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 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1430 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1431 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1432 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1433 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1434 if (error != 0) { 1435 IMPROVE("do we need to undo the chan ctx?"); 1436 goto out; 1437 } 1438 #if 0 1439 lsta->added_to_drv = false; /* mo manages. */ 1440 #endif 1441 1442 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1443 1444 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1445 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1446 lkpi_disassoc(sta, vif, lhw); 1447 1448 IMPROVE("Any bss_info changes to announce?"); 1449 bss_changed = 0; 1450 vif->bss_conf.qos = 0; 1451 bss_changed |= BSS_CHANGED_QOS; 1452 vif->cfg.ssid_len = 0; 1453 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1454 bss_changed |= BSS_CHANGED_BSSID; 1455 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1456 1457 lkpi_lsta_remove(lsta, lvif); 1458 1459 /* conf_tx */ 1460 1461 /* Take the chan ctx down. */ 1462 if (vif->chanctx_conf != NULL) { 1463 struct lkpi_chanctx *lchanctx; 1464 struct ieee80211_chanctx_conf *conf; 1465 1466 conf = vif->chanctx_conf; 1467 /* Remove vif context. */ 1468 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1469 /* NB: vif->chanctx_conf is NULL now. */ 1470 1471 /* Remove chan ctx. */ 1472 lkpi_80211_mo_remove_chanctx(hw, conf); 1473 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1474 free(lchanctx, M_LKPI80211); 1475 } 1476 1477 error = EALREADY; 1478 out: 1479 LKPI_80211_LHW_UNLOCK(lhw); 1480 IEEE80211_LOCK(vap->iv_ic); 1481 outni: 1482 if (ni != NULL) 1483 ieee80211_free_node(ni); 1484 return (error); 1485 } 1486 1487 static int 1488 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1489 { 1490 int error; 1491 1492 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1493 if (error != 0 && error != EALREADY) 1494 return (error); 1495 1496 /* At this point iv_bss is long a new node! */ 1497 1498 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1499 return (error); 1500 } 1501 1502 static int 1503 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1504 { 1505 int error; 1506 1507 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1508 return (error); 1509 } 1510 1511 static int 1512 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1513 { 1514 int error; 1515 1516 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1517 return (error); 1518 } 1519 1520 static int 1521 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1522 { 1523 struct lkpi_hw *lhw; 1524 struct ieee80211_hw *hw; 1525 struct lkpi_vif *lvif; 1526 struct ieee80211_vif *vif; 1527 struct ieee80211_node *ni; 1528 struct lkpi_sta *lsta; 1529 struct ieee80211_sta *sta; 1530 struct ieee80211_prep_tx_info prep_tx_info; 1531 enum ieee80211_bss_changed bss_changed; 1532 int error; 1533 1534 lhw = vap->iv_ic->ic_softc; 1535 hw = LHW_TO_HW(lhw); 1536 lvif = VAP_TO_LVIF(vap); 1537 vif = LVIF_TO_VIF(lvif); 1538 1539 IEEE80211_UNLOCK(vap->iv_ic); 1540 LKPI_80211_LHW_LOCK(lhw); 1541 ni = NULL; 1542 1543 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1544 "and to lesser extend ieee80211_notify_node_join"); 1545 1546 /* Finish assoc. */ 1547 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1548 ni = ieee80211_ref_node(vap->iv_bss); 1549 lsta = ni->ni_drv_data; 1550 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1551 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1552 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1553 sta = LSTA_TO_STA(lsta); 1554 sta->aid = IEEE80211_NODE_AID(ni); 1555 #ifdef LKPI_80211_WME 1556 if (vap->iv_flags & IEEE80211_F_WME) 1557 sta->wme = true; 1558 #endif 1559 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1560 if (error != 0) 1561 goto out; 1562 1563 IMPROVE("wme / conf_tx [all]"); 1564 1565 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1566 bss_changed = 0; 1567 #ifdef LKPI_80211_WME 1568 bss_changed |= lkpi_wme_update(lhw, vap, true); 1569 #endif 1570 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 1571 vif->cfg.assoc = true; 1572 vif->cfg.aid = IEEE80211_NODE_AID(ni); 1573 bss_changed |= BSS_CHANGED_ASSOC; 1574 } 1575 /* We set SSID but this is not BSSID! */ 1576 vif->cfg.ssid_len = ni->ni_esslen; 1577 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 1578 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1579 vif->bss_conf.use_short_preamble) { 1580 vif->bss_conf.use_short_preamble ^= 1; 1581 /* bss_changed |= BSS_CHANGED_??? */ 1582 } 1583 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1584 vif->bss_conf.use_short_slot) { 1585 vif->bss_conf.use_short_slot ^= 1; 1586 /* bss_changed |= BSS_CHANGED_??? */ 1587 } 1588 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1589 vif->bss_conf.qos) { 1590 vif->bss_conf.qos ^= 1; 1591 bss_changed |= BSS_CHANGED_QOS; 1592 } 1593 1594 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1595 1596 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1597 1598 /* - change_chanctx (if needed) 1599 * - event_callback 1600 */ 1601 1602 /* End mgd_complete_tx. */ 1603 if (lsta->in_mgd) { 1604 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1605 prep_tx_info.success = true; 1606 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1607 lsta->in_mgd = false; 1608 } 1609 1610 lkpi_hw_conf_idle(hw, false); 1611 1612 /* 1613 * And then: 1614 * - (more packets)? 1615 * - set_key 1616 * - set_default_unicast_key 1617 * - set_key (?) 1618 * - ipv6_addr_change (?) 1619 */ 1620 /* Prepare_multicast && configure_filter. */ 1621 lhw->update_mc = true; 1622 lkpi_update_mcast_filter(vap->iv_ic, true); 1623 1624 if (!ieee80211_node_is_authorized(ni)) { 1625 IMPROVE("net80211 does not consider node authorized"); 1626 } 1627 1628 /* Update sta_state (ASSOC to AUTHORIZED). */ 1629 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1630 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1631 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1632 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1633 if (error != 0) { 1634 IMPROVE("undo some changes?"); 1635 goto out; 1636 } 1637 1638 /* - drv_config (?) 1639 * - bss_info_changed 1640 * - set_rekey_data (?) 1641 * 1642 * And now we should be passing packets. 1643 */ 1644 IMPROVE("Need that bssid setting, and the keys"); 1645 1646 bss_changed = 0; 1647 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1648 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1649 1650 out: 1651 LKPI_80211_LHW_UNLOCK(lhw); 1652 IEEE80211_LOCK(vap->iv_ic); 1653 if (ni != NULL) 1654 ieee80211_free_node(ni); 1655 return (error); 1656 } 1657 1658 static int 1659 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1660 { 1661 int error; 1662 1663 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1664 if (error == 0) 1665 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1666 return (error); 1667 } 1668 1669 static int 1670 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1671 { 1672 struct lkpi_hw *lhw; 1673 struct ieee80211_hw *hw; 1674 struct lkpi_vif *lvif; 1675 struct ieee80211_vif *vif; 1676 struct ieee80211_node *ni; 1677 struct lkpi_sta *lsta; 1678 struct ieee80211_sta *sta; 1679 struct ieee80211_prep_tx_info prep_tx_info; 1680 #if 0 1681 enum ieee80211_bss_changed bss_changed; 1682 #endif 1683 int error; 1684 1685 lhw = vap->iv_ic->ic_softc; 1686 hw = LHW_TO_HW(lhw); 1687 lvif = VAP_TO_LVIF(vap); 1688 vif = LVIF_TO_VIF(lvif); 1689 1690 /* Keep ni around. */ 1691 ni = ieee80211_ref_node(vap->iv_bss); 1692 lsta = ni->ni_drv_data; 1693 sta = LSTA_TO_STA(lsta); 1694 1695 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1696 1697 IEEE80211_UNLOCK(vap->iv_ic); 1698 LKPI_80211_LHW_LOCK(lhw); 1699 1700 /* flush, drop. */ 1701 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1702 1703 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1704 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1705 !lsta->in_mgd) { 1706 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1707 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1708 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1709 lsta->in_mgd = true; 1710 } 1711 1712 LKPI_80211_LHW_UNLOCK(lhw); 1713 IEEE80211_LOCK(vap->iv_ic); 1714 1715 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1716 error = lvif->iv_newstate(vap, nstate, arg); 1717 if (error != 0) 1718 goto outni; 1719 1720 IEEE80211_UNLOCK(vap->iv_ic); 1721 LKPI_80211_LHW_LOCK(lhw); 1722 1723 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1724 1725 /* Wake tx queues to get packet(s) out. */ 1726 lkpi_wake_tx_queues(hw, sta, true, true); 1727 1728 /* flush, no drop */ 1729 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1730 1731 /* End mgd_complete_tx. */ 1732 if (lsta->in_mgd) { 1733 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1734 prep_tx_info.success = false; 1735 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1736 lsta->in_mgd = false; 1737 } 1738 1739 #if 0 1740 /* sync_rx_queues */ 1741 lkpi_80211_mo_sync_rx_queues(hw); 1742 1743 /* sta_pre_rcu_remove */ 1744 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1745 #endif 1746 1747 /* Take the station down. */ 1748 1749 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1750 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1751 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1752 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1753 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1754 if (error != 0) 1755 goto out; 1756 1757 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1758 1759 /* Update sta_state (ASSOC to AUTH). */ 1760 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1761 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1762 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1763 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1764 if (error != 0) 1765 goto out; 1766 1767 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1768 1769 #if 0 1770 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1771 lkpi_disassoc(sta, vif, lhw); 1772 #endif 1773 1774 error = EALREADY; 1775 out: 1776 LKPI_80211_LHW_UNLOCK(lhw); 1777 IEEE80211_LOCK(vap->iv_ic); 1778 outni: 1779 if (ni != NULL) 1780 ieee80211_free_node(ni); 1781 return (error); 1782 } 1783 1784 static int 1785 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1786 { 1787 struct lkpi_hw *lhw; 1788 struct ieee80211_hw *hw; 1789 struct lkpi_vif *lvif; 1790 struct ieee80211_vif *vif; 1791 struct ieee80211_node *ni; 1792 struct lkpi_sta *lsta; 1793 struct ieee80211_sta *sta; 1794 struct ieee80211_prep_tx_info prep_tx_info; 1795 enum ieee80211_bss_changed bss_changed; 1796 int error; 1797 1798 lhw = vap->iv_ic->ic_softc; 1799 hw = LHW_TO_HW(lhw); 1800 lvif = VAP_TO_LVIF(vap); 1801 vif = LVIF_TO_VIF(lvif); 1802 1803 /* Keep ni around. */ 1804 ni = ieee80211_ref_node(vap->iv_bss); 1805 lsta = ni->ni_drv_data; 1806 sta = LSTA_TO_STA(lsta); 1807 1808 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1809 1810 IEEE80211_UNLOCK(vap->iv_ic); 1811 LKPI_80211_LHW_LOCK(lhw); 1812 1813 /* flush, drop. */ 1814 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1815 1816 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1817 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1818 !lsta->in_mgd) { 1819 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1820 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1821 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1822 lsta->in_mgd = true; 1823 } 1824 1825 LKPI_80211_LHW_UNLOCK(lhw); 1826 IEEE80211_LOCK(vap->iv_ic); 1827 1828 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1829 error = lvif->iv_newstate(vap, nstate, arg); 1830 if (error != 0) 1831 goto outni; 1832 1833 IEEE80211_UNLOCK(vap->iv_ic); 1834 LKPI_80211_LHW_LOCK(lhw); 1835 1836 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1837 1838 /* Wake tx queues to get packet(s) out. */ 1839 lkpi_wake_tx_queues(hw, sta, true, true); 1840 1841 /* flush, no drop */ 1842 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1843 1844 /* End mgd_complete_tx. */ 1845 if (lsta->in_mgd) { 1846 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1847 prep_tx_info.success = false; 1848 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1849 lsta->in_mgd = false; 1850 } 1851 1852 /* sync_rx_queues */ 1853 lkpi_80211_mo_sync_rx_queues(hw); 1854 1855 /* sta_pre_rcu_remove */ 1856 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1857 1858 /* Take the station down. */ 1859 1860 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1861 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1862 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1863 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1864 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1865 if (error != 0) 1866 goto out; 1867 1868 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1869 1870 /* Update sta_state (ASSOC to AUTH). */ 1871 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1872 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1873 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1874 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1875 if (error != 0) 1876 goto out; 1877 1878 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1879 1880 /* Update sta and change state (from AUTH) to NONE. */ 1881 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1882 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1883 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1884 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1885 if (error != 0) 1886 goto out; 1887 1888 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1889 1890 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1891 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1892 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1893 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1894 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1895 if (error != 0) { 1896 IMPROVE("do we need to undo the chan ctx?"); 1897 goto out; 1898 } 1899 #if 0 1900 lsta->added_to_drv = false; /* mo manages. */ 1901 #endif 1902 1903 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1904 1905 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1906 /* 1907 * One would expect this to happen when going off AUTHORIZED. 1908 * See comment there; removes the sta from fw. 1909 */ 1910 lkpi_disassoc(sta, vif, lhw); 1911 1912 IMPROVE("Any bss_info changes to announce?"); 1913 bss_changed = 0; 1914 vif->bss_conf.qos = 0; 1915 bss_changed |= BSS_CHANGED_QOS; 1916 vif->cfg.ssid_len = 0; 1917 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1918 bss_changed |= BSS_CHANGED_BSSID; 1919 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1920 1921 lkpi_lsta_remove(lsta, lvif); 1922 1923 /* conf_tx */ 1924 1925 /* Take the chan ctx down. */ 1926 if (vif->chanctx_conf != NULL) { 1927 struct lkpi_chanctx *lchanctx; 1928 struct ieee80211_chanctx_conf *conf; 1929 1930 conf = vif->chanctx_conf; 1931 /* Remove vif context. */ 1932 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1933 /* NB: vif->chanctx_conf is NULL now. */ 1934 1935 /* Remove chan ctx. */ 1936 lkpi_80211_mo_remove_chanctx(hw, conf); 1937 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1938 free(lchanctx, M_LKPI80211); 1939 } 1940 1941 error = EALREADY; 1942 out: 1943 LKPI_80211_LHW_UNLOCK(lhw); 1944 IEEE80211_LOCK(vap->iv_ic); 1945 outni: 1946 if (ni != NULL) 1947 ieee80211_free_node(ni); 1948 return (error); 1949 } 1950 1951 static int 1952 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1953 { 1954 1955 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1956 } 1957 1958 static int 1959 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1960 { 1961 int error; 1962 1963 error = lkpi_sta_run_to_init(vap, nstate, arg); 1964 if (error != 0 && error != EALREADY) 1965 return (error); 1966 1967 /* At this point iv_bss is long a new node! */ 1968 1969 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1970 return (error); 1971 } 1972 1973 /* -------------------------------------------------------------------------- */ 1974 1975 /* 1976 * The matches the documented state changes in net80211::sta_newstate(). 1977 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1978 * there are "invalid" (so there is a room for failure here). 1979 */ 1980 struct fsm_state { 1981 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1982 enum ieee80211_state ostate; 1983 enum ieee80211_state nstate; 1984 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1985 } sta_state_fsm[] = { 1986 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1987 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1988 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1989 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1990 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1991 1992 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1993 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1994 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1995 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1996 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1997 1998 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1999 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2000 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2001 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2002 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2003 2004 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2005 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2006 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2007 2008 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2009 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2010 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2011 2012 /* Dummy at the end without handler. */ 2013 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2014 }; 2015 2016 static int 2017 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2018 { 2019 struct ieee80211com *ic; 2020 struct lkpi_hw *lhw; 2021 struct lkpi_vif *lvif; 2022 struct ieee80211_vif *vif; 2023 struct fsm_state *s; 2024 enum ieee80211_state ostate; 2025 int error; 2026 2027 ic = vap->iv_ic; 2028 IEEE80211_LOCK_ASSERT(ic); 2029 ostate = vap->iv_state; 2030 2031 #ifdef LINUXKPI_DEBUG_80211 2032 if (linuxkpi_debug_80211 & D80211_TRACE) 2033 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2034 __func__, __LINE__, vap, nstate, arg); 2035 #endif 2036 2037 if (vap->iv_opmode == IEEE80211_M_STA) { 2038 2039 lhw = ic->ic_softc; 2040 lvif = VAP_TO_LVIF(vap); 2041 vif = LVIF_TO_VIF(lvif); 2042 2043 /* No need to replicate this in most state handlers. */ 2044 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2045 lkpi_stop_hw_scan(lhw, vif); 2046 2047 s = sta_state_fsm; 2048 2049 } else { 2050 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2051 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2052 return (ENOSYS); 2053 } 2054 2055 error = 0; 2056 for (; s->handler != NULL; s++) { 2057 if (ostate == s->ostate && nstate == s->nstate) { 2058 #ifdef LINUXKPI_DEBUG_80211 2059 if (linuxkpi_debug_80211 & D80211_TRACE) 2060 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2061 " %d (%s): arg %d.\n", __func__, 2062 ostate, ieee80211_state_name[ostate], 2063 nstate, ieee80211_state_name[nstate], arg); 2064 #endif 2065 error = s->handler(vap, nstate, arg); 2066 break; 2067 } 2068 } 2069 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2070 2071 if (s->handler == NULL) { 2072 IMPROVE("turn this into a KASSERT\n"); 2073 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2074 "%d (%s) -> %d (%s)\n", __func__, 2075 ostate, ieee80211_state_name[ostate], 2076 nstate, ieee80211_state_name[nstate]); 2077 return (ENOSYS); 2078 } 2079 2080 if (error == EALREADY) { 2081 #ifdef LINUXKPI_DEBUG_80211 2082 if (linuxkpi_debug_80211 & D80211_TRACE) 2083 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2084 "%d (%s): iv_newstate already handled: %d.\n", 2085 __func__, ostate, ieee80211_state_name[ostate], 2086 nstate, ieee80211_state_name[nstate], error); 2087 #endif 2088 return (0); 2089 } 2090 2091 if (error != 0) { 2092 /* XXX-BZ currently expected so ignore. */ 2093 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2094 "%d (%s) -> %d (%s)\n", __func__, error, 2095 ostate, ieee80211_state_name[ostate], 2096 nstate, ieee80211_state_name[nstate]); 2097 /* return (error); */ 2098 } 2099 2100 #ifdef LINUXKPI_DEBUG_80211 2101 if (linuxkpi_debug_80211 & D80211_TRACE) 2102 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2103 "calling net80211 parent\n", 2104 __func__, __LINE__, vap, nstate, arg); 2105 #endif 2106 2107 return (lvif->iv_newstate(vap, nstate, arg)); 2108 } 2109 2110 /* -------------------------------------------------------------------------- */ 2111 2112 /* 2113 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2114 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2115 * new node without us knowing and thus our ni/lsta are out of sync. 2116 */ 2117 static struct ieee80211_node * 2118 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2119 { 2120 struct lkpi_vif *lvif; 2121 struct ieee80211_node *obss; 2122 struct lkpi_sta *lsta; 2123 struct ieee80211_sta *sta; 2124 2125 obss = vap->iv_bss; 2126 2127 #ifdef LINUXKPI_DEBUG_80211 2128 if (linuxkpi_debug_80211 & D80211_TRACE) 2129 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2130 "ni %p ni_drv_data %p\n", __func__, 2131 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2132 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2133 #endif 2134 2135 /* Nothing to copy from. Just return. */ 2136 if (obss == NULL || obss->ni_drv_data == NULL) 2137 goto out; 2138 2139 /* Nothing to copy to. Just return. */ 2140 IMPROVE("clearing the obss might still be needed?"); 2141 if (ni == NULL) 2142 goto out; 2143 2144 /* Nothing changed? panic? */ 2145 if (obss == ni) 2146 goto out; 2147 2148 lsta = obss->ni_drv_data; 2149 obss->ni_drv_data = ni->ni_drv_data; 2150 ni->ni_drv_data = lsta; 2151 if (lsta != NULL) { 2152 lsta->ni = ni; 2153 sta = LSTA_TO_STA(lsta); 2154 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2155 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2156 } 2157 lsta = obss->ni_drv_data; 2158 if (lsta != NULL) { 2159 lsta->ni = obss; 2160 sta = LSTA_TO_STA(lsta); 2161 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2162 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2163 } 2164 2165 out: 2166 lvif = VAP_TO_LVIF(vap); 2167 return (lvif->iv_update_bss(vap, ni)); 2168 } 2169 2170 #ifdef LKPI_80211_WME 2171 static int 2172 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2173 { 2174 struct ieee80211com *ic; 2175 struct ieee80211_hw *hw; 2176 struct lkpi_vif *lvif; 2177 struct ieee80211_vif *vif; 2178 struct chanAccParams chp; 2179 struct wmeParams wmeparr[WME_NUM_AC]; 2180 struct ieee80211_tx_queue_params txqp; 2181 enum ieee80211_bss_changed changed; 2182 int error; 2183 uint16_t ac; 2184 2185 IMPROVE(); 2186 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2187 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2188 2189 if (vap == NULL) 2190 return (0); 2191 2192 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2193 return (0); 2194 2195 if (lhw->ops->conf_tx == NULL) 2196 return (0); 2197 2198 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2199 lhw->update_wme = true; 2200 return (0); 2201 } 2202 lhw->update_wme = false; 2203 2204 ic = lhw->ic; 2205 ieee80211_wme_ic_getparams(ic, &chp); 2206 IEEE80211_LOCK(ic); 2207 for (ac = 0; ac < WME_NUM_AC; ac++) 2208 wmeparr[ac] = chp.cap_wmeParams[ac]; 2209 IEEE80211_UNLOCK(ic); 2210 2211 hw = LHW_TO_HW(lhw); 2212 lvif = VAP_TO_LVIF(vap); 2213 vif = LVIF_TO_VIF(lvif); 2214 2215 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2216 LKPI_80211_LHW_LOCK(lhw); 2217 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2218 struct wmeParams *wmep; 2219 2220 wmep = &wmeparr[ac]; 2221 bzero(&txqp, sizeof(txqp)); 2222 txqp.cw_min = wmep->wmep_logcwmin; 2223 txqp.cw_max = wmep->wmep_logcwmax; 2224 txqp.txop = wmep->wmep_txopLimit; 2225 txqp.aifs = wmep->wmep_aifsn; 2226 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2227 if (error != 0) 2228 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2229 __func__, ac, error); 2230 } 2231 LKPI_80211_LHW_UNLOCK(lhw); 2232 changed = BSS_CHANGED_QOS; 2233 if (!planned) 2234 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2235 2236 return (changed); 2237 } 2238 #endif 2239 2240 static int 2241 lkpi_ic_wme_update(struct ieee80211com *ic) 2242 { 2243 #ifdef LKPI_80211_WME 2244 struct ieee80211vap *vap; 2245 struct lkpi_hw *lhw; 2246 2247 IMPROVE("Use the per-VAP callback in net80211."); 2248 vap = TAILQ_FIRST(&ic->ic_vaps); 2249 if (vap == NULL) 2250 return (0); 2251 2252 lhw = ic->ic_softc; 2253 2254 lkpi_wme_update(lhw, vap, false); 2255 #endif 2256 return (0); /* unused */ 2257 } 2258 2259 static struct ieee80211vap * 2260 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2261 int unit, enum ieee80211_opmode opmode, int flags, 2262 const uint8_t bssid[IEEE80211_ADDR_LEN], 2263 const uint8_t mac[IEEE80211_ADDR_LEN]) 2264 { 2265 struct lkpi_hw *lhw; 2266 struct ieee80211_hw *hw; 2267 struct lkpi_vif *lvif; 2268 struct ieee80211vap *vap; 2269 struct ieee80211_vif *vif; 2270 struct ieee80211_tx_queue_params txqp; 2271 enum ieee80211_bss_changed changed; 2272 size_t len; 2273 int error, i; 2274 uint16_t ac; 2275 2276 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2277 return (NULL); 2278 2279 lhw = ic->ic_softc; 2280 hw = LHW_TO_HW(lhw); 2281 2282 len = sizeof(*lvif); 2283 len += hw->vif_data_size; /* vif->drv_priv */ 2284 2285 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2286 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2287 TAILQ_INIT(&lvif->lsta_head); 2288 vap = LVIF_TO_VAP(lvif); 2289 2290 vif = LVIF_TO_VIF(lvif); 2291 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2292 vif->p2p = false; 2293 vif->probe_req_reg = false; 2294 vif->type = lkpi_opmode_to_vif_type(opmode); 2295 lvif->wdev.iftype = vif->type; 2296 /* Need to fill in other fields as well. */ 2297 IMPROVE(); 2298 2299 /* XXX-BZ hardcoded for now! */ 2300 #if 1 2301 vif->chanctx_conf = NULL; 2302 vif->bss_conf.vif = vif; 2303 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2304 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2305 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2306 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2307 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2308 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2309 vif->bss_conf.qos = false; 2310 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2311 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2312 vif->cfg.aid = 0; 2313 vif->cfg.assoc = false; 2314 vif->cfg.idle = true; 2315 vif->cfg.ps = false; 2316 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2317 /* 2318 * We need to initialize it to something as the bss_info_changed call 2319 * will try to copy from it in iwlwifi and NULL is a panic. 2320 * We will set the proper one in scan_to_auth() before being assoc. 2321 */ 2322 vif->bss_conf.bssid = ieee80211broadcastaddr; 2323 #endif 2324 #if 0 2325 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2326 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2327 vif->bss_conf.beacon_int = ic->ic_bintval; 2328 /* iwlwifi bug. */ 2329 if (vif->bss_conf.beacon_int < 16) 2330 vif->bss_conf.beacon_int = 16; 2331 #endif 2332 2333 /* Link Config */ 2334 vif->link_conf[0] = &vif->bss_conf; 2335 for (i = 0; i < nitems(vif->link_conf); i++) { 2336 IMPROVE("more than 1 link one day"); 2337 } 2338 2339 /* Setup queue defaults; driver may override in (*add_interface). */ 2340 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2341 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2342 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2343 else if (hw->queues >= IEEE80211_NUM_ACS) 2344 vif->hw_queue[i] = i; 2345 else 2346 vif->hw_queue[i] = 0; 2347 2348 /* Initialize the queue to running. Stopped? */ 2349 lvif->hw_queue_stopped[i] = false; 2350 } 2351 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2352 2353 IMPROVE(); 2354 2355 error = lkpi_80211_mo_start(hw); 2356 if (error != 0) { 2357 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2358 mtx_destroy(&lvif->mtx); 2359 free(lvif, M_80211_VAP); 2360 return (NULL); 2361 } 2362 2363 error = lkpi_80211_mo_add_interface(hw, vif); 2364 if (error != 0) { 2365 IMPROVE(); /* XXX-BZ mo_stop()? */ 2366 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2367 mtx_destroy(&lvif->mtx); 2368 free(lvif, M_80211_VAP); 2369 return (NULL); 2370 } 2371 2372 LKPI_80211_LHW_LVIF_LOCK(lhw); 2373 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2374 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2375 2376 /* Set bss_info. */ 2377 changed = 0; 2378 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2379 2380 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2381 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2382 LKPI_80211_LHW_LOCK(lhw); 2383 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2384 2385 bzero(&txqp, sizeof(txqp)); 2386 txqp.cw_min = 15; 2387 txqp.cw_max = 1023; 2388 txqp.txop = 0; 2389 txqp.aifs = 2; 2390 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2391 if (error != 0) 2392 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2393 __func__, ac, error); 2394 } 2395 LKPI_80211_LHW_UNLOCK(lhw); 2396 changed = BSS_CHANGED_QOS; 2397 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2398 2399 /* Force MC init. */ 2400 lkpi_update_mcast_filter(ic, true); 2401 2402 IMPROVE(); 2403 2404 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2405 2406 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2407 lvif->iv_newstate = vap->iv_newstate; 2408 vap->iv_newstate = lkpi_iv_newstate; 2409 lvif->iv_update_bss = vap->iv_update_bss; 2410 vap->iv_update_bss = lkpi_iv_update_bss; 2411 2412 /* Key management. */ 2413 if (lhw->ops->set_key != NULL) { 2414 #ifdef LKPI_80211_HW_CRYPTO 2415 vap->iv_key_set = lkpi_iv_key_set; 2416 vap->iv_key_delete = lkpi_iv_key_delete; 2417 #endif 2418 } 2419 2420 ieee80211_ratectl_init(vap); 2421 2422 /* Complete setup. */ 2423 ieee80211_vap_attach(vap, ieee80211_media_change, 2424 ieee80211_media_status, mac); 2425 2426 if (hw->max_listen_interval == 0) 2427 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2428 hw->conf.listen_interval = hw->max_listen_interval; 2429 ic->ic_set_channel(ic); 2430 2431 /* XXX-BZ do we need to be able to update these? */ 2432 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2433 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2434 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2435 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2436 /* any others? */ 2437 IMPROVE(); 2438 2439 return (vap); 2440 } 2441 2442 void 2443 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2444 { 2445 2446 wiphy_unregister(hw->wiphy); 2447 linuxkpi_ieee80211_ifdetach(hw); 2448 2449 IMPROVE(); 2450 } 2451 2452 void 2453 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2454 { 2455 2456 TODO(); 2457 } 2458 2459 static void 2460 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2461 { 2462 struct ieee80211com *ic; 2463 struct lkpi_hw *lhw; 2464 struct ieee80211_hw *hw; 2465 struct lkpi_vif *lvif; 2466 struct ieee80211_vif *vif; 2467 2468 lvif = VAP_TO_LVIF(vap); 2469 vif = LVIF_TO_VIF(lvif); 2470 ic = vap->iv_ic; 2471 lhw = ic->ic_softc; 2472 hw = LHW_TO_HW(lhw); 2473 2474 LKPI_80211_LHW_LVIF_LOCK(lhw); 2475 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2476 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2477 lkpi_80211_mo_remove_interface(hw, vif); 2478 2479 ieee80211_ratectl_deinit(vap); 2480 ieee80211_vap_detach(vap); 2481 mtx_destroy(&lvif->mtx); 2482 free(lvif, M_80211_VAP); 2483 } 2484 2485 static void 2486 lkpi_ic_update_mcast(struct ieee80211com *ic) 2487 { 2488 2489 lkpi_update_mcast_filter(ic, false); 2490 TRACEOK(); 2491 } 2492 2493 static void 2494 lkpi_ic_update_promisc(struct ieee80211com *ic) 2495 { 2496 2497 UNIMPLEMENTED; 2498 } 2499 2500 static void 2501 lkpi_ic_update_chw(struct ieee80211com *ic) 2502 { 2503 2504 UNIMPLEMENTED; 2505 } 2506 2507 /* Start / stop device. */ 2508 static void 2509 lkpi_ic_parent(struct ieee80211com *ic) 2510 { 2511 struct lkpi_hw *lhw; 2512 #ifdef HW_START_STOP 2513 struct ieee80211_hw *hw; 2514 int error; 2515 #endif 2516 bool start_all; 2517 2518 IMPROVE(); 2519 2520 lhw = ic->ic_softc; 2521 #ifdef HW_START_STOP 2522 hw = LHW_TO_HW(lhw); 2523 #endif 2524 start_all = false; 2525 2526 /* IEEE80211_UNLOCK(ic); */ 2527 LKPI_80211_LHW_LOCK(lhw); 2528 if (ic->ic_nrunning > 0) { 2529 #ifdef HW_START_STOP 2530 error = lkpi_80211_mo_start(hw); 2531 if (error == 0) 2532 #endif 2533 start_all = true; 2534 } else { 2535 #ifdef HW_START_STOP 2536 lkpi_80211_mo_stop(hw); 2537 #endif 2538 } 2539 LKPI_80211_LHW_UNLOCK(lhw); 2540 /* IEEE80211_LOCK(ic); */ 2541 2542 if (start_all) 2543 ieee80211_start_all(ic); 2544 } 2545 2546 bool 2547 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2548 size_t ie_ids_len) 2549 { 2550 int i; 2551 2552 for (i = 0; i < ie_ids_len; i++) { 2553 if (ie == *ie_ids) 2554 return (true); 2555 } 2556 2557 return (false); 2558 } 2559 2560 /* Return true if skipped; false if error. */ 2561 bool 2562 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2563 { 2564 size_t x; 2565 uint8_t l; 2566 2567 x = *xp; 2568 2569 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2570 __func__, x, ies_len, ies)); 2571 l = ies[x + 1]; 2572 x += 2 + l; 2573 2574 if (x > ies_len) 2575 return (false); 2576 2577 *xp = x; 2578 return (true); 2579 } 2580 2581 static uint8_t * 2582 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2583 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2584 { 2585 struct ieee80211_supported_band *supband; 2586 struct linuxkpi_ieee80211_channel *channels; 2587 struct ieee80211com *ic; 2588 const struct ieee80211_channel *chan; 2589 const struct ieee80211_rateset *rs; 2590 uint8_t *pb; 2591 int band, i; 2592 2593 ic = vap->iv_ic; 2594 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2595 if ((band_mask & (1 << band)) == 0) 2596 continue; 2597 2598 supband = hw->wiphy->bands[band]; 2599 /* 2600 * This should not happen; 2601 * band_mask is a bitmask of valid bands to scan on. 2602 */ 2603 if (supband == NULL || supband->n_channels == 0) 2604 continue; 2605 2606 /* Find a first channel to get the mode and rates from. */ 2607 channels = supband->channels; 2608 chan = NULL; 2609 for (i = 0; i < supband->n_channels; i++) { 2610 2611 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2612 continue; 2613 2614 chan = ieee80211_find_channel(ic, 2615 channels[i].center_freq, 0); 2616 if (chan != NULL) 2617 break; 2618 } 2619 2620 /* This really should not happen. */ 2621 if (chan == NULL) 2622 continue; 2623 2624 pb = p; 2625 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 2626 p = ieee80211_add_rates(p, rs); 2627 p = ieee80211_add_xrates(p, rs); 2628 2629 #if defined(LKPI_80211_HT) 2630 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 2631 struct ieee80211_channel *c; 2632 2633 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2634 vap->iv_flags_ht); 2635 p = ieee80211_add_htcap_ch(p, vap, c); 2636 } 2637 #endif 2638 #if defined(LKPI_80211_VHT) 2639 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 2640 struct ieee80211_channel *c; 2641 2642 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2643 vap->iv_flags_ht); 2644 c = ieee80211_vht_adjust_channel(ic, c, 2645 vap->iv_vht_flags); 2646 p = ieee80211_add_vhtcap_ch(p, vap, c); 2647 } 2648 #endif 2649 2650 scan_ies->ies[band] = pb; 2651 scan_ies->len[band] = p - pb; 2652 } 2653 2654 /* Add common_ies */ 2655 pb = p; 2656 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2657 vap->iv_wpa_ie != NULL) { 2658 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2659 p += 2 + vap->iv_wpa_ie[1]; 2660 } 2661 if (vap->iv_appie_probereq != NULL) { 2662 memcpy(p, vap->iv_appie_probereq->ie_data, 2663 vap->iv_appie_probereq->ie_len); 2664 p += vap->iv_appie_probereq->ie_len; 2665 } 2666 scan_ies->common_ies = pb; 2667 scan_ies->common_ie_len = p - pb; 2668 2669 return (p); 2670 } 2671 2672 static void 2673 lkpi_ic_scan_start(struct ieee80211com *ic) 2674 { 2675 struct lkpi_hw *lhw; 2676 struct ieee80211_hw *hw; 2677 struct lkpi_vif *lvif; 2678 struct ieee80211_vif *vif; 2679 struct ieee80211_scan_state *ss; 2680 struct ieee80211vap *vap; 2681 int error; 2682 bool is_hw_scan; 2683 2684 lhw = ic->ic_softc; 2685 LKPI_80211_LHW_SCAN_LOCK(lhw); 2686 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2687 /* A scan is still running. */ 2688 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2689 return; 2690 } 2691 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2692 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2693 2694 ss = ic->ic_scan; 2695 vap = ss->ss_vap; 2696 if (vap->iv_state != IEEE80211_S_SCAN) { 2697 IMPROVE("We need to be able to scan if not in S_SCAN"); 2698 return; 2699 } 2700 2701 hw = LHW_TO_HW(lhw); 2702 if (!is_hw_scan) { 2703 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2704 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2705 sw_scan: 2706 lvif = VAP_TO_LVIF(vap); 2707 vif = LVIF_TO_VIF(lvif); 2708 2709 if (vap->iv_state == IEEE80211_S_SCAN) 2710 lkpi_hw_conf_idle(hw, false); 2711 2712 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2713 /* net80211::scan_start() handled PS for us. */ 2714 IMPROVE(); 2715 /* XXX Also means it is too late to flush queues? 2716 * need to check iv_sta_ps or overload? */ 2717 /* XXX want to adjust ss end time/ maxdwell? */ 2718 2719 } else { 2720 struct ieee80211_channel *c; 2721 struct ieee80211_scan_request *hw_req; 2722 struct linuxkpi_ieee80211_channel *lc, **cpp; 2723 struct cfg80211_ssid *ssids; 2724 struct cfg80211_scan_6ghz_params *s6gp; 2725 size_t chan_len, nchan, ssids_len, s6ghzlen; 2726 int band, i, ssid_count, common_ie_len; 2727 uint32_t band_mask; 2728 uint8_t *ie, *ieend; 2729 bool running; 2730 2731 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2732 ssids_len = ssid_count * sizeof(*ssids); 2733 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2734 2735 band_mask = 0; 2736 nchan = 0; 2737 for (i = ss->ss_next; i < ss->ss_last; i++) { 2738 nchan++; 2739 band = lkpi_net80211_chan_to_nl80211_band( 2740 ss->ss_chans[ss->ss_next + i]); 2741 band_mask |= (1 << band); 2742 } 2743 2744 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2745 IMPROVE("individual band scans not yet supported, only scanning first band"); 2746 /* In theory net80211 should drive this. */ 2747 /* Probably we need to add local logic for now; 2748 * need to deal with scan_complete 2749 * and cancel_scan and keep local state. 2750 * Also cut the nchan down above. 2751 */ 2752 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 2753 } 2754 2755 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2756 2757 common_ie_len = 0; 2758 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2759 vap->iv_wpa_ie != NULL) 2760 common_ie_len += vap->iv_wpa_ie[1]; 2761 if (vap->iv_appie_probereq != NULL) 2762 common_ie_len += vap->iv_appie_probereq->ie_len; 2763 2764 /* We would love to check this at an earlier stage... */ 2765 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2766 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2767 "wiphy->max_scan_ie_len %d\n", __func__, 2768 common_ie_len, hw->wiphy->max_scan_ie_len); 2769 } 2770 2771 hw_req = malloc(sizeof(*hw_req) + ssids_len + 2772 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2773 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2774 2775 hw_req->req.flags = 0; /* XXX ??? */ 2776 /* hw_req->req.wdev */ 2777 hw_req->req.wiphy = hw->wiphy; 2778 hw_req->req.no_cck = false; /* XXX */ 2779 #if 0 2780 /* This seems to pessimise default scanning behaviour. */ 2781 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2782 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2783 #endif 2784 #ifdef __notyet__ 2785 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2786 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2787 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2788 #endif 2789 eth_broadcast_addr(hw_req->req.bssid); 2790 2791 hw_req->req.n_channels = nchan; 2792 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2793 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2794 for (i = 0; i < nchan; i++) { 2795 *(cpp + i) = 2796 (struct linuxkpi_ieee80211_channel *)(lc + i); 2797 } 2798 for (i = 0; i < nchan; i++) { 2799 c = ss->ss_chans[ss->ss_next + i]; 2800 2801 lc->hw_value = c->ic_ieee; 2802 lc->center_freq = c->ic_freq; /* XXX */ 2803 /* lc->flags */ 2804 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2805 lc->max_power = c->ic_maxpower; 2806 /* lc-> ... */ 2807 lc++; 2808 } 2809 2810 hw_req->req.n_ssids = ssid_count; 2811 if (hw_req->req.n_ssids > 0) { 2812 ssids = (struct cfg80211_ssid *)lc; 2813 hw_req->req.ssids = ssids; 2814 for (i = 0; i < ssid_count; i++) { 2815 ssids->ssid_len = ss->ss_ssid[i].len; 2816 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2817 ss->ss_ssid[i].len); 2818 ssids++; 2819 } 2820 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2821 } else { 2822 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2823 } 2824 2825 /* 6GHz one day. */ 2826 hw_req->req.n_6ghz_params = 0; 2827 hw_req->req.scan_6ghz_params = NULL; 2828 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2829 /* s6gp->... */ 2830 2831 ie = ieend = (uint8_t *)s6gp; 2832 /* Copy per-band IEs, copy common IEs */ 2833 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2834 hw_req->req.ie = ie; 2835 hw_req->req.ie_len = ieend - ie; 2836 2837 lvif = VAP_TO_LVIF(vap); 2838 vif = LVIF_TO_VIF(lvif); 2839 2840 LKPI_80211_LHW_SCAN_LOCK(lhw); 2841 /* Re-check under lock. */ 2842 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2843 if (!running) { 2844 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2845 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2846 2847 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 2848 lhw->hw_req = hw_req; 2849 } 2850 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2851 if (running) { 2852 free(hw_req, M_LKPI80211); 2853 return; 2854 } 2855 2856 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2857 if (error != 0) { 2858 ieee80211_cancel_scan(vap); 2859 2860 /* 2861 * ieee80211_scan_completed must be called in either 2862 * case of error or none. So let the free happen there 2863 * and only there. 2864 * That would be fine in theory but in practice drivers 2865 * behave differently: 2866 * ath10k does not return hw_scan until after scan_complete 2867 * and can then still return an error. 2868 * rtw88 can return 1 or -EBUSY without scan_complete 2869 * iwlwifi can return various errors before scan starts 2870 * ... 2871 * So we cannot rely on that behaviour and have to check 2872 * and balance between both code paths. 2873 */ 2874 LKPI_80211_LHW_SCAN_LOCK(lhw); 2875 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2876 free(lhw->hw_req, M_LKPI80211); 2877 lhw->hw_req = NULL; 2878 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 2879 } 2880 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2881 2882 /* 2883 * XXX-SIGH magic number. 2884 * rtw88 has a magic "return 1" if offloading scan is 2885 * not possible. Fall back to sw scan in that case. 2886 */ 2887 if (error == 1) { 2888 LKPI_80211_LHW_SCAN_LOCK(lhw); 2889 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 2890 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2891 /* 2892 * XXX If we clear this now and later a driver 2893 * thinks it * can do a hw_scan again, we will 2894 * currently not re-enable it? 2895 */ 2896 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2897 ieee80211_start_scan(vap, 2898 IEEE80211_SCAN_ACTIVE | 2899 IEEE80211_SCAN_NOPICK | 2900 IEEE80211_SCAN_ONCE, 2901 IEEE80211_SCAN_FOREVER, 2902 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2903 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2904 vap->iv_des_nssid, vap->iv_des_ssid); 2905 goto sw_scan; 2906 } 2907 2908 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2909 __func__, error); 2910 } 2911 } 2912 } 2913 2914 static void 2915 lkpi_ic_scan_end(struct ieee80211com *ic) 2916 { 2917 struct lkpi_hw *lhw; 2918 bool is_hw_scan; 2919 2920 lhw = ic->ic_softc; 2921 LKPI_80211_LHW_SCAN_LOCK(lhw); 2922 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 2923 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2924 return; 2925 } 2926 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2927 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2928 2929 if (!is_hw_scan) { 2930 struct ieee80211_scan_state *ss; 2931 struct ieee80211vap *vap; 2932 struct ieee80211_hw *hw; 2933 struct lkpi_vif *lvif; 2934 struct ieee80211_vif *vif; 2935 2936 ss = ic->ic_scan; 2937 vap = ss->ss_vap; 2938 hw = LHW_TO_HW(lhw); 2939 lvif = VAP_TO_LVIF(vap); 2940 vif = LVIF_TO_VIF(lvif); 2941 2942 lkpi_80211_mo_sw_scan_complete(hw, vif); 2943 2944 /* Send PS to stop buffering if n80211 does not for us? */ 2945 2946 if (vap->iv_state == IEEE80211_S_SCAN) 2947 lkpi_hw_conf_idle(hw, true); 2948 } 2949 } 2950 2951 static void 2952 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 2953 unsigned long maxdwell) 2954 { 2955 struct lkpi_hw *lhw; 2956 bool is_hw_scan; 2957 2958 lhw = ss->ss_ic->ic_softc; 2959 LKPI_80211_LHW_SCAN_LOCK(lhw); 2960 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2961 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2962 if (!is_hw_scan) 2963 lhw->ic_scan_curchan(ss, maxdwell); 2964 } 2965 2966 static void 2967 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 2968 { 2969 struct lkpi_hw *lhw; 2970 bool is_hw_scan; 2971 2972 lhw = ss->ss_ic->ic_softc; 2973 LKPI_80211_LHW_SCAN_LOCK(lhw); 2974 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2975 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2976 if (!is_hw_scan) 2977 lhw->ic_scan_mindwell(ss); 2978 } 2979 2980 static void 2981 lkpi_ic_set_channel(struct ieee80211com *ic) 2982 { 2983 struct lkpi_hw *lhw; 2984 struct ieee80211_hw *hw; 2985 struct ieee80211_channel *c; 2986 struct linuxkpi_ieee80211_channel *chan; 2987 int error; 2988 bool hw_scan_running; 2989 2990 lhw = ic->ic_softc; 2991 2992 /* If we do not support (*config)() save us the work. */ 2993 if (lhw->ops->config == NULL) 2994 return; 2995 2996 /* If we have a hw_scan running do not switch channels. */ 2997 LKPI_80211_LHW_SCAN_LOCK(lhw); 2998 hw_scan_running = 2999 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3000 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3001 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3002 if (hw_scan_running) 3003 return; 3004 3005 c = ic->ic_curchan; 3006 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3007 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3008 c, lhw->ops->config); 3009 return; 3010 } 3011 3012 chan = lkpi_find_lkpi80211_chan(lhw, c); 3013 if (chan == NULL) { 3014 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3015 c, chan); 3016 return; 3017 } 3018 3019 /* XXX max power for scanning? */ 3020 IMPROVE(); 3021 3022 hw = LHW_TO_HW(lhw); 3023 cfg80211_chandef_create(&hw->conf.chandef, chan, 3024 NL80211_CHAN_NO_HT); 3025 3026 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3027 if (error != 0 && error != EOPNOTSUPP) { 3028 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3029 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3030 /* XXX should we unroll to the previous chandef? */ 3031 IMPROVE(); 3032 } else { 3033 /* Update radiotap channels as well. */ 3034 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3035 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3036 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3037 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3038 } 3039 3040 /* Currently PS is hard coded off! Not sure it belongs here. */ 3041 IMPROVE(); 3042 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3043 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3044 hw->conf.flags &= ~IEEE80211_CONF_PS; 3045 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3046 if (error != 0 && error != EOPNOTSUPP) 3047 ic_printf(ic, "ERROR: %s: config %#0x returned " 3048 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3049 error); 3050 } 3051 } 3052 3053 static struct ieee80211_node * 3054 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3055 const uint8_t mac[IEEE80211_ADDR_LEN]) 3056 { 3057 struct ieee80211com *ic; 3058 struct lkpi_hw *lhw; 3059 struct ieee80211_node *ni; 3060 struct ieee80211_hw *hw; 3061 struct lkpi_sta *lsta; 3062 3063 ic = vap->iv_ic; 3064 lhw = ic->ic_softc; 3065 3066 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3067 if (lhw->ic_node_alloc == NULL) 3068 return (NULL); 3069 3070 ni = lhw->ic_node_alloc(vap, mac); 3071 if (ni == NULL) 3072 return (NULL); 3073 3074 hw = LHW_TO_HW(lhw); 3075 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3076 if (lsta == NULL) { 3077 if (lhw->ic_node_free != NULL) 3078 lhw->ic_node_free(ni); 3079 return (NULL); 3080 } 3081 3082 return (ni); 3083 } 3084 3085 static int 3086 lkpi_ic_node_init(struct ieee80211_node *ni) 3087 { 3088 struct ieee80211com *ic; 3089 struct lkpi_hw *lhw; 3090 struct lkpi_sta *lsta; 3091 int error; 3092 3093 ic = ni->ni_ic; 3094 lhw = ic->ic_softc; 3095 3096 if (lhw->ic_node_init != NULL) { 3097 error = lhw->ic_node_init(ni); 3098 if (error != 0) 3099 return (error); 3100 } 3101 3102 lsta = ni->ni_drv_data; 3103 3104 /* Now take the reference before linking it to the table. */ 3105 lsta->ni = ieee80211_ref_node(ni); 3106 3107 /* XXX-BZ Sync other state over. */ 3108 IMPROVE(); 3109 3110 return (0); 3111 } 3112 3113 static void 3114 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3115 { 3116 struct ieee80211com *ic; 3117 struct lkpi_hw *lhw; 3118 3119 ic = ni->ni_ic; 3120 lhw = ic->ic_softc; 3121 3122 /* XXX-BZ remove from driver, ... */ 3123 IMPROVE(); 3124 3125 if (lhw->ic_node_cleanup != NULL) 3126 lhw->ic_node_cleanup(ni); 3127 } 3128 3129 static void 3130 lkpi_ic_node_free(struct ieee80211_node *ni) 3131 { 3132 struct ieee80211com *ic; 3133 struct lkpi_hw *lhw; 3134 struct lkpi_sta *lsta; 3135 3136 ic = ni->ni_ic; 3137 lhw = ic->ic_softc; 3138 lsta = ni->ni_drv_data; 3139 if (lsta == NULL) 3140 goto out; 3141 3142 /* XXX-BZ free resources, ... */ 3143 IMPROVE(); 3144 3145 /* Flush mbufq (make sure to release ni refs!). */ 3146 #ifdef __notyet__ 3147 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 3148 __func__, lsta, mbufq_len(&lsta->txq))); 3149 #endif 3150 /* Drain taskq. */ 3151 3152 /* Drain sta->txq[] */ 3153 mtx_destroy(&lsta->txq_mtx); 3154 3155 /* Remove lsta if added_to_drv. */ 3156 3157 /* Remove lsta from vif */ 3158 /* Remove ref from lsta node... */ 3159 /* Free lsta. */ 3160 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 3161 3162 out: 3163 if (lhw->ic_node_free != NULL) 3164 lhw->ic_node_free(ni); 3165 } 3166 3167 static int 3168 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3169 const struct ieee80211_bpf_params *params __unused) 3170 { 3171 struct lkpi_sta *lsta; 3172 3173 lsta = ni->ni_drv_data; 3174 3175 /* Queue the packet and enqueue the task to handle it. */ 3176 LKPI_80211_LSTA_LOCK(lsta); 3177 mbufq_enqueue(&lsta->txq, m); 3178 LKPI_80211_LSTA_UNLOCK(lsta); 3179 3180 #ifdef LINUXKPI_DEBUG_80211 3181 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3182 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3183 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3184 mbufq_len(&lsta->txq)); 3185 #endif 3186 3187 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3188 return (0); 3189 } 3190 3191 static void 3192 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3193 { 3194 struct ieee80211_node *ni; 3195 #ifndef LKPI_80211_HW_CRYPTO 3196 struct ieee80211_frame *wh; 3197 #endif 3198 struct ieee80211_key *k; 3199 struct sk_buff *skb; 3200 struct ieee80211com *ic; 3201 struct lkpi_hw *lhw; 3202 struct ieee80211_hw *hw; 3203 struct lkpi_vif *lvif; 3204 struct ieee80211_vif *vif; 3205 struct ieee80211_channel *c; 3206 struct ieee80211_tx_control control; 3207 struct ieee80211_tx_info *info; 3208 struct ieee80211_sta *sta; 3209 struct ieee80211_hdr *hdr; 3210 void *buf; 3211 uint8_t ac, tid; 3212 3213 M_ASSERTPKTHDR(m); 3214 #ifdef LINUXKPI_DEBUG_80211 3215 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3216 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3217 #endif 3218 3219 ni = lsta->ni; 3220 k = NULL; 3221 #ifndef LKPI_80211_HW_CRYPTO 3222 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3223 wh = mtod(m, struct ieee80211_frame *); 3224 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3225 /* Retrieve key for TX && do software encryption. */ 3226 k = ieee80211_crypto_encap(ni, m); 3227 if (k == NULL) { 3228 ieee80211_free_node(ni); 3229 m_freem(m); 3230 return; 3231 } 3232 } 3233 #endif 3234 3235 ic = ni->ni_ic; 3236 lhw = ic->ic_softc; 3237 hw = LHW_TO_HW(lhw); 3238 c = ni->ni_chan; 3239 3240 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3241 struct lkpi_radiotap_tx_hdr *rtap; 3242 3243 rtap = &lhw->rtap_tx; 3244 rtap->wt_flags = 0; 3245 if (k != NULL) 3246 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3247 if (m->m_flags & M_FRAG) 3248 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3249 IMPROVE(); 3250 rtap->wt_rate = 0; 3251 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3252 rtap->wt_chan_freq = htole16(c->ic_freq); 3253 rtap->wt_chan_flags = htole16(c->ic_flags); 3254 } 3255 3256 ieee80211_radiotap_tx(ni->ni_vap, m); 3257 } 3258 3259 /* 3260 * net80211 should handle hw->extra_tx_headroom. 3261 * Though for as long as we are copying we don't mind. 3262 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3263 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3264 */ 3265 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3266 if (skb == NULL) { 3267 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3268 ieee80211_free_node(ni); 3269 m_freem(m); 3270 return; 3271 } 3272 skb_reserve(skb, hw->extra_tx_headroom); 3273 3274 /* XXX-BZ we need a SKB version understanding mbuf. */ 3275 /* Save the mbuf for ieee80211_tx_complete(). */ 3276 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3277 skb->m = m; 3278 #if 0 3279 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3280 #else 3281 buf = skb_put(skb, m->m_pkthdr.len); 3282 m_copydata(m, 0, m->m_pkthdr.len, buf); 3283 #endif 3284 /* Save the ni. */ 3285 m->m_pkthdr.PH_loc.ptr = ni; 3286 3287 lvif = VAP_TO_LVIF(ni->ni_vap); 3288 vif = LVIF_TO_VIF(lvif); 3289 3290 hdr = (void *)skb->data; 3291 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3292 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3293 skb->priority = 0; 3294 ac = IEEE80211_AC_BE; 3295 } else { 3296 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3297 ac = ieee80211e_up_to_ac[tid & 7]; 3298 } 3299 skb_set_queue_mapping(skb, ac); 3300 3301 info = IEEE80211_SKB_CB(skb); 3302 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3303 /* Slight delay; probably only happens on scanning so fine? */ 3304 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3305 c = ic->ic_curchan; 3306 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3307 info->hw_queue = vif->hw_queue[ac]; 3308 if (m->m_flags & M_EAPOL) 3309 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3310 info->control.vif = vif; 3311 /* XXX-BZ info->control.rates */ 3312 3313 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3314 if (lsta != NULL) { 3315 sta = LSTA_TO_STA(lsta); 3316 #ifdef LKPI_80211_HW_CRYPTO 3317 info->control.hw_key = lsta->kc; 3318 #endif 3319 } else { 3320 sta = NULL; 3321 } 3322 3323 IMPROVE(); 3324 3325 if (sta != NULL) { 3326 struct lkpi_txq *ltxq; 3327 3328 ltxq = NULL; 3329 if (!ieee80211_is_data_present(hdr->frame_control)) { 3330 if (vif->type == NL80211_IFTYPE_STATION && 3331 lsta->added_to_drv && 3332 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3333 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3334 } else if (lsta->added_to_drv && 3335 sta->txq[skb->priority] != NULL) { 3336 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3337 } 3338 if (ltxq == NULL) 3339 goto ops_tx; 3340 3341 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3342 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3343 3344 skb_queue_tail(<xq->skbq, skb); 3345 #ifdef LINUXKPI_DEBUG_80211 3346 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3347 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3348 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3349 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3350 __func__, __LINE__, 3351 curthread->td_tid, (unsigned int)ticks, 3352 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3353 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3354 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3355 #endif 3356 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3357 return; 3358 } 3359 3360 ops_tx: 3361 #ifdef LINUXKPI_DEBUG_80211 3362 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3363 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3364 "TX ac %d prio %u qmap %u\n", 3365 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3366 skb, ac, skb->priority, skb->qmap); 3367 #endif 3368 memset(&control, 0, sizeof(control)); 3369 control.sta = sta; 3370 3371 lkpi_80211_mo_tx(hw, &control, skb); 3372 return; 3373 } 3374 3375 static void 3376 lkpi_80211_txq_task(void *ctx, int pending) 3377 { 3378 struct lkpi_sta *lsta; 3379 struct mbufq mq; 3380 struct mbuf *m; 3381 3382 lsta = ctx; 3383 3384 #ifdef LINUXKPI_DEBUG_80211 3385 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3386 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3387 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3388 pending, mbufq_len(&lsta->txq)); 3389 #endif 3390 3391 mbufq_init(&mq, IFQ_MAXLEN); 3392 3393 LKPI_80211_LSTA_LOCK(lsta); 3394 mbufq_concat(&mq, &lsta->txq); 3395 LKPI_80211_LSTA_UNLOCK(lsta); 3396 3397 m = mbufq_dequeue(&mq); 3398 while (m != NULL) { 3399 lkpi_80211_txq_tx_one(lsta, m); 3400 m = mbufq_dequeue(&mq); 3401 } 3402 } 3403 3404 static int 3405 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3406 { 3407 3408 /* XXX TODO */ 3409 IMPROVE(); 3410 3411 /* Quick and dirty cheating hack. */ 3412 struct ieee80211_node *ni; 3413 3414 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3415 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3416 } 3417 3418 static void 3419 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3420 int *n, struct ieee80211_channel *c) 3421 { 3422 struct lkpi_hw *lhw; 3423 struct ieee80211_hw *hw; 3424 struct linuxkpi_ieee80211_channel *channels; 3425 uint8_t bands[IEEE80211_MODE_BYTES]; 3426 int chan_flags, error, i, nchans; 3427 3428 /* Channels */ 3429 lhw = ic->ic_softc; 3430 hw = LHW_TO_HW(lhw); 3431 3432 /* NL80211_BAND_2GHZ */ 3433 nchans = 0; 3434 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3435 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3436 if (nchans > 0) { 3437 memset(bands, 0, sizeof(bands)); 3438 chan_flags = 0; 3439 setbit(bands, IEEE80211_MODE_11B); 3440 /* XXX-BZ unclear how to check for 11g. */ 3441 setbit(bands, IEEE80211_MODE_11G); 3442 #ifdef __notyet__ 3443 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3444 setbit(bands, IEEE80211_MODE_11NG); 3445 chan_flags |= NET80211_CBW_FLAG_HT40; 3446 } 3447 #endif 3448 3449 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3450 for (i = 0; i < nchans && *n < maxchan; i++) { 3451 uint32_t nflags = 0; 3452 int cflags = chan_flags; 3453 3454 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3455 ic_printf(ic, "%s: Skipping disabled chan " 3456 "[%u/%u/%#x]\n", __func__, 3457 channels[i].hw_value, 3458 channels[i].center_freq, channels[i].flags); 3459 continue; 3460 } 3461 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3462 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3463 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3464 nflags |= IEEE80211_CHAN_DFS; 3465 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3466 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3467 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3468 cflags &= ~NET80211_CBW_FLAG_VHT80; 3469 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3470 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3471 cflags &= ~NET80211_CBW_FLAG_HT40; 3472 3473 error = ieee80211_add_channel_cbw(c, maxchan, n, 3474 channels[i].hw_value, channels[i].center_freq, 3475 channels[i].max_power, 3476 nflags, bands, chan_flags); 3477 /* net80211::ENOBUFS: *n >= maxchans */ 3478 if (error != 0 && error != ENOBUFS) 3479 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3480 "returned error %d\n", 3481 __func__, channels[i].hw_value, 3482 channels[i].center_freq, channels[i].flags, 3483 nflags, chan_flags, cflags, error); 3484 if (error != 0) 3485 break; 3486 } 3487 } 3488 3489 /* NL80211_BAND_5GHZ */ 3490 nchans = 0; 3491 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3492 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3493 if (nchans > 0) { 3494 memset(bands, 0, sizeof(bands)); 3495 chan_flags = 0; 3496 setbit(bands, IEEE80211_MODE_11A); 3497 #ifdef __not_yet__ 3498 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3499 setbit(bands, IEEE80211_MODE_11NA); 3500 chan_flags |= NET80211_CBW_FLAG_HT40; 3501 } 3502 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3503 3504 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3505 ic->ic_vhtcaps = 3506 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3507 3508 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3509 chan_flags |= NET80211_CBW_FLAG_VHT80; 3510 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3511 ic->ic_vhtcaps)) 3512 chan_flags |= NET80211_CBW_FLAG_VHT160; 3513 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3514 ic->ic_vhtcaps)) 3515 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3516 } 3517 #endif 3518 3519 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3520 for (i = 0; i < nchans && *n < maxchan; i++) { 3521 uint32_t nflags = 0; 3522 int cflags = chan_flags; 3523 3524 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3525 ic_printf(ic, "%s: Skipping disabled chan " 3526 "[%u/%u/%#x]\n", __func__, 3527 channels[i].hw_value, 3528 channels[i].center_freq, channels[i].flags); 3529 continue; 3530 } 3531 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3532 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3533 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3534 nflags |= IEEE80211_CHAN_DFS; 3535 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3536 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3537 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3538 cflags &= ~NET80211_CBW_FLAG_VHT80; 3539 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3540 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3541 cflags &= ~NET80211_CBW_FLAG_HT40; 3542 3543 error = ieee80211_add_channel_cbw(c, maxchan, n, 3544 channels[i].hw_value, channels[i].center_freq, 3545 channels[i].max_power, 3546 nflags, bands, chan_flags); 3547 /* net80211::ENOBUFS: *n >= maxchans */ 3548 if (error != 0 && error != ENOBUFS) 3549 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3550 "returned error %d\n", 3551 __func__, channels[i].hw_value, 3552 channels[i].center_freq, channels[i].flags, 3553 nflags, chan_flags, cflags, error); 3554 if (error != 0) 3555 break; 3556 } 3557 } 3558 } 3559 3560 static void * 3561 lkpi_ieee80211_ifalloc(void) 3562 { 3563 struct ieee80211com *ic; 3564 3565 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3566 if (ic == NULL) 3567 return (NULL); 3568 3569 /* Setting these happens later when we have device information. */ 3570 ic->ic_softc = NULL; 3571 ic->ic_name = "linuxkpi"; 3572 3573 return (ic); 3574 } 3575 3576 struct ieee80211_hw * 3577 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3578 { 3579 struct ieee80211_hw *hw; 3580 struct lkpi_hw *lhw; 3581 struct wiphy *wiphy; 3582 int ac; 3583 3584 /* Get us and the driver data also allocated. */ 3585 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3586 if (wiphy == NULL) 3587 return (NULL); 3588 3589 lhw = wiphy_priv(wiphy); 3590 lhw->ops = ops; 3591 3592 LKPI_80211_LHW_LOCK_INIT(lhw); 3593 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 3594 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3595 TAILQ_INIT(&lhw->lvif_head); 3596 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3597 lhw->txq_generation[ac] = 1; 3598 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 3599 } 3600 3601 /* 3602 * XXX-BZ TODO make sure there is a "_null" function to all ops 3603 * not initialized. 3604 */ 3605 hw = LHW_TO_HW(lhw); 3606 hw->wiphy = wiphy; 3607 hw->conf.flags |= IEEE80211_CONF_IDLE; 3608 hw->priv = (void *)(lhw + 1); 3609 3610 /* BSD Specific. */ 3611 lhw->ic = lkpi_ieee80211_ifalloc(); 3612 if (lhw->ic == NULL) { 3613 ieee80211_free_hw(hw); 3614 return (NULL); 3615 } 3616 3617 IMPROVE(); 3618 3619 return (hw); 3620 } 3621 3622 void 3623 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3624 { 3625 struct lkpi_hw *lhw; 3626 3627 lhw = HW_TO_LHW(hw); 3628 free(lhw->ic, M_LKPI80211); 3629 lhw->ic = NULL; 3630 3631 /* Cleanup more of lhw here or in wiphy_free()? */ 3632 sx_destroy(&lhw->lvif_sx); 3633 LKPI_80211_LHW_LOCK_DESTROY(lhw); 3634 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 3635 IMPROVE(); 3636 } 3637 3638 void 3639 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3640 { 3641 struct lkpi_hw *lhw; 3642 struct ieee80211com *ic; 3643 3644 lhw = HW_TO_LHW(hw); 3645 ic = lhw->ic; 3646 3647 /* Now set a proper name before ieee80211_ifattach(). */ 3648 ic->ic_softc = lhw; 3649 ic->ic_name = name; 3650 3651 /* XXX-BZ do we also need to set wiphy name? */ 3652 } 3653 3654 struct ieee80211_hw * 3655 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3656 { 3657 struct lkpi_hw *lhw; 3658 3659 lhw = wiphy_priv(wiphy); 3660 return (LHW_TO_HW(lhw)); 3661 } 3662 3663 static void 3664 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3665 { 3666 struct ieee80211com *ic; 3667 3668 ic = lhw->ic; 3669 ieee80211_radiotap_attach(ic, 3670 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3671 LKPI_RTAP_TX_FLAGS_PRESENT, 3672 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3673 LKPI_RTAP_RX_FLAGS_PRESENT); 3674 } 3675 3676 int 3677 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3678 { 3679 struct ieee80211com *ic; 3680 struct lkpi_hw *lhw; 3681 int band, i; 3682 3683 lhw = HW_TO_LHW(hw); 3684 ic = lhw->ic; 3685 3686 /* We do it this late as wiphy->dev should be set for the name. */ 3687 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3688 if (lhw->workq == NULL) 3689 return (-EAGAIN); 3690 3691 /* XXX-BZ figure this out how they count his... */ 3692 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3693 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3694 hw->wiphy->perm_addr); 3695 } else if (hw->wiphy->n_addresses > 0) { 3696 /* We take the first one. */ 3697 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3698 hw->wiphy->addresses[0].addr); 3699 } else { 3700 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3701 } 3702 3703 #ifdef __not_yet__ 3704 /* See comment in lkpi_80211_txq_tx_one(). */ 3705 ic->ic_headroom = hw->extra_tx_headroom; 3706 #endif 3707 3708 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3709 ic->ic_opmode = IEEE80211_M_STA; 3710 3711 /* Set device capabilities. */ 3712 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3713 ic->ic_caps = 3714 IEEE80211_C_STA | 3715 IEEE80211_C_MONITOR | 3716 IEEE80211_C_WPA | /* WPA/RSN */ 3717 #ifdef LKPI_80211_WME 3718 IEEE80211_C_WME | 3719 #endif 3720 #if 0 3721 IEEE80211_C_PMGT | 3722 #endif 3723 IEEE80211_C_SHSLOT | /* short slot time supported */ 3724 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3725 ; 3726 #if 0 3727 /* Scanning is a different kind of beast to re-work. */ 3728 ic->ic_caps |= IEEE80211_C_BGSCAN; 3729 #endif 3730 if (lhw->ops->hw_scan) { 3731 /* 3732 * Advertise full-offload scanning. 3733 * 3734 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3735 * we essentially disable hw_scan for all drivers not setting 3736 * the flag. 3737 */ 3738 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3739 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 3740 } 3741 3742 #ifdef __notyet__ 3743 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3744 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3745 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3746 | IEEE80211_HTCAP_MAXAMSDU_3839 3747 /* max A-MSDU length */ 3748 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3749 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3750 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3751 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3752 #endif 3753 3754 /* 3755 * The wiphy variables report bitmasks of avail antennas. 3756 * (*get_antenna) get the current bitmask sets which can be 3757 * altered by (*set_antenna) for some drivers. 3758 * XXX-BZ will the count alone do us much good long-term in net80211? 3759 */ 3760 if (hw->wiphy->available_antennas_rx || 3761 hw->wiphy->available_antennas_tx) { 3762 uint32_t rxs, txs; 3763 3764 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 3765 ic->ic_rxstream = bitcount32(rxs); 3766 ic->ic_txstream = bitcount32(txs); 3767 } 3768 } 3769 3770 ic->ic_cryptocaps = 0; 3771 #ifdef LKPI_80211_HW_CRYPTO 3772 if (hw->wiphy->n_cipher_suites > 0) { 3773 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3774 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3775 hw->wiphy->cipher_suites[i]); 3776 } 3777 #endif 3778 3779 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3780 ic->ic_channels); 3781 3782 ieee80211_ifattach(ic); 3783 3784 ic->ic_update_mcast = lkpi_ic_update_mcast; 3785 ic->ic_update_promisc = lkpi_ic_update_promisc; 3786 ic->ic_update_chw = lkpi_ic_update_chw; 3787 ic->ic_parent = lkpi_ic_parent; 3788 ic->ic_scan_start = lkpi_ic_scan_start; 3789 ic->ic_scan_end = lkpi_ic_scan_end; 3790 ic->ic_set_channel = lkpi_ic_set_channel; 3791 ic->ic_transmit = lkpi_ic_transmit; 3792 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3793 ic->ic_vap_create = lkpi_ic_vap_create; 3794 ic->ic_vap_delete = lkpi_ic_vap_delete; 3795 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3796 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3797 3798 lhw->ic_scan_curchan = ic->ic_scan_curchan; 3799 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 3800 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 3801 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 3802 3803 lhw->ic_node_alloc = ic->ic_node_alloc; 3804 ic->ic_node_alloc = lkpi_ic_node_alloc; 3805 lhw->ic_node_init = ic->ic_node_init; 3806 ic->ic_node_init = lkpi_ic_node_init; 3807 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3808 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3809 lhw->ic_node_free = ic->ic_node_free; 3810 ic->ic_node_free = lkpi_ic_node_free; 3811 3812 lkpi_radiotap_attach(lhw); 3813 3814 /* 3815 * Assign the first possible channel for now; seems Realtek drivers 3816 * expect one. 3817 * Also remember the amount of bands we support and the most rates 3818 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3819 */ 3820 lhw->supbands = lhw->max_rates = 0; 3821 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3822 struct ieee80211_supported_band *supband; 3823 struct linuxkpi_ieee80211_channel *channels; 3824 3825 supband = hw->wiphy->bands[band]; 3826 if (supband == NULL || supband->n_channels == 0) 3827 continue; 3828 3829 lhw->supbands++; 3830 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3831 3832 /* If we have a channel, we need to keep counting supbands. */ 3833 if (hw->conf.chandef.chan != NULL) 3834 continue; 3835 3836 channels = supband->channels; 3837 for (i = 0; i < supband->n_channels; i++) { 3838 3839 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3840 continue; 3841 3842 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3843 NL80211_CHAN_NO_HT); 3844 break; 3845 } 3846 } 3847 3848 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3849 3850 /* Make sure we do not support more than net80211 is willing to take. */ 3851 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3852 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3853 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3854 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3855 } 3856 3857 /* 3858 * The maximum supported bitrates on any band + size for 3859 * DSSS Parameter Set give our per-band IE size. 3860 * XXX-BZ FIXME add HT VHT ... later 3861 * SSID is the responsibility of the driver and goes on the side. 3862 * The user specified bits coming from the vap go into the 3863 * "common ies" fields. 3864 */ 3865 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3866 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3867 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3868 /* 3869 * net80211 does not seem to support the DSSS Parameter Set but some of 3870 * the drivers insert it so calculate the extra fixed space in. 3871 */ 3872 lhw->scan_ie_len += 2 + 1; 3873 3874 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3875 if (hw->wiphy->max_scan_ie_len > 0) 3876 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3877 3878 if (bootverbose) 3879 ieee80211_announce(ic); 3880 3881 return (0); 3882 } 3883 3884 void 3885 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3886 { 3887 struct lkpi_hw *lhw; 3888 struct ieee80211com *ic; 3889 3890 lhw = HW_TO_LHW(hw); 3891 ic = lhw->ic; 3892 ieee80211_ifdetach(ic); 3893 } 3894 3895 void 3896 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3897 enum ieee80211_iface_iter flags, 3898 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3899 void *arg) 3900 { 3901 struct lkpi_hw *lhw; 3902 struct lkpi_vif *lvif; 3903 struct ieee80211_vif *vif; 3904 bool active, atomic, nin_drv; 3905 3906 lhw = HW_TO_LHW(hw); 3907 3908 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3909 IEEE80211_IFACE_ITER_RESUME_ALL| 3910 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3911 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3912 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3913 __func__, flags); 3914 } 3915 3916 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 3917 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3918 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3919 3920 if (atomic) 3921 LKPI_80211_LHW_LVIF_LOCK(lhw); 3922 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3923 struct ieee80211vap *vap; 3924 3925 vif = LVIF_TO_VIF(lvif); 3926 3927 /* 3928 * If we want "active" interfaces, we need to distinguish on 3929 * whether the driver knows about them or not to be able to 3930 * handle the "resume" case correctly. Skip the ones the 3931 * driver does not know about. 3932 */ 3933 if (active && !lvif->added_to_drv && 3934 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3935 continue; 3936 3937 /* 3938 * If we shall skip interfaces not added to the driver do so 3939 * if we haven't yet. 3940 */ 3941 if (nin_drv && !lvif->added_to_drv) 3942 continue; 3943 3944 /* 3945 * Run the iterator function if we are either not asking 3946 * asking for active only or if the VAP is "running". 3947 */ 3948 /* XXX-BZ probably should have state in the lvif as well. */ 3949 vap = LVIF_TO_VAP(lvif); 3950 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3951 iterfunc(arg, vif->addr, vif); 3952 } 3953 if (atomic) 3954 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3955 } 3956 3957 void 3958 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3959 struct ieee80211_vif *vif, 3960 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3961 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3962 void *arg) 3963 { 3964 3965 UNIMPLEMENTED; 3966 } 3967 3968 void 3969 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3970 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3971 void *), 3972 void *arg) 3973 { 3974 struct lkpi_hw *lhw; 3975 struct lkpi_vif *lvif; 3976 struct ieee80211_vif *vif; 3977 struct lkpi_chanctx *lchanctx; 3978 3979 KASSERT(hw != NULL && iterfunc != NULL, 3980 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3981 3982 lhw = HW_TO_LHW(hw); 3983 3984 IMPROVE("lchanctx should be its own list somewhere"); 3985 3986 LKPI_80211_LHW_LVIF_LOCK(lhw); 3987 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3988 3989 vif = LVIF_TO_VIF(lvif); 3990 if (vif->chanctx_conf == NULL) 3991 continue; 3992 3993 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 3994 if (!lchanctx->added_to_drv) 3995 continue; 3996 3997 iterfunc(hw, &lchanctx->conf, arg); 3998 } 3999 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4000 } 4001 4002 void 4003 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4004 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4005 { 4006 struct lkpi_hw *lhw; 4007 struct lkpi_vif *lvif; 4008 struct lkpi_sta *lsta; 4009 struct ieee80211_sta *sta; 4010 4011 KASSERT(hw != NULL && iterfunc != NULL, 4012 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4013 4014 lhw = HW_TO_LHW(hw); 4015 4016 LKPI_80211_LHW_LVIF_LOCK(lhw); 4017 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4018 4019 LKPI_80211_LVIF_LOCK(lvif); 4020 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4021 if (!lsta->added_to_drv) 4022 continue; 4023 sta = LSTA_TO_STA(lsta); 4024 iterfunc(arg, sta); 4025 } 4026 LKPI_80211_LVIF_UNLOCK(lvif); 4027 } 4028 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4029 } 4030 4031 struct linuxkpi_ieee80211_regdomain * 4032 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4033 { 4034 struct linuxkpi_ieee80211_regdomain *regd; 4035 4036 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4037 GFP_KERNEL); 4038 return (regd); 4039 } 4040 4041 int 4042 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4043 struct linuxkpi_ieee80211_regdomain *regd) 4044 { 4045 struct lkpi_hw *lhw; 4046 struct ieee80211com *ic; 4047 struct ieee80211_regdomain *rd; 4048 4049 lhw = wiphy_priv(wiphy); 4050 ic = lhw->ic; 4051 4052 rd = &ic->ic_regdomain; 4053 if (rd->isocc[0] == '\0') { 4054 rd->isocc[0] = regd->alpha2[0]; 4055 rd->isocc[1] = regd->alpha2[1]; 4056 } 4057 4058 TODO(); 4059 /* XXX-BZ finish the rest. */ 4060 4061 return (0); 4062 } 4063 4064 void 4065 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4066 struct cfg80211_scan_info *info) 4067 { 4068 struct lkpi_hw *lhw; 4069 struct ieee80211com *ic; 4070 struct ieee80211_scan_state *ss; 4071 4072 lhw = wiphy_priv(hw->wiphy); 4073 ic = lhw->ic; 4074 ss = ic->ic_scan; 4075 4076 ieee80211_scan_done(ss->ss_vap); 4077 4078 LKPI_80211_LHW_SCAN_LOCK(lhw); 4079 free(lhw->hw_req, M_LKPI80211); 4080 lhw->hw_req = NULL; 4081 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4082 wakeup(lhw); 4083 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4084 4085 return; 4086 } 4087 4088 /* For %list see comment towards the end of the function. */ 4089 void 4090 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 4091 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 4092 struct list_head *list __unused) 4093 { 4094 struct epoch_tracker et; 4095 struct lkpi_hw *lhw; 4096 struct ieee80211com *ic; 4097 struct mbuf *m; 4098 struct skb_shared_info *shinfo; 4099 struct ieee80211_rx_status *rx_status; 4100 struct ieee80211_rx_stats rx_stats; 4101 struct ieee80211_node *ni; 4102 struct ieee80211vap *vap; 4103 struct ieee80211_hdr *hdr; 4104 struct lkpi_sta *lsta; 4105 int i, offset, ok; 4106 int8_t rssi; 4107 bool is_beacon; 4108 4109 if (skb->len < 2) { 4110 /* Need 80211 stats here. */ 4111 IMPROVE(); 4112 goto err; 4113 } 4114 4115 /* 4116 * For now do the data copy; we can later improve things. Might even 4117 * have an mbuf backing the skb data then? 4118 */ 4119 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 4120 if (m == NULL) 4121 goto err; 4122 m_copyback(m, 0, skb->tail - skb->data, skb->data); 4123 4124 shinfo = skb_shinfo(skb); 4125 offset = m->m_len; 4126 for (i = 0; i < shinfo->nr_frags; i++) { 4127 m_copyback(m, offset, shinfo->frags[i].size, 4128 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 4129 shinfo->frags[i].offset); 4130 offset += shinfo->frags[i].size; 4131 } 4132 4133 rx_status = IEEE80211_SKB_RXCB(skb); 4134 4135 hdr = (void *)skb->data; 4136 is_beacon = ieee80211_is_beacon(hdr->frame_control); 4137 4138 #ifdef LINUXKPI_DEBUG_80211 4139 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 4140 goto no_trace_beacons; 4141 4142 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4143 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 4144 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 4145 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4146 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4147 shinfo, shinfo->nr_frags, 4148 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4149 4150 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4151 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4152 4153 /* Implement a dump_rxcb() !!! */ 4154 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4155 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4156 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4157 __func__, 4158 (uintmax_t)rx_status->boottime_ns, 4159 (uintmax_t)rx_status->mactime, 4160 rx_status->device_timestamp, 4161 rx_status->flag, 4162 rx_status->freq, 4163 rx_status->bw, 4164 rx_status->encoding, 4165 rx_status->ampdu_reference, 4166 rx_status->band, 4167 rx_status->chains, 4168 rx_status->chain_signal[0], 4169 rx_status->chain_signal[1], 4170 rx_status->chain_signal[2], 4171 rx_status->chain_signal[3], 4172 rx_status->signal, 4173 rx_status->enc_flags, 4174 rx_status->he_dcm, 4175 rx_status->he_gi, 4176 rx_status->he_ru, 4177 rx_status->zero_length_psdu_type, 4178 rx_status->nss, 4179 rx_status->rate_idx); 4180 no_trace_beacons: 4181 #endif 4182 4183 memset(&rx_stats, 0, sizeof(rx_stats)); 4184 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 4185 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 4186 rx_stats.c_nf = -96; 4187 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 4188 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 4189 rssi = rx_status->signal; 4190 else 4191 rssi = rx_stats.c_nf; 4192 /* 4193 * net80211 signal strength data are in .5 dBm units relative to 4194 * the current noise floor (see comment in ieee80211_node.h). 4195 */ 4196 rssi -= rx_stats.c_nf; 4197 rx_stats.c_rssi = rssi * 2; 4198 rx_stats.r_flags |= IEEE80211_R_BAND; 4199 rx_stats.c_band = 4200 lkpi_nl80211_band_to_net80211_band(rx_status->band); 4201 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 4202 rx_stats.c_freq = rx_status->freq; 4203 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 4204 4205 /* XXX (*sta_statistics)() to get to some of that? */ 4206 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 4207 4208 lhw = HW_TO_LHW(hw); 4209 ic = lhw->ic; 4210 4211 ok = ieee80211_add_rx_params(m, &rx_stats); 4212 if (ok == 0) { 4213 m_freem(m); 4214 counter_u64_add(ic->ic_ierrors, 1); 4215 goto err; 4216 } 4217 4218 if (sta != NULL) { 4219 lsta = STA_TO_LSTA(sta); 4220 ni = ieee80211_ref_node(lsta->ni); 4221 } else { 4222 struct ieee80211_frame_min *wh; 4223 4224 wh = mtod(m, struct ieee80211_frame_min *); 4225 ni = ieee80211_find_rxnode(ic, wh); 4226 if (ni != NULL) 4227 lsta = ni->ni_drv_data; 4228 } 4229 4230 if (ni != NULL) 4231 vap = ni->ni_vap; 4232 else 4233 /* 4234 * XXX-BZ can we improve this by looking at the frame hdr 4235 * or other meta-data passed up? 4236 */ 4237 vap = TAILQ_FIRST(&ic->ic_vaps); 4238 4239 #ifdef LINUXKPI_DEBUG_80211 4240 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4241 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 4242 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 4243 ni, vap, is_beacon ? " beacon" : ""); 4244 #endif 4245 4246 if (ni != NULL && vap != NULL && is_beacon && 4247 rx_status->device_timestamp > 0 && 4248 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 4249 struct lkpi_vif *lvif; 4250 struct ieee80211_vif *vif; 4251 struct ieee80211_frame *wh; 4252 4253 wh = mtod(m, struct ieee80211_frame *); 4254 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 4255 goto skip_device_ts; 4256 4257 lvif = VAP_TO_LVIF(vap); 4258 vif = LVIF_TO_VIF(lvif); 4259 4260 IMPROVE("TIMING_BEACON_ONLY?"); 4261 /* mac80211 specific (not net80211) so keep it here. */ 4262 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 4263 /* 4264 * net80211 should take care of the other information (sync_tsf, 4265 * sync_dtim_count) as otherwise we need to parse the beacon. 4266 */ 4267 } 4268 skip_device_ts: 4269 4270 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 4271 ieee80211_radiotap_active_vap(vap)) { 4272 struct lkpi_radiotap_rx_hdr *rtap; 4273 4274 rtap = &lhw->rtap_rx; 4275 rtap->wr_tsft = rx_status->device_timestamp; 4276 rtap->wr_flags = 0; 4277 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 4278 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 4279 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 4280 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 4281 #if 0 /* .. or it does not given we strip it below. */ 4282 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4283 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 4284 #endif 4285 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 4286 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 4287 rtap->wr_rate = 0; 4288 IMPROVE(); 4289 /* XXX TODO status->encoding / rate_index / bw */ 4290 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4291 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4292 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4293 rtap->wr_dbm_antsignal = rssi; 4294 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4295 } 4296 4297 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4298 m_adj(m, -IEEE80211_CRC_LEN); 4299 4300 #if 0 4301 if (list != NULL) { 4302 /* 4303 * Normally this would be queued up and delivered by 4304 * netif_receive_skb_list(), napi_gro_receive(), or the like. 4305 * See mt76::mac80211.c as only current possible consumer. 4306 */ 4307 IMPROVE("we simply pass the packet to net80211 to deal with."); 4308 } 4309 #endif 4310 4311 NET_EPOCH_ENTER(et); 4312 if (ni != NULL) { 4313 ok = ieee80211_input_mimo(ni, m); 4314 ieee80211_free_node(ni); 4315 if (ok < 0) 4316 m_freem(m); 4317 } else { 4318 ok = ieee80211_input_mimo_all(ic, m); 4319 /* mbuf got consumed. */ 4320 } 4321 NET_EPOCH_EXIT(et); 4322 4323 #ifdef LINUXKPI_DEBUG_80211 4324 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4325 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4326 #endif 4327 4328 IMPROVE(); 4329 4330 err: 4331 /* The skb is ours so we can free it :-) */ 4332 kfree_skb(skb); 4333 } 4334 4335 uint8_t 4336 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4337 { 4338 const struct ieee80211_frame *wh; 4339 uint8_t tid; 4340 4341 /* Linux seems to assume this is a QOS-Data-Frame */ 4342 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4343 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4344 hdr->frame_control)); 4345 4346 wh = (const struct ieee80211_frame *)hdr; 4347 tid = ieee80211_gettid(wh); 4348 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4349 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4350 4351 return (tid); 4352 } 4353 4354 struct wiphy * 4355 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4356 { 4357 struct lkpi_wiphy *lwiphy; 4358 4359 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4360 if (lwiphy == NULL) 4361 return (NULL); 4362 lwiphy->ops = ops; 4363 4364 /* XXX TODO */ 4365 return (LWIPHY_TO_WIPHY(lwiphy)); 4366 } 4367 4368 void 4369 linuxkpi_wiphy_free(struct wiphy *wiphy) 4370 { 4371 struct lkpi_wiphy *lwiphy; 4372 4373 if (wiphy == NULL) 4374 return; 4375 4376 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4377 kfree(lwiphy); 4378 } 4379 4380 uint32_t 4381 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4382 enum nl80211_band band) 4383 { 4384 4385 switch (band) { 4386 case NL80211_BAND_2GHZ: 4387 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4388 break; 4389 case NL80211_BAND_5GHZ: 4390 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4391 break; 4392 default: 4393 /* XXX abort, retry, error, panic? */ 4394 break; 4395 } 4396 4397 return (0); 4398 } 4399 4400 uint32_t 4401 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4402 { 4403 4404 return (ieee80211_mhz2ieee(freq, 0)); 4405 } 4406 4407 static struct lkpi_sta * 4408 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4409 { 4410 struct lkpi_sta *lsta, *temp; 4411 4412 LKPI_80211_LVIF_LOCK(lvif); 4413 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4414 if (lsta->ni == ni) { 4415 LKPI_80211_LVIF_UNLOCK(lvif); 4416 return (lsta); 4417 } 4418 } 4419 LKPI_80211_LVIF_UNLOCK(lvif); 4420 4421 return (NULL); 4422 } 4423 4424 struct ieee80211_sta * 4425 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4426 { 4427 struct lkpi_vif *lvif; 4428 struct lkpi_sta *lsta, *temp; 4429 struct ieee80211_sta *sta; 4430 4431 lvif = VIF_TO_LVIF(vif); 4432 4433 LKPI_80211_LVIF_LOCK(lvif); 4434 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4435 sta = LSTA_TO_STA(lsta); 4436 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4437 LKPI_80211_LVIF_UNLOCK(lvif); 4438 return (sta); 4439 } 4440 } 4441 LKPI_80211_LVIF_UNLOCK(lvif); 4442 return (NULL); 4443 } 4444 4445 struct ieee80211_sta * 4446 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4447 const uint8_t *addr, const uint8_t *ourvifaddr) 4448 { 4449 struct lkpi_hw *lhw; 4450 struct lkpi_vif *lvif; 4451 struct lkpi_sta *lsta; 4452 struct ieee80211_vif *vif; 4453 struct ieee80211_sta *sta; 4454 4455 lhw = wiphy_priv(hw->wiphy); 4456 sta = NULL; 4457 4458 LKPI_80211_LHW_LVIF_LOCK(lhw); 4459 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4460 4461 /* XXX-BZ check our address from the vif. */ 4462 4463 vif = LVIF_TO_VIF(lvif); 4464 if (ourvifaddr != NULL && 4465 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4466 continue; 4467 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4468 if (sta != NULL) 4469 break; 4470 } 4471 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4472 4473 if (sta != NULL) { 4474 lsta = STA_TO_LSTA(sta); 4475 if (!lsta->added_to_drv) 4476 return (NULL); 4477 } 4478 4479 return (sta); 4480 } 4481 4482 struct sk_buff * 4483 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4484 struct ieee80211_txq *txq) 4485 { 4486 struct lkpi_txq *ltxq; 4487 struct lkpi_vif *lvif; 4488 struct sk_buff *skb; 4489 4490 skb = NULL; 4491 ltxq = TXQ_TO_LTXQ(txq); 4492 ltxq->seen_dequeue = true; 4493 4494 if (ltxq->stopped) 4495 goto stopped; 4496 4497 lvif = VIF_TO_LVIF(ltxq->txq.vif); 4498 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 4499 ltxq->stopped = true; 4500 goto stopped; 4501 } 4502 4503 skb = skb_dequeue(<xq->skbq); 4504 4505 stopped: 4506 return (skb); 4507 } 4508 4509 void 4510 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4511 unsigned long *frame_cnt, unsigned long *byte_cnt) 4512 { 4513 struct lkpi_txq *ltxq; 4514 struct sk_buff *skb; 4515 unsigned long fc, bc; 4516 4517 ltxq = TXQ_TO_LTXQ(txq); 4518 4519 fc = bc = 0; 4520 skb_queue_walk(<xq->skbq, skb) { 4521 fc++; 4522 bc += skb->len; 4523 } 4524 if (frame_cnt) 4525 *frame_cnt = fc; 4526 if (byte_cnt) 4527 *byte_cnt = bc; 4528 4529 /* Validate that this is doing the correct thing. */ 4530 /* Should we keep track on en/dequeue? */ 4531 IMPROVE(); 4532 } 4533 4534 /* 4535 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4536 * The latter tries to derive the success status from the info flags 4537 * passed back from the driver. rawx_mit() saves the ni on the m and the 4538 * m on the skb for us to be able to give feedback to net80211. 4539 */ 4540 static void 4541 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4542 int status) 4543 { 4544 struct ieee80211_node *ni; 4545 struct mbuf *m; 4546 4547 m = skb->m; 4548 skb->m = NULL; 4549 4550 if (m != NULL) { 4551 ni = m->m_pkthdr.PH_loc.ptr; 4552 /* Status: 0 is ok, != 0 is error. */ 4553 ieee80211_tx_complete(ni, m, status); 4554 /* ni & mbuf were consumed. */ 4555 } 4556 } 4557 4558 void 4559 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4560 int status) 4561 { 4562 4563 _lkpi_ieee80211_free_txskb(hw, skb, status); 4564 kfree_skb(skb); 4565 } 4566 4567 void 4568 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 4569 struct ieee80211_tx_status *txstat) 4570 { 4571 struct sk_buff *skb; 4572 struct ieee80211_tx_info *info; 4573 struct ieee80211_ratectl_tx_status txs; 4574 struct ieee80211_node *ni; 4575 int status; 4576 4577 skb = txstat->skb; 4578 if (skb->m != NULL) { 4579 struct mbuf *m; 4580 4581 m = skb->m; 4582 ni = m->m_pkthdr.PH_loc.ptr; 4583 memset(&txs, 0, sizeof(txs)); 4584 } else { 4585 ni = NULL; 4586 } 4587 4588 info = txstat->info; 4589 if (info->flags & IEEE80211_TX_STAT_ACK) { 4590 status = 0; /* No error. */ 4591 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4592 } else { 4593 status = 1; 4594 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4595 } 4596 4597 if (ni != NULL) { 4598 int ridx __unused; 4599 #ifdef LINUXKPI_DEBUG_80211 4600 int old_rate; 4601 4602 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4603 #endif 4604 txs.pktlen = skb->len; 4605 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4606 if (info->status.rates[0].count > 1) { 4607 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4608 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4609 } 4610 #if 0 /* Unused in net80211 currently. */ 4611 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 4612 txs.final_rate = info->status.rates[0].idx; 4613 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4614 #endif 4615 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 4616 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4617 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4618 } 4619 4620 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4621 ieee80211_ratectl_tx_complete(ni, &txs); 4622 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4623 4624 #ifdef LINUXKPI_DEBUG_80211 4625 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4626 printf("TX-RATE: %s: old %d new %d ridx %d, " 4627 "long_retries %d\n", __func__, 4628 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4629 ridx, txs.long_retries); 4630 } 4631 #endif 4632 } 4633 4634 #ifdef LINUXKPI_DEBUG_80211 4635 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4636 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4637 "band %u hw_queue %u tx_time_est %d : " 4638 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4639 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4640 "tx_time %u flags %#x " 4641 "status_driver_data [ %p %p ]\n", 4642 __func__, hw, skb, status, info->flags, 4643 info->band, info->hw_queue, info->tx_time_est, 4644 info->status.rates[0].idx, info->status.rates[0].count, 4645 info->status.rates[0].flags, 4646 info->status.rates[1].idx, info->status.rates[1].count, 4647 info->status.rates[1].flags, 4648 info->status.rates[2].idx, info->status.rates[2].count, 4649 info->status.rates[2].flags, 4650 info->status.rates[3].idx, info->status.rates[3].count, 4651 info->status.rates[3].flags, 4652 info->status.ack_signal, info->status.ampdu_ack_len, 4653 info->status.ampdu_len, info->status.antenna, 4654 info->status.tx_time, info->status.flags, 4655 info->status.status_driver_data[0], 4656 info->status.status_driver_data[1]); 4657 #endif 4658 4659 if (txstat->free_list) { 4660 _lkpi_ieee80211_free_txskb(hw, skb, status); 4661 list_add_tail(&skb->list, txstat->free_list); 4662 } else { 4663 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4664 } 4665 } 4666 4667 void 4668 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4669 { 4670 struct ieee80211_tx_status status; 4671 4672 memset(&status, 0, sizeof(status)); 4673 status.info = IEEE80211_SKB_CB(skb); 4674 status.skb = skb; 4675 /* sta, n_rates, rates, free_list? */ 4676 4677 ieee80211_tx_status_ext(hw, &status); 4678 } 4679 4680 /* 4681 * This is an internal bandaid for the moment for the way we glue 4682 * skbs and mbufs together for TX. Once we have skbs backed by 4683 * mbufs this should go away. 4684 * This is a public function but kept on the private KPI (lkpi_) 4685 * and is not exposed by a header file. 4686 */ 4687 static void 4688 lkpi_ieee80211_free_skb_mbuf(void *p) 4689 { 4690 struct ieee80211_node *ni; 4691 struct mbuf *m; 4692 4693 if (p == NULL) 4694 return; 4695 4696 m = (struct mbuf *)p; 4697 M_ASSERTPKTHDR(m); 4698 4699 ni = m->m_pkthdr.PH_loc.ptr; 4700 m->m_pkthdr.PH_loc.ptr = NULL; 4701 if (ni != NULL) 4702 ieee80211_free_node(ni); 4703 m_freem(m); 4704 } 4705 4706 void 4707 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4708 struct delayed_work *w, int delay) 4709 { 4710 struct lkpi_hw *lhw; 4711 4712 /* Need to make sure hw is in a stable (non-suspended) state. */ 4713 IMPROVE(); 4714 4715 lhw = HW_TO_LHW(hw); 4716 queue_delayed_work(lhw->workq, w, delay); 4717 } 4718 4719 void 4720 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4721 struct work_struct *w) 4722 { 4723 struct lkpi_hw *lhw; 4724 4725 /* Need to make sure hw is in a stable (non-suspended) state. */ 4726 IMPROVE(); 4727 4728 lhw = HW_TO_LHW(hw); 4729 queue_work(lhw->workq, w); 4730 } 4731 4732 struct sk_buff * 4733 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4734 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4735 { 4736 struct sk_buff *skb; 4737 struct ieee80211_frame *wh; 4738 uint8_t *p; 4739 size_t len; 4740 4741 len = sizeof(*wh); 4742 len += 2 + ssid_len; 4743 4744 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4745 if (skb == NULL) 4746 return (NULL); 4747 4748 skb_reserve(skb, hw->extra_tx_headroom); 4749 4750 wh = skb_put_zero(skb, sizeof(*wh)); 4751 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4752 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4753 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4754 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4755 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4756 4757 p = skb_put(skb, 2 + ssid_len); 4758 *p++ = IEEE80211_ELEMID_SSID; 4759 *p++ = ssid_len; 4760 if (ssid_len > 0) 4761 memcpy(p, ssid, ssid_len); 4762 4763 return (skb); 4764 } 4765 4766 struct sk_buff * 4767 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4768 struct ieee80211_vif *vif) 4769 { 4770 struct lkpi_vif *lvif; 4771 struct ieee80211vap *vap; 4772 struct sk_buff *skb; 4773 struct ieee80211_frame_pspoll *psp; 4774 uint16_t v; 4775 4776 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4777 if (skb == NULL) 4778 return (NULL); 4779 4780 skb_reserve(skb, hw->extra_tx_headroom); 4781 4782 lvif = VIF_TO_LVIF(vif); 4783 vap = LVIF_TO_VAP(lvif); 4784 4785 psp = skb_put_zero(skb, sizeof(*psp)); 4786 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4787 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4788 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 4789 memcpy(&psp->i_aid, &v, sizeof(v)); 4790 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4791 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4792 4793 return (skb); 4794 } 4795 4796 struct sk_buff * 4797 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4798 struct ieee80211_vif *vif, int linkid, bool qos) 4799 { 4800 struct lkpi_vif *lvif; 4801 struct ieee80211vap *vap; 4802 struct sk_buff *skb; 4803 struct ieee80211_frame *nullf; 4804 4805 IMPROVE("linkid"); 4806 4807 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4808 if (skb == NULL) 4809 return (NULL); 4810 4811 skb_reserve(skb, hw->extra_tx_headroom); 4812 4813 lvif = VIF_TO_LVIF(vif); 4814 vap = LVIF_TO_VAP(lvif); 4815 4816 nullf = skb_put_zero(skb, sizeof(*nullf)); 4817 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4818 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4819 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4820 4821 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4822 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4823 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4824 4825 return (skb); 4826 } 4827 4828 struct wireless_dev * 4829 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4830 { 4831 struct lkpi_vif *lvif; 4832 4833 lvif = VIF_TO_LVIF(vif); 4834 return (&lvif->wdev); 4835 } 4836 4837 void 4838 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4839 { 4840 struct lkpi_vif *lvif; 4841 struct ieee80211vap *vap; 4842 enum ieee80211_state nstate; 4843 int arg; 4844 4845 lvif = VIF_TO_LVIF(vif); 4846 vap = LVIF_TO_VAP(lvif); 4847 4848 /* 4849 * Go to init; otherwise we need to elaborately check state and 4850 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4851 * Let the statemachine handle all neccessary changes. 4852 */ 4853 nstate = IEEE80211_S_INIT; 4854 arg = 0; /* Not a valid reason. */ 4855 4856 #ifdef LINUXKPI_DEBUG_80211 4857 if (linuxkpi_debug_80211 & D80211_TRACE) 4858 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4859 #endif 4860 ieee80211_new_state(vap, nstate, arg); 4861 } 4862 4863 void 4864 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4865 { 4866 struct lkpi_vif *lvif; 4867 struct ieee80211vap *vap; 4868 4869 lvif = VIF_TO_LVIF(vif); 4870 vap = LVIF_TO_VAP(lvif); 4871 4872 #ifdef LINUXKPI_DEBUG_80211 4873 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4874 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4875 vif, vap, ieee80211_state_name[vap->iv_state]); 4876 #endif 4877 ieee80211_beacon_miss(vap->iv_ic); 4878 } 4879 4880 /* -------------------------------------------------------------------------- */ 4881 4882 void 4883 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 4884 { 4885 struct lkpi_hw *lhw; 4886 struct lkpi_vif *lvif; 4887 struct ieee80211_vif *vif; 4888 int ac_count, ac; 4889 4890 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 4891 __func__, qnum, hw->queues, hw)); 4892 4893 lhw = wiphy_priv(hw->wiphy); 4894 4895 /* See lkpi_ic_vap_create(). */ 4896 if (hw->queues >= IEEE80211_NUM_ACS) 4897 ac_count = IEEE80211_NUM_ACS; 4898 else 4899 ac_count = 1; 4900 4901 LKPI_80211_LHW_LVIF_LOCK(lhw); 4902 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4903 4904 vif = LVIF_TO_VIF(lvif); 4905 for (ac = 0; ac < ac_count; ac++) { 4906 IMPROVE_TXQ("LOCKING"); 4907 if (qnum == vif->hw_queue[ac]) { 4908 /* 4909 * For now log this to better understand 4910 * how this is supposed to work. 4911 */ 4912 if (lvif->hw_queue_stopped[ac]) 4913 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4914 "lvif %p vif %p ac %d qnum %d already " 4915 "stopped\n", __func__, __LINE__, 4916 lhw, hw, lvif, vif, ac, qnum); 4917 lvif->hw_queue_stopped[ac] = true; 4918 } 4919 } 4920 } 4921 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4922 } 4923 4924 void 4925 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 4926 { 4927 int i; 4928 4929 IMPROVE_TXQ("Locking; do we need further info?"); 4930 for (i = 0; i < hw->queues; i++) 4931 linuxkpi_ieee80211_stop_queue(hw, i); 4932 } 4933 4934 4935 static void 4936 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 4937 { 4938 struct lkpi_hw *lhw; 4939 struct lkpi_vif *lvif; 4940 struct lkpi_sta *lsta; 4941 int ac_count, ac, tid; 4942 4943 /* See lkpi_ic_vap_create(). */ 4944 if (hw->queues >= IEEE80211_NUM_ACS) 4945 ac_count = IEEE80211_NUM_ACS; 4946 else 4947 ac_count = 1; 4948 4949 lhw = wiphy_priv(hw->wiphy); 4950 4951 IMPROVE_TXQ("Locking"); 4952 LKPI_80211_LHW_LVIF_LOCK(lhw); 4953 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4954 struct ieee80211_vif *vif; 4955 4956 vif = LVIF_TO_VIF(lvif); 4957 for (ac = 0; ac < ac_count; ac++) { 4958 4959 if (hwq == vif->hw_queue[ac]) { 4960 4961 /* XXX-BZ what about software scan? */ 4962 4963 /* 4964 * For now log this to better understand 4965 * how this is supposed to work. 4966 */ 4967 if (!lvif->hw_queue_stopped[ac]) 4968 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4969 "lvif %p vif %p ac %d hw_q not stopped\n", 4970 __func__, __LINE__, 4971 lhw, hw, lvif, vif, ac); 4972 lvif->hw_queue_stopped[ac] = false; 4973 4974 LKPI_80211_LVIF_LOCK(lvif); 4975 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4976 struct ieee80211_sta *sta; 4977 4978 sta = LSTA_TO_STA(lsta); 4979 for (tid = 0; tid < nitems(sta->txq); tid++) { 4980 struct lkpi_txq *ltxq; 4981 4982 if (sta->txq[tid] == NULL) 4983 continue; 4984 4985 if (sta->txq[tid]->ac != ac) 4986 continue; 4987 4988 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 4989 if (!ltxq->stopped) 4990 continue; 4991 4992 ltxq->stopped = false; 4993 4994 /* XXX-BZ see when this explodes with all the locking. taskq? */ 4995 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 4996 } 4997 } 4998 LKPI_80211_LVIF_UNLOCK(lvif); 4999 } 5000 } 5001 } 5002 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5003 } 5004 5005 void 5006 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 5007 { 5008 int i; 5009 5010 IMPROVE_TXQ("Is this all/enough here?"); 5011 for (i = 0; i < hw->queues; i++) 5012 lkpi_ieee80211_wake_queues(hw, i); 5013 } 5014 5015 void 5016 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 5017 { 5018 5019 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5020 __func__, qnum, hw->queues, hw)); 5021 5022 lkpi_ieee80211_wake_queues(hw, qnum); 5023 } 5024 5025 /* This is just hardware queues. */ 5026 void 5027 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 5028 { 5029 struct lkpi_hw *lhw; 5030 5031 lhw = HW_TO_LHW(hw); 5032 5033 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 5034 IMPROVE_TXQ("LOCKING"); 5035 if (++lhw->txq_generation[ac] == 0) 5036 lhw->txq_generation[ac]++; 5037 } 5038 5039 struct ieee80211_txq * 5040 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 5041 { 5042 struct lkpi_hw *lhw; 5043 struct ieee80211_txq *txq; 5044 struct lkpi_txq *ltxq; 5045 5046 lhw = HW_TO_LHW(hw); 5047 txq = NULL; 5048 5049 IMPROVE_TXQ("LOCKING"); 5050 5051 /* Check that we are scheduled. */ 5052 if (lhw->txq_generation[ac] == 0) 5053 goto out; 5054 5055 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 5056 if (ltxq == NULL) 5057 goto out; 5058 if (ltxq->txq_generation == lhw->txq_generation[ac]) 5059 goto out; 5060 5061 ltxq->txq_generation = lhw->txq_generation[ac]; 5062 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 5063 txq = <xq->txq; 5064 TAILQ_ELEM_INIT(ltxq, txq_entry); 5065 5066 out: 5067 return (txq); 5068 } 5069 5070 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 5071 struct ieee80211_txq *txq, bool withoutpkts) 5072 { 5073 struct lkpi_hw *lhw; 5074 struct lkpi_txq *ltxq; 5075 5076 ltxq = TXQ_TO_LTXQ(txq); 5077 5078 IMPROVE_TXQ("LOCKING"); 5079 5080 /* Only schedule if work to do or asked to anyway. */ 5081 if (!withoutpkts && skb_queue_empty(<xq->skbq)) 5082 goto out; 5083 5084 /* Make sure we do not double-schedule. */ 5085 if (ltxq->txq_entry.tqe_next != NULL) 5086 goto out; 5087 5088 lhw = HW_TO_LHW(hw); 5089 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 5090 out: 5091 return; 5092 } 5093 5094 /* -------------------------------------------------------------------------- */ 5095 5096 struct lkpi_cfg80211_bss { 5097 u_int refcnt; 5098 struct cfg80211_bss bss; 5099 }; 5100 5101 struct lkpi_cfg80211_get_bss_iter_lookup { 5102 struct wiphy *wiphy; 5103 struct linuxkpi_ieee80211_channel *chan; 5104 const uint8_t *bssid; 5105 const uint8_t *ssid; 5106 size_t ssid_len; 5107 enum ieee80211_bss_type bss_type; 5108 enum ieee80211_privacy privacy; 5109 5110 /* 5111 * Something to store a copy of the result as the net80211 scan cache 5112 * is not refoucnted so a scan entry might go away any time. 5113 */ 5114 bool match; 5115 struct cfg80211_bss *bss; 5116 }; 5117 5118 static void 5119 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 5120 { 5121 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 5122 size_t ielen; 5123 5124 lookup = arg; 5125 5126 /* Do not try to find another match. */ 5127 if (lookup->match) 5128 return; 5129 5130 /* Nothing to store result. */ 5131 if (lookup->bss == NULL) 5132 return; 5133 5134 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 5135 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 5136 /* We have no idea what to compare to as the drivers only request ANY */ 5137 return; 5138 } 5139 5140 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 5141 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 5142 /* We have no idea what to compare to as the drivers only request ANY */ 5143 return; 5144 } 5145 5146 if (lookup->chan != NULL) { 5147 struct linuxkpi_ieee80211_channel *chan; 5148 5149 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 5150 se->se_chan->ic_freq); 5151 if (chan == NULL || chan != lookup->chan) 5152 return; 5153 } 5154 5155 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 5156 return; 5157 5158 if (lookup->ssid) { 5159 if (lookup->ssid_len != se->se_ssid[1] || 5160 se->se_ssid[1] == 0) 5161 return; 5162 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 5163 return; 5164 } 5165 5166 ielen = se->se_ies.len; 5167 5168 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 5169 M_LKPI80211, M_NOWAIT | M_ZERO); 5170 if (lookup->bss->ies == NULL) 5171 return; 5172 5173 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 5174 lookup->bss->ies->len = ielen; 5175 if (ielen) 5176 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 5177 5178 lookup->match = true; 5179 } 5180 5181 struct cfg80211_bss * 5182 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 5183 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 5184 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 5185 { 5186 struct lkpi_cfg80211_bss *lbss; 5187 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 5188 struct lkpi_hw *lhw; 5189 struct ieee80211vap *vap; 5190 5191 lhw = wiphy_priv(wiphy); 5192 5193 /* Let's hope we can alloc. */ 5194 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 5195 if (lbss == NULL) { 5196 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 5197 return (NULL); 5198 } 5199 5200 lookup.wiphy = wiphy; 5201 lookup.chan = chan; 5202 lookup.bssid = bssid; 5203 lookup.ssid = ssid; 5204 lookup.ssid_len = ssid_len; 5205 lookup.bss_type = bss_type; 5206 lookup.privacy = privacy; 5207 lookup.match = false; 5208 lookup.bss = &lbss->bss; 5209 5210 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 5211 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 5212 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 5213 if (!lookup.match) { 5214 free(lbss, M_LKPI80211); 5215 return (NULL); 5216 } 5217 5218 refcount_init(&lbss->refcnt, 1); 5219 return (&lbss->bss); 5220 } 5221 5222 void 5223 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 5224 { 5225 struct lkpi_cfg80211_bss *lbss; 5226 5227 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 5228 5229 /* Free everything again on refcount ... */ 5230 if (refcount_release(&lbss->refcnt)) { 5231 free(lbss->bss.ies, M_LKPI80211); 5232 free(lbss, M_LKPI80211); 5233 } 5234 } 5235 5236 void 5237 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 5238 { 5239 struct lkpi_hw *lhw; 5240 struct ieee80211com *ic; 5241 struct ieee80211vap *vap; 5242 5243 lhw = wiphy_priv(wiphy); 5244 ic = lhw->ic; 5245 5246 /* 5247 * If we haven't called ieee80211_ifattach() yet 5248 * or there is no VAP, there are no scans to flush. 5249 */ 5250 if (ic == NULL || 5251 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 5252 return; 5253 5254 /* Should only happen on the current one? Not seen it late enough. */ 5255 IEEE80211_LOCK(ic); 5256 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 5257 ieee80211_scan_flush(vap); 5258 IEEE80211_UNLOCK(ic); 5259 } 5260 5261 /* -------------------------------------------------------------------------- */ 5262 5263 MODULE_VERSION(linuxkpi_wlan, 1); 5264 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 5265 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 5266