aifsn; 2225 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2226 if (error != 0) 2227 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2228 __func__, ac, error); 2229 } 2230 LKPI_80211_LHW_UNLOCK(lhw); 2231 changed = BSS_CHANGED_QOS; 2232 if (!planned) 2233 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2234 2235 return (changed); 2236 } 2237 #endif 2238 2239 static int 2240 lkpi_ic_wme_update(struct ieee80211com *ic) 2241 { 2242 #ifdef LKPI_80211_WME 2243 struct ieee80211vap *vap; 2244 struct lkpi_hw *lhw; 2245 2246 IMPROVE("Use the per-VAP callback in net80211."); 2247 vap = TAILQ_FIRST(&ic->ic_vaps); 2248 if (vap == NULL) 2249 return (0); 2250 2251 lhw = ic->ic_softc; 2252 2253 lkpi_wme_update(lhw, vap, false); 2254 #endif 2255 return (0); /* unused */ 2256 } 2257 2258 static struct ieee80211vap * 2259 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2260 int unit, enum ieee80211_opmode opmode, int flags, 2261 const uint8_t bssid[IEEE80211_ADDR_LEN], 2262 const uint8_t mac[IEEE80211_ADDR_LEN]) 2263 { 2264 struct lkpi_hw *lhw; 2265 struct ieee80211_hw *hw; 2266 struct lkpi_vif *lvif; 2267 struct ieee80211vap *vap; 2268 struct ieee80211_vif *vif; 2269 struct ieee80211_tx_queue_params txqp; 2270 enum ieee80211_bss_changed changed; 2271 size_t len; 2272 int error, i; 2273 uint16_t ac; 2274 2275 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2276 return (NULL); 2277 2278 lhw = ic->ic_softc; 2279 hw = LHW_TO_HW(lhw); 2280 2281 len = sizeof(*lvif); 2282 len += hw->vif_data_size; /* vif->drv_priv */ 2283 2284 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2285 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2286 TAILQ_INIT(&lvif->lsta_head); 2287 vap = LVIF_TO_VAP(lvif); 2288 2289 vif = LVIF_TO_VIF(lvif); 2290 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2291 vif->p2p = false; 2292 vif->probe_req_reg = false; 2293 vif->type = lkpi_opmode_to_vif_type(opmode); 2294 lvif->wdev.iftype = vif->type; 2295 /* Need to fill in other fields as well. */ 2296 IMPROVE(); 2297 2298 /* XXX-BZ hardcoded for now! */ 2299 #if 1 2300 vif->chanctx_conf = NULL; 2301 vif->bss_conf.vif = vif; 2302 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2303 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2304 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2305 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2306 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2307 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2308 vif->bss_conf.qos = false; 2309 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2310 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2311 vif->cfg.aid = 0; 2312 vif->cfg.assoc = false; 2313 vif->cfg.idle = true; 2314 vif->cfg.ps = false; 2315 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2316 /* 2317 * We need to initialize it to something as the bss_info_changed call 2318 * will try to copy from it in iwlwifi and NULL is a panic. 2319 * We will set the proper one in scan_to_auth() before being assoc. 2320 */ 2321 vif->bss_conf.bssid = ieee80211broadcastaddr; 2322 #endif 2323 #if 0 2324 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2325 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2326 vif->bss_conf.beacon_int = ic->ic_bintval; 2327 /* iwlwifi bug. */ 2328 if (vif->bss_conf.beacon_int < 16) 2329 vif->bss_conf.beacon_int = 16; 2330 #endif 2331 2332 /* Link Config */ 2333 vif->link_conf[0] = &vif->bss_conf; 2334 for (i = 0; i < nitems(vif->link_conf); i++) { 2335 IMPROVE("more than 1 link one day"); 2336 } 2337 2338 /* Setup queue defaults; driver may override in (*add_interface). */ 2339 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2340 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2341 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2342 else if (hw->queues >= IEEE80211_NUM_ACS) 2343 vif->hw_queue[i] = i; 2344 else 2345 vif->hw_queue[i] = 0; 2346 2347 /* Initialize the queue to running. Stopped? */ 2348 lvif->hw_queue_stopped[i] = false; 2349 } 2350 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2351 2352 IMPROVE(); 2353 2354 error = lkpi_80211_mo_start(hw); 2355 if (error != 0) { 2356 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2357 mtx_destroy(&lvif->mtx); 2358 free(lvif, M_80211_VAP); 2359 return (NULL); 2360 } 2361 2362 error = lkpi_80211_mo_add_interface(hw, vif); 2363 if (error != 0) { 2364 IMPROVE(); /* XXX-BZ mo_stop()? */ 2365 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2366 mtx_destroy(&lvif->mtx); 2367 free(lvif, M_80211_VAP); 2368 return (NULL); 2369 } 2370 2371 LKPI_80211_LHW_LVIF_LOCK(lhw); 2372 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2373 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2374 2375 /* Set bss_info. */ 2376 changed = 0; 2377 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2378 2379 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2380 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2381 LKPI_80211_LHW_LOCK(lhw); 2382 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2383 2384 bzero(&txqp, sizeof(txqp)); 2385 txqp.cw_min = 15; 2386 txqp.cw_max = 1023; 2387 txqp.txop = 0; 2388 txqp.aifs = 2; 2389 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2390 if (error != 0) 2391 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2392 __func__, ac, error); 2393 } 2394 LKPI_80211_LHW_UNLOCK(lhw); 2395 changed = BSS_CHANGED_QOS; 2396 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2397 2398 /* Force MC init. */ 2399 lkpi_update_mcast_filter(ic, true); 2400 2401 IMPROVE(); 2402 2403 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2404 2405 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2406 lvif->iv_newstate = vap->iv_newstate; 2407 vap->iv_newstate = lkpi_iv_newstate; 2408 lvif->iv_update_bss = vap->iv_update_bss; 2409 vap->iv_update_bss = lkpi_iv_update_bss; 2410 2411 /* Key management. */ 2412 if (lhw->ops->set_key != NULL) { 2413 #ifdef LKPI_80211_HW_CRYPTO 2414 vap->iv_key_set = lkpi_iv_key_set; 2415 vap->iv_key_delete = lkpi_iv_key_delete; 2416 #endif 2417 } 2418 2419 ieee80211_ratectl_init(vap); 2420 2421 /* Complete setup. */ 2422 ieee80211_vap_attach(vap, ieee80211_media_change, 2423 ieee80211_media_status, mac); 2424 2425 if (hw->max_listen_interval == 0) 2426 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2427 hw->conf.listen_interval = hw->max_listen_interval; 2428 ic->ic_set_channel(ic); 2429 2430 /* XXX-BZ do we need to be able to update these? */ 2431 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2432 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2433 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2434 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2435 /* any others? */ 2436 IMPROVE(); 2437 2438 return (vap); 2439 } 2440 2441 void 2442 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2443 { 2444 2445 wiphy_unregister(hw->wiphy); 2446 linuxkpi_ieee80211_ifdetach(hw); 2447 2448 IMPROVE(); 2449 } 2450 2451 void 2452 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2453 { 2454 2455 TODO(); 2456 } 2457 2458 static void 2459 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2460 { 2461 struct ieee80211com *ic; 2462 struct lkpi_hw *lhw; 2463 struct ieee80211_hw *hw; 2464 struct lkpi_vif *lvif; 2465 struct ieee80211_vif *vif; 2466 2467 lvif = VAP_TO_LVIF(vap); 2468 vif = LVIF_TO_VIF(lvif); 2469 ic = vap->iv_ic; 2470 lhw = ic->ic_softc; 2471 hw = LHW_TO_HW(lhw); 2472 2473 LKPI_80211_LHW_LVIF_LOCK(lhw); 2474 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2475 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2476 2477 ieee80211_ratectl_deinit(vap); 2478 ieee80211_vap_detach(vap); 2479 2480 IMPROVE("clear up other bits in this state"); 2481 2482 lkpi_80211_mo_remove_interface(hw, vif); 2483 2484 /* Single VAP, so we can do this here. */ 2485 lkpi_80211_mo_stop(hw); 2486 2487 mtx_destroy(&lvif->mtx); 2488 free(lvif, M_80211_VAP); 2489 } 2490 2491 static void 2492 lkpi_ic_update_mcast(struct ieee80211com *ic) 2493 { 2494 2495 lkpi_update_mcast_filter(ic, false); 2496 TRACEOK(); 2497 } 2498 2499 static void 2500 lkpi_ic_update_promisc(struct ieee80211com *ic) 2501 { 2502 2503 UNIMPLEMENTED; 2504 } 2505 2506 static void 2507 lkpi_ic_update_chw(struct ieee80211com *ic) 2508 { 2509 2510 UNIMPLEMENTED; 2511 } 2512 2513 /* Start / stop device. */ 2514 static void 2515 lkpi_ic_parent(struct ieee80211com *ic) 2516 { 2517 struct lkpi_hw *lhw; 2518 #ifdef HW_START_STOP 2519 struct ieee80211_hw *hw; 2520 int error; 2521 #endif 2522 bool start_all; 2523 2524 IMPROVE(); 2525 2526 lhw = ic->ic_softc; 2527 #ifdef HW_START_STOP 2528 hw = LHW_TO_HW(lhw); 2529 #endif 2530 start_all = false; 2531 2532 /* IEEE80211_UNLOCK(ic); */ 2533 LKPI_80211_LHW_LOCK(lhw); 2534 if (ic->ic_nrunning > 0) { 2535 #ifdef HW_START_STOP 2536 error = lkpi_80211_mo_start(hw); 2537 if (error == 0) 2538 #endif 2539 start_all = true; 2540 } else { 2541 #ifdef HW_START_STOP 2542 lkpi_80211_mo_stop(hw); 2543 #endif 2544 } 2545 LKPI_80211_LHW_UNLOCK(lhw); 2546 /* IEEE80211_LOCK(ic); */ 2547 2548 if (start_all) 2549 ieee80211_start_all(ic); 2550 } 2551 2552 bool 2553 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2554 size_t ie_ids_len) 2555 { 2556 int i; 2557 2558 for (i = 0; i < ie_ids_len; i++) { 2559 if (ie == *ie_ids) 2560 return (true); 2561 } 2562 2563 return (false); 2564 } 2565 2566 /* Return true if skipped; false if error. */ 2567 bool 2568 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2569 { 2570 size_t x; 2571 uint8_t l; 2572 2573 x = *xp; 2574 2575 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2576 __func__, x, ies_len, ies)); 2577 l = ies[x + 1]; 2578 x += 2 + l; 2579 2580 if (x > ies_len) 2581 return (false); 2582 2583 *xp = x; 2584 return (true); 2585 } 2586 2587 static uint8_t * 2588 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2589 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2590 { 2591 struct ieee80211_supported_band *supband; 2592 struct linuxkpi_ieee80211_channel *channels; 2593 struct ieee80211com *ic; 2594 const struct ieee80211_channel *chan; 2595 const struct ieee80211_rateset *rs; 2596 uint8_t *pb; 2597 int band, i; 2598 2599 ic = vap->iv_ic; 2600 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2601 if ((band_mask & (1 << band)) == 0) 2602 continue; 2603 2604 supband = hw->wiphy->bands[band]; 2605 /* 2606 * This should not happen; 2607 * band_mask is a bitmask of valid bands to scan on. 2608 */ 2609 if (supband == NULL || supband->n_channels == 0) 2610 continue; 2611 2612 /* Find a first channel to get the mode and rates from. */ 2613 channels = supband->channels; 2614 chan = NULL; 2615 for (i = 0; i < supband->n_channels; i++) { 2616 2617 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2618 continue; 2619 2620 chan = ieee80211_find_channel(ic, 2621 channels[i].center_freq, 0); 2622 if (chan != NULL) 2623 break; 2624 } 2625 2626 /* This really should not happen. */ 2627 if (chan == NULL) 2628 continue; 2629 2630 pb = p; 2631 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 2632 p = ieee80211_add_rates(p, rs); 2633 p = ieee80211_add_xrates(p, rs); 2634 2635 #if defined(LKPI_80211_HT) 2636 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 2637 struct ieee80211_channel *c; 2638 2639 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2640 vap->iv_flags_ht); 2641 p = ieee80211_add_htcap_ch(p, vap, c); 2642 } 2643 #endif 2644 #if defined(LKPI_80211_VHT) 2645 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 2646 struct ieee80211_channel *c; 2647 2648 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2649 vap->iv_flags_ht); 2650 c = ieee80211_vht_adjust_channel(ic, c, 2651 vap->iv_vht_flags); 2652 p = ieee80211_add_vhtcap_ch(p, vap, c); 2653 } 2654 #endif 2655 2656 scan_ies->ies[band] = pb; 2657 scan_ies->len[band] = p - pb; 2658 } 2659 2660 /* Add common_ies */ 2661 pb = p; 2662 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2663 vap->iv_wpa_ie != NULL) { 2664 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2665 p += 2 + vap->iv_wpa_ie[1]; 2666 } 2667 if (vap->iv_appie_probereq != NULL) { 2668 memcpy(p, vap->iv_appie_probereq->ie_data, 2669 vap->iv_appie_probereq->ie_len); 2670 p += vap->iv_appie_probereq->ie_len; 2671 } 2672 scan_ies->common_ies = pb; 2673 scan_ies->common_ie_len = p - pb; 2674 2675 return (p); 2676 } 2677 2678 static void 2679 lkpi_ic_scan_start(struct ieee80211com *ic) 2680 { 2681 struct lkpi_hw *lhw; 2682 struct ieee80211_hw *hw; 2683 struct lkpi_vif *lvif; 2684 struct ieee80211_vif *vif; 2685 struct ieee80211_scan_state *ss; 2686 struct ieee80211vap *vap; 2687 int error; 2688 bool is_hw_scan; 2689 2690 lhw = ic->ic_softc; 2691 LKPI_80211_LHW_SCAN_LOCK(lhw); 2692 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2693 /* A scan is still running. */ 2694 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2695 return; 2696 } 2697 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2698 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2699 2700 ss = ic->ic_scan; 2701 vap = ss->ss_vap; 2702 if (vap->iv_state != IEEE80211_S_SCAN) { 2703 IMPROVE("We need to be able to scan if not in S_SCAN"); 2704 return; 2705 } 2706 2707 hw = LHW_TO_HW(lhw); 2708 if (!is_hw_scan) { 2709 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2710 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2711 sw_scan: 2712 lvif = VAP_TO_LVIF(vap); 2713 vif = LVIF_TO_VIF(lvif); 2714 2715 if (vap->iv_state == IEEE80211_S_SCAN) 2716 lkpi_hw_conf_idle(hw, false); 2717 2718 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2719 /* net80211::scan_start() handled PS for us. */ 2720 IMPROVE(); 2721 /* XXX Also means it is too late to flush queues? 2722 * need to check iv_sta_ps or overload? */ 2723 /* XXX want to adjust ss end time/ maxdwell? */ 2724 2725 } else { 2726 struct ieee80211_channel *c; 2727 struct ieee80211_scan_request *hw_req; 2728 struct linuxkpi_ieee80211_channel *lc, **cpp; 2729 struct cfg80211_ssid *ssids; 2730 struct cfg80211_scan_6ghz_params *s6gp; 2731 size_t chan_len, nchan, ssids_len, s6ghzlen; 2732 int band, i, ssid_count, common_ie_len; 2733 uint32_t band_mask; 2734 uint8_t *ie, *ieend; 2735 bool running; 2736 2737 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2738 ssids_len = ssid_count * sizeof(*ssids); 2739 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2740 2741 band_mask = 0; 2742 nchan = 0; 2743 for (i = ss->ss_next; i < ss->ss_last; i++) { 2744 nchan++; 2745 band = lkpi_net80211_chan_to_nl80211_band( 2746 ss->ss_chans[ss->ss_next + i]); 2747 band_mask |= (1 << band); 2748 } 2749 2750 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2751 IMPROVE("individual band scans not yet supported, only scanning first band"); 2752 /* In theory net80211 should drive this. */ 2753 /* Probably we need to add local logic for now; 2754 * need to deal with scan_complete 2755 * and cancel_scan and keep local state. 2756 * Also cut the nchan down above. 2757 */ 2758 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 2759 } 2760 2761 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2762 2763 common_ie_len = 0; 2764 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2765 vap->iv_wpa_ie != NULL) 2766 common_ie_len += vap->iv_wpa_ie[1]; 2767 if (vap->iv_appie_probereq != NULL) 2768 common_ie_len += vap->iv_appie_probereq->ie_len; 2769 2770 /* We would love to check this at an earlier stage... */ 2771 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2772 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2773 "wiphy->max_scan_ie_len %d\n", __func__, 2774 common_ie_len, hw->wiphy->max_scan_ie_len); 2775 } 2776 2777 hw_req = malloc(sizeof(*hw_req) + ssids_len + 2778 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2779 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2780 2781 hw_req->req.flags = 0; /* XXX ??? */ 2782 /* hw_req->req.wdev */ 2783 hw_req->req.wiphy = hw->wiphy; 2784 hw_req->req.no_cck = false; /* XXX */ 2785 #if 0 2786 /* This seems to pessimise default scanning behaviour. */ 2787 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2788 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2789 #endif 2790 #ifdef __notyet__ 2791 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2792 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2793 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2794 #endif 2795 eth_broadcast_addr(hw_req->req.bssid); 2796 2797 hw_req->req.n_channels = nchan; 2798 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2799 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2800 for (i = 0; i < nchan; i++) { 2801 *(cpp + i) = 2802 (struct linuxkpi_ieee80211_channel *)(lc + i); 2803 } 2804 for (i = 0; i < nchan; i++) { 2805 c = ss->ss_chans[ss->ss_next + i]; 2806 2807 lc->hw_value = c->ic_ieee; 2808 lc->center_freq = c->ic_freq; /* XXX */ 2809 /* lc->flags */ 2810 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2811 lc->max_power = c->ic_maxpower; 2812 /* lc-> ... */ 2813 lc++; 2814 } 2815 2816 hw_req->req.n_ssids = ssid_count; 2817 if (hw_req->req.n_ssids > 0) { 2818 ssids = (struct cfg80211_ssid *)lc; 2819 hw_req->req.ssids = ssids; 2820 for (i = 0; i < ssid_count; i++) { 2821 ssids->ssid_len = ss->ss_ssid[i].len; 2822 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2823 ss->ss_ssid[i].len); 2824 ssids++; 2825 } 2826 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2827 } else { 2828 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2829 } 2830 2831 /* 6GHz one day. */ 2832 hw_req->req.n_6ghz_params = 0; 2833 hw_req->req.scan_6ghz_params = NULL; 2834 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2835 /* s6gp->... */ 2836 2837 ie = ieend = (uint8_t *)s6gp; 2838 /* Copy per-band IEs, copy common IEs */ 2839 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2840 hw_req->req.ie = ie; 2841 hw_req->req.ie_len = ieend - ie; 2842 2843 lvif = VAP_TO_LVIF(vap); 2844 vif = LVIF_TO_VIF(lvif); 2845 2846 LKPI_80211_LHW_SCAN_LOCK(lhw); 2847 /* Re-check under lock. */ 2848 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2849 if (!running) { 2850 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2851 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2852 2853 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 2854 lhw->hw_req = hw_req; 2855 } 2856 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2857 if (running) { 2858 free(hw_req, M_LKPI80211); 2859 return; 2860 } 2861 2862 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2863 if (error != 0) { 2864 ieee80211_cancel_scan(vap); 2865 2866 /* 2867 * ieee80211_scan_completed must be called in either 2868 * case of error or none. So let the free happen there 2869 * and only there. 2870 * That would be fine in theory but in practice drivers 2871 * behave differently: 2872 * ath10k does not return hw_scan until after scan_complete 2873 * and can then still return an error. 2874 * rtw88 can return 1 or -EBUSY without scan_complete 2875 * iwlwifi can return various errors before scan starts 2876 * ... 2877 * So we cannot rely on that behaviour and have to check 2878 * and balance between both code paths. 2879 */ 2880 LKPI_80211_LHW_SCAN_LOCK(lhw); 2881 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2882 free(lhw->hw_req, M_LKPI80211); 2883 lhw->hw_req = NULL; 2884 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 2885 } 2886 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2887 2888 /* 2889 * XXX-SIGH magic number. 2890 * rtw88 has a magic "return 1" if offloading scan is 2891 * not possible. Fall back to sw scan in that case. 2892 */ 2893 if (error == 1) { 2894 LKPI_80211_LHW_SCAN_LOCK(lhw); 2895 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 2896 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2897 /* 2898 * XXX If we clear this now and later a driver 2899 * thinks it * can do a hw_scan again, we will 2900 * currently not re-enable it? 2901 */ 2902 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2903 ieee80211_start_scan(vap, 2904 IEEE80211_SCAN_ACTIVE | 2905 IEEE80211_SCAN_NOPICK | 2906 IEEE80211_SCAN_ONCE, 2907 IEEE80211_SCAN_FOREVER, 2908 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2909 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2910 vap->iv_des_nssid, vap->iv_des_ssid); 2911 goto sw_scan; 2912 } 2913 2914 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2915 __func__, error); 2916 } 2917 } 2918 } 2919 2920 static void 2921 lkpi_ic_scan_end(struct ieee80211com *ic) 2922 { 2923 struct lkpi_hw *lhw; 2924 bool is_hw_scan; 2925 2926 lhw = ic->ic_softc; 2927 LKPI_80211_LHW_SCAN_LOCK(lhw); 2928 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 2929 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2930 return; 2931 } 2932 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2933 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2934 2935 if (!is_hw_scan) { 2936 struct ieee80211_scan_state *ss; 2937 struct ieee80211vap *vap; 2938 struct ieee80211_hw *hw; 2939 struct lkpi_vif *lvif; 2940 struct ieee80211_vif *vif; 2941 2942 ss = ic->ic_scan; 2943 vap = ss->ss_vap; 2944 hw = LHW_TO_HW(lhw); 2945 lvif = VAP_TO_LVIF(vap); 2946 vif = LVIF_TO_VIF(lvif); 2947 2948 lkpi_80211_mo_sw_scan_complete(hw, vif); 2949 2950 /* Send PS to stop buffering if n80211 does not for us? */ 2951 2952 if (vap->iv_state == IEEE80211_S_SCAN) 2953 lkpi_hw_conf_idle(hw, true); 2954 } 2955 } 2956 2957 static void 2958 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 2959 unsigned long maxdwell) 2960 { 2961 struct lkpi_hw *lhw; 2962 bool is_hw_scan; 2963 2964 lhw = ss->ss_ic->ic_softc; 2965 LKPI_80211_LHW_SCAN_LOCK(lhw); 2966 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2967 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2968 if (!is_hw_scan) 2969 lhw->ic_scan_curchan(ss, maxdwell); 2970 } 2971 2972 static void 2973 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 2974 { 2975 struct lkpi_hw *lhw; 2976 bool is_hw_scan; 2977 2978 lhw = ss->ss_ic->ic_softc; 2979 LKPI_80211_LHW_SCAN_LOCK(lhw); 2980 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2981 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2982 if (!is_hw_scan) 2983 lhw->ic_scan_mindwell(ss); 2984 } 2985 2986 static void 2987 lkpi_ic_set_channel(struct ieee80211com *ic) 2988 { 2989 struct lkpi_hw *lhw; 2990 struct ieee80211_hw *hw; 2991 struct ieee80211_channel *c; 2992 struct linuxkpi_ieee80211_channel *chan; 2993 int error; 2994 bool hw_scan_running; 2995 2996 lhw = ic->ic_softc; 2997 2998 /* If we do not support (*config)() save us the work. */ 2999 if (lhw->ops->config == NULL) 3000 return; 3001 3002 /* If we have a hw_scan running do not switch channels. */ 3003 LKPI_80211_LHW_SCAN_LOCK(lhw); 3004 hw_scan_running = 3005 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3006 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3007 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3008 if (hw_scan_running) 3009 return; 3010 3011 c = ic->ic_curchan; 3012 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3013 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3014 c, lhw->ops->config); 3015 return; 3016 } 3017 3018 chan = lkpi_find_lkpi80211_chan(lhw, c); 3019 if (chan == NULL) { 3020 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3021 c, chan); 3022 return; 3023 } 3024 3025 /* XXX max power for scanning? */ 3026 IMPROVE(); 3027 3028 hw = LHW_TO_HW(lhw); 3029 cfg80211_chandef_create(&hw->conf.chandef, chan, 3030 NL80211_CHAN_NO_HT); 3031 3032 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3033 if (error != 0 && error != EOPNOTSUPP) { 3034 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3035 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3036 /* XXX should we unroll to the previous chandef? */ 3037 IMPROVE(); 3038 } else { 3039 /* Update radiotap channels as well. */ 3040 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3041 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3042 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3043 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3044 } 3045 3046 /* Currently PS is hard coded off! Not sure it belongs here. */ 3047 IMPROVE(); 3048 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3049 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3050 hw->conf.flags &= ~IEEE80211_CONF_PS; 3051 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3052 if (error != 0 && error != EOPNOTSUPP) 3053 ic_printf(ic, "ERROR: %s: config %#0x returned " 3054 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3055 error); 3056 } 3057 } 3058 3059 static struct ieee80211_node * 3060 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3061 const uint8_t mac[IEEE80211_ADDR_LEN]) 3062 { 3063 struct ieee80211com *ic; 3064 struct lkpi_hw *lhw; 3065 struct ieee80211_node *ni; 3066 struct ieee80211_hw *hw; 3067 struct lkpi_sta *lsta; 3068 3069 ic = vap->iv_ic; 3070 lhw = ic->ic_softc; 3071 3072 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3073 if (lhw->ic_node_alloc == NULL) 3074 return (NULL); 3075 3076 ni = lhw->ic_node_alloc(vap, mac); 3077 if (ni == NULL) 3078 return (NULL); 3079 3080 hw = LHW_TO_HW(lhw); 3081 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3082 if (lsta == NULL) { 3083 if (lhw->ic_node_free != NULL) 3084 lhw->ic_node_free(ni); 3085 return (NULL); 3086 } 3087 3088 return (ni); 3089 } 3090 3091 static int 3092 lkpi_ic_node_init(struct ieee80211_node *ni) 3093 { 3094 struct ieee80211com *ic; 3095 struct lkpi_hw *lhw; 3096 struct lkpi_sta *lsta; 3097 int error; 3098 3099 ic = ni->ni_ic; 3100 lhw = ic->ic_softc; 3101 3102 if (lhw->ic_node_init != NULL) { 3103 error = lhw->ic_node_init(ni); 3104 if (error != 0) 3105 return (error); 3106 } 3107 3108 lsta = ni->ni_drv_data; 3109 3110 /* Now take the reference before linking it to the table. */ 3111 lsta->ni = ieee80211_ref_node(ni); 3112 3113 /* XXX-BZ Sync other state over. */ 3114 IMPROVE(); 3115 3116 return (0); 3117 } 3118 3119 static void 3120 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3121 { 3122 struct ieee80211com *ic; 3123 struct lkpi_hw *lhw; 3124 3125 ic = ni->ni_ic; 3126 lhw = ic->ic_softc; 3127 3128 /* XXX-BZ remove from driver, ... */ 3129 IMPROVE(); 3130 3131 if (lhw->ic_node_cleanup != NULL) 3132 lhw->ic_node_cleanup(ni); 3133 } 3134 3135 static void 3136 lkpi_ic_node_free(struct ieee80211_node *ni) 3137 { 3138 struct ieee80211com *ic; 3139 struct lkpi_hw *lhw; 3140 struct lkpi_sta *lsta; 3141 3142 ic = ni->ni_ic; 3143 lhw = ic->ic_softc; 3144 lsta = ni->ni_drv_data; 3145 if (lsta == NULL) 3146 goto out; 3147 3148 /* XXX-BZ free resources, ... */ 3149 IMPROVE(); 3150 3151 /* Flush mbufq (make sure to release ni refs!). */ 3152 #ifdef __notyet__ 3153 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 3154 __func__, lsta, mbufq_len(&lsta->txq))); 3155 #endif 3156 /* Drain taskq. */ 3157 3158 /* Drain sta->txq[] */ 3159 mtx_destroy(&lsta->txq_mtx); 3160 3161 /* Remove lsta if added_to_drv. */ 3162 3163 /* Remove lsta from vif */ 3164 /* Remove ref from lsta node... */ 3165 /* Free lsta. */ 3166 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 3167 3168 out: 3169 if (lhw->ic_node_free != NULL) 3170 lhw->ic_node_free(ni); 3171 } 3172 3173 static int 3174 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3175 const struct ieee80211_bpf_params *params __unused) 3176 { 3177 struct lkpi_sta *lsta; 3178 3179 lsta = ni->ni_drv_data; 3180 3181 /* Queue the packet and enqueue the task to handle it. */ 3182 LKPI_80211_LSTA_LOCK(lsta); 3183 mbufq_enqueue(&lsta->txq, m); 3184 LKPI_80211_LSTA_UNLOCK(lsta); 3185 3186 #ifdef LINUXKPI_DEBUG_80211 3187 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3188 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3189 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3190 mbufq_len(&lsta->txq)); 3191 #endif 3192 3193 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3194 return (0); 3195 } 3196 3197 static void 3198 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3199 { 3200 struct ieee80211_node *ni; 3201 #ifndef LKPI_80211_HW_CRYPTO 3202 struct ieee80211_frame *wh; 3203 #endif 3204 struct ieee80211_key *k; 3205 struct sk_buff *skb; 3206 struct ieee80211com *ic; 3207 struct lkpi_hw *lhw; 3208 struct ieee80211_hw *hw; 3209 struct lkpi_vif *lvif; 3210 struct ieee80211_vif *vif; 3211 struct ieee80211_channel *c; 3212 struct ieee80211_tx_control control; 3213 struct ieee80211_tx_info *info; 3214 struct ieee80211_sta *sta; 3215 struct ieee80211_hdr *hdr; 3216 void *buf; 3217 uint8_t ac, tid; 3218 3219 M_ASSERTPKTHDR(m); 3220 #ifdef LINUXKPI_DEBUG_80211 3221 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3222 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3223 #endif 3224 3225 ni = lsta->ni; 3226 k = NULL; 3227 #ifndef LKPI_80211_HW_CRYPTO 3228 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3229 wh = mtod(m, struct ieee80211_frame *); 3230 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3231 /* Retrieve key for TX && do software encryption. */ 3232 k = ieee80211_crypto_encap(ni, m); 3233 if (k == NULL) { 3234 ieee80211_free_node(ni); 3235 m_freem(m); 3236 return; 3237 } 3238 } 3239 #endif 3240 3241 ic = ni->ni_ic; 3242 lhw = ic->ic_softc; 3243 hw = LHW_TO_HW(lhw); 3244 c = ni->ni_chan; 3245 3246 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3247 struct lkpi_radiotap_tx_hdr *rtap; 3248 3249 rtap = &lhw->rtap_tx; 3250 rtap->wt_flags = 0; 3251 if (k != NULL) 3252 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3253 if (m->m_flags & M_FRAG) 3254 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3255 IMPROVE(); 3256 rtap->wt_rate = 0; 3257 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3258 rtap->wt_chan_freq = htole16(c->ic_freq); 3259 rtap->wt_chan_flags = htole16(c->ic_flags); 3260 } 3261 3262 ieee80211_radiotap_tx(ni->ni_vap, m); 3263 } 3264 3265 /* 3266 * net80211 should handle hw->extra_tx_headroom. 3267 * Though for as long as we are copying we don't mind. 3268 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3269 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3270 */ 3271 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3272 if (skb == NULL) { 3273 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3274 ieee80211_free_node(ni); 3275 m_freem(m); 3276 return; 3277 } 3278 skb_reserve(skb, hw->extra_tx_headroom); 3279 3280 /* XXX-BZ we need a SKB version understanding mbuf. */ 3281 /* Save the mbuf for ieee80211_tx_complete(). */ 3282 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3283 skb->m = m; 3284 #if 0 3285 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3286 #else 3287 buf = skb_put(skb, m->m_pkthdr.len); 3288 m_copydata(m, 0, m->m_pkthdr.len, buf); 3289 #endif 3290 /* Save the ni. */ 3291 m->m_pkthdr.PH_loc.ptr = ni; 3292 3293 lvif = VAP_TO_LVIF(ni->ni_vap); 3294 vif = LVIF_TO_VIF(lvif); 3295 3296 hdr = (void *)skb->data; 3297 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3298 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3299 skb->priority = 0; 3300 ac = IEEE80211_AC_BE; 3301 } else { 3302 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3303 ac = ieee80211e_up_to_ac[tid & 7]; 3304 } 3305 skb_set_queue_mapping(skb, ac); 3306 3307 info = IEEE80211_SKB_CB(skb); 3308 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3309 /* Slight delay; probably only happens on scanning so fine? */ 3310 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3311 c = ic->ic_curchan; 3312 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3313 info->hw_queue = vif->hw_queue[ac]; 3314 if (m->m_flags & M_EAPOL) 3315 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3316 info->control.vif = vif; 3317 /* XXX-BZ info->control.rates */ 3318 3319 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3320 if (lsta != NULL) { 3321 sta = LSTA_TO_STA(lsta); 3322 #ifdef LKPI_80211_HW_CRYPTO 3323 info->control.hw_key = lsta->kc; 3324 #endif 3325 } else { 3326 sta = NULL; 3327 } 3328 3329 IMPROVE(); 3330 3331 if (sta != NULL) { 3332 struct lkpi_txq *ltxq; 3333 3334 ltxq = NULL; 3335 if (!ieee80211_is_data_present(hdr->frame_control)) { 3336 if (vif->type == NL80211_IFTYPE_STATION && 3337 lsta->added_to_drv && 3338 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3339 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3340 } else if (lsta->added_to_drv && 3341 sta->txq[skb->priority] != NULL) { 3342 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3343 } 3344 if (ltxq == NULL) 3345 goto ops_tx; 3346 3347 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3348 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3349 3350 skb_queue_tail(<xq->skbq, skb); 3351 #ifdef LINUXKPI_DEBUG_80211 3352 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3353 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3354 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3355 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3356 __func__, __LINE__, 3357 curthread->td_tid, (unsigned int)ticks, 3358 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3359 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3360 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3361 #endif 3362 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3363 return; 3364 } 3365 3366 ops_tx: 3367 #ifdef LINUXKPI_DEBUG_80211 3368 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3369 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3370 "TX ac %d prio %u qmap %u\n", 3371 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3372 skb, ac, skb->priority, skb->qmap); 3373 #endif 3374 memset(&control, 0, sizeof(control)); 3375 control.sta = sta; 3376 3377 lkpi_80211_mo_tx(hw, &control, skb); 3378 return; 3379 } 3380 3381 static void 3382 lkpi_80211_txq_task(void *ctx, int pending) 3383 { 3384 struct lkpi_sta *lsta; 3385 struct mbufq mq; 3386 struct mbuf *m; 3387 3388 lsta = ctx; 3389 3390 #ifdef LINUXKPI_DEBUG_80211 3391 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3392 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3393 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3394 pending, mbufq_len(&lsta->txq)); 3395 #endif 3396 3397 mbufq_init(&mq, IFQ_MAXLEN); 3398 3399 LKPI_80211_LSTA_LOCK(lsta); 3400 mbufq_concat(&mq, &lsta->txq); 3401 LKPI_80211_LSTA_UNLOCK(lsta); 3402 3403 m = mbufq_dequeue(&mq); 3404 while (m != NULL) { 3405 lkpi_80211_txq_tx_one(lsta, m); 3406 m = mbufq_dequeue(&mq); 3407 } 3408 } 3409 3410 static int 3411 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3412 { 3413 3414 /* XXX TODO */ 3415 IMPROVE(); 3416 3417 /* Quick and dirty cheating hack. */ 3418 struct ieee80211_node *ni; 3419 3420 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3421 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3422 } 3423 3424 static void 3425 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3426 int *n, struct ieee80211_channel *c) 3427 { 3428 struct lkpi_hw *lhw; 3429 struct ieee80211_hw *hw; 3430 struct linuxkpi_ieee80211_channel *channels; 3431 uint8_t bands[IEEE80211_MODE_BYTES]; 3432 int chan_flags, error, i, nchans; 3433 3434 /* Channels */ 3435 lhw = ic->ic_softc; 3436 hw = LHW_TO_HW(lhw); 3437 3438 /* NL80211_BAND_2GHZ */ 3439 nchans = 0; 3440 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3441 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3442 if (nchans > 0) { 3443 memset(bands, 0, sizeof(bands)); 3444 chan_flags = 0; 3445 setbit(bands, IEEE80211_MODE_11B); 3446 /* XXX-BZ unclear how to check for 11g. */ 3447 setbit(bands, IEEE80211_MODE_11G); 3448 #ifdef __notyet__ 3449 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3450 setbit(bands, IEEE80211_MODE_11NG); 3451 chan_flags |= NET80211_CBW_FLAG_HT40; 3452 } 3453 #endif 3454 3455 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3456 for (i = 0; i < nchans && *n < maxchan; i++) { 3457 uint32_t nflags = 0; 3458 int cflags = chan_flags; 3459 3460 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3461 ic_printf(ic, "%s: Skipping disabled chan " 3462 "[%u/%u/%#x]\n", __func__, 3463 channels[i].hw_value, 3464 channels[i].center_freq, channels[i].flags); 3465 continue; 3466 } 3467 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3468 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3469 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3470 nflags |= IEEE80211_CHAN_DFS; 3471 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3472 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3473 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3474 cflags &= ~NET80211_CBW_FLAG_VHT80; 3475 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3476 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3477 cflags &= ~NET80211_CBW_FLAG_HT40; 3478 3479 error = ieee80211_add_channel_cbw(c, maxchan, n, 3480 channels[i].hw_value, channels[i].center_freq, 3481 channels[i].max_power, 3482 nflags, bands, chan_flags); 3483 /* net80211::ENOBUFS: *n >= maxchans */ 3484 if (error != 0 && error != ENOBUFS) 3485 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3486 "returned error %d\n", 3487 __func__, channels[i].hw_value, 3488 channels[i].center_freq, channels[i].flags, 3489 nflags, chan_flags, cflags, error); 3490 if (error != 0) 3491 break; 3492 } 3493 } 3494 3495 /* NL80211_BAND_5GHZ */ 3496 nchans = 0; 3497 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3498 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3499 if (nchans > 0) { 3500 memset(bands, 0, sizeof(bands)); 3501 chan_flags = 0; 3502 setbit(bands, IEEE80211_MODE_11A); 3503 #ifdef __not_yet__ 3504 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3505 setbit(bands, IEEE80211_MODE_11NA); 3506 chan_flags |= NET80211_CBW_FLAG_HT40; 3507 } 3508 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3509 3510 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3511 ic->ic_vhtcaps = 3512 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3513 3514 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3515 chan_flags |= NET80211_CBW_FLAG_VHT80; 3516 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3517 ic->ic_vhtcaps)) 3518 chan_flags |= NET80211_CBW_FLAG_VHT160; 3519 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3520 ic->ic_vhtcaps)) 3521 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3522 } 3523 #endif 3524 3525 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3526 for (i = 0; i < nchans && *n < maxchan; i++) { 3527 uint32_t nflags = 0; 3528 int cflags = chan_flags; 3529 3530 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3531 ic_printf(ic, "%s: Skipping disabled chan " 3532 "[%u/%u/%#x]\n", __func__, 3533 channels[i].hw_value, 3534 channels[i].center_freq, channels[i].flags); 3535 continue; 3536 } 3537 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3538 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3539 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3540 nflags |= IEEE80211_CHAN_DFS; 3541 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3542 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3543 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3544 cflags &= ~NET80211_CBW_FLAG_VHT80; 3545 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3546 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3547 cflags &= ~NET80211_CBW_FLAG_HT40; 3548 3549 error = ieee80211_add_channel_cbw(c, maxchan, n, 3550 channels[i].hw_value, channels[i].center_freq, 3551 channels[i].max_power, 3552 nflags, bands, chan_flags); 3553 /* net80211::ENOBUFS: *n >= maxchans */ 3554 if (error != 0 && error != ENOBUFS) 3555 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3556 "returned error %d\n", 3557 __func__, channels[i].hw_value, 3558 channels[i].center_freq, channels[i].flags, 3559 nflags, chan_flags, cflags, error); 3560 if (error != 0) 3561 break; 3562 } 3563 } 3564 } 3565 3566 static void * 3567 lkpi_ieee80211_ifalloc(void) 3568 { 3569 struct ieee80211com *ic; 3570 3571 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3572 if (ic == NULL) 3573 return (NULL); 3574 3575 /* Setting these happens later when we have device information. */ 3576 ic->ic_softc = NULL; 3577 ic->ic_name = "linuxkpi"; 3578 3579 return (ic); 3580 } 3581 3582 struct ieee80211_hw * 3583 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3584 { 3585 struct ieee80211_hw *hw; 3586 struct lkpi_hw *lhw; 3587 struct wiphy *wiphy; 3588 int ac; 3589 3590 /* Get us and the driver data also allocated. */ 3591 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3592 if (wiphy == NULL) 3593 return (NULL); 3594 3595 lhw = wiphy_priv(wiphy); 3596 lhw->ops = ops; 3597 3598 LKPI_80211_LHW_LOCK_INIT(lhw); 3599 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 3600 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3601 TAILQ_INIT(&lhw->lvif_head); 3602 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3603 lhw->txq_generation[ac] = 1; 3604 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 3605 } 3606 3607 /* 3608 * XXX-BZ TODO make sure there is a "_null" function to all ops 3609 * not initialized. 3610 */ 3611 hw = LHW_TO_HW(lhw); 3612 hw->wiphy = wiphy; 3613 hw->conf.flags |= IEEE80211_CONF_IDLE; 3614 hw->priv = (void *)(lhw + 1); 3615 3616 /* BSD Specific. */ 3617 lhw->ic = lkpi_ieee80211_ifalloc(); 3618 if (lhw->ic == NULL) { 3619 ieee80211_free_hw(hw); 3620 return (NULL); 3621 } 3622 3623 IMPROVE(); 3624 3625 return (hw); 3626 } 3627 3628 void 3629 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3630 { 3631 struct lkpi_hw *lhw; 3632 3633 lhw = HW_TO_LHW(hw); 3634 free(lhw->ic, M_LKPI80211); 3635 lhw->ic = NULL; 3636 3637 /* Cleanup more of lhw here or in wiphy_free()? */ 3638 sx_destroy(&lhw->lvif_sx); 3639 LKPI_80211_LHW_LOCK_DESTROY(lhw); 3640 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 3641 IMPROVE(); 3642 } 3643 3644 void 3645 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3646 { 3647 struct lkpi_hw *lhw; 3648 struct ieee80211com *ic; 3649 3650 lhw = HW_TO_LHW(hw); 3651 ic = lhw->ic; 3652 3653 /* Now set a proper name before ieee80211_ifattach(). */ 3654 ic->ic_softc = lhw; 3655 ic->ic_name = name; 3656 3657 /* XXX-BZ do we also need to set wiphy name? */ 3658 } 3659 3660 struct ieee80211_hw * 3661 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3662 { 3663 struct lkpi_hw *lhw; 3664 3665 lhw = wiphy_priv(wiphy); 3666 return (LHW_TO_HW(lhw)); 3667 } 3668 3669 static void 3670 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3671 { 3672 struct ieee80211com *ic; 3673 3674 ic = lhw->ic; 3675 ieee80211_radiotap_attach(ic, 3676 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3677 LKPI_RTAP_TX_FLAGS_PRESENT, 3678 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3679 LKPI_RTAP_RX_FLAGS_PRESENT); 3680 } 3681 3682 int 3683 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3684 { 3685 struct ieee80211com *ic; 3686 struct lkpi_hw *lhw; 3687 int band, i; 3688 3689 lhw = HW_TO_LHW(hw); 3690 ic = lhw->ic; 3691 3692 /* We do it this late as wiphy->dev should be set for the name. */ 3693 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3694 if (lhw->workq == NULL) 3695 return (-EAGAIN); 3696 3697 /* XXX-BZ figure this out how they count his... */ 3698 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3699 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3700 hw->wiphy->perm_addr); 3701 } else if (hw->wiphy->n_addresses > 0) { 3702 /* We take the first one. */ 3703 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3704 hw->wiphy->addresses[0].addr); 3705 } else { 3706 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3707 } 3708 3709 #ifdef __not_yet__ 3710 /* See comment in lkpi_80211_txq_tx_one(). */ 3711 ic->ic_headroom = hw->extra_tx_headroom; 3712 #endif 3713 3714 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3715 ic->ic_opmode = IEEE80211_M_STA; 3716 3717 /* Set device capabilities. */ 3718 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3719 ic->ic_caps = 3720 IEEE80211_C_STA | 3721 IEEE80211_C_MONITOR | 3722 IEEE80211_C_WPA | /* WPA/RSN */ 3723 #ifdef LKPI_80211_WME 3724 IEEE80211_C_WME | 3725 #endif 3726 #if 0 3727 IEEE80211_C_PMGT | 3728 #endif 3729 IEEE80211_C_SHSLOT | /* short slot time supported */ 3730 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3731 ; 3732 #if 0 3733 /* Scanning is a different kind of beast to re-work. */ 3734 ic->ic_caps |= IEEE80211_C_BGSCAN; 3735 #endif 3736 if (lhw->ops->hw_scan) { 3737 /* 3738 * Advertise full-offload scanning. 3739 * 3740 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3741 * we essentially disable hw_scan for all drivers not setting 3742 * the flag. 3743 */ 3744 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3745 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 3746 } 3747 3748 #ifdef __notyet__ 3749 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3750 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3751 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3752 | IEEE80211_HTCAP_MAXAMSDU_3839 3753 /* max A-MSDU length */ 3754 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3755 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3756 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3757 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3758 #endif 3759 3760 /* 3761 * The wiphy variables report bitmasks of avail antennas. 3762 * (*get_antenna) get the current bitmask sets which can be 3763 * altered by (*set_antenna) for some drivers. 3764 * XXX-BZ will the count alone do us much good long-term in net80211? 3765 */ 3766 if (hw->wiphy->available_antennas_rx || 3767 hw->wiphy->available_antennas_tx) { 3768 uint32_t rxs, txs; 3769 3770 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 3771 ic->ic_rxstream = bitcount32(rxs); 3772 ic->ic_txstream = bitcount32(txs); 3773 } 3774 } 3775 3776 ic->ic_cryptocaps = 0; 3777 #ifdef LKPI_80211_HW_CRYPTO 3778 if (hw->wiphy->n_cipher_suites > 0) { 3779 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3780 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3781 hw->wiphy->cipher_suites[i]); 3782 } 3783 #endif 3784 3785 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3786 ic->ic_channels); 3787 3788 ieee80211_ifattach(ic); 3789 3790 ic->ic_update_mcast = lkpi_ic_update_mcast; 3791 ic->ic_update_promisc = lkpi_ic_update_promisc; 3792 ic->ic_update_chw = lkpi_ic_update_chw; 3793 ic->ic_parent = lkpi_ic_parent; 3794 ic->ic_scan_start = lkpi_ic_scan_start; 3795 ic->ic_scan_end = lkpi_ic_scan_end; 3796 ic->ic_set_channel = lkpi_ic_set_channel; 3797 ic->ic_transmit = lkpi_ic_transmit; 3798 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3799 ic->ic_vap_create = lkpi_ic_vap_create; 3800 ic->ic_vap_delete = lkpi_ic_vap_delete; 3801 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3802 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3803 3804 lhw->ic_scan_curchan = ic->ic_scan_curchan; 3805 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 3806 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 3807 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 3808 3809 lhw->ic_node_alloc = ic->ic_node_alloc; 3810 ic->ic_node_alloc = lkpi_ic_node_alloc; 3811 lhw->ic_node_init = ic->ic_node_init; 3812 ic->ic_node_init = lkpi_ic_node_init; 3813 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3814 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3815 lhw->ic_node_free = ic->ic_node_free; 3816 ic->ic_node_free = lkpi_ic_node_free; 3817 3818 lkpi_radiotap_attach(lhw); 3819 3820 /* 3821 * Assign the first possible channel for now; seems Realtek drivers 3822 * expect one. 3823 * Also remember the amount of bands we support and the most rates 3824 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3825 */ 3826 lhw->supbands = lhw->max_rates = 0; 3827 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3828 struct ieee80211_supported_band *supband; 3829 struct linuxkpi_ieee80211_channel *channels; 3830 3831 supband = hw->wiphy->bands[band]; 3832 if (supband == NULL || supband->n_channels == 0) 3833 continue; 3834 3835 lhw->supbands++; 3836 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3837 3838 /* If we have a channel, we need to keep counting supbands. */ 3839 if (hw->conf.chandef.chan != NULL) 3840 continue; 3841 3842 channels = supband->channels; 3843 for (i = 0; i < supband->n_channels; i++) { 3844 3845 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3846 continue; 3847 3848 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3849 NL80211_CHAN_NO_HT); 3850 break; 3851 } 3852 } 3853 3854 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3855 3856 /* Make sure we do not support more than net80211 is willing to take. */ 3857 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3858 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3859 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3860 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3861 } 3862 3863 /* 3864 * The maximum supported bitrates on any band + size for 3865 * DSSS Parameter Set give our per-band IE size. 3866 * XXX-BZ FIXME add HT VHT ... later 3867 * SSID is the responsibility of the driver and goes on the side. 3868 * The user specified bits coming from the vap go into the 3869 * "common ies" fields. 3870 */ 3871 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3872 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3873 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3874 /* 3875 * net80211 does not seem to support the DSSS Parameter Set but some of 3876 * the drivers insert it so calculate the extra fixed space in. 3877 */ 3878 lhw->scan_ie_len += 2 + 1; 3879 3880 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3881 if (hw->wiphy->max_scan_ie_len > 0) 3882 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3883 3884 if (bootverbose) 3885 ieee80211_announce(ic); 3886 3887 return (0); 3888 } 3889 3890 void 3891 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3892 { 3893 struct lkpi_hw *lhw; 3894 struct ieee80211com *ic; 3895 3896 lhw = HW_TO_LHW(hw); 3897 ic = lhw->ic; 3898 ieee80211_ifdetach(ic); 3899 } 3900 3901 void 3902 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3903 enum ieee80211_iface_iter flags, 3904 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3905 void *arg) 3906 { 3907 struct lkpi_hw *lhw; 3908 struct lkpi_vif *lvif; 3909 struct ieee80211_vif *vif; 3910 bool active, atomic, nin_drv; 3911 3912 lhw = HW_TO_LHW(hw); 3913 3914 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3915 IEEE80211_IFACE_ITER_RESUME_ALL| 3916 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3917 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3918 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3919 __func__, flags); 3920 } 3921 3922 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 3923 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3924 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3925 3926 if (atomic) 3927 LKPI_80211_LHW_LVIF_LOCK(lhw); 3928 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3929 struct ieee80211vap *vap; 3930 3931 vif = LVIF_TO_VIF(lvif); 3932 3933 /* 3934 * If we want "active" interfaces, we need to distinguish on 3935 * whether the driver knows about them or not to be able to 3936 * handle the "resume" case correctly. Skip the ones the 3937 * driver does not know about. 3938 */ 3939 if (active && !lvif->added_to_drv && 3940 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3941 continue; 3942 3943 /* 3944 * If we shall skip interfaces not added to the driver do so 3945 * if we haven't yet. 3946 */ 3947 if (nin_drv && !lvif->added_to_drv) 3948 continue; 3949 3950 /* 3951 * Run the iterator function if we are either not asking 3952 * asking for active only or if the VAP is "running". 3953 */ 3954 /* XXX-BZ probably should have state in the lvif as well. */ 3955 vap = LVIF_TO_VAP(lvif); 3956 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3957 iterfunc(arg, vif->addr, vif); 3958 } 3959 if (atomic) 3960 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3961 } 3962 3963 void 3964 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3965 struct ieee80211_vif *vif, 3966 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3967 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3968 void *arg) 3969 { 3970 3971 UNIMPLEMENTED; 3972 } 3973 3974 void 3975 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3976 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3977 void *), 3978 void *arg) 3979 { 3980 struct lkpi_hw *lhw; 3981 struct lkpi_vif *lvif; 3982 struct ieee80211_vif *vif; 3983 struct lkpi_chanctx *lchanctx; 3984 3985 KASSERT(hw != NULL && iterfunc != NULL, 3986 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3987 3988 lhw = HW_TO_LHW(hw); 3989 3990 IMPROVE("lchanctx should be its own list somewhere"); 3991 3992 LKPI_80211_LHW_LVIF_LOCK(lhw); 3993 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3994 3995 vif = LVIF_TO_VIF(lvif); 3996 if (vif->chanctx_conf == NULL) 3997 continue; 3998 3999 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 4000 if (!lchanctx->added_to_drv) 4001 continue; 4002 4003 iterfunc(hw, &lchanctx->conf, arg); 4004 } 4005 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4006 } 4007 4008 void 4009 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4010 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4011 { 4012 struct lkpi_hw *lhw; 4013 struct lkpi_vif *lvif; 4014 struct lkpi_sta *lsta; 4015 struct ieee80211_sta *sta; 4016 4017 KASSERT(hw != NULL && iterfunc != NULL, 4018 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4019 4020 lhw = HW_TO_LHW(hw); 4021 4022 LKPI_80211_LHW_LVIF_LOCK(lhw); 4023 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4024 4025 LKPI_80211_LVIF_LOCK(lvif); 4026 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4027 if (!lsta->added_to_drv) 4028 continue; 4029 sta = LSTA_TO_STA(lsta); 4030 iterfunc(arg, sta); 4031 } 4032 LKPI_80211_LVIF_UNLOCK(lvif); 4033 } 4034 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4035 } 4036 4037 struct linuxkpi_ieee80211_regdomain * 4038 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4039 { 4040 struct linuxkpi_ieee80211_regdomain *regd; 4041 4042 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4043 GFP_KERNEL); 4044 return (regd); 4045 } 4046 4047 int 4048 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4049 struct linuxkpi_ieee80211_regdomain *regd) 4050 { 4051 struct lkpi_hw *lhw; 4052 struct ieee80211com *ic; 4053 struct ieee80211_regdomain *rd; 4054 4055 lhw = wiphy_priv(wiphy); 4056 ic = lhw->ic; 4057 4058 rd = &ic->ic_regdomain; 4059 if (rd->isocc[0] == '\0') { 4060 rd->isocc[0] = regd->alpha2[0]; 4061 rd->isocc[1] = regd->alpha2[1]; 4062 } 4063 4064 TODO(); 4065 /* XXX-BZ finish the rest. */ 4066 4067 return (0); 4068 } 4069 4070 void 4071 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4072 struct cfg80211_scan_info *info) 4073 { 4074 struct lkpi_hw *lhw; 4075 struct ieee80211com *ic; 4076 struct ieee80211_scan_state *ss; 4077 4078 lhw = wiphy_priv(hw->wiphy); 4079 ic = lhw->ic; 4080 ss = ic->ic_scan; 4081 4082 ieee80211_scan_done(ss->ss_vap); 4083 4084 LKPI_80211_LHW_SCAN_LOCK(lhw); 4085 free(lhw->hw_req, M_LKPI80211); 4086 lhw->hw_req = NULL; 4087 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4088 wakeup(lhw); 4089 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4090 4091 return; 4092 } 4093 4094 /* For %list see comment towards the end of the function. */ 4095 void 4096 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 4097 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 4098 struct list_head *list __unused) 4099 { 4100 struct epoch_tracker et; 4101 struct lkpi_hw *lhw; 4102 struct ieee80211com *ic; 4103 struct mbuf *m; 4104 struct skb_shared_info *shinfo; 4105 struct ieee80211_rx_status *rx_status; 4106 struct ieee80211_rx_stats rx_stats; 4107 struct ieee80211_node *ni; 4108 struct ieee80211vap *vap; 4109 struct ieee80211_hdr *hdr; 4110 struct lkpi_sta *lsta; 4111 int i, offset, ok; 4112 int8_t rssi; 4113 bool is_beacon; 4114 4115 if (skb->len < 2) { 4116 /* Need 80211 stats here. */ 4117 IMPROVE(); 4118 goto err; 4119 } 4120 4121 /* 4122 * For now do the data copy; we can later improve things. Might even 4123 * have an mbuf backing the skb data then? 4124 */ 4125 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 4126 if (m == NULL) 4127 goto err; 4128 m_copyback(m, 0, skb->tail - skb->data, skb->data); 4129 4130 shinfo = skb_shinfo(skb); 4131 offset = m->m_len; 4132 for (i = 0; i < shinfo->nr_frags; i++) { 4133 m_copyback(m, offset, shinfo->frags[i].size, 4134 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 4135 shinfo->frags[i].offset); 4136 offset += shinfo->frags[i].size; 4137 } 4138 4139 rx_status = IEEE80211_SKB_RXCB(skb); 4140 4141 hdr = (void *)skb->data; 4142 is_beacon = ieee80211_is_beacon(hdr->frame_control); 4143 4144 #ifdef LINUXKPI_DEBUG_80211 4145 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 4146 goto no_trace_beacons; 4147 4148 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4149 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 4150 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 4151 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4152 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4153 shinfo, shinfo->nr_frags, 4154 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4155 4156 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4157 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4158 4159 /* Implement a dump_rxcb() !!! */ 4160 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4161 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4162 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4163 __func__, 4164 (uintmax_t)rx_status->boottime_ns, 4165 (uintmax_t)rx_status->mactime, 4166 rx_status->device_timestamp, 4167 rx_status->flag, 4168 rx_status->freq, 4169 rx_status->bw, 4170 rx_status->encoding, 4171 rx_status->ampdu_reference, 4172 rx_status->band, 4173 rx_status->chains, 4174 rx_status->chain_signal[0], 4175 rx_status->chain_signal[1], 4176 rx_status->chain_signal[2], 4177 rx_status->chain_signal[3], 4178 rx_status->signal, 4179 rx_status->enc_flags, 4180 rx_status->he_dcm, 4181 rx_status->he_gi, 4182 rx_status->he_ru, 4183 rx_status->zero_length_psdu_type, 4184 rx_status->nss, 4185 rx_status->rate_idx); 4186 no_trace_beacons: 4187 #endif 4188 4189 memset(&rx_stats, 0, sizeof(rx_stats)); 4190 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 4191 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 4192 rx_stats.c_nf = -96; 4193 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 4194 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 4195 rssi = rx_status->signal; 4196 else 4197 rssi = rx_stats.c_nf; 4198 /* 4199 * net80211 signal strength data are in .5 dBm units relative to 4200 * the current noise floor (see comment in ieee80211_node.h). 4201 */ 4202 rssi -= rx_stats.c_nf; 4203 rx_stats.c_rssi = rssi * 2; 4204 rx_stats.r_flags |= IEEE80211_R_BAND; 4205 rx_stats.c_band = 4206 lkpi_nl80211_band_to_net80211_band(rx_status->band); 4207 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 4208 rx_stats.c_freq = rx_status->freq; 4209 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 4210 4211 /* XXX (*sta_statistics)() to get to some of that? */ 4212 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 4213 4214 lhw = HW_TO_LHW(hw); 4215 ic = lhw->ic; 4216 4217 ok = ieee80211_add_rx_params(m, &rx_stats); 4218 if (ok == 0) { 4219 m_freem(m); 4220 counter_u64_add(ic->ic_ierrors, 1); 4221 goto err; 4222 } 4223 4224 if (sta != NULL) { 4225 lsta = STA_TO_LSTA(sta); 4226 ni = ieee80211_ref_node(lsta->ni); 4227 } else { 4228 struct ieee80211_frame_min *wh; 4229 4230 wh = mtod(m, struct ieee80211_frame_min *); 4231 ni = ieee80211_find_rxnode(ic, wh); 4232 if (ni != NULL) 4233 lsta = ni->ni_drv_data; 4234 } 4235 4236 if (ni != NULL) 4237 vap = ni->ni_vap; 4238 else 4239 /* 4240 * XXX-BZ can we improve this by looking at the frame hdr 4241 * or other meta-data passed up? 4242 */ 4243 vap = TAILQ_FIRST(&ic->ic_vaps); 4244 4245 #ifdef LINUXKPI_DEBUG_80211 4246 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4247 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 4248 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 4249 ni, vap, is_beacon ? " beacon" : ""); 4250 #endif 4251 4252 if (ni != NULL && vap != NULL && is_beacon && 4253 rx_status->device_timestamp > 0 && 4254 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 4255 struct lkpi_vif *lvif; 4256 struct ieee80211_vif *vif; 4257 struct ieee80211_frame *wh; 4258 4259 wh = mtod(m, struct ieee80211_frame *); 4260 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 4261 goto skip_device_ts; 4262 4263 lvif = VAP_TO_LVIF(vap); 4264 vif = LVIF_TO_VIF(lvif); 4265 4266 IMPROVE("TIMING_BEACON_ONLY?"); 4267 /* mac80211 specific (not net80211) so keep it here. */ 4268 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 4269 /* 4270 * net80211 should take care of the other information (sync_tsf, 4271 * sync_dtim_count) as otherwise we need to parse the beacon. 4272 */ 4273 } 4274 skip_device_ts: 4275 4276 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 4277 ieee80211_radiotap_active_vap(vap)) { 4278 struct lkpi_radiotap_rx_hdr *rtap; 4279 4280 rtap = &lhw->rtap_rx; 4281 rtap->wr_tsft = rx_status->device_timestamp; 4282 rtap->wr_flags = 0; 4283 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 4284 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 4285 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 4286 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 4287 #if 0 /* .. or it does not given we strip it below. */ 4288 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4289 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 4290 #endif 4291 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 4292 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 4293 rtap->wr_rate = 0; 4294 IMPROVE(); 4295 /* XXX TODO status->encoding / rate_index / bw */ 4296 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4297 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4298 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4299 rtap->wr_dbm_antsignal = rssi; 4300 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4301 } 4302 4303 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4304 m_adj(m, -IEEE80211_CRC_LEN); 4305 4306 #if 0 4307 if (list != NULL) { 4308 /* 4309 * Normally this would be queued up and delivered by 4310 * netif_receive_skb_list(), napi_gro_receive(), or the like. 4311 * See mt76::mac80211.c as only current possible consumer. 4312 */ 4313 IMPROVE("we simply pass the packet to net80211 to deal with."); 4314 } 4315 #endif 4316 4317 NET_EPOCH_ENTER(et); 4318 if (ni != NULL) { 4319 ok = ieee80211_input_mimo(ni, m); 4320 ieee80211_free_node(ni); 4321 if (ok < 0) 4322 m_freem(m); 4323 } else { 4324 ok = ieee80211_input_mimo_all(ic, m); 4325 /* mbuf got consumed. */ 4326 } 4327 NET_EPOCH_EXIT(et); 4328 4329 #ifdef LINUXKPI_DEBUG_80211 4330 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4331 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4332 #endif 4333 4334 IMPROVE(); 4335 4336 err: 4337 /* The skb is ours so we can free it :-) */ 4338 kfree_skb(skb); 4339 } 4340 4341 uint8_t 4342 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4343 { 4344 const struct ieee80211_frame *wh; 4345 uint8_t tid; 4346 4347 /* Linux seems to assume this is a QOS-Data-Frame */ 4348 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4349 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4350 hdr->frame_control)); 4351 4352 wh = (const struct ieee80211_frame *)hdr; 4353 tid = ieee80211_gettid(wh); 4354 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4355 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4356 4357 return (tid); 4358 } 4359 4360 struct wiphy * 4361 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4362 { 4363 struct lkpi_wiphy *lwiphy; 4364 4365 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4366 if (lwiphy == NULL) 4367 return (NULL); 4368 lwiphy->ops = ops; 4369 4370 /* XXX TODO */ 4371 return (LWIPHY_TO_WIPHY(lwiphy)); 4372 } 4373 4374 void 4375 linuxkpi_wiphy_free(struct wiphy *wiphy) 4376 { 4377 struct lkpi_wiphy *lwiphy; 4378 4379 if (wiphy == NULL) 4380 return; 4381 4382 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4383 kfree(lwiphy); 4384 } 4385 4386 uint32_t 4387 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4388 enum nl80211_band band) 4389 { 4390 4391 switch (band) { 4392 case NL80211_BAND_2GHZ: 4393 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4394 break; 4395 case NL80211_BAND_5GHZ: 4396 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4397 break; 4398 default: 4399 /* XXX abort, retry, error, panic? */ 4400 break; 4401 } 4402 4403 return (0); 4404 } 4405 4406 uint32_t 4407 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4408 { 4409 4410 return (ieee80211_mhz2ieee(freq, 0)); 4411 } 4412 4413 static struct lkpi_sta * 4414 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4415 { 4416 struct lkpi_sta *lsta, *temp; 4417 4418 LKPI_80211_LVIF_LOCK(lvif); 4419 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4420 if (lsta->ni == ni) { 4421 LKPI_80211_LVIF_UNLOCK(lvif); 4422 return (lsta); 4423 } 4424 } 4425 LKPI_80211_LVIF_UNLOCK(lvif); 4426 4427 return (NULL); 4428 } 4429 4430 struct ieee80211_sta * 4431 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4432 { 4433 struct lkpi_vif *lvif; 4434 struct lkpi_sta *lsta, *temp; 4435 struct ieee80211_sta *sta; 4436 4437 lvif = VIF_TO_LVIF(vif); 4438 4439 LKPI_80211_LVIF_LOCK(lvif); 4440 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4441 sta = LSTA_TO_STA(lsta); 4442 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4443 LKPI_80211_LVIF_UNLOCK(lvif); 4444 return (sta); 4445 } 4446 } 4447 LKPI_80211_LVIF_UNLOCK(lvif); 4448 return (NULL); 4449 } 4450 4451 struct ieee80211_sta * 4452 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4453 const uint8_t *addr, const uint8_t *ourvifaddr) 4454 { 4455 struct lkpi_hw *lhw; 4456 struct lkpi_vif *lvif; 4457 struct lkpi_sta *lsta; 4458 struct ieee80211_vif *vif; 4459 struct ieee80211_sta *sta; 4460 4461 lhw = wiphy_priv(hw->wiphy); 4462 sta = NULL; 4463 4464 LKPI_80211_LHW_LVIF_LOCK(lhw); 4465 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4466 4467 /* XXX-BZ check our address from the vif. */ 4468 4469 vif = LVIF_TO_VIF(lvif); 4470 if (ourvifaddr != NULL && 4471 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4472 continue; 4473 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4474 if (sta != NULL) 4475 break; 4476 } 4477 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4478 4479 if (sta != NULL) { 4480 lsta = STA_TO_LSTA(sta); 4481 if (!lsta->added_to_drv) 4482 return (NULL); 4483 } 4484 4485 return (sta); 4486 } 4487 4488 struct sk_buff * 4489 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4490 struct ieee80211_txq *txq) 4491 { 4492 struct lkpi_txq *ltxq; 4493 struct lkpi_vif *lvif; 4494 struct sk_buff *skb; 4495 4496 skb = NULL; 4497 ltxq = TXQ_TO_LTXQ(txq); 4498 ltxq->seen_dequeue = true; 4499 4500 if (ltxq->stopped) 4501 goto stopped; 4502 4503 lvif = VIF_TO_LVIF(ltxq->txq.vif); 4504 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 4505 ltxq->stopped = true; 4506 goto stopped; 4507 } 4508 4509 skb = skb_dequeue(<xq->skbq); 4510 4511 stopped: 4512 return (skb); 4513 } 4514 4515 void 4516 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4517 unsigned long *frame_cnt, unsigned long *byte_cnt) 4518 { 4519 struct lkpi_txq *ltxq; 4520 struct sk_buff *skb; 4521 unsigned long fc, bc; 4522 4523 ltxq = TXQ_TO_LTXQ(txq); 4524 4525 fc = bc = 0; 4526 skb_queue_walk(<xq->skbq, skb) { 4527 fc++; 4528 bc += skb->len; 4529 } 4530 if (frame_cnt) 4531 *frame_cnt = fc; 4532 if (byte_cnt) 4533 *byte_cnt = bc; 4534 4535 /* Validate that this is doing the correct thing. */ 4536 /* Should we keep track on en/dequeue? */ 4537 IMPROVE(); 4538 } 4539 4540 /* 4541 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4542 * The latter tries to derive the success status from the info flags 4543 * passed back from the driver. rawx_mit() saves the ni on the m and the 4544 * m on the skb for us to be able to give feedback to net80211. 4545 */ 4546 static void 4547 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4548 int status) 4549 { 4550 struct ieee80211_node *ni; 4551 struct mbuf *m; 4552 4553 m = skb->m; 4554 skb->m = NULL; 4555 4556 if (m != NULL) { 4557 ni = m->m_pkthdr.PH_loc.ptr; 4558 /* Status: 0 is ok, != 0 is error. */ 4559 ieee80211_tx_complete(ni, m, status); 4560 /* ni & mbuf were consumed. */ 4561 } 4562 } 4563 4564 void 4565 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4566 int status) 4567 { 4568 4569 _lkpi_ieee80211_free_txskb(hw, skb, status); 4570 kfree_skb(skb); 4571 } 4572 4573 void 4574 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 4575 struct ieee80211_tx_status *txstat) 4576 { 4577 struct sk_buff *skb; 4578 struct ieee80211_tx_info *info; 4579 struct ieee80211_ratectl_tx_status txs; 4580 struct ieee80211_node *ni; 4581 int status; 4582 4583 skb = txstat->skb; 4584 if (skb->m != NULL) { 4585 struct mbuf *m; 4586 4587 m = skb->m; 4588 ni = m->m_pkthdr.PH_loc.ptr; 4589 memset(&txs, 0, sizeof(txs)); 4590 } else { 4591 ni = NULL; 4592 } 4593 4594 info = txstat->info; 4595 if (info->flags & IEEE80211_TX_STAT_ACK) { 4596 status = 0; /* No error. */ 4597 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4598 } else { 4599 status = 1; 4600 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4601 } 4602 4603 if (ni != NULL) { 4604 int ridx __unused; 4605 #ifdef LINUXKPI_DEBUG_80211 4606 int old_rate; 4607 4608 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4609 #endif 4610 txs.pktlen = skb->len; 4611 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4612 if (info->status.rates[0].count > 1) { 4613 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4614 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4615 } 4616 #if 0 /* Unused in net80211 currently. */ 4617 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 4618 txs.final_rate = info->status.rates[0].idx; 4619 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4620 #endif 4621 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 4622 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4623 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4624 } 4625 4626 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4627 ieee80211_ratectl_tx_complete(ni, &txs); 4628 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4629 4630 #ifdef LINUXKPI_DEBUG_80211 4631 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4632 printf("TX-RATE: %s: old %d new %d ridx %d, " 4633 "long_retries %d\n", __func__, 4634 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4635 ridx, txs.long_retries); 4636 } 4637 #endif 4638 } 4639 4640 #ifdef LINUXKPI_DEBUG_80211 4641 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4642 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4643 "band %u hw_queue %u tx_time_est %d : " 4644 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4645 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4646 "tx_time %u flags %#x " 4647 "status_driver_data [ %p %p ]\n", 4648 __func__, hw, skb, status, info->flags, 4649 info->band, info->hw_queue, info->tx_time_est, 4650 info->status.rates[0].idx, info->status.rates[0].count, 4651 info->status.rates[0].flags, 4652 info->status.rates[1].idx, info->status.rates[1].count, 4653 info->status.rates[1].flags, 4654 info->status.rates[2].idx, info->status.rates[2].count, 4655 info->status.rates[2].flags, 4656 info->status.rates[3].idx, info->status.rates[3].count, 4657 info->status.rates[3].flags, 4658 info->status.ack_signal, info->status.ampdu_ack_len, 4659 info->status.ampdu_len, info->status.antenna, 4660 info->status.tx_time, info->status.flags, 4661 info->status.status_driver_data[0], 4662 info->status.status_driver_data[1]); 4663 #endif 4664 4665 if (txstat->free_list) { 4666 _lkpi_ieee80211_free_txskb(hw, skb, status); 4667 list_add_tail(&skb->list, txstat->free_list); 4668 } else { 4669 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4670 } 4671 } 4672 4673 void 4674 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4675 { 4676 struct ieee80211_tx_status status; 4677 4678 memset(&status, 0, sizeof(status)); 4679 status.info = IEEE80211_SKB_CB(skb); 4680 status.skb = skb; 4681 /* sta, n_rates, rates, free_list? */ 4682 4683 ieee80211_tx_status_ext(hw, &status); 4684 } 4685 4686 /* 4687 * This is an internal bandaid for the moment for the way we glue 4688 * skbs and mbufs together for TX. Once we have skbs backed by 4689 * mbufs this should go away. 4690 * This is a public function but kept on the private KPI (lkpi_) 4691 * and is not exposed by a header file. 4692 */ 4693 static void 4694 lkpi_ieee80211_free_skb_mbuf(void *p) 4695 { 4696 struct ieee80211_node *ni; 4697 struct mbuf *m; 4698 4699 if (p == NULL) 4700 return; 4701 4702 m = (struct mbuf *)p; 4703 M_ASSERTPKTHDR(m); 4704 4705 ni = m->m_pkthdr.PH_loc.ptr; 4706 m->m_pkthdr.PH_loc.ptr = NULL; 4707 if (ni != NULL) 4708 ieee80211_free_node(ni); 4709 m_freem(m); 4710 } 4711 4712 void 4713 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4714 struct delayed_work *w, int delay) 4715 { 4716 struct lkpi_hw *lhw; 4717 4718 /* Need to make sure hw is in a stable (non-suspended) state. */ 4719 IMPROVE(); 4720 4721 lhw = HW_TO_LHW(hw); 4722 queue_delayed_work(lhw->workq, w, delay); 4723 } 4724 4725 void 4726 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4727 struct work_struct *w) 4728 { 4729 struct lkpi_hw *lhw; 4730 4731 /* Need to make sure hw is in a stable (non-suspended) state. */ 4732 IMPROVE(); 4733 4734 lhw = HW_TO_LHW(hw); 4735 queue_work(lhw->workq, w); 4736 } 4737 4738 struct sk_buff * 4739 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4740 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4741 { 4742 struct sk_buff *skb; 4743 struct ieee80211_frame *wh; 4744 uint8_t *p; 4745 size_t len; 4746 4747 len = sizeof(*wh); 4748 len += 2 + ssid_len; 4749 4750 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4751 if (skb == NULL) 4752 return (NULL); 4753 4754 skb_reserve(skb, hw->extra_tx_headroom); 4755 4756 wh = skb_put_zero(skb, sizeof(*wh)); 4757 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4758 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4759 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4760 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4761 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4762 4763 p = skb_put(skb, 2 + ssid_len); 4764 *p++ = IEEE80211_ELEMID_SSID; 4765 *p++ = ssid_len; 4766 if (ssid_len > 0) 4767 memcpy(p, ssid, ssid_len); 4768 4769 return (skb); 4770 } 4771 4772 struct sk_buff * 4773 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4774 struct ieee80211_vif *vif) 4775 { 4776 struct lkpi_vif *lvif; 4777 struct ieee80211vap *vap; 4778 struct sk_buff *skb; 4779 struct ieee80211_frame_pspoll *psp; 4780 uint16_t v; 4781 4782 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4783 if (skb == NULL) 4784 return (NULL); 4785 4786 skb_reserve(skb, hw->extra_tx_headroom); 4787 4788 lvif = VIF_TO_LVIF(vif); 4789 vap = LVIF_TO_VAP(lvif); 4790 4791 psp = skb_put_zero(skb, sizeof(*psp)); 4792 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4793 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4794 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 4795 memcpy(&psp->i_aid, &v, sizeof(v)); 4796 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4797 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4798 4799 return (skb); 4800 } 4801 4802 struct sk_buff * 4803 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4804 struct ieee80211_vif *vif, int linkid, bool qos) 4805 { 4806 struct lkpi_vif *lvif; 4807 struct ieee80211vap *vap; 4808 struct sk_buff *skb; 4809 struct ieee80211_frame *nullf; 4810 4811 IMPROVE("linkid"); 4812 4813 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4814 if (skb == NULL) 4815 return (NULL); 4816 4817 skb_reserve(skb, hw->extra_tx_headroom); 4818 4819 lvif = VIF_TO_LVIF(vif); 4820 vap = LVIF_TO_VAP(lvif); 4821 4822 nullf = skb_put_zero(skb, sizeof(*nullf)); 4823 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4824 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4825 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4826 4827 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4828 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4829 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4830 4831 return (skb); 4832 } 4833 4834 struct wireless_dev * 4835 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4836 { 4837 struct lkpi_vif *lvif; 4838 4839 lvif = VIF_TO_LVIF(vif); 4840 return (&lvif->wdev); 4841 } 4842 4843 void 4844 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4845 { 4846 struct lkpi_vif *lvif; 4847 struct ieee80211vap *vap; 4848 enum ieee80211_state nstate; 4849 int arg; 4850 4851 lvif = VIF_TO_LVIF(vif); 4852 vap = LVIF_TO_VAP(lvif); 4853 4854 /* 4855 * Go to init; otherwise we need to elaborately check state and 4856 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4857 * Let the statemachine handle all neccessary changes. 4858 */ 4859 nstate = IEEE80211_S_INIT; 4860 arg = 0; /* Not a valid reason. */ 4861 4862 #ifdef LINUXKPI_DEBUG_80211 4863 if (linuxkpi_debug_80211 & D80211_TRACE) 4864 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4865 #endif 4866 ieee80211_new_state(vap, nstate, arg); 4867 } 4868 4869 void 4870 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4871 { 4872 struct lkpi_vif *lvif; 4873 struct ieee80211vap *vap; 4874 4875 lvif = VIF_TO_LVIF(vif); 4876 vap = LVIF_TO_VAP(lvif); 4877 4878 #ifdef LINUXKPI_DEBUG_80211 4879 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4880 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4881 vif, vap, ieee80211_state_name[vap->iv_state]); 4882 #endif 4883 ieee80211_beacon_miss(vap->iv_ic); 4884 } 4885 4886 /* -------------------------------------------------------------------------- */ 4887 4888 void 4889 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 4890 { 4891 struct lkpi_hw *lhw; 4892 struct lkpi_vif *lvif; 4893 struct ieee80211_vif *vif; 4894 int ac_count, ac; 4895 4896 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 4897 __func__, qnum, hw->queues, hw)); 4898 4899 lhw = wiphy_priv(hw->wiphy); 4900 4901 /* See lkpi_ic_vap_create(). */ 4902 if (hw->queues >= IEEE80211_NUM_ACS) 4903 ac_count = IEEE80211_NUM_ACS; 4904 else 4905 ac_count = 1; 4906 4907 LKPI_80211_LHW_LVIF_LOCK(lhw); 4908 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4909 4910 vif = LVIF_TO_VIF(lvif); 4911 for (ac = 0; ac < ac_count; ac++) { 4912 IMPROVE_TXQ("LOCKING"); 4913 if (qnum == vif->hw_queue[ac]) { 4914 #ifdef LINUXKPI_DEBUG_80211 4915 /* 4916 * For now log this to better understand 4917 * how this is supposed to work. 4918 */ 4919 if (lvif->hw_queue_stopped[ac] && 4920 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 4921 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4922 "lvif %p vif %p ac %d qnum %d already " 4923 "stopped\n", __func__, __LINE__, 4924 lhw, hw, lvif, vif, ac, qnum); 4925 #endif 4926 lvif->hw_queue_stopped[ac] = true; 4927 } 4928 } 4929 } 4930 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4931 } 4932 4933 void 4934 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 4935 { 4936 int i; 4937 4938 IMPROVE_TXQ("Locking; do we need further info?"); 4939 for (i = 0; i < hw->queues; i++) 4940 linuxkpi_ieee80211_stop_queue(hw, i); 4941 } 4942 4943 4944 static void 4945 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 4946 { 4947 struct lkpi_hw *lhw; 4948 struct lkpi_vif *lvif; 4949 struct lkpi_sta *lsta; 4950 int ac_count, ac, tid; 4951 4952 /* See lkpi_ic_vap_create(). */ 4953 if (hw->queues >= IEEE80211_NUM_ACS) 4954 ac_count = IEEE80211_NUM_ACS; 4955 else 4956 ac_count = 1; 4957 4958 lhw = wiphy_priv(hw->wiphy); 4959 4960 IMPROVE_TXQ("Locking"); 4961 LKPI_80211_LHW_LVIF_LOCK(lhw); 4962 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4963 struct ieee80211_vif *vif; 4964 4965 vif = LVIF_TO_VIF(lvif); 4966 for (ac = 0; ac < ac_count; ac++) { 4967 4968 if (hwq == vif->hw_queue[ac]) { 4969 4970 /* XXX-BZ what about software scan? */ 4971 4972 #ifdef LINUXKPI_DEBUG_80211 4973 /* 4974 * For now log this to better understand 4975 * how this is supposed to work. 4976 */ 4977 if (!lvif->hw_queue_stopped[ac] && 4978 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 4979 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4980 "lvif %p vif %p ac %d hw_q not stopped\n", 4981 __func__, __LINE__, 4982 lhw, hw, lvif, vif, ac); 4983 #endif 4984 lvif->hw_queue_stopped[ac] = false; 4985 4986 LKPI_80211_LVIF_LOCK(lvif); 4987 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4988 struct ieee80211_sta *sta; 4989 4990 sta = LSTA_TO_STA(lsta); 4991 for (tid = 0; tid < nitems(sta->txq); tid++) { 4992 struct lkpi_txq *ltxq; 4993 4994 if (sta->txq[tid] == NULL) 4995 continue; 4996 4997 if (sta->txq[tid]->ac != ac) 4998 continue; 4999 5000 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 5001 if (!ltxq->stopped) 5002 continue; 5003 5004 ltxq->stopped = false; 5005 5006 /* XXX-BZ see when this explodes with all the locking. taskq? */ 5007 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 5008 } 5009 } 5010 LKPI_80211_LVIF_UNLOCK(lvif); 5011 } 5012 } 5013 } 5014 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5015 } 5016 5017 void 5018 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 5019 { 5020 int i; 5021 5022 IMPROVE_TXQ("Is this all/enough here?"); 5023 for (i = 0; i < hw->queues; i++) 5024 lkpi_ieee80211_wake_queues(hw, i); 5025 } 5026 5027 void 5028 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 5029 { 5030 5031 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5032 __func__, qnum, hw->queues, hw)); 5033 5034 lkpi_ieee80211_wake_queues(hw, qnum); 5035 } 5036 5037 /* This is just hardware queues. */ 5038 void 5039 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 5040 { 5041 struct lkpi_hw *lhw; 5042 5043 lhw = HW_TO_LHW(hw); 5044 5045 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 5046 IMPROVE_TXQ("LOCKING"); 5047 if (++lhw->txq_generation[ac] == 0) 5048 lhw->txq_generation[ac]++; 5049 } 5050 5051 struct ieee80211_txq * 5052 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 5053 { 5054 struct lkpi_hw *lhw; 5055 struct ieee80211_txq *txq; 5056 struct lkpi_txq *ltxq; 5057 5058 lhw = HW_TO_LHW(hw); 5059 txq = NULL; 5060 5061 IMPROVE_TXQ("LOCKING"); 5062 5063 /* Check that we are scheduled. */ 5064 if (lhw->txq_generation[ac] == 0) 5065 goto out; 5066 5067 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 5068 if (ltxq == NULL) 5069 goto out; 5070 if (ltxq->txq_generation == lhw->txq_generation[ac]) 5071 goto out; 5072 5073 ltxq->txq_generation = lhw->txq_generation[ac]; 5074 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 5075 txq = <xq->txq; 5076 TAILQ_ELEM_INIT(ltxq, txq_entry); 5077 5078 out: 5079 return (txq); 5080 } 5081 5082 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 5083 struct ieee80211_txq *txq, bool withoutpkts) 5084 { 5085 struct lkpi_hw *lhw; 5086 struct lkpi_txq *ltxq; 5087 5088 ltxq = TXQ_TO_LTXQ(txq); 5089 5090 IMPROVE_TXQ("LOCKING"); 5091 5092 /* Only schedule if work to do or asked to anyway. */ 5093 if (!withoutpkts && skb_queue_empty(<xq->skbq)) 5094 goto out; 5095 5096 /* Make sure we do not double-schedule. */ 5097 if (ltxq->txq_entry.tqe_next != NULL) 5098 goto out; 5099 5100 lhw = HW_TO_LHW(hw); 5101 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 5102 out: 5103 return; 5104 } 5105 5106 /* -------------------------------------------------------------------------- */ 5107 5108 struct lkpi_cfg80211_bss { 5109 u_int refcnt; 5110 struct cfg80211_bss bss; 5111 }; 5112 5113 struct lkpi_cfg80211_get_bss_iter_lookup { 5114 struct wiphy *wiphy; 5115 struct linuxkpi_ieee80211_channel *chan; 5116 const uint8_t *bssid; 5117 const uint8_t *ssid; 5118 size_t ssid_len; 5119 enum ieee80211_bss_type bss_type; 5120 enum ieee80211_privacy privacy; 5121 5122 /* 5123 * Something to store a copy of the result as the net80211 scan cache 5124 * is not refoucnted so a scan entry might go away any time. 5125 */ 5126 bool match; 5127 struct cfg80211_bss *bss; 5128 }; 5129 5130 static void 5131 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 5132 { 5133 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 5134 size_t ielen; 5135 5136 lookup = arg; 5137 5138 /* Do not try to find another match. */ 5139 if (lookup->match) 5140 return; 5141 5142 /* Nothing to store result. */ 5143 if (lookup->bss == NULL) 5144 return; 5145 5146 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 5147 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 5148 /* We have no idea what to compare to as the drivers only request ANY */ 5149 return; 5150 } 5151 5152 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 5153 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 5154 /* We have no idea what to compare to as the drivers only request ANY */ 5155 return; 5156 } 5157 5158 if (lookup->chan != NULL) { 5159 struct linuxkpi_ieee80211_channel *chan; 5160 5161 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 5162 se->se_chan->ic_freq); 5163 if (chan == NULL || chan != lookup->chan) 5164 return; 5165 } 5166 5167 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 5168 return; 5169 5170 if (lookup->ssid) { 5171 if (lookup->ssid_len != se->se_ssid[1] || 5172 se->se_ssid[1] == 0) 5173 return; 5174 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 5175 return; 5176 } 5177 5178 ielen = se->se_ies.len; 5179 5180 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 5181 M_LKPI80211, M_NOWAIT | M_ZERO); 5182 if (lookup->bss->ies == NULL) 5183 return; 5184 5185 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 5186 lookup->bss->ies->len = ielen; 5187 if (ielen) 5188 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 5189 5190 lookup->match = true; 5191 } 5192 5193 struct cfg80211_bss * 5194 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 5195 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 5196 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 5197 { 5198 struct lkpi_cfg80211_bss *lbss; 5199 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 5200 struct lkpi_hw *lhw; 5201 struct ieee80211vap *vap; 5202 5203 lhw = wiphy_priv(wiphy); 5204 5205 /* Let's hope we can alloc. */ 5206 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 5207 if (lbss == NULL) { 5208 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 5209 return (NULL); 5210 } 5211 5212 lookup.wiphy = wiphy; 5213 lookup.chan = chan; 5214 lookup.bssid = bssid; 5215 lookup.ssid = ssid; 5216 lookup.ssid_len = ssid_len; 5217 lookup.bss_type = bss_type; 5218 lookup.privacy = privacy; 5219 lookup.match = false; 5220 lookup.bss = &lbss->bss; 5221 5222 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 5223 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 5224 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 5225 if (!lookup.match) { 5226 free(lbss, M_LKPI80211); 5227 return (NULL); 5228 } 5229 5230 refcount_init(&lbss->refcnt, 1); 5231 return (&lbss->bss); 5232 } 5233 5234 void 5235 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 5236 { 5237 struct lkpi_cfg80211_bss *lbss; 5238 5239 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 5240 5241 /* Free everything again on refcount ... */ 5242 if (refcount_release(&lbss->refcnt)) { 5243 free(lbss->bss.ies, M_LKPI80211); 5244 free(lbss, M_LKPI80211); 5245 } 5246 } 5247 5248 void 5249 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 5250 { 5251 struct lkpi_hw *lhw; 5252 struct ieee80211com *ic; 5253 struct ieee80211vap *vap; 5254 5255 lhw = wiphy_priv(wiphy); 5256 ic = lhw->ic; 5257 5258 /* 5259 * If we haven't called ieee80211_ifattach() yet 5260 * or there is no VAP, there are no scans to flush. 5261 */ 5262 if (ic == NULL || 5263 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 5264 return; 5265 5266 /* Should only happen on the current one? Not seen it late enough. */ 5267 IEEE80211_LOCK(ic); 5268 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 5269 ieee80211_scan_flush(vap); 5270 IEEE80211_UNLOCK(ic); 5271 } 5272 5273 /* -------------------------------------------------------------------------- */ 5274 5275 MODULE_VERSION(linuxkpi_wlan, 1); 5276 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 5277 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 5278