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