1 /*- 2 * Copyright (c) 2020-2021 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 57 #include <net/if.h> 58 #include <net/if_var.h> 59 #include <net/if_media.h> 60 #include <net/ethernet.h> 61 62 #include <net80211/ieee80211_var.h> 63 #include <net80211/ieee80211_proto.h> 64 #include <net80211/ieee80211_ratectl.h> 65 #include <net80211/ieee80211_radiotap.h> 66 67 #define LINUXKPI_NET80211 68 #include <net/mac80211.h> 69 70 #include <linux/workqueue.h> 71 #include "linux_80211.h" 72 73 static MALLOC_DEFINE(M_LKPI80211, "lkpi80211", "Linux KPI 80211 compat"); 74 75 /* -------------------------------------------------------------------------- */ 76 /* These are unrelated to 802.11 sysctl bug debugging during 802.11 work so * 77 * keep them here rather than in a more general file. */ 78 79 int debug_skb; 80 SYSCTL_INT(_compat_linuxkpi, OID_AUTO, debug_skb, CTLFLAG_RWTUN, 81 &debug_skb, 0, "SKB debug level"); 82 83 /* -------------------------------------------------------------------------- */ 84 85 int debug_80211; 86 SYSCTL_INT(_compat_linuxkpi, OID_AUTO, debug_80211, CTLFLAG_RWTUN, 87 &debug_80211, 0, "80211 debug Level"); 88 89 #define LINUXKPI_DEBUG_80211 90 #ifdef LINUXKPI_DEBUG_80211 91 #ifndef D80211_TODO 92 #define D80211_TODO 0x1 93 #endif 94 #ifndef D80211_IMPROVE 95 #define D80211_IMPROVE 0x2 96 #endif 97 #define D80211_TRACE 0x10 98 #define D80211_TRACEOK 0x20 99 #define D80211_TRACE_TX 0x100 100 #define D80211_TRACE_TX_DUMP 0x200 101 #define D80211_TRACE_RX 0x1000 102 #define D80211_TRACE_RX_DUMP 0x2000 103 #define D80211_TRACE_RX_BEACONS 0x4000 104 #define D80211_TRACEX (D80211_TRACE_TX|D80211_TRACE_RX) 105 #define D80211_TRACEX_DUMP (D80211_TRACE_TX_DUMP|D80211_TRACE_RX_DUMP) 106 #define UNIMPLEMENTED if (debug_80211 & D80211_TODO) \ 107 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 108 #define TRACEOK() if (debug_80211 & D80211_TRACEOK) \ 109 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 110 #else 111 #define UNIMPLEMENTED do { } while (0) 112 #define TRACEOK() do { } while (0) 113 #endif 114 115 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 116 #ifndef PREP_TX_INFO_DURATION 117 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 118 #endif 119 120 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 121 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 122 123 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 124 /* 125 * XXX TODO need a "glue layer" to link cfg80211 ops to 126 * mac80211 and to the driver or net80211. 127 * Can we pass some on 1:1? Need to compare the (*f)(). 128 */ 129 }; 130 131 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 132 struct ieee80211_node *); 133 static void lkpi_80211_txq_task(void *, int); 134 static void lkpi_ieee80211_free_skb_mbuf(void *); 135 136 static enum nl80211_band 137 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 138 { 139 140 if (IEEE80211_IS_CHAN_2GHZ(c)) 141 return (NL80211_BAND_2GHZ); 142 else if (IEEE80211_IS_CHAN_5GHZ(c)) 143 return (NL80211_BAND_5GHZ); 144 #ifdef __notyet__ 145 else if () 146 return (NL80211_BAND_6GHZ); 147 else if () 148 return (NL80211_BAND_60GHZ); 149 else if (IEEE80211_IS_CHAN_GSM(c)) 150 return (NL80211_BAND_XXX); 151 #endif 152 else 153 panic("%s: unsupported band. c %p flags %#x\n", 154 __func__, c, c->ic_flags); 155 } 156 157 static uint32_t 158 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 159 { 160 161 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 162 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 163 switch (band) { 164 case NL80211_BAND_2GHZ: 165 return (IEEE80211_CHAN_2GHZ); 166 break; 167 case NL80211_BAND_5GHZ: 168 return (IEEE80211_CHAN_5GHZ); 169 break; 170 case NL80211_BAND_60GHZ: 171 break; 172 case NL80211_BAND_6GHZ: 173 break; 174 default: 175 panic("%s: unsupported band %u\n", __func__, band); 176 break; 177 } 178 179 IMPROVE(); 180 return (0x00); 181 } 182 183 static enum ieee80211_ac_numbers 184 lkpi_ac_net_to_l80211(int ac) 185 { 186 187 switch (ac) { 188 case WME_AC_VO: 189 return (IEEE80211_AC_VO); 190 case WME_AC_VI: 191 return (IEEE80211_AC_VI); 192 case WME_AC_BE: 193 return (IEEE80211_AC_BE); 194 case WME_AC_BK: 195 return (IEEE80211_AC_BK); 196 default: 197 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 198 return (IEEE80211_AC_BE); 199 } 200 } 201 202 static enum nl80211_iftype 203 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 204 { 205 206 switch (opmode) { 207 case IEEE80211_M_IBSS: 208 return (NL80211_IFTYPE_ADHOC); 209 break; 210 case IEEE80211_M_STA: 211 return (NL80211_IFTYPE_STATION); 212 break; 213 case IEEE80211_M_WDS: 214 return (NL80211_IFTYPE_WDS); 215 break; 216 case IEEE80211_M_HOSTAP: 217 return (NL80211_IFTYPE_AP); 218 break; 219 case IEEE80211_M_MONITOR: 220 return (NL80211_IFTYPE_MONITOR); 221 break; 222 case IEEE80211_M_MBSS: 223 return (NL80211_IFTYPE_MESH_POINT); 224 break; 225 case IEEE80211_M_AHDEMO: 226 /* FALLTHROUGH */ 227 default: 228 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 229 /* FALLTHROUGH */ 230 } 231 return (NL80211_IFTYPE_UNSPECIFIED); 232 } 233 234 #ifdef __notyet__ 235 static uint32_t 236 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 237 { 238 239 switch (wlan_cipher_suite) { 240 case WLAN_CIPHER_SUITE_WEP40: 241 return (IEEE80211_CRYPTO_WEP); 242 case WLAN_CIPHER_SUITE_TKIP: 243 return (IEEE80211_CRYPTO_TKIP); 244 case WLAN_CIPHER_SUITE_CCMP: 245 return (IEEE80211_CIPHER_AES_CCM); 246 case WLAN_CIPHER_SUITE_WEP104: 247 return (IEEE80211_CRYPTO_WEP); 248 case WLAN_CIPHER_SUITE_AES_CMAC: 249 case WLAN_CIPHER_SUITE_GCMP: 250 case WLAN_CIPHER_SUITE_GCMP_256: 251 case WLAN_CIPHER_SUITE_CCMP_256: 252 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 253 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 254 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 255 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 256 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 257 break; 258 default: 259 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 260 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 261 } 262 263 return (0); 264 } 265 #endif 266 267 #ifdef TRY_HW_CRYPTO 268 static uint32_t 269 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 270 { 271 272 switch (cipher) { 273 case IEEE80211_CIPHER_TKIP: 274 return (WLAN_CIPHER_SUITE_TKIP); 275 case IEEE80211_CIPHER_AES_CCM: 276 return (WLAN_CIPHER_SUITE_CCMP); 277 case IEEE80211_CIPHER_WEP: 278 if (keylen < 8) 279 return (WLAN_CIPHER_SUITE_WEP40); 280 else 281 return (WLAN_CIPHER_SUITE_WEP104); 282 break; 283 case IEEE80211_CIPHER_AES_OCB: 284 case IEEE80211_CIPHER_TKIPMIC: 285 case IEEE80211_CIPHER_CKIP: 286 case IEEE80211_CIPHER_NONE: 287 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 288 break; 289 default: 290 printf("%s: unknown cipher %#010x\n", __func__, cipher); 291 }; 292 return (0); 293 } 294 #endif 295 296 #ifdef __notyet__ 297 static enum ieee80211_sta_state 298 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 299 { 300 301 /* 302 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 303 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 304 */ 305 switch (state) { 306 case IEEE80211_S_INIT: 307 return (IEEE80211_STA_NOTEXIST); 308 case IEEE80211_S_SCAN: 309 return (IEEE80211_STA_NONE); 310 case IEEE80211_S_AUTH: 311 return (IEEE80211_STA_AUTH); 312 case IEEE80211_S_ASSOC: 313 return (IEEE80211_STA_ASSOC); 314 case IEEE80211_S_RUN: 315 return (IEEE80211_STA_AUTHORIZED); 316 case IEEE80211_S_CAC: 317 case IEEE80211_S_CSA: 318 case IEEE80211_S_SLEEP: 319 default: 320 UNIMPLEMENTED; 321 }; 322 323 return (IEEE80211_STA_NOTEXIST); 324 } 325 #endif 326 327 static struct linuxkpi_ieee80211_channel * 328 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 329 struct ieee80211_channel *c) 330 { 331 struct ieee80211_hw *hw; 332 struct linuxkpi_ieee80211_channel *channels; 333 enum nl80211_band band; 334 int i, nchans; 335 336 hw = LHW_TO_HW(lhw); 337 band = lkpi_net80211_chan_to_nl80211_band(c); 338 if (hw->wiphy->bands[band] == NULL) 339 return (NULL); 340 341 nchans = hw->wiphy->bands[band]->n_channels; 342 if (nchans <= 0) 343 return (NULL); 344 345 channels = hw->wiphy->bands[band]->channels; 346 for (i = 0; i < nchans; i++) { 347 if (channels[i].hw_value == c->ic_ieee) 348 return (&channels[i]); 349 } 350 351 return (NULL); 352 } 353 354 static struct linuxkpi_ieee80211_channel * 355 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 356 { 357 struct linuxkpi_ieee80211_channel *chan; 358 struct ieee80211_channel *c; 359 struct lkpi_hw *lhw; 360 361 chan = NULL; 362 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 363 c = ni->ni_chan; 364 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 365 c = ic->ic_bsschan; 366 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 367 c = ic->ic_curchan; 368 else 369 c = NULL; 370 371 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 372 lhw = ic->ic_softc; 373 chan = lkpi_find_lkpi80211_chan(lhw, c); 374 } 375 376 return (chan); 377 } 378 379 #ifdef TRY_HW_CRYPTO 380 static int 381 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 382 enum set_key_cmd cmd) 383 { 384 struct ieee80211com *ic; 385 struct lkpi_hw *lhw; 386 struct ieee80211_hw *hw; 387 struct lkpi_vif *lvif; 388 struct ieee80211_vif *vif; 389 struct ieee80211_sta *sta; 390 struct ieee80211_node *ni; 391 struct ieee80211_key_conf *kc; 392 int error; 393 394 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 395 396 ic = vap->iv_ic; 397 lhw = ic->ic_softc; 398 hw = LHW_TO_HW(lhw); 399 lvif = VAP_TO_LVIF(vap); 400 vif = LVIF_TO_VIF(lvif); 401 402 memset(&kc, 0, sizeof(kc)); 403 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 404 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 405 k->wk_cipher->ic_cipher, k->wk_keylen); 406 kc->keyidx = k->wk_keyix; 407 #if 0 408 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 409 #endif 410 atomic64_set(&kc->tx_pn, k->wk_keytsc); 411 kc->keylen = k->wk_keylen; 412 memcpy(kc->key, k->wk_key, k->wk_keylen); 413 414 switch (kc->cipher) { 415 case WLAN_CIPHER_SUITE_CCMP: 416 kc->iv_len = k->wk_cipher->ic_header; 417 kc->icv_len = k->wk_cipher->ic_trailer; 418 break; 419 case WLAN_CIPHER_SUITE_TKIP: 420 default: 421 IMPROVE(); 422 return (0); 423 }; 424 425 ni = vap->iv_bss; 426 sta = ieee80211_find_sta(vif, ni->ni_bssid); 427 if (sta != NULL) { 428 struct lkpi_sta *lsta; 429 430 lsta = STA_TO_LSTA(sta); 431 lsta->kc = kc; 432 } 433 434 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 435 if (error != 0) { 436 /* XXX-BZ leaking kc currently */ 437 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 438 return (0); 439 } else { 440 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 441 "flags %#10x\n", __func__, 442 kc->keyidx, kc->hw_key_idx, kc->flags); 443 return (1); 444 } 445 } 446 447 static int 448 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 449 { 450 451 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 452 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 453 } 454 static int 455 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 456 { 457 458 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 459 } 460 #endif 461 462 static u_int 463 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 464 { 465 struct netdev_hw_addr_list *mc_list; 466 struct netdev_hw_addr *addr; 467 468 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 469 __func__, arg, sdl, cnt)); 470 471 mc_list = arg; 472 /* If it is on the list already skip it. */ 473 netdev_hw_addr_list_for_each(addr, mc_list) { 474 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 475 return (0); 476 } 477 478 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 479 if (addr == NULL) 480 return (0); 481 482 INIT_LIST_HEAD(&addr->addr_list); 483 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 484 /* XXX this should be a netdev function? */ 485 list_add(&addr->addr_list, &mc_list->addr_list); 486 mc_list->count++; 487 488 if (debug_80211 & D80211_TRACE) 489 printf("%s:%d: mc_list count %d: added %6D\n", 490 __func__, __LINE__, mc_list->count, addr->addr, ":"); 491 492 return (1); 493 } 494 495 static void 496 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 497 { 498 struct lkpi_hw *lhw; 499 struct ieee80211_hw *hw; 500 struct netdev_hw_addr_list mc_list; 501 struct list_head *le, *next; 502 struct netdev_hw_addr *addr; 503 struct ieee80211vap *vap; 504 u64 mc; 505 unsigned int changed_flags, total_flags; 506 507 lhw = ic->ic_softc; 508 509 if (lhw->ops->prepare_multicast == NULL || 510 lhw->ops->configure_filter == NULL) 511 return; 512 513 if (!lhw->update_mc && !force) 514 return; 515 516 changed_flags = total_flags = 0; 517 mc_list.count = 0; 518 INIT_LIST_HEAD(&mc_list.addr_list); 519 if (ic->ic_allmulti == 0) { 520 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 521 if_foreach_llmaddr(vap->iv_ifp, 522 lkpi_ic_update_mcast_copy, &mc_list); 523 } else { 524 changed_flags |= FIF_ALLMULTI; 525 } 526 527 hw = LHW_TO_HW(lhw); 528 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 529 /* 530 * XXX-BZ make sure to get this sorted what is a change, 531 * what gets all set; what was already set? 532 */ 533 total_flags = changed_flags; 534 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 535 536 if (debug_80211 & D80211_TRACE) 537 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 538 __func__, changed_flags, mc_list.count, total_flags); 539 540 if (mc_list.count != 0) { 541 list_for_each_safe(le, next, &mc_list.addr_list) { 542 addr = list_entry(le, struct netdev_hw_addr, addr_list); 543 free(addr, M_LKPI80211); 544 mc_list.count--; 545 } 546 } 547 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 548 __func__, &mc_list, mc_list.count)); 549 } 550 551 const uint8_t tid_to_mac80211_ac[] = { 552 IEEE80211_AC_BE, 553 IEEE80211_AC_BK, 554 IEEE80211_AC_BK, 555 IEEE80211_AC_BE, 556 IEEE80211_AC_VI, 557 IEEE80211_AC_VI, 558 IEEE80211_AC_VO, 559 IEEE80211_AC_VO, 560 #if 0 561 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 562 #endif 563 }; 564 565 static void 566 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 567 { 568 struct ieee80211_hw *hw; 569 int error; 570 571 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) 572 return; 573 574 hw = LHW_TO_HW(lhw); 575 576 /* Need to cancel the scan. */ 577 lkpi_80211_mo_cancel_hw_scan(hw, vif); 578 579 /* Need to make sure we see ieee80211_scan_completed. */ 580 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 581 582 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) 583 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 584 __func__, error, lhw, vif); 585 } 586 587 static void 588 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 589 { 590 struct lkpi_hw *lhw; 591 int error; 592 bool old; 593 594 old = hw->conf.flags & IEEE80211_CONF_IDLE; 595 if (old == new) 596 return; 597 598 hw->conf.flags ^= IEEE80211_CONF_IDLE; 599 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 600 if (error != 0 && error != EOPNOTSUPP) { 601 lhw = HW_TO_LHW(hw); 602 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 603 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 604 } 605 } 606 607 static void 608 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 609 struct lkpi_hw *lhw) 610 { 611 sta->aid = 0; 612 if (vif->bss_conf.assoc) { 613 struct ieee80211_hw *hw; 614 enum ieee80211_bss_changed changed; 615 616 lhw->update_mc = true; 617 lkpi_update_mcast_filter(lhw->ic, true); 618 619 changed = 0; 620 vif->bss_conf.assoc = false; 621 vif->bss_conf.aid = 0; 622 changed |= BSS_CHANGED_ASSOC; 623 IMPROVE(); 624 hw = LHW_TO_HW(lhw); 625 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 626 changed); 627 628 lkpi_hw_conf_idle(hw, true); 629 } 630 } 631 632 static void 633 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 634 bool dequeue_seen, bool no_emptyq) 635 { 636 struct lkpi_txq *ltxq; 637 int tid; 638 639 /* Wake up all queues to know they are allocated in the driver. */ 640 for (tid = 0; tid < nitems(sta->txq); tid++) { 641 642 if (tid == IEEE80211_NUM_TIDS) { 643 IMPROVE("station specific?"); 644 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 645 continue; 646 } else if (tid >= hw->queues) 647 continue; 648 649 if (sta->txq[tid] == NULL) 650 continue; 651 652 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 653 if (dequeue_seen && !ltxq->seen_dequeue) 654 continue; 655 656 if (no_emptyq && skb_queue_empty(<xq->skbq)) 657 continue; 658 659 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 660 } 661 } 662 663 /* -------------------------------------------------------------------------- */ 664 665 static int 666 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 667 { 668 669 return (0); 670 } 671 672 /* lkpi_iv_newstate() handles the stop scan case generally. */ 673 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 674 675 static int 676 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 677 { 678 struct linuxkpi_ieee80211_channel *chan; 679 struct ieee80211_chanctx_conf *conf; 680 struct lkpi_hw *lhw; 681 struct ieee80211_hw *hw; 682 struct lkpi_vif *lvif; 683 struct ieee80211_vif *vif; 684 struct ieee80211_node *ni; 685 struct lkpi_sta *lsta; 686 struct ieee80211_sta *sta; 687 enum ieee80211_bss_changed bss_changed; 688 struct ieee80211_prep_tx_info prep_tx_info; 689 uint32_t changed; 690 int error; 691 692 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 693 if (chan == NULL) { 694 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 695 return (ESRCH); 696 } 697 698 lhw = vap->iv_ic->ic_softc; 699 hw = LHW_TO_HW(lhw); 700 lvif = VAP_TO_LVIF(vap); 701 vif = LVIF_TO_VIF(lvif); 702 703 IEEE80211_UNLOCK(vap->iv_ic); 704 705 /* Add chanctx (or if exists, change it). */ 706 if (vif->chanctx_conf != NULL) { 707 conf = vif->chanctx_conf; 708 IMPROVE("diff changes for changed, working on live copy, rcu"); 709 } else { 710 /* Keep separate alloc as in Linux this is rcu managed? */ 711 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 712 M_LKPI80211, M_WAITOK | M_ZERO); 713 } 714 715 conf->rx_chains_dynamic = 1; 716 conf->rx_chains_static = 1; 717 conf->radar_enabled = 718 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 719 conf->def.chan = chan; 720 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 721 conf->def.center_freq1 = chan->center_freq; 722 conf->def.center_freq2 = 0; 723 /* Responder ... */ 724 conf->min_def.chan = chan; 725 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 726 conf->min_def.center_freq1 = chan->center_freq; 727 conf->min_def.center_freq2 = 0; 728 IMPROVE("currently 20_NOHT only"); 729 730 ni = NULL; 731 error = 0; 732 if (vif->chanctx_conf != NULL) { 733 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 734 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 735 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 736 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 737 lkpi_80211_mo_change_chanctx(hw, conf, changed); 738 } else { 739 error = lkpi_80211_mo_add_chanctx(hw, conf); 740 if (error == 0 || error == EOPNOTSUPP) { 741 vif->bss_conf.chandef.chan = conf->def.chan; 742 vif->bss_conf.chandef.width = conf->def.width; 743 vif->bss_conf.chandef.center_freq1 = 744 conf->def.center_freq1; 745 vif->bss_conf.chandef.center_freq2 = 746 conf->def.center_freq2; 747 } else { 748 goto out; 749 } 750 /* Assign vif chanctx. */ 751 if (error == 0) 752 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 753 if (error == EOPNOTSUPP) 754 error = 0; 755 if (error != 0) { 756 lkpi_80211_mo_remove_chanctx(hw, conf); 757 free(conf, M_LKPI80211); 758 goto out; 759 } 760 } 761 IMPROVE("update radiotap chan fields too"); 762 763 ni = ieee80211_ref_node(vap->iv_bss); 764 765 /* Set bss info (bss_info_changed). */ 766 bss_changed = 0; 767 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, ni->ni_bssid); 768 bss_changed |= BSS_CHANGED_BSSID; 769 vif->bss_conf.txpower = ni->ni_txpower; 770 bss_changed |= BSS_CHANGED_TXPOWER; 771 vif->bss_conf.idle = false; 772 bss_changed |= BSS_CHANGED_IDLE; 773 vif->bss_conf.beacon_int = ni->ni_intval; 774 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 775 if (vif->bss_conf.beacon_int < 16) 776 vif->bss_conf.beacon_int = 16; 777 bss_changed |= BSS_CHANGED_BEACON_INT; 778 /* Should almost assert it is this. */ 779 vif->bss_conf.assoc = false; 780 vif->bss_conf.aid = 0; 781 /* RATES */ 782 IMPROVE("bss info: not all needs to come now and rates are missing"); 783 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 784 785 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 786 lsta = ni->ni_drv_data; 787 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 788 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 789 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 790 sta = LSTA_TO_STA(lsta); 791 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 792 if (error != 0) { 793 IMPROVE("do we need to undo the chan ctx?"); 794 goto out; 795 } 796 #if 0 797 lsta->added_to_drv = true; /* mo manages. */ 798 #endif 799 800 /* 801 * Wakeup all queues now that sta is there so we have as much time to 802 * possibly prepare the queue in the driver to be ready for the 1st 803 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 804 * is no guarantee or way to check. 805 */ 806 lkpi_wake_tx_queues(hw, sta, false, false); 807 808 { 809 int i, count; 810 811 for (i = 3 * (hw->queues + 1); i > 0; i--) { 812 struct lkpi_txq *ltxq; 813 int tid; 814 815 count = 0; 816 /* Wake up all queues to know they are allocated in the driver. */ 817 for (tid = 0; tid < nitems(sta->txq); tid++) { 818 819 if (tid == IEEE80211_NUM_TIDS) { 820 IMPROVE("station specific?"); 821 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 822 continue; 823 } else if (tid >= hw->queues) 824 continue; 825 826 if (sta->txq[tid] == NULL) 827 continue; 828 829 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 830 if (!ltxq->seen_dequeue) 831 count++; 832 } 833 if (count == 0) 834 break; 835 #ifdef LINUXKPI_DEBUG_80211 836 if (count > 0) 837 ic_printf(vap->iv_ic, "%s: waiting for %d queues " 838 "to be allocated by driver\n", __func__, count); 839 #endif 840 pause("lkpi80211txq", hz/10); 841 } 842 #ifdef LINUXKPI_DEBUG_80211 843 if (count > 0) 844 ic_printf(vap->iv_ic, "%s: %d queues still not " 845 "allocated by driver\n", __func__, count); 846 #endif 847 } 848 849 /* Start mgd_prepare_tx. */ 850 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 851 prep_tx_info.duration = PREP_TX_INFO_DURATION; 852 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 853 lsta->in_mgd = true; 854 855 /* 856 * What is going to happen next: 857 * - <twiddle> .. we should end up in "auth_to_assoc" 858 * - event_callback 859 * - update sta_state (NONE to AUTH) 860 * - mgd_complete_tx 861 * (ideally we'd do that on a callback for something else ...) 862 */ 863 864 out: 865 IEEE80211_LOCK(vap->iv_ic); 866 if (ni != NULL) 867 ieee80211_free_node(ni); 868 return (error); 869 } 870 871 static int 872 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 873 { 874 struct lkpi_hw *lhw; 875 struct ieee80211_hw *hw; 876 struct lkpi_vif *lvif; 877 struct ieee80211_vif *vif; 878 struct ieee80211_node *ni; 879 struct lkpi_sta *lsta; 880 struct ieee80211_sta *sta; 881 struct ieee80211_prep_tx_info prep_tx_info; 882 int error; 883 884 lhw = vap->iv_ic->ic_softc; 885 hw = LHW_TO_HW(lhw); 886 lvif = VAP_TO_LVIF(vap); 887 vif = LVIF_TO_VIF(lvif); 888 889 /* Keep ni around. */ 890 ni = ieee80211_ref_node(vap->iv_bss); 891 892 IEEE80211_UNLOCK(vap->iv_ic); 893 lsta = ni->ni_drv_data; 894 sta = LSTA_TO_STA(lsta); 895 896 /* flush, drop. */ 897 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 898 899 IEEE80211_LOCK(vap->iv_ic); 900 901 /* Call iv_newstate first so we get potential deauth packet out. */ 902 error = lvif->iv_newstate(vap, nstate, arg); 903 if (error != 0) 904 goto outni; 905 906 IEEE80211_UNLOCK(vap->iv_ic); 907 908 /* Wake tx queues to get packet(s) out. */ 909 lkpi_wake_tx_queues(hw, sta, true, true); 910 911 /* flush, no drop */ 912 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 913 914 /* Take the station and chan ctx down again. */ 915 916 IMPROVE("event callback with failure?"); 917 918 /* End mgd_complete_tx. */ 919 if (lsta->in_mgd) { 920 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 921 prep_tx_info.success = false; 922 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 923 lsta->in_mgd = false; 924 } 925 926 #ifdef __not_yet__ 927 /* sync_rx_queues */ 928 lkpi_80211_mo_sync_rx_queues(hw); 929 930 /* sta_pre_rcu_remove */ 931 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 932 #endif 933 934 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 935 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 936 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 937 "NONE: %#x\n", __func__, lsta, lsta->state)); 938 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 939 if (error != 0) { 940 IMPROVE("do we need to undo the chan ctx?"); 941 goto out; 942 } 943 #if 0 944 lsta->added_to_drv = false; /* mo manages. */ 945 #endif 946 947 IMPROVE("Any bss_info changes to announce?"); 948 949 if (vif->chanctx_conf != NULL) { 950 struct ieee80211_chanctx_conf *conf; 951 952 conf = vif->chanctx_conf; 953 /* Remove vif context. */ 954 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 955 /* NB: vif->chanctx_conf is NULL now. */ 956 957 /* Remove chan ctx. */ 958 lkpi_80211_mo_remove_chanctx(hw, conf); 959 free(conf, M_LKPI80211); 960 } 961 962 /* No need to start a scan; ic_scan_start should do. */ 963 964 error = EALREADY; 965 out: 966 IEEE80211_LOCK(vap->iv_ic); 967 outni: 968 if (ni != NULL) 969 ieee80211_free_node(ni); 970 return (error); 971 } 972 973 static int 974 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 975 { 976 int error; 977 978 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 979 if (error == 0) 980 error = lkpi_sta_scan_to_init(vap, nstate, arg); 981 return (error); 982 } 983 984 static int 985 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 986 { 987 struct lkpi_hw *lhw; 988 struct ieee80211_hw *hw; 989 struct lkpi_vif *lvif; 990 struct ieee80211_vif *vif; 991 struct ieee80211_node *ni; 992 struct lkpi_sta *lsta; 993 struct ieee80211_sta *sta; 994 struct ieee80211_prep_tx_info prep_tx_info; 995 int error; 996 997 lhw = vap->iv_ic->ic_softc; 998 hw = LHW_TO_HW(lhw); 999 lvif = VAP_TO_LVIF(vap); 1000 vif = LVIF_TO_VIF(lvif); 1001 1002 IEEE80211_UNLOCK(vap->iv_ic); 1003 ni = NULL; 1004 1005 /* Finish auth. */ 1006 IMPROVE("event callback"); 1007 1008 /* Update sta_state (NONE to AUTH). */ 1009 ni = ieee80211_ref_node(vap->iv_bss); 1010 lsta = ni->ni_drv_data; 1011 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1012 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1013 "NONE: %#x\n", __func__, lsta, lsta->state)); 1014 sta = LSTA_TO_STA(lsta); 1015 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1016 if (error != 0) 1017 goto out; 1018 1019 /* End mgd_complete_tx. */ 1020 if (lsta->in_mgd) { 1021 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1022 prep_tx_info.success = true; 1023 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1024 lsta->in_mgd = false; 1025 } 1026 1027 /* Now start assoc. */ 1028 1029 /* Start mgd_prepare_tx. */ 1030 if (!lsta->in_mgd) { 1031 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1032 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1033 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1034 lsta->in_mgd = true; 1035 } 1036 1037 /* Wake tx queue to get packet out. */ 1038 lkpi_wake_tx_queues(hw, sta, true, true); 1039 1040 /* 1041 * <twiddle> .. we end up in "assoc_to_run" 1042 * - update sta_state (AUTH to ASSOC) 1043 * - conf_tx [all] 1044 * - bss_info_changed (assoc, aid, ssid, ..) 1045 * - change_chanctx (if needed) 1046 * - event_callback 1047 * - mgd_complete_tx 1048 */ 1049 1050 out: 1051 IEEE80211_LOCK(vap->iv_ic); 1052 if (ni != NULL) 1053 ieee80211_free_node(ni); 1054 return (error); 1055 } 1056 1057 /* auth_to_auth, assoc_to_assoc. */ 1058 static int 1059 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1060 { 1061 struct lkpi_hw *lhw; 1062 struct ieee80211_hw *hw; 1063 struct lkpi_vif *lvif; 1064 struct ieee80211_vif *vif; 1065 struct ieee80211_node *ni; 1066 struct lkpi_sta *lsta; 1067 struct ieee80211_prep_tx_info prep_tx_info; 1068 1069 lhw = vap->iv_ic->ic_softc; 1070 hw = LHW_TO_HW(lhw); 1071 lvif = VAP_TO_LVIF(vap); 1072 vif = LVIF_TO_VIF(lvif); 1073 1074 ni = ieee80211_ref_node(vap->iv_bss); 1075 1076 IEEE80211_UNLOCK(vap->iv_ic); 1077 lsta = ni->ni_drv_data; 1078 1079 IMPROVE("event callback?"); 1080 1081 /* End mgd_complete_tx. */ 1082 if (lsta->in_mgd) { 1083 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1084 prep_tx_info.success = false; 1085 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1086 lsta->in_mgd = false; 1087 } 1088 1089 /* Now start assoc. */ 1090 1091 /* Start mgd_prepare_tx. */ 1092 if (!lsta->in_mgd) { 1093 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1094 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1095 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1096 lsta->in_mgd = true; 1097 } 1098 1099 IEEE80211_LOCK(vap->iv_ic); 1100 if (ni != NULL) 1101 ieee80211_free_node(ni); 1102 1103 return (0); 1104 } 1105 1106 static int 1107 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1108 { 1109 struct lkpi_hw *lhw; 1110 struct ieee80211_hw *hw; 1111 struct lkpi_vif *lvif; 1112 struct ieee80211_vif *vif; 1113 struct ieee80211_node *ni; 1114 struct lkpi_sta *lsta; 1115 struct ieee80211_sta *sta; 1116 struct ieee80211_prep_tx_info prep_tx_info; 1117 int error; 1118 1119 lhw = vap->iv_ic->ic_softc; 1120 hw = LHW_TO_HW(lhw); 1121 lvif = VAP_TO_LVIF(vap); 1122 vif = LVIF_TO_VIF(lvif); 1123 1124 /* Keep ni around. */ 1125 ni = ieee80211_ref_node(vap->iv_bss); 1126 1127 IEEE80211_UNLOCK(vap->iv_ic); 1128 lsta = ni->ni_drv_data; 1129 sta = LSTA_TO_STA(lsta); 1130 1131 /* End mgd_complete_tx. */ 1132 if (lsta->in_mgd) { 1133 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1134 prep_tx_info.success = false; 1135 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1136 lsta->in_mgd = false; 1137 } 1138 1139 /* Update sta and change state (from AUTH) to NONE. */ 1140 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1141 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1142 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1143 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1144 if (error != 0) 1145 goto out; 1146 1147 IMPROVE("anything else?"); 1148 1149 out: 1150 IEEE80211_LOCK(vap->iv_ic); 1151 if (ni != NULL) 1152 ieee80211_free_node(ni); 1153 return (error); 1154 } 1155 1156 static int 1157 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1158 { 1159 int error; 1160 1161 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 1162 if (error == 0) 1163 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1164 return (error); 1165 } 1166 1167 static int 1168 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1169 { 1170 int error; 1171 1172 error = lkpi_sta_assoc_to_scan(vap, nstate, arg); 1173 if (error == 0) 1174 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1175 return (error); 1176 } 1177 1178 static int 1179 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1180 { 1181 struct lkpi_hw *lhw; 1182 struct ieee80211_hw *hw; 1183 struct lkpi_vif *lvif; 1184 struct ieee80211_vif *vif; 1185 struct ieee80211_node *ni; 1186 struct lkpi_sta *lsta; 1187 struct ieee80211_sta *sta; 1188 struct ieee80211_prep_tx_info prep_tx_info; 1189 enum ieee80211_bss_changed bss_changed; 1190 int error; 1191 1192 lhw = vap->iv_ic->ic_softc; 1193 hw = LHW_TO_HW(lhw); 1194 lvif = VAP_TO_LVIF(vap); 1195 vif = LVIF_TO_VIF(lvif); 1196 1197 IEEE80211_UNLOCK(vap->iv_ic); 1198 ni = NULL; 1199 1200 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1201 "and to lesser extend ieee80211_notify_node_join"); 1202 1203 /* Finish assoc. */ 1204 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1205 ni = ieee80211_ref_node(vap->iv_bss); 1206 lsta = ni->ni_drv_data; 1207 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1208 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1209 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1210 sta = LSTA_TO_STA(lsta); 1211 sta->aid = IEEE80211_NODE_AID(ni); 1212 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1213 if (error != 0) 1214 goto out; 1215 1216 IMPROVE("wme / conf_tx [all]"); 1217 1218 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1219 bss_changed = 0; 1220 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1221 vif->bss_conf.assoc = true; 1222 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1223 bss_changed |= BSS_CHANGED_ASSOC; 1224 } 1225 /* We set SSID but this is not BSSID! */ 1226 vif->bss_conf.ssid_len = ni->ni_esslen; 1227 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1228 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1229 vif->bss_conf.use_short_preamble) { 1230 vif->bss_conf.use_short_preamble ^= 1; 1231 /* bss_changed |= BSS_CHANGED_??? */ 1232 } 1233 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1234 vif->bss_conf.use_short_slot) { 1235 vif->bss_conf.use_short_slot ^= 1; 1236 /* bss_changed |= BSS_CHANGED_??? */ 1237 } 1238 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1239 vif->bss_conf.qos) { 1240 vif->bss_conf.qos ^= 1; 1241 bss_changed |= BSS_CHANGED_QOS; 1242 } 1243 if (vif->bss_conf.beacon_int != ni->ni_intval) { 1244 vif->bss_conf.beacon_int = ni->ni_intval; 1245 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 1246 if (vif->bss_conf.beacon_int < 16) 1247 vif->bss_conf.beacon_int = 16; 1248 bss_changed |= BSS_CHANGED_BEACON_INT; 1249 } 1250 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 1251 vap->iv_dtim_period > 0) { 1252 vif->bss_conf.dtim_period = vap->iv_dtim_period; 1253 bss_changed |= BSS_CHANGED_BEACON_INFO; 1254 } 1255 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1256 1257 /* - change_chanctx (if needed) 1258 * - event_callback 1259 */ 1260 1261 /* End mgd_complete_tx. */ 1262 if (lsta->in_mgd) { 1263 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1264 prep_tx_info.success = true; 1265 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1266 lsta->in_mgd = false; 1267 } 1268 1269 lkpi_hw_conf_idle(hw, false); 1270 1271 /* 1272 * And then: 1273 * - (more packets)? 1274 * - set_key 1275 * - set_default_unicast_key 1276 * - set_key (?) 1277 * - ipv6_addr_change (?) 1278 */ 1279 /* Prepare_multicast && configure_filter. */ 1280 lhw->update_mc = true; 1281 lkpi_update_mcast_filter(vap->iv_ic, true); 1282 1283 if (!ieee80211_node_is_authorized(ni)) { 1284 IMPROVE("net80211 does not consider node authorized"); 1285 } 1286 1287 /* Update sta_state (ASSOC to AUTHORIZED). */ 1288 ni = ieee80211_ref_node(vap->iv_bss); 1289 lsta = ni->ni_drv_data; 1290 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1291 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1292 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1293 sta = LSTA_TO_STA(lsta); 1294 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1295 if (error != 0) { 1296 IMPROVE("undo some changes?"); 1297 goto out; 1298 } 1299 1300 /* - drv_config (?) 1301 * - bss_info_changed 1302 * - set_rekey_data (?) 1303 * 1304 * And now we should be passing packets. 1305 */ 1306 IMPROVE("Need that bssid setting, and the keys"); 1307 1308 out: 1309 IEEE80211_LOCK(vap->iv_ic); 1310 if (ni != NULL) 1311 ieee80211_free_node(ni); 1312 return (error); 1313 } 1314 1315 static int 1316 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1317 { 1318 int error; 1319 1320 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1321 if (error == 0) 1322 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1323 return (error); 1324 } 1325 1326 static int 1327 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1328 { 1329 struct lkpi_hw *lhw; 1330 struct ieee80211_hw *hw; 1331 struct lkpi_vif *lvif; 1332 struct ieee80211_vif *vif; 1333 struct ieee80211_node *ni; 1334 struct lkpi_sta *lsta; 1335 struct ieee80211_sta *sta; 1336 int error; 1337 1338 lhw = vap->iv_ic->ic_softc; 1339 hw = LHW_TO_HW(lhw); 1340 lvif = VAP_TO_LVIF(vap); 1341 vif = LVIF_TO_VIF(lvif); 1342 1343 /* Keep ni around. */ 1344 ni = ieee80211_ref_node(vap->iv_bss); 1345 1346 IEEE80211_UNLOCK(vap->iv_ic); 1347 lsta = ni->ni_drv_data; 1348 sta = LSTA_TO_STA(lsta); 1349 1350 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1351 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1352 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1353 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1354 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1355 if (error != 0) 1356 goto out; 1357 1358 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1359 lkpi_disassoc(sta, vif, lhw); 1360 1361 /* Update sta_state (ASSOC to AUTH). */ 1362 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1363 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1364 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1365 sta = LSTA_TO_STA(lsta); 1366 sta->aid = 0; 1367 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1368 if (error != 0) 1369 goto out; 1370 1371 IMPROVE("if ASSOC is final state, prep_tx_info?"); 1372 1373 out: 1374 IEEE80211_LOCK(vap->iv_ic); 1375 if (ni != NULL) 1376 ieee80211_free_node(ni); 1377 return (error); 1378 } 1379 1380 static int 1381 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1382 { 1383 int error; 1384 1385 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 1386 if (error == 0) 1387 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 1388 return (error); 1389 } 1390 1391 static int 1392 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1393 { 1394 int error; 1395 1396 error = lkpi_sta_run_to_auth(vap, nstate, arg); 1397 if (error == 0) 1398 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1399 return (error); 1400 } 1401 1402 static int 1403 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1404 { 1405 int error; 1406 1407 error = lkpi_sta_run_to_scan(vap, nstate, arg); 1408 if (error == 0) 1409 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1410 return (error); 1411 } 1412 1413 /* 1414 * The matches the documented state changes in net80211::sta_newstate(). 1415 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1416 * there are "invalid" (so there is a room for failure here). 1417 */ 1418 struct fsm_state { 1419 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1420 enum ieee80211_state ostate; 1421 enum ieee80211_state nstate; 1422 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1423 } sta_state_fsm[] = { 1424 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1425 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1426 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1427 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, 1428 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, 1429 1430 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1431 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1432 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1433 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1434 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, 1435 1436 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, 1437 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, 1438 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, 1439 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, 1440 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, 1441 1442 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, 1443 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, 1444 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, 1445 1446 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1447 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1448 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1449 1450 /* Dummy at the end without handler. */ 1451 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1452 }; 1453 1454 static int 1455 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1456 { 1457 struct ieee80211com *ic; 1458 struct lkpi_hw *lhw; 1459 struct lkpi_vif *lvif; 1460 struct ieee80211_vif *vif; 1461 struct fsm_state *s; 1462 enum ieee80211_state ostate; 1463 int error; 1464 1465 ic = vap->iv_ic; 1466 IEEE80211_LOCK_ASSERT(ic); 1467 ostate = vap->iv_state; 1468 1469 if (debug_80211 & D80211_TRACE) 1470 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1471 __func__, __LINE__, vap, nstate, arg); 1472 1473 if (vap->iv_opmode == IEEE80211_M_STA) { 1474 1475 lhw = ic->ic_softc; 1476 lvif = VAP_TO_LVIF(vap); 1477 vif = LVIF_TO_VIF(lvif); 1478 1479 /* No need to replicate this in most state handlers. */ 1480 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 1481 lkpi_stop_hw_scan(lhw, vif); 1482 1483 s = sta_state_fsm; 1484 1485 } else { 1486 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 1487 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 1488 return (ENOSYS); 1489 } 1490 1491 error = 0; 1492 for (; s->handler != NULL; s++) { 1493 if (ostate == s->ostate && nstate == s->nstate) { 1494 error = s->handler(vap, nstate, arg); 1495 break; 1496 } 1497 } 1498 IEEE80211_LOCK_ASSERT(vap->iv_ic); 1499 1500 if (s->handler == NULL) { 1501 IMPROVE("thurn this into a KASSERT\n"); 1502 ic_printf(vap->iv_ic, "%s: unsupported state transition " 1503 "%d (%s) -> %d (%s)\n", __func__, 1504 ostate, ieee80211_state_name[ostate], 1505 nstate, ieee80211_state_name[nstate]); 1506 return (ENOSYS); 1507 } 1508 1509 if (error == EALREADY) { 1510 IMPROVE("make this a debug log later"); 1511 ic_printf(vap->iv_ic, "%s: error %d during state transition " 1512 "%d (%s) -> %d (%s): iv_newstate already handled.\n", 1513 __func__, error, 1514 ostate, ieee80211_state_name[ostate], 1515 nstate, ieee80211_state_name[nstate]); 1516 return (0); 1517 } 1518 1519 if (error != 0) { 1520 /* XXX-BZ currently expected so ignore. */ 1521 ic_printf(vap->iv_ic, "%s: error %d during state transition " 1522 "%d (%s) -> %d (%s)\n", __func__, error, 1523 ostate, ieee80211_state_name[ostate], 1524 nstate, ieee80211_state_name[nstate]); 1525 /* return (error); */ 1526 } 1527 1528 if (debug_80211 & D80211_TRACE) 1529 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x calling net80211 parent\n", 1530 __func__, __LINE__, vap, nstate, arg); 1531 1532 return (lvif->iv_newstate(vap, nstate, arg)); 1533 } 1534 1535 /* -------------------------------------------------------------------------- */ 1536 1537 static int 1538 lkpi_ic_wme_update(struct ieee80211com *ic) 1539 { 1540 /* This needs queuing and go at the right moment. */ 1541 #ifdef WITH_WME_UPDATE 1542 struct ieee80211vap *vap; 1543 struct lkpi_hw *lhw; 1544 struct ieee80211_hw *hw; 1545 struct lkpi_vif *lvif; 1546 struct ieee80211_vif *vif; 1547 struct chanAccParams chp; 1548 struct wmeParams wmeparr[WME_NUM_AC]; 1549 struct ieee80211_tx_queue_params txqp; 1550 enum ieee80211_bss_changed changed; 1551 int error; 1552 uint16_t ac; 1553 #endif 1554 1555 IMPROVE(); 1556 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 1557 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 1558 1559 #ifdef WITH_WME_UPDATE 1560 vap = TAILQ_FIRST(&ic->ic_vaps); 1561 if (vap == NULL) 1562 return (0); 1563 1564 /* We should factor this out into per-vap (*wme_update). */ 1565 lhw = ic->ic_softc; 1566 if (lhw->ops->conf_tx == NULL) 1567 return (0); 1568 1569 /* XXX-BZ check amount of hw queues */ 1570 hw = LHW_TO_HW(lhw); 1571 lvif = VAP_TO_LVIF(vap); 1572 vif = LVIF_TO_VIF(lvif); 1573 1574 ieee80211_wme_ic_getparams(ic, &chp); 1575 IEEE80211_LOCK(ic); 1576 for (ac = 0; ac < WME_NUM_AC; ac++) 1577 wmeparr[ac] = chp.cap_wmeParams[ac]; 1578 IEEE80211_UNLOCK(ic); 1579 1580 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 1581 LKPI_80211_LHW_LOCK(lhw); 1582 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 1583 struct wmeParams *wmep; 1584 1585 /* XXX-BZ should keep this in lvif? */ 1586 wmep = &wmeparr[ac]; 1587 bzero(&txqp, sizeof(txqp)); 1588 txqp.cw_min = wmep->wmep_logcwmin; 1589 txqp.cw_max = wmep->wmep_logcwmax; 1590 txqp.txop = wmep->wmep_txopLimit; 1591 txqp.aifs = wmep->wmep_aifsn; 1592 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 1593 if (error != 0) 1594 printf("%s: conf_tx ac %u failed %d\n", 1595 __func__, ac, error); 1596 } 1597 LKPI_80211_LHW_UNLOCK(lhw); 1598 changed = BSS_CHANGED_QOS; 1599 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 1600 #endif 1601 1602 return (0); 1603 } 1604 1605 static struct ieee80211vap * 1606 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 1607 int unit, enum ieee80211_opmode opmode, int flags, 1608 const uint8_t bssid[IEEE80211_ADDR_LEN], 1609 const uint8_t mac[IEEE80211_ADDR_LEN]) 1610 { 1611 struct lkpi_hw *lhw; 1612 struct ieee80211_hw *hw; 1613 struct lkpi_vif *lvif; 1614 struct ieee80211vap *vap; 1615 struct ieee80211_vif *vif; 1616 enum ieee80211_bss_changed changed; 1617 size_t len; 1618 int error; 1619 1620 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 1621 return (NULL); 1622 1623 lhw = ic->ic_softc; 1624 hw = LHW_TO_HW(lhw); 1625 1626 len = sizeof(*lvif); 1627 len += hw->vif_data_size; /* vif->drv_priv */ 1628 1629 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 1630 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 1631 TAILQ_INIT(&lvif->lsta_head); 1632 vap = LVIF_TO_VAP(lvif); 1633 1634 vif = LVIF_TO_VIF(lvif); 1635 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 1636 vif->p2p = false; 1637 vif->probe_req_reg = false; 1638 vif->type = lkpi_opmode_to_vif_type(opmode); 1639 lvif->wdev.iftype = vif->type; 1640 /* Need to fill in other fields as well. */ 1641 IMPROVE(); 1642 1643 /* XXX-BZ hardcoded for now! */ 1644 #if 1 1645 vif->chanctx_conf = NULL; 1646 vif->bss_conf.idle = true; 1647 vif->bss_conf.ps = false; 1648 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 1649 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 1650 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 1651 vif->bss_conf.qos = false; 1652 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 1653 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 1654 vif->bss_conf.assoc = false; 1655 vif->bss_conf.aid = 0; 1656 #endif 1657 #if 0 1658 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 1659 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 1660 vif->bss_conf.beacon_int = ic->ic_bintval; 1661 /* iwlwifi bug. */ 1662 if (vif->bss_conf.beacon_int < 16) 1663 vif->bss_conf.beacon_int = 16; 1664 #endif 1665 IMPROVE(); 1666 1667 error = lkpi_80211_mo_start(hw); 1668 if (error != 0) { 1669 printf("%s: failed to start hw: %d\n", __func__, error); 1670 mtx_destroy(&lvif->mtx); 1671 free(lvif, M_80211_VAP); 1672 return (NULL); 1673 } 1674 1675 error = lkpi_80211_mo_add_interface(hw, vif); 1676 if (error != 0) { 1677 IMPROVE(); /* XXX-BZ mo_stop()? */ 1678 printf("%s: failed to add interface: %d\n", __func__, error); 1679 mtx_destroy(&lvif->mtx); 1680 free(lvif, M_80211_VAP); 1681 return (NULL); 1682 } 1683 1684 LKPI_80211_LHW_LOCK(lhw); 1685 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 1686 LKPI_80211_LHW_UNLOCK(lhw); 1687 1688 /* Set bss_info. */ 1689 changed = 0; 1690 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 1691 1692 /* conf_tx setup; default WME? */ 1693 1694 /* Force MC init. */ 1695 lkpi_update_mcast_filter(ic, true); 1696 1697 IMPROVE(); 1698 1699 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 1700 1701 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 1702 lvif->iv_newstate = vap->iv_newstate; 1703 vap->iv_newstate = lkpi_iv_newstate; 1704 1705 /* Key management. */ 1706 if (lhw->ops->set_key != NULL) { 1707 #ifdef TRY_HW_CRYPTO 1708 vap->iv_key_set = lkpi_iv_key_set; 1709 vap->iv_key_delete = lkpi_iv_key_delete; 1710 #endif 1711 } 1712 1713 ieee80211_ratectl_init(vap); 1714 1715 /* Complete setup. */ 1716 ieee80211_vap_attach(vap, ieee80211_media_change, 1717 ieee80211_media_status, mac); 1718 1719 if (hw->max_listen_interval == 0) 1720 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 1721 hw->conf.listen_interval = hw->max_listen_interval; 1722 ic->ic_set_channel(ic); 1723 1724 /* XXX-BZ do we need to be able to update these? */ 1725 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 1726 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 1727 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 1728 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 1729 /* any others? */ 1730 IMPROVE(); 1731 1732 return (vap); 1733 } 1734 1735 static void 1736 lkpi_ic_vap_delete(struct ieee80211vap *vap) 1737 { 1738 struct ieee80211com *ic; 1739 struct lkpi_hw *lhw; 1740 struct ieee80211_hw *hw; 1741 struct lkpi_vif *lvif; 1742 struct ieee80211_vif *vif; 1743 1744 lvif = VAP_TO_LVIF(vap); 1745 vif = LVIF_TO_VIF(lvif); 1746 ic = vap->iv_ic; 1747 lhw = ic->ic_softc; 1748 hw = LHW_TO_HW(lhw); 1749 1750 LKPI_80211_LHW_LOCK(lhw); 1751 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 1752 LKPI_80211_LHW_UNLOCK(lhw); 1753 lkpi_80211_mo_remove_interface(hw, vif); 1754 1755 ieee80211_ratectl_deinit(vap); 1756 ieee80211_vap_detach(vap); 1757 mtx_destroy(&lvif->mtx); 1758 free(lvif, M_80211_VAP); 1759 } 1760 1761 static void 1762 lkpi_ic_update_mcast(struct ieee80211com *ic) 1763 { 1764 1765 lkpi_update_mcast_filter(ic, false); 1766 TRACEOK(); 1767 } 1768 1769 static void 1770 lkpi_ic_update_promisc(struct ieee80211com *ic) 1771 { 1772 1773 UNIMPLEMENTED; 1774 } 1775 1776 static void 1777 lkpi_ic_update_chw(struct ieee80211com *ic) 1778 { 1779 1780 UNIMPLEMENTED; 1781 } 1782 1783 /* Start / stop device. */ 1784 static void 1785 lkpi_ic_parent(struct ieee80211com *ic) 1786 { 1787 struct lkpi_hw *lhw; 1788 struct ieee80211_hw *hw; 1789 int error; 1790 bool start_all; 1791 1792 IMPROVE(); 1793 1794 lhw = ic->ic_softc; 1795 hw = LHW_TO_HW(lhw); 1796 start_all = false; 1797 1798 if (ic->ic_nrunning > 0) { 1799 error = lkpi_80211_mo_start(hw); 1800 if (error == 0) 1801 start_all = true; 1802 } else { 1803 lkpi_80211_mo_stop(hw); 1804 } 1805 1806 if (start_all) 1807 ieee80211_start_all(ic); 1808 } 1809 1810 bool 1811 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 1812 size_t ie_ids_len) 1813 { 1814 int i; 1815 1816 for (i = 0; i < ie_ids_len; i++) { 1817 if (ie == *ie_ids) 1818 return (true); 1819 } 1820 1821 return (false); 1822 } 1823 1824 /* Return true if skipped; false if error. */ 1825 bool 1826 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 1827 { 1828 size_t x; 1829 uint8_t l; 1830 1831 x = *xp; 1832 1833 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 1834 __func__, x, ies_len, ies)); 1835 l = ies[x + 1]; 1836 x += 2 + l; 1837 1838 if (x > ies_len) 1839 return (false); 1840 1841 *xp = x; 1842 return (true); 1843 } 1844 1845 static int 1846 lkpi_ieee80211_probereq_ie_alloc(struct ieee80211vap *vap, 1847 struct ieee80211com *ic, struct ieee80211_scan_ies *scan_ies, 1848 const uint8_t *ssid, size_t ssidlen) 1849 { 1850 1851 return (ieee80211_probereq_ie(vap, ic, 1852 &scan_ies->common_ies, &scan_ies->common_ie_len, 1853 ssid, ssidlen, true)); 1854 } 1855 1856 static void 1857 lkpi_ic_scan_start(struct ieee80211com *ic) 1858 { 1859 struct lkpi_hw *lhw; 1860 struct ieee80211_hw *hw; 1861 struct lkpi_vif *lvif; 1862 struct ieee80211_vif *vif; 1863 struct ieee80211_scan_state *ss; 1864 struct ieee80211vap *vap; 1865 int error; 1866 1867 lhw = ic->ic_softc; 1868 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) { 1869 /* A scan is still running. */ 1870 return; 1871 } 1872 1873 ss = ic->ic_scan; 1874 vap = ss->ss_vap; 1875 if (vap->iv_state != IEEE80211_S_SCAN) { 1876 /* Do not start a scan for now. */ 1877 return; 1878 } 1879 1880 hw = LHW_TO_HW(lhw); 1881 if ((ic->ic_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) == 0) { 1882 1883 lvif = VAP_TO_LVIF(vap); 1884 vif = LVIF_TO_VIF(lvif); 1885 1886 if (vap->iv_state == IEEE80211_S_SCAN) 1887 lkpi_hw_conf_idle(hw, false); 1888 1889 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 1890 /* net80211::scan_start() handled PS for us. */ 1891 IMPROVE(); 1892 /* XXX Also means it is too late to flush queues? 1893 * need to check iv_sta_ps or overload? */ 1894 /* XXX want to adjust ss end time/ maxdwell? */ 1895 1896 } else { 1897 struct ieee80211_channel *c; 1898 struct ieee80211_scan_request *hw_req; 1899 struct linuxkpi_ieee80211_channel *lc, **cpp; 1900 struct cfg80211_ssid *ssids; 1901 struct cfg80211_scan_6ghz_params *s6gp; 1902 size_t chan_len, nchan, ssids_len, s6ghzlen; 1903 int i; 1904 1905 ssids_len = ss->ss_nssid * sizeof(*ssids);; 1906 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 1907 1908 nchan = 0; 1909 for (i = ss->ss_next; i < ss->ss_last; i++) 1910 nchan++; 1911 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 1912 1913 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 1914 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 1915 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 1916 s6ghzlen + chan_len, M_LKPI80211, M_WAITOK | M_ZERO); 1917 1918 error = lkpi_ieee80211_probereq_ie_alloc(vap, ic, 1919 &hw_req->ies, NULL, -1); 1920 if (error != 0) 1921 ic_printf(ic, "ERROR: %s: probereq_ie returned %d\n", 1922 __func__, error); 1923 1924 hw_req->req.flags = 0; /* XXX ??? */ 1925 /* hw_req->req.wdev */ 1926 hw_req->req.wiphy = hw->wiphy; 1927 hw_req->req.no_cck = false; /* XXX */ 1928 #if 0 1929 /* This seems to pessimise default scanning behaviour. */ 1930 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 1931 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 1932 #endif 1933 #ifdef __notyet__ 1934 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 1935 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 1936 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 1937 #endif 1938 #if 0 1939 hw_req->req.ie_len = ; 1940 hw_req->req.ie = ; 1941 #endif 1942 1943 hw_req->req.n_channels = nchan; 1944 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 1945 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 1946 for (i = 0; i < nchan; i++) { 1947 *(cpp + i) = 1948 (struct linuxkpi_ieee80211_channel *)(lc + i); 1949 } 1950 for (i = 0; i < nchan; i++) { 1951 c = ss->ss_chans[ss->ss_next + i]; 1952 1953 lc->hw_value = c->ic_ieee; 1954 lc->center_freq = c->ic_freq; 1955 /* lc->flags */ 1956 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 1957 lc->max_power = c->ic_maxpower; 1958 /* lc-> ... */ 1959 lc++; 1960 } 1961 1962 hw_req->req.n_ssids = ss->ss_nssid; 1963 if (hw_req->req.n_ssids > 0) { 1964 ssids = (struct cfg80211_ssid *)lc; 1965 hw_req->req.ssids = ssids; 1966 for (i = 0; i < ss->ss_nssid; i++) { 1967 ssids->ssid_len = ss->ss_ssid[i].len; 1968 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 1969 ss->ss_ssid[i].len); 1970 ssids++; 1971 } 1972 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 1973 } else { 1974 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 1975 } 1976 1977 /* 6GHz one day. */ 1978 hw_req->req.n_6ghz_params = 0; 1979 hw_req->req.scan_6ghz_params = NULL; 1980 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 1981 /* s6gp->... */ 1982 1983 lvif = VAP_TO_LVIF(vap); 1984 vif = LVIF_TO_VIF(lvif); 1985 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 1986 if (error != 0) { 1987 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 1988 __func__, error); 1989 ieee80211_cancel_scan(vap); 1990 free(hw_req->ies.common_ies, M_80211_VAP); 1991 free(hw_req, M_LKPI80211); 1992 lhw->hw_req = NULL; 1993 } 1994 } 1995 } 1996 1997 static void 1998 lkpi_ic_scan_end(struct ieee80211com *ic) 1999 { 2000 struct lkpi_hw *lhw; 2001 2002 lhw = ic->ic_softc; 2003 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2004 return; 2005 } 2006 2007 if (ic->ic_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2008 /* Nothing to do. */ 2009 } else { 2010 struct ieee80211_hw *hw; 2011 struct lkpi_vif *lvif; 2012 struct ieee80211_vif *vif; 2013 struct ieee80211_scan_state *ss; 2014 struct ieee80211vap *vap; 2015 2016 hw = LHW_TO_HW(lhw); 2017 ss = ic->ic_scan; 2018 vap = ss->ss_vap; 2019 lvif = VAP_TO_LVIF(vap); 2020 vif = LVIF_TO_VIF(lvif); 2021 lkpi_80211_mo_sw_scan_complete(hw, vif); 2022 2023 /* Send PS to stop buffering if n80211 does not for us? */ 2024 2025 if (vap->iv_state == IEEE80211_S_SCAN) 2026 lkpi_hw_conf_idle(hw, true); 2027 } 2028 } 2029 2030 static void 2031 lkpi_ic_scan_curchan_nada(struct ieee80211_scan_state *ss __unused, 2032 unsigned long maxdwell __unused) 2033 { 2034 } 2035 2036 static void 2037 lkpi_ic_set_channel(struct ieee80211com *ic) 2038 { 2039 struct lkpi_hw *lhw; 2040 struct ieee80211_hw *hw; 2041 int error; 2042 2043 lhw = ic->ic_softc; 2044 #ifdef __no_longer__ 2045 /* For now only be concerned if scanning. */ 2046 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2047 IMPROVE(); 2048 return; 2049 } 2050 #endif 2051 2052 if (ic->ic_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2053 /* 2054 * AP scanning is taken care of by firmware, so only switch 2055 * channels in monitor mode (maybe, maybe not; to be 2056 * investigated at the right time). 2057 */ 2058 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 2059 UNIMPLEMENTED; 2060 } 2061 } else { 2062 struct ieee80211_channel *c = ic->ic_curchan; 2063 struct linuxkpi_ieee80211_channel *chan; 2064 struct cfg80211_chan_def chandef; 2065 2066 if (c == NULL || c == IEEE80211_CHAN_ANYC || 2067 lhw->ops->config == NULL) { 2068 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2069 c, lhw->ops->config); 2070 return; 2071 } 2072 2073 chan = lkpi_find_lkpi80211_chan(lhw, c); 2074 if (chan == NULL) { 2075 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2076 c, chan); 2077 return; 2078 } 2079 2080 memset(&chandef, 0, sizeof(chandef)); 2081 chandef.chan = chan; 2082 chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2083 chandef.center_freq1 = chandef.chan->center_freq; 2084 2085 /* XXX max power for scanning? */ 2086 IMPROVE(); 2087 2088 hw = LHW_TO_HW(lhw); 2089 hw->conf.chandef = chandef; 2090 2091 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2092 if (error != 0 && error != EOPNOTSUPP) { 2093 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2094 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2095 /* XXX should we unroll to the previous chandef? */ 2096 IMPROVE(); 2097 } else { 2098 /* Update radiotap channels as well. */ 2099 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2100 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2101 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2102 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2103 } 2104 2105 /* Currently PS is hard coded off! Not sure it belongs here. */ 2106 IMPROVE(); 2107 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2108 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2109 hw->conf.flags &= ~IEEE80211_CONF_PS; 2110 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2111 if (error != 0 && error != EOPNOTSUPP) 2112 ic_printf(ic, "ERROR: %s: config %#0x returned " 2113 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2114 error); 2115 } 2116 } 2117 } 2118 2119 static struct ieee80211_node * 2120 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2121 const uint8_t mac[IEEE80211_ADDR_LEN]) 2122 { 2123 struct ieee80211com *ic; 2124 struct lkpi_hw *lhw; 2125 struct ieee80211_hw *hw; 2126 struct lkpi_sta *lsta; 2127 struct ieee80211_sta *sta; 2128 struct lkpi_vif *lvif; 2129 struct ieee80211_vif *vif; 2130 struct ieee80211_node *ni; 2131 int tid; 2132 2133 ic = vap->iv_ic; 2134 lhw = ic->ic_softc; 2135 2136 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2137 if (lhw->ic_node_alloc != NULL) { 2138 ni = lhw->ic_node_alloc(vap, mac); 2139 if (ni == NULL) 2140 return (NULL); 2141 } 2142 2143 hw = LHW_TO_HW(lhw); 2144 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 2145 M_NOWAIT | M_ZERO); 2146 if (lsta == NULL) { 2147 if (lhw->ic_node_free != NULL) 2148 lhw->ic_node_free(ni); 2149 return (NULL); 2150 } 2151 2152 lsta->added_to_drv = false; 2153 lsta->state = IEEE80211_STA_NOTEXIST; 2154 #if 0 2155 /* 2156 * This needs to be done in node_init() as ieee80211_alloc_node() 2157 * will initialise the refcount after us. 2158 */ 2159 lsta->ni = ieee80211_ref_node(ni); 2160 #endif 2161 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 2162 ni->ni_drv_data = lsta; 2163 2164 lvif = VAP_TO_LVIF(vap); 2165 vif = LVIF_TO_VIF(lvif); 2166 sta = LSTA_TO_STA(lsta); 2167 2168 IEEE80211_ADDR_COPY(sta->addr, mac); 2169 for (tid = 0; tid < nitems(sta->txq); tid++) { 2170 struct lkpi_txq *ltxq; 2171 2172 /* 2173 * We are neither limiting ourselves to hw.queues here, 2174 * nor do we check if driver wants IEEE80211_NUM_TIDS queue. 2175 */ 2176 2177 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 2178 M_LKPI80211, M_NOWAIT | M_ZERO); 2179 if (ltxq == NULL) 2180 goto cleanup; 2181 ltxq->seen_dequeue = false; 2182 skb_queue_head_init(<xq->skbq); 2183 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 2184 if (tid == IEEE80211_NUM_TIDS) { 2185 IMPROVE(); 2186 ltxq->txq.ac = IEEE80211_AC_VO; 2187 } else { 2188 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 2189 } 2190 ltxq->txq.tid = tid; 2191 ltxq->txq.sta = sta; 2192 ltxq->txq.vif = vif; 2193 sta->txq[tid] = <xq->txq; 2194 } 2195 2196 /* Deferred TX path. */ 2197 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 2198 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 2199 mbufq_init(&lsta->txq, IFQ_MAXLEN); 2200 2201 return (ni); 2202 2203 cleanup: 2204 for (; tid >= 0; tid--) 2205 free(sta->txq[tid], M_LKPI80211); 2206 free(lsta, M_LKPI80211); 2207 if (lhw->ic_node_free != NULL) 2208 lhw->ic_node_free(ni); 2209 return (NULL); 2210 } 2211 2212 static int 2213 lkpi_ic_node_init(struct ieee80211_node *ni) 2214 { 2215 struct ieee80211com *ic; 2216 struct lkpi_hw *lhw; 2217 struct lkpi_sta *lsta; 2218 struct lkpi_vif *lvif; 2219 int error; 2220 2221 ic = ni->ni_ic; 2222 lhw = ic->ic_softc; 2223 2224 if (lhw->ic_node_init != NULL) { 2225 error = lhw->ic_node_init(ni); 2226 if (error != 0) 2227 return (error); 2228 } 2229 2230 lvif = VAP_TO_LVIF(ni->ni_vap); 2231 2232 lsta = ni->ni_drv_data; 2233 2234 /* Now take the reference before linking it to the table. */ 2235 lsta->ni = ieee80211_ref_node(ni); 2236 2237 LKPI_80211_LVIF_LOCK(lvif); 2238 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 2239 LKPI_80211_LVIF_UNLOCK(lvif); 2240 2241 /* XXX-BZ Sync other state over. */ 2242 IMPROVE(); 2243 2244 return (0); 2245 } 2246 2247 static void 2248 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2249 { 2250 struct ieee80211com *ic; 2251 struct lkpi_hw *lhw; 2252 2253 ic = ni->ni_ic; 2254 lhw = ic->ic_softc; 2255 2256 /* XXX-BZ remove from driver, ... */ 2257 IMPROVE(); 2258 2259 if (lhw->ic_node_cleanup != NULL) 2260 lhw->ic_node_cleanup(ni); 2261 } 2262 2263 static void 2264 lkpi_ic_node_free(struct ieee80211_node *ni) 2265 { 2266 struct ieee80211com *ic; 2267 struct lkpi_hw *lhw; 2268 struct lkpi_sta *lsta; 2269 2270 ic = ni->ni_ic; 2271 lhw = ic->ic_softc; 2272 lsta = ni->ni_drv_data; 2273 2274 /* XXX-BZ free resources, ... */ 2275 IMPROVE(); 2276 2277 /* Flush mbufq (make sure to release ni refs!). */ 2278 #ifdef __notyet__ 2279 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2280 __func__, lsta, mbufq_len(&lsta->txq))); 2281 #endif 2282 /* Drain taskq. */ 2283 2284 /* Drain sta->txq[] */ 2285 mtx_destroy(&lsta->txq_mtx); 2286 2287 /* Remove lsta if added_to_drv. */ 2288 /* Remove lsta from vif */ 2289 2290 /* remove ref from lsta node... */ 2291 2292 if (lhw->ic_node_free != NULL) 2293 lhw->ic_node_free(ni); 2294 2295 /* Free lsta. */ 2296 } 2297 2298 static int 2299 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2300 const struct ieee80211_bpf_params *params __unused) 2301 { 2302 struct lkpi_sta *lsta; 2303 2304 lsta = ni->ni_drv_data; 2305 2306 /* Queue the packet and enqueue the task to handle it. */ 2307 LKPI_80211_LSTA_LOCK(lsta); 2308 mbufq_enqueue(&lsta->txq, m); 2309 LKPI_80211_LSTA_UNLOCK(lsta); 2310 2311 if (debug_80211 & D80211_TRACE_TX) 2312 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2313 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2314 mbufq_len(&lsta->txq)); 2315 2316 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2317 return (0); 2318 } 2319 2320 static void 2321 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2322 { 2323 struct ieee80211_node *ni; 2324 struct ieee80211_frame *wh; 2325 struct ieee80211_key *k; 2326 struct sk_buff *skb; 2327 struct ieee80211com *ic; 2328 struct lkpi_hw *lhw; 2329 struct ieee80211_hw *hw; 2330 struct lkpi_vif *lvif; 2331 struct ieee80211_vif *vif; 2332 struct ieee80211_channel *c; 2333 struct ieee80211_tx_control control; 2334 struct ieee80211_tx_info *info; 2335 struct ieee80211_sta *sta; 2336 void *buf; 2337 int ac; 2338 2339 M_ASSERTPKTHDR(m); 2340 #ifdef LINUXKPI_DEBUG_80211 2341 if (debug_80211 & D80211_TRACE_TX_DUMP) 2342 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2343 #endif 2344 2345 ni = lsta->ni; 2346 #ifndef TRY_HW_CRYPTO 2347 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2348 wh = mtod(m, struct ieee80211_frame *); 2349 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2350 /* Retrieve key for TX && do software encryption. */ 2351 k = ieee80211_crypto_encap(ni, m); 2352 if (k == NULL) { 2353 ieee80211_free_node(ni); 2354 m_freem(m); 2355 return; 2356 } 2357 } 2358 #endif 2359 2360 ic = ni->ni_ic; 2361 lhw = ic->ic_softc; 2362 hw = LHW_TO_HW(lhw); 2363 c = ni->ni_chan; 2364 2365 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 2366 struct lkpi_radiotap_tx_hdr *rtap; 2367 2368 rtap = &lhw->rtap_tx; 2369 rtap->wt_flags = 0; 2370 if (k != NULL) 2371 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2372 if (m->m_flags & M_FRAG) 2373 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 2374 IMPROVE(); 2375 rtap->wt_rate = 0; 2376 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 2377 rtap->wt_chan_freq = htole16(c->ic_freq); 2378 rtap->wt_chan_flags = htole16(c->ic_flags); 2379 } 2380 2381 ieee80211_radiotap_tx(ni->ni_vap, m); 2382 } 2383 2384 /* 2385 * net80211 should handle hw->extra_tx_headroom. 2386 * Though for as long as we are copying we don't mind. 2387 */ 2388 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 2389 if (skb == NULL) { 2390 printf("XXX ERROR %s: skb alloc failed\n", __func__); 2391 ieee80211_free_node(ni); 2392 m_freem(m); 2393 return; 2394 } 2395 skb_reserve(skb, hw->extra_tx_headroom); 2396 2397 /* XXX-BZ we need a SKB version understanding mbuf. */ 2398 /* Save the mbuf for ieee80211_tx_complete(). */ 2399 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 2400 skb->m = m; 2401 #if 0 2402 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 2403 #else 2404 buf = skb_put(skb, m->m_pkthdr.len); 2405 m_copydata(m, 0, m->m_pkthdr.len, buf); 2406 #endif 2407 /* Save the ni. */ 2408 m->m_pkthdr.PH_loc.ptr = ni; 2409 2410 lvif = VAP_TO_LVIF(ni->ni_vap); 2411 vif = LVIF_TO_VIF(lvif); 2412 2413 /* XXX-BZ review this at some point [4] vs. [8] vs. [16](TID). */ 2414 ac = M_WME_GETAC(m); 2415 skb->priority = WME_AC_TO_TID(ac); 2416 ac = lkpi_ac_net_to_l80211(ac); 2417 skb_set_queue_mapping(skb, ac); 2418 2419 info = IEEE80211_SKB_CB(skb); 2420 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 2421 /* Slight delay; probably only happens on scanning so fine? */ 2422 if (c == NULL || c == IEEE80211_CHAN_ANYC) 2423 c = ic->ic_curchan; 2424 info->band = lkpi_net80211_chan_to_nl80211_band(c); 2425 info->hw_queue = ac; /* XXX-BZ is this correct? */ 2426 if (m->m_flags & M_EAPOL) 2427 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 2428 info->control.vif = vif; 2429 /* XXX-BZ info->control.rates */ 2430 2431 lsta = lkpi_find_lsta_by_ni(lvif, ni); 2432 if (lsta != NULL) { 2433 sta = LSTA_TO_STA(lsta); 2434 #ifdef TRY_HW_CRYPTO 2435 info->control.hw_key = lsta->kc; 2436 #endif 2437 } else { 2438 sta = NULL; 2439 } 2440 2441 IMPROVE(); 2442 2443 if (sta != NULL) { 2444 struct lkpi_txq *ltxq; 2445 2446 ltxq = TXQ_TO_LTXQ(sta->txq[ac]); /* XXX-BZ re-check */ 2447 /* 2448 * We currently do not use queues but do direct TX. 2449 * The exception to the rule is initial packets, as we cannot 2450 * TX until queues are allocated (at least for iwlwifi). 2451 * So we wake_tx_queue in newstate and register any dequeue 2452 * calls. In the time until then we queue packets and 2453 * let the driver deal with them. 2454 */ 2455 if (!ltxq->seen_dequeue) { 2456 2457 /* Prevent an ordering problem, likely other issues. */ 2458 while (!skb_queue_empty(<xq->skbq)) { 2459 struct sk_buff *skb2; 2460 2461 skb2 = skb_dequeue(<xq->skbq); 2462 if (skb2 != NULL) { 2463 memset(&control, 0, sizeof(control)); 2464 control.sta = sta; 2465 lkpi_80211_mo_tx(hw, &control, skb2); 2466 } 2467 } 2468 goto ops_tx; 2469 } 2470 if (0 && ltxq->seen_dequeue && skb_queue_empty(<xq->skbq)) 2471 goto ops_tx; 2472 2473 skb_queue_tail(<xq->skbq, skb); 2474 if (debug_80211 & D80211_TRACE_TX) 2475 printf("%s:%d lsta %p sta %p ni %p %6D skb %p lxtq %p " 2476 "qlen %u WAKE_TX_Q ac %d prio %u qmap %u\n", 2477 __func__, __LINE__, lsta, sta, ni, 2478 ni->ni_macaddr, ":", skb, ltxq, 2479 skb_queue_len(<xq->skbq), ac, 2480 skb->priority, skb->qmap); 2481 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[ac]); /* XXX-BZ */ 2482 return; 2483 } 2484 2485 ops_tx: 2486 if (debug_80211 & D80211_TRACE_TX) 2487 printf("%s:%d lsta %p sta %p ni %p %6D skb %p TX ac %d prio %u qmap %u\n", 2488 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 2489 skb, ac, skb->priority, skb->qmap); 2490 memset(&control, 0, sizeof(control)); 2491 control.sta = sta; 2492 2493 lkpi_80211_mo_tx(hw, &control, skb); 2494 return; 2495 } 2496 2497 static void 2498 lkpi_80211_txq_task(void *ctx, int pending) 2499 { 2500 struct lkpi_sta *lsta; 2501 struct ieee80211_node *ni; 2502 struct mbufq mq; 2503 struct mbuf *m; 2504 2505 lsta = ctx; 2506 ni = lsta->ni; 2507 2508 if (debug_80211 & D80211_TRACE_TX) 2509 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 2510 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2511 pending, mbufq_len(&lsta->txq)); 2512 2513 mbufq_init(&mq, IFQ_MAXLEN); 2514 2515 LKPI_80211_LSTA_LOCK(lsta); 2516 mbufq_concat(&mq, &lsta->txq); 2517 LKPI_80211_LSTA_UNLOCK(lsta); 2518 2519 m = mbufq_dequeue(&mq); 2520 while (m != NULL) { 2521 lkpi_80211_txq_tx_one(lsta, m); 2522 m = mbufq_dequeue(&mq); 2523 } 2524 } 2525 2526 static int 2527 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 2528 { 2529 2530 /* XXX TODO */ 2531 IMPROVE(); 2532 2533 /* Quick and dirty cheating hack. */ 2534 struct ieee80211_node *ni; 2535 2536 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2537 return (lkpi_ic_raw_xmit(ni, m, NULL)); 2538 } 2539 2540 static void 2541 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 2542 int *n, struct ieee80211_channel *c) 2543 { 2544 struct lkpi_hw *lhw; 2545 struct ieee80211_hw *hw; 2546 struct linuxkpi_ieee80211_channel *channels; 2547 uint8_t bands[IEEE80211_MODE_BYTES]; 2548 int chan_flags, error, i, nchans; 2549 2550 /* Channels */ 2551 lhw = ic->ic_softc; 2552 hw = LHW_TO_HW(lhw); 2553 2554 /* NL80211_BAND_2GHZ */ 2555 nchans = 0; 2556 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 2557 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 2558 if (nchans > 0) { 2559 memset(bands, 0, sizeof(bands)); 2560 chan_flags = 0; 2561 setbit(bands, IEEE80211_MODE_11B); 2562 /* XXX-BZ unclear how to check for 11g. */ 2563 setbit(bands, IEEE80211_MODE_11G); 2564 #ifdef __notyet__ 2565 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 2566 setbit(bands, IEEE80211_MODE_11NG); 2567 chan_flags |= NET80211_CBW_FLAG_HT40; 2568 } 2569 #endif 2570 2571 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 2572 for (i = 0; i < nchans; i++) { 2573 uint32_t nflags = 0; 2574 int cflags = chan_flags; 2575 2576 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 2577 printf("%s: %s: Skipping disabled chan " 2578 "[%u/%u/%#x]\n", ic->ic_name, __func__, 2579 channels[i].hw_value, 2580 channels[i].center_freq, channels[i].flags); 2581 continue; 2582 } 2583 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 2584 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 2585 if (channels[i].flags & IEEE80211_CHAN_RADAR) 2586 nflags |= IEEE80211_CHAN_DFS; 2587 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 2588 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 2589 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 2590 cflags &= ~NET80211_CBW_FLAG_VHT80; 2591 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 2592 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 2593 cflags &= ~NET80211_CBW_FLAG_HT40; 2594 2595 error = ieee80211_add_channel_cbw(c, maxchan, n, 2596 channels[i].hw_value, channels[i].center_freq, 2597 channels[i].max_power, 2598 nflags, bands, chan_flags); 2599 if (error != 0) { 2600 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 2601 "returned error %d\n", ic->ic_name, 2602 __func__, channels[i].hw_value, 2603 channels[i].center_freq, channels[i].flags, 2604 nflags, chan_flags, cflags, error); 2605 break; 2606 } 2607 } 2608 } 2609 2610 /* NL80211_BAND_5GHZ */ 2611 nchans = 0; 2612 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 2613 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 2614 if (nchans > 0) { 2615 memset(bands, 0, sizeof(bands)); 2616 chan_flags = 0; 2617 setbit(bands, IEEE80211_MODE_11A); 2618 #ifdef __not_yet__ 2619 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 2620 setbit(bands, IEEE80211_MODE_11NA); 2621 chan_flags |= NET80211_CBW_FLAG_HT40; 2622 } 2623 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 2624 2625 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 2626 ic->ic_vhtcaps = 2627 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 2628 2629 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 2630 chan_flags |= NET80211_CBW_FLAG_VHT80; 2631 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 2632 ic->ic_vhtcaps)) 2633 chan_flags |= NET80211_CBW_FLAG_VHT160; 2634 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 2635 ic->ic_vhtcaps)) 2636 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 2637 } 2638 #endif 2639 2640 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 2641 for (i = 0; i < nchans; i++) { 2642 uint32_t nflags = 0; 2643 int cflags = chan_flags; 2644 2645 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 2646 printf("%s: %s: Skipping disabled chan " 2647 "[%u/%u/%#x]\n", ic->ic_name, __func__, 2648 channels[i].hw_value, 2649 channels[i].center_freq, channels[i].flags); 2650 continue; 2651 } 2652 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 2653 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 2654 if (channels[i].flags & IEEE80211_CHAN_RADAR) 2655 nflags |= IEEE80211_CHAN_DFS; 2656 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 2657 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 2658 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 2659 cflags &= ~NET80211_CBW_FLAG_VHT80; 2660 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 2661 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 2662 cflags &= ~NET80211_CBW_FLAG_HT40; 2663 2664 error = ieee80211_add_channel_cbw(c, maxchan, n, 2665 channels[i].hw_value, channels[i].center_freq, 2666 channels[i].max_power, 2667 nflags, bands, chan_flags); 2668 if (error != 0) { 2669 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 2670 "returned error %d\n", ic->ic_name, 2671 __func__, channels[i].hw_value, 2672 channels[i].center_freq, channels[i].flags, 2673 nflags, chan_flags, cflags, error); 2674 break; 2675 } 2676 } 2677 } 2678 } 2679 2680 static void * 2681 lkpi_ieee80211_ifalloc(void) 2682 { 2683 struct ieee80211com *ic; 2684 2685 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 2686 if (ic == NULL) 2687 return (NULL); 2688 2689 /* Setting these happens later when we have device information. */ 2690 ic->ic_softc = NULL; 2691 ic->ic_name = "linuxkpi"; 2692 2693 return (ic); 2694 } 2695 2696 struct ieee80211_hw * 2697 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 2698 { 2699 struct ieee80211_hw *hw; 2700 struct lkpi_hw *lhw; 2701 struct wiphy *wiphy; 2702 2703 /* Get us and the driver data also allocated. */ 2704 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 2705 if (wiphy == NULL) 2706 return (NULL); 2707 2708 lhw = wiphy_priv(wiphy); 2709 lhw->ops = ops; 2710 lhw->workq = alloc_ordered_workqueue(wiphy_name(wiphy), 0); 2711 if (lhw->workq == NULL) { 2712 wiphy_free(wiphy); 2713 return (NULL); 2714 } 2715 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 2716 TAILQ_INIT(&lhw->lvif_head); 2717 2718 /* 2719 * XXX-BZ TODO make sure there is a "_null" function to all ops 2720 * not initialized. 2721 */ 2722 hw = LHW_TO_HW(lhw); 2723 hw->wiphy = wiphy; 2724 hw->conf.flags |= IEEE80211_CONF_IDLE; 2725 hw->priv = (void *)(lhw + 1); 2726 2727 /* BSD Specific. */ 2728 lhw->ic = lkpi_ieee80211_ifalloc(); 2729 if (lhw->ic == NULL) { 2730 ieee80211_free_hw(hw); 2731 return (NULL); 2732 } 2733 2734 IMPROVE(); 2735 2736 return (hw); 2737 } 2738 2739 void 2740 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 2741 { 2742 struct lkpi_hw *lhw; 2743 2744 lhw = HW_TO_LHW(hw); 2745 free(lhw->ic, M_LKPI80211); 2746 lhw->ic = NULL; 2747 2748 /* Cleanup more of lhw here or in wiphy_free()? */ 2749 mtx_destroy(&lhw->mtx); 2750 IMPROVE(); 2751 } 2752 2753 void 2754 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 2755 { 2756 struct lkpi_hw *lhw; 2757 struct ieee80211com *ic; 2758 2759 lhw = HW_TO_LHW(hw); 2760 ic = lhw->ic; 2761 2762 /* Now set a proper name before ieee80211_ifattach(). */ 2763 ic->ic_softc = lhw; 2764 ic->ic_name = name; 2765 2766 /* XXX-BZ do we also need to set wiphy name? */ 2767 } 2768 2769 struct ieee80211_hw * 2770 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 2771 { 2772 struct lkpi_hw *lhw; 2773 2774 lhw = wiphy_priv(wiphy); 2775 return (LHW_TO_HW(lhw)); 2776 } 2777 2778 static void 2779 lkpi_radiotap_attach(struct lkpi_hw *lhw) 2780 { 2781 struct ieee80211com *ic; 2782 2783 ic = lhw->ic; 2784 ieee80211_radiotap_attach(ic, 2785 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 2786 LKPI_RTAP_TX_FLAGS_PRESENT, 2787 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 2788 LKPI_RTAP_RX_FLAGS_PRESENT); 2789 } 2790 2791 void 2792 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 2793 { 2794 struct ieee80211com *ic; 2795 struct lkpi_hw *lhw; 2796 #ifdef TRY_HW_CRYPTO 2797 int i; 2798 #endif 2799 2800 lhw = HW_TO_LHW(hw); 2801 ic = lhw->ic; 2802 2803 /* XXX-BZ figure this out how they count his... */ 2804 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 2805 IEEE80211_ADDR_COPY(ic->ic_macaddr, 2806 hw->wiphy->perm_addr); 2807 } else if (hw->wiphy->n_addresses > 0) { 2808 /* We take the first one. */ 2809 IEEE80211_ADDR_COPY(ic->ic_macaddr, 2810 hw->wiphy->addresses[0].addr); 2811 } else { 2812 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 2813 } 2814 2815 ic->ic_headroom = hw->extra_tx_headroom; 2816 2817 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 2818 ic->ic_opmode = IEEE80211_M_STA; 2819 2820 /* Set device capabilities. */ 2821 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 2822 ic->ic_caps = 2823 IEEE80211_C_STA | 2824 IEEE80211_C_MONITOR | 2825 IEEE80211_C_WPA | /* WPA/RSN */ 2826 IEEE80211_C_WME | 2827 #if 0 2828 IEEE80211_C_PMGT | 2829 #endif 2830 IEEE80211_C_SHSLOT | /* short slot time supported */ 2831 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 2832 ; 2833 #if 0 2834 /* Scanning is a different kind of beast to re-work. */ 2835 ic->ic_caps |= IEEE80211_C_BGSCAN; 2836 #endif 2837 if (lhw->ops->hw_scan && 2838 ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2839 /* Advertise full-offload scanning */ 2840 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 2841 } 2842 2843 #ifdef __notyet__ 2844 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 2845 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 2846 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 2847 | IEEE80211_HTCAP_MAXAMSDU_3839 2848 /* max A-MSDU length */ 2849 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 2850 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 2851 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 2852 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 2853 #endif 2854 2855 ic->ic_cryptocaps = 0; 2856 #ifdef TRY_HW_CRYPTO 2857 if (hw->wiphy->n_cipher_suites > 0) { 2858 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 2859 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 2860 hw->wiphy->cipher_suites[i]); 2861 } 2862 #endif 2863 2864 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 2865 ic->ic_channels); 2866 2867 ieee80211_ifattach(ic); 2868 2869 ic->ic_update_mcast = lkpi_ic_update_mcast; 2870 ic->ic_update_promisc = lkpi_ic_update_promisc; 2871 ic->ic_update_chw = lkpi_ic_update_chw; 2872 ic->ic_parent = lkpi_ic_parent; 2873 ic->ic_scan_start = lkpi_ic_scan_start; 2874 ic->ic_scan_end = lkpi_ic_scan_end; 2875 if (lhw->ops->hw_scan && 2876 ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) 2877 ic->ic_scan_curchan = lkpi_ic_scan_curchan_nada; 2878 ic->ic_set_channel = lkpi_ic_set_channel; 2879 ic->ic_transmit = lkpi_ic_transmit; 2880 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 2881 ic->ic_vap_create = lkpi_ic_vap_create; 2882 ic->ic_vap_delete = lkpi_ic_vap_delete; 2883 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 2884 ic->ic_wme.wme_update = lkpi_ic_wme_update; 2885 2886 lhw->ic_node_alloc = ic->ic_node_alloc; 2887 ic->ic_node_alloc = lkpi_ic_node_alloc; 2888 lhw->ic_node_init = ic->ic_node_init; 2889 ic->ic_node_init = lkpi_ic_node_init; 2890 lhw->ic_node_cleanup = ic->ic_node_cleanup; 2891 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 2892 lhw->ic_node_free = ic->ic_node_free; 2893 ic->ic_node_free = lkpi_ic_node_free; 2894 2895 lkpi_radiotap_attach(lhw); 2896 2897 if (bootverbose) 2898 ieee80211_announce(ic); 2899 } 2900 2901 void 2902 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 2903 { 2904 struct lkpi_hw *lhw; 2905 struct ieee80211com *ic; 2906 2907 lhw = HW_TO_LHW(hw); 2908 ic = lhw->ic; 2909 ieee80211_ifdetach(ic); 2910 } 2911 2912 void 2913 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 2914 enum ieee80211_iface_iter flags, 2915 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 2916 void *arg) 2917 { 2918 struct lkpi_hw *lhw; 2919 struct lkpi_vif *lvif; 2920 struct ieee80211_vif *vif; 2921 bool active, atomic; 2922 2923 lhw = HW_TO_LHW(hw); 2924 2925 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 2926 IEEE80211_IFACE_ITER_RESUME_ALL| 2927 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 2928 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 2929 __func__, flags); 2930 } 2931 2932 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 2933 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 2934 2935 if (atomic) 2936 LKPI_80211_LHW_LOCK(lhw); 2937 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 2938 struct ieee80211vap *vap; 2939 2940 vif = LVIF_TO_VIF(lvif); 2941 2942 /* 2943 * If we want "active" interfaces, we need to distinguish on 2944 * whether the driver knows about them or not to be able to 2945 * handle the "resume" case correctly. Skip the ones the 2946 * driver does not know about. 2947 */ 2948 if (active && !lvif->added_to_drv && 2949 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 2950 continue; 2951 2952 /* 2953 * Run the iterator function if we are either not asking 2954 * asking for active only or if the VAP is "running". 2955 */ 2956 /* XXX-BZ probably should have state in the lvif as well. */ 2957 vap = LVIF_TO_VAP(lvif); 2958 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 2959 iterfunc(arg, vif->addr, vif); 2960 } 2961 if (atomic) 2962 LKPI_80211_LHW_UNLOCK(lhw); 2963 } 2964 2965 void 2966 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 2967 struct ieee80211_vif *vif, 2968 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 2969 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 2970 void *arg) 2971 { 2972 2973 UNIMPLEMENTED; 2974 } 2975 2976 void 2977 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 2978 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 2979 void *), 2980 void *arg) 2981 { 2982 2983 UNIMPLEMENTED; 2984 } 2985 2986 void 2987 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 2988 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 2989 { 2990 struct lkpi_hw *lhw; 2991 struct lkpi_vif *lvif; 2992 struct lkpi_sta *lsta; 2993 struct ieee80211_sta *sta; 2994 2995 KASSERT(hw != NULL && iterfunc != NULL, 2996 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 2997 2998 lhw = HW_TO_LHW(hw); 2999 3000 LKPI_80211_LHW_LOCK(lhw); 3001 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3002 3003 LKPI_80211_LVIF_LOCK(lvif); 3004 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3005 if (!lsta->added_to_drv) 3006 continue; 3007 sta = LSTA_TO_STA(lsta); 3008 iterfunc(arg, sta); 3009 } 3010 LKPI_80211_LVIF_UNLOCK(lvif); 3011 } 3012 LKPI_80211_LHW_UNLOCK(lhw); 3013 } 3014 3015 int 3016 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3017 struct linuxkpi_ieee80211_regdomain *regd) 3018 { 3019 struct lkpi_hw *lhw; 3020 struct ieee80211com *ic; 3021 struct ieee80211_regdomain *rd; 3022 3023 lhw = wiphy_priv(wiphy); 3024 ic = lhw->ic; 3025 3026 rd = &ic->ic_regdomain; 3027 if (rd->isocc[0] == '\0') { 3028 rd->isocc[0] = regd->alpha2[0]; 3029 rd->isocc[1] = regd->alpha2[1]; 3030 } 3031 3032 TODO(); 3033 /* XXX-BZ finish the rest. */ 3034 3035 return (0); 3036 } 3037 3038 void 3039 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3040 struct cfg80211_scan_info *info) 3041 { 3042 struct lkpi_hw *lhw; 3043 struct ieee80211com *ic; 3044 struct ieee80211_scan_state *ss; 3045 3046 lhw = wiphy_priv(hw->wiphy); 3047 ic = lhw->ic; 3048 ss = ic->ic_scan; 3049 3050 ieee80211_scan_done(ss->ss_vap); 3051 3052 LKPI_80211_LHW_LOCK(lhw); 3053 free(lhw->hw_req->ies.common_ies, M_80211_VAP); 3054 free(lhw->hw_req, M_LKPI80211); 3055 lhw->hw_req = NULL; 3056 lhw->scan_flags &= ~LKPI_SCAN_RUNNING; 3057 wakeup(lhw); 3058 LKPI_80211_LHW_UNLOCK(lhw); 3059 3060 return; 3061 } 3062 3063 void 3064 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3065 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3066 { 3067 struct epoch_tracker et; 3068 struct lkpi_hw *lhw; 3069 struct ieee80211com *ic; 3070 struct mbuf *m; 3071 struct skb_shared_info *shinfo; 3072 struct ieee80211_rx_status *rx_status; 3073 struct ieee80211_rx_stats rx_stats; 3074 struct ieee80211_node *ni; 3075 struct ieee80211vap *vap; 3076 struct ieee80211_frame_min *wh; 3077 struct ieee80211_hdr *hdr; 3078 struct lkpi_sta *lsta; 3079 int i, offset, ok, type; 3080 3081 if (skb->len < 2) { 3082 /* Need 80211 stats here. */ 3083 IMPROVE(); 3084 goto err; 3085 } 3086 3087 /* 3088 * For now do the data copy; we can later improve things. Might even 3089 * have an mbuf backing the skb data then? 3090 */ 3091 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3092 if (m == NULL) 3093 goto err; 3094 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3095 3096 shinfo = skb_shinfo(skb); 3097 offset = m->m_len; 3098 for (i = 0; i < shinfo->nr_frags; i++) { 3099 m_copyback(m, offset, shinfo->frags[i].size, 3100 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3101 shinfo->frags[i].offset); 3102 offset += shinfo->frags[i].size; 3103 } 3104 3105 rx_status = IEEE80211_SKB_RXCB(skb); 3106 3107 #ifdef LINUXKPI_DEBUG_80211 3108 hdr = (void *)skb->data; 3109 if ((debug_80211 & D80211_TRACE_RX_BEACONS) == 0 && 3110 ieee80211_is_beacon(hdr->frame_control)) 3111 goto no_trace_beacons; 3112 3113 if (debug_80211 & D80211_TRACE_RX) 3114 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3115 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u\n", 3116 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3117 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3118 shinfo, shinfo->nr_frags, 3119 m, m->m_pkthdr.len, m->m_len); 3120 3121 if (debug_80211 & D80211_TRACE_RX_DUMP) 3122 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3123 3124 /* Implement a dump_rxcb() !!! */ 3125 if (debug_80211 & D80211_TRACE_RX) 3126 printf("TRACE %s: RXCB: %u %u %u, %#0x, %u, %#0x, %#0x, " 3127 "%u band %u, %u %u %u %u, %u, %#x %#x %#x %#x %u %u %u\n", 3128 __func__, 3129 rx_status->boottime_ns, 3130 rx_status->mactime, 3131 rx_status->device_timestamp, 3132 rx_status->flag, 3133 rx_status->freq, 3134 rx_status->bw, 3135 rx_status->encoding, 3136 rx_status->ampdu_reference, 3137 rx_status->band, 3138 rx_status->chains, 3139 rx_status->chain_signal[0], 3140 rx_status->chain_signal[1], 3141 rx_status->chain_signal[2], 3142 rx_status->signal, 3143 rx_status->enc_flags, 3144 rx_status->he_dcm, 3145 rx_status->he_gi, 3146 rx_status->he_ru, 3147 rx_status->zero_length_psdu_type, 3148 rx_status->nss, 3149 rx_status->rate_idx); 3150 no_trace_beacons: 3151 #endif 3152 3153 memset(&rx_stats, 0, sizeof(rx_stats)); 3154 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3155 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3156 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3157 rx_stats.c_rssi = rx_status->signal; 3158 else 3159 rx_stats.c_rssi = 0; /* XXX */ 3160 rx_stats.c_nf = -96; /* XXX */ 3161 rx_stats.r_flags |= IEEE80211_R_BAND; 3162 rx_stats.c_band = 3163 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3164 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3165 rx_stats.c_freq = rx_status->freq; 3166 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3167 3168 /* XXX-BZ correct hardcoded rssi and noise floor. */ 3169 /* XXX (*sta_statistics)() to get to some of that? */ 3170 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3171 3172 lhw = HW_TO_LHW(hw); 3173 ic = lhw->ic; 3174 3175 ok = ieee80211_add_rx_params(m, &rx_stats); 3176 if (ok == 0) { 3177 counter_u64_add(ic->ic_ierrors, 1); 3178 goto err; 3179 } 3180 3181 if (sta != NULL) { 3182 lsta = STA_TO_LSTA(sta); 3183 ni = ieee80211_ref_node(lsta->ni); 3184 } else { 3185 wh = mtod(m, struct ieee80211_frame_min *); 3186 ni = ieee80211_find_rxnode(ic, wh); 3187 if (ni != NULL) 3188 lsta = ni->ni_drv_data; 3189 } 3190 3191 if (ni != NULL) 3192 vap = ni->ni_vap; 3193 else 3194 /* 3195 * XXX-BZ can we improve this by looking at the frame hdr 3196 * or other meta-data passed up? 3197 */ 3198 vap = TAILQ_FIRST(&ic->ic_vaps); 3199 3200 if (debug_80211 & D80211_TRACE_RX) 3201 printf("TRACE %s: sta %p lsta %p ni %p vap %p\n", __func__, sta, lsta, ni, vap); 3202 3203 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3204 ieee80211_radiotap_active_vap(vap)) { 3205 struct lkpi_radiotap_rx_hdr *rtap; 3206 3207 rtap = &lhw->rtap_rx; 3208 rtap->wr_tsft = rx_status->device_timestamp; 3209 rtap->wr_flags = 0; 3210 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 3211 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3212 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3213 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 3214 #if 0 /* .. or it does not given we strip it below. */ 3215 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3216 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 3217 #endif 3218 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 3219 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 3220 rtap->wr_rate = 0; 3221 IMPROVE(); 3222 /* XXX TODO status->encoding / rate_index / bw */ 3223 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 3224 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 3225 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 3226 rtap->wr_dbm_antsignal = rx_stats.c_rssi; 3227 rtap->wr_dbm_antnoise = rx_stats.c_nf; 3228 } 3229 3230 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3231 m_adj(m, -IEEE80211_CRC_LEN); 3232 3233 NET_EPOCH_ENTER(et); 3234 if (ni != NULL) { 3235 type = ieee80211_input_mimo(ni, m); 3236 ieee80211_free_node(ni); 3237 } else { 3238 type = ieee80211_input_mimo_all(ic, m); 3239 } 3240 NET_EPOCH_EXIT(et); 3241 3242 if (debug_80211 & D80211_TRACE_RX) 3243 printf("TRACE %s: handled frame type %#0x\n", __func__, type); 3244 3245 IMPROVE(); 3246 3247 err: 3248 /* The skb is ours so we can free it :-) */ 3249 kfree_skb(skb); 3250 } 3251 3252 uint8_t 3253 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr) 3254 { 3255 const struct ieee80211_frame *wh; 3256 3257 wh = (const struct ieee80211_frame *)hdr; 3258 return (ieee80211_gettid(wh)); 3259 } 3260 3261 struct wiphy * 3262 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 3263 { 3264 struct lkpi_wiphy *lwiphy; 3265 3266 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 3267 if (lwiphy == NULL) 3268 return (NULL); 3269 lwiphy->ops = ops; 3270 3271 /* XXX TODO */ 3272 return (LWIPHY_TO_WIPHY(lwiphy)); 3273 } 3274 3275 void 3276 linuxkpi_wiphy_free(struct wiphy *wiphy) 3277 { 3278 struct lkpi_wiphy *lwiphy; 3279 3280 if (wiphy == NULL) 3281 return; 3282 3283 lwiphy = WIPHY_TO_LWIPHY(wiphy); 3284 kfree(lwiphy); 3285 } 3286 3287 uint32_t 3288 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 3289 enum nl80211_band band) 3290 { 3291 3292 switch (band) { 3293 case NL80211_BAND_2GHZ: 3294 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 3295 break; 3296 case NL80211_BAND_5GHZ: 3297 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 3298 break; 3299 default: 3300 /* XXX abort, retry, error, panic? */ 3301 break; 3302 } 3303 3304 return (0); 3305 } 3306 3307 uint32_t 3308 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 3309 { 3310 3311 return (ieee80211_mhz2ieee(freq, 0)); 3312 } 3313 3314 static struct lkpi_sta * 3315 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 3316 { 3317 struct lkpi_sta *lsta, *temp; 3318 3319 LKPI_80211_LVIF_LOCK(lvif); 3320 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 3321 if (lsta->ni == ni) { 3322 LKPI_80211_LVIF_UNLOCK(lvif); 3323 return (lsta); 3324 } 3325 } 3326 LKPI_80211_LVIF_UNLOCK(lvif); 3327 3328 return (NULL); 3329 } 3330 3331 struct ieee80211_sta * 3332 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 3333 { 3334 struct lkpi_vif *lvif; 3335 struct lkpi_sta *lsta, *temp; 3336 struct ieee80211_sta *sta; 3337 3338 lvif = VIF_TO_LVIF(vif); 3339 3340 LKPI_80211_LVIF_LOCK(lvif); 3341 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 3342 sta = LSTA_TO_STA(lsta); 3343 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 3344 LKPI_80211_LVIF_UNLOCK(lvif); 3345 return (sta); 3346 } 3347 } 3348 LKPI_80211_LVIF_UNLOCK(lvif); 3349 return (NULL); 3350 } 3351 3352 struct ieee80211_sta * 3353 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, uint8_t *addr, 3354 uint8_t *ourvifaddr) 3355 { 3356 struct lkpi_hw *lhw; 3357 struct lkpi_vif *lvif; 3358 struct lkpi_sta *lsta; 3359 struct ieee80211_vif *vif; 3360 struct ieee80211_sta *sta; 3361 3362 lhw = wiphy_priv(hw->wiphy); 3363 sta = NULL; 3364 3365 LKPI_80211_LHW_LOCK(lhw); 3366 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3367 3368 /* XXX-BZ check our address from the vif. */ 3369 3370 vif = LVIF_TO_VIF(lvif); 3371 if (ourvifaddr != NULL && 3372 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 3373 continue; 3374 sta = linuxkpi_ieee80211_find_sta(vif, addr); 3375 if (sta != NULL) 3376 break; 3377 } 3378 LKPI_80211_LHW_UNLOCK(lhw); 3379 3380 if (sta != NULL) { 3381 lsta = STA_TO_LSTA(sta); 3382 if (!lsta->added_to_drv) 3383 return (NULL); 3384 } 3385 3386 return (sta); 3387 } 3388 3389 struct sk_buff * 3390 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 3391 struct ieee80211_txq *txq) 3392 { 3393 struct lkpi_txq *ltxq; 3394 struct sk_buff *skb; 3395 3396 ltxq = TXQ_TO_LTXQ(txq); 3397 ltxq->seen_dequeue = true; 3398 3399 skb = skb_dequeue(<xq->skbq); 3400 3401 return (skb); 3402 } 3403 3404 void 3405 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 3406 uint64_t *frame_cnt, uint64_t *byte_cnt) 3407 { 3408 struct lkpi_txq *ltxq; 3409 struct sk_buff *skb; 3410 uint64_t fc, bc; 3411 3412 ltxq = TXQ_TO_LTXQ(txq); 3413 3414 fc = bc = 0; 3415 skb_queue_walk(<xq->skbq, skb) { 3416 fc++; 3417 bc += skb->len; 3418 } 3419 if (frame_cnt) 3420 *frame_cnt = fc; 3421 if (byte_cnt) 3422 *byte_cnt = bc; 3423 3424 /* Validate that this is doing the correct thing. */ 3425 /* Should we keep track on en/dequeue? */ 3426 IMPROVE(); 3427 } 3428 3429 /* 3430 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 3431 * The latter tries to derive the success status from the info flags 3432 * passed back from the driver. rawx_mit() saves the ni on the m and the 3433 * m on the skb for us to be able to give feedback to net80211. 3434 */ 3435 void 3436 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 3437 int status) 3438 { 3439 struct ieee80211_node *ni; 3440 struct mbuf *m; 3441 3442 m = skb->m; 3443 skb->m = NULL; 3444 3445 if (m != NULL) { 3446 ni = m->m_pkthdr.PH_loc.ptr; 3447 /* Status: 0 is ok, != 0 is error. */ 3448 ieee80211_tx_complete(ni, m, status); 3449 /* ni & mbuf were consumed. */ 3450 } 3451 3452 kfree_skb(skb); 3453 } 3454 3455 /* 3456 * This is an internal bandaid for the moment for the way we glue 3457 * skbs and mbufs together for TX. Once we have skbs backed by 3458 * mbufs this should go away. 3459 * This is a public function but kept on the private KPI (lkpi_) 3460 * and is not exposed by a header file. 3461 */ 3462 static void 3463 lkpi_ieee80211_free_skb_mbuf(void *p) 3464 { 3465 struct ieee80211_node *ni; 3466 struct mbuf *m; 3467 3468 if (p == NULL) 3469 return; 3470 3471 m = (struct mbuf *)p; 3472 M_ASSERTPKTHDR(m); 3473 3474 ni = m->m_pkthdr.PH_loc.ptr; 3475 m->m_pkthdr.PH_loc.ptr = NULL; 3476 if (ni != NULL) 3477 ieee80211_free_node(ni); 3478 m_freem(m); 3479 } 3480 3481 void 3482 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 3483 struct delayed_work *w, int delay) 3484 { 3485 struct lkpi_hw *lhw; 3486 3487 /* Need to make sure hw is in a stable (non-suspended) state. */ 3488 IMPROVE(); 3489 3490 lhw = HW_TO_LHW(hw); 3491 queue_delayed_work(lhw->workq, w, delay); 3492 } 3493 3494 void 3495 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 3496 struct work_struct *w) 3497 { 3498 struct lkpi_hw *lhw; 3499 3500 /* Need to make sure hw is in a stable (non-suspended) state. */ 3501 IMPROVE(); 3502 3503 lhw = HW_TO_LHW(hw); 3504 queue_work(lhw->workq, w); 3505 } 3506 3507 struct sk_buff * 3508 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 3509 struct ieee80211_vif *vif) 3510 { 3511 struct lkpi_vif *lvif; 3512 struct ieee80211vap *vap; 3513 struct sk_buff *skb; 3514 struct ieee80211_frame_pspoll *psp; 3515 uint16_t v; 3516 3517 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 3518 if (skb == NULL) 3519 return (NULL); 3520 3521 skb_reserve(skb, hw->extra_tx_headroom); 3522 3523 lvif = VIF_TO_LVIF(vif); 3524 vap = LVIF_TO_VAP(lvif); 3525 3526 psp = skb_put_zero(skb, sizeof(*psp)); 3527 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 3528 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 3529 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 3530 memcpy(&psp->i_aid, &v, sizeof(v)); 3531 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 3532 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 3533 3534 return (skb); 3535 } 3536 3537 struct sk_buff * 3538 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 3539 struct ieee80211_vif *vif, bool qos) 3540 { 3541 struct lkpi_vif *lvif; 3542 struct ieee80211vap *vap; 3543 struct sk_buff *skb; 3544 struct ieee80211_frame *nullf; 3545 3546 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 3547 if (skb == NULL) 3548 return (NULL); 3549 3550 skb_reserve(skb, hw->extra_tx_headroom); 3551 3552 lvif = VIF_TO_LVIF(vif); 3553 vap = LVIF_TO_VAP(lvif); 3554 3555 nullf = skb_put_zero(skb, sizeof(*nullf)); 3556 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 3557 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 3558 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 3559 3560 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 3561 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 3562 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 3563 3564 return (skb); 3565 } 3566 3567 struct wireless_dev * 3568 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 3569 { 3570 struct lkpi_vif *lvif; 3571 3572 lvif = VIF_TO_LVIF(vif); 3573 return (&lvif->wdev); 3574 } 3575 3576 void 3577 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 3578 { 3579 struct lkpi_vif *lvif; 3580 struct ieee80211vap *vap; 3581 enum ieee80211_state nstate; 3582 int arg; 3583 3584 lvif = VIF_TO_LVIF(vif); 3585 vap = LVIF_TO_VAP(lvif); 3586 3587 /* 3588 * Go to scan; otherwise we need to elaborately check state and 3589 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 3590 * Let the statemachine handle all neccessary changes. 3591 */ 3592 nstate = IEEE80211_S_SCAN; 3593 arg = 0; 3594 3595 if (debug_80211 & D80211_TRACE) 3596 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 3597 ieee80211_new_state(vap, nstate, arg); 3598 } 3599 3600 MODULE_VERSION(linuxkpi_wlan, 1); 3601 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 3602 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 3603