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 ic_printf(vap->iv_ic, "%s:%d: mo_add_chanctx " 1016 "failed: %d\n", __func__, __LINE__, error); 1017 goto out; 1018 } 1019 1020 vif->bss_conf.chanctx_conf = conf; 1021 1022 /* Assign vif chanctx. */ 1023 if (error == 0) 1024 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, 1025 &vif->bss_conf, conf); 1026 if (error == EOPNOTSUPP) 1027 error = 0; 1028 if (error != 0) { 1029 ic_printf(vap->iv_ic, "%s:%d: mo_assign_vif_chanctx " 1030 "failed: %d\n", __func__, __LINE__, error); 1031 lkpi_80211_mo_remove_chanctx(hw, conf); 1032 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1033 free(lchanctx, M_LKPI80211); 1034 goto out; 1035 } 1036 } 1037 IMPROVE("update radiotap chan fields too"); 1038 1039 /* RATES */ 1040 IMPROVE("bss info: not all needs to come now and rates are missing"); 1041 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1042 1043 /* 1044 * This is a bandaid for now. If we went through (*iv_update_bss)() 1045 * and then removed the lsta we end up here without a lsta and have 1046 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1047 * would normally do. 1048 * XXX-BZ I do not like this but currently we have no good way of 1049 * intercepting the bss swap and state changes and packets going out 1050 * workflow so live with this. It is a compat layer after all. 1051 */ 1052 if (ni->ni_drv_data == NULL) { 1053 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1054 if (lsta == NULL) { 1055 error = ENOMEM; 1056 ic_printf(vap->iv_ic, "%s:%d: lkpi_lsta_alloc " 1057 "failed: %d\n", __func__, __LINE__, error); 1058 goto out; 1059 } 1060 lsta->ni = ieee80211_ref_node(ni); 1061 } else { 1062 lsta = ni->ni_drv_data; 1063 } 1064 1065 /* Insert the [l]sta into the list of known stations. */ 1066 LKPI_80211_LVIF_LOCK(lvif); 1067 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1068 LKPI_80211_LVIF_UNLOCK(lvif); 1069 1070 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1071 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1072 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1073 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1074 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1075 if (error != 0) { 1076 IMPROVE("do we need to undo the chan ctx?"); 1077 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1078 "failed: %d\n", __func__, __LINE__, error); 1079 goto out; 1080 } 1081 #if 0 1082 lsta->added_to_drv = true; /* mo manages. */ 1083 #endif 1084 1085 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1086 1087 /* 1088 * Wakeup all queues now that sta is there so we have as much time to 1089 * possibly prepare the queue in the driver to be ready for the 1st 1090 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1091 * is no guarantee or way to check. 1092 * XXX-BZ and by now we know that this does not work on all drivers 1093 * for all queues. 1094 */ 1095 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1096 1097 /* Start mgd_prepare_tx. */ 1098 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1099 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1100 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1101 lsta->in_mgd = true; 1102 1103 /* 1104 * What is going to happen next: 1105 * - <twiddle> .. we should end up in "auth_to_assoc" 1106 * - event_callback 1107 * - update sta_state (NONE to AUTH) 1108 * - mgd_complete_tx 1109 * (ideally we'd do that on a callback for something else ...) 1110 */ 1111 1112 out: 1113 LKPI_80211_LHW_UNLOCK(lhw); 1114 IEEE80211_LOCK(vap->iv_ic); 1115 if (ni != NULL) 1116 ieee80211_free_node(ni); 1117 return (error); 1118 } 1119 1120 static int 1121 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1122 { 1123 struct lkpi_hw *lhw; 1124 struct ieee80211_hw *hw; 1125 struct lkpi_vif *lvif; 1126 struct ieee80211_vif *vif; 1127 struct ieee80211_node *ni; 1128 struct lkpi_sta *lsta; 1129 struct ieee80211_sta *sta; 1130 struct ieee80211_prep_tx_info prep_tx_info; 1131 int error; 1132 1133 lhw = vap->iv_ic->ic_softc; 1134 hw = LHW_TO_HW(lhw); 1135 lvif = VAP_TO_LVIF(vap); 1136 vif = LVIF_TO_VIF(lvif); 1137 1138 /* Keep ni around. */ 1139 ni = ieee80211_ref_node(vap->iv_bss); 1140 lsta = ni->ni_drv_data; 1141 sta = LSTA_TO_STA(lsta); 1142 1143 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1144 1145 IEEE80211_UNLOCK(vap->iv_ic); 1146 LKPI_80211_LHW_LOCK(lhw); 1147 1148 /* flush, drop. */ 1149 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1150 1151 /* Wake tx queues to get packet(s) out. */ 1152 lkpi_wake_tx_queues(hw, sta, true, true); 1153 1154 /* flush, no drop */ 1155 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1156 1157 /* End mgd_complete_tx. */ 1158 if (lsta->in_mgd) { 1159 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1160 prep_tx_info.success = false; 1161 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1162 lsta->in_mgd = false; 1163 } 1164 1165 /* sync_rx_queues */ 1166 lkpi_80211_mo_sync_rx_queues(hw); 1167 1168 /* sta_pre_rcu_remove */ 1169 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1170 1171 /* Take the station down. */ 1172 1173 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1174 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1175 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1176 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1177 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1178 if (error != 0) { 1179 IMPROVE("do we need to undo the chan ctx?"); 1180 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1181 "failed: %d\n", __func__, __LINE__, error); 1182 goto out; 1183 } 1184 #if 0 1185 lsta->added_to_drv = false; /* mo manages. */ 1186 #endif 1187 1188 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1189 1190 lkpi_lsta_remove(lsta, lvif); 1191 1192 /* conf_tx */ 1193 1194 /* Take the chan ctx down. */ 1195 if (vif->chanctx_conf != NULL) { 1196 struct lkpi_chanctx *lchanctx; 1197 struct ieee80211_chanctx_conf *conf; 1198 1199 conf = vif->chanctx_conf; 1200 /* Remove vif context. */ 1201 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1202 /* NB: vif->chanctx_conf is NULL now. */ 1203 1204 /* Remove chan ctx. */ 1205 lkpi_80211_mo_remove_chanctx(hw, conf); 1206 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1207 free(lchanctx, M_LKPI80211); 1208 } 1209 1210 out: 1211 LKPI_80211_LHW_UNLOCK(lhw); 1212 IEEE80211_LOCK(vap->iv_ic); 1213 if (ni != NULL) 1214 ieee80211_free_node(ni); 1215 return (error); 1216 } 1217 1218 static int 1219 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1220 { 1221 int error; 1222 1223 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1224 if (error == 0) 1225 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1226 return (error); 1227 } 1228 1229 static int 1230 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1231 { 1232 struct lkpi_hw *lhw; 1233 struct ieee80211_hw *hw; 1234 struct lkpi_vif *lvif; 1235 struct ieee80211_vif *vif; 1236 struct ieee80211_node *ni; 1237 struct lkpi_sta *lsta; 1238 struct ieee80211_prep_tx_info prep_tx_info; 1239 int error; 1240 1241 lhw = vap->iv_ic->ic_softc; 1242 hw = LHW_TO_HW(lhw); 1243 lvif = VAP_TO_LVIF(vap); 1244 vif = LVIF_TO_VIF(lvif); 1245 1246 IEEE80211_UNLOCK(vap->iv_ic); 1247 LKPI_80211_LHW_LOCK(lhw); 1248 ni = NULL; 1249 1250 /* Finish auth. */ 1251 IMPROVE("event callback"); 1252 1253 /* Update sta_state (NONE to AUTH). */ 1254 ni = ieee80211_ref_node(vap->iv_bss); 1255 lsta = ni->ni_drv_data; 1256 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1257 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1258 "NONE: %#x\n", __func__, lsta, lsta->state)); 1259 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1260 if (error != 0) { 1261 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1262 "failed: %d\n", __func__, __LINE__, error); 1263 goto out; 1264 } 1265 1266 /* End mgd_complete_tx. */ 1267 if (lsta->in_mgd) { 1268 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1269 prep_tx_info.success = true; 1270 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1271 lsta->in_mgd = false; 1272 } 1273 1274 /* Now start assoc. */ 1275 1276 /* Start mgd_prepare_tx. */ 1277 if (!lsta->in_mgd) { 1278 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1279 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1280 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1281 lsta->in_mgd = true; 1282 } 1283 1284 /* Wake tx queue to get packet out. */ 1285 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1286 1287 /* 1288 * <twiddle> .. we end up in "assoc_to_run" 1289 * - update sta_state (AUTH to ASSOC) 1290 * - conf_tx [all] 1291 * - bss_info_changed (assoc, aid, ssid, ..) 1292 * - change_chanctx (if needed) 1293 * - event_callback 1294 * - mgd_complete_tx 1295 */ 1296 1297 out: 1298 LKPI_80211_LHW_UNLOCK(lhw); 1299 IEEE80211_LOCK(vap->iv_ic); 1300 if (ni != NULL) 1301 ieee80211_free_node(ni); 1302 return (error); 1303 } 1304 1305 /* auth_to_auth, assoc_to_assoc. */ 1306 static int 1307 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1308 { 1309 struct lkpi_hw *lhw; 1310 struct ieee80211_hw *hw; 1311 struct lkpi_vif *lvif; 1312 struct ieee80211_vif *vif; 1313 struct ieee80211_node *ni; 1314 struct lkpi_sta *lsta; 1315 struct ieee80211_prep_tx_info prep_tx_info; 1316 1317 lhw = vap->iv_ic->ic_softc; 1318 hw = LHW_TO_HW(lhw); 1319 lvif = VAP_TO_LVIF(vap); 1320 vif = LVIF_TO_VIF(lvif); 1321 1322 ni = ieee80211_ref_node(vap->iv_bss); 1323 1324 IEEE80211_UNLOCK(vap->iv_ic); 1325 LKPI_80211_LHW_LOCK(lhw); 1326 lsta = ni->ni_drv_data; 1327 1328 IMPROVE("event callback?"); 1329 1330 /* End mgd_complete_tx. */ 1331 if (lsta->in_mgd) { 1332 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1333 prep_tx_info.success = false; 1334 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1335 lsta->in_mgd = false; 1336 } 1337 1338 /* Now start assoc. */ 1339 1340 /* Start mgd_prepare_tx. */ 1341 if (!lsta->in_mgd) { 1342 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1343 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1344 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1345 lsta->in_mgd = true; 1346 } 1347 1348 LKPI_80211_LHW_UNLOCK(lhw); 1349 IEEE80211_LOCK(vap->iv_ic); 1350 if (ni != NULL) 1351 ieee80211_free_node(ni); 1352 1353 return (0); 1354 } 1355 1356 static int 1357 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1358 { 1359 struct lkpi_hw *lhw; 1360 struct ieee80211_hw *hw; 1361 struct lkpi_vif *lvif; 1362 struct ieee80211_vif *vif; 1363 struct ieee80211_node *ni; 1364 struct lkpi_sta *lsta; 1365 struct ieee80211_sta *sta; 1366 struct ieee80211_prep_tx_info prep_tx_info; 1367 enum ieee80211_bss_changed bss_changed; 1368 int error; 1369 1370 lhw = vap->iv_ic->ic_softc; 1371 hw = LHW_TO_HW(lhw); 1372 lvif = VAP_TO_LVIF(vap); 1373 vif = LVIF_TO_VIF(lvif); 1374 1375 /* Keep ni around. */ 1376 ni = ieee80211_ref_node(vap->iv_bss); 1377 lsta = ni->ni_drv_data; 1378 sta = LSTA_TO_STA(lsta); 1379 1380 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1381 1382 IEEE80211_UNLOCK(vap->iv_ic); 1383 LKPI_80211_LHW_LOCK(lhw); 1384 1385 /* flush, drop. */ 1386 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1387 1388 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1389 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1390 !lsta->in_mgd) { 1391 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1392 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1393 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1394 lsta->in_mgd = true; 1395 } 1396 1397 LKPI_80211_LHW_UNLOCK(lhw); 1398 IEEE80211_LOCK(vap->iv_ic); 1399 1400 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1401 error = lvif->iv_newstate(vap, nstate, arg); 1402 if (error != 0) { 1403 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1404 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1405 goto outni; 1406 } 1407 1408 IEEE80211_UNLOCK(vap->iv_ic); 1409 LKPI_80211_LHW_LOCK(lhw); 1410 1411 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1412 1413 /* Wake tx queues to get packet(s) out. */ 1414 lkpi_wake_tx_queues(hw, sta, true, true); 1415 1416 /* flush, no drop */ 1417 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1418 1419 /* End mgd_complete_tx. */ 1420 if (lsta->in_mgd) { 1421 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1422 prep_tx_info.success = false; 1423 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1424 lsta->in_mgd = false; 1425 } 1426 1427 /* sync_rx_queues */ 1428 lkpi_80211_mo_sync_rx_queues(hw); 1429 1430 /* sta_pre_rcu_remove */ 1431 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1432 1433 /* Take the station down. */ 1434 1435 /* Update sta and change state (from AUTH) to NONE. */ 1436 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1437 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1438 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1439 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1440 if (error != 0) { 1441 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1442 "failed: %d\n", __func__, __LINE__, error); 1443 goto out; 1444 } 1445 1446 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1447 1448 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1449 /* 1450 * We need to do this now, before sta changes to IEEE80211_STA_NOTEXIST 1451 * as otherwise drivers (iwlwifi at least) will silently not remove 1452 * the sta from the firmware and when we will add a new one trigger 1453 * a fw assert. 1454 */ 1455 lkpi_disassoc(sta, vif, lhw); 1456 1457 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1458 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1459 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1460 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1461 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1462 if (error != 0) { 1463 IMPROVE("do we need to undo the chan ctx?"); 1464 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1465 "failed: %d\n", __func__, __LINE__, error); 1466 goto out; 1467 } 1468 1469 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1470 1471 IMPROVE("Any bss_info changes to announce?"); 1472 bss_changed = 0; 1473 vif->bss_conf.qos = 0; 1474 bss_changed |= BSS_CHANGED_QOS; 1475 vif->cfg.ssid_len = 0; 1476 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1477 bss_changed |= BSS_CHANGED_BSSID; 1478 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1479 1480 lkpi_lsta_remove(lsta, lvif); 1481 1482 /* conf_tx */ 1483 1484 /* Take the chan ctx down. */ 1485 if (vif->chanctx_conf != NULL) { 1486 struct lkpi_chanctx *lchanctx; 1487 struct ieee80211_chanctx_conf *conf; 1488 1489 conf = vif->chanctx_conf; 1490 /* Remove vif context. */ 1491 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1492 /* NB: vif->chanctx_conf is NULL now. */ 1493 1494 /* Remove chan ctx. */ 1495 lkpi_80211_mo_remove_chanctx(hw, conf); 1496 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1497 free(lchanctx, M_LKPI80211); 1498 } 1499 1500 error = EALREADY; 1501 out: 1502 LKPI_80211_LHW_UNLOCK(lhw); 1503 IEEE80211_LOCK(vap->iv_ic); 1504 outni: 1505 if (ni != NULL) 1506 ieee80211_free_node(ni); 1507 return (error); 1508 } 1509 1510 static int 1511 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1512 { 1513 int error; 1514 1515 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1516 if (error != 0 && error != EALREADY) 1517 return (error); 1518 1519 /* At this point iv_bss is long a new node! */ 1520 1521 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1522 return (error); 1523 } 1524 1525 static int 1526 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1527 { 1528 int error; 1529 1530 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1531 return (error); 1532 } 1533 1534 static int 1535 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1536 { 1537 int error; 1538 1539 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1540 return (error); 1541 } 1542 1543 static int 1544 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1545 { 1546 struct lkpi_hw *lhw; 1547 struct ieee80211_hw *hw; 1548 struct lkpi_vif *lvif; 1549 struct ieee80211_vif *vif; 1550 struct ieee80211_node *ni; 1551 struct lkpi_sta *lsta; 1552 struct ieee80211_sta *sta; 1553 struct ieee80211_prep_tx_info prep_tx_info; 1554 enum ieee80211_bss_changed bss_changed; 1555 int error; 1556 1557 lhw = vap->iv_ic->ic_softc; 1558 hw = LHW_TO_HW(lhw); 1559 lvif = VAP_TO_LVIF(vap); 1560 vif = LVIF_TO_VIF(lvif); 1561 1562 IEEE80211_UNLOCK(vap->iv_ic); 1563 LKPI_80211_LHW_LOCK(lhw); 1564 ni = NULL; 1565 1566 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1567 "and to lesser extend ieee80211_notify_node_join"); 1568 1569 /* Finish assoc. */ 1570 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1571 ni = ieee80211_ref_node(vap->iv_bss); 1572 lsta = ni->ni_drv_data; 1573 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1574 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1575 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1576 sta = LSTA_TO_STA(lsta); 1577 sta->aid = IEEE80211_NODE_AID(ni); 1578 #ifdef LKPI_80211_WME 1579 if (vap->iv_flags & IEEE80211_F_WME) 1580 sta->wme = true; 1581 #endif 1582 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1583 if (error != 0) { 1584 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1585 "failed: %d\n", __func__, __LINE__, error); 1586 goto out; 1587 } 1588 1589 IMPROVE("wme / conf_tx [all]"); 1590 1591 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1592 bss_changed = 0; 1593 #ifdef LKPI_80211_WME 1594 bss_changed |= lkpi_wme_update(lhw, vap, true); 1595 #endif 1596 if (!vif->cfg.assoc || vif->cfg.aid != IEEE80211_NODE_AID(ni)) { 1597 vif->cfg.assoc = true; 1598 vif->cfg.aid = IEEE80211_NODE_AID(ni); 1599 bss_changed |= BSS_CHANGED_ASSOC; 1600 } 1601 /* We set SSID but this is not BSSID! */ 1602 vif->cfg.ssid_len = ni->ni_esslen; 1603 memcpy(vif->cfg.ssid, ni->ni_essid, ni->ni_esslen); 1604 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1605 vif->bss_conf.use_short_preamble) { 1606 vif->bss_conf.use_short_preamble ^= 1; 1607 /* bss_changed |= BSS_CHANGED_??? */ 1608 } 1609 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1610 vif->bss_conf.use_short_slot) { 1611 vif->bss_conf.use_short_slot ^= 1; 1612 /* bss_changed |= BSS_CHANGED_??? */ 1613 } 1614 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1615 vif->bss_conf.qos) { 1616 vif->bss_conf.qos ^= 1; 1617 bss_changed |= BSS_CHANGED_QOS; 1618 } 1619 1620 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1621 1622 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1623 1624 /* - change_chanctx (if needed) 1625 * - event_callback 1626 */ 1627 1628 /* End mgd_complete_tx. */ 1629 if (lsta->in_mgd) { 1630 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1631 prep_tx_info.success = true; 1632 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1633 lsta->in_mgd = false; 1634 } 1635 1636 lkpi_hw_conf_idle(hw, false); 1637 1638 /* 1639 * And then: 1640 * - (more packets)? 1641 * - set_key 1642 * - set_default_unicast_key 1643 * - set_key (?) 1644 * - ipv6_addr_change (?) 1645 */ 1646 /* Prepare_multicast && configure_filter. */ 1647 lhw->update_mc = true; 1648 lkpi_update_mcast_filter(vap->iv_ic, true); 1649 1650 if (!ieee80211_node_is_authorized(ni)) { 1651 IMPROVE("net80211 does not consider node authorized"); 1652 } 1653 1654 /* Update sta_state (ASSOC to AUTHORIZED). */ 1655 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1656 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1657 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1658 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1659 if (error != 0) { 1660 IMPROVE("undo some changes?"); 1661 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTHORIZED) " 1662 "failed: %d\n", __func__, __LINE__, error); 1663 goto out; 1664 } 1665 1666 /* - drv_config (?) 1667 * - bss_info_changed 1668 * - set_rekey_data (?) 1669 * 1670 * And now we should be passing packets. 1671 */ 1672 IMPROVE("Need that bssid setting, and the keys"); 1673 1674 bss_changed = 0; 1675 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1676 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1677 1678 out: 1679 LKPI_80211_LHW_UNLOCK(lhw); 1680 IEEE80211_LOCK(vap->iv_ic); 1681 if (ni != NULL) 1682 ieee80211_free_node(ni); 1683 return (error); 1684 } 1685 1686 static int 1687 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1688 { 1689 int error; 1690 1691 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1692 if (error == 0) 1693 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1694 return (error); 1695 } 1696 1697 static int 1698 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1699 { 1700 struct lkpi_hw *lhw; 1701 struct ieee80211_hw *hw; 1702 struct lkpi_vif *lvif; 1703 struct ieee80211_vif *vif; 1704 struct ieee80211_node *ni; 1705 struct lkpi_sta *lsta; 1706 struct ieee80211_sta *sta; 1707 struct ieee80211_prep_tx_info prep_tx_info; 1708 #if 0 1709 enum ieee80211_bss_changed bss_changed; 1710 #endif 1711 int error; 1712 1713 lhw = vap->iv_ic->ic_softc; 1714 hw = LHW_TO_HW(lhw); 1715 lvif = VAP_TO_LVIF(vap); 1716 vif = LVIF_TO_VIF(lvif); 1717 1718 /* Keep ni around. */ 1719 ni = ieee80211_ref_node(vap->iv_bss); 1720 lsta = ni->ni_drv_data; 1721 sta = LSTA_TO_STA(lsta); 1722 1723 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1724 1725 IEEE80211_UNLOCK(vap->iv_ic); 1726 LKPI_80211_LHW_LOCK(lhw); 1727 1728 /* flush, drop. */ 1729 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1730 1731 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1732 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1733 !lsta->in_mgd) { 1734 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1735 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1736 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1737 lsta->in_mgd = true; 1738 } 1739 1740 LKPI_80211_LHW_UNLOCK(lhw); 1741 IEEE80211_LOCK(vap->iv_ic); 1742 1743 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1744 error = lvif->iv_newstate(vap, nstate, arg); 1745 if (error != 0) { 1746 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1747 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1748 goto outni; 1749 } 1750 1751 IEEE80211_UNLOCK(vap->iv_ic); 1752 LKPI_80211_LHW_LOCK(lhw); 1753 1754 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1755 1756 /* Wake tx queues to get packet(s) out. */ 1757 lkpi_wake_tx_queues(hw, sta, true, true); 1758 1759 /* flush, no drop */ 1760 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1761 1762 /* End mgd_complete_tx. */ 1763 if (lsta->in_mgd) { 1764 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1765 prep_tx_info.success = false; 1766 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1767 lsta->in_mgd = false; 1768 } 1769 1770 #if 0 1771 /* sync_rx_queues */ 1772 lkpi_80211_mo_sync_rx_queues(hw); 1773 1774 /* sta_pre_rcu_remove */ 1775 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1776 #endif 1777 1778 /* Take the station down. */ 1779 1780 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1781 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1782 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1783 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1784 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1785 if (error != 0) { 1786 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1787 "failed: %d\n", __func__, __LINE__, error); 1788 goto out; 1789 } 1790 1791 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1792 1793 /* Update sta_state (ASSOC to AUTH). */ 1794 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1795 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1796 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1797 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1798 if (error != 0) { 1799 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1800 "failed: %d\n", __func__, __LINE__, error); 1801 goto out; 1802 } 1803 1804 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1805 1806 #if 0 1807 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1808 lkpi_disassoc(sta, vif, lhw); 1809 #endif 1810 1811 error = EALREADY; 1812 out: 1813 LKPI_80211_LHW_UNLOCK(lhw); 1814 IEEE80211_LOCK(vap->iv_ic); 1815 outni: 1816 if (ni != NULL) 1817 ieee80211_free_node(ni); 1818 return (error); 1819 } 1820 1821 static int 1822 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1823 { 1824 struct lkpi_hw *lhw; 1825 struct ieee80211_hw *hw; 1826 struct lkpi_vif *lvif; 1827 struct ieee80211_vif *vif; 1828 struct ieee80211_node *ni; 1829 struct lkpi_sta *lsta; 1830 struct ieee80211_sta *sta; 1831 struct ieee80211_prep_tx_info prep_tx_info; 1832 enum ieee80211_bss_changed bss_changed; 1833 int error; 1834 1835 lhw = vap->iv_ic->ic_softc; 1836 hw = LHW_TO_HW(lhw); 1837 lvif = VAP_TO_LVIF(vap); 1838 vif = LVIF_TO_VIF(lvif); 1839 1840 /* Keep ni around. */ 1841 ni = ieee80211_ref_node(vap->iv_bss); 1842 lsta = ni->ni_drv_data; 1843 sta = LSTA_TO_STA(lsta); 1844 1845 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1846 1847 IEEE80211_UNLOCK(vap->iv_ic); 1848 LKPI_80211_LHW_LOCK(lhw); 1849 1850 /* flush, drop. */ 1851 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1852 1853 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1854 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1855 !lsta->in_mgd) { 1856 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1857 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1858 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1859 lsta->in_mgd = true; 1860 } 1861 1862 LKPI_80211_LHW_UNLOCK(lhw); 1863 IEEE80211_LOCK(vap->iv_ic); 1864 1865 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1866 error = lvif->iv_newstate(vap, nstate, arg); 1867 if (error != 0) { 1868 ic_printf(vap->iv_ic, "%s:%d: iv_newstate(%p, %d, %d) " 1869 "failed: %d\n", __func__, __LINE__, vap, nstate, arg, error); 1870 goto outni; 1871 } 1872 1873 IEEE80211_UNLOCK(vap->iv_ic); 1874 LKPI_80211_LHW_LOCK(lhw); 1875 1876 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1877 1878 /* Wake tx queues to get packet(s) out. */ 1879 lkpi_wake_tx_queues(hw, sta, true, true); 1880 1881 /* flush, no drop */ 1882 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1883 1884 /* End mgd_complete_tx. */ 1885 if (lsta->in_mgd) { 1886 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1887 prep_tx_info.success = false; 1888 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1889 lsta->in_mgd = false; 1890 } 1891 1892 /* sync_rx_queues */ 1893 lkpi_80211_mo_sync_rx_queues(hw); 1894 1895 /* sta_pre_rcu_remove */ 1896 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1897 1898 /* Take the station down. */ 1899 1900 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1901 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1902 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1903 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1904 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1905 if (error != 0) { 1906 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(ASSOC) " 1907 "failed: %d\n", __func__, __LINE__, error); 1908 goto out; 1909 } 1910 1911 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1912 1913 /* Update sta_state (ASSOC to AUTH). */ 1914 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1915 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1916 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1917 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1918 if (error != 0) { 1919 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(AUTH) " 1920 "failed: %d\n", __func__, __LINE__, error); 1921 goto out; 1922 } 1923 1924 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1925 1926 /* Update sta and change state (from AUTH) to NONE. */ 1927 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1928 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1929 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1930 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1931 if (error != 0) { 1932 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NONE) " 1933 "failed: %d\n", __func__, __LINE__, error); 1934 goto out; 1935 } 1936 1937 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1938 1939 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1940 /* 1941 * One would expect this to happen when going off AUTHORIZED. 1942 * See comment there; removes the sta from fw. 1943 */ 1944 lkpi_disassoc(sta, vif, lhw); 1945 1946 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1947 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1948 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1949 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1950 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1951 if (error != 0) { 1952 IMPROVE("do we need to undo the chan ctx?"); 1953 ic_printf(vap->iv_ic, "%s:%d: mo_sta_state(NOTEXIST) " 1954 "failed: %d\n", __func__, __LINE__, error); 1955 goto out; 1956 } 1957 1958 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); /* sta no longer save to use. */ 1959 1960 IMPROVE("Any bss_info changes to announce?"); 1961 bss_changed = 0; 1962 vif->bss_conf.qos = 0; 1963 bss_changed |= BSS_CHANGED_QOS; 1964 vif->cfg.ssid_len = 0; 1965 memset(vif->cfg.ssid, '\0', sizeof(vif->cfg.ssid)); 1966 bss_changed |= BSS_CHANGED_BSSID; 1967 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1968 1969 lkpi_lsta_remove(lsta, lvif); 1970 1971 /* conf_tx */ 1972 1973 /* Take the chan ctx down. */ 1974 if (vif->chanctx_conf != NULL) { 1975 struct lkpi_chanctx *lchanctx; 1976 struct ieee80211_chanctx_conf *conf; 1977 1978 conf = vif->chanctx_conf; 1979 /* Remove vif context. */ 1980 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->bss_conf, &vif->chanctx_conf); 1981 /* NB: vif->chanctx_conf is NULL now. */ 1982 1983 /* Remove chan ctx. */ 1984 lkpi_80211_mo_remove_chanctx(hw, conf); 1985 lchanctx = CHANCTX_CONF_TO_LCHANCTX(conf); 1986 free(lchanctx, M_LKPI80211); 1987 } 1988 1989 error = EALREADY; 1990 out: 1991 LKPI_80211_LHW_UNLOCK(lhw); 1992 IEEE80211_LOCK(vap->iv_ic); 1993 outni: 1994 if (ni != NULL) 1995 ieee80211_free_node(ni); 1996 return (error); 1997 } 1998 1999 static int 2000 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2001 { 2002 2003 return (lkpi_sta_run_to_init(vap, nstate, arg)); 2004 } 2005 2006 static int 2007 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2008 { 2009 int error; 2010 2011 error = lkpi_sta_run_to_init(vap, nstate, arg); 2012 if (error != 0 && error != EALREADY) 2013 return (error); 2014 2015 /* At this point iv_bss is long a new node! */ 2016 2017 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 2018 return (error); 2019 } 2020 2021 /* -------------------------------------------------------------------------- */ 2022 2023 /* 2024 * The matches the documented state changes in net80211::sta_newstate(). 2025 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 2026 * there are "invalid" (so there is a room for failure here). 2027 */ 2028 struct fsm_state { 2029 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 2030 enum ieee80211_state ostate; 2031 enum ieee80211_state nstate; 2032 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 2033 } sta_state_fsm[] = { 2034 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 2035 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 2036 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 2037 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 2038 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 2039 2040 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2041 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 2042 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 2043 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 2044 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 2045 2046 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2047 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 2048 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 2049 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 2050 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 2051 2052 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 2053 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 2054 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 2055 2056 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 2057 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 2058 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 2059 2060 /* Dummy at the end without handler. */ 2061 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 2062 }; 2063 2064 static int 2065 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 2066 { 2067 struct ieee80211com *ic; 2068 struct lkpi_hw *lhw; 2069 struct lkpi_vif *lvif; 2070 struct ieee80211_vif *vif; 2071 struct fsm_state *s; 2072 enum ieee80211_state ostate; 2073 int error; 2074 2075 ic = vap->iv_ic; 2076 IEEE80211_LOCK_ASSERT(ic); 2077 ostate = vap->iv_state; 2078 2079 #ifdef LINUXKPI_DEBUG_80211 2080 if (linuxkpi_debug_80211 & D80211_TRACE) 2081 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2082 __func__, __LINE__, vap, nstate, arg); 2083 #endif 2084 2085 if (vap->iv_opmode == IEEE80211_M_STA) { 2086 2087 lhw = ic->ic_softc; 2088 lvif = VAP_TO_LVIF(vap); 2089 vif = LVIF_TO_VIF(lvif); 2090 2091 /* No need to replicate this in most state handlers. */ 2092 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2093 lkpi_stop_hw_scan(lhw, vif); 2094 2095 s = sta_state_fsm; 2096 2097 } else { 2098 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2099 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2100 return (ENOSYS); 2101 } 2102 2103 error = 0; 2104 for (; s->handler != NULL; s++) { 2105 if (ostate == s->ostate && nstate == s->nstate) { 2106 #ifdef LINUXKPI_DEBUG_80211 2107 if (linuxkpi_debug_80211 & D80211_TRACE) 2108 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2109 " %d (%s): arg %d.\n", __func__, 2110 ostate, ieee80211_state_name[ostate], 2111 nstate, ieee80211_state_name[nstate], arg); 2112 #endif 2113 error = s->handler(vap, nstate, arg); 2114 break; 2115 } 2116 } 2117 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2118 2119 if (s->handler == NULL) { 2120 IMPROVE("turn this into a KASSERT\n"); 2121 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2122 "%d (%s) -> %d (%s)\n", __func__, 2123 ostate, ieee80211_state_name[ostate], 2124 nstate, ieee80211_state_name[nstate]); 2125 return (ENOSYS); 2126 } 2127 2128 if (error == EALREADY) { 2129 #ifdef LINUXKPI_DEBUG_80211 2130 if (linuxkpi_debug_80211 & D80211_TRACE) 2131 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2132 "%d (%s): iv_newstate already handled: %d.\n", 2133 __func__, ostate, ieee80211_state_name[ostate], 2134 nstate, ieee80211_state_name[nstate], error); 2135 #endif 2136 return (0); 2137 } 2138 2139 if (error != 0) { 2140 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2141 "%d (%s) -> %d (%s)\n", __func__, error, 2142 ostate, ieee80211_state_name[ostate], 2143 nstate, ieee80211_state_name[nstate]); 2144 return (error); 2145 } 2146 2147 #ifdef LINUXKPI_DEBUG_80211 2148 if (linuxkpi_debug_80211 & D80211_TRACE) 2149 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2150 "calling net80211 parent\n", 2151 __func__, __LINE__, vap, nstate, arg); 2152 #endif 2153 2154 return (lvif->iv_newstate(vap, nstate, arg)); 2155 } 2156 2157 /* -------------------------------------------------------------------------- */ 2158 2159 /* 2160 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2161 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2162 * new node without us knowing and thus our ni/lsta are out of sync. 2163 */ 2164 static struct ieee80211_node * 2165 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2166 { 2167 struct lkpi_vif *lvif; 2168 struct ieee80211_node *obss; 2169 struct lkpi_sta *lsta; 2170 struct ieee80211_sta *sta; 2171 2172 obss = vap->iv_bss; 2173 2174 #ifdef LINUXKPI_DEBUG_80211 2175 if (linuxkpi_debug_80211 & D80211_TRACE) 2176 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2177 "ni %p ni_drv_data %p\n", __func__, 2178 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2179 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2180 #endif 2181 2182 /* Nothing to copy from. Just return. */ 2183 if (obss == NULL || obss->ni_drv_data == NULL) 2184 goto out; 2185 2186 /* Nothing to copy to. Just return. */ 2187 IMPROVE("clearing the obss might still be needed?"); 2188 if (ni == NULL) 2189 goto out; 2190 2191 /* Nothing changed? panic? */ 2192 if (obss == ni) 2193 goto out; 2194 2195 lsta = obss->ni_drv_data; 2196 obss->ni_drv_data = ni->ni_drv_data; 2197 ni->ni_drv_data = lsta; 2198 if (lsta != NULL) { 2199 lsta->ni = ni; 2200 sta = LSTA_TO_STA(lsta); 2201 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2202 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2203 } 2204 lsta = obss->ni_drv_data; 2205 if (lsta != NULL) { 2206 lsta->ni = obss; 2207 sta = LSTA_TO_STA(lsta); 2208 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2209 IEEE80211_ADDR_COPY(sta->deflink.addr, sta->addr); 2210 } 2211 2212 out: 2213 lvif = VAP_TO_LVIF(vap); 2214 return (lvif->iv_update_bss(vap, ni)); 2215 } 2216 2217 #ifdef LKPI_80211_WME 2218 static int 2219 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2220 { 2221 struct ieee80211com *ic; 2222 struct ieee80211_hw *hw; 2223 struct lkpi_vif *lvif; 2224 struct ieee80211_vif *vif; 2225 struct chanAccParams chp; 2226 struct wmeParams wmeparr[WME_NUM_AC]; 2227 struct ieee80211_tx_queue_params txqp; 2228 enum ieee80211_bss_changed changed; 2229 int error; 2230 uint16_t ac; 2231 2232 IMPROVE(); 2233 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2234 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2235 2236 if (vap == NULL) 2237 return (0); 2238 2239 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2240 return (0); 2241 2242 if (lhw->ops->conf_tx == NULL) 2243 return (0); 2244 2245 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2246 lhw->update_wme = true; 2247 return (0); 2248 } 2249 lhw->update_wme = false; 2250 2251 ic = lhw->ic; 2252 ieee80211_wme_ic_getparams(ic, &chp); 2253 IEEE80211_LOCK(ic); 2254 for (ac = 0; ac < WME_NUM_AC; ac++) 2255 wmeparr[ac] = chp.cap_wmeParams[ac]; 2256 IEEE80211_UNLOCK(ic); 2257 2258 hw = LHW_TO_HW(lhw); 2259 lvif = VAP_TO_LVIF(vap); 2260 vif = LVIF_TO_VIF(lvif); 2261 2262 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2263 LKPI_80211_LHW_LOCK(lhw); 2264 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2265 struct wmeParams *wmep; 2266 2267 wmep = &wmeparr[ac]; 2268 bzero(&txqp, sizeof(txqp)); 2269 txqp.cw_min = wmep->wmep_logcwmin; 2270 txqp.cw_max = wmep->wmep_logcwmax; 2271 txqp.txop = wmep->wmep_txopLimit; 2272 txqp.aifs = wmep->wmep_aifsn; 2273 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2274 if (error != 0) 2275 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2276 __func__, ac, error); 2277 } 2278 LKPI_80211_LHW_UNLOCK(lhw); 2279 changed = BSS_CHANGED_QOS; 2280 if (!planned) 2281 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2282 2283 return (changed); 2284 } 2285 #endif 2286 2287 static int 2288 lkpi_ic_wme_update(struct ieee80211com *ic) 2289 { 2290 #ifdef LKPI_80211_WME 2291 struct ieee80211vap *vap; 2292 struct lkpi_hw *lhw; 2293 2294 IMPROVE("Use the per-VAP callback in net80211."); 2295 vap = TAILQ_FIRST(&ic->ic_vaps); 2296 if (vap == NULL) 2297 return (0); 2298 2299 lhw = ic->ic_softc; 2300 2301 lkpi_wme_update(lhw, vap, false); 2302 #endif 2303 return (0); /* unused */ 2304 } 2305 2306 static struct ieee80211vap * 2307 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2308 int unit, enum ieee80211_opmode opmode, int flags, 2309 const uint8_t bssid[IEEE80211_ADDR_LEN], 2310 const uint8_t mac[IEEE80211_ADDR_LEN]) 2311 { 2312 struct lkpi_hw *lhw; 2313 struct ieee80211_hw *hw; 2314 struct lkpi_vif *lvif; 2315 struct ieee80211vap *vap; 2316 struct ieee80211_vif *vif; 2317 struct ieee80211_tx_queue_params txqp; 2318 enum ieee80211_bss_changed changed; 2319 size_t len; 2320 int error, i; 2321 uint16_t ac; 2322 2323 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2324 return (NULL); 2325 2326 lhw = ic->ic_softc; 2327 hw = LHW_TO_HW(lhw); 2328 2329 len = sizeof(*lvif); 2330 len += hw->vif_data_size; /* vif->drv_priv */ 2331 2332 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2333 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2334 TAILQ_INIT(&lvif->lsta_head); 2335 vap = LVIF_TO_VAP(lvif); 2336 2337 vif = LVIF_TO_VIF(lvif); 2338 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2339 vif->p2p = false; 2340 vif->probe_req_reg = false; 2341 vif->type = lkpi_opmode_to_vif_type(opmode); 2342 lvif->wdev.iftype = vif->type; 2343 /* Need to fill in other fields as well. */ 2344 IMPROVE(); 2345 2346 /* XXX-BZ hardcoded for now! */ 2347 #if 1 2348 vif->chanctx_conf = NULL; 2349 vif->bss_conf.vif = vif; 2350 /* vap->iv_myaddr is not set until net80211::vap_setup or vap_attach. */ 2351 IEEE80211_ADDR_COPY(vif->bss_conf.addr, mac); 2352 vif->bss_conf.link_id = 0; /* Non-MLO operation. */ 2353 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2354 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2355 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2356 vif->bss_conf.qos = false; 2357 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2358 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2359 vif->cfg.aid = 0; 2360 vif->cfg.assoc = false; 2361 vif->cfg.idle = true; 2362 vif->cfg.ps = false; 2363 IMPROVE("Check other fields and then figure out whats is left elsewhere of them"); 2364 /* 2365 * We need to initialize it to something as the bss_info_changed call 2366 * will try to copy from it in iwlwifi and NULL is a panic. 2367 * We will set the proper one in scan_to_auth() before being assoc. 2368 */ 2369 vif->bss_conf.bssid = ieee80211broadcastaddr; 2370 #endif 2371 #if 0 2372 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2373 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2374 vif->bss_conf.beacon_int = ic->ic_bintval; 2375 /* iwlwifi bug. */ 2376 if (vif->bss_conf.beacon_int < 16) 2377 vif->bss_conf.beacon_int = 16; 2378 #endif 2379 2380 /* Link Config */ 2381 vif->link_conf[0] = &vif->bss_conf; 2382 for (i = 0; i < nitems(vif->link_conf); i++) { 2383 IMPROVE("more than 1 link one day"); 2384 } 2385 2386 /* Setup queue defaults; driver may override in (*add_interface). */ 2387 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2388 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2389 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2390 else if (hw->queues >= IEEE80211_NUM_ACS) 2391 vif->hw_queue[i] = i; 2392 else 2393 vif->hw_queue[i] = 0; 2394 2395 /* Initialize the queue to running. Stopped? */ 2396 lvif->hw_queue_stopped[i] = false; 2397 } 2398 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2399 2400 IMPROVE(); 2401 2402 error = lkpi_80211_mo_start(hw); 2403 if (error != 0) { 2404 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2405 mtx_destroy(&lvif->mtx); 2406 free(lvif, M_80211_VAP); 2407 return (NULL); 2408 } 2409 2410 error = lkpi_80211_mo_add_interface(hw, vif); 2411 if (error != 0) { 2412 IMPROVE(); /* XXX-BZ mo_stop()? */ 2413 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2414 mtx_destroy(&lvif->mtx); 2415 free(lvif, M_80211_VAP); 2416 return (NULL); 2417 } 2418 2419 LKPI_80211_LHW_LVIF_LOCK(lhw); 2420 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2421 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2422 2423 /* Set bss_info. */ 2424 changed = 0; 2425 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2426 2427 /* Configure tx queues (conf_tx), default WME & send BSS_CHANGED_QOS. */ 2428 IMPROVE("Hardcoded values; to fix see 802.11-2016, 9.4.2.29 EDCA Parameter Set element"); 2429 LKPI_80211_LHW_LOCK(lhw); 2430 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2431 2432 bzero(&txqp, sizeof(txqp)); 2433 txqp.cw_min = 15; 2434 txqp.cw_max = 1023; 2435 txqp.txop = 0; 2436 txqp.aifs = 2; 2437 error = lkpi_80211_mo_conf_tx(hw, vif, /* link_id */0, ac, &txqp); 2438 if (error != 0) 2439 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2440 __func__, ac, error); 2441 } 2442 LKPI_80211_LHW_UNLOCK(lhw); 2443 changed = BSS_CHANGED_QOS; 2444 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2445 2446 /* Force MC init. */ 2447 lkpi_update_mcast_filter(ic, true); 2448 2449 IMPROVE(); 2450 2451 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2452 2453 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2454 lvif->iv_newstate = vap->iv_newstate; 2455 vap->iv_newstate = lkpi_iv_newstate; 2456 lvif->iv_update_bss = vap->iv_update_bss; 2457 vap->iv_update_bss = lkpi_iv_update_bss; 2458 2459 /* Key management. */ 2460 if (lhw->ops->set_key != NULL) { 2461 #ifdef LKPI_80211_HW_CRYPTO 2462 vap->iv_key_set = lkpi_iv_key_set; 2463 vap->iv_key_delete = lkpi_iv_key_delete; 2464 #endif 2465 } 2466 2467 ieee80211_ratectl_init(vap); 2468 2469 /* Complete setup. */ 2470 ieee80211_vap_attach(vap, ieee80211_media_change, 2471 ieee80211_media_status, mac); 2472 2473 if (hw->max_listen_interval == 0) 2474 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2475 hw->conf.listen_interval = hw->max_listen_interval; 2476 ic->ic_set_channel(ic); 2477 2478 /* XXX-BZ do we need to be able to update these? */ 2479 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2480 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2481 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2482 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2483 /* any others? */ 2484 IMPROVE(); 2485 2486 return (vap); 2487 } 2488 2489 void 2490 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2491 { 2492 2493 wiphy_unregister(hw->wiphy); 2494 linuxkpi_ieee80211_ifdetach(hw); 2495 2496 IMPROVE(); 2497 } 2498 2499 void 2500 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2501 { 2502 2503 TODO(); 2504 } 2505 2506 static void 2507 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2508 { 2509 struct ieee80211com *ic; 2510 struct lkpi_hw *lhw; 2511 struct ieee80211_hw *hw; 2512 struct lkpi_vif *lvif; 2513 struct ieee80211_vif *vif; 2514 2515 lvif = VAP_TO_LVIF(vap); 2516 vif = LVIF_TO_VIF(lvif); 2517 ic = vap->iv_ic; 2518 lhw = ic->ic_softc; 2519 hw = LHW_TO_HW(lhw); 2520 2521 LKPI_80211_LHW_LVIF_LOCK(lhw); 2522 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2523 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2524 2525 ieee80211_ratectl_deinit(vap); 2526 ieee80211_vap_detach(vap); 2527 2528 IMPROVE("clear up other bits in this state"); 2529 2530 lkpi_80211_mo_remove_interface(hw, vif); 2531 2532 /* Single VAP, so we can do this here. */ 2533 lkpi_80211_mo_stop(hw); 2534 2535 mtx_destroy(&lvif->mtx); 2536 free(lvif, M_80211_VAP); 2537 } 2538 2539 static void 2540 lkpi_ic_update_mcast(struct ieee80211com *ic) 2541 { 2542 2543 lkpi_update_mcast_filter(ic, false); 2544 TRACEOK(); 2545 } 2546 2547 static void 2548 lkpi_ic_update_promisc(struct ieee80211com *ic) 2549 { 2550 2551 UNIMPLEMENTED; 2552 } 2553 2554 static void 2555 lkpi_ic_update_chw(struct ieee80211com *ic) 2556 { 2557 2558 UNIMPLEMENTED; 2559 } 2560 2561 /* Start / stop device. */ 2562 static void 2563 lkpi_ic_parent(struct ieee80211com *ic) 2564 { 2565 struct lkpi_hw *lhw; 2566 #ifdef HW_START_STOP 2567 struct ieee80211_hw *hw; 2568 int error; 2569 #endif 2570 bool start_all; 2571 2572 IMPROVE(); 2573 2574 lhw = ic->ic_softc; 2575 #ifdef HW_START_STOP 2576 hw = LHW_TO_HW(lhw); 2577 #endif 2578 start_all = false; 2579 2580 /* IEEE80211_UNLOCK(ic); */ 2581 LKPI_80211_LHW_LOCK(lhw); 2582 if (ic->ic_nrunning > 0) { 2583 #ifdef HW_START_STOP 2584 error = lkpi_80211_mo_start(hw); 2585 if (error == 0) 2586 #endif 2587 start_all = true; 2588 } else { 2589 #ifdef HW_START_STOP 2590 lkpi_80211_mo_stop(hw); 2591 #endif 2592 } 2593 LKPI_80211_LHW_UNLOCK(lhw); 2594 /* IEEE80211_LOCK(ic); */ 2595 2596 if (start_all) 2597 ieee80211_start_all(ic); 2598 } 2599 2600 bool 2601 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2602 size_t ie_ids_len) 2603 { 2604 int i; 2605 2606 for (i = 0; i < ie_ids_len; i++) { 2607 if (ie == *ie_ids) 2608 return (true); 2609 } 2610 2611 return (false); 2612 } 2613 2614 /* Return true if skipped; false if error. */ 2615 bool 2616 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2617 { 2618 size_t x; 2619 uint8_t l; 2620 2621 x = *xp; 2622 2623 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2624 __func__, x, ies_len, ies)); 2625 l = ies[x + 1]; 2626 x += 2 + l; 2627 2628 if (x > ies_len) 2629 return (false); 2630 2631 *xp = x; 2632 return (true); 2633 } 2634 2635 static uint8_t * 2636 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2637 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2638 { 2639 struct ieee80211_supported_band *supband; 2640 struct linuxkpi_ieee80211_channel *channels; 2641 struct ieee80211com *ic; 2642 const struct ieee80211_channel *chan; 2643 const struct ieee80211_rateset *rs; 2644 uint8_t *pb; 2645 int band, i; 2646 2647 ic = vap->iv_ic; 2648 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2649 if ((band_mask & (1 << band)) == 0) 2650 continue; 2651 2652 supband = hw->wiphy->bands[band]; 2653 /* 2654 * This should not happen; 2655 * band_mask is a bitmask of valid bands to scan on. 2656 */ 2657 if (supband == NULL || supband->n_channels == 0) 2658 continue; 2659 2660 /* Find a first channel to get the mode and rates from. */ 2661 channels = supband->channels; 2662 chan = NULL; 2663 for (i = 0; i < supband->n_channels; i++) { 2664 2665 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2666 continue; 2667 2668 chan = ieee80211_find_channel(ic, 2669 channels[i].center_freq, 0); 2670 if (chan != NULL) 2671 break; 2672 } 2673 2674 /* This really should not happen. */ 2675 if (chan == NULL) 2676 continue; 2677 2678 pb = p; 2679 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 2680 p = ieee80211_add_rates(p, rs); 2681 p = ieee80211_add_xrates(p, rs); 2682 2683 #if defined(LKPI_80211_HT) 2684 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 2685 struct ieee80211_channel *c; 2686 2687 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2688 vap->iv_flags_ht); 2689 p = ieee80211_add_htcap_ch(p, vap, c); 2690 } 2691 #endif 2692 #if defined(LKPI_80211_VHT) 2693 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 2694 struct ieee80211_channel *c; 2695 2696 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2697 vap->iv_flags_ht); 2698 c = ieee80211_vht_adjust_channel(ic, c, 2699 vap->iv_vht_flags); 2700 p = ieee80211_add_vhtcap_ch(p, vap, c); 2701 } 2702 #endif 2703 2704 scan_ies->ies[band] = pb; 2705 scan_ies->len[band] = p - pb; 2706 } 2707 2708 /* Add common_ies */ 2709 pb = p; 2710 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2711 vap->iv_wpa_ie != NULL) { 2712 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2713 p += 2 + vap->iv_wpa_ie[1]; 2714 } 2715 if (vap->iv_appie_probereq != NULL) { 2716 memcpy(p, vap->iv_appie_probereq->ie_data, 2717 vap->iv_appie_probereq->ie_len); 2718 p += vap->iv_appie_probereq->ie_len; 2719 } 2720 scan_ies->common_ies = pb; 2721 scan_ies->common_ie_len = p - pb; 2722 2723 return (p); 2724 } 2725 2726 static void 2727 lkpi_ic_scan_start(struct ieee80211com *ic) 2728 { 2729 struct lkpi_hw *lhw; 2730 struct ieee80211_hw *hw; 2731 struct lkpi_vif *lvif; 2732 struct ieee80211_vif *vif; 2733 struct ieee80211_scan_state *ss; 2734 struct ieee80211vap *vap; 2735 int error; 2736 bool is_hw_scan; 2737 2738 lhw = ic->ic_softc; 2739 LKPI_80211_LHW_SCAN_LOCK(lhw); 2740 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2741 /* A scan is still running. */ 2742 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2743 return; 2744 } 2745 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2746 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2747 2748 ss = ic->ic_scan; 2749 vap = ss->ss_vap; 2750 if (vap->iv_state != IEEE80211_S_SCAN) { 2751 IMPROVE("We need to be able to scan if not in S_SCAN"); 2752 return; 2753 } 2754 2755 hw = LHW_TO_HW(lhw); 2756 if (!is_hw_scan) { 2757 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2758 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2759 sw_scan: 2760 lvif = VAP_TO_LVIF(vap); 2761 vif = LVIF_TO_VIF(lvif); 2762 2763 if (vap->iv_state == IEEE80211_S_SCAN) 2764 lkpi_hw_conf_idle(hw, false); 2765 2766 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2767 /* net80211::scan_start() handled PS for us. */ 2768 IMPROVE(); 2769 /* XXX Also means it is too late to flush queues? 2770 * need to check iv_sta_ps or overload? */ 2771 /* XXX want to adjust ss end time/ maxdwell? */ 2772 2773 } else { 2774 struct ieee80211_channel *c; 2775 struct ieee80211_scan_request *hw_req; 2776 struct linuxkpi_ieee80211_channel *lc, **cpp; 2777 struct cfg80211_ssid *ssids; 2778 struct cfg80211_scan_6ghz_params *s6gp; 2779 size_t chan_len, nchan, ssids_len, s6ghzlen; 2780 int band, i, ssid_count, common_ie_len; 2781 uint32_t band_mask; 2782 uint8_t *ie, *ieend; 2783 bool running; 2784 2785 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2786 ssids_len = ssid_count * sizeof(*ssids); 2787 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2788 2789 band_mask = 0; 2790 nchan = 0; 2791 for (i = ss->ss_next; i < ss->ss_last; i++) { 2792 nchan++; 2793 band = lkpi_net80211_chan_to_nl80211_band( 2794 ss->ss_chans[ss->ss_next + i]); 2795 band_mask |= (1 << band); 2796 } 2797 2798 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2799 IMPROVE("individual band scans not yet supported, only scanning first band"); 2800 /* In theory net80211 should drive this. */ 2801 /* Probably we need to add local logic for now; 2802 * need to deal with scan_complete 2803 * and cancel_scan and keep local state. 2804 * Also cut the nchan down above. 2805 */ 2806 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 2807 } 2808 2809 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2810 2811 common_ie_len = 0; 2812 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2813 vap->iv_wpa_ie != NULL) 2814 common_ie_len += vap->iv_wpa_ie[1]; 2815 if (vap->iv_appie_probereq != NULL) 2816 common_ie_len += vap->iv_appie_probereq->ie_len; 2817 2818 /* We would love to check this at an earlier stage... */ 2819 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2820 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2821 "wiphy->max_scan_ie_len %d\n", __func__, 2822 common_ie_len, hw->wiphy->max_scan_ie_len); 2823 } 2824 2825 hw_req = malloc(sizeof(*hw_req) + ssids_len + 2826 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2827 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2828 2829 hw_req->req.flags = 0; /* XXX ??? */ 2830 /* hw_req->req.wdev */ 2831 hw_req->req.wiphy = hw->wiphy; 2832 hw_req->req.no_cck = false; /* XXX */ 2833 #if 0 2834 /* This seems to pessimise default scanning behaviour. */ 2835 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2836 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2837 #endif 2838 #ifdef __notyet__ 2839 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2840 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2841 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2842 #endif 2843 eth_broadcast_addr(hw_req->req.bssid); 2844 2845 hw_req->req.n_channels = nchan; 2846 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2847 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2848 for (i = 0; i < nchan; i++) { 2849 *(cpp + i) = 2850 (struct linuxkpi_ieee80211_channel *)(lc + i); 2851 } 2852 for (i = 0; i < nchan; i++) { 2853 c = ss->ss_chans[ss->ss_next + i]; 2854 2855 lc->hw_value = c->ic_ieee; 2856 lc->center_freq = c->ic_freq; /* XXX */ 2857 /* lc->flags */ 2858 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2859 lc->max_power = c->ic_maxpower; 2860 /* lc-> ... */ 2861 lc++; 2862 } 2863 2864 hw_req->req.n_ssids = ssid_count; 2865 if (hw_req->req.n_ssids > 0) { 2866 ssids = (struct cfg80211_ssid *)lc; 2867 hw_req->req.ssids = ssids; 2868 for (i = 0; i < ssid_count; i++) { 2869 ssids->ssid_len = ss->ss_ssid[i].len; 2870 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2871 ss->ss_ssid[i].len); 2872 ssids++; 2873 } 2874 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2875 } else { 2876 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2877 } 2878 2879 /* 6GHz one day. */ 2880 hw_req->req.n_6ghz_params = 0; 2881 hw_req->req.scan_6ghz_params = NULL; 2882 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2883 /* s6gp->... */ 2884 2885 ie = ieend = (uint8_t *)s6gp; 2886 /* Copy per-band IEs, copy common IEs */ 2887 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2888 hw_req->req.ie = ie; 2889 hw_req->req.ie_len = ieend - ie; 2890 2891 lvif = VAP_TO_LVIF(vap); 2892 vif = LVIF_TO_VIF(lvif); 2893 2894 LKPI_80211_LHW_SCAN_LOCK(lhw); 2895 /* Re-check under lock. */ 2896 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2897 if (!running) { 2898 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2899 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2900 2901 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 2902 lhw->hw_req = hw_req; 2903 } 2904 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2905 if (running) { 2906 free(hw_req, M_LKPI80211); 2907 return; 2908 } 2909 2910 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2911 if (error != 0) { 2912 ieee80211_cancel_scan(vap); 2913 2914 /* 2915 * ieee80211_scan_completed must be called in either 2916 * case of error or none. So let the free happen there 2917 * and only there. 2918 * That would be fine in theory but in practice drivers 2919 * behave differently: 2920 * ath10k does not return hw_scan until after scan_complete 2921 * and can then still return an error. 2922 * rtw88 can return 1 or -EBUSY without scan_complete 2923 * iwlwifi can return various errors before scan starts 2924 * ... 2925 * So we cannot rely on that behaviour and have to check 2926 * and balance between both code paths. 2927 */ 2928 LKPI_80211_LHW_SCAN_LOCK(lhw); 2929 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2930 free(lhw->hw_req, M_LKPI80211); 2931 lhw->hw_req = NULL; 2932 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 2933 } 2934 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2935 2936 /* 2937 * XXX-SIGH magic number. 2938 * rtw88 has a magic "return 1" if offloading scan is 2939 * not possible. Fall back to sw scan in that case. 2940 */ 2941 if (error == 1) { 2942 LKPI_80211_LHW_SCAN_LOCK(lhw); 2943 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 2944 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2945 /* 2946 * XXX If we clear this now and later a driver 2947 * thinks it * can do a hw_scan again, we will 2948 * currently not re-enable it? 2949 */ 2950 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2951 ieee80211_start_scan(vap, 2952 IEEE80211_SCAN_ACTIVE | 2953 IEEE80211_SCAN_NOPICK | 2954 IEEE80211_SCAN_ONCE, 2955 IEEE80211_SCAN_FOREVER, 2956 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2957 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2958 vap->iv_des_nssid, vap->iv_des_ssid); 2959 goto sw_scan; 2960 } 2961 2962 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2963 __func__, error); 2964 } 2965 } 2966 } 2967 2968 static void 2969 lkpi_ic_scan_end(struct ieee80211com *ic) 2970 { 2971 struct lkpi_hw *lhw; 2972 bool is_hw_scan; 2973 2974 lhw = ic->ic_softc; 2975 LKPI_80211_LHW_SCAN_LOCK(lhw); 2976 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 2977 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2978 return; 2979 } 2980 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2981 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2982 2983 if (!is_hw_scan) { 2984 struct ieee80211_scan_state *ss; 2985 struct ieee80211vap *vap; 2986 struct ieee80211_hw *hw; 2987 struct lkpi_vif *lvif; 2988 struct ieee80211_vif *vif; 2989 2990 ss = ic->ic_scan; 2991 vap = ss->ss_vap; 2992 hw = LHW_TO_HW(lhw); 2993 lvif = VAP_TO_LVIF(vap); 2994 vif = LVIF_TO_VIF(lvif); 2995 2996 lkpi_80211_mo_sw_scan_complete(hw, vif); 2997 2998 /* Send PS to stop buffering if n80211 does not for us? */ 2999 3000 if (vap->iv_state == IEEE80211_S_SCAN) 3001 lkpi_hw_conf_idle(hw, true); 3002 } 3003 } 3004 3005 static void 3006 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 3007 unsigned long maxdwell) 3008 { 3009 struct lkpi_hw *lhw; 3010 bool is_hw_scan; 3011 3012 lhw = ss->ss_ic->ic_softc; 3013 LKPI_80211_LHW_SCAN_LOCK(lhw); 3014 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3015 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3016 if (!is_hw_scan) 3017 lhw->ic_scan_curchan(ss, maxdwell); 3018 } 3019 3020 static void 3021 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 3022 { 3023 struct lkpi_hw *lhw; 3024 bool is_hw_scan; 3025 3026 lhw = ss->ss_ic->ic_softc; 3027 LKPI_80211_LHW_SCAN_LOCK(lhw); 3028 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 3029 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3030 if (!is_hw_scan) 3031 lhw->ic_scan_mindwell(ss); 3032 } 3033 3034 static void 3035 lkpi_ic_set_channel(struct ieee80211com *ic) 3036 { 3037 struct lkpi_hw *lhw; 3038 struct ieee80211_hw *hw; 3039 struct ieee80211_channel *c; 3040 struct linuxkpi_ieee80211_channel *chan; 3041 int error; 3042 bool hw_scan_running; 3043 3044 lhw = ic->ic_softc; 3045 3046 /* If we do not support (*config)() save us the work. */ 3047 if (lhw->ops->config == NULL) 3048 return; 3049 3050 /* If we have a hw_scan running do not switch channels. */ 3051 LKPI_80211_LHW_SCAN_LOCK(lhw); 3052 hw_scan_running = 3053 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 3054 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 3055 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3056 if (hw_scan_running) 3057 return; 3058 3059 c = ic->ic_curchan; 3060 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 3061 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 3062 c, lhw->ops->config); 3063 return; 3064 } 3065 3066 chan = lkpi_find_lkpi80211_chan(lhw, c); 3067 if (chan == NULL) { 3068 ic_printf(ic, "%s: c %p chan %p\n", __func__, 3069 c, chan); 3070 return; 3071 } 3072 3073 /* XXX max power for scanning? */ 3074 IMPROVE(); 3075 3076 hw = LHW_TO_HW(lhw); 3077 cfg80211_chandef_create(&hw->conf.chandef, chan, 3078 NL80211_CHAN_NO_HT); 3079 3080 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 3081 if (error != 0 && error != EOPNOTSUPP) { 3082 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 3083 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 3084 /* XXX should we unroll to the previous chandef? */ 3085 IMPROVE(); 3086 } else { 3087 /* Update radiotap channels as well. */ 3088 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 3089 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 3090 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 3091 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 3092 } 3093 3094 /* Currently PS is hard coded off! Not sure it belongs here. */ 3095 IMPROVE(); 3096 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 3097 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 3098 hw->conf.flags &= ~IEEE80211_CONF_PS; 3099 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 3100 if (error != 0 && error != EOPNOTSUPP) 3101 ic_printf(ic, "ERROR: %s: config %#0x returned " 3102 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 3103 error); 3104 } 3105 } 3106 3107 static struct ieee80211_node * 3108 lkpi_ic_node_alloc(struct ieee80211vap *vap, 3109 const uint8_t mac[IEEE80211_ADDR_LEN]) 3110 { 3111 struct ieee80211com *ic; 3112 struct lkpi_hw *lhw; 3113 struct ieee80211_node *ni; 3114 struct ieee80211_hw *hw; 3115 struct lkpi_sta *lsta; 3116 3117 ic = vap->iv_ic; 3118 lhw = ic->ic_softc; 3119 3120 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3121 if (lhw->ic_node_alloc == NULL) 3122 return (NULL); 3123 3124 ni = lhw->ic_node_alloc(vap, mac); 3125 if (ni == NULL) 3126 return (NULL); 3127 3128 hw = LHW_TO_HW(lhw); 3129 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3130 if (lsta == NULL) { 3131 if (lhw->ic_node_free != NULL) 3132 lhw->ic_node_free(ni); 3133 return (NULL); 3134 } 3135 3136 return (ni); 3137 } 3138 3139 static int 3140 lkpi_ic_node_init(struct ieee80211_node *ni) 3141 { 3142 struct ieee80211com *ic; 3143 struct lkpi_hw *lhw; 3144 struct lkpi_sta *lsta; 3145 int error; 3146 3147 ic = ni->ni_ic; 3148 lhw = ic->ic_softc; 3149 3150 if (lhw->ic_node_init != NULL) { 3151 error = lhw->ic_node_init(ni); 3152 if (error != 0) 3153 return (error); 3154 } 3155 3156 lsta = ni->ni_drv_data; 3157 3158 /* Now take the reference before linking it to the table. */ 3159 lsta->ni = ieee80211_ref_node(ni); 3160 3161 /* XXX-BZ Sync other state over. */ 3162 IMPROVE(); 3163 3164 return (0); 3165 } 3166 3167 static void 3168 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3169 { 3170 struct ieee80211com *ic; 3171 struct lkpi_hw *lhw; 3172 3173 ic = ni->ni_ic; 3174 lhw = ic->ic_softc; 3175 3176 /* XXX-BZ remove from driver, ... */ 3177 IMPROVE(); 3178 3179 if (lhw->ic_node_cleanup != NULL) 3180 lhw->ic_node_cleanup(ni); 3181 } 3182 3183 static void 3184 lkpi_ic_node_free(struct ieee80211_node *ni) 3185 { 3186 struct ieee80211com *ic; 3187 struct lkpi_hw *lhw; 3188 struct lkpi_sta *lsta; 3189 3190 ic = ni->ni_ic; 3191 lhw = ic->ic_softc; 3192 lsta = ni->ni_drv_data; 3193 if (lsta == NULL) 3194 goto out; 3195 3196 /* XXX-BZ free resources, ... */ 3197 IMPROVE(); 3198 3199 /* Flush mbufq (make sure to release ni refs!). */ 3200 #ifdef __notyet__ 3201 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 3202 __func__, lsta, mbufq_len(&lsta->txq))); 3203 #endif 3204 /* Drain taskq. */ 3205 3206 /* Drain sta->txq[] */ 3207 mtx_destroy(&lsta->txq_mtx); 3208 3209 /* Remove lsta if added_to_drv. */ 3210 3211 /* Remove lsta from vif */ 3212 /* Remove ref from lsta node... */ 3213 /* Free lsta. */ 3214 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 3215 3216 out: 3217 if (lhw->ic_node_free != NULL) 3218 lhw->ic_node_free(ni); 3219 } 3220 3221 static int 3222 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3223 const struct ieee80211_bpf_params *params __unused) 3224 { 3225 struct lkpi_sta *lsta; 3226 3227 lsta = ni->ni_drv_data; 3228 3229 /* Queue the packet and enqueue the task to handle it. */ 3230 LKPI_80211_LSTA_LOCK(lsta); 3231 mbufq_enqueue(&lsta->txq, m); 3232 LKPI_80211_LSTA_UNLOCK(lsta); 3233 3234 #ifdef LINUXKPI_DEBUG_80211 3235 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3236 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3237 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3238 mbufq_len(&lsta->txq)); 3239 #endif 3240 3241 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3242 return (0); 3243 } 3244 3245 static void 3246 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3247 { 3248 struct ieee80211_node *ni; 3249 #ifndef LKPI_80211_HW_CRYPTO 3250 struct ieee80211_frame *wh; 3251 #endif 3252 struct ieee80211_key *k; 3253 struct sk_buff *skb; 3254 struct ieee80211com *ic; 3255 struct lkpi_hw *lhw; 3256 struct ieee80211_hw *hw; 3257 struct lkpi_vif *lvif; 3258 struct ieee80211_vif *vif; 3259 struct ieee80211_channel *c; 3260 struct ieee80211_tx_control control; 3261 struct ieee80211_tx_info *info; 3262 struct ieee80211_sta *sta; 3263 struct ieee80211_hdr *hdr; 3264 void *buf; 3265 uint8_t ac, tid; 3266 3267 M_ASSERTPKTHDR(m); 3268 #ifdef LINUXKPI_DEBUG_80211 3269 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3270 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3271 #endif 3272 3273 ni = lsta->ni; 3274 k = NULL; 3275 #ifndef LKPI_80211_HW_CRYPTO 3276 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3277 wh = mtod(m, struct ieee80211_frame *); 3278 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3279 /* Retrieve key for TX && do software encryption. */ 3280 k = ieee80211_crypto_encap(ni, m); 3281 if (k == NULL) { 3282 ieee80211_free_node(ni); 3283 m_freem(m); 3284 return; 3285 } 3286 } 3287 #endif 3288 3289 ic = ni->ni_ic; 3290 lhw = ic->ic_softc; 3291 hw = LHW_TO_HW(lhw); 3292 c = ni->ni_chan; 3293 3294 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3295 struct lkpi_radiotap_tx_hdr *rtap; 3296 3297 rtap = &lhw->rtap_tx; 3298 rtap->wt_flags = 0; 3299 if (k != NULL) 3300 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3301 if (m->m_flags & M_FRAG) 3302 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3303 IMPROVE(); 3304 rtap->wt_rate = 0; 3305 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3306 rtap->wt_chan_freq = htole16(c->ic_freq); 3307 rtap->wt_chan_flags = htole16(c->ic_flags); 3308 } 3309 3310 ieee80211_radiotap_tx(ni->ni_vap, m); 3311 } 3312 3313 /* 3314 * net80211 should handle hw->extra_tx_headroom. 3315 * Though for as long as we are copying we don't mind. 3316 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3317 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3318 */ 3319 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3320 if (skb == NULL) { 3321 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3322 ieee80211_free_node(ni); 3323 m_freem(m); 3324 return; 3325 } 3326 skb_reserve(skb, hw->extra_tx_headroom); 3327 3328 /* XXX-BZ we need a SKB version understanding mbuf. */ 3329 /* Save the mbuf for ieee80211_tx_complete(). */ 3330 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3331 skb->m = m; 3332 #if 0 3333 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3334 #else 3335 buf = skb_put(skb, m->m_pkthdr.len); 3336 m_copydata(m, 0, m->m_pkthdr.len, buf); 3337 #endif 3338 /* Save the ni. */ 3339 m->m_pkthdr.PH_loc.ptr = ni; 3340 3341 lvif = VAP_TO_LVIF(ni->ni_vap); 3342 vif = LVIF_TO_VIF(lvif); 3343 3344 hdr = (void *)skb->data; 3345 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3346 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3347 skb->priority = 0; 3348 ac = IEEE80211_AC_BE; 3349 } else { 3350 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3351 ac = ieee80211e_up_to_ac[tid & 7]; 3352 } 3353 skb_set_queue_mapping(skb, ac); 3354 3355 info = IEEE80211_SKB_CB(skb); 3356 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3357 /* Slight delay; probably only happens on scanning so fine? */ 3358 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3359 c = ic->ic_curchan; 3360 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3361 info->hw_queue = vif->hw_queue[ac]; 3362 if (m->m_flags & M_EAPOL) 3363 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3364 info->control.vif = vif; 3365 /* XXX-BZ info->control.rates */ 3366 3367 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3368 if (lsta != NULL) { 3369 sta = LSTA_TO_STA(lsta); 3370 #ifdef LKPI_80211_HW_CRYPTO 3371 info->control.hw_key = lsta->kc; 3372 #endif 3373 } else { 3374 sta = NULL; 3375 } 3376 3377 IMPROVE(); 3378 3379 if (sta != NULL) { 3380 struct lkpi_txq *ltxq; 3381 3382 ltxq = NULL; 3383 if (!ieee80211_is_data_present(hdr->frame_control)) { 3384 if (vif->type == NL80211_IFTYPE_STATION && 3385 lsta->added_to_drv && 3386 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3387 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3388 } else if (lsta->added_to_drv && 3389 sta->txq[skb->priority] != NULL) { 3390 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3391 } 3392 if (ltxq == NULL) 3393 goto ops_tx; 3394 3395 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3396 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3397 3398 skb_queue_tail(<xq->skbq, skb); 3399 #ifdef LINUXKPI_DEBUG_80211 3400 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3401 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3402 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3403 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3404 __func__, __LINE__, 3405 curthread->td_tid, (unsigned int)ticks, 3406 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3407 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3408 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3409 #endif 3410 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3411 return; 3412 } 3413 3414 ops_tx: 3415 #ifdef LINUXKPI_DEBUG_80211 3416 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3417 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3418 "TX ac %d prio %u qmap %u\n", 3419 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3420 skb, ac, skb->priority, skb->qmap); 3421 #endif 3422 memset(&control, 0, sizeof(control)); 3423 control.sta = sta; 3424 3425 lkpi_80211_mo_tx(hw, &control, skb); 3426 return; 3427 } 3428 3429 static void 3430 lkpi_80211_txq_task(void *ctx, int pending) 3431 { 3432 struct lkpi_sta *lsta; 3433 struct mbufq mq; 3434 struct mbuf *m; 3435 3436 lsta = ctx; 3437 3438 #ifdef LINUXKPI_DEBUG_80211 3439 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3440 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3441 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3442 pending, mbufq_len(&lsta->txq)); 3443 #endif 3444 3445 mbufq_init(&mq, IFQ_MAXLEN); 3446 3447 LKPI_80211_LSTA_LOCK(lsta); 3448 mbufq_concat(&mq, &lsta->txq); 3449 LKPI_80211_LSTA_UNLOCK(lsta); 3450 3451 m = mbufq_dequeue(&mq); 3452 while (m != NULL) { 3453 lkpi_80211_txq_tx_one(lsta, m); 3454 m = mbufq_dequeue(&mq); 3455 } 3456 } 3457 3458 static int 3459 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3460 { 3461 3462 /* XXX TODO */ 3463 IMPROVE(); 3464 3465 /* Quick and dirty cheating hack. */ 3466 struct ieee80211_node *ni; 3467 3468 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3469 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3470 } 3471 3472 static void 3473 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3474 int *n, struct ieee80211_channel *c) 3475 { 3476 struct lkpi_hw *lhw; 3477 struct ieee80211_hw *hw; 3478 struct linuxkpi_ieee80211_channel *channels; 3479 uint8_t bands[IEEE80211_MODE_BYTES]; 3480 int chan_flags, error, i, nchans; 3481 3482 /* Channels */ 3483 lhw = ic->ic_softc; 3484 hw = LHW_TO_HW(lhw); 3485 3486 /* NL80211_BAND_2GHZ */ 3487 nchans = 0; 3488 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3489 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3490 if (nchans > 0) { 3491 memset(bands, 0, sizeof(bands)); 3492 chan_flags = 0; 3493 setbit(bands, IEEE80211_MODE_11B); 3494 /* XXX-BZ unclear how to check for 11g. */ 3495 setbit(bands, IEEE80211_MODE_11G); 3496 #ifdef __notyet__ 3497 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3498 setbit(bands, IEEE80211_MODE_11NG); 3499 chan_flags |= NET80211_CBW_FLAG_HT40; 3500 } 3501 #endif 3502 3503 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3504 for (i = 0; i < nchans && *n < maxchan; i++) { 3505 uint32_t nflags = 0; 3506 int cflags = chan_flags; 3507 3508 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3509 ic_printf(ic, "%s: Skipping disabled chan " 3510 "[%u/%u/%#x]\n", __func__, 3511 channels[i].hw_value, 3512 channels[i].center_freq, channels[i].flags); 3513 continue; 3514 } 3515 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3516 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3517 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3518 nflags |= IEEE80211_CHAN_DFS; 3519 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3520 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3521 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3522 cflags &= ~NET80211_CBW_FLAG_VHT80; 3523 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3524 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3525 cflags &= ~NET80211_CBW_FLAG_HT40; 3526 3527 error = ieee80211_add_channel_cbw(c, maxchan, n, 3528 channels[i].hw_value, channels[i].center_freq, 3529 channels[i].max_power, 3530 nflags, bands, cflags); 3531 /* net80211::ENOBUFS: *n >= maxchans */ 3532 if (error != 0 && error != ENOBUFS) 3533 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3534 "returned error %d\n", 3535 __func__, channels[i].hw_value, 3536 channels[i].center_freq, channels[i].flags, 3537 nflags, chan_flags, cflags, error); 3538 if (error != 0) 3539 break; 3540 } 3541 } 3542 3543 /* NL80211_BAND_5GHZ */ 3544 nchans = 0; 3545 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3546 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3547 if (nchans > 0) { 3548 memset(bands, 0, sizeof(bands)); 3549 chan_flags = 0; 3550 setbit(bands, IEEE80211_MODE_11A); 3551 #ifdef __not_yet__ 3552 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3553 setbit(bands, IEEE80211_MODE_11NA); 3554 chan_flags |= NET80211_CBW_FLAG_HT40; 3555 } 3556 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3557 3558 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3559 ic->ic_vht_cap.vht_cap_info = 3560 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3561 3562 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3563 chan_flags |= NET80211_CBW_FLAG_VHT80; 3564 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3565 ic->ic_vht_cap.vht_cap_info)) 3566 chan_flags |= NET80211_CBW_FLAG_VHT160; 3567 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3568 ic->ic_vht_cap.vht_cap_info)) 3569 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3570 } 3571 #endif 3572 3573 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3574 for (i = 0; i < nchans && *n < maxchan; i++) { 3575 uint32_t nflags = 0; 3576 int cflags = chan_flags; 3577 3578 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3579 ic_printf(ic, "%s: Skipping disabled chan " 3580 "[%u/%u/%#x]\n", __func__, 3581 channels[i].hw_value, 3582 channels[i].center_freq, channels[i].flags); 3583 continue; 3584 } 3585 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3586 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3587 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3588 nflags |= IEEE80211_CHAN_DFS; 3589 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3590 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3591 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3592 cflags &= ~NET80211_CBW_FLAG_VHT80; 3593 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3594 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3595 cflags &= ~NET80211_CBW_FLAG_HT40; 3596 3597 error = ieee80211_add_channel_cbw(c, maxchan, n, 3598 channels[i].hw_value, channels[i].center_freq, 3599 channels[i].max_power, 3600 nflags, bands, cflags); 3601 /* net80211::ENOBUFS: *n >= maxchans */ 3602 if (error != 0 && error != ENOBUFS) 3603 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3604 "returned error %d\n", 3605 __func__, channels[i].hw_value, 3606 channels[i].center_freq, channels[i].flags, 3607 nflags, chan_flags, cflags, error); 3608 if (error != 0) 3609 break; 3610 } 3611 } 3612 } 3613 3614 static void * 3615 lkpi_ieee80211_ifalloc(void) 3616 { 3617 struct ieee80211com *ic; 3618 3619 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3620 if (ic == NULL) 3621 return (NULL); 3622 3623 /* Setting these happens later when we have device information. */ 3624 ic->ic_softc = NULL; 3625 ic->ic_name = "linuxkpi"; 3626 3627 return (ic); 3628 } 3629 3630 struct ieee80211_hw * 3631 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3632 { 3633 struct ieee80211_hw *hw; 3634 struct lkpi_hw *lhw; 3635 struct wiphy *wiphy; 3636 int ac; 3637 3638 /* Get us and the driver data also allocated. */ 3639 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3640 if (wiphy == NULL) 3641 return (NULL); 3642 3643 lhw = wiphy_priv(wiphy); 3644 lhw->ops = ops; 3645 3646 LKPI_80211_LHW_LOCK_INIT(lhw); 3647 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 3648 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3649 TAILQ_INIT(&lhw->lvif_head); 3650 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3651 lhw->txq_generation[ac] = 1; 3652 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 3653 } 3654 3655 /* 3656 * XXX-BZ TODO make sure there is a "_null" function to all ops 3657 * not initialized. 3658 */ 3659 hw = LHW_TO_HW(lhw); 3660 hw->wiphy = wiphy; 3661 hw->conf.flags |= IEEE80211_CONF_IDLE; 3662 hw->priv = (void *)(lhw + 1); 3663 3664 /* BSD Specific. */ 3665 lhw->ic = lkpi_ieee80211_ifalloc(); 3666 if (lhw->ic == NULL) { 3667 ieee80211_free_hw(hw); 3668 return (NULL); 3669 } 3670 3671 IMPROVE(); 3672 3673 return (hw); 3674 } 3675 3676 void 3677 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3678 { 3679 struct lkpi_hw *lhw; 3680 3681 lhw = HW_TO_LHW(hw); 3682 free(lhw->ic, M_LKPI80211); 3683 lhw->ic = NULL; 3684 3685 /* Cleanup more of lhw here or in wiphy_free()? */ 3686 sx_destroy(&lhw->lvif_sx); 3687 LKPI_80211_LHW_LOCK_DESTROY(lhw); 3688 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 3689 IMPROVE(); 3690 } 3691 3692 void 3693 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3694 { 3695 struct lkpi_hw *lhw; 3696 struct ieee80211com *ic; 3697 3698 lhw = HW_TO_LHW(hw); 3699 ic = lhw->ic; 3700 3701 /* Now set a proper name before ieee80211_ifattach(). */ 3702 ic->ic_softc = lhw; 3703 ic->ic_name = name; 3704 3705 /* XXX-BZ do we also need to set wiphy name? */ 3706 } 3707 3708 struct ieee80211_hw * 3709 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3710 { 3711 struct lkpi_hw *lhw; 3712 3713 lhw = wiphy_priv(wiphy); 3714 return (LHW_TO_HW(lhw)); 3715 } 3716 3717 static void 3718 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3719 { 3720 struct ieee80211com *ic; 3721 3722 ic = lhw->ic; 3723 ieee80211_radiotap_attach(ic, 3724 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3725 LKPI_RTAP_TX_FLAGS_PRESENT, 3726 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3727 LKPI_RTAP_RX_FLAGS_PRESENT); 3728 } 3729 3730 int 3731 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3732 { 3733 struct ieee80211com *ic; 3734 struct lkpi_hw *lhw; 3735 int band, i; 3736 3737 lhw = HW_TO_LHW(hw); 3738 ic = lhw->ic; 3739 3740 /* We do it this late as wiphy->dev should be set for the name. */ 3741 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3742 if (lhw->workq == NULL) 3743 return (-EAGAIN); 3744 3745 /* XXX-BZ figure this out how they count his... */ 3746 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3747 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3748 hw->wiphy->perm_addr); 3749 } else if (hw->wiphy->n_addresses > 0) { 3750 /* We take the first one. */ 3751 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3752 hw->wiphy->addresses[0].addr); 3753 } else { 3754 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3755 } 3756 3757 #ifdef __not_yet__ 3758 /* See comment in lkpi_80211_txq_tx_one(). */ 3759 ic->ic_headroom = hw->extra_tx_headroom; 3760 #endif 3761 3762 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3763 ic->ic_opmode = IEEE80211_M_STA; 3764 3765 /* Set device capabilities. */ 3766 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3767 ic->ic_caps = 3768 IEEE80211_C_STA | 3769 IEEE80211_C_MONITOR | 3770 IEEE80211_C_WPA | /* WPA/RSN */ 3771 #ifdef LKPI_80211_WME 3772 IEEE80211_C_WME | 3773 #endif 3774 #if 0 3775 IEEE80211_C_PMGT | 3776 #endif 3777 IEEE80211_C_SHSLOT | /* short slot time supported */ 3778 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3779 ; 3780 #if 0 3781 /* Scanning is a different kind of beast to re-work. */ 3782 ic->ic_caps |= IEEE80211_C_BGSCAN; 3783 #endif 3784 if (lhw->ops->hw_scan) { 3785 /* 3786 * Advertise full-offload scanning. 3787 * 3788 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3789 * we essentially disable hw_scan for all drivers not setting 3790 * the flag. 3791 */ 3792 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3793 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 3794 } 3795 3796 #ifdef __notyet__ 3797 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3798 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3799 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3800 | IEEE80211_HTCAP_MAXAMSDU_3839 3801 /* max A-MSDU length */ 3802 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3803 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3804 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3805 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3806 #endif 3807 3808 /* 3809 * The wiphy variables report bitmasks of avail antennas. 3810 * (*get_antenna) get the current bitmask sets which can be 3811 * altered by (*set_antenna) for some drivers. 3812 * XXX-BZ will the count alone do us much good long-term in net80211? 3813 */ 3814 if (hw->wiphy->available_antennas_rx || 3815 hw->wiphy->available_antennas_tx) { 3816 uint32_t rxs, txs; 3817 3818 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 3819 ic->ic_rxstream = bitcount32(rxs); 3820 ic->ic_txstream = bitcount32(txs); 3821 } 3822 } 3823 3824 ic->ic_cryptocaps = 0; 3825 #ifdef LKPI_80211_HW_CRYPTO 3826 if (hw->wiphy->n_cipher_suites > 0) { 3827 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3828 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3829 hw->wiphy->cipher_suites[i]); 3830 } 3831 #endif 3832 3833 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3834 ic->ic_channels); 3835 3836 ieee80211_ifattach(ic); 3837 3838 ic->ic_update_mcast = lkpi_ic_update_mcast; 3839 ic->ic_update_promisc = lkpi_ic_update_promisc; 3840 ic->ic_update_chw = lkpi_ic_update_chw; 3841 ic->ic_parent = lkpi_ic_parent; 3842 ic->ic_scan_start = lkpi_ic_scan_start; 3843 ic->ic_scan_end = lkpi_ic_scan_end; 3844 ic->ic_set_channel = lkpi_ic_set_channel; 3845 ic->ic_transmit = lkpi_ic_transmit; 3846 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3847 ic->ic_vap_create = lkpi_ic_vap_create; 3848 ic->ic_vap_delete = lkpi_ic_vap_delete; 3849 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3850 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3851 3852 lhw->ic_scan_curchan = ic->ic_scan_curchan; 3853 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 3854 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 3855 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 3856 3857 lhw->ic_node_alloc = ic->ic_node_alloc; 3858 ic->ic_node_alloc = lkpi_ic_node_alloc; 3859 lhw->ic_node_init = ic->ic_node_init; 3860 ic->ic_node_init = lkpi_ic_node_init; 3861 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3862 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3863 lhw->ic_node_free = ic->ic_node_free; 3864 ic->ic_node_free = lkpi_ic_node_free; 3865 3866 lkpi_radiotap_attach(lhw); 3867 3868 /* 3869 * Assign the first possible channel for now; seems Realtek drivers 3870 * expect one. 3871 * Also remember the amount of bands we support and the most rates 3872 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3873 */ 3874 lhw->supbands = lhw->max_rates = 0; 3875 for (band = 0; band < NUM_NL80211_BANDS; band++) { 3876 struct ieee80211_supported_band *supband; 3877 struct linuxkpi_ieee80211_channel *channels; 3878 3879 supband = hw->wiphy->bands[band]; 3880 if (supband == NULL || supband->n_channels == 0) 3881 continue; 3882 3883 lhw->supbands++; 3884 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3885 3886 /* If we have a channel, we need to keep counting supbands. */ 3887 if (hw->conf.chandef.chan != NULL) 3888 continue; 3889 3890 channels = supband->channels; 3891 for (i = 0; i < supband->n_channels; i++) { 3892 3893 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3894 continue; 3895 3896 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3897 NL80211_CHAN_NO_HT); 3898 break; 3899 } 3900 } 3901 3902 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3903 3904 /* Make sure we do not support more than net80211 is willing to take. */ 3905 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3906 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3907 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3908 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3909 } 3910 3911 /* 3912 * The maximum supported bitrates on any band + size for 3913 * DSSS Parameter Set give our per-band IE size. 3914 * XXX-BZ FIXME add HT VHT ... later 3915 * SSID is the responsibility of the driver and goes on the side. 3916 * The user specified bits coming from the vap go into the 3917 * "common ies" fields. 3918 */ 3919 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3920 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3921 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3922 3923 if (hw->wiphy->features & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) { 3924 /* 3925 * net80211 does not seem to support the DSSS Parameter Set but 3926 * some of the drivers insert it so calculate the extra fixed 3927 * space in. 3928 */ 3929 lhw->scan_ie_len += 2 + 1; 3930 } 3931 3932 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3933 if (hw->wiphy->max_scan_ie_len > 0) { 3934 if (lhw->scan_ie_len > hw->wiphy->max_scan_ie_len) 3935 goto err; 3936 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3937 } 3938 3939 if (bootverbose) 3940 ieee80211_announce(ic); 3941 3942 return (0); 3943 err: 3944 IMPROVE("TODO FIXME CLEANUP"); 3945 return (-EAGAIN); 3946 } 3947 3948 void 3949 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3950 { 3951 struct lkpi_hw *lhw; 3952 struct ieee80211com *ic; 3953 3954 lhw = HW_TO_LHW(hw); 3955 ic = lhw->ic; 3956 ieee80211_ifdetach(ic); 3957 } 3958 3959 void 3960 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3961 enum ieee80211_iface_iter flags, 3962 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3963 void *arg) 3964 { 3965 struct lkpi_hw *lhw; 3966 struct lkpi_vif *lvif; 3967 struct ieee80211_vif *vif; 3968 bool active, atomic, nin_drv; 3969 3970 lhw = HW_TO_LHW(hw); 3971 3972 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3973 IEEE80211_IFACE_ITER_RESUME_ALL| 3974 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3975 IEEE80211_IFACE_ITER_ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3976 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3977 __func__, flags); 3978 } 3979 3980 active = (flags & IEEE80211_IFACE_ITER_ACTIVE) != 0; 3981 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3982 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3983 3984 if (atomic) 3985 LKPI_80211_LHW_LVIF_LOCK(lhw); 3986 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3987 struct ieee80211vap *vap; 3988 3989 vif = LVIF_TO_VIF(lvif); 3990 3991 /* 3992 * If we want "active" interfaces, we need to distinguish on 3993 * whether the driver knows about them or not to be able to 3994 * handle the "resume" case correctly. Skip the ones the 3995 * driver does not know about. 3996 */ 3997 if (active && !lvif->added_to_drv && 3998 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3999 continue; 4000 4001 /* 4002 * If we shall skip interfaces not added to the driver do so 4003 * if we haven't yet. 4004 */ 4005 if (nin_drv && !lvif->added_to_drv) 4006 continue; 4007 4008 /* 4009 * Run the iterator function if we are either not asking 4010 * asking for active only or if the VAP is "running". 4011 */ 4012 /* XXX-BZ probably should have state in the lvif as well. */ 4013 vap = LVIF_TO_VAP(lvif); 4014 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 4015 iterfunc(arg, vif->addr, vif); 4016 } 4017 if (atomic) 4018 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4019 } 4020 4021 void 4022 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 4023 struct ieee80211_vif *vif, 4024 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 4025 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 4026 void *arg) 4027 { 4028 4029 UNIMPLEMENTED; 4030 } 4031 4032 void 4033 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 4034 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 4035 void *), 4036 void *arg) 4037 { 4038 struct lkpi_hw *lhw; 4039 struct lkpi_vif *lvif; 4040 struct ieee80211_vif *vif; 4041 struct lkpi_chanctx *lchanctx; 4042 4043 KASSERT(hw != NULL && iterfunc != NULL, 4044 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4045 4046 lhw = HW_TO_LHW(hw); 4047 4048 IMPROVE("lchanctx should be its own list somewhere"); 4049 4050 LKPI_80211_LHW_LVIF_LOCK(lhw); 4051 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4052 4053 vif = LVIF_TO_VIF(lvif); 4054 if (vif->chanctx_conf == NULL) 4055 continue; 4056 4057 lchanctx = CHANCTX_CONF_TO_LCHANCTX(vif->chanctx_conf); 4058 if (!lchanctx->added_to_drv) 4059 continue; 4060 4061 iterfunc(hw, &lchanctx->conf, arg); 4062 } 4063 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4064 } 4065 4066 void 4067 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 4068 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 4069 { 4070 struct lkpi_hw *lhw; 4071 struct lkpi_vif *lvif; 4072 struct lkpi_sta *lsta; 4073 struct ieee80211_sta *sta; 4074 4075 KASSERT(hw != NULL && iterfunc != NULL, 4076 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 4077 4078 lhw = HW_TO_LHW(hw); 4079 4080 LKPI_80211_LHW_LVIF_LOCK(lhw); 4081 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4082 4083 LKPI_80211_LVIF_LOCK(lvif); 4084 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4085 if (!lsta->added_to_drv) 4086 continue; 4087 sta = LSTA_TO_STA(lsta); 4088 iterfunc(arg, sta); 4089 } 4090 LKPI_80211_LVIF_UNLOCK(lvif); 4091 } 4092 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4093 } 4094 4095 struct linuxkpi_ieee80211_regdomain * 4096 lkpi_get_linuxkpi_ieee80211_regdomain(size_t n) 4097 { 4098 struct linuxkpi_ieee80211_regdomain *regd; 4099 4100 regd = kzalloc(sizeof(*regd) + n * sizeof(struct ieee80211_reg_rule), 4101 GFP_KERNEL); 4102 return (regd); 4103 } 4104 4105 int 4106 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 4107 struct linuxkpi_ieee80211_regdomain *regd) 4108 { 4109 struct lkpi_hw *lhw; 4110 struct ieee80211com *ic; 4111 struct ieee80211_regdomain *rd; 4112 4113 lhw = wiphy_priv(wiphy); 4114 ic = lhw->ic; 4115 4116 rd = &ic->ic_regdomain; 4117 if (rd->isocc[0] == '\0') { 4118 rd->isocc[0] = regd->alpha2[0]; 4119 rd->isocc[1] = regd->alpha2[1]; 4120 } 4121 4122 TODO(); 4123 /* XXX-BZ finish the rest. */ 4124 4125 return (0); 4126 } 4127 4128 void 4129 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 4130 struct cfg80211_scan_info *info) 4131 { 4132 struct lkpi_hw *lhw; 4133 struct ieee80211com *ic; 4134 struct ieee80211_scan_state *ss; 4135 4136 lhw = wiphy_priv(hw->wiphy); 4137 ic = lhw->ic; 4138 ss = ic->ic_scan; 4139 4140 ieee80211_scan_done(ss->ss_vap); 4141 4142 LKPI_80211_LHW_SCAN_LOCK(lhw); 4143 free(lhw->hw_req, M_LKPI80211); 4144 lhw->hw_req = NULL; 4145 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 4146 wakeup(lhw); 4147 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 4148 4149 return; 4150 } 4151 4152 /* For %list see comment towards the end of the function. */ 4153 void 4154 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 4155 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 4156 struct list_head *list __unused) 4157 { 4158 struct epoch_tracker et; 4159 struct lkpi_hw *lhw; 4160 struct ieee80211com *ic; 4161 struct mbuf *m; 4162 struct skb_shared_info *shinfo; 4163 struct ieee80211_rx_status *rx_status; 4164 struct ieee80211_rx_stats rx_stats; 4165 struct ieee80211_node *ni; 4166 struct ieee80211vap *vap; 4167 struct ieee80211_hdr *hdr; 4168 struct lkpi_sta *lsta; 4169 int i, offset, ok; 4170 int8_t rssi; 4171 bool is_beacon; 4172 4173 if (skb->len < 2) { 4174 /* Need 80211 stats here. */ 4175 IMPROVE(); 4176 goto err; 4177 } 4178 4179 /* 4180 * For now do the data copy; we can later improve things. Might even 4181 * have an mbuf backing the skb data then? 4182 */ 4183 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 4184 if (m == NULL) 4185 goto err; 4186 m_copyback(m, 0, skb->tail - skb->data, skb->data); 4187 4188 shinfo = skb_shinfo(skb); 4189 offset = m->m_len; 4190 for (i = 0; i < shinfo->nr_frags; i++) { 4191 m_copyback(m, offset, shinfo->frags[i].size, 4192 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 4193 shinfo->frags[i].offset); 4194 offset += shinfo->frags[i].size; 4195 } 4196 4197 rx_status = IEEE80211_SKB_RXCB(skb); 4198 4199 hdr = (void *)skb->data; 4200 is_beacon = ieee80211_is_beacon(hdr->frame_control); 4201 4202 #ifdef LINUXKPI_DEBUG_80211 4203 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 4204 goto no_trace_beacons; 4205 4206 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4207 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 4208 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 4209 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4210 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4211 shinfo, shinfo->nr_frags, 4212 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4213 4214 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4215 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4216 4217 /* Implement a dump_rxcb() !!! */ 4218 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4219 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4220 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4221 __func__, 4222 (uintmax_t)rx_status->boottime_ns, 4223 (uintmax_t)rx_status->mactime, 4224 rx_status->device_timestamp, 4225 rx_status->flag, 4226 rx_status->freq, 4227 rx_status->bw, 4228 rx_status->encoding, 4229 rx_status->ampdu_reference, 4230 rx_status->band, 4231 rx_status->chains, 4232 rx_status->chain_signal[0], 4233 rx_status->chain_signal[1], 4234 rx_status->chain_signal[2], 4235 rx_status->chain_signal[3], 4236 rx_status->signal, 4237 rx_status->enc_flags, 4238 rx_status->he_dcm, 4239 rx_status->he_gi, 4240 rx_status->he_ru, 4241 rx_status->zero_length_psdu_type, 4242 rx_status->nss, 4243 rx_status->rate_idx); 4244 no_trace_beacons: 4245 #endif 4246 4247 memset(&rx_stats, 0, sizeof(rx_stats)); 4248 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 4249 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 4250 rx_stats.c_nf = -96; 4251 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 4252 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 4253 rssi = rx_status->signal; 4254 else 4255 rssi = rx_stats.c_nf; 4256 /* 4257 * net80211 signal strength data are in .5 dBm units relative to 4258 * the current noise floor (see comment in ieee80211_node.h). 4259 */ 4260 rssi -= rx_stats.c_nf; 4261 rx_stats.c_rssi = rssi * 2; 4262 rx_stats.r_flags |= IEEE80211_R_BAND; 4263 rx_stats.c_band = 4264 lkpi_nl80211_band_to_net80211_band(rx_status->band); 4265 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 4266 rx_stats.c_freq = rx_status->freq; 4267 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 4268 4269 /* XXX (*sta_statistics)() to get to some of that? */ 4270 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 4271 4272 lhw = HW_TO_LHW(hw); 4273 ic = lhw->ic; 4274 4275 ok = ieee80211_add_rx_params(m, &rx_stats); 4276 if (ok == 0) { 4277 m_freem(m); 4278 counter_u64_add(ic->ic_ierrors, 1); 4279 goto err; 4280 } 4281 4282 if (sta != NULL) { 4283 lsta = STA_TO_LSTA(sta); 4284 ni = ieee80211_ref_node(lsta->ni); 4285 } else { 4286 struct ieee80211_frame_min *wh; 4287 4288 wh = mtod(m, struct ieee80211_frame_min *); 4289 ni = ieee80211_find_rxnode(ic, wh); 4290 if (ni != NULL) 4291 lsta = ni->ni_drv_data; 4292 } 4293 4294 if (ni != NULL) 4295 vap = ni->ni_vap; 4296 else 4297 /* 4298 * XXX-BZ can we improve this by looking at the frame hdr 4299 * or other meta-data passed up? 4300 */ 4301 vap = TAILQ_FIRST(&ic->ic_vaps); 4302 4303 #ifdef LINUXKPI_DEBUG_80211 4304 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4305 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 4306 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 4307 ni, vap, is_beacon ? " beacon" : ""); 4308 #endif 4309 4310 if (ni != NULL && vap != NULL && is_beacon && 4311 rx_status->device_timestamp > 0 && 4312 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 4313 struct lkpi_vif *lvif; 4314 struct ieee80211_vif *vif; 4315 struct ieee80211_frame *wh; 4316 4317 wh = mtod(m, struct ieee80211_frame *); 4318 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 4319 goto skip_device_ts; 4320 4321 lvif = VAP_TO_LVIF(vap); 4322 vif = LVIF_TO_VIF(lvif); 4323 4324 IMPROVE("TIMING_BEACON_ONLY?"); 4325 /* mac80211 specific (not net80211) so keep it here. */ 4326 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 4327 /* 4328 * net80211 should take care of the other information (sync_tsf, 4329 * sync_dtim_count) as otherwise we need to parse the beacon. 4330 */ 4331 } 4332 skip_device_ts: 4333 4334 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 4335 ieee80211_radiotap_active_vap(vap)) { 4336 struct lkpi_radiotap_rx_hdr *rtap; 4337 4338 rtap = &lhw->rtap_rx; 4339 rtap->wr_tsft = rx_status->device_timestamp; 4340 rtap->wr_flags = 0; 4341 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 4342 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 4343 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 4344 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 4345 #if 0 /* .. or it does not given we strip it below. */ 4346 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4347 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 4348 #endif 4349 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 4350 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 4351 rtap->wr_rate = 0; 4352 IMPROVE(); 4353 /* XXX TODO status->encoding / rate_index / bw */ 4354 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4355 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4356 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4357 rtap->wr_dbm_antsignal = rssi; 4358 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4359 } 4360 4361 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4362 m_adj(m, -IEEE80211_CRC_LEN); 4363 4364 #if 0 4365 if (list != NULL) { 4366 /* 4367 * Normally this would be queued up and delivered by 4368 * netif_receive_skb_list(), napi_gro_receive(), or the like. 4369 * See mt76::mac80211.c as only current possible consumer. 4370 */ 4371 IMPROVE("we simply pass the packet to net80211 to deal with."); 4372 } 4373 #endif 4374 4375 NET_EPOCH_ENTER(et); 4376 if (ni != NULL) { 4377 ok = ieee80211_input_mimo(ni, m); 4378 ieee80211_free_node(ni); 4379 if (ok < 0) 4380 m_freem(m); 4381 } else { 4382 ok = ieee80211_input_mimo_all(ic, m); 4383 /* mbuf got consumed. */ 4384 } 4385 NET_EPOCH_EXIT(et); 4386 4387 #ifdef LINUXKPI_DEBUG_80211 4388 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4389 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4390 #endif 4391 4392 IMPROVE(); 4393 4394 err: 4395 /* The skb is ours so we can free it :-) */ 4396 kfree_skb(skb); 4397 } 4398 4399 uint8_t 4400 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4401 { 4402 const struct ieee80211_frame *wh; 4403 uint8_t tid; 4404 4405 /* Linux seems to assume this is a QOS-Data-Frame */ 4406 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4407 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4408 hdr->frame_control)); 4409 4410 wh = (const struct ieee80211_frame *)hdr; 4411 tid = ieee80211_gettid(wh); 4412 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4413 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4414 4415 return (tid); 4416 } 4417 4418 struct wiphy * 4419 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4420 { 4421 struct lkpi_wiphy *lwiphy; 4422 4423 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4424 if (lwiphy == NULL) 4425 return (NULL); 4426 lwiphy->ops = ops; 4427 4428 /* XXX TODO */ 4429 return (LWIPHY_TO_WIPHY(lwiphy)); 4430 } 4431 4432 void 4433 linuxkpi_wiphy_free(struct wiphy *wiphy) 4434 { 4435 struct lkpi_wiphy *lwiphy; 4436 4437 if (wiphy == NULL) 4438 return; 4439 4440 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4441 kfree(lwiphy); 4442 } 4443 4444 uint32_t 4445 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4446 enum nl80211_band band) 4447 { 4448 4449 switch (band) { 4450 case NL80211_BAND_2GHZ: 4451 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4452 break; 4453 case NL80211_BAND_5GHZ: 4454 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4455 break; 4456 default: 4457 /* XXX abort, retry, error, panic? */ 4458 break; 4459 } 4460 4461 return (0); 4462 } 4463 4464 uint32_t 4465 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4466 { 4467 4468 return (ieee80211_mhz2ieee(freq, 0)); 4469 } 4470 4471 static struct lkpi_sta * 4472 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4473 { 4474 struct lkpi_sta *lsta, *temp; 4475 4476 LKPI_80211_LVIF_LOCK(lvif); 4477 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4478 if (lsta->ni == ni) { 4479 LKPI_80211_LVIF_UNLOCK(lvif); 4480 return (lsta); 4481 } 4482 } 4483 LKPI_80211_LVIF_UNLOCK(lvif); 4484 4485 return (NULL); 4486 } 4487 4488 struct ieee80211_sta * 4489 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4490 { 4491 struct lkpi_vif *lvif; 4492 struct lkpi_sta *lsta, *temp; 4493 struct ieee80211_sta *sta; 4494 4495 lvif = VIF_TO_LVIF(vif); 4496 4497 LKPI_80211_LVIF_LOCK(lvif); 4498 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4499 sta = LSTA_TO_STA(lsta); 4500 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4501 LKPI_80211_LVIF_UNLOCK(lvif); 4502 return (sta); 4503 } 4504 } 4505 LKPI_80211_LVIF_UNLOCK(lvif); 4506 return (NULL); 4507 } 4508 4509 struct ieee80211_sta * 4510 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4511 const uint8_t *addr, const uint8_t *ourvifaddr) 4512 { 4513 struct lkpi_hw *lhw; 4514 struct lkpi_vif *lvif; 4515 struct lkpi_sta *lsta; 4516 struct ieee80211_vif *vif; 4517 struct ieee80211_sta *sta; 4518 4519 lhw = wiphy_priv(hw->wiphy); 4520 sta = NULL; 4521 4522 LKPI_80211_LHW_LVIF_LOCK(lhw); 4523 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4524 4525 /* XXX-BZ check our address from the vif. */ 4526 4527 vif = LVIF_TO_VIF(lvif); 4528 if (ourvifaddr != NULL && 4529 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4530 continue; 4531 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4532 if (sta != NULL) 4533 break; 4534 } 4535 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4536 4537 if (sta != NULL) { 4538 lsta = STA_TO_LSTA(sta); 4539 if (!lsta->added_to_drv) 4540 return (NULL); 4541 } 4542 4543 return (sta); 4544 } 4545 4546 struct sk_buff * 4547 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4548 struct ieee80211_txq *txq) 4549 { 4550 struct lkpi_txq *ltxq; 4551 struct lkpi_vif *lvif; 4552 struct sk_buff *skb; 4553 4554 skb = NULL; 4555 ltxq = TXQ_TO_LTXQ(txq); 4556 ltxq->seen_dequeue = true; 4557 4558 if (ltxq->stopped) 4559 goto stopped; 4560 4561 lvif = VIF_TO_LVIF(ltxq->txq.vif); 4562 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 4563 ltxq->stopped = true; 4564 goto stopped; 4565 } 4566 4567 skb = skb_dequeue(<xq->skbq); 4568 4569 stopped: 4570 return (skb); 4571 } 4572 4573 void 4574 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4575 unsigned long *frame_cnt, unsigned long *byte_cnt) 4576 { 4577 struct lkpi_txq *ltxq; 4578 struct sk_buff *skb; 4579 unsigned long fc, bc; 4580 4581 ltxq = TXQ_TO_LTXQ(txq); 4582 4583 fc = bc = 0; 4584 skb_queue_walk(<xq->skbq, skb) { 4585 fc++; 4586 bc += skb->len; 4587 } 4588 if (frame_cnt) 4589 *frame_cnt = fc; 4590 if (byte_cnt) 4591 *byte_cnt = bc; 4592 4593 /* Validate that this is doing the correct thing. */ 4594 /* Should we keep track on en/dequeue? */ 4595 IMPROVE(); 4596 } 4597 4598 /* 4599 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4600 * The latter tries to derive the success status from the info flags 4601 * passed back from the driver. rawx_mit() saves the ni on the m and the 4602 * m on the skb for us to be able to give feedback to net80211. 4603 */ 4604 static void 4605 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4606 int status) 4607 { 4608 struct ieee80211_node *ni; 4609 struct mbuf *m; 4610 4611 m = skb->m; 4612 skb->m = NULL; 4613 4614 if (m != NULL) { 4615 ni = m->m_pkthdr.PH_loc.ptr; 4616 /* Status: 0 is ok, != 0 is error. */ 4617 ieee80211_tx_complete(ni, m, status); 4618 /* ni & mbuf were consumed. */ 4619 } 4620 } 4621 4622 void 4623 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4624 int status) 4625 { 4626 4627 _lkpi_ieee80211_free_txskb(hw, skb, status); 4628 kfree_skb(skb); 4629 } 4630 4631 void 4632 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 4633 struct ieee80211_tx_status *txstat) 4634 { 4635 struct sk_buff *skb; 4636 struct ieee80211_tx_info *info; 4637 struct ieee80211_ratectl_tx_status txs; 4638 struct ieee80211_node *ni; 4639 int status; 4640 4641 skb = txstat->skb; 4642 if (skb->m != NULL) { 4643 struct mbuf *m; 4644 4645 m = skb->m; 4646 ni = m->m_pkthdr.PH_loc.ptr; 4647 memset(&txs, 0, sizeof(txs)); 4648 } else { 4649 ni = NULL; 4650 } 4651 4652 info = txstat->info; 4653 if (info->flags & IEEE80211_TX_STAT_ACK) { 4654 status = 0; /* No error. */ 4655 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4656 } else { 4657 status = 1; 4658 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4659 } 4660 4661 if (ni != NULL) { 4662 int ridx __unused; 4663 #ifdef LINUXKPI_DEBUG_80211 4664 int old_rate; 4665 4666 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4667 #endif 4668 txs.pktlen = skb->len; 4669 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4670 if (info->status.rates[0].count > 1) { 4671 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4672 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4673 } 4674 #if 0 /* Unused in net80211 currently. */ 4675 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 4676 txs.final_rate = info->status.rates[0].idx; 4677 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4678 #endif 4679 if (info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID) { 4680 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4681 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4682 } 4683 4684 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4685 ieee80211_ratectl_tx_complete(ni, &txs); 4686 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4687 4688 #ifdef LINUXKPI_DEBUG_80211 4689 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4690 printf("TX-RATE: %s: old %d new %d ridx %d, " 4691 "long_retries %d\n", __func__, 4692 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4693 ridx, txs.long_retries); 4694 } 4695 #endif 4696 } 4697 4698 #ifdef LINUXKPI_DEBUG_80211 4699 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4700 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4701 "band %u hw_queue %u tx_time_est %d : " 4702 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4703 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4704 "tx_time %u flags %#x " 4705 "status_driver_data [ %p %p ]\n", 4706 __func__, hw, skb, status, info->flags, 4707 info->band, info->hw_queue, info->tx_time_est, 4708 info->status.rates[0].idx, info->status.rates[0].count, 4709 info->status.rates[0].flags, 4710 info->status.rates[1].idx, info->status.rates[1].count, 4711 info->status.rates[1].flags, 4712 info->status.rates[2].idx, info->status.rates[2].count, 4713 info->status.rates[2].flags, 4714 info->status.rates[3].idx, info->status.rates[3].count, 4715 info->status.rates[3].flags, 4716 info->status.ack_signal, info->status.ampdu_ack_len, 4717 info->status.ampdu_len, info->status.antenna, 4718 info->status.tx_time, info->status.flags, 4719 info->status.status_driver_data[0], 4720 info->status.status_driver_data[1]); 4721 #endif 4722 4723 if (txstat->free_list) { 4724 _lkpi_ieee80211_free_txskb(hw, skb, status); 4725 list_add_tail(&skb->list, txstat->free_list); 4726 } else { 4727 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4728 } 4729 } 4730 4731 void 4732 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4733 { 4734 struct ieee80211_tx_status status; 4735 4736 memset(&status, 0, sizeof(status)); 4737 status.info = IEEE80211_SKB_CB(skb); 4738 status.skb = skb; 4739 /* sta, n_rates, rates, free_list? */ 4740 4741 ieee80211_tx_status_ext(hw, &status); 4742 } 4743 4744 /* 4745 * This is an internal bandaid for the moment for the way we glue 4746 * skbs and mbufs together for TX. Once we have skbs backed by 4747 * mbufs this should go away. 4748 * This is a public function but kept on the private KPI (lkpi_) 4749 * and is not exposed by a header file. 4750 */ 4751 static void 4752 lkpi_ieee80211_free_skb_mbuf(void *p) 4753 { 4754 struct ieee80211_node *ni; 4755 struct mbuf *m; 4756 4757 if (p == NULL) 4758 return; 4759 4760 m = (struct mbuf *)p; 4761 M_ASSERTPKTHDR(m); 4762 4763 ni = m->m_pkthdr.PH_loc.ptr; 4764 m->m_pkthdr.PH_loc.ptr = NULL; 4765 if (ni != NULL) 4766 ieee80211_free_node(ni); 4767 m_freem(m); 4768 } 4769 4770 void 4771 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4772 struct delayed_work *w, int delay) 4773 { 4774 struct lkpi_hw *lhw; 4775 4776 /* Need to make sure hw is in a stable (non-suspended) state. */ 4777 IMPROVE(); 4778 4779 lhw = HW_TO_LHW(hw); 4780 queue_delayed_work(lhw->workq, w, delay); 4781 } 4782 4783 void 4784 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4785 struct work_struct *w) 4786 { 4787 struct lkpi_hw *lhw; 4788 4789 /* Need to make sure hw is in a stable (non-suspended) state. */ 4790 IMPROVE(); 4791 4792 lhw = HW_TO_LHW(hw); 4793 queue_work(lhw->workq, w); 4794 } 4795 4796 struct sk_buff * 4797 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4798 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4799 { 4800 struct sk_buff *skb; 4801 struct ieee80211_frame *wh; 4802 uint8_t *p; 4803 size_t len; 4804 4805 len = sizeof(*wh); 4806 len += 2 + ssid_len; 4807 4808 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4809 if (skb == NULL) 4810 return (NULL); 4811 4812 skb_reserve(skb, hw->extra_tx_headroom); 4813 4814 wh = skb_put_zero(skb, sizeof(*wh)); 4815 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4816 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4817 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4818 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4819 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4820 4821 p = skb_put(skb, 2 + ssid_len); 4822 *p++ = IEEE80211_ELEMID_SSID; 4823 *p++ = ssid_len; 4824 if (ssid_len > 0) 4825 memcpy(p, ssid, ssid_len); 4826 4827 return (skb); 4828 } 4829 4830 struct sk_buff * 4831 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4832 struct ieee80211_vif *vif) 4833 { 4834 struct lkpi_vif *lvif; 4835 struct ieee80211vap *vap; 4836 struct sk_buff *skb; 4837 struct ieee80211_frame_pspoll *psp; 4838 uint16_t v; 4839 4840 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4841 if (skb == NULL) 4842 return (NULL); 4843 4844 skb_reserve(skb, hw->extra_tx_headroom); 4845 4846 lvif = VIF_TO_LVIF(vif); 4847 vap = LVIF_TO_VAP(lvif); 4848 4849 psp = skb_put_zero(skb, sizeof(*psp)); 4850 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4851 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4852 v = htole16(vif->cfg.aid | 1<<15 | 1<<16); 4853 memcpy(&psp->i_aid, &v, sizeof(v)); 4854 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4855 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4856 4857 return (skb); 4858 } 4859 4860 struct sk_buff * 4861 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4862 struct ieee80211_vif *vif, int linkid, bool qos) 4863 { 4864 struct lkpi_vif *lvif; 4865 struct ieee80211vap *vap; 4866 struct sk_buff *skb; 4867 struct ieee80211_frame *nullf; 4868 4869 IMPROVE("linkid"); 4870 4871 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4872 if (skb == NULL) 4873 return (NULL); 4874 4875 skb_reserve(skb, hw->extra_tx_headroom); 4876 4877 lvif = VIF_TO_LVIF(vif); 4878 vap = LVIF_TO_VAP(lvif); 4879 4880 nullf = skb_put_zero(skb, sizeof(*nullf)); 4881 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4882 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4883 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4884 4885 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4886 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4887 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4888 4889 return (skb); 4890 } 4891 4892 struct wireless_dev * 4893 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4894 { 4895 struct lkpi_vif *lvif; 4896 4897 lvif = VIF_TO_LVIF(vif); 4898 return (&lvif->wdev); 4899 } 4900 4901 void 4902 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4903 { 4904 struct lkpi_vif *lvif; 4905 struct ieee80211vap *vap; 4906 enum ieee80211_state nstate; 4907 int arg; 4908 4909 lvif = VIF_TO_LVIF(vif); 4910 vap = LVIF_TO_VAP(lvif); 4911 4912 /* 4913 * Go to init; otherwise we need to elaborately check state and 4914 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4915 * Let the statemachine handle all neccessary changes. 4916 */ 4917 nstate = IEEE80211_S_INIT; 4918 arg = 0; /* Not a valid reason. */ 4919 4920 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4921 vif, vap, ieee80211_state_name[vap->iv_state]); 4922 ieee80211_new_state(vap, nstate, arg); 4923 } 4924 4925 void 4926 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4927 { 4928 struct lkpi_vif *lvif; 4929 struct ieee80211vap *vap; 4930 4931 lvif = VIF_TO_LVIF(vif); 4932 vap = LVIF_TO_VAP(lvif); 4933 4934 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4935 vif, vap, ieee80211_state_name[vap->iv_state]); 4936 ieee80211_beacon_miss(vap->iv_ic); 4937 } 4938 4939 /* -------------------------------------------------------------------------- */ 4940 4941 void 4942 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 4943 { 4944 struct lkpi_hw *lhw; 4945 struct lkpi_vif *lvif; 4946 struct ieee80211_vif *vif; 4947 int ac_count, ac; 4948 4949 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 4950 __func__, qnum, hw->queues, hw)); 4951 4952 lhw = wiphy_priv(hw->wiphy); 4953 4954 /* See lkpi_ic_vap_create(). */ 4955 if (hw->queues >= IEEE80211_NUM_ACS) 4956 ac_count = IEEE80211_NUM_ACS; 4957 else 4958 ac_count = 1; 4959 4960 LKPI_80211_LHW_LVIF_LOCK(lhw); 4961 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4962 4963 vif = LVIF_TO_VIF(lvif); 4964 for (ac = 0; ac < ac_count; ac++) { 4965 IMPROVE_TXQ("LOCKING"); 4966 if (qnum == vif->hw_queue[ac]) { 4967 #ifdef LINUXKPI_DEBUG_80211 4968 /* 4969 * For now log this to better understand 4970 * how this is supposed to work. 4971 */ 4972 if (lvif->hw_queue_stopped[ac] && 4973 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 4974 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4975 "lvif %p vif %p ac %d qnum %d already " 4976 "stopped\n", __func__, __LINE__, 4977 lhw, hw, lvif, vif, ac, qnum); 4978 #endif 4979 lvif->hw_queue_stopped[ac] = true; 4980 } 4981 } 4982 } 4983 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4984 } 4985 4986 void 4987 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 4988 { 4989 int i; 4990 4991 IMPROVE_TXQ("Locking; do we need further info?"); 4992 for (i = 0; i < hw->queues; i++) 4993 linuxkpi_ieee80211_stop_queue(hw, i); 4994 } 4995 4996 4997 static void 4998 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 4999 { 5000 struct lkpi_hw *lhw; 5001 struct lkpi_vif *lvif; 5002 struct lkpi_sta *lsta; 5003 int ac_count, ac, tid; 5004 5005 /* See lkpi_ic_vap_create(). */ 5006 if (hw->queues >= IEEE80211_NUM_ACS) 5007 ac_count = IEEE80211_NUM_ACS; 5008 else 5009 ac_count = 1; 5010 5011 lhw = wiphy_priv(hw->wiphy); 5012 5013 IMPROVE_TXQ("Locking"); 5014 LKPI_80211_LHW_LVIF_LOCK(lhw); 5015 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 5016 struct ieee80211_vif *vif; 5017 5018 vif = LVIF_TO_VIF(lvif); 5019 for (ac = 0; ac < ac_count; ac++) { 5020 5021 if (hwq == vif->hw_queue[ac]) { 5022 5023 /* XXX-BZ what about software scan? */ 5024 5025 #ifdef LINUXKPI_DEBUG_80211 5026 /* 5027 * For now log this to better understand 5028 * how this is supposed to work. 5029 */ 5030 if (!lvif->hw_queue_stopped[ac] && 5031 (linuxkpi_debug_80211 & D80211_IMPROVE_TXQ) != 0) 5032 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 5033 "lvif %p vif %p ac %d hw_q not stopped\n", 5034 __func__, __LINE__, 5035 lhw, hw, lvif, vif, ac); 5036 #endif 5037 lvif->hw_queue_stopped[ac] = false; 5038 5039 LKPI_80211_LVIF_LOCK(lvif); 5040 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 5041 struct ieee80211_sta *sta; 5042 5043 sta = LSTA_TO_STA(lsta); 5044 for (tid = 0; tid < nitems(sta->txq); tid++) { 5045 struct lkpi_txq *ltxq; 5046 5047 if (sta->txq[tid] == NULL) 5048 continue; 5049 5050 if (sta->txq[tid]->ac != ac) 5051 continue; 5052 5053 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 5054 if (!ltxq->stopped) 5055 continue; 5056 5057 ltxq->stopped = false; 5058 5059 /* XXX-BZ see when this explodes with all the locking. taskq? */ 5060 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 5061 } 5062 } 5063 LKPI_80211_LVIF_UNLOCK(lvif); 5064 } 5065 } 5066 } 5067 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 5068 } 5069 5070 void 5071 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 5072 { 5073 int i; 5074 5075 IMPROVE_TXQ("Is this all/enough here?"); 5076 for (i = 0; i < hw->queues; i++) 5077 lkpi_ieee80211_wake_queues(hw, i); 5078 } 5079 5080 void 5081 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 5082 { 5083 5084 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 5085 __func__, qnum, hw->queues, hw)); 5086 5087 lkpi_ieee80211_wake_queues(hw, qnum); 5088 } 5089 5090 /* This is just hardware queues. */ 5091 void 5092 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 5093 { 5094 struct lkpi_hw *lhw; 5095 5096 lhw = HW_TO_LHW(hw); 5097 5098 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 5099 IMPROVE_TXQ("LOCKING"); 5100 if (++lhw->txq_generation[ac] == 0) 5101 lhw->txq_generation[ac]++; 5102 } 5103 5104 struct ieee80211_txq * 5105 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 5106 { 5107 struct lkpi_hw *lhw; 5108 struct ieee80211_txq *txq; 5109 struct lkpi_txq *ltxq; 5110 5111 lhw = HW_TO_LHW(hw); 5112 txq = NULL; 5113 5114 IMPROVE_TXQ("LOCKING"); 5115 5116 /* Check that we are scheduled. */ 5117 if (lhw->txq_generation[ac] == 0) 5118 goto out; 5119 5120 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 5121 if (ltxq == NULL) 5122 goto out; 5123 if (ltxq->txq_generation == lhw->txq_generation[ac]) 5124 goto out; 5125 5126 ltxq->txq_generation = lhw->txq_generation[ac]; 5127 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 5128 txq = <xq->txq; 5129 TAILQ_ELEM_INIT(ltxq, txq_entry); 5130 5131 out: 5132 return (txq); 5133 } 5134 5135 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 5136 struct ieee80211_txq *txq, bool withoutpkts) 5137 { 5138 struct lkpi_hw *lhw; 5139 struct lkpi_txq *ltxq; 5140 5141 ltxq = TXQ_TO_LTXQ(txq); 5142 5143 IMPROVE_TXQ("LOCKING"); 5144 5145 /* Only schedule if work to do or asked to anyway. */ 5146 if (!withoutpkts && skb_queue_empty(<xq->skbq)) 5147 goto out; 5148 5149 /* Make sure we do not double-schedule. */ 5150 if (ltxq->txq_entry.tqe_next != NULL) 5151 goto out; 5152 5153 lhw = HW_TO_LHW(hw); 5154 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 5155 out: 5156 return; 5157 } 5158 5159 /* -------------------------------------------------------------------------- */ 5160 5161 struct lkpi_cfg80211_bss { 5162 u_int refcnt; 5163 struct cfg80211_bss bss; 5164 }; 5165 5166 struct lkpi_cfg80211_get_bss_iter_lookup { 5167 struct wiphy *wiphy; 5168 struct linuxkpi_ieee80211_channel *chan; 5169 const uint8_t *bssid; 5170 const uint8_t *ssid; 5171 size_t ssid_len; 5172 enum ieee80211_bss_type bss_type; 5173 enum ieee80211_privacy privacy; 5174 5175 /* 5176 * Something to store a copy of the result as the net80211 scan cache 5177 * is not refoucnted so a scan entry might go away any time. 5178 */ 5179 bool match; 5180 struct cfg80211_bss *bss; 5181 }; 5182 5183 static void 5184 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 5185 { 5186 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 5187 size_t ielen; 5188 5189 lookup = arg; 5190 5191 /* Do not try to find another match. */ 5192 if (lookup->match) 5193 return; 5194 5195 /* Nothing to store result. */ 5196 if (lookup->bss == NULL) 5197 return; 5198 5199 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 5200 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 5201 /* We have no idea what to compare to as the drivers only request ANY */ 5202 return; 5203 } 5204 5205 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 5206 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 5207 /* We have no idea what to compare to as the drivers only request ANY */ 5208 return; 5209 } 5210 5211 if (lookup->chan != NULL) { 5212 struct linuxkpi_ieee80211_channel *chan; 5213 5214 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 5215 se->se_chan->ic_freq); 5216 if (chan == NULL || chan != lookup->chan) 5217 return; 5218 } 5219 5220 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 5221 return; 5222 5223 if (lookup->ssid) { 5224 if (lookup->ssid_len != se->se_ssid[1] || 5225 se->se_ssid[1] == 0) 5226 return; 5227 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 5228 return; 5229 } 5230 5231 ielen = se->se_ies.len; 5232 5233 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 5234 M_LKPI80211, M_NOWAIT | M_ZERO); 5235 if (lookup->bss->ies == NULL) 5236 return; 5237 5238 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 5239 lookup->bss->ies->len = ielen; 5240 if (ielen) 5241 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 5242 5243 lookup->match = true; 5244 } 5245 5246 struct cfg80211_bss * 5247 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 5248 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 5249 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 5250 { 5251 struct lkpi_cfg80211_bss *lbss; 5252 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 5253 struct lkpi_hw *lhw; 5254 struct ieee80211vap *vap; 5255 5256 lhw = wiphy_priv(wiphy); 5257 5258 /* Let's hope we can alloc. */ 5259 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 5260 if (lbss == NULL) { 5261 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 5262 return (NULL); 5263 } 5264 5265 lookup.wiphy = wiphy; 5266 lookup.chan = chan; 5267 lookup.bssid = bssid; 5268 lookup.ssid = ssid; 5269 lookup.ssid_len = ssid_len; 5270 lookup.bss_type = bss_type; 5271 lookup.privacy = privacy; 5272 lookup.match = false; 5273 lookup.bss = &lbss->bss; 5274 5275 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 5276 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 5277 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 5278 if (!lookup.match) { 5279 free(lbss, M_LKPI80211); 5280 return (NULL); 5281 } 5282 5283 refcount_init(&lbss->refcnt, 1); 5284 return (&lbss->bss); 5285 } 5286 5287 void 5288 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 5289 { 5290 struct lkpi_cfg80211_bss *lbss; 5291 5292 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 5293 5294 /* Free everything again on refcount ... */ 5295 if (refcount_release(&lbss->refcnt)) { 5296 free(lbss->bss.ies, M_LKPI80211); 5297 free(lbss, M_LKPI80211); 5298 } 5299 } 5300 5301 void 5302 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 5303 { 5304 struct lkpi_hw *lhw; 5305 struct ieee80211com *ic; 5306 struct ieee80211vap *vap; 5307 5308 lhw = wiphy_priv(wiphy); 5309 ic = lhw->ic; 5310 5311 /* 5312 * If we haven't called ieee80211_ifattach() yet 5313 * or there is no VAP, there are no scans to flush. 5314 */ 5315 if (ic == NULL || 5316 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 5317 return; 5318 5319 /* Should only happen on the current one? Not seen it late enough. */ 5320 IEEE80211_LOCK(ic); 5321 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 5322 ieee80211_scan_flush(vap); 5323 IEEE80211_UNLOCK(ic); 5324 } 5325 5326 /* -------------------------------------------------------------------------- */ 5327 5328 MODULE_VERSION(linuxkpi_wlan, 1); 5329 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 5330 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 5331