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 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/types.h> 47 #include <sys/kernel.h> 48 #include <sys/errno.h> 49 #include <sys/malloc.h> 50 #include <sys/module.h> 51 #include <sys/mutex.h> 52 #include <sys/socket.h> 53 #include <sys/sysctl.h> 54 #include <sys/queue.h> 55 #include <sys/taskqueue.h> 56 #include <sys/libkern.h> 57 58 #include <net/if.h> 59 #include <net/if_var.h> 60 #include <net/if_media.h> 61 #include <net/ethernet.h> 62 63 #include <net80211/ieee80211_var.h> 64 #include <net80211/ieee80211_proto.h> 65 #include <net80211/ieee80211_ratectl.h> 66 #include <net80211/ieee80211_radiotap.h> 67 68 #define LINUXKPI_NET80211 69 #include <net/mac80211.h> 70 71 #include <linux/workqueue.h> 72 #include "linux_80211.h" 73 74 #define LKPI_80211_WME 75 /* #define LKPI_80211_HW_CRYPTO */ 76 77 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 78 79 /* XXX-BZ really want this and others in queue.h */ 80 #define TAILQ_ELEM_INIT(elm, field) do { \ 81 (elm)->field.tqe_next = NULL; \ 82 (elm)->field.tqe_prev = NULL; \ 83 } while (0) 84 85 /* -------------------------------------------------------------------------- */ 86 87 /* Keep public for as long as header files are using it too. */ 88 int linuxkpi_debug_80211; 89 90 #ifdef LINUXKPI_DEBUG_80211 91 SYSCTL_DECL(_compat_linuxkpi); 92 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 93 "LinuxKPI 802.11 compatibility layer"); 94 95 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 96 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 97 98 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 99 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 100 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 101 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 102 #else 103 #define UNIMPLEMENTED do { } while (0) 104 #define TRACEOK() do { } while (0) 105 #endif 106 107 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 108 #ifndef PREP_TX_INFO_DURATION 109 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 110 #endif 111 112 /* c.f. ieee80211_ioctl.c */ 113 static const uint8_t zerobssid[IEEE80211_ADDR_LEN]; 114 115 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 116 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 117 118 /* IEEE 802.11-05/0257r1 */ 119 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 120 121 const uint8_t tid_to_mac80211_ac[] = { 122 IEEE80211_AC_BE, 123 IEEE80211_AC_BK, 124 IEEE80211_AC_BK, 125 IEEE80211_AC_BE, 126 IEEE80211_AC_VI, 127 IEEE80211_AC_VI, 128 IEEE80211_AC_VO, 129 IEEE80211_AC_VO, 130 #if 0 131 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 132 #endif 133 }; 134 135 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 136 /* 137 * XXX TODO need a "glue layer" to link cfg80211 ops to 138 * mac80211 and to the driver or net80211. 139 * Can we pass some on 1:1? Need to compare the (*f)(). 140 */ 141 }; 142 143 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 144 struct ieee80211_node *); 145 static void lkpi_80211_txq_task(void *, int); 146 static void lkpi_ieee80211_free_skb_mbuf(void *); 147 #ifdef LKPI_80211_WME 148 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 149 #endif 150 151 static void 152 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 153 const char *_f, int _l) 154 { 155 156 #ifdef LINUXKPI_DEBUG_80211 157 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 158 return; 159 if (lsta == NULL) 160 return; 161 162 printf("%s:%d lsta %p ni %p sta %p\n", 163 _f, _l, lsta, ni, &lsta->sta); 164 if (ni != NULL) 165 ieee80211_dump_node(NULL, ni); 166 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 167 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 168 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 169 #endif 170 } 171 172 static void 173 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 174 { 175 struct ieee80211_node *ni; 176 177 IMPROVE("XXX-BZ remove tqe_prev check once ni-sta-state-sync is fixed"); 178 179 ni = lsta->ni; 180 181 LKPI_80211_LVIF_LOCK(lvif); 182 if (lsta->lsta_entry.tqe_prev != NULL) 183 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 184 LKPI_80211_LVIF_UNLOCK(lvif); 185 186 lsta->ni = NULL; 187 ni->ni_drv_data = NULL; 188 if (ni != NULL) 189 ieee80211_free_node(ni); 190 191 IMPROVE("more from lkpi_ic_node_free() should happen here."); 192 193 free(lsta, M_LKPI80211); 194 } 195 196 static struct lkpi_sta * 197 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 198 struct ieee80211_hw *hw, struct ieee80211_node *ni) 199 { 200 struct lkpi_sta *lsta; 201 struct lkpi_vif *lvif; 202 struct ieee80211_vif *vif; 203 struct ieee80211_sta *sta; 204 int band, i, tid; 205 206 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 207 M_NOWAIT | M_ZERO); 208 if (lsta == NULL) 209 return (NULL); 210 211 lsta->added_to_drv = false; 212 lsta->state = IEEE80211_STA_NOTEXIST; 213 #if 0 214 /* 215 * This needs to be done in node_init() as ieee80211_alloc_node() 216 * will initialise the refcount after us. 217 */ 218 lsta->ni = ieee80211_ref_node(ni); 219 #endif 220 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 221 ni->ni_drv_data = lsta; 222 223 lvif = VAP_TO_LVIF(vap); 224 vif = LVIF_TO_VIF(lvif); 225 sta = LSTA_TO_STA(lsta); 226 227 IEEE80211_ADDR_COPY(sta->addr, mac); 228 229 /* TXQ */ 230 for (tid = 0; tid < nitems(sta->txq); tid++) { 231 struct lkpi_txq *ltxq; 232 233 /* We are not limiting ourselves to hw.queues here. */ 234 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 235 M_LKPI80211, M_NOWAIT | M_ZERO); 236 if (ltxq == NULL) 237 goto cleanup; 238 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 239 if (tid == IEEE80211_NUM_TIDS) { 240 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 241 free(ltxq, M_LKPI80211); 242 continue; 243 } 244 IMPROVE("AP/if we support non-STA here too"); 245 ltxq->txq.ac = IEEE80211_AC_VO; 246 } else { 247 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 248 } 249 ltxq->seen_dequeue = false; 250 ltxq->stopped = false; 251 ltxq->txq.vif = vif; 252 ltxq->txq.tid = tid; 253 ltxq->txq.sta = sta; 254 TAILQ_ELEM_INIT(ltxq, txq_entry); 255 skb_queue_head_init(<xq->skbq); 256 sta->txq[tid] = <xq->txq; 257 } 258 259 /* Deflink information. */ 260 for (band = 0; band < NUM_NL80211_BANDS; band++) { 261 struct ieee80211_supported_band *supband; 262 263 supband = hw->wiphy->bands[band]; 264 if (supband == NULL) 265 continue; 266 267 for (i = 0; i < supband->n_bitrates; i++) { 268 269 IMPROVE("Further supband->bitrates[i]* checks?"); 270 /* or should we get them from the ni? */ 271 sta->deflink.supp_rates[band] |= BIT(i); 272 } 273 } 274 IMPROVE("ht, vht, he, ... bandwidth, smps_mode, .."); 275 /* bandwidth = IEEE80211_STA_RX_... */ 276 277 /* Deferred TX path. */ 278 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 279 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 280 mbufq_init(&lsta->txq, IFQ_MAXLEN); 281 282 return (lsta); 283 284 cleanup: 285 for (; tid >= 0; tid--) 286 free(sta->txq[tid], M_LKPI80211); 287 free(lsta, M_LKPI80211); 288 return (NULL); 289 } 290 291 static enum nl80211_band 292 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 293 { 294 295 if (IEEE80211_IS_CHAN_2GHZ(c)) 296 return (NL80211_BAND_2GHZ); 297 else if (IEEE80211_IS_CHAN_5GHZ(c)) 298 return (NL80211_BAND_5GHZ); 299 #ifdef __notyet__ 300 else if () 301 return (NL80211_BAND_6GHZ); 302 else if () 303 return (NL80211_BAND_60GHZ); 304 else if (IEEE80211_IS_CHAN_GSM(c)) 305 return (NL80211_BAND_XXX); 306 #endif 307 else 308 panic("%s: unsupported band. c %p flags %#x\n", 309 __func__, c, c->ic_flags); 310 } 311 312 static uint32_t 313 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 314 { 315 316 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 317 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 318 switch (band) { 319 case NL80211_BAND_2GHZ: 320 return (IEEE80211_CHAN_2GHZ); 321 break; 322 case NL80211_BAND_5GHZ: 323 return (IEEE80211_CHAN_5GHZ); 324 break; 325 case NL80211_BAND_60GHZ: 326 break; 327 case NL80211_BAND_6GHZ: 328 break; 329 default: 330 panic("%s: unsupported band %u\n", __func__, band); 331 break; 332 } 333 334 IMPROVE(); 335 return (0x00); 336 } 337 338 #if 0 339 static enum ieee80211_ac_numbers 340 lkpi_ac_net_to_l80211(int ac) 341 { 342 343 switch (ac) { 344 case WME_AC_VO: 345 return (IEEE80211_AC_VO); 346 case WME_AC_VI: 347 return (IEEE80211_AC_VI); 348 case WME_AC_BE: 349 return (IEEE80211_AC_BE); 350 case WME_AC_BK: 351 return (IEEE80211_AC_BK); 352 default: 353 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 354 return (IEEE80211_AC_BE); 355 } 356 } 357 #endif 358 359 static enum nl80211_iftype 360 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 361 { 362 363 switch (opmode) { 364 case IEEE80211_M_IBSS: 365 return (NL80211_IFTYPE_ADHOC); 366 break; 367 case IEEE80211_M_STA: 368 return (NL80211_IFTYPE_STATION); 369 break; 370 case IEEE80211_M_WDS: 371 return (NL80211_IFTYPE_WDS); 372 break; 373 case IEEE80211_M_HOSTAP: 374 return (NL80211_IFTYPE_AP); 375 break; 376 case IEEE80211_M_MONITOR: 377 return (NL80211_IFTYPE_MONITOR); 378 break; 379 case IEEE80211_M_MBSS: 380 return (NL80211_IFTYPE_MESH_POINT); 381 break; 382 case IEEE80211_M_AHDEMO: 383 /* FALLTHROUGH */ 384 default: 385 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 386 /* FALLTHROUGH */ 387 } 388 return (NL80211_IFTYPE_UNSPECIFIED); 389 } 390 391 #ifdef LKPI_80211_HW_CRYPTO 392 static uint32_t 393 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 394 { 395 396 switch (wlan_cipher_suite) { 397 case WLAN_CIPHER_SUITE_WEP40: 398 return (IEEE80211_CRYPTO_WEP); 399 case WLAN_CIPHER_SUITE_TKIP: 400 return (IEEE80211_CRYPTO_TKIP); 401 case WLAN_CIPHER_SUITE_CCMP: 402 return (IEEE80211_CIPHER_AES_CCM); 403 case WLAN_CIPHER_SUITE_WEP104: 404 return (IEEE80211_CRYPTO_WEP); 405 case WLAN_CIPHER_SUITE_AES_CMAC: 406 case WLAN_CIPHER_SUITE_GCMP: 407 case WLAN_CIPHER_SUITE_GCMP_256: 408 case WLAN_CIPHER_SUITE_CCMP_256: 409 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 410 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 411 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 412 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 413 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 414 break; 415 default: 416 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 417 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 418 } 419 420 return (0); 421 } 422 423 static uint32_t 424 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 425 { 426 427 switch (cipher) { 428 case IEEE80211_CIPHER_TKIP: 429 return (WLAN_CIPHER_SUITE_TKIP); 430 case IEEE80211_CIPHER_AES_CCM: 431 return (WLAN_CIPHER_SUITE_CCMP); 432 case IEEE80211_CIPHER_WEP: 433 if (keylen < 8) 434 return (WLAN_CIPHER_SUITE_WEP40); 435 else 436 return (WLAN_CIPHER_SUITE_WEP104); 437 break; 438 case IEEE80211_CIPHER_AES_OCB: 439 case IEEE80211_CIPHER_TKIPMIC: 440 case IEEE80211_CIPHER_CKIP: 441 case IEEE80211_CIPHER_NONE: 442 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 443 break; 444 default: 445 printf("%s: unknown cipher %#010x\n", __func__, cipher); 446 }; 447 return (0); 448 } 449 #endif 450 451 #ifdef __notyet__ 452 static enum ieee80211_sta_state 453 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 454 { 455 456 /* 457 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 458 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 459 */ 460 switch (state) { 461 case IEEE80211_S_INIT: 462 return (IEEE80211_STA_NOTEXIST); 463 case IEEE80211_S_SCAN: 464 return (IEEE80211_STA_NONE); 465 case IEEE80211_S_AUTH: 466 return (IEEE80211_STA_AUTH); 467 case IEEE80211_S_ASSOC: 468 return (IEEE80211_STA_ASSOC); 469 case IEEE80211_S_RUN: 470 return (IEEE80211_STA_AUTHORIZED); 471 case IEEE80211_S_CAC: 472 case IEEE80211_S_CSA: 473 case IEEE80211_S_SLEEP: 474 default: 475 UNIMPLEMENTED; 476 }; 477 478 return (IEEE80211_STA_NOTEXIST); 479 } 480 #endif 481 482 static struct linuxkpi_ieee80211_channel * 483 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 484 struct ieee80211_channel *c) 485 { 486 struct ieee80211_hw *hw; 487 struct linuxkpi_ieee80211_channel *channels; 488 enum nl80211_band band; 489 int i, nchans; 490 491 hw = LHW_TO_HW(lhw); 492 band = lkpi_net80211_chan_to_nl80211_band(c); 493 if (hw->wiphy->bands[band] == NULL) 494 return (NULL); 495 496 nchans = hw->wiphy->bands[band]->n_channels; 497 if (nchans <= 0) 498 return (NULL); 499 500 channels = hw->wiphy->bands[band]->channels; 501 for (i = 0; i < nchans; i++) { 502 if (channels[i].hw_value == c->ic_ieee) 503 return (&channels[i]); 504 } 505 506 return (NULL); 507 } 508 509 static struct linuxkpi_ieee80211_channel * 510 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 511 { 512 struct linuxkpi_ieee80211_channel *chan; 513 struct ieee80211_channel *c; 514 struct lkpi_hw *lhw; 515 516 chan = NULL; 517 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 518 c = ni->ni_chan; 519 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 520 c = ic->ic_bsschan; 521 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 522 c = ic->ic_curchan; 523 else 524 c = NULL; 525 526 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 527 lhw = ic->ic_softc; 528 chan = lkpi_find_lkpi80211_chan(lhw, c); 529 } 530 531 return (chan); 532 } 533 534 struct linuxkpi_ieee80211_channel * 535 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 536 { 537 enum nl80211_band band; 538 539 for (band = 0; band < NUM_NL80211_BANDS; band++) { 540 struct ieee80211_supported_band *supband; 541 struct linuxkpi_ieee80211_channel *channels; 542 int i; 543 544 supband = wiphy->bands[band]; 545 if (supband == NULL || supband->n_channels == 0) 546 continue; 547 548 channels = supband->channels; 549 for (i = 0; i < supband->n_channels; i++) { 550 if (channels[i].center_freq == freq) 551 return (&channels[i]); 552 } 553 } 554 555 return (NULL); 556 } 557 558 #ifdef LKPI_80211_HW_CRYPTO 559 static int 560 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 561 enum set_key_cmd cmd) 562 { 563 struct ieee80211com *ic; 564 struct lkpi_hw *lhw; 565 struct ieee80211_hw *hw; 566 struct lkpi_vif *lvif; 567 struct ieee80211_vif *vif; 568 struct ieee80211_sta *sta; 569 struct ieee80211_node *ni; 570 struct ieee80211_key_conf *kc; 571 int error; 572 573 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 574 575 ic = vap->iv_ic; 576 lhw = ic->ic_softc; 577 hw = LHW_TO_HW(lhw); 578 lvif = VAP_TO_LVIF(vap); 579 vif = LVIF_TO_VIF(lvif); 580 581 memset(&kc, 0, sizeof(kc)); 582 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 583 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 584 k->wk_cipher->ic_cipher, k->wk_keylen); 585 kc->keyidx = k->wk_keyix; 586 #if 0 587 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 588 #endif 589 atomic64_set(&kc->tx_pn, k->wk_keytsc); 590 kc->keylen = k->wk_keylen; 591 memcpy(kc->key, k->wk_key, k->wk_keylen); 592 593 switch (kc->cipher) { 594 case WLAN_CIPHER_SUITE_CCMP: 595 kc->iv_len = k->wk_cipher->ic_header; 596 kc->icv_len = k->wk_cipher->ic_trailer; 597 break; 598 case WLAN_CIPHER_SUITE_TKIP: 599 default: 600 IMPROVE(); 601 return (0); 602 }; 603 604 ni = vap->iv_bss; 605 sta = ieee80211_find_sta(vif, ni->ni_bssid); 606 if (sta != NULL) { 607 struct lkpi_sta *lsta; 608 609 lsta = STA_TO_LSTA(sta); 610 lsta->kc = kc; 611 } 612 613 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 614 if (error != 0) { 615 /* XXX-BZ leaking kc currently */ 616 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 617 return (0); 618 } else { 619 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 620 "flags %#10x\n", __func__, 621 kc->keyidx, kc->hw_key_idx, kc->flags); 622 return (1); 623 } 624 } 625 626 static int 627 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 628 { 629 630 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 631 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 632 } 633 static int 634 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 635 { 636 637 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 638 } 639 #endif 640 641 static u_int 642 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 643 { 644 struct netdev_hw_addr_list *mc_list; 645 struct netdev_hw_addr *addr; 646 647 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 648 __func__, arg, sdl, cnt)); 649 650 mc_list = arg; 651 /* If it is on the list already skip it. */ 652 netdev_hw_addr_list_for_each(addr, mc_list) { 653 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 654 return (0); 655 } 656 657 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 658 if (addr == NULL) 659 return (0); 660 661 INIT_LIST_HEAD(&addr->addr_list); 662 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 663 /* XXX this should be a netdev function? */ 664 list_add(&addr->addr_list, &mc_list->addr_list); 665 mc_list->count++; 666 667 #ifdef LINUXKPI_DEBUG_80211 668 if (linuxkpi_debug_80211 & D80211_TRACE) 669 printf("%s:%d: mc_list count %d: added %6D\n", 670 __func__, __LINE__, mc_list->count, addr->addr, ":"); 671 #endif 672 673 return (1); 674 } 675 676 static void 677 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 678 { 679 struct lkpi_hw *lhw; 680 struct ieee80211_hw *hw; 681 struct netdev_hw_addr_list mc_list; 682 struct list_head *le, *next; 683 struct netdev_hw_addr *addr; 684 struct ieee80211vap *vap; 685 u64 mc; 686 unsigned int changed_flags, total_flags; 687 688 lhw = ic->ic_softc; 689 690 if (lhw->ops->prepare_multicast == NULL || 691 lhw->ops->configure_filter == NULL) 692 return; 693 694 if (!lhw->update_mc && !force) 695 return; 696 697 changed_flags = total_flags = 0; 698 mc_list.count = 0; 699 INIT_LIST_HEAD(&mc_list.addr_list); 700 if (ic->ic_allmulti == 0) { 701 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 702 if_foreach_llmaddr(vap->iv_ifp, 703 lkpi_ic_update_mcast_copy, &mc_list); 704 } else { 705 changed_flags |= FIF_ALLMULTI; 706 } 707 708 hw = LHW_TO_HW(lhw); 709 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 710 /* 711 * XXX-BZ make sure to get this sorted what is a change, 712 * what gets all set; what was already set? 713 */ 714 total_flags = changed_flags; 715 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 716 717 #ifdef LINUXKPI_DEBUG_80211 718 if (linuxkpi_debug_80211 & D80211_TRACE) 719 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 720 __func__, changed_flags, mc_list.count, total_flags); 721 #endif 722 723 if (mc_list.count != 0) { 724 list_for_each_safe(le, next, &mc_list.addr_list) { 725 addr = list_entry(le, struct netdev_hw_addr, addr_list); 726 free(addr, M_LKPI80211); 727 mc_list.count--; 728 } 729 } 730 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 731 __func__, &mc_list, mc_list.count)); 732 } 733 734 static enum ieee80211_bss_changed 735 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 736 struct ieee80211vap *vap, const char *_f, int _l) 737 { 738 enum ieee80211_bss_changed bss_changed; 739 740 bss_changed = 0; 741 742 #ifdef LINUXKPI_DEBUG_80211 743 if (linuxkpi_debug_80211 & D80211_TRACE) 744 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 745 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 746 "sync_device_ts %u bss_changed %#08x\n", 747 __func__, __LINE__, _f, _l, 748 vif->bss_conf.assoc, vif->bss_conf.aid, 749 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 750 vif->bss_conf.sync_dtim_count, 751 (uintmax_t)vif->bss_conf.sync_tsf, 752 vif->bss_conf.sync_device_ts, 753 bss_changed); 754 #endif 755 756 if (vif->bss_conf.beacon_int != ni->ni_intval) { 757 vif->bss_conf.beacon_int = ni->ni_intval; 758 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 759 if (vif->bss_conf.beacon_int < 16) 760 vif->bss_conf.beacon_int = 16; 761 bss_changed |= BSS_CHANGED_BEACON_INT; 762 } 763 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 764 vap->iv_dtim_period > 0) { 765 vif->bss_conf.dtim_period = vap->iv_dtim_period; 766 bss_changed |= BSS_CHANGED_BEACON_INFO; 767 } 768 769 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 770 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 771 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 772 773 #ifdef LINUXKPI_DEBUG_80211 774 if (linuxkpi_debug_80211 & D80211_TRACE) 775 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 776 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 777 "sync_device_ts %u bss_changed %#08x\n", 778 __func__, __LINE__, _f, _l, 779 vif->bss_conf.assoc, vif->bss_conf.aid, 780 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 781 vif->bss_conf.sync_dtim_count, 782 (uintmax_t)vif->bss_conf.sync_tsf, 783 vif->bss_conf.sync_device_ts, 784 bss_changed); 785 #endif 786 787 return (bss_changed); 788 } 789 790 static void 791 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 792 { 793 struct ieee80211_hw *hw; 794 int error; 795 bool cancel; 796 797 LKPI_80211_LHW_SCAN_LOCK(lhw); 798 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 799 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 800 if (!cancel) 801 return; 802 803 hw = LHW_TO_HW(lhw); 804 805 IEEE80211_UNLOCK(lhw->ic); 806 LKPI_80211_LHW_LOCK(lhw); 807 /* Need to cancel the scan. */ 808 lkpi_80211_mo_cancel_hw_scan(hw, vif); 809 LKPI_80211_LHW_UNLOCK(lhw); 810 811 /* Need to make sure we see ieee80211_scan_completed. */ 812 LKPI_80211_LHW_SCAN_LOCK(lhw); 813 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 814 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 815 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 816 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 817 818 IEEE80211_LOCK(lhw->ic); 819 820 if (cancel) 821 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 822 __func__, error, lhw, vif); 823 } 824 825 static void 826 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 827 { 828 struct lkpi_hw *lhw; 829 int error; 830 bool old; 831 832 old = hw->conf.flags & IEEE80211_CONF_IDLE; 833 if (old == new) 834 return; 835 836 hw->conf.flags ^= IEEE80211_CONF_IDLE; 837 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 838 if (error != 0 && error != EOPNOTSUPP) { 839 lhw = HW_TO_LHW(hw); 840 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 841 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 842 } 843 } 844 845 static void 846 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 847 struct lkpi_hw *lhw) 848 { 849 sta->aid = 0; 850 if (vif->bss_conf.assoc) { 851 struct ieee80211_hw *hw; 852 enum ieee80211_bss_changed changed; 853 854 lhw->update_mc = true; 855 lkpi_update_mcast_filter(lhw->ic, true); 856 857 changed = 0; 858 vif->bss_conf.assoc = false; 859 vif->bss_conf.aid = 0; 860 changed |= BSS_CHANGED_ASSOC; 861 /* 862 * This will remove the sta from firmware for iwlwifi. 863 * So confusing that they use state and flags and ... ^%$%#%$^. 864 */ 865 IMPROVE(); 866 hw = LHW_TO_HW(lhw); 867 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 868 changed); 869 870 lkpi_hw_conf_idle(hw, true); 871 } 872 } 873 874 static void 875 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 876 bool dequeue_seen, bool no_emptyq) 877 { 878 struct lkpi_txq *ltxq; 879 int tid; 880 881 /* Wake up all queues to know they are allocated in the driver. */ 882 for (tid = 0; tid < nitems(sta->txq); tid++) { 883 884 if (tid == IEEE80211_NUM_TIDS) { 885 IMPROVE("station specific?"); 886 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 887 continue; 888 } else if (tid >= hw->queues) 889 continue; 890 891 if (sta->txq[tid] == NULL) 892 continue; 893 894 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 895 if (dequeue_seen && !ltxq->seen_dequeue) 896 continue; 897 898 if (no_emptyq && skb_queue_empty(<xq->skbq)) 899 continue; 900 901 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 902 } 903 } 904 905 /* -------------------------------------------------------------------------- */ 906 907 static int 908 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 909 { 910 911 return (0); 912 } 913 914 /* lkpi_iv_newstate() handles the stop scan case generally. */ 915 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 916 917 static int 918 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 919 { 920 struct linuxkpi_ieee80211_channel *chan; 921 struct ieee80211_chanctx_conf *conf; 922 struct lkpi_hw *lhw; 923 struct ieee80211_hw *hw; 924 struct lkpi_vif *lvif; 925 struct ieee80211_vif *vif; 926 struct ieee80211_node *ni; 927 struct lkpi_sta *lsta; 928 enum ieee80211_bss_changed bss_changed; 929 struct ieee80211_prep_tx_info prep_tx_info; 930 uint32_t changed; 931 int error; 932 933 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 934 if (chan == NULL) { 935 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 936 return (ESRCH); 937 } 938 939 lhw = vap->iv_ic->ic_softc; 940 hw = LHW_TO_HW(lhw); 941 lvif = VAP_TO_LVIF(vap); 942 vif = LVIF_TO_VIF(lvif); 943 944 ni = ieee80211_ref_node(vap->iv_bss); 945 946 IEEE80211_UNLOCK(vap->iv_ic); 947 LKPI_80211_LHW_LOCK(lhw); 948 949 /* Add chanctx (or if exists, change it). */ 950 if (vif->chanctx_conf != NULL) { 951 conf = vif->chanctx_conf; 952 IMPROVE("diff changes for changed, working on live copy, rcu"); 953 } else { 954 /* Keep separate alloc as in Linux this is rcu managed? */ 955 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 956 M_LKPI80211, M_WAITOK | M_ZERO); 957 } 958 959 conf->rx_chains_dynamic = 1; 960 conf->rx_chains_static = 1; 961 conf->radar_enabled = 962 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 963 conf->def.chan = chan; 964 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 965 conf->def.center_freq1 = chan->center_freq; 966 conf->def.center_freq2 = 0; 967 /* Responder ... */ 968 conf->min_def.chan = chan; 969 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 970 conf->min_def.center_freq1 = chan->center_freq; 971 conf->min_def.center_freq2 = 0; 972 IMPROVE("currently 20_NOHT only"); 973 974 error = 0; 975 if (vif->chanctx_conf != NULL) { 976 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 977 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 978 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 979 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 980 lkpi_80211_mo_change_chanctx(hw, conf, changed); 981 } else { 982 error = lkpi_80211_mo_add_chanctx(hw, conf); 983 if (error == 0 || error == EOPNOTSUPP) { 984 vif->bss_conf.chandef.chan = conf->def.chan; 985 vif->bss_conf.chandef.width = conf->def.width; 986 vif->bss_conf.chandef.center_freq1 = 987 conf->def.center_freq1; 988 vif->bss_conf.chandef.center_freq2 = 989 conf->def.center_freq2; 990 } else { 991 goto out; 992 } 993 /* Assign vif chanctx. */ 994 if (error == 0) 995 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 996 if (error == EOPNOTSUPP) 997 error = 0; 998 if (error != 0) { 999 lkpi_80211_mo_remove_chanctx(hw, conf); 1000 free(conf, M_LKPI80211); 1001 goto out; 1002 } 1003 } 1004 IMPROVE("update radiotap chan fields too"); 1005 1006 /* Set bss info (bss_info_changed). */ 1007 bss_changed = 0; 1008 vif->bss_conf.bssid = ni->ni_bssid; 1009 bss_changed |= BSS_CHANGED_BSSID; 1010 vif->bss_conf.txpower = ni->ni_txpower; 1011 bss_changed |= BSS_CHANGED_TXPOWER; 1012 vif->bss_conf.idle = false; 1013 bss_changed |= BSS_CHANGED_IDLE; 1014 1015 /* Should almost assert it is this. */ 1016 vif->bss_conf.assoc = false; 1017 vif->bss_conf.aid = 0; 1018 1019 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1020 1021 /* RATES */ 1022 IMPROVE("bss info: not all needs to come now and rates are missing"); 1023 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1024 1025 /* 1026 * This is a bandaid for now. If we went through (*iv_update_bss)() 1027 * and then removed the lsta we end up here without a lsta and have 1028 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1029 * would normally do. 1030 * XXX-BZ I do not like this but currently we have no good way of 1031 * intercepting the bss swap and state changes and packets going out 1032 * workflow so live with this. It is a compat layer after all. 1033 */ 1034 if (ni->ni_drv_data == NULL) { 1035 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1036 if (lsta == NULL) { 1037 error = ENOMEM; 1038 goto out; 1039 } 1040 lsta->ni = ieee80211_ref_node(ni); 1041 } else { 1042 lsta = ni->ni_drv_data; 1043 } 1044 1045 /* Insert the [l]sta into the list of known stations. */ 1046 LKPI_80211_LVIF_LOCK(lvif); 1047 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1048 LKPI_80211_LVIF_UNLOCK(lvif); 1049 1050 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1051 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1052 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1053 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1054 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1055 if (error != 0) { 1056 IMPROVE("do we need to undo the chan ctx?"); 1057 goto out; 1058 } 1059 #if 0 1060 lsta->added_to_drv = true; /* mo manages. */ 1061 #endif 1062 1063 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1064 1065 /* 1066 * Wakeup all queues now that sta is there so we have as much time to 1067 * possibly prepare the queue in the driver to be ready for the 1st 1068 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1069 * is no guarantee or way to check. 1070 * XXX-BZ and by now we know that this does not work on all drivers 1071 * for all queues. 1072 */ 1073 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1074 1075 /* Start mgd_prepare_tx. */ 1076 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1077 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1078 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1079 lsta->in_mgd = true; 1080 1081 /* 1082 * What is going to happen next: 1083 * - <twiddle> .. we should end up in "auth_to_assoc" 1084 * - event_callback 1085 * - update sta_state (NONE to AUTH) 1086 * - mgd_complete_tx 1087 * (ideally we'd do that on a callback for something else ...) 1088 */ 1089 1090 out: 1091 LKPI_80211_LHW_UNLOCK(lhw); 1092 IEEE80211_LOCK(vap->iv_ic); 1093 if (ni != NULL) 1094 ieee80211_free_node(ni); 1095 return (error); 1096 } 1097 1098 static int 1099 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1100 { 1101 struct lkpi_hw *lhw; 1102 struct ieee80211_hw *hw; 1103 struct lkpi_vif *lvif; 1104 struct ieee80211_vif *vif; 1105 struct ieee80211_node *ni; 1106 struct lkpi_sta *lsta; 1107 struct ieee80211_sta *sta; 1108 struct ieee80211_prep_tx_info prep_tx_info; 1109 int error; 1110 1111 lhw = vap->iv_ic->ic_softc; 1112 hw = LHW_TO_HW(lhw); 1113 lvif = VAP_TO_LVIF(vap); 1114 vif = LVIF_TO_VIF(lvif); 1115 1116 /* Keep ni around. */ 1117 ni = ieee80211_ref_node(vap->iv_bss); 1118 lsta = ni->ni_drv_data; 1119 sta = LSTA_TO_STA(lsta); 1120 1121 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1122 1123 IEEE80211_UNLOCK(vap->iv_ic); 1124 LKPI_80211_LHW_LOCK(lhw); 1125 1126 /* flush, drop. */ 1127 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1128 1129 /* Wake tx queues to get packet(s) out. */ 1130 lkpi_wake_tx_queues(hw, sta, true, true); 1131 1132 /* flush, no drop */ 1133 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1134 1135 /* End mgd_complete_tx. */ 1136 if (lsta->in_mgd) { 1137 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1138 prep_tx_info.success = false; 1139 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1140 lsta->in_mgd = false; 1141 } 1142 1143 /* sync_rx_queues */ 1144 lkpi_80211_mo_sync_rx_queues(hw); 1145 1146 /* sta_pre_rcu_remove */ 1147 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1148 1149 /* Take the station down. */ 1150 1151 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1152 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1153 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1154 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1155 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1156 if (error != 0) { 1157 IMPROVE("do we need to undo the chan ctx?"); 1158 goto out; 1159 } 1160 #if 0 1161 lsta->added_to_drv = false; /* mo manages. */ 1162 #endif 1163 1164 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1165 1166 lkpi_lsta_remove(lsta, lvif); 1167 1168 /* conf_tx */ 1169 1170 /* Take the chan ctx down. */ 1171 if (vif->chanctx_conf != NULL) { 1172 struct ieee80211_chanctx_conf *conf; 1173 1174 conf = vif->chanctx_conf; 1175 /* Remove vif context. */ 1176 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1177 /* NB: vif->chanctx_conf is NULL now. */ 1178 1179 /* Remove chan ctx. */ 1180 lkpi_80211_mo_remove_chanctx(hw, conf); 1181 free(conf, M_LKPI80211); 1182 } 1183 1184 out: 1185 LKPI_80211_LHW_UNLOCK(lhw); 1186 IEEE80211_LOCK(vap->iv_ic); 1187 if (ni != NULL) 1188 ieee80211_free_node(ni); 1189 return (error); 1190 } 1191 1192 static int 1193 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1194 { 1195 int error; 1196 1197 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1198 if (error == 0) 1199 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1200 return (error); 1201 } 1202 1203 static int 1204 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1205 { 1206 struct lkpi_hw *lhw; 1207 struct ieee80211_hw *hw; 1208 struct lkpi_vif *lvif; 1209 struct ieee80211_vif *vif; 1210 struct ieee80211_node *ni; 1211 struct lkpi_sta *lsta; 1212 struct ieee80211_prep_tx_info prep_tx_info; 1213 int error; 1214 1215 lhw = vap->iv_ic->ic_softc; 1216 hw = LHW_TO_HW(lhw); 1217 lvif = VAP_TO_LVIF(vap); 1218 vif = LVIF_TO_VIF(lvif); 1219 1220 IEEE80211_UNLOCK(vap->iv_ic); 1221 LKPI_80211_LHW_LOCK(lhw); 1222 ni = NULL; 1223 1224 /* Finish auth. */ 1225 IMPROVE("event callback"); 1226 1227 /* Update sta_state (NONE to AUTH). */ 1228 ni = ieee80211_ref_node(vap->iv_bss); 1229 lsta = ni->ni_drv_data; 1230 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1231 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1232 "NONE: %#x\n", __func__, lsta, lsta->state)); 1233 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1234 if (error != 0) 1235 goto out; 1236 1237 /* End mgd_complete_tx. */ 1238 if (lsta->in_mgd) { 1239 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1240 prep_tx_info.success = true; 1241 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1242 lsta->in_mgd = false; 1243 } 1244 1245 /* Now start assoc. */ 1246 1247 /* Start mgd_prepare_tx. */ 1248 if (!lsta->in_mgd) { 1249 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1250 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1251 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1252 lsta->in_mgd = true; 1253 } 1254 1255 /* Wake tx queue to get packet out. */ 1256 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1257 1258 /* 1259 * <twiddle> .. we end up in "assoc_to_run" 1260 * - update sta_state (AUTH to ASSOC) 1261 * - conf_tx [all] 1262 * - bss_info_changed (assoc, aid, ssid, ..) 1263 * - change_chanctx (if needed) 1264 * - event_callback 1265 * - mgd_complete_tx 1266 */ 1267 1268 out: 1269 LKPI_80211_LHW_UNLOCK(lhw); 1270 IEEE80211_LOCK(vap->iv_ic); 1271 if (ni != NULL) 1272 ieee80211_free_node(ni); 1273 return (error); 1274 } 1275 1276 /* auth_to_auth, assoc_to_assoc. */ 1277 static int 1278 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1279 { 1280 struct lkpi_hw *lhw; 1281 struct ieee80211_hw *hw; 1282 struct lkpi_vif *lvif; 1283 struct ieee80211_vif *vif; 1284 struct ieee80211_node *ni; 1285 struct lkpi_sta *lsta; 1286 struct ieee80211_prep_tx_info prep_tx_info; 1287 1288 lhw = vap->iv_ic->ic_softc; 1289 hw = LHW_TO_HW(lhw); 1290 lvif = VAP_TO_LVIF(vap); 1291 vif = LVIF_TO_VIF(lvif); 1292 1293 ni = ieee80211_ref_node(vap->iv_bss); 1294 1295 IEEE80211_UNLOCK(vap->iv_ic); 1296 LKPI_80211_LHW_LOCK(lhw); 1297 lsta = ni->ni_drv_data; 1298 1299 IMPROVE("event callback?"); 1300 1301 /* End mgd_complete_tx. */ 1302 if (lsta->in_mgd) { 1303 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1304 prep_tx_info.success = false; 1305 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1306 lsta->in_mgd = false; 1307 } 1308 1309 /* Now start assoc. */ 1310 1311 /* Start mgd_prepare_tx. */ 1312 if (!lsta->in_mgd) { 1313 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1314 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1315 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1316 lsta->in_mgd = true; 1317 } 1318 1319 LKPI_80211_LHW_UNLOCK(lhw); 1320 IEEE80211_LOCK(vap->iv_ic); 1321 if (ni != NULL) 1322 ieee80211_free_node(ni); 1323 1324 return (0); 1325 } 1326 1327 static int 1328 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1329 { 1330 struct lkpi_hw *lhw; 1331 struct ieee80211_hw *hw; 1332 struct lkpi_vif *lvif; 1333 struct ieee80211_vif *vif; 1334 struct ieee80211_node *ni; 1335 struct lkpi_sta *lsta; 1336 struct ieee80211_sta *sta; 1337 struct ieee80211_prep_tx_info prep_tx_info; 1338 enum ieee80211_bss_changed bss_changed; 1339 int error; 1340 1341 lhw = vap->iv_ic->ic_softc; 1342 hw = LHW_TO_HW(lhw); 1343 lvif = VAP_TO_LVIF(vap); 1344 vif = LVIF_TO_VIF(lvif); 1345 1346 /* Keep ni around. */ 1347 ni = ieee80211_ref_node(vap->iv_bss); 1348 lsta = ni->ni_drv_data; 1349 sta = LSTA_TO_STA(lsta); 1350 1351 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1352 1353 IEEE80211_UNLOCK(vap->iv_ic); 1354 LKPI_80211_LHW_LOCK(lhw); 1355 1356 /* flush, drop. */ 1357 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1358 1359 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1360 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1361 !lsta->in_mgd) { 1362 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1363 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1364 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1365 lsta->in_mgd = true; 1366 } 1367 1368 LKPI_80211_LHW_UNLOCK(lhw); 1369 IEEE80211_LOCK(vap->iv_ic); 1370 1371 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1372 error = lvif->iv_newstate(vap, nstate, arg); 1373 if (error != 0) 1374 goto outni; 1375 1376 IEEE80211_UNLOCK(vap->iv_ic); 1377 LKPI_80211_LHW_LOCK(lhw); 1378 1379 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1380 1381 /* Wake tx queues to get packet(s) out. */ 1382 lkpi_wake_tx_queues(hw, sta, true, true); 1383 1384 /* flush, no drop */ 1385 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1386 1387 /* End mgd_complete_tx. */ 1388 if (lsta->in_mgd) { 1389 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1390 prep_tx_info.success = false; 1391 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1392 lsta->in_mgd = false; 1393 } 1394 1395 /* sync_rx_queues */ 1396 lkpi_80211_mo_sync_rx_queues(hw); 1397 1398 /* sta_pre_rcu_remove */ 1399 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1400 1401 /* Take the station down. */ 1402 1403 /* Update sta and change state (from AUTH) to NONE. */ 1404 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1405 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1406 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1407 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1408 if (error != 0) 1409 goto out; 1410 1411 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1412 1413 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1414 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1415 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1416 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1417 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1418 if (error != 0) { 1419 IMPROVE("do we need to undo the chan ctx?"); 1420 goto out; 1421 } 1422 #if 0 1423 lsta->added_to_drv = false; /* mo manages. */ 1424 #endif 1425 1426 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1427 1428 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1429 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1430 lkpi_disassoc(sta, vif, lhw); 1431 1432 IMPROVE("Any bss_info changes to announce?"); 1433 bss_changed = 0; 1434 vif->bss_conf.qos = 0; 1435 bss_changed |= BSS_CHANGED_QOS; 1436 vif->bss_conf.ssid_len = 0; 1437 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1438 bss_changed |= BSS_CHANGED_BSSID; 1439 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1440 1441 lkpi_lsta_remove(lsta, lvif); 1442 1443 /* conf_tx */ 1444 1445 /* Take the chan ctx down. */ 1446 if (vif->chanctx_conf != NULL) { 1447 struct ieee80211_chanctx_conf *conf; 1448 1449 conf = vif->chanctx_conf; 1450 /* Remove vif context. */ 1451 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1452 /* NB: vif->chanctx_conf is NULL now. */ 1453 1454 /* Remove chan ctx. */ 1455 lkpi_80211_mo_remove_chanctx(hw, conf); 1456 free(conf, M_LKPI80211); 1457 } 1458 1459 error = EALREADY; 1460 out: 1461 LKPI_80211_LHW_UNLOCK(lhw); 1462 IEEE80211_LOCK(vap->iv_ic); 1463 outni: 1464 if (ni != NULL) 1465 ieee80211_free_node(ni); 1466 return (error); 1467 } 1468 1469 static int 1470 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1471 { 1472 int error; 1473 1474 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1475 if (error != 0 && error != EALREADY) 1476 return (error); 1477 1478 /* At this point iv_bss is long a new node! */ 1479 1480 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1481 return (error); 1482 } 1483 1484 static int 1485 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1486 { 1487 int error; 1488 1489 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1490 return (error); 1491 } 1492 1493 static int 1494 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1495 { 1496 int error; 1497 1498 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1499 return (error); 1500 } 1501 1502 static int 1503 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1504 { 1505 struct lkpi_hw *lhw; 1506 struct ieee80211_hw *hw; 1507 struct lkpi_vif *lvif; 1508 struct ieee80211_vif *vif; 1509 struct ieee80211_node *ni; 1510 struct lkpi_sta *lsta; 1511 struct ieee80211_sta *sta; 1512 struct ieee80211_prep_tx_info prep_tx_info; 1513 enum ieee80211_bss_changed bss_changed; 1514 int error; 1515 1516 lhw = vap->iv_ic->ic_softc; 1517 hw = LHW_TO_HW(lhw); 1518 lvif = VAP_TO_LVIF(vap); 1519 vif = LVIF_TO_VIF(lvif); 1520 1521 IEEE80211_UNLOCK(vap->iv_ic); 1522 LKPI_80211_LHW_LOCK(lhw); 1523 ni = NULL; 1524 1525 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1526 "and to lesser extend ieee80211_notify_node_join"); 1527 1528 /* Finish assoc. */ 1529 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1530 ni = ieee80211_ref_node(vap->iv_bss); 1531 lsta = ni->ni_drv_data; 1532 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1533 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1534 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1535 sta = LSTA_TO_STA(lsta); 1536 sta->aid = IEEE80211_NODE_AID(ni); 1537 #ifdef LKPI_80211_WME 1538 if (vap->iv_flags & IEEE80211_F_WME) 1539 sta->wme = true; 1540 #endif 1541 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1542 if (error != 0) 1543 goto out; 1544 1545 IMPROVE("wme / conf_tx [all]"); 1546 1547 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1548 bss_changed = 0; 1549 #ifdef LKPI_80211_WME 1550 bss_changed |= lkpi_wme_update(lhw, vap, true); 1551 #endif 1552 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1553 vif->bss_conf.assoc = true; 1554 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1555 bss_changed |= BSS_CHANGED_ASSOC; 1556 } 1557 /* We set SSID but this is not BSSID! */ 1558 vif->bss_conf.ssid_len = ni->ni_esslen; 1559 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1560 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1561 vif->bss_conf.use_short_preamble) { 1562 vif->bss_conf.use_short_preamble ^= 1; 1563 /* bss_changed |= BSS_CHANGED_??? */ 1564 } 1565 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1566 vif->bss_conf.use_short_slot) { 1567 vif->bss_conf.use_short_slot ^= 1; 1568 /* bss_changed |= BSS_CHANGED_??? */ 1569 } 1570 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1571 vif->bss_conf.qos) { 1572 vif->bss_conf.qos ^= 1; 1573 bss_changed |= BSS_CHANGED_QOS; 1574 } 1575 1576 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1577 1578 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1579 1580 /* - change_chanctx (if needed) 1581 * - event_callback 1582 */ 1583 1584 /* End mgd_complete_tx. */ 1585 if (lsta->in_mgd) { 1586 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1587 prep_tx_info.success = true; 1588 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1589 lsta->in_mgd = false; 1590 } 1591 1592 lkpi_hw_conf_idle(hw, false); 1593 1594 /* 1595 * And then: 1596 * - (more packets)? 1597 * - set_key 1598 * - set_default_unicast_key 1599 * - set_key (?) 1600 * - ipv6_addr_change (?) 1601 */ 1602 /* Prepare_multicast && configure_filter. */ 1603 lhw->update_mc = true; 1604 lkpi_update_mcast_filter(vap->iv_ic, true); 1605 1606 if (!ieee80211_node_is_authorized(ni)) { 1607 IMPROVE("net80211 does not consider node authorized"); 1608 } 1609 1610 /* Update sta_state (ASSOC to AUTHORIZED). */ 1611 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1612 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1613 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1614 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1615 if (error != 0) { 1616 IMPROVE("undo some changes?"); 1617 goto out; 1618 } 1619 1620 /* - drv_config (?) 1621 * - bss_info_changed 1622 * - set_rekey_data (?) 1623 * 1624 * And now we should be passing packets. 1625 */ 1626 IMPROVE("Need that bssid setting, and the keys"); 1627 1628 bss_changed = 0; 1629 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1630 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1631 1632 out: 1633 LKPI_80211_LHW_UNLOCK(lhw); 1634 IEEE80211_LOCK(vap->iv_ic); 1635 if (ni != NULL) 1636 ieee80211_free_node(ni); 1637 return (error); 1638 } 1639 1640 static int 1641 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1642 { 1643 int error; 1644 1645 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1646 if (error == 0) 1647 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1648 return (error); 1649 } 1650 1651 static int 1652 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1653 { 1654 struct lkpi_hw *lhw; 1655 struct ieee80211_hw *hw; 1656 struct lkpi_vif *lvif; 1657 struct ieee80211_vif *vif; 1658 struct ieee80211_node *ni; 1659 struct lkpi_sta *lsta; 1660 struct ieee80211_sta *sta; 1661 struct ieee80211_prep_tx_info prep_tx_info; 1662 #if 0 1663 enum ieee80211_bss_changed bss_changed; 1664 #endif 1665 int error; 1666 1667 lhw = vap->iv_ic->ic_softc; 1668 hw = LHW_TO_HW(lhw); 1669 lvif = VAP_TO_LVIF(vap); 1670 vif = LVIF_TO_VIF(lvif); 1671 1672 /* Keep ni around. */ 1673 ni = ieee80211_ref_node(vap->iv_bss); 1674 lsta = ni->ni_drv_data; 1675 sta = LSTA_TO_STA(lsta); 1676 1677 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1678 1679 IEEE80211_UNLOCK(vap->iv_ic); 1680 LKPI_80211_LHW_LOCK(lhw); 1681 1682 /* flush, drop. */ 1683 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1684 1685 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1686 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1687 !lsta->in_mgd) { 1688 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1689 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1690 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1691 lsta->in_mgd = true; 1692 } 1693 1694 LKPI_80211_LHW_UNLOCK(lhw); 1695 IEEE80211_LOCK(vap->iv_ic); 1696 1697 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1698 error = lvif->iv_newstate(vap, nstate, arg); 1699 if (error != 0) 1700 goto outni; 1701 1702 IEEE80211_UNLOCK(vap->iv_ic); 1703 LKPI_80211_LHW_LOCK(lhw); 1704 1705 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1706 1707 /* Wake tx queues to get packet(s) out. */ 1708 lkpi_wake_tx_queues(hw, sta, true, true); 1709 1710 /* flush, no drop */ 1711 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1712 1713 /* End mgd_complete_tx. */ 1714 if (lsta->in_mgd) { 1715 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1716 prep_tx_info.success = false; 1717 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1718 lsta->in_mgd = false; 1719 } 1720 1721 #if 0 1722 /* sync_rx_queues */ 1723 lkpi_80211_mo_sync_rx_queues(hw); 1724 1725 /* sta_pre_rcu_remove */ 1726 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1727 #endif 1728 1729 /* Take the station down. */ 1730 1731 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1732 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1733 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1734 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1735 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1736 if (error != 0) 1737 goto out; 1738 1739 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1740 1741 /* Update sta_state (ASSOC to AUTH). */ 1742 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1743 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1744 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1745 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1746 if (error != 0) 1747 goto out; 1748 1749 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1750 1751 #if 0 1752 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1753 lkpi_disassoc(sta, vif, lhw); 1754 #endif 1755 1756 error = EALREADY; 1757 out: 1758 LKPI_80211_LHW_UNLOCK(lhw); 1759 IEEE80211_LOCK(vap->iv_ic); 1760 outni: 1761 if (ni != NULL) 1762 ieee80211_free_node(ni); 1763 return (error); 1764 } 1765 1766 static int 1767 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1768 { 1769 struct lkpi_hw *lhw; 1770 struct ieee80211_hw *hw; 1771 struct lkpi_vif *lvif; 1772 struct ieee80211_vif *vif; 1773 struct ieee80211_node *ni; 1774 struct lkpi_sta *lsta; 1775 struct ieee80211_sta *sta; 1776 struct ieee80211_prep_tx_info prep_tx_info; 1777 enum ieee80211_bss_changed bss_changed; 1778 int error; 1779 1780 lhw = vap->iv_ic->ic_softc; 1781 hw = LHW_TO_HW(lhw); 1782 lvif = VAP_TO_LVIF(vap); 1783 vif = LVIF_TO_VIF(lvif); 1784 1785 /* Keep ni around. */ 1786 ni = ieee80211_ref_node(vap->iv_bss); 1787 lsta = ni->ni_drv_data; 1788 sta = LSTA_TO_STA(lsta); 1789 1790 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1791 1792 IEEE80211_UNLOCK(vap->iv_ic); 1793 LKPI_80211_LHW_LOCK(lhw); 1794 1795 /* flush, drop. */ 1796 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1797 1798 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1799 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1800 !lsta->in_mgd) { 1801 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1802 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1803 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1804 lsta->in_mgd = true; 1805 } 1806 1807 LKPI_80211_LHW_UNLOCK(lhw); 1808 IEEE80211_LOCK(vap->iv_ic); 1809 1810 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1811 error = lvif->iv_newstate(vap, nstate, arg); 1812 if (error != 0) 1813 goto outni; 1814 1815 IEEE80211_UNLOCK(vap->iv_ic); 1816 LKPI_80211_LHW_LOCK(lhw); 1817 1818 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1819 1820 /* Wake tx queues to get packet(s) out. */ 1821 lkpi_wake_tx_queues(hw, sta, true, true); 1822 1823 /* flush, no drop */ 1824 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1825 1826 /* End mgd_complete_tx. */ 1827 if (lsta->in_mgd) { 1828 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1829 prep_tx_info.success = false; 1830 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1831 lsta->in_mgd = false; 1832 } 1833 1834 /* sync_rx_queues */ 1835 lkpi_80211_mo_sync_rx_queues(hw); 1836 1837 /* sta_pre_rcu_remove */ 1838 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1839 1840 /* Take the station down. */ 1841 1842 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1843 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1844 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1845 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1846 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1847 if (error != 0) 1848 goto out; 1849 1850 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1851 1852 /* Update sta_state (ASSOC to AUTH). */ 1853 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1854 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1855 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1856 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1857 if (error != 0) 1858 goto out; 1859 1860 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1861 1862 /* Update sta and change state (from AUTH) to NONE. */ 1863 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1864 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1865 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1866 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1867 if (error != 0) 1868 goto out; 1869 1870 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1871 1872 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1873 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1874 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1875 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1876 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1877 if (error != 0) { 1878 IMPROVE("do we need to undo the chan ctx?"); 1879 goto out; 1880 } 1881 #if 0 1882 lsta->added_to_drv = false; /* mo manages. */ 1883 #endif 1884 1885 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1886 1887 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1888 /* 1889 * One would expect this to happen when going off AUTHORIZED. 1890 * See comment there; removes the sta from fw. 1891 */ 1892 lkpi_disassoc(sta, vif, lhw); 1893 1894 IMPROVE("Any bss_info changes to announce?"); 1895 bss_changed = 0; 1896 vif->bss_conf.qos = 0; 1897 bss_changed |= BSS_CHANGED_QOS; 1898 vif->bss_conf.ssid_len = 0; 1899 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1900 bss_changed |= BSS_CHANGED_BSSID; 1901 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1902 1903 lkpi_lsta_remove(lsta, lvif); 1904 1905 /* conf_tx */ 1906 1907 /* Take the chan ctx down. */ 1908 if (vif->chanctx_conf != NULL) { 1909 struct ieee80211_chanctx_conf *conf; 1910 1911 conf = vif->chanctx_conf; 1912 /* Remove vif context. */ 1913 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1914 /* NB: vif->chanctx_conf is NULL now. */ 1915 1916 /* Remove chan ctx. */ 1917 lkpi_80211_mo_remove_chanctx(hw, conf); 1918 free(conf, M_LKPI80211); 1919 } 1920 1921 error = EALREADY; 1922 out: 1923 LKPI_80211_LHW_UNLOCK(lhw); 1924 IEEE80211_LOCK(vap->iv_ic); 1925 outni: 1926 if (ni != NULL) 1927 ieee80211_free_node(ni); 1928 return (error); 1929 } 1930 1931 static int 1932 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1933 { 1934 1935 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1936 } 1937 1938 static int 1939 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1940 { 1941 int error; 1942 1943 error = lkpi_sta_run_to_init(vap, nstate, arg); 1944 if (error != 0 && error != EALREADY) 1945 return (error); 1946 1947 /* At this point iv_bss is long a new node! */ 1948 1949 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1950 return (error); 1951 } 1952 1953 /* -------------------------------------------------------------------------- */ 1954 1955 /* 1956 * The matches the documented state changes in net80211::sta_newstate(). 1957 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1958 * there are "invalid" (so there is a room for failure here). 1959 */ 1960 struct fsm_state { 1961 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1962 enum ieee80211_state ostate; 1963 enum ieee80211_state nstate; 1964 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1965 } sta_state_fsm[] = { 1966 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1967 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1968 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1969 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1970 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1971 1972 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1973 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1974 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1975 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1976 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1977 1978 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1979 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1980 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1981 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1982 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1983 1984 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1985 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1986 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1987 1988 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1989 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1990 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1991 1992 /* Dummy at the end without handler. */ 1993 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1994 }; 1995 1996 static int 1997 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1998 { 1999 struct ieee80211com *ic; 2000 struct lkpi_hw *lhw; 2001 struct lkpi_vif *lvif; 2002 struct ieee80211_vif *vif; 2003 struct fsm_state *s; 2004 enum ieee80211_state ostate; 2005 int error; 2006 2007 ic = vap->iv_ic; 2008 IEEE80211_LOCK_ASSERT(ic); 2009 ostate = vap->iv_state; 2010 2011 #ifdef LINUXKPI_DEBUG_80211 2012 if (linuxkpi_debug_80211 & D80211_TRACE) 2013 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2014 __func__, __LINE__, vap, nstate, arg); 2015 #endif 2016 2017 if (vap->iv_opmode == IEEE80211_M_STA) { 2018 2019 lhw = ic->ic_softc; 2020 lvif = VAP_TO_LVIF(vap); 2021 vif = LVIF_TO_VIF(lvif); 2022 2023 /* No need to replicate this in most state handlers. */ 2024 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2025 lkpi_stop_hw_scan(lhw, vif); 2026 2027 s = sta_state_fsm; 2028 2029 } else { 2030 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2031 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2032 return (ENOSYS); 2033 } 2034 2035 error = 0; 2036 for (; s->handler != NULL; s++) { 2037 if (ostate == s->ostate && nstate == s->nstate) { 2038 #ifdef LINUXKPI_DEBUG_80211 2039 if (linuxkpi_debug_80211 & D80211_TRACE) 2040 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2041 " %d (%s): arg %d.\n", __func__, 2042 ostate, ieee80211_state_name[ostate], 2043 nstate, ieee80211_state_name[nstate], arg); 2044 #endif 2045 error = s->handler(vap, nstate, arg); 2046 break; 2047 } 2048 } 2049 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2050 2051 if (s->handler == NULL) { 2052 IMPROVE("turn this into a KASSERT\n"); 2053 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2054 "%d (%s) -> %d (%s)\n", __func__, 2055 ostate, ieee80211_state_name[ostate], 2056 nstate, ieee80211_state_name[nstate]); 2057 return (ENOSYS); 2058 } 2059 2060 if (error == EALREADY) { 2061 #ifdef LINUXKPI_DEBUG_80211 2062 if (linuxkpi_debug_80211 & D80211_TRACE) 2063 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2064 "%d (%s): iv_newstate already handled: %d.\n", 2065 __func__, ostate, ieee80211_state_name[ostate], 2066 nstate, ieee80211_state_name[nstate], error); 2067 #endif 2068 return (0); 2069 } 2070 2071 if (error != 0) { 2072 /* XXX-BZ currently expected so ignore. */ 2073 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2074 "%d (%s) -> %d (%s)\n", __func__, error, 2075 ostate, ieee80211_state_name[ostate], 2076 nstate, ieee80211_state_name[nstate]); 2077 /* return (error); */ 2078 } 2079 2080 #ifdef LINUXKPI_DEBUG_80211 2081 if (linuxkpi_debug_80211 & D80211_TRACE) 2082 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2083 "calling net80211 parent\n", 2084 __func__, __LINE__, vap, nstate, arg); 2085 #endif 2086 2087 return (lvif->iv_newstate(vap, nstate, arg)); 2088 } 2089 2090 /* -------------------------------------------------------------------------- */ 2091 2092 /* 2093 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2094 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2095 * new node without us knowing and thus our ni/lsta are out of sync. 2096 */ 2097 static struct ieee80211_node * 2098 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2099 { 2100 struct lkpi_vif *lvif; 2101 struct ieee80211_node *obss; 2102 struct lkpi_sta *lsta; 2103 struct ieee80211_sta *sta; 2104 2105 obss = vap->iv_bss; 2106 2107 #ifdef LINUXKPI_DEBUG_80211 2108 if (linuxkpi_debug_80211 & D80211_TRACE) 2109 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2110 "ni %p ni_drv_data %p\n", __func__, 2111 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2112 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2113 #endif 2114 2115 /* Nothing to copy from. Just return. */ 2116 if (obss == NULL || obss->ni_drv_data == NULL) 2117 goto out; 2118 2119 /* Nothing to copy to. Just return. */ 2120 IMPROVE("clearing the obss might still be needed?"); 2121 if (ni == NULL) 2122 goto out; 2123 2124 /* Nothing changed? panic? */ 2125 if (obss == ni) 2126 goto out; 2127 2128 lsta = obss->ni_drv_data; 2129 obss->ni_drv_data = ni->ni_drv_data; 2130 ni->ni_drv_data = lsta; 2131 if (lsta != NULL) { 2132 lsta->ni = ni; 2133 sta = LSTA_TO_STA(lsta); 2134 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2135 } 2136 lsta = obss->ni_drv_data; 2137 if (lsta != NULL) { 2138 lsta->ni = obss; 2139 sta = LSTA_TO_STA(lsta); 2140 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2141 } 2142 2143 out: 2144 lvif = VAP_TO_LVIF(vap); 2145 return (lvif->iv_update_bss(vap, ni)); 2146 } 2147 2148 #ifdef LKPI_80211_WME 2149 static int 2150 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2151 { 2152 struct ieee80211com *ic; 2153 struct ieee80211_hw *hw; 2154 struct lkpi_vif *lvif; 2155 struct ieee80211_vif *vif; 2156 struct chanAccParams chp; 2157 struct wmeParams wmeparr[WME_NUM_AC]; 2158 struct ieee80211_tx_queue_params txqp; 2159 enum ieee80211_bss_changed changed; 2160 int error; 2161 uint16_t ac; 2162 2163 IMPROVE(); 2164 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2165 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2166 2167 if (vap == NULL) 2168 return (0); 2169 2170 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2171 return (0); 2172 2173 if (lhw->ops->conf_tx == NULL) 2174 return (0); 2175 2176 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2177 lhw->update_wme = true; 2178 return (0); 2179 } 2180 lhw->update_wme = false; 2181 2182 ic = lhw->ic; 2183 ieee80211_wme_ic_getparams(ic, &chp); 2184 IEEE80211_LOCK(ic); 2185 for (ac = 0; ac < WME_NUM_AC; ac++) 2186 wmeparr[ac] = chp.cap_wmeParams[ac]; 2187 IEEE80211_UNLOCK(ic); 2188 2189 hw = LHW_TO_HW(lhw); 2190 lvif = VAP_TO_LVIF(vap); 2191 vif = LVIF_TO_VIF(lvif); 2192 2193 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2194 LKPI_80211_LHW_LOCK(lhw); 2195 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2196 struct wmeParams *wmep; 2197 2198 wmep = &wmeparr[ac]; 2199 bzero(&txqp, sizeof(txqp)); 2200 txqp.cw_min = wmep->wmep_logcwmin; 2201 txqp.cw_max = wmep->wmep_logcwmax; 2202 txqp.txop = wmep->wmep_txopLimit; 2203 txqp.aifs = wmep->wmep_aifsn; 2204 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2205 if (error != 0) 2206 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2207 __func__, ac, error); 2208 } 2209 LKPI_80211_LHW_UNLOCK(lhw); 2210 changed = BSS_CHANGED_QOS; 2211 if (!planned) 2212 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2213 2214 return (changed); 2215 } 2216 #endif 2217 2218 static int 2219 lkpi_ic_wme_update(struct ieee80211com *ic) 2220 { 2221 #ifdef LKPI_80211_WME 2222 struct ieee80211vap *vap; 2223 struct lkpi_hw *lhw; 2224 2225 IMPROVE("Use the per-VAP callback in net80211."); 2226 vap = TAILQ_FIRST(&ic->ic_vaps); 2227 if (vap == NULL) 2228 return (0); 2229 2230 lhw = ic->ic_softc; 2231 2232 lkpi_wme_update(lhw, vap, false); 2233 #endif 2234 return (0); /* unused */ 2235 } 2236 2237 static struct ieee80211vap * 2238 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2239 int unit, enum ieee80211_opmode opmode, int flags, 2240 const uint8_t bssid[IEEE80211_ADDR_LEN], 2241 const uint8_t mac[IEEE80211_ADDR_LEN]) 2242 { 2243 struct lkpi_hw *lhw; 2244 struct ieee80211_hw *hw; 2245 struct lkpi_vif *lvif; 2246 struct ieee80211vap *vap; 2247 struct ieee80211_vif *vif; 2248 enum ieee80211_bss_changed changed; 2249 size_t len; 2250 int error, i; 2251 2252 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2253 return (NULL); 2254 2255 lhw = ic->ic_softc; 2256 hw = LHW_TO_HW(lhw); 2257 2258 len = sizeof(*lvif); 2259 len += hw->vif_data_size; /* vif->drv_priv */ 2260 2261 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2262 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2263 TAILQ_INIT(&lvif->lsta_head); 2264 vap = LVIF_TO_VAP(lvif); 2265 2266 vif = LVIF_TO_VIF(lvif); 2267 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2268 vif->p2p = false; 2269 vif->probe_req_reg = false; 2270 vif->type = lkpi_opmode_to_vif_type(opmode); 2271 lvif->wdev.iftype = vif->type; 2272 /* Need to fill in other fields as well. */ 2273 IMPROVE(); 2274 2275 /* XXX-BZ hardcoded for now! */ 2276 #if 1 2277 vif->chanctx_conf = NULL; 2278 vif->bss_conf.idle = true; 2279 vif->bss_conf.ps = false; 2280 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2281 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2282 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2283 vif->bss_conf.qos = false; 2284 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2285 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2286 vif->bss_conf.assoc = false; 2287 vif->bss_conf.aid = 0; 2288 /* 2289 * We need to initialize it to something as the bss_info_changed call 2290 * will try to copy from it in iwlwifi and NULL is a panic. 2291 * We will set the proper one in scan_to_auth() before being assoc. 2292 * NB: the logic there with using an array as bssid_override and checking 2293 * for non-NULL later is flawed but in their workflow does not seem to 2294 * matter. 2295 */ 2296 vif->bss_conf.bssid = zerobssid; 2297 #endif 2298 #if 0 2299 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2300 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2301 vif->bss_conf.beacon_int = ic->ic_bintval; 2302 /* iwlwifi bug. */ 2303 if (vif->bss_conf.beacon_int < 16) 2304 vif->bss_conf.beacon_int = 16; 2305 #endif 2306 2307 /* Setup queue defaults; driver may override in (*add_interface). */ 2308 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2309 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2310 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2311 else if (hw->queues >= IEEE80211_NUM_ACS) 2312 vif->hw_queue[i] = i; 2313 else 2314 vif->hw_queue[i] = 0; 2315 2316 /* Initialize the queue to running. Stopped? */ 2317 lvif->hw_queue_stopped[i] = false; 2318 } 2319 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2320 2321 IMPROVE(); 2322 2323 error = lkpi_80211_mo_start(hw); 2324 if (error != 0) { 2325 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2326 mtx_destroy(&lvif->mtx); 2327 free(lvif, M_80211_VAP); 2328 return (NULL); 2329 } 2330 2331 error = lkpi_80211_mo_add_interface(hw, vif); 2332 if (error != 0) { 2333 IMPROVE(); /* XXX-BZ mo_stop()? */ 2334 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2335 mtx_destroy(&lvif->mtx); 2336 free(lvif, M_80211_VAP); 2337 return (NULL); 2338 } 2339 2340 LKPI_80211_LHW_LVIF_LOCK(lhw); 2341 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2342 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2343 2344 /* Set bss_info. */ 2345 changed = 0; 2346 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2347 2348 /* conf_tx setup; default WME? */ 2349 2350 /* Force MC init. */ 2351 lkpi_update_mcast_filter(ic, true); 2352 2353 IMPROVE(); 2354 2355 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2356 2357 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2358 lvif->iv_newstate = vap->iv_newstate; 2359 vap->iv_newstate = lkpi_iv_newstate; 2360 lvif->iv_update_bss = vap->iv_update_bss; 2361 vap->iv_update_bss = lkpi_iv_update_bss; 2362 2363 /* Key management. */ 2364 if (lhw->ops->set_key != NULL) { 2365 #ifdef LKPI_80211_HW_CRYPTO 2366 vap->iv_key_set = lkpi_iv_key_set; 2367 vap->iv_key_delete = lkpi_iv_key_delete; 2368 #endif 2369 } 2370 2371 ieee80211_ratectl_init(vap); 2372 2373 /* Complete setup. */ 2374 ieee80211_vap_attach(vap, ieee80211_media_change, 2375 ieee80211_media_status, mac); 2376 2377 if (hw->max_listen_interval == 0) 2378 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2379 hw->conf.listen_interval = hw->max_listen_interval; 2380 ic->ic_set_channel(ic); 2381 2382 /* XXX-BZ do we need to be able to update these? */ 2383 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2384 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2385 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2386 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2387 /* any others? */ 2388 IMPROVE(); 2389 2390 return (vap); 2391 } 2392 2393 void 2394 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2395 { 2396 2397 wiphy_unregister(hw->wiphy); 2398 linuxkpi_ieee80211_ifdetach(hw); 2399 2400 IMPROVE(); 2401 } 2402 2403 void 2404 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2405 { 2406 2407 TODO(); 2408 } 2409 2410 static void 2411 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2412 { 2413 struct ieee80211com *ic; 2414 struct lkpi_hw *lhw; 2415 struct ieee80211_hw *hw; 2416 struct lkpi_vif *lvif; 2417 struct ieee80211_vif *vif; 2418 2419 lvif = VAP_TO_LVIF(vap); 2420 vif = LVIF_TO_VIF(lvif); 2421 ic = vap->iv_ic; 2422 lhw = ic->ic_softc; 2423 hw = LHW_TO_HW(lhw); 2424 2425 LKPI_80211_LHW_LVIF_LOCK(lhw); 2426 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2427 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2428 lkpi_80211_mo_remove_interface(hw, vif); 2429 2430 ieee80211_ratectl_deinit(vap); 2431 ieee80211_vap_detach(vap); 2432 mtx_destroy(&lvif->mtx); 2433 free(lvif, M_80211_VAP); 2434 } 2435 2436 static void 2437 lkpi_ic_update_mcast(struct ieee80211com *ic) 2438 { 2439 2440 lkpi_update_mcast_filter(ic, false); 2441 TRACEOK(); 2442 } 2443 2444 static void 2445 lkpi_ic_update_promisc(struct ieee80211com *ic) 2446 { 2447 2448 UNIMPLEMENTED; 2449 } 2450 2451 static void 2452 lkpi_ic_update_chw(struct ieee80211com *ic) 2453 { 2454 2455 UNIMPLEMENTED; 2456 } 2457 2458 /* Start / stop device. */ 2459 static void 2460 lkpi_ic_parent(struct ieee80211com *ic) 2461 { 2462 struct lkpi_hw *lhw; 2463 struct ieee80211_hw *hw; 2464 int error; 2465 bool start_all; 2466 2467 IMPROVE(); 2468 2469 lhw = ic->ic_softc; 2470 hw = LHW_TO_HW(lhw); 2471 start_all = false; 2472 2473 /* IEEE80211_UNLOCK(ic); */ 2474 LKPI_80211_LHW_LOCK(lhw); 2475 if (ic->ic_nrunning > 0) { 2476 error = lkpi_80211_mo_start(hw); 2477 if (error == 0) 2478 start_all = true; 2479 } else { 2480 lkpi_80211_mo_stop(hw); 2481 } 2482 LKPI_80211_LHW_UNLOCK(lhw); 2483 /* IEEE80211_LOCK(ic); */ 2484 2485 if (start_all) 2486 ieee80211_start_all(ic); 2487 } 2488 2489 bool 2490 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2491 size_t ie_ids_len) 2492 { 2493 int i; 2494 2495 for (i = 0; i < ie_ids_len; i++) { 2496 if (ie == *ie_ids) 2497 return (true); 2498 } 2499 2500 return (false); 2501 } 2502 2503 /* Return true if skipped; false if error. */ 2504 bool 2505 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2506 { 2507 size_t x; 2508 uint8_t l; 2509 2510 x = *xp; 2511 2512 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2513 __func__, x, ies_len, ies)); 2514 l = ies[x + 1]; 2515 x += 2 + l; 2516 2517 if (x > ies_len) 2518 return (false); 2519 2520 *xp = x; 2521 return (true); 2522 } 2523 2524 static uint8_t * 2525 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2526 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2527 { 2528 struct ieee80211_supported_band *supband; 2529 struct linuxkpi_ieee80211_channel *channels; 2530 struct ieee80211com *ic; 2531 const struct ieee80211_channel *chan; 2532 const struct ieee80211_rateset *rs; 2533 uint8_t *pb; 2534 int band, i; 2535 2536 ic = vap->iv_ic; 2537 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2538 if ((band_mask & (1 << band)) == 0) 2539 continue; 2540 2541 supband = hw->wiphy->bands[band]; 2542 /* 2543 * This should not happen; 2544 * band_mask is a bitmask of valid bands to scan on. 2545 */ 2546 if (supband == NULL || supband->n_channels == 0) 2547 continue; 2548 2549 /* Find a first channel to get the mode and rates from. */ 2550 channels = supband->channels; 2551 chan = NULL; 2552 for (i = 0; i < supband->n_channels; i++) { 2553 2554 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2555 continue; 2556 2557 chan = ieee80211_find_channel(ic, 2558 channels[i].center_freq, 0); 2559 if (chan != NULL) 2560 break; 2561 } 2562 2563 /* This really should not happen. */ 2564 if (chan == NULL) 2565 continue; 2566 2567 pb = p; 2568 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 2569 p = ieee80211_add_rates(p, rs); 2570 p = ieee80211_add_xrates(p, rs); 2571 2572 #if defined(LKPI_80211_HT) 2573 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 2574 struct ieee80211_channel *c; 2575 2576 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2577 vap->iv_flags_ht); 2578 p = ieee80211_add_htcap_ch(p, vap, c); 2579 } 2580 #endif 2581 #if defined(LKPI_80211_VHT) 2582 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 2583 struct ieee80211_channel *c; 2584 2585 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2586 vap->iv_flags_ht); 2587 c = ieee80211_vht_adjust_channel(ic, c, 2588 vap->iv_vht_flags); 2589 p = ieee80211_add_vhtcap_ch(p, vap, c); 2590 } 2591 #endif 2592 2593 scan_ies->ies[band] = pb; 2594 scan_ies->len[band] = p - pb; 2595 } 2596 2597 /* Add common_ies */ 2598 pb = p; 2599 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2600 vap->iv_wpa_ie != NULL) { 2601 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2602 p += 2 + vap->iv_wpa_ie[1]; 2603 } 2604 if (vap->iv_appie_probereq != NULL) { 2605 memcpy(p, vap->iv_appie_probereq->ie_data, 2606 vap->iv_appie_probereq->ie_len); 2607 p += vap->iv_appie_probereq->ie_len; 2608 } 2609 scan_ies->common_ies = pb; 2610 scan_ies->common_ie_len = p - pb; 2611 2612 return (p); 2613 } 2614 2615 static void 2616 lkpi_ic_scan_start(struct ieee80211com *ic) 2617 { 2618 struct lkpi_hw *lhw; 2619 struct ieee80211_hw *hw; 2620 struct lkpi_vif *lvif; 2621 struct ieee80211_vif *vif; 2622 struct ieee80211_scan_state *ss; 2623 struct ieee80211vap *vap; 2624 int error; 2625 bool is_hw_scan; 2626 2627 lhw = ic->ic_softc; 2628 LKPI_80211_LHW_SCAN_LOCK(lhw); 2629 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2630 /* A scan is still running. */ 2631 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2632 return; 2633 } 2634 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2635 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2636 2637 ss = ic->ic_scan; 2638 vap = ss->ss_vap; 2639 if (vap->iv_state != IEEE80211_S_SCAN) { 2640 IMPROVE("We need to be able to scan if not in S_SCAN"); 2641 return; 2642 } 2643 2644 hw = LHW_TO_HW(lhw); 2645 if (!is_hw_scan) { 2646 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2647 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2648 sw_scan: 2649 lvif = VAP_TO_LVIF(vap); 2650 vif = LVIF_TO_VIF(lvif); 2651 2652 if (vap->iv_state == IEEE80211_S_SCAN) 2653 lkpi_hw_conf_idle(hw, false); 2654 2655 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2656 /* net80211::scan_start() handled PS for us. */ 2657 IMPROVE(); 2658 /* XXX Also means it is too late to flush queues? 2659 * need to check iv_sta_ps or overload? */ 2660 /* XXX want to adjust ss end time/ maxdwell? */ 2661 2662 } else { 2663 struct ieee80211_channel *c; 2664 struct ieee80211_scan_request *hw_req; 2665 struct linuxkpi_ieee80211_channel *lc, **cpp; 2666 struct cfg80211_ssid *ssids; 2667 struct cfg80211_scan_6ghz_params *s6gp; 2668 size_t chan_len, nchan, ssids_len, s6ghzlen; 2669 int band, i, ssid_count, common_ie_len; 2670 uint32_t band_mask; 2671 uint8_t *ie, *ieend; 2672 2673 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2674 IMPROVE("individual band scans not yet supported"); 2675 /* In theory net80211 would have to drive this. */ 2676 return; 2677 } 2678 2679 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2680 ssids_len = ssid_count * sizeof(*ssids); 2681 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2682 2683 band_mask = 0; 2684 nchan = 0; 2685 for (i = ss->ss_next; i < ss->ss_last; i++) { 2686 nchan++; 2687 band = lkpi_net80211_chan_to_nl80211_band( 2688 ss->ss_chans[ss->ss_next + i]); 2689 band_mask |= (1 << band); 2690 } 2691 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2692 2693 common_ie_len = 0; 2694 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2695 vap->iv_wpa_ie != NULL) 2696 common_ie_len += vap->iv_wpa_ie[1]; 2697 if (vap->iv_appie_probereq != NULL) 2698 common_ie_len += vap->iv_appie_probereq->ie_len; 2699 2700 /* We would love to check this at an earlier stage... */ 2701 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2702 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2703 "wiphy->max_scan_ie_len %d\n", __func__, 2704 common_ie_len, hw->wiphy->max_scan_ie_len); 2705 } 2706 2707 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2708 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2709 2710 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2711 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2712 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2713 2714 hw_req->req.flags = 0; /* XXX ??? */ 2715 /* hw_req->req.wdev */ 2716 hw_req->req.wiphy = hw->wiphy; 2717 hw_req->req.no_cck = false; /* XXX */ 2718 #if 0 2719 /* This seems to pessimise default scanning behaviour. */ 2720 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2721 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2722 #endif 2723 #ifdef __notyet__ 2724 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2725 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2726 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2727 #endif 2728 2729 hw_req->req.n_channels = nchan; 2730 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2731 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2732 for (i = 0; i < nchan; i++) { 2733 *(cpp + i) = 2734 (struct linuxkpi_ieee80211_channel *)(lc + i); 2735 } 2736 for (i = 0; i < nchan; i++) { 2737 c = ss->ss_chans[ss->ss_next + i]; 2738 2739 lc->hw_value = c->ic_ieee; 2740 lc->center_freq = c->ic_freq; 2741 /* lc->flags */ 2742 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2743 lc->max_power = c->ic_maxpower; 2744 /* lc-> ... */ 2745 lc++; 2746 } 2747 2748 hw_req->req.n_ssids = ssid_count; 2749 if (hw_req->req.n_ssids > 0) { 2750 ssids = (struct cfg80211_ssid *)lc; 2751 hw_req->req.ssids = ssids; 2752 for (i = 0; i < ssid_count; i++) { 2753 ssids->ssid_len = ss->ss_ssid[i].len; 2754 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2755 ss->ss_ssid[i].len); 2756 ssids++; 2757 } 2758 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2759 } else { 2760 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2761 } 2762 2763 /* 6GHz one day. */ 2764 hw_req->req.n_6ghz_params = 0; 2765 hw_req->req.scan_6ghz_params = NULL; 2766 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2767 /* s6gp->... */ 2768 2769 ie = ieend = (uint8_t *)s6gp; 2770 /* Copy per-band IEs, copy common IEs */ 2771 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2772 hw_req->req.ie = ie; 2773 hw_req->req.ie_len = ieend - ie; 2774 2775 lvif = VAP_TO_LVIF(vap); 2776 vif = LVIF_TO_VIF(lvif); 2777 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2778 if (error != 0) { 2779 ieee80211_cancel_scan(vap); 2780 2781 free(hw_req, M_LKPI80211); 2782 lhw->hw_req = NULL; 2783 2784 /* 2785 * XXX-SIGH magic number. 2786 * rtw88 has a magic "return 1" if offloading scan is 2787 * not possible. Fall back to sw scan in that case. 2788 */ 2789 if (error == 1) { 2790 LKPI_80211_LHW_SCAN_LOCK(lhw); 2791 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 2792 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2793 ieee80211_start_scan(vap, 2794 IEEE80211_SCAN_ACTIVE | 2795 IEEE80211_SCAN_NOPICK | 2796 IEEE80211_SCAN_ONCE, 2797 IEEE80211_SCAN_FOREVER, 2798 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2799 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2800 vap->iv_des_nssid, vap->iv_des_ssid); 2801 goto sw_scan; 2802 } 2803 2804 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2805 __func__, error); 2806 } 2807 } 2808 } 2809 2810 static void 2811 lkpi_ic_scan_end(struct ieee80211com *ic) 2812 { 2813 struct lkpi_hw *lhw; 2814 bool is_hw_scan; 2815 2816 lhw = ic->ic_softc; 2817 LKPI_80211_LHW_SCAN_LOCK(lhw); 2818 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 2819 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2820 return; 2821 } 2822 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2823 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2824 2825 if (!is_hw_scan) { 2826 struct ieee80211_scan_state *ss; 2827 struct ieee80211vap *vap; 2828 struct ieee80211_hw *hw; 2829 struct lkpi_vif *lvif; 2830 struct ieee80211_vif *vif; 2831 2832 ss = ic->ic_scan; 2833 vap = ss->ss_vap; 2834 hw = LHW_TO_HW(lhw); 2835 lvif = VAP_TO_LVIF(vap); 2836 vif = LVIF_TO_VIF(lvif); 2837 2838 lkpi_80211_mo_sw_scan_complete(hw, vif); 2839 2840 /* Send PS to stop buffering if n80211 does not for us? */ 2841 2842 if (vap->iv_state == IEEE80211_S_SCAN) 2843 lkpi_hw_conf_idle(hw, true); 2844 } 2845 } 2846 2847 static void 2848 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 2849 unsigned long maxdwell) 2850 { 2851 struct lkpi_hw *lhw; 2852 bool is_hw_scan; 2853 2854 lhw = ss->ss_ic->ic_softc; 2855 LKPI_80211_LHW_SCAN_LOCK(lhw); 2856 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2857 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2858 if (!is_hw_scan) 2859 lhw->ic_scan_curchan(ss, maxdwell); 2860 } 2861 2862 static void 2863 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 2864 { 2865 struct lkpi_hw *lhw; 2866 bool is_hw_scan; 2867 2868 lhw = ss->ss_ic->ic_softc; 2869 LKPI_80211_LHW_SCAN_LOCK(lhw); 2870 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2871 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2872 if (!is_hw_scan) 2873 lhw->ic_scan_mindwell(ss); 2874 } 2875 2876 static void 2877 lkpi_ic_set_channel(struct ieee80211com *ic) 2878 { 2879 struct lkpi_hw *lhw; 2880 struct ieee80211_hw *hw; 2881 struct ieee80211_channel *c; 2882 struct linuxkpi_ieee80211_channel *chan; 2883 int error; 2884 bool hw_scan_running; 2885 2886 lhw = ic->ic_softc; 2887 2888 /* If we do not support (*config)() save us the work. */ 2889 if (lhw->ops->config == NULL) 2890 return; 2891 2892 /* If we have a hw_scan running do not switch channels. */ 2893 LKPI_80211_LHW_SCAN_LOCK(lhw); 2894 hw_scan_running = 2895 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 2896 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 2897 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2898 if (hw_scan_running) 2899 return; 2900 2901 c = ic->ic_curchan; 2902 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2903 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2904 c, lhw->ops->config); 2905 return; 2906 } 2907 2908 chan = lkpi_find_lkpi80211_chan(lhw, c); 2909 if (chan == NULL) { 2910 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2911 c, chan); 2912 return; 2913 } 2914 2915 /* XXX max power for scanning? */ 2916 IMPROVE(); 2917 2918 hw = LHW_TO_HW(lhw); 2919 cfg80211_chandef_create(&hw->conf.chandef, chan, 2920 NL80211_CHAN_NO_HT); 2921 2922 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2923 if (error != 0 && error != EOPNOTSUPP) { 2924 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2925 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2926 /* XXX should we unroll to the previous chandef? */ 2927 IMPROVE(); 2928 } else { 2929 /* Update radiotap channels as well. */ 2930 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2931 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2932 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2933 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2934 } 2935 2936 /* Currently PS is hard coded off! Not sure it belongs here. */ 2937 IMPROVE(); 2938 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2939 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2940 hw->conf.flags &= ~IEEE80211_CONF_PS; 2941 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2942 if (error != 0 && error != EOPNOTSUPP) 2943 ic_printf(ic, "ERROR: %s: config %#0x returned " 2944 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2945 error); 2946 } 2947 } 2948 2949 static struct ieee80211_node * 2950 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2951 const uint8_t mac[IEEE80211_ADDR_LEN]) 2952 { 2953 struct ieee80211com *ic; 2954 struct lkpi_hw *lhw; 2955 struct ieee80211_node *ni; 2956 struct ieee80211_hw *hw; 2957 struct lkpi_sta *lsta; 2958 2959 ic = vap->iv_ic; 2960 lhw = ic->ic_softc; 2961 2962 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2963 if (lhw->ic_node_alloc == NULL) 2964 return (NULL); 2965 2966 ni = lhw->ic_node_alloc(vap, mac); 2967 if (ni == NULL) 2968 return (NULL); 2969 2970 hw = LHW_TO_HW(lhw); 2971 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2972 if (lsta == NULL) { 2973 if (lhw->ic_node_free != NULL) 2974 lhw->ic_node_free(ni); 2975 return (NULL); 2976 } 2977 2978 return (ni); 2979 } 2980 2981 static int 2982 lkpi_ic_node_init(struct ieee80211_node *ni) 2983 { 2984 struct ieee80211com *ic; 2985 struct lkpi_hw *lhw; 2986 struct lkpi_sta *lsta; 2987 int error; 2988 2989 ic = ni->ni_ic; 2990 lhw = ic->ic_softc; 2991 2992 if (lhw->ic_node_init != NULL) { 2993 error = lhw->ic_node_init(ni); 2994 if (error != 0) 2995 return (error); 2996 } 2997 2998 lsta = ni->ni_drv_data; 2999 3000 /* Now take the reference before linking it to the table. */ 3001 lsta->ni = ieee80211_ref_node(ni); 3002 3003 /* XXX-BZ Sync other state over. */ 3004 IMPROVE(); 3005 3006 return (0); 3007 } 3008 3009 static void 3010 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3011 { 3012 struct ieee80211com *ic; 3013 struct lkpi_hw *lhw; 3014 3015 ic = ni->ni_ic; 3016 lhw = ic->ic_softc; 3017 3018 /* XXX-BZ remove from driver, ... */ 3019 IMPROVE(); 3020 3021 if (lhw->ic_node_cleanup != NULL) 3022 lhw->ic_node_cleanup(ni); 3023 } 3024 3025 static void 3026 lkpi_ic_node_free(struct ieee80211_node *ni) 3027 { 3028 struct ieee80211com *ic; 3029 struct lkpi_hw *lhw; 3030 struct lkpi_sta *lsta; 3031 3032 ic = ni->ni_ic; 3033 lhw = ic->ic_softc; 3034 lsta = ni->ni_drv_data; 3035 if (lsta == NULL) 3036 goto out; 3037 3038 /* XXX-BZ free resources, ... */ 3039 IMPROVE(); 3040 3041 /* Flush mbufq (make sure to release ni refs!). */ 3042 #ifdef __notyet__ 3043 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 3044 __func__, lsta, mbufq_len(&lsta->txq))); 3045 #endif 3046 /* Drain taskq. */ 3047 3048 /* Drain sta->txq[] */ 3049 mtx_destroy(&lsta->txq_mtx); 3050 3051 /* Remove lsta if added_to_drv. */ 3052 3053 /* Remove lsta from vif */ 3054 /* Remove ref from lsta node... */ 3055 /* Free lsta. */ 3056 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 3057 3058 out: 3059 if (lhw->ic_node_free != NULL) 3060 lhw->ic_node_free(ni); 3061 } 3062 3063 static int 3064 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3065 const struct ieee80211_bpf_params *params __unused) 3066 { 3067 struct lkpi_sta *lsta; 3068 3069 lsta = ni->ni_drv_data; 3070 3071 /* Queue the packet and enqueue the task to handle it. */ 3072 LKPI_80211_LSTA_LOCK(lsta); 3073 mbufq_enqueue(&lsta->txq, m); 3074 LKPI_80211_LSTA_UNLOCK(lsta); 3075 3076 #ifdef LINUXKPI_DEBUG_80211 3077 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3078 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3079 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3080 mbufq_len(&lsta->txq)); 3081 #endif 3082 3083 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3084 return (0); 3085 } 3086 3087 static void 3088 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3089 { 3090 struct ieee80211_node *ni; 3091 #ifndef LKPI_80211_HW_CRYPTO 3092 struct ieee80211_frame *wh; 3093 #endif 3094 struct ieee80211_key *k; 3095 struct sk_buff *skb; 3096 struct ieee80211com *ic; 3097 struct lkpi_hw *lhw; 3098 struct ieee80211_hw *hw; 3099 struct lkpi_vif *lvif; 3100 struct ieee80211_vif *vif; 3101 struct ieee80211_channel *c; 3102 struct ieee80211_tx_control control; 3103 struct ieee80211_tx_info *info; 3104 struct ieee80211_sta *sta; 3105 struct ieee80211_hdr *hdr; 3106 void *buf; 3107 uint8_t ac, tid; 3108 3109 M_ASSERTPKTHDR(m); 3110 #ifdef LINUXKPI_DEBUG_80211 3111 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3112 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3113 #endif 3114 3115 ni = lsta->ni; 3116 k = NULL; 3117 #ifndef LKPI_80211_HW_CRYPTO 3118 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3119 wh = mtod(m, struct ieee80211_frame *); 3120 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3121 /* Retrieve key for TX && do software encryption. */ 3122 k = ieee80211_crypto_encap(ni, m); 3123 if (k == NULL) { 3124 ieee80211_free_node(ni); 3125 m_freem(m); 3126 return; 3127 } 3128 } 3129 #endif 3130 3131 ic = ni->ni_ic; 3132 lhw = ic->ic_softc; 3133 hw = LHW_TO_HW(lhw); 3134 c = ni->ni_chan; 3135 3136 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3137 struct lkpi_radiotap_tx_hdr *rtap; 3138 3139 rtap = &lhw->rtap_tx; 3140 rtap->wt_flags = 0; 3141 if (k != NULL) 3142 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3143 if (m->m_flags & M_FRAG) 3144 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3145 IMPROVE(); 3146 rtap->wt_rate = 0; 3147 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3148 rtap->wt_chan_freq = htole16(c->ic_freq); 3149 rtap->wt_chan_flags = htole16(c->ic_flags); 3150 } 3151 3152 ieee80211_radiotap_tx(ni->ni_vap, m); 3153 } 3154 3155 /* 3156 * net80211 should handle hw->extra_tx_headroom. 3157 * Though for as long as we are copying we don't mind. 3158 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3159 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3160 */ 3161 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3162 if (skb == NULL) { 3163 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3164 ieee80211_free_node(ni); 3165 m_freem(m); 3166 return; 3167 } 3168 skb_reserve(skb, hw->extra_tx_headroom); 3169 3170 /* XXX-BZ we need a SKB version understanding mbuf. */ 3171 /* Save the mbuf for ieee80211_tx_complete(). */ 3172 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3173 skb->m = m; 3174 #if 0 3175 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3176 #else 3177 buf = skb_put(skb, m->m_pkthdr.len); 3178 m_copydata(m, 0, m->m_pkthdr.len, buf); 3179 #endif 3180 /* Save the ni. */ 3181 m->m_pkthdr.PH_loc.ptr = ni; 3182 3183 lvif = VAP_TO_LVIF(ni->ni_vap); 3184 vif = LVIF_TO_VIF(lvif); 3185 3186 hdr = (void *)skb->data; 3187 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3188 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3189 skb->priority = 0; 3190 ac = IEEE80211_AC_BE; 3191 } else { 3192 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3193 ac = tid_to_mac80211_ac[tid & 7]; 3194 } 3195 skb_set_queue_mapping(skb, ac); 3196 3197 info = IEEE80211_SKB_CB(skb); 3198 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3199 /* Slight delay; probably only happens on scanning so fine? */ 3200 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3201 c = ic->ic_curchan; 3202 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3203 info->hw_queue = vif->hw_queue[ac]; 3204 if (m->m_flags & M_EAPOL) 3205 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3206 info->control.vif = vif; 3207 /* XXX-BZ info->control.rates */ 3208 3209 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3210 if (lsta != NULL) { 3211 sta = LSTA_TO_STA(lsta); 3212 #ifdef LKPI_80211_HW_CRYPTO 3213 info->control.hw_key = lsta->kc; 3214 #endif 3215 } else { 3216 sta = NULL; 3217 } 3218 3219 IMPROVE(); 3220 3221 if (sta != NULL) { 3222 struct lkpi_txq *ltxq; 3223 3224 ltxq = NULL; 3225 if (!ieee80211_is_data_present(hdr->frame_control)) { 3226 if (vif->type == NL80211_IFTYPE_STATION && 3227 lsta->added_to_drv && 3228 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3229 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3230 } else if (lsta->added_to_drv && 3231 sta->txq[skb->priority] != NULL) { 3232 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3233 } 3234 if (ltxq == NULL) 3235 goto ops_tx; 3236 3237 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3238 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3239 3240 skb_queue_tail(<xq->skbq, skb); 3241 #ifdef LINUXKPI_DEBUG_80211 3242 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3243 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3244 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3245 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3246 __func__, __LINE__, 3247 curthread->td_tid, (unsigned int)ticks, 3248 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3249 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3250 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3251 #endif 3252 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3253 return; 3254 } 3255 3256 ops_tx: 3257 #ifdef LINUXKPI_DEBUG_80211 3258 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3259 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3260 "TX ac %d prio %u qmap %u\n", 3261 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3262 skb, ac, skb->priority, skb->qmap); 3263 #endif 3264 memset(&control, 0, sizeof(control)); 3265 control.sta = sta; 3266 3267 lkpi_80211_mo_tx(hw, &control, skb); 3268 return; 3269 } 3270 3271 static void 3272 lkpi_80211_txq_task(void *ctx, int pending) 3273 { 3274 struct lkpi_sta *lsta; 3275 struct mbufq mq; 3276 struct mbuf *m; 3277 3278 lsta = ctx; 3279 3280 #ifdef LINUXKPI_DEBUG_80211 3281 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3282 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3283 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3284 pending, mbufq_len(&lsta->txq)); 3285 #endif 3286 3287 mbufq_init(&mq, IFQ_MAXLEN); 3288 3289 LKPI_80211_LSTA_LOCK(lsta); 3290 mbufq_concat(&mq, &lsta->txq); 3291 LKPI_80211_LSTA_UNLOCK(lsta); 3292 3293 m = mbufq_dequeue(&mq); 3294 while (m != NULL) { 3295 lkpi_80211_txq_tx_one(lsta, m); 3296 m = mbufq_dequeue(&mq); 3297 } 3298 } 3299 3300 static int 3301 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3302 { 3303 3304 /* XXX TODO */ 3305 IMPROVE(); 3306 3307 /* Quick and dirty cheating hack. */ 3308 struct ieee80211_node *ni; 3309 3310 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3311 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3312 } 3313 3314 static void 3315 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3316 int *n, struct ieee80211_channel *c) 3317 { 3318 struct lkpi_hw *lhw; 3319 struct ieee80211_hw *hw; 3320 struct linuxkpi_ieee80211_channel *channels; 3321 uint8_t bands[IEEE80211_MODE_BYTES]; 3322 int chan_flags, error, i, nchans; 3323 3324 /* Channels */ 3325 lhw = ic->ic_softc; 3326 hw = LHW_TO_HW(lhw); 3327 3328 /* NL80211_BAND_2GHZ */ 3329 nchans = 0; 3330 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3331 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3332 if (nchans > 0) { 3333 memset(bands, 0, sizeof(bands)); 3334 chan_flags = 0; 3335 setbit(bands, IEEE80211_MODE_11B); 3336 /* XXX-BZ unclear how to check for 11g. */ 3337 setbit(bands, IEEE80211_MODE_11G); 3338 #ifdef __notyet__ 3339 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3340 setbit(bands, IEEE80211_MODE_11NG); 3341 chan_flags |= NET80211_CBW_FLAG_HT40; 3342 } 3343 #endif 3344 3345 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3346 for (i = 0; i < nchans && *n < maxchan; i++) { 3347 uint32_t nflags = 0; 3348 int cflags = chan_flags; 3349 3350 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3351 ic_printf(ic, "%s: Skipping disabled chan " 3352 "[%u/%u/%#x]\n", __func__, 3353 channels[i].hw_value, 3354 channels[i].center_freq, channels[i].flags); 3355 continue; 3356 } 3357 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3358 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3359 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3360 nflags |= IEEE80211_CHAN_DFS; 3361 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3362 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3363 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3364 cflags &= ~NET80211_CBW_FLAG_VHT80; 3365 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3366 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3367 cflags &= ~NET80211_CBW_FLAG_HT40; 3368 3369 error = ieee80211_add_channel_cbw(c, maxchan, n, 3370 channels[i].hw_value, channels[i].center_freq, 3371 channels[i].max_power, 3372 nflags, bands, chan_flags); 3373 /* net80211::ENOBUFS: *n >= maxchans */ 3374 if (error != 0 && error != ENOBUFS) 3375 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3376 "returned error %d\n", 3377 __func__, channels[i].hw_value, 3378 channels[i].center_freq, channels[i].flags, 3379 nflags, chan_flags, cflags, error); 3380 if (error != 0) 3381 break; 3382 } 3383 } 3384 3385 /* NL80211_BAND_5GHZ */ 3386 nchans = 0; 3387 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3388 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3389 if (nchans > 0) { 3390 memset(bands, 0, sizeof(bands)); 3391 chan_flags = 0; 3392 setbit(bands, IEEE80211_MODE_11A); 3393 #ifdef __not_yet__ 3394 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3395 setbit(bands, IEEE80211_MODE_11NA); 3396 chan_flags |= NET80211_CBW_FLAG_HT40; 3397 } 3398 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3399 3400 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3401 ic->ic_vhtcaps = 3402 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3403 3404 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3405 chan_flags |= NET80211_CBW_FLAG_VHT80; 3406 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3407 ic->ic_vhtcaps)) 3408 chan_flags |= NET80211_CBW_FLAG_VHT160; 3409 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3410 ic->ic_vhtcaps)) 3411 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3412 } 3413 #endif 3414 3415 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3416 for (i = 0; i < nchans && *n < maxchan; i++) { 3417 uint32_t nflags = 0; 3418 int cflags = chan_flags; 3419 3420 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3421 ic_printf(ic, "%s: Skipping disabled chan " 3422 "[%u/%u/%#x]\n", __func__, 3423 channels[i].hw_value, 3424 channels[i].center_freq, channels[i].flags); 3425 continue; 3426 } 3427 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3428 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3429 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3430 nflags |= IEEE80211_CHAN_DFS; 3431 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3432 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3433 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3434 cflags &= ~NET80211_CBW_FLAG_VHT80; 3435 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3436 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3437 cflags &= ~NET80211_CBW_FLAG_HT40; 3438 3439 error = ieee80211_add_channel_cbw(c, maxchan, n, 3440 channels[i].hw_value, channels[i].center_freq, 3441 channels[i].max_power, 3442 nflags, bands, chan_flags); 3443 /* net80211::ENOBUFS: *n >= maxchans */ 3444 if (error != 0 && error != ENOBUFS) 3445 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3446 "returned error %d\n", 3447 __func__, channels[i].hw_value, 3448 channels[i].center_freq, channels[i].flags, 3449 nflags, chan_flags, cflags, error); 3450 if (error != 0) 3451 break; 3452 } 3453 } 3454 } 3455 3456 static void * 3457 lkpi_ieee80211_ifalloc(void) 3458 { 3459 struct ieee80211com *ic; 3460 3461 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3462 if (ic == NULL) 3463 return (NULL); 3464 3465 /* Setting these happens later when we have device information. */ 3466 ic->ic_softc = NULL; 3467 ic->ic_name = "linuxkpi"; 3468 3469 return (ic); 3470 } 3471 3472 struct ieee80211_hw * 3473 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3474 { 3475 struct ieee80211_hw *hw; 3476 struct lkpi_hw *lhw; 3477 struct wiphy *wiphy; 3478 3479 /* Get us and the driver data also allocated. */ 3480 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3481 if (wiphy == NULL) 3482 return (NULL); 3483 3484 lhw = wiphy_priv(wiphy); 3485 lhw->ops = ops; 3486 3487 LKPI_80211_LHW_LOCK_INIT(lhw); 3488 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 3489 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3490 TAILQ_INIT(&lhw->lvif_head); 3491 3492 /* 3493 * XXX-BZ TODO make sure there is a "_null" function to all ops 3494 * not initialized. 3495 */ 3496 hw = LHW_TO_HW(lhw); 3497 hw->wiphy = wiphy; 3498 hw->conf.flags |= IEEE80211_CONF_IDLE; 3499 hw->priv = (void *)(lhw + 1); 3500 3501 /* BSD Specific. */ 3502 lhw->ic = lkpi_ieee80211_ifalloc(); 3503 if (lhw->ic == NULL) { 3504 ieee80211_free_hw(hw); 3505 return (NULL); 3506 } 3507 3508 IMPROVE(); 3509 3510 return (hw); 3511 } 3512 3513 void 3514 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3515 { 3516 struct lkpi_hw *lhw; 3517 3518 lhw = HW_TO_LHW(hw); 3519 free(lhw->ic, M_LKPI80211); 3520 lhw->ic = NULL; 3521 3522 /* Cleanup more of lhw here or in wiphy_free()? */ 3523 sx_destroy(&lhw->lvif_sx); 3524 LKPI_80211_LHW_LOCK_DESTROY(lhw); 3525 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 3526 IMPROVE(); 3527 } 3528 3529 void 3530 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3531 { 3532 struct lkpi_hw *lhw; 3533 struct ieee80211com *ic; 3534 3535 lhw = HW_TO_LHW(hw); 3536 ic = lhw->ic; 3537 3538 /* Now set a proper name before ieee80211_ifattach(). */ 3539 ic->ic_softc = lhw; 3540 ic->ic_name = name; 3541 3542 /* XXX-BZ do we also need to set wiphy name? */ 3543 } 3544 3545 struct ieee80211_hw * 3546 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3547 { 3548 struct lkpi_hw *lhw; 3549 3550 lhw = wiphy_priv(wiphy); 3551 return (LHW_TO_HW(lhw)); 3552 } 3553 3554 static void 3555 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3556 { 3557 struct ieee80211com *ic; 3558 3559 ic = lhw->ic; 3560 ieee80211_radiotap_attach(ic, 3561 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3562 LKPI_RTAP_TX_FLAGS_PRESENT, 3563 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3564 LKPI_RTAP_RX_FLAGS_PRESENT); 3565 } 3566 3567 int 3568 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3569 { 3570 struct ieee80211com *ic; 3571 struct lkpi_hw *lhw; 3572 int band, i; 3573 3574 lhw = HW_TO_LHW(hw); 3575 ic = lhw->ic; 3576 3577 /* We do it this late as wiphy->dev should be set for the name. */ 3578 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3579 if (lhw->workq == NULL) 3580 return (-EAGAIN); 3581 3582 /* XXX-BZ figure this out how they count his... */ 3583 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3584 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3585 hw->wiphy->perm_addr); 3586 } else if (hw->wiphy->n_addresses > 0) { 3587 /* We take the first one. */ 3588 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3589 hw->wiphy->addresses[0].addr); 3590 } else { 3591 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3592 } 3593 3594 #ifdef __not_yet__ 3595 /* See comment in lkpi_80211_txq_tx_one(). */ 3596 ic->ic_headroom = hw->extra_tx_headroom; 3597 #endif 3598 3599 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3600 ic->ic_opmode = IEEE80211_M_STA; 3601 3602 /* Set device capabilities. */ 3603 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3604 ic->ic_caps = 3605 IEEE80211_C_STA | 3606 IEEE80211_C_MONITOR | 3607 IEEE80211_C_WPA | /* WPA/RSN */ 3608 #ifdef LKPI_80211_WME 3609 IEEE80211_C_WME | 3610 #endif 3611 #if 0 3612 IEEE80211_C_PMGT | 3613 #endif 3614 IEEE80211_C_SHSLOT | /* short slot time supported */ 3615 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3616 ; 3617 #if 0 3618 /* Scanning is a different kind of beast to re-work. */ 3619 ic->ic_caps |= IEEE80211_C_BGSCAN; 3620 #endif 3621 if (lhw->ops->hw_scan) { 3622 /* 3623 * Advertise full-offload scanning. 3624 * 3625 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3626 * we essentially disable hw_scan for all drivers not setting 3627 * the flag. 3628 */ 3629 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3630 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 3631 } 3632 3633 #ifdef __notyet__ 3634 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3635 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3636 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3637 | IEEE80211_HTCAP_MAXAMSDU_3839 3638 /* max A-MSDU length */ 3639 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3640 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3641 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3642 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3643 #endif 3644 3645 /* 3646 * The wiphy variables report bitmasks of avail antennas. 3647 * (*get_antenna) get the current bitmask sets which can be 3648 * altered by (*set_antenna) for some drivers. 3649 * XXX-BZ will the count alone do us much good long-term in net80211? 3650 */ 3651 if (hw->wiphy->available_antennas_rx || 3652 hw->wiphy->available_antennas_tx) { 3653 uint32_t rxs, txs; 3654 3655 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 3656 ic->ic_rxstream = bitcount32(rxs); 3657 ic->ic_txstream = bitcount32(txs); 3658 } 3659 } 3660 3661 ic->ic_cryptocaps = 0; 3662 #ifdef LKPI_80211_HW_CRYPTO 3663 if (hw->wiphy->n_cipher_suites > 0) { 3664 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3665 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3666 hw->wiphy->cipher_suites[i]); 3667 } 3668 #endif 3669 3670 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3671 ic->ic_channels); 3672 3673 ieee80211_ifattach(ic); 3674 3675 ic->ic_update_mcast = lkpi_ic_update_mcast; 3676 ic->ic_update_promisc = lkpi_ic_update_promisc; 3677 ic->ic_update_chw = lkpi_ic_update_chw; 3678 ic->ic_parent = lkpi_ic_parent; 3679 ic->ic_scan_start = lkpi_ic_scan_start; 3680 ic->ic_scan_end = lkpi_ic_scan_end; 3681 ic->ic_set_channel = lkpi_ic_set_channel; 3682 ic->ic_transmit = lkpi_ic_transmit; 3683 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3684 ic->ic_vap_create = lkpi_ic_vap_create; 3685 ic->ic_vap_delete = lkpi_ic_vap_delete; 3686 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3687 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3688 3689 lhw->ic_scan_curchan = ic->ic_scan_curchan; 3690 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 3691 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 3692 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 3693 3694 lhw->ic_node_alloc = ic->ic_node_alloc; 3695 ic->ic_node_alloc = lkpi_ic_node_alloc; 3696 lhw->ic_node_init = ic->ic_node_init; 3697 ic->ic_node_init = lkpi_ic_node_init; 3698 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3699 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3700 lhw->ic_node_free = ic->ic_node_free; 3701 ic->ic_node_free = lkpi_ic_node_free; 3702 3703 lkpi_radiotap_attach(lhw); 3704 3705 /* 3706 * Assign the first possible channel for now; seems Realtek drivers 3707 * expect one. 3708 * Also remember the amount of bands we support and the most rates 3709 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3710 */ 3711 lhw->supbands = lhw->max_rates = 0; 3712 for (band = 0; band < NUM_NL80211_BANDS && 3713 hw->conf.chandef.chan == NULL; band++) { 3714 struct ieee80211_supported_band *supband; 3715 struct linuxkpi_ieee80211_channel *channels; 3716 3717 supband = hw->wiphy->bands[band]; 3718 if (supband == NULL || supband->n_channels == 0) 3719 continue; 3720 3721 lhw->supbands++; 3722 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3723 3724 channels = supband->channels; 3725 for (i = 0; i < supband->n_channels; i++) { 3726 3727 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3728 continue; 3729 3730 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3731 NL80211_CHAN_NO_HT); 3732 break; 3733 } 3734 } 3735 3736 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3737 3738 /* Make sure we do not support more than net80211 is willing to take. */ 3739 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3740 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3741 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3742 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3743 } 3744 3745 /* 3746 * The maximum supported bitrates on any band + size for 3747 * DSSS Parameter Set give our per-band IE size. 3748 * XXX-BZ FIXME add HT VHT ... later 3749 * SSID is the responsibility of the driver and goes on the side. 3750 * The user specified bits coming from the vap go into the 3751 * "common ies" fields. 3752 */ 3753 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3754 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3755 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3756 /* 3757 * net80211 does not seem to support the DSSS Parameter Set but some of 3758 * the drivers insert it so calculate the extra fixed space in. 3759 */ 3760 lhw->scan_ie_len += 2 + 1; 3761 3762 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3763 if (hw->wiphy->max_scan_ie_len > 0) 3764 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3765 3766 if (bootverbose) 3767 ieee80211_announce(ic); 3768 3769 return (0); 3770 } 3771 3772 void 3773 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3774 { 3775 struct lkpi_hw *lhw; 3776 struct ieee80211com *ic; 3777 3778 lhw = HW_TO_LHW(hw); 3779 ic = lhw->ic; 3780 ieee80211_ifdetach(ic); 3781 } 3782 3783 void 3784 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3785 enum ieee80211_iface_iter flags, 3786 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3787 void *arg) 3788 { 3789 struct lkpi_hw *lhw; 3790 struct lkpi_vif *lvif; 3791 struct ieee80211_vif *vif; 3792 bool active, atomic, nin_drv; 3793 3794 lhw = HW_TO_LHW(hw); 3795 3796 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3797 IEEE80211_IFACE_ITER_RESUME_ALL| 3798 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3799 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3800 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3801 __func__, flags); 3802 } 3803 3804 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3805 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3806 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3807 3808 if (atomic) 3809 LKPI_80211_LHW_LVIF_LOCK(lhw); 3810 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3811 struct ieee80211vap *vap; 3812 3813 vif = LVIF_TO_VIF(lvif); 3814 3815 /* 3816 * If we want "active" interfaces, we need to distinguish on 3817 * whether the driver knows about them or not to be able to 3818 * handle the "resume" case correctly. Skip the ones the 3819 * driver does not know about. 3820 */ 3821 if (active && !lvif->added_to_drv && 3822 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3823 continue; 3824 3825 /* 3826 * If we shall skip interfaces not added to the driver do so 3827 * if we haven't yet. 3828 */ 3829 if (nin_drv && !lvif->added_to_drv) 3830 continue; 3831 3832 /* 3833 * Run the iterator function if we are either not asking 3834 * asking for active only or if the VAP is "running". 3835 */ 3836 /* XXX-BZ probably should have state in the lvif as well. */ 3837 vap = LVIF_TO_VAP(lvif); 3838 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3839 iterfunc(arg, vif->addr, vif); 3840 } 3841 if (atomic) 3842 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3843 } 3844 3845 void 3846 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3847 struct ieee80211_vif *vif, 3848 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3849 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3850 void *arg) 3851 { 3852 3853 UNIMPLEMENTED; 3854 } 3855 3856 void 3857 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3858 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3859 void *), 3860 void *arg) 3861 { 3862 3863 UNIMPLEMENTED; 3864 } 3865 3866 void 3867 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3868 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3869 { 3870 struct lkpi_hw *lhw; 3871 struct lkpi_vif *lvif; 3872 struct lkpi_sta *lsta; 3873 struct ieee80211_sta *sta; 3874 3875 KASSERT(hw != NULL && iterfunc != NULL, 3876 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3877 3878 lhw = HW_TO_LHW(hw); 3879 3880 LKPI_80211_LHW_LVIF_LOCK(lhw); 3881 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3882 3883 LKPI_80211_LVIF_LOCK(lvif); 3884 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3885 if (!lsta->added_to_drv) 3886 continue; 3887 sta = LSTA_TO_STA(lsta); 3888 iterfunc(arg, sta); 3889 } 3890 LKPI_80211_LVIF_UNLOCK(lvif); 3891 } 3892 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3893 } 3894 3895 int 3896 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3897 struct linuxkpi_ieee80211_regdomain *regd) 3898 { 3899 struct lkpi_hw *lhw; 3900 struct ieee80211com *ic; 3901 struct ieee80211_regdomain *rd; 3902 3903 lhw = wiphy_priv(wiphy); 3904 ic = lhw->ic; 3905 3906 rd = &ic->ic_regdomain; 3907 if (rd->isocc[0] == '\0') { 3908 rd->isocc[0] = regd->alpha2[0]; 3909 rd->isocc[1] = regd->alpha2[1]; 3910 } 3911 3912 TODO(); 3913 /* XXX-BZ finish the rest. */ 3914 3915 return (0); 3916 } 3917 3918 void 3919 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3920 struct cfg80211_scan_info *info) 3921 { 3922 struct lkpi_hw *lhw; 3923 struct ieee80211com *ic; 3924 struct ieee80211_scan_state *ss; 3925 3926 lhw = wiphy_priv(hw->wiphy); 3927 ic = lhw->ic; 3928 ss = ic->ic_scan; 3929 3930 ieee80211_scan_done(ss->ss_vap); 3931 3932 LKPI_80211_LHW_SCAN_LOCK(lhw); 3933 free(lhw->hw_req, M_LKPI80211); 3934 lhw->hw_req = NULL; 3935 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3936 wakeup(lhw); 3937 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3938 3939 return; 3940 } 3941 3942 /* For %list see comment towards the end of the function. */ 3943 void 3944 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3945 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 3946 struct list_head *list __unused) 3947 { 3948 struct epoch_tracker et; 3949 struct lkpi_hw *lhw; 3950 struct ieee80211com *ic; 3951 struct mbuf *m; 3952 struct skb_shared_info *shinfo; 3953 struct ieee80211_rx_status *rx_status; 3954 struct ieee80211_rx_stats rx_stats; 3955 struct ieee80211_node *ni; 3956 struct ieee80211vap *vap; 3957 struct ieee80211_hdr *hdr; 3958 struct lkpi_sta *lsta; 3959 int i, offset, ok; 3960 int8_t rssi; 3961 bool is_beacon; 3962 3963 if (skb->len < 2) { 3964 /* Need 80211 stats here. */ 3965 IMPROVE(); 3966 goto err; 3967 } 3968 3969 /* 3970 * For now do the data copy; we can later improve things. Might even 3971 * have an mbuf backing the skb data then? 3972 */ 3973 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3974 if (m == NULL) 3975 goto err; 3976 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3977 3978 shinfo = skb_shinfo(skb); 3979 offset = m->m_len; 3980 for (i = 0; i < shinfo->nr_frags; i++) { 3981 m_copyback(m, offset, shinfo->frags[i].size, 3982 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3983 shinfo->frags[i].offset); 3984 offset += shinfo->frags[i].size; 3985 } 3986 3987 rx_status = IEEE80211_SKB_RXCB(skb); 3988 3989 hdr = (void *)skb->data; 3990 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3991 3992 #ifdef LINUXKPI_DEBUG_80211 3993 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3994 goto no_trace_beacons; 3995 3996 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3997 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3998 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3999 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4000 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4001 shinfo, shinfo->nr_frags, 4002 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4003 4004 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4005 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4006 4007 /* Implement a dump_rxcb() !!! */ 4008 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4009 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4010 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4011 __func__, 4012 (uintmax_t)rx_status->boottime_ns, 4013 (uintmax_t)rx_status->mactime, 4014 rx_status->device_timestamp, 4015 rx_status->flag, 4016 rx_status->freq, 4017 rx_status->bw, 4018 rx_status->encoding, 4019 rx_status->ampdu_reference, 4020 rx_status->band, 4021 rx_status->chains, 4022 rx_status->chain_signal[0], 4023 rx_status->chain_signal[1], 4024 rx_status->chain_signal[2], 4025 rx_status->chain_signal[3], 4026 rx_status->signal, 4027 rx_status->enc_flags, 4028 rx_status->he_dcm, 4029 rx_status->he_gi, 4030 rx_status->he_ru, 4031 rx_status->zero_length_psdu_type, 4032 rx_status->nss, 4033 rx_status->rate_idx); 4034 no_trace_beacons: 4035 #endif 4036 4037 memset(&rx_stats, 0, sizeof(rx_stats)); 4038 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 4039 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 4040 rx_stats.c_nf = -96; 4041 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 4042 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 4043 rssi = rx_status->signal; 4044 else 4045 rssi = rx_stats.c_nf; 4046 /* 4047 * net80211 signal strength data are in .5 dBm units relative to 4048 * the current noise floor (see comment in ieee80211_node.h). 4049 */ 4050 rssi -= rx_stats.c_nf; 4051 rx_stats.c_rssi = rssi * 2; 4052 rx_stats.r_flags |= IEEE80211_R_BAND; 4053 rx_stats.c_band = 4054 lkpi_nl80211_band_to_net80211_band(rx_status->band); 4055 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 4056 rx_stats.c_freq = rx_status->freq; 4057 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 4058 4059 /* XXX (*sta_statistics)() to get to some of that? */ 4060 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 4061 4062 lhw = HW_TO_LHW(hw); 4063 ic = lhw->ic; 4064 4065 ok = ieee80211_add_rx_params(m, &rx_stats); 4066 if (ok == 0) { 4067 m_freem(m); 4068 counter_u64_add(ic->ic_ierrors, 1); 4069 goto err; 4070 } 4071 4072 if (sta != NULL) { 4073 lsta = STA_TO_LSTA(sta); 4074 ni = ieee80211_ref_node(lsta->ni); 4075 } else { 4076 struct ieee80211_frame_min *wh; 4077 4078 wh = mtod(m, struct ieee80211_frame_min *); 4079 ni = ieee80211_find_rxnode(ic, wh); 4080 if (ni != NULL) 4081 lsta = ni->ni_drv_data; 4082 } 4083 4084 if (ni != NULL) 4085 vap = ni->ni_vap; 4086 else 4087 /* 4088 * XXX-BZ can we improve this by looking at the frame hdr 4089 * or other meta-data passed up? 4090 */ 4091 vap = TAILQ_FIRST(&ic->ic_vaps); 4092 4093 #ifdef LINUXKPI_DEBUG_80211 4094 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4095 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 4096 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 4097 ni, vap, is_beacon ? " beacon" : ""); 4098 #endif 4099 4100 if (ni != NULL && vap != NULL && is_beacon && 4101 rx_status->device_timestamp > 0 && 4102 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 4103 struct lkpi_vif *lvif; 4104 struct ieee80211_vif *vif; 4105 struct ieee80211_frame *wh; 4106 4107 wh = mtod(m, struct ieee80211_frame *); 4108 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 4109 goto skip_device_ts; 4110 4111 lvif = VAP_TO_LVIF(vap); 4112 vif = LVIF_TO_VIF(lvif); 4113 4114 IMPROVE("TIMING_BEACON_ONLY?"); 4115 /* mac80211 specific (not net80211) so keep it here. */ 4116 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 4117 /* 4118 * net80211 should take care of the other information (sync_tsf, 4119 * sync_dtim_count) as otherwise we need to parse the beacon. 4120 */ 4121 } 4122 skip_device_ts: 4123 4124 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 4125 ieee80211_radiotap_active_vap(vap)) { 4126 struct lkpi_radiotap_rx_hdr *rtap; 4127 4128 rtap = &lhw->rtap_rx; 4129 rtap->wr_tsft = rx_status->device_timestamp; 4130 rtap->wr_flags = 0; 4131 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 4132 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 4133 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 4134 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 4135 #if 0 /* .. or it does not given we strip it below. */ 4136 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4137 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 4138 #endif 4139 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 4140 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 4141 rtap->wr_rate = 0; 4142 IMPROVE(); 4143 /* XXX TODO status->encoding / rate_index / bw */ 4144 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4145 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4146 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4147 rtap->wr_dbm_antsignal = rssi; 4148 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4149 } 4150 4151 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4152 m_adj(m, -IEEE80211_CRC_LEN); 4153 4154 #if 0 4155 if (list != NULL) { 4156 /* 4157 * Normally this would be queued up and delivered by 4158 * netif_receive_skb_list(), napi_gro_receive(), or the like. 4159 * See mt76::mac80211.c as only current possible consumer. 4160 */ 4161 IMPROVE("we simply pass the packet to net80211 to deal with."); 4162 } 4163 #endif 4164 4165 NET_EPOCH_ENTER(et); 4166 if (ni != NULL) { 4167 ok = ieee80211_input_mimo(ni, m); 4168 ieee80211_free_node(ni); 4169 if (ok < 0) 4170 m_freem(m); 4171 } else { 4172 ok = ieee80211_input_mimo_all(ic, m); 4173 /* mbuf got consumed. */ 4174 } 4175 NET_EPOCH_EXIT(et); 4176 4177 #ifdef LINUXKPI_DEBUG_80211 4178 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4179 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4180 #endif 4181 4182 IMPROVE(); 4183 4184 err: 4185 /* The skb is ours so we can free it :-) */ 4186 kfree_skb(skb); 4187 } 4188 4189 uint8_t 4190 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4191 { 4192 const struct ieee80211_frame *wh; 4193 uint8_t tid; 4194 4195 /* Linux seems to assume this is a QOS-Data-Frame */ 4196 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4197 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4198 hdr->frame_control)); 4199 4200 wh = (const struct ieee80211_frame *)hdr; 4201 tid = ieee80211_gettid(wh); 4202 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4203 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4204 4205 return (tid); 4206 } 4207 4208 struct wiphy * 4209 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4210 { 4211 struct lkpi_wiphy *lwiphy; 4212 4213 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4214 if (lwiphy == NULL) 4215 return (NULL); 4216 lwiphy->ops = ops; 4217 4218 /* XXX TODO */ 4219 return (LWIPHY_TO_WIPHY(lwiphy)); 4220 } 4221 4222 void 4223 linuxkpi_wiphy_free(struct wiphy *wiphy) 4224 { 4225 struct lkpi_wiphy *lwiphy; 4226 4227 if (wiphy == NULL) 4228 return; 4229 4230 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4231 kfree(lwiphy); 4232 } 4233 4234 uint32_t 4235 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4236 enum nl80211_band band) 4237 { 4238 4239 switch (band) { 4240 case NL80211_BAND_2GHZ: 4241 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4242 break; 4243 case NL80211_BAND_5GHZ: 4244 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4245 break; 4246 default: 4247 /* XXX abort, retry, error, panic? */ 4248 break; 4249 } 4250 4251 return (0); 4252 } 4253 4254 uint32_t 4255 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4256 { 4257 4258 return (ieee80211_mhz2ieee(freq, 0)); 4259 } 4260 4261 static struct lkpi_sta * 4262 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4263 { 4264 struct lkpi_sta *lsta, *temp; 4265 4266 LKPI_80211_LVIF_LOCK(lvif); 4267 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4268 if (lsta->ni == ni) { 4269 LKPI_80211_LVIF_UNLOCK(lvif); 4270 return (lsta); 4271 } 4272 } 4273 LKPI_80211_LVIF_UNLOCK(lvif); 4274 4275 return (NULL); 4276 } 4277 4278 struct ieee80211_sta * 4279 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4280 { 4281 struct lkpi_vif *lvif; 4282 struct lkpi_sta *lsta, *temp; 4283 struct ieee80211_sta *sta; 4284 4285 lvif = VIF_TO_LVIF(vif); 4286 4287 LKPI_80211_LVIF_LOCK(lvif); 4288 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4289 sta = LSTA_TO_STA(lsta); 4290 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4291 LKPI_80211_LVIF_UNLOCK(lvif); 4292 return (sta); 4293 } 4294 } 4295 LKPI_80211_LVIF_UNLOCK(lvif); 4296 return (NULL); 4297 } 4298 4299 struct ieee80211_sta * 4300 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4301 const uint8_t *addr, const uint8_t *ourvifaddr) 4302 { 4303 struct lkpi_hw *lhw; 4304 struct lkpi_vif *lvif; 4305 struct lkpi_sta *lsta; 4306 struct ieee80211_vif *vif; 4307 struct ieee80211_sta *sta; 4308 4309 lhw = wiphy_priv(hw->wiphy); 4310 sta = NULL; 4311 4312 LKPI_80211_LHW_LVIF_LOCK(lhw); 4313 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4314 4315 /* XXX-BZ check our address from the vif. */ 4316 4317 vif = LVIF_TO_VIF(lvif); 4318 if (ourvifaddr != NULL && 4319 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4320 continue; 4321 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4322 if (sta != NULL) 4323 break; 4324 } 4325 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4326 4327 if (sta != NULL) { 4328 lsta = STA_TO_LSTA(sta); 4329 if (!lsta->added_to_drv) 4330 return (NULL); 4331 } 4332 4333 return (sta); 4334 } 4335 4336 struct sk_buff * 4337 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4338 struct ieee80211_txq *txq) 4339 { 4340 struct lkpi_txq *ltxq; 4341 struct lkpi_vif *lvif; 4342 struct sk_buff *skb; 4343 4344 skb = NULL; 4345 ltxq = TXQ_TO_LTXQ(txq); 4346 ltxq->seen_dequeue = true; 4347 4348 if (ltxq->stopped) 4349 goto stopped; 4350 4351 lvif = VIF_TO_LVIF(ltxq->txq.vif); 4352 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 4353 ltxq->stopped = true; 4354 goto stopped; 4355 } 4356 4357 skb = skb_dequeue(<xq->skbq); 4358 4359 stopped: 4360 return (skb); 4361 } 4362 4363 void 4364 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4365 unsigned long *frame_cnt, unsigned long *byte_cnt) 4366 { 4367 struct lkpi_txq *ltxq; 4368 struct sk_buff *skb; 4369 unsigned long fc, bc; 4370 4371 ltxq = TXQ_TO_LTXQ(txq); 4372 4373 fc = bc = 0; 4374 skb_queue_walk(<xq->skbq, skb) { 4375 fc++; 4376 bc += skb->len; 4377 } 4378 if (frame_cnt) 4379 *frame_cnt = fc; 4380 if (byte_cnt) 4381 *byte_cnt = bc; 4382 4383 /* Validate that this is doing the correct thing. */ 4384 /* Should we keep track on en/dequeue? */ 4385 IMPROVE(); 4386 } 4387 4388 /* 4389 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4390 * The latter tries to derive the success status from the info flags 4391 * passed back from the driver. rawx_mit() saves the ni on the m and the 4392 * m on the skb for us to be able to give feedback to net80211. 4393 */ 4394 static void 4395 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4396 int status) 4397 { 4398 struct ieee80211_node *ni; 4399 struct mbuf *m; 4400 4401 m = skb->m; 4402 skb->m = NULL; 4403 4404 if (m != NULL) { 4405 ni = m->m_pkthdr.PH_loc.ptr; 4406 /* Status: 0 is ok, != 0 is error. */ 4407 ieee80211_tx_complete(ni, m, status); 4408 /* ni & mbuf were consumed. */ 4409 } 4410 } 4411 4412 void 4413 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4414 int status) 4415 { 4416 4417 _lkpi_ieee80211_free_txskb(hw, skb, status); 4418 kfree_skb(skb); 4419 } 4420 4421 void 4422 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 4423 struct ieee80211_tx_status *txstat) 4424 { 4425 struct sk_buff *skb; 4426 struct ieee80211_tx_info *info; 4427 struct ieee80211_ratectl_tx_status txs; 4428 struct ieee80211_node *ni; 4429 int status; 4430 4431 skb = txstat->skb; 4432 if (skb->m != NULL) { 4433 struct mbuf *m; 4434 4435 m = skb->m; 4436 ni = m->m_pkthdr.PH_loc.ptr; 4437 memset(&txs, 0, sizeof(txs)); 4438 } else { 4439 ni = NULL; 4440 } 4441 4442 info = txstat->info; 4443 if (info->flags & IEEE80211_TX_STAT_ACK) { 4444 status = 0; /* No error. */ 4445 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4446 } else { 4447 status = 1; 4448 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4449 } 4450 4451 if (ni != NULL) { 4452 int ridx __unused; 4453 #ifdef LINUXKPI_DEBUG_80211 4454 int old_rate; 4455 4456 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4457 #endif 4458 txs.pktlen = skb->len; 4459 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4460 if (info->status.rates[0].count > 1) { 4461 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4462 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4463 } 4464 #if 0 /* Unused in net80211 currently. */ 4465 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 4466 txs.final_rate = info->status.rates[0].idx; 4467 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4468 #endif 4469 if (info->status.is_valid_ack_signal) { 4470 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4471 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4472 } 4473 4474 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4475 ieee80211_ratectl_tx_complete(ni, &txs); 4476 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4477 4478 #ifdef LINUXKPI_DEBUG_80211 4479 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4480 printf("TX-RATE: %s: old %d new %d ridx %d, " 4481 "long_retries %d\n", __func__, 4482 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4483 ridx, txs.long_retries); 4484 } 4485 #endif 4486 } 4487 4488 #ifdef LINUXKPI_DEBUG_80211 4489 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4490 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4491 "band %u hw_queue %u tx_time_est %d : " 4492 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4493 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4494 "tx_time %u is_valid_ack_signal %u " 4495 "status_driver_data [ %p %p ]\n", 4496 __func__, hw, skb, status, info->flags, 4497 info->band, info->hw_queue, info->tx_time_est, 4498 info->status.rates[0].idx, info->status.rates[0].count, 4499 info->status.rates[0].flags, 4500 info->status.rates[1].idx, info->status.rates[1].count, 4501 info->status.rates[1].flags, 4502 info->status.rates[2].idx, info->status.rates[2].count, 4503 info->status.rates[2].flags, 4504 info->status.rates[3].idx, info->status.rates[3].count, 4505 info->status.rates[3].flags, 4506 info->status.ack_signal, info->status.ampdu_ack_len, 4507 info->status.ampdu_len, info->status.antenna, 4508 info->status.tx_time, info->status.is_valid_ack_signal, 4509 info->status.status_driver_data[0], 4510 info->status.status_driver_data[1]); 4511 #endif 4512 4513 if (txstat->free_list) { 4514 _lkpi_ieee80211_free_txskb(hw, skb, status); 4515 list_add_tail(&skb->list, txstat->free_list); 4516 } else { 4517 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4518 } 4519 } 4520 4521 void 4522 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4523 { 4524 struct ieee80211_tx_status status; 4525 4526 memset(&status, 0, sizeof(status)); 4527 status.info = IEEE80211_SKB_CB(skb); 4528 status.skb = skb; 4529 /* sta, n_rates, rates, free_list? */ 4530 4531 ieee80211_tx_status_ext(hw, &status); 4532 } 4533 4534 /* 4535 * This is an internal bandaid for the moment for the way we glue 4536 * skbs and mbufs together for TX. Once we have skbs backed by 4537 * mbufs this should go away. 4538 * This is a public function but kept on the private KPI (lkpi_) 4539 * and is not exposed by a header file. 4540 */ 4541 static void 4542 lkpi_ieee80211_free_skb_mbuf(void *p) 4543 { 4544 struct ieee80211_node *ni; 4545 struct mbuf *m; 4546 4547 if (p == NULL) 4548 return; 4549 4550 m = (struct mbuf *)p; 4551 M_ASSERTPKTHDR(m); 4552 4553 ni = m->m_pkthdr.PH_loc.ptr; 4554 m->m_pkthdr.PH_loc.ptr = NULL; 4555 if (ni != NULL) 4556 ieee80211_free_node(ni); 4557 m_freem(m); 4558 } 4559 4560 void 4561 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4562 struct delayed_work *w, int delay) 4563 { 4564 struct lkpi_hw *lhw; 4565 4566 /* Need to make sure hw is in a stable (non-suspended) state. */ 4567 IMPROVE(); 4568 4569 lhw = HW_TO_LHW(hw); 4570 queue_delayed_work(lhw->workq, w, delay); 4571 } 4572 4573 void 4574 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4575 struct work_struct *w) 4576 { 4577 struct lkpi_hw *lhw; 4578 4579 /* Need to make sure hw is in a stable (non-suspended) state. */ 4580 IMPROVE(); 4581 4582 lhw = HW_TO_LHW(hw); 4583 queue_work(lhw->workq, w); 4584 } 4585 4586 struct sk_buff * 4587 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4588 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4589 { 4590 struct sk_buff *skb; 4591 struct ieee80211_frame *wh; 4592 uint8_t *p; 4593 size_t len; 4594 4595 len = sizeof(*wh); 4596 len += 2 + ssid_len; 4597 4598 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4599 if (skb == NULL) 4600 return (NULL); 4601 4602 skb_reserve(skb, hw->extra_tx_headroom); 4603 4604 wh = skb_put_zero(skb, sizeof(*wh)); 4605 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4606 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4607 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4608 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4609 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4610 4611 p = skb_put(skb, 2 + ssid_len); 4612 *p++ = IEEE80211_ELEMID_SSID; 4613 *p++ = ssid_len; 4614 if (ssid_len > 0) 4615 memcpy(p, ssid, ssid_len); 4616 4617 return (skb); 4618 } 4619 4620 struct sk_buff * 4621 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4622 struct ieee80211_vif *vif) 4623 { 4624 struct lkpi_vif *lvif; 4625 struct ieee80211vap *vap; 4626 struct sk_buff *skb; 4627 struct ieee80211_frame_pspoll *psp; 4628 uint16_t v; 4629 4630 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4631 if (skb == NULL) 4632 return (NULL); 4633 4634 skb_reserve(skb, hw->extra_tx_headroom); 4635 4636 lvif = VIF_TO_LVIF(vif); 4637 vap = LVIF_TO_VAP(lvif); 4638 4639 psp = skb_put_zero(skb, sizeof(*psp)); 4640 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4641 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4642 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4643 memcpy(&psp->i_aid, &v, sizeof(v)); 4644 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4645 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4646 4647 return (skb); 4648 } 4649 4650 struct sk_buff * 4651 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4652 struct ieee80211_vif *vif, bool qos) 4653 { 4654 struct lkpi_vif *lvif; 4655 struct ieee80211vap *vap; 4656 struct sk_buff *skb; 4657 struct ieee80211_frame *nullf; 4658 4659 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4660 if (skb == NULL) 4661 return (NULL); 4662 4663 skb_reserve(skb, hw->extra_tx_headroom); 4664 4665 lvif = VIF_TO_LVIF(vif); 4666 vap = LVIF_TO_VAP(lvif); 4667 4668 nullf = skb_put_zero(skb, sizeof(*nullf)); 4669 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4670 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4671 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4672 4673 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4674 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4675 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4676 4677 return (skb); 4678 } 4679 4680 struct wireless_dev * 4681 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4682 { 4683 struct lkpi_vif *lvif; 4684 4685 lvif = VIF_TO_LVIF(vif); 4686 return (&lvif->wdev); 4687 } 4688 4689 void 4690 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4691 { 4692 struct lkpi_vif *lvif; 4693 struct ieee80211vap *vap; 4694 enum ieee80211_state nstate; 4695 int arg; 4696 4697 lvif = VIF_TO_LVIF(vif); 4698 vap = LVIF_TO_VAP(lvif); 4699 4700 /* 4701 * Go to init; otherwise we need to elaborately check state and 4702 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4703 * Let the statemachine handle all neccessary changes. 4704 */ 4705 nstate = IEEE80211_S_INIT; 4706 arg = 0; /* Not a valid reason. */ 4707 4708 #ifdef LINUXKPI_DEBUG_80211 4709 if (linuxkpi_debug_80211 & D80211_TRACE) 4710 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4711 #endif 4712 ieee80211_new_state(vap, nstate, arg); 4713 } 4714 4715 void 4716 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4717 { 4718 struct lkpi_vif *lvif; 4719 struct ieee80211vap *vap; 4720 4721 lvif = VIF_TO_LVIF(vif); 4722 vap = LVIF_TO_VAP(lvif); 4723 4724 #ifdef LINUXKPI_DEBUG_80211 4725 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4726 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4727 vif, vap, ieee80211_state_name[vap->iv_state]); 4728 #endif 4729 ieee80211_beacon_miss(vap->iv_ic); 4730 } 4731 4732 /* -------------------------------------------------------------------------- */ 4733 4734 void 4735 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 4736 { 4737 struct lkpi_hw *lhw; 4738 struct lkpi_vif *lvif; 4739 struct ieee80211_vif *vif; 4740 int ac_count, ac; 4741 4742 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 4743 __func__, qnum, hw->queues, hw)); 4744 4745 lhw = wiphy_priv(hw->wiphy); 4746 4747 /* See lkpi_ic_vap_create(). */ 4748 if (hw->queues >= IEEE80211_NUM_ACS) 4749 ac_count = IEEE80211_NUM_ACS; 4750 else 4751 ac_count = 1; 4752 4753 LKPI_80211_LHW_LVIF_LOCK(lhw); 4754 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4755 4756 vif = LVIF_TO_VIF(lvif); 4757 for (ac = 0; ac < ac_count; ac++) { 4758 IMPROVE_TXQ("LOCKING"); 4759 if (qnum == vif->hw_queue[ac]) { 4760 /* 4761 * For now log this to better understand 4762 * how this is supposed to work. 4763 */ 4764 if (lvif->hw_queue_stopped[ac]) 4765 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4766 "lvif %p vif %p ac %d qnum %d already " 4767 "stopped\n", __func__, __LINE__, 4768 lhw, hw, lvif, vif, ac, qnum); 4769 lvif->hw_queue_stopped[ac] = true; 4770 } 4771 } 4772 } 4773 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4774 } 4775 4776 void 4777 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 4778 { 4779 int i; 4780 4781 IMPROVE_TXQ("Locking; do we need further info?"); 4782 for (i = 0; i < hw->queues; i++) 4783 linuxkpi_ieee80211_stop_queue(hw, i); 4784 } 4785 4786 4787 static void 4788 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 4789 { 4790 struct lkpi_hw *lhw; 4791 struct lkpi_vif *lvif; 4792 struct lkpi_sta *lsta; 4793 int ac_count, ac, tid; 4794 4795 /* See lkpi_ic_vap_create(). */ 4796 if (hw->queues >= IEEE80211_NUM_ACS) 4797 ac_count = IEEE80211_NUM_ACS; 4798 else 4799 ac_count = 1; 4800 4801 lhw = wiphy_priv(hw->wiphy); 4802 4803 IMPROVE_TXQ("Locking"); 4804 LKPI_80211_LHW_LVIF_LOCK(lhw); 4805 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4806 struct ieee80211_vif *vif; 4807 4808 vif = LVIF_TO_VIF(lvif); 4809 for (ac = 0; ac < ac_count; ac++) { 4810 4811 if (hwq == vif->hw_queue[ac]) { 4812 4813 /* XXX-BZ what about software scan? */ 4814 4815 /* 4816 * For now log this to better understand 4817 * how this is supposed to work. 4818 */ 4819 if (!lvif->hw_queue_stopped[ac]) 4820 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4821 "lvif %p vif %p ac %d hw_q not stopped\n", 4822 __func__, __LINE__, 4823 lhw, hw, lvif, vif, ac); 4824 lvif->hw_queue_stopped[ac] = false; 4825 4826 LKPI_80211_LVIF_LOCK(lvif); 4827 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4828 struct ieee80211_sta *sta; 4829 4830 sta = LSTA_TO_STA(lsta); 4831 for (tid = 0; tid < nitems(sta->txq); tid++) { 4832 struct lkpi_txq *ltxq; 4833 4834 if (sta->txq[tid] == NULL) 4835 continue; 4836 4837 if (sta->txq[tid]->ac != ac) 4838 continue; 4839 4840 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 4841 if (!ltxq->stopped) 4842 continue; 4843 4844 ltxq->stopped = false; 4845 4846 /* XXX-BZ see when this explodes with all the locking. taskq? */ 4847 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 4848 } 4849 } 4850 LKPI_80211_LVIF_UNLOCK(lvif); 4851 } 4852 } 4853 } 4854 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4855 } 4856 4857 void 4858 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 4859 { 4860 int i; 4861 4862 IMPROVE_TXQ("Is this all/enough here?"); 4863 for (i = 0; i < hw->queues; i++) 4864 lkpi_ieee80211_wake_queues(hw, i); 4865 } 4866 4867 void 4868 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 4869 { 4870 4871 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 4872 __func__, qnum, hw->queues, hw)); 4873 4874 lkpi_ieee80211_wake_queues(hw, qnum); 4875 } 4876 4877 /* This is just hardware queues. */ 4878 void 4879 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 4880 { 4881 struct lkpi_hw *lhw; 4882 4883 lhw = HW_TO_LHW(hw); 4884 4885 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 4886 IMPROVE_TXQ("LOCKING"); 4887 if (++lhw->txq_generation[ac] == 0) 4888 lhw->txq_generation[ac]++; 4889 } 4890 4891 struct ieee80211_txq * 4892 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 4893 { 4894 struct lkpi_hw *lhw; 4895 struct ieee80211_txq *txq; 4896 struct lkpi_txq *ltxq; 4897 4898 lhw = HW_TO_LHW(hw); 4899 txq = NULL; 4900 4901 IMPROVE_TXQ("LOCKING"); 4902 4903 /* Check that we are scheduled. */ 4904 if (lhw->txq_generation[ac] == 0) 4905 goto out; 4906 4907 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 4908 if (ltxq == NULL) 4909 goto out; 4910 if (ltxq->txq_generation == lhw->txq_generation[ac]) 4911 goto out; 4912 4913 ltxq->txq_generation = lhw->txq_generation[ac]; 4914 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 4915 txq = <xq->txq; 4916 TAILQ_ELEM_INIT(ltxq, txq_entry); 4917 4918 out: 4919 return (txq); 4920 } 4921 4922 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 4923 struct ieee80211_txq *txq, bool withoutpkts) 4924 { 4925 struct lkpi_hw *lhw; 4926 struct lkpi_txq *ltxq; 4927 4928 ltxq = TXQ_TO_LTXQ(txq); 4929 4930 IMPROVE_TXQ("LOCKING"); 4931 4932 /* Only schedule if work to do or asked to anyway. */ 4933 if (!withoutpkts && skb_queue_empty(<xq->skbq)) 4934 goto out; 4935 4936 /* Make sure we do not double-schedule. */ 4937 if (ltxq->txq_entry.tqe_next != NULL) 4938 goto out; 4939 4940 lhw = HW_TO_LHW(hw); 4941 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 4942 out: 4943 return; 4944 } 4945 4946 /* -------------------------------------------------------------------------- */ 4947 4948 struct lkpi_cfg80211_bss { 4949 u_int refcnt; 4950 struct cfg80211_bss bss; 4951 }; 4952 4953 struct lkpi_cfg80211_get_bss_iter_lookup { 4954 struct wiphy *wiphy; 4955 struct linuxkpi_ieee80211_channel *chan; 4956 const uint8_t *bssid; 4957 const uint8_t *ssid; 4958 size_t ssid_len; 4959 enum ieee80211_bss_type bss_type; 4960 enum ieee80211_privacy privacy; 4961 4962 /* 4963 * Something to store a copy of the result as the net80211 scan cache 4964 * is not refoucnted so a scan entry might go away any time. 4965 */ 4966 bool match; 4967 struct cfg80211_bss *bss; 4968 }; 4969 4970 static void 4971 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 4972 { 4973 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 4974 size_t ielen; 4975 4976 lookup = arg; 4977 4978 /* Do not try to find another match. */ 4979 if (lookup->match) 4980 return; 4981 4982 /* Nothing to store result. */ 4983 if (lookup->bss == NULL) 4984 return; 4985 4986 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 4987 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 4988 /* We have no idea what to compare to as the drivers only request ANY */ 4989 return; 4990 } 4991 4992 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 4993 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 4994 /* We have no idea what to compare to as the drivers only request ANY */ 4995 return; 4996 } 4997 4998 if (lookup->chan != NULL) { 4999 struct linuxkpi_ieee80211_channel *chan; 5000 5001 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 5002 se->se_chan->ic_freq); 5003 if (chan == NULL || chan != lookup->chan) 5004 return; 5005 } 5006 5007 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 5008 return; 5009 5010 if (lookup->ssid) { 5011 if (lookup->ssid_len != se->se_ssid[1] || 5012 se->se_ssid[1] == 0) 5013 return; 5014 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 5015 return; 5016 } 5017 5018 ielen = se->se_ies.len; 5019 5020 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 5021 M_LKPI80211, M_NOWAIT | M_ZERO); 5022 if (lookup->bss->ies == NULL) 5023 return; 5024 5025 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 5026 lookup->bss->ies->len = ielen; 5027 if (ielen) 5028 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 5029 5030 lookup->match = true; 5031 } 5032 5033 struct cfg80211_bss * 5034 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 5035 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 5036 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 5037 { 5038 struct lkpi_cfg80211_bss *lbss; 5039 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 5040 struct lkpi_hw *lhw; 5041 struct ieee80211vap *vap; 5042 5043 lhw = wiphy_priv(wiphy); 5044 5045 /* Let's hope we can alloc. */ 5046 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 5047 if (lbss == NULL) { 5048 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 5049 return (NULL); 5050 } 5051 5052 lookup.wiphy = wiphy; 5053 lookup.chan = chan; 5054 lookup.bssid = bssid; 5055 lookup.ssid = ssid; 5056 lookup.ssid_len = ssid_len; 5057 lookup.bss_type = bss_type; 5058 lookup.privacy = privacy; 5059 lookup.match = false; 5060 lookup.bss = &lbss->bss; 5061 5062 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 5063 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 5064 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 5065 if (!lookup.match) { 5066 free(lbss, M_LKPI80211); 5067 return (NULL); 5068 } 5069 5070 refcount_init(&lbss->refcnt, 1); 5071 return (&lbss->bss); 5072 } 5073 5074 void 5075 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 5076 { 5077 struct lkpi_cfg80211_bss *lbss; 5078 5079 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 5080 5081 /* Free everything again on refcount ... */ 5082 if (refcount_release(&lbss->refcnt)) { 5083 free(lbss->bss.ies, M_LKPI80211); 5084 free(lbss, M_LKPI80211); 5085 } 5086 } 5087 5088 void 5089 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 5090 { 5091 struct lkpi_hw *lhw; 5092 struct ieee80211com *ic; 5093 struct ieee80211vap *vap; 5094 5095 lhw = wiphy_priv(wiphy); 5096 ic = lhw->ic; 5097 5098 /* 5099 * If we haven't called ieee80211_ifattach() yet 5100 * or there is no VAP, there are no scans to flush. 5101 */ 5102 if (ic == NULL || 5103 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 5104 return; 5105 5106 /* Should only happen on the current one? Not seen it late enough. */ 5107 IEEE80211_LOCK(ic); 5108 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 5109 ieee80211_scan_flush(vap); 5110 IEEE80211_UNLOCK(ic); 5111 } 5112 5113 /* -------------------------------------------------------------------------- */ 5114 5115 MODULE_VERSION(linuxkpi_wlan, 1); 5116 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 5117 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 5118