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