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 IEEE80211_UNLOCK(lhw->ic); 577 LKPI_80211_LHW_LOCK(lhw); 578 /* Need to cancel the scan. */ 579 lkpi_80211_mo_cancel_hw_scan(hw, vif); 580 581 /* Need to make sure we see ieee80211_scan_completed. */ 582 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 583 LKPI_80211_LHW_UNLOCK(lhw); 584 IEEE80211_LOCK(lhw->ic); 585 586 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) 587 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 588 __func__, error, lhw, vif); 589 } 590 591 static void 592 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 593 { 594 struct lkpi_hw *lhw; 595 int error; 596 bool old; 597 598 old = hw->conf.flags & IEEE80211_CONF_IDLE; 599 if (old == new) 600 return; 601 602 hw->conf.flags ^= IEEE80211_CONF_IDLE; 603 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 604 if (error != 0 && error != EOPNOTSUPP) { 605 lhw = HW_TO_LHW(hw); 606 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 607 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 608 } 609 } 610 611 static void 612 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 613 struct lkpi_hw *lhw) 614 { 615 sta->aid = 0; 616 if (vif->bss_conf.assoc) { 617 struct ieee80211_hw *hw; 618 enum ieee80211_bss_changed changed; 619 620 lhw->update_mc = true; 621 lkpi_update_mcast_filter(lhw->ic, true); 622 623 changed = 0; 624 vif->bss_conf.assoc = false; 625 vif->bss_conf.aid = 0; 626 changed |= BSS_CHANGED_ASSOC; 627 IMPROVE(); 628 hw = LHW_TO_HW(lhw); 629 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 630 changed); 631 632 lkpi_hw_conf_idle(hw, true); 633 } 634 } 635 636 static void 637 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 638 bool dequeue_seen, bool no_emptyq) 639 { 640 struct lkpi_txq *ltxq; 641 int tid; 642 643 /* Wake up all queues to know they are allocated in the driver. */ 644 for (tid = 0; tid < nitems(sta->txq); tid++) { 645 646 if (tid == IEEE80211_NUM_TIDS) { 647 IMPROVE("station specific?"); 648 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 649 continue; 650 } else if (tid >= hw->queues) 651 continue; 652 653 if (sta->txq[tid] == NULL) 654 continue; 655 656 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 657 if (dequeue_seen && !ltxq->seen_dequeue) 658 continue; 659 660 if (no_emptyq && skb_queue_empty(<xq->skbq)) 661 continue; 662 663 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 664 } 665 } 666 667 /* -------------------------------------------------------------------------- */ 668 669 static int 670 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 671 { 672 673 return (0); 674 } 675 676 /* lkpi_iv_newstate() handles the stop scan case generally. */ 677 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 678 679 static int 680 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 681 { 682 struct linuxkpi_ieee80211_channel *chan; 683 struct ieee80211_chanctx_conf *conf; 684 struct lkpi_hw *lhw; 685 struct ieee80211_hw *hw; 686 struct lkpi_vif *lvif; 687 struct ieee80211_vif *vif; 688 struct ieee80211_node *ni; 689 struct lkpi_sta *lsta; 690 struct ieee80211_sta *sta; 691 enum ieee80211_bss_changed bss_changed; 692 struct ieee80211_prep_tx_info prep_tx_info; 693 uint32_t changed; 694 int error; 695 696 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 697 if (chan == NULL) { 698 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 699 return (ESRCH); 700 } 701 702 lhw = vap->iv_ic->ic_softc; 703 hw = LHW_TO_HW(lhw); 704 lvif = VAP_TO_LVIF(vap); 705 vif = LVIF_TO_VIF(lvif); 706 707 IEEE80211_UNLOCK(vap->iv_ic); 708 709 /* Add chanctx (or if exists, change it). */ 710 if (vif->chanctx_conf != NULL) { 711 conf = vif->chanctx_conf; 712 IMPROVE("diff changes for changed, working on live copy, rcu"); 713 } else { 714 /* Keep separate alloc as in Linux this is rcu managed? */ 715 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 716 M_LKPI80211, M_WAITOK | M_ZERO); 717 } 718 719 conf->rx_chains_dynamic = 1; 720 conf->rx_chains_static = 1; 721 conf->radar_enabled = 722 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 723 conf->def.chan = chan; 724 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 725 conf->def.center_freq1 = chan->center_freq; 726 conf->def.center_freq2 = 0; 727 /* Responder ... */ 728 conf->min_def.chan = chan; 729 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 730 conf->min_def.center_freq1 = chan->center_freq; 731 conf->min_def.center_freq2 = 0; 732 IMPROVE("currently 20_NOHT only"); 733 734 ni = NULL; 735 error = 0; 736 if (vif->chanctx_conf != NULL) { 737 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 738 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 739 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 740 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 741 lkpi_80211_mo_change_chanctx(hw, conf, changed); 742 } else { 743 error = lkpi_80211_mo_add_chanctx(hw, conf); 744 if (error == 0 || error == EOPNOTSUPP) { 745 vif->bss_conf.chandef.chan = conf->def.chan; 746 vif->bss_conf.chandef.width = conf->def.width; 747 vif->bss_conf.chandef.center_freq1 = 748 conf->def.center_freq1; 749 vif->bss_conf.chandef.center_freq2 = 750 conf->def.center_freq2; 751 } else { 752 goto out; 753 } 754 /* Assign vif chanctx. */ 755 if (error == 0) 756 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 757 if (error == EOPNOTSUPP) 758 error = 0; 759 if (error != 0) { 760 lkpi_80211_mo_remove_chanctx(hw, conf); 761 free(conf, M_LKPI80211); 762 goto out; 763 } 764 } 765 IMPROVE("update radiotap chan fields too"); 766 767 ni = ieee80211_ref_node(vap->iv_bss); 768 769 /* Set bss info (bss_info_changed). */ 770 bss_changed = 0; 771 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, ni->ni_bssid); 772 bss_changed |= BSS_CHANGED_BSSID; 773 vif->bss_conf.txpower = ni->ni_txpower; 774 bss_changed |= BSS_CHANGED_TXPOWER; 775 vif->bss_conf.idle = false; 776 bss_changed |= BSS_CHANGED_IDLE; 777 vif->bss_conf.beacon_int = ni->ni_intval; 778 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 779 if (vif->bss_conf.beacon_int < 16) 780 vif->bss_conf.beacon_int = 16; 781 bss_changed |= BSS_CHANGED_BEACON_INT; 782 /* Should almost assert it is this. */ 783 vif->bss_conf.assoc = false; 784 vif->bss_conf.aid = 0; 785 /* RATES */ 786 IMPROVE("bss info: not all needs to come now and rates are missing"); 787 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 788 789 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 790 lsta = ni->ni_drv_data; 791 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 792 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 793 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 794 sta = LSTA_TO_STA(lsta); 795 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 796 if (error != 0) { 797 IMPROVE("do we need to undo the chan ctx?"); 798 goto out; 799 } 800 #if 0 801 lsta->added_to_drv = true; /* mo manages. */ 802 #endif 803 804 /* 805 * Wakeup all queues now that sta is there so we have as much time to 806 * possibly prepare the queue in the driver to be ready for the 1st 807 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 808 * is no guarantee or way to check. 809 */ 810 lkpi_wake_tx_queues(hw, sta, false, false); 811 812 { 813 int i, count; 814 815 for (i = 3 * (hw->queues + 1); i > 0; i--) { 816 struct lkpi_txq *ltxq; 817 int tid; 818 819 count = 0; 820 /* Wake up all queues to know they are allocated in the driver. */ 821 for (tid = 0; tid < nitems(sta->txq); tid++) { 822 823 if (tid == IEEE80211_NUM_TIDS) { 824 IMPROVE("station specific?"); 825 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 826 continue; 827 } else if (tid >= hw->queues) 828 continue; 829 830 if (sta->txq[tid] == NULL) 831 continue; 832 833 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 834 if (!ltxq->seen_dequeue) 835 count++; 836 } 837 if (count == 0) 838 break; 839 #ifdef LINUXKPI_DEBUG_80211 840 if (count > 0) 841 ic_printf(vap->iv_ic, "%s: waiting for %d queues " 842 "to be allocated by driver\n", __func__, count); 843 #endif 844 pause("lkpi80211txq", hz/10); 845 } 846 #ifdef LINUXKPI_DEBUG_80211 847 if (count > 0) 848 ic_printf(vap->iv_ic, "%s: %d queues still not " 849 "allocated by driver\n", __func__, count); 850 #endif 851 } 852 853 /* Start mgd_prepare_tx. */ 854 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 855 prep_tx_info.duration = PREP_TX_INFO_DURATION; 856 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 857 lsta->in_mgd = true; 858 859 /* 860 * What is going to happen next: 861 * - <twiddle> .. we should end up in "auth_to_assoc" 862 * - event_callback 863 * - update sta_state (NONE to AUTH) 864 * - mgd_complete_tx 865 * (ideally we'd do that on a callback for something else ...) 866 */ 867 868 out: 869 IEEE80211_LOCK(vap->iv_ic); 870 if (ni != NULL) 871 ieee80211_free_node(ni); 872 return (error); 873 } 874 875 static int 876 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 877 { 878 struct lkpi_hw *lhw; 879 struct ieee80211_hw *hw; 880 struct lkpi_vif *lvif; 881 struct ieee80211_vif *vif; 882 struct ieee80211_node *ni; 883 struct lkpi_sta *lsta; 884 struct ieee80211_sta *sta; 885 struct ieee80211_prep_tx_info prep_tx_info; 886 int error; 887 888 lhw = vap->iv_ic->ic_softc; 889 hw = LHW_TO_HW(lhw); 890 lvif = VAP_TO_LVIF(vap); 891 vif = LVIF_TO_VIF(lvif); 892 893 /* Keep ni around. */ 894 ni = ieee80211_ref_node(vap->iv_bss); 895 896 IEEE80211_UNLOCK(vap->iv_ic); 897 lsta = ni->ni_drv_data; 898 sta = LSTA_TO_STA(lsta); 899 900 /* flush, drop. */ 901 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 902 903 IEEE80211_LOCK(vap->iv_ic); 904 905 /* Call iv_newstate first so we get potential deauth packet out. */ 906 error = lvif->iv_newstate(vap, nstate, arg); 907 if (error != 0) 908 goto outni; 909 910 IEEE80211_UNLOCK(vap->iv_ic); 911 912 /* Wake tx queues to get packet(s) out. */ 913 lkpi_wake_tx_queues(hw, sta, true, true); 914 915 /* flush, no drop */ 916 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 917 918 /* Take the station and chan ctx down again. */ 919 920 IMPROVE("event callback with failure?"); 921 922 /* End mgd_complete_tx. */ 923 if (lsta->in_mgd) { 924 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 925 prep_tx_info.success = false; 926 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 927 lsta->in_mgd = false; 928 } 929 930 #ifdef __not_yet__ 931 /* sync_rx_queues */ 932 lkpi_80211_mo_sync_rx_queues(hw); 933 934 /* sta_pre_rcu_remove */ 935 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 936 #endif 937 938 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 939 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 940 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 941 "NONE: %#x\n", __func__, lsta, lsta->state)); 942 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 943 if (error != 0) { 944 IMPROVE("do we need to undo the chan ctx?"); 945 goto out; 946 } 947 #if 0 948 lsta->added_to_drv = false; /* mo manages. */ 949 #endif 950 951 IMPROVE("Any bss_info changes to announce?"); 952 953 if (vif->chanctx_conf != NULL) { 954 struct ieee80211_chanctx_conf *conf; 955 956 conf = vif->chanctx_conf; 957 /* Remove vif context. */ 958 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 959 /* NB: vif->chanctx_conf is NULL now. */ 960 961 /* Remove chan ctx. */ 962 lkpi_80211_mo_remove_chanctx(hw, conf); 963 free(conf, M_LKPI80211); 964 } 965 966 /* No need to start a scan; ic_scan_start should do. */ 967 968 error = EALREADY; 969 out: 970 IEEE80211_LOCK(vap->iv_ic); 971 outni: 972 if (ni != NULL) 973 ieee80211_free_node(ni); 974 return (error); 975 } 976 977 static int 978 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 979 { 980 int error; 981 982 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 983 if (error == 0) 984 error = lkpi_sta_scan_to_init(vap, nstate, arg); 985 return (error); 986 } 987 988 static int 989 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 990 { 991 struct lkpi_hw *lhw; 992 struct ieee80211_hw *hw; 993 struct lkpi_vif *lvif; 994 struct ieee80211_vif *vif; 995 struct ieee80211_node *ni; 996 struct lkpi_sta *lsta; 997 struct ieee80211_sta *sta; 998 struct ieee80211_prep_tx_info prep_tx_info; 999 int error; 1000 1001 lhw = vap->iv_ic->ic_softc; 1002 hw = LHW_TO_HW(lhw); 1003 lvif = VAP_TO_LVIF(vap); 1004 vif = LVIF_TO_VIF(lvif); 1005 1006 IEEE80211_UNLOCK(vap->iv_ic); 1007 ni = NULL; 1008 1009 /* Finish auth. */ 1010 IMPROVE("event callback"); 1011 1012 /* Update sta_state (NONE to AUTH). */ 1013 ni = ieee80211_ref_node(vap->iv_bss); 1014 lsta = ni->ni_drv_data; 1015 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1016 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1017 "NONE: %#x\n", __func__, lsta, lsta->state)); 1018 sta = LSTA_TO_STA(lsta); 1019 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1020 if (error != 0) 1021 goto out; 1022 1023 /* End mgd_complete_tx. */ 1024 if (lsta->in_mgd) { 1025 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1026 prep_tx_info.success = true; 1027 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1028 lsta->in_mgd = false; 1029 } 1030 1031 /* Now start assoc. */ 1032 1033 /* Start mgd_prepare_tx. */ 1034 if (!lsta->in_mgd) { 1035 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1036 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1037 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1038 lsta->in_mgd = true; 1039 } 1040 1041 /* Wake tx queue to get packet out. */ 1042 lkpi_wake_tx_queues(hw, sta, true, true); 1043 1044 /* 1045 * <twiddle> .. we end up in "assoc_to_run" 1046 * - update sta_state (AUTH to ASSOC) 1047 * - conf_tx [all] 1048 * - bss_info_changed (assoc, aid, ssid, ..) 1049 * - change_chanctx (if needed) 1050 * - event_callback 1051 * - mgd_complete_tx 1052 */ 1053 1054 out: 1055 IEEE80211_LOCK(vap->iv_ic); 1056 if (ni != NULL) 1057 ieee80211_free_node(ni); 1058 return (error); 1059 } 1060 1061 /* auth_to_auth, assoc_to_assoc. */ 1062 static int 1063 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1064 { 1065 struct lkpi_hw *lhw; 1066 struct ieee80211_hw *hw; 1067 struct lkpi_vif *lvif; 1068 struct ieee80211_vif *vif; 1069 struct ieee80211_node *ni; 1070 struct lkpi_sta *lsta; 1071 struct ieee80211_prep_tx_info prep_tx_info; 1072 1073 lhw = vap->iv_ic->ic_softc; 1074 hw = LHW_TO_HW(lhw); 1075 lvif = VAP_TO_LVIF(vap); 1076 vif = LVIF_TO_VIF(lvif); 1077 1078 ni = ieee80211_ref_node(vap->iv_bss); 1079 1080 IEEE80211_UNLOCK(vap->iv_ic); 1081 lsta = ni->ni_drv_data; 1082 1083 IMPROVE("event callback?"); 1084 1085 /* End mgd_complete_tx. */ 1086 if (lsta->in_mgd) { 1087 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1088 prep_tx_info.success = false; 1089 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1090 lsta->in_mgd = false; 1091 } 1092 1093 /* Now start assoc. */ 1094 1095 /* Start mgd_prepare_tx. */ 1096 if (!lsta->in_mgd) { 1097 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1098 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1099 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1100 lsta->in_mgd = true; 1101 } 1102 1103 IEEE80211_LOCK(vap->iv_ic); 1104 if (ni != NULL) 1105 ieee80211_free_node(ni); 1106 1107 return (0); 1108 } 1109 1110 static int 1111 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1112 { 1113 struct lkpi_hw *lhw; 1114 struct ieee80211_hw *hw; 1115 struct lkpi_vif *lvif; 1116 struct ieee80211_vif *vif; 1117 struct ieee80211_node *ni; 1118 struct lkpi_sta *lsta; 1119 struct ieee80211_sta *sta; 1120 struct ieee80211_prep_tx_info prep_tx_info; 1121 int error; 1122 1123 lhw = vap->iv_ic->ic_softc; 1124 hw = LHW_TO_HW(lhw); 1125 lvif = VAP_TO_LVIF(vap); 1126 vif = LVIF_TO_VIF(lvif); 1127 1128 /* Keep ni around. */ 1129 ni = ieee80211_ref_node(vap->iv_bss); 1130 1131 IEEE80211_UNLOCK(vap->iv_ic); 1132 lsta = ni->ni_drv_data; 1133 sta = LSTA_TO_STA(lsta); 1134 1135 /* End mgd_complete_tx. */ 1136 if (lsta->in_mgd) { 1137 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1138 prep_tx_info.success = false; 1139 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1140 lsta->in_mgd = false; 1141 } 1142 1143 /* Update sta and change state (from AUTH) to NONE. */ 1144 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1145 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1146 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1147 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1148 if (error != 0) 1149 goto out; 1150 1151 IMPROVE("anything else?"); 1152 1153 out: 1154 IEEE80211_LOCK(vap->iv_ic); 1155 if (ni != NULL) 1156 ieee80211_free_node(ni); 1157 return (error); 1158 } 1159 1160 static int 1161 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1162 { 1163 int error; 1164 1165 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 1166 if (error == 0) 1167 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1168 return (error); 1169 } 1170 1171 static int 1172 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1173 { 1174 int error; 1175 1176 error = lkpi_sta_assoc_to_scan(vap, nstate, arg); 1177 if (error == 0) 1178 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1179 return (error); 1180 } 1181 1182 static int 1183 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1184 { 1185 struct lkpi_hw *lhw; 1186 struct ieee80211_hw *hw; 1187 struct lkpi_vif *lvif; 1188 struct ieee80211_vif *vif; 1189 struct ieee80211_node *ni; 1190 struct lkpi_sta *lsta; 1191 struct ieee80211_sta *sta; 1192 struct ieee80211_prep_tx_info prep_tx_info; 1193 enum ieee80211_bss_changed bss_changed; 1194 int error; 1195 1196 lhw = vap->iv_ic->ic_softc; 1197 hw = LHW_TO_HW(lhw); 1198 lvif = VAP_TO_LVIF(vap); 1199 vif = LVIF_TO_VIF(lvif); 1200 1201 IEEE80211_UNLOCK(vap->iv_ic); 1202 ni = NULL; 1203 1204 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1205 "and to lesser extend ieee80211_notify_node_join"); 1206 1207 /* Finish assoc. */ 1208 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1209 ni = ieee80211_ref_node(vap->iv_bss); 1210 lsta = ni->ni_drv_data; 1211 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1212 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1213 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1214 sta = LSTA_TO_STA(lsta); 1215 sta->aid = IEEE80211_NODE_AID(ni); 1216 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1217 if (error != 0) 1218 goto out; 1219 1220 IMPROVE("wme / conf_tx [all]"); 1221 1222 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1223 bss_changed = 0; 1224 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1225 vif->bss_conf.assoc = true; 1226 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1227 bss_changed |= BSS_CHANGED_ASSOC; 1228 } 1229 /* We set SSID but this is not BSSID! */ 1230 vif->bss_conf.ssid_len = ni->ni_esslen; 1231 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1232 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1233 vif->bss_conf.use_short_preamble) { 1234 vif->bss_conf.use_short_preamble ^= 1; 1235 /* bss_changed |= BSS_CHANGED_??? */ 1236 } 1237 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1238 vif->bss_conf.use_short_slot) { 1239 vif->bss_conf.use_short_slot ^= 1; 1240 /* bss_changed |= BSS_CHANGED_??? */ 1241 } 1242 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1243 vif->bss_conf.qos) { 1244 vif->bss_conf.qos ^= 1; 1245 bss_changed |= BSS_CHANGED_QOS; 1246 } 1247 if (vif->bss_conf.beacon_int != ni->ni_intval) { 1248 vif->bss_conf.beacon_int = ni->ni_intval; 1249 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 1250 if (vif->bss_conf.beacon_int < 16) 1251 vif->bss_conf.beacon_int = 16; 1252 bss_changed |= BSS_CHANGED_BEACON_INT; 1253 } 1254 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 1255 vap->iv_dtim_period > 0) { 1256 vif->bss_conf.dtim_period = vap->iv_dtim_period; 1257 bss_changed |= BSS_CHANGED_BEACON_INFO; 1258 } 1259 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1260 1261 /* - change_chanctx (if needed) 1262 * - event_callback 1263 */ 1264 1265 /* End mgd_complete_tx. */ 1266 if (lsta->in_mgd) { 1267 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1268 prep_tx_info.success = true; 1269 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1270 lsta->in_mgd = false; 1271 } 1272 1273 lkpi_hw_conf_idle(hw, false); 1274 1275 /* 1276 * And then: 1277 * - (more packets)? 1278 * - set_key 1279 * - set_default_unicast_key 1280 * - set_key (?) 1281 * - ipv6_addr_change (?) 1282 */ 1283 /* Prepare_multicast && configure_filter. */ 1284 lhw->update_mc = true; 1285 lkpi_update_mcast_filter(vap->iv_ic, true); 1286 1287 if (!ieee80211_node_is_authorized(ni)) { 1288 IMPROVE("net80211 does not consider node authorized"); 1289 } 1290 1291 /* Update sta_state (ASSOC to AUTHORIZED). */ 1292 ni = ieee80211_ref_node(vap->iv_bss); 1293 lsta = ni->ni_drv_data; 1294 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1295 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1296 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1297 sta = LSTA_TO_STA(lsta); 1298 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1299 if (error != 0) { 1300 IMPROVE("undo some changes?"); 1301 goto out; 1302 } 1303 1304 /* - drv_config (?) 1305 * - bss_info_changed 1306 * - set_rekey_data (?) 1307 * 1308 * And now we should be passing packets. 1309 */ 1310 IMPROVE("Need that bssid setting, and the keys"); 1311 1312 out: 1313 IEEE80211_LOCK(vap->iv_ic); 1314 if (ni != NULL) 1315 ieee80211_free_node(ni); 1316 return (error); 1317 } 1318 1319 static int 1320 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1321 { 1322 int error; 1323 1324 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1325 if (error == 0) 1326 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1327 return (error); 1328 } 1329 1330 static int 1331 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1332 { 1333 struct lkpi_hw *lhw; 1334 struct ieee80211_hw *hw; 1335 struct lkpi_vif *lvif; 1336 struct ieee80211_vif *vif; 1337 struct ieee80211_node *ni; 1338 struct lkpi_sta *lsta; 1339 struct ieee80211_sta *sta; 1340 int error; 1341 1342 lhw = vap->iv_ic->ic_softc; 1343 hw = LHW_TO_HW(lhw); 1344 lvif = VAP_TO_LVIF(vap); 1345 vif = LVIF_TO_VIF(lvif); 1346 1347 /* Keep ni around. */ 1348 ni = ieee80211_ref_node(vap->iv_bss); 1349 1350 IEEE80211_UNLOCK(vap->iv_ic); 1351 lsta = ni->ni_drv_data; 1352 sta = LSTA_TO_STA(lsta); 1353 1354 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1355 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1356 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1357 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1358 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1359 if (error != 0) 1360 goto out; 1361 1362 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1363 lkpi_disassoc(sta, vif, lhw); 1364 1365 /* Update sta_state (ASSOC to AUTH). */ 1366 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1367 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1368 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1369 sta = LSTA_TO_STA(lsta); 1370 sta->aid = 0; 1371 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1372 if (error != 0) 1373 goto out; 1374 1375 IMPROVE("if ASSOC is final state, prep_tx_info?"); 1376 1377 out: 1378 IEEE80211_LOCK(vap->iv_ic); 1379 if (ni != NULL) 1380 ieee80211_free_node(ni); 1381 return (error); 1382 } 1383 1384 static int 1385 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1386 { 1387 int error; 1388 1389 error = lkpi_sta_run_to_assoc(vap, nstate, arg); 1390 if (error == 0) 1391 error = lkpi_sta_assoc_to_auth(vap, nstate, arg); 1392 return (error); 1393 } 1394 1395 static int 1396 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1397 { 1398 int error; 1399 1400 error = lkpi_sta_run_to_auth(vap, nstate, arg); 1401 if (error == 0) 1402 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1403 return (error); 1404 } 1405 1406 static int 1407 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1408 { 1409 int error; 1410 1411 error = lkpi_sta_run_to_scan(vap, nstate, arg); 1412 if (error == 0) 1413 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1414 return (error); 1415 } 1416 1417 /* 1418 * The matches the documented state changes in net80211::sta_newstate(). 1419 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1420 * there are "invalid" (so there is a room for failure here). 1421 */ 1422 struct fsm_state { 1423 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1424 enum ieee80211_state ostate; 1425 enum ieee80211_state nstate; 1426 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1427 } sta_state_fsm[] = { 1428 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1429 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1430 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1431 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, 1432 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, 1433 1434 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1435 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1436 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1437 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1438 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, 1439 1440 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, 1441 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, 1442 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, 1443 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, 1444 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, 1445 1446 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, 1447 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, 1448 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, 1449 1450 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1451 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1452 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1453 1454 /* Dummy at the end without handler. */ 1455 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1456 }; 1457 1458 static int 1459 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1460 { 1461 struct ieee80211com *ic; 1462 struct lkpi_hw *lhw; 1463 struct lkpi_vif *lvif; 1464 struct ieee80211_vif *vif; 1465 struct fsm_state *s; 1466 enum ieee80211_state ostate; 1467 int error; 1468 1469 ic = vap->iv_ic; 1470 IEEE80211_LOCK_ASSERT(ic); 1471 ostate = vap->iv_state; 1472 1473 if (debug_80211 & D80211_TRACE) 1474 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1475 __func__, __LINE__, vap, nstate, arg); 1476 1477 if (vap->iv_opmode == IEEE80211_M_STA) { 1478 1479 lhw = ic->ic_softc; 1480 lvif = VAP_TO_LVIF(vap); 1481 vif = LVIF_TO_VIF(lvif); 1482 1483 /* No need to replicate this in most state handlers. */ 1484 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 1485 lkpi_stop_hw_scan(lhw, vif); 1486 1487 s = sta_state_fsm; 1488 1489 } else { 1490 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 1491 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 1492 return (ENOSYS); 1493 } 1494 1495 error = 0; 1496 for (; s->handler != NULL; s++) { 1497 if (ostate == s->ostate && nstate == s->nstate) { 1498 error = s->handler(vap, nstate, arg); 1499 break; 1500 } 1501 } 1502 IEEE80211_LOCK_ASSERT(vap->iv_ic); 1503 1504 if (s->handler == NULL) { 1505 IMPROVE("thurn this into a KASSERT\n"); 1506 ic_printf(vap->iv_ic, "%s: unsupported state transition " 1507 "%d (%s) -> %d (%s)\n", __func__, 1508 ostate, ieee80211_state_name[ostate], 1509 nstate, ieee80211_state_name[nstate]); 1510 return (ENOSYS); 1511 } 1512 1513 if (error == EALREADY) { 1514 IMPROVE("make this a debug log later"); 1515 ic_printf(vap->iv_ic, "%s: error %d during state transition " 1516 "%d (%s) -> %d (%s): iv_newstate already handled.\n", 1517 __func__, error, 1518 ostate, ieee80211_state_name[ostate], 1519 nstate, ieee80211_state_name[nstate]); 1520 return (0); 1521 } 1522 1523 if (error != 0) { 1524 /* XXX-BZ currently expected so ignore. */ 1525 ic_printf(vap->iv_ic, "%s: error %d during state transition " 1526 "%d (%s) -> %d (%s)\n", __func__, error, 1527 ostate, ieee80211_state_name[ostate], 1528 nstate, ieee80211_state_name[nstate]); 1529 /* return (error); */ 1530 } 1531 1532 if (debug_80211 & D80211_TRACE) 1533 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x calling net80211 parent\n", 1534 __func__, __LINE__, vap, nstate, arg); 1535 1536 return (lvif->iv_newstate(vap, nstate, arg)); 1537 } 1538 1539 /* -------------------------------------------------------------------------- */ 1540 1541 static int 1542 lkpi_ic_wme_update(struct ieee80211com *ic) 1543 { 1544 /* This needs queuing and go at the right moment. */ 1545 #ifdef WITH_WME_UPDATE 1546 struct ieee80211vap *vap; 1547 struct lkpi_hw *lhw; 1548 struct ieee80211_hw *hw; 1549 struct lkpi_vif *lvif; 1550 struct ieee80211_vif *vif; 1551 struct chanAccParams chp; 1552 struct wmeParams wmeparr[WME_NUM_AC]; 1553 struct ieee80211_tx_queue_params txqp; 1554 enum ieee80211_bss_changed changed; 1555 int error; 1556 uint16_t ac; 1557 #endif 1558 1559 IMPROVE(); 1560 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 1561 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 1562 1563 #ifdef WITH_WME_UPDATE 1564 vap = TAILQ_FIRST(&ic->ic_vaps); 1565 if (vap == NULL) 1566 return (0); 1567 1568 /* We should factor this out into per-vap (*wme_update). */ 1569 lhw = ic->ic_softc; 1570 if (lhw->ops->conf_tx == NULL) 1571 return (0); 1572 1573 /* XXX-BZ check amount of hw queues */ 1574 hw = LHW_TO_HW(lhw); 1575 lvif = VAP_TO_LVIF(vap); 1576 vif = LVIF_TO_VIF(lvif); 1577 1578 ieee80211_wme_ic_getparams(ic, &chp); 1579 IEEE80211_LOCK(ic); 1580 for (ac = 0; ac < WME_NUM_AC; ac++) 1581 wmeparr[ac] = chp.cap_wmeParams[ac]; 1582 IEEE80211_UNLOCK(ic); 1583 1584 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 1585 LKPI_80211_LHW_LOCK(lhw); 1586 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 1587 struct wmeParams *wmep; 1588 1589 /* XXX-BZ should keep this in lvif? */ 1590 wmep = &wmeparr[ac]; 1591 bzero(&txqp, sizeof(txqp)); 1592 txqp.cw_min = wmep->wmep_logcwmin; 1593 txqp.cw_max = wmep->wmep_logcwmax; 1594 txqp.txop = wmep->wmep_txopLimit; 1595 txqp.aifs = wmep->wmep_aifsn; 1596 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 1597 if (error != 0) 1598 printf("%s: conf_tx ac %u failed %d\n", 1599 __func__, ac, error); 1600 } 1601 LKPI_80211_LHW_UNLOCK(lhw); 1602 changed = BSS_CHANGED_QOS; 1603 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 1604 #endif 1605 1606 return (0); 1607 } 1608 1609 static struct ieee80211vap * 1610 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 1611 int unit, enum ieee80211_opmode opmode, int flags, 1612 const uint8_t bssid[IEEE80211_ADDR_LEN], 1613 const uint8_t mac[IEEE80211_ADDR_LEN]) 1614 { 1615 struct lkpi_hw *lhw; 1616 struct ieee80211_hw *hw; 1617 struct lkpi_vif *lvif; 1618 struct ieee80211vap *vap; 1619 struct ieee80211_vif *vif; 1620 enum ieee80211_bss_changed changed; 1621 size_t len; 1622 int error; 1623 1624 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 1625 return (NULL); 1626 1627 lhw = ic->ic_softc; 1628 hw = LHW_TO_HW(lhw); 1629 1630 len = sizeof(*lvif); 1631 len += hw->vif_data_size; /* vif->drv_priv */ 1632 1633 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 1634 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 1635 TAILQ_INIT(&lvif->lsta_head); 1636 vap = LVIF_TO_VAP(lvif); 1637 1638 vif = LVIF_TO_VIF(lvif); 1639 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 1640 vif->p2p = false; 1641 vif->probe_req_reg = false; 1642 vif->type = lkpi_opmode_to_vif_type(opmode); 1643 lvif->wdev.iftype = vif->type; 1644 /* Need to fill in other fields as well. */ 1645 IMPROVE(); 1646 1647 /* XXX-BZ hardcoded for now! */ 1648 #if 1 1649 vif->chanctx_conf = NULL; 1650 vif->bss_conf.idle = true; 1651 vif->bss_conf.ps = false; 1652 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 1653 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 1654 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 1655 vif->bss_conf.qos = false; 1656 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 1657 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 1658 vif->bss_conf.assoc = false; 1659 vif->bss_conf.aid = 0; 1660 #endif 1661 #if 0 1662 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 1663 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 1664 vif->bss_conf.beacon_int = ic->ic_bintval; 1665 /* iwlwifi bug. */ 1666 if (vif->bss_conf.beacon_int < 16) 1667 vif->bss_conf.beacon_int = 16; 1668 #endif 1669 IMPROVE(); 1670 1671 error = lkpi_80211_mo_start(hw); 1672 if (error != 0) { 1673 printf("%s: failed to start hw: %d\n", __func__, error); 1674 mtx_destroy(&lvif->mtx); 1675 free(lvif, M_80211_VAP); 1676 return (NULL); 1677 } 1678 1679 error = lkpi_80211_mo_add_interface(hw, vif); 1680 if (error != 0) { 1681 IMPROVE(); /* XXX-BZ mo_stop()? */ 1682 printf("%s: failed to add interface: %d\n", __func__, error); 1683 mtx_destroy(&lvif->mtx); 1684 free(lvif, M_80211_VAP); 1685 return (NULL); 1686 } 1687 1688 LKPI_80211_LHW_LOCK(lhw); 1689 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 1690 LKPI_80211_LHW_UNLOCK(lhw); 1691 1692 /* Set bss_info. */ 1693 changed = 0; 1694 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 1695 1696 /* conf_tx setup; default WME? */ 1697 1698 /* Force MC init. */ 1699 lkpi_update_mcast_filter(ic, true); 1700 1701 IMPROVE(); 1702 1703 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 1704 1705 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 1706 lvif->iv_newstate = vap->iv_newstate; 1707 vap->iv_newstate = lkpi_iv_newstate; 1708 1709 /* Key management. */ 1710 if (lhw->ops->set_key != NULL) { 1711 #ifdef TRY_HW_CRYPTO 1712 vap->iv_key_set = lkpi_iv_key_set; 1713 vap->iv_key_delete = lkpi_iv_key_delete; 1714 #endif 1715 } 1716 1717 ieee80211_ratectl_init(vap); 1718 1719 /* Complete setup. */ 1720 ieee80211_vap_attach(vap, ieee80211_media_change, 1721 ieee80211_media_status, mac); 1722 1723 if (hw->max_listen_interval == 0) 1724 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 1725 hw->conf.listen_interval = hw->max_listen_interval; 1726 ic->ic_set_channel(ic); 1727 1728 /* XXX-BZ do we need to be able to update these? */ 1729 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 1730 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 1731 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 1732 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 1733 /* any others? */ 1734 IMPROVE(); 1735 1736 return (vap); 1737 } 1738 1739 static void 1740 lkpi_ic_vap_delete(struct ieee80211vap *vap) 1741 { 1742 struct ieee80211com *ic; 1743 struct lkpi_hw *lhw; 1744 struct ieee80211_hw *hw; 1745 struct lkpi_vif *lvif; 1746 struct ieee80211_vif *vif; 1747 1748 lvif = VAP_TO_LVIF(vap); 1749 vif = LVIF_TO_VIF(lvif); 1750 ic = vap->iv_ic; 1751 lhw = ic->ic_softc; 1752 hw = LHW_TO_HW(lhw); 1753 1754 LKPI_80211_LHW_LOCK(lhw); 1755 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 1756 LKPI_80211_LHW_UNLOCK(lhw); 1757 lkpi_80211_mo_remove_interface(hw, vif); 1758 1759 ieee80211_ratectl_deinit(vap); 1760 ieee80211_vap_detach(vap); 1761 mtx_destroy(&lvif->mtx); 1762 free(lvif, M_80211_VAP); 1763 } 1764 1765 static void 1766 lkpi_ic_update_mcast(struct ieee80211com *ic) 1767 { 1768 1769 lkpi_update_mcast_filter(ic, false); 1770 TRACEOK(); 1771 } 1772 1773 static void 1774 lkpi_ic_update_promisc(struct ieee80211com *ic) 1775 { 1776 1777 UNIMPLEMENTED; 1778 } 1779 1780 static void 1781 lkpi_ic_update_chw(struct ieee80211com *ic) 1782 { 1783 1784 UNIMPLEMENTED; 1785 } 1786 1787 /* Start / stop device. */ 1788 static void 1789 lkpi_ic_parent(struct ieee80211com *ic) 1790 { 1791 struct lkpi_hw *lhw; 1792 struct ieee80211_hw *hw; 1793 int error; 1794 bool start_all; 1795 1796 IMPROVE(); 1797 1798 lhw = ic->ic_softc; 1799 hw = LHW_TO_HW(lhw); 1800 start_all = false; 1801 1802 if (ic->ic_nrunning > 0) { 1803 error = lkpi_80211_mo_start(hw); 1804 if (error == 0) 1805 start_all = true; 1806 } else { 1807 lkpi_80211_mo_stop(hw); 1808 } 1809 1810 if (start_all) 1811 ieee80211_start_all(ic); 1812 } 1813 1814 bool 1815 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 1816 size_t ie_ids_len) 1817 { 1818 int i; 1819 1820 for (i = 0; i < ie_ids_len; i++) { 1821 if (ie == *ie_ids) 1822 return (true); 1823 } 1824 1825 return (false); 1826 } 1827 1828 /* Return true if skipped; false if error. */ 1829 bool 1830 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 1831 { 1832 size_t x; 1833 uint8_t l; 1834 1835 x = *xp; 1836 1837 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 1838 __func__, x, ies_len, ies)); 1839 l = ies[x + 1]; 1840 x += 2 + l; 1841 1842 if (x > ies_len) 1843 return (false); 1844 1845 *xp = x; 1846 return (true); 1847 } 1848 1849 static int 1850 lkpi_ieee80211_probereq_ie_alloc(struct ieee80211vap *vap, 1851 struct ieee80211com *ic, struct ieee80211_scan_ies *scan_ies, 1852 const uint8_t *ssid, size_t ssidlen) 1853 { 1854 1855 return (ieee80211_probereq_ie(vap, ic, 1856 &scan_ies->common_ies, &scan_ies->common_ie_len, 1857 ssid, ssidlen, true)); 1858 } 1859 1860 static void 1861 lkpi_ic_scan_start(struct ieee80211com *ic) 1862 { 1863 struct lkpi_hw *lhw; 1864 struct ieee80211_hw *hw; 1865 struct lkpi_vif *lvif; 1866 struct ieee80211_vif *vif; 1867 struct ieee80211_scan_state *ss; 1868 struct ieee80211vap *vap; 1869 int error; 1870 1871 lhw = ic->ic_softc; 1872 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) { 1873 /* A scan is still running. */ 1874 return; 1875 } 1876 1877 ss = ic->ic_scan; 1878 vap = ss->ss_vap; 1879 if (vap->iv_state != IEEE80211_S_SCAN) { 1880 /* Do not start a scan for now. */ 1881 return; 1882 } 1883 1884 hw = LHW_TO_HW(lhw); 1885 if ((ic->ic_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) == 0) { 1886 1887 lvif = VAP_TO_LVIF(vap); 1888 vif = LVIF_TO_VIF(lvif); 1889 1890 if (vap->iv_state == IEEE80211_S_SCAN) 1891 lkpi_hw_conf_idle(hw, false); 1892 1893 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 1894 /* net80211::scan_start() handled PS for us. */ 1895 IMPROVE(); 1896 /* XXX Also means it is too late to flush queues? 1897 * need to check iv_sta_ps or overload? */ 1898 /* XXX want to adjust ss end time/ maxdwell? */ 1899 1900 } else { 1901 struct ieee80211_channel *c; 1902 struct ieee80211_scan_request *hw_req; 1903 struct linuxkpi_ieee80211_channel *lc, **cpp; 1904 struct cfg80211_ssid *ssids; 1905 struct cfg80211_scan_6ghz_params *s6gp; 1906 size_t chan_len, nchan, ssids_len, s6ghzlen; 1907 int i; 1908 1909 ssids_len = ss->ss_nssid * sizeof(*ssids);; 1910 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 1911 1912 nchan = 0; 1913 for (i = ss->ss_next; i < ss->ss_last; i++) 1914 nchan++; 1915 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 1916 1917 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 1918 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 1919 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 1920 s6ghzlen + chan_len, M_LKPI80211, M_WAITOK | M_ZERO); 1921 1922 error = lkpi_ieee80211_probereq_ie_alloc(vap, ic, 1923 &hw_req->ies, NULL, -1); 1924 if (error != 0) 1925 ic_printf(ic, "ERROR: %s: probereq_ie returned %d\n", 1926 __func__, error); 1927 1928 hw_req->req.flags = 0; /* XXX ??? */ 1929 /* hw_req->req.wdev */ 1930 hw_req->req.wiphy = hw->wiphy; 1931 hw_req->req.no_cck = false; /* XXX */ 1932 #if 0 1933 /* This seems to pessimise default scanning behaviour. */ 1934 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 1935 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 1936 #endif 1937 #ifdef __notyet__ 1938 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 1939 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 1940 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 1941 #endif 1942 #if 0 1943 hw_req->req.ie_len = ; 1944 hw_req->req.ie = ; 1945 #endif 1946 1947 hw_req->req.n_channels = nchan; 1948 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 1949 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 1950 for (i = 0; i < nchan; i++) { 1951 *(cpp + i) = 1952 (struct linuxkpi_ieee80211_channel *)(lc + i); 1953 } 1954 for (i = 0; i < nchan; i++) { 1955 c = ss->ss_chans[ss->ss_next + i]; 1956 1957 lc->hw_value = c->ic_ieee; 1958 lc->center_freq = c->ic_freq; 1959 /* lc->flags */ 1960 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 1961 lc->max_power = c->ic_maxpower; 1962 /* lc-> ... */ 1963 lc++; 1964 } 1965 1966 hw_req->req.n_ssids = ss->ss_nssid; 1967 if (hw_req->req.n_ssids > 0) { 1968 ssids = (struct cfg80211_ssid *)lc; 1969 hw_req->req.ssids = ssids; 1970 for (i = 0; i < ss->ss_nssid; i++) { 1971 ssids->ssid_len = ss->ss_ssid[i].len; 1972 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 1973 ss->ss_ssid[i].len); 1974 ssids++; 1975 } 1976 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 1977 } else { 1978 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 1979 } 1980 1981 /* 6GHz one day. */ 1982 hw_req->req.n_6ghz_params = 0; 1983 hw_req->req.scan_6ghz_params = NULL; 1984 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 1985 /* s6gp->... */ 1986 1987 lvif = VAP_TO_LVIF(vap); 1988 vif = LVIF_TO_VIF(lvif); 1989 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 1990 if (error != 0) { 1991 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 1992 __func__, error); 1993 ieee80211_cancel_scan(vap); 1994 free(hw_req->ies.common_ies, M_80211_VAP); 1995 free(hw_req, M_LKPI80211); 1996 lhw->hw_req = NULL; 1997 } 1998 } 1999 } 2000 2001 static void 2002 lkpi_ic_scan_end(struct ieee80211com *ic) 2003 { 2004 struct lkpi_hw *lhw; 2005 2006 lhw = ic->ic_softc; 2007 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2008 return; 2009 } 2010 2011 if (ic->ic_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2012 /* Nothing to do. */ 2013 } else { 2014 struct ieee80211_hw *hw; 2015 struct lkpi_vif *lvif; 2016 struct ieee80211_vif *vif; 2017 struct ieee80211_scan_state *ss; 2018 struct ieee80211vap *vap; 2019 2020 hw = LHW_TO_HW(lhw); 2021 ss = ic->ic_scan; 2022 vap = ss->ss_vap; 2023 lvif = VAP_TO_LVIF(vap); 2024 vif = LVIF_TO_VIF(lvif); 2025 lkpi_80211_mo_sw_scan_complete(hw, vif); 2026 2027 /* Send PS to stop buffering if n80211 does not for us? */ 2028 2029 if (vap->iv_state == IEEE80211_S_SCAN) 2030 lkpi_hw_conf_idle(hw, true); 2031 } 2032 } 2033 2034 static void 2035 lkpi_ic_scan_curchan_nada(struct ieee80211_scan_state *ss __unused, 2036 unsigned long maxdwell __unused) 2037 { 2038 } 2039 2040 static void 2041 lkpi_ic_set_channel(struct ieee80211com *ic) 2042 { 2043 struct lkpi_hw *lhw; 2044 struct ieee80211_hw *hw; 2045 int error; 2046 2047 lhw = ic->ic_softc; 2048 #ifdef __no_longer__ 2049 /* For now only be concerned if scanning. */ 2050 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2051 IMPROVE(); 2052 return; 2053 } 2054 #endif 2055 2056 if (ic->ic_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2057 /* 2058 * AP scanning is taken care of by firmware, so only switch 2059 * channels in monitor mode (maybe, maybe not; to be 2060 * investigated at the right time). 2061 */ 2062 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 2063 UNIMPLEMENTED; 2064 } 2065 } else { 2066 struct ieee80211_channel *c = ic->ic_curchan; 2067 struct linuxkpi_ieee80211_channel *chan; 2068 struct cfg80211_chan_def chandef; 2069 2070 if (c == NULL || c == IEEE80211_CHAN_ANYC || 2071 lhw->ops->config == NULL) { 2072 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2073 c, lhw->ops->config); 2074 return; 2075 } 2076 2077 chan = lkpi_find_lkpi80211_chan(lhw, c); 2078 if (chan == NULL) { 2079 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2080 c, chan); 2081 return; 2082 } 2083 2084 memset(&chandef, 0, sizeof(chandef)); 2085 chandef.chan = chan; 2086 chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2087 chandef.center_freq1 = chandef.chan->center_freq; 2088 2089 /* XXX max power for scanning? */ 2090 IMPROVE(); 2091 2092 hw = LHW_TO_HW(lhw); 2093 hw->conf.chandef = chandef; 2094 2095 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2096 if (error != 0 && error != EOPNOTSUPP) { 2097 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2098 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2099 /* XXX should we unroll to the previous chandef? */ 2100 IMPROVE(); 2101 } else { 2102 /* Update radiotap channels as well. */ 2103 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2104 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2105 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2106 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2107 } 2108 2109 /* Currently PS is hard coded off! Not sure it belongs here. */ 2110 IMPROVE(); 2111 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2112 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2113 hw->conf.flags &= ~IEEE80211_CONF_PS; 2114 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2115 if (error != 0 && error != EOPNOTSUPP) 2116 ic_printf(ic, "ERROR: %s: config %#0x returned " 2117 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2118 error); 2119 } 2120 } 2121 } 2122 2123 static struct ieee80211_node * 2124 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2125 const uint8_t mac[IEEE80211_ADDR_LEN]) 2126 { 2127 struct ieee80211com *ic; 2128 struct lkpi_hw *lhw; 2129 struct ieee80211_hw *hw; 2130 struct lkpi_sta *lsta; 2131 struct ieee80211_sta *sta; 2132 struct lkpi_vif *lvif; 2133 struct ieee80211_vif *vif; 2134 struct ieee80211_node *ni; 2135 int tid; 2136 2137 ic = vap->iv_ic; 2138 lhw = ic->ic_softc; 2139 2140 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2141 if (lhw->ic_node_alloc != NULL) { 2142 ni = lhw->ic_node_alloc(vap, mac); 2143 if (ni == NULL) 2144 return (NULL); 2145 } 2146 2147 hw = LHW_TO_HW(lhw); 2148 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 2149 M_NOWAIT | M_ZERO); 2150 if (lsta == NULL) { 2151 if (lhw->ic_node_free != NULL) 2152 lhw->ic_node_free(ni); 2153 return (NULL); 2154 } 2155 2156 lsta->added_to_drv = false; 2157 lsta->state = IEEE80211_STA_NOTEXIST; 2158 #if 0 2159 /* 2160 * This needs to be done in node_init() as ieee80211_alloc_node() 2161 * will initialise the refcount after us. 2162 */ 2163 lsta->ni = ieee80211_ref_node(ni); 2164 #endif 2165 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 2166 ni->ni_drv_data = lsta; 2167 2168 lvif = VAP_TO_LVIF(vap); 2169 vif = LVIF_TO_VIF(lvif); 2170 sta = LSTA_TO_STA(lsta); 2171 2172 IEEE80211_ADDR_COPY(sta->addr, mac); 2173 for (tid = 0; tid < nitems(sta->txq); tid++) { 2174 struct lkpi_txq *ltxq; 2175 2176 /* 2177 * We are neither limiting ourselves to hw.queues here, 2178 * nor do we check if driver wants IEEE80211_NUM_TIDS queue. 2179 */ 2180 2181 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 2182 M_LKPI80211, M_NOWAIT | M_ZERO); 2183 if (ltxq == NULL) 2184 goto cleanup; 2185 ltxq->seen_dequeue = false; 2186 skb_queue_head_init(<xq->skbq); 2187 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 2188 if (tid == IEEE80211_NUM_TIDS) { 2189 IMPROVE(); 2190 ltxq->txq.ac = IEEE80211_AC_VO; 2191 } else { 2192 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 2193 } 2194 ltxq->txq.tid = tid; 2195 ltxq->txq.sta = sta; 2196 ltxq->txq.vif = vif; 2197 sta->txq[tid] = <xq->txq; 2198 } 2199 2200 /* Deferred TX path. */ 2201 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 2202 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 2203 mbufq_init(&lsta->txq, IFQ_MAXLEN); 2204 2205 return (ni); 2206 2207 cleanup: 2208 for (; tid >= 0; tid--) 2209 free(sta->txq[tid], M_LKPI80211); 2210 free(lsta, M_LKPI80211); 2211 if (lhw->ic_node_free != NULL) 2212 lhw->ic_node_free(ni); 2213 return (NULL); 2214 } 2215 2216 static int 2217 lkpi_ic_node_init(struct ieee80211_node *ni) 2218 { 2219 struct ieee80211com *ic; 2220 struct lkpi_hw *lhw; 2221 struct lkpi_sta *lsta; 2222 struct lkpi_vif *lvif; 2223 int error; 2224 2225 ic = ni->ni_ic; 2226 lhw = ic->ic_softc; 2227 2228 if (lhw->ic_node_init != NULL) { 2229 error = lhw->ic_node_init(ni); 2230 if (error != 0) 2231 return (error); 2232 } 2233 2234 lvif = VAP_TO_LVIF(ni->ni_vap); 2235 2236 lsta = ni->ni_drv_data; 2237 2238 /* Now take the reference before linking it to the table. */ 2239 lsta->ni = ieee80211_ref_node(ni); 2240 2241 LKPI_80211_LVIF_LOCK(lvif); 2242 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 2243 LKPI_80211_LVIF_UNLOCK(lvif); 2244 2245 /* XXX-BZ Sync other state over. */ 2246 IMPROVE(); 2247 2248 return (0); 2249 } 2250 2251 static void 2252 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2253 { 2254 struct ieee80211com *ic; 2255 struct lkpi_hw *lhw; 2256 2257 ic = ni->ni_ic; 2258 lhw = ic->ic_softc; 2259 2260 /* XXX-BZ remove from driver, ... */ 2261 IMPROVE(); 2262 2263 if (lhw->ic_node_cleanup != NULL) 2264 lhw->ic_node_cleanup(ni); 2265 } 2266 2267 static void 2268 lkpi_ic_node_free(struct ieee80211_node *ni) 2269 { 2270 struct ieee80211com *ic; 2271 struct lkpi_hw *lhw; 2272 struct lkpi_sta *lsta; 2273 2274 ic = ni->ni_ic; 2275 lhw = ic->ic_softc; 2276 lsta = ni->ni_drv_data; 2277 2278 /* XXX-BZ free resources, ... */ 2279 IMPROVE(); 2280 2281 /* Flush mbufq (make sure to release ni refs!). */ 2282 #ifdef __notyet__ 2283 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2284 __func__, lsta, mbufq_len(&lsta->txq))); 2285 #endif 2286 /* Drain taskq. */ 2287 2288 /* Drain sta->txq[] */ 2289 mtx_destroy(&lsta->txq_mtx); 2290 2291 /* Remove lsta if added_to_drv. */ 2292 /* Remove lsta from vif */ 2293 2294 /* remove ref from lsta node... */ 2295 2296 if (lhw->ic_node_free != NULL) 2297 lhw->ic_node_free(ni); 2298 2299 /* Free lsta. */ 2300 } 2301 2302 static int 2303 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2304 const struct ieee80211_bpf_params *params __unused) 2305 { 2306 struct lkpi_sta *lsta; 2307 2308 lsta = ni->ni_drv_data; 2309 2310 /* Queue the packet and enqueue the task to handle it. */ 2311 LKPI_80211_LSTA_LOCK(lsta); 2312 mbufq_enqueue(&lsta->txq, m); 2313 LKPI_80211_LSTA_UNLOCK(lsta); 2314 2315 if (debug_80211 & D80211_TRACE_TX) 2316 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2317 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2318 mbufq_len(&lsta->txq)); 2319 2320 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2321 return (0); 2322 } 2323 2324 static void 2325 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2326 { 2327 struct ieee80211_node *ni; 2328 struct ieee80211_frame *wh; 2329 struct ieee80211_key *k; 2330 struct sk_buff *skb; 2331 struct ieee80211com *ic; 2332 struct lkpi_hw *lhw; 2333 struct ieee80211_hw *hw; 2334 struct lkpi_vif *lvif; 2335 struct ieee80211_vif *vif; 2336 struct ieee80211_channel *c; 2337 struct ieee80211_tx_control control; 2338 struct ieee80211_tx_info *info; 2339 struct ieee80211_sta *sta; 2340 void *buf; 2341 int ac; 2342 2343 M_ASSERTPKTHDR(m); 2344 #ifdef LINUXKPI_DEBUG_80211 2345 if (debug_80211 & D80211_TRACE_TX_DUMP) 2346 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2347 #endif 2348 2349 ni = lsta->ni; 2350 #ifndef TRY_HW_CRYPTO 2351 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2352 wh = mtod(m, struct ieee80211_frame *); 2353 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2354 /* Retrieve key for TX && do software encryption. */ 2355 k = ieee80211_crypto_encap(ni, m); 2356 if (k == NULL) { 2357 ieee80211_free_node(ni); 2358 m_freem(m); 2359 return; 2360 } 2361 } 2362 #endif 2363 2364 ic = ni->ni_ic; 2365 lhw = ic->ic_softc; 2366 hw = LHW_TO_HW(lhw); 2367 c = ni->ni_chan; 2368 2369 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 2370 struct lkpi_radiotap_tx_hdr *rtap; 2371 2372 rtap = &lhw->rtap_tx; 2373 rtap->wt_flags = 0; 2374 if (k != NULL) 2375 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2376 if (m->m_flags & M_FRAG) 2377 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 2378 IMPROVE(); 2379 rtap->wt_rate = 0; 2380 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 2381 rtap->wt_chan_freq = htole16(c->ic_freq); 2382 rtap->wt_chan_flags = htole16(c->ic_flags); 2383 } 2384 2385 ieee80211_radiotap_tx(ni->ni_vap, m); 2386 } 2387 2388 /* 2389 * net80211 should handle hw->extra_tx_headroom. 2390 * Though for as long as we are copying we don't mind. 2391 */ 2392 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 2393 if (skb == NULL) { 2394 printf("XXX ERROR %s: skb alloc failed\n", __func__); 2395 ieee80211_free_node(ni); 2396 m_freem(m); 2397 return; 2398 } 2399 skb_reserve(skb, hw->extra_tx_headroom); 2400 2401 /* XXX-BZ we need a SKB version understanding mbuf. */ 2402 /* Save the mbuf for ieee80211_tx_complete(). */ 2403 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 2404 skb->m = m; 2405 #if 0 2406 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 2407 #else 2408 buf = skb_put(skb, m->m_pkthdr.len); 2409 m_copydata(m, 0, m->m_pkthdr.len, buf); 2410 #endif 2411 /* Save the ni. */ 2412 m->m_pkthdr.PH_loc.ptr = ni; 2413 2414 lvif = VAP_TO_LVIF(ni->ni_vap); 2415 vif = LVIF_TO_VIF(lvif); 2416 2417 /* XXX-BZ review this at some point [4] vs. [8] vs. [16](TID). */ 2418 ac = M_WME_GETAC(m); 2419 skb->priority = WME_AC_TO_TID(ac); 2420 ac = lkpi_ac_net_to_l80211(ac); 2421 skb_set_queue_mapping(skb, ac); 2422 2423 info = IEEE80211_SKB_CB(skb); 2424 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 2425 /* Slight delay; probably only happens on scanning so fine? */ 2426 if (c == NULL || c == IEEE80211_CHAN_ANYC) 2427 c = ic->ic_curchan; 2428 info->band = lkpi_net80211_chan_to_nl80211_band(c); 2429 info->hw_queue = ac; /* XXX-BZ is this correct? */ 2430 if (m->m_flags & M_EAPOL) 2431 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 2432 info->control.vif = vif; 2433 /* XXX-BZ info->control.rates */ 2434 2435 lsta = lkpi_find_lsta_by_ni(lvif, ni); 2436 if (lsta != NULL) { 2437 sta = LSTA_TO_STA(lsta); 2438 #ifdef TRY_HW_CRYPTO 2439 info->control.hw_key = lsta->kc; 2440 #endif 2441 } else { 2442 sta = NULL; 2443 } 2444 2445 IMPROVE(); 2446 2447 if (sta != NULL) { 2448 struct lkpi_txq *ltxq; 2449 2450 ltxq = TXQ_TO_LTXQ(sta->txq[ac]); /* XXX-BZ re-check */ 2451 /* 2452 * We currently do not use queues but do direct TX. 2453 * The exception to the rule is initial packets, as we cannot 2454 * TX until queues are allocated (at least for iwlwifi). 2455 * So we wake_tx_queue in newstate and register any dequeue 2456 * calls. In the time until then we queue packets and 2457 * let the driver deal with them. 2458 */ 2459 if (!ltxq->seen_dequeue) { 2460 2461 /* Prevent an ordering problem, likely other issues. */ 2462 while (!skb_queue_empty(<xq->skbq)) { 2463 struct sk_buff *skb2; 2464 2465 skb2 = skb_dequeue(<xq->skbq); 2466 if (skb2 != NULL) { 2467 memset(&control, 0, sizeof(control)); 2468 control.sta = sta; 2469 lkpi_80211_mo_tx(hw, &control, skb2); 2470 } 2471 } 2472 goto ops_tx; 2473 } 2474 if (0 && ltxq->seen_dequeue && skb_queue_empty(<xq->skbq)) 2475 goto ops_tx; 2476 2477 skb_queue_tail(<xq->skbq, skb); 2478 if (debug_80211 & D80211_TRACE_TX) 2479 printf("%s:%d lsta %p sta %p ni %p %6D skb %p lxtq %p " 2480 "qlen %u WAKE_TX_Q ac %d prio %u qmap %u\n", 2481 __func__, __LINE__, lsta, sta, ni, 2482 ni->ni_macaddr, ":", skb, ltxq, 2483 skb_queue_len(<xq->skbq), ac, 2484 skb->priority, skb->qmap); 2485 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[ac]); /* XXX-BZ */ 2486 return; 2487 } 2488 2489 ops_tx: 2490 if (debug_80211 & D80211_TRACE_TX) 2491 printf("%s:%d lsta %p sta %p ni %p %6D skb %p TX ac %d prio %u qmap %u\n", 2492 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 2493 skb, ac, skb->priority, skb->qmap); 2494 memset(&control, 0, sizeof(control)); 2495 control.sta = sta; 2496 2497 lkpi_80211_mo_tx(hw, &control, skb); 2498 return; 2499 } 2500 2501 static void 2502 lkpi_80211_txq_task(void *ctx, int pending) 2503 { 2504 struct lkpi_sta *lsta; 2505 struct ieee80211_node *ni; 2506 struct mbufq mq; 2507 struct mbuf *m; 2508 2509 lsta = ctx; 2510 ni = lsta->ni; 2511 2512 if (debug_80211 & D80211_TRACE_TX) 2513 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 2514 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2515 pending, mbufq_len(&lsta->txq)); 2516 2517 mbufq_init(&mq, IFQ_MAXLEN); 2518 2519 LKPI_80211_LSTA_LOCK(lsta); 2520 mbufq_concat(&mq, &lsta->txq); 2521 LKPI_80211_LSTA_UNLOCK(lsta); 2522 2523 m = mbufq_dequeue(&mq); 2524 while (m != NULL) { 2525 lkpi_80211_txq_tx_one(lsta, m); 2526 m = mbufq_dequeue(&mq); 2527 } 2528 } 2529 2530 static int 2531 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 2532 { 2533 2534 /* XXX TODO */ 2535 IMPROVE(); 2536 2537 /* Quick and dirty cheating hack. */ 2538 struct ieee80211_node *ni; 2539 2540 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 2541 return (lkpi_ic_raw_xmit(ni, m, NULL)); 2542 } 2543 2544 static void 2545 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 2546 int *n, struct ieee80211_channel *c) 2547 { 2548 struct lkpi_hw *lhw; 2549 struct ieee80211_hw *hw; 2550 struct linuxkpi_ieee80211_channel *channels; 2551 uint8_t bands[IEEE80211_MODE_BYTES]; 2552 int chan_flags, error, i, nchans; 2553 2554 /* Channels */ 2555 lhw = ic->ic_softc; 2556 hw = LHW_TO_HW(lhw); 2557 2558 /* NL80211_BAND_2GHZ */ 2559 nchans = 0; 2560 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 2561 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 2562 if (nchans > 0) { 2563 memset(bands, 0, sizeof(bands)); 2564 chan_flags = 0; 2565 setbit(bands, IEEE80211_MODE_11B); 2566 /* XXX-BZ unclear how to check for 11g. */ 2567 setbit(bands, IEEE80211_MODE_11G); 2568 #ifdef __notyet__ 2569 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 2570 setbit(bands, IEEE80211_MODE_11NG); 2571 chan_flags |= NET80211_CBW_FLAG_HT40; 2572 } 2573 #endif 2574 2575 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 2576 for (i = 0; i < nchans; i++) { 2577 uint32_t nflags = 0; 2578 int cflags = chan_flags; 2579 2580 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 2581 printf("%s: %s: Skipping disabled chan " 2582 "[%u/%u/%#x]\n", ic->ic_name, __func__, 2583 channels[i].hw_value, 2584 channels[i].center_freq, channels[i].flags); 2585 continue; 2586 } 2587 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 2588 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 2589 if (channels[i].flags & IEEE80211_CHAN_RADAR) 2590 nflags |= IEEE80211_CHAN_DFS; 2591 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 2592 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 2593 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 2594 cflags &= ~NET80211_CBW_FLAG_VHT80; 2595 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 2596 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 2597 cflags &= ~NET80211_CBW_FLAG_HT40; 2598 2599 error = ieee80211_add_channel_cbw(c, maxchan, n, 2600 channels[i].hw_value, channels[i].center_freq, 2601 channels[i].max_power, 2602 nflags, bands, chan_flags); 2603 if (error != 0) { 2604 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 2605 "returned error %d\n", ic->ic_name, 2606 __func__, channels[i].hw_value, 2607 channels[i].center_freq, channels[i].flags, 2608 nflags, chan_flags, cflags, error); 2609 break; 2610 } 2611 } 2612 } 2613 2614 /* NL80211_BAND_5GHZ */ 2615 nchans = 0; 2616 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 2617 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 2618 if (nchans > 0) { 2619 memset(bands, 0, sizeof(bands)); 2620 chan_flags = 0; 2621 setbit(bands, IEEE80211_MODE_11A); 2622 #ifdef __not_yet__ 2623 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 2624 setbit(bands, IEEE80211_MODE_11NA); 2625 chan_flags |= NET80211_CBW_FLAG_HT40; 2626 } 2627 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 2628 2629 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 2630 ic->ic_vhtcaps = 2631 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 2632 2633 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 2634 chan_flags |= NET80211_CBW_FLAG_VHT80; 2635 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 2636 ic->ic_vhtcaps)) 2637 chan_flags |= NET80211_CBW_FLAG_VHT160; 2638 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 2639 ic->ic_vhtcaps)) 2640 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 2641 } 2642 #endif 2643 2644 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 2645 for (i = 0; i < nchans; i++) { 2646 uint32_t nflags = 0; 2647 int cflags = chan_flags; 2648 2649 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 2650 printf("%s: %s: Skipping disabled chan " 2651 "[%u/%u/%#x]\n", ic->ic_name, __func__, 2652 channels[i].hw_value, 2653 channels[i].center_freq, channels[i].flags); 2654 continue; 2655 } 2656 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 2657 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 2658 if (channels[i].flags & IEEE80211_CHAN_RADAR) 2659 nflags |= IEEE80211_CHAN_DFS; 2660 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 2661 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 2662 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 2663 cflags &= ~NET80211_CBW_FLAG_VHT80; 2664 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 2665 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 2666 cflags &= ~NET80211_CBW_FLAG_HT40; 2667 2668 error = ieee80211_add_channel_cbw(c, maxchan, n, 2669 channels[i].hw_value, channels[i].center_freq, 2670 channels[i].max_power, 2671 nflags, bands, chan_flags); 2672 if (error != 0) { 2673 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 2674 "returned error %d\n", ic->ic_name, 2675 __func__, channels[i].hw_value, 2676 channels[i].center_freq, channels[i].flags, 2677 nflags, chan_flags, cflags, error); 2678 break; 2679 } 2680 } 2681 } 2682 } 2683 2684 static void * 2685 lkpi_ieee80211_ifalloc(void) 2686 { 2687 struct ieee80211com *ic; 2688 2689 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 2690 if (ic == NULL) 2691 return (NULL); 2692 2693 /* Setting these happens later when we have device information. */ 2694 ic->ic_softc = NULL; 2695 ic->ic_name = "linuxkpi"; 2696 2697 return (ic); 2698 } 2699 2700 struct ieee80211_hw * 2701 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 2702 { 2703 struct ieee80211_hw *hw; 2704 struct lkpi_hw *lhw; 2705 struct wiphy *wiphy; 2706 2707 /* Get us and the driver data also allocated. */ 2708 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 2709 if (wiphy == NULL) 2710 return (NULL); 2711 2712 lhw = wiphy_priv(wiphy); 2713 lhw->ops = ops; 2714 lhw->workq = alloc_ordered_workqueue(wiphy_name(wiphy), 0); 2715 if (lhw->workq == NULL) { 2716 wiphy_free(wiphy); 2717 return (NULL); 2718 } 2719 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 2720 TAILQ_INIT(&lhw->lvif_head); 2721 2722 /* 2723 * XXX-BZ TODO make sure there is a "_null" function to all ops 2724 * not initialized. 2725 */ 2726 hw = LHW_TO_HW(lhw); 2727 hw->wiphy = wiphy; 2728 hw->conf.flags |= IEEE80211_CONF_IDLE; 2729 hw->priv = (void *)(lhw + 1); 2730 2731 /* BSD Specific. */ 2732 lhw->ic = lkpi_ieee80211_ifalloc(); 2733 if (lhw->ic == NULL) { 2734 ieee80211_free_hw(hw); 2735 return (NULL); 2736 } 2737 2738 IMPROVE(); 2739 2740 return (hw); 2741 } 2742 2743 void 2744 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 2745 { 2746 struct lkpi_hw *lhw; 2747 2748 lhw = HW_TO_LHW(hw); 2749 free(lhw->ic, M_LKPI80211); 2750 lhw->ic = NULL; 2751 2752 /* Cleanup more of lhw here or in wiphy_free()? */ 2753 mtx_destroy(&lhw->mtx); 2754 IMPROVE(); 2755 } 2756 2757 void 2758 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 2759 { 2760 struct lkpi_hw *lhw; 2761 struct ieee80211com *ic; 2762 2763 lhw = HW_TO_LHW(hw); 2764 ic = lhw->ic; 2765 2766 /* Now set a proper name before ieee80211_ifattach(). */ 2767 ic->ic_softc = lhw; 2768 ic->ic_name = name; 2769 2770 /* XXX-BZ do we also need to set wiphy name? */ 2771 } 2772 2773 struct ieee80211_hw * 2774 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 2775 { 2776 struct lkpi_hw *lhw; 2777 2778 lhw = wiphy_priv(wiphy); 2779 return (LHW_TO_HW(lhw)); 2780 } 2781 2782 static void 2783 lkpi_radiotap_attach(struct lkpi_hw *lhw) 2784 { 2785 struct ieee80211com *ic; 2786 2787 ic = lhw->ic; 2788 ieee80211_radiotap_attach(ic, 2789 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 2790 LKPI_RTAP_TX_FLAGS_PRESENT, 2791 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 2792 LKPI_RTAP_RX_FLAGS_PRESENT); 2793 } 2794 2795 void 2796 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 2797 { 2798 struct ieee80211com *ic; 2799 struct lkpi_hw *lhw; 2800 #ifdef TRY_HW_CRYPTO 2801 int i; 2802 #endif 2803 2804 lhw = HW_TO_LHW(hw); 2805 ic = lhw->ic; 2806 2807 /* XXX-BZ figure this out how they count his... */ 2808 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 2809 IEEE80211_ADDR_COPY(ic->ic_macaddr, 2810 hw->wiphy->perm_addr); 2811 } else if (hw->wiphy->n_addresses > 0) { 2812 /* We take the first one. */ 2813 IEEE80211_ADDR_COPY(ic->ic_macaddr, 2814 hw->wiphy->addresses[0].addr); 2815 } else { 2816 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 2817 } 2818 2819 ic->ic_headroom = hw->extra_tx_headroom; 2820 2821 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 2822 ic->ic_opmode = IEEE80211_M_STA; 2823 2824 /* Set device capabilities. */ 2825 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 2826 ic->ic_caps = 2827 IEEE80211_C_STA | 2828 IEEE80211_C_MONITOR | 2829 IEEE80211_C_WPA | /* WPA/RSN */ 2830 IEEE80211_C_WME | 2831 #if 0 2832 IEEE80211_C_PMGT | 2833 #endif 2834 IEEE80211_C_SHSLOT | /* short slot time supported */ 2835 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 2836 ; 2837 #if 0 2838 /* Scanning is a different kind of beast to re-work. */ 2839 ic->ic_caps |= IEEE80211_C_BGSCAN; 2840 #endif 2841 if (lhw->ops->hw_scan && 2842 ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2843 /* Advertise full-offload scanning */ 2844 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 2845 } 2846 2847 #ifdef __notyet__ 2848 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 2849 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 2850 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 2851 | IEEE80211_HTCAP_MAXAMSDU_3839 2852 /* max A-MSDU length */ 2853 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 2854 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 2855 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 2856 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 2857 #endif 2858 2859 ic->ic_cryptocaps = 0; 2860 #ifdef TRY_HW_CRYPTO 2861 if (hw->wiphy->n_cipher_suites > 0) { 2862 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 2863 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 2864 hw->wiphy->cipher_suites[i]); 2865 } 2866 #endif 2867 2868 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 2869 ic->ic_channels); 2870 2871 ieee80211_ifattach(ic); 2872 2873 ic->ic_update_mcast = lkpi_ic_update_mcast; 2874 ic->ic_update_promisc = lkpi_ic_update_promisc; 2875 ic->ic_update_chw = lkpi_ic_update_chw; 2876 ic->ic_parent = lkpi_ic_parent; 2877 ic->ic_scan_start = lkpi_ic_scan_start; 2878 ic->ic_scan_end = lkpi_ic_scan_end; 2879 if (lhw->ops->hw_scan && 2880 ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) 2881 ic->ic_scan_curchan = lkpi_ic_scan_curchan_nada; 2882 ic->ic_set_channel = lkpi_ic_set_channel; 2883 ic->ic_transmit = lkpi_ic_transmit; 2884 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 2885 ic->ic_vap_create = lkpi_ic_vap_create; 2886 ic->ic_vap_delete = lkpi_ic_vap_delete; 2887 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 2888 ic->ic_wme.wme_update = lkpi_ic_wme_update; 2889 2890 lhw->ic_node_alloc = ic->ic_node_alloc; 2891 ic->ic_node_alloc = lkpi_ic_node_alloc; 2892 lhw->ic_node_init = ic->ic_node_init; 2893 ic->ic_node_init = lkpi_ic_node_init; 2894 lhw->ic_node_cleanup = ic->ic_node_cleanup; 2895 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 2896 lhw->ic_node_free = ic->ic_node_free; 2897 ic->ic_node_free = lkpi_ic_node_free; 2898 2899 lkpi_radiotap_attach(lhw); 2900 2901 if (bootverbose) 2902 ieee80211_announce(ic); 2903 } 2904 2905 void 2906 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 2907 { 2908 struct lkpi_hw *lhw; 2909 struct ieee80211com *ic; 2910 2911 lhw = HW_TO_LHW(hw); 2912 ic = lhw->ic; 2913 ieee80211_ifdetach(ic); 2914 } 2915 2916 void 2917 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 2918 enum ieee80211_iface_iter flags, 2919 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 2920 void *arg) 2921 { 2922 struct lkpi_hw *lhw; 2923 struct lkpi_vif *lvif; 2924 struct ieee80211_vif *vif; 2925 bool active, atomic; 2926 2927 lhw = HW_TO_LHW(hw); 2928 2929 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 2930 IEEE80211_IFACE_ITER_RESUME_ALL| 2931 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 2932 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 2933 __func__, flags); 2934 } 2935 2936 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 2937 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 2938 2939 if (atomic) 2940 LKPI_80211_LHW_LOCK(lhw); 2941 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 2942 struct ieee80211vap *vap; 2943 2944 vif = LVIF_TO_VIF(lvif); 2945 2946 /* 2947 * If we want "active" interfaces, we need to distinguish on 2948 * whether the driver knows about them or not to be able to 2949 * handle the "resume" case correctly. Skip the ones the 2950 * driver does not know about. 2951 */ 2952 if (active && !lvif->added_to_drv && 2953 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 2954 continue; 2955 2956 /* 2957 * Run the iterator function if we are either not asking 2958 * asking for active only or if the VAP is "running". 2959 */ 2960 /* XXX-BZ probably should have state in the lvif as well. */ 2961 vap = LVIF_TO_VAP(lvif); 2962 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 2963 iterfunc(arg, vif->addr, vif); 2964 } 2965 if (atomic) 2966 LKPI_80211_LHW_UNLOCK(lhw); 2967 } 2968 2969 void 2970 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 2971 struct ieee80211_vif *vif, 2972 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 2973 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 2974 void *arg) 2975 { 2976 2977 UNIMPLEMENTED; 2978 } 2979 2980 void 2981 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 2982 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 2983 void *), 2984 void *arg) 2985 { 2986 2987 UNIMPLEMENTED; 2988 } 2989 2990 void 2991 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 2992 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 2993 { 2994 struct lkpi_hw *lhw; 2995 struct lkpi_vif *lvif; 2996 struct lkpi_sta *lsta; 2997 struct ieee80211_sta *sta; 2998 2999 KASSERT(hw != NULL && iterfunc != NULL, 3000 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3001 3002 lhw = HW_TO_LHW(hw); 3003 3004 LKPI_80211_LHW_LOCK(lhw); 3005 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3006 3007 LKPI_80211_LVIF_LOCK(lvif); 3008 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3009 if (!lsta->added_to_drv) 3010 continue; 3011 sta = LSTA_TO_STA(lsta); 3012 iterfunc(arg, sta); 3013 } 3014 LKPI_80211_LVIF_UNLOCK(lvif); 3015 } 3016 LKPI_80211_LHW_UNLOCK(lhw); 3017 } 3018 3019 int 3020 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3021 struct linuxkpi_ieee80211_regdomain *regd) 3022 { 3023 struct lkpi_hw *lhw; 3024 struct ieee80211com *ic; 3025 struct ieee80211_regdomain *rd; 3026 3027 lhw = wiphy_priv(wiphy); 3028 ic = lhw->ic; 3029 3030 rd = &ic->ic_regdomain; 3031 if (rd->isocc[0] == '\0') { 3032 rd->isocc[0] = regd->alpha2[0]; 3033 rd->isocc[1] = regd->alpha2[1]; 3034 } 3035 3036 TODO(); 3037 /* XXX-BZ finish the rest. */ 3038 3039 return (0); 3040 } 3041 3042 void 3043 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3044 struct cfg80211_scan_info *info) 3045 { 3046 struct lkpi_hw *lhw; 3047 struct ieee80211com *ic; 3048 struct ieee80211_scan_state *ss; 3049 3050 lhw = wiphy_priv(hw->wiphy); 3051 ic = lhw->ic; 3052 ss = ic->ic_scan; 3053 3054 ieee80211_scan_done(ss->ss_vap); 3055 3056 LKPI_80211_LHW_LOCK(lhw); 3057 free(lhw->hw_req->ies.common_ies, M_80211_VAP); 3058 free(lhw->hw_req, M_LKPI80211); 3059 lhw->hw_req = NULL; 3060 lhw->scan_flags &= ~LKPI_SCAN_RUNNING; 3061 wakeup(lhw); 3062 LKPI_80211_LHW_UNLOCK(lhw); 3063 3064 return; 3065 } 3066 3067 void 3068 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3069 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3070 { 3071 struct epoch_tracker et; 3072 struct lkpi_hw *lhw; 3073 struct ieee80211com *ic; 3074 struct mbuf *m; 3075 struct skb_shared_info *shinfo; 3076 struct ieee80211_rx_status *rx_status; 3077 struct ieee80211_rx_stats rx_stats; 3078 struct ieee80211_node *ni; 3079 struct ieee80211vap *vap; 3080 struct ieee80211_frame_min *wh; 3081 struct ieee80211_hdr *hdr; 3082 struct lkpi_sta *lsta; 3083 int i, offset, ok, type; 3084 3085 if (skb->len < 2) { 3086 /* Need 80211 stats here. */ 3087 IMPROVE(); 3088 goto err; 3089 } 3090 3091 /* 3092 * For now do the data copy; we can later improve things. Might even 3093 * have an mbuf backing the skb data then? 3094 */ 3095 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3096 if (m == NULL) 3097 goto err; 3098 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3099 3100 shinfo = skb_shinfo(skb); 3101 offset = m->m_len; 3102 for (i = 0; i < shinfo->nr_frags; i++) { 3103 m_copyback(m, offset, shinfo->frags[i].size, 3104 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3105 shinfo->frags[i].offset); 3106 offset += shinfo->frags[i].size; 3107 } 3108 3109 rx_status = IEEE80211_SKB_RXCB(skb); 3110 3111 #ifdef LINUXKPI_DEBUG_80211 3112 hdr = (void *)skb->data; 3113 if ((debug_80211 & D80211_TRACE_RX_BEACONS) == 0 && 3114 ieee80211_is_beacon(hdr->frame_control)) 3115 goto no_trace_beacons; 3116 3117 if (debug_80211 & D80211_TRACE_RX) 3118 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3119 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u\n", 3120 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3121 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3122 shinfo, shinfo->nr_frags, 3123 m, m->m_pkthdr.len, m->m_len); 3124 3125 if (debug_80211 & D80211_TRACE_RX_DUMP) 3126 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3127 3128 /* Implement a dump_rxcb() !!! */ 3129 if (debug_80211 & D80211_TRACE_RX) 3130 printf("TRACE %s: RXCB: %u %u %u, %#0x, %u, %#0x, %#0x, " 3131 "%u band %u, %u %u %u %u, %u, %#x %#x %#x %#x %u %u %u\n", 3132 __func__, 3133 rx_status->boottime_ns, 3134 rx_status->mactime, 3135 rx_status->device_timestamp, 3136 rx_status->flag, 3137 rx_status->freq, 3138 rx_status->bw, 3139 rx_status->encoding, 3140 rx_status->ampdu_reference, 3141 rx_status->band, 3142 rx_status->chains, 3143 rx_status->chain_signal[0], 3144 rx_status->chain_signal[1], 3145 rx_status->chain_signal[2], 3146 rx_status->signal, 3147 rx_status->enc_flags, 3148 rx_status->he_dcm, 3149 rx_status->he_gi, 3150 rx_status->he_ru, 3151 rx_status->zero_length_psdu_type, 3152 rx_status->nss, 3153 rx_status->rate_idx); 3154 no_trace_beacons: 3155 #endif 3156 3157 memset(&rx_stats, 0, sizeof(rx_stats)); 3158 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3159 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3160 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3161 rx_stats.c_rssi = rx_status->signal; 3162 else 3163 rx_stats.c_rssi = 0; /* XXX */ 3164 rx_stats.c_nf = -96; /* XXX */ 3165 rx_stats.r_flags |= IEEE80211_R_BAND; 3166 rx_stats.c_band = 3167 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3168 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3169 rx_stats.c_freq = rx_status->freq; 3170 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3171 3172 /* XXX-BZ correct hardcoded rssi and noise floor. */ 3173 /* XXX (*sta_statistics)() to get to some of that? */ 3174 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3175 3176 lhw = HW_TO_LHW(hw); 3177 ic = lhw->ic; 3178 3179 ok = ieee80211_add_rx_params(m, &rx_stats); 3180 if (ok == 0) { 3181 counter_u64_add(ic->ic_ierrors, 1); 3182 goto err; 3183 } 3184 3185 if (sta != NULL) { 3186 lsta = STA_TO_LSTA(sta); 3187 ni = ieee80211_ref_node(lsta->ni); 3188 } else { 3189 wh = mtod(m, struct ieee80211_frame_min *); 3190 ni = ieee80211_find_rxnode(ic, wh); 3191 if (ni != NULL) 3192 lsta = ni->ni_drv_data; 3193 } 3194 3195 if (ni != NULL) 3196 vap = ni->ni_vap; 3197 else 3198 /* 3199 * XXX-BZ can we improve this by looking at the frame hdr 3200 * or other meta-data passed up? 3201 */ 3202 vap = TAILQ_FIRST(&ic->ic_vaps); 3203 3204 if (debug_80211 & D80211_TRACE_RX) 3205 printf("TRACE %s: sta %p lsta %p ni %p vap %p\n", __func__, sta, lsta, ni, vap); 3206 3207 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3208 ieee80211_radiotap_active_vap(vap)) { 3209 struct lkpi_radiotap_rx_hdr *rtap; 3210 3211 rtap = &lhw->rtap_rx; 3212 rtap->wr_tsft = rx_status->device_timestamp; 3213 rtap->wr_flags = 0; 3214 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 3215 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3216 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3217 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 3218 #if 0 /* .. or it does not given we strip it below. */ 3219 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3220 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 3221 #endif 3222 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 3223 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 3224 rtap->wr_rate = 0; 3225 IMPROVE(); 3226 /* XXX TODO status->encoding / rate_index / bw */ 3227 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 3228 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 3229 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 3230 rtap->wr_dbm_antsignal = rx_stats.c_rssi; 3231 rtap->wr_dbm_antnoise = rx_stats.c_nf; 3232 } 3233 3234 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3235 m_adj(m, -IEEE80211_CRC_LEN); 3236 3237 NET_EPOCH_ENTER(et); 3238 if (ni != NULL) { 3239 type = ieee80211_input_mimo(ni, m); 3240 ieee80211_free_node(ni); 3241 } else { 3242 type = ieee80211_input_mimo_all(ic, m); 3243 } 3244 NET_EPOCH_EXIT(et); 3245 3246 if (debug_80211 & D80211_TRACE_RX) 3247 printf("TRACE %s: handled frame type %#0x\n", __func__, type); 3248 3249 IMPROVE(); 3250 3251 err: 3252 /* The skb is ours so we can free it :-) */ 3253 kfree_skb(skb); 3254 } 3255 3256 uint8_t 3257 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr) 3258 { 3259 const struct ieee80211_frame *wh; 3260 3261 wh = (const struct ieee80211_frame *)hdr; 3262 return (ieee80211_gettid(wh)); 3263 } 3264 3265 struct wiphy * 3266 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 3267 { 3268 struct lkpi_wiphy *lwiphy; 3269 3270 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 3271 if (lwiphy == NULL) 3272 return (NULL); 3273 lwiphy->ops = ops; 3274 3275 /* XXX TODO */ 3276 return (LWIPHY_TO_WIPHY(lwiphy)); 3277 } 3278 3279 void 3280 linuxkpi_wiphy_free(struct wiphy *wiphy) 3281 { 3282 struct lkpi_wiphy *lwiphy; 3283 3284 if (wiphy == NULL) 3285 return; 3286 3287 lwiphy = WIPHY_TO_LWIPHY(wiphy); 3288 kfree(lwiphy); 3289 } 3290 3291 uint32_t 3292 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 3293 enum nl80211_band band) 3294 { 3295 3296 switch (band) { 3297 case NL80211_BAND_2GHZ: 3298 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 3299 break; 3300 case NL80211_BAND_5GHZ: 3301 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 3302 break; 3303 default: 3304 /* XXX abort, retry, error, panic? */ 3305 break; 3306 } 3307 3308 return (0); 3309 } 3310 3311 uint32_t 3312 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 3313 { 3314 3315 return (ieee80211_mhz2ieee(freq, 0)); 3316 } 3317 3318 static struct lkpi_sta * 3319 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 3320 { 3321 struct lkpi_sta *lsta, *temp; 3322 3323 LKPI_80211_LVIF_LOCK(lvif); 3324 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 3325 if (lsta->ni == ni) { 3326 LKPI_80211_LVIF_UNLOCK(lvif); 3327 return (lsta); 3328 } 3329 } 3330 LKPI_80211_LVIF_UNLOCK(lvif); 3331 3332 return (NULL); 3333 } 3334 3335 struct ieee80211_sta * 3336 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 3337 { 3338 struct lkpi_vif *lvif; 3339 struct lkpi_sta *lsta, *temp; 3340 struct ieee80211_sta *sta; 3341 3342 lvif = VIF_TO_LVIF(vif); 3343 3344 LKPI_80211_LVIF_LOCK(lvif); 3345 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 3346 sta = LSTA_TO_STA(lsta); 3347 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 3348 LKPI_80211_LVIF_UNLOCK(lvif); 3349 return (sta); 3350 } 3351 } 3352 LKPI_80211_LVIF_UNLOCK(lvif); 3353 return (NULL); 3354 } 3355 3356 struct ieee80211_sta * 3357 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, uint8_t *addr, 3358 uint8_t *ourvifaddr) 3359 { 3360 struct lkpi_hw *lhw; 3361 struct lkpi_vif *lvif; 3362 struct lkpi_sta *lsta; 3363 struct ieee80211_vif *vif; 3364 struct ieee80211_sta *sta; 3365 3366 lhw = wiphy_priv(hw->wiphy); 3367 sta = NULL; 3368 3369 LKPI_80211_LHW_LOCK(lhw); 3370 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3371 3372 /* XXX-BZ check our address from the vif. */ 3373 3374 vif = LVIF_TO_VIF(lvif); 3375 if (ourvifaddr != NULL && 3376 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 3377 continue; 3378 sta = linuxkpi_ieee80211_find_sta(vif, addr); 3379 if (sta != NULL) 3380 break; 3381 } 3382 LKPI_80211_LHW_UNLOCK(lhw); 3383 3384 if (sta != NULL) { 3385 lsta = STA_TO_LSTA(sta); 3386 if (!lsta->added_to_drv) 3387 return (NULL); 3388 } 3389 3390 return (sta); 3391 } 3392 3393 struct sk_buff * 3394 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 3395 struct ieee80211_txq *txq) 3396 { 3397 struct lkpi_txq *ltxq; 3398 struct sk_buff *skb; 3399 3400 ltxq = TXQ_TO_LTXQ(txq); 3401 ltxq->seen_dequeue = true; 3402 3403 skb = skb_dequeue(<xq->skbq); 3404 3405 return (skb); 3406 } 3407 3408 void 3409 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 3410 uint64_t *frame_cnt, uint64_t *byte_cnt) 3411 { 3412 struct lkpi_txq *ltxq; 3413 struct sk_buff *skb; 3414 uint64_t fc, bc; 3415 3416 ltxq = TXQ_TO_LTXQ(txq); 3417 3418 fc = bc = 0; 3419 skb_queue_walk(<xq->skbq, skb) { 3420 fc++; 3421 bc += skb->len; 3422 } 3423 if (frame_cnt) 3424 *frame_cnt = fc; 3425 if (byte_cnt) 3426 *byte_cnt = bc; 3427 3428 /* Validate that this is doing the correct thing. */ 3429 /* Should we keep track on en/dequeue? */ 3430 IMPROVE(); 3431 } 3432 3433 /* 3434 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 3435 * The latter tries to derive the success status from the info flags 3436 * passed back from the driver. rawx_mit() saves the ni on the m and the 3437 * m on the skb for us to be able to give feedback to net80211. 3438 */ 3439 void 3440 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 3441 int status) 3442 { 3443 struct ieee80211_node *ni; 3444 struct mbuf *m; 3445 3446 m = skb->m; 3447 skb->m = NULL; 3448 3449 if (m != NULL) { 3450 ni = m->m_pkthdr.PH_loc.ptr; 3451 /* Status: 0 is ok, != 0 is error. */ 3452 ieee80211_tx_complete(ni, m, status); 3453 /* ni & mbuf were consumed. */ 3454 } 3455 3456 kfree_skb(skb); 3457 } 3458 3459 /* 3460 * This is an internal bandaid for the moment for the way we glue 3461 * skbs and mbufs together for TX. Once we have skbs backed by 3462 * mbufs this should go away. 3463 * This is a public function but kept on the private KPI (lkpi_) 3464 * and is not exposed by a header file. 3465 */ 3466 static void 3467 lkpi_ieee80211_free_skb_mbuf(void *p) 3468 { 3469 struct ieee80211_node *ni; 3470 struct mbuf *m; 3471 3472 if (p == NULL) 3473 return; 3474 3475 m = (struct mbuf *)p; 3476 M_ASSERTPKTHDR(m); 3477 3478 ni = m->m_pkthdr.PH_loc.ptr; 3479 m->m_pkthdr.PH_loc.ptr = NULL; 3480 if (ni != NULL) 3481 ieee80211_free_node(ni); 3482 m_freem(m); 3483 } 3484 3485 void 3486 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 3487 struct delayed_work *w, int delay) 3488 { 3489 struct lkpi_hw *lhw; 3490 3491 /* Need to make sure hw is in a stable (non-suspended) state. */ 3492 IMPROVE(); 3493 3494 lhw = HW_TO_LHW(hw); 3495 queue_delayed_work(lhw->workq, w, delay); 3496 } 3497 3498 void 3499 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 3500 struct work_struct *w) 3501 { 3502 struct lkpi_hw *lhw; 3503 3504 /* Need to make sure hw is in a stable (non-suspended) state. */ 3505 IMPROVE(); 3506 3507 lhw = HW_TO_LHW(hw); 3508 queue_work(lhw->workq, w); 3509 } 3510 3511 struct sk_buff * 3512 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 3513 struct ieee80211_vif *vif) 3514 { 3515 struct lkpi_vif *lvif; 3516 struct ieee80211vap *vap; 3517 struct sk_buff *skb; 3518 struct ieee80211_frame_pspoll *psp; 3519 uint16_t v; 3520 3521 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 3522 if (skb == NULL) 3523 return (NULL); 3524 3525 skb_reserve(skb, hw->extra_tx_headroom); 3526 3527 lvif = VIF_TO_LVIF(vif); 3528 vap = LVIF_TO_VAP(lvif); 3529 3530 psp = skb_put_zero(skb, sizeof(*psp)); 3531 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 3532 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 3533 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 3534 memcpy(&psp->i_aid, &v, sizeof(v)); 3535 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 3536 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 3537 3538 return (skb); 3539 } 3540 3541 struct sk_buff * 3542 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 3543 struct ieee80211_vif *vif, bool qos) 3544 { 3545 struct lkpi_vif *lvif; 3546 struct ieee80211vap *vap; 3547 struct sk_buff *skb; 3548 struct ieee80211_frame *nullf; 3549 3550 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 3551 if (skb == NULL) 3552 return (NULL); 3553 3554 skb_reserve(skb, hw->extra_tx_headroom); 3555 3556 lvif = VIF_TO_LVIF(vif); 3557 vap = LVIF_TO_VAP(lvif); 3558 3559 nullf = skb_put_zero(skb, sizeof(*nullf)); 3560 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 3561 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 3562 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 3563 3564 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 3565 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 3566 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 3567 3568 return (skb); 3569 } 3570 3571 struct wireless_dev * 3572 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 3573 { 3574 struct lkpi_vif *lvif; 3575 3576 lvif = VIF_TO_LVIF(vif); 3577 return (&lvif->wdev); 3578 } 3579 3580 void 3581 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 3582 { 3583 struct lkpi_vif *lvif; 3584 struct ieee80211vap *vap; 3585 enum ieee80211_state nstate; 3586 int arg; 3587 3588 lvif = VIF_TO_LVIF(vif); 3589 vap = LVIF_TO_VAP(lvif); 3590 3591 /* 3592 * Go to scan; otherwise we need to elaborately check state and 3593 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 3594 * Let the statemachine handle all neccessary changes. 3595 */ 3596 nstate = IEEE80211_S_SCAN; 3597 arg = 0; 3598 3599 if (debug_80211 & D80211_TRACE) 3600 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 3601 ieee80211_new_state(vap, nstate, arg); 3602 } 3603 3604 MODULE_VERSION(linuxkpi_wlan, 1); 3605 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 3606 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 3607