1 /*- 2 * Copyright (c) 2020-2023 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/cdefs.h> 43 #include <sys/param.h> 44 #include <sys/types.h> 45 #include <sys/kernel.h> 46 #include <sys/errno.h> 47 #include <sys/malloc.h> 48 #include <sys/module.h> 49 #include <sys/mutex.h> 50 #include <sys/socket.h> 51 #include <sys/sysctl.h> 52 #include <sys/queue.h> 53 #include <sys/taskqueue.h> 54 #include <sys/libkern.h> 55 56 #include <net/if.h> 57 #include <net/if_var.h> 58 #include <net/if_media.h> 59 #include <net/ethernet.h> 60 61 #include <net80211/ieee80211_var.h> 62 #include <net80211/ieee80211_proto.h> 63 #include <net80211/ieee80211_ratectl.h> 64 #include <net80211/ieee80211_radiotap.h> 65 66 #define LINUXKPI_NET80211 67 #include <net/mac80211.h> 68 69 #include <linux/workqueue.h> 70 #include "linux_80211.h" 71 72 #define LKPI_80211_WME 73 /* #define LKPI_80211_HW_CRYPTO */ 74 75 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "LinuxKPI 80211 compat"); 76 77 /* XXX-BZ really want this and others in queue.h */ 78 #define TAILQ_ELEM_INIT(elm, field) do { \ 79 (elm)->field.tqe_next = NULL; \ 80 (elm)->field.tqe_prev = NULL; \ 81 } while (0) 82 83 /* -------------------------------------------------------------------------- */ 84 85 /* Keep public for as long as header files are using it too. */ 86 int linuxkpi_debug_80211; 87 88 #ifdef LINUXKPI_DEBUG_80211 89 SYSCTL_DECL(_compat_linuxkpi); 90 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 91 "LinuxKPI 802.11 compatibility layer"); 92 93 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 94 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 95 96 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 97 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 98 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 99 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 100 #else 101 #define UNIMPLEMENTED do { } while (0) 102 #define TRACEOK() do { } while (0) 103 #endif 104 105 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 106 #ifndef PREP_TX_INFO_DURATION 107 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 108 #endif 109 110 /* c.f. ieee80211_ioctl.c */ 111 static const uint8_t zerobssid[IEEE80211_ADDR_LEN]; 112 113 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 114 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 115 116 /* IEEE 802.11-05/0257r1 */ 117 const uint8_t bridge_tunnel_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; 118 119 const uint8_t tid_to_mac80211_ac[] = { 120 IEEE80211_AC_BE, 121 IEEE80211_AC_BK, 122 IEEE80211_AC_BK, 123 IEEE80211_AC_BE, 124 IEEE80211_AC_VI, 125 IEEE80211_AC_VI, 126 IEEE80211_AC_VO, 127 IEEE80211_AC_VO, 128 #if 0 129 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 130 #endif 131 }; 132 133 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 134 /* 135 * XXX TODO need a "glue layer" to link cfg80211 ops to 136 * mac80211 and to the driver or net80211. 137 * Can we pass some on 1:1? Need to compare the (*f)(). 138 */ 139 }; 140 141 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 142 struct ieee80211_node *); 143 static void lkpi_80211_txq_task(void *, int); 144 static void lkpi_ieee80211_free_skb_mbuf(void *); 145 #ifdef LKPI_80211_WME 146 static int lkpi_wme_update(struct lkpi_hw *, struct ieee80211vap *, bool); 147 #endif 148 149 static void 150 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 151 const char *_f, int _l) 152 { 153 154 #ifdef LINUXKPI_DEBUG_80211 155 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 156 return; 157 if (lsta == NULL) 158 return; 159 160 printf("%s:%d lsta %p ni %p sta %p\n", 161 _f, _l, lsta, ni, &lsta->sta); 162 if (ni != NULL) 163 ieee80211_dump_node(NULL, ni); 164 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 165 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 166 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 167 #endif 168 } 169 170 static void 171 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 172 { 173 struct ieee80211_node *ni; 174 175 IMPROVE("XXX-BZ remove tqe_prev check once ni-sta-state-sync is fixed"); 176 177 ni = lsta->ni; 178 179 LKPI_80211_LVIF_LOCK(lvif); 180 if (lsta->lsta_entry.tqe_prev != NULL) 181 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 182 LKPI_80211_LVIF_UNLOCK(lvif); 183 184 lsta->ni = NULL; 185 ni->ni_drv_data = NULL; 186 if (ni != NULL) 187 ieee80211_free_node(ni); 188 189 IMPROVE("more from lkpi_ic_node_free() should happen here."); 190 191 free(lsta, M_LKPI80211); 192 } 193 194 static struct lkpi_sta * 195 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 196 struct ieee80211_hw *hw, struct ieee80211_node *ni) 197 { 198 struct lkpi_sta *lsta; 199 struct lkpi_vif *lvif; 200 struct ieee80211_vif *vif; 201 struct ieee80211_sta *sta; 202 int band, i, tid; 203 204 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 205 M_NOWAIT | M_ZERO); 206 if (lsta == NULL) 207 return (NULL); 208 209 lsta->added_to_drv = false; 210 lsta->state = IEEE80211_STA_NOTEXIST; 211 #if 0 212 /* 213 * This needs to be done in node_init() as ieee80211_alloc_node() 214 * will initialise the refcount after us. 215 */ 216 lsta->ni = ieee80211_ref_node(ni); 217 #endif 218 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 219 ni->ni_drv_data = lsta; 220 221 lvif = VAP_TO_LVIF(vap); 222 vif = LVIF_TO_VIF(lvif); 223 sta = LSTA_TO_STA(lsta); 224 225 IEEE80211_ADDR_COPY(sta->addr, mac); 226 227 /* TXQ */ 228 for (tid = 0; tid < nitems(sta->txq); tid++) { 229 struct lkpi_txq *ltxq; 230 231 /* We are not limiting ourselves to hw.queues here. */ 232 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 233 M_LKPI80211, M_NOWAIT | M_ZERO); 234 if (ltxq == NULL) 235 goto cleanup; 236 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 237 if (tid == IEEE80211_NUM_TIDS) { 238 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 239 free(ltxq, M_LKPI80211); 240 continue; 241 } 242 IMPROVE("AP/if we support non-STA here too"); 243 ltxq->txq.ac = IEEE80211_AC_VO; 244 } else { 245 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 246 } 247 ltxq->seen_dequeue = false; 248 ltxq->stopped = false; 249 ltxq->txq.vif = vif; 250 ltxq->txq.tid = tid; 251 ltxq->txq.sta = sta; 252 TAILQ_ELEM_INIT(ltxq, txq_entry); 253 skb_queue_head_init(<xq->skbq); 254 sta->txq[tid] = <xq->txq; 255 } 256 257 /* Deflink information. */ 258 for (band = 0; band < NUM_NL80211_BANDS; band++) { 259 struct ieee80211_supported_band *supband; 260 261 supband = hw->wiphy->bands[band]; 262 if (supband == NULL) 263 continue; 264 265 for (i = 0; i < supband->n_bitrates; i++) { 266 267 IMPROVE("Further supband->bitrates[i]* checks?"); 268 /* or should we get them from the ni? */ 269 sta->deflink.supp_rates[band] |= BIT(i); 270 } 271 } 272 IMPROVE("ht, vht, he, ... bandwidth, smps_mode, .."); 273 /* bandwidth = IEEE80211_STA_RX_... */ 274 275 /* Deferred TX path. */ 276 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 277 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 278 mbufq_init(&lsta->txq, IFQ_MAXLEN); 279 280 return (lsta); 281 282 cleanup: 283 for (; tid >= 0; tid--) 284 free(sta->txq[tid], M_LKPI80211); 285 free(lsta, M_LKPI80211); 286 return (NULL); 287 } 288 289 static enum nl80211_band 290 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 291 { 292 293 if (IEEE80211_IS_CHAN_2GHZ(c)) 294 return (NL80211_BAND_2GHZ); 295 else if (IEEE80211_IS_CHAN_5GHZ(c)) 296 return (NL80211_BAND_5GHZ); 297 #ifdef __notyet__ 298 else if () 299 return (NL80211_BAND_6GHZ); 300 else if () 301 return (NL80211_BAND_60GHZ); 302 else if (IEEE80211_IS_CHAN_GSM(c)) 303 return (NL80211_BAND_XXX); 304 #endif 305 else 306 panic("%s: unsupported band. c %p flags %#x\n", 307 __func__, c, c->ic_flags); 308 } 309 310 static uint32_t 311 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 312 { 313 314 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 315 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 316 switch (band) { 317 case NL80211_BAND_2GHZ: 318 return (IEEE80211_CHAN_2GHZ); 319 break; 320 case NL80211_BAND_5GHZ: 321 return (IEEE80211_CHAN_5GHZ); 322 break; 323 case NL80211_BAND_60GHZ: 324 break; 325 case NL80211_BAND_6GHZ: 326 break; 327 default: 328 panic("%s: unsupported band %u\n", __func__, band); 329 break; 330 } 331 332 IMPROVE(); 333 return (0x00); 334 } 335 336 #if 0 337 static enum ieee80211_ac_numbers 338 lkpi_ac_net_to_l80211(int ac) 339 { 340 341 switch (ac) { 342 case WME_AC_VO: 343 return (IEEE80211_AC_VO); 344 case WME_AC_VI: 345 return (IEEE80211_AC_VI); 346 case WME_AC_BE: 347 return (IEEE80211_AC_BE); 348 case WME_AC_BK: 349 return (IEEE80211_AC_BK); 350 default: 351 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 352 return (IEEE80211_AC_BE); 353 } 354 } 355 #endif 356 357 static enum nl80211_iftype 358 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 359 { 360 361 switch (opmode) { 362 case IEEE80211_M_IBSS: 363 return (NL80211_IFTYPE_ADHOC); 364 break; 365 case IEEE80211_M_STA: 366 return (NL80211_IFTYPE_STATION); 367 break; 368 case IEEE80211_M_WDS: 369 return (NL80211_IFTYPE_WDS); 370 break; 371 case IEEE80211_M_HOSTAP: 372 return (NL80211_IFTYPE_AP); 373 break; 374 case IEEE80211_M_MONITOR: 375 return (NL80211_IFTYPE_MONITOR); 376 break; 377 case IEEE80211_M_MBSS: 378 return (NL80211_IFTYPE_MESH_POINT); 379 break; 380 case IEEE80211_M_AHDEMO: 381 /* FALLTHROUGH */ 382 default: 383 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 384 /* FALLTHROUGH */ 385 } 386 return (NL80211_IFTYPE_UNSPECIFIED); 387 } 388 389 #ifdef LKPI_80211_HW_CRYPTO 390 static uint32_t 391 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 392 { 393 394 switch (wlan_cipher_suite) { 395 case WLAN_CIPHER_SUITE_WEP40: 396 return (IEEE80211_CRYPTO_WEP); 397 case WLAN_CIPHER_SUITE_TKIP: 398 return (IEEE80211_CRYPTO_TKIP); 399 case WLAN_CIPHER_SUITE_CCMP: 400 return (IEEE80211_CIPHER_AES_CCM); 401 case WLAN_CIPHER_SUITE_WEP104: 402 return (IEEE80211_CRYPTO_WEP); 403 case WLAN_CIPHER_SUITE_AES_CMAC: 404 case WLAN_CIPHER_SUITE_GCMP: 405 case WLAN_CIPHER_SUITE_GCMP_256: 406 case WLAN_CIPHER_SUITE_CCMP_256: 407 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 408 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 409 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 410 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 411 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 412 break; 413 default: 414 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 415 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 416 } 417 418 return (0); 419 } 420 421 static uint32_t 422 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 423 { 424 425 switch (cipher) { 426 case IEEE80211_CIPHER_TKIP: 427 return (WLAN_CIPHER_SUITE_TKIP); 428 case IEEE80211_CIPHER_AES_CCM: 429 return (WLAN_CIPHER_SUITE_CCMP); 430 case IEEE80211_CIPHER_WEP: 431 if (keylen < 8) 432 return (WLAN_CIPHER_SUITE_WEP40); 433 else 434 return (WLAN_CIPHER_SUITE_WEP104); 435 break; 436 case IEEE80211_CIPHER_AES_OCB: 437 case IEEE80211_CIPHER_TKIPMIC: 438 case IEEE80211_CIPHER_CKIP: 439 case IEEE80211_CIPHER_NONE: 440 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 441 break; 442 default: 443 printf("%s: unknown cipher %#010x\n", __func__, cipher); 444 }; 445 return (0); 446 } 447 #endif 448 449 #ifdef __notyet__ 450 static enum ieee80211_sta_state 451 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 452 { 453 454 /* 455 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 456 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 457 */ 458 switch (state) { 459 case IEEE80211_S_INIT: 460 return (IEEE80211_STA_NOTEXIST); 461 case IEEE80211_S_SCAN: 462 return (IEEE80211_STA_NONE); 463 case IEEE80211_S_AUTH: 464 return (IEEE80211_STA_AUTH); 465 case IEEE80211_S_ASSOC: 466 return (IEEE80211_STA_ASSOC); 467 case IEEE80211_S_RUN: 468 return (IEEE80211_STA_AUTHORIZED); 469 case IEEE80211_S_CAC: 470 case IEEE80211_S_CSA: 471 case IEEE80211_S_SLEEP: 472 default: 473 UNIMPLEMENTED; 474 }; 475 476 return (IEEE80211_STA_NOTEXIST); 477 } 478 #endif 479 480 static struct linuxkpi_ieee80211_channel * 481 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 482 struct ieee80211_channel *c) 483 { 484 struct ieee80211_hw *hw; 485 struct linuxkpi_ieee80211_channel *channels; 486 enum nl80211_band band; 487 int i, nchans; 488 489 hw = LHW_TO_HW(lhw); 490 band = lkpi_net80211_chan_to_nl80211_band(c); 491 if (hw->wiphy->bands[band] == NULL) 492 return (NULL); 493 494 nchans = hw->wiphy->bands[band]->n_channels; 495 if (nchans <= 0) 496 return (NULL); 497 498 channels = hw->wiphy->bands[band]->channels; 499 for (i = 0; i < nchans; i++) { 500 if (channels[i].hw_value == c->ic_ieee) 501 return (&channels[i]); 502 } 503 504 return (NULL); 505 } 506 507 static struct linuxkpi_ieee80211_channel * 508 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 509 { 510 struct linuxkpi_ieee80211_channel *chan; 511 struct ieee80211_channel *c; 512 struct lkpi_hw *lhw; 513 514 chan = NULL; 515 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 516 c = ni->ni_chan; 517 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 518 c = ic->ic_bsschan; 519 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 520 c = ic->ic_curchan; 521 else 522 c = NULL; 523 524 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 525 lhw = ic->ic_softc; 526 chan = lkpi_find_lkpi80211_chan(lhw, c); 527 } 528 529 return (chan); 530 } 531 532 struct linuxkpi_ieee80211_channel * 533 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 534 { 535 enum nl80211_band band; 536 537 for (band = 0; band < NUM_NL80211_BANDS; band++) { 538 struct ieee80211_supported_band *supband; 539 struct linuxkpi_ieee80211_channel *channels; 540 int i; 541 542 supband = wiphy->bands[band]; 543 if (supband == NULL || supband->n_channels == 0) 544 continue; 545 546 channels = supband->channels; 547 for (i = 0; i < supband->n_channels; i++) { 548 if (channels[i].center_freq == freq) 549 return (&channels[i]); 550 } 551 } 552 553 return (NULL); 554 } 555 556 #ifdef LKPI_80211_HW_CRYPTO 557 static int 558 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 559 enum set_key_cmd cmd) 560 { 561 struct ieee80211com *ic; 562 struct lkpi_hw *lhw; 563 struct ieee80211_hw *hw; 564 struct lkpi_vif *lvif; 565 struct ieee80211_vif *vif; 566 struct ieee80211_sta *sta; 567 struct ieee80211_node *ni; 568 struct ieee80211_key_conf *kc; 569 int error; 570 571 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 572 573 ic = vap->iv_ic; 574 lhw = ic->ic_softc; 575 hw = LHW_TO_HW(lhw); 576 lvif = VAP_TO_LVIF(vap); 577 vif = LVIF_TO_VIF(lvif); 578 579 memset(&kc, 0, sizeof(kc)); 580 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 581 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 582 k->wk_cipher->ic_cipher, k->wk_keylen); 583 kc->keyidx = k->wk_keyix; 584 #if 0 585 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 586 #endif 587 atomic64_set(&kc->tx_pn, k->wk_keytsc); 588 kc->keylen = k->wk_keylen; 589 memcpy(kc->key, k->wk_key, k->wk_keylen); 590 591 switch (kc->cipher) { 592 case WLAN_CIPHER_SUITE_CCMP: 593 kc->iv_len = k->wk_cipher->ic_header; 594 kc->icv_len = k->wk_cipher->ic_trailer; 595 break; 596 case WLAN_CIPHER_SUITE_TKIP: 597 default: 598 IMPROVE(); 599 return (0); 600 }; 601 602 ni = vap->iv_bss; 603 sta = ieee80211_find_sta(vif, ni->ni_bssid); 604 if (sta != NULL) { 605 struct lkpi_sta *lsta; 606 607 lsta = STA_TO_LSTA(sta); 608 lsta->kc = kc; 609 } 610 611 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 612 if (error != 0) { 613 /* XXX-BZ leaking kc currently */ 614 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 615 return (0); 616 } else { 617 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 618 "flags %#10x\n", __func__, 619 kc->keyidx, kc->hw_key_idx, kc->flags); 620 return (1); 621 } 622 } 623 624 static int 625 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 626 { 627 628 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 629 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 630 } 631 static int 632 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 633 { 634 635 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 636 } 637 #endif 638 639 static u_int 640 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 641 { 642 struct netdev_hw_addr_list *mc_list; 643 struct netdev_hw_addr *addr; 644 645 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 646 __func__, arg, sdl, cnt)); 647 648 mc_list = arg; 649 /* If it is on the list already skip it. */ 650 netdev_hw_addr_list_for_each(addr, mc_list) { 651 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 652 return (0); 653 } 654 655 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 656 if (addr == NULL) 657 return (0); 658 659 INIT_LIST_HEAD(&addr->addr_list); 660 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 661 /* XXX this should be a netdev function? */ 662 list_add(&addr->addr_list, &mc_list->addr_list); 663 mc_list->count++; 664 665 #ifdef LINUXKPI_DEBUG_80211 666 if (linuxkpi_debug_80211 & D80211_TRACE) 667 printf("%s:%d: mc_list count %d: added %6D\n", 668 __func__, __LINE__, mc_list->count, addr->addr, ":"); 669 #endif 670 671 return (1); 672 } 673 674 static void 675 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 676 { 677 struct lkpi_hw *lhw; 678 struct ieee80211_hw *hw; 679 struct netdev_hw_addr_list mc_list; 680 struct list_head *le, *next; 681 struct netdev_hw_addr *addr; 682 struct ieee80211vap *vap; 683 u64 mc; 684 unsigned int changed_flags, total_flags; 685 686 lhw = ic->ic_softc; 687 688 if (lhw->ops->prepare_multicast == NULL || 689 lhw->ops->configure_filter == NULL) 690 return; 691 692 if (!lhw->update_mc && !force) 693 return; 694 695 changed_flags = total_flags = 0; 696 mc_list.count = 0; 697 INIT_LIST_HEAD(&mc_list.addr_list); 698 if (ic->ic_allmulti == 0) { 699 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 700 if_foreach_llmaddr(vap->iv_ifp, 701 lkpi_ic_update_mcast_copy, &mc_list); 702 } else { 703 changed_flags |= FIF_ALLMULTI; 704 } 705 706 hw = LHW_TO_HW(lhw); 707 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 708 /* 709 * XXX-BZ make sure to get this sorted what is a change, 710 * what gets all set; what was already set? 711 */ 712 total_flags = changed_flags; 713 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 714 715 #ifdef LINUXKPI_DEBUG_80211 716 if (linuxkpi_debug_80211 & D80211_TRACE) 717 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 718 __func__, changed_flags, mc_list.count, total_flags); 719 #endif 720 721 if (mc_list.count != 0) { 722 list_for_each_safe(le, next, &mc_list.addr_list) { 723 addr = list_entry(le, struct netdev_hw_addr, addr_list); 724 free(addr, M_LKPI80211); 725 mc_list.count--; 726 } 727 } 728 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 729 __func__, &mc_list, mc_list.count)); 730 } 731 732 static enum ieee80211_bss_changed 733 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 734 struct ieee80211vap *vap, const char *_f, int _l) 735 { 736 enum ieee80211_bss_changed bss_changed; 737 738 bss_changed = 0; 739 740 #ifdef LINUXKPI_DEBUG_80211 741 if (linuxkpi_debug_80211 & D80211_TRACE) 742 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 743 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 744 "sync_device_ts %u bss_changed %#08x\n", 745 __func__, __LINE__, _f, _l, 746 vif->bss_conf.assoc, vif->bss_conf.aid, 747 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 748 vif->bss_conf.sync_dtim_count, 749 (uintmax_t)vif->bss_conf.sync_tsf, 750 vif->bss_conf.sync_device_ts, 751 bss_changed); 752 #endif 753 754 if (vif->bss_conf.beacon_int != ni->ni_intval) { 755 vif->bss_conf.beacon_int = ni->ni_intval; 756 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 757 if (vif->bss_conf.beacon_int < 16) 758 vif->bss_conf.beacon_int = 16; 759 bss_changed |= BSS_CHANGED_BEACON_INT; 760 } 761 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 762 vap->iv_dtim_period > 0) { 763 vif->bss_conf.dtim_period = vap->iv_dtim_period; 764 bss_changed |= BSS_CHANGED_BEACON_INFO; 765 } 766 767 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 768 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 769 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 770 771 #ifdef LINUXKPI_DEBUG_80211 772 if (linuxkpi_debug_80211 & D80211_TRACE) 773 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 774 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 775 "sync_device_ts %u bss_changed %#08x\n", 776 __func__, __LINE__, _f, _l, 777 vif->bss_conf.assoc, vif->bss_conf.aid, 778 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 779 vif->bss_conf.sync_dtim_count, 780 (uintmax_t)vif->bss_conf.sync_tsf, 781 vif->bss_conf.sync_device_ts, 782 bss_changed); 783 #endif 784 785 return (bss_changed); 786 } 787 788 static void 789 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 790 { 791 struct ieee80211_hw *hw; 792 int error; 793 bool cancel; 794 795 LKPI_80211_LHW_SCAN_LOCK(lhw); 796 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 797 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 798 if (!cancel) 799 return; 800 801 hw = LHW_TO_HW(lhw); 802 803 IEEE80211_UNLOCK(lhw->ic); 804 LKPI_80211_LHW_LOCK(lhw); 805 /* Need to cancel the scan. */ 806 lkpi_80211_mo_cancel_hw_scan(hw, vif); 807 LKPI_80211_LHW_UNLOCK(lhw); 808 809 /* Need to make sure we see ieee80211_scan_completed. */ 810 LKPI_80211_LHW_SCAN_LOCK(lhw); 811 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) 812 error = msleep(lhw, &lhw->scan_mtx, 0, "lhwscanstop", hz/2); 813 cancel = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 814 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 815 816 IEEE80211_LOCK(lhw->ic); 817 818 if (cancel) 819 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 820 __func__, error, lhw, vif); 821 } 822 823 static void 824 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 825 { 826 struct lkpi_hw *lhw; 827 int error; 828 bool old; 829 830 old = hw->conf.flags & IEEE80211_CONF_IDLE; 831 if (old == new) 832 return; 833 834 hw->conf.flags ^= IEEE80211_CONF_IDLE; 835 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 836 if (error != 0 && error != EOPNOTSUPP) { 837 lhw = HW_TO_LHW(hw); 838 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 839 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 840 } 841 } 842 843 static void 844 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 845 struct lkpi_hw *lhw) 846 { 847 sta->aid = 0; 848 if (vif->bss_conf.assoc) { 849 struct ieee80211_hw *hw; 850 enum ieee80211_bss_changed changed; 851 852 lhw->update_mc = true; 853 lkpi_update_mcast_filter(lhw->ic, true); 854 855 changed = 0; 856 vif->bss_conf.assoc = false; 857 vif->bss_conf.aid = 0; 858 changed |= BSS_CHANGED_ASSOC; 859 /* 860 * This will remove the sta from firmware for iwlwifi. 861 * So confusing that they use state and flags and ... ^%$%#%$^. 862 */ 863 IMPROVE(); 864 hw = LHW_TO_HW(lhw); 865 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 866 changed); 867 868 lkpi_hw_conf_idle(hw, true); 869 } 870 } 871 872 static void 873 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 874 bool dequeue_seen, bool no_emptyq) 875 { 876 struct lkpi_txq *ltxq; 877 int tid; 878 879 /* Wake up all queues to know they are allocated in the driver. */ 880 for (tid = 0; tid < nitems(sta->txq); tid++) { 881 882 if (tid == IEEE80211_NUM_TIDS) { 883 IMPROVE("station specific?"); 884 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 885 continue; 886 } else if (tid >= hw->queues) 887 continue; 888 889 if (sta->txq[tid] == NULL) 890 continue; 891 892 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 893 if (dequeue_seen && !ltxq->seen_dequeue) 894 continue; 895 896 if (no_emptyq && skb_queue_empty(<xq->skbq)) 897 continue; 898 899 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 900 } 901 } 902 903 /* -------------------------------------------------------------------------- */ 904 905 static int 906 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 907 { 908 909 return (0); 910 } 911 912 /* lkpi_iv_newstate() handles the stop scan case generally. */ 913 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 914 915 static int 916 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 917 { 918 struct linuxkpi_ieee80211_channel *chan; 919 struct ieee80211_chanctx_conf *conf; 920 struct lkpi_hw *lhw; 921 struct ieee80211_hw *hw; 922 struct lkpi_vif *lvif; 923 struct ieee80211_vif *vif; 924 struct ieee80211_node *ni; 925 struct lkpi_sta *lsta; 926 enum ieee80211_bss_changed bss_changed; 927 struct ieee80211_prep_tx_info prep_tx_info; 928 uint32_t changed; 929 int error; 930 931 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 932 if (chan == NULL) { 933 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 934 return (ESRCH); 935 } 936 937 lhw = vap->iv_ic->ic_softc; 938 hw = LHW_TO_HW(lhw); 939 lvif = VAP_TO_LVIF(vap); 940 vif = LVIF_TO_VIF(lvif); 941 942 ni = ieee80211_ref_node(vap->iv_bss); 943 944 IEEE80211_UNLOCK(vap->iv_ic); 945 LKPI_80211_LHW_LOCK(lhw); 946 947 /* Add chanctx (or if exists, change it). */ 948 if (vif->chanctx_conf != NULL) { 949 conf = vif->chanctx_conf; 950 IMPROVE("diff changes for changed, working on live copy, rcu"); 951 } else { 952 /* Keep separate alloc as in Linux this is rcu managed? */ 953 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 954 M_LKPI80211, M_WAITOK | M_ZERO); 955 } 956 957 conf->rx_chains_dynamic = 1; 958 conf->rx_chains_static = 1; 959 conf->radar_enabled = 960 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 961 conf->def.chan = chan; 962 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 963 conf->def.center_freq1 = chan->center_freq; 964 conf->def.center_freq2 = 0; 965 /* Responder ... */ 966 conf->min_def.chan = chan; 967 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 968 conf->min_def.center_freq1 = chan->center_freq; 969 conf->min_def.center_freq2 = 0; 970 IMPROVE("currently 20_NOHT only"); 971 972 error = 0; 973 if (vif->chanctx_conf != NULL) { 974 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 975 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 976 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 977 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 978 lkpi_80211_mo_change_chanctx(hw, conf, changed); 979 } else { 980 error = lkpi_80211_mo_add_chanctx(hw, conf); 981 if (error == 0 || error == EOPNOTSUPP) { 982 vif->bss_conf.chandef.chan = conf->def.chan; 983 vif->bss_conf.chandef.width = conf->def.width; 984 vif->bss_conf.chandef.center_freq1 = 985 conf->def.center_freq1; 986 vif->bss_conf.chandef.center_freq2 = 987 conf->def.center_freq2; 988 } else { 989 goto out; 990 } 991 /* Assign vif chanctx. */ 992 if (error == 0) 993 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 994 if (error == EOPNOTSUPP) 995 error = 0; 996 if (error != 0) { 997 lkpi_80211_mo_remove_chanctx(hw, conf); 998 free(conf, M_LKPI80211); 999 goto out; 1000 } 1001 } 1002 IMPROVE("update radiotap chan fields too"); 1003 1004 /* Set bss info (bss_info_changed). */ 1005 bss_changed = 0; 1006 vif->bss_conf.bssid = ni->ni_bssid; 1007 bss_changed |= BSS_CHANGED_BSSID; 1008 vif->bss_conf.txpower = ni->ni_txpower; 1009 bss_changed |= BSS_CHANGED_TXPOWER; 1010 vif->bss_conf.idle = false; 1011 bss_changed |= BSS_CHANGED_IDLE; 1012 1013 /* Should almost assert it is this. */ 1014 vif->bss_conf.assoc = false; 1015 vif->bss_conf.aid = 0; 1016 1017 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1018 1019 /* RATES */ 1020 IMPROVE("bss info: not all needs to come now and rates are missing"); 1021 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1022 1023 /* 1024 * This is a bandaid for now. If we went through (*iv_update_bss)() 1025 * and then removed the lsta we end up here without a lsta and have 1026 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 1027 * would normally do. 1028 * XXX-BZ I do not like this but currently we have no good way of 1029 * intercepting the bss swap and state changes and packets going out 1030 * workflow so live with this. It is a compat layer after all. 1031 */ 1032 if (ni->ni_drv_data == NULL) { 1033 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 1034 if (lsta == NULL) { 1035 error = ENOMEM; 1036 goto out; 1037 } 1038 lsta->ni = ieee80211_ref_node(ni); 1039 } else { 1040 lsta = ni->ni_drv_data; 1041 } 1042 1043 /* Insert the [l]sta into the list of known stations. */ 1044 LKPI_80211_LVIF_LOCK(lvif); 1045 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1046 LKPI_80211_LVIF_UNLOCK(lvif); 1047 1048 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1049 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1050 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1051 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1052 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1053 if (error != 0) { 1054 IMPROVE("do we need to undo the chan ctx?"); 1055 goto out; 1056 } 1057 #if 0 1058 lsta->added_to_drv = true; /* mo manages. */ 1059 #endif 1060 1061 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1062 1063 /* 1064 * Wakeup all queues now that sta is there so we have as much time to 1065 * possibly prepare the queue in the driver to be ready for the 1st 1066 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1067 * is no guarantee or way to check. 1068 * XXX-BZ and by now we know that this does not work on all drivers 1069 * for all queues. 1070 */ 1071 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), false, false); 1072 1073 /* Start mgd_prepare_tx. */ 1074 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1075 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1076 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1077 lsta->in_mgd = true; 1078 1079 /* 1080 * What is going to happen next: 1081 * - <twiddle> .. we should end up in "auth_to_assoc" 1082 * - event_callback 1083 * - update sta_state (NONE to AUTH) 1084 * - mgd_complete_tx 1085 * (ideally we'd do that on a callback for something else ...) 1086 */ 1087 1088 out: 1089 LKPI_80211_LHW_UNLOCK(lhw); 1090 IEEE80211_LOCK(vap->iv_ic); 1091 if (ni != NULL) 1092 ieee80211_free_node(ni); 1093 return (error); 1094 } 1095 1096 static int 1097 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1098 { 1099 struct lkpi_hw *lhw; 1100 struct ieee80211_hw *hw; 1101 struct lkpi_vif *lvif; 1102 struct ieee80211_vif *vif; 1103 struct ieee80211_node *ni; 1104 struct lkpi_sta *lsta; 1105 struct ieee80211_sta *sta; 1106 struct ieee80211_prep_tx_info prep_tx_info; 1107 int error; 1108 1109 lhw = vap->iv_ic->ic_softc; 1110 hw = LHW_TO_HW(lhw); 1111 lvif = VAP_TO_LVIF(vap); 1112 vif = LVIF_TO_VIF(lvif); 1113 1114 /* Keep ni around. */ 1115 ni = ieee80211_ref_node(vap->iv_bss); 1116 lsta = ni->ni_drv_data; 1117 sta = LSTA_TO_STA(lsta); 1118 1119 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1120 1121 IEEE80211_UNLOCK(vap->iv_ic); 1122 LKPI_80211_LHW_LOCK(lhw); 1123 1124 /* flush, drop. */ 1125 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1126 1127 /* Wake tx queues to get packet(s) out. */ 1128 lkpi_wake_tx_queues(hw, sta, true, true); 1129 1130 /* flush, no drop */ 1131 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1132 1133 /* End mgd_complete_tx. */ 1134 if (lsta->in_mgd) { 1135 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1136 prep_tx_info.success = false; 1137 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1138 lsta->in_mgd = false; 1139 } 1140 1141 /* sync_rx_queues */ 1142 lkpi_80211_mo_sync_rx_queues(hw); 1143 1144 /* sta_pre_rcu_remove */ 1145 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1146 1147 /* Take the station down. */ 1148 1149 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1150 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1151 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1152 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1153 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1154 if (error != 0) { 1155 IMPROVE("do we need to undo the chan ctx?"); 1156 goto out; 1157 } 1158 #if 0 1159 lsta->added_to_drv = false; /* mo manages. */ 1160 #endif 1161 1162 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1163 1164 lkpi_lsta_remove(lsta, lvif); 1165 1166 /* conf_tx */ 1167 1168 /* Take the chan ctx down. */ 1169 if (vif->chanctx_conf != NULL) { 1170 struct ieee80211_chanctx_conf *conf; 1171 1172 conf = vif->chanctx_conf; 1173 /* Remove vif context. */ 1174 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1175 /* NB: vif->chanctx_conf is NULL now. */ 1176 1177 /* Remove chan ctx. */ 1178 lkpi_80211_mo_remove_chanctx(hw, conf); 1179 free(conf, M_LKPI80211); 1180 } 1181 1182 out: 1183 LKPI_80211_LHW_UNLOCK(lhw); 1184 IEEE80211_LOCK(vap->iv_ic); 1185 if (ni != NULL) 1186 ieee80211_free_node(ni); 1187 return (error); 1188 } 1189 1190 static int 1191 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1192 { 1193 int error; 1194 1195 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1196 if (error == 0) 1197 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1198 return (error); 1199 } 1200 1201 static int 1202 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1203 { 1204 struct lkpi_hw *lhw; 1205 struct ieee80211_hw *hw; 1206 struct lkpi_vif *lvif; 1207 struct ieee80211_vif *vif; 1208 struct ieee80211_node *ni; 1209 struct lkpi_sta *lsta; 1210 struct ieee80211_prep_tx_info prep_tx_info; 1211 int error; 1212 1213 lhw = vap->iv_ic->ic_softc; 1214 hw = LHW_TO_HW(lhw); 1215 lvif = VAP_TO_LVIF(vap); 1216 vif = LVIF_TO_VIF(lvif); 1217 1218 IEEE80211_UNLOCK(vap->iv_ic); 1219 LKPI_80211_LHW_LOCK(lhw); 1220 ni = NULL; 1221 1222 /* Finish auth. */ 1223 IMPROVE("event callback"); 1224 1225 /* Update sta_state (NONE to AUTH). */ 1226 ni = ieee80211_ref_node(vap->iv_bss); 1227 lsta = ni->ni_drv_data; 1228 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1229 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1230 "NONE: %#x\n", __func__, lsta, lsta->state)); 1231 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1232 if (error != 0) 1233 goto out; 1234 1235 /* End mgd_complete_tx. */ 1236 if (lsta->in_mgd) { 1237 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1238 prep_tx_info.success = true; 1239 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1240 lsta->in_mgd = false; 1241 } 1242 1243 /* Now start assoc. */ 1244 1245 /* Start mgd_prepare_tx. */ 1246 if (!lsta->in_mgd) { 1247 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1248 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1249 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1250 lsta->in_mgd = true; 1251 } 1252 1253 /* Wake tx queue to get packet out. */ 1254 lkpi_wake_tx_queues(hw, LSTA_TO_STA(lsta), true, true); 1255 1256 /* 1257 * <twiddle> .. we end up in "assoc_to_run" 1258 * - update sta_state (AUTH to ASSOC) 1259 * - conf_tx [all] 1260 * - bss_info_changed (assoc, aid, ssid, ..) 1261 * - change_chanctx (if needed) 1262 * - event_callback 1263 * - mgd_complete_tx 1264 */ 1265 1266 out: 1267 LKPI_80211_LHW_UNLOCK(lhw); 1268 IEEE80211_LOCK(vap->iv_ic); 1269 if (ni != NULL) 1270 ieee80211_free_node(ni); 1271 return (error); 1272 } 1273 1274 /* auth_to_auth, assoc_to_assoc. */ 1275 static int 1276 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1277 { 1278 struct lkpi_hw *lhw; 1279 struct ieee80211_hw *hw; 1280 struct lkpi_vif *lvif; 1281 struct ieee80211_vif *vif; 1282 struct ieee80211_node *ni; 1283 struct lkpi_sta *lsta; 1284 struct ieee80211_prep_tx_info prep_tx_info; 1285 1286 lhw = vap->iv_ic->ic_softc; 1287 hw = LHW_TO_HW(lhw); 1288 lvif = VAP_TO_LVIF(vap); 1289 vif = LVIF_TO_VIF(lvif); 1290 1291 ni = ieee80211_ref_node(vap->iv_bss); 1292 1293 IEEE80211_UNLOCK(vap->iv_ic); 1294 LKPI_80211_LHW_LOCK(lhw); 1295 lsta = ni->ni_drv_data; 1296 1297 IMPROVE("event callback?"); 1298 1299 /* End mgd_complete_tx. */ 1300 if (lsta->in_mgd) { 1301 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1302 prep_tx_info.success = false; 1303 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1304 lsta->in_mgd = false; 1305 } 1306 1307 /* Now start assoc. */ 1308 1309 /* Start mgd_prepare_tx. */ 1310 if (!lsta->in_mgd) { 1311 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1312 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1313 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1314 lsta->in_mgd = true; 1315 } 1316 1317 LKPI_80211_LHW_UNLOCK(lhw); 1318 IEEE80211_LOCK(vap->iv_ic); 1319 if (ni != NULL) 1320 ieee80211_free_node(ni); 1321 1322 return (0); 1323 } 1324 1325 static int 1326 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1327 { 1328 struct lkpi_hw *lhw; 1329 struct ieee80211_hw *hw; 1330 struct lkpi_vif *lvif; 1331 struct ieee80211_vif *vif; 1332 struct ieee80211_node *ni; 1333 struct lkpi_sta *lsta; 1334 struct ieee80211_sta *sta; 1335 struct ieee80211_prep_tx_info prep_tx_info; 1336 enum ieee80211_bss_changed bss_changed; 1337 int error; 1338 1339 lhw = vap->iv_ic->ic_softc; 1340 hw = LHW_TO_HW(lhw); 1341 lvif = VAP_TO_LVIF(vap); 1342 vif = LVIF_TO_VIF(lvif); 1343 1344 /* Keep ni around. */ 1345 ni = ieee80211_ref_node(vap->iv_bss); 1346 lsta = ni->ni_drv_data; 1347 sta = LSTA_TO_STA(lsta); 1348 1349 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1350 1351 IEEE80211_UNLOCK(vap->iv_ic); 1352 LKPI_80211_LHW_LOCK(lhw); 1353 1354 /* flush, drop. */ 1355 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1356 1357 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1358 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1359 !lsta->in_mgd) { 1360 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1361 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1362 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1363 lsta->in_mgd = true; 1364 } 1365 1366 LKPI_80211_LHW_UNLOCK(lhw); 1367 IEEE80211_LOCK(vap->iv_ic); 1368 1369 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1370 error = lvif->iv_newstate(vap, nstate, arg); 1371 if (error != 0) 1372 goto outni; 1373 1374 IEEE80211_UNLOCK(vap->iv_ic); 1375 LKPI_80211_LHW_LOCK(lhw); 1376 1377 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1378 1379 /* Wake tx queues to get packet(s) out. */ 1380 lkpi_wake_tx_queues(hw, sta, true, true); 1381 1382 /* flush, no drop */ 1383 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1384 1385 /* End mgd_complete_tx. */ 1386 if (lsta->in_mgd) { 1387 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1388 prep_tx_info.success = false; 1389 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1390 lsta->in_mgd = false; 1391 } 1392 1393 /* sync_rx_queues */ 1394 lkpi_80211_mo_sync_rx_queues(hw); 1395 1396 /* sta_pre_rcu_remove */ 1397 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1398 1399 /* Take the station down. */ 1400 1401 /* Update sta and change state (from AUTH) to NONE. */ 1402 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1403 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1404 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1405 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1406 if (error != 0) 1407 goto out; 1408 1409 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1410 1411 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1412 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1413 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1414 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1415 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1416 if (error != 0) { 1417 IMPROVE("do we need to undo the chan ctx?"); 1418 goto out; 1419 } 1420 #if 0 1421 lsta->added_to_drv = false; /* mo manages. */ 1422 #endif 1423 1424 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1425 1426 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1427 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1428 lkpi_disassoc(sta, vif, lhw); 1429 1430 IMPROVE("Any bss_info changes to announce?"); 1431 bss_changed = 0; 1432 vif->bss_conf.qos = 0; 1433 bss_changed |= BSS_CHANGED_QOS; 1434 vif->bss_conf.ssid_len = 0; 1435 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1436 bss_changed |= BSS_CHANGED_BSSID; 1437 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1438 1439 lkpi_lsta_remove(lsta, lvif); 1440 1441 /* conf_tx */ 1442 1443 /* Take the chan ctx down. */ 1444 if (vif->chanctx_conf != NULL) { 1445 struct ieee80211_chanctx_conf *conf; 1446 1447 conf = vif->chanctx_conf; 1448 /* Remove vif context. */ 1449 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1450 /* NB: vif->chanctx_conf is NULL now. */ 1451 1452 /* Remove chan ctx. */ 1453 lkpi_80211_mo_remove_chanctx(hw, conf); 1454 free(conf, M_LKPI80211); 1455 } 1456 1457 error = EALREADY; 1458 out: 1459 LKPI_80211_LHW_UNLOCK(lhw); 1460 IEEE80211_LOCK(vap->iv_ic); 1461 outni: 1462 if (ni != NULL) 1463 ieee80211_free_node(ni); 1464 return (error); 1465 } 1466 1467 static int 1468 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1469 { 1470 int error; 1471 1472 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1473 if (error != 0 && error != EALREADY) 1474 return (error); 1475 1476 /* At this point iv_bss is long a new node! */ 1477 1478 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1479 return (error); 1480 } 1481 1482 static int 1483 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1484 { 1485 int error; 1486 1487 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1488 return (error); 1489 } 1490 1491 static int 1492 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1493 { 1494 int error; 1495 1496 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1497 return (error); 1498 } 1499 1500 static int 1501 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1502 { 1503 struct lkpi_hw *lhw; 1504 struct ieee80211_hw *hw; 1505 struct lkpi_vif *lvif; 1506 struct ieee80211_vif *vif; 1507 struct ieee80211_node *ni; 1508 struct lkpi_sta *lsta; 1509 struct ieee80211_sta *sta; 1510 struct ieee80211_prep_tx_info prep_tx_info; 1511 enum ieee80211_bss_changed bss_changed; 1512 int error; 1513 1514 lhw = vap->iv_ic->ic_softc; 1515 hw = LHW_TO_HW(lhw); 1516 lvif = VAP_TO_LVIF(vap); 1517 vif = LVIF_TO_VIF(lvif); 1518 1519 IEEE80211_UNLOCK(vap->iv_ic); 1520 LKPI_80211_LHW_LOCK(lhw); 1521 ni = NULL; 1522 1523 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1524 "and to lesser extend ieee80211_notify_node_join"); 1525 1526 /* Finish assoc. */ 1527 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1528 ni = ieee80211_ref_node(vap->iv_bss); 1529 lsta = ni->ni_drv_data; 1530 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1531 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1532 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1533 sta = LSTA_TO_STA(lsta); 1534 sta->aid = IEEE80211_NODE_AID(ni); 1535 #ifdef LKPI_80211_WME 1536 if (vap->iv_flags & IEEE80211_F_WME) 1537 sta->wme = true; 1538 #endif 1539 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1540 if (error != 0) 1541 goto out; 1542 1543 IMPROVE("wme / conf_tx [all]"); 1544 1545 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1546 bss_changed = 0; 1547 #ifdef LKPI_80211_WME 1548 bss_changed |= lkpi_wme_update(lhw, vap, true); 1549 #endif 1550 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1551 vif->bss_conf.assoc = true; 1552 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1553 bss_changed |= BSS_CHANGED_ASSOC; 1554 } 1555 /* We set SSID but this is not BSSID! */ 1556 vif->bss_conf.ssid_len = ni->ni_esslen; 1557 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1558 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1559 vif->bss_conf.use_short_preamble) { 1560 vif->bss_conf.use_short_preamble ^= 1; 1561 /* bss_changed |= BSS_CHANGED_??? */ 1562 } 1563 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1564 vif->bss_conf.use_short_slot) { 1565 vif->bss_conf.use_short_slot ^= 1; 1566 /* bss_changed |= BSS_CHANGED_??? */ 1567 } 1568 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1569 vif->bss_conf.qos) { 1570 vif->bss_conf.qos ^= 1; 1571 bss_changed |= BSS_CHANGED_QOS; 1572 } 1573 1574 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1575 1576 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1577 1578 /* - change_chanctx (if needed) 1579 * - event_callback 1580 */ 1581 1582 /* End mgd_complete_tx. */ 1583 if (lsta->in_mgd) { 1584 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1585 prep_tx_info.success = true; 1586 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1587 lsta->in_mgd = false; 1588 } 1589 1590 lkpi_hw_conf_idle(hw, false); 1591 1592 /* 1593 * And then: 1594 * - (more packets)? 1595 * - set_key 1596 * - set_default_unicast_key 1597 * - set_key (?) 1598 * - ipv6_addr_change (?) 1599 */ 1600 /* Prepare_multicast && configure_filter. */ 1601 lhw->update_mc = true; 1602 lkpi_update_mcast_filter(vap->iv_ic, true); 1603 1604 if (!ieee80211_node_is_authorized(ni)) { 1605 IMPROVE("net80211 does not consider node authorized"); 1606 } 1607 1608 /* Update sta_state (ASSOC to AUTHORIZED). */ 1609 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1610 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1611 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1612 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTHORIZED); 1613 if (error != 0) { 1614 IMPROVE("undo some changes?"); 1615 goto out; 1616 } 1617 1618 /* - drv_config (?) 1619 * - bss_info_changed 1620 * - set_rekey_data (?) 1621 * 1622 * And now we should be passing packets. 1623 */ 1624 IMPROVE("Need that bssid setting, and the keys"); 1625 1626 bss_changed = 0; 1627 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1628 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1629 1630 out: 1631 LKPI_80211_LHW_UNLOCK(lhw); 1632 IEEE80211_LOCK(vap->iv_ic); 1633 if (ni != NULL) 1634 ieee80211_free_node(ni); 1635 return (error); 1636 } 1637 1638 static int 1639 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1640 { 1641 int error; 1642 1643 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1644 if (error == 0) 1645 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1646 return (error); 1647 } 1648 1649 static int 1650 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1651 { 1652 struct lkpi_hw *lhw; 1653 struct ieee80211_hw *hw; 1654 struct lkpi_vif *lvif; 1655 struct ieee80211_vif *vif; 1656 struct ieee80211_node *ni; 1657 struct lkpi_sta *lsta; 1658 struct ieee80211_sta *sta; 1659 struct ieee80211_prep_tx_info prep_tx_info; 1660 #if 0 1661 enum ieee80211_bss_changed bss_changed; 1662 #endif 1663 int error; 1664 1665 lhw = vap->iv_ic->ic_softc; 1666 hw = LHW_TO_HW(lhw); 1667 lvif = VAP_TO_LVIF(vap); 1668 vif = LVIF_TO_VIF(lvif); 1669 1670 /* Keep ni around. */ 1671 ni = ieee80211_ref_node(vap->iv_bss); 1672 lsta = ni->ni_drv_data; 1673 sta = LSTA_TO_STA(lsta); 1674 1675 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1676 1677 IEEE80211_UNLOCK(vap->iv_ic); 1678 LKPI_80211_LHW_LOCK(lhw); 1679 1680 /* flush, drop. */ 1681 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1682 1683 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1684 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1685 !lsta->in_mgd) { 1686 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1687 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1688 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1689 lsta->in_mgd = true; 1690 } 1691 1692 LKPI_80211_LHW_UNLOCK(lhw); 1693 IEEE80211_LOCK(vap->iv_ic); 1694 1695 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1696 error = lvif->iv_newstate(vap, nstate, arg); 1697 if (error != 0) 1698 goto outni; 1699 1700 IEEE80211_UNLOCK(vap->iv_ic); 1701 LKPI_80211_LHW_LOCK(lhw); 1702 1703 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1704 1705 /* Wake tx queues to get packet(s) out. */ 1706 lkpi_wake_tx_queues(hw, sta, true, true); 1707 1708 /* flush, no drop */ 1709 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1710 1711 /* End mgd_complete_tx. */ 1712 if (lsta->in_mgd) { 1713 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1714 prep_tx_info.success = false; 1715 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1716 lsta->in_mgd = false; 1717 } 1718 1719 #if 0 1720 /* sync_rx_queues */ 1721 lkpi_80211_mo_sync_rx_queues(hw); 1722 1723 /* sta_pre_rcu_remove */ 1724 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1725 #endif 1726 1727 /* Take the station down. */ 1728 1729 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1730 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1731 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1732 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1733 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1734 if (error != 0) 1735 goto out; 1736 1737 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1738 1739 /* Update sta_state (ASSOC to AUTH). */ 1740 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1741 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1742 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1743 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1744 if (error != 0) 1745 goto out; 1746 1747 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1748 1749 #if 0 1750 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1751 lkpi_disassoc(sta, vif, lhw); 1752 #endif 1753 1754 error = EALREADY; 1755 out: 1756 LKPI_80211_LHW_UNLOCK(lhw); 1757 IEEE80211_LOCK(vap->iv_ic); 1758 outni: 1759 if (ni != NULL) 1760 ieee80211_free_node(ni); 1761 return (error); 1762 } 1763 1764 static int 1765 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1766 { 1767 struct lkpi_hw *lhw; 1768 struct ieee80211_hw *hw; 1769 struct lkpi_vif *lvif; 1770 struct ieee80211_vif *vif; 1771 struct ieee80211_node *ni; 1772 struct lkpi_sta *lsta; 1773 struct ieee80211_sta *sta; 1774 struct ieee80211_prep_tx_info prep_tx_info; 1775 enum ieee80211_bss_changed bss_changed; 1776 int error; 1777 1778 lhw = vap->iv_ic->ic_softc; 1779 hw = LHW_TO_HW(lhw); 1780 lvif = VAP_TO_LVIF(vap); 1781 vif = LVIF_TO_VIF(lvif); 1782 1783 /* Keep ni around. */ 1784 ni = ieee80211_ref_node(vap->iv_bss); 1785 lsta = ni->ni_drv_data; 1786 sta = LSTA_TO_STA(lsta); 1787 1788 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1789 1790 IEEE80211_UNLOCK(vap->iv_ic); 1791 LKPI_80211_LHW_LOCK(lhw); 1792 1793 /* flush, drop. */ 1794 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1795 1796 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1797 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1798 !lsta->in_mgd) { 1799 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1800 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1801 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1802 lsta->in_mgd = true; 1803 } 1804 1805 LKPI_80211_LHW_UNLOCK(lhw); 1806 IEEE80211_LOCK(vap->iv_ic); 1807 1808 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1809 error = lvif->iv_newstate(vap, nstate, arg); 1810 if (error != 0) 1811 goto outni; 1812 1813 IEEE80211_UNLOCK(vap->iv_ic); 1814 LKPI_80211_LHW_LOCK(lhw); 1815 1816 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1817 1818 /* Wake tx queues to get packet(s) out. */ 1819 lkpi_wake_tx_queues(hw, sta, true, true); 1820 1821 /* flush, no drop */ 1822 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1823 1824 /* End mgd_complete_tx. */ 1825 if (lsta->in_mgd) { 1826 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1827 prep_tx_info.success = false; 1828 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1829 lsta->in_mgd = false; 1830 } 1831 1832 /* sync_rx_queues */ 1833 lkpi_80211_mo_sync_rx_queues(hw); 1834 1835 /* sta_pre_rcu_remove */ 1836 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1837 1838 /* Take the station down. */ 1839 1840 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1841 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1842 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1843 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1844 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_ASSOC); 1845 if (error != 0) 1846 goto out; 1847 1848 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1849 1850 /* Update sta_state (ASSOC to AUTH). */ 1851 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1852 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1853 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1854 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_AUTH); 1855 if (error != 0) 1856 goto out; 1857 1858 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1859 1860 /* Update sta and change state (from AUTH) to NONE. */ 1861 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1862 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1863 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1864 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NONE); 1865 if (error != 0) 1866 goto out; 1867 1868 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1869 1870 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1871 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1872 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1873 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1874 error = lkpi_80211_mo_sta_state(hw, vif, lsta, IEEE80211_STA_NOTEXIST); 1875 if (error != 0) { 1876 IMPROVE("do we need to undo the chan ctx?"); 1877 goto out; 1878 } 1879 #if 0 1880 lsta->added_to_drv = false; /* mo manages. */ 1881 #endif 1882 1883 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1884 1885 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1886 /* 1887 * One would expect this to happen when going off AUTHORIZED. 1888 * See comment there; removes the sta from fw. 1889 */ 1890 lkpi_disassoc(sta, vif, lhw); 1891 1892 IMPROVE("Any bss_info changes to announce?"); 1893 bss_changed = 0; 1894 vif->bss_conf.qos = 0; 1895 bss_changed |= BSS_CHANGED_QOS; 1896 vif->bss_conf.ssid_len = 0; 1897 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1898 bss_changed |= BSS_CHANGED_BSSID; 1899 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1900 1901 lkpi_lsta_remove(lsta, lvif); 1902 1903 /* conf_tx */ 1904 1905 /* Take the chan ctx down. */ 1906 if (vif->chanctx_conf != NULL) { 1907 struct ieee80211_chanctx_conf *conf; 1908 1909 conf = vif->chanctx_conf; 1910 /* Remove vif context. */ 1911 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1912 /* NB: vif->chanctx_conf is NULL now. */ 1913 1914 /* Remove chan ctx. */ 1915 lkpi_80211_mo_remove_chanctx(hw, conf); 1916 free(conf, M_LKPI80211); 1917 } 1918 1919 error = EALREADY; 1920 out: 1921 LKPI_80211_LHW_UNLOCK(lhw); 1922 IEEE80211_LOCK(vap->iv_ic); 1923 outni: 1924 if (ni != NULL) 1925 ieee80211_free_node(ni); 1926 return (error); 1927 } 1928 1929 static int 1930 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1931 { 1932 1933 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1934 } 1935 1936 static int 1937 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1938 { 1939 int error; 1940 1941 error = lkpi_sta_run_to_init(vap, nstate, arg); 1942 if (error != 0 && error != EALREADY) 1943 return (error); 1944 1945 /* At this point iv_bss is long a new node! */ 1946 1947 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1948 return (error); 1949 } 1950 1951 /* -------------------------------------------------------------------------- */ 1952 1953 /* 1954 * The matches the documented state changes in net80211::sta_newstate(). 1955 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1956 * there are "invalid" (so there is a room for failure here). 1957 */ 1958 struct fsm_state { 1959 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1960 enum ieee80211_state ostate; 1961 enum ieee80211_state nstate; 1962 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1963 } sta_state_fsm[] = { 1964 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1965 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1966 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1967 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1968 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1969 1970 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1971 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1972 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1973 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1974 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1975 1976 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1977 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1978 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1979 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1980 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1981 1982 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1983 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1984 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1985 1986 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1987 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1988 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1989 1990 /* Dummy at the end without handler. */ 1991 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1992 }; 1993 1994 static int 1995 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1996 { 1997 struct ieee80211com *ic; 1998 struct lkpi_hw *lhw; 1999 struct lkpi_vif *lvif; 2000 struct ieee80211_vif *vif; 2001 struct fsm_state *s; 2002 enum ieee80211_state ostate; 2003 int error; 2004 2005 ic = vap->iv_ic; 2006 IEEE80211_LOCK_ASSERT(ic); 2007 ostate = vap->iv_state; 2008 2009 #ifdef LINUXKPI_DEBUG_80211 2010 if (linuxkpi_debug_80211 & D80211_TRACE) 2011 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 2012 __func__, __LINE__, vap, nstate, arg); 2013 #endif 2014 2015 if (vap->iv_opmode == IEEE80211_M_STA) { 2016 2017 lhw = ic->ic_softc; 2018 lvif = VAP_TO_LVIF(vap); 2019 vif = LVIF_TO_VIF(lvif); 2020 2021 /* No need to replicate this in most state handlers. */ 2022 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2023 lkpi_stop_hw_scan(lhw, vif); 2024 2025 s = sta_state_fsm; 2026 2027 } else { 2028 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2029 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2030 return (ENOSYS); 2031 } 2032 2033 error = 0; 2034 for (; s->handler != NULL; s++) { 2035 if (ostate == s->ostate && nstate == s->nstate) { 2036 #ifdef LINUXKPI_DEBUG_80211 2037 if (linuxkpi_debug_80211 & D80211_TRACE) 2038 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2039 " %d (%s): arg %d.\n", __func__, 2040 ostate, ieee80211_state_name[ostate], 2041 nstate, ieee80211_state_name[nstate], arg); 2042 #endif 2043 error = s->handler(vap, nstate, arg); 2044 break; 2045 } 2046 } 2047 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2048 2049 if (s->handler == NULL) { 2050 IMPROVE("turn this into a KASSERT\n"); 2051 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2052 "%d (%s) -> %d (%s)\n", __func__, 2053 ostate, ieee80211_state_name[ostate], 2054 nstate, ieee80211_state_name[nstate]); 2055 return (ENOSYS); 2056 } 2057 2058 if (error == EALREADY) { 2059 #ifdef LINUXKPI_DEBUG_80211 2060 if (linuxkpi_debug_80211 & D80211_TRACE) 2061 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2062 "%d (%s): iv_newstate already handled: %d.\n", 2063 __func__, ostate, ieee80211_state_name[ostate], 2064 nstate, ieee80211_state_name[nstate], error); 2065 #endif 2066 return (0); 2067 } 2068 2069 if (error != 0) { 2070 /* XXX-BZ currently expected so ignore. */ 2071 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2072 "%d (%s) -> %d (%s)\n", __func__, error, 2073 ostate, ieee80211_state_name[ostate], 2074 nstate, ieee80211_state_name[nstate]); 2075 /* return (error); */ 2076 } 2077 2078 #ifdef LINUXKPI_DEBUG_80211 2079 if (linuxkpi_debug_80211 & D80211_TRACE) 2080 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2081 "calling net80211 parent\n", 2082 __func__, __LINE__, vap, nstate, arg); 2083 #endif 2084 2085 return (lvif->iv_newstate(vap, nstate, arg)); 2086 } 2087 2088 /* -------------------------------------------------------------------------- */ 2089 2090 /* 2091 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2092 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2093 * new node without us knowing and thus our ni/lsta are out of sync. 2094 */ 2095 static struct ieee80211_node * 2096 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2097 { 2098 struct lkpi_vif *lvif; 2099 struct ieee80211_node *obss; 2100 struct lkpi_sta *lsta; 2101 struct ieee80211_sta *sta; 2102 2103 obss = vap->iv_bss; 2104 2105 #ifdef LINUXKPI_DEBUG_80211 2106 if (linuxkpi_debug_80211 & D80211_TRACE) 2107 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2108 "ni %p ni_drv_data %p\n", __func__, 2109 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2110 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2111 #endif 2112 2113 /* Nothing to copy from. Just return. */ 2114 if (obss == NULL || obss->ni_drv_data == NULL) 2115 goto out; 2116 2117 /* Nothing to copy to. Just return. */ 2118 IMPROVE("clearing the obss might still be needed?"); 2119 if (ni == NULL) 2120 goto out; 2121 2122 /* Nothing changed? panic? */ 2123 if (obss == ni) 2124 goto out; 2125 2126 lsta = obss->ni_drv_data; 2127 obss->ni_drv_data = ni->ni_drv_data; 2128 ni->ni_drv_data = lsta; 2129 if (lsta != NULL) { 2130 lsta->ni = ni; 2131 sta = LSTA_TO_STA(lsta); 2132 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2133 } 2134 lsta = obss->ni_drv_data; 2135 if (lsta != NULL) { 2136 lsta->ni = obss; 2137 sta = LSTA_TO_STA(lsta); 2138 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2139 } 2140 2141 out: 2142 lvif = VAP_TO_LVIF(vap); 2143 return (lvif->iv_update_bss(vap, ni)); 2144 } 2145 2146 #ifdef LKPI_80211_WME 2147 static int 2148 lkpi_wme_update(struct lkpi_hw *lhw, struct ieee80211vap *vap, bool planned) 2149 { 2150 struct ieee80211com *ic; 2151 struct ieee80211_hw *hw; 2152 struct lkpi_vif *lvif; 2153 struct ieee80211_vif *vif; 2154 struct chanAccParams chp; 2155 struct wmeParams wmeparr[WME_NUM_AC]; 2156 struct ieee80211_tx_queue_params txqp; 2157 enum ieee80211_bss_changed changed; 2158 int error; 2159 uint16_t ac; 2160 2161 IMPROVE(); 2162 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2163 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2164 2165 if (vap == NULL) 2166 return (0); 2167 2168 if ((vap->iv_flags & IEEE80211_F_WME) == 0) 2169 return (0); 2170 2171 if (lhw->ops->conf_tx == NULL) 2172 return (0); 2173 2174 if (!planned && (vap->iv_state != IEEE80211_S_RUN)) { 2175 lhw->update_wme = true; 2176 return (0); 2177 } 2178 lhw->update_wme = false; 2179 2180 ic = lhw->ic; 2181 ieee80211_wme_ic_getparams(ic, &chp); 2182 IEEE80211_LOCK(ic); 2183 for (ac = 0; ac < WME_NUM_AC; ac++) 2184 wmeparr[ac] = chp.cap_wmeParams[ac]; 2185 IEEE80211_UNLOCK(ic); 2186 2187 hw = LHW_TO_HW(lhw); 2188 lvif = VAP_TO_LVIF(vap); 2189 vif = LVIF_TO_VIF(lvif); 2190 2191 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2192 LKPI_80211_LHW_LOCK(lhw); 2193 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2194 struct wmeParams *wmep; 2195 2196 wmep = &wmeparr[ac]; 2197 bzero(&txqp, sizeof(txqp)); 2198 txqp.cw_min = wmep->wmep_logcwmin; 2199 txqp.cw_max = wmep->wmep_logcwmax; 2200 txqp.txop = wmep->wmep_txopLimit; 2201 txqp.aifs = wmep->wmep_aifsn; 2202 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2203 if (error != 0) 2204 ic_printf(ic, "%s: conf_tx ac %u failed %d\n", 2205 __func__, ac, error); 2206 } 2207 LKPI_80211_LHW_UNLOCK(lhw); 2208 changed = BSS_CHANGED_QOS; 2209 if (!planned) 2210 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2211 2212 return (changed); 2213 } 2214 #endif 2215 2216 static int 2217 lkpi_ic_wme_update(struct ieee80211com *ic) 2218 { 2219 #ifdef LKPI_80211_WME 2220 struct ieee80211vap *vap; 2221 struct lkpi_hw *lhw; 2222 2223 IMPROVE("Use the per-VAP callback in net80211."); 2224 vap = TAILQ_FIRST(&ic->ic_vaps); 2225 if (vap == NULL) 2226 return (0); 2227 2228 lhw = ic->ic_softc; 2229 2230 lkpi_wme_update(lhw, vap, false); 2231 #endif 2232 return (0); /* unused */ 2233 } 2234 2235 static struct ieee80211vap * 2236 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2237 int unit, enum ieee80211_opmode opmode, int flags, 2238 const uint8_t bssid[IEEE80211_ADDR_LEN], 2239 const uint8_t mac[IEEE80211_ADDR_LEN]) 2240 { 2241 struct lkpi_hw *lhw; 2242 struct ieee80211_hw *hw; 2243 struct lkpi_vif *lvif; 2244 struct ieee80211vap *vap; 2245 struct ieee80211_vif *vif; 2246 enum ieee80211_bss_changed changed; 2247 size_t len; 2248 int error, i; 2249 2250 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2251 return (NULL); 2252 2253 lhw = ic->ic_softc; 2254 hw = LHW_TO_HW(lhw); 2255 2256 len = sizeof(*lvif); 2257 len += hw->vif_data_size; /* vif->drv_priv */ 2258 2259 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2260 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2261 TAILQ_INIT(&lvif->lsta_head); 2262 vap = LVIF_TO_VAP(lvif); 2263 2264 vif = LVIF_TO_VIF(lvif); 2265 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2266 vif->p2p = false; 2267 vif->probe_req_reg = false; 2268 vif->type = lkpi_opmode_to_vif_type(opmode); 2269 lvif->wdev.iftype = vif->type; 2270 /* Need to fill in other fields as well. */ 2271 IMPROVE(); 2272 2273 /* XXX-BZ hardcoded for now! */ 2274 #if 1 2275 vif->chanctx_conf = NULL; 2276 vif->bss_conf.idle = true; 2277 vif->bss_conf.ps = false; 2278 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2279 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2280 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2281 vif->bss_conf.qos = false; 2282 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2283 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2284 vif->bss_conf.assoc = false; 2285 vif->bss_conf.aid = 0; 2286 /* 2287 * We need to initialize it to something as the bss_info_changed call 2288 * will try to copy from it in iwlwifi and NULL is a panic. 2289 * We will set the proper one in scan_to_auth() before being assoc. 2290 * NB: the logic there with using an array as bssid_override and checking 2291 * for non-NULL later is flawed but in their workflow does not seem to 2292 * matter. 2293 */ 2294 vif->bss_conf.bssid = zerobssid; 2295 #endif 2296 #if 0 2297 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2298 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2299 vif->bss_conf.beacon_int = ic->ic_bintval; 2300 /* iwlwifi bug. */ 2301 if (vif->bss_conf.beacon_int < 16) 2302 vif->bss_conf.beacon_int = 16; 2303 #endif 2304 2305 /* Setup queue defaults; driver may override in (*add_interface). */ 2306 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2307 if (ieee80211_hw_check(hw, QUEUE_CONTROL)) 2308 vif->hw_queue[i] = IEEE80211_INVAL_HW_QUEUE; 2309 else if (hw->queues >= IEEE80211_NUM_ACS) 2310 vif->hw_queue[i] = i; 2311 else 2312 vif->hw_queue[i] = 0; 2313 2314 /* Initialize the queue to running. Stopped? */ 2315 lvif->hw_queue_stopped[i] = false; 2316 } 2317 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; 2318 2319 IMPROVE(); 2320 2321 error = lkpi_80211_mo_start(hw); 2322 if (error != 0) { 2323 ic_printf(ic, "%s: failed to start hw: %d\n", __func__, error); 2324 mtx_destroy(&lvif->mtx); 2325 free(lvif, M_80211_VAP); 2326 return (NULL); 2327 } 2328 2329 error = lkpi_80211_mo_add_interface(hw, vif); 2330 if (error != 0) { 2331 IMPROVE(); /* XXX-BZ mo_stop()? */ 2332 ic_printf(ic, "%s: failed to add interface: %d\n", __func__, error); 2333 mtx_destroy(&lvif->mtx); 2334 free(lvif, M_80211_VAP); 2335 return (NULL); 2336 } 2337 2338 LKPI_80211_LHW_LVIF_LOCK(lhw); 2339 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2340 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2341 2342 /* Set bss_info. */ 2343 changed = 0; 2344 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2345 2346 /* conf_tx setup; default WME? */ 2347 2348 /* Force MC init. */ 2349 lkpi_update_mcast_filter(ic, true); 2350 2351 IMPROVE(); 2352 2353 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2354 2355 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2356 lvif->iv_newstate = vap->iv_newstate; 2357 vap->iv_newstate = lkpi_iv_newstate; 2358 lvif->iv_update_bss = vap->iv_update_bss; 2359 vap->iv_update_bss = lkpi_iv_update_bss; 2360 2361 /* Key management. */ 2362 if (lhw->ops->set_key != NULL) { 2363 #ifdef LKPI_80211_HW_CRYPTO 2364 vap->iv_key_set = lkpi_iv_key_set; 2365 vap->iv_key_delete = lkpi_iv_key_delete; 2366 #endif 2367 } 2368 2369 ieee80211_ratectl_init(vap); 2370 2371 /* Complete setup. */ 2372 ieee80211_vap_attach(vap, ieee80211_media_change, 2373 ieee80211_media_status, mac); 2374 2375 if (hw->max_listen_interval == 0) 2376 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2377 hw->conf.listen_interval = hw->max_listen_interval; 2378 ic->ic_set_channel(ic); 2379 2380 /* XXX-BZ do we need to be able to update these? */ 2381 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2382 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2383 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2384 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2385 /* any others? */ 2386 IMPROVE(); 2387 2388 return (vap); 2389 } 2390 2391 void 2392 linuxkpi_ieee80211_unregister_hw(struct ieee80211_hw *hw) 2393 { 2394 2395 wiphy_unregister(hw->wiphy); 2396 linuxkpi_ieee80211_ifdetach(hw); 2397 2398 IMPROVE(); 2399 } 2400 2401 void 2402 linuxkpi_ieee80211_restart_hw(struct ieee80211_hw *hw) 2403 { 2404 2405 TODO(); 2406 } 2407 2408 static void 2409 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2410 { 2411 struct ieee80211com *ic; 2412 struct lkpi_hw *lhw; 2413 struct ieee80211_hw *hw; 2414 struct lkpi_vif *lvif; 2415 struct ieee80211_vif *vif; 2416 2417 lvif = VAP_TO_LVIF(vap); 2418 vif = LVIF_TO_VIF(lvif); 2419 ic = vap->iv_ic; 2420 lhw = ic->ic_softc; 2421 hw = LHW_TO_HW(lhw); 2422 2423 LKPI_80211_LHW_LVIF_LOCK(lhw); 2424 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2425 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2426 lkpi_80211_mo_remove_interface(hw, vif); 2427 2428 ieee80211_ratectl_deinit(vap); 2429 ieee80211_vap_detach(vap); 2430 mtx_destroy(&lvif->mtx); 2431 free(lvif, M_80211_VAP); 2432 } 2433 2434 static void 2435 lkpi_ic_update_mcast(struct ieee80211com *ic) 2436 { 2437 2438 lkpi_update_mcast_filter(ic, false); 2439 TRACEOK(); 2440 } 2441 2442 static void 2443 lkpi_ic_update_promisc(struct ieee80211com *ic) 2444 { 2445 2446 UNIMPLEMENTED; 2447 } 2448 2449 static void 2450 lkpi_ic_update_chw(struct ieee80211com *ic) 2451 { 2452 2453 UNIMPLEMENTED; 2454 } 2455 2456 /* Start / stop device. */ 2457 static void 2458 lkpi_ic_parent(struct ieee80211com *ic) 2459 { 2460 struct lkpi_hw *lhw; 2461 struct ieee80211_hw *hw; 2462 int error; 2463 bool start_all; 2464 2465 IMPROVE(); 2466 2467 lhw = ic->ic_softc; 2468 hw = LHW_TO_HW(lhw); 2469 start_all = false; 2470 2471 /* IEEE80211_UNLOCK(ic); */ 2472 LKPI_80211_LHW_LOCK(lhw); 2473 if (ic->ic_nrunning > 0) { 2474 error = lkpi_80211_mo_start(hw); 2475 if (error == 0) 2476 start_all = true; 2477 } else { 2478 lkpi_80211_mo_stop(hw); 2479 } 2480 LKPI_80211_LHW_UNLOCK(lhw); 2481 /* IEEE80211_LOCK(ic); */ 2482 2483 if (start_all) 2484 ieee80211_start_all(ic); 2485 } 2486 2487 bool 2488 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2489 size_t ie_ids_len) 2490 { 2491 int i; 2492 2493 for (i = 0; i < ie_ids_len; i++) { 2494 if (ie == *ie_ids) 2495 return (true); 2496 } 2497 2498 return (false); 2499 } 2500 2501 /* Return true if skipped; false if error. */ 2502 bool 2503 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2504 { 2505 size_t x; 2506 uint8_t l; 2507 2508 x = *xp; 2509 2510 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2511 __func__, x, ies_len, ies)); 2512 l = ies[x + 1]; 2513 x += 2 + l; 2514 2515 if (x > ies_len) 2516 return (false); 2517 2518 *xp = x; 2519 return (true); 2520 } 2521 2522 static uint8_t * 2523 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2524 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2525 { 2526 struct ieee80211_supported_band *supband; 2527 struct linuxkpi_ieee80211_channel *channels; 2528 struct ieee80211com *ic; 2529 const struct ieee80211_channel *chan; 2530 const struct ieee80211_rateset *rs; 2531 uint8_t *pb; 2532 int band, i; 2533 2534 ic = vap->iv_ic; 2535 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2536 if ((band_mask & (1 << band)) == 0) 2537 continue; 2538 2539 supband = hw->wiphy->bands[band]; 2540 /* 2541 * This should not happen; 2542 * band_mask is a bitmask of valid bands to scan on. 2543 */ 2544 if (supband == NULL || supband->n_channels == 0) 2545 continue; 2546 2547 /* Find a first channel to get the mode and rates from. */ 2548 channels = supband->channels; 2549 chan = NULL; 2550 for (i = 0; i < supband->n_channels; i++) { 2551 2552 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2553 continue; 2554 2555 chan = ieee80211_find_channel(ic, 2556 channels[i].center_freq, 0); 2557 if (chan != NULL) 2558 break; 2559 } 2560 2561 /* This really should not happen. */ 2562 if (chan == NULL) 2563 continue; 2564 2565 pb = p; 2566 rs = ieee80211_get_suprates(ic, chan); /* calls chan2mode */ 2567 p = ieee80211_add_rates(p, rs); 2568 p = ieee80211_add_xrates(p, rs); 2569 2570 #if defined(LKPI_80211_HT) 2571 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) != 0) { 2572 struct ieee80211_channel *c; 2573 2574 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2575 vap->iv_flags_ht); 2576 p = ieee80211_add_htcap_ch(p, vap, c); 2577 } 2578 #endif 2579 #if defined(LKPI_80211_VHT) 2580 if ((vap->iv_vht_flags & IEEE80211_FVHT_VHT) != 0) { 2581 struct ieee80211_channel *c; 2582 2583 c = ieee80211_ht_adjust_channel(ic, ic->ic_curchan, 2584 vap->iv_flags_ht); 2585 c = ieee80211_vht_adjust_channel(ic, c, 2586 vap->iv_vht_flags); 2587 p = ieee80211_add_vhtcap_ch(p, vap, c); 2588 } 2589 #endif 2590 2591 scan_ies->ies[band] = pb; 2592 scan_ies->len[band] = p - pb; 2593 } 2594 2595 /* Add common_ies */ 2596 pb = p; 2597 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2598 vap->iv_wpa_ie != NULL) { 2599 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2600 p += 2 + vap->iv_wpa_ie[1]; 2601 } 2602 if (vap->iv_appie_probereq != NULL) { 2603 memcpy(p, vap->iv_appie_probereq->ie_data, 2604 vap->iv_appie_probereq->ie_len); 2605 p += vap->iv_appie_probereq->ie_len; 2606 } 2607 scan_ies->common_ies = pb; 2608 scan_ies->common_ie_len = p - pb; 2609 2610 return (p); 2611 } 2612 2613 static void 2614 lkpi_ic_scan_start(struct ieee80211com *ic) 2615 { 2616 struct lkpi_hw *lhw; 2617 struct ieee80211_hw *hw; 2618 struct lkpi_vif *lvif; 2619 struct ieee80211_vif *vif; 2620 struct ieee80211_scan_state *ss; 2621 struct ieee80211vap *vap; 2622 int error; 2623 bool is_hw_scan; 2624 2625 lhw = ic->ic_softc; 2626 LKPI_80211_LHW_SCAN_LOCK(lhw); 2627 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2628 /* A scan is still running. */ 2629 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2630 return; 2631 } 2632 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2633 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2634 2635 ss = ic->ic_scan; 2636 vap = ss->ss_vap; 2637 if (vap->iv_state != IEEE80211_S_SCAN) { 2638 IMPROVE("We need to be able to scan if not in S_SCAN"); 2639 return; 2640 } 2641 2642 hw = LHW_TO_HW(lhw); 2643 if (!is_hw_scan) { 2644 /* If hw_scan is cleared clear FEXT_SCAN_OFFLOAD too. */ 2645 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2646 sw_scan: 2647 lvif = VAP_TO_LVIF(vap); 2648 vif = LVIF_TO_VIF(lvif); 2649 2650 if (vap->iv_state == IEEE80211_S_SCAN) 2651 lkpi_hw_conf_idle(hw, false); 2652 2653 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2654 /* net80211::scan_start() handled PS for us. */ 2655 IMPROVE(); 2656 /* XXX Also means it is too late to flush queues? 2657 * need to check iv_sta_ps or overload? */ 2658 /* XXX want to adjust ss end time/ maxdwell? */ 2659 2660 } else { 2661 struct ieee80211_channel *c; 2662 struct ieee80211_scan_request *hw_req; 2663 struct linuxkpi_ieee80211_channel *lc, **cpp; 2664 struct cfg80211_ssid *ssids; 2665 struct cfg80211_scan_6ghz_params *s6gp; 2666 size_t chan_len, nchan, ssids_len, s6ghzlen; 2667 int band, i, ssid_count, common_ie_len; 2668 uint32_t band_mask; 2669 uint8_t *ie, *ieend; 2670 bool running; 2671 2672 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2673 ssids_len = ssid_count * sizeof(*ssids); 2674 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2675 2676 band_mask = 0; 2677 nchan = 0; 2678 for (i = ss->ss_next; i < ss->ss_last; i++) { 2679 nchan++; 2680 band = lkpi_net80211_chan_to_nl80211_band( 2681 ss->ss_chans[ss->ss_next + i]); 2682 band_mask |= (1 << band); 2683 } 2684 2685 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2686 IMPROVE("individual band scans not yet supported, only scanning first band"); 2687 /* In theory net80211 should drive this. */ 2688 /* Probably we need to add local logic for now; 2689 * need to deal with scan_complete 2690 * and cancel_scan and keep local state. 2691 * Also cut the nchan down above. 2692 */ 2693 /* XXX-BZ ath10k does not set this but still does it? &$%^ */ 2694 } 2695 2696 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2697 2698 common_ie_len = 0; 2699 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2700 vap->iv_wpa_ie != NULL) 2701 common_ie_len += vap->iv_wpa_ie[1]; 2702 if (vap->iv_appie_probereq != NULL) 2703 common_ie_len += vap->iv_appie_probereq->ie_len; 2704 2705 /* We would love to check this at an earlier stage... */ 2706 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2707 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2708 "wiphy->max_scan_ie_len %d\n", __func__, 2709 common_ie_len, hw->wiphy->max_scan_ie_len); 2710 } 2711 2712 hw_req = malloc(sizeof(*hw_req) + ssids_len + 2713 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2714 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2715 2716 hw_req->req.flags = 0; /* XXX ??? */ 2717 /* hw_req->req.wdev */ 2718 hw_req->req.wiphy = hw->wiphy; 2719 hw_req->req.no_cck = false; /* XXX */ 2720 #if 0 2721 /* This seems to pessimise default scanning behaviour. */ 2722 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2723 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2724 #endif 2725 #ifdef __notyet__ 2726 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2727 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2728 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2729 #endif 2730 2731 hw_req->req.n_channels = nchan; 2732 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2733 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2734 for (i = 0; i < nchan; i++) { 2735 *(cpp + i) = 2736 (struct linuxkpi_ieee80211_channel *)(lc + i); 2737 } 2738 for (i = 0; i < nchan; i++) { 2739 c = ss->ss_chans[ss->ss_next + i]; 2740 2741 lc->hw_value = c->ic_ieee; 2742 lc->center_freq = c->ic_freq; /* XXX */ 2743 /* lc->flags */ 2744 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2745 lc->max_power = c->ic_maxpower; 2746 /* lc-> ... */ 2747 lc++; 2748 } 2749 2750 hw_req->req.n_ssids = ssid_count; 2751 if (hw_req->req.n_ssids > 0) { 2752 ssids = (struct cfg80211_ssid *)lc; 2753 hw_req->req.ssids = ssids; 2754 for (i = 0; i < ssid_count; i++) { 2755 ssids->ssid_len = ss->ss_ssid[i].len; 2756 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2757 ss->ss_ssid[i].len); 2758 ssids++; 2759 } 2760 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2761 } else { 2762 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2763 } 2764 2765 /* 6GHz one day. */ 2766 hw_req->req.n_6ghz_params = 0; 2767 hw_req->req.scan_6ghz_params = NULL; 2768 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2769 /* s6gp->... */ 2770 2771 ie = ieend = (uint8_t *)s6gp; 2772 /* Copy per-band IEs, copy common IEs */ 2773 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2774 hw_req->req.ie = ie; 2775 hw_req->req.ie_len = ieend - ie; 2776 2777 lvif = VAP_TO_LVIF(vap); 2778 vif = LVIF_TO_VIF(lvif); 2779 2780 LKPI_80211_LHW_SCAN_LOCK(lhw); 2781 /* Re-check under lock. */ 2782 running = (lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0; 2783 if (!running) { 2784 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2785 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2786 2787 lhw->scan_flags |= LKPI_LHW_SCAN_RUNNING; 2788 lhw->hw_req = hw_req; 2789 } 2790 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2791 if (running) { 2792 free(hw_req, M_LKPI80211); 2793 return; 2794 } 2795 2796 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2797 if (error != 0) { 2798 ieee80211_cancel_scan(vap); 2799 2800 /* 2801 * ieee80211_scan_completed must be called in either 2802 * case of error or none. So let the free happen there 2803 * and only there. 2804 * That would be fine in theory but in practice drivers 2805 * behave differently: 2806 * ath10k does not return hw_scan until after scan_complete 2807 * and can then still return an error. 2808 * rtw88 can return 1 or -EBUSY without scan_complete 2809 * iwlwifi can return various errors before scan starts 2810 * ... 2811 * So we cannot rely on that behaviour and have to check 2812 * and balance between both code paths. 2813 */ 2814 LKPI_80211_LHW_SCAN_LOCK(lhw); 2815 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) != 0) { 2816 free(lhw->hw_req, M_LKPI80211); 2817 lhw->hw_req = NULL; 2818 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 2819 } 2820 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2821 2822 /* 2823 * XXX-SIGH magic number. 2824 * rtw88 has a magic "return 1" if offloading scan is 2825 * not possible. Fall back to sw scan in that case. 2826 */ 2827 if (error == 1) { 2828 LKPI_80211_LHW_SCAN_LOCK(lhw); 2829 lhw->scan_flags &= ~LKPI_LHW_SCAN_HW; 2830 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2831 /* 2832 * XXX If we clear this now and later a driver 2833 * thinks it * can do a hw_scan again, we will 2834 * currently not re-enable it? 2835 */ 2836 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2837 ieee80211_start_scan(vap, 2838 IEEE80211_SCAN_ACTIVE | 2839 IEEE80211_SCAN_NOPICK | 2840 IEEE80211_SCAN_ONCE, 2841 IEEE80211_SCAN_FOREVER, 2842 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2843 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2844 vap->iv_des_nssid, vap->iv_des_ssid); 2845 goto sw_scan; 2846 } 2847 2848 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2849 __func__, error); 2850 } 2851 } 2852 } 2853 2854 static void 2855 lkpi_ic_scan_end(struct ieee80211com *ic) 2856 { 2857 struct lkpi_hw *lhw; 2858 bool is_hw_scan; 2859 2860 lhw = ic->ic_softc; 2861 LKPI_80211_LHW_SCAN_LOCK(lhw); 2862 if ((lhw->scan_flags & LKPI_LHW_SCAN_RUNNING) == 0) { 2863 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2864 return; 2865 } 2866 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2867 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2868 2869 if (!is_hw_scan) { 2870 struct ieee80211_scan_state *ss; 2871 struct ieee80211vap *vap; 2872 struct ieee80211_hw *hw; 2873 struct lkpi_vif *lvif; 2874 struct ieee80211_vif *vif; 2875 2876 ss = ic->ic_scan; 2877 vap = ss->ss_vap; 2878 hw = LHW_TO_HW(lhw); 2879 lvif = VAP_TO_LVIF(vap); 2880 vif = LVIF_TO_VIF(lvif); 2881 2882 lkpi_80211_mo_sw_scan_complete(hw, vif); 2883 2884 /* Send PS to stop buffering if n80211 does not for us? */ 2885 2886 if (vap->iv_state == IEEE80211_S_SCAN) 2887 lkpi_hw_conf_idle(hw, true); 2888 } 2889 } 2890 2891 static void 2892 lkpi_ic_scan_curchan(struct ieee80211_scan_state *ss, 2893 unsigned long maxdwell) 2894 { 2895 struct lkpi_hw *lhw; 2896 bool is_hw_scan; 2897 2898 lhw = ss->ss_ic->ic_softc; 2899 LKPI_80211_LHW_SCAN_LOCK(lhw); 2900 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2901 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2902 if (!is_hw_scan) 2903 lhw->ic_scan_curchan(ss, maxdwell); 2904 } 2905 2906 static void 2907 lkpi_ic_scan_mindwell(struct ieee80211_scan_state *ss) 2908 { 2909 struct lkpi_hw *lhw; 2910 bool is_hw_scan; 2911 2912 lhw = ss->ss_ic->ic_softc; 2913 LKPI_80211_LHW_SCAN_LOCK(lhw); 2914 is_hw_scan = (lhw->scan_flags & LKPI_LHW_SCAN_HW) != 0; 2915 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2916 if (!is_hw_scan) 2917 lhw->ic_scan_mindwell(ss); 2918 } 2919 2920 static void 2921 lkpi_ic_set_channel(struct ieee80211com *ic) 2922 { 2923 struct lkpi_hw *lhw; 2924 struct ieee80211_hw *hw; 2925 struct ieee80211_channel *c; 2926 struct linuxkpi_ieee80211_channel *chan; 2927 int error; 2928 bool hw_scan_running; 2929 2930 lhw = ic->ic_softc; 2931 2932 /* If we do not support (*config)() save us the work. */ 2933 if (lhw->ops->config == NULL) 2934 return; 2935 2936 /* If we have a hw_scan running do not switch channels. */ 2937 LKPI_80211_LHW_SCAN_LOCK(lhw); 2938 hw_scan_running = 2939 (lhw->scan_flags & (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW)) == 2940 (LKPI_LHW_SCAN_RUNNING|LKPI_LHW_SCAN_HW); 2941 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 2942 if (hw_scan_running) 2943 return; 2944 2945 c = ic->ic_curchan; 2946 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2947 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2948 c, lhw->ops->config); 2949 return; 2950 } 2951 2952 chan = lkpi_find_lkpi80211_chan(lhw, c); 2953 if (chan == NULL) { 2954 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2955 c, chan); 2956 return; 2957 } 2958 2959 /* XXX max power for scanning? */ 2960 IMPROVE(); 2961 2962 hw = LHW_TO_HW(lhw); 2963 cfg80211_chandef_create(&hw->conf.chandef, chan, 2964 NL80211_CHAN_NO_HT); 2965 2966 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2967 if (error != 0 && error != EOPNOTSUPP) { 2968 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2969 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2970 /* XXX should we unroll to the previous chandef? */ 2971 IMPROVE(); 2972 } else { 2973 /* Update radiotap channels as well. */ 2974 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2975 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2976 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2977 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2978 } 2979 2980 /* Currently PS is hard coded off! Not sure it belongs here. */ 2981 IMPROVE(); 2982 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2983 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2984 hw->conf.flags &= ~IEEE80211_CONF_PS; 2985 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2986 if (error != 0 && error != EOPNOTSUPP) 2987 ic_printf(ic, "ERROR: %s: config %#0x returned " 2988 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2989 error); 2990 } 2991 } 2992 2993 static struct ieee80211_node * 2994 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2995 const uint8_t mac[IEEE80211_ADDR_LEN]) 2996 { 2997 struct ieee80211com *ic; 2998 struct lkpi_hw *lhw; 2999 struct ieee80211_node *ni; 3000 struct ieee80211_hw *hw; 3001 struct lkpi_sta *lsta; 3002 3003 ic = vap->iv_ic; 3004 lhw = ic->ic_softc; 3005 3006 /* We keep allocations de-coupled so we can deal with the two worlds. */ 3007 if (lhw->ic_node_alloc == NULL) 3008 return (NULL); 3009 3010 ni = lhw->ic_node_alloc(vap, mac); 3011 if (ni == NULL) 3012 return (NULL); 3013 3014 hw = LHW_TO_HW(lhw); 3015 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 3016 if (lsta == NULL) { 3017 if (lhw->ic_node_free != NULL) 3018 lhw->ic_node_free(ni); 3019 return (NULL); 3020 } 3021 3022 return (ni); 3023 } 3024 3025 static int 3026 lkpi_ic_node_init(struct ieee80211_node *ni) 3027 { 3028 struct ieee80211com *ic; 3029 struct lkpi_hw *lhw; 3030 struct lkpi_sta *lsta; 3031 int error; 3032 3033 ic = ni->ni_ic; 3034 lhw = ic->ic_softc; 3035 3036 if (lhw->ic_node_init != NULL) { 3037 error = lhw->ic_node_init(ni); 3038 if (error != 0) 3039 return (error); 3040 } 3041 3042 lsta = ni->ni_drv_data; 3043 3044 /* Now take the reference before linking it to the table. */ 3045 lsta->ni = ieee80211_ref_node(ni); 3046 3047 /* XXX-BZ Sync other state over. */ 3048 IMPROVE(); 3049 3050 return (0); 3051 } 3052 3053 static void 3054 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 3055 { 3056 struct ieee80211com *ic; 3057 struct lkpi_hw *lhw; 3058 3059 ic = ni->ni_ic; 3060 lhw = ic->ic_softc; 3061 3062 /* XXX-BZ remove from driver, ... */ 3063 IMPROVE(); 3064 3065 if (lhw->ic_node_cleanup != NULL) 3066 lhw->ic_node_cleanup(ni); 3067 } 3068 3069 static void 3070 lkpi_ic_node_free(struct ieee80211_node *ni) 3071 { 3072 struct ieee80211com *ic; 3073 struct lkpi_hw *lhw; 3074 struct lkpi_sta *lsta; 3075 3076 ic = ni->ni_ic; 3077 lhw = ic->ic_softc; 3078 lsta = ni->ni_drv_data; 3079 if (lsta == NULL) 3080 goto out; 3081 3082 /* XXX-BZ free resources, ... */ 3083 IMPROVE(); 3084 3085 /* Flush mbufq (make sure to release ni refs!). */ 3086 #ifdef __notyet__ 3087 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 3088 __func__, lsta, mbufq_len(&lsta->txq))); 3089 #endif 3090 /* Drain taskq. */ 3091 3092 /* Drain sta->txq[] */ 3093 mtx_destroy(&lsta->txq_mtx); 3094 3095 /* Remove lsta if added_to_drv. */ 3096 3097 /* Remove lsta from vif */ 3098 /* Remove ref from lsta node... */ 3099 /* Free lsta. */ 3100 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 3101 3102 out: 3103 if (lhw->ic_node_free != NULL) 3104 lhw->ic_node_free(ni); 3105 } 3106 3107 static int 3108 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3109 const struct ieee80211_bpf_params *params __unused) 3110 { 3111 struct lkpi_sta *lsta; 3112 3113 lsta = ni->ni_drv_data; 3114 3115 /* Queue the packet and enqueue the task to handle it. */ 3116 LKPI_80211_LSTA_LOCK(lsta); 3117 mbufq_enqueue(&lsta->txq, m); 3118 LKPI_80211_LSTA_UNLOCK(lsta); 3119 3120 #ifdef LINUXKPI_DEBUG_80211 3121 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3122 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 3123 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 3124 mbufq_len(&lsta->txq)); 3125 #endif 3126 3127 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 3128 return (0); 3129 } 3130 3131 static void 3132 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 3133 { 3134 struct ieee80211_node *ni; 3135 #ifndef LKPI_80211_HW_CRYPTO 3136 struct ieee80211_frame *wh; 3137 #endif 3138 struct ieee80211_key *k; 3139 struct sk_buff *skb; 3140 struct ieee80211com *ic; 3141 struct lkpi_hw *lhw; 3142 struct ieee80211_hw *hw; 3143 struct lkpi_vif *lvif; 3144 struct ieee80211_vif *vif; 3145 struct ieee80211_channel *c; 3146 struct ieee80211_tx_control control; 3147 struct ieee80211_tx_info *info; 3148 struct ieee80211_sta *sta; 3149 struct ieee80211_hdr *hdr; 3150 void *buf; 3151 uint8_t ac, tid; 3152 3153 M_ASSERTPKTHDR(m); 3154 #ifdef LINUXKPI_DEBUG_80211 3155 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 3156 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 3157 #endif 3158 3159 ni = lsta->ni; 3160 k = NULL; 3161 #ifndef LKPI_80211_HW_CRYPTO 3162 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 3163 wh = mtod(m, struct ieee80211_frame *); 3164 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 3165 /* Retrieve key for TX && do software encryption. */ 3166 k = ieee80211_crypto_encap(ni, m); 3167 if (k == NULL) { 3168 ieee80211_free_node(ni); 3169 m_freem(m); 3170 return; 3171 } 3172 } 3173 #endif 3174 3175 ic = ni->ni_ic; 3176 lhw = ic->ic_softc; 3177 hw = LHW_TO_HW(lhw); 3178 c = ni->ni_chan; 3179 3180 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 3181 struct lkpi_radiotap_tx_hdr *rtap; 3182 3183 rtap = &lhw->rtap_tx; 3184 rtap->wt_flags = 0; 3185 if (k != NULL) 3186 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3187 if (m->m_flags & M_FRAG) 3188 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 3189 IMPROVE(); 3190 rtap->wt_rate = 0; 3191 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 3192 rtap->wt_chan_freq = htole16(c->ic_freq); 3193 rtap->wt_chan_flags = htole16(c->ic_flags); 3194 } 3195 3196 ieee80211_radiotap_tx(ni->ni_vap, m); 3197 } 3198 3199 /* 3200 * net80211 should handle hw->extra_tx_headroom. 3201 * Though for as long as we are copying we don't mind. 3202 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 3203 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 3204 */ 3205 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 3206 if (skb == NULL) { 3207 ic_printf(ic, "ERROR %s: skb alloc failed\n", __func__); 3208 ieee80211_free_node(ni); 3209 m_freem(m); 3210 return; 3211 } 3212 skb_reserve(skb, hw->extra_tx_headroom); 3213 3214 /* XXX-BZ we need a SKB version understanding mbuf. */ 3215 /* Save the mbuf for ieee80211_tx_complete(). */ 3216 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 3217 skb->m = m; 3218 #if 0 3219 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 3220 #else 3221 buf = skb_put(skb, m->m_pkthdr.len); 3222 m_copydata(m, 0, m->m_pkthdr.len, buf); 3223 #endif 3224 /* Save the ni. */ 3225 m->m_pkthdr.PH_loc.ptr = ni; 3226 3227 lvif = VAP_TO_LVIF(ni->ni_vap); 3228 vif = LVIF_TO_VIF(lvif); 3229 3230 hdr = (void *)skb->data; 3231 tid = linuxkpi_ieee80211_get_tid(hdr, true); 3232 if (tid == IEEE80211_NONQOS_TID) { /* == IEEE80211_NUM_TIDS */ 3233 skb->priority = 0; 3234 ac = IEEE80211_AC_BE; 3235 } else { 3236 skb->priority = tid & IEEE80211_QOS_CTL_TID_MASK; 3237 ac = tid_to_mac80211_ac[tid & 7]; 3238 } 3239 skb_set_queue_mapping(skb, ac); 3240 3241 info = IEEE80211_SKB_CB(skb); 3242 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 3243 /* Slight delay; probably only happens on scanning so fine? */ 3244 if (c == NULL || c == IEEE80211_CHAN_ANYC) 3245 c = ic->ic_curchan; 3246 info->band = lkpi_net80211_chan_to_nl80211_band(c); 3247 info->hw_queue = vif->hw_queue[ac]; 3248 if (m->m_flags & M_EAPOL) 3249 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 3250 info->control.vif = vif; 3251 /* XXX-BZ info->control.rates */ 3252 3253 lsta = lkpi_find_lsta_by_ni(lvif, ni); 3254 if (lsta != NULL) { 3255 sta = LSTA_TO_STA(lsta); 3256 #ifdef LKPI_80211_HW_CRYPTO 3257 info->control.hw_key = lsta->kc; 3258 #endif 3259 } else { 3260 sta = NULL; 3261 } 3262 3263 IMPROVE(); 3264 3265 if (sta != NULL) { 3266 struct lkpi_txq *ltxq; 3267 3268 ltxq = NULL; 3269 if (!ieee80211_is_data_present(hdr->frame_control)) { 3270 if (vif->type == NL80211_IFTYPE_STATION && 3271 lsta->added_to_drv && 3272 sta->txq[IEEE80211_NUM_TIDS] != NULL) 3273 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3274 } else if (lsta->added_to_drv && 3275 sta->txq[skb->priority] != NULL) { 3276 ltxq = TXQ_TO_LTXQ(sta->txq[skb->priority]); 3277 } 3278 if (ltxq == NULL) 3279 goto ops_tx; 3280 3281 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3282 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3283 3284 skb_queue_tail(<xq->skbq, skb); 3285 #ifdef LINUXKPI_DEBUG_80211 3286 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3287 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3288 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3289 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3290 __func__, __LINE__, 3291 curthread->td_tid, (unsigned int)ticks, 3292 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3293 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3294 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3295 #endif 3296 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3297 return; 3298 } 3299 3300 ops_tx: 3301 #ifdef LINUXKPI_DEBUG_80211 3302 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3303 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3304 "TX ac %d prio %u qmap %u\n", 3305 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3306 skb, ac, skb->priority, skb->qmap); 3307 #endif 3308 memset(&control, 0, sizeof(control)); 3309 control.sta = sta; 3310 3311 lkpi_80211_mo_tx(hw, &control, skb); 3312 return; 3313 } 3314 3315 static void 3316 lkpi_80211_txq_task(void *ctx, int pending) 3317 { 3318 struct lkpi_sta *lsta; 3319 struct mbufq mq; 3320 struct mbuf *m; 3321 3322 lsta = ctx; 3323 3324 #ifdef LINUXKPI_DEBUG_80211 3325 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3326 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3327 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3328 pending, mbufq_len(&lsta->txq)); 3329 #endif 3330 3331 mbufq_init(&mq, IFQ_MAXLEN); 3332 3333 LKPI_80211_LSTA_LOCK(lsta); 3334 mbufq_concat(&mq, &lsta->txq); 3335 LKPI_80211_LSTA_UNLOCK(lsta); 3336 3337 m = mbufq_dequeue(&mq); 3338 while (m != NULL) { 3339 lkpi_80211_txq_tx_one(lsta, m); 3340 m = mbufq_dequeue(&mq); 3341 } 3342 } 3343 3344 static int 3345 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3346 { 3347 3348 /* XXX TODO */ 3349 IMPROVE(); 3350 3351 /* Quick and dirty cheating hack. */ 3352 struct ieee80211_node *ni; 3353 3354 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3355 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3356 } 3357 3358 static void 3359 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3360 int *n, struct ieee80211_channel *c) 3361 { 3362 struct lkpi_hw *lhw; 3363 struct ieee80211_hw *hw; 3364 struct linuxkpi_ieee80211_channel *channels; 3365 uint8_t bands[IEEE80211_MODE_BYTES]; 3366 int chan_flags, error, i, nchans; 3367 3368 /* Channels */ 3369 lhw = ic->ic_softc; 3370 hw = LHW_TO_HW(lhw); 3371 3372 /* NL80211_BAND_2GHZ */ 3373 nchans = 0; 3374 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3375 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3376 if (nchans > 0) { 3377 memset(bands, 0, sizeof(bands)); 3378 chan_flags = 0; 3379 setbit(bands, IEEE80211_MODE_11B); 3380 /* XXX-BZ unclear how to check for 11g. */ 3381 setbit(bands, IEEE80211_MODE_11G); 3382 #ifdef __notyet__ 3383 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3384 setbit(bands, IEEE80211_MODE_11NG); 3385 chan_flags |= NET80211_CBW_FLAG_HT40; 3386 } 3387 #endif 3388 3389 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3390 for (i = 0; i < nchans && *n < maxchan; i++) { 3391 uint32_t nflags = 0; 3392 int cflags = chan_flags; 3393 3394 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3395 ic_printf(ic, "%s: Skipping disabled chan " 3396 "[%u/%u/%#x]\n", __func__, 3397 channels[i].hw_value, 3398 channels[i].center_freq, channels[i].flags); 3399 continue; 3400 } 3401 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3402 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3403 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3404 nflags |= IEEE80211_CHAN_DFS; 3405 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3406 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3407 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3408 cflags &= ~NET80211_CBW_FLAG_VHT80; 3409 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3410 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3411 cflags &= ~NET80211_CBW_FLAG_HT40; 3412 3413 error = ieee80211_add_channel_cbw(c, maxchan, n, 3414 channels[i].hw_value, channels[i].center_freq, 3415 channels[i].max_power, 3416 nflags, bands, chan_flags); 3417 /* net80211::ENOBUFS: *n >= maxchans */ 3418 if (error != 0 && error != ENOBUFS) 3419 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3420 "returned error %d\n", 3421 __func__, channels[i].hw_value, 3422 channels[i].center_freq, channels[i].flags, 3423 nflags, chan_flags, cflags, error); 3424 if (error != 0) 3425 break; 3426 } 3427 } 3428 3429 /* NL80211_BAND_5GHZ */ 3430 nchans = 0; 3431 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3432 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3433 if (nchans > 0) { 3434 memset(bands, 0, sizeof(bands)); 3435 chan_flags = 0; 3436 setbit(bands, IEEE80211_MODE_11A); 3437 #ifdef __not_yet__ 3438 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3439 setbit(bands, IEEE80211_MODE_11NA); 3440 chan_flags |= NET80211_CBW_FLAG_HT40; 3441 } 3442 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3443 3444 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3445 ic->ic_vhtcaps = 3446 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3447 3448 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3449 chan_flags |= NET80211_CBW_FLAG_VHT80; 3450 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3451 ic->ic_vhtcaps)) 3452 chan_flags |= NET80211_CBW_FLAG_VHT160; 3453 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3454 ic->ic_vhtcaps)) 3455 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3456 } 3457 #endif 3458 3459 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3460 for (i = 0; i < nchans && *n < maxchan; i++) { 3461 uint32_t nflags = 0; 3462 int cflags = chan_flags; 3463 3464 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3465 ic_printf(ic, "%s: Skipping disabled chan " 3466 "[%u/%u/%#x]\n", __func__, 3467 channels[i].hw_value, 3468 channels[i].center_freq, channels[i].flags); 3469 continue; 3470 } 3471 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3472 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3473 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3474 nflags |= IEEE80211_CHAN_DFS; 3475 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3476 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3477 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3478 cflags &= ~NET80211_CBW_FLAG_VHT80; 3479 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3480 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3481 cflags &= ~NET80211_CBW_FLAG_HT40; 3482 3483 error = ieee80211_add_channel_cbw(c, maxchan, n, 3484 channels[i].hw_value, channels[i].center_freq, 3485 channels[i].max_power, 3486 nflags, bands, chan_flags); 3487 /* net80211::ENOBUFS: *n >= maxchans */ 3488 if (error != 0 && error != ENOBUFS) 3489 ic_printf(ic, "%s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3490 "returned error %d\n", 3491 __func__, channels[i].hw_value, 3492 channels[i].center_freq, channels[i].flags, 3493 nflags, chan_flags, cflags, error); 3494 if (error != 0) 3495 break; 3496 } 3497 } 3498 } 3499 3500 static void * 3501 lkpi_ieee80211_ifalloc(void) 3502 { 3503 struct ieee80211com *ic; 3504 3505 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3506 if (ic == NULL) 3507 return (NULL); 3508 3509 /* Setting these happens later when we have device information. */ 3510 ic->ic_softc = NULL; 3511 ic->ic_name = "linuxkpi"; 3512 3513 return (ic); 3514 } 3515 3516 struct ieee80211_hw * 3517 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3518 { 3519 struct ieee80211_hw *hw; 3520 struct lkpi_hw *lhw; 3521 struct wiphy *wiphy; 3522 int ac; 3523 3524 /* Get us and the driver data also allocated. */ 3525 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3526 if (wiphy == NULL) 3527 return (NULL); 3528 3529 lhw = wiphy_priv(wiphy); 3530 lhw->ops = ops; 3531 3532 LKPI_80211_LHW_LOCK_INIT(lhw); 3533 LKPI_80211_LHW_SCAN_LOCK_INIT(lhw); 3534 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3535 TAILQ_INIT(&lhw->lvif_head); 3536 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3537 lhw->txq_generation[ac] = 1; 3538 TAILQ_INIT(&lhw->scheduled_txqs[ac]); 3539 } 3540 3541 /* 3542 * XXX-BZ TODO make sure there is a "_null" function to all ops 3543 * not initialized. 3544 */ 3545 hw = LHW_TO_HW(lhw); 3546 hw->wiphy = wiphy; 3547 hw->conf.flags |= IEEE80211_CONF_IDLE; 3548 hw->priv = (void *)(lhw + 1); 3549 3550 /* BSD Specific. */ 3551 lhw->ic = lkpi_ieee80211_ifalloc(); 3552 if (lhw->ic == NULL) { 3553 ieee80211_free_hw(hw); 3554 return (NULL); 3555 } 3556 3557 IMPROVE(); 3558 3559 return (hw); 3560 } 3561 3562 void 3563 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3564 { 3565 struct lkpi_hw *lhw; 3566 3567 lhw = HW_TO_LHW(hw); 3568 free(lhw->ic, M_LKPI80211); 3569 lhw->ic = NULL; 3570 3571 /* Cleanup more of lhw here or in wiphy_free()? */ 3572 sx_destroy(&lhw->lvif_sx); 3573 LKPI_80211_LHW_LOCK_DESTROY(lhw); 3574 LKPI_80211_LHW_SCAN_LOCK_DESTROY(lhw); 3575 IMPROVE(); 3576 } 3577 3578 void 3579 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3580 { 3581 struct lkpi_hw *lhw; 3582 struct ieee80211com *ic; 3583 3584 lhw = HW_TO_LHW(hw); 3585 ic = lhw->ic; 3586 3587 /* Now set a proper name before ieee80211_ifattach(). */ 3588 ic->ic_softc = lhw; 3589 ic->ic_name = name; 3590 3591 /* XXX-BZ do we also need to set wiphy name? */ 3592 } 3593 3594 struct ieee80211_hw * 3595 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3596 { 3597 struct lkpi_hw *lhw; 3598 3599 lhw = wiphy_priv(wiphy); 3600 return (LHW_TO_HW(lhw)); 3601 } 3602 3603 static void 3604 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3605 { 3606 struct ieee80211com *ic; 3607 3608 ic = lhw->ic; 3609 ieee80211_radiotap_attach(ic, 3610 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3611 LKPI_RTAP_TX_FLAGS_PRESENT, 3612 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3613 LKPI_RTAP_RX_FLAGS_PRESENT); 3614 } 3615 3616 int 3617 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3618 { 3619 struct ieee80211com *ic; 3620 struct lkpi_hw *lhw; 3621 int band, i; 3622 3623 lhw = HW_TO_LHW(hw); 3624 ic = lhw->ic; 3625 3626 /* We do it this late as wiphy->dev should be set for the name. */ 3627 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3628 if (lhw->workq == NULL) 3629 return (-EAGAIN); 3630 3631 /* XXX-BZ figure this out how they count his... */ 3632 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3633 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3634 hw->wiphy->perm_addr); 3635 } else if (hw->wiphy->n_addresses > 0) { 3636 /* We take the first one. */ 3637 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3638 hw->wiphy->addresses[0].addr); 3639 } else { 3640 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3641 } 3642 3643 #ifdef __not_yet__ 3644 /* See comment in lkpi_80211_txq_tx_one(). */ 3645 ic->ic_headroom = hw->extra_tx_headroom; 3646 #endif 3647 3648 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3649 ic->ic_opmode = IEEE80211_M_STA; 3650 3651 /* Set device capabilities. */ 3652 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3653 ic->ic_caps = 3654 IEEE80211_C_STA | 3655 IEEE80211_C_MONITOR | 3656 IEEE80211_C_WPA | /* WPA/RSN */ 3657 #ifdef LKPI_80211_WME 3658 IEEE80211_C_WME | 3659 #endif 3660 #if 0 3661 IEEE80211_C_PMGT | 3662 #endif 3663 IEEE80211_C_SHSLOT | /* short slot time supported */ 3664 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3665 ; 3666 #if 0 3667 /* Scanning is a different kind of beast to re-work. */ 3668 ic->ic_caps |= IEEE80211_C_BGSCAN; 3669 #endif 3670 if (lhw->ops->hw_scan) { 3671 /* 3672 * Advertise full-offload scanning. 3673 * 3674 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3675 * we essentially disable hw_scan for all drivers not setting 3676 * the flag. 3677 */ 3678 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3679 lhw->scan_flags |= LKPI_LHW_SCAN_HW; 3680 } 3681 3682 #ifdef __notyet__ 3683 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3684 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3685 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3686 | IEEE80211_HTCAP_MAXAMSDU_3839 3687 /* max A-MSDU length */ 3688 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3689 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3690 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3691 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3692 #endif 3693 3694 /* 3695 * The wiphy variables report bitmasks of avail antennas. 3696 * (*get_antenna) get the current bitmask sets which can be 3697 * altered by (*set_antenna) for some drivers. 3698 * XXX-BZ will the count alone do us much good long-term in net80211? 3699 */ 3700 if (hw->wiphy->available_antennas_rx || 3701 hw->wiphy->available_antennas_tx) { 3702 uint32_t rxs, txs; 3703 3704 if (lkpi_80211_mo_get_antenna(hw, &txs, &rxs) == 0) { 3705 ic->ic_rxstream = bitcount32(rxs); 3706 ic->ic_txstream = bitcount32(txs); 3707 } 3708 } 3709 3710 ic->ic_cryptocaps = 0; 3711 #ifdef LKPI_80211_HW_CRYPTO 3712 if (hw->wiphy->n_cipher_suites > 0) { 3713 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3714 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3715 hw->wiphy->cipher_suites[i]); 3716 } 3717 #endif 3718 3719 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3720 ic->ic_channels); 3721 3722 ieee80211_ifattach(ic); 3723 3724 ic->ic_update_mcast = lkpi_ic_update_mcast; 3725 ic->ic_update_promisc = lkpi_ic_update_promisc; 3726 ic->ic_update_chw = lkpi_ic_update_chw; 3727 ic->ic_parent = lkpi_ic_parent; 3728 ic->ic_scan_start = lkpi_ic_scan_start; 3729 ic->ic_scan_end = lkpi_ic_scan_end; 3730 ic->ic_set_channel = lkpi_ic_set_channel; 3731 ic->ic_transmit = lkpi_ic_transmit; 3732 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3733 ic->ic_vap_create = lkpi_ic_vap_create; 3734 ic->ic_vap_delete = lkpi_ic_vap_delete; 3735 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3736 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3737 3738 lhw->ic_scan_curchan = ic->ic_scan_curchan; 3739 ic->ic_scan_curchan = lkpi_ic_scan_curchan; 3740 lhw->ic_scan_mindwell = ic->ic_scan_mindwell; 3741 ic->ic_scan_mindwell = lkpi_ic_scan_mindwell; 3742 3743 lhw->ic_node_alloc = ic->ic_node_alloc; 3744 ic->ic_node_alloc = lkpi_ic_node_alloc; 3745 lhw->ic_node_init = ic->ic_node_init; 3746 ic->ic_node_init = lkpi_ic_node_init; 3747 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3748 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3749 lhw->ic_node_free = ic->ic_node_free; 3750 ic->ic_node_free = lkpi_ic_node_free; 3751 3752 lkpi_radiotap_attach(lhw); 3753 3754 /* 3755 * Assign the first possible channel for now; seems Realtek drivers 3756 * expect one. 3757 * Also remember the amount of bands we support and the most rates 3758 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3759 */ 3760 lhw->supbands = lhw->max_rates = 0; 3761 for (band = 0; band < NUM_NL80211_BANDS && 3762 hw->conf.chandef.chan == NULL; band++) { 3763 struct ieee80211_supported_band *supband; 3764 struct linuxkpi_ieee80211_channel *channels; 3765 3766 supband = hw->wiphy->bands[band]; 3767 if (supband == NULL || supband->n_channels == 0) 3768 continue; 3769 3770 lhw->supbands++; 3771 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3772 3773 channels = supband->channels; 3774 for (i = 0; i < supband->n_channels; i++) { 3775 3776 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3777 continue; 3778 3779 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3780 NL80211_CHAN_NO_HT); 3781 break; 3782 } 3783 } 3784 3785 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3786 3787 /* Make sure we do not support more than net80211 is willing to take. */ 3788 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3789 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3790 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3791 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3792 } 3793 3794 /* 3795 * The maximum supported bitrates on any band + size for 3796 * DSSS Parameter Set give our per-band IE size. 3797 * XXX-BZ FIXME add HT VHT ... later 3798 * SSID is the responsibility of the driver and goes on the side. 3799 * The user specified bits coming from the vap go into the 3800 * "common ies" fields. 3801 */ 3802 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3803 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3804 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3805 /* 3806 * net80211 does not seem to support the DSSS Parameter Set but some of 3807 * the drivers insert it so calculate the extra fixed space in. 3808 */ 3809 lhw->scan_ie_len += 2 + 1; 3810 3811 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3812 if (hw->wiphy->max_scan_ie_len > 0) 3813 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3814 3815 if (bootverbose) 3816 ieee80211_announce(ic); 3817 3818 return (0); 3819 } 3820 3821 void 3822 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3823 { 3824 struct lkpi_hw *lhw; 3825 struct ieee80211com *ic; 3826 3827 lhw = HW_TO_LHW(hw); 3828 ic = lhw->ic; 3829 ieee80211_ifdetach(ic); 3830 } 3831 3832 void 3833 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3834 enum ieee80211_iface_iter flags, 3835 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3836 void *arg) 3837 { 3838 struct lkpi_hw *lhw; 3839 struct lkpi_vif *lvif; 3840 struct ieee80211_vif *vif; 3841 bool active, atomic, nin_drv; 3842 3843 lhw = HW_TO_LHW(hw); 3844 3845 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3846 IEEE80211_IFACE_ITER_RESUME_ALL| 3847 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3848 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3849 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3850 __func__, flags); 3851 } 3852 3853 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3854 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3855 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3856 3857 if (atomic) 3858 LKPI_80211_LHW_LVIF_LOCK(lhw); 3859 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3860 struct ieee80211vap *vap; 3861 3862 vif = LVIF_TO_VIF(lvif); 3863 3864 /* 3865 * If we want "active" interfaces, we need to distinguish on 3866 * whether the driver knows about them or not to be able to 3867 * handle the "resume" case correctly. Skip the ones the 3868 * driver does not know about. 3869 */ 3870 if (active && !lvif->added_to_drv && 3871 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3872 continue; 3873 3874 /* 3875 * If we shall skip interfaces not added to the driver do so 3876 * if we haven't yet. 3877 */ 3878 if (nin_drv && !lvif->added_to_drv) 3879 continue; 3880 3881 /* 3882 * Run the iterator function if we are either not asking 3883 * asking for active only or if the VAP is "running". 3884 */ 3885 /* XXX-BZ probably should have state in the lvif as well. */ 3886 vap = LVIF_TO_VAP(lvif); 3887 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3888 iterfunc(arg, vif->addr, vif); 3889 } 3890 if (atomic) 3891 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3892 } 3893 3894 void 3895 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3896 struct ieee80211_vif *vif, 3897 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3898 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3899 void *arg) 3900 { 3901 3902 UNIMPLEMENTED; 3903 } 3904 3905 void 3906 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3907 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3908 void *), 3909 void *arg) 3910 { 3911 3912 UNIMPLEMENTED; 3913 } 3914 3915 void 3916 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3917 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3918 { 3919 struct lkpi_hw *lhw; 3920 struct lkpi_vif *lvif; 3921 struct lkpi_sta *lsta; 3922 struct ieee80211_sta *sta; 3923 3924 KASSERT(hw != NULL && iterfunc != NULL, 3925 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3926 3927 lhw = HW_TO_LHW(hw); 3928 3929 LKPI_80211_LHW_LVIF_LOCK(lhw); 3930 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3931 3932 LKPI_80211_LVIF_LOCK(lvif); 3933 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3934 if (!lsta->added_to_drv) 3935 continue; 3936 sta = LSTA_TO_STA(lsta); 3937 iterfunc(arg, sta); 3938 } 3939 LKPI_80211_LVIF_UNLOCK(lvif); 3940 } 3941 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3942 } 3943 3944 int 3945 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3946 struct linuxkpi_ieee80211_regdomain *regd) 3947 { 3948 struct lkpi_hw *lhw; 3949 struct ieee80211com *ic; 3950 struct ieee80211_regdomain *rd; 3951 3952 lhw = wiphy_priv(wiphy); 3953 ic = lhw->ic; 3954 3955 rd = &ic->ic_regdomain; 3956 if (rd->isocc[0] == '\0') { 3957 rd->isocc[0] = regd->alpha2[0]; 3958 rd->isocc[1] = regd->alpha2[1]; 3959 } 3960 3961 TODO(); 3962 /* XXX-BZ finish the rest. */ 3963 3964 return (0); 3965 } 3966 3967 void 3968 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3969 struct cfg80211_scan_info *info) 3970 { 3971 struct lkpi_hw *lhw; 3972 struct ieee80211com *ic; 3973 struct ieee80211_scan_state *ss; 3974 3975 lhw = wiphy_priv(hw->wiphy); 3976 ic = lhw->ic; 3977 ss = ic->ic_scan; 3978 3979 ieee80211_scan_done(ss->ss_vap); 3980 3981 LKPI_80211_LHW_SCAN_LOCK(lhw); 3982 free(lhw->hw_req, M_LKPI80211); 3983 lhw->hw_req = NULL; 3984 lhw->scan_flags &= ~LKPI_LHW_SCAN_RUNNING; 3985 wakeup(lhw); 3986 LKPI_80211_LHW_SCAN_UNLOCK(lhw); 3987 3988 return; 3989 } 3990 3991 /* For %list see comment towards the end of the function. */ 3992 void 3993 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3994 struct ieee80211_sta *sta, struct napi_struct *napi __unused, 3995 struct list_head *list __unused) 3996 { 3997 struct epoch_tracker et; 3998 struct lkpi_hw *lhw; 3999 struct ieee80211com *ic; 4000 struct mbuf *m; 4001 struct skb_shared_info *shinfo; 4002 struct ieee80211_rx_status *rx_status; 4003 struct ieee80211_rx_stats rx_stats; 4004 struct ieee80211_node *ni; 4005 struct ieee80211vap *vap; 4006 struct ieee80211_hdr *hdr; 4007 struct lkpi_sta *lsta; 4008 int i, offset, ok; 4009 int8_t rssi; 4010 bool is_beacon; 4011 4012 if (skb->len < 2) { 4013 /* Need 80211 stats here. */ 4014 IMPROVE(); 4015 goto err; 4016 } 4017 4018 /* 4019 * For now do the data copy; we can later improve things. Might even 4020 * have an mbuf backing the skb data then? 4021 */ 4022 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 4023 if (m == NULL) 4024 goto err; 4025 m_copyback(m, 0, skb->tail - skb->data, skb->data); 4026 4027 shinfo = skb_shinfo(skb); 4028 offset = m->m_len; 4029 for (i = 0; i < shinfo->nr_frags; i++) { 4030 m_copyback(m, offset, shinfo->frags[i].size, 4031 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 4032 shinfo->frags[i].offset); 4033 offset += shinfo->frags[i].size; 4034 } 4035 4036 rx_status = IEEE80211_SKB_RXCB(skb); 4037 4038 hdr = (void *)skb->data; 4039 is_beacon = ieee80211_is_beacon(hdr->frame_control); 4040 4041 #ifdef LINUXKPI_DEBUG_80211 4042 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 4043 goto no_trace_beacons; 4044 4045 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4046 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 4047 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 4048 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 4049 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 4050 shinfo, shinfo->nr_frags, 4051 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 4052 4053 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 4054 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 4055 4056 /* Implement a dump_rxcb() !!! */ 4057 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4058 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 4059 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 4060 __func__, 4061 (uintmax_t)rx_status->boottime_ns, 4062 (uintmax_t)rx_status->mactime, 4063 rx_status->device_timestamp, 4064 rx_status->flag, 4065 rx_status->freq, 4066 rx_status->bw, 4067 rx_status->encoding, 4068 rx_status->ampdu_reference, 4069 rx_status->band, 4070 rx_status->chains, 4071 rx_status->chain_signal[0], 4072 rx_status->chain_signal[1], 4073 rx_status->chain_signal[2], 4074 rx_status->chain_signal[3], 4075 rx_status->signal, 4076 rx_status->enc_flags, 4077 rx_status->he_dcm, 4078 rx_status->he_gi, 4079 rx_status->he_ru, 4080 rx_status->zero_length_psdu_type, 4081 rx_status->nss, 4082 rx_status->rate_idx); 4083 no_trace_beacons: 4084 #endif 4085 4086 memset(&rx_stats, 0, sizeof(rx_stats)); 4087 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 4088 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 4089 rx_stats.c_nf = -96; 4090 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 4091 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 4092 rssi = rx_status->signal; 4093 else 4094 rssi = rx_stats.c_nf; 4095 /* 4096 * net80211 signal strength data are in .5 dBm units relative to 4097 * the current noise floor (see comment in ieee80211_node.h). 4098 */ 4099 rssi -= rx_stats.c_nf; 4100 rx_stats.c_rssi = rssi * 2; 4101 rx_stats.r_flags |= IEEE80211_R_BAND; 4102 rx_stats.c_band = 4103 lkpi_nl80211_band_to_net80211_band(rx_status->band); 4104 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 4105 rx_stats.c_freq = rx_status->freq; 4106 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 4107 4108 /* XXX (*sta_statistics)() to get to some of that? */ 4109 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 4110 4111 lhw = HW_TO_LHW(hw); 4112 ic = lhw->ic; 4113 4114 ok = ieee80211_add_rx_params(m, &rx_stats); 4115 if (ok == 0) { 4116 m_freem(m); 4117 counter_u64_add(ic->ic_ierrors, 1); 4118 goto err; 4119 } 4120 4121 if (sta != NULL) { 4122 lsta = STA_TO_LSTA(sta); 4123 ni = ieee80211_ref_node(lsta->ni); 4124 } else { 4125 struct ieee80211_frame_min *wh; 4126 4127 wh = mtod(m, struct ieee80211_frame_min *); 4128 ni = ieee80211_find_rxnode(ic, wh); 4129 if (ni != NULL) 4130 lsta = ni->ni_drv_data; 4131 } 4132 4133 if (ni != NULL) 4134 vap = ni->ni_vap; 4135 else 4136 /* 4137 * XXX-BZ can we improve this by looking at the frame hdr 4138 * or other meta-data passed up? 4139 */ 4140 vap = TAILQ_FIRST(&ic->ic_vaps); 4141 4142 #ifdef LINUXKPI_DEBUG_80211 4143 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4144 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 4145 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 4146 ni, vap, is_beacon ? " beacon" : ""); 4147 #endif 4148 4149 if (ni != NULL && vap != NULL && is_beacon && 4150 rx_status->device_timestamp > 0 && 4151 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 4152 struct lkpi_vif *lvif; 4153 struct ieee80211_vif *vif; 4154 struct ieee80211_frame *wh; 4155 4156 wh = mtod(m, struct ieee80211_frame *); 4157 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 4158 goto skip_device_ts; 4159 4160 lvif = VAP_TO_LVIF(vap); 4161 vif = LVIF_TO_VIF(lvif); 4162 4163 IMPROVE("TIMING_BEACON_ONLY?"); 4164 /* mac80211 specific (not net80211) so keep it here. */ 4165 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 4166 /* 4167 * net80211 should take care of the other information (sync_tsf, 4168 * sync_dtim_count) as otherwise we need to parse the beacon. 4169 */ 4170 } 4171 skip_device_ts: 4172 4173 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 4174 ieee80211_radiotap_active_vap(vap)) { 4175 struct lkpi_radiotap_rx_hdr *rtap; 4176 4177 rtap = &lhw->rtap_rx; 4178 rtap->wr_tsft = rx_status->device_timestamp; 4179 rtap->wr_flags = 0; 4180 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 4181 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 4182 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 4183 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 4184 #if 0 /* .. or it does not given we strip it below. */ 4185 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4186 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 4187 #endif 4188 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 4189 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 4190 rtap->wr_rate = 0; 4191 IMPROVE(); 4192 /* XXX TODO status->encoding / rate_index / bw */ 4193 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 4194 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 4195 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 4196 rtap->wr_dbm_antsignal = rssi; 4197 rtap->wr_dbm_antnoise = rx_stats.c_nf; 4198 } 4199 4200 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 4201 m_adj(m, -IEEE80211_CRC_LEN); 4202 4203 #if 0 4204 if (list != NULL) { 4205 /* 4206 * Normally this would be queued up and delivered by 4207 * netif_receive_skb_list(), napi_gro_receive(), or the like. 4208 * See mt76::mac80211.c as only current possible consumer. 4209 */ 4210 IMPROVE("we simply pass the packet to net80211 to deal with."); 4211 } 4212 #endif 4213 4214 NET_EPOCH_ENTER(et); 4215 if (ni != NULL) { 4216 ok = ieee80211_input_mimo(ni, m); 4217 ieee80211_free_node(ni); 4218 if (ok < 0) 4219 m_freem(m); 4220 } else { 4221 ok = ieee80211_input_mimo_all(ic, m); 4222 /* mbuf got consumed. */ 4223 } 4224 NET_EPOCH_EXIT(et); 4225 4226 #ifdef LINUXKPI_DEBUG_80211 4227 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 4228 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 4229 #endif 4230 4231 IMPROVE(); 4232 4233 err: 4234 /* The skb is ours so we can free it :-) */ 4235 kfree_skb(skb); 4236 } 4237 4238 uint8_t 4239 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr, bool nonqos_ok) 4240 { 4241 const struct ieee80211_frame *wh; 4242 uint8_t tid; 4243 4244 /* Linux seems to assume this is a QOS-Data-Frame */ 4245 KASSERT(nonqos_ok || ieee80211_is_data_qos(hdr->frame_control), 4246 ("%s: hdr %p fc %#06x not qos_data\n", __func__, hdr, 4247 hdr->frame_control)); 4248 4249 wh = (const struct ieee80211_frame *)hdr; 4250 tid = ieee80211_gettid(wh); 4251 KASSERT(nonqos_ok || tid == (tid & IEEE80211_QOS_TID), ("%s: tid %u " 4252 "not expected (%u?)\n", __func__, tid, IEEE80211_NONQOS_TID)); 4253 4254 return (tid); 4255 } 4256 4257 struct wiphy * 4258 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 4259 { 4260 struct lkpi_wiphy *lwiphy; 4261 4262 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 4263 if (lwiphy == NULL) 4264 return (NULL); 4265 lwiphy->ops = ops; 4266 4267 /* XXX TODO */ 4268 return (LWIPHY_TO_WIPHY(lwiphy)); 4269 } 4270 4271 void 4272 linuxkpi_wiphy_free(struct wiphy *wiphy) 4273 { 4274 struct lkpi_wiphy *lwiphy; 4275 4276 if (wiphy == NULL) 4277 return; 4278 4279 lwiphy = WIPHY_TO_LWIPHY(wiphy); 4280 kfree(lwiphy); 4281 } 4282 4283 uint32_t 4284 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4285 enum nl80211_band band) 4286 { 4287 4288 switch (band) { 4289 case NL80211_BAND_2GHZ: 4290 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4291 break; 4292 case NL80211_BAND_5GHZ: 4293 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4294 break; 4295 default: 4296 /* XXX abort, retry, error, panic? */ 4297 break; 4298 } 4299 4300 return (0); 4301 } 4302 4303 uint32_t 4304 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4305 { 4306 4307 return (ieee80211_mhz2ieee(freq, 0)); 4308 } 4309 4310 static struct lkpi_sta * 4311 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4312 { 4313 struct lkpi_sta *lsta, *temp; 4314 4315 LKPI_80211_LVIF_LOCK(lvif); 4316 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4317 if (lsta->ni == ni) { 4318 LKPI_80211_LVIF_UNLOCK(lvif); 4319 return (lsta); 4320 } 4321 } 4322 LKPI_80211_LVIF_UNLOCK(lvif); 4323 4324 return (NULL); 4325 } 4326 4327 struct ieee80211_sta * 4328 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4329 { 4330 struct lkpi_vif *lvif; 4331 struct lkpi_sta *lsta, *temp; 4332 struct ieee80211_sta *sta; 4333 4334 lvif = VIF_TO_LVIF(vif); 4335 4336 LKPI_80211_LVIF_LOCK(lvif); 4337 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4338 sta = LSTA_TO_STA(lsta); 4339 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4340 LKPI_80211_LVIF_UNLOCK(lvif); 4341 return (sta); 4342 } 4343 } 4344 LKPI_80211_LVIF_UNLOCK(lvif); 4345 return (NULL); 4346 } 4347 4348 struct ieee80211_sta * 4349 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4350 const uint8_t *addr, const uint8_t *ourvifaddr) 4351 { 4352 struct lkpi_hw *lhw; 4353 struct lkpi_vif *lvif; 4354 struct lkpi_sta *lsta; 4355 struct ieee80211_vif *vif; 4356 struct ieee80211_sta *sta; 4357 4358 lhw = wiphy_priv(hw->wiphy); 4359 sta = NULL; 4360 4361 LKPI_80211_LHW_LVIF_LOCK(lhw); 4362 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4363 4364 /* XXX-BZ check our address from the vif. */ 4365 4366 vif = LVIF_TO_VIF(lvif); 4367 if (ourvifaddr != NULL && 4368 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4369 continue; 4370 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4371 if (sta != NULL) 4372 break; 4373 } 4374 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4375 4376 if (sta != NULL) { 4377 lsta = STA_TO_LSTA(sta); 4378 if (!lsta->added_to_drv) 4379 return (NULL); 4380 } 4381 4382 return (sta); 4383 } 4384 4385 struct sk_buff * 4386 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4387 struct ieee80211_txq *txq) 4388 { 4389 struct lkpi_txq *ltxq; 4390 struct lkpi_vif *lvif; 4391 struct sk_buff *skb; 4392 4393 skb = NULL; 4394 ltxq = TXQ_TO_LTXQ(txq); 4395 ltxq->seen_dequeue = true; 4396 4397 if (ltxq->stopped) 4398 goto stopped; 4399 4400 lvif = VIF_TO_LVIF(ltxq->txq.vif); 4401 if (lvif->hw_queue_stopped[ltxq->txq.ac]) { 4402 ltxq->stopped = true; 4403 goto stopped; 4404 } 4405 4406 skb = skb_dequeue(<xq->skbq); 4407 4408 stopped: 4409 return (skb); 4410 } 4411 4412 void 4413 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4414 unsigned long *frame_cnt, unsigned long *byte_cnt) 4415 { 4416 struct lkpi_txq *ltxq; 4417 struct sk_buff *skb; 4418 unsigned long fc, bc; 4419 4420 ltxq = TXQ_TO_LTXQ(txq); 4421 4422 fc = bc = 0; 4423 skb_queue_walk(<xq->skbq, skb) { 4424 fc++; 4425 bc += skb->len; 4426 } 4427 if (frame_cnt) 4428 *frame_cnt = fc; 4429 if (byte_cnt) 4430 *byte_cnt = bc; 4431 4432 /* Validate that this is doing the correct thing. */ 4433 /* Should we keep track on en/dequeue? */ 4434 IMPROVE(); 4435 } 4436 4437 /* 4438 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4439 * The latter tries to derive the success status from the info flags 4440 * passed back from the driver. rawx_mit() saves the ni on the m and the 4441 * m on the skb for us to be able to give feedback to net80211. 4442 */ 4443 static void 4444 _lkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4445 int status) 4446 { 4447 struct ieee80211_node *ni; 4448 struct mbuf *m; 4449 4450 m = skb->m; 4451 skb->m = NULL; 4452 4453 if (m != NULL) { 4454 ni = m->m_pkthdr.PH_loc.ptr; 4455 /* Status: 0 is ok, != 0 is error. */ 4456 ieee80211_tx_complete(ni, m, status); 4457 /* ni & mbuf were consumed. */ 4458 } 4459 } 4460 4461 void 4462 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4463 int status) 4464 { 4465 4466 _lkpi_ieee80211_free_txskb(hw, skb, status); 4467 kfree_skb(skb); 4468 } 4469 4470 void 4471 linuxkpi_ieee80211_tx_status_ext(struct ieee80211_hw *hw, 4472 struct ieee80211_tx_status *txstat) 4473 { 4474 struct sk_buff *skb; 4475 struct ieee80211_tx_info *info; 4476 struct ieee80211_ratectl_tx_status txs; 4477 struct ieee80211_node *ni; 4478 int status; 4479 4480 skb = txstat->skb; 4481 if (skb->m != NULL) { 4482 struct mbuf *m; 4483 4484 m = skb->m; 4485 ni = m->m_pkthdr.PH_loc.ptr; 4486 memset(&txs, 0, sizeof(txs)); 4487 } else { 4488 ni = NULL; 4489 } 4490 4491 info = txstat->info; 4492 if (info->flags & IEEE80211_TX_STAT_ACK) { 4493 status = 0; /* No error. */ 4494 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4495 } else { 4496 status = 1; 4497 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4498 } 4499 4500 if (ni != NULL) { 4501 int ridx __unused; 4502 #ifdef LINUXKPI_DEBUG_80211 4503 int old_rate; 4504 4505 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4506 #endif 4507 txs.pktlen = skb->len; 4508 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4509 if (info->status.rates[0].count > 1) { 4510 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4511 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4512 } 4513 #if 0 /* Unused in net80211 currently. */ 4514 /* XXX-BZ convert check .flags for MCS/VHT/.. */ 4515 txs.final_rate = info->status.rates[0].idx; 4516 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4517 #endif 4518 if (info->status.is_valid_ack_signal) { 4519 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4520 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4521 } 4522 4523 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4524 ieee80211_ratectl_tx_complete(ni, &txs); 4525 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4526 4527 #ifdef LINUXKPI_DEBUG_80211 4528 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4529 printf("TX-RATE: %s: old %d new %d ridx %d, " 4530 "long_retries %d\n", __func__, 4531 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4532 ridx, txs.long_retries); 4533 } 4534 #endif 4535 } 4536 4537 #ifdef LINUXKPI_DEBUG_80211 4538 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4539 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4540 "band %u hw_queue %u tx_time_est %d : " 4541 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4542 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4543 "tx_time %u is_valid_ack_signal %u " 4544 "status_driver_data [ %p %p ]\n", 4545 __func__, hw, skb, status, info->flags, 4546 info->band, info->hw_queue, info->tx_time_est, 4547 info->status.rates[0].idx, info->status.rates[0].count, 4548 info->status.rates[0].flags, 4549 info->status.rates[1].idx, info->status.rates[1].count, 4550 info->status.rates[1].flags, 4551 info->status.rates[2].idx, info->status.rates[2].count, 4552 info->status.rates[2].flags, 4553 info->status.rates[3].idx, info->status.rates[3].count, 4554 info->status.rates[3].flags, 4555 info->status.ack_signal, info->status.ampdu_ack_len, 4556 info->status.ampdu_len, info->status.antenna, 4557 info->status.tx_time, info->status.is_valid_ack_signal, 4558 info->status.status_driver_data[0], 4559 info->status.status_driver_data[1]); 4560 #endif 4561 4562 if (txstat->free_list) { 4563 _lkpi_ieee80211_free_txskb(hw, skb, status); 4564 list_add_tail(&skb->list, txstat->free_list); 4565 } else { 4566 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4567 } 4568 } 4569 4570 void 4571 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4572 { 4573 struct ieee80211_tx_status status; 4574 4575 memset(&status, 0, sizeof(status)); 4576 status.info = IEEE80211_SKB_CB(skb); 4577 status.skb = skb; 4578 /* sta, n_rates, rates, free_list? */ 4579 4580 ieee80211_tx_status_ext(hw, &status); 4581 } 4582 4583 /* 4584 * This is an internal bandaid for the moment for the way we glue 4585 * skbs and mbufs together for TX. Once we have skbs backed by 4586 * mbufs this should go away. 4587 * This is a public function but kept on the private KPI (lkpi_) 4588 * and is not exposed by a header file. 4589 */ 4590 static void 4591 lkpi_ieee80211_free_skb_mbuf(void *p) 4592 { 4593 struct ieee80211_node *ni; 4594 struct mbuf *m; 4595 4596 if (p == NULL) 4597 return; 4598 4599 m = (struct mbuf *)p; 4600 M_ASSERTPKTHDR(m); 4601 4602 ni = m->m_pkthdr.PH_loc.ptr; 4603 m->m_pkthdr.PH_loc.ptr = NULL; 4604 if (ni != NULL) 4605 ieee80211_free_node(ni); 4606 m_freem(m); 4607 } 4608 4609 void 4610 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4611 struct delayed_work *w, int delay) 4612 { 4613 struct lkpi_hw *lhw; 4614 4615 /* Need to make sure hw is in a stable (non-suspended) state. */ 4616 IMPROVE(); 4617 4618 lhw = HW_TO_LHW(hw); 4619 queue_delayed_work(lhw->workq, w, delay); 4620 } 4621 4622 void 4623 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4624 struct work_struct *w) 4625 { 4626 struct lkpi_hw *lhw; 4627 4628 /* Need to make sure hw is in a stable (non-suspended) state. */ 4629 IMPROVE(); 4630 4631 lhw = HW_TO_LHW(hw); 4632 queue_work(lhw->workq, w); 4633 } 4634 4635 struct sk_buff * 4636 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4637 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4638 { 4639 struct sk_buff *skb; 4640 struct ieee80211_frame *wh; 4641 uint8_t *p; 4642 size_t len; 4643 4644 len = sizeof(*wh); 4645 len += 2 + ssid_len; 4646 4647 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4648 if (skb == NULL) 4649 return (NULL); 4650 4651 skb_reserve(skb, hw->extra_tx_headroom); 4652 4653 wh = skb_put_zero(skb, sizeof(*wh)); 4654 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4655 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4656 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4657 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4658 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4659 4660 p = skb_put(skb, 2 + ssid_len); 4661 *p++ = IEEE80211_ELEMID_SSID; 4662 *p++ = ssid_len; 4663 if (ssid_len > 0) 4664 memcpy(p, ssid, ssid_len); 4665 4666 return (skb); 4667 } 4668 4669 struct sk_buff * 4670 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4671 struct ieee80211_vif *vif) 4672 { 4673 struct lkpi_vif *lvif; 4674 struct ieee80211vap *vap; 4675 struct sk_buff *skb; 4676 struct ieee80211_frame_pspoll *psp; 4677 uint16_t v; 4678 4679 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4680 if (skb == NULL) 4681 return (NULL); 4682 4683 skb_reserve(skb, hw->extra_tx_headroom); 4684 4685 lvif = VIF_TO_LVIF(vif); 4686 vap = LVIF_TO_VAP(lvif); 4687 4688 psp = skb_put_zero(skb, sizeof(*psp)); 4689 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4690 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4691 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4692 memcpy(&psp->i_aid, &v, sizeof(v)); 4693 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4694 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4695 4696 return (skb); 4697 } 4698 4699 struct sk_buff * 4700 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4701 struct ieee80211_vif *vif, bool qos) 4702 { 4703 struct lkpi_vif *lvif; 4704 struct ieee80211vap *vap; 4705 struct sk_buff *skb; 4706 struct ieee80211_frame *nullf; 4707 4708 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4709 if (skb == NULL) 4710 return (NULL); 4711 4712 skb_reserve(skb, hw->extra_tx_headroom); 4713 4714 lvif = VIF_TO_LVIF(vif); 4715 vap = LVIF_TO_VAP(lvif); 4716 4717 nullf = skb_put_zero(skb, sizeof(*nullf)); 4718 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4719 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4720 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4721 4722 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4723 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4724 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4725 4726 return (skb); 4727 } 4728 4729 struct wireless_dev * 4730 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4731 { 4732 struct lkpi_vif *lvif; 4733 4734 lvif = VIF_TO_LVIF(vif); 4735 return (&lvif->wdev); 4736 } 4737 4738 void 4739 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4740 { 4741 struct lkpi_vif *lvif; 4742 struct ieee80211vap *vap; 4743 enum ieee80211_state nstate; 4744 int arg; 4745 4746 lvif = VIF_TO_LVIF(vif); 4747 vap = LVIF_TO_VAP(lvif); 4748 4749 /* 4750 * Go to init; otherwise we need to elaborately check state and 4751 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4752 * Let the statemachine handle all neccessary changes. 4753 */ 4754 nstate = IEEE80211_S_INIT; 4755 arg = 0; /* Not a valid reason. */ 4756 4757 #ifdef LINUXKPI_DEBUG_80211 4758 if (linuxkpi_debug_80211 & D80211_TRACE) 4759 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4760 #endif 4761 ieee80211_new_state(vap, nstate, arg); 4762 } 4763 4764 void 4765 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4766 { 4767 struct lkpi_vif *lvif; 4768 struct ieee80211vap *vap; 4769 4770 lvif = VIF_TO_LVIF(vif); 4771 vap = LVIF_TO_VAP(lvif); 4772 4773 #ifdef LINUXKPI_DEBUG_80211 4774 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4775 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4776 vif, vap, ieee80211_state_name[vap->iv_state]); 4777 #endif 4778 ieee80211_beacon_miss(vap->iv_ic); 4779 } 4780 4781 /* -------------------------------------------------------------------------- */ 4782 4783 void 4784 linuxkpi_ieee80211_stop_queue(struct ieee80211_hw *hw, int qnum) 4785 { 4786 struct lkpi_hw *lhw; 4787 struct lkpi_vif *lvif; 4788 struct ieee80211_vif *vif; 4789 int ac_count, ac; 4790 4791 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 4792 __func__, qnum, hw->queues, hw)); 4793 4794 lhw = wiphy_priv(hw->wiphy); 4795 4796 /* See lkpi_ic_vap_create(). */ 4797 if (hw->queues >= IEEE80211_NUM_ACS) 4798 ac_count = IEEE80211_NUM_ACS; 4799 else 4800 ac_count = 1; 4801 4802 LKPI_80211_LHW_LVIF_LOCK(lhw); 4803 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4804 4805 vif = LVIF_TO_VIF(lvif); 4806 for (ac = 0; ac < ac_count; ac++) { 4807 IMPROVE_TXQ("LOCKING"); 4808 if (qnum == vif->hw_queue[ac]) { 4809 /* 4810 * For now log this to better understand 4811 * how this is supposed to work. 4812 */ 4813 if (lvif->hw_queue_stopped[ac]) 4814 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4815 "lvif %p vif %p ac %d qnum %d already " 4816 "stopped\n", __func__, __LINE__, 4817 lhw, hw, lvif, vif, ac, qnum); 4818 lvif->hw_queue_stopped[ac] = true; 4819 } 4820 } 4821 } 4822 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4823 } 4824 4825 void 4826 linuxkpi_ieee80211_stop_queues(struct ieee80211_hw *hw) 4827 { 4828 int i; 4829 4830 IMPROVE_TXQ("Locking; do we need further info?"); 4831 for (i = 0; i < hw->queues; i++) 4832 linuxkpi_ieee80211_stop_queue(hw, i); 4833 } 4834 4835 4836 static void 4837 lkpi_ieee80211_wake_queues(struct ieee80211_hw *hw, int hwq) 4838 { 4839 struct lkpi_hw *lhw; 4840 struct lkpi_vif *lvif; 4841 struct lkpi_sta *lsta; 4842 int ac_count, ac, tid; 4843 4844 /* See lkpi_ic_vap_create(). */ 4845 if (hw->queues >= IEEE80211_NUM_ACS) 4846 ac_count = IEEE80211_NUM_ACS; 4847 else 4848 ac_count = 1; 4849 4850 lhw = wiphy_priv(hw->wiphy); 4851 4852 IMPROVE_TXQ("Locking"); 4853 LKPI_80211_LHW_LVIF_LOCK(lhw); 4854 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4855 struct ieee80211_vif *vif; 4856 4857 vif = LVIF_TO_VIF(lvif); 4858 for (ac = 0; ac < ac_count; ac++) { 4859 4860 if (hwq == vif->hw_queue[ac]) { 4861 4862 /* XXX-BZ what about software scan? */ 4863 4864 /* 4865 * For now log this to better understand 4866 * how this is supposed to work. 4867 */ 4868 if (!lvif->hw_queue_stopped[ac]) 4869 ic_printf(lhw->ic, "%s:%d: lhw %p hw %p " 4870 "lvif %p vif %p ac %d hw_q not stopped\n", 4871 __func__, __LINE__, 4872 lhw, hw, lvif, vif, ac); 4873 lvif->hw_queue_stopped[ac] = false; 4874 4875 LKPI_80211_LVIF_LOCK(lvif); 4876 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 4877 struct ieee80211_sta *sta; 4878 4879 sta = LSTA_TO_STA(lsta); 4880 for (tid = 0; tid < nitems(sta->txq); tid++) { 4881 struct lkpi_txq *ltxq; 4882 4883 if (sta->txq[tid] == NULL) 4884 continue; 4885 4886 if (sta->txq[tid]->ac != ac) 4887 continue; 4888 4889 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 4890 if (!ltxq->stopped) 4891 continue; 4892 4893 ltxq->stopped = false; 4894 4895 /* XXX-BZ see when this explodes with all the locking. taskq? */ 4896 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 4897 } 4898 } 4899 LKPI_80211_LVIF_UNLOCK(lvif); 4900 } 4901 } 4902 } 4903 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4904 } 4905 4906 void 4907 linuxkpi_ieee80211_wake_queues(struct ieee80211_hw *hw) 4908 { 4909 int i; 4910 4911 IMPROVE_TXQ("Is this all/enough here?"); 4912 for (i = 0; i < hw->queues; i++) 4913 lkpi_ieee80211_wake_queues(hw, i); 4914 } 4915 4916 void 4917 linuxkpi_ieee80211_wake_queue(struct ieee80211_hw *hw, int qnum) 4918 { 4919 4920 KASSERT(qnum < hw->queues, ("%s: qnum %d >= hw->queues %d, hw %p\n", 4921 __func__, qnum, hw->queues, hw)); 4922 4923 lkpi_ieee80211_wake_queues(hw, qnum); 4924 } 4925 4926 /* This is just hardware queues. */ 4927 void 4928 linuxkpi_ieee80211_txq_schedule_start(struct ieee80211_hw *hw, uint8_t ac) 4929 { 4930 struct lkpi_hw *lhw; 4931 4932 lhw = HW_TO_LHW(hw); 4933 4934 IMPROVE_TXQ("Are there reasons why we wouldn't schedule?"); 4935 IMPROVE_TXQ("LOCKING"); 4936 if (++lhw->txq_generation[ac] == 0) 4937 lhw->txq_generation[ac]++; 4938 } 4939 4940 struct ieee80211_txq * 4941 linuxkpi_ieee80211_next_txq(struct ieee80211_hw *hw, uint8_t ac) 4942 { 4943 struct lkpi_hw *lhw; 4944 struct ieee80211_txq *txq; 4945 struct lkpi_txq *ltxq; 4946 4947 lhw = HW_TO_LHW(hw); 4948 txq = NULL; 4949 4950 IMPROVE_TXQ("LOCKING"); 4951 4952 /* Check that we are scheduled. */ 4953 if (lhw->txq_generation[ac] == 0) 4954 goto out; 4955 4956 ltxq = TAILQ_FIRST(&lhw->scheduled_txqs[ac]); 4957 if (ltxq == NULL) 4958 goto out; 4959 if (ltxq->txq_generation == lhw->txq_generation[ac]) 4960 goto out; 4961 4962 ltxq->txq_generation = lhw->txq_generation[ac]; 4963 TAILQ_REMOVE(&lhw->scheduled_txqs[ac], ltxq, txq_entry); 4964 txq = <xq->txq; 4965 TAILQ_ELEM_INIT(ltxq, txq_entry); 4966 4967 out: 4968 return (txq); 4969 } 4970 4971 void linuxkpi_ieee80211_schedule_txq(struct ieee80211_hw *hw, 4972 struct ieee80211_txq *txq, bool withoutpkts) 4973 { 4974 struct lkpi_hw *lhw; 4975 struct lkpi_txq *ltxq; 4976 4977 ltxq = TXQ_TO_LTXQ(txq); 4978 4979 IMPROVE_TXQ("LOCKING"); 4980 4981 /* Only schedule if work to do or asked to anyway. */ 4982 if (!withoutpkts && skb_queue_empty(<xq->skbq)) 4983 goto out; 4984 4985 /* Make sure we do not double-schedule. */ 4986 if (ltxq->txq_entry.tqe_next != NULL) 4987 goto out; 4988 4989 lhw = HW_TO_LHW(hw); 4990 TAILQ_INSERT_TAIL(&lhw->scheduled_txqs[txq->ac], ltxq, txq_entry); 4991 out: 4992 return; 4993 } 4994 4995 /* -------------------------------------------------------------------------- */ 4996 4997 struct lkpi_cfg80211_bss { 4998 u_int refcnt; 4999 struct cfg80211_bss bss; 5000 }; 5001 5002 struct lkpi_cfg80211_get_bss_iter_lookup { 5003 struct wiphy *wiphy; 5004 struct linuxkpi_ieee80211_channel *chan; 5005 const uint8_t *bssid; 5006 const uint8_t *ssid; 5007 size_t ssid_len; 5008 enum ieee80211_bss_type bss_type; 5009 enum ieee80211_privacy privacy; 5010 5011 /* 5012 * Something to store a copy of the result as the net80211 scan cache 5013 * is not refoucnted so a scan entry might go away any time. 5014 */ 5015 bool match; 5016 struct cfg80211_bss *bss; 5017 }; 5018 5019 static void 5020 lkpi_cfg80211_get_bss_iterf(void *arg, const struct ieee80211_scan_entry *se) 5021 { 5022 struct lkpi_cfg80211_get_bss_iter_lookup *lookup; 5023 size_t ielen; 5024 5025 lookup = arg; 5026 5027 /* Do not try to find another match. */ 5028 if (lookup->match) 5029 return; 5030 5031 /* Nothing to store result. */ 5032 if (lookup->bss == NULL) 5033 return; 5034 5035 if (lookup->privacy != IEEE80211_PRIVACY_ANY) { 5036 /* if (se->se_capinfo & IEEE80211_CAPINFO_PRIVACY) */ 5037 /* We have no idea what to compare to as the drivers only request ANY */ 5038 return; 5039 } 5040 5041 if (lookup->bss_type != IEEE80211_BSS_TYPE_ANY) { 5042 /* if (se->se_capinfo & (IEEE80211_CAPINFO_IBSS|IEEE80211_CAPINFO_ESS)) */ 5043 /* We have no idea what to compare to as the drivers only request ANY */ 5044 return; 5045 } 5046 5047 if (lookup->chan != NULL) { 5048 struct linuxkpi_ieee80211_channel *chan; 5049 5050 chan = linuxkpi_ieee80211_get_channel(lookup->wiphy, 5051 se->se_chan->ic_freq); 5052 if (chan == NULL || chan != lookup->chan) 5053 return; 5054 } 5055 5056 if (lookup->bssid && !IEEE80211_ADDR_EQ(lookup->bssid, se->se_bssid)) 5057 return; 5058 5059 if (lookup->ssid) { 5060 if (lookup->ssid_len != se->se_ssid[1] || 5061 se->se_ssid[1] == 0) 5062 return; 5063 if (memcmp(lookup->ssid, se->se_ssid+2, lookup->ssid_len) != 0) 5064 return; 5065 } 5066 5067 ielen = se->se_ies.len; 5068 5069 lookup->bss->ies = malloc(sizeof(*lookup->bss->ies) + ielen, 5070 M_LKPI80211, M_NOWAIT | M_ZERO); 5071 if (lookup->bss->ies == NULL) 5072 return; 5073 5074 lookup->bss->ies->data = (uint8_t *)lookup->bss->ies + sizeof(*lookup->bss->ies); 5075 lookup->bss->ies->len = ielen; 5076 if (ielen) 5077 memcpy(lookup->bss->ies->data, se->se_ies.data, ielen); 5078 5079 lookup->match = true; 5080 } 5081 5082 struct cfg80211_bss * 5083 linuxkpi_cfg80211_get_bss(struct wiphy *wiphy, struct linuxkpi_ieee80211_channel *chan, 5084 const uint8_t *bssid, const uint8_t *ssid, size_t ssid_len, 5085 enum ieee80211_bss_type bss_type, enum ieee80211_privacy privacy) 5086 { 5087 struct lkpi_cfg80211_bss *lbss; 5088 struct lkpi_cfg80211_get_bss_iter_lookup lookup; 5089 struct lkpi_hw *lhw; 5090 struct ieee80211vap *vap; 5091 5092 lhw = wiphy_priv(wiphy); 5093 5094 /* Let's hope we can alloc. */ 5095 lbss = malloc(sizeof(*lbss), M_LKPI80211, M_NOWAIT | M_ZERO); 5096 if (lbss == NULL) { 5097 ic_printf(lhw->ic, "%s: alloc failed.\n", __func__); 5098 return (NULL); 5099 } 5100 5101 lookup.wiphy = wiphy; 5102 lookup.chan = chan; 5103 lookup.bssid = bssid; 5104 lookup.ssid = ssid; 5105 lookup.ssid_len = ssid_len; 5106 lookup.bss_type = bss_type; 5107 lookup.privacy = privacy; 5108 lookup.match = false; 5109 lookup.bss = &lbss->bss; 5110 5111 IMPROVE("Iterate over all VAPs comparing perm_addr and addresses?"); 5112 vap = TAILQ_FIRST(&lhw->ic->ic_vaps); 5113 ieee80211_scan_iterate(vap, lkpi_cfg80211_get_bss_iterf, &lookup); 5114 if (!lookup.match) { 5115 free(lbss, M_LKPI80211); 5116 return (NULL); 5117 } 5118 5119 refcount_init(&lbss->refcnt, 1); 5120 return (&lbss->bss); 5121 } 5122 5123 void 5124 linuxkpi_cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss) 5125 { 5126 struct lkpi_cfg80211_bss *lbss; 5127 5128 lbss = container_of(bss, struct lkpi_cfg80211_bss, bss); 5129 5130 /* Free everything again on refcount ... */ 5131 if (refcount_release(&lbss->refcnt)) { 5132 free(lbss->bss.ies, M_LKPI80211); 5133 free(lbss, M_LKPI80211); 5134 } 5135 } 5136 5137 void 5138 linuxkpi_cfg80211_bss_flush(struct wiphy *wiphy) 5139 { 5140 struct lkpi_hw *lhw; 5141 struct ieee80211com *ic; 5142 struct ieee80211vap *vap; 5143 5144 lhw = wiphy_priv(wiphy); 5145 ic = lhw->ic; 5146 5147 /* 5148 * If we haven't called ieee80211_ifattach() yet 5149 * or there is no VAP, there are no scans to flush. 5150 */ 5151 if (ic == NULL || 5152 (lhw->sc_flags & LKPI_MAC80211_DRV_STARTED) == 0) 5153 return; 5154 5155 /* Should only happen on the current one? Not seen it late enough. */ 5156 IEEE80211_LOCK(ic); 5157 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 5158 ieee80211_scan_flush(vap); 5159 IEEE80211_UNLOCK(ic); 5160 } 5161 5162 /* -------------------------------------------------------------------------- */ 5163 5164 MODULE_VERSION(linuxkpi_wlan, 1); 5165 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 5166 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 5167