1 /*- 2 * Copyright (c) 2020-2022 The FreeBSD Foundation 3 * Copyright (c) 2020-2022 Bjoern A. Zeeb 4 * 5 * This software was developed by Björn Zeeb under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Public functions are called linuxkpi_*(). 32 * Internal (static) functions are called lkpi_*(). 33 * 34 * The internal structures holding metadata over public structures are also 35 * called lkpi_xxx (usually with a member at the end called xxx). 36 * Note: we do not replicate the structure names but the general variable names 37 * for these (e.g., struct hw -> struct lkpi_hw, struct sta -> struct lkpi_sta). 38 * There are macros to access one from the other. 39 * We call the internal versions lxxx (e.g., hw -> lhw, sta -> lsta). 40 */ 41 42 #include <sys/cdefs.h> 43 __FBSDID("$FreeBSD$"); 44 45 #include <sys/param.h> 46 #include <sys/types.h> 47 #include <sys/kernel.h> 48 #include <sys/errno.h> 49 #include <sys/malloc.h> 50 #include <sys/module.h> 51 #include <sys/mutex.h> 52 #include <sys/socket.h> 53 #include <sys/sysctl.h> 54 #include <sys/queue.h> 55 #include <sys/taskqueue.h> 56 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", "LinuxKPI 80211 compat"); 74 75 /* -------------------------------------------------------------------------- */ 76 77 /* Keep public for as long as header files are using it too. */ 78 int linuxkpi_debug_80211; 79 80 #ifdef LINUXKPI_DEBUG_80211 81 SYSCTL_DECL(_compat_linuxkpi); 82 SYSCTL_NODE(_compat_linuxkpi, OID_AUTO, 80211, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 83 "LinuxKPI 802.11 compatibility layer"); 84 85 SYSCTL_INT(_compat_linuxkpi_80211, OID_AUTO, debug, CTLFLAG_RWTUN, 86 &linuxkpi_debug_80211, 0, "LinuxKPI 802.11 debug level"); 87 88 #ifndef D80211_TODO 89 #define D80211_TODO 0x1 90 #endif 91 #ifndef D80211_IMPROVE 92 #define D80211_IMPROVE 0x2 93 #endif 94 #define D80211_TRACE 0x10 95 #define D80211_TRACEOK 0x20 96 #define D80211_TRACE_TX 0x100 97 #define D80211_TRACE_TX_DUMP 0x200 98 #define D80211_TRACE_RX 0x1000 99 #define D80211_TRACE_RX_DUMP 0x2000 100 #define D80211_TRACE_RX_BEACONS 0x4000 101 #define D80211_TRACEX (D80211_TRACE_TX|D80211_TRACE_RX) 102 #define D80211_TRACEX_DUMP (D80211_TRACE_TX_DUMP|D80211_TRACE_RX_DUMP) 103 #define D80211_TRACE_STA 0x10000 104 #define UNIMPLEMENTED if (linuxkpi_debug_80211 & D80211_TODO) \ 105 printf("XXX-TODO %s:%d: UNIMPLEMENTED\n", __func__, __LINE__) 106 #define TRACEOK() if (linuxkpi_debug_80211 & D80211_TRACEOK) \ 107 printf("XXX-TODO %s:%d: TRACEPOINT\n", __func__, __LINE__) 108 #else 109 #define UNIMPLEMENTED do { } while (0) 110 #define TRACEOK() do { } while (0) 111 #endif 112 113 /* #define PREP_TX_INFO_DURATION (IEEE80211_TRANS_WAIT * 1000) */ 114 #ifndef PREP_TX_INFO_DURATION 115 #define PREP_TX_INFO_DURATION 0 /* Let the driver do its thing. */ 116 #endif 117 118 /* This is DSAP | SSAP | CTRL | ProtoID/OrgCode{3}. */ 119 const uint8_t rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; 120 121 const uint8_t tid_to_mac80211_ac[] = { 122 IEEE80211_AC_BE, 123 IEEE80211_AC_BK, 124 IEEE80211_AC_BK, 125 IEEE80211_AC_BE, 126 IEEE80211_AC_VI, 127 IEEE80211_AC_VI, 128 IEEE80211_AC_VO, 129 IEEE80211_AC_VO, 130 #if 0 131 IEEE80211_AC_VO, /* We treat MGMT as TID 8, which is set as AC_VO */ 132 #endif 133 }; 134 135 const struct cfg80211_ops linuxkpi_mac80211cfgops = { 136 /* 137 * XXX TODO need a "glue layer" to link cfg80211 ops to 138 * mac80211 and to the driver or net80211. 139 * Can we pass some on 1:1? Need to compare the (*f)(). 140 */ 141 }; 142 143 static struct lkpi_sta *lkpi_find_lsta_by_ni(struct lkpi_vif *, 144 struct ieee80211_node *); 145 static void lkpi_80211_txq_task(void *, int); 146 static void lkpi_ieee80211_free_skb_mbuf(void *); 147 148 static void 149 lkpi_lsta_dump(struct lkpi_sta *lsta, struct ieee80211_node *ni, 150 const char *_f, int _l) 151 { 152 153 #ifdef LINUXKPI_DEBUG_80211 154 if ((linuxkpi_debug_80211 & D80211_TRACE_STA) == 0) 155 return; 156 if (lsta == NULL) 157 return; 158 159 printf("%s:%d lsta %p ni %p sta %p\n", 160 _f, _l, lsta, ni, &lsta->sta); 161 if (ni != NULL) 162 ieee80211_dump_node(NULL, ni); 163 printf("\ttxq_task txq len %d mtx\n", mbufq_len(&lsta->txq)); 164 printf("\tkc %p state %d added_to_drv %d in_mgd %d\n", 165 lsta->kc, lsta->state, lsta->added_to_drv, lsta->in_mgd); 166 #endif 167 } 168 169 static void 170 lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) 171 { 172 struct ieee80211_node *ni; 173 174 ni = lsta->ni; 175 176 LKPI_80211_LVIF_LOCK(lvif); 177 TAILQ_REMOVE(&lvif->lsta_head, lsta, lsta_entry); 178 LKPI_80211_LVIF_UNLOCK(lvif); 179 180 lsta->ni = NULL; 181 ni->ni_drv_data = NULL; 182 ieee80211_free_node(ni); 183 184 IMPROVE("free lsta here? We won't have a pointer to it from the node anymore."); 185 } 186 187 static struct lkpi_sta * 188 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 189 struct ieee80211_hw *hw, struct ieee80211_node *ni) 190 { 191 struct lkpi_sta *lsta; 192 struct lkpi_vif *lvif; 193 struct ieee80211_vif *vif; 194 struct ieee80211_sta *sta; 195 int tid; 196 197 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 198 M_NOWAIT | M_ZERO); 199 if (lsta == NULL) 200 return (NULL); 201 202 lsta->added_to_drv = false; 203 lsta->state = IEEE80211_STA_NOTEXIST; 204 #if 0 205 /* 206 * This needs to be done in node_init() as ieee80211_alloc_node() 207 * will initialise the refcount after us. 208 */ 209 lsta->ni = ieee80211_ref_node(ni); 210 #endif 211 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 212 ni->ni_drv_data = lsta; 213 214 lvif = VAP_TO_LVIF(vap); 215 vif = LVIF_TO_VIF(lvif); 216 sta = LSTA_TO_STA(lsta); 217 218 IEEE80211_ADDR_COPY(sta->addr, mac); 219 for (tid = 0; tid < nitems(sta->txq); tid++) { 220 struct lkpi_txq *ltxq; 221 222 /* 223 * We are neither limiting ourselves to hw.queues here, 224 * nor do we check if driver wants IEEE80211_NUM_TIDS queue. 225 */ 226 227 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 228 M_LKPI80211, M_NOWAIT | M_ZERO); 229 if (ltxq == NULL) 230 goto cleanup; 231 ltxq->seen_dequeue = false; 232 skb_queue_head_init(<xq->skbq); 233 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 234 if (tid == IEEE80211_NUM_TIDS) { 235 IMPROVE(); 236 ltxq->txq.ac = IEEE80211_AC_VO; 237 } else { 238 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 239 } 240 ltxq->txq.tid = tid; 241 ltxq->txq.sta = sta; 242 ltxq->txq.vif = vif; 243 sta->txq[tid] = <xq->txq; 244 } 245 246 /* Deferred TX path. */ 247 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 248 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 249 mbufq_init(&lsta->txq, IFQ_MAXLEN); 250 251 return (lsta); 252 253 cleanup: 254 for (; tid >= 0; tid--) 255 free(sta->txq[tid], M_LKPI80211); 256 free(lsta, M_LKPI80211); 257 return (NULL); 258 } 259 260 static enum nl80211_band 261 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 262 { 263 264 if (IEEE80211_IS_CHAN_2GHZ(c)) 265 return (NL80211_BAND_2GHZ); 266 else if (IEEE80211_IS_CHAN_5GHZ(c)) 267 return (NL80211_BAND_5GHZ); 268 #ifdef __notyet__ 269 else if () 270 return (NL80211_BAND_6GHZ); 271 else if () 272 return (NL80211_BAND_60GHZ); 273 else if (IEEE80211_IS_CHAN_GSM(c)) 274 return (NL80211_BAND_XXX); 275 #endif 276 else 277 panic("%s: unsupported band. c %p flags %#x\n", 278 __func__, c, c->ic_flags); 279 } 280 281 static uint32_t 282 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 283 { 284 285 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 286 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 287 switch (band) { 288 case NL80211_BAND_2GHZ: 289 return (IEEE80211_CHAN_2GHZ); 290 break; 291 case NL80211_BAND_5GHZ: 292 return (IEEE80211_CHAN_5GHZ); 293 break; 294 case NL80211_BAND_60GHZ: 295 break; 296 case NL80211_BAND_6GHZ: 297 break; 298 default: 299 panic("%s: unsupported band %u\n", __func__, band); 300 break; 301 } 302 303 IMPROVE(); 304 return (0x00); 305 } 306 307 static enum ieee80211_ac_numbers 308 lkpi_ac_net_to_l80211(int ac) 309 { 310 311 switch (ac) { 312 case WME_AC_VO: 313 return (IEEE80211_AC_VO); 314 case WME_AC_VI: 315 return (IEEE80211_AC_VI); 316 case WME_AC_BE: 317 return (IEEE80211_AC_BE); 318 case WME_AC_BK: 319 return (IEEE80211_AC_BK); 320 default: 321 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 322 return (IEEE80211_AC_BE); 323 } 324 } 325 326 static enum nl80211_iftype 327 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 328 { 329 330 switch (opmode) { 331 case IEEE80211_M_IBSS: 332 return (NL80211_IFTYPE_ADHOC); 333 break; 334 case IEEE80211_M_STA: 335 return (NL80211_IFTYPE_STATION); 336 break; 337 case IEEE80211_M_WDS: 338 return (NL80211_IFTYPE_WDS); 339 break; 340 case IEEE80211_M_HOSTAP: 341 return (NL80211_IFTYPE_AP); 342 break; 343 case IEEE80211_M_MONITOR: 344 return (NL80211_IFTYPE_MONITOR); 345 break; 346 case IEEE80211_M_MBSS: 347 return (NL80211_IFTYPE_MESH_POINT); 348 break; 349 case IEEE80211_M_AHDEMO: 350 /* FALLTHROUGH */ 351 default: 352 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 353 /* FALLTHROUGH */ 354 } 355 return (NL80211_IFTYPE_UNSPECIFIED); 356 } 357 358 #ifdef __notyet__ 359 static uint32_t 360 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 361 { 362 363 switch (wlan_cipher_suite) { 364 case WLAN_CIPHER_SUITE_WEP40: 365 return (IEEE80211_CRYPTO_WEP); 366 case WLAN_CIPHER_SUITE_TKIP: 367 return (IEEE80211_CRYPTO_TKIP); 368 case WLAN_CIPHER_SUITE_CCMP: 369 return (IEEE80211_CIPHER_AES_CCM); 370 case WLAN_CIPHER_SUITE_WEP104: 371 return (IEEE80211_CRYPTO_WEP); 372 case WLAN_CIPHER_SUITE_AES_CMAC: 373 case WLAN_CIPHER_SUITE_GCMP: 374 case WLAN_CIPHER_SUITE_GCMP_256: 375 case WLAN_CIPHER_SUITE_CCMP_256: 376 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 377 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 378 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 379 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 380 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 381 break; 382 default: 383 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 384 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 385 } 386 387 return (0); 388 } 389 #endif 390 391 #ifdef TRY_HW_CRYPTO 392 static uint32_t 393 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 394 { 395 396 switch (cipher) { 397 case IEEE80211_CIPHER_TKIP: 398 return (WLAN_CIPHER_SUITE_TKIP); 399 case IEEE80211_CIPHER_AES_CCM: 400 return (WLAN_CIPHER_SUITE_CCMP); 401 case IEEE80211_CIPHER_WEP: 402 if (keylen < 8) 403 return (WLAN_CIPHER_SUITE_WEP40); 404 else 405 return (WLAN_CIPHER_SUITE_WEP104); 406 break; 407 case IEEE80211_CIPHER_AES_OCB: 408 case IEEE80211_CIPHER_TKIPMIC: 409 case IEEE80211_CIPHER_CKIP: 410 case IEEE80211_CIPHER_NONE: 411 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 412 break; 413 default: 414 printf("%s: unknown cipher %#010x\n", __func__, cipher); 415 }; 416 return (0); 417 } 418 #endif 419 420 #ifdef __notyet__ 421 static enum ieee80211_sta_state 422 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 423 { 424 425 /* 426 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 427 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 428 */ 429 switch (state) { 430 case IEEE80211_S_INIT: 431 return (IEEE80211_STA_NOTEXIST); 432 case IEEE80211_S_SCAN: 433 return (IEEE80211_STA_NONE); 434 case IEEE80211_S_AUTH: 435 return (IEEE80211_STA_AUTH); 436 case IEEE80211_S_ASSOC: 437 return (IEEE80211_STA_ASSOC); 438 case IEEE80211_S_RUN: 439 return (IEEE80211_STA_AUTHORIZED); 440 case IEEE80211_S_CAC: 441 case IEEE80211_S_CSA: 442 case IEEE80211_S_SLEEP: 443 default: 444 UNIMPLEMENTED; 445 }; 446 447 return (IEEE80211_STA_NOTEXIST); 448 } 449 #endif 450 451 static struct linuxkpi_ieee80211_channel * 452 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 453 struct ieee80211_channel *c) 454 { 455 struct ieee80211_hw *hw; 456 struct linuxkpi_ieee80211_channel *channels; 457 enum nl80211_band band; 458 int i, nchans; 459 460 hw = LHW_TO_HW(lhw); 461 band = lkpi_net80211_chan_to_nl80211_band(c); 462 if (hw->wiphy->bands[band] == NULL) 463 return (NULL); 464 465 nchans = hw->wiphy->bands[band]->n_channels; 466 if (nchans <= 0) 467 return (NULL); 468 469 channels = hw->wiphy->bands[band]->channels; 470 for (i = 0; i < nchans; i++) { 471 if (channels[i].hw_value == c->ic_ieee) 472 return (&channels[i]); 473 } 474 475 return (NULL); 476 } 477 478 static struct linuxkpi_ieee80211_channel * 479 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 480 { 481 struct linuxkpi_ieee80211_channel *chan; 482 struct ieee80211_channel *c; 483 struct lkpi_hw *lhw; 484 485 chan = NULL; 486 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 487 c = ni->ni_chan; 488 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 489 c = ic->ic_bsschan; 490 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 491 c = ic->ic_curchan; 492 else 493 c = NULL; 494 495 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 496 lhw = ic->ic_softc; 497 chan = lkpi_find_lkpi80211_chan(lhw, c); 498 } 499 500 return (chan); 501 } 502 503 struct linuxkpi_ieee80211_channel * 504 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 505 { 506 enum nl80211_band band; 507 508 for (band = 0; band < NUM_NL80211_BANDS; band++) { 509 struct ieee80211_supported_band *supband; 510 struct linuxkpi_ieee80211_channel *channels; 511 int i; 512 513 supband = wiphy->bands[band]; 514 if (supband == NULL || supband->n_channels == 0) 515 continue; 516 517 channels = supband->channels; 518 for (i = 0; i < supband->n_channels; i++) { 519 if (channels[i].center_freq == freq) 520 return (&channels[i]); 521 } 522 } 523 524 return (NULL); 525 } 526 527 #ifdef TRY_HW_CRYPTO 528 static int 529 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 530 enum set_key_cmd cmd) 531 { 532 struct ieee80211com *ic; 533 struct lkpi_hw *lhw; 534 struct ieee80211_hw *hw; 535 struct lkpi_vif *lvif; 536 struct ieee80211_vif *vif; 537 struct ieee80211_sta *sta; 538 struct ieee80211_node *ni; 539 struct ieee80211_key_conf *kc; 540 int error; 541 542 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 543 544 ic = vap->iv_ic; 545 lhw = ic->ic_softc; 546 hw = LHW_TO_HW(lhw); 547 lvif = VAP_TO_LVIF(vap); 548 vif = LVIF_TO_VIF(lvif); 549 550 memset(&kc, 0, sizeof(kc)); 551 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 552 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 553 k->wk_cipher->ic_cipher, k->wk_keylen); 554 kc->keyidx = k->wk_keyix; 555 #if 0 556 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 557 #endif 558 atomic64_set(&kc->tx_pn, k->wk_keytsc); 559 kc->keylen = k->wk_keylen; 560 memcpy(kc->key, k->wk_key, k->wk_keylen); 561 562 switch (kc->cipher) { 563 case WLAN_CIPHER_SUITE_CCMP: 564 kc->iv_len = k->wk_cipher->ic_header; 565 kc->icv_len = k->wk_cipher->ic_trailer; 566 break; 567 case WLAN_CIPHER_SUITE_TKIP: 568 default: 569 IMPROVE(); 570 return (0); 571 }; 572 573 ni = vap->iv_bss; 574 sta = ieee80211_find_sta(vif, ni->ni_bssid); 575 if (sta != NULL) { 576 struct lkpi_sta *lsta; 577 578 lsta = STA_TO_LSTA(sta); 579 lsta->kc = kc; 580 } 581 582 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 583 if (error != 0) { 584 /* XXX-BZ leaking kc currently */ 585 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 586 return (0); 587 } else { 588 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 589 "flags %#10x\n", __func__, 590 kc->keyidx, kc->hw_key_idx, kc->flags); 591 return (1); 592 } 593 } 594 595 static int 596 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 597 { 598 599 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 600 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 601 } 602 static int 603 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 604 { 605 606 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 607 } 608 #endif 609 610 static u_int 611 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 612 { 613 struct netdev_hw_addr_list *mc_list; 614 struct netdev_hw_addr *addr; 615 616 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 617 __func__, arg, sdl, cnt)); 618 619 mc_list = arg; 620 /* If it is on the list already skip it. */ 621 netdev_hw_addr_list_for_each(addr, mc_list) { 622 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 623 return (0); 624 } 625 626 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 627 if (addr == NULL) 628 return (0); 629 630 INIT_LIST_HEAD(&addr->addr_list); 631 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 632 /* XXX this should be a netdev function? */ 633 list_add(&addr->addr_list, &mc_list->addr_list); 634 mc_list->count++; 635 636 #ifdef LINUXKPI_DEBUG_80211 637 if (linuxkpi_debug_80211 & D80211_TRACE) 638 printf("%s:%d: mc_list count %d: added %6D\n", 639 __func__, __LINE__, mc_list->count, addr->addr, ":"); 640 #endif 641 642 return (1); 643 } 644 645 static void 646 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 647 { 648 struct lkpi_hw *lhw; 649 struct ieee80211_hw *hw; 650 struct netdev_hw_addr_list mc_list; 651 struct list_head *le, *next; 652 struct netdev_hw_addr *addr; 653 struct ieee80211vap *vap; 654 u64 mc; 655 unsigned int changed_flags, total_flags; 656 657 lhw = ic->ic_softc; 658 659 if (lhw->ops->prepare_multicast == NULL || 660 lhw->ops->configure_filter == NULL) 661 return; 662 663 if (!lhw->update_mc && !force) 664 return; 665 666 changed_flags = total_flags = 0; 667 mc_list.count = 0; 668 INIT_LIST_HEAD(&mc_list.addr_list); 669 if (ic->ic_allmulti == 0) { 670 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 671 if_foreach_llmaddr(vap->iv_ifp, 672 lkpi_ic_update_mcast_copy, &mc_list); 673 } else { 674 changed_flags |= FIF_ALLMULTI; 675 } 676 677 hw = LHW_TO_HW(lhw); 678 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 679 /* 680 * XXX-BZ make sure to get this sorted what is a change, 681 * what gets all set; what was already set? 682 */ 683 total_flags = changed_flags; 684 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 685 686 #ifdef LINUXKPI_DEBUG_80211 687 if (linuxkpi_debug_80211 & D80211_TRACE) 688 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 689 __func__, changed_flags, mc_list.count, total_flags); 690 #endif 691 692 if (mc_list.count != 0) { 693 list_for_each_safe(le, next, &mc_list.addr_list) { 694 addr = list_entry(le, struct netdev_hw_addr, addr_list); 695 free(addr, M_LKPI80211); 696 mc_list.count--; 697 } 698 } 699 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 700 __func__, &mc_list, mc_list.count)); 701 } 702 703 static enum ieee80211_bss_changed 704 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 705 struct ieee80211vap *vap, const char *_f, int _l) 706 { 707 enum ieee80211_bss_changed bss_changed; 708 709 bss_changed = 0; 710 711 #ifdef LINUXKPI_DEBUG_80211 712 if (linuxkpi_debug_80211 & D80211_TRACE) 713 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 714 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 715 "sync_device_ts %u bss_changed %#08x\n", 716 __func__, __LINE__, _f, _l, 717 vif->bss_conf.assoc, vif->bss_conf.aid, 718 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 719 vif->bss_conf.sync_dtim_count, 720 (uintmax_t)vif->bss_conf.sync_tsf, 721 vif->bss_conf.sync_device_ts, 722 bss_changed); 723 #endif 724 725 if (vif->bss_conf.beacon_int != ni->ni_intval) { 726 vif->bss_conf.beacon_int = ni->ni_intval; 727 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 728 if (vif->bss_conf.beacon_int < 16) 729 vif->bss_conf.beacon_int = 16; 730 bss_changed |= BSS_CHANGED_BEACON_INT; 731 } 732 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 733 vap->iv_dtim_period > 0) { 734 vif->bss_conf.dtim_period = vap->iv_dtim_period; 735 bss_changed |= BSS_CHANGED_BEACON_INFO; 736 } 737 738 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 739 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 740 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 741 742 #ifdef LINUXKPI_DEBUG_80211 743 if (linuxkpi_debug_80211 & D80211_TRACE) 744 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 745 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 746 "sync_device_ts %u bss_changed %#08x\n", 747 __func__, __LINE__, _f, _l, 748 vif->bss_conf.assoc, vif->bss_conf.aid, 749 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 750 vif->bss_conf.sync_dtim_count, 751 (uintmax_t)vif->bss_conf.sync_tsf, 752 vif->bss_conf.sync_device_ts, 753 bss_changed); 754 #endif 755 756 return (bss_changed); 757 } 758 759 static void 760 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 761 { 762 struct ieee80211_hw *hw; 763 int error; 764 765 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) 766 return; 767 768 hw = LHW_TO_HW(lhw); 769 770 IEEE80211_UNLOCK(lhw->ic); 771 LKPI_80211_LHW_LOCK(lhw); 772 /* Need to cancel the scan. */ 773 lkpi_80211_mo_cancel_hw_scan(hw, vif); 774 775 /* Need to make sure we see ieee80211_scan_completed. */ 776 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 777 LKPI_80211_LHW_UNLOCK(lhw); 778 IEEE80211_LOCK(lhw->ic); 779 780 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) 781 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 782 __func__, error, lhw, vif); 783 } 784 785 static void 786 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 787 { 788 struct lkpi_hw *lhw; 789 int error; 790 bool old; 791 792 old = hw->conf.flags & IEEE80211_CONF_IDLE; 793 if (old == new) 794 return; 795 796 hw->conf.flags ^= IEEE80211_CONF_IDLE; 797 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 798 if (error != 0 && error != EOPNOTSUPP) { 799 lhw = HW_TO_LHW(hw); 800 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 801 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 802 } 803 } 804 805 static void 806 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 807 struct lkpi_hw *lhw) 808 { 809 sta->aid = 0; 810 if (vif->bss_conf.assoc) { 811 struct ieee80211_hw *hw; 812 enum ieee80211_bss_changed changed; 813 814 lhw->update_mc = true; 815 lkpi_update_mcast_filter(lhw->ic, true); 816 817 changed = 0; 818 vif->bss_conf.assoc = false; 819 vif->bss_conf.aid = 0; 820 changed |= BSS_CHANGED_ASSOC; 821 /* 822 * This will remove the sta from firmware for iwlwifi. 823 * So confusing that they use state and flags and ... ^%$%#%$^. 824 */ 825 IMPROVE(); 826 hw = LHW_TO_HW(lhw); 827 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 828 changed); 829 830 lkpi_hw_conf_idle(hw, true); 831 } 832 } 833 834 static void 835 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 836 bool dequeue_seen, bool no_emptyq) 837 { 838 struct lkpi_txq *ltxq; 839 int tid; 840 841 /* Wake up all queues to know they are allocated in the driver. */ 842 for (tid = 0; tid < nitems(sta->txq); tid++) { 843 844 if (tid == IEEE80211_NUM_TIDS) { 845 IMPROVE("station specific?"); 846 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 847 continue; 848 } else if (tid >= hw->queues) 849 continue; 850 851 if (sta->txq[tid] == NULL) 852 continue; 853 854 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 855 if (dequeue_seen && !ltxq->seen_dequeue) 856 continue; 857 858 if (no_emptyq && skb_queue_empty(<xq->skbq)) 859 continue; 860 861 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 862 } 863 } 864 865 /* -------------------------------------------------------------------------- */ 866 867 static int 868 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 869 { 870 871 return (0); 872 } 873 874 /* lkpi_iv_newstate() handles the stop scan case generally. */ 875 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 876 877 static int 878 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 879 { 880 struct linuxkpi_ieee80211_channel *chan; 881 struct ieee80211_chanctx_conf *conf; 882 struct lkpi_hw *lhw; 883 struct ieee80211_hw *hw; 884 struct lkpi_vif *lvif; 885 struct ieee80211_vif *vif; 886 struct ieee80211_node *ni; 887 struct lkpi_sta *lsta; 888 struct ieee80211_sta *sta; 889 enum ieee80211_bss_changed bss_changed; 890 struct ieee80211_prep_tx_info prep_tx_info; 891 uint32_t changed; 892 int error; 893 894 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 895 if (chan == NULL) { 896 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 897 return (ESRCH); 898 } 899 900 lhw = vap->iv_ic->ic_softc; 901 hw = LHW_TO_HW(lhw); 902 lvif = VAP_TO_LVIF(vap); 903 vif = LVIF_TO_VIF(lvif); 904 905 ni = ieee80211_ref_node(vap->iv_bss); 906 907 IEEE80211_UNLOCK(vap->iv_ic); 908 909 /* Add chanctx (or if exists, change it). */ 910 if (vif->chanctx_conf != NULL) { 911 conf = vif->chanctx_conf; 912 IMPROVE("diff changes for changed, working on live copy, rcu"); 913 } else { 914 /* Keep separate alloc as in Linux this is rcu managed? */ 915 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 916 M_LKPI80211, M_WAITOK | M_ZERO); 917 } 918 919 conf->rx_chains_dynamic = 1; 920 conf->rx_chains_static = 1; 921 conf->radar_enabled = 922 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 923 conf->def.chan = chan; 924 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 925 conf->def.center_freq1 = chan->center_freq; 926 conf->def.center_freq2 = 0; 927 /* Responder ... */ 928 conf->min_def.chan = chan; 929 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 930 conf->min_def.center_freq1 = chan->center_freq; 931 conf->min_def.center_freq2 = 0; 932 IMPROVE("currently 20_NOHT only"); 933 934 error = 0; 935 if (vif->chanctx_conf != NULL) { 936 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 937 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 938 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 939 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 940 lkpi_80211_mo_change_chanctx(hw, conf, changed); 941 } else { 942 error = lkpi_80211_mo_add_chanctx(hw, conf); 943 if (error == 0 || error == EOPNOTSUPP) { 944 vif->bss_conf.chandef.chan = conf->def.chan; 945 vif->bss_conf.chandef.width = conf->def.width; 946 vif->bss_conf.chandef.center_freq1 = 947 conf->def.center_freq1; 948 vif->bss_conf.chandef.center_freq2 = 949 conf->def.center_freq2; 950 } else { 951 goto out; 952 } 953 /* Assign vif chanctx. */ 954 if (error == 0) 955 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 956 if (error == EOPNOTSUPP) 957 error = 0; 958 if (error != 0) { 959 lkpi_80211_mo_remove_chanctx(hw, conf); 960 free(conf, M_LKPI80211); 961 goto out; 962 } 963 } 964 IMPROVE("update radiotap chan fields too"); 965 966 /* Set bss info (bss_info_changed). */ 967 bss_changed = 0; 968 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, ni->ni_bssid); 969 bss_changed |= BSS_CHANGED_BSSID; 970 vif->bss_conf.txpower = ni->ni_txpower; 971 bss_changed |= BSS_CHANGED_TXPOWER; 972 vif->bss_conf.idle = false; 973 bss_changed |= BSS_CHANGED_IDLE; 974 975 /* Should almost assert it is this. */ 976 vif->bss_conf.assoc = false; 977 vif->bss_conf.aid = 0; 978 979 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 980 981 /* RATES */ 982 IMPROVE("bss info: not all needs to come now and rates are missing"); 983 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 984 985 /* 986 * This is a bandaid for now. If we went through (*iv_update_bss)() 987 * and then removed the lsta we end up here without a lsta and have 988 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 989 * would normally do. 990 * XXX-BZ I do not like this but currently we have no good way of 991 * intercepting the bss swap and state changes and packets going out 992 * workflow so live with this. It is a compat layer after all. 993 */ 994 if (ni->ni_drv_data == NULL) { 995 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 996 if (lsta == NULL) { 997 error = ENOMEM; 998 goto out; 999 } 1000 lsta->ni = ieee80211_ref_node(ni); 1001 LKPI_80211_LVIF_LOCK(lvif); 1002 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1003 LKPI_80211_LVIF_UNLOCK(lvif); 1004 } else { 1005 lsta = ni->ni_drv_data; 1006 } 1007 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1008 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1009 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1010 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1011 sta = LSTA_TO_STA(lsta); 1012 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1013 if (error != 0) { 1014 IMPROVE("do we need to undo the chan ctx?"); 1015 goto out; 1016 } 1017 #if 0 1018 lsta->added_to_drv = true; /* mo manages. */ 1019 #endif 1020 1021 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1022 1023 /* 1024 * Wakeup all queues now that sta is there so we have as much time to 1025 * possibly prepare the queue in the driver to be ready for the 1st 1026 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1027 * is no guarantee or way to check. 1028 * XXX-BZ and by now we know that this does not work on all drivers 1029 * for all queues. 1030 */ 1031 lkpi_wake_tx_queues(hw, sta, false, false); 1032 1033 { 1034 int i, count; 1035 1036 for (i = 3 * (hw->queues + 1); i > 0; i--) { 1037 struct lkpi_txq *ltxq; 1038 int tid; 1039 1040 count = 0; 1041 /* Wake up all queues to know they are allocated in the driver. */ 1042 for (tid = 0; tid < nitems(sta->txq); tid++) { 1043 1044 if (tid == IEEE80211_NUM_TIDS) { 1045 IMPROVE("station specific?"); 1046 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 1047 continue; 1048 } else if (tid >= hw->queues) 1049 continue; 1050 1051 if (sta->txq[tid] == NULL) 1052 continue; 1053 1054 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 1055 if (!ltxq->seen_dequeue) 1056 count++; 1057 } 1058 if (count == 0) 1059 break; 1060 #ifdef LINUXKPI_DEBUG_80211 1061 if (count > 0) 1062 ic_printf(vap->iv_ic, "%s: waiting for %d queues " 1063 "to be allocated by driver\n", __func__, count); 1064 #endif 1065 pause("lkpi80211txq", hz/10); 1066 } 1067 #ifdef LINUXKPI_DEBUG_80211 1068 if (count > 0) 1069 ic_printf(vap->iv_ic, "%s: %d queues still not " 1070 "allocated by driver\n", __func__, count); 1071 #endif 1072 } 1073 1074 /* Start mgd_prepare_tx. */ 1075 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1076 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1077 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1078 lsta->in_mgd = true; 1079 1080 /* 1081 * What is going to happen next: 1082 * - <twiddle> .. we should end up in "auth_to_assoc" 1083 * - event_callback 1084 * - update sta_state (NONE to AUTH) 1085 * - mgd_complete_tx 1086 * (ideally we'd do that on a callback for something else ...) 1087 */ 1088 1089 out: 1090 IEEE80211_LOCK(vap->iv_ic); 1091 if (ni != NULL) 1092 ieee80211_free_node(ni); 1093 return (error); 1094 } 1095 1096 static int 1097 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1098 { 1099 struct lkpi_hw *lhw; 1100 struct ieee80211_hw *hw; 1101 struct lkpi_vif *lvif; 1102 struct ieee80211_vif *vif; 1103 struct ieee80211_node *ni; 1104 struct lkpi_sta *lsta; 1105 struct ieee80211_sta *sta; 1106 struct ieee80211_prep_tx_info prep_tx_info; 1107 int error; 1108 1109 lhw = vap->iv_ic->ic_softc; 1110 hw = LHW_TO_HW(lhw); 1111 lvif = VAP_TO_LVIF(vap); 1112 vif = LVIF_TO_VIF(lvif); 1113 1114 /* Keep ni around. */ 1115 ni = ieee80211_ref_node(vap->iv_bss); 1116 lsta = ni->ni_drv_data; 1117 sta = LSTA_TO_STA(lsta); 1118 1119 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1120 1121 IEEE80211_UNLOCK(vap->iv_ic); 1122 1123 /* flush, drop. */ 1124 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1125 1126 /* Wake tx queues to get packet(s) out. */ 1127 lkpi_wake_tx_queues(hw, sta, true, true); 1128 1129 /* flush, no drop */ 1130 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1131 1132 /* End mgd_complete_tx. */ 1133 if (lsta->in_mgd) { 1134 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1135 prep_tx_info.success = false; 1136 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1137 lsta->in_mgd = false; 1138 } 1139 1140 /* sync_rx_queues */ 1141 lkpi_80211_mo_sync_rx_queues(hw); 1142 1143 /* sta_pre_rcu_remove */ 1144 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1145 1146 /* Take the station down. */ 1147 1148 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1149 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1150 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1151 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1152 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1153 if (error != 0) { 1154 IMPROVE("do we need to undo the chan ctx?"); 1155 goto out; 1156 } 1157 #if 0 1158 lsta->added_to_drv = false; /* mo manages. */ 1159 #endif 1160 1161 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1162 1163 lkpi_lsta_remove(lsta, lvif); 1164 1165 /* conf_tx */ 1166 1167 /* Take the chan ctx down. */ 1168 if (vif->chanctx_conf != NULL) { 1169 struct ieee80211_chanctx_conf *conf; 1170 1171 conf = vif->chanctx_conf; 1172 /* Remove vif context. */ 1173 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1174 /* NB: vif->chanctx_conf is NULL now. */ 1175 1176 /* Remove chan ctx. */ 1177 lkpi_80211_mo_remove_chanctx(hw, conf); 1178 free(conf, M_LKPI80211); 1179 } 1180 1181 out: 1182 IEEE80211_LOCK(vap->iv_ic); 1183 if (ni != NULL) 1184 ieee80211_free_node(ni); 1185 return (error); 1186 } 1187 1188 static int 1189 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1190 { 1191 int error; 1192 1193 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1194 if (error == 0) 1195 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1196 return (error); 1197 } 1198 1199 static int 1200 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1201 { 1202 struct lkpi_hw *lhw; 1203 struct ieee80211_hw *hw; 1204 struct lkpi_vif *lvif; 1205 struct ieee80211_vif *vif; 1206 struct ieee80211_node *ni; 1207 struct lkpi_sta *lsta; 1208 struct ieee80211_sta *sta; 1209 struct ieee80211_prep_tx_info prep_tx_info; 1210 int error; 1211 1212 lhw = vap->iv_ic->ic_softc; 1213 hw = LHW_TO_HW(lhw); 1214 lvif = VAP_TO_LVIF(vap); 1215 vif = LVIF_TO_VIF(lvif); 1216 1217 IEEE80211_UNLOCK(vap->iv_ic); 1218 ni = NULL; 1219 1220 /* Finish auth. */ 1221 IMPROVE("event callback"); 1222 1223 /* Update sta_state (NONE to AUTH). */ 1224 ni = ieee80211_ref_node(vap->iv_bss); 1225 lsta = ni->ni_drv_data; 1226 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1227 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1228 "NONE: %#x\n", __func__, lsta, lsta->state)); 1229 sta = LSTA_TO_STA(lsta); 1230 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1231 if (error != 0) 1232 goto out; 1233 1234 /* End mgd_complete_tx. */ 1235 if (lsta->in_mgd) { 1236 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1237 prep_tx_info.success = true; 1238 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1239 lsta->in_mgd = false; 1240 } 1241 1242 /* Now start assoc. */ 1243 1244 /* Start mgd_prepare_tx. */ 1245 if (!lsta->in_mgd) { 1246 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1247 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1248 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1249 lsta->in_mgd = true; 1250 } 1251 1252 /* Wake tx queue to get packet out. */ 1253 lkpi_wake_tx_queues(hw, sta, true, true); 1254 1255 /* 1256 * <twiddle> .. we end up in "assoc_to_run" 1257 * - update sta_state (AUTH to ASSOC) 1258 * - conf_tx [all] 1259 * - bss_info_changed (assoc, aid, ssid, ..) 1260 * - change_chanctx (if needed) 1261 * - event_callback 1262 * - mgd_complete_tx 1263 */ 1264 1265 out: 1266 IEEE80211_LOCK(vap->iv_ic); 1267 if (ni != NULL) 1268 ieee80211_free_node(ni); 1269 return (error); 1270 } 1271 1272 /* auth_to_auth, assoc_to_assoc. */ 1273 static int 1274 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1275 { 1276 struct lkpi_hw *lhw; 1277 struct ieee80211_hw *hw; 1278 struct lkpi_vif *lvif; 1279 struct ieee80211_vif *vif; 1280 struct ieee80211_node *ni; 1281 struct lkpi_sta *lsta; 1282 struct ieee80211_prep_tx_info prep_tx_info; 1283 1284 lhw = vap->iv_ic->ic_softc; 1285 hw = LHW_TO_HW(lhw); 1286 lvif = VAP_TO_LVIF(vap); 1287 vif = LVIF_TO_VIF(lvif); 1288 1289 ni = ieee80211_ref_node(vap->iv_bss); 1290 1291 IEEE80211_UNLOCK(vap->iv_ic); 1292 lsta = ni->ni_drv_data; 1293 1294 IMPROVE("event callback?"); 1295 1296 /* End mgd_complete_tx. */ 1297 if (lsta->in_mgd) { 1298 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1299 prep_tx_info.success = false; 1300 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1301 lsta->in_mgd = false; 1302 } 1303 1304 /* Now start assoc. */ 1305 1306 /* Start mgd_prepare_tx. */ 1307 if (!lsta->in_mgd) { 1308 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1309 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1310 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1311 lsta->in_mgd = true; 1312 } 1313 1314 IEEE80211_LOCK(vap->iv_ic); 1315 if (ni != NULL) 1316 ieee80211_free_node(ni); 1317 1318 return (0); 1319 } 1320 1321 static int 1322 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1323 { 1324 struct lkpi_hw *lhw; 1325 struct ieee80211_hw *hw; 1326 struct lkpi_vif *lvif; 1327 struct ieee80211_vif *vif; 1328 struct ieee80211_node *ni; 1329 struct lkpi_sta *lsta; 1330 struct ieee80211_sta *sta; 1331 struct ieee80211_prep_tx_info prep_tx_info; 1332 enum ieee80211_bss_changed bss_changed; 1333 int error; 1334 1335 lhw = vap->iv_ic->ic_softc; 1336 hw = LHW_TO_HW(lhw); 1337 lvif = VAP_TO_LVIF(vap); 1338 vif = LVIF_TO_VIF(lvif); 1339 1340 /* Keep ni around. */ 1341 ni = ieee80211_ref_node(vap->iv_bss); 1342 lsta = ni->ni_drv_data; 1343 sta = LSTA_TO_STA(lsta); 1344 1345 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1346 1347 IEEE80211_UNLOCK(vap->iv_ic); 1348 1349 /* flush, drop. */ 1350 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1351 1352 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1353 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1354 !lsta->in_mgd) { 1355 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1356 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1357 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1358 lsta->in_mgd = true; 1359 } 1360 1361 IEEE80211_LOCK(vap->iv_ic); 1362 1363 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1364 error = lvif->iv_newstate(vap, nstate, arg); 1365 if (error != 0) 1366 goto outni; 1367 1368 IEEE80211_UNLOCK(vap->iv_ic); 1369 1370 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1371 1372 /* Wake tx queues to get packet(s) out. */ 1373 lkpi_wake_tx_queues(hw, sta, true, true); 1374 1375 /* flush, no drop */ 1376 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1377 1378 /* End mgd_complete_tx. */ 1379 if (lsta->in_mgd) { 1380 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1381 prep_tx_info.success = false; 1382 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1383 lsta->in_mgd = false; 1384 } 1385 1386 /* sync_rx_queues */ 1387 lkpi_80211_mo_sync_rx_queues(hw); 1388 1389 /* sta_pre_rcu_remove */ 1390 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1391 1392 /* Take the station down. */ 1393 1394 /* Update sta and change state (from AUTH) to NONE. */ 1395 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1396 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1397 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1398 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1399 if (error != 0) 1400 goto out; 1401 1402 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1403 1404 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1405 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1406 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1407 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1408 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1409 if (error != 0) { 1410 IMPROVE("do we need to undo the chan ctx?"); 1411 goto out; 1412 } 1413 #if 0 1414 lsta->added_to_drv = false; /* mo manages. */ 1415 #endif 1416 1417 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1418 1419 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1420 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1421 lkpi_disassoc(sta, vif, lhw); 1422 1423 IMPROVE("Any bss_info changes to announce?"); 1424 bss_changed = 0; 1425 vif->bss_conf.qos = 0; 1426 bss_changed |= BSS_CHANGED_QOS; 1427 vif->bss_conf.ssid_len = 0; 1428 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1429 bss_changed |= BSS_CHANGED_BSSID; 1430 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1431 1432 lkpi_lsta_remove(lsta, lvif); 1433 1434 /* conf_tx */ 1435 1436 /* Take the chan ctx down. */ 1437 if (vif->chanctx_conf != NULL) { 1438 struct ieee80211_chanctx_conf *conf; 1439 1440 conf = vif->chanctx_conf; 1441 /* Remove vif context. */ 1442 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1443 /* NB: vif->chanctx_conf is NULL now. */ 1444 1445 /* Remove chan ctx. */ 1446 lkpi_80211_mo_remove_chanctx(hw, conf); 1447 free(conf, M_LKPI80211); 1448 } 1449 1450 error = EALREADY; 1451 out: 1452 IEEE80211_LOCK(vap->iv_ic); 1453 outni: 1454 if (ni != NULL) 1455 ieee80211_free_node(ni); 1456 return (error); 1457 } 1458 1459 static int 1460 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1461 { 1462 int error; 1463 1464 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1465 if (error != 0 && error != EALREADY) 1466 return (error); 1467 1468 /* At this point iv_bss is long a new node! */ 1469 1470 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1471 return (error); 1472 } 1473 1474 static int 1475 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1476 { 1477 int error; 1478 1479 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1480 return (error); 1481 } 1482 1483 static int 1484 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1485 { 1486 int error; 1487 1488 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1489 return (error); 1490 } 1491 1492 static int 1493 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1494 { 1495 struct lkpi_hw *lhw; 1496 struct ieee80211_hw *hw; 1497 struct lkpi_vif *lvif; 1498 struct ieee80211_vif *vif; 1499 struct ieee80211_node *ni; 1500 struct lkpi_sta *lsta; 1501 struct ieee80211_sta *sta; 1502 struct ieee80211_prep_tx_info prep_tx_info; 1503 enum ieee80211_bss_changed bss_changed; 1504 int error; 1505 1506 lhw = vap->iv_ic->ic_softc; 1507 hw = LHW_TO_HW(lhw); 1508 lvif = VAP_TO_LVIF(vap); 1509 vif = LVIF_TO_VIF(lvif); 1510 1511 IEEE80211_UNLOCK(vap->iv_ic); 1512 ni = NULL; 1513 1514 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1515 "and to lesser extend ieee80211_notify_node_join"); 1516 1517 /* Finish assoc. */ 1518 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1519 ni = ieee80211_ref_node(vap->iv_bss); 1520 lsta = ni->ni_drv_data; 1521 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1522 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1523 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1524 sta = LSTA_TO_STA(lsta); 1525 sta->aid = IEEE80211_NODE_AID(ni); 1526 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1527 if (error != 0) 1528 goto out; 1529 1530 IMPROVE("wme / conf_tx [all]"); 1531 1532 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1533 bss_changed = 0; 1534 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1535 vif->bss_conf.assoc = true; 1536 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1537 bss_changed |= BSS_CHANGED_ASSOC; 1538 } 1539 /* We set SSID but this is not BSSID! */ 1540 vif->bss_conf.ssid_len = ni->ni_esslen; 1541 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1542 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1543 vif->bss_conf.use_short_preamble) { 1544 vif->bss_conf.use_short_preamble ^= 1; 1545 /* bss_changed |= BSS_CHANGED_??? */ 1546 } 1547 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1548 vif->bss_conf.use_short_slot) { 1549 vif->bss_conf.use_short_slot ^= 1; 1550 /* bss_changed |= BSS_CHANGED_??? */ 1551 } 1552 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1553 vif->bss_conf.qos) { 1554 vif->bss_conf.qos ^= 1; 1555 bss_changed |= BSS_CHANGED_QOS; 1556 } 1557 1558 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1559 1560 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1561 1562 /* - change_chanctx (if needed) 1563 * - event_callback 1564 */ 1565 1566 /* End mgd_complete_tx. */ 1567 if (lsta->in_mgd) { 1568 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1569 prep_tx_info.success = true; 1570 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1571 lsta->in_mgd = false; 1572 } 1573 1574 lkpi_hw_conf_idle(hw, false); 1575 1576 /* 1577 * And then: 1578 * - (more packets)? 1579 * - set_key 1580 * - set_default_unicast_key 1581 * - set_key (?) 1582 * - ipv6_addr_change (?) 1583 */ 1584 /* Prepare_multicast && configure_filter. */ 1585 lhw->update_mc = true; 1586 lkpi_update_mcast_filter(vap->iv_ic, true); 1587 1588 if (!ieee80211_node_is_authorized(ni)) { 1589 IMPROVE("net80211 does not consider node authorized"); 1590 } 1591 1592 /* Update sta_state (ASSOC to AUTHORIZED). */ 1593 ni = ieee80211_ref_node(vap->iv_bss); 1594 lsta = ni->ni_drv_data; 1595 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1596 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1597 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1598 sta = LSTA_TO_STA(lsta); 1599 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1600 if (error != 0) { 1601 IMPROVE("undo some changes?"); 1602 goto out; 1603 } 1604 1605 /* - drv_config (?) 1606 * - bss_info_changed 1607 * - set_rekey_data (?) 1608 * 1609 * And now we should be passing packets. 1610 */ 1611 IMPROVE("Need that bssid setting, and the keys"); 1612 1613 bss_changed = 0; 1614 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1615 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1616 1617 out: 1618 IEEE80211_LOCK(vap->iv_ic); 1619 if (ni != NULL) 1620 ieee80211_free_node(ni); 1621 return (error); 1622 } 1623 1624 static int 1625 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1626 { 1627 int error; 1628 1629 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1630 if (error == 0) 1631 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1632 return (error); 1633 } 1634 1635 static int 1636 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1637 { 1638 struct lkpi_hw *lhw; 1639 struct ieee80211_hw *hw; 1640 struct lkpi_vif *lvif; 1641 struct ieee80211_vif *vif; 1642 struct ieee80211_node *ni; 1643 struct lkpi_sta *lsta; 1644 struct ieee80211_sta *sta; 1645 struct ieee80211_prep_tx_info prep_tx_info; 1646 #if 0 1647 enum ieee80211_bss_changed bss_changed; 1648 #endif 1649 int error; 1650 1651 lhw = vap->iv_ic->ic_softc; 1652 hw = LHW_TO_HW(lhw); 1653 lvif = VAP_TO_LVIF(vap); 1654 vif = LVIF_TO_VIF(lvif); 1655 1656 /* Keep ni around. */ 1657 ni = ieee80211_ref_node(vap->iv_bss); 1658 lsta = ni->ni_drv_data; 1659 sta = LSTA_TO_STA(lsta); 1660 1661 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1662 1663 IEEE80211_UNLOCK(vap->iv_ic); 1664 1665 /* flush, drop. */ 1666 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1667 1668 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1669 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1670 !lsta->in_mgd) { 1671 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1672 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1673 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1674 lsta->in_mgd = true; 1675 } 1676 1677 IEEE80211_LOCK(vap->iv_ic); 1678 1679 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1680 error = lvif->iv_newstate(vap, nstate, arg); 1681 if (error != 0) 1682 goto outni; 1683 1684 IEEE80211_UNLOCK(vap->iv_ic); 1685 1686 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1687 1688 /* Wake tx queues to get packet(s) out. */ 1689 lkpi_wake_tx_queues(hw, sta, true, true); 1690 1691 /* flush, no drop */ 1692 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1693 1694 /* End mgd_complete_tx. */ 1695 if (lsta->in_mgd) { 1696 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1697 prep_tx_info.success = false; 1698 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1699 lsta->in_mgd = false; 1700 } 1701 1702 #if 0 1703 /* sync_rx_queues */ 1704 lkpi_80211_mo_sync_rx_queues(hw); 1705 1706 /* sta_pre_rcu_remove */ 1707 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1708 #endif 1709 1710 /* Take the station down. */ 1711 1712 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1713 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1714 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1715 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1716 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1717 if (error != 0) 1718 goto out; 1719 1720 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1721 1722 /* Update sta_state (ASSOC to AUTH). */ 1723 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1724 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1725 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1726 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1727 if (error != 0) 1728 goto out; 1729 1730 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1731 1732 #if 0 1733 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1734 lkpi_disassoc(sta, vif, lhw); 1735 #endif 1736 1737 error = EALREADY; 1738 out: 1739 IEEE80211_LOCK(vap->iv_ic); 1740 outni: 1741 if (ni != NULL) 1742 ieee80211_free_node(ni); 1743 return (error); 1744 } 1745 1746 static int 1747 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1748 { 1749 struct lkpi_hw *lhw; 1750 struct ieee80211_hw *hw; 1751 struct lkpi_vif *lvif; 1752 struct ieee80211_vif *vif; 1753 struct ieee80211_node *ni; 1754 struct lkpi_sta *lsta; 1755 struct ieee80211_sta *sta; 1756 struct ieee80211_prep_tx_info prep_tx_info; 1757 enum ieee80211_bss_changed bss_changed; 1758 int error; 1759 1760 lhw = vap->iv_ic->ic_softc; 1761 hw = LHW_TO_HW(lhw); 1762 lvif = VAP_TO_LVIF(vap); 1763 vif = LVIF_TO_VIF(lvif); 1764 1765 /* Keep ni around. */ 1766 ni = ieee80211_ref_node(vap->iv_bss); 1767 lsta = ni->ni_drv_data; 1768 sta = LSTA_TO_STA(lsta); 1769 1770 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1771 1772 IEEE80211_UNLOCK(vap->iv_ic); 1773 1774 /* flush, drop. */ 1775 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1776 1777 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1778 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1779 !lsta->in_mgd) { 1780 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1781 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1782 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1783 lsta->in_mgd = true; 1784 } 1785 1786 IEEE80211_LOCK(vap->iv_ic); 1787 1788 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1789 error = lvif->iv_newstate(vap, nstate, arg); 1790 if (error != 0) 1791 goto outni; 1792 1793 IEEE80211_UNLOCK(vap->iv_ic); 1794 1795 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1796 1797 /* Wake tx queues to get packet(s) out. */ 1798 lkpi_wake_tx_queues(hw, sta, true, true); 1799 1800 /* flush, no drop */ 1801 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1802 1803 /* End mgd_complete_tx. */ 1804 if (lsta->in_mgd) { 1805 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1806 prep_tx_info.success = false; 1807 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1808 lsta->in_mgd = false; 1809 } 1810 1811 /* sync_rx_queues */ 1812 lkpi_80211_mo_sync_rx_queues(hw); 1813 1814 /* sta_pre_rcu_remove */ 1815 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1816 1817 /* Take the station down. */ 1818 1819 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1820 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1821 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1822 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1823 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1824 if (error != 0) 1825 goto out; 1826 1827 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1828 1829 /* Update sta_state (ASSOC to AUTH). */ 1830 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1831 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1832 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1833 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1834 if (error != 0) 1835 goto out; 1836 1837 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1838 1839 /* Update sta and change state (from AUTH) to NONE. */ 1840 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1841 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1842 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1843 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1844 if (error != 0) 1845 goto out; 1846 1847 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1848 1849 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1850 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1851 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1852 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1853 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1854 if (error != 0) { 1855 IMPROVE("do we need to undo the chan ctx?"); 1856 goto out; 1857 } 1858 #if 0 1859 lsta->added_to_drv = false; /* mo manages. */ 1860 #endif 1861 1862 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1863 1864 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1865 /* 1866 * One would expect this to happen when going off AUTHORIZED. 1867 * See comment there; removes the sta from fw. 1868 */ 1869 lkpi_disassoc(sta, vif, lhw); 1870 1871 IMPROVE("Any bss_info changes to announce?"); 1872 bss_changed = 0; 1873 vif->bss_conf.qos = 0; 1874 bss_changed |= BSS_CHANGED_QOS; 1875 vif->bss_conf.ssid_len = 0; 1876 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1877 bss_changed |= BSS_CHANGED_BSSID; 1878 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1879 1880 lkpi_lsta_remove(lsta, lvif); 1881 1882 /* conf_tx */ 1883 1884 /* Take the chan ctx down. */ 1885 if (vif->chanctx_conf != NULL) { 1886 struct ieee80211_chanctx_conf *conf; 1887 1888 conf = vif->chanctx_conf; 1889 /* Remove vif context. */ 1890 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1891 /* NB: vif->chanctx_conf is NULL now. */ 1892 1893 /* Remove chan ctx. */ 1894 lkpi_80211_mo_remove_chanctx(hw, conf); 1895 free(conf, M_LKPI80211); 1896 } 1897 1898 error = EALREADY; 1899 out: 1900 IEEE80211_LOCK(vap->iv_ic); 1901 outni: 1902 if (ni != NULL) 1903 ieee80211_free_node(ni); 1904 return (error); 1905 } 1906 1907 static int 1908 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1909 { 1910 1911 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1912 } 1913 1914 static int 1915 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1916 { 1917 int error; 1918 1919 error = lkpi_sta_run_to_init(vap, nstate, arg); 1920 if (error != 0 && error != EALREADY) 1921 return (error); 1922 1923 /* At this point iv_bss is long a new node! */ 1924 1925 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1926 return (error); 1927 } 1928 1929 /* -------------------------------------------------------------------------- */ 1930 1931 /* 1932 * The matches the documented state changes in net80211::sta_newstate(). 1933 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1934 * there are "invalid" (so there is a room for failure here). 1935 */ 1936 struct fsm_state { 1937 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1938 enum ieee80211_state ostate; 1939 enum ieee80211_state nstate; 1940 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1941 } sta_state_fsm[] = { 1942 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1943 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1944 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1945 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1946 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1947 1948 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1949 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1950 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1951 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1952 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1953 1954 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1955 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1956 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1957 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1958 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1959 1960 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1961 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1962 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1963 1964 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1965 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1966 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1967 1968 /* Dummy at the end without handler. */ 1969 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1970 }; 1971 1972 static int 1973 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1974 { 1975 struct ieee80211com *ic; 1976 struct lkpi_hw *lhw; 1977 struct lkpi_vif *lvif; 1978 struct ieee80211_vif *vif; 1979 struct fsm_state *s; 1980 enum ieee80211_state ostate; 1981 int error; 1982 1983 ic = vap->iv_ic; 1984 IEEE80211_LOCK_ASSERT(ic); 1985 ostate = vap->iv_state; 1986 1987 #ifdef LINUXKPI_DEBUG_80211 1988 if (linuxkpi_debug_80211 & D80211_TRACE) 1989 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1990 __func__, __LINE__, vap, nstate, arg); 1991 #endif 1992 1993 if (vap->iv_opmode == IEEE80211_M_STA) { 1994 1995 lhw = ic->ic_softc; 1996 lvif = VAP_TO_LVIF(vap); 1997 vif = LVIF_TO_VIF(lvif); 1998 1999 /* No need to replicate this in most state handlers. */ 2000 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 2001 lkpi_stop_hw_scan(lhw, vif); 2002 2003 s = sta_state_fsm; 2004 2005 } else { 2006 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 2007 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 2008 return (ENOSYS); 2009 } 2010 2011 error = 0; 2012 for (; s->handler != NULL; s++) { 2013 if (ostate == s->ostate && nstate == s->nstate) { 2014 #ifdef LINUXKPI_DEBUG_80211 2015 if (linuxkpi_debug_80211 & D80211_TRACE) 2016 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 2017 " %d (%s): arg %d.\n", __func__, 2018 ostate, ieee80211_state_name[ostate], 2019 nstate, ieee80211_state_name[nstate], arg); 2020 #endif 2021 error = s->handler(vap, nstate, arg); 2022 break; 2023 } 2024 } 2025 IEEE80211_LOCK_ASSERT(vap->iv_ic); 2026 2027 if (s->handler == NULL) { 2028 IMPROVE("turn this into a KASSERT\n"); 2029 ic_printf(vap->iv_ic, "%s: unsupported state transition " 2030 "%d (%s) -> %d (%s)\n", __func__, 2031 ostate, ieee80211_state_name[ostate], 2032 nstate, ieee80211_state_name[nstate]); 2033 return (ENOSYS); 2034 } 2035 2036 if (error == EALREADY) { 2037 #ifdef LINUXKPI_DEBUG_80211 2038 if (linuxkpi_debug_80211 & D80211_TRACE) 2039 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2040 "%d (%s): iv_newstate already handled: %d.\n", 2041 __func__, ostate, ieee80211_state_name[ostate], 2042 nstate, ieee80211_state_name[nstate], error); 2043 #endif 2044 return (0); 2045 } 2046 2047 if (error != 0) { 2048 /* XXX-BZ currently expected so ignore. */ 2049 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2050 "%d (%s) -> %d (%s)\n", __func__, error, 2051 ostate, ieee80211_state_name[ostate], 2052 nstate, ieee80211_state_name[nstate]); 2053 /* return (error); */ 2054 } 2055 2056 #ifdef LINUXKPI_DEBUG_80211 2057 if (linuxkpi_debug_80211 & D80211_TRACE) 2058 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2059 "calling net80211 parent\n", 2060 __func__, __LINE__, vap, nstate, arg); 2061 #endif 2062 2063 return (lvif->iv_newstate(vap, nstate, arg)); 2064 } 2065 2066 /* -------------------------------------------------------------------------- */ 2067 2068 /* 2069 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2070 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2071 * new node without us knowing and thus our ni/lsta are out of sync. 2072 */ 2073 static struct ieee80211_node * 2074 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2075 { 2076 struct lkpi_vif *lvif; 2077 struct ieee80211_node *obss; 2078 struct lkpi_sta *lsta; 2079 2080 lvif = VAP_TO_LVIF(vap); 2081 obss = vap->iv_bss; 2082 2083 #ifdef LINUXKPI_DEBUG_80211 2084 if (linuxkpi_debug_80211 & D80211_TRACE) 2085 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2086 "ni %p ni_drv_data %p\n", __func__, 2087 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2088 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2089 #endif 2090 2091 /* Nothing to copy from. Just return. */ 2092 if (obss == NULL || obss->ni_drv_data == NULL) 2093 goto out; 2094 2095 /* Nothing to copy to. Just return. */ 2096 IMPROVE("clearing the obss might still be needed?"); 2097 if (ni == NULL) 2098 goto out; 2099 2100 /* Nothing changed? panic? */ 2101 if (obss == ni) 2102 goto out; 2103 2104 lsta = obss->ni_drv_data; 2105 obss->ni_drv_data = ni->ni_drv_data; 2106 ni->ni_drv_data = lsta; 2107 if (lsta != NULL) 2108 lsta->ni = ni; 2109 lsta = obss->ni_drv_data; 2110 if (lsta != NULL) 2111 lsta->ni = obss; 2112 2113 out: 2114 return (lvif->iv_update_bss(vap, ni)); 2115 } 2116 2117 static int 2118 lkpi_ic_wme_update(struct ieee80211com *ic) 2119 { 2120 /* This needs queuing and go at the right moment. */ 2121 #ifdef WITH_WME_UPDATE 2122 struct ieee80211vap *vap; 2123 struct lkpi_hw *lhw; 2124 struct ieee80211_hw *hw; 2125 struct lkpi_vif *lvif; 2126 struct ieee80211_vif *vif; 2127 struct chanAccParams chp; 2128 struct wmeParams wmeparr[WME_NUM_AC]; 2129 struct ieee80211_tx_queue_params txqp; 2130 enum ieee80211_bss_changed changed; 2131 int error; 2132 uint16_t ac; 2133 #endif 2134 2135 IMPROVE(); 2136 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2137 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2138 2139 #ifdef WITH_WME_UPDATE 2140 vap = TAILQ_FIRST(&ic->ic_vaps); 2141 if (vap == NULL) 2142 return (0); 2143 2144 /* We should factor this out into per-vap (*wme_update). */ 2145 lhw = ic->ic_softc; 2146 if (lhw->ops->conf_tx == NULL) 2147 return (0); 2148 2149 /* XXX-BZ check amount of hw queues */ 2150 hw = LHW_TO_HW(lhw); 2151 lvif = VAP_TO_LVIF(vap); 2152 vif = LVIF_TO_VIF(lvif); 2153 2154 ieee80211_wme_ic_getparams(ic, &chp); 2155 IEEE80211_LOCK(ic); 2156 for (ac = 0; ac < WME_NUM_AC; ac++) 2157 wmeparr[ac] = chp.cap_wmeParams[ac]; 2158 IEEE80211_UNLOCK(ic); 2159 2160 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2161 LKPI_80211_LHW_LOCK(lhw); 2162 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2163 struct wmeParams *wmep; 2164 2165 /* XXX-BZ should keep this in lvif? */ 2166 wmep = &wmeparr[ac]; 2167 bzero(&txqp, sizeof(txqp)); 2168 txqp.cw_min = wmep->wmep_logcwmin; 2169 txqp.cw_max = wmep->wmep_logcwmax; 2170 txqp.txop = wmep->wmep_txopLimit; 2171 txqp.aifs = wmep->wmep_aifsn; 2172 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2173 if (error != 0) 2174 printf("%s: conf_tx ac %u failed %d\n", 2175 __func__, ac, error); 2176 } 2177 LKPI_80211_LHW_UNLOCK(lhw); 2178 changed = BSS_CHANGED_QOS; 2179 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2180 #endif 2181 2182 return (0); 2183 } 2184 2185 static struct ieee80211vap * 2186 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2187 int unit, enum ieee80211_opmode opmode, int flags, 2188 const uint8_t bssid[IEEE80211_ADDR_LEN], 2189 const uint8_t mac[IEEE80211_ADDR_LEN]) 2190 { 2191 struct lkpi_hw *lhw; 2192 struct ieee80211_hw *hw; 2193 struct lkpi_vif *lvif; 2194 struct ieee80211vap *vap; 2195 struct ieee80211_vif *vif; 2196 enum ieee80211_bss_changed changed; 2197 size_t len; 2198 int error; 2199 2200 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2201 return (NULL); 2202 2203 lhw = ic->ic_softc; 2204 hw = LHW_TO_HW(lhw); 2205 2206 len = sizeof(*lvif); 2207 len += hw->vif_data_size; /* vif->drv_priv */ 2208 2209 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2210 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2211 TAILQ_INIT(&lvif->lsta_head); 2212 vap = LVIF_TO_VAP(lvif); 2213 2214 vif = LVIF_TO_VIF(lvif); 2215 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2216 vif->p2p = false; 2217 vif->probe_req_reg = false; 2218 vif->type = lkpi_opmode_to_vif_type(opmode); 2219 lvif->wdev.iftype = vif->type; 2220 /* Need to fill in other fields as well. */ 2221 IMPROVE(); 2222 2223 /* XXX-BZ hardcoded for now! */ 2224 #if 1 2225 vif->chanctx_conf = NULL; 2226 vif->bss_conf.idle = true; 2227 vif->bss_conf.ps = false; 2228 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2229 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2230 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2231 vif->bss_conf.qos = false; 2232 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2233 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2234 vif->bss_conf.assoc = false; 2235 vif->bss_conf.aid = 0; 2236 #endif 2237 #if 0 2238 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2239 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2240 vif->bss_conf.beacon_int = ic->ic_bintval; 2241 /* iwlwifi bug. */ 2242 if (vif->bss_conf.beacon_int < 16) 2243 vif->bss_conf.beacon_int = 16; 2244 #endif 2245 IMPROVE(); 2246 2247 error = lkpi_80211_mo_start(hw); 2248 if (error != 0) { 2249 printf("%s: failed to start hw: %d\n", __func__, error); 2250 mtx_destroy(&lvif->mtx); 2251 free(lvif, M_80211_VAP); 2252 return (NULL); 2253 } 2254 2255 error = lkpi_80211_mo_add_interface(hw, vif); 2256 if (error != 0) { 2257 IMPROVE(); /* XXX-BZ mo_stop()? */ 2258 printf("%s: failed to add interface: %d\n", __func__, error); 2259 mtx_destroy(&lvif->mtx); 2260 free(lvif, M_80211_VAP); 2261 return (NULL); 2262 } 2263 2264 LKPI_80211_LHW_LOCK(lhw); 2265 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2266 LKPI_80211_LHW_UNLOCK(lhw); 2267 2268 /* Set bss_info. */ 2269 changed = 0; 2270 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2271 2272 /* conf_tx setup; default WME? */ 2273 2274 /* Force MC init. */ 2275 lkpi_update_mcast_filter(ic, true); 2276 2277 IMPROVE(); 2278 2279 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2280 2281 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2282 lvif->iv_newstate = vap->iv_newstate; 2283 vap->iv_newstate = lkpi_iv_newstate; 2284 lvif->iv_update_bss = vap->iv_update_bss; 2285 vap->iv_update_bss = lkpi_iv_update_bss; 2286 2287 /* Key management. */ 2288 if (lhw->ops->set_key != NULL) { 2289 #ifdef TRY_HW_CRYPTO 2290 vap->iv_key_set = lkpi_iv_key_set; 2291 vap->iv_key_delete = lkpi_iv_key_delete; 2292 #endif 2293 } 2294 2295 ieee80211_ratectl_init(vap); 2296 2297 /* Complete setup. */ 2298 ieee80211_vap_attach(vap, ieee80211_media_change, 2299 ieee80211_media_status, mac); 2300 2301 if (hw->max_listen_interval == 0) 2302 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2303 hw->conf.listen_interval = hw->max_listen_interval; 2304 ic->ic_set_channel(ic); 2305 2306 /* XXX-BZ do we need to be able to update these? */ 2307 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2308 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2309 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2310 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2311 /* any others? */ 2312 IMPROVE(); 2313 2314 return (vap); 2315 } 2316 2317 static void 2318 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2319 { 2320 struct ieee80211com *ic; 2321 struct lkpi_hw *lhw; 2322 struct ieee80211_hw *hw; 2323 struct lkpi_vif *lvif; 2324 struct ieee80211_vif *vif; 2325 2326 lvif = VAP_TO_LVIF(vap); 2327 vif = LVIF_TO_VIF(lvif); 2328 ic = vap->iv_ic; 2329 lhw = ic->ic_softc; 2330 hw = LHW_TO_HW(lhw); 2331 2332 LKPI_80211_LHW_LOCK(lhw); 2333 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2334 LKPI_80211_LHW_UNLOCK(lhw); 2335 lkpi_80211_mo_remove_interface(hw, vif); 2336 2337 ieee80211_ratectl_deinit(vap); 2338 ieee80211_vap_detach(vap); 2339 mtx_destroy(&lvif->mtx); 2340 free(lvif, M_80211_VAP); 2341 } 2342 2343 static void 2344 lkpi_ic_update_mcast(struct ieee80211com *ic) 2345 { 2346 2347 lkpi_update_mcast_filter(ic, false); 2348 TRACEOK(); 2349 } 2350 2351 static void 2352 lkpi_ic_update_promisc(struct ieee80211com *ic) 2353 { 2354 2355 UNIMPLEMENTED; 2356 } 2357 2358 static void 2359 lkpi_ic_update_chw(struct ieee80211com *ic) 2360 { 2361 2362 UNIMPLEMENTED; 2363 } 2364 2365 /* Start / stop device. */ 2366 static void 2367 lkpi_ic_parent(struct ieee80211com *ic) 2368 { 2369 struct lkpi_hw *lhw; 2370 struct ieee80211_hw *hw; 2371 int error; 2372 bool start_all; 2373 2374 IMPROVE(); 2375 2376 lhw = ic->ic_softc; 2377 hw = LHW_TO_HW(lhw); 2378 start_all = false; 2379 2380 if (ic->ic_nrunning > 0) { 2381 error = lkpi_80211_mo_start(hw); 2382 if (error == 0) 2383 start_all = true; 2384 } else { 2385 lkpi_80211_mo_stop(hw); 2386 } 2387 2388 if (start_all) 2389 ieee80211_start_all(ic); 2390 } 2391 2392 bool 2393 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2394 size_t ie_ids_len) 2395 { 2396 int i; 2397 2398 for (i = 0; i < ie_ids_len; i++) { 2399 if (ie == *ie_ids) 2400 return (true); 2401 } 2402 2403 return (false); 2404 } 2405 2406 /* Return true if skipped; false if error. */ 2407 bool 2408 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2409 { 2410 size_t x; 2411 uint8_t l; 2412 2413 x = *xp; 2414 2415 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2416 __func__, x, ies_len, ies)); 2417 l = ies[x + 1]; 2418 x += 2 + l; 2419 2420 if (x > ies_len) 2421 return (false); 2422 2423 *xp = x; 2424 return (true); 2425 } 2426 2427 static int 2428 lkpi_ieee80211_probereq_ie_alloc(struct ieee80211vap *vap, 2429 struct ieee80211com *ic, struct ieee80211_scan_ies *scan_ies, 2430 const uint8_t *ssid, size_t ssidlen) 2431 { 2432 2433 return (ieee80211_probereq_ie(vap, ic, 2434 &scan_ies->common_ies, &scan_ies->common_ie_len, 2435 ssid, ssidlen, true)); 2436 } 2437 2438 static void 2439 lkpi_ic_scan_start(struct ieee80211com *ic) 2440 { 2441 struct lkpi_hw *lhw; 2442 struct ieee80211_hw *hw; 2443 struct lkpi_vif *lvif; 2444 struct ieee80211_vif *vif; 2445 struct ieee80211_scan_state *ss; 2446 struct ieee80211vap *vap; 2447 int error; 2448 2449 lhw = ic->ic_softc; 2450 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) { 2451 /* A scan is still running. */ 2452 return; 2453 } 2454 2455 ss = ic->ic_scan; 2456 vap = ss->ss_vap; 2457 if (vap->iv_state != IEEE80211_S_SCAN) { 2458 IMPROVE("We need to be able to scan if not in S_SCAN"); 2459 return; 2460 } 2461 2462 hw = LHW_TO_HW(lhw); 2463 if ((vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) == 0) { 2464 sw_scan: 2465 lvif = VAP_TO_LVIF(vap); 2466 vif = LVIF_TO_VIF(lvif); 2467 2468 if (vap->iv_state == IEEE80211_S_SCAN) 2469 lkpi_hw_conf_idle(hw, false); 2470 2471 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2472 /* net80211::scan_start() handled PS for us. */ 2473 IMPROVE(); 2474 /* XXX Also means it is too late to flush queues? 2475 * need to check iv_sta_ps or overload? */ 2476 /* XXX want to adjust ss end time/ maxdwell? */ 2477 2478 } else { 2479 struct ieee80211_channel *c; 2480 struct ieee80211_scan_request *hw_req; 2481 struct linuxkpi_ieee80211_channel *lc, **cpp; 2482 struct cfg80211_ssid *ssids; 2483 struct cfg80211_scan_6ghz_params *s6gp; 2484 size_t chan_len, nchan, ssids_len, s6ghzlen; 2485 int i; 2486 2487 ssids_len = ss->ss_nssid * sizeof(*ssids);; 2488 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2489 2490 nchan = 0; 2491 for (i = ss->ss_next; i < ss->ss_last; i++) 2492 nchan++; 2493 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2494 2495 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2496 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2497 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2498 s6ghzlen + chan_len, M_LKPI80211, M_WAITOK | M_ZERO); 2499 2500 error = lkpi_ieee80211_probereq_ie_alloc(vap, ic, 2501 &hw_req->ies, NULL, -1); 2502 if (error != 0) 2503 ic_printf(ic, "ERROR: %s: probereq_ie returned %d\n", 2504 __func__, error); 2505 2506 hw_req->req.flags = 0; /* XXX ??? */ 2507 /* hw_req->req.wdev */ 2508 hw_req->req.wiphy = hw->wiphy; 2509 hw_req->req.no_cck = false; /* XXX */ 2510 #if 0 2511 /* This seems to pessimise default scanning behaviour. */ 2512 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2513 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2514 #endif 2515 #ifdef __notyet__ 2516 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2517 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2518 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2519 #endif 2520 #if 0 2521 hw_req->req.ie_len = ; 2522 hw_req->req.ie = ; 2523 #endif 2524 #if 0 2525 hw->wiphy->max_scan_ie_len 2526 hw->wiphy->max_scan_ssids 2527 #endif 2528 2529 hw_req->req.n_channels = nchan; 2530 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2531 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2532 for (i = 0; i < nchan; i++) { 2533 *(cpp + i) = 2534 (struct linuxkpi_ieee80211_channel *)(lc + i); 2535 } 2536 for (i = 0; i < nchan; i++) { 2537 c = ss->ss_chans[ss->ss_next + i]; 2538 2539 lc->hw_value = c->ic_ieee; 2540 lc->center_freq = c->ic_freq; 2541 /* lc->flags */ 2542 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2543 lc->max_power = c->ic_maxpower; 2544 /* lc-> ... */ 2545 lc++; 2546 } 2547 2548 hw_req->req.n_ssids = ss->ss_nssid; 2549 if (hw_req->req.n_ssids > 0) { 2550 ssids = (struct cfg80211_ssid *)lc; 2551 hw_req->req.ssids = ssids; 2552 for (i = 0; i < ss->ss_nssid; i++) { 2553 ssids->ssid_len = ss->ss_ssid[i].len; 2554 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2555 ss->ss_ssid[i].len); 2556 ssids++; 2557 } 2558 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2559 } else { 2560 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2561 } 2562 2563 /* 6GHz one day. */ 2564 hw_req->req.n_6ghz_params = 0; 2565 hw_req->req.scan_6ghz_params = NULL; 2566 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2567 /* s6gp->... */ 2568 2569 lvif = VAP_TO_LVIF(vap); 2570 vif = LVIF_TO_VIF(lvif); 2571 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2572 if (error != 0) { 2573 free(hw_req->ies.common_ies, M_80211_VAP); 2574 free(hw_req, M_LKPI80211); 2575 lhw->hw_req = NULL; 2576 2577 ieee80211_cancel_scan(vap); 2578 /* 2579 * XXX-SIGH magic number. 2580 * rtw88 has a magic "return 1" if offloading scan is 2581 * not possible. Fall back to sw scan in that case. 2582 */ 2583 if (error == 1) { 2584 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2585 ieee80211_start_scan(vap, 2586 IEEE80211_SCAN_ACTIVE | 2587 IEEE80211_SCAN_NOPICK | 2588 IEEE80211_SCAN_ONCE, 2589 IEEE80211_SCAN_FOREVER, 2590 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2591 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2592 vap->iv_des_nssid, vap->iv_des_ssid); 2593 goto sw_scan; 2594 } 2595 2596 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2597 __func__, error); 2598 } 2599 } 2600 } 2601 2602 static void 2603 lkpi_ic_scan_end(struct ieee80211com *ic) 2604 { 2605 struct lkpi_hw *lhw; 2606 struct ieee80211_scan_state *ss; 2607 struct ieee80211vap *vap; 2608 2609 lhw = ic->ic_softc; 2610 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2611 return; 2612 } 2613 2614 ss = ic->ic_scan; 2615 vap = ss->ss_vap; 2616 if (vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2617 /* Nothing to do. */ 2618 } else { 2619 struct ieee80211_hw *hw; 2620 struct lkpi_vif *lvif; 2621 struct ieee80211_vif *vif; 2622 2623 hw = LHW_TO_HW(lhw); 2624 lvif = VAP_TO_LVIF(vap); 2625 vif = LVIF_TO_VIF(lvif); 2626 lkpi_80211_mo_sw_scan_complete(hw, vif); 2627 2628 /* Send PS to stop buffering if n80211 does not for us? */ 2629 2630 if (vap->iv_state == IEEE80211_S_SCAN) 2631 lkpi_hw_conf_idle(hw, true); 2632 } 2633 } 2634 2635 static void 2636 lkpi_ic_set_channel(struct ieee80211com *ic) 2637 { 2638 struct lkpi_hw *lhw; 2639 struct ieee80211_hw *hw; 2640 struct ieee80211_channel *c; 2641 struct linuxkpi_ieee80211_channel *chan; 2642 int error; 2643 2644 lhw = ic->ic_softc; 2645 2646 /* If we do not support (*config)() save us the work. */ 2647 if (lhw->ops->config == NULL) 2648 return; 2649 2650 c = ic->ic_curchan; 2651 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2652 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2653 c, lhw->ops->config); 2654 return; 2655 } 2656 2657 chan = lkpi_find_lkpi80211_chan(lhw, c); 2658 if (chan == NULL) { 2659 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2660 c, chan); 2661 return; 2662 } 2663 2664 /* XXX max power for scanning? */ 2665 IMPROVE(); 2666 2667 hw = LHW_TO_HW(lhw); 2668 cfg80211_chandef_create(&hw->conf.chandef, chan, 2669 NL80211_CHAN_NO_HT); 2670 2671 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2672 if (error != 0 && error != EOPNOTSUPP) { 2673 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2674 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2675 /* XXX should we unroll to the previous chandef? */ 2676 IMPROVE(); 2677 } else { 2678 /* Update radiotap channels as well. */ 2679 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2680 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2681 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2682 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2683 } 2684 2685 /* Currently PS is hard coded off! Not sure it belongs here. */ 2686 IMPROVE(); 2687 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2688 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2689 hw->conf.flags &= ~IEEE80211_CONF_PS; 2690 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2691 if (error != 0 && error != EOPNOTSUPP) 2692 ic_printf(ic, "ERROR: %s: config %#0x returned " 2693 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2694 error); 2695 } 2696 } 2697 2698 static struct ieee80211_node * 2699 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2700 const uint8_t mac[IEEE80211_ADDR_LEN]) 2701 { 2702 struct ieee80211com *ic; 2703 struct lkpi_hw *lhw; 2704 struct ieee80211_node *ni; 2705 struct ieee80211_hw *hw; 2706 struct lkpi_sta *lsta; 2707 2708 ic = vap->iv_ic; 2709 lhw = ic->ic_softc; 2710 2711 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2712 if (lhw->ic_node_alloc == NULL) 2713 return (NULL); 2714 2715 ni = lhw->ic_node_alloc(vap, mac); 2716 if (ni == NULL) 2717 return (NULL); 2718 2719 hw = LHW_TO_HW(lhw); 2720 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2721 if (lsta == NULL) { 2722 if (lhw->ic_node_free != NULL) 2723 lhw->ic_node_free(ni); 2724 return (NULL); 2725 } 2726 2727 return (ni); 2728 } 2729 2730 static int 2731 lkpi_ic_node_init(struct ieee80211_node *ni) 2732 { 2733 struct ieee80211com *ic; 2734 struct lkpi_hw *lhw; 2735 struct lkpi_sta *lsta; 2736 struct lkpi_vif *lvif; 2737 int error; 2738 2739 ic = ni->ni_ic; 2740 lhw = ic->ic_softc; 2741 2742 if (lhw->ic_node_init != NULL) { 2743 error = lhw->ic_node_init(ni); 2744 if (error != 0) 2745 return (error); 2746 } 2747 2748 lvif = VAP_TO_LVIF(ni->ni_vap); 2749 2750 lsta = ni->ni_drv_data; 2751 2752 /* Now take the reference before linking it to the table. */ 2753 lsta->ni = ieee80211_ref_node(ni); 2754 2755 LKPI_80211_LVIF_LOCK(lvif); 2756 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 2757 LKPI_80211_LVIF_UNLOCK(lvif); 2758 2759 /* XXX-BZ Sync other state over. */ 2760 IMPROVE(); 2761 2762 return (0); 2763 } 2764 2765 static void 2766 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2767 { 2768 struct ieee80211com *ic; 2769 struct lkpi_hw *lhw; 2770 2771 ic = ni->ni_ic; 2772 lhw = ic->ic_softc; 2773 2774 /* XXX-BZ remove from driver, ... */ 2775 IMPROVE(); 2776 2777 if (lhw->ic_node_cleanup != NULL) 2778 lhw->ic_node_cleanup(ni); 2779 } 2780 2781 static void 2782 lkpi_ic_node_free(struct ieee80211_node *ni) 2783 { 2784 struct ieee80211com *ic; 2785 struct lkpi_hw *lhw; 2786 struct lkpi_sta *lsta; 2787 2788 ic = ni->ni_ic; 2789 lhw = ic->ic_softc; 2790 lsta = ni->ni_drv_data; 2791 if (lsta == NULL) 2792 goto out; 2793 2794 /* XXX-BZ free resources, ... */ 2795 IMPROVE(); 2796 2797 /* Flush mbufq (make sure to release ni refs!). */ 2798 #ifdef __notyet__ 2799 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2800 __func__, lsta, mbufq_len(&lsta->txq))); 2801 #endif 2802 /* Drain taskq. */ 2803 2804 /* Drain sta->txq[] */ 2805 mtx_destroy(&lsta->txq_mtx); 2806 2807 /* Remove lsta if added_to_drv. */ 2808 /* Remove lsta from vif */ 2809 2810 /* remove ref from lsta node... */ 2811 2812 /* Free lsta. */ 2813 2814 out: 2815 if (lhw->ic_node_free != NULL) 2816 lhw->ic_node_free(ni); 2817 } 2818 2819 static int 2820 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2821 const struct ieee80211_bpf_params *params __unused) 2822 { 2823 struct lkpi_sta *lsta; 2824 2825 lsta = ni->ni_drv_data; 2826 2827 /* Queue the packet and enqueue the task to handle it. */ 2828 LKPI_80211_LSTA_LOCK(lsta); 2829 mbufq_enqueue(&lsta->txq, m); 2830 LKPI_80211_LSTA_UNLOCK(lsta); 2831 2832 #ifdef LINUXKPI_DEBUG_80211 2833 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 2834 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2835 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2836 mbufq_len(&lsta->txq)); 2837 #endif 2838 2839 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2840 return (0); 2841 } 2842 2843 static void 2844 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2845 { 2846 struct ieee80211_node *ni; 2847 struct ieee80211_frame *wh; 2848 struct ieee80211_key *k; 2849 struct sk_buff *skb; 2850 struct ieee80211com *ic; 2851 struct lkpi_hw *lhw; 2852 struct ieee80211_hw *hw; 2853 struct lkpi_vif *lvif; 2854 struct ieee80211_vif *vif; 2855 struct ieee80211_channel *c; 2856 struct ieee80211_tx_control control; 2857 struct ieee80211_tx_info *info; 2858 struct ieee80211_sta *sta; 2859 void *buf; 2860 int ac; 2861 2862 M_ASSERTPKTHDR(m); 2863 #ifdef LINUXKPI_DEBUG_80211 2864 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 2865 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2866 #endif 2867 2868 ni = lsta->ni; 2869 #ifndef TRY_HW_CRYPTO 2870 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2871 wh = mtod(m, struct ieee80211_frame *); 2872 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2873 /* Retrieve key for TX && do software encryption. */ 2874 k = ieee80211_crypto_encap(ni, m); 2875 if (k == NULL) { 2876 ieee80211_free_node(ni); 2877 m_freem(m); 2878 return; 2879 } 2880 } 2881 #endif 2882 2883 ic = ni->ni_ic; 2884 lhw = ic->ic_softc; 2885 hw = LHW_TO_HW(lhw); 2886 c = ni->ni_chan; 2887 2888 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 2889 struct lkpi_radiotap_tx_hdr *rtap; 2890 2891 rtap = &lhw->rtap_tx; 2892 rtap->wt_flags = 0; 2893 if (k != NULL) 2894 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2895 if (m->m_flags & M_FRAG) 2896 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 2897 IMPROVE(); 2898 rtap->wt_rate = 0; 2899 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 2900 rtap->wt_chan_freq = htole16(c->ic_freq); 2901 rtap->wt_chan_flags = htole16(c->ic_flags); 2902 } 2903 2904 ieee80211_radiotap_tx(ni->ni_vap, m); 2905 } 2906 2907 /* 2908 * net80211 should handle hw->extra_tx_headroom. 2909 * Though for as long as we are copying we don't mind. 2910 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 2911 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 2912 */ 2913 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 2914 if (skb == NULL) { 2915 printf("XXX ERROR %s: skb alloc failed\n", __func__); 2916 ieee80211_free_node(ni); 2917 m_freem(m); 2918 return; 2919 } 2920 skb_reserve(skb, hw->extra_tx_headroom); 2921 2922 /* XXX-BZ we need a SKB version understanding mbuf. */ 2923 /* Save the mbuf for ieee80211_tx_complete(). */ 2924 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 2925 skb->m = m; 2926 #if 0 2927 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 2928 #else 2929 buf = skb_put(skb, m->m_pkthdr.len); 2930 m_copydata(m, 0, m->m_pkthdr.len, buf); 2931 #endif 2932 /* Save the ni. */ 2933 m->m_pkthdr.PH_loc.ptr = ni; 2934 2935 lvif = VAP_TO_LVIF(ni->ni_vap); 2936 vif = LVIF_TO_VIF(lvif); 2937 2938 /* XXX-BZ review this at some point [4] vs. [8] vs. [16](TID). */ 2939 ac = M_WME_GETAC(m); 2940 skb->priority = WME_AC_TO_TID(ac); 2941 ac = lkpi_ac_net_to_l80211(ac); 2942 skb_set_queue_mapping(skb, ac); 2943 2944 info = IEEE80211_SKB_CB(skb); 2945 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 2946 /* Slight delay; probably only happens on scanning so fine? */ 2947 if (c == NULL || c == IEEE80211_CHAN_ANYC) 2948 c = ic->ic_curchan; 2949 info->band = lkpi_net80211_chan_to_nl80211_band(c); 2950 info->hw_queue = ac; /* XXX-BZ is this correct? */ 2951 if (m->m_flags & M_EAPOL) 2952 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 2953 info->control.vif = vif; 2954 /* XXX-BZ info->control.rates */ 2955 2956 lsta = lkpi_find_lsta_by_ni(lvif, ni); 2957 if (lsta != NULL) { 2958 sta = LSTA_TO_STA(lsta); 2959 #ifdef TRY_HW_CRYPTO 2960 info->control.hw_key = lsta->kc; 2961 #endif 2962 } else { 2963 sta = NULL; 2964 } 2965 2966 IMPROVE(); 2967 2968 if (sta != NULL) { 2969 struct lkpi_txq *ltxq; 2970 2971 ltxq = TXQ_TO_LTXQ(sta->txq[ac]); /* XXX-BZ re-check */ 2972 /* 2973 * We currently do not use queues but do direct TX. 2974 * The exception to the rule is initial packets, as we cannot 2975 * TX until queues are allocated (at least for iwlwifi). 2976 * So we wake_tx_queue in newstate and register any dequeue 2977 * calls. In the time until then we queue packets and 2978 * let the driver deal with them. 2979 */ 2980 if (!ltxq->seen_dequeue) { 2981 2982 /* Prevent an ordering problem, likely other issues. */ 2983 while (!skb_queue_empty(<xq->skbq)) { 2984 struct sk_buff *skb2; 2985 2986 skb2 = skb_dequeue(<xq->skbq); 2987 if (skb2 != NULL) { 2988 memset(&control, 0, sizeof(control)); 2989 control.sta = sta; 2990 lkpi_80211_mo_tx(hw, &control, skb2); 2991 } 2992 } 2993 goto ops_tx; 2994 } 2995 if (0 && ltxq->seen_dequeue && skb_queue_empty(<xq->skbq)) 2996 goto ops_tx; 2997 2998 skb_queue_tail(<xq->skbq, skb); 2999 #ifdef LINUXKPI_DEBUG_80211 3000 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3001 printf("%s:%d lsta %p sta %p ni %p %6D skb %p lxtq %p " 3002 "qlen %u WAKE_TX_Q ac %d prio %u qmap %u\n", 3003 __func__, __LINE__, lsta, sta, ni, 3004 ni->ni_macaddr, ":", skb, ltxq, 3005 skb_queue_len(<xq->skbq), ac, 3006 skb->priority, skb->qmap); 3007 #endif 3008 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[ac]); /* XXX-BZ */ 3009 return; 3010 } 3011 3012 ops_tx: 3013 #ifdef LINUXKPI_DEBUG_80211 3014 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3015 printf("%s:%d lsta %p sta %p ni %p %6D skb %p TX ac %d prio %u qmap %u\n", 3016 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3017 skb, ac, skb->priority, skb->qmap); 3018 #endif 3019 memset(&control, 0, sizeof(control)); 3020 control.sta = sta; 3021 3022 lkpi_80211_mo_tx(hw, &control, skb); 3023 return; 3024 } 3025 3026 static void 3027 lkpi_80211_txq_task(void *ctx, int pending) 3028 { 3029 struct lkpi_sta *lsta; 3030 struct mbufq mq; 3031 struct mbuf *m; 3032 3033 lsta = ctx; 3034 3035 #ifdef LINUXKPI_DEBUG_80211 3036 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3037 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3038 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3039 pending, mbufq_len(&lsta->txq)); 3040 #endif 3041 3042 mbufq_init(&mq, IFQ_MAXLEN); 3043 3044 LKPI_80211_LSTA_LOCK(lsta); 3045 mbufq_concat(&mq, &lsta->txq); 3046 LKPI_80211_LSTA_UNLOCK(lsta); 3047 3048 m = mbufq_dequeue(&mq); 3049 while (m != NULL) { 3050 lkpi_80211_txq_tx_one(lsta, m); 3051 m = mbufq_dequeue(&mq); 3052 } 3053 } 3054 3055 static int 3056 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3057 { 3058 3059 /* XXX TODO */ 3060 IMPROVE(); 3061 3062 /* Quick and dirty cheating hack. */ 3063 struct ieee80211_node *ni; 3064 3065 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3066 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3067 } 3068 3069 static void 3070 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3071 int *n, struct ieee80211_channel *c) 3072 { 3073 struct lkpi_hw *lhw; 3074 struct ieee80211_hw *hw; 3075 struct linuxkpi_ieee80211_channel *channels; 3076 uint8_t bands[IEEE80211_MODE_BYTES]; 3077 int chan_flags, error, i, nchans; 3078 3079 /* Channels */ 3080 lhw = ic->ic_softc; 3081 hw = LHW_TO_HW(lhw); 3082 3083 /* NL80211_BAND_2GHZ */ 3084 nchans = 0; 3085 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3086 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3087 if (nchans > 0) { 3088 memset(bands, 0, sizeof(bands)); 3089 chan_flags = 0; 3090 setbit(bands, IEEE80211_MODE_11B); 3091 /* XXX-BZ unclear how to check for 11g. */ 3092 setbit(bands, IEEE80211_MODE_11G); 3093 #ifdef __notyet__ 3094 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3095 setbit(bands, IEEE80211_MODE_11NG); 3096 chan_flags |= NET80211_CBW_FLAG_HT40; 3097 } 3098 #endif 3099 3100 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3101 for (i = 0; i < nchans && *n < maxchan; i++) { 3102 uint32_t nflags = 0; 3103 int cflags = chan_flags; 3104 3105 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3106 printf("%s: %s: Skipping disabled chan " 3107 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3108 channels[i].hw_value, 3109 channels[i].center_freq, channels[i].flags); 3110 continue; 3111 } 3112 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3113 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3114 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3115 nflags |= IEEE80211_CHAN_DFS; 3116 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3117 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3118 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3119 cflags &= ~NET80211_CBW_FLAG_VHT80; 3120 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3121 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3122 cflags &= ~NET80211_CBW_FLAG_HT40; 3123 3124 error = ieee80211_add_channel_cbw(c, maxchan, n, 3125 channels[i].hw_value, channels[i].center_freq, 3126 channels[i].max_power, 3127 nflags, bands, chan_flags); 3128 /* net80211::ENOBUFS: *n >= maxchans */ 3129 if (error != 0 && error != ENOBUFS) 3130 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3131 "returned error %d\n", ic->ic_name, 3132 __func__, channels[i].hw_value, 3133 channels[i].center_freq, channels[i].flags, 3134 nflags, chan_flags, cflags, error); 3135 if (error != 0) 3136 break; 3137 } 3138 } 3139 3140 /* NL80211_BAND_5GHZ */ 3141 nchans = 0; 3142 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3143 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3144 if (nchans > 0) { 3145 memset(bands, 0, sizeof(bands)); 3146 chan_flags = 0; 3147 setbit(bands, IEEE80211_MODE_11A); 3148 #ifdef __not_yet__ 3149 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3150 setbit(bands, IEEE80211_MODE_11NA); 3151 chan_flags |= NET80211_CBW_FLAG_HT40; 3152 } 3153 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3154 3155 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3156 ic->ic_vhtcaps = 3157 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3158 3159 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3160 chan_flags |= NET80211_CBW_FLAG_VHT80; 3161 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3162 ic->ic_vhtcaps)) 3163 chan_flags |= NET80211_CBW_FLAG_VHT160; 3164 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3165 ic->ic_vhtcaps)) 3166 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3167 } 3168 #endif 3169 3170 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3171 for (i = 0; i < nchans && *n < maxchan; i++) { 3172 uint32_t nflags = 0; 3173 int cflags = chan_flags; 3174 3175 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3176 printf("%s: %s: Skipping disabled chan " 3177 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3178 channels[i].hw_value, 3179 channels[i].center_freq, channels[i].flags); 3180 continue; 3181 } 3182 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3183 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3184 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3185 nflags |= IEEE80211_CHAN_DFS; 3186 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3187 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3188 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3189 cflags &= ~NET80211_CBW_FLAG_VHT80; 3190 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3191 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3192 cflags &= ~NET80211_CBW_FLAG_HT40; 3193 3194 error = ieee80211_add_channel_cbw(c, maxchan, n, 3195 channels[i].hw_value, channels[i].center_freq, 3196 channels[i].max_power, 3197 nflags, bands, chan_flags); 3198 /* net80211::ENOBUFS: *n >= maxchans */ 3199 if (error != 0 && error != ENOBUFS) 3200 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3201 "returned error %d\n", ic->ic_name, 3202 __func__, channels[i].hw_value, 3203 channels[i].center_freq, channels[i].flags, 3204 nflags, chan_flags, cflags, error); 3205 if (error != 0) 3206 break; 3207 } 3208 } 3209 } 3210 3211 static void * 3212 lkpi_ieee80211_ifalloc(void) 3213 { 3214 struct ieee80211com *ic; 3215 3216 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3217 if (ic == NULL) 3218 return (NULL); 3219 3220 /* Setting these happens later when we have device information. */ 3221 ic->ic_softc = NULL; 3222 ic->ic_name = "linuxkpi"; 3223 3224 return (ic); 3225 } 3226 3227 struct ieee80211_hw * 3228 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3229 { 3230 struct ieee80211_hw *hw; 3231 struct lkpi_hw *lhw; 3232 struct wiphy *wiphy; 3233 3234 /* Get us and the driver data also allocated. */ 3235 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3236 if (wiphy == NULL) 3237 return (NULL); 3238 3239 lhw = wiphy_priv(wiphy); 3240 lhw->ops = ops; 3241 3242 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 3243 TAILQ_INIT(&lhw->lvif_head); 3244 3245 /* 3246 * XXX-BZ TODO make sure there is a "_null" function to all ops 3247 * not initialized. 3248 */ 3249 hw = LHW_TO_HW(lhw); 3250 hw->wiphy = wiphy; 3251 hw->conf.flags |= IEEE80211_CONF_IDLE; 3252 hw->priv = (void *)(lhw + 1); 3253 3254 /* BSD Specific. */ 3255 lhw->ic = lkpi_ieee80211_ifalloc(); 3256 if (lhw->ic == NULL) { 3257 ieee80211_free_hw(hw); 3258 return (NULL); 3259 } 3260 3261 IMPROVE(); 3262 3263 return (hw); 3264 } 3265 3266 void 3267 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3268 { 3269 struct lkpi_hw *lhw; 3270 3271 lhw = HW_TO_LHW(hw); 3272 free(lhw->ic, M_LKPI80211); 3273 lhw->ic = NULL; 3274 3275 /* Cleanup more of lhw here or in wiphy_free()? */ 3276 mtx_destroy(&lhw->mtx); 3277 IMPROVE(); 3278 } 3279 3280 void 3281 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3282 { 3283 struct lkpi_hw *lhw; 3284 struct ieee80211com *ic; 3285 3286 lhw = HW_TO_LHW(hw); 3287 ic = lhw->ic; 3288 3289 /* Now set a proper name before ieee80211_ifattach(). */ 3290 ic->ic_softc = lhw; 3291 ic->ic_name = name; 3292 3293 /* XXX-BZ do we also need to set wiphy name? */ 3294 } 3295 3296 struct ieee80211_hw * 3297 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3298 { 3299 struct lkpi_hw *lhw; 3300 3301 lhw = wiphy_priv(wiphy); 3302 return (LHW_TO_HW(lhw)); 3303 } 3304 3305 static void 3306 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3307 { 3308 struct ieee80211com *ic; 3309 3310 ic = lhw->ic; 3311 ieee80211_radiotap_attach(ic, 3312 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3313 LKPI_RTAP_TX_FLAGS_PRESENT, 3314 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3315 LKPI_RTAP_RX_FLAGS_PRESENT); 3316 } 3317 3318 int 3319 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3320 { 3321 struct ieee80211com *ic; 3322 struct lkpi_hw *lhw; 3323 int band, i; 3324 3325 lhw = HW_TO_LHW(hw); 3326 ic = lhw->ic; 3327 3328 /* We do it this late as wiphy->dev should be set for the name. */ 3329 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3330 if (lhw->workq == NULL) 3331 return (-EAGAIN); 3332 3333 /* XXX-BZ figure this out how they count his... */ 3334 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3335 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3336 hw->wiphy->perm_addr); 3337 } else if (hw->wiphy->n_addresses > 0) { 3338 /* We take the first one. */ 3339 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3340 hw->wiphy->addresses[0].addr); 3341 } else { 3342 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3343 } 3344 3345 #ifdef __not_yet__ 3346 /* See comment in lkpi_80211_txq_tx_one(). */ 3347 ic->ic_headroom = hw->extra_tx_headroom; 3348 #endif 3349 3350 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3351 ic->ic_opmode = IEEE80211_M_STA; 3352 3353 /* Set device capabilities. */ 3354 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3355 ic->ic_caps = 3356 IEEE80211_C_STA | 3357 IEEE80211_C_MONITOR | 3358 IEEE80211_C_WPA | /* WPA/RSN */ 3359 IEEE80211_C_WME | 3360 #if 0 3361 IEEE80211_C_PMGT | 3362 #endif 3363 IEEE80211_C_SHSLOT | /* short slot time supported */ 3364 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3365 ; 3366 #if 0 3367 /* Scanning is a different kind of beast to re-work. */ 3368 ic->ic_caps |= IEEE80211_C_BGSCAN; 3369 #endif 3370 if (lhw->ops->hw_scan) { 3371 /* 3372 * Advertise full-offload scanning. 3373 * 3374 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3375 * we essentially disable hw_scan for all drivers not setting 3376 * the flag. 3377 */ 3378 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3379 } 3380 3381 #ifdef __notyet__ 3382 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3383 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3384 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3385 | IEEE80211_HTCAP_MAXAMSDU_3839 3386 /* max A-MSDU length */ 3387 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3388 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3389 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3390 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3391 #endif 3392 3393 ic->ic_cryptocaps = 0; 3394 #ifdef TRY_HW_CRYPTO 3395 if (hw->wiphy->n_cipher_suites > 0) { 3396 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3397 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3398 hw->wiphy->cipher_suites[i]); 3399 } 3400 #endif 3401 3402 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3403 ic->ic_channels); 3404 3405 ieee80211_ifattach(ic); 3406 3407 ic->ic_update_mcast = lkpi_ic_update_mcast; 3408 ic->ic_update_promisc = lkpi_ic_update_promisc; 3409 ic->ic_update_chw = lkpi_ic_update_chw; 3410 ic->ic_parent = lkpi_ic_parent; 3411 ic->ic_scan_start = lkpi_ic_scan_start; 3412 ic->ic_scan_end = lkpi_ic_scan_end; 3413 ic->ic_set_channel = lkpi_ic_set_channel; 3414 ic->ic_transmit = lkpi_ic_transmit; 3415 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3416 ic->ic_vap_create = lkpi_ic_vap_create; 3417 ic->ic_vap_delete = lkpi_ic_vap_delete; 3418 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3419 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3420 3421 lhw->ic_node_alloc = ic->ic_node_alloc; 3422 ic->ic_node_alloc = lkpi_ic_node_alloc; 3423 lhw->ic_node_init = ic->ic_node_init; 3424 ic->ic_node_init = lkpi_ic_node_init; 3425 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3426 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3427 lhw->ic_node_free = ic->ic_node_free; 3428 ic->ic_node_free = lkpi_ic_node_free; 3429 3430 lkpi_radiotap_attach(lhw); 3431 3432 /* 3433 * Assign the first possible channel for now; seems Realtek drivers 3434 * expect one. 3435 */ 3436 for (band = 0; band < NUM_NL80211_BANDS && 3437 hw->conf.chandef.chan == NULL; band++) { 3438 struct ieee80211_supported_band *supband; 3439 struct linuxkpi_ieee80211_channel *channels; 3440 3441 supband = hw->wiphy->bands[band]; 3442 if (supband == NULL || supband->n_channels == 0) 3443 continue; 3444 3445 channels = supband->channels; 3446 for (i = 0; i < supband->n_channels; i++) { 3447 3448 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3449 continue; 3450 3451 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3452 NL80211_CHAN_NO_HT); 3453 break; 3454 } 3455 } 3456 3457 if (bootverbose) 3458 ieee80211_announce(ic); 3459 3460 return (0); 3461 } 3462 3463 void 3464 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3465 { 3466 struct lkpi_hw *lhw; 3467 struct ieee80211com *ic; 3468 3469 lhw = HW_TO_LHW(hw); 3470 ic = lhw->ic; 3471 ieee80211_ifdetach(ic); 3472 } 3473 3474 void 3475 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3476 enum ieee80211_iface_iter flags, 3477 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3478 void *arg) 3479 { 3480 struct lkpi_hw *lhw; 3481 struct lkpi_vif *lvif; 3482 struct ieee80211_vif *vif; 3483 bool active, atomic, nin_drv; 3484 3485 lhw = HW_TO_LHW(hw); 3486 3487 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3488 IEEE80211_IFACE_ITER_RESUME_ALL| 3489 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3490 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3491 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3492 __func__, flags); 3493 } 3494 3495 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3496 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3497 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3498 3499 if (atomic) 3500 LKPI_80211_LHW_LOCK(lhw); 3501 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3502 struct ieee80211vap *vap; 3503 3504 vif = LVIF_TO_VIF(lvif); 3505 3506 /* 3507 * If we want "active" interfaces, we need to distinguish on 3508 * whether the driver knows about them or not to be able to 3509 * handle the "resume" case correctly. Skip the ones the 3510 * driver does not know about. 3511 */ 3512 if (active && !lvif->added_to_drv && 3513 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3514 continue; 3515 3516 /* 3517 * If we shall skip interfaces not added to the driver do so 3518 * if we haven't yet. 3519 */ 3520 if (nin_drv && !lvif->added_to_drv) 3521 continue; 3522 3523 /* 3524 * Run the iterator function if we are either not asking 3525 * asking for active only or if the VAP is "running". 3526 */ 3527 /* XXX-BZ probably should have state in the lvif as well. */ 3528 vap = LVIF_TO_VAP(lvif); 3529 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3530 iterfunc(arg, vif->addr, vif); 3531 } 3532 if (atomic) 3533 LKPI_80211_LHW_UNLOCK(lhw); 3534 } 3535 3536 void 3537 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3538 struct ieee80211_vif *vif, 3539 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3540 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3541 void *arg) 3542 { 3543 3544 UNIMPLEMENTED; 3545 } 3546 3547 void 3548 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3549 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3550 void *), 3551 void *arg) 3552 { 3553 3554 UNIMPLEMENTED; 3555 } 3556 3557 void 3558 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3559 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3560 { 3561 struct lkpi_hw *lhw; 3562 struct lkpi_vif *lvif; 3563 struct lkpi_sta *lsta; 3564 struct ieee80211_sta *sta; 3565 3566 KASSERT(hw != NULL && iterfunc != NULL, 3567 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3568 3569 lhw = HW_TO_LHW(hw); 3570 3571 LKPI_80211_LHW_LOCK(lhw); 3572 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3573 3574 LKPI_80211_LVIF_LOCK(lvif); 3575 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3576 if (!lsta->added_to_drv) 3577 continue; 3578 sta = LSTA_TO_STA(lsta); 3579 iterfunc(arg, sta); 3580 } 3581 LKPI_80211_LVIF_UNLOCK(lvif); 3582 } 3583 LKPI_80211_LHW_UNLOCK(lhw); 3584 } 3585 3586 int 3587 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3588 struct linuxkpi_ieee80211_regdomain *regd) 3589 { 3590 struct lkpi_hw *lhw; 3591 struct ieee80211com *ic; 3592 struct ieee80211_regdomain *rd; 3593 3594 lhw = wiphy_priv(wiphy); 3595 ic = lhw->ic; 3596 3597 rd = &ic->ic_regdomain; 3598 if (rd->isocc[0] == '\0') { 3599 rd->isocc[0] = regd->alpha2[0]; 3600 rd->isocc[1] = regd->alpha2[1]; 3601 } 3602 3603 TODO(); 3604 /* XXX-BZ finish the rest. */ 3605 3606 return (0); 3607 } 3608 3609 void 3610 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3611 struct cfg80211_scan_info *info) 3612 { 3613 struct lkpi_hw *lhw; 3614 struct ieee80211com *ic; 3615 struct ieee80211_scan_state *ss; 3616 3617 lhw = wiphy_priv(hw->wiphy); 3618 ic = lhw->ic; 3619 ss = ic->ic_scan; 3620 3621 ieee80211_scan_done(ss->ss_vap); 3622 3623 LKPI_80211_LHW_LOCK(lhw); 3624 free(lhw->hw_req->ies.common_ies, M_80211_VAP); 3625 free(lhw->hw_req, M_LKPI80211); 3626 lhw->hw_req = NULL; 3627 lhw->scan_flags &= ~LKPI_SCAN_RUNNING; 3628 wakeup(lhw); 3629 LKPI_80211_LHW_UNLOCK(lhw); 3630 3631 return; 3632 } 3633 3634 void 3635 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3636 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3637 { 3638 struct epoch_tracker et; 3639 struct lkpi_hw *lhw; 3640 struct ieee80211com *ic; 3641 struct mbuf *m; 3642 struct skb_shared_info *shinfo; 3643 struct ieee80211_rx_status *rx_status; 3644 struct ieee80211_rx_stats rx_stats; 3645 struct ieee80211_node *ni; 3646 struct ieee80211vap *vap; 3647 struct ieee80211_hdr *hdr; 3648 struct lkpi_sta *lsta; 3649 int i, offset, ok; 3650 bool is_beacon; 3651 3652 if (skb->len < 2) { 3653 /* Need 80211 stats here. */ 3654 IMPROVE(); 3655 goto err; 3656 } 3657 3658 /* 3659 * For now do the data copy; we can later improve things. Might even 3660 * have an mbuf backing the skb data then? 3661 */ 3662 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3663 if (m == NULL) 3664 goto err; 3665 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3666 3667 shinfo = skb_shinfo(skb); 3668 offset = m->m_len; 3669 for (i = 0; i < shinfo->nr_frags; i++) { 3670 m_copyback(m, offset, shinfo->frags[i].size, 3671 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3672 shinfo->frags[i].offset); 3673 offset += shinfo->frags[i].size; 3674 } 3675 3676 rx_status = IEEE80211_SKB_RXCB(skb); 3677 3678 hdr = (void *)skb->data; 3679 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3680 3681 #ifdef LINUXKPI_DEBUG_80211 3682 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3683 goto no_trace_beacons; 3684 3685 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3686 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3687 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3688 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3689 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3690 shinfo, shinfo->nr_frags, 3691 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 3692 3693 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 3694 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3695 3696 /* Implement a dump_rxcb() !!! */ 3697 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3698 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 3699 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 3700 __func__, 3701 (uintmax_t)rx_status->boottime_ns, 3702 (uintmax_t)rx_status->mactime, 3703 rx_status->device_timestamp, 3704 rx_status->flag, 3705 rx_status->freq, 3706 rx_status->bw, 3707 rx_status->encoding, 3708 rx_status->ampdu_reference, 3709 rx_status->band, 3710 rx_status->chains, 3711 rx_status->chain_signal[0], 3712 rx_status->chain_signal[1], 3713 rx_status->chain_signal[2], 3714 rx_status->chain_signal[3], 3715 rx_status->signal, 3716 rx_status->enc_flags, 3717 rx_status->he_dcm, 3718 rx_status->he_gi, 3719 rx_status->he_ru, 3720 rx_status->zero_length_psdu_type, 3721 rx_status->nss, 3722 rx_status->rate_idx); 3723 no_trace_beacons: 3724 #endif 3725 3726 memset(&rx_stats, 0, sizeof(rx_stats)); 3727 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3728 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 3729 rx_stats.c_nf = -96; 3730 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3731 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3732 rx_stats.c_rssi = rx_status->signal; 3733 else 3734 rx_stats.c_rssi = 0; 3735 rx_stats.c_rssi -= rx_stats.c_nf; 3736 rx_stats.r_flags |= IEEE80211_R_BAND; 3737 rx_stats.c_band = 3738 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3739 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3740 rx_stats.c_freq = rx_status->freq; 3741 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3742 3743 /* XXX (*sta_statistics)() to get to some of that? */ 3744 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3745 3746 lhw = HW_TO_LHW(hw); 3747 ic = lhw->ic; 3748 3749 ok = ieee80211_add_rx_params(m, &rx_stats); 3750 if (ok == 0) { 3751 counter_u64_add(ic->ic_ierrors, 1); 3752 goto err; 3753 } 3754 3755 if (sta != NULL) { 3756 lsta = STA_TO_LSTA(sta); 3757 ni = ieee80211_ref_node(lsta->ni); 3758 } else { 3759 struct ieee80211_frame_min *wh; 3760 3761 wh = mtod(m, struct ieee80211_frame_min *); 3762 ni = ieee80211_find_rxnode(ic, wh); 3763 if (ni != NULL) 3764 lsta = ni->ni_drv_data; 3765 } 3766 3767 if (ni != NULL) 3768 vap = ni->ni_vap; 3769 else 3770 /* 3771 * XXX-BZ can we improve this by looking at the frame hdr 3772 * or other meta-data passed up? 3773 */ 3774 vap = TAILQ_FIRST(&ic->ic_vaps); 3775 3776 #ifdef LINUXKPI_DEBUG_80211 3777 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3778 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 3779 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 3780 ni, vap, is_beacon ? " beacon" : ""); 3781 #endif 3782 3783 if (ni != NULL && vap != NULL && is_beacon && 3784 rx_status->device_timestamp > 0 && 3785 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 3786 struct lkpi_vif *lvif; 3787 struct ieee80211_vif *vif; 3788 struct ieee80211_frame *wh; 3789 3790 wh = mtod(m, struct ieee80211_frame *); 3791 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 3792 goto skip_device_ts; 3793 3794 lvif = VAP_TO_LVIF(vap); 3795 vif = LVIF_TO_VIF(lvif); 3796 3797 IMPROVE("TIMING_BEACON_ONLY?"); 3798 /* mac80211 specific (not net80211) so keep it here. */ 3799 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 3800 /* 3801 * net80211 should take care of the other information (sync_tsf, 3802 * sync_dtim_count) as otherwise we need to parse the beacon. 3803 */ 3804 } 3805 skip_device_ts: 3806 3807 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3808 ieee80211_radiotap_active_vap(vap)) { 3809 struct lkpi_radiotap_rx_hdr *rtap; 3810 3811 rtap = &lhw->rtap_rx; 3812 rtap->wr_tsft = rx_status->device_timestamp; 3813 rtap->wr_flags = 0; 3814 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 3815 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3816 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3817 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 3818 #if 0 /* .. or it does not given we strip it below. */ 3819 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3820 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 3821 #endif 3822 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 3823 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 3824 rtap->wr_rate = 0; 3825 IMPROVE(); 3826 /* XXX TODO status->encoding / rate_index / bw */ 3827 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 3828 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 3829 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 3830 rtap->wr_dbm_antsignal = rx_stats.c_rssi; 3831 rtap->wr_dbm_antnoise = rx_stats.c_nf; 3832 } 3833 3834 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3835 m_adj(m, -IEEE80211_CRC_LEN); 3836 3837 NET_EPOCH_ENTER(et); 3838 if (ni != NULL) { 3839 ok = ieee80211_input_mimo(ni, m); 3840 ieee80211_free_node(ni); 3841 } else { 3842 ok = ieee80211_input_mimo_all(ic, m); 3843 } 3844 NET_EPOCH_EXIT(et); 3845 3846 #ifdef LINUXKPI_DEBUG_80211 3847 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3848 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 3849 #endif 3850 3851 IMPROVE(); 3852 3853 err: 3854 /* The skb is ours so we can free it :-) */ 3855 kfree_skb(skb); 3856 } 3857 3858 uint8_t 3859 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr) 3860 { 3861 const struct ieee80211_frame *wh; 3862 3863 wh = (const struct ieee80211_frame *)hdr; 3864 return (ieee80211_gettid(wh)); 3865 } 3866 3867 struct wiphy * 3868 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 3869 { 3870 struct lkpi_wiphy *lwiphy; 3871 3872 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 3873 if (lwiphy == NULL) 3874 return (NULL); 3875 lwiphy->ops = ops; 3876 3877 /* XXX TODO */ 3878 return (LWIPHY_TO_WIPHY(lwiphy)); 3879 } 3880 3881 void 3882 linuxkpi_wiphy_free(struct wiphy *wiphy) 3883 { 3884 struct lkpi_wiphy *lwiphy; 3885 3886 if (wiphy == NULL) 3887 return; 3888 3889 lwiphy = WIPHY_TO_LWIPHY(wiphy); 3890 kfree(lwiphy); 3891 } 3892 3893 uint32_t 3894 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 3895 enum nl80211_band band) 3896 { 3897 3898 switch (band) { 3899 case NL80211_BAND_2GHZ: 3900 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 3901 break; 3902 case NL80211_BAND_5GHZ: 3903 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 3904 break; 3905 default: 3906 /* XXX abort, retry, error, panic? */ 3907 break; 3908 } 3909 3910 return (0); 3911 } 3912 3913 uint32_t 3914 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 3915 { 3916 3917 return (ieee80211_mhz2ieee(freq, 0)); 3918 } 3919 3920 static struct lkpi_sta * 3921 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 3922 { 3923 struct lkpi_sta *lsta, *temp; 3924 3925 LKPI_80211_LVIF_LOCK(lvif); 3926 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 3927 if (lsta->ni == ni) { 3928 LKPI_80211_LVIF_UNLOCK(lvif); 3929 return (lsta); 3930 } 3931 } 3932 LKPI_80211_LVIF_UNLOCK(lvif); 3933 3934 return (NULL); 3935 } 3936 3937 struct ieee80211_sta * 3938 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 3939 { 3940 struct lkpi_vif *lvif; 3941 struct lkpi_sta *lsta, *temp; 3942 struct ieee80211_sta *sta; 3943 3944 lvif = VIF_TO_LVIF(vif); 3945 3946 LKPI_80211_LVIF_LOCK(lvif); 3947 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 3948 sta = LSTA_TO_STA(lsta); 3949 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 3950 LKPI_80211_LVIF_UNLOCK(lvif); 3951 return (sta); 3952 } 3953 } 3954 LKPI_80211_LVIF_UNLOCK(lvif); 3955 return (NULL); 3956 } 3957 3958 struct ieee80211_sta * 3959 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 3960 const uint8_t *addr, const uint8_t *ourvifaddr) 3961 { 3962 struct lkpi_hw *lhw; 3963 struct lkpi_vif *lvif; 3964 struct lkpi_sta *lsta; 3965 struct ieee80211_vif *vif; 3966 struct ieee80211_sta *sta; 3967 3968 lhw = wiphy_priv(hw->wiphy); 3969 sta = NULL; 3970 3971 LKPI_80211_LHW_LOCK(lhw); 3972 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3973 3974 /* XXX-BZ check our address from the vif. */ 3975 3976 vif = LVIF_TO_VIF(lvif); 3977 if (ourvifaddr != NULL && 3978 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 3979 continue; 3980 sta = linuxkpi_ieee80211_find_sta(vif, addr); 3981 if (sta != NULL) 3982 break; 3983 } 3984 LKPI_80211_LHW_UNLOCK(lhw); 3985 3986 if (sta != NULL) { 3987 lsta = STA_TO_LSTA(sta); 3988 if (!lsta->added_to_drv) 3989 return (NULL); 3990 } 3991 3992 return (sta); 3993 } 3994 3995 struct sk_buff * 3996 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 3997 struct ieee80211_txq *txq) 3998 { 3999 struct lkpi_txq *ltxq; 4000 struct sk_buff *skb; 4001 4002 ltxq = TXQ_TO_LTXQ(txq); 4003 ltxq->seen_dequeue = true; 4004 4005 skb = skb_dequeue(<xq->skbq); 4006 4007 return (skb); 4008 } 4009 4010 void 4011 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4012 unsigned long *frame_cnt, unsigned long *byte_cnt) 4013 { 4014 struct lkpi_txq *ltxq; 4015 struct sk_buff *skb; 4016 unsigned long fc, bc; 4017 4018 ltxq = TXQ_TO_LTXQ(txq); 4019 4020 fc = bc = 0; 4021 skb_queue_walk(<xq->skbq, skb) { 4022 fc++; 4023 bc += skb->len; 4024 } 4025 if (frame_cnt) 4026 *frame_cnt = fc; 4027 if (byte_cnt) 4028 *byte_cnt = bc; 4029 4030 /* Validate that this is doing the correct thing. */ 4031 /* Should we keep track on en/dequeue? */ 4032 IMPROVE(); 4033 } 4034 4035 /* 4036 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4037 * The latter tries to derive the success status from the info flags 4038 * passed back from the driver. rawx_mit() saves the ni on the m and the 4039 * m on the skb for us to be able to give feedback to net80211. 4040 */ 4041 void 4042 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4043 int status) 4044 { 4045 struct ieee80211_node *ni; 4046 struct mbuf *m; 4047 4048 m = skb->m; 4049 skb->m = NULL; 4050 4051 if (m != NULL) { 4052 ni = m->m_pkthdr.PH_loc.ptr; 4053 /* Status: 0 is ok, != 0 is error. */ 4054 ieee80211_tx_complete(ni, m, status); 4055 /* ni & mbuf were consumed. */ 4056 } 4057 4058 kfree_skb(skb); 4059 } 4060 4061 /* 4062 * This is an internal bandaid for the moment for the way we glue 4063 * skbs and mbufs together for TX. Once we have skbs backed by 4064 * mbufs this should go away. 4065 * This is a public function but kept on the private KPI (lkpi_) 4066 * and is not exposed by a header file. 4067 */ 4068 static void 4069 lkpi_ieee80211_free_skb_mbuf(void *p) 4070 { 4071 struct ieee80211_node *ni; 4072 struct mbuf *m; 4073 4074 if (p == NULL) 4075 return; 4076 4077 m = (struct mbuf *)p; 4078 M_ASSERTPKTHDR(m); 4079 4080 ni = m->m_pkthdr.PH_loc.ptr; 4081 m->m_pkthdr.PH_loc.ptr = NULL; 4082 if (ni != NULL) 4083 ieee80211_free_node(ni); 4084 m_freem(m); 4085 } 4086 4087 void 4088 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4089 struct delayed_work *w, int delay) 4090 { 4091 struct lkpi_hw *lhw; 4092 4093 /* Need to make sure hw is in a stable (non-suspended) state. */ 4094 IMPROVE(); 4095 4096 lhw = HW_TO_LHW(hw); 4097 queue_delayed_work(lhw->workq, w, delay); 4098 } 4099 4100 void 4101 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4102 struct work_struct *w) 4103 { 4104 struct lkpi_hw *lhw; 4105 4106 /* Need to make sure hw is in a stable (non-suspended) state. */ 4107 IMPROVE(); 4108 4109 lhw = HW_TO_LHW(hw); 4110 queue_work(lhw->workq, w); 4111 } 4112 4113 struct sk_buff * 4114 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4115 struct ieee80211_vif *vif) 4116 { 4117 struct lkpi_vif *lvif; 4118 struct ieee80211vap *vap; 4119 struct sk_buff *skb; 4120 struct ieee80211_frame_pspoll *psp; 4121 uint16_t v; 4122 4123 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4124 if (skb == NULL) 4125 return (NULL); 4126 4127 skb_reserve(skb, hw->extra_tx_headroom); 4128 4129 lvif = VIF_TO_LVIF(vif); 4130 vap = LVIF_TO_VAP(lvif); 4131 4132 psp = skb_put_zero(skb, sizeof(*psp)); 4133 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4134 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4135 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4136 memcpy(&psp->i_aid, &v, sizeof(v)); 4137 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4138 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4139 4140 return (skb); 4141 } 4142 4143 struct sk_buff * 4144 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4145 struct ieee80211_vif *vif, bool qos) 4146 { 4147 struct lkpi_vif *lvif; 4148 struct ieee80211vap *vap; 4149 struct sk_buff *skb; 4150 struct ieee80211_frame *nullf; 4151 4152 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4153 if (skb == NULL) 4154 return (NULL); 4155 4156 skb_reserve(skb, hw->extra_tx_headroom); 4157 4158 lvif = VIF_TO_LVIF(vif); 4159 vap = LVIF_TO_VAP(lvif); 4160 4161 nullf = skb_put_zero(skb, sizeof(*nullf)); 4162 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4163 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4164 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4165 4166 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4167 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4168 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4169 4170 return (skb); 4171 } 4172 4173 struct wireless_dev * 4174 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4175 { 4176 struct lkpi_vif *lvif; 4177 4178 lvif = VIF_TO_LVIF(vif); 4179 return (&lvif->wdev); 4180 } 4181 4182 void 4183 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4184 { 4185 struct lkpi_vif *lvif; 4186 struct ieee80211vap *vap; 4187 enum ieee80211_state nstate; 4188 int arg; 4189 4190 lvif = VIF_TO_LVIF(vif); 4191 vap = LVIF_TO_VAP(lvif); 4192 4193 /* 4194 * Go to init; otherwise we need to elaborately check state and 4195 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4196 * Let the statemachine handle all neccessary changes. 4197 */ 4198 nstate = IEEE80211_S_INIT; 4199 arg = 0; /* Not a valid reason. */ 4200 4201 #ifdef LINUXKPI_DEBUG_80211 4202 if (linuxkpi_debug_80211 & D80211_TRACE) 4203 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4204 #endif 4205 ieee80211_new_state(vap, nstate, arg); 4206 } 4207 4208 void 4209 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4210 { 4211 struct lkpi_vif *lvif; 4212 struct ieee80211vap *vap; 4213 enum ieee80211_state nstate; 4214 int arg; 4215 4216 lvif = VIF_TO_LVIF(vif); 4217 vap = LVIF_TO_VAP(lvif); 4218 4219 /* 4220 * Go to scan; otherwise we need to elaborately check state and 4221 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4222 * Let the statemachine handle all neccessary changes. 4223 */ 4224 nstate = IEEE80211_S_SCAN; 4225 arg = 0; 4226 4227 /* We should be in RUN. Can we assert that? */ 4228 #ifdef LINUXKPI_DEBUG_80211 4229 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4230 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4231 vif, vap, ieee80211_state_name[vap->iv_state]); 4232 #endif 4233 ieee80211_new_state(vap, nstate, arg); 4234 } 4235 4236 MODULE_VERSION(linuxkpi_wlan, 1); 4237 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 4238 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 4239