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 if (ni != NULL) 183 ieee80211_free_node(ni); 184 185 IMPROVE("more from lkpi_ic_node_free() should happen here."); 186 187 free(lsta, M_LKPI80211); 188 } 189 190 static struct lkpi_sta * 191 lkpi_lsta_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN], 192 struct ieee80211_hw *hw, struct ieee80211_node *ni) 193 { 194 struct lkpi_sta *lsta; 195 struct lkpi_vif *lvif; 196 struct ieee80211_vif *vif; 197 struct ieee80211_sta *sta; 198 int tid; 199 200 lsta = malloc(sizeof(*lsta) + hw->sta_data_size, M_LKPI80211, 201 M_NOWAIT | M_ZERO); 202 if (lsta == NULL) 203 return (NULL); 204 205 lsta->added_to_drv = false; 206 lsta->state = IEEE80211_STA_NOTEXIST; 207 #if 0 208 /* 209 * This needs to be done in node_init() as ieee80211_alloc_node() 210 * will initialise the refcount after us. 211 */ 212 lsta->ni = ieee80211_ref_node(ni); 213 #endif 214 /* The back-pointer "drv_data" to net80211_node let's us get lsta. */ 215 ni->ni_drv_data = lsta; 216 217 lvif = VAP_TO_LVIF(vap); 218 vif = LVIF_TO_VIF(lvif); 219 sta = LSTA_TO_STA(lsta); 220 221 IEEE80211_ADDR_COPY(sta->addr, mac); 222 for (tid = 0; tid < nitems(sta->txq); tid++) { 223 struct lkpi_txq *ltxq; 224 225 /* We are not limiting ourselves to hw.queues here. */ 226 ltxq = malloc(sizeof(*ltxq) + hw->txq_data_size, 227 M_LKPI80211, M_NOWAIT | M_ZERO); 228 if (ltxq == NULL) 229 goto cleanup; 230 /* iwlwifi//mvm/sta.c::tid_to_mac80211_ac[] */ 231 if (tid == IEEE80211_NUM_TIDS) { 232 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) { 233 free(ltxq, M_LKPI80211); 234 continue; 235 } 236 IMPROVE("AP/if we support non-STA here too"); 237 ltxq->txq.ac = IEEE80211_AC_VO; 238 } else { 239 ltxq->txq.ac = tid_to_mac80211_ac[tid & 7]; 240 } 241 ltxq->seen_dequeue = false; 242 ltxq->txq.vif = vif; 243 ltxq->txq.tid = tid; 244 ltxq->txq.sta = sta; 245 skb_queue_head_init(<xq->skbq); 246 sta->txq[tid] = <xq->txq; 247 } 248 249 /* Deferred TX path. */ 250 mtx_init(&lsta->txq_mtx, "lsta_txq", NULL, MTX_DEF); 251 TASK_INIT(&lsta->txq_task, 0, lkpi_80211_txq_task, lsta); 252 mbufq_init(&lsta->txq, IFQ_MAXLEN); 253 254 return (lsta); 255 256 cleanup: 257 for (; tid >= 0; tid--) 258 free(sta->txq[tid], M_LKPI80211); 259 free(lsta, M_LKPI80211); 260 return (NULL); 261 } 262 263 static enum nl80211_band 264 lkpi_net80211_chan_to_nl80211_band(struct ieee80211_channel *c) 265 { 266 267 if (IEEE80211_IS_CHAN_2GHZ(c)) 268 return (NL80211_BAND_2GHZ); 269 else if (IEEE80211_IS_CHAN_5GHZ(c)) 270 return (NL80211_BAND_5GHZ); 271 #ifdef __notyet__ 272 else if () 273 return (NL80211_BAND_6GHZ); 274 else if () 275 return (NL80211_BAND_60GHZ); 276 else if (IEEE80211_IS_CHAN_GSM(c)) 277 return (NL80211_BAND_XXX); 278 #endif 279 else 280 panic("%s: unsupported band. c %p flags %#x\n", 281 __func__, c, c->ic_flags); 282 } 283 284 static uint32_t 285 lkpi_nl80211_band_to_net80211_band(enum nl80211_band band) 286 { 287 288 /* XXX-BZ this is just silly; net80211 is too convoluted. */ 289 /* IEEE80211_CHAN_A / _G / .. doesn't really work either. */ 290 switch (band) { 291 case NL80211_BAND_2GHZ: 292 return (IEEE80211_CHAN_2GHZ); 293 break; 294 case NL80211_BAND_5GHZ: 295 return (IEEE80211_CHAN_5GHZ); 296 break; 297 case NL80211_BAND_60GHZ: 298 break; 299 case NL80211_BAND_6GHZ: 300 break; 301 default: 302 panic("%s: unsupported band %u\n", __func__, band); 303 break; 304 } 305 306 IMPROVE(); 307 return (0x00); 308 } 309 310 static enum ieee80211_ac_numbers 311 lkpi_ac_net_to_l80211(int ac) 312 { 313 314 switch (ac) { 315 case WME_AC_VO: 316 return (IEEE80211_AC_VO); 317 case WME_AC_VI: 318 return (IEEE80211_AC_VI); 319 case WME_AC_BE: 320 return (IEEE80211_AC_BE); 321 case WME_AC_BK: 322 return (IEEE80211_AC_BK); 323 default: 324 printf("%s: invalid WME_AC_* input: ac = %d\n", __func__, ac); 325 return (IEEE80211_AC_BE); 326 } 327 } 328 329 static enum nl80211_iftype 330 lkpi_opmode_to_vif_type(enum ieee80211_opmode opmode) 331 { 332 333 switch (opmode) { 334 case IEEE80211_M_IBSS: 335 return (NL80211_IFTYPE_ADHOC); 336 break; 337 case IEEE80211_M_STA: 338 return (NL80211_IFTYPE_STATION); 339 break; 340 case IEEE80211_M_WDS: 341 return (NL80211_IFTYPE_WDS); 342 break; 343 case IEEE80211_M_HOSTAP: 344 return (NL80211_IFTYPE_AP); 345 break; 346 case IEEE80211_M_MONITOR: 347 return (NL80211_IFTYPE_MONITOR); 348 break; 349 case IEEE80211_M_MBSS: 350 return (NL80211_IFTYPE_MESH_POINT); 351 break; 352 case IEEE80211_M_AHDEMO: 353 /* FALLTHROUGH */ 354 default: 355 printf("ERROR: %s: unsupported opmode %d\n", __func__, opmode); 356 /* FALLTHROUGH */ 357 } 358 return (NL80211_IFTYPE_UNSPECIFIED); 359 } 360 361 #ifdef __notyet__ 362 static uint32_t 363 lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite) 364 { 365 366 switch (wlan_cipher_suite) { 367 case WLAN_CIPHER_SUITE_WEP40: 368 return (IEEE80211_CRYPTO_WEP); 369 case WLAN_CIPHER_SUITE_TKIP: 370 return (IEEE80211_CRYPTO_TKIP); 371 case WLAN_CIPHER_SUITE_CCMP: 372 return (IEEE80211_CIPHER_AES_CCM); 373 case WLAN_CIPHER_SUITE_WEP104: 374 return (IEEE80211_CRYPTO_WEP); 375 case WLAN_CIPHER_SUITE_AES_CMAC: 376 case WLAN_CIPHER_SUITE_GCMP: 377 case WLAN_CIPHER_SUITE_GCMP_256: 378 case WLAN_CIPHER_SUITE_CCMP_256: 379 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 380 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 381 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 382 printf("%s: unsupported WLAN Cipher Suite %#08x | %u\n", __func__, 383 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 384 break; 385 default: 386 printf("%s: unknown WLAN Cipher Suite %#08x | %u\n", __func__, 387 wlan_cipher_suite >> 8, wlan_cipher_suite & 0xff); 388 } 389 390 return (0); 391 } 392 #endif 393 394 #ifdef TRY_HW_CRYPTO 395 static uint32_t 396 lkpi_net80211_to_l80211_cipher_suite(uint32_t cipher, uint8_t keylen) 397 { 398 399 switch (cipher) { 400 case IEEE80211_CIPHER_TKIP: 401 return (WLAN_CIPHER_SUITE_TKIP); 402 case IEEE80211_CIPHER_AES_CCM: 403 return (WLAN_CIPHER_SUITE_CCMP); 404 case IEEE80211_CIPHER_WEP: 405 if (keylen < 8) 406 return (WLAN_CIPHER_SUITE_WEP40); 407 else 408 return (WLAN_CIPHER_SUITE_WEP104); 409 break; 410 case IEEE80211_CIPHER_AES_OCB: 411 case IEEE80211_CIPHER_TKIPMIC: 412 case IEEE80211_CIPHER_CKIP: 413 case IEEE80211_CIPHER_NONE: 414 printf("%s: unsupported cipher %#010x\n", __func__, cipher); 415 break; 416 default: 417 printf("%s: unknown cipher %#010x\n", __func__, cipher); 418 }; 419 return (0); 420 } 421 #endif 422 423 #ifdef __notyet__ 424 static enum ieee80211_sta_state 425 lkpi_net80211_state_to_sta_state(enum ieee80211_state state) 426 { 427 428 /* 429 * XXX-BZ The net80211 states are "try to ..", the lkpi8011 states are 430 * "done". Also ASSOC/AUTHORIZED are both "RUN" then? 431 */ 432 switch (state) { 433 case IEEE80211_S_INIT: 434 return (IEEE80211_STA_NOTEXIST); 435 case IEEE80211_S_SCAN: 436 return (IEEE80211_STA_NONE); 437 case IEEE80211_S_AUTH: 438 return (IEEE80211_STA_AUTH); 439 case IEEE80211_S_ASSOC: 440 return (IEEE80211_STA_ASSOC); 441 case IEEE80211_S_RUN: 442 return (IEEE80211_STA_AUTHORIZED); 443 case IEEE80211_S_CAC: 444 case IEEE80211_S_CSA: 445 case IEEE80211_S_SLEEP: 446 default: 447 UNIMPLEMENTED; 448 }; 449 450 return (IEEE80211_STA_NOTEXIST); 451 } 452 #endif 453 454 static struct linuxkpi_ieee80211_channel * 455 lkpi_find_lkpi80211_chan(struct lkpi_hw *lhw, 456 struct ieee80211_channel *c) 457 { 458 struct ieee80211_hw *hw; 459 struct linuxkpi_ieee80211_channel *channels; 460 enum nl80211_band band; 461 int i, nchans; 462 463 hw = LHW_TO_HW(lhw); 464 band = lkpi_net80211_chan_to_nl80211_band(c); 465 if (hw->wiphy->bands[band] == NULL) 466 return (NULL); 467 468 nchans = hw->wiphy->bands[band]->n_channels; 469 if (nchans <= 0) 470 return (NULL); 471 472 channels = hw->wiphy->bands[band]->channels; 473 for (i = 0; i < nchans; i++) { 474 if (channels[i].hw_value == c->ic_ieee) 475 return (&channels[i]); 476 } 477 478 return (NULL); 479 } 480 481 static struct linuxkpi_ieee80211_channel * 482 lkpi_get_lkpi80211_chan(struct ieee80211com *ic, struct ieee80211_node *ni) 483 { 484 struct linuxkpi_ieee80211_channel *chan; 485 struct ieee80211_channel *c; 486 struct lkpi_hw *lhw; 487 488 chan = NULL; 489 if (ni != NULL && ni->ni_chan != IEEE80211_CHAN_ANYC) 490 c = ni->ni_chan; 491 else if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) 492 c = ic->ic_bsschan; 493 else if (ic->ic_curchan != IEEE80211_CHAN_ANYC) 494 c = ic->ic_curchan; 495 else 496 c = NULL; 497 498 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 499 lhw = ic->ic_softc; 500 chan = lkpi_find_lkpi80211_chan(lhw, c); 501 } 502 503 return (chan); 504 } 505 506 struct linuxkpi_ieee80211_channel * 507 linuxkpi_ieee80211_get_channel(struct wiphy *wiphy, uint32_t freq) 508 { 509 enum nl80211_band band; 510 511 for (band = 0; band < NUM_NL80211_BANDS; band++) { 512 struct ieee80211_supported_band *supband; 513 struct linuxkpi_ieee80211_channel *channels; 514 int i; 515 516 supband = wiphy->bands[band]; 517 if (supband == NULL || supband->n_channels == 0) 518 continue; 519 520 channels = supband->channels; 521 for (i = 0; i < supband->n_channels; i++) { 522 if (channels[i].center_freq == freq) 523 return (&channels[i]); 524 } 525 } 526 527 return (NULL); 528 } 529 530 #ifdef TRY_HW_CRYPTO 531 static int 532 _lkpi_iv_key_set_delete(struct ieee80211vap *vap, const struct ieee80211_key *k, 533 enum set_key_cmd cmd) 534 { 535 struct ieee80211com *ic; 536 struct lkpi_hw *lhw; 537 struct ieee80211_hw *hw; 538 struct lkpi_vif *lvif; 539 struct ieee80211_vif *vif; 540 struct ieee80211_sta *sta; 541 struct ieee80211_node *ni; 542 struct ieee80211_key_conf *kc; 543 int error; 544 545 /* XXX TODO Check (k->wk_flags & IEEE80211_KEY_SWENCRYPT) and don't upload to driver/hw? */ 546 547 ic = vap->iv_ic; 548 lhw = ic->ic_softc; 549 hw = LHW_TO_HW(lhw); 550 lvif = VAP_TO_LVIF(vap); 551 vif = LVIF_TO_VIF(lvif); 552 553 memset(&kc, 0, sizeof(kc)); 554 kc = malloc(sizeof(*kc) + k->wk_keylen, M_LKPI80211, M_WAITOK | M_ZERO); 555 kc->cipher = lkpi_net80211_to_l80211_cipher_suite( 556 k->wk_cipher->ic_cipher, k->wk_keylen); 557 kc->keyidx = k->wk_keyix; 558 #if 0 559 kc->hw_key_idx = /* set by hw and needs to be passed for TX */; 560 #endif 561 atomic64_set(&kc->tx_pn, k->wk_keytsc); 562 kc->keylen = k->wk_keylen; 563 memcpy(kc->key, k->wk_key, k->wk_keylen); 564 565 switch (kc->cipher) { 566 case WLAN_CIPHER_SUITE_CCMP: 567 kc->iv_len = k->wk_cipher->ic_header; 568 kc->icv_len = k->wk_cipher->ic_trailer; 569 break; 570 case WLAN_CIPHER_SUITE_TKIP: 571 default: 572 IMPROVE(); 573 return (0); 574 }; 575 576 ni = vap->iv_bss; 577 sta = ieee80211_find_sta(vif, ni->ni_bssid); 578 if (sta != NULL) { 579 struct lkpi_sta *lsta; 580 581 lsta = STA_TO_LSTA(sta); 582 lsta->kc = kc; 583 } 584 585 error = lkpi_80211_mo_set_key(hw, cmd, vif, sta, kc); 586 if (error != 0) { 587 /* XXX-BZ leaking kc currently */ 588 ic_printf(ic, "%s: set_key failed: %d\n", __func__, error); 589 return (0); 590 } else { 591 ic_printf(ic, "%s: set_key succeeded: keyidx %u hw_key_idx %u " 592 "flags %#10x\n", __func__, 593 kc->keyidx, kc->hw_key_idx, kc->flags); 594 return (1); 595 } 596 } 597 598 static int 599 lkpi_iv_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 600 { 601 602 /* XXX-BZ one day we should replace this iterating over VIFs, or node list? */ 603 return (_lkpi_iv_key_set_delete(vap, k, DISABLE_KEY)); 604 } 605 static int 606 lkpi_iv_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 607 { 608 609 return (_lkpi_iv_key_set_delete(vap, k, SET_KEY)); 610 } 611 #endif 612 613 static u_int 614 lkpi_ic_update_mcast_copy(void *arg, struct sockaddr_dl *sdl, u_int cnt) 615 { 616 struct netdev_hw_addr_list *mc_list; 617 struct netdev_hw_addr *addr; 618 619 KASSERT(arg != NULL && sdl != NULL, ("%s: arg %p sdl %p cnt %u\n", 620 __func__, arg, sdl, cnt)); 621 622 mc_list = arg; 623 /* If it is on the list already skip it. */ 624 netdev_hw_addr_list_for_each(addr, mc_list) { 625 if (!memcmp(addr->addr, LLADDR(sdl), sdl->sdl_alen)) 626 return (0); 627 } 628 629 addr = malloc(sizeof(*addr), M_LKPI80211, M_NOWAIT | M_ZERO); 630 if (addr == NULL) 631 return (0); 632 633 INIT_LIST_HEAD(&addr->addr_list); 634 memcpy(addr->addr, LLADDR(sdl), sdl->sdl_alen); 635 /* XXX this should be a netdev function? */ 636 list_add(&addr->addr_list, &mc_list->addr_list); 637 mc_list->count++; 638 639 #ifdef LINUXKPI_DEBUG_80211 640 if (linuxkpi_debug_80211 & D80211_TRACE) 641 printf("%s:%d: mc_list count %d: added %6D\n", 642 __func__, __LINE__, mc_list->count, addr->addr, ":"); 643 #endif 644 645 return (1); 646 } 647 648 static void 649 lkpi_update_mcast_filter(struct ieee80211com *ic, bool force) 650 { 651 struct lkpi_hw *lhw; 652 struct ieee80211_hw *hw; 653 struct netdev_hw_addr_list mc_list; 654 struct list_head *le, *next; 655 struct netdev_hw_addr *addr; 656 struct ieee80211vap *vap; 657 u64 mc; 658 unsigned int changed_flags, total_flags; 659 660 lhw = ic->ic_softc; 661 662 if (lhw->ops->prepare_multicast == NULL || 663 lhw->ops->configure_filter == NULL) 664 return; 665 666 if (!lhw->update_mc && !force) 667 return; 668 669 changed_flags = total_flags = 0; 670 mc_list.count = 0; 671 INIT_LIST_HEAD(&mc_list.addr_list); 672 if (ic->ic_allmulti == 0) { 673 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) 674 if_foreach_llmaddr(vap->iv_ifp, 675 lkpi_ic_update_mcast_copy, &mc_list); 676 } else { 677 changed_flags |= FIF_ALLMULTI; 678 } 679 680 hw = LHW_TO_HW(lhw); 681 mc = lkpi_80211_mo_prepare_multicast(hw, &mc_list); 682 /* 683 * XXX-BZ make sure to get this sorted what is a change, 684 * what gets all set; what was already set? 685 */ 686 total_flags = changed_flags; 687 lkpi_80211_mo_configure_filter(hw, changed_flags, &total_flags, mc); 688 689 #ifdef LINUXKPI_DEBUG_80211 690 if (linuxkpi_debug_80211 & D80211_TRACE) 691 printf("%s: changed_flags %#06x count %d total_flags %#010x\n", 692 __func__, changed_flags, mc_list.count, total_flags); 693 #endif 694 695 if (mc_list.count != 0) { 696 list_for_each_safe(le, next, &mc_list.addr_list) { 697 addr = list_entry(le, struct netdev_hw_addr, addr_list); 698 free(addr, M_LKPI80211); 699 mc_list.count--; 700 } 701 } 702 KASSERT(mc_list.count == 0, ("%s: mc_list %p count %d != 0\n", 703 __func__, &mc_list, mc_list.count)); 704 } 705 706 static enum ieee80211_bss_changed 707 lkpi_update_dtim_tsf(struct ieee80211_vif *vif, struct ieee80211_node *ni, 708 struct ieee80211vap *vap, const char *_f, int _l) 709 { 710 enum ieee80211_bss_changed bss_changed; 711 712 bss_changed = 0; 713 714 #ifdef LINUXKPI_DEBUG_80211 715 if (linuxkpi_debug_80211 & D80211_TRACE) 716 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 717 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 718 "sync_device_ts %u bss_changed %#08x\n", 719 __func__, __LINE__, _f, _l, 720 vif->bss_conf.assoc, vif->bss_conf.aid, 721 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 722 vif->bss_conf.sync_dtim_count, 723 (uintmax_t)vif->bss_conf.sync_tsf, 724 vif->bss_conf.sync_device_ts, 725 bss_changed); 726 #endif 727 728 if (vif->bss_conf.beacon_int != ni->ni_intval) { 729 vif->bss_conf.beacon_int = ni->ni_intval; 730 /* iwlwifi FW bug workaround; iwl_mvm_mac_sta_state. */ 731 if (vif->bss_conf.beacon_int < 16) 732 vif->bss_conf.beacon_int = 16; 733 bss_changed |= BSS_CHANGED_BEACON_INT; 734 } 735 if (vif->bss_conf.dtim_period != vap->iv_dtim_period && 736 vap->iv_dtim_period > 0) { 737 vif->bss_conf.dtim_period = vap->iv_dtim_period; 738 bss_changed |= BSS_CHANGED_BEACON_INFO; 739 } 740 741 vif->bss_conf.sync_dtim_count = vap->iv_dtim_count; 742 vif->bss_conf.sync_tsf = le64toh(ni->ni_tstamp.tsf); 743 /* vif->bss_conf.sync_device_ts = set in linuxkpi_ieee80211_rx. */ 744 745 #ifdef LINUXKPI_DEBUG_80211 746 if (linuxkpi_debug_80211 & D80211_TRACE) 747 printf("%s:%d [%s:%d] assoc %d aid %d beacon_int %u " 748 "dtim_period %u sync_dtim_count %u sync_tsf %ju " 749 "sync_device_ts %u bss_changed %#08x\n", 750 __func__, __LINE__, _f, _l, 751 vif->bss_conf.assoc, vif->bss_conf.aid, 752 vif->bss_conf.beacon_int, vif->bss_conf.dtim_period, 753 vif->bss_conf.sync_dtim_count, 754 (uintmax_t)vif->bss_conf.sync_tsf, 755 vif->bss_conf.sync_device_ts, 756 bss_changed); 757 #endif 758 759 return (bss_changed); 760 } 761 762 static void 763 lkpi_stop_hw_scan(struct lkpi_hw *lhw, struct ieee80211_vif *vif) 764 { 765 struct ieee80211_hw *hw; 766 int error; 767 768 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) 769 return; 770 771 hw = LHW_TO_HW(lhw); 772 773 IEEE80211_UNLOCK(lhw->ic); 774 LKPI_80211_LHW_LOCK(lhw); 775 /* Need to cancel the scan. */ 776 lkpi_80211_mo_cancel_hw_scan(hw, vif); 777 778 /* Need to make sure we see ieee80211_scan_completed. */ 779 error = msleep(lhw, &lhw->mtx, 0, "lhwscanstop", hz/2); 780 LKPI_80211_LHW_UNLOCK(lhw); 781 IEEE80211_LOCK(lhw->ic); 782 783 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) 784 ic_printf(lhw->ic, "%s: failed to cancel scan: %d (%p, %p)\n", 785 __func__, error, lhw, vif); 786 } 787 788 static void 789 lkpi_hw_conf_idle(struct ieee80211_hw *hw, bool new) 790 { 791 struct lkpi_hw *lhw; 792 int error; 793 bool old; 794 795 old = hw->conf.flags & IEEE80211_CONF_IDLE; 796 if (old == new) 797 return; 798 799 hw->conf.flags ^= IEEE80211_CONF_IDLE; 800 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_IDLE); 801 if (error != 0 && error != EOPNOTSUPP) { 802 lhw = HW_TO_LHW(hw); 803 ic_printf(lhw->ic, "ERROR: %s: config %#0x returned %d\n", 804 __func__, IEEE80211_CONF_CHANGE_IDLE, error); 805 } 806 } 807 808 static void 809 lkpi_disassoc(struct ieee80211_sta *sta, struct ieee80211_vif *vif, 810 struct lkpi_hw *lhw) 811 { 812 sta->aid = 0; 813 if (vif->bss_conf.assoc) { 814 struct ieee80211_hw *hw; 815 enum ieee80211_bss_changed changed; 816 817 lhw->update_mc = true; 818 lkpi_update_mcast_filter(lhw->ic, true); 819 820 changed = 0; 821 vif->bss_conf.assoc = false; 822 vif->bss_conf.aid = 0; 823 changed |= BSS_CHANGED_ASSOC; 824 /* 825 * This will remove the sta from firmware for iwlwifi. 826 * So confusing that they use state and flags and ... ^%$%#%$^. 827 */ 828 IMPROVE(); 829 hw = LHW_TO_HW(lhw); 830 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, 831 changed); 832 833 lkpi_hw_conf_idle(hw, true); 834 } 835 } 836 837 static void 838 lkpi_wake_tx_queues(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 839 bool dequeue_seen, bool no_emptyq) 840 { 841 struct lkpi_txq *ltxq; 842 int tid; 843 844 /* Wake up all queues to know they are allocated in the driver. */ 845 for (tid = 0; tid < nitems(sta->txq); tid++) { 846 847 if (tid == IEEE80211_NUM_TIDS) { 848 IMPROVE("station specific?"); 849 if (!ieee80211_hw_check(hw, STA_MMPDU_TXQ)) 850 continue; 851 } else if (tid >= hw->queues) 852 continue; 853 854 if (sta->txq[tid] == NULL) 855 continue; 856 857 ltxq = TXQ_TO_LTXQ(sta->txq[tid]); 858 if (dequeue_seen && !ltxq->seen_dequeue) 859 continue; 860 861 if (no_emptyq && skb_queue_empty(<xq->skbq)) 862 continue; 863 864 lkpi_80211_mo_wake_tx_queue(hw, sta->txq[tid]); 865 } 866 } 867 868 /* -------------------------------------------------------------------------- */ 869 870 static int 871 lkpi_sta_state_do_nada(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 872 { 873 874 return (0); 875 } 876 877 /* lkpi_iv_newstate() handles the stop scan case generally. */ 878 #define lkpi_sta_scan_to_init(_v, _n, _a) lkpi_sta_state_do_nada(_v, _n, _a) 879 880 static int 881 lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 882 { 883 struct linuxkpi_ieee80211_channel *chan; 884 struct ieee80211_chanctx_conf *conf; 885 struct lkpi_hw *lhw; 886 struct ieee80211_hw *hw; 887 struct lkpi_vif *lvif; 888 struct ieee80211_vif *vif; 889 struct ieee80211_node *ni; 890 struct lkpi_sta *lsta; 891 struct ieee80211_sta *sta; 892 enum ieee80211_bss_changed bss_changed; 893 struct ieee80211_prep_tx_info prep_tx_info; 894 uint32_t changed; 895 int error; 896 897 chan = lkpi_get_lkpi80211_chan(vap->iv_ic, vap->iv_bss); 898 if (chan == NULL) { 899 ic_printf(vap->iv_ic, "%s: failed to get channel\n", __func__); 900 return (ESRCH); 901 } 902 903 lhw = vap->iv_ic->ic_softc; 904 hw = LHW_TO_HW(lhw); 905 lvif = VAP_TO_LVIF(vap); 906 vif = LVIF_TO_VIF(lvif); 907 908 ni = ieee80211_ref_node(vap->iv_bss); 909 910 IEEE80211_UNLOCK(vap->iv_ic); 911 912 /* Add chanctx (or if exists, change it). */ 913 if (vif->chanctx_conf != NULL) { 914 conf = vif->chanctx_conf; 915 IMPROVE("diff changes for changed, working on live copy, rcu"); 916 } else { 917 /* Keep separate alloc as in Linux this is rcu managed? */ 918 conf = malloc(sizeof(*conf) + hw->chanctx_data_size, 919 M_LKPI80211, M_WAITOK | M_ZERO); 920 } 921 922 conf->rx_chains_dynamic = 1; 923 conf->rx_chains_static = 1; 924 conf->radar_enabled = 925 (chan->flags & IEEE80211_CHAN_RADAR) ? true : false; 926 conf->def.chan = chan; 927 conf->def.width = NL80211_CHAN_WIDTH_20_NOHT; 928 conf->def.center_freq1 = chan->center_freq; 929 conf->def.center_freq2 = 0; 930 /* Responder ... */ 931 conf->min_def.chan = chan; 932 conf->min_def.width = NL80211_CHAN_WIDTH_20_NOHT; 933 conf->min_def.center_freq1 = chan->center_freq; 934 conf->min_def.center_freq2 = 0; 935 IMPROVE("currently 20_NOHT only"); 936 937 error = 0; 938 if (vif->chanctx_conf != NULL) { 939 changed = IEEE80211_CHANCTX_CHANGE_MIN_WIDTH; 940 changed |= IEEE80211_CHANCTX_CHANGE_RADAR; 941 changed |= IEEE80211_CHANCTX_CHANGE_RX_CHAINS; 942 changed |= IEEE80211_CHANCTX_CHANGE_WIDTH; 943 lkpi_80211_mo_change_chanctx(hw, conf, changed); 944 } else { 945 error = lkpi_80211_mo_add_chanctx(hw, conf); 946 if (error == 0 || error == EOPNOTSUPP) { 947 vif->bss_conf.chandef.chan = conf->def.chan; 948 vif->bss_conf.chandef.width = conf->def.width; 949 vif->bss_conf.chandef.center_freq1 = 950 conf->def.center_freq1; 951 vif->bss_conf.chandef.center_freq2 = 952 conf->def.center_freq2; 953 } else { 954 goto out; 955 } 956 /* Assign vif chanctx. */ 957 if (error == 0) 958 error = lkpi_80211_mo_assign_vif_chanctx(hw, vif, conf); 959 if (error == EOPNOTSUPP) 960 error = 0; 961 if (error != 0) { 962 lkpi_80211_mo_remove_chanctx(hw, conf); 963 free(conf, M_LKPI80211); 964 goto out; 965 } 966 } 967 IMPROVE("update radiotap chan fields too"); 968 969 /* Set bss info (bss_info_changed). */ 970 bss_changed = 0; 971 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, ni->ni_bssid); 972 bss_changed |= BSS_CHANGED_BSSID; 973 vif->bss_conf.txpower = ni->ni_txpower; 974 bss_changed |= BSS_CHANGED_TXPOWER; 975 vif->bss_conf.idle = false; 976 bss_changed |= BSS_CHANGED_IDLE; 977 978 /* Should almost assert it is this. */ 979 vif->bss_conf.assoc = false; 980 vif->bss_conf.aid = 0; 981 982 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 983 984 /* RATES */ 985 IMPROVE("bss info: not all needs to come now and rates are missing"); 986 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 987 988 /* 989 * This is a bandaid for now. If we went through (*iv_update_bss)() 990 * and then removed the lsta we end up here without a lsta and have 991 * to manually allocate and link it in as lkpi_ic_node_alloc()/init() 992 * would normally do. 993 * XXX-BZ I do not like this but currently we have no good way of 994 * intercepting the bss swap and state changes and packets going out 995 * workflow so live with this. It is a compat layer after all. 996 */ 997 if (ni->ni_drv_data == NULL) { 998 lsta = lkpi_lsta_alloc(vap, ni->ni_macaddr, hw, ni); 999 if (lsta == NULL) { 1000 error = ENOMEM; 1001 goto out; 1002 } 1003 lsta->ni = ieee80211_ref_node(ni); 1004 } else { 1005 lsta = ni->ni_drv_data; 1006 } 1007 1008 /* Insert the [l]sta into the list of known stations. */ 1009 LKPI_80211_LVIF_LOCK(lvif); 1010 TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); 1011 LKPI_80211_LVIF_UNLOCK(lvif); 1012 1013 /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ 1014 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1015 KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " 1016 "NOTEXIST: %#x\n", __func__, lsta, lsta->state)); 1017 sta = LSTA_TO_STA(lsta); 1018 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1019 if (error != 0) { 1020 IMPROVE("do we need to undo the chan ctx?"); 1021 goto out; 1022 } 1023 #if 0 1024 lsta->added_to_drv = true; /* mo manages. */ 1025 #endif 1026 1027 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1028 1029 /* 1030 * Wakeup all queues now that sta is there so we have as much time to 1031 * possibly prepare the queue in the driver to be ready for the 1st 1032 * packet; lkpi_80211_txq_tx_one() still has a workaround as there 1033 * is no guarantee or way to check. 1034 * XXX-BZ and by now we know that this does not work on all drivers 1035 * for all queues. 1036 */ 1037 lkpi_wake_tx_queues(hw, sta, false, false); 1038 1039 /* Start mgd_prepare_tx. */ 1040 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1041 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1042 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1043 lsta->in_mgd = true; 1044 1045 /* 1046 * What is going to happen next: 1047 * - <twiddle> .. we should end up in "auth_to_assoc" 1048 * - event_callback 1049 * - update sta_state (NONE to AUTH) 1050 * - mgd_complete_tx 1051 * (ideally we'd do that on a callback for something else ...) 1052 */ 1053 1054 out: 1055 IEEE80211_LOCK(vap->iv_ic); 1056 if (ni != NULL) 1057 ieee80211_free_node(ni); 1058 return (error); 1059 } 1060 1061 static int 1062 lkpi_sta_auth_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1063 { 1064 struct lkpi_hw *lhw; 1065 struct ieee80211_hw *hw; 1066 struct lkpi_vif *lvif; 1067 struct ieee80211_vif *vif; 1068 struct ieee80211_node *ni; 1069 struct lkpi_sta *lsta; 1070 struct ieee80211_sta *sta; 1071 struct ieee80211_prep_tx_info prep_tx_info; 1072 int error; 1073 1074 lhw = vap->iv_ic->ic_softc; 1075 hw = LHW_TO_HW(lhw); 1076 lvif = VAP_TO_LVIF(vap); 1077 vif = LVIF_TO_VIF(lvif); 1078 1079 /* Keep ni around. */ 1080 ni = ieee80211_ref_node(vap->iv_bss); 1081 lsta = ni->ni_drv_data; 1082 sta = LSTA_TO_STA(lsta); 1083 1084 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1085 1086 IEEE80211_UNLOCK(vap->iv_ic); 1087 1088 /* flush, drop. */ 1089 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1090 1091 /* Wake tx queues to get packet(s) out. */ 1092 lkpi_wake_tx_queues(hw, sta, true, true); 1093 1094 /* flush, no drop */ 1095 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1096 1097 /* End mgd_complete_tx. */ 1098 if (lsta->in_mgd) { 1099 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1100 prep_tx_info.success = false; 1101 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1102 lsta->in_mgd = false; 1103 } 1104 1105 /* sync_rx_queues */ 1106 lkpi_80211_mo_sync_rx_queues(hw); 1107 1108 /* sta_pre_rcu_remove */ 1109 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1110 1111 /* Take the station down. */ 1112 1113 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1114 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1115 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1116 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1117 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1118 if (error != 0) { 1119 IMPROVE("do we need to undo the chan ctx?"); 1120 goto out; 1121 } 1122 #if 0 1123 lsta->added_to_drv = false; /* mo manages. */ 1124 #endif 1125 1126 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1127 1128 lkpi_lsta_remove(lsta, lvif); 1129 1130 /* conf_tx */ 1131 1132 /* Take the chan ctx down. */ 1133 if (vif->chanctx_conf != NULL) { 1134 struct ieee80211_chanctx_conf *conf; 1135 1136 conf = vif->chanctx_conf; 1137 /* Remove vif context. */ 1138 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1139 /* NB: vif->chanctx_conf is NULL now. */ 1140 1141 /* Remove chan ctx. */ 1142 lkpi_80211_mo_remove_chanctx(hw, conf); 1143 free(conf, M_LKPI80211); 1144 } 1145 1146 out: 1147 IEEE80211_LOCK(vap->iv_ic); 1148 if (ni != NULL) 1149 ieee80211_free_node(ni); 1150 return (error); 1151 } 1152 1153 static int 1154 lkpi_sta_auth_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1155 { 1156 int error; 1157 1158 error = lkpi_sta_auth_to_scan(vap, nstate, arg); 1159 if (error == 0) 1160 error = lkpi_sta_scan_to_init(vap, nstate, arg); 1161 return (error); 1162 } 1163 1164 static int 1165 lkpi_sta_auth_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1166 { 1167 struct lkpi_hw *lhw; 1168 struct ieee80211_hw *hw; 1169 struct lkpi_vif *lvif; 1170 struct ieee80211_vif *vif; 1171 struct ieee80211_node *ni; 1172 struct lkpi_sta *lsta; 1173 struct ieee80211_sta *sta; 1174 struct ieee80211_prep_tx_info prep_tx_info; 1175 int error; 1176 1177 lhw = vap->iv_ic->ic_softc; 1178 hw = LHW_TO_HW(lhw); 1179 lvif = VAP_TO_LVIF(vap); 1180 vif = LVIF_TO_VIF(lvif); 1181 1182 IEEE80211_UNLOCK(vap->iv_ic); 1183 ni = NULL; 1184 1185 /* Finish auth. */ 1186 IMPROVE("event callback"); 1187 1188 /* Update sta_state (NONE to AUTH). */ 1189 ni = ieee80211_ref_node(vap->iv_bss); 1190 lsta = ni->ni_drv_data; 1191 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1192 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1193 "NONE: %#x\n", __func__, lsta, lsta->state)); 1194 sta = LSTA_TO_STA(lsta); 1195 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1196 if (error != 0) 1197 goto out; 1198 1199 /* End mgd_complete_tx. */ 1200 if (lsta->in_mgd) { 1201 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1202 prep_tx_info.success = true; 1203 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1204 lsta->in_mgd = false; 1205 } 1206 1207 /* Now start assoc. */ 1208 1209 /* Start mgd_prepare_tx. */ 1210 if (!lsta->in_mgd) { 1211 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1212 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1213 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1214 lsta->in_mgd = true; 1215 } 1216 1217 /* Wake tx queue to get packet out. */ 1218 lkpi_wake_tx_queues(hw, sta, true, true); 1219 1220 /* 1221 * <twiddle> .. we end up in "assoc_to_run" 1222 * - update sta_state (AUTH to ASSOC) 1223 * - conf_tx [all] 1224 * - bss_info_changed (assoc, aid, ssid, ..) 1225 * - change_chanctx (if needed) 1226 * - event_callback 1227 * - mgd_complete_tx 1228 */ 1229 1230 out: 1231 IEEE80211_LOCK(vap->iv_ic); 1232 if (ni != NULL) 1233 ieee80211_free_node(ni); 1234 return (error); 1235 } 1236 1237 /* auth_to_auth, assoc_to_assoc. */ 1238 static int 1239 lkpi_sta_a_to_a(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1240 { 1241 struct lkpi_hw *lhw; 1242 struct ieee80211_hw *hw; 1243 struct lkpi_vif *lvif; 1244 struct ieee80211_vif *vif; 1245 struct ieee80211_node *ni; 1246 struct lkpi_sta *lsta; 1247 struct ieee80211_prep_tx_info prep_tx_info; 1248 1249 lhw = vap->iv_ic->ic_softc; 1250 hw = LHW_TO_HW(lhw); 1251 lvif = VAP_TO_LVIF(vap); 1252 vif = LVIF_TO_VIF(lvif); 1253 1254 ni = ieee80211_ref_node(vap->iv_bss); 1255 1256 IEEE80211_UNLOCK(vap->iv_ic); 1257 lsta = ni->ni_drv_data; 1258 1259 IMPROVE("event callback?"); 1260 1261 /* End mgd_complete_tx. */ 1262 if (lsta->in_mgd) { 1263 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1264 prep_tx_info.success = false; 1265 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1266 lsta->in_mgd = false; 1267 } 1268 1269 /* Now start assoc. */ 1270 1271 /* Start mgd_prepare_tx. */ 1272 if (!lsta->in_mgd) { 1273 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1274 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1275 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1276 lsta->in_mgd = true; 1277 } 1278 1279 IEEE80211_LOCK(vap->iv_ic); 1280 if (ni != NULL) 1281 ieee80211_free_node(ni); 1282 1283 return (0); 1284 } 1285 1286 static int 1287 _lkpi_sta_assoc_to_down(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1288 { 1289 struct lkpi_hw *lhw; 1290 struct ieee80211_hw *hw; 1291 struct lkpi_vif *lvif; 1292 struct ieee80211_vif *vif; 1293 struct ieee80211_node *ni; 1294 struct lkpi_sta *lsta; 1295 struct ieee80211_sta *sta; 1296 struct ieee80211_prep_tx_info prep_tx_info; 1297 enum ieee80211_bss_changed bss_changed; 1298 int error; 1299 1300 lhw = vap->iv_ic->ic_softc; 1301 hw = LHW_TO_HW(lhw); 1302 lvif = VAP_TO_LVIF(vap); 1303 vif = LVIF_TO_VIF(lvif); 1304 1305 /* Keep ni around. */ 1306 ni = ieee80211_ref_node(vap->iv_bss); 1307 lsta = ni->ni_drv_data; 1308 sta = LSTA_TO_STA(lsta); 1309 1310 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1311 1312 IEEE80211_UNLOCK(vap->iv_ic); 1313 1314 /* flush, drop. */ 1315 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1316 1317 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1318 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1319 !lsta->in_mgd) { 1320 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1321 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1322 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1323 lsta->in_mgd = true; 1324 } 1325 1326 IEEE80211_LOCK(vap->iv_ic); 1327 1328 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1329 error = lvif->iv_newstate(vap, nstate, arg); 1330 if (error != 0) 1331 goto outni; 1332 1333 IEEE80211_UNLOCK(vap->iv_ic); 1334 1335 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1336 1337 /* Wake tx queues to get packet(s) out. */ 1338 lkpi_wake_tx_queues(hw, sta, true, true); 1339 1340 /* flush, no drop */ 1341 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1342 1343 /* End mgd_complete_tx. */ 1344 if (lsta->in_mgd) { 1345 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1346 prep_tx_info.success = false; 1347 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1348 lsta->in_mgd = false; 1349 } 1350 1351 /* sync_rx_queues */ 1352 lkpi_80211_mo_sync_rx_queues(hw); 1353 1354 /* sta_pre_rcu_remove */ 1355 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1356 1357 /* Take the station down. */ 1358 1359 /* Update sta and change state (from AUTH) to NONE. */ 1360 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1361 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1362 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1363 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1364 if (error != 0) 1365 goto out; 1366 1367 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1368 1369 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1370 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1371 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1372 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1373 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1374 if (error != 0) { 1375 IMPROVE("do we need to undo the chan ctx?"); 1376 goto out; 1377 } 1378 #if 0 1379 lsta->added_to_drv = false; /* mo manages. */ 1380 #endif 1381 1382 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1383 1384 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1385 /* We need to do this now, can only do after sta is IEEE80211_STA_NOTEXIST. */ 1386 lkpi_disassoc(sta, vif, lhw); 1387 1388 IMPROVE("Any bss_info changes to announce?"); 1389 bss_changed = 0; 1390 vif->bss_conf.qos = 0; 1391 bss_changed |= BSS_CHANGED_QOS; 1392 vif->bss_conf.ssid_len = 0; 1393 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1394 bss_changed |= BSS_CHANGED_BSSID; 1395 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1396 1397 lkpi_lsta_remove(lsta, lvif); 1398 1399 /* conf_tx */ 1400 1401 /* Take the chan ctx down. */ 1402 if (vif->chanctx_conf != NULL) { 1403 struct ieee80211_chanctx_conf *conf; 1404 1405 conf = vif->chanctx_conf; 1406 /* Remove vif context. */ 1407 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1408 /* NB: vif->chanctx_conf is NULL now. */ 1409 1410 /* Remove chan ctx. */ 1411 lkpi_80211_mo_remove_chanctx(hw, conf); 1412 free(conf, M_LKPI80211); 1413 } 1414 1415 error = EALREADY; 1416 out: 1417 IEEE80211_LOCK(vap->iv_ic); 1418 outni: 1419 if (ni != NULL) 1420 ieee80211_free_node(ni); 1421 return (error); 1422 } 1423 1424 static int 1425 lkpi_sta_assoc_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1426 { 1427 int error; 1428 1429 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1430 if (error != 0 && error != EALREADY) 1431 return (error); 1432 1433 /* At this point iv_bss is long a new node! */ 1434 1435 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1436 return (error); 1437 } 1438 1439 static int 1440 lkpi_sta_assoc_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1441 { 1442 int error; 1443 1444 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1445 return (error); 1446 } 1447 1448 static int 1449 lkpi_sta_assoc_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1450 { 1451 int error; 1452 1453 error = _lkpi_sta_assoc_to_down(vap, nstate, arg); 1454 return (error); 1455 } 1456 1457 static int 1458 lkpi_sta_assoc_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1459 { 1460 struct lkpi_hw *lhw; 1461 struct ieee80211_hw *hw; 1462 struct lkpi_vif *lvif; 1463 struct ieee80211_vif *vif; 1464 struct ieee80211_node *ni; 1465 struct lkpi_sta *lsta; 1466 struct ieee80211_sta *sta; 1467 struct ieee80211_prep_tx_info prep_tx_info; 1468 enum ieee80211_bss_changed bss_changed; 1469 int error; 1470 1471 lhw = vap->iv_ic->ic_softc; 1472 hw = LHW_TO_HW(lhw); 1473 lvif = VAP_TO_LVIF(vap); 1474 vif = LVIF_TO_VIF(lvif); 1475 1476 IEEE80211_UNLOCK(vap->iv_ic); 1477 ni = NULL; 1478 1479 IMPROVE("ponder some of this moved to ic_newassoc, scan_assoc_success, " 1480 "and to lesser extend ieee80211_notify_node_join"); 1481 1482 /* Finish assoc. */ 1483 /* Update sta_state (AUTH to ASSOC) and set aid. */ 1484 ni = ieee80211_ref_node(vap->iv_bss); 1485 lsta = ni->ni_drv_data; 1486 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1487 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1488 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1489 sta = LSTA_TO_STA(lsta); 1490 sta->aid = IEEE80211_NODE_AID(ni); 1491 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1492 if (error != 0) 1493 goto out; 1494 1495 IMPROVE("wme / conf_tx [all]"); 1496 1497 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1498 bss_changed = 0; 1499 if (!vif->bss_conf.assoc || vif->bss_conf.aid != IEEE80211_NODE_AID(ni)) { 1500 vif->bss_conf.assoc = true; 1501 vif->bss_conf.aid = IEEE80211_NODE_AID(ni); 1502 bss_changed |= BSS_CHANGED_ASSOC; 1503 } 1504 /* We set SSID but this is not BSSID! */ 1505 vif->bss_conf.ssid_len = ni->ni_esslen; 1506 memcpy(vif->bss_conf.ssid, ni->ni_essid, ni->ni_esslen); 1507 if ((vap->iv_flags & IEEE80211_F_SHPREAMBLE) != 1508 vif->bss_conf.use_short_preamble) { 1509 vif->bss_conf.use_short_preamble ^= 1; 1510 /* bss_changed |= BSS_CHANGED_??? */ 1511 } 1512 if ((vap->iv_flags & IEEE80211_F_SHSLOT) != 1513 vif->bss_conf.use_short_slot) { 1514 vif->bss_conf.use_short_slot ^= 1; 1515 /* bss_changed |= BSS_CHANGED_??? */ 1516 } 1517 if ((ni->ni_flags & IEEE80211_NODE_QOS) != 1518 vif->bss_conf.qos) { 1519 vif->bss_conf.qos ^= 1; 1520 bss_changed |= BSS_CHANGED_QOS; 1521 } 1522 1523 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1524 1525 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1526 1527 /* - change_chanctx (if needed) 1528 * - event_callback 1529 */ 1530 1531 /* End mgd_complete_tx. */ 1532 if (lsta->in_mgd) { 1533 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1534 prep_tx_info.success = true; 1535 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1536 lsta->in_mgd = false; 1537 } 1538 1539 lkpi_hw_conf_idle(hw, false); 1540 1541 /* 1542 * And then: 1543 * - (more packets)? 1544 * - set_key 1545 * - set_default_unicast_key 1546 * - set_key (?) 1547 * - ipv6_addr_change (?) 1548 */ 1549 /* Prepare_multicast && configure_filter. */ 1550 lhw->update_mc = true; 1551 lkpi_update_mcast_filter(vap->iv_ic, true); 1552 1553 if (!ieee80211_node_is_authorized(ni)) { 1554 IMPROVE("net80211 does not consider node authorized"); 1555 } 1556 1557 /* Update sta_state (ASSOC to AUTHORIZED). */ 1558 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1559 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1560 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1561 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTHORIZED); 1562 if (error != 0) { 1563 IMPROVE("undo some changes?"); 1564 goto out; 1565 } 1566 1567 /* - drv_config (?) 1568 * - bss_info_changed 1569 * - set_rekey_data (?) 1570 * 1571 * And now we should be passing packets. 1572 */ 1573 IMPROVE("Need that bssid setting, and the keys"); 1574 1575 bss_changed = 0; 1576 bss_changed |= lkpi_update_dtim_tsf(vif, ni, vap, __func__, __LINE__); 1577 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1578 1579 out: 1580 IEEE80211_LOCK(vap->iv_ic); 1581 if (ni != NULL) 1582 ieee80211_free_node(ni); 1583 return (error); 1584 } 1585 1586 static int 1587 lkpi_sta_auth_to_run(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1588 { 1589 int error; 1590 1591 error = lkpi_sta_auth_to_assoc(vap, nstate, arg); 1592 if (error == 0) 1593 error = lkpi_sta_assoc_to_run(vap, nstate, arg); 1594 return (error); 1595 } 1596 1597 static int 1598 lkpi_sta_run_to_assoc(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1599 { 1600 struct lkpi_hw *lhw; 1601 struct ieee80211_hw *hw; 1602 struct lkpi_vif *lvif; 1603 struct ieee80211_vif *vif; 1604 struct ieee80211_node *ni; 1605 struct lkpi_sta *lsta; 1606 struct ieee80211_sta *sta; 1607 struct ieee80211_prep_tx_info prep_tx_info; 1608 #if 0 1609 enum ieee80211_bss_changed bss_changed; 1610 #endif 1611 int error; 1612 1613 lhw = vap->iv_ic->ic_softc; 1614 hw = LHW_TO_HW(lhw); 1615 lvif = VAP_TO_LVIF(vap); 1616 vif = LVIF_TO_VIF(lvif); 1617 1618 /* Keep ni around. */ 1619 ni = ieee80211_ref_node(vap->iv_bss); 1620 lsta = ni->ni_drv_data; 1621 sta = LSTA_TO_STA(lsta); 1622 1623 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1624 1625 IEEE80211_UNLOCK(vap->iv_ic); 1626 1627 /* flush, drop. */ 1628 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1629 1630 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1631 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1632 !lsta->in_mgd) { 1633 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1634 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1635 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1636 lsta->in_mgd = true; 1637 } 1638 1639 IEEE80211_LOCK(vap->iv_ic); 1640 1641 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1642 error = lvif->iv_newstate(vap, nstate, arg); 1643 if (error != 0) 1644 goto outni; 1645 1646 IEEE80211_UNLOCK(vap->iv_ic); 1647 1648 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1649 1650 /* Wake tx queues to get packet(s) out. */ 1651 lkpi_wake_tx_queues(hw, sta, true, true); 1652 1653 /* flush, no drop */ 1654 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1655 1656 /* End mgd_complete_tx. */ 1657 if (lsta->in_mgd) { 1658 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1659 prep_tx_info.success = false; 1660 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1661 lsta->in_mgd = false; 1662 } 1663 1664 #if 0 1665 /* sync_rx_queues */ 1666 lkpi_80211_mo_sync_rx_queues(hw); 1667 1668 /* sta_pre_rcu_remove */ 1669 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1670 #endif 1671 1672 /* Take the station down. */ 1673 1674 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1675 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1676 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1677 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1678 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1679 if (error != 0) 1680 goto out; 1681 1682 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1683 1684 /* Update sta_state (ASSOC to AUTH). */ 1685 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1686 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1687 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1688 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1689 if (error != 0) 1690 goto out; 1691 1692 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1693 1694 #if 0 1695 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1696 lkpi_disassoc(sta, vif, lhw); 1697 #endif 1698 1699 error = EALREADY; 1700 out: 1701 IEEE80211_LOCK(vap->iv_ic); 1702 outni: 1703 if (ni != NULL) 1704 ieee80211_free_node(ni); 1705 return (error); 1706 } 1707 1708 static int 1709 lkpi_sta_run_to_init(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1710 { 1711 struct lkpi_hw *lhw; 1712 struct ieee80211_hw *hw; 1713 struct lkpi_vif *lvif; 1714 struct ieee80211_vif *vif; 1715 struct ieee80211_node *ni; 1716 struct lkpi_sta *lsta; 1717 struct ieee80211_sta *sta; 1718 struct ieee80211_prep_tx_info prep_tx_info; 1719 enum ieee80211_bss_changed bss_changed; 1720 int error; 1721 1722 lhw = vap->iv_ic->ic_softc; 1723 hw = LHW_TO_HW(lhw); 1724 lvif = VAP_TO_LVIF(vap); 1725 vif = LVIF_TO_VIF(lvif); 1726 1727 /* Keep ni around. */ 1728 ni = ieee80211_ref_node(vap->iv_bss); 1729 lsta = ni->ni_drv_data; 1730 sta = LSTA_TO_STA(lsta); 1731 1732 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1733 1734 IEEE80211_UNLOCK(vap->iv_ic); 1735 1736 /* flush, drop. */ 1737 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), true); 1738 1739 IMPROVE("What are the proper conditions for DEAUTH_NEED_MGD_TX_PREP?"); 1740 if (ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP) && 1741 !lsta->in_mgd) { 1742 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1743 prep_tx_info.duration = PREP_TX_INFO_DURATION; 1744 lkpi_80211_mo_mgd_prepare_tx(hw, vif, &prep_tx_info); 1745 lsta->in_mgd = true; 1746 } 1747 1748 IEEE80211_LOCK(vap->iv_ic); 1749 1750 /* Call iv_newstate first so we get potential DISASSOC packet out. */ 1751 error = lvif->iv_newstate(vap, nstate, arg); 1752 if (error != 0) 1753 goto outni; 1754 1755 IEEE80211_UNLOCK(vap->iv_ic); 1756 1757 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1758 1759 /* Wake tx queues to get packet(s) out. */ 1760 lkpi_wake_tx_queues(hw, sta, true, true); 1761 1762 /* flush, no drop */ 1763 lkpi_80211_mo_flush(hw, vif, nitems(sta->txq), false); 1764 1765 /* End mgd_complete_tx. */ 1766 if (lsta->in_mgd) { 1767 memset(&prep_tx_info, 0, sizeof(prep_tx_info)); 1768 prep_tx_info.success = false; 1769 lkpi_80211_mo_mgd_complete_tx(hw, vif, &prep_tx_info); 1770 lsta->in_mgd = false; 1771 } 1772 1773 /* sync_rx_queues */ 1774 lkpi_80211_mo_sync_rx_queues(hw); 1775 1776 /* sta_pre_rcu_remove */ 1777 lkpi_80211_mo_sta_pre_rcu_remove(hw, vif, sta); 1778 1779 /* Take the station down. */ 1780 1781 /* Adjust sta and change state (from AUTHORIZED) to ASSOC. */ 1782 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1783 KASSERT(lsta->state == IEEE80211_STA_AUTHORIZED, ("%s: lsta %p state not " 1784 "AUTHORIZED: %#x\n", __func__, lsta, lsta->state)); 1785 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_ASSOC); 1786 if (error != 0) 1787 goto out; 1788 1789 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1790 1791 /* Update sta_state (ASSOC to AUTH). */ 1792 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1793 KASSERT(lsta->state == IEEE80211_STA_ASSOC, ("%s: lsta %p state not " 1794 "ASSOC: %#x\n", __func__, lsta, lsta->state)); 1795 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_AUTH); 1796 if (error != 0) 1797 goto out; 1798 1799 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1800 1801 /* Update sta and change state (from AUTH) to NONE. */ 1802 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1803 KASSERT(lsta->state == IEEE80211_STA_AUTH, ("%s: lsta %p state not " 1804 "AUTH: %#x\n", __func__, lsta, lsta->state)); 1805 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NONE); 1806 if (error != 0) 1807 goto out; 1808 1809 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1810 1811 /* Adjust sta and change state (from NONE) to NOTEXIST. */ 1812 KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); 1813 KASSERT(lsta->state == IEEE80211_STA_NONE, ("%s: lsta %p state not " 1814 "NONE: %#x, nstate %d arg %d\n", __func__, lsta, lsta->state, nstate, arg)); 1815 error = lkpi_80211_mo_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST); 1816 if (error != 0) { 1817 IMPROVE("do we need to undo the chan ctx?"); 1818 goto out; 1819 } 1820 #if 0 1821 lsta->added_to_drv = false; /* mo manages. */ 1822 #endif 1823 1824 lkpi_lsta_dump(lsta, ni, __func__, __LINE__); 1825 1826 /* Update bss info (bss_info_changed) (assoc, aid, ..). */ 1827 /* 1828 * One would expect this to happen when going off AUTHORIZED. 1829 * See comment there; removes the sta from fw. 1830 */ 1831 lkpi_disassoc(sta, vif, lhw); 1832 1833 IMPROVE("Any bss_info changes to announce?"); 1834 bss_changed = 0; 1835 vif->bss_conf.qos = 0; 1836 bss_changed |= BSS_CHANGED_QOS; 1837 vif->bss_conf.ssid_len = 0; 1838 memset(vif->bss_conf.ssid, '\0', sizeof(vif->bss_conf.ssid)); 1839 bss_changed |= BSS_CHANGED_BSSID; 1840 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, bss_changed); 1841 1842 lkpi_lsta_remove(lsta, lvif); 1843 1844 /* conf_tx */ 1845 1846 /* Take the chan ctx down. */ 1847 if (vif->chanctx_conf != NULL) { 1848 struct ieee80211_chanctx_conf *conf; 1849 1850 conf = vif->chanctx_conf; 1851 /* Remove vif context. */ 1852 lkpi_80211_mo_unassign_vif_chanctx(hw, vif, &vif->chanctx_conf); 1853 /* NB: vif->chanctx_conf is NULL now. */ 1854 1855 /* Remove chan ctx. */ 1856 lkpi_80211_mo_remove_chanctx(hw, conf); 1857 free(conf, M_LKPI80211); 1858 } 1859 1860 error = EALREADY; 1861 out: 1862 IEEE80211_LOCK(vap->iv_ic); 1863 outni: 1864 if (ni != NULL) 1865 ieee80211_free_node(ni); 1866 return (error); 1867 } 1868 1869 static int 1870 lkpi_sta_run_to_scan(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1871 { 1872 1873 return (lkpi_sta_run_to_init(vap, nstate, arg)); 1874 } 1875 1876 static int 1877 lkpi_sta_run_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1878 { 1879 int error; 1880 1881 error = lkpi_sta_run_to_init(vap, nstate, arg); 1882 if (error != 0 && error != EALREADY) 1883 return (error); 1884 1885 /* At this point iv_bss is long a new node! */ 1886 1887 error |= lkpi_sta_scan_to_auth(vap, nstate, 0); 1888 return (error); 1889 } 1890 1891 /* -------------------------------------------------------------------------- */ 1892 1893 /* 1894 * The matches the documented state changes in net80211::sta_newstate(). 1895 * XXX (1) without CSA and SLEEP yet, * XXX (2) not all unhandled cases 1896 * there are "invalid" (so there is a room for failure here). 1897 */ 1898 struct fsm_state { 1899 /* INIT, SCAN, AUTH, ASSOC, CAC, RUN, CSA, SLEEP */ 1900 enum ieee80211_state ostate; 1901 enum ieee80211_state nstate; 1902 int (*handler)(struct ieee80211vap *, enum ieee80211_state, int); 1903 } sta_state_fsm[] = { 1904 { IEEE80211_S_INIT, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, 1905 { IEEE80211_S_SCAN, IEEE80211_S_INIT, lkpi_sta_state_do_nada }, /* scan_to_init */ 1906 { IEEE80211_S_AUTH, IEEE80211_S_INIT, lkpi_sta_auth_to_init }, /* not explicitly in sta_newstate() */ 1907 { IEEE80211_S_ASSOC, IEEE80211_S_INIT, lkpi_sta_assoc_to_init }, /* Send DEAUTH. */ 1908 { IEEE80211_S_RUN, IEEE80211_S_INIT, lkpi_sta_run_to_init }, /* Send DISASSOC. */ 1909 1910 { IEEE80211_S_INIT, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1911 { IEEE80211_S_SCAN, IEEE80211_S_SCAN, lkpi_sta_state_do_nada }, 1912 { IEEE80211_S_AUTH, IEEE80211_S_SCAN, lkpi_sta_auth_to_scan }, 1913 { IEEE80211_S_ASSOC, IEEE80211_S_SCAN, lkpi_sta_assoc_to_scan }, 1914 { IEEE80211_S_RUN, IEEE80211_S_SCAN, lkpi_sta_run_to_scan }, /* Beacon miss. */ 1915 1916 { IEEE80211_S_INIT, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1917 { IEEE80211_S_SCAN, IEEE80211_S_AUTH, lkpi_sta_scan_to_auth }, /* Send AUTH. */ 1918 { IEEE80211_S_AUTH, IEEE80211_S_AUTH, lkpi_sta_a_to_a }, /* Send ?AUTH. */ 1919 { IEEE80211_S_ASSOC, IEEE80211_S_AUTH, lkpi_sta_assoc_to_auth }, /* Send ?AUTH. */ 1920 { IEEE80211_S_RUN, IEEE80211_S_AUTH, lkpi_sta_run_to_auth }, /* Send ?AUTH. */ 1921 1922 { IEEE80211_S_AUTH, IEEE80211_S_ASSOC, lkpi_sta_auth_to_assoc }, /* Send ASSOCREQ. */ 1923 { IEEE80211_S_ASSOC, IEEE80211_S_ASSOC, lkpi_sta_a_to_a }, /* Send ASSOCREQ. */ 1924 { IEEE80211_S_RUN, IEEE80211_S_ASSOC, lkpi_sta_run_to_assoc }, /* Send ASSOCREQ/REASSOCREQ. */ 1925 1926 { IEEE80211_S_AUTH, IEEE80211_S_RUN, lkpi_sta_auth_to_run }, 1927 { IEEE80211_S_ASSOC, IEEE80211_S_RUN, lkpi_sta_assoc_to_run }, 1928 { IEEE80211_S_RUN, IEEE80211_S_RUN, lkpi_sta_state_do_nada }, 1929 1930 /* Dummy at the end without handler. */ 1931 { IEEE80211_S_INIT, IEEE80211_S_INIT, NULL }, 1932 }; 1933 1934 static int 1935 lkpi_iv_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1936 { 1937 struct ieee80211com *ic; 1938 struct lkpi_hw *lhw; 1939 struct lkpi_vif *lvif; 1940 struct ieee80211_vif *vif; 1941 struct fsm_state *s; 1942 enum ieee80211_state ostate; 1943 int error; 1944 1945 ic = vap->iv_ic; 1946 IEEE80211_LOCK_ASSERT(ic); 1947 ostate = vap->iv_state; 1948 1949 #ifdef LINUXKPI_DEBUG_80211 1950 if (linuxkpi_debug_80211 & D80211_TRACE) 1951 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x\n", 1952 __func__, __LINE__, vap, nstate, arg); 1953 #endif 1954 1955 if (vap->iv_opmode == IEEE80211_M_STA) { 1956 1957 lhw = ic->ic_softc; 1958 lvif = VAP_TO_LVIF(vap); 1959 vif = LVIF_TO_VIF(lvif); 1960 1961 /* No need to replicate this in most state handlers. */ 1962 if (ostate == IEEE80211_S_SCAN && nstate != IEEE80211_S_SCAN) 1963 lkpi_stop_hw_scan(lhw, vif); 1964 1965 s = sta_state_fsm; 1966 1967 } else { 1968 ic_printf(vap->iv_ic, "%s: only station mode currently supported: " 1969 "cap %p iv_opmode %d\n", __func__, vap, vap->iv_opmode); 1970 return (ENOSYS); 1971 } 1972 1973 error = 0; 1974 for (; s->handler != NULL; s++) { 1975 if (ostate == s->ostate && nstate == s->nstate) { 1976 #ifdef LINUXKPI_DEBUG_80211 1977 if (linuxkpi_debug_80211 & D80211_TRACE) 1978 ic_printf(vap->iv_ic, "%s: new state %d (%s) ->" 1979 " %d (%s): arg %d.\n", __func__, 1980 ostate, ieee80211_state_name[ostate], 1981 nstate, ieee80211_state_name[nstate], arg); 1982 #endif 1983 error = s->handler(vap, nstate, arg); 1984 break; 1985 } 1986 } 1987 IEEE80211_LOCK_ASSERT(vap->iv_ic); 1988 1989 if (s->handler == NULL) { 1990 IMPROVE("turn this into a KASSERT\n"); 1991 ic_printf(vap->iv_ic, "%s: unsupported state transition " 1992 "%d (%s) -> %d (%s)\n", __func__, 1993 ostate, ieee80211_state_name[ostate], 1994 nstate, ieee80211_state_name[nstate]); 1995 return (ENOSYS); 1996 } 1997 1998 if (error == EALREADY) { 1999 #ifdef LINUXKPI_DEBUG_80211 2000 if (linuxkpi_debug_80211 & D80211_TRACE) 2001 ic_printf(vap->iv_ic, "%s: state transition %d (%s) -> " 2002 "%d (%s): iv_newstate already handled: %d.\n", 2003 __func__, ostate, ieee80211_state_name[ostate], 2004 nstate, ieee80211_state_name[nstate], error); 2005 #endif 2006 return (0); 2007 } 2008 2009 if (error != 0) { 2010 /* XXX-BZ currently expected so ignore. */ 2011 ic_printf(vap->iv_ic, "%s: error %d during state transition " 2012 "%d (%s) -> %d (%s)\n", __func__, error, 2013 ostate, ieee80211_state_name[ostate], 2014 nstate, ieee80211_state_name[nstate]); 2015 /* return (error); */ 2016 } 2017 2018 #ifdef LINUXKPI_DEBUG_80211 2019 if (linuxkpi_debug_80211 & D80211_TRACE) 2020 ic_printf(vap->iv_ic, "%s:%d: vap %p nstate %#x arg %#x " 2021 "calling net80211 parent\n", 2022 __func__, __LINE__, vap, nstate, arg); 2023 #endif 2024 2025 return (lvif->iv_newstate(vap, nstate, arg)); 2026 } 2027 2028 /* -------------------------------------------------------------------------- */ 2029 2030 /* 2031 * We overload (*iv_update_bss) as otherwise we have cases in, e.g., 2032 * net80211::ieee80211_sta_join1() where vap->iv_bss gets replaced by a 2033 * new node without us knowing and thus our ni/lsta are out of sync. 2034 */ 2035 static struct ieee80211_node * 2036 lkpi_iv_update_bss(struct ieee80211vap *vap, struct ieee80211_node *ni) 2037 { 2038 struct lkpi_vif *lvif; 2039 struct ieee80211_node *obss; 2040 struct lkpi_sta *lsta; 2041 struct ieee80211_sta *sta; 2042 2043 obss = vap->iv_bss; 2044 2045 #ifdef LINUXKPI_DEBUG_80211 2046 if (linuxkpi_debug_80211 & D80211_TRACE) 2047 ic_printf(vap->iv_ic, "%s: obss %p ni_drv_data %p " 2048 "ni %p ni_drv_data %p\n", __func__, 2049 obss, (obss != NULL) ? obss->ni_drv_data : NULL, 2050 ni, (ni != NULL) ? ni->ni_drv_data : NULL); 2051 #endif 2052 2053 /* Nothing to copy from. Just return. */ 2054 if (obss == NULL || obss->ni_drv_data == NULL) 2055 goto out; 2056 2057 /* Nothing to copy to. Just return. */ 2058 IMPROVE("clearing the obss might still be needed?"); 2059 if (ni == NULL) 2060 goto out; 2061 2062 /* Nothing changed? panic? */ 2063 if (obss == ni) 2064 goto out; 2065 2066 lsta = obss->ni_drv_data; 2067 obss->ni_drv_data = ni->ni_drv_data; 2068 ni->ni_drv_data = lsta; 2069 if (lsta != NULL) { 2070 lsta->ni = ni; 2071 sta = LSTA_TO_STA(lsta); 2072 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2073 } 2074 lsta = obss->ni_drv_data; 2075 if (lsta != NULL) { 2076 lsta->ni = obss; 2077 sta = LSTA_TO_STA(lsta); 2078 IEEE80211_ADDR_COPY(sta->addr, lsta->ni->ni_macaddr); 2079 } 2080 2081 out: 2082 lvif = VAP_TO_LVIF(vap); 2083 return (lvif->iv_update_bss(vap, ni)); 2084 } 2085 2086 static int 2087 lkpi_ic_wme_update(struct ieee80211com *ic) 2088 { 2089 /* This needs queuing and go at the right moment. */ 2090 #ifdef WITH_WME_UPDATE 2091 struct ieee80211vap *vap; 2092 struct lkpi_hw *lhw; 2093 struct ieee80211_hw *hw; 2094 struct lkpi_vif *lvif; 2095 struct ieee80211_vif *vif; 2096 struct chanAccParams chp; 2097 struct wmeParams wmeparr[WME_NUM_AC]; 2098 struct ieee80211_tx_queue_params txqp; 2099 enum ieee80211_bss_changed changed; 2100 int error; 2101 uint16_t ac; 2102 #endif 2103 2104 IMPROVE(); 2105 KASSERT(WME_NUM_AC == IEEE80211_NUM_ACS, ("%s: WME_NUM_AC %d != " 2106 "IEEE80211_NUM_ACS %d\n", __func__, WME_NUM_AC, IEEE80211_NUM_ACS)); 2107 2108 #ifdef WITH_WME_UPDATE 2109 vap = TAILQ_FIRST(&ic->ic_vaps); 2110 if (vap == NULL) 2111 return (0); 2112 2113 /* We should factor this out into per-vap (*wme_update). */ 2114 lhw = ic->ic_softc; 2115 if (lhw->ops->conf_tx == NULL) 2116 return (0); 2117 2118 /* XXX-BZ check amount of hw queues */ 2119 hw = LHW_TO_HW(lhw); 2120 lvif = VAP_TO_LVIF(vap); 2121 vif = LVIF_TO_VIF(lvif); 2122 2123 ieee80211_wme_ic_getparams(ic, &chp); 2124 IEEE80211_LOCK(ic); 2125 for (ac = 0; ac < WME_NUM_AC; ac++) 2126 wmeparr[ac] = chp.cap_wmeParams[ac]; 2127 IEEE80211_UNLOCK(ic); 2128 2129 /* Configure tx queues (conf_tx) & send BSS_CHANGED_QOS. */ 2130 LKPI_80211_LHW_LOCK(lhw); 2131 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 2132 struct wmeParams *wmep; 2133 2134 /* XXX-BZ should keep this in lvif? */ 2135 wmep = &wmeparr[ac]; 2136 bzero(&txqp, sizeof(txqp)); 2137 txqp.cw_min = wmep->wmep_logcwmin; 2138 txqp.cw_max = wmep->wmep_logcwmax; 2139 txqp.txop = wmep->wmep_txopLimit; 2140 txqp.aifs = wmep->wmep_aifsn; 2141 error = lkpi_80211_mo_conf_tx(hw, vif, ac, &txqp); 2142 if (error != 0) 2143 printf("%s: conf_tx ac %u failed %d\n", 2144 __func__, ac, error); 2145 } 2146 LKPI_80211_LHW_UNLOCK(lhw); 2147 changed = BSS_CHANGED_QOS; 2148 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2149 #endif 2150 2151 return (0); 2152 } 2153 2154 static struct ieee80211vap * 2155 lkpi_ic_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], 2156 int unit, enum ieee80211_opmode opmode, int flags, 2157 const uint8_t bssid[IEEE80211_ADDR_LEN], 2158 const uint8_t mac[IEEE80211_ADDR_LEN]) 2159 { 2160 struct lkpi_hw *lhw; 2161 struct ieee80211_hw *hw; 2162 struct lkpi_vif *lvif; 2163 struct ieee80211vap *vap; 2164 struct ieee80211_vif *vif; 2165 enum ieee80211_bss_changed changed; 2166 size_t len; 2167 int error; 2168 2169 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* 1 so far. Add <n> once this works. */ 2170 return (NULL); 2171 2172 lhw = ic->ic_softc; 2173 hw = LHW_TO_HW(lhw); 2174 2175 len = sizeof(*lvif); 2176 len += hw->vif_data_size; /* vif->drv_priv */ 2177 2178 lvif = malloc(len, M_80211_VAP, M_WAITOK | M_ZERO); 2179 mtx_init(&lvif->mtx, "lvif", NULL, MTX_DEF); 2180 TAILQ_INIT(&lvif->lsta_head); 2181 vap = LVIF_TO_VAP(lvif); 2182 2183 vif = LVIF_TO_VIF(lvif); 2184 memcpy(vif->addr, mac, IEEE80211_ADDR_LEN); 2185 vif->p2p = false; 2186 vif->probe_req_reg = false; 2187 vif->type = lkpi_opmode_to_vif_type(opmode); 2188 lvif->wdev.iftype = vif->type; 2189 /* Need to fill in other fields as well. */ 2190 IMPROVE(); 2191 2192 /* XXX-BZ hardcoded for now! */ 2193 #if 1 2194 vif->chanctx_conf = NULL; 2195 vif->bss_conf.idle = true; 2196 vif->bss_conf.ps = false; 2197 vif->bss_conf.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; 2198 vif->bss_conf.use_short_preamble = false; /* vap->iv_flags IEEE80211_F_SHPREAMBLE */ 2199 vif->bss_conf.use_short_slot = false; /* vap->iv_flags IEEE80211_F_SHSLOT */ 2200 vif->bss_conf.qos = false; 2201 vif->bss_conf.use_cts_prot = false; /* vap->iv_protmode */ 2202 vif->bss_conf.ht_operation_mode = IEEE80211_HT_OP_MODE_PROTECTION_NONE; 2203 vif->bss_conf.assoc = false; 2204 vif->bss_conf.aid = 0; 2205 #endif 2206 #if 0 2207 vif->bss_conf.dtim_period = 0; /* IEEE80211_DTIM_DEFAULT ; must stay 0. */ 2208 IEEE80211_ADDR_COPY(vif->bss_conf.bssid, bssid); 2209 vif->bss_conf.beacon_int = ic->ic_bintval; 2210 /* iwlwifi bug. */ 2211 if (vif->bss_conf.beacon_int < 16) 2212 vif->bss_conf.beacon_int = 16; 2213 #endif 2214 IMPROVE(); 2215 2216 error = lkpi_80211_mo_start(hw); 2217 if (error != 0) { 2218 printf("%s: failed to start hw: %d\n", __func__, error); 2219 mtx_destroy(&lvif->mtx); 2220 free(lvif, M_80211_VAP); 2221 return (NULL); 2222 } 2223 2224 error = lkpi_80211_mo_add_interface(hw, vif); 2225 if (error != 0) { 2226 IMPROVE(); /* XXX-BZ mo_stop()? */ 2227 printf("%s: failed to add interface: %d\n", __func__, error); 2228 mtx_destroy(&lvif->mtx); 2229 free(lvif, M_80211_VAP); 2230 return (NULL); 2231 } 2232 2233 LKPI_80211_LHW_LVIF_LOCK(lhw); 2234 TAILQ_INSERT_TAIL(&lhw->lvif_head, lvif, lvif_entry); 2235 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2236 2237 /* Set bss_info. */ 2238 changed = 0; 2239 lkpi_80211_mo_bss_info_changed(hw, vif, &vif->bss_conf, changed); 2240 2241 /* conf_tx setup; default WME? */ 2242 2243 /* Force MC init. */ 2244 lkpi_update_mcast_filter(ic, true); 2245 2246 IMPROVE(); 2247 2248 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid); 2249 2250 /* Override with LinuxKPI method so we can drive mac80211/cfg80211. */ 2251 lvif->iv_newstate = vap->iv_newstate; 2252 vap->iv_newstate = lkpi_iv_newstate; 2253 lvif->iv_update_bss = vap->iv_update_bss; 2254 vap->iv_update_bss = lkpi_iv_update_bss; 2255 2256 /* Key management. */ 2257 if (lhw->ops->set_key != NULL) { 2258 #ifdef TRY_HW_CRYPTO 2259 vap->iv_key_set = lkpi_iv_key_set; 2260 vap->iv_key_delete = lkpi_iv_key_delete; 2261 #endif 2262 } 2263 2264 ieee80211_ratectl_init(vap); 2265 2266 /* Complete setup. */ 2267 ieee80211_vap_attach(vap, ieee80211_media_change, 2268 ieee80211_media_status, mac); 2269 2270 if (hw->max_listen_interval == 0) 2271 hw->max_listen_interval = 7 * (ic->ic_lintval / ic->ic_bintval); 2272 hw->conf.listen_interval = hw->max_listen_interval; 2273 ic->ic_set_channel(ic); 2274 2275 /* XXX-BZ do we need to be able to update these? */ 2276 hw->wiphy->frag_threshold = vap->iv_fragthreshold; 2277 lkpi_80211_mo_set_frag_threshold(hw, vap->iv_fragthreshold); 2278 hw->wiphy->rts_threshold = vap->iv_rtsthreshold; 2279 lkpi_80211_mo_set_rts_threshold(hw, vap->iv_rtsthreshold); 2280 /* any others? */ 2281 IMPROVE(); 2282 2283 return (vap); 2284 } 2285 2286 static void 2287 lkpi_ic_vap_delete(struct ieee80211vap *vap) 2288 { 2289 struct ieee80211com *ic; 2290 struct lkpi_hw *lhw; 2291 struct ieee80211_hw *hw; 2292 struct lkpi_vif *lvif; 2293 struct ieee80211_vif *vif; 2294 2295 lvif = VAP_TO_LVIF(vap); 2296 vif = LVIF_TO_VIF(lvif); 2297 ic = vap->iv_ic; 2298 lhw = ic->ic_softc; 2299 hw = LHW_TO_HW(lhw); 2300 2301 LKPI_80211_LHW_LVIF_LOCK(lhw); 2302 TAILQ_REMOVE(&lhw->lvif_head, lvif, lvif_entry); 2303 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 2304 lkpi_80211_mo_remove_interface(hw, vif); 2305 2306 ieee80211_ratectl_deinit(vap); 2307 ieee80211_vap_detach(vap); 2308 mtx_destroy(&lvif->mtx); 2309 free(lvif, M_80211_VAP); 2310 } 2311 2312 static void 2313 lkpi_ic_update_mcast(struct ieee80211com *ic) 2314 { 2315 2316 lkpi_update_mcast_filter(ic, false); 2317 TRACEOK(); 2318 } 2319 2320 static void 2321 lkpi_ic_update_promisc(struct ieee80211com *ic) 2322 { 2323 2324 UNIMPLEMENTED; 2325 } 2326 2327 static void 2328 lkpi_ic_update_chw(struct ieee80211com *ic) 2329 { 2330 2331 UNIMPLEMENTED; 2332 } 2333 2334 /* Start / stop device. */ 2335 static void 2336 lkpi_ic_parent(struct ieee80211com *ic) 2337 { 2338 struct lkpi_hw *lhw; 2339 struct ieee80211_hw *hw; 2340 int error; 2341 bool start_all; 2342 2343 IMPROVE(); 2344 2345 lhw = ic->ic_softc; 2346 hw = LHW_TO_HW(lhw); 2347 start_all = false; 2348 2349 if (ic->ic_nrunning > 0) { 2350 error = lkpi_80211_mo_start(hw); 2351 if (error == 0) 2352 start_all = true; 2353 } else { 2354 lkpi_80211_mo_stop(hw); 2355 } 2356 2357 if (start_all) 2358 ieee80211_start_all(ic); 2359 } 2360 2361 bool 2362 linuxkpi_ieee80211_is_ie_id_in_ie_buf(const u8 ie, const u8 *ie_ids, 2363 size_t ie_ids_len) 2364 { 2365 int i; 2366 2367 for (i = 0; i < ie_ids_len; i++) { 2368 if (ie == *ie_ids) 2369 return (true); 2370 } 2371 2372 return (false); 2373 } 2374 2375 /* Return true if skipped; false if error. */ 2376 bool 2377 linuxkpi_ieee80211_ie_advance(size_t *xp, const u8 *ies, size_t ies_len) 2378 { 2379 size_t x; 2380 uint8_t l; 2381 2382 x = *xp; 2383 2384 KASSERT(x < ies_len, ("%s: x %zu ies_len %zu ies %p\n", 2385 __func__, x, ies_len, ies)); 2386 l = ies[x + 1]; 2387 x += 2 + l; 2388 2389 if (x > ies_len) 2390 return (false); 2391 2392 *xp = x; 2393 return (true); 2394 } 2395 2396 static uint8_t * 2397 lkpi_scan_ies_add(uint8_t *p, struct ieee80211_scan_ies *scan_ies, 2398 uint32_t band_mask, struct ieee80211vap *vap, struct ieee80211_hw *hw) 2399 { 2400 struct ieee80211_supported_band *supband; 2401 struct linuxkpi_ieee80211_channel *channels; 2402 const struct ieee80211_channel *chan; 2403 const struct ieee80211_rateset *rs; 2404 uint8_t *pb; 2405 int band, i; 2406 2407 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2408 if ((band_mask & (1 << band)) == 0) 2409 continue; 2410 2411 supband = hw->wiphy->bands[band]; 2412 /* 2413 * This should not happen; 2414 * band_mask is a bitmask of valid bands to scan on. 2415 */ 2416 if (supband == NULL || supband->n_channels == 0) 2417 continue; 2418 2419 /* Find a first channel to get the mode and rates from. */ 2420 channels = supband->channels; 2421 chan = NULL; 2422 for (i = 0; i < supband->n_channels; i++) { 2423 2424 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 2425 continue; 2426 2427 chan = ieee80211_find_channel(vap->iv_ic, 2428 channels[i].center_freq, 0); 2429 if (chan != NULL) 2430 break; 2431 } 2432 2433 /* This really should not happen. */ 2434 if (chan == NULL) 2435 continue; 2436 2437 pb = p; 2438 rs = ieee80211_get_suprates(vap->iv_ic, chan); /* calls chan2mode */ 2439 p = ieee80211_add_rates(p, rs); 2440 p = ieee80211_add_xrates(p, rs); 2441 2442 scan_ies->ies[band] = pb; 2443 scan_ies->len[band] = p - pb; 2444 } 2445 2446 /* Add common_ies */ 2447 pb = p; 2448 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2449 vap->iv_wpa_ie != NULL) { 2450 memcpy(p, vap->iv_wpa_ie, 2 + vap->iv_wpa_ie[1]); 2451 p += 2 + vap->iv_wpa_ie[1]; 2452 } 2453 if (vap->iv_appie_probereq != NULL) { 2454 memcpy(p, vap->iv_appie_probereq->ie_data, 2455 vap->iv_appie_probereq->ie_len); 2456 p += vap->iv_appie_probereq->ie_len; 2457 } 2458 scan_ies->common_ies = pb; 2459 scan_ies->common_ie_len = p - pb; 2460 2461 return (p); 2462 } 2463 2464 static void 2465 lkpi_ic_scan_start(struct ieee80211com *ic) 2466 { 2467 struct lkpi_hw *lhw; 2468 struct ieee80211_hw *hw; 2469 struct lkpi_vif *lvif; 2470 struct ieee80211_vif *vif; 2471 struct ieee80211_scan_state *ss; 2472 struct ieee80211vap *vap; 2473 int error; 2474 2475 lhw = ic->ic_softc; 2476 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) != 0) { 2477 /* A scan is still running. */ 2478 return; 2479 } 2480 2481 ss = ic->ic_scan; 2482 vap = ss->ss_vap; 2483 if (vap->iv_state != IEEE80211_S_SCAN) { 2484 IMPROVE("We need to be able to scan if not in S_SCAN"); 2485 return; 2486 } 2487 2488 hw = LHW_TO_HW(lhw); 2489 if ((vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) == 0) { 2490 sw_scan: 2491 lvif = VAP_TO_LVIF(vap); 2492 vif = LVIF_TO_VIF(lvif); 2493 2494 if (vap->iv_state == IEEE80211_S_SCAN) 2495 lkpi_hw_conf_idle(hw, false); 2496 2497 lkpi_80211_mo_sw_scan_start(hw, vif, vif->addr); 2498 /* net80211::scan_start() handled PS for us. */ 2499 IMPROVE(); 2500 /* XXX Also means it is too late to flush queues? 2501 * need to check iv_sta_ps or overload? */ 2502 /* XXX want to adjust ss end time/ maxdwell? */ 2503 2504 } else { 2505 struct ieee80211_channel *c; 2506 struct ieee80211_scan_request *hw_req; 2507 struct linuxkpi_ieee80211_channel *lc, **cpp; 2508 struct cfg80211_ssid *ssids; 2509 struct cfg80211_scan_6ghz_params *s6gp; 2510 size_t chan_len, nchan, ssids_len, s6ghzlen; 2511 int band, i, ssid_count, common_ie_len; 2512 uint32_t band_mask; 2513 uint8_t *ie, *ieend; 2514 2515 if (!ieee80211_hw_check(hw, SINGLE_SCAN_ON_ALL_BANDS)) { 2516 IMPROVE("individual band scans not yet supported"); 2517 /* In theory net80211 would have to drive this. */ 2518 return; 2519 } 2520 2521 ssid_count = min(ss->ss_nssid, hw->wiphy->max_scan_ssids); 2522 ssids_len = ssid_count * sizeof(*ssids); 2523 s6ghzlen = 0 * (sizeof(*s6gp)); /* XXX-BZ */ 2524 2525 band_mask = 0; 2526 nchan = 0; 2527 for (i = ss->ss_next; i < ss->ss_last; i++) { 2528 nchan++; 2529 band = lkpi_net80211_chan_to_nl80211_band( 2530 ss->ss_chans[ss->ss_next + i]); 2531 band_mask |= (1 << band); 2532 } 2533 chan_len = nchan * (sizeof(lc) + sizeof(*lc)); 2534 2535 common_ie_len = 0; 2536 if ((vap->iv_flags & IEEE80211_F_WPA1) != 0 && 2537 vap->iv_wpa_ie != NULL) 2538 common_ie_len += vap->iv_wpa_ie[1]; 2539 if (vap->iv_appie_probereq != NULL) 2540 common_ie_len += vap->iv_appie_probereq->ie_len; 2541 2542 /* We would love to check this at an earlier stage... */ 2543 if (common_ie_len > hw->wiphy->max_scan_ie_len) { 2544 ic_printf(ic, "WARNING: %s: common_ie_len %d > " 2545 "wiphy->max_scan_ie_len %d\n", __func__, 2546 common_ie_len, hw->wiphy->max_scan_ie_len); 2547 } 2548 2549 KASSERT(lhw->hw_req == NULL, ("%s: ic %p lhw %p hw_req %p " 2550 "!= NULL\n", __func__, ic, lhw, lhw->hw_req)); 2551 2552 lhw->hw_req = hw_req = malloc(sizeof(*hw_req) + ssids_len + 2553 s6ghzlen + chan_len + lhw->supbands * lhw->scan_ie_len + 2554 common_ie_len, M_LKPI80211, M_WAITOK | M_ZERO); 2555 2556 hw_req->req.flags = 0; /* XXX ??? */ 2557 /* hw_req->req.wdev */ 2558 hw_req->req.wiphy = hw->wiphy; 2559 hw_req->req.no_cck = false; /* XXX */ 2560 #if 0 2561 /* This seems to pessimise default scanning behaviour. */ 2562 hw_req->req.duration_mandatory = TICKS_2_USEC(ss->ss_mindwell); 2563 hw_req->req.duration = TICKS_2_USEC(ss->ss_maxdwell); 2564 #endif 2565 #ifdef __notyet__ 2566 hw_req->req.flags |= NL80211_SCAN_FLAG_RANDOM_ADDR; 2567 memcpy(hw_req->req.mac_addr, xxx, IEEE80211_ADDR_LEN); 2568 memset(hw_req->req.mac_addr_mask, 0xxx, IEEE80211_ADDR_LEN); 2569 #endif 2570 2571 hw_req->req.n_channels = nchan; 2572 cpp = (struct linuxkpi_ieee80211_channel **)(hw_req + 1); 2573 lc = (struct linuxkpi_ieee80211_channel *)(cpp + nchan); 2574 for (i = 0; i < nchan; i++) { 2575 *(cpp + i) = 2576 (struct linuxkpi_ieee80211_channel *)(lc + i); 2577 } 2578 for (i = 0; i < nchan; i++) { 2579 c = ss->ss_chans[ss->ss_next + i]; 2580 2581 lc->hw_value = c->ic_ieee; 2582 lc->center_freq = c->ic_freq; 2583 /* lc->flags */ 2584 lc->band = lkpi_net80211_chan_to_nl80211_band(c); 2585 lc->max_power = c->ic_maxpower; 2586 /* lc-> ... */ 2587 lc++; 2588 } 2589 2590 hw_req->req.n_ssids = ssid_count; 2591 if (hw_req->req.n_ssids > 0) { 2592 ssids = (struct cfg80211_ssid *)lc; 2593 hw_req->req.ssids = ssids; 2594 for (i = 0; i < ssid_count; i++) { 2595 ssids->ssid_len = ss->ss_ssid[i].len; 2596 memcpy(ssids->ssid, ss->ss_ssid[i].ssid, 2597 ss->ss_ssid[i].len); 2598 ssids++; 2599 } 2600 s6gp = (struct cfg80211_scan_6ghz_params *)ssids; 2601 } else { 2602 s6gp = (struct cfg80211_scan_6ghz_params *)lc; 2603 } 2604 2605 /* 6GHz one day. */ 2606 hw_req->req.n_6ghz_params = 0; 2607 hw_req->req.scan_6ghz_params = NULL; 2608 hw_req->req.scan_6ghz = false; /* Weird boolean; not what you think. */ 2609 /* s6gp->... */ 2610 2611 ie = ieend = (uint8_t *)s6gp; 2612 /* Copy per-band IEs, copy common IEs */ 2613 ieend = lkpi_scan_ies_add(ie, &hw_req->ies, band_mask, vap, hw); 2614 hw_req->req.ie = ie; 2615 hw_req->req.ie_len = ieend - ie; 2616 2617 lvif = VAP_TO_LVIF(vap); 2618 vif = LVIF_TO_VIF(lvif); 2619 error = lkpi_80211_mo_hw_scan(hw, vif, hw_req); 2620 if (error != 0) { 2621 ieee80211_cancel_scan(vap); 2622 2623 free(hw_req, M_LKPI80211); 2624 lhw->hw_req = NULL; 2625 2626 /* 2627 * XXX-SIGH magic number. 2628 * rtw88 has a magic "return 1" if offloading scan is 2629 * not possible. Fall back to sw scan in that case. 2630 */ 2631 if (error == 1) { 2632 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; 2633 ieee80211_start_scan(vap, 2634 IEEE80211_SCAN_ACTIVE | 2635 IEEE80211_SCAN_NOPICK | 2636 IEEE80211_SCAN_ONCE, 2637 IEEE80211_SCAN_FOREVER, 2638 ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), 2639 ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), 2640 vap->iv_des_nssid, vap->iv_des_ssid); 2641 goto sw_scan; 2642 } 2643 2644 ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", 2645 __func__, error); 2646 } 2647 } 2648 } 2649 2650 static void 2651 lkpi_ic_scan_end(struct ieee80211com *ic) 2652 { 2653 struct lkpi_hw *lhw; 2654 struct ieee80211_scan_state *ss; 2655 struct ieee80211vap *vap; 2656 2657 lhw = ic->ic_softc; 2658 if ((lhw->scan_flags & LKPI_SCAN_RUNNING) == 0) { 2659 return; 2660 } 2661 2662 ss = ic->ic_scan; 2663 vap = ss->ss_vap; 2664 if (vap->iv_flags_ext & IEEE80211_FEXT_SCAN_OFFLOAD) { 2665 /* Nothing to do. */ 2666 } else { 2667 struct ieee80211_hw *hw; 2668 struct lkpi_vif *lvif; 2669 struct ieee80211_vif *vif; 2670 2671 hw = LHW_TO_HW(lhw); 2672 lvif = VAP_TO_LVIF(vap); 2673 vif = LVIF_TO_VIF(lvif); 2674 lkpi_80211_mo_sw_scan_complete(hw, vif); 2675 2676 /* Send PS to stop buffering if n80211 does not for us? */ 2677 2678 if (vap->iv_state == IEEE80211_S_SCAN) 2679 lkpi_hw_conf_idle(hw, true); 2680 } 2681 } 2682 2683 static void 2684 lkpi_ic_set_channel(struct ieee80211com *ic) 2685 { 2686 struct lkpi_hw *lhw; 2687 struct ieee80211_hw *hw; 2688 struct ieee80211_channel *c; 2689 struct linuxkpi_ieee80211_channel *chan; 2690 int error; 2691 2692 lhw = ic->ic_softc; 2693 2694 /* If we do not support (*config)() save us the work. */ 2695 if (lhw->ops->config == NULL) 2696 return; 2697 2698 c = ic->ic_curchan; 2699 if (c == NULL || c == IEEE80211_CHAN_ANYC) { 2700 ic_printf(ic, "%s: c %p ops->config %p\n", __func__, 2701 c, lhw->ops->config); 2702 return; 2703 } 2704 2705 chan = lkpi_find_lkpi80211_chan(lhw, c); 2706 if (chan == NULL) { 2707 ic_printf(ic, "%s: c %p chan %p\n", __func__, 2708 c, chan); 2709 return; 2710 } 2711 2712 /* XXX max power for scanning? */ 2713 IMPROVE(); 2714 2715 hw = LHW_TO_HW(lhw); 2716 cfg80211_chandef_create(&hw->conf.chandef, chan, 2717 NL80211_CHAN_NO_HT); 2718 2719 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_CHANNEL); 2720 if (error != 0 && error != EOPNOTSUPP) { 2721 ic_printf(ic, "ERROR: %s: config %#0x returned %d\n", 2722 __func__, IEEE80211_CONF_CHANGE_CHANNEL, error); 2723 /* XXX should we unroll to the previous chandef? */ 2724 IMPROVE(); 2725 } else { 2726 /* Update radiotap channels as well. */ 2727 lhw->rtap_tx.wt_chan_freq = htole16(c->ic_freq); 2728 lhw->rtap_tx.wt_chan_flags = htole16(c->ic_flags); 2729 lhw->rtap_rx.wr_chan_freq = htole16(c->ic_freq); 2730 lhw->rtap_rx.wr_chan_flags = htole16(c->ic_flags); 2731 } 2732 2733 /* Currently PS is hard coded off! Not sure it belongs here. */ 2734 IMPROVE(); 2735 if (ieee80211_hw_check(hw, SUPPORTS_PS) && 2736 (hw->conf.flags & IEEE80211_CONF_PS) != 0) { 2737 hw->conf.flags &= ~IEEE80211_CONF_PS; 2738 error = lkpi_80211_mo_config(hw, IEEE80211_CONF_CHANGE_PS); 2739 if (error != 0 && error != EOPNOTSUPP) 2740 ic_printf(ic, "ERROR: %s: config %#0x returned " 2741 "%d\n", __func__, IEEE80211_CONF_CHANGE_PS, 2742 error); 2743 } 2744 } 2745 2746 static struct ieee80211_node * 2747 lkpi_ic_node_alloc(struct ieee80211vap *vap, 2748 const uint8_t mac[IEEE80211_ADDR_LEN]) 2749 { 2750 struct ieee80211com *ic; 2751 struct lkpi_hw *lhw; 2752 struct ieee80211_node *ni; 2753 struct ieee80211_hw *hw; 2754 struct lkpi_sta *lsta; 2755 2756 ic = vap->iv_ic; 2757 lhw = ic->ic_softc; 2758 2759 /* We keep allocations de-coupled so we can deal with the two worlds. */ 2760 if (lhw->ic_node_alloc == NULL) 2761 return (NULL); 2762 2763 ni = lhw->ic_node_alloc(vap, mac); 2764 if (ni == NULL) 2765 return (NULL); 2766 2767 hw = LHW_TO_HW(lhw); 2768 lsta = lkpi_lsta_alloc(vap, mac, hw, ni); 2769 if (lsta == NULL) { 2770 if (lhw->ic_node_free != NULL) 2771 lhw->ic_node_free(ni); 2772 return (NULL); 2773 } 2774 2775 return (ni); 2776 } 2777 2778 static int 2779 lkpi_ic_node_init(struct ieee80211_node *ni) 2780 { 2781 struct ieee80211com *ic; 2782 struct lkpi_hw *lhw; 2783 struct lkpi_sta *lsta; 2784 int error; 2785 2786 ic = ni->ni_ic; 2787 lhw = ic->ic_softc; 2788 2789 if (lhw->ic_node_init != NULL) { 2790 error = lhw->ic_node_init(ni); 2791 if (error != 0) 2792 return (error); 2793 } 2794 2795 lsta = ni->ni_drv_data; 2796 2797 /* Now take the reference before linking it to the table. */ 2798 lsta->ni = ieee80211_ref_node(ni); 2799 2800 /* XXX-BZ Sync other state over. */ 2801 IMPROVE(); 2802 2803 return (0); 2804 } 2805 2806 static void 2807 lkpi_ic_node_cleanup(struct ieee80211_node *ni) 2808 { 2809 struct ieee80211com *ic; 2810 struct lkpi_hw *lhw; 2811 2812 ic = ni->ni_ic; 2813 lhw = ic->ic_softc; 2814 2815 /* XXX-BZ remove from driver, ... */ 2816 IMPROVE(); 2817 2818 if (lhw->ic_node_cleanup != NULL) 2819 lhw->ic_node_cleanup(ni); 2820 } 2821 2822 static void 2823 lkpi_ic_node_free(struct ieee80211_node *ni) 2824 { 2825 struct ieee80211com *ic; 2826 struct lkpi_hw *lhw; 2827 struct lkpi_sta *lsta; 2828 2829 ic = ni->ni_ic; 2830 lhw = ic->ic_softc; 2831 lsta = ni->ni_drv_data; 2832 if (lsta == NULL) 2833 goto out; 2834 2835 /* XXX-BZ free resources, ... */ 2836 IMPROVE(); 2837 2838 /* Flush mbufq (make sure to release ni refs!). */ 2839 #ifdef __notyet__ 2840 KASSERT(mbufq_len(&lsta->txq) == 0, ("%s: lsta %p has txq len %d != 0\n", 2841 __func__, lsta, mbufq_len(&lsta->txq))); 2842 #endif 2843 /* Drain taskq. */ 2844 2845 /* Drain sta->txq[] */ 2846 mtx_destroy(&lsta->txq_mtx); 2847 2848 /* Remove lsta if added_to_drv. */ 2849 2850 /* Remove lsta from vif */ 2851 /* Remove ref from lsta node... */ 2852 /* Free lsta. */ 2853 lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); 2854 2855 out: 2856 if (lhw->ic_node_free != NULL) 2857 lhw->ic_node_free(ni); 2858 } 2859 2860 static int 2861 lkpi_ic_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2862 const struct ieee80211_bpf_params *params __unused) 2863 { 2864 struct lkpi_sta *lsta; 2865 2866 lsta = ni->ni_drv_data; 2867 2868 /* Queue the packet and enqueue the task to handle it. */ 2869 LKPI_80211_LSTA_LOCK(lsta); 2870 mbufq_enqueue(&lsta->txq, m); 2871 LKPI_80211_LSTA_UNLOCK(lsta); 2872 2873 #ifdef LINUXKPI_DEBUG_80211 2874 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 2875 printf("%s:%d lsta %p ni %p %6D mbuf_qlen %d\n", 2876 __func__, __LINE__, lsta, ni, ni->ni_macaddr, ":", 2877 mbufq_len(&lsta->txq)); 2878 #endif 2879 2880 taskqueue_enqueue(taskqueue_thread, &lsta->txq_task); 2881 return (0); 2882 } 2883 2884 static void 2885 lkpi_80211_txq_tx_one(struct lkpi_sta *lsta, struct mbuf *m) 2886 { 2887 struct ieee80211_node *ni; 2888 struct ieee80211_frame *wh; 2889 struct ieee80211_key *k; 2890 struct sk_buff *skb; 2891 struct ieee80211com *ic; 2892 struct lkpi_hw *lhw; 2893 struct ieee80211_hw *hw; 2894 struct lkpi_vif *lvif; 2895 struct ieee80211_vif *vif; 2896 struct ieee80211_channel *c; 2897 struct ieee80211_tx_control control; 2898 struct ieee80211_tx_info *info; 2899 struct ieee80211_sta *sta; 2900 void *buf; 2901 int ac; 2902 2903 M_ASSERTPKTHDR(m); 2904 #ifdef LINUXKPI_DEBUG_80211 2905 if (linuxkpi_debug_80211 & D80211_TRACE_TX_DUMP) 2906 hexdump(mtod(m, const void *), m->m_len, "RAW TX (plain) ", 0); 2907 #endif 2908 2909 ni = lsta->ni; 2910 #ifndef TRY_HW_CRYPTO 2911 /* Encrypt the frame if need be; XXX-BZ info->control.hw_key. */ 2912 wh = mtod(m, struct ieee80211_frame *); 2913 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 2914 /* Retrieve key for TX && do software encryption. */ 2915 k = ieee80211_crypto_encap(ni, m); 2916 if (k == NULL) { 2917 ieee80211_free_node(ni); 2918 m_freem(m); 2919 return; 2920 } 2921 } 2922 #endif 2923 2924 ic = ni->ni_ic; 2925 lhw = ic->ic_softc; 2926 hw = LHW_TO_HW(lhw); 2927 c = ni->ni_chan; 2928 2929 if (ieee80211_radiotap_active_vap(ni->ni_vap)) { 2930 struct lkpi_radiotap_tx_hdr *rtap; 2931 2932 rtap = &lhw->rtap_tx; 2933 rtap->wt_flags = 0; 2934 if (k != NULL) 2935 rtap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2936 if (m->m_flags & M_FRAG) 2937 rtap->wt_flags |= IEEE80211_RADIOTAP_F_FRAG; 2938 IMPROVE(); 2939 rtap->wt_rate = 0; 2940 if (c != NULL && c != IEEE80211_CHAN_ANYC) { 2941 rtap->wt_chan_freq = htole16(c->ic_freq); 2942 rtap->wt_chan_flags = htole16(c->ic_flags); 2943 } 2944 2945 ieee80211_radiotap_tx(ni->ni_vap, m); 2946 } 2947 2948 /* 2949 * net80211 should handle hw->extra_tx_headroom. 2950 * Though for as long as we are copying we don't mind. 2951 * XXX-BZ rtw88 asks for too much headroom for ipv6+tcp: 2952 * https://lists.freebsd.org/archives/freebsd-transport/2022-February/000012.html 2953 */ 2954 skb = dev_alloc_skb(hw->extra_tx_headroom + m->m_pkthdr.len); 2955 if (skb == NULL) { 2956 printf("XXX ERROR %s: skb alloc failed\n", __func__); 2957 ieee80211_free_node(ni); 2958 m_freem(m); 2959 return; 2960 } 2961 skb_reserve(skb, hw->extra_tx_headroom); 2962 2963 /* XXX-BZ we need a SKB version understanding mbuf. */ 2964 /* Save the mbuf for ieee80211_tx_complete(). */ 2965 skb->m_free_func = lkpi_ieee80211_free_skb_mbuf; 2966 skb->m = m; 2967 #if 0 2968 skb_put_data(skb, m->m_data, m->m_pkthdr.len); 2969 #else 2970 buf = skb_put(skb, m->m_pkthdr.len); 2971 m_copydata(m, 0, m->m_pkthdr.len, buf); 2972 #endif 2973 /* Save the ni. */ 2974 m->m_pkthdr.PH_loc.ptr = ni; 2975 2976 lvif = VAP_TO_LVIF(ni->ni_vap); 2977 vif = LVIF_TO_VIF(lvif); 2978 2979 /* XXX-BZ review this at some point [4] vs. [8] vs. [16](TID). */ 2980 ac = M_WME_GETAC(m); 2981 skb->priority = WME_AC_TO_TID(ac); 2982 ac = lkpi_ac_net_to_l80211(ac); 2983 skb_set_queue_mapping(skb, ac); 2984 2985 info = IEEE80211_SKB_CB(skb); 2986 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 2987 /* Slight delay; probably only happens on scanning so fine? */ 2988 if (c == NULL || c == IEEE80211_CHAN_ANYC) 2989 c = ic->ic_curchan; 2990 info->band = lkpi_net80211_chan_to_nl80211_band(c); 2991 info->hw_queue = ac; /* XXX-BZ is this correct? */ 2992 if (m->m_flags & M_EAPOL) 2993 info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO; 2994 info->control.vif = vif; 2995 /* XXX-BZ info->control.rates */ 2996 2997 lsta = lkpi_find_lsta_by_ni(lvif, ni); 2998 if (lsta != NULL) { 2999 sta = LSTA_TO_STA(lsta); 3000 #ifdef TRY_HW_CRYPTO 3001 info->control.hw_key = lsta->kc; 3002 #endif 3003 } else { 3004 sta = NULL; 3005 } 3006 3007 IMPROVE(); 3008 3009 if (sta != NULL) { 3010 struct lkpi_txq *ltxq; 3011 struct ieee80211_hdr *hdr; 3012 3013 hdr = (void *)skb->data; 3014 if (lsta->added_to_drv && 3015 !ieee80211_is_data_present(hdr->frame_control)) { 3016 if (sta->txq[IEEE80211_NUM_TIDS] != NULL) 3017 ltxq = TXQ_TO_LTXQ(sta->txq[IEEE80211_NUM_TIDS]); 3018 else 3019 goto ops_tx; 3020 } else if (lsta->added_to_drv) { 3021 ltxq = TXQ_TO_LTXQ(sta->txq[ac]); /* XXX-BZ re-check */ 3022 } else 3023 goto ops_tx; 3024 KASSERT(ltxq != NULL, ("%s: lsta %p sta %p m %p skb %p " 3025 "ltxq %p != NULL\n", __func__, lsta, sta, m, skb, ltxq)); 3026 3027 /* 3028 * We currently do not use queues but do direct TX. 3029 * The exception to the rule is initial packets, as we cannot 3030 * TX until queues are allocated (at least for iwlwifi). 3031 * So we wake_tx_queue in newstate and register any dequeue 3032 * calls. In the time until then we queue packets and 3033 * let the driver deal with them. 3034 */ 3035 #if 0 3036 if (!ltxq->seen_dequeue) { 3037 3038 /* Prevent an ordering problem, likely other issues. */ 3039 while (!skb_queue_empty(<xq->skbq)) { 3040 struct sk_buff *skb2; 3041 3042 skb2 = skb_dequeue(<xq->skbq); 3043 if (skb2 != NULL) { 3044 memset(&control, 0, sizeof(control)); 3045 control.sta = sta; 3046 lkpi_80211_mo_tx(hw, &control, skb2); 3047 } 3048 } 3049 goto ops_tx; 3050 } 3051 if (0 && ltxq->seen_dequeue && skb_queue_empty(<xq->skbq)) 3052 goto ops_tx; 3053 #endif 3054 3055 skb_queue_tail(<xq->skbq, skb); 3056 #ifdef LINUXKPI_DEBUG_80211 3057 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3058 printf("%s:%d mo_wake_tx_queue :: %d %u lsta %p sta %p " 3059 "ni %p %6D skb %p lxtq %p { qlen %u, ac %d tid %u } " 3060 "WAKE_TX_Q ac %d prio %u qmap %u\n", 3061 __func__, __LINE__, 3062 curthread->td_tid, (unsigned int)ticks, 3063 lsta, sta, ni, ni->ni_macaddr, ":", skb, ltxq, 3064 skb_queue_len(<xq->skbq), ltxq->txq.ac, 3065 ltxq->txq.tid, ac, skb->priority, skb->qmap); 3066 #endif 3067 lkpi_80211_mo_wake_tx_queue(hw, <xq->txq); 3068 return; 3069 } 3070 3071 ops_tx: 3072 #ifdef LINUXKPI_DEBUG_80211 3073 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3074 printf("%s:%d mo_tx :: lsta %p sta %p ni %p %6D skb %p " 3075 "TX ac %d prio %u qmap %u\n", 3076 __func__, __LINE__, lsta, sta, ni, ni->ni_macaddr, ":", 3077 skb, ac, skb->priority, skb->qmap); 3078 #endif 3079 memset(&control, 0, sizeof(control)); 3080 control.sta = sta; 3081 3082 lkpi_80211_mo_tx(hw, &control, skb); 3083 return; 3084 } 3085 3086 static void 3087 lkpi_80211_txq_task(void *ctx, int pending) 3088 { 3089 struct lkpi_sta *lsta; 3090 struct mbufq mq; 3091 struct mbuf *m; 3092 3093 lsta = ctx; 3094 3095 #ifdef LINUXKPI_DEBUG_80211 3096 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 3097 printf("%s:%d lsta %p ni %p %6D pending %d mbuf_qlen %d\n", 3098 __func__, __LINE__, lsta, lsta->ni, lsta->ni->ni_macaddr, ":", 3099 pending, mbufq_len(&lsta->txq)); 3100 #endif 3101 3102 mbufq_init(&mq, IFQ_MAXLEN); 3103 3104 LKPI_80211_LSTA_LOCK(lsta); 3105 mbufq_concat(&mq, &lsta->txq); 3106 LKPI_80211_LSTA_UNLOCK(lsta); 3107 3108 m = mbufq_dequeue(&mq); 3109 while (m != NULL) { 3110 lkpi_80211_txq_tx_one(lsta, m); 3111 m = mbufq_dequeue(&mq); 3112 } 3113 } 3114 3115 static int 3116 lkpi_ic_transmit(struct ieee80211com *ic, struct mbuf *m) 3117 { 3118 3119 /* XXX TODO */ 3120 IMPROVE(); 3121 3122 /* Quick and dirty cheating hack. */ 3123 struct ieee80211_node *ni; 3124 3125 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 3126 return (lkpi_ic_raw_xmit(ni, m, NULL)); 3127 } 3128 3129 static void 3130 lkpi_ic_getradiocaps(struct ieee80211com *ic, int maxchan, 3131 int *n, struct ieee80211_channel *c) 3132 { 3133 struct lkpi_hw *lhw; 3134 struct ieee80211_hw *hw; 3135 struct linuxkpi_ieee80211_channel *channels; 3136 uint8_t bands[IEEE80211_MODE_BYTES]; 3137 int chan_flags, error, i, nchans; 3138 3139 /* Channels */ 3140 lhw = ic->ic_softc; 3141 hw = LHW_TO_HW(lhw); 3142 3143 /* NL80211_BAND_2GHZ */ 3144 nchans = 0; 3145 if (hw->wiphy->bands[NL80211_BAND_2GHZ] != NULL) 3146 nchans = hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; 3147 if (nchans > 0) { 3148 memset(bands, 0, sizeof(bands)); 3149 chan_flags = 0; 3150 setbit(bands, IEEE80211_MODE_11B); 3151 /* XXX-BZ unclear how to check for 11g. */ 3152 setbit(bands, IEEE80211_MODE_11G); 3153 #ifdef __notyet__ 3154 if (hw->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.ht_supported) { 3155 setbit(bands, IEEE80211_MODE_11NG); 3156 chan_flags |= NET80211_CBW_FLAG_HT40; 3157 } 3158 #endif 3159 3160 channels = hw->wiphy->bands[NL80211_BAND_2GHZ]->channels; 3161 for (i = 0; i < nchans && *n < maxchan; i++) { 3162 uint32_t nflags = 0; 3163 int cflags = chan_flags; 3164 3165 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3166 printf("%s: %s: Skipping disabled chan " 3167 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3168 channels[i].hw_value, 3169 channels[i].center_freq, channels[i].flags); 3170 continue; 3171 } 3172 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3173 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3174 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3175 nflags |= IEEE80211_CHAN_DFS; 3176 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3177 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3178 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3179 cflags &= ~NET80211_CBW_FLAG_VHT80; 3180 /* XXX how to map the remaining enum ieee80211_channel_flags? */ 3181 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3182 cflags &= ~NET80211_CBW_FLAG_HT40; 3183 3184 error = ieee80211_add_channel_cbw(c, maxchan, n, 3185 channels[i].hw_value, channels[i].center_freq, 3186 channels[i].max_power, 3187 nflags, bands, chan_flags); 3188 /* net80211::ENOBUFS: *n >= maxchans */ 3189 if (error != 0 && error != ENOBUFS) 3190 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3191 "returned error %d\n", ic->ic_name, 3192 __func__, channels[i].hw_value, 3193 channels[i].center_freq, channels[i].flags, 3194 nflags, chan_flags, cflags, error); 3195 if (error != 0) 3196 break; 3197 } 3198 } 3199 3200 /* NL80211_BAND_5GHZ */ 3201 nchans = 0; 3202 if (hw->wiphy->bands[NL80211_BAND_5GHZ] != NULL) 3203 nchans = hw->wiphy->bands[NL80211_BAND_5GHZ]->n_channels; 3204 if (nchans > 0) { 3205 memset(bands, 0, sizeof(bands)); 3206 chan_flags = 0; 3207 setbit(bands, IEEE80211_MODE_11A); 3208 #ifdef __not_yet__ 3209 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.ht_supported) { 3210 setbit(bands, IEEE80211_MODE_11NA); 3211 chan_flags |= NET80211_CBW_FLAG_HT40; 3212 } 3213 if (hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.vht_supported){ 3214 3215 ic->ic_flags_ext |= IEEE80211_FEXT_VHT; 3216 ic->ic_vhtcaps = 3217 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap; 3218 3219 setbit(bands, IEEE80211_MODE_VHT_5GHZ); 3220 chan_flags |= NET80211_CBW_FLAG_VHT80; 3221 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ( 3222 ic->ic_vhtcaps)) 3223 chan_flags |= NET80211_CBW_FLAG_VHT160; 3224 if (IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ( 3225 ic->ic_vhtcaps)) 3226 chan_flags |= NET80211_CBW_FLAG_VHT80P80; 3227 } 3228 #endif 3229 3230 channels = hw->wiphy->bands[NL80211_BAND_5GHZ]->channels; 3231 for (i = 0; i < nchans && *n < maxchan; i++) { 3232 uint32_t nflags = 0; 3233 int cflags = chan_flags; 3234 3235 if (channels[i].flags & IEEE80211_CHAN_DISABLED) { 3236 printf("%s: %s: Skipping disabled chan " 3237 "[%u/%u/%#x]\n", ic->ic_name, __func__, 3238 channels[i].hw_value, 3239 channels[i].center_freq, channels[i].flags); 3240 continue; 3241 } 3242 if (channels[i].flags & IEEE80211_CHAN_NO_IR) 3243 nflags |= (IEEE80211_CHAN_NOADHOC|IEEE80211_CHAN_PASSIVE); 3244 if (channels[i].flags & IEEE80211_CHAN_RADAR) 3245 nflags |= IEEE80211_CHAN_DFS; 3246 if (channels[i].flags & IEEE80211_CHAN_NO_160MHZ) 3247 cflags &= ~(NET80211_CBW_FLAG_VHT160|NET80211_CBW_FLAG_VHT80P80); 3248 if (channels[i].flags & IEEE80211_CHAN_NO_80MHZ) 3249 cflags &= ~NET80211_CBW_FLAG_VHT80; 3250 /* XXX hwo to map the remaining enum ieee80211_channel_flags? */ 3251 if (channels[i].flags & IEEE80211_CHAN_NO_HT40) 3252 cflags &= ~NET80211_CBW_FLAG_HT40; 3253 3254 error = ieee80211_add_channel_cbw(c, maxchan, n, 3255 channels[i].hw_value, channels[i].center_freq, 3256 channels[i].max_power, 3257 nflags, bands, chan_flags); 3258 /* net80211::ENOBUFS: *n >= maxchans */ 3259 if (error != 0 && error != ENOBUFS) 3260 printf("%s: %s: Adding chan %u/%u/%#x/%#x/%#x/%#x " 3261 "returned error %d\n", ic->ic_name, 3262 __func__, channels[i].hw_value, 3263 channels[i].center_freq, channels[i].flags, 3264 nflags, chan_flags, cflags, error); 3265 if (error != 0) 3266 break; 3267 } 3268 } 3269 } 3270 3271 static void * 3272 lkpi_ieee80211_ifalloc(void) 3273 { 3274 struct ieee80211com *ic; 3275 3276 ic = malloc(sizeof(*ic), M_LKPI80211, M_WAITOK | M_ZERO); 3277 if (ic == NULL) 3278 return (NULL); 3279 3280 /* Setting these happens later when we have device information. */ 3281 ic->ic_softc = NULL; 3282 ic->ic_name = "linuxkpi"; 3283 3284 return (ic); 3285 } 3286 3287 struct ieee80211_hw * 3288 linuxkpi_ieee80211_alloc_hw(size_t priv_len, const struct ieee80211_ops *ops) 3289 { 3290 struct ieee80211_hw *hw; 3291 struct lkpi_hw *lhw; 3292 struct wiphy *wiphy; 3293 3294 /* Get us and the driver data also allocated. */ 3295 wiphy = wiphy_new(&linuxkpi_mac80211cfgops, sizeof(*lhw) + priv_len); 3296 if (wiphy == NULL) 3297 return (NULL); 3298 3299 lhw = wiphy_priv(wiphy); 3300 lhw->ops = ops; 3301 3302 mtx_init(&lhw->mtx, "lhw", NULL, MTX_DEF | MTX_RECURSE); 3303 sx_init_flags(&lhw->lvif_sx, "lhw-lvif", SX_RECURSE | SX_DUPOK); 3304 TAILQ_INIT(&lhw->lvif_head); 3305 3306 /* 3307 * XXX-BZ TODO make sure there is a "_null" function to all ops 3308 * not initialized. 3309 */ 3310 hw = LHW_TO_HW(lhw); 3311 hw->wiphy = wiphy; 3312 hw->conf.flags |= IEEE80211_CONF_IDLE; 3313 hw->priv = (void *)(lhw + 1); 3314 3315 /* BSD Specific. */ 3316 lhw->ic = lkpi_ieee80211_ifalloc(); 3317 if (lhw->ic == NULL) { 3318 ieee80211_free_hw(hw); 3319 return (NULL); 3320 } 3321 3322 IMPROVE(); 3323 3324 return (hw); 3325 } 3326 3327 void 3328 linuxkpi_ieee80211_iffree(struct ieee80211_hw *hw) 3329 { 3330 struct lkpi_hw *lhw; 3331 3332 lhw = HW_TO_LHW(hw); 3333 free(lhw->ic, M_LKPI80211); 3334 lhw->ic = NULL; 3335 3336 /* Cleanup more of lhw here or in wiphy_free()? */ 3337 sx_destroy(&lhw->lvif_sx); 3338 mtx_destroy(&lhw->mtx); 3339 IMPROVE(); 3340 } 3341 3342 void 3343 linuxkpi_set_ieee80211_dev(struct ieee80211_hw *hw, char *name) 3344 { 3345 struct lkpi_hw *lhw; 3346 struct ieee80211com *ic; 3347 3348 lhw = HW_TO_LHW(hw); 3349 ic = lhw->ic; 3350 3351 /* Now set a proper name before ieee80211_ifattach(). */ 3352 ic->ic_softc = lhw; 3353 ic->ic_name = name; 3354 3355 /* XXX-BZ do we also need to set wiphy name? */ 3356 } 3357 3358 struct ieee80211_hw * 3359 linuxkpi_wiphy_to_ieee80211_hw(struct wiphy *wiphy) 3360 { 3361 struct lkpi_hw *lhw; 3362 3363 lhw = wiphy_priv(wiphy); 3364 return (LHW_TO_HW(lhw)); 3365 } 3366 3367 static void 3368 lkpi_radiotap_attach(struct lkpi_hw *lhw) 3369 { 3370 struct ieee80211com *ic; 3371 3372 ic = lhw->ic; 3373 ieee80211_radiotap_attach(ic, 3374 &lhw->rtap_tx.wt_ihdr, sizeof(lhw->rtap_tx), 3375 LKPI_RTAP_TX_FLAGS_PRESENT, 3376 &lhw->rtap_rx.wr_ihdr, sizeof(lhw->rtap_rx), 3377 LKPI_RTAP_RX_FLAGS_PRESENT); 3378 } 3379 3380 int 3381 linuxkpi_ieee80211_ifattach(struct ieee80211_hw *hw) 3382 { 3383 struct ieee80211com *ic; 3384 struct lkpi_hw *lhw; 3385 int band, i; 3386 3387 lhw = HW_TO_LHW(hw); 3388 ic = lhw->ic; 3389 3390 /* We do it this late as wiphy->dev should be set for the name. */ 3391 lhw->workq = alloc_ordered_workqueue(wiphy_name(hw->wiphy), 0); 3392 if (lhw->workq == NULL) 3393 return (-EAGAIN); 3394 3395 /* XXX-BZ figure this out how they count his... */ 3396 if (!is_zero_ether_addr(hw->wiphy->perm_addr)) { 3397 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3398 hw->wiphy->perm_addr); 3399 } else if (hw->wiphy->n_addresses > 0) { 3400 /* We take the first one. */ 3401 IEEE80211_ADDR_COPY(ic->ic_macaddr, 3402 hw->wiphy->addresses[0].addr); 3403 } else { 3404 ic_printf(ic, "%s: warning, no hardware address!\n", __func__); 3405 } 3406 3407 #ifdef __not_yet__ 3408 /* See comment in lkpi_80211_txq_tx_one(). */ 3409 ic->ic_headroom = hw->extra_tx_headroom; 3410 #endif 3411 3412 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 3413 ic->ic_opmode = IEEE80211_M_STA; 3414 3415 /* Set device capabilities. */ 3416 /* XXX-BZ we need to get these from linux80211/drivers and convert. */ 3417 ic->ic_caps = 3418 IEEE80211_C_STA | 3419 IEEE80211_C_MONITOR | 3420 IEEE80211_C_WPA | /* WPA/RSN */ 3421 IEEE80211_C_WME | 3422 #if 0 3423 IEEE80211_C_PMGT | 3424 #endif 3425 IEEE80211_C_SHSLOT | /* short slot time supported */ 3426 IEEE80211_C_SHPREAMBLE /* short preamble supported */ 3427 ; 3428 #if 0 3429 /* Scanning is a different kind of beast to re-work. */ 3430 ic->ic_caps |= IEEE80211_C_BGSCAN; 3431 #endif 3432 if (lhw->ops->hw_scan) { 3433 /* 3434 * Advertise full-offload scanning. 3435 * 3436 * Not limiting to SINGLE_SCAN_ON_ALL_BANDS here as otherwise 3437 * we essentially disable hw_scan for all drivers not setting 3438 * the flag. 3439 */ 3440 ic->ic_flags_ext |= IEEE80211_FEXT_SCAN_OFFLOAD; 3441 } 3442 3443 #ifdef __notyet__ 3444 ic->ic_htcaps = IEEE80211_HTC_HT /* HT operation */ 3445 | IEEE80211_HTC_AMPDU /* A-MPDU tx/rx */ 3446 | IEEE80211_HTC_AMSDU /* A-MSDU tx/rx */ 3447 | IEEE80211_HTCAP_MAXAMSDU_3839 3448 /* max A-MSDU length */ 3449 | IEEE80211_HTCAP_SMPS_OFF; /* SM power save off */ 3450 ic->ic_htcaps |= IEEE80211_HTCAP_SHORTGI20; 3451 ic->ic_htcaps |= IEEE80211_HTCAP_CHWIDTH40 | IEEE80211_HTCAP_SHORTGI40; 3452 ic->ic_htcaps |= IEEE80211_HTCAP_TXSTBC; 3453 #endif 3454 3455 ic->ic_cryptocaps = 0; 3456 #ifdef TRY_HW_CRYPTO 3457 if (hw->wiphy->n_cipher_suites > 0) { 3458 for (i = 0; i < hw->wiphy->n_cipher_suites; i++) 3459 ic->ic_cryptocaps |= lkpi_l80211_to_net80211_cyphers( 3460 hw->wiphy->cipher_suites[i]); 3461 } 3462 #endif 3463 3464 lkpi_ic_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 3465 ic->ic_channels); 3466 3467 ieee80211_ifattach(ic); 3468 3469 ic->ic_update_mcast = lkpi_ic_update_mcast; 3470 ic->ic_update_promisc = lkpi_ic_update_promisc; 3471 ic->ic_update_chw = lkpi_ic_update_chw; 3472 ic->ic_parent = lkpi_ic_parent; 3473 ic->ic_scan_start = lkpi_ic_scan_start; 3474 ic->ic_scan_end = lkpi_ic_scan_end; 3475 ic->ic_set_channel = lkpi_ic_set_channel; 3476 ic->ic_transmit = lkpi_ic_transmit; 3477 ic->ic_raw_xmit = lkpi_ic_raw_xmit; 3478 ic->ic_vap_create = lkpi_ic_vap_create; 3479 ic->ic_vap_delete = lkpi_ic_vap_delete; 3480 ic->ic_getradiocaps = lkpi_ic_getradiocaps; 3481 ic->ic_wme.wme_update = lkpi_ic_wme_update; 3482 3483 lhw->ic_node_alloc = ic->ic_node_alloc; 3484 ic->ic_node_alloc = lkpi_ic_node_alloc; 3485 lhw->ic_node_init = ic->ic_node_init; 3486 ic->ic_node_init = lkpi_ic_node_init; 3487 lhw->ic_node_cleanup = ic->ic_node_cleanup; 3488 ic->ic_node_cleanup = lkpi_ic_node_cleanup; 3489 lhw->ic_node_free = ic->ic_node_free; 3490 ic->ic_node_free = lkpi_ic_node_free; 3491 3492 lkpi_radiotap_attach(lhw); 3493 3494 /* 3495 * Assign the first possible channel for now; seems Realtek drivers 3496 * expect one. 3497 * Also remember the amount of bands we support and the most rates 3498 * in any band so we can scale [(ext) sup rates] IE(s) accordingly. 3499 */ 3500 lhw->supbands = lhw->max_rates = 0; 3501 for (band = 0; band < NUM_NL80211_BANDS && 3502 hw->conf.chandef.chan == NULL; band++) { 3503 struct ieee80211_supported_band *supband; 3504 struct linuxkpi_ieee80211_channel *channels; 3505 3506 supband = hw->wiphy->bands[band]; 3507 if (supband == NULL || supband->n_channels == 0) 3508 continue; 3509 3510 lhw->supbands++; 3511 lhw->max_rates = max(lhw->max_rates, supband->n_bitrates); 3512 3513 channels = supband->channels; 3514 for (i = 0; i < supband->n_channels; i++) { 3515 3516 if (channels[i].flags & IEEE80211_CHAN_DISABLED) 3517 continue; 3518 3519 cfg80211_chandef_create(&hw->conf.chandef, &channels[i], 3520 NL80211_CHAN_NO_HT); 3521 break; 3522 } 3523 } 3524 3525 IMPROVE("see net80211::ieee80211_chan_init vs. wiphy->bands[].bitrates possibly in lkpi_ic_getradiocaps?"); 3526 3527 /* Make sure we do not support more than net80211 is willing to take. */ 3528 if (lhw->max_rates > IEEE80211_RATE_MAXSIZE) { 3529 ic_printf(ic, "%s: limiting max_rates %d to %d!\n", __func__, 3530 lhw->max_rates, IEEE80211_RATE_MAXSIZE); 3531 lhw->max_rates = IEEE80211_RATE_MAXSIZE; 3532 } 3533 3534 /* 3535 * The maximum supported bitrates on any band + size for 3536 * DSSS Parameter Set give our per-band IE size. 3537 * XXX-BZ FIXME add HT VHT ... later 3538 * SSID is the responsibility of the driver and goes on the side. 3539 * The user specified bits coming from the vap go into the 3540 * "common ies" fields. 3541 */ 3542 lhw->scan_ie_len = 2 + IEEE80211_RATE_SIZE; 3543 if (lhw->max_rates > IEEE80211_RATE_SIZE) 3544 lhw->scan_ie_len += 2 + (lhw->max_rates - IEEE80211_RATE_SIZE); 3545 /* 3546 * net80211 does not seem to support the DSSS Parameter Set but some of 3547 * the drivers insert it so calculate the extra fixed space in. 3548 */ 3549 lhw->scan_ie_len += 2 + 1; 3550 3551 /* Reduce the max_scan_ie_len "left" by the amount we consume already. */ 3552 if (hw->wiphy->max_scan_ie_len > 0) 3553 hw->wiphy->max_scan_ie_len -= lhw->scan_ie_len; 3554 3555 if (bootverbose) 3556 ieee80211_announce(ic); 3557 3558 return (0); 3559 } 3560 3561 void 3562 linuxkpi_ieee80211_ifdetach(struct ieee80211_hw *hw) 3563 { 3564 struct lkpi_hw *lhw; 3565 struct ieee80211com *ic; 3566 3567 lhw = HW_TO_LHW(hw); 3568 ic = lhw->ic; 3569 ieee80211_ifdetach(ic); 3570 } 3571 3572 void 3573 linuxkpi_ieee80211_iterate_interfaces(struct ieee80211_hw *hw, 3574 enum ieee80211_iface_iter flags, 3575 void(*iterfunc)(void *, uint8_t *, struct ieee80211_vif *), 3576 void *arg) 3577 { 3578 struct lkpi_hw *lhw; 3579 struct lkpi_vif *lvif; 3580 struct ieee80211_vif *vif; 3581 bool active, atomic, nin_drv; 3582 3583 lhw = HW_TO_LHW(hw); 3584 3585 if (flags & ~(IEEE80211_IFACE_ITER_NORMAL| 3586 IEEE80211_IFACE_ITER_RESUME_ALL| 3587 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER| 3588 IEEE80211_IFACE_ITER__ACTIVE|IEEE80211_IFACE_ITER__ATOMIC)) { 3589 ic_printf(lhw->ic, "XXX TODO %s flags(%#x) not yet supported.\n", 3590 __func__, flags); 3591 } 3592 3593 active = (flags & IEEE80211_IFACE_ITER__ACTIVE) != 0; 3594 atomic = (flags & IEEE80211_IFACE_ITER__ATOMIC) != 0; 3595 nin_drv = (flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) != 0; 3596 3597 if (atomic) 3598 LKPI_80211_LHW_LVIF_LOCK(lhw); 3599 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3600 struct ieee80211vap *vap; 3601 3602 vif = LVIF_TO_VIF(lvif); 3603 3604 /* 3605 * If we want "active" interfaces, we need to distinguish on 3606 * whether the driver knows about them or not to be able to 3607 * handle the "resume" case correctly. Skip the ones the 3608 * driver does not know about. 3609 */ 3610 if (active && !lvif->added_to_drv && 3611 (flags & IEEE80211_IFACE_ITER_RESUME_ALL) != 0) 3612 continue; 3613 3614 /* 3615 * If we shall skip interfaces not added to the driver do so 3616 * if we haven't yet. 3617 */ 3618 if (nin_drv && !lvif->added_to_drv) 3619 continue; 3620 3621 /* 3622 * Run the iterator function if we are either not asking 3623 * asking for active only or if the VAP is "running". 3624 */ 3625 /* XXX-BZ probably should have state in the lvif as well. */ 3626 vap = LVIF_TO_VAP(lvif); 3627 if (!active || (vap->iv_state != IEEE80211_S_INIT)) 3628 iterfunc(arg, vif->addr, vif); 3629 } 3630 if (atomic) 3631 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3632 } 3633 3634 void 3635 linuxkpi_ieee80211_iterate_keys(struct ieee80211_hw *hw, 3636 struct ieee80211_vif *vif, 3637 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_vif *, 3638 struct ieee80211_sta *, struct ieee80211_key_conf *, void *), 3639 void *arg) 3640 { 3641 3642 UNIMPLEMENTED; 3643 } 3644 3645 void 3646 linuxkpi_ieee80211_iterate_chan_contexts(struct ieee80211_hw *hw, 3647 void(*iterfunc)(struct ieee80211_hw *, struct ieee80211_chanctx_conf *, 3648 void *), 3649 void *arg) 3650 { 3651 3652 UNIMPLEMENTED; 3653 } 3654 3655 void 3656 linuxkpi_ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, 3657 void (*iterfunc)(void *, struct ieee80211_sta *), void *arg) 3658 { 3659 struct lkpi_hw *lhw; 3660 struct lkpi_vif *lvif; 3661 struct lkpi_sta *lsta; 3662 struct ieee80211_sta *sta; 3663 3664 KASSERT(hw != NULL && iterfunc != NULL, 3665 ("%s: hw %p iterfunc %p arg %p\n", __func__, hw, iterfunc, arg)); 3666 3667 lhw = HW_TO_LHW(hw); 3668 3669 LKPI_80211_LHW_LVIF_LOCK(lhw); 3670 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 3671 3672 LKPI_80211_LVIF_LOCK(lvif); 3673 TAILQ_FOREACH(lsta, &lvif->lsta_head, lsta_entry) { 3674 if (!lsta->added_to_drv) 3675 continue; 3676 sta = LSTA_TO_STA(lsta); 3677 iterfunc(arg, sta); 3678 } 3679 LKPI_80211_LVIF_UNLOCK(lvif); 3680 } 3681 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 3682 } 3683 3684 int 3685 linuxkpi_regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 3686 struct linuxkpi_ieee80211_regdomain *regd) 3687 { 3688 struct lkpi_hw *lhw; 3689 struct ieee80211com *ic; 3690 struct ieee80211_regdomain *rd; 3691 3692 lhw = wiphy_priv(wiphy); 3693 ic = lhw->ic; 3694 3695 rd = &ic->ic_regdomain; 3696 if (rd->isocc[0] == '\0') { 3697 rd->isocc[0] = regd->alpha2[0]; 3698 rd->isocc[1] = regd->alpha2[1]; 3699 } 3700 3701 TODO(); 3702 /* XXX-BZ finish the rest. */ 3703 3704 return (0); 3705 } 3706 3707 void 3708 linuxkpi_ieee80211_scan_completed(struct ieee80211_hw *hw, 3709 struct cfg80211_scan_info *info) 3710 { 3711 struct lkpi_hw *lhw; 3712 struct ieee80211com *ic; 3713 struct ieee80211_scan_state *ss; 3714 3715 lhw = wiphy_priv(hw->wiphy); 3716 ic = lhw->ic; 3717 ss = ic->ic_scan; 3718 3719 ieee80211_scan_done(ss->ss_vap); 3720 3721 LKPI_80211_LHW_LOCK(lhw); 3722 free(lhw->hw_req, M_LKPI80211); 3723 lhw->hw_req = NULL; 3724 lhw->scan_flags &= ~LKPI_SCAN_RUNNING; 3725 wakeup(lhw); 3726 LKPI_80211_LHW_UNLOCK(lhw); 3727 3728 return; 3729 } 3730 3731 void 3732 linuxkpi_ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, 3733 struct ieee80211_sta *sta, struct napi_struct *napi __unused) 3734 { 3735 struct epoch_tracker et; 3736 struct lkpi_hw *lhw; 3737 struct ieee80211com *ic; 3738 struct mbuf *m; 3739 struct skb_shared_info *shinfo; 3740 struct ieee80211_rx_status *rx_status; 3741 struct ieee80211_rx_stats rx_stats; 3742 struct ieee80211_node *ni; 3743 struct ieee80211vap *vap; 3744 struct ieee80211_hdr *hdr; 3745 struct lkpi_sta *lsta; 3746 int i, offset, ok; 3747 int8_t rssi; 3748 bool is_beacon; 3749 3750 if (skb->len < 2) { 3751 /* Need 80211 stats here. */ 3752 IMPROVE(); 3753 goto err; 3754 } 3755 3756 /* 3757 * For now do the data copy; we can later improve things. Might even 3758 * have an mbuf backing the skb data then? 3759 */ 3760 m = m_get2(skb->len, M_NOWAIT, MT_DATA, M_PKTHDR); 3761 if (m == NULL) 3762 goto err; 3763 m_copyback(m, 0, skb->tail - skb->data, skb->data); 3764 3765 shinfo = skb_shinfo(skb); 3766 offset = m->m_len; 3767 for (i = 0; i < shinfo->nr_frags; i++) { 3768 m_copyback(m, offset, shinfo->frags[i].size, 3769 (uint8_t *)linux_page_address(shinfo->frags[i].page) + 3770 shinfo->frags[i].offset); 3771 offset += shinfo->frags[i].size; 3772 } 3773 3774 rx_status = IEEE80211_SKB_RXCB(skb); 3775 3776 hdr = (void *)skb->data; 3777 is_beacon = ieee80211_is_beacon(hdr->frame_control); 3778 3779 #ifdef LINUXKPI_DEBUG_80211 3780 if (is_beacon && (linuxkpi_debug_80211 & D80211_TRACE_RX_BEACONS) == 0) 3781 goto no_trace_beacons; 3782 3783 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3784 printf("TRACE-RX: %s: skb %p a/l/d/t-len (%u/%u/%u/%u) " 3785 "h %p d %p t %p e %p sh %p (%u) m %p plen %u len %u%s\n", 3786 __func__, skb, skb->_alloc_len, skb->len, skb->data_len, 3787 skb->truesize, skb->head, skb->data, skb->tail, skb->end, 3788 shinfo, shinfo->nr_frags, 3789 m, m->m_pkthdr.len, m->m_len, is_beacon ? " beacon" : ""); 3790 3791 if (linuxkpi_debug_80211 & D80211_TRACE_RX_DUMP) 3792 hexdump(mtod(m, const void *), m->m_len, "RX (raw) ", 0); 3793 3794 /* Implement a dump_rxcb() !!! */ 3795 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3796 printf("TRACE %s: RXCB: %ju %ju %u, %#0x, %u, %#0x, %#0x, " 3797 "%u band %u, %u { %d %d %d %d }, %d, %#x %#x %#x %#x %u %u %u\n", 3798 __func__, 3799 (uintmax_t)rx_status->boottime_ns, 3800 (uintmax_t)rx_status->mactime, 3801 rx_status->device_timestamp, 3802 rx_status->flag, 3803 rx_status->freq, 3804 rx_status->bw, 3805 rx_status->encoding, 3806 rx_status->ampdu_reference, 3807 rx_status->band, 3808 rx_status->chains, 3809 rx_status->chain_signal[0], 3810 rx_status->chain_signal[1], 3811 rx_status->chain_signal[2], 3812 rx_status->chain_signal[3], 3813 rx_status->signal, 3814 rx_status->enc_flags, 3815 rx_status->he_dcm, 3816 rx_status->he_gi, 3817 rx_status->he_ru, 3818 rx_status->zero_length_psdu_type, 3819 rx_status->nss, 3820 rx_status->rate_idx); 3821 no_trace_beacons: 3822 #endif 3823 3824 memset(&rx_stats, 0, sizeof(rx_stats)); 3825 rx_stats.r_flags = IEEE80211_R_NF | IEEE80211_R_RSSI; 3826 /* XXX-BZ correct hardcoded rssi and noise floor, how? survey? */ 3827 rx_stats.c_nf = -96; 3828 if (ieee80211_hw_check(hw, SIGNAL_DBM) && 3829 !(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) 3830 rssi = rx_status->signal; 3831 else 3832 rssi = rx_stats.c_nf; 3833 /* 3834 * net80211 signal strength data are in .5 dBm units relative to 3835 * the current noise floor (see comment in ieee80211_node.h). 3836 */ 3837 rssi -= rx_stats.c_nf; 3838 rx_stats.c_rssi = rssi * 2; 3839 rx_stats.r_flags |= IEEE80211_R_BAND; 3840 rx_stats.c_band = 3841 lkpi_nl80211_band_to_net80211_band(rx_status->band); 3842 rx_stats.r_flags |= IEEE80211_R_FREQ | IEEE80211_R_IEEE; 3843 rx_stats.c_freq = rx_status->freq; 3844 rx_stats.c_ieee = ieee80211_mhz2ieee(rx_stats.c_freq, rx_stats.c_band); 3845 3846 /* XXX (*sta_statistics)() to get to some of that? */ 3847 /* XXX-BZ dump the FreeBSD version of rx_stats as well! */ 3848 3849 lhw = HW_TO_LHW(hw); 3850 ic = lhw->ic; 3851 3852 ok = ieee80211_add_rx_params(m, &rx_stats); 3853 if (ok == 0) { 3854 m_freem(m); 3855 counter_u64_add(ic->ic_ierrors, 1); 3856 goto err; 3857 } 3858 3859 if (sta != NULL) { 3860 lsta = STA_TO_LSTA(sta); 3861 ni = ieee80211_ref_node(lsta->ni); 3862 } else { 3863 struct ieee80211_frame_min *wh; 3864 3865 wh = mtod(m, struct ieee80211_frame_min *); 3866 ni = ieee80211_find_rxnode(ic, wh); 3867 if (ni != NULL) 3868 lsta = ni->ni_drv_data; 3869 } 3870 3871 if (ni != NULL) 3872 vap = ni->ni_vap; 3873 else 3874 /* 3875 * XXX-BZ can we improve this by looking at the frame hdr 3876 * or other meta-data passed up? 3877 */ 3878 vap = TAILQ_FIRST(&ic->ic_vaps); 3879 3880 #ifdef LINUXKPI_DEBUG_80211 3881 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3882 printf("TRACE %s: sta %p lsta %p state %d ni %p vap %p%s\n", 3883 __func__, sta, lsta, (lsta != NULL) ? lsta->state : -1, 3884 ni, vap, is_beacon ? " beacon" : ""); 3885 #endif 3886 3887 if (ni != NULL && vap != NULL && is_beacon && 3888 rx_status->device_timestamp > 0 && 3889 m->m_pkthdr.len >= sizeof(struct ieee80211_frame)) { 3890 struct lkpi_vif *lvif; 3891 struct ieee80211_vif *vif; 3892 struct ieee80211_frame *wh; 3893 3894 wh = mtod(m, struct ieee80211_frame *); 3895 if (!IEEE80211_ADDR_EQ(wh->i_addr2, ni->ni_bssid)) 3896 goto skip_device_ts; 3897 3898 lvif = VAP_TO_LVIF(vap); 3899 vif = LVIF_TO_VIF(lvif); 3900 3901 IMPROVE("TIMING_BEACON_ONLY?"); 3902 /* mac80211 specific (not net80211) so keep it here. */ 3903 vif->bss_conf.sync_device_ts = rx_status->device_timestamp; 3904 /* 3905 * net80211 should take care of the other information (sync_tsf, 3906 * sync_dtim_count) as otherwise we need to parse the beacon. 3907 */ 3908 } 3909 skip_device_ts: 3910 3911 if (vap != NULL && vap->iv_state > IEEE80211_S_INIT && 3912 ieee80211_radiotap_active_vap(vap)) { 3913 struct lkpi_radiotap_rx_hdr *rtap; 3914 3915 rtap = &lhw->rtap_rx; 3916 rtap->wr_tsft = rx_status->device_timestamp; 3917 rtap->wr_flags = 0; 3918 if (rx_status->enc_flags & RX_ENC_FLAG_SHORTPRE) 3919 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3920 if (rx_status->enc_flags & RX_ENC_FLAG_SHORT_GI) 3921 rtap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTGI; 3922 #if 0 /* .. or it does not given we strip it below. */ 3923 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3924 rtap->wr_flags |= IEEE80211_RADIOTAP_F_FCS; 3925 #endif 3926 if (rx_status->flag & RX_FLAG_FAILED_FCS_CRC) 3927 rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS; 3928 rtap->wr_rate = 0; 3929 IMPROVE(); 3930 /* XXX TODO status->encoding / rate_index / bw */ 3931 rtap->wr_chan_freq = htole16(rx_stats.c_freq); 3932 if (ic->ic_curchan->ic_ieee == rx_stats.c_ieee) 3933 rtap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 3934 rtap->wr_dbm_antsignal = rssi; 3935 rtap->wr_dbm_antnoise = rx_stats.c_nf; 3936 } 3937 3938 if (ieee80211_hw_check(hw, RX_INCLUDES_FCS)) 3939 m_adj(m, -IEEE80211_CRC_LEN); 3940 3941 NET_EPOCH_ENTER(et); 3942 if (ni != NULL) { 3943 ok = ieee80211_input_mimo(ni, m); 3944 ieee80211_free_node(ni); 3945 if (ok < 0) 3946 m_freem(m); 3947 } else { 3948 ok = ieee80211_input_mimo_all(ic, m); 3949 /* mbuf got consumed. */ 3950 } 3951 NET_EPOCH_EXIT(et); 3952 3953 #ifdef LINUXKPI_DEBUG_80211 3954 if (linuxkpi_debug_80211 & D80211_TRACE_RX) 3955 printf("TRACE %s: handled frame type %#0x\n", __func__, ok); 3956 #endif 3957 3958 IMPROVE(); 3959 3960 err: 3961 /* The skb is ours so we can free it :-) */ 3962 kfree_skb(skb); 3963 } 3964 3965 uint8_t 3966 linuxkpi_ieee80211_get_tid(struct ieee80211_hdr *hdr) 3967 { 3968 const struct ieee80211_frame *wh; 3969 3970 wh = (const struct ieee80211_frame *)hdr; 3971 return (ieee80211_gettid(wh)); 3972 } 3973 3974 struct wiphy * 3975 linuxkpi_wiphy_new(const struct cfg80211_ops *ops, size_t priv_len) 3976 { 3977 struct lkpi_wiphy *lwiphy; 3978 3979 lwiphy = kzalloc(sizeof(*lwiphy) + priv_len, GFP_KERNEL); 3980 if (lwiphy == NULL) 3981 return (NULL); 3982 lwiphy->ops = ops; 3983 3984 /* XXX TODO */ 3985 return (LWIPHY_TO_WIPHY(lwiphy)); 3986 } 3987 3988 void 3989 linuxkpi_wiphy_free(struct wiphy *wiphy) 3990 { 3991 struct lkpi_wiphy *lwiphy; 3992 3993 if (wiphy == NULL) 3994 return; 3995 3996 lwiphy = WIPHY_TO_LWIPHY(wiphy); 3997 kfree(lwiphy); 3998 } 3999 4000 uint32_t 4001 linuxkpi_ieee80211_channel_to_frequency(uint32_t channel, 4002 enum nl80211_band band) 4003 { 4004 4005 switch (band) { 4006 case NL80211_BAND_2GHZ: 4007 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_2GHZ)); 4008 break; 4009 case NL80211_BAND_5GHZ: 4010 return (ieee80211_ieee2mhz(channel, IEEE80211_CHAN_5GHZ)); 4011 break; 4012 default: 4013 /* XXX abort, retry, error, panic? */ 4014 break; 4015 } 4016 4017 return (0); 4018 } 4019 4020 uint32_t 4021 linuxkpi_ieee80211_frequency_to_channel(uint32_t freq, uint32_t flags __unused) 4022 { 4023 4024 return (ieee80211_mhz2ieee(freq, 0)); 4025 } 4026 4027 static struct lkpi_sta * 4028 lkpi_find_lsta_by_ni(struct lkpi_vif *lvif, struct ieee80211_node *ni) 4029 { 4030 struct lkpi_sta *lsta, *temp; 4031 4032 LKPI_80211_LVIF_LOCK(lvif); 4033 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4034 if (lsta->ni == ni) { 4035 LKPI_80211_LVIF_UNLOCK(lvif); 4036 return (lsta); 4037 } 4038 } 4039 LKPI_80211_LVIF_UNLOCK(lvif); 4040 4041 return (NULL); 4042 } 4043 4044 struct ieee80211_sta * 4045 linuxkpi_ieee80211_find_sta(struct ieee80211_vif *vif, const u8 *peer) 4046 { 4047 struct lkpi_vif *lvif; 4048 struct lkpi_sta *lsta, *temp; 4049 struct ieee80211_sta *sta; 4050 4051 lvif = VIF_TO_LVIF(vif); 4052 4053 LKPI_80211_LVIF_LOCK(lvif); 4054 TAILQ_FOREACH_SAFE(lsta, &lvif->lsta_head, lsta_entry, temp) { 4055 sta = LSTA_TO_STA(lsta); 4056 if (IEEE80211_ADDR_EQ(sta->addr, peer)) { 4057 LKPI_80211_LVIF_UNLOCK(lvif); 4058 return (sta); 4059 } 4060 } 4061 LKPI_80211_LVIF_UNLOCK(lvif); 4062 return (NULL); 4063 } 4064 4065 struct ieee80211_sta * 4066 linuxkpi_ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, 4067 const uint8_t *addr, const uint8_t *ourvifaddr) 4068 { 4069 struct lkpi_hw *lhw; 4070 struct lkpi_vif *lvif; 4071 struct lkpi_sta *lsta; 4072 struct ieee80211_vif *vif; 4073 struct ieee80211_sta *sta; 4074 4075 lhw = wiphy_priv(hw->wiphy); 4076 sta = NULL; 4077 4078 LKPI_80211_LHW_LVIF_LOCK(lhw); 4079 TAILQ_FOREACH(lvif, &lhw->lvif_head, lvif_entry) { 4080 4081 /* XXX-BZ check our address from the vif. */ 4082 4083 vif = LVIF_TO_VIF(lvif); 4084 if (ourvifaddr != NULL && 4085 !IEEE80211_ADDR_EQ(vif->addr, ourvifaddr)) 4086 continue; 4087 sta = linuxkpi_ieee80211_find_sta(vif, addr); 4088 if (sta != NULL) 4089 break; 4090 } 4091 LKPI_80211_LHW_LVIF_UNLOCK(lhw); 4092 4093 if (sta != NULL) { 4094 lsta = STA_TO_LSTA(sta); 4095 if (!lsta->added_to_drv) 4096 return (NULL); 4097 } 4098 4099 return (sta); 4100 } 4101 4102 struct sk_buff * 4103 linuxkpi_ieee80211_tx_dequeue(struct ieee80211_hw *hw, 4104 struct ieee80211_txq *txq) 4105 { 4106 struct lkpi_txq *ltxq; 4107 struct sk_buff *skb; 4108 4109 ltxq = TXQ_TO_LTXQ(txq); 4110 ltxq->seen_dequeue = true; 4111 4112 skb = skb_dequeue(<xq->skbq); 4113 4114 return (skb); 4115 } 4116 4117 void 4118 linuxkpi_ieee80211_txq_get_depth(struct ieee80211_txq *txq, 4119 unsigned long *frame_cnt, unsigned long *byte_cnt) 4120 { 4121 struct lkpi_txq *ltxq; 4122 struct sk_buff *skb; 4123 unsigned long fc, bc; 4124 4125 ltxq = TXQ_TO_LTXQ(txq); 4126 4127 fc = bc = 0; 4128 skb_queue_walk(<xq->skbq, skb) { 4129 fc++; 4130 bc += skb->len; 4131 } 4132 if (frame_cnt) 4133 *frame_cnt = fc; 4134 if (byte_cnt) 4135 *byte_cnt = bc; 4136 4137 /* Validate that this is doing the correct thing. */ 4138 /* Should we keep track on en/dequeue? */ 4139 IMPROVE(); 4140 } 4141 4142 /* 4143 * We are called from ieee80211_free_txskb() or ieee80211_tx_status(). 4144 * The latter tries to derive the success status from the info flags 4145 * passed back from the driver. rawx_mit() saves the ni on the m and the 4146 * m on the skb for us to be able to give feedback to net80211. 4147 */ 4148 void 4149 linuxkpi_ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb, 4150 int status) 4151 { 4152 struct ieee80211_node *ni; 4153 struct mbuf *m; 4154 4155 m = skb->m; 4156 skb->m = NULL; 4157 4158 if (m != NULL) { 4159 ni = m->m_pkthdr.PH_loc.ptr; 4160 /* Status: 0 is ok, != 0 is error. */ 4161 ieee80211_tx_complete(ni, m, status); 4162 /* ni & mbuf were consumed. */ 4163 } 4164 4165 kfree_skb(skb); 4166 } 4167 4168 void 4169 linuxkpi_ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) 4170 { 4171 struct ieee80211_tx_info *info; 4172 struct ieee80211_ratectl_tx_status txs; 4173 struct ieee80211_node *ni; 4174 int status; 4175 4176 info = IEEE80211_SKB_CB(skb); 4177 4178 if (skb->m != NULL) { 4179 struct mbuf *m; 4180 4181 m = skb->m; 4182 ni = m->m_pkthdr.PH_loc.ptr; 4183 memset(&txs, 0, sizeof(txs)); 4184 } else { 4185 ni = NULL; 4186 } 4187 4188 if (info->flags & IEEE80211_TX_STAT_ACK) { 4189 status = 0; /* No error. */ 4190 txs.status = IEEE80211_RATECTL_TX_SUCCESS; 4191 } else { 4192 status = 1; 4193 txs.status = IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED; 4194 } 4195 4196 if (ni != NULL) { 4197 int ridx __unused; 4198 #ifdef LINUXKPI_DEBUG_80211 4199 int old_rate; 4200 4201 old_rate = ni->ni_vap->iv_bss->ni_txrate; 4202 #endif 4203 txs.pktlen = skb->len; 4204 txs.flags |= IEEE80211_RATECTL_STATUS_PKTLEN; 4205 if (info->status.rates[0].count > 1) { 4206 txs.long_retries = info->status.rates[0].count - 1; /* 1 + retries in drivers. */ 4207 txs.flags |= IEEE80211_RATECTL_STATUS_LONG_RETRY; 4208 } 4209 #if 0 /* Unused in net80211 currently. */ 4210 /* XXX-BZ conver;t check .flags for MCS/VHT/.. */ 4211 txs.final_rate = info->status.rates[0].idx; 4212 txs.flags |= IEEE80211_RATECTL_STATUS_FINAL_RATE; 4213 #endif 4214 if (info->status.is_valid_ack_signal) { 4215 txs.rssi = info->status.ack_signal; /* XXX-BZ CONVERT? */ 4216 txs.flags |= IEEE80211_RATECTL_STATUS_RSSI; 4217 } 4218 4219 IMPROVE("only update of rate matches but that requires us to get a proper rate"); 4220 ieee80211_ratectl_tx_complete(ni, &txs); 4221 ridx = ieee80211_ratectl_rate(ni->ni_vap->iv_bss, NULL, 0); 4222 4223 #ifdef LINUXKPI_DEBUG_80211 4224 if (linuxkpi_debug_80211 & D80211_TRACE_TX) { 4225 printf("TX-RATE: %s: old %d new %d ridx %d, " 4226 "long_retries %d\n", __func__, 4227 old_rate, ni->ni_vap->iv_bss->ni_txrate, 4228 ridx, txs.long_retries); 4229 } 4230 #endif 4231 } 4232 4233 #ifdef LINUXKPI_DEBUG_80211 4234 if (linuxkpi_debug_80211 & D80211_TRACE_TX) 4235 printf("TX-STATUS: %s: hw %p skb %p status %d : flags %#x " 4236 "band %u hw_queue %u tx_time_est %d : " 4237 "rates [ %u %u %#x, %u %u %#x, %u %u %#x, %u %u %#x ] " 4238 "ack_signal %u ampdu_ack_len %u ampdu_len %u antenna %u " 4239 "tx_time %u is_valid_ack_signal %u " 4240 "status_driver_data [ %p %p ]\n", 4241 __func__, hw, skb, status, info->flags, 4242 info->band, info->hw_queue, info->tx_time_est, 4243 info->status.rates[0].idx, info->status.rates[0].count, 4244 info->status.rates[0].flags, 4245 info->status.rates[1].idx, info->status.rates[1].count, 4246 info->status.rates[1].flags, 4247 info->status.rates[2].idx, info->status.rates[2].count, 4248 info->status.rates[2].flags, 4249 info->status.rates[3].idx, info->status.rates[3].count, 4250 info->status.rates[3].flags, 4251 info->status.ack_signal, info->status.ampdu_ack_len, 4252 info->status.ampdu_len, info->status.antenna, 4253 info->status.tx_time, info->status.is_valid_ack_signal, 4254 info->status.status_driver_data[0], 4255 info->status.status_driver_data[1]); 4256 #endif 4257 4258 linuxkpi_ieee80211_free_txskb(hw, skb, status); 4259 } 4260 4261 /* 4262 * This is an internal bandaid for the moment for the way we glue 4263 * skbs and mbufs together for TX. Once we have skbs backed by 4264 * mbufs this should go away. 4265 * This is a public function but kept on the private KPI (lkpi_) 4266 * and is not exposed by a header file. 4267 */ 4268 static void 4269 lkpi_ieee80211_free_skb_mbuf(void *p) 4270 { 4271 struct ieee80211_node *ni; 4272 struct mbuf *m; 4273 4274 if (p == NULL) 4275 return; 4276 4277 m = (struct mbuf *)p; 4278 M_ASSERTPKTHDR(m); 4279 4280 ni = m->m_pkthdr.PH_loc.ptr; 4281 m->m_pkthdr.PH_loc.ptr = NULL; 4282 if (ni != NULL) 4283 ieee80211_free_node(ni); 4284 m_freem(m); 4285 } 4286 4287 void 4288 linuxkpi_ieee80211_queue_delayed_work(struct ieee80211_hw *hw, 4289 struct delayed_work *w, int delay) 4290 { 4291 struct lkpi_hw *lhw; 4292 4293 /* Need to make sure hw is in a stable (non-suspended) state. */ 4294 IMPROVE(); 4295 4296 lhw = HW_TO_LHW(hw); 4297 queue_delayed_work(lhw->workq, w, delay); 4298 } 4299 4300 void 4301 linuxkpi_ieee80211_queue_work(struct ieee80211_hw *hw, 4302 struct work_struct *w) 4303 { 4304 struct lkpi_hw *lhw; 4305 4306 /* Need to make sure hw is in a stable (non-suspended) state. */ 4307 IMPROVE(); 4308 4309 lhw = HW_TO_LHW(hw); 4310 queue_work(lhw->workq, w); 4311 } 4312 4313 struct sk_buff * 4314 linuxkpi_ieee80211_probereq_get(struct ieee80211_hw *hw, uint8_t *addr, 4315 uint8_t *ssid, size_t ssid_len, size_t tailroom) 4316 { 4317 struct sk_buff *skb; 4318 struct ieee80211_frame *wh; 4319 uint8_t *p; 4320 size_t len; 4321 4322 len = sizeof(*wh); 4323 len += 2 + ssid_len; 4324 4325 skb = dev_alloc_skb(hw->extra_tx_headroom + len + tailroom); 4326 if (skb == NULL) 4327 return (NULL); 4328 4329 skb_reserve(skb, hw->extra_tx_headroom); 4330 4331 wh = skb_put_zero(skb, sizeof(*wh)); 4332 wh->i_fc[0] = IEEE80211_FC0_VERSION_0; 4333 wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT; 4334 IEEE80211_ADDR_COPY(wh->i_addr1, ieee80211broadcastaddr); 4335 IEEE80211_ADDR_COPY(wh->i_addr2, addr); 4336 IEEE80211_ADDR_COPY(wh->i_addr3, ieee80211broadcastaddr); 4337 4338 p = skb_put(skb, 2 + ssid_len); 4339 *p++ = IEEE80211_ELEMID_SSID; 4340 *p++ = ssid_len; 4341 if (ssid_len > 0) 4342 memcpy(p, ssid, ssid_len); 4343 4344 return (skb); 4345 } 4346 4347 struct sk_buff * 4348 linuxkpi_ieee80211_pspoll_get(struct ieee80211_hw *hw, 4349 struct ieee80211_vif *vif) 4350 { 4351 struct lkpi_vif *lvif; 4352 struct ieee80211vap *vap; 4353 struct sk_buff *skb; 4354 struct ieee80211_frame_pspoll *psp; 4355 uint16_t v; 4356 4357 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*psp)); 4358 if (skb == NULL) 4359 return (NULL); 4360 4361 skb_reserve(skb, hw->extra_tx_headroom); 4362 4363 lvif = VIF_TO_LVIF(vif); 4364 vap = LVIF_TO_VAP(lvif); 4365 4366 psp = skb_put_zero(skb, sizeof(*psp)); 4367 psp->i_fc[0] = IEEE80211_FC0_VERSION_0; 4368 psp->i_fc[0] |= IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL; 4369 v = htole16(vif->bss_conf.aid | 1<<15 | 1<<16); 4370 memcpy(&psp->i_aid, &v, sizeof(v)); 4371 IEEE80211_ADDR_COPY(psp->i_bssid, vap->iv_bss->ni_macaddr); 4372 IEEE80211_ADDR_COPY(psp->i_ta, vif->addr); 4373 4374 return (skb); 4375 } 4376 4377 struct sk_buff * 4378 linuxkpi_ieee80211_nullfunc_get(struct ieee80211_hw *hw, 4379 struct ieee80211_vif *vif, bool qos) 4380 { 4381 struct lkpi_vif *lvif; 4382 struct ieee80211vap *vap; 4383 struct sk_buff *skb; 4384 struct ieee80211_frame *nullf; 4385 4386 skb = dev_alloc_skb(hw->extra_tx_headroom + sizeof(*nullf)); 4387 if (skb == NULL) 4388 return (NULL); 4389 4390 skb_reserve(skb, hw->extra_tx_headroom); 4391 4392 lvif = VIF_TO_LVIF(vif); 4393 vap = LVIF_TO_VAP(lvif); 4394 4395 nullf = skb_put_zero(skb, sizeof(*nullf)); 4396 nullf->i_fc[0] = IEEE80211_FC0_VERSION_0; 4397 nullf->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA; 4398 nullf->i_fc[1] = IEEE80211_FC1_DIR_TODS; 4399 4400 IEEE80211_ADDR_COPY(nullf->i_addr1, vap->iv_bss->ni_bssid); 4401 IEEE80211_ADDR_COPY(nullf->i_addr2, vif->addr); 4402 IEEE80211_ADDR_COPY(nullf->i_addr3, vap->iv_bss->ni_macaddr); 4403 4404 return (skb); 4405 } 4406 4407 struct wireless_dev * 4408 linuxkpi_ieee80211_vif_to_wdev(struct ieee80211_vif *vif) 4409 { 4410 struct lkpi_vif *lvif; 4411 4412 lvif = VIF_TO_LVIF(vif); 4413 return (&lvif->wdev); 4414 } 4415 4416 void 4417 linuxkpi_ieee80211_connection_loss(struct ieee80211_vif *vif) 4418 { 4419 struct lkpi_vif *lvif; 4420 struct ieee80211vap *vap; 4421 enum ieee80211_state nstate; 4422 int arg; 4423 4424 lvif = VIF_TO_LVIF(vif); 4425 vap = LVIF_TO_VAP(lvif); 4426 4427 /* 4428 * Go to init; otherwise we need to elaborately check state and 4429 * handle accordingly, e.g., if in RUN we could call iv_bmiss. 4430 * Let the statemachine handle all neccessary changes. 4431 */ 4432 nstate = IEEE80211_S_INIT; 4433 arg = 0; /* Not a valid reason. */ 4434 4435 #ifdef LINUXKPI_DEBUG_80211 4436 if (linuxkpi_debug_80211 & D80211_TRACE) 4437 ic_printf(vap->iv_ic, "%s: vif %p\n", __func__, vif); 4438 #endif 4439 ieee80211_new_state(vap, nstate, arg); 4440 } 4441 4442 void 4443 linuxkpi_ieee80211_beacon_loss(struct ieee80211_vif *vif) 4444 { 4445 struct lkpi_vif *lvif; 4446 struct ieee80211vap *vap; 4447 4448 lvif = VIF_TO_LVIF(vif); 4449 vap = LVIF_TO_VAP(lvif); 4450 4451 #ifdef LINUXKPI_DEBUG_80211 4452 if (linuxkpi_debug_80211 & D80211_TRACE || vap->iv_state != IEEE80211_S_RUN) 4453 ic_printf(vap->iv_ic, "%s: vif %p vap %p state %s\n", __func__, 4454 vif, vap, ieee80211_state_name[vap->iv_state]); 4455 #endif 4456 ieee80211_beacon_miss(vap->iv_ic); 4457 } 4458 4459 MODULE_VERSION(linuxkpi_wlan, 1); 4460 MODULE_DEPEND(linuxkpi_wlan, linuxkpi, 1, 1, 1); 4461 MODULE_DEPEND(linuxkpi_wlan, wlan, 1, 1, 1); 4462